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 %sar or %cr11. No bits get set, we just verify that it
1575 /* Skip whitespace before register. */
1576 while (*s
== ' ' || *s
== '\t')
1579 if (!strncasecmp(s
, "%sar", 4))
1584 else if (!strncasecmp(s
, "%cr11", 5))
1591 /* Handle a 5 bit register field at 15. */
1593 num
= pa_parse_number (&s
, 0);
1594 CHECK_FIELD (num
, 31, 0, 0);
1595 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1597 /* Handle a 5 bit register field at 31. */
1600 num
= pa_parse_number (&s
, 0);
1601 CHECK_FIELD (num
, 31, 0, 0);
1602 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1604 /* Handle a 5 bit field length at 31. */
1606 num
= pa_get_absolute_expression (&the_insn
, &s
);
1608 CHECK_FIELD (num
, 32, 1, 0);
1609 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
1611 /* Handle a 5 bit immediate at 15. */
1613 num
= pa_get_absolute_expression (&the_insn
, &s
);
1615 CHECK_FIELD (num
, 15, -16, 0);
1616 low_sign_unext (num
, 5, &num
);
1617 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1619 /* Handle a 5 bit immediate at 31. */
1621 num
= pa_get_absolute_expression (&the_insn
, &s
);
1623 CHECK_FIELD (num
, 15, -16, 0)
1624 low_sign_unext (num
, 5, &num
);
1625 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1627 /* Handle an unsigned 5 bit immediate at 31. */
1629 num
= pa_get_absolute_expression (&the_insn
, &s
);
1631 CHECK_FIELD (num
, 31, 0, 0);
1632 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1634 /* Handle an unsigned 5 bit immediate at 15. */
1636 num
= pa_get_absolute_expression (&the_insn
, &s
);
1638 CHECK_FIELD (num
, 31, 0, 0);
1639 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1641 /* Handle a 2 bit space identifier at 17. */
1643 num
= pa_parse_number (&s
, 0);
1644 CHECK_FIELD (num
, 3, 0, 1);
1645 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
1647 /* Handle a 3 bit space identifier at 18. */
1649 num
= pa_parse_number (&s
, 0);
1650 CHECK_FIELD (num
, 7, 0, 1);
1651 dis_assemble_3 (num
, &num
);
1652 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
1654 /* Handle all completers. */
1659 /* Handle a completer for an indexing load or store. */
1665 while (*s
== ',' && i
< 2)
1668 if (strncasecmp (s
, "sm", 2) == 0)
1675 else if (strncasecmp (s
, "m", 1) == 0)
1677 else if (strncasecmp (s
, "s", 1) == 0)
1680 as_bad (_("Invalid Indexed Load Completer."));
1685 as_bad (_("Invalid Indexed Load Completer Syntax."));
1687 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
1690 /* Handle a short load/store completer. */
1698 if (strncasecmp (s
, "ma", 2) == 0)
1703 else if (strncasecmp (s
, "mb", 2) == 0)
1709 as_bad (_("Invalid Short Load/Store Completer."));
1714 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1717 /* Handle a stbys completer. */
1723 while (*s
== ',' && i
< 2)
1726 if (strncasecmp (s
, "m", 1) == 0)
1728 else if (strncasecmp (s
, "b", 1) == 0)
1730 else if (strncasecmp (s
, "e", 1) == 0)
1733 as_bad (_("Invalid Store Bytes Short Completer"));
1738 as_bad (_("Invalid Store Bytes Short Completer"));
1740 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1743 /* Handle a system control completer. */
1745 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
1753 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1760 /* Handle all conditions. */
1766 /* Handle FP compare conditions. */
1768 cond
= pa_parse_fp_cmp_cond (&s
);
1769 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
1771 /* Handle an add condition. */
1780 /* 64 bit conditions. */
1792 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1796 if (strcmp (name
, "=") == 0)
1798 else if (strcmp (name
, "<") == 0)
1800 else if (strcmp (name
, "<=") == 0)
1802 else if (strcasecmp (name
, "nuv") == 0)
1804 else if (strcasecmp (name
, "znv") == 0)
1806 else if (strcasecmp (name
, "sv") == 0)
1808 else if (strcasecmp (name
, "od") == 0)
1810 else if (strcasecmp (name
, "tr") == 0)
1815 else if (strcmp (name
, "<>") == 0)
1820 else if (strcmp (name
, ">=") == 0)
1825 else if (strcmp (name
, ">") == 0)
1830 else if (strcasecmp (name
, "uv") == 0)
1835 else if (strcasecmp (name
, "vnz") == 0)
1840 else if (strcasecmp (name
, "nsv") == 0)
1845 else if (strcasecmp (name
, "ev") == 0)
1850 /* ",*" is a valid condition. */
1851 else if (*args
== 'a')
1852 as_bad (_("Invalid Add Condition: %s"), name
);
1855 opcode
|= cmpltr
<< 13;
1856 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
1858 /* Handle non-negated add and branch condition. */
1860 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1863 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
1866 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1868 /* Handle negated add and branch condition. */
1872 /* Handle wide-mode non-negated add and branch condition. */
1876 /* Handle wide-mode negated add and branch condition. */
1880 /* Handle a negated or non-negated add and branch
1884 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1888 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
1891 as_bad (_("Invalid Compare/Subtract Condition"));
1896 /* Negated condition requires an opcode change. */
1900 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1902 /* Handle branch on bit conditions. */
1920 if (strncmp (s
, "<", 1) == 0)
1925 else if (strncmp (s
, ">=", 2) == 0)
1931 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
1933 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
1935 /* Handle a compare/subtract condition. */
1944 /* 64 bit conditions. */
1956 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1960 if (strcmp (name
, "=") == 0)
1962 else if (strcmp (name
, "<") == 0)
1964 else if (strcmp (name
, "<=") == 0)
1966 else if (strcasecmp (name
, "<<") == 0)
1968 else if (strcasecmp (name
, "<<=") == 0)
1970 else if (strcasecmp (name
, "sv") == 0)
1972 else if (strcasecmp (name
, "od") == 0)
1974 else if (strcasecmp (name
, "tr") == 0)
1979 else if (strcmp (name
, "<>") == 0)
1984 else if (strcmp (name
, ">=") == 0)
1989 else if (strcmp (name
, ">") == 0)
1994 else if (strcasecmp (name
, ">>=") == 0)
1999 else if (strcasecmp (name
, ">>") == 0)
2004 else if (strcasecmp (name
, "nsv") == 0)
2009 else if (strcasecmp (name
, "ev") == 0)
2014 /* ",*" is a valid condition. */
2015 else if (*args
!= 'S')
2016 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2020 opcode
|= cmpltr
<< 13;
2021 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2023 /* Handle a non-negated compare condition. */
2025 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2028 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2031 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2033 /* Handle a negated compare condition. */
2037 /* Handle a 64 bit non-negated compare condition. */
2041 /* Handle a 64 bit negated compare condition. */
2045 /* Handle a 64 bit cmpib condition. */
2049 /* Handle a negated or non-negated compare/subtract
2053 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2057 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2060 as_bad (_("Invalid Compare/Subtract Condition."));
2065 /* Negated condition requires an opcode change. */
2070 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2072 /* Handle a logical instruction condition. */
2081 /* 64 bit conditions. */
2093 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2099 if (strcmp (name
, "=") == 0)
2101 else if (strcmp (name
, "<") == 0)
2103 else if (strcmp (name
, "<=") == 0)
2105 else if (strcasecmp (name
, "od") == 0)
2107 else if (strcasecmp (name
, "tr") == 0)
2112 else if (strcmp (name
, "<>") == 0)
2117 else if (strcmp (name
, ">=") == 0)
2122 else if (strcmp (name
, ">") == 0)
2127 else if (strcasecmp (name
, "ev") == 0)
2132 /* ",*" is a valid condition. */
2133 else if (*args
!= 'L')
2134 as_bad (_("Invalid Logical Instruction Condition."));
2137 opcode
|= cmpltr
<< 13;
2138 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2140 /* Handle a shift/extract/deposit condition. */
2149 /* 64 bit conditions. */
2161 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2165 if (strcmp (name
, "=") == 0)
2167 else if (strcmp (name
, "<") == 0)
2169 else if (strcasecmp (name
, "od") == 0)
2171 else if (strcasecmp (name
, "tr") == 0)
2173 else if (strcmp (name
, "<>") == 0)
2175 else if (strcmp (name
, ">=") == 0)
2177 else if (strcasecmp (name
, "ev") == 0)
2179 /* Handle movb,n. Put things back the way they were.
2180 This includes moving s back to where it started. */
2181 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2187 /* ",*" is a valid condition. */
2188 else if (*args
!= 'X')
2189 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2192 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2194 /* Handle a unit instruction condition. */
2203 /* 64 bit conditions. */
2214 if (strncasecmp (s
, "sbz", 3) == 0)
2219 else if (strncasecmp (s
, "shz", 3) == 0)
2224 else if (strncasecmp (s
, "sdc", 3) == 0)
2229 else if (strncasecmp (s
, "sbc", 3) == 0)
2234 else if (strncasecmp (s
, "shc", 3) == 0)
2239 else if (strncasecmp (s
, "tr", 2) == 0)
2245 else if (strncasecmp (s
, "nbz", 3) == 0)
2251 else if (strncasecmp (s
, "nhz", 3) == 0)
2257 else if (strncasecmp (s
, "ndc", 3) == 0)
2263 else if (strncasecmp (s
, "nbc", 3) == 0)
2269 else if (strncasecmp (s
, "nhc", 3) == 0)
2275 /* ",*" is a valid condition. */
2276 else if (*args
!= 'U')
2277 as_bad (_("Invalid Unit Instruction Condition."));
2279 opcode
|= cmpltr
<< 13;
2280 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2288 /* Handle a nullification completer for branch instructions. */
2290 nullif
= pa_parse_nullif (&s
);
2291 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2293 /* Handle a nullification completer for copr and spop insns. */
2295 nullif
= pa_parse_nullif (&s
);
2296 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2299 /* Handle a 11 bit immediate at 31. */
2301 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2304 if (the_insn
.exp
.X_op
== O_constant
)
2306 num
= evaluate_absolute (&the_insn
);
2307 CHECK_FIELD (num
, 1023, -1024, 0);
2308 low_sign_unext (num
, 11, &num
);
2309 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2313 if (is_DP_relative (the_insn
.exp
))
2314 the_insn
.reloc
= R_HPPA_GOTOFF
;
2315 else if (is_PC_relative (the_insn
.exp
))
2316 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2318 the_insn
.reloc
= R_HPPA
;
2319 the_insn
.format
= 11;
2324 /* Handle a 14 bit immediate at 31. */
2326 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2329 if (the_insn
.exp
.X_op
== O_constant
)
2331 num
= evaluate_absolute (&the_insn
);
2332 CHECK_FIELD (num
, 8191, -8192, 0);
2333 low_sign_unext (num
, 14, &num
);
2334 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2338 if (is_DP_relative (the_insn
.exp
))
2339 the_insn
.reloc
= R_HPPA_GOTOFF
;
2340 else if (is_PC_relative (the_insn
.exp
))
2341 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2343 the_insn
.reloc
= R_HPPA
;
2344 the_insn
.format
= 14;
2348 /* Handle a 21 bit immediate at 31. */
2350 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2353 if (the_insn
.exp
.X_op
== O_constant
)
2355 num
= evaluate_absolute (&the_insn
);
2356 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2357 dis_assemble_21 (num
, &num
);
2358 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2362 if (is_DP_relative (the_insn
.exp
))
2363 the_insn
.reloc
= R_HPPA_GOTOFF
;
2364 else if (is_PC_relative (the_insn
.exp
))
2365 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2367 the_insn
.reloc
= R_HPPA
;
2368 the_insn
.format
= 21;
2372 /* Handle a 12 bit branch displacement. */
2374 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2378 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2380 unsigned int w1
, w
, result
;
2382 num
= evaluate_absolute (&the_insn
);
2385 as_bad (_("Branch to unaligned address"));
2388 CHECK_FIELD (num
, 8199, -8184, 0);
2389 sign_unext ((num
- 8) >> 2, 12, &result
);
2390 dis_assemble_12 (result
, &w1
, &w
);
2391 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2395 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2396 the_insn
.format
= 12;
2397 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2398 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2403 /* Handle a 17 bit branch displacement. */
2405 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2409 if (!the_insn
.exp
.X_add_symbol
2410 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2413 unsigned int w2
, w1
, w
, result
;
2415 num
= evaluate_absolute (&the_insn
);
2418 as_bad (_("Branch to unaligned address"));
2421 CHECK_FIELD (num
, 262143, -262144, 0);
2423 if (the_insn
.exp
.X_add_symbol
)
2426 sign_unext (num
>> 2, 17, &result
);
2427 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2428 INSERT_FIELD_AND_CONTINUE (opcode
,
2429 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2433 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2434 the_insn
.format
= 17;
2435 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2436 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2440 /* Handle an absolute 17 bit branch target. */
2442 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2446 if (!the_insn
.exp
.X_add_symbol
2447 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2450 unsigned int w2
, w1
, w
, result
;
2452 num
= evaluate_absolute (&the_insn
);
2455 as_bad (_("Branch to unaligned address"));
2458 CHECK_FIELD (num
, 262143, -262144, 0);
2460 if (the_insn
.exp
.X_add_symbol
)
2463 sign_unext (num
>> 2, 17, &result
);
2464 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2465 INSERT_FIELD_AND_CONTINUE (opcode
,
2466 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2470 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2471 the_insn
.format
= 17;
2472 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2473 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2477 /* Handle a 2 bit shift count at 25. */
2479 num
= pa_get_absolute_expression (&the_insn
, &s
);
2481 CHECK_FIELD (num
, 3, 1, 0);
2482 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2484 /* Handle a 5 bit shift count at 26. */
2486 num
= pa_get_absolute_expression (&the_insn
, &s
);
2488 CHECK_FIELD (num
, 31, 0, 0);
2489 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2491 /* Handle a 6 bit shift count at 20,22:26. */
2493 num
= pa_get_absolute_expression (&the_insn
, &s
);
2495 CHECK_FIELD (num
, 63, 0, 0);
2497 opcode
|= (num
& 0x20) << 6;
2498 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2500 /* Handle a 5 bit bit position at 26. */
2502 num
= pa_get_absolute_expression (&the_insn
, &s
);
2504 CHECK_FIELD (num
, 31, 0, 0);
2505 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2507 /* Handle a 5 bit immediate at 10. */
2510 num
= pa_get_absolute_expression (&the_insn
, &s
);
2511 if (the_insn
.exp
.X_op
!= O_constant
)
2514 CHECK_FIELD (num
, 31, 0, 0);
2515 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2517 /* Handle a 9 bit immediate at 28. */
2519 num
= pa_get_absolute_expression (&the_insn
, &s
);
2521 CHECK_FIELD (num
, 511, 1, 0);
2522 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
2524 /* Handle a 13 bit immediate at 18. */
2526 num
= pa_get_absolute_expression (&the_insn
, &s
);
2528 CHECK_FIELD (num
, 8191, 0, 0);
2529 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2531 /* Handle a 26 bit immediate at 31. */
2533 num
= pa_get_absolute_expression (&the_insn
, &s
);
2535 CHECK_FIELD (num
, 671108864, 0, 0);
2536 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2538 /* Handle a 3 bit SFU identifier at 25. */
2541 as_bad (_("Invalid SFU identifier"));
2542 num
= pa_get_absolute_expression (&the_insn
, &s
);
2544 CHECK_FIELD (num
, 7, 0, 0);
2545 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2547 /* Handle a 20 bit SOP field for spop0. */
2549 num
= pa_get_absolute_expression (&the_insn
, &s
);
2551 CHECK_FIELD (num
, 1048575, 0, 0);
2552 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2553 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2555 /* Handle a 15bit SOP field for spop1. */
2557 num
= pa_get_absolute_expression (&the_insn
, &s
);
2559 CHECK_FIELD (num
, 32767, 0, 0);
2560 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2562 /* Handle a 10bit SOP field for spop3. */
2564 num
= pa_get_absolute_expression (&the_insn
, &s
);
2566 CHECK_FIELD (num
, 1023, 0, 0);
2567 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
2568 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2570 /* Handle a 15 bit SOP field for spop2. */
2572 num
= pa_get_absolute_expression (&the_insn
, &s
);
2574 CHECK_FIELD (num
, 32767, 0, 0);
2575 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
2576 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2578 /* Handle a 3-bit co-processor ID field. */
2581 as_bad (_("Invalid COPR identifier"));
2582 num
= pa_get_absolute_expression (&the_insn
, &s
);
2584 CHECK_FIELD (num
, 7, 0, 0);
2585 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2587 /* Handle a 22bit SOP field for copr. */
2589 num
= pa_get_absolute_expression (&the_insn
, &s
);
2591 CHECK_FIELD (num
, 4194303, 0, 0);
2592 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
2593 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2596 /* Handle a source FP operand format completer. */
2598 flag
= pa_parse_fp_format (&s
);
2599 the_insn
.fpof1
= flag
;
2600 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2602 /* Handle a destination FP operand format completer. */
2604 /* pa_parse_format needs the ',' prefix. */
2606 flag
= pa_parse_fp_format (&s
);
2607 the_insn
.fpof2
= flag
;
2608 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
2610 /* Handle a source FP operand format completer at 20. */
2612 flag
= pa_parse_fp_format (&s
);
2613 the_insn
.fpof1
= flag
;
2614 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2616 /* Handle L/R register halves like 't'. */
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
;
2625 /* 0x30 opcodes are FP arithmetic operation opcodes
2626 and need to be turned into 0x38 opcodes. This
2627 is not necessary for loads/stores. */
2628 if (need_pa11_opcode (&the_insn
, &result
)
2629 && ((opcode
& 0xfc000000) == 0x30000000))
2632 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
2635 /* Handle L/R register halves like 'b'. */
2638 struct pa_11_fp_reg_struct result
;
2640 pa_parse_number (&s
, &result
);
2641 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2642 opcode
|= result
.number_part
<< 21;
2643 if (need_pa11_opcode (&the_insn
, &result
))
2645 opcode
|= (result
.l_r_select
& 1) << 7;
2651 /* Float operand 1 similar to 'b' but with l/r registers. */
2654 struct pa_11_fp_reg_struct result
;
2656 pa_parse_number (&s
, &result
);
2657 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2658 opcode
|= result
.number_part
<< 21;
2659 opcode
|= (result
.l_r_select
& 1) << 7;
2663 /* Handle L/R register halves like 'b'. */
2666 struct pa_11_fp_reg_struct result
;
2669 pa_parse_number (&s
, &result
);
2670 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2671 opcode
|= (result
.number_part
& 0x1c) << 11;
2672 opcode
|= (result
.number_part
& 0x3) << 9;
2673 opcode
|= (result
.l_r_select
& 1) << 8;
2677 /* Handle L/R register halves like 'x'. */
2680 struct pa_11_fp_reg_struct result
;
2682 pa_parse_number (&s
, &result
);
2683 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2684 opcode
|= (result
.number_part
& 0x1f) << 16;
2685 if (need_pa11_opcode (&the_insn
, &result
))
2687 opcode
|= (result
.l_r_select
& 1) << 1;
2692 /* Handle L/R register halves like 'x'. */
2695 struct pa_11_fp_reg_struct result
;
2697 pa_parse_number (&s
, &result
);
2698 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2699 opcode
|= (result
.number_part
& 0x1f) << 16;
2700 if (need_pa11_opcode (&the_insn
, &result
))
2702 opcode
|= (result
.l_r_select
& 1) << 12;
2708 /* Float operand 2, like 'x' but with l/r register halves. */
2711 struct pa_11_fp_reg_struct result
;
2713 pa_parse_number (&s
, &result
);
2714 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2715 opcode
|= (result
.number_part
& 0x1f) << 16;
2716 opcode
|= (result
.l_r_select
& 1) << 12;
2720 /* Handle a 5 bit register field at 10. */
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"));
2735 result
.number_part
&= 0xF;
2736 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2738 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
2741 /* Handle a 5 bit register field at 15. */
2744 struct pa_11_fp_reg_struct result
;
2746 pa_parse_number (&s
, &result
);
2747 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2748 if (the_insn
.fpof1
== SGL
)
2750 if (result
.number_part
< 16)
2752 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2755 result
.number_part
&= 0xF;
2756 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2758 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
2761 /* Handle a 5 bit register field at 31. */
2764 struct pa_11_fp_reg_struct result
;
2766 pa_parse_number (&s
, &result
);
2767 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2768 if (the_insn
.fpof1
== SGL
)
2770 if (result
.number_part
< 16)
2772 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2775 result
.number_part
&= 0xF;
2776 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2778 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
2781 /* Handle a 5 bit register field at 20. */
2784 struct pa_11_fp_reg_struct result
;
2786 pa_parse_number (&s
, &result
);
2787 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2788 if (the_insn
.fpof1
== SGL
)
2790 if (result
.number_part
< 16)
2792 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2795 result
.number_part
&= 0xF;
2796 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2798 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
2801 /* Handle a 5 bit register field at 25. */
2804 struct pa_11_fp_reg_struct result
;
2806 pa_parse_number (&s
, &result
);
2807 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2808 if (the_insn
.fpof1
== SGL
)
2810 if (result
.number_part
< 16)
2812 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2815 result
.number_part
&= 0xF;
2816 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2818 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
2821 /* Handle a floating point operand format at 26.
2822 Only allows single and double precision. */
2824 flag
= pa_parse_fp_format (&s
);
2830 the_insn
.fpof1
= flag
;
2836 as_bad (_("Invalid Floating Point Operand Format."));
2847 /* Check if the args matched. */
2850 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
2851 && !strcmp (insn
->name
, insn
[1].name
))
2859 as_bad (_("Invalid operands %s"), error_message
);
2866 the_insn
.opcode
= opcode
;
2869 /* Turn a string in input_line_pointer into a floating point constant of type
2870 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
2871 emitted is stored in *sizeP . An error message or NULL is returned. */
2873 #define MAX_LITTLENUMS 6
2876 md_atof (type
, litP
, sizeP
)
2882 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
2883 LITTLENUM_TYPE
*wordP
;
2915 return _("Bad call to MD_ATOF()");
2917 t
= atof_ieee (input_line_pointer
, type
, words
);
2919 input_line_pointer
= t
;
2920 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
2921 for (wordP
= words
; prec
--;)
2923 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
2924 litP
+= sizeof (LITTLENUM_TYPE
);
2929 /* Write out big-endian. */
2932 md_number_to_chars (buf
, val
, n
)
2937 number_to_chars_bigendian (buf
, val
, n
);
2940 /* Translate internal representation of relocation info to BFD target
2944 tc_gen_reloc (section
, fixp
)
2949 struct hppa_fix_struct
*hppa_fixp
;
2950 bfd_reloc_code_real_type code
;
2951 static arelent
*no_relocs
= NULL
;
2953 bfd_reloc_code_real_type
**codes
;
2957 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
2958 if (fixp
->fx_addsy
== 0)
2960 assert (hppa_fixp
!= 0);
2961 assert (section
!= 0);
2963 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
2965 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2966 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2967 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
2969 hppa_fixp
->fx_r_format
,
2970 hppa_fixp
->fx_r_field
,
2971 fixp
->fx_subsy
!= NULL
,
2972 symbol_get_bfdsym (fixp
->fx_addsy
));
2977 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
2980 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
2981 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
2982 for (i
= 0; i
< n_relocs
; i
++)
2983 relocs
[i
] = &reloc
[i
];
2985 relocs
[n_relocs
] = NULL
;
2988 switch (fixp
->fx_r_type
)
2991 assert (n_relocs
== 1);
2995 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
2996 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
2997 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2998 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2999 reloc
->addend
= 0; /* default */
3001 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
3003 /* Now, do any processing that is dependent on the relocation type. */
3006 case R_PARISC_DLTREL21L
:
3007 case R_PARISC_DLTREL14R
:
3008 case R_PARISC_DLTREL14F
:
3009 case R_PARISC_PLABEL32
:
3010 case R_PARISC_PLABEL21L
:
3011 case R_PARISC_PLABEL14R
:
3012 /* For plabel relocations, the addend of the
3013 relocation should be either 0 (no static link) or 2
3014 (static link required).
3016 FIXME: We always assume no static link!
3018 We also slam a zero addend into the DLT relative relocs;
3019 it doesn't make a lot of sense to use any addend since
3020 it gets you a different (eg unknown) DLT entry. */
3024 case R_PARISC_PCREL21L
:
3025 case R_PARISC_PCREL17R
:
3026 case R_PARISC_PCREL17F
:
3027 case R_PARISC_PCREL17C
:
3028 case R_PARISC_PCREL14R
:
3029 case R_PARISC_PCREL14F
:
3030 /* The constant is stored in the instruction. */
3031 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3034 reloc
->addend
= fixp
->fx_offset
;
3041 /* Walk over reach relocation returned by the BFD backend. */
3042 for (i
= 0; i
< n_relocs
; i
++)
3046 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3047 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3048 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3049 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3054 /* The only time we ever use a R_COMP2 fixup is for the difference
3055 of two symbols. With that in mind we fill in all four
3056 relocs now and break out of the loop. */
3058 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3059 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
3060 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3061 relocs
[0]->addend
= 0;
3062 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3063 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3064 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
3065 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3066 relocs
[1]->addend
= 0;
3067 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3068 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3069 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3070 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3071 relocs
[2]->addend
= 0;
3072 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3073 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3074 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3075 relocs
[3]->addend
= 0;
3076 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3077 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3078 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3079 relocs
[4]->addend
= 0;
3083 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3089 /* For plabel relocations, the addend of the
3090 relocation should be either 0 (no static link) or 2
3091 (static link required).
3093 FIXME: We always assume no static link!
3095 We also slam a zero addend into the DLT relative relocs;
3096 it doesn't make a lot of sense to use any addend since
3097 it gets you a different (eg unknown) DLT entry. */
3098 relocs
[i
]->addend
= 0;
3113 /* There is no symbol or addend associated with these fixups. */
3114 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3115 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3116 relocs
[i
]->addend
= 0;
3122 /* There is no symbol associated with these fixups. */
3123 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3124 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3125 relocs
[i
]->addend
= fixp
->fx_offset
;
3129 relocs
[i
]->addend
= fixp
->fx_offset
;
3139 /* Process any machine dependent frag types. */
3142 md_convert_frag (abfd
, sec
, fragP
)
3144 register asection
*sec
;
3145 register fragS
*fragP
;
3147 unsigned int address
;
3149 if (fragP
->fr_type
== rs_machine_dependent
)
3151 switch ((int) fragP
->fr_subtype
)
3154 fragP
->fr_type
= rs_fill
;
3155 know (fragP
->fr_var
== 1);
3156 know (fragP
->fr_next
);
3157 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3158 if (address
% fragP
->fr_offset
)
3161 fragP
->fr_next
->fr_address
3166 fragP
->fr_offset
= 0;
3172 /* Round up a section size to the appropriate boundary. */
3175 md_section_align (segment
, size
)
3179 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3180 int align2
= (1 << align
) - 1;
3182 return (size
+ align2
) & ~align2
;
3185 /* Return the approximate size of a frag before relaxation has occurred. */
3187 md_estimate_size_before_relax (fragP
, segment
)
3188 register fragS
*fragP
;
3195 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3201 CONST
char *md_shortopts
= "";
3202 struct option md_longopts
[] = {
3203 {NULL
, no_argument
, NULL
, 0}
3205 size_t md_longopts_size
= sizeof(md_longopts
);
3208 md_parse_option (c
, arg
)
3216 md_show_usage (stream
)
3221 /* We have no need to default values of symbols. */
3224 md_undefined_symbol (name
)
3230 /* Apply a fixup to an instruction. */
3233 md_apply_fix (fixP
, valp
)
3237 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3238 struct hppa_fix_struct
*hppa_fixP
;
3239 long new_val
, result
= 0;
3240 unsigned int w1
, w2
, w
, resulti
;
3242 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3243 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3244 never be "applied" (they are just markers). Likewise for
3245 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3247 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3248 || fixP
->fx_r_type
== R_HPPA_EXIT
3249 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3250 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3251 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3254 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3255 fixups are considered not adjustable, which in turn causes
3256 adjust_reloc_syms to not set fx_offset. Ugh. */
3257 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3259 fixP
->fx_offset
= *valp
;
3264 /* There should have been an HPPA specific fixup associated
3265 with the GAS fixup. */
3268 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3269 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3271 /* If there is a symbol associated with this fixup, then it's something
3272 which will need a SOM relocation (except for some PC-relative relocs).
3273 In such cases we should treat the "val" or "addend" as zero since it
3274 will be added in as needed from fx_offset in tc_gen_reloc. */
3275 if ((fixP
->fx_addsy
!= NULL
3276 || fixP
->fx_r_type
== R_HPPA_NONE
)
3281 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3283 /* These field selectors imply that we do not want an addend. */
3284 else if (hppa_fixP
->fx_r_field
== e_psel
3285 || hppa_fixP
->fx_r_field
== e_rpsel
3286 || hppa_fixP
->fx_r_field
== e_lpsel
3287 || hppa_fixP
->fx_r_field
== e_tsel
3288 || hppa_fixP
->fx_r_field
== e_rtsel
3289 || hppa_fixP
->fx_r_field
== e_ltsel
)
3290 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3291 /* This is truely disgusting. The machine independent code blindly
3292 adds in the value of the symbol being relocated against. Damn! */
3294 && fixP
->fx_addsy
!= NULL
3295 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3296 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3297 0, hppa_fixP
->fx_r_field
);
3300 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3302 /* Handle pc-relative exceptions from above. */
3303 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3304 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3305 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3309 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3310 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3311 hppa_fixP
->fx_arg_reloc
)
3313 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3314 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3316 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3318 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3319 #undef arg_reloc_stub_needed
3323 /* Handle all opcodes with the 'j' operand type. */
3325 CHECK_FIELD (new_val
, 8191, -8192, 0);
3327 /* Mask off 14 bits to be changed. */
3328 bfd_put_32 (stdoutput
,
3329 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3331 low_sign_unext (new_val
, 14, &resulti
);
3335 /* Handle all opcodes with the 'k' operand type. */
3337 CHECK_FIELD (new_val
, 2097152, 0, 0);
3339 /* Mask off 21 bits to be changed. */
3340 bfd_put_32 (stdoutput
,
3341 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3343 dis_assemble_21 (new_val
, &resulti
);
3347 /* Handle all the opcodes with the 'i' operand type. */
3349 CHECK_FIELD (new_val
, 1023, -1023, 0);
3351 /* Mask off 11 bits to be changed. */
3352 bfd_put_32 (stdoutput
,
3353 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3355 low_sign_unext (new_val
, 11, &resulti
);
3359 /* Handle all the opcodes with the 'w' operand type. */
3361 CHECK_FIELD (new_val
, 8199, -8184, 0);
3363 /* Mask off 11 bits to be changed. */
3364 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3365 bfd_put_32 (stdoutput
,
3366 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3369 dis_assemble_12 (resulti
, &w1
, &w
);
3370 result
= ((w1
<< 2) | w
);
3373 /* Handle some of the opcodes with the 'W' operand type. */
3376 int distance
= *valp
;
3378 CHECK_FIELD (new_val
, 262143, -262144, 0);
3380 /* If this is an absolute branch (ie no link) with an out of
3381 range target, then we want to complain. */
3382 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3383 && (distance
> 262143 || distance
< -262144)
3384 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3385 CHECK_FIELD (distance
, 262143, -262144, 0);
3387 /* Mask off 17 bits to be changed. */
3388 bfd_put_32 (stdoutput
,
3389 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3391 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3392 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3393 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3399 bfd_put_32 (stdoutput
, new_val
, buf
);
3403 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3407 /* Insert the relocation. */
3408 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3413 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3414 (unsigned int) fixP
, fixP
->fx_r_type
);
3419 /* Exactly what point is a PC-relative offset relative TO?
3420 On the PA, they're relative to the address of the offset. */
3423 md_pcrel_from (fixP
)
3426 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3429 /* Return nonzero if the input line pointer is at the end of
3433 is_end_of_statement ()
3435 return ((*input_line_pointer
== '\n')
3436 || (*input_line_pointer
== ';')
3437 || (*input_line_pointer
== '!'));
3440 /* Read a number from S. The number might come in one of many forms,
3441 the most common will be a hex or decimal constant, but it could be
3442 a pre-defined register (Yuk!), or an absolute symbol.
3444 Return a number or -1 for failure.
3446 When parsing PA-89 FP register numbers RESULT will be
3447 the address of a structure to return information about
3448 L/R half of FP registers, store results there as appropriate.
3450 pa_parse_number can not handle negative constants and will fail
3451 horribly if it is passed such a constant. */
3454 pa_parse_number (s
, result
)
3456 struct pa_11_fp_reg_struct
*result
;
3465 /* Skip whitespace before the number. */
3466 while (*p
== ' ' || *p
== '\t')
3469 /* Store info in RESULT if requested by caller. */
3472 result
->number_part
= -1;
3473 result
->l_r_select
= -1;
3479 /* Looks like a number. */
3482 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3484 /* The number is specified in hex. */
3486 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3487 || ((*p
>= 'A') && (*p
<= 'F')))
3490 num
= num
* 16 + *p
- '0';
3491 else if (*p
>= 'a' && *p
<= 'f')
3492 num
= num
* 16 + *p
- 'a' + 10;
3494 num
= num
* 16 + *p
- 'A' + 10;
3500 /* The number is specified in decimal. */
3501 while (isdigit (*p
))
3503 num
= num
* 10 + *p
- '0';
3508 /* Store info in RESULT if requested by the caller. */
3511 result
->number_part
= num
;
3513 if (IS_R_SELECT (p
))
3515 result
->l_r_select
= 1;
3518 else if (IS_L_SELECT (p
))
3520 result
->l_r_select
= 0;
3524 result
->l_r_select
= 0;
3529 /* The number might be a predefined register. */
3534 /* Tege hack: Special case for general registers as the general
3535 code makes a binary search with case translation, and is VERY
3540 if (*p
== 'e' && *(p
+ 1) == 't'
3541 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3544 num
= *p
- '0' + 28;
3552 else if (!isdigit (*p
))
3555 as_bad (_("Undefined register: '%s'."), name
);
3561 num
= num
* 10 + *p
++ - '0';
3562 while (isdigit (*p
));
3567 /* Do a normal register search. */
3568 while (is_part_of_name (c
))
3574 status
= reg_name_search (name
);
3580 as_bad (_("Undefined register: '%s'."), name
);
3586 /* Store info in RESULT if requested by caller. */
3589 result
->number_part
= num
;
3590 if (IS_R_SELECT (p
- 1))
3591 result
->l_r_select
= 1;
3592 else if (IS_L_SELECT (p
- 1))
3593 result
->l_r_select
= 0;
3595 result
->l_r_select
= 0;
3600 /* And finally, it could be a symbol in the absolute section which
3601 is effectively a constant. */
3605 while (is_part_of_name (c
))
3611 if ((sym
= symbol_find (name
)) != NULL
)
3613 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3614 num
= S_GET_VALUE (sym
);
3618 as_bad (_("Non-absolute symbol: '%s'."), name
);
3624 /* There is where we'd come for an undefined symbol
3625 or for an empty string. For an empty string we
3626 will return zero. That's a concession made for
3627 compatability with the braindamaged HP assemblers. */
3633 as_bad (_("Undefined absolute constant: '%s'."), name
);
3639 /* Store info in RESULT if requested by caller. */
3642 result
->number_part
= num
;
3643 if (IS_R_SELECT (p
- 1))
3644 result
->l_r_select
= 1;
3645 else if (IS_L_SELECT (p
- 1))
3646 result
->l_r_select
= 0;
3648 result
->l_r_select
= 0;
3656 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3658 /* Given NAME, find the register number associated with that name, return
3659 the integer value associated with the given name or -1 on failure. */
3662 reg_name_search (name
)
3665 int middle
, low
, high
;
3669 high
= REG_NAME_CNT
- 1;
3673 middle
= (low
+ high
) / 2;
3674 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
3680 return pre_defined_registers
[middle
].value
;
3682 while (low
<= high
);
3688 /* Return nonzero if the given INSN and L/R information will require
3689 a new PA-1.1 opcode. */
3692 need_pa11_opcode (insn
, result
)
3694 struct pa_11_fp_reg_struct
*result
;
3696 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
3698 /* If this instruction is specific to a particular architecture,
3699 then set a new architecture. */
3700 if (bfd_get_mach (stdoutput
) < pa11
)
3702 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
3703 as_warn (_("could not update architecture and machine"));
3711 /* Parse a condition for a fcmp instruction. Return the numerical
3712 code associated with the condition. */
3715 pa_parse_fp_cmp_cond (s
)
3722 for (i
= 0; i
< 32; i
++)
3724 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
3725 strlen (fp_cond_map
[i
].string
)) == 0)
3727 cond
= fp_cond_map
[i
].cond
;
3728 *s
+= strlen (fp_cond_map
[i
].string
);
3729 /* If not a complete match, back up the input string and
3731 if (**s
!= ' ' && **s
!= '\t')
3733 *s
-= strlen (fp_cond_map
[i
].string
);
3736 while (**s
== ' ' || **s
== '\t')
3742 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
3744 /* Advance over the bogus completer. */
3745 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3752 /* Parse an FP operand format completer returning the completer
3755 static fp_operand_format
3756 pa_parse_fp_format (s
)
3765 if (strncasecmp (*s
, "sgl", 3) == 0)
3770 else if (strncasecmp (*s
, "dbl", 3) == 0)
3775 else if (strncasecmp (*s
, "quad", 4) == 0)
3782 format
= ILLEGAL_FMT
;
3783 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
3790 /* Convert from a selector string into a selector type. */
3793 pa_chk_field_selector (str
)
3796 int middle
, low
, high
;
3800 /* Read past any whitespace. */
3801 /* FIXME: should we read past newlines and formfeeds??? */
3802 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
3805 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
3806 name
[0] = tolower ((*str
)[0]),
3808 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
3809 name
[0] = tolower ((*str
)[0]),
3810 name
[1] = tolower ((*str
)[1]),
3812 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
3813 name
[0] = tolower ((*str
)[0]),
3814 name
[1] = tolower ((*str
)[1]),
3815 name
[2] = tolower ((*str
)[2]),
3821 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
3825 middle
= (low
+ high
) / 2;
3826 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
3833 *str
+= strlen (name
) + 1;
3835 if (selector_table
[middle
].field_selector
== e_nsel
)
3838 return selector_table
[middle
].field_selector
;
3841 while (low
<= high
);
3846 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
3849 get_expression (str
)
3855 save_in
= input_line_pointer
;
3856 input_line_pointer
= str
;
3857 seg
= expression (&the_insn
.exp
);
3858 if (!(seg
== absolute_section
3859 || seg
== undefined_section
3860 || SEG_NORMAL (seg
)))
3862 as_warn (_("Bad segment in expression."));
3863 expr_end
= input_line_pointer
;
3864 input_line_pointer
= save_in
;
3867 expr_end
= input_line_pointer
;
3868 input_line_pointer
= save_in
;
3872 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
3874 pa_get_absolute_expression (insn
, strp
)
3880 insn
->field_selector
= pa_chk_field_selector (strp
);
3881 save_in
= input_line_pointer
;
3882 input_line_pointer
= *strp
;
3883 expression (&insn
->exp
);
3884 /* This is not perfect, but is a huge improvement over doing nothing.
3886 The PA assembly syntax is ambigious in a variety of ways. Consider
3887 this string "4 %r5" Is that the number 4 followed by the register
3888 r5, or is that 4 MOD 5?
3890 If we get a modulo expresion When looking for an absolute, we try
3891 again cutting off the input string at the first whitespace character. */
3892 if (insn
->exp
.X_op
== O_modulus
)
3897 input_line_pointer
= *strp
;
3899 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
3905 retval
= pa_get_absolute_expression (insn
, strp
);
3907 input_line_pointer
= save_in
;
3909 return evaluate_absolute (insn
);
3911 if (insn
->exp
.X_op
!= O_constant
)
3913 as_bad (_("Bad segment (should be absolute)."));
3914 expr_end
= input_line_pointer
;
3915 input_line_pointer
= save_in
;
3918 expr_end
= input_line_pointer
;
3919 input_line_pointer
= save_in
;
3920 return evaluate_absolute (insn
);
3923 /* Evaluate an absolute expression EXP which may be modified by
3924 the selector FIELD_SELECTOR. Return the value of the expression. */
3926 evaluate_absolute (insn
)
3931 int field_selector
= insn
->field_selector
;
3934 value
= exp
.X_add_number
;
3936 switch (field_selector
)
3942 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3944 if (value
& 0x00000400)
3946 value
= (value
& 0xfffff800) >> 11;
3949 /* Sign extend from bit 21. */
3951 if (value
& 0x00000400)
3952 value
|= 0xfffff800;
3957 /* Arithmetic shift right 11 bits. */
3959 value
= (value
& 0xfffff800) >> 11;
3962 /* Set bits 0-20 to zero. */
3964 value
= value
& 0x7ff;
3967 /* Add 0x800 and arithmetic shift right 11 bits. */
3970 value
= (value
& 0xfffff800) >> 11;
3973 /* Set bitgs 0-21 to one. */
3975 value
|= 0xfffff800;
3978 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
3980 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
3984 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
3989 BAD_CASE (field_selector
);
3995 /* Given an argument location specification return the associated
3996 argument location number. */
3999 pa_build_arg_reloc (type_name
)
4003 if (strncasecmp (type_name
, "no", 2) == 0)
4005 if (strncasecmp (type_name
, "gr", 2) == 0)
4007 else if (strncasecmp (type_name
, "fr", 2) == 0)
4009 else if (strncasecmp (type_name
, "fu", 2) == 0)
4012 as_bad (_("Invalid argument location: %s\n"), type_name
);
4017 /* Encode and return an argument relocation specification for
4018 the given register in the location specified by arg_reloc. */
4021 pa_align_arg_reloc (reg
, arg_reloc
)
4023 unsigned int arg_reloc
;
4025 unsigned int new_reloc
;
4027 new_reloc
= arg_reloc
;
4043 as_bad (_("Invalid argument description: %d"), reg
);
4049 /* Parse a PA nullification completer (,n). Return nonzero if the
4050 completer was found; return zero if no completer was found. */
4062 if (strncasecmp (*s
, "n", 1) == 0)
4066 as_bad (_("Invalid Nullification: (%c)"), **s
);
4075 /* Parse a non-negated compare/subtract completer returning the
4076 number (for encoding in instrutions) of the given completer.
4078 ISBRANCH specifies whether or not this is parsing a condition
4079 completer for a branch (vs a nullification completer for a
4080 computational instruction. */
4083 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4088 char *name
= *s
+ 1;
4097 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4103 if (strcmp (name
, "=") == 0)
4107 else if (strcmp (name
, "<") == 0)
4111 else if (strcmp (name
, "<=") == 0)
4115 else if (strcmp (name
, "<<") == 0)
4119 else if (strcmp (name
, "<<=") == 0)
4123 else if (strcasecmp (name
, "sv") == 0)
4127 else if (strcasecmp (name
, "od") == 0)
4131 /* If we have something like addb,n then there is no condition
4133 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4145 /* Reset pointers if this was really a ,n for a branch instruction. */
4153 /* Parse a negated compare/subtract completer returning the
4154 number (for encoding in instrutions) of the given completer.
4156 ISBRANCH specifies whether or not this is parsing a condition
4157 completer for a branch (vs a nullification completer for a
4158 computational instruction. */
4161 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4166 char *name
= *s
+ 1;
4175 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4181 if (strcasecmp (name
, "tr") == 0)
4185 else if (strcmp (name
, "<>") == 0)
4189 else if (strcmp (name
, ">=") == 0)
4193 else if (strcmp (name
, ">") == 0)
4197 else if (strcmp (name
, ">>=") == 0)
4201 else if (strcmp (name
, ">>") == 0)
4205 else if (strcasecmp (name
, "nsv") == 0)
4209 else if (strcasecmp (name
, "ev") == 0)
4213 /* If we have something like addb,n then there is no condition
4215 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4227 /* Reset pointers if this was really a ,n for a branch instruction. */
4236 /* Parse a non-negated addition completer returning the number
4237 (for encoding in instrutions) of the given completer.
4239 ISBRANCH specifies whether or not this is parsing a condition
4240 completer for a branch (vs a nullification completer for a
4241 computational instruction. */
4244 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4249 char *name
= *s
+ 1;
4257 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4261 if (strcmp (name
, "=") == 0)
4265 else if (strcmp (name
, "<") == 0)
4269 else if (strcmp (name
, "<=") == 0)
4273 else if (strcasecmp (name
, "nuv") == 0)
4277 else if (strcasecmp (name
, "znv") == 0)
4281 else if (strcasecmp (name
, "sv") == 0)
4285 else if (strcasecmp (name
, "od") == 0)
4289 /* If we have something like addb,n then there is no condition
4291 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4302 /* Reset pointers if this was really a ,n for a branch instruction. */
4303 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4309 /* Parse a negated addition completer returning the number
4310 (for encoding in instrutions) of the given completer.
4312 ISBRANCH specifies whether or not this is parsing a condition
4313 completer for a branch (vs a nullification completer for a
4314 computational instruction). */
4317 pa_parse_neg_add_cmpltr (s
, isbranch
)
4322 char *name
= *s
+ 1;
4330 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4334 if (strcasecmp (name
, "tr") == 0)
4338 else if (strcmp (name
, "<>") == 0)
4342 else if (strcmp (name
, ">=") == 0)
4346 else if (strcmp (name
, ">") == 0)
4350 else if (strcasecmp (name
, "uv") == 0)
4354 else if (strcasecmp (name
, "vnz") == 0)
4358 else if (strcasecmp (name
, "nsv") == 0)
4362 else if (strcasecmp (name
, "ev") == 0)
4366 /* If we have something like addb,n then there is no condition
4368 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4379 /* Reset pointers if this was really a ,n for a branch instruction. */
4380 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4387 /* Handle an alignment directive. Special so that we can update the
4388 alignment of the subspace if necessary. */
4392 /* We must have a valid space and subspace. */
4393 pa_check_current_space_and_subspace ();
4395 /* Let the generic gas code do most of the work. */
4396 s_align_bytes (bytes
);
4398 /* If bytes is a power of 2, then update the current subspace's
4399 alignment if necessary. */
4400 if (log2 (bytes
) != -1)
4401 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4405 /* Handle a .BLOCK type pseudo-op. */
4413 unsigned int temp_size
;
4417 /* We must have a valid space and subspace. */
4418 pa_check_current_space_and_subspace ();
4421 temp_size
= get_absolute_expression ();
4423 /* Always fill with zeros, that's what the HP assembler does. */
4426 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4427 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4428 memset (p
, 0, temp_size
);
4430 /* Convert 2 bytes at a time. */
4432 for (i
= 0; i
< temp_size
; i
+= 2)
4434 md_number_to_chars (p
+ i
,
4436 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4439 pa_undefine_label ();
4440 demand_empty_rest_of_line ();
4443 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4451 /* The BRTAB relocations are only availble in SOM (to denote
4452 the beginning and end of branch tables). */
4453 char *where
= frag_more (0);
4455 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4456 NULL
, (offsetT
) 0, NULL
,
4457 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4458 e_fsel
, 0, 0, NULL
);
4461 demand_empty_rest_of_line ();
4464 /* Handle a .begin_try and .end_try pseudo-op. */
4472 char *where
= frag_more (0);
4477 /* The TRY relocations are only availble in SOM (to denote
4478 the beginning and end of exception handling regions). */
4480 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4481 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4482 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4483 e_fsel
, 0, 0, NULL
);
4486 demand_empty_rest_of_line ();
4489 /* Handle a .CALL pseudo-op. This involves storing away information
4490 about where arguments are to be found so the linker can detect
4491 (and correct) argument location mismatches between caller and callee. */
4498 /* We must have a valid space and subspace. */
4499 pa_check_current_space_and_subspace ();
4502 pa_call_args (&last_call_desc
);
4503 demand_empty_rest_of_line ();
4506 /* Do the dirty work of building a call descriptor which describes
4507 where the caller placed arguments to a function call. */
4510 pa_call_args (call_desc
)
4511 struct call_desc
*call_desc
;
4514 unsigned int temp
, arg_reloc
;
4516 while (!is_end_of_statement ())
4518 name
= input_line_pointer
;
4519 c
= get_symbol_end ();
4520 /* Process a source argument. */
4521 if ((strncasecmp (name
, "argw", 4) == 0))
4523 temp
= atoi (name
+ 4);
4524 p
= input_line_pointer
;
4526 input_line_pointer
++;
4527 name
= input_line_pointer
;
4528 c
= get_symbol_end ();
4529 arg_reloc
= pa_build_arg_reloc (name
);
4530 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4532 /* Process a return value. */
4533 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4535 p
= input_line_pointer
;
4537 input_line_pointer
++;
4538 name
= input_line_pointer
;
4539 c
= get_symbol_end ();
4540 arg_reloc
= pa_build_arg_reloc (name
);
4541 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4545 as_bad (_("Invalid .CALL argument: %s"), name
);
4547 p
= input_line_pointer
;
4549 if (!is_end_of_statement ())
4550 input_line_pointer
++;
4554 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4557 is_same_frag (frag1
, frag2
)
4564 else if (frag2
== NULL
)
4566 else if (frag1
== frag2
)
4568 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4569 return (is_same_frag (frag1
, frag2
->fr_next
));
4575 /* Build an entry in the UNWIND subspace from the given function
4576 attributes in CALL_INFO. This is not needed for SOM as using
4577 R_ENTRY and R_EXIT relocations allow the linker to handle building
4578 of the unwind spaces. */
4581 pa_build_unwind_subspace (call_info
)
4582 struct call_info
*call_info
;
4585 asection
*seg
, *save_seg
;
4587 subsegT subseg
, save_subseg
;
4591 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
4592 reloc
= R_PARISC_DIR32
;
4594 reloc
= R_PARISC_SEGREL32
;
4596 /* Get into the right seg/subseg. This may involve creating
4597 the seg the first time through. Make sure to have the
4598 old seg/subseg so that we can reset things when we are done. */
4599 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4600 if (seg
== ASEC_NULL
)
4602 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4603 bfd_set_section_flags (stdoutput
, seg
,
4604 SEC_READONLY
| SEC_HAS_CONTENTS
4605 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
4606 bfd_set_section_alignment (stdoutput
, seg
, 2);
4610 save_subseg
= now_subseg
;
4611 subseg_set (seg
, 0);
4614 /* Get some space to hold relocation information for the unwind
4617 md_number_to_chars (p
, 0, 4);
4619 /* Relocation info. for start offset of the function. */
4620 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4621 call_info
->start_symbol
, (offsetT
) 0,
4622 (expressionS
*) NULL
, 0, reloc
,
4623 e_fsel
, 32, 0, NULL
);
4626 md_number_to_chars (p
, 0, 4);
4628 /* Relocation info. for end offset of the function.
4630 Because we allow reductions of 32bit relocations for ELF, this will be
4631 reduced to section_sym + offset which avoids putting the temporary
4632 symbol into the symbol table. It (should) end up giving the same
4633 value as call_info->start_symbol + function size once the linker is
4634 finished with its work. */
4636 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4637 call_info
->end_symbol
, (offsetT
) 0,
4638 (expressionS
*) NULL
, 0, reloc
,
4639 e_fsel
, 32, 0, NULL
);
4642 unwind
= (char *) &call_info
->ci_unwind
;
4643 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4647 FRAG_APPEND_1_CHAR (c
);
4651 /* Return back to the original segment/subsegment. */
4652 subseg_set (save_seg
, save_subseg
);
4656 /* Process a .CALLINFO pseudo-op. This information is used later
4657 to build unwind descriptors and maybe one day to support
4658 .ENTER and .LEAVE. */
4661 pa_callinfo (unused
)
4668 /* We must have a valid space and subspace. */
4669 pa_check_current_space_and_subspace ();
4672 /* .CALLINFO must appear within a procedure definition. */
4673 if (!within_procedure
)
4674 as_bad (_(".callinfo is not within a procedure definition"));
4676 /* Mark the fact that we found the .CALLINFO for the
4677 current procedure. */
4678 callinfo_found
= TRUE
;
4680 /* Iterate over the .CALLINFO arguments. */
4681 while (!is_end_of_statement ())
4683 name
= input_line_pointer
;
4684 c
= get_symbol_end ();
4685 /* Frame size specification. */
4686 if ((strncasecmp (name
, "frame", 5) == 0))
4688 p
= input_line_pointer
;
4690 input_line_pointer
++;
4691 temp
= get_absolute_expression ();
4692 if ((temp
& 0x3) != 0)
4694 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
4698 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
4699 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
4702 /* Entry register (GR, GR and SR) specifications. */
4703 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
4705 p
= input_line_pointer
;
4707 input_line_pointer
++;
4708 temp
= get_absolute_expression ();
4709 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4710 even though %r19 is caller saved. I think this is a bug in
4711 the HP assembler, and we are not going to emulate it. */
4712 if (temp
< 3 || temp
> 18)
4713 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
4714 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
4716 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
4718 p
= input_line_pointer
;
4720 input_line_pointer
++;
4721 temp
= get_absolute_expression ();
4722 /* Similarly the HP assembler takes 31 as the high bound even
4723 though %fr21 is the last callee saved floating point register. */
4724 if (temp
< 12 || temp
> 21)
4725 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
4726 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
4728 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
4730 p
= input_line_pointer
;
4732 input_line_pointer
++;
4733 temp
= get_absolute_expression ();
4735 as_bad (_("Value for ENTRY_SR must be 3\n"));
4737 /* Note whether or not this function performs any calls. */
4738 else if ((strncasecmp (name
, "calls", 5) == 0) ||
4739 (strncasecmp (name
, "caller", 6) == 0))
4741 p
= input_line_pointer
;
4744 else if ((strncasecmp (name
, "no_calls", 8) == 0))
4746 p
= input_line_pointer
;
4749 /* Should RP be saved into the stack. */
4750 else if ((strncasecmp (name
, "save_rp", 7) == 0))
4752 p
= input_line_pointer
;
4754 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
4756 /* Likewise for SP. */
4757 else if ((strncasecmp (name
, "save_sp", 7) == 0))
4759 p
= input_line_pointer
;
4761 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
4763 /* Is this an unwindable procedure. If so mark it so
4764 in the unwind descriptor. */
4765 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
4767 p
= input_line_pointer
;
4769 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
4771 /* Is this an interrupt routine. If so mark it in the
4772 unwind descriptor. */
4773 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
4775 p
= input_line_pointer
;
4777 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
4779 /* Is this a millicode routine. "millicode" isn't in my
4780 assembler manual, but my copy is old. The HP assembler
4781 accepts it, and there's a place in the unwind descriptor
4782 to drop the information, so we'll accept it too. */
4783 else if ((strncasecmp (name
, "millicode", 9) == 0))
4785 p
= input_line_pointer
;
4787 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
4791 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
4792 *input_line_pointer
= c
;
4794 if (!is_end_of_statement ())
4795 input_line_pointer
++;
4798 demand_empty_rest_of_line ();
4801 /* Switch into the code subspace. */
4808 current_space
= is_defined_space ("$TEXT$");
4810 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
4813 pa_undefine_label ();
4816 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4817 the .comm pseudo-op has the following symtax:
4819 <label> .comm <length>
4821 where <label> is optional and is a symbol whose address will be the start of
4822 a block of memory <length> bytes long. <length> must be an absolute
4823 expression. <length> bytes will be allocated in the current space
4826 Also note the label may not even be on the same line as the .comm.
4828 This difference in syntax means the colon function will be called
4829 on the symbol before we arrive in pa_comm. colon will set a number
4830 of attributes of the symbol that need to be fixed here. In particular
4831 the value, section pointer, fragment pointer, flags, etc. What
4834 This also makes error detection all but impossible. */
4842 label_symbol_struct
*label_symbol
= pa_get_label ();
4845 symbol
= label_symbol
->lss_label
;
4850 size
= get_absolute_expression ();
4854 S_SET_VALUE (symbol
, size
);
4855 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
4856 S_SET_EXTERNAL (symbol
);
4858 /* colon() has already set the frag to the current location in the
4859 current subspace; we need to reset the fragment to the zero address
4860 fragment. We also need to reset the segment pointer. */
4861 symbol_set_frag (symbol
, &zero_address_frag
);
4863 demand_empty_rest_of_line ();
4866 /* Process a .END pseudo-op. */
4872 demand_empty_rest_of_line ();
4875 /* Process a .ENTER pseudo-op. This is not supported. */
4881 /* We must have a valid space and subspace. */
4882 pa_check_current_space_and_subspace ();
4885 as_bad (_("The .ENTER pseudo-op is not supported"));
4886 demand_empty_rest_of_line ();
4889 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4896 /* We must have a valid space and subspace. */
4897 pa_check_current_space_and_subspace ();
4900 if (!within_procedure
)
4901 as_bad (_("Misplaced .entry. Ignored."));
4904 if (!callinfo_found
)
4905 as_bad (_("Missing .callinfo."));
4907 demand_empty_rest_of_line ();
4908 within_entry_exit
= TRUE
;
4911 /* SOM defers building of unwind descriptors until the link phase.
4912 The assembler is responsible for creating an R_ENTRY relocation
4913 to mark the beginning of a region and hold the unwind bits, and
4914 for creating an R_EXIT relocation to mark the end of the region.
4916 FIXME. ELF should be using the same conventions! The problem
4917 is an unwind requires too much relocation space. Hmmm. Maybe
4918 if we split the unwind bits up between the relocations which
4919 denote the entry and exit points. */
4920 if (last_call_info
->start_symbol
!= NULL
)
4922 char *where
= frag_more (0);
4924 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4925 NULL
, (offsetT
) 0, NULL
,
4926 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
4927 (int *) &last_call_info
->ci_unwind
.descriptor
);
4932 /* Handle a .EQU pseudo-op. */
4938 label_symbol_struct
*label_symbol
= pa_get_label ();
4943 symbol
= label_symbol
->lss_label
;
4945 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
4947 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
4948 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
4953 as_bad (_(".REG must use a label"));
4955 as_bad (_(".EQU must use a label"));
4958 pa_undefine_label ();
4959 demand_empty_rest_of_line ();
4962 /* Helper function. Does processing for the end of a function. This
4963 usually involves creating some relocations or building special
4964 symbols to mark the end of the function. */
4971 where
= frag_more (0);
4974 /* Mark the end of the function, stuff away the location of the frag
4975 for the end of the function, and finally call pa_build_unwind_subspace
4976 to add an entry in the unwind table. */
4977 hppa_elf_mark_end_of_function ();
4978 pa_build_unwind_subspace (last_call_info
);
4980 /* SOM defers building of unwind descriptors until the link phase.
4981 The assembler is responsible for creating an R_ENTRY relocation
4982 to mark the beginning of a region and hold the unwind bits, and
4983 for creating an R_EXIT relocation to mark the end of the region.
4985 FIXME. ELF should be using the same conventions! The problem
4986 is an unwind requires too much relocation space. Hmmm. Maybe
4987 if we split the unwind bits up between the relocations which
4988 denote the entry and exit points. */
4989 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4991 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
4992 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
4996 /* Process a .EXIT pseudo-op. */
5003 /* We must have a valid space and subspace. */
5004 pa_check_current_space_and_subspace ();
5007 if (!within_procedure
)
5008 as_bad (_(".EXIT must appear within a procedure"));
5011 if (!callinfo_found
)
5012 as_bad (_("Missing .callinfo"));
5015 if (!within_entry_exit
)
5016 as_bad (_("No .ENTRY for this .EXIT"));
5019 within_entry_exit
= FALSE
;
5024 demand_empty_rest_of_line ();
5027 /* Process a .EXPORT directive. This makes functions external
5028 and provides information such as argument relocation entries
5038 name
= input_line_pointer
;
5039 c
= get_symbol_end ();
5040 /* Make sure the given symbol exists. */
5041 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5043 as_bad (_("Cannot define export symbol: %s\n"), name
);
5044 p
= input_line_pointer
;
5046 input_line_pointer
++;
5050 /* OK. Set the external bits and process argument relocations. */
5051 S_SET_EXTERNAL (symbol
);
5052 p
= input_line_pointer
;
5054 if (!is_end_of_statement ())
5056 input_line_pointer
++;
5057 pa_type_args (symbol
, 1);
5061 demand_empty_rest_of_line ();
5064 /* Helper function to process arguments to a .EXPORT pseudo-op. */
5067 pa_type_args (symbolP
, is_export
)
5072 unsigned int temp
, arg_reloc
;
5073 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5074 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5076 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5079 input_line_pointer
+= 8;
5080 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5081 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5082 type
= SYMBOL_TYPE_ABSOLUTE
;
5084 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5086 input_line_pointer
+= 4;
5087 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5088 instead one should be IMPORTing/EXPORTing ENTRY types.
5090 Complain if one tries to EXPORT a CODE type since that's never
5091 done. Both GCC and HP C still try to IMPORT CODE types, so
5092 silently fix them to be ENTRY types. */
5093 if (S_IS_FUNCTION (symbolP
))
5096 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5097 S_GET_NAME (symbolP
));
5099 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5100 type
= SYMBOL_TYPE_ENTRY
;
5104 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5105 type
= SYMBOL_TYPE_CODE
;
5108 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5110 input_line_pointer
+= 4;
5111 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5112 type
= SYMBOL_TYPE_DATA
;
5114 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5116 input_line_pointer
+= 5;
5117 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5118 type
= SYMBOL_TYPE_ENTRY
;
5120 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5122 input_line_pointer
+= 9;
5123 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5124 type
= SYMBOL_TYPE_MILLICODE
;
5126 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5128 input_line_pointer
+= 6;
5129 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5130 type
= SYMBOL_TYPE_PLABEL
;
5132 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5134 input_line_pointer
+= 8;
5135 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5136 type
= SYMBOL_TYPE_PRI_PROG
;
5138 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5140 input_line_pointer
+= 8;
5141 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5142 type
= SYMBOL_TYPE_SEC_PROG
;
5145 /* SOM requires much more information about symbol types
5146 than BFD understands. This is how we get this information
5147 to the SOM BFD backend. */
5148 #ifdef obj_set_symbol_type
5149 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5152 /* Now that the type of the exported symbol has been handled,
5153 handle any argument relocation information. */
5154 while (!is_end_of_statement ())
5156 if (*input_line_pointer
== ',')
5157 input_line_pointer
++;
5158 name
= input_line_pointer
;
5159 c
= get_symbol_end ();
5160 /* Argument sources. */
5161 if ((strncasecmp (name
, "argw", 4) == 0))
5163 p
= input_line_pointer
;
5165 input_line_pointer
++;
5166 temp
= atoi (name
+ 4);
5167 name
= input_line_pointer
;
5168 c
= get_symbol_end ();
5169 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5171 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5173 *input_line_pointer
= c
;
5175 /* The return value. */
5176 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5178 p
= input_line_pointer
;
5180 input_line_pointer
++;
5181 name
= input_line_pointer
;
5182 c
= get_symbol_end ();
5183 arg_reloc
= pa_build_arg_reloc (name
);
5185 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5187 *input_line_pointer
= c
;
5189 /* Privelege level. */
5190 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5192 p
= input_line_pointer
;
5194 input_line_pointer
++;
5195 temp
= atoi (input_line_pointer
);
5197 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5199 c
= get_symbol_end ();
5200 *input_line_pointer
= c
;
5204 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5205 p
= input_line_pointer
;
5208 if (!is_end_of_statement ())
5209 input_line_pointer
++;
5213 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5214 assembly file must either be defined in the assembly file, or
5215 explicitly IMPORTED from another. */
5224 name
= input_line_pointer
;
5225 c
= get_symbol_end ();
5227 symbol
= symbol_find (name
);
5228 /* Ugh. We might be importing a symbol defined earlier in the file,
5229 in which case all the code below will really screw things up
5230 (set the wrong segment, symbol flags & type, etc). */
5231 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5233 symbol
= symbol_find_or_make (name
);
5234 p
= input_line_pointer
;
5237 if (!is_end_of_statement ())
5239 input_line_pointer
++;
5240 pa_type_args (symbol
, 0);
5244 /* Sigh. To be compatable with the HP assembler and to help
5245 poorly written assembly code, we assign a type based on
5246 the the current segment. Note only BSF_FUNCTION really
5247 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5248 if (now_seg
== text_section
)
5249 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5251 /* If the section is undefined, then the symbol is undefined
5252 Since this is an import, leave the section undefined. */
5253 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5258 /* The symbol was already defined. Just eat everything up to
5259 the end of the current statement. */
5260 while (!is_end_of_statement ())
5261 input_line_pointer
++;
5264 demand_empty_rest_of_line ();
5267 /* Handle a .LABEL pseudo-op. */
5275 name
= input_line_pointer
;
5276 c
= get_symbol_end ();
5278 if (strlen (name
) > 0)
5281 p
= input_line_pointer
;
5286 as_warn (_("Missing label name on .LABEL"));
5289 if (!is_end_of_statement ())
5291 as_warn (_("extra .LABEL arguments ignored."));
5292 ignore_rest_of_line ();
5294 demand_empty_rest_of_line ();
5297 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5304 /* We must have a valid space and subspace. */
5305 pa_check_current_space_and_subspace ();
5308 as_bad (_("The .LEAVE pseudo-op is not supported"));
5309 demand_empty_rest_of_line ();
5312 /* Handle a .LEVEL pseudo-op. */
5320 level
= input_line_pointer
;
5321 if (strncmp (level
, "1.0", 3) == 0)
5323 input_line_pointer
+= 3;
5324 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5325 as_warn (_("could not set architecture and machine"));
5327 else if (strncmp (level
, "1.1", 3) == 0)
5329 input_line_pointer
+= 3;
5330 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5331 as_warn (_("could not set architecture and machine"));
5333 else if (strncmp (level
, "2.0w", 4) == 0)
5335 input_line_pointer
+= 4;
5336 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5337 as_warn (_("could not set architecture and machine"));
5339 else if (strncmp (level
, "2.0", 3) == 0)
5341 input_line_pointer
+= 3;
5342 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5343 as_warn (_("could not set architecture and machine"));
5347 as_bad (_("Unrecognized .LEVEL argument\n"));
5348 ignore_rest_of_line ();
5350 demand_empty_rest_of_line ();
5353 /* Handle a .ORIGIN pseudo-op. */
5360 /* We must have a valid space and subspace. */
5361 pa_check_current_space_and_subspace ();
5365 pa_undefine_label ();
5368 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5369 is for static functions. FIXME. Should share more code with .EXPORT. */
5378 name
= input_line_pointer
;
5379 c
= get_symbol_end ();
5381 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5383 as_bad (_("Cannot define static symbol: %s\n"), name
);
5384 p
= input_line_pointer
;
5386 input_line_pointer
++;
5390 S_CLEAR_EXTERNAL (symbol
);
5391 p
= input_line_pointer
;
5393 if (!is_end_of_statement ())
5395 input_line_pointer
++;
5396 pa_type_args (symbol
, 0);
5400 demand_empty_rest_of_line ();
5403 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5404 of a procedure from a syntatical point of view. */
5410 struct call_info
*call_info
;
5413 /* We must have a valid space and subspace. */
5414 pa_check_current_space_and_subspace ();
5417 if (within_procedure
)
5418 as_fatal (_("Nested procedures"));
5420 /* Reset global variables for new procedure. */
5421 callinfo_found
= FALSE
;
5422 within_procedure
= TRUE
;
5424 /* Create another call_info structure. */
5425 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5428 as_fatal (_("Cannot allocate unwind descriptor\n"));
5430 memset (call_info
, 0, sizeof (struct call_info
));
5432 call_info
->ci_next
= NULL
;
5434 if (call_info_root
== NULL
)
5436 call_info_root
= call_info
;
5437 last_call_info
= call_info
;
5441 last_call_info
->ci_next
= call_info
;
5442 last_call_info
= call_info
;
5445 /* set up defaults on call_info structure */
5447 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5448 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5449 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5451 /* If we got a .PROC pseudo-op, we know that the function is defined
5452 locally. Make sure it gets into the symbol table. */
5454 label_symbol_struct
*label_symbol
= pa_get_label ();
5458 if (label_symbol
->lss_label
)
5460 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5461 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5464 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5467 last_call_info
->start_symbol
= NULL
;
5470 demand_empty_rest_of_line ();
5473 /* Process the syntatical end of a procedure. Make sure all the
5474 appropriate pseudo-ops were found within the procedure. */
5482 /* We must have a valid space and subspace. */
5483 pa_check_current_space_and_subspace ();
5486 /* If we are within a procedure definition, make sure we've
5487 defined a label for the procedure; handle case where the
5488 label was defined after the .PROC directive.
5490 Note there's not need to diddle with the segment or fragment
5491 for the label symbol in this case. We have already switched
5492 into the new $CODE$ subspace at this point. */
5493 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5495 label_symbol_struct
*label_symbol
= pa_get_label ();
5499 if (label_symbol
->lss_label
)
5501 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5502 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5505 /* Also handle allocation of a fixup to hold the unwind
5506 information when the label appears after the proc/procend. */
5507 if (within_entry_exit
)
5509 char *where
= frag_more (0);
5511 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5512 NULL
, (offsetT
) 0, NULL
,
5513 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5514 (int *) &last_call_info
->ci_unwind
.descriptor
);
5519 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5522 as_bad (_("Missing function name for .PROC"));
5525 if (!within_procedure
)
5526 as_bad (_("misplaced .procend"));
5528 if (!callinfo_found
)
5529 as_bad (_("Missing .callinfo for this procedure"));
5531 if (within_entry_exit
)
5532 as_bad (_("Missing .EXIT for a .ENTRY"));
5535 /* ELF needs to mark the end of each function so that it can compute
5536 the size of the function (apparently its needed in the symbol table). */
5537 hppa_elf_mark_end_of_function ();
5540 within_procedure
= FALSE
;
5541 demand_empty_rest_of_line ();
5542 pa_undefine_label ();
5545 /* If VALUE is an exact power of two between zero and 2^31, then
5546 return log2 (VALUE). Else return -1. */
5554 while ((1 << shift
) != value
&& shift
< 32)
5565 /* Check to make sure we have a valid space and subspace. */
5568 pa_check_current_space_and_subspace ()
5570 if (current_space
== NULL
)
5571 as_fatal (_("Not in a space.\n"));
5573 if (current_subspace
== NULL
)
5574 as_fatal (_("Not in a subspace.\n"));
5577 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5578 then create a new space entry to hold the information specified
5579 by the parameters to the .SPACE directive. */
5581 static sd_chain_struct
*
5582 pa_parse_space_stmt (space_name
, create_flag
)
5586 char *name
, *ptemp
, c
;
5587 char loadable
, defined
, private, sort
;
5589 asection
*seg
= NULL
;
5590 sd_chain_struct
*space
;
5592 /* load default values */
5598 if (strcmp (space_name
, "$TEXT$") == 0)
5600 seg
= pa_def_spaces
[0].segment
;
5601 defined
= pa_def_spaces
[0].defined
;
5602 private = pa_def_spaces
[0].private;
5603 sort
= pa_def_spaces
[0].sort
;
5604 spnum
= pa_def_spaces
[0].spnum
;
5606 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5608 seg
= pa_def_spaces
[1].segment
;
5609 defined
= pa_def_spaces
[1].defined
;
5610 private = pa_def_spaces
[1].private;
5611 sort
= pa_def_spaces
[1].sort
;
5612 spnum
= pa_def_spaces
[1].spnum
;
5615 if (!is_end_of_statement ())
5617 print_errors
= FALSE
;
5618 ptemp
= input_line_pointer
+ 1;
5619 /* First see if the space was specified as a number rather than
5620 as a name. According to the PA assembly manual the rest of
5621 the line should be ignored. */
5622 temp
= pa_parse_number (&ptemp
, 0);
5626 input_line_pointer
= ptemp
;
5630 while (!is_end_of_statement ())
5632 input_line_pointer
++;
5633 name
= input_line_pointer
;
5634 c
= get_symbol_end ();
5635 if ((strncasecmp (name
, "spnum", 5) == 0))
5637 *input_line_pointer
= c
;
5638 input_line_pointer
++;
5639 spnum
= get_absolute_expression ();
5641 else if ((strncasecmp (name
, "sort", 4) == 0))
5643 *input_line_pointer
= c
;
5644 input_line_pointer
++;
5645 sort
= get_absolute_expression ();
5647 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5649 *input_line_pointer
= c
;
5652 else if ((strncasecmp (name
, "notdefined", 10) == 0))
5654 *input_line_pointer
= c
;
5657 else if ((strncasecmp (name
, "private", 7) == 0))
5659 *input_line_pointer
= c
;
5664 as_bad (_("Invalid .SPACE argument"));
5665 *input_line_pointer
= c
;
5666 if (!is_end_of_statement ())
5667 input_line_pointer
++;
5671 print_errors
= TRUE
;
5674 if (create_flag
&& seg
== NULL
)
5675 seg
= subseg_new (space_name
, 0);
5677 /* If create_flag is nonzero, then create the new space with
5678 the attributes computed above. Else set the values in
5679 an already existing space -- this can only happen for
5680 the first occurence of a built-in space. */
5682 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
5683 private, sort
, seg
, 1);
5686 space
= is_defined_space (space_name
);
5687 SPACE_SPNUM (space
) = spnum
;
5688 SPACE_DEFINED (space
) = defined
& 1;
5689 SPACE_USER_DEFINED (space
) = 1;
5692 #ifdef obj_set_section_attributes
5693 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
5699 /* Handle a .SPACE pseudo-op; this switches the current space to the
5700 given space, creating the new space if necessary. */
5706 char *name
, c
, *space_name
, *save_s
;
5708 sd_chain_struct
*sd_chain
;
5710 if (within_procedure
)
5712 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
5713 ignore_rest_of_line ();
5717 /* Check for some of the predefined spaces. FIXME: most of the code
5718 below is repeated several times, can we extract the common parts
5719 and place them into a subroutine or something similar? */
5720 /* FIXME Is this (and the next IF stmt) really right?
5721 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5722 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
5724 input_line_pointer
+= 6;
5725 sd_chain
= is_defined_space ("$TEXT$");
5726 if (sd_chain
== NULL
)
5727 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
5728 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5729 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
5731 current_space
= sd_chain
;
5732 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
5734 = pa_subsegment_to_subspace (text_section
,
5735 sd_chain
->sd_last_subseg
);
5736 demand_empty_rest_of_line ();
5739 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
5741 input_line_pointer
+= 9;
5742 sd_chain
= is_defined_space ("$PRIVATE$");
5743 if (sd_chain
== NULL
)
5744 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
5745 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5746 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
5748 current_space
= sd_chain
;
5749 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
5751 = pa_subsegment_to_subspace (data_section
,
5752 sd_chain
->sd_last_subseg
);
5753 demand_empty_rest_of_line ();
5756 if (!strncasecmp (input_line_pointer
,
5757 GDB_DEBUG_SPACE_NAME
,
5758 strlen (GDB_DEBUG_SPACE_NAME
)))
5760 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
5761 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
5762 if (sd_chain
== NULL
)
5763 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
5764 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5765 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
5767 current_space
= sd_chain
;
5770 asection
*gdb_section
5771 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
5773 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
5775 = pa_subsegment_to_subspace (gdb_section
,
5776 sd_chain
->sd_last_subseg
);
5778 demand_empty_rest_of_line ();
5782 /* It could be a space specified by number. */
5784 save_s
= input_line_pointer
;
5785 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
5787 if ((sd_chain
= pa_find_space_by_number (temp
)))
5789 current_space
= sd_chain
;
5791 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5793 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5794 sd_chain
->sd_last_subseg
);
5795 demand_empty_rest_of_line ();
5800 /* Not a number, attempt to create a new space. */
5802 input_line_pointer
= save_s
;
5803 name
= input_line_pointer
;
5804 c
= get_symbol_end ();
5805 space_name
= xmalloc (strlen (name
) + 1);
5806 strcpy (space_name
, name
);
5807 *input_line_pointer
= c
;
5809 sd_chain
= pa_parse_space_stmt (space_name
, 1);
5810 current_space
= sd_chain
;
5812 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5813 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5814 sd_chain
->sd_last_subseg
);
5815 demand_empty_rest_of_line ();
5819 /* Switch to a new space. (I think). FIXME. */
5828 sd_chain_struct
*space
;
5830 name
= input_line_pointer
;
5831 c
= get_symbol_end ();
5832 space
= is_defined_space (name
);
5836 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
5839 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
5841 *input_line_pointer
= c
;
5842 demand_empty_rest_of_line ();
5845 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
5846 given subspace, creating the new subspace if necessary.
5848 FIXME. Should mirror pa_space more closely, in particular how
5849 they're broken up into subroutines. */
5852 pa_subspace (create_new
)
5855 char *name
, *ss_name
, c
;
5856 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
5857 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
5858 sd_chain_struct
*space
;
5859 ssd_chain_struct
*ssd
;
5862 if (current_space
== NULL
)
5863 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
5865 if (within_procedure
)
5867 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
5868 ignore_rest_of_line ();
5872 name
= input_line_pointer
;
5873 c
= get_symbol_end ();
5874 ss_name
= xmalloc (strlen (name
) + 1);
5875 strcpy (ss_name
, name
);
5876 *input_line_pointer
= c
;
5878 /* Load default values. */
5890 space
= current_space
;
5894 ssd
= is_defined_subspace (ss_name
);
5895 /* Allow user to override the builtin attributes of subspaces. But
5896 only allow the attributes to be changed once! */
5897 if (ssd
&& SUBSPACE_DEFINED (ssd
))
5899 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
5900 current_subspace
= ssd
;
5901 if (!is_end_of_statement ())
5902 as_warn (_("Parameters of an existing subspace can\'t be modified"));
5903 demand_empty_rest_of_line ();
5908 /* A new subspace. Load default values if it matches one of
5909 the builtin subspaces. */
5911 while (pa_def_subspaces
[i
].name
)
5913 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
5915 loadable
= pa_def_subspaces
[i
].loadable
;
5916 common
= pa_def_subspaces
[i
].common
;
5917 dup_common
= pa_def_subspaces
[i
].dup_common
;
5918 code_only
= pa_def_subspaces
[i
].code_only
;
5919 zero
= pa_def_subspaces
[i
].zero
;
5920 space_index
= pa_def_subspaces
[i
].space_index
;
5921 alignment
= pa_def_subspaces
[i
].alignment
;
5922 quadrant
= pa_def_subspaces
[i
].quadrant
;
5923 access
= pa_def_subspaces
[i
].access
;
5924 sort
= pa_def_subspaces
[i
].sort
;
5931 /* We should be working with a new subspace now. Fill in
5932 any information as specified by the user. */
5933 if (!is_end_of_statement ())
5935 input_line_pointer
++;
5936 while (!is_end_of_statement ())
5938 name
= input_line_pointer
;
5939 c
= get_symbol_end ();
5940 if ((strncasecmp (name
, "quad", 4) == 0))
5942 *input_line_pointer
= c
;
5943 input_line_pointer
++;
5944 quadrant
= get_absolute_expression ();
5946 else if ((strncasecmp (name
, "align", 5) == 0))
5948 *input_line_pointer
= c
;
5949 input_line_pointer
++;
5950 alignment
= get_absolute_expression ();
5951 if (log2 (alignment
) == -1)
5953 as_bad (_("Alignment must be a power of 2"));
5957 else if ((strncasecmp (name
, "access", 6) == 0))
5959 *input_line_pointer
= c
;
5960 input_line_pointer
++;
5961 access
= get_absolute_expression ();
5963 else if ((strncasecmp (name
, "sort", 4) == 0))
5965 *input_line_pointer
= c
;
5966 input_line_pointer
++;
5967 sort
= get_absolute_expression ();
5969 else if ((strncasecmp (name
, "code_only", 9) == 0))
5971 *input_line_pointer
= c
;
5974 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5976 *input_line_pointer
= c
;
5979 else if ((strncasecmp (name
, "common", 6) == 0))
5981 *input_line_pointer
= c
;
5984 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
5986 *input_line_pointer
= c
;
5989 else if ((strncasecmp (name
, "zero", 4) == 0))
5991 *input_line_pointer
= c
;
5994 else if ((strncasecmp (name
, "first", 5) == 0))
5995 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
5997 as_bad (_("Invalid .SUBSPACE argument"));
5998 if (!is_end_of_statement ())
5999 input_line_pointer
++;
6003 /* Compute a reasonable set of BFD flags based on the information
6004 in the .subspace directive. */
6005 applicable
= bfd_applicable_section_flags (stdoutput
);
6008 flags
|= (SEC_ALLOC
| SEC_LOAD
);
6011 if (common
|| dup_common
)
6012 flags
|= SEC_IS_COMMON
;
6014 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
6016 /* This is a zero-filled subspace (eg BSS). */
6018 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
6020 applicable
&= flags
;
6022 /* If this is an existing subspace, then we want to use the
6023 segment already associated with the subspace.
6025 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6026 lots of sections. It might be a problem in the PA ELF
6027 code, I do not know yet. For now avoid creating anything
6028 but the "standard" sections for ELF. */
6030 section
= subseg_force_new (ss_name
, 0);
6032 section
= ssd
->ssd_seg
;
6034 section
= subseg_new (ss_name
, 0);
6037 seg_info (section
)->bss
= 1;
6039 /* Now set the flags. */
6040 bfd_set_section_flags (stdoutput
, section
, applicable
);
6042 /* Record any alignment request for this section. */
6043 record_alignment (section
, log2 (alignment
));
6045 /* Set the starting offset for this section. */
6046 bfd_set_section_vma (stdoutput
, section
,
6047 pa_subspace_start (space
, quadrant
));
6049 /* Now that all the flags are set, update an existing subspace,
6050 or create a new one. */
6053 current_subspace
= update_subspace (space
, ss_name
, loadable
,
6054 code_only
, common
, dup_common
,
6055 sort
, zero
, access
, space_index
,
6056 alignment
, quadrant
,
6059 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
6061 dup_common
, zero
, sort
,
6062 access
, space_index
,
6063 alignment
, quadrant
, section
);
6065 demand_empty_rest_of_line ();
6066 current_subspace
->ssd_seg
= section
;
6067 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6069 SUBSPACE_DEFINED (current_subspace
) = 1;
6073 /* Create default space and subspace dictionaries. */
6080 space_dict_root
= NULL
;
6081 space_dict_last
= NULL
;
6084 while (pa_def_spaces
[i
].name
)
6088 /* Pick the right name to use for the new section. */
6089 name
= pa_def_spaces
[i
].name
;
6091 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6092 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6093 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6094 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6095 pa_def_spaces
[i
].segment
, 0);
6100 while (pa_def_subspaces
[i
].name
)
6103 int applicable
, subsegment
;
6104 asection
*segment
= NULL
;
6105 sd_chain_struct
*space
;
6107 /* Pick the right name for the new section and pick the right
6108 subsegment number. */
6109 name
= pa_def_subspaces
[i
].name
;
6112 /* Create the new section. */
6113 segment
= subseg_new (name
, subsegment
);
6116 /* For SOM we want to replace the standard .text, .data, and .bss
6117 sections with our own. We also want to set BFD flags for
6118 all the built-in subspaces. */
6119 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6121 text_section
= segment
;
6122 applicable
= bfd_applicable_section_flags (stdoutput
);
6123 bfd_set_section_flags (stdoutput
, segment
,
6124 applicable
& (SEC_ALLOC
| SEC_LOAD
6125 | SEC_RELOC
| SEC_CODE
6127 | SEC_HAS_CONTENTS
));
6129 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6131 data_section
= segment
;
6132 applicable
= bfd_applicable_section_flags (stdoutput
);
6133 bfd_set_section_flags (stdoutput
, segment
,
6134 applicable
& (SEC_ALLOC
| SEC_LOAD
6136 | SEC_HAS_CONTENTS
));
6140 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6142 bss_section
= segment
;
6143 applicable
= bfd_applicable_section_flags (stdoutput
);
6144 bfd_set_section_flags (stdoutput
, segment
,
6145 applicable
& SEC_ALLOC
);
6147 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6149 applicable
= bfd_applicable_section_flags (stdoutput
);
6150 bfd_set_section_flags (stdoutput
, segment
,
6151 applicable
& (SEC_ALLOC
| SEC_LOAD
6154 | SEC_HAS_CONTENTS
));
6156 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6158 applicable
= bfd_applicable_section_flags (stdoutput
);
6159 bfd_set_section_flags (stdoutput
, segment
,
6160 applicable
& (SEC_ALLOC
| SEC_LOAD
6163 | SEC_HAS_CONTENTS
));
6165 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6167 applicable
= bfd_applicable_section_flags (stdoutput
);
6168 bfd_set_section_flags (stdoutput
, segment
,
6169 applicable
& (SEC_ALLOC
| SEC_LOAD
6172 | SEC_HAS_CONTENTS
));
6175 /* Find the space associated with this subspace. */
6176 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6177 def_space_index
].segment
);
6180 as_fatal (_("Internal error: Unable to find containing space for %s."),
6181 pa_def_subspaces
[i
].name
);
6184 create_new_subspace (space
, name
,
6185 pa_def_subspaces
[i
].loadable
,
6186 pa_def_subspaces
[i
].code_only
,
6187 pa_def_subspaces
[i
].common
,
6188 pa_def_subspaces
[i
].dup_common
,
6189 pa_def_subspaces
[i
].zero
,
6190 pa_def_subspaces
[i
].sort
,
6191 pa_def_subspaces
[i
].access
,
6192 pa_def_subspaces
[i
].space_index
,
6193 pa_def_subspaces
[i
].alignment
,
6194 pa_def_subspaces
[i
].quadrant
,
6202 /* Create a new space NAME, with the appropriate flags as defined
6203 by the given parameters. */
6205 static sd_chain_struct
*
6206 create_new_space (name
, spnum
, loadable
, defined
, private,
6207 sort
, seg
, user_defined
)
6217 sd_chain_struct
*chain_entry
;
6219 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6221 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6224 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6225 strcpy (SPACE_NAME (chain_entry
), name
);
6226 SPACE_DEFINED (chain_entry
) = defined
;
6227 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6228 SPACE_SPNUM (chain_entry
) = spnum
;
6230 chain_entry
->sd_seg
= seg
;
6231 chain_entry
->sd_last_subseg
= -1;
6232 chain_entry
->sd_subspaces
= NULL
;
6233 chain_entry
->sd_next
= NULL
;
6235 /* Find spot for the new space based on its sort key. */
6236 if (!space_dict_last
)
6237 space_dict_last
= chain_entry
;
6239 if (space_dict_root
== NULL
)
6240 space_dict_root
= chain_entry
;
6243 sd_chain_struct
*chain_pointer
;
6244 sd_chain_struct
*prev_chain_pointer
;
6246 chain_pointer
= space_dict_root
;
6247 prev_chain_pointer
= NULL
;
6249 while (chain_pointer
)
6251 prev_chain_pointer
= chain_pointer
;
6252 chain_pointer
= chain_pointer
->sd_next
;
6255 /* At this point we've found the correct place to add the new
6256 entry. So add it and update the linked lists as appropriate. */
6257 if (prev_chain_pointer
)
6259 chain_entry
->sd_next
= chain_pointer
;
6260 prev_chain_pointer
->sd_next
= chain_entry
;
6264 space_dict_root
= chain_entry
;
6265 chain_entry
->sd_next
= chain_pointer
;
6268 if (chain_entry
->sd_next
== NULL
)
6269 space_dict_last
= chain_entry
;
6272 /* This is here to catch predefined spaces which do not get
6273 modified by the user's input. Another call is found at
6274 the bottom of pa_parse_space_stmt to handle cases where
6275 the user modifies a predefined space. */
6276 #ifdef obj_set_section_attributes
6277 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6283 /* Create a new subspace NAME, with the appropriate flags as defined
6284 by the given parameters.
6286 Add the new subspace to the subspace dictionary chain in numerical
6287 order as defined by the SORT entries. */
6289 static ssd_chain_struct
*
6290 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6291 dup_common
, is_zero
, sort
, access
, space_index
,
6292 alignment
, quadrant
, seg
)
6293 sd_chain_struct
*space
;
6295 int loadable
, code_only
, common
, dup_common
, is_zero
;
6303 ssd_chain_struct
*chain_entry
;
6305 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6307 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6309 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6310 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6312 /* Initialize subspace_defined. When we hit a .subspace directive
6313 we'll set it to 1 which "locks-in" the subspace attributes. */
6314 SUBSPACE_DEFINED (chain_entry
) = 0;
6316 chain_entry
->ssd_subseg
= 0;
6317 chain_entry
->ssd_seg
= seg
;
6318 chain_entry
->ssd_next
= NULL
;
6320 /* Find spot for the new subspace based on its sort key. */
6321 if (space
->sd_subspaces
== NULL
)
6322 space
->sd_subspaces
= chain_entry
;
6325 ssd_chain_struct
*chain_pointer
;
6326 ssd_chain_struct
*prev_chain_pointer
;
6328 chain_pointer
= space
->sd_subspaces
;
6329 prev_chain_pointer
= NULL
;
6331 while (chain_pointer
)
6333 prev_chain_pointer
= chain_pointer
;
6334 chain_pointer
= chain_pointer
->ssd_next
;
6337 /* Now we have somewhere to put the new entry. Insert it and update
6339 if (prev_chain_pointer
)
6341 chain_entry
->ssd_next
= chain_pointer
;
6342 prev_chain_pointer
->ssd_next
= chain_entry
;
6346 space
->sd_subspaces
= chain_entry
;
6347 chain_entry
->ssd_next
= chain_pointer
;
6351 #ifdef obj_set_subsection_attributes
6352 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6359 /* Update the information for the given subspace based upon the
6360 various arguments. Return the modified subspace chain entry. */
6362 static ssd_chain_struct
*
6363 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6364 zero
, access
, space_index
, alignment
, quadrant
, section
)
6365 sd_chain_struct
*space
;
6379 ssd_chain_struct
*chain_entry
;
6381 chain_entry
= is_defined_subspace (name
);
6383 #ifdef obj_set_subsection_attributes
6384 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6391 /* Return the space chain entry for the space with the name NAME or
6392 NULL if no such space exists. */
6394 static sd_chain_struct
*
6395 is_defined_space (name
)
6398 sd_chain_struct
*chain_pointer
;
6400 for (chain_pointer
= space_dict_root
;
6402 chain_pointer
= chain_pointer
->sd_next
)
6404 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6405 return chain_pointer
;
6408 /* No mapping from segment to space was found. Return NULL. */
6412 /* Find and return the space associated with the given seg. If no mapping
6413 from the given seg to a space is found, then return NULL.
6415 Unlike subspaces, the number of spaces is not expected to grow much,
6416 so a linear exhaustive search is OK here. */
6418 static sd_chain_struct
*
6419 pa_segment_to_space (seg
)
6422 sd_chain_struct
*space_chain
;
6424 /* Walk through each space looking for the correct mapping. */
6425 for (space_chain
= space_dict_root
;
6427 space_chain
= space_chain
->sd_next
)
6429 if (space_chain
->sd_seg
== seg
)
6433 /* Mapping was not found. Return NULL. */
6437 /* Return the space chain entry for the subspace with the name NAME or
6438 NULL if no such subspace exists.
6440 Uses a linear search through all the spaces and subspaces, this may
6441 not be appropriate if we ever being placing each function in its
6444 static ssd_chain_struct
*
6445 is_defined_subspace (name
)
6448 sd_chain_struct
*space_chain
;
6449 ssd_chain_struct
*subspace_chain
;
6451 /* Walk through each space. */
6452 for (space_chain
= space_dict_root
;
6454 space_chain
= space_chain
->sd_next
)
6456 /* Walk through each subspace looking for a name which matches. */
6457 for (subspace_chain
= space_chain
->sd_subspaces
;
6459 subspace_chain
= subspace_chain
->ssd_next
)
6460 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6461 return subspace_chain
;
6464 /* Subspace wasn't found. Return NULL. */
6468 /* Find and return the subspace associated with the given seg. If no
6469 mapping from the given seg to a subspace is found, then return NULL.
6471 If we ever put each procedure/function within its own subspace
6472 (to make life easier on the compiler and linker), then this will have
6473 to become more efficient. */
6475 static ssd_chain_struct
*
6476 pa_subsegment_to_subspace (seg
, subseg
)
6480 sd_chain_struct
*space_chain
;
6481 ssd_chain_struct
*subspace_chain
;
6483 /* Walk through each space. */
6484 for (space_chain
= space_dict_root
;
6486 space_chain
= space_chain
->sd_next
)
6488 if (space_chain
->sd_seg
== seg
)
6490 /* Walk through each subspace within each space looking for
6491 the correct mapping. */
6492 for (subspace_chain
= space_chain
->sd_subspaces
;
6494 subspace_chain
= subspace_chain
->ssd_next
)
6495 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6496 return subspace_chain
;
6500 /* No mapping from subsegment to subspace found. Return NULL. */
6504 /* Given a number, try and find a space with the name number.
6506 Return a pointer to a space dictionary chain entry for the space
6507 that was found or NULL on failure. */
6509 static sd_chain_struct
*
6510 pa_find_space_by_number (number
)
6513 sd_chain_struct
*space_chain
;
6515 for (space_chain
= space_dict_root
;
6517 space_chain
= space_chain
->sd_next
)
6519 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6523 /* No appropriate space found. Return NULL. */
6527 /* Return the starting address for the given subspace. If the starting
6528 address is unknown then return zero. */
6531 pa_subspace_start (space
, quadrant
)
6532 sd_chain_struct
*space
;
6535 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6536 is not correct for the PA OSF1 port. */
6537 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6539 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6546 /* FIXME. Needs documentation. */
6548 pa_next_subseg (space
)
6549 sd_chain_struct
*space
;
6552 space
->sd_last_subseg
++;
6553 return space
->sd_last_subseg
;
6557 /* Helper function for pa_stringer. Used to find the end of
6564 unsigned int c
= *s
& CHAR_MASK
;
6567 /* We must have a valid space and subspace. */
6568 pa_check_current_space_and_subspace ();
6582 /* Handle a .STRING type pseudo-op. */
6585 pa_stringer (append_zero
)
6588 char *s
, num_buf
[4];
6592 /* Preprocess the string to handle PA-specific escape sequences.
6593 For example, \xDD where DD is a hexidecimal number should be
6594 changed to \OOO where OOO is an octal number. */
6596 /* Skip the opening quote. */
6597 s
= input_line_pointer
+ 1;
6599 while (is_a_char (c
= pa_stringer_aux (s
++)))
6606 /* Handle \x<num>. */
6609 unsigned int number
;
6614 /* Get pas the 'x'. */
6616 for (num_digit
= 0, number
= 0, dg
= *s
;
6618 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6619 || (dg
>= 'A' && dg
<= 'F'));
6623 number
= number
* 16 + dg
- '0';
6624 else if (dg
>= 'a' && dg
<= 'f')
6625 number
= number
* 16 + dg
- 'a' + 10;
6627 number
= number
* 16 + dg
- 'A' + 10;
6637 sprintf (num_buf
, "%02o", number
);
6640 sprintf (num_buf
, "%03o", number
);
6643 for (i
= 0; i
<= num_digit
; i
++)
6644 s_start
[i
] = num_buf
[i
];
6648 /* This might be a "\"", skip over the escaped char. */
6655 stringer (append_zero
);
6656 pa_undefine_label ();
6659 /* Handle a .VERSION pseudo-op. */
6666 pa_undefine_label ();
6671 /* Handle a .COMPILER pseudo-op. */
6674 pa_compiler (unused
)
6677 obj_som_compiler (0);
6678 pa_undefine_label ();
6683 /* Handle a .COPYRIGHT pseudo-op. */
6686 pa_copyright (unused
)
6690 pa_undefine_label ();
6693 /* Just like a normal cons, but when finished we have to undefine
6694 the latest space label. */
6701 pa_undefine_label ();
6704 /* Switch to the data space. As usual delete our label. */
6711 current_space
= is_defined_space ("$PRIVATE$");
6713 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6716 pa_undefine_label ();
6719 /* Like float_cons, but we need to undefine our label. */
6722 pa_float_cons (float_type
)
6725 float_cons (float_type
);
6726 pa_undefine_label ();
6729 /* Like s_fill, but delete our label when finished. */
6736 /* We must have a valid space and subspace. */
6737 pa_check_current_space_and_subspace ();
6741 pa_undefine_label ();
6744 /* Like lcomm, but delete our label when finished. */
6747 pa_lcomm (needs_align
)
6751 /* We must have a valid space and subspace. */
6752 pa_check_current_space_and_subspace ();
6755 s_lcomm (needs_align
);
6756 pa_undefine_label ();
6759 /* Like lsym, but delete our label when finished. */
6766 /* We must have a valid space and subspace. */
6767 pa_check_current_space_and_subspace ();
6771 pa_undefine_label ();
6774 /* Switch to the text space. Like s_text, but delete our
6775 label when finished. */
6781 current_space
= is_defined_space ("$TEXT$");
6783 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6787 pa_undefine_label ();
6790 /* On the PA relocations which involve function symbols must not be
6791 adjusted. This so that the linker can know when/how to create argument
6792 relocation stubs for indirect calls and calls to static functions.
6794 "T" field selectors create DLT relative fixups for accessing
6795 globals and statics in PIC code; each DLT relative fixup creates
6796 an entry in the DLT table. The entries contain the address of
6797 the final target (eg accessing "foo" would create a DLT entry
6798 with the address of "foo").
6800 Unfortunately, the HP linker doesn't take into account any addend
6801 when generating the DLT; so accessing $LIT$+8 puts the address of
6802 $LIT$ into the DLT rather than the address of $LIT$+8.
6804 The end result is we can't perform relocation symbol reductions for
6805 any fixup which creates entries in the DLT (eg they use "T" field
6808 Reject reductions involving symbols with external scope; such
6809 reductions make life a living hell for object file editors.
6811 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6812 the code space. The SOM BFD backend doesn't know how to pull the
6813 right bits out of an instruction. */
6816 hppa_fix_adjustable (fixp
)
6819 struct hppa_fix_struct
*hppa_fix
;
6821 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6824 /* Reject reductions of symbols in 32bit relocs. */
6825 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
6828 /* Reject reductions of symbols in sym1-sym2 expressions when
6829 the fixup will occur in a CODE subspace.
6831 XXX FIXME: Long term we probably want to reject all of these;
6832 for example reducing in the debug section would lose if we ever
6833 supported using the optimizing hp linker. */
6836 && (hppa_fix
->segment
->flags
& SEC_CODE
))
6838 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
6839 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
6843 /* We can't adjust any relocs that use LR% and RR% field selectors.
6844 That confuses the HP linker. */
6845 if (hppa_fix
->fx_r_field
== e_lrsel
6846 || hppa_fix
->fx_r_field
== e_rrsel
6847 || hppa_fix
->fx_r_field
== e_nlrsel
)
6851 /* Reject reductions of symbols in DLT relative relocs,
6852 relocations with plabels. */
6853 if (hppa_fix
->fx_r_field
== e_tsel
6854 || hppa_fix
->fx_r_field
== e_ltsel
6855 || hppa_fix
->fx_r_field
== e_rtsel
6856 || hppa_fix
->fx_r_field
== e_psel
6857 || hppa_fix
->fx_r_field
== e_rpsel
6858 || hppa_fix
->fx_r_field
== e_lpsel
)
6861 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
6864 /* Reject absolute calls (jumps). */
6865 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
6868 /* Reject reductions of function symbols. */
6869 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
6875 /* Return nonzero if the fixup in FIXP will require a relocation,
6876 even it if appears that the fixup could be completely handled
6880 hppa_force_relocation (fixp
)
6883 struct hppa_fix_struct
*hppa_fixp
;
6886 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6888 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
6889 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
6890 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
6891 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
6892 || fixp
->fx_r_type
== R_HPPA_END_TRY
6893 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
6894 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
6898 #define arg_reloc_stub_needed(CALLER, CALLEE) \
6899 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6902 /* It is necessary to force PC-relative calls/jumps to have a relocation
6903 entry if they're going to need either a argument relocation or long
6904 call stub. FIXME. Can't we need the same for absolute calls? */
6905 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
6906 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
6907 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
6908 hppa_fixp
->fx_arg_reloc
)))
6911 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
6912 - md_pcrel_from (fixp
));
6913 /* Now check and see if we're going to need a long-branch stub. */
6914 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
6915 && (distance
> 262143 || distance
< -262144))
6918 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
6920 #undef arg_reloc_stub_needed
6922 /* No need (yet) to force another relocations to be emitted. */
6926 /* Now for some ELF specific code. FIXME. */
6928 /* Mark the end of a function so that it's possible to compute
6929 the size of the function in hppa_elf_final_processing. */
6932 hppa_elf_mark_end_of_function ()
6934 /* ELF does not have EXIT relocations. All we do is create a
6935 temporary symbol marking the end of the function. */
6936 char *name
= (char *)
6937 xmalloc (strlen ("L$\001end_") +
6938 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
6944 strcpy (name
, "L$\001end_");
6945 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
6947 /* If we have a .exit followed by a .procend, then the
6948 symbol will have already been defined. */
6949 symbolP
= symbol_find (name
);
6952 /* The symbol has already been defined! This can
6953 happen if we have a .exit followed by a .procend.
6955 This is *not* an error. All we want to do is free
6956 the memory we just allocated for the name and continue. */
6961 /* symbol value should be the offset of the
6962 last instruction of the function */
6963 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
6967 S_CLEAR_EXTERNAL (symbolP
);
6968 symbol_table_insert (symbolP
);
6972 last_call_info
->end_symbol
= symbolP
;
6974 as_bad (_("Symbol '%s' could not be created."), name
);
6978 as_bad (_("No memory for symbol name."));
6982 /* For ELF, this function serves one purpose: to setup the st_size
6983 field of STT_FUNC symbols. To do this, we need to scan the
6984 call_info structure list, determining st_size in by taking the
6985 difference in the address of the beginning/end marker symbols. */
6988 elf_hppa_final_processing ()
6990 struct call_info
*call_info_pointer
;
6992 for (call_info_pointer
= call_info_root
;
6994 call_info_pointer
= call_info_pointer
->ci_next
)
6996 elf_symbol_type
*esym
6997 = ((elf_symbol_type
*)
6998 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
6999 esym
->internal_elf_sym
.st_size
=
7000 S_GET_VALUE (call_info_pointer
->end_symbol
)
7001 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;