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. */
1603 num
= pa_parse_number (&s
, 0);
1604 CHECK_FIELD (num
, 31, 0, 0);
1605 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1607 /* Handle a 5 bit register field at 10 and 15. */
1609 num
= pa_parse_number (&s
, 0);
1610 CHECK_FIELD (num
, 31, 0, 0);
1611 opcode
|= num
<< 16;
1612 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1614 /* Handle a 5 bit field length at 31. */
1616 num
= pa_get_absolute_expression (&the_insn
, &s
);
1618 CHECK_FIELD (num
, 32, 1, 0);
1619 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
1621 /* Handle a 5 bit immediate at 15. */
1623 num
= pa_get_absolute_expression (&the_insn
, &s
);
1625 CHECK_FIELD (num
, 15, -16, 0);
1626 low_sign_unext (num
, 5, &num
);
1627 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1629 /* Handle a 5 bit immediate at 31. */
1631 num
= pa_get_absolute_expression (&the_insn
, &s
);
1633 CHECK_FIELD (num
, 15, -16, 0)
1634 low_sign_unext (num
, 5, &num
);
1635 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1637 /* Handle an unsigned 5 bit immediate at 31. */
1639 num
= pa_get_absolute_expression (&the_insn
, &s
);
1641 CHECK_FIELD (num
, 31, 0, 0);
1642 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1644 /* Handle an unsigned 5 bit immediate at 15. */
1646 num
= pa_get_absolute_expression (&the_insn
, &s
);
1648 CHECK_FIELD (num
, 31, 0, 0);
1649 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1651 /* Handle an unsigned 10 bit immediate at 15. */
1653 num
= pa_get_absolute_expression (&the_insn
, &s
);
1655 CHECK_FIELD (num
, 1023, 0, 0);
1656 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1658 /* Handle a 2 bit space identifier at 17. */
1660 num
= pa_parse_number (&s
, 0);
1661 CHECK_FIELD (num
, 3, 0, 1);
1662 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
1664 /* Handle a 3 bit space identifier at 18. */
1666 num
= pa_parse_number (&s
, 0);
1667 CHECK_FIELD (num
, 7, 0, 1);
1668 dis_assemble_3 (num
, &num
);
1669 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
1671 /* Handle all completers. */
1676 /* Handle a completer for an indexing load or store. */
1682 while (*s
== ',' && i
< 2)
1685 if (strncasecmp (s
, "sm", 2) == 0)
1692 else if (strncasecmp (s
, "m", 1) == 0)
1694 else if (strncasecmp (s
, "s", 1) == 0)
1697 as_bad (_("Invalid Indexed Load Completer."));
1702 as_bad (_("Invalid Indexed Load Completer Syntax."));
1704 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
1707 /* Handle a short load/store completer. */
1715 if (strncasecmp (s
, "ma", 2) == 0)
1720 else if (strncasecmp (s
, "mb", 2) == 0)
1726 as_bad (_("Invalid Short Load/Store Completer."));
1731 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1734 /* Handle a stbys completer. */
1740 while (*s
== ',' && i
< 2)
1743 if (strncasecmp (s
, "m", 1) == 0)
1745 else if (strncasecmp (s
, "b", 1) == 0)
1747 else if (strncasecmp (s
, "e", 1) == 0)
1750 as_bad (_("Invalid Store Bytes Short Completer"));
1755 as_bad (_("Invalid Store Bytes Short Completer"));
1757 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1760 /* Handle a local processor completer. */
1762 if (strncasecmp (s
, ",l", 2) != 0)
1767 /* Handle a PROBE read/write completer. */
1770 if (!strncasecmp (s
, ",w", 2))
1775 else if (!strncasecmp (s
, ",r", 2))
1781 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1783 /* Handle MFCTL wide completer. */
1785 if (strncasecmp (s
, ",w", 2) != 0)
1790 /* Handle an RFI restore completer. */
1793 if (!strncasecmp (s
, ",r", 2))
1799 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1801 /* Handle a system control completer. */
1803 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
1811 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1813 /* Handle intermediate/final completer for DCOR. */
1816 if (!strncasecmp (s
, ",i", 2))
1822 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1824 /* Handle zero/sign extension completer. */
1827 if (!strncasecmp (s
, ",z", 2))
1833 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1835 /* Handle add completer. */
1838 if (!strncasecmp (s
, ",l", 2))
1843 else if (!strncasecmp (s
, ",tsv", 4))
1849 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1851 /* Handle 64 bit carry for ADD. */
1854 if (!strncasecmp (s
, ",dc,tsv", 7) ||
1855 !strncasecmp (s
, ",tsv,dc", 7))
1860 else if (!strncasecmp (s
, ",dc", 3))
1868 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1870 /* Handle 32 bit carry for ADD. */
1873 if (!strncasecmp (s
, ",c,tsv", 6) ||
1874 !strncasecmp (s
, ",tsv,c", 6))
1879 else if (!strncasecmp (s
, ",c", 2))
1887 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1889 /* Handle trap on signed overflow. */
1892 if (!strncasecmp (s
, ",tsv", 4))
1898 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1900 /* Handle trap on condition and overflow. */
1903 if (!strncasecmp (s
, ",tc,tsv", 7) ||
1904 !strncasecmp (s
, ",tsv,tc", 7))
1909 else if (!strncasecmp (s
, ",tc", 3))
1917 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1919 /* Handle 64 bit borrow for SUB. */
1922 if (!strncasecmp (s
, ",db,tsv", 7) ||
1923 !strncasecmp (s
, ",tsv,db", 7))
1928 else if (!strncasecmp (s
, ",db", 3))
1936 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1938 /* Handle 32 bit borrow for SUB. */
1941 if (!strncasecmp (s
, ",b,tsv", 6) ||
1942 !strncasecmp (s
, ",tsv,b", 6))
1947 else if (!strncasecmp (s
, ",b", 2))
1955 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1957 /* Handle trap condition completer for UADDCM. */
1960 if (!strncasecmp (s
, ",tc", 3))
1966 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1968 /* Handle signed/unsigned at 21. */
1972 if (strncasecmp (s
, ",s", 2) == 0)
1977 else if (strncasecmp (s
, ",u", 2) == 0)
1983 INSERT_FIELD_AND_CONTINUE (opcode
, sign
, 10);
1986 /* Handle left/right combination at 17:18. */
1996 as_bad(_("Invalid left/right combination completer"));
1999 INSERT_FIELD_AND_CONTINUE (opcode
, lr
, 13);
2002 as_bad(_("Invalid left/right combination completer"));
2005 /* Handle saturation at 24:25. */
2009 if (strncasecmp (s
, ",ss", 3) == 0)
2014 else if (strncasecmp (s
, ",us", 3) == 0)
2020 INSERT_FIELD_AND_CONTINUE (opcode
, sat
, 6);
2023 /* Handle permutation completer. */
2027 int permloc
[4] = {13,10,8,6};
2047 as_bad(_("Invalid permutation completer"));
2049 opcode
|= perm
<< permloc
[i
];
2054 as_bad(_("Invalid permutation completer"));
2062 /* Handle all conditions. */
2068 /* Handle FP compare conditions. */
2070 cond
= pa_parse_fp_cmp_cond (&s
);
2071 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
2073 /* Handle an add condition. */
2082 /* 64 bit conditions. */
2095 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2099 if (strcmp (name
, "=") == 0)
2101 else if (strcmp (name
, "<") == 0)
2103 else if (strcmp (name
, "<=") == 0)
2105 else if (strcasecmp (name
, "nuv") == 0)
2107 else if (strcasecmp (name
, "znv") == 0)
2109 else if (strcasecmp (name
, "sv") == 0)
2111 else if (strcasecmp (name
, "od") == 0)
2113 else if (strcasecmp (name
, "tr") == 0)
2118 else if (strcmp (name
, "<>") == 0)
2123 else if (strcmp (name
, ">=") == 0)
2128 else if (strcmp (name
, ">") == 0)
2133 else if (strcasecmp (name
, "uv") == 0)
2138 else if (strcasecmp (name
, "vnz") == 0)
2143 else if (strcasecmp (name
, "nsv") == 0)
2148 else if (strcasecmp (name
, "ev") == 0)
2153 /* ",*" is a valid condition. */
2154 else if (*args
== 'a')
2155 as_bad (_("Invalid Add Condition: %s"), name
);
2158 opcode
|= cmpltr
<< 13;
2159 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2161 /* Handle non-negated add and branch condition. */
2163 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2166 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2169 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2171 /* Handle negated add and branch condition. */
2175 /* Handle wide-mode non-negated add and branch condition. */
2179 /* Handle wide-mode negated add and branch condition. */
2183 /* Handle a negated or non-negated add and branch
2187 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2191 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
2194 as_bad (_("Invalid Compare/Subtract Condition"));
2199 /* Negated condition requires an opcode change. */
2203 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2205 /* Handle branch on bit conditions. */
2223 if (strncmp (s
, "<", 1) == 0)
2228 else if (strncmp (s
, ">=", 2) == 0)
2234 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
2236 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
2238 /* Handle a compare/subtract condition. */
2247 /* 64 bit conditions. */
2260 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2264 if (strcmp (name
, "=") == 0)
2266 else if (strcmp (name
, "<") == 0)
2268 else if (strcmp (name
, "<=") == 0)
2270 else if (strcasecmp (name
, "<<") == 0)
2272 else if (strcasecmp (name
, "<<=") == 0)
2274 else if (strcasecmp (name
, "sv") == 0)
2276 else if (strcasecmp (name
, "od") == 0)
2278 else if (strcasecmp (name
, "tr") == 0)
2283 else if (strcmp (name
, "<>") == 0)
2288 else if (strcmp (name
, ">=") == 0)
2293 else if (strcmp (name
, ">") == 0)
2298 else if (strcasecmp (name
, ">>=") == 0)
2303 else if (strcasecmp (name
, ">>") == 0)
2308 else if (strcasecmp (name
, "nsv") == 0)
2313 else if (strcasecmp (name
, "ev") == 0)
2318 /* ",*" is a valid condition. */
2319 else if (*args
!= 'S')
2320 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2324 opcode
|= cmpltr
<< 13;
2325 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2327 /* Handle a non-negated compare condition. */
2329 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2332 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2335 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2337 /* Handle a negated compare condition. */
2341 /* Handle a 64 bit non-negated compare condition. */
2345 /* Handle a 64 bit negated compare condition. */
2349 /* Handle a 64 bit cmpib condition. */
2353 /* Handle a negated or non-negated compare/subtract
2357 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2361 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2364 as_bad (_("Invalid Compare/Subtract Condition."));
2369 /* Negated condition requires an opcode change. */
2374 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2376 /* Handle a logical instruction condition. */
2385 /* 64 bit conditions. */
2398 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2404 if (strcmp (name
, "=") == 0)
2406 else if (strcmp (name
, "<") == 0)
2408 else if (strcmp (name
, "<=") == 0)
2410 else if (strcasecmp (name
, "od") == 0)
2412 else if (strcasecmp (name
, "tr") == 0)
2417 else if (strcmp (name
, "<>") == 0)
2422 else if (strcmp (name
, ">=") == 0)
2427 else if (strcmp (name
, ">") == 0)
2432 else if (strcasecmp (name
, "ev") == 0)
2437 /* ",*" is a valid condition. */
2438 else if (*args
!= 'L')
2439 as_bad (_("Invalid Logical Instruction Condition."));
2442 opcode
|= cmpltr
<< 13;
2443 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2445 /* Handle a shift/extract/deposit condition. */
2454 /* 64 bit conditions. */
2467 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2471 if (strcmp (name
, "=") == 0)
2473 else if (strcmp (name
, "<") == 0)
2475 else if (strcasecmp (name
, "od") == 0)
2477 else if (strcasecmp (name
, "tr") == 0)
2479 else if (strcmp (name
, "<>") == 0)
2481 else if (strcmp (name
, ">=") == 0)
2483 else if (strcasecmp (name
, "ev") == 0)
2485 /* Handle movb,n. Put things back the way they were.
2486 This includes moving s back to where it started. */
2487 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2493 /* ",*" is a valid condition. */
2494 else if (*args
!= 'X')
2495 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2498 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2500 /* Handle a unit instruction condition. */
2509 /* 64 bit conditions. */
2520 if (strncasecmp (s
, "sbz", 3) == 0)
2525 else if (strncasecmp (s
, "shz", 3) == 0)
2530 else if (strncasecmp (s
, "sdc", 3) == 0)
2535 else if (strncasecmp (s
, "sbc", 3) == 0)
2540 else if (strncasecmp (s
, "shc", 3) == 0)
2545 else if (strncasecmp (s
, "tr", 2) == 0)
2551 else if (strncasecmp (s
, "nbz", 3) == 0)
2557 else if (strncasecmp (s
, "nhz", 3) == 0)
2563 else if (strncasecmp (s
, "ndc", 3) == 0)
2569 else if (strncasecmp (s
, "nbc", 3) == 0)
2575 else if (strncasecmp (s
, "nhc", 3) == 0)
2581 /* ",*" is a valid condition. */
2582 else if (*args
!= 'U')
2583 as_bad (_("Invalid Unit Instruction Condition."));
2585 opcode
|= cmpltr
<< 13;
2586 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2594 /* Handle a nullification completer for branch instructions. */
2596 nullif
= pa_parse_nullif (&s
);
2597 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2599 /* Handle a nullification completer for copr and spop insns. */
2601 nullif
= pa_parse_nullif (&s
);
2602 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2605 /* Handle a 11 bit immediate at 31. */
2607 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2610 if (the_insn
.exp
.X_op
== O_constant
)
2612 num
= evaluate_absolute (&the_insn
);
2613 CHECK_FIELD (num
, 1023, -1024, 0);
2614 low_sign_unext (num
, 11, &num
);
2615 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2619 if (is_DP_relative (the_insn
.exp
))
2620 the_insn
.reloc
= R_HPPA_GOTOFF
;
2621 else if (is_PC_relative (the_insn
.exp
))
2622 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2624 the_insn
.reloc
= R_HPPA
;
2625 the_insn
.format
= 11;
2630 /* Handle a 14 bit immediate at 31. */
2632 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2635 if (the_insn
.exp
.X_op
== O_constant
)
2637 num
= evaluate_absolute (&the_insn
);
2638 CHECK_FIELD (num
, 8191, -8192, 0);
2639 low_sign_unext (num
, 14, &num
);
2640 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2644 if (is_DP_relative (the_insn
.exp
))
2645 the_insn
.reloc
= R_HPPA_GOTOFF
;
2646 else if (is_PC_relative (the_insn
.exp
))
2647 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2649 the_insn
.reloc
= R_HPPA
;
2650 the_insn
.format
= 14;
2654 /* Handle a 21 bit immediate at 31. */
2656 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2659 if (the_insn
.exp
.X_op
== O_constant
)
2661 num
= evaluate_absolute (&the_insn
);
2662 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2663 dis_assemble_21 (num
, &num
);
2664 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2668 if (is_DP_relative (the_insn
.exp
))
2669 the_insn
.reloc
= R_HPPA_GOTOFF
;
2670 else if (is_PC_relative (the_insn
.exp
))
2671 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2673 the_insn
.reloc
= R_HPPA
;
2674 the_insn
.format
= 21;
2678 /* Handle a 12 bit branch displacement. */
2680 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2684 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2686 unsigned int w1
, w
, result
;
2688 num
= evaluate_absolute (&the_insn
);
2691 as_bad (_("Branch to unaligned address"));
2694 CHECK_FIELD (num
, 8199, -8184, 0);
2695 sign_unext ((num
- 8) >> 2, 12, &result
);
2696 dis_assemble_12 (result
, &w1
, &w
);
2697 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2701 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2702 the_insn
.format
= 12;
2703 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2704 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2709 /* Handle a 17 bit branch displacement. */
2711 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2715 if (!the_insn
.exp
.X_add_symbol
2716 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2719 unsigned int w2
, w1
, w
, result
;
2721 num
= evaluate_absolute (&the_insn
);
2724 as_bad (_("Branch to unaligned address"));
2727 CHECK_FIELD (num
, 262143, -262144, 0);
2729 if (the_insn
.exp
.X_add_symbol
)
2732 sign_unext (num
>> 2, 17, &result
);
2733 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2734 INSERT_FIELD_AND_CONTINUE (opcode
,
2735 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2739 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2740 the_insn
.format
= 17;
2741 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2742 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2746 /* Handle an absolute 17 bit branch target. */
2748 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2752 if (!the_insn
.exp
.X_add_symbol
2753 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2756 unsigned int w2
, w1
, w
, result
;
2758 num
= evaluate_absolute (&the_insn
);
2761 as_bad (_("Branch to unaligned address"));
2764 CHECK_FIELD (num
, 262143, -262144, 0);
2766 if (the_insn
.exp
.X_add_symbol
)
2769 sign_unext (num
>> 2, 17, &result
);
2770 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2771 INSERT_FIELD_AND_CONTINUE (opcode
,
2772 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2776 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2777 the_insn
.format
= 17;
2778 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2779 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2783 /* Handle a 2 bit shift count at 25. */
2785 num
= pa_get_absolute_expression (&the_insn
, &s
);
2787 CHECK_FIELD (num
, 3, 1, 0);
2788 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2790 /* Handle a 4 bit shift count at 25. */
2792 num
= pa_get_absolute_expression (&the_insn
, &s
);
2794 CHECK_FIELD (num
, 15, 0, 0);
2795 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2797 /* Handle a 5 bit shift count at 26. */
2799 num
= pa_get_absolute_expression (&the_insn
, &s
);
2801 CHECK_FIELD (num
, 31, 0, 0);
2802 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2804 /* Handle a 6 bit shift count at 20,22:26. */
2806 num
= pa_get_absolute_expression (&the_insn
, &s
);
2808 CHECK_FIELD (num
, 63, 0, 0);
2810 opcode
|= (num
& 0x20) << 6;
2811 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2813 /* Handle a 6 bit field length at 23,27:31. */
2816 num
= pa_get_absolute_expression (&the_insn
, &s
);
2818 CHECK_FIELD (num
, 64, 1, 0);
2820 opcode
|= (num
& 0x20) << 3;
2821 num
= 31 - (num
& 0x1f);
2822 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2824 /* Handle a 6 bit field length at 19,27:31. */
2826 num
= pa_get_absolute_expression (&the_insn
, &s
);
2828 CHECK_FIELD (num
, 64, 1, 0);
2830 opcode
|= (num
& 0x20) << 7;
2831 num
= 31 - (num
& 0x1f);
2832 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2834 /* Handle a 5 bit bit position at 26. */
2836 num
= pa_get_absolute_expression (&the_insn
, &s
);
2838 CHECK_FIELD (num
, 31, 0, 0);
2839 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2841 /* Handle a 6 bit bit position at 20,22:26. */
2843 num
= pa_get_absolute_expression (&the_insn
, &s
);
2845 CHECK_FIELD (num
, 63, 0, 0);
2846 opcode
|= (num
& 0x20) << 6;
2847 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2849 /* Handle a 5 bit immediate at 10. */
2851 num
= pa_get_absolute_expression (&the_insn
, &s
);
2852 if (the_insn
.exp
.X_op
!= O_constant
)
2855 CHECK_FIELD (num
, 31, 0, 0);
2856 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2858 /* Handle a 9 bit immediate at 28. */
2860 num
= pa_get_absolute_expression (&the_insn
, &s
);
2862 CHECK_FIELD (num
, 511, 1, 0);
2863 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
2865 /* Handle a 13 bit immediate at 18. */
2867 num
= pa_get_absolute_expression (&the_insn
, &s
);
2869 CHECK_FIELD (num
, 8191, 0, 0);
2870 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2872 /* Handle a 26 bit immediate at 31. */
2874 num
= pa_get_absolute_expression (&the_insn
, &s
);
2876 CHECK_FIELD (num
, 671108864, 0, 0);
2877 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2879 /* Handle a 3 bit SFU identifier at 25. */
2882 as_bad (_("Invalid SFU identifier"));
2883 num
= pa_get_absolute_expression (&the_insn
, &s
);
2885 CHECK_FIELD (num
, 7, 0, 0);
2886 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2888 /* Handle a 20 bit SOP field for spop0. */
2890 num
= pa_get_absolute_expression (&the_insn
, &s
);
2892 CHECK_FIELD (num
, 1048575, 0, 0);
2893 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2894 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2896 /* Handle a 15bit SOP field for spop1. */
2898 num
= pa_get_absolute_expression (&the_insn
, &s
);
2900 CHECK_FIELD (num
, 32767, 0, 0);
2901 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2903 /* Handle a 10bit SOP field for spop3. */
2905 num
= pa_get_absolute_expression (&the_insn
, &s
);
2907 CHECK_FIELD (num
, 1023, 0, 0);
2908 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
2909 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2911 /* Handle a 15 bit SOP field for spop2. */
2913 num
= pa_get_absolute_expression (&the_insn
, &s
);
2915 CHECK_FIELD (num
, 32767, 0, 0);
2916 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
2917 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2919 /* Handle a 3-bit co-processor ID field. */
2922 as_bad (_("Invalid COPR identifier"));
2923 num
= pa_get_absolute_expression (&the_insn
, &s
);
2925 CHECK_FIELD (num
, 7, 0, 0);
2926 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2928 /* Handle a 22bit SOP field for copr. */
2930 num
= pa_get_absolute_expression (&the_insn
, &s
);
2932 CHECK_FIELD (num
, 4194303, 0, 0);
2933 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
2934 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2937 /* Handle a source FP operand format completer. */
2939 flag
= pa_parse_fp_format (&s
);
2940 the_insn
.fpof1
= flag
;
2941 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2943 /* Handle a destination FP operand format completer. */
2945 /* pa_parse_format needs the ',' prefix. */
2947 flag
= pa_parse_fp_format (&s
);
2948 the_insn
.fpof2
= flag
;
2949 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
2951 /* Handle a source FP operand format completer at 20. */
2953 flag
= pa_parse_fp_format (&s
);
2954 the_insn
.fpof1
= flag
;
2955 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2957 /* Handle a floating point operand format at 26.
2958 Only allows single and double precision. */
2960 flag
= pa_parse_fp_format (&s
);
2966 the_insn
.fpof1
= flag
;
2972 as_bad (_("Invalid Floating Point Operand Format."));
2976 /* Handle all floating point registers. */
2980 /* Float target register. */
2982 num
= pa_parse_number (&s
, 0);
2983 CHECK_FIELD (num
, 31, 0, 0);
2984 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2986 /* Float target register with L/R selection. */
2989 struct pa_11_fp_reg_struct result
;
2991 pa_parse_number (&s
, &result
);
2992 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2993 opcode
|= result
.number_part
;
2995 /* 0x30 opcodes are FP arithmetic operation opcodes
2996 and need to be turned into 0x38 opcodes. This
2997 is not necessary for loads/stores. */
2998 if (need_pa11_opcode (&the_insn
, &result
)
2999 && ((opcode
& 0xfc000000) == 0x30000000))
3002 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
3005 /* Float operand 1. */
3008 struct pa_11_fp_reg_struct result
;
3010 pa_parse_number (&s
, &result
);
3011 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3012 opcode
|= result
.number_part
<< 21;
3013 if (need_pa11_opcode (&the_insn
, &result
))
3015 opcode
|= (result
.l_r_select
& 1) << 7;
3021 /* Float operand 1 with L/R selection. */
3024 struct pa_11_fp_reg_struct result
;
3026 pa_parse_number (&s
, &result
);
3027 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3028 opcode
|= result
.number_part
<< 21;
3029 opcode
|= (result
.l_r_select
& 1) << 7;
3033 /* Float operand 2. */
3036 struct pa_11_fp_reg_struct result
;
3038 pa_parse_number (&s
, &result
);
3039 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3040 opcode
|= (result
.number_part
& 0x1f) << 16;
3041 if (need_pa11_opcode (&the_insn
, &result
))
3043 opcode
|= (result
.l_r_select
& 1) << 12;
3049 /* Float operand 2 with L/R selection. */
3052 struct pa_11_fp_reg_struct result
;
3054 pa_parse_number (&s
, &result
);
3055 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3056 opcode
|= (result
.number_part
& 0x1f) << 16;
3057 opcode
|= (result
.l_r_select
& 1) << 12;
3061 /* Float operand 3 for fmpyfadd, fmpynfadd. */
3064 struct pa_11_fp_reg_struct result
;
3067 pa_parse_number (&s
, &result
);
3068 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3069 opcode
|= (result
.number_part
& 0x1c) << 11;
3070 opcode
|= (result
.number_part
& 0x3) << 9;
3071 opcode
|= (result
.l_r_select
& 1) << 8;
3075 /* Float mult operand 1 for fmpyadd, fmpysub */
3078 struct pa_11_fp_reg_struct result
;
3080 pa_parse_number (&s
, &result
);
3081 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3082 if (the_insn
.fpof1
== SGL
)
3084 if (result
.number_part
< 16)
3086 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3090 result
.number_part
&= 0xF;
3091 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3093 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
3096 /* Float mult operand 2 for fmpyadd, fmpysub */
3099 struct pa_11_fp_reg_struct result
;
3101 pa_parse_number (&s
, &result
);
3102 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3103 if (the_insn
.fpof1
== SGL
)
3105 if (result
.number_part
< 16)
3107 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3110 result
.number_part
&= 0xF;
3111 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3113 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
3116 /* Float mult target for fmpyadd, fmpysub */
3119 struct pa_11_fp_reg_struct result
;
3121 pa_parse_number (&s
, &result
);
3122 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3123 if (the_insn
.fpof1
== SGL
)
3125 if (result
.number_part
< 16)
3127 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3130 result
.number_part
&= 0xF;
3131 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3133 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
3136 /* Float add operand 1 for fmpyadd, fmpysub */
3139 struct pa_11_fp_reg_struct result
;
3141 pa_parse_number (&s
, &result
);
3142 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3143 if (the_insn
.fpof1
== SGL
)
3145 if (result
.number_part
< 16)
3147 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3150 result
.number_part
&= 0xF;
3151 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3153 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
3156 /* Float add target for fmpyadd, fmpysub */
3159 struct pa_11_fp_reg_struct result
;
3161 pa_parse_number (&s
, &result
);
3162 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3163 if (the_insn
.fpof1
== SGL
)
3165 if (result
.number_part
< 16)
3167 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3170 result
.number_part
&= 0xF;
3171 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3173 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
3181 /* Handle L/R register halves like 'x'. */
3184 struct pa_11_fp_reg_struct result
;
3186 pa_parse_number (&s
, &result
);
3187 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3188 opcode
|= (result
.number_part
& 0x1f) << 16;
3189 if (need_pa11_opcode (&the_insn
, &result
))
3191 opcode
|= (result
.l_r_select
& 1) << 1;
3203 /* Check if the args matched. */
3206 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
3207 && !strcmp (insn
->name
, insn
[1].name
))
3215 as_bad (_("Invalid operands %s"), error_message
);
3222 the_insn
.opcode
= opcode
;
3225 /* Turn a string in input_line_pointer into a floating point constant of type
3226 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3227 emitted is stored in *sizeP . An error message or NULL is returned. */
3229 #define MAX_LITTLENUMS 6
3232 md_atof (type
, litP
, sizeP
)
3238 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
3239 LITTLENUM_TYPE
*wordP
;
3271 return _("Bad call to MD_ATOF()");
3273 t
= atof_ieee (input_line_pointer
, type
, words
);
3275 input_line_pointer
= t
;
3276 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
3277 for (wordP
= words
; prec
--;)
3279 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
3280 litP
+= sizeof (LITTLENUM_TYPE
);
3285 /* Write out big-endian. */
3288 md_number_to_chars (buf
, val
, n
)
3293 number_to_chars_bigendian (buf
, val
, n
);
3296 /* Translate internal representation of relocation info to BFD target
3300 tc_gen_reloc (section
, fixp
)
3305 struct hppa_fix_struct
*hppa_fixp
;
3306 bfd_reloc_code_real_type code
;
3307 static arelent
*no_relocs
= NULL
;
3309 bfd_reloc_code_real_type
**codes
;
3313 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
3314 if (fixp
->fx_addsy
== 0)
3316 assert (hppa_fixp
!= 0);
3317 assert (section
!= 0);
3319 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
3321 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3322 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3323 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
3325 hppa_fixp
->fx_r_format
,
3326 hppa_fixp
->fx_r_field
,
3327 fixp
->fx_subsy
!= NULL
,
3328 symbol_get_bfdsym (fixp
->fx_addsy
));
3333 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
3336 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
3337 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
3338 for (i
= 0; i
< n_relocs
; i
++)
3339 relocs
[i
] = &reloc
[i
];
3341 relocs
[n_relocs
] = NULL
;
3344 switch (fixp
->fx_r_type
)
3347 assert (n_relocs
== 1);
3351 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3352 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3353 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3354 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3355 reloc
->addend
= 0; /* default */
3357 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
3359 /* Now, do any processing that is dependent on the relocation type. */
3362 case R_PARISC_DLTREL21L
:
3363 case R_PARISC_DLTREL14R
:
3364 case R_PARISC_DLTREL14F
:
3365 case R_PARISC_PLABEL32
:
3366 case R_PARISC_PLABEL21L
:
3367 case R_PARISC_PLABEL14R
:
3368 /* For plabel relocations, the addend of the
3369 relocation should be either 0 (no static link) or 2
3370 (static link required).
3372 FIXME: We always assume no static link!
3374 We also slam a zero addend into the DLT relative relocs;
3375 it doesn't make a lot of sense to use any addend since
3376 it gets you a different (eg unknown) DLT entry. */
3380 case R_PARISC_PCREL21L
:
3381 case R_PARISC_PCREL17R
:
3382 case R_PARISC_PCREL17F
:
3383 case R_PARISC_PCREL17C
:
3384 case R_PARISC_PCREL14R
:
3385 case R_PARISC_PCREL14F
:
3386 /* The constant is stored in the instruction. */
3387 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3390 reloc
->addend
= fixp
->fx_offset
;
3397 /* Walk over reach relocation returned by the BFD backend. */
3398 for (i
= 0; i
< n_relocs
; i
++)
3402 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3403 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3404 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3405 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3410 /* The only time we ever use a R_COMP2 fixup is for the difference
3411 of two symbols. With that in mind we fill in all four
3412 relocs now and break out of the loop. */
3414 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3415 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
3416 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3417 relocs
[0]->addend
= 0;
3418 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3419 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3420 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
3421 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3422 relocs
[1]->addend
= 0;
3423 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3424 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3425 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3426 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3427 relocs
[2]->addend
= 0;
3428 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3429 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3430 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3431 relocs
[3]->addend
= 0;
3432 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3433 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3434 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3435 relocs
[4]->addend
= 0;
3439 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3445 /* For plabel relocations, the addend of the
3446 relocation should be either 0 (no static link) or 2
3447 (static link required).
3449 FIXME: We always assume no static link!
3451 We also slam a zero addend into the DLT relative relocs;
3452 it doesn't make a lot of sense to use any addend since
3453 it gets you a different (eg unknown) DLT entry. */
3454 relocs
[i
]->addend
= 0;
3469 /* There is no symbol or addend associated with these fixups. */
3470 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3471 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3472 relocs
[i
]->addend
= 0;
3478 /* There is no symbol associated with these fixups. */
3479 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3480 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3481 relocs
[i
]->addend
= fixp
->fx_offset
;
3485 relocs
[i
]->addend
= fixp
->fx_offset
;
3495 /* Process any machine dependent frag types. */
3498 md_convert_frag (abfd
, sec
, fragP
)
3500 register asection
*sec
;
3501 register fragS
*fragP
;
3503 unsigned int address
;
3505 if (fragP
->fr_type
== rs_machine_dependent
)
3507 switch ((int) fragP
->fr_subtype
)
3510 fragP
->fr_type
= rs_fill
;
3511 know (fragP
->fr_var
== 1);
3512 know (fragP
->fr_next
);
3513 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3514 if (address
% fragP
->fr_offset
)
3517 fragP
->fr_next
->fr_address
3522 fragP
->fr_offset
= 0;
3528 /* Round up a section size to the appropriate boundary. */
3531 md_section_align (segment
, size
)
3535 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3536 int align2
= (1 << align
) - 1;
3538 return (size
+ align2
) & ~align2
;
3541 /* Return the approximate size of a frag before relaxation has occurred. */
3543 md_estimate_size_before_relax (fragP
, segment
)
3544 register fragS
*fragP
;
3551 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3557 CONST
char *md_shortopts
= "";
3558 struct option md_longopts
[] = {
3559 {NULL
, no_argument
, NULL
, 0}
3561 size_t md_longopts_size
= sizeof(md_longopts
);
3564 md_parse_option (c
, arg
)
3572 md_show_usage (stream
)
3577 /* We have no need to default values of symbols. */
3580 md_undefined_symbol (name
)
3586 /* Apply a fixup to an instruction. */
3589 md_apply_fix (fixP
, valp
)
3593 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3594 struct hppa_fix_struct
*hppa_fixP
;
3595 long new_val
, result
= 0;
3596 unsigned int w1
, w2
, w
, resulti
;
3598 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3599 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3600 never be "applied" (they are just markers). Likewise for
3601 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3603 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3604 || fixP
->fx_r_type
== R_HPPA_EXIT
3605 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3606 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3607 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3610 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3611 fixups are considered not adjustable, which in turn causes
3612 adjust_reloc_syms to not set fx_offset. Ugh. */
3613 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3615 fixP
->fx_offset
= *valp
;
3620 /* There should have been an HPPA specific fixup associated
3621 with the GAS fixup. */
3624 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3625 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3627 /* If there is a symbol associated with this fixup, then it's something
3628 which will need a SOM relocation (except for some PC-relative relocs).
3629 In such cases we should treat the "val" or "addend" as zero since it
3630 will be added in as needed from fx_offset in tc_gen_reloc. */
3631 if ((fixP
->fx_addsy
!= NULL
3632 || fixP
->fx_r_type
== R_HPPA_NONE
)
3637 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3639 /* These field selectors imply that we do not want an addend. */
3640 else if (hppa_fixP
->fx_r_field
== e_psel
3641 || hppa_fixP
->fx_r_field
== e_rpsel
3642 || hppa_fixP
->fx_r_field
== e_lpsel
3643 || hppa_fixP
->fx_r_field
== e_tsel
3644 || hppa_fixP
->fx_r_field
== e_rtsel
3645 || hppa_fixP
->fx_r_field
== e_ltsel
)
3646 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3647 /* This is truely disgusting. The machine independent code blindly
3648 adds in the value of the symbol being relocated against. Damn! */
3650 && fixP
->fx_addsy
!= NULL
3651 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3652 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3653 0, hppa_fixP
->fx_r_field
);
3656 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3658 /* Handle pc-relative exceptions from above. */
3659 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3660 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3661 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3665 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3666 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3667 hppa_fixP
->fx_arg_reloc
)
3669 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3670 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3672 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3674 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3675 #undef arg_reloc_stub_needed
3679 /* Handle all opcodes with the 'j' operand type. */
3681 CHECK_FIELD (new_val
, 8191, -8192, 0);
3683 /* Mask off 14 bits to be changed. */
3684 bfd_put_32 (stdoutput
,
3685 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3687 low_sign_unext (new_val
, 14, &resulti
);
3691 /* Handle all opcodes with the 'k' operand type. */
3693 CHECK_FIELD (new_val
, 2097152, 0, 0);
3695 /* Mask off 21 bits to be changed. */
3696 bfd_put_32 (stdoutput
,
3697 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3699 dis_assemble_21 (new_val
, &resulti
);
3703 /* Handle all the opcodes with the 'i' operand type. */
3705 CHECK_FIELD (new_val
, 1023, -1023, 0);
3707 /* Mask off 11 bits to be changed. */
3708 bfd_put_32 (stdoutput
,
3709 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3711 low_sign_unext (new_val
, 11, &resulti
);
3715 /* Handle all the opcodes with the 'w' operand type. */
3717 CHECK_FIELD (new_val
, 8199, -8184, 0);
3719 /* Mask off 11 bits to be changed. */
3720 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3721 bfd_put_32 (stdoutput
,
3722 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3725 dis_assemble_12 (resulti
, &w1
, &w
);
3726 result
= ((w1
<< 2) | w
);
3729 /* Handle some of the opcodes with the 'W' operand type. */
3732 int distance
= *valp
;
3734 CHECK_FIELD (new_val
, 262143, -262144, 0);
3736 /* If this is an absolute branch (ie no link) with an out of
3737 range target, then we want to complain. */
3738 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3739 && (distance
> 262143 || distance
< -262144)
3740 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3741 CHECK_FIELD (distance
, 262143, -262144, 0);
3743 /* Mask off 17 bits to be changed. */
3744 bfd_put_32 (stdoutput
,
3745 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3747 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3748 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3749 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3755 bfd_put_32 (stdoutput
, new_val
, buf
);
3759 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3763 /* Insert the relocation. */
3764 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3769 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3770 (unsigned int) fixP
, fixP
->fx_r_type
);
3775 /* Exactly what point is a PC-relative offset relative TO?
3776 On the PA, they're relative to the address of the offset. */
3779 md_pcrel_from (fixP
)
3782 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3785 /* Return nonzero if the input line pointer is at the end of
3789 is_end_of_statement ()
3791 return ((*input_line_pointer
== '\n')
3792 || (*input_line_pointer
== ';')
3793 || (*input_line_pointer
== '!'));
3796 /* Read a number from S. The number might come in one of many forms,
3797 the most common will be a hex or decimal constant, but it could be
3798 a pre-defined register (Yuk!), or an absolute symbol.
3800 Return a number or -1 for failure.
3802 When parsing PA-89 FP register numbers RESULT will be
3803 the address of a structure to return information about
3804 L/R half of FP registers, store results there as appropriate.
3806 pa_parse_number can not handle negative constants and will fail
3807 horribly if it is passed such a constant. */
3810 pa_parse_number (s
, result
)
3812 struct pa_11_fp_reg_struct
*result
;
3821 /* Skip whitespace before the number. */
3822 while (*p
== ' ' || *p
== '\t')
3825 /* Store info in RESULT if requested by caller. */
3828 result
->number_part
= -1;
3829 result
->l_r_select
= -1;
3835 /* Looks like a number. */
3838 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3840 /* The number is specified in hex. */
3842 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3843 || ((*p
>= 'A') && (*p
<= 'F')))
3846 num
= num
* 16 + *p
- '0';
3847 else if (*p
>= 'a' && *p
<= 'f')
3848 num
= num
* 16 + *p
- 'a' + 10;
3850 num
= num
* 16 + *p
- 'A' + 10;
3856 /* The number is specified in decimal. */
3857 while (isdigit (*p
))
3859 num
= num
* 10 + *p
- '0';
3864 /* Store info in RESULT if requested by the caller. */
3867 result
->number_part
= num
;
3869 if (IS_R_SELECT (p
))
3871 result
->l_r_select
= 1;
3874 else if (IS_L_SELECT (p
))
3876 result
->l_r_select
= 0;
3880 result
->l_r_select
= 0;
3885 /* The number might be a predefined register. */
3890 /* Tege hack: Special case for general registers as the general
3891 code makes a binary search with case translation, and is VERY
3896 if (*p
== 'e' && *(p
+ 1) == 't'
3897 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3900 num
= *p
- '0' + 28;
3908 else if (!isdigit (*p
))
3911 as_bad (_("Undefined register: '%s'."), name
);
3917 num
= num
* 10 + *p
++ - '0';
3918 while (isdigit (*p
));
3923 /* Do a normal register search. */
3924 while (is_part_of_name (c
))
3930 status
= reg_name_search (name
);
3936 as_bad (_("Undefined register: '%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;
3956 /* And finally, it could be a symbol in the absolute section which
3957 is effectively a constant. */
3961 while (is_part_of_name (c
))
3967 if ((sym
= symbol_find (name
)) != NULL
)
3969 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3970 num
= S_GET_VALUE (sym
);
3974 as_bad (_("Non-absolute symbol: '%s'."), name
);
3980 /* There is where we'd come for an undefined symbol
3981 or for an empty string. For an empty string we
3982 will return zero. That's a concession made for
3983 compatability with the braindamaged HP assemblers. */
3989 as_bad (_("Undefined absolute constant: '%s'."), name
);
3995 /* Store info in RESULT if requested by caller. */
3998 result
->number_part
= num
;
3999 if (IS_R_SELECT (p
- 1))
4000 result
->l_r_select
= 1;
4001 else if (IS_L_SELECT (p
- 1))
4002 result
->l_r_select
= 0;
4004 result
->l_r_select
= 0;
4012 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
4014 /* Given NAME, find the register number associated with that name, return
4015 the integer value associated with the given name or -1 on failure. */
4018 reg_name_search (name
)
4021 int middle
, low
, high
;
4025 high
= REG_NAME_CNT
- 1;
4029 middle
= (low
+ high
) / 2;
4030 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
4036 return pre_defined_registers
[middle
].value
;
4038 while (low
<= high
);
4044 /* Return nonzero if the given INSN and L/R information will require
4045 a new PA-1.1 opcode. */
4048 need_pa11_opcode (insn
, result
)
4050 struct pa_11_fp_reg_struct
*result
;
4052 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
4054 /* If this instruction is specific to a particular architecture,
4055 then set a new architecture. */
4056 if (bfd_get_mach (stdoutput
) < pa11
)
4058 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
4059 as_warn (_("could not update architecture and machine"));
4067 /* Parse a condition for a fcmp instruction. Return the numerical
4068 code associated with the condition. */
4071 pa_parse_fp_cmp_cond (s
)
4078 for (i
= 0; i
< 32; i
++)
4080 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
4081 strlen (fp_cond_map
[i
].string
)) == 0)
4083 cond
= fp_cond_map
[i
].cond
;
4084 *s
+= strlen (fp_cond_map
[i
].string
);
4085 /* If not a complete match, back up the input string and
4087 if (**s
!= ' ' && **s
!= '\t')
4089 *s
-= strlen (fp_cond_map
[i
].string
);
4092 while (**s
== ' ' || **s
== '\t')
4098 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
4100 /* Advance over the bogus completer. */
4101 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4108 /* Parse an FP operand format completer returning the completer
4111 static fp_operand_format
4112 pa_parse_fp_format (s
)
4121 if (strncasecmp (*s
, "sgl", 3) == 0)
4126 else if (strncasecmp (*s
, "dbl", 3) == 0)
4131 else if (strncasecmp (*s
, "quad", 4) == 0)
4138 format
= ILLEGAL_FMT
;
4139 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
4146 /* Convert from a selector string into a selector type. */
4149 pa_chk_field_selector (str
)
4152 int middle
, low
, high
;
4156 /* Read past any whitespace. */
4157 /* FIXME: should we read past newlines and formfeeds??? */
4158 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
4161 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
4162 name
[0] = tolower ((*str
)[0]),
4164 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
4165 name
[0] = tolower ((*str
)[0]),
4166 name
[1] = tolower ((*str
)[1]),
4168 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
4169 name
[0] = tolower ((*str
)[0]),
4170 name
[1] = tolower ((*str
)[1]),
4171 name
[2] = tolower ((*str
)[2]),
4177 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
4181 middle
= (low
+ high
) / 2;
4182 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
4189 *str
+= strlen (name
) + 1;
4191 if (selector_table
[middle
].field_selector
== e_nsel
)
4194 return selector_table
[middle
].field_selector
;
4197 while (low
<= high
);
4202 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
4205 get_expression (str
)
4211 save_in
= input_line_pointer
;
4212 input_line_pointer
= str
;
4213 seg
= expression (&the_insn
.exp
);
4214 if (!(seg
== absolute_section
4215 || seg
== undefined_section
4216 || SEG_NORMAL (seg
)))
4218 as_warn (_("Bad segment in expression."));
4219 expr_end
= input_line_pointer
;
4220 input_line_pointer
= save_in
;
4223 expr_end
= input_line_pointer
;
4224 input_line_pointer
= save_in
;
4228 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
4230 pa_get_absolute_expression (insn
, strp
)
4236 insn
->field_selector
= pa_chk_field_selector (strp
);
4237 save_in
= input_line_pointer
;
4238 input_line_pointer
= *strp
;
4239 expression (&insn
->exp
);
4240 /* This is not perfect, but is a huge improvement over doing nothing.
4242 The PA assembly syntax is ambigious in a variety of ways. Consider
4243 this string "4 %r5" Is that the number 4 followed by the register
4244 r5, or is that 4 MOD 5?
4246 If we get a modulo expresion When looking for an absolute, we try
4247 again cutting off the input string at the first whitespace character. */
4248 if (insn
->exp
.X_op
== O_modulus
)
4253 input_line_pointer
= *strp
;
4255 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4261 retval
= pa_get_absolute_expression (insn
, strp
);
4263 input_line_pointer
= save_in
;
4265 return evaluate_absolute (insn
);
4267 if (insn
->exp
.X_op
!= O_constant
)
4269 as_bad (_("Bad segment (should be absolute)."));
4270 expr_end
= input_line_pointer
;
4271 input_line_pointer
= save_in
;
4274 expr_end
= input_line_pointer
;
4275 input_line_pointer
= save_in
;
4276 return evaluate_absolute (insn
);
4279 /* Evaluate an absolute expression EXP which may be modified by
4280 the selector FIELD_SELECTOR. Return the value of the expression. */
4282 evaluate_absolute (insn
)
4287 int field_selector
= insn
->field_selector
;
4290 value
= exp
.X_add_number
;
4292 switch (field_selector
)
4298 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4300 if (value
& 0x00000400)
4302 value
= (value
& 0xfffff800) >> 11;
4305 /* Sign extend from bit 21. */
4307 if (value
& 0x00000400)
4308 value
|= 0xfffff800;
4313 /* Arithmetic shift right 11 bits. */
4315 value
= (value
& 0xfffff800) >> 11;
4318 /* Set bits 0-20 to zero. */
4320 value
= value
& 0x7ff;
4323 /* Add 0x800 and arithmetic shift right 11 bits. */
4326 value
= (value
& 0xfffff800) >> 11;
4329 /* Set bitgs 0-21 to one. */
4331 value
|= 0xfffff800;
4334 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
4336 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
4340 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
4345 BAD_CASE (field_selector
);
4351 /* Given an argument location specification return the associated
4352 argument location number. */
4355 pa_build_arg_reloc (type_name
)
4359 if (strncasecmp (type_name
, "no", 2) == 0)
4361 if (strncasecmp (type_name
, "gr", 2) == 0)
4363 else if (strncasecmp (type_name
, "fr", 2) == 0)
4365 else if (strncasecmp (type_name
, "fu", 2) == 0)
4368 as_bad (_("Invalid argument location: %s\n"), type_name
);
4373 /* Encode and return an argument relocation specification for
4374 the given register in the location specified by arg_reloc. */
4377 pa_align_arg_reloc (reg
, arg_reloc
)
4379 unsigned int arg_reloc
;
4381 unsigned int new_reloc
;
4383 new_reloc
= arg_reloc
;
4399 as_bad (_("Invalid argument description: %d"), reg
);
4405 /* Parse a PA nullification completer (,n). Return nonzero if the
4406 completer was found; return zero if no completer was found. */
4418 if (strncasecmp (*s
, "n", 1) == 0)
4422 as_bad (_("Invalid Nullification: (%c)"), **s
);
4431 /* Parse a non-negated compare/subtract completer returning the
4432 number (for encoding in instrutions) of the given completer.
4434 ISBRANCH specifies whether or not this is parsing a condition
4435 completer for a branch (vs a nullification completer for a
4436 computational instruction. */
4439 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4444 char *name
= *s
+ 1;
4453 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4459 if (strcmp (name
, "=") == 0)
4463 else if (strcmp (name
, "<") == 0)
4467 else if (strcmp (name
, "<=") == 0)
4471 else if (strcmp (name
, "<<") == 0)
4475 else if (strcmp (name
, "<<=") == 0)
4479 else if (strcasecmp (name
, "sv") == 0)
4483 else if (strcasecmp (name
, "od") == 0)
4487 /* If we have something like addb,n then there is no condition
4489 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4501 /* Reset pointers if this was really a ,n for a branch instruction. */
4509 /* Parse a negated compare/subtract completer returning the
4510 number (for encoding in instrutions) of the given completer.
4512 ISBRANCH specifies whether or not this is parsing a condition
4513 completer for a branch (vs a nullification completer for a
4514 computational instruction. */
4517 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4522 char *name
= *s
+ 1;
4531 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4537 if (strcasecmp (name
, "tr") == 0)
4541 else if (strcmp (name
, "<>") == 0)
4545 else if (strcmp (name
, ">=") == 0)
4549 else if (strcmp (name
, ">") == 0)
4553 else if (strcmp (name
, ">>=") == 0)
4557 else if (strcmp (name
, ">>") == 0)
4561 else if (strcasecmp (name
, "nsv") == 0)
4565 else if (strcasecmp (name
, "ev") == 0)
4569 /* If we have something like addb,n then there is no condition
4571 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4583 /* Reset pointers if this was really a ,n for a branch instruction. */
4592 /* Parse a non-negated addition completer returning the number
4593 (for encoding in instrutions) of the given completer.
4595 ISBRANCH specifies whether or not this is parsing a condition
4596 completer for a branch (vs a nullification completer for a
4597 computational instruction. */
4600 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4605 char *name
= *s
+ 1;
4613 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4617 if (strcmp (name
, "=") == 0)
4621 else if (strcmp (name
, "<") == 0)
4625 else if (strcmp (name
, "<=") == 0)
4629 else if (strcasecmp (name
, "nuv") == 0)
4633 else if (strcasecmp (name
, "znv") == 0)
4637 else if (strcasecmp (name
, "sv") == 0)
4641 else if (strcasecmp (name
, "od") == 0)
4645 /* If we have something like addb,n then there is no condition
4647 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4658 /* Reset pointers if this was really a ,n for a branch instruction. */
4659 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4665 /* Parse a negated addition completer returning the number
4666 (for encoding in instrutions) of the given completer.
4668 ISBRANCH specifies whether or not this is parsing a condition
4669 completer for a branch (vs a nullification completer for a
4670 computational instruction). */
4673 pa_parse_neg_add_cmpltr (s
, isbranch
)
4678 char *name
= *s
+ 1;
4686 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4690 if (strcasecmp (name
, "tr") == 0)
4694 else if (strcmp (name
, "<>") == 0)
4698 else if (strcmp (name
, ">=") == 0)
4702 else if (strcmp (name
, ">") == 0)
4706 else if (strcasecmp (name
, "uv") == 0)
4710 else if (strcasecmp (name
, "vnz") == 0)
4714 else if (strcasecmp (name
, "nsv") == 0)
4718 else if (strcasecmp (name
, "ev") == 0)
4722 /* If we have something like addb,n then there is no condition
4724 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4735 /* Reset pointers if this was really a ,n for a branch instruction. */
4736 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4743 /* Handle an alignment directive. Special so that we can update the
4744 alignment of the subspace if necessary. */
4748 /* We must have a valid space and subspace. */
4749 pa_check_current_space_and_subspace ();
4751 /* Let the generic gas code do most of the work. */
4752 s_align_bytes (bytes
);
4754 /* If bytes is a power of 2, then update the current subspace's
4755 alignment if necessary. */
4756 if (log2 (bytes
) != -1)
4757 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4761 /* Handle a .BLOCK type pseudo-op. */
4769 unsigned int temp_size
;
4773 /* We must have a valid space and subspace. */
4774 pa_check_current_space_and_subspace ();
4777 temp_size
= get_absolute_expression ();
4779 /* Always fill with zeros, that's what the HP assembler does. */
4782 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4783 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4784 memset (p
, 0, temp_size
);
4786 /* Convert 2 bytes at a time. */
4788 for (i
= 0; i
< temp_size
; i
+= 2)
4790 md_number_to_chars (p
+ i
,
4792 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4795 pa_undefine_label ();
4796 demand_empty_rest_of_line ();
4799 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4807 /* The BRTAB relocations are only availble in SOM (to denote
4808 the beginning and end of branch tables). */
4809 char *where
= frag_more (0);
4811 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4812 NULL
, (offsetT
) 0, NULL
,
4813 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4814 e_fsel
, 0, 0, NULL
);
4817 demand_empty_rest_of_line ();
4820 /* Handle a .begin_try and .end_try pseudo-op. */
4828 char *where
= frag_more (0);
4833 /* The TRY relocations are only availble in SOM (to denote
4834 the beginning and end of exception handling regions). */
4836 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4837 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4838 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4839 e_fsel
, 0, 0, NULL
);
4842 demand_empty_rest_of_line ();
4845 /* Handle a .CALL pseudo-op. This involves storing away information
4846 about where arguments are to be found so the linker can detect
4847 (and correct) argument location mismatches between caller and callee. */
4854 /* We must have a valid space and subspace. */
4855 pa_check_current_space_and_subspace ();
4858 pa_call_args (&last_call_desc
);
4859 demand_empty_rest_of_line ();
4862 /* Do the dirty work of building a call descriptor which describes
4863 where the caller placed arguments to a function call. */
4866 pa_call_args (call_desc
)
4867 struct call_desc
*call_desc
;
4870 unsigned int temp
, arg_reloc
;
4872 while (!is_end_of_statement ())
4874 name
= input_line_pointer
;
4875 c
= get_symbol_end ();
4876 /* Process a source argument. */
4877 if ((strncasecmp (name
, "argw", 4) == 0))
4879 temp
= atoi (name
+ 4);
4880 p
= input_line_pointer
;
4882 input_line_pointer
++;
4883 name
= input_line_pointer
;
4884 c
= get_symbol_end ();
4885 arg_reloc
= pa_build_arg_reloc (name
);
4886 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4888 /* Process a return value. */
4889 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4891 p
= input_line_pointer
;
4893 input_line_pointer
++;
4894 name
= input_line_pointer
;
4895 c
= get_symbol_end ();
4896 arg_reloc
= pa_build_arg_reloc (name
);
4897 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4901 as_bad (_("Invalid .CALL argument: %s"), name
);
4903 p
= input_line_pointer
;
4905 if (!is_end_of_statement ())
4906 input_line_pointer
++;
4910 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4913 is_same_frag (frag1
, frag2
)
4920 else if (frag2
== NULL
)
4922 else if (frag1
== frag2
)
4924 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4925 return (is_same_frag (frag1
, frag2
->fr_next
));
4931 /* Build an entry in the UNWIND subspace from the given function
4932 attributes in CALL_INFO. This is not needed for SOM as using
4933 R_ENTRY and R_EXIT relocations allow the linker to handle building
4934 of the unwind spaces. */
4937 pa_build_unwind_subspace (call_info
)
4938 struct call_info
*call_info
;
4941 asection
*seg
, *save_seg
;
4943 subsegT subseg
, save_subseg
;
4947 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
4948 reloc
= R_PARISC_DIR32
;
4950 reloc
= R_PARISC_SEGREL32
;
4952 /* Get into the right seg/subseg. This may involve creating
4953 the seg the first time through. Make sure to have the
4954 old seg/subseg so that we can reset things when we are done. */
4955 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4956 if (seg
== ASEC_NULL
)
4958 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4959 bfd_set_section_flags (stdoutput
, seg
,
4960 SEC_READONLY
| SEC_HAS_CONTENTS
4961 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
4962 bfd_set_section_alignment (stdoutput
, seg
, 2);
4966 save_subseg
= now_subseg
;
4967 subseg_set (seg
, 0);
4970 /* Get some space to hold relocation information for the unwind
4973 md_number_to_chars (p
, 0, 4);
4975 /* Relocation info. for start offset of the function. */
4976 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4977 call_info
->start_symbol
, (offsetT
) 0,
4978 (expressionS
*) NULL
, 0, reloc
,
4979 e_fsel
, 32, 0, NULL
);
4982 md_number_to_chars (p
, 0, 4);
4984 /* Relocation info. for end offset of the function.
4986 Because we allow reductions of 32bit relocations for ELF, this will be
4987 reduced to section_sym + offset which avoids putting the temporary
4988 symbol into the symbol table. It (should) end up giving the same
4989 value as call_info->start_symbol + function size once the linker is
4990 finished with its work. */
4992 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4993 call_info
->end_symbol
, (offsetT
) 0,
4994 (expressionS
*) NULL
, 0, reloc
,
4995 e_fsel
, 32, 0, NULL
);
4998 unwind
= (char *) &call_info
->ci_unwind
;
4999 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
5003 FRAG_APPEND_1_CHAR (c
);
5007 /* Return back to the original segment/subsegment. */
5008 subseg_set (save_seg
, save_subseg
);
5012 /* Process a .CALLINFO pseudo-op. This information is used later
5013 to build unwind descriptors and maybe one day to support
5014 .ENTER and .LEAVE. */
5017 pa_callinfo (unused
)
5024 /* We must have a valid space and subspace. */
5025 pa_check_current_space_and_subspace ();
5028 /* .CALLINFO must appear within a procedure definition. */
5029 if (!within_procedure
)
5030 as_bad (_(".callinfo is not within a procedure definition"));
5032 /* Mark the fact that we found the .CALLINFO for the
5033 current procedure. */
5034 callinfo_found
= TRUE
;
5036 /* Iterate over the .CALLINFO arguments. */
5037 while (!is_end_of_statement ())
5039 name
= input_line_pointer
;
5040 c
= get_symbol_end ();
5041 /* Frame size specification. */
5042 if ((strncasecmp (name
, "frame", 5) == 0))
5044 p
= input_line_pointer
;
5046 input_line_pointer
++;
5047 temp
= get_absolute_expression ();
5048 if ((temp
& 0x3) != 0)
5050 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
5054 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5055 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
5058 /* Entry register (GR, GR and SR) specifications. */
5059 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
5061 p
= input_line_pointer
;
5063 input_line_pointer
++;
5064 temp
= get_absolute_expression ();
5065 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5066 even though %r19 is caller saved. I think this is a bug in
5067 the HP assembler, and we are not going to emulate it. */
5068 if (temp
< 3 || temp
> 18)
5069 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5070 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
5072 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
5074 p
= input_line_pointer
;
5076 input_line_pointer
++;
5077 temp
= get_absolute_expression ();
5078 /* Similarly the HP assembler takes 31 as the high bound even
5079 though %fr21 is the last callee saved floating point register. */
5080 if (temp
< 12 || temp
> 21)
5081 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5082 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
5084 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
5086 p
= input_line_pointer
;
5088 input_line_pointer
++;
5089 temp
= get_absolute_expression ();
5091 as_bad (_("Value for ENTRY_SR must be 3\n"));
5093 /* Note whether or not this function performs any calls. */
5094 else if ((strncasecmp (name
, "calls", 5) == 0) ||
5095 (strncasecmp (name
, "caller", 6) == 0))
5097 p
= input_line_pointer
;
5100 else if ((strncasecmp (name
, "no_calls", 8) == 0))
5102 p
= input_line_pointer
;
5105 /* Should RP be saved into the stack. */
5106 else if ((strncasecmp (name
, "save_rp", 7) == 0))
5108 p
= input_line_pointer
;
5110 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
5112 /* Likewise for SP. */
5113 else if ((strncasecmp (name
, "save_sp", 7) == 0))
5115 p
= input_line_pointer
;
5117 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
5119 /* Is this an unwindable procedure. If so mark it so
5120 in the unwind descriptor. */
5121 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
5123 p
= input_line_pointer
;
5125 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
5127 /* Is this an interrupt routine. If so mark it in the
5128 unwind descriptor. */
5129 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
5131 p
= input_line_pointer
;
5133 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
5135 /* Is this a millicode routine. "millicode" isn't in my
5136 assembler manual, but my copy is old. The HP assembler
5137 accepts it, and there's a place in the unwind descriptor
5138 to drop the information, so we'll accept it too. */
5139 else if ((strncasecmp (name
, "millicode", 9) == 0))
5141 p
= input_line_pointer
;
5143 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
5147 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
5148 *input_line_pointer
= c
;
5150 if (!is_end_of_statement ())
5151 input_line_pointer
++;
5154 demand_empty_rest_of_line ();
5157 /* Switch into the code subspace. */
5164 current_space
= is_defined_space ("$TEXT$");
5166 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
5169 pa_undefine_label ();
5172 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5173 the .comm pseudo-op has the following symtax:
5175 <label> .comm <length>
5177 where <label> is optional and is a symbol whose address will be the start of
5178 a block of memory <length> bytes long. <length> must be an absolute
5179 expression. <length> bytes will be allocated in the current space
5182 Also note the label may not even be on the same line as the .comm.
5184 This difference in syntax means the colon function will be called
5185 on the symbol before we arrive in pa_comm. colon will set a number
5186 of attributes of the symbol that need to be fixed here. In particular
5187 the value, section pointer, fragment pointer, flags, etc. What
5190 This also makes error detection all but impossible. */
5198 label_symbol_struct
*label_symbol
= pa_get_label ();
5201 symbol
= label_symbol
->lss_label
;
5206 size
= get_absolute_expression ();
5210 S_SET_VALUE (symbol
, size
);
5211 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5212 S_SET_EXTERNAL (symbol
);
5214 /* colon() has already set the frag to the current location in the
5215 current subspace; we need to reset the fragment to the zero address
5216 fragment. We also need to reset the segment pointer. */
5217 symbol_set_frag (symbol
, &zero_address_frag
);
5219 demand_empty_rest_of_line ();
5222 /* Process a .END pseudo-op. */
5228 demand_empty_rest_of_line ();
5231 /* Process a .ENTER pseudo-op. This is not supported. */
5237 /* We must have a valid space and subspace. */
5238 pa_check_current_space_and_subspace ();
5241 as_bad (_("The .ENTER pseudo-op is not supported"));
5242 demand_empty_rest_of_line ();
5245 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5252 /* We must have a valid space and subspace. */
5253 pa_check_current_space_and_subspace ();
5256 if (!within_procedure
)
5257 as_bad (_("Misplaced .entry. Ignored."));
5260 if (!callinfo_found
)
5261 as_bad (_("Missing .callinfo."));
5263 demand_empty_rest_of_line ();
5264 within_entry_exit
= TRUE
;
5267 /* SOM defers building of unwind descriptors until the link phase.
5268 The assembler is responsible for creating an R_ENTRY relocation
5269 to mark the beginning of a region and hold the unwind bits, and
5270 for creating an R_EXIT relocation to mark the end of the region.
5272 FIXME. ELF should be using the same conventions! The problem
5273 is an unwind requires too much relocation space. Hmmm. Maybe
5274 if we split the unwind bits up between the relocations which
5275 denote the entry and exit points. */
5276 if (last_call_info
->start_symbol
!= NULL
)
5278 char *where
= frag_more (0);
5280 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5281 NULL
, (offsetT
) 0, NULL
,
5282 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5283 (int *) &last_call_info
->ci_unwind
.descriptor
);
5288 /* Handle a .EQU pseudo-op. */
5294 label_symbol_struct
*label_symbol
= pa_get_label ();
5299 symbol
= label_symbol
->lss_label
;
5301 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
5303 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
5304 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
5309 as_bad (_(".REG must use a label"));
5311 as_bad (_(".EQU must use a label"));
5314 pa_undefine_label ();
5315 demand_empty_rest_of_line ();
5318 /* Helper function. Does processing for the end of a function. This
5319 usually involves creating some relocations or building special
5320 symbols to mark the end of the function. */
5327 where
= frag_more (0);
5330 /* Mark the end of the function, stuff away the location of the frag
5331 for the end of the function, and finally call pa_build_unwind_subspace
5332 to add an entry in the unwind table. */
5333 hppa_elf_mark_end_of_function ();
5334 pa_build_unwind_subspace (last_call_info
);
5336 /* SOM defers building of unwind descriptors until the link phase.
5337 The assembler is responsible for creating an R_ENTRY relocation
5338 to mark the beginning of a region and hold the unwind bits, and
5339 for creating an R_EXIT relocation to mark the end of the region.
5341 FIXME. ELF should be using the same conventions! The problem
5342 is an unwind requires too much relocation space. Hmmm. Maybe
5343 if we split the unwind bits up between the relocations which
5344 denote the entry and exit points. */
5345 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5347 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
5348 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
5352 /* Process a .EXIT pseudo-op. */
5359 /* We must have a valid space and subspace. */
5360 pa_check_current_space_and_subspace ();
5363 if (!within_procedure
)
5364 as_bad (_(".EXIT must appear within a procedure"));
5367 if (!callinfo_found
)
5368 as_bad (_("Missing .callinfo"));
5371 if (!within_entry_exit
)
5372 as_bad (_("No .ENTRY for this .EXIT"));
5375 within_entry_exit
= FALSE
;
5380 demand_empty_rest_of_line ();
5383 /* Process a .EXPORT directive. This makes functions external
5384 and provides information such as argument relocation entries
5394 name
= input_line_pointer
;
5395 c
= get_symbol_end ();
5396 /* Make sure the given symbol exists. */
5397 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5399 as_bad (_("Cannot define export symbol: %s\n"), name
);
5400 p
= input_line_pointer
;
5402 input_line_pointer
++;
5406 /* OK. Set the external bits and process argument relocations. */
5407 S_SET_EXTERNAL (symbol
);
5408 p
= input_line_pointer
;
5410 if (!is_end_of_statement ())
5412 input_line_pointer
++;
5413 pa_type_args (symbol
, 1);
5417 demand_empty_rest_of_line ();
5420 /* Helper function to process arguments to a .EXPORT pseudo-op. */
5423 pa_type_args (symbolP
, is_export
)
5428 unsigned int temp
, arg_reloc
;
5429 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5430 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5432 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5435 input_line_pointer
+= 8;
5436 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5437 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5438 type
= SYMBOL_TYPE_ABSOLUTE
;
5440 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5442 input_line_pointer
+= 4;
5443 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5444 instead one should be IMPORTing/EXPORTing ENTRY types.
5446 Complain if one tries to EXPORT a CODE type since that's never
5447 done. Both GCC and HP C still try to IMPORT CODE types, so
5448 silently fix them to be ENTRY types. */
5449 if (S_IS_FUNCTION (symbolP
))
5452 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5453 S_GET_NAME (symbolP
));
5455 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5456 type
= SYMBOL_TYPE_ENTRY
;
5460 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5461 type
= SYMBOL_TYPE_CODE
;
5464 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5466 input_line_pointer
+= 4;
5467 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5468 type
= SYMBOL_TYPE_DATA
;
5470 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5472 input_line_pointer
+= 5;
5473 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5474 type
= SYMBOL_TYPE_ENTRY
;
5476 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5478 input_line_pointer
+= 9;
5479 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5480 type
= SYMBOL_TYPE_MILLICODE
;
5482 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5484 input_line_pointer
+= 6;
5485 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5486 type
= SYMBOL_TYPE_PLABEL
;
5488 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5490 input_line_pointer
+= 8;
5491 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5492 type
= SYMBOL_TYPE_PRI_PROG
;
5494 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5496 input_line_pointer
+= 8;
5497 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5498 type
= SYMBOL_TYPE_SEC_PROG
;
5501 /* SOM requires much more information about symbol types
5502 than BFD understands. This is how we get this information
5503 to the SOM BFD backend. */
5504 #ifdef obj_set_symbol_type
5505 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5508 /* Now that the type of the exported symbol has been handled,
5509 handle any argument relocation information. */
5510 while (!is_end_of_statement ())
5512 if (*input_line_pointer
== ',')
5513 input_line_pointer
++;
5514 name
= input_line_pointer
;
5515 c
= get_symbol_end ();
5516 /* Argument sources. */
5517 if ((strncasecmp (name
, "argw", 4) == 0))
5519 p
= input_line_pointer
;
5521 input_line_pointer
++;
5522 temp
= atoi (name
+ 4);
5523 name
= input_line_pointer
;
5524 c
= get_symbol_end ();
5525 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5527 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5529 *input_line_pointer
= c
;
5531 /* The return value. */
5532 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5534 p
= input_line_pointer
;
5536 input_line_pointer
++;
5537 name
= input_line_pointer
;
5538 c
= get_symbol_end ();
5539 arg_reloc
= pa_build_arg_reloc (name
);
5541 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5543 *input_line_pointer
= c
;
5545 /* Privelege level. */
5546 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5548 p
= input_line_pointer
;
5550 input_line_pointer
++;
5551 temp
= atoi (input_line_pointer
);
5553 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5555 c
= get_symbol_end ();
5556 *input_line_pointer
= c
;
5560 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5561 p
= input_line_pointer
;
5564 if (!is_end_of_statement ())
5565 input_line_pointer
++;
5569 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5570 assembly file must either be defined in the assembly file, or
5571 explicitly IMPORTED from another. */
5580 name
= input_line_pointer
;
5581 c
= get_symbol_end ();
5583 symbol
= symbol_find (name
);
5584 /* Ugh. We might be importing a symbol defined earlier in the file,
5585 in which case all the code below will really screw things up
5586 (set the wrong segment, symbol flags & type, etc). */
5587 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5589 symbol
= symbol_find_or_make (name
);
5590 p
= input_line_pointer
;
5593 if (!is_end_of_statement ())
5595 input_line_pointer
++;
5596 pa_type_args (symbol
, 0);
5600 /* Sigh. To be compatable with the HP assembler and to help
5601 poorly written assembly code, we assign a type based on
5602 the the current segment. Note only BSF_FUNCTION really
5603 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5604 if (now_seg
== text_section
)
5605 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5607 /* If the section is undefined, then the symbol is undefined
5608 Since this is an import, leave the section undefined. */
5609 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5614 /* The symbol was already defined. Just eat everything up to
5615 the end of the current statement. */
5616 while (!is_end_of_statement ())
5617 input_line_pointer
++;
5620 demand_empty_rest_of_line ();
5623 /* Handle a .LABEL pseudo-op. */
5631 name
= input_line_pointer
;
5632 c
= get_symbol_end ();
5634 if (strlen (name
) > 0)
5637 p
= input_line_pointer
;
5642 as_warn (_("Missing label name on .LABEL"));
5645 if (!is_end_of_statement ())
5647 as_warn (_("extra .LABEL arguments ignored."));
5648 ignore_rest_of_line ();
5650 demand_empty_rest_of_line ();
5653 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5660 /* We must have a valid space and subspace. */
5661 pa_check_current_space_and_subspace ();
5664 as_bad (_("The .LEAVE pseudo-op is not supported"));
5665 demand_empty_rest_of_line ();
5668 /* Handle a .LEVEL pseudo-op. */
5676 level
= input_line_pointer
;
5677 if (strncmp (level
, "1.0", 3) == 0)
5679 input_line_pointer
+= 3;
5680 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5681 as_warn (_("could not set architecture and machine"));
5683 else if (strncmp (level
, "1.1", 3) == 0)
5685 input_line_pointer
+= 3;
5686 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5687 as_warn (_("could not set architecture and machine"));
5689 else if (strncmp (level
, "2.0w", 4) == 0)
5691 input_line_pointer
+= 4;
5692 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5693 as_warn (_("could not set architecture and machine"));
5695 else if (strncmp (level
, "2.0", 3) == 0)
5697 input_line_pointer
+= 3;
5698 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5699 as_warn (_("could not set architecture and machine"));
5703 as_bad (_("Unrecognized .LEVEL argument\n"));
5704 ignore_rest_of_line ();
5706 demand_empty_rest_of_line ();
5709 /* Handle a .ORIGIN pseudo-op. */
5716 /* We must have a valid space and subspace. */
5717 pa_check_current_space_and_subspace ();
5721 pa_undefine_label ();
5724 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5725 is for static functions. FIXME. Should share more code with .EXPORT. */
5734 name
= input_line_pointer
;
5735 c
= get_symbol_end ();
5737 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5739 as_bad (_("Cannot define static symbol: %s\n"), name
);
5740 p
= input_line_pointer
;
5742 input_line_pointer
++;
5746 S_CLEAR_EXTERNAL (symbol
);
5747 p
= input_line_pointer
;
5749 if (!is_end_of_statement ())
5751 input_line_pointer
++;
5752 pa_type_args (symbol
, 0);
5756 demand_empty_rest_of_line ();
5759 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5760 of a procedure from a syntatical point of view. */
5766 struct call_info
*call_info
;
5769 /* We must have a valid space and subspace. */
5770 pa_check_current_space_and_subspace ();
5773 if (within_procedure
)
5774 as_fatal (_("Nested procedures"));
5776 /* Reset global variables for new procedure. */
5777 callinfo_found
= FALSE
;
5778 within_procedure
= TRUE
;
5780 /* Create another call_info structure. */
5781 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5784 as_fatal (_("Cannot allocate unwind descriptor\n"));
5786 memset (call_info
, 0, sizeof (struct call_info
));
5788 call_info
->ci_next
= NULL
;
5790 if (call_info_root
== NULL
)
5792 call_info_root
= call_info
;
5793 last_call_info
= call_info
;
5797 last_call_info
->ci_next
= call_info
;
5798 last_call_info
= call_info
;
5801 /* set up defaults on call_info structure */
5803 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5804 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5805 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5807 /* If we got a .PROC pseudo-op, we know that the function is defined
5808 locally. Make sure it gets into the symbol table. */
5810 label_symbol_struct
*label_symbol
= pa_get_label ();
5814 if (label_symbol
->lss_label
)
5816 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5817 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5820 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5823 last_call_info
->start_symbol
= NULL
;
5826 demand_empty_rest_of_line ();
5829 /* Process the syntatical end of a procedure. Make sure all the
5830 appropriate pseudo-ops were found within the procedure. */
5838 /* We must have a valid space and subspace. */
5839 pa_check_current_space_and_subspace ();
5842 /* If we are within a procedure definition, make sure we've
5843 defined a label for the procedure; handle case where the
5844 label was defined after the .PROC directive.
5846 Note there's not need to diddle with the segment or fragment
5847 for the label symbol in this case. We have already switched
5848 into the new $CODE$ subspace at this point. */
5849 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5851 label_symbol_struct
*label_symbol
= pa_get_label ();
5855 if (label_symbol
->lss_label
)
5857 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5858 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5861 /* Also handle allocation of a fixup to hold the unwind
5862 information when the label appears after the proc/procend. */
5863 if (within_entry_exit
)
5865 char *where
= frag_more (0);
5867 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5868 NULL
, (offsetT
) 0, NULL
,
5869 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5870 (int *) &last_call_info
->ci_unwind
.descriptor
);
5875 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5878 as_bad (_("Missing function name for .PROC"));
5881 if (!within_procedure
)
5882 as_bad (_("misplaced .procend"));
5884 if (!callinfo_found
)
5885 as_bad (_("Missing .callinfo for this procedure"));
5887 if (within_entry_exit
)
5888 as_bad (_("Missing .EXIT for a .ENTRY"));
5891 /* ELF needs to mark the end of each function so that it can compute
5892 the size of the function (apparently its needed in the symbol table). */
5893 hppa_elf_mark_end_of_function ();
5896 within_procedure
= FALSE
;
5897 demand_empty_rest_of_line ();
5898 pa_undefine_label ();
5901 /* If VALUE is an exact power of two between zero and 2^31, then
5902 return log2 (VALUE). Else return -1. */
5910 while ((1 << shift
) != value
&& shift
< 32)
5921 /* Check to make sure we have a valid space and subspace. */
5924 pa_check_current_space_and_subspace ()
5926 if (current_space
== NULL
)
5927 as_fatal (_("Not in a space.\n"));
5929 if (current_subspace
== NULL
)
5930 as_fatal (_("Not in a subspace.\n"));
5933 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5934 then create a new space entry to hold the information specified
5935 by the parameters to the .SPACE directive. */
5937 static sd_chain_struct
*
5938 pa_parse_space_stmt (space_name
, create_flag
)
5942 char *name
, *ptemp
, c
;
5943 char loadable
, defined
, private, sort
;
5945 asection
*seg
= NULL
;
5946 sd_chain_struct
*space
;
5948 /* load default values */
5954 if (strcmp (space_name
, "$TEXT$") == 0)
5956 seg
= pa_def_spaces
[0].segment
;
5957 defined
= pa_def_spaces
[0].defined
;
5958 private = pa_def_spaces
[0].private;
5959 sort
= pa_def_spaces
[0].sort
;
5960 spnum
= pa_def_spaces
[0].spnum
;
5962 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5964 seg
= pa_def_spaces
[1].segment
;
5965 defined
= pa_def_spaces
[1].defined
;
5966 private = pa_def_spaces
[1].private;
5967 sort
= pa_def_spaces
[1].sort
;
5968 spnum
= pa_def_spaces
[1].spnum
;
5971 if (!is_end_of_statement ())
5973 print_errors
= FALSE
;
5974 ptemp
= input_line_pointer
+ 1;
5975 /* First see if the space was specified as a number rather than
5976 as a name. According to the PA assembly manual the rest of
5977 the line should be ignored. */
5978 temp
= pa_parse_number (&ptemp
, 0);
5982 input_line_pointer
= ptemp
;
5986 while (!is_end_of_statement ())
5988 input_line_pointer
++;
5989 name
= input_line_pointer
;
5990 c
= get_symbol_end ();
5991 if ((strncasecmp (name
, "spnum", 5) == 0))
5993 *input_line_pointer
= c
;
5994 input_line_pointer
++;
5995 spnum
= get_absolute_expression ();
5997 else if ((strncasecmp (name
, "sort", 4) == 0))
5999 *input_line_pointer
= c
;
6000 input_line_pointer
++;
6001 sort
= get_absolute_expression ();
6003 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6005 *input_line_pointer
= c
;
6008 else if ((strncasecmp (name
, "notdefined", 10) == 0))
6010 *input_line_pointer
= c
;
6013 else if ((strncasecmp (name
, "private", 7) == 0))
6015 *input_line_pointer
= c
;
6020 as_bad (_("Invalid .SPACE argument"));
6021 *input_line_pointer
= c
;
6022 if (!is_end_of_statement ())
6023 input_line_pointer
++;
6027 print_errors
= TRUE
;
6030 if (create_flag
&& seg
== NULL
)
6031 seg
= subseg_new (space_name
, 0);
6033 /* If create_flag is nonzero, then create the new space with
6034 the attributes computed above. Else set the values in
6035 an already existing space -- this can only happen for
6036 the first occurence of a built-in space. */
6038 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
6039 private, sort
, seg
, 1);
6042 space
= is_defined_space (space_name
);
6043 SPACE_SPNUM (space
) = spnum
;
6044 SPACE_DEFINED (space
) = defined
& 1;
6045 SPACE_USER_DEFINED (space
) = 1;
6048 #ifdef obj_set_section_attributes
6049 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6055 /* Handle a .SPACE pseudo-op; this switches the current space to the
6056 given space, creating the new space if necessary. */
6062 char *name
, c
, *space_name
, *save_s
;
6064 sd_chain_struct
*sd_chain
;
6066 if (within_procedure
)
6068 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6069 ignore_rest_of_line ();
6073 /* Check for some of the predefined spaces. FIXME: most of the code
6074 below is repeated several times, can we extract the common parts
6075 and place them into a subroutine or something similar? */
6076 /* FIXME Is this (and the next IF stmt) really right?
6077 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6078 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
6080 input_line_pointer
+= 6;
6081 sd_chain
= is_defined_space ("$TEXT$");
6082 if (sd_chain
== NULL
)
6083 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
6084 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6085 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
6087 current_space
= sd_chain
;
6088 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
6090 = pa_subsegment_to_subspace (text_section
,
6091 sd_chain
->sd_last_subseg
);
6092 demand_empty_rest_of_line ();
6095 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
6097 input_line_pointer
+= 9;
6098 sd_chain
= is_defined_space ("$PRIVATE$");
6099 if (sd_chain
== NULL
)
6100 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
6101 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6102 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
6104 current_space
= sd_chain
;
6105 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
6107 = pa_subsegment_to_subspace (data_section
,
6108 sd_chain
->sd_last_subseg
);
6109 demand_empty_rest_of_line ();
6112 if (!strncasecmp (input_line_pointer
,
6113 GDB_DEBUG_SPACE_NAME
,
6114 strlen (GDB_DEBUG_SPACE_NAME
)))
6116 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
6117 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
6118 if (sd_chain
== NULL
)
6119 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
6120 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6121 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
6123 current_space
= sd_chain
;
6126 asection
*gdb_section
6127 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
6129 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
6131 = pa_subsegment_to_subspace (gdb_section
,
6132 sd_chain
->sd_last_subseg
);
6134 demand_empty_rest_of_line ();
6138 /* It could be a space specified by number. */
6140 save_s
= input_line_pointer
;
6141 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
6143 if ((sd_chain
= pa_find_space_by_number (temp
)))
6145 current_space
= sd_chain
;
6147 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6149 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6150 sd_chain
->sd_last_subseg
);
6151 demand_empty_rest_of_line ();
6156 /* Not a number, attempt to create a new space. */
6158 input_line_pointer
= save_s
;
6159 name
= input_line_pointer
;
6160 c
= get_symbol_end ();
6161 space_name
= xmalloc (strlen (name
) + 1);
6162 strcpy (space_name
, name
);
6163 *input_line_pointer
= c
;
6165 sd_chain
= pa_parse_space_stmt (space_name
, 1);
6166 current_space
= sd_chain
;
6168 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6169 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6170 sd_chain
->sd_last_subseg
);
6171 demand_empty_rest_of_line ();
6175 /* Switch to a new space. (I think). FIXME. */
6184 sd_chain_struct
*space
;
6186 name
= input_line_pointer
;
6187 c
= get_symbol_end ();
6188 space
= is_defined_space (name
);
6192 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
6195 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
6197 *input_line_pointer
= c
;
6198 demand_empty_rest_of_line ();
6201 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6202 given subspace, creating the new subspace if necessary.
6204 FIXME. Should mirror pa_space more closely, in particular how
6205 they're broken up into subroutines. */
6208 pa_subspace (create_new
)
6211 char *name
, *ss_name
, c
;
6212 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
6213 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
6214 sd_chain_struct
*space
;
6215 ssd_chain_struct
*ssd
;
6218 if (current_space
== NULL
)
6219 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6221 if (within_procedure
)
6223 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6224 ignore_rest_of_line ();
6228 name
= input_line_pointer
;
6229 c
= get_symbol_end ();
6230 ss_name
= xmalloc (strlen (name
) + 1);
6231 strcpy (ss_name
, name
);
6232 *input_line_pointer
= c
;
6234 /* Load default values. */
6246 space
= current_space
;
6250 ssd
= is_defined_subspace (ss_name
);
6251 /* Allow user to override the builtin attributes of subspaces. But
6252 only allow the attributes to be changed once! */
6253 if (ssd
&& SUBSPACE_DEFINED (ssd
))
6255 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
6256 current_subspace
= ssd
;
6257 if (!is_end_of_statement ())
6258 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6259 demand_empty_rest_of_line ();
6264 /* A new subspace. Load default values if it matches one of
6265 the builtin subspaces. */
6267 while (pa_def_subspaces
[i
].name
)
6269 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
6271 loadable
= pa_def_subspaces
[i
].loadable
;
6272 common
= pa_def_subspaces
[i
].common
;
6273 dup_common
= pa_def_subspaces
[i
].dup_common
;
6274 code_only
= pa_def_subspaces
[i
].code_only
;
6275 zero
= pa_def_subspaces
[i
].zero
;
6276 space_index
= pa_def_subspaces
[i
].space_index
;
6277 alignment
= pa_def_subspaces
[i
].alignment
;
6278 quadrant
= pa_def_subspaces
[i
].quadrant
;
6279 access
= pa_def_subspaces
[i
].access
;
6280 sort
= pa_def_subspaces
[i
].sort
;
6287 /* We should be working with a new subspace now. Fill in
6288 any information as specified by the user. */
6289 if (!is_end_of_statement ())
6291 input_line_pointer
++;
6292 while (!is_end_of_statement ())
6294 name
= input_line_pointer
;
6295 c
= get_symbol_end ();
6296 if ((strncasecmp (name
, "quad", 4) == 0))
6298 *input_line_pointer
= c
;
6299 input_line_pointer
++;
6300 quadrant
= get_absolute_expression ();
6302 else if ((strncasecmp (name
, "align", 5) == 0))
6304 *input_line_pointer
= c
;
6305 input_line_pointer
++;
6306 alignment
= get_absolute_expression ();
6307 if (log2 (alignment
) == -1)
6309 as_bad (_("Alignment must be a power of 2"));
6313 else if ((strncasecmp (name
, "access", 6) == 0))
6315 *input_line_pointer
= c
;
6316 input_line_pointer
++;
6317 access
= get_absolute_expression ();
6319 else if ((strncasecmp (name
, "sort", 4) == 0))
6321 *input_line_pointer
= c
;
6322 input_line_pointer
++;
6323 sort
= get_absolute_expression ();
6325 else if ((strncasecmp (name
, "code_only", 9) == 0))
6327 *input_line_pointer
= c
;
6330 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6332 *input_line_pointer
= c
;
6335 else if ((strncasecmp (name
, "common", 6) == 0))
6337 *input_line_pointer
= c
;
6340 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
6342 *input_line_pointer
= c
;
6345 else if ((strncasecmp (name
, "zero", 4) == 0))
6347 *input_line_pointer
= c
;
6350 else if ((strncasecmp (name
, "first", 5) == 0))
6351 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
6353 as_bad (_("Invalid .SUBSPACE argument"));
6354 if (!is_end_of_statement ())
6355 input_line_pointer
++;
6359 /* Compute a reasonable set of BFD flags based on the information
6360 in the .subspace directive. */
6361 applicable
= bfd_applicable_section_flags (stdoutput
);
6364 flags
|= (SEC_ALLOC
| SEC_LOAD
);
6367 if (common
|| dup_common
)
6368 flags
|= SEC_IS_COMMON
;
6370 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
6372 /* This is a zero-filled subspace (eg BSS). */
6374 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
6376 applicable
&= flags
;
6378 /* If this is an existing subspace, then we want to use the
6379 segment already associated with the subspace.
6381 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6382 lots of sections. It might be a problem in the PA ELF
6383 code, I do not know yet. For now avoid creating anything
6384 but the "standard" sections for ELF. */
6386 section
= subseg_force_new (ss_name
, 0);
6388 section
= ssd
->ssd_seg
;
6390 section
= subseg_new (ss_name
, 0);
6393 seg_info (section
)->bss
= 1;
6395 /* Now set the flags. */
6396 bfd_set_section_flags (stdoutput
, section
, applicable
);
6398 /* Record any alignment request for this section. */
6399 record_alignment (section
, log2 (alignment
));
6401 /* Set the starting offset for this section. */
6402 bfd_set_section_vma (stdoutput
, section
,
6403 pa_subspace_start (space
, quadrant
));
6405 /* Now that all the flags are set, update an existing subspace,
6406 or create a new one. */
6409 current_subspace
= update_subspace (space
, ss_name
, loadable
,
6410 code_only
, common
, dup_common
,
6411 sort
, zero
, access
, space_index
,
6412 alignment
, quadrant
,
6415 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
6417 dup_common
, zero
, sort
,
6418 access
, space_index
,
6419 alignment
, quadrant
, section
);
6421 demand_empty_rest_of_line ();
6422 current_subspace
->ssd_seg
= section
;
6423 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6425 SUBSPACE_DEFINED (current_subspace
) = 1;
6429 /* Create default space and subspace dictionaries. */
6436 space_dict_root
= NULL
;
6437 space_dict_last
= NULL
;
6440 while (pa_def_spaces
[i
].name
)
6444 /* Pick the right name to use for the new section. */
6445 name
= pa_def_spaces
[i
].name
;
6447 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6448 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6449 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6450 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6451 pa_def_spaces
[i
].segment
, 0);
6456 while (pa_def_subspaces
[i
].name
)
6459 int applicable
, subsegment
;
6460 asection
*segment
= NULL
;
6461 sd_chain_struct
*space
;
6463 /* Pick the right name for the new section and pick the right
6464 subsegment number. */
6465 name
= pa_def_subspaces
[i
].name
;
6468 /* Create the new section. */
6469 segment
= subseg_new (name
, subsegment
);
6472 /* For SOM we want to replace the standard .text, .data, and .bss
6473 sections with our own. We also want to set BFD flags for
6474 all the built-in subspaces. */
6475 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6477 text_section
= segment
;
6478 applicable
= bfd_applicable_section_flags (stdoutput
);
6479 bfd_set_section_flags (stdoutput
, segment
,
6480 applicable
& (SEC_ALLOC
| SEC_LOAD
6481 | SEC_RELOC
| SEC_CODE
6483 | SEC_HAS_CONTENTS
));
6485 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6487 data_section
= segment
;
6488 applicable
= bfd_applicable_section_flags (stdoutput
);
6489 bfd_set_section_flags (stdoutput
, segment
,
6490 applicable
& (SEC_ALLOC
| SEC_LOAD
6492 | SEC_HAS_CONTENTS
));
6496 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6498 bss_section
= segment
;
6499 applicable
= bfd_applicable_section_flags (stdoutput
);
6500 bfd_set_section_flags (stdoutput
, segment
,
6501 applicable
& SEC_ALLOC
);
6503 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6505 applicable
= bfd_applicable_section_flags (stdoutput
);
6506 bfd_set_section_flags (stdoutput
, segment
,
6507 applicable
& (SEC_ALLOC
| SEC_LOAD
6510 | SEC_HAS_CONTENTS
));
6512 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6514 applicable
= bfd_applicable_section_flags (stdoutput
);
6515 bfd_set_section_flags (stdoutput
, segment
,
6516 applicable
& (SEC_ALLOC
| SEC_LOAD
6519 | SEC_HAS_CONTENTS
));
6521 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6523 applicable
= bfd_applicable_section_flags (stdoutput
);
6524 bfd_set_section_flags (stdoutput
, segment
,
6525 applicable
& (SEC_ALLOC
| SEC_LOAD
6528 | SEC_HAS_CONTENTS
));
6531 /* Find the space associated with this subspace. */
6532 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6533 def_space_index
].segment
);
6536 as_fatal (_("Internal error: Unable to find containing space for %s."),
6537 pa_def_subspaces
[i
].name
);
6540 create_new_subspace (space
, name
,
6541 pa_def_subspaces
[i
].loadable
,
6542 pa_def_subspaces
[i
].code_only
,
6543 pa_def_subspaces
[i
].common
,
6544 pa_def_subspaces
[i
].dup_common
,
6545 pa_def_subspaces
[i
].zero
,
6546 pa_def_subspaces
[i
].sort
,
6547 pa_def_subspaces
[i
].access
,
6548 pa_def_subspaces
[i
].space_index
,
6549 pa_def_subspaces
[i
].alignment
,
6550 pa_def_subspaces
[i
].quadrant
,
6558 /* Create a new space NAME, with the appropriate flags as defined
6559 by the given parameters. */
6561 static sd_chain_struct
*
6562 create_new_space (name
, spnum
, loadable
, defined
, private,
6563 sort
, seg
, user_defined
)
6573 sd_chain_struct
*chain_entry
;
6575 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6577 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6580 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6581 strcpy (SPACE_NAME (chain_entry
), name
);
6582 SPACE_DEFINED (chain_entry
) = defined
;
6583 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6584 SPACE_SPNUM (chain_entry
) = spnum
;
6586 chain_entry
->sd_seg
= seg
;
6587 chain_entry
->sd_last_subseg
= -1;
6588 chain_entry
->sd_subspaces
= NULL
;
6589 chain_entry
->sd_next
= NULL
;
6591 /* Find spot for the new space based on its sort key. */
6592 if (!space_dict_last
)
6593 space_dict_last
= chain_entry
;
6595 if (space_dict_root
== NULL
)
6596 space_dict_root
= chain_entry
;
6599 sd_chain_struct
*chain_pointer
;
6600 sd_chain_struct
*prev_chain_pointer
;
6602 chain_pointer
= space_dict_root
;
6603 prev_chain_pointer
= NULL
;
6605 while (chain_pointer
)
6607 prev_chain_pointer
= chain_pointer
;
6608 chain_pointer
= chain_pointer
->sd_next
;
6611 /* At this point we've found the correct place to add the new
6612 entry. So add it and update the linked lists as appropriate. */
6613 if (prev_chain_pointer
)
6615 chain_entry
->sd_next
= chain_pointer
;
6616 prev_chain_pointer
->sd_next
= chain_entry
;
6620 space_dict_root
= chain_entry
;
6621 chain_entry
->sd_next
= chain_pointer
;
6624 if (chain_entry
->sd_next
== NULL
)
6625 space_dict_last
= chain_entry
;
6628 /* This is here to catch predefined spaces which do not get
6629 modified by the user's input. Another call is found at
6630 the bottom of pa_parse_space_stmt to handle cases where
6631 the user modifies a predefined space. */
6632 #ifdef obj_set_section_attributes
6633 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6639 /* Create a new subspace NAME, with the appropriate flags as defined
6640 by the given parameters.
6642 Add the new subspace to the subspace dictionary chain in numerical
6643 order as defined by the SORT entries. */
6645 static ssd_chain_struct
*
6646 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6647 dup_common
, is_zero
, sort
, access
, space_index
,
6648 alignment
, quadrant
, seg
)
6649 sd_chain_struct
*space
;
6651 int loadable
, code_only
, common
, dup_common
, is_zero
;
6659 ssd_chain_struct
*chain_entry
;
6661 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6663 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6665 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6666 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6668 /* Initialize subspace_defined. When we hit a .subspace directive
6669 we'll set it to 1 which "locks-in" the subspace attributes. */
6670 SUBSPACE_DEFINED (chain_entry
) = 0;
6672 chain_entry
->ssd_subseg
= 0;
6673 chain_entry
->ssd_seg
= seg
;
6674 chain_entry
->ssd_next
= NULL
;
6676 /* Find spot for the new subspace based on its sort key. */
6677 if (space
->sd_subspaces
== NULL
)
6678 space
->sd_subspaces
= chain_entry
;
6681 ssd_chain_struct
*chain_pointer
;
6682 ssd_chain_struct
*prev_chain_pointer
;
6684 chain_pointer
= space
->sd_subspaces
;
6685 prev_chain_pointer
= NULL
;
6687 while (chain_pointer
)
6689 prev_chain_pointer
= chain_pointer
;
6690 chain_pointer
= chain_pointer
->ssd_next
;
6693 /* Now we have somewhere to put the new entry. Insert it and update
6695 if (prev_chain_pointer
)
6697 chain_entry
->ssd_next
= chain_pointer
;
6698 prev_chain_pointer
->ssd_next
= chain_entry
;
6702 space
->sd_subspaces
= chain_entry
;
6703 chain_entry
->ssd_next
= chain_pointer
;
6707 #ifdef obj_set_subsection_attributes
6708 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6715 /* Update the information for the given subspace based upon the
6716 various arguments. Return the modified subspace chain entry. */
6718 static ssd_chain_struct
*
6719 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6720 zero
, access
, space_index
, alignment
, quadrant
, section
)
6721 sd_chain_struct
*space
;
6735 ssd_chain_struct
*chain_entry
;
6737 chain_entry
= is_defined_subspace (name
);
6739 #ifdef obj_set_subsection_attributes
6740 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6747 /* Return the space chain entry for the space with the name NAME or
6748 NULL if no such space exists. */
6750 static sd_chain_struct
*
6751 is_defined_space (name
)
6754 sd_chain_struct
*chain_pointer
;
6756 for (chain_pointer
= space_dict_root
;
6758 chain_pointer
= chain_pointer
->sd_next
)
6760 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6761 return chain_pointer
;
6764 /* No mapping from segment to space was found. Return NULL. */
6768 /* Find and return the space associated with the given seg. If no mapping
6769 from the given seg to a space is found, then return NULL.
6771 Unlike subspaces, the number of spaces is not expected to grow much,
6772 so a linear exhaustive search is OK here. */
6774 static sd_chain_struct
*
6775 pa_segment_to_space (seg
)
6778 sd_chain_struct
*space_chain
;
6780 /* Walk through each space looking for the correct mapping. */
6781 for (space_chain
= space_dict_root
;
6783 space_chain
= space_chain
->sd_next
)
6785 if (space_chain
->sd_seg
== seg
)
6789 /* Mapping was not found. Return NULL. */
6793 /* Return the space chain entry for the subspace with the name NAME or
6794 NULL if no such subspace exists.
6796 Uses a linear search through all the spaces and subspaces, this may
6797 not be appropriate if we ever being placing each function in its
6800 static ssd_chain_struct
*
6801 is_defined_subspace (name
)
6804 sd_chain_struct
*space_chain
;
6805 ssd_chain_struct
*subspace_chain
;
6807 /* Walk through each space. */
6808 for (space_chain
= space_dict_root
;
6810 space_chain
= space_chain
->sd_next
)
6812 /* Walk through each subspace looking for a name which matches. */
6813 for (subspace_chain
= space_chain
->sd_subspaces
;
6815 subspace_chain
= subspace_chain
->ssd_next
)
6816 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6817 return subspace_chain
;
6820 /* Subspace wasn't found. Return NULL. */
6824 /* Find and return the subspace associated with the given seg. If no
6825 mapping from the given seg to a subspace is found, then return NULL.
6827 If we ever put each procedure/function within its own subspace
6828 (to make life easier on the compiler and linker), then this will have
6829 to become more efficient. */
6831 static ssd_chain_struct
*
6832 pa_subsegment_to_subspace (seg
, subseg
)
6836 sd_chain_struct
*space_chain
;
6837 ssd_chain_struct
*subspace_chain
;
6839 /* Walk through each space. */
6840 for (space_chain
= space_dict_root
;
6842 space_chain
= space_chain
->sd_next
)
6844 if (space_chain
->sd_seg
== seg
)
6846 /* Walk through each subspace within each space looking for
6847 the correct mapping. */
6848 for (subspace_chain
= space_chain
->sd_subspaces
;
6850 subspace_chain
= subspace_chain
->ssd_next
)
6851 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6852 return subspace_chain
;
6856 /* No mapping from subsegment to subspace found. Return NULL. */
6860 /* Given a number, try and find a space with the name number.
6862 Return a pointer to a space dictionary chain entry for the space
6863 that was found or NULL on failure. */
6865 static sd_chain_struct
*
6866 pa_find_space_by_number (number
)
6869 sd_chain_struct
*space_chain
;
6871 for (space_chain
= space_dict_root
;
6873 space_chain
= space_chain
->sd_next
)
6875 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6879 /* No appropriate space found. Return NULL. */
6883 /* Return the starting address for the given subspace. If the starting
6884 address is unknown then return zero. */
6887 pa_subspace_start (space
, quadrant
)
6888 sd_chain_struct
*space
;
6891 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6892 is not correct for the PA OSF1 port. */
6893 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6895 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6902 /* FIXME. Needs documentation. */
6904 pa_next_subseg (space
)
6905 sd_chain_struct
*space
;
6908 space
->sd_last_subseg
++;
6909 return space
->sd_last_subseg
;
6913 /* Helper function for pa_stringer. Used to find the end of
6920 unsigned int c
= *s
& CHAR_MASK
;
6923 /* We must have a valid space and subspace. */
6924 pa_check_current_space_and_subspace ();
6938 /* Handle a .STRING type pseudo-op. */
6941 pa_stringer (append_zero
)
6944 char *s
, num_buf
[4];
6948 /* Preprocess the string to handle PA-specific escape sequences.
6949 For example, \xDD where DD is a hexidecimal number should be
6950 changed to \OOO where OOO is an octal number. */
6952 /* Skip the opening quote. */
6953 s
= input_line_pointer
+ 1;
6955 while (is_a_char (c
= pa_stringer_aux (s
++)))
6962 /* Handle \x<num>. */
6965 unsigned int number
;
6970 /* Get pas the 'x'. */
6972 for (num_digit
= 0, number
= 0, dg
= *s
;
6974 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6975 || (dg
>= 'A' && dg
<= 'F'));
6979 number
= number
* 16 + dg
- '0';
6980 else if (dg
>= 'a' && dg
<= 'f')
6981 number
= number
* 16 + dg
- 'a' + 10;
6983 number
= number
* 16 + dg
- 'A' + 10;
6993 sprintf (num_buf
, "%02o", number
);
6996 sprintf (num_buf
, "%03o", number
);
6999 for (i
= 0; i
<= num_digit
; i
++)
7000 s_start
[i
] = num_buf
[i
];
7004 /* This might be a "\"", skip over the escaped char. */
7011 stringer (append_zero
);
7012 pa_undefine_label ();
7015 /* Handle a .VERSION pseudo-op. */
7022 pa_undefine_label ();
7027 /* Handle a .COMPILER pseudo-op. */
7030 pa_compiler (unused
)
7033 obj_som_compiler (0);
7034 pa_undefine_label ();
7039 /* Handle a .COPYRIGHT pseudo-op. */
7042 pa_copyright (unused
)
7046 pa_undefine_label ();
7049 /* Just like a normal cons, but when finished we have to undefine
7050 the latest space label. */
7057 pa_undefine_label ();
7060 /* Switch to the data space. As usual delete our label. */
7067 current_space
= is_defined_space ("$PRIVATE$");
7069 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7072 pa_undefine_label ();
7075 /* Like float_cons, but we need to undefine our label. */
7078 pa_float_cons (float_type
)
7081 float_cons (float_type
);
7082 pa_undefine_label ();
7085 /* Like s_fill, but delete our label when finished. */
7092 /* We must have a valid space and subspace. */
7093 pa_check_current_space_and_subspace ();
7097 pa_undefine_label ();
7100 /* Like lcomm, but delete our label when finished. */
7103 pa_lcomm (needs_align
)
7107 /* We must have a valid space and subspace. */
7108 pa_check_current_space_and_subspace ();
7111 s_lcomm (needs_align
);
7112 pa_undefine_label ();
7115 /* Like lsym, but delete our label when finished. */
7122 /* We must have a valid space and subspace. */
7123 pa_check_current_space_and_subspace ();
7127 pa_undefine_label ();
7130 /* Switch to the text space. Like s_text, but delete our
7131 label when finished. */
7137 current_space
= is_defined_space ("$TEXT$");
7139 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7143 pa_undefine_label ();
7146 /* On the PA relocations which involve function symbols must not be
7147 adjusted. This so that the linker can know when/how to create argument
7148 relocation stubs for indirect calls and calls to static functions.
7150 "T" field selectors create DLT relative fixups for accessing
7151 globals and statics in PIC code; each DLT relative fixup creates
7152 an entry in the DLT table. The entries contain the address of
7153 the final target (eg accessing "foo" would create a DLT entry
7154 with the address of "foo").
7156 Unfortunately, the HP linker doesn't take into account any addend
7157 when generating the DLT; so accessing $LIT$+8 puts the address of
7158 $LIT$ into the DLT rather than the address of $LIT$+8.
7160 The end result is we can't perform relocation symbol reductions for
7161 any fixup which creates entries in the DLT (eg they use "T" field
7164 Reject reductions involving symbols with external scope; such
7165 reductions make life a living hell for object file editors.
7167 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7168 the code space. The SOM BFD backend doesn't know how to pull the
7169 right bits out of an instruction. */
7172 hppa_fix_adjustable (fixp
)
7175 struct hppa_fix_struct
*hppa_fix
;
7177 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7180 /* Reject reductions of symbols in 32bit relocs. */
7181 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
7184 /* Reject reductions of symbols in sym1-sym2 expressions when
7185 the fixup will occur in a CODE subspace.
7187 XXX FIXME: Long term we probably want to reject all of these;
7188 for example reducing in the debug section would lose if we ever
7189 supported using the optimizing hp linker. */
7192 && (hppa_fix
->segment
->flags
& SEC_CODE
))
7194 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
7195 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
7199 /* We can't adjust any relocs that use LR% and RR% field selectors.
7200 That confuses the HP linker. */
7201 if (hppa_fix
->fx_r_field
== e_lrsel
7202 || hppa_fix
->fx_r_field
== e_rrsel
7203 || hppa_fix
->fx_r_field
== e_nlrsel
)
7207 /* Reject reductions of symbols in DLT relative relocs,
7208 relocations with plabels. */
7209 if (hppa_fix
->fx_r_field
== e_tsel
7210 || hppa_fix
->fx_r_field
== e_ltsel
7211 || hppa_fix
->fx_r_field
== e_rtsel
7212 || hppa_fix
->fx_r_field
== e_psel
7213 || hppa_fix
->fx_r_field
== e_rpsel
7214 || hppa_fix
->fx_r_field
== e_lpsel
)
7217 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
7220 /* Reject absolute calls (jumps). */
7221 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
7224 /* Reject reductions of function symbols. */
7225 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
7231 /* Return nonzero if the fixup in FIXP will require a relocation,
7232 even it if appears that the fixup could be completely handled
7236 hppa_force_relocation (fixp
)
7239 struct hppa_fix_struct
*hppa_fixp
;
7242 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7244 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
7245 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
7246 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
7247 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
7248 || fixp
->fx_r_type
== R_HPPA_END_TRY
7249 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
7250 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
7254 #define arg_reloc_stub_needed(CALLER, CALLEE) \
7255 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7258 /* It is necessary to force PC-relative calls/jumps to have a relocation
7259 entry if they're going to need either a argument relocation or long
7260 call stub. FIXME. Can't we need the same for absolute calls? */
7261 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
7262 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
7263 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
7264 hppa_fixp
->fx_arg_reloc
)))
7267 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
7268 - md_pcrel_from (fixp
));
7269 /* Now check and see if we're going to need a long-branch stub. */
7270 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
7271 && (distance
> 262143 || distance
< -262144))
7274 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
7276 #undef arg_reloc_stub_needed
7278 /* No need (yet) to force another relocations to be emitted. */
7282 /* Now for some ELF specific code. FIXME. */
7284 /* Mark the end of a function so that it's possible to compute
7285 the size of the function in hppa_elf_final_processing. */
7288 hppa_elf_mark_end_of_function ()
7290 /* ELF does not have EXIT relocations. All we do is create a
7291 temporary symbol marking the end of the function. */
7292 char *name
= (char *)
7293 xmalloc (strlen ("L$\001end_") +
7294 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
7300 strcpy (name
, "L$\001end_");
7301 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
7303 /* If we have a .exit followed by a .procend, then the
7304 symbol will have already been defined. */
7305 symbolP
= symbol_find (name
);
7308 /* The symbol has already been defined! This can
7309 happen if we have a .exit followed by a .procend.
7311 This is *not* an error. All we want to do is free
7312 the memory we just allocated for the name and continue. */
7317 /* symbol value should be the offset of the
7318 last instruction of the function */
7319 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
7323 S_CLEAR_EXTERNAL (symbolP
);
7324 symbol_table_insert (symbolP
);
7328 last_call_info
->end_symbol
= symbolP
;
7330 as_bad (_("Symbol '%s' could not be created."), name
);
7334 as_bad (_("No memory for symbol name."));
7338 /* For ELF, this function serves one purpose: to setup the st_size
7339 field of STT_FUNC symbols. To do this, we need to scan the
7340 call_info structure list, determining st_size in by taking the
7341 difference in the address of the beginning/end marker symbols. */
7344 elf_hppa_final_processing ()
7346 struct call_info
*call_info_pointer
;
7348 for (call_info_pointer
= call_info_root
;
7350 call_info_pointer
= call_info_pointer
->ci_next
)
7352 elf_symbol_type
*esym
7353 = ((elf_symbol_type
*)
7354 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
7355 esym
->internal_elf_sym
.st_size
=
7356 S_GET_VALUE (call_info_pointer
->end_symbol
)
7357 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;