1 /* tc-alpha.c - Processor-specific code for the DEC Alpha AXP CPU.
2 Copyright (C) 1989-2016 Free Software Foundation, Inc.
3 Contributed by Carnegie Mellon University, 1993.
4 Written by Alessandro Forin, based on earlier gas-1.38 target CPU files.
5 Modified by Ken Raeburn for gas-2.x and ECOFF support.
6 Modified by Richard Henderson for ELF support.
7 Modified by Klaus K"ampf for EVAX (OpenVMS/Alpha) support.
9 This file is part of GAS, the GNU Assembler.
11 GAS is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3, or (at your option)
16 GAS is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with GAS; see the file COPYING. If not, write to the Free
23 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
26 /* Mach Operating System
27 Copyright (c) 1993 Carnegie Mellon University
30 Permission to use, copy, modify and distribute this software and its
31 documentation is hereby granted, provided that both the copyright
32 notice and this permission notice appear in all copies of the
33 software, derivative works or modified versions, and any portions
34 thereof, and that both notices appear in supporting documentation.
36 CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
37 CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
38 ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
40 Carnegie Mellon requests users of this software to return to
42 Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
43 School of Computer Science
44 Carnegie Mellon University
45 Pittsburgh PA 15213-3890
47 any improvements or extensions that they make and grant Carnegie the
48 rights to redistribute these changes. */
52 #include "struc-symbol.h"
55 #include "opcode/alpha.h"
58 #include "elf/alpha.h"
66 #include "dwarf2dbg.h"
67 #include "dw2gencfi.h"
68 #include "safe-ctype.h"
72 #define TOKENIZE_ERROR -1
73 #define TOKENIZE_ERROR_REPORT -2
74 #define MAX_INSN_FIXUPS 2
75 #define MAX_INSN_ARGS 5
77 /* Used since new relocation types are introduced in this
78 file (DUMMY_RELOC_LITUSE_*) */
79 typedef int extended_bfd_reloc_code_real_type
;
84 /* bfd_reloc_code_real_type reloc; */
85 extended_bfd_reloc_code_real_type reloc
;
87 /* The symbol of the item in the linkage section. */
90 /* The symbol of the procedure descriptor. */
99 struct alpha_fixup fixups
[MAX_INSN_FIXUPS
];
117 void (*emit
) (const expressionS
*, int, const void *);
119 enum alpha_macro_arg argsets
[16];
122 /* Extra expression types. */
124 #define O_pregister O_md1 /* O_register, in parentheses. */
125 #define O_cpregister O_md2 /* + a leading comma. */
127 /* The alpha_reloc_op table below depends on the ordering of these. */
128 #define O_literal O_md3 /* !literal relocation. */
129 #define O_lituse_addr O_md4 /* !lituse_addr relocation. */
130 #define O_lituse_base O_md5 /* !lituse_base relocation. */
131 #define O_lituse_bytoff O_md6 /* !lituse_bytoff relocation. */
132 #define O_lituse_jsr O_md7 /* !lituse_jsr relocation. */
133 #define O_lituse_tlsgd O_md8 /* !lituse_tlsgd relocation. */
134 #define O_lituse_tlsldm O_md9 /* !lituse_tlsldm relocation. */
135 #define O_lituse_jsrdirect O_md10 /* !lituse_jsrdirect relocation. */
136 #define O_gpdisp O_md11 /* !gpdisp relocation. */
137 #define O_gprelhigh O_md12 /* !gprelhigh relocation. */
138 #define O_gprellow O_md13 /* !gprellow relocation. */
139 #define O_gprel O_md14 /* !gprel relocation. */
140 #define O_samegp O_md15 /* !samegp relocation. */
141 #define O_tlsgd O_md16 /* !tlsgd relocation. */
142 #define O_tlsldm O_md17 /* !tlsldm relocation. */
143 #define O_gotdtprel O_md18 /* !gotdtprel relocation. */
144 #define O_dtprelhi O_md19 /* !dtprelhi relocation. */
145 #define O_dtprello O_md20 /* !dtprello relocation. */
146 #define O_dtprel O_md21 /* !dtprel relocation. */
147 #define O_gottprel O_md22 /* !gottprel relocation. */
148 #define O_tprelhi O_md23 /* !tprelhi relocation. */
149 #define O_tprello O_md24 /* !tprello relocation. */
150 #define O_tprel O_md25 /* !tprel relocation. */
152 #define DUMMY_RELOC_LITUSE_ADDR (BFD_RELOC_UNUSED + 1)
153 #define DUMMY_RELOC_LITUSE_BASE (BFD_RELOC_UNUSED + 2)
154 #define DUMMY_RELOC_LITUSE_BYTOFF (BFD_RELOC_UNUSED + 3)
155 #define DUMMY_RELOC_LITUSE_JSR (BFD_RELOC_UNUSED + 4)
156 #define DUMMY_RELOC_LITUSE_TLSGD (BFD_RELOC_UNUSED + 5)
157 #define DUMMY_RELOC_LITUSE_TLSLDM (BFD_RELOC_UNUSED + 6)
158 #define DUMMY_RELOC_LITUSE_JSRDIRECT (BFD_RELOC_UNUSED + 7)
160 #define USER_RELOC_P(R) ((R) >= O_literal && (R) <= O_tprel)
162 /* Macros for extracting the type and number of encoded register tokens. */
164 #define is_ir_num(x) (((x) & 32) == 0)
165 #define is_fpr_num(x) (((x) & 32) != 0)
166 #define regno(x) ((x) & 31)
168 /* Something odd inherited from the old assembler. */
170 #define note_gpreg(R) (alpha_gprmask |= (1 << (R)))
171 #define note_fpreg(R) (alpha_fprmask |= (1 << (R)))
173 /* Predicates for 16- and 32-bit ranges */
174 /* XXX: The non-shift version appears to trigger a compiler bug when
175 cross-assembling from x86 w/ gcc 2.7.2. */
178 #define range_signed_16(x) \
179 (((offsetT) (x) >> 15) == 0 || ((offsetT) (x) >> 15) == -1)
180 #define range_signed_32(x) \
181 (((offsetT) (x) >> 31) == 0 || ((offsetT) (x) >> 31) == -1)
183 #define range_signed_16(x) ((offsetT) (x) >= -(offsetT) 0x8000 && \
184 (offsetT) (x) <= (offsetT) 0x7FFF)
185 #define range_signed_32(x) ((offsetT) (x) >= -(offsetT) 0x80000000 && \
186 (offsetT) (x) <= (offsetT) 0x7FFFFFFF)
189 /* Macros for sign extending from 16- and 32-bits. */
190 /* XXX: The cast macros will work on all the systems that I care about,
191 but really a predicate should be found to use the non-cast forms. */
194 #define sign_extend_16(x) ((short) (x))
195 #define sign_extend_32(x) ((int) (x))
197 #define sign_extend_16(x) ((offsetT) (((x) & 0xFFFF) ^ 0x8000) - 0x8000)
198 #define sign_extend_32(x) ((offsetT) (((x) & 0xFFFFFFFF) \
199 ^ 0x80000000) - 0x80000000)
202 /* Macros to build tokens. */
204 #define set_tok_reg(t, r) (memset (&(t), 0, sizeof (t)), \
205 (t).X_op = O_register, \
206 (t).X_add_number = (r))
207 #define set_tok_preg(t, r) (memset (&(t), 0, sizeof (t)), \
208 (t).X_op = O_pregister, \
209 (t).X_add_number = (r))
210 #define set_tok_cpreg(t, r) (memset (&(t), 0, sizeof (t)), \
211 (t).X_op = O_cpregister, \
212 (t).X_add_number = (r))
213 #define set_tok_freg(t, r) (memset (&(t), 0, sizeof (t)), \
214 (t).X_op = O_register, \
215 (t).X_add_number = (r) + 32)
216 #define set_tok_sym(t, s, a) (memset (&(t), 0, sizeof (t)), \
217 (t).X_op = O_symbol, \
218 (t).X_add_symbol = (s), \
219 (t).X_add_number = (a))
220 #define set_tok_const(t, n) (memset (&(t), 0, sizeof (t)), \
221 (t).X_op = O_constant, \
222 (t).X_add_number = (n))
224 /* Generic assembler global variables which must be defined by all
227 /* Characters which always start a comment. */
228 const char comment_chars
[] = "#";
230 /* Characters which start a comment at the beginning of a line. */
231 const char line_comment_chars
[] = "#";
233 /* Characters which may be used to separate multiple commands on a
235 const char line_separator_chars
[] = ";";
237 /* Characters which are used to indicate an exponent in a floating
239 const char EXP_CHARS
[] = "eE";
241 /* Characters which mean that a number is a floating point constant,
243 /* XXX: Do all of these really get used on the alpha?? */
244 const char FLT_CHARS
[] = "rRsSfFdDxXpP";
247 const char *md_shortopts
= "Fm:g+1h:HG:";
249 const char *md_shortopts
= "Fm:gG:";
252 struct option md_longopts
[] =
254 #define OPTION_32ADDR (OPTION_MD_BASE)
255 { "32addr", no_argument
, NULL
, OPTION_32ADDR
},
256 #define OPTION_RELAX (OPTION_32ADDR + 1)
257 { "relax", no_argument
, NULL
, OPTION_RELAX
},
259 #define OPTION_MDEBUG (OPTION_RELAX + 1)
260 #define OPTION_NO_MDEBUG (OPTION_MDEBUG + 1)
261 { "mdebug", no_argument
, NULL
, OPTION_MDEBUG
},
262 { "no-mdebug", no_argument
, NULL
, OPTION_NO_MDEBUG
},
265 #define OPTION_REPLACE (OPTION_RELAX + 1)
266 #define OPTION_NOREPLACE (OPTION_REPLACE+1)
267 { "replace", no_argument
, NULL
, OPTION_REPLACE
},
268 { "noreplace", no_argument
, NULL
, OPTION_NOREPLACE
},
270 { NULL
, no_argument
, NULL
, 0 }
273 size_t md_longopts_size
= sizeof (md_longopts
);
277 #define AXP_REG_R16 16
278 #define AXP_REG_R17 17
280 #define AXP_REG_T9 22
282 #define AXP_REG_T10 23
284 #define AXP_REG_T11 24
286 #define AXP_REG_T12 25
287 #define AXP_REG_AI 25
289 #define AXP_REG_FP 29
292 #define AXP_REG_GP AXP_REG_PV
294 #endif /* OBJ_EVAX */
296 /* The cpu for which we are generating code. */
297 static unsigned alpha_target
= AXP_OPCODE_BASE
;
298 static const char *alpha_target_name
= "<all>";
300 /* The hash table of instruction opcodes. */
301 static struct hash_control
*alpha_opcode_hash
;
303 /* The hash table of macro opcodes. */
304 static struct hash_control
*alpha_macro_hash
;
307 /* The $gp relocation symbol. */
308 static symbolS
*alpha_gp_symbol
;
310 /* XXX: what is this, and why is it exported? */
311 valueT alpha_gp_value
;
314 /* The current $gp register. */
315 static int alpha_gp_register
= AXP_REG_GP
;
317 /* A table of the register symbols. */
318 static symbolS
*alpha_register_table
[64];
320 /* Constant sections, or sections of constants. */
322 static segT alpha_lita_section
;
325 segT alpha_link_section
;
328 static segT alpha_lit8_section
;
331 /* Symbols referring to said sections. */
333 static symbolS
*alpha_lita_symbol
;
336 static symbolS
*alpha_link_symbol
;
339 static symbolS
*alpha_lit8_symbol
;
342 /* Literal for .litX+0x8000 within .lita. */
344 static offsetT alpha_lit8_literal
;
347 /* Is the assembler not allowed to use $at? */
348 static int alpha_noat_on
= 0;
350 /* Are macros enabled? */
351 static int alpha_macros_on
= 1;
353 /* Are floats disabled? */
354 static int alpha_nofloats_on
= 0;
356 /* Are addresses 32 bit? */
357 static int alpha_addr32_on
= 0;
359 /* Symbol labelling the current insn. When the Alpha gas sees
362 and the section happens to not be on an eight byte boundary, it
363 will align both the symbol and the .quad to an eight byte boundary. */
364 static symbolS
*alpha_insn_label
;
365 #if defined(OBJ_ELF) || defined (OBJ_EVAX)
366 static symbolS
*alpha_prologue_label
;
370 /* Symbol associate with the current jsr instruction. */
371 static symbolS
*alpha_linkage_symbol
;
374 /* Whether we should automatically align data generation pseudo-ops.
375 .align 0 will turn this off. */
376 static int alpha_auto_align_on
= 1;
378 /* The known current alignment of the current section. */
379 static int alpha_current_align
;
381 /* These are exported to ECOFF code. */
382 unsigned long alpha_gprmask
, alpha_fprmask
;
384 /* Whether the debugging option was seen. */
385 static int alpha_debug
;
388 /* Whether we are emitting an mdebug section. */
389 int alpha_flag_mdebug
= -1;
393 /* Whether to perform the VMS procedure call optimization. */
394 int alpha_flag_replace
= 1;
397 /* Don't fully resolve relocations, allowing code movement in the linker. */
398 static int alpha_flag_relax
;
400 /* What value to give to bfd_set_gp_size. */
401 static int g_switch_value
= 8;
404 /* Collect information about current procedure here. */
405 struct alpha_evax_procs
407 symbolS
*symbol
; /* Proc pdesc symbol. */
409 int framereg
; /* Register for frame pointer. */
410 int framesize
; /* Size of frame. */
422 /* Linked list of .linkage fixups. */
423 struct alpha_linkage_fixups
*alpha_linkage_fixup_root
;
424 static struct alpha_linkage_fixups
*alpha_linkage_fixup_tail
;
426 /* Current procedure descriptor. */
427 static struct alpha_evax_procs
*alpha_evax_proc
;
428 static struct alpha_evax_procs alpha_evax_proc_data
;
430 static int alpha_flag_hash_long_names
= 0; /* -+ */
431 static int alpha_flag_show_after_trunc
= 0; /* -H */
433 /* If the -+ switch is given, then a hash is appended to any name that is
434 longer than 64 characters, else longer symbol names are truncated. */
439 /* A table to map the spelling of a relocation operand into an appropriate
440 bfd_reloc_code_real_type type. The table is assumed to be ordered such
441 that op-O_literal indexes into it. */
443 #define ALPHA_RELOC_TABLE(op) \
444 (&alpha_reloc_op[ ((!USER_RELOC_P (op)) \
446 : (int) (op) - (int) O_literal) ])
448 #define DEF(NAME, RELOC, REQ, ALLOW) \
449 { #NAME, sizeof(#NAME)-1, O_##NAME, RELOC, REQ, ALLOW}
451 static const struct alpha_reloc_op_tag
453 const char *name
; /* String to lookup. */
454 size_t length
; /* Size of the string. */
455 operatorT op
; /* Which operator to use. */
456 extended_bfd_reloc_code_real_type reloc
;
457 unsigned int require_seq
: 1; /* Require a sequence number. */
458 unsigned int allow_seq
: 1; /* Allow a sequence number. */
462 DEF (literal
, BFD_RELOC_ALPHA_ELF_LITERAL
, 0, 1),
463 DEF (lituse_addr
, DUMMY_RELOC_LITUSE_ADDR
, 1, 1),
464 DEF (lituse_base
, DUMMY_RELOC_LITUSE_BASE
, 1, 1),
465 DEF (lituse_bytoff
, DUMMY_RELOC_LITUSE_BYTOFF
, 1, 1),
466 DEF (lituse_jsr
, DUMMY_RELOC_LITUSE_JSR
, 1, 1),
467 DEF (lituse_tlsgd
, DUMMY_RELOC_LITUSE_TLSGD
, 1, 1),
468 DEF (lituse_tlsldm
, DUMMY_RELOC_LITUSE_TLSLDM
, 1, 1),
469 DEF (lituse_jsrdirect
, DUMMY_RELOC_LITUSE_JSRDIRECT
, 1, 1),
470 DEF (gpdisp
, BFD_RELOC_ALPHA_GPDISP
, 1, 1),
471 DEF (gprelhigh
, BFD_RELOC_ALPHA_GPREL_HI16
, 0, 0),
472 DEF (gprellow
, BFD_RELOC_ALPHA_GPREL_LO16
, 0, 0),
473 DEF (gprel
, BFD_RELOC_GPREL16
, 0, 0),
474 DEF (samegp
, BFD_RELOC_ALPHA_BRSGP
, 0, 0),
475 DEF (tlsgd
, BFD_RELOC_ALPHA_TLSGD
, 0, 1),
476 DEF (tlsldm
, BFD_RELOC_ALPHA_TLSLDM
, 0, 1),
477 DEF (gotdtprel
, BFD_RELOC_ALPHA_GOTDTPREL16
, 0, 0),
478 DEF (dtprelhi
, BFD_RELOC_ALPHA_DTPREL_HI16
, 0, 0),
479 DEF (dtprello
, BFD_RELOC_ALPHA_DTPREL_LO16
, 0, 0),
480 DEF (dtprel
, BFD_RELOC_ALPHA_DTPREL16
, 0, 0),
481 DEF (gottprel
, BFD_RELOC_ALPHA_GOTTPREL16
, 0, 0),
482 DEF (tprelhi
, BFD_RELOC_ALPHA_TPREL_HI16
, 0, 0),
483 DEF (tprello
, BFD_RELOC_ALPHA_TPREL_LO16
, 0, 0),
484 DEF (tprel
, BFD_RELOC_ALPHA_TPREL16
, 0, 0),
489 static const int alpha_num_reloc_op
490 = sizeof (alpha_reloc_op
) / sizeof (*alpha_reloc_op
);
491 #endif /* RELOC_OP_P */
493 /* Maximum # digits needed to hold the largest sequence #. */
494 #define ALPHA_RELOC_DIGITS 25
496 /* Structure to hold explicit sequence information. */
497 struct alpha_reloc_tag
499 fixS
*master
; /* The literal reloc. */
501 struct symbol
*sym
; /* Linkage section item symbol. */
502 struct symbol
*psym
; /* Pdesc symbol. */
504 fixS
*slaves
; /* Head of linked list of lituses. */
505 segT segment
; /* Segment relocs are in or undefined_section. */
506 long sequence
; /* Sequence #. */
507 unsigned n_master
; /* # of literals. */
508 unsigned n_slaves
; /* # of lituses. */
509 unsigned saw_tlsgd
: 1; /* True if ... */
510 unsigned saw_tlsldm
: 1;
511 unsigned saw_lu_tlsgd
: 1;
512 unsigned saw_lu_tlsldm
: 1;
513 unsigned multi_section_p
: 1; /* True if more than one section was used. */
514 char string
[1]; /* Printable form of sequence to hash with. */
517 /* Hash table to link up literals with the appropriate lituse. */
518 static struct hash_control
*alpha_literal_hash
;
520 /* Sequence numbers for internal use by macros. */
521 static long next_sequence_num
= -1;
523 /* A table of CPU names and opcode sets. */
525 static const struct cpu_type
532 /* Ad hoc convention: cpu number gets palcode, process code doesn't.
533 This supports usage under DU 4.0b that does ".arch ev4", and
534 usage in MILO that does -m21064. Probably something more
535 specific like -m21064-pal should be used, but oh well. */
537 { "21064", AXP_OPCODE_BASE
|AXP_OPCODE_EV4
},
538 { "21064a", AXP_OPCODE_BASE
|AXP_OPCODE_EV4
},
539 { "21066", AXP_OPCODE_BASE
|AXP_OPCODE_EV4
},
540 { "21068", AXP_OPCODE_BASE
|AXP_OPCODE_EV4
},
541 { "21164", AXP_OPCODE_BASE
|AXP_OPCODE_EV5
},
542 { "21164a", AXP_OPCODE_BASE
|AXP_OPCODE_EV5
|AXP_OPCODE_BWX
},
543 { "21164pc", (AXP_OPCODE_BASE
|AXP_OPCODE_EV5
|AXP_OPCODE_BWX
545 { "21264", (AXP_OPCODE_BASE
|AXP_OPCODE_EV6
|AXP_OPCODE_BWX
546 |AXP_OPCODE_MAX
|AXP_OPCODE_CIX
) },
547 { "21264a", (AXP_OPCODE_BASE
|AXP_OPCODE_EV6
|AXP_OPCODE_BWX
548 |AXP_OPCODE_MAX
|AXP_OPCODE_CIX
) },
549 { "21264b", (AXP_OPCODE_BASE
|AXP_OPCODE_EV6
|AXP_OPCODE_BWX
550 |AXP_OPCODE_MAX
|AXP_OPCODE_CIX
) },
552 { "ev4", AXP_OPCODE_BASE
},
553 { "ev45", AXP_OPCODE_BASE
},
554 { "lca45", AXP_OPCODE_BASE
},
555 { "ev5", AXP_OPCODE_BASE
},
556 { "ev56", AXP_OPCODE_BASE
|AXP_OPCODE_BWX
},
557 { "pca56", AXP_OPCODE_BASE
|AXP_OPCODE_BWX
|AXP_OPCODE_MAX
},
558 { "ev6", AXP_OPCODE_BASE
|AXP_OPCODE_BWX
|AXP_OPCODE_MAX
|AXP_OPCODE_CIX
},
559 { "ev67", AXP_OPCODE_BASE
|AXP_OPCODE_BWX
|AXP_OPCODE_MAX
|AXP_OPCODE_CIX
},
560 { "ev68", AXP_OPCODE_BASE
|AXP_OPCODE_BWX
|AXP_OPCODE_MAX
|AXP_OPCODE_CIX
},
562 { "all", AXP_OPCODE_BASE
},
566 /* Some instruction sets indexed by lg(size). */
567 static const char * const sextX_op
[] = { "sextb", "sextw", "sextl", NULL
};
568 static const char * const insXl_op
[] = { "insbl", "inswl", "insll", "insql" };
569 static const char * const insXh_op
[] = { NULL
, "inswh", "inslh", "insqh" };
570 static const char * const extXl_op
[] = { "extbl", "extwl", "extll", "extql" };
571 static const char * const extXh_op
[] = { NULL
, "extwh", "extlh", "extqh" };
572 static const char * const mskXl_op
[] = { "mskbl", "mskwl", "mskll", "mskql" };
573 static const char * const mskXh_op
[] = { NULL
, "mskwh", "msklh", "mskqh" };
574 static const char * const stX_op
[] = { "stb", "stw", "stl", "stq" };
575 static const char * const ldXu_op
[] = { "ldbu", "ldwu", NULL
, NULL
};
577 static void assemble_insn (const struct alpha_opcode
*, const expressionS
*, int, struct alpha_insn
*, extended_bfd_reloc_code_real_type
);
578 static void emit_insn (struct alpha_insn
*);
579 static void assemble_tokens (const char *, const expressionS
*, int, int);
581 static const char *s_alpha_section_name (void);
582 static symbolS
*add_to_link_pool (symbolS
*, offsetT
);
585 static struct alpha_reloc_tag
*
586 get_alpha_reloc_tag (long sequence
)
588 char buffer
[ALPHA_RELOC_DIGITS
];
589 struct alpha_reloc_tag
*info
;
591 sprintf (buffer
, "!%ld", sequence
);
593 info
= (struct alpha_reloc_tag
*) hash_find (alpha_literal_hash
, buffer
);
596 size_t len
= strlen (buffer
);
599 info
= (struct alpha_reloc_tag
*)
600 xcalloc (sizeof (struct alpha_reloc_tag
) + len
, 1);
602 info
->segment
= now_seg
;
603 info
->sequence
= sequence
;
604 strcpy (info
->string
, buffer
);
605 errmsg
= hash_insert (alpha_literal_hash
, info
->string
, (void *) info
);
607 as_fatal ("%s", errmsg
);
620 alpha_adjust_relocs (bfd
*abfd ATTRIBUTE_UNUSED
,
622 void * ptr ATTRIBUTE_UNUSED
)
624 segment_info_type
*seginfo
= seg_info (sec
);
630 /* If seginfo is NULL, we did not create this section; don't do
631 anything with it. By using a pointer to a pointer, we can update
632 the links in place. */
636 /* If there are no relocations, skip the section. */
637 if (! seginfo
->fix_root
)
640 /* First rebuild the fixup chain without the explicit lituse and
641 gpdisp_lo16 relocs. */
642 prevP
= &seginfo
->fix_root
;
643 for (fixp
= seginfo
->fix_root
; fixp
; fixp
= next
)
645 next
= fixp
->fx_next
;
646 fixp
->fx_next
= (fixS
*) 0;
648 switch (fixp
->fx_r_type
)
650 case BFD_RELOC_ALPHA_LITUSE
:
651 if (fixp
->tc_fix_data
.info
->n_master
== 0)
652 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
653 _("No !literal!%ld was found"),
654 fixp
->tc_fix_data
.info
->sequence
);
656 if (fixp
->fx_offset
== LITUSE_ALPHA_TLSGD
)
658 if (! fixp
->tc_fix_data
.info
->saw_tlsgd
)
659 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
660 _("No !tlsgd!%ld was found"),
661 fixp
->tc_fix_data
.info
->sequence
);
663 else if (fixp
->fx_offset
== LITUSE_ALPHA_TLSLDM
)
665 if (! fixp
->tc_fix_data
.info
->saw_tlsldm
)
666 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
667 _("No !tlsldm!%ld was found"),
668 fixp
->tc_fix_data
.info
->sequence
);
673 case BFD_RELOC_ALPHA_GPDISP_LO16
:
674 if (fixp
->tc_fix_data
.info
->n_master
== 0)
675 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
676 _("No ldah !gpdisp!%ld was found"),
677 fixp
->tc_fix_data
.info
->sequence
);
680 case BFD_RELOC_ALPHA_ELF_LITERAL
:
681 if (fixp
->tc_fix_data
.info
682 && (fixp
->tc_fix_data
.info
->saw_tlsgd
683 || fixp
->tc_fix_data
.info
->saw_tlsldm
))
689 prevP
= &fixp
->fx_next
;
694 /* Go back and re-chain dependent relocations. They are currently
695 linked through the next_reloc field in reverse order, so as we
696 go through the next_reloc chain, we effectively reverse the chain
699 Except if there is more than one !literal for a given sequence
700 number. In that case, the programmer and/or compiler is not sure
701 how control flows from literal to lituse, and we can't be sure to
702 get the relaxation correct.
704 ??? Well, actually we could, if there are enough lituses such that
705 we can make each literal have at least one of each lituse type
706 present. Not implemented.
708 Also suppress the optimization if the !literals/!lituses are spread
709 in different segments. This can happen with "intersting" uses of
710 inline assembly; examples are present in the Linux kernel semaphores. */
712 for (fixp
= seginfo
->fix_root
; fixp
; fixp
= next
)
714 next
= fixp
->fx_next
;
715 switch (fixp
->fx_r_type
)
717 case BFD_RELOC_ALPHA_TLSGD
:
718 case BFD_RELOC_ALPHA_TLSLDM
:
719 if (!fixp
->tc_fix_data
.info
)
721 if (fixp
->tc_fix_data
.info
->n_master
== 0)
723 else if (fixp
->tc_fix_data
.info
->n_master
> 1)
725 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
726 _("too many !literal!%ld for %s"),
727 fixp
->tc_fix_data
.info
->sequence
,
728 (fixp
->fx_r_type
== BFD_RELOC_ALPHA_TLSGD
729 ? "!tlsgd" : "!tlsldm"));
733 fixp
->tc_fix_data
.info
->master
->fx_next
= fixp
->fx_next
;
734 fixp
->fx_next
= fixp
->tc_fix_data
.info
->master
;
735 fixp
= fixp
->fx_next
;
738 case BFD_RELOC_ALPHA_ELF_LITERAL
:
739 if (fixp
->tc_fix_data
.info
740 && fixp
->tc_fix_data
.info
->n_master
== 1
741 && ! fixp
->tc_fix_data
.info
->multi_section_p
)
743 for (slave
= fixp
->tc_fix_data
.info
->slaves
;
745 slave
= slave
->tc_fix_data
.next_reloc
)
747 slave
->fx_next
= fixp
->fx_next
;
748 fixp
->fx_next
= slave
;
753 case BFD_RELOC_ALPHA_GPDISP_HI16
:
754 if (fixp
->tc_fix_data
.info
->n_slaves
== 0)
755 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
756 _("No lda !gpdisp!%ld was found"),
757 fixp
->tc_fix_data
.info
->sequence
);
760 slave
= fixp
->tc_fix_data
.info
->slaves
;
761 slave
->fx_next
= next
;
762 fixp
->fx_next
= slave
;
772 /* Before the relocations are written, reorder them, so that user
773 supplied !lituse relocations follow the appropriate !literal
774 relocations, and similarly for !gpdisp relocations. */
777 alpha_before_fix (void)
779 if (alpha_literal_hash
)
780 bfd_map_over_sections (stdoutput
, alpha_adjust_relocs
, NULL
);
787 debug_exp (expressionS tok
[], int ntok
)
791 fprintf (stderr
, "debug_exp: %d tokens", ntok
);
792 for (i
= 0; i
< ntok
; i
++)
794 expressionS
*t
= &tok
[i
];
799 default: name
= "unknown"; break;
800 case O_illegal
: name
= "O_illegal"; break;
801 case O_absent
: name
= "O_absent"; break;
802 case O_constant
: name
= "O_constant"; break;
803 case O_symbol
: name
= "O_symbol"; break;
804 case O_symbol_rva
: name
= "O_symbol_rva"; break;
805 case O_register
: name
= "O_register"; break;
806 case O_big
: name
= "O_big"; break;
807 case O_uminus
: name
= "O_uminus"; break;
808 case O_bit_not
: name
= "O_bit_not"; break;
809 case O_logical_not
: name
= "O_logical_not"; break;
810 case O_multiply
: name
= "O_multiply"; break;
811 case O_divide
: name
= "O_divide"; break;
812 case O_modulus
: name
= "O_modulus"; break;
813 case O_left_shift
: name
= "O_left_shift"; break;
814 case O_right_shift
: name
= "O_right_shift"; break;
815 case O_bit_inclusive_or
: name
= "O_bit_inclusive_or"; break;
816 case O_bit_or_not
: name
= "O_bit_or_not"; break;
817 case O_bit_exclusive_or
: name
= "O_bit_exclusive_or"; break;
818 case O_bit_and
: name
= "O_bit_and"; break;
819 case O_add
: name
= "O_add"; break;
820 case O_subtract
: name
= "O_subtract"; break;
821 case O_eq
: name
= "O_eq"; break;
822 case O_ne
: name
= "O_ne"; break;
823 case O_lt
: name
= "O_lt"; break;
824 case O_le
: name
= "O_le"; break;
825 case O_ge
: name
= "O_ge"; break;
826 case O_gt
: name
= "O_gt"; break;
827 case O_logical_and
: name
= "O_logical_and"; break;
828 case O_logical_or
: name
= "O_logical_or"; break;
829 case O_index
: name
= "O_index"; break;
830 case O_pregister
: name
= "O_pregister"; break;
831 case O_cpregister
: name
= "O_cpregister"; break;
832 case O_literal
: name
= "O_literal"; break;
833 case O_lituse_addr
: name
= "O_lituse_addr"; break;
834 case O_lituse_base
: name
= "O_lituse_base"; break;
835 case O_lituse_bytoff
: name
= "O_lituse_bytoff"; break;
836 case O_lituse_jsr
: name
= "O_lituse_jsr"; break;
837 case O_lituse_tlsgd
: name
= "O_lituse_tlsgd"; break;
838 case O_lituse_tlsldm
: name
= "O_lituse_tlsldm"; break;
839 case O_lituse_jsrdirect
: name
= "O_lituse_jsrdirect"; break;
840 case O_gpdisp
: name
= "O_gpdisp"; break;
841 case O_gprelhigh
: name
= "O_gprelhigh"; break;
842 case O_gprellow
: name
= "O_gprellow"; break;
843 case O_gprel
: name
= "O_gprel"; break;
844 case O_samegp
: name
= "O_samegp"; break;
845 case O_tlsgd
: name
= "O_tlsgd"; break;
846 case O_tlsldm
: name
= "O_tlsldm"; break;
847 case O_gotdtprel
: name
= "O_gotdtprel"; break;
848 case O_dtprelhi
: name
= "O_dtprelhi"; break;
849 case O_dtprello
: name
= "O_dtprello"; break;
850 case O_dtprel
: name
= "O_dtprel"; break;
851 case O_gottprel
: name
= "O_gottprel"; break;
852 case O_tprelhi
: name
= "O_tprelhi"; break;
853 case O_tprello
: name
= "O_tprello"; break;
854 case O_tprel
: name
= "O_tprel"; break;
857 fprintf (stderr
, ", %s(%s, %s, %d)", name
,
858 (t
->X_add_symbol
) ? S_GET_NAME (t
->X_add_symbol
) : "--",
859 (t
->X_op_symbol
) ? S_GET_NAME (t
->X_op_symbol
) : "--",
860 (int) t
->X_add_number
);
862 fprintf (stderr
, "\n");
867 /* Parse the arguments to an opcode. */
870 tokenize_arguments (char *str
,
874 expressionS
*end_tok
= tok
+ ntok
;
875 char *old_input_line_pointer
;
876 int saw_comma
= 0, saw_arg
= 0;
878 expressionS
*orig_tok
= tok
;
882 const struct alpha_reloc_op_tag
*r
;
885 int reloc_found_p
= 0;
888 memset (tok
, 0, sizeof (*tok
) * ntok
);
890 /* Save and restore input_line_pointer around this function. */
891 old_input_line_pointer
= input_line_pointer
;
892 input_line_pointer
= str
;
895 /* ??? Wrest control of ! away from the regular expression parser. */
896 is_end_of_line
[(unsigned char) '!'] = 1;
899 while (tok
< end_tok
&& *input_line_pointer
)
902 switch (*input_line_pointer
)
909 /* A relocation operand can be placed after the normal operand on an
910 assembly language statement, and has the following form:
911 !relocation_type!sequence_number. */
914 /* Only support one relocation op per insn. */
915 as_bad (_("More than one relocation op per insn"));
922 ++input_line_pointer
;
924 c
= get_symbol_name (&p
);
926 /* Parse !relocation_type. */
927 len
= input_line_pointer
- p
;
930 as_bad (_("No relocation operand"));
934 r
= &alpha_reloc_op
[0];
935 for (i
= alpha_num_reloc_op
- 1; i
>= 0; i
--, r
++)
936 if (len
== r
->length
&& memcmp (p
, r
->name
, len
) == 0)
940 as_bad (_("Unknown relocation operand: !%s"), p
);
944 *input_line_pointer
= c
;
945 SKIP_WHITESPACE_AFTER_NAME ();
946 if (*input_line_pointer
!= '!')
950 as_bad (_("no sequence number after !%s"), p
);
954 tok
->X_add_number
= 0;
960 as_bad (_("!%s does not use a sequence number"), p
);
964 input_line_pointer
++;
966 /* Parse !sequence_number. */
968 if (tok
->X_op
!= O_constant
|| tok
->X_add_number
<= 0)
970 as_bad (_("Bad sequence number: !%s!%s"),
971 r
->name
, input_line_pointer
);
980 #endif /* RELOC_OP_P */
983 ++input_line_pointer
;
984 if (saw_comma
|| !saw_arg
)
991 char *hold
= input_line_pointer
++;
993 /* First try for parenthesized register ... */
995 if (*input_line_pointer
== ')' && tok
->X_op
== O_register
)
997 tok
->X_op
= (saw_comma
? O_cpregister
: O_pregister
);
1000 ++input_line_pointer
;
1005 /* ... then fall through to plain expression. */
1006 input_line_pointer
= hold
;
1010 if (saw_arg
&& !saw_comma
)
1014 if (tok
->X_op
== O_illegal
|| tok
->X_op
== O_absent
)
1027 input_line_pointer
= old_input_line_pointer
;
1030 debug_exp (orig_tok
, ntok
- (end_tok
- tok
));
1033 is_end_of_line
[(unsigned char) '!'] = 0;
1036 return ntok
- (end_tok
- tok
);
1040 is_end_of_line
[(unsigned char) '!'] = 0;
1042 input_line_pointer
= old_input_line_pointer
;
1043 return TOKENIZE_ERROR
;
1047 is_end_of_line
[(unsigned char) '!'] = 0;
1049 input_line_pointer
= old_input_line_pointer
;
1050 return TOKENIZE_ERROR_REPORT
;
1053 /* Search forward through all variants of an opcode looking for a
1056 static const struct alpha_opcode
*
1057 find_opcode_match (const struct alpha_opcode
*first_opcode
,
1058 const expressionS
*tok
,
1062 const struct alpha_opcode
*opcode
= first_opcode
;
1064 int got_cpu_match
= 0;
1068 const unsigned char *opidx
;
1071 /* Don't match opcodes that don't exist on this architecture. */
1072 if (!(opcode
->flags
& alpha_target
))
1077 for (opidx
= opcode
->operands
; *opidx
; ++opidx
)
1079 const struct alpha_operand
*operand
= &alpha_operands
[*opidx
];
1081 /* Only take input from real operands. */
1082 if (operand
->flags
& AXP_OPERAND_FAKE
)
1085 /* When we expect input, make sure we have it. */
1088 if ((operand
->flags
& AXP_OPERAND_OPTIONAL_MASK
) == 0)
1093 /* Match operand type with expression type. */
1094 switch (operand
->flags
& AXP_OPERAND_TYPECHECK_MASK
)
1096 case AXP_OPERAND_IR
:
1097 if (tok
[tokidx
].X_op
!= O_register
1098 || !is_ir_num (tok
[tokidx
].X_add_number
))
1101 case AXP_OPERAND_FPR
:
1102 if (tok
[tokidx
].X_op
!= O_register
1103 || !is_fpr_num (tok
[tokidx
].X_add_number
))
1106 case AXP_OPERAND_IR
| AXP_OPERAND_PARENS
:
1107 if (tok
[tokidx
].X_op
!= O_pregister
1108 || !is_ir_num (tok
[tokidx
].X_add_number
))
1111 case AXP_OPERAND_IR
| AXP_OPERAND_PARENS
| AXP_OPERAND_COMMA
:
1112 if (tok
[tokidx
].X_op
!= O_cpregister
1113 || !is_ir_num (tok
[tokidx
].X_add_number
))
1117 case AXP_OPERAND_RELATIVE
:
1118 case AXP_OPERAND_SIGNED
:
1119 case AXP_OPERAND_UNSIGNED
:
1120 switch (tok
[tokidx
].X_op
)
1135 /* Everything else should have been fake. */
1141 /* Possible match -- did we use all of our input? */
1150 while (++opcode
- alpha_opcodes
< (int) alpha_num_opcodes
1151 && !strcmp (opcode
->name
, first_opcode
->name
));
1154 *pcpumatch
= got_cpu_match
;
1159 /* Given an opcode name and a pre-tokenized set of arguments, assemble
1160 the insn, but do not emit it.
1162 Note that this implies no macros allowed, since we can't store more
1163 than one insn in an insn structure. */
1166 assemble_tokens_to_insn (const char *opname
,
1167 const expressionS
*tok
,
1169 struct alpha_insn
*insn
)
1171 const struct alpha_opcode
*opcode
;
1173 /* Search opcodes. */
1174 opcode
= (const struct alpha_opcode
*) hash_find (alpha_opcode_hash
, opname
);
1178 opcode
= find_opcode_match (opcode
, tok
, &ntok
, &cpumatch
);
1181 assemble_insn (opcode
, tok
, ntok
, insn
, BFD_RELOC_UNUSED
);
1185 as_bad (_("inappropriate arguments for opcode `%s'"), opname
);
1187 as_bad (_("opcode `%s' not supported for target %s"), opname
,
1191 as_bad (_("unknown opcode `%s'"), opname
);
1194 /* Build a BFD section with its flags set appropriately for the .lita,
1195 .lit8, or .lit4 sections. */
1198 create_literal_section (const char *name
,
1202 segT current_section
= now_seg
;
1203 int current_subsec
= now_subseg
;
1206 *secp
= new_sec
= subseg_new (name
, 0);
1207 subseg_set (current_section
, current_subsec
);
1208 bfd_set_section_alignment (stdoutput
, new_sec
, 4);
1209 bfd_set_section_flags (stdoutput
, new_sec
,
1210 SEC_RELOC
| SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
1213 S_CLEAR_EXTERNAL (*symp
= section_symbol (new_sec
));
1216 /* Load a (partial) expression into a target register.
1218 If poffset is not null, after the call it will either contain
1219 O_constant 0, or a 16-bit offset appropriate for any MEM format
1220 instruction. In addition, pbasereg will be modified to point to
1221 the base register to use in that MEM format instruction.
1223 In any case, *pbasereg should contain a base register to add to the
1224 expression. This will normally be either AXP_REG_ZERO or
1225 alpha_gp_register. Symbol addresses will always be loaded via $gp,
1226 so "foo($0)" is interpreted as adding the address of foo to $0;
1227 i.e. "ldq $targ, LIT($gp); addq $targ, $0, $targ". Odd, perhaps,
1228 but this is what OSF/1 does.
1230 If explicit relocations of the form !literal!<number> are allowed,
1231 and used, then explicit_reloc with be an expression pointer.
1233 Finally, the return value is nonzero if the calling macro may emit
1234 a LITUSE reloc if otherwise appropriate; the return value is the
1235 sequence number to use. */
1238 load_expression (int targreg
,
1239 const expressionS
*exp
,
1241 expressionS
*poffset
,
1244 long emit_lituse
= 0;
1245 offsetT addend
= exp
->X_add_number
;
1246 int basereg
= *pbasereg
;
1247 struct alpha_insn insn
;
1248 expressionS newtok
[3];
1257 /* Attempt to reduce .lit load by splitting the offset from
1258 its symbol when possible, but don't create a situation in
1260 if (!range_signed_32 (addend
) &&
1261 (alpha_noat_on
|| targreg
== AXP_REG_AT
))
1263 lit
= add_to_literal_pool (exp
->X_add_symbol
, addend
,
1264 alpha_lita_section
, 8);
1268 lit
= add_to_literal_pool (exp
->X_add_symbol
, 0,
1269 alpha_lita_section
, 8);
1272 as_fatal (_("overflow in literal (.lita) table"));
1274 /* Emit "ldq r, lit(gp)". */
1276 if (basereg
!= alpha_gp_register
&& targreg
== basereg
)
1279 as_bad (_("macro requires $at register while noat in effect"));
1280 if (targreg
== AXP_REG_AT
)
1281 as_bad (_("macro requires $at while $at in use"));
1283 set_tok_reg (newtok
[0], AXP_REG_AT
);
1286 set_tok_reg (newtok
[0], targreg
);
1288 set_tok_sym (newtok
[1], alpha_lita_symbol
, lit
);
1289 set_tok_preg (newtok
[2], alpha_gp_register
);
1291 assemble_tokens_to_insn ("ldq", newtok
, 3, &insn
);
1293 gas_assert (insn
.nfixups
== 1);
1294 insn
.fixups
[0].reloc
= BFD_RELOC_ALPHA_LITERAL
;
1295 insn
.sequence
= emit_lituse
= next_sequence_num
--;
1296 #endif /* OBJ_ECOFF */
1298 /* Emit "ldq r, gotoff(gp)". */
1300 if (basereg
!= alpha_gp_register
&& targreg
== basereg
)
1303 as_bad (_("macro requires $at register while noat in effect"));
1304 if (targreg
== AXP_REG_AT
)
1305 as_bad (_("macro requires $at while $at in use"));
1307 set_tok_reg (newtok
[0], AXP_REG_AT
);
1310 set_tok_reg (newtok
[0], targreg
);
1312 /* XXX: Disable this .got minimizing optimization so that we can get
1313 better instruction offset knowledge in the compiler. This happens
1314 very infrequently anyway. */
1316 || (!range_signed_32 (addend
)
1317 && (alpha_noat_on
|| targreg
== AXP_REG_AT
)))
1323 set_tok_sym (newtok
[1], exp
->X_add_symbol
, 0);
1325 set_tok_preg (newtok
[2], alpha_gp_register
);
1327 assemble_tokens_to_insn ("ldq", newtok
, 3, &insn
);
1329 gas_assert (insn
.nfixups
== 1);
1330 insn
.fixups
[0].reloc
= BFD_RELOC_ALPHA_ELF_LITERAL
;
1331 insn
.sequence
= emit_lituse
= next_sequence_num
--;
1332 #endif /* OBJ_ELF */
1334 /* Find symbol or symbol pointer in link section. */
1336 if (exp
->X_add_symbol
== alpha_evax_proc
->symbol
)
1338 /* Linkage-relative expression. */
1339 set_tok_reg (newtok
[0], targreg
);
1341 if (range_signed_16 (addend
))
1343 set_tok_const (newtok
[1], addend
);
1348 set_tok_const (newtok
[1], 0);
1350 set_tok_preg (newtok
[2], basereg
);
1351 assemble_tokens_to_insn ("lda", newtok
, 3, &insn
);
1355 const char *symname
= S_GET_NAME (exp
->X_add_symbol
);
1356 const char *ptr1
, *ptr2
;
1357 int symlen
= strlen (symname
);
1360 strcmp (ptr2
= &symname
[symlen
- 4], "..lk") == 0))
1362 /* Access to an item whose address is stored in the linkage
1363 section. Just read the address. */
1364 set_tok_reg (newtok
[0], targreg
);
1367 newtok
[1].X_op
= O_subtract
;
1368 newtok
[1].X_op_symbol
= alpha_evax_proc
->symbol
;
1370 set_tok_preg (newtok
[2], basereg
);
1371 assemble_tokens_to_insn ("ldq", newtok
, 3, &insn
);
1372 alpha_linkage_symbol
= exp
->X_add_symbol
;
1375 set_tok_const (*poffset
, 0);
1377 if (alpha_flag_replace
&& targreg
== 26)
1379 /* Add a NOP fixup for 'ldX $26,YYY..NAME..lk'. */
1383 /* Build the entry name as 'NAME..en'. */
1384 ptr1
= strstr (symname
, "..") + 2;
1387 ensymname
= XNEWVEC (char, ptr2
- ptr1
+ 5);
1388 memcpy (ensymname
, ptr1
, ptr2
- ptr1
);
1389 memcpy (ensymname
+ (ptr2
- ptr1
), "..en", 5);
1391 gas_assert (insn
.nfixups
+ 1 <= MAX_INSN_FIXUPS
);
1392 insn
.fixups
[insn
.nfixups
].reloc
= BFD_RELOC_ALPHA_NOP
;
1393 ensym
= symbol_find_or_make (ensymname
);
1395 symbol_mark_used (ensym
);
1396 /* The fixup must be the same as the BFD_RELOC_ALPHA_BOH
1397 case in emit_jsrjmp. See B.4.5.2 of the OpenVMS Linker
1399 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_symbol
;
1400 insn
.fixups
[insn
.nfixups
].exp
.X_add_symbol
= ensym
;
1401 insn
.fixups
[insn
.nfixups
].exp
.X_add_number
= 0;
1402 insn
.fixups
[insn
.nfixups
].xtrasym
= alpha_linkage_symbol
;
1403 insn
.fixups
[insn
.nfixups
].procsym
= alpha_evax_proc
->symbol
;
1406 /* ??? Force bsym to be instantiated now, as it will be
1407 too late to do so in tc_gen_reloc. */
1408 symbol_get_bfdsym (exp
->X_add_symbol
);
1410 else if (alpha_flag_replace
&& targreg
== 27)
1412 /* Add a lda fixup for 'ldX $27,YYY.NAME..lk+8'. */
1417 ptr1
= strstr (symname
, "..") + 2;
1420 psymname
= xmemdup0 (ptr1
, ptr2
- ptr1
);
1422 gas_assert (insn
.nfixups
+ 1 <= MAX_INSN_FIXUPS
);
1423 insn
.fixups
[insn
.nfixups
].reloc
= BFD_RELOC_ALPHA_LDA
;
1424 psym
= symbol_find_or_make (psymname
);
1426 symbol_mark_used (psym
);
1427 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_subtract
;
1428 insn
.fixups
[insn
.nfixups
].exp
.X_add_symbol
= psym
;
1429 insn
.fixups
[insn
.nfixups
].exp
.X_op_symbol
= alpha_evax_proc
->symbol
;
1430 insn
.fixups
[insn
.nfixups
].exp
.X_add_number
= 0;
1431 insn
.fixups
[insn
.nfixups
].xtrasym
= alpha_linkage_symbol
;
1432 insn
.fixups
[insn
.nfixups
].procsym
= alpha_evax_proc
->symbol
;
1441 /* Not in the linkage section. Put the value into the linkage
1445 if (!range_signed_32 (addend
))
1446 addend
= sign_extend_32 (addend
);
1447 linkexp
= add_to_link_pool (exp
->X_add_symbol
, 0);
1448 set_tok_reg (newtok
[0], targreg
);
1449 set_tok_sym (newtok
[1], linkexp
, 0);
1450 set_tok_preg (newtok
[2], basereg
);
1451 assemble_tokens_to_insn ("ldq", newtok
, 3, &insn
);
1454 #endif /* OBJ_EVAX */
1459 if (basereg
!= alpha_gp_register
&& basereg
!= AXP_REG_ZERO
)
1461 /* Emit "addq r, base, r". */
1463 set_tok_reg (newtok
[1], basereg
);
1464 set_tok_reg (newtok
[2], targreg
);
1465 assemble_tokens ("addq", newtok
, 3, 0);
1476 /* Assume that this difference expression will be resolved to an
1477 absolute value and that that value will fit in 16 bits. */
1479 set_tok_reg (newtok
[0], targreg
);
1481 set_tok_preg (newtok
[2], basereg
);
1482 assemble_tokens (opname
, newtok
, 3, 0);
1485 set_tok_const (*poffset
, 0);
1489 if (exp
->X_add_number
> 0)
1490 as_bad (_("bignum invalid; zero assumed"));
1492 as_bad (_("floating point number invalid; zero assumed"));
1497 as_bad (_("can't handle expression"));
1502 if (!range_signed_32 (addend
))
1508 long seq_num
= next_sequence_num
--;
1511 /* For 64-bit addends, just put it in the literal pool. */
1513 /* Emit "ldq targreg, lit(basereg)". */
1514 litexp
= add_to_link_pool (section_symbol (absolute_section
), addend
);
1515 set_tok_reg (newtok
[0], targreg
);
1516 set_tok_sym (newtok
[1], litexp
, 0);
1517 set_tok_preg (newtok
[2], alpha_gp_register
);
1518 assemble_tokens ("ldq", newtok
, 3, 0);
1521 if (alpha_lit8_section
== NULL
)
1523 create_literal_section (".lit8",
1524 &alpha_lit8_section
,
1525 &alpha_lit8_symbol
);
1528 alpha_lit8_literal
= add_to_literal_pool (alpha_lit8_symbol
, 0x8000,
1529 alpha_lita_section
, 8);
1530 if (alpha_lit8_literal
>= 0x8000)
1531 as_fatal (_("overflow in literal (.lita) table"));
1535 lit
= add_to_literal_pool (NULL
, addend
, alpha_lit8_section
, 8) - 0x8000;
1537 as_fatal (_("overflow in literal (.lit8) table"));
1539 /* Emit "lda litreg, .lit8+0x8000". */
1541 if (targreg
== basereg
)
1544 as_bad (_("macro requires $at register while noat in effect"));
1545 if (targreg
== AXP_REG_AT
)
1546 as_bad (_("macro requires $at while $at in use"));
1548 set_tok_reg (newtok
[0], AXP_REG_AT
);
1551 set_tok_reg (newtok
[0], targreg
);
1553 set_tok_sym (newtok
[1], alpha_lita_symbol
, alpha_lit8_literal
);
1556 set_tok_sym (newtok
[1], alpha_lit8_symbol
, 0x8000);
1558 set_tok_preg (newtok
[2], alpha_gp_register
);
1560 assemble_tokens_to_insn ("ldq", newtok
, 3, &insn
);
1562 gas_assert (insn
.nfixups
== 1);
1564 insn
.fixups
[0].reloc
= BFD_RELOC_ALPHA_LITERAL
;
1567 insn
.fixups
[0].reloc
= BFD_RELOC_ALPHA_ELF_LITERAL
;
1569 insn
.sequence
= seq_num
;
1573 /* Emit "ldq litreg, lit(litreg)". */
1575 set_tok_const (newtok
[1], lit
);
1576 set_tok_preg (newtok
[2], newtok
[0].X_add_number
);
1578 assemble_tokens_to_insn ("ldq", newtok
, 3, &insn
);
1580 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
1581 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BASE
;
1582 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
1584 insn
.sequence
= seq_num
;
1589 /* Emit "addq litreg, base, target". */
1591 if (basereg
!= AXP_REG_ZERO
)
1593 set_tok_reg (newtok
[1], basereg
);
1594 set_tok_reg (newtok
[2], targreg
);
1595 assemble_tokens ("addq", newtok
, 3, 0);
1597 #endif /* !OBJ_EVAX */
1600 set_tok_const (*poffset
, 0);
1601 *pbasereg
= targreg
;
1605 offsetT low
, high
, extra
, tmp
;
1607 /* For 32-bit operands, break up the addend. */
1609 low
= sign_extend_16 (addend
);
1611 high
= sign_extend_16 (tmp
>> 16);
1613 if (tmp
- (high
<< 16))
1617 high
= sign_extend_16 (tmp
>> 16);
1622 set_tok_reg (newtok
[0], targreg
);
1623 set_tok_preg (newtok
[2], basereg
);
1627 /* Emit "ldah r, extra(r). */
1628 set_tok_const (newtok
[1], extra
);
1629 assemble_tokens ("ldah", newtok
, 3, 0);
1630 set_tok_preg (newtok
[2], basereg
= targreg
);
1635 /* Emit "ldah r, high(r). */
1636 set_tok_const (newtok
[1], high
);
1637 assemble_tokens ("ldah", newtok
, 3, 0);
1639 set_tok_preg (newtok
[2], basereg
);
1642 if ((low
&& !poffset
) || (!poffset
&& basereg
!= targreg
))
1644 /* Emit "lda r, low(base)". */
1645 set_tok_const (newtok
[1], low
);
1646 assemble_tokens ("lda", newtok
, 3, 0);
1652 set_tok_const (*poffset
, low
);
1653 *pbasereg
= basereg
;
1659 /* The lda macro differs from the lda instruction in that it handles
1660 most simple expressions, particularly symbol address loads and
1664 emit_lda (const expressionS
*tok
,
1666 const void * unused ATTRIBUTE_UNUSED
)
1671 basereg
= (tok
[1].X_op
== O_constant
? AXP_REG_ZERO
: alpha_gp_register
);
1673 basereg
= tok
[2].X_add_number
;
1675 (void) load_expression (tok
[0].X_add_number
, &tok
[1], &basereg
, NULL
, "lda");
1678 /* The ldah macro differs from the ldah instruction in that it has $31
1679 as an implied base register. */
1682 emit_ldah (const expressionS
*tok
,
1683 int ntok ATTRIBUTE_UNUSED
,
1684 const void * unused ATTRIBUTE_UNUSED
)
1686 expressionS newtok
[3];
1690 set_tok_preg (newtok
[2], AXP_REG_ZERO
);
1692 assemble_tokens ("ldah", newtok
, 3, 0);
1695 /* Called internally to handle all alignment needs. This takes care
1696 of eliding calls to frag_align if'n the cached current alignment
1697 says we've already got it, as well as taking care of the auto-align
1698 feature wrt labels. */
1704 int force ATTRIBUTE_UNUSED
)
1706 if (alpha_current_align
>= n
)
1711 if (subseg_text_p (now_seg
))
1712 frag_align_code (n
, 0);
1714 frag_align (n
, 0, 0);
1717 frag_align (n
, *pfill
, 0);
1719 alpha_current_align
= n
;
1721 if (label
!= NULL
&& S_GET_SEGMENT (label
) == now_seg
)
1723 symbol_set_frag (label
, frag_now
);
1724 S_SET_VALUE (label
, (valueT
) frag_now_fix ());
1727 record_alignment (now_seg
, n
);
1729 /* ??? If alpha_flag_relax && force && elf, record the requested alignment
1730 in a reloc for the linker to see. */
1733 /* Actually output an instruction with its fixup. */
1736 emit_insn (struct alpha_insn
*insn
)
1741 /* Take care of alignment duties. */
1742 if (alpha_auto_align_on
&& alpha_current_align
< 2)
1743 alpha_align (2, (char *) NULL
, alpha_insn_label
, 0);
1744 if (alpha_current_align
> 2)
1745 alpha_current_align
= 2;
1746 alpha_insn_label
= NULL
;
1748 /* Write out the instruction. */
1750 md_number_to_chars (f
, insn
->insn
, 4);
1753 dwarf2_emit_insn (4);
1756 /* Apply the fixups in order. */
1757 for (i
= 0; i
< insn
->nfixups
; ++i
)
1759 const struct alpha_operand
*operand
= (const struct alpha_operand
*) 0;
1760 struct alpha_fixup
*fixup
= &insn
->fixups
[i
];
1761 struct alpha_reloc_tag
*info
= NULL
;
1765 /* Some fixups are only used internally and so have no howto. */
1766 if ((int) fixup
->reloc
< 0)
1768 operand
= &alpha_operands
[-(int) fixup
->reloc
];
1770 pcrel
= ((operand
->flags
& AXP_OPERAND_RELATIVE
) != 0);
1772 else if (fixup
->reloc
> BFD_RELOC_UNUSED
1773 || fixup
->reloc
== BFD_RELOC_ALPHA_GPDISP_HI16
1774 || fixup
->reloc
== BFD_RELOC_ALPHA_GPDISP_LO16
)
1781 reloc_howto_type
*reloc_howto
=
1782 bfd_reloc_type_lookup (stdoutput
,
1783 (bfd_reloc_code_real_type
) fixup
->reloc
);
1784 gas_assert (reloc_howto
);
1786 size
= bfd_get_reloc_size (reloc_howto
);
1788 switch (fixup
->reloc
)
1791 case BFD_RELOC_ALPHA_NOP
:
1792 case BFD_RELOC_ALPHA_BSR
:
1793 case BFD_RELOC_ALPHA_LDA
:
1794 case BFD_RELOC_ALPHA_BOH
:
1798 gas_assert (size
>= 1 && size
<= 4);
1801 pcrel
= reloc_howto
->pc_relative
;
1804 fixP
= fix_new_exp (frag_now
, f
- frag_now
->fr_literal
, size
,
1805 &fixup
->exp
, pcrel
, (bfd_reloc_code_real_type
) fixup
->reloc
);
1807 /* Turn off complaints that the addend is too large for some fixups,
1808 and copy in the sequence number for the explicit relocations. */
1809 switch (fixup
->reloc
)
1811 case BFD_RELOC_ALPHA_HINT
:
1812 case BFD_RELOC_GPREL32
:
1813 case BFD_RELOC_GPREL16
:
1814 case BFD_RELOC_ALPHA_GPREL_HI16
:
1815 case BFD_RELOC_ALPHA_GPREL_LO16
:
1816 case BFD_RELOC_ALPHA_GOTDTPREL16
:
1817 case BFD_RELOC_ALPHA_DTPREL_HI16
:
1818 case BFD_RELOC_ALPHA_DTPREL_LO16
:
1819 case BFD_RELOC_ALPHA_DTPREL16
:
1820 case BFD_RELOC_ALPHA_GOTTPREL16
:
1821 case BFD_RELOC_ALPHA_TPREL_HI16
:
1822 case BFD_RELOC_ALPHA_TPREL_LO16
:
1823 case BFD_RELOC_ALPHA_TPREL16
:
1824 fixP
->fx_no_overflow
= 1;
1827 case BFD_RELOC_ALPHA_GPDISP_HI16
:
1828 fixP
->fx_no_overflow
= 1;
1829 fixP
->fx_addsy
= section_symbol (now_seg
);
1830 fixP
->fx_offset
= 0;
1832 info
= get_alpha_reloc_tag (insn
->sequence
);
1833 if (++info
->n_master
> 1)
1834 as_bad (_("too many ldah insns for !gpdisp!%ld"), insn
->sequence
);
1835 if (info
->segment
!= now_seg
)
1836 as_bad (_("both insns for !gpdisp!%ld must be in the same section"),
1838 fixP
->tc_fix_data
.info
= info
;
1841 case BFD_RELOC_ALPHA_GPDISP_LO16
:
1842 fixP
->fx_no_overflow
= 1;
1844 info
= get_alpha_reloc_tag (insn
->sequence
);
1845 if (++info
->n_slaves
> 1)
1846 as_bad (_("too many lda insns for !gpdisp!%ld"), insn
->sequence
);
1847 if (info
->segment
!= now_seg
)
1848 as_bad (_("both insns for !gpdisp!%ld must be in the same section"),
1850 fixP
->tc_fix_data
.info
= info
;
1851 info
->slaves
= fixP
;
1854 case BFD_RELOC_ALPHA_LITERAL
:
1855 case BFD_RELOC_ALPHA_ELF_LITERAL
:
1856 fixP
->fx_no_overflow
= 1;
1858 if (insn
->sequence
== 0)
1860 info
= get_alpha_reloc_tag (insn
->sequence
);
1861 info
->master
= fixP
;
1863 if (info
->segment
!= now_seg
)
1864 info
->multi_section_p
= 1;
1865 fixP
->tc_fix_data
.info
= info
;
1869 case DUMMY_RELOC_LITUSE_ADDR
:
1870 fixP
->fx_offset
= LITUSE_ALPHA_ADDR
;
1872 case DUMMY_RELOC_LITUSE_BASE
:
1873 fixP
->fx_offset
= LITUSE_ALPHA_BASE
;
1875 case DUMMY_RELOC_LITUSE_BYTOFF
:
1876 fixP
->fx_offset
= LITUSE_ALPHA_BYTOFF
;
1878 case DUMMY_RELOC_LITUSE_JSR
:
1879 fixP
->fx_offset
= LITUSE_ALPHA_JSR
;
1881 case DUMMY_RELOC_LITUSE_TLSGD
:
1882 fixP
->fx_offset
= LITUSE_ALPHA_TLSGD
;
1884 case DUMMY_RELOC_LITUSE_TLSLDM
:
1885 fixP
->fx_offset
= LITUSE_ALPHA_TLSLDM
;
1887 case DUMMY_RELOC_LITUSE_JSRDIRECT
:
1888 fixP
->fx_offset
= LITUSE_ALPHA_JSRDIRECT
;
1891 fixP
->fx_addsy
= section_symbol (now_seg
);
1892 fixP
->fx_r_type
= BFD_RELOC_ALPHA_LITUSE
;
1894 info
= get_alpha_reloc_tag (insn
->sequence
);
1895 if (fixup
->reloc
== DUMMY_RELOC_LITUSE_TLSGD
)
1896 info
->saw_lu_tlsgd
= 1;
1897 else if (fixup
->reloc
== DUMMY_RELOC_LITUSE_TLSLDM
)
1898 info
->saw_lu_tlsldm
= 1;
1899 if (++info
->n_slaves
> 1)
1901 if (info
->saw_lu_tlsgd
)
1902 as_bad (_("too many lituse insns for !lituse_tlsgd!%ld"),
1904 else if (info
->saw_lu_tlsldm
)
1905 as_bad (_("too many lituse insns for !lituse_tlsldm!%ld"),
1908 fixP
->tc_fix_data
.info
= info
;
1909 fixP
->tc_fix_data
.next_reloc
= info
->slaves
;
1910 info
->slaves
= fixP
;
1911 if (info
->segment
!= now_seg
)
1912 info
->multi_section_p
= 1;
1915 case BFD_RELOC_ALPHA_TLSGD
:
1916 fixP
->fx_no_overflow
= 1;
1918 if (insn
->sequence
== 0)
1920 info
= get_alpha_reloc_tag (insn
->sequence
);
1921 if (info
->saw_tlsgd
)
1922 as_bad (_("duplicate !tlsgd!%ld"), insn
->sequence
);
1923 else if (info
->saw_tlsldm
)
1924 as_bad (_("sequence number in use for !tlsldm!%ld"),
1927 info
->saw_tlsgd
= 1;
1928 fixP
->tc_fix_data
.info
= info
;
1931 case BFD_RELOC_ALPHA_TLSLDM
:
1932 fixP
->fx_no_overflow
= 1;
1934 if (insn
->sequence
== 0)
1936 info
= get_alpha_reloc_tag (insn
->sequence
);
1937 if (info
->saw_tlsldm
)
1938 as_bad (_("duplicate !tlsldm!%ld"), insn
->sequence
);
1939 else if (info
->saw_tlsgd
)
1940 as_bad (_("sequence number in use for !tlsgd!%ld"),
1943 info
->saw_tlsldm
= 1;
1944 fixP
->tc_fix_data
.info
= info
;
1948 case BFD_RELOC_ALPHA_NOP
:
1949 case BFD_RELOC_ALPHA_LDA
:
1950 case BFD_RELOC_ALPHA_BSR
:
1951 case BFD_RELOC_ALPHA_BOH
:
1952 info
= get_alpha_reloc_tag (next_sequence_num
--);
1953 fixP
->tc_fix_data
.info
= info
;
1954 fixP
->tc_fix_data
.info
->sym
= fixup
->xtrasym
;
1955 fixP
->tc_fix_data
.info
->psym
= fixup
->procsym
;
1960 if ((int) fixup
->reloc
< 0)
1962 if (operand
->flags
& AXP_OPERAND_NOOVERFLOW
)
1963 fixP
->fx_no_overflow
= 1;
1970 /* Insert an operand value into an instruction. */
1973 insert_operand (unsigned insn
,
1974 const struct alpha_operand
*operand
,
1979 if (operand
->bits
!= 32 && !(operand
->flags
& AXP_OPERAND_NOOVERFLOW
))
1983 if (operand
->flags
& AXP_OPERAND_SIGNED
)
1985 max
= (1 << (operand
->bits
- 1)) - 1;
1986 min
= -(1 << (operand
->bits
- 1));
1990 max
= (1 << operand
->bits
) - 1;
1994 if (val
< min
|| val
> max
)
1995 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1998 if (operand
->insert
)
2000 const char *errmsg
= NULL
;
2002 insn
= (*operand
->insert
) (insn
, val
, &errmsg
);
2004 as_warn ("%s", errmsg
);
2007 insn
|= ((val
& ((1 << operand
->bits
) - 1)) << operand
->shift
);
2012 /* Turn an opcode description and a set of arguments into
2013 an instruction and a fixup. */
2016 assemble_insn (const struct alpha_opcode
*opcode
,
2017 const expressionS
*tok
,
2019 struct alpha_insn
*insn
,
2020 extended_bfd_reloc_code_real_type reloc
)
2022 const struct alpha_operand
*reloc_operand
= NULL
;
2023 const expressionS
*reloc_exp
= NULL
;
2024 const unsigned char *argidx
;
2028 memset (insn
, 0, sizeof (*insn
));
2029 image
= opcode
->opcode
;
2031 for (argidx
= opcode
->operands
; *argidx
; ++argidx
)
2033 const struct alpha_operand
*operand
= &alpha_operands
[*argidx
];
2034 const expressionS
*t
= (const expressionS
*) 0;
2036 if (operand
->flags
& AXP_OPERAND_FAKE
)
2038 /* Fake operands take no value and generate no fixup. */
2039 image
= insert_operand (image
, operand
, 0, NULL
, 0);
2045 switch (operand
->flags
& AXP_OPERAND_OPTIONAL_MASK
)
2047 case AXP_OPERAND_DEFAULT_FIRST
:
2050 case AXP_OPERAND_DEFAULT_SECOND
:
2053 case AXP_OPERAND_DEFAULT_ZERO
:
2055 static expressionS zero_exp
;
2057 zero_exp
.X_op
= O_constant
;
2058 zero_exp
.X_unsigned
= 1;
2073 image
= insert_operand (image
, operand
, regno (t
->X_add_number
),
2078 image
= insert_operand (image
, operand
, t
->X_add_number
, NULL
, 0);
2079 gas_assert (reloc_operand
== NULL
);
2080 reloc_operand
= operand
;
2085 /* This is only 0 for fields that should contain registers,
2086 which means this pattern shouldn't have matched. */
2087 if (operand
->default_reloc
== 0)
2090 /* There is one special case for which an insn receives two
2091 relocations, and thus the user-supplied reloc does not
2092 override the operand reloc. */
2093 if (operand
->default_reloc
== BFD_RELOC_ALPHA_HINT
)
2095 struct alpha_fixup
*fixup
;
2097 if (insn
->nfixups
>= MAX_INSN_FIXUPS
)
2098 as_fatal (_("too many fixups"));
2100 fixup
= &insn
->fixups
[insn
->nfixups
++];
2102 fixup
->reloc
= BFD_RELOC_ALPHA_HINT
;
2106 if (reloc
== BFD_RELOC_UNUSED
)
2107 reloc
= operand
->default_reloc
;
2109 gas_assert (reloc_operand
== NULL
);
2110 reloc_operand
= operand
;
2117 if (reloc
!= BFD_RELOC_UNUSED
)
2119 struct alpha_fixup
*fixup
;
2121 if (insn
->nfixups
>= MAX_INSN_FIXUPS
)
2122 as_fatal (_("too many fixups"));
2124 /* ??? My but this is hacky. But the OSF/1 assembler uses the same
2125 relocation tag for both ldah and lda with gpdisp. Choose the
2126 correct internal relocation based on the opcode. */
2127 if (reloc
== BFD_RELOC_ALPHA_GPDISP
)
2129 if (strcmp (opcode
->name
, "ldah") == 0)
2130 reloc
= BFD_RELOC_ALPHA_GPDISP_HI16
;
2131 else if (strcmp (opcode
->name
, "lda") == 0)
2132 reloc
= BFD_RELOC_ALPHA_GPDISP_LO16
;
2134 as_bad (_("invalid relocation for instruction"));
2137 /* If this is a real relocation (as opposed to a lituse hint), then
2138 the relocation width should match the operand width.
2139 Take care of -MDISP in operand table. */
2140 else if (reloc
< BFD_RELOC_UNUSED
&& reloc
> 0)
2142 reloc_howto_type
*reloc_howto
2143 = bfd_reloc_type_lookup (stdoutput
,
2144 (bfd_reloc_code_real_type
) reloc
);
2145 if (reloc_operand
== NULL
2146 || reloc_howto
->bitsize
!= reloc_operand
->bits
)
2148 as_bad (_("invalid relocation for field"));
2153 fixup
= &insn
->fixups
[insn
->nfixups
++];
2155 fixup
->exp
= *reloc_exp
;
2157 fixup
->exp
.X_op
= O_absent
;
2158 fixup
->reloc
= reloc
;
2164 /* Handle all "simple" integer register loads -- ldq, ldq_l, ldq_u,
2165 etc. They differ from the real instructions in that they do simple
2166 expressions like the lda macro. */
2169 emit_ir_load (const expressionS
*tok
,
2171 const void * opname
)
2175 expressionS newtok
[3];
2176 struct alpha_insn insn
;
2178 = tok
[1].X_add_symbol
? S_GET_NAME (tok
[1].X_add_symbol
): "";
2179 int symlen
= strlen (symname
);
2182 basereg
= (tok
[1].X_op
== O_constant
? AXP_REG_ZERO
: alpha_gp_register
);
2184 basereg
= tok
[2].X_add_number
;
2186 lituse
= load_expression (tok
[0].X_add_number
, &tok
[1],
2187 &basereg
, &newtok
[1], (const char *) opname
);
2189 if (basereg
== alpha_gp_register
&&
2190 (symlen
> 4 && strcmp (&symname
[symlen
- 4], "..lk") == 0))
2194 set_tok_preg (newtok
[2], basereg
);
2196 assemble_tokens_to_insn ((const char *) opname
, newtok
, 3, &insn
);
2200 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2201 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BASE
;
2202 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2204 insn
.sequence
= lituse
;
2210 /* Handle fp register loads, and both integer and fp register stores.
2211 Again, we handle simple expressions. */
2214 emit_loadstore (const expressionS
*tok
,
2216 const void * opname
)
2220 expressionS newtok
[3];
2221 struct alpha_insn insn
;
2224 basereg
= (tok
[1].X_op
== O_constant
? AXP_REG_ZERO
: alpha_gp_register
);
2226 basereg
= tok
[2].X_add_number
;
2228 if (tok
[1].X_op
!= O_constant
|| !range_signed_16 (tok
[1].X_add_number
))
2231 as_bad (_("macro requires $at register while noat in effect"));
2233 lituse
= load_expression (AXP_REG_AT
, &tok
[1],
2234 &basereg
, &newtok
[1], (const char *) opname
);
2243 set_tok_preg (newtok
[2], basereg
);
2245 assemble_tokens_to_insn ((const char *) opname
, newtok
, 3, &insn
);
2249 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2250 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BASE
;
2251 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2253 insn
.sequence
= lituse
;
2259 /* Load a half-word or byte as an unsigned value. */
2262 emit_ldXu (const expressionS
*tok
,
2264 const void * vlgsize
)
2266 if (alpha_target
& AXP_OPCODE_BWX
)
2267 emit_ir_load (tok
, ntok
, ldXu_op
[(long) vlgsize
]);
2270 expressionS newtok
[3];
2271 struct alpha_insn insn
;
2276 as_bad (_("macro requires $at register while noat in effect"));
2279 basereg
= (tok
[1].X_op
== O_constant
2280 ? AXP_REG_ZERO
: alpha_gp_register
);
2282 basereg
= tok
[2].X_add_number
;
2284 /* Emit "lda $at, exp". */
2285 lituse
= load_expression (AXP_REG_AT
, &tok
[1], &basereg
, NULL
, "lda");
2287 /* Emit "ldq_u targ, 0($at)". */
2289 set_tok_const (newtok
[1], 0);
2290 set_tok_preg (newtok
[2], basereg
);
2291 assemble_tokens_to_insn ("ldq_u", newtok
, 3, &insn
);
2295 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2296 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BASE
;
2297 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2299 insn
.sequence
= lituse
;
2304 /* Emit "extXl targ, $at, targ". */
2305 set_tok_reg (newtok
[1], basereg
);
2306 newtok
[2] = newtok
[0];
2307 assemble_tokens_to_insn (extXl_op
[(long) vlgsize
], newtok
, 3, &insn
);
2311 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2312 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BYTOFF
;
2313 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2315 insn
.sequence
= lituse
;
2322 /* Load a half-word or byte as a signed value. */
2325 emit_ldX (const expressionS
*tok
,
2327 const void * vlgsize
)
2329 emit_ldXu (tok
, ntok
, vlgsize
);
2330 assemble_tokens (sextX_op
[(long) vlgsize
], tok
, 1, 1);
2333 /* Load an integral value from an unaligned address as an unsigned
2337 emit_uldXu (const expressionS
*tok
,
2339 const void * vlgsize
)
2341 long lgsize
= (long) vlgsize
;
2342 expressionS newtok
[3];
2345 as_bad (_("macro requires $at register while noat in effect"));
2347 /* Emit "lda $at, exp". */
2348 memcpy (newtok
, tok
, sizeof (expressionS
) * ntok
);
2349 newtok
[0].X_add_number
= AXP_REG_AT
;
2350 assemble_tokens ("lda", newtok
, ntok
, 1);
2352 /* Emit "ldq_u $t9, 0($at)". */
2353 set_tok_reg (newtok
[0], AXP_REG_T9
);
2354 set_tok_const (newtok
[1], 0);
2355 set_tok_preg (newtok
[2], AXP_REG_AT
);
2356 assemble_tokens ("ldq_u", newtok
, 3, 1);
2358 /* Emit "ldq_u $t10, size-1($at)". */
2359 set_tok_reg (newtok
[0], AXP_REG_T10
);
2360 set_tok_const (newtok
[1], (1 << lgsize
) - 1);
2361 assemble_tokens ("ldq_u", newtok
, 3, 1);
2363 /* Emit "extXl $t9, $at, $t9". */
2364 set_tok_reg (newtok
[0], AXP_REG_T9
);
2365 set_tok_reg (newtok
[1], AXP_REG_AT
);
2366 set_tok_reg (newtok
[2], AXP_REG_T9
);
2367 assemble_tokens (extXl_op
[lgsize
], newtok
, 3, 1);
2369 /* Emit "extXh $t10, $at, $t10". */
2370 set_tok_reg (newtok
[0], AXP_REG_T10
);
2371 set_tok_reg (newtok
[2], AXP_REG_T10
);
2372 assemble_tokens (extXh_op
[lgsize
], newtok
, 3, 1);
2374 /* Emit "or $t9, $t10, targ". */
2375 set_tok_reg (newtok
[0], AXP_REG_T9
);
2376 set_tok_reg (newtok
[1], AXP_REG_T10
);
2378 assemble_tokens ("or", newtok
, 3, 1);
2381 /* Load an integral value from an unaligned address as a signed value.
2382 Note that quads should get funneled to the unsigned load since we
2383 don't have to do the sign extension. */
2386 emit_uldX (const expressionS
*tok
,
2388 const void * vlgsize
)
2390 emit_uldXu (tok
, ntok
, vlgsize
);
2391 assemble_tokens (sextX_op
[(long) vlgsize
], tok
, 1, 1);
2394 /* Implement the ldil macro. */
2397 emit_ldil (const expressionS
*tok
,
2399 const void * unused ATTRIBUTE_UNUSED
)
2401 expressionS newtok
[2];
2403 memcpy (newtok
, tok
, sizeof (newtok
));
2404 newtok
[1].X_add_number
= sign_extend_32 (tok
[1].X_add_number
);
2406 assemble_tokens ("lda", newtok
, ntok
, 1);
2409 /* Store a half-word or byte. */
2412 emit_stX (const expressionS
*tok
,
2414 const void * vlgsize
)
2416 int lgsize
= (int) (long) vlgsize
;
2418 if (alpha_target
& AXP_OPCODE_BWX
)
2419 emit_loadstore (tok
, ntok
, stX_op
[lgsize
]);
2422 expressionS newtok
[3];
2423 struct alpha_insn insn
;
2428 as_bad (_("macro requires $at register while noat in effect"));
2431 basereg
= (tok
[1].X_op
== O_constant
2432 ? AXP_REG_ZERO
: alpha_gp_register
);
2434 basereg
= tok
[2].X_add_number
;
2436 /* Emit "lda $at, exp". */
2437 lituse
= load_expression (AXP_REG_AT
, &tok
[1], &basereg
, NULL
, "lda");
2439 /* Emit "ldq_u $t9, 0($at)". */
2440 set_tok_reg (newtok
[0], AXP_REG_T9
);
2441 set_tok_const (newtok
[1], 0);
2442 set_tok_preg (newtok
[2], basereg
);
2443 assemble_tokens_to_insn ("ldq_u", newtok
, 3, &insn
);
2447 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2448 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BASE
;
2449 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2451 insn
.sequence
= lituse
;
2456 /* Emit "insXl src, $at, $t10". */
2458 set_tok_reg (newtok
[1], basereg
);
2459 set_tok_reg (newtok
[2], AXP_REG_T10
);
2460 assemble_tokens_to_insn (insXl_op
[lgsize
], newtok
, 3, &insn
);
2464 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2465 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BYTOFF
;
2466 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2468 insn
.sequence
= lituse
;
2473 /* Emit "mskXl $t9, $at, $t9". */
2474 set_tok_reg (newtok
[0], AXP_REG_T9
);
2475 newtok
[2] = newtok
[0];
2476 assemble_tokens_to_insn (mskXl_op
[lgsize
], newtok
, 3, &insn
);
2480 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2481 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BYTOFF
;
2482 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2484 insn
.sequence
= lituse
;
2489 /* Emit "or $t9, $t10, $t9". */
2490 set_tok_reg (newtok
[1], AXP_REG_T10
);
2491 assemble_tokens ("or", newtok
, 3, 1);
2493 /* Emit "stq_u $t9, 0($at). */
2494 set_tok_const(newtok
[1], 0);
2495 set_tok_preg (newtok
[2], AXP_REG_AT
);
2496 assemble_tokens_to_insn ("stq_u", newtok
, 3, &insn
);
2500 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2501 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_BASE
;
2502 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2504 insn
.sequence
= lituse
;
2511 /* Store an integer to an unaligned address. */
2514 emit_ustX (const expressionS
*tok
,
2516 const void * vlgsize
)
2518 int lgsize
= (int) (long) vlgsize
;
2519 expressionS newtok
[3];
2521 /* Emit "lda $at, exp". */
2522 memcpy (newtok
, tok
, sizeof (expressionS
) * ntok
);
2523 newtok
[0].X_add_number
= AXP_REG_AT
;
2524 assemble_tokens ("lda", newtok
, ntok
, 1);
2526 /* Emit "ldq_u $9, 0($at)". */
2527 set_tok_reg (newtok
[0], AXP_REG_T9
);
2528 set_tok_const (newtok
[1], 0);
2529 set_tok_preg (newtok
[2], AXP_REG_AT
);
2530 assemble_tokens ("ldq_u", newtok
, 3, 1);
2532 /* Emit "ldq_u $10, size-1($at)". */
2533 set_tok_reg (newtok
[0], AXP_REG_T10
);
2534 set_tok_const (newtok
[1], (1 << lgsize
) - 1);
2535 assemble_tokens ("ldq_u", newtok
, 3, 1);
2537 /* Emit "insXl src, $at, $t11". */
2539 set_tok_reg (newtok
[1], AXP_REG_AT
);
2540 set_tok_reg (newtok
[2], AXP_REG_T11
);
2541 assemble_tokens (insXl_op
[lgsize
], newtok
, 3, 1);
2543 /* Emit "insXh src, $at, $t12". */
2544 set_tok_reg (newtok
[2], AXP_REG_T12
);
2545 assemble_tokens (insXh_op
[lgsize
], newtok
, 3, 1);
2547 /* Emit "mskXl $t9, $at, $t9". */
2548 set_tok_reg (newtok
[0], AXP_REG_T9
);
2549 newtok
[2] = newtok
[0];
2550 assemble_tokens (mskXl_op
[lgsize
], newtok
, 3, 1);
2552 /* Emit "mskXh $t10, $at, $t10". */
2553 set_tok_reg (newtok
[0], AXP_REG_T10
);
2554 newtok
[2] = newtok
[0];
2555 assemble_tokens (mskXh_op
[lgsize
], newtok
, 3, 1);
2557 /* Emit "or $t9, $t11, $t9". */
2558 set_tok_reg (newtok
[0], AXP_REG_T9
);
2559 set_tok_reg (newtok
[1], AXP_REG_T11
);
2560 newtok
[2] = newtok
[0];
2561 assemble_tokens ("or", newtok
, 3, 1);
2563 /* Emit "or $t10, $t12, $t10". */
2564 set_tok_reg (newtok
[0], AXP_REG_T10
);
2565 set_tok_reg (newtok
[1], AXP_REG_T12
);
2566 newtok
[2] = newtok
[0];
2567 assemble_tokens ("or", newtok
, 3, 1);
2569 /* Emit "stq_u $t10, size-1($at)". */
2570 set_tok_reg (newtok
[0], AXP_REG_T10
);
2571 set_tok_const (newtok
[1], (1 << lgsize
) - 1);
2572 set_tok_preg (newtok
[2], AXP_REG_AT
);
2573 assemble_tokens ("stq_u", newtok
, 3, 1);
2575 /* Emit "stq_u $t9, 0($at)". */
2576 set_tok_reg (newtok
[0], AXP_REG_T9
);
2577 set_tok_const (newtok
[1], 0);
2578 assemble_tokens ("stq_u", newtok
, 3, 1);
2581 /* Sign extend a half-word or byte. The 32-bit sign extend is
2582 implemented as "addl $31, $r, $t" in the opcode table. */
2585 emit_sextX (const expressionS
*tok
,
2587 const void * vlgsize
)
2589 long lgsize
= (long) vlgsize
;
2591 if (alpha_target
& AXP_OPCODE_BWX
)
2592 assemble_tokens (sextX_op
[lgsize
], tok
, ntok
, 0);
2595 int bitshift
= 64 - 8 * (1 << lgsize
);
2596 expressionS newtok
[3];
2598 /* Emit "sll src,bits,dst". */
2600 set_tok_const (newtok
[1], bitshift
);
2601 newtok
[2] = tok
[ntok
- 1];
2602 assemble_tokens ("sll", newtok
, 3, 1);
2604 /* Emit "sra dst,bits,dst". */
2605 newtok
[0] = newtok
[2];
2606 assemble_tokens ("sra", newtok
, 3, 1);
2610 /* Implement the division and modulus macros. */
2614 /* Make register usage like in normal procedure call.
2615 Don't clobber PV and RA. */
2618 emit_division (const expressionS
*tok
,
2620 const void * symname
)
2622 /* DIVISION and MODULUS. Yech.
2627 mov x,R16 # if x != R16
2628 mov y,R17 # if y != R17
2633 with appropriate optimizations if R0,R16,R17 are the registers
2634 specified by the compiler. */
2638 expressionS newtok
[3];
2640 xr
= regno (tok
[0].X_add_number
);
2641 yr
= regno (tok
[1].X_add_number
);
2646 rr
= regno (tok
[2].X_add_number
);
2648 /* Move the operands into the right place. */
2649 if (yr
== AXP_REG_R16
&& xr
== AXP_REG_R17
)
2651 /* They are in exactly the wrong order -- swap through AT. */
2653 as_bad (_("macro requires $at register while noat in effect"));
2655 set_tok_reg (newtok
[0], AXP_REG_R16
);
2656 set_tok_reg (newtok
[1], AXP_REG_AT
);
2657 assemble_tokens ("mov", newtok
, 2, 1);
2659 set_tok_reg (newtok
[0], AXP_REG_R17
);
2660 set_tok_reg (newtok
[1], AXP_REG_R16
);
2661 assemble_tokens ("mov", newtok
, 2, 1);
2663 set_tok_reg (newtok
[0], AXP_REG_AT
);
2664 set_tok_reg (newtok
[1], AXP_REG_R17
);
2665 assemble_tokens ("mov", newtok
, 2, 1);
2669 if (yr
== AXP_REG_R16
)
2671 set_tok_reg (newtok
[0], AXP_REG_R16
);
2672 set_tok_reg (newtok
[1], AXP_REG_R17
);
2673 assemble_tokens ("mov", newtok
, 2, 1);
2676 if (xr
!= AXP_REG_R16
)
2678 set_tok_reg (newtok
[0], xr
);
2679 set_tok_reg (newtok
[1], AXP_REG_R16
);
2680 assemble_tokens ("mov", newtok
, 2, 1);
2683 if (yr
!= AXP_REG_R16
&& yr
!= AXP_REG_R17
)
2685 set_tok_reg (newtok
[0], yr
);
2686 set_tok_reg (newtok
[1], AXP_REG_R17
);
2687 assemble_tokens ("mov", newtok
, 2, 1);
2691 sym
= symbol_find_or_make ((const char *) symname
);
2693 set_tok_reg (newtok
[0], AXP_REG_AT
);
2694 set_tok_sym (newtok
[1], sym
, 0);
2695 assemble_tokens ("lda", newtok
, 2, 1);
2697 /* Call the division routine. */
2698 set_tok_reg (newtok
[0], AXP_REG_AT
);
2699 set_tok_cpreg (newtok
[1], AXP_REG_AT
);
2700 set_tok_const (newtok
[2], 0);
2701 assemble_tokens ("jsr", newtok
, 3, 1);
2703 /* Move the result to the right place. */
2704 if (rr
!= AXP_REG_R0
)
2706 set_tok_reg (newtok
[0], AXP_REG_R0
);
2707 set_tok_reg (newtok
[1], rr
);
2708 assemble_tokens ("mov", newtok
, 2, 1);
2712 #else /* !OBJ_EVAX */
2715 emit_division (const expressionS
*tok
,
2717 const void * symname
)
2719 /* DIVISION and MODULUS. Yech.
2729 with appropriate optimizations if t10,t11,t12 are the registers
2730 specified by the compiler. */
2734 expressionS newtok
[3];
2736 xr
= regno (tok
[0].X_add_number
);
2737 yr
= regno (tok
[1].X_add_number
);
2742 rr
= regno (tok
[2].X_add_number
);
2744 sym
= symbol_find_or_make ((const char *) symname
);
2746 /* Move the operands into the right place. */
2747 if (yr
== AXP_REG_T10
&& xr
== AXP_REG_T11
)
2749 /* They are in exactly the wrong order -- swap through AT. */
2751 as_bad (_("macro requires $at register while noat in effect"));
2753 set_tok_reg (newtok
[0], AXP_REG_T10
);
2754 set_tok_reg (newtok
[1], AXP_REG_AT
);
2755 assemble_tokens ("mov", newtok
, 2, 1);
2757 set_tok_reg (newtok
[0], AXP_REG_T11
);
2758 set_tok_reg (newtok
[1], AXP_REG_T10
);
2759 assemble_tokens ("mov", newtok
, 2, 1);
2761 set_tok_reg (newtok
[0], AXP_REG_AT
);
2762 set_tok_reg (newtok
[1], AXP_REG_T11
);
2763 assemble_tokens ("mov", newtok
, 2, 1);
2767 if (yr
== AXP_REG_T10
)
2769 set_tok_reg (newtok
[0], AXP_REG_T10
);
2770 set_tok_reg (newtok
[1], AXP_REG_T11
);
2771 assemble_tokens ("mov", newtok
, 2, 1);
2774 if (xr
!= AXP_REG_T10
)
2776 set_tok_reg (newtok
[0], xr
);
2777 set_tok_reg (newtok
[1], AXP_REG_T10
);
2778 assemble_tokens ("mov", newtok
, 2, 1);
2781 if (yr
!= AXP_REG_T10
&& yr
!= AXP_REG_T11
)
2783 set_tok_reg (newtok
[0], yr
);
2784 set_tok_reg (newtok
[1], AXP_REG_T11
);
2785 assemble_tokens ("mov", newtok
, 2, 1);
2789 /* Call the division routine. */
2790 set_tok_reg (newtok
[0], AXP_REG_T9
);
2791 set_tok_sym (newtok
[1], sym
, 0);
2792 assemble_tokens ("jsr", newtok
, 2, 1);
2794 /* Reload the GP register. */
2798 #if defined(OBJ_ECOFF) || defined(OBJ_ELF)
2799 set_tok_reg (newtok
[0], alpha_gp_register
);
2800 set_tok_const (newtok
[1], 0);
2801 set_tok_preg (newtok
[2], AXP_REG_T9
);
2802 assemble_tokens ("ldgp", newtok
, 3, 1);
2805 /* Move the result to the right place. */
2806 if (rr
!= AXP_REG_T12
)
2808 set_tok_reg (newtok
[0], AXP_REG_T12
);
2809 set_tok_reg (newtok
[1], rr
);
2810 assemble_tokens ("mov", newtok
, 2, 1);
2814 #endif /* !OBJ_EVAX */
2816 /* The jsr and jmp macros differ from their instruction counterparts
2817 in that they can load the target address and default most
2821 emit_jsrjmp (const expressionS
*tok
,
2823 const void * vopname
)
2825 const char *opname
= (const char *) vopname
;
2826 struct alpha_insn insn
;
2827 expressionS newtok
[3];
2831 if (tokidx
< ntok
&& tok
[tokidx
].X_op
== O_register
)
2832 r
= regno (tok
[tokidx
++].X_add_number
);
2834 r
= strcmp (opname
, "jmp") == 0 ? AXP_REG_ZERO
: AXP_REG_RA
;
2836 set_tok_reg (newtok
[0], r
);
2838 if (tokidx
< ntok
&&
2839 (tok
[tokidx
].X_op
== O_pregister
|| tok
[tokidx
].X_op
== O_cpregister
))
2840 r
= regno (tok
[tokidx
++].X_add_number
);
2842 /* Keep register if jsr $n.<sym>. */
2846 int basereg
= alpha_gp_register
;
2847 lituse
= load_expression (r
= AXP_REG_PV
, &tok
[tokidx
],
2848 &basereg
, NULL
, opname
);
2852 set_tok_cpreg (newtok
[1], r
);
2856 newtok
[2] = tok
[tokidx
];
2859 set_tok_const (newtok
[2], 0);
2861 assemble_tokens_to_insn (opname
, newtok
, 3, &insn
);
2865 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2866 insn
.fixups
[insn
.nfixups
].reloc
= DUMMY_RELOC_LITUSE_JSR
;
2867 insn
.fixups
[insn
.nfixups
].exp
.X_op
= O_absent
;
2869 insn
.sequence
= lituse
;
2873 if (alpha_flag_replace
2875 && tok
[tokidx
].X_add_symbol
2876 && alpha_linkage_symbol
)
2878 /* Create a BOH reloc for 'jsr $27,NAME'. */
2879 const char *symname
= S_GET_NAME (tok
[tokidx
].X_add_symbol
);
2880 int symlen
= strlen (symname
);
2883 /* Build the entry name as 'NAME..en'. */
2884 ensymname
= XNEWVEC (char, symlen
+ 5);
2885 memcpy (ensymname
, symname
, symlen
);
2886 memcpy (ensymname
+ symlen
, "..en", 5);
2888 gas_assert (insn
.nfixups
< MAX_INSN_FIXUPS
);
2889 if (insn
.nfixups
> 0)
2891 memmove (&insn
.fixups
[1], &insn
.fixups
[0],
2892 sizeof(struct alpha_fixup
) * insn
.nfixups
);
2895 /* The fixup must be the same as the BFD_RELOC_ALPHA_NOP
2896 case in load_expression. See B.4.5.2 of the OpenVMS
2897 Linker Utility Manual. */
2898 insn
.fixups
[0].reloc
= BFD_RELOC_ALPHA_BOH
;
2899 insn
.fixups
[0].exp
.X_op
= O_symbol
;
2900 insn
.fixups
[0].exp
.X_add_symbol
= symbol_find_or_make (ensymname
);
2901 insn
.fixups
[0].exp
.X_add_number
= 0;
2902 insn
.fixups
[0].xtrasym
= alpha_linkage_symbol
;
2903 insn
.fixups
[0].procsym
= alpha_evax_proc
->symbol
;
2905 alpha_linkage_symbol
= 0;
2913 /* The ret and jcr instructions differ from their instruction
2914 counterparts in that everything can be defaulted. */
2917 emit_retjcr (const expressionS
*tok
,
2919 const void * vopname
)
2921 const char *opname
= (const char *) vopname
;
2922 expressionS newtok
[3];
2925 if (tokidx
< ntok
&& tok
[tokidx
].X_op
== O_register
)
2926 r
= regno (tok
[tokidx
++].X_add_number
);
2930 set_tok_reg (newtok
[0], r
);
2932 if (tokidx
< ntok
&&
2933 (tok
[tokidx
].X_op
== O_pregister
|| tok
[tokidx
].X_op
== O_cpregister
))
2934 r
= regno (tok
[tokidx
++].X_add_number
);
2938 set_tok_cpreg (newtok
[1], r
);
2941 newtok
[2] = tok
[tokidx
];
2943 set_tok_const (newtok
[2], strcmp (opname
, "ret") == 0);
2945 assemble_tokens (opname
, newtok
, 3, 0);
2948 /* Implement the ldgp macro. */
2951 emit_ldgp (const expressionS
*tok ATTRIBUTE_UNUSED
,
2952 int ntok ATTRIBUTE_UNUSED
,
2953 const void * unused ATTRIBUTE_UNUSED
)
2958 #if defined(OBJ_ECOFF) || defined(OBJ_ELF)
2959 /* from "ldgp r1,n(r2)", generate "ldah r1,X(R2); lda r1,Y(r1)"
2960 with appropriate constants and relocations. */
2961 struct alpha_insn insn
;
2962 expressionS newtok
[3];
2966 if (regno (tok
[2].X_add_number
) == AXP_REG_PV
)
2967 ecoff_set_gp_prolog_size (0);
2971 set_tok_const (newtok
[1], 0);
2974 assemble_tokens_to_insn ("ldah", newtok
, 3, &insn
);
2979 if (addend
.X_op
!= O_constant
)
2980 as_bad (_("can not resolve expression"));
2981 addend
.X_op
= O_symbol
;
2982 addend
.X_add_symbol
= alpha_gp_symbol
;
2986 insn
.fixups
[0].exp
= addend
;
2987 insn
.fixups
[0].reloc
= BFD_RELOC_ALPHA_GPDISP_HI16
;
2988 insn
.sequence
= next_sequence_num
;
2992 set_tok_preg (newtok
[2], tok
[0].X_add_number
);
2994 assemble_tokens_to_insn ("lda", newtok
, 3, &insn
);
2997 addend
.X_add_number
+= 4;
3001 insn
.fixups
[0].exp
= addend
;
3002 insn
.fixups
[0].reloc
= BFD_RELOC_ALPHA_GPDISP_LO16
;
3003 insn
.sequence
= next_sequence_num
--;
3006 #endif /* OBJ_ECOFF || OBJ_ELF */
3009 /* The macro table. */
3011 static const struct alpha_macro alpha_macros
[] =
3013 /* Load/Store macros. */
3014 { "lda", emit_lda
, NULL
,
3015 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3016 { "ldah", emit_ldah
, NULL
,
3017 { MACRO_IR
, MACRO_EXP
, MACRO_EOA
} },
3019 { "ldl", emit_ir_load
, "ldl",
3020 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3021 { "ldl_l", emit_ir_load
, "ldl_l",
3022 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3023 { "ldq", emit_ir_load
, "ldq",
3024 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3025 { "ldq_l", emit_ir_load
, "ldq_l",
3026 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3027 { "ldq_u", emit_ir_load
, "ldq_u",
3028 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3029 { "ldf", emit_loadstore
, "ldf",
3030 { MACRO_FPR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3031 { "ldg", emit_loadstore
, "ldg",
3032 { MACRO_FPR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3033 { "lds", emit_loadstore
, "lds",
3034 { MACRO_FPR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3035 { "ldt", emit_loadstore
, "ldt",
3036 { MACRO_FPR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3038 { "ldb", emit_ldX
, (void *) 0,
3039 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3040 { "ldbu", emit_ldXu
, (void *) 0,
3041 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3042 { "ldw", emit_ldX
, (void *) 1,
3043 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3044 { "ldwu", emit_ldXu
, (void *) 1,
3045 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3047 { "uldw", emit_uldX
, (void *) 1,
3048 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3049 { "uldwu", emit_uldXu
, (void *) 1,
3050 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3051 { "uldl", emit_uldX
, (void *) 2,
3052 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3053 { "uldlu", emit_uldXu
, (void *) 2,
3054 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3055 { "uldq", emit_uldXu
, (void *) 3,
3056 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3058 { "ldgp", emit_ldgp
, NULL
,
3059 { MACRO_IR
, MACRO_EXP
, MACRO_PIR
, MACRO_EOA
} },
3061 { "ldi", emit_lda
, NULL
,
3062 { MACRO_IR
, MACRO_EXP
, MACRO_EOA
} },
3063 { "ldil", emit_ldil
, NULL
,
3064 { MACRO_IR
, MACRO_EXP
, MACRO_EOA
} },
3065 { "ldiq", emit_lda
, NULL
,
3066 { MACRO_IR
, MACRO_EXP
, MACRO_EOA
} },
3068 { "stl", emit_loadstore
, "stl",
3069 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3070 { "stl_c", emit_loadstore
, "stl_c",
3071 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3072 { "stq", emit_loadstore
, "stq",
3073 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3074 { "stq_c", emit_loadstore
, "stq_c",
3075 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3076 { "stq_u", emit_loadstore
, "stq_u",
3077 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3078 { "stf", emit_loadstore
, "stf",
3079 { MACRO_FPR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3080 { "stg", emit_loadstore
, "stg",
3081 { MACRO_FPR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3082 { "sts", emit_loadstore
, "sts",
3083 { MACRO_FPR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3084 { "stt", emit_loadstore
, "stt",
3085 { MACRO_FPR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3087 { "stb", emit_stX
, (void *) 0,
3088 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3089 { "stw", emit_stX
, (void *) 1,
3090 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3091 { "ustw", emit_ustX
, (void *) 1,
3092 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3093 { "ustl", emit_ustX
, (void *) 2,
3094 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3095 { "ustq", emit_ustX
, (void *) 3,
3096 { MACRO_IR
, MACRO_EXP
, MACRO_OPIR
, MACRO_EOA
} },
3098 /* Arithmetic macros. */
3100 { "sextb", emit_sextX
, (void *) 0,
3101 { MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3102 MACRO_IR
, MACRO_EOA
,
3103 /* MACRO_EXP, MACRO_IR, MACRO_EOA */ } },
3104 { "sextw", emit_sextX
, (void *) 1,
3105 { MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3106 MACRO_IR
, MACRO_EOA
,
3107 /* MACRO_EXP, MACRO_IR, MACRO_EOA */ } },
3109 { "divl", emit_division
, "__divl",
3110 { MACRO_IR
, MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3111 MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3112 /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA,
3113 MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
3114 { "divlu", emit_division
, "__divlu",
3115 { MACRO_IR
, MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3116 MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3117 /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA,
3118 MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
3119 { "divq", emit_division
, "__divq",
3120 { MACRO_IR
, MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3121 MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3122 /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA,
3123 MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
3124 { "divqu", emit_division
, "__divqu",
3125 { MACRO_IR
, MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3126 MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3127 /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA,
3128 MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
3129 { "reml", emit_division
, "__reml",
3130 { MACRO_IR
, MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3131 MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3132 /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA,
3133 MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
3134 { "remlu", emit_division
, "__remlu",
3135 { MACRO_IR
, MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3136 MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3137 /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA,
3138 MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
3139 { "remq", emit_division
, "__remq",
3140 { MACRO_IR
, MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3141 MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3142 /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA,
3143 MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
3144 { "remqu", emit_division
, "__remqu",
3145 { MACRO_IR
, MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3146 MACRO_IR
, MACRO_IR
, MACRO_EOA
,
3147 /* MACRO_IR, MACRO_EXP, MACRO_IR, MACRO_EOA,
3148 MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
3150 { "jsr", emit_jsrjmp
, "jsr",
3151 { MACRO_PIR
, MACRO_EXP
, MACRO_EOA
,
3152 MACRO_PIR
, MACRO_EOA
,
3153 MACRO_IR
, MACRO_EXP
, MACRO_EOA
,
3154 MACRO_EXP
, MACRO_EOA
} },
3155 { "jmp", emit_jsrjmp
, "jmp",
3156 { MACRO_PIR
, MACRO_EXP
, MACRO_EOA
,
3157 MACRO_PIR
, MACRO_EOA
,
3158 MACRO_IR
, MACRO_EXP
, MACRO_EOA
,
3159 MACRO_EXP
, MACRO_EOA
} },
3160 { "ret", emit_retjcr
, "ret",
3161 { MACRO_IR
, MACRO_EXP
, MACRO_EOA
,
3162 MACRO_IR
, MACRO_EOA
,
3163 MACRO_PIR
, MACRO_EXP
, MACRO_EOA
,
3164 MACRO_PIR
, MACRO_EOA
,
3165 MACRO_EXP
, MACRO_EOA
,
3167 { "jcr", emit_retjcr
, "jcr",
3168 { MACRO_IR
, MACRO_EXP
, MACRO_EOA
,
3169 MACRO_IR
, MACRO_EOA
,
3170 MACRO_PIR
, MACRO_EXP
, MACRO_EOA
,
3171 MACRO_PIR
, MACRO_EOA
,
3172 MACRO_EXP
, MACRO_EOA
,
3174 { "jsr_coroutine", emit_retjcr
, "jcr",
3175 { MACRO_IR
, MACRO_EXP
, MACRO_EOA
,
3176 MACRO_IR
, MACRO_EOA
,
3177 MACRO_PIR
, MACRO_EXP
, MACRO_EOA
,
3178 MACRO_PIR
, MACRO_EOA
,
3179 MACRO_EXP
, MACRO_EOA
,
3183 static const unsigned int alpha_num_macros
3184 = sizeof (alpha_macros
) / sizeof (*alpha_macros
);
3186 /* Search forward through all variants of a macro looking for a syntax
3189 static const struct alpha_macro
*
3190 find_macro_match (const struct alpha_macro
*first_macro
,
3191 const expressionS
*tok
,
3195 const struct alpha_macro
*macro
= first_macro
;
3200 const enum alpha_macro_arg
*arg
= macro
->argsets
;
3214 /* Index register. */
3216 if (tokidx
>= ntok
|| tok
[tokidx
].X_op
!= O_register
3217 || !is_ir_num (tok
[tokidx
].X_add_number
))
3222 /* Parenthesized index register. */
3224 if (tokidx
>= ntok
|| tok
[tokidx
].X_op
!= O_pregister
3225 || !is_ir_num (tok
[tokidx
].X_add_number
))
3230 /* Optional parenthesized index register. */
3232 if (tokidx
< ntok
&& tok
[tokidx
].X_op
== O_pregister
3233 && is_ir_num (tok
[tokidx
].X_add_number
))
3237 /* Leading comma with a parenthesized index register. */
3239 if (tokidx
>= ntok
|| tok
[tokidx
].X_op
!= O_cpregister
3240 || !is_ir_num (tok
[tokidx
].X_add_number
))
3245 /* Floating point register. */
3247 if (tokidx
>= ntok
|| tok
[tokidx
].X_op
!= O_register
3248 || !is_fpr_num (tok
[tokidx
].X_add_number
))
3253 /* Normal expression. */
3257 switch (tok
[tokidx
].X_op
)
3266 case O_lituse_bytoff
:
3282 while (*arg
!= MACRO_EOA
)
3290 while (++macro
- alpha_macros
< (int) alpha_num_macros
3291 && !strcmp (macro
->name
, first_macro
->name
));
3296 /* Given an opcode name and a pre-tokenized set of arguments, take the
3297 opcode all the way through emission. */
3300 assemble_tokens (const char *opname
,
3301 const expressionS
*tok
,
3303 int local_macros_on
)
3305 int found_something
= 0;
3306 const struct alpha_opcode
*opcode
;
3307 const struct alpha_macro
*macro
;
3309 extended_bfd_reloc_code_real_type reloc
= BFD_RELOC_UNUSED
;
3312 /* If a user-specified relocation is present, this is not a macro. */
3313 if (ntok
&& USER_RELOC_P (tok
[ntok
- 1].X_op
))
3315 reloc
= ALPHA_RELOC_TABLE (tok
[ntok
- 1].X_op
)->reloc
;
3320 if (local_macros_on
)
3322 macro
= ((const struct alpha_macro
*)
3323 hash_find (alpha_macro_hash
, opname
));
3326 found_something
= 1;
3327 macro
= find_macro_match (macro
, tok
, &ntok
);
3330 (*macro
->emit
) (tok
, ntok
, macro
->arg
);
3336 /* Search opcodes. */
3337 opcode
= (const struct alpha_opcode
*) hash_find (alpha_opcode_hash
, opname
);
3340 found_something
= 1;
3341 opcode
= find_opcode_match (opcode
, tok
, &ntok
, &cpumatch
);
3344 struct alpha_insn insn
;
3345 assemble_insn (opcode
, tok
, ntok
, &insn
, reloc
);
3347 /* Copy the sequence number for the reloc from the reloc token. */
3348 if (reloc
!= BFD_RELOC_UNUSED
)
3349 insn
.sequence
= tok
[ntok
].X_add_number
;
3356 if (found_something
)
3359 as_bad (_("inappropriate arguments for opcode `%s'"), opname
);
3361 as_bad (_("opcode `%s' not supported for target %s"), opname
,
3365 as_bad (_("unknown opcode `%s'"), opname
);
3370 /* Add sym+addend to link pool.
3371 Return offset from curent procedure value (pv) to entry in link pool.
3373 Add new fixup only if offset isn't 16bit. */
3376 add_to_link_pool (symbolS
*sym
, offsetT addend
)
3379 segT current_section
= now_seg
;
3380 int current_subsec
= now_subseg
;
3382 segment_info_type
*seginfo
= seg_info (alpha_link_section
);
3384 symbolS
*linksym
, *expsym
;
3387 basesym
= alpha_evax_proc
->symbol
;
3389 /* @@ This assumes all entries in a given section will be of the same
3390 size... Probably correct, but unwise to rely on. */
3391 /* This must always be called with the same subsegment. */
3393 if (seginfo
->frchainP
)
3394 for (fixp
= seginfo
->frchainP
->fix_root
;
3395 fixp
!= (fixS
*) NULL
;
3396 fixp
= fixp
->fx_next
)
3398 if (fixp
->fx_addsy
== sym
3399 && fixp
->fx_offset
== (valueT
)addend
3400 && fixp
->tc_fix_data
.info
3401 && fixp
->tc_fix_data
.info
->sym
3402 && fixp
->tc_fix_data
.info
->sym
->sy_value
.X_op_symbol
== basesym
)
3403 return fixp
->tc_fix_data
.info
->sym
;
3406 /* Not found, add a new entry. */
3407 subseg_set (alpha_link_section
, 0);
3408 linksym
= symbol_new
3409 (FAKE_LABEL_NAME
, now_seg
, (valueT
) frag_now_fix (), frag_now
);
3413 /* Create a symbol for 'basesym - linksym' (offset of the added entry). */
3414 e
.X_op
= O_subtract
;
3415 e
.X_add_symbol
= linksym
;
3416 e
.X_op_symbol
= basesym
;
3418 expsym
= make_expr_symbol (&e
);
3420 /* Create a fixup for the entry. */
3422 (frag_now
, p
- frag_now
->fr_literal
, 8, sym
, addend
, 0, BFD_RELOC_64
);
3423 fixp
->tc_fix_data
.info
= get_alpha_reloc_tag (next_sequence_num
--);
3424 fixp
->tc_fix_data
.info
->sym
= expsym
;
3426 subseg_set (current_section
, current_subsec
);
3428 /* Return the symbol. */
3431 #endif /* OBJ_EVAX */
3433 /* Assembler directives. */
3435 /* Handle the .text pseudo-op. This is like the usual one, but it
3436 clears alpha_insn_label and restores auto alignment. */
3439 s_alpha_text (int i
)
3450 symbolP
= symbol_find (".text");
3451 if (symbolP
== NULL
)
3453 symbolP
= symbol_make (".text");
3454 S_SET_SEGMENT (symbolP
, text_section
);
3455 symbol_table_insert (symbolP
);
3459 alpha_insn_label
= NULL
;
3460 alpha_auto_align_on
= 1;
3461 alpha_current_align
= 0;
3464 /* Handle the .data pseudo-op. This is like the usual one, but it
3465 clears alpha_insn_label and restores auto alignment. */
3468 s_alpha_data (int i
)
3475 alpha_insn_label
= NULL
;
3476 alpha_auto_align_on
= 1;
3477 alpha_current_align
= 0;
3480 #if defined (OBJ_ECOFF) || defined (OBJ_EVAX)
3482 /* Handle the OSF/1 and openVMS .comm pseudo quirks. */
3485 s_alpha_comm (int ignore ATTRIBUTE_UNUSED
)
3497 c
= get_symbol_name (&name
);
3499 /* Just after name is now '\0'. */
3500 p
= input_line_pointer
;
3503 SKIP_WHITESPACE_AFTER_NAME ();
3505 /* Alpha OSF/1 compiler doesn't provide the comma, gcc does. */
3506 if (*input_line_pointer
== ',')
3508 input_line_pointer
++;
3511 if ((size
= get_absolute_expression ()) < 0)
3513 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
3514 ignore_rest_of_line ();
3519 symbolP
= symbol_find_or_make (name
);
3522 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
3524 as_bad (_("Ignoring attempt to re-define symbol"));
3525 ignore_rest_of_line ();
3530 if (*input_line_pointer
!= ',')
3531 temp
= 8; /* Default alignment. */
3534 input_line_pointer
++;
3536 temp
= get_absolute_expression ();
3539 /* ??? Unlike on OSF/1, the alignment factor is not in log units. */
3540 while ((temp
>>= 1) != 0)
3543 if (*input_line_pointer
== ',')
3545 /* Extended form of the directive
3547 .comm symbol, size, alignment, section
3549 where the "common" semantics is transferred to the section.
3550 The symbol is effectively an alias for the section name. */
3553 const char *sec_name
;
3554 symbolS
*sec_symbol
;
3555 segT current_seg
= now_seg
;
3556 subsegT current_subseg
= now_subseg
;
3559 input_line_pointer
++;
3561 sec_name
= s_alpha_section_name ();
3562 sec_symbol
= symbol_find_or_make (sec_name
);
3563 sec
= subseg_new (sec_name
, 0);
3564 S_SET_SEGMENT (sec_symbol
, sec
);
3565 symbol_get_bfdsym (sec_symbol
)->flags
|= BSF_SECTION_SYM
;
3566 bfd_vms_set_section_flags (stdoutput
, sec
, 0,
3567 EGPS__V_OVR
| EGPS__V_GBL
| EGPS__V_NOMOD
);
3568 record_alignment (sec
, log_align
);
3570 /* Reuse stab_string_size to store the size of the section. */
3571 cur_size
= seg_info (sec
)->stabu
.stab_string_size
;
3572 if ((int) size
> cur_size
)
3575 = frag_var (rs_fill
, 1, 1, (relax_substateT
)0, NULL
,
3576 (valueT
)size
- (valueT
)cur_size
, NULL
);
3578 seg_info (sec
)->stabu
.stab_string_size
= (int)size
;
3581 S_SET_SEGMENT (symbolP
, sec
);
3583 subseg_set (current_seg
, current_subseg
);
3587 /* Regular form of the directive
3589 .comm symbol, size, alignment
3591 where the "common" semantics in on the symbol.
3592 These symbols are assembled in the .bss section. */
3595 segT current_seg
= now_seg
;
3596 subsegT current_subseg
= now_subseg
;
3598 subseg_set (bss_section
, 1);
3599 frag_align (log_align
, 0, 0);
3600 record_alignment (bss_section
, log_align
);
3602 symbol_set_frag (symbolP
, frag_now
);
3603 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
)0, symbolP
,
3607 S_SET_SEGMENT (symbolP
, bss_section
);
3609 subseg_set (current_seg
, current_subseg
);
3613 if (S_GET_VALUE (symbolP
))
3615 if (S_GET_VALUE (symbolP
) != (valueT
) size
)
3616 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
3617 S_GET_NAME (symbolP
),
3618 (long) S_GET_VALUE (symbolP
),
3624 S_SET_VALUE (symbolP
, (valueT
) size
);
3626 S_SET_EXTERNAL (symbolP
);
3630 know (symbolP
->sy_frag
== &zero_address_frag
);
3632 demand_empty_rest_of_line ();
3635 #endif /* ! OBJ_ELF */
3639 /* Handle the .rdata pseudo-op. This is like the usual one, but it
3640 clears alpha_insn_label and restores auto alignment. */
3643 s_alpha_rdata (int ignore ATTRIBUTE_UNUSED
)
3645 get_absolute_expression ();
3646 subseg_new (".rdata", 0);
3647 demand_empty_rest_of_line ();
3648 alpha_insn_label
= NULL
;
3649 alpha_auto_align_on
= 1;
3650 alpha_current_align
= 0;
3657 /* Handle the .sdata pseudo-op. This is like the usual one, but it
3658 clears alpha_insn_label and restores auto alignment. */
3661 s_alpha_sdata (int ignore ATTRIBUTE_UNUSED
)
3663 get_absolute_expression ();
3664 subseg_new (".sdata", 0);
3665 demand_empty_rest_of_line ();
3666 alpha_insn_label
= NULL
;
3667 alpha_auto_align_on
= 1;
3668 alpha_current_align
= 0;
3673 struct alpha_elf_frame_data
3676 symbolS
*func_end_sym
;
3677 symbolS
*prologue_sym
;
3683 offsetT mask_offset
;
3684 offsetT fmask_offset
;
3686 struct alpha_elf_frame_data
*next
;
3689 static struct alpha_elf_frame_data
*all_frame_data
;
3690 static struct alpha_elf_frame_data
**plast_frame_data
= &all_frame_data
;
3691 static struct alpha_elf_frame_data
*cur_frame_data
;
3693 extern int all_cfi_sections
;
3695 /* Handle the .section pseudo-op. This is like the usual one, but it
3696 clears alpha_insn_label and restores auto alignment. */
3699 s_alpha_section (int ignore ATTRIBUTE_UNUSED
)
3701 obj_elf_section (ignore
);
3703 alpha_insn_label
= NULL
;
3704 alpha_auto_align_on
= 1;
3705 alpha_current_align
= 0;
3709 s_alpha_ent (int dummy ATTRIBUTE_UNUSED
)
3711 if (ECOFF_DEBUGGING
)
3712 ecoff_directive_ent (0);
3715 char *name
, name_end
;
3717 name_end
= get_symbol_name (&name
);
3718 /* CFI_EMIT_eh_frame is the default. */
3719 all_cfi_sections
= CFI_EMIT_eh_frame
;
3721 if (! is_name_beginner (*name
))
3723 as_warn (_(".ent directive has no name"));
3724 (void) restore_line_pointer (name_end
);
3731 as_warn (_("nested .ent directives"));
3733 sym
= symbol_find_or_make (name
);
3734 symbol_get_bfdsym (sym
)->flags
|= BSF_FUNCTION
;
3736 cur_frame_data
= XCNEW (struct alpha_elf_frame_data
);
3737 cur_frame_data
->func_sym
= sym
;
3739 /* Provide sensible defaults. */
3740 cur_frame_data
->fp_regno
= 30; /* sp */
3741 cur_frame_data
->ra_regno
= 26; /* ra */
3743 *plast_frame_data
= cur_frame_data
;
3744 plast_frame_data
= &cur_frame_data
->next
;
3746 /* The .ent directive is sometimes followed by a number. Not sure
3747 what it really means, but ignore it. */
3748 *input_line_pointer
= name_end
;
3749 SKIP_WHITESPACE_AFTER_NAME ();
3750 if (*input_line_pointer
== ',')
3752 input_line_pointer
++;
3755 if (ISDIGIT (*input_line_pointer
) || *input_line_pointer
== '-')
3756 (void) get_absolute_expression ();
3758 demand_empty_rest_of_line ();
3763 s_alpha_end (int dummy ATTRIBUTE_UNUSED
)
3765 if (ECOFF_DEBUGGING
)
3766 ecoff_directive_end (0);
3769 char *name
, name_end
;
3771 name_end
= get_symbol_name (&name
);
3773 if (! is_name_beginner (*name
))
3775 as_warn (_(".end directive has no name"));
3781 sym
= symbol_find (name
);
3782 if (!cur_frame_data
)
3783 as_warn (_(".end directive without matching .ent"));
3784 else if (sym
!= cur_frame_data
->func_sym
)
3785 as_warn (_(".end directive names different symbol than .ent"));
3787 /* Create an expression to calculate the size of the function. */
3788 if (sym
&& cur_frame_data
)
3790 OBJ_SYMFIELD_TYPE
*obj
= symbol_get_obj (sym
);
3791 expressionS
*exp
= XNEW (expressionS
);
3794 exp
->X_op
= O_subtract
;
3795 exp
->X_add_symbol
= symbol_temp_new_now ();
3796 exp
->X_op_symbol
= sym
;
3797 exp
->X_add_number
= 0;
3799 cur_frame_data
->func_end_sym
= exp
->X_add_symbol
;
3802 cur_frame_data
= NULL
;
3805 (void) restore_line_pointer (name_end
);
3806 demand_empty_rest_of_line ();
3811 s_alpha_mask (int fp
)
3813 if (ECOFF_DEBUGGING
)
3816 ecoff_directive_fmask (0);
3818 ecoff_directive_mask (0);
3825 if (!cur_frame_data
)
3828 as_warn (_(".fmask outside of .ent"));
3830 as_warn (_(".mask outside of .ent"));
3831 discard_rest_of_line ();
3835 if (get_absolute_expression_and_terminator (&val
) != ',')
3838 as_warn (_("bad .fmask directive"));
3840 as_warn (_("bad .mask directive"));
3841 --input_line_pointer
;
3842 discard_rest_of_line ();
3846 offset
= get_absolute_expression ();
3847 demand_empty_rest_of_line ();
3851 cur_frame_data
->fmask
= val
;
3852 cur_frame_data
->fmask_offset
= offset
;
3856 cur_frame_data
->mask
= val
;
3857 cur_frame_data
->mask_offset
= offset
;
3863 s_alpha_frame (int dummy ATTRIBUTE_UNUSED
)
3865 if (ECOFF_DEBUGGING
)
3866 ecoff_directive_frame (0);
3871 if (!cur_frame_data
)
3873 as_warn (_(".frame outside of .ent"));
3874 discard_rest_of_line ();
3878 cur_frame_data
->fp_regno
= tc_get_register (1);
3881 if (*input_line_pointer
++ != ','
3882 || get_absolute_expression_and_terminator (&val
) != ',')
3884 as_warn (_("bad .frame directive"));
3885 --input_line_pointer
;
3886 discard_rest_of_line ();
3889 cur_frame_data
->frame_size
= val
;
3891 cur_frame_data
->ra_regno
= tc_get_register (0);
3893 /* Next comes the "offset of saved $a0 from $sp". In gcc terms
3894 this is current_function_pretend_args_size. There's no place
3895 to put this value, so ignore it. */
3901 s_alpha_prologue (int ignore ATTRIBUTE_UNUSED
)
3906 arg
= get_absolute_expression ();
3907 demand_empty_rest_of_line ();
3908 alpha_prologue_label
= symbol_new
3909 (FAKE_LABEL_NAME
, now_seg
, (valueT
) frag_now_fix (), frag_now
);
3911 if (ECOFF_DEBUGGING
)
3912 sym
= ecoff_get_cur_proc_sym ();
3914 sym
= cur_frame_data
? cur_frame_data
->func_sym
: NULL
;
3918 as_bad (_(".prologue directive without a preceding .ent directive"));
3924 case 0: /* No PV required. */
3925 S_SET_OTHER (sym
, STO_ALPHA_NOPV
3926 | (S_GET_OTHER (sym
) & ~STO_ALPHA_STD_GPLOAD
));
3928 case 1: /* Std GP load. */
3929 S_SET_OTHER (sym
, STO_ALPHA_STD_GPLOAD
3930 | (S_GET_OTHER (sym
) & ~STO_ALPHA_STD_GPLOAD
));
3932 case 2: /* Non-std use of PV. */
3936 as_bad (_("Invalid argument %d to .prologue."), arg
);
3941 cur_frame_data
->prologue_sym
= symbol_temp_new_now ();
3944 static char *first_file_directive
;
3947 s_alpha_file (int ignore ATTRIBUTE_UNUSED
)
3949 /* Save the first .file directive we see, so that we can change our
3950 minds about whether ecoff debugging should or shouldn't be enabled. */
3951 if (alpha_flag_mdebug
< 0 && ! first_file_directive
)
3953 char *start
= input_line_pointer
;
3956 discard_rest_of_line ();
3958 len
= input_line_pointer
- start
;
3959 first_file_directive
= xmemdup0 (start
, len
);
3961 input_line_pointer
= start
;
3964 if (ECOFF_DEBUGGING
)
3965 ecoff_directive_file (0);
3967 dwarf2_directive_file (0);
3971 s_alpha_loc (int ignore ATTRIBUTE_UNUSED
)
3973 if (ECOFF_DEBUGGING
)
3974 ecoff_directive_loc (0);
3976 dwarf2_directive_loc (0);
3980 s_alpha_stab (int n
)
3982 /* If we've been undecided about mdebug, make up our minds in favour. */
3983 if (alpha_flag_mdebug
< 0)
3985 segT sec
= subseg_new (".mdebug", 0);
3986 bfd_set_section_flags (stdoutput
, sec
, SEC_HAS_CONTENTS
| SEC_READONLY
);
3987 bfd_set_section_alignment (stdoutput
, sec
, 3);
3989 ecoff_read_begin_hook ();
3991 if (first_file_directive
)
3993 char *save_ilp
= input_line_pointer
;
3994 input_line_pointer
= first_file_directive
;
3995 ecoff_directive_file (0);
3996 input_line_pointer
= save_ilp
;
3997 free (first_file_directive
);
4000 alpha_flag_mdebug
= 1;
4006 s_alpha_coff_wrapper (int which
)
4008 static void (* const fns
[]) (int) = {
4009 ecoff_directive_begin
,
4010 ecoff_directive_bend
,
4011 ecoff_directive_def
,
4012 ecoff_directive_dim
,
4013 ecoff_directive_endef
,
4014 ecoff_directive_scl
,
4015 ecoff_directive_tag
,
4016 ecoff_directive_val
,
4019 gas_assert (which
>= 0 && which
< (int) (sizeof (fns
)/sizeof (*fns
)));
4021 if (ECOFF_DEBUGGING
)
4025 as_bad (_("ECOFF debugging is disabled."));
4026 ignore_rest_of_line ();
4030 /* Called at the end of assembly. Here we emit unwind info for frames
4031 unless the compiler has done it for us. */
4034 alpha_elf_md_end (void)
4036 struct alpha_elf_frame_data
*p
;
4039 as_warn (_(".ent directive without matching .end"));
4041 /* If someone has generated the unwind info themselves, great. */
4042 if (bfd_get_section_by_name (stdoutput
, ".eh_frame") != NULL
)
4045 /* ??? In theory we could look for functions for which we have
4046 generated unwind info via CFI directives, and those we have not.
4047 Those we have not could still get their unwind info from here.
4048 For now, do nothing if we've seen any CFI directives. Note that
4049 the above test will not trigger, as we've not emitted data yet. */
4050 if (all_fde_data
!= NULL
)
4053 /* Generate .eh_frame data for the unwind directives specified. */
4054 for (p
= all_frame_data
; p
; p
= p
->next
)
4055 if (p
->prologue_sym
)
4057 /* Create a temporary symbol at the same location as our
4058 function symbol. This prevents problems with globals. */
4059 cfi_new_fde (symbol_temp_new (S_GET_SEGMENT (p
->func_sym
),
4060 S_GET_VALUE (p
->func_sym
),
4061 symbol_get_frag (p
->func_sym
)));
4063 cfi_set_sections ();
4064 cfi_set_return_column (p
->ra_regno
);
4065 cfi_add_CFA_def_cfa_register (30);
4066 if (p
->fp_regno
!= 30 || p
->mask
|| p
->fmask
|| p
->frame_size
)
4071 cfi_add_advance_loc (p
->prologue_sym
);
4073 if (p
->fp_regno
!= 30)
4074 if (p
->frame_size
!= 0)
4075 cfi_add_CFA_def_cfa (p
->fp_regno
, p
->frame_size
);
4077 cfi_add_CFA_def_cfa_register (p
->fp_regno
);
4078 else if (p
->frame_size
!= 0)
4079 cfi_add_CFA_def_cfa_offset (p
->frame_size
);
4082 offset
= p
->mask_offset
;
4084 /* Recall that $26 is special-cased and stored first. */
4085 if ((mask
>> 26) & 1)
4087 cfi_add_CFA_offset (26, offset
);
4098 cfi_add_CFA_offset (i
, offset
);
4103 offset
= p
->fmask_offset
;
4111 cfi_add_CFA_offset (i
+ 32, offset
);
4116 cfi_end_fde (p
->func_end_sym
);
4121 s_alpha_usepv (int unused ATTRIBUTE_UNUSED
)
4123 char *name
, name_end
;
4124 char *which
, which_end
;
4128 name_end
= get_symbol_name (&name
);
4130 if (! is_name_beginner (*name
))
4132 as_bad (_(".usepv directive has no name"));
4133 (void) restore_line_pointer (name_end
);
4134 ignore_rest_of_line ();
4138 sym
= symbol_find_or_make (name
);
4139 name_end
= restore_line_pointer (name_end
);
4140 if (! is_end_of_line
[(unsigned char) name_end
])
4141 input_line_pointer
++;
4143 if (name_end
!= ',')
4145 as_bad (_(".usepv directive has no type"));
4146 ignore_rest_of_line ();
4152 which_end
= get_symbol_name (&which
);
4154 if (strcmp (which
, "no") == 0)
4155 other
= STO_ALPHA_NOPV
;
4156 else if (strcmp (which
, "std") == 0)
4157 other
= STO_ALPHA_STD_GPLOAD
;
4160 as_bad (_("unknown argument for .usepv"));
4164 (void) restore_line_pointer (which_end
);
4165 demand_empty_rest_of_line ();
4167 S_SET_OTHER (sym
, other
| (S_GET_OTHER (sym
) & ~STO_ALPHA_STD_GPLOAD
));
4169 #endif /* OBJ_ELF */
4171 /* Standard calling conventions leaves the CFA at $30 on entry. */
4174 alpha_cfi_frame_initial_instructions (void)
4176 cfi_add_CFA_def_cfa_register (30);
4181 /* Get name of section. */
4183 s_alpha_section_name (void)
4188 if (*input_line_pointer
== '"')
4192 name
= demand_copy_C_string (&dummy
);
4195 ignore_rest_of_line ();
4201 char *end
= input_line_pointer
;
4203 while (0 == strchr ("\n\t,; ", *end
))
4205 if (end
== input_line_pointer
)
4207 as_warn (_("missing name"));
4208 ignore_rest_of_line ();
4212 name
= xmemdup0 (input_line_pointer
, end
- input_line_pointer
);
4213 input_line_pointer
= end
;
4219 /* Put clear/set flags in one flagword. The LSBs are flags to be set,
4220 the MSBs are the flags to be cleared. */
4222 #define EGPS__V_NO_SHIFT 16
4223 #define EGPS__V_MASK 0xffff
4225 /* Parse one VMS section flag. */
4228 s_alpha_section_word (char *str
, size_t len
)
4233 if (len
== 5 && strncmp (str
, "NO", 2) == 0)
4242 if (strncmp (str
, "PIC", 3) == 0)
4244 else if (strncmp (str
, "LIB", 3) == 0)
4246 else if (strncmp (str
, "OVR", 3) == 0)
4248 else if (strncmp (str
, "REL", 3) == 0)
4250 else if (strncmp (str
, "GBL", 3) == 0)
4252 else if (strncmp (str
, "SHR", 3) == 0)
4254 else if (strncmp (str
, "EXE", 3) == 0)
4256 else if (strncmp (str
, "WRT", 3) == 0)
4258 else if (strncmp (str
, "VEC", 3) == 0)
4260 else if (strncmp (str
, "MOD", 3) == 0)
4262 flag
= no
? EGPS__V_NOMOD
: EGPS__V_NOMOD
<< EGPS__V_NO_SHIFT
;
4265 else if (strncmp (str
, "COM", 3) == 0)
4273 as_warn (_("unknown section attribute %s"), str
);
4279 return flag
<< EGPS__V_NO_SHIFT
;
4284 /* Handle the section specific pseudo-op. */
4286 #define EVAX_SECTION_COUNT 5
4288 static const char *section_name
[EVAX_SECTION_COUNT
+ 1] =
4289 { "NULL", ".rdata", ".comm", ".link", ".ctors", ".dtors" };
4292 s_alpha_section (int secid
)
4297 flagword vms_flags
= 0;
4302 name
= s_alpha_section_name ();
4305 sec
= subseg_new (name
, 0);
4306 if (*input_line_pointer
== ',')
4308 /* Skip the comma. */
4309 ++input_line_pointer
;
4317 c
= get_symbol_name (&beg
);
4318 *input_line_pointer
= c
;
4320 vms_flags
|= s_alpha_section_word (beg
, input_line_pointer
- beg
);
4322 SKIP_WHITESPACE_AFTER_NAME ();
4324 while (*input_line_pointer
++ == ',');
4326 --input_line_pointer
;
4329 symbol
= symbol_find_or_make (name
);
4330 S_SET_SEGMENT (symbol
, sec
);
4331 symbol_get_bfdsym (symbol
)->flags
|= BSF_SECTION_SYM
;
4332 bfd_vms_set_section_flags
4334 (vms_flags
>> EGPS__V_NO_SHIFT
) & EGPS__V_MASK
,
4335 vms_flags
& EGPS__V_MASK
);
4339 get_absolute_expression ();
4340 subseg_new (section_name
[secid
], 0);
4343 demand_empty_rest_of_line ();
4344 alpha_insn_label
= NULL
;
4345 alpha_auto_align_on
= 1;
4346 alpha_current_align
= 0;
4350 s_alpha_literals (int ignore ATTRIBUTE_UNUSED
)
4352 subseg_new (".literals", 0);
4353 demand_empty_rest_of_line ();
4354 alpha_insn_label
= NULL
;
4355 alpha_auto_align_on
= 1;
4356 alpha_current_align
= 0;
4359 /* Parse .ent directives. */
4362 s_alpha_ent (int ignore ATTRIBUTE_UNUSED
)
4365 expressionS symexpr
;
4367 if (alpha_evax_proc
!= NULL
)
4368 as_bad (_("previous .ent not closed by a .end"));
4370 alpha_evax_proc
= &alpha_evax_proc_data
;
4372 alpha_evax_proc
->pdsckind
= 0;
4373 alpha_evax_proc
->framereg
= -1;
4374 alpha_evax_proc
->framesize
= 0;
4375 alpha_evax_proc
->rsa_offset
= 0;
4376 alpha_evax_proc
->ra_save
= AXP_REG_RA
;
4377 alpha_evax_proc
->fp_save
= -1;
4378 alpha_evax_proc
->imask
= 0;
4379 alpha_evax_proc
->fmask
= 0;
4380 alpha_evax_proc
->prologue
= 0;
4381 alpha_evax_proc
->type
= 0;
4382 alpha_evax_proc
->handler
= 0;
4383 alpha_evax_proc
->handler_data
= 0;
4385 expression (&symexpr
);
4387 if (symexpr
.X_op
!= O_symbol
)
4389 as_fatal (_(".ent directive has no symbol"));
4390 demand_empty_rest_of_line ();
4394 symbol
= make_expr_symbol (&symexpr
);
4395 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
4396 alpha_evax_proc
->symbol
= symbol
;
4398 demand_empty_rest_of_line ();
4402 s_alpha_handler (int is_data
)
4405 alpha_evax_proc
->handler_data
= get_absolute_expression ();
4408 char *name
, name_end
;
4410 name_end
= get_symbol_name (&name
);
4412 if (! is_name_beginner (*name
))
4414 as_warn (_(".handler directive has no name"));
4420 sym
= symbol_find_or_make (name
);
4421 symbol_get_bfdsym (sym
)->flags
|= BSF_FUNCTION
;
4422 alpha_evax_proc
->handler
= sym
;
4425 (void) restore_line_pointer (name_end
);
4428 demand_empty_rest_of_line ();
4431 /* Parse .frame <framreg>,<framesize>,RA,<rsa_offset> directives. */
4434 s_alpha_frame (int ignore ATTRIBUTE_UNUSED
)
4439 alpha_evax_proc
->framereg
= tc_get_register (1);
4442 if (*input_line_pointer
++ != ','
4443 || get_absolute_expression_and_terminator (&val
) != ',')
4445 as_warn (_("Bad .frame directive 1./2. param"));
4446 --input_line_pointer
;
4447 demand_empty_rest_of_line ();
4451 alpha_evax_proc
->framesize
= val
;
4453 ra
= tc_get_register (1);
4454 if (ra
!= AXP_REG_RA
)
4455 as_warn (_("Bad RA (%d) register for .frame"), ra
);
4458 if (*input_line_pointer
++ != ',')
4460 as_warn (_("Bad .frame directive 3./4. param"));
4461 --input_line_pointer
;
4462 demand_empty_rest_of_line ();
4465 alpha_evax_proc
->rsa_offset
= get_absolute_expression ();
4468 /* Parse .prologue. */
4471 s_alpha_prologue (int ignore ATTRIBUTE_UNUSED
)
4473 demand_empty_rest_of_line ();
4474 alpha_prologue_label
= symbol_new
4475 (FAKE_LABEL_NAME
, now_seg
, (valueT
) frag_now_fix (), frag_now
);
4478 /* Parse .pdesc <entry_name>,{null|stack|reg}
4479 Insert a procedure descriptor. */
4482 s_alpha_pdesc (int ignore ATTRIBUTE_UNUSED
)
4489 const char *entry_sym_name
;
4490 const char *pdesc_sym_name
;
4494 if (now_seg
!= alpha_link_section
)
4496 as_bad (_(".pdesc directive not in link (.link) section"));
4501 if (exp
.X_op
!= O_symbol
)
4503 as_bad (_(".pdesc directive has no entry symbol"));
4507 entry_sym
= make_expr_symbol (&exp
);
4508 entry_sym_name
= S_GET_NAME (entry_sym
);
4511 len
= strlen (entry_sym_name
);
4512 if (len
< 4 || strcmp (entry_sym_name
+ len
- 4, "..en") != 0)
4514 as_bad (_(".pdesc has a bad entry symbol"));
4518 pdesc_sym_name
= S_GET_NAME (alpha_evax_proc
->symbol
);
4520 if (!alpha_evax_proc
4521 || !S_IS_DEFINED (alpha_evax_proc
->symbol
)
4522 || strlen (pdesc_sym_name
) != len
4523 || memcmp (entry_sym_name
, pdesc_sym_name
, len
) != 0)
4525 as_fatal (_(".pdesc doesn't match with last .ent"));
4529 /* Define pdesc symbol. */
4530 symbol_set_value_now (alpha_evax_proc
->symbol
);
4532 /* Save bfd symbol of proc entry in function symbol. */
4533 ((struct evax_private_udata_struct
*)
4534 symbol_get_bfdsym (alpha_evax_proc
->symbol
)->udata
.p
)->enbsym
4535 = symbol_get_bfdsym (entry_sym
);
4538 if (*input_line_pointer
++ != ',')
4540 as_warn (_("No comma after .pdesc <entryname>"));
4541 demand_empty_rest_of_line ();
4546 name_end
= get_symbol_name (&name
);
4548 if (strncmp (name
, "stack", 5) == 0)
4549 alpha_evax_proc
->pdsckind
= PDSC_S_K_KIND_FP_STACK
;
4551 else if (strncmp (name
, "reg", 3) == 0)
4552 alpha_evax_proc
->pdsckind
= PDSC_S_K_KIND_FP_REGISTER
;
4554 else if (strncmp (name
, "null", 4) == 0)
4555 alpha_evax_proc
->pdsckind
= PDSC_S_K_KIND_NULL
;
4559 (void) restore_line_pointer (name_end
);
4560 as_fatal (_("unknown procedure kind"));
4561 demand_empty_rest_of_line ();
4565 (void) restore_line_pointer (name_end
);
4566 demand_empty_rest_of_line ();
4568 #ifdef md_flush_pending_output
4569 md_flush_pending_output ();
4572 frag_align (3, 0, 0);
4574 fixp
= fix_new (frag_now
, p
- frag_now
->fr_literal
, 8, 0, 0, 0, 0);
4577 *p
= alpha_evax_proc
->pdsckind
4578 | ((alpha_evax_proc
->framereg
== 29) ? PDSC_S_M_BASE_REG_IS_FP
: 0)
4579 | ((alpha_evax_proc
->handler
) ? PDSC_S_M_HANDLER_VALID
: 0)
4580 | ((alpha_evax_proc
->handler_data
) ? PDSC_S_M_HANDLER_DATA_VALID
: 0);
4581 *(p
+ 1) = PDSC_S_M_NATIVE
| PDSC_S_M_NO_JACKET
;
4583 switch (alpha_evax_proc
->pdsckind
)
4585 case PDSC_S_K_KIND_NULL
:
4589 case PDSC_S_K_KIND_FP_REGISTER
:
4590 *(p
+ 2) = alpha_evax_proc
->fp_save
;
4591 *(p
+ 3) = alpha_evax_proc
->ra_save
;
4593 case PDSC_S_K_KIND_FP_STACK
:
4594 md_number_to_chars (p
+ 2, (valueT
) alpha_evax_proc
->rsa_offset
, 2);
4596 default: /* impossible */
4601 *(p
+ 5) = alpha_evax_proc
->type
& 0x0f;
4603 /* Signature offset. */
4604 md_number_to_chars (p
+ 6, (valueT
) 0, 2);
4606 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ 8,
4607 8, &exp
, 0, BFD_RELOC_64
);
4609 if (alpha_evax_proc
->pdsckind
== PDSC_S_K_KIND_NULL
)
4612 /* pdesc+16: Size. */
4614 md_number_to_chars (p
, (valueT
) alpha_evax_proc
->framesize
, 4);
4615 md_number_to_chars (p
+ 4, (valueT
) 0, 2);
4618 exp
.X_op
= O_subtract
;
4619 exp
.X_add_symbol
= alpha_prologue_label
;
4620 exp
.X_op_symbol
= entry_sym
;
4621 emit_expr (&exp
, 2);
4623 if (alpha_evax_proc
->pdsckind
== PDSC_S_K_KIND_FP_REGISTER
)
4626 /* pdesc+24: register masks. */
4628 md_number_to_chars (p
, alpha_evax_proc
->imask
, 4);
4629 md_number_to_chars (p
+ 4, alpha_evax_proc
->fmask
, 4);
4631 if (alpha_evax_proc
->handler
)
4634 fixp
= fix_new (frag_now
, p
- frag_now
->fr_literal
, 8,
4635 alpha_evax_proc
->handler
, 0, 0, BFD_RELOC_64
);
4638 if (alpha_evax_proc
->handler_data
)
4641 md_number_to_chars (p
, alpha_evax_proc
->handler_data
, 8);
4645 /* Support for crash debug on vms. */
4648 s_alpha_name (int ignore ATTRIBUTE_UNUSED
)
4653 if (now_seg
!= alpha_link_section
)
4655 as_bad (_(".name directive not in link (.link) section"));
4656 demand_empty_rest_of_line ();
4661 if (exp
.X_op
!= O_symbol
)
4663 as_warn (_(".name directive has no symbol"));
4664 demand_empty_rest_of_line ();
4668 demand_empty_rest_of_line ();
4670 #ifdef md_flush_pending_output
4671 md_flush_pending_output ();
4674 frag_align (3, 0, 0);
4677 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, 8, &exp
, 0, BFD_RELOC_64
);
4680 /* Parse .linkage <symbol>.
4681 Create a linkage pair relocation. */
4684 s_alpha_linkage (int ignore ATTRIBUTE_UNUSED
)
4690 #ifdef md_flush_pending_output
4691 md_flush_pending_output ();
4695 if (exp
.X_op
!= O_symbol
)
4697 as_fatal (_("No symbol after .linkage"));
4701 struct alpha_linkage_fixups
*linkage_fixup
;
4703 p
= frag_more (LKP_S_K_SIZE
);
4704 memset (p
, 0, LKP_S_K_SIZE
);
4706 (frag_now
, p
- frag_now
->fr_literal
, LKP_S_K_SIZE
, &exp
, 0,
4707 BFD_RELOC_ALPHA_LINKAGE
);
4709 if (alpha_insn_label
== NULL
)
4710 alpha_insn_label
= symbol_new
4711 (FAKE_LABEL_NAME
, now_seg
, (valueT
) frag_now_fix (), frag_now
);
4713 /* Create a linkage element. */
4714 linkage_fixup
= XNEW (struct alpha_linkage_fixups
);
4715 linkage_fixup
->fixp
= fixp
;
4716 linkage_fixup
->next
= NULL
;
4717 linkage_fixup
->label
= alpha_insn_label
;
4719 /* Append it to the list. */
4720 if (alpha_linkage_fixup_root
== NULL
)
4721 alpha_linkage_fixup_root
= linkage_fixup
;
4723 alpha_linkage_fixup_tail
->next
= linkage_fixup
;
4724 alpha_linkage_fixup_tail
= linkage_fixup
;
4726 demand_empty_rest_of_line ();
4729 /* Parse .code_address <symbol>.
4730 Create a code address relocation. */
4733 s_alpha_code_address (int ignore ATTRIBUTE_UNUSED
)
4738 #ifdef md_flush_pending_output
4739 md_flush_pending_output ();
4743 if (exp
.X_op
!= O_symbol
)
4744 as_fatal (_("No symbol after .code_address"));
4749 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, 8, &exp
, 0,\
4750 BFD_RELOC_ALPHA_CODEADDR
);
4752 demand_empty_rest_of_line ();
4756 s_alpha_fp_save (int ignore ATTRIBUTE_UNUSED
)
4758 alpha_evax_proc
->fp_save
= tc_get_register (1);
4760 demand_empty_rest_of_line ();
4764 s_alpha_mask (int ignore ATTRIBUTE_UNUSED
)
4768 if (get_absolute_expression_and_terminator (&val
) != ',')
4770 as_warn (_("Bad .mask directive"));
4771 --input_line_pointer
;
4775 alpha_evax_proc
->imask
= val
;
4776 (void) get_absolute_expression ();
4778 demand_empty_rest_of_line ();
4782 s_alpha_fmask (int ignore ATTRIBUTE_UNUSED
)
4786 if (get_absolute_expression_and_terminator (&val
) != ',')
4788 as_warn (_("Bad .fmask directive"));
4789 --input_line_pointer
;
4793 alpha_evax_proc
->fmask
= val
;
4794 (void) get_absolute_expression ();
4796 demand_empty_rest_of_line ();
4800 s_alpha_end (int ignore ATTRIBUTE_UNUSED
)
4805 c
= get_symbol_name (&name
);
4806 (void) restore_line_pointer (c
);
4807 demand_empty_rest_of_line ();
4808 alpha_evax_proc
= NULL
;
4812 s_alpha_file (int ignore ATTRIBUTE_UNUSED
)
4816 static char case_hack
[32];
4818 sprintf (case_hack
, "<CASE:%01d%01d>",
4819 alpha_flag_hash_long_names
, alpha_flag_show_after_trunc
);
4821 s
= symbol_find_or_make (case_hack
);
4822 symbol_get_bfdsym (s
)->flags
|= BSF_FILE
;
4824 get_absolute_expression ();
4825 s
= symbol_find_or_make (demand_copy_string (&length
));
4826 symbol_get_bfdsym (s
)->flags
|= BSF_FILE
;
4827 demand_empty_rest_of_line ();
4829 #endif /* OBJ_EVAX */
4831 /* Handle the .gprel32 pseudo op. */
4834 s_alpha_gprel32 (int ignore ATTRIBUTE_UNUSED
)
4846 e
.X_add_symbol
= section_symbol (absolute_section
);
4859 e
.X_add_symbol
= section_symbol (absolute_section
);
4862 e
.X_op
= O_subtract
;
4863 e
.X_op_symbol
= alpha_gp_symbol
;
4871 if (alpha_auto_align_on
&& alpha_current_align
< 2)
4872 alpha_align (2, (char *) NULL
, alpha_insn_label
, 0);
4873 if (alpha_current_align
> 2)
4874 alpha_current_align
= 2;
4875 alpha_insn_label
= NULL
;
4879 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
, 4,
4880 &e
, 0, BFD_RELOC_GPREL32
);
4883 /* Handle floating point allocation pseudo-ops. This is like the
4884 generic vresion, but it makes sure the current label, if any, is
4885 correctly aligned. */
4888 s_alpha_float_cons (int type
)
4914 if (alpha_auto_align_on
&& alpha_current_align
< log_size
)
4915 alpha_align (log_size
, (char *) NULL
, alpha_insn_label
, 0);
4916 if (alpha_current_align
> log_size
)
4917 alpha_current_align
= log_size
;
4918 alpha_insn_label
= NULL
;
4923 /* Handle the .proc pseudo op. We don't really do much with it except
4927 s_alpha_proc (int is_static ATTRIBUTE_UNUSED
)
4935 /* Takes ".proc name,nargs". */
4937 c
= get_symbol_name (&name
);
4938 p
= input_line_pointer
;
4939 symbolP
= symbol_find_or_make (name
);
4941 SKIP_WHITESPACE_AFTER_NAME ();
4942 if (*input_line_pointer
!= ',')
4945 as_warn (_("Expected comma after name \"%s\""), name
);
4948 ignore_rest_of_line ();
4952 input_line_pointer
++;
4953 temp
= get_absolute_expression ();
4955 /* *symbol_get_obj (symbolP) = (signed char) temp; */
4957 as_warn (_("unhandled: .proc %s,%d"), name
, temp
);
4958 demand_empty_rest_of_line ();
4961 /* Handle the .set pseudo op. This is used to turn on and off most of
4962 the assembler features. */
4965 s_alpha_set (int x ATTRIBUTE_UNUSED
)
4972 ch
= get_symbol_name (&name
);
4974 if (s
[0] == 'n' && s
[1] == 'o')
4979 if (!strcmp ("reorder", s
))
4981 else if (!strcmp ("at", s
))
4982 alpha_noat_on
= !yesno
;
4983 else if (!strcmp ("macro", s
))
4984 alpha_macros_on
= yesno
;
4985 else if (!strcmp ("move", s
))
4987 else if (!strcmp ("volatile", s
))
4990 as_warn (_("Tried to .set unrecognized mode `%s'"), name
);
4992 (void) restore_line_pointer (ch
);
4993 demand_empty_rest_of_line ();
4996 /* Handle the .base pseudo op. This changes the assembler's notion of
4997 the $gp register. */
5000 s_alpha_base (int ignore ATTRIBUTE_UNUSED
)
5004 if (*input_line_pointer
== '$')
5007 input_line_pointer
++;
5008 if (*input_line_pointer
== 'r')
5009 input_line_pointer
++;
5012 alpha_gp_register
= get_absolute_expression ();
5013 if (alpha_gp_register
< 0 || alpha_gp_register
> 31)
5015 alpha_gp_register
= AXP_REG_GP
;
5016 as_warn (_("Bad base register, using $%d."), alpha_gp_register
);
5019 demand_empty_rest_of_line ();
5022 /* Handle the .align pseudo-op. This aligns to a power of two. It
5023 also adjusts any current instruction label. We treat this the same
5024 way the MIPS port does: .align 0 turns off auto alignment. */
5027 s_alpha_align (int ignore ATTRIBUTE_UNUSED
)
5031 long max_alignment
= 16;
5033 align
= get_absolute_expression ();
5034 if (align
> max_alignment
)
5036 align
= max_alignment
;
5037 as_bad (_("Alignment too large: %d. assumed"), align
);
5041 as_warn (_("Alignment negative: 0 assumed"));
5045 if (*input_line_pointer
== ',')
5047 input_line_pointer
++;
5048 fill
= get_absolute_expression ();
5056 alpha_auto_align_on
= 1;
5057 alpha_align (align
, pfill
, NULL
, 1);
5061 alpha_auto_align_on
= 0;
5063 alpha_insn_label
= NULL
;
5065 demand_empty_rest_of_line ();
5068 /* Hook the normal string processor to reset known alignment. */
5071 s_alpha_stringer (int terminate
)
5073 alpha_current_align
= 0;
5074 alpha_insn_label
= NULL
;
5075 stringer (8 + terminate
);
5078 /* Hook the normal space processing to reset known alignment. */
5081 s_alpha_space (int ignore
)
5083 alpha_current_align
= 0;
5084 alpha_insn_label
= NULL
;
5088 /* Hook into cons for auto-alignment. */
5091 alpha_cons_align (int size
)
5096 while ((size
>>= 1) != 0)
5099 if (alpha_auto_align_on
&& alpha_current_align
< log_size
)
5100 alpha_align (log_size
, (char *) NULL
, alpha_insn_label
, 0);
5101 if (alpha_current_align
> log_size
)
5102 alpha_current_align
= log_size
;
5103 alpha_insn_label
= NULL
;
5106 /* Here come the .uword, .ulong, and .uquad explicitly unaligned
5107 pseudos. We just turn off auto-alignment and call down to cons. */
5110 s_alpha_ucons (int bytes
)
5112 int hold
= alpha_auto_align_on
;
5113 alpha_auto_align_on
= 0;
5115 alpha_auto_align_on
= hold
;
5118 /* Switch the working cpu type. */
5121 s_alpha_arch (int ignored ATTRIBUTE_UNUSED
)
5124 const struct cpu_type
*p
;
5128 ch
= get_symbol_name (&name
);
5130 for (p
= cpu_types
; p
->name
; ++p
)
5131 if (strcmp (name
, p
->name
) == 0)
5133 alpha_target_name
= p
->name
, alpha_target
= p
->flags
;
5136 as_warn (_("Unknown CPU identifier `%s'"), name
);
5139 (void) restore_line_pointer (ch
);
5140 demand_empty_rest_of_line ();
5144 /* print token expression with alpha specific extension. */
5147 alpha_print_token (FILE *f
, const expressionS
*exp
)
5157 expressionS nexp
= *exp
;
5158 nexp
.X_op
= O_register
;
5159 print_expr_1 (f
, &nexp
);
5164 print_expr_1 (f
, exp
);
5170 /* The target specific pseudo-ops which we support. */
5172 const pseudo_typeS md_pseudo_table
[] =
5175 {"comm", s_alpha_comm
, 0}, /* OSF1 compiler does this. */
5176 {"rdata", s_alpha_rdata
, 0},
5178 {"text", s_alpha_text
, 0},
5179 {"data", s_alpha_data
, 0},
5181 {"sdata", s_alpha_sdata
, 0},
5184 {"section", s_alpha_section
, 0},
5185 {"section.s", s_alpha_section
, 0},
5186 {"sect", s_alpha_section
, 0},
5187 {"sect.s", s_alpha_section
, 0},
5190 {"section", s_alpha_section
, 0},
5191 {"literals", s_alpha_literals
, 0},
5192 {"pdesc", s_alpha_pdesc
, 0},
5193 {"name", s_alpha_name
, 0},
5194 {"linkage", s_alpha_linkage
, 0},
5195 {"code_address", s_alpha_code_address
, 0},
5196 {"ent", s_alpha_ent
, 0},
5197 {"frame", s_alpha_frame
, 0},
5198 {"fp_save", s_alpha_fp_save
, 0},
5199 {"mask", s_alpha_mask
, 0},
5200 {"fmask", s_alpha_fmask
, 0},
5201 {"end", s_alpha_end
, 0},
5202 {"file", s_alpha_file
, 0},
5203 {"rdata", s_alpha_section
, 1},
5204 {"comm", s_alpha_comm
, 0},
5205 {"link", s_alpha_section
, 3},
5206 {"ctors", s_alpha_section
, 4},
5207 {"dtors", s_alpha_section
, 5},
5208 {"handler", s_alpha_handler
, 0},
5209 {"handler_data", s_alpha_handler
, 1},
5212 /* Frame related pseudos. */
5213 {"ent", s_alpha_ent
, 0},
5214 {"end", s_alpha_end
, 0},
5215 {"mask", s_alpha_mask
, 0},
5216 {"fmask", s_alpha_mask
, 1},
5217 {"frame", s_alpha_frame
, 0},
5218 {"prologue", s_alpha_prologue
, 0},
5219 {"file", s_alpha_file
, 5},
5220 {"loc", s_alpha_loc
, 9},
5221 {"stabs", s_alpha_stab
, 's'},
5222 {"stabn", s_alpha_stab
, 'n'},
5223 {"usepv", s_alpha_usepv
, 0},
5224 /* COFF debugging related pseudos. */
5225 {"begin", s_alpha_coff_wrapper
, 0},
5226 {"bend", s_alpha_coff_wrapper
, 1},
5227 {"def", s_alpha_coff_wrapper
, 2},
5228 {"dim", s_alpha_coff_wrapper
, 3},
5229 {"endef", s_alpha_coff_wrapper
, 4},
5230 {"scl", s_alpha_coff_wrapper
, 5},
5231 {"tag", s_alpha_coff_wrapper
, 6},
5232 {"val", s_alpha_coff_wrapper
, 7},
5235 {"prologue", s_alpha_prologue
, 0},
5237 {"prologue", s_ignore
, 0},
5240 {"gprel32", s_alpha_gprel32
, 0},
5241 {"t_floating", s_alpha_float_cons
, 'd'},
5242 {"s_floating", s_alpha_float_cons
, 'f'},
5243 {"f_floating", s_alpha_float_cons
, 'F'},
5244 {"g_floating", s_alpha_float_cons
, 'G'},
5245 {"d_floating", s_alpha_float_cons
, 'D'},
5247 {"proc", s_alpha_proc
, 0},
5248 {"aproc", s_alpha_proc
, 1},
5249 {"set", s_alpha_set
, 0},
5250 {"reguse", s_ignore
, 0},
5251 {"livereg", s_ignore
, 0},
5252 {"base", s_alpha_base
, 0}, /*??*/
5253 {"option", s_ignore
, 0},
5254 {"aent", s_ignore
, 0},
5255 {"ugen", s_ignore
, 0},
5256 {"eflag", s_ignore
, 0},
5258 {"align", s_alpha_align
, 0},
5259 {"double", s_alpha_float_cons
, 'd'},
5260 {"float", s_alpha_float_cons
, 'f'},
5261 {"single", s_alpha_float_cons
, 'f'},
5262 {"ascii", s_alpha_stringer
, 0},
5263 {"asciz", s_alpha_stringer
, 1},
5264 {"string", s_alpha_stringer
, 1},
5265 {"space", s_alpha_space
, 0},
5266 {"skip", s_alpha_space
, 0},
5267 {"zero", s_alpha_space
, 0},
5269 /* Unaligned data pseudos. */
5270 {"uword", s_alpha_ucons
, 2},
5271 {"ulong", s_alpha_ucons
, 4},
5272 {"uquad", s_alpha_ucons
, 8},
5275 /* Dwarf wants these versions of unaligned. */
5276 {"2byte", s_alpha_ucons
, 2},
5277 {"4byte", s_alpha_ucons
, 4},
5278 {"8byte", s_alpha_ucons
, 8},
5281 /* We don't do any optimizing, so we can safely ignore these. */
5282 {"noalias", s_ignore
, 0},
5283 {"alias", s_ignore
, 0},
5285 {"arch", s_alpha_arch
, 0},
5292 /* @@@ GP selection voodoo. All of this seems overly complicated and
5293 unnecessary; which is the primary reason it's for ECOFF only. */
5296 maybe_set_gp (asection
*sec
)
5302 vma
= bfd_get_section_vma (sec
->owner
, sec
);
5303 if (vma
&& vma
< alpha_gp_value
)
5304 alpha_gp_value
= vma
;
5308 select_gp_value (void)
5310 gas_assert (alpha_gp_value
== 0);
5312 /* Get minus-one in whatever width... */
5316 /* Select the smallest VMA of these existing sections. */
5317 maybe_set_gp (alpha_lita_section
);
5319 /* @@ Will a simple 0x8000 work here? If not, why not? */
5320 #define GP_ADJUSTMENT (0x8000 - 0x10)
5322 alpha_gp_value
+= GP_ADJUSTMENT
;
5324 S_SET_VALUE (alpha_gp_symbol
, alpha_gp_value
);
5327 printf (_("Chose GP value of %lx\n"), alpha_gp_value
);
5330 #endif /* OBJ_ECOFF */
5333 /* Map 's' to SHF_ALPHA_GPREL. */
5336 alpha_elf_section_letter (int letter
, const char **ptr_msg
)
5339 return SHF_ALPHA_GPREL
;
5341 *ptr_msg
= _("bad .section directive: want a,s,w,x,M,S,G,T in string");
5345 /* Map SHF_ALPHA_GPREL to SEC_SMALL_DATA. */
5348 alpha_elf_section_flags (flagword flags
, bfd_vma attr
, int type ATTRIBUTE_UNUSED
)
5350 if (attr
& SHF_ALPHA_GPREL
)
5351 flags
|= SEC_SMALL_DATA
;
5354 #endif /* OBJ_ELF */
5356 /* This is called from HANDLE_ALIGN in write.c. Fill in the contents
5357 of an rs_align_code fragment. */
5360 alpha_handle_align (fragS
*fragp
)
5362 static unsigned char const unop
[4] = { 0x00, 0x00, 0xfe, 0x2f };
5363 static unsigned char const nopunop
[8] =
5365 0x1f, 0x04, 0xff, 0x47,
5366 0x00, 0x00, 0xfe, 0x2f
5372 if (fragp
->fr_type
!= rs_align_code
)
5375 bytes
= fragp
->fr_next
->fr_address
- fragp
->fr_address
- fragp
->fr_fix
;
5376 p
= fragp
->fr_literal
+ fragp
->fr_fix
;
5389 memcpy (p
, unop
, 4);
5395 memcpy (p
, nopunop
, 8);
5397 fragp
->fr_fix
+= fix
;
5401 /* Public interface functions. */
5403 /* This function is called once, at assembler startup time. It sets
5404 up all the tables, etc. that the MD part of the assembler will
5405 need, that can be determined before arguments are parsed. */
5412 /* Verify that X_op field is wide enough. */
5417 gas_assert (e
.X_op
== O_max
);
5420 /* Create the opcode hash table. */
5421 alpha_opcode_hash
= hash_new ();
5423 for (i
= 0; i
< alpha_num_opcodes
;)
5425 const char *name
, *retval
, *slash
;
5427 name
= alpha_opcodes
[i
].name
;
5428 retval
= hash_insert (alpha_opcode_hash
, name
, (void *) &alpha_opcodes
[i
]);
5430 as_fatal (_("internal error: can't hash opcode `%s': %s"),
5433 /* Some opcodes include modifiers of various sorts with a "/mod"
5434 syntax, like the architecture manual suggests. However, for
5435 use with gcc at least, we also need access to those same opcodes
5438 if ((slash
= strchr (name
, '/')) != NULL
)
5440 char *p
= XNEWVEC (char, strlen (name
));
5442 memcpy (p
, name
, slash
- name
);
5443 strcpy (p
+ (slash
- name
), slash
+ 1);
5445 (void) hash_insert (alpha_opcode_hash
, p
, (void *) &alpha_opcodes
[i
]);
5446 /* Ignore failures -- the opcode table does duplicate some
5447 variants in different forms, like "hw_stq" and "hw_st/q". */
5450 while (++i
< alpha_num_opcodes
5451 && (alpha_opcodes
[i
].name
== name
5452 || !strcmp (alpha_opcodes
[i
].name
, name
)))
5456 /* Create the macro hash table. */
5457 alpha_macro_hash
= hash_new ();
5459 for (i
= 0; i
< alpha_num_macros
;)
5461 const char *name
, *retval
;
5463 name
= alpha_macros
[i
].name
;
5464 retval
= hash_insert (alpha_macro_hash
, name
, (void *) &alpha_macros
[i
]);
5466 as_fatal (_("internal error: can't hash macro `%s': %s"),
5469 while (++i
< alpha_num_macros
5470 && (alpha_macros
[i
].name
== name
5471 || !strcmp (alpha_macros
[i
].name
, name
)))
5475 /* Construct symbols for each of the registers. */
5476 for (i
= 0; i
< 32; ++i
)
5480 sprintf (name
, "$%d", i
);
5481 alpha_register_table
[i
] = symbol_create (name
, reg_section
, i
,
5482 &zero_address_frag
);
5489 sprintf (name
, "$f%d", i
- 32);
5490 alpha_register_table
[i
] = symbol_create (name
, reg_section
, i
,
5491 &zero_address_frag
);
5494 /* Create the special symbols and sections we'll be using. */
5496 /* So .sbss will get used for tiny objects. */
5497 bfd_set_gp_size (stdoutput
, g_switch_value
);
5500 create_literal_section (".lita", &alpha_lita_section
, &alpha_lita_symbol
);
5502 /* For handling the GP, create a symbol that won't be output in the
5503 symbol table. We'll edit it out of relocs later. */
5504 alpha_gp_symbol
= symbol_create ("<GP value>", alpha_lita_section
, 0x8000,
5505 &zero_address_frag
);
5509 create_literal_section (".link", &alpha_link_section
, &alpha_link_symbol
);
5513 if (ECOFF_DEBUGGING
)
5515 segT sec
= subseg_new (".mdebug", (subsegT
) 0);
5516 bfd_set_section_flags (stdoutput
, sec
, SEC_HAS_CONTENTS
| SEC_READONLY
);
5517 bfd_set_section_alignment (stdoutput
, sec
, 3);
5521 /* Create literal lookup hash table. */
5522 alpha_literal_hash
= hash_new ();
5524 subseg_set (text_section
, 0);
5527 /* The public interface to the instruction assembler. */
5530 md_assemble (char *str
)
5532 /* Current maximum is 13. */
5534 expressionS tok
[MAX_INSN_ARGS
];
5538 /* Split off the opcode. */
5539 opnamelen
= strspn (str
, "abcdefghijklmnopqrstuvwxyz_/46819");
5540 trunclen
= (opnamelen
< sizeof (opname
) - 1
5542 : sizeof (opname
) - 1);
5543 memcpy (opname
, str
, trunclen
);
5544 opname
[trunclen
] = '\0';
5546 /* Tokenize the rest of the line. */
5547 if ((ntok
= tokenize_arguments (str
+ opnamelen
, tok
, MAX_INSN_ARGS
)) < 0)
5549 if (ntok
!= TOKENIZE_ERROR_REPORT
)
5550 as_bad (_("syntax error"));
5555 /* Finish it off. */
5556 assemble_tokens (opname
, tok
, ntok
, alpha_macros_on
);
5559 /* Round up a section's size to the appropriate boundary. */
5562 md_section_align (segT seg
, valueT size
)
5564 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5565 valueT mask
= ((valueT
) 1 << align
) - 1;
5567 return (size
+ mask
) & ~mask
;
5570 /* Turn a string in input_line_pointer into a floating point constant
5571 of type TYPE, and store the appropriate bytes in *LITP. The number
5572 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5573 returned, or NULL on OK. */
5576 md_atof (int type
, char *litP
, int *sizeP
)
5578 extern const char *vax_md_atof (int, char *, int *);
5584 /* vax_md_atof() doesn't like "G" for some reason. */
5588 return vax_md_atof (type
, litP
, sizeP
);
5591 return ieee_md_atof (type
, litP
, sizeP
, FALSE
);
5595 /* Take care of the target-specific command-line options. */
5598 md_parse_option (int c
, const char *arg
)
5603 alpha_nofloats_on
= 1;
5607 alpha_addr32_on
= 1;
5615 g_switch_value
= atoi (arg
);
5620 const struct cpu_type
*p
;
5622 for (p
= cpu_types
; p
->name
; ++p
)
5623 if (strcmp (arg
, p
->name
) == 0)
5625 alpha_target_name
= p
->name
, alpha_target
= p
->flags
;
5628 as_warn (_("Unknown CPU identifier `%s'"), arg
);
5634 case '+': /* For g++. Hash any name > 63 chars long. */
5635 alpha_flag_hash_long_names
= 1;
5638 case 'H': /* Show new symbol after hash truncation. */
5639 alpha_flag_show_after_trunc
= 1;
5642 case 'h': /* For gnu-c/vax compatibility. */
5645 case OPTION_REPLACE
:
5646 alpha_flag_replace
= 1;
5649 case OPTION_NOREPLACE
:
5650 alpha_flag_replace
= 0;
5655 alpha_flag_relax
= 1;
5660 alpha_flag_mdebug
= 1;
5662 case OPTION_NO_MDEBUG
:
5663 alpha_flag_mdebug
= 0;
5674 /* Print a description of the command-line options that we accept. */
5677 md_show_usage (FILE *stream
)
5681 -32addr treat addresses as 32-bit values\n\
5682 -F lack floating point instructions support\n\
5683 -mev4 | -mev45 | -mev5 | -mev56 | -mpca56 | -mev6 | -mev67 | -mev68 | -mall\n\
5684 specify variant of Alpha architecture\n\
5685 -m21064 | -m21066 | -m21164 | -m21164a | -m21164pc | -m21264 | -m21264a | -m21264b\n\
5686 these variants include PALcode opcodes\n"),
5691 -+ encode (don't truncate) names longer than 64 characters\n\
5692 -H show new symbol after hash truncation\n\
5693 -replace/-noreplace enable or disable the optimization of procedure calls\n"),
5698 /* Decide from what point a pc-relative relocation is relative to,
5699 relative to the pc-relative fixup. Er, relatively speaking. */
5702 md_pcrel_from (fixS
*fixP
)
5704 valueT addr
= fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
5706 switch (fixP
->fx_r_type
)
5708 case BFD_RELOC_23_PCREL_S2
:
5709 case BFD_RELOC_ALPHA_HINT
:
5710 case BFD_RELOC_ALPHA_BRSGP
:
5717 /* Attempt to simplify or even eliminate a fixup. The return value is
5718 ignored; perhaps it was once meaningful, but now it is historical.
5719 To indicate that a fixup has been eliminated, set fixP->fx_done.
5721 For ELF, here it is that we transform the GPDISP_HI16 reloc we used
5722 internally into the GPDISP reloc used externally. We had to do
5723 this so that we'd have the GPDISP_LO16 reloc as a tag to compute
5724 the distance to the "lda" instruction for setting the addend to
5728 md_apply_fix (fixS
*fixP
, valueT
* valP
, segT seg
)
5730 char * const fixpos
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5731 valueT value
= * valP
;
5732 unsigned image
, size
;
5734 switch (fixP
->fx_r_type
)
5736 /* The GPDISP relocations are processed internally with a symbol
5737 referring to the current function's section; we need to drop
5738 in a value which, when added to the address of the start of
5739 the function, gives the desired GP. */
5740 case BFD_RELOC_ALPHA_GPDISP_HI16
:
5742 fixS
*next
= fixP
->fx_next
;
5744 /* With user-specified !gpdisp relocations, we can be missing
5745 the matching LO16 reloc. We will have already issued an
5748 fixP
->fx_offset
= (next
->fx_frag
->fr_address
+ next
->fx_where
5749 - fixP
->fx_frag
->fr_address
- fixP
->fx_where
);
5751 value
= (value
- sign_extend_16 (value
)) >> 16;
5754 fixP
->fx_r_type
= BFD_RELOC_ALPHA_GPDISP
;
5758 case BFD_RELOC_ALPHA_GPDISP_LO16
:
5759 value
= sign_extend_16 (value
);
5760 fixP
->fx_offset
= 0;
5766 fixP
->fx_addsy
= section_symbol (seg
);
5767 md_number_to_chars (fixpos
, value
, 2);
5772 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
5778 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5784 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5788 if (fixP
->fx_pcrel
== 0 && fixP
->fx_addsy
== 0)
5790 md_number_to_chars (fixpos
, value
, size
);
5796 case BFD_RELOC_GPREL32
:
5797 gas_assert (fixP
->fx_subsy
== alpha_gp_symbol
);
5799 /* FIXME: inherited this obliviousness of `value' -- why? */
5800 md_number_to_chars (fixpos
, -alpha_gp_value
, 4);
5803 case BFD_RELOC_GPREL32
:
5805 case BFD_RELOC_GPREL16
:
5806 case BFD_RELOC_ALPHA_GPREL_HI16
:
5807 case BFD_RELOC_ALPHA_GPREL_LO16
:
5810 case BFD_RELOC_23_PCREL_S2
:
5811 if (fixP
->fx_pcrel
== 0 && fixP
->fx_addsy
== 0)
5813 image
= bfd_getl32 (fixpos
);
5814 image
= (image
& ~0x1FFFFF) | ((value
>> 2) & 0x1FFFFF);
5819 case BFD_RELOC_ALPHA_HINT
:
5820 if (fixP
->fx_pcrel
== 0 && fixP
->fx_addsy
== 0)
5822 image
= bfd_getl32 (fixpos
);
5823 image
= (image
& ~0x3FFF) | ((value
>> 2) & 0x3FFF);
5829 case BFD_RELOC_ALPHA_BRSGP
:
5832 case BFD_RELOC_ALPHA_TLSGD
:
5833 case BFD_RELOC_ALPHA_TLSLDM
:
5834 case BFD_RELOC_ALPHA_GOTDTPREL16
:
5835 case BFD_RELOC_ALPHA_DTPREL_HI16
:
5836 case BFD_RELOC_ALPHA_DTPREL_LO16
:
5837 case BFD_RELOC_ALPHA_DTPREL16
:
5838 case BFD_RELOC_ALPHA_GOTTPREL16
:
5839 case BFD_RELOC_ALPHA_TPREL_HI16
:
5840 case BFD_RELOC_ALPHA_TPREL_LO16
:
5841 case BFD_RELOC_ALPHA_TPREL16
:
5843 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
5848 case BFD_RELOC_ALPHA_LITERAL
:
5849 md_number_to_chars (fixpos
, value
, 2);
5852 case BFD_RELOC_ALPHA_ELF_LITERAL
:
5853 case BFD_RELOC_ALPHA_LITUSE
:
5854 case BFD_RELOC_ALPHA_LINKAGE
:
5855 case BFD_RELOC_ALPHA_CODEADDR
:
5859 case BFD_RELOC_ALPHA_NOP
:
5860 value
-= (8 + 4); /* PC-relative, base is jsr+4. */
5862 /* From B.4.5.2 of the OpenVMS Linker Utility Manual:
5863 "Finally, the ETIR$C_STC_BSR command passes the same address
5864 as ETIR$C_STC_NOP (so that they will fail or succeed together),
5865 and the same test is done again." */
5866 if (S_GET_SEGMENT (fixP
->fx_addsy
) == undefined_section
)
5868 fixP
->fx_addnumber
= -value
;
5872 if ((abs (value
) >> 2) & ~0xfffff)
5876 /* Change to a nop. */
5881 case BFD_RELOC_ALPHA_LDA
:
5882 /* fixup_segment sets fixP->fx_addsy to NULL when it can pre-compute
5883 the value for an O_subtract. */
5885 && S_GET_SEGMENT (fixP
->fx_addsy
) == undefined_section
)
5887 fixP
->fx_addnumber
= symbol_get_bfdsym (fixP
->fx_subsy
)->value
;
5891 if ((abs (value
)) & ~0x7fff)
5895 /* Change to an lda. */
5896 image
= 0x237B0000 | (value
& 0xFFFF);
5900 case BFD_RELOC_ALPHA_BSR
:
5901 case BFD_RELOC_ALPHA_BOH
:
5902 value
-= 4; /* PC-relative, base is jsr+4. */
5904 /* See comment in the BFD_RELOC_ALPHA_NOP case above. */
5905 if (S_GET_SEGMENT (fixP
->fx_addsy
) == undefined_section
)
5907 fixP
->fx_addnumber
= -value
;
5911 if ((abs (value
) >> 2) & ~0xfffff)
5914 if (fixP
->fx_r_type
== BFD_RELOC_ALPHA_BOH
)
5917 image
= bfd_getl32(fixpos
);
5918 image
= (image
& ~0x3FFF) | ((value
>> 2) & 0x3FFF);
5925 /* Change to a branch. */
5926 image
= 0xD3400000 | ((value
>> 2) & 0x1FFFFF);
5931 case BFD_RELOC_VTABLE_INHERIT
:
5932 case BFD_RELOC_VTABLE_ENTRY
:
5937 const struct alpha_operand
*operand
;
5939 if ((int) fixP
->fx_r_type
>= 0)
5940 as_fatal (_("unhandled relocation type %s"),
5941 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5943 gas_assert (-(int) fixP
->fx_r_type
< (int) alpha_num_operands
);
5944 operand
= &alpha_operands
[-(int) fixP
->fx_r_type
];
5946 /* The rest of these fixups only exist internally during symbol
5947 resolution and have no representation in the object file.
5948 Therefore they must be completely resolved as constants. */
5950 if (fixP
->fx_addsy
!= 0
5951 && S_GET_SEGMENT (fixP
->fx_addsy
) != absolute_section
)
5952 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5953 _("non-absolute expression in constant field"));
5955 image
= bfd_getl32 (fixpos
);
5956 image
= insert_operand (image
, operand
, (offsetT
) value
,
5957 fixP
->fx_file
, fixP
->fx_line
);
5962 if (fixP
->fx_addsy
!= 0 || fixP
->fx_pcrel
!= 0)
5966 as_warn_where (fixP
->fx_file
, fixP
->fx_line
,
5967 _("type %d reloc done?\n"), (int) fixP
->fx_r_type
);
5972 md_number_to_chars (fixpos
, image
, 4);
5978 /* Look for a register name in the given symbol. */
5981 md_undefined_symbol (char *name
)
5985 int is_float
= 0, num
;
5990 if (name
[1] == 'p' && name
[2] == '\0')
5991 return alpha_register_table
[AXP_REG_FP
];
5996 if (!ISDIGIT (*++name
))
6000 case '0': case '1': case '2': case '3': case '4':
6001 case '5': case '6': case '7': case '8': case '9':
6002 if (name
[1] == '\0')
6003 num
= name
[0] - '0';
6004 else if (name
[0] != '0' && ISDIGIT (name
[1]) && name
[2] == '\0')
6006 num
= (name
[0] - '0') * 10 + name
[1] - '0';
6013 if (!alpha_noat_on
&& (num
+ is_float
) == AXP_REG_AT
)
6014 as_warn (_("Used $at without \".set noat\""));
6015 return alpha_register_table
[num
+ is_float
];
6018 if (name
[1] == 't' && name
[2] == '\0')
6021 as_warn (_("Used $at without \".set noat\""));
6022 return alpha_register_table
[AXP_REG_AT
];
6027 if (name
[1] == 'p' && name
[2] == '\0')
6028 return alpha_register_table
[alpha_gp_register
];
6032 if (name
[1] == 'p' && name
[2] == '\0')
6033 return alpha_register_table
[AXP_REG_SP
];
6041 /* @@@ Magic ECOFF bits. */
6044 alpha_frob_ecoff_data (void)
6047 /* $zero and $f31 are read-only. */
6048 alpha_gprmask
&= ~1;
6049 alpha_fprmask
&= ~1;
6053 /* Hook to remember a recently defined label so that the auto-align
6054 code can adjust the symbol after we know what alignment will be
6058 alpha_define_label (symbolS
*sym
)
6060 alpha_insn_label
= sym
;
6062 dwarf2_emit_label (sym
);
6066 /* Return true if we must always emit a reloc for a type and false if
6067 there is some hope of resolving it at assembly time. */
6070 alpha_force_relocation (fixS
*f
)
6072 if (alpha_flag_relax
)
6075 switch (f
->fx_r_type
)
6077 case BFD_RELOC_ALPHA_GPDISP_HI16
:
6078 case BFD_RELOC_ALPHA_GPDISP_LO16
:
6079 case BFD_RELOC_ALPHA_GPDISP
:
6080 case BFD_RELOC_ALPHA_LITERAL
:
6081 case BFD_RELOC_ALPHA_ELF_LITERAL
:
6082 case BFD_RELOC_ALPHA_LITUSE
:
6083 case BFD_RELOC_GPREL16
:
6084 case BFD_RELOC_GPREL32
:
6085 case BFD_RELOC_ALPHA_GPREL_HI16
:
6086 case BFD_RELOC_ALPHA_GPREL_LO16
:
6087 case BFD_RELOC_ALPHA_LINKAGE
:
6088 case BFD_RELOC_ALPHA_CODEADDR
:
6089 case BFD_RELOC_ALPHA_BRSGP
:
6090 case BFD_RELOC_ALPHA_TLSGD
:
6091 case BFD_RELOC_ALPHA_TLSLDM
:
6092 case BFD_RELOC_ALPHA_GOTDTPREL16
:
6093 case BFD_RELOC_ALPHA_DTPREL_HI16
:
6094 case BFD_RELOC_ALPHA_DTPREL_LO16
:
6095 case BFD_RELOC_ALPHA_DTPREL16
:
6096 case BFD_RELOC_ALPHA_GOTTPREL16
:
6097 case BFD_RELOC_ALPHA_TPREL_HI16
:
6098 case BFD_RELOC_ALPHA_TPREL_LO16
:
6099 case BFD_RELOC_ALPHA_TPREL16
:
6101 case BFD_RELOC_ALPHA_NOP
:
6102 case BFD_RELOC_ALPHA_BSR
:
6103 case BFD_RELOC_ALPHA_LDA
:
6104 case BFD_RELOC_ALPHA_BOH
:
6112 return generic_force_reloc (f
);
6115 /* Return true if we can partially resolve a relocation now. */
6118 alpha_fix_adjustable (fixS
*f
)
6120 /* Are there any relocation types for which we must generate a
6121 reloc but we can adjust the values contained within it? */
6122 switch (f
->fx_r_type
)
6124 case BFD_RELOC_ALPHA_GPDISP_HI16
:
6125 case BFD_RELOC_ALPHA_GPDISP_LO16
:
6126 case BFD_RELOC_ALPHA_GPDISP
:
6129 case BFD_RELOC_ALPHA_LITERAL
:
6130 case BFD_RELOC_ALPHA_ELF_LITERAL
:
6131 case BFD_RELOC_ALPHA_LITUSE
:
6132 case BFD_RELOC_ALPHA_LINKAGE
:
6133 case BFD_RELOC_ALPHA_CODEADDR
:
6136 case BFD_RELOC_VTABLE_ENTRY
:
6137 case BFD_RELOC_VTABLE_INHERIT
:
6140 case BFD_RELOC_GPREL16
:
6141 case BFD_RELOC_GPREL32
:
6142 case BFD_RELOC_ALPHA_GPREL_HI16
:
6143 case BFD_RELOC_ALPHA_GPREL_LO16
:
6144 case BFD_RELOC_23_PCREL_S2
:
6148 case BFD_RELOC_ALPHA_HINT
:
6151 case BFD_RELOC_ALPHA_TLSGD
:
6152 case BFD_RELOC_ALPHA_TLSLDM
:
6153 case BFD_RELOC_ALPHA_GOTDTPREL16
:
6154 case BFD_RELOC_ALPHA_DTPREL_HI16
:
6155 case BFD_RELOC_ALPHA_DTPREL_LO16
:
6156 case BFD_RELOC_ALPHA_DTPREL16
:
6157 case BFD_RELOC_ALPHA_GOTTPREL16
:
6158 case BFD_RELOC_ALPHA_TPREL_HI16
:
6159 case BFD_RELOC_ALPHA_TPREL_LO16
:
6160 case BFD_RELOC_ALPHA_TPREL16
:
6161 /* ??? No idea why we can't return a reference to .tbss+10, but
6162 we're preventing this in the other assemblers. Follow for now. */
6166 case BFD_RELOC_ALPHA_BRSGP
:
6167 /* If we have a BRSGP reloc to a local symbol, adjust it to BRADDR and
6168 let it get resolved at assembly time. */
6170 symbolS
*sym
= f
->fx_addsy
;
6174 if (generic_force_reloc (f
))
6177 switch (S_GET_OTHER (sym
) & STO_ALPHA_STD_GPLOAD
)
6179 case STO_ALPHA_NOPV
:
6181 case STO_ALPHA_STD_GPLOAD
:
6185 if (S_IS_LOCAL (sym
))
6188 name
= S_GET_NAME (sym
);
6189 as_bad_where (f
->fx_file
, f
->fx_line
,
6190 _("!samegp reloc against symbol without .prologue: %s"),
6194 f
->fx_r_type
= BFD_RELOC_23_PCREL_S2
;
6195 f
->fx_offset
+= offset
;
6200 case BFD_RELOC_ALPHA_NOP
:
6201 case BFD_RELOC_ALPHA_BSR
:
6202 case BFD_RELOC_ALPHA_LDA
:
6203 case BFD_RELOC_ALPHA_BOH
:
6212 /* Generate the BFD reloc to be stuck in the object file from the
6213 fixup used internally in the assembler. */
6216 tc_gen_reloc (asection
*sec ATTRIBUTE_UNUSED
,
6221 reloc
= XNEW (arelent
);
6222 reloc
->sym_ptr_ptr
= XNEW (asymbol
*);
6223 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6224 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6226 /* Make sure none of our internal relocations make it this far.
6227 They'd better have been fully resolved by this point. */
6228 gas_assert ((int) fixp
->fx_r_type
> 0);
6230 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6231 if (reloc
->howto
== NULL
)
6233 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6234 _("cannot represent `%s' relocation in object file"),
6235 bfd_get_reloc_code_name (fixp
->fx_r_type
));
6239 if (!fixp
->fx_pcrel
!= !reloc
->howto
->pc_relative
)
6240 as_fatal (_("internal error? cannot generate `%s' relocation"),
6241 bfd_get_reloc_code_name (fixp
->fx_r_type
));
6243 gas_assert (!fixp
->fx_pcrel
== !reloc
->howto
->pc_relative
);
6245 reloc
->addend
= fixp
->fx_offset
;
6248 /* Fake out bfd_perform_relocation. sigh. */
6249 /* ??? Better would be to use the special_function hook. */
6250 if (fixp
->fx_r_type
== BFD_RELOC_ALPHA_LITERAL
)
6251 reloc
->addend
= -alpha_gp_value
;
6255 switch (fixp
->fx_r_type
)
6257 struct evax_private_udata_struct
*udata
;
6261 case BFD_RELOC_ALPHA_LINKAGE
:
6262 /* Copy the linkage index. */
6263 reloc
->addend
= fixp
->fx_addnumber
;
6266 case BFD_RELOC_ALPHA_NOP
:
6267 case BFD_RELOC_ALPHA_BSR
:
6268 case BFD_RELOC_ALPHA_LDA
:
6269 case BFD_RELOC_ALPHA_BOH
:
6270 pname
= symbol_get_bfdsym (fixp
->fx_addsy
)->name
;
6272 /* We need the non-suffixed name of the procedure. Beware that
6273 the main symbol might be equated so look it up and take its name. */
6274 pname_len
= strlen (pname
);
6275 if (pname_len
> 4 && strcmp (pname
+ pname_len
- 4, "..en") == 0)
6278 char *my_pname
= xmemdup0 (pname
, pname_len
- 4);
6279 sym
= symbol_find (my_pname
);
6284 while (symbol_equated_reloc_p (sym
))
6286 symbolS
*n
= symbol_get_value_expression (sym
)->X_add_symbol
;
6288 /* We must avoid looping, as that can occur with a badly
6294 pname
= symbol_get_bfdsym (sym
)->name
;
6297 udata
= XNEW (struct evax_private_udata_struct
);
6298 udata
->enbsym
= symbol_get_bfdsym (fixp
->fx_addsy
);
6299 udata
->bsym
= symbol_get_bfdsym (fixp
->tc_fix_data
.info
->psym
);
6300 udata
->origname
= (char *)pname
;
6301 udata
->lkindex
= ((struct evax_private_udata_struct
*)
6302 symbol_get_bfdsym (fixp
->tc_fix_data
.info
->sym
)->udata
.p
)->lkindex
;
6303 reloc
->sym_ptr_ptr
= (void *)udata
;
6304 reloc
->addend
= fixp
->fx_addnumber
;
6314 /* Parse a register name off of the input_line and return a register
6315 number. Gets md_undefined_symbol above to do the register name
6318 Only called as a part of processing the ECOFF .frame directive. */
6321 tc_get_register (int frame ATTRIBUTE_UNUSED
)
6323 int framereg
= AXP_REG_SP
;
6326 if (*input_line_pointer
== '$')
6329 char c
= get_symbol_name (&s
);
6330 symbolS
*sym
= md_undefined_symbol (s
);
6332 *strchr (s
, '\0') = c
;
6333 if (sym
&& (framereg
= S_GET_VALUE (sym
)) <= 31)
6336 as_warn (_("frame reg expected, using $%d."), framereg
);
6339 note_gpreg (framereg
);
6343 /* This is called before the symbol table is processed. In order to
6344 work with gcc when using mips-tfile, we must keep all local labels.
6345 However, in other cases, we want to discard them. If we were
6346 called with -g, but we didn't see any debugging information, it may
6347 mean that gcc is smuggling debugging information through to
6348 mips-tfile, in which case we must generate all local labels. */
6353 alpha_frob_file_before_adjust (void)
6355 if (alpha_debug
!= 0
6356 && ! ecoff_debugging_seen
)
6357 flag_keep_locals
= 1;
6360 #endif /* OBJ_ECOFF */
6362 /* The Alpha has support for some VAX floating point types, as well as for
6363 IEEE floating point. We consider IEEE to be the primary floating point
6364 format, and sneak in the VAX floating point support here. */
6365 #include "config/atof-vax.c"