1 /* tc-ia64.c -- Assembler for the HP/Intel IA-64 architecture.
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
4 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to
20 the Free Software Foundation, 51 Franklin Street - Fifth Floor,
21 Boston, MA 02110-1301, USA. */
35 - labels are wrong if automatic alignment is introduced
36 (e.g., checkout the second real10 definition in test-data.s)
38 <reg>.safe_across_calls and any other DV-related directives I don't
39 have documentation for.
40 verify mod-sched-brs reads/writes are checked/marked (and other
46 #include "safe-ctype.h"
47 #include "dwarf2dbg.h"
50 #include "opcode/ia64.h"
58 #define NELEMS(a) ((int) (sizeof (a)/sizeof ((a)[0])))
60 /* Some systems define MIN in, e.g., param.h. */
62 #define MIN(a,b) ((a) < (b) ? (a) : (b))
65 #define PREV_SLOT md.slot[(md.curr_slot + NUM_SLOTS - 1) % NUM_SLOTS]
66 #define CURR_SLOT md.slot[md.curr_slot]
68 #define O_pseudo_fixup (O_max + 1)
72 /* IA-64 ABI section pseudo-ops. */
73 SPECIAL_SECTION_BSS
= 0,
75 SPECIAL_SECTION_SDATA
,
76 SPECIAL_SECTION_RODATA
,
77 SPECIAL_SECTION_COMMENT
,
78 SPECIAL_SECTION_UNWIND
,
79 SPECIAL_SECTION_UNWIND_INFO
,
80 /* HPUX specific section pseudo-ops. */
81 SPECIAL_SECTION_INIT_ARRAY
,
82 SPECIAL_SECTION_FINI_ARRAY
,
99 FUNC_LT_FPTR_RELATIVE
,
101 FUNC_LT_DTP_RELATIVE
,
109 REG_FR
= (REG_GR
+ 128),
110 REG_AR
= (REG_FR
+ 128),
111 REG_CR
= (REG_AR
+ 128),
112 REG_P
= (REG_CR
+ 128),
113 REG_BR
= (REG_P
+ 64),
114 REG_IP
= (REG_BR
+ 8),
121 /* The following are pseudo-registers for use by gas only. */
132 /* The following pseudo-registers are used for unwind directives only: */
140 DYNREG_GR
= 0, /* dynamic general purpose register */
141 DYNREG_FR
, /* dynamic floating point register */
142 DYNREG_PR
, /* dynamic predicate register */
146 enum operand_match_result
149 OPERAND_OUT_OF_RANGE
,
153 /* On the ia64, we can't know the address of a text label until the
154 instructions are packed into a bundle. To handle this, we keep
155 track of the list of labels that appear in front of each
159 struct label_fix
*next
;
161 bfd_boolean dw2_mark_labels
;
164 /* This is the endianness of the current section. */
165 extern int target_big_endian
;
167 /* This is the default endianness. */
168 static int default_big_endian
= TARGET_BYTES_BIG_ENDIAN
;
170 void (*ia64_number_to_chars
) PARAMS ((char *, valueT
, int));
172 static void ia64_float_to_chars_bigendian
173 PARAMS ((char *, LITTLENUM_TYPE
*, int));
174 static void ia64_float_to_chars_littleendian
175 PARAMS ((char *, LITTLENUM_TYPE
*, int));
176 static void (*ia64_float_to_chars
)
177 PARAMS ((char *, LITTLENUM_TYPE
*, int));
179 static struct hash_control
*alias_hash
;
180 static struct hash_control
*alias_name_hash
;
181 static struct hash_control
*secalias_hash
;
182 static struct hash_control
*secalias_name_hash
;
184 /* List of chars besides those in app.c:symbol_chars that can start an
185 operand. Used to prevent the scrubber eating vital white-space. */
186 const char ia64_symbol_chars
[] = "@?";
188 /* Characters which always start a comment. */
189 const char comment_chars
[] = "";
191 /* Characters which start a comment at the beginning of a line. */
192 const char line_comment_chars
[] = "#";
194 /* Characters which may be used to separate multiple commands on a
196 const char line_separator_chars
[] = ";{}";
198 /* Characters which are used to indicate an exponent in a floating
200 const char EXP_CHARS
[] = "eE";
202 /* Characters which mean that a number is a floating point constant,
204 const char FLT_CHARS
[] = "rRsSfFdDxXpP";
206 /* ia64-specific option processing: */
208 const char *md_shortopts
= "m:N:x::";
210 struct option md_longopts
[] =
212 #define OPTION_MCONSTANT_GP (OPTION_MD_BASE + 1)
213 {"mconstant-gp", no_argument
, NULL
, OPTION_MCONSTANT_GP
},
214 #define OPTION_MAUTO_PIC (OPTION_MD_BASE + 2)
215 {"mauto-pic", no_argument
, NULL
, OPTION_MAUTO_PIC
}
218 size_t md_longopts_size
= sizeof (md_longopts
);
222 struct hash_control
*pseudo_hash
; /* pseudo opcode hash table */
223 struct hash_control
*reg_hash
; /* register name hash table */
224 struct hash_control
*dynreg_hash
; /* dynamic register hash table */
225 struct hash_control
*const_hash
; /* constant hash table */
226 struct hash_control
*entry_hash
; /* code entry hint hash table */
228 /* If X_op is != O_absent, the registername for the instruction's
229 qualifying predicate. If NULL, p0 is assumed for instructions
230 that are predicatable. */
233 /* Optimize for which CPU. */
240 /* What to do when hint.b is used. */
252 explicit_mode
: 1, /* which mode we're in */
253 default_explicit_mode
: 1, /* which mode is the default */
254 mode_explicitly_set
: 1, /* was the current mode explicitly set? */
256 keep_pending_output
: 1;
258 /* What to do when something is wrong with unwind directives. */
261 unwind_check_warning
,
265 /* Each bundle consists of up to three instructions. We keep
266 track of four most recent instructions so we can correctly set
267 the end_of_insn_group for the last instruction in a bundle. */
269 int num_slots_in_use
;
273 end_of_insn_group
: 1,
274 manual_bundling_on
: 1,
275 manual_bundling_off
: 1,
276 loc_directive_seen
: 1;
277 signed char user_template
; /* user-selected template, if any */
278 unsigned char qp_regno
; /* qualifying predicate */
279 /* This duplicates a good fraction of "struct fix" but we
280 can't use a "struct fix" instead since we can't call
281 fix_new_exp() until we know the address of the instruction. */
285 bfd_reloc_code_real_type code
;
286 enum ia64_opnd opnd
; /* type of operand in need of fix */
287 unsigned int is_pcrel
: 1; /* is operand pc-relative? */
288 expressionS expr
; /* the value to be inserted */
290 fixup
[2]; /* at most two fixups per insn */
291 struct ia64_opcode
*idesc
;
292 struct label_fix
*label_fixups
;
293 struct label_fix
*tag_fixups
;
294 struct unw_rec_list
*unwind_record
; /* Unwind directive. */
297 unsigned int src_line
;
298 struct dwarf2_line_info debug_line
;
306 struct dynreg
*next
; /* next dynamic register */
308 unsigned short base
; /* the base register number */
309 unsigned short num_regs
; /* # of registers in this set */
311 *dynreg
[DYNREG_NUM_TYPES
], in
, loc
, out
, rot
;
313 flagword flags
; /* ELF-header flags */
316 unsigned hint
:1; /* is this hint currently valid? */
317 bfd_vma offset
; /* mem.offset offset */
318 bfd_vma base
; /* mem.offset base */
321 int path
; /* number of alt. entry points seen */
322 const char **entry_labels
; /* labels of all alternate paths in
323 the current DV-checking block. */
324 int maxpaths
; /* size currently allocated for
327 int pointer_size
; /* size in bytes of a pointer */
328 int pointer_size_shift
; /* shift size of a pointer for alignment */
330 symbolS
*indregsym
[IND_RR
- IND_CPUID
+ 1];
334 /* These are not const, because they are modified to MMI for non-itanium1
336 /* MFI bundle of nops. */
337 static unsigned char le_nop
[16] =
339 0x0c, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
340 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00
342 /* MFI bundle of nops with stop-bit. */
343 static unsigned char le_nop_stop
[16] =
345 0x0d, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
346 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00
349 /* application registers: */
355 #define AR_BSPSTORE 18
380 {"ar.k0", AR_K0
}, {"ar.k1", AR_K0
+ 1},
381 {"ar.k2", AR_K0
+ 2}, {"ar.k3", AR_K0
+ 3},
382 {"ar.k4", AR_K0
+ 4}, {"ar.k5", AR_K0
+ 5},
383 {"ar.k6", AR_K0
+ 6}, {"ar.k7", AR_K7
},
384 {"ar.rsc", AR_RSC
}, {"ar.bsp", AR_BSP
},
385 {"ar.bspstore", AR_BSPSTORE
}, {"ar.rnat", AR_RNAT
},
386 {"ar.fcr", AR_FCR
}, {"ar.eflag", AR_EFLAG
},
387 {"ar.csd", AR_CSD
}, {"ar.ssd", AR_SSD
},
388 {"ar.cflg", AR_CFLG
}, {"ar.fsr", AR_FSR
},
389 {"ar.fir", AR_FIR
}, {"ar.fdr", AR_FDR
},
390 {"ar.ccv", AR_CCV
}, {"ar.unat", AR_UNAT
},
391 {"ar.fpsr", AR_FPSR
}, {"ar.itc", AR_ITC
},
392 {"ar.pfs", AR_PFS
}, {"ar.lc", AR_LC
},
396 /* control registers: */
435 {"cr.gpta", CR_GPTA
},
436 {"cr.ipsr", CR_IPSR
},
440 {"cr.itir", CR_ITIR
},
441 {"cr.iipa", CR_IIPA
},
449 {"cr.irr0", CR_IRR0
},
450 {"cr.irr1", CR_IRR0
+ 1},
451 {"cr.irr2", CR_IRR0
+ 2},
452 {"cr.irr3", CR_IRR3
},
455 {"cr.cmcv", CR_CMCV
},
456 {"cr.lrr0", CR_LRR0
},
465 static const struct const_desc
472 /* PSR constant masks: */
475 {"psr.be", ((valueT
) 1) << 1},
476 {"psr.up", ((valueT
) 1) << 2},
477 {"psr.ac", ((valueT
) 1) << 3},
478 {"psr.mfl", ((valueT
) 1) << 4},
479 {"psr.mfh", ((valueT
) 1) << 5},
481 {"psr.ic", ((valueT
) 1) << 13},
482 {"psr.i", ((valueT
) 1) << 14},
483 {"psr.pk", ((valueT
) 1) << 15},
485 {"psr.dt", ((valueT
) 1) << 17},
486 {"psr.dfl", ((valueT
) 1) << 18},
487 {"psr.dfh", ((valueT
) 1) << 19},
488 {"psr.sp", ((valueT
) 1) << 20},
489 {"psr.pp", ((valueT
) 1) << 21},
490 {"psr.di", ((valueT
) 1) << 22},
491 {"psr.si", ((valueT
) 1) << 23},
492 {"psr.db", ((valueT
) 1) << 24},
493 {"psr.lp", ((valueT
) 1) << 25},
494 {"psr.tb", ((valueT
) 1) << 26},
495 {"psr.rt", ((valueT
) 1) << 27},
496 /* 28-31: reserved */
497 /* 32-33: cpl (current privilege level) */
498 {"psr.is", ((valueT
) 1) << 34},
499 {"psr.mc", ((valueT
) 1) << 35},
500 {"psr.it", ((valueT
) 1) << 36},
501 {"psr.id", ((valueT
) 1) << 37},
502 {"psr.da", ((valueT
) 1) << 38},
503 {"psr.dd", ((valueT
) 1) << 39},
504 {"psr.ss", ((valueT
) 1) << 40},
505 /* 41-42: ri (restart instruction) */
506 {"psr.ed", ((valueT
) 1) << 43},
507 {"psr.bn", ((valueT
) 1) << 44},
510 /* indirect register-sets/memory: */
519 { "CPUID", IND_CPUID
},
520 { "cpuid", IND_CPUID
},
532 /* Pseudo functions used to indicate relocation types (these functions
533 start with an at sign (@). */
555 /* reloc pseudo functions (these must come first!): */
556 { "dtpmod", PSEUDO_FUNC_RELOC
, { 0 } },
557 { "dtprel", PSEUDO_FUNC_RELOC
, { 0 } },
558 { "fptr", PSEUDO_FUNC_RELOC
, { 0 } },
559 { "gprel", PSEUDO_FUNC_RELOC
, { 0 } },
560 { "ltoff", PSEUDO_FUNC_RELOC
, { 0 } },
561 { "ltoffx", PSEUDO_FUNC_RELOC
, { 0 } },
562 { "pcrel", PSEUDO_FUNC_RELOC
, { 0 } },
563 { "pltoff", PSEUDO_FUNC_RELOC
, { 0 } },
564 { "secrel", PSEUDO_FUNC_RELOC
, { 0 } },
565 { "segrel", PSEUDO_FUNC_RELOC
, { 0 } },
566 { "tprel", PSEUDO_FUNC_RELOC
, { 0 } },
567 { "ltv", PSEUDO_FUNC_RELOC
, { 0 } },
568 { NULL
, 0, { 0 } }, /* placeholder for FUNC_LT_FPTR_RELATIVE */
569 { NULL
, 0, { 0 } }, /* placeholder for FUNC_LT_DTP_MODULE */
570 { NULL
, 0, { 0 } }, /* placeholder for FUNC_LT_DTP_RELATIVE */
571 { NULL
, 0, { 0 } }, /* placeholder for FUNC_LT_TP_RELATIVE */
572 { "iplt", PSEUDO_FUNC_RELOC
, { 0 } },
574 /* mbtype4 constants: */
575 { "alt", PSEUDO_FUNC_CONST
, { 0xa } },
576 { "brcst", PSEUDO_FUNC_CONST
, { 0x0 } },
577 { "mix", PSEUDO_FUNC_CONST
, { 0x8 } },
578 { "rev", PSEUDO_FUNC_CONST
, { 0xb } },
579 { "shuf", PSEUDO_FUNC_CONST
, { 0x9 } },
581 /* fclass constants: */
582 { "nat", PSEUDO_FUNC_CONST
, { 0x100 } },
583 { "qnan", PSEUDO_FUNC_CONST
, { 0x080 } },
584 { "snan", PSEUDO_FUNC_CONST
, { 0x040 } },
585 { "pos", PSEUDO_FUNC_CONST
, { 0x001 } },
586 { "neg", PSEUDO_FUNC_CONST
, { 0x002 } },
587 { "zero", PSEUDO_FUNC_CONST
, { 0x004 } },
588 { "unorm", PSEUDO_FUNC_CONST
, { 0x008 } },
589 { "norm", PSEUDO_FUNC_CONST
, { 0x010 } },
590 { "inf", PSEUDO_FUNC_CONST
, { 0x020 } },
592 { "natval", PSEUDO_FUNC_CONST
, { 0x100 } }, /* old usage */
594 /* hint constants: */
595 { "pause", PSEUDO_FUNC_CONST
, { 0x0 } },
597 /* unwind-related constants: */
598 { "svr4", PSEUDO_FUNC_CONST
, { ELFOSABI_NONE
} },
599 { "hpux", PSEUDO_FUNC_CONST
, { ELFOSABI_HPUX
} },
600 { "nt", PSEUDO_FUNC_CONST
, { 2 } }, /* conflicts w/ELFOSABI_NETBSD */
601 { "linux", PSEUDO_FUNC_CONST
, { ELFOSABI_LINUX
} },
602 { "freebsd", PSEUDO_FUNC_CONST
, { ELFOSABI_FREEBSD
} },
603 { "openvms", PSEUDO_FUNC_CONST
, { ELFOSABI_OPENVMS
} },
604 { "nsk", PSEUDO_FUNC_CONST
, { ELFOSABI_NSK
} },
606 /* unwind-related registers: */
607 { "priunat",PSEUDO_FUNC_REG
, { REG_PRIUNAT
} }
610 /* 41-bit nop opcodes (one per unit): */
611 static const bfd_vma nop
[IA64_NUM_UNITS
] =
613 0x0000000000LL
, /* NIL => break 0 */
614 0x0008000000LL
, /* I-unit nop */
615 0x0008000000LL
, /* M-unit nop */
616 0x4000000000LL
, /* B-unit nop */
617 0x0008000000LL
, /* F-unit nop */
618 0x0000000000LL
, /* L-"unit" nop immediate */
619 0x0008000000LL
, /* X-unit nop */
622 /* Can't be `const' as it's passed to input routines (which have the
623 habit of setting temporary sentinels. */
624 static char special_section_name
[][20] =
626 {".bss"}, {".sbss"}, {".sdata"}, {".rodata"}, {".comment"},
627 {".IA_64.unwind"}, {".IA_64.unwind_info"},
628 {".init_array"}, {".fini_array"}
631 /* The best template for a particular sequence of up to three
633 #define N IA64_NUM_TYPES
634 static unsigned char best_template
[N
][N
][N
];
637 /* Resource dependencies currently in effect */
639 int depind
; /* dependency index */
640 const struct ia64_dependency
*dependency
; /* actual dependency */
641 unsigned specific
:1, /* is this a specific bit/regno? */
642 link_to_qp_branch
:1; /* will a branch on the same QP clear it?*/
643 int index
; /* specific regno/bit within dependency */
644 int note
; /* optional qualifying note (0 if none) */
648 int insn_srlz
; /* current insn serialization state */
649 int data_srlz
; /* current data serialization state */
650 int qp_regno
; /* qualifying predicate for this usage */
651 char *file
; /* what file marked this dependency */
652 unsigned int line
; /* what line marked this dependency */
653 struct mem_offset mem_offset
; /* optional memory offset hint */
654 enum { CMP_NONE
, CMP_OR
, CMP_AND
} cmp_type
; /* OR or AND compare? */
655 int path
; /* corresponding code entry index */
657 static int regdepslen
= 0;
658 static int regdepstotlen
= 0;
659 static const char *dv_mode
[] = { "RAW", "WAW", "WAR" };
660 static const char *dv_sem
[] = { "none", "implied", "impliedf",
661 "data", "instr", "specific", "stop", "other" };
662 static const char *dv_cmp_type
[] = { "none", "OR", "AND" };
664 /* Current state of PR mutexation */
665 static struct qpmutex
{
668 } *qp_mutexes
= NULL
; /* QP mutex bitmasks */
669 static int qp_mutexeslen
= 0;
670 static int qp_mutexestotlen
= 0;
671 static valueT qp_safe_across_calls
= 0;
673 /* Current state of PR implications */
674 static struct qp_imply
{
677 unsigned p2_branched
:1;
679 } *qp_implies
= NULL
;
680 static int qp_implieslen
= 0;
681 static int qp_impliestotlen
= 0;
683 /* Keep track of static GR values so that indirect register usage can
684 sometimes be tracked. */
695 (((1 << (8 * sizeof(gr_values
->path
) - 2)) - 1) << 1) + 1,
701 /* Remember the alignment frag. */
702 static fragS
*align_frag
;
704 /* These are the routines required to output the various types of
707 /* A slot_number is a frag address plus the slot index (0-2). We use the
708 frag address here so that if there is a section switch in the middle of
709 a function, then instructions emitted to a different section are not
710 counted. Since there may be more than one frag for a function, this
711 means we also need to keep track of which frag this address belongs to
712 so we can compute inter-frag distances. This also nicely solves the
713 problem with nops emitted for align directives, which can't easily be
714 counted, but can easily be derived from frag sizes. */
716 typedef struct unw_rec_list
{
718 unsigned long slot_number
;
720 struct unw_rec_list
*next
;
723 #define SLOT_NUM_NOT_SET (unsigned)-1
725 /* Linked list of saved prologue counts. A very poor
726 implementation of a map from label numbers to prologue counts. */
727 typedef struct label_prologue_count
729 struct label_prologue_count
*next
;
730 unsigned long label_number
;
731 unsigned int prologue_count
;
732 } label_prologue_count
;
734 typedef struct proc_pending
737 struct proc_pending
*next
;
742 /* Maintain a list of unwind entries for the current function. */
746 /* Any unwind entires that should be attached to the current slot
747 that an insn is being constructed for. */
748 unw_rec_list
*current_entry
;
750 /* These are used to create the unwind table entry for this function. */
751 proc_pending proc_pending
;
752 symbolS
*info
; /* pointer to unwind info */
753 symbolS
*personality_routine
;
755 subsegT saved_text_subseg
;
756 unsigned int force_unwind_entry
: 1; /* force generation of unwind entry? */
758 /* TRUE if processing unwind directives in a prologue region. */
759 unsigned int prologue
: 1;
760 unsigned int prologue_mask
: 4;
761 unsigned int prologue_gr
: 7;
762 unsigned int body
: 1;
763 unsigned int insn
: 1;
764 unsigned int prologue_count
; /* number of .prologues seen so far */
765 /* Prologue counts at previous .label_state directives. */
766 struct label_prologue_count
* saved_prologue_counts
;
768 /* List of split up .save-s. */
769 unw_p_record
*pending_saves
;
772 /* The input value is a negated offset from psp, and specifies an address
773 psp - offset. The encoded value is psp + 16 - (4 * offset). Thus we
774 must add 16 and divide by 4 to get the encoded value. */
776 #define ENCODED_PSP_OFFSET(OFFSET) (((OFFSET) + 16) / 4)
778 typedef void (*vbyte_func
) PARAMS ((int, char *, char *));
780 /* Forward declarations: */
781 static void set_section
PARAMS ((char *name
));
782 static unsigned int set_regstack
PARAMS ((unsigned int, unsigned int,
783 unsigned int, unsigned int));
784 static void dot_align (int);
785 static void dot_radix
PARAMS ((int));
786 static void dot_special_section
PARAMS ((int));
787 static void dot_proc
PARAMS ((int));
788 static void dot_fframe
PARAMS ((int));
789 static void dot_vframe
PARAMS ((int));
790 static void dot_vframesp
PARAMS ((int));
791 static void dot_save
PARAMS ((int));
792 static void dot_restore
PARAMS ((int));
793 static void dot_restorereg
PARAMS ((int));
794 static void dot_handlerdata
PARAMS ((int));
795 static void dot_unwentry
PARAMS ((int));
796 static void dot_altrp
PARAMS ((int));
797 static void dot_savemem
PARAMS ((int));
798 static void dot_saveg
PARAMS ((int));
799 static void dot_savef
PARAMS ((int));
800 static void dot_saveb
PARAMS ((int));
801 static void dot_savegf
PARAMS ((int));
802 static void dot_spill
PARAMS ((int));
803 static void dot_spillreg
PARAMS ((int));
804 static void dot_spillmem
PARAMS ((int));
805 static void dot_label_state
PARAMS ((int));
806 static void dot_copy_state
PARAMS ((int));
807 static void dot_unwabi
PARAMS ((int));
808 static void dot_personality
PARAMS ((int));
809 static void dot_body
PARAMS ((int));
810 static void dot_prologue
PARAMS ((int));
811 static void dot_endp
PARAMS ((int));
812 static void dot_template
PARAMS ((int));
813 static void dot_regstk
PARAMS ((int));
814 static void dot_rot
PARAMS ((int));
815 static void dot_byteorder
PARAMS ((int));
816 static void dot_psr
PARAMS ((int));
817 static void dot_alias
PARAMS ((int));
818 static void dot_ln
PARAMS ((int));
819 static void cross_section
PARAMS ((int ref
, void (*cons
) PARAMS((int)), int ua
));
820 static void dot_xdata
PARAMS ((int));
821 static void stmt_float_cons
PARAMS ((int));
822 static void stmt_cons_ua
PARAMS ((int));
823 static void dot_xfloat_cons
PARAMS ((int));
824 static void dot_xstringer
PARAMS ((int));
825 static void dot_xdata_ua
PARAMS ((int));
826 static void dot_xfloat_cons_ua
PARAMS ((int));
827 static void print_prmask
PARAMS ((valueT mask
));
828 static void dot_pred_rel
PARAMS ((int));
829 static void dot_reg_val
PARAMS ((int));
830 static void dot_serialize
PARAMS ((int));
831 static void dot_dv_mode
PARAMS ((int));
832 static void dot_entry
PARAMS ((int));
833 static void dot_mem_offset
PARAMS ((int));
834 static void add_unwind_entry
PARAMS((unw_rec_list
*, int));
835 static symbolS
*declare_register
PARAMS ((const char *name
, unsigned int regnum
));
836 static void declare_register_set
PARAMS ((const char *, unsigned int, unsigned int));
837 static unsigned int operand_width
PARAMS ((enum ia64_opnd
));
838 static enum operand_match_result operand_match
PARAMS ((const struct ia64_opcode
*idesc
,
841 static int parse_operand
PARAMS ((expressionS
*, int));
842 static struct ia64_opcode
* parse_operands
PARAMS ((struct ia64_opcode
*));
843 static void build_insn
PARAMS ((struct slot
*, bfd_vma
*));
844 static void emit_one_bundle
PARAMS ((void));
845 static void fix_insn
PARAMS ((fixS
*, const struct ia64_operand
*, valueT
));
846 static bfd_reloc_code_real_type ia64_gen_real_reloc_type
PARAMS ((struct symbol
*sym
,
847 bfd_reloc_code_real_type r_type
));
848 static void insn_group_break
PARAMS ((int, int, int));
849 static void mark_resource
PARAMS ((struct ia64_opcode
*, const struct ia64_dependency
*,
850 struct rsrc
*, int depind
, int path
));
851 static void add_qp_mutex
PARAMS((valueT mask
));
852 static void add_qp_imply
PARAMS((int p1
, int p2
));
853 static void clear_qp_branch_flag
PARAMS((valueT mask
));
854 static void clear_qp_mutex
PARAMS((valueT mask
));
855 static void clear_qp_implies
PARAMS((valueT p1_mask
, valueT p2_mask
));
856 static int has_suffix_p
PARAMS((const char *, const char *));
857 static void clear_register_values
PARAMS ((void));
858 static void print_dependency
PARAMS ((const char *action
, int depind
));
859 static void instruction_serialization
PARAMS ((void));
860 static void data_serialization
PARAMS ((void));
861 static void remove_marked_resource
PARAMS ((struct rsrc
*));
862 static int is_conditional_branch
PARAMS ((struct ia64_opcode
*));
863 static int is_taken_branch
PARAMS ((struct ia64_opcode
*));
864 static int is_interruption_or_rfi
PARAMS ((struct ia64_opcode
*));
865 static int depends_on
PARAMS ((int, struct ia64_opcode
*));
866 static int specify_resource
PARAMS ((const struct ia64_dependency
*,
867 struct ia64_opcode
*, int, struct rsrc
[], int, int));
868 static int check_dv
PARAMS((struct ia64_opcode
*idesc
));
869 static void check_dependencies
PARAMS((struct ia64_opcode
*));
870 static void mark_resources
PARAMS((struct ia64_opcode
*));
871 static void update_dependencies
PARAMS((struct ia64_opcode
*));
872 static void note_register_values
PARAMS((struct ia64_opcode
*));
873 static int qp_mutex
PARAMS ((int, int, int));
874 static int resources_match
PARAMS ((struct rsrc
*, struct ia64_opcode
*, int, int, int));
875 static void output_vbyte_mem
PARAMS ((int, char *, char *));
876 static void count_output
PARAMS ((int, char *, char *));
877 static void output_R1_format
PARAMS ((vbyte_func
, unw_record_type
, int));
878 static void output_R2_format
PARAMS ((vbyte_func
, int, int, unsigned long));
879 static void output_R3_format
PARAMS ((vbyte_func
, unw_record_type
, unsigned long));
880 static void output_P1_format
PARAMS ((vbyte_func
, int));
881 static void output_P2_format
PARAMS ((vbyte_func
, int, int));
882 static void output_P3_format
PARAMS ((vbyte_func
, unw_record_type
, int));
883 static void output_P4_format
PARAMS ((vbyte_func
, unsigned char *, unsigned long));
884 static void output_P5_format
PARAMS ((vbyte_func
, int, unsigned long));
885 static void output_P6_format
PARAMS ((vbyte_func
, unw_record_type
, int));
886 static void output_P7_format
PARAMS ((vbyte_func
, unw_record_type
, unsigned long, unsigned long));
887 static void output_P8_format
PARAMS ((vbyte_func
, unw_record_type
, unsigned long));
888 static void output_P9_format
PARAMS ((vbyte_func
, int, int));
889 static void output_P10_format
PARAMS ((vbyte_func
, int, int));
890 static void output_B1_format
PARAMS ((vbyte_func
, unw_record_type
, unsigned long));
891 static void output_B2_format
PARAMS ((vbyte_func
, unsigned long, unsigned long));
892 static void output_B3_format
PARAMS ((vbyte_func
, unsigned long, unsigned long));
893 static void output_B4_format
PARAMS ((vbyte_func
, unw_record_type
, unsigned long));
894 static char format_ab_reg
PARAMS ((int, int));
895 static void output_X1_format
PARAMS ((vbyte_func
, unw_record_type
, int, int, unsigned long,
897 static void output_X2_format
PARAMS ((vbyte_func
, int, int, int, int, int, unsigned long));
898 static void output_X3_format
PARAMS ((vbyte_func
, unw_record_type
, int, int, int, unsigned long,
900 static void output_X4_format
PARAMS ((vbyte_func
, int, int, int, int, int, int, unsigned long));
901 static unw_rec_list
*output_endp
PARAMS ((void));
902 static unw_rec_list
*output_prologue
PARAMS ((void));
903 static unw_rec_list
*output_prologue_gr
PARAMS ((unsigned int, unsigned int));
904 static unw_rec_list
*output_body
PARAMS ((void));
905 static unw_rec_list
*output_mem_stack_f
PARAMS ((unsigned int));
906 static unw_rec_list
*output_mem_stack_v
PARAMS ((void));
907 static unw_rec_list
*output_psp_gr
PARAMS ((unsigned int));
908 static unw_rec_list
*output_psp_sprel
PARAMS ((unsigned int));
909 static unw_rec_list
*output_rp_when
PARAMS ((void));
910 static unw_rec_list
*output_rp_gr
PARAMS ((unsigned int));
911 static unw_rec_list
*output_rp_br
PARAMS ((unsigned int));
912 static unw_rec_list
*output_rp_psprel
PARAMS ((unsigned int));
913 static unw_rec_list
*output_rp_sprel
PARAMS ((unsigned int));
914 static unw_rec_list
*output_pfs_when
PARAMS ((void));
915 static unw_rec_list
*output_pfs_gr
PARAMS ((unsigned int));
916 static unw_rec_list
*output_pfs_psprel
PARAMS ((unsigned int));
917 static unw_rec_list
*output_pfs_sprel
PARAMS ((unsigned int));
918 static unw_rec_list
*output_preds_when
PARAMS ((void));
919 static unw_rec_list
*output_preds_gr
PARAMS ((unsigned int));
920 static unw_rec_list
*output_preds_psprel
PARAMS ((unsigned int));
921 static unw_rec_list
*output_preds_sprel
PARAMS ((unsigned int));
922 static unw_rec_list
*output_fr_mem
PARAMS ((unsigned int));
923 static unw_rec_list
*output_frgr_mem
PARAMS ((unsigned int, unsigned int));
924 static unw_rec_list
*output_gr_gr
PARAMS ((unsigned int, unsigned int));
925 static unw_rec_list
*output_gr_mem
PARAMS ((unsigned int));
926 static unw_rec_list
*output_br_mem
PARAMS ((unsigned int));
927 static unw_rec_list
*output_br_gr
PARAMS ((unsigned int, unsigned int));
928 static unw_rec_list
*output_spill_base
PARAMS ((unsigned int));
929 static unw_rec_list
*output_unat_when
PARAMS ((void));
930 static unw_rec_list
*output_unat_gr
PARAMS ((unsigned int));
931 static unw_rec_list
*output_unat_psprel
PARAMS ((unsigned int));
932 static unw_rec_list
*output_unat_sprel
PARAMS ((unsigned int));
933 static unw_rec_list
*output_lc_when
PARAMS ((void));
934 static unw_rec_list
*output_lc_gr
PARAMS ((unsigned int));
935 static unw_rec_list
*output_lc_psprel
PARAMS ((unsigned int));
936 static unw_rec_list
*output_lc_sprel
PARAMS ((unsigned int));
937 static unw_rec_list
*output_fpsr_when
PARAMS ((void));
938 static unw_rec_list
*output_fpsr_gr
PARAMS ((unsigned int));
939 static unw_rec_list
*output_fpsr_psprel
PARAMS ((unsigned int));
940 static unw_rec_list
*output_fpsr_sprel
PARAMS ((unsigned int));
941 static unw_rec_list
*output_priunat_when_gr
PARAMS ((void));
942 static unw_rec_list
*output_priunat_when_mem
PARAMS ((void));
943 static unw_rec_list
*output_priunat_gr
PARAMS ((unsigned int));
944 static unw_rec_list
*output_priunat_psprel
PARAMS ((unsigned int));
945 static unw_rec_list
*output_priunat_sprel
PARAMS ((unsigned int));
946 static unw_rec_list
*output_bsp_when
PARAMS ((void));
947 static unw_rec_list
*output_bsp_gr
PARAMS ((unsigned int));
948 static unw_rec_list
*output_bsp_psprel
PARAMS ((unsigned int));
949 static unw_rec_list
*output_bsp_sprel
PARAMS ((unsigned int));
950 static unw_rec_list
*output_bspstore_when
PARAMS ((void));
951 static unw_rec_list
*output_bspstore_gr
PARAMS ((unsigned int));
952 static unw_rec_list
*output_bspstore_psprel
PARAMS ((unsigned int));
953 static unw_rec_list
*output_bspstore_sprel
PARAMS ((unsigned int));
954 static unw_rec_list
*output_rnat_when
PARAMS ((void));
955 static unw_rec_list
*output_rnat_gr
PARAMS ((unsigned int));
956 static unw_rec_list
*output_rnat_psprel
PARAMS ((unsigned int));
957 static unw_rec_list
*output_rnat_sprel
PARAMS ((unsigned int));
958 static unw_rec_list
*output_unwabi
PARAMS ((unsigned long, unsigned long));
959 static unw_rec_list
*output_epilogue
PARAMS ((unsigned long));
960 static unw_rec_list
*output_label_state
PARAMS ((unsigned long));
961 static unw_rec_list
*output_copy_state
PARAMS ((unsigned long));
962 static unw_rec_list
*output_spill_psprel
PARAMS ((unsigned int, unsigned int, unsigned int,
964 static unw_rec_list
*output_spill_sprel
PARAMS ((unsigned int, unsigned int, unsigned int,
966 static unw_rec_list
*output_spill_reg
PARAMS ((unsigned int, unsigned int, unsigned int,
967 unsigned int, unsigned int));
968 static void process_one_record
PARAMS ((unw_rec_list
*, vbyte_func
));
969 static void process_unw_records
PARAMS ((unw_rec_list
*, vbyte_func
));
970 static int calc_record_size
PARAMS ((unw_rec_list
*));
971 static void set_imask
PARAMS ((unw_rec_list
*, unsigned long, unsigned long, unsigned int));
972 static unsigned long slot_index
PARAMS ((unsigned long, fragS
*,
973 unsigned long, fragS
*,
975 static unw_rec_list
*optimize_unw_records
PARAMS ((unw_rec_list
*));
976 static void fixup_unw_records
PARAMS ((unw_rec_list
*, int));
977 static int parse_predicate_and_operand
PARAMS ((expressionS
*, unsigned *, const char *));
978 static void convert_expr_to_ab_reg
PARAMS ((const expressionS
*, unsigned int *, unsigned int *, const char *, int));
979 static void convert_expr_to_xy_reg
PARAMS ((const expressionS
*, unsigned int *, unsigned int *, const char *, int));
980 static unsigned int get_saved_prologue_count
PARAMS ((unsigned long));
981 static void save_prologue_count
PARAMS ((unsigned long, unsigned int));
982 static void free_saved_prologue_counts
PARAMS ((void));
984 /* Determine if application register REGNUM resides only in the integer
985 unit (as opposed to the memory unit). */
987 ar_is_only_in_integer_unit (int reg
)
990 return reg
>= 64 && reg
<= 111;
993 /* Determine if application register REGNUM resides only in the memory
994 unit (as opposed to the integer unit). */
996 ar_is_only_in_memory_unit (int reg
)
999 return reg
>= 0 && reg
<= 47;
1002 /* Switch to section NAME and create section if necessary. It's
1003 rather ugly that we have to manipulate input_line_pointer but I
1004 don't see any other way to accomplish the same thing without
1005 changing obj-elf.c (which may be the Right Thing, in the end). */
1010 char *saved_input_line_pointer
;
1012 saved_input_line_pointer
= input_line_pointer
;
1013 input_line_pointer
= name
;
1014 obj_elf_section (0);
1015 input_line_pointer
= saved_input_line_pointer
;
1018 /* Map 's' to SHF_IA_64_SHORT. */
1021 ia64_elf_section_letter (letter
, ptr_msg
)
1026 return SHF_IA_64_SHORT
;
1027 else if (letter
== 'o')
1028 return SHF_LINK_ORDER
;
1030 *ptr_msg
= _("Bad .section directive: want a,o,s,w,x,M,S,G,T in string");
1034 /* Map SHF_IA_64_SHORT to SEC_SMALL_DATA. */
1037 ia64_elf_section_flags (flags
, attr
, type
)
1039 int attr
, type ATTRIBUTE_UNUSED
;
1041 if (attr
& SHF_IA_64_SHORT
)
1042 flags
|= SEC_SMALL_DATA
;
1047 ia64_elf_section_type (str
, len
)
1051 #define STREQ(s) ((len == sizeof (s) - 1) && (strncmp (str, s, sizeof (s) - 1) == 0))
1053 if (STREQ (ELF_STRING_ia64_unwind_info
))
1054 return SHT_PROGBITS
;
1056 if (STREQ (ELF_STRING_ia64_unwind_info_once
))
1057 return SHT_PROGBITS
;
1059 if (STREQ (ELF_STRING_ia64_unwind
))
1060 return SHT_IA_64_UNWIND
;
1062 if (STREQ (ELF_STRING_ia64_unwind_once
))
1063 return SHT_IA_64_UNWIND
;
1065 if (STREQ ("unwind"))
1066 return SHT_IA_64_UNWIND
;
1073 set_regstack (ins
, locs
, outs
, rots
)
1074 unsigned int ins
, locs
, outs
, rots
;
1076 /* Size of frame. */
1079 sof
= ins
+ locs
+ outs
;
1082 as_bad ("Size of frame exceeds maximum of 96 registers");
1087 as_warn ("Size of rotating registers exceeds frame size");
1090 md
.in
.base
= REG_GR
+ 32;
1091 md
.loc
.base
= md
.in
.base
+ ins
;
1092 md
.out
.base
= md
.loc
.base
+ locs
;
1094 md
.in
.num_regs
= ins
;
1095 md
.loc
.num_regs
= locs
;
1096 md
.out
.num_regs
= outs
;
1097 md
.rot
.num_regs
= rots
;
1104 struct label_fix
*lfix
;
1106 subsegT saved_subseg
;
1110 if (!md
.last_text_seg
)
1113 saved_seg
= now_seg
;
1114 saved_subseg
= now_subseg
;
1116 subseg_set (md
.last_text_seg
, 0);
1118 while (md
.num_slots_in_use
> 0)
1119 emit_one_bundle (); /* force out queued instructions */
1121 /* In case there are labels following the last instruction, resolve
1124 for (lfix
= CURR_SLOT
.label_fixups
; lfix
; lfix
= lfix
->next
)
1126 symbol_set_value_now (lfix
->sym
);
1127 mark
|= lfix
->dw2_mark_labels
;
1131 dwarf2_where (&CURR_SLOT
.debug_line
);
1132 CURR_SLOT
.debug_line
.flags
|= DWARF2_FLAG_BASIC_BLOCK
;
1133 dwarf2_gen_line_info (frag_now_fix (), &CURR_SLOT
.debug_line
);
1135 CURR_SLOT
.label_fixups
= 0;
1137 for (lfix
= CURR_SLOT
.tag_fixups
; lfix
; lfix
= lfix
->next
)
1138 symbol_set_value_now (lfix
->sym
);
1139 CURR_SLOT
.tag_fixups
= 0;
1141 /* In case there are unwind directives following the last instruction,
1142 resolve those now. We only handle prologue, body, and endp directives
1143 here. Give an error for others. */
1144 for (ptr
= unwind
.current_entry
; ptr
; ptr
= ptr
->next
)
1146 switch (ptr
->r
.type
)
1152 ptr
->slot_number
= (unsigned long) frag_more (0);
1153 ptr
->slot_frag
= frag_now
;
1156 /* Allow any record which doesn't have a "t" field (i.e.,
1157 doesn't relate to a particular instruction). */
1173 as_bad (_("Unwind directive not followed by an instruction."));
1177 unwind
.current_entry
= NULL
;
1179 subseg_set (saved_seg
, saved_subseg
);
1181 if (md
.qp
.X_op
== O_register
)
1182 as_bad ("qualifying predicate not followed by instruction");
1186 ia64_do_align (int nbytes
)
1188 char *saved_input_line_pointer
= input_line_pointer
;
1190 input_line_pointer
= "";
1191 s_align_bytes (nbytes
);
1192 input_line_pointer
= saved_input_line_pointer
;
1196 ia64_cons_align (nbytes
)
1201 char *saved_input_line_pointer
= input_line_pointer
;
1202 input_line_pointer
= "";
1203 s_align_bytes (nbytes
);
1204 input_line_pointer
= saved_input_line_pointer
;
1208 /* Output COUNT bytes to a memory location. */
1209 static char *vbyte_mem_ptr
= NULL
;
1212 output_vbyte_mem (count
, ptr
, comment
)
1215 char *comment ATTRIBUTE_UNUSED
;
1218 if (vbyte_mem_ptr
== NULL
)
1223 for (x
= 0; x
< count
; x
++)
1224 *(vbyte_mem_ptr
++) = ptr
[x
];
1227 /* Count the number of bytes required for records. */
1228 static int vbyte_count
= 0;
1230 count_output (count
, ptr
, comment
)
1232 char *ptr ATTRIBUTE_UNUSED
;
1233 char *comment ATTRIBUTE_UNUSED
;
1235 vbyte_count
+= count
;
1239 output_R1_format (f
, rtype
, rlen
)
1241 unw_record_type rtype
;
1248 output_R3_format (f
, rtype
, rlen
);
1254 else if (rtype
!= prologue
)
1255 as_bad ("record type is not valid");
1257 byte
= UNW_R1
| (r
<< 5) | (rlen
& 0x1f);
1258 (*f
) (1, &byte
, NULL
);
1262 output_R2_format (f
, mask
, grsave
, rlen
)
1269 mask
= (mask
& 0x0f);
1270 grsave
= (grsave
& 0x7f);
1272 bytes
[0] = (UNW_R2
| (mask
>> 1));
1273 bytes
[1] = (((mask
& 0x01) << 7) | grsave
);
1274 count
+= output_leb128 (bytes
+ 2, rlen
, 0);
1275 (*f
) (count
, bytes
, NULL
);
1279 output_R3_format (f
, rtype
, rlen
)
1281 unw_record_type rtype
;
1288 output_R1_format (f
, rtype
, rlen
);
1294 else if (rtype
!= prologue
)
1295 as_bad ("record type is not valid");
1296 bytes
[0] = (UNW_R3
| r
);
1297 count
= output_leb128 (bytes
+ 1, rlen
, 0);
1298 (*f
) (count
+ 1, bytes
, NULL
);
1302 output_P1_format (f
, brmask
)
1307 byte
= UNW_P1
| (brmask
& 0x1f);
1308 (*f
) (1, &byte
, NULL
);
1312 output_P2_format (f
, brmask
, gr
)
1318 brmask
= (brmask
& 0x1f);
1319 bytes
[0] = UNW_P2
| (brmask
>> 1);
1320 bytes
[1] = (((brmask
& 1) << 7) | gr
);
1321 (*f
) (2, bytes
, NULL
);
1325 output_P3_format (f
, rtype
, reg
)
1327 unw_record_type rtype
;
1372 as_bad ("Invalid record type for P3 format.");
1374 bytes
[0] = (UNW_P3
| (r
>> 1));
1375 bytes
[1] = (((r
& 1) << 7) | reg
);
1376 (*f
) (2, bytes
, NULL
);
1380 output_P4_format (f
, imask
, imask_size
)
1382 unsigned char *imask
;
1383 unsigned long imask_size
;
1386 (*f
) (imask_size
, (char *) imask
, NULL
);
1390 output_P5_format (f
, grmask
, frmask
)
1393 unsigned long frmask
;
1396 grmask
= (grmask
& 0x0f);
1399 bytes
[1] = ((grmask
<< 4) | ((frmask
& 0x000f0000) >> 16));
1400 bytes
[2] = ((frmask
& 0x0000ff00) >> 8);
1401 bytes
[3] = (frmask
& 0x000000ff);
1402 (*f
) (4, bytes
, NULL
);
1406 output_P6_format (f
, rtype
, rmask
)
1408 unw_record_type rtype
;
1414 if (rtype
== gr_mem
)
1416 else if (rtype
!= fr_mem
)
1417 as_bad ("Invalid record type for format P6");
1418 byte
= (UNW_P6
| (r
<< 4) | (rmask
& 0x0f));
1419 (*f
) (1, &byte
, NULL
);
1423 output_P7_format (f
, rtype
, w1
, w2
)
1425 unw_record_type rtype
;
1432 count
+= output_leb128 (bytes
+ 1, w1
, 0);
1437 count
+= output_leb128 (bytes
+ count
, w2
>> 4, 0);
1487 bytes
[0] = (UNW_P7
| r
);
1488 (*f
) (count
, bytes
, NULL
);
1492 output_P8_format (f
, rtype
, t
)
1494 unw_record_type rtype
;
1533 case bspstore_psprel
:
1536 case bspstore_sprel
:
1548 case priunat_when_gr
:
1551 case priunat_psprel
:
1557 case priunat_when_mem
:
1564 count
+= output_leb128 (bytes
+ 2, t
, 0);
1565 (*f
) (count
, bytes
, NULL
);
1569 output_P9_format (f
, grmask
, gr
)
1576 bytes
[1] = (grmask
& 0x0f);
1577 bytes
[2] = (gr
& 0x7f);
1578 (*f
) (3, bytes
, NULL
);
1582 output_P10_format (f
, abi
, context
)
1589 bytes
[1] = (abi
& 0xff);
1590 bytes
[2] = (context
& 0xff);
1591 (*f
) (3, bytes
, NULL
);
1595 output_B1_format (f
, rtype
, label
)
1597 unw_record_type rtype
;
1598 unsigned long label
;
1604 output_B4_format (f
, rtype
, label
);
1607 if (rtype
== copy_state
)
1609 else if (rtype
!= label_state
)
1610 as_bad ("Invalid record type for format B1");
1612 byte
= (UNW_B1
| (r
<< 5) | (label
& 0x1f));
1613 (*f
) (1, &byte
, NULL
);
1617 output_B2_format (f
, ecount
, t
)
1619 unsigned long ecount
;
1626 output_B3_format (f
, ecount
, t
);
1629 bytes
[0] = (UNW_B2
| (ecount
& 0x1f));
1630 count
+= output_leb128 (bytes
+ 1, t
, 0);
1631 (*f
) (count
, bytes
, NULL
);
1635 output_B3_format (f
, ecount
, t
)
1637 unsigned long ecount
;
1644 output_B2_format (f
, ecount
, t
);
1648 count
+= output_leb128 (bytes
+ 1, t
, 0);
1649 count
+= output_leb128 (bytes
+ count
, ecount
, 0);
1650 (*f
) (count
, bytes
, NULL
);
1654 output_B4_format (f
, rtype
, label
)
1656 unw_record_type rtype
;
1657 unsigned long label
;
1664 output_B1_format (f
, rtype
, label
);
1668 if (rtype
== copy_state
)
1670 else if (rtype
!= label_state
)
1671 as_bad ("Invalid record type for format B1");
1673 bytes
[0] = (UNW_B4
| (r
<< 3));
1674 count
+= output_leb128 (bytes
+ 1, label
, 0);
1675 (*f
) (count
, bytes
, NULL
);
1679 format_ab_reg (ab
, reg
)
1686 ret
= (ab
<< 5) | reg
;
1691 output_X1_format (f
, rtype
, ab
, reg
, t
, w1
)
1693 unw_record_type rtype
;
1703 if (rtype
== spill_sprel
)
1705 else if (rtype
!= spill_psprel
)
1706 as_bad ("Invalid record type for format X1");
1707 bytes
[1] = ((r
<< 7) | format_ab_reg (ab
, reg
));
1708 count
+= output_leb128 (bytes
+ 2, t
, 0);
1709 count
+= output_leb128 (bytes
+ count
, w1
, 0);
1710 (*f
) (count
, bytes
, NULL
);
1714 output_X2_format (f
, ab
, reg
, x
, y
, treg
, t
)
1723 bytes
[1] = (((x
& 1) << 7) | format_ab_reg (ab
, reg
));
1724 bytes
[2] = (((y
& 1) << 7) | (treg
& 0x7f));
1725 count
+= output_leb128 (bytes
+ 3, t
, 0);
1726 (*f
) (count
, bytes
, NULL
);
1730 output_X3_format (f
, rtype
, qp
, ab
, reg
, t
, w1
)
1732 unw_record_type rtype
;
1743 if (rtype
== spill_sprel_p
)
1745 else if (rtype
!= spill_psprel_p
)
1746 as_bad ("Invalid record type for format X3");
1747 bytes
[1] = ((r
<< 7) | (qp
& 0x3f));
1748 bytes
[2] = format_ab_reg (ab
, reg
);
1749 count
+= output_leb128 (bytes
+ 3, t
, 0);
1750 count
+= output_leb128 (bytes
+ count
, w1
, 0);
1751 (*f
) (count
, bytes
, NULL
);
1755 output_X4_format (f
, qp
, ab
, reg
, x
, y
, treg
, t
)
1765 bytes
[1] = (qp
& 0x3f);
1766 bytes
[2] = (((x
& 1) << 7) | format_ab_reg (ab
, reg
));
1767 bytes
[3] = (((y
& 1) << 7) | (treg
& 0x7f));
1768 count
+= output_leb128 (bytes
+ 4, t
, 0);
1769 (*f
) (count
, bytes
, NULL
);
1772 /* This function checks whether there are any outstanding .save-s and
1773 discards them if so. */
1776 check_pending_save (void)
1778 if (unwind
.pending_saves
)
1780 unw_rec_list
*cur
, *prev
;
1782 as_warn ("Previous .save incomplete");
1783 for (cur
= unwind
.list
, prev
= NULL
; cur
; )
1784 if (&cur
->r
.record
.p
== unwind
.pending_saves
)
1787 prev
->next
= cur
->next
;
1789 unwind
.list
= cur
->next
;
1790 if (cur
== unwind
.tail
)
1792 if (cur
== unwind
.current_entry
)
1793 unwind
.current_entry
= cur
->next
;
1794 /* Don't free the first discarded record, it's being used as
1795 terminator for (currently) br_gr and gr_gr processing, and
1796 also prevents leaving a dangling pointer to it in its
1798 cur
->r
.record
.p
.grmask
= 0;
1799 cur
->r
.record
.p
.brmask
= 0;
1800 cur
->r
.record
.p
.frmask
= 0;
1801 prev
= cur
->r
.record
.p
.next
;
1802 cur
->r
.record
.p
.next
= NULL
;
1814 cur
= cur
->r
.record
.p
.next
;
1817 unwind
.pending_saves
= NULL
;
1821 /* This function allocates a record list structure, and initializes fields. */
1823 static unw_rec_list
*
1824 alloc_record (unw_record_type t
)
1827 ptr
= xmalloc (sizeof (*ptr
));
1828 memset (ptr
, 0, sizeof (*ptr
));
1829 ptr
->slot_number
= SLOT_NUM_NOT_SET
;
1834 /* Dummy unwind record used for calculating the length of the last prologue or
1837 static unw_rec_list
*
1840 unw_rec_list
*ptr
= alloc_record (endp
);
1844 static unw_rec_list
*
1847 unw_rec_list
*ptr
= alloc_record (prologue
);
1848 memset (&ptr
->r
.record
.r
.mask
, 0, sizeof (ptr
->r
.record
.r
.mask
));
1852 static unw_rec_list
*
1853 output_prologue_gr (saved_mask
, reg
)
1854 unsigned int saved_mask
;
1857 unw_rec_list
*ptr
= alloc_record (prologue_gr
);
1858 memset (&ptr
->r
.record
.r
.mask
, 0, sizeof (ptr
->r
.record
.r
.mask
));
1859 ptr
->r
.record
.r
.grmask
= saved_mask
;
1860 ptr
->r
.record
.r
.grsave
= reg
;
1864 static unw_rec_list
*
1867 unw_rec_list
*ptr
= alloc_record (body
);
1871 static unw_rec_list
*
1872 output_mem_stack_f (size
)
1875 unw_rec_list
*ptr
= alloc_record (mem_stack_f
);
1876 ptr
->r
.record
.p
.size
= size
;
1880 static unw_rec_list
*
1881 output_mem_stack_v ()
1883 unw_rec_list
*ptr
= alloc_record (mem_stack_v
);
1887 static unw_rec_list
*
1891 unw_rec_list
*ptr
= alloc_record (psp_gr
);
1892 ptr
->r
.record
.p
.r
.gr
= gr
;
1896 static unw_rec_list
*
1897 output_psp_sprel (offset
)
1898 unsigned int offset
;
1900 unw_rec_list
*ptr
= alloc_record (psp_sprel
);
1901 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
1905 static unw_rec_list
*
1908 unw_rec_list
*ptr
= alloc_record (rp_when
);
1912 static unw_rec_list
*
1916 unw_rec_list
*ptr
= alloc_record (rp_gr
);
1917 ptr
->r
.record
.p
.r
.gr
= gr
;
1921 static unw_rec_list
*
1925 unw_rec_list
*ptr
= alloc_record (rp_br
);
1926 ptr
->r
.record
.p
.r
.br
= br
;
1930 static unw_rec_list
*
1931 output_rp_psprel (offset
)
1932 unsigned int offset
;
1934 unw_rec_list
*ptr
= alloc_record (rp_psprel
);
1935 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
1939 static unw_rec_list
*
1940 output_rp_sprel (offset
)
1941 unsigned int offset
;
1943 unw_rec_list
*ptr
= alloc_record (rp_sprel
);
1944 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
1948 static unw_rec_list
*
1951 unw_rec_list
*ptr
= alloc_record (pfs_when
);
1955 static unw_rec_list
*
1959 unw_rec_list
*ptr
= alloc_record (pfs_gr
);
1960 ptr
->r
.record
.p
.r
.gr
= gr
;
1964 static unw_rec_list
*
1965 output_pfs_psprel (offset
)
1966 unsigned int offset
;
1968 unw_rec_list
*ptr
= alloc_record (pfs_psprel
);
1969 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
1973 static unw_rec_list
*
1974 output_pfs_sprel (offset
)
1975 unsigned int offset
;
1977 unw_rec_list
*ptr
= alloc_record (pfs_sprel
);
1978 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
1982 static unw_rec_list
*
1983 output_preds_when ()
1985 unw_rec_list
*ptr
= alloc_record (preds_when
);
1989 static unw_rec_list
*
1990 output_preds_gr (gr
)
1993 unw_rec_list
*ptr
= alloc_record (preds_gr
);
1994 ptr
->r
.record
.p
.r
.gr
= gr
;
1998 static unw_rec_list
*
1999 output_preds_psprel (offset
)
2000 unsigned int offset
;
2002 unw_rec_list
*ptr
= alloc_record (preds_psprel
);
2003 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2007 static unw_rec_list
*
2008 output_preds_sprel (offset
)
2009 unsigned int offset
;
2011 unw_rec_list
*ptr
= alloc_record (preds_sprel
);
2012 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
2016 static unw_rec_list
*
2017 output_fr_mem (mask
)
2020 unw_rec_list
*ptr
= alloc_record (fr_mem
);
2021 unw_rec_list
*cur
= ptr
;
2023 ptr
->r
.record
.p
.frmask
= mask
;
2024 unwind
.pending_saves
= &ptr
->r
.record
.p
;
2027 unw_rec_list
*prev
= cur
;
2029 /* Clear least significant set bit. */
2030 mask
&= ~(mask
& (~mask
+ 1));
2033 cur
= alloc_record (fr_mem
);
2034 cur
->r
.record
.p
.frmask
= mask
;
2035 /* Retain only least significant bit. */
2036 prev
->r
.record
.p
.frmask
^= mask
;
2037 prev
->r
.record
.p
.next
= cur
;
2041 static unw_rec_list
*
2042 output_frgr_mem (gr_mask
, fr_mask
)
2043 unsigned int gr_mask
;
2044 unsigned int fr_mask
;
2046 unw_rec_list
*ptr
= alloc_record (frgr_mem
);
2047 unw_rec_list
*cur
= ptr
;
2049 unwind
.pending_saves
= &cur
->r
.record
.p
;
2050 cur
->r
.record
.p
.frmask
= fr_mask
;
2053 unw_rec_list
*prev
= cur
;
2055 /* Clear least significant set bit. */
2056 fr_mask
&= ~(fr_mask
& (~fr_mask
+ 1));
2057 if (!gr_mask
&& !fr_mask
)
2059 cur
= alloc_record (frgr_mem
);
2060 cur
->r
.record
.p
.frmask
= fr_mask
;
2061 /* Retain only least significant bit. */
2062 prev
->r
.record
.p
.frmask
^= fr_mask
;
2063 prev
->r
.record
.p
.next
= cur
;
2065 cur
->r
.record
.p
.grmask
= gr_mask
;
2068 unw_rec_list
*prev
= cur
;
2070 /* Clear least significant set bit. */
2071 gr_mask
&= ~(gr_mask
& (~gr_mask
+ 1));
2074 cur
= alloc_record (frgr_mem
);
2075 cur
->r
.record
.p
.grmask
= gr_mask
;
2076 /* Retain only least significant bit. */
2077 prev
->r
.record
.p
.grmask
^= gr_mask
;
2078 prev
->r
.record
.p
.next
= cur
;
2082 static unw_rec_list
*
2083 output_gr_gr (mask
, reg
)
2087 unw_rec_list
*ptr
= alloc_record (gr_gr
);
2088 unw_rec_list
*cur
= ptr
;
2090 ptr
->r
.record
.p
.grmask
= mask
;
2091 ptr
->r
.record
.p
.r
.gr
= reg
;
2092 unwind
.pending_saves
= &ptr
->r
.record
.p
;
2095 unw_rec_list
*prev
= cur
;
2097 /* Clear least significant set bit. */
2098 mask
&= ~(mask
& (~mask
+ 1));
2101 cur
= alloc_record (gr_gr
);
2102 cur
->r
.record
.p
.grmask
= mask
;
2103 /* Indicate this record shouldn't be output. */
2104 cur
->r
.record
.p
.r
.gr
= REG_NUM
;
2105 /* Retain only least significant bit. */
2106 prev
->r
.record
.p
.grmask
^= mask
;
2107 prev
->r
.record
.p
.next
= cur
;
2111 static unw_rec_list
*
2112 output_gr_mem (mask
)
2115 unw_rec_list
*ptr
= alloc_record (gr_mem
);
2116 unw_rec_list
*cur
= ptr
;
2118 ptr
->r
.record
.p
.grmask
= mask
;
2119 unwind
.pending_saves
= &ptr
->r
.record
.p
;
2122 unw_rec_list
*prev
= cur
;
2124 /* Clear least significant set bit. */
2125 mask
&= ~(mask
& (~mask
+ 1));
2128 cur
= alloc_record (gr_mem
);
2129 cur
->r
.record
.p
.grmask
= mask
;
2130 /* Retain only least significant bit. */
2131 prev
->r
.record
.p
.grmask
^= mask
;
2132 prev
->r
.record
.p
.next
= cur
;
2136 static unw_rec_list
*
2137 output_br_mem (unsigned int mask
)
2139 unw_rec_list
*ptr
= alloc_record (br_mem
);
2140 unw_rec_list
*cur
= ptr
;
2142 ptr
->r
.record
.p
.brmask
= mask
;
2143 unwind
.pending_saves
= &ptr
->r
.record
.p
;
2146 unw_rec_list
*prev
= cur
;
2148 /* Clear least significant set bit. */
2149 mask
&= ~(mask
& (~mask
+ 1));
2152 cur
= alloc_record (br_mem
);
2153 cur
->r
.record
.p
.brmask
= mask
;
2154 /* Retain only least significant bit. */
2155 prev
->r
.record
.p
.brmask
^= mask
;
2156 prev
->r
.record
.p
.next
= cur
;
2160 static unw_rec_list
*
2161 output_br_gr (mask
, reg
)
2165 unw_rec_list
*ptr
= alloc_record (br_gr
);
2166 unw_rec_list
*cur
= ptr
;
2168 ptr
->r
.record
.p
.brmask
= mask
;
2169 ptr
->r
.record
.p
.r
.gr
= reg
;
2170 unwind
.pending_saves
= &ptr
->r
.record
.p
;
2173 unw_rec_list
*prev
= cur
;
2175 /* Clear least significant set bit. */
2176 mask
&= ~(mask
& (~mask
+ 1));
2179 cur
= alloc_record (br_gr
);
2180 cur
->r
.record
.p
.brmask
= mask
;
2181 /* Indicate this record shouldn't be output. */
2182 cur
->r
.record
.p
.r
.gr
= REG_NUM
;
2183 /* Retain only least significant bit. */
2184 prev
->r
.record
.p
.brmask
^= mask
;
2185 prev
->r
.record
.p
.next
= cur
;
2189 static unw_rec_list
*
2190 output_spill_base (offset
)
2191 unsigned int offset
;
2193 unw_rec_list
*ptr
= alloc_record (spill_base
);
2194 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2198 static unw_rec_list
*
2201 unw_rec_list
*ptr
= alloc_record (unat_when
);
2205 static unw_rec_list
*
2209 unw_rec_list
*ptr
= alloc_record (unat_gr
);
2210 ptr
->r
.record
.p
.r
.gr
= gr
;
2214 static unw_rec_list
*
2215 output_unat_psprel (offset
)
2216 unsigned int offset
;
2218 unw_rec_list
*ptr
= alloc_record (unat_psprel
);
2219 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2223 static unw_rec_list
*
2224 output_unat_sprel (offset
)
2225 unsigned int offset
;
2227 unw_rec_list
*ptr
= alloc_record (unat_sprel
);
2228 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
2232 static unw_rec_list
*
2235 unw_rec_list
*ptr
= alloc_record (lc_when
);
2239 static unw_rec_list
*
2243 unw_rec_list
*ptr
= alloc_record (lc_gr
);
2244 ptr
->r
.record
.p
.r
.gr
= gr
;
2248 static unw_rec_list
*
2249 output_lc_psprel (offset
)
2250 unsigned int offset
;
2252 unw_rec_list
*ptr
= alloc_record (lc_psprel
);
2253 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2257 static unw_rec_list
*
2258 output_lc_sprel (offset
)
2259 unsigned int offset
;
2261 unw_rec_list
*ptr
= alloc_record (lc_sprel
);
2262 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
2266 static unw_rec_list
*
2269 unw_rec_list
*ptr
= alloc_record (fpsr_when
);
2273 static unw_rec_list
*
2277 unw_rec_list
*ptr
= alloc_record (fpsr_gr
);
2278 ptr
->r
.record
.p
.r
.gr
= gr
;
2282 static unw_rec_list
*
2283 output_fpsr_psprel (offset
)
2284 unsigned int offset
;
2286 unw_rec_list
*ptr
= alloc_record (fpsr_psprel
);
2287 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2291 static unw_rec_list
*
2292 output_fpsr_sprel (offset
)
2293 unsigned int offset
;
2295 unw_rec_list
*ptr
= alloc_record (fpsr_sprel
);
2296 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
2300 static unw_rec_list
*
2301 output_priunat_when_gr ()
2303 unw_rec_list
*ptr
= alloc_record (priunat_when_gr
);
2307 static unw_rec_list
*
2308 output_priunat_when_mem ()
2310 unw_rec_list
*ptr
= alloc_record (priunat_when_mem
);
2314 static unw_rec_list
*
2315 output_priunat_gr (gr
)
2318 unw_rec_list
*ptr
= alloc_record (priunat_gr
);
2319 ptr
->r
.record
.p
.r
.gr
= gr
;
2323 static unw_rec_list
*
2324 output_priunat_psprel (offset
)
2325 unsigned int offset
;
2327 unw_rec_list
*ptr
= alloc_record (priunat_psprel
);
2328 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2332 static unw_rec_list
*
2333 output_priunat_sprel (offset
)
2334 unsigned int offset
;
2336 unw_rec_list
*ptr
= alloc_record (priunat_sprel
);
2337 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
2341 static unw_rec_list
*
2344 unw_rec_list
*ptr
= alloc_record (bsp_when
);
2348 static unw_rec_list
*
2352 unw_rec_list
*ptr
= alloc_record (bsp_gr
);
2353 ptr
->r
.record
.p
.r
.gr
= gr
;
2357 static unw_rec_list
*
2358 output_bsp_psprel (offset
)
2359 unsigned int offset
;
2361 unw_rec_list
*ptr
= alloc_record (bsp_psprel
);
2362 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2366 static unw_rec_list
*
2367 output_bsp_sprel (offset
)
2368 unsigned int offset
;
2370 unw_rec_list
*ptr
= alloc_record (bsp_sprel
);
2371 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
2375 static unw_rec_list
*
2376 output_bspstore_when ()
2378 unw_rec_list
*ptr
= alloc_record (bspstore_when
);
2382 static unw_rec_list
*
2383 output_bspstore_gr (gr
)
2386 unw_rec_list
*ptr
= alloc_record (bspstore_gr
);
2387 ptr
->r
.record
.p
.r
.gr
= gr
;
2391 static unw_rec_list
*
2392 output_bspstore_psprel (offset
)
2393 unsigned int offset
;
2395 unw_rec_list
*ptr
= alloc_record (bspstore_psprel
);
2396 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2400 static unw_rec_list
*
2401 output_bspstore_sprel (offset
)
2402 unsigned int offset
;
2404 unw_rec_list
*ptr
= alloc_record (bspstore_sprel
);
2405 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
2409 static unw_rec_list
*
2412 unw_rec_list
*ptr
= alloc_record (rnat_when
);
2416 static unw_rec_list
*
2420 unw_rec_list
*ptr
= alloc_record (rnat_gr
);
2421 ptr
->r
.record
.p
.r
.gr
= gr
;
2425 static unw_rec_list
*
2426 output_rnat_psprel (offset
)
2427 unsigned int offset
;
2429 unw_rec_list
*ptr
= alloc_record (rnat_psprel
);
2430 ptr
->r
.record
.p
.off
.psp
= ENCODED_PSP_OFFSET (offset
);
2434 static unw_rec_list
*
2435 output_rnat_sprel (offset
)
2436 unsigned int offset
;
2438 unw_rec_list
*ptr
= alloc_record (rnat_sprel
);
2439 ptr
->r
.record
.p
.off
.sp
= offset
/ 4;
2443 static unw_rec_list
*
2444 output_unwabi (abi
, context
)
2446 unsigned long context
;
2448 unw_rec_list
*ptr
= alloc_record (unwabi
);
2449 ptr
->r
.record
.p
.abi
= abi
;
2450 ptr
->r
.record
.p
.context
= context
;
2454 static unw_rec_list
*
2455 output_epilogue (unsigned long ecount
)
2457 unw_rec_list
*ptr
= alloc_record (epilogue
);
2458 ptr
->r
.record
.b
.ecount
= ecount
;
2462 static unw_rec_list
*
2463 output_label_state (unsigned long label
)
2465 unw_rec_list
*ptr
= alloc_record (label_state
);
2466 ptr
->r
.record
.b
.label
= label
;
2470 static unw_rec_list
*
2471 output_copy_state (unsigned long label
)
2473 unw_rec_list
*ptr
= alloc_record (copy_state
);
2474 ptr
->r
.record
.b
.label
= label
;
2478 static unw_rec_list
*
2479 output_spill_psprel (ab
, reg
, offset
, predicate
)
2482 unsigned int offset
;
2483 unsigned int predicate
;
2485 unw_rec_list
*ptr
= alloc_record (predicate
? spill_psprel_p
: spill_psprel
);
2486 ptr
->r
.record
.x
.ab
= ab
;
2487 ptr
->r
.record
.x
.reg
= reg
;
2488 ptr
->r
.record
.x
.where
.pspoff
= ENCODED_PSP_OFFSET (offset
);
2489 ptr
->r
.record
.x
.qp
= predicate
;
2493 static unw_rec_list
*
2494 output_spill_sprel (ab
, reg
, offset
, predicate
)
2497 unsigned int offset
;
2498 unsigned int predicate
;
2500 unw_rec_list
*ptr
= alloc_record (predicate
? spill_sprel_p
: spill_sprel
);
2501 ptr
->r
.record
.x
.ab
= ab
;
2502 ptr
->r
.record
.x
.reg
= reg
;
2503 ptr
->r
.record
.x
.where
.spoff
= offset
/ 4;
2504 ptr
->r
.record
.x
.qp
= predicate
;
2508 static unw_rec_list
*
2509 output_spill_reg (ab
, reg
, targ_reg
, xy
, predicate
)
2512 unsigned int targ_reg
;
2514 unsigned int predicate
;
2516 unw_rec_list
*ptr
= alloc_record (predicate
? spill_reg_p
: spill_reg
);
2517 ptr
->r
.record
.x
.ab
= ab
;
2518 ptr
->r
.record
.x
.reg
= reg
;
2519 ptr
->r
.record
.x
.where
.reg
= targ_reg
;
2520 ptr
->r
.record
.x
.xy
= xy
;
2521 ptr
->r
.record
.x
.qp
= predicate
;
2525 /* Given a unw_rec_list process the correct format with the
2526 specified function. */
2529 process_one_record (ptr
, f
)
2533 unsigned int fr_mask
, gr_mask
;
2535 switch (ptr
->r
.type
)
2537 /* This is a dummy record that takes up no space in the output. */
2545 /* These are taken care of by prologue/prologue_gr. */
2550 if (ptr
->r
.type
== prologue_gr
)
2551 output_R2_format (f
, ptr
->r
.record
.r
.grmask
,
2552 ptr
->r
.record
.r
.grsave
, ptr
->r
.record
.r
.rlen
);
2554 output_R1_format (f
, ptr
->r
.type
, ptr
->r
.record
.r
.rlen
);
2556 /* Output descriptor(s) for union of register spills (if any). */
2557 gr_mask
= ptr
->r
.record
.r
.mask
.gr_mem
;
2558 fr_mask
= ptr
->r
.record
.r
.mask
.fr_mem
;
2561 if ((fr_mask
& ~0xfUL
) == 0)
2562 output_P6_format (f
, fr_mem
, fr_mask
);
2565 output_P5_format (f
, gr_mask
, fr_mask
);
2570 output_P6_format (f
, gr_mem
, gr_mask
);
2571 if (ptr
->r
.record
.r
.mask
.br_mem
)
2572 output_P1_format (f
, ptr
->r
.record
.r
.mask
.br_mem
);
2574 /* output imask descriptor if necessary: */
2575 if (ptr
->r
.record
.r
.mask
.i
)
2576 output_P4_format (f
, ptr
->r
.record
.r
.mask
.i
,
2577 ptr
->r
.record
.r
.imask_size
);
2581 output_R1_format (f
, ptr
->r
.type
, ptr
->r
.record
.r
.rlen
);
2585 output_P7_format (f
, ptr
->r
.type
, ptr
->r
.record
.p
.t
,
2586 ptr
->r
.record
.p
.size
);
2599 output_P3_format (f
, ptr
->r
.type
, ptr
->r
.record
.p
.r
.gr
);
2602 output_P3_format (f
, rp_br
, ptr
->r
.record
.p
.r
.br
);
2605 output_P7_format (f
, psp_sprel
, ptr
->r
.record
.p
.off
.sp
, 0);
2613 output_P7_format (f
, ptr
->r
.type
, ptr
->r
.record
.p
.t
, 0);
2622 output_P7_format (f
, ptr
->r
.type
, ptr
->r
.record
.p
.off
.psp
, 0);
2632 case bspstore_sprel
:
2634 output_P8_format (f
, ptr
->r
.type
, ptr
->r
.record
.p
.off
.sp
);
2637 if (ptr
->r
.record
.p
.r
.gr
< REG_NUM
)
2639 const unw_rec_list
*cur
= ptr
;
2641 gr_mask
= cur
->r
.record
.p
.grmask
;
2642 while ((cur
= cur
->r
.record
.p
.next
) != NULL
)
2643 gr_mask
|= cur
->r
.record
.p
.grmask
;
2644 output_P9_format (f
, gr_mask
, ptr
->r
.record
.p
.r
.gr
);
2648 if (ptr
->r
.record
.p
.r
.gr
< REG_NUM
)
2650 const unw_rec_list
*cur
= ptr
;
2652 gr_mask
= cur
->r
.record
.p
.brmask
;
2653 while ((cur
= cur
->r
.record
.p
.next
) != NULL
)
2654 gr_mask
|= cur
->r
.record
.p
.brmask
;
2655 output_P2_format (f
, gr_mask
, ptr
->r
.record
.p
.r
.gr
);
2659 as_bad ("spill_mask record unimplemented.");
2661 case priunat_when_gr
:
2662 case priunat_when_mem
:
2666 output_P8_format (f
, ptr
->r
.type
, ptr
->r
.record
.p
.t
);
2668 case priunat_psprel
:
2670 case bspstore_psprel
:
2672 output_P8_format (f
, ptr
->r
.type
, ptr
->r
.record
.p
.off
.psp
);
2675 output_P10_format (f
, ptr
->r
.record
.p
.abi
, ptr
->r
.record
.p
.context
);
2678 output_B3_format (f
, ptr
->r
.record
.b
.ecount
, ptr
->r
.record
.b
.t
);
2682 output_B4_format (f
, ptr
->r
.type
, ptr
->r
.record
.b
.label
);
2685 output_X1_format (f
, ptr
->r
.type
, ptr
->r
.record
.x
.ab
,
2686 ptr
->r
.record
.x
.reg
, ptr
->r
.record
.x
.t
,
2687 ptr
->r
.record
.x
.where
.pspoff
);
2690 output_X1_format (f
, ptr
->r
.type
, ptr
->r
.record
.x
.ab
,
2691 ptr
->r
.record
.x
.reg
, ptr
->r
.record
.x
.t
,
2692 ptr
->r
.record
.x
.where
.spoff
);
2695 output_X2_format (f
, ptr
->r
.record
.x
.ab
, ptr
->r
.record
.x
.reg
,
2696 ptr
->r
.record
.x
.xy
>> 1, ptr
->r
.record
.x
.xy
,
2697 ptr
->r
.record
.x
.where
.reg
, ptr
->r
.record
.x
.t
);
2699 case spill_psprel_p
:
2700 output_X3_format (f
, ptr
->r
.type
, ptr
->r
.record
.x
.qp
,
2701 ptr
->r
.record
.x
.ab
, ptr
->r
.record
.x
.reg
,
2702 ptr
->r
.record
.x
.t
, ptr
->r
.record
.x
.where
.pspoff
);
2705 output_X3_format (f
, ptr
->r
.type
, ptr
->r
.record
.x
.qp
,
2706 ptr
->r
.record
.x
.ab
, ptr
->r
.record
.x
.reg
,
2707 ptr
->r
.record
.x
.t
, ptr
->r
.record
.x
.where
.spoff
);
2710 output_X4_format (f
, ptr
->r
.record
.x
.qp
, ptr
->r
.record
.x
.ab
,
2711 ptr
->r
.record
.x
.reg
, ptr
->r
.record
.x
.xy
>> 1,
2712 ptr
->r
.record
.x
.xy
, ptr
->r
.record
.x
.where
.reg
,
2716 as_bad ("record_type_not_valid");
2721 /* Given a unw_rec_list list, process all the records with
2722 the specified function. */
2724 process_unw_records (list
, f
)
2729 for (ptr
= list
; ptr
; ptr
= ptr
->next
)
2730 process_one_record (ptr
, f
);
2733 /* Determine the size of a record list in bytes. */
2735 calc_record_size (list
)
2739 process_unw_records (list
, count_output
);
2743 /* Return the number of bits set in the input value.
2744 Perhaps this has a better place... */
2745 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
2746 # define popcount __builtin_popcount
2749 popcount (unsigned x
)
2751 static const unsigned char popcnt
[16] =
2759 if (x
< NELEMS (popcnt
))
2761 return popcnt
[x
% NELEMS (popcnt
)] + popcount (x
/ NELEMS (popcnt
));
2765 /* Update IMASK bitmask to reflect the fact that one or more registers
2766 of type TYPE are saved starting at instruction with index T. If N
2767 bits are set in REGMASK, it is assumed that instructions T through
2768 T+N-1 save these registers.
2772 1: instruction saves next fp reg
2773 2: instruction saves next general reg
2774 3: instruction saves next branch reg */
2776 set_imask (region
, regmask
, t
, type
)
2777 unw_rec_list
*region
;
2778 unsigned long regmask
;
2782 unsigned char *imask
;
2783 unsigned long imask_size
;
2787 imask
= region
->r
.record
.r
.mask
.i
;
2788 imask_size
= region
->r
.record
.r
.imask_size
;
2791 imask_size
= (region
->r
.record
.r
.rlen
* 2 + 7) / 8 + 1;
2792 imask
= xmalloc (imask_size
);
2793 memset (imask
, 0, imask_size
);
2795 region
->r
.record
.r
.imask_size
= imask_size
;
2796 region
->r
.record
.r
.mask
.i
= imask
;
2800 pos
= 2 * (3 - t
% 4);
2803 if (i
>= imask_size
)
2805 as_bad ("Ignoring attempt to spill beyond end of region");
2809 imask
[i
] |= (type
& 0x3) << pos
;
2811 regmask
&= (regmask
- 1);
2821 /* Return the number of instruction slots from FIRST_ADDR to SLOT_ADDR.
2822 SLOT_FRAG is the frag containing SLOT_ADDR, and FIRST_FRAG is the frag
2823 containing FIRST_ADDR. If BEFORE_RELAX, then we use worst-case estimates
2827 slot_index (slot_addr
, slot_frag
, first_addr
, first_frag
, before_relax
)
2828 unsigned long slot_addr
;
2830 unsigned long first_addr
;
2834 unsigned long index
= 0;
2836 /* First time we are called, the initial address and frag are invalid. */
2837 if (first_addr
== 0)
2840 /* If the two addresses are in different frags, then we need to add in
2841 the remaining size of this frag, and then the entire size of intermediate
2843 while (slot_frag
!= first_frag
)
2845 unsigned long start_addr
= (unsigned long) &first_frag
->fr_literal
;
2849 /* We can get the final addresses only during and after
2851 if (first_frag
->fr_next
&& first_frag
->fr_next
->fr_address
)
2852 index
+= 3 * ((first_frag
->fr_next
->fr_address
2853 - first_frag
->fr_address
2854 - first_frag
->fr_fix
) >> 4);
2857 /* We don't know what the final addresses will be. We try our
2858 best to estimate. */
2859 switch (first_frag
->fr_type
)
2865 as_fatal ("only constant space allocation is supported");
2871 /* Take alignment into account. Assume the worst case
2872 before relaxation. */
2873 index
+= 3 * ((1 << first_frag
->fr_offset
) >> 4);
2877 if (first_frag
->fr_symbol
)
2879 as_fatal ("only constant offsets are supported");
2883 index
+= 3 * (first_frag
->fr_offset
>> 4);
2887 /* Add in the full size of the frag converted to instruction slots. */
2888 index
+= 3 * (first_frag
->fr_fix
>> 4);
2889 /* Subtract away the initial part before first_addr. */
2890 index
-= (3 * ((first_addr
>> 4) - (start_addr
>> 4))
2891 + ((first_addr
& 0x3) - (start_addr
& 0x3)));
2893 /* Move to the beginning of the next frag. */
2894 first_frag
= first_frag
->fr_next
;
2895 first_addr
= (unsigned long) &first_frag
->fr_literal
;
2897 /* This can happen if there is section switching in the middle of a
2898 function, causing the frag chain for the function to be broken. */
2899 if (first_frag
== NULL
)
2901 /* We get six warnings for one problem, because of the loop in
2902 fixup_unw_records, and because fixup_unw_records is called 3
2903 times: once before creating the variant frag, once to estimate
2904 its size, and once to relax it. This is unreasonable, so we use
2905 a static var to make sure we only emit the warning once. */
2906 static int warned
= 0;
2910 as_warn ("Corrupted unwind info due to unsupported section switching");
2918 /* Add in the used part of the last frag. */
2919 index
+= (3 * ((slot_addr
>> 4) - (first_addr
>> 4))
2920 + ((slot_addr
& 0x3) - (first_addr
& 0x3)));
2924 /* Optimize unwind record directives. */
2926 static unw_rec_list
*
2927 optimize_unw_records (list
)
2933 /* If the only unwind record is ".prologue" or ".prologue" followed
2934 by ".body", then we can optimize the unwind directives away. */
2935 if (list
->r
.type
== prologue
2936 && (list
->next
->r
.type
== endp
2937 || (list
->next
->r
.type
== body
&& list
->next
->next
->r
.type
== endp
)))
2943 /* Given a complete record list, process any records which have
2944 unresolved fields, (ie length counts for a prologue). After
2945 this has been run, all necessary information should be available
2946 within each record to generate an image. */
2949 fixup_unw_records (list
, before_relax
)
2953 unw_rec_list
*ptr
, *region
= 0;
2954 unsigned long first_addr
= 0, rlen
= 0, t
;
2955 fragS
*first_frag
= 0;
2957 for (ptr
= list
; ptr
; ptr
= ptr
->next
)
2959 if (ptr
->slot_number
== SLOT_NUM_NOT_SET
)
2960 as_bad (" Insn slot not set in unwind record.");
2961 t
= slot_index (ptr
->slot_number
, ptr
->slot_frag
,
2962 first_addr
, first_frag
, before_relax
);
2963 switch (ptr
->r
.type
)
2971 unsigned long last_addr
= 0;
2972 fragS
*last_frag
= NULL
;
2974 first_addr
= ptr
->slot_number
;
2975 first_frag
= ptr
->slot_frag
;
2976 /* Find either the next body/prologue start, or the end of
2977 the function, and determine the size of the region. */
2978 for (last
= ptr
->next
; last
!= NULL
; last
= last
->next
)
2979 if (last
->r
.type
== prologue
|| last
->r
.type
== prologue_gr
2980 || last
->r
.type
== body
|| last
->r
.type
== endp
)
2982 last_addr
= last
->slot_number
;
2983 last_frag
= last
->slot_frag
;
2986 size
= slot_index (last_addr
, last_frag
, first_addr
, first_frag
,
2988 rlen
= ptr
->r
.record
.r
.rlen
= size
;
2989 if (ptr
->r
.type
== body
)
2990 /* End of region. */
2998 ptr
->r
.record
.b
.t
= rlen
- 1 - t
;
3000 /* This happens when a memory-stack-less procedure uses a
3001 ".restore sp" directive at the end of a region to pop
3003 ptr
->r
.record
.b
.t
= 0;
3014 case priunat_when_gr
:
3015 case priunat_when_mem
:
3019 ptr
->r
.record
.p
.t
= t
;
3027 case spill_psprel_p
:
3028 ptr
->r
.record
.x
.t
= t
;
3034 as_bad ("frgr_mem record before region record!");
3037 region
->r
.record
.r
.mask
.fr_mem
|= ptr
->r
.record
.p
.frmask
;
3038 region
->r
.record
.r
.mask
.gr_mem
|= ptr
->r
.record
.p
.grmask
;
3039 set_imask (region
, ptr
->r
.record
.p
.frmask
, t
, 1);
3040 set_imask (region
, ptr
->r
.record
.p
.grmask
, t
, 2);
3045 as_bad ("fr_mem record before region record!");
3048 region
->r
.record
.r
.mask
.fr_mem
|= ptr
->r
.record
.p
.frmask
;
3049 set_imask (region
, ptr
->r
.record
.p
.frmask
, t
, 1);
3054 as_bad ("gr_mem record before region record!");
3057 region
->r
.record
.r
.mask
.gr_mem
|= ptr
->r
.record
.p
.grmask
;
3058 set_imask (region
, ptr
->r
.record
.p
.grmask
, t
, 2);
3063 as_bad ("br_mem record before region record!");
3066 region
->r
.record
.r
.mask
.br_mem
|= ptr
->r
.record
.p
.brmask
;
3067 set_imask (region
, ptr
->r
.record
.p
.brmask
, t
, 3);
3073 as_bad ("gr_gr record before region record!");
3076 set_imask (region
, ptr
->r
.record
.p
.grmask
, t
, 2);
3081 as_bad ("br_gr record before region record!");
3084 set_imask (region
, ptr
->r
.record
.p
.brmask
, t
, 3);
3093 /* Estimate the size of a frag before relaxing. We only have one type of frag
3094 to handle here, which is the unwind info frag. */
3097 ia64_estimate_size_before_relax (fragS
*frag
,
3098 asection
*segtype ATTRIBUTE_UNUSED
)
3103 /* ??? This code is identical to the first part of ia64_convert_frag. */
3104 list
= (unw_rec_list
*) frag
->fr_opcode
;
3105 fixup_unw_records (list
, 0);
3107 len
= calc_record_size (list
);
3108 /* pad to pointer-size boundary. */
3109 pad
= len
% md
.pointer_size
;
3111 len
+= md
.pointer_size
- pad
;
3112 /* Add 8 for the header. */
3114 /* Add a pointer for the personality offset. */
3115 if (frag
->fr_offset
)
3116 size
+= md
.pointer_size
;
3118 /* fr_var carries the max_chars that we created the fragment with.
3119 We must, of course, have allocated enough memory earlier. */
3120 assert (frag
->fr_var
>= size
);
3122 return frag
->fr_fix
+ size
;
3125 /* This function converts a rs_machine_dependent variant frag into a
3126 normal fill frag with the unwind image from the the record list. */
3128 ia64_convert_frag (fragS
*frag
)
3134 /* ??? This code is identical to ia64_estimate_size_before_relax. */
3135 list
= (unw_rec_list
*) frag
->fr_opcode
;
3136 fixup_unw_records (list
, 0);
3138 len
= calc_record_size (list
);
3139 /* pad to pointer-size boundary. */
3140 pad
= len
% md
.pointer_size
;
3142 len
+= md
.pointer_size
- pad
;
3143 /* Add 8 for the header. */
3145 /* Add a pointer for the personality offset. */
3146 if (frag
->fr_offset
)
3147 size
+= md
.pointer_size
;
3149 /* fr_var carries the max_chars that we created the fragment with.
3150 We must, of course, have allocated enough memory earlier. */
3151 assert (frag
->fr_var
>= size
);
3153 /* Initialize the header area. fr_offset is initialized with
3154 unwind.personality_routine. */
3155 if (frag
->fr_offset
)
3157 if (md
.flags
& EF_IA_64_ABI64
)
3158 flag_value
= (bfd_vma
) 3 << 32;
3160 /* 32-bit unwind info block. */
3161 flag_value
= (bfd_vma
) 0x1003 << 32;
3166 md_number_to_chars (frag
->fr_literal
,
3167 (((bfd_vma
) 1 << 48) /* Version. */
3168 | flag_value
/* U & E handler flags. */
3169 | (len
/ md
.pointer_size
)), /* Length. */
3172 /* Skip the header. */
3173 vbyte_mem_ptr
= frag
->fr_literal
+ 8;
3174 process_unw_records (list
, output_vbyte_mem
);
3176 /* Fill the padding bytes with zeros. */
3178 md_number_to_chars (frag
->fr_literal
+ len
+ 8 - md
.pointer_size
+ pad
, 0,
3179 md
.pointer_size
- pad
);
3181 frag
->fr_fix
+= size
;
3182 frag
->fr_type
= rs_fill
;
3184 frag
->fr_offset
= 0;
3188 parse_predicate_and_operand (e
, qp
, po
)
3193 int sep
= parse_operand (e
, ',');
3195 *qp
= e
->X_add_number
- REG_P
;
3196 if (e
->X_op
!= O_register
|| *qp
> 63)
3198 as_bad ("First operand to .%s must be a predicate", po
);
3202 as_warn ("Pointless use of p0 as first operand to .%s", po
);
3204 sep
= parse_operand (e
, ',');
3211 convert_expr_to_ab_reg (e
, ab
, regp
, po
, n
)
3212 const expressionS
*e
;
3218 unsigned int reg
= e
->X_add_number
;
3220 *ab
= *regp
= 0; /* Anything valid is good here. */
3222 if (e
->X_op
!= O_register
)
3223 reg
= REG_GR
; /* Anything invalid is good here. */
3225 if (reg
>= (REG_GR
+ 4) && reg
<= (REG_GR
+ 7))
3228 *regp
= reg
- REG_GR
;
3230 else if ((reg
>= (REG_FR
+ 2) && reg
<= (REG_FR
+ 5))
3231 || (reg
>= (REG_FR
+ 16) && reg
<= (REG_FR
+ 31)))
3234 *regp
= reg
- REG_FR
;
3236 else if (reg
>= (REG_BR
+ 1) && reg
<= (REG_BR
+ 5))
3239 *regp
= reg
- REG_BR
;
3246 case REG_PR
: *regp
= 0; break;
3247 case REG_PSP
: *regp
= 1; break;
3248 case REG_PRIUNAT
: *regp
= 2; break;
3249 case REG_BR
+ 0: *regp
= 3; break;
3250 case REG_AR
+ AR_BSP
: *regp
= 4; break;
3251 case REG_AR
+ AR_BSPSTORE
: *regp
= 5; break;
3252 case REG_AR
+ AR_RNAT
: *regp
= 6; break;
3253 case REG_AR
+ AR_UNAT
: *regp
= 7; break;
3254 case REG_AR
+ AR_FPSR
: *regp
= 8; break;
3255 case REG_AR
+ AR_PFS
: *regp
= 9; break;
3256 case REG_AR
+ AR_LC
: *regp
= 10; break;
3259 as_bad ("Operand %d to .%s must be a preserved register", n
, po
);
3266 convert_expr_to_xy_reg (e
, xy
, regp
, po
, n
)
3267 const expressionS
*e
;
3273 unsigned int reg
= e
->X_add_number
;
3275 *xy
= *regp
= 0; /* Anything valid is good here. */
3277 if (e
->X_op
!= O_register
)
3278 reg
= REG_GR
; /* Anything invalid is good here. */
3280 if (reg
>= (REG_GR
+ 1) && reg
<= (REG_GR
+ 127))
3283 *regp
= reg
- REG_GR
;
3285 else if (reg
>= (REG_FR
+ 2) && reg
<= (REG_FR
+ 127))
3288 *regp
= reg
- REG_FR
;
3290 else if (reg
>= REG_BR
&& reg
<= (REG_BR
+ 7))
3293 *regp
= reg
- REG_BR
;
3296 as_bad ("Operand %d to .%s must be a writable register", n
, po
);
3302 /* The current frag is an alignment frag. */
3303 align_frag
= frag_now
;
3304 s_align_bytes (arg
);
3309 int dummy ATTRIBUTE_UNUSED
;
3316 if (is_it_end_of_statement ())
3318 radix
= input_line_pointer
;
3319 ch
= get_symbol_end ();
3320 ia64_canonicalize_symbol_name (radix
);
3321 if (strcasecmp (radix
, "C"))
3322 as_bad ("Radix `%s' unsupported or invalid", radix
);
3323 *input_line_pointer
= ch
;
3324 demand_empty_rest_of_line ();
3327 /* Helper function for .loc directives. If the assembler is not generating
3328 line number info, then we need to remember which instructions have a .loc
3329 directive, and only call dwarf2_gen_line_info for those instructions. */
3334 CURR_SLOT
.loc_directive_seen
= 1;
3335 dwarf2_directive_loc (x
);
3338 /* .sbss, .bss etc. are macros that expand into ".section SECNAME". */
3340 dot_special_section (which
)
3343 set_section ((char *) special_section_name
[which
]);
3346 /* Return -1 for warning and 0 for error. */
3349 unwind_diagnostic (const char * region
, const char *directive
)
3351 if (md
.unwind_check
== unwind_check_warning
)
3353 as_warn (".%s outside of %s", directive
, region
);
3358 as_bad (".%s outside of %s", directive
, region
);
3359 ignore_rest_of_line ();
3364 /* Return 1 if a directive is in a procedure, -1 if a directive isn't in
3365 a procedure but the unwind directive check is set to warning, 0 if
3366 a directive isn't in a procedure and the unwind directive check is set
3370 in_procedure (const char *directive
)
3372 if (unwind
.proc_pending
.sym
3373 && (!unwind
.saved_text_seg
|| strcmp (directive
, "endp") == 0))
3375 return unwind_diagnostic ("procedure", directive
);
3378 /* Return 1 if a directive is in a prologue, -1 if a directive isn't in
3379 a prologue but the unwind directive check is set to warning, 0 if
3380 a directive isn't in a prologue and the unwind directive check is set
3384 in_prologue (const char *directive
)
3386 int in
= in_procedure (directive
);
3388 if (in
> 0 && !unwind
.prologue
)
3389 in
= unwind_diagnostic ("prologue", directive
);
3390 check_pending_save ();
3394 /* Return 1 if a directive is in a body, -1 if a directive isn't in
3395 a body but the unwind directive check is set to warning, 0 if
3396 a directive isn't in a body and the unwind directive check is set
3400 in_body (const char *directive
)
3402 int in
= in_procedure (directive
);
3404 if (in
> 0 && !unwind
.body
)
3405 in
= unwind_diagnostic ("body region", directive
);
3410 add_unwind_entry (ptr
, sep
)
3417 unwind
.tail
->next
= ptr
;
3422 /* The current entry can in fact be a chain of unwind entries. */
3423 if (unwind
.current_entry
== NULL
)
3424 unwind
.current_entry
= ptr
;
3427 /* The current entry can in fact be a chain of unwind entries. */
3428 if (unwind
.current_entry
== NULL
)
3429 unwind
.current_entry
= ptr
;
3433 /* Parse a tag permitted for the current directive. */
3437 ch
= get_symbol_end ();
3438 /* FIXME: For now, just issue a warning that this isn't implemented. */
3445 as_warn ("Tags on unwind pseudo-ops aren't supported, yet");
3448 *input_line_pointer
= ch
;
3450 if (sep
!= NOT_A_CHAR
)
3451 demand_empty_rest_of_line ();
3456 int dummy ATTRIBUTE_UNUSED
;
3461 if (!in_prologue ("fframe"))
3464 sep
= parse_operand (&e
, ',');
3466 if (e
.X_op
!= O_constant
)
3468 as_bad ("First operand to .fframe must be a constant");
3471 add_unwind_entry (output_mem_stack_f (e
.X_add_number
), sep
);
3476 int dummy ATTRIBUTE_UNUSED
;
3482 if (!in_prologue ("vframe"))
3485 sep
= parse_operand (&e
, ',');
3486 reg
= e
.X_add_number
- REG_GR
;
3487 if (e
.X_op
!= O_register
|| reg
> 127)
3489 as_bad ("First operand to .vframe must be a general register");
3492 add_unwind_entry (output_mem_stack_v (), sep
);
3493 if (! (unwind
.prologue_mask
& 2))
3494 add_unwind_entry (output_psp_gr (reg
), NOT_A_CHAR
);
3495 else if (reg
!= unwind
.prologue_gr
3496 + (unsigned) popcount (unwind
.prologue_mask
& (-2 << 1)))
3497 as_warn ("Operand of .vframe contradicts .prologue");
3508 as_warn (".vframepsp is meaningless, assuming .vframesp was meant");
3510 if (!in_prologue ("vframesp"))
3513 sep
= parse_operand (&e
, ',');
3514 if (e
.X_op
!= O_constant
)
3516 as_bad ("Operand to .vframesp must be a constant (sp-relative offset)");
3519 add_unwind_entry (output_mem_stack_v (), sep
);
3520 add_unwind_entry (output_psp_sprel (e
.X_add_number
), NOT_A_CHAR
);
3525 int dummy ATTRIBUTE_UNUSED
;
3528 unsigned reg1
, reg2
;
3531 if (!in_prologue ("save"))
3534 sep
= parse_operand (&e1
, ',');
3536 sep
= parse_operand (&e2
, ',');
3540 reg1
= e1
.X_add_number
;
3541 /* Make sure its a valid ar.xxx reg, OR its br0, aka 'rp'. */
3542 if (e1
.X_op
!= O_register
)
3544 as_bad ("First operand to .save not a register");
3545 reg1
= REG_PR
; /* Anything valid is good here. */
3547 reg2
= e2
.X_add_number
- REG_GR
;
3548 if (e2
.X_op
!= O_register
|| reg2
> 127)
3550 as_bad ("Second operand to .save not a valid register");
3555 case REG_AR
+ AR_BSP
:
3556 add_unwind_entry (output_bsp_when (), sep
);
3557 add_unwind_entry (output_bsp_gr (reg2
), NOT_A_CHAR
);
3559 case REG_AR
+ AR_BSPSTORE
:
3560 add_unwind_entry (output_bspstore_when (), sep
);
3561 add_unwind_entry (output_bspstore_gr (reg2
), NOT_A_CHAR
);
3563 case REG_AR
+ AR_RNAT
:
3564 add_unwind_entry (output_rnat_when (), sep
);
3565 add_unwind_entry (output_rnat_gr (reg2
), NOT_A_CHAR
);
3567 case REG_AR
+ AR_UNAT
:
3568 add_unwind_entry (output_unat_when (), sep
);
3569 add_unwind_entry (output_unat_gr (reg2
), NOT_A_CHAR
);
3571 case REG_AR
+ AR_FPSR
:
3572 add_unwind_entry (output_fpsr_when (), sep
);
3573 add_unwind_entry (output_fpsr_gr (reg2
), NOT_A_CHAR
);
3575 case REG_AR
+ AR_PFS
:
3576 add_unwind_entry (output_pfs_when (), sep
);
3577 if (! (unwind
.prologue_mask
& 4))
3578 add_unwind_entry (output_pfs_gr (reg2
), NOT_A_CHAR
);
3579 else if (reg2
!= unwind
.prologue_gr
3580 + (unsigned) popcount (unwind
.prologue_mask
& (-4 << 1)))
3581 as_warn ("Second operand of .save contradicts .prologue");
3583 case REG_AR
+ AR_LC
:
3584 add_unwind_entry (output_lc_when (), sep
);
3585 add_unwind_entry (output_lc_gr (reg2
), NOT_A_CHAR
);
3588 add_unwind_entry (output_rp_when (), sep
);
3589 if (! (unwind
.prologue_mask
& 8))
3590 add_unwind_entry (output_rp_gr (reg2
), NOT_A_CHAR
);
3591 else if (reg2
!= unwind
.prologue_gr
)
3592 as_warn ("Second operand of .save contradicts .prologue");
3595 add_unwind_entry (output_preds_when (), sep
);
3596 if (! (unwind
.prologue_mask
& 1))
3597 add_unwind_entry (output_preds_gr (reg2
), NOT_A_CHAR
);
3598 else if (reg2
!= unwind
.prologue_gr
3599 + (unsigned) popcount (unwind
.prologue_mask
& (-1 << 1)))
3600 as_warn ("Second operand of .save contradicts .prologue");
3603 add_unwind_entry (output_priunat_when_gr (), sep
);
3604 add_unwind_entry (output_priunat_gr (reg2
), NOT_A_CHAR
);
3607 as_bad ("First operand to .save not a valid register");
3608 add_unwind_entry (NULL
, sep
);
3615 int dummy ATTRIBUTE_UNUSED
;
3618 unsigned long ecount
; /* # of _additional_ regions to pop */
3621 if (!in_body ("restore"))
3624 sep
= parse_operand (&e1
, ',');
3625 if (e1
.X_op
!= O_register
|| e1
.X_add_number
!= REG_GR
+ 12)
3626 as_bad ("First operand to .restore must be stack pointer (sp)");
3632 sep
= parse_operand (&e2
, ',');
3633 if (e2
.X_op
!= O_constant
|| e2
.X_add_number
< 0)
3635 as_bad ("Second operand to .restore must be a constant >= 0");
3636 e2
.X_add_number
= 0;
3638 ecount
= e2
.X_add_number
;
3641 ecount
= unwind
.prologue_count
- 1;
3643 if (ecount
>= unwind
.prologue_count
)
3645 as_bad ("Epilogue count of %lu exceeds number of nested prologues (%u)",
3646 ecount
+ 1, unwind
.prologue_count
);
3650 add_unwind_entry (output_epilogue (ecount
), sep
);
3652 if (ecount
< unwind
.prologue_count
)
3653 unwind
.prologue_count
-= ecount
+ 1;
3655 unwind
.prologue_count
= 0;
3659 dot_restorereg (pred
)
3662 unsigned int qp
, ab
, reg
;
3665 const char * const po
= pred
? "restorereg.p" : "restorereg";
3667 if (!in_procedure (po
))
3671 sep
= parse_predicate_and_operand (&e
, &qp
, po
);
3674 sep
= parse_operand (&e
, ',');
3677 convert_expr_to_ab_reg (&e
, &ab
, ®
, po
, 1 + pred
);
3679 add_unwind_entry (output_spill_reg (ab
, reg
, 0, 0, qp
), sep
);
3682 static char *special_linkonce_name
[] =
3684 ".gnu.linkonce.ia64unw.", ".gnu.linkonce.ia64unwi."
3688 start_unwind_section (const segT text_seg
, int sec_index
)
3691 Use a slightly ugly scheme to derive the unwind section names from
3692 the text section name:
3694 text sect. unwind table sect.
3695 name: name: comments:
3696 ---------- ----------------- --------------------------------
3698 .text.foo .IA_64.unwind.text.foo
3699 .foo .IA_64.unwind.foo
3701 .gnu.linkonce.ia64unw.foo
3702 _info .IA_64.unwind_info gas issues error message (ditto)
3703 _infoFOO .IA_64.unwind_infoFOO gas issues error message (ditto)
3705 This mapping is done so that:
3707 (a) An object file with unwind info only in .text will use
3708 unwind section names .IA_64.unwind and .IA_64.unwind_info.
3709 This follows the letter of the ABI and also ensures backwards
3710 compatibility with older toolchains.
3712 (b) An object file with unwind info in multiple text sections
3713 will use separate unwind sections for each text section.
3714 This allows us to properly set the "sh_info" and "sh_link"
3715 fields in SHT_IA_64_UNWIND as required by the ABI and also
3716 lets GNU ld support programs with multiple segments
3717 containing unwind info (as might be the case for certain
3718 embedded applications).
3720 (c) An error is issued if there would be a name clash.
3723 const char *text_name
, *sec_text_name
;
3725 const char *prefix
= special_section_name
[sec_index
];
3727 size_t prefix_len
, suffix_len
, sec_name_len
;
3729 sec_text_name
= segment_name (text_seg
);
3730 text_name
= sec_text_name
;
3731 if (strncmp (text_name
, "_info", 5) == 0)
3733 as_bad ("Illegal section name `%s' (causes unwind section name clash)",
3735 ignore_rest_of_line ();
3738 if (strcmp (text_name
, ".text") == 0)
3741 /* Build the unwind section name by appending the (possibly stripped)
3742 text section name to the unwind prefix. */
3744 if (strncmp (text_name
, ".gnu.linkonce.t.",
3745 sizeof (".gnu.linkonce.t.") - 1) == 0)
3747 prefix
= special_linkonce_name
[sec_index
- SPECIAL_SECTION_UNWIND
];
3748 suffix
+= sizeof (".gnu.linkonce.t.") - 1;
3751 prefix_len
= strlen (prefix
);
3752 suffix_len
= strlen (suffix
);
3753 sec_name_len
= prefix_len
+ suffix_len
;
3754 sec_name
= alloca (sec_name_len
+ 1);
3755 memcpy (sec_name
, prefix
, prefix_len
);
3756 memcpy (sec_name
+ prefix_len
, suffix
, suffix_len
);
3757 sec_name
[sec_name_len
] = '\0';
3759 /* Handle COMDAT group. */
3760 if ((text_seg
->flags
& SEC_LINK_ONCE
) != 0
3761 && (elf_section_flags (text_seg
) & SHF_GROUP
) != 0)
3764 size_t len
, group_name_len
;
3765 const char *group_name
= elf_group_name (text_seg
);
3767 if (group_name
== NULL
)
3769 as_bad ("Group section `%s' has no group signature",
3771 ignore_rest_of_line ();
3774 /* We have to construct a fake section directive. */
3775 group_name_len
= strlen (group_name
);
3777 + 16 /* ,"aG",@progbits, */
3778 + group_name_len
/* ,group_name */
3781 section
= alloca (len
+ 1);
3782 memcpy (section
, sec_name
, sec_name_len
);
3783 memcpy (section
+ sec_name_len
, ",\"aG\",@progbits,", 16);
3784 memcpy (section
+ sec_name_len
+ 16, group_name
, group_name_len
);
3785 memcpy (section
+ len
- 7, ",comdat", 7);
3786 section
[len
] = '\0';
3787 set_section (section
);
3791 set_section (sec_name
);
3792 bfd_set_section_flags (stdoutput
, now_seg
,
3793 SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
3796 elf_linked_to_section (now_seg
) = text_seg
;
3800 generate_unwind_image (const segT text_seg
)
3805 /* Mark the end of the unwind info, so that we can compute the size of the
3806 last unwind region. */
3807 add_unwind_entry (output_endp (), NOT_A_CHAR
);
3809 /* Force out pending instructions, to make sure all unwind records have
3810 a valid slot_number field. */
3811 ia64_flush_insns ();
3813 /* Generate the unwind record. */
3814 list
= optimize_unw_records (unwind
.list
);
3815 fixup_unw_records (list
, 1);
3816 size
= calc_record_size (list
);
3818 if (size
> 0 || unwind
.force_unwind_entry
)
3820 unwind
.force_unwind_entry
= 0;
3821 /* pad to pointer-size boundary. */
3822 pad
= size
% md
.pointer_size
;
3824 size
+= md
.pointer_size
- pad
;
3825 /* Add 8 for the header. */
3827 /* Add a pointer for the personality offset. */
3828 if (unwind
.personality_routine
)
3829 size
+= md
.pointer_size
;
3832 /* If there are unwind records, switch sections, and output the info. */
3836 bfd_reloc_code_real_type reloc
;
3838 start_unwind_section (text_seg
, SPECIAL_SECTION_UNWIND_INFO
);
3840 /* Make sure the section has 4 byte alignment for ILP32 and
3841 8 byte alignment for LP64. */
3842 frag_align (md
.pointer_size_shift
, 0, 0);
3843 record_alignment (now_seg
, md
.pointer_size_shift
);
3845 /* Set expression which points to start of unwind descriptor area. */
3846 unwind
.info
= expr_build_dot ();
3848 frag_var (rs_machine_dependent
, size
, size
, 0, 0,
3849 (offsetT
) (long) unwind
.personality_routine
,
3852 /* Add the personality address to the image. */
3853 if (unwind
.personality_routine
!= 0)
3855 exp
.X_op
= O_symbol
;
3856 exp
.X_add_symbol
= unwind
.personality_routine
;
3857 exp
.X_add_number
= 0;
3859 if (md
.flags
& EF_IA_64_BE
)
3861 if (md
.flags
& EF_IA_64_ABI64
)
3862 reloc
= BFD_RELOC_IA64_LTOFF_FPTR64MSB
;
3864 reloc
= BFD_RELOC_IA64_LTOFF_FPTR32MSB
;
3868 if (md
.flags
& EF_IA_64_ABI64
)
3869 reloc
= BFD_RELOC_IA64_LTOFF_FPTR64LSB
;
3871 reloc
= BFD_RELOC_IA64_LTOFF_FPTR32LSB
;
3874 fix_new_exp (frag_now
, frag_now_fix () - md
.pointer_size
,
3875 md
.pointer_size
, &exp
, 0, reloc
);
3876 unwind
.personality_routine
= 0;
3880 free_saved_prologue_counts ();
3881 unwind
.list
= unwind
.tail
= unwind
.current_entry
= NULL
;
3885 dot_handlerdata (dummy
)
3886 int dummy ATTRIBUTE_UNUSED
;
3888 if (!in_procedure ("handlerdata"))
3890 unwind
.force_unwind_entry
= 1;
3892 /* Remember which segment we're in so we can switch back after .endp */
3893 unwind
.saved_text_seg
= now_seg
;
3894 unwind
.saved_text_subseg
= now_subseg
;
3896 /* Generate unwind info into unwind-info section and then leave that
3897 section as the currently active one so dataXX directives go into
3898 the language specific data area of the unwind info block. */
3899 generate_unwind_image (now_seg
);
3900 demand_empty_rest_of_line ();
3904 dot_unwentry (dummy
)
3905 int dummy ATTRIBUTE_UNUSED
;
3907 if (!in_procedure ("unwentry"))
3909 unwind
.force_unwind_entry
= 1;
3910 demand_empty_rest_of_line ();
3915 int dummy ATTRIBUTE_UNUSED
;
3920 if (!in_prologue ("altrp"))
3923 parse_operand (&e
, 0);
3924 reg
= e
.X_add_number
- REG_BR
;
3925 if (e
.X_op
!= O_register
|| reg
> 7)
3927 as_bad ("First operand to .altrp not a valid branch register");
3930 add_unwind_entry (output_rp_br (reg
), 0);
3934 dot_savemem (psprel
)
3940 const char * const po
= psprel
? "savepsp" : "savesp";
3942 if (!in_prologue (po
))
3945 sep
= parse_operand (&e1
, ',');
3947 sep
= parse_operand (&e2
, ',');
3951 reg1
= e1
.X_add_number
;
3952 val
= e2
.X_add_number
;
3954 /* Make sure its a valid ar.xxx reg, OR its br0, aka 'rp'. */
3955 if (e1
.X_op
!= O_register
)
3957 as_bad ("First operand to .%s not a register", po
);
3958 reg1
= REG_PR
; /* Anything valid is good here. */
3960 if (e2
.X_op
!= O_constant
)
3962 as_bad ("Second operand to .%s not a constant", po
);
3968 case REG_AR
+ AR_BSP
:
3969 add_unwind_entry (output_bsp_when (), sep
);
3970 add_unwind_entry ((psprel
3972 : output_bsp_sprel
) (val
), NOT_A_CHAR
);
3974 case REG_AR
+ AR_BSPSTORE
:
3975 add_unwind_entry (output_bspstore_when (), sep
);
3976 add_unwind_entry ((psprel
3977 ? output_bspstore_psprel
3978 : output_bspstore_sprel
) (val
), NOT_A_CHAR
);
3980 case REG_AR
+ AR_RNAT
:
3981 add_unwind_entry (output_rnat_when (), sep
);
3982 add_unwind_entry ((psprel
3983 ? output_rnat_psprel
3984 : output_rnat_sprel
) (val
), NOT_A_CHAR
);
3986 case REG_AR
+ AR_UNAT
:
3987 add_unwind_entry (output_unat_when (), sep
);
3988 add_unwind_entry ((psprel
3989 ? output_unat_psprel
3990 : output_unat_sprel
) (val
), NOT_A_CHAR
);
3992 case REG_AR
+ AR_FPSR
:
3993 add_unwind_entry (output_fpsr_when (), sep
);
3994 add_unwind_entry ((psprel
3995 ? output_fpsr_psprel
3996 : output_fpsr_sprel
) (val
), NOT_A_CHAR
);
3998 case REG_AR
+ AR_PFS
:
3999 add_unwind_entry (output_pfs_when (), sep
);
4000 add_unwind_entry ((psprel
4002 : output_pfs_sprel
) (val
), NOT_A_CHAR
);
4004 case REG_AR
+ AR_LC
:
4005 add_unwind_entry (output_lc_when (), sep
);
4006 add_unwind_entry ((psprel
4008 : output_lc_sprel
) (val
), NOT_A_CHAR
);
4011 add_unwind_entry (output_rp_when (), sep
);
4012 add_unwind_entry ((psprel
4014 : output_rp_sprel
) (val
), NOT_A_CHAR
);
4017 add_unwind_entry (output_preds_when (), sep
);
4018 add_unwind_entry ((psprel
4019 ? output_preds_psprel
4020 : output_preds_sprel
) (val
), NOT_A_CHAR
);
4023 add_unwind_entry (output_priunat_when_mem (), sep
);
4024 add_unwind_entry ((psprel
4025 ? output_priunat_psprel
4026 : output_priunat_sprel
) (val
), NOT_A_CHAR
);
4029 as_bad ("First operand to .%s not a valid register", po
);
4030 add_unwind_entry (NULL
, sep
);
4037 int dummy ATTRIBUTE_UNUSED
;
4043 if (!in_prologue ("save.g"))
4046 sep
= parse_operand (&e
, ',');
4048 grmask
= e
.X_add_number
;
4049 if (e
.X_op
!= O_constant
4050 || e
.X_add_number
<= 0
4051 || e
.X_add_number
> 0xf)
4053 as_bad ("First operand to .save.g must be a positive 4-bit constant");
4060 int n
= popcount (grmask
);
4062 parse_operand (&e
, 0);
4063 reg
= e
.X_add_number
- REG_GR
;
4064 if (e
.X_op
!= O_register
|| reg
> 127)
4066 as_bad ("Second operand to .save.g must be a general register");
4069 else if (reg
> 128U - n
)
4071 as_bad ("Second operand to .save.g must be the first of %d general registers", n
);
4074 add_unwind_entry (output_gr_gr (grmask
, reg
), 0);
4077 add_unwind_entry (output_gr_mem (grmask
), 0);
4082 int dummy ATTRIBUTE_UNUSED
;
4086 if (!in_prologue ("save.f"))
4089 parse_operand (&e
, 0);
4091 if (e
.X_op
!= O_constant
4092 || e
.X_add_number
<= 0
4093 || e
.X_add_number
> 0xfffff)
4095 as_bad ("Operand to .save.f must be a positive 20-bit constant");
4098 add_unwind_entry (output_fr_mem (e
.X_add_number
), 0);
4103 int dummy ATTRIBUTE_UNUSED
;
4109 if (!in_prologue ("save.b"))
4112 sep
= parse_operand (&e
, ',');
4114 brmask
= e
.X_add_number
;
4115 if (e
.X_op
!= O_constant
4116 || e
.X_add_number
<= 0
4117 || e
.X_add_number
> 0x1f)
4119 as_bad ("First operand to .save.b must be a positive 5-bit constant");
4126 int n
= popcount (brmask
);
4128 parse_operand (&e
, 0);
4129 reg
= e
.X_add_number
- REG_GR
;
4130 if (e
.X_op
!= O_register
|| reg
> 127)
4132 as_bad ("Second operand to .save.b must be a general register");
4135 else if (reg
> 128U - n
)
4137 as_bad ("Second operand to .save.b must be the first of %d general registers", n
);
4140 add_unwind_entry (output_br_gr (brmask
, reg
), 0);
4143 add_unwind_entry (output_br_mem (brmask
), 0);
4148 int dummy ATTRIBUTE_UNUSED
;
4152 if (!in_prologue ("save.gf"))
4155 if (parse_operand (&e1
, ',') == ',')
4156 parse_operand (&e2
, 0);
4160 if (e1
.X_op
!= O_constant
4161 || e1
.X_add_number
< 0
4162 || e1
.X_add_number
> 0xf)
4164 as_bad ("First operand to .save.gf must be a non-negative 4-bit constant");
4166 e1
.X_add_number
= 0;
4168 if (e2
.X_op
!= O_constant
4169 || e2
.X_add_number
< 0
4170 || e2
.X_add_number
> 0xfffff)
4172 as_bad ("Second operand to .save.gf must be a non-negative 20-bit constant");
4174 e2
.X_add_number
= 0;
4176 if (e1
.X_op
== O_constant
4177 && e2
.X_op
== O_constant
4178 && e1
.X_add_number
== 0
4179 && e2
.X_add_number
== 0)
4180 as_bad ("Operands to .save.gf may not be both zero");
4182 add_unwind_entry (output_frgr_mem (e1
.X_add_number
, e2
.X_add_number
), 0);
4187 int dummy ATTRIBUTE_UNUSED
;
4191 if (!in_prologue ("spill"))
4194 parse_operand (&e
, 0);
4196 if (e
.X_op
!= O_constant
)
4198 as_bad ("Operand to .spill must be a constant");
4201 add_unwind_entry (output_spill_base (e
.X_add_number
), 0);
4209 unsigned int qp
, ab
, xy
, reg
, treg
;
4211 const char * const po
= pred
? "spillreg.p" : "spillreg";
4213 if (!in_procedure (po
))
4217 sep
= parse_predicate_and_operand (&e
, &qp
, po
);
4220 sep
= parse_operand (&e
, ',');
4223 convert_expr_to_ab_reg (&e
, &ab
, ®
, po
, 1 + pred
);
4226 sep
= parse_operand (&e
, ',');
4229 convert_expr_to_xy_reg (&e
, &xy
, &treg
, po
, 2 + pred
);
4231 add_unwind_entry (output_spill_reg (ab
, reg
, treg
, xy
, qp
), sep
);
4235 dot_spillmem (psprel
)
4239 int pred
= (psprel
< 0), sep
;
4240 unsigned int qp
, ab
, reg
;
4246 po
= psprel
? "spillpsp.p" : "spillsp.p";
4249 po
= psprel
? "spillpsp" : "spillsp";
4251 if (!in_procedure (po
))
4255 sep
= parse_predicate_and_operand (&e
, &qp
, po
);
4258 sep
= parse_operand (&e
, ',');
4261 convert_expr_to_ab_reg (&e
, &ab
, ®
, po
, 1 + pred
);
4264 sep
= parse_operand (&e
, ',');
4267 if (e
.X_op
!= O_constant
)
4269 as_bad ("Operand %d to .%s must be a constant", 2 + pred
, po
);
4274 add_unwind_entry (output_spill_psprel (ab
, reg
, e
.X_add_number
, qp
), sep
);
4276 add_unwind_entry (output_spill_sprel (ab
, reg
, e
.X_add_number
, qp
), sep
);
4280 get_saved_prologue_count (lbl
)
4283 label_prologue_count
*lpc
= unwind
.saved_prologue_counts
;
4285 while (lpc
!= NULL
&& lpc
->label_number
!= lbl
)
4289 return lpc
->prologue_count
;
4291 as_bad ("Missing .label_state %ld", lbl
);
4296 save_prologue_count (lbl
, count
)
4300 label_prologue_count
*lpc
= unwind
.saved_prologue_counts
;
4302 while (lpc
!= NULL
&& lpc
->label_number
!= lbl
)
4306 lpc
->prologue_count
= count
;
4309 label_prologue_count
*new_lpc
= xmalloc (sizeof (* new_lpc
));
4311 new_lpc
->next
= unwind
.saved_prologue_counts
;
4312 new_lpc
->label_number
= lbl
;
4313 new_lpc
->prologue_count
= count
;
4314 unwind
.saved_prologue_counts
= new_lpc
;
4319 free_saved_prologue_counts ()
4321 label_prologue_count
*lpc
= unwind
.saved_prologue_counts
;
4322 label_prologue_count
*next
;
4331 unwind
.saved_prologue_counts
= NULL
;
4335 dot_label_state (dummy
)
4336 int dummy ATTRIBUTE_UNUSED
;
4340 if (!in_body ("label_state"))
4343 parse_operand (&e
, 0);
4344 if (e
.X_op
== O_constant
)
4345 save_prologue_count (e
.X_add_number
, unwind
.prologue_count
);
4348 as_bad ("Operand to .label_state must be a constant");
4351 add_unwind_entry (output_label_state (e
.X_add_number
), 0);
4355 dot_copy_state (dummy
)
4356 int dummy ATTRIBUTE_UNUSED
;
4360 if (!in_body ("copy_state"))
4363 parse_operand (&e
, 0);
4364 if (e
.X_op
== O_constant
)
4365 unwind
.prologue_count
= get_saved_prologue_count (e
.X_add_number
);
4368 as_bad ("Operand to .copy_state must be a constant");
4371 add_unwind_entry (output_copy_state (e
.X_add_number
), 0);
4376 int dummy ATTRIBUTE_UNUSED
;
4381 if (!in_prologue ("unwabi"))
4384 sep
= parse_operand (&e1
, ',');
4386 parse_operand (&e2
, 0);
4390 if (e1
.X_op
!= O_constant
)
4392 as_bad ("First operand to .unwabi must be a constant");
4393 e1
.X_add_number
= 0;
4396 if (e2
.X_op
!= O_constant
)
4398 as_bad ("Second operand to .unwabi must be a constant");
4399 e2
.X_add_number
= 0;
4402 add_unwind_entry (output_unwabi (e1
.X_add_number
, e2
.X_add_number
), 0);
4406 dot_personality (dummy
)
4407 int dummy ATTRIBUTE_UNUSED
;
4410 if (!in_procedure ("personality"))
4413 name
= input_line_pointer
;
4414 c
= get_symbol_end ();
4415 p
= input_line_pointer
;
4416 unwind
.personality_routine
= symbol_find_or_make (name
);
4417 unwind
.force_unwind_entry
= 1;
4420 demand_empty_rest_of_line ();
4425 int dummy ATTRIBUTE_UNUSED
;
4429 proc_pending
*pending
, *last_pending
;
4431 if (unwind
.proc_pending
.sym
)
4433 (md
.unwind_check
== unwind_check_warning
4435 : as_bad
) ("Missing .endp after previous .proc");
4436 while (unwind
.proc_pending
.next
)
4438 pending
= unwind
.proc_pending
.next
;
4439 unwind
.proc_pending
.next
= pending
->next
;
4443 last_pending
= NULL
;
4445 /* Parse names of main and alternate entry points and mark them as
4446 function symbols: */
4450 name
= input_line_pointer
;
4451 c
= get_symbol_end ();
4452 p
= input_line_pointer
;
4454 as_bad ("Empty argument of .proc");
4457 sym
= symbol_find_or_make (name
);
4458 if (S_IS_DEFINED (sym
))
4459 as_bad ("`%s' was already defined", name
);
4460 else if (!last_pending
)
4462 unwind
.proc_pending
.sym
= sym
;
4463 last_pending
= &unwind
.proc_pending
;
4467 pending
= xmalloc (sizeof (*pending
));
4469 last_pending
= last_pending
->next
= pending
;
4471 symbol_get_bfdsym (sym
)->flags
|= BSF_FUNCTION
;
4475 if (*input_line_pointer
!= ',')
4477 ++input_line_pointer
;
4481 unwind
.proc_pending
.sym
= expr_build_dot ();
4482 last_pending
= &unwind
.proc_pending
;
4484 last_pending
->next
= NULL
;
4485 demand_empty_rest_of_line ();
4488 unwind
.prologue
= 0;
4489 unwind
.prologue_count
= 0;
4492 unwind
.list
= unwind
.tail
= unwind
.current_entry
= NULL
;
4493 unwind
.personality_routine
= 0;
4498 int dummy ATTRIBUTE_UNUSED
;
4500 if (!in_procedure ("body"))
4502 if (!unwind
.prologue
&& !unwind
.body
&& unwind
.insn
)
4503 as_warn ("Initial .body should precede any instructions");
4504 check_pending_save ();
4506 unwind
.prologue
= 0;
4507 unwind
.prologue_mask
= 0;
4510 add_unwind_entry (output_body (), 0);
4514 dot_prologue (dummy
)
4515 int dummy ATTRIBUTE_UNUSED
;
4517 unsigned mask
= 0, grsave
= 0;
4519 if (!in_procedure ("prologue"))
4521 if (unwind
.prologue
)
4523 as_bad (".prologue within prologue");
4524 ignore_rest_of_line ();
4527 if (!unwind
.body
&& unwind
.insn
)
4528 as_warn ("Initial .prologue should precede any instructions");
4530 if (!is_it_end_of_statement ())
4533 int n
, sep
= parse_operand (&e
, ',');
4535 if (e
.X_op
!= O_constant
4536 || e
.X_add_number
< 0
4537 || e
.X_add_number
> 0xf)
4538 as_bad ("First operand to .prologue must be a positive 4-bit constant");
4539 else if (e
.X_add_number
== 0)
4540 as_warn ("Pointless use of zero first operand to .prologue");
4542 mask
= e
.X_add_number
;
4543 n
= popcount (mask
);
4546 parse_operand (&e
, 0);
4549 if (e
.X_op
== O_constant
4550 && e
.X_add_number
>= 0
4551 && e
.X_add_number
< 128)
4553 if (md
.unwind_check
== unwind_check_error
)
4554 as_warn ("Using a constant as second operand to .prologue is deprecated");
4555 grsave
= e
.X_add_number
;
4557 else if (e
.X_op
!= O_register
4558 || (grsave
= e
.X_add_number
- REG_GR
) > 127)
4560 as_bad ("Second operand to .prologue must be a general register");
4563 else if (grsave
> 128U - n
)
4565 as_bad ("Second operand to .prologue must be the first of %d general registers", n
);
4572 add_unwind_entry (output_prologue_gr (mask
, grsave
), 0);
4574 add_unwind_entry (output_prologue (), 0);
4576 unwind
.prologue
= 1;
4577 unwind
.prologue_mask
= mask
;
4578 unwind
.prologue_gr
= grsave
;
4580 ++unwind
.prologue_count
;
4585 int dummy ATTRIBUTE_UNUSED
;
4588 int bytes_per_address
;
4591 subsegT saved_subseg
;
4592 proc_pending
*pending
;
4593 int unwind_check
= md
.unwind_check
;
4595 md
.unwind_check
= unwind_check_error
;
4596 if (!in_procedure ("endp"))
4598 md
.unwind_check
= unwind_check
;
4600 if (unwind
.saved_text_seg
)
4602 saved_seg
= unwind
.saved_text_seg
;
4603 saved_subseg
= unwind
.saved_text_subseg
;
4604 unwind
.saved_text_seg
= NULL
;
4608 saved_seg
= now_seg
;
4609 saved_subseg
= now_subseg
;
4612 insn_group_break (1, 0, 0);
4614 /* If there wasn't a .handlerdata, we haven't generated an image yet. */
4616 generate_unwind_image (saved_seg
);
4618 if (unwind
.info
|| unwind
.force_unwind_entry
)
4622 subseg_set (md
.last_text_seg
, 0);
4623 proc_end
= expr_build_dot ();
4625 start_unwind_section (saved_seg
, SPECIAL_SECTION_UNWIND
);
4627 /* Make sure that section has 4 byte alignment for ILP32 and
4628 8 byte alignment for LP64. */
4629 record_alignment (now_seg
, md
.pointer_size_shift
);
4631 /* Need space for 3 pointers for procedure start, procedure end,
4633 memset (frag_more (3 * md
.pointer_size
), 0, 3 * md
.pointer_size
);
4634 where
= frag_now_fix () - (3 * md
.pointer_size
);
4635 bytes_per_address
= bfd_arch_bits_per_address (stdoutput
) / 8;
4637 /* Issue the values of a) Proc Begin, b) Proc End, c) Unwind Record. */
4638 e
.X_op
= O_pseudo_fixup
;
4639 e
.X_op_symbol
= pseudo_func
[FUNC_SEG_RELATIVE
].u
.sym
;
4641 if (!S_IS_LOCAL (unwind
.proc_pending
.sym
)
4642 && S_IS_DEFINED (unwind
.proc_pending
.sym
))
4643 e
.X_add_symbol
= symbol_temp_new (S_GET_SEGMENT (unwind
.proc_pending
.sym
),
4644 S_GET_VALUE (unwind
.proc_pending
.sym
),
4645 symbol_get_frag (unwind
.proc_pending
.sym
));
4647 e
.X_add_symbol
= unwind
.proc_pending
.sym
;
4648 ia64_cons_fix_new (frag_now
, where
, bytes_per_address
, &e
);
4650 e
.X_op
= O_pseudo_fixup
;
4651 e
.X_op_symbol
= pseudo_func
[FUNC_SEG_RELATIVE
].u
.sym
;
4653 e
.X_add_symbol
= proc_end
;
4654 ia64_cons_fix_new (frag_now
, where
+ bytes_per_address
,
4655 bytes_per_address
, &e
);
4659 e
.X_op
= O_pseudo_fixup
;
4660 e
.X_op_symbol
= pseudo_func
[FUNC_SEG_RELATIVE
].u
.sym
;
4662 e
.X_add_symbol
= unwind
.info
;
4663 ia64_cons_fix_new (frag_now
, where
+ (bytes_per_address
* 2),
4664 bytes_per_address
, &e
);
4667 subseg_set (saved_seg
, saved_subseg
);
4669 /* Set symbol sizes. */
4670 pending
= &unwind
.proc_pending
;
4671 if (S_GET_NAME (pending
->sym
))
4675 symbolS
*sym
= pending
->sym
;
4677 if (!S_IS_DEFINED (sym
))
4678 as_bad ("`%s' was not defined within procedure", S_GET_NAME (sym
));
4679 else if (S_GET_SIZE (sym
) == 0
4680 && symbol_get_obj (sym
)->size
== NULL
)
4682 fragS
*frag
= symbol_get_frag (sym
);
4686 if (frag
== frag_now
&& SEG_NORMAL (now_seg
))
4687 S_SET_SIZE (sym
, frag_now_fix () - S_GET_VALUE (sym
));
4690 symbol_get_obj (sym
)->size
=
4691 (expressionS
*) xmalloc (sizeof (expressionS
));
4692 symbol_get_obj (sym
)->size
->X_op
= O_subtract
;
4693 symbol_get_obj (sym
)->size
->X_add_symbol
4694 = symbol_new (FAKE_LABEL_NAME
, now_seg
,
4695 frag_now_fix (), frag_now
);
4696 symbol_get_obj (sym
)->size
->X_op_symbol
= sym
;
4697 symbol_get_obj (sym
)->size
->X_add_number
= 0;
4701 } while ((pending
= pending
->next
) != NULL
);
4704 /* Parse names of main and alternate entry points. */
4710 name
= input_line_pointer
;
4711 c
= get_symbol_end ();
4712 p
= input_line_pointer
;
4714 (md
.unwind_check
== unwind_check_warning
4716 : as_bad
) ("Empty argument of .endp");
4719 symbolS
*sym
= symbol_find (name
);
4721 for (pending
= &unwind
.proc_pending
; pending
; pending
= pending
->next
)
4723 if (sym
== pending
->sym
)
4725 pending
->sym
= NULL
;
4729 if (!sym
|| !pending
)
4730 as_warn ("`%s' was not specified with previous .proc", name
);
4734 if (*input_line_pointer
!= ',')
4736 ++input_line_pointer
;
4738 demand_empty_rest_of_line ();
4740 /* Deliberately only checking for the main entry point here; the
4741 language spec even says all arguments to .endp are ignored. */
4742 if (unwind
.proc_pending
.sym
4743 && S_GET_NAME (unwind
.proc_pending
.sym
)
4744 && strcmp (S_GET_NAME (unwind
.proc_pending
.sym
), FAKE_LABEL_NAME
))
4745 as_warn ("`%s' should be an operand to this .endp",
4746 S_GET_NAME (unwind
.proc_pending
.sym
));
4747 while (unwind
.proc_pending
.next
)
4749 pending
= unwind
.proc_pending
.next
;
4750 unwind
.proc_pending
.next
= pending
->next
;
4753 unwind
.proc_pending
.sym
= unwind
.info
= NULL
;
4757 dot_template (template)
4760 CURR_SLOT
.user_template
= template;
4765 int dummy ATTRIBUTE_UNUSED
;
4767 int ins
, locs
, outs
, rots
;
4769 if (is_it_end_of_statement ())
4770 ins
= locs
= outs
= rots
= 0;
4773 ins
= get_absolute_expression ();
4774 if (*input_line_pointer
++ != ',')
4776 locs
= get_absolute_expression ();
4777 if (*input_line_pointer
++ != ',')
4779 outs
= get_absolute_expression ();
4780 if (*input_line_pointer
++ != ',')
4782 rots
= get_absolute_expression ();
4784 set_regstack (ins
, locs
, outs
, rots
);
4788 as_bad ("Comma expected");
4789 ignore_rest_of_line ();
4797 valueT num_alloced
= 0;
4798 struct dynreg
**drpp
, *dr
;
4799 int ch
, base_reg
= 0;
4805 case DYNREG_GR
: base_reg
= REG_GR
+ 32; break;
4806 case DYNREG_FR
: base_reg
= REG_FR
+ 32; break;
4807 case DYNREG_PR
: base_reg
= REG_P
+ 16; break;
4811 /* First, remove existing names from hash table. */
4812 for (dr
= md
.dynreg
[type
]; dr
&& dr
->num_regs
; dr
= dr
->next
)
4814 hash_delete (md
.dynreg_hash
, dr
->name
);
4815 /* FIXME: Free dr->name. */
4819 drpp
= &md
.dynreg
[type
];
4822 start
= input_line_pointer
;
4823 ch
= get_symbol_end ();
4824 len
= strlen (ia64_canonicalize_symbol_name (start
));
4825 *input_line_pointer
= ch
;
4828 if (*input_line_pointer
!= '[')
4830 as_bad ("Expected '['");
4833 ++input_line_pointer
; /* skip '[' */
4835 num_regs
= get_absolute_expression ();
4837 if (*input_line_pointer
++ != ']')
4839 as_bad ("Expected ']'");
4844 as_bad ("Number of elements must be positive");
4849 num_alloced
+= num_regs
;
4853 if (num_alloced
> md
.rot
.num_regs
)
4855 as_bad ("Used more than the declared %d rotating registers",
4861 if (num_alloced
> 96)
4863 as_bad ("Used more than the available 96 rotating registers");
4868 if (num_alloced
> 48)
4870 as_bad ("Used more than the available 48 rotating registers");
4881 *drpp
= obstack_alloc (¬es
, sizeof (*dr
));
4882 memset (*drpp
, 0, sizeof (*dr
));
4885 name
= obstack_alloc (¬es
, len
+ 1);
4886 memcpy (name
, start
, len
);
4891 dr
->num_regs
= num_regs
;
4892 dr
->base
= base_reg
;
4894 base_reg
+= num_regs
;
4896 if (hash_insert (md
.dynreg_hash
, name
, dr
))
4898 as_bad ("Attempt to redefine register set `%s'", name
);
4899 obstack_free (¬es
, name
);
4903 if (*input_line_pointer
!= ',')
4905 ++input_line_pointer
; /* skip comma */
4908 demand_empty_rest_of_line ();
4912 ignore_rest_of_line ();
4916 dot_byteorder (byteorder
)
4919 segment_info_type
*seginfo
= seg_info (now_seg
);
4921 if (byteorder
== -1)
4923 if (seginfo
->tc_segment_info_data
.endian
== 0)
4924 seginfo
->tc_segment_info_data
.endian
= default_big_endian
? 1 : 2;
4925 byteorder
= seginfo
->tc_segment_info_data
.endian
== 1;
4928 seginfo
->tc_segment_info_data
.endian
= byteorder
? 1 : 2;
4930 if (target_big_endian
!= byteorder
)
4932 target_big_endian
= byteorder
;
4933 if (target_big_endian
)
4935 ia64_number_to_chars
= number_to_chars_bigendian
;
4936 ia64_float_to_chars
= ia64_float_to_chars_bigendian
;
4940 ia64_number_to_chars
= number_to_chars_littleendian
;
4941 ia64_float_to_chars
= ia64_float_to_chars_littleendian
;
4948 int dummy ATTRIBUTE_UNUSED
;
4955 option
= input_line_pointer
;
4956 ch
= get_symbol_end ();
4957 if (strcmp (option
, "lsb") == 0)
4958 md
.flags
&= ~EF_IA_64_BE
;
4959 else if (strcmp (option
, "msb") == 0)
4960 md
.flags
|= EF_IA_64_BE
;
4961 else if (strcmp (option
, "abi32") == 0)
4962 md
.flags
&= ~EF_IA_64_ABI64
;
4963 else if (strcmp (option
, "abi64") == 0)
4964 md
.flags
|= EF_IA_64_ABI64
;
4966 as_bad ("Unknown psr option `%s'", option
);
4967 *input_line_pointer
= ch
;
4970 if (*input_line_pointer
!= ',')
4973 ++input_line_pointer
;
4976 demand_empty_rest_of_line ();
4981 int dummy ATTRIBUTE_UNUSED
;
4983 new_logical_line (0, get_absolute_expression ());
4984 demand_empty_rest_of_line ();
4988 cross_section (ref
, cons
, ua
)
4990 void (*cons
) PARAMS((int));
4994 int saved_auto_align
;
4995 unsigned int section_count
;
4998 start
= input_line_pointer
;
5004 name
= demand_copy_C_string (&len
);
5005 obstack_free(¬es
, name
);
5008 ignore_rest_of_line ();
5014 char c
= get_symbol_end ();
5016 if (input_line_pointer
== start
)
5018 as_bad ("Missing section name");
5019 ignore_rest_of_line ();
5022 *input_line_pointer
= c
;
5024 end
= input_line_pointer
;
5026 if (*input_line_pointer
!= ',')
5028 as_bad ("Comma expected after section name");
5029 ignore_rest_of_line ();
5033 end
= input_line_pointer
+ 1; /* skip comma */
5034 input_line_pointer
= start
;
5035 md
.keep_pending_output
= 1;
5036 section_count
= bfd_count_sections(stdoutput
);
5037 obj_elf_section (0);
5038 if (section_count
!= bfd_count_sections(stdoutput
))
5039 as_warn ("Creating sections with .xdataN/.xrealN/.xstringZ is deprecated.");
5040 input_line_pointer
= end
;
5041 saved_auto_align
= md
.auto_align
;
5046 md
.auto_align
= saved_auto_align
;
5047 obj_elf_previous (0);
5048 md
.keep_pending_output
= 0;
5055 cross_section (size
, cons
, 0);
5058 /* Why doesn't float_cons() call md_cons_align() the way cons() does? */
5061 stmt_float_cons (kind
)
5082 ia64_do_align (alignment
);
5090 int saved_auto_align
= md
.auto_align
;
5094 md
.auto_align
= saved_auto_align
;
5098 dot_xfloat_cons (kind
)
5101 cross_section (kind
, stmt_float_cons
, 0);
5105 dot_xstringer (zero
)
5108 cross_section (zero
, stringer
, 0);
5115 cross_section (size
, cons
, 1);
5119 dot_xfloat_cons_ua (kind
)
5122 cross_section (kind
, float_cons
, 1);
5125 /* .reg.val <regname>,value */
5129 int dummy ATTRIBUTE_UNUSED
;
5133 expression_and_evaluate (®
);
5134 if (reg
.X_op
!= O_register
)
5136 as_bad (_("Register name expected"));
5137 ignore_rest_of_line ();
5139 else if (*input_line_pointer
++ != ',')
5141 as_bad (_("Comma expected"));
5142 ignore_rest_of_line ();
5146 valueT value
= get_absolute_expression ();
5147 int regno
= reg
.X_add_number
;
5148 if (regno
<= REG_GR
|| regno
> REG_GR
+ 127)
5149 as_warn (_("Register value annotation ignored"));
5152 gr_values
[regno
- REG_GR
].known
= 1;
5153 gr_values
[regno
- REG_GR
].value
= value
;
5154 gr_values
[regno
- REG_GR
].path
= md
.path
;
5157 demand_empty_rest_of_line ();
5162 .serialize.instruction
5165 dot_serialize (type
)
5168 insn_group_break (0, 0, 0);
5170 instruction_serialization ();
5172 data_serialization ();
5173 insn_group_break (0, 0, 0);
5174 demand_empty_rest_of_line ();
5177 /* select dv checking mode
5182 A stop is inserted when changing modes
5189 if (md
.manual_bundling
)
5190 as_warn (_("Directive invalid within a bundle"));
5192 if (type
== 'E' || type
== 'A')
5193 md
.mode_explicitly_set
= 0;
5195 md
.mode_explicitly_set
= 1;
5202 if (md
.explicit_mode
)
5203 insn_group_break (1, 0, 0);
5204 md
.explicit_mode
= 0;
5208 if (!md
.explicit_mode
)
5209 insn_group_break (1, 0, 0);
5210 md
.explicit_mode
= 1;
5214 if (md
.explicit_mode
!= md
.default_explicit_mode
)
5215 insn_group_break (1, 0, 0);
5216 md
.explicit_mode
= md
.default_explicit_mode
;
5217 md
.mode_explicitly_set
= 0;
5228 for (regno
= 0; regno
< 64; regno
++)
5230 if (mask
& ((valueT
) 1 << regno
))
5232 fprintf (stderr
, "%s p%d", comma
, regno
);
5239 .pred.rel.clear [p1 [,p2 [,...]]] (also .pred.rel "clear" or @clear)
5240 .pred.rel.imply p1, p2 (also .pred.rel "imply" or @imply)
5241 .pred.rel.mutex p1, p2 [,...] (also .pred.rel "mutex" or @mutex)
5242 .pred.safe_across_calls p1 [, p2 [,...]]
5251 int p1
= -1, p2
= -1;
5255 if (*input_line_pointer
== '"')
5258 char *form
= demand_copy_C_string (&len
);
5260 if (strcmp (form
, "mutex") == 0)
5262 else if (strcmp (form
, "clear") == 0)
5264 else if (strcmp (form
, "imply") == 0)
5266 obstack_free (¬es
, form
);
5268 else if (*input_line_pointer
== '@')
5270 char *form
= ++input_line_pointer
;
5271 char c
= get_symbol_end();
5273 if (strcmp (form
, "mutex") == 0)
5275 else if (strcmp (form
, "clear") == 0)
5277 else if (strcmp (form
, "imply") == 0)
5279 *input_line_pointer
= c
;
5283 as_bad (_("Missing predicate relation type"));
5284 ignore_rest_of_line ();
5289 as_bad (_("Unrecognized predicate relation type"));
5290 ignore_rest_of_line ();
5293 if (*input_line_pointer
== ',')
5294 ++input_line_pointer
;
5303 expressionS pr
, *pr1
, *pr2
;
5305 expression_and_evaluate (&pr
);
5306 if (pr
.X_op
== O_register
5307 && pr
.X_add_number
>= REG_P
5308 && pr
.X_add_number
<= REG_P
+ 63)
5310 regno
= pr
.X_add_number
- REG_P
;
5318 else if (type
!= 'i'
5319 && pr
.X_op
== O_subtract
5320 && (pr1
= symbol_get_value_expression (pr
.X_add_symbol
))
5321 && pr1
->X_op
== O_register
5322 && pr1
->X_add_number
>= REG_P
5323 && pr1
->X_add_number
<= REG_P
+ 63
5324 && (pr2
= symbol_get_value_expression (pr
.X_op_symbol
))
5325 && pr2
->X_op
== O_register
5326 && pr2
->X_add_number
>= REG_P
5327 && pr2
->X_add_number
<= REG_P
+ 63)
5332 regno
= pr1
->X_add_number
- REG_P
;
5333 stop
= pr2
->X_add_number
- REG_P
;
5336 as_bad (_("Bad register range"));
5337 ignore_rest_of_line ();
5340 bits
= ((bits
<< stop
) << 1) - (bits
<< regno
);
5341 count
+= stop
- regno
+ 1;
5345 as_bad (_("Predicate register expected"));
5346 ignore_rest_of_line ();
5350 as_warn (_("Duplicate predicate register ignored"));
5352 if (*input_line_pointer
!= ',')
5354 ++input_line_pointer
;
5363 clear_qp_mutex (mask
);
5364 clear_qp_implies (mask
, (valueT
) 0);
5367 if (count
!= 2 || p1
== -1 || p2
== -1)
5368 as_bad (_("Predicate source and target required"));
5369 else if (p1
== 0 || p2
== 0)
5370 as_bad (_("Use of p0 is not valid in this context"));
5372 add_qp_imply (p1
, p2
);
5377 as_bad (_("At least two PR arguments expected"));
5382 as_bad (_("Use of p0 is not valid in this context"));
5385 add_qp_mutex (mask
);
5388 /* note that we don't override any existing relations */
5391 as_bad (_("At least one PR argument expected"));
5396 fprintf (stderr
, "Safe across calls: ");
5397 print_prmask (mask
);
5398 fprintf (stderr
, "\n");
5400 qp_safe_across_calls
= mask
;
5403 demand_empty_rest_of_line ();
5406 /* .entry label [, label [, ...]]
5407 Hint to DV code that the given labels are to be considered entry points.
5408 Otherwise, only global labels are considered entry points. */
5412 int dummy ATTRIBUTE_UNUSED
;
5421 name
= input_line_pointer
;
5422 c
= get_symbol_end ();
5423 symbolP
= symbol_find_or_make (name
);
5425 err
= hash_insert (md
.entry_hash
, S_GET_NAME (symbolP
), (PTR
) symbolP
);
5427 as_fatal (_("Inserting \"%s\" into entry hint table failed: %s"),
5430 *input_line_pointer
= c
;
5432 c
= *input_line_pointer
;
5435 input_line_pointer
++;
5437 if (*input_line_pointer
== '\n')
5443 demand_empty_rest_of_line ();
5446 /* .mem.offset offset, base
5447 "base" is used to distinguish between offsets from a different base. */
5450 dot_mem_offset (dummy
)
5451 int dummy ATTRIBUTE_UNUSED
;
5453 md
.mem_offset
.hint
= 1;
5454 md
.mem_offset
.offset
= get_absolute_expression ();
5455 if (*input_line_pointer
!= ',')
5457 as_bad (_("Comma expected"));
5458 ignore_rest_of_line ();
5461 ++input_line_pointer
;
5462 md
.mem_offset
.base
= get_absolute_expression ();
5463 demand_empty_rest_of_line ();
5466 /* ia64-specific pseudo-ops: */
5467 const pseudo_typeS md_pseudo_table
[] =
5469 { "radix", dot_radix
, 0 },
5470 { "lcomm", s_lcomm_bytes
, 1 },
5471 { "loc", dot_loc
, 0 },
5472 { "bss", dot_special_section
, SPECIAL_SECTION_BSS
},
5473 { "sbss", dot_special_section
, SPECIAL_SECTION_SBSS
},
5474 { "sdata", dot_special_section
, SPECIAL_SECTION_SDATA
},
5475 { "rodata", dot_special_section
, SPECIAL_SECTION_RODATA
},
5476 { "comment", dot_special_section
, SPECIAL_SECTION_COMMENT
},
5477 { "ia_64.unwind", dot_special_section
, SPECIAL_SECTION_UNWIND
},
5478 { "ia_64.unwind_info", dot_special_section
, SPECIAL_SECTION_UNWIND_INFO
},
5479 { "init_array", dot_special_section
, SPECIAL_SECTION_INIT_ARRAY
},
5480 { "fini_array", dot_special_section
, SPECIAL_SECTION_FINI_ARRAY
},
5481 { "proc", dot_proc
, 0 },
5482 { "body", dot_body
, 0 },
5483 { "prologue", dot_prologue
, 0 },
5484 { "endp", dot_endp
, 0 },
5486 { "fframe", dot_fframe
, 0 },
5487 { "vframe", dot_vframe
, 0 },
5488 { "vframesp", dot_vframesp
, 0 },
5489 { "vframepsp", dot_vframesp
, 1 },
5490 { "save", dot_save
, 0 },
5491 { "restore", dot_restore
, 0 },
5492 { "restorereg", dot_restorereg
, 0 },
5493 { "restorereg.p", dot_restorereg
, 1 },
5494 { "handlerdata", dot_handlerdata
, 0 },
5495 { "unwentry", dot_unwentry
, 0 },
5496 { "altrp", dot_altrp
, 0 },
5497 { "savesp", dot_savemem
, 0 },
5498 { "savepsp", dot_savemem
, 1 },
5499 { "save.g", dot_saveg
, 0 },
5500 { "save.f", dot_savef
, 0 },
5501 { "save.b", dot_saveb
, 0 },
5502 { "save.gf", dot_savegf
, 0 },
5503 { "spill", dot_spill
, 0 },
5504 { "spillreg", dot_spillreg
, 0 },
5505 { "spillsp", dot_spillmem
, 0 },
5506 { "spillpsp", dot_spillmem
, 1 },
5507 { "spillreg.p", dot_spillreg
, 1 },
5508 { "spillsp.p", dot_spillmem
, ~0 },
5509 { "spillpsp.p", dot_spillmem
, ~1 },
5510 { "label_state", dot_label_state
, 0 },
5511 { "copy_state", dot_copy_state
, 0 },
5512 { "unwabi", dot_unwabi
, 0 },
5513 { "personality", dot_personality
, 0 },
5514 { "mii", dot_template
, 0x0 },
5515 { "mli", dot_template
, 0x2 }, /* old format, for compatibility */
5516 { "mlx", dot_template
, 0x2 },
5517 { "mmi", dot_template
, 0x4 },
5518 { "mfi", dot_template
, 0x6 },
5519 { "mmf", dot_template
, 0x7 },
5520 { "mib", dot_template
, 0x8 },
5521 { "mbb", dot_template
, 0x9 },
5522 { "bbb", dot_template
, 0xb },
5523 { "mmb", dot_template
, 0xc },
5524 { "mfb", dot_template
, 0xe },
5525 { "align", dot_align
, 0 },
5526 { "regstk", dot_regstk
, 0 },
5527 { "rotr", dot_rot
, DYNREG_GR
},
5528 { "rotf", dot_rot
, DYNREG_FR
},
5529 { "rotp", dot_rot
, DYNREG_PR
},
5530 { "lsb", dot_byteorder
, 0 },
5531 { "msb", dot_byteorder
, 1 },
5532 { "psr", dot_psr
, 0 },
5533 { "alias", dot_alias
, 0 },
5534 { "secalias", dot_alias
, 1 },
5535 { "ln", dot_ln
, 0 }, /* source line info (for debugging) */
5537 { "xdata1", dot_xdata
, 1 },
5538 { "xdata2", dot_xdata
, 2 },
5539 { "xdata4", dot_xdata
, 4 },
5540 { "xdata8", dot_xdata
, 8 },
5541 { "xdata16", dot_xdata
, 16 },
5542 { "xreal4", dot_xfloat_cons
, 'f' },
5543 { "xreal8", dot_xfloat_cons
, 'd' },
5544 { "xreal10", dot_xfloat_cons
, 'x' },
5545 { "xreal16", dot_xfloat_cons
, 'X' },
5546 { "xstring", dot_xstringer
, 0 },
5547 { "xstringz", dot_xstringer
, 1 },
5549 /* unaligned versions: */
5550 { "xdata2.ua", dot_xdata_ua
, 2 },
5551 { "xdata4.ua", dot_xdata_ua
, 4 },
5552 { "xdata8.ua", dot_xdata_ua
, 8 },
5553 { "xdata16.ua", dot_xdata_ua
, 16 },
5554 { "xreal4.ua", dot_xfloat_cons_ua
, 'f' },
5555 { "xreal8.ua", dot_xfloat_cons_ua
, 'd' },
5556 { "xreal10.ua", dot_xfloat_cons_ua
, 'x' },
5557 { "xreal16.ua", dot_xfloat_cons_ua
, 'X' },
5559 /* annotations/DV checking support */
5560 { "entry", dot_entry
, 0 },
5561 { "mem.offset", dot_mem_offset
, 0 },
5562 { "pred.rel", dot_pred_rel
, 0 },
5563 { "pred.rel.clear", dot_pred_rel
, 'c' },
5564 { "pred.rel.imply", dot_pred_rel
, 'i' },
5565 { "pred.rel.mutex", dot_pred_rel
, 'm' },
5566 { "pred.safe_across_calls", dot_pred_rel
, 's' },
5567 { "reg.val", dot_reg_val
, 0 },
5568 { "serialize.data", dot_serialize
, 0 },
5569 { "serialize.instruction", dot_serialize
, 1 },
5570 { "auto", dot_dv_mode
, 'a' },
5571 { "explicit", dot_dv_mode
, 'e' },
5572 { "default", dot_dv_mode
, 'd' },
5574 /* ??? These are needed to make gas/testsuite/gas/elf/ehopt.s work.
5575 IA-64 aligns data allocation pseudo-ops by default, so we have to
5576 tell it that these ones are supposed to be unaligned. Long term,
5577 should rewrite so that only IA-64 specific data allocation pseudo-ops
5578 are aligned by default. */
5579 {"2byte", stmt_cons_ua
, 2},
5580 {"4byte", stmt_cons_ua
, 4},
5581 {"8byte", stmt_cons_ua
, 8},
5586 static const struct pseudo_opcode
5589 void (*handler
) (int);
5594 /* these are more like pseudo-ops, but don't start with a dot */
5595 { "data1", cons
, 1 },
5596 { "data2", cons
, 2 },
5597 { "data4", cons
, 4 },
5598 { "data8", cons
, 8 },
5599 { "data16", cons
, 16 },
5600 { "real4", stmt_float_cons
, 'f' },
5601 { "real8", stmt_float_cons
, 'd' },
5602 { "real10", stmt_float_cons
, 'x' },
5603 { "real16", stmt_float_cons
, 'X' },
5604 { "string", stringer
, 0 },
5605 { "stringz", stringer
, 1 },
5607 /* unaligned versions: */
5608 { "data2.ua", stmt_cons_ua
, 2 },
5609 { "data4.ua", stmt_cons_ua
, 4 },
5610 { "data8.ua", stmt_cons_ua
, 8 },
5611 { "data16.ua", stmt_cons_ua
, 16 },
5612 { "real4.ua", float_cons
, 'f' },
5613 { "real8.ua", float_cons
, 'd' },
5614 { "real10.ua", float_cons
, 'x' },
5615 { "real16.ua", float_cons
, 'X' },
5618 /* Declare a register by creating a symbol for it and entering it in
5619 the symbol table. */
5622 declare_register (name
, regnum
)
5624 unsigned int regnum
;
5629 sym
= symbol_create (name
, reg_section
, regnum
, &zero_address_frag
);
5631 err
= hash_insert (md
.reg_hash
, S_GET_NAME (sym
), (PTR
) sym
);
5633 as_fatal ("Inserting \"%s\" into register table failed: %s",
5640 declare_register_set (prefix
, num_regs
, base_regnum
)
5642 unsigned int num_regs
;
5643 unsigned int base_regnum
;
5648 for (i
= 0; i
< num_regs
; ++i
)
5650 sprintf (name
, "%s%u", prefix
, i
);
5651 declare_register (name
, base_regnum
+ i
);
5656 operand_width (opnd
)
5657 enum ia64_opnd opnd
;
5659 const struct ia64_operand
*odesc
= &elf64_ia64_operands
[opnd
];
5660 unsigned int bits
= 0;
5664 for (i
= 0; i
< NELEMS (odesc
->field
) && odesc
->field
[i
].bits
; ++i
)
5665 bits
+= odesc
->field
[i
].bits
;
5670 static enum operand_match_result
5671 operand_match (idesc
, index
, e
)
5672 const struct ia64_opcode
*idesc
;
5676 enum ia64_opnd opnd
= idesc
->operands
[index
];
5677 int bits
, relocatable
= 0;
5678 struct insn_fix
*fix
;
5685 case IA64_OPND_AR_CCV
:
5686 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_AR
+ 32)
5687 return OPERAND_MATCH
;
5690 case IA64_OPND_AR_CSD
:
5691 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_AR
+ 25)
5692 return OPERAND_MATCH
;
5695 case IA64_OPND_AR_PFS
:
5696 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_AR
+ 64)
5697 return OPERAND_MATCH
;
5701 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_GR
+ 0)
5702 return OPERAND_MATCH
;
5706 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_IP
)
5707 return OPERAND_MATCH
;
5711 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_PR
)
5712 return OPERAND_MATCH
;
5715 case IA64_OPND_PR_ROT
:
5716 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_PR_ROT
)
5717 return OPERAND_MATCH
;
5721 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_PSR
)
5722 return OPERAND_MATCH
;
5725 case IA64_OPND_PSR_L
:
5726 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_PSR_L
)
5727 return OPERAND_MATCH
;
5730 case IA64_OPND_PSR_UM
:
5731 if (e
->X_op
== O_register
&& e
->X_add_number
== REG_PSR_UM
)
5732 return OPERAND_MATCH
;
5736 if (e
->X_op
== O_constant
)
5738 if (e
->X_add_number
== 1)
5739 return OPERAND_MATCH
;
5741 return OPERAND_OUT_OF_RANGE
;
5746 if (e
->X_op
== O_constant
)
5748 if (e
->X_add_number
== 8)
5749 return OPERAND_MATCH
;
5751 return OPERAND_OUT_OF_RANGE
;
5756 if (e
->X_op
== O_constant
)
5758 if (e
->X_add_number
== 16)
5759 return OPERAND_MATCH
;
5761 return OPERAND_OUT_OF_RANGE
;
5765 /* register operands: */
5768 if (e
->X_op
== O_register
&& e
->X_add_number
>= REG_AR
5769 && e
->X_add_number
< REG_AR
+ 128)
5770 return OPERAND_MATCH
;
5775 if (e
->X_op
== O_register
&& e
->X_add_number
>= REG_BR
5776 && e
->X_add_number
< REG_BR
+ 8)
5777 return OPERAND_MATCH
;
5781 if (e
->X_op
== O_register
&& e
->X_add_number
>= REG_CR
5782 && e
->X_add_number
< REG_CR
+ 128)
5783 return OPERAND_MATCH
;
5790 if (e
->X_op
== O_register
&& e
->X_add_number
>= REG_FR
5791 && e
->X_add_number
< REG_FR
+ 128)
5792 return OPERAND_MATCH
;
5797 if (e
->X_op
== O_register
&& e
->X_add_number
>= REG_P
5798 && e
->X_add_number
< REG_P
+ 64)
5799 return OPERAND_MATCH
;
5805 if (e
->X_op
== O_register
&& e
->X_add_number
>= REG_GR
5806 && e
->X_add_number
< REG_GR
+ 128)
5807 return OPERAND_MATCH
;
5810 case IA64_OPND_R3_2
:
5811 if (e
->X_op
== O_register
&& e
->X_add_number
>= REG_GR
)
5813 if (e
->X_add_number
< REG_GR
+ 4)
5814 return OPERAND_MATCH
;
5815 else if (e
->X_add_number
< REG_GR
+ 128)
5816 return OPERAND_OUT_OF_RANGE
;
5820 /* indirect operands: */
5821 case IA64_OPND_CPUID_R3
:
5822 case IA64_OPND_DBR_R3
:
5823 case IA64_OPND_DTR_R3
:
5824 case IA64_OPND_ITR_R3
:
5825 case IA64_OPND_IBR_R3
:
5826 case IA64_OPND_MSR_R3
:
5827 case IA64_OPND_PKR_R3
:
5828 case IA64_OPND_PMC_R3
:
5829 case IA64_OPND_PMD_R3
:
5830 case IA64_OPND_RR_R3
:
5831 if (e
->X_op
== O_index
&& e
->X_op_symbol
5832 && (S_GET_VALUE (e
->X_op_symbol
) - IND_CPUID
5833 == opnd
- IA64_OPND_CPUID_R3
))
5834 return OPERAND_MATCH
;
5838 if (e
->X_op
== O_index
&& !e
->X_op_symbol
)
5839 return OPERAND_MATCH
;
5842 /* immediate operands: */
5843 case IA64_OPND_CNT2a
:
5844 case IA64_OPND_LEN4
:
5845 case IA64_OPND_LEN6
:
5846 bits
= operand_width (idesc
->operands
[index
]);
5847 if (e
->X_op
== O_constant
)
5849 if ((bfd_vma
) (e
->X_add_number
- 1) < ((bfd_vma
) 1 << bits
))
5850 return OPERAND_MATCH
;
5852 return OPERAND_OUT_OF_RANGE
;
5856 case IA64_OPND_CNT2b
:
5857 if (e
->X_op
== O_constant
)
5859 if ((bfd_vma
) (e
->X_add_number
- 1) < 3)
5860 return OPERAND_MATCH
;
5862 return OPERAND_OUT_OF_RANGE
;
5866 case IA64_OPND_CNT2c
:
5867 val
= e
->X_add_number
;
5868 if (e
->X_op
== O_constant
)
5870 if ((val
== 0 || val
== 7 || val
== 15 || val
== 16))
5871 return OPERAND_MATCH
;
5873 return OPERAND_OUT_OF_RANGE
;
5878 /* SOR must be an integer multiple of 8 */
5879 if (e
->X_op
== O_constant
&& e
->X_add_number
& 0x7)
5880 return OPERAND_OUT_OF_RANGE
;
5883 if (e
->X_op
== O_constant
)
5885 if ((bfd_vma
) e
->X_add_number
<= 96)
5886 return OPERAND_MATCH
;
5888 return OPERAND_OUT_OF_RANGE
;
5892 case IA64_OPND_IMMU62
:
5893 if (e
->X_op
== O_constant
)
5895 if ((bfd_vma
) e
->X_add_number
< ((bfd_vma
) 1 << 62))
5896 return OPERAND_MATCH
;
5898 return OPERAND_OUT_OF_RANGE
;
5902 /* FIXME -- need 62-bit relocation type */
5903 as_bad (_("62-bit relocation not yet implemented"));
5907 case IA64_OPND_IMMU64
:
5908 if (e
->X_op
== O_symbol
|| e
->X_op
== O_pseudo_fixup
5909 || e
->X_op
== O_subtract
)
5911 fix
= CURR_SLOT
.fixup
+ CURR_SLOT
.num_fixups
;
5912 fix
->code
= BFD_RELOC_IA64_IMM64
;
5913 if (e
->X_op
!= O_subtract
)
5915 fix
->code
= ia64_gen_real_reloc_type (e
->X_op_symbol
, fix
->code
);
5916 if (e
->X_op
== O_pseudo_fixup
)
5920 fix
->opnd
= idesc
->operands
[index
];
5923 ++CURR_SLOT
.num_fixups
;
5924 return OPERAND_MATCH
;
5926 else if (e
->X_op
== O_constant
)
5927 return OPERAND_MATCH
;
5930 case IA64_OPND_CCNT5
:
5931 case IA64_OPND_CNT5
:
5932 case IA64_OPND_CNT6
:
5933 case IA64_OPND_CPOS6a
:
5934 case IA64_OPND_CPOS6b
:
5935 case IA64_OPND_CPOS6c
:
5936 case IA64_OPND_IMMU2
:
5937 case IA64_OPND_IMMU7a
:
5938 case IA64_OPND_IMMU7b
:
5939 case IA64_OPND_IMMU21
:
5940 case IA64_OPND_IMMU24
:
5941 case IA64_OPND_MBTYPE4
:
5942 case IA64_OPND_MHTYPE8
:
5943 case IA64_OPND_POS6
:
5944 bits
= operand_width (idesc
->operands
[index
]);
5945 if (e
->X_op
== O_constant
)
5947 if ((bfd_vma
) e
->X_add_number
< ((bfd_vma
) 1 << bits
))
5948 return OPERAND_MATCH
;
5950 return OPERAND_OUT_OF_RANGE
;
5954 case IA64_OPND_IMMU9
:
5955 bits
= operand_width (idesc
->operands
[index
]);
5956 if (e
->X_op
== O_constant
)
5958 if ((bfd_vma
) e
->X_add_number
< ((bfd_vma
) 1 << bits
))
5960 int lobits
= e
->X_add_number
& 0x3;
5961 if (((bfd_vma
) e
->X_add_number
& 0x3C) != 0 && lobits
== 0)
5962 e
->X_add_number
|= (bfd_vma
) 0x3;
5963 return OPERAND_MATCH
;
5966 return OPERAND_OUT_OF_RANGE
;
5970 case IA64_OPND_IMM44
:
5971 /* least 16 bits must be zero */
5972 if ((e
->X_add_number
& 0xffff) != 0)
5973 /* XXX technically, this is wrong: we should not be issuing warning
5974 messages until we're sure this instruction pattern is going to
5976 as_warn (_("lower 16 bits of mask ignored"));
5978 if (e
->X_op
== O_constant
)
5980 if (((e
->X_add_number
>= 0
5981 && (bfd_vma
) e
->X_add_number
< ((bfd_vma
) 1 << 44))
5982 || (e
->X_add_number
< 0
5983 && (bfd_vma
) -e
->X_add_number
<= ((bfd_vma
) 1 << 44))))
5986 if (e
->X_add_number
>= 0
5987 && (e
->X_add_number
& ((bfd_vma
) 1 << 43)) != 0)
5989 e
->X_add_number
|= ~(((bfd_vma
) 1 << 44) - 1);
5991 return OPERAND_MATCH
;
5994 return OPERAND_OUT_OF_RANGE
;
5998 case IA64_OPND_IMM17
:
5999 /* bit 0 is a don't care (pr0 is hardwired to 1) */
6000 if (e
->X_op
== O_constant
)
6002 if (((e
->X_add_number
>= 0
6003 && (bfd_vma
) e
->X_add_number
< ((bfd_vma
) 1 << 17))
6004 || (e
->X_add_number
< 0
6005 && (bfd_vma
) -e
->X_add_number
<= ((bfd_vma
) 1 << 17))))
6008 if (e
->X_add_number
>= 0
6009 && (e
->X_add_number
& ((bfd_vma
) 1 << 16)) != 0)
6011 e
->X_add_number
|= ~(((bfd_vma
) 1 << 17) - 1);
6013 return OPERAND_MATCH
;
6016 return OPERAND_OUT_OF_RANGE
;
6020 case IA64_OPND_IMM14
:
6021 case IA64_OPND_IMM22
:
6023 case IA64_OPND_IMM1
:
6024 case IA64_OPND_IMM8
:
6025 case IA64_OPND_IMM8U4
:
6026 case IA64_OPND_IMM8M1
:
6027 case IA64_OPND_IMM8M1U4
:
6028 case IA64_OPND_IMM8M1U8
:
6029 case IA64_OPND_IMM9a
:
6030 case IA64_OPND_IMM9b
:
6031 bits
= operand_width (idesc
->operands
[index
]);
6032 if (relocatable
&& (e
->X_op
== O_symbol
6033 || e
->X_op
== O_subtract
6034 || e
->X_op
== O_pseudo_fixup
))
6036 fix
= CURR_SLOT
.fixup
+ CURR_SLOT
.num_fixups
;
6038 if (idesc
->operands
[index
] == IA64_OPND_IMM14
)
6039 fix
->code
= BFD_RELOC_IA64_IMM14
;
6041 fix
->code
= BFD_RELOC_IA64_IMM22
;
6043 if (e
->X_op
!= O_subtract
)
6045 fix
->code
= ia64_gen_real_reloc_type (e
->X_op_symbol
, fix
->code
);
6046 if (e
->X_op
== O_pseudo_fixup
)
6050 fix
->opnd
= idesc
->operands
[index
];
6053 ++CURR_SLOT
.num_fixups
;
6054 return OPERAND_MATCH
;
6056 else if (e
->X_op
!= O_constant
6057 && ! (e
->X_op
== O_big
&& opnd
== IA64_OPND_IMM8M1U8
))
6058 return OPERAND_MISMATCH
;
6060 if (opnd
== IA64_OPND_IMM8M1U4
)
6062 /* Zero is not valid for unsigned compares that take an adjusted
6063 constant immediate range. */
6064 if (e
->X_add_number
== 0)
6065 return OPERAND_OUT_OF_RANGE
;
6067 /* Sign-extend 32-bit unsigned numbers, so that the following range
6068 checks will work. */
6069 val
= e
->X_add_number
;
6070 if (((val
& (~(bfd_vma
) 0 << 32)) == 0)
6071 && ((val
& ((bfd_vma
) 1 << 31)) != 0))
6072 val
= ((val
<< 32) >> 32);
6074 /* Check for 0x100000000. This is valid because
6075 0x100000000-1 is the same as ((uint32_t) -1). */
6076 if (val
== ((bfd_signed_vma
) 1 << 32))
6077 return OPERAND_MATCH
;
6081 else if (opnd
== IA64_OPND_IMM8M1U8
)
6083 /* Zero is not valid for unsigned compares that take an adjusted
6084 constant immediate range. */
6085 if (e
->X_add_number
== 0)
6086 return OPERAND_OUT_OF_RANGE
;
6088 /* Check for 0x10000000000000000. */
6089 if (e
->X_op
== O_big
)
6091 if (generic_bignum
[0] == 0
6092 && generic_bignum
[1] == 0
6093 && generic_bignum
[2] == 0
6094 && generic_bignum
[3] == 0
6095 && generic_bignum
[4] == 1)
6096 return OPERAND_MATCH
;
6098 return OPERAND_OUT_OF_RANGE
;
6101 val
= e
->X_add_number
- 1;
6103 else if (opnd
== IA64_OPND_IMM8M1
)
6104 val
= e
->X_add_number
- 1;
6105 else if (opnd
== IA64_OPND_IMM8U4
)
6107 /* Sign-extend 32-bit unsigned numbers, so that the following range
6108 checks will work. */
6109 val
= e
->X_add_number
;
6110 if (((val
& (~(bfd_vma
) 0 << 32)) == 0)
6111 && ((val
& ((bfd_vma
) 1 << 31)) != 0))
6112 val
= ((val
<< 32) >> 32);
6115 val
= e
->X_add_number
;
6117 if ((val
>= 0 && (bfd_vma
) val
< ((bfd_vma
) 1 << (bits
- 1)))
6118 || (val
< 0 && (bfd_vma
) -val
<= ((bfd_vma
) 1 << (bits
- 1))))
6119 return OPERAND_MATCH
;
6121 return OPERAND_OUT_OF_RANGE
;
6123 case IA64_OPND_INC3
:
6124 /* +/- 1, 4, 8, 16 */
6125 val
= e
->X_add_number
;
6128 if (e
->X_op
== O_constant
)
6130 if ((val
== 1 || val
== 4 || val
== 8 || val
== 16))
6131 return OPERAND_MATCH
;
6133 return OPERAND_OUT_OF_RANGE
;
6137 case IA64_OPND_TGT25
:
6138 case IA64_OPND_TGT25b
:
6139 case IA64_OPND_TGT25c
:
6140 case IA64_OPND_TGT64
:
6141 if (e
->X_op
== O_symbol
)
6143 fix
= CURR_SLOT
.fixup
+ CURR_SLOT
.num_fixups
;
6144 if (opnd
== IA64_OPND_TGT25
)
6145 fix
->code
= BFD_RELOC_IA64_PCREL21F
;
6146 else if (opnd
== IA64_OPND_TGT25b
)
6147 fix
->code
= BFD_RELOC_IA64_PCREL21M
;
6148 else if (opnd
== IA64_OPND_TGT25c
)
6149 fix
->code
= BFD_RELOC_IA64_PCREL21B
;
6150 else if (opnd
== IA64_OPND_TGT64
)
6151 fix
->code
= BFD_RELOC_IA64_PCREL60B
;
6155 fix
->code
= ia64_gen_real_reloc_type (e
->X_op_symbol
, fix
->code
);
6156 fix
->opnd
= idesc
->operands
[index
];
6159 ++CURR_SLOT
.num_fixups
;
6160 return OPERAND_MATCH
;
6162 case IA64_OPND_TAG13
:
6163 case IA64_OPND_TAG13b
:
6167 return OPERAND_MATCH
;
6170 fix
= CURR_SLOT
.fixup
+ CURR_SLOT
.num_fixups
;
6171 /* There are no external relocs for TAG13/TAG13b fields, so we
6172 create a dummy reloc. This will not live past md_apply_fix. */
6173 fix
->code
= BFD_RELOC_UNUSED
;
6174 fix
->code
= ia64_gen_real_reloc_type (e
->X_op_symbol
, fix
->code
);
6175 fix
->opnd
= idesc
->operands
[index
];
6178 ++CURR_SLOT
.num_fixups
;
6179 return OPERAND_MATCH
;
6186 case IA64_OPND_LDXMOV
:
6187 fix
= CURR_SLOT
.fixup
+ CURR_SLOT
.num_fixups
;
6188 fix
->code
= BFD_RELOC_IA64_LDXMOV
;
6189 fix
->opnd
= idesc
->operands
[index
];
6192 ++CURR_SLOT
.num_fixups
;
6193 return OPERAND_MATCH
;
6198 return OPERAND_MISMATCH
;
6202 parse_operand (e
, more
)
6208 memset (e
, 0, sizeof (*e
));
6211 expression_and_evaluate (e
);
6212 sep
= *input_line_pointer
;
6213 if (more
&& (sep
== ',' || sep
== more
))
6214 ++input_line_pointer
;
6218 /* Returns the next entry in the opcode table that matches the one in
6219 IDESC, and frees the entry in IDESC. If no matching entry is
6220 found, NULL is returned instead. */
6222 static struct ia64_opcode
*
6223 get_next_opcode (struct ia64_opcode
*idesc
)
6225 struct ia64_opcode
*next
= ia64_find_next_opcode (idesc
);
6226 ia64_free_opcode (idesc
);
6230 /* Parse the operands for the opcode and find the opcode variant that
6231 matches the specified operands, or NULL if no match is possible. */
6233 static struct ia64_opcode
*
6234 parse_operands (idesc
)
6235 struct ia64_opcode
*idesc
;
6237 int i
= 0, highest_unmatched_operand
, num_operands
= 0, num_outputs
= 0;
6238 int error_pos
, out_of_range_pos
, curr_out_of_range_pos
, sep
= 0;
6241 enum ia64_opnd expected_operand
= IA64_OPND_NIL
;
6242 enum operand_match_result result
;
6244 char *first_arg
= 0, *end
, *saved_input_pointer
;
6247 assert (strlen (idesc
->name
) <= 128);
6249 strcpy (mnemonic
, idesc
->name
);
6250 if (idesc
->operands
[2] == IA64_OPND_SOF
6251 || idesc
->operands
[1] == IA64_OPND_SOF
)
6253 /* To make the common idiom "alloc loc?=ar.pfs,0,1,0,0" work, we
6254 can't parse the first operand until we have parsed the
6255 remaining operands of the "alloc" instruction. */
6257 first_arg
= input_line_pointer
;
6258 end
= strchr (input_line_pointer
, '=');
6261 as_bad ("Expected separator `='");
6264 input_line_pointer
= end
+ 1;
6271 if (i
< NELEMS (CURR_SLOT
.opnd
))
6273 sep
= parse_operand (CURR_SLOT
.opnd
+ i
, '=');
6274 if (CURR_SLOT
.opnd
[i
].X_op
== O_absent
)
6281 sep
= parse_operand (&dummy
, '=');
6282 if (dummy
.X_op
== O_absent
)
6288 if (sep
!= '=' && sep
!= ',')
6293 if (num_outputs
> 0)
6294 as_bad ("Duplicate equal sign (=) in instruction");
6296 num_outputs
= i
+ 1;
6301 as_bad ("Illegal operand separator `%c'", sep
);
6305 if (idesc
->operands
[2] == IA64_OPND_SOF
6306 || idesc
->operands
[1] == IA64_OPND_SOF
)
6308 /* Map alloc r1=ar.pfs,i,l,o,r to alloc r1=ar.pfs,(i+l+o),(i+l),r.
6309 Note, however, that due to that mapping operand numbers in error
6310 messages for any of the constant operands will not be correct. */
6311 know (strcmp (idesc
->name
, "alloc") == 0);
6312 /* The first operand hasn't been parsed/initialized, yet (but
6313 num_operands intentionally doesn't account for that). */
6314 i
= num_operands
> 4 ? 2 : 1;
6315 #define FORCE_CONST(n) (CURR_SLOT.opnd[n].X_op == O_constant \
6316 ? CURR_SLOT.opnd[n].X_add_number \
6318 sof
= set_regstack (FORCE_CONST(i
),
6321 FORCE_CONST(i
+ 3));
6324 /* now we can parse the first arg: */
6325 saved_input_pointer
= input_line_pointer
;
6326 input_line_pointer
= first_arg
;
6327 sep
= parse_operand (CURR_SLOT
.opnd
+ 0, '=');
6329 --num_outputs
; /* force error */
6330 input_line_pointer
= saved_input_pointer
;
6332 CURR_SLOT
.opnd
[i
].X_add_number
= sof
;
6333 if (CURR_SLOT
.opnd
[i
+ 1].X_op
== O_constant
6334 && CURR_SLOT
.opnd
[i
+ 2].X_op
== O_constant
)
6335 CURR_SLOT
.opnd
[i
+ 1].X_add_number
6336 = sof
- CURR_SLOT
.opnd
[i
+ 2].X_add_number
;
6338 CURR_SLOT
.opnd
[i
+ 1].X_op
= O_illegal
;
6339 CURR_SLOT
.opnd
[i
+ 2] = CURR_SLOT
.opnd
[i
+ 3];
6342 highest_unmatched_operand
= -4;
6343 curr_out_of_range_pos
= -1;
6345 for (; idesc
; idesc
= get_next_opcode (idesc
))
6347 if (num_outputs
!= idesc
->num_outputs
)
6348 continue; /* mismatch in # of outputs */
6349 if (highest_unmatched_operand
< 0)
6350 highest_unmatched_operand
|= 1;
6351 if (num_operands
> NELEMS (idesc
->operands
)
6352 || (num_operands
< NELEMS (idesc
->operands
)
6353 && idesc
->operands
[num_operands
])
6354 || (num_operands
> 0 && !idesc
->operands
[num_operands
- 1]))
6355 continue; /* mismatch in number of arguments */
6356 if (highest_unmatched_operand
< 0)
6357 highest_unmatched_operand
|= 2;
6359 CURR_SLOT
.num_fixups
= 0;
6361 /* Try to match all operands. If we see an out-of-range operand,
6362 then continue trying to match the rest of the operands, since if
6363 the rest match, then this idesc will give the best error message. */
6365 out_of_range_pos
= -1;
6366 for (i
= 0; i
< num_operands
&& idesc
->operands
[i
]; ++i
)
6368 result
= operand_match (idesc
, i
, CURR_SLOT
.opnd
+ i
);
6369 if (result
!= OPERAND_MATCH
)
6371 if (result
!= OPERAND_OUT_OF_RANGE
)
6373 if (out_of_range_pos
< 0)
6374 /* remember position of the first out-of-range operand: */
6375 out_of_range_pos
= i
;
6379 /* If we did not match all operands, or if at least one operand was
6380 out-of-range, then this idesc does not match. Keep track of which
6381 idesc matched the most operands before failing. If we have two
6382 idescs that failed at the same position, and one had an out-of-range
6383 operand, then prefer the out-of-range operand. Thus if we have
6384 "add r0=0x1000000,r1" we get an error saying the constant is out
6385 of range instead of an error saying that the constant should have been
6388 if (i
!= num_operands
|| out_of_range_pos
>= 0)
6390 if (i
> highest_unmatched_operand
6391 || (i
== highest_unmatched_operand
6392 && out_of_range_pos
> curr_out_of_range_pos
))
6394 highest_unmatched_operand
= i
;
6395 if (out_of_range_pos
>= 0)
6397 expected_operand
= idesc
->operands
[out_of_range_pos
];
6398 error_pos
= out_of_range_pos
;
6402 expected_operand
= idesc
->operands
[i
];
6405 curr_out_of_range_pos
= out_of_range_pos
;
6414 if (expected_operand
)
6415 as_bad ("Operand %u of `%s' should be %s",
6416 error_pos
+ 1, mnemonic
,
6417 elf64_ia64_operands
[expected_operand
].desc
);
6418 else if (highest_unmatched_operand
< 0 && !(highest_unmatched_operand
& 1))
6419 as_bad ("Wrong number of output operands");
6420 else if (highest_unmatched_operand
< 0 && !(highest_unmatched_operand
& 2))
6421 as_bad ("Wrong number of input operands");
6423 as_bad ("Operand mismatch");
6427 /* Check that the instruction doesn't use
6428 - r0, f0, or f1 as output operands
6429 - the same predicate twice as output operands
6430 - r0 as address of a base update load or store
6431 - the same GR as output and address of a base update load
6432 - two even- or two odd-numbered FRs as output operands of a floating
6433 point parallel load.
6434 At most two (conflicting) output (or output-like) operands can exist,
6435 (floating point parallel loads have three outputs, but the base register,
6436 if updated, cannot conflict with the actual outputs). */
6438 for (i
= 0; i
< num_operands
; ++i
)
6443 switch (idesc
->operands
[i
])
6448 if (i
< num_outputs
)
6450 if (CURR_SLOT
.opnd
[i
].X_add_number
== REG_GR
)
6453 reg1
= CURR_SLOT
.opnd
[i
].X_add_number
;
6455 reg2
= CURR_SLOT
.opnd
[i
].X_add_number
;
6460 if (i
< num_outputs
)
6463 reg1
= CURR_SLOT
.opnd
[i
].X_add_number
;
6465 reg2
= CURR_SLOT
.opnd
[i
].X_add_number
;
6472 if (i
< num_outputs
)
6474 if (CURR_SLOT
.opnd
[i
].X_add_number
>= REG_FR
6475 && CURR_SLOT
.opnd
[i
].X_add_number
<= REG_FR
+ 1)
6478 regno
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_FR
;
6481 reg1
= CURR_SLOT
.opnd
[i
].X_add_number
;
6483 reg2
= CURR_SLOT
.opnd
[i
].X_add_number
;
6487 if (idesc
->flags
& IA64_OPCODE_POSTINC
)
6489 if (CURR_SLOT
.opnd
[i
].X_add_number
== REG_GR
)
6492 reg1
= CURR_SLOT
.opnd
[i
].X_add_number
;
6494 reg2
= CURR_SLOT
.opnd
[i
].X_add_number
;
6505 as_warn ("Invalid use of `%c%d' as output operand", reg_class
, regno
);
6508 as_warn ("Invalid use of `r%d' as base update address operand", regno
);
6514 if (reg1
>= REG_GR
&& reg1
<= REG_GR
+ 127)
6519 else if (reg1
>= REG_P
&& reg1
<= REG_P
+ 63)
6524 else if (reg1
>= REG_FR
&& reg1
<= REG_FR
+ 127)
6532 as_warn ("Invalid duplicate use of `%c%d'", reg_class
, reg1
);
6534 else if (((reg1
>= REG_FR
&& reg1
<= REG_FR
+ 31
6535 && reg2
>= REG_FR
&& reg2
<= REG_FR
+ 31)
6536 || (reg1
>= REG_FR
+ 32 && reg1
<= REG_FR
+ 127
6537 && reg2
>= REG_FR
+ 32 && reg2
<= REG_FR
+ 127))
6538 && ! ((reg1
^ reg2
) & 1))
6539 as_warn ("Invalid simultaneous use of `f%d' and `f%d'",
6540 reg1
- REG_FR
, reg2
- REG_FR
);
6541 else if ((reg1
>= REG_FR
&& reg1
<= REG_FR
+ 31
6542 && reg2
>= REG_FR
+ 32 && reg2
<= REG_FR
+ 127)
6543 || (reg1
>= REG_FR
+ 32 && reg1
<= REG_FR
+ 127
6544 && reg2
>= REG_FR
&& reg2
<= REG_FR
+ 31))
6545 as_warn ("Dangerous simultaneous use of `f%d' and `f%d'",
6546 reg1
- REG_FR
, reg2
- REG_FR
);
6551 build_insn (slot
, insnp
)
6555 const struct ia64_operand
*odesc
, *o2desc
;
6556 struct ia64_opcode
*idesc
= slot
->idesc
;
6562 insn
= idesc
->opcode
| slot
->qp_regno
;
6564 for (i
= 0; i
< NELEMS (idesc
->operands
) && idesc
->operands
[i
]; ++i
)
6566 if (slot
->opnd
[i
].X_op
== O_register
6567 || slot
->opnd
[i
].X_op
== O_constant
6568 || slot
->opnd
[i
].X_op
== O_index
)
6569 val
= slot
->opnd
[i
].X_add_number
;
6570 else if (slot
->opnd
[i
].X_op
== O_big
)
6572 /* This must be the value 0x10000000000000000. */
6573 assert (idesc
->operands
[i
] == IA64_OPND_IMM8M1U8
);
6579 switch (idesc
->operands
[i
])
6581 case IA64_OPND_IMMU64
:
6582 *insnp
++ = (val
>> 22) & 0x1ffffffffffLL
;
6583 insn
|= (((val
& 0x7f) << 13) | (((val
>> 7) & 0x1ff) << 27)
6584 | (((val
>> 16) & 0x1f) << 22) | (((val
>> 21) & 0x1) << 21)
6585 | (((val
>> 63) & 0x1) << 36));
6588 case IA64_OPND_IMMU62
:
6589 val
&= 0x3fffffffffffffffULL
;
6590 if (val
!= slot
->opnd
[i
].X_add_number
)
6591 as_warn (_("Value truncated to 62 bits"));
6592 *insnp
++ = (val
>> 21) & 0x1ffffffffffLL
;
6593 insn
|= (((val
& 0xfffff) << 6) | (((val
>> 20) & 0x1) << 36));
6596 case IA64_OPND_TGT64
:
6598 *insnp
++ = ((val
>> 20) & 0x7fffffffffLL
) << 2;
6599 insn
|= ((((val
>> 59) & 0x1) << 36)
6600 | (((val
>> 0) & 0xfffff) << 13));
6631 case IA64_OPND_R3_2
:
6632 case IA64_OPND_CPUID_R3
:
6633 case IA64_OPND_DBR_R3
:
6634 case IA64_OPND_DTR_R3
:
6635 case IA64_OPND_ITR_R3
:
6636 case IA64_OPND_IBR_R3
:
6638 case IA64_OPND_MSR_R3
:
6639 case IA64_OPND_PKR_R3
:
6640 case IA64_OPND_PMC_R3
:
6641 case IA64_OPND_PMD_R3
:
6642 case IA64_OPND_RR_R3
:
6650 odesc
= elf64_ia64_operands
+ idesc
->operands
[i
];
6651 err
= (*odesc
->insert
) (odesc
, val
, &insn
);
6653 as_bad_where (slot
->src_file
, slot
->src_line
,
6654 "Bad operand value: %s", err
);
6655 if (idesc
->flags
& IA64_OPCODE_PSEUDO
)
6657 if ((idesc
->flags
& IA64_OPCODE_F2_EQ_F3
)
6658 && odesc
== elf64_ia64_operands
+ IA64_OPND_F3
)
6660 o2desc
= elf64_ia64_operands
+ IA64_OPND_F2
;
6661 (*o2desc
->insert
) (o2desc
, val
, &insn
);
6663 if ((idesc
->flags
& IA64_OPCODE_LEN_EQ_64MCNT
)
6664 && (odesc
== elf64_ia64_operands
+ IA64_OPND_CPOS6a
6665 || odesc
== elf64_ia64_operands
+ IA64_OPND_POS6
))
6667 o2desc
= elf64_ia64_operands
+ IA64_OPND_LEN6
;
6668 (*o2desc
->insert
) (o2desc
, 64 - val
, &insn
);
6678 int manual_bundling_off
= 0, manual_bundling
= 0;
6679 enum ia64_unit required_unit
, insn_unit
= 0;
6680 enum ia64_insn_type type
[3], insn_type
;
6681 unsigned int template, orig_template
;
6682 bfd_vma insn
[3] = { -1, -1, -1 };
6683 struct ia64_opcode
*idesc
;
6684 int end_of_insn_group
= 0, user_template
= -1;
6685 int n
, i
, j
, first
, curr
, last_slot
;
6686 bfd_vma t0
= 0, t1
= 0;
6687 struct label_fix
*lfix
;
6688 bfd_boolean mark_label
;
6689 struct insn_fix
*ifix
;
6695 first
= (md
.curr_slot
+ NUM_SLOTS
- md
.num_slots_in_use
) % NUM_SLOTS
;
6696 know (first
>= 0 & first
< NUM_SLOTS
);
6697 n
= MIN (3, md
.num_slots_in_use
);
6699 /* Determine template: user user_template if specified, best match
6702 if (md
.slot
[first
].user_template
>= 0)
6703 user_template
= template = md
.slot
[first
].user_template
;
6706 /* Auto select appropriate template. */
6707 memset (type
, 0, sizeof (type
));
6709 for (i
= 0; i
< n
; ++i
)
6711 if (md
.slot
[curr
].label_fixups
&& i
!= 0)
6713 type
[i
] = md
.slot
[curr
].idesc
->type
;
6714 curr
= (curr
+ 1) % NUM_SLOTS
;
6716 template = best_template
[type
[0]][type
[1]][type
[2]];
6719 /* initialize instructions with appropriate nops: */
6720 for (i
= 0; i
< 3; ++i
)
6721 insn
[i
] = nop
[ia64_templ_desc
[template].exec_unit
[i
]];
6725 /* Check to see if this bundle is at an offset that is a multiple of 16-bytes
6726 from the start of the frag. */
6727 addr_mod
= frag_now_fix () & 15;
6728 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
6729 as_bad (_("instruction address is not a multiple of 16"));
6730 frag_now
->insn_addr
= addr_mod
;
6731 frag_now
->has_code
= 1;
6733 /* now fill in slots with as many insns as possible: */
6735 idesc
= md
.slot
[curr
].idesc
;
6736 end_of_insn_group
= 0;
6738 for (i
= 0; i
< 3 && md
.num_slots_in_use
> 0; ++i
)
6740 /* If we have unwind records, we may need to update some now. */
6741 unw_rec_list
*ptr
= md
.slot
[curr
].unwind_record
;
6742 unw_rec_list
*end_ptr
= NULL
;
6746 /* Find the last prologue/body record in the list for the current
6747 insn, and set the slot number for all records up to that point.
6748 This needs to be done now, because prologue/body records refer to
6749 the current point, not the point after the instruction has been
6750 issued. This matters because there may have been nops emitted
6751 meanwhile. Any non-prologue non-body record followed by a
6752 prologue/body record must also refer to the current point. */
6753 unw_rec_list
*last_ptr
;
6755 for (j
= 1; end_ptr
== NULL
&& j
< md
.num_slots_in_use
; ++j
)
6756 end_ptr
= md
.slot
[(curr
+ j
) % NUM_SLOTS
].unwind_record
;
6757 for (last_ptr
= NULL
; ptr
!= end_ptr
; ptr
= ptr
->next
)
6758 if (ptr
->r
.type
== prologue
|| ptr
->r
.type
== prologue_gr
6759 || ptr
->r
.type
== body
)
6763 /* Make last_ptr point one after the last prologue/body
6765 last_ptr
= last_ptr
->next
;
6766 for (ptr
= md
.slot
[curr
].unwind_record
; ptr
!= last_ptr
;
6769 ptr
->slot_number
= (unsigned long) f
+ i
;
6770 ptr
->slot_frag
= frag_now
;
6772 /* Remove the initialized records, so that we won't accidentally
6773 update them again if we insert a nop and continue. */
6774 md
.slot
[curr
].unwind_record
= last_ptr
;
6778 manual_bundling_off
= md
.slot
[curr
].manual_bundling_off
;
6779 if (md
.slot
[curr
].manual_bundling_on
)
6782 manual_bundling
= 1;
6784 break; /* Need to start a new bundle. */
6787 /* If this instruction specifies a template, then it must be the first
6788 instruction of a bundle. */
6789 if (curr
!= first
&& md
.slot
[curr
].user_template
>= 0)
6792 if (idesc
->flags
& IA64_OPCODE_SLOT2
)
6794 if (manual_bundling
&& !manual_bundling_off
)
6796 as_bad_where (md
.slot
[curr
].src_file
, md
.slot
[curr
].src_line
,
6797 "`%s' must be last in bundle", idesc
->name
);
6799 manual_bundling
= -1; /* Suppress meaningless post-loop errors. */
6803 if (idesc
->flags
& IA64_OPCODE_LAST
)
6806 unsigned int required_template
;
6808 /* If we need a stop bit after an M slot, our only choice is
6809 template 5 (M;;MI). If we need a stop bit after a B
6810 slot, our only choice is to place it at the end of the
6811 bundle, because the only available templates are MIB,
6812 MBB, BBB, MMB, and MFB. We don't handle anything other
6813 than M and B slots because these are the only kind of
6814 instructions that can have the IA64_OPCODE_LAST bit set. */
6815 required_template
= template;
6816 switch (idesc
->type
)
6820 required_template
= 5;
6828 as_bad_where (md
.slot
[curr
].src_file
, md
.slot
[curr
].src_line
,
6829 "Internal error: don't know how to force %s to end"
6830 "of instruction group", idesc
->name
);
6835 && (i
> required_slot
6836 || (required_slot
== 2 && !manual_bundling_off
)
6837 || (user_template
>= 0
6838 /* Changing from MMI to M;MI is OK. */
6839 && (template ^ required_template
) > 1)))
6841 as_bad_where (md
.slot
[curr
].src_file
, md
.slot
[curr
].src_line
,
6842 "`%s' must be last in instruction group",
6844 if (i
< 2 && required_slot
== 2 && !manual_bundling_off
)
6845 manual_bundling
= -1; /* Suppress meaningless post-loop errors. */
6847 if (required_slot
< i
)
6848 /* Can't fit this instruction. */
6852 if (required_template
!= template)
6854 /* If we switch the template, we need to reset the NOPs
6855 after slot i. The slot-types of the instructions ahead
6856 of i never change, so we don't need to worry about
6857 changing NOPs in front of this slot. */
6858 for (j
= i
; j
< 3; ++j
)
6859 insn
[j
] = nop
[ia64_templ_desc
[required_template
].exec_unit
[j
]];
6861 template = required_template
;
6863 if (curr
!= first
&& md
.slot
[curr
].label_fixups
)
6865 if (manual_bundling
)
6867 as_bad_where (md
.slot
[curr
].src_file
, md
.slot
[curr
].src_line
,
6868 "Label must be first in a bundle");
6869 manual_bundling
= -1; /* Suppress meaningless post-loop errors. */
6871 /* This insn must go into the first slot of a bundle. */
6875 if (end_of_insn_group
&& md
.num_slots_in_use
>= 1)
6877 /* We need an instruction group boundary in the middle of a
6878 bundle. See if we can switch to an other template with
6879 an appropriate boundary. */
6881 orig_template
= template;
6882 if (i
== 1 && (user_template
== 4
6883 || (user_template
< 0
6884 && (ia64_templ_desc
[template].exec_unit
[0]
6888 end_of_insn_group
= 0;
6890 else if (i
== 2 && (user_template
== 0
6891 || (user_template
< 0
6892 && (ia64_templ_desc
[template].exec_unit
[1]
6894 /* This test makes sure we don't switch the template if
6895 the next instruction is one that needs to be first in
6896 an instruction group. Since all those instructions are
6897 in the M group, there is no way such an instruction can
6898 fit in this bundle even if we switch the template. The
6899 reason we have to check for this is that otherwise we
6900 may end up generating "MI;;I M.." which has the deadly
6901 effect that the second M instruction is no longer the
6902 first in the group! --davidm 99/12/16 */
6903 && (idesc
->flags
& IA64_OPCODE_FIRST
) == 0)
6906 end_of_insn_group
= 0;
6909 && user_template
== 0
6910 && !(idesc
->flags
& IA64_OPCODE_FIRST
))
6911 /* Use the next slot. */
6913 else if (curr
!= first
)
6914 /* can't fit this insn */
6917 if (template != orig_template
)
6918 /* if we switch the template, we need to reset the NOPs
6919 after slot i. The slot-types of the instructions ahead
6920 of i never change, so we don't need to worry about
6921 changing NOPs in front of this slot. */
6922 for (j
= i
; j
< 3; ++j
)
6923 insn
[j
] = nop
[ia64_templ_desc
[template].exec_unit
[j
]];
6925 required_unit
= ia64_templ_desc
[template].exec_unit
[i
];
6927 /* resolve dynamic opcodes such as "break", "hint", and "nop": */
6928 if (idesc
->type
== IA64_TYPE_DYN
)
6930 enum ia64_opnd opnd1
, opnd2
;
6932 if ((strcmp (idesc
->name
, "nop") == 0)
6933 || (strcmp (idesc
->name
, "break") == 0))
6934 insn_unit
= required_unit
;
6935 else if (strcmp (idesc
->name
, "hint") == 0)
6937 insn_unit
= required_unit
;
6938 if (required_unit
== IA64_UNIT_B
)
6944 case hint_b_warning
:
6945 as_warn ("hint in B unit may be treated as nop");
6948 /* When manual bundling is off and there is no
6949 user template, we choose a different unit so
6950 that hint won't go into the current slot. We
6951 will fill the current bundle with nops and
6952 try to put hint into the next bundle. */
6953 if (!manual_bundling
&& user_template
< 0)
6954 insn_unit
= IA64_UNIT_I
;
6956 as_bad ("hint in B unit can't be used");
6961 else if (strcmp (idesc
->name
, "chk.s") == 0
6962 || strcmp (idesc
->name
, "mov") == 0)
6964 insn_unit
= IA64_UNIT_M
;
6965 if (required_unit
== IA64_UNIT_I
6966 || (required_unit
== IA64_UNIT_F
&& template == 6))
6967 insn_unit
= IA64_UNIT_I
;
6970 as_fatal ("emit_one_bundle: unexpected dynamic op");
6972 sprintf (mnemonic
, "%s.%c", idesc
->name
, "?imbfxx"[insn_unit
]);
6973 opnd1
= idesc
->operands
[0];
6974 opnd2
= idesc
->operands
[1];
6975 ia64_free_opcode (idesc
);
6976 idesc
= ia64_find_opcode (mnemonic
);
6977 /* moves to/from ARs have collisions */
6978 if (opnd1
== IA64_OPND_AR3
|| opnd2
== IA64_OPND_AR3
)
6980 while (idesc
!= NULL
6981 && (idesc
->operands
[0] != opnd1
6982 || idesc
->operands
[1] != opnd2
))
6983 idesc
= get_next_opcode (idesc
);
6985 md
.slot
[curr
].idesc
= idesc
;
6989 insn_type
= idesc
->type
;
6990 insn_unit
= IA64_UNIT_NIL
;
6994 if (required_unit
== IA64_UNIT_I
|| required_unit
== IA64_UNIT_M
)
6995 insn_unit
= required_unit
;
6997 case IA64_TYPE_X
: insn_unit
= IA64_UNIT_L
; break;
6998 case IA64_TYPE_I
: insn_unit
= IA64_UNIT_I
; break;
6999 case IA64_TYPE_M
: insn_unit
= IA64_UNIT_M
; break;
7000 case IA64_TYPE_B
: insn_unit
= IA64_UNIT_B
; break;
7001 case IA64_TYPE_F
: insn_unit
= IA64_UNIT_F
; break;
7006 if (insn_unit
!= required_unit
)
7007 continue; /* Try next slot. */
7009 /* Now is a good time to fix up the labels for this insn. */
7011 for (lfix
= md
.slot
[curr
].label_fixups
; lfix
; lfix
= lfix
->next
)
7013 S_SET_VALUE (lfix
->sym
, frag_now_fix () - 16);
7014 symbol_set_frag (lfix
->sym
, frag_now
);
7015 mark_label
|= lfix
->dw2_mark_labels
;
7017 for (lfix
= md
.slot
[curr
].tag_fixups
; lfix
; lfix
= lfix
->next
)
7019 S_SET_VALUE (lfix
->sym
, frag_now_fix () - 16 + i
);
7020 symbol_set_frag (lfix
->sym
, frag_now
);
7023 if (debug_type
== DEBUG_DWARF2
7024 || md
.slot
[curr
].loc_directive_seen
7027 bfd_vma addr
= frag_now
->fr_address
+ frag_now_fix () - 16 + i
;
7029 md
.slot
[curr
].loc_directive_seen
= 0;
7031 md
.slot
[curr
].debug_line
.flags
|= DWARF2_FLAG_BASIC_BLOCK
;
7033 dwarf2_gen_line_info (addr
, &md
.slot
[curr
].debug_line
);
7036 build_insn (md
.slot
+ curr
, insn
+ i
);
7038 ptr
= md
.slot
[curr
].unwind_record
;
7041 /* Set slot numbers for all remaining unwind records belonging to the
7042 current insn. There can not be any prologue/body unwind records
7044 for (; ptr
!= end_ptr
; ptr
= ptr
->next
)
7046 ptr
->slot_number
= (unsigned long) f
+ i
;
7047 ptr
->slot_frag
= frag_now
;
7049 md
.slot
[curr
].unwind_record
= NULL
;
7052 if (required_unit
== IA64_UNIT_L
)
7055 /* skip one slot for long/X-unit instructions */
7058 --md
.num_slots_in_use
;
7061 for (j
= 0; j
< md
.slot
[curr
].num_fixups
; ++j
)
7063 ifix
= md
.slot
[curr
].fixup
+ j
;
7064 fix
= fix_new_exp (frag_now
, frag_now_fix () - 16 + i
, 8,
7065 &ifix
->expr
, ifix
->is_pcrel
, ifix
->code
);
7066 fix
->tc_fix_data
.opnd
= ifix
->opnd
;
7067 fix
->fx_plt
= (fix
->fx_r_type
== BFD_RELOC_IA64_PLTOFF22
);
7068 fix
->fx_file
= md
.slot
[curr
].src_file
;
7069 fix
->fx_line
= md
.slot
[curr
].src_line
;
7072 end_of_insn_group
= md
.slot
[curr
].end_of_insn_group
;
7075 ia64_free_opcode (md
.slot
[curr
].idesc
);
7076 memset (md
.slot
+ curr
, 0, sizeof (md
.slot
[curr
]));
7077 md
.slot
[curr
].user_template
= -1;
7079 if (manual_bundling_off
)
7081 manual_bundling
= 0;
7084 curr
= (curr
+ 1) % NUM_SLOTS
;
7085 idesc
= md
.slot
[curr
].idesc
;
7088 /* A user template was specified, but the first following instruction did
7089 not fit. This can happen with or without manual bundling. */
7090 if (md
.num_slots_in_use
> 0 && last_slot
< 0)
7092 as_bad_where (md
.slot
[curr
].src_file
, md
.slot
[curr
].src_line
,
7093 "`%s' does not fit into %s template",
7094 idesc
->name
, ia64_templ_desc
[template].name
);
7095 /* Drop first insn so we don't livelock. */
7096 --md
.num_slots_in_use
;
7097 know (curr
== first
);
7098 ia64_free_opcode (md
.slot
[curr
].idesc
);
7099 memset (md
.slot
+ curr
, 0, sizeof (md
.slot
[curr
]));
7100 md
.slot
[curr
].user_template
= -1;
7102 else if (manual_bundling
> 0)
7104 if (md
.num_slots_in_use
> 0)
7107 as_bad_where (md
.slot
[curr
].src_file
, md
.slot
[curr
].src_line
,
7108 "`%s' does not fit into bundle", idesc
->name
);
7115 else if (last_slot
== 0)
7116 where
= "slots 2 or 3";
7119 as_bad_where (md
.slot
[curr
].src_file
, md
.slot
[curr
].src_line
,
7120 "`%s' can't go in %s of %s template",
7121 idesc
->name
, where
, ia64_templ_desc
[template].name
);
7125 as_bad_where (md
.slot
[curr
].src_file
, md
.slot
[curr
].src_line
,
7126 "Missing '}' at end of file");
7129 know (md
.num_slots_in_use
< NUM_SLOTS
);
7131 t0
= end_of_insn_group
| (template << 1) | (insn
[0] << 5) | (insn
[1] << 46);
7132 t1
= ((insn
[1] >> 18) & 0x7fffff) | (insn
[2] << 23);
7134 number_to_chars_littleendian (f
+ 0, t0
, 8);
7135 number_to_chars_littleendian (f
+ 8, t1
, 8);
7139 md_parse_option (c
, arg
)
7146 /* Switches from the Intel assembler. */
7148 if (strcmp (arg
, "ilp64") == 0
7149 || strcmp (arg
, "lp64") == 0
7150 || strcmp (arg
, "p64") == 0)
7152 md
.flags
|= EF_IA_64_ABI64
;
7154 else if (strcmp (arg
, "ilp32") == 0)
7156 md
.flags
&= ~EF_IA_64_ABI64
;
7158 else if (strcmp (arg
, "le") == 0)
7160 md
.flags
&= ~EF_IA_64_BE
;
7161 default_big_endian
= 0;
7163 else if (strcmp (arg
, "be") == 0)
7165 md
.flags
|= EF_IA_64_BE
;
7166 default_big_endian
= 1;
7168 else if (strncmp (arg
, "unwind-check=", 13) == 0)
7171 if (strcmp (arg
, "warning") == 0)
7172 md
.unwind_check
= unwind_check_warning
;
7173 else if (strcmp (arg
, "error") == 0)
7174 md
.unwind_check
= unwind_check_error
;
7178 else if (strncmp (arg
, "hint.b=", 7) == 0)
7181 if (strcmp (arg
, "ok") == 0)
7182 md
.hint_b
= hint_b_ok
;
7183 else if (strcmp (arg
, "warning") == 0)
7184 md
.hint_b
= hint_b_warning
;
7185 else if (strcmp (arg
, "error") == 0)
7186 md
.hint_b
= hint_b_error
;
7190 else if (strncmp (arg
, "tune=", 5) == 0)
7193 if (strcmp (arg
, "itanium1") == 0)
7195 else if (strcmp (arg
, "itanium2") == 0)
7205 if (strcmp (arg
, "so") == 0)
7207 /* Suppress signon message. */
7209 else if (strcmp (arg
, "pi") == 0)
7211 /* Reject privileged instructions. FIXME */
7213 else if (strcmp (arg
, "us") == 0)
7215 /* Allow union of signed and unsigned range. FIXME */
7217 else if (strcmp (arg
, "close_fcalls") == 0)
7219 /* Do not resolve global function calls. */
7226 /* temp[="prefix"] Insert temporary labels into the object file
7227 symbol table prefixed by "prefix".
7228 Default prefix is ":temp:".
7233 /* indirect=<tgt> Assume unannotated indirect branches behavior
7234 according to <tgt> --
7235 exit: branch out from the current context (default)
7236 labels: all labels in context may be branch targets
7238 if (strncmp (arg
, "indirect=", 9) != 0)
7243 /* -X conflicts with an ignored option, use -x instead */
7245 if (!arg
|| strcmp (arg
, "explicit") == 0)
7247 /* set default mode to explicit */
7248 md
.default_explicit_mode
= 1;
7251 else if (strcmp (arg
, "auto") == 0)
7253 md
.default_explicit_mode
= 0;
7255 else if (strcmp (arg
, "none") == 0)
7259 else if (strcmp (arg
, "debug") == 0)
7263 else if (strcmp (arg
, "debugx") == 0)
7265 md
.default_explicit_mode
= 1;
7268 else if (strcmp (arg
, "debugn") == 0)
7275 as_bad (_("Unrecognized option '-x%s'"), arg
);
7280 /* nops Print nops statistics. */
7283 /* GNU specific switches for gcc. */
7284 case OPTION_MCONSTANT_GP
:
7285 md
.flags
|= EF_IA_64_CONS_GP
;
7288 case OPTION_MAUTO_PIC
:
7289 md
.flags
|= EF_IA_64_NOFUNCDESC_CONS_GP
;
7300 md_show_usage (stream
)
7305 --mconstant-gp mark output file as using the constant-GP model\n\
7306 (sets ELF header flag EF_IA_64_CONS_GP)\n\
7307 --mauto-pic mark output file as using the constant-GP model\n\
7308 without function descriptors (sets ELF header flag\n\
7309 EF_IA_64_NOFUNCDESC_CONS_GP)\n\
7310 -milp32|-milp64|-mlp64|-mp64 select data model (default -mlp64)\n\
7311 -mle | -mbe select little- or big-endian byte order (default -mle)\n\
7312 -mtune=[itanium1|itanium2]\n\
7313 tune for a specific CPU (default -mtune=itanium2)\n\
7314 -munwind-check=[warning|error]\n\
7315 unwind directive check (default -munwind-check=warning)\n\
7316 -mhint.b=[ok|warning|error]\n\
7317 hint.b check (default -mhint.b=error)\n\
7318 -x | -xexplicit turn on dependency violation checking\n\
7319 -xauto automagically remove dependency violations (default)\n\
7320 -xnone turn off dependency violation checking\n\
7321 -xdebug debug dependency violation checker\n\
7322 -xdebugn debug dependency violation checker but turn off\n\
7323 dependency violation checking\n\
7324 -xdebugx debug dependency violation checker and turn on\n\
7325 dependency violation checking\n"),
7330 ia64_after_parse_args ()
7332 if (debug_type
== DEBUG_STABS
)
7333 as_fatal (_("--gstabs is not supported for ia64"));
7336 /* Return true if TYPE fits in TEMPL at SLOT. */
7339 match (int templ
, int type
, int slot
)
7341 enum ia64_unit unit
;
7344 unit
= ia64_templ_desc
[templ
].exec_unit
[slot
];
7347 case IA64_TYPE_DYN
: result
= 1; break; /* for nop and break */
7349 result
= (unit
== IA64_UNIT_I
|| unit
== IA64_UNIT_M
);
7351 case IA64_TYPE_X
: result
= (unit
== IA64_UNIT_L
); break;
7352 case IA64_TYPE_I
: result
= (unit
== IA64_UNIT_I
); break;
7353 case IA64_TYPE_M
: result
= (unit
== IA64_UNIT_M
); break;
7354 case IA64_TYPE_B
: result
= (unit
== IA64_UNIT_B
); break;
7355 case IA64_TYPE_F
: result
= (unit
== IA64_UNIT_F
); break;
7356 default: result
= 0; break;
7361 /* For Itanium 1, add a bit of extra goodness if a nop of type F or B would fit
7362 in TEMPL at SLOT. For Itanium 2, add a bit of extra goodness if a nop of
7363 type M or I would fit in TEMPL at SLOT. */
7366 extra_goodness (int templ
, int slot
)
7371 if (slot
== 1 && match (templ
, IA64_TYPE_F
, slot
))
7373 else if (slot
== 2 && match (templ
, IA64_TYPE_B
, slot
))
7379 if (match (templ
, IA64_TYPE_M
, slot
)
7380 || match (templ
, IA64_TYPE_I
, slot
))
7381 /* Favor M- and I-unit NOPs. We definitely want to avoid
7382 F-unit and B-unit may cause split-issue or less-than-optimal
7383 branch-prediction. */
7394 /* This function is called once, at assembler startup time. It sets
7395 up all the tables, etc. that the MD part of the assembler will need
7396 that can be determined before arguments are parsed. */
7400 int i
, j
, k
, t
, goodness
, best
, ok
;
7405 md
.explicit_mode
= md
.default_explicit_mode
;
7407 bfd_set_section_alignment (stdoutput
, text_section
, 4);
7409 /* Make sure function pointers get initialized. */
7410 target_big_endian
= -1;
7411 dot_byteorder (default_big_endian
);
7413 alias_hash
= hash_new ();
7414 alias_name_hash
= hash_new ();
7415 secalias_hash
= hash_new ();
7416 secalias_name_hash
= hash_new ();
7418 pseudo_func
[FUNC_DTP_MODULE
].u
.sym
=
7419 symbol_new (".<dtpmod>", undefined_section
, FUNC_DTP_MODULE
,
7420 &zero_address_frag
);
7422 pseudo_func
[FUNC_DTP_RELATIVE
].u
.sym
=
7423 symbol_new (".<dtprel>", undefined_section
, FUNC_DTP_RELATIVE
,
7424 &zero_address_frag
);
7426 pseudo_func
[FUNC_FPTR_RELATIVE
].u
.sym
=
7427 symbol_new (".<fptr>", undefined_section
, FUNC_FPTR_RELATIVE
,
7428 &zero_address_frag
);
7430 pseudo_func
[FUNC_GP_RELATIVE
].u
.sym
=
7431 symbol_new (".<gprel>", undefined_section
, FUNC_GP_RELATIVE
,
7432 &zero_address_frag
);
7434 pseudo_func
[FUNC_LT_RELATIVE
].u
.sym
=
7435 symbol_new (".<ltoff>", undefined_section
, FUNC_LT_RELATIVE
,
7436 &zero_address_frag
);
7438 pseudo_func
[FUNC_LT_RELATIVE_X
].u
.sym
=
7439 symbol_new (".<ltoffx>", undefined_section
, FUNC_LT_RELATIVE_X
,
7440 &zero_address_frag
);
7442 pseudo_func
[FUNC_PC_RELATIVE
].u
.sym
=
7443 symbol_new (".<pcrel>", undefined_section
, FUNC_PC_RELATIVE
,
7444 &zero_address_frag
);
7446 pseudo_func
[FUNC_PLT_RELATIVE
].u
.sym
=
7447 symbol_new (".<pltoff>", undefined_section
, FUNC_PLT_RELATIVE
,
7448 &zero_address_frag
);
7450 pseudo_func
[FUNC_SEC_RELATIVE
].u
.sym
=
7451 symbol_new (".<secrel>", undefined_section
, FUNC_SEC_RELATIVE
,
7452 &zero_address_frag
);
7454 pseudo_func
[FUNC_SEG_RELATIVE
].u
.sym
=
7455 symbol_new (".<segrel>", undefined_section
, FUNC_SEG_RELATIVE
,
7456 &zero_address_frag
);
7458 pseudo_func
[FUNC_TP_RELATIVE
].u
.sym
=
7459 symbol_new (".<tprel>", undefined_section
, FUNC_TP_RELATIVE
,
7460 &zero_address_frag
);
7462 pseudo_func
[FUNC_LTV_RELATIVE
].u
.sym
=
7463 symbol_new (".<ltv>", undefined_section
, FUNC_LTV_RELATIVE
,
7464 &zero_address_frag
);
7466 pseudo_func
[FUNC_LT_FPTR_RELATIVE
].u
.sym
=
7467 symbol_new (".<ltoff.fptr>", undefined_section
, FUNC_LT_FPTR_RELATIVE
,
7468 &zero_address_frag
);
7470 pseudo_func
[FUNC_LT_DTP_MODULE
].u
.sym
=
7471 symbol_new (".<ltoff.dtpmod>", undefined_section
, FUNC_LT_DTP_MODULE
,
7472 &zero_address_frag
);
7474 pseudo_func
[FUNC_LT_DTP_RELATIVE
].u
.sym
=
7475 symbol_new (".<ltoff.dptrel>", undefined_section
, FUNC_LT_DTP_RELATIVE
,
7476 &zero_address_frag
);
7478 pseudo_func
[FUNC_LT_TP_RELATIVE
].u
.sym
=
7479 symbol_new (".<ltoff.tprel>", undefined_section
, FUNC_LT_TP_RELATIVE
,
7480 &zero_address_frag
);
7482 pseudo_func
[FUNC_IPLT_RELOC
].u
.sym
=
7483 symbol_new (".<iplt>", undefined_section
, FUNC_IPLT_RELOC
,
7484 &zero_address_frag
);
7486 if (md
.tune
!= itanium1
)
7488 /* Convert MFI NOPs bundles into MMI NOPs bundles. */
7490 le_nop_stop
[0] = 0x9;
7493 /* Compute the table of best templates. We compute goodness as a
7494 base 4 value, in which each match counts for 3. Match-failures
7495 result in NOPs and we use extra_goodness() to pick the execution
7496 units that are best suited for issuing the NOP. */
7497 for (i
= 0; i
< IA64_NUM_TYPES
; ++i
)
7498 for (j
= 0; j
< IA64_NUM_TYPES
; ++j
)
7499 for (k
= 0; k
< IA64_NUM_TYPES
; ++k
)
7502 for (t
= 0; t
< NELEMS (ia64_templ_desc
); ++t
)
7505 if (match (t
, i
, 0))
7507 if (match (t
, j
, 1))
7509 if ((t
== 2 && j
== IA64_TYPE_X
) || match (t
, k
, 2))
7510 goodness
= 3 + 3 + 3;
7512 goodness
= 3 + 3 + extra_goodness (t
, 2);
7514 else if (match (t
, j
, 2))
7515 goodness
= 3 + 3 + extra_goodness (t
, 1);
7519 goodness
+= extra_goodness (t
, 1);
7520 goodness
+= extra_goodness (t
, 2);
7523 else if (match (t
, i
, 1))
7525 if ((t
== 2 && i
== IA64_TYPE_X
) || match (t
, j
, 2))
7528 goodness
= 3 + extra_goodness (t
, 2);
7530 else if (match (t
, i
, 2))
7531 goodness
= 3 + extra_goodness (t
, 1);
7533 if (goodness
> best
)
7536 best_template
[i
][j
][k
] = t
;
7541 #ifdef DEBUG_TEMPLATES
7542 /* For debugging changes to the best_template calculations. We don't care
7543 about combinations with invalid instructions, so start the loops at 1. */
7544 for (i
= 0; i
< IA64_NUM_TYPES
; ++i
)
7545 for (j
= 0; j
< IA64_NUM_TYPES
; ++j
)
7546 for (k
= 0; k
< IA64_NUM_TYPES
; ++k
)
7548 char type_letter
[IA64_NUM_TYPES
] = { 'n', 'a', 'i', 'm', 'b', 'f',
7550 fprintf (stderr
, "%c%c%c %s\n", type_letter
[i
], type_letter
[j
],
7552 ia64_templ_desc
[best_template
[i
][j
][k
]].name
);
7556 for (i
= 0; i
< NUM_SLOTS
; ++i
)
7557 md
.slot
[i
].user_template
= -1;
7559 md
.pseudo_hash
= hash_new ();
7560 for (i
= 0; i
< NELEMS (pseudo_opcode
); ++i
)
7562 err
= hash_insert (md
.pseudo_hash
, pseudo_opcode
[i
].name
,
7563 (void *) (pseudo_opcode
+ i
));
7565 as_fatal ("ia64.md_begin: can't hash `%s': %s",
7566 pseudo_opcode
[i
].name
, err
);
7569 md
.reg_hash
= hash_new ();
7570 md
.dynreg_hash
= hash_new ();
7571 md
.const_hash
= hash_new ();
7572 md
.entry_hash
= hash_new ();
7574 /* general registers: */
7575 declare_register_set ("r", 128, REG_GR
);
7576 declare_register ("gp", REG_GR
+ 1);
7577 declare_register ("sp", REG_GR
+ 12);
7578 declare_register ("tp", REG_GR
+ 13);
7579 declare_register_set ("ret", 4, REG_GR
+ 8);
7581 /* floating point registers: */
7582 declare_register_set ("f", 128, REG_FR
);
7583 declare_register_set ("farg", 8, REG_FR
+ 8);
7584 declare_register_set ("fret", 8, REG_FR
+ 8);
7586 /* branch registers: */
7587 declare_register_set ("b", 8, REG_BR
);
7588 declare_register ("rp", REG_BR
+ 0);
7590 /* predicate registers: */
7591 declare_register_set ("p", 64, REG_P
);
7592 declare_register ("pr", REG_PR
);
7593 declare_register ("pr.rot", REG_PR_ROT
);
7595 /* application registers: */
7596 declare_register_set ("ar", 128, REG_AR
);
7597 for (i
= 0; i
< NELEMS (ar
); ++i
)
7598 declare_register (ar
[i
].name
, REG_AR
+ ar
[i
].regnum
);
7600 /* control registers: */
7601 declare_register_set ("cr", 128, REG_CR
);
7602 for (i
= 0; i
< NELEMS (cr
); ++i
)
7603 declare_register (cr
[i
].name
, REG_CR
+ cr
[i
].regnum
);
7605 declare_register ("ip", REG_IP
);
7606 declare_register ("cfm", REG_CFM
);
7607 declare_register ("psr", REG_PSR
);
7608 declare_register ("psr.l", REG_PSR_L
);
7609 declare_register ("psr.um", REG_PSR_UM
);
7611 for (i
= 0; i
< NELEMS (indirect_reg
); ++i
)
7613 unsigned int regnum
= indirect_reg
[i
].regnum
;
7615 md
.indregsym
[regnum
- IND_CPUID
] = declare_register (indirect_reg
[i
].name
, regnum
);
7618 /* pseudo-registers used to specify unwind info: */
7619 declare_register ("psp", REG_PSP
);
7621 for (i
= 0; i
< NELEMS (const_bits
); ++i
)
7623 err
= hash_insert (md
.const_hash
, const_bits
[i
].name
,
7624 (PTR
) (const_bits
+ i
));
7626 as_fatal ("Inserting \"%s\" into constant hash table failed: %s",
7630 /* Set the architecture and machine depending on defaults and command line
7632 if (md
.flags
& EF_IA_64_ABI64
)
7633 ok
= bfd_set_arch_mach (stdoutput
, bfd_arch_ia64
, bfd_mach_ia64_elf64
);
7635 ok
= bfd_set_arch_mach (stdoutput
, bfd_arch_ia64
, bfd_mach_ia64_elf32
);
7638 as_warn (_("Could not set architecture and machine"));
7640 /* Set the pointer size and pointer shift size depending on md.flags */
7642 if (md
.flags
& EF_IA_64_ABI64
)
7644 md
.pointer_size
= 8; /* pointers are 8 bytes */
7645 md
.pointer_size_shift
= 3; /* alignment is 8 bytes = 2^2 */
7649 md
.pointer_size
= 4; /* pointers are 4 bytes */
7650 md
.pointer_size_shift
= 2; /* alignment is 4 bytes = 2^2 */
7653 md
.mem_offset
.hint
= 0;
7656 md
.entry_labels
= NULL
;
7659 /* Set the default options in md. Cannot do this in md_begin because
7660 that is called after md_parse_option which is where we set the
7661 options in md based on command line options. */
7664 ia64_init (argc
, argv
)
7665 int argc ATTRIBUTE_UNUSED
;
7666 char **argv ATTRIBUTE_UNUSED
;
7668 md
.flags
= MD_FLAGS_DEFAULT
;
7670 /* FIXME: We should change it to unwind_check_error someday. */
7671 md
.unwind_check
= unwind_check_warning
;
7672 md
.hint_b
= hint_b_error
;
7676 /* Return a string for the target object file format. */
7679 ia64_target_format ()
7681 if (OUTPUT_FLAVOR
== bfd_target_elf_flavour
)
7683 if (md
.flags
& EF_IA_64_BE
)
7685 if (md
.flags
& EF_IA_64_ABI64
)
7686 #if defined(TE_AIX50)
7687 return "elf64-ia64-aix-big";
7688 #elif defined(TE_HPUX)
7689 return "elf64-ia64-hpux-big";
7691 return "elf64-ia64-big";
7694 #if defined(TE_AIX50)
7695 return "elf32-ia64-aix-big";
7696 #elif defined(TE_HPUX)
7697 return "elf32-ia64-hpux-big";
7699 return "elf32-ia64-big";
7704 if (md
.flags
& EF_IA_64_ABI64
)
7706 return "elf64-ia64-aix-little";
7708 return "elf64-ia64-little";
7712 return "elf32-ia64-aix-little";
7714 return "elf32-ia64-little";
7719 return "unknown-format";
7723 ia64_end_of_source ()
7725 /* terminate insn group upon reaching end of file: */
7726 insn_group_break (1, 0, 0);
7728 /* emits slots we haven't written yet: */
7729 ia64_flush_insns ();
7731 bfd_set_private_flags (stdoutput
, md
.flags
);
7733 md
.mem_offset
.hint
= 0;
7742 /* Make sure we don't reference input_line_pointer[-1] when that's
7748 if (md
.qp
.X_op
== O_register
)
7749 as_bad ("qualifying predicate not followed by instruction");
7750 md
.qp
.X_op
= O_absent
;
7752 if (ignore_input ())
7755 if (input_line_pointer
[0] == ';' && input_line_pointer
[-1] == ';')
7757 if (md
.detect_dv
&& !md
.explicit_mode
)
7764 as_warn (_("Explicit stops are ignored in auto mode"));
7768 insn_group_break (1, 0, 0);
7770 else if (input_line_pointer
[-1] == '{')
7772 if (md
.manual_bundling
)
7773 as_warn ("Found '{' when manual bundling is already turned on");
7775 CURR_SLOT
.manual_bundling_on
= 1;
7776 md
.manual_bundling
= 1;
7778 /* Bundling is only acceptable in explicit mode
7779 or when in default automatic mode. */
7780 if (md
.detect_dv
&& !md
.explicit_mode
)
7782 if (!md
.mode_explicitly_set
7783 && !md
.default_explicit_mode
)
7786 as_warn (_("Found '{' after explicit switch to automatic mode"));
7789 else if (input_line_pointer
[-1] == '}')
7791 if (!md
.manual_bundling
)
7792 as_warn ("Found '}' when manual bundling is off");
7794 PREV_SLOT
.manual_bundling_off
= 1;
7795 md
.manual_bundling
= 0;
7797 /* switch back to automatic mode, if applicable */
7800 && !md
.mode_explicitly_set
7801 && !md
.default_explicit_mode
)
7806 /* This is a hook for ia64_frob_label, so that it can distinguish tags from
7808 static int defining_tag
= 0;
7811 ia64_unrecognized_line (ch
)
7817 expression_and_evaluate (&md
.qp
);
7818 if (*input_line_pointer
++ != ')')
7820 as_bad ("Expected ')'");
7823 if (md
.qp
.X_op
!= O_register
)
7825 as_bad ("Qualifying predicate expected");
7828 if (md
.qp
.X_add_number
< REG_P
|| md
.qp
.X_add_number
>= REG_P
+ 64)
7830 as_bad ("Predicate register expected");
7842 if (md
.qp
.X_op
== O_register
)
7844 as_bad ("Tag must come before qualifying predicate.");
7848 /* This implements just enough of read_a_source_file in read.c to
7849 recognize labels. */
7850 if (is_name_beginner (*input_line_pointer
))
7852 s
= input_line_pointer
;
7853 c
= get_symbol_end ();
7855 else if (LOCAL_LABELS_FB
7856 && ISDIGIT (*input_line_pointer
))
7859 while (ISDIGIT (*input_line_pointer
))
7860 temp
= (temp
* 10) + *input_line_pointer
++ - '0';
7861 fb_label_instance_inc (temp
);
7862 s
= fb_label_name (temp
, 0);
7863 c
= *input_line_pointer
;
7872 /* Put ':' back for error messages' sake. */
7873 *input_line_pointer
++ = ':';
7874 as_bad ("Expected ':'");
7881 /* Put ':' back for error messages' sake. */
7882 *input_line_pointer
++ = ':';
7883 if (*input_line_pointer
++ != ']')
7885 as_bad ("Expected ']'");
7890 as_bad ("Tag name expected");
7900 /* Not a valid line. */
7905 ia64_frob_label (sym
)
7908 struct label_fix
*fix
;
7910 /* Tags need special handling since they are not bundle breaks like
7914 fix
= obstack_alloc (¬es
, sizeof (*fix
));
7916 fix
->next
= CURR_SLOT
.tag_fixups
;
7917 fix
->dw2_mark_labels
= FALSE
;
7918 CURR_SLOT
.tag_fixups
= fix
;
7923 if (bfd_get_section_flags (stdoutput
, now_seg
) & SEC_CODE
)
7925 md
.last_text_seg
= now_seg
;
7926 fix
= obstack_alloc (¬es
, sizeof (*fix
));
7928 fix
->next
= CURR_SLOT
.label_fixups
;
7929 fix
->dw2_mark_labels
= dwarf2_loc_mark_labels
;
7930 CURR_SLOT
.label_fixups
= fix
;
7932 /* Keep track of how many code entry points we've seen. */
7933 if (md
.path
== md
.maxpaths
)
7936 md
.entry_labels
= (const char **)
7937 xrealloc ((void *) md
.entry_labels
,
7938 md
.maxpaths
* sizeof (char *));
7940 md
.entry_labels
[md
.path
++] = S_GET_NAME (sym
);
7945 /* The HP-UX linker will give unresolved symbol errors for symbols
7946 that are declared but unused. This routine removes declared,
7947 unused symbols from an object. */
7949 ia64_frob_symbol (sym
)
7952 if ((S_GET_SEGMENT (sym
) == &bfd_und_section
&& ! symbol_used_p (sym
) &&
7953 ELF_ST_VISIBILITY (S_GET_OTHER (sym
)) == STV_DEFAULT
)
7954 || (S_GET_SEGMENT (sym
) == &bfd_abs_section
7955 && ! S_IS_EXTERNAL (sym
)))
7962 ia64_flush_pending_output ()
7964 if (!md
.keep_pending_output
7965 && bfd_get_section_flags (stdoutput
, now_seg
) & SEC_CODE
)
7967 /* ??? This causes many unnecessary stop bits to be emitted.
7968 Unfortunately, it isn't clear if it is safe to remove this. */
7969 insn_group_break (1, 0, 0);
7970 ia64_flush_insns ();
7974 /* Do ia64-specific expression optimization. All that's done here is
7975 to transform index expressions that are either due to the indexing
7976 of rotating registers or due to the indexing of indirect register
7979 ia64_optimize_expr (l
, op
, r
)
7986 resolve_expression (l
);
7987 if (l
->X_op
== O_register
)
7989 unsigned num_regs
= l
->X_add_number
>> 16;
7991 resolve_expression (r
);
7994 /* Left side is a .rotX-allocated register. */
7995 if (r
->X_op
!= O_constant
)
7997 as_bad ("Rotating register index must be a non-negative constant");
7998 r
->X_add_number
= 0;
8000 else if ((valueT
) r
->X_add_number
>= num_regs
)
8002 as_bad ("Index out of range 0..%u", num_regs
- 1);
8003 r
->X_add_number
= 0;
8005 l
->X_add_number
= (l
->X_add_number
& 0xffff) + r
->X_add_number
;
8008 else if (l
->X_add_number
>= IND_CPUID
&& l
->X_add_number
<= IND_RR
)
8010 if (r
->X_op
!= O_register
8011 || r
->X_add_number
< REG_GR
8012 || r
->X_add_number
> REG_GR
+ 127)
8014 as_bad ("Indirect register index must be a general register");
8015 r
->X_add_number
= REG_GR
;
8018 l
->X_op_symbol
= md
.indregsym
[l
->X_add_number
- IND_CPUID
];
8019 l
->X_add_number
= r
->X_add_number
;
8023 as_bad ("Index can only be applied to rotating or indirect registers");
8024 /* Fall back to some register use of which has as little as possible
8025 side effects, to minimize subsequent error messages. */
8026 l
->X_op
= O_register
;
8027 l
->X_add_number
= REG_GR
+ 3;
8032 ia64_parse_name (name
, e
, nextcharP
)
8037 struct const_desc
*cdesc
;
8038 struct dynreg
*dr
= 0;
8045 enum pseudo_type pseudo_type
= PSEUDO_FUNC_NONE
;
8047 /* Find what relocation pseudo-function we're dealing with. */
8048 for (idx
= 0; idx
< NELEMS (pseudo_func
); ++idx
)
8049 if (pseudo_func
[idx
].name
8050 && pseudo_func
[idx
].name
[0] == name
[1]
8051 && strcmp (pseudo_func
[idx
].name
+ 1, name
+ 2) == 0)
8053 pseudo_type
= pseudo_func
[idx
].type
;
8056 switch (pseudo_type
)
8058 case PSEUDO_FUNC_RELOC
:
8059 end
= input_line_pointer
;
8060 if (*nextcharP
!= '(')
8062 as_bad ("Expected '('");
8066 ++input_line_pointer
;
8068 if (*input_line_pointer
!= ')')
8070 as_bad ("Missing ')'");
8074 ++input_line_pointer
;
8075 if (e
->X_op
!= O_symbol
)
8077 if (e
->X_op
!= O_pseudo_fixup
)
8079 as_bad ("Not a symbolic expression");
8082 if (idx
!= FUNC_LT_RELATIVE
)
8084 as_bad ("Illegal combination of relocation functions");
8087 switch (S_GET_VALUE (e
->X_op_symbol
))
8089 case FUNC_FPTR_RELATIVE
:
8090 idx
= FUNC_LT_FPTR_RELATIVE
; break;
8091 case FUNC_DTP_MODULE
:
8092 idx
= FUNC_LT_DTP_MODULE
; break;
8093 case FUNC_DTP_RELATIVE
:
8094 idx
= FUNC_LT_DTP_RELATIVE
; break;
8095 case FUNC_TP_RELATIVE
:
8096 idx
= FUNC_LT_TP_RELATIVE
; break;
8098 as_bad ("Illegal combination of relocation functions");
8102 /* Make sure gas doesn't get rid of local symbols that are used
8104 e
->X_op
= O_pseudo_fixup
;
8105 e
->X_op_symbol
= pseudo_func
[idx
].u
.sym
;
8107 *nextcharP
= *input_line_pointer
;
8110 case PSEUDO_FUNC_CONST
:
8111 e
->X_op
= O_constant
;
8112 e
->X_add_number
= pseudo_func
[idx
].u
.ival
;
8115 case PSEUDO_FUNC_REG
:
8116 e
->X_op
= O_register
;
8117 e
->X_add_number
= pseudo_func
[idx
].u
.ival
;
8126 /* first see if NAME is a known register name: */
8127 sym
= hash_find (md
.reg_hash
, name
);
8130 e
->X_op
= O_register
;
8131 e
->X_add_number
= S_GET_VALUE (sym
);
8135 cdesc
= hash_find (md
.const_hash
, name
);
8138 e
->X_op
= O_constant
;
8139 e
->X_add_number
= cdesc
->value
;
8143 /* check for inN, locN, or outN: */
8148 if (name
[1] == 'n' && ISDIGIT (name
[2]))
8156 if (name
[1] == 'o' && name
[2] == 'c' && ISDIGIT (name
[3]))
8164 if (name
[1] == 'u' && name
[2] == 't' && ISDIGIT (name
[3]))
8175 /* Ignore register numbers with leading zeroes, except zero itself. */
8176 if (dr
&& (name
[idx
] != '0' || name
[idx
+ 1] == '\0'))
8178 unsigned long regnum
;
8180 /* The name is inN, locN, or outN; parse the register number. */
8181 regnum
= strtoul (name
+ idx
, &end
, 10);
8182 if (end
> name
+ idx
&& *end
== '\0' && regnum
< 96)
8184 if (regnum
>= dr
->num_regs
)
8187 as_bad ("No current frame");
8189 as_bad ("Register number out of range 0..%u",
8193 e
->X_op
= O_register
;
8194 e
->X_add_number
= dr
->base
+ regnum
;
8199 end
= alloca (strlen (name
) + 1);
8201 name
= ia64_canonicalize_symbol_name (end
);
8202 if ((dr
= hash_find (md
.dynreg_hash
, name
)))
8204 /* We've got ourselves the name of a rotating register set.
8205 Store the base register number in the low 16 bits of
8206 X_add_number and the size of the register set in the top 16
8208 e
->X_op
= O_register
;
8209 e
->X_add_number
= dr
->base
| (dr
->num_regs
<< 16);
8215 /* Remove the '#' suffix that indicates a symbol as opposed to a register. */
8218 ia64_canonicalize_symbol_name (name
)
8221 size_t len
= strlen (name
), full
= len
;
8223 while (len
> 0 && name
[len
- 1] == '#')
8228 as_bad ("Standalone `#' is illegal");
8230 else if (len
< full
- 1)
8231 as_warn ("Redundant `#' suffix operators");
8236 /* Return true if idesc is a conditional branch instruction. This excludes
8237 the modulo scheduled branches, and br.ia. Mod-sched branches are excluded
8238 because they always read/write resources regardless of the value of the
8239 qualifying predicate. br.ia must always use p0, and hence is always
8240 taken. Thus this function returns true for branches which can fall
8241 through, and which use no resources if they do fall through. */
8244 is_conditional_branch (idesc
)
8245 struct ia64_opcode
*idesc
;
8247 /* br is a conditional branch. Everything that starts with br. except
8248 br.ia, br.c{loop,top,exit}, and br.w{top,exit} is a conditional branch.
8249 Everything that starts with brl is a conditional branch. */
8250 return (idesc
->name
[0] == 'b' && idesc
->name
[1] == 'r'
8251 && (idesc
->name
[2] == '\0'
8252 || (idesc
->name
[2] == '.' && idesc
->name
[3] != 'i'
8253 && idesc
->name
[3] != 'c' && idesc
->name
[3] != 'w')
8254 || idesc
->name
[2] == 'l'
8255 /* br.cond, br.call, br.clr */
8256 || (idesc
->name
[2] == '.' && idesc
->name
[3] == 'c'
8257 && (idesc
->name
[4] == 'a' || idesc
->name
[4] == 'o'
8258 || (idesc
->name
[4] == 'l' && idesc
->name
[5] == 'r')))));
8261 /* Return whether the given opcode is a taken branch. If there's any doubt,
8265 is_taken_branch (idesc
)
8266 struct ia64_opcode
*idesc
;
8268 return ((is_conditional_branch (idesc
) && CURR_SLOT
.qp_regno
== 0)
8269 || strncmp (idesc
->name
, "br.ia", 5) == 0);
8272 /* Return whether the given opcode is an interruption or rfi. If there's any
8273 doubt, returns zero. */
8276 is_interruption_or_rfi (idesc
)
8277 struct ia64_opcode
*idesc
;
8279 if (strcmp (idesc
->name
, "rfi") == 0)
8284 /* Returns the index of the given dependency in the opcode's list of chks, or
8285 -1 if there is no dependency. */
8288 depends_on (depind
, idesc
)
8290 struct ia64_opcode
*idesc
;
8293 const struct ia64_opcode_dependency
*dep
= idesc
->dependencies
;
8294 for (i
= 0; i
< dep
->nchks
; i
++)
8296 if (depind
== DEP (dep
->chks
[i
]))
8302 /* Determine a set of specific resources used for a particular resource
8303 class. Returns the number of specific resources identified For those
8304 cases which are not determinable statically, the resource returned is
8307 Meanings of value in 'NOTE':
8308 1) only read/write when the register number is explicitly encoded in the
8310 2) only read CFM when accessing a rotating GR, FR, or PR. mov pr only
8311 accesses CFM when qualifying predicate is in the rotating region.
8312 3) general register value is used to specify an indirect register; not
8313 determinable statically.
8314 4) only read the given resource when bits 7:0 of the indirect index
8315 register value does not match the register number of the resource; not
8316 determinable statically.
8317 5) all rules are implementation specific.
8318 6) only when both the index specified by the reader and the index specified
8319 by the writer have the same value in bits 63:61; not determinable
8321 7) only access the specified resource when the corresponding mask bit is
8323 8) PSR.dfh is only read when these insns reference FR32-127. PSR.dfl is
8324 only read when these insns reference FR2-31
8325 9) PSR.mfl is only written when these insns write FR2-31. PSR.mfh is only
8326 written when these insns write FR32-127
8327 10) The PSR.bn bit is only accessed when one of GR16-31 is specified in the
8329 11) The target predicates are written independently of PR[qp], but source
8330 registers are only read if PR[qp] is true. Since the state of PR[qp]
8331 cannot statically be determined, all source registers are marked used.
8332 12) This insn only reads the specified predicate register when that
8333 register is the PR[qp].
8334 13) This reference to ld-c only applies to teh GR whose value is loaded
8335 with data returned from memory, not the post-incremented address register.
8336 14) The RSE resource includes the implementation-specific RSE internal
8337 state resources. At least one (and possibly more) of these resources are
8338 read by each instruction listed in IC:rse-readers. At least one (and
8339 possibly more) of these resources are written by each insn listed in
8341 15+16) Represents reserved instructions, which the assembler does not
8344 Memory resources (i.e. locations in memory) are *not* marked or tracked by
8345 this code; there are no dependency violations based on memory access.
8348 #define MAX_SPECS 256
8353 specify_resource (dep
, idesc
, type
, specs
, note
, path
)
8354 const struct ia64_dependency
*dep
;
8355 struct ia64_opcode
*idesc
;
8356 int type
; /* is this a DV chk or a DV reg? */
8357 struct rsrc specs
[MAX_SPECS
]; /* returned specific resources */
8358 int note
; /* resource note for this insn's usage */
8359 int path
; /* which execution path to examine */
8366 if (dep
->mode
== IA64_DV_WAW
8367 || (dep
->mode
== IA64_DV_RAW
&& type
== DV_REG
)
8368 || (dep
->mode
== IA64_DV_WAR
&& type
== DV_CHK
))
8371 /* template for any resources we identify */
8372 tmpl
.dependency
= dep
;
8374 tmpl
.insn_srlz
= tmpl
.data_srlz
= 0;
8375 tmpl
.qp_regno
= CURR_SLOT
.qp_regno
;
8376 tmpl
.link_to_qp_branch
= 1;
8377 tmpl
.mem_offset
.hint
= 0;
8378 tmpl
.mem_offset
.offset
= 0;
8379 tmpl
.mem_offset
.base
= 0;
8382 tmpl
.cmp_type
= CMP_NONE
;
8389 as_warn (_("Unhandled dependency %s for %s (%s), note %d"), \
8390 dep->name, idesc->name, (rsrc_write?"write":"read"), note)
8391 #define KNOWN(REG) (gr_values[REG].known && gr_values[REG].path >= path)
8393 /* we don't need to track these */
8394 if (dep
->semantics
== IA64_DVS_NONE
)
8397 switch (dep
->specifier
)
8402 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_AR3
)
8404 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_AR
;
8405 if (regno
>= 0 && regno
<= 7)
8407 specs
[count
] = tmpl
;
8408 specs
[count
++].index
= regno
;
8414 for (i
= 0; i
< 8; i
++)
8416 specs
[count
] = tmpl
;
8417 specs
[count
++].index
= i
;
8426 case IA64_RS_AR_UNAT
:
8427 /* This is a mov =AR or mov AR= instruction. */
8428 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_AR3
)
8430 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_AR
;
8431 if (regno
== AR_UNAT
)
8433 specs
[count
++] = tmpl
;
8438 /* This is a spill/fill, or other instruction that modifies the
8441 /* Unless we can determine the specific bits used, mark the whole
8442 thing; bits 8:3 of the memory address indicate the bit used in
8443 UNAT. The .mem.offset hint may be used to eliminate a small
8444 subset of conflicts. */
8445 specs
[count
] = tmpl
;
8446 if (md
.mem_offset
.hint
)
8449 fprintf (stderr
, " Using hint for spill/fill\n");
8450 /* The index isn't actually used, just set it to something
8451 approximating the bit index. */
8452 specs
[count
].index
= (md
.mem_offset
.offset
>> 3) & 0x3F;
8453 specs
[count
].mem_offset
.hint
= 1;
8454 specs
[count
].mem_offset
.offset
= md
.mem_offset
.offset
;
8455 specs
[count
++].mem_offset
.base
= md
.mem_offset
.base
;
8459 specs
[count
++].specific
= 0;
8467 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_AR3
)
8469 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_AR
;
8470 if ((regno
>= 8 && regno
<= 15)
8471 || (regno
>= 20 && regno
<= 23)
8472 || (regno
>= 31 && regno
<= 39)
8473 || (regno
>= 41 && regno
<= 47)
8474 || (regno
>= 67 && regno
<= 111))
8476 specs
[count
] = tmpl
;
8477 specs
[count
++].index
= regno
;
8490 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_AR3
)
8492 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_AR
;
8493 if ((regno
>= 48 && regno
<= 63)
8494 || (regno
>= 112 && regno
<= 127))
8496 specs
[count
] = tmpl
;
8497 specs
[count
++].index
= regno
;
8503 for (i
= 48; i
< 64; i
++)
8505 specs
[count
] = tmpl
;
8506 specs
[count
++].index
= i
;
8508 for (i
= 112; i
< 128; i
++)
8510 specs
[count
] = tmpl
;
8511 specs
[count
++].index
= i
;
8529 for (i
= 0; i
< idesc
->num_outputs
; i
++)
8530 if (idesc
->operands
[i
] == IA64_OPND_B1
8531 || idesc
->operands
[i
] == IA64_OPND_B2
)
8533 specs
[count
] = tmpl
;
8534 specs
[count
++].index
=
8535 CURR_SLOT
.opnd
[i
].X_add_number
- REG_BR
;
8540 for (i
= idesc
->num_outputs
; i
< NELEMS (idesc
->operands
); i
++)
8541 if (idesc
->operands
[i
] == IA64_OPND_B1
8542 || idesc
->operands
[i
] == IA64_OPND_B2
)
8544 specs
[count
] = tmpl
;
8545 specs
[count
++].index
=
8546 CURR_SLOT
.opnd
[i
].X_add_number
- REG_BR
;
8552 case IA64_RS_CPUID
: /* four or more registers */
8555 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_CPUID_R3
)
8557 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_GR
;
8558 if (regno
>= 0 && regno
< NELEMS (gr_values
)
8561 specs
[count
] = tmpl
;
8562 specs
[count
++].index
= gr_values
[regno
].value
& 0xFF;
8566 specs
[count
] = tmpl
;
8567 specs
[count
++].specific
= 0;
8577 case IA64_RS_DBR
: /* four or more registers */
8580 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_DBR_R3
)
8582 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_GR
;
8583 if (regno
>= 0 && regno
< NELEMS (gr_values
)
8586 specs
[count
] = tmpl
;
8587 specs
[count
++].index
= gr_values
[regno
].value
& 0xFF;
8591 specs
[count
] = tmpl
;
8592 specs
[count
++].specific
= 0;
8596 else if (note
== 0 && !rsrc_write
)
8598 specs
[count
] = tmpl
;
8599 specs
[count
++].specific
= 0;
8607 case IA64_RS_IBR
: /* four or more registers */
8610 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_IBR_R3
)
8612 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_GR
;
8613 if (regno
>= 0 && regno
< NELEMS (gr_values
)
8616 specs
[count
] = tmpl
;
8617 specs
[count
++].index
= gr_values
[regno
].value
& 0xFF;
8621 specs
[count
] = tmpl
;
8622 specs
[count
++].specific
= 0;
8635 /* These are implementation specific. Force all references to
8636 conflict with all other references. */
8637 specs
[count
] = tmpl
;
8638 specs
[count
++].specific
= 0;
8646 case IA64_RS_PKR
: /* 16 or more registers */
8647 if (note
== 3 || note
== 4)
8649 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_PKR_R3
)
8651 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_GR
;
8652 if (regno
>= 0 && regno
< NELEMS (gr_values
)
8657 specs
[count
] = tmpl
;
8658 specs
[count
++].index
= gr_values
[regno
].value
& 0xFF;
8661 for (i
= 0; i
< NELEMS (gr_values
); i
++)
8663 /* Uses all registers *except* the one in R3. */
8664 if ((unsigned)i
!= (gr_values
[regno
].value
& 0xFF))
8666 specs
[count
] = tmpl
;
8667 specs
[count
++].index
= i
;
8673 specs
[count
] = tmpl
;
8674 specs
[count
++].specific
= 0;
8681 specs
[count
] = tmpl
;
8682 specs
[count
++].specific
= 0;
8686 case IA64_RS_PMC
: /* four or more registers */
8689 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_PMC_R3
8690 || (!rsrc_write
&& idesc
->operands
[1] == IA64_OPND_PMD_R3
))
8693 int index
= ((idesc
->operands
[1] == IA64_OPND_R3
&& !rsrc_write
)
8695 int regno
= CURR_SLOT
.opnd
[index
].X_add_number
- REG_GR
;
8696 if (regno
>= 0 && regno
< NELEMS (gr_values
)
8699 specs
[count
] = tmpl
;
8700 specs
[count
++].index
= gr_values
[regno
].value
& 0xFF;
8704 specs
[count
] = tmpl
;
8705 specs
[count
++].specific
= 0;
8715 case IA64_RS_PMD
: /* four or more registers */
8718 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_PMD_R3
)
8720 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_GR
;
8721 if (regno
>= 0 && regno
< NELEMS (gr_values
)
8724 specs
[count
] = tmpl
;
8725 specs
[count
++].index
= gr_values
[regno
].value
& 0xFF;
8729 specs
[count
] = tmpl
;
8730 specs
[count
++].specific
= 0;
8740 case IA64_RS_RR
: /* eight registers */
8743 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_RR_R3
)
8745 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_GR
;
8746 if (regno
>= 0 && regno
< NELEMS (gr_values
)
8749 specs
[count
] = tmpl
;
8750 specs
[count
++].index
= (gr_values
[regno
].value
>> 61) & 0x7;
8754 specs
[count
] = tmpl
;
8755 specs
[count
++].specific
= 0;
8759 else if (note
== 0 && !rsrc_write
)
8761 specs
[count
] = tmpl
;
8762 specs
[count
++].specific
= 0;
8770 case IA64_RS_CR_IRR
:
8773 /* handle mov-from-CR-IVR; it's a read that writes CR[IRR] */
8774 int regno
= CURR_SLOT
.opnd
[1].X_add_number
- REG_CR
;
8776 && idesc
->operands
[1] == IA64_OPND_CR3
8779 for (i
= 0; i
< 4; i
++)
8781 specs
[count
] = tmpl
;
8782 specs
[count
++].index
= CR_IRR0
+ i
;
8788 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_CR
;
8789 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_CR3
8791 && regno
<= CR_IRR3
)
8793 specs
[count
] = tmpl
;
8794 specs
[count
++].index
= regno
;
8803 case IA64_RS_CR_LRR
:
8810 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_CR
;
8811 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_CR3
8812 && (regno
== CR_LRR0
|| regno
== CR_LRR1
))
8814 specs
[count
] = tmpl
;
8815 specs
[count
++].index
= regno
;
8823 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_CR3
)
8825 specs
[count
] = tmpl
;
8826 specs
[count
++].index
=
8827 CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_CR
;
8842 else if (rsrc_write
)
8844 if (dep
->specifier
== IA64_RS_FRb
8845 && idesc
->operands
[0] == IA64_OPND_F1
)
8847 specs
[count
] = tmpl
;
8848 specs
[count
++].index
= CURR_SLOT
.opnd
[0].X_add_number
- REG_FR
;
8853 for (i
= idesc
->num_outputs
; i
< NELEMS (idesc
->operands
); i
++)
8855 if (idesc
->operands
[i
] == IA64_OPND_F2
8856 || idesc
->operands
[i
] == IA64_OPND_F3
8857 || idesc
->operands
[i
] == IA64_OPND_F4
)
8859 specs
[count
] = tmpl
;
8860 specs
[count
++].index
=
8861 CURR_SLOT
.opnd
[i
].X_add_number
- REG_FR
;
8870 /* This reference applies only to the GR whose value is loaded with
8871 data returned from memory. */
8872 specs
[count
] = tmpl
;
8873 specs
[count
++].index
= CURR_SLOT
.opnd
[0].X_add_number
- REG_GR
;
8879 for (i
= 0; i
< idesc
->num_outputs
; i
++)
8880 if (idesc
->operands
[i
] == IA64_OPND_R1
8881 || idesc
->operands
[i
] == IA64_OPND_R2
8882 || idesc
->operands
[i
] == IA64_OPND_R3
)
8884 specs
[count
] = tmpl
;
8885 specs
[count
++].index
=
8886 CURR_SLOT
.opnd
[i
].X_add_number
- REG_GR
;
8888 if (idesc
->flags
& IA64_OPCODE_POSTINC
)
8889 for (i
= 0; i
< NELEMS (idesc
->operands
); i
++)
8890 if (idesc
->operands
[i
] == IA64_OPND_MR3
)
8892 specs
[count
] = tmpl
;
8893 specs
[count
++].index
=
8894 CURR_SLOT
.opnd
[i
].X_add_number
- REG_GR
;
8899 /* Look for anything that reads a GR. */
8900 for (i
= 0; i
< NELEMS (idesc
->operands
); i
++)
8902 if (idesc
->operands
[i
] == IA64_OPND_MR3
8903 || idesc
->operands
[i
] == IA64_OPND_CPUID_R3
8904 || idesc
->operands
[i
] == IA64_OPND_DBR_R3
8905 || idesc
->operands
[i
] == IA64_OPND_IBR_R3
8906 || idesc
->operands
[i
] == IA64_OPND_MSR_R3
8907 || idesc
->operands
[i
] == IA64_OPND_PKR_R3
8908 || idesc
->operands
[i
] == IA64_OPND_PMC_R3
8909 || idesc
->operands
[i
] == IA64_OPND_PMD_R3
8910 || idesc
->operands
[i
] == IA64_OPND_RR_R3
8911 || ((i
>= idesc
->num_outputs
)
8912 && (idesc
->operands
[i
] == IA64_OPND_R1
8913 || idesc
->operands
[i
] == IA64_OPND_R2
8914 || idesc
->operands
[i
] == IA64_OPND_R3
8915 /* addl source register. */
8916 || idesc
->operands
[i
] == IA64_OPND_R3_2
)))
8918 specs
[count
] = tmpl
;
8919 specs
[count
++].index
=
8920 CURR_SLOT
.opnd
[i
].X_add_number
- REG_GR
;
8931 /* This is the same as IA64_RS_PRr, except that the register range is
8932 from 1 - 15, and there are no rotating register reads/writes here. */
8936 for (i
= 1; i
< 16; i
++)
8938 specs
[count
] = tmpl
;
8939 specs
[count
++].index
= i
;
8945 /* Mark only those registers indicated by the mask. */
8948 mask
= CURR_SLOT
.opnd
[2].X_add_number
;
8949 for (i
= 1; i
< 16; i
++)
8950 if (mask
& ((valueT
) 1 << i
))
8952 specs
[count
] = tmpl
;
8953 specs
[count
++].index
= i
;
8961 else if (note
== 11) /* note 11 implies note 1 as well */
8965 for (i
= 0; i
< idesc
->num_outputs
; i
++)
8967 if (idesc
->operands
[i
] == IA64_OPND_P1
8968 || idesc
->operands
[i
] == IA64_OPND_P2
)
8970 int regno
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_P
;
8971 if (regno
>= 1 && regno
< 16)
8973 specs
[count
] = tmpl
;
8974 specs
[count
++].index
= regno
;
8984 else if (note
== 12)
8986 if (CURR_SLOT
.qp_regno
>= 1 && CURR_SLOT
.qp_regno
< 16)
8988 specs
[count
] = tmpl
;
8989 specs
[count
++].index
= CURR_SLOT
.qp_regno
;
8996 int p1
= CURR_SLOT
.opnd
[0].X_add_number
- REG_P
;
8997 int p2
= CURR_SLOT
.opnd
[1].X_add_number
- REG_P
;
8998 int or_andcm
= strstr (idesc
->name
, "or.andcm") != NULL
;
8999 int and_orcm
= strstr (idesc
->name
, "and.orcm") != NULL
;
9001 if ((idesc
->operands
[0] == IA64_OPND_P1
9002 || idesc
->operands
[0] == IA64_OPND_P2
)
9003 && p1
>= 1 && p1
< 16)
9005 specs
[count
] = tmpl
;
9006 specs
[count
].cmp_type
=
9007 (or_andcm
? CMP_OR
: (and_orcm
? CMP_AND
: CMP_NONE
));
9008 specs
[count
++].index
= p1
;
9010 if ((idesc
->operands
[1] == IA64_OPND_P1
9011 || idesc
->operands
[1] == IA64_OPND_P2
)
9012 && p2
>= 1 && p2
< 16)
9014 specs
[count
] = tmpl
;
9015 specs
[count
].cmp_type
=
9016 (or_andcm
? CMP_AND
: (and_orcm
? CMP_OR
: CMP_NONE
));
9017 specs
[count
++].index
= p2
;
9022 if (CURR_SLOT
.qp_regno
>= 1 && CURR_SLOT
.qp_regno
< 16)
9024 specs
[count
] = tmpl
;
9025 specs
[count
++].index
= CURR_SLOT
.qp_regno
;
9027 if (idesc
->operands
[1] == IA64_OPND_PR
)
9029 for (i
= 1; i
< 16; i
++)
9031 specs
[count
] = tmpl
;
9032 specs
[count
++].index
= i
;
9043 /* This is the general case for PRs. IA64_RS_PR and IA64_RS_PR63 are
9044 simplified cases of this. */
9048 for (i
= 16; i
< 63; i
++)
9050 specs
[count
] = tmpl
;
9051 specs
[count
++].index
= i
;
9057 /* Mark only those registers indicated by the mask. */
9059 && idesc
->operands
[0] == IA64_OPND_PR
)
9061 mask
= CURR_SLOT
.opnd
[2].X_add_number
;
9062 if (mask
& ((valueT
) 1 << 16))
9063 for (i
= 16; i
< 63; i
++)
9065 specs
[count
] = tmpl
;
9066 specs
[count
++].index
= i
;
9070 && idesc
->operands
[0] == IA64_OPND_PR_ROT
)
9072 for (i
= 16; i
< 63; i
++)
9074 specs
[count
] = tmpl
;
9075 specs
[count
++].index
= i
;
9083 else if (note
== 11) /* note 11 implies note 1 as well */
9087 for (i
= 0; i
< idesc
->num_outputs
; i
++)
9089 if (idesc
->operands
[i
] == IA64_OPND_P1
9090 || idesc
->operands
[i
] == IA64_OPND_P2
)
9092 int regno
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_P
;
9093 if (regno
>= 16 && regno
< 63)
9095 specs
[count
] = tmpl
;
9096 specs
[count
++].index
= regno
;
9106 else if (note
== 12)
9108 if (CURR_SLOT
.qp_regno
>= 16 && CURR_SLOT
.qp_regno
< 63)
9110 specs
[count
] = tmpl
;
9111 specs
[count
++].index
= CURR_SLOT
.qp_regno
;
9118 int p1
= CURR_SLOT
.opnd
[0].X_add_number
- REG_P
;
9119 int p2
= CURR_SLOT
.opnd
[1].X_add_number
- REG_P
;
9120 int or_andcm
= strstr (idesc
->name
, "or.andcm") != NULL
;
9121 int and_orcm
= strstr (idesc
->name
, "and.orcm") != NULL
;
9123 if ((idesc
->operands
[0] == IA64_OPND_P1
9124 || idesc
->operands
[0] == IA64_OPND_P2
)
9125 && p1
>= 16 && p1
< 63)
9127 specs
[count
] = tmpl
;
9128 specs
[count
].cmp_type
=
9129 (or_andcm
? CMP_OR
: (and_orcm
? CMP_AND
: CMP_NONE
));
9130 specs
[count
++].index
= p1
;
9132 if ((idesc
->operands
[1] == IA64_OPND_P1
9133 || idesc
->operands
[1] == IA64_OPND_P2
)
9134 && p2
>= 16 && p2
< 63)
9136 specs
[count
] = tmpl
;
9137 specs
[count
].cmp_type
=
9138 (or_andcm
? CMP_AND
: (and_orcm
? CMP_OR
: CMP_NONE
));
9139 specs
[count
++].index
= p2
;
9144 if (CURR_SLOT
.qp_regno
>= 16 && CURR_SLOT
.qp_regno
< 63)
9146 specs
[count
] = tmpl
;
9147 specs
[count
++].index
= CURR_SLOT
.qp_regno
;
9149 if (idesc
->operands
[1] == IA64_OPND_PR
)
9151 for (i
= 16; i
< 63; i
++)
9153 specs
[count
] = tmpl
;
9154 specs
[count
++].index
= i
;
9166 /* Verify that the instruction is using the PSR bit indicated in
9170 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_PSR_UM
)
9172 if (dep
->regindex
< 6)
9174 specs
[count
++] = tmpl
;
9177 else if (idesc
->operands
[!rsrc_write
] == IA64_OPND_PSR
)
9179 if (dep
->regindex
< 32
9180 || dep
->regindex
== 35
9181 || dep
->regindex
== 36
9182 || (!rsrc_write
&& dep
->regindex
== PSR_CPL
))
9184 specs
[count
++] = tmpl
;
9187 else if (idesc
->operands
[!rsrc_write
] == IA64_OPND_PSR_L
)
9189 if (dep
->regindex
< 32
9190 || dep
->regindex
== 35
9191 || dep
->regindex
== 36
9192 || (rsrc_write
&& dep
->regindex
== PSR_CPL
))
9194 specs
[count
++] = tmpl
;
9199 /* Several PSR bits have very specific dependencies. */
9200 switch (dep
->regindex
)
9203 specs
[count
++] = tmpl
;
9208 specs
[count
++] = tmpl
;
9212 /* Only certain CR accesses use PSR.ic */
9213 if (idesc
->operands
[0] == IA64_OPND_CR3
9214 || idesc
->operands
[1] == IA64_OPND_CR3
)
9217 ((idesc
->operands
[0] == IA64_OPND_CR3
)
9220 CURR_SLOT
.opnd
[index
].X_add_number
- REG_CR
;
9235 specs
[count
++] = tmpl
;
9244 specs
[count
++] = tmpl
;
9248 /* Only some AR accesses use cpl */
9249 if (idesc
->operands
[0] == IA64_OPND_AR3
9250 || idesc
->operands
[1] == IA64_OPND_AR3
)
9253 ((idesc
->operands
[0] == IA64_OPND_AR3
)
9256 CURR_SLOT
.opnd
[index
].X_add_number
- REG_AR
;
9263 && regno
<= AR_K7
))))
9265 specs
[count
++] = tmpl
;
9270 specs
[count
++] = tmpl
;
9280 if (idesc
->operands
[0] == IA64_OPND_IMMU24
)
9282 mask
= CURR_SLOT
.opnd
[0].X_add_number
;
9288 if (mask
& ((valueT
) 1 << dep
->regindex
))
9290 specs
[count
++] = tmpl
;
9295 int min
= dep
->regindex
== PSR_DFL
? 2 : 32;
9296 int max
= dep
->regindex
== PSR_DFL
? 31 : 127;
9297 /* dfh is read on FR32-127; dfl is read on FR2-31 */
9298 for (i
= 0; i
< NELEMS (idesc
->operands
); i
++)
9300 if (idesc
->operands
[i
] == IA64_OPND_F1
9301 || idesc
->operands
[i
] == IA64_OPND_F2
9302 || idesc
->operands
[i
] == IA64_OPND_F3
9303 || idesc
->operands
[i
] == IA64_OPND_F4
)
9305 int reg
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_FR
;
9306 if (reg
>= min
&& reg
<= max
)
9308 specs
[count
++] = tmpl
;
9315 int min
= dep
->regindex
== PSR_MFL
? 2 : 32;
9316 int max
= dep
->regindex
== PSR_MFL
? 31 : 127;
9317 /* mfh is read on writes to FR32-127; mfl is read on writes to
9319 for (i
= 0; i
< idesc
->num_outputs
; i
++)
9321 if (idesc
->operands
[i
] == IA64_OPND_F1
)
9323 int reg
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_FR
;
9324 if (reg
>= min
&& reg
<= max
)
9326 specs
[count
++] = tmpl
;
9331 else if (note
== 10)
9333 for (i
= 0; i
< NELEMS (idesc
->operands
); i
++)
9335 if (idesc
->operands
[i
] == IA64_OPND_R1
9336 || idesc
->operands
[i
] == IA64_OPND_R2
9337 || idesc
->operands
[i
] == IA64_OPND_R3
)
9339 int regno
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_GR
;
9340 if (regno
>= 16 && regno
<= 31)
9342 specs
[count
++] = tmpl
;
9353 case IA64_RS_AR_FPSR
:
9354 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_AR3
)
9356 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_AR
;
9357 if (regno
== AR_FPSR
)
9359 specs
[count
++] = tmpl
;
9364 specs
[count
++] = tmpl
;
9369 /* Handle all AR[REG] resources */
9370 if (note
== 0 || note
== 1)
9372 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_AR
;
9373 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_AR3
9374 && regno
== dep
->regindex
)
9376 specs
[count
++] = tmpl
;
9378 /* other AR[REG] resources may be affected by AR accesses */
9379 else if (idesc
->operands
[0] == IA64_OPND_AR3
)
9382 regno
= CURR_SLOT
.opnd
[0].X_add_number
- REG_AR
;
9383 switch (dep
->regindex
)
9389 if (regno
== AR_BSPSTORE
)
9391 specs
[count
++] = tmpl
;
9395 (regno
== AR_BSPSTORE
9396 || regno
== AR_RNAT
))
9398 specs
[count
++] = tmpl
;
9403 else if (idesc
->operands
[1] == IA64_OPND_AR3
)
9406 regno
= CURR_SLOT
.opnd
[1].X_add_number
- REG_AR
;
9407 switch (dep
->regindex
)
9412 if (regno
== AR_BSPSTORE
|| regno
== AR_RNAT
)
9414 specs
[count
++] = tmpl
;
9421 specs
[count
++] = tmpl
;
9431 /* Handle all CR[REG] resources */
9432 if (note
== 0 || note
== 1)
9434 if (idesc
->operands
[!rsrc_write
] == IA64_OPND_CR3
)
9436 int regno
= CURR_SLOT
.opnd
[!rsrc_write
].X_add_number
- REG_CR
;
9437 if (regno
== dep
->regindex
)
9439 specs
[count
++] = tmpl
;
9441 else if (!rsrc_write
)
9443 /* Reads from CR[IVR] affect other resources. */
9444 if (regno
== CR_IVR
)
9446 if ((dep
->regindex
>= CR_IRR0
9447 && dep
->regindex
<= CR_IRR3
)
9448 || dep
->regindex
== CR_TPR
)
9450 specs
[count
++] = tmpl
;
9457 specs
[count
++] = tmpl
;
9466 case IA64_RS_INSERVICE
:
9467 /* look for write of EOI (67) or read of IVR (65) */
9468 if ((idesc
->operands
[0] == IA64_OPND_CR3
9469 && CURR_SLOT
.opnd
[0].X_add_number
- REG_CR
== CR_EOI
)
9470 || (idesc
->operands
[1] == IA64_OPND_CR3
9471 && CURR_SLOT
.opnd
[1].X_add_number
- REG_CR
== CR_IVR
))
9473 specs
[count
++] = tmpl
;
9480 specs
[count
++] = tmpl
;
9491 specs
[count
++] = tmpl
;
9495 /* Check if any of the registers accessed are in the rotating region.
9496 mov to/from pr accesses CFM only when qp_regno is in the rotating
9498 for (i
= 0; i
< NELEMS (idesc
->operands
); i
++)
9500 if (idesc
->operands
[i
] == IA64_OPND_R1
9501 || idesc
->operands
[i
] == IA64_OPND_R2
9502 || idesc
->operands
[i
] == IA64_OPND_R3
)
9504 int num
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_GR
;
9505 /* Assumes that md.rot.num_regs is always valid */
9506 if (md
.rot
.num_regs
> 0
9508 && num
< 31 + md
.rot
.num_regs
)
9510 specs
[count
] = tmpl
;
9511 specs
[count
++].specific
= 0;
9514 else if (idesc
->operands
[i
] == IA64_OPND_F1
9515 || idesc
->operands
[i
] == IA64_OPND_F2
9516 || idesc
->operands
[i
] == IA64_OPND_F3
9517 || idesc
->operands
[i
] == IA64_OPND_F4
)
9519 int num
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_FR
;
9522 specs
[count
] = tmpl
;
9523 specs
[count
++].specific
= 0;
9526 else if (idesc
->operands
[i
] == IA64_OPND_P1
9527 || idesc
->operands
[i
] == IA64_OPND_P2
)
9529 int num
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_P
;
9532 specs
[count
] = tmpl
;
9533 specs
[count
++].specific
= 0;
9537 if (CURR_SLOT
.qp_regno
> 15)
9539 specs
[count
] = tmpl
;
9540 specs
[count
++].specific
= 0;
9545 /* This is the same as IA64_RS_PRr, except simplified to account for
9546 the fact that there is only one register. */
9550 specs
[count
++] = tmpl
;
9555 if (idesc
->operands
[2] == IA64_OPND_IMM17
)
9556 mask
= CURR_SLOT
.opnd
[2].X_add_number
;
9557 if (mask
& ((valueT
) 1 << 63))
9558 specs
[count
++] = tmpl
;
9560 else if (note
== 11)
9562 if ((idesc
->operands
[0] == IA64_OPND_P1
9563 && CURR_SLOT
.opnd
[0].X_add_number
- REG_P
== 63)
9564 || (idesc
->operands
[1] == IA64_OPND_P2
9565 && CURR_SLOT
.opnd
[1].X_add_number
- REG_P
== 63))
9567 specs
[count
++] = tmpl
;
9570 else if (note
== 12)
9572 if (CURR_SLOT
.qp_regno
== 63)
9574 specs
[count
++] = tmpl
;
9581 int p1
= CURR_SLOT
.opnd
[0].X_add_number
- REG_P
;
9582 int p2
= CURR_SLOT
.opnd
[1].X_add_number
- REG_P
;
9583 int or_andcm
= strstr (idesc
->name
, "or.andcm") != NULL
;
9584 int and_orcm
= strstr (idesc
->name
, "and.orcm") != NULL
;
9587 && (idesc
->operands
[0] == IA64_OPND_P1
9588 || idesc
->operands
[0] == IA64_OPND_P2
))
9590 specs
[count
] = tmpl
;
9591 specs
[count
++].cmp_type
=
9592 (or_andcm
? CMP_OR
: (and_orcm
? CMP_AND
: CMP_NONE
));
9595 && (idesc
->operands
[1] == IA64_OPND_P1
9596 || idesc
->operands
[1] == IA64_OPND_P2
))
9598 specs
[count
] = tmpl
;
9599 specs
[count
++].cmp_type
=
9600 (or_andcm
? CMP_AND
: (and_orcm
? CMP_OR
: CMP_NONE
));
9605 if (CURR_SLOT
.qp_regno
== 63)
9607 specs
[count
++] = tmpl
;
9618 /* FIXME we can identify some individual RSE written resources, but RSE
9619 read resources have not yet been completely identified, so for now
9620 treat RSE as a single resource */
9621 if (strncmp (idesc
->name
, "mov", 3) == 0)
9625 if (idesc
->operands
[0] == IA64_OPND_AR3
9626 && CURR_SLOT
.opnd
[0].X_add_number
- REG_AR
== AR_BSPSTORE
)
9628 specs
[count
++] = tmpl
;
9633 if (idesc
->operands
[0] == IA64_OPND_AR3
)
9635 if (CURR_SLOT
.opnd
[0].X_add_number
- REG_AR
== AR_BSPSTORE
9636 || CURR_SLOT
.opnd
[0].X_add_number
- REG_AR
== AR_RNAT
)
9638 specs
[count
++] = tmpl
;
9641 else if (idesc
->operands
[1] == IA64_OPND_AR3
)
9643 if (CURR_SLOT
.opnd
[1].X_add_number
- REG_AR
== AR_BSP
9644 || CURR_SLOT
.opnd
[1].X_add_number
- REG_AR
== AR_BSPSTORE
9645 || CURR_SLOT
.opnd
[1].X_add_number
- REG_AR
== AR_RNAT
)
9647 specs
[count
++] = tmpl
;
9654 specs
[count
++] = tmpl
;
9659 /* FIXME -- do any of these need to be non-specific? */
9660 specs
[count
++] = tmpl
;
9664 as_bad (_("Unrecognized dependency specifier %d\n"), dep
->specifier
);
9671 /* Clear branch flags on marked resources. This breaks the link between the
9672 QP of the marking instruction and a subsequent branch on the same QP. */
9675 clear_qp_branch_flag (mask
)
9679 for (i
= 0; i
< regdepslen
; i
++)
9681 valueT bit
= ((valueT
) 1 << regdeps
[i
].qp_regno
);
9682 if ((bit
& mask
) != 0)
9684 regdeps
[i
].link_to_qp_branch
= 0;
9689 /* MASK contains 2 and only 2 PRs which are mutually exclusive. Remove
9690 any mutexes which contain one of the PRs and create new ones when
9694 update_qp_mutex (valueT mask
)
9700 while (i
< qp_mutexeslen
)
9702 if ((qp_mutexes
[i
].prmask
& mask
) != 0)
9704 /* If it destroys and creates the same mutex, do nothing. */
9705 if (qp_mutexes
[i
].prmask
== mask
9706 && qp_mutexes
[i
].path
== md
.path
)
9717 fprintf (stderr
, " Clearing mutex relation");
9718 print_prmask (qp_mutexes
[i
].prmask
);
9719 fprintf (stderr
, "\n");
9722 /* Deal with the old mutex with more than 3+ PRs only if
9723 the new mutex on the same execution path with it.
9725 FIXME: The 3+ mutex support is incomplete.
9726 dot_pred_rel () may be a better place to fix it. */
9727 if (qp_mutexes
[i
].path
== md
.path
)
9729 /* If it is a proper subset of the mutex, create a
9732 && (qp_mutexes
[i
].prmask
& mask
) == mask
)
9735 qp_mutexes
[i
].prmask
&= ~mask
;
9736 if (qp_mutexes
[i
].prmask
& (qp_mutexes
[i
].prmask
- 1))
9738 /* Modify the mutex if there are more than one
9746 /* Remove the mutex. */
9747 qp_mutexes
[i
] = qp_mutexes
[--qp_mutexeslen
];
9755 add_qp_mutex (mask
);
9760 /* Remove any mutexes which contain any of the PRs indicated in the mask.
9762 Any changes to a PR clears the mutex relations which include that PR. */
9765 clear_qp_mutex (mask
)
9771 while (i
< qp_mutexeslen
)
9773 if ((qp_mutexes
[i
].prmask
& mask
) != 0)
9777 fprintf (stderr
, " Clearing mutex relation");
9778 print_prmask (qp_mutexes
[i
].prmask
);
9779 fprintf (stderr
, "\n");
9781 qp_mutexes
[i
] = qp_mutexes
[--qp_mutexeslen
];
9788 /* Clear implies relations which contain PRs in the given masks.
9789 P1_MASK indicates the source of the implies relation, while P2_MASK
9790 indicates the implied PR. */
9793 clear_qp_implies (p1_mask
, p2_mask
)
9800 while (i
< qp_implieslen
)
9802 if ((((valueT
) 1 << qp_implies
[i
].p1
) & p1_mask
) != 0
9803 || (((valueT
) 1 << qp_implies
[i
].p2
) & p2_mask
) != 0)
9806 fprintf (stderr
, "Clearing implied relation PR%d->PR%d\n",
9807 qp_implies
[i
].p1
, qp_implies
[i
].p2
);
9808 qp_implies
[i
] = qp_implies
[--qp_implieslen
];
9815 /* Add the PRs specified to the list of implied relations. */
9818 add_qp_imply (p1
, p2
)
9825 /* p0 is not meaningful here. */
9826 if (p1
== 0 || p2
== 0)
9832 /* If it exists already, ignore it. */
9833 for (i
= 0; i
< qp_implieslen
; i
++)
9835 if (qp_implies
[i
].p1
== p1
9836 && qp_implies
[i
].p2
== p2
9837 && qp_implies
[i
].path
== md
.path
9838 && !qp_implies
[i
].p2_branched
)
9842 if (qp_implieslen
== qp_impliestotlen
)
9844 qp_impliestotlen
+= 20;
9845 qp_implies
= (struct qp_imply
*)
9846 xrealloc ((void *) qp_implies
,
9847 qp_impliestotlen
* sizeof (struct qp_imply
));
9850 fprintf (stderr
, " Registering PR%d implies PR%d\n", p1
, p2
);
9851 qp_implies
[qp_implieslen
].p1
= p1
;
9852 qp_implies
[qp_implieslen
].p2
= p2
;
9853 qp_implies
[qp_implieslen
].path
= md
.path
;
9854 qp_implies
[qp_implieslen
++].p2_branched
= 0;
9856 /* Add in the implied transitive relations; for everything that p2 implies,
9857 make p1 imply that, too; for everything that implies p1, make it imply p2
9859 for (i
= 0; i
< qp_implieslen
; i
++)
9861 if (qp_implies
[i
].p1
== p2
)
9862 add_qp_imply (p1
, qp_implies
[i
].p2
);
9863 if (qp_implies
[i
].p2
== p1
)
9864 add_qp_imply (qp_implies
[i
].p1
, p2
);
9866 /* Add in mutex relations implied by this implies relation; for each mutex
9867 relation containing p2, duplicate it and replace p2 with p1. */
9868 bit
= (valueT
) 1 << p1
;
9869 mask
= (valueT
) 1 << p2
;
9870 for (i
= 0; i
< qp_mutexeslen
; i
++)
9872 if (qp_mutexes
[i
].prmask
& mask
)
9873 add_qp_mutex ((qp_mutexes
[i
].prmask
& ~mask
) | bit
);
9877 /* Add the PRs specified in the mask to the mutex list; this means that only
9878 one of the PRs can be true at any time. PR0 should never be included in
9888 if (qp_mutexeslen
== qp_mutexestotlen
)
9890 qp_mutexestotlen
+= 20;
9891 qp_mutexes
= (struct qpmutex
*)
9892 xrealloc ((void *) qp_mutexes
,
9893 qp_mutexestotlen
* sizeof (struct qpmutex
));
9897 fprintf (stderr
, " Registering mutex on");
9898 print_prmask (mask
);
9899 fprintf (stderr
, "\n");
9901 qp_mutexes
[qp_mutexeslen
].path
= md
.path
;
9902 qp_mutexes
[qp_mutexeslen
++].prmask
= mask
;
9906 has_suffix_p (name
, suffix
)
9910 size_t namelen
= strlen (name
);
9911 size_t sufflen
= strlen (suffix
);
9913 if (namelen
<= sufflen
)
9915 return strcmp (name
+ namelen
- sufflen
, suffix
) == 0;
9919 clear_register_values ()
9923 fprintf (stderr
, " Clearing register values\n");
9924 for (i
= 1; i
< NELEMS (gr_values
); i
++)
9925 gr_values
[i
].known
= 0;
9928 /* Keep track of register values/changes which affect DV tracking.
9930 optimization note: should add a flag to classes of insns where otherwise we
9931 have to examine a group of strings to identify them. */
9934 note_register_values (idesc
)
9935 struct ia64_opcode
*idesc
;
9937 valueT qp_changemask
= 0;
9940 /* Invalidate values for registers being written to. */
9941 for (i
= 0; i
< idesc
->num_outputs
; i
++)
9943 if (idesc
->operands
[i
] == IA64_OPND_R1
9944 || idesc
->operands
[i
] == IA64_OPND_R2
9945 || idesc
->operands
[i
] == IA64_OPND_R3
)
9947 int regno
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_GR
;
9948 if (regno
> 0 && regno
< NELEMS (gr_values
))
9949 gr_values
[regno
].known
= 0;
9951 else if (idesc
->operands
[i
] == IA64_OPND_R3_2
)
9953 int regno
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_GR
;
9954 if (regno
> 0 && regno
< 4)
9955 gr_values
[regno
].known
= 0;
9957 else if (idesc
->operands
[i
] == IA64_OPND_P1
9958 || idesc
->operands
[i
] == IA64_OPND_P2
)
9960 int regno
= CURR_SLOT
.opnd
[i
].X_add_number
- REG_P
;
9961 qp_changemask
|= (valueT
) 1 << regno
;
9963 else if (idesc
->operands
[i
] == IA64_OPND_PR
)
9965 if (idesc
->operands
[2] & (valueT
) 0x10000)
9966 qp_changemask
= ~(valueT
) 0x1FFFF | idesc
->operands
[2];
9968 qp_changemask
= idesc
->operands
[2];
9971 else if (idesc
->operands
[i
] == IA64_OPND_PR_ROT
)
9973 if (idesc
->operands
[1] & ((valueT
) 1 << 43))
9974 qp_changemask
= -((valueT
) 1 << 44) | idesc
->operands
[1];
9976 qp_changemask
= idesc
->operands
[1];
9977 qp_changemask
&= ~(valueT
) 0xFFFF;
9982 /* Always clear qp branch flags on any PR change. */
9983 /* FIXME there may be exceptions for certain compares. */
9984 clear_qp_branch_flag (qp_changemask
);
9986 /* Invalidate rotating registers on insns which affect RRBs in CFM. */
9987 if (idesc
->flags
& IA64_OPCODE_MOD_RRBS
)
9989 qp_changemask
|= ~(valueT
) 0xFFFF;
9990 if (strcmp (idesc
->name
, "clrrrb.pr") != 0)
9992 for (i
= 32; i
< 32 + md
.rot
.num_regs
; i
++)
9993 gr_values
[i
].known
= 0;
9995 clear_qp_mutex (qp_changemask
);
9996 clear_qp_implies (qp_changemask
, qp_changemask
);
9998 /* After a call, all register values are undefined, except those marked
10000 else if (strncmp (idesc
->name
, "br.call", 6) == 0
10001 || strncmp (idesc
->name
, "brl.call", 7) == 0)
10003 /* FIXME keep GR values which are marked as "safe_across_calls" */
10004 clear_register_values ();
10005 clear_qp_mutex (~qp_safe_across_calls
);
10006 clear_qp_implies (~qp_safe_across_calls
, ~qp_safe_across_calls
);
10007 clear_qp_branch_flag (~qp_safe_across_calls
);
10009 else if (is_interruption_or_rfi (idesc
)
10010 || is_taken_branch (idesc
))
10012 clear_register_values ();
10013 clear_qp_mutex (~(valueT
) 0);
10014 clear_qp_implies (~(valueT
) 0, ~(valueT
) 0);
10016 /* Look for mutex and implies relations. */
10017 else if ((idesc
->operands
[0] == IA64_OPND_P1
10018 || idesc
->operands
[0] == IA64_OPND_P2
)
10019 && (idesc
->operands
[1] == IA64_OPND_P1
10020 || idesc
->operands
[1] == IA64_OPND_P2
))
10022 int p1
= CURR_SLOT
.opnd
[0].X_add_number
- REG_P
;
10023 int p2
= CURR_SLOT
.opnd
[1].X_add_number
- REG_P
;
10024 valueT p1mask
= (p1
!= 0) ? (valueT
) 1 << p1
: 0;
10025 valueT p2mask
= (p2
!= 0) ? (valueT
) 1 << p2
: 0;
10027 /* If both PRs are PR0, we can't really do anything. */
10028 if (p1
== 0 && p2
== 0)
10031 fprintf (stderr
, " Ignoring PRs due to inclusion of p0\n");
10033 /* In general, clear mutexes and implies which include P1 or P2,
10034 with the following exceptions. */
10035 else if (has_suffix_p (idesc
->name
, ".or.andcm")
10036 || has_suffix_p (idesc
->name
, ".and.orcm"))
10038 clear_qp_implies (p2mask
, p1mask
);
10040 else if (has_suffix_p (idesc
->name
, ".andcm")
10041 || has_suffix_p (idesc
->name
, ".and"))
10043 clear_qp_implies (0, p1mask
| p2mask
);
10045 else if (has_suffix_p (idesc
->name
, ".orcm")
10046 || has_suffix_p (idesc
->name
, ".or"))
10048 clear_qp_mutex (p1mask
| p2mask
);
10049 clear_qp_implies (p1mask
| p2mask
, 0);
10055 clear_qp_implies (p1mask
| p2mask
, p1mask
| p2mask
);
10057 /* If one of the PRs is PR0, we call clear_qp_mutex. */
10058 if (p1
== 0 || p2
== 0)
10059 clear_qp_mutex (p1mask
| p2mask
);
10061 added
= update_qp_mutex (p1mask
| p2mask
);
10063 if (CURR_SLOT
.qp_regno
== 0
10064 || has_suffix_p (idesc
->name
, ".unc"))
10066 if (added
== 0 && p1
&& p2
)
10067 add_qp_mutex (p1mask
| p2mask
);
10068 if (CURR_SLOT
.qp_regno
!= 0)
10071 add_qp_imply (p1
, CURR_SLOT
.qp_regno
);
10073 add_qp_imply (p2
, CURR_SLOT
.qp_regno
);
10078 /* Look for mov imm insns into GRs. */
10079 else if (idesc
->operands
[0] == IA64_OPND_R1
10080 && (idesc
->operands
[1] == IA64_OPND_IMM22
10081 || idesc
->operands
[1] == IA64_OPND_IMMU64
)
10082 && CURR_SLOT
.opnd
[1].X_op
== O_constant
10083 && (strcmp (idesc
->name
, "mov") == 0
10084 || strcmp (idesc
->name
, "movl") == 0))
10086 int regno
= CURR_SLOT
.opnd
[0].X_add_number
- REG_GR
;
10087 if (regno
> 0 && regno
< NELEMS (gr_values
))
10089 gr_values
[regno
].known
= 1;
10090 gr_values
[regno
].value
= CURR_SLOT
.opnd
[1].X_add_number
;
10091 gr_values
[regno
].path
= md
.path
;
10094 fprintf (stderr
, " Know gr%d = ", regno
);
10095 fprintf_vma (stderr
, gr_values
[regno
].value
);
10096 fputs ("\n", stderr
);
10100 /* Look for dep.z imm insns. */
10101 else if (idesc
->operands
[0] == IA64_OPND_R1
10102 && idesc
->operands
[1] == IA64_OPND_IMM8
10103 && strcmp (idesc
->name
, "dep.z") == 0)
10105 int regno
= CURR_SLOT
.opnd
[0].X_add_number
- REG_GR
;
10106 if (regno
> 0 && regno
< NELEMS (gr_values
))
10108 valueT value
= CURR_SLOT
.opnd
[1].X_add_number
;
10110 if (CURR_SLOT
.opnd
[3].X_add_number
< 64)
10111 value
&= ((valueT
)1 << CURR_SLOT
.opnd
[3].X_add_number
) - 1;
10112 value
<<= CURR_SLOT
.opnd
[2].X_add_number
;
10113 gr_values
[regno
].known
= 1;
10114 gr_values
[regno
].value
= value
;
10115 gr_values
[regno
].path
= md
.path
;
10118 fprintf (stderr
, " Know gr%d = ", regno
);
10119 fprintf_vma (stderr
, gr_values
[regno
].value
);
10120 fputs ("\n", stderr
);
10126 clear_qp_mutex (qp_changemask
);
10127 clear_qp_implies (qp_changemask
, qp_changemask
);
10131 /* Return whether the given predicate registers are currently mutex. */
10134 qp_mutex (p1
, p2
, path
)
10144 mask
= ((valueT
) 1 << p1
) | (valueT
) 1 << p2
;
10145 for (i
= 0; i
< qp_mutexeslen
; i
++)
10147 if (qp_mutexes
[i
].path
>= path
10148 && (qp_mutexes
[i
].prmask
& mask
) == mask
)
10155 /* Return whether the given resource is in the given insn's list of chks
10156 Return 1 if the conflict is absolutely determined, 2 if it's a potential
10160 resources_match (rs
, idesc
, note
, qp_regno
, path
)
10162 struct ia64_opcode
*idesc
;
10167 struct rsrc specs
[MAX_SPECS
];
10170 /* If the marked resource's qp_regno and the given qp_regno are mutex,
10171 we don't need to check. One exception is note 11, which indicates that
10172 target predicates are written regardless of PR[qp]. */
10173 if (qp_mutex (rs
->qp_regno
, qp_regno
, path
)
10177 count
= specify_resource (rs
->dependency
, idesc
, DV_CHK
, specs
, note
, path
);
10178 while (count
-- > 0)
10180 /* UNAT checking is a bit more specific than other resources */
10181 if (rs
->dependency
->specifier
== IA64_RS_AR_UNAT
10182 && specs
[count
].mem_offset
.hint
10183 && rs
->mem_offset
.hint
)
10185 if (rs
->mem_offset
.base
== specs
[count
].mem_offset
.base
)
10187 if (((rs
->mem_offset
.offset
>> 3) & 0x3F) ==
10188 ((specs
[count
].mem_offset
.offset
>> 3) & 0x3F))
10195 /* Skip apparent PR write conflicts where both writes are an AND or both
10196 writes are an OR. */
10197 if (rs
->dependency
->specifier
== IA64_RS_PR
10198 || rs
->dependency
->specifier
== IA64_RS_PRr
10199 || rs
->dependency
->specifier
== IA64_RS_PR63
)
10201 if (specs
[count
].cmp_type
!= CMP_NONE
10202 && specs
[count
].cmp_type
== rs
->cmp_type
)
10205 fprintf (stderr
, " %s on parallel compare allowed (PR%d)\n",
10206 dv_mode
[rs
->dependency
->mode
],
10207 rs
->dependency
->specifier
!= IA64_RS_PR63
?
10208 specs
[count
].index
: 63);
10213 " %s on parallel compare conflict %s vs %s on PR%d\n",
10214 dv_mode
[rs
->dependency
->mode
],
10215 dv_cmp_type
[rs
->cmp_type
],
10216 dv_cmp_type
[specs
[count
].cmp_type
],
10217 rs
->dependency
->specifier
!= IA64_RS_PR63
?
10218 specs
[count
].index
: 63);
10222 /* If either resource is not specific, conservatively assume a conflict
10224 if (!specs
[count
].specific
|| !rs
->specific
)
10226 else if (specs
[count
].index
== rs
->index
)
10233 /* Indicate an instruction group break; if INSERT_STOP is non-zero, then
10234 insert a stop to create the break. Update all resource dependencies
10235 appropriately. If QP_REGNO is non-zero, only apply the break to resources
10236 which use the same QP_REGNO and have the link_to_qp_branch flag set.
10237 If SAVE_CURRENT is non-zero, don't affect resources marked by the current
10241 insn_group_break (insert_stop
, qp_regno
, save_current
)
10248 if (insert_stop
&& md
.num_slots_in_use
> 0)
10249 PREV_SLOT
.end_of_insn_group
= 1;
10253 fprintf (stderr
, " Insn group break%s",
10254 (insert_stop
? " (w/stop)" : ""));
10256 fprintf (stderr
, " effective for QP=%d", qp_regno
);
10257 fprintf (stderr
, "\n");
10261 while (i
< regdepslen
)
10263 const struct ia64_dependency
*dep
= regdeps
[i
].dependency
;
10266 && regdeps
[i
].qp_regno
!= qp_regno
)
10273 && CURR_SLOT
.src_file
== regdeps
[i
].file
10274 && CURR_SLOT
.src_line
== regdeps
[i
].line
)
10280 /* clear dependencies which are automatically cleared by a stop, or
10281 those that have reached the appropriate state of insn serialization */
10282 if (dep
->semantics
== IA64_DVS_IMPLIED
10283 || dep
->semantics
== IA64_DVS_IMPLIEDF
10284 || regdeps
[i
].insn_srlz
== STATE_SRLZ
)
10286 print_dependency ("Removing", i
);
10287 regdeps
[i
] = regdeps
[--regdepslen
];
10291 if (dep
->semantics
== IA64_DVS_DATA
10292 || dep
->semantics
== IA64_DVS_INSTR
10293 || dep
->semantics
== IA64_DVS_SPECIFIC
)
10295 if (regdeps
[i
].insn_srlz
== STATE_NONE
)
10296 regdeps
[i
].insn_srlz
= STATE_STOP
;
10297 if (regdeps
[i
].data_srlz
== STATE_NONE
)
10298 regdeps
[i
].data_srlz
= STATE_STOP
;
10305 /* Add the given resource usage spec to the list of active dependencies. */
10308 mark_resource (idesc
, dep
, spec
, depind
, path
)
10309 struct ia64_opcode
*idesc ATTRIBUTE_UNUSED
;
10310 const struct ia64_dependency
*dep ATTRIBUTE_UNUSED
;
10315 if (regdepslen
== regdepstotlen
)
10317 regdepstotlen
+= 20;
10318 regdeps
= (struct rsrc
*)
10319 xrealloc ((void *) regdeps
,
10320 regdepstotlen
* sizeof (struct rsrc
));
10323 regdeps
[regdepslen
] = *spec
;
10324 regdeps
[regdepslen
].depind
= depind
;
10325 regdeps
[regdepslen
].path
= path
;
10326 regdeps
[regdepslen
].file
= CURR_SLOT
.src_file
;
10327 regdeps
[regdepslen
].line
= CURR_SLOT
.src_line
;
10329 print_dependency ("Adding", regdepslen
);
10335 print_dependency (action
, depind
)
10336 const char *action
;
10341 fprintf (stderr
, " %s %s '%s'",
10342 action
, dv_mode
[(regdeps
[depind
].dependency
)->mode
],
10343 (regdeps
[depind
].dependency
)->name
);
10344 if (regdeps
[depind
].specific
&& regdeps
[depind
].index
>= 0)
10345 fprintf (stderr
, " (%d)", regdeps
[depind
].index
);
10346 if (regdeps
[depind
].mem_offset
.hint
)
10348 fputs (" ", stderr
);
10349 fprintf_vma (stderr
, regdeps
[depind
].mem_offset
.base
);
10350 fputs ("+", stderr
);
10351 fprintf_vma (stderr
, regdeps
[depind
].mem_offset
.offset
);
10353 fprintf (stderr
, "\n");
10358 instruction_serialization ()
10362 fprintf (stderr
, " Instruction serialization\n");
10363 for (i
= 0; i
< regdepslen
; i
++)
10364 if (regdeps
[i
].insn_srlz
== STATE_STOP
)
10365 regdeps
[i
].insn_srlz
= STATE_SRLZ
;
10369 data_serialization ()
10373 fprintf (stderr
, " Data serialization\n");
10374 while (i
< regdepslen
)
10376 if (regdeps
[i
].data_srlz
== STATE_STOP
10377 /* Note: as of 991210, all "other" dependencies are cleared by a
10378 data serialization. This might change with new tables */
10379 || (regdeps
[i
].dependency
)->semantics
== IA64_DVS_OTHER
)
10381 print_dependency ("Removing", i
);
10382 regdeps
[i
] = regdeps
[--regdepslen
];
10389 /* Insert stops and serializations as needed to avoid DVs. */
10392 remove_marked_resource (rs
)
10395 switch (rs
->dependency
->semantics
)
10397 case IA64_DVS_SPECIFIC
:
10399 fprintf (stderr
, "Implementation-specific, assume worst case...\n");
10400 /* ...fall through... */
10401 case IA64_DVS_INSTR
:
10403 fprintf (stderr
, "Inserting instr serialization\n");
10404 if (rs
->insn_srlz
< STATE_STOP
)
10405 insn_group_break (1, 0, 0);
10406 if (rs
->insn_srlz
< STATE_SRLZ
)
10408 struct slot oldslot
= CURR_SLOT
;
10409 /* Manually jam a srlz.i insn into the stream */
10410 memset (&CURR_SLOT
, 0, sizeof (CURR_SLOT
));
10411 CURR_SLOT
.user_template
= -1;
10412 CURR_SLOT
.idesc
= ia64_find_opcode ("srlz.i");
10413 instruction_serialization ();
10414 md
.curr_slot
= (md
.curr_slot
+ 1) % NUM_SLOTS
;
10415 if (++md
.num_slots_in_use
>= NUM_SLOTS
)
10416 emit_one_bundle ();
10417 CURR_SLOT
= oldslot
;
10419 insn_group_break (1, 0, 0);
10421 case IA64_DVS_OTHER
: /* as of rev2 (991220) of the DV tables, all
10422 "other" types of DV are eliminated
10423 by a data serialization */
10424 case IA64_DVS_DATA
:
10426 fprintf (stderr
, "Inserting data serialization\n");
10427 if (rs
->data_srlz
< STATE_STOP
)
10428 insn_group_break (1, 0, 0);
10430 struct slot oldslot
= CURR_SLOT
;
10431 /* Manually jam a srlz.d insn into the stream */
10432 memset (&CURR_SLOT
, 0, sizeof (CURR_SLOT
));
10433 CURR_SLOT
.user_template
= -1;
10434 CURR_SLOT
.idesc
= ia64_find_opcode ("srlz.d");
10435 data_serialization ();
10436 md
.curr_slot
= (md
.curr_slot
+ 1) % NUM_SLOTS
;
10437 if (++md
.num_slots_in_use
>= NUM_SLOTS
)
10438 emit_one_bundle ();
10439 CURR_SLOT
= oldslot
;
10442 case IA64_DVS_IMPLIED
:
10443 case IA64_DVS_IMPLIEDF
:
10445 fprintf (stderr
, "Inserting stop\n");
10446 insn_group_break (1, 0, 0);
10453 /* Check the resources used by the given opcode against the current dependency
10456 The check is run once for each execution path encountered. In this case,
10457 a unique execution path is the sequence of instructions following a code
10458 entry point, e.g. the following has three execution paths, one starting
10459 at L0, one at L1, and one at L2.
10468 check_dependencies (idesc
)
10469 struct ia64_opcode
*idesc
;
10471 const struct ia64_opcode_dependency
*opdeps
= idesc
->dependencies
;
10475 /* Note that the number of marked resources may change within the
10476 loop if in auto mode. */
10478 while (i
< regdepslen
)
10480 struct rsrc
*rs
= ®deps
[i
];
10481 const struct ia64_dependency
*dep
= rs
->dependency
;
10484 int start_over
= 0;
10486 if (dep
->semantics
== IA64_DVS_NONE
10487 || (chkind
= depends_on (rs
->depind
, idesc
)) == -1)
10493 note
= NOTE (opdeps
->chks
[chkind
]);
10495 /* Check this resource against each execution path seen thus far. */
10496 for (path
= 0; path
<= md
.path
; path
++)
10500 /* If the dependency wasn't on the path being checked, ignore it. */
10501 if (rs
->path
< path
)
10504 /* If the QP for this insn implies a QP which has branched, don't
10505 bother checking. Ed. NOTE: I don't think this check is terribly
10506 useful; what's the point of generating code which will only be
10507 reached if its QP is zero?
10508 This code was specifically inserted to handle the following code,
10509 based on notes from Intel's DV checking code, where p1 implies p2.
10515 if (CURR_SLOT
.qp_regno
!= 0)
10519 for (implies
= 0; implies
< qp_implieslen
; implies
++)
10521 if (qp_implies
[implies
].path
>= path
10522 && qp_implies
[implies
].p1
== CURR_SLOT
.qp_regno
10523 && qp_implies
[implies
].p2_branched
)
10533 if ((matchtype
= resources_match (rs
, idesc
, note
,
10534 CURR_SLOT
.qp_regno
, path
)) != 0)
10537 char pathmsg
[256] = "";
10538 char indexmsg
[256] = "";
10539 int certain
= (matchtype
== 1 && CURR_SLOT
.qp_regno
== 0);
10542 sprintf (pathmsg
, " when entry is at label '%s'",
10543 md
.entry_labels
[path
- 1]);
10544 if (matchtype
== 1 && rs
->index
>= 0)
10545 sprintf (indexmsg
, ", specific resource number is %d",
10547 sprintf (msg
, "Use of '%s' %s %s dependency '%s' (%s)%s%s",
10549 (certain
? "violates" : "may violate"),
10550 dv_mode
[dep
->mode
], dep
->name
,
10551 dv_sem
[dep
->semantics
],
10552 pathmsg
, indexmsg
);
10554 if (md
.explicit_mode
)
10556 as_warn ("%s", msg
);
10557 if (path
< md
.path
)
10558 as_warn (_("Only the first path encountering the conflict "
10560 as_warn_where (rs
->file
, rs
->line
,
10561 _("This is the location of the "
10562 "conflicting usage"));
10563 /* Don't bother checking other paths, to avoid duplicating
10564 the same warning */
10570 fprintf (stderr
, "%s @ %s:%d\n", msg
, rs
->file
, rs
->line
);
10572 remove_marked_resource (rs
);
10574 /* since the set of dependencies has changed, start over */
10575 /* FIXME -- since we're removing dvs as we go, we
10576 probably don't really need to start over... */
10589 /* Register new dependencies based on the given opcode. */
10592 mark_resources (idesc
)
10593 struct ia64_opcode
*idesc
;
10596 const struct ia64_opcode_dependency
*opdeps
= idesc
->dependencies
;
10597 int add_only_qp_reads
= 0;
10599 /* A conditional branch only uses its resources if it is taken; if it is
10600 taken, we stop following that path. The other branch types effectively
10601 *always* write their resources. If it's not taken, register only QP
10603 if (is_conditional_branch (idesc
) || is_interruption_or_rfi (idesc
))
10605 add_only_qp_reads
= 1;
10609 fprintf (stderr
, "Registering '%s' resource usage\n", idesc
->name
);
10611 for (i
= 0; i
< opdeps
->nregs
; i
++)
10613 const struct ia64_dependency
*dep
;
10614 struct rsrc specs
[MAX_SPECS
];
10619 dep
= ia64_find_dependency (opdeps
->regs
[i
]);
10620 note
= NOTE (opdeps
->regs
[i
]);
10622 if (add_only_qp_reads
10623 && !(dep
->mode
== IA64_DV_WAR
10624 && (dep
->specifier
== IA64_RS_PR
10625 || dep
->specifier
== IA64_RS_PRr
10626 || dep
->specifier
== IA64_RS_PR63
)))
10629 count
= specify_resource (dep
, idesc
, DV_REG
, specs
, note
, md
.path
);
10631 while (count
-- > 0)
10633 mark_resource (idesc
, dep
, &specs
[count
],
10634 DEP (opdeps
->regs
[i
]), md
.path
);
10637 /* The execution path may affect register values, which may in turn
10638 affect which indirect-access resources are accessed. */
10639 switch (dep
->specifier
)
10643 case IA64_RS_CPUID
:
10651 for (path
= 0; path
< md
.path
; path
++)
10653 count
= specify_resource (dep
, idesc
, DV_REG
, specs
, note
, path
);
10654 while (count
-- > 0)
10655 mark_resource (idesc
, dep
, &specs
[count
],
10656 DEP (opdeps
->regs
[i
]), path
);
10663 /* Remove dependencies when they no longer apply. */
10666 update_dependencies (idesc
)
10667 struct ia64_opcode
*idesc
;
10671 if (strcmp (idesc
->name
, "srlz.i") == 0)
10673 instruction_serialization ();
10675 else if (strcmp (idesc
->name
, "srlz.d") == 0)
10677 data_serialization ();
10679 else if (is_interruption_or_rfi (idesc
)
10680 || is_taken_branch (idesc
))
10682 /* Although technically the taken branch doesn't clear dependencies
10683 which require a srlz.[id], we don't follow the branch; the next
10684 instruction is assumed to start with a clean slate. */
10688 else if (is_conditional_branch (idesc
)
10689 && CURR_SLOT
.qp_regno
!= 0)
10691 int is_call
= strstr (idesc
->name
, ".call") != NULL
;
10693 for (i
= 0; i
< qp_implieslen
; i
++)
10695 /* If the conditional branch's predicate is implied by the predicate
10696 in an existing dependency, remove that dependency. */
10697 if (qp_implies
[i
].p2
== CURR_SLOT
.qp_regno
)
10700 /* Note that this implied predicate takes a branch so that if
10701 a later insn generates a DV but its predicate implies this
10702 one, we can avoid the false DV warning. */
10703 qp_implies
[i
].p2_branched
= 1;
10704 while (depind
< regdepslen
)
10706 if (regdeps
[depind
].qp_regno
== qp_implies
[i
].p1
)
10708 print_dependency ("Removing", depind
);
10709 regdeps
[depind
] = regdeps
[--regdepslen
];
10716 /* Any marked resources which have this same predicate should be
10717 cleared, provided that the QP hasn't been modified between the
10718 marking instruction and the branch. */
10721 insn_group_break (0, CURR_SLOT
.qp_regno
, 1);
10726 while (i
< regdepslen
)
10728 if (regdeps
[i
].qp_regno
== CURR_SLOT
.qp_regno
10729 && regdeps
[i
].link_to_qp_branch
10730 && (regdeps
[i
].file
!= CURR_SLOT
.src_file
10731 || regdeps
[i
].line
!= CURR_SLOT
.src_line
))
10733 /* Treat like a taken branch */
10734 print_dependency ("Removing", i
);
10735 regdeps
[i
] = regdeps
[--regdepslen
];
10744 /* Examine the current instruction for dependency violations. */
10748 struct ia64_opcode
*idesc
;
10752 fprintf (stderr
, "Checking %s for violations (line %d, %d/%d)\n",
10753 idesc
->name
, CURR_SLOT
.src_line
,
10754 idesc
->dependencies
->nchks
,
10755 idesc
->dependencies
->nregs
);
10758 /* Look through the list of currently marked resources; if the current
10759 instruction has the dependency in its chks list which uses that resource,
10760 check against the specific resources used. */
10761 check_dependencies (idesc
);
10763 /* Look up the instruction's regdeps (RAW writes, WAW writes, and WAR reads),
10764 then add them to the list of marked resources. */
10765 mark_resources (idesc
);
10767 /* There are several types of dependency semantics, and each has its own
10768 requirements for being cleared
10770 Instruction serialization (insns separated by interruption, rfi, or
10771 writer + srlz.i + reader, all in separate groups) clears DVS_INSTR.
10773 Data serialization (instruction serialization, or writer + srlz.d +
10774 reader, where writer and srlz.d are in separate groups) clears
10775 DVS_DATA. (This also clears DVS_OTHER, but that is not guaranteed to
10776 always be the case).
10778 Instruction group break (groups separated by stop, taken branch,
10779 interruption or rfi) clears DVS_IMPLIED and DVS_IMPLIEDF.
10781 update_dependencies (idesc
);
10783 /* Sometimes, knowing a register value allows us to avoid giving a false DV
10784 warning. Keep track of as many as possible that are useful. */
10785 note_register_values (idesc
);
10787 /* We don't need or want this anymore. */
10788 md
.mem_offset
.hint
= 0;
10793 /* Translate one line of assembly. Pseudo ops and labels do not show
10799 char *saved_input_line_pointer
, *mnemonic
;
10800 const struct pseudo_opcode
*pdesc
;
10801 struct ia64_opcode
*idesc
;
10802 unsigned char qp_regno
;
10803 unsigned int flags
;
10806 saved_input_line_pointer
= input_line_pointer
;
10807 input_line_pointer
= str
;
10809 /* extract the opcode (mnemonic): */
10811 mnemonic
= input_line_pointer
;
10812 ch
= get_symbol_end ();
10813 pdesc
= (struct pseudo_opcode
*) hash_find (md
.pseudo_hash
, mnemonic
);
10816 *input_line_pointer
= ch
;
10817 (*pdesc
->handler
) (pdesc
->arg
);
10821 /* Find the instruction descriptor matching the arguments. */
10823 idesc
= ia64_find_opcode (mnemonic
);
10824 *input_line_pointer
= ch
;
10827 as_bad ("Unknown opcode `%s'", mnemonic
);
10831 idesc
= parse_operands (idesc
);
10835 /* Handle the dynamic ops we can handle now: */
10836 if (idesc
->type
== IA64_TYPE_DYN
)
10838 if (strcmp (idesc
->name
, "add") == 0)
10840 if (CURR_SLOT
.opnd
[2].X_op
== O_register
10841 && CURR_SLOT
.opnd
[2].X_add_number
< 4)
10845 ia64_free_opcode (idesc
);
10846 idesc
= ia64_find_opcode (mnemonic
);
10848 else if (strcmp (idesc
->name
, "mov") == 0)
10850 enum ia64_opnd opnd1
, opnd2
;
10853 opnd1
= idesc
->operands
[0];
10854 opnd2
= idesc
->operands
[1];
10855 if (opnd1
== IA64_OPND_AR3
)
10857 else if (opnd2
== IA64_OPND_AR3
)
10861 if (CURR_SLOT
.opnd
[rop
].X_op
== O_register
)
10863 if (ar_is_only_in_integer_unit (CURR_SLOT
.opnd
[rop
].X_add_number
))
10864 mnemonic
= "mov.i";
10865 else if (ar_is_only_in_memory_unit (CURR_SLOT
.opnd
[rop
].X_add_number
))
10866 mnemonic
= "mov.m";
10874 ia64_free_opcode (idesc
);
10875 idesc
= ia64_find_opcode (mnemonic
);
10876 while (idesc
!= NULL
10877 && (idesc
->operands
[0] != opnd1
10878 || idesc
->operands
[1] != opnd2
))
10879 idesc
= get_next_opcode (idesc
);
10883 else if (strcmp (idesc
->name
, "mov.i") == 0
10884 || strcmp (idesc
->name
, "mov.m") == 0)
10886 enum ia64_opnd opnd1
, opnd2
;
10889 opnd1
= idesc
->operands
[0];
10890 opnd2
= idesc
->operands
[1];
10891 if (opnd1
== IA64_OPND_AR3
)
10893 else if (opnd2
== IA64_OPND_AR3
)
10897 if (CURR_SLOT
.opnd
[rop
].X_op
== O_register
)
10900 if (ar_is_only_in_integer_unit (CURR_SLOT
.opnd
[rop
].X_add_number
))
10902 else if (ar_is_only_in_memory_unit (CURR_SLOT
.opnd
[rop
].X_add_number
))
10904 if (unit
!= 'a' && unit
!= idesc
->name
[4])
10905 as_bad ("AR %d can only be accessed by %c-unit",
10906 (int) (CURR_SLOT
.opnd
[rop
].X_add_number
- REG_AR
),
10910 else if (strcmp (idesc
->name
, "hint.b") == 0)
10916 case hint_b_warning
:
10917 as_warn ("hint.b may be treated as nop");
10920 as_bad ("hint.b shouldn't be used");
10926 if (md
.qp
.X_op
== O_register
)
10928 qp_regno
= md
.qp
.X_add_number
- REG_P
;
10929 md
.qp
.X_op
= O_absent
;
10932 flags
= idesc
->flags
;
10934 if ((flags
& IA64_OPCODE_FIRST
) != 0)
10936 /* The alignment frag has to end with a stop bit only if the
10937 next instruction after the alignment directive has to be
10938 the first instruction in an instruction group. */
10941 while (align_frag
->fr_type
!= rs_align_code
)
10943 align_frag
= align_frag
->fr_next
;
10947 /* align_frag can be NULL if there are directives in
10949 if (align_frag
&& align_frag
->fr_next
== frag_now
)
10950 align_frag
->tc_frag_data
= 1;
10953 insn_group_break (1, 0, 0);
10957 if ((flags
& IA64_OPCODE_NO_PRED
) != 0 && qp_regno
!= 0)
10959 as_bad ("`%s' cannot be predicated", idesc
->name
);
10963 /* Build the instruction. */
10964 CURR_SLOT
.qp_regno
= qp_regno
;
10965 CURR_SLOT
.idesc
= idesc
;
10966 as_where (&CURR_SLOT
.src_file
, &CURR_SLOT
.src_line
);
10967 dwarf2_where (&CURR_SLOT
.debug_line
);
10969 /* Add unwind entries, if there are any. */
10970 if (unwind
.current_entry
)
10972 CURR_SLOT
.unwind_record
= unwind
.current_entry
;
10973 unwind
.current_entry
= NULL
;
10975 if (unwind
.pending_saves
)
10977 if (unwind
.pending_saves
->next
)
10979 /* Attach the next pending save to the next slot so that its
10980 slot number will get set correctly. */
10981 add_unwind_entry (unwind
.pending_saves
->next
, NOT_A_CHAR
);
10982 unwind
.pending_saves
= &unwind
.pending_saves
->next
->r
.record
.p
;
10985 unwind
.pending_saves
= NULL
;
10987 if (unwind
.proc_pending
.sym
&& S_IS_DEFINED (unwind
.proc_pending
.sym
))
10990 /* Check for dependency violations. */
10994 md
.curr_slot
= (md
.curr_slot
+ 1) % NUM_SLOTS
;
10995 if (++md
.num_slots_in_use
>= NUM_SLOTS
)
10996 emit_one_bundle ();
10998 if ((flags
& IA64_OPCODE_LAST
) != 0)
10999 insn_group_break (1, 0, 0);
11001 md
.last_text_seg
= now_seg
;
11004 input_line_pointer
= saved_input_line_pointer
;
11007 /* Called when symbol NAME cannot be found in the symbol table.
11008 Should be used for dynamic valued symbols only. */
11011 md_undefined_symbol (name
)
11012 char *name ATTRIBUTE_UNUSED
;
11017 /* Called for any expression that can not be recognized. When the
11018 function is called, `input_line_pointer' will point to the start of
11025 switch (*input_line_pointer
)
11028 ++input_line_pointer
;
11029 expression_and_evaluate (e
);
11030 if (*input_line_pointer
!= ']')
11032 as_bad ("Closing bracket missing");
11037 if (e
->X_op
!= O_register
11038 || e
->X_add_number
< REG_GR
11039 || e
->X_add_number
> REG_GR
+ 127)
11041 as_bad ("Index must be a general register");
11042 e
->X_add_number
= REG_GR
;
11045 ++input_line_pointer
;
11056 ignore_rest_of_line ();
11059 /* Return 1 if it's OK to adjust a reloc by replacing the symbol with
11060 a section symbol plus some offset. For relocs involving @fptr(),
11061 directives we don't want such adjustments since we need to have the
11062 original symbol's name in the reloc. */
11064 ia64_fix_adjustable (fix
)
11067 /* Prevent all adjustments to global symbols */
11068 if (S_IS_EXTERNAL (fix
->fx_addsy
) || S_IS_WEAK (fix
->fx_addsy
))
11071 switch (fix
->fx_r_type
)
11073 case BFD_RELOC_IA64_FPTR64I
:
11074 case BFD_RELOC_IA64_FPTR32MSB
:
11075 case BFD_RELOC_IA64_FPTR32LSB
:
11076 case BFD_RELOC_IA64_FPTR64MSB
:
11077 case BFD_RELOC_IA64_FPTR64LSB
:
11078 case BFD_RELOC_IA64_LTOFF_FPTR22
:
11079 case BFD_RELOC_IA64_LTOFF_FPTR64I
:
11089 ia64_force_relocation (fix
)
11092 switch (fix
->fx_r_type
)
11094 case BFD_RELOC_IA64_FPTR64I
:
11095 case BFD_RELOC_IA64_FPTR32MSB
:
11096 case BFD_RELOC_IA64_FPTR32LSB
:
11097 case BFD_RELOC_IA64_FPTR64MSB
:
11098 case BFD_RELOC_IA64_FPTR64LSB
:
11100 case BFD_RELOC_IA64_LTOFF22
:
11101 case BFD_RELOC_IA64_LTOFF64I
:
11102 case BFD_RELOC_IA64_LTOFF_FPTR22
:
11103 case BFD_RELOC_IA64_LTOFF_FPTR64I
:
11104 case BFD_RELOC_IA64_PLTOFF22
:
11105 case BFD_RELOC_IA64_PLTOFF64I
:
11106 case BFD_RELOC_IA64_PLTOFF64MSB
:
11107 case BFD_RELOC_IA64_PLTOFF64LSB
:
11109 case BFD_RELOC_IA64_LTOFF22X
:
11110 case BFD_RELOC_IA64_LDXMOV
:
11117 return generic_force_reloc (fix
);
11120 /* Decide from what point a pc-relative relocation is relative to,
11121 relative to the pc-relative fixup. Er, relatively speaking. */
11123 ia64_pcrel_from_section (fix
, sec
)
11127 unsigned long off
= fix
->fx_frag
->fr_address
+ fix
->fx_where
;
11129 if (bfd_get_section_flags (stdoutput
, sec
) & SEC_CODE
)
11136 /* Used to emit section-relative relocs for the dwarf2 debug data. */
11138 ia64_dwarf2_emit_offset (symbolS
*symbol
, unsigned int size
)
11142 expr
.X_op
= O_pseudo_fixup
;
11143 expr
.X_op_symbol
= pseudo_func
[FUNC_SEC_RELATIVE
].u
.sym
;
11144 expr
.X_add_number
= 0;
11145 expr
.X_add_symbol
= symbol
;
11146 emit_expr (&expr
, size
);
11149 /* This is called whenever some data item (not an instruction) needs a
11150 fixup. We pick the right reloc code depending on the byteorder
11151 currently in effect. */
11153 ia64_cons_fix_new (f
, where
, nbytes
, exp
)
11159 bfd_reloc_code_real_type code
;
11164 /* There are no reloc for 8 and 16 bit quantities, but we allow
11165 them here since they will work fine as long as the expression
11166 is fully defined at the end of the pass over the source file. */
11167 case 1: code
= BFD_RELOC_8
; break;
11168 case 2: code
= BFD_RELOC_16
; break;
11170 if (target_big_endian
)
11171 code
= BFD_RELOC_IA64_DIR32MSB
;
11173 code
= BFD_RELOC_IA64_DIR32LSB
;
11177 /* In 32-bit mode, data8 could mean function descriptors too. */
11178 if (exp
->X_op
== O_pseudo_fixup
11179 && exp
->X_op_symbol
11180 && S_GET_VALUE (exp
->X_op_symbol
) == FUNC_IPLT_RELOC
11181 && !(md
.flags
& EF_IA_64_ABI64
))
11183 if (target_big_endian
)
11184 code
= BFD_RELOC_IA64_IPLTMSB
;
11186 code
= BFD_RELOC_IA64_IPLTLSB
;
11187 exp
->X_op
= O_symbol
;
11192 if (target_big_endian
)
11193 code
= BFD_RELOC_IA64_DIR64MSB
;
11195 code
= BFD_RELOC_IA64_DIR64LSB
;
11200 if (exp
->X_op
== O_pseudo_fixup
11201 && exp
->X_op_symbol
11202 && S_GET_VALUE (exp
->X_op_symbol
) == FUNC_IPLT_RELOC
)
11204 if (target_big_endian
)
11205 code
= BFD_RELOC_IA64_IPLTMSB
;
11207 code
= BFD_RELOC_IA64_IPLTLSB
;
11208 exp
->X_op
= O_symbol
;
11214 as_bad ("Unsupported fixup size %d", nbytes
);
11215 ignore_rest_of_line ();
11219 if (exp
->X_op
== O_pseudo_fixup
)
11221 exp
->X_op
= O_symbol
;
11222 code
= ia64_gen_real_reloc_type (exp
->X_op_symbol
, code
);
11223 /* ??? If code unchanged, unsupported. */
11226 fix
= fix_new_exp (f
, where
, nbytes
, exp
, 0, code
);
11227 /* We need to store the byte order in effect in case we're going
11228 to fix an 8 or 16 bit relocation (for which there no real
11229 relocs available). See md_apply_fix(). */
11230 fix
->tc_fix_data
.bigendian
= target_big_endian
;
11233 /* Return the actual relocation we wish to associate with the pseudo
11234 reloc described by SYM and R_TYPE. SYM should be one of the
11235 symbols in the pseudo_func array, or NULL. */
11237 static bfd_reloc_code_real_type
11238 ia64_gen_real_reloc_type (sym
, r_type
)
11239 struct symbol
*sym
;
11240 bfd_reloc_code_real_type r_type
;
11242 bfd_reloc_code_real_type
new = 0;
11243 const char *type
= NULL
, *suffix
= "";
11250 switch (S_GET_VALUE (sym
))
11252 case FUNC_FPTR_RELATIVE
:
11255 case BFD_RELOC_IA64_IMM64
: new = BFD_RELOC_IA64_FPTR64I
; break;
11256 case BFD_RELOC_IA64_DIR32MSB
: new = BFD_RELOC_IA64_FPTR32MSB
; break;
11257 case BFD_RELOC_IA64_DIR32LSB
: new = BFD_RELOC_IA64_FPTR32LSB
; break;
11258 case BFD_RELOC_IA64_DIR64MSB
: new = BFD_RELOC_IA64_FPTR64MSB
; break;
11259 case BFD_RELOC_IA64_DIR64LSB
: new = BFD_RELOC_IA64_FPTR64LSB
; break;
11260 default: type
= "FPTR"; break;
11264 case FUNC_GP_RELATIVE
:
11267 case BFD_RELOC_IA64_IMM22
: new = BFD_RELOC_IA64_GPREL22
; break;
11268 case BFD_RELOC_IA64_IMM64
: new = BFD_RELOC_IA64_GPREL64I
; break;
11269 case BFD_RELOC_IA64_DIR32MSB
: new = BFD_RELOC_IA64_GPREL32MSB
; break;
11270 case BFD_RELOC_IA64_DIR32LSB
: new = BFD_RELOC_IA64_GPREL32LSB
; break;
11271 case BFD_RELOC_IA64_DIR64MSB
: new = BFD_RELOC_IA64_GPREL64MSB
; break;
11272 case BFD_RELOC_IA64_DIR64LSB
: new = BFD_RELOC_IA64_GPREL64LSB
; break;
11273 default: type
= "GPREL"; break;
11277 case FUNC_LT_RELATIVE
:
11280 case BFD_RELOC_IA64_IMM22
: new = BFD_RELOC_IA64_LTOFF22
; break;
11281 case BFD_RELOC_IA64_IMM64
: new = BFD_RELOC_IA64_LTOFF64I
; break;
11282 default: type
= "LTOFF"; break;
11286 case FUNC_LT_RELATIVE_X
:
11289 case BFD_RELOC_IA64_IMM22
: new = BFD_RELOC_IA64_LTOFF22X
; break;
11290 default: type
= "LTOFF"; suffix
= "X"; break;
11294 case FUNC_PC_RELATIVE
:
11297 case BFD_RELOC_IA64_IMM22
: new = BFD_RELOC_IA64_PCREL22
; break;
11298 case BFD_RELOC_IA64_IMM64
: new = BFD_RELOC_IA64_PCREL64I
; break;
11299 case BFD_RELOC_IA64_DIR32MSB
: new = BFD_RELOC_IA64_PCREL32MSB
; break;
11300 case BFD_RELOC_IA64_DIR32LSB
: new = BFD_RELOC_IA64_PCREL32LSB
; break;
11301 case BFD_RELOC_IA64_DIR64MSB
: new = BFD_RELOC_IA64_PCREL64MSB
; break;
11302 case BFD_RELOC_IA64_DIR64LSB
: new = BFD_RELOC_IA64_PCREL64LSB
; break;
11303 default: type
= "PCREL"; break;
11307 case FUNC_PLT_RELATIVE
:
11310 case BFD_RELOC_IA64_IMM22
: new = BFD_RELOC_IA64_PLTOFF22
; break;
11311 case BFD_RELOC_IA64_IMM64
: new = BFD_RELOC_IA64_PLTOFF64I
; break;
11312 case BFD_RELOC_IA64_DIR64MSB
: new = BFD_RELOC_IA64_PLTOFF64MSB
;break;
11313 case BFD_RELOC_IA64_DIR64LSB
: new = BFD_RELOC_IA64_PLTOFF64LSB
;break;
11314 default: type
= "PLTOFF"; break;
11318 case FUNC_SEC_RELATIVE
:
11321 case BFD_RELOC_IA64_DIR32MSB
: new = BFD_RELOC_IA64_SECREL32MSB
;break;
11322 case BFD_RELOC_IA64_DIR32LSB
: new = BFD_RELOC_IA64_SECREL32LSB
;break;
11323 case BFD_RELOC_IA64_DIR64MSB
: new = BFD_RELOC_IA64_SECREL64MSB
;break;
11324 case BFD_RELOC_IA64_DIR64LSB
: new = BFD_RELOC_IA64_SECREL64LSB
;break;
11325 default: type
= "SECREL"; break;
11329 case FUNC_SEG_RELATIVE
:
11332 case BFD_RELOC_IA64_DIR32MSB
: new = BFD_RELOC_IA64_SEGREL32MSB
;break;
11333 case BFD_RELOC_IA64_DIR32LSB
: new = BFD_RELOC_IA64_SEGREL32LSB
;break;
11334 case BFD_RELOC_IA64_DIR64MSB
: new = BFD_RELOC_IA64_SEGREL64MSB
;break;
11335 case BFD_RELOC_IA64_DIR64LSB
: new = BFD_RELOC_IA64_SEGREL64LSB
;break;
11336 default: type
= "SEGREL"; break;
11340 case FUNC_LTV_RELATIVE
:
11343 case BFD_RELOC_IA64_DIR32MSB
: new = BFD_RELOC_IA64_LTV32MSB
; break;
11344 case BFD_RELOC_IA64_DIR32LSB
: new = BFD_RELOC_IA64_LTV32LSB
; break;
11345 case BFD_RELOC_IA64_DIR64MSB
: new = BFD_RELOC_IA64_LTV64MSB
; break;
11346 case BFD_RELOC_IA64_DIR64LSB
: new = BFD_RELOC_IA64_LTV64LSB
; break;
11347 default: type
= "LTV"; break;
11351 case FUNC_LT_FPTR_RELATIVE
:
11354 case BFD_RELOC_IA64_IMM22
:
11355 new = BFD_RELOC_IA64_LTOFF_FPTR22
; break;
11356 case BFD_RELOC_IA64_IMM64
:
11357 new = BFD_RELOC_IA64_LTOFF_FPTR64I
; break;
11358 case BFD_RELOC_IA64_DIR32MSB
:
11359 new = BFD_RELOC_IA64_LTOFF_FPTR32MSB
; break;
11360 case BFD_RELOC_IA64_DIR32LSB
:
11361 new = BFD_RELOC_IA64_LTOFF_FPTR32LSB
; break;
11362 case BFD_RELOC_IA64_DIR64MSB
:
11363 new = BFD_RELOC_IA64_LTOFF_FPTR64MSB
; break;
11364 case BFD_RELOC_IA64_DIR64LSB
:
11365 new = BFD_RELOC_IA64_LTOFF_FPTR64LSB
; break;
11367 type
= "LTOFF_FPTR"; break;
11371 case FUNC_TP_RELATIVE
:
11374 case BFD_RELOC_IA64_IMM14
: new = BFD_RELOC_IA64_TPREL14
; break;
11375 case BFD_RELOC_IA64_IMM22
: new = BFD_RELOC_IA64_TPREL22
; break;
11376 case BFD_RELOC_IA64_IMM64
: new = BFD_RELOC_IA64_TPREL64I
; break;
11377 case BFD_RELOC_IA64_DIR64MSB
: new = BFD_RELOC_IA64_TPREL64MSB
; break;
11378 case BFD_RELOC_IA64_DIR64LSB
: new = BFD_RELOC_IA64_TPREL64LSB
; break;
11379 default: type
= "TPREL"; break;
11383 case FUNC_LT_TP_RELATIVE
:
11386 case BFD_RELOC_IA64_IMM22
:
11387 new = BFD_RELOC_IA64_LTOFF_TPREL22
; break;
11389 type
= "LTOFF_TPREL"; break;
11393 case FUNC_DTP_MODULE
:
11396 case BFD_RELOC_IA64_DIR64MSB
:
11397 new = BFD_RELOC_IA64_DTPMOD64MSB
; break;
11398 case BFD_RELOC_IA64_DIR64LSB
:
11399 new = BFD_RELOC_IA64_DTPMOD64LSB
; break;
11401 type
= "DTPMOD"; break;
11405 case FUNC_LT_DTP_MODULE
:
11408 case BFD_RELOC_IA64_IMM22
:
11409 new = BFD_RELOC_IA64_LTOFF_DTPMOD22
; break;
11411 type
= "LTOFF_DTPMOD"; break;
11415 case FUNC_DTP_RELATIVE
:
11418 case BFD_RELOC_IA64_DIR32MSB
:
11419 new = BFD_RELOC_IA64_DTPREL32MSB
; break;
11420 case BFD_RELOC_IA64_DIR32LSB
:
11421 new = BFD_RELOC_IA64_DTPREL32LSB
; break;
11422 case BFD_RELOC_IA64_DIR64MSB
:
11423 new = BFD_RELOC_IA64_DTPREL64MSB
; break;
11424 case BFD_RELOC_IA64_DIR64LSB
:
11425 new = BFD_RELOC_IA64_DTPREL64LSB
; break;
11426 case BFD_RELOC_IA64_IMM14
:
11427 new = BFD_RELOC_IA64_DTPREL14
; break;
11428 case BFD_RELOC_IA64_IMM22
:
11429 new = BFD_RELOC_IA64_DTPREL22
; break;
11430 case BFD_RELOC_IA64_IMM64
:
11431 new = BFD_RELOC_IA64_DTPREL64I
; break;
11433 type
= "DTPREL"; break;
11437 case FUNC_LT_DTP_RELATIVE
:
11440 case BFD_RELOC_IA64_IMM22
:
11441 new = BFD_RELOC_IA64_LTOFF_DTPREL22
; break;
11443 type
= "LTOFF_DTPREL"; break;
11447 case FUNC_IPLT_RELOC
:
11450 case BFD_RELOC_IA64_IPLTMSB
: return r_type
;
11451 case BFD_RELOC_IA64_IPLTLSB
: return r_type
;
11452 default: type
= "IPLT"; break;
11470 case BFD_RELOC_IA64_DIR32MSB
: width
= 32; suffix
= "MSB"; break;
11471 case BFD_RELOC_IA64_DIR32LSB
: width
= 32; suffix
= "LSB"; break;
11472 case BFD_RELOC_IA64_DIR64MSB
: width
= 64; suffix
= "MSB"; break;
11473 case BFD_RELOC_IA64_DIR64LSB
: width
= 64; suffix
= "LSB"; break;
11474 case BFD_RELOC_UNUSED
: width
= 13; break;
11475 case BFD_RELOC_IA64_IMM14
: width
= 14; break;
11476 case BFD_RELOC_IA64_IMM22
: width
= 22; break;
11477 case BFD_RELOC_IA64_IMM64
: width
= 64; suffix
= "I"; break;
11481 /* This should be an error, but since previously there wasn't any
11482 diagnostic here, dont't make it fail because of this for now. */
11483 as_warn ("Cannot express %s%d%s relocation", type
, width
, suffix
);
11488 /* Here is where generate the appropriate reloc for pseudo relocation
11491 ia64_validate_fix (fix
)
11494 switch (fix
->fx_r_type
)
11496 case BFD_RELOC_IA64_FPTR64I
:
11497 case BFD_RELOC_IA64_FPTR32MSB
:
11498 case BFD_RELOC_IA64_FPTR64LSB
:
11499 case BFD_RELOC_IA64_LTOFF_FPTR22
:
11500 case BFD_RELOC_IA64_LTOFF_FPTR64I
:
11501 if (fix
->fx_offset
!= 0)
11502 as_bad_where (fix
->fx_file
, fix
->fx_line
,
11503 "No addend allowed in @fptr() relocation");
11511 fix_insn (fix
, odesc
, value
)
11513 const struct ia64_operand
*odesc
;
11516 bfd_vma insn
[3], t0
, t1
, control_bits
;
11521 slot
= fix
->fx_where
& 0x3;
11522 fixpos
= fix
->fx_frag
->fr_literal
+ (fix
->fx_where
- slot
);
11524 /* Bundles are always in little-endian byte order */
11525 t0
= bfd_getl64 (fixpos
);
11526 t1
= bfd_getl64 (fixpos
+ 8);
11527 control_bits
= t0
& 0x1f;
11528 insn
[0] = (t0
>> 5) & 0x1ffffffffffLL
;
11529 insn
[1] = ((t0
>> 46) & 0x3ffff) | ((t1
& 0x7fffff) << 18);
11530 insn
[2] = (t1
>> 23) & 0x1ffffffffffLL
;
11533 if (odesc
- elf64_ia64_operands
== IA64_OPND_IMMU64
)
11535 insn
[1] = (value
>> 22) & 0x1ffffffffffLL
;
11536 insn
[2] |= (((value
& 0x7f) << 13)
11537 | (((value
>> 7) & 0x1ff) << 27)
11538 | (((value
>> 16) & 0x1f) << 22)
11539 | (((value
>> 21) & 0x1) << 21)
11540 | (((value
>> 63) & 0x1) << 36));
11542 else if (odesc
- elf64_ia64_operands
== IA64_OPND_IMMU62
)
11544 if (value
& ~0x3fffffffffffffffULL
)
11545 err
= "integer operand out of range";
11546 insn
[1] = (value
>> 21) & 0x1ffffffffffLL
;
11547 insn
[2] |= (((value
& 0xfffff) << 6) | (((value
>> 20) & 0x1) << 36));
11549 else if (odesc
- elf64_ia64_operands
== IA64_OPND_TGT64
)
11552 insn
[1] = ((value
>> 20) & 0x7fffffffffLL
) << 2;
11553 insn
[2] |= ((((value
>> 59) & 0x1) << 36)
11554 | (((value
>> 0) & 0xfffff) << 13));
11557 err
= (*odesc
->insert
) (odesc
, value
, insn
+ slot
);
11560 as_bad_where (fix
->fx_file
, fix
->fx_line
, err
);
11562 t0
= control_bits
| (insn
[0] << 5) | (insn
[1] << 46);
11563 t1
= ((insn
[1] >> 18) & 0x7fffff) | (insn
[2] << 23);
11564 number_to_chars_littleendian (fixpos
+ 0, t0
, 8);
11565 number_to_chars_littleendian (fixpos
+ 8, t1
, 8);
11568 /* Attempt to simplify or even eliminate a fixup. The return value is
11569 ignored; perhaps it was once meaningful, but now it is historical.
11570 To indicate that a fixup has been eliminated, set FIXP->FX_DONE.
11572 If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry
11576 md_apply_fix (fix
, valP
, seg
)
11579 segT seg ATTRIBUTE_UNUSED
;
11582 valueT value
= *valP
;
11584 fixpos
= fix
->fx_frag
->fr_literal
+ fix
->fx_where
;
11588 switch (fix
->fx_r_type
)
11590 case BFD_RELOC_IA64_PCREL21B
: break;
11591 case BFD_RELOC_IA64_PCREL21BI
: break;
11592 case BFD_RELOC_IA64_PCREL21F
: break;
11593 case BFD_RELOC_IA64_PCREL21M
: break;
11594 case BFD_RELOC_IA64_PCREL60B
: break;
11595 case BFD_RELOC_IA64_PCREL22
: break;
11596 case BFD_RELOC_IA64_PCREL64I
: break;
11597 case BFD_RELOC_IA64_PCREL32MSB
: break;
11598 case BFD_RELOC_IA64_PCREL32LSB
: break;
11599 case BFD_RELOC_IA64_PCREL64MSB
: break;
11600 case BFD_RELOC_IA64_PCREL64LSB
: break;
11602 fix
->fx_r_type
= ia64_gen_real_reloc_type (pseudo_func
[FUNC_PC_RELATIVE
].u
.sym
,
11609 switch (fix
->fx_r_type
)
11611 case BFD_RELOC_UNUSED
:
11612 /* This must be a TAG13 or TAG13b operand. There are no external
11613 relocs defined for them, so we must give an error. */
11614 as_bad_where (fix
->fx_file
, fix
->fx_line
,
11615 "%s must have a constant value",
11616 elf64_ia64_operands
[fix
->tc_fix_data
.opnd
].desc
);
11620 case BFD_RELOC_IA64_TPREL14
:
11621 case BFD_RELOC_IA64_TPREL22
:
11622 case BFD_RELOC_IA64_TPREL64I
:
11623 case BFD_RELOC_IA64_LTOFF_TPREL22
:
11624 case BFD_RELOC_IA64_LTOFF_DTPMOD22
:
11625 case BFD_RELOC_IA64_DTPREL14
:
11626 case BFD_RELOC_IA64_DTPREL22
:
11627 case BFD_RELOC_IA64_DTPREL64I
:
11628 case BFD_RELOC_IA64_LTOFF_DTPREL22
:
11629 S_SET_THREAD_LOCAL (fix
->fx_addsy
);
11636 else if (fix
->tc_fix_data
.opnd
== IA64_OPND_NIL
)
11638 if (fix
->tc_fix_data
.bigendian
)
11639 number_to_chars_bigendian (fixpos
, value
, fix
->fx_size
);
11641 number_to_chars_littleendian (fixpos
, value
, fix
->fx_size
);
11646 fix_insn (fix
, elf64_ia64_operands
+ fix
->tc_fix_data
.opnd
, value
);
11651 /* Generate the BFD reloc to be stuck in the object file from the
11652 fixup used internally in the assembler. */
11655 tc_gen_reloc (sec
, fixp
)
11656 asection
*sec ATTRIBUTE_UNUSED
;
11661 reloc
= xmalloc (sizeof (*reloc
));
11662 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
11663 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
11664 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
11665 reloc
->addend
= fixp
->fx_offset
;
11666 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
11670 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
11671 "Cannot represent %s relocation in object file",
11672 bfd_get_reloc_code_name (fixp
->fx_r_type
));
11677 /* Turn a string in input_line_pointer into a floating point constant
11678 of type TYPE, and store the appropriate bytes in *LIT. The number
11679 of LITTLENUMS emitted is stored in *SIZE. An error message is
11680 returned, or NULL on OK. */
11682 #define MAX_LITTLENUMS 5
11685 md_atof (type
, lit
, size
)
11690 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
11720 return "Bad call to MD_ATOF()";
11722 t
= atof_ieee (input_line_pointer
, type
, words
);
11724 input_line_pointer
= t
;
11726 (*ia64_float_to_chars
) (lit
, words
, prec
);
11730 /* It is 10 byte floating point with 6 byte padding. */
11731 memset (&lit
[10], 0, 6);
11732 *size
= 8 * sizeof (LITTLENUM_TYPE
);
11735 *size
= prec
* sizeof (LITTLENUM_TYPE
);
11740 /* Handle ia64 specific semantics of the align directive. */
11743 ia64_md_do_align (n
, fill
, len
, max
)
11744 int n ATTRIBUTE_UNUSED
;
11745 const char *fill ATTRIBUTE_UNUSED
;
11746 int len ATTRIBUTE_UNUSED
;
11747 int max ATTRIBUTE_UNUSED
;
11749 if (subseg_text_p (now_seg
))
11750 ia64_flush_insns ();
11753 /* This is called from HANDLE_ALIGN in write.c. Fill in the contents
11754 of an rs_align_code fragment. */
11757 ia64_handle_align (fragp
)
11762 const unsigned char *nop
;
11764 if (fragp
->fr_type
!= rs_align_code
)
11767 /* Check if this frag has to end with a stop bit. */
11768 nop
= fragp
->tc_frag_data
? le_nop_stop
: le_nop
;
11770 bytes
= fragp
->fr_next
->fr_address
- fragp
->fr_address
- fragp
->fr_fix
;
11771 p
= fragp
->fr_literal
+ fragp
->fr_fix
;
11773 /* If no paddings are needed, we check if we need a stop bit. */
11774 if (!bytes
&& fragp
->tc_frag_data
)
11776 if (fragp
->fr_fix
< 16)
11778 /* FIXME: It won't work with
11780 alloc r32=ar.pfs,1,2,4,0
11784 as_bad_where (fragp
->fr_file
, fragp
->fr_line
,
11785 _("Can't add stop bit to mark end of instruction group"));
11788 /* Bundles are always in little-endian byte order. Make sure
11789 the previous bundle has the stop bit. */
11793 /* Make sure we are on a 16-byte boundary, in case someone has been
11794 putting data into a text section. */
11797 int fix
= bytes
& 15;
11798 memset (p
, 0, fix
);
11801 fragp
->fr_fix
+= fix
;
11804 /* Instruction bundles are always little-endian. */
11805 memcpy (p
, nop
, 16);
11806 fragp
->fr_var
= 16;
11810 ia64_float_to_chars_bigendian (char *lit
, LITTLENUM_TYPE
*words
,
11815 number_to_chars_bigendian (lit
, (long) (*words
++),
11816 sizeof (LITTLENUM_TYPE
));
11817 lit
+= sizeof (LITTLENUM_TYPE
);
11822 ia64_float_to_chars_littleendian (char *lit
, LITTLENUM_TYPE
*words
,
11827 number_to_chars_littleendian (lit
, (long) (words
[prec
]),
11828 sizeof (LITTLENUM_TYPE
));
11829 lit
+= sizeof (LITTLENUM_TYPE
);
11834 ia64_elf_section_change_hook (void)
11836 if (elf_section_type (now_seg
) == SHT_IA_64_UNWIND
11837 && elf_linked_to_section (now_seg
) == NULL
)
11838 elf_linked_to_section (now_seg
) = text_section
;
11839 dot_byteorder (-1);
11842 /* Check if a label should be made global. */
11844 ia64_check_label (symbolS
*label
)
11846 if (*input_line_pointer
== ':')
11848 S_SET_EXTERNAL (label
);
11849 input_line_pointer
++;
11853 /* Used to remember where .alias and .secalias directives are seen. We
11854 will rename symbol and section names when we are about to output
11855 the relocatable file. */
11858 char *file
; /* The file where the directive is seen. */
11859 unsigned int line
; /* The line number the directive is at. */
11860 const char *name
; /* The orignale name of the symbol. */
11863 /* Called for .alias and .secalias directives. If SECTION is 1, it is
11864 .secalias. Otherwise, it is .alias. */
11866 dot_alias (int section
)
11868 char *name
, *alias
;
11872 const char *error_string
;
11875 struct hash_control
*ahash
, *nhash
;
11878 name
= input_line_pointer
;
11879 delim
= get_symbol_end ();
11880 end_name
= input_line_pointer
;
11883 if (name
== end_name
)
11885 as_bad (_("expected symbol name"));
11886 ignore_rest_of_line ();
11890 SKIP_WHITESPACE ();
11892 if (*input_line_pointer
!= ',')
11895 as_bad (_("expected comma after \"%s\""), name
);
11897 ignore_rest_of_line ();
11901 input_line_pointer
++;
11903 ia64_canonicalize_symbol_name (name
);
11905 /* We call demand_copy_C_string to check if alias string is valid.
11906 There should be a closing `"' and no `\0' in the string. */
11907 alias
= demand_copy_C_string (&len
);
11910 ignore_rest_of_line ();
11914 /* Make a copy of name string. */
11915 len
= strlen (name
) + 1;
11916 obstack_grow (¬es
, name
, len
);
11917 name
= obstack_finish (¬es
);
11922 ahash
= secalias_hash
;
11923 nhash
= secalias_name_hash
;
11928 ahash
= alias_hash
;
11929 nhash
= alias_name_hash
;
11932 /* Check if alias has been used before. */
11933 h
= (struct alias
*) hash_find (ahash
, alias
);
11936 if (strcmp (h
->name
, name
))
11937 as_bad (_("`%s' is already the alias of %s `%s'"),
11938 alias
, kind
, h
->name
);
11942 /* Check if name already has an alias. */
11943 a
= (const char *) hash_find (nhash
, name
);
11946 if (strcmp (a
, alias
))
11947 as_bad (_("%s `%s' already has an alias `%s'"), kind
, name
, a
);
11951 h
= (struct alias
*) xmalloc (sizeof (struct alias
));
11952 as_where (&h
->file
, &h
->line
);
11955 error_string
= hash_jam (ahash
, alias
, (PTR
) h
);
11958 as_fatal (_("inserting \"%s\" into %s alias hash table failed: %s"),
11959 alias
, kind
, error_string
);
11963 error_string
= hash_jam (nhash
, name
, (PTR
) alias
);
11966 as_fatal (_("inserting \"%s\" into %s name hash table failed: %s"),
11967 alias
, kind
, error_string
);
11969 obstack_free (¬es
, name
);
11970 obstack_free (¬es
, alias
);
11973 demand_empty_rest_of_line ();
11976 /* It renames the original symbol name to its alias. */
11978 do_alias (const char *alias
, PTR value
)
11980 struct alias
*h
= (struct alias
*) value
;
11981 symbolS
*sym
= symbol_find (h
->name
);
11984 as_warn_where (h
->file
, h
->line
,
11985 _("symbol `%s' aliased to `%s' is not used"),
11988 S_SET_NAME (sym
, (char *) alias
);
11991 /* Called from write_object_file. */
11993 ia64_adjust_symtab (void)
11995 hash_traverse (alias_hash
, do_alias
);
11998 /* It renames the original section name to its alias. */
12000 do_secalias (const char *alias
, PTR value
)
12002 struct alias
*h
= (struct alias
*) value
;
12003 segT sec
= bfd_get_section_by_name (stdoutput
, h
->name
);
12006 as_warn_where (h
->file
, h
->line
,
12007 _("section `%s' aliased to `%s' is not used"),
12013 /* Called from write_object_file. */
12015 ia64_frob_file (void)
12017 hash_traverse (secalias_hash
, do_secalias
);