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);
2235 /* Handle a system control completer. */
2237 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
2245 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
2247 /* Handle a nullification completer for branch instructions. */
2249 nullif
= pa_parse_nullif (&s
);
2250 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2252 /* Handle a nullification completer for copr and spop insns. */
2254 nullif
= pa_parse_nullif (&s
);
2255 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2258 /* Handle a 11 bit immediate at 31. */
2260 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2263 if (the_insn
.exp
.X_op
== O_constant
)
2265 num
= evaluate_absolute (&the_insn
);
2266 CHECK_FIELD (num
, 1023, -1024, 0);
2267 low_sign_unext (num
, 11, &num
);
2268 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2272 if (is_DP_relative (the_insn
.exp
))
2273 the_insn
.reloc
= R_HPPA_GOTOFF
;
2274 else if (is_PC_relative (the_insn
.exp
))
2275 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2277 the_insn
.reloc
= R_HPPA
;
2278 the_insn
.format
= 11;
2283 /* Handle a 14 bit immediate at 31. */
2285 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2288 if (the_insn
.exp
.X_op
== O_constant
)
2290 num
= evaluate_absolute (&the_insn
);
2291 CHECK_FIELD (num
, 8191, -8192, 0);
2292 low_sign_unext (num
, 14, &num
);
2293 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2297 if (is_DP_relative (the_insn
.exp
))
2298 the_insn
.reloc
= R_HPPA_GOTOFF
;
2299 else if (is_PC_relative (the_insn
.exp
))
2300 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2302 the_insn
.reloc
= R_HPPA
;
2303 the_insn
.format
= 14;
2307 /* Handle a 21 bit immediate at 31. */
2309 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2312 if (the_insn
.exp
.X_op
== O_constant
)
2314 num
= evaluate_absolute (&the_insn
);
2315 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2316 dis_assemble_21 (num
, &num
);
2317 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2321 if (is_DP_relative (the_insn
.exp
))
2322 the_insn
.reloc
= R_HPPA_GOTOFF
;
2323 else if (is_PC_relative (the_insn
.exp
))
2324 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2326 the_insn
.reloc
= R_HPPA
;
2327 the_insn
.format
= 21;
2331 /* Handle a 12 bit branch displacement. */
2333 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2337 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2339 unsigned int w1
, w
, result
;
2341 num
= evaluate_absolute (&the_insn
);
2344 as_bad (_("Branch to unaligned address"));
2347 CHECK_FIELD (num
, 8199, -8184, 0);
2348 sign_unext ((num
- 8) >> 2, 12, &result
);
2349 dis_assemble_12 (result
, &w1
, &w
);
2350 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2354 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2355 the_insn
.format
= 12;
2356 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2357 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2362 /* Handle a 17 bit branch displacement. */
2364 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2368 if (!the_insn
.exp
.X_add_symbol
2369 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2372 unsigned int w2
, w1
, w
, result
;
2374 num
= evaluate_absolute (&the_insn
);
2377 as_bad (_("Branch to unaligned address"));
2380 CHECK_FIELD (num
, 262143, -262144, 0);
2382 if (the_insn
.exp
.X_add_symbol
)
2385 sign_unext (num
>> 2, 17, &result
);
2386 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2387 INSERT_FIELD_AND_CONTINUE (opcode
,
2388 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2392 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2393 the_insn
.format
= 17;
2394 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2395 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2399 /* Handle an absolute 17 bit branch target. */
2401 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2405 if (!the_insn
.exp
.X_add_symbol
2406 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2409 unsigned int w2
, w1
, w
, result
;
2411 num
= evaluate_absolute (&the_insn
);
2414 as_bad (_("Branch to unaligned address"));
2417 CHECK_FIELD (num
, 262143, -262144, 0);
2419 if (the_insn
.exp
.X_add_symbol
)
2422 sign_unext (num
>> 2, 17, &result
);
2423 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2424 INSERT_FIELD_AND_CONTINUE (opcode
,
2425 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2429 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2430 the_insn
.format
= 17;
2431 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2432 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2436 /* Handle a 5 bit shift count at 26. */
2438 num
= pa_get_absolute_expression (&the_insn
, &s
);
2440 CHECK_FIELD (num
, 31, 0, 0);
2441 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2443 /* Handle a 5 bit bit position at 26. */
2445 num
= pa_get_absolute_expression (&the_insn
, &s
);
2447 CHECK_FIELD (num
, 31, 0, 0);
2448 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2450 /* Handle a 5 bit immediate at 10. */
2453 num
= pa_get_absolute_expression (&the_insn
, &s
);
2454 if (the_insn
.exp
.X_op
!= O_constant
)
2457 CHECK_FIELD (num
, 31, 0, 0);
2458 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2460 /* Handle a 13 bit immediate at 18. */
2462 num
= pa_get_absolute_expression (&the_insn
, &s
);
2464 CHECK_FIELD (num
, 8191, 0, 0);
2465 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2467 /* Handle a 26 bit immediate at 31. */
2469 num
= pa_get_absolute_expression (&the_insn
, &s
);
2471 CHECK_FIELD (num
, 671108864, 0, 0);
2472 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2474 /* Handle a 3 bit SFU identifier at 25. */
2477 as_bad (_("Invalid SFU identifier"));
2478 num
= pa_get_absolute_expression (&the_insn
, &s
);
2480 CHECK_FIELD (num
, 7, 0, 0);
2481 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2483 /* Handle a 20 bit SOP field for spop0. */
2485 num
= pa_get_absolute_expression (&the_insn
, &s
);
2487 CHECK_FIELD (num
, 1048575, 0, 0);
2488 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2489 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2491 /* Handle a 15bit SOP field for spop1. */
2493 num
= pa_get_absolute_expression (&the_insn
, &s
);
2495 CHECK_FIELD (num
, 32767, 0, 0);
2496 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2498 /* Handle a 10bit SOP field for spop3. */
2500 num
= pa_get_absolute_expression (&the_insn
, &s
);
2502 CHECK_FIELD (num
, 1023, 0, 0);
2503 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
2504 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2506 /* Handle a 15 bit SOP field for spop2. */
2508 num
= pa_get_absolute_expression (&the_insn
, &s
);
2510 CHECK_FIELD (num
, 32767, 0, 0);
2511 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
2512 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2514 /* Handle a 3-bit co-processor ID field. */
2517 as_bad (_("Invalid COPR identifier"));
2518 num
= pa_get_absolute_expression (&the_insn
, &s
);
2520 CHECK_FIELD (num
, 7, 0, 0);
2521 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2523 /* Handle a 22bit SOP field for copr. */
2525 num
= pa_get_absolute_expression (&the_insn
, &s
);
2527 CHECK_FIELD (num
, 4194303, 0, 0);
2528 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
2529 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2532 /* Handle a source FP operand format completer. */
2534 flag
= pa_parse_fp_format (&s
);
2535 the_insn
.fpof1
= flag
;
2536 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2538 /* Handle a destination FP operand format completer. */
2540 /* pa_parse_format needs the ',' prefix. */
2542 flag
= pa_parse_fp_format (&s
);
2543 the_insn
.fpof2
= flag
;
2544 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
2546 /* Handle L/R register halves like 't'. */
2549 struct pa_11_fp_reg_struct result
;
2551 pa_parse_number (&s
, &result
);
2552 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2553 opcode
|= result
.number_part
;
2555 /* 0x30 opcodes are FP arithmetic operation opcodes
2556 and need to be turned into 0x38 opcodes. This
2557 is not necessary for loads/stores. */
2558 if (need_pa11_opcode (&the_insn
, &result
)
2559 && ((opcode
& 0xfc000000) == 0x30000000))
2562 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
2565 /* Handle L/R register halves like 'b'. */
2568 struct pa_11_fp_reg_struct result
;
2570 pa_parse_number (&s
, &result
);
2571 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2572 opcode
|= result
.number_part
<< 21;
2573 if (need_pa11_opcode (&the_insn
, &result
))
2575 opcode
|= (result
.l_r_select
& 1) << 7;
2581 /* Float operand 1 similar to 'b' but with l/r registers. */
2584 struct pa_11_fp_reg_struct result
;
2586 pa_parse_number (&s
, &result
);
2587 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2588 opcode
|= result
.number_part
<< 21;
2589 opcode
|= (result
.l_r_select
& 1) << 7;
2593 /* Handle L/R register halves like 'b'. */
2596 struct pa_11_fp_reg_struct result
;
2599 pa_parse_number (&s
, &result
);
2600 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2601 opcode
|= (result
.number_part
& 0x1c) << 11;
2602 opcode
|= (result
.number_part
& 0x3) << 9;
2603 opcode
|= (result
.l_r_select
& 1) << 8;
2607 /* Handle L/R register halves like 'x'. */
2610 struct pa_11_fp_reg_struct result
;
2612 pa_parse_number (&s
, &result
);
2613 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2614 opcode
|= (result
.number_part
& 0x1f) << 16;
2615 if (need_pa11_opcode (&the_insn
, &result
))
2617 opcode
|= (result
.l_r_select
& 1) << 1;
2622 /* Handle L/R register halves like 'x'. */
2625 struct pa_11_fp_reg_struct result
;
2627 pa_parse_number (&s
, &result
);
2628 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2629 opcode
|= (result
.number_part
& 0x1f) << 16;
2630 if (need_pa11_opcode (&the_insn
, &result
))
2632 opcode
|= (result
.l_r_select
& 1) << 12;
2638 /* Float operand 2, like 'x' but with l/r register halves. */
2641 struct pa_11_fp_reg_struct result
;
2643 pa_parse_number (&s
, &result
);
2644 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2645 opcode
|= (result
.number_part
& 0x1f) << 16;
2646 opcode
|= (result
.l_r_select
& 1) << 12;
2650 /* Handle a 5 bit register field at 10. */
2653 struct pa_11_fp_reg_struct result
;
2655 pa_parse_number (&s
, &result
);
2656 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2657 if (the_insn
.fpof1
== SGL
)
2659 if (result
.number_part
< 16)
2661 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2665 result
.number_part
&= 0xF;
2666 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2668 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
2671 /* Handle a 5 bit register field at 15. */
2674 struct pa_11_fp_reg_struct result
;
2676 pa_parse_number (&s
, &result
);
2677 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2678 if (the_insn
.fpof1
== SGL
)
2680 if (result
.number_part
< 16)
2682 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2685 result
.number_part
&= 0xF;
2686 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2688 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
2691 /* Handle a 5 bit register field at 31. */
2694 struct pa_11_fp_reg_struct result
;
2696 pa_parse_number (&s
, &result
);
2697 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2698 if (the_insn
.fpof1
== SGL
)
2700 if (result
.number_part
< 16)
2702 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2705 result
.number_part
&= 0xF;
2706 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2708 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
2711 /* Handle a 5 bit register field at 20. */
2714 struct pa_11_fp_reg_struct result
;
2716 pa_parse_number (&s
, &result
);
2717 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2718 if (the_insn
.fpof1
== SGL
)
2720 if (result
.number_part
< 16)
2722 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2725 result
.number_part
&= 0xF;
2726 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2728 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
2731 /* Handle a 5 bit register field at 25. */
2734 struct pa_11_fp_reg_struct result
;
2736 pa_parse_number (&s
, &result
);
2737 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2738 if (the_insn
.fpof1
== SGL
)
2740 if (result
.number_part
< 16)
2742 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2745 result
.number_part
&= 0xF;
2746 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2748 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
2751 /* Handle a floating point operand format at 26.
2752 Only allows single and double precision. */
2754 flag
= pa_parse_fp_format (&s
);
2760 the_insn
.fpof1
= flag
;
2766 as_bad (_("Invalid Floating Point Operand Format."));
2777 /* Check if the args matched. */
2780 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
2781 && !strcmp (insn
->name
, insn
[1].name
))
2789 as_bad (_("Invalid operands %s"), error_message
);
2796 the_insn
.opcode
= opcode
;
2799 /* Turn a string in input_line_pointer into a floating point constant of type
2800 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
2801 emitted is stored in *sizeP . An error message or NULL is returned. */
2803 #define MAX_LITTLENUMS 6
2806 md_atof (type
, litP
, sizeP
)
2812 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
2813 LITTLENUM_TYPE
*wordP
;
2845 return _("Bad call to MD_ATOF()");
2847 t
= atof_ieee (input_line_pointer
, type
, words
);
2849 input_line_pointer
= t
;
2850 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
2851 for (wordP
= words
; prec
--;)
2853 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
2854 litP
+= sizeof (LITTLENUM_TYPE
);
2859 /* Write out big-endian. */
2862 md_number_to_chars (buf
, val
, n
)
2867 number_to_chars_bigendian (buf
, val
, n
);
2870 /* Translate internal representation of relocation info to BFD target
2874 tc_gen_reloc (section
, fixp
)
2879 struct hppa_fix_struct
*hppa_fixp
;
2880 bfd_reloc_code_real_type code
;
2881 static arelent
*no_relocs
= NULL
;
2883 bfd_reloc_code_real_type
**codes
;
2887 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
2888 if (fixp
->fx_addsy
== 0)
2890 assert (hppa_fixp
!= 0);
2891 assert (section
!= 0);
2893 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
2895 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2896 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2897 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
2899 hppa_fixp
->fx_r_format
,
2900 hppa_fixp
->fx_r_field
,
2901 fixp
->fx_subsy
!= NULL
,
2902 symbol_get_bfdsym (fixp
->fx_addsy
));
2907 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
2910 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
2911 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
2912 for (i
= 0; i
< n_relocs
; i
++)
2913 relocs
[i
] = &reloc
[i
];
2915 relocs
[n_relocs
] = NULL
;
2918 switch (fixp
->fx_r_type
)
2921 assert (n_relocs
== 1);
2925 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2926 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2927 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2928 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2929 reloc
->addend
= 0; /* default */
2931 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
2933 /* Now, do any processing that is dependent on the relocation type. */
2936 case R_PARISC_DLTREL21L
:
2937 case R_PARISC_DLTREL14R
:
2938 case R_PARISC_DLTREL14F
:
2939 case R_PARISC_PLABEL32
:
2940 case R_PARISC_PLABEL21L
:
2941 case R_PARISC_PLABEL14R
:
2942 /* For plabel relocations, the addend of the
2943 relocation should be either 0 (no static link) or 2
2944 (static link required).
2946 FIXME: We always assume no static link!
2948 We also slam a zero addend into the DLT relative relocs;
2949 it doesn't make a lot of sense to use any addend since
2950 it gets you a different (eg unknown) DLT entry. */
2954 case R_PARISC_PCREL21L
:
2955 case R_PARISC_PCREL17R
:
2956 case R_PARISC_PCREL17F
:
2957 case R_PARISC_PCREL17C
:
2958 case R_PARISC_PCREL14R
:
2959 case R_PARISC_PCREL14F
:
2960 /* The constant is stored in the instruction. */
2961 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
2964 reloc
->addend
= fixp
->fx_offset
;
2971 /* Walk over reach relocation returned by the BFD backend. */
2972 for (i
= 0; i
< n_relocs
; i
++)
2976 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2977 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2978 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2979 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2984 /* The only time we ever use a R_COMP2 fixup is for the difference
2985 of two symbols. With that in mind we fill in all four
2986 relocs now and break out of the loop. */
2988 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
2989 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
2990 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2991 relocs
[0]->addend
= 0;
2992 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2993 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2994 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
2995 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2996 relocs
[1]->addend
= 0;
2997 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2998 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
2999 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3000 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3001 relocs
[2]->addend
= 0;
3002 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3003 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3004 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3005 relocs
[3]->addend
= 0;
3006 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3007 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3008 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3009 relocs
[4]->addend
= 0;
3013 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3019 /* For plabel relocations, the addend of the
3020 relocation should be either 0 (no static link) or 2
3021 (static link required).
3023 FIXME: We always assume no static link!
3025 We also slam a zero addend into the DLT relative relocs;
3026 it doesn't make a lot of sense to use any addend since
3027 it gets you a different (eg unknown) DLT entry. */
3028 relocs
[i
]->addend
= 0;
3043 /* There is no symbol or addend associated with these fixups. */
3044 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3045 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3046 relocs
[i
]->addend
= 0;
3052 /* There is no symbol associated with these fixups. */
3053 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3054 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3055 relocs
[i
]->addend
= fixp
->fx_offset
;
3059 relocs
[i
]->addend
= fixp
->fx_offset
;
3069 /* Process any machine dependent frag types. */
3072 md_convert_frag (abfd
, sec
, fragP
)
3074 register asection
*sec
;
3075 register fragS
*fragP
;
3077 unsigned int address
;
3079 if (fragP
->fr_type
== rs_machine_dependent
)
3081 switch ((int) fragP
->fr_subtype
)
3084 fragP
->fr_type
= rs_fill
;
3085 know (fragP
->fr_var
== 1);
3086 know (fragP
->fr_next
);
3087 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3088 if (address
% fragP
->fr_offset
)
3091 fragP
->fr_next
->fr_address
3096 fragP
->fr_offset
= 0;
3102 /* Round up a section size to the appropriate boundary. */
3105 md_section_align (segment
, size
)
3109 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3110 int align2
= (1 << align
) - 1;
3112 return (size
+ align2
) & ~align2
;
3115 /* Return the approximate size of a frag before relaxation has occurred. */
3117 md_estimate_size_before_relax (fragP
, segment
)
3118 register fragS
*fragP
;
3125 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3131 CONST
char *md_shortopts
= "";
3132 struct option md_longopts
[] = {
3133 {NULL
, no_argument
, NULL
, 0}
3135 size_t md_longopts_size
= sizeof(md_longopts
);
3138 md_parse_option (c
, arg
)
3146 md_show_usage (stream
)
3151 /* We have no need to default values of symbols. */
3154 md_undefined_symbol (name
)
3160 /* Apply a fixup to an instruction. */
3163 md_apply_fix (fixP
, valp
)
3167 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3168 struct hppa_fix_struct
*hppa_fixP
;
3169 long new_val
, result
= 0;
3170 unsigned int w1
, w2
, w
, resulti
;
3172 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3173 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3174 never be "applied" (they are just markers). Likewise for
3175 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3177 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3178 || fixP
->fx_r_type
== R_HPPA_EXIT
3179 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3180 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3181 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3184 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3185 fixups are considered not adjustable, which in turn causes
3186 adjust_reloc_syms to not set fx_offset. Ugh. */
3187 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3189 fixP
->fx_offset
= *valp
;
3194 /* There should have been an HPPA specific fixup associated
3195 with the GAS fixup. */
3198 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3199 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3201 /* If there is a symbol associated with this fixup, then it's something
3202 which will need a SOM relocation (except for some PC-relative relocs).
3203 In such cases we should treat the "val" or "addend" as zero since it
3204 will be added in as needed from fx_offset in tc_gen_reloc. */
3205 if ((fixP
->fx_addsy
!= NULL
3206 || fixP
->fx_r_type
== R_HPPA_NONE
)
3211 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3213 /* These field selectors imply that we do not want an addend. */
3214 else if (hppa_fixP
->fx_r_field
== e_psel
3215 || hppa_fixP
->fx_r_field
== e_rpsel
3216 || hppa_fixP
->fx_r_field
== e_lpsel
3217 || hppa_fixP
->fx_r_field
== e_tsel
3218 || hppa_fixP
->fx_r_field
== e_rtsel
3219 || hppa_fixP
->fx_r_field
== e_ltsel
)
3220 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3221 /* This is truely disgusting. The machine independent code blindly
3222 adds in the value of the symbol being relocated against. Damn! */
3224 && fixP
->fx_addsy
!= NULL
3225 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3226 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3227 0, hppa_fixP
->fx_r_field
);
3230 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3232 /* Handle pc-relative exceptions from above. */
3233 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3234 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3235 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3239 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3240 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3241 hppa_fixP
->fx_arg_reloc
)
3243 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3244 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3246 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3248 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3249 #undef arg_reloc_stub_needed
3253 /* Handle all opcodes with the 'j' operand type. */
3255 CHECK_FIELD (new_val
, 8191, -8192, 0);
3257 /* Mask off 14 bits to be changed. */
3258 bfd_put_32 (stdoutput
,
3259 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3261 low_sign_unext (new_val
, 14, &resulti
);
3265 /* Handle all opcodes with the 'k' operand type. */
3267 CHECK_FIELD (new_val
, 2097152, 0, 0);
3269 /* Mask off 21 bits to be changed. */
3270 bfd_put_32 (stdoutput
,
3271 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3273 dis_assemble_21 (new_val
, &resulti
);
3277 /* Handle all the opcodes with the 'i' operand type. */
3279 CHECK_FIELD (new_val
, 1023, -1023, 0);
3281 /* Mask off 11 bits to be changed. */
3282 bfd_put_32 (stdoutput
,
3283 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3285 low_sign_unext (new_val
, 11, &resulti
);
3289 /* Handle all the opcodes with the 'w' operand type. */
3291 CHECK_FIELD (new_val
, 8199, -8184, 0);
3293 /* Mask off 11 bits to be changed. */
3294 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3295 bfd_put_32 (stdoutput
,
3296 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3299 dis_assemble_12 (resulti
, &w1
, &w
);
3300 result
= ((w1
<< 2) | w
);
3303 /* Handle some of the opcodes with the 'W' operand type. */
3306 int distance
= *valp
;
3308 CHECK_FIELD (new_val
, 262143, -262144, 0);
3310 /* If this is an absolute branch (ie no link) with an out of
3311 range target, then we want to complain. */
3312 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3313 && (distance
> 262143 || distance
< -262144)
3314 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3315 CHECK_FIELD (distance
, 262143, -262144, 0);
3317 /* Mask off 17 bits to be changed. */
3318 bfd_put_32 (stdoutput
,
3319 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3321 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3322 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3323 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3329 bfd_put_32 (stdoutput
, new_val
, buf
);
3333 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3337 /* Insert the relocation. */
3338 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3343 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3344 (unsigned int) fixP
, fixP
->fx_r_type
);
3349 /* Exactly what point is a PC-relative offset relative TO?
3350 On the PA, they're relative to the address of the offset. */
3353 md_pcrel_from (fixP
)
3356 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3359 /* Return nonzero if the input line pointer is at the end of
3363 is_end_of_statement ()
3365 return ((*input_line_pointer
== '\n')
3366 || (*input_line_pointer
== ';')
3367 || (*input_line_pointer
== '!'));
3370 /* Read a number from S. The number might come in one of many forms,
3371 the most common will be a hex or decimal constant, but it could be
3372 a pre-defined register (Yuk!), or an absolute symbol.
3374 Return a number or -1 for failure.
3376 When parsing PA-89 FP register numbers RESULT will be
3377 the address of a structure to return information about
3378 L/R half of FP registers, store results there as appropriate.
3380 pa_parse_number can not handle negative constants and will fail
3381 horribly if it is passed such a constant. */
3384 pa_parse_number (s
, result
)
3386 struct pa_11_fp_reg_struct
*result
;
3395 /* Skip whitespace before the number. */
3396 while (*p
== ' ' || *p
== '\t')
3399 /* Store info in RESULT if requested by caller. */
3402 result
->number_part
= -1;
3403 result
->l_r_select
= -1;
3409 /* Looks like a number. */
3412 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3414 /* The number is specified in hex. */
3416 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3417 || ((*p
>= 'A') && (*p
<= 'F')))
3420 num
= num
* 16 + *p
- '0';
3421 else if (*p
>= 'a' && *p
<= 'f')
3422 num
= num
* 16 + *p
- 'a' + 10;
3424 num
= num
* 16 + *p
- 'A' + 10;
3430 /* The number is specified in decimal. */
3431 while (isdigit (*p
))
3433 num
= num
* 10 + *p
- '0';
3438 /* Store info in RESULT if requested by the caller. */
3441 result
->number_part
= num
;
3443 if (IS_R_SELECT (p
))
3445 result
->l_r_select
= 1;
3448 else if (IS_L_SELECT (p
))
3450 result
->l_r_select
= 0;
3454 result
->l_r_select
= 0;
3459 /* The number might be a predefined register. */
3464 /* Tege hack: Special case for general registers as the general
3465 code makes a binary search with case translation, and is VERY
3470 if (*p
== 'e' && *(p
+ 1) == 't'
3471 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3474 num
= *p
- '0' + 28;
3482 else if (!isdigit (*p
))
3485 as_bad (_("Undefined register: '%s'."), name
);
3491 num
= num
* 10 + *p
++ - '0';
3492 while (isdigit (*p
));
3497 /* Do a normal register search. */
3498 while (is_part_of_name (c
))
3504 status
= reg_name_search (name
);
3510 as_bad (_("Undefined register: '%s'."), name
);
3516 /* Store info in RESULT if requested by caller. */
3519 result
->number_part
= num
;
3520 if (IS_R_SELECT (p
- 1))
3521 result
->l_r_select
= 1;
3522 else if (IS_L_SELECT (p
- 1))
3523 result
->l_r_select
= 0;
3525 result
->l_r_select
= 0;
3530 /* And finally, it could be a symbol in the absolute section which
3531 is effectively a constant. */
3535 while (is_part_of_name (c
))
3541 if ((sym
= symbol_find (name
)) != NULL
)
3543 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3544 num
= S_GET_VALUE (sym
);
3548 as_bad (_("Non-absolute symbol: '%s'."), name
);
3554 /* There is where we'd come for an undefined symbol
3555 or for an empty string. For an empty string we
3556 will return zero. That's a concession made for
3557 compatability with the braindamaged HP assemblers. */
3563 as_bad (_("Undefined absolute constant: '%s'."), name
);
3569 /* Store info in RESULT if requested by caller. */
3572 result
->number_part
= num
;
3573 if (IS_R_SELECT (p
- 1))
3574 result
->l_r_select
= 1;
3575 else if (IS_L_SELECT (p
- 1))
3576 result
->l_r_select
= 0;
3578 result
->l_r_select
= 0;
3586 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3588 /* Given NAME, find the register number associated with that name, return
3589 the integer value associated with the given name or -1 on failure. */
3592 reg_name_search (name
)
3595 int middle
, low
, high
;
3599 high
= REG_NAME_CNT
- 1;
3603 middle
= (low
+ high
) / 2;
3604 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
3610 return pre_defined_registers
[middle
].value
;
3612 while (low
<= high
);
3618 /* Return nonzero if the given INSN and L/R information will require
3619 a new PA-1.1 opcode. */
3622 need_pa11_opcode (insn
, result
)
3624 struct pa_11_fp_reg_struct
*result
;
3626 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
3628 /* If this instruction is specific to a particular architecture,
3629 then set a new architecture. */
3630 if (bfd_get_mach (stdoutput
) < pa11
)
3632 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
3633 as_warn (_("could not update architecture and machine"));
3641 /* Parse a condition for a fcmp instruction. Return the numerical
3642 code associated with the condition. */
3645 pa_parse_fp_cmp_cond (s
)
3652 for (i
= 0; i
< 32; i
++)
3654 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
3655 strlen (fp_cond_map
[i
].string
)) == 0)
3657 cond
= fp_cond_map
[i
].cond
;
3658 *s
+= strlen (fp_cond_map
[i
].string
);
3659 /* If not a complete match, back up the input string and
3661 if (**s
!= ' ' && **s
!= '\t')
3663 *s
-= strlen (fp_cond_map
[i
].string
);
3666 while (**s
== ' ' || **s
== '\t')
3672 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
3674 /* Advance over the bogus completer. */
3675 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3682 /* Parse an FP operand format completer returning the completer
3685 static fp_operand_format
3686 pa_parse_fp_format (s
)
3695 if (strncasecmp (*s
, "sgl", 3) == 0)
3700 else if (strncasecmp (*s
, "dbl", 3) == 0)
3705 else if (strncasecmp (*s
, "quad", 4) == 0)
3712 format
= ILLEGAL_FMT
;
3713 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
3720 /* Convert from a selector string into a selector type. */
3723 pa_chk_field_selector (str
)
3726 int middle
, low
, high
;
3730 /* Read past any whitespace. */
3731 /* FIXME: should we read past newlines and formfeeds??? */
3732 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
3735 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
3736 name
[0] = tolower ((*str
)[0]),
3738 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
3739 name
[0] = tolower ((*str
)[0]),
3740 name
[1] = tolower ((*str
)[1]),
3742 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
3743 name
[0] = tolower ((*str
)[0]),
3744 name
[1] = tolower ((*str
)[1]),
3745 name
[2] = tolower ((*str
)[2]),
3751 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
3755 middle
= (low
+ high
) / 2;
3756 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
3763 *str
+= strlen (name
) + 1;
3765 if (selector_table
[middle
].field_selector
== e_nsel
)
3768 return selector_table
[middle
].field_selector
;
3771 while (low
<= high
);
3776 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
3779 get_expression (str
)
3785 save_in
= input_line_pointer
;
3786 input_line_pointer
= str
;
3787 seg
= expression (&the_insn
.exp
);
3788 if (!(seg
== absolute_section
3789 || seg
== undefined_section
3790 || SEG_NORMAL (seg
)))
3792 as_warn (_("Bad segment in expression."));
3793 expr_end
= input_line_pointer
;
3794 input_line_pointer
= save_in
;
3797 expr_end
= input_line_pointer
;
3798 input_line_pointer
= save_in
;
3802 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
3804 pa_get_absolute_expression (insn
, strp
)
3810 insn
->field_selector
= pa_chk_field_selector (strp
);
3811 save_in
= input_line_pointer
;
3812 input_line_pointer
= *strp
;
3813 expression (&insn
->exp
);
3814 /* This is not perfect, but is a huge improvement over doing nothing.
3816 The PA assembly syntax is ambigious in a variety of ways. Consider
3817 this string "4 %r5" Is that the number 4 followed by the register
3818 r5, or is that 4 MOD 5?
3820 If we get a modulo expresion When looking for an absolute, we try
3821 again cutting off the input string at the first whitespace character. */
3822 if (insn
->exp
.X_op
== O_modulus
)
3827 input_line_pointer
= *strp
;
3829 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
3835 retval
= pa_get_absolute_expression (insn
, strp
);
3837 input_line_pointer
= save_in
;
3839 return evaluate_absolute (insn
);
3841 if (insn
->exp
.X_op
!= O_constant
)
3843 as_bad (_("Bad segment (should be absolute)."));
3844 expr_end
= input_line_pointer
;
3845 input_line_pointer
= save_in
;
3848 expr_end
= input_line_pointer
;
3849 input_line_pointer
= save_in
;
3850 return evaluate_absolute (insn
);
3853 /* Evaluate an absolute expression EXP which may be modified by
3854 the selector FIELD_SELECTOR. Return the value of the expression. */
3856 evaluate_absolute (insn
)
3861 int field_selector
= insn
->field_selector
;
3864 value
= exp
.X_add_number
;
3866 switch (field_selector
)
3872 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3874 if (value
& 0x00000400)
3876 value
= (value
& 0xfffff800) >> 11;
3879 /* Sign extend from bit 21. */
3881 if (value
& 0x00000400)
3882 value
|= 0xfffff800;
3887 /* Arithmetic shift right 11 bits. */
3889 value
= (value
& 0xfffff800) >> 11;
3892 /* Set bits 0-20 to zero. */
3894 value
= value
& 0x7ff;
3897 /* Add 0x800 and arithmetic shift right 11 bits. */
3900 value
= (value
& 0xfffff800) >> 11;
3903 /* Set bitgs 0-21 to one. */
3905 value
|= 0xfffff800;
3908 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
3910 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
3914 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
3919 BAD_CASE (field_selector
);
3925 /* Given an argument location specification return the associated
3926 argument location number. */
3929 pa_build_arg_reloc (type_name
)
3933 if (strncasecmp (type_name
, "no", 2) == 0)
3935 if (strncasecmp (type_name
, "gr", 2) == 0)
3937 else if (strncasecmp (type_name
, "fr", 2) == 0)
3939 else if (strncasecmp (type_name
, "fu", 2) == 0)
3942 as_bad (_("Invalid argument location: %s\n"), type_name
);
3947 /* Encode and return an argument relocation specification for
3948 the given register in the location specified by arg_reloc. */
3951 pa_align_arg_reloc (reg
, arg_reloc
)
3953 unsigned int arg_reloc
;
3955 unsigned int new_reloc
;
3957 new_reloc
= arg_reloc
;
3973 as_bad (_("Invalid argument description: %d"), reg
);
3979 /* Parse a PA nullification completer (,n). Return nonzero if the
3980 completer was found; return zero if no completer was found. */
3992 if (strncasecmp (*s
, "n", 1) == 0)
3996 as_bad (_("Invalid Nullification: (%c)"), **s
);
4005 /* Parse a non-negated compare/subtract completer returning the
4006 number (for encoding in instrutions) of the given completer.
4008 ISBRANCH specifies whether or not this is parsing a condition
4009 completer for a branch (vs a nullification completer for a
4010 computational instruction. */
4013 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4018 char *name
= *s
+ 1;
4027 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4033 if (strcmp (name
, "=") == 0)
4037 else if (strcmp (name
, "<") == 0)
4041 else if (strcmp (name
, "<=") == 0)
4045 else if (strcmp (name
, "<<") == 0)
4049 else if (strcmp (name
, "<<=") == 0)
4053 else if (strcasecmp (name
, "sv") == 0)
4057 else if (strcasecmp (name
, "od") == 0)
4061 /* If we have something like addb,n then there is no condition
4063 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4075 /* Reset pointers if this was really a ,n for a branch instruction. */
4083 /* Parse a negated compare/subtract completer returning the
4084 number (for encoding in instrutions) of the given completer.
4086 ISBRANCH specifies whether or not this is parsing a condition
4087 completer for a branch (vs a nullification completer for a
4088 computational instruction. */
4091 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4096 char *name
= *s
+ 1;
4105 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4111 if (strcasecmp (name
, "tr") == 0)
4115 else if (strcmp (name
, "<>") == 0)
4119 else if (strcmp (name
, ">=") == 0)
4123 else if (strcmp (name
, ">") == 0)
4127 else if (strcmp (name
, ">>=") == 0)
4131 else if (strcmp (name
, ">>") == 0)
4135 else if (strcasecmp (name
, "nsv") == 0)
4139 else if (strcasecmp (name
, "ev") == 0)
4143 /* If we have something like addb,n then there is no condition
4145 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4157 /* Reset pointers if this was really a ,n for a branch instruction. */
4166 /* Parse a non-negated addition completer returning the number
4167 (for encoding in instrutions) of the given completer.
4169 ISBRANCH specifies whether or not this is parsing a condition
4170 completer for a branch (vs a nullification completer for a
4171 computational instruction. */
4174 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4179 char *name
= *s
+ 1;
4187 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4191 if (strcmp (name
, "=") == 0)
4195 else if (strcmp (name
, "<") == 0)
4199 else if (strcmp (name
, "<=") == 0)
4203 else if (strcasecmp (name
, "nuv") == 0)
4207 else if (strcasecmp (name
, "znv") == 0)
4211 else if (strcasecmp (name
, "sv") == 0)
4215 else if (strcasecmp (name
, "od") == 0)
4219 /* If we have something like addb,n then there is no condition
4221 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4232 /* Reset pointers if this was really a ,n for a branch instruction. */
4233 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4239 /* Parse a negated addition completer returning the number
4240 (for encoding in instrutions) of the given completer.
4242 ISBRANCH specifies whether or not this is parsing a condition
4243 completer for a branch (vs a nullification completer for a
4244 computational instruction). */
4247 pa_parse_neg_add_cmpltr (s
, isbranch
)
4252 char *name
= *s
+ 1;
4260 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4264 if (strcasecmp (name
, "tr") == 0)
4268 else if (strcmp (name
, "<>") == 0)
4272 else if (strcmp (name
, ">=") == 0)
4276 else if (strcmp (name
, ">") == 0)
4280 else if (strcasecmp (name
, "uv") == 0)
4284 else if (strcasecmp (name
, "vnz") == 0)
4288 else if (strcasecmp (name
, "nsv") == 0)
4292 else if (strcasecmp (name
, "ev") == 0)
4296 /* If we have something like addb,n then there is no condition
4298 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4309 /* Reset pointers if this was really a ,n for a branch instruction. */
4310 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4317 /* Handle an alignment directive. Special so that we can update the
4318 alignment of the subspace if necessary. */
4322 /* We must have a valid space and subspace. */
4323 pa_check_current_space_and_subspace ();
4325 /* Let the generic gas code do most of the work. */
4326 s_align_bytes (bytes
);
4328 /* If bytes is a power of 2, then update the current subspace's
4329 alignment if necessary. */
4330 if (log2 (bytes
) != -1)
4331 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4335 /* Handle a .BLOCK type pseudo-op. */
4343 unsigned int temp_size
;
4347 /* We must have a valid space and subspace. */
4348 pa_check_current_space_and_subspace ();
4351 temp_size
= get_absolute_expression ();
4353 /* Always fill with zeros, that's what the HP assembler does. */
4356 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4357 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4358 memset (p
, 0, temp_size
);
4360 /* Convert 2 bytes at a time. */
4362 for (i
= 0; i
< temp_size
; i
+= 2)
4364 md_number_to_chars (p
+ i
,
4366 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4369 pa_undefine_label ();
4370 demand_empty_rest_of_line ();
4373 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4381 /* The BRTAB relocations are only availble in SOM (to denote
4382 the beginning and end of branch tables). */
4383 char *where
= frag_more (0);
4385 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4386 NULL
, (offsetT
) 0, NULL
,
4387 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4388 e_fsel
, 0, 0, NULL
);
4391 demand_empty_rest_of_line ();
4394 /* Handle a .begin_try and .end_try pseudo-op. */
4402 char *where
= frag_more (0);
4407 /* The TRY relocations are only availble in SOM (to denote
4408 the beginning and end of exception handling regions). */
4410 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4411 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4412 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4413 e_fsel
, 0, 0, NULL
);
4416 demand_empty_rest_of_line ();
4419 /* Handle a .CALL pseudo-op. This involves storing away information
4420 about where arguments are to be found so the linker can detect
4421 (and correct) argument location mismatches between caller and callee. */
4428 /* We must have a valid space and subspace. */
4429 pa_check_current_space_and_subspace ();
4432 pa_call_args (&last_call_desc
);
4433 demand_empty_rest_of_line ();
4436 /* Do the dirty work of building a call descriptor which describes
4437 where the caller placed arguments to a function call. */
4440 pa_call_args (call_desc
)
4441 struct call_desc
*call_desc
;
4444 unsigned int temp
, arg_reloc
;
4446 while (!is_end_of_statement ())
4448 name
= input_line_pointer
;
4449 c
= get_symbol_end ();
4450 /* Process a source argument. */
4451 if ((strncasecmp (name
, "argw", 4) == 0))
4453 temp
= atoi (name
+ 4);
4454 p
= input_line_pointer
;
4456 input_line_pointer
++;
4457 name
= input_line_pointer
;
4458 c
= get_symbol_end ();
4459 arg_reloc
= pa_build_arg_reloc (name
);
4460 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4462 /* Process a return value. */
4463 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4465 p
= input_line_pointer
;
4467 input_line_pointer
++;
4468 name
= input_line_pointer
;
4469 c
= get_symbol_end ();
4470 arg_reloc
= pa_build_arg_reloc (name
);
4471 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4475 as_bad (_("Invalid .CALL argument: %s"), name
);
4477 p
= input_line_pointer
;
4479 if (!is_end_of_statement ())
4480 input_line_pointer
++;
4484 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4487 is_same_frag (frag1
, frag2
)
4494 else if (frag2
== NULL
)
4496 else if (frag1
== frag2
)
4498 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4499 return (is_same_frag (frag1
, frag2
->fr_next
));
4505 /* Build an entry in the UNWIND subspace from the given function
4506 attributes in CALL_INFO. This is not needed for SOM as using
4507 R_ENTRY and R_EXIT relocations allow the linker to handle building
4508 of the unwind spaces. */
4511 pa_build_unwind_subspace (call_info
)
4512 struct call_info
*call_info
;
4516 asection
*seg
, *save_seg
;
4517 subsegT subseg
, save_subseg
;
4521 /* Get into the right seg/subseg. This may involve creating
4522 the seg the first time through. Make sure to have the
4523 old seg/subseg so that we can reset things when we are done. */
4524 subseg
= SUBSEG_UNWIND
;
4525 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4526 if (seg
== ASEC_NULL
)
4528 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4529 bfd_set_section_flags (stdoutput
, seg
,
4530 SEC_READONLY
| SEC_HAS_CONTENTS
4531 | SEC_LOAD
| SEC_RELOC
);
4535 save_subseg
= now_subseg
;
4536 subseg_set (seg
, subseg
);
4539 /* Get some space to hold relocation information for the unwind
4542 md_number_to_chars (p
, 0, 4);
4544 /* Relocation info. for start offset of the function. */
4545 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4546 call_info
->start_symbol
, (offsetT
) 0,
4547 (expressionS
*) NULL
, 0, R_PARISC_DIR32
, e_fsel
, 32, 0, NULL
);
4550 md_number_to_chars (p
, 0, 4);
4552 /* Relocation info. for end offset of the function.
4554 Because we allow reductions of 32bit relocations for ELF, this will be
4555 reduced to section_sym + offset which avoids putting the temporary
4556 symbol into the symbol table. It (should) end up giving the same
4557 value as call_info->start_symbol + function size once the linker is
4558 finished with its work. */
4560 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4561 call_info
->end_symbol
, (offsetT
) 0,
4562 (expressionS
*) NULL
, 0, R_PARISC_DIR32
, e_fsel
, 32, 0, NULL
);
4565 unwind
= (char *) &call_info
->ci_unwind
;
4566 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4570 FRAG_APPEND_1_CHAR (c
);
4574 /* Return back to the original segment/subsegment. */
4575 subseg_set (save_seg
, save_subseg
);
4580 /* Process a .CALLINFO pseudo-op. This information is used later
4581 to build unwind descriptors and maybe one day to support
4582 .ENTER and .LEAVE. */
4585 pa_callinfo (unused
)
4592 /* We must have a valid space and subspace. */
4593 pa_check_current_space_and_subspace ();
4596 /* .CALLINFO must appear within a procedure definition. */
4597 if (!within_procedure
)
4598 as_bad (_(".callinfo is not within a procedure definition"));
4600 /* Mark the fact that we found the .CALLINFO for the
4601 current procedure. */
4602 callinfo_found
= TRUE
;
4604 /* Iterate over the .CALLINFO arguments. */
4605 while (!is_end_of_statement ())
4607 name
= input_line_pointer
;
4608 c
= get_symbol_end ();
4609 /* Frame size specification. */
4610 if ((strncasecmp (name
, "frame", 5) == 0))
4612 p
= input_line_pointer
;
4614 input_line_pointer
++;
4615 temp
= get_absolute_expression ();
4616 if ((temp
& 0x3) != 0)
4618 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
4622 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
4623 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
4626 /* Entry register (GR, GR and SR) specifications. */
4627 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
4629 p
= input_line_pointer
;
4631 input_line_pointer
++;
4632 temp
= get_absolute_expression ();
4633 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4634 even though %r19 is caller saved. I think this is a bug in
4635 the HP assembler, and we are not going to emulate it. */
4636 if (temp
< 3 || temp
> 18)
4637 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
4638 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
4640 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
4642 p
= input_line_pointer
;
4644 input_line_pointer
++;
4645 temp
= get_absolute_expression ();
4646 /* Similarly the HP assembler takes 31 as the high bound even
4647 though %fr21 is the last callee saved floating point register. */
4648 if (temp
< 12 || temp
> 21)
4649 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
4650 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
4652 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
4654 p
= input_line_pointer
;
4656 input_line_pointer
++;
4657 temp
= get_absolute_expression ();
4659 as_bad (_("Value for ENTRY_SR must be 3\n"));
4661 /* Note whether or not this function performs any calls. */
4662 else if ((strncasecmp (name
, "calls", 5) == 0) ||
4663 (strncasecmp (name
, "caller", 6) == 0))
4665 p
= input_line_pointer
;
4668 else if ((strncasecmp (name
, "no_calls", 8) == 0))
4670 p
= input_line_pointer
;
4673 /* Should RP be saved into the stack. */
4674 else if ((strncasecmp (name
, "save_rp", 7) == 0))
4676 p
= input_line_pointer
;
4678 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
4680 /* Likewise for SP. */
4681 else if ((strncasecmp (name
, "save_sp", 7) == 0))
4683 p
= input_line_pointer
;
4685 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
4687 /* Is this an unwindable procedure. If so mark it so
4688 in the unwind descriptor. */
4689 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
4691 p
= input_line_pointer
;
4693 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
4695 /* Is this an interrupt routine. If so mark it in the
4696 unwind descriptor. */
4697 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
4699 p
= input_line_pointer
;
4701 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
4703 /* Is this a millicode routine. "millicode" isn't in my
4704 assembler manual, but my copy is old. The HP assembler
4705 accepts it, and there's a place in the unwind descriptor
4706 to drop the information, so we'll accept it too. */
4707 else if ((strncasecmp (name
, "millicode", 9) == 0))
4709 p
= input_line_pointer
;
4711 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
4715 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
4716 *input_line_pointer
= c
;
4718 if (!is_end_of_statement ())
4719 input_line_pointer
++;
4722 demand_empty_rest_of_line ();
4725 /* Switch into the code subspace. */
4732 current_space
= is_defined_space ("$TEXT$");
4734 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
4737 pa_undefine_label ();
4740 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4741 the .comm pseudo-op has the following symtax:
4743 <label> .comm <length>
4745 where <label> is optional and is a symbol whose address will be the start of
4746 a block of memory <length> bytes long. <length> must be an absolute
4747 expression. <length> bytes will be allocated in the current space
4750 Also note the label may not even be on the same line as the .comm.
4752 This difference in syntax means the colon function will be called
4753 on the symbol before we arrive in pa_comm. colon will set a number
4754 of attributes of the symbol that need to be fixed here. In particular
4755 the value, section pointer, fragment pointer, flags, etc. What
4758 This also makes error detection all but impossible. */
4766 label_symbol_struct
*label_symbol
= pa_get_label ();
4769 symbol
= label_symbol
->lss_label
;
4774 size
= get_absolute_expression ();
4778 S_SET_VALUE (symbol
, size
);
4779 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
4780 S_SET_EXTERNAL (symbol
);
4782 /* colon() has already set the frag to the current location in the
4783 current subspace; we need to reset the fragment to the zero address
4784 fragment. We also need to reset the segment pointer. */
4785 symbol_set_frag (symbol
, &zero_address_frag
);
4787 demand_empty_rest_of_line ();
4790 /* Process a .END pseudo-op. */
4796 demand_empty_rest_of_line ();
4799 /* Process a .ENTER pseudo-op. This is not supported. */
4805 /* We must have a valid space and subspace. */
4806 pa_check_current_space_and_subspace ();
4809 as_bad (_("The .ENTER pseudo-op is not supported"));
4810 demand_empty_rest_of_line ();
4813 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4820 /* We must have a valid space and subspace. */
4821 pa_check_current_space_and_subspace ();
4824 if (!within_procedure
)
4825 as_bad (_("Misplaced .entry. Ignored."));
4828 if (!callinfo_found
)
4829 as_bad (_("Missing .callinfo."));
4831 demand_empty_rest_of_line ();
4832 within_entry_exit
= TRUE
;
4835 /* SOM defers building of unwind descriptors until the link phase.
4836 The assembler is responsible for creating an R_ENTRY relocation
4837 to mark the beginning of a region and hold the unwind bits, and
4838 for creating an R_EXIT relocation to mark the end of the region.
4840 FIXME. ELF should be using the same conventions! The problem
4841 is an unwind requires too much relocation space. Hmmm. Maybe
4842 if we split the unwind bits up between the relocations which
4843 denote the entry and exit points. */
4844 if (last_call_info
->start_symbol
!= NULL
)
4846 char *where
= frag_more (0);
4848 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4849 NULL
, (offsetT
) 0, NULL
,
4850 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
4851 (int *) &last_call_info
->ci_unwind
.descriptor
);
4856 /* Handle a .EQU pseudo-op. */
4862 label_symbol_struct
*label_symbol
= pa_get_label ();
4867 symbol
= label_symbol
->lss_label
;
4869 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
4871 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
4872 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
4877 as_bad (_(".REG must use a label"));
4879 as_bad (_(".EQU must use a label"));
4882 pa_undefine_label ();
4883 demand_empty_rest_of_line ();
4886 /* Helper function. Does processing for the end of a function. This
4887 usually involves creating some relocations or building special
4888 symbols to mark the end of the function. */
4895 where
= frag_more (0);
4898 /* Mark the end of the function, stuff away the location of the frag
4899 for the end of the function, and finally call pa_build_unwind_subspace
4900 to add an entry in the unwind table. */
4901 hppa_elf_mark_end_of_function ();
4902 pa_build_unwind_subspace (last_call_info
);
4904 /* SOM defers building of unwind descriptors until the link phase.
4905 The assembler is responsible for creating an R_ENTRY relocation
4906 to mark the beginning of a region and hold the unwind bits, and
4907 for creating an R_EXIT relocation to mark the end of the region.
4909 FIXME. ELF should be using the same conventions! The problem
4910 is an unwind requires too much relocation space. Hmmm. Maybe
4911 if we split the unwind bits up between the relocations which
4912 denote the entry and exit points. */
4913 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4915 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
4916 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
4920 /* Process a .EXIT pseudo-op. */
4927 /* We must have a valid space and subspace. */
4928 pa_check_current_space_and_subspace ();
4931 if (!within_procedure
)
4932 as_bad (_(".EXIT must appear within a procedure"));
4935 if (!callinfo_found
)
4936 as_bad (_("Missing .callinfo"));
4939 if (!within_entry_exit
)
4940 as_bad (_("No .ENTRY for this .EXIT"));
4943 within_entry_exit
= FALSE
;
4948 demand_empty_rest_of_line ();
4951 /* Process a .EXPORT directive. This makes functions external
4952 and provides information such as argument relocation entries
4962 name
= input_line_pointer
;
4963 c
= get_symbol_end ();
4964 /* Make sure the given symbol exists. */
4965 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
4967 as_bad (_("Cannot define export symbol: %s\n"), name
);
4968 p
= input_line_pointer
;
4970 input_line_pointer
++;
4974 /* OK. Set the external bits and process argument relocations. */
4975 S_SET_EXTERNAL (symbol
);
4976 p
= input_line_pointer
;
4978 if (!is_end_of_statement ())
4980 input_line_pointer
++;
4981 pa_type_args (symbol
, 1);
4985 demand_empty_rest_of_line ();
4988 /* Helper function to process arguments to a .EXPORT pseudo-op. */
4991 pa_type_args (symbolP
, is_export
)
4996 unsigned int temp
, arg_reloc
;
4997 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
4998 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5000 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5003 input_line_pointer
+= 8;
5004 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5005 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5006 type
= SYMBOL_TYPE_ABSOLUTE
;
5008 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5010 input_line_pointer
+= 4;
5011 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5012 instead one should be IMPORTing/EXPORTing ENTRY types.
5014 Complain if one tries to EXPORT a CODE type since that's never
5015 done. Both GCC and HP C still try to IMPORT CODE types, so
5016 silently fix them to be ENTRY types. */
5017 if (S_IS_FUNCTION (symbolP
))
5020 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5021 S_GET_NAME (symbolP
));
5023 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5024 type
= SYMBOL_TYPE_ENTRY
;
5028 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5029 type
= SYMBOL_TYPE_CODE
;
5032 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5034 input_line_pointer
+= 4;
5035 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5036 type
= SYMBOL_TYPE_DATA
;
5038 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5040 input_line_pointer
+= 5;
5041 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5042 type
= SYMBOL_TYPE_ENTRY
;
5044 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5046 input_line_pointer
+= 9;
5047 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5048 type
= SYMBOL_TYPE_MILLICODE
;
5050 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5052 input_line_pointer
+= 6;
5053 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5054 type
= SYMBOL_TYPE_PLABEL
;
5056 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5058 input_line_pointer
+= 8;
5059 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5060 type
= SYMBOL_TYPE_PRI_PROG
;
5062 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5064 input_line_pointer
+= 8;
5065 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5066 type
= SYMBOL_TYPE_SEC_PROG
;
5069 /* SOM requires much more information about symbol types
5070 than BFD understands. This is how we get this information
5071 to the SOM BFD backend. */
5072 #ifdef obj_set_symbol_type
5073 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5076 /* Now that the type of the exported symbol has been handled,
5077 handle any argument relocation information. */
5078 while (!is_end_of_statement ())
5080 if (*input_line_pointer
== ',')
5081 input_line_pointer
++;
5082 name
= input_line_pointer
;
5083 c
= get_symbol_end ();
5084 /* Argument sources. */
5085 if ((strncasecmp (name
, "argw", 4) == 0))
5087 p
= input_line_pointer
;
5089 input_line_pointer
++;
5090 temp
= atoi (name
+ 4);
5091 name
= input_line_pointer
;
5092 c
= get_symbol_end ();
5093 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5095 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5097 *input_line_pointer
= c
;
5099 /* The return value. */
5100 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5102 p
= input_line_pointer
;
5104 input_line_pointer
++;
5105 name
= input_line_pointer
;
5106 c
= get_symbol_end ();
5107 arg_reloc
= pa_build_arg_reloc (name
);
5109 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5111 *input_line_pointer
= c
;
5113 /* Privelege level. */
5114 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5116 p
= input_line_pointer
;
5118 input_line_pointer
++;
5119 temp
= atoi (input_line_pointer
);
5121 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5123 c
= get_symbol_end ();
5124 *input_line_pointer
= c
;
5128 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5129 p
= input_line_pointer
;
5132 if (!is_end_of_statement ())
5133 input_line_pointer
++;
5137 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5138 assembly file must either be defined in the assembly file, or
5139 explicitly IMPORTED from another. */
5148 name
= input_line_pointer
;
5149 c
= get_symbol_end ();
5151 symbol
= symbol_find (name
);
5152 /* Ugh. We might be importing a symbol defined earlier in the file,
5153 in which case all the code below will really screw things up
5154 (set the wrong segment, symbol flags & type, etc). */
5155 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5157 symbol
= symbol_find_or_make (name
);
5158 p
= input_line_pointer
;
5161 if (!is_end_of_statement ())
5163 input_line_pointer
++;
5164 pa_type_args (symbol
, 0);
5168 /* Sigh. To be compatable with the HP assembler and to help
5169 poorly written assembly code, we assign a type based on
5170 the the current segment. Note only BSF_FUNCTION really
5171 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5172 if (now_seg
== text_section
)
5173 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5175 /* If the section is undefined, then the symbol is undefined
5176 Since this is an import, leave the section undefined. */
5177 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5182 /* The symbol was already defined. Just eat everything up to
5183 the end of the current statement. */
5184 while (!is_end_of_statement ())
5185 input_line_pointer
++;
5188 demand_empty_rest_of_line ();
5191 /* Handle a .LABEL pseudo-op. */
5199 name
= input_line_pointer
;
5200 c
= get_symbol_end ();
5202 if (strlen (name
) > 0)
5205 p
= input_line_pointer
;
5210 as_warn (_("Missing label name on .LABEL"));
5213 if (!is_end_of_statement ())
5215 as_warn (_("extra .LABEL arguments ignored."));
5216 ignore_rest_of_line ();
5218 demand_empty_rest_of_line ();
5221 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5228 /* We must have a valid space and subspace. */
5229 pa_check_current_space_and_subspace ();
5232 as_bad (_("The .LEAVE pseudo-op is not supported"));
5233 demand_empty_rest_of_line ();
5236 /* Handle a .LEVEL pseudo-op. */
5244 level
= input_line_pointer
;
5245 if (strncmp (level
, "1.0", 3) == 0)
5247 input_line_pointer
+= 3;
5248 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5249 as_warn (_("could not set architecture and machine"));
5251 else if (strncmp (level
, "1.1", 3) == 0)
5253 input_line_pointer
+= 3;
5254 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5255 as_warn (_("could not set architecture and machine"));
5257 else if (strncmp (level
, "2.0", 3) == 0)
5259 input_line_pointer
+= 3;
5260 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5261 as_warn (_("could not set architecture and machine"));
5265 as_bad (_("Unrecognized .LEVEL argument\n"));
5266 ignore_rest_of_line ();
5268 demand_empty_rest_of_line ();
5271 /* Handle a .ORIGIN pseudo-op. */
5278 /* We must have a valid space and subspace. */
5279 pa_check_current_space_and_subspace ();
5283 pa_undefine_label ();
5286 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5287 is for static functions. FIXME. Should share more code with .EXPORT. */
5296 name
= input_line_pointer
;
5297 c
= get_symbol_end ();
5299 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5301 as_bad (_("Cannot define static symbol: %s\n"), name
);
5302 p
= input_line_pointer
;
5304 input_line_pointer
++;
5308 S_CLEAR_EXTERNAL (symbol
);
5309 p
= input_line_pointer
;
5311 if (!is_end_of_statement ())
5313 input_line_pointer
++;
5314 pa_type_args (symbol
, 0);
5318 demand_empty_rest_of_line ();
5321 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5322 of a procedure from a syntatical point of view. */
5328 struct call_info
*call_info
;
5331 /* We must have a valid space and subspace. */
5332 pa_check_current_space_and_subspace ();
5335 if (within_procedure
)
5336 as_fatal (_("Nested procedures"));
5338 /* Reset global variables for new procedure. */
5339 callinfo_found
= FALSE
;
5340 within_procedure
= TRUE
;
5342 /* Create another call_info structure. */
5343 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5346 as_fatal (_("Cannot allocate unwind descriptor\n"));
5348 memset (call_info
, 0, sizeof (struct call_info
));
5350 call_info
->ci_next
= NULL
;
5352 if (call_info_root
== NULL
)
5354 call_info_root
= call_info
;
5355 last_call_info
= call_info
;
5359 last_call_info
->ci_next
= call_info
;
5360 last_call_info
= call_info
;
5363 /* set up defaults on call_info structure */
5365 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5366 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5367 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5369 /* If we got a .PROC pseudo-op, we know that the function is defined
5370 locally. Make sure it gets into the symbol table. */
5372 label_symbol_struct
*label_symbol
= pa_get_label ();
5376 if (label_symbol
->lss_label
)
5378 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5379 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5382 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5385 last_call_info
->start_symbol
= NULL
;
5388 demand_empty_rest_of_line ();
5391 /* Process the syntatical end of a procedure. Make sure all the
5392 appropriate pseudo-ops were found within the procedure. */
5400 /* We must have a valid space and subspace. */
5401 pa_check_current_space_and_subspace ();
5404 /* If we are within a procedure definition, make sure we've
5405 defined a label for the procedure; handle case where the
5406 label was defined after the .PROC directive.
5408 Note there's not need to diddle with the segment or fragment
5409 for the label symbol in this case. We have already switched
5410 into the new $CODE$ subspace at this point. */
5411 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5413 label_symbol_struct
*label_symbol
= pa_get_label ();
5417 if (label_symbol
->lss_label
)
5419 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5420 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5423 /* Also handle allocation of a fixup to hold the unwind
5424 information when the label appears after the proc/procend. */
5425 if (within_entry_exit
)
5427 char *where
= frag_more (0);
5429 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5430 NULL
, (offsetT
) 0, NULL
,
5431 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5432 (int *) &last_call_info
->ci_unwind
.descriptor
);
5437 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5440 as_bad (_("Missing function name for .PROC"));
5443 if (!within_procedure
)
5444 as_bad (_("misplaced .procend"));
5446 if (!callinfo_found
)
5447 as_bad (_("Missing .callinfo for this procedure"));
5449 if (within_entry_exit
)
5450 as_bad (_("Missing .EXIT for a .ENTRY"));
5453 /* ELF needs to mark the end of each function so that it can compute
5454 the size of the function (apparently its needed in the symbol table). */
5455 hppa_elf_mark_end_of_function ();
5458 within_procedure
= FALSE
;
5459 demand_empty_rest_of_line ();
5460 pa_undefine_label ();
5463 /* If VALUE is an exact power of two between zero and 2^31, then
5464 return log2 (VALUE). Else return -1. */
5472 while ((1 << shift
) != value
&& shift
< 32)
5483 /* Check to make sure we have a valid space and subspace. */
5486 pa_check_current_space_and_subspace ()
5488 if (current_space
== NULL
)
5489 as_fatal (_("Not in a space.\n"));
5491 if (current_subspace
== NULL
)
5492 as_fatal (_("Not in a subspace.\n"));
5495 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5496 then create a new space entry to hold the information specified
5497 by the parameters to the .SPACE directive. */
5499 static sd_chain_struct
*
5500 pa_parse_space_stmt (space_name
, create_flag
)
5504 char *name
, *ptemp
, c
;
5505 char loadable
, defined
, private, sort
;
5507 asection
*seg
= NULL
;
5508 sd_chain_struct
*space
;
5510 /* load default values */
5516 if (strcmp (space_name
, "$TEXT$") == 0)
5518 seg
= pa_def_spaces
[0].segment
;
5519 defined
= pa_def_spaces
[0].defined
;
5520 private = pa_def_spaces
[0].private;
5521 sort
= pa_def_spaces
[0].sort
;
5522 spnum
= pa_def_spaces
[0].spnum
;
5524 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5526 seg
= pa_def_spaces
[1].segment
;
5527 defined
= pa_def_spaces
[1].defined
;
5528 private = pa_def_spaces
[1].private;
5529 sort
= pa_def_spaces
[1].sort
;
5530 spnum
= pa_def_spaces
[1].spnum
;
5533 if (!is_end_of_statement ())
5535 print_errors
= FALSE
;
5536 ptemp
= input_line_pointer
+ 1;
5537 /* First see if the space was specified as a number rather than
5538 as a name. According to the PA assembly manual the rest of
5539 the line should be ignored. */
5540 temp
= pa_parse_number (&ptemp
, 0);
5544 input_line_pointer
= ptemp
;
5548 while (!is_end_of_statement ())
5550 input_line_pointer
++;
5551 name
= input_line_pointer
;
5552 c
= get_symbol_end ();
5553 if ((strncasecmp (name
, "spnum", 5) == 0))
5555 *input_line_pointer
= c
;
5556 input_line_pointer
++;
5557 spnum
= get_absolute_expression ();
5559 else if ((strncasecmp (name
, "sort", 4) == 0))
5561 *input_line_pointer
= c
;
5562 input_line_pointer
++;
5563 sort
= get_absolute_expression ();
5565 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5567 *input_line_pointer
= c
;
5570 else if ((strncasecmp (name
, "notdefined", 10) == 0))
5572 *input_line_pointer
= c
;
5575 else if ((strncasecmp (name
, "private", 7) == 0))
5577 *input_line_pointer
= c
;
5582 as_bad (_("Invalid .SPACE argument"));
5583 *input_line_pointer
= c
;
5584 if (!is_end_of_statement ())
5585 input_line_pointer
++;
5589 print_errors
= TRUE
;
5592 if (create_flag
&& seg
== NULL
)
5593 seg
= subseg_new (space_name
, 0);
5595 /* If create_flag is nonzero, then create the new space with
5596 the attributes computed above. Else set the values in
5597 an already existing space -- this can only happen for
5598 the first occurence of a built-in space. */
5600 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
5601 private, sort
, seg
, 1);
5604 space
= is_defined_space (space_name
);
5605 SPACE_SPNUM (space
) = spnum
;
5606 SPACE_DEFINED (space
) = defined
& 1;
5607 SPACE_USER_DEFINED (space
) = 1;
5610 #ifdef obj_set_section_attributes
5611 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
5617 /* Handle a .SPACE pseudo-op; this switches the current space to the
5618 given space, creating the new space if necessary. */
5624 char *name
, c
, *space_name
, *save_s
;
5626 sd_chain_struct
*sd_chain
;
5628 if (within_procedure
)
5630 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
5631 ignore_rest_of_line ();
5635 /* Check for some of the predefined spaces. FIXME: most of the code
5636 below is repeated several times, can we extract the common parts
5637 and place them into a subroutine or something similar? */
5638 /* FIXME Is this (and the next IF stmt) really right?
5639 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5640 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
5642 input_line_pointer
+= 6;
5643 sd_chain
= is_defined_space ("$TEXT$");
5644 if (sd_chain
== NULL
)
5645 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
5646 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5647 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
5649 current_space
= sd_chain
;
5650 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
5652 = pa_subsegment_to_subspace (text_section
,
5653 sd_chain
->sd_last_subseg
);
5654 demand_empty_rest_of_line ();
5657 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
5659 input_line_pointer
+= 9;
5660 sd_chain
= is_defined_space ("$PRIVATE$");
5661 if (sd_chain
== NULL
)
5662 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
5663 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5664 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
5666 current_space
= sd_chain
;
5667 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
5669 = pa_subsegment_to_subspace (data_section
,
5670 sd_chain
->sd_last_subseg
);
5671 demand_empty_rest_of_line ();
5674 if (!strncasecmp (input_line_pointer
,
5675 GDB_DEBUG_SPACE_NAME
,
5676 strlen (GDB_DEBUG_SPACE_NAME
)))
5678 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
5679 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
5680 if (sd_chain
== NULL
)
5681 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
5682 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5683 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
5685 current_space
= sd_chain
;
5688 asection
*gdb_section
5689 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
5691 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
5693 = pa_subsegment_to_subspace (gdb_section
,
5694 sd_chain
->sd_last_subseg
);
5696 demand_empty_rest_of_line ();
5700 /* It could be a space specified by number. */
5702 save_s
= input_line_pointer
;
5703 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
5705 if ((sd_chain
= pa_find_space_by_number (temp
)))
5707 current_space
= sd_chain
;
5709 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5711 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5712 sd_chain
->sd_last_subseg
);
5713 demand_empty_rest_of_line ();
5718 /* Not a number, attempt to create a new space. */
5720 input_line_pointer
= save_s
;
5721 name
= input_line_pointer
;
5722 c
= get_symbol_end ();
5723 space_name
= xmalloc (strlen (name
) + 1);
5724 strcpy (space_name
, name
);
5725 *input_line_pointer
= c
;
5727 sd_chain
= pa_parse_space_stmt (space_name
, 1);
5728 current_space
= sd_chain
;
5730 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5731 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5732 sd_chain
->sd_last_subseg
);
5733 demand_empty_rest_of_line ();
5737 /* Switch to a new space. (I think). FIXME. */
5746 sd_chain_struct
*space
;
5748 name
= input_line_pointer
;
5749 c
= get_symbol_end ();
5750 space
= is_defined_space (name
);
5754 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
5757 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
5759 *input_line_pointer
= c
;
5760 demand_empty_rest_of_line ();
5763 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
5764 given subspace, creating the new subspace if necessary.
5766 FIXME. Should mirror pa_space more closely, in particular how
5767 they're broken up into subroutines. */
5770 pa_subspace (create_new
)
5773 char *name
, *ss_name
, c
;
5774 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
5775 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
5776 sd_chain_struct
*space
;
5777 ssd_chain_struct
*ssd
;
5780 if (current_space
== NULL
)
5781 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
5783 if (within_procedure
)
5785 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
5786 ignore_rest_of_line ();
5790 name
= input_line_pointer
;
5791 c
= get_symbol_end ();
5792 ss_name
= xmalloc (strlen (name
) + 1);
5793 strcpy (ss_name
, name
);
5794 *input_line_pointer
= c
;
5796 /* Load default values. */
5808 space
= current_space
;
5812 ssd
= is_defined_subspace (ss_name
);
5813 /* Allow user to override the builtin attributes of subspaces. But
5814 only allow the attributes to be changed once! */
5815 if (ssd
&& SUBSPACE_DEFINED (ssd
))
5817 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
5818 current_subspace
= ssd
;
5819 if (!is_end_of_statement ())
5820 as_warn (_("Parameters of an existing subspace can\'t be modified"));
5821 demand_empty_rest_of_line ();
5826 /* A new subspace. Load default values if it matches one of
5827 the builtin subspaces. */
5829 while (pa_def_subspaces
[i
].name
)
5831 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
5833 loadable
= pa_def_subspaces
[i
].loadable
;
5834 common
= pa_def_subspaces
[i
].common
;
5835 dup_common
= pa_def_subspaces
[i
].dup_common
;
5836 code_only
= pa_def_subspaces
[i
].code_only
;
5837 zero
= pa_def_subspaces
[i
].zero
;
5838 space_index
= pa_def_subspaces
[i
].space_index
;
5839 alignment
= pa_def_subspaces
[i
].alignment
;
5840 quadrant
= pa_def_subspaces
[i
].quadrant
;
5841 access
= pa_def_subspaces
[i
].access
;
5842 sort
= pa_def_subspaces
[i
].sort
;
5849 /* We should be working with a new subspace now. Fill in
5850 any information as specified by the user. */
5851 if (!is_end_of_statement ())
5853 input_line_pointer
++;
5854 while (!is_end_of_statement ())
5856 name
= input_line_pointer
;
5857 c
= get_symbol_end ();
5858 if ((strncasecmp (name
, "quad", 4) == 0))
5860 *input_line_pointer
= c
;
5861 input_line_pointer
++;
5862 quadrant
= get_absolute_expression ();
5864 else if ((strncasecmp (name
, "align", 5) == 0))
5866 *input_line_pointer
= c
;
5867 input_line_pointer
++;
5868 alignment
= get_absolute_expression ();
5869 if (log2 (alignment
) == -1)
5871 as_bad (_("Alignment must be a power of 2"));
5875 else if ((strncasecmp (name
, "access", 6) == 0))
5877 *input_line_pointer
= c
;
5878 input_line_pointer
++;
5879 access
= get_absolute_expression ();
5881 else if ((strncasecmp (name
, "sort", 4) == 0))
5883 *input_line_pointer
= c
;
5884 input_line_pointer
++;
5885 sort
= get_absolute_expression ();
5887 else if ((strncasecmp (name
, "code_only", 9) == 0))
5889 *input_line_pointer
= c
;
5892 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5894 *input_line_pointer
= c
;
5897 else if ((strncasecmp (name
, "common", 6) == 0))
5899 *input_line_pointer
= c
;
5902 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
5904 *input_line_pointer
= c
;
5907 else if ((strncasecmp (name
, "zero", 4) == 0))
5909 *input_line_pointer
= c
;
5912 else if ((strncasecmp (name
, "first", 5) == 0))
5913 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
5915 as_bad (_("Invalid .SUBSPACE argument"));
5916 if (!is_end_of_statement ())
5917 input_line_pointer
++;
5921 /* Compute a reasonable set of BFD flags based on the information
5922 in the .subspace directive. */
5923 applicable
= bfd_applicable_section_flags (stdoutput
);
5926 flags
|= (SEC_ALLOC
| SEC_LOAD
);
5929 if (common
|| dup_common
)
5930 flags
|= SEC_IS_COMMON
;
5932 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
5934 /* This is a zero-filled subspace (eg BSS). */
5936 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
5938 applicable
&= flags
;
5940 /* If this is an existing subspace, then we want to use the
5941 segment already associated with the subspace.
5943 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5944 lots of sections. It might be a problem in the PA ELF
5945 code, I do not know yet. For now avoid creating anything
5946 but the "standard" sections for ELF. */
5948 section
= subseg_force_new (ss_name
, 0);
5950 section
= ssd
->ssd_seg
;
5952 section
= subseg_new (ss_name
, 0);
5955 seg_info (section
)->bss
= 1;
5957 /* Now set the flags. */
5958 bfd_set_section_flags (stdoutput
, section
, applicable
);
5960 /* Record any alignment request for this section. */
5961 record_alignment (section
, log2 (alignment
));
5963 /* Set the starting offset for this section. */
5964 bfd_set_section_vma (stdoutput
, section
,
5965 pa_subspace_start (space
, quadrant
));
5967 /* Now that all the flags are set, update an existing subspace,
5968 or create a new one. */
5971 current_subspace
= update_subspace (space
, ss_name
, loadable
,
5972 code_only
, common
, dup_common
,
5973 sort
, zero
, access
, space_index
,
5974 alignment
, quadrant
,
5977 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
5979 dup_common
, zero
, sort
,
5980 access
, space_index
,
5981 alignment
, quadrant
, section
);
5983 demand_empty_rest_of_line ();
5984 current_subspace
->ssd_seg
= section
;
5985 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
5987 SUBSPACE_DEFINED (current_subspace
) = 1;
5991 /* Create default space and subspace dictionaries. */
5998 space_dict_root
= NULL
;
5999 space_dict_last
= NULL
;
6002 while (pa_def_spaces
[i
].name
)
6006 /* Pick the right name to use for the new section. */
6007 name
= pa_def_spaces
[i
].name
;
6009 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6010 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6011 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6012 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6013 pa_def_spaces
[i
].segment
, 0);
6018 while (pa_def_subspaces
[i
].name
)
6021 int applicable
, subsegment
;
6022 asection
*segment
= NULL
;
6023 sd_chain_struct
*space
;
6025 /* Pick the right name for the new section and pick the right
6026 subsegment number. */
6027 name
= pa_def_subspaces
[i
].name
;
6030 /* Create the new section. */
6031 segment
= subseg_new (name
, subsegment
);
6034 /* For SOM we want to replace the standard .text, .data, and .bss
6035 sections with our own. We also want to set BFD flags for
6036 all the built-in subspaces. */
6037 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6039 text_section
= segment
;
6040 applicable
= bfd_applicable_section_flags (stdoutput
);
6041 bfd_set_section_flags (stdoutput
, segment
,
6042 applicable
& (SEC_ALLOC
| SEC_LOAD
6043 | SEC_RELOC
| SEC_CODE
6045 | SEC_HAS_CONTENTS
));
6047 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6049 data_section
= segment
;
6050 applicable
= bfd_applicable_section_flags (stdoutput
);
6051 bfd_set_section_flags (stdoutput
, segment
,
6052 applicable
& (SEC_ALLOC
| SEC_LOAD
6054 | SEC_HAS_CONTENTS
));
6058 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6060 bss_section
= segment
;
6061 applicable
= bfd_applicable_section_flags (stdoutput
);
6062 bfd_set_section_flags (stdoutput
, segment
,
6063 applicable
& SEC_ALLOC
);
6065 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6067 applicable
= bfd_applicable_section_flags (stdoutput
);
6068 bfd_set_section_flags (stdoutput
, segment
,
6069 applicable
& (SEC_ALLOC
| SEC_LOAD
6072 | SEC_HAS_CONTENTS
));
6074 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6076 applicable
= bfd_applicable_section_flags (stdoutput
);
6077 bfd_set_section_flags (stdoutput
, segment
,
6078 applicable
& (SEC_ALLOC
| SEC_LOAD
6081 | SEC_HAS_CONTENTS
));
6083 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6085 applicable
= bfd_applicable_section_flags (stdoutput
);
6086 bfd_set_section_flags (stdoutput
, segment
,
6087 applicable
& (SEC_ALLOC
| SEC_LOAD
6090 | SEC_HAS_CONTENTS
));
6093 /* Find the space associated with this subspace. */
6094 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6095 def_space_index
].segment
);
6098 as_fatal (_("Internal error: Unable to find containing space for %s."),
6099 pa_def_subspaces
[i
].name
);
6102 create_new_subspace (space
, name
,
6103 pa_def_subspaces
[i
].loadable
,
6104 pa_def_subspaces
[i
].code_only
,
6105 pa_def_subspaces
[i
].common
,
6106 pa_def_subspaces
[i
].dup_common
,
6107 pa_def_subspaces
[i
].zero
,
6108 pa_def_subspaces
[i
].sort
,
6109 pa_def_subspaces
[i
].access
,
6110 pa_def_subspaces
[i
].space_index
,
6111 pa_def_subspaces
[i
].alignment
,
6112 pa_def_subspaces
[i
].quadrant
,
6120 /* Create a new space NAME, with the appropriate flags as defined
6121 by the given parameters. */
6123 static sd_chain_struct
*
6124 create_new_space (name
, spnum
, loadable
, defined
, private,
6125 sort
, seg
, user_defined
)
6135 sd_chain_struct
*chain_entry
;
6137 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6139 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6142 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6143 strcpy (SPACE_NAME (chain_entry
), name
);
6144 SPACE_DEFINED (chain_entry
) = defined
;
6145 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6146 SPACE_SPNUM (chain_entry
) = spnum
;
6148 chain_entry
->sd_seg
= seg
;
6149 chain_entry
->sd_last_subseg
= -1;
6150 chain_entry
->sd_subspaces
= NULL
;
6151 chain_entry
->sd_next
= NULL
;
6153 /* Find spot for the new space based on its sort key. */
6154 if (!space_dict_last
)
6155 space_dict_last
= chain_entry
;
6157 if (space_dict_root
== NULL
)
6158 space_dict_root
= chain_entry
;
6161 sd_chain_struct
*chain_pointer
;
6162 sd_chain_struct
*prev_chain_pointer
;
6164 chain_pointer
= space_dict_root
;
6165 prev_chain_pointer
= NULL
;
6167 while (chain_pointer
)
6169 prev_chain_pointer
= chain_pointer
;
6170 chain_pointer
= chain_pointer
->sd_next
;
6173 /* At this point we've found the correct place to add the new
6174 entry. So add it and update the linked lists as appropriate. */
6175 if (prev_chain_pointer
)
6177 chain_entry
->sd_next
= chain_pointer
;
6178 prev_chain_pointer
->sd_next
= chain_entry
;
6182 space_dict_root
= chain_entry
;
6183 chain_entry
->sd_next
= chain_pointer
;
6186 if (chain_entry
->sd_next
== NULL
)
6187 space_dict_last
= chain_entry
;
6190 /* This is here to catch predefined spaces which do not get
6191 modified by the user's input. Another call is found at
6192 the bottom of pa_parse_space_stmt to handle cases where
6193 the user modifies a predefined space. */
6194 #ifdef obj_set_section_attributes
6195 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6201 /* Create a new subspace NAME, with the appropriate flags as defined
6202 by the given parameters.
6204 Add the new subspace to the subspace dictionary chain in numerical
6205 order as defined by the SORT entries. */
6207 static ssd_chain_struct
*
6208 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6209 dup_common
, is_zero
, sort
, access
, space_index
,
6210 alignment
, quadrant
, seg
)
6211 sd_chain_struct
*space
;
6213 int loadable
, code_only
, common
, dup_common
, is_zero
;
6221 ssd_chain_struct
*chain_entry
;
6223 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6225 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6227 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6228 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6230 /* Initialize subspace_defined. When we hit a .subspace directive
6231 we'll set it to 1 which "locks-in" the subspace attributes. */
6232 SUBSPACE_DEFINED (chain_entry
) = 0;
6234 chain_entry
->ssd_subseg
= 0;
6235 chain_entry
->ssd_seg
= seg
;
6236 chain_entry
->ssd_next
= NULL
;
6238 /* Find spot for the new subspace based on its sort key. */
6239 if (space
->sd_subspaces
== NULL
)
6240 space
->sd_subspaces
= chain_entry
;
6243 ssd_chain_struct
*chain_pointer
;
6244 ssd_chain_struct
*prev_chain_pointer
;
6246 chain_pointer
= space
->sd_subspaces
;
6247 prev_chain_pointer
= NULL
;
6249 while (chain_pointer
)
6251 prev_chain_pointer
= chain_pointer
;
6252 chain_pointer
= chain_pointer
->ssd_next
;
6255 /* Now we have somewhere to put the new entry. Insert it and update
6257 if (prev_chain_pointer
)
6259 chain_entry
->ssd_next
= chain_pointer
;
6260 prev_chain_pointer
->ssd_next
= chain_entry
;
6264 space
->sd_subspaces
= chain_entry
;
6265 chain_entry
->ssd_next
= chain_pointer
;
6269 #ifdef obj_set_subsection_attributes
6270 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6277 /* Update the information for the given subspace based upon the
6278 various arguments. Return the modified subspace chain entry. */
6280 static ssd_chain_struct
*
6281 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6282 zero
, access
, space_index
, alignment
, quadrant
, section
)
6283 sd_chain_struct
*space
;
6297 ssd_chain_struct
*chain_entry
;
6299 chain_entry
= is_defined_subspace (name
);
6301 #ifdef obj_set_subsection_attributes
6302 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6309 /* Return the space chain entry for the space with the name NAME or
6310 NULL if no such space exists. */
6312 static sd_chain_struct
*
6313 is_defined_space (name
)
6316 sd_chain_struct
*chain_pointer
;
6318 for (chain_pointer
= space_dict_root
;
6320 chain_pointer
= chain_pointer
->sd_next
)
6322 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6323 return chain_pointer
;
6326 /* No mapping from segment to space was found. Return NULL. */
6330 /* Find and return the space associated with the given seg. If no mapping
6331 from the given seg to a space is found, then return NULL.
6333 Unlike subspaces, the number of spaces is not expected to grow much,
6334 so a linear exhaustive search is OK here. */
6336 static sd_chain_struct
*
6337 pa_segment_to_space (seg
)
6340 sd_chain_struct
*space_chain
;
6342 /* Walk through each space looking for the correct mapping. */
6343 for (space_chain
= space_dict_root
;
6345 space_chain
= space_chain
->sd_next
)
6347 if (space_chain
->sd_seg
== seg
)
6351 /* Mapping was not found. Return NULL. */
6355 /* Return the space chain entry for the subspace with the name NAME or
6356 NULL if no such subspace exists.
6358 Uses a linear search through all the spaces and subspaces, this may
6359 not be appropriate if we ever being placing each function in its
6362 static ssd_chain_struct
*
6363 is_defined_subspace (name
)
6366 sd_chain_struct
*space_chain
;
6367 ssd_chain_struct
*subspace_chain
;
6369 /* Walk through each space. */
6370 for (space_chain
= space_dict_root
;
6372 space_chain
= space_chain
->sd_next
)
6374 /* Walk through each subspace looking for a name which matches. */
6375 for (subspace_chain
= space_chain
->sd_subspaces
;
6377 subspace_chain
= subspace_chain
->ssd_next
)
6378 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6379 return subspace_chain
;
6382 /* Subspace wasn't found. Return NULL. */
6386 /* Find and return the subspace associated with the given seg. If no
6387 mapping from the given seg to a subspace is found, then return NULL.
6389 If we ever put each procedure/function within its own subspace
6390 (to make life easier on the compiler and linker), then this will have
6391 to become more efficient. */
6393 static ssd_chain_struct
*
6394 pa_subsegment_to_subspace (seg
, subseg
)
6398 sd_chain_struct
*space_chain
;
6399 ssd_chain_struct
*subspace_chain
;
6401 /* Walk through each space. */
6402 for (space_chain
= space_dict_root
;
6404 space_chain
= space_chain
->sd_next
)
6406 if (space_chain
->sd_seg
== seg
)
6408 /* Walk through each subspace within each space looking for
6409 the correct mapping. */
6410 for (subspace_chain
= space_chain
->sd_subspaces
;
6412 subspace_chain
= subspace_chain
->ssd_next
)
6413 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6414 return subspace_chain
;
6418 /* No mapping from subsegment to subspace found. Return NULL. */
6422 /* Given a number, try and find a space with the name number.
6424 Return a pointer to a space dictionary chain entry for the space
6425 that was found or NULL on failure. */
6427 static sd_chain_struct
*
6428 pa_find_space_by_number (number
)
6431 sd_chain_struct
*space_chain
;
6433 for (space_chain
= space_dict_root
;
6435 space_chain
= space_chain
->sd_next
)
6437 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6441 /* No appropriate space found. Return NULL. */
6445 /* Return the starting address for the given subspace. If the starting
6446 address is unknown then return zero. */
6449 pa_subspace_start (space
, quadrant
)
6450 sd_chain_struct
*space
;
6453 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6454 is not correct for the PA OSF1 port. */
6455 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6457 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6464 /* FIXME. Needs documentation. */
6466 pa_next_subseg (space
)
6467 sd_chain_struct
*space
;
6470 space
->sd_last_subseg
++;
6471 return space
->sd_last_subseg
;
6475 /* Helper function for pa_stringer. Used to find the end of
6482 unsigned int c
= *s
& CHAR_MASK
;
6485 /* We must have a valid space and subspace. */
6486 pa_check_current_space_and_subspace ();
6500 /* Handle a .STRING type pseudo-op. */
6503 pa_stringer (append_zero
)
6506 char *s
, num_buf
[4];
6510 /* Preprocess the string to handle PA-specific escape sequences.
6511 For example, \xDD where DD is a hexidecimal number should be
6512 changed to \OOO where OOO is an octal number. */
6514 /* Skip the opening quote. */
6515 s
= input_line_pointer
+ 1;
6517 while (is_a_char (c
= pa_stringer_aux (s
++)))
6524 /* Handle \x<num>. */
6527 unsigned int number
;
6532 /* Get pas the 'x'. */
6534 for (num_digit
= 0, number
= 0, dg
= *s
;
6536 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6537 || (dg
>= 'A' && dg
<= 'F'));
6541 number
= number
* 16 + dg
- '0';
6542 else if (dg
>= 'a' && dg
<= 'f')
6543 number
= number
* 16 + dg
- 'a' + 10;
6545 number
= number
* 16 + dg
- 'A' + 10;
6555 sprintf (num_buf
, "%02o", number
);
6558 sprintf (num_buf
, "%03o", number
);
6561 for (i
= 0; i
<= num_digit
; i
++)
6562 s_start
[i
] = num_buf
[i
];
6566 /* This might be a "\"", skip over the escaped char. */
6573 stringer (append_zero
);
6574 pa_undefine_label ();
6577 /* Handle a .VERSION pseudo-op. */
6584 pa_undefine_label ();
6589 /* Handle a .COMPILER pseudo-op. */
6592 pa_compiler (unused
)
6595 obj_som_compiler (0);
6596 pa_undefine_label ();
6601 /* Handle a .COPYRIGHT pseudo-op. */
6604 pa_copyright (unused
)
6608 pa_undefine_label ();
6611 /* Just like a normal cons, but when finished we have to undefine
6612 the latest space label. */
6619 pa_undefine_label ();
6622 /* Switch to the data space. As usual delete our label. */
6629 current_space
= is_defined_space ("$PRIVATE$");
6631 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6634 pa_undefine_label ();
6637 /* Like float_cons, but we need to undefine our label. */
6640 pa_float_cons (float_type
)
6643 float_cons (float_type
);
6644 pa_undefine_label ();
6647 /* Like s_fill, but delete our label when finished. */
6654 /* We must have a valid space and subspace. */
6655 pa_check_current_space_and_subspace ();
6659 pa_undefine_label ();
6662 /* Like lcomm, but delete our label when finished. */
6665 pa_lcomm (needs_align
)
6669 /* We must have a valid space and subspace. */
6670 pa_check_current_space_and_subspace ();
6673 s_lcomm (needs_align
);
6674 pa_undefine_label ();
6677 /* Like lsym, but delete our label when finished. */
6684 /* We must have a valid space and subspace. */
6685 pa_check_current_space_and_subspace ();
6689 pa_undefine_label ();
6692 /* Switch to the text space. Like s_text, but delete our
6693 label when finished. */
6699 current_space
= is_defined_space ("$TEXT$");
6701 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6705 pa_undefine_label ();
6708 /* On the PA relocations which involve function symbols must not be
6709 adjusted. This so that the linker can know when/how to create argument
6710 relocation stubs for indirect calls and calls to static functions.
6712 "T" field selectors create DLT relative fixups for accessing
6713 globals and statics in PIC code; each DLT relative fixup creates
6714 an entry in the DLT table. The entries contain the address of
6715 the final target (eg accessing "foo" would create a DLT entry
6716 with the address of "foo").
6718 Unfortunately, the HP linker doesn't take into account any addend
6719 when generating the DLT; so accessing $LIT$+8 puts the address of
6720 $LIT$ into the DLT rather than the address of $LIT$+8.
6722 The end result is we can't perform relocation symbol reductions for
6723 any fixup which creates entries in the DLT (eg they use "T" field
6726 Reject reductions involving symbols with external scope; such
6727 reductions make life a living hell for object file editors.
6729 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6730 the code space. The SOM BFD backend doesn't know how to pull the
6731 right bits out of an instruction. */
6734 hppa_fix_adjustable (fixp
)
6737 struct hppa_fix_struct
*hppa_fix
;
6739 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6742 /* Reject reductions of symbols in 32bit relocs. */
6743 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
6746 /* Reject reductions of symbols in sym1-sym2 expressions when
6747 the fixup will occur in a CODE subspace.
6749 XXX FIXME: Long term we probably want to reject all of these;
6750 for example reducing in the debug section would lose if we ever
6751 supported using the optimizing hp linker. */
6754 && (hppa_fix
->segment
->flags
& SEC_CODE
))
6756 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
6757 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
6761 /* We can't adjust any relocs that use LR% and RR% field selectors.
6762 That confuses the HP linker. */
6763 if (hppa_fix
->fx_r_field
== e_lrsel
6764 || hppa_fix
->fx_r_field
== e_rrsel
6765 || hppa_fix
->fx_r_field
== e_nlrsel
)
6769 /* Reject reductions of symbols in DLT relative relocs,
6770 relocations with plabels. */
6771 if (hppa_fix
->fx_r_field
== e_tsel
6772 || hppa_fix
->fx_r_field
== e_ltsel
6773 || hppa_fix
->fx_r_field
== e_rtsel
6774 || hppa_fix
->fx_r_field
== e_psel
6775 || hppa_fix
->fx_r_field
== e_rpsel
6776 || hppa_fix
->fx_r_field
== e_lpsel
)
6779 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
6782 /* Reject absolute calls (jumps). */
6783 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
6786 /* Reject reductions of function symbols. */
6787 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
6793 /* Return nonzero if the fixup in FIXP will require a relocation,
6794 even it if appears that the fixup could be completely handled
6798 hppa_force_relocation (fixp
)
6801 struct hppa_fix_struct
*hppa_fixp
;
6804 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6806 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
6807 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
6808 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
6809 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
6810 || fixp
->fx_r_type
== R_HPPA_END_TRY
6811 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
6812 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
6816 #define arg_reloc_stub_needed(CALLER, CALLEE) \
6817 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6820 /* It is necessary to force PC-relative calls/jumps to have a relocation
6821 entry if they're going to need either a argument relocation or long
6822 call stub. FIXME. Can't we need the same for absolute calls? */
6823 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
6824 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
6825 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
6826 hppa_fixp
->fx_arg_reloc
)))
6829 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
6830 - md_pcrel_from (fixp
));
6831 /* Now check and see if we're going to need a long-branch stub. */
6832 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
6833 && (distance
> 262143 || distance
< -262144))
6836 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
6838 #undef arg_reloc_stub_needed
6840 /* No need (yet) to force another relocations to be emitted. */
6844 /* Now for some ELF specific code. FIXME. */
6846 /* Mark the end of a function so that it's possible to compute
6847 the size of the function in hppa_elf_final_processing. */
6850 hppa_elf_mark_end_of_function ()
6852 /* ELF does not have EXIT relocations. All we do is create a
6853 temporary symbol marking the end of the function. */
6854 char *name
= (char *)
6855 xmalloc (strlen ("L$\001end_") +
6856 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
6862 strcpy (name
, "L$\001end_");
6863 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
6865 /* If we have a .exit followed by a .procend, then the
6866 symbol will have already been defined. */
6867 symbolP
= symbol_find (name
);
6870 /* The symbol has already been defined! This can
6871 happen if we have a .exit followed by a .procend.
6873 This is *not* an error. All we want to do is free
6874 the memory we just allocated for the name and continue. */
6879 /* symbol value should be the offset of the
6880 last instruction of the function */
6881 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
6885 S_CLEAR_EXTERNAL (symbolP
);
6886 symbol_table_insert (symbolP
);
6890 last_call_info
->end_symbol
= symbolP
;
6892 as_bad (_("Symbol '%s' could not be created."), name
);
6896 as_bad (_("No memory for symbol name."));
6900 /* For ELF, this function serves one purpose: to setup the st_size
6901 field of STT_FUNC symbols. To do this, we need to scan the
6902 call_info structure list, determining st_size in by taking the
6903 difference in the address of the beginning/end marker symbols. */
6906 elf_hppa_final_processing ()
6908 struct call_info
*call_info_pointer
;
6910 for (call_info_pointer
= call_info_root
;
6912 call_info_pointer
= call_info_pointer
->ci_next
)
6914 elf_symbol_type
*esym
6915 = ((elf_symbol_type
*)
6916 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
6917 esym
->internal_elf_sym
.st_size
=
6918 S_GET_VALUE (call_info_pointer
->end_symbol
)
6919 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;