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 add completer. */
1828 if (!strncasecmp (s
, ",l", 2))
1833 else if (!strncasecmp (s
, ",tsv", 4))
1839 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1841 /* Handle 64 bit carry for ADD. */
1844 if (!strncasecmp (s
, ",dc,tsv", 7) ||
1845 !strncasecmp (s
, ",tsv,dc", 7))
1850 else if (!strncasecmp (s
, ",dc", 3))
1858 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1860 /* Handle 32 bit carry for ADD. */
1863 if (!strncasecmp (s
, ",c,tsv", 6) ||
1864 !strncasecmp (s
, ",tsv,c", 6))
1869 else if (!strncasecmp (s
, ",c", 2))
1877 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1879 /* Handle trap on signed overflow. */
1882 if (!strncasecmp (s
, ",tsv", 4))
1888 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1890 /* Handle trap on condition and overflow. */
1893 if (!strncasecmp (s
, ",tc,tsv", 7) ||
1894 !strncasecmp (s
, ",tsv,tc", 7))
1899 else if (!strncasecmp (s
, ",tc", 3))
1907 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1909 /* Handle 64 bit borrow for SUB. */
1912 if (!strncasecmp (s
, ",db,tsv", 7) ||
1913 !strncasecmp (s
, ",tsv,db", 7))
1918 else if (!strncasecmp (s
, ",db", 3))
1926 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1928 /* Handle 32 bit borrow for SUB. */
1931 if (!strncasecmp (s
, ",b,tsv", 6) ||
1932 !strncasecmp (s
, ",tsv,b", 6))
1937 else if (!strncasecmp (s
, ",b", 2))
1945 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1947 /* Handle trap condition completer for UADDCM. */
1950 if (!strncasecmp (s
, ",tc", 3))
1956 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1958 /* Handle signed/unsigned at 21. */
1962 if (strncasecmp (s
, ",s", 2) == 0)
1967 else if (strncasecmp (s
, ",u", 2) == 0)
1973 INSERT_FIELD_AND_CONTINUE (opcode
, sign
, 10);
1976 /* Handle left/right combination at 17:18. */
1986 as_bad(_("Invalid left/right combination completer"));
1989 INSERT_FIELD_AND_CONTINUE (opcode
, lr
, 13);
1992 as_bad(_("Invalid left/right combination completer"));
1995 /* Handle saturation at 24:25. */
1999 if (strncasecmp (s
, ",ss", 3) == 0)
2004 else if (strncasecmp (s
, ",us", 3) == 0)
2010 INSERT_FIELD_AND_CONTINUE (opcode
, sat
, 6);
2013 /* Handle permutation completer. */
2017 int permloc
[4] = {13,10,8,6};
2037 as_bad(_("Invalid permutation completer"));
2039 opcode
|= perm
<< permloc
[i
];
2044 as_bad(_("Invalid permutation completer"));
2052 /* Handle all conditions. */
2058 /* Handle FP compare conditions. */
2060 cond
= pa_parse_fp_cmp_cond (&s
);
2061 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
2063 /* Handle an add condition. */
2072 /* 64 bit conditions. */
2085 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2089 if (strcmp (name
, "=") == 0)
2091 else if (strcmp (name
, "<") == 0)
2093 else if (strcmp (name
, "<=") == 0)
2095 else if (strcasecmp (name
, "nuv") == 0)
2097 else if (strcasecmp (name
, "znv") == 0)
2099 else if (strcasecmp (name
, "sv") == 0)
2101 else if (strcasecmp (name
, "od") == 0)
2103 else if (strcasecmp (name
, "tr") == 0)
2108 else if (strcmp (name
, "<>") == 0)
2113 else if (strcmp (name
, ">=") == 0)
2118 else if (strcmp (name
, ">") == 0)
2123 else if (strcasecmp (name
, "uv") == 0)
2128 else if (strcasecmp (name
, "vnz") == 0)
2133 else if (strcasecmp (name
, "nsv") == 0)
2138 else if (strcasecmp (name
, "ev") == 0)
2143 /* ",*" is a valid condition. */
2144 else if (*args
== 'a')
2145 as_bad (_("Invalid Add Condition: %s"), name
);
2148 opcode
|= cmpltr
<< 13;
2149 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2151 /* Handle non-negated add and branch condition. */
2153 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2156 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2159 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2161 /* Handle negated add and branch condition. */
2165 /* Handle wide-mode non-negated add and branch condition. */
2169 /* Handle wide-mode negated add and branch condition. */
2173 /* Handle a negated or non-negated add and branch
2177 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2181 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
2184 as_bad (_("Invalid Compare/Subtract Condition"));
2189 /* Negated condition requires an opcode change. */
2193 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2195 /* Handle branch on bit conditions. */
2213 if (strncmp (s
, "<", 1) == 0)
2218 else if (strncmp (s
, ">=", 2) == 0)
2224 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
2226 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
2228 /* Handle a compare/subtract condition. */
2237 /* 64 bit conditions. */
2250 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2254 if (strcmp (name
, "=") == 0)
2256 else if (strcmp (name
, "<") == 0)
2258 else if (strcmp (name
, "<=") == 0)
2260 else if (strcasecmp (name
, "<<") == 0)
2262 else if (strcasecmp (name
, "<<=") == 0)
2264 else if (strcasecmp (name
, "sv") == 0)
2266 else if (strcasecmp (name
, "od") == 0)
2268 else if (strcasecmp (name
, "tr") == 0)
2273 else if (strcmp (name
, "<>") == 0)
2278 else if (strcmp (name
, ">=") == 0)
2283 else if (strcmp (name
, ">") == 0)
2288 else if (strcasecmp (name
, ">>=") == 0)
2293 else if (strcasecmp (name
, ">>") == 0)
2298 else if (strcasecmp (name
, "nsv") == 0)
2303 else if (strcasecmp (name
, "ev") == 0)
2308 /* ",*" is a valid condition. */
2309 else if (*args
!= 'S')
2310 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2314 opcode
|= cmpltr
<< 13;
2315 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2317 /* Handle a non-negated compare condition. */
2319 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2322 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2325 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2327 /* Handle a negated compare condition. */
2331 /* Handle a 64 bit non-negated compare condition. */
2335 /* Handle a 64 bit negated compare condition. */
2339 /* Handle a 64 bit cmpib condition. */
2343 /* Handle a negated or non-negated compare/subtract
2347 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2351 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2354 as_bad (_("Invalid Compare/Subtract Condition."));
2359 /* Negated condition requires an opcode change. */
2364 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2366 /* Handle a logical instruction condition. */
2375 /* 64 bit conditions. */
2388 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2394 if (strcmp (name
, "=") == 0)
2396 else if (strcmp (name
, "<") == 0)
2398 else if (strcmp (name
, "<=") == 0)
2400 else if (strcasecmp (name
, "od") == 0)
2402 else if (strcasecmp (name
, "tr") == 0)
2407 else if (strcmp (name
, "<>") == 0)
2412 else if (strcmp (name
, ">=") == 0)
2417 else if (strcmp (name
, ">") == 0)
2422 else if (strcasecmp (name
, "ev") == 0)
2427 /* ",*" is a valid condition. */
2428 else if (*args
!= 'L')
2429 as_bad (_("Invalid Logical Instruction Condition."));
2432 opcode
|= cmpltr
<< 13;
2433 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2435 /* Handle a shift/extract/deposit condition. */
2444 /* 64 bit conditions. */
2457 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2461 if (strcmp (name
, "=") == 0)
2463 else if (strcmp (name
, "<") == 0)
2465 else if (strcasecmp (name
, "od") == 0)
2467 else if (strcasecmp (name
, "tr") == 0)
2469 else if (strcmp (name
, "<>") == 0)
2471 else if (strcmp (name
, ">=") == 0)
2473 else if (strcasecmp (name
, "ev") == 0)
2475 /* Handle movb,n. Put things back the way they were.
2476 This includes moving s back to where it started. */
2477 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2483 /* ",*" is a valid condition. */
2484 else if (*args
!= 'X')
2485 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2488 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2490 /* Handle a unit instruction condition. */
2499 /* 64 bit conditions. */
2510 if (strncasecmp (s
, "sbz", 3) == 0)
2515 else if (strncasecmp (s
, "shz", 3) == 0)
2520 else if (strncasecmp (s
, "sdc", 3) == 0)
2525 else if (strncasecmp (s
, "sbc", 3) == 0)
2530 else if (strncasecmp (s
, "shc", 3) == 0)
2535 else if (strncasecmp (s
, "tr", 2) == 0)
2541 else if (strncasecmp (s
, "nbz", 3) == 0)
2547 else if (strncasecmp (s
, "nhz", 3) == 0)
2553 else if (strncasecmp (s
, "ndc", 3) == 0)
2559 else if (strncasecmp (s
, "nbc", 3) == 0)
2565 else if (strncasecmp (s
, "nhc", 3) == 0)
2571 /* ",*" is a valid condition. */
2572 else if (*args
!= 'U')
2573 as_bad (_("Invalid Unit Instruction Condition."));
2575 opcode
|= cmpltr
<< 13;
2576 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2584 /* Handle a nullification completer for branch instructions. */
2586 nullif
= pa_parse_nullif (&s
);
2587 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2589 /* Handle a nullification completer for copr and spop insns. */
2591 nullif
= pa_parse_nullif (&s
);
2592 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2595 /* Handle a 11 bit immediate at 31. */
2597 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2600 if (the_insn
.exp
.X_op
== O_constant
)
2602 num
= evaluate_absolute (&the_insn
);
2603 CHECK_FIELD (num
, 1023, -1024, 0);
2604 low_sign_unext (num
, 11, &num
);
2605 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2609 if (is_DP_relative (the_insn
.exp
))
2610 the_insn
.reloc
= R_HPPA_GOTOFF
;
2611 else if (is_PC_relative (the_insn
.exp
))
2612 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2614 the_insn
.reloc
= R_HPPA
;
2615 the_insn
.format
= 11;
2620 /* Handle a 14 bit immediate at 31. */
2622 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2625 if (the_insn
.exp
.X_op
== O_constant
)
2627 num
= evaluate_absolute (&the_insn
);
2628 CHECK_FIELD (num
, 8191, -8192, 0);
2629 low_sign_unext (num
, 14, &num
);
2630 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2634 if (is_DP_relative (the_insn
.exp
))
2635 the_insn
.reloc
= R_HPPA_GOTOFF
;
2636 else if (is_PC_relative (the_insn
.exp
))
2637 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2639 the_insn
.reloc
= R_HPPA
;
2640 the_insn
.format
= 14;
2644 /* Handle a 21 bit immediate at 31. */
2646 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2649 if (the_insn
.exp
.X_op
== O_constant
)
2651 num
= evaluate_absolute (&the_insn
);
2652 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2653 dis_assemble_21 (num
, &num
);
2654 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2658 if (is_DP_relative (the_insn
.exp
))
2659 the_insn
.reloc
= R_HPPA_GOTOFF
;
2660 else if (is_PC_relative (the_insn
.exp
))
2661 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2663 the_insn
.reloc
= R_HPPA
;
2664 the_insn
.format
= 21;
2668 /* Handle a 12 bit branch displacement. */
2670 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2674 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2676 unsigned int w1
, w
, result
;
2678 num
= evaluate_absolute (&the_insn
);
2681 as_bad (_("Branch to unaligned address"));
2684 CHECK_FIELD (num
, 8199, -8184, 0);
2685 sign_unext ((num
- 8) >> 2, 12, &result
);
2686 dis_assemble_12 (result
, &w1
, &w
);
2687 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2691 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2692 the_insn
.format
= 12;
2693 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2694 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2699 /* Handle a 17 bit branch displacement. */
2701 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2705 if (!the_insn
.exp
.X_add_symbol
2706 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2709 unsigned int w2
, w1
, w
, result
;
2711 num
= evaluate_absolute (&the_insn
);
2714 as_bad (_("Branch to unaligned address"));
2717 CHECK_FIELD (num
, 262143, -262144, 0);
2719 if (the_insn
.exp
.X_add_symbol
)
2722 sign_unext (num
>> 2, 17, &result
);
2723 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2724 INSERT_FIELD_AND_CONTINUE (opcode
,
2725 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2729 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2730 the_insn
.format
= 17;
2731 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2732 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2736 /* Handle an absolute 17 bit branch target. */
2738 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2742 if (!the_insn
.exp
.X_add_symbol
2743 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2746 unsigned int w2
, w1
, w
, result
;
2748 num
= evaluate_absolute (&the_insn
);
2751 as_bad (_("Branch to unaligned address"));
2754 CHECK_FIELD (num
, 262143, -262144, 0);
2756 if (the_insn
.exp
.X_add_symbol
)
2759 sign_unext (num
>> 2, 17, &result
);
2760 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2761 INSERT_FIELD_AND_CONTINUE (opcode
,
2762 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2766 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2767 the_insn
.format
= 17;
2768 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2769 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2773 /* Handle a 2 bit shift count at 25. */
2775 num
= pa_get_absolute_expression (&the_insn
, &s
);
2777 CHECK_FIELD (num
, 3, 1, 0);
2778 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2780 /* Handle a 4 bit shift count at 25. */
2782 num
= pa_get_absolute_expression (&the_insn
, &s
);
2784 CHECK_FIELD (num
, 15, 0, 0);
2785 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2787 /* Handle a 5 bit shift count at 26. */
2789 num
= pa_get_absolute_expression (&the_insn
, &s
);
2791 CHECK_FIELD (num
, 31, 0, 0);
2792 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2794 /* Handle a 6 bit shift count at 20,22:26. */
2796 num
= pa_get_absolute_expression (&the_insn
, &s
);
2798 CHECK_FIELD (num
, 63, 0, 0);
2800 opcode
|= (num
& 0x20) << 6;
2801 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2803 /* Handle a 5 bit bit position at 26. */
2805 num
= pa_get_absolute_expression (&the_insn
, &s
);
2807 CHECK_FIELD (num
, 31, 0, 0);
2808 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2810 /* Handle a 5 bit immediate at 10. */
2813 num
= pa_get_absolute_expression (&the_insn
, &s
);
2814 if (the_insn
.exp
.X_op
!= O_constant
)
2817 CHECK_FIELD (num
, 31, 0, 0);
2818 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2820 /* Handle a 9 bit immediate at 28. */
2822 num
= pa_get_absolute_expression (&the_insn
, &s
);
2824 CHECK_FIELD (num
, 511, 1, 0);
2825 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
2827 /* Handle a 13 bit immediate at 18. */
2829 num
= pa_get_absolute_expression (&the_insn
, &s
);
2831 CHECK_FIELD (num
, 8191, 0, 0);
2832 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2834 /* Handle a 26 bit immediate at 31. */
2836 num
= pa_get_absolute_expression (&the_insn
, &s
);
2838 CHECK_FIELD (num
, 671108864, 0, 0);
2839 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2841 /* Handle a 3 bit SFU identifier at 25. */
2844 as_bad (_("Invalid SFU identifier"));
2845 num
= pa_get_absolute_expression (&the_insn
, &s
);
2847 CHECK_FIELD (num
, 7, 0, 0);
2848 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2850 /* Handle a 20 bit SOP field for spop0. */
2852 num
= pa_get_absolute_expression (&the_insn
, &s
);
2854 CHECK_FIELD (num
, 1048575, 0, 0);
2855 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2856 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2858 /* Handle a 15bit SOP field for spop1. */
2860 num
= pa_get_absolute_expression (&the_insn
, &s
);
2862 CHECK_FIELD (num
, 32767, 0, 0);
2863 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2865 /* Handle a 10bit SOP field for spop3. */
2867 num
= pa_get_absolute_expression (&the_insn
, &s
);
2869 CHECK_FIELD (num
, 1023, 0, 0);
2870 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
2871 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2873 /* Handle a 15 bit SOP field for spop2. */
2875 num
= pa_get_absolute_expression (&the_insn
, &s
);
2877 CHECK_FIELD (num
, 32767, 0, 0);
2878 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
2879 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2881 /* Handle a 3-bit co-processor ID field. */
2884 as_bad (_("Invalid COPR identifier"));
2885 num
= pa_get_absolute_expression (&the_insn
, &s
);
2887 CHECK_FIELD (num
, 7, 0, 0);
2888 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2890 /* Handle a 22bit SOP field for copr. */
2892 num
= pa_get_absolute_expression (&the_insn
, &s
);
2894 CHECK_FIELD (num
, 4194303, 0, 0);
2895 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
2896 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2899 /* Handle a source FP operand format completer. */
2901 flag
= pa_parse_fp_format (&s
);
2902 the_insn
.fpof1
= flag
;
2903 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2905 /* Handle a destination FP operand format completer. */
2907 /* pa_parse_format needs the ',' prefix. */
2909 flag
= pa_parse_fp_format (&s
);
2910 the_insn
.fpof2
= flag
;
2911 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
2913 /* Handle a source FP operand format completer at 20. */
2915 flag
= pa_parse_fp_format (&s
);
2916 the_insn
.fpof1
= flag
;
2917 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2919 /* Handle L/R register halves like 't'. */
2922 struct pa_11_fp_reg_struct result
;
2924 pa_parse_number (&s
, &result
);
2925 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2926 opcode
|= result
.number_part
;
2928 /* 0x30 opcodes are FP arithmetic operation opcodes
2929 and need to be turned into 0x38 opcodes. This
2930 is not necessary for loads/stores. */
2931 if (need_pa11_opcode (&the_insn
, &result
)
2932 && ((opcode
& 0xfc000000) == 0x30000000))
2935 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
2938 /* Handle L/R register halves like 'b'. */
2941 struct pa_11_fp_reg_struct result
;
2943 pa_parse_number (&s
, &result
);
2944 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2945 opcode
|= result
.number_part
<< 21;
2946 if (need_pa11_opcode (&the_insn
, &result
))
2948 opcode
|= (result
.l_r_select
& 1) << 7;
2954 /* Float operand 1 similar to 'b' but with l/r registers. */
2957 struct pa_11_fp_reg_struct result
;
2959 pa_parse_number (&s
, &result
);
2960 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2961 opcode
|= result
.number_part
<< 21;
2962 opcode
|= (result
.l_r_select
& 1) << 7;
2966 /* Handle L/R register halves like 'b'. */
2969 struct pa_11_fp_reg_struct result
;
2972 pa_parse_number (&s
, &result
);
2973 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2974 opcode
|= (result
.number_part
& 0x1c) << 11;
2975 opcode
|= (result
.number_part
& 0x3) << 9;
2976 opcode
|= (result
.l_r_select
& 1) << 8;
2980 /* Handle L/R register halves like 'x'. */
2983 struct pa_11_fp_reg_struct result
;
2985 pa_parse_number (&s
, &result
);
2986 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2987 opcode
|= (result
.number_part
& 0x1f) << 16;
2988 if (need_pa11_opcode (&the_insn
, &result
))
2990 opcode
|= (result
.l_r_select
& 1) << 1;
2995 /* Handle L/R register halves like 'x'. */
2998 struct pa_11_fp_reg_struct result
;
3000 pa_parse_number (&s
, &result
);
3001 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3002 opcode
|= (result
.number_part
& 0x1f) << 16;
3003 if (need_pa11_opcode (&the_insn
, &result
))
3005 opcode
|= (result
.l_r_select
& 1) << 12;
3011 /* Float operand 2, like 'x' but with l/r register halves. */
3014 struct pa_11_fp_reg_struct result
;
3016 pa_parse_number (&s
, &result
);
3017 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3018 opcode
|= (result
.number_part
& 0x1f) << 16;
3019 opcode
|= (result
.l_r_select
& 1) << 12;
3023 /* Handle a 5 bit register field at 10. */
3026 struct pa_11_fp_reg_struct result
;
3028 pa_parse_number (&s
, &result
);
3029 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3030 if (the_insn
.fpof1
== SGL
)
3032 if (result
.number_part
< 16)
3034 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3038 result
.number_part
&= 0xF;
3039 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3041 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
3044 /* Handle a 5 bit register field at 15. */
3047 struct pa_11_fp_reg_struct result
;
3049 pa_parse_number (&s
, &result
);
3050 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3051 if (the_insn
.fpof1
== SGL
)
3053 if (result
.number_part
< 16)
3055 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3058 result
.number_part
&= 0xF;
3059 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3061 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
3064 /* Handle a 5 bit register field at 31. */
3067 struct pa_11_fp_reg_struct result
;
3069 pa_parse_number (&s
, &result
);
3070 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3071 if (the_insn
.fpof1
== SGL
)
3073 if (result
.number_part
< 16)
3075 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3078 result
.number_part
&= 0xF;
3079 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3081 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
3084 /* Handle a 5 bit register field at 20. */
3087 struct pa_11_fp_reg_struct result
;
3089 pa_parse_number (&s
, &result
);
3090 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3091 if (the_insn
.fpof1
== SGL
)
3093 if (result
.number_part
< 16)
3095 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3098 result
.number_part
&= 0xF;
3099 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3101 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
3104 /* Handle a 5 bit register field at 25. */
3107 struct pa_11_fp_reg_struct result
;
3109 pa_parse_number (&s
, &result
);
3110 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3111 if (the_insn
.fpof1
== SGL
)
3113 if (result
.number_part
< 16)
3115 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3118 result
.number_part
&= 0xF;
3119 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3121 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
3124 /* Handle a floating point operand format at 26.
3125 Only allows single and double precision. */
3127 flag
= pa_parse_fp_format (&s
);
3133 the_insn
.fpof1
= flag
;
3139 as_bad (_("Invalid Floating Point Operand Format."));
3150 /* Check if the args matched. */
3153 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
3154 && !strcmp (insn
->name
, insn
[1].name
))
3162 as_bad (_("Invalid operands %s"), error_message
);
3169 the_insn
.opcode
= opcode
;
3172 /* Turn a string in input_line_pointer into a floating point constant of type
3173 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3174 emitted is stored in *sizeP . An error message or NULL is returned. */
3176 #define MAX_LITTLENUMS 6
3179 md_atof (type
, litP
, sizeP
)
3185 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
3186 LITTLENUM_TYPE
*wordP
;
3218 return _("Bad call to MD_ATOF()");
3220 t
= atof_ieee (input_line_pointer
, type
, words
);
3222 input_line_pointer
= t
;
3223 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
3224 for (wordP
= words
; prec
--;)
3226 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
3227 litP
+= sizeof (LITTLENUM_TYPE
);
3232 /* Write out big-endian. */
3235 md_number_to_chars (buf
, val
, n
)
3240 number_to_chars_bigendian (buf
, val
, n
);
3243 /* Translate internal representation of relocation info to BFD target
3247 tc_gen_reloc (section
, fixp
)
3252 struct hppa_fix_struct
*hppa_fixp
;
3253 bfd_reloc_code_real_type code
;
3254 static arelent
*no_relocs
= NULL
;
3256 bfd_reloc_code_real_type
**codes
;
3260 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
3261 if (fixp
->fx_addsy
== 0)
3263 assert (hppa_fixp
!= 0);
3264 assert (section
!= 0);
3266 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
3268 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3269 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3270 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
3272 hppa_fixp
->fx_r_format
,
3273 hppa_fixp
->fx_r_field
,
3274 fixp
->fx_subsy
!= NULL
,
3275 symbol_get_bfdsym (fixp
->fx_addsy
));
3280 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
3283 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
3284 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
3285 for (i
= 0; i
< n_relocs
; i
++)
3286 relocs
[i
] = &reloc
[i
];
3288 relocs
[n_relocs
] = NULL
;
3291 switch (fixp
->fx_r_type
)
3294 assert (n_relocs
== 1);
3298 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3299 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3300 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3301 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3302 reloc
->addend
= 0; /* default */
3304 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
3306 /* Now, do any processing that is dependent on the relocation type. */
3309 case R_PARISC_DLTREL21L
:
3310 case R_PARISC_DLTREL14R
:
3311 case R_PARISC_DLTREL14F
:
3312 case R_PARISC_PLABEL32
:
3313 case R_PARISC_PLABEL21L
:
3314 case R_PARISC_PLABEL14R
:
3315 /* For plabel relocations, the addend of the
3316 relocation should be either 0 (no static link) or 2
3317 (static link required).
3319 FIXME: We always assume no static link!
3321 We also slam a zero addend into the DLT relative relocs;
3322 it doesn't make a lot of sense to use any addend since
3323 it gets you a different (eg unknown) DLT entry. */
3327 case R_PARISC_PCREL21L
:
3328 case R_PARISC_PCREL17R
:
3329 case R_PARISC_PCREL17F
:
3330 case R_PARISC_PCREL17C
:
3331 case R_PARISC_PCREL14R
:
3332 case R_PARISC_PCREL14F
:
3333 /* The constant is stored in the instruction. */
3334 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3337 reloc
->addend
= fixp
->fx_offset
;
3344 /* Walk over reach relocation returned by the BFD backend. */
3345 for (i
= 0; i
< n_relocs
; i
++)
3349 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3350 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3351 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3352 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3357 /* The only time we ever use a R_COMP2 fixup is for the difference
3358 of two symbols. With that in mind we fill in all four
3359 relocs now and break out of the loop. */
3361 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3362 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
3363 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3364 relocs
[0]->addend
= 0;
3365 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3366 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3367 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
3368 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3369 relocs
[1]->addend
= 0;
3370 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3371 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3372 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3373 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3374 relocs
[2]->addend
= 0;
3375 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3376 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3377 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3378 relocs
[3]->addend
= 0;
3379 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3380 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3381 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3382 relocs
[4]->addend
= 0;
3386 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3392 /* For plabel relocations, the addend of the
3393 relocation should be either 0 (no static link) or 2
3394 (static link required).
3396 FIXME: We always assume no static link!
3398 We also slam a zero addend into the DLT relative relocs;
3399 it doesn't make a lot of sense to use any addend since
3400 it gets you a different (eg unknown) DLT entry. */
3401 relocs
[i
]->addend
= 0;
3416 /* There is no symbol or addend associated with these fixups. */
3417 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3418 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3419 relocs
[i
]->addend
= 0;
3425 /* There is no symbol associated with these fixups. */
3426 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3427 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3428 relocs
[i
]->addend
= fixp
->fx_offset
;
3432 relocs
[i
]->addend
= fixp
->fx_offset
;
3442 /* Process any machine dependent frag types. */
3445 md_convert_frag (abfd
, sec
, fragP
)
3447 register asection
*sec
;
3448 register fragS
*fragP
;
3450 unsigned int address
;
3452 if (fragP
->fr_type
== rs_machine_dependent
)
3454 switch ((int) fragP
->fr_subtype
)
3457 fragP
->fr_type
= rs_fill
;
3458 know (fragP
->fr_var
== 1);
3459 know (fragP
->fr_next
);
3460 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3461 if (address
% fragP
->fr_offset
)
3464 fragP
->fr_next
->fr_address
3469 fragP
->fr_offset
= 0;
3475 /* Round up a section size to the appropriate boundary. */
3478 md_section_align (segment
, size
)
3482 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3483 int align2
= (1 << align
) - 1;
3485 return (size
+ align2
) & ~align2
;
3488 /* Return the approximate size of a frag before relaxation has occurred. */
3490 md_estimate_size_before_relax (fragP
, segment
)
3491 register fragS
*fragP
;
3498 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3504 CONST
char *md_shortopts
= "";
3505 struct option md_longopts
[] = {
3506 {NULL
, no_argument
, NULL
, 0}
3508 size_t md_longopts_size
= sizeof(md_longopts
);
3511 md_parse_option (c
, arg
)
3519 md_show_usage (stream
)
3524 /* We have no need to default values of symbols. */
3527 md_undefined_symbol (name
)
3533 /* Apply a fixup to an instruction. */
3536 md_apply_fix (fixP
, valp
)
3540 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3541 struct hppa_fix_struct
*hppa_fixP
;
3542 long new_val
, result
= 0;
3543 unsigned int w1
, w2
, w
, resulti
;
3545 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3546 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3547 never be "applied" (they are just markers). Likewise for
3548 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3550 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3551 || fixP
->fx_r_type
== R_HPPA_EXIT
3552 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3553 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3554 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3557 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3558 fixups are considered not adjustable, which in turn causes
3559 adjust_reloc_syms to not set fx_offset. Ugh. */
3560 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3562 fixP
->fx_offset
= *valp
;
3567 /* There should have been an HPPA specific fixup associated
3568 with the GAS fixup. */
3571 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3572 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3574 /* If there is a symbol associated with this fixup, then it's something
3575 which will need a SOM relocation (except for some PC-relative relocs).
3576 In such cases we should treat the "val" or "addend" as zero since it
3577 will be added in as needed from fx_offset in tc_gen_reloc. */
3578 if ((fixP
->fx_addsy
!= NULL
3579 || fixP
->fx_r_type
== R_HPPA_NONE
)
3584 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3586 /* These field selectors imply that we do not want an addend. */
3587 else if (hppa_fixP
->fx_r_field
== e_psel
3588 || hppa_fixP
->fx_r_field
== e_rpsel
3589 || hppa_fixP
->fx_r_field
== e_lpsel
3590 || hppa_fixP
->fx_r_field
== e_tsel
3591 || hppa_fixP
->fx_r_field
== e_rtsel
3592 || hppa_fixP
->fx_r_field
== e_ltsel
)
3593 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3594 /* This is truely disgusting. The machine independent code blindly
3595 adds in the value of the symbol being relocated against. Damn! */
3597 && fixP
->fx_addsy
!= NULL
3598 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3599 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3600 0, hppa_fixP
->fx_r_field
);
3603 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3605 /* Handle pc-relative exceptions from above. */
3606 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3607 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3608 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3612 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3613 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3614 hppa_fixP
->fx_arg_reloc
)
3616 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3617 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3619 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3621 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3622 #undef arg_reloc_stub_needed
3626 /* Handle all opcodes with the 'j' operand type. */
3628 CHECK_FIELD (new_val
, 8191, -8192, 0);
3630 /* Mask off 14 bits to be changed. */
3631 bfd_put_32 (stdoutput
,
3632 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3634 low_sign_unext (new_val
, 14, &resulti
);
3638 /* Handle all opcodes with the 'k' operand type. */
3640 CHECK_FIELD (new_val
, 2097152, 0, 0);
3642 /* Mask off 21 bits to be changed. */
3643 bfd_put_32 (stdoutput
,
3644 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3646 dis_assemble_21 (new_val
, &resulti
);
3650 /* Handle all the opcodes with the 'i' operand type. */
3652 CHECK_FIELD (new_val
, 1023, -1023, 0);
3654 /* Mask off 11 bits to be changed. */
3655 bfd_put_32 (stdoutput
,
3656 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3658 low_sign_unext (new_val
, 11, &resulti
);
3662 /* Handle all the opcodes with the 'w' operand type. */
3664 CHECK_FIELD (new_val
, 8199, -8184, 0);
3666 /* Mask off 11 bits to be changed. */
3667 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3668 bfd_put_32 (stdoutput
,
3669 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3672 dis_assemble_12 (resulti
, &w1
, &w
);
3673 result
= ((w1
<< 2) | w
);
3676 /* Handle some of the opcodes with the 'W' operand type. */
3679 int distance
= *valp
;
3681 CHECK_FIELD (new_val
, 262143, -262144, 0);
3683 /* If this is an absolute branch (ie no link) with an out of
3684 range target, then we want to complain. */
3685 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3686 && (distance
> 262143 || distance
< -262144)
3687 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3688 CHECK_FIELD (distance
, 262143, -262144, 0);
3690 /* Mask off 17 bits to be changed. */
3691 bfd_put_32 (stdoutput
,
3692 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3694 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3695 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3696 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3702 bfd_put_32 (stdoutput
, new_val
, buf
);
3706 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3710 /* Insert the relocation. */
3711 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3716 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3717 (unsigned int) fixP
, fixP
->fx_r_type
);
3722 /* Exactly what point is a PC-relative offset relative TO?
3723 On the PA, they're relative to the address of the offset. */
3726 md_pcrel_from (fixP
)
3729 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3732 /* Return nonzero if the input line pointer is at the end of
3736 is_end_of_statement ()
3738 return ((*input_line_pointer
== '\n')
3739 || (*input_line_pointer
== ';')
3740 || (*input_line_pointer
== '!'));
3743 /* Read a number from S. The number might come in one of many forms,
3744 the most common will be a hex or decimal constant, but it could be
3745 a pre-defined register (Yuk!), or an absolute symbol.
3747 Return a number or -1 for failure.
3749 When parsing PA-89 FP register numbers RESULT will be
3750 the address of a structure to return information about
3751 L/R half of FP registers, store results there as appropriate.
3753 pa_parse_number can not handle negative constants and will fail
3754 horribly if it is passed such a constant. */
3757 pa_parse_number (s
, result
)
3759 struct pa_11_fp_reg_struct
*result
;
3768 /* Skip whitespace before the number. */
3769 while (*p
== ' ' || *p
== '\t')
3772 /* Store info in RESULT if requested by caller. */
3775 result
->number_part
= -1;
3776 result
->l_r_select
= -1;
3782 /* Looks like a number. */
3785 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3787 /* The number is specified in hex. */
3789 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3790 || ((*p
>= 'A') && (*p
<= 'F')))
3793 num
= num
* 16 + *p
- '0';
3794 else if (*p
>= 'a' && *p
<= 'f')
3795 num
= num
* 16 + *p
- 'a' + 10;
3797 num
= num
* 16 + *p
- 'A' + 10;
3803 /* The number is specified in decimal. */
3804 while (isdigit (*p
))
3806 num
= num
* 10 + *p
- '0';
3811 /* Store info in RESULT if requested by the caller. */
3814 result
->number_part
= num
;
3816 if (IS_R_SELECT (p
))
3818 result
->l_r_select
= 1;
3821 else if (IS_L_SELECT (p
))
3823 result
->l_r_select
= 0;
3827 result
->l_r_select
= 0;
3832 /* The number might be a predefined register. */
3837 /* Tege hack: Special case for general registers as the general
3838 code makes a binary search with case translation, and is VERY
3843 if (*p
== 'e' && *(p
+ 1) == 't'
3844 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3847 num
= *p
- '0' + 28;
3855 else if (!isdigit (*p
))
3858 as_bad (_("Undefined register: '%s'."), name
);
3864 num
= num
* 10 + *p
++ - '0';
3865 while (isdigit (*p
));
3870 /* Do a normal register search. */
3871 while (is_part_of_name (c
))
3877 status
= reg_name_search (name
);
3883 as_bad (_("Undefined register: '%s'."), name
);
3889 /* Store info in RESULT if requested by caller. */
3892 result
->number_part
= num
;
3893 if (IS_R_SELECT (p
- 1))
3894 result
->l_r_select
= 1;
3895 else if (IS_L_SELECT (p
- 1))
3896 result
->l_r_select
= 0;
3898 result
->l_r_select
= 0;
3903 /* And finally, it could be a symbol in the absolute section which
3904 is effectively a constant. */
3908 while (is_part_of_name (c
))
3914 if ((sym
= symbol_find (name
)) != NULL
)
3916 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3917 num
= S_GET_VALUE (sym
);
3921 as_bad (_("Non-absolute symbol: '%s'."), name
);
3927 /* There is where we'd come for an undefined symbol
3928 or for an empty string. For an empty string we
3929 will return zero. That's a concession made for
3930 compatability with the braindamaged HP assemblers. */
3936 as_bad (_("Undefined absolute constant: '%s'."), name
);
3942 /* Store info in RESULT if requested by caller. */
3945 result
->number_part
= num
;
3946 if (IS_R_SELECT (p
- 1))
3947 result
->l_r_select
= 1;
3948 else if (IS_L_SELECT (p
- 1))
3949 result
->l_r_select
= 0;
3951 result
->l_r_select
= 0;
3959 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3961 /* Given NAME, find the register number associated with that name, return
3962 the integer value associated with the given name or -1 on failure. */
3965 reg_name_search (name
)
3968 int middle
, low
, high
;
3972 high
= REG_NAME_CNT
- 1;
3976 middle
= (low
+ high
) / 2;
3977 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
3983 return pre_defined_registers
[middle
].value
;
3985 while (low
<= high
);
3991 /* Return nonzero if the given INSN and L/R information will require
3992 a new PA-1.1 opcode. */
3995 need_pa11_opcode (insn
, result
)
3997 struct pa_11_fp_reg_struct
*result
;
3999 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
4001 /* If this instruction is specific to a particular architecture,
4002 then set a new architecture. */
4003 if (bfd_get_mach (stdoutput
) < pa11
)
4005 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
4006 as_warn (_("could not update architecture and machine"));
4014 /* Parse a condition for a fcmp instruction. Return the numerical
4015 code associated with the condition. */
4018 pa_parse_fp_cmp_cond (s
)
4025 for (i
= 0; i
< 32; i
++)
4027 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
4028 strlen (fp_cond_map
[i
].string
)) == 0)
4030 cond
= fp_cond_map
[i
].cond
;
4031 *s
+= strlen (fp_cond_map
[i
].string
);
4032 /* If not a complete match, back up the input string and
4034 if (**s
!= ' ' && **s
!= '\t')
4036 *s
-= strlen (fp_cond_map
[i
].string
);
4039 while (**s
== ' ' || **s
== '\t')
4045 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
4047 /* Advance over the bogus completer. */
4048 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4055 /* Parse an FP operand format completer returning the completer
4058 static fp_operand_format
4059 pa_parse_fp_format (s
)
4068 if (strncasecmp (*s
, "sgl", 3) == 0)
4073 else if (strncasecmp (*s
, "dbl", 3) == 0)
4078 else if (strncasecmp (*s
, "quad", 4) == 0)
4085 format
= ILLEGAL_FMT
;
4086 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
4093 /* Convert from a selector string into a selector type. */
4096 pa_chk_field_selector (str
)
4099 int middle
, low
, high
;
4103 /* Read past any whitespace. */
4104 /* FIXME: should we read past newlines and formfeeds??? */
4105 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
4108 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
4109 name
[0] = tolower ((*str
)[0]),
4111 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
4112 name
[0] = tolower ((*str
)[0]),
4113 name
[1] = tolower ((*str
)[1]),
4115 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
4116 name
[0] = tolower ((*str
)[0]),
4117 name
[1] = tolower ((*str
)[1]),
4118 name
[2] = tolower ((*str
)[2]),
4124 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
4128 middle
= (low
+ high
) / 2;
4129 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
4136 *str
+= strlen (name
) + 1;
4138 if (selector_table
[middle
].field_selector
== e_nsel
)
4141 return selector_table
[middle
].field_selector
;
4144 while (low
<= high
);
4149 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
4152 get_expression (str
)
4158 save_in
= input_line_pointer
;
4159 input_line_pointer
= str
;
4160 seg
= expression (&the_insn
.exp
);
4161 if (!(seg
== absolute_section
4162 || seg
== undefined_section
4163 || SEG_NORMAL (seg
)))
4165 as_warn (_("Bad segment in expression."));
4166 expr_end
= input_line_pointer
;
4167 input_line_pointer
= save_in
;
4170 expr_end
= input_line_pointer
;
4171 input_line_pointer
= save_in
;
4175 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
4177 pa_get_absolute_expression (insn
, strp
)
4183 insn
->field_selector
= pa_chk_field_selector (strp
);
4184 save_in
= input_line_pointer
;
4185 input_line_pointer
= *strp
;
4186 expression (&insn
->exp
);
4187 /* This is not perfect, but is a huge improvement over doing nothing.
4189 The PA assembly syntax is ambigious in a variety of ways. Consider
4190 this string "4 %r5" Is that the number 4 followed by the register
4191 r5, or is that 4 MOD 5?
4193 If we get a modulo expresion When looking for an absolute, we try
4194 again cutting off the input string at the first whitespace character. */
4195 if (insn
->exp
.X_op
== O_modulus
)
4200 input_line_pointer
= *strp
;
4202 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4208 retval
= pa_get_absolute_expression (insn
, strp
);
4210 input_line_pointer
= save_in
;
4212 return evaluate_absolute (insn
);
4214 if (insn
->exp
.X_op
!= O_constant
)
4216 as_bad (_("Bad segment (should be absolute)."));
4217 expr_end
= input_line_pointer
;
4218 input_line_pointer
= save_in
;
4221 expr_end
= input_line_pointer
;
4222 input_line_pointer
= save_in
;
4223 return evaluate_absolute (insn
);
4226 /* Evaluate an absolute expression EXP which may be modified by
4227 the selector FIELD_SELECTOR. Return the value of the expression. */
4229 evaluate_absolute (insn
)
4234 int field_selector
= insn
->field_selector
;
4237 value
= exp
.X_add_number
;
4239 switch (field_selector
)
4245 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4247 if (value
& 0x00000400)
4249 value
= (value
& 0xfffff800) >> 11;
4252 /* Sign extend from bit 21. */
4254 if (value
& 0x00000400)
4255 value
|= 0xfffff800;
4260 /* Arithmetic shift right 11 bits. */
4262 value
= (value
& 0xfffff800) >> 11;
4265 /* Set bits 0-20 to zero. */
4267 value
= value
& 0x7ff;
4270 /* Add 0x800 and arithmetic shift right 11 bits. */
4273 value
= (value
& 0xfffff800) >> 11;
4276 /* Set bitgs 0-21 to one. */
4278 value
|= 0xfffff800;
4281 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
4283 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
4287 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
4292 BAD_CASE (field_selector
);
4298 /* Given an argument location specification return the associated
4299 argument location number. */
4302 pa_build_arg_reloc (type_name
)
4306 if (strncasecmp (type_name
, "no", 2) == 0)
4308 if (strncasecmp (type_name
, "gr", 2) == 0)
4310 else if (strncasecmp (type_name
, "fr", 2) == 0)
4312 else if (strncasecmp (type_name
, "fu", 2) == 0)
4315 as_bad (_("Invalid argument location: %s\n"), type_name
);
4320 /* Encode and return an argument relocation specification for
4321 the given register in the location specified by arg_reloc. */
4324 pa_align_arg_reloc (reg
, arg_reloc
)
4326 unsigned int arg_reloc
;
4328 unsigned int new_reloc
;
4330 new_reloc
= arg_reloc
;
4346 as_bad (_("Invalid argument description: %d"), reg
);
4352 /* Parse a PA nullification completer (,n). Return nonzero if the
4353 completer was found; return zero if no completer was found. */
4365 if (strncasecmp (*s
, "n", 1) == 0)
4369 as_bad (_("Invalid Nullification: (%c)"), **s
);
4378 /* Parse a non-negated compare/subtract completer returning the
4379 number (for encoding in instrutions) of the given completer.
4381 ISBRANCH specifies whether or not this is parsing a condition
4382 completer for a branch (vs a nullification completer for a
4383 computational instruction. */
4386 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4391 char *name
= *s
+ 1;
4400 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4406 if (strcmp (name
, "=") == 0)
4410 else if (strcmp (name
, "<") == 0)
4414 else if (strcmp (name
, "<=") == 0)
4418 else if (strcmp (name
, "<<") == 0)
4422 else if (strcmp (name
, "<<=") == 0)
4426 else if (strcasecmp (name
, "sv") == 0)
4430 else if (strcasecmp (name
, "od") == 0)
4434 /* If we have something like addb,n then there is no condition
4436 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4448 /* Reset pointers if this was really a ,n for a branch instruction. */
4456 /* Parse a negated compare/subtract completer returning the
4457 number (for encoding in instrutions) of the given completer.
4459 ISBRANCH specifies whether or not this is parsing a condition
4460 completer for a branch (vs a nullification completer for a
4461 computational instruction. */
4464 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4469 char *name
= *s
+ 1;
4478 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4484 if (strcasecmp (name
, "tr") == 0)
4488 else if (strcmp (name
, "<>") == 0)
4492 else if (strcmp (name
, ">=") == 0)
4496 else if (strcmp (name
, ">") == 0)
4500 else if (strcmp (name
, ">>=") == 0)
4504 else if (strcmp (name
, ">>") == 0)
4508 else if (strcasecmp (name
, "nsv") == 0)
4512 else if (strcasecmp (name
, "ev") == 0)
4516 /* If we have something like addb,n then there is no condition
4518 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4530 /* Reset pointers if this was really a ,n for a branch instruction. */
4539 /* Parse a non-negated addition completer returning the number
4540 (for encoding in instrutions) of the given completer.
4542 ISBRANCH specifies whether or not this is parsing a condition
4543 completer for a branch (vs a nullification completer for a
4544 computational instruction. */
4547 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4552 char *name
= *s
+ 1;
4560 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4564 if (strcmp (name
, "=") == 0)
4568 else if (strcmp (name
, "<") == 0)
4572 else if (strcmp (name
, "<=") == 0)
4576 else if (strcasecmp (name
, "nuv") == 0)
4580 else if (strcasecmp (name
, "znv") == 0)
4584 else if (strcasecmp (name
, "sv") == 0)
4588 else if (strcasecmp (name
, "od") == 0)
4592 /* If we have something like addb,n then there is no condition
4594 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4605 /* Reset pointers if this was really a ,n for a branch instruction. */
4606 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4612 /* Parse a negated addition completer returning the number
4613 (for encoding in instrutions) of the given completer.
4615 ISBRANCH specifies whether or not this is parsing a condition
4616 completer for a branch (vs a nullification completer for a
4617 computational instruction). */
4620 pa_parse_neg_add_cmpltr (s
, isbranch
)
4625 char *name
= *s
+ 1;
4633 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4637 if (strcasecmp (name
, "tr") == 0)
4641 else if (strcmp (name
, "<>") == 0)
4645 else if (strcmp (name
, ">=") == 0)
4649 else if (strcmp (name
, ">") == 0)
4653 else if (strcasecmp (name
, "uv") == 0)
4657 else if (strcasecmp (name
, "vnz") == 0)
4661 else if (strcasecmp (name
, "nsv") == 0)
4665 else if (strcasecmp (name
, "ev") == 0)
4669 /* If we have something like addb,n then there is no condition
4671 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4682 /* Reset pointers if this was really a ,n for a branch instruction. */
4683 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4690 /* Handle an alignment directive. Special so that we can update the
4691 alignment of the subspace if necessary. */
4695 /* We must have a valid space and subspace. */
4696 pa_check_current_space_and_subspace ();
4698 /* Let the generic gas code do most of the work. */
4699 s_align_bytes (bytes
);
4701 /* If bytes is a power of 2, then update the current subspace's
4702 alignment if necessary. */
4703 if (log2 (bytes
) != -1)
4704 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4708 /* Handle a .BLOCK type pseudo-op. */
4716 unsigned int temp_size
;
4720 /* We must have a valid space and subspace. */
4721 pa_check_current_space_and_subspace ();
4724 temp_size
= get_absolute_expression ();
4726 /* Always fill with zeros, that's what the HP assembler does. */
4729 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4730 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4731 memset (p
, 0, temp_size
);
4733 /* Convert 2 bytes at a time. */
4735 for (i
= 0; i
< temp_size
; i
+= 2)
4737 md_number_to_chars (p
+ i
,
4739 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4742 pa_undefine_label ();
4743 demand_empty_rest_of_line ();
4746 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4754 /* The BRTAB relocations are only availble in SOM (to denote
4755 the beginning and end of branch tables). */
4756 char *where
= frag_more (0);
4758 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4759 NULL
, (offsetT
) 0, NULL
,
4760 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4761 e_fsel
, 0, 0, NULL
);
4764 demand_empty_rest_of_line ();
4767 /* Handle a .begin_try and .end_try pseudo-op. */
4775 char *where
= frag_more (0);
4780 /* The TRY relocations are only availble in SOM (to denote
4781 the beginning and end of exception handling regions). */
4783 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4784 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4785 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4786 e_fsel
, 0, 0, NULL
);
4789 demand_empty_rest_of_line ();
4792 /* Handle a .CALL pseudo-op. This involves storing away information
4793 about where arguments are to be found so the linker can detect
4794 (and correct) argument location mismatches between caller and callee. */
4801 /* We must have a valid space and subspace. */
4802 pa_check_current_space_and_subspace ();
4805 pa_call_args (&last_call_desc
);
4806 demand_empty_rest_of_line ();
4809 /* Do the dirty work of building a call descriptor which describes
4810 where the caller placed arguments to a function call. */
4813 pa_call_args (call_desc
)
4814 struct call_desc
*call_desc
;
4817 unsigned int temp
, arg_reloc
;
4819 while (!is_end_of_statement ())
4821 name
= input_line_pointer
;
4822 c
= get_symbol_end ();
4823 /* Process a source argument. */
4824 if ((strncasecmp (name
, "argw", 4) == 0))
4826 temp
= atoi (name
+ 4);
4827 p
= input_line_pointer
;
4829 input_line_pointer
++;
4830 name
= input_line_pointer
;
4831 c
= get_symbol_end ();
4832 arg_reloc
= pa_build_arg_reloc (name
);
4833 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4835 /* Process a return value. */
4836 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4838 p
= input_line_pointer
;
4840 input_line_pointer
++;
4841 name
= input_line_pointer
;
4842 c
= get_symbol_end ();
4843 arg_reloc
= pa_build_arg_reloc (name
);
4844 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4848 as_bad (_("Invalid .CALL argument: %s"), name
);
4850 p
= input_line_pointer
;
4852 if (!is_end_of_statement ())
4853 input_line_pointer
++;
4857 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4860 is_same_frag (frag1
, frag2
)
4867 else if (frag2
== NULL
)
4869 else if (frag1
== frag2
)
4871 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4872 return (is_same_frag (frag1
, frag2
->fr_next
));
4878 /* Build an entry in the UNWIND subspace from the given function
4879 attributes in CALL_INFO. This is not needed for SOM as using
4880 R_ENTRY and R_EXIT relocations allow the linker to handle building
4881 of the unwind spaces. */
4884 pa_build_unwind_subspace (call_info
)
4885 struct call_info
*call_info
;
4888 asection
*seg
, *save_seg
;
4890 subsegT subseg
, save_subseg
;
4894 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
4895 reloc
= R_PARISC_DIR32
;
4897 reloc
= R_PARISC_SEGREL32
;
4899 /* Get into the right seg/subseg. This may involve creating
4900 the seg the first time through. Make sure to have the
4901 old seg/subseg so that we can reset things when we are done. */
4902 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4903 if (seg
== ASEC_NULL
)
4905 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4906 bfd_set_section_flags (stdoutput
, seg
,
4907 SEC_READONLY
| SEC_HAS_CONTENTS
4908 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
4909 bfd_set_section_alignment (stdoutput
, seg
, 2);
4913 save_subseg
= now_subseg
;
4914 subseg_set (seg
, 0);
4917 /* Get some space to hold relocation information for the unwind
4920 md_number_to_chars (p
, 0, 4);
4922 /* Relocation info. for start offset of the function. */
4923 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4924 call_info
->start_symbol
, (offsetT
) 0,
4925 (expressionS
*) NULL
, 0, reloc
,
4926 e_fsel
, 32, 0, NULL
);
4929 md_number_to_chars (p
, 0, 4);
4931 /* Relocation info. for end offset of the function.
4933 Because we allow reductions of 32bit relocations for ELF, this will be
4934 reduced to section_sym + offset which avoids putting the temporary
4935 symbol into the symbol table. It (should) end up giving the same
4936 value as call_info->start_symbol + function size once the linker is
4937 finished with its work. */
4939 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4940 call_info
->end_symbol
, (offsetT
) 0,
4941 (expressionS
*) NULL
, 0, reloc
,
4942 e_fsel
, 32, 0, NULL
);
4945 unwind
= (char *) &call_info
->ci_unwind
;
4946 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4950 FRAG_APPEND_1_CHAR (c
);
4954 /* Return back to the original segment/subsegment. */
4955 subseg_set (save_seg
, save_subseg
);
4959 /* Process a .CALLINFO pseudo-op. This information is used later
4960 to build unwind descriptors and maybe one day to support
4961 .ENTER and .LEAVE. */
4964 pa_callinfo (unused
)
4971 /* We must have a valid space and subspace. */
4972 pa_check_current_space_and_subspace ();
4975 /* .CALLINFO must appear within a procedure definition. */
4976 if (!within_procedure
)
4977 as_bad (_(".callinfo is not within a procedure definition"));
4979 /* Mark the fact that we found the .CALLINFO for the
4980 current procedure. */
4981 callinfo_found
= TRUE
;
4983 /* Iterate over the .CALLINFO arguments. */
4984 while (!is_end_of_statement ())
4986 name
= input_line_pointer
;
4987 c
= get_symbol_end ();
4988 /* Frame size specification. */
4989 if ((strncasecmp (name
, "frame", 5) == 0))
4991 p
= input_line_pointer
;
4993 input_line_pointer
++;
4994 temp
= get_absolute_expression ();
4995 if ((temp
& 0x3) != 0)
4997 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
5001 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5002 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
5005 /* Entry register (GR, GR and SR) specifications. */
5006 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
5008 p
= input_line_pointer
;
5010 input_line_pointer
++;
5011 temp
= get_absolute_expression ();
5012 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5013 even though %r19 is caller saved. I think this is a bug in
5014 the HP assembler, and we are not going to emulate it. */
5015 if (temp
< 3 || temp
> 18)
5016 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5017 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
5019 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
5021 p
= input_line_pointer
;
5023 input_line_pointer
++;
5024 temp
= get_absolute_expression ();
5025 /* Similarly the HP assembler takes 31 as the high bound even
5026 though %fr21 is the last callee saved floating point register. */
5027 if (temp
< 12 || temp
> 21)
5028 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5029 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
5031 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
5033 p
= input_line_pointer
;
5035 input_line_pointer
++;
5036 temp
= get_absolute_expression ();
5038 as_bad (_("Value for ENTRY_SR must be 3\n"));
5040 /* Note whether or not this function performs any calls. */
5041 else if ((strncasecmp (name
, "calls", 5) == 0) ||
5042 (strncasecmp (name
, "caller", 6) == 0))
5044 p
= input_line_pointer
;
5047 else if ((strncasecmp (name
, "no_calls", 8) == 0))
5049 p
= input_line_pointer
;
5052 /* Should RP be saved into the stack. */
5053 else if ((strncasecmp (name
, "save_rp", 7) == 0))
5055 p
= input_line_pointer
;
5057 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
5059 /* Likewise for SP. */
5060 else if ((strncasecmp (name
, "save_sp", 7) == 0))
5062 p
= input_line_pointer
;
5064 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
5066 /* Is this an unwindable procedure. If so mark it so
5067 in the unwind descriptor. */
5068 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
5070 p
= input_line_pointer
;
5072 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
5074 /* Is this an interrupt routine. If so mark it in the
5075 unwind descriptor. */
5076 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
5078 p
= input_line_pointer
;
5080 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
5082 /* Is this a millicode routine. "millicode" isn't in my
5083 assembler manual, but my copy is old. The HP assembler
5084 accepts it, and there's a place in the unwind descriptor
5085 to drop the information, so we'll accept it too. */
5086 else if ((strncasecmp (name
, "millicode", 9) == 0))
5088 p
= input_line_pointer
;
5090 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
5094 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
5095 *input_line_pointer
= c
;
5097 if (!is_end_of_statement ())
5098 input_line_pointer
++;
5101 demand_empty_rest_of_line ();
5104 /* Switch into the code subspace. */
5111 current_space
= is_defined_space ("$TEXT$");
5113 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
5116 pa_undefine_label ();
5119 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5120 the .comm pseudo-op has the following symtax:
5122 <label> .comm <length>
5124 where <label> is optional and is a symbol whose address will be the start of
5125 a block of memory <length> bytes long. <length> must be an absolute
5126 expression. <length> bytes will be allocated in the current space
5129 Also note the label may not even be on the same line as the .comm.
5131 This difference in syntax means the colon function will be called
5132 on the symbol before we arrive in pa_comm. colon will set a number
5133 of attributes of the symbol that need to be fixed here. In particular
5134 the value, section pointer, fragment pointer, flags, etc. What
5137 This also makes error detection all but impossible. */
5145 label_symbol_struct
*label_symbol
= pa_get_label ();
5148 symbol
= label_symbol
->lss_label
;
5153 size
= get_absolute_expression ();
5157 S_SET_VALUE (symbol
, size
);
5158 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5159 S_SET_EXTERNAL (symbol
);
5161 /* colon() has already set the frag to the current location in the
5162 current subspace; we need to reset the fragment to the zero address
5163 fragment. We also need to reset the segment pointer. */
5164 symbol_set_frag (symbol
, &zero_address_frag
);
5166 demand_empty_rest_of_line ();
5169 /* Process a .END pseudo-op. */
5175 demand_empty_rest_of_line ();
5178 /* Process a .ENTER pseudo-op. This is not supported. */
5184 /* We must have a valid space and subspace. */
5185 pa_check_current_space_and_subspace ();
5188 as_bad (_("The .ENTER pseudo-op is not supported"));
5189 demand_empty_rest_of_line ();
5192 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5199 /* We must have a valid space and subspace. */
5200 pa_check_current_space_and_subspace ();
5203 if (!within_procedure
)
5204 as_bad (_("Misplaced .entry. Ignored."));
5207 if (!callinfo_found
)
5208 as_bad (_("Missing .callinfo."));
5210 demand_empty_rest_of_line ();
5211 within_entry_exit
= TRUE
;
5214 /* SOM defers building of unwind descriptors until the link phase.
5215 The assembler is responsible for creating an R_ENTRY relocation
5216 to mark the beginning of a region and hold the unwind bits, and
5217 for creating an R_EXIT relocation to mark the end of the region.
5219 FIXME. ELF should be using the same conventions! The problem
5220 is an unwind requires too much relocation space. Hmmm. Maybe
5221 if we split the unwind bits up between the relocations which
5222 denote the entry and exit points. */
5223 if (last_call_info
->start_symbol
!= NULL
)
5225 char *where
= frag_more (0);
5227 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5228 NULL
, (offsetT
) 0, NULL
,
5229 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5230 (int *) &last_call_info
->ci_unwind
.descriptor
);
5235 /* Handle a .EQU pseudo-op. */
5241 label_symbol_struct
*label_symbol
= pa_get_label ();
5246 symbol
= label_symbol
->lss_label
;
5248 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
5250 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
5251 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
5256 as_bad (_(".REG must use a label"));
5258 as_bad (_(".EQU must use a label"));
5261 pa_undefine_label ();
5262 demand_empty_rest_of_line ();
5265 /* Helper function. Does processing for the end of a function. This
5266 usually involves creating some relocations or building special
5267 symbols to mark the end of the function. */
5274 where
= frag_more (0);
5277 /* Mark the end of the function, stuff away the location of the frag
5278 for the end of the function, and finally call pa_build_unwind_subspace
5279 to add an entry in the unwind table. */
5280 hppa_elf_mark_end_of_function ();
5281 pa_build_unwind_subspace (last_call_info
);
5283 /* SOM defers building of unwind descriptors until the link phase.
5284 The assembler is responsible for creating an R_ENTRY relocation
5285 to mark the beginning of a region and hold the unwind bits, and
5286 for creating an R_EXIT relocation to mark the end of the region.
5288 FIXME. ELF should be using the same conventions! The problem
5289 is an unwind requires too much relocation space. Hmmm. Maybe
5290 if we split the unwind bits up between the relocations which
5291 denote the entry and exit points. */
5292 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5294 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
5295 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
5299 /* Process a .EXIT pseudo-op. */
5306 /* We must have a valid space and subspace. */
5307 pa_check_current_space_and_subspace ();
5310 if (!within_procedure
)
5311 as_bad (_(".EXIT must appear within a procedure"));
5314 if (!callinfo_found
)
5315 as_bad (_("Missing .callinfo"));
5318 if (!within_entry_exit
)
5319 as_bad (_("No .ENTRY for this .EXIT"));
5322 within_entry_exit
= FALSE
;
5327 demand_empty_rest_of_line ();
5330 /* Process a .EXPORT directive. This makes functions external
5331 and provides information such as argument relocation entries
5341 name
= input_line_pointer
;
5342 c
= get_symbol_end ();
5343 /* Make sure the given symbol exists. */
5344 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5346 as_bad (_("Cannot define export symbol: %s\n"), name
);
5347 p
= input_line_pointer
;
5349 input_line_pointer
++;
5353 /* OK. Set the external bits and process argument relocations. */
5354 S_SET_EXTERNAL (symbol
);
5355 p
= input_line_pointer
;
5357 if (!is_end_of_statement ())
5359 input_line_pointer
++;
5360 pa_type_args (symbol
, 1);
5364 demand_empty_rest_of_line ();
5367 /* Helper function to process arguments to a .EXPORT pseudo-op. */
5370 pa_type_args (symbolP
, is_export
)
5375 unsigned int temp
, arg_reloc
;
5376 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5377 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5379 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5382 input_line_pointer
+= 8;
5383 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5384 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5385 type
= SYMBOL_TYPE_ABSOLUTE
;
5387 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5389 input_line_pointer
+= 4;
5390 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5391 instead one should be IMPORTing/EXPORTing ENTRY types.
5393 Complain if one tries to EXPORT a CODE type since that's never
5394 done. Both GCC and HP C still try to IMPORT CODE types, so
5395 silently fix them to be ENTRY types. */
5396 if (S_IS_FUNCTION (symbolP
))
5399 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5400 S_GET_NAME (symbolP
));
5402 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5403 type
= SYMBOL_TYPE_ENTRY
;
5407 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5408 type
= SYMBOL_TYPE_CODE
;
5411 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5413 input_line_pointer
+= 4;
5414 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5415 type
= SYMBOL_TYPE_DATA
;
5417 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5419 input_line_pointer
+= 5;
5420 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5421 type
= SYMBOL_TYPE_ENTRY
;
5423 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5425 input_line_pointer
+= 9;
5426 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5427 type
= SYMBOL_TYPE_MILLICODE
;
5429 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5431 input_line_pointer
+= 6;
5432 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5433 type
= SYMBOL_TYPE_PLABEL
;
5435 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5437 input_line_pointer
+= 8;
5438 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5439 type
= SYMBOL_TYPE_PRI_PROG
;
5441 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5443 input_line_pointer
+= 8;
5444 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5445 type
= SYMBOL_TYPE_SEC_PROG
;
5448 /* SOM requires much more information about symbol types
5449 than BFD understands. This is how we get this information
5450 to the SOM BFD backend. */
5451 #ifdef obj_set_symbol_type
5452 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5455 /* Now that the type of the exported symbol has been handled,
5456 handle any argument relocation information. */
5457 while (!is_end_of_statement ())
5459 if (*input_line_pointer
== ',')
5460 input_line_pointer
++;
5461 name
= input_line_pointer
;
5462 c
= get_symbol_end ();
5463 /* Argument sources. */
5464 if ((strncasecmp (name
, "argw", 4) == 0))
5466 p
= input_line_pointer
;
5468 input_line_pointer
++;
5469 temp
= atoi (name
+ 4);
5470 name
= input_line_pointer
;
5471 c
= get_symbol_end ();
5472 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5474 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5476 *input_line_pointer
= c
;
5478 /* The return value. */
5479 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5481 p
= input_line_pointer
;
5483 input_line_pointer
++;
5484 name
= input_line_pointer
;
5485 c
= get_symbol_end ();
5486 arg_reloc
= pa_build_arg_reloc (name
);
5488 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5490 *input_line_pointer
= c
;
5492 /* Privelege level. */
5493 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5495 p
= input_line_pointer
;
5497 input_line_pointer
++;
5498 temp
= atoi (input_line_pointer
);
5500 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5502 c
= get_symbol_end ();
5503 *input_line_pointer
= c
;
5507 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5508 p
= input_line_pointer
;
5511 if (!is_end_of_statement ())
5512 input_line_pointer
++;
5516 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5517 assembly file must either be defined in the assembly file, or
5518 explicitly IMPORTED from another. */
5527 name
= input_line_pointer
;
5528 c
= get_symbol_end ();
5530 symbol
= symbol_find (name
);
5531 /* Ugh. We might be importing a symbol defined earlier in the file,
5532 in which case all the code below will really screw things up
5533 (set the wrong segment, symbol flags & type, etc). */
5534 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5536 symbol
= symbol_find_or_make (name
);
5537 p
= input_line_pointer
;
5540 if (!is_end_of_statement ())
5542 input_line_pointer
++;
5543 pa_type_args (symbol
, 0);
5547 /* Sigh. To be compatable with the HP assembler and to help
5548 poorly written assembly code, we assign a type based on
5549 the the current segment. Note only BSF_FUNCTION really
5550 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5551 if (now_seg
== text_section
)
5552 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5554 /* If the section is undefined, then the symbol is undefined
5555 Since this is an import, leave the section undefined. */
5556 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5561 /* The symbol was already defined. Just eat everything up to
5562 the end of the current statement. */
5563 while (!is_end_of_statement ())
5564 input_line_pointer
++;
5567 demand_empty_rest_of_line ();
5570 /* Handle a .LABEL pseudo-op. */
5578 name
= input_line_pointer
;
5579 c
= get_symbol_end ();
5581 if (strlen (name
) > 0)
5584 p
= input_line_pointer
;
5589 as_warn (_("Missing label name on .LABEL"));
5592 if (!is_end_of_statement ())
5594 as_warn (_("extra .LABEL arguments ignored."));
5595 ignore_rest_of_line ();
5597 demand_empty_rest_of_line ();
5600 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5607 /* We must have a valid space and subspace. */
5608 pa_check_current_space_and_subspace ();
5611 as_bad (_("The .LEAVE pseudo-op is not supported"));
5612 demand_empty_rest_of_line ();
5615 /* Handle a .LEVEL pseudo-op. */
5623 level
= input_line_pointer
;
5624 if (strncmp (level
, "1.0", 3) == 0)
5626 input_line_pointer
+= 3;
5627 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5628 as_warn (_("could not set architecture and machine"));
5630 else if (strncmp (level
, "1.1", 3) == 0)
5632 input_line_pointer
+= 3;
5633 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5634 as_warn (_("could not set architecture and machine"));
5636 else if (strncmp (level
, "2.0w", 4) == 0)
5638 input_line_pointer
+= 4;
5639 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5640 as_warn (_("could not set architecture and machine"));
5642 else if (strncmp (level
, "2.0", 3) == 0)
5644 input_line_pointer
+= 3;
5645 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5646 as_warn (_("could not set architecture and machine"));
5650 as_bad (_("Unrecognized .LEVEL argument\n"));
5651 ignore_rest_of_line ();
5653 demand_empty_rest_of_line ();
5656 /* Handle a .ORIGIN pseudo-op. */
5663 /* We must have a valid space and subspace. */
5664 pa_check_current_space_and_subspace ();
5668 pa_undefine_label ();
5671 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5672 is for static functions. FIXME. Should share more code with .EXPORT. */
5681 name
= input_line_pointer
;
5682 c
= get_symbol_end ();
5684 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5686 as_bad (_("Cannot define static symbol: %s\n"), name
);
5687 p
= input_line_pointer
;
5689 input_line_pointer
++;
5693 S_CLEAR_EXTERNAL (symbol
);
5694 p
= input_line_pointer
;
5696 if (!is_end_of_statement ())
5698 input_line_pointer
++;
5699 pa_type_args (symbol
, 0);
5703 demand_empty_rest_of_line ();
5706 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5707 of a procedure from a syntatical point of view. */
5713 struct call_info
*call_info
;
5716 /* We must have a valid space and subspace. */
5717 pa_check_current_space_and_subspace ();
5720 if (within_procedure
)
5721 as_fatal (_("Nested procedures"));
5723 /* Reset global variables for new procedure. */
5724 callinfo_found
= FALSE
;
5725 within_procedure
= TRUE
;
5727 /* Create another call_info structure. */
5728 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5731 as_fatal (_("Cannot allocate unwind descriptor\n"));
5733 memset (call_info
, 0, sizeof (struct call_info
));
5735 call_info
->ci_next
= NULL
;
5737 if (call_info_root
== NULL
)
5739 call_info_root
= call_info
;
5740 last_call_info
= call_info
;
5744 last_call_info
->ci_next
= call_info
;
5745 last_call_info
= call_info
;
5748 /* set up defaults on call_info structure */
5750 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5751 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5752 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5754 /* If we got a .PROC pseudo-op, we know that the function is defined
5755 locally. Make sure it gets into the symbol table. */
5757 label_symbol_struct
*label_symbol
= pa_get_label ();
5761 if (label_symbol
->lss_label
)
5763 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5764 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5767 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5770 last_call_info
->start_symbol
= NULL
;
5773 demand_empty_rest_of_line ();
5776 /* Process the syntatical end of a procedure. Make sure all the
5777 appropriate pseudo-ops were found within the procedure. */
5785 /* We must have a valid space and subspace. */
5786 pa_check_current_space_and_subspace ();
5789 /* If we are within a procedure definition, make sure we've
5790 defined a label for the procedure; handle case where the
5791 label was defined after the .PROC directive.
5793 Note there's not need to diddle with the segment or fragment
5794 for the label symbol in this case. We have already switched
5795 into the new $CODE$ subspace at this point. */
5796 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5798 label_symbol_struct
*label_symbol
= pa_get_label ();
5802 if (label_symbol
->lss_label
)
5804 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5805 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5808 /* Also handle allocation of a fixup to hold the unwind
5809 information when the label appears after the proc/procend. */
5810 if (within_entry_exit
)
5812 char *where
= frag_more (0);
5814 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5815 NULL
, (offsetT
) 0, NULL
,
5816 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5817 (int *) &last_call_info
->ci_unwind
.descriptor
);
5822 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5825 as_bad (_("Missing function name for .PROC"));
5828 if (!within_procedure
)
5829 as_bad (_("misplaced .procend"));
5831 if (!callinfo_found
)
5832 as_bad (_("Missing .callinfo for this procedure"));
5834 if (within_entry_exit
)
5835 as_bad (_("Missing .EXIT for a .ENTRY"));
5838 /* ELF needs to mark the end of each function so that it can compute
5839 the size of the function (apparently its needed in the symbol table). */
5840 hppa_elf_mark_end_of_function ();
5843 within_procedure
= FALSE
;
5844 demand_empty_rest_of_line ();
5845 pa_undefine_label ();
5848 /* If VALUE is an exact power of two between zero and 2^31, then
5849 return log2 (VALUE). Else return -1. */
5857 while ((1 << shift
) != value
&& shift
< 32)
5868 /* Check to make sure we have a valid space and subspace. */
5871 pa_check_current_space_and_subspace ()
5873 if (current_space
== NULL
)
5874 as_fatal (_("Not in a space.\n"));
5876 if (current_subspace
== NULL
)
5877 as_fatal (_("Not in a subspace.\n"));
5880 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5881 then create a new space entry to hold the information specified
5882 by the parameters to the .SPACE directive. */
5884 static sd_chain_struct
*
5885 pa_parse_space_stmt (space_name
, create_flag
)
5889 char *name
, *ptemp
, c
;
5890 char loadable
, defined
, private, sort
;
5892 asection
*seg
= NULL
;
5893 sd_chain_struct
*space
;
5895 /* load default values */
5901 if (strcmp (space_name
, "$TEXT$") == 0)
5903 seg
= pa_def_spaces
[0].segment
;
5904 defined
= pa_def_spaces
[0].defined
;
5905 private = pa_def_spaces
[0].private;
5906 sort
= pa_def_spaces
[0].sort
;
5907 spnum
= pa_def_spaces
[0].spnum
;
5909 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5911 seg
= pa_def_spaces
[1].segment
;
5912 defined
= pa_def_spaces
[1].defined
;
5913 private = pa_def_spaces
[1].private;
5914 sort
= pa_def_spaces
[1].sort
;
5915 spnum
= pa_def_spaces
[1].spnum
;
5918 if (!is_end_of_statement ())
5920 print_errors
= FALSE
;
5921 ptemp
= input_line_pointer
+ 1;
5922 /* First see if the space was specified as a number rather than
5923 as a name. According to the PA assembly manual the rest of
5924 the line should be ignored. */
5925 temp
= pa_parse_number (&ptemp
, 0);
5929 input_line_pointer
= ptemp
;
5933 while (!is_end_of_statement ())
5935 input_line_pointer
++;
5936 name
= input_line_pointer
;
5937 c
= get_symbol_end ();
5938 if ((strncasecmp (name
, "spnum", 5) == 0))
5940 *input_line_pointer
= c
;
5941 input_line_pointer
++;
5942 spnum
= get_absolute_expression ();
5944 else if ((strncasecmp (name
, "sort", 4) == 0))
5946 *input_line_pointer
= c
;
5947 input_line_pointer
++;
5948 sort
= get_absolute_expression ();
5950 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5952 *input_line_pointer
= c
;
5955 else if ((strncasecmp (name
, "notdefined", 10) == 0))
5957 *input_line_pointer
= c
;
5960 else if ((strncasecmp (name
, "private", 7) == 0))
5962 *input_line_pointer
= c
;
5967 as_bad (_("Invalid .SPACE argument"));
5968 *input_line_pointer
= c
;
5969 if (!is_end_of_statement ())
5970 input_line_pointer
++;
5974 print_errors
= TRUE
;
5977 if (create_flag
&& seg
== NULL
)
5978 seg
= subseg_new (space_name
, 0);
5980 /* If create_flag is nonzero, then create the new space with
5981 the attributes computed above. Else set the values in
5982 an already existing space -- this can only happen for
5983 the first occurence of a built-in space. */
5985 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
5986 private, sort
, seg
, 1);
5989 space
= is_defined_space (space_name
);
5990 SPACE_SPNUM (space
) = spnum
;
5991 SPACE_DEFINED (space
) = defined
& 1;
5992 SPACE_USER_DEFINED (space
) = 1;
5995 #ifdef obj_set_section_attributes
5996 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6002 /* Handle a .SPACE pseudo-op; this switches the current space to the
6003 given space, creating the new space if necessary. */
6009 char *name
, c
, *space_name
, *save_s
;
6011 sd_chain_struct
*sd_chain
;
6013 if (within_procedure
)
6015 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6016 ignore_rest_of_line ();
6020 /* Check for some of the predefined spaces. FIXME: most of the code
6021 below is repeated several times, can we extract the common parts
6022 and place them into a subroutine or something similar? */
6023 /* FIXME Is this (and the next IF stmt) really right?
6024 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6025 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
6027 input_line_pointer
+= 6;
6028 sd_chain
= is_defined_space ("$TEXT$");
6029 if (sd_chain
== NULL
)
6030 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
6031 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6032 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
6034 current_space
= sd_chain
;
6035 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
6037 = pa_subsegment_to_subspace (text_section
,
6038 sd_chain
->sd_last_subseg
);
6039 demand_empty_rest_of_line ();
6042 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
6044 input_line_pointer
+= 9;
6045 sd_chain
= is_defined_space ("$PRIVATE$");
6046 if (sd_chain
== NULL
)
6047 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
6048 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6049 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
6051 current_space
= sd_chain
;
6052 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
6054 = pa_subsegment_to_subspace (data_section
,
6055 sd_chain
->sd_last_subseg
);
6056 demand_empty_rest_of_line ();
6059 if (!strncasecmp (input_line_pointer
,
6060 GDB_DEBUG_SPACE_NAME
,
6061 strlen (GDB_DEBUG_SPACE_NAME
)))
6063 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
6064 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
6065 if (sd_chain
== NULL
)
6066 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
6067 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6068 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
6070 current_space
= sd_chain
;
6073 asection
*gdb_section
6074 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
6076 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
6078 = pa_subsegment_to_subspace (gdb_section
,
6079 sd_chain
->sd_last_subseg
);
6081 demand_empty_rest_of_line ();
6085 /* It could be a space specified by number. */
6087 save_s
= input_line_pointer
;
6088 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
6090 if ((sd_chain
= pa_find_space_by_number (temp
)))
6092 current_space
= sd_chain
;
6094 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6096 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6097 sd_chain
->sd_last_subseg
);
6098 demand_empty_rest_of_line ();
6103 /* Not a number, attempt to create a new space. */
6105 input_line_pointer
= save_s
;
6106 name
= input_line_pointer
;
6107 c
= get_symbol_end ();
6108 space_name
= xmalloc (strlen (name
) + 1);
6109 strcpy (space_name
, name
);
6110 *input_line_pointer
= c
;
6112 sd_chain
= pa_parse_space_stmt (space_name
, 1);
6113 current_space
= sd_chain
;
6115 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6116 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6117 sd_chain
->sd_last_subseg
);
6118 demand_empty_rest_of_line ();
6122 /* Switch to a new space. (I think). FIXME. */
6131 sd_chain_struct
*space
;
6133 name
= input_line_pointer
;
6134 c
= get_symbol_end ();
6135 space
= is_defined_space (name
);
6139 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
6142 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
6144 *input_line_pointer
= c
;
6145 demand_empty_rest_of_line ();
6148 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6149 given subspace, creating the new subspace if necessary.
6151 FIXME. Should mirror pa_space more closely, in particular how
6152 they're broken up into subroutines. */
6155 pa_subspace (create_new
)
6158 char *name
, *ss_name
, c
;
6159 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
6160 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
6161 sd_chain_struct
*space
;
6162 ssd_chain_struct
*ssd
;
6165 if (current_space
== NULL
)
6166 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6168 if (within_procedure
)
6170 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6171 ignore_rest_of_line ();
6175 name
= input_line_pointer
;
6176 c
= get_symbol_end ();
6177 ss_name
= xmalloc (strlen (name
) + 1);
6178 strcpy (ss_name
, name
);
6179 *input_line_pointer
= c
;
6181 /* Load default values. */
6193 space
= current_space
;
6197 ssd
= is_defined_subspace (ss_name
);
6198 /* Allow user to override the builtin attributes of subspaces. But
6199 only allow the attributes to be changed once! */
6200 if (ssd
&& SUBSPACE_DEFINED (ssd
))
6202 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
6203 current_subspace
= ssd
;
6204 if (!is_end_of_statement ())
6205 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6206 demand_empty_rest_of_line ();
6211 /* A new subspace. Load default values if it matches one of
6212 the builtin subspaces. */
6214 while (pa_def_subspaces
[i
].name
)
6216 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
6218 loadable
= pa_def_subspaces
[i
].loadable
;
6219 common
= pa_def_subspaces
[i
].common
;
6220 dup_common
= pa_def_subspaces
[i
].dup_common
;
6221 code_only
= pa_def_subspaces
[i
].code_only
;
6222 zero
= pa_def_subspaces
[i
].zero
;
6223 space_index
= pa_def_subspaces
[i
].space_index
;
6224 alignment
= pa_def_subspaces
[i
].alignment
;
6225 quadrant
= pa_def_subspaces
[i
].quadrant
;
6226 access
= pa_def_subspaces
[i
].access
;
6227 sort
= pa_def_subspaces
[i
].sort
;
6234 /* We should be working with a new subspace now. Fill in
6235 any information as specified by the user. */
6236 if (!is_end_of_statement ())
6238 input_line_pointer
++;
6239 while (!is_end_of_statement ())
6241 name
= input_line_pointer
;
6242 c
= get_symbol_end ();
6243 if ((strncasecmp (name
, "quad", 4) == 0))
6245 *input_line_pointer
= c
;
6246 input_line_pointer
++;
6247 quadrant
= get_absolute_expression ();
6249 else if ((strncasecmp (name
, "align", 5) == 0))
6251 *input_line_pointer
= c
;
6252 input_line_pointer
++;
6253 alignment
= get_absolute_expression ();
6254 if (log2 (alignment
) == -1)
6256 as_bad (_("Alignment must be a power of 2"));
6260 else if ((strncasecmp (name
, "access", 6) == 0))
6262 *input_line_pointer
= c
;
6263 input_line_pointer
++;
6264 access
= get_absolute_expression ();
6266 else if ((strncasecmp (name
, "sort", 4) == 0))
6268 *input_line_pointer
= c
;
6269 input_line_pointer
++;
6270 sort
= get_absolute_expression ();
6272 else if ((strncasecmp (name
, "code_only", 9) == 0))
6274 *input_line_pointer
= c
;
6277 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6279 *input_line_pointer
= c
;
6282 else if ((strncasecmp (name
, "common", 6) == 0))
6284 *input_line_pointer
= c
;
6287 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
6289 *input_line_pointer
= c
;
6292 else if ((strncasecmp (name
, "zero", 4) == 0))
6294 *input_line_pointer
= c
;
6297 else if ((strncasecmp (name
, "first", 5) == 0))
6298 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
6300 as_bad (_("Invalid .SUBSPACE argument"));
6301 if (!is_end_of_statement ())
6302 input_line_pointer
++;
6306 /* Compute a reasonable set of BFD flags based on the information
6307 in the .subspace directive. */
6308 applicable
= bfd_applicable_section_flags (stdoutput
);
6311 flags
|= (SEC_ALLOC
| SEC_LOAD
);
6314 if (common
|| dup_common
)
6315 flags
|= SEC_IS_COMMON
;
6317 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
6319 /* This is a zero-filled subspace (eg BSS). */
6321 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
6323 applicable
&= flags
;
6325 /* If this is an existing subspace, then we want to use the
6326 segment already associated with the subspace.
6328 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6329 lots of sections. It might be a problem in the PA ELF
6330 code, I do not know yet. For now avoid creating anything
6331 but the "standard" sections for ELF. */
6333 section
= subseg_force_new (ss_name
, 0);
6335 section
= ssd
->ssd_seg
;
6337 section
= subseg_new (ss_name
, 0);
6340 seg_info (section
)->bss
= 1;
6342 /* Now set the flags. */
6343 bfd_set_section_flags (stdoutput
, section
, applicable
);
6345 /* Record any alignment request for this section. */
6346 record_alignment (section
, log2 (alignment
));
6348 /* Set the starting offset for this section. */
6349 bfd_set_section_vma (stdoutput
, section
,
6350 pa_subspace_start (space
, quadrant
));
6352 /* Now that all the flags are set, update an existing subspace,
6353 or create a new one. */
6356 current_subspace
= update_subspace (space
, ss_name
, loadable
,
6357 code_only
, common
, dup_common
,
6358 sort
, zero
, access
, space_index
,
6359 alignment
, quadrant
,
6362 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
6364 dup_common
, zero
, sort
,
6365 access
, space_index
,
6366 alignment
, quadrant
, section
);
6368 demand_empty_rest_of_line ();
6369 current_subspace
->ssd_seg
= section
;
6370 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6372 SUBSPACE_DEFINED (current_subspace
) = 1;
6376 /* Create default space and subspace dictionaries. */
6383 space_dict_root
= NULL
;
6384 space_dict_last
= NULL
;
6387 while (pa_def_spaces
[i
].name
)
6391 /* Pick the right name to use for the new section. */
6392 name
= pa_def_spaces
[i
].name
;
6394 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6395 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6396 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6397 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6398 pa_def_spaces
[i
].segment
, 0);
6403 while (pa_def_subspaces
[i
].name
)
6406 int applicable
, subsegment
;
6407 asection
*segment
= NULL
;
6408 sd_chain_struct
*space
;
6410 /* Pick the right name for the new section and pick the right
6411 subsegment number. */
6412 name
= pa_def_subspaces
[i
].name
;
6415 /* Create the new section. */
6416 segment
= subseg_new (name
, subsegment
);
6419 /* For SOM we want to replace the standard .text, .data, and .bss
6420 sections with our own. We also want to set BFD flags for
6421 all the built-in subspaces. */
6422 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6424 text_section
= segment
;
6425 applicable
= bfd_applicable_section_flags (stdoutput
);
6426 bfd_set_section_flags (stdoutput
, segment
,
6427 applicable
& (SEC_ALLOC
| SEC_LOAD
6428 | SEC_RELOC
| SEC_CODE
6430 | SEC_HAS_CONTENTS
));
6432 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6434 data_section
= segment
;
6435 applicable
= bfd_applicable_section_flags (stdoutput
);
6436 bfd_set_section_flags (stdoutput
, segment
,
6437 applicable
& (SEC_ALLOC
| SEC_LOAD
6439 | SEC_HAS_CONTENTS
));
6443 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6445 bss_section
= segment
;
6446 applicable
= bfd_applicable_section_flags (stdoutput
);
6447 bfd_set_section_flags (stdoutput
, segment
,
6448 applicable
& SEC_ALLOC
);
6450 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6452 applicable
= bfd_applicable_section_flags (stdoutput
);
6453 bfd_set_section_flags (stdoutput
, segment
,
6454 applicable
& (SEC_ALLOC
| SEC_LOAD
6457 | SEC_HAS_CONTENTS
));
6459 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6461 applicable
= bfd_applicable_section_flags (stdoutput
);
6462 bfd_set_section_flags (stdoutput
, segment
,
6463 applicable
& (SEC_ALLOC
| SEC_LOAD
6466 | SEC_HAS_CONTENTS
));
6468 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6470 applicable
= bfd_applicable_section_flags (stdoutput
);
6471 bfd_set_section_flags (stdoutput
, segment
,
6472 applicable
& (SEC_ALLOC
| SEC_LOAD
6475 | SEC_HAS_CONTENTS
));
6478 /* Find the space associated with this subspace. */
6479 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6480 def_space_index
].segment
);
6483 as_fatal (_("Internal error: Unable to find containing space for %s."),
6484 pa_def_subspaces
[i
].name
);
6487 create_new_subspace (space
, name
,
6488 pa_def_subspaces
[i
].loadable
,
6489 pa_def_subspaces
[i
].code_only
,
6490 pa_def_subspaces
[i
].common
,
6491 pa_def_subspaces
[i
].dup_common
,
6492 pa_def_subspaces
[i
].zero
,
6493 pa_def_subspaces
[i
].sort
,
6494 pa_def_subspaces
[i
].access
,
6495 pa_def_subspaces
[i
].space_index
,
6496 pa_def_subspaces
[i
].alignment
,
6497 pa_def_subspaces
[i
].quadrant
,
6505 /* Create a new space NAME, with the appropriate flags as defined
6506 by the given parameters. */
6508 static sd_chain_struct
*
6509 create_new_space (name
, spnum
, loadable
, defined
, private,
6510 sort
, seg
, user_defined
)
6520 sd_chain_struct
*chain_entry
;
6522 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6524 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6527 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6528 strcpy (SPACE_NAME (chain_entry
), name
);
6529 SPACE_DEFINED (chain_entry
) = defined
;
6530 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6531 SPACE_SPNUM (chain_entry
) = spnum
;
6533 chain_entry
->sd_seg
= seg
;
6534 chain_entry
->sd_last_subseg
= -1;
6535 chain_entry
->sd_subspaces
= NULL
;
6536 chain_entry
->sd_next
= NULL
;
6538 /* Find spot for the new space based on its sort key. */
6539 if (!space_dict_last
)
6540 space_dict_last
= chain_entry
;
6542 if (space_dict_root
== NULL
)
6543 space_dict_root
= chain_entry
;
6546 sd_chain_struct
*chain_pointer
;
6547 sd_chain_struct
*prev_chain_pointer
;
6549 chain_pointer
= space_dict_root
;
6550 prev_chain_pointer
= NULL
;
6552 while (chain_pointer
)
6554 prev_chain_pointer
= chain_pointer
;
6555 chain_pointer
= chain_pointer
->sd_next
;
6558 /* At this point we've found the correct place to add the new
6559 entry. So add it and update the linked lists as appropriate. */
6560 if (prev_chain_pointer
)
6562 chain_entry
->sd_next
= chain_pointer
;
6563 prev_chain_pointer
->sd_next
= chain_entry
;
6567 space_dict_root
= chain_entry
;
6568 chain_entry
->sd_next
= chain_pointer
;
6571 if (chain_entry
->sd_next
== NULL
)
6572 space_dict_last
= chain_entry
;
6575 /* This is here to catch predefined spaces which do not get
6576 modified by the user's input. Another call is found at
6577 the bottom of pa_parse_space_stmt to handle cases where
6578 the user modifies a predefined space. */
6579 #ifdef obj_set_section_attributes
6580 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6586 /* Create a new subspace NAME, with the appropriate flags as defined
6587 by the given parameters.
6589 Add the new subspace to the subspace dictionary chain in numerical
6590 order as defined by the SORT entries. */
6592 static ssd_chain_struct
*
6593 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6594 dup_common
, is_zero
, sort
, access
, space_index
,
6595 alignment
, quadrant
, seg
)
6596 sd_chain_struct
*space
;
6598 int loadable
, code_only
, common
, dup_common
, is_zero
;
6606 ssd_chain_struct
*chain_entry
;
6608 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6610 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6612 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6613 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6615 /* Initialize subspace_defined. When we hit a .subspace directive
6616 we'll set it to 1 which "locks-in" the subspace attributes. */
6617 SUBSPACE_DEFINED (chain_entry
) = 0;
6619 chain_entry
->ssd_subseg
= 0;
6620 chain_entry
->ssd_seg
= seg
;
6621 chain_entry
->ssd_next
= NULL
;
6623 /* Find spot for the new subspace based on its sort key. */
6624 if (space
->sd_subspaces
== NULL
)
6625 space
->sd_subspaces
= chain_entry
;
6628 ssd_chain_struct
*chain_pointer
;
6629 ssd_chain_struct
*prev_chain_pointer
;
6631 chain_pointer
= space
->sd_subspaces
;
6632 prev_chain_pointer
= NULL
;
6634 while (chain_pointer
)
6636 prev_chain_pointer
= chain_pointer
;
6637 chain_pointer
= chain_pointer
->ssd_next
;
6640 /* Now we have somewhere to put the new entry. Insert it and update
6642 if (prev_chain_pointer
)
6644 chain_entry
->ssd_next
= chain_pointer
;
6645 prev_chain_pointer
->ssd_next
= chain_entry
;
6649 space
->sd_subspaces
= chain_entry
;
6650 chain_entry
->ssd_next
= chain_pointer
;
6654 #ifdef obj_set_subsection_attributes
6655 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6662 /* Update the information for the given subspace based upon the
6663 various arguments. Return the modified subspace chain entry. */
6665 static ssd_chain_struct
*
6666 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6667 zero
, access
, space_index
, alignment
, quadrant
, section
)
6668 sd_chain_struct
*space
;
6682 ssd_chain_struct
*chain_entry
;
6684 chain_entry
= is_defined_subspace (name
);
6686 #ifdef obj_set_subsection_attributes
6687 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6694 /* Return the space chain entry for the space with the name NAME or
6695 NULL if no such space exists. */
6697 static sd_chain_struct
*
6698 is_defined_space (name
)
6701 sd_chain_struct
*chain_pointer
;
6703 for (chain_pointer
= space_dict_root
;
6705 chain_pointer
= chain_pointer
->sd_next
)
6707 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6708 return chain_pointer
;
6711 /* No mapping from segment to space was found. Return NULL. */
6715 /* Find and return the space associated with the given seg. If no mapping
6716 from the given seg to a space is found, then return NULL.
6718 Unlike subspaces, the number of spaces is not expected to grow much,
6719 so a linear exhaustive search is OK here. */
6721 static sd_chain_struct
*
6722 pa_segment_to_space (seg
)
6725 sd_chain_struct
*space_chain
;
6727 /* Walk through each space looking for the correct mapping. */
6728 for (space_chain
= space_dict_root
;
6730 space_chain
= space_chain
->sd_next
)
6732 if (space_chain
->sd_seg
== seg
)
6736 /* Mapping was not found. Return NULL. */
6740 /* Return the space chain entry for the subspace with the name NAME or
6741 NULL if no such subspace exists.
6743 Uses a linear search through all the spaces and subspaces, this may
6744 not be appropriate if we ever being placing each function in its
6747 static ssd_chain_struct
*
6748 is_defined_subspace (name
)
6751 sd_chain_struct
*space_chain
;
6752 ssd_chain_struct
*subspace_chain
;
6754 /* Walk through each space. */
6755 for (space_chain
= space_dict_root
;
6757 space_chain
= space_chain
->sd_next
)
6759 /* Walk through each subspace looking for a name which matches. */
6760 for (subspace_chain
= space_chain
->sd_subspaces
;
6762 subspace_chain
= subspace_chain
->ssd_next
)
6763 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6764 return subspace_chain
;
6767 /* Subspace wasn't found. Return NULL. */
6771 /* Find and return the subspace associated with the given seg. If no
6772 mapping from the given seg to a subspace is found, then return NULL.
6774 If we ever put each procedure/function within its own subspace
6775 (to make life easier on the compiler and linker), then this will have
6776 to become more efficient. */
6778 static ssd_chain_struct
*
6779 pa_subsegment_to_subspace (seg
, subseg
)
6783 sd_chain_struct
*space_chain
;
6784 ssd_chain_struct
*subspace_chain
;
6786 /* Walk through each space. */
6787 for (space_chain
= space_dict_root
;
6789 space_chain
= space_chain
->sd_next
)
6791 if (space_chain
->sd_seg
== seg
)
6793 /* Walk through each subspace within each space looking for
6794 the correct mapping. */
6795 for (subspace_chain
= space_chain
->sd_subspaces
;
6797 subspace_chain
= subspace_chain
->ssd_next
)
6798 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6799 return subspace_chain
;
6803 /* No mapping from subsegment to subspace found. Return NULL. */
6807 /* Given a number, try and find a space with the name number.
6809 Return a pointer to a space dictionary chain entry for the space
6810 that was found or NULL on failure. */
6812 static sd_chain_struct
*
6813 pa_find_space_by_number (number
)
6816 sd_chain_struct
*space_chain
;
6818 for (space_chain
= space_dict_root
;
6820 space_chain
= space_chain
->sd_next
)
6822 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6826 /* No appropriate space found. Return NULL. */
6830 /* Return the starting address for the given subspace. If the starting
6831 address is unknown then return zero. */
6834 pa_subspace_start (space
, quadrant
)
6835 sd_chain_struct
*space
;
6838 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6839 is not correct for the PA OSF1 port. */
6840 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6842 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6849 /* FIXME. Needs documentation. */
6851 pa_next_subseg (space
)
6852 sd_chain_struct
*space
;
6855 space
->sd_last_subseg
++;
6856 return space
->sd_last_subseg
;
6860 /* Helper function for pa_stringer. Used to find the end of
6867 unsigned int c
= *s
& CHAR_MASK
;
6870 /* We must have a valid space and subspace. */
6871 pa_check_current_space_and_subspace ();
6885 /* Handle a .STRING type pseudo-op. */
6888 pa_stringer (append_zero
)
6891 char *s
, num_buf
[4];
6895 /* Preprocess the string to handle PA-specific escape sequences.
6896 For example, \xDD where DD is a hexidecimal number should be
6897 changed to \OOO where OOO is an octal number. */
6899 /* Skip the opening quote. */
6900 s
= input_line_pointer
+ 1;
6902 while (is_a_char (c
= pa_stringer_aux (s
++)))
6909 /* Handle \x<num>. */
6912 unsigned int number
;
6917 /* Get pas the 'x'. */
6919 for (num_digit
= 0, number
= 0, dg
= *s
;
6921 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6922 || (dg
>= 'A' && dg
<= 'F'));
6926 number
= number
* 16 + dg
- '0';
6927 else if (dg
>= 'a' && dg
<= 'f')
6928 number
= number
* 16 + dg
- 'a' + 10;
6930 number
= number
* 16 + dg
- 'A' + 10;
6940 sprintf (num_buf
, "%02o", number
);
6943 sprintf (num_buf
, "%03o", number
);
6946 for (i
= 0; i
<= num_digit
; i
++)
6947 s_start
[i
] = num_buf
[i
];
6951 /* This might be a "\"", skip over the escaped char. */
6958 stringer (append_zero
);
6959 pa_undefine_label ();
6962 /* Handle a .VERSION pseudo-op. */
6969 pa_undefine_label ();
6974 /* Handle a .COMPILER pseudo-op. */
6977 pa_compiler (unused
)
6980 obj_som_compiler (0);
6981 pa_undefine_label ();
6986 /* Handle a .COPYRIGHT pseudo-op. */
6989 pa_copyright (unused
)
6993 pa_undefine_label ();
6996 /* Just like a normal cons, but when finished we have to undefine
6997 the latest space label. */
7004 pa_undefine_label ();
7007 /* Switch to the data space. As usual delete our label. */
7014 current_space
= is_defined_space ("$PRIVATE$");
7016 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7019 pa_undefine_label ();
7022 /* Like float_cons, but we need to undefine our label. */
7025 pa_float_cons (float_type
)
7028 float_cons (float_type
);
7029 pa_undefine_label ();
7032 /* Like s_fill, but delete our label when finished. */
7039 /* We must have a valid space and subspace. */
7040 pa_check_current_space_and_subspace ();
7044 pa_undefine_label ();
7047 /* Like lcomm, but delete our label when finished. */
7050 pa_lcomm (needs_align
)
7054 /* We must have a valid space and subspace. */
7055 pa_check_current_space_and_subspace ();
7058 s_lcomm (needs_align
);
7059 pa_undefine_label ();
7062 /* Like lsym, but delete our label when finished. */
7069 /* We must have a valid space and subspace. */
7070 pa_check_current_space_and_subspace ();
7074 pa_undefine_label ();
7077 /* Switch to the text space. Like s_text, but delete our
7078 label when finished. */
7084 current_space
= is_defined_space ("$TEXT$");
7086 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7090 pa_undefine_label ();
7093 /* On the PA relocations which involve function symbols must not be
7094 adjusted. This so that the linker can know when/how to create argument
7095 relocation stubs for indirect calls and calls to static functions.
7097 "T" field selectors create DLT relative fixups for accessing
7098 globals and statics in PIC code; each DLT relative fixup creates
7099 an entry in the DLT table. The entries contain the address of
7100 the final target (eg accessing "foo" would create a DLT entry
7101 with the address of "foo").
7103 Unfortunately, the HP linker doesn't take into account any addend
7104 when generating the DLT; so accessing $LIT$+8 puts the address of
7105 $LIT$ into the DLT rather than the address of $LIT$+8.
7107 The end result is we can't perform relocation symbol reductions for
7108 any fixup which creates entries in the DLT (eg they use "T" field
7111 Reject reductions involving symbols with external scope; such
7112 reductions make life a living hell for object file editors.
7114 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7115 the code space. The SOM BFD backend doesn't know how to pull the
7116 right bits out of an instruction. */
7119 hppa_fix_adjustable (fixp
)
7122 struct hppa_fix_struct
*hppa_fix
;
7124 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7127 /* Reject reductions of symbols in 32bit relocs. */
7128 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
7131 /* Reject reductions of symbols in sym1-sym2 expressions when
7132 the fixup will occur in a CODE subspace.
7134 XXX FIXME: Long term we probably want to reject all of these;
7135 for example reducing in the debug section would lose if we ever
7136 supported using the optimizing hp linker. */
7139 && (hppa_fix
->segment
->flags
& SEC_CODE
))
7141 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
7142 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
7146 /* We can't adjust any relocs that use LR% and RR% field selectors.
7147 That confuses the HP linker. */
7148 if (hppa_fix
->fx_r_field
== e_lrsel
7149 || hppa_fix
->fx_r_field
== e_rrsel
7150 || hppa_fix
->fx_r_field
== e_nlrsel
)
7154 /* Reject reductions of symbols in DLT relative relocs,
7155 relocations with plabels. */
7156 if (hppa_fix
->fx_r_field
== e_tsel
7157 || hppa_fix
->fx_r_field
== e_ltsel
7158 || hppa_fix
->fx_r_field
== e_rtsel
7159 || hppa_fix
->fx_r_field
== e_psel
7160 || hppa_fix
->fx_r_field
== e_rpsel
7161 || hppa_fix
->fx_r_field
== e_lpsel
)
7164 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
7167 /* Reject absolute calls (jumps). */
7168 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
7171 /* Reject reductions of function symbols. */
7172 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
7178 /* Return nonzero if the fixup in FIXP will require a relocation,
7179 even it if appears that the fixup could be completely handled
7183 hppa_force_relocation (fixp
)
7186 struct hppa_fix_struct
*hppa_fixp
;
7189 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7191 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
7192 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
7193 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
7194 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
7195 || fixp
->fx_r_type
== R_HPPA_END_TRY
7196 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
7197 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
7201 #define arg_reloc_stub_needed(CALLER, CALLEE) \
7202 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7205 /* It is necessary to force PC-relative calls/jumps to have a relocation
7206 entry if they're going to need either a argument relocation or long
7207 call stub. FIXME. Can't we need the same for absolute calls? */
7208 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
7209 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
7210 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
7211 hppa_fixp
->fx_arg_reloc
)))
7214 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
7215 - md_pcrel_from (fixp
));
7216 /* Now check and see if we're going to need a long-branch stub. */
7217 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
7218 && (distance
> 262143 || distance
< -262144))
7221 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
7223 #undef arg_reloc_stub_needed
7225 /* No need (yet) to force another relocations to be emitted. */
7229 /* Now for some ELF specific code. FIXME. */
7231 /* Mark the end of a function so that it's possible to compute
7232 the size of the function in hppa_elf_final_processing. */
7235 hppa_elf_mark_end_of_function ()
7237 /* ELF does not have EXIT relocations. All we do is create a
7238 temporary symbol marking the end of the function. */
7239 char *name
= (char *)
7240 xmalloc (strlen ("L$\001end_") +
7241 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
7247 strcpy (name
, "L$\001end_");
7248 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
7250 /* If we have a .exit followed by a .procend, then the
7251 symbol will have already been defined. */
7252 symbolP
= symbol_find (name
);
7255 /* The symbol has already been defined! This can
7256 happen if we have a .exit followed by a .procend.
7258 This is *not* an error. All we want to do is free
7259 the memory we just allocated for the name and continue. */
7264 /* symbol value should be the offset of the
7265 last instruction of the function */
7266 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
7270 S_CLEAR_EXTERNAL (symbolP
);
7271 symbol_table_insert (symbolP
);
7275 last_call_info
->end_symbol
= symbolP
;
7277 as_bad (_("Symbol '%s' could not be created."), name
);
7281 as_bad (_("No memory for symbol name."));
7285 /* For ELF, this function serves one purpose: to setup the st_size
7286 field of STT_FUNC symbols. To do this, we need to scan the
7287 call_info structure list, determining st_size in by taking the
7288 difference in the address of the beginning/end marker symbols. */
7291 elf_hppa_final_processing ()
7293 struct call_info
*call_info_pointer
;
7295 for (call_info_pointer
= call_info_root
;
7297 call_info_pointer
= call_info_pointer
->ci_next
)
7299 elf_symbol_type
*esym
7300 = ((elf_symbol_type
*)
7301 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
7302 esym
->internal_elf_sym
.st_size
=
7303 S_GET_VALUE (call_info_pointer
->end_symbol
)
7304 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;