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
63 #define UNWIND_SECTION_NAME ".PARISC.unwind"
67 /* Names of various debugging spaces/subspaces. */
68 #define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
69 #define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
70 #define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
71 #define UNWIND_SECTION_NAME "$UNWIND$"
73 /* Object file formats specify relocation types. */
74 typedef int reloc_type
;
76 /* SOM objects can have both a version string and a copyright string. */
77 #define obj_version obj_som_version
78 #define obj_copyright obj_som_copyright
80 /* How to generate a relocation. */
81 #define hppa_gen_reloc_type hppa_som_gen_reloc_type
83 /* Object file formats specify BFD symbol types. */
84 typedef som_symbol_type obj_symbol_type
;
86 /* This apparently isn't in older versions of hpux reloc.h. */
88 #define R_DLT_REL 0x78
100 /* Various structures and types used internally in tc-hppa.c. */
102 /* Unwind table and descriptor. FIXME: Sync this with GDB version. */
106 unsigned int cannot_unwind
:1;
107 unsigned int millicode
:1;
108 unsigned int millicode_save_rest
:1;
109 unsigned int region_desc
:2;
110 unsigned int save_sr
:2;
111 unsigned int entry_fr
:4;
112 unsigned int entry_gr
:5;
113 unsigned int args_stored
:1;
114 unsigned int call_fr
:5;
115 unsigned int call_gr
:5;
116 unsigned int save_sp
:1;
117 unsigned int save_rp
:1;
118 unsigned int save_rp_in_frame
:1;
119 unsigned int extn_ptr_defined
:1;
120 unsigned int cleanup_defined
:1;
122 unsigned int hpe_interrupt_marker
:1;
123 unsigned int hpux_interrupt_marker
:1;
124 unsigned int reserved
:3;
125 unsigned int frame_size
:27;
130 /* Starting and ending offsets of the region described by
132 unsigned int start_offset
;
133 unsigned int end_offset
;
134 struct unwind_desc descriptor
;
137 /* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
138 control the entry and exit code they generate. It is also used in
139 creation of the correct stack unwind descriptors.
141 NOTE: GAS does not support .enter and .leave for the generation of
142 prologues and epilogues. FIXME.
144 The fields in structure roughly correspond to the arguments available on the
145 .callinfo pseudo-op. */
149 /* The unwind descriptor being built. */
150 struct unwind_table ci_unwind
;
152 /* Name of this function. */
153 symbolS
*start_symbol
;
155 /* (temporary) symbol used to mark the end of this function. */
158 /* Next entry in the chain. */
159 struct call_info
*ci_next
;
162 /* Operand formats for FP instructions. Note not all FP instructions
163 allow all four formats to be used (for example fmpysub only allows
167 SGL
, DBL
, ILLEGAL_FMT
, QUAD
, W
, UW
, DW
, UDW
, QW
, UQW
171 /* This fully describes the symbol types which may be attached to
172 an EXPORT or IMPORT directive. Only SOM uses this formation
173 (ELF has no need for it). */
177 SYMBOL_TYPE_ABSOLUTE
,
181 SYMBOL_TYPE_MILLICODE
,
183 SYMBOL_TYPE_PRI_PROG
,
184 SYMBOL_TYPE_SEC_PROG
,
188 /* This structure contains information needed to assemble
189 individual instructions. */
192 /* Holds the opcode after parsing by pa_ip. */
193 unsigned long opcode
;
195 /* Holds an expression associated with the current instruction. */
198 /* Does this instruction use PC-relative addressing. */
201 /* Floating point formats for operand1 and operand2. */
202 fp_operand_format fpof1
;
203 fp_operand_format fpof2
;
206 /* Holds the field selector for this instruction
207 (for example L%, LR%, etc). */
210 /* Holds any argument relocation bits associated with this
211 instruction. (instruction should be some sort of call). */
214 /* The format specification for this instruction. */
217 /* The relocation (if any) associated with this instruction. */
221 /* PA-89 floating point registers are arranged like this:
224 +--------------+--------------+
225 | 0 or 16L | 16 or 16R |
226 +--------------+--------------+
227 | 1 or 17L | 17 or 17R |
228 +--------------+--------------+
236 +--------------+--------------+
237 | 14 or 30L | 30 or 30R |
238 +--------------+--------------+
239 | 15 or 31L | 31 or 31R |
240 +--------------+--------------+
243 The following is a version of pa_parse_number that
244 handles the L/R notation and returns the correct
245 value to put into the instruction register field.
246 The correct value to put into the instruction is
247 encoded in the structure 'pa_11_fp_reg_struct'. */
249 struct pa_11_fp_reg_struct
251 /* The register number. */
258 /* Additional information needed to build argument relocation stubs. */
261 /* The argument relocation specification. */
262 unsigned int arg_reloc
;
264 /* Number of arguments. */
265 unsigned int arg_count
;
269 /* This structure defines an entry in the subspace dictionary
272 struct subspace_dictionary_chain
274 /* Nonzero if this space has been defined by the user code. */
275 unsigned int ssd_defined
;
277 /* Name of this subspace. */
280 /* GAS segment and subsegment associated with this subspace. */
284 /* Next space in the subspace dictionary chain. */
285 struct subspace_dictionary_chain
*ssd_next
;
288 typedef struct subspace_dictionary_chain ssd_chain_struct
;
290 /* This structure defines an entry in the subspace dictionary
293 struct space_dictionary_chain
295 /* Nonzero if this space has been defined by the user code or
296 as a default space. */
297 unsigned int sd_defined
;
299 /* Nonzero if this spaces has been defined by the user code. */
300 unsigned int sd_user_defined
;
302 /* The space number (or index). */
303 unsigned int sd_spnum
;
305 /* The name of this subspace. */
308 /* GAS segment to which this subspace corresponds. */
311 /* Current subsegment number being used. */
314 /* The chain of subspaces contained within this space. */
315 ssd_chain_struct
*sd_subspaces
;
317 /* The next entry in the space dictionary chain. */
318 struct space_dictionary_chain
*sd_next
;
321 typedef struct space_dictionary_chain sd_chain_struct
;
323 /* This structure defines attributes of the default subspace
324 dictionary entries. */
326 struct default_subspace_dict
328 /* Name of the subspace. */
331 /* FIXME. Is this still needed? */
334 /* Nonzero if this subspace is loadable. */
337 /* Nonzero if this subspace contains only code. */
340 /* Nonzero if this is a common subspace. */
343 /* Nonzero if this is a common subspace which allows symbols
344 to be multiply defined. */
347 /* Nonzero if this subspace should be zero filled. */
350 /* Sort key for this subspace. */
353 /* Access control bits for this subspace. Can represent RWX access
354 as well as privilege level changes for gateways. */
357 /* Index of containing space. */
360 /* Alignment (in bytes) of this subspace. */
363 /* Quadrant within space where this subspace should be loaded. */
366 /* An index into the default spaces array. */
369 /* Subsegment associated with this subspace. */
373 /* This structure defines attributes of the default space
374 dictionary entries. */
376 struct default_space_dict
378 /* Name of the space. */
381 /* Space number. It is possible to identify spaces within
382 assembly code numerically! */
385 /* Nonzero if this space is loadable. */
388 /* Nonzero if this space is "defined". FIXME is still needed */
391 /* Nonzero if this space can not be shared. */
394 /* Sort key for this space. */
397 /* Segment associated with this space. */
402 /* Structure for previous label tracking. Needed so that alignments,
403 callinfo declarations, etc can be easily attached to a particular
405 typedef struct label_symbol_struct
407 struct symbol
*lss_label
;
409 sd_chain_struct
*lss_space
;
414 struct label_symbol_struct
*lss_next
;
418 /* Extra information needed to perform fixups (relocations) on the PA. */
419 struct hppa_fix_struct
421 /* The field selector. */
422 enum hppa_reloc_field_selector_type_alt fx_r_field
;
427 /* Format of fixup. */
430 /* Argument relocation bits. */
433 /* The segment this fixup appears in. */
437 /* Structure to hold information about predefined registers. */
445 /* This structure defines the mapping from a FP condition string
446 to a condition number which can be recorded in an instruction. */
453 /* This structure defines a mapping from a field selector
454 string to a field selector type. */
455 struct selector_entry
461 /* Prototypes for functions local to tc-hppa.c. */
464 static void pa_check_current_space_and_subspace
PARAMS ((void));
467 static fp_operand_format pa_parse_fp_format
PARAMS ((char **s
));
468 static void pa_cons
PARAMS ((int));
469 static void pa_data
PARAMS ((int));
470 static void pa_float_cons
PARAMS ((int));
471 static void pa_fill
PARAMS ((int));
472 static void pa_lcomm
PARAMS ((int));
473 static void pa_lsym
PARAMS ((int));
474 static void pa_stringer
PARAMS ((int));
475 static void pa_text
PARAMS ((int));
476 static void pa_version
PARAMS ((int));
477 static int pa_parse_fp_cmp_cond
PARAMS ((char **));
478 static int get_expression
PARAMS ((char *));
479 static int pa_get_absolute_expression
PARAMS ((struct pa_it
*, char **));
480 static int evaluate_absolute
PARAMS ((struct pa_it
*));
481 static unsigned int pa_build_arg_reloc
PARAMS ((char *));
482 static unsigned int pa_align_arg_reloc
PARAMS ((unsigned int, unsigned int));
483 static int pa_parse_nullif
PARAMS ((char **));
484 static int pa_parse_nonneg_cmpsub_cmpltr
PARAMS ((char **, int));
485 static int pa_parse_neg_cmpsub_cmpltr
PARAMS ((char **, int));
486 static int pa_parse_neg_add_cmpltr
PARAMS ((char **, int));
487 static int pa_parse_nonneg_add_cmpltr
PARAMS ((char **, int));
488 static void pa_block
PARAMS ((int));
489 static void pa_brtab
PARAMS ((int));
490 static void pa_try
PARAMS ((int));
491 static void pa_call
PARAMS ((int));
492 static void pa_call_args
PARAMS ((struct call_desc
*));
493 static void pa_callinfo
PARAMS ((int));
494 static void pa_code
PARAMS ((int));
495 static void pa_comm
PARAMS ((int));
496 static void pa_copyright
PARAMS ((int));
497 static void pa_end
PARAMS ((int));
498 static void pa_enter
PARAMS ((int));
499 static void pa_entry
PARAMS ((int));
500 static void pa_equ
PARAMS ((int));
501 static void pa_exit
PARAMS ((int));
502 static void pa_export
PARAMS ((int));
503 static void pa_type_args
PARAMS ((symbolS
*, int));
504 static void pa_import
PARAMS ((int));
505 static void pa_label
PARAMS ((int));
506 static void pa_leave
PARAMS ((int));
507 static void pa_level
PARAMS ((int));
508 static void pa_origin
PARAMS ((int));
509 static void pa_proc
PARAMS ((int));
510 static void pa_procend
PARAMS ((int));
511 static void pa_param
PARAMS ((int));
512 static void pa_undefine_label
PARAMS ((void));
513 static int need_pa11_opcode
PARAMS ((struct pa_it
*,
514 struct pa_11_fp_reg_struct
*));
515 static int pa_parse_number
PARAMS ((char **, struct pa_11_fp_reg_struct
*));
516 static label_symbol_struct
*pa_get_label
PARAMS ((void));
518 static void pa_compiler
PARAMS ((int));
519 static void pa_align
PARAMS ((int));
520 static void pa_space
PARAMS ((int));
521 static void pa_spnum
PARAMS ((int));
522 static void pa_subspace
PARAMS ((int));
523 static sd_chain_struct
*create_new_space
PARAMS ((char *, int, int,
526 static ssd_chain_struct
*create_new_subspace
PARAMS ((sd_chain_struct
*,
531 static ssd_chain_struct
*update_subspace
PARAMS ((sd_chain_struct
*,
532 char *, int, int, int,
536 static sd_chain_struct
*is_defined_space
PARAMS ((char *));
537 static ssd_chain_struct
*is_defined_subspace
PARAMS ((char *));
538 static sd_chain_struct
*pa_segment_to_space
PARAMS ((asection
*));
539 static ssd_chain_struct
*pa_subsegment_to_subspace
PARAMS ((asection
*,
541 static sd_chain_struct
*pa_find_space_by_number
PARAMS ((int));
542 static unsigned int pa_subspace_start
PARAMS ((sd_chain_struct
*, int));
543 static sd_chain_struct
*pa_parse_space_stmt
PARAMS ((char *, int));
544 static int pa_next_subseg
PARAMS ((sd_chain_struct
*));
545 static void pa_spaces_begin
PARAMS ((void));
547 static void pa_ip
PARAMS ((char *));
548 static void fix_new_hppa
PARAMS ((fragS
*, int, int, symbolS
*,
549 long, expressionS
*, int,
550 bfd_reloc_code_real_type
,
551 enum hppa_reloc_field_selector_type_alt
,
553 static int is_end_of_statement
PARAMS ((void));
554 static int reg_name_search
PARAMS ((char *));
555 static int pa_chk_field_selector
PARAMS ((char **));
556 static int is_same_frag
PARAMS ((fragS
*, fragS
*));
557 static void process_exit
PARAMS ((void));
558 static int log2
PARAMS ((int));
559 static unsigned int pa_stringer_aux
PARAMS ((char *));
562 static void hppa_elf_mark_end_of_function
PARAMS ((void));
563 static void pa_build_unwind_subspace
PARAMS ((struct call_info
*));
566 /* File and gloally scoped variable declarations. */
569 /* Root and final entry in the space chain. */
570 static sd_chain_struct
*space_dict_root
;
571 static sd_chain_struct
*space_dict_last
;
573 /* The current space and subspace. */
574 static sd_chain_struct
*current_space
;
575 static ssd_chain_struct
*current_subspace
;
578 /* Root of the call_info chain. */
579 static struct call_info
*call_info_root
;
581 /* The last call_info (for functions) structure
582 seen so it can be associated with fixups and
584 static struct call_info
*last_call_info
;
586 /* The last call description (for actual calls). */
587 static struct call_desc last_call_desc
;
589 /* handle of the OPCODE hash table */
590 static struct hash_control
*op_hash
= NULL
;
592 /* This array holds the chars that always start a comment. If the
593 pre-processor is disabled, these aren't very useful. */
594 const char comment_chars
[] = ";";
596 /* Table of pseudo ops for the PA. FIXME -- how many of these
597 are now redundant with the overall GAS and the object file
599 const pseudo_typeS md_pseudo_table
[] =
601 /* align pseudo-ops on the PA specify the actual alignment requested,
602 not the log2 of the requested alignment. */
604 {"align", pa_align
, 8},
607 {"align", s_align_bytes
, 8},
609 {"begin_brtab", pa_brtab
, 1},
610 {"begin_try", pa_try
, 1},
611 {"block", pa_block
, 1},
612 {"blockz", pa_block
, 0},
613 {"byte", pa_cons
, 1},
614 {"call", pa_call
, 0},
615 {"callinfo", pa_callinfo
, 0},
616 {"code", pa_code
, 0},
617 {"comm", pa_comm
, 0},
619 {"compiler", pa_compiler
, 0},
621 {"copyright", pa_copyright
, 0},
622 {"data", pa_data
, 0},
623 {"double", pa_float_cons
, 'd'},
624 {"dword", pa_cons
, 8},
626 {"end_brtab", pa_brtab
, 0},
627 {"end_try", pa_try
, 0},
628 {"enter", pa_enter
, 0},
629 {"entry", pa_entry
, 0},
631 {"exit", pa_exit
, 0},
632 {"export", pa_export
, 0},
633 {"fill", pa_fill
, 0},
634 {"float", pa_float_cons
, 'f'},
635 {"half", pa_cons
, 2},
636 {"import", pa_import
, 0},
638 {"label", pa_label
, 0},
639 {"lcomm", pa_lcomm
, 0},
640 {"leave", pa_leave
, 0},
641 {"level", pa_level
, 0},
642 {"long", pa_cons
, 4},
643 {"lsym", pa_lsym
, 0},
645 {"nsubspa", pa_subspace
, 1},
647 {"octa", pa_cons
, 16},
648 {"org", pa_origin
, 0},
649 {"origin", pa_origin
, 0},
650 {"param", pa_param
, 0},
651 {"proc", pa_proc
, 0},
652 {"procend", pa_procend
, 0},
653 {"quad", pa_cons
, 8},
655 {"short", pa_cons
, 2},
656 {"single", pa_float_cons
, 'f'},
658 {"space", pa_space
, 0},
659 {"spnum", pa_spnum
, 0},
661 {"string", pa_stringer
, 0},
662 {"stringz", pa_stringer
, 1},
664 {"subspa", pa_subspace
, 0},
666 {"text", pa_text
, 0},
667 {"version", pa_version
, 0},
668 {"word", pa_cons
, 4},
672 /* This array holds the chars that only start a comment at the beginning of
673 a line. If the line seems to have the form '# 123 filename'
674 .line and .file directives will appear in the pre-processed output.
676 Note that input_file.c hand checks for '#' at the beginning of the
677 first line of the input file. This is because the compiler outputs
678 #NO_APP at the beginning of its output.
680 Also note that C style comments will always work. */
681 const char line_comment_chars
[] = "#";
683 /* This array holds the characters which act as line separators. */
684 const char line_separator_chars
[] = "!";
686 /* Chars that can be used to separate mant from exp in floating point nums. */
687 const char EXP_CHARS
[] = "eE";
689 /* Chars that mean this number is a floating point constant.
690 As in 0f12.456 or 0d1.2345e12.
692 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
693 changed in read.c. Ideally it shouldn't hae to know abou it at
694 all, but nothing is ideal around here. */
695 const char FLT_CHARS
[] = "rRsSfFdDxXpP";
697 static struct pa_it the_insn
;
699 /* Points to the end of an expression just parsed by get_expressoin
700 and friends. FIXME. This shouldn't be handled with a file-global
702 static char *expr_end
;
704 /* Nonzero if a .callinfo appeared within the current procedure. */
705 static int callinfo_found
;
707 /* Nonzero if the assembler is currently within a .entry/.exit pair. */
708 static int within_entry_exit
;
710 /* Nonzero if the assembler is currently within a procedure definition. */
711 static int within_procedure
;
713 /* Handle on strucutre which keep track of the last symbol
714 seen in each subspace. */
715 static label_symbol_struct
*label_symbols_rootp
= NULL
;
717 /* Holds the last field selector. */
718 static int hppa_field_selector
;
721 /* A dummy bfd symbol so that all relocations have symbols of some kind. */
722 static symbolS
*dummy_symbol
;
725 /* Nonzero if errors are to be printed. */
726 static int print_errors
= 1;
728 /* List of registers that are pre-defined:
730 Each general register has one predefined name of the form
731 %r<REGNUM> which has the value <REGNUM>.
733 Space and control registers are handled in a similar manner,
734 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
736 Likewise for the floating point registers, but of the form
737 %fr<REGNUM>. Floating point registers have additional predefined
738 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
739 again have the value <REGNUM>.
741 Many registers also have synonyms:
743 %r26 - %r23 have %arg0 - %arg3 as synonyms
744 %r28 - %r29 have %ret0 - %ret1 as synonyms
745 %r30 has %sp as a synonym
746 %r27 has %dp as a synonym
747 %r2 has %rp as a synonym
749 Almost every control register has a synonym; they are not listed
752 The table is sorted. Suitable for searching by a binary search. */
754 static const struct pd_reg pre_defined_registers
[] =
954 /* This table is sorted by order of the length of the string. This is
955 so we check for <> before we check for <. If we had a <> and checked
956 for < first, we would get a false match. */
957 static const struct fp_cond_map fp_cond_map
[] =
993 static const struct selector_entry selector_table
[] =
1018 /* default space and subspace dictionaries */
1020 #define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1021 #define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1023 /* pre-defined subsegments (subspaces) for the HPPA. */
1024 #define SUBSEG_CODE 0
1025 #define SUBSEG_LIT 1
1026 #define SUBSEG_MILLI 2
1027 #define SUBSEG_DATA 0
1028 #define SUBSEG_BSS 2
1029 #define SUBSEG_UNWIND 3
1030 #define SUBSEG_GDB_STRINGS 0
1031 #define SUBSEG_GDB_SYMBOLS 1
1033 static struct default_subspace_dict pa_def_subspaces
[] =
1035 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE
},
1036 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA
},
1037 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT
},
1038 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI
},
1039 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS
},
1040 {NULL
, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1043 static struct default_space_dict pa_def_spaces
[] =
1045 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL
},
1046 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL
},
1047 {NULL
, 0, 0, 0, 0, 0, ASEC_NULL
}
1050 /* Misc local definitions used by the assembler. */
1052 /* These macros are used to maintain spaces/subspaces. */
1053 #define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1054 #define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1055 #define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1056 #define SPACE_NAME(space_chain) (space_chain)->sd_name
1058 #define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1059 #define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1062 /* Return nonzero if the string pointed to by S potentially represents
1063 a right or left half of a FP register */
1064 #define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1065 #define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1067 /* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1068 main loop after insertion. */
1070 #define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1072 ((OPCODE) |= (FIELD) << (START)); \
1076 /* Simple range checking for FIELD againt HIGH and LOW bounds.
1077 IGNORE is used to suppress the error message. */
1079 #define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1081 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1084 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1090 #define is_DP_relative(exp) \
1091 ((exp).X_op == O_subtract \
1092 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
1094 #define is_PC_relative(exp) \
1095 ((exp).X_op == O_subtract \
1096 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
1098 /* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1099 always be able to reduce the expression to a constant, so we don't
1100 need real complex handling yet. */
1101 #define is_complex(exp) \
1102 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1104 /* Actual functions to implement the PA specific code for the assembler. */
1106 /* Called before writing the object file. Make sure entry/exit and
1107 proc/procend pairs match. */
1112 if (within_entry_exit
)
1113 as_fatal (_("Missing .exit\n"));
1115 if (within_procedure
)
1116 as_fatal (_("Missing .procend\n"));
1119 /* Returns a pointer to the label_symbol_struct for the current space.
1120 or NULL if no label_symbol_struct exists for the current space. */
1122 static label_symbol_struct
*
1125 label_symbol_struct
*label_chain
;
1127 for (label_chain
= label_symbols_rootp
;
1129 label_chain
= label_chain
->lss_next
)
1132 if (current_space
== label_chain
->lss_space
&& label_chain
->lss_label
)
1136 if (now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
)
1144 /* Defines a label for the current space. If one is already defined,
1145 this function will replace it with the new label. */
1148 pa_define_label (symbol
)
1151 label_symbol_struct
*label_chain
= pa_get_label ();
1154 label_chain
->lss_label
= symbol
;
1157 /* Create a new label entry and add it to the head of the chain. */
1159 = (label_symbol_struct
*) xmalloc (sizeof (label_symbol_struct
));
1160 label_chain
->lss_label
= symbol
;
1162 label_chain
->lss_space
= current_space
;
1165 label_chain
->lss_segment
= now_seg
;
1167 label_chain
->lss_next
= NULL
;
1169 if (label_symbols_rootp
)
1170 label_chain
->lss_next
= label_symbols_rootp
;
1172 label_symbols_rootp
= label_chain
;
1176 /* Removes a label definition for the current space.
1177 If there is no label_symbol_struct entry, then no action is taken. */
1180 pa_undefine_label ()
1182 label_symbol_struct
*label_chain
;
1183 label_symbol_struct
*prev_label_chain
= NULL
;
1185 for (label_chain
= label_symbols_rootp
;
1187 label_chain
= label_chain
->lss_next
)
1191 && current_space
== label_chain
->lss_space
&& label_chain
->lss_label
1194 && now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
1198 /* Remove the label from the chain and free its memory. */
1199 if (prev_label_chain
)
1200 prev_label_chain
->lss_next
= label_chain
->lss_next
;
1202 label_symbols_rootp
= label_chain
->lss_next
;
1207 prev_label_chain
= label_chain
;
1212 /* An HPPA-specific version of fix_new. This is required because the HPPA
1213 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1214 results in the creation of an instance of an hppa_fix_struct. An
1215 hppa_fix_struct stores the extra information along with a pointer to the
1216 original fixS. This is attached to the original fixup via the
1217 tc_fix_data field. */
1220 fix_new_hppa (frag
, where
, size
, add_symbol
, offset
, exp
, pcrel
,
1221 r_type
, r_field
, r_format
, arg_reloc
, unwind_bits
)
1225 symbolS
*add_symbol
;
1229 bfd_reloc_code_real_type r_type
;
1230 enum hppa_reloc_field_selector_type_alt r_field
;
1237 struct hppa_fix_struct
*hppa_fix
= (struct hppa_fix_struct
*)
1238 obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
1241 new_fix
= fix_new_exp (frag
, where
, size
, exp
, pcrel
, r_type
);
1243 new_fix
= fix_new (frag
, where
, size
, add_symbol
, offset
, pcrel
, r_type
);
1244 new_fix
->tc_fix_data
= (void *) hppa_fix
;
1245 hppa_fix
->fx_r_type
= r_type
;
1246 hppa_fix
->fx_r_field
= r_field
;
1247 hppa_fix
->fx_r_format
= r_format
;
1248 hppa_fix
->fx_arg_reloc
= arg_reloc
;
1249 hppa_fix
->segment
= now_seg
;
1251 if (r_type
== R_ENTRY
|| r_type
== R_EXIT
)
1252 new_fix
->fx_offset
= *unwind_bits
;
1255 /* foo-$global$ is used to access non-automatic storage. $global$
1256 is really just a marker and has served its purpose, so eliminate
1257 it now so as not to confuse write.c. */
1258 if (new_fix
->fx_subsy
1259 && !strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$global$"))
1260 new_fix
->fx_subsy
= NULL
;
1263 /* Parse a .byte, .word, .long expression for the HPPA. Called by
1264 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1267 parse_cons_expression_hppa (exp
)
1270 hppa_field_selector
= pa_chk_field_selector (&input_line_pointer
);
1274 /* This fix_new is called by cons via TC_CONS_FIX_NEW.
1275 hppa_field_selector is set by the parse_cons_expression_hppa. */
1278 cons_fix_new_hppa (frag
, where
, size
, exp
)
1284 unsigned int rel_type
;
1286 /* Get a base relocation type. */
1287 if (is_DP_relative (*exp
))
1288 rel_type
= R_HPPA_GOTOFF
;
1289 else if (is_complex (*exp
))
1290 rel_type
= R_HPPA_COMPLEX
;
1294 if (hppa_field_selector
!= e_psel
&& hppa_field_selector
!= e_fsel
)
1295 as_warn (_("Invalid field selector. Assuming F%%."));
1297 fix_new_hppa (frag
, where
, size
,
1298 (symbolS
*) NULL
, (offsetT
) 0, exp
, 0, rel_type
,
1299 hppa_field_selector
, size
* 8, 0, NULL
);
1301 /* Reset field selector to its default state. */
1302 hppa_field_selector
= 0;
1305 /* This function is called once, at assembler startup time. It should
1306 set up all the tables, etc. that the MD part of the assembler will need. */
1311 const char *retval
= NULL
;
1315 last_call_info
= NULL
;
1316 call_info_root
= NULL
;
1318 /* Set the default machine type. */
1319 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
1320 as_warn (_("could not set architecture and machine"));
1322 /* Folding of text and data segments fails miserably on the PA.
1323 Warn user and disable "-R" option. */
1324 if (flag_readonly_data_in_text
)
1326 as_warn (_("-R option not supported on this target."));
1327 flag_readonly_data_in_text
= 0;
1334 op_hash
= hash_new ();
1336 while (i
< NUMOPCODES
)
1338 const char *name
= pa_opcodes
[i
].name
;
1339 retval
= hash_insert (op_hash
, name
, (struct pa_opcode
*) &pa_opcodes
[i
]);
1340 if (retval
!= NULL
&& *retval
!= '\0')
1342 as_fatal (_("Internal error: can't hash `%s': %s\n"), name
, retval
);
1347 if ((pa_opcodes
[i
].match
& pa_opcodes
[i
].mask
)
1348 != pa_opcodes
[i
].match
)
1350 fprintf (stderr
, _("internal error: losing opcode: `%s' \"%s\"\n"),
1351 pa_opcodes
[i
].name
, pa_opcodes
[i
].args
);
1356 while (i
< NUMOPCODES
&& !strcmp (pa_opcodes
[i
].name
, name
));
1360 as_fatal (_("Broken assembler. No assembly attempted."));
1363 /* SOM will change text_section. To make sure we never put
1364 anything into the old one switch to the new one now. */
1365 subseg_set (text_section
, 0);
1369 dummy_symbol
= symbol_find_or_make ("L$dummy");
1370 S_SET_SEGMENT (dummy_symbol
, text_section
);
1371 /* Force the symbol to be converted to a real symbol. */
1372 (void) symbol_get_bfdsym (dummy_symbol
);
1376 /* Assemble a single instruction storing it into a frag. */
1383 /* The had better be something to assemble. */
1386 /* If we are within a procedure definition, make sure we've
1387 defined a label for the procedure; handle case where the
1388 label was defined after the .PROC directive.
1390 Note there's not need to diddle with the segment or fragment
1391 for the label symbol in this case. We have already switched
1392 into the new $CODE$ subspace at this point. */
1393 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
1395 label_symbol_struct
*label_symbol
= pa_get_label ();
1399 if (label_symbol
->lss_label
)
1401 last_call_info
->start_symbol
= label_symbol
->lss_label
;
1402 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
1405 /* Also handle allocation of a fixup to hold the unwind
1406 information when the label appears after the proc/procend. */
1407 if (within_entry_exit
)
1409 char *where
= frag_more (0);
1411 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
1412 NULL
, (offsetT
) 0, NULL
,
1413 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
1414 (int *)&last_call_info
->ci_unwind
.descriptor
);
1419 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1422 as_bad (_("Missing function name for .PROC"));
1425 /* Assemble the instruction. Results are saved into "the_insn". */
1428 /* Get somewhere to put the assembled instrution. */
1431 /* Output the opcode. */
1432 md_number_to_chars (to
, the_insn
.opcode
, 4);
1434 /* If necessary output more stuff. */
1435 if (the_insn
.reloc
!= R_HPPA_NONE
)
1436 fix_new_hppa (frag_now
, (to
- frag_now
->fr_literal
), 4, NULL
,
1437 (offsetT
) 0, &the_insn
.exp
, the_insn
.pcrel
,
1438 the_insn
.reloc
, the_insn
.field_selector
,
1439 the_insn
.format
, the_insn
.arg_reloc
, NULL
);
1442 /* Do the real work for assembling a single instruction. Store results
1443 into the global "the_insn" variable. */
1449 char *error_message
= "";
1450 char *s
, c
, *argstart
, *name
, *save_s
;
1454 int cmpltr
, nullif
, flag
, cond
, num
;
1455 unsigned long opcode
;
1456 struct pa_opcode
*insn
;
1459 /* We must have a valid space and subspace. */
1460 pa_check_current_space_and_subspace ();
1463 /* Convert everything up to the first whitespace character into lower
1465 for (s
= str
; *s
!= ' ' && *s
!= '\t' && *s
!= '\n' && *s
!= '\0'; s
++)
1469 /* Skip to something interesting. */
1470 for (s
= str
; isupper (*s
) || islower (*s
) || (*s
>= '0' && *s
<= '3'); ++s
)
1489 as_fatal (_("Unknown opcode: `%s'"), str
);
1494 /* Look up the opcode in the has table. */
1495 if ((insn
= (struct pa_opcode
*) hash_find (op_hash
, str
)) == NULL
)
1497 as_bad ("Unknown opcode: `%s'", str
);
1506 /* Mark the location where arguments for the instruction start, then
1507 start processing them. */
1511 /* Do some initialization. */
1512 opcode
= insn
->match
;
1513 memset (&the_insn
, 0, sizeof (the_insn
));
1515 the_insn
.reloc
= R_HPPA_NONE
;
1517 /* If this instruction is specific to a particular architecture,
1518 then set a new architecture. */
1519 /* But do not automatically promote to pa2.0. The automatic promotion
1520 crud is for compatability with HP's old assemblers only. */
1522 && bfd_get_mach (stdoutput
) < insn
->arch
)
1524 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, insn
->arch
))
1525 as_warn (_("could not update architecture and machine"));
1527 else if (bfd_get_mach (stdoutput
) < insn
->arch
)
1533 /* Build the opcode, checking as we go to make
1534 sure that the operands match. */
1535 for (args
= insn
->args
;; ++args
)
1540 /* End of arguments. */
1556 /* These must match exactly. */
1565 /* Handle a 5 bit register or control register field at 10. */
1568 num
= pa_parse_number (&s
, 0);
1569 CHECK_FIELD (num
, 31, 0, 0);
1570 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1572 /* Handle a 5 bit register field at 15. */
1574 num
= pa_parse_number (&s
, 0);
1575 CHECK_FIELD (num
, 31, 0, 0);
1576 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1578 /* Handle a 5 bit register field at 31. */
1581 num
= pa_parse_number (&s
, 0);
1582 CHECK_FIELD (num
, 31, 0, 0);
1583 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1585 /* Handle a 5 bit field length at 31. */
1587 num
= pa_get_absolute_expression (&the_insn
, &s
);
1589 CHECK_FIELD (num
, 32, 1, 0);
1590 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
1592 /* Handle a 5 bit immediate at 15. */
1594 num
= pa_get_absolute_expression (&the_insn
, &s
);
1596 CHECK_FIELD (num
, 15, -16, 0);
1597 low_sign_unext (num
, 5, &num
);
1598 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1600 /* Handle a 5 bit immediate at 31. */
1602 num
= pa_get_absolute_expression (&the_insn
, &s
);
1604 CHECK_FIELD (num
, 15, -16, 0)
1605 low_sign_unext (num
, 5, &num
);
1606 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1608 /* Handle an unsigned 5 bit immediate at 31. */
1610 num
= pa_get_absolute_expression (&the_insn
, &s
);
1612 CHECK_FIELD (num
, 31, 0, 0);
1613 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1615 /* Handle an unsigned 5 bit immediate at 15. */
1617 num
= pa_get_absolute_expression (&the_insn
, &s
);
1619 CHECK_FIELD (num
, 31, 0, 0);
1620 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1622 /* Handle a 2 bit space identifier at 17. */
1624 num
= pa_parse_number (&s
, 0);
1625 CHECK_FIELD (num
, 3, 0, 1);
1626 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
1628 /* Handle a 3 bit space identifier at 18. */
1630 num
= pa_parse_number (&s
, 0);
1631 CHECK_FIELD (num
, 7, 0, 1);
1632 dis_assemble_3 (num
, &num
);
1633 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
1635 /* Handle a completer for an indexing load or store. */
1641 while (*s
== ',' && i
< 2)
1644 if (strncasecmp (s
, "sm", 2) == 0)
1651 else if (strncasecmp (s
, "m", 1) == 0)
1653 else if (strncasecmp (s
, "s", 1) == 0)
1656 as_bad (_("Invalid Indexed Load Completer."));
1661 as_bad (_("Invalid Indexed Load Completer Syntax."));
1663 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
1666 /* Handle a short load/store completer. */
1674 if (strncasecmp (s
, "ma", 2) == 0)
1679 else if (strncasecmp (s
, "mb", 2) == 0)
1685 as_bad (_("Invalid Short Load/Store Completer."));
1692 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1696 /* Handle a stbys completer. */
1702 while (*s
== ',' && i
< 2)
1705 if (strncasecmp (s
, "m", 1) == 0)
1707 else if (strncasecmp (s
, "b", 1) == 0)
1709 else if (strncasecmp (s
, "e", 1) == 0)
1712 as_bad (_("Invalid Store Bytes Short Completer"));
1717 as_bad (_("Invalid Store Bytes Short Completer"));
1719 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1722 /* Handle all conditions. */
1728 /* Handle FP compare conditions. */
1730 cond
= pa_parse_fp_cmp_cond (&s
);
1731 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
1733 /* Handle an add condition. */
1742 /* 64 bit conditions. */
1752 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1756 if (strcmp (name
, "=") == 0)
1758 else if (strcmp (name
, "<") == 0)
1760 else if (strcmp (name
, "<=") == 0)
1762 else if (strcasecmp (name
, "nuv") == 0)
1764 else if (strcasecmp (name
, "znv") == 0)
1766 else if (strcasecmp (name
, "sv") == 0)
1768 else if (strcasecmp (name
, "od") == 0)
1770 else if (strcasecmp (name
, "tr") == 0)
1775 else if (strcmp (name
, "<>") == 0)
1780 else if (strcmp (name
, ">=") == 0)
1785 else if (strcmp (name
, ">") == 0)
1790 else if (strcasecmp (name
, "uv") == 0)
1795 else if (strcasecmp (name
, "vnz") == 0)
1800 else if (strcasecmp (name
, "nsv") == 0)
1805 else if (strcasecmp (name
, "ev") == 0)
1810 /* ",*" is a valid condition. */
1811 else if (*args
== 'a')
1812 as_bad (_("Invalid Add Condition: %s"), name
);
1815 opcode
|= cmpltr
<< 13;
1816 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
1818 /* Handle non-negated add and branch condition. */
1820 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1823 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
1826 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1828 /* Handle negated add and branch condition. */
1832 /* Handle wide-mode non-negated add and branch condition. */
1836 /* Handle wide-mode negated add and branch condition. */
1840 /* Handle a negated or non-negated add and branch
1844 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1848 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
1851 as_bad (_("Invalid Compare/Subtract Condition"));
1856 /* Negated condition requires an opcode change. */
1860 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1862 /* Handle branch on bit conditions. */
1878 if (strncmp (s
, "<", 1) == 0)
1883 else if (strncmp (s
, ">=", 2) == 0)
1889 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
1891 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
1893 /* Handle a compare/subtract condition. */
1902 /* 64 bit conditions. */
1912 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1916 if (strcmp (name
, "=") == 0)
1918 else if (strcmp (name
, "<") == 0)
1920 else if (strcmp (name
, "<=") == 0)
1922 else if (strcasecmp (name
, "<<") == 0)
1924 else if (strcasecmp (name
, "<<=") == 0)
1926 else if (strcasecmp (name
, "sv") == 0)
1928 else if (strcasecmp (name
, "od") == 0)
1930 else if (strcasecmp (name
, "tr") == 0)
1935 else if (strcmp (name
, "<>") == 0)
1940 else if (strcmp (name
, ">=") == 0)
1945 else if (strcmp (name
, ">") == 0)
1950 else if (strcasecmp (name
, ">>=") == 0)
1955 else if (strcasecmp (name
, ">>") == 0)
1960 else if (strcasecmp (name
, "nsv") == 0)
1965 else if (strcasecmp (name
, "ev") == 0)
1970 /* ",*" is a valid condition. */
1971 else if (*args
!= 'S')
1972 as_bad (_("Invalid Compare/Subtract Condition: %s"),
1976 opcode
|= cmpltr
<< 13;
1977 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
1979 /* Handle a non-negated compare condition. */
1981 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
1984 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
1987 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1989 /* Handle a negated compare condition. */
1993 /* Handle a 64 bit non-negated compare condition. */
1997 /* Handle a 64 bit negated compare condition. */
2001 /* Handle a 64 bit cmpib condition. */
2005 /* Handle a negated or non-negated compare/subtract
2009 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2013 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2016 as_bad (_("Invalid Compare/Subtract Condition."));
2021 /* Negated condition requires an opcode change. */
2026 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2028 /* Handle a logical instruction condition. */
2037 /* 64 bit conditions. */
2047 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2053 if (strcmp (name
, "=") == 0)
2055 else if (strcmp (name
, "<") == 0)
2057 else if (strcmp (name
, "<=") == 0)
2059 else if (strcasecmp (name
, "od") == 0)
2061 else if (strcasecmp (name
, "tr") == 0)
2066 else if (strcmp (name
, "<>") == 0)
2071 else if (strcmp (name
, ">=") == 0)
2076 else if (strcmp (name
, ">") == 0)
2081 else if (strcasecmp (name
, "ev") == 0)
2086 /* ",*" is a valid condition. */
2087 else if (*args
!= 'L')
2088 as_bad (_("Invalid Logical Instruction Condition."));
2091 opcode
|= cmpltr
<< 13;
2092 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2094 /* Handle a shift/extract/deposit condition. */
2103 /* 64 bit conditions. */
2113 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2117 if (strcmp (name
, "=") == 0)
2119 else if (strcmp (name
, "<") == 0)
2121 else if (strcasecmp (name
, "od") == 0)
2123 else if (strcasecmp (name
, "tr") == 0)
2125 else if (strcmp (name
, "<>") == 0)
2127 else if (strcmp (name
, ">=") == 0)
2129 else if (strcasecmp (name
, "ev") == 0)
2131 /* Handle movb,n. Put things back the way they were.
2132 This includes moving s back to where it started. */
2133 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2139 /* ",*" is a valid condition. */
2140 else if (*args
!= 'X')
2141 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2144 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2146 /* Handle a unit instruction condition. */
2155 /* 64 bit conditions. */
2164 if (strncasecmp (s
, "sbz", 3) == 0)
2169 else if (strncasecmp (s
, "shz", 3) == 0)
2174 else if (strncasecmp (s
, "sdc", 3) == 0)
2179 else if (strncasecmp (s
, "sbc", 3) == 0)
2184 else if (strncasecmp (s
, "shc", 3) == 0)
2189 else if (strncasecmp (s
, "tr", 2) == 0)
2195 else if (strncasecmp (s
, "nbz", 3) == 0)
2201 else if (strncasecmp (s
, "nhz", 3) == 0)
2207 else if (strncasecmp (s
, "ndc", 3) == 0)
2213 else if (strncasecmp (s
, "nbc", 3) == 0)
2219 else if (strncasecmp (s
, "nhc", 3) == 0)
2225 /* ",*" is a valid condition. */
2226 else if (*args
!= 'U')
2227 as_bad (_("Invalid Unit Instruction Condition."));
2229 opcode
|= cmpltr
<< 13;
2230 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2238 /* Handle a system control completer. */
2240 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
2248 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
2250 /* Handle a nullification completer for branch instructions. */
2252 nullif
= pa_parse_nullif (&s
);
2253 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2255 /* Handle a nullification completer for copr and spop insns. */
2257 nullif
= pa_parse_nullif (&s
);
2258 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2261 /* Handle a 11 bit immediate at 31. */
2263 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2266 if (the_insn
.exp
.X_op
== O_constant
)
2268 num
= evaluate_absolute (&the_insn
);
2269 CHECK_FIELD (num
, 1023, -1024, 0);
2270 low_sign_unext (num
, 11, &num
);
2271 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2275 if (is_DP_relative (the_insn
.exp
))
2276 the_insn
.reloc
= R_HPPA_GOTOFF
;
2277 else if (is_PC_relative (the_insn
.exp
))
2278 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2280 the_insn
.reloc
= R_HPPA
;
2281 the_insn
.format
= 11;
2286 /* Handle a 14 bit immediate at 31. */
2288 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2291 if (the_insn
.exp
.X_op
== O_constant
)
2293 num
= evaluate_absolute (&the_insn
);
2294 CHECK_FIELD (num
, 8191, -8192, 0);
2295 low_sign_unext (num
, 14, &num
);
2296 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2300 if (is_DP_relative (the_insn
.exp
))
2301 the_insn
.reloc
= R_HPPA_GOTOFF
;
2302 else if (is_PC_relative (the_insn
.exp
))
2303 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2305 the_insn
.reloc
= R_HPPA
;
2306 the_insn
.format
= 14;
2310 /* Handle a 21 bit immediate at 31. */
2312 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2315 if (the_insn
.exp
.X_op
== O_constant
)
2317 num
= evaluate_absolute (&the_insn
);
2318 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2319 dis_assemble_21 (num
, &num
);
2320 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2324 if (is_DP_relative (the_insn
.exp
))
2325 the_insn
.reloc
= R_HPPA_GOTOFF
;
2326 else if (is_PC_relative (the_insn
.exp
))
2327 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2329 the_insn
.reloc
= R_HPPA
;
2330 the_insn
.format
= 21;
2334 /* Handle a 12 bit branch displacement. */
2336 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2340 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2342 unsigned int w1
, w
, result
;
2344 num
= evaluate_absolute (&the_insn
);
2347 as_bad (_("Branch to unaligned address"));
2350 CHECK_FIELD (num
, 8199, -8184, 0);
2351 sign_unext ((num
- 8) >> 2, 12, &result
);
2352 dis_assemble_12 (result
, &w1
, &w
);
2353 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2357 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2358 the_insn
.format
= 12;
2359 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2360 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2365 /* Handle a 17 bit branch displacement. */
2367 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2371 if (!the_insn
.exp
.X_add_symbol
2372 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2375 unsigned int w2
, w1
, w
, result
;
2377 num
= evaluate_absolute (&the_insn
);
2380 as_bad (_("Branch to unaligned address"));
2383 CHECK_FIELD (num
, 262143, -262144, 0);
2385 if (the_insn
.exp
.X_add_symbol
)
2388 sign_unext (num
>> 2, 17, &result
);
2389 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2390 INSERT_FIELD_AND_CONTINUE (opcode
,
2391 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2395 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2396 the_insn
.format
= 17;
2397 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2398 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2402 /* Handle an absolute 17 bit branch target. */
2404 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2408 if (!the_insn
.exp
.X_add_symbol
2409 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2412 unsigned int w2
, w1
, w
, result
;
2414 num
= evaluate_absolute (&the_insn
);
2417 as_bad (_("Branch to unaligned address"));
2420 CHECK_FIELD (num
, 262143, -262144, 0);
2422 if (the_insn
.exp
.X_add_symbol
)
2425 sign_unext (num
>> 2, 17, &result
);
2426 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2427 INSERT_FIELD_AND_CONTINUE (opcode
,
2428 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2432 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2433 the_insn
.format
= 17;
2434 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2435 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2439 /* Handle a 5 bit shift count at 26. */
2441 num
= pa_get_absolute_expression (&the_insn
, &s
);
2443 CHECK_FIELD (num
, 31, 0, 0);
2444 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2446 /* Handle a 5 bit bit position at 26. */
2448 num
= pa_get_absolute_expression (&the_insn
, &s
);
2450 CHECK_FIELD (num
, 31, 0, 0);
2451 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2453 /* Handle a 5 bit immediate at 10. */
2456 num
= pa_get_absolute_expression (&the_insn
, &s
);
2457 if (the_insn
.exp
.X_op
!= O_constant
)
2460 CHECK_FIELD (num
, 31, 0, 0);
2461 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2463 /* Handle a 13 bit immediate at 18. */
2465 num
= pa_get_absolute_expression (&the_insn
, &s
);
2467 CHECK_FIELD (num
, 8191, 0, 0);
2468 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2470 /* Handle a 26 bit immediate at 31. */
2472 num
= pa_get_absolute_expression (&the_insn
, &s
);
2474 CHECK_FIELD (num
, 671108864, 0, 0);
2475 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2477 /* Handle a 3 bit SFU identifier at 25. */
2480 as_bad (_("Invalid SFU identifier"));
2481 num
= pa_get_absolute_expression (&the_insn
, &s
);
2483 CHECK_FIELD (num
, 7, 0, 0);
2484 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2486 /* Handle a 20 bit SOP field for spop0. */
2488 num
= pa_get_absolute_expression (&the_insn
, &s
);
2490 CHECK_FIELD (num
, 1048575, 0, 0);
2491 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2492 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2494 /* Handle a 15bit SOP field for spop1. */
2496 num
= pa_get_absolute_expression (&the_insn
, &s
);
2498 CHECK_FIELD (num
, 32767, 0, 0);
2499 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2501 /* Handle a 10bit SOP field for spop3. */
2503 num
= pa_get_absolute_expression (&the_insn
, &s
);
2505 CHECK_FIELD (num
, 1023, 0, 0);
2506 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
2507 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2509 /* Handle a 15 bit SOP field for spop2. */
2511 num
= pa_get_absolute_expression (&the_insn
, &s
);
2513 CHECK_FIELD (num
, 32767, 0, 0);
2514 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
2515 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2517 /* Handle a 3-bit co-processor ID field. */
2520 as_bad (_("Invalid COPR identifier"));
2521 num
= pa_get_absolute_expression (&the_insn
, &s
);
2523 CHECK_FIELD (num
, 7, 0, 0);
2524 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2526 /* Handle a 22bit SOP field for copr. */
2528 num
= pa_get_absolute_expression (&the_insn
, &s
);
2530 CHECK_FIELD (num
, 4194303, 0, 0);
2531 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
2532 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2535 /* Handle a source FP operand format completer. */
2537 flag
= pa_parse_fp_format (&s
);
2538 the_insn
.fpof1
= flag
;
2539 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2541 /* Handle a destination FP operand format completer. */
2543 /* pa_parse_format needs the ',' prefix. */
2545 flag
= pa_parse_fp_format (&s
);
2546 the_insn
.fpof2
= flag
;
2547 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
2549 /* Handle L/R register halves like 't'. */
2552 struct pa_11_fp_reg_struct result
;
2554 pa_parse_number (&s
, &result
);
2555 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2556 opcode
|= result
.number_part
;
2558 /* 0x30 opcodes are FP arithmetic operation opcodes
2559 and need to be turned into 0x38 opcodes. This
2560 is not necessary for loads/stores. */
2561 if (need_pa11_opcode (&the_insn
, &result
)
2562 && ((opcode
& 0xfc000000) == 0x30000000))
2565 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
2568 /* Handle L/R register halves like 'b'. */
2571 struct pa_11_fp_reg_struct result
;
2573 pa_parse_number (&s
, &result
);
2574 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2575 opcode
|= result
.number_part
<< 21;
2576 if (need_pa11_opcode (&the_insn
, &result
))
2578 opcode
|= (result
.l_r_select
& 1) << 7;
2584 /* Float operand 1 similar to 'b' but with l/r registers. */
2587 struct pa_11_fp_reg_struct result
;
2589 pa_parse_number (&s
, &result
);
2590 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2591 opcode
|= result
.number_part
<< 21;
2592 opcode
|= (result
.l_r_select
& 1) << 7;
2596 /* Handle L/R register halves like 'b'. */
2599 struct pa_11_fp_reg_struct result
;
2602 pa_parse_number (&s
, &result
);
2603 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2604 opcode
|= (result
.number_part
& 0x1c) << 11;
2605 opcode
|= (result
.number_part
& 0x3) << 9;
2606 opcode
|= (result
.l_r_select
& 1) << 8;
2610 /* Handle L/R register halves like 'x'. */
2613 struct pa_11_fp_reg_struct result
;
2615 pa_parse_number (&s
, &result
);
2616 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2617 opcode
|= (result
.number_part
& 0x1f) << 16;
2618 if (need_pa11_opcode (&the_insn
, &result
))
2620 opcode
|= (result
.l_r_select
& 1) << 1;
2625 /* Handle L/R register halves like 'x'. */
2628 struct pa_11_fp_reg_struct result
;
2630 pa_parse_number (&s
, &result
);
2631 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2632 opcode
|= (result
.number_part
& 0x1f) << 16;
2633 if (need_pa11_opcode (&the_insn
, &result
))
2635 opcode
|= (result
.l_r_select
& 1) << 12;
2641 /* Float operand 2, like 'x' but with l/r register halves. */
2644 struct pa_11_fp_reg_struct result
;
2646 pa_parse_number (&s
, &result
);
2647 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2648 opcode
|= (result
.number_part
& 0x1f) << 16;
2649 opcode
|= (result
.l_r_select
& 1) << 12;
2653 /* Handle a 5 bit register field at 10. */
2656 struct pa_11_fp_reg_struct result
;
2658 pa_parse_number (&s
, &result
);
2659 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2660 if (the_insn
.fpof1
== SGL
)
2662 if (result
.number_part
< 16)
2664 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2668 result
.number_part
&= 0xF;
2669 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2671 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
2674 /* Handle a 5 bit register field at 15. */
2677 struct pa_11_fp_reg_struct result
;
2679 pa_parse_number (&s
, &result
);
2680 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2681 if (the_insn
.fpof1
== SGL
)
2683 if (result
.number_part
< 16)
2685 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2688 result
.number_part
&= 0xF;
2689 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2691 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
2694 /* Handle a 5 bit register field at 31. */
2697 struct pa_11_fp_reg_struct result
;
2699 pa_parse_number (&s
, &result
);
2700 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2701 if (the_insn
.fpof1
== SGL
)
2703 if (result
.number_part
< 16)
2705 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2708 result
.number_part
&= 0xF;
2709 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2711 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
2714 /* Handle a 5 bit register field at 20. */
2717 struct pa_11_fp_reg_struct result
;
2719 pa_parse_number (&s
, &result
);
2720 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2721 if (the_insn
.fpof1
== SGL
)
2723 if (result
.number_part
< 16)
2725 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2728 result
.number_part
&= 0xF;
2729 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2731 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
2734 /* Handle a 5 bit register field at 25. */
2737 struct pa_11_fp_reg_struct result
;
2739 pa_parse_number (&s
, &result
);
2740 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2741 if (the_insn
.fpof1
== SGL
)
2743 if (result
.number_part
< 16)
2745 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2748 result
.number_part
&= 0xF;
2749 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2751 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
2754 /* Handle a floating point operand format at 26.
2755 Only allows single and double precision. */
2757 flag
= pa_parse_fp_format (&s
);
2763 the_insn
.fpof1
= flag
;
2769 as_bad (_("Invalid Floating Point Operand Format."));
2780 /* Check if the args matched. */
2783 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
2784 && !strcmp (insn
->name
, insn
[1].name
))
2792 as_bad (_("Invalid operands %s"), error_message
);
2799 the_insn
.opcode
= opcode
;
2802 /* Turn a string in input_line_pointer into a floating point constant of type
2803 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
2804 emitted is stored in *sizeP . An error message or NULL is returned. */
2806 #define MAX_LITTLENUMS 6
2809 md_atof (type
, litP
, sizeP
)
2815 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
2816 LITTLENUM_TYPE
*wordP
;
2848 return _("Bad call to MD_ATOF()");
2850 t
= atof_ieee (input_line_pointer
, type
, words
);
2852 input_line_pointer
= t
;
2853 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
2854 for (wordP
= words
; prec
--;)
2856 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
2857 litP
+= sizeof (LITTLENUM_TYPE
);
2862 /* Write out big-endian. */
2865 md_number_to_chars (buf
, val
, n
)
2870 number_to_chars_bigendian (buf
, val
, n
);
2873 /* Translate internal representation of relocation info to BFD target
2877 tc_gen_reloc (section
, fixp
)
2882 struct hppa_fix_struct
*hppa_fixp
;
2883 bfd_reloc_code_real_type code
;
2884 static arelent
*no_relocs
= NULL
;
2886 bfd_reloc_code_real_type
**codes
;
2890 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
2891 if (fixp
->fx_addsy
== 0)
2893 assert (hppa_fixp
!= 0);
2894 assert (section
!= 0);
2896 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
2898 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2899 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2900 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
2902 hppa_fixp
->fx_r_format
,
2903 hppa_fixp
->fx_r_field
,
2904 fixp
->fx_subsy
!= NULL
,
2905 symbol_get_bfdsym (fixp
->fx_addsy
));
2910 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
2913 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
2914 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
2915 for (i
= 0; i
< n_relocs
; i
++)
2916 relocs
[i
] = &reloc
[i
];
2918 relocs
[n_relocs
] = NULL
;
2921 switch (fixp
->fx_r_type
)
2924 assert (n_relocs
== 1);
2928 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2929 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2930 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2931 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2932 reloc
->addend
= 0; /* default */
2934 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
2936 /* Now, do any processing that is dependent on the relocation type. */
2939 case R_PARISC_DLTREL21L
:
2940 case R_PARISC_DLTREL14R
:
2941 case R_PARISC_DLTREL14F
:
2942 case R_PARISC_PLABEL32
:
2943 case R_PARISC_PLABEL21L
:
2944 case R_PARISC_PLABEL14R
:
2945 /* For plabel relocations, the addend of the
2946 relocation should be either 0 (no static link) or 2
2947 (static link required).
2949 FIXME: We always assume no static link!
2951 We also slam a zero addend into the DLT relative relocs;
2952 it doesn't make a lot of sense to use any addend since
2953 it gets you a different (eg unknown) DLT entry. */
2957 case R_PARISC_PCREL21L
:
2958 case R_PARISC_PCREL17R
:
2959 case R_PARISC_PCREL17F
:
2960 case R_PARISC_PCREL17C
:
2961 case R_PARISC_PCREL14R
:
2962 case R_PARISC_PCREL14F
:
2963 /* The constant is stored in the instruction. */
2964 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
2967 reloc
->addend
= fixp
->fx_offset
;
2974 /* Walk over reach relocation returned by the BFD backend. */
2975 for (i
= 0; i
< n_relocs
; i
++)
2979 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2980 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2981 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2982 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2987 /* The only time we ever use a R_COMP2 fixup is for the difference
2988 of two symbols. With that in mind we fill in all four
2989 relocs now and break out of the loop. */
2991 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
2992 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
2993 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2994 relocs
[0]->addend
= 0;
2995 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2996 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2997 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
2998 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2999 relocs
[1]->addend
= 0;
3000 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3001 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3002 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3003 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3004 relocs
[2]->addend
= 0;
3005 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3006 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3007 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3008 relocs
[3]->addend
= 0;
3009 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3010 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3011 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3012 relocs
[4]->addend
= 0;
3016 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3022 /* For plabel relocations, the addend of the
3023 relocation should be either 0 (no static link) or 2
3024 (static link required).
3026 FIXME: We always assume no static link!
3028 We also slam a zero addend into the DLT relative relocs;
3029 it doesn't make a lot of sense to use any addend since
3030 it gets you a different (eg unknown) DLT entry. */
3031 relocs
[i
]->addend
= 0;
3046 /* There is no symbol or addend associated with these fixups. */
3047 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3048 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3049 relocs
[i
]->addend
= 0;
3055 /* There is no symbol associated with these fixups. */
3056 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3057 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3058 relocs
[i
]->addend
= fixp
->fx_offset
;
3062 relocs
[i
]->addend
= fixp
->fx_offset
;
3072 /* Process any machine dependent frag types. */
3075 md_convert_frag (abfd
, sec
, fragP
)
3077 register asection
*sec
;
3078 register fragS
*fragP
;
3080 unsigned int address
;
3082 if (fragP
->fr_type
== rs_machine_dependent
)
3084 switch ((int) fragP
->fr_subtype
)
3087 fragP
->fr_type
= rs_fill
;
3088 know (fragP
->fr_var
== 1);
3089 know (fragP
->fr_next
);
3090 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3091 if (address
% fragP
->fr_offset
)
3094 fragP
->fr_next
->fr_address
3099 fragP
->fr_offset
= 0;
3105 /* Round up a section size to the appropriate boundary. */
3108 md_section_align (segment
, size
)
3112 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3113 int align2
= (1 << align
) - 1;
3115 return (size
+ align2
) & ~align2
;
3118 /* Return the approximate size of a frag before relaxation has occurred. */
3120 md_estimate_size_before_relax (fragP
, segment
)
3121 register fragS
*fragP
;
3128 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3134 CONST
char *md_shortopts
= "";
3135 struct option md_longopts
[] = {
3136 {NULL
, no_argument
, NULL
, 0}
3138 size_t md_longopts_size
= sizeof(md_longopts
);
3141 md_parse_option (c
, arg
)
3149 md_show_usage (stream
)
3154 /* We have no need to default values of symbols. */
3157 md_undefined_symbol (name
)
3163 /* Apply a fixup to an instruction. */
3166 md_apply_fix (fixP
, valp
)
3170 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3171 struct hppa_fix_struct
*hppa_fixP
;
3172 long new_val
, result
= 0;
3173 unsigned int w1
, w2
, w
, resulti
;
3175 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3176 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3177 never be "applied" (they are just markers). Likewise for
3178 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3180 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3181 || fixP
->fx_r_type
== R_HPPA_EXIT
3182 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3183 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3184 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3187 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3188 fixups are considered not adjustable, which in turn causes
3189 adjust_reloc_syms to not set fx_offset. Ugh. */
3190 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3192 fixP
->fx_offset
= *valp
;
3197 /* There should have been an HPPA specific fixup associated
3198 with the GAS fixup. */
3201 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3202 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3204 /* If there is a symbol associated with this fixup, then it's something
3205 which will need a SOM relocation (except for some PC-relative relocs).
3206 In such cases we should treat the "val" or "addend" as zero since it
3207 will be added in as needed from fx_offset in tc_gen_reloc. */
3208 if ((fixP
->fx_addsy
!= NULL
3209 || fixP
->fx_r_type
== R_HPPA_NONE
)
3214 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3216 /* These field selectors imply that we do not want an addend. */
3217 else if (hppa_fixP
->fx_r_field
== e_psel
3218 || hppa_fixP
->fx_r_field
== e_rpsel
3219 || hppa_fixP
->fx_r_field
== e_lpsel
3220 || hppa_fixP
->fx_r_field
== e_tsel
3221 || hppa_fixP
->fx_r_field
== e_rtsel
3222 || hppa_fixP
->fx_r_field
== e_ltsel
)
3223 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3224 /* This is truely disgusting. The machine independent code blindly
3225 adds in the value of the symbol being relocated against. Damn! */
3227 && fixP
->fx_addsy
!= NULL
3228 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3229 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3230 0, hppa_fixP
->fx_r_field
);
3233 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3235 /* Handle pc-relative exceptions from above. */
3236 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3237 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3238 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3242 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3243 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3244 hppa_fixP
->fx_arg_reloc
)
3246 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3247 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3249 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3251 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3252 #undef arg_reloc_stub_needed
3256 /* Handle all opcodes with the 'j' operand type. */
3258 CHECK_FIELD (new_val
, 8191, -8192, 0);
3260 /* Mask off 14 bits to be changed. */
3261 bfd_put_32 (stdoutput
,
3262 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3264 low_sign_unext (new_val
, 14, &resulti
);
3268 /* Handle all opcodes with the 'k' operand type. */
3270 CHECK_FIELD (new_val
, 2097152, 0, 0);
3272 /* Mask off 21 bits to be changed. */
3273 bfd_put_32 (stdoutput
,
3274 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3276 dis_assemble_21 (new_val
, &resulti
);
3280 /* Handle all the opcodes with the 'i' operand type. */
3282 CHECK_FIELD (new_val
, 1023, -1023, 0);
3284 /* Mask off 11 bits to be changed. */
3285 bfd_put_32 (stdoutput
,
3286 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3288 low_sign_unext (new_val
, 11, &resulti
);
3292 /* Handle all the opcodes with the 'w' operand type. */
3294 CHECK_FIELD (new_val
, 8199, -8184, 0);
3296 /* Mask off 11 bits to be changed. */
3297 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3298 bfd_put_32 (stdoutput
,
3299 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3302 dis_assemble_12 (resulti
, &w1
, &w
);
3303 result
= ((w1
<< 2) | w
);
3306 /* Handle some of the opcodes with the 'W' operand type. */
3309 int distance
= *valp
;
3311 CHECK_FIELD (new_val
, 262143, -262144, 0);
3313 /* If this is an absolute branch (ie no link) with an out of
3314 range target, then we want to complain. */
3315 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3316 && (distance
> 262143 || distance
< -262144)
3317 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3318 CHECK_FIELD (distance
, 262143, -262144, 0);
3320 /* Mask off 17 bits to be changed. */
3321 bfd_put_32 (stdoutput
,
3322 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3324 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3325 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3326 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3332 bfd_put_32 (stdoutput
, new_val
, buf
);
3336 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3340 /* Insert the relocation. */
3341 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3346 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3347 (unsigned int) fixP
, fixP
->fx_r_type
);
3352 /* Exactly what point is a PC-relative offset relative TO?
3353 On the PA, they're relative to the address of the offset. */
3356 md_pcrel_from (fixP
)
3359 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3362 /* Return nonzero if the input line pointer is at the end of
3366 is_end_of_statement ()
3368 return ((*input_line_pointer
== '\n')
3369 || (*input_line_pointer
== ';')
3370 || (*input_line_pointer
== '!'));
3373 /* Read a number from S. The number might come in one of many forms,
3374 the most common will be a hex or decimal constant, but it could be
3375 a pre-defined register (Yuk!), or an absolute symbol.
3377 Return a number or -1 for failure.
3379 When parsing PA-89 FP register numbers RESULT will be
3380 the address of a structure to return information about
3381 L/R half of FP registers, store results there as appropriate.
3383 pa_parse_number can not handle negative constants and will fail
3384 horribly if it is passed such a constant. */
3387 pa_parse_number (s
, result
)
3389 struct pa_11_fp_reg_struct
*result
;
3398 /* Skip whitespace before the number. */
3399 while (*p
== ' ' || *p
== '\t')
3402 /* Store info in RESULT if requested by caller. */
3405 result
->number_part
= -1;
3406 result
->l_r_select
= -1;
3412 /* Looks like a number. */
3415 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3417 /* The number is specified in hex. */
3419 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3420 || ((*p
>= 'A') && (*p
<= 'F')))
3423 num
= num
* 16 + *p
- '0';
3424 else if (*p
>= 'a' && *p
<= 'f')
3425 num
= num
* 16 + *p
- 'a' + 10;
3427 num
= num
* 16 + *p
- 'A' + 10;
3433 /* The number is specified in decimal. */
3434 while (isdigit (*p
))
3436 num
= num
* 10 + *p
- '0';
3441 /* Store info in RESULT if requested by the caller. */
3444 result
->number_part
= num
;
3446 if (IS_R_SELECT (p
))
3448 result
->l_r_select
= 1;
3451 else if (IS_L_SELECT (p
))
3453 result
->l_r_select
= 0;
3457 result
->l_r_select
= 0;
3462 /* The number might be a predefined register. */
3467 /* Tege hack: Special case for general registers as the general
3468 code makes a binary search with case translation, and is VERY
3473 if (*p
== 'e' && *(p
+ 1) == 't'
3474 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3477 num
= *p
- '0' + 28;
3485 else if (!isdigit (*p
))
3488 as_bad (_("Undefined register: '%s'."), name
);
3494 num
= num
* 10 + *p
++ - '0';
3495 while (isdigit (*p
));
3500 /* Do a normal register search. */
3501 while (is_part_of_name (c
))
3507 status
= reg_name_search (name
);
3513 as_bad (_("Undefined register: '%s'."), name
);
3519 /* Store info in RESULT if requested by caller. */
3522 result
->number_part
= num
;
3523 if (IS_R_SELECT (p
- 1))
3524 result
->l_r_select
= 1;
3525 else if (IS_L_SELECT (p
- 1))
3526 result
->l_r_select
= 0;
3528 result
->l_r_select
= 0;
3533 /* And finally, it could be a symbol in the absolute section which
3534 is effectively a constant. */
3538 while (is_part_of_name (c
))
3544 if ((sym
= symbol_find (name
)) != NULL
)
3546 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3547 num
= S_GET_VALUE (sym
);
3551 as_bad (_("Non-absolute symbol: '%s'."), name
);
3557 /* There is where we'd come for an undefined symbol
3558 or for an empty string. For an empty string we
3559 will return zero. That's a concession made for
3560 compatability with the braindamaged HP assemblers. */
3566 as_bad (_("Undefined absolute constant: '%s'."), name
);
3572 /* Store info in RESULT if requested by caller. */
3575 result
->number_part
= num
;
3576 if (IS_R_SELECT (p
- 1))
3577 result
->l_r_select
= 1;
3578 else if (IS_L_SELECT (p
- 1))
3579 result
->l_r_select
= 0;
3581 result
->l_r_select
= 0;
3589 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3591 /* Given NAME, find the register number associated with that name, return
3592 the integer value associated with the given name or -1 on failure. */
3595 reg_name_search (name
)
3598 int middle
, low
, high
;
3602 high
= REG_NAME_CNT
- 1;
3606 middle
= (low
+ high
) / 2;
3607 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
3613 return pre_defined_registers
[middle
].value
;
3615 while (low
<= high
);
3621 /* Return nonzero if the given INSN and L/R information will require
3622 a new PA-1.1 opcode. */
3625 need_pa11_opcode (insn
, result
)
3627 struct pa_11_fp_reg_struct
*result
;
3629 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
3631 /* If this instruction is specific to a particular architecture,
3632 then set a new architecture. */
3633 if (bfd_get_mach (stdoutput
) < pa11
)
3635 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
3636 as_warn (_("could not update architecture and machine"));
3644 /* Parse a condition for a fcmp instruction. Return the numerical
3645 code associated with the condition. */
3648 pa_parse_fp_cmp_cond (s
)
3655 for (i
= 0; i
< 32; i
++)
3657 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
3658 strlen (fp_cond_map
[i
].string
)) == 0)
3660 cond
= fp_cond_map
[i
].cond
;
3661 *s
+= strlen (fp_cond_map
[i
].string
);
3662 /* If not a complete match, back up the input string and
3664 if (**s
!= ' ' && **s
!= '\t')
3666 *s
-= strlen (fp_cond_map
[i
].string
);
3669 while (**s
== ' ' || **s
== '\t')
3675 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
3677 /* Advance over the bogus completer. */
3678 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3685 /* Parse an FP operand format completer returning the completer
3688 static fp_operand_format
3689 pa_parse_fp_format (s
)
3698 if (strncasecmp (*s
, "sgl", 3) == 0)
3703 else if (strncasecmp (*s
, "dbl", 3) == 0)
3708 else if (strncasecmp (*s
, "quad", 4) == 0)
3715 format
= ILLEGAL_FMT
;
3716 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
3723 /* Convert from a selector string into a selector type. */
3726 pa_chk_field_selector (str
)
3729 int middle
, low
, high
;
3733 /* Read past any whitespace. */
3734 /* FIXME: should we read past newlines and formfeeds??? */
3735 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
3738 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
3739 name
[0] = tolower ((*str
)[0]),
3741 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
3742 name
[0] = tolower ((*str
)[0]),
3743 name
[1] = tolower ((*str
)[1]),
3745 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
3746 name
[0] = tolower ((*str
)[0]),
3747 name
[1] = tolower ((*str
)[1]),
3748 name
[2] = tolower ((*str
)[2]),
3754 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
3758 middle
= (low
+ high
) / 2;
3759 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
3766 *str
+= strlen (name
) + 1;
3768 if (selector_table
[middle
].field_selector
== e_nsel
)
3771 return selector_table
[middle
].field_selector
;
3774 while (low
<= high
);
3779 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
3782 get_expression (str
)
3788 save_in
= input_line_pointer
;
3789 input_line_pointer
= str
;
3790 seg
= expression (&the_insn
.exp
);
3791 if (!(seg
== absolute_section
3792 || seg
== undefined_section
3793 || SEG_NORMAL (seg
)))
3795 as_warn (_("Bad segment in expression."));
3796 expr_end
= input_line_pointer
;
3797 input_line_pointer
= save_in
;
3800 expr_end
= input_line_pointer
;
3801 input_line_pointer
= save_in
;
3805 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
3807 pa_get_absolute_expression (insn
, strp
)
3813 insn
->field_selector
= pa_chk_field_selector (strp
);
3814 save_in
= input_line_pointer
;
3815 input_line_pointer
= *strp
;
3816 expression (&insn
->exp
);
3817 /* This is not perfect, but is a huge improvement over doing nothing.
3819 The PA assembly syntax is ambigious in a variety of ways. Consider
3820 this string "4 %r5" Is that the number 4 followed by the register
3821 r5, or is that 4 MOD 5?
3823 If we get a modulo expresion When looking for an absolute, we try
3824 again cutting off the input string at the first whitespace character. */
3825 if (insn
->exp
.X_op
== O_modulus
)
3830 input_line_pointer
= *strp
;
3832 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
3838 retval
= pa_get_absolute_expression (insn
, strp
);
3840 input_line_pointer
= save_in
;
3842 return evaluate_absolute (insn
);
3844 if (insn
->exp
.X_op
!= O_constant
)
3846 as_bad (_("Bad segment (should be absolute)."));
3847 expr_end
= input_line_pointer
;
3848 input_line_pointer
= save_in
;
3851 expr_end
= input_line_pointer
;
3852 input_line_pointer
= save_in
;
3853 return evaluate_absolute (insn
);
3856 /* Evaluate an absolute expression EXP which may be modified by
3857 the selector FIELD_SELECTOR. Return the value of the expression. */
3859 evaluate_absolute (insn
)
3864 int field_selector
= insn
->field_selector
;
3867 value
= exp
.X_add_number
;
3869 switch (field_selector
)
3875 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3877 if (value
& 0x00000400)
3879 value
= (value
& 0xfffff800) >> 11;
3882 /* Sign extend from bit 21. */
3884 if (value
& 0x00000400)
3885 value
|= 0xfffff800;
3890 /* Arithmetic shift right 11 bits. */
3892 value
= (value
& 0xfffff800) >> 11;
3895 /* Set bits 0-20 to zero. */
3897 value
= value
& 0x7ff;
3900 /* Add 0x800 and arithmetic shift right 11 bits. */
3903 value
= (value
& 0xfffff800) >> 11;
3906 /* Set bitgs 0-21 to one. */
3908 value
|= 0xfffff800;
3911 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
3913 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
3917 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
3922 BAD_CASE (field_selector
);
3928 /* Given an argument location specification return the associated
3929 argument location number. */
3932 pa_build_arg_reloc (type_name
)
3936 if (strncasecmp (type_name
, "no", 2) == 0)
3938 if (strncasecmp (type_name
, "gr", 2) == 0)
3940 else if (strncasecmp (type_name
, "fr", 2) == 0)
3942 else if (strncasecmp (type_name
, "fu", 2) == 0)
3945 as_bad (_("Invalid argument location: %s\n"), type_name
);
3950 /* Encode and return an argument relocation specification for
3951 the given register in the location specified by arg_reloc. */
3954 pa_align_arg_reloc (reg
, arg_reloc
)
3956 unsigned int arg_reloc
;
3958 unsigned int new_reloc
;
3960 new_reloc
= arg_reloc
;
3976 as_bad (_("Invalid argument description: %d"), reg
);
3982 /* Parse a PA nullification completer (,n). Return nonzero if the
3983 completer was found; return zero if no completer was found. */
3995 if (strncasecmp (*s
, "n", 1) == 0)
3999 as_bad (_("Invalid Nullification: (%c)"), **s
);
4008 /* Parse a non-negated compare/subtract completer returning the
4009 number (for encoding in instrutions) of the given completer.
4011 ISBRANCH specifies whether or not this is parsing a condition
4012 completer for a branch (vs a nullification completer for a
4013 computational instruction. */
4016 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4021 char *name
= *s
+ 1;
4030 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4036 if (strcmp (name
, "=") == 0)
4040 else if (strcmp (name
, "<") == 0)
4044 else if (strcmp (name
, "<=") == 0)
4048 else if (strcmp (name
, "<<") == 0)
4052 else if (strcmp (name
, "<<=") == 0)
4056 else if (strcasecmp (name
, "sv") == 0)
4060 else if (strcasecmp (name
, "od") == 0)
4064 /* If we have something like addb,n then there is no condition
4066 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4078 /* Reset pointers if this was really a ,n for a branch instruction. */
4086 /* Parse a negated compare/subtract completer returning the
4087 number (for encoding in instrutions) of the given completer.
4089 ISBRANCH specifies whether or not this is parsing a condition
4090 completer for a branch (vs a nullification completer for a
4091 computational instruction. */
4094 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4099 char *name
= *s
+ 1;
4108 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4114 if (strcasecmp (name
, "tr") == 0)
4118 else if (strcmp (name
, "<>") == 0)
4122 else if (strcmp (name
, ">=") == 0)
4126 else if (strcmp (name
, ">") == 0)
4130 else if (strcmp (name
, ">>=") == 0)
4134 else if (strcmp (name
, ">>") == 0)
4138 else if (strcasecmp (name
, "nsv") == 0)
4142 else if (strcasecmp (name
, "ev") == 0)
4146 /* If we have something like addb,n then there is no condition
4148 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4160 /* Reset pointers if this was really a ,n for a branch instruction. */
4169 /* Parse a non-negated addition completer returning the number
4170 (for encoding in instrutions) of the given completer.
4172 ISBRANCH specifies whether or not this is parsing a condition
4173 completer for a branch (vs a nullification completer for a
4174 computational instruction. */
4177 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4182 char *name
= *s
+ 1;
4190 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4194 if (strcmp (name
, "=") == 0)
4198 else if (strcmp (name
, "<") == 0)
4202 else if (strcmp (name
, "<=") == 0)
4206 else if (strcasecmp (name
, "nuv") == 0)
4210 else if (strcasecmp (name
, "znv") == 0)
4214 else if (strcasecmp (name
, "sv") == 0)
4218 else if (strcasecmp (name
, "od") == 0)
4222 /* If we have something like addb,n then there is no condition
4224 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4235 /* Reset pointers if this was really a ,n for a branch instruction. */
4236 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4242 /* Parse a negated addition completer returning the number
4243 (for encoding in instrutions) of the given completer.
4245 ISBRANCH specifies whether or not this is parsing a condition
4246 completer for a branch (vs a nullification completer for a
4247 computational instruction). */
4250 pa_parse_neg_add_cmpltr (s
, isbranch
)
4255 char *name
= *s
+ 1;
4263 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4267 if (strcasecmp (name
, "tr") == 0)
4271 else if (strcmp (name
, "<>") == 0)
4275 else if (strcmp (name
, ">=") == 0)
4279 else if (strcmp (name
, ">") == 0)
4283 else if (strcasecmp (name
, "uv") == 0)
4287 else if (strcasecmp (name
, "vnz") == 0)
4291 else if (strcasecmp (name
, "nsv") == 0)
4295 else if (strcasecmp (name
, "ev") == 0)
4299 /* If we have something like addb,n then there is no condition
4301 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4312 /* Reset pointers if this was really a ,n for a branch instruction. */
4313 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4320 /* Handle an alignment directive. Special so that we can update the
4321 alignment of the subspace if necessary. */
4325 /* We must have a valid space and subspace. */
4326 pa_check_current_space_and_subspace ();
4328 /* Let the generic gas code do most of the work. */
4329 s_align_bytes (bytes
);
4331 /* If bytes is a power of 2, then update the current subspace's
4332 alignment if necessary. */
4333 if (log2 (bytes
) != -1)
4334 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4338 /* Handle a .BLOCK type pseudo-op. */
4346 unsigned int temp_size
;
4350 /* We must have a valid space and subspace. */
4351 pa_check_current_space_and_subspace ();
4354 temp_size
= get_absolute_expression ();
4356 /* Always fill with zeros, that's what the HP assembler does. */
4359 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4360 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4361 memset (p
, 0, temp_size
);
4363 /* Convert 2 bytes at a time. */
4365 for (i
= 0; i
< temp_size
; i
+= 2)
4367 md_number_to_chars (p
+ i
,
4369 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4372 pa_undefine_label ();
4373 demand_empty_rest_of_line ();
4376 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4384 /* The BRTAB relocations are only availble in SOM (to denote
4385 the beginning and end of branch tables). */
4386 char *where
= frag_more (0);
4388 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4389 NULL
, (offsetT
) 0, NULL
,
4390 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4391 e_fsel
, 0, 0, NULL
);
4394 demand_empty_rest_of_line ();
4397 /* Handle a .begin_try and .end_try pseudo-op. */
4405 char *where
= frag_more (0);
4410 /* The TRY relocations are only availble in SOM (to denote
4411 the beginning and end of exception handling regions). */
4413 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4414 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4415 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4416 e_fsel
, 0, 0, NULL
);
4419 demand_empty_rest_of_line ();
4422 /* Handle a .CALL pseudo-op. This involves storing away information
4423 about where arguments are to be found so the linker can detect
4424 (and correct) argument location mismatches between caller and callee. */
4431 /* We must have a valid space and subspace. */
4432 pa_check_current_space_and_subspace ();
4435 pa_call_args (&last_call_desc
);
4436 demand_empty_rest_of_line ();
4439 /* Do the dirty work of building a call descriptor which describes
4440 where the caller placed arguments to a function call. */
4443 pa_call_args (call_desc
)
4444 struct call_desc
*call_desc
;
4447 unsigned int temp
, arg_reloc
;
4449 while (!is_end_of_statement ())
4451 name
= input_line_pointer
;
4452 c
= get_symbol_end ();
4453 /* Process a source argument. */
4454 if ((strncasecmp (name
, "argw", 4) == 0))
4456 temp
= atoi (name
+ 4);
4457 p
= input_line_pointer
;
4459 input_line_pointer
++;
4460 name
= input_line_pointer
;
4461 c
= get_symbol_end ();
4462 arg_reloc
= pa_build_arg_reloc (name
);
4463 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4465 /* Process a return value. */
4466 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4468 p
= input_line_pointer
;
4470 input_line_pointer
++;
4471 name
= input_line_pointer
;
4472 c
= get_symbol_end ();
4473 arg_reloc
= pa_build_arg_reloc (name
);
4474 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4478 as_bad (_("Invalid .CALL argument: %s"), name
);
4480 p
= input_line_pointer
;
4482 if (!is_end_of_statement ())
4483 input_line_pointer
++;
4487 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4490 is_same_frag (frag1
, frag2
)
4497 else if (frag2
== NULL
)
4499 else if (frag1
== frag2
)
4501 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4502 return (is_same_frag (frag1
, frag2
->fr_next
));
4508 /* Build an entry in the UNWIND subspace from the given function
4509 attributes in CALL_INFO. This is not needed for SOM as using
4510 R_ENTRY and R_EXIT relocations allow the linker to handle building
4511 of the unwind spaces. */
4514 pa_build_unwind_subspace (call_info
)
4515 struct call_info
*call_info
;
4518 asection
*seg
, *save_seg
;
4520 subsegT subseg
, save_subseg
;
4524 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
4525 reloc
= R_PARISC_DIR32
;
4527 reloc
= R_PARISC_SEGREL32
;
4529 /* Get into the right seg/subseg. This may involve creating
4530 the seg the first time through. Make sure to have the
4531 old seg/subseg so that we can reset things when we are done. */
4532 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4533 if (seg
== ASEC_NULL
)
4535 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4536 bfd_set_section_flags (stdoutput
, seg
,
4537 SEC_READONLY
| SEC_HAS_CONTENTS
4538 | SEC_LOAD
| SEC_RELOC
);
4542 save_subseg
= now_subseg
;
4543 subseg_set (seg
, 0);
4546 /* Get some space to hold relocation information for the unwind
4549 md_number_to_chars (p
, 0, 4);
4551 /* Relocation info. for start offset of the function. */
4552 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4553 call_info
->start_symbol
, (offsetT
) 0,
4554 (expressionS
*) NULL
, 0, reloc
,
4555 e_fsel
, 32, 0, NULL
);
4558 md_number_to_chars (p
, 0, 4);
4560 /* Relocation info. for end offset of the function.
4562 Because we allow reductions of 32bit relocations for ELF, this will be
4563 reduced to section_sym + offset which avoids putting the temporary
4564 symbol into the symbol table. It (should) end up giving the same
4565 value as call_info->start_symbol + function size once the linker is
4566 finished with its work. */
4568 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4569 call_info
->end_symbol
, (offsetT
) 0,
4570 (expressionS
*) NULL
, 0, reloc
,
4571 e_fsel
, 32, 0, NULL
);
4574 unwind
= (char *) &call_info
->ci_unwind
;
4575 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4579 FRAG_APPEND_1_CHAR (c
);
4583 /* Return back to the original segment/subsegment. */
4584 subseg_set (save_seg
, save_subseg
);
4588 /* Process a .CALLINFO pseudo-op. This information is used later
4589 to build unwind descriptors and maybe one day to support
4590 .ENTER and .LEAVE. */
4593 pa_callinfo (unused
)
4600 /* We must have a valid space and subspace. */
4601 pa_check_current_space_and_subspace ();
4604 /* .CALLINFO must appear within a procedure definition. */
4605 if (!within_procedure
)
4606 as_bad (_(".callinfo is not within a procedure definition"));
4608 /* Mark the fact that we found the .CALLINFO for the
4609 current procedure. */
4610 callinfo_found
= TRUE
;
4612 /* Iterate over the .CALLINFO arguments. */
4613 while (!is_end_of_statement ())
4615 name
= input_line_pointer
;
4616 c
= get_symbol_end ();
4617 /* Frame size specification. */
4618 if ((strncasecmp (name
, "frame", 5) == 0))
4620 p
= input_line_pointer
;
4622 input_line_pointer
++;
4623 temp
= get_absolute_expression ();
4624 if ((temp
& 0x3) != 0)
4626 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
4630 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
4631 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
4634 /* Entry register (GR, GR and SR) specifications. */
4635 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
4637 p
= input_line_pointer
;
4639 input_line_pointer
++;
4640 temp
= get_absolute_expression ();
4641 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4642 even though %r19 is caller saved. I think this is a bug in
4643 the HP assembler, and we are not going to emulate it. */
4644 if (temp
< 3 || temp
> 18)
4645 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
4646 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
4648 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
4650 p
= input_line_pointer
;
4652 input_line_pointer
++;
4653 temp
= get_absolute_expression ();
4654 /* Similarly the HP assembler takes 31 as the high bound even
4655 though %fr21 is the last callee saved floating point register. */
4656 if (temp
< 12 || temp
> 21)
4657 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
4658 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
4660 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
4662 p
= input_line_pointer
;
4664 input_line_pointer
++;
4665 temp
= get_absolute_expression ();
4667 as_bad (_("Value for ENTRY_SR must be 3\n"));
4669 /* Note whether or not this function performs any calls. */
4670 else if ((strncasecmp (name
, "calls", 5) == 0) ||
4671 (strncasecmp (name
, "caller", 6) == 0))
4673 p
= input_line_pointer
;
4676 else if ((strncasecmp (name
, "no_calls", 8) == 0))
4678 p
= input_line_pointer
;
4681 /* Should RP be saved into the stack. */
4682 else if ((strncasecmp (name
, "save_rp", 7) == 0))
4684 p
= input_line_pointer
;
4686 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
4688 /* Likewise for SP. */
4689 else if ((strncasecmp (name
, "save_sp", 7) == 0))
4691 p
= input_line_pointer
;
4693 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
4695 /* Is this an unwindable procedure. If so mark it so
4696 in the unwind descriptor. */
4697 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
4699 p
= input_line_pointer
;
4701 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
4703 /* Is this an interrupt routine. If so mark it in the
4704 unwind descriptor. */
4705 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
4707 p
= input_line_pointer
;
4709 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
4711 /* Is this a millicode routine. "millicode" isn't in my
4712 assembler manual, but my copy is old. The HP assembler
4713 accepts it, and there's a place in the unwind descriptor
4714 to drop the information, so we'll accept it too. */
4715 else if ((strncasecmp (name
, "millicode", 9) == 0))
4717 p
= input_line_pointer
;
4719 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
4723 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
4724 *input_line_pointer
= c
;
4726 if (!is_end_of_statement ())
4727 input_line_pointer
++;
4730 demand_empty_rest_of_line ();
4733 /* Switch into the code subspace. */
4740 current_space
= is_defined_space ("$TEXT$");
4742 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
4745 pa_undefine_label ();
4748 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4749 the .comm pseudo-op has the following symtax:
4751 <label> .comm <length>
4753 where <label> is optional and is a symbol whose address will be the start of
4754 a block of memory <length> bytes long. <length> must be an absolute
4755 expression. <length> bytes will be allocated in the current space
4758 Also note the label may not even be on the same line as the .comm.
4760 This difference in syntax means the colon function will be called
4761 on the symbol before we arrive in pa_comm. colon will set a number
4762 of attributes of the symbol that need to be fixed here. In particular
4763 the value, section pointer, fragment pointer, flags, etc. What
4766 This also makes error detection all but impossible. */
4774 label_symbol_struct
*label_symbol
= pa_get_label ();
4777 symbol
= label_symbol
->lss_label
;
4782 size
= get_absolute_expression ();
4786 S_SET_VALUE (symbol
, size
);
4787 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
4788 S_SET_EXTERNAL (symbol
);
4790 /* colon() has already set the frag to the current location in the
4791 current subspace; we need to reset the fragment to the zero address
4792 fragment. We also need to reset the segment pointer. */
4793 symbol_set_frag (symbol
, &zero_address_frag
);
4795 demand_empty_rest_of_line ();
4798 /* Process a .END pseudo-op. */
4804 demand_empty_rest_of_line ();
4807 /* Process a .ENTER pseudo-op. This is not supported. */
4813 /* We must have a valid space and subspace. */
4814 pa_check_current_space_and_subspace ();
4817 as_bad (_("The .ENTER pseudo-op is not supported"));
4818 demand_empty_rest_of_line ();
4821 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4828 /* We must have a valid space and subspace. */
4829 pa_check_current_space_and_subspace ();
4832 if (!within_procedure
)
4833 as_bad (_("Misplaced .entry. Ignored."));
4836 if (!callinfo_found
)
4837 as_bad (_("Missing .callinfo."));
4839 demand_empty_rest_of_line ();
4840 within_entry_exit
= TRUE
;
4843 /* SOM defers building of unwind descriptors until the link phase.
4844 The assembler is responsible for creating an R_ENTRY relocation
4845 to mark the beginning of a region and hold the unwind bits, and
4846 for creating an R_EXIT relocation to mark the end of the region.
4848 FIXME. ELF should be using the same conventions! The problem
4849 is an unwind requires too much relocation space. Hmmm. Maybe
4850 if we split the unwind bits up between the relocations which
4851 denote the entry and exit points. */
4852 if (last_call_info
->start_symbol
!= NULL
)
4854 char *where
= frag_more (0);
4856 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4857 NULL
, (offsetT
) 0, NULL
,
4858 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
4859 (int *) &last_call_info
->ci_unwind
.descriptor
);
4864 /* Handle a .EQU pseudo-op. */
4870 label_symbol_struct
*label_symbol
= pa_get_label ();
4875 symbol
= label_symbol
->lss_label
;
4877 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
4879 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
4880 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
4885 as_bad (_(".REG must use a label"));
4887 as_bad (_(".EQU must use a label"));
4890 pa_undefine_label ();
4891 demand_empty_rest_of_line ();
4894 /* Helper function. Does processing for the end of a function. This
4895 usually involves creating some relocations or building special
4896 symbols to mark the end of the function. */
4903 where
= frag_more (0);
4906 /* Mark the end of the function, stuff away the location of the frag
4907 for the end of the function, and finally call pa_build_unwind_subspace
4908 to add an entry in the unwind table. */
4909 hppa_elf_mark_end_of_function ();
4910 pa_build_unwind_subspace (last_call_info
);
4912 /* SOM defers building of unwind descriptors until the link phase.
4913 The assembler is responsible for creating an R_ENTRY relocation
4914 to mark the beginning of a region and hold the unwind bits, and
4915 for creating an R_EXIT relocation to mark the end of the region.
4917 FIXME. ELF should be using the same conventions! The problem
4918 is an unwind requires too much relocation space. Hmmm. Maybe
4919 if we split the unwind bits up between the relocations which
4920 denote the entry and exit points. */
4921 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4923 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
4924 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
4928 /* Process a .EXIT pseudo-op. */
4935 /* We must have a valid space and subspace. */
4936 pa_check_current_space_and_subspace ();
4939 if (!within_procedure
)
4940 as_bad (_(".EXIT must appear within a procedure"));
4943 if (!callinfo_found
)
4944 as_bad (_("Missing .callinfo"));
4947 if (!within_entry_exit
)
4948 as_bad (_("No .ENTRY for this .EXIT"));
4951 within_entry_exit
= FALSE
;
4956 demand_empty_rest_of_line ();
4959 /* Process a .EXPORT directive. This makes functions external
4960 and provides information such as argument relocation entries
4970 name
= input_line_pointer
;
4971 c
= get_symbol_end ();
4972 /* Make sure the given symbol exists. */
4973 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
4975 as_bad (_("Cannot define export symbol: %s\n"), name
);
4976 p
= input_line_pointer
;
4978 input_line_pointer
++;
4982 /* OK. Set the external bits and process argument relocations. */
4983 S_SET_EXTERNAL (symbol
);
4984 p
= input_line_pointer
;
4986 if (!is_end_of_statement ())
4988 input_line_pointer
++;
4989 pa_type_args (symbol
, 1);
4993 demand_empty_rest_of_line ();
4996 /* Helper function to process arguments to a .EXPORT pseudo-op. */
4999 pa_type_args (symbolP
, is_export
)
5004 unsigned int temp
, arg_reloc
;
5005 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5006 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5008 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5011 input_line_pointer
+= 8;
5012 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5013 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5014 type
= SYMBOL_TYPE_ABSOLUTE
;
5016 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5018 input_line_pointer
+= 4;
5019 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5020 instead one should be IMPORTing/EXPORTing ENTRY types.
5022 Complain if one tries to EXPORT a CODE type since that's never
5023 done. Both GCC and HP C still try to IMPORT CODE types, so
5024 silently fix them to be ENTRY types. */
5025 if (S_IS_FUNCTION (symbolP
))
5028 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5029 S_GET_NAME (symbolP
));
5031 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5032 type
= SYMBOL_TYPE_ENTRY
;
5036 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5037 type
= SYMBOL_TYPE_CODE
;
5040 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5042 input_line_pointer
+= 4;
5043 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5044 type
= SYMBOL_TYPE_DATA
;
5046 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5048 input_line_pointer
+= 5;
5049 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5050 type
= SYMBOL_TYPE_ENTRY
;
5052 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5054 input_line_pointer
+= 9;
5055 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5056 type
= SYMBOL_TYPE_MILLICODE
;
5058 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5060 input_line_pointer
+= 6;
5061 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5062 type
= SYMBOL_TYPE_PLABEL
;
5064 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5066 input_line_pointer
+= 8;
5067 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5068 type
= SYMBOL_TYPE_PRI_PROG
;
5070 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5072 input_line_pointer
+= 8;
5073 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5074 type
= SYMBOL_TYPE_SEC_PROG
;
5077 /* SOM requires much more information about symbol types
5078 than BFD understands. This is how we get this information
5079 to the SOM BFD backend. */
5080 #ifdef obj_set_symbol_type
5081 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5084 /* Now that the type of the exported symbol has been handled,
5085 handle any argument relocation information. */
5086 while (!is_end_of_statement ())
5088 if (*input_line_pointer
== ',')
5089 input_line_pointer
++;
5090 name
= input_line_pointer
;
5091 c
= get_symbol_end ();
5092 /* Argument sources. */
5093 if ((strncasecmp (name
, "argw", 4) == 0))
5095 p
= input_line_pointer
;
5097 input_line_pointer
++;
5098 temp
= atoi (name
+ 4);
5099 name
= input_line_pointer
;
5100 c
= get_symbol_end ();
5101 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5103 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5105 *input_line_pointer
= c
;
5107 /* The return value. */
5108 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5110 p
= input_line_pointer
;
5112 input_line_pointer
++;
5113 name
= input_line_pointer
;
5114 c
= get_symbol_end ();
5115 arg_reloc
= pa_build_arg_reloc (name
);
5117 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5119 *input_line_pointer
= c
;
5121 /* Privelege level. */
5122 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5124 p
= input_line_pointer
;
5126 input_line_pointer
++;
5127 temp
= atoi (input_line_pointer
);
5129 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5131 c
= get_symbol_end ();
5132 *input_line_pointer
= c
;
5136 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5137 p
= input_line_pointer
;
5140 if (!is_end_of_statement ())
5141 input_line_pointer
++;
5145 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5146 assembly file must either be defined in the assembly file, or
5147 explicitly IMPORTED from another. */
5156 name
= input_line_pointer
;
5157 c
= get_symbol_end ();
5159 symbol
= symbol_find (name
);
5160 /* Ugh. We might be importing a symbol defined earlier in the file,
5161 in which case all the code below will really screw things up
5162 (set the wrong segment, symbol flags & type, etc). */
5163 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5165 symbol
= symbol_find_or_make (name
);
5166 p
= input_line_pointer
;
5169 if (!is_end_of_statement ())
5171 input_line_pointer
++;
5172 pa_type_args (symbol
, 0);
5176 /* Sigh. To be compatable with the HP assembler and to help
5177 poorly written assembly code, we assign a type based on
5178 the the current segment. Note only BSF_FUNCTION really
5179 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5180 if (now_seg
== text_section
)
5181 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5183 /* If the section is undefined, then the symbol is undefined
5184 Since this is an import, leave the section undefined. */
5185 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5190 /* The symbol was already defined. Just eat everything up to
5191 the end of the current statement. */
5192 while (!is_end_of_statement ())
5193 input_line_pointer
++;
5196 demand_empty_rest_of_line ();
5199 /* Handle a .LABEL pseudo-op. */
5207 name
= input_line_pointer
;
5208 c
= get_symbol_end ();
5210 if (strlen (name
) > 0)
5213 p
= input_line_pointer
;
5218 as_warn (_("Missing label name on .LABEL"));
5221 if (!is_end_of_statement ())
5223 as_warn (_("extra .LABEL arguments ignored."));
5224 ignore_rest_of_line ();
5226 demand_empty_rest_of_line ();
5229 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5236 /* We must have a valid space and subspace. */
5237 pa_check_current_space_and_subspace ();
5240 as_bad (_("The .LEAVE pseudo-op is not supported"));
5241 demand_empty_rest_of_line ();
5244 /* Handle a .LEVEL pseudo-op. */
5252 level
= input_line_pointer
;
5253 if (strncmp (level
, "1.0", 3) == 0)
5255 input_line_pointer
+= 3;
5256 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5257 as_warn (_("could not set architecture and machine"));
5259 else if (strncmp (level
, "1.1", 3) == 0)
5261 input_line_pointer
+= 3;
5262 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5263 as_warn (_("could not set architecture and machine"));
5265 else if (strncmp (level
, "2.0w", 4) == 0)
5267 input_line_pointer
+= 4;
5268 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5269 as_warn (_("could not set architecture and machine"));
5271 else if (strncmp (level
, "2.0", 3) == 0)
5273 input_line_pointer
+= 3;
5274 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5275 as_warn (_("could not set architecture and machine"));
5279 as_bad (_("Unrecognized .LEVEL argument\n"));
5280 ignore_rest_of_line ();
5282 demand_empty_rest_of_line ();
5285 /* Handle a .ORIGIN pseudo-op. */
5292 /* We must have a valid space and subspace. */
5293 pa_check_current_space_and_subspace ();
5297 pa_undefine_label ();
5300 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5301 is for static functions. FIXME. Should share more code with .EXPORT. */
5310 name
= input_line_pointer
;
5311 c
= get_symbol_end ();
5313 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5315 as_bad (_("Cannot define static symbol: %s\n"), name
);
5316 p
= input_line_pointer
;
5318 input_line_pointer
++;
5322 S_CLEAR_EXTERNAL (symbol
);
5323 p
= input_line_pointer
;
5325 if (!is_end_of_statement ())
5327 input_line_pointer
++;
5328 pa_type_args (symbol
, 0);
5332 demand_empty_rest_of_line ();
5335 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5336 of a procedure from a syntatical point of view. */
5342 struct call_info
*call_info
;
5345 /* We must have a valid space and subspace. */
5346 pa_check_current_space_and_subspace ();
5349 if (within_procedure
)
5350 as_fatal (_("Nested procedures"));
5352 /* Reset global variables for new procedure. */
5353 callinfo_found
= FALSE
;
5354 within_procedure
= TRUE
;
5356 /* Create another call_info structure. */
5357 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5360 as_fatal (_("Cannot allocate unwind descriptor\n"));
5362 memset (call_info
, 0, sizeof (struct call_info
));
5364 call_info
->ci_next
= NULL
;
5366 if (call_info_root
== NULL
)
5368 call_info_root
= call_info
;
5369 last_call_info
= call_info
;
5373 last_call_info
->ci_next
= call_info
;
5374 last_call_info
= call_info
;
5377 /* set up defaults on call_info structure */
5379 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5380 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5381 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5383 /* If we got a .PROC pseudo-op, we know that the function is defined
5384 locally. Make sure it gets into the symbol table. */
5386 label_symbol_struct
*label_symbol
= pa_get_label ();
5390 if (label_symbol
->lss_label
)
5392 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5393 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5396 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5399 last_call_info
->start_symbol
= NULL
;
5402 demand_empty_rest_of_line ();
5405 /* Process the syntatical end of a procedure. Make sure all the
5406 appropriate pseudo-ops were found within the procedure. */
5414 /* We must have a valid space and subspace. */
5415 pa_check_current_space_and_subspace ();
5418 /* If we are within a procedure definition, make sure we've
5419 defined a label for the procedure; handle case where the
5420 label was defined after the .PROC directive.
5422 Note there's not need to diddle with the segment or fragment
5423 for the label symbol in this case. We have already switched
5424 into the new $CODE$ subspace at this point. */
5425 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5427 label_symbol_struct
*label_symbol
= pa_get_label ();
5431 if (label_symbol
->lss_label
)
5433 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5434 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5437 /* Also handle allocation of a fixup to hold the unwind
5438 information when the label appears after the proc/procend. */
5439 if (within_entry_exit
)
5441 char *where
= frag_more (0);
5443 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5444 NULL
, (offsetT
) 0, NULL
,
5445 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5446 (int *) &last_call_info
->ci_unwind
.descriptor
);
5451 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5454 as_bad (_("Missing function name for .PROC"));
5457 if (!within_procedure
)
5458 as_bad (_("misplaced .procend"));
5460 if (!callinfo_found
)
5461 as_bad (_("Missing .callinfo for this procedure"));
5463 if (within_entry_exit
)
5464 as_bad (_("Missing .EXIT for a .ENTRY"));
5467 /* ELF needs to mark the end of each function so that it can compute
5468 the size of the function (apparently its needed in the symbol table). */
5469 hppa_elf_mark_end_of_function ();
5472 within_procedure
= FALSE
;
5473 demand_empty_rest_of_line ();
5474 pa_undefine_label ();
5477 /* If VALUE is an exact power of two between zero and 2^31, then
5478 return log2 (VALUE). Else return -1. */
5486 while ((1 << shift
) != value
&& shift
< 32)
5497 /* Check to make sure we have a valid space and subspace. */
5500 pa_check_current_space_and_subspace ()
5502 if (current_space
== NULL
)
5503 as_fatal (_("Not in a space.\n"));
5505 if (current_subspace
== NULL
)
5506 as_fatal (_("Not in a subspace.\n"));
5509 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5510 then create a new space entry to hold the information specified
5511 by the parameters to the .SPACE directive. */
5513 static sd_chain_struct
*
5514 pa_parse_space_stmt (space_name
, create_flag
)
5518 char *name
, *ptemp
, c
;
5519 char loadable
, defined
, private, sort
;
5521 asection
*seg
= NULL
;
5522 sd_chain_struct
*space
;
5524 /* load default values */
5530 if (strcmp (space_name
, "$TEXT$") == 0)
5532 seg
= pa_def_spaces
[0].segment
;
5533 defined
= pa_def_spaces
[0].defined
;
5534 private = pa_def_spaces
[0].private;
5535 sort
= pa_def_spaces
[0].sort
;
5536 spnum
= pa_def_spaces
[0].spnum
;
5538 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5540 seg
= pa_def_spaces
[1].segment
;
5541 defined
= pa_def_spaces
[1].defined
;
5542 private = pa_def_spaces
[1].private;
5543 sort
= pa_def_spaces
[1].sort
;
5544 spnum
= pa_def_spaces
[1].spnum
;
5547 if (!is_end_of_statement ())
5549 print_errors
= FALSE
;
5550 ptemp
= input_line_pointer
+ 1;
5551 /* First see if the space was specified as a number rather than
5552 as a name. According to the PA assembly manual the rest of
5553 the line should be ignored. */
5554 temp
= pa_parse_number (&ptemp
, 0);
5558 input_line_pointer
= ptemp
;
5562 while (!is_end_of_statement ())
5564 input_line_pointer
++;
5565 name
= input_line_pointer
;
5566 c
= get_symbol_end ();
5567 if ((strncasecmp (name
, "spnum", 5) == 0))
5569 *input_line_pointer
= c
;
5570 input_line_pointer
++;
5571 spnum
= get_absolute_expression ();
5573 else if ((strncasecmp (name
, "sort", 4) == 0))
5575 *input_line_pointer
= c
;
5576 input_line_pointer
++;
5577 sort
= get_absolute_expression ();
5579 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5581 *input_line_pointer
= c
;
5584 else if ((strncasecmp (name
, "notdefined", 10) == 0))
5586 *input_line_pointer
= c
;
5589 else if ((strncasecmp (name
, "private", 7) == 0))
5591 *input_line_pointer
= c
;
5596 as_bad (_("Invalid .SPACE argument"));
5597 *input_line_pointer
= c
;
5598 if (!is_end_of_statement ())
5599 input_line_pointer
++;
5603 print_errors
= TRUE
;
5606 if (create_flag
&& seg
== NULL
)
5607 seg
= subseg_new (space_name
, 0);
5609 /* If create_flag is nonzero, then create the new space with
5610 the attributes computed above. Else set the values in
5611 an already existing space -- this can only happen for
5612 the first occurence of a built-in space. */
5614 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
5615 private, sort
, seg
, 1);
5618 space
= is_defined_space (space_name
);
5619 SPACE_SPNUM (space
) = spnum
;
5620 SPACE_DEFINED (space
) = defined
& 1;
5621 SPACE_USER_DEFINED (space
) = 1;
5624 #ifdef obj_set_section_attributes
5625 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
5631 /* Handle a .SPACE pseudo-op; this switches the current space to the
5632 given space, creating the new space if necessary. */
5638 char *name
, c
, *space_name
, *save_s
;
5640 sd_chain_struct
*sd_chain
;
5642 if (within_procedure
)
5644 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
5645 ignore_rest_of_line ();
5649 /* Check for some of the predefined spaces. FIXME: most of the code
5650 below is repeated several times, can we extract the common parts
5651 and place them into a subroutine or something similar? */
5652 /* FIXME Is this (and the next IF stmt) really right?
5653 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5654 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
5656 input_line_pointer
+= 6;
5657 sd_chain
= is_defined_space ("$TEXT$");
5658 if (sd_chain
== NULL
)
5659 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
5660 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5661 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
5663 current_space
= sd_chain
;
5664 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
5666 = pa_subsegment_to_subspace (text_section
,
5667 sd_chain
->sd_last_subseg
);
5668 demand_empty_rest_of_line ();
5671 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
5673 input_line_pointer
+= 9;
5674 sd_chain
= is_defined_space ("$PRIVATE$");
5675 if (sd_chain
== NULL
)
5676 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
5677 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5678 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
5680 current_space
= sd_chain
;
5681 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
5683 = pa_subsegment_to_subspace (data_section
,
5684 sd_chain
->sd_last_subseg
);
5685 demand_empty_rest_of_line ();
5688 if (!strncasecmp (input_line_pointer
,
5689 GDB_DEBUG_SPACE_NAME
,
5690 strlen (GDB_DEBUG_SPACE_NAME
)))
5692 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
5693 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
5694 if (sd_chain
== NULL
)
5695 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
5696 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5697 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
5699 current_space
= sd_chain
;
5702 asection
*gdb_section
5703 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
5705 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
5707 = pa_subsegment_to_subspace (gdb_section
,
5708 sd_chain
->sd_last_subseg
);
5710 demand_empty_rest_of_line ();
5714 /* It could be a space specified by number. */
5716 save_s
= input_line_pointer
;
5717 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
5719 if ((sd_chain
= pa_find_space_by_number (temp
)))
5721 current_space
= sd_chain
;
5723 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5725 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5726 sd_chain
->sd_last_subseg
);
5727 demand_empty_rest_of_line ();
5732 /* Not a number, attempt to create a new space. */
5734 input_line_pointer
= save_s
;
5735 name
= input_line_pointer
;
5736 c
= get_symbol_end ();
5737 space_name
= xmalloc (strlen (name
) + 1);
5738 strcpy (space_name
, name
);
5739 *input_line_pointer
= c
;
5741 sd_chain
= pa_parse_space_stmt (space_name
, 1);
5742 current_space
= sd_chain
;
5744 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5745 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5746 sd_chain
->sd_last_subseg
);
5747 demand_empty_rest_of_line ();
5751 /* Switch to a new space. (I think). FIXME. */
5760 sd_chain_struct
*space
;
5762 name
= input_line_pointer
;
5763 c
= get_symbol_end ();
5764 space
= is_defined_space (name
);
5768 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
5771 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
5773 *input_line_pointer
= c
;
5774 demand_empty_rest_of_line ();
5777 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
5778 given subspace, creating the new subspace if necessary.
5780 FIXME. Should mirror pa_space more closely, in particular how
5781 they're broken up into subroutines. */
5784 pa_subspace (create_new
)
5787 char *name
, *ss_name
, c
;
5788 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
5789 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
5790 sd_chain_struct
*space
;
5791 ssd_chain_struct
*ssd
;
5794 if (current_space
== NULL
)
5795 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
5797 if (within_procedure
)
5799 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
5800 ignore_rest_of_line ();
5804 name
= input_line_pointer
;
5805 c
= get_symbol_end ();
5806 ss_name
= xmalloc (strlen (name
) + 1);
5807 strcpy (ss_name
, name
);
5808 *input_line_pointer
= c
;
5810 /* Load default values. */
5822 space
= current_space
;
5826 ssd
= is_defined_subspace (ss_name
);
5827 /* Allow user to override the builtin attributes of subspaces. But
5828 only allow the attributes to be changed once! */
5829 if (ssd
&& SUBSPACE_DEFINED (ssd
))
5831 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
5832 current_subspace
= ssd
;
5833 if (!is_end_of_statement ())
5834 as_warn (_("Parameters of an existing subspace can\'t be modified"));
5835 demand_empty_rest_of_line ();
5840 /* A new subspace. Load default values if it matches one of
5841 the builtin subspaces. */
5843 while (pa_def_subspaces
[i
].name
)
5845 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
5847 loadable
= pa_def_subspaces
[i
].loadable
;
5848 common
= pa_def_subspaces
[i
].common
;
5849 dup_common
= pa_def_subspaces
[i
].dup_common
;
5850 code_only
= pa_def_subspaces
[i
].code_only
;
5851 zero
= pa_def_subspaces
[i
].zero
;
5852 space_index
= pa_def_subspaces
[i
].space_index
;
5853 alignment
= pa_def_subspaces
[i
].alignment
;
5854 quadrant
= pa_def_subspaces
[i
].quadrant
;
5855 access
= pa_def_subspaces
[i
].access
;
5856 sort
= pa_def_subspaces
[i
].sort
;
5863 /* We should be working with a new subspace now. Fill in
5864 any information as specified by the user. */
5865 if (!is_end_of_statement ())
5867 input_line_pointer
++;
5868 while (!is_end_of_statement ())
5870 name
= input_line_pointer
;
5871 c
= get_symbol_end ();
5872 if ((strncasecmp (name
, "quad", 4) == 0))
5874 *input_line_pointer
= c
;
5875 input_line_pointer
++;
5876 quadrant
= get_absolute_expression ();
5878 else if ((strncasecmp (name
, "align", 5) == 0))
5880 *input_line_pointer
= c
;
5881 input_line_pointer
++;
5882 alignment
= get_absolute_expression ();
5883 if (log2 (alignment
) == -1)
5885 as_bad (_("Alignment must be a power of 2"));
5889 else if ((strncasecmp (name
, "access", 6) == 0))
5891 *input_line_pointer
= c
;
5892 input_line_pointer
++;
5893 access
= get_absolute_expression ();
5895 else if ((strncasecmp (name
, "sort", 4) == 0))
5897 *input_line_pointer
= c
;
5898 input_line_pointer
++;
5899 sort
= get_absolute_expression ();
5901 else if ((strncasecmp (name
, "code_only", 9) == 0))
5903 *input_line_pointer
= c
;
5906 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5908 *input_line_pointer
= c
;
5911 else if ((strncasecmp (name
, "common", 6) == 0))
5913 *input_line_pointer
= c
;
5916 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
5918 *input_line_pointer
= c
;
5921 else if ((strncasecmp (name
, "zero", 4) == 0))
5923 *input_line_pointer
= c
;
5926 else if ((strncasecmp (name
, "first", 5) == 0))
5927 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
5929 as_bad (_("Invalid .SUBSPACE argument"));
5930 if (!is_end_of_statement ())
5931 input_line_pointer
++;
5935 /* Compute a reasonable set of BFD flags based on the information
5936 in the .subspace directive. */
5937 applicable
= bfd_applicable_section_flags (stdoutput
);
5940 flags
|= (SEC_ALLOC
| SEC_LOAD
);
5943 if (common
|| dup_common
)
5944 flags
|= SEC_IS_COMMON
;
5946 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
5948 /* This is a zero-filled subspace (eg BSS). */
5950 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
5952 applicable
&= flags
;
5954 /* If this is an existing subspace, then we want to use the
5955 segment already associated with the subspace.
5957 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5958 lots of sections. It might be a problem in the PA ELF
5959 code, I do not know yet. For now avoid creating anything
5960 but the "standard" sections for ELF. */
5962 section
= subseg_force_new (ss_name
, 0);
5964 section
= ssd
->ssd_seg
;
5966 section
= subseg_new (ss_name
, 0);
5969 seg_info (section
)->bss
= 1;
5971 /* Now set the flags. */
5972 bfd_set_section_flags (stdoutput
, section
, applicable
);
5974 /* Record any alignment request for this section. */
5975 record_alignment (section
, log2 (alignment
));
5977 /* Set the starting offset for this section. */
5978 bfd_set_section_vma (stdoutput
, section
,
5979 pa_subspace_start (space
, quadrant
));
5981 /* Now that all the flags are set, update an existing subspace,
5982 or create a new one. */
5985 current_subspace
= update_subspace (space
, ss_name
, loadable
,
5986 code_only
, common
, dup_common
,
5987 sort
, zero
, access
, space_index
,
5988 alignment
, quadrant
,
5991 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
5993 dup_common
, zero
, sort
,
5994 access
, space_index
,
5995 alignment
, quadrant
, section
);
5997 demand_empty_rest_of_line ();
5998 current_subspace
->ssd_seg
= section
;
5999 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6001 SUBSPACE_DEFINED (current_subspace
) = 1;
6005 /* Create default space and subspace dictionaries. */
6012 space_dict_root
= NULL
;
6013 space_dict_last
= NULL
;
6016 while (pa_def_spaces
[i
].name
)
6020 /* Pick the right name to use for the new section. */
6021 name
= pa_def_spaces
[i
].name
;
6023 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6024 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6025 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6026 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6027 pa_def_spaces
[i
].segment
, 0);
6032 while (pa_def_subspaces
[i
].name
)
6035 int applicable
, subsegment
;
6036 asection
*segment
= NULL
;
6037 sd_chain_struct
*space
;
6039 /* Pick the right name for the new section and pick the right
6040 subsegment number. */
6041 name
= pa_def_subspaces
[i
].name
;
6044 /* Create the new section. */
6045 segment
= subseg_new (name
, subsegment
);
6048 /* For SOM we want to replace the standard .text, .data, and .bss
6049 sections with our own. We also want to set BFD flags for
6050 all the built-in subspaces. */
6051 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6053 text_section
= segment
;
6054 applicable
= bfd_applicable_section_flags (stdoutput
);
6055 bfd_set_section_flags (stdoutput
, segment
,
6056 applicable
& (SEC_ALLOC
| SEC_LOAD
6057 | SEC_RELOC
| SEC_CODE
6059 | SEC_HAS_CONTENTS
));
6061 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6063 data_section
= segment
;
6064 applicable
= bfd_applicable_section_flags (stdoutput
);
6065 bfd_set_section_flags (stdoutput
, segment
,
6066 applicable
& (SEC_ALLOC
| SEC_LOAD
6068 | SEC_HAS_CONTENTS
));
6072 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6074 bss_section
= segment
;
6075 applicable
= bfd_applicable_section_flags (stdoutput
);
6076 bfd_set_section_flags (stdoutput
, segment
,
6077 applicable
& SEC_ALLOC
);
6079 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6081 applicable
= bfd_applicable_section_flags (stdoutput
);
6082 bfd_set_section_flags (stdoutput
, segment
,
6083 applicable
& (SEC_ALLOC
| SEC_LOAD
6086 | SEC_HAS_CONTENTS
));
6088 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6090 applicable
= bfd_applicable_section_flags (stdoutput
);
6091 bfd_set_section_flags (stdoutput
, segment
,
6092 applicable
& (SEC_ALLOC
| SEC_LOAD
6095 | SEC_HAS_CONTENTS
));
6097 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6099 applicable
= bfd_applicable_section_flags (stdoutput
);
6100 bfd_set_section_flags (stdoutput
, segment
,
6101 applicable
& (SEC_ALLOC
| SEC_LOAD
6104 | SEC_HAS_CONTENTS
));
6107 /* Find the space associated with this subspace. */
6108 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6109 def_space_index
].segment
);
6112 as_fatal (_("Internal error: Unable to find containing space for %s."),
6113 pa_def_subspaces
[i
].name
);
6116 create_new_subspace (space
, name
,
6117 pa_def_subspaces
[i
].loadable
,
6118 pa_def_subspaces
[i
].code_only
,
6119 pa_def_subspaces
[i
].common
,
6120 pa_def_subspaces
[i
].dup_common
,
6121 pa_def_subspaces
[i
].zero
,
6122 pa_def_subspaces
[i
].sort
,
6123 pa_def_subspaces
[i
].access
,
6124 pa_def_subspaces
[i
].space_index
,
6125 pa_def_subspaces
[i
].alignment
,
6126 pa_def_subspaces
[i
].quadrant
,
6134 /* Create a new space NAME, with the appropriate flags as defined
6135 by the given parameters. */
6137 static sd_chain_struct
*
6138 create_new_space (name
, spnum
, loadable
, defined
, private,
6139 sort
, seg
, user_defined
)
6149 sd_chain_struct
*chain_entry
;
6151 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6153 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6156 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6157 strcpy (SPACE_NAME (chain_entry
), name
);
6158 SPACE_DEFINED (chain_entry
) = defined
;
6159 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6160 SPACE_SPNUM (chain_entry
) = spnum
;
6162 chain_entry
->sd_seg
= seg
;
6163 chain_entry
->sd_last_subseg
= -1;
6164 chain_entry
->sd_subspaces
= NULL
;
6165 chain_entry
->sd_next
= NULL
;
6167 /* Find spot for the new space based on its sort key. */
6168 if (!space_dict_last
)
6169 space_dict_last
= chain_entry
;
6171 if (space_dict_root
== NULL
)
6172 space_dict_root
= chain_entry
;
6175 sd_chain_struct
*chain_pointer
;
6176 sd_chain_struct
*prev_chain_pointer
;
6178 chain_pointer
= space_dict_root
;
6179 prev_chain_pointer
= NULL
;
6181 while (chain_pointer
)
6183 prev_chain_pointer
= chain_pointer
;
6184 chain_pointer
= chain_pointer
->sd_next
;
6187 /* At this point we've found the correct place to add the new
6188 entry. So add it and update the linked lists as appropriate. */
6189 if (prev_chain_pointer
)
6191 chain_entry
->sd_next
= chain_pointer
;
6192 prev_chain_pointer
->sd_next
= chain_entry
;
6196 space_dict_root
= chain_entry
;
6197 chain_entry
->sd_next
= chain_pointer
;
6200 if (chain_entry
->sd_next
== NULL
)
6201 space_dict_last
= chain_entry
;
6204 /* This is here to catch predefined spaces which do not get
6205 modified by the user's input. Another call is found at
6206 the bottom of pa_parse_space_stmt to handle cases where
6207 the user modifies a predefined space. */
6208 #ifdef obj_set_section_attributes
6209 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6215 /* Create a new subspace NAME, with the appropriate flags as defined
6216 by the given parameters.
6218 Add the new subspace to the subspace dictionary chain in numerical
6219 order as defined by the SORT entries. */
6221 static ssd_chain_struct
*
6222 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6223 dup_common
, is_zero
, sort
, access
, space_index
,
6224 alignment
, quadrant
, seg
)
6225 sd_chain_struct
*space
;
6227 int loadable
, code_only
, common
, dup_common
, is_zero
;
6235 ssd_chain_struct
*chain_entry
;
6237 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6239 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6241 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6242 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6244 /* Initialize subspace_defined. When we hit a .subspace directive
6245 we'll set it to 1 which "locks-in" the subspace attributes. */
6246 SUBSPACE_DEFINED (chain_entry
) = 0;
6248 chain_entry
->ssd_subseg
= 0;
6249 chain_entry
->ssd_seg
= seg
;
6250 chain_entry
->ssd_next
= NULL
;
6252 /* Find spot for the new subspace based on its sort key. */
6253 if (space
->sd_subspaces
== NULL
)
6254 space
->sd_subspaces
= chain_entry
;
6257 ssd_chain_struct
*chain_pointer
;
6258 ssd_chain_struct
*prev_chain_pointer
;
6260 chain_pointer
= space
->sd_subspaces
;
6261 prev_chain_pointer
= NULL
;
6263 while (chain_pointer
)
6265 prev_chain_pointer
= chain_pointer
;
6266 chain_pointer
= chain_pointer
->ssd_next
;
6269 /* Now we have somewhere to put the new entry. Insert it and update
6271 if (prev_chain_pointer
)
6273 chain_entry
->ssd_next
= chain_pointer
;
6274 prev_chain_pointer
->ssd_next
= chain_entry
;
6278 space
->sd_subspaces
= chain_entry
;
6279 chain_entry
->ssd_next
= chain_pointer
;
6283 #ifdef obj_set_subsection_attributes
6284 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6291 /* Update the information for the given subspace based upon the
6292 various arguments. Return the modified subspace chain entry. */
6294 static ssd_chain_struct
*
6295 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6296 zero
, access
, space_index
, alignment
, quadrant
, section
)
6297 sd_chain_struct
*space
;
6311 ssd_chain_struct
*chain_entry
;
6313 chain_entry
= is_defined_subspace (name
);
6315 #ifdef obj_set_subsection_attributes
6316 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6323 /* Return the space chain entry for the space with the name NAME or
6324 NULL if no such space exists. */
6326 static sd_chain_struct
*
6327 is_defined_space (name
)
6330 sd_chain_struct
*chain_pointer
;
6332 for (chain_pointer
= space_dict_root
;
6334 chain_pointer
= chain_pointer
->sd_next
)
6336 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6337 return chain_pointer
;
6340 /* No mapping from segment to space was found. Return NULL. */
6344 /* Find and return the space associated with the given seg. If no mapping
6345 from the given seg to a space is found, then return NULL.
6347 Unlike subspaces, the number of spaces is not expected to grow much,
6348 so a linear exhaustive search is OK here. */
6350 static sd_chain_struct
*
6351 pa_segment_to_space (seg
)
6354 sd_chain_struct
*space_chain
;
6356 /* Walk through each space looking for the correct mapping. */
6357 for (space_chain
= space_dict_root
;
6359 space_chain
= space_chain
->sd_next
)
6361 if (space_chain
->sd_seg
== seg
)
6365 /* Mapping was not found. Return NULL. */
6369 /* Return the space chain entry for the subspace with the name NAME or
6370 NULL if no such subspace exists.
6372 Uses a linear search through all the spaces and subspaces, this may
6373 not be appropriate if we ever being placing each function in its
6376 static ssd_chain_struct
*
6377 is_defined_subspace (name
)
6380 sd_chain_struct
*space_chain
;
6381 ssd_chain_struct
*subspace_chain
;
6383 /* Walk through each space. */
6384 for (space_chain
= space_dict_root
;
6386 space_chain
= space_chain
->sd_next
)
6388 /* Walk through each subspace looking for a name which matches. */
6389 for (subspace_chain
= space_chain
->sd_subspaces
;
6391 subspace_chain
= subspace_chain
->ssd_next
)
6392 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6393 return subspace_chain
;
6396 /* Subspace wasn't found. Return NULL. */
6400 /* Find and return the subspace associated with the given seg. If no
6401 mapping from the given seg to a subspace is found, then return NULL.
6403 If we ever put each procedure/function within its own subspace
6404 (to make life easier on the compiler and linker), then this will have
6405 to become more efficient. */
6407 static ssd_chain_struct
*
6408 pa_subsegment_to_subspace (seg
, subseg
)
6412 sd_chain_struct
*space_chain
;
6413 ssd_chain_struct
*subspace_chain
;
6415 /* Walk through each space. */
6416 for (space_chain
= space_dict_root
;
6418 space_chain
= space_chain
->sd_next
)
6420 if (space_chain
->sd_seg
== seg
)
6422 /* Walk through each subspace within each space looking for
6423 the correct mapping. */
6424 for (subspace_chain
= space_chain
->sd_subspaces
;
6426 subspace_chain
= subspace_chain
->ssd_next
)
6427 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6428 return subspace_chain
;
6432 /* No mapping from subsegment to subspace found. Return NULL. */
6436 /* Given a number, try and find a space with the name number.
6438 Return a pointer to a space dictionary chain entry for the space
6439 that was found or NULL on failure. */
6441 static sd_chain_struct
*
6442 pa_find_space_by_number (number
)
6445 sd_chain_struct
*space_chain
;
6447 for (space_chain
= space_dict_root
;
6449 space_chain
= space_chain
->sd_next
)
6451 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6455 /* No appropriate space found. Return NULL. */
6459 /* Return the starting address for the given subspace. If the starting
6460 address is unknown then return zero. */
6463 pa_subspace_start (space
, quadrant
)
6464 sd_chain_struct
*space
;
6467 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6468 is not correct for the PA OSF1 port. */
6469 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6471 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6478 /* FIXME. Needs documentation. */
6480 pa_next_subseg (space
)
6481 sd_chain_struct
*space
;
6484 space
->sd_last_subseg
++;
6485 return space
->sd_last_subseg
;
6489 /* Helper function for pa_stringer. Used to find the end of
6496 unsigned int c
= *s
& CHAR_MASK
;
6499 /* We must have a valid space and subspace. */
6500 pa_check_current_space_and_subspace ();
6514 /* Handle a .STRING type pseudo-op. */
6517 pa_stringer (append_zero
)
6520 char *s
, num_buf
[4];
6524 /* Preprocess the string to handle PA-specific escape sequences.
6525 For example, \xDD where DD is a hexidecimal number should be
6526 changed to \OOO where OOO is an octal number. */
6528 /* Skip the opening quote. */
6529 s
= input_line_pointer
+ 1;
6531 while (is_a_char (c
= pa_stringer_aux (s
++)))
6538 /* Handle \x<num>. */
6541 unsigned int number
;
6546 /* Get pas the 'x'. */
6548 for (num_digit
= 0, number
= 0, dg
= *s
;
6550 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6551 || (dg
>= 'A' && dg
<= 'F'));
6555 number
= number
* 16 + dg
- '0';
6556 else if (dg
>= 'a' && dg
<= 'f')
6557 number
= number
* 16 + dg
- 'a' + 10;
6559 number
= number
* 16 + dg
- 'A' + 10;
6569 sprintf (num_buf
, "%02o", number
);
6572 sprintf (num_buf
, "%03o", number
);
6575 for (i
= 0; i
<= num_digit
; i
++)
6576 s_start
[i
] = num_buf
[i
];
6580 /* This might be a "\"", skip over the escaped char. */
6587 stringer (append_zero
);
6588 pa_undefine_label ();
6591 /* Handle a .VERSION pseudo-op. */
6598 pa_undefine_label ();
6603 /* Handle a .COMPILER pseudo-op. */
6606 pa_compiler (unused
)
6609 obj_som_compiler (0);
6610 pa_undefine_label ();
6615 /* Handle a .COPYRIGHT pseudo-op. */
6618 pa_copyright (unused
)
6622 pa_undefine_label ();
6625 /* Just like a normal cons, but when finished we have to undefine
6626 the latest space label. */
6633 pa_undefine_label ();
6636 /* Switch to the data space. As usual delete our label. */
6643 current_space
= is_defined_space ("$PRIVATE$");
6645 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6648 pa_undefine_label ();
6651 /* Like float_cons, but we need to undefine our label. */
6654 pa_float_cons (float_type
)
6657 float_cons (float_type
);
6658 pa_undefine_label ();
6661 /* Like s_fill, but delete our label when finished. */
6668 /* We must have a valid space and subspace. */
6669 pa_check_current_space_and_subspace ();
6673 pa_undefine_label ();
6676 /* Like lcomm, but delete our label when finished. */
6679 pa_lcomm (needs_align
)
6683 /* We must have a valid space and subspace. */
6684 pa_check_current_space_and_subspace ();
6687 s_lcomm (needs_align
);
6688 pa_undefine_label ();
6691 /* Like lsym, but delete our label when finished. */
6698 /* We must have a valid space and subspace. */
6699 pa_check_current_space_and_subspace ();
6703 pa_undefine_label ();
6706 /* Switch to the text space. Like s_text, but delete our
6707 label when finished. */
6713 current_space
= is_defined_space ("$TEXT$");
6715 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6719 pa_undefine_label ();
6722 /* On the PA relocations which involve function symbols must not be
6723 adjusted. This so that the linker can know when/how to create argument
6724 relocation stubs for indirect calls and calls to static functions.
6726 "T" field selectors create DLT relative fixups for accessing
6727 globals and statics in PIC code; each DLT relative fixup creates
6728 an entry in the DLT table. The entries contain the address of
6729 the final target (eg accessing "foo" would create a DLT entry
6730 with the address of "foo").
6732 Unfortunately, the HP linker doesn't take into account any addend
6733 when generating the DLT; so accessing $LIT$+8 puts the address of
6734 $LIT$ into the DLT rather than the address of $LIT$+8.
6736 The end result is we can't perform relocation symbol reductions for
6737 any fixup which creates entries in the DLT (eg they use "T" field
6740 Reject reductions involving symbols with external scope; such
6741 reductions make life a living hell for object file editors.
6743 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6744 the code space. The SOM BFD backend doesn't know how to pull the
6745 right bits out of an instruction. */
6748 hppa_fix_adjustable (fixp
)
6751 struct hppa_fix_struct
*hppa_fix
;
6753 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6756 /* Reject reductions of symbols in 32bit relocs. */
6757 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
6760 /* Reject reductions of symbols in sym1-sym2 expressions when
6761 the fixup will occur in a CODE subspace.
6763 XXX FIXME: Long term we probably want to reject all of these;
6764 for example reducing in the debug section would lose if we ever
6765 supported using the optimizing hp linker. */
6768 && (hppa_fix
->segment
->flags
& SEC_CODE
))
6770 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
6771 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
6775 /* We can't adjust any relocs that use LR% and RR% field selectors.
6776 That confuses the HP linker. */
6777 if (hppa_fix
->fx_r_field
== e_lrsel
6778 || hppa_fix
->fx_r_field
== e_rrsel
6779 || hppa_fix
->fx_r_field
== e_nlrsel
)
6783 /* Reject reductions of symbols in DLT relative relocs,
6784 relocations with plabels. */
6785 if (hppa_fix
->fx_r_field
== e_tsel
6786 || hppa_fix
->fx_r_field
== e_ltsel
6787 || hppa_fix
->fx_r_field
== e_rtsel
6788 || hppa_fix
->fx_r_field
== e_psel
6789 || hppa_fix
->fx_r_field
== e_rpsel
6790 || hppa_fix
->fx_r_field
== e_lpsel
)
6793 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
6796 /* Reject absolute calls (jumps). */
6797 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
6800 /* Reject reductions of function symbols. */
6801 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
6807 /* Return nonzero if the fixup in FIXP will require a relocation,
6808 even it if appears that the fixup could be completely handled
6812 hppa_force_relocation (fixp
)
6815 struct hppa_fix_struct
*hppa_fixp
;
6818 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6820 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
6821 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
6822 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
6823 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
6824 || fixp
->fx_r_type
== R_HPPA_END_TRY
6825 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
6826 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
6830 #define arg_reloc_stub_needed(CALLER, CALLEE) \
6831 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6834 /* It is necessary to force PC-relative calls/jumps to have a relocation
6835 entry if they're going to need either a argument relocation or long
6836 call stub. FIXME. Can't we need the same for absolute calls? */
6837 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
6838 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
6839 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
6840 hppa_fixp
->fx_arg_reloc
)))
6843 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
6844 - md_pcrel_from (fixp
));
6845 /* Now check and see if we're going to need a long-branch stub. */
6846 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
6847 && (distance
> 262143 || distance
< -262144))
6850 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
6852 #undef arg_reloc_stub_needed
6854 /* No need (yet) to force another relocations to be emitted. */
6858 /* Now for some ELF specific code. FIXME. */
6860 /* Mark the end of a function so that it's possible to compute
6861 the size of the function in hppa_elf_final_processing. */
6864 hppa_elf_mark_end_of_function ()
6866 /* ELF does not have EXIT relocations. All we do is create a
6867 temporary symbol marking the end of the function. */
6868 char *name
= (char *)
6869 xmalloc (strlen ("L$\001end_") +
6870 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
6876 strcpy (name
, "L$\001end_");
6877 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
6879 /* If we have a .exit followed by a .procend, then the
6880 symbol will have already been defined. */
6881 symbolP
= symbol_find (name
);
6884 /* The symbol has already been defined! This can
6885 happen if we have a .exit followed by a .procend.
6887 This is *not* an error. All we want to do is free
6888 the memory we just allocated for the name and continue. */
6893 /* symbol value should be the offset of the
6894 last instruction of the function */
6895 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
6899 S_CLEAR_EXTERNAL (symbolP
);
6900 symbol_table_insert (symbolP
);
6904 last_call_info
->end_symbol
= symbolP
;
6906 as_bad (_("Symbol '%s' could not be created."), name
);
6910 as_bad (_("No memory for symbol name."));
6914 /* For ELF, this function serves one purpose: to setup the st_size
6915 field of STT_FUNC symbols. To do this, we need to scan the
6916 call_info structure list, determining st_size in by taking the
6917 difference in the address of the beginning/end marker symbols. */
6920 elf_hppa_final_processing ()
6922 struct call_info
*call_info_pointer
;
6924 for (call_info_pointer
= call_info_root
;
6926 call_info_pointer
= call_info_pointer
->ci_next
)
6928 elf_symbol_type
*esym
6929 = ((elf_symbol_type
*)
6930 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
6931 esym
->internal_elf_sym
.st_size
=
6932 S_GET_VALUE (call_info_pointer
->end_symbol
)
6933 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;