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
)
1537 /* Absorb white space in instruction. */
1538 while (*s
== ' ' || *s
== '\t')
1544 /* End of arguments. */
1560 /* These must match exactly. */
1569 /* Handle a 5 bit register or control register field at 10. */
1572 num
= pa_parse_number (&s
, 0);
1573 CHECK_FIELD (num
, 31, 0, 0);
1574 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1576 /* Handle %sar or %cr11. No bits get set, we just verify that it
1579 /* Skip whitespace before register. */
1580 while (*s
== ' ' || *s
== '\t')
1583 if (!strncasecmp(s
, "%sar", 4))
1588 else if (!strncasecmp(s
, "%cr11", 5))
1595 /* Handle a 5 bit register field at 15. */
1597 num
= pa_parse_number (&s
, 0);
1598 CHECK_FIELD (num
, 31, 0, 0);
1599 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1601 /* Handle a 5 bit register field at 31. */
1604 num
= pa_parse_number (&s
, 0);
1605 CHECK_FIELD (num
, 31, 0, 0);
1606 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1608 /* Handle a 5 bit register field at 10 and 15. */
1610 num
= pa_parse_number (&s
, 0);
1611 CHECK_FIELD (num
, 31, 0, 0);
1612 opcode
|= num
<< 16;
1613 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1615 /* Handle a 5 bit field length at 31. */
1617 num
= pa_get_absolute_expression (&the_insn
, &s
);
1619 CHECK_FIELD (num
, 32, 1, 0);
1620 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
1622 /* Handle a 5 bit immediate at 15. */
1624 num
= pa_get_absolute_expression (&the_insn
, &s
);
1626 CHECK_FIELD (num
, 15, -16, 0);
1627 low_sign_unext (num
, 5, &num
);
1628 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1630 /* Handle a 5 bit immediate at 31. */
1632 num
= pa_get_absolute_expression (&the_insn
, &s
);
1634 CHECK_FIELD (num
, 15, -16, 0)
1635 low_sign_unext (num
, 5, &num
);
1636 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1638 /* Handle an unsigned 5 bit immediate at 31. */
1640 num
= pa_get_absolute_expression (&the_insn
, &s
);
1642 CHECK_FIELD (num
, 31, 0, 0);
1643 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1645 /* Handle an unsigned 5 bit immediate at 15. */
1647 num
= pa_get_absolute_expression (&the_insn
, &s
);
1649 CHECK_FIELD (num
, 31, 0, 0);
1650 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1652 /* Handle an unsigned 10 bit immediate at 15. */
1654 num
= pa_get_absolute_expression (&the_insn
, &s
);
1656 CHECK_FIELD (num
, 1023, 0, 0);
1657 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1659 /* Handle a 2 bit space identifier at 17. */
1661 num
= pa_parse_number (&s
, 0);
1662 CHECK_FIELD (num
, 3, 0, 1);
1663 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
1665 /* Handle a 3 bit space identifier at 18. */
1667 num
= pa_parse_number (&s
, 0);
1668 CHECK_FIELD (num
, 7, 0, 1);
1669 dis_assemble_3 (num
, &num
);
1670 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
1672 /* Handle all completers. */
1677 /* Handle a completer for an indexing load or store. */
1683 while (*s
== ',' && i
< 2)
1686 if (strncasecmp (s
, "sm", 2) == 0)
1693 else if (strncasecmp (s
, "m", 1) == 0)
1695 else if (strncasecmp (s
, "s", 1) == 0)
1698 as_bad (_("Invalid Indexed Load Completer."));
1703 as_bad (_("Invalid Indexed Load Completer Syntax."));
1705 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
1708 /* Handle a short load/store completer. */
1716 if (strncasecmp (s
, "ma", 2) == 0)
1721 else if (strncasecmp (s
, "mb", 2) == 0)
1727 as_bad (_("Invalid Short Load/Store Completer."));
1732 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1735 /* Handle a stbys completer. */
1741 while (*s
== ',' && i
< 2)
1744 if (strncasecmp (s
, "m", 1) == 0)
1746 else if (strncasecmp (s
, "b", 1) == 0)
1748 else if (strncasecmp (s
, "e", 1) == 0)
1751 as_bad (_("Invalid Store Bytes Short Completer"));
1756 as_bad (_("Invalid Store Bytes Short Completer"));
1758 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1761 /* Handle a local processor completer. */
1763 if (strncasecmp (s
, ",l", 2) != 0)
1768 /* Handle a PROBE read/write completer. */
1771 if (!strncasecmp (s
, ",w", 2))
1776 else if (!strncasecmp (s
, ",r", 2))
1782 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1784 /* Handle MFCTL wide completer. */
1786 if (strncasecmp (s
, ",w", 2) != 0)
1791 /* Handle an RFI restore completer. */
1794 if (!strncasecmp (s
, ",r", 2))
1800 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1802 /* Handle a system control completer. */
1804 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
1812 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1814 /* Handle intermediate/final completer for DCOR. */
1817 if (!strncasecmp (s
, ",i", 2))
1823 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1825 /* Handle zero/sign extension completer. */
1828 if (!strncasecmp (s
, ",z", 2))
1834 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1836 /* Handle add completer. */
1839 if (!strncasecmp (s
, ",l", 2))
1844 else if (!strncasecmp (s
, ",tsv", 4))
1850 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1852 /* Handle 64 bit carry for ADD. */
1855 if (!strncasecmp (s
, ",dc,tsv", 7) ||
1856 !strncasecmp (s
, ",tsv,dc", 7))
1861 else if (!strncasecmp (s
, ",dc", 3))
1869 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1871 /* Handle 32 bit carry for ADD. */
1874 if (!strncasecmp (s
, ",c,tsv", 6) ||
1875 !strncasecmp (s
, ",tsv,c", 6))
1880 else if (!strncasecmp (s
, ",c", 2))
1888 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1890 /* Handle trap on signed overflow. */
1893 if (!strncasecmp (s
, ",tsv", 4))
1899 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1901 /* Handle trap on condition and overflow. */
1904 if (!strncasecmp (s
, ",tc,tsv", 7) ||
1905 !strncasecmp (s
, ",tsv,tc", 7))
1910 else if (!strncasecmp (s
, ",tc", 3))
1918 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1920 /* Handle 64 bit borrow for SUB. */
1923 if (!strncasecmp (s
, ",db,tsv", 7) ||
1924 !strncasecmp (s
, ",tsv,db", 7))
1929 else if (!strncasecmp (s
, ",db", 3))
1937 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1939 /* Handle 32 bit borrow for SUB. */
1942 if (!strncasecmp (s
, ",b,tsv", 6) ||
1943 !strncasecmp (s
, ",tsv,b", 6))
1948 else if (!strncasecmp (s
, ",b", 2))
1956 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1958 /* Handle trap condition completer for UADDCM. */
1961 if (!strncasecmp (s
, ",tc", 3))
1967 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1969 /* Handle signed/unsigned at 21. */
1973 if (strncasecmp (s
, ",s", 2) == 0)
1978 else if (strncasecmp (s
, ",u", 2) == 0)
1984 INSERT_FIELD_AND_CONTINUE (opcode
, sign
, 10);
1987 /* Handle left/right combination at 17:18. */
1997 as_bad(_("Invalid left/right combination completer"));
2000 INSERT_FIELD_AND_CONTINUE (opcode
, lr
, 13);
2003 as_bad(_("Invalid left/right combination completer"));
2006 /* Handle saturation at 24:25. */
2010 if (strncasecmp (s
, ",ss", 3) == 0)
2015 else if (strncasecmp (s
, ",us", 3) == 0)
2021 INSERT_FIELD_AND_CONTINUE (opcode
, sat
, 6);
2024 /* Handle permutation completer. */
2028 int permloc
[4] = {13,10,8,6};
2048 as_bad(_("Invalid permutation completer"));
2050 opcode
|= perm
<< permloc
[i
];
2055 as_bad(_("Invalid permutation completer"));
2063 /* Handle all conditions. */
2069 /* Handle FP compare conditions. */
2071 cond
= pa_parse_fp_cmp_cond (&s
);
2072 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
2074 /* Handle an add condition. */
2083 /* 64 bit conditions. */
2096 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2100 if (strcmp (name
, "=") == 0)
2102 else if (strcmp (name
, "<") == 0)
2104 else if (strcmp (name
, "<=") == 0)
2106 else if (strcasecmp (name
, "nuv") == 0)
2108 else if (strcasecmp (name
, "znv") == 0)
2110 else if (strcasecmp (name
, "sv") == 0)
2112 else if (strcasecmp (name
, "od") == 0)
2114 else if (strcasecmp (name
, "tr") == 0)
2119 else if (strcmp (name
, "<>") == 0)
2124 else if (strcmp (name
, ">=") == 0)
2129 else if (strcmp (name
, ">") == 0)
2134 else if (strcasecmp (name
, "uv") == 0)
2139 else if (strcasecmp (name
, "vnz") == 0)
2144 else if (strcasecmp (name
, "nsv") == 0)
2149 else if (strcasecmp (name
, "ev") == 0)
2154 /* ",*" is a valid condition. */
2155 else if (*args
== 'a')
2156 as_bad (_("Invalid Add Condition: %s"), name
);
2159 opcode
|= cmpltr
<< 13;
2160 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2162 /* Handle non-negated add and branch condition. */
2164 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2167 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2170 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2172 /* Handle negated add and branch condition. */
2176 /* Handle wide-mode non-negated add and branch condition. */
2180 /* Handle wide-mode negated add and branch condition. */
2184 /* Handle a negated or non-negated add and branch
2188 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2192 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
2195 as_bad (_("Invalid Compare/Subtract Condition"));
2200 /* Negated condition requires an opcode change. */
2204 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2206 /* Handle branch on bit conditions. */
2224 if (strncmp (s
, "<", 1) == 0)
2229 else if (strncmp (s
, ">=", 2) == 0)
2235 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
2237 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
2239 /* Handle a compare/subtract condition. */
2248 /* 64 bit conditions. */
2261 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2265 if (strcmp (name
, "=") == 0)
2267 else if (strcmp (name
, "<") == 0)
2269 else if (strcmp (name
, "<=") == 0)
2271 else if (strcasecmp (name
, "<<") == 0)
2273 else if (strcasecmp (name
, "<<=") == 0)
2275 else if (strcasecmp (name
, "sv") == 0)
2277 else if (strcasecmp (name
, "od") == 0)
2279 else if (strcasecmp (name
, "tr") == 0)
2284 else if (strcmp (name
, "<>") == 0)
2289 else if (strcmp (name
, ">=") == 0)
2294 else if (strcmp (name
, ">") == 0)
2299 else if (strcasecmp (name
, ">>=") == 0)
2304 else if (strcasecmp (name
, ">>") == 0)
2309 else if (strcasecmp (name
, "nsv") == 0)
2314 else if (strcasecmp (name
, "ev") == 0)
2319 /* ",*" is a valid condition. */
2320 else if (*args
!= 'S')
2321 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2325 opcode
|= cmpltr
<< 13;
2326 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2328 /* Handle a non-negated compare condition. */
2330 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2333 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2336 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2338 /* Handle a negated compare condition. */
2342 /* Handle a 64 bit non-negated compare condition. */
2346 /* Handle a 64 bit negated compare condition. */
2350 /* Handle a 64 bit cmpib condition. */
2354 /* Handle a negated or non-negated compare/subtract
2358 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2362 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2365 as_bad (_("Invalid Compare/Subtract Condition."));
2370 /* Negated condition requires an opcode change. */
2375 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2377 /* Handle a logical instruction condition. */
2386 /* 64 bit conditions. */
2399 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2405 if (strcmp (name
, "=") == 0)
2407 else if (strcmp (name
, "<") == 0)
2409 else if (strcmp (name
, "<=") == 0)
2411 else if (strcasecmp (name
, "od") == 0)
2413 else if (strcasecmp (name
, "tr") == 0)
2418 else if (strcmp (name
, "<>") == 0)
2423 else if (strcmp (name
, ">=") == 0)
2428 else if (strcmp (name
, ">") == 0)
2433 else if (strcasecmp (name
, "ev") == 0)
2438 /* ",*" is a valid condition. */
2439 else if (*args
!= 'L')
2440 as_bad (_("Invalid Logical Instruction Condition."));
2443 opcode
|= cmpltr
<< 13;
2444 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2446 /* Handle a shift/extract/deposit condition. */
2455 /* 64 bit conditions. */
2468 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2472 if (strcmp (name
, "=") == 0)
2474 else if (strcmp (name
, "<") == 0)
2476 else if (strcasecmp (name
, "od") == 0)
2478 else if (strcasecmp (name
, "tr") == 0)
2480 else if (strcmp (name
, "<>") == 0)
2482 else if (strcmp (name
, ">=") == 0)
2484 else if (strcasecmp (name
, "ev") == 0)
2486 /* Handle movb,n. Put things back the way they were.
2487 This includes moving s back to where it started. */
2488 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2494 /* ",*" is a valid condition. */
2495 else if (*args
!= 'X')
2496 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2499 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2501 /* Handle a unit instruction condition. */
2510 /* 64 bit conditions. */
2521 if (strncasecmp (s
, "sbz", 3) == 0)
2526 else if (strncasecmp (s
, "shz", 3) == 0)
2531 else if (strncasecmp (s
, "sdc", 3) == 0)
2536 else if (strncasecmp (s
, "sbc", 3) == 0)
2541 else if (strncasecmp (s
, "shc", 3) == 0)
2546 else if (strncasecmp (s
, "tr", 2) == 0)
2552 else if (strncasecmp (s
, "nbz", 3) == 0)
2558 else if (strncasecmp (s
, "nhz", 3) == 0)
2564 else if (strncasecmp (s
, "ndc", 3) == 0)
2570 else if (strncasecmp (s
, "nbc", 3) == 0)
2576 else if (strncasecmp (s
, "nhc", 3) == 0)
2582 /* ",*" is a valid condition. */
2583 else if (*args
!= 'U')
2584 as_bad (_("Invalid Unit Instruction Condition."));
2586 opcode
|= cmpltr
<< 13;
2587 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2595 /* Handle a nullification completer for branch instructions. */
2597 nullif
= pa_parse_nullif (&s
);
2598 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2600 /* Handle a nullification completer for copr and spop insns. */
2602 nullif
= pa_parse_nullif (&s
);
2603 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2606 /* Handle a 11 bit immediate at 31. */
2608 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2611 if (the_insn
.exp
.X_op
== O_constant
)
2613 num
= evaluate_absolute (&the_insn
);
2614 CHECK_FIELD (num
, 1023, -1024, 0);
2615 low_sign_unext (num
, 11, &num
);
2616 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2620 if (is_DP_relative (the_insn
.exp
))
2621 the_insn
.reloc
= R_HPPA_GOTOFF
;
2622 else if (is_PC_relative (the_insn
.exp
))
2623 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2625 the_insn
.reloc
= R_HPPA
;
2626 the_insn
.format
= 11;
2631 /* Handle a 14 bit immediate at 31. */
2633 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2636 if (the_insn
.exp
.X_op
== O_constant
)
2638 num
= evaluate_absolute (&the_insn
);
2639 CHECK_FIELD (num
, 8191, -8192, 0);
2640 low_sign_unext (num
, 14, &num
);
2641 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2645 if (is_DP_relative (the_insn
.exp
))
2646 the_insn
.reloc
= R_HPPA_GOTOFF
;
2647 else if (is_PC_relative (the_insn
.exp
))
2648 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2650 the_insn
.reloc
= R_HPPA
;
2651 the_insn
.format
= 14;
2655 /* Handle a 21 bit immediate at 31. */
2657 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2660 if (the_insn
.exp
.X_op
== O_constant
)
2662 num
= evaluate_absolute (&the_insn
);
2663 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2664 dis_assemble_21 (num
, &num
);
2665 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2669 if (is_DP_relative (the_insn
.exp
))
2670 the_insn
.reloc
= R_HPPA_GOTOFF
;
2671 else if (is_PC_relative (the_insn
.exp
))
2672 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2674 the_insn
.reloc
= R_HPPA
;
2675 the_insn
.format
= 21;
2679 /* Handle a 12 bit branch displacement. */
2681 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2685 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2687 unsigned int w1
, w
, result
;
2689 num
= evaluate_absolute (&the_insn
);
2692 as_bad (_("Branch to unaligned address"));
2695 CHECK_FIELD (num
, 8199, -8184, 0);
2696 sign_unext ((num
- 8) >> 2, 12, &result
);
2697 dis_assemble_12 (result
, &w1
, &w
);
2698 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2702 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2703 the_insn
.format
= 12;
2704 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2705 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2710 /* Handle a 17 bit branch displacement. */
2712 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2716 if (!the_insn
.exp
.X_add_symbol
2717 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2720 unsigned int w2
, w1
, w
, result
;
2722 num
= evaluate_absolute (&the_insn
);
2725 as_bad (_("Branch to unaligned address"));
2728 CHECK_FIELD (num
, 262143, -262144, 0);
2730 if (the_insn
.exp
.X_add_symbol
)
2733 sign_unext (num
>> 2, 17, &result
);
2734 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2735 INSERT_FIELD_AND_CONTINUE (opcode
,
2736 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2740 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2741 the_insn
.format
= 17;
2742 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2743 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2747 /* Handle an absolute 17 bit branch target. */
2749 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2753 if (!the_insn
.exp
.X_add_symbol
2754 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2757 unsigned int w2
, w1
, w
, result
;
2759 num
= evaluate_absolute (&the_insn
);
2762 as_bad (_("Branch to unaligned address"));
2765 CHECK_FIELD (num
, 262143, -262144, 0);
2767 if (the_insn
.exp
.X_add_symbol
)
2770 sign_unext (num
>> 2, 17, &result
);
2771 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2772 INSERT_FIELD_AND_CONTINUE (opcode
,
2773 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2777 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2778 the_insn
.format
= 17;
2779 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2780 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2784 /* Handle a 2 bit shift count at 25. */
2786 num
= pa_get_absolute_expression (&the_insn
, &s
);
2788 CHECK_FIELD (num
, 3, 1, 0);
2789 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2791 /* Handle a 4 bit shift count at 25. */
2793 num
= pa_get_absolute_expression (&the_insn
, &s
);
2795 CHECK_FIELD (num
, 15, 0, 0);
2796 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2798 /* Handle a 5 bit shift count at 26. */
2800 num
= pa_get_absolute_expression (&the_insn
, &s
);
2802 CHECK_FIELD (num
, 31, 0, 0);
2803 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2805 /* Handle a 6 bit shift count at 20,22:26. */
2807 num
= pa_get_absolute_expression (&the_insn
, &s
);
2809 CHECK_FIELD (num
, 63, 0, 0);
2811 opcode
|= (num
& 0x20) << 6;
2812 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2814 /* Handle a 6 bit field length at 23,27:31. */
2817 num
= pa_get_absolute_expression (&the_insn
, &s
);
2819 CHECK_FIELD (num
, 64, 1, 0);
2821 opcode
|= (num
& 0x20) << 3;
2822 num
= 31 - (num
& 0x1f);
2823 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2825 /* Handle a 6 bit field length at 19,27:31. */
2827 num
= pa_get_absolute_expression (&the_insn
, &s
);
2829 CHECK_FIELD (num
, 64, 1, 0);
2831 opcode
|= (num
& 0x20) << 7;
2832 num
= 31 - (num
& 0x1f);
2833 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2835 /* Handle a 5 bit bit position at 26. */
2837 num
= pa_get_absolute_expression (&the_insn
, &s
);
2839 CHECK_FIELD (num
, 31, 0, 0);
2840 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2842 /* Handle a 6 bit bit position at 20,22:26. */
2844 num
= pa_get_absolute_expression (&the_insn
, &s
);
2846 CHECK_FIELD (num
, 63, 0, 0);
2847 opcode
|= (num
& 0x20) << 6;
2848 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2850 /* Handle a 5 bit immediate at 10. */
2852 num
= pa_get_absolute_expression (&the_insn
, &s
);
2853 if (the_insn
.exp
.X_op
!= O_constant
)
2856 CHECK_FIELD (num
, 31, 0, 0);
2857 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2859 /* Handle a 9 bit immediate at 28. */
2861 num
= pa_get_absolute_expression (&the_insn
, &s
);
2863 CHECK_FIELD (num
, 511, 1, 0);
2864 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
2866 /* Handle a 13 bit immediate at 18. */
2868 num
= pa_get_absolute_expression (&the_insn
, &s
);
2870 CHECK_FIELD (num
, 8191, 0, 0);
2871 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2873 /* Handle a 26 bit immediate at 31. */
2875 num
= pa_get_absolute_expression (&the_insn
, &s
);
2877 CHECK_FIELD (num
, 671108864, 0, 0);
2878 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2880 /* Handle a 3 bit SFU identifier at 25. */
2883 as_bad (_("Invalid SFU identifier"));
2884 num
= pa_get_absolute_expression (&the_insn
, &s
);
2886 CHECK_FIELD (num
, 7, 0, 0);
2887 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2889 /* Handle a 20 bit SOP field for spop0. */
2891 num
= pa_get_absolute_expression (&the_insn
, &s
);
2893 CHECK_FIELD (num
, 1048575, 0, 0);
2894 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2895 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2897 /* Handle a 15bit SOP field for spop1. */
2899 num
= pa_get_absolute_expression (&the_insn
, &s
);
2901 CHECK_FIELD (num
, 32767, 0, 0);
2902 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2904 /* Handle a 10bit SOP field for spop3. */
2906 num
= pa_get_absolute_expression (&the_insn
, &s
);
2908 CHECK_FIELD (num
, 1023, 0, 0);
2909 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
2910 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2912 /* Handle a 15 bit SOP field for spop2. */
2914 num
= pa_get_absolute_expression (&the_insn
, &s
);
2916 CHECK_FIELD (num
, 32767, 0, 0);
2917 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
2918 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2920 /* Handle a 3-bit co-processor ID field. */
2923 as_bad (_("Invalid COPR identifier"));
2924 num
= pa_get_absolute_expression (&the_insn
, &s
);
2926 CHECK_FIELD (num
, 7, 0, 0);
2927 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2929 /* Handle a 22bit SOP field for copr. */
2931 num
= pa_get_absolute_expression (&the_insn
, &s
);
2933 CHECK_FIELD (num
, 4194303, 0, 0);
2934 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
2935 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2938 /* Handle a source FP operand format completer. */
2940 flag
= pa_parse_fp_format (&s
);
2941 the_insn
.fpof1
= flag
;
2942 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2944 /* Handle a destination FP operand format completer. */
2946 /* pa_parse_format needs the ',' prefix. */
2948 flag
= pa_parse_fp_format (&s
);
2949 the_insn
.fpof2
= flag
;
2950 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
2952 /* Handle a source FP operand format completer at 20. */
2954 flag
= pa_parse_fp_format (&s
);
2955 the_insn
.fpof1
= flag
;
2956 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2958 /* Handle L/R register halves like 't'. */
2961 struct pa_11_fp_reg_struct result
;
2963 pa_parse_number (&s
, &result
);
2964 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2965 opcode
|= result
.number_part
;
2967 /* 0x30 opcodes are FP arithmetic operation opcodes
2968 and need to be turned into 0x38 opcodes. This
2969 is not necessary for loads/stores. */
2970 if (need_pa11_opcode (&the_insn
, &result
)
2971 && ((opcode
& 0xfc000000) == 0x30000000))
2974 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
2977 /* Handle L/R register halves like 'b'. */
2980 struct pa_11_fp_reg_struct result
;
2982 pa_parse_number (&s
, &result
);
2983 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2984 opcode
|= result
.number_part
<< 21;
2985 if (need_pa11_opcode (&the_insn
, &result
))
2987 opcode
|= (result
.l_r_select
& 1) << 7;
2993 /* Float operand 1 similar to 'b' but with l/r registers. */
2996 struct pa_11_fp_reg_struct result
;
2998 pa_parse_number (&s
, &result
);
2999 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3000 opcode
|= result
.number_part
<< 21;
3001 opcode
|= (result
.l_r_select
& 1) << 7;
3005 /* Handle L/R register halves like 'b'. */
3008 struct pa_11_fp_reg_struct result
;
3011 pa_parse_number (&s
, &result
);
3012 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3013 opcode
|= (result
.number_part
& 0x1c) << 11;
3014 opcode
|= (result
.number_part
& 0x3) << 9;
3015 opcode
|= (result
.l_r_select
& 1) << 8;
3019 /* Handle L/R register halves like 'x'. */
3022 struct pa_11_fp_reg_struct result
;
3024 pa_parse_number (&s
, &result
);
3025 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3026 opcode
|= (result
.number_part
& 0x1f) << 16;
3027 if (need_pa11_opcode (&the_insn
, &result
))
3029 opcode
|= (result
.l_r_select
& 1) << 1;
3034 /* Handle L/R register halves like 'x'. */
3037 struct pa_11_fp_reg_struct result
;
3039 pa_parse_number (&s
, &result
);
3040 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3041 opcode
|= (result
.number_part
& 0x1f) << 16;
3042 if (need_pa11_opcode (&the_insn
, &result
))
3044 opcode
|= (result
.l_r_select
& 1) << 12;
3050 /* Float operand 2, like 'x' but with l/r register halves. */
3053 struct pa_11_fp_reg_struct result
;
3055 pa_parse_number (&s
, &result
);
3056 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3057 opcode
|= (result
.number_part
& 0x1f) << 16;
3058 opcode
|= (result
.l_r_select
& 1) << 12;
3062 /* Handle a 5 bit register field at 10. */
3065 struct pa_11_fp_reg_struct result
;
3067 pa_parse_number (&s
, &result
);
3068 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3069 if (the_insn
.fpof1
== SGL
)
3071 if (result
.number_part
< 16)
3073 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3077 result
.number_part
&= 0xF;
3078 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3080 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
3083 /* Handle a 5 bit register field at 15. */
3086 struct pa_11_fp_reg_struct result
;
3088 pa_parse_number (&s
, &result
);
3089 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3090 if (the_insn
.fpof1
== SGL
)
3092 if (result
.number_part
< 16)
3094 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3097 result
.number_part
&= 0xF;
3098 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3100 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
3103 /* Handle a 5 bit register field at 31. */
3106 struct pa_11_fp_reg_struct result
;
3108 pa_parse_number (&s
, &result
);
3109 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3110 if (the_insn
.fpof1
== SGL
)
3112 if (result
.number_part
< 16)
3114 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3117 result
.number_part
&= 0xF;
3118 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3120 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
3123 /* Handle a 5 bit register field at 20. */
3126 struct pa_11_fp_reg_struct result
;
3128 pa_parse_number (&s
, &result
);
3129 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3130 if (the_insn
.fpof1
== SGL
)
3132 if (result
.number_part
< 16)
3134 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3137 result
.number_part
&= 0xF;
3138 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3140 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
3143 /* Handle a 5 bit register field at 25. */
3146 struct pa_11_fp_reg_struct result
;
3148 pa_parse_number (&s
, &result
);
3149 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3150 if (the_insn
.fpof1
== SGL
)
3152 if (result
.number_part
< 16)
3154 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3157 result
.number_part
&= 0xF;
3158 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3160 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
3163 /* Handle a floating point operand format at 26.
3164 Only allows single and double precision. */
3166 flag
= pa_parse_fp_format (&s
);
3172 the_insn
.fpof1
= flag
;
3178 as_bad (_("Invalid Floating Point Operand Format."));
3189 /* Check if the args matched. */
3192 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
3193 && !strcmp (insn
->name
, insn
[1].name
))
3201 as_bad (_("Invalid operands %s"), error_message
);
3208 the_insn
.opcode
= opcode
;
3211 /* Turn a string in input_line_pointer into a floating point constant of type
3212 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3213 emitted is stored in *sizeP . An error message or NULL is returned. */
3215 #define MAX_LITTLENUMS 6
3218 md_atof (type
, litP
, sizeP
)
3224 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
3225 LITTLENUM_TYPE
*wordP
;
3257 return _("Bad call to MD_ATOF()");
3259 t
= atof_ieee (input_line_pointer
, type
, words
);
3261 input_line_pointer
= t
;
3262 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
3263 for (wordP
= words
; prec
--;)
3265 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
3266 litP
+= sizeof (LITTLENUM_TYPE
);
3271 /* Write out big-endian. */
3274 md_number_to_chars (buf
, val
, n
)
3279 number_to_chars_bigendian (buf
, val
, n
);
3282 /* Translate internal representation of relocation info to BFD target
3286 tc_gen_reloc (section
, fixp
)
3291 struct hppa_fix_struct
*hppa_fixp
;
3292 bfd_reloc_code_real_type code
;
3293 static arelent
*no_relocs
= NULL
;
3295 bfd_reloc_code_real_type
**codes
;
3299 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
3300 if (fixp
->fx_addsy
== 0)
3302 assert (hppa_fixp
!= 0);
3303 assert (section
!= 0);
3305 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
3307 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3308 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3309 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
3311 hppa_fixp
->fx_r_format
,
3312 hppa_fixp
->fx_r_field
,
3313 fixp
->fx_subsy
!= NULL
,
3314 symbol_get_bfdsym (fixp
->fx_addsy
));
3319 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
3322 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
3323 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
3324 for (i
= 0; i
< n_relocs
; i
++)
3325 relocs
[i
] = &reloc
[i
];
3327 relocs
[n_relocs
] = NULL
;
3330 switch (fixp
->fx_r_type
)
3333 assert (n_relocs
== 1);
3337 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3338 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3339 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3340 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3341 reloc
->addend
= 0; /* default */
3343 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
3345 /* Now, do any processing that is dependent on the relocation type. */
3348 case R_PARISC_DLTREL21L
:
3349 case R_PARISC_DLTREL14R
:
3350 case R_PARISC_DLTREL14F
:
3351 case R_PARISC_PLABEL32
:
3352 case R_PARISC_PLABEL21L
:
3353 case R_PARISC_PLABEL14R
:
3354 /* For plabel relocations, the addend of the
3355 relocation should be either 0 (no static link) or 2
3356 (static link required).
3358 FIXME: We always assume no static link!
3360 We also slam a zero addend into the DLT relative relocs;
3361 it doesn't make a lot of sense to use any addend since
3362 it gets you a different (eg unknown) DLT entry. */
3366 case R_PARISC_PCREL21L
:
3367 case R_PARISC_PCREL17R
:
3368 case R_PARISC_PCREL17F
:
3369 case R_PARISC_PCREL17C
:
3370 case R_PARISC_PCREL14R
:
3371 case R_PARISC_PCREL14F
:
3372 /* The constant is stored in the instruction. */
3373 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3376 reloc
->addend
= fixp
->fx_offset
;
3383 /* Walk over reach relocation returned by the BFD backend. */
3384 for (i
= 0; i
< n_relocs
; i
++)
3388 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3389 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3390 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3391 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3396 /* The only time we ever use a R_COMP2 fixup is for the difference
3397 of two symbols. With that in mind we fill in all four
3398 relocs now and break out of the loop. */
3400 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3401 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
3402 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3403 relocs
[0]->addend
= 0;
3404 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3405 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3406 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
3407 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3408 relocs
[1]->addend
= 0;
3409 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3410 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3411 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3412 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3413 relocs
[2]->addend
= 0;
3414 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3415 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3416 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3417 relocs
[3]->addend
= 0;
3418 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3419 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3420 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3421 relocs
[4]->addend
= 0;
3425 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3431 /* For plabel relocations, the addend of the
3432 relocation should be either 0 (no static link) or 2
3433 (static link required).
3435 FIXME: We always assume no static link!
3437 We also slam a zero addend into the DLT relative relocs;
3438 it doesn't make a lot of sense to use any addend since
3439 it gets you a different (eg unknown) DLT entry. */
3440 relocs
[i
]->addend
= 0;
3455 /* There is no symbol or addend associated with these fixups. */
3456 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3457 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3458 relocs
[i
]->addend
= 0;
3464 /* There is no symbol associated with these fixups. */
3465 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3466 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3467 relocs
[i
]->addend
= fixp
->fx_offset
;
3471 relocs
[i
]->addend
= fixp
->fx_offset
;
3481 /* Process any machine dependent frag types. */
3484 md_convert_frag (abfd
, sec
, fragP
)
3486 register asection
*sec
;
3487 register fragS
*fragP
;
3489 unsigned int address
;
3491 if (fragP
->fr_type
== rs_machine_dependent
)
3493 switch ((int) fragP
->fr_subtype
)
3496 fragP
->fr_type
= rs_fill
;
3497 know (fragP
->fr_var
== 1);
3498 know (fragP
->fr_next
);
3499 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3500 if (address
% fragP
->fr_offset
)
3503 fragP
->fr_next
->fr_address
3508 fragP
->fr_offset
= 0;
3514 /* Round up a section size to the appropriate boundary. */
3517 md_section_align (segment
, size
)
3521 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3522 int align2
= (1 << align
) - 1;
3524 return (size
+ align2
) & ~align2
;
3527 /* Return the approximate size of a frag before relaxation has occurred. */
3529 md_estimate_size_before_relax (fragP
, segment
)
3530 register fragS
*fragP
;
3537 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3543 CONST
char *md_shortopts
= "";
3544 struct option md_longopts
[] = {
3545 {NULL
, no_argument
, NULL
, 0}
3547 size_t md_longopts_size
= sizeof(md_longopts
);
3550 md_parse_option (c
, arg
)
3558 md_show_usage (stream
)
3563 /* We have no need to default values of symbols. */
3566 md_undefined_symbol (name
)
3572 /* Apply a fixup to an instruction. */
3575 md_apply_fix (fixP
, valp
)
3579 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3580 struct hppa_fix_struct
*hppa_fixP
;
3581 long new_val
, result
= 0;
3582 unsigned int w1
, w2
, w
, resulti
;
3584 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3585 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3586 never be "applied" (they are just markers). Likewise for
3587 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3589 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3590 || fixP
->fx_r_type
== R_HPPA_EXIT
3591 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3592 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3593 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3596 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3597 fixups are considered not adjustable, which in turn causes
3598 adjust_reloc_syms to not set fx_offset. Ugh. */
3599 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3601 fixP
->fx_offset
= *valp
;
3606 /* There should have been an HPPA specific fixup associated
3607 with the GAS fixup. */
3610 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3611 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3613 /* If there is a symbol associated with this fixup, then it's something
3614 which will need a SOM relocation (except for some PC-relative relocs).
3615 In such cases we should treat the "val" or "addend" as zero since it
3616 will be added in as needed from fx_offset in tc_gen_reloc. */
3617 if ((fixP
->fx_addsy
!= NULL
3618 || fixP
->fx_r_type
== R_HPPA_NONE
)
3623 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3625 /* These field selectors imply that we do not want an addend. */
3626 else if (hppa_fixP
->fx_r_field
== e_psel
3627 || hppa_fixP
->fx_r_field
== e_rpsel
3628 || hppa_fixP
->fx_r_field
== e_lpsel
3629 || hppa_fixP
->fx_r_field
== e_tsel
3630 || hppa_fixP
->fx_r_field
== e_rtsel
3631 || hppa_fixP
->fx_r_field
== e_ltsel
)
3632 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3633 /* This is truely disgusting. The machine independent code blindly
3634 adds in the value of the symbol being relocated against. Damn! */
3636 && fixP
->fx_addsy
!= NULL
3637 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3638 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3639 0, hppa_fixP
->fx_r_field
);
3642 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3644 /* Handle pc-relative exceptions from above. */
3645 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3646 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3647 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3651 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3652 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3653 hppa_fixP
->fx_arg_reloc
)
3655 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3656 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3658 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3660 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3661 #undef arg_reloc_stub_needed
3665 /* Handle all opcodes with the 'j' operand type. */
3667 CHECK_FIELD (new_val
, 8191, -8192, 0);
3669 /* Mask off 14 bits to be changed. */
3670 bfd_put_32 (stdoutput
,
3671 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3673 low_sign_unext (new_val
, 14, &resulti
);
3677 /* Handle all opcodes with the 'k' operand type. */
3679 CHECK_FIELD (new_val
, 2097152, 0, 0);
3681 /* Mask off 21 bits to be changed. */
3682 bfd_put_32 (stdoutput
,
3683 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3685 dis_assemble_21 (new_val
, &resulti
);
3689 /* Handle all the opcodes with the 'i' operand type. */
3691 CHECK_FIELD (new_val
, 1023, -1023, 0);
3693 /* Mask off 11 bits to be changed. */
3694 bfd_put_32 (stdoutput
,
3695 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3697 low_sign_unext (new_val
, 11, &resulti
);
3701 /* Handle all the opcodes with the 'w' operand type. */
3703 CHECK_FIELD (new_val
, 8199, -8184, 0);
3705 /* Mask off 11 bits to be changed. */
3706 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3707 bfd_put_32 (stdoutput
,
3708 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3711 dis_assemble_12 (resulti
, &w1
, &w
);
3712 result
= ((w1
<< 2) | w
);
3715 /* Handle some of the opcodes with the 'W' operand type. */
3718 int distance
= *valp
;
3720 CHECK_FIELD (new_val
, 262143, -262144, 0);
3722 /* If this is an absolute branch (ie no link) with an out of
3723 range target, then we want to complain. */
3724 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3725 && (distance
> 262143 || distance
< -262144)
3726 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3727 CHECK_FIELD (distance
, 262143, -262144, 0);
3729 /* Mask off 17 bits to be changed. */
3730 bfd_put_32 (stdoutput
,
3731 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3733 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3734 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3735 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3741 bfd_put_32 (stdoutput
, new_val
, buf
);
3745 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3749 /* Insert the relocation. */
3750 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3755 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3756 (unsigned int) fixP
, fixP
->fx_r_type
);
3761 /* Exactly what point is a PC-relative offset relative TO?
3762 On the PA, they're relative to the address of the offset. */
3765 md_pcrel_from (fixP
)
3768 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3771 /* Return nonzero if the input line pointer is at the end of
3775 is_end_of_statement ()
3777 return ((*input_line_pointer
== '\n')
3778 || (*input_line_pointer
== ';')
3779 || (*input_line_pointer
== '!'));
3782 /* Read a number from S. The number might come in one of many forms,
3783 the most common will be a hex or decimal constant, but it could be
3784 a pre-defined register (Yuk!), or an absolute symbol.
3786 Return a number or -1 for failure.
3788 When parsing PA-89 FP register numbers RESULT will be
3789 the address of a structure to return information about
3790 L/R half of FP registers, store results there as appropriate.
3792 pa_parse_number can not handle negative constants and will fail
3793 horribly if it is passed such a constant. */
3796 pa_parse_number (s
, result
)
3798 struct pa_11_fp_reg_struct
*result
;
3807 /* Skip whitespace before the number. */
3808 while (*p
== ' ' || *p
== '\t')
3811 /* Store info in RESULT if requested by caller. */
3814 result
->number_part
= -1;
3815 result
->l_r_select
= -1;
3821 /* Looks like a number. */
3824 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3826 /* The number is specified in hex. */
3828 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3829 || ((*p
>= 'A') && (*p
<= 'F')))
3832 num
= num
* 16 + *p
- '0';
3833 else if (*p
>= 'a' && *p
<= 'f')
3834 num
= num
* 16 + *p
- 'a' + 10;
3836 num
= num
* 16 + *p
- 'A' + 10;
3842 /* The number is specified in decimal. */
3843 while (isdigit (*p
))
3845 num
= num
* 10 + *p
- '0';
3850 /* Store info in RESULT if requested by the caller. */
3853 result
->number_part
= num
;
3855 if (IS_R_SELECT (p
))
3857 result
->l_r_select
= 1;
3860 else if (IS_L_SELECT (p
))
3862 result
->l_r_select
= 0;
3866 result
->l_r_select
= 0;
3871 /* The number might be a predefined register. */
3876 /* Tege hack: Special case for general registers as the general
3877 code makes a binary search with case translation, and is VERY
3882 if (*p
== 'e' && *(p
+ 1) == 't'
3883 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3886 num
= *p
- '0' + 28;
3894 else if (!isdigit (*p
))
3897 as_bad (_("Undefined register: '%s'."), name
);
3903 num
= num
* 10 + *p
++ - '0';
3904 while (isdigit (*p
));
3909 /* Do a normal register search. */
3910 while (is_part_of_name (c
))
3916 status
= reg_name_search (name
);
3922 as_bad (_("Undefined register: '%s'."), name
);
3928 /* Store info in RESULT if requested by caller. */
3931 result
->number_part
= num
;
3932 if (IS_R_SELECT (p
- 1))
3933 result
->l_r_select
= 1;
3934 else if (IS_L_SELECT (p
- 1))
3935 result
->l_r_select
= 0;
3937 result
->l_r_select
= 0;
3942 /* And finally, it could be a symbol in the absolute section which
3943 is effectively a constant. */
3947 while (is_part_of_name (c
))
3953 if ((sym
= symbol_find (name
)) != NULL
)
3955 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3956 num
= S_GET_VALUE (sym
);
3960 as_bad (_("Non-absolute symbol: '%s'."), name
);
3966 /* There is where we'd come for an undefined symbol
3967 or for an empty string. For an empty string we
3968 will return zero. That's a concession made for
3969 compatability with the braindamaged HP assemblers. */
3975 as_bad (_("Undefined absolute constant: '%s'."), name
);
3981 /* Store info in RESULT if requested by caller. */
3984 result
->number_part
= num
;
3985 if (IS_R_SELECT (p
- 1))
3986 result
->l_r_select
= 1;
3987 else if (IS_L_SELECT (p
- 1))
3988 result
->l_r_select
= 0;
3990 result
->l_r_select
= 0;
3998 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
4000 /* Given NAME, find the register number associated with that name, return
4001 the integer value associated with the given name or -1 on failure. */
4004 reg_name_search (name
)
4007 int middle
, low
, high
;
4011 high
= REG_NAME_CNT
- 1;
4015 middle
= (low
+ high
) / 2;
4016 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
4022 return pre_defined_registers
[middle
].value
;
4024 while (low
<= high
);
4030 /* Return nonzero if the given INSN and L/R information will require
4031 a new PA-1.1 opcode. */
4034 need_pa11_opcode (insn
, result
)
4036 struct pa_11_fp_reg_struct
*result
;
4038 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
4040 /* If this instruction is specific to a particular architecture,
4041 then set a new architecture. */
4042 if (bfd_get_mach (stdoutput
) < pa11
)
4044 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
4045 as_warn (_("could not update architecture and machine"));
4053 /* Parse a condition for a fcmp instruction. Return the numerical
4054 code associated with the condition. */
4057 pa_parse_fp_cmp_cond (s
)
4064 for (i
= 0; i
< 32; i
++)
4066 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
4067 strlen (fp_cond_map
[i
].string
)) == 0)
4069 cond
= fp_cond_map
[i
].cond
;
4070 *s
+= strlen (fp_cond_map
[i
].string
);
4071 /* If not a complete match, back up the input string and
4073 if (**s
!= ' ' && **s
!= '\t')
4075 *s
-= strlen (fp_cond_map
[i
].string
);
4078 while (**s
== ' ' || **s
== '\t')
4084 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
4086 /* Advance over the bogus completer. */
4087 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4094 /* Parse an FP operand format completer returning the completer
4097 static fp_operand_format
4098 pa_parse_fp_format (s
)
4107 if (strncasecmp (*s
, "sgl", 3) == 0)
4112 else if (strncasecmp (*s
, "dbl", 3) == 0)
4117 else if (strncasecmp (*s
, "quad", 4) == 0)
4124 format
= ILLEGAL_FMT
;
4125 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
4132 /* Convert from a selector string into a selector type. */
4135 pa_chk_field_selector (str
)
4138 int middle
, low
, high
;
4142 /* Read past any whitespace. */
4143 /* FIXME: should we read past newlines and formfeeds??? */
4144 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
4147 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
4148 name
[0] = tolower ((*str
)[0]),
4150 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
4151 name
[0] = tolower ((*str
)[0]),
4152 name
[1] = tolower ((*str
)[1]),
4154 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
4155 name
[0] = tolower ((*str
)[0]),
4156 name
[1] = tolower ((*str
)[1]),
4157 name
[2] = tolower ((*str
)[2]),
4163 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
4167 middle
= (low
+ high
) / 2;
4168 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
4175 *str
+= strlen (name
) + 1;
4177 if (selector_table
[middle
].field_selector
== e_nsel
)
4180 return selector_table
[middle
].field_selector
;
4183 while (low
<= high
);
4188 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
4191 get_expression (str
)
4197 save_in
= input_line_pointer
;
4198 input_line_pointer
= str
;
4199 seg
= expression (&the_insn
.exp
);
4200 if (!(seg
== absolute_section
4201 || seg
== undefined_section
4202 || SEG_NORMAL (seg
)))
4204 as_warn (_("Bad segment in expression."));
4205 expr_end
= input_line_pointer
;
4206 input_line_pointer
= save_in
;
4209 expr_end
= input_line_pointer
;
4210 input_line_pointer
= save_in
;
4214 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
4216 pa_get_absolute_expression (insn
, strp
)
4222 insn
->field_selector
= pa_chk_field_selector (strp
);
4223 save_in
= input_line_pointer
;
4224 input_line_pointer
= *strp
;
4225 expression (&insn
->exp
);
4226 /* This is not perfect, but is a huge improvement over doing nothing.
4228 The PA assembly syntax is ambigious in a variety of ways. Consider
4229 this string "4 %r5" Is that the number 4 followed by the register
4230 r5, or is that 4 MOD 5?
4232 If we get a modulo expresion When looking for an absolute, we try
4233 again cutting off the input string at the first whitespace character. */
4234 if (insn
->exp
.X_op
== O_modulus
)
4239 input_line_pointer
= *strp
;
4241 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4247 retval
= pa_get_absolute_expression (insn
, strp
);
4249 input_line_pointer
= save_in
;
4251 return evaluate_absolute (insn
);
4253 if (insn
->exp
.X_op
!= O_constant
)
4255 as_bad (_("Bad segment (should be absolute)."));
4256 expr_end
= input_line_pointer
;
4257 input_line_pointer
= save_in
;
4260 expr_end
= input_line_pointer
;
4261 input_line_pointer
= save_in
;
4262 return evaluate_absolute (insn
);
4265 /* Evaluate an absolute expression EXP which may be modified by
4266 the selector FIELD_SELECTOR. Return the value of the expression. */
4268 evaluate_absolute (insn
)
4273 int field_selector
= insn
->field_selector
;
4276 value
= exp
.X_add_number
;
4278 switch (field_selector
)
4284 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4286 if (value
& 0x00000400)
4288 value
= (value
& 0xfffff800) >> 11;
4291 /* Sign extend from bit 21. */
4293 if (value
& 0x00000400)
4294 value
|= 0xfffff800;
4299 /* Arithmetic shift right 11 bits. */
4301 value
= (value
& 0xfffff800) >> 11;
4304 /* Set bits 0-20 to zero. */
4306 value
= value
& 0x7ff;
4309 /* Add 0x800 and arithmetic shift right 11 bits. */
4312 value
= (value
& 0xfffff800) >> 11;
4315 /* Set bitgs 0-21 to one. */
4317 value
|= 0xfffff800;
4320 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
4322 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
4326 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
4331 BAD_CASE (field_selector
);
4337 /* Given an argument location specification return the associated
4338 argument location number. */
4341 pa_build_arg_reloc (type_name
)
4345 if (strncasecmp (type_name
, "no", 2) == 0)
4347 if (strncasecmp (type_name
, "gr", 2) == 0)
4349 else if (strncasecmp (type_name
, "fr", 2) == 0)
4351 else if (strncasecmp (type_name
, "fu", 2) == 0)
4354 as_bad (_("Invalid argument location: %s\n"), type_name
);
4359 /* Encode and return an argument relocation specification for
4360 the given register in the location specified by arg_reloc. */
4363 pa_align_arg_reloc (reg
, arg_reloc
)
4365 unsigned int arg_reloc
;
4367 unsigned int new_reloc
;
4369 new_reloc
= arg_reloc
;
4385 as_bad (_("Invalid argument description: %d"), reg
);
4391 /* Parse a PA nullification completer (,n). Return nonzero if the
4392 completer was found; return zero if no completer was found. */
4404 if (strncasecmp (*s
, "n", 1) == 0)
4408 as_bad (_("Invalid Nullification: (%c)"), **s
);
4417 /* Parse a non-negated compare/subtract completer returning the
4418 number (for encoding in instrutions) of the given completer.
4420 ISBRANCH specifies whether or not this is parsing a condition
4421 completer for a branch (vs a nullification completer for a
4422 computational instruction. */
4425 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4430 char *name
= *s
+ 1;
4439 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4445 if (strcmp (name
, "=") == 0)
4449 else if (strcmp (name
, "<") == 0)
4453 else if (strcmp (name
, "<=") == 0)
4457 else if (strcmp (name
, "<<") == 0)
4461 else if (strcmp (name
, "<<=") == 0)
4465 else if (strcasecmp (name
, "sv") == 0)
4469 else if (strcasecmp (name
, "od") == 0)
4473 /* If we have something like addb,n then there is no condition
4475 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4487 /* Reset pointers if this was really a ,n for a branch instruction. */
4495 /* Parse a negated compare/subtract completer returning the
4496 number (for encoding in instrutions) of the given completer.
4498 ISBRANCH specifies whether or not this is parsing a condition
4499 completer for a branch (vs a nullification completer for a
4500 computational instruction. */
4503 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4508 char *name
= *s
+ 1;
4517 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4523 if (strcasecmp (name
, "tr") == 0)
4527 else if (strcmp (name
, "<>") == 0)
4531 else if (strcmp (name
, ">=") == 0)
4535 else if (strcmp (name
, ">") == 0)
4539 else if (strcmp (name
, ">>=") == 0)
4543 else if (strcmp (name
, ">>") == 0)
4547 else if (strcasecmp (name
, "nsv") == 0)
4551 else if (strcasecmp (name
, "ev") == 0)
4555 /* If we have something like addb,n then there is no condition
4557 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4569 /* Reset pointers if this was really a ,n for a branch instruction. */
4578 /* Parse a non-negated addition completer returning the number
4579 (for encoding in instrutions) of the given completer.
4581 ISBRANCH specifies whether or not this is parsing a condition
4582 completer for a branch (vs a nullification completer for a
4583 computational instruction. */
4586 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4591 char *name
= *s
+ 1;
4599 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4603 if (strcmp (name
, "=") == 0)
4607 else if (strcmp (name
, "<") == 0)
4611 else if (strcmp (name
, "<=") == 0)
4615 else if (strcasecmp (name
, "nuv") == 0)
4619 else if (strcasecmp (name
, "znv") == 0)
4623 else if (strcasecmp (name
, "sv") == 0)
4627 else if (strcasecmp (name
, "od") == 0)
4631 /* If we have something like addb,n then there is no condition
4633 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4644 /* Reset pointers if this was really a ,n for a branch instruction. */
4645 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4651 /* Parse a negated addition completer returning the number
4652 (for encoding in instrutions) of the given completer.
4654 ISBRANCH specifies whether or not this is parsing a condition
4655 completer for a branch (vs a nullification completer for a
4656 computational instruction). */
4659 pa_parse_neg_add_cmpltr (s
, isbranch
)
4664 char *name
= *s
+ 1;
4672 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4676 if (strcasecmp (name
, "tr") == 0)
4680 else if (strcmp (name
, "<>") == 0)
4684 else if (strcmp (name
, ">=") == 0)
4688 else if (strcmp (name
, ">") == 0)
4692 else if (strcasecmp (name
, "uv") == 0)
4696 else if (strcasecmp (name
, "vnz") == 0)
4700 else if (strcasecmp (name
, "nsv") == 0)
4704 else if (strcasecmp (name
, "ev") == 0)
4708 /* If we have something like addb,n then there is no condition
4710 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4721 /* Reset pointers if this was really a ,n for a branch instruction. */
4722 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4729 /* Handle an alignment directive. Special so that we can update the
4730 alignment of the subspace if necessary. */
4734 /* We must have a valid space and subspace. */
4735 pa_check_current_space_and_subspace ();
4737 /* Let the generic gas code do most of the work. */
4738 s_align_bytes (bytes
);
4740 /* If bytes is a power of 2, then update the current subspace's
4741 alignment if necessary. */
4742 if (log2 (bytes
) != -1)
4743 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4747 /* Handle a .BLOCK type pseudo-op. */
4755 unsigned int temp_size
;
4759 /* We must have a valid space and subspace. */
4760 pa_check_current_space_and_subspace ();
4763 temp_size
= get_absolute_expression ();
4765 /* Always fill with zeros, that's what the HP assembler does. */
4768 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4769 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4770 memset (p
, 0, temp_size
);
4772 /* Convert 2 bytes at a time. */
4774 for (i
= 0; i
< temp_size
; i
+= 2)
4776 md_number_to_chars (p
+ i
,
4778 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4781 pa_undefine_label ();
4782 demand_empty_rest_of_line ();
4785 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4793 /* The BRTAB relocations are only availble in SOM (to denote
4794 the beginning and end of branch tables). */
4795 char *where
= frag_more (0);
4797 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4798 NULL
, (offsetT
) 0, NULL
,
4799 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4800 e_fsel
, 0, 0, NULL
);
4803 demand_empty_rest_of_line ();
4806 /* Handle a .begin_try and .end_try pseudo-op. */
4814 char *where
= frag_more (0);
4819 /* The TRY relocations are only availble in SOM (to denote
4820 the beginning and end of exception handling regions). */
4822 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4823 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4824 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4825 e_fsel
, 0, 0, NULL
);
4828 demand_empty_rest_of_line ();
4831 /* Handle a .CALL pseudo-op. This involves storing away information
4832 about where arguments are to be found so the linker can detect
4833 (and correct) argument location mismatches between caller and callee. */
4840 /* We must have a valid space and subspace. */
4841 pa_check_current_space_and_subspace ();
4844 pa_call_args (&last_call_desc
);
4845 demand_empty_rest_of_line ();
4848 /* Do the dirty work of building a call descriptor which describes
4849 where the caller placed arguments to a function call. */
4852 pa_call_args (call_desc
)
4853 struct call_desc
*call_desc
;
4856 unsigned int temp
, arg_reloc
;
4858 while (!is_end_of_statement ())
4860 name
= input_line_pointer
;
4861 c
= get_symbol_end ();
4862 /* Process a source argument. */
4863 if ((strncasecmp (name
, "argw", 4) == 0))
4865 temp
= atoi (name
+ 4);
4866 p
= input_line_pointer
;
4868 input_line_pointer
++;
4869 name
= input_line_pointer
;
4870 c
= get_symbol_end ();
4871 arg_reloc
= pa_build_arg_reloc (name
);
4872 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4874 /* Process a return value. */
4875 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4877 p
= input_line_pointer
;
4879 input_line_pointer
++;
4880 name
= input_line_pointer
;
4881 c
= get_symbol_end ();
4882 arg_reloc
= pa_build_arg_reloc (name
);
4883 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4887 as_bad (_("Invalid .CALL argument: %s"), name
);
4889 p
= input_line_pointer
;
4891 if (!is_end_of_statement ())
4892 input_line_pointer
++;
4896 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4899 is_same_frag (frag1
, frag2
)
4906 else if (frag2
== NULL
)
4908 else if (frag1
== frag2
)
4910 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4911 return (is_same_frag (frag1
, frag2
->fr_next
));
4917 /* Build an entry in the UNWIND subspace from the given function
4918 attributes in CALL_INFO. This is not needed for SOM as using
4919 R_ENTRY and R_EXIT relocations allow the linker to handle building
4920 of the unwind spaces. */
4923 pa_build_unwind_subspace (call_info
)
4924 struct call_info
*call_info
;
4927 asection
*seg
, *save_seg
;
4929 subsegT subseg
, save_subseg
;
4933 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
4934 reloc
= R_PARISC_DIR32
;
4936 reloc
= R_PARISC_SEGREL32
;
4938 /* Get into the right seg/subseg. This may involve creating
4939 the seg the first time through. Make sure to have the
4940 old seg/subseg so that we can reset things when we are done. */
4941 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4942 if (seg
== ASEC_NULL
)
4944 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4945 bfd_set_section_flags (stdoutput
, seg
,
4946 SEC_READONLY
| SEC_HAS_CONTENTS
4947 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
4948 bfd_set_section_alignment (stdoutput
, seg
, 2);
4952 save_subseg
= now_subseg
;
4953 subseg_set (seg
, 0);
4956 /* Get some space to hold relocation information for the unwind
4959 md_number_to_chars (p
, 0, 4);
4961 /* Relocation info. for start offset of the function. */
4962 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4963 call_info
->start_symbol
, (offsetT
) 0,
4964 (expressionS
*) NULL
, 0, reloc
,
4965 e_fsel
, 32, 0, NULL
);
4968 md_number_to_chars (p
, 0, 4);
4970 /* Relocation info. for end offset of the function.
4972 Because we allow reductions of 32bit relocations for ELF, this will be
4973 reduced to section_sym + offset which avoids putting the temporary
4974 symbol into the symbol table. It (should) end up giving the same
4975 value as call_info->start_symbol + function size once the linker is
4976 finished with its work. */
4978 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4979 call_info
->end_symbol
, (offsetT
) 0,
4980 (expressionS
*) NULL
, 0, reloc
,
4981 e_fsel
, 32, 0, NULL
);
4984 unwind
= (char *) &call_info
->ci_unwind
;
4985 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4989 FRAG_APPEND_1_CHAR (c
);
4993 /* Return back to the original segment/subsegment. */
4994 subseg_set (save_seg
, save_subseg
);
4998 /* Process a .CALLINFO pseudo-op. This information is used later
4999 to build unwind descriptors and maybe one day to support
5000 .ENTER and .LEAVE. */
5003 pa_callinfo (unused
)
5010 /* We must have a valid space and subspace. */
5011 pa_check_current_space_and_subspace ();
5014 /* .CALLINFO must appear within a procedure definition. */
5015 if (!within_procedure
)
5016 as_bad (_(".callinfo is not within a procedure definition"));
5018 /* Mark the fact that we found the .CALLINFO for the
5019 current procedure. */
5020 callinfo_found
= TRUE
;
5022 /* Iterate over the .CALLINFO arguments. */
5023 while (!is_end_of_statement ())
5025 name
= input_line_pointer
;
5026 c
= get_symbol_end ();
5027 /* Frame size specification. */
5028 if ((strncasecmp (name
, "frame", 5) == 0))
5030 p
= input_line_pointer
;
5032 input_line_pointer
++;
5033 temp
= get_absolute_expression ();
5034 if ((temp
& 0x3) != 0)
5036 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
5040 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5041 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
5044 /* Entry register (GR, GR and SR) specifications. */
5045 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
5047 p
= input_line_pointer
;
5049 input_line_pointer
++;
5050 temp
= get_absolute_expression ();
5051 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5052 even though %r19 is caller saved. I think this is a bug in
5053 the HP assembler, and we are not going to emulate it. */
5054 if (temp
< 3 || temp
> 18)
5055 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5056 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
5058 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
5060 p
= input_line_pointer
;
5062 input_line_pointer
++;
5063 temp
= get_absolute_expression ();
5064 /* Similarly the HP assembler takes 31 as the high bound even
5065 though %fr21 is the last callee saved floating point register. */
5066 if (temp
< 12 || temp
> 21)
5067 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5068 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
5070 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
5072 p
= input_line_pointer
;
5074 input_line_pointer
++;
5075 temp
= get_absolute_expression ();
5077 as_bad (_("Value for ENTRY_SR must be 3\n"));
5079 /* Note whether or not this function performs any calls. */
5080 else if ((strncasecmp (name
, "calls", 5) == 0) ||
5081 (strncasecmp (name
, "caller", 6) == 0))
5083 p
= input_line_pointer
;
5086 else if ((strncasecmp (name
, "no_calls", 8) == 0))
5088 p
= input_line_pointer
;
5091 /* Should RP be saved into the stack. */
5092 else if ((strncasecmp (name
, "save_rp", 7) == 0))
5094 p
= input_line_pointer
;
5096 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
5098 /* Likewise for SP. */
5099 else if ((strncasecmp (name
, "save_sp", 7) == 0))
5101 p
= input_line_pointer
;
5103 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
5105 /* Is this an unwindable procedure. If so mark it so
5106 in the unwind descriptor. */
5107 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
5109 p
= input_line_pointer
;
5111 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
5113 /* Is this an interrupt routine. If so mark it in the
5114 unwind descriptor. */
5115 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
5117 p
= input_line_pointer
;
5119 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
5121 /* Is this a millicode routine. "millicode" isn't in my
5122 assembler manual, but my copy is old. The HP assembler
5123 accepts it, and there's a place in the unwind descriptor
5124 to drop the information, so we'll accept it too. */
5125 else if ((strncasecmp (name
, "millicode", 9) == 0))
5127 p
= input_line_pointer
;
5129 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
5133 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
5134 *input_line_pointer
= c
;
5136 if (!is_end_of_statement ())
5137 input_line_pointer
++;
5140 demand_empty_rest_of_line ();
5143 /* Switch into the code subspace. */
5150 current_space
= is_defined_space ("$TEXT$");
5152 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
5155 pa_undefine_label ();
5158 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5159 the .comm pseudo-op has the following symtax:
5161 <label> .comm <length>
5163 where <label> is optional and is a symbol whose address will be the start of
5164 a block of memory <length> bytes long. <length> must be an absolute
5165 expression. <length> bytes will be allocated in the current space
5168 Also note the label may not even be on the same line as the .comm.
5170 This difference in syntax means the colon function will be called
5171 on the symbol before we arrive in pa_comm. colon will set a number
5172 of attributes of the symbol that need to be fixed here. In particular
5173 the value, section pointer, fragment pointer, flags, etc. What
5176 This also makes error detection all but impossible. */
5184 label_symbol_struct
*label_symbol
= pa_get_label ();
5187 symbol
= label_symbol
->lss_label
;
5192 size
= get_absolute_expression ();
5196 S_SET_VALUE (symbol
, size
);
5197 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5198 S_SET_EXTERNAL (symbol
);
5200 /* colon() has already set the frag to the current location in the
5201 current subspace; we need to reset the fragment to the zero address
5202 fragment. We also need to reset the segment pointer. */
5203 symbol_set_frag (symbol
, &zero_address_frag
);
5205 demand_empty_rest_of_line ();
5208 /* Process a .END pseudo-op. */
5214 demand_empty_rest_of_line ();
5217 /* Process a .ENTER pseudo-op. This is not supported. */
5223 /* We must have a valid space and subspace. */
5224 pa_check_current_space_and_subspace ();
5227 as_bad (_("The .ENTER pseudo-op is not supported"));
5228 demand_empty_rest_of_line ();
5231 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5238 /* We must have a valid space and subspace. */
5239 pa_check_current_space_and_subspace ();
5242 if (!within_procedure
)
5243 as_bad (_("Misplaced .entry. Ignored."));
5246 if (!callinfo_found
)
5247 as_bad (_("Missing .callinfo."));
5249 demand_empty_rest_of_line ();
5250 within_entry_exit
= TRUE
;
5253 /* SOM defers building of unwind descriptors until the link phase.
5254 The assembler is responsible for creating an R_ENTRY relocation
5255 to mark the beginning of a region and hold the unwind bits, and
5256 for creating an R_EXIT relocation to mark the end of the region.
5258 FIXME. ELF should be using the same conventions! The problem
5259 is an unwind requires too much relocation space. Hmmm. Maybe
5260 if we split the unwind bits up between the relocations which
5261 denote the entry and exit points. */
5262 if (last_call_info
->start_symbol
!= NULL
)
5264 char *where
= frag_more (0);
5266 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5267 NULL
, (offsetT
) 0, NULL
,
5268 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5269 (int *) &last_call_info
->ci_unwind
.descriptor
);
5274 /* Handle a .EQU pseudo-op. */
5280 label_symbol_struct
*label_symbol
= pa_get_label ();
5285 symbol
= label_symbol
->lss_label
;
5287 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
5289 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
5290 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
5295 as_bad (_(".REG must use a label"));
5297 as_bad (_(".EQU must use a label"));
5300 pa_undefine_label ();
5301 demand_empty_rest_of_line ();
5304 /* Helper function. Does processing for the end of a function. This
5305 usually involves creating some relocations or building special
5306 symbols to mark the end of the function. */
5313 where
= frag_more (0);
5316 /* Mark the end of the function, stuff away the location of the frag
5317 for the end of the function, and finally call pa_build_unwind_subspace
5318 to add an entry in the unwind table. */
5319 hppa_elf_mark_end_of_function ();
5320 pa_build_unwind_subspace (last_call_info
);
5322 /* SOM defers building of unwind descriptors until the link phase.
5323 The assembler is responsible for creating an R_ENTRY relocation
5324 to mark the beginning of a region and hold the unwind bits, and
5325 for creating an R_EXIT relocation to mark the end of the region.
5327 FIXME. ELF should be using the same conventions! The problem
5328 is an unwind requires too much relocation space. Hmmm. Maybe
5329 if we split the unwind bits up between the relocations which
5330 denote the entry and exit points. */
5331 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5333 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
5334 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
5338 /* Process a .EXIT pseudo-op. */
5345 /* We must have a valid space and subspace. */
5346 pa_check_current_space_and_subspace ();
5349 if (!within_procedure
)
5350 as_bad (_(".EXIT must appear within a procedure"));
5353 if (!callinfo_found
)
5354 as_bad (_("Missing .callinfo"));
5357 if (!within_entry_exit
)
5358 as_bad (_("No .ENTRY for this .EXIT"));
5361 within_entry_exit
= FALSE
;
5366 demand_empty_rest_of_line ();
5369 /* Process a .EXPORT directive. This makes functions external
5370 and provides information such as argument relocation entries
5380 name
= input_line_pointer
;
5381 c
= get_symbol_end ();
5382 /* Make sure the given symbol exists. */
5383 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5385 as_bad (_("Cannot define export symbol: %s\n"), name
);
5386 p
= input_line_pointer
;
5388 input_line_pointer
++;
5392 /* OK. Set the external bits and process argument relocations. */
5393 S_SET_EXTERNAL (symbol
);
5394 p
= input_line_pointer
;
5396 if (!is_end_of_statement ())
5398 input_line_pointer
++;
5399 pa_type_args (symbol
, 1);
5403 demand_empty_rest_of_line ();
5406 /* Helper function to process arguments to a .EXPORT pseudo-op. */
5409 pa_type_args (symbolP
, is_export
)
5414 unsigned int temp
, arg_reloc
;
5415 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5416 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5418 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5421 input_line_pointer
+= 8;
5422 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5423 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5424 type
= SYMBOL_TYPE_ABSOLUTE
;
5426 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5428 input_line_pointer
+= 4;
5429 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5430 instead one should be IMPORTing/EXPORTing ENTRY types.
5432 Complain if one tries to EXPORT a CODE type since that's never
5433 done. Both GCC and HP C still try to IMPORT CODE types, so
5434 silently fix them to be ENTRY types. */
5435 if (S_IS_FUNCTION (symbolP
))
5438 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5439 S_GET_NAME (symbolP
));
5441 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5442 type
= SYMBOL_TYPE_ENTRY
;
5446 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5447 type
= SYMBOL_TYPE_CODE
;
5450 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5452 input_line_pointer
+= 4;
5453 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5454 type
= SYMBOL_TYPE_DATA
;
5456 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5458 input_line_pointer
+= 5;
5459 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5460 type
= SYMBOL_TYPE_ENTRY
;
5462 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5464 input_line_pointer
+= 9;
5465 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5466 type
= SYMBOL_TYPE_MILLICODE
;
5468 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5470 input_line_pointer
+= 6;
5471 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5472 type
= SYMBOL_TYPE_PLABEL
;
5474 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5476 input_line_pointer
+= 8;
5477 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5478 type
= SYMBOL_TYPE_PRI_PROG
;
5480 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5482 input_line_pointer
+= 8;
5483 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5484 type
= SYMBOL_TYPE_SEC_PROG
;
5487 /* SOM requires much more information about symbol types
5488 than BFD understands. This is how we get this information
5489 to the SOM BFD backend. */
5490 #ifdef obj_set_symbol_type
5491 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5494 /* Now that the type of the exported symbol has been handled,
5495 handle any argument relocation information. */
5496 while (!is_end_of_statement ())
5498 if (*input_line_pointer
== ',')
5499 input_line_pointer
++;
5500 name
= input_line_pointer
;
5501 c
= get_symbol_end ();
5502 /* Argument sources. */
5503 if ((strncasecmp (name
, "argw", 4) == 0))
5505 p
= input_line_pointer
;
5507 input_line_pointer
++;
5508 temp
= atoi (name
+ 4);
5509 name
= input_line_pointer
;
5510 c
= get_symbol_end ();
5511 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5513 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5515 *input_line_pointer
= c
;
5517 /* The return value. */
5518 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5520 p
= input_line_pointer
;
5522 input_line_pointer
++;
5523 name
= input_line_pointer
;
5524 c
= get_symbol_end ();
5525 arg_reloc
= pa_build_arg_reloc (name
);
5527 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5529 *input_line_pointer
= c
;
5531 /* Privelege level. */
5532 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5534 p
= input_line_pointer
;
5536 input_line_pointer
++;
5537 temp
= atoi (input_line_pointer
);
5539 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5541 c
= get_symbol_end ();
5542 *input_line_pointer
= c
;
5546 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5547 p
= input_line_pointer
;
5550 if (!is_end_of_statement ())
5551 input_line_pointer
++;
5555 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5556 assembly file must either be defined in the assembly file, or
5557 explicitly IMPORTED from another. */
5566 name
= input_line_pointer
;
5567 c
= get_symbol_end ();
5569 symbol
= symbol_find (name
);
5570 /* Ugh. We might be importing a symbol defined earlier in the file,
5571 in which case all the code below will really screw things up
5572 (set the wrong segment, symbol flags & type, etc). */
5573 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5575 symbol
= symbol_find_or_make (name
);
5576 p
= input_line_pointer
;
5579 if (!is_end_of_statement ())
5581 input_line_pointer
++;
5582 pa_type_args (symbol
, 0);
5586 /* Sigh. To be compatable with the HP assembler and to help
5587 poorly written assembly code, we assign a type based on
5588 the the current segment. Note only BSF_FUNCTION really
5589 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5590 if (now_seg
== text_section
)
5591 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5593 /* If the section is undefined, then the symbol is undefined
5594 Since this is an import, leave the section undefined. */
5595 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5600 /* The symbol was already defined. Just eat everything up to
5601 the end of the current statement. */
5602 while (!is_end_of_statement ())
5603 input_line_pointer
++;
5606 demand_empty_rest_of_line ();
5609 /* Handle a .LABEL pseudo-op. */
5617 name
= input_line_pointer
;
5618 c
= get_symbol_end ();
5620 if (strlen (name
) > 0)
5623 p
= input_line_pointer
;
5628 as_warn (_("Missing label name on .LABEL"));
5631 if (!is_end_of_statement ())
5633 as_warn (_("extra .LABEL arguments ignored."));
5634 ignore_rest_of_line ();
5636 demand_empty_rest_of_line ();
5639 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5646 /* We must have a valid space and subspace. */
5647 pa_check_current_space_and_subspace ();
5650 as_bad (_("The .LEAVE pseudo-op is not supported"));
5651 demand_empty_rest_of_line ();
5654 /* Handle a .LEVEL pseudo-op. */
5662 level
= input_line_pointer
;
5663 if (strncmp (level
, "1.0", 3) == 0)
5665 input_line_pointer
+= 3;
5666 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5667 as_warn (_("could not set architecture and machine"));
5669 else if (strncmp (level
, "1.1", 3) == 0)
5671 input_line_pointer
+= 3;
5672 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5673 as_warn (_("could not set architecture and machine"));
5675 else if (strncmp (level
, "2.0w", 4) == 0)
5677 input_line_pointer
+= 4;
5678 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5679 as_warn (_("could not set architecture and machine"));
5681 else if (strncmp (level
, "2.0", 3) == 0)
5683 input_line_pointer
+= 3;
5684 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5685 as_warn (_("could not set architecture and machine"));
5689 as_bad (_("Unrecognized .LEVEL argument\n"));
5690 ignore_rest_of_line ();
5692 demand_empty_rest_of_line ();
5695 /* Handle a .ORIGIN pseudo-op. */
5702 /* We must have a valid space and subspace. */
5703 pa_check_current_space_and_subspace ();
5707 pa_undefine_label ();
5710 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5711 is for static functions. FIXME. Should share more code with .EXPORT. */
5720 name
= input_line_pointer
;
5721 c
= get_symbol_end ();
5723 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5725 as_bad (_("Cannot define static symbol: %s\n"), name
);
5726 p
= input_line_pointer
;
5728 input_line_pointer
++;
5732 S_CLEAR_EXTERNAL (symbol
);
5733 p
= input_line_pointer
;
5735 if (!is_end_of_statement ())
5737 input_line_pointer
++;
5738 pa_type_args (symbol
, 0);
5742 demand_empty_rest_of_line ();
5745 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5746 of a procedure from a syntatical point of view. */
5752 struct call_info
*call_info
;
5755 /* We must have a valid space and subspace. */
5756 pa_check_current_space_and_subspace ();
5759 if (within_procedure
)
5760 as_fatal (_("Nested procedures"));
5762 /* Reset global variables for new procedure. */
5763 callinfo_found
= FALSE
;
5764 within_procedure
= TRUE
;
5766 /* Create another call_info structure. */
5767 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5770 as_fatal (_("Cannot allocate unwind descriptor\n"));
5772 memset (call_info
, 0, sizeof (struct call_info
));
5774 call_info
->ci_next
= NULL
;
5776 if (call_info_root
== NULL
)
5778 call_info_root
= call_info
;
5779 last_call_info
= call_info
;
5783 last_call_info
->ci_next
= call_info
;
5784 last_call_info
= call_info
;
5787 /* set up defaults on call_info structure */
5789 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5790 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5791 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5793 /* If we got a .PROC pseudo-op, we know that the function is defined
5794 locally. Make sure it gets into the symbol table. */
5796 label_symbol_struct
*label_symbol
= pa_get_label ();
5800 if (label_symbol
->lss_label
)
5802 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5803 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5806 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5809 last_call_info
->start_symbol
= NULL
;
5812 demand_empty_rest_of_line ();
5815 /* Process the syntatical end of a procedure. Make sure all the
5816 appropriate pseudo-ops were found within the procedure. */
5824 /* We must have a valid space and subspace. */
5825 pa_check_current_space_and_subspace ();
5828 /* If we are within a procedure definition, make sure we've
5829 defined a label for the procedure; handle case where the
5830 label was defined after the .PROC directive.
5832 Note there's not need to diddle with the segment or fragment
5833 for the label symbol in this case. We have already switched
5834 into the new $CODE$ subspace at this point. */
5835 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5837 label_symbol_struct
*label_symbol
= pa_get_label ();
5841 if (label_symbol
->lss_label
)
5843 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5844 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5847 /* Also handle allocation of a fixup to hold the unwind
5848 information when the label appears after the proc/procend. */
5849 if (within_entry_exit
)
5851 char *where
= frag_more (0);
5853 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5854 NULL
, (offsetT
) 0, NULL
,
5855 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5856 (int *) &last_call_info
->ci_unwind
.descriptor
);
5861 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5864 as_bad (_("Missing function name for .PROC"));
5867 if (!within_procedure
)
5868 as_bad (_("misplaced .procend"));
5870 if (!callinfo_found
)
5871 as_bad (_("Missing .callinfo for this procedure"));
5873 if (within_entry_exit
)
5874 as_bad (_("Missing .EXIT for a .ENTRY"));
5877 /* ELF needs to mark the end of each function so that it can compute
5878 the size of the function (apparently its needed in the symbol table). */
5879 hppa_elf_mark_end_of_function ();
5882 within_procedure
= FALSE
;
5883 demand_empty_rest_of_line ();
5884 pa_undefine_label ();
5887 /* If VALUE is an exact power of two between zero and 2^31, then
5888 return log2 (VALUE). Else return -1. */
5896 while ((1 << shift
) != value
&& shift
< 32)
5907 /* Check to make sure we have a valid space and subspace. */
5910 pa_check_current_space_and_subspace ()
5912 if (current_space
== NULL
)
5913 as_fatal (_("Not in a space.\n"));
5915 if (current_subspace
== NULL
)
5916 as_fatal (_("Not in a subspace.\n"));
5919 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5920 then create a new space entry to hold the information specified
5921 by the parameters to the .SPACE directive. */
5923 static sd_chain_struct
*
5924 pa_parse_space_stmt (space_name
, create_flag
)
5928 char *name
, *ptemp
, c
;
5929 char loadable
, defined
, private, sort
;
5931 asection
*seg
= NULL
;
5932 sd_chain_struct
*space
;
5934 /* load default values */
5940 if (strcmp (space_name
, "$TEXT$") == 0)
5942 seg
= pa_def_spaces
[0].segment
;
5943 defined
= pa_def_spaces
[0].defined
;
5944 private = pa_def_spaces
[0].private;
5945 sort
= pa_def_spaces
[0].sort
;
5946 spnum
= pa_def_spaces
[0].spnum
;
5948 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5950 seg
= pa_def_spaces
[1].segment
;
5951 defined
= pa_def_spaces
[1].defined
;
5952 private = pa_def_spaces
[1].private;
5953 sort
= pa_def_spaces
[1].sort
;
5954 spnum
= pa_def_spaces
[1].spnum
;
5957 if (!is_end_of_statement ())
5959 print_errors
= FALSE
;
5960 ptemp
= input_line_pointer
+ 1;
5961 /* First see if the space was specified as a number rather than
5962 as a name. According to the PA assembly manual the rest of
5963 the line should be ignored. */
5964 temp
= pa_parse_number (&ptemp
, 0);
5968 input_line_pointer
= ptemp
;
5972 while (!is_end_of_statement ())
5974 input_line_pointer
++;
5975 name
= input_line_pointer
;
5976 c
= get_symbol_end ();
5977 if ((strncasecmp (name
, "spnum", 5) == 0))
5979 *input_line_pointer
= c
;
5980 input_line_pointer
++;
5981 spnum
= get_absolute_expression ();
5983 else if ((strncasecmp (name
, "sort", 4) == 0))
5985 *input_line_pointer
= c
;
5986 input_line_pointer
++;
5987 sort
= get_absolute_expression ();
5989 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5991 *input_line_pointer
= c
;
5994 else if ((strncasecmp (name
, "notdefined", 10) == 0))
5996 *input_line_pointer
= c
;
5999 else if ((strncasecmp (name
, "private", 7) == 0))
6001 *input_line_pointer
= c
;
6006 as_bad (_("Invalid .SPACE argument"));
6007 *input_line_pointer
= c
;
6008 if (!is_end_of_statement ())
6009 input_line_pointer
++;
6013 print_errors
= TRUE
;
6016 if (create_flag
&& seg
== NULL
)
6017 seg
= subseg_new (space_name
, 0);
6019 /* If create_flag is nonzero, then create the new space with
6020 the attributes computed above. Else set the values in
6021 an already existing space -- this can only happen for
6022 the first occurence of a built-in space. */
6024 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
6025 private, sort
, seg
, 1);
6028 space
= is_defined_space (space_name
);
6029 SPACE_SPNUM (space
) = spnum
;
6030 SPACE_DEFINED (space
) = defined
& 1;
6031 SPACE_USER_DEFINED (space
) = 1;
6034 #ifdef obj_set_section_attributes
6035 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6041 /* Handle a .SPACE pseudo-op; this switches the current space to the
6042 given space, creating the new space if necessary. */
6048 char *name
, c
, *space_name
, *save_s
;
6050 sd_chain_struct
*sd_chain
;
6052 if (within_procedure
)
6054 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6055 ignore_rest_of_line ();
6059 /* Check for some of the predefined spaces. FIXME: most of the code
6060 below is repeated several times, can we extract the common parts
6061 and place them into a subroutine or something similar? */
6062 /* FIXME Is this (and the next IF stmt) really right?
6063 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6064 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
6066 input_line_pointer
+= 6;
6067 sd_chain
= is_defined_space ("$TEXT$");
6068 if (sd_chain
== NULL
)
6069 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
6070 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6071 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
6073 current_space
= sd_chain
;
6074 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
6076 = pa_subsegment_to_subspace (text_section
,
6077 sd_chain
->sd_last_subseg
);
6078 demand_empty_rest_of_line ();
6081 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
6083 input_line_pointer
+= 9;
6084 sd_chain
= is_defined_space ("$PRIVATE$");
6085 if (sd_chain
== NULL
)
6086 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
6087 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6088 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
6090 current_space
= sd_chain
;
6091 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
6093 = pa_subsegment_to_subspace (data_section
,
6094 sd_chain
->sd_last_subseg
);
6095 demand_empty_rest_of_line ();
6098 if (!strncasecmp (input_line_pointer
,
6099 GDB_DEBUG_SPACE_NAME
,
6100 strlen (GDB_DEBUG_SPACE_NAME
)))
6102 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
6103 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
6104 if (sd_chain
== NULL
)
6105 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
6106 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6107 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
6109 current_space
= sd_chain
;
6112 asection
*gdb_section
6113 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
6115 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
6117 = pa_subsegment_to_subspace (gdb_section
,
6118 sd_chain
->sd_last_subseg
);
6120 demand_empty_rest_of_line ();
6124 /* It could be a space specified by number. */
6126 save_s
= input_line_pointer
;
6127 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
6129 if ((sd_chain
= pa_find_space_by_number (temp
)))
6131 current_space
= sd_chain
;
6133 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6135 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6136 sd_chain
->sd_last_subseg
);
6137 demand_empty_rest_of_line ();
6142 /* Not a number, attempt to create a new space. */
6144 input_line_pointer
= save_s
;
6145 name
= input_line_pointer
;
6146 c
= get_symbol_end ();
6147 space_name
= xmalloc (strlen (name
) + 1);
6148 strcpy (space_name
, name
);
6149 *input_line_pointer
= c
;
6151 sd_chain
= pa_parse_space_stmt (space_name
, 1);
6152 current_space
= sd_chain
;
6154 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6155 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6156 sd_chain
->sd_last_subseg
);
6157 demand_empty_rest_of_line ();
6161 /* Switch to a new space. (I think). FIXME. */
6170 sd_chain_struct
*space
;
6172 name
= input_line_pointer
;
6173 c
= get_symbol_end ();
6174 space
= is_defined_space (name
);
6178 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
6181 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
6183 *input_line_pointer
= c
;
6184 demand_empty_rest_of_line ();
6187 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6188 given subspace, creating the new subspace if necessary.
6190 FIXME. Should mirror pa_space more closely, in particular how
6191 they're broken up into subroutines. */
6194 pa_subspace (create_new
)
6197 char *name
, *ss_name
, c
;
6198 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
6199 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
6200 sd_chain_struct
*space
;
6201 ssd_chain_struct
*ssd
;
6204 if (current_space
== NULL
)
6205 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6207 if (within_procedure
)
6209 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6210 ignore_rest_of_line ();
6214 name
= input_line_pointer
;
6215 c
= get_symbol_end ();
6216 ss_name
= xmalloc (strlen (name
) + 1);
6217 strcpy (ss_name
, name
);
6218 *input_line_pointer
= c
;
6220 /* Load default values. */
6232 space
= current_space
;
6236 ssd
= is_defined_subspace (ss_name
);
6237 /* Allow user to override the builtin attributes of subspaces. But
6238 only allow the attributes to be changed once! */
6239 if (ssd
&& SUBSPACE_DEFINED (ssd
))
6241 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
6242 current_subspace
= ssd
;
6243 if (!is_end_of_statement ())
6244 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6245 demand_empty_rest_of_line ();
6250 /* A new subspace. Load default values if it matches one of
6251 the builtin subspaces. */
6253 while (pa_def_subspaces
[i
].name
)
6255 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
6257 loadable
= pa_def_subspaces
[i
].loadable
;
6258 common
= pa_def_subspaces
[i
].common
;
6259 dup_common
= pa_def_subspaces
[i
].dup_common
;
6260 code_only
= pa_def_subspaces
[i
].code_only
;
6261 zero
= pa_def_subspaces
[i
].zero
;
6262 space_index
= pa_def_subspaces
[i
].space_index
;
6263 alignment
= pa_def_subspaces
[i
].alignment
;
6264 quadrant
= pa_def_subspaces
[i
].quadrant
;
6265 access
= pa_def_subspaces
[i
].access
;
6266 sort
= pa_def_subspaces
[i
].sort
;
6273 /* We should be working with a new subspace now. Fill in
6274 any information as specified by the user. */
6275 if (!is_end_of_statement ())
6277 input_line_pointer
++;
6278 while (!is_end_of_statement ())
6280 name
= input_line_pointer
;
6281 c
= get_symbol_end ();
6282 if ((strncasecmp (name
, "quad", 4) == 0))
6284 *input_line_pointer
= c
;
6285 input_line_pointer
++;
6286 quadrant
= get_absolute_expression ();
6288 else if ((strncasecmp (name
, "align", 5) == 0))
6290 *input_line_pointer
= c
;
6291 input_line_pointer
++;
6292 alignment
= get_absolute_expression ();
6293 if (log2 (alignment
) == -1)
6295 as_bad (_("Alignment must be a power of 2"));
6299 else if ((strncasecmp (name
, "access", 6) == 0))
6301 *input_line_pointer
= c
;
6302 input_line_pointer
++;
6303 access
= get_absolute_expression ();
6305 else if ((strncasecmp (name
, "sort", 4) == 0))
6307 *input_line_pointer
= c
;
6308 input_line_pointer
++;
6309 sort
= get_absolute_expression ();
6311 else if ((strncasecmp (name
, "code_only", 9) == 0))
6313 *input_line_pointer
= c
;
6316 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6318 *input_line_pointer
= c
;
6321 else if ((strncasecmp (name
, "common", 6) == 0))
6323 *input_line_pointer
= c
;
6326 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
6328 *input_line_pointer
= c
;
6331 else if ((strncasecmp (name
, "zero", 4) == 0))
6333 *input_line_pointer
= c
;
6336 else if ((strncasecmp (name
, "first", 5) == 0))
6337 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
6339 as_bad (_("Invalid .SUBSPACE argument"));
6340 if (!is_end_of_statement ())
6341 input_line_pointer
++;
6345 /* Compute a reasonable set of BFD flags based on the information
6346 in the .subspace directive. */
6347 applicable
= bfd_applicable_section_flags (stdoutput
);
6350 flags
|= (SEC_ALLOC
| SEC_LOAD
);
6353 if (common
|| dup_common
)
6354 flags
|= SEC_IS_COMMON
;
6356 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
6358 /* This is a zero-filled subspace (eg BSS). */
6360 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
6362 applicable
&= flags
;
6364 /* If this is an existing subspace, then we want to use the
6365 segment already associated with the subspace.
6367 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6368 lots of sections. It might be a problem in the PA ELF
6369 code, I do not know yet. For now avoid creating anything
6370 but the "standard" sections for ELF. */
6372 section
= subseg_force_new (ss_name
, 0);
6374 section
= ssd
->ssd_seg
;
6376 section
= subseg_new (ss_name
, 0);
6379 seg_info (section
)->bss
= 1;
6381 /* Now set the flags. */
6382 bfd_set_section_flags (stdoutput
, section
, applicable
);
6384 /* Record any alignment request for this section. */
6385 record_alignment (section
, log2 (alignment
));
6387 /* Set the starting offset for this section. */
6388 bfd_set_section_vma (stdoutput
, section
,
6389 pa_subspace_start (space
, quadrant
));
6391 /* Now that all the flags are set, update an existing subspace,
6392 or create a new one. */
6395 current_subspace
= update_subspace (space
, ss_name
, loadable
,
6396 code_only
, common
, dup_common
,
6397 sort
, zero
, access
, space_index
,
6398 alignment
, quadrant
,
6401 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
6403 dup_common
, zero
, sort
,
6404 access
, space_index
,
6405 alignment
, quadrant
, section
);
6407 demand_empty_rest_of_line ();
6408 current_subspace
->ssd_seg
= section
;
6409 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6411 SUBSPACE_DEFINED (current_subspace
) = 1;
6415 /* Create default space and subspace dictionaries. */
6422 space_dict_root
= NULL
;
6423 space_dict_last
= NULL
;
6426 while (pa_def_spaces
[i
].name
)
6430 /* Pick the right name to use for the new section. */
6431 name
= pa_def_spaces
[i
].name
;
6433 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6434 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6435 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6436 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6437 pa_def_spaces
[i
].segment
, 0);
6442 while (pa_def_subspaces
[i
].name
)
6445 int applicable
, subsegment
;
6446 asection
*segment
= NULL
;
6447 sd_chain_struct
*space
;
6449 /* Pick the right name for the new section and pick the right
6450 subsegment number. */
6451 name
= pa_def_subspaces
[i
].name
;
6454 /* Create the new section. */
6455 segment
= subseg_new (name
, subsegment
);
6458 /* For SOM we want to replace the standard .text, .data, and .bss
6459 sections with our own. We also want to set BFD flags for
6460 all the built-in subspaces. */
6461 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6463 text_section
= segment
;
6464 applicable
= bfd_applicable_section_flags (stdoutput
);
6465 bfd_set_section_flags (stdoutput
, segment
,
6466 applicable
& (SEC_ALLOC
| SEC_LOAD
6467 | SEC_RELOC
| SEC_CODE
6469 | SEC_HAS_CONTENTS
));
6471 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6473 data_section
= segment
;
6474 applicable
= bfd_applicable_section_flags (stdoutput
);
6475 bfd_set_section_flags (stdoutput
, segment
,
6476 applicable
& (SEC_ALLOC
| SEC_LOAD
6478 | SEC_HAS_CONTENTS
));
6482 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6484 bss_section
= segment
;
6485 applicable
= bfd_applicable_section_flags (stdoutput
);
6486 bfd_set_section_flags (stdoutput
, segment
,
6487 applicable
& SEC_ALLOC
);
6489 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6491 applicable
= bfd_applicable_section_flags (stdoutput
);
6492 bfd_set_section_flags (stdoutput
, segment
,
6493 applicable
& (SEC_ALLOC
| SEC_LOAD
6496 | SEC_HAS_CONTENTS
));
6498 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6500 applicable
= bfd_applicable_section_flags (stdoutput
);
6501 bfd_set_section_flags (stdoutput
, segment
,
6502 applicable
& (SEC_ALLOC
| SEC_LOAD
6505 | SEC_HAS_CONTENTS
));
6507 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6509 applicable
= bfd_applicable_section_flags (stdoutput
);
6510 bfd_set_section_flags (stdoutput
, segment
,
6511 applicable
& (SEC_ALLOC
| SEC_LOAD
6514 | SEC_HAS_CONTENTS
));
6517 /* Find the space associated with this subspace. */
6518 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6519 def_space_index
].segment
);
6522 as_fatal (_("Internal error: Unable to find containing space for %s."),
6523 pa_def_subspaces
[i
].name
);
6526 create_new_subspace (space
, name
,
6527 pa_def_subspaces
[i
].loadable
,
6528 pa_def_subspaces
[i
].code_only
,
6529 pa_def_subspaces
[i
].common
,
6530 pa_def_subspaces
[i
].dup_common
,
6531 pa_def_subspaces
[i
].zero
,
6532 pa_def_subspaces
[i
].sort
,
6533 pa_def_subspaces
[i
].access
,
6534 pa_def_subspaces
[i
].space_index
,
6535 pa_def_subspaces
[i
].alignment
,
6536 pa_def_subspaces
[i
].quadrant
,
6544 /* Create a new space NAME, with the appropriate flags as defined
6545 by the given parameters. */
6547 static sd_chain_struct
*
6548 create_new_space (name
, spnum
, loadable
, defined
, private,
6549 sort
, seg
, user_defined
)
6559 sd_chain_struct
*chain_entry
;
6561 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6563 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6566 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6567 strcpy (SPACE_NAME (chain_entry
), name
);
6568 SPACE_DEFINED (chain_entry
) = defined
;
6569 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6570 SPACE_SPNUM (chain_entry
) = spnum
;
6572 chain_entry
->sd_seg
= seg
;
6573 chain_entry
->sd_last_subseg
= -1;
6574 chain_entry
->sd_subspaces
= NULL
;
6575 chain_entry
->sd_next
= NULL
;
6577 /* Find spot for the new space based on its sort key. */
6578 if (!space_dict_last
)
6579 space_dict_last
= chain_entry
;
6581 if (space_dict_root
== NULL
)
6582 space_dict_root
= chain_entry
;
6585 sd_chain_struct
*chain_pointer
;
6586 sd_chain_struct
*prev_chain_pointer
;
6588 chain_pointer
= space_dict_root
;
6589 prev_chain_pointer
= NULL
;
6591 while (chain_pointer
)
6593 prev_chain_pointer
= chain_pointer
;
6594 chain_pointer
= chain_pointer
->sd_next
;
6597 /* At this point we've found the correct place to add the new
6598 entry. So add it and update the linked lists as appropriate. */
6599 if (prev_chain_pointer
)
6601 chain_entry
->sd_next
= chain_pointer
;
6602 prev_chain_pointer
->sd_next
= chain_entry
;
6606 space_dict_root
= chain_entry
;
6607 chain_entry
->sd_next
= chain_pointer
;
6610 if (chain_entry
->sd_next
== NULL
)
6611 space_dict_last
= chain_entry
;
6614 /* This is here to catch predefined spaces which do not get
6615 modified by the user's input. Another call is found at
6616 the bottom of pa_parse_space_stmt to handle cases where
6617 the user modifies a predefined space. */
6618 #ifdef obj_set_section_attributes
6619 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6625 /* Create a new subspace NAME, with the appropriate flags as defined
6626 by the given parameters.
6628 Add the new subspace to the subspace dictionary chain in numerical
6629 order as defined by the SORT entries. */
6631 static ssd_chain_struct
*
6632 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6633 dup_common
, is_zero
, sort
, access
, space_index
,
6634 alignment
, quadrant
, seg
)
6635 sd_chain_struct
*space
;
6637 int loadable
, code_only
, common
, dup_common
, is_zero
;
6645 ssd_chain_struct
*chain_entry
;
6647 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6649 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6651 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6652 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6654 /* Initialize subspace_defined. When we hit a .subspace directive
6655 we'll set it to 1 which "locks-in" the subspace attributes. */
6656 SUBSPACE_DEFINED (chain_entry
) = 0;
6658 chain_entry
->ssd_subseg
= 0;
6659 chain_entry
->ssd_seg
= seg
;
6660 chain_entry
->ssd_next
= NULL
;
6662 /* Find spot for the new subspace based on its sort key. */
6663 if (space
->sd_subspaces
== NULL
)
6664 space
->sd_subspaces
= chain_entry
;
6667 ssd_chain_struct
*chain_pointer
;
6668 ssd_chain_struct
*prev_chain_pointer
;
6670 chain_pointer
= space
->sd_subspaces
;
6671 prev_chain_pointer
= NULL
;
6673 while (chain_pointer
)
6675 prev_chain_pointer
= chain_pointer
;
6676 chain_pointer
= chain_pointer
->ssd_next
;
6679 /* Now we have somewhere to put the new entry. Insert it and update
6681 if (prev_chain_pointer
)
6683 chain_entry
->ssd_next
= chain_pointer
;
6684 prev_chain_pointer
->ssd_next
= chain_entry
;
6688 space
->sd_subspaces
= chain_entry
;
6689 chain_entry
->ssd_next
= chain_pointer
;
6693 #ifdef obj_set_subsection_attributes
6694 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6701 /* Update the information for the given subspace based upon the
6702 various arguments. Return the modified subspace chain entry. */
6704 static ssd_chain_struct
*
6705 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6706 zero
, access
, space_index
, alignment
, quadrant
, section
)
6707 sd_chain_struct
*space
;
6721 ssd_chain_struct
*chain_entry
;
6723 chain_entry
= is_defined_subspace (name
);
6725 #ifdef obj_set_subsection_attributes
6726 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6733 /* Return the space chain entry for the space with the name NAME or
6734 NULL if no such space exists. */
6736 static sd_chain_struct
*
6737 is_defined_space (name
)
6740 sd_chain_struct
*chain_pointer
;
6742 for (chain_pointer
= space_dict_root
;
6744 chain_pointer
= chain_pointer
->sd_next
)
6746 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6747 return chain_pointer
;
6750 /* No mapping from segment to space was found. Return NULL. */
6754 /* Find and return the space associated with the given seg. If no mapping
6755 from the given seg to a space is found, then return NULL.
6757 Unlike subspaces, the number of spaces is not expected to grow much,
6758 so a linear exhaustive search is OK here. */
6760 static sd_chain_struct
*
6761 pa_segment_to_space (seg
)
6764 sd_chain_struct
*space_chain
;
6766 /* Walk through each space looking for the correct mapping. */
6767 for (space_chain
= space_dict_root
;
6769 space_chain
= space_chain
->sd_next
)
6771 if (space_chain
->sd_seg
== seg
)
6775 /* Mapping was not found. Return NULL. */
6779 /* Return the space chain entry for the subspace with the name NAME or
6780 NULL if no such subspace exists.
6782 Uses a linear search through all the spaces and subspaces, this may
6783 not be appropriate if we ever being placing each function in its
6786 static ssd_chain_struct
*
6787 is_defined_subspace (name
)
6790 sd_chain_struct
*space_chain
;
6791 ssd_chain_struct
*subspace_chain
;
6793 /* Walk through each space. */
6794 for (space_chain
= space_dict_root
;
6796 space_chain
= space_chain
->sd_next
)
6798 /* Walk through each subspace looking for a name which matches. */
6799 for (subspace_chain
= space_chain
->sd_subspaces
;
6801 subspace_chain
= subspace_chain
->ssd_next
)
6802 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6803 return subspace_chain
;
6806 /* Subspace wasn't found. Return NULL. */
6810 /* Find and return the subspace associated with the given seg. If no
6811 mapping from the given seg to a subspace is found, then return NULL.
6813 If we ever put each procedure/function within its own subspace
6814 (to make life easier on the compiler and linker), then this will have
6815 to become more efficient. */
6817 static ssd_chain_struct
*
6818 pa_subsegment_to_subspace (seg
, subseg
)
6822 sd_chain_struct
*space_chain
;
6823 ssd_chain_struct
*subspace_chain
;
6825 /* Walk through each space. */
6826 for (space_chain
= space_dict_root
;
6828 space_chain
= space_chain
->sd_next
)
6830 if (space_chain
->sd_seg
== seg
)
6832 /* Walk through each subspace within each space looking for
6833 the correct mapping. */
6834 for (subspace_chain
= space_chain
->sd_subspaces
;
6836 subspace_chain
= subspace_chain
->ssd_next
)
6837 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6838 return subspace_chain
;
6842 /* No mapping from subsegment to subspace found. Return NULL. */
6846 /* Given a number, try and find a space with the name number.
6848 Return a pointer to a space dictionary chain entry for the space
6849 that was found or NULL on failure. */
6851 static sd_chain_struct
*
6852 pa_find_space_by_number (number
)
6855 sd_chain_struct
*space_chain
;
6857 for (space_chain
= space_dict_root
;
6859 space_chain
= space_chain
->sd_next
)
6861 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6865 /* No appropriate space found. Return NULL. */
6869 /* Return the starting address for the given subspace. If the starting
6870 address is unknown then return zero. */
6873 pa_subspace_start (space
, quadrant
)
6874 sd_chain_struct
*space
;
6877 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6878 is not correct for the PA OSF1 port. */
6879 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6881 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6888 /* FIXME. Needs documentation. */
6890 pa_next_subseg (space
)
6891 sd_chain_struct
*space
;
6894 space
->sd_last_subseg
++;
6895 return space
->sd_last_subseg
;
6899 /* Helper function for pa_stringer. Used to find the end of
6906 unsigned int c
= *s
& CHAR_MASK
;
6909 /* We must have a valid space and subspace. */
6910 pa_check_current_space_and_subspace ();
6924 /* Handle a .STRING type pseudo-op. */
6927 pa_stringer (append_zero
)
6930 char *s
, num_buf
[4];
6934 /* Preprocess the string to handle PA-specific escape sequences.
6935 For example, \xDD where DD is a hexidecimal number should be
6936 changed to \OOO where OOO is an octal number. */
6938 /* Skip the opening quote. */
6939 s
= input_line_pointer
+ 1;
6941 while (is_a_char (c
= pa_stringer_aux (s
++)))
6948 /* Handle \x<num>. */
6951 unsigned int number
;
6956 /* Get pas the 'x'. */
6958 for (num_digit
= 0, number
= 0, dg
= *s
;
6960 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6961 || (dg
>= 'A' && dg
<= 'F'));
6965 number
= number
* 16 + dg
- '0';
6966 else if (dg
>= 'a' && dg
<= 'f')
6967 number
= number
* 16 + dg
- 'a' + 10;
6969 number
= number
* 16 + dg
- 'A' + 10;
6979 sprintf (num_buf
, "%02o", number
);
6982 sprintf (num_buf
, "%03o", number
);
6985 for (i
= 0; i
<= num_digit
; i
++)
6986 s_start
[i
] = num_buf
[i
];
6990 /* This might be a "\"", skip over the escaped char. */
6997 stringer (append_zero
);
6998 pa_undefine_label ();
7001 /* Handle a .VERSION pseudo-op. */
7008 pa_undefine_label ();
7013 /* Handle a .COMPILER pseudo-op. */
7016 pa_compiler (unused
)
7019 obj_som_compiler (0);
7020 pa_undefine_label ();
7025 /* Handle a .COPYRIGHT pseudo-op. */
7028 pa_copyright (unused
)
7032 pa_undefine_label ();
7035 /* Just like a normal cons, but when finished we have to undefine
7036 the latest space label. */
7043 pa_undefine_label ();
7046 /* Switch to the data space. As usual delete our label. */
7053 current_space
= is_defined_space ("$PRIVATE$");
7055 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7058 pa_undefine_label ();
7061 /* Like float_cons, but we need to undefine our label. */
7064 pa_float_cons (float_type
)
7067 float_cons (float_type
);
7068 pa_undefine_label ();
7071 /* Like s_fill, but delete our label when finished. */
7078 /* We must have a valid space and subspace. */
7079 pa_check_current_space_and_subspace ();
7083 pa_undefine_label ();
7086 /* Like lcomm, but delete our label when finished. */
7089 pa_lcomm (needs_align
)
7093 /* We must have a valid space and subspace. */
7094 pa_check_current_space_and_subspace ();
7097 s_lcomm (needs_align
);
7098 pa_undefine_label ();
7101 /* Like lsym, but delete our label when finished. */
7108 /* We must have a valid space and subspace. */
7109 pa_check_current_space_and_subspace ();
7113 pa_undefine_label ();
7116 /* Switch to the text space. Like s_text, but delete our
7117 label when finished. */
7123 current_space
= is_defined_space ("$TEXT$");
7125 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7129 pa_undefine_label ();
7132 /* On the PA relocations which involve function symbols must not be
7133 adjusted. This so that the linker can know when/how to create argument
7134 relocation stubs for indirect calls and calls to static functions.
7136 "T" field selectors create DLT relative fixups for accessing
7137 globals and statics in PIC code; each DLT relative fixup creates
7138 an entry in the DLT table. The entries contain the address of
7139 the final target (eg accessing "foo" would create a DLT entry
7140 with the address of "foo").
7142 Unfortunately, the HP linker doesn't take into account any addend
7143 when generating the DLT; so accessing $LIT$+8 puts the address of
7144 $LIT$ into the DLT rather than the address of $LIT$+8.
7146 The end result is we can't perform relocation symbol reductions for
7147 any fixup which creates entries in the DLT (eg they use "T" field
7150 Reject reductions involving symbols with external scope; such
7151 reductions make life a living hell for object file editors.
7153 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7154 the code space. The SOM BFD backend doesn't know how to pull the
7155 right bits out of an instruction. */
7158 hppa_fix_adjustable (fixp
)
7161 struct hppa_fix_struct
*hppa_fix
;
7163 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7166 /* Reject reductions of symbols in 32bit relocs. */
7167 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
7170 /* Reject reductions of symbols in sym1-sym2 expressions when
7171 the fixup will occur in a CODE subspace.
7173 XXX FIXME: Long term we probably want to reject all of these;
7174 for example reducing in the debug section would lose if we ever
7175 supported using the optimizing hp linker. */
7178 && (hppa_fix
->segment
->flags
& SEC_CODE
))
7180 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
7181 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
7185 /* We can't adjust any relocs that use LR% and RR% field selectors.
7186 That confuses the HP linker. */
7187 if (hppa_fix
->fx_r_field
== e_lrsel
7188 || hppa_fix
->fx_r_field
== e_rrsel
7189 || hppa_fix
->fx_r_field
== e_nlrsel
)
7193 /* Reject reductions of symbols in DLT relative relocs,
7194 relocations with plabels. */
7195 if (hppa_fix
->fx_r_field
== e_tsel
7196 || hppa_fix
->fx_r_field
== e_ltsel
7197 || hppa_fix
->fx_r_field
== e_rtsel
7198 || hppa_fix
->fx_r_field
== e_psel
7199 || hppa_fix
->fx_r_field
== e_rpsel
7200 || hppa_fix
->fx_r_field
== e_lpsel
)
7203 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
7206 /* Reject absolute calls (jumps). */
7207 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
7210 /* Reject reductions of function symbols. */
7211 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
7217 /* Return nonzero if the fixup in FIXP will require a relocation,
7218 even it if appears that the fixup could be completely handled
7222 hppa_force_relocation (fixp
)
7225 struct hppa_fix_struct
*hppa_fixp
;
7228 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7230 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
7231 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
7232 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
7233 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
7234 || fixp
->fx_r_type
== R_HPPA_END_TRY
7235 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
7236 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
7240 #define arg_reloc_stub_needed(CALLER, CALLEE) \
7241 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7244 /* It is necessary to force PC-relative calls/jumps to have a relocation
7245 entry if they're going to need either a argument relocation or long
7246 call stub. FIXME. Can't we need the same for absolute calls? */
7247 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
7248 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
7249 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
7250 hppa_fixp
->fx_arg_reloc
)))
7253 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
7254 - md_pcrel_from (fixp
));
7255 /* Now check and see if we're going to need a long-branch stub. */
7256 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
7257 && (distance
> 262143 || distance
< -262144))
7260 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
7262 #undef arg_reloc_stub_needed
7264 /* No need (yet) to force another relocations to be emitted. */
7268 /* Now for some ELF specific code. FIXME. */
7270 /* Mark the end of a function so that it's possible to compute
7271 the size of the function in hppa_elf_final_processing. */
7274 hppa_elf_mark_end_of_function ()
7276 /* ELF does not have EXIT relocations. All we do is create a
7277 temporary symbol marking the end of the function. */
7278 char *name
= (char *)
7279 xmalloc (strlen ("L$\001end_") +
7280 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
7286 strcpy (name
, "L$\001end_");
7287 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
7289 /* If we have a .exit followed by a .procend, then the
7290 symbol will have already been defined. */
7291 symbolP
= symbol_find (name
);
7294 /* The symbol has already been defined! This can
7295 happen if we have a .exit followed by a .procend.
7297 This is *not* an error. All we want to do is free
7298 the memory we just allocated for the name and continue. */
7303 /* symbol value should be the offset of the
7304 last instruction of the function */
7305 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
7309 S_CLEAR_EXTERNAL (symbolP
);
7310 symbol_table_insert (symbolP
);
7314 last_call_info
->end_symbol
= symbolP
;
7316 as_bad (_("Symbol '%s' could not be created."), name
);
7320 as_bad (_("No memory for symbol name."));
7324 /* For ELF, this function serves one purpose: to setup the st_size
7325 field of STT_FUNC symbols. To do this, we need to scan the
7326 call_info structure list, determining st_size in by taking the
7327 difference in the address of the beginning/end marker symbols. */
7330 elf_hppa_final_processing ()
7332 struct call_info
*call_info_pointer
;
7334 for (call_info_pointer
= call_info_root
;
7336 call_info_pointer
= call_info_pointer
->ci_next
)
7338 elf_symbol_type
*esym
7339 = ((elf_symbol_type
*)
7340 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
7341 esym
->internal_elf_sym
.st_size
=
7342 S_GET_VALUE (call_info_pointer
->end_symbol
)
7343 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;