1 /* tc-hppa.c -- Assemble for the PA
2 Copyright (C) 1989, 93, 94, 95, 96, 97, 98, 1999
3 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 /* HP PA-RISC support was contributed by the Center for Software Science
24 at the University of Utah. */
32 #include "bfd/libhppa.h"
33 #include "bfd/libbfd.h"
35 /* Be careful, this file includes data *declarations*. */
36 #include "opcode/hppa.h"
38 #if defined (OBJ_ELF) && defined (OBJ_SOM)
39 error only one of OBJ_ELF
and OBJ_SOM can be defined
42 /* A "convient" place to put object file dependencies which do
43 not need to be seen outside of tc-hppa.c. */
45 /* Object file formats specify relocation types. */
46 typedef elf_hppa_reloc_type reloc_type
;
48 /* Object file formats specify BFD symbol types. */
49 typedef elf_symbol_type obj_symbol_type
;
52 /* How to generate a relocation. */
53 #define hppa_gen_reloc_type _bfd_elf64_hppa_gen_reloc_type
55 #define hppa_gen_reloc_type _bfd_elf32_hppa_gen_reloc_type
58 /* ELF objects can have versions, but apparently do not have anywhere
59 to store a copyright string. */
60 #define obj_version obj_elf_version
61 #define obj_copyright obj_elf_version
65 /* Names of various debugging spaces/subspaces. */
66 #define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
67 #define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
68 #define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
69 #define UNWIND_SECTION_NAME "$UNWIND$"
71 /* Object file formats specify relocation types. */
72 typedef int reloc_type
;
74 /* SOM objects can have both a version string and a copyright string. */
75 #define obj_version obj_som_version
76 #define obj_copyright obj_som_copyright
78 /* How to generate a relocation. */
79 #define hppa_gen_reloc_type hppa_som_gen_reloc_type
81 /* Object file formats specify BFD symbol types. */
82 typedef som_symbol_type obj_symbol_type
;
84 /* This apparently isn't in older versions of hpux reloc.h. */
86 #define R_DLT_REL 0x78
98 /* Various structures and types used internally in tc-hppa.c. */
100 /* Unwind table and descriptor. FIXME: Sync this with GDB version. */
104 unsigned int cannot_unwind
:1;
105 unsigned int millicode
:1;
106 unsigned int millicode_save_rest
:1;
107 unsigned int region_desc
:2;
108 unsigned int save_sr
:2;
109 unsigned int entry_fr
:4;
110 unsigned int entry_gr
:5;
111 unsigned int args_stored
:1;
112 unsigned int call_fr
:5;
113 unsigned int call_gr
:5;
114 unsigned int save_sp
:1;
115 unsigned int save_rp
:1;
116 unsigned int save_rp_in_frame
:1;
117 unsigned int extn_ptr_defined
:1;
118 unsigned int cleanup_defined
:1;
120 unsigned int hpe_interrupt_marker
:1;
121 unsigned int hpux_interrupt_marker
:1;
122 unsigned int reserved
:3;
123 unsigned int frame_size
:27;
128 /* Starting and ending offsets of the region described by
130 unsigned int start_offset
;
131 unsigned int end_offset
;
132 struct unwind_desc descriptor
;
135 /* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
136 control the entry and exit code they generate. It is also used in
137 creation of the correct stack unwind descriptors.
139 NOTE: GAS does not support .enter and .leave for the generation of
140 prologues and epilogues. FIXME.
142 The fields in structure roughly correspond to the arguments available on the
143 .callinfo pseudo-op. */
147 /* The unwind descriptor being built. */
148 struct unwind_table ci_unwind
;
150 /* Name of this function. */
151 symbolS
*start_symbol
;
153 /* (temporary) symbol used to mark the end of this function. */
156 /* Next entry in the chain. */
157 struct call_info
*ci_next
;
160 /* Operand formats for FP instructions. Note not all FP instructions
161 allow all four formats to be used (for example fmpysub only allows
165 SGL
, DBL
, ILLEGAL_FMT
, QUAD
, W
, UW
, DW
, UDW
, QW
, UQW
169 /* This fully describes the symbol types which may be attached to
170 an EXPORT or IMPORT directive. Only SOM uses this formation
171 (ELF has no need for it). */
175 SYMBOL_TYPE_ABSOLUTE
,
179 SYMBOL_TYPE_MILLICODE
,
181 SYMBOL_TYPE_PRI_PROG
,
182 SYMBOL_TYPE_SEC_PROG
,
186 /* This structure contains information needed to assemble
187 individual instructions. */
190 /* Holds the opcode after parsing by pa_ip. */
191 unsigned long opcode
;
193 /* Holds an expression associated with the current instruction. */
196 /* Does this instruction use PC-relative addressing. */
199 /* Floating point formats for operand1 and operand2. */
200 fp_operand_format fpof1
;
201 fp_operand_format fpof2
;
204 /* Holds the field selector for this instruction
205 (for example L%, LR%, etc). */
208 /* Holds any argument relocation bits associated with this
209 instruction. (instruction should be some sort of call). */
212 /* The format specification for this instruction. */
215 /* The relocation (if any) associated with this instruction. */
219 /* PA-89 floating point registers are arranged like this:
222 +--------------+--------------+
223 | 0 or 16L | 16 or 16R |
224 +--------------+--------------+
225 | 1 or 17L | 17 or 17R |
226 +--------------+--------------+
234 +--------------+--------------+
235 | 14 or 30L | 30 or 30R |
236 +--------------+--------------+
237 | 15 or 31L | 31 or 31R |
238 +--------------+--------------+
241 The following is a version of pa_parse_number that
242 handles the L/R notation and returns the correct
243 value to put into the instruction register field.
244 The correct value to put into the instruction is
245 encoded in the structure 'pa_11_fp_reg_struct'. */
247 struct pa_11_fp_reg_struct
249 /* The register number. */
256 /* Additional information needed to build argument relocation stubs. */
259 /* The argument relocation specification. */
260 unsigned int arg_reloc
;
262 /* Number of arguments. */
263 unsigned int arg_count
;
267 /* This structure defines an entry in the subspace dictionary
270 struct subspace_dictionary_chain
272 /* Nonzero if this space has been defined by the user code. */
273 unsigned int ssd_defined
;
275 /* Name of this subspace. */
278 /* GAS segment and subsegment associated with this subspace. */
282 /* Next space in the subspace dictionary chain. */
283 struct subspace_dictionary_chain
*ssd_next
;
286 typedef struct subspace_dictionary_chain ssd_chain_struct
;
288 /* This structure defines an entry in the subspace dictionary
291 struct space_dictionary_chain
293 /* Nonzero if this space has been defined by the user code or
294 as a default space. */
295 unsigned int sd_defined
;
297 /* Nonzero if this spaces has been defined by the user code. */
298 unsigned int sd_user_defined
;
300 /* The space number (or index). */
301 unsigned int sd_spnum
;
303 /* The name of this subspace. */
306 /* GAS segment to which this subspace corresponds. */
309 /* Current subsegment number being used. */
312 /* The chain of subspaces contained within this space. */
313 ssd_chain_struct
*sd_subspaces
;
315 /* The next entry in the space dictionary chain. */
316 struct space_dictionary_chain
*sd_next
;
319 typedef struct space_dictionary_chain sd_chain_struct
;
321 /* This structure defines attributes of the default subspace
322 dictionary entries. */
324 struct default_subspace_dict
326 /* Name of the subspace. */
329 /* FIXME. Is this still needed? */
332 /* Nonzero if this subspace is loadable. */
335 /* Nonzero if this subspace contains only code. */
338 /* Nonzero if this is a common subspace. */
341 /* Nonzero if this is a common subspace which allows symbols
342 to be multiply defined. */
345 /* Nonzero if this subspace should be zero filled. */
348 /* Sort key for this subspace. */
351 /* Access control bits for this subspace. Can represent RWX access
352 as well as privilege level changes for gateways. */
355 /* Index of containing space. */
358 /* Alignment (in bytes) of this subspace. */
361 /* Quadrant within space where this subspace should be loaded. */
364 /* An index into the default spaces array. */
367 /* Subsegment associated with this subspace. */
371 /* This structure defines attributes of the default space
372 dictionary entries. */
374 struct default_space_dict
376 /* Name of the space. */
379 /* Space number. It is possible to identify spaces within
380 assembly code numerically! */
383 /* Nonzero if this space is loadable. */
386 /* Nonzero if this space is "defined". FIXME is still needed */
389 /* Nonzero if this space can not be shared. */
392 /* Sort key for this space. */
395 /* Segment associated with this space. */
400 /* Structure for previous label tracking. Needed so that alignments,
401 callinfo declarations, etc can be easily attached to a particular
403 typedef struct label_symbol_struct
405 struct symbol
*lss_label
;
407 sd_chain_struct
*lss_space
;
412 struct label_symbol_struct
*lss_next
;
416 /* Extra information needed to perform fixups (relocations) on the PA. */
417 struct hppa_fix_struct
419 /* The field selector. */
420 enum hppa_reloc_field_selector_type_alt fx_r_field
;
425 /* Format of fixup. */
428 /* Argument relocation bits. */
431 /* The segment this fixup appears in. */
435 /* Structure to hold information about predefined registers. */
443 /* This structure defines the mapping from a FP condition string
444 to a condition number which can be recorded in an instruction. */
451 /* This structure defines a mapping from a field selector
452 string to a field selector type. */
453 struct selector_entry
459 /* Prototypes for functions local to tc-hppa.c. */
462 static void pa_check_current_space_and_subspace
PARAMS ((void));
465 static fp_operand_format pa_parse_fp_format
PARAMS ((char **s
));
466 static void pa_cons
PARAMS ((int));
467 static void pa_data
PARAMS ((int));
468 static void pa_float_cons
PARAMS ((int));
469 static void pa_fill
PARAMS ((int));
470 static void pa_lcomm
PARAMS ((int));
471 static void pa_lsym
PARAMS ((int));
472 static void pa_stringer
PARAMS ((int));
473 static void pa_text
PARAMS ((int));
474 static void pa_version
PARAMS ((int));
475 static int pa_parse_fp_cmp_cond
PARAMS ((char **));
476 static int get_expression
PARAMS ((char *));
477 static int pa_get_absolute_expression
PARAMS ((struct pa_it
*, char **));
478 static int evaluate_absolute
PARAMS ((struct pa_it
*));
479 static unsigned int pa_build_arg_reloc
PARAMS ((char *));
480 static unsigned int pa_align_arg_reloc
PARAMS ((unsigned int, unsigned int));
481 static int pa_parse_nullif
PARAMS ((char **));
482 static int pa_parse_nonneg_cmpsub_cmpltr
PARAMS ((char **, int));
483 static int pa_parse_neg_cmpsub_cmpltr
PARAMS ((char **, int));
484 static int pa_parse_neg_add_cmpltr
PARAMS ((char **, int));
485 static int pa_parse_nonneg_add_cmpltr
PARAMS ((char **, int));
486 static void pa_block
PARAMS ((int));
487 static void pa_brtab
PARAMS ((int));
488 static void pa_try
PARAMS ((int));
489 static void pa_call
PARAMS ((int));
490 static void pa_call_args
PARAMS ((struct call_desc
*));
491 static void pa_callinfo
PARAMS ((int));
492 static void pa_code
PARAMS ((int));
493 static void pa_comm
PARAMS ((int));
494 static void pa_copyright
PARAMS ((int));
495 static void pa_end
PARAMS ((int));
496 static void pa_enter
PARAMS ((int));
497 static void pa_entry
PARAMS ((int));
498 static void pa_equ
PARAMS ((int));
499 static void pa_exit
PARAMS ((int));
500 static void pa_export
PARAMS ((int));
501 static void pa_type_args
PARAMS ((symbolS
*, int));
502 static void pa_import
PARAMS ((int));
503 static void pa_label
PARAMS ((int));
504 static void pa_leave
PARAMS ((int));
505 static void pa_level
PARAMS ((int));
506 static void pa_origin
PARAMS ((int));
507 static void pa_proc
PARAMS ((int));
508 static void pa_procend
PARAMS ((int));
509 static void pa_param
PARAMS ((int));
510 static void pa_undefine_label
PARAMS ((void));
511 static int need_pa11_opcode
PARAMS ((struct pa_it
*,
512 struct pa_11_fp_reg_struct
*));
513 static int pa_parse_number
PARAMS ((char **, struct pa_11_fp_reg_struct
*));
514 static label_symbol_struct
*pa_get_label
PARAMS ((void));
516 static void pa_compiler
PARAMS ((int));
517 static void pa_align
PARAMS ((int));
518 static void pa_space
PARAMS ((int));
519 static void pa_spnum
PARAMS ((int));
520 static void pa_subspace
PARAMS ((int));
521 static sd_chain_struct
*create_new_space
PARAMS ((char *, int, int,
524 static ssd_chain_struct
*create_new_subspace
PARAMS ((sd_chain_struct
*,
529 static ssd_chain_struct
*update_subspace
PARAMS ((sd_chain_struct
*,
530 char *, int, int, int,
534 static sd_chain_struct
*is_defined_space
PARAMS ((char *));
535 static ssd_chain_struct
*is_defined_subspace
PARAMS ((char *));
536 static sd_chain_struct
*pa_segment_to_space
PARAMS ((asection
*));
537 static ssd_chain_struct
*pa_subsegment_to_subspace
PARAMS ((asection
*,
539 static sd_chain_struct
*pa_find_space_by_number
PARAMS ((int));
540 static unsigned int pa_subspace_start
PARAMS ((sd_chain_struct
*, int));
541 static sd_chain_struct
*pa_parse_space_stmt
PARAMS ((char *, int));
542 static int pa_next_subseg
PARAMS ((sd_chain_struct
*));
543 static void pa_spaces_begin
PARAMS ((void));
545 static void pa_ip
PARAMS ((char *));
546 static void fix_new_hppa
PARAMS ((fragS
*, int, int, symbolS
*,
547 long, expressionS
*, int,
548 bfd_reloc_code_real_type
,
549 enum hppa_reloc_field_selector_type_alt
,
551 static int is_end_of_statement
PARAMS ((void));
552 static int reg_name_search
PARAMS ((char *));
553 static int pa_chk_field_selector
PARAMS ((char **));
554 static int is_same_frag
PARAMS ((fragS
*, fragS
*));
555 static void process_exit
PARAMS ((void));
556 static int log2
PARAMS ((int));
557 static unsigned int pa_stringer_aux
PARAMS ((char *));
560 static void hppa_elf_mark_end_of_function
PARAMS ((void));
561 static void pa_build_unwind_subspace
PARAMS ((struct call_info
*));
564 /* File and gloally scoped variable declarations. */
567 /* Root and final entry in the space chain. */
568 static sd_chain_struct
*space_dict_root
;
569 static sd_chain_struct
*space_dict_last
;
571 /* The current space and subspace. */
572 static sd_chain_struct
*current_space
;
573 static ssd_chain_struct
*current_subspace
;
576 /* Root of the call_info chain. */
577 static struct call_info
*call_info_root
;
579 /* The last call_info (for functions) structure
580 seen so it can be associated with fixups and
582 static struct call_info
*last_call_info
;
584 /* The last call description (for actual calls). */
585 static struct call_desc last_call_desc
;
587 /* handle of the OPCODE hash table */
588 static struct hash_control
*op_hash
= NULL
;
590 /* This array holds the chars that always start a comment. If the
591 pre-processor is disabled, these aren't very useful. */
592 const char comment_chars
[] = ";";
594 /* Table of pseudo ops for the PA. FIXME -- how many of these
595 are now redundant with the overall GAS and the object file
597 const pseudo_typeS md_pseudo_table
[] =
599 /* align pseudo-ops on the PA specify the actual alignment requested,
600 not the log2 of the requested alignment. */
602 {"align", pa_align
, 8},
605 {"align", s_align_bytes
, 8},
607 {"begin_brtab", pa_brtab
, 1},
608 {"begin_try", pa_try
, 1},
609 {"block", pa_block
, 1},
610 {"blockz", pa_block
, 0},
611 {"byte", pa_cons
, 1},
612 {"call", pa_call
, 0},
613 {"callinfo", pa_callinfo
, 0},
614 {"code", pa_code
, 0},
615 {"comm", pa_comm
, 0},
617 {"compiler", pa_compiler
, 0},
619 {"copyright", pa_copyright
, 0},
620 {"data", pa_data
, 0},
621 {"double", pa_float_cons
, 'd'},
622 {"dword", pa_cons
, 8},
624 {"end_brtab", pa_brtab
, 0},
625 {"end_try", pa_try
, 0},
626 {"enter", pa_enter
, 0},
627 {"entry", pa_entry
, 0},
629 {"exit", pa_exit
, 0},
630 {"export", pa_export
, 0},
631 {"fill", pa_fill
, 0},
632 {"float", pa_float_cons
, 'f'},
633 {"half", pa_cons
, 2},
634 {"import", pa_import
, 0},
636 {"label", pa_label
, 0},
637 {"lcomm", pa_lcomm
, 0},
638 {"leave", pa_leave
, 0},
639 {"level", pa_level
, 0},
640 {"long", pa_cons
, 4},
641 {"lsym", pa_lsym
, 0},
643 {"nsubspa", pa_subspace
, 1},
645 {"octa", pa_cons
, 16},
646 {"org", pa_origin
, 0},
647 {"origin", pa_origin
, 0},
648 {"param", pa_param
, 0},
649 {"proc", pa_proc
, 0},
650 {"procend", pa_procend
, 0},
651 {"quad", pa_cons
, 8},
653 {"short", pa_cons
, 2},
654 {"single", pa_float_cons
, 'f'},
656 {"space", pa_space
, 0},
657 {"spnum", pa_spnum
, 0},
659 {"string", pa_stringer
, 0},
660 {"stringz", pa_stringer
, 1},
662 {"subspa", pa_subspace
, 0},
664 {"text", pa_text
, 0},
665 {"version", pa_version
, 0},
666 {"word", pa_cons
, 4},
670 /* This array holds the chars that only start a comment at the beginning of
671 a line. If the line seems to have the form '# 123 filename'
672 .line and .file directives will appear in the pre-processed output.
674 Note that input_file.c hand checks for '#' at the beginning of the
675 first line of the input file. This is because the compiler outputs
676 #NO_APP at the beginning of its output.
678 Also note that C style comments will always work. */
679 const char line_comment_chars
[] = "#";
681 /* This array holds the characters which act as line separators. */
682 const char line_separator_chars
[] = "!";
684 /* Chars that can be used to separate mant from exp in floating point nums. */
685 const char EXP_CHARS
[] = "eE";
687 /* Chars that mean this number is a floating point constant.
688 As in 0f12.456 or 0d1.2345e12.
690 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
691 changed in read.c. Ideally it shouldn't hae to know abou it at
692 all, but nothing is ideal around here. */
693 const char FLT_CHARS
[] = "rRsSfFdDxXpP";
695 static struct pa_it the_insn
;
697 /* Points to the end of an expression just parsed by get_expressoin
698 and friends. FIXME. This shouldn't be handled with a file-global
700 static char *expr_end
;
702 /* Nonzero if a .callinfo appeared within the current procedure. */
703 static int callinfo_found
;
705 /* Nonzero if the assembler is currently within a .entry/.exit pair. */
706 static int within_entry_exit
;
708 /* Nonzero if the assembler is currently within a procedure definition. */
709 static int within_procedure
;
711 /* Handle on strucutre which keep track of the last symbol
712 seen in each subspace. */
713 static label_symbol_struct
*label_symbols_rootp
= NULL
;
715 /* Holds the last field selector. */
716 static int hppa_field_selector
;
719 /* A dummy bfd symbol so that all relocations have symbols of some kind. */
720 static symbolS
*dummy_symbol
;
723 /* Nonzero if errors are to be printed. */
724 static int print_errors
= 1;
726 /* List of registers that are pre-defined:
728 Each general register has one predefined name of the form
729 %r<REGNUM> which has the value <REGNUM>.
731 Space and control registers are handled in a similar manner,
732 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
734 Likewise for the floating point registers, but of the form
735 %fr<REGNUM>. Floating point registers have additional predefined
736 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
737 again have the value <REGNUM>.
739 Many registers also have synonyms:
741 %r26 - %r23 have %arg0 - %arg3 as synonyms
742 %r28 - %r29 have %ret0 - %ret1 as synonyms
743 %r30 has %sp as a synonym
744 %r27 has %dp as a synonym
745 %r2 has %rp as a synonym
747 Almost every control register has a synonym; they are not listed
750 The table is sorted. Suitable for searching by a binary search. */
752 static const struct pd_reg pre_defined_registers
[] =
952 /* This table is sorted by order of the length of the string. This is
953 so we check for <> before we check for <. If we had a <> and checked
954 for < first, we would get a false match. */
955 static const struct fp_cond_map fp_cond_map
[] =
991 static const struct selector_entry selector_table
[] =
1016 /* default space and subspace dictionaries */
1018 #define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1019 #define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1021 /* pre-defined subsegments (subspaces) for the HPPA. */
1022 #define SUBSEG_CODE 0
1023 #define SUBSEG_LIT 1
1024 #define SUBSEG_MILLI 2
1025 #define SUBSEG_DATA 0
1026 #define SUBSEG_BSS 2
1027 #define SUBSEG_UNWIND 3
1028 #define SUBSEG_GDB_STRINGS 0
1029 #define SUBSEG_GDB_SYMBOLS 1
1031 static struct default_subspace_dict pa_def_subspaces
[] =
1033 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE
},
1034 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA
},
1035 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT
},
1036 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI
},
1037 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS
},
1038 {NULL
, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1041 static struct default_space_dict pa_def_spaces
[] =
1043 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL
},
1044 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL
},
1045 {NULL
, 0, 0, 0, 0, 0, ASEC_NULL
}
1048 /* Misc local definitions used by the assembler. */
1050 /* These macros are used to maintain spaces/subspaces. */
1051 #define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1052 #define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1053 #define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1054 #define SPACE_NAME(space_chain) (space_chain)->sd_name
1056 #define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1057 #define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1060 /* Return nonzero if the string pointed to by S potentially represents
1061 a right or left half of a FP register */
1062 #define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1063 #define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1065 /* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1066 main loop after insertion. */
1068 #define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1070 ((OPCODE) |= (FIELD) << (START)); \
1074 /* Simple range checking for FIELD againt HIGH and LOW bounds.
1075 IGNORE is used to suppress the error message. */
1077 #define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1079 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1082 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1088 #define is_DP_relative(exp) \
1089 ((exp).X_op == O_subtract \
1090 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
1092 #define is_PC_relative(exp) \
1093 ((exp).X_op == O_subtract \
1094 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
1096 /* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1097 always be able to reduce the expression to a constant, so we don't
1098 need real complex handling yet. */
1099 #define is_complex(exp) \
1100 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1102 /* Actual functions to implement the PA specific code for the assembler. */
1104 /* Called before writing the object file. Make sure entry/exit and
1105 proc/procend pairs match. */
1110 if (within_entry_exit
)
1111 as_fatal (_("Missing .exit\n"));
1113 if (within_procedure
)
1114 as_fatal (_("Missing .procend\n"));
1117 /* Returns a pointer to the label_symbol_struct for the current space.
1118 or NULL if no label_symbol_struct exists for the current space. */
1120 static label_symbol_struct
*
1123 label_symbol_struct
*label_chain
;
1125 for (label_chain
= label_symbols_rootp
;
1127 label_chain
= label_chain
->lss_next
)
1130 if (current_space
== label_chain
->lss_space
&& label_chain
->lss_label
)
1134 if (now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
)
1142 /* Defines a label for the current space. If one is already defined,
1143 this function will replace it with the new label. */
1146 pa_define_label (symbol
)
1149 label_symbol_struct
*label_chain
= pa_get_label ();
1152 label_chain
->lss_label
= symbol
;
1155 /* Create a new label entry and add it to the head of the chain. */
1157 = (label_symbol_struct
*) xmalloc (sizeof (label_symbol_struct
));
1158 label_chain
->lss_label
= symbol
;
1160 label_chain
->lss_space
= current_space
;
1163 label_chain
->lss_segment
= now_seg
;
1165 label_chain
->lss_next
= NULL
;
1167 if (label_symbols_rootp
)
1168 label_chain
->lss_next
= label_symbols_rootp
;
1170 label_symbols_rootp
= label_chain
;
1174 /* Removes a label definition for the current space.
1175 If there is no label_symbol_struct entry, then no action is taken. */
1178 pa_undefine_label ()
1180 label_symbol_struct
*label_chain
;
1181 label_symbol_struct
*prev_label_chain
= NULL
;
1183 for (label_chain
= label_symbols_rootp
;
1185 label_chain
= label_chain
->lss_next
)
1189 && current_space
== label_chain
->lss_space
&& label_chain
->lss_label
1192 && now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
1196 /* Remove the label from the chain and free its memory. */
1197 if (prev_label_chain
)
1198 prev_label_chain
->lss_next
= label_chain
->lss_next
;
1200 label_symbols_rootp
= label_chain
->lss_next
;
1205 prev_label_chain
= label_chain
;
1210 /* An HPPA-specific version of fix_new. This is required because the HPPA
1211 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1212 results in the creation of an instance of an hppa_fix_struct. An
1213 hppa_fix_struct stores the extra information along with a pointer to the
1214 original fixS. This is attached to the original fixup via the
1215 tc_fix_data field. */
1218 fix_new_hppa (frag
, where
, size
, add_symbol
, offset
, exp
, pcrel
,
1219 r_type
, r_field
, r_format
, arg_reloc
, unwind_bits
)
1223 symbolS
*add_symbol
;
1227 bfd_reloc_code_real_type r_type
;
1228 enum hppa_reloc_field_selector_type_alt r_field
;
1235 struct hppa_fix_struct
*hppa_fix
= (struct hppa_fix_struct
*)
1236 obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
1239 new_fix
= fix_new_exp (frag
, where
, size
, exp
, pcrel
, r_type
);
1241 new_fix
= fix_new (frag
, where
, size
, add_symbol
, offset
, pcrel
, r_type
);
1242 new_fix
->tc_fix_data
= (void *) hppa_fix
;
1243 hppa_fix
->fx_r_type
= r_type
;
1244 hppa_fix
->fx_r_field
= r_field
;
1245 hppa_fix
->fx_r_format
= r_format
;
1246 hppa_fix
->fx_arg_reloc
= arg_reloc
;
1247 hppa_fix
->segment
= now_seg
;
1249 if (r_type
== R_ENTRY
|| r_type
== R_EXIT
)
1250 new_fix
->fx_offset
= *unwind_bits
;
1253 /* foo-$global$ is used to access non-automatic storage. $global$
1254 is really just a marker and has served its purpose, so eliminate
1255 it now so as not to confuse write.c. */
1256 if (new_fix
->fx_subsy
1257 && !strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$global$"))
1258 new_fix
->fx_subsy
= NULL
;
1261 /* Parse a .byte, .word, .long expression for the HPPA. Called by
1262 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1265 parse_cons_expression_hppa (exp
)
1268 hppa_field_selector
= pa_chk_field_selector (&input_line_pointer
);
1272 /* This fix_new is called by cons via TC_CONS_FIX_NEW.
1273 hppa_field_selector is set by the parse_cons_expression_hppa. */
1276 cons_fix_new_hppa (frag
, where
, size
, exp
)
1282 unsigned int rel_type
;
1284 /* Get a base relocation type. */
1285 if (is_DP_relative (*exp
))
1286 rel_type
= R_HPPA_GOTOFF
;
1287 else if (is_complex (*exp
))
1288 rel_type
= R_HPPA_COMPLEX
;
1292 if (hppa_field_selector
!= e_psel
&& hppa_field_selector
!= e_fsel
)
1293 as_warn (_("Invalid field selector. Assuming F%%."));
1295 fix_new_hppa (frag
, where
, size
,
1296 (symbolS
*) NULL
, (offsetT
) 0, exp
, 0, rel_type
,
1297 hppa_field_selector
, size
* 8, 0, NULL
);
1299 /* Reset field selector to its default state. */
1300 hppa_field_selector
= 0;
1303 /* This function is called once, at assembler startup time. It should
1304 set up all the tables, etc. that the MD part of the assembler will need. */
1309 const char *retval
= NULL
;
1313 last_call_info
= NULL
;
1314 call_info_root
= NULL
;
1316 /* Set the default machine type. */
1317 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
1318 as_warn (_("could not set architecture and machine"));
1320 /* Folding of text and data segments fails miserably on the PA.
1321 Warn user and disable "-R" option. */
1322 if (flag_readonly_data_in_text
)
1324 as_warn (_("-R option not supported on this target."));
1325 flag_readonly_data_in_text
= 0;
1332 op_hash
= hash_new ();
1334 while (i
< NUMOPCODES
)
1336 const char *name
= pa_opcodes
[i
].name
;
1337 retval
= hash_insert (op_hash
, name
, (struct pa_opcode
*) &pa_opcodes
[i
]);
1338 if (retval
!= NULL
&& *retval
!= '\0')
1340 as_fatal (_("Internal error: can't hash `%s': %s\n"), name
, retval
);
1345 if ((pa_opcodes
[i
].match
& pa_opcodes
[i
].mask
)
1346 != pa_opcodes
[i
].match
)
1348 fprintf (stderr
, _("internal error: losing opcode: `%s' \"%s\"\n"),
1349 pa_opcodes
[i
].name
, pa_opcodes
[i
].args
);
1354 while (i
< NUMOPCODES
&& !strcmp (pa_opcodes
[i
].name
, name
));
1358 as_fatal (_("Broken assembler. No assembly attempted."));
1361 /* SOM will change text_section. To make sure we never put
1362 anything into the old one switch to the new one now. */
1363 subseg_set (text_section
, 0);
1367 dummy_symbol
= symbol_find_or_make ("L$dummy");
1368 S_SET_SEGMENT (dummy_symbol
, text_section
);
1369 /* Force the symbol to be converted to a real symbol. */
1370 (void) symbol_get_bfdsym (dummy_symbol
);
1374 /* Assemble a single instruction storing it into a frag. */
1381 /* The had better be something to assemble. */
1384 /* If we are within a procedure definition, make sure we've
1385 defined a label for the procedure; handle case where the
1386 label was defined after the .PROC directive.
1388 Note there's not need to diddle with the segment or fragment
1389 for the label symbol in this case. We have already switched
1390 into the new $CODE$ subspace at this point. */
1391 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
1393 label_symbol_struct
*label_symbol
= pa_get_label ();
1397 if (label_symbol
->lss_label
)
1399 last_call_info
->start_symbol
= label_symbol
->lss_label
;
1400 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
1403 /* Also handle allocation of a fixup to hold the unwind
1404 information when the label appears after the proc/procend. */
1405 if (within_entry_exit
)
1407 char *where
= frag_more (0);
1409 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
1410 NULL
, (offsetT
) 0, NULL
,
1411 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
1412 (int *)&last_call_info
->ci_unwind
.descriptor
);
1417 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1420 as_bad (_("Missing function name for .PROC"));
1423 /* Assemble the instruction. Results are saved into "the_insn". */
1426 /* Get somewhere to put the assembled instrution. */
1429 /* Output the opcode. */
1430 md_number_to_chars (to
, the_insn
.opcode
, 4);
1432 /* If necessary output more stuff. */
1433 if (the_insn
.reloc
!= R_HPPA_NONE
)
1434 fix_new_hppa (frag_now
, (to
- frag_now
->fr_literal
), 4, NULL
,
1435 (offsetT
) 0, &the_insn
.exp
, the_insn
.pcrel
,
1436 the_insn
.reloc
, the_insn
.field_selector
,
1437 the_insn
.format
, the_insn
.arg_reloc
, NULL
);
1440 /* Do the real work for assembling a single instruction. Store results
1441 into the global "the_insn" variable. */
1447 char *error_message
= "";
1448 char *s
, c
, *argstart
, *name
, *save_s
;
1452 int cmpltr
, nullif
, flag
, cond
, num
;
1453 unsigned long opcode
;
1454 struct pa_opcode
*insn
;
1457 /* We must have a valid space and subspace. */
1458 pa_check_current_space_and_subspace ();
1461 /* Convert everything up to the first whitespace character into lower
1463 for (s
= str
; *s
!= ' ' && *s
!= '\t' && *s
!= '\n' && *s
!= '\0'; s
++)
1467 /* Skip to something interesting. */
1468 for (s
= str
; isupper (*s
) || islower (*s
) || (*s
>= '0' && *s
<= '3'); ++s
)
1487 as_fatal (_("Unknown opcode: `%s'"), str
);
1492 /* Look up the opcode in the has table. */
1493 if ((insn
= (struct pa_opcode
*) hash_find (op_hash
, str
)) == NULL
)
1495 as_bad ("Unknown opcode: `%s'", str
);
1504 /* Mark the location where arguments for the instruction start, then
1505 start processing them. */
1509 /* Do some initialization. */
1510 opcode
= insn
->match
;
1511 memset (&the_insn
, 0, sizeof (the_insn
));
1513 the_insn
.reloc
= R_HPPA_NONE
;
1515 /* If this instruction is specific to a particular architecture,
1516 then set a new architecture. */
1517 /* But do not automatically promote to pa2.0. The automatic promotion
1518 crud is for compatability with HP's old assemblers only. */
1520 && bfd_get_mach (stdoutput
) < insn
->arch
)
1522 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, insn
->arch
))
1523 as_warn (_("could not update architecture and machine"));
1525 else if (bfd_get_mach (stdoutput
) < insn
->arch
)
1531 /* Build the opcode, checking as we go to make
1532 sure that the operands match. */
1533 for (args
= insn
->args
;; ++args
)
1538 /* End of arguments. */
1554 /* These must match exactly. */
1563 /* Handle a 5 bit register or control register field at 10. */
1566 num
= pa_parse_number (&s
, 0);
1567 CHECK_FIELD (num
, 31, 0, 0);
1568 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1570 /* Handle a 5 bit register field at 15. */
1572 num
= pa_parse_number (&s
, 0);
1573 CHECK_FIELD (num
, 31, 0, 0);
1574 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1576 /* Handle a 5 bit register field at 31. */
1579 num
= pa_parse_number (&s
, 0);
1580 CHECK_FIELD (num
, 31, 0, 0);
1581 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1583 /* Handle a 5 bit field length at 31. */
1585 num
= pa_get_absolute_expression (&the_insn
, &s
);
1587 CHECK_FIELD (num
, 32, 1, 0);
1588 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
1590 /* Handle a 5 bit immediate at 15. */
1592 num
= pa_get_absolute_expression (&the_insn
, &s
);
1594 CHECK_FIELD (num
, 15, -16, 0);
1595 low_sign_unext (num
, 5, &num
);
1596 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1598 /* Handle a 5 bit immediate at 31. */
1600 num
= pa_get_absolute_expression (&the_insn
, &s
);
1602 CHECK_FIELD (num
, 15, -16, 0)
1603 low_sign_unext (num
, 5, &num
);
1604 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1606 /* Handle an unsigned 5 bit immediate at 31. */
1608 num
= pa_get_absolute_expression (&the_insn
, &s
);
1610 CHECK_FIELD (num
, 31, 0, 0);
1611 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1613 /* Handle an unsigned 5 bit immediate at 15. */
1615 num
= pa_get_absolute_expression (&the_insn
, &s
);
1617 CHECK_FIELD (num
, 31, 0, 0);
1618 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1620 /* Handle a 2 bit space identifier at 17. */
1622 num
= pa_parse_number (&s
, 0);
1623 CHECK_FIELD (num
, 3, 0, 1);
1624 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
1626 /* Handle a 3 bit space identifier at 18. */
1628 num
= pa_parse_number (&s
, 0);
1629 CHECK_FIELD (num
, 7, 0, 1);
1630 dis_assemble_3 (num
, &num
);
1631 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
1633 /* Handle a completer for an indexing load or store. */
1639 while (*s
== ',' && i
< 2)
1642 if (strncasecmp (s
, "sm", 2) == 0)
1649 else if (strncasecmp (s
, "m", 1) == 0)
1651 else if (strncasecmp (s
, "s", 1) == 0)
1654 as_bad (_("Invalid Indexed Load Completer."));
1659 as_bad (_("Invalid Indexed Load Completer Syntax."));
1661 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
1664 /* Handle a short load/store completer. */
1672 if (strncasecmp (s
, "ma", 2) == 0)
1677 else if (strncasecmp (s
, "mb", 2) == 0)
1683 as_bad (_("Invalid Short Load/Store Completer."));
1690 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1694 /* Handle a stbys completer. */
1700 while (*s
== ',' && i
< 2)
1703 if (strncasecmp (s
, "m", 1) == 0)
1705 else if (strncasecmp (s
, "b", 1) == 0)
1707 else if (strncasecmp (s
, "e", 1) == 0)
1710 as_bad (_("Invalid Store Bytes Short Completer"));
1715 as_bad (_("Invalid Store Bytes Short Completer"));
1717 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1720 /* Handle all conditions. */
1726 /* Handle FP compare conditions. */
1728 cond
= pa_parse_fp_cmp_cond (&s
);
1729 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
1731 /* Handle an add condition. */
1740 /* 64 bit conditions. */
1750 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1754 if (strcmp (name
, "=") == 0)
1756 else if (strcmp (name
, "<") == 0)
1758 else if (strcmp (name
, "<=") == 0)
1760 else if (strcasecmp (name
, "nuv") == 0)
1762 else if (strcasecmp (name
, "znv") == 0)
1764 else if (strcasecmp (name
, "sv") == 0)
1766 else if (strcasecmp (name
, "od") == 0)
1768 else if (strcasecmp (name
, "tr") == 0)
1773 else if (strcmp (name
, "<>") == 0)
1778 else if (strcmp (name
, ">=") == 0)
1783 else if (strcmp (name
, ">") == 0)
1788 else if (strcasecmp (name
, "uv") == 0)
1793 else if (strcasecmp (name
, "vnz") == 0)
1798 else if (strcasecmp (name
, "nsv") == 0)
1803 else if (strcasecmp (name
, "ev") == 0)
1808 /* ",*" is a valid condition. */
1809 else if (*args
== 'a')
1810 as_bad (_("Invalid Add Condition: %s"), name
);
1813 opcode
|= cmpltr
<< 13;
1814 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
1816 /* Handle non-negated add and branch condition. */
1818 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1821 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
1824 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1826 /* Handle negated add and branch condition. */
1830 /* Handle wide-mode non-negated add and branch condition. */
1834 /* Handle wide-mode negated add and branch condition. */
1838 /* Handle a negated or non-negated add and branch
1842 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1846 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
1849 as_bad (_("Invalid Compare/Subtract Condition"));
1854 /* Negated condition requires an opcode change. */
1858 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1860 /* Handle branch on bit conditions. */
1876 if (strncmp (s
, "<", 1) == 0)
1881 else if (strncmp (s
, ">=", 2) == 0)
1887 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
1889 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
1891 /* Handle a compare/subtract condition. */
1900 /* 64 bit conditions. */
1910 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1914 if (strcmp (name
, "=") == 0)
1916 else if (strcmp (name
, "<") == 0)
1918 else if (strcmp (name
, "<=") == 0)
1920 else if (strcasecmp (name
, "<<") == 0)
1922 else if (strcasecmp (name
, "<<=") == 0)
1924 else if (strcasecmp (name
, "sv") == 0)
1926 else if (strcasecmp (name
, "od") == 0)
1928 else if (strcasecmp (name
, "tr") == 0)
1933 else if (strcmp (name
, "<>") == 0)
1938 else if (strcmp (name
, ">=") == 0)
1943 else if (strcmp (name
, ">") == 0)
1948 else if (strcasecmp (name
, ">>=") == 0)
1953 else if (strcasecmp (name
, ">>") == 0)
1958 else if (strcasecmp (name
, "nsv") == 0)
1963 else if (strcasecmp (name
, "ev") == 0)
1968 /* ",*" is a valid condition. */
1969 else if (*args
!= 'S')
1970 as_bad (_("Invalid Compare/Subtract Condition: %s"),
1974 opcode
|= cmpltr
<< 13;
1975 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
1977 /* Handle a non-negated compare condition. */
1979 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
1982 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
1985 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1987 /* Handle a negated compare condition. */
1991 /* Handle a 64 bit non-negated compare condition. */
1995 /* Handle a 64 bit negated compare condition. */
1999 /* Handle a 64 bit cmpib condition. */
2003 /* Handle a negated or non-negated compare/subtract
2007 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2011 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2014 as_bad (_("Invalid Compare/Subtract Condition."));
2019 /* Negated condition requires an opcode change. */
2024 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2026 /* Handle a logical instruction condition. */
2035 /* 64 bit conditions. */
2045 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2051 if (strcmp (name
, "=") == 0)
2053 else if (strcmp (name
, "<") == 0)
2055 else if (strcmp (name
, "<=") == 0)
2057 else if (strcasecmp (name
, "od") == 0)
2059 else if (strcasecmp (name
, "tr") == 0)
2064 else if (strcmp (name
, "<>") == 0)
2069 else if (strcmp (name
, ">=") == 0)
2074 else if (strcmp (name
, ">") == 0)
2079 else if (strcasecmp (name
, "ev") == 0)
2084 /* ",*" is a valid condition. */
2085 else if (*args
!= 'L')
2086 as_bad (_("Invalid Logical Instruction Condition."));
2089 opcode
|= cmpltr
<< 13;
2090 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2092 /* Handle a shift/extract/deposit condition. */
2101 /* 64 bit conditions. */
2111 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2115 if (strcmp (name
, "=") == 0)
2117 else if (strcmp (name
, "<") == 0)
2119 else if (strcasecmp (name
, "od") == 0)
2121 else if (strcasecmp (name
, "tr") == 0)
2123 else if (strcmp (name
, "<>") == 0)
2125 else if (strcmp (name
, ">=") == 0)
2127 else if (strcasecmp (name
, "ev") == 0)
2129 /* Handle movb,n. Put things back the way they were.
2130 This includes moving s back to where it started. */
2131 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2137 /* ",*" is a valid condition. */
2138 else if (*args
!= 'X')
2139 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2142 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2144 /* Handle a unit instruction condition. */
2153 /* 64 bit conditions. */
2162 if (strncasecmp (s
, "sbz", 3) == 0)
2167 else if (strncasecmp (s
, "shz", 3) == 0)
2172 else if (strncasecmp (s
, "sdc", 3) == 0)
2177 else if (strncasecmp (s
, "sbc", 3) == 0)
2182 else if (strncasecmp (s
, "shc", 3) == 0)
2187 else if (strncasecmp (s
, "tr", 2) == 0)
2193 else if (strncasecmp (s
, "nbz", 3) == 0)
2199 else if (strncasecmp (s
, "nhz", 3) == 0)
2205 else if (strncasecmp (s
, "ndc", 3) == 0)
2211 else if (strncasecmp (s
, "nbc", 3) == 0)
2217 else if (strncasecmp (s
, "nhc", 3) == 0)
2223 /* ",*" is a valid condition. */
2224 else if (*args
!= 'U')
2225 as_bad (_("Invalid Unit Instruction Condition."));
2227 opcode
|= cmpltr
<< 13;
2228 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2236 /* Handle a system control completer. */
2238 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
2246 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
2248 /* Handle a nullification completer for branch instructions. */
2250 nullif
= pa_parse_nullif (&s
);
2251 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2253 /* Handle a nullification completer for copr and spop insns. */
2255 nullif
= pa_parse_nullif (&s
);
2256 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2259 /* Handle a 11 bit immediate at 31. */
2261 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2264 if (the_insn
.exp
.X_op
== O_constant
)
2266 num
= evaluate_absolute (&the_insn
);
2267 CHECK_FIELD (num
, 1023, -1024, 0);
2268 low_sign_unext (num
, 11, &num
);
2269 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2273 if (is_DP_relative (the_insn
.exp
))
2274 the_insn
.reloc
= R_HPPA_GOTOFF
;
2275 else if (is_PC_relative (the_insn
.exp
))
2276 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2278 the_insn
.reloc
= R_HPPA
;
2279 the_insn
.format
= 11;
2284 /* Handle a 14 bit immediate at 31. */
2286 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2289 if (the_insn
.exp
.X_op
== O_constant
)
2291 num
= evaluate_absolute (&the_insn
);
2292 CHECK_FIELD (num
, 8191, -8192, 0);
2293 low_sign_unext (num
, 14, &num
);
2294 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2298 if (is_DP_relative (the_insn
.exp
))
2299 the_insn
.reloc
= R_HPPA_GOTOFF
;
2300 else if (is_PC_relative (the_insn
.exp
))
2301 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2303 the_insn
.reloc
= R_HPPA
;
2304 the_insn
.format
= 14;
2308 /* Handle a 21 bit immediate at 31. */
2310 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2313 if (the_insn
.exp
.X_op
== O_constant
)
2315 num
= evaluate_absolute (&the_insn
);
2316 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2317 dis_assemble_21 (num
, &num
);
2318 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2322 if (is_DP_relative (the_insn
.exp
))
2323 the_insn
.reloc
= R_HPPA_GOTOFF
;
2324 else if (is_PC_relative (the_insn
.exp
))
2325 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2327 the_insn
.reloc
= R_HPPA
;
2328 the_insn
.format
= 21;
2332 /* Handle a 12 bit branch displacement. */
2334 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2338 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2340 unsigned int w1
, w
, result
;
2342 num
= evaluate_absolute (&the_insn
);
2345 as_bad (_("Branch to unaligned address"));
2348 CHECK_FIELD (num
, 8199, -8184, 0);
2349 sign_unext ((num
- 8) >> 2, 12, &result
);
2350 dis_assemble_12 (result
, &w1
, &w
);
2351 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2355 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2356 the_insn
.format
= 12;
2357 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2358 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2363 /* Handle a 17 bit branch displacement. */
2365 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2369 if (!the_insn
.exp
.X_add_symbol
2370 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2373 unsigned int w2
, w1
, w
, result
;
2375 num
= evaluate_absolute (&the_insn
);
2378 as_bad (_("Branch to unaligned address"));
2381 CHECK_FIELD (num
, 262143, -262144, 0);
2383 if (the_insn
.exp
.X_add_symbol
)
2386 sign_unext (num
>> 2, 17, &result
);
2387 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2388 INSERT_FIELD_AND_CONTINUE (opcode
,
2389 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2393 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2394 the_insn
.format
= 17;
2395 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2396 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2400 /* Handle an absolute 17 bit branch target. */
2402 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2406 if (!the_insn
.exp
.X_add_symbol
2407 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2410 unsigned int w2
, w1
, w
, result
;
2412 num
= evaluate_absolute (&the_insn
);
2415 as_bad (_("Branch to unaligned address"));
2418 CHECK_FIELD (num
, 262143, -262144, 0);
2420 if (the_insn
.exp
.X_add_symbol
)
2423 sign_unext (num
>> 2, 17, &result
);
2424 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2425 INSERT_FIELD_AND_CONTINUE (opcode
,
2426 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2430 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2431 the_insn
.format
= 17;
2432 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2433 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2437 /* Handle a 5 bit shift count at 26. */
2439 num
= pa_get_absolute_expression (&the_insn
, &s
);
2441 CHECK_FIELD (num
, 31, 0, 0);
2442 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2444 /* Handle a 5 bit bit position at 26. */
2446 num
= pa_get_absolute_expression (&the_insn
, &s
);
2448 CHECK_FIELD (num
, 31, 0, 0);
2449 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2451 /* Handle a 5 bit immediate at 10. */
2454 num
= pa_get_absolute_expression (&the_insn
, &s
);
2455 if (the_insn
.exp
.X_op
!= O_constant
)
2458 CHECK_FIELD (num
, 31, 0, 0);
2459 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2461 /* Handle a 13 bit immediate at 18. */
2463 num
= pa_get_absolute_expression (&the_insn
, &s
);
2465 CHECK_FIELD (num
, 8191, 0, 0);
2466 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2468 /* Handle a 26 bit immediate at 31. */
2470 num
= pa_get_absolute_expression (&the_insn
, &s
);
2472 CHECK_FIELD (num
, 671108864, 0, 0);
2473 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2475 /* Handle a 3 bit SFU identifier at 25. */
2478 as_bad (_("Invalid SFU identifier"));
2479 num
= pa_get_absolute_expression (&the_insn
, &s
);
2481 CHECK_FIELD (num
, 7, 0, 0);
2482 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2484 /* Handle a 20 bit SOP field for spop0. */
2486 num
= pa_get_absolute_expression (&the_insn
, &s
);
2488 CHECK_FIELD (num
, 1048575, 0, 0);
2489 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2490 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2492 /* Handle a 15bit SOP field for spop1. */
2494 num
= pa_get_absolute_expression (&the_insn
, &s
);
2496 CHECK_FIELD (num
, 32767, 0, 0);
2497 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2499 /* Handle a 10bit SOP field for spop3. */
2501 num
= pa_get_absolute_expression (&the_insn
, &s
);
2503 CHECK_FIELD (num
, 1023, 0, 0);
2504 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
2505 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2507 /* Handle a 15 bit SOP field for spop2. */
2509 num
= pa_get_absolute_expression (&the_insn
, &s
);
2511 CHECK_FIELD (num
, 32767, 0, 0);
2512 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
2513 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2515 /* Handle a 3-bit co-processor ID field. */
2518 as_bad (_("Invalid COPR identifier"));
2519 num
= pa_get_absolute_expression (&the_insn
, &s
);
2521 CHECK_FIELD (num
, 7, 0, 0);
2522 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2524 /* Handle a 22bit SOP field for copr. */
2526 num
= pa_get_absolute_expression (&the_insn
, &s
);
2528 CHECK_FIELD (num
, 4194303, 0, 0);
2529 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
2530 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2533 /* Handle a source FP operand format completer. */
2535 flag
= pa_parse_fp_format (&s
);
2536 the_insn
.fpof1
= flag
;
2537 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2539 /* Handle a destination FP operand format completer. */
2541 /* pa_parse_format needs the ',' prefix. */
2543 flag
= pa_parse_fp_format (&s
);
2544 the_insn
.fpof2
= flag
;
2545 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
2547 /* Handle L/R register halves like 't'. */
2550 struct pa_11_fp_reg_struct result
;
2552 pa_parse_number (&s
, &result
);
2553 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2554 opcode
|= result
.number_part
;
2556 /* 0x30 opcodes are FP arithmetic operation opcodes
2557 and need to be turned into 0x38 opcodes. This
2558 is not necessary for loads/stores. */
2559 if (need_pa11_opcode (&the_insn
, &result
)
2560 && ((opcode
& 0xfc000000) == 0x30000000))
2563 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
2566 /* Handle L/R register halves like 'b'. */
2569 struct pa_11_fp_reg_struct result
;
2571 pa_parse_number (&s
, &result
);
2572 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2573 opcode
|= result
.number_part
<< 21;
2574 if (need_pa11_opcode (&the_insn
, &result
))
2576 opcode
|= (result
.l_r_select
& 1) << 7;
2582 /* Float operand 1 similar to 'b' but with l/r registers. */
2585 struct pa_11_fp_reg_struct result
;
2587 pa_parse_number (&s
, &result
);
2588 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2589 opcode
|= result
.number_part
<< 21;
2590 opcode
|= (result
.l_r_select
& 1) << 7;
2594 /* Handle L/R register halves like 'b'. */
2597 struct pa_11_fp_reg_struct result
;
2600 pa_parse_number (&s
, &result
);
2601 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2602 opcode
|= (result
.number_part
& 0x1c) << 11;
2603 opcode
|= (result
.number_part
& 0x3) << 9;
2604 opcode
|= (result
.l_r_select
& 1) << 8;
2608 /* Handle L/R register halves like 'x'. */
2611 struct pa_11_fp_reg_struct result
;
2613 pa_parse_number (&s
, &result
);
2614 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2615 opcode
|= (result
.number_part
& 0x1f) << 16;
2616 if (need_pa11_opcode (&the_insn
, &result
))
2618 opcode
|= (result
.l_r_select
& 1) << 1;
2623 /* Handle L/R register halves like 'x'. */
2626 struct pa_11_fp_reg_struct result
;
2628 pa_parse_number (&s
, &result
);
2629 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2630 opcode
|= (result
.number_part
& 0x1f) << 16;
2631 if (need_pa11_opcode (&the_insn
, &result
))
2633 opcode
|= (result
.l_r_select
& 1) << 12;
2639 /* Float operand 2, like 'x' but with l/r register halves. */
2642 struct pa_11_fp_reg_struct result
;
2644 pa_parse_number (&s
, &result
);
2645 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2646 opcode
|= (result
.number_part
& 0x1f) << 16;
2647 opcode
|= (result
.l_r_select
& 1) << 12;
2651 /* Handle a 5 bit register field at 10. */
2654 struct pa_11_fp_reg_struct result
;
2656 pa_parse_number (&s
, &result
);
2657 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2658 if (the_insn
.fpof1
== SGL
)
2660 if (result
.number_part
< 16)
2662 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2666 result
.number_part
&= 0xF;
2667 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2669 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
2672 /* Handle a 5 bit register field at 15. */
2675 struct pa_11_fp_reg_struct result
;
2677 pa_parse_number (&s
, &result
);
2678 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2679 if (the_insn
.fpof1
== SGL
)
2681 if (result
.number_part
< 16)
2683 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2686 result
.number_part
&= 0xF;
2687 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2689 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
2692 /* Handle a 5 bit register field at 31. */
2695 struct pa_11_fp_reg_struct result
;
2697 pa_parse_number (&s
, &result
);
2698 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2699 if (the_insn
.fpof1
== SGL
)
2701 if (result
.number_part
< 16)
2703 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2706 result
.number_part
&= 0xF;
2707 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2709 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
2712 /* Handle a 5 bit register field at 20. */
2715 struct pa_11_fp_reg_struct result
;
2717 pa_parse_number (&s
, &result
);
2718 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2719 if (the_insn
.fpof1
== SGL
)
2721 if (result
.number_part
< 16)
2723 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2726 result
.number_part
&= 0xF;
2727 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2729 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
2732 /* Handle a 5 bit register field at 25. */
2735 struct pa_11_fp_reg_struct result
;
2737 pa_parse_number (&s
, &result
);
2738 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2739 if (the_insn
.fpof1
== SGL
)
2741 if (result
.number_part
< 16)
2743 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2746 result
.number_part
&= 0xF;
2747 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2749 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
2752 /* Handle a floating point operand format at 26.
2753 Only allows single and double precision. */
2755 flag
= pa_parse_fp_format (&s
);
2761 the_insn
.fpof1
= flag
;
2767 as_bad (_("Invalid Floating Point Operand Format."));
2778 /* Check if the args matched. */
2781 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
2782 && !strcmp (insn
->name
, insn
[1].name
))
2790 as_bad (_("Invalid operands %s"), error_message
);
2797 the_insn
.opcode
= opcode
;
2800 /* Turn a string in input_line_pointer into a floating point constant of type
2801 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
2802 emitted is stored in *sizeP . An error message or NULL is returned. */
2804 #define MAX_LITTLENUMS 6
2807 md_atof (type
, litP
, sizeP
)
2813 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
2814 LITTLENUM_TYPE
*wordP
;
2846 return _("Bad call to MD_ATOF()");
2848 t
= atof_ieee (input_line_pointer
, type
, words
);
2850 input_line_pointer
= t
;
2851 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
2852 for (wordP
= words
; prec
--;)
2854 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
2855 litP
+= sizeof (LITTLENUM_TYPE
);
2860 /* Write out big-endian. */
2863 md_number_to_chars (buf
, val
, n
)
2868 number_to_chars_bigendian (buf
, val
, n
);
2871 /* Translate internal representation of relocation info to BFD target
2875 tc_gen_reloc (section
, fixp
)
2880 struct hppa_fix_struct
*hppa_fixp
;
2881 bfd_reloc_code_real_type code
;
2882 static arelent
*no_relocs
= NULL
;
2884 bfd_reloc_code_real_type
**codes
;
2888 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
2889 if (fixp
->fx_addsy
== 0)
2891 assert (hppa_fixp
!= 0);
2892 assert (section
!= 0);
2894 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
2896 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2897 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2898 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
2900 hppa_fixp
->fx_r_format
,
2901 hppa_fixp
->fx_r_field
,
2902 fixp
->fx_subsy
!= NULL
,
2903 symbol_get_bfdsym (fixp
->fx_addsy
));
2908 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
2911 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
2912 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
2913 for (i
= 0; i
< n_relocs
; i
++)
2914 relocs
[i
] = &reloc
[i
];
2916 relocs
[n_relocs
] = NULL
;
2919 switch (fixp
->fx_r_type
)
2922 assert (n_relocs
== 1);
2926 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2927 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2928 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2929 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2930 reloc
->addend
= 0; /* default */
2932 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
2934 /* Now, do any processing that is dependent on the relocation type. */
2937 case R_PARISC_DLTREL21L
:
2938 case R_PARISC_DLTREL14R
:
2939 case R_PARISC_DLTREL14F
:
2940 case R_PARISC_PLABEL32
:
2941 case R_PARISC_PLABEL21L
:
2942 case R_PARISC_PLABEL14R
:
2943 /* For plabel relocations, the addend of the
2944 relocation should be either 0 (no static link) or 2
2945 (static link required).
2947 FIXME: We always assume no static link!
2949 We also slam a zero addend into the DLT relative relocs;
2950 it doesn't make a lot of sense to use any addend since
2951 it gets you a different (eg unknown) DLT entry. */
2955 case R_PARISC_PCREL21L
:
2956 case R_PARISC_PCREL17R
:
2957 case R_PARISC_PCREL17F
:
2958 case R_PARISC_PCREL17C
:
2959 case R_PARISC_PCREL14R
:
2960 case R_PARISC_PCREL14F
:
2961 /* The constant is stored in the instruction. */
2962 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
2965 reloc
->addend
= fixp
->fx_offset
;
2972 /* Walk over reach relocation returned by the BFD backend. */
2973 for (i
= 0; i
< n_relocs
; i
++)
2977 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2978 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2979 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2980 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2985 /* The only time we ever use a R_COMP2 fixup is for the difference
2986 of two symbols. With that in mind we fill in all four
2987 relocs now and break out of the loop. */
2989 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
2990 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
2991 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2992 relocs
[0]->addend
= 0;
2993 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2994 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2995 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
2996 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2997 relocs
[1]->addend
= 0;
2998 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2999 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3000 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3001 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3002 relocs
[2]->addend
= 0;
3003 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3004 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3005 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3006 relocs
[3]->addend
= 0;
3007 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3008 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3009 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3010 relocs
[4]->addend
= 0;
3014 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3020 /* For plabel relocations, the addend of the
3021 relocation should be either 0 (no static link) or 2
3022 (static link required).
3024 FIXME: We always assume no static link!
3026 We also slam a zero addend into the DLT relative relocs;
3027 it doesn't make a lot of sense to use any addend since
3028 it gets you a different (eg unknown) DLT entry. */
3029 relocs
[i
]->addend
= 0;
3044 /* There is no symbol or addend associated with these fixups. */
3045 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3046 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3047 relocs
[i
]->addend
= 0;
3053 /* There is no symbol associated with these fixups. */
3054 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3055 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3056 relocs
[i
]->addend
= fixp
->fx_offset
;
3060 relocs
[i
]->addend
= fixp
->fx_offset
;
3070 /* Process any machine dependent frag types. */
3073 md_convert_frag (abfd
, sec
, fragP
)
3075 register asection
*sec
;
3076 register fragS
*fragP
;
3078 unsigned int address
;
3080 if (fragP
->fr_type
== rs_machine_dependent
)
3082 switch ((int) fragP
->fr_subtype
)
3085 fragP
->fr_type
= rs_fill
;
3086 know (fragP
->fr_var
== 1);
3087 know (fragP
->fr_next
);
3088 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3089 if (address
% fragP
->fr_offset
)
3092 fragP
->fr_next
->fr_address
3097 fragP
->fr_offset
= 0;
3103 /* Round up a section size to the appropriate boundary. */
3106 md_section_align (segment
, size
)
3110 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3111 int align2
= (1 << align
) - 1;
3113 return (size
+ align2
) & ~align2
;
3116 /* Return the approximate size of a frag before relaxation has occurred. */
3118 md_estimate_size_before_relax (fragP
, segment
)
3119 register fragS
*fragP
;
3126 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3132 CONST
char *md_shortopts
= "";
3133 struct option md_longopts
[] = {
3134 {NULL
, no_argument
, NULL
, 0}
3136 size_t md_longopts_size
= sizeof(md_longopts
);
3139 md_parse_option (c
, arg
)
3147 md_show_usage (stream
)
3152 /* We have no need to default values of symbols. */
3155 md_undefined_symbol (name
)
3161 /* Apply a fixup to an instruction. */
3164 md_apply_fix (fixP
, valp
)
3168 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3169 struct hppa_fix_struct
*hppa_fixP
;
3170 long new_val
, result
= 0;
3171 unsigned int w1
, w2
, w
, resulti
;
3173 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3174 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3175 never be "applied" (they are just markers). Likewise for
3176 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3178 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3179 || fixP
->fx_r_type
== R_HPPA_EXIT
3180 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3181 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3182 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3185 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3186 fixups are considered not adjustable, which in turn causes
3187 adjust_reloc_syms to not set fx_offset. Ugh. */
3188 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3190 fixP
->fx_offset
= *valp
;
3195 /* There should have been an HPPA specific fixup associated
3196 with the GAS fixup. */
3199 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3200 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3202 /* If there is a symbol associated with this fixup, then it's something
3203 which will need a SOM relocation (except for some PC-relative relocs).
3204 In such cases we should treat the "val" or "addend" as zero since it
3205 will be added in as needed from fx_offset in tc_gen_reloc. */
3206 if ((fixP
->fx_addsy
!= NULL
3207 || fixP
->fx_r_type
== R_HPPA_NONE
)
3212 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3214 /* These field selectors imply that we do not want an addend. */
3215 else if (hppa_fixP
->fx_r_field
== e_psel
3216 || hppa_fixP
->fx_r_field
== e_rpsel
3217 || hppa_fixP
->fx_r_field
== e_lpsel
3218 || hppa_fixP
->fx_r_field
== e_tsel
3219 || hppa_fixP
->fx_r_field
== e_rtsel
3220 || hppa_fixP
->fx_r_field
== e_ltsel
)
3221 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3222 /* This is truely disgusting. The machine independent code blindly
3223 adds in the value of the symbol being relocated against. Damn! */
3225 && fixP
->fx_addsy
!= NULL
3226 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3227 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3228 0, hppa_fixP
->fx_r_field
);
3231 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3233 /* Handle pc-relative exceptions from above. */
3234 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3235 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3236 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3240 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3241 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3242 hppa_fixP
->fx_arg_reloc
)
3244 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3245 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3247 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3249 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3250 #undef arg_reloc_stub_needed
3254 /* Handle all opcodes with the 'j' operand type. */
3256 CHECK_FIELD (new_val
, 8191, -8192, 0);
3258 /* Mask off 14 bits to be changed. */
3259 bfd_put_32 (stdoutput
,
3260 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3262 low_sign_unext (new_val
, 14, &resulti
);
3266 /* Handle all opcodes with the 'k' operand type. */
3268 CHECK_FIELD (new_val
, 2097152, 0, 0);
3270 /* Mask off 21 bits to be changed. */
3271 bfd_put_32 (stdoutput
,
3272 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3274 dis_assemble_21 (new_val
, &resulti
);
3278 /* Handle all the opcodes with the 'i' operand type. */
3280 CHECK_FIELD (new_val
, 1023, -1023, 0);
3282 /* Mask off 11 bits to be changed. */
3283 bfd_put_32 (stdoutput
,
3284 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3286 low_sign_unext (new_val
, 11, &resulti
);
3290 /* Handle all the opcodes with the 'w' operand type. */
3292 CHECK_FIELD (new_val
, 8199, -8184, 0);
3294 /* Mask off 11 bits to be changed. */
3295 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3296 bfd_put_32 (stdoutput
,
3297 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3300 dis_assemble_12 (resulti
, &w1
, &w
);
3301 result
= ((w1
<< 2) | w
);
3304 /* Handle some of the opcodes with the 'W' operand type. */
3307 int distance
= *valp
;
3309 CHECK_FIELD (new_val
, 262143, -262144, 0);
3311 /* If this is an absolute branch (ie no link) with an out of
3312 range target, then we want to complain. */
3313 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3314 && (distance
> 262143 || distance
< -262144)
3315 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3316 CHECK_FIELD (distance
, 262143, -262144, 0);
3318 /* Mask off 17 bits to be changed. */
3319 bfd_put_32 (stdoutput
,
3320 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3322 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3323 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3324 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3330 bfd_put_32 (stdoutput
, new_val
, buf
);
3334 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3338 /* Insert the relocation. */
3339 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3344 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3345 (unsigned int) fixP
, fixP
->fx_r_type
);
3350 /* Exactly what point is a PC-relative offset relative TO?
3351 On the PA, they're relative to the address of the offset. */
3354 md_pcrel_from (fixP
)
3357 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3360 /* Return nonzero if the input line pointer is at the end of
3364 is_end_of_statement ()
3366 return ((*input_line_pointer
== '\n')
3367 || (*input_line_pointer
== ';')
3368 || (*input_line_pointer
== '!'));
3371 /* Read a number from S. The number might come in one of many forms,
3372 the most common will be a hex or decimal constant, but it could be
3373 a pre-defined register (Yuk!), or an absolute symbol.
3375 Return a number or -1 for failure.
3377 When parsing PA-89 FP register numbers RESULT will be
3378 the address of a structure to return information about
3379 L/R half of FP registers, store results there as appropriate.
3381 pa_parse_number can not handle negative constants and will fail
3382 horribly if it is passed such a constant. */
3385 pa_parse_number (s
, result
)
3387 struct pa_11_fp_reg_struct
*result
;
3396 /* Skip whitespace before the number. */
3397 while (*p
== ' ' || *p
== '\t')
3400 /* Store info in RESULT if requested by caller. */
3403 result
->number_part
= -1;
3404 result
->l_r_select
= -1;
3410 /* Looks like a number. */
3413 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3415 /* The number is specified in hex. */
3417 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3418 || ((*p
>= 'A') && (*p
<= 'F')))
3421 num
= num
* 16 + *p
- '0';
3422 else if (*p
>= 'a' && *p
<= 'f')
3423 num
= num
* 16 + *p
- 'a' + 10;
3425 num
= num
* 16 + *p
- 'A' + 10;
3431 /* The number is specified in decimal. */
3432 while (isdigit (*p
))
3434 num
= num
* 10 + *p
- '0';
3439 /* Store info in RESULT if requested by the caller. */
3442 result
->number_part
= num
;
3444 if (IS_R_SELECT (p
))
3446 result
->l_r_select
= 1;
3449 else if (IS_L_SELECT (p
))
3451 result
->l_r_select
= 0;
3455 result
->l_r_select
= 0;
3460 /* The number might be a predefined register. */
3465 /* Tege hack: Special case for general registers as the general
3466 code makes a binary search with case translation, and is VERY
3471 if (*p
== 'e' && *(p
+ 1) == 't'
3472 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3475 num
= *p
- '0' + 28;
3483 else if (!isdigit (*p
))
3486 as_bad (_("Undefined register: '%s'."), name
);
3492 num
= num
* 10 + *p
++ - '0';
3493 while (isdigit (*p
));
3498 /* Do a normal register search. */
3499 while (is_part_of_name (c
))
3505 status
= reg_name_search (name
);
3511 as_bad (_("Undefined register: '%s'."), name
);
3517 /* Store info in RESULT if requested by caller. */
3520 result
->number_part
= num
;
3521 if (IS_R_SELECT (p
- 1))
3522 result
->l_r_select
= 1;
3523 else if (IS_L_SELECT (p
- 1))
3524 result
->l_r_select
= 0;
3526 result
->l_r_select
= 0;
3531 /* And finally, it could be a symbol in the absolute section which
3532 is effectively a constant. */
3536 while (is_part_of_name (c
))
3542 if ((sym
= symbol_find (name
)) != NULL
)
3544 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3545 num
= S_GET_VALUE (sym
);
3549 as_bad (_("Non-absolute symbol: '%s'."), name
);
3555 /* There is where we'd come for an undefined symbol
3556 or for an empty string. For an empty string we
3557 will return zero. That's a concession made for
3558 compatability with the braindamaged HP assemblers. */
3564 as_bad (_("Undefined absolute constant: '%s'."), name
);
3570 /* Store info in RESULT if requested by caller. */
3573 result
->number_part
= num
;
3574 if (IS_R_SELECT (p
- 1))
3575 result
->l_r_select
= 1;
3576 else if (IS_L_SELECT (p
- 1))
3577 result
->l_r_select
= 0;
3579 result
->l_r_select
= 0;
3587 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3589 /* Given NAME, find the register number associated with that name, return
3590 the integer value associated with the given name or -1 on failure. */
3593 reg_name_search (name
)
3596 int middle
, low
, high
;
3600 high
= REG_NAME_CNT
- 1;
3604 middle
= (low
+ high
) / 2;
3605 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
3611 return pre_defined_registers
[middle
].value
;
3613 while (low
<= high
);
3619 /* Return nonzero if the given INSN and L/R information will require
3620 a new PA-1.1 opcode. */
3623 need_pa11_opcode (insn
, result
)
3625 struct pa_11_fp_reg_struct
*result
;
3627 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
3629 /* If this instruction is specific to a particular architecture,
3630 then set a new architecture. */
3631 if (bfd_get_mach (stdoutput
) < pa11
)
3633 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
3634 as_warn (_("could not update architecture and machine"));
3642 /* Parse a condition for a fcmp instruction. Return the numerical
3643 code associated with the condition. */
3646 pa_parse_fp_cmp_cond (s
)
3653 for (i
= 0; i
< 32; i
++)
3655 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
3656 strlen (fp_cond_map
[i
].string
)) == 0)
3658 cond
= fp_cond_map
[i
].cond
;
3659 *s
+= strlen (fp_cond_map
[i
].string
);
3660 /* If not a complete match, back up the input string and
3662 if (**s
!= ' ' && **s
!= '\t')
3664 *s
-= strlen (fp_cond_map
[i
].string
);
3667 while (**s
== ' ' || **s
== '\t')
3673 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
3675 /* Advance over the bogus completer. */
3676 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3683 /* Parse an FP operand format completer returning the completer
3686 static fp_operand_format
3687 pa_parse_fp_format (s
)
3696 if (strncasecmp (*s
, "sgl", 3) == 0)
3701 else if (strncasecmp (*s
, "dbl", 3) == 0)
3706 else if (strncasecmp (*s
, "quad", 4) == 0)
3713 format
= ILLEGAL_FMT
;
3714 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
3721 /* Convert from a selector string into a selector type. */
3724 pa_chk_field_selector (str
)
3727 int middle
, low
, high
;
3731 /* Read past any whitespace. */
3732 /* FIXME: should we read past newlines and formfeeds??? */
3733 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
3736 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
3737 name
[0] = tolower ((*str
)[0]),
3739 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
3740 name
[0] = tolower ((*str
)[0]),
3741 name
[1] = tolower ((*str
)[1]),
3743 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
3744 name
[0] = tolower ((*str
)[0]),
3745 name
[1] = tolower ((*str
)[1]),
3746 name
[2] = tolower ((*str
)[2]),
3752 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
3756 middle
= (low
+ high
) / 2;
3757 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
3764 *str
+= strlen (name
) + 1;
3766 if (selector_table
[middle
].field_selector
== e_nsel
)
3769 return selector_table
[middle
].field_selector
;
3772 while (low
<= high
);
3777 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
3780 get_expression (str
)
3786 save_in
= input_line_pointer
;
3787 input_line_pointer
= str
;
3788 seg
= expression (&the_insn
.exp
);
3789 if (!(seg
== absolute_section
3790 || seg
== undefined_section
3791 || SEG_NORMAL (seg
)))
3793 as_warn (_("Bad segment in expression."));
3794 expr_end
= input_line_pointer
;
3795 input_line_pointer
= save_in
;
3798 expr_end
= input_line_pointer
;
3799 input_line_pointer
= save_in
;
3803 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
3805 pa_get_absolute_expression (insn
, strp
)
3811 insn
->field_selector
= pa_chk_field_selector (strp
);
3812 save_in
= input_line_pointer
;
3813 input_line_pointer
= *strp
;
3814 expression (&insn
->exp
);
3815 /* This is not perfect, but is a huge improvement over doing nothing.
3817 The PA assembly syntax is ambigious in a variety of ways. Consider
3818 this string "4 %r5" Is that the number 4 followed by the register
3819 r5, or is that 4 MOD 5?
3821 If we get a modulo expresion When looking for an absolute, we try
3822 again cutting off the input string at the first whitespace character. */
3823 if (insn
->exp
.X_op
== O_modulus
)
3828 input_line_pointer
= *strp
;
3830 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
3836 retval
= pa_get_absolute_expression (insn
, strp
);
3838 input_line_pointer
= save_in
;
3840 return evaluate_absolute (insn
);
3842 if (insn
->exp
.X_op
!= O_constant
)
3844 as_bad (_("Bad segment (should be absolute)."));
3845 expr_end
= input_line_pointer
;
3846 input_line_pointer
= save_in
;
3849 expr_end
= input_line_pointer
;
3850 input_line_pointer
= save_in
;
3851 return evaluate_absolute (insn
);
3854 /* Evaluate an absolute expression EXP which may be modified by
3855 the selector FIELD_SELECTOR. Return the value of the expression. */
3857 evaluate_absolute (insn
)
3862 int field_selector
= insn
->field_selector
;
3865 value
= exp
.X_add_number
;
3867 switch (field_selector
)
3873 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3875 if (value
& 0x00000400)
3877 value
= (value
& 0xfffff800) >> 11;
3880 /* Sign extend from bit 21. */
3882 if (value
& 0x00000400)
3883 value
|= 0xfffff800;
3888 /* Arithmetic shift right 11 bits. */
3890 value
= (value
& 0xfffff800) >> 11;
3893 /* Set bits 0-20 to zero. */
3895 value
= value
& 0x7ff;
3898 /* Add 0x800 and arithmetic shift right 11 bits. */
3901 value
= (value
& 0xfffff800) >> 11;
3904 /* Set bitgs 0-21 to one. */
3906 value
|= 0xfffff800;
3909 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
3911 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
3915 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
3920 BAD_CASE (field_selector
);
3926 /* Given an argument location specification return the associated
3927 argument location number. */
3930 pa_build_arg_reloc (type_name
)
3934 if (strncasecmp (type_name
, "no", 2) == 0)
3936 if (strncasecmp (type_name
, "gr", 2) == 0)
3938 else if (strncasecmp (type_name
, "fr", 2) == 0)
3940 else if (strncasecmp (type_name
, "fu", 2) == 0)
3943 as_bad (_("Invalid argument location: %s\n"), type_name
);
3948 /* Encode and return an argument relocation specification for
3949 the given register in the location specified by arg_reloc. */
3952 pa_align_arg_reloc (reg
, arg_reloc
)
3954 unsigned int arg_reloc
;
3956 unsigned int new_reloc
;
3958 new_reloc
= arg_reloc
;
3974 as_bad (_("Invalid argument description: %d"), reg
);
3980 /* Parse a PA nullification completer (,n). Return nonzero if the
3981 completer was found; return zero if no completer was found. */
3993 if (strncasecmp (*s
, "n", 1) == 0)
3997 as_bad (_("Invalid Nullification: (%c)"), **s
);
4006 /* Parse a non-negated compare/subtract completer returning the
4007 number (for encoding in instrutions) of the given completer.
4009 ISBRANCH specifies whether or not this is parsing a condition
4010 completer for a branch (vs a nullification completer for a
4011 computational instruction. */
4014 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4019 char *name
= *s
+ 1;
4028 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4034 if (strcmp (name
, "=") == 0)
4038 else if (strcmp (name
, "<") == 0)
4042 else if (strcmp (name
, "<=") == 0)
4046 else if (strcmp (name
, "<<") == 0)
4050 else if (strcmp (name
, "<<=") == 0)
4054 else if (strcasecmp (name
, "sv") == 0)
4058 else if (strcasecmp (name
, "od") == 0)
4062 /* If we have something like addb,n then there is no condition
4064 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4076 /* Reset pointers if this was really a ,n for a branch instruction. */
4084 /* Parse a negated compare/subtract completer returning the
4085 number (for encoding in instrutions) of the given completer.
4087 ISBRANCH specifies whether or not this is parsing a condition
4088 completer for a branch (vs a nullification completer for a
4089 computational instruction. */
4092 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4097 char *name
= *s
+ 1;
4106 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4112 if (strcasecmp (name
, "tr") == 0)
4116 else if (strcmp (name
, "<>") == 0)
4120 else if (strcmp (name
, ">=") == 0)
4124 else if (strcmp (name
, ">") == 0)
4128 else if (strcmp (name
, ">>=") == 0)
4132 else if (strcmp (name
, ">>") == 0)
4136 else if (strcasecmp (name
, "nsv") == 0)
4140 else if (strcasecmp (name
, "ev") == 0)
4144 /* If we have something like addb,n then there is no condition
4146 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4158 /* Reset pointers if this was really a ,n for a branch instruction. */
4167 /* Parse a non-negated addition completer returning the number
4168 (for encoding in instrutions) of the given completer.
4170 ISBRANCH specifies whether or not this is parsing a condition
4171 completer for a branch (vs a nullification completer for a
4172 computational instruction. */
4175 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4180 char *name
= *s
+ 1;
4188 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4192 if (strcmp (name
, "=") == 0)
4196 else if (strcmp (name
, "<") == 0)
4200 else if (strcmp (name
, "<=") == 0)
4204 else if (strcasecmp (name
, "nuv") == 0)
4208 else if (strcasecmp (name
, "znv") == 0)
4212 else if (strcasecmp (name
, "sv") == 0)
4216 else if (strcasecmp (name
, "od") == 0)
4220 /* If we have something like addb,n then there is no condition
4222 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4233 /* Reset pointers if this was really a ,n for a branch instruction. */
4234 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4240 /* Parse a negated addition completer returning the number
4241 (for encoding in instrutions) of the given completer.
4243 ISBRANCH specifies whether or not this is parsing a condition
4244 completer for a branch (vs a nullification completer for a
4245 computational instruction). */
4248 pa_parse_neg_add_cmpltr (s
, isbranch
)
4253 char *name
= *s
+ 1;
4261 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4265 if (strcasecmp (name
, "tr") == 0)
4269 else if (strcmp (name
, "<>") == 0)
4273 else if (strcmp (name
, ">=") == 0)
4277 else if (strcmp (name
, ">") == 0)
4281 else if (strcasecmp (name
, "uv") == 0)
4285 else if (strcasecmp (name
, "vnz") == 0)
4289 else if (strcasecmp (name
, "nsv") == 0)
4293 else if (strcasecmp (name
, "ev") == 0)
4297 /* If we have something like addb,n then there is no condition
4299 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4310 /* Reset pointers if this was really a ,n for a branch instruction. */
4311 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4318 /* Handle an alignment directive. Special so that we can update the
4319 alignment of the subspace if necessary. */
4323 /* We must have a valid space and subspace. */
4324 pa_check_current_space_and_subspace ();
4326 /* Let the generic gas code do most of the work. */
4327 s_align_bytes (bytes
);
4329 /* If bytes is a power of 2, then update the current subspace's
4330 alignment if necessary. */
4331 if (log2 (bytes
) != -1)
4332 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4336 /* Handle a .BLOCK type pseudo-op. */
4344 unsigned int temp_size
;
4348 /* We must have a valid space and subspace. */
4349 pa_check_current_space_and_subspace ();
4352 temp_size
= get_absolute_expression ();
4354 /* Always fill with zeros, that's what the HP assembler does. */
4357 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4358 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4359 memset (p
, 0, temp_size
);
4361 /* Convert 2 bytes at a time. */
4363 for (i
= 0; i
< temp_size
; i
+= 2)
4365 md_number_to_chars (p
+ i
,
4367 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4370 pa_undefine_label ();
4371 demand_empty_rest_of_line ();
4374 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4382 /* The BRTAB relocations are only availble in SOM (to denote
4383 the beginning and end of branch tables). */
4384 char *where
= frag_more (0);
4386 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4387 NULL
, (offsetT
) 0, NULL
,
4388 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4389 e_fsel
, 0, 0, NULL
);
4392 demand_empty_rest_of_line ();
4395 /* Handle a .begin_try and .end_try pseudo-op. */
4403 char *where
= frag_more (0);
4408 /* The TRY relocations are only availble in SOM (to denote
4409 the beginning and end of exception handling regions). */
4411 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4412 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4413 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4414 e_fsel
, 0, 0, NULL
);
4417 demand_empty_rest_of_line ();
4420 /* Handle a .CALL pseudo-op. This involves storing away information
4421 about where arguments are to be found so the linker can detect
4422 (and correct) argument location mismatches between caller and callee. */
4429 /* We must have a valid space and subspace. */
4430 pa_check_current_space_and_subspace ();
4433 pa_call_args (&last_call_desc
);
4434 demand_empty_rest_of_line ();
4437 /* Do the dirty work of building a call descriptor which describes
4438 where the caller placed arguments to a function call. */
4441 pa_call_args (call_desc
)
4442 struct call_desc
*call_desc
;
4445 unsigned int temp
, arg_reloc
;
4447 while (!is_end_of_statement ())
4449 name
= input_line_pointer
;
4450 c
= get_symbol_end ();
4451 /* Process a source argument. */
4452 if ((strncasecmp (name
, "argw", 4) == 0))
4454 temp
= atoi (name
+ 4);
4455 p
= input_line_pointer
;
4457 input_line_pointer
++;
4458 name
= input_line_pointer
;
4459 c
= get_symbol_end ();
4460 arg_reloc
= pa_build_arg_reloc (name
);
4461 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4463 /* Process a return value. */
4464 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4466 p
= input_line_pointer
;
4468 input_line_pointer
++;
4469 name
= input_line_pointer
;
4470 c
= get_symbol_end ();
4471 arg_reloc
= pa_build_arg_reloc (name
);
4472 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4476 as_bad (_("Invalid .CALL argument: %s"), name
);
4478 p
= input_line_pointer
;
4480 if (!is_end_of_statement ())
4481 input_line_pointer
++;
4485 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4488 is_same_frag (frag1
, frag2
)
4495 else if (frag2
== NULL
)
4497 else if (frag1
== frag2
)
4499 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4500 return (is_same_frag (frag1
, frag2
->fr_next
));
4506 /* Build an entry in the UNWIND subspace from the given function
4507 attributes in CALL_INFO. This is not needed for SOM as using
4508 R_ENTRY and R_EXIT relocations allow the linker to handle building
4509 of the unwind spaces. */
4512 pa_build_unwind_subspace (call_info
)
4513 struct call_info
*call_info
;
4517 asection
*seg
, *save_seg
;
4518 subsegT subseg
, save_subseg
;
4522 /* Get into the right seg/subseg. This may involve creating
4523 the seg the first time through. Make sure to have the
4524 old seg/subseg so that we can reset things when we are done. */
4525 subseg
= SUBSEG_UNWIND
;
4526 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4527 if (seg
== ASEC_NULL
)
4529 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4530 bfd_set_section_flags (stdoutput
, seg
,
4531 SEC_READONLY
| SEC_HAS_CONTENTS
4532 | SEC_LOAD
| SEC_RELOC
);
4536 save_subseg
= now_subseg
;
4537 subseg_set (seg
, subseg
);
4540 /* Get some space to hold relocation information for the unwind
4543 md_number_to_chars (p
, 0, 4);
4545 /* Relocation info. for start offset of the function. */
4546 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4547 call_info
->start_symbol
, (offsetT
) 0,
4548 (expressionS
*) NULL
, 0, R_PARISC_DIR32
, e_fsel
, 32, 0, NULL
);
4551 md_number_to_chars (p
, 0, 4);
4553 /* Relocation info. for end offset of the function.
4555 Because we allow reductions of 32bit relocations for ELF, this will be
4556 reduced to section_sym + offset which avoids putting the temporary
4557 symbol into the symbol table. It (should) end up giving the same
4558 value as call_info->start_symbol + function size once the linker is
4559 finished with its work. */
4561 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4562 call_info
->end_symbol
, (offsetT
) 0,
4563 (expressionS
*) NULL
, 0, R_PARISC_DIR32
, e_fsel
, 32, 0, NULL
);
4566 unwind
= (char *) &call_info
->ci_unwind
;
4567 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4571 FRAG_APPEND_1_CHAR (c
);
4575 /* Return back to the original segment/subsegment. */
4576 subseg_set (save_seg
, save_subseg
);
4581 /* Process a .CALLINFO pseudo-op. This information is used later
4582 to build unwind descriptors and maybe one day to support
4583 .ENTER and .LEAVE. */
4586 pa_callinfo (unused
)
4593 /* We must have a valid space and subspace. */
4594 pa_check_current_space_and_subspace ();
4597 /* .CALLINFO must appear within a procedure definition. */
4598 if (!within_procedure
)
4599 as_bad (_(".callinfo is not within a procedure definition"));
4601 /* Mark the fact that we found the .CALLINFO for the
4602 current procedure. */
4603 callinfo_found
= TRUE
;
4605 /* Iterate over the .CALLINFO arguments. */
4606 while (!is_end_of_statement ())
4608 name
= input_line_pointer
;
4609 c
= get_symbol_end ();
4610 /* Frame size specification. */
4611 if ((strncasecmp (name
, "frame", 5) == 0))
4613 p
= input_line_pointer
;
4615 input_line_pointer
++;
4616 temp
= get_absolute_expression ();
4617 if ((temp
& 0x3) != 0)
4619 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
4623 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
4624 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
4627 /* Entry register (GR, GR and SR) specifications. */
4628 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
4630 p
= input_line_pointer
;
4632 input_line_pointer
++;
4633 temp
= get_absolute_expression ();
4634 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4635 even though %r19 is caller saved. I think this is a bug in
4636 the HP assembler, and we are not going to emulate it. */
4637 if (temp
< 3 || temp
> 18)
4638 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
4639 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
4641 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
4643 p
= input_line_pointer
;
4645 input_line_pointer
++;
4646 temp
= get_absolute_expression ();
4647 /* Similarly the HP assembler takes 31 as the high bound even
4648 though %fr21 is the last callee saved floating point register. */
4649 if (temp
< 12 || temp
> 21)
4650 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
4651 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
4653 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
4655 p
= input_line_pointer
;
4657 input_line_pointer
++;
4658 temp
= get_absolute_expression ();
4660 as_bad (_("Value for ENTRY_SR must be 3\n"));
4662 /* Note whether or not this function performs any calls. */
4663 else if ((strncasecmp (name
, "calls", 5) == 0) ||
4664 (strncasecmp (name
, "caller", 6) == 0))
4666 p
= input_line_pointer
;
4669 else if ((strncasecmp (name
, "no_calls", 8) == 0))
4671 p
= input_line_pointer
;
4674 /* Should RP be saved into the stack. */
4675 else if ((strncasecmp (name
, "save_rp", 7) == 0))
4677 p
= input_line_pointer
;
4679 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
4681 /* Likewise for SP. */
4682 else if ((strncasecmp (name
, "save_sp", 7) == 0))
4684 p
= input_line_pointer
;
4686 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
4688 /* Is this an unwindable procedure. If so mark it so
4689 in the unwind descriptor. */
4690 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
4692 p
= input_line_pointer
;
4694 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
4696 /* Is this an interrupt routine. If so mark it in the
4697 unwind descriptor. */
4698 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
4700 p
= input_line_pointer
;
4702 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
4704 /* Is this a millicode routine. "millicode" isn't in my
4705 assembler manual, but my copy is old. The HP assembler
4706 accepts it, and there's a place in the unwind descriptor
4707 to drop the information, so we'll accept it too. */
4708 else if ((strncasecmp (name
, "millicode", 9) == 0))
4710 p
= input_line_pointer
;
4712 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
4716 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
4717 *input_line_pointer
= c
;
4719 if (!is_end_of_statement ())
4720 input_line_pointer
++;
4723 demand_empty_rest_of_line ();
4726 /* Switch into the code subspace. */
4733 current_space
= is_defined_space ("$TEXT$");
4735 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
4738 pa_undefine_label ();
4741 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4742 the .comm pseudo-op has the following symtax:
4744 <label> .comm <length>
4746 where <label> is optional and is a symbol whose address will be the start of
4747 a block of memory <length> bytes long. <length> must be an absolute
4748 expression. <length> bytes will be allocated in the current space
4751 Also note the label may not even be on the same line as the .comm.
4753 This difference in syntax means the colon function will be called
4754 on the symbol before we arrive in pa_comm. colon will set a number
4755 of attributes of the symbol that need to be fixed here. In particular
4756 the value, section pointer, fragment pointer, flags, etc. What
4759 This also makes error detection all but impossible. */
4767 label_symbol_struct
*label_symbol
= pa_get_label ();
4770 symbol
= label_symbol
->lss_label
;
4775 size
= get_absolute_expression ();
4779 S_SET_VALUE (symbol
, size
);
4780 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
4781 S_SET_EXTERNAL (symbol
);
4783 /* colon() has already set the frag to the current location in the
4784 current subspace; we need to reset the fragment to the zero address
4785 fragment. We also need to reset the segment pointer. */
4786 symbol_set_frag (symbol
, &zero_address_frag
);
4788 demand_empty_rest_of_line ();
4791 /* Process a .END pseudo-op. */
4797 demand_empty_rest_of_line ();
4800 /* Process a .ENTER pseudo-op. This is not supported. */
4806 /* We must have a valid space and subspace. */
4807 pa_check_current_space_and_subspace ();
4810 as_bad (_("The .ENTER pseudo-op is not supported"));
4811 demand_empty_rest_of_line ();
4814 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4821 /* We must have a valid space and subspace. */
4822 pa_check_current_space_and_subspace ();
4825 if (!within_procedure
)
4826 as_bad (_("Misplaced .entry. Ignored."));
4829 if (!callinfo_found
)
4830 as_bad (_("Missing .callinfo."));
4832 demand_empty_rest_of_line ();
4833 within_entry_exit
= TRUE
;
4836 /* SOM defers building of unwind descriptors until the link phase.
4837 The assembler is responsible for creating an R_ENTRY relocation
4838 to mark the beginning of a region and hold the unwind bits, and
4839 for creating an R_EXIT relocation to mark the end of the region.
4841 FIXME. ELF should be using the same conventions! The problem
4842 is an unwind requires too much relocation space. Hmmm. Maybe
4843 if we split the unwind bits up between the relocations which
4844 denote the entry and exit points. */
4845 if (last_call_info
->start_symbol
!= NULL
)
4847 char *where
= frag_more (0);
4849 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4850 NULL
, (offsetT
) 0, NULL
,
4851 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
4852 (int *) &last_call_info
->ci_unwind
.descriptor
);
4857 /* Handle a .EQU pseudo-op. */
4863 label_symbol_struct
*label_symbol
= pa_get_label ();
4868 symbol
= label_symbol
->lss_label
;
4870 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
4872 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
4873 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
4878 as_bad (_(".REG must use a label"));
4880 as_bad (_(".EQU must use a label"));
4883 pa_undefine_label ();
4884 demand_empty_rest_of_line ();
4887 /* Helper function. Does processing for the end of a function. This
4888 usually involves creating some relocations or building special
4889 symbols to mark the end of the function. */
4896 where
= frag_more (0);
4899 /* Mark the end of the function, stuff away the location of the frag
4900 for the end of the function, and finally call pa_build_unwind_subspace
4901 to add an entry in the unwind table. */
4902 hppa_elf_mark_end_of_function ();
4903 pa_build_unwind_subspace (last_call_info
);
4905 /* SOM defers building of unwind descriptors until the link phase.
4906 The assembler is responsible for creating an R_ENTRY relocation
4907 to mark the beginning of a region and hold the unwind bits, and
4908 for creating an R_EXIT relocation to mark the end of the region.
4910 FIXME. ELF should be using the same conventions! The problem
4911 is an unwind requires too much relocation space. Hmmm. Maybe
4912 if we split the unwind bits up between the relocations which
4913 denote the entry and exit points. */
4914 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4916 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
4917 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
4921 /* Process a .EXIT pseudo-op. */
4928 /* We must have a valid space and subspace. */
4929 pa_check_current_space_and_subspace ();
4932 if (!within_procedure
)
4933 as_bad (_(".EXIT must appear within a procedure"));
4936 if (!callinfo_found
)
4937 as_bad (_("Missing .callinfo"));
4940 if (!within_entry_exit
)
4941 as_bad (_("No .ENTRY for this .EXIT"));
4944 within_entry_exit
= FALSE
;
4949 demand_empty_rest_of_line ();
4952 /* Process a .EXPORT directive. This makes functions external
4953 and provides information such as argument relocation entries
4963 name
= input_line_pointer
;
4964 c
= get_symbol_end ();
4965 /* Make sure the given symbol exists. */
4966 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
4968 as_bad (_("Cannot define export symbol: %s\n"), name
);
4969 p
= input_line_pointer
;
4971 input_line_pointer
++;
4975 /* OK. Set the external bits and process argument relocations. */
4976 S_SET_EXTERNAL (symbol
);
4977 p
= input_line_pointer
;
4979 if (!is_end_of_statement ())
4981 input_line_pointer
++;
4982 pa_type_args (symbol
, 1);
4986 demand_empty_rest_of_line ();
4989 /* Helper function to process arguments to a .EXPORT pseudo-op. */
4992 pa_type_args (symbolP
, is_export
)
4997 unsigned int temp
, arg_reloc
;
4998 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
4999 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5001 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5004 input_line_pointer
+= 8;
5005 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5006 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5007 type
= SYMBOL_TYPE_ABSOLUTE
;
5009 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5011 input_line_pointer
+= 4;
5012 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5013 instead one should be IMPORTing/EXPORTing ENTRY types.
5015 Complain if one tries to EXPORT a CODE type since that's never
5016 done. Both GCC and HP C still try to IMPORT CODE types, so
5017 silently fix them to be ENTRY types. */
5018 if (S_IS_FUNCTION (symbolP
))
5021 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5022 S_GET_NAME (symbolP
));
5024 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5025 type
= SYMBOL_TYPE_ENTRY
;
5029 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5030 type
= SYMBOL_TYPE_CODE
;
5033 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5035 input_line_pointer
+= 4;
5036 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5037 type
= SYMBOL_TYPE_DATA
;
5039 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5041 input_line_pointer
+= 5;
5042 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5043 type
= SYMBOL_TYPE_ENTRY
;
5045 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5047 input_line_pointer
+= 9;
5048 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5049 type
= SYMBOL_TYPE_MILLICODE
;
5051 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5053 input_line_pointer
+= 6;
5054 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5055 type
= SYMBOL_TYPE_PLABEL
;
5057 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5059 input_line_pointer
+= 8;
5060 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5061 type
= SYMBOL_TYPE_PRI_PROG
;
5063 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5065 input_line_pointer
+= 8;
5066 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5067 type
= SYMBOL_TYPE_SEC_PROG
;
5070 /* SOM requires much more information about symbol types
5071 than BFD understands. This is how we get this information
5072 to the SOM BFD backend. */
5073 #ifdef obj_set_symbol_type
5074 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5077 /* Now that the type of the exported symbol has been handled,
5078 handle any argument relocation information. */
5079 while (!is_end_of_statement ())
5081 if (*input_line_pointer
== ',')
5082 input_line_pointer
++;
5083 name
= input_line_pointer
;
5084 c
= get_symbol_end ();
5085 /* Argument sources. */
5086 if ((strncasecmp (name
, "argw", 4) == 0))
5088 p
= input_line_pointer
;
5090 input_line_pointer
++;
5091 temp
= atoi (name
+ 4);
5092 name
= input_line_pointer
;
5093 c
= get_symbol_end ();
5094 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5096 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5098 *input_line_pointer
= c
;
5100 /* The return value. */
5101 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5103 p
= input_line_pointer
;
5105 input_line_pointer
++;
5106 name
= input_line_pointer
;
5107 c
= get_symbol_end ();
5108 arg_reloc
= pa_build_arg_reloc (name
);
5110 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5112 *input_line_pointer
= c
;
5114 /* Privelege level. */
5115 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5117 p
= input_line_pointer
;
5119 input_line_pointer
++;
5120 temp
= atoi (input_line_pointer
);
5122 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5124 c
= get_symbol_end ();
5125 *input_line_pointer
= c
;
5129 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5130 p
= input_line_pointer
;
5133 if (!is_end_of_statement ())
5134 input_line_pointer
++;
5138 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5139 assembly file must either be defined in the assembly file, or
5140 explicitly IMPORTED from another. */
5149 name
= input_line_pointer
;
5150 c
= get_symbol_end ();
5152 symbol
= symbol_find (name
);
5153 /* Ugh. We might be importing a symbol defined earlier in the file,
5154 in which case all the code below will really screw things up
5155 (set the wrong segment, symbol flags & type, etc). */
5156 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5158 symbol
= symbol_find_or_make (name
);
5159 p
= input_line_pointer
;
5162 if (!is_end_of_statement ())
5164 input_line_pointer
++;
5165 pa_type_args (symbol
, 0);
5169 /* Sigh. To be compatable with the HP assembler and to help
5170 poorly written assembly code, we assign a type based on
5171 the the current segment. Note only BSF_FUNCTION really
5172 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5173 if (now_seg
== text_section
)
5174 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5176 /* If the section is undefined, then the symbol is undefined
5177 Since this is an import, leave the section undefined. */
5178 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5183 /* The symbol was already defined. Just eat everything up to
5184 the end of the current statement. */
5185 while (!is_end_of_statement ())
5186 input_line_pointer
++;
5189 demand_empty_rest_of_line ();
5192 /* Handle a .LABEL pseudo-op. */
5200 name
= input_line_pointer
;
5201 c
= get_symbol_end ();
5203 if (strlen (name
) > 0)
5206 p
= input_line_pointer
;
5211 as_warn (_("Missing label name on .LABEL"));
5214 if (!is_end_of_statement ())
5216 as_warn (_("extra .LABEL arguments ignored."));
5217 ignore_rest_of_line ();
5219 demand_empty_rest_of_line ();
5222 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5229 /* We must have a valid space and subspace. */
5230 pa_check_current_space_and_subspace ();
5233 as_bad (_("The .LEAVE pseudo-op is not supported"));
5234 demand_empty_rest_of_line ();
5237 /* Handle a .LEVEL pseudo-op. */
5245 level
= input_line_pointer
;
5246 if (strncmp (level
, "1.0", 3) == 0)
5248 input_line_pointer
+= 3;
5249 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5250 as_warn (_("could not set architecture and machine"));
5252 else if (strncmp (level
, "1.1", 3) == 0)
5254 input_line_pointer
+= 3;
5255 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5256 as_warn (_("could not set architecture and machine"));
5258 else if (strncmp (level
, "2.0", 3) == 0)
5260 input_line_pointer
+= 3;
5261 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5262 as_warn (_("could not set architecture and machine"));
5266 as_bad (_("Unrecognized .LEVEL argument\n"));
5267 ignore_rest_of_line ();
5269 demand_empty_rest_of_line ();
5272 /* Handle a .ORIGIN pseudo-op. */
5279 /* We must have a valid space and subspace. */
5280 pa_check_current_space_and_subspace ();
5284 pa_undefine_label ();
5287 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5288 is for static functions. FIXME. Should share more code with .EXPORT. */
5297 name
= input_line_pointer
;
5298 c
= get_symbol_end ();
5300 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5302 as_bad (_("Cannot define static symbol: %s\n"), name
);
5303 p
= input_line_pointer
;
5305 input_line_pointer
++;
5309 S_CLEAR_EXTERNAL (symbol
);
5310 p
= input_line_pointer
;
5312 if (!is_end_of_statement ())
5314 input_line_pointer
++;
5315 pa_type_args (symbol
, 0);
5319 demand_empty_rest_of_line ();
5322 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5323 of a procedure from a syntatical point of view. */
5329 struct call_info
*call_info
;
5332 /* We must have a valid space and subspace. */
5333 pa_check_current_space_and_subspace ();
5336 if (within_procedure
)
5337 as_fatal (_("Nested procedures"));
5339 /* Reset global variables for new procedure. */
5340 callinfo_found
= FALSE
;
5341 within_procedure
= TRUE
;
5343 /* Create another call_info structure. */
5344 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5347 as_fatal (_("Cannot allocate unwind descriptor\n"));
5349 memset (call_info
, 0, sizeof (struct call_info
));
5351 call_info
->ci_next
= NULL
;
5353 if (call_info_root
== NULL
)
5355 call_info_root
= call_info
;
5356 last_call_info
= call_info
;
5360 last_call_info
->ci_next
= call_info
;
5361 last_call_info
= call_info
;
5364 /* set up defaults on call_info structure */
5366 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5367 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5368 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5370 /* If we got a .PROC pseudo-op, we know that the function is defined
5371 locally. Make sure it gets into the symbol table. */
5373 label_symbol_struct
*label_symbol
= pa_get_label ();
5377 if (label_symbol
->lss_label
)
5379 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5380 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5383 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5386 last_call_info
->start_symbol
= NULL
;
5389 demand_empty_rest_of_line ();
5392 /* Process the syntatical end of a procedure. Make sure all the
5393 appropriate pseudo-ops were found within the procedure. */
5401 /* We must have a valid space and subspace. */
5402 pa_check_current_space_and_subspace ();
5405 /* If we are within a procedure definition, make sure we've
5406 defined a label for the procedure; handle case where the
5407 label was defined after the .PROC directive.
5409 Note there's not need to diddle with the segment or fragment
5410 for the label symbol in this case. We have already switched
5411 into the new $CODE$ subspace at this point. */
5412 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5414 label_symbol_struct
*label_symbol
= pa_get_label ();
5418 if (label_symbol
->lss_label
)
5420 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5421 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5424 /* Also handle allocation of a fixup to hold the unwind
5425 information when the label appears after the proc/procend. */
5426 if (within_entry_exit
)
5428 char *where
= frag_more (0);
5430 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5431 NULL
, (offsetT
) 0, NULL
,
5432 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5433 (int *) &last_call_info
->ci_unwind
.descriptor
);
5438 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5441 as_bad (_("Missing function name for .PROC"));
5444 if (!within_procedure
)
5445 as_bad (_("misplaced .procend"));
5447 if (!callinfo_found
)
5448 as_bad (_("Missing .callinfo for this procedure"));
5450 if (within_entry_exit
)
5451 as_bad (_("Missing .EXIT for a .ENTRY"));
5454 /* ELF needs to mark the end of each function so that it can compute
5455 the size of the function (apparently its needed in the symbol table). */
5456 hppa_elf_mark_end_of_function ();
5459 within_procedure
= FALSE
;
5460 demand_empty_rest_of_line ();
5461 pa_undefine_label ();
5464 /* If VALUE is an exact power of two between zero and 2^31, then
5465 return log2 (VALUE). Else return -1. */
5473 while ((1 << shift
) != value
&& shift
< 32)
5484 /* Check to make sure we have a valid space and subspace. */
5487 pa_check_current_space_and_subspace ()
5489 if (current_space
== NULL
)
5490 as_fatal (_("Not in a space.\n"));
5492 if (current_subspace
== NULL
)
5493 as_fatal (_("Not in a subspace.\n"));
5496 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5497 then create a new space entry to hold the information specified
5498 by the parameters to the .SPACE directive. */
5500 static sd_chain_struct
*
5501 pa_parse_space_stmt (space_name
, create_flag
)
5505 char *name
, *ptemp
, c
;
5506 char loadable
, defined
, private, sort
;
5508 asection
*seg
= NULL
;
5509 sd_chain_struct
*space
;
5511 /* load default values */
5517 if (strcmp (space_name
, "$TEXT$") == 0)
5519 seg
= pa_def_spaces
[0].segment
;
5520 defined
= pa_def_spaces
[0].defined
;
5521 private = pa_def_spaces
[0].private;
5522 sort
= pa_def_spaces
[0].sort
;
5523 spnum
= pa_def_spaces
[0].spnum
;
5525 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5527 seg
= pa_def_spaces
[1].segment
;
5528 defined
= pa_def_spaces
[1].defined
;
5529 private = pa_def_spaces
[1].private;
5530 sort
= pa_def_spaces
[1].sort
;
5531 spnum
= pa_def_spaces
[1].spnum
;
5534 if (!is_end_of_statement ())
5536 print_errors
= FALSE
;
5537 ptemp
= input_line_pointer
+ 1;
5538 /* First see if the space was specified as a number rather than
5539 as a name. According to the PA assembly manual the rest of
5540 the line should be ignored. */
5541 temp
= pa_parse_number (&ptemp
, 0);
5545 input_line_pointer
= ptemp
;
5549 while (!is_end_of_statement ())
5551 input_line_pointer
++;
5552 name
= input_line_pointer
;
5553 c
= get_symbol_end ();
5554 if ((strncasecmp (name
, "spnum", 5) == 0))
5556 *input_line_pointer
= c
;
5557 input_line_pointer
++;
5558 spnum
= get_absolute_expression ();
5560 else if ((strncasecmp (name
, "sort", 4) == 0))
5562 *input_line_pointer
= c
;
5563 input_line_pointer
++;
5564 sort
= get_absolute_expression ();
5566 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5568 *input_line_pointer
= c
;
5571 else if ((strncasecmp (name
, "notdefined", 10) == 0))
5573 *input_line_pointer
= c
;
5576 else if ((strncasecmp (name
, "private", 7) == 0))
5578 *input_line_pointer
= c
;
5583 as_bad (_("Invalid .SPACE argument"));
5584 *input_line_pointer
= c
;
5585 if (!is_end_of_statement ())
5586 input_line_pointer
++;
5590 print_errors
= TRUE
;
5593 if (create_flag
&& seg
== NULL
)
5594 seg
= subseg_new (space_name
, 0);
5596 /* If create_flag is nonzero, then create the new space with
5597 the attributes computed above. Else set the values in
5598 an already existing space -- this can only happen for
5599 the first occurence of a built-in space. */
5601 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
5602 private, sort
, seg
, 1);
5605 space
= is_defined_space (space_name
);
5606 SPACE_SPNUM (space
) = spnum
;
5607 SPACE_DEFINED (space
) = defined
& 1;
5608 SPACE_USER_DEFINED (space
) = 1;
5611 #ifdef obj_set_section_attributes
5612 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
5618 /* Handle a .SPACE pseudo-op; this switches the current space to the
5619 given space, creating the new space if necessary. */
5625 char *name
, c
, *space_name
, *save_s
;
5627 sd_chain_struct
*sd_chain
;
5629 if (within_procedure
)
5631 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
5632 ignore_rest_of_line ();
5636 /* Check for some of the predefined spaces. FIXME: most of the code
5637 below is repeated several times, can we extract the common parts
5638 and place them into a subroutine or something similar? */
5639 /* FIXME Is this (and the next IF stmt) really right?
5640 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5641 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
5643 input_line_pointer
+= 6;
5644 sd_chain
= is_defined_space ("$TEXT$");
5645 if (sd_chain
== NULL
)
5646 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
5647 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5648 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
5650 current_space
= sd_chain
;
5651 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
5653 = pa_subsegment_to_subspace (text_section
,
5654 sd_chain
->sd_last_subseg
);
5655 demand_empty_rest_of_line ();
5658 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
5660 input_line_pointer
+= 9;
5661 sd_chain
= is_defined_space ("$PRIVATE$");
5662 if (sd_chain
== NULL
)
5663 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
5664 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5665 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
5667 current_space
= sd_chain
;
5668 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
5670 = pa_subsegment_to_subspace (data_section
,
5671 sd_chain
->sd_last_subseg
);
5672 demand_empty_rest_of_line ();
5675 if (!strncasecmp (input_line_pointer
,
5676 GDB_DEBUG_SPACE_NAME
,
5677 strlen (GDB_DEBUG_SPACE_NAME
)))
5679 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
5680 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
5681 if (sd_chain
== NULL
)
5682 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
5683 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5684 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
5686 current_space
= sd_chain
;
5689 asection
*gdb_section
5690 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
5692 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
5694 = pa_subsegment_to_subspace (gdb_section
,
5695 sd_chain
->sd_last_subseg
);
5697 demand_empty_rest_of_line ();
5701 /* It could be a space specified by number. */
5703 save_s
= input_line_pointer
;
5704 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
5706 if ((sd_chain
= pa_find_space_by_number (temp
)))
5708 current_space
= sd_chain
;
5710 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5712 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5713 sd_chain
->sd_last_subseg
);
5714 demand_empty_rest_of_line ();
5719 /* Not a number, attempt to create a new space. */
5721 input_line_pointer
= save_s
;
5722 name
= input_line_pointer
;
5723 c
= get_symbol_end ();
5724 space_name
= xmalloc (strlen (name
) + 1);
5725 strcpy (space_name
, name
);
5726 *input_line_pointer
= c
;
5728 sd_chain
= pa_parse_space_stmt (space_name
, 1);
5729 current_space
= sd_chain
;
5731 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5732 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5733 sd_chain
->sd_last_subseg
);
5734 demand_empty_rest_of_line ();
5738 /* Switch to a new space. (I think). FIXME. */
5747 sd_chain_struct
*space
;
5749 name
= input_line_pointer
;
5750 c
= get_symbol_end ();
5751 space
= is_defined_space (name
);
5755 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
5758 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
5760 *input_line_pointer
= c
;
5761 demand_empty_rest_of_line ();
5764 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
5765 given subspace, creating the new subspace if necessary.
5767 FIXME. Should mirror pa_space more closely, in particular how
5768 they're broken up into subroutines. */
5771 pa_subspace (create_new
)
5774 char *name
, *ss_name
, c
;
5775 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
5776 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
5777 sd_chain_struct
*space
;
5778 ssd_chain_struct
*ssd
;
5781 if (current_space
== NULL
)
5782 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
5784 if (within_procedure
)
5786 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
5787 ignore_rest_of_line ();
5791 name
= input_line_pointer
;
5792 c
= get_symbol_end ();
5793 ss_name
= xmalloc (strlen (name
) + 1);
5794 strcpy (ss_name
, name
);
5795 *input_line_pointer
= c
;
5797 /* Load default values. */
5809 space
= current_space
;
5813 ssd
= is_defined_subspace (ss_name
);
5814 /* Allow user to override the builtin attributes of subspaces. But
5815 only allow the attributes to be changed once! */
5816 if (ssd
&& SUBSPACE_DEFINED (ssd
))
5818 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
5819 current_subspace
= ssd
;
5820 if (!is_end_of_statement ())
5821 as_warn (_("Parameters of an existing subspace can\'t be modified"));
5822 demand_empty_rest_of_line ();
5827 /* A new subspace. Load default values if it matches one of
5828 the builtin subspaces. */
5830 while (pa_def_subspaces
[i
].name
)
5832 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
5834 loadable
= pa_def_subspaces
[i
].loadable
;
5835 common
= pa_def_subspaces
[i
].common
;
5836 dup_common
= pa_def_subspaces
[i
].dup_common
;
5837 code_only
= pa_def_subspaces
[i
].code_only
;
5838 zero
= pa_def_subspaces
[i
].zero
;
5839 space_index
= pa_def_subspaces
[i
].space_index
;
5840 alignment
= pa_def_subspaces
[i
].alignment
;
5841 quadrant
= pa_def_subspaces
[i
].quadrant
;
5842 access
= pa_def_subspaces
[i
].access
;
5843 sort
= pa_def_subspaces
[i
].sort
;
5850 /* We should be working with a new subspace now. Fill in
5851 any information as specified by the user. */
5852 if (!is_end_of_statement ())
5854 input_line_pointer
++;
5855 while (!is_end_of_statement ())
5857 name
= input_line_pointer
;
5858 c
= get_symbol_end ();
5859 if ((strncasecmp (name
, "quad", 4) == 0))
5861 *input_line_pointer
= c
;
5862 input_line_pointer
++;
5863 quadrant
= get_absolute_expression ();
5865 else if ((strncasecmp (name
, "align", 5) == 0))
5867 *input_line_pointer
= c
;
5868 input_line_pointer
++;
5869 alignment
= get_absolute_expression ();
5870 if (log2 (alignment
) == -1)
5872 as_bad (_("Alignment must be a power of 2"));
5876 else if ((strncasecmp (name
, "access", 6) == 0))
5878 *input_line_pointer
= c
;
5879 input_line_pointer
++;
5880 access
= get_absolute_expression ();
5882 else if ((strncasecmp (name
, "sort", 4) == 0))
5884 *input_line_pointer
= c
;
5885 input_line_pointer
++;
5886 sort
= get_absolute_expression ();
5888 else if ((strncasecmp (name
, "code_only", 9) == 0))
5890 *input_line_pointer
= c
;
5893 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5895 *input_line_pointer
= c
;
5898 else if ((strncasecmp (name
, "common", 6) == 0))
5900 *input_line_pointer
= c
;
5903 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
5905 *input_line_pointer
= c
;
5908 else if ((strncasecmp (name
, "zero", 4) == 0))
5910 *input_line_pointer
= c
;
5913 else if ((strncasecmp (name
, "first", 5) == 0))
5914 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
5916 as_bad (_("Invalid .SUBSPACE argument"));
5917 if (!is_end_of_statement ())
5918 input_line_pointer
++;
5922 /* Compute a reasonable set of BFD flags based on the information
5923 in the .subspace directive. */
5924 applicable
= bfd_applicable_section_flags (stdoutput
);
5927 flags
|= (SEC_ALLOC
| SEC_LOAD
);
5930 if (common
|| dup_common
)
5931 flags
|= SEC_IS_COMMON
;
5933 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
5935 /* This is a zero-filled subspace (eg BSS). */
5937 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
5939 applicable
&= flags
;
5941 /* If this is an existing subspace, then we want to use the
5942 segment already associated with the subspace.
5944 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5945 lots of sections. It might be a problem in the PA ELF
5946 code, I do not know yet. For now avoid creating anything
5947 but the "standard" sections for ELF. */
5949 section
= subseg_force_new (ss_name
, 0);
5951 section
= ssd
->ssd_seg
;
5953 section
= subseg_new (ss_name
, 0);
5956 seg_info (section
)->bss
= 1;
5958 /* Now set the flags. */
5959 bfd_set_section_flags (stdoutput
, section
, applicable
);
5961 /* Record any alignment request for this section. */
5962 record_alignment (section
, log2 (alignment
));
5964 /* Set the starting offset for this section. */
5965 bfd_set_section_vma (stdoutput
, section
,
5966 pa_subspace_start (space
, quadrant
));
5968 /* Now that all the flags are set, update an existing subspace,
5969 or create a new one. */
5972 current_subspace
= update_subspace (space
, ss_name
, loadable
,
5973 code_only
, common
, dup_common
,
5974 sort
, zero
, access
, space_index
,
5975 alignment
, quadrant
,
5978 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
5980 dup_common
, zero
, sort
,
5981 access
, space_index
,
5982 alignment
, quadrant
, section
);
5984 demand_empty_rest_of_line ();
5985 current_subspace
->ssd_seg
= section
;
5986 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
5988 SUBSPACE_DEFINED (current_subspace
) = 1;
5992 /* Create default space and subspace dictionaries. */
5999 space_dict_root
= NULL
;
6000 space_dict_last
= NULL
;
6003 while (pa_def_spaces
[i
].name
)
6007 /* Pick the right name to use for the new section. */
6008 name
= pa_def_spaces
[i
].name
;
6010 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6011 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6012 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6013 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6014 pa_def_spaces
[i
].segment
, 0);
6019 while (pa_def_subspaces
[i
].name
)
6022 int applicable
, subsegment
;
6023 asection
*segment
= NULL
;
6024 sd_chain_struct
*space
;
6026 /* Pick the right name for the new section and pick the right
6027 subsegment number. */
6028 name
= pa_def_subspaces
[i
].name
;
6031 /* Create the new section. */
6032 segment
= subseg_new (name
, subsegment
);
6035 /* For SOM we want to replace the standard .text, .data, and .bss
6036 sections with our own. We also want to set BFD flags for
6037 all the built-in subspaces. */
6038 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6040 text_section
= segment
;
6041 applicable
= bfd_applicable_section_flags (stdoutput
);
6042 bfd_set_section_flags (stdoutput
, segment
,
6043 applicable
& (SEC_ALLOC
| SEC_LOAD
6044 | SEC_RELOC
| SEC_CODE
6046 | SEC_HAS_CONTENTS
));
6048 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6050 data_section
= segment
;
6051 applicable
= bfd_applicable_section_flags (stdoutput
);
6052 bfd_set_section_flags (stdoutput
, segment
,
6053 applicable
& (SEC_ALLOC
| SEC_LOAD
6055 | SEC_HAS_CONTENTS
));
6059 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6061 bss_section
= segment
;
6062 applicable
= bfd_applicable_section_flags (stdoutput
);
6063 bfd_set_section_flags (stdoutput
, segment
,
6064 applicable
& SEC_ALLOC
);
6066 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6068 applicable
= bfd_applicable_section_flags (stdoutput
);
6069 bfd_set_section_flags (stdoutput
, segment
,
6070 applicable
& (SEC_ALLOC
| SEC_LOAD
6073 | SEC_HAS_CONTENTS
));
6075 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6077 applicable
= bfd_applicable_section_flags (stdoutput
);
6078 bfd_set_section_flags (stdoutput
, segment
,
6079 applicable
& (SEC_ALLOC
| SEC_LOAD
6082 | SEC_HAS_CONTENTS
));
6084 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6086 applicable
= bfd_applicable_section_flags (stdoutput
);
6087 bfd_set_section_flags (stdoutput
, segment
,
6088 applicable
& (SEC_ALLOC
| SEC_LOAD
6091 | SEC_HAS_CONTENTS
));
6094 /* Find the space associated with this subspace. */
6095 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6096 def_space_index
].segment
);
6099 as_fatal (_("Internal error: Unable to find containing space for %s."),
6100 pa_def_subspaces
[i
].name
);
6103 create_new_subspace (space
, name
,
6104 pa_def_subspaces
[i
].loadable
,
6105 pa_def_subspaces
[i
].code_only
,
6106 pa_def_subspaces
[i
].common
,
6107 pa_def_subspaces
[i
].dup_common
,
6108 pa_def_subspaces
[i
].zero
,
6109 pa_def_subspaces
[i
].sort
,
6110 pa_def_subspaces
[i
].access
,
6111 pa_def_subspaces
[i
].space_index
,
6112 pa_def_subspaces
[i
].alignment
,
6113 pa_def_subspaces
[i
].quadrant
,
6121 /* Create a new space NAME, with the appropriate flags as defined
6122 by the given parameters. */
6124 static sd_chain_struct
*
6125 create_new_space (name
, spnum
, loadable
, defined
, private,
6126 sort
, seg
, user_defined
)
6136 sd_chain_struct
*chain_entry
;
6138 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6140 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6143 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6144 strcpy (SPACE_NAME (chain_entry
), name
);
6145 SPACE_DEFINED (chain_entry
) = defined
;
6146 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6147 SPACE_SPNUM (chain_entry
) = spnum
;
6149 chain_entry
->sd_seg
= seg
;
6150 chain_entry
->sd_last_subseg
= -1;
6151 chain_entry
->sd_subspaces
= NULL
;
6152 chain_entry
->sd_next
= NULL
;
6154 /* Find spot for the new space based on its sort key. */
6155 if (!space_dict_last
)
6156 space_dict_last
= chain_entry
;
6158 if (space_dict_root
== NULL
)
6159 space_dict_root
= chain_entry
;
6162 sd_chain_struct
*chain_pointer
;
6163 sd_chain_struct
*prev_chain_pointer
;
6165 chain_pointer
= space_dict_root
;
6166 prev_chain_pointer
= NULL
;
6168 while (chain_pointer
)
6170 prev_chain_pointer
= chain_pointer
;
6171 chain_pointer
= chain_pointer
->sd_next
;
6174 /* At this point we've found the correct place to add the new
6175 entry. So add it and update the linked lists as appropriate. */
6176 if (prev_chain_pointer
)
6178 chain_entry
->sd_next
= chain_pointer
;
6179 prev_chain_pointer
->sd_next
= chain_entry
;
6183 space_dict_root
= chain_entry
;
6184 chain_entry
->sd_next
= chain_pointer
;
6187 if (chain_entry
->sd_next
== NULL
)
6188 space_dict_last
= chain_entry
;
6191 /* This is here to catch predefined spaces which do not get
6192 modified by the user's input. Another call is found at
6193 the bottom of pa_parse_space_stmt to handle cases where
6194 the user modifies a predefined space. */
6195 #ifdef obj_set_section_attributes
6196 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6202 /* Create a new subspace NAME, with the appropriate flags as defined
6203 by the given parameters.
6205 Add the new subspace to the subspace dictionary chain in numerical
6206 order as defined by the SORT entries. */
6208 static ssd_chain_struct
*
6209 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6210 dup_common
, is_zero
, sort
, access
, space_index
,
6211 alignment
, quadrant
, seg
)
6212 sd_chain_struct
*space
;
6214 int loadable
, code_only
, common
, dup_common
, is_zero
;
6222 ssd_chain_struct
*chain_entry
;
6224 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6226 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6228 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6229 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6231 /* Initialize subspace_defined. When we hit a .subspace directive
6232 we'll set it to 1 which "locks-in" the subspace attributes. */
6233 SUBSPACE_DEFINED (chain_entry
) = 0;
6235 chain_entry
->ssd_subseg
= 0;
6236 chain_entry
->ssd_seg
= seg
;
6237 chain_entry
->ssd_next
= NULL
;
6239 /* Find spot for the new subspace based on its sort key. */
6240 if (space
->sd_subspaces
== NULL
)
6241 space
->sd_subspaces
= chain_entry
;
6244 ssd_chain_struct
*chain_pointer
;
6245 ssd_chain_struct
*prev_chain_pointer
;
6247 chain_pointer
= space
->sd_subspaces
;
6248 prev_chain_pointer
= NULL
;
6250 while (chain_pointer
)
6252 prev_chain_pointer
= chain_pointer
;
6253 chain_pointer
= chain_pointer
->ssd_next
;
6256 /* Now we have somewhere to put the new entry. Insert it and update
6258 if (prev_chain_pointer
)
6260 chain_entry
->ssd_next
= chain_pointer
;
6261 prev_chain_pointer
->ssd_next
= chain_entry
;
6265 space
->sd_subspaces
= chain_entry
;
6266 chain_entry
->ssd_next
= chain_pointer
;
6270 #ifdef obj_set_subsection_attributes
6271 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6278 /* Update the information for the given subspace based upon the
6279 various arguments. Return the modified subspace chain entry. */
6281 static ssd_chain_struct
*
6282 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6283 zero
, access
, space_index
, alignment
, quadrant
, section
)
6284 sd_chain_struct
*space
;
6298 ssd_chain_struct
*chain_entry
;
6300 chain_entry
= is_defined_subspace (name
);
6302 #ifdef obj_set_subsection_attributes
6303 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6310 /* Return the space chain entry for the space with the name NAME or
6311 NULL if no such space exists. */
6313 static sd_chain_struct
*
6314 is_defined_space (name
)
6317 sd_chain_struct
*chain_pointer
;
6319 for (chain_pointer
= space_dict_root
;
6321 chain_pointer
= chain_pointer
->sd_next
)
6323 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6324 return chain_pointer
;
6327 /* No mapping from segment to space was found. Return NULL. */
6331 /* Find and return the space associated with the given seg. If no mapping
6332 from the given seg to a space is found, then return NULL.
6334 Unlike subspaces, the number of spaces is not expected to grow much,
6335 so a linear exhaustive search is OK here. */
6337 static sd_chain_struct
*
6338 pa_segment_to_space (seg
)
6341 sd_chain_struct
*space_chain
;
6343 /* Walk through each space looking for the correct mapping. */
6344 for (space_chain
= space_dict_root
;
6346 space_chain
= space_chain
->sd_next
)
6348 if (space_chain
->sd_seg
== seg
)
6352 /* Mapping was not found. Return NULL. */
6356 /* Return the space chain entry for the subspace with the name NAME or
6357 NULL if no such subspace exists.
6359 Uses a linear search through all the spaces and subspaces, this may
6360 not be appropriate if we ever being placing each function in its
6363 static ssd_chain_struct
*
6364 is_defined_subspace (name
)
6367 sd_chain_struct
*space_chain
;
6368 ssd_chain_struct
*subspace_chain
;
6370 /* Walk through each space. */
6371 for (space_chain
= space_dict_root
;
6373 space_chain
= space_chain
->sd_next
)
6375 /* Walk through each subspace looking for a name which matches. */
6376 for (subspace_chain
= space_chain
->sd_subspaces
;
6378 subspace_chain
= subspace_chain
->ssd_next
)
6379 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6380 return subspace_chain
;
6383 /* Subspace wasn't found. Return NULL. */
6387 /* Find and return the subspace associated with the given seg. If no
6388 mapping from the given seg to a subspace is found, then return NULL.
6390 If we ever put each procedure/function within its own subspace
6391 (to make life easier on the compiler and linker), then this will have
6392 to become more efficient. */
6394 static ssd_chain_struct
*
6395 pa_subsegment_to_subspace (seg
, subseg
)
6399 sd_chain_struct
*space_chain
;
6400 ssd_chain_struct
*subspace_chain
;
6402 /* Walk through each space. */
6403 for (space_chain
= space_dict_root
;
6405 space_chain
= space_chain
->sd_next
)
6407 if (space_chain
->sd_seg
== seg
)
6409 /* Walk through each subspace within each space looking for
6410 the correct mapping. */
6411 for (subspace_chain
= space_chain
->sd_subspaces
;
6413 subspace_chain
= subspace_chain
->ssd_next
)
6414 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6415 return subspace_chain
;
6419 /* No mapping from subsegment to subspace found. Return NULL. */
6423 /* Given a number, try and find a space with the name number.
6425 Return a pointer to a space dictionary chain entry for the space
6426 that was found or NULL on failure. */
6428 static sd_chain_struct
*
6429 pa_find_space_by_number (number
)
6432 sd_chain_struct
*space_chain
;
6434 for (space_chain
= space_dict_root
;
6436 space_chain
= space_chain
->sd_next
)
6438 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6442 /* No appropriate space found. Return NULL. */
6446 /* Return the starting address for the given subspace. If the starting
6447 address is unknown then return zero. */
6450 pa_subspace_start (space
, quadrant
)
6451 sd_chain_struct
*space
;
6454 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6455 is not correct for the PA OSF1 port. */
6456 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6458 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6465 /* FIXME. Needs documentation. */
6467 pa_next_subseg (space
)
6468 sd_chain_struct
*space
;
6471 space
->sd_last_subseg
++;
6472 return space
->sd_last_subseg
;
6476 /* Helper function for pa_stringer. Used to find the end of
6483 unsigned int c
= *s
& CHAR_MASK
;
6486 /* We must have a valid space and subspace. */
6487 pa_check_current_space_and_subspace ();
6501 /* Handle a .STRING type pseudo-op. */
6504 pa_stringer (append_zero
)
6507 char *s
, num_buf
[4];
6511 /* Preprocess the string to handle PA-specific escape sequences.
6512 For example, \xDD where DD is a hexidecimal number should be
6513 changed to \OOO where OOO is an octal number. */
6515 /* Skip the opening quote. */
6516 s
= input_line_pointer
+ 1;
6518 while (is_a_char (c
= pa_stringer_aux (s
++)))
6525 /* Handle \x<num>. */
6528 unsigned int number
;
6533 /* Get pas the 'x'. */
6535 for (num_digit
= 0, number
= 0, dg
= *s
;
6537 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6538 || (dg
>= 'A' && dg
<= 'F'));
6542 number
= number
* 16 + dg
- '0';
6543 else if (dg
>= 'a' && dg
<= 'f')
6544 number
= number
* 16 + dg
- 'a' + 10;
6546 number
= number
* 16 + dg
- 'A' + 10;
6556 sprintf (num_buf
, "%02o", number
);
6559 sprintf (num_buf
, "%03o", number
);
6562 for (i
= 0; i
<= num_digit
; i
++)
6563 s_start
[i
] = num_buf
[i
];
6567 /* This might be a "\"", skip over the escaped char. */
6574 stringer (append_zero
);
6575 pa_undefine_label ();
6578 /* Handle a .VERSION pseudo-op. */
6585 pa_undefine_label ();
6590 /* Handle a .COMPILER pseudo-op. */
6593 pa_compiler (unused
)
6596 obj_som_compiler (0);
6597 pa_undefine_label ();
6602 /* Handle a .COPYRIGHT pseudo-op. */
6605 pa_copyright (unused
)
6609 pa_undefine_label ();
6612 /* Just like a normal cons, but when finished we have to undefine
6613 the latest space label. */
6620 pa_undefine_label ();
6623 /* Switch to the data space. As usual delete our label. */
6630 current_space
= is_defined_space ("$PRIVATE$");
6632 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6635 pa_undefine_label ();
6638 /* Like float_cons, but we need to undefine our label. */
6641 pa_float_cons (float_type
)
6644 float_cons (float_type
);
6645 pa_undefine_label ();
6648 /* Like s_fill, but delete our label when finished. */
6655 /* We must have a valid space and subspace. */
6656 pa_check_current_space_and_subspace ();
6660 pa_undefine_label ();
6663 /* Like lcomm, but delete our label when finished. */
6666 pa_lcomm (needs_align
)
6670 /* We must have a valid space and subspace. */
6671 pa_check_current_space_and_subspace ();
6674 s_lcomm (needs_align
);
6675 pa_undefine_label ();
6678 /* Like lsym, but delete our label when finished. */
6685 /* We must have a valid space and subspace. */
6686 pa_check_current_space_and_subspace ();
6690 pa_undefine_label ();
6693 /* Switch to the text space. Like s_text, but delete our
6694 label when finished. */
6700 current_space
= is_defined_space ("$TEXT$");
6702 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6706 pa_undefine_label ();
6709 /* On the PA relocations which involve function symbols must not be
6710 adjusted. This so that the linker can know when/how to create argument
6711 relocation stubs for indirect calls and calls to static functions.
6713 "T" field selectors create DLT relative fixups for accessing
6714 globals and statics in PIC code; each DLT relative fixup creates
6715 an entry in the DLT table. The entries contain the address of
6716 the final target (eg accessing "foo" would create a DLT entry
6717 with the address of "foo").
6719 Unfortunately, the HP linker doesn't take into account any addend
6720 when generating the DLT; so accessing $LIT$+8 puts the address of
6721 $LIT$ into the DLT rather than the address of $LIT$+8.
6723 The end result is we can't perform relocation symbol reductions for
6724 any fixup which creates entries in the DLT (eg they use "T" field
6727 Reject reductions involving symbols with external scope; such
6728 reductions make life a living hell for object file editors.
6730 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6731 the code space. The SOM BFD backend doesn't know how to pull the
6732 right bits out of an instruction. */
6735 hppa_fix_adjustable (fixp
)
6738 struct hppa_fix_struct
*hppa_fix
;
6740 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6743 /* Reject reductions of symbols in 32bit relocs. */
6744 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
6747 /* Reject reductions of symbols in sym1-sym2 expressions when
6748 the fixup will occur in a CODE subspace.
6750 XXX FIXME: Long term we probably want to reject all of these;
6751 for example reducing in the debug section would lose if we ever
6752 supported using the optimizing hp linker. */
6755 && (hppa_fix
->segment
->flags
& SEC_CODE
))
6757 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
6758 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
6762 /* We can't adjust any relocs that use LR% and RR% field selectors.
6763 That confuses the HP linker. */
6764 if (hppa_fix
->fx_r_field
== e_lrsel
6765 || hppa_fix
->fx_r_field
== e_rrsel
6766 || hppa_fix
->fx_r_field
== e_nlrsel
)
6770 /* Reject reductions of symbols in DLT relative relocs,
6771 relocations with plabels. */
6772 if (hppa_fix
->fx_r_field
== e_tsel
6773 || hppa_fix
->fx_r_field
== e_ltsel
6774 || hppa_fix
->fx_r_field
== e_rtsel
6775 || hppa_fix
->fx_r_field
== e_psel
6776 || hppa_fix
->fx_r_field
== e_rpsel
6777 || hppa_fix
->fx_r_field
== e_lpsel
)
6780 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
6783 /* Reject absolute calls (jumps). */
6784 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
6787 /* Reject reductions of function symbols. */
6788 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
6794 /* Return nonzero if the fixup in FIXP will require a relocation,
6795 even it if appears that the fixup could be completely handled
6799 hppa_force_relocation (fixp
)
6802 struct hppa_fix_struct
*hppa_fixp
;
6805 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6807 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
6808 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
6809 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
6810 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
6811 || fixp
->fx_r_type
== R_HPPA_END_TRY
6812 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
6813 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
6817 #define arg_reloc_stub_needed(CALLER, CALLEE) \
6818 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6821 /* It is necessary to force PC-relative calls/jumps to have a relocation
6822 entry if they're going to need either a argument relocation or long
6823 call stub. FIXME. Can't we need the same for absolute calls? */
6824 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
6825 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
6826 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
6827 hppa_fixp
->fx_arg_reloc
)))
6830 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
6831 - md_pcrel_from (fixp
));
6832 /* Now check and see if we're going to need a long-branch stub. */
6833 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
6834 && (distance
> 262143 || distance
< -262144))
6837 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
6839 #undef arg_reloc_stub_needed
6841 /* No need (yet) to force another relocations to be emitted. */
6845 /* Now for some ELF specific code. FIXME. */
6847 /* Mark the end of a function so that it's possible to compute
6848 the size of the function in hppa_elf_final_processing. */
6851 hppa_elf_mark_end_of_function ()
6853 /* ELF does not have EXIT relocations. All we do is create a
6854 temporary symbol marking the end of the function. */
6855 char *name
= (char *)
6856 xmalloc (strlen ("L$\001end_") +
6857 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
6863 strcpy (name
, "L$\001end_");
6864 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
6866 /* If we have a .exit followed by a .procend, then the
6867 symbol will have already been defined. */
6868 symbolP
= symbol_find (name
);
6871 /* The symbol has already been defined! This can
6872 happen if we have a .exit followed by a .procend.
6874 This is *not* an error. All we want to do is free
6875 the memory we just allocated for the name and continue. */
6880 /* symbol value should be the offset of the
6881 last instruction of the function */
6882 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
6886 S_CLEAR_EXTERNAL (symbolP
);
6887 symbol_table_insert (symbolP
);
6891 last_call_info
->end_symbol
= symbolP
;
6893 as_bad (_("Symbol '%s' could not be created."), name
);
6897 as_bad (_("No memory for symbol name."));
6901 /* For ELF, this function serves one purpose: to setup the st_size
6902 field of STT_FUNC symbols. To do this, we need to scan the
6903 call_info structure list, determining st_size in by taking the
6904 difference in the address of the beginning/end marker symbols. */
6907 elf_hppa_final_processing ()
6909 struct call_info
*call_info_pointer
;
6911 for (call_info_pointer
= call_info_root
;
6913 call_info_pointer
= call_info_pointer
->ci_next
)
6915 elf_symbol_type
*esym
6916 = ((elf_symbol_type
*)
6917 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
6918 esym
->internal_elf_sym
.st_size
=
6919 S_GET_VALUE (call_info_pointer
->end_symbol
)
6920 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;