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 a source FP operand format completer at 20. */
2551 flag
= pa_parse_fp_format (&s
);
2552 the_insn
.fpof1
= flag
;
2553 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2555 /* Handle L/R register halves like 't'. */
2558 struct pa_11_fp_reg_struct result
;
2560 pa_parse_number (&s
, &result
);
2561 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2562 opcode
|= result
.number_part
;
2564 /* 0x30 opcodes are FP arithmetic operation opcodes
2565 and need to be turned into 0x38 opcodes. This
2566 is not necessary for loads/stores. */
2567 if (need_pa11_opcode (&the_insn
, &result
)
2568 && ((opcode
& 0xfc000000) == 0x30000000))
2571 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
2574 /* Handle L/R register halves like 'b'. */
2577 struct pa_11_fp_reg_struct result
;
2579 pa_parse_number (&s
, &result
);
2580 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2581 opcode
|= result
.number_part
<< 21;
2582 if (need_pa11_opcode (&the_insn
, &result
))
2584 opcode
|= (result
.l_r_select
& 1) << 7;
2590 /* Float operand 1 similar to 'b' but with l/r registers. */
2593 struct pa_11_fp_reg_struct result
;
2595 pa_parse_number (&s
, &result
);
2596 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2597 opcode
|= result
.number_part
<< 21;
2598 opcode
|= (result
.l_r_select
& 1) << 7;
2602 /* Handle L/R register halves like 'b'. */
2605 struct pa_11_fp_reg_struct result
;
2608 pa_parse_number (&s
, &result
);
2609 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2610 opcode
|= (result
.number_part
& 0x1c) << 11;
2611 opcode
|= (result
.number_part
& 0x3) << 9;
2612 opcode
|= (result
.l_r_select
& 1) << 8;
2616 /* Handle L/R register halves like 'x'. */
2619 struct pa_11_fp_reg_struct result
;
2621 pa_parse_number (&s
, &result
);
2622 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2623 opcode
|= (result
.number_part
& 0x1f) << 16;
2624 if (need_pa11_opcode (&the_insn
, &result
))
2626 opcode
|= (result
.l_r_select
& 1) << 1;
2631 /* Handle L/R register halves like 'x'. */
2634 struct pa_11_fp_reg_struct result
;
2636 pa_parse_number (&s
, &result
);
2637 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2638 opcode
|= (result
.number_part
& 0x1f) << 16;
2639 if (need_pa11_opcode (&the_insn
, &result
))
2641 opcode
|= (result
.l_r_select
& 1) << 12;
2647 /* Float operand 2, like 'x' but with l/r register halves. */
2650 struct pa_11_fp_reg_struct result
;
2652 pa_parse_number (&s
, &result
);
2653 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2654 opcode
|= (result
.number_part
& 0x1f) << 16;
2655 opcode
|= (result
.l_r_select
& 1) << 12;
2659 /* Handle a 5 bit register field at 10. */
2662 struct pa_11_fp_reg_struct result
;
2664 pa_parse_number (&s
, &result
);
2665 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2666 if (the_insn
.fpof1
== SGL
)
2668 if (result
.number_part
< 16)
2670 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2674 result
.number_part
&= 0xF;
2675 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2677 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
2680 /* Handle a 5 bit register field at 15. */
2683 struct pa_11_fp_reg_struct result
;
2685 pa_parse_number (&s
, &result
);
2686 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2687 if (the_insn
.fpof1
== SGL
)
2689 if (result
.number_part
< 16)
2691 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2694 result
.number_part
&= 0xF;
2695 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2697 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
2700 /* Handle a 5 bit register field at 31. */
2703 struct pa_11_fp_reg_struct result
;
2705 pa_parse_number (&s
, &result
);
2706 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2707 if (the_insn
.fpof1
== SGL
)
2709 if (result
.number_part
< 16)
2711 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2714 result
.number_part
&= 0xF;
2715 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2717 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
2720 /* Handle a 5 bit register field at 20. */
2723 struct pa_11_fp_reg_struct result
;
2725 pa_parse_number (&s
, &result
);
2726 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2727 if (the_insn
.fpof1
== SGL
)
2729 if (result
.number_part
< 16)
2731 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2734 result
.number_part
&= 0xF;
2735 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2737 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
2740 /* Handle a 5 bit register field at 25. */
2743 struct pa_11_fp_reg_struct result
;
2745 pa_parse_number (&s
, &result
);
2746 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2747 if (the_insn
.fpof1
== SGL
)
2749 if (result
.number_part
< 16)
2751 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2754 result
.number_part
&= 0xF;
2755 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2757 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
2760 /* Handle a floating point operand format at 26.
2761 Only allows single and double precision. */
2763 flag
= pa_parse_fp_format (&s
);
2769 the_insn
.fpof1
= flag
;
2775 as_bad (_("Invalid Floating Point Operand Format."));
2786 /* Check if the args matched. */
2789 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
2790 && !strcmp (insn
->name
, insn
[1].name
))
2798 as_bad (_("Invalid operands %s"), error_message
);
2805 the_insn
.opcode
= opcode
;
2808 /* Turn a string in input_line_pointer into a floating point constant of type
2809 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
2810 emitted is stored in *sizeP . An error message or NULL is returned. */
2812 #define MAX_LITTLENUMS 6
2815 md_atof (type
, litP
, sizeP
)
2821 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
2822 LITTLENUM_TYPE
*wordP
;
2854 return _("Bad call to MD_ATOF()");
2856 t
= atof_ieee (input_line_pointer
, type
, words
);
2858 input_line_pointer
= t
;
2859 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
2860 for (wordP
= words
; prec
--;)
2862 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
2863 litP
+= sizeof (LITTLENUM_TYPE
);
2868 /* Write out big-endian. */
2871 md_number_to_chars (buf
, val
, n
)
2876 number_to_chars_bigendian (buf
, val
, n
);
2879 /* Translate internal representation of relocation info to BFD target
2883 tc_gen_reloc (section
, fixp
)
2888 struct hppa_fix_struct
*hppa_fixp
;
2889 bfd_reloc_code_real_type code
;
2890 static arelent
*no_relocs
= NULL
;
2892 bfd_reloc_code_real_type
**codes
;
2896 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
2897 if (fixp
->fx_addsy
== 0)
2899 assert (hppa_fixp
!= 0);
2900 assert (section
!= 0);
2902 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
2904 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2905 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2906 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
2908 hppa_fixp
->fx_r_format
,
2909 hppa_fixp
->fx_r_field
,
2910 fixp
->fx_subsy
!= NULL
,
2911 symbol_get_bfdsym (fixp
->fx_addsy
));
2916 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
2919 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
2920 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
2921 for (i
= 0; i
< n_relocs
; i
++)
2922 relocs
[i
] = &reloc
[i
];
2924 relocs
[n_relocs
] = NULL
;
2927 switch (fixp
->fx_r_type
)
2930 assert (n_relocs
== 1);
2934 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2935 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2936 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2937 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2938 reloc
->addend
= 0; /* default */
2940 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
2942 /* Now, do any processing that is dependent on the relocation type. */
2945 case R_PARISC_DLTREL21L
:
2946 case R_PARISC_DLTREL14R
:
2947 case R_PARISC_DLTREL14F
:
2948 case R_PARISC_PLABEL32
:
2949 case R_PARISC_PLABEL21L
:
2950 case R_PARISC_PLABEL14R
:
2951 /* For plabel relocations, the addend of the
2952 relocation should be either 0 (no static link) or 2
2953 (static link required).
2955 FIXME: We always assume no static link!
2957 We also slam a zero addend into the DLT relative relocs;
2958 it doesn't make a lot of sense to use any addend since
2959 it gets you a different (eg unknown) DLT entry. */
2963 case R_PARISC_PCREL21L
:
2964 case R_PARISC_PCREL17R
:
2965 case R_PARISC_PCREL17F
:
2966 case R_PARISC_PCREL17C
:
2967 case R_PARISC_PCREL14R
:
2968 case R_PARISC_PCREL14F
:
2969 /* The constant is stored in the instruction. */
2970 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
2973 reloc
->addend
= fixp
->fx_offset
;
2980 /* Walk over reach relocation returned by the BFD backend. */
2981 for (i
= 0; i
< n_relocs
; i
++)
2985 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2986 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2987 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2988 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2993 /* The only time we ever use a R_COMP2 fixup is for the difference
2994 of two symbols. With that in mind we fill in all four
2995 relocs now and break out of the loop. */
2997 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
2998 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
2999 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3000 relocs
[0]->addend
= 0;
3001 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3002 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3003 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
3004 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3005 relocs
[1]->addend
= 0;
3006 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3007 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3008 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3009 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3010 relocs
[2]->addend
= 0;
3011 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3012 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3013 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3014 relocs
[3]->addend
= 0;
3015 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3016 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3017 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3018 relocs
[4]->addend
= 0;
3022 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3028 /* For plabel relocations, the addend of the
3029 relocation should be either 0 (no static link) or 2
3030 (static link required).
3032 FIXME: We always assume no static link!
3034 We also slam a zero addend into the DLT relative relocs;
3035 it doesn't make a lot of sense to use any addend since
3036 it gets you a different (eg unknown) DLT entry. */
3037 relocs
[i
]->addend
= 0;
3052 /* There is no symbol or addend associated with these fixups. */
3053 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3054 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3055 relocs
[i
]->addend
= 0;
3061 /* There is no symbol associated with these fixups. */
3062 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3063 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3064 relocs
[i
]->addend
= fixp
->fx_offset
;
3068 relocs
[i
]->addend
= fixp
->fx_offset
;
3078 /* Process any machine dependent frag types. */
3081 md_convert_frag (abfd
, sec
, fragP
)
3083 register asection
*sec
;
3084 register fragS
*fragP
;
3086 unsigned int address
;
3088 if (fragP
->fr_type
== rs_machine_dependent
)
3090 switch ((int) fragP
->fr_subtype
)
3093 fragP
->fr_type
= rs_fill
;
3094 know (fragP
->fr_var
== 1);
3095 know (fragP
->fr_next
);
3096 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3097 if (address
% fragP
->fr_offset
)
3100 fragP
->fr_next
->fr_address
3105 fragP
->fr_offset
= 0;
3111 /* Round up a section size to the appropriate boundary. */
3114 md_section_align (segment
, size
)
3118 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3119 int align2
= (1 << align
) - 1;
3121 return (size
+ align2
) & ~align2
;
3124 /* Return the approximate size of a frag before relaxation has occurred. */
3126 md_estimate_size_before_relax (fragP
, segment
)
3127 register fragS
*fragP
;
3134 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3140 CONST
char *md_shortopts
= "";
3141 struct option md_longopts
[] = {
3142 {NULL
, no_argument
, NULL
, 0}
3144 size_t md_longopts_size
= sizeof(md_longopts
);
3147 md_parse_option (c
, arg
)
3155 md_show_usage (stream
)
3160 /* We have no need to default values of symbols. */
3163 md_undefined_symbol (name
)
3169 /* Apply a fixup to an instruction. */
3172 md_apply_fix (fixP
, valp
)
3176 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3177 struct hppa_fix_struct
*hppa_fixP
;
3178 long new_val
, result
= 0;
3179 unsigned int w1
, w2
, w
, resulti
;
3181 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3182 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3183 never be "applied" (they are just markers). Likewise for
3184 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3186 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3187 || fixP
->fx_r_type
== R_HPPA_EXIT
3188 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3189 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3190 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3193 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3194 fixups are considered not adjustable, which in turn causes
3195 adjust_reloc_syms to not set fx_offset. Ugh. */
3196 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3198 fixP
->fx_offset
= *valp
;
3203 /* There should have been an HPPA specific fixup associated
3204 with the GAS fixup. */
3207 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3208 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3210 /* If there is a symbol associated with this fixup, then it's something
3211 which will need a SOM relocation (except for some PC-relative relocs).
3212 In such cases we should treat the "val" or "addend" as zero since it
3213 will be added in as needed from fx_offset in tc_gen_reloc. */
3214 if ((fixP
->fx_addsy
!= NULL
3215 || fixP
->fx_r_type
== R_HPPA_NONE
)
3220 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3222 /* These field selectors imply that we do not want an addend. */
3223 else if (hppa_fixP
->fx_r_field
== e_psel
3224 || hppa_fixP
->fx_r_field
== e_rpsel
3225 || hppa_fixP
->fx_r_field
== e_lpsel
3226 || hppa_fixP
->fx_r_field
== e_tsel
3227 || hppa_fixP
->fx_r_field
== e_rtsel
3228 || hppa_fixP
->fx_r_field
== e_ltsel
)
3229 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3230 /* This is truely disgusting. The machine independent code blindly
3231 adds in the value of the symbol being relocated against. Damn! */
3233 && fixP
->fx_addsy
!= NULL
3234 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3235 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3236 0, hppa_fixP
->fx_r_field
);
3239 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3241 /* Handle pc-relative exceptions from above. */
3242 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3243 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3244 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3248 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3249 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3250 hppa_fixP
->fx_arg_reloc
)
3252 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3253 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3255 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3257 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3258 #undef arg_reloc_stub_needed
3262 /* Handle all opcodes with the 'j' operand type. */
3264 CHECK_FIELD (new_val
, 8191, -8192, 0);
3266 /* Mask off 14 bits to be changed. */
3267 bfd_put_32 (stdoutput
,
3268 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3270 low_sign_unext (new_val
, 14, &resulti
);
3274 /* Handle all opcodes with the 'k' operand type. */
3276 CHECK_FIELD (new_val
, 2097152, 0, 0);
3278 /* Mask off 21 bits to be changed. */
3279 bfd_put_32 (stdoutput
,
3280 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3282 dis_assemble_21 (new_val
, &resulti
);
3286 /* Handle all the opcodes with the 'i' operand type. */
3288 CHECK_FIELD (new_val
, 1023, -1023, 0);
3290 /* Mask off 11 bits to be changed. */
3291 bfd_put_32 (stdoutput
,
3292 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3294 low_sign_unext (new_val
, 11, &resulti
);
3298 /* Handle all the opcodes with the 'w' operand type. */
3300 CHECK_FIELD (new_val
, 8199, -8184, 0);
3302 /* Mask off 11 bits to be changed. */
3303 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3304 bfd_put_32 (stdoutput
,
3305 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3308 dis_assemble_12 (resulti
, &w1
, &w
);
3309 result
= ((w1
<< 2) | w
);
3312 /* Handle some of the opcodes with the 'W' operand type. */
3315 int distance
= *valp
;
3317 CHECK_FIELD (new_val
, 262143, -262144, 0);
3319 /* If this is an absolute branch (ie no link) with an out of
3320 range target, then we want to complain. */
3321 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3322 && (distance
> 262143 || distance
< -262144)
3323 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3324 CHECK_FIELD (distance
, 262143, -262144, 0);
3326 /* Mask off 17 bits to be changed. */
3327 bfd_put_32 (stdoutput
,
3328 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3330 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3331 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3332 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3338 bfd_put_32 (stdoutput
, new_val
, buf
);
3342 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3346 /* Insert the relocation. */
3347 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3352 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3353 (unsigned int) fixP
, fixP
->fx_r_type
);
3358 /* Exactly what point is a PC-relative offset relative TO?
3359 On the PA, they're relative to the address of the offset. */
3362 md_pcrel_from (fixP
)
3365 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3368 /* Return nonzero if the input line pointer is at the end of
3372 is_end_of_statement ()
3374 return ((*input_line_pointer
== '\n')
3375 || (*input_line_pointer
== ';')
3376 || (*input_line_pointer
== '!'));
3379 /* Read a number from S. The number might come in one of many forms,
3380 the most common will be a hex or decimal constant, but it could be
3381 a pre-defined register (Yuk!), or an absolute symbol.
3383 Return a number or -1 for failure.
3385 When parsing PA-89 FP register numbers RESULT will be
3386 the address of a structure to return information about
3387 L/R half of FP registers, store results there as appropriate.
3389 pa_parse_number can not handle negative constants and will fail
3390 horribly if it is passed such a constant. */
3393 pa_parse_number (s
, result
)
3395 struct pa_11_fp_reg_struct
*result
;
3404 /* Skip whitespace before the number. */
3405 while (*p
== ' ' || *p
== '\t')
3408 /* Store info in RESULT if requested by caller. */
3411 result
->number_part
= -1;
3412 result
->l_r_select
= -1;
3418 /* Looks like a number. */
3421 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3423 /* The number is specified in hex. */
3425 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3426 || ((*p
>= 'A') && (*p
<= 'F')))
3429 num
= num
* 16 + *p
- '0';
3430 else if (*p
>= 'a' && *p
<= 'f')
3431 num
= num
* 16 + *p
- 'a' + 10;
3433 num
= num
* 16 + *p
- 'A' + 10;
3439 /* The number is specified in decimal. */
3440 while (isdigit (*p
))
3442 num
= num
* 10 + *p
- '0';
3447 /* Store info in RESULT if requested by the caller. */
3450 result
->number_part
= num
;
3452 if (IS_R_SELECT (p
))
3454 result
->l_r_select
= 1;
3457 else if (IS_L_SELECT (p
))
3459 result
->l_r_select
= 0;
3463 result
->l_r_select
= 0;
3468 /* The number might be a predefined register. */
3473 /* Tege hack: Special case for general registers as the general
3474 code makes a binary search with case translation, and is VERY
3479 if (*p
== 'e' && *(p
+ 1) == 't'
3480 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3483 num
= *p
- '0' + 28;
3491 else if (!isdigit (*p
))
3494 as_bad (_("Undefined register: '%s'."), name
);
3500 num
= num
* 10 + *p
++ - '0';
3501 while (isdigit (*p
));
3506 /* Do a normal register search. */
3507 while (is_part_of_name (c
))
3513 status
= reg_name_search (name
);
3519 as_bad (_("Undefined register: '%s'."), name
);
3525 /* Store info in RESULT if requested by caller. */
3528 result
->number_part
= num
;
3529 if (IS_R_SELECT (p
- 1))
3530 result
->l_r_select
= 1;
3531 else if (IS_L_SELECT (p
- 1))
3532 result
->l_r_select
= 0;
3534 result
->l_r_select
= 0;
3539 /* And finally, it could be a symbol in the absolute section which
3540 is effectively a constant. */
3544 while (is_part_of_name (c
))
3550 if ((sym
= symbol_find (name
)) != NULL
)
3552 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3553 num
= S_GET_VALUE (sym
);
3557 as_bad (_("Non-absolute symbol: '%s'."), name
);
3563 /* There is where we'd come for an undefined symbol
3564 or for an empty string. For an empty string we
3565 will return zero. That's a concession made for
3566 compatability with the braindamaged HP assemblers. */
3572 as_bad (_("Undefined absolute constant: '%s'."), name
);
3578 /* Store info in RESULT if requested by caller. */
3581 result
->number_part
= num
;
3582 if (IS_R_SELECT (p
- 1))
3583 result
->l_r_select
= 1;
3584 else if (IS_L_SELECT (p
- 1))
3585 result
->l_r_select
= 0;
3587 result
->l_r_select
= 0;
3595 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3597 /* Given NAME, find the register number associated with that name, return
3598 the integer value associated with the given name or -1 on failure. */
3601 reg_name_search (name
)
3604 int middle
, low
, high
;
3608 high
= REG_NAME_CNT
- 1;
3612 middle
= (low
+ high
) / 2;
3613 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
3619 return pre_defined_registers
[middle
].value
;
3621 while (low
<= high
);
3627 /* Return nonzero if the given INSN and L/R information will require
3628 a new PA-1.1 opcode. */
3631 need_pa11_opcode (insn
, result
)
3633 struct pa_11_fp_reg_struct
*result
;
3635 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
3637 /* If this instruction is specific to a particular architecture,
3638 then set a new architecture. */
3639 if (bfd_get_mach (stdoutput
) < pa11
)
3641 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
3642 as_warn (_("could not update architecture and machine"));
3650 /* Parse a condition for a fcmp instruction. Return the numerical
3651 code associated with the condition. */
3654 pa_parse_fp_cmp_cond (s
)
3661 for (i
= 0; i
< 32; i
++)
3663 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
3664 strlen (fp_cond_map
[i
].string
)) == 0)
3666 cond
= fp_cond_map
[i
].cond
;
3667 *s
+= strlen (fp_cond_map
[i
].string
);
3668 /* If not a complete match, back up the input string and
3670 if (**s
!= ' ' && **s
!= '\t')
3672 *s
-= strlen (fp_cond_map
[i
].string
);
3675 while (**s
== ' ' || **s
== '\t')
3681 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
3683 /* Advance over the bogus completer. */
3684 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3691 /* Parse an FP operand format completer returning the completer
3694 static fp_operand_format
3695 pa_parse_fp_format (s
)
3704 if (strncasecmp (*s
, "sgl", 3) == 0)
3709 else if (strncasecmp (*s
, "dbl", 3) == 0)
3714 else if (strncasecmp (*s
, "quad", 4) == 0)
3721 format
= ILLEGAL_FMT
;
3722 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
3729 /* Convert from a selector string into a selector type. */
3732 pa_chk_field_selector (str
)
3735 int middle
, low
, high
;
3739 /* Read past any whitespace. */
3740 /* FIXME: should we read past newlines and formfeeds??? */
3741 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
3744 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
3745 name
[0] = tolower ((*str
)[0]),
3747 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
3748 name
[0] = tolower ((*str
)[0]),
3749 name
[1] = tolower ((*str
)[1]),
3751 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
3752 name
[0] = tolower ((*str
)[0]),
3753 name
[1] = tolower ((*str
)[1]),
3754 name
[2] = tolower ((*str
)[2]),
3760 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
3764 middle
= (low
+ high
) / 2;
3765 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
3772 *str
+= strlen (name
) + 1;
3774 if (selector_table
[middle
].field_selector
== e_nsel
)
3777 return selector_table
[middle
].field_selector
;
3780 while (low
<= high
);
3785 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
3788 get_expression (str
)
3794 save_in
= input_line_pointer
;
3795 input_line_pointer
= str
;
3796 seg
= expression (&the_insn
.exp
);
3797 if (!(seg
== absolute_section
3798 || seg
== undefined_section
3799 || SEG_NORMAL (seg
)))
3801 as_warn (_("Bad segment in expression."));
3802 expr_end
= input_line_pointer
;
3803 input_line_pointer
= save_in
;
3806 expr_end
= input_line_pointer
;
3807 input_line_pointer
= save_in
;
3811 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
3813 pa_get_absolute_expression (insn
, strp
)
3819 insn
->field_selector
= pa_chk_field_selector (strp
);
3820 save_in
= input_line_pointer
;
3821 input_line_pointer
= *strp
;
3822 expression (&insn
->exp
);
3823 /* This is not perfect, but is a huge improvement over doing nothing.
3825 The PA assembly syntax is ambigious in a variety of ways. Consider
3826 this string "4 %r5" Is that the number 4 followed by the register
3827 r5, or is that 4 MOD 5?
3829 If we get a modulo expresion When looking for an absolute, we try
3830 again cutting off the input string at the first whitespace character. */
3831 if (insn
->exp
.X_op
== O_modulus
)
3836 input_line_pointer
= *strp
;
3838 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
3844 retval
= pa_get_absolute_expression (insn
, strp
);
3846 input_line_pointer
= save_in
;
3848 return evaluate_absolute (insn
);
3850 if (insn
->exp
.X_op
!= O_constant
)
3852 as_bad (_("Bad segment (should be absolute)."));
3853 expr_end
= input_line_pointer
;
3854 input_line_pointer
= save_in
;
3857 expr_end
= input_line_pointer
;
3858 input_line_pointer
= save_in
;
3859 return evaluate_absolute (insn
);
3862 /* Evaluate an absolute expression EXP which may be modified by
3863 the selector FIELD_SELECTOR. Return the value of the expression. */
3865 evaluate_absolute (insn
)
3870 int field_selector
= insn
->field_selector
;
3873 value
= exp
.X_add_number
;
3875 switch (field_selector
)
3881 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3883 if (value
& 0x00000400)
3885 value
= (value
& 0xfffff800) >> 11;
3888 /* Sign extend from bit 21. */
3890 if (value
& 0x00000400)
3891 value
|= 0xfffff800;
3896 /* Arithmetic shift right 11 bits. */
3898 value
= (value
& 0xfffff800) >> 11;
3901 /* Set bits 0-20 to zero. */
3903 value
= value
& 0x7ff;
3906 /* Add 0x800 and arithmetic shift right 11 bits. */
3909 value
= (value
& 0xfffff800) >> 11;
3912 /* Set bitgs 0-21 to one. */
3914 value
|= 0xfffff800;
3917 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
3919 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
3923 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
3928 BAD_CASE (field_selector
);
3934 /* Given an argument location specification return the associated
3935 argument location number. */
3938 pa_build_arg_reloc (type_name
)
3942 if (strncasecmp (type_name
, "no", 2) == 0)
3944 if (strncasecmp (type_name
, "gr", 2) == 0)
3946 else if (strncasecmp (type_name
, "fr", 2) == 0)
3948 else if (strncasecmp (type_name
, "fu", 2) == 0)
3951 as_bad (_("Invalid argument location: %s\n"), type_name
);
3956 /* Encode and return an argument relocation specification for
3957 the given register in the location specified by arg_reloc. */
3960 pa_align_arg_reloc (reg
, arg_reloc
)
3962 unsigned int arg_reloc
;
3964 unsigned int new_reloc
;
3966 new_reloc
= arg_reloc
;
3982 as_bad (_("Invalid argument description: %d"), reg
);
3988 /* Parse a PA nullification completer (,n). Return nonzero if the
3989 completer was found; return zero if no completer was found. */
4001 if (strncasecmp (*s
, "n", 1) == 0)
4005 as_bad (_("Invalid Nullification: (%c)"), **s
);
4014 /* Parse a non-negated compare/subtract completer returning the
4015 number (for encoding in instrutions) of the given completer.
4017 ISBRANCH specifies whether or not this is parsing a condition
4018 completer for a branch (vs a nullification completer for a
4019 computational instruction. */
4022 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4027 char *name
= *s
+ 1;
4036 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4042 if (strcmp (name
, "=") == 0)
4046 else if (strcmp (name
, "<") == 0)
4050 else if (strcmp (name
, "<=") == 0)
4054 else if (strcmp (name
, "<<") == 0)
4058 else if (strcmp (name
, "<<=") == 0)
4062 else if (strcasecmp (name
, "sv") == 0)
4066 else if (strcasecmp (name
, "od") == 0)
4070 /* If we have something like addb,n then there is no condition
4072 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4084 /* Reset pointers if this was really a ,n for a branch instruction. */
4092 /* Parse a negated compare/subtract completer returning the
4093 number (for encoding in instrutions) of the given completer.
4095 ISBRANCH specifies whether or not this is parsing a condition
4096 completer for a branch (vs a nullification completer for a
4097 computational instruction. */
4100 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4105 char *name
= *s
+ 1;
4114 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4120 if (strcasecmp (name
, "tr") == 0)
4124 else if (strcmp (name
, "<>") == 0)
4128 else if (strcmp (name
, ">=") == 0)
4132 else if (strcmp (name
, ">") == 0)
4136 else if (strcmp (name
, ">>=") == 0)
4140 else if (strcmp (name
, ">>") == 0)
4144 else if (strcasecmp (name
, "nsv") == 0)
4148 else if (strcasecmp (name
, "ev") == 0)
4152 /* If we have something like addb,n then there is no condition
4154 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4166 /* Reset pointers if this was really a ,n for a branch instruction. */
4175 /* Parse a non-negated addition completer returning the number
4176 (for encoding in instrutions) of the given completer.
4178 ISBRANCH specifies whether or not this is parsing a condition
4179 completer for a branch (vs a nullification completer for a
4180 computational instruction. */
4183 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4188 char *name
= *s
+ 1;
4196 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4200 if (strcmp (name
, "=") == 0)
4204 else if (strcmp (name
, "<") == 0)
4208 else if (strcmp (name
, "<=") == 0)
4212 else if (strcasecmp (name
, "nuv") == 0)
4216 else if (strcasecmp (name
, "znv") == 0)
4220 else if (strcasecmp (name
, "sv") == 0)
4224 else if (strcasecmp (name
, "od") == 0)
4228 /* If we have something like addb,n then there is no condition
4230 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4241 /* Reset pointers if this was really a ,n for a branch instruction. */
4242 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4248 /* Parse a negated addition completer returning the number
4249 (for encoding in instrutions) of the given completer.
4251 ISBRANCH specifies whether or not this is parsing a condition
4252 completer for a branch (vs a nullification completer for a
4253 computational instruction). */
4256 pa_parse_neg_add_cmpltr (s
, isbranch
)
4261 char *name
= *s
+ 1;
4269 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4273 if (strcasecmp (name
, "tr") == 0)
4277 else if (strcmp (name
, "<>") == 0)
4281 else if (strcmp (name
, ">=") == 0)
4285 else if (strcmp (name
, ">") == 0)
4289 else if (strcasecmp (name
, "uv") == 0)
4293 else if (strcasecmp (name
, "vnz") == 0)
4297 else if (strcasecmp (name
, "nsv") == 0)
4301 else if (strcasecmp (name
, "ev") == 0)
4305 /* If we have something like addb,n then there is no condition
4307 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4318 /* Reset pointers if this was really a ,n for a branch instruction. */
4319 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4326 /* Handle an alignment directive. Special so that we can update the
4327 alignment of the subspace if necessary. */
4331 /* We must have a valid space and subspace. */
4332 pa_check_current_space_and_subspace ();
4334 /* Let the generic gas code do most of the work. */
4335 s_align_bytes (bytes
);
4337 /* If bytes is a power of 2, then update the current subspace's
4338 alignment if necessary. */
4339 if (log2 (bytes
) != -1)
4340 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4344 /* Handle a .BLOCK type pseudo-op. */
4352 unsigned int temp_size
;
4356 /* We must have a valid space and subspace. */
4357 pa_check_current_space_and_subspace ();
4360 temp_size
= get_absolute_expression ();
4362 /* Always fill with zeros, that's what the HP assembler does. */
4365 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4366 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4367 memset (p
, 0, temp_size
);
4369 /* Convert 2 bytes at a time. */
4371 for (i
= 0; i
< temp_size
; i
+= 2)
4373 md_number_to_chars (p
+ i
,
4375 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4378 pa_undefine_label ();
4379 demand_empty_rest_of_line ();
4382 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4390 /* The BRTAB relocations are only availble in SOM (to denote
4391 the beginning and end of branch tables). */
4392 char *where
= frag_more (0);
4394 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4395 NULL
, (offsetT
) 0, NULL
,
4396 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4397 e_fsel
, 0, 0, NULL
);
4400 demand_empty_rest_of_line ();
4403 /* Handle a .begin_try and .end_try pseudo-op. */
4411 char *where
= frag_more (0);
4416 /* The TRY relocations are only availble in SOM (to denote
4417 the beginning and end of exception handling regions). */
4419 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4420 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4421 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4422 e_fsel
, 0, 0, NULL
);
4425 demand_empty_rest_of_line ();
4428 /* Handle a .CALL pseudo-op. This involves storing away information
4429 about where arguments are to be found so the linker can detect
4430 (and correct) argument location mismatches between caller and callee. */
4437 /* We must have a valid space and subspace. */
4438 pa_check_current_space_and_subspace ();
4441 pa_call_args (&last_call_desc
);
4442 demand_empty_rest_of_line ();
4445 /* Do the dirty work of building a call descriptor which describes
4446 where the caller placed arguments to a function call. */
4449 pa_call_args (call_desc
)
4450 struct call_desc
*call_desc
;
4453 unsigned int temp
, arg_reloc
;
4455 while (!is_end_of_statement ())
4457 name
= input_line_pointer
;
4458 c
= get_symbol_end ();
4459 /* Process a source argument. */
4460 if ((strncasecmp (name
, "argw", 4) == 0))
4462 temp
= atoi (name
+ 4);
4463 p
= input_line_pointer
;
4465 input_line_pointer
++;
4466 name
= input_line_pointer
;
4467 c
= get_symbol_end ();
4468 arg_reloc
= pa_build_arg_reloc (name
);
4469 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4471 /* Process a return value. */
4472 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4474 p
= input_line_pointer
;
4476 input_line_pointer
++;
4477 name
= input_line_pointer
;
4478 c
= get_symbol_end ();
4479 arg_reloc
= pa_build_arg_reloc (name
);
4480 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4484 as_bad (_("Invalid .CALL argument: %s"), name
);
4486 p
= input_line_pointer
;
4488 if (!is_end_of_statement ())
4489 input_line_pointer
++;
4493 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4496 is_same_frag (frag1
, frag2
)
4503 else if (frag2
== NULL
)
4505 else if (frag1
== frag2
)
4507 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4508 return (is_same_frag (frag1
, frag2
->fr_next
));
4514 /* Build an entry in the UNWIND subspace from the given function
4515 attributes in CALL_INFO. This is not needed for SOM as using
4516 R_ENTRY and R_EXIT relocations allow the linker to handle building
4517 of the unwind spaces. */
4520 pa_build_unwind_subspace (call_info
)
4521 struct call_info
*call_info
;
4524 asection
*seg
, *save_seg
;
4526 subsegT subseg
, save_subseg
;
4530 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
4531 reloc
= R_PARISC_DIR32
;
4533 reloc
= R_PARISC_SEGREL32
;
4535 /* Get into the right seg/subseg. This may involve creating
4536 the seg the first time through. Make sure to have the
4537 old seg/subseg so that we can reset things when we are done. */
4538 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4539 if (seg
== ASEC_NULL
)
4541 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4542 bfd_set_section_flags (stdoutput
, seg
,
4543 SEC_READONLY
| SEC_HAS_CONTENTS
4544 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
4545 bfd_set_section_alignment (stdoutput
, seg
, 2);
4549 save_subseg
= now_subseg
;
4550 subseg_set (seg
, 0);
4553 /* Get some space to hold relocation information for the unwind
4556 md_number_to_chars (p
, 0, 4);
4558 /* Relocation info. for start offset of the function. */
4559 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4560 call_info
->start_symbol
, (offsetT
) 0,
4561 (expressionS
*) NULL
, 0, reloc
,
4562 e_fsel
, 32, 0, NULL
);
4565 md_number_to_chars (p
, 0, 4);
4567 /* Relocation info. for end offset of the function.
4569 Because we allow reductions of 32bit relocations for ELF, this will be
4570 reduced to section_sym + offset which avoids putting the temporary
4571 symbol into the symbol table. It (should) end up giving the same
4572 value as call_info->start_symbol + function size once the linker is
4573 finished with its work. */
4575 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4576 call_info
->end_symbol
, (offsetT
) 0,
4577 (expressionS
*) NULL
, 0, reloc
,
4578 e_fsel
, 32, 0, NULL
);
4581 unwind
= (char *) &call_info
->ci_unwind
;
4582 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4586 FRAG_APPEND_1_CHAR (c
);
4590 /* Return back to the original segment/subsegment. */
4591 subseg_set (save_seg
, save_subseg
);
4595 /* Process a .CALLINFO pseudo-op. This information is used later
4596 to build unwind descriptors and maybe one day to support
4597 .ENTER and .LEAVE. */
4600 pa_callinfo (unused
)
4607 /* We must have a valid space and subspace. */
4608 pa_check_current_space_and_subspace ();
4611 /* .CALLINFO must appear within a procedure definition. */
4612 if (!within_procedure
)
4613 as_bad (_(".callinfo is not within a procedure definition"));
4615 /* Mark the fact that we found the .CALLINFO for the
4616 current procedure. */
4617 callinfo_found
= TRUE
;
4619 /* Iterate over the .CALLINFO arguments. */
4620 while (!is_end_of_statement ())
4622 name
= input_line_pointer
;
4623 c
= get_symbol_end ();
4624 /* Frame size specification. */
4625 if ((strncasecmp (name
, "frame", 5) == 0))
4627 p
= input_line_pointer
;
4629 input_line_pointer
++;
4630 temp
= get_absolute_expression ();
4631 if ((temp
& 0x3) != 0)
4633 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
4637 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
4638 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
4641 /* Entry register (GR, GR and SR) specifications. */
4642 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
4644 p
= input_line_pointer
;
4646 input_line_pointer
++;
4647 temp
= get_absolute_expression ();
4648 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4649 even though %r19 is caller saved. I think this is a bug in
4650 the HP assembler, and we are not going to emulate it. */
4651 if (temp
< 3 || temp
> 18)
4652 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
4653 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
4655 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
4657 p
= input_line_pointer
;
4659 input_line_pointer
++;
4660 temp
= get_absolute_expression ();
4661 /* Similarly the HP assembler takes 31 as the high bound even
4662 though %fr21 is the last callee saved floating point register. */
4663 if (temp
< 12 || temp
> 21)
4664 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
4665 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
4667 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
4669 p
= input_line_pointer
;
4671 input_line_pointer
++;
4672 temp
= get_absolute_expression ();
4674 as_bad (_("Value for ENTRY_SR must be 3\n"));
4676 /* Note whether or not this function performs any calls. */
4677 else if ((strncasecmp (name
, "calls", 5) == 0) ||
4678 (strncasecmp (name
, "caller", 6) == 0))
4680 p
= input_line_pointer
;
4683 else if ((strncasecmp (name
, "no_calls", 8) == 0))
4685 p
= input_line_pointer
;
4688 /* Should RP be saved into the stack. */
4689 else if ((strncasecmp (name
, "save_rp", 7) == 0))
4691 p
= input_line_pointer
;
4693 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
4695 /* Likewise for SP. */
4696 else if ((strncasecmp (name
, "save_sp", 7) == 0))
4698 p
= input_line_pointer
;
4700 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
4702 /* Is this an unwindable procedure. If so mark it so
4703 in the unwind descriptor. */
4704 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
4706 p
= input_line_pointer
;
4708 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
4710 /* Is this an interrupt routine. If so mark it in the
4711 unwind descriptor. */
4712 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
4714 p
= input_line_pointer
;
4716 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
4718 /* Is this a millicode routine. "millicode" isn't in my
4719 assembler manual, but my copy is old. The HP assembler
4720 accepts it, and there's a place in the unwind descriptor
4721 to drop the information, so we'll accept it too. */
4722 else if ((strncasecmp (name
, "millicode", 9) == 0))
4724 p
= input_line_pointer
;
4726 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
4730 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
4731 *input_line_pointer
= c
;
4733 if (!is_end_of_statement ())
4734 input_line_pointer
++;
4737 demand_empty_rest_of_line ();
4740 /* Switch into the code subspace. */
4747 current_space
= is_defined_space ("$TEXT$");
4749 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
4752 pa_undefine_label ();
4755 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4756 the .comm pseudo-op has the following symtax:
4758 <label> .comm <length>
4760 where <label> is optional and is a symbol whose address will be the start of
4761 a block of memory <length> bytes long. <length> must be an absolute
4762 expression. <length> bytes will be allocated in the current space
4765 Also note the label may not even be on the same line as the .comm.
4767 This difference in syntax means the colon function will be called
4768 on the symbol before we arrive in pa_comm. colon will set a number
4769 of attributes of the symbol that need to be fixed here. In particular
4770 the value, section pointer, fragment pointer, flags, etc. What
4773 This also makes error detection all but impossible. */
4781 label_symbol_struct
*label_symbol
= pa_get_label ();
4784 symbol
= label_symbol
->lss_label
;
4789 size
= get_absolute_expression ();
4793 S_SET_VALUE (symbol
, size
);
4794 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
4795 S_SET_EXTERNAL (symbol
);
4797 /* colon() has already set the frag to the current location in the
4798 current subspace; we need to reset the fragment to the zero address
4799 fragment. We also need to reset the segment pointer. */
4800 symbol_set_frag (symbol
, &zero_address_frag
);
4802 demand_empty_rest_of_line ();
4805 /* Process a .END pseudo-op. */
4811 demand_empty_rest_of_line ();
4814 /* Process a .ENTER pseudo-op. This is not supported. */
4820 /* We must have a valid space and subspace. */
4821 pa_check_current_space_and_subspace ();
4824 as_bad (_("The .ENTER pseudo-op is not supported"));
4825 demand_empty_rest_of_line ();
4828 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4835 /* We must have a valid space and subspace. */
4836 pa_check_current_space_and_subspace ();
4839 if (!within_procedure
)
4840 as_bad (_("Misplaced .entry. Ignored."));
4843 if (!callinfo_found
)
4844 as_bad (_("Missing .callinfo."));
4846 demand_empty_rest_of_line ();
4847 within_entry_exit
= TRUE
;
4850 /* SOM defers building of unwind descriptors until the link phase.
4851 The assembler is responsible for creating an R_ENTRY relocation
4852 to mark the beginning of a region and hold the unwind bits, and
4853 for creating an R_EXIT relocation to mark the end of the region.
4855 FIXME. ELF should be using the same conventions! The problem
4856 is an unwind requires too much relocation space. Hmmm. Maybe
4857 if we split the unwind bits up between the relocations which
4858 denote the entry and exit points. */
4859 if (last_call_info
->start_symbol
!= NULL
)
4861 char *where
= frag_more (0);
4863 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4864 NULL
, (offsetT
) 0, NULL
,
4865 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
4866 (int *) &last_call_info
->ci_unwind
.descriptor
);
4871 /* Handle a .EQU pseudo-op. */
4877 label_symbol_struct
*label_symbol
= pa_get_label ();
4882 symbol
= label_symbol
->lss_label
;
4884 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
4886 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
4887 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
4892 as_bad (_(".REG must use a label"));
4894 as_bad (_(".EQU must use a label"));
4897 pa_undefine_label ();
4898 demand_empty_rest_of_line ();
4901 /* Helper function. Does processing for the end of a function. This
4902 usually involves creating some relocations or building special
4903 symbols to mark the end of the function. */
4910 where
= frag_more (0);
4913 /* Mark the end of the function, stuff away the location of the frag
4914 for the end of the function, and finally call pa_build_unwind_subspace
4915 to add an entry in the unwind table. */
4916 hppa_elf_mark_end_of_function ();
4917 pa_build_unwind_subspace (last_call_info
);
4919 /* SOM defers building of unwind descriptors until the link phase.
4920 The assembler is responsible for creating an R_ENTRY relocation
4921 to mark the beginning of a region and hold the unwind bits, and
4922 for creating an R_EXIT relocation to mark the end of the region.
4924 FIXME. ELF should be using the same conventions! The problem
4925 is an unwind requires too much relocation space. Hmmm. Maybe
4926 if we split the unwind bits up between the relocations which
4927 denote the entry and exit points. */
4928 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4930 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
4931 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
4935 /* Process a .EXIT pseudo-op. */
4942 /* We must have a valid space and subspace. */
4943 pa_check_current_space_and_subspace ();
4946 if (!within_procedure
)
4947 as_bad (_(".EXIT must appear within a procedure"));
4950 if (!callinfo_found
)
4951 as_bad (_("Missing .callinfo"));
4954 if (!within_entry_exit
)
4955 as_bad (_("No .ENTRY for this .EXIT"));
4958 within_entry_exit
= FALSE
;
4963 demand_empty_rest_of_line ();
4966 /* Process a .EXPORT directive. This makes functions external
4967 and provides information such as argument relocation entries
4977 name
= input_line_pointer
;
4978 c
= get_symbol_end ();
4979 /* Make sure the given symbol exists. */
4980 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
4982 as_bad (_("Cannot define export symbol: %s\n"), name
);
4983 p
= input_line_pointer
;
4985 input_line_pointer
++;
4989 /* OK. Set the external bits and process argument relocations. */
4990 S_SET_EXTERNAL (symbol
);
4991 p
= input_line_pointer
;
4993 if (!is_end_of_statement ())
4995 input_line_pointer
++;
4996 pa_type_args (symbol
, 1);
5000 demand_empty_rest_of_line ();
5003 /* Helper function to process arguments to a .EXPORT pseudo-op. */
5006 pa_type_args (symbolP
, is_export
)
5011 unsigned int temp
, arg_reloc
;
5012 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5013 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5015 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5018 input_line_pointer
+= 8;
5019 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5020 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5021 type
= SYMBOL_TYPE_ABSOLUTE
;
5023 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5025 input_line_pointer
+= 4;
5026 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5027 instead one should be IMPORTing/EXPORTing ENTRY types.
5029 Complain if one tries to EXPORT a CODE type since that's never
5030 done. Both GCC and HP C still try to IMPORT CODE types, so
5031 silently fix them to be ENTRY types. */
5032 if (S_IS_FUNCTION (symbolP
))
5035 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5036 S_GET_NAME (symbolP
));
5038 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5039 type
= SYMBOL_TYPE_ENTRY
;
5043 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5044 type
= SYMBOL_TYPE_CODE
;
5047 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5049 input_line_pointer
+= 4;
5050 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5051 type
= SYMBOL_TYPE_DATA
;
5053 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5055 input_line_pointer
+= 5;
5056 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5057 type
= SYMBOL_TYPE_ENTRY
;
5059 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5061 input_line_pointer
+= 9;
5062 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5063 type
= SYMBOL_TYPE_MILLICODE
;
5065 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5067 input_line_pointer
+= 6;
5068 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5069 type
= SYMBOL_TYPE_PLABEL
;
5071 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5073 input_line_pointer
+= 8;
5074 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5075 type
= SYMBOL_TYPE_PRI_PROG
;
5077 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5079 input_line_pointer
+= 8;
5080 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5081 type
= SYMBOL_TYPE_SEC_PROG
;
5084 /* SOM requires much more information about symbol types
5085 than BFD understands. This is how we get this information
5086 to the SOM BFD backend. */
5087 #ifdef obj_set_symbol_type
5088 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5091 /* Now that the type of the exported symbol has been handled,
5092 handle any argument relocation information. */
5093 while (!is_end_of_statement ())
5095 if (*input_line_pointer
== ',')
5096 input_line_pointer
++;
5097 name
= input_line_pointer
;
5098 c
= get_symbol_end ();
5099 /* Argument sources. */
5100 if ((strncasecmp (name
, "argw", 4) == 0))
5102 p
= input_line_pointer
;
5104 input_line_pointer
++;
5105 temp
= atoi (name
+ 4);
5106 name
= input_line_pointer
;
5107 c
= get_symbol_end ();
5108 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5110 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5112 *input_line_pointer
= c
;
5114 /* The return value. */
5115 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5117 p
= input_line_pointer
;
5119 input_line_pointer
++;
5120 name
= input_line_pointer
;
5121 c
= get_symbol_end ();
5122 arg_reloc
= pa_build_arg_reloc (name
);
5124 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5126 *input_line_pointer
= c
;
5128 /* Privelege level. */
5129 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5131 p
= input_line_pointer
;
5133 input_line_pointer
++;
5134 temp
= atoi (input_line_pointer
);
5136 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5138 c
= get_symbol_end ();
5139 *input_line_pointer
= c
;
5143 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5144 p
= input_line_pointer
;
5147 if (!is_end_of_statement ())
5148 input_line_pointer
++;
5152 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5153 assembly file must either be defined in the assembly file, or
5154 explicitly IMPORTED from another. */
5163 name
= input_line_pointer
;
5164 c
= get_symbol_end ();
5166 symbol
= symbol_find (name
);
5167 /* Ugh. We might be importing a symbol defined earlier in the file,
5168 in which case all the code below will really screw things up
5169 (set the wrong segment, symbol flags & type, etc). */
5170 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5172 symbol
= symbol_find_or_make (name
);
5173 p
= input_line_pointer
;
5176 if (!is_end_of_statement ())
5178 input_line_pointer
++;
5179 pa_type_args (symbol
, 0);
5183 /* Sigh. To be compatable with the HP assembler and to help
5184 poorly written assembly code, we assign a type based on
5185 the the current segment. Note only BSF_FUNCTION really
5186 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5187 if (now_seg
== text_section
)
5188 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5190 /* If the section is undefined, then the symbol is undefined
5191 Since this is an import, leave the section undefined. */
5192 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5197 /* The symbol was already defined. Just eat everything up to
5198 the end of the current statement. */
5199 while (!is_end_of_statement ())
5200 input_line_pointer
++;
5203 demand_empty_rest_of_line ();
5206 /* Handle a .LABEL pseudo-op. */
5214 name
= input_line_pointer
;
5215 c
= get_symbol_end ();
5217 if (strlen (name
) > 0)
5220 p
= input_line_pointer
;
5225 as_warn (_("Missing label name on .LABEL"));
5228 if (!is_end_of_statement ())
5230 as_warn (_("extra .LABEL arguments ignored."));
5231 ignore_rest_of_line ();
5233 demand_empty_rest_of_line ();
5236 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5243 /* We must have a valid space and subspace. */
5244 pa_check_current_space_and_subspace ();
5247 as_bad (_("The .LEAVE pseudo-op is not supported"));
5248 demand_empty_rest_of_line ();
5251 /* Handle a .LEVEL pseudo-op. */
5259 level
= input_line_pointer
;
5260 if (strncmp (level
, "1.0", 3) == 0)
5262 input_line_pointer
+= 3;
5263 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5264 as_warn (_("could not set architecture and machine"));
5266 else if (strncmp (level
, "1.1", 3) == 0)
5268 input_line_pointer
+= 3;
5269 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5270 as_warn (_("could not set architecture and machine"));
5272 else if (strncmp (level
, "2.0w", 4) == 0)
5274 input_line_pointer
+= 4;
5275 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5276 as_warn (_("could not set architecture and machine"));
5278 else if (strncmp (level
, "2.0", 3) == 0)
5280 input_line_pointer
+= 3;
5281 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5282 as_warn (_("could not set architecture and machine"));
5286 as_bad (_("Unrecognized .LEVEL argument\n"));
5287 ignore_rest_of_line ();
5289 demand_empty_rest_of_line ();
5292 /* Handle a .ORIGIN pseudo-op. */
5299 /* We must have a valid space and subspace. */
5300 pa_check_current_space_and_subspace ();
5304 pa_undefine_label ();
5307 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5308 is for static functions. FIXME. Should share more code with .EXPORT. */
5317 name
= input_line_pointer
;
5318 c
= get_symbol_end ();
5320 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5322 as_bad (_("Cannot define static symbol: %s\n"), name
);
5323 p
= input_line_pointer
;
5325 input_line_pointer
++;
5329 S_CLEAR_EXTERNAL (symbol
);
5330 p
= input_line_pointer
;
5332 if (!is_end_of_statement ())
5334 input_line_pointer
++;
5335 pa_type_args (symbol
, 0);
5339 demand_empty_rest_of_line ();
5342 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5343 of a procedure from a syntatical point of view. */
5349 struct call_info
*call_info
;
5352 /* We must have a valid space and subspace. */
5353 pa_check_current_space_and_subspace ();
5356 if (within_procedure
)
5357 as_fatal (_("Nested procedures"));
5359 /* Reset global variables for new procedure. */
5360 callinfo_found
= FALSE
;
5361 within_procedure
= TRUE
;
5363 /* Create another call_info structure. */
5364 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5367 as_fatal (_("Cannot allocate unwind descriptor\n"));
5369 memset (call_info
, 0, sizeof (struct call_info
));
5371 call_info
->ci_next
= NULL
;
5373 if (call_info_root
== NULL
)
5375 call_info_root
= call_info
;
5376 last_call_info
= call_info
;
5380 last_call_info
->ci_next
= call_info
;
5381 last_call_info
= call_info
;
5384 /* set up defaults on call_info structure */
5386 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5387 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5388 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5390 /* If we got a .PROC pseudo-op, we know that the function is defined
5391 locally. Make sure it gets into the symbol table. */
5393 label_symbol_struct
*label_symbol
= pa_get_label ();
5397 if (label_symbol
->lss_label
)
5399 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5400 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5403 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5406 last_call_info
->start_symbol
= NULL
;
5409 demand_empty_rest_of_line ();
5412 /* Process the syntatical end of a procedure. Make sure all the
5413 appropriate pseudo-ops were found within the procedure. */
5421 /* We must have a valid space and subspace. */
5422 pa_check_current_space_and_subspace ();
5425 /* If we are within a procedure definition, make sure we've
5426 defined a label for the procedure; handle case where the
5427 label was defined after the .PROC directive.
5429 Note there's not need to diddle with the segment or fragment
5430 for the label symbol in this case. We have already switched
5431 into the new $CODE$ subspace at this point. */
5432 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5434 label_symbol_struct
*label_symbol
= pa_get_label ();
5438 if (label_symbol
->lss_label
)
5440 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5441 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5444 /* Also handle allocation of a fixup to hold the unwind
5445 information when the label appears after the proc/procend. */
5446 if (within_entry_exit
)
5448 char *where
= frag_more (0);
5450 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5451 NULL
, (offsetT
) 0, NULL
,
5452 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5453 (int *) &last_call_info
->ci_unwind
.descriptor
);
5458 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5461 as_bad (_("Missing function name for .PROC"));
5464 if (!within_procedure
)
5465 as_bad (_("misplaced .procend"));
5467 if (!callinfo_found
)
5468 as_bad (_("Missing .callinfo for this procedure"));
5470 if (within_entry_exit
)
5471 as_bad (_("Missing .EXIT for a .ENTRY"));
5474 /* ELF needs to mark the end of each function so that it can compute
5475 the size of the function (apparently its needed in the symbol table). */
5476 hppa_elf_mark_end_of_function ();
5479 within_procedure
= FALSE
;
5480 demand_empty_rest_of_line ();
5481 pa_undefine_label ();
5484 /* If VALUE is an exact power of two between zero and 2^31, then
5485 return log2 (VALUE). Else return -1. */
5493 while ((1 << shift
) != value
&& shift
< 32)
5504 /* Check to make sure we have a valid space and subspace. */
5507 pa_check_current_space_and_subspace ()
5509 if (current_space
== NULL
)
5510 as_fatal (_("Not in a space.\n"));
5512 if (current_subspace
== NULL
)
5513 as_fatal (_("Not in a subspace.\n"));
5516 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5517 then create a new space entry to hold the information specified
5518 by the parameters to the .SPACE directive. */
5520 static sd_chain_struct
*
5521 pa_parse_space_stmt (space_name
, create_flag
)
5525 char *name
, *ptemp
, c
;
5526 char loadable
, defined
, private, sort
;
5528 asection
*seg
= NULL
;
5529 sd_chain_struct
*space
;
5531 /* load default values */
5537 if (strcmp (space_name
, "$TEXT$") == 0)
5539 seg
= pa_def_spaces
[0].segment
;
5540 defined
= pa_def_spaces
[0].defined
;
5541 private = pa_def_spaces
[0].private;
5542 sort
= pa_def_spaces
[0].sort
;
5543 spnum
= pa_def_spaces
[0].spnum
;
5545 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5547 seg
= pa_def_spaces
[1].segment
;
5548 defined
= pa_def_spaces
[1].defined
;
5549 private = pa_def_spaces
[1].private;
5550 sort
= pa_def_spaces
[1].sort
;
5551 spnum
= pa_def_spaces
[1].spnum
;
5554 if (!is_end_of_statement ())
5556 print_errors
= FALSE
;
5557 ptemp
= input_line_pointer
+ 1;
5558 /* First see if the space was specified as a number rather than
5559 as a name. According to the PA assembly manual the rest of
5560 the line should be ignored. */
5561 temp
= pa_parse_number (&ptemp
, 0);
5565 input_line_pointer
= ptemp
;
5569 while (!is_end_of_statement ())
5571 input_line_pointer
++;
5572 name
= input_line_pointer
;
5573 c
= get_symbol_end ();
5574 if ((strncasecmp (name
, "spnum", 5) == 0))
5576 *input_line_pointer
= c
;
5577 input_line_pointer
++;
5578 spnum
= get_absolute_expression ();
5580 else if ((strncasecmp (name
, "sort", 4) == 0))
5582 *input_line_pointer
= c
;
5583 input_line_pointer
++;
5584 sort
= get_absolute_expression ();
5586 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5588 *input_line_pointer
= c
;
5591 else if ((strncasecmp (name
, "notdefined", 10) == 0))
5593 *input_line_pointer
= c
;
5596 else if ((strncasecmp (name
, "private", 7) == 0))
5598 *input_line_pointer
= c
;
5603 as_bad (_("Invalid .SPACE argument"));
5604 *input_line_pointer
= c
;
5605 if (!is_end_of_statement ())
5606 input_line_pointer
++;
5610 print_errors
= TRUE
;
5613 if (create_flag
&& seg
== NULL
)
5614 seg
= subseg_new (space_name
, 0);
5616 /* If create_flag is nonzero, then create the new space with
5617 the attributes computed above. Else set the values in
5618 an already existing space -- this can only happen for
5619 the first occurence of a built-in space. */
5621 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
5622 private, sort
, seg
, 1);
5625 space
= is_defined_space (space_name
);
5626 SPACE_SPNUM (space
) = spnum
;
5627 SPACE_DEFINED (space
) = defined
& 1;
5628 SPACE_USER_DEFINED (space
) = 1;
5631 #ifdef obj_set_section_attributes
5632 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
5638 /* Handle a .SPACE pseudo-op; this switches the current space to the
5639 given space, creating the new space if necessary. */
5645 char *name
, c
, *space_name
, *save_s
;
5647 sd_chain_struct
*sd_chain
;
5649 if (within_procedure
)
5651 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
5652 ignore_rest_of_line ();
5656 /* Check for some of the predefined spaces. FIXME: most of the code
5657 below is repeated several times, can we extract the common parts
5658 and place them into a subroutine or something similar? */
5659 /* FIXME Is this (and the next IF stmt) really right?
5660 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5661 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
5663 input_line_pointer
+= 6;
5664 sd_chain
= is_defined_space ("$TEXT$");
5665 if (sd_chain
== NULL
)
5666 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
5667 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5668 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
5670 current_space
= sd_chain
;
5671 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
5673 = pa_subsegment_to_subspace (text_section
,
5674 sd_chain
->sd_last_subseg
);
5675 demand_empty_rest_of_line ();
5678 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
5680 input_line_pointer
+= 9;
5681 sd_chain
= is_defined_space ("$PRIVATE$");
5682 if (sd_chain
== NULL
)
5683 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
5684 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5685 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
5687 current_space
= sd_chain
;
5688 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
5690 = pa_subsegment_to_subspace (data_section
,
5691 sd_chain
->sd_last_subseg
);
5692 demand_empty_rest_of_line ();
5695 if (!strncasecmp (input_line_pointer
,
5696 GDB_DEBUG_SPACE_NAME
,
5697 strlen (GDB_DEBUG_SPACE_NAME
)))
5699 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
5700 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
5701 if (sd_chain
== NULL
)
5702 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
5703 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5704 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
5706 current_space
= sd_chain
;
5709 asection
*gdb_section
5710 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
5712 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
5714 = pa_subsegment_to_subspace (gdb_section
,
5715 sd_chain
->sd_last_subseg
);
5717 demand_empty_rest_of_line ();
5721 /* It could be a space specified by number. */
5723 save_s
= input_line_pointer
;
5724 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
5726 if ((sd_chain
= pa_find_space_by_number (temp
)))
5728 current_space
= sd_chain
;
5730 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5732 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5733 sd_chain
->sd_last_subseg
);
5734 demand_empty_rest_of_line ();
5739 /* Not a number, attempt to create a new space. */
5741 input_line_pointer
= save_s
;
5742 name
= input_line_pointer
;
5743 c
= get_symbol_end ();
5744 space_name
= xmalloc (strlen (name
) + 1);
5745 strcpy (space_name
, name
);
5746 *input_line_pointer
= c
;
5748 sd_chain
= pa_parse_space_stmt (space_name
, 1);
5749 current_space
= sd_chain
;
5751 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5752 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5753 sd_chain
->sd_last_subseg
);
5754 demand_empty_rest_of_line ();
5758 /* Switch to a new space. (I think). FIXME. */
5767 sd_chain_struct
*space
;
5769 name
= input_line_pointer
;
5770 c
= get_symbol_end ();
5771 space
= is_defined_space (name
);
5775 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
5778 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
5780 *input_line_pointer
= c
;
5781 demand_empty_rest_of_line ();
5784 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
5785 given subspace, creating the new subspace if necessary.
5787 FIXME. Should mirror pa_space more closely, in particular how
5788 they're broken up into subroutines. */
5791 pa_subspace (create_new
)
5794 char *name
, *ss_name
, c
;
5795 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
5796 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
5797 sd_chain_struct
*space
;
5798 ssd_chain_struct
*ssd
;
5801 if (current_space
== NULL
)
5802 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
5804 if (within_procedure
)
5806 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
5807 ignore_rest_of_line ();
5811 name
= input_line_pointer
;
5812 c
= get_symbol_end ();
5813 ss_name
= xmalloc (strlen (name
) + 1);
5814 strcpy (ss_name
, name
);
5815 *input_line_pointer
= c
;
5817 /* Load default values. */
5829 space
= current_space
;
5833 ssd
= is_defined_subspace (ss_name
);
5834 /* Allow user to override the builtin attributes of subspaces. But
5835 only allow the attributes to be changed once! */
5836 if (ssd
&& SUBSPACE_DEFINED (ssd
))
5838 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
5839 current_subspace
= ssd
;
5840 if (!is_end_of_statement ())
5841 as_warn (_("Parameters of an existing subspace can\'t be modified"));
5842 demand_empty_rest_of_line ();
5847 /* A new subspace. Load default values if it matches one of
5848 the builtin subspaces. */
5850 while (pa_def_subspaces
[i
].name
)
5852 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
5854 loadable
= pa_def_subspaces
[i
].loadable
;
5855 common
= pa_def_subspaces
[i
].common
;
5856 dup_common
= pa_def_subspaces
[i
].dup_common
;
5857 code_only
= pa_def_subspaces
[i
].code_only
;
5858 zero
= pa_def_subspaces
[i
].zero
;
5859 space_index
= pa_def_subspaces
[i
].space_index
;
5860 alignment
= pa_def_subspaces
[i
].alignment
;
5861 quadrant
= pa_def_subspaces
[i
].quadrant
;
5862 access
= pa_def_subspaces
[i
].access
;
5863 sort
= pa_def_subspaces
[i
].sort
;
5870 /* We should be working with a new subspace now. Fill in
5871 any information as specified by the user. */
5872 if (!is_end_of_statement ())
5874 input_line_pointer
++;
5875 while (!is_end_of_statement ())
5877 name
= input_line_pointer
;
5878 c
= get_symbol_end ();
5879 if ((strncasecmp (name
, "quad", 4) == 0))
5881 *input_line_pointer
= c
;
5882 input_line_pointer
++;
5883 quadrant
= get_absolute_expression ();
5885 else if ((strncasecmp (name
, "align", 5) == 0))
5887 *input_line_pointer
= c
;
5888 input_line_pointer
++;
5889 alignment
= get_absolute_expression ();
5890 if (log2 (alignment
) == -1)
5892 as_bad (_("Alignment must be a power of 2"));
5896 else if ((strncasecmp (name
, "access", 6) == 0))
5898 *input_line_pointer
= c
;
5899 input_line_pointer
++;
5900 access
= get_absolute_expression ();
5902 else if ((strncasecmp (name
, "sort", 4) == 0))
5904 *input_line_pointer
= c
;
5905 input_line_pointer
++;
5906 sort
= get_absolute_expression ();
5908 else if ((strncasecmp (name
, "code_only", 9) == 0))
5910 *input_line_pointer
= c
;
5913 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5915 *input_line_pointer
= c
;
5918 else if ((strncasecmp (name
, "common", 6) == 0))
5920 *input_line_pointer
= c
;
5923 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
5925 *input_line_pointer
= c
;
5928 else if ((strncasecmp (name
, "zero", 4) == 0))
5930 *input_line_pointer
= c
;
5933 else if ((strncasecmp (name
, "first", 5) == 0))
5934 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
5936 as_bad (_("Invalid .SUBSPACE argument"));
5937 if (!is_end_of_statement ())
5938 input_line_pointer
++;
5942 /* Compute a reasonable set of BFD flags based on the information
5943 in the .subspace directive. */
5944 applicable
= bfd_applicable_section_flags (stdoutput
);
5947 flags
|= (SEC_ALLOC
| SEC_LOAD
);
5950 if (common
|| dup_common
)
5951 flags
|= SEC_IS_COMMON
;
5953 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
5955 /* This is a zero-filled subspace (eg BSS). */
5957 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
5959 applicable
&= flags
;
5961 /* If this is an existing subspace, then we want to use the
5962 segment already associated with the subspace.
5964 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5965 lots of sections. It might be a problem in the PA ELF
5966 code, I do not know yet. For now avoid creating anything
5967 but the "standard" sections for ELF. */
5969 section
= subseg_force_new (ss_name
, 0);
5971 section
= ssd
->ssd_seg
;
5973 section
= subseg_new (ss_name
, 0);
5976 seg_info (section
)->bss
= 1;
5978 /* Now set the flags. */
5979 bfd_set_section_flags (stdoutput
, section
, applicable
);
5981 /* Record any alignment request for this section. */
5982 record_alignment (section
, log2 (alignment
));
5984 /* Set the starting offset for this section. */
5985 bfd_set_section_vma (stdoutput
, section
,
5986 pa_subspace_start (space
, quadrant
));
5988 /* Now that all the flags are set, update an existing subspace,
5989 or create a new one. */
5992 current_subspace
= update_subspace (space
, ss_name
, loadable
,
5993 code_only
, common
, dup_common
,
5994 sort
, zero
, access
, space_index
,
5995 alignment
, quadrant
,
5998 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
6000 dup_common
, zero
, sort
,
6001 access
, space_index
,
6002 alignment
, quadrant
, section
);
6004 demand_empty_rest_of_line ();
6005 current_subspace
->ssd_seg
= section
;
6006 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6008 SUBSPACE_DEFINED (current_subspace
) = 1;
6012 /* Create default space and subspace dictionaries. */
6019 space_dict_root
= NULL
;
6020 space_dict_last
= NULL
;
6023 while (pa_def_spaces
[i
].name
)
6027 /* Pick the right name to use for the new section. */
6028 name
= pa_def_spaces
[i
].name
;
6030 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6031 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6032 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6033 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6034 pa_def_spaces
[i
].segment
, 0);
6039 while (pa_def_subspaces
[i
].name
)
6042 int applicable
, subsegment
;
6043 asection
*segment
= NULL
;
6044 sd_chain_struct
*space
;
6046 /* Pick the right name for the new section and pick the right
6047 subsegment number. */
6048 name
= pa_def_subspaces
[i
].name
;
6051 /* Create the new section. */
6052 segment
= subseg_new (name
, subsegment
);
6055 /* For SOM we want to replace the standard .text, .data, and .bss
6056 sections with our own. We also want to set BFD flags for
6057 all the built-in subspaces. */
6058 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6060 text_section
= segment
;
6061 applicable
= bfd_applicable_section_flags (stdoutput
);
6062 bfd_set_section_flags (stdoutput
, segment
,
6063 applicable
& (SEC_ALLOC
| SEC_LOAD
6064 | SEC_RELOC
| SEC_CODE
6066 | SEC_HAS_CONTENTS
));
6068 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6070 data_section
= segment
;
6071 applicable
= bfd_applicable_section_flags (stdoutput
);
6072 bfd_set_section_flags (stdoutput
, segment
,
6073 applicable
& (SEC_ALLOC
| SEC_LOAD
6075 | SEC_HAS_CONTENTS
));
6079 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6081 bss_section
= segment
;
6082 applicable
= bfd_applicable_section_flags (stdoutput
);
6083 bfd_set_section_flags (stdoutput
, segment
,
6084 applicable
& SEC_ALLOC
);
6086 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6088 applicable
= bfd_applicable_section_flags (stdoutput
);
6089 bfd_set_section_flags (stdoutput
, segment
,
6090 applicable
& (SEC_ALLOC
| SEC_LOAD
6093 | SEC_HAS_CONTENTS
));
6095 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6097 applicable
= bfd_applicable_section_flags (stdoutput
);
6098 bfd_set_section_flags (stdoutput
, segment
,
6099 applicable
& (SEC_ALLOC
| SEC_LOAD
6102 | SEC_HAS_CONTENTS
));
6104 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6106 applicable
= bfd_applicable_section_flags (stdoutput
);
6107 bfd_set_section_flags (stdoutput
, segment
,
6108 applicable
& (SEC_ALLOC
| SEC_LOAD
6111 | SEC_HAS_CONTENTS
));
6114 /* Find the space associated with this subspace. */
6115 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6116 def_space_index
].segment
);
6119 as_fatal (_("Internal error: Unable to find containing space for %s."),
6120 pa_def_subspaces
[i
].name
);
6123 create_new_subspace (space
, name
,
6124 pa_def_subspaces
[i
].loadable
,
6125 pa_def_subspaces
[i
].code_only
,
6126 pa_def_subspaces
[i
].common
,
6127 pa_def_subspaces
[i
].dup_common
,
6128 pa_def_subspaces
[i
].zero
,
6129 pa_def_subspaces
[i
].sort
,
6130 pa_def_subspaces
[i
].access
,
6131 pa_def_subspaces
[i
].space_index
,
6132 pa_def_subspaces
[i
].alignment
,
6133 pa_def_subspaces
[i
].quadrant
,
6141 /* Create a new space NAME, with the appropriate flags as defined
6142 by the given parameters. */
6144 static sd_chain_struct
*
6145 create_new_space (name
, spnum
, loadable
, defined
, private,
6146 sort
, seg
, user_defined
)
6156 sd_chain_struct
*chain_entry
;
6158 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6160 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6163 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6164 strcpy (SPACE_NAME (chain_entry
), name
);
6165 SPACE_DEFINED (chain_entry
) = defined
;
6166 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6167 SPACE_SPNUM (chain_entry
) = spnum
;
6169 chain_entry
->sd_seg
= seg
;
6170 chain_entry
->sd_last_subseg
= -1;
6171 chain_entry
->sd_subspaces
= NULL
;
6172 chain_entry
->sd_next
= NULL
;
6174 /* Find spot for the new space based on its sort key. */
6175 if (!space_dict_last
)
6176 space_dict_last
= chain_entry
;
6178 if (space_dict_root
== NULL
)
6179 space_dict_root
= chain_entry
;
6182 sd_chain_struct
*chain_pointer
;
6183 sd_chain_struct
*prev_chain_pointer
;
6185 chain_pointer
= space_dict_root
;
6186 prev_chain_pointer
= NULL
;
6188 while (chain_pointer
)
6190 prev_chain_pointer
= chain_pointer
;
6191 chain_pointer
= chain_pointer
->sd_next
;
6194 /* At this point we've found the correct place to add the new
6195 entry. So add it and update the linked lists as appropriate. */
6196 if (prev_chain_pointer
)
6198 chain_entry
->sd_next
= chain_pointer
;
6199 prev_chain_pointer
->sd_next
= chain_entry
;
6203 space_dict_root
= chain_entry
;
6204 chain_entry
->sd_next
= chain_pointer
;
6207 if (chain_entry
->sd_next
== NULL
)
6208 space_dict_last
= chain_entry
;
6211 /* This is here to catch predefined spaces which do not get
6212 modified by the user's input. Another call is found at
6213 the bottom of pa_parse_space_stmt to handle cases where
6214 the user modifies a predefined space. */
6215 #ifdef obj_set_section_attributes
6216 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6222 /* Create a new subspace NAME, with the appropriate flags as defined
6223 by the given parameters.
6225 Add the new subspace to the subspace dictionary chain in numerical
6226 order as defined by the SORT entries. */
6228 static ssd_chain_struct
*
6229 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6230 dup_common
, is_zero
, sort
, access
, space_index
,
6231 alignment
, quadrant
, seg
)
6232 sd_chain_struct
*space
;
6234 int loadable
, code_only
, common
, dup_common
, is_zero
;
6242 ssd_chain_struct
*chain_entry
;
6244 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6246 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6248 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6249 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6251 /* Initialize subspace_defined. When we hit a .subspace directive
6252 we'll set it to 1 which "locks-in" the subspace attributes. */
6253 SUBSPACE_DEFINED (chain_entry
) = 0;
6255 chain_entry
->ssd_subseg
= 0;
6256 chain_entry
->ssd_seg
= seg
;
6257 chain_entry
->ssd_next
= NULL
;
6259 /* Find spot for the new subspace based on its sort key. */
6260 if (space
->sd_subspaces
== NULL
)
6261 space
->sd_subspaces
= chain_entry
;
6264 ssd_chain_struct
*chain_pointer
;
6265 ssd_chain_struct
*prev_chain_pointer
;
6267 chain_pointer
= space
->sd_subspaces
;
6268 prev_chain_pointer
= NULL
;
6270 while (chain_pointer
)
6272 prev_chain_pointer
= chain_pointer
;
6273 chain_pointer
= chain_pointer
->ssd_next
;
6276 /* Now we have somewhere to put the new entry. Insert it and update
6278 if (prev_chain_pointer
)
6280 chain_entry
->ssd_next
= chain_pointer
;
6281 prev_chain_pointer
->ssd_next
= chain_entry
;
6285 space
->sd_subspaces
= chain_entry
;
6286 chain_entry
->ssd_next
= chain_pointer
;
6290 #ifdef obj_set_subsection_attributes
6291 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6298 /* Update the information for the given subspace based upon the
6299 various arguments. Return the modified subspace chain entry. */
6301 static ssd_chain_struct
*
6302 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6303 zero
, access
, space_index
, alignment
, quadrant
, section
)
6304 sd_chain_struct
*space
;
6318 ssd_chain_struct
*chain_entry
;
6320 chain_entry
= is_defined_subspace (name
);
6322 #ifdef obj_set_subsection_attributes
6323 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6330 /* Return the space chain entry for the space with the name NAME or
6331 NULL if no such space exists. */
6333 static sd_chain_struct
*
6334 is_defined_space (name
)
6337 sd_chain_struct
*chain_pointer
;
6339 for (chain_pointer
= space_dict_root
;
6341 chain_pointer
= chain_pointer
->sd_next
)
6343 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6344 return chain_pointer
;
6347 /* No mapping from segment to space was found. Return NULL. */
6351 /* Find and return the space associated with the given seg. If no mapping
6352 from the given seg to a space is found, then return NULL.
6354 Unlike subspaces, the number of spaces is not expected to grow much,
6355 so a linear exhaustive search is OK here. */
6357 static sd_chain_struct
*
6358 pa_segment_to_space (seg
)
6361 sd_chain_struct
*space_chain
;
6363 /* Walk through each space looking for the correct mapping. */
6364 for (space_chain
= space_dict_root
;
6366 space_chain
= space_chain
->sd_next
)
6368 if (space_chain
->sd_seg
== seg
)
6372 /* Mapping was not found. Return NULL. */
6376 /* Return the space chain entry for the subspace with the name NAME or
6377 NULL if no such subspace exists.
6379 Uses a linear search through all the spaces and subspaces, this may
6380 not be appropriate if we ever being placing each function in its
6383 static ssd_chain_struct
*
6384 is_defined_subspace (name
)
6387 sd_chain_struct
*space_chain
;
6388 ssd_chain_struct
*subspace_chain
;
6390 /* Walk through each space. */
6391 for (space_chain
= space_dict_root
;
6393 space_chain
= space_chain
->sd_next
)
6395 /* Walk through each subspace looking for a name which matches. */
6396 for (subspace_chain
= space_chain
->sd_subspaces
;
6398 subspace_chain
= subspace_chain
->ssd_next
)
6399 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6400 return subspace_chain
;
6403 /* Subspace wasn't found. Return NULL. */
6407 /* Find and return the subspace associated with the given seg. If no
6408 mapping from the given seg to a subspace is found, then return NULL.
6410 If we ever put each procedure/function within its own subspace
6411 (to make life easier on the compiler and linker), then this will have
6412 to become more efficient. */
6414 static ssd_chain_struct
*
6415 pa_subsegment_to_subspace (seg
, subseg
)
6419 sd_chain_struct
*space_chain
;
6420 ssd_chain_struct
*subspace_chain
;
6422 /* Walk through each space. */
6423 for (space_chain
= space_dict_root
;
6425 space_chain
= space_chain
->sd_next
)
6427 if (space_chain
->sd_seg
== seg
)
6429 /* Walk through each subspace within each space looking for
6430 the correct mapping. */
6431 for (subspace_chain
= space_chain
->sd_subspaces
;
6433 subspace_chain
= subspace_chain
->ssd_next
)
6434 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6435 return subspace_chain
;
6439 /* No mapping from subsegment to subspace found. Return NULL. */
6443 /* Given a number, try and find a space with the name number.
6445 Return a pointer to a space dictionary chain entry for the space
6446 that was found or NULL on failure. */
6448 static sd_chain_struct
*
6449 pa_find_space_by_number (number
)
6452 sd_chain_struct
*space_chain
;
6454 for (space_chain
= space_dict_root
;
6456 space_chain
= space_chain
->sd_next
)
6458 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6462 /* No appropriate space found. Return NULL. */
6466 /* Return the starting address for the given subspace. If the starting
6467 address is unknown then return zero. */
6470 pa_subspace_start (space
, quadrant
)
6471 sd_chain_struct
*space
;
6474 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6475 is not correct for the PA OSF1 port. */
6476 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6478 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6485 /* FIXME. Needs documentation. */
6487 pa_next_subseg (space
)
6488 sd_chain_struct
*space
;
6491 space
->sd_last_subseg
++;
6492 return space
->sd_last_subseg
;
6496 /* Helper function for pa_stringer. Used to find the end of
6503 unsigned int c
= *s
& CHAR_MASK
;
6506 /* We must have a valid space and subspace. */
6507 pa_check_current_space_and_subspace ();
6521 /* Handle a .STRING type pseudo-op. */
6524 pa_stringer (append_zero
)
6527 char *s
, num_buf
[4];
6531 /* Preprocess the string to handle PA-specific escape sequences.
6532 For example, \xDD where DD is a hexidecimal number should be
6533 changed to \OOO where OOO is an octal number. */
6535 /* Skip the opening quote. */
6536 s
= input_line_pointer
+ 1;
6538 while (is_a_char (c
= pa_stringer_aux (s
++)))
6545 /* Handle \x<num>. */
6548 unsigned int number
;
6553 /* Get pas the 'x'. */
6555 for (num_digit
= 0, number
= 0, dg
= *s
;
6557 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6558 || (dg
>= 'A' && dg
<= 'F'));
6562 number
= number
* 16 + dg
- '0';
6563 else if (dg
>= 'a' && dg
<= 'f')
6564 number
= number
* 16 + dg
- 'a' + 10;
6566 number
= number
* 16 + dg
- 'A' + 10;
6576 sprintf (num_buf
, "%02o", number
);
6579 sprintf (num_buf
, "%03o", number
);
6582 for (i
= 0; i
<= num_digit
; i
++)
6583 s_start
[i
] = num_buf
[i
];
6587 /* This might be a "\"", skip over the escaped char. */
6594 stringer (append_zero
);
6595 pa_undefine_label ();
6598 /* Handle a .VERSION pseudo-op. */
6605 pa_undefine_label ();
6610 /* Handle a .COMPILER pseudo-op. */
6613 pa_compiler (unused
)
6616 obj_som_compiler (0);
6617 pa_undefine_label ();
6622 /* Handle a .COPYRIGHT pseudo-op. */
6625 pa_copyright (unused
)
6629 pa_undefine_label ();
6632 /* Just like a normal cons, but when finished we have to undefine
6633 the latest space label. */
6640 pa_undefine_label ();
6643 /* Switch to the data space. As usual delete our label. */
6650 current_space
= is_defined_space ("$PRIVATE$");
6652 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6655 pa_undefine_label ();
6658 /* Like float_cons, but we need to undefine our label. */
6661 pa_float_cons (float_type
)
6664 float_cons (float_type
);
6665 pa_undefine_label ();
6668 /* Like s_fill, but delete our label when finished. */
6675 /* We must have a valid space and subspace. */
6676 pa_check_current_space_and_subspace ();
6680 pa_undefine_label ();
6683 /* Like lcomm, but delete our label when finished. */
6686 pa_lcomm (needs_align
)
6690 /* We must have a valid space and subspace. */
6691 pa_check_current_space_and_subspace ();
6694 s_lcomm (needs_align
);
6695 pa_undefine_label ();
6698 /* Like lsym, but delete our label when finished. */
6705 /* We must have a valid space and subspace. */
6706 pa_check_current_space_and_subspace ();
6710 pa_undefine_label ();
6713 /* Switch to the text space. Like s_text, but delete our
6714 label when finished. */
6720 current_space
= is_defined_space ("$TEXT$");
6722 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6726 pa_undefine_label ();
6729 /* On the PA relocations which involve function symbols must not be
6730 adjusted. This so that the linker can know when/how to create argument
6731 relocation stubs for indirect calls and calls to static functions.
6733 "T" field selectors create DLT relative fixups for accessing
6734 globals and statics in PIC code; each DLT relative fixup creates
6735 an entry in the DLT table. The entries contain the address of
6736 the final target (eg accessing "foo" would create a DLT entry
6737 with the address of "foo").
6739 Unfortunately, the HP linker doesn't take into account any addend
6740 when generating the DLT; so accessing $LIT$+8 puts the address of
6741 $LIT$ into the DLT rather than the address of $LIT$+8.
6743 The end result is we can't perform relocation symbol reductions for
6744 any fixup which creates entries in the DLT (eg they use "T" field
6747 Reject reductions involving symbols with external scope; such
6748 reductions make life a living hell for object file editors.
6750 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6751 the code space. The SOM BFD backend doesn't know how to pull the
6752 right bits out of an instruction. */
6755 hppa_fix_adjustable (fixp
)
6758 struct hppa_fix_struct
*hppa_fix
;
6760 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6763 /* Reject reductions of symbols in 32bit relocs. */
6764 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
6767 /* Reject reductions of symbols in sym1-sym2 expressions when
6768 the fixup will occur in a CODE subspace.
6770 XXX FIXME: Long term we probably want to reject all of these;
6771 for example reducing in the debug section would lose if we ever
6772 supported using the optimizing hp linker. */
6775 && (hppa_fix
->segment
->flags
& SEC_CODE
))
6777 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
6778 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
6782 /* We can't adjust any relocs that use LR% and RR% field selectors.
6783 That confuses the HP linker. */
6784 if (hppa_fix
->fx_r_field
== e_lrsel
6785 || hppa_fix
->fx_r_field
== e_rrsel
6786 || hppa_fix
->fx_r_field
== e_nlrsel
)
6790 /* Reject reductions of symbols in DLT relative relocs,
6791 relocations with plabels. */
6792 if (hppa_fix
->fx_r_field
== e_tsel
6793 || hppa_fix
->fx_r_field
== e_ltsel
6794 || hppa_fix
->fx_r_field
== e_rtsel
6795 || hppa_fix
->fx_r_field
== e_psel
6796 || hppa_fix
->fx_r_field
== e_rpsel
6797 || hppa_fix
->fx_r_field
== e_lpsel
)
6800 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
6803 /* Reject absolute calls (jumps). */
6804 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
6807 /* Reject reductions of function symbols. */
6808 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
6814 /* Return nonzero if the fixup in FIXP will require a relocation,
6815 even it if appears that the fixup could be completely handled
6819 hppa_force_relocation (fixp
)
6822 struct hppa_fix_struct
*hppa_fixp
;
6825 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6827 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
6828 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
6829 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
6830 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
6831 || fixp
->fx_r_type
== R_HPPA_END_TRY
6832 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
6833 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
6837 #define arg_reloc_stub_needed(CALLER, CALLEE) \
6838 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6841 /* It is necessary to force PC-relative calls/jumps to have a relocation
6842 entry if they're going to need either a argument relocation or long
6843 call stub. FIXME. Can't we need the same for absolute calls? */
6844 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
6845 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
6846 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
6847 hppa_fixp
->fx_arg_reloc
)))
6850 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
6851 - md_pcrel_from (fixp
));
6852 /* Now check and see if we're going to need a long-branch stub. */
6853 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
6854 && (distance
> 262143 || distance
< -262144))
6857 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
6859 #undef arg_reloc_stub_needed
6861 /* No need (yet) to force another relocations to be emitted. */
6865 /* Now for some ELF specific code. FIXME. */
6867 /* Mark the end of a function so that it's possible to compute
6868 the size of the function in hppa_elf_final_processing. */
6871 hppa_elf_mark_end_of_function ()
6873 /* ELF does not have EXIT relocations. All we do is create a
6874 temporary symbol marking the end of the function. */
6875 char *name
= (char *)
6876 xmalloc (strlen ("L$\001end_") +
6877 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
6883 strcpy (name
, "L$\001end_");
6884 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
6886 /* If we have a .exit followed by a .procend, then the
6887 symbol will have already been defined. */
6888 symbolP
= symbol_find (name
);
6891 /* The symbol has already been defined! This can
6892 happen if we have a .exit followed by a .procend.
6894 This is *not* an error. All we want to do is free
6895 the memory we just allocated for the name and continue. */
6900 /* symbol value should be the offset of the
6901 last instruction of the function */
6902 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
6906 S_CLEAR_EXTERNAL (symbolP
);
6907 symbol_table_insert (symbolP
);
6911 last_call_info
->end_symbol
= symbolP
;
6913 as_bad (_("Symbol '%s' could not be created."), name
);
6917 as_bad (_("No memory for symbol name."));
6921 /* For ELF, this function serves one purpose: to setup the st_size
6922 field of STT_FUNC symbols. To do this, we need to scan the
6923 call_info structure list, determining st_size in by taking the
6924 difference in the address of the beginning/end marker symbols. */
6927 elf_hppa_final_processing ()
6929 struct call_info
*call_info_pointer
;
6931 for (call_info_pointer
= call_info_root
;
6933 call_info_pointer
= call_info_pointer
->ci_next
)
6935 elf_symbol_type
*esym
6936 = ((elf_symbol_type
*)
6937 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
6938 esym
->internal_elf_sym
.st_size
=
6939 S_GET_VALUE (call_info_pointer
->end_symbol
)
6940 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;