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
;
720 /* Nonzero when strict syntax checking is enabled. Zero otherwise.
722 Each opcode in the table has a flag which indicates whether or not
723 strict syntax checking should be enabled for that instruction. */
724 static int strict
= 0;
727 /* A dummy bfd symbol so that all relocations have symbols of some kind. */
728 static symbolS
*dummy_symbol
;
731 /* Nonzero if errors are to be printed. */
732 static int print_errors
= 1;
734 /* List of registers that are pre-defined:
736 Each general register has one predefined name of the form
737 %r<REGNUM> which has the value <REGNUM>.
739 Space and control registers are handled in a similar manner,
740 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
742 Likewise for the floating point registers, but of the form
743 %fr<REGNUM>. Floating point registers have additional predefined
744 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
745 again have the value <REGNUM>.
747 Many registers also have synonyms:
749 %r26 - %r23 have %arg0 - %arg3 as synonyms
750 %r28 - %r29 have %ret0 - %ret1 as synonyms
751 %r30 has %sp as a synonym
752 %r27 has %dp as a synonym
753 %r2 has %rp as a synonym
755 Almost every control register has a synonym; they are not listed
758 The table is sorted. Suitable for searching by a binary search. */
760 static const struct pd_reg pre_defined_registers
[] =
960 /* This table is sorted by order of the length of the string. This is
961 so we check for <> before we check for <. If we had a <> and checked
962 for < first, we would get a false match. */
963 static const struct fp_cond_map fp_cond_map
[] =
999 static const struct selector_entry selector_table
[] =
1024 /* default space and subspace dictionaries */
1026 #define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1027 #define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1029 /* pre-defined subsegments (subspaces) for the HPPA. */
1030 #define SUBSEG_CODE 0
1031 #define SUBSEG_LIT 1
1032 #define SUBSEG_MILLI 2
1033 #define SUBSEG_DATA 0
1034 #define SUBSEG_BSS 2
1035 #define SUBSEG_UNWIND 3
1036 #define SUBSEG_GDB_STRINGS 0
1037 #define SUBSEG_GDB_SYMBOLS 1
1039 static struct default_subspace_dict pa_def_subspaces
[] =
1041 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE
},
1042 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA
},
1043 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT
},
1044 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI
},
1045 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS
},
1046 {NULL
, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1049 static struct default_space_dict pa_def_spaces
[] =
1051 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL
},
1052 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL
},
1053 {NULL
, 0, 0, 0, 0, 0, ASEC_NULL
}
1056 /* Misc local definitions used by the assembler. */
1058 /* These macros are used to maintain spaces/subspaces. */
1059 #define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1060 #define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1061 #define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1062 #define SPACE_NAME(space_chain) (space_chain)->sd_name
1064 #define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1065 #define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1068 /* Return nonzero if the string pointed to by S potentially represents
1069 a right or left half of a FP register */
1070 #define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1071 #define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1073 /* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1074 main loop after insertion. */
1076 #define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1078 ((OPCODE) |= (FIELD) << (START)); \
1082 /* Simple range checking for FIELD againt HIGH and LOW bounds.
1083 IGNORE is used to suppress the error message. */
1085 #define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1087 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1090 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1096 #define is_DP_relative(exp) \
1097 ((exp).X_op == O_subtract \
1098 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
1100 #define is_PC_relative(exp) \
1101 ((exp).X_op == O_subtract \
1102 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
1104 /* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1105 always be able to reduce the expression to a constant, so we don't
1106 need real complex handling yet. */
1107 #define is_complex(exp) \
1108 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1110 /* Actual functions to implement the PA specific code for the assembler. */
1112 /* Called before writing the object file. Make sure entry/exit and
1113 proc/procend pairs match. */
1118 if (within_entry_exit
)
1119 as_fatal (_("Missing .exit\n"));
1121 if (within_procedure
)
1122 as_fatal (_("Missing .procend\n"));
1125 /* Returns a pointer to the label_symbol_struct for the current space.
1126 or NULL if no label_symbol_struct exists for the current space. */
1128 static label_symbol_struct
*
1131 label_symbol_struct
*label_chain
;
1133 for (label_chain
= label_symbols_rootp
;
1135 label_chain
= label_chain
->lss_next
)
1138 if (current_space
== label_chain
->lss_space
&& label_chain
->lss_label
)
1142 if (now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
)
1150 /* Defines a label for the current space. If one is already defined,
1151 this function will replace it with the new label. */
1154 pa_define_label (symbol
)
1157 label_symbol_struct
*label_chain
= pa_get_label ();
1160 label_chain
->lss_label
= symbol
;
1163 /* Create a new label entry and add it to the head of the chain. */
1165 = (label_symbol_struct
*) xmalloc (sizeof (label_symbol_struct
));
1166 label_chain
->lss_label
= symbol
;
1168 label_chain
->lss_space
= current_space
;
1171 label_chain
->lss_segment
= now_seg
;
1173 label_chain
->lss_next
= NULL
;
1175 if (label_symbols_rootp
)
1176 label_chain
->lss_next
= label_symbols_rootp
;
1178 label_symbols_rootp
= label_chain
;
1182 /* Removes a label definition for the current space.
1183 If there is no label_symbol_struct entry, then no action is taken. */
1186 pa_undefine_label ()
1188 label_symbol_struct
*label_chain
;
1189 label_symbol_struct
*prev_label_chain
= NULL
;
1191 for (label_chain
= label_symbols_rootp
;
1193 label_chain
= label_chain
->lss_next
)
1197 && current_space
== label_chain
->lss_space
&& label_chain
->lss_label
1200 && now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
1204 /* Remove the label from the chain and free its memory. */
1205 if (prev_label_chain
)
1206 prev_label_chain
->lss_next
= label_chain
->lss_next
;
1208 label_symbols_rootp
= label_chain
->lss_next
;
1213 prev_label_chain
= label_chain
;
1218 /* An HPPA-specific version of fix_new. This is required because the HPPA
1219 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1220 results in the creation of an instance of an hppa_fix_struct. An
1221 hppa_fix_struct stores the extra information along with a pointer to the
1222 original fixS. This is attached to the original fixup via the
1223 tc_fix_data field. */
1226 fix_new_hppa (frag
, where
, size
, add_symbol
, offset
, exp
, pcrel
,
1227 r_type
, r_field
, r_format
, arg_reloc
, unwind_bits
)
1231 symbolS
*add_symbol
;
1235 bfd_reloc_code_real_type r_type
;
1236 enum hppa_reloc_field_selector_type_alt r_field
;
1243 struct hppa_fix_struct
*hppa_fix
= (struct hppa_fix_struct
*)
1244 obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
1247 new_fix
= fix_new_exp (frag
, where
, size
, exp
, pcrel
, r_type
);
1249 new_fix
= fix_new (frag
, where
, size
, add_symbol
, offset
, pcrel
, r_type
);
1250 new_fix
->tc_fix_data
= (void *) hppa_fix
;
1251 hppa_fix
->fx_r_type
= r_type
;
1252 hppa_fix
->fx_r_field
= r_field
;
1253 hppa_fix
->fx_r_format
= r_format
;
1254 hppa_fix
->fx_arg_reloc
= arg_reloc
;
1255 hppa_fix
->segment
= now_seg
;
1257 if (r_type
== R_ENTRY
|| r_type
== R_EXIT
)
1258 new_fix
->fx_offset
= *unwind_bits
;
1261 /* foo-$global$ is used to access non-automatic storage. $global$
1262 is really just a marker and has served its purpose, so eliminate
1263 it now so as not to confuse write.c. */
1264 if (new_fix
->fx_subsy
1265 && !strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$global$"))
1266 new_fix
->fx_subsy
= NULL
;
1269 /* Parse a .byte, .word, .long expression for the HPPA. Called by
1270 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1273 parse_cons_expression_hppa (exp
)
1276 hppa_field_selector
= pa_chk_field_selector (&input_line_pointer
);
1280 /* This fix_new is called by cons via TC_CONS_FIX_NEW.
1281 hppa_field_selector is set by the parse_cons_expression_hppa. */
1284 cons_fix_new_hppa (frag
, where
, size
, exp
)
1290 unsigned int rel_type
;
1292 /* Get a base relocation type. */
1293 if (is_DP_relative (*exp
))
1294 rel_type
= R_HPPA_GOTOFF
;
1295 else if (is_complex (*exp
))
1296 rel_type
= R_HPPA_COMPLEX
;
1300 if (hppa_field_selector
!= e_psel
&& hppa_field_selector
!= e_fsel
)
1301 as_warn (_("Invalid field selector. Assuming F%%."));
1303 fix_new_hppa (frag
, where
, size
,
1304 (symbolS
*) NULL
, (offsetT
) 0, exp
, 0, rel_type
,
1305 hppa_field_selector
, size
* 8, 0, NULL
);
1307 /* Reset field selector to its default state. */
1308 hppa_field_selector
= 0;
1311 /* This function is called once, at assembler startup time. It should
1312 set up all the tables, etc. that the MD part of the assembler will need. */
1317 const char *retval
= NULL
;
1321 last_call_info
= NULL
;
1322 call_info_root
= NULL
;
1324 /* Set the default machine type. */
1325 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
1326 as_warn (_("could not set architecture and machine"));
1328 /* Folding of text and data segments fails miserably on the PA.
1329 Warn user and disable "-R" option. */
1330 if (flag_readonly_data_in_text
)
1332 as_warn (_("-R option not supported on this target."));
1333 flag_readonly_data_in_text
= 0;
1340 op_hash
= hash_new ();
1342 while (i
< NUMOPCODES
)
1344 const char *name
= pa_opcodes
[i
].name
;
1345 retval
= hash_insert (op_hash
, name
, (struct pa_opcode
*) &pa_opcodes
[i
]);
1346 if (retval
!= NULL
&& *retval
!= '\0')
1348 as_fatal (_("Internal error: can't hash `%s': %s\n"), name
, retval
);
1353 if ((pa_opcodes
[i
].match
& pa_opcodes
[i
].mask
)
1354 != pa_opcodes
[i
].match
)
1356 fprintf (stderr
, _("internal error: losing opcode: `%s' \"%s\"\n"),
1357 pa_opcodes
[i
].name
, pa_opcodes
[i
].args
);
1362 while (i
< NUMOPCODES
&& !strcmp (pa_opcodes
[i
].name
, name
));
1366 as_fatal (_("Broken assembler. No assembly attempted."));
1369 /* SOM will change text_section. To make sure we never put
1370 anything into the old one switch to the new one now. */
1371 subseg_set (text_section
, 0);
1375 dummy_symbol
= symbol_find_or_make ("L$dummy");
1376 S_SET_SEGMENT (dummy_symbol
, text_section
);
1377 /* Force the symbol to be converted to a real symbol. */
1378 (void) symbol_get_bfdsym (dummy_symbol
);
1382 /* Assemble a single instruction storing it into a frag. */
1389 /* The had better be something to assemble. */
1392 /* If we are within a procedure definition, make sure we've
1393 defined a label for the procedure; handle case where the
1394 label was defined after the .PROC directive.
1396 Note there's not need to diddle with the segment or fragment
1397 for the label symbol in this case. We have already switched
1398 into the new $CODE$ subspace at this point. */
1399 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
1401 label_symbol_struct
*label_symbol
= pa_get_label ();
1405 if (label_symbol
->lss_label
)
1407 last_call_info
->start_symbol
= label_symbol
->lss_label
;
1408 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
1411 /* Also handle allocation of a fixup to hold the unwind
1412 information when the label appears after the proc/procend. */
1413 if (within_entry_exit
)
1415 char *where
= frag_more (0);
1417 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
1418 NULL
, (offsetT
) 0, NULL
,
1419 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
1420 (int *)&last_call_info
->ci_unwind
.descriptor
);
1425 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1428 as_bad (_("Missing function name for .PROC"));
1431 /* Assemble the instruction. Results are saved into "the_insn". */
1434 /* Get somewhere to put the assembled instrution. */
1437 /* Output the opcode. */
1438 md_number_to_chars (to
, the_insn
.opcode
, 4);
1440 /* If necessary output more stuff. */
1441 if (the_insn
.reloc
!= R_HPPA_NONE
)
1442 fix_new_hppa (frag_now
, (to
- frag_now
->fr_literal
), 4, NULL
,
1443 (offsetT
) 0, &the_insn
.exp
, the_insn
.pcrel
,
1444 the_insn
.reloc
, the_insn
.field_selector
,
1445 the_insn
.format
, the_insn
.arg_reloc
, NULL
);
1448 /* Do the real work for assembling a single instruction. Store results
1449 into the global "the_insn" variable. */
1455 char *error_message
= "";
1456 char *s
, c
, *argstart
, *name
, *save_s
;
1460 int cmpltr
, nullif
, flag
, cond
, num
;
1461 unsigned long opcode
;
1462 struct pa_opcode
*insn
;
1465 /* We must have a valid space and subspace. */
1466 pa_check_current_space_and_subspace ();
1469 /* Convert everything up to the first whitespace character into lower
1471 for (s
= str
; *s
!= ' ' && *s
!= '\t' && *s
!= '\n' && *s
!= '\0'; s
++)
1475 /* Skip to something interesting. */
1476 for (s
= str
; isupper (*s
) || islower (*s
) || (*s
>= '0' && *s
<= '3'); ++s
)
1495 as_fatal (_("Unknown opcode: `%s'"), str
);
1500 /* Look up the opcode in the has table. */
1501 if ((insn
= (struct pa_opcode
*) hash_find (op_hash
, str
)) == NULL
)
1503 as_bad ("Unknown opcode: `%s'", str
);
1512 /* Mark the location where arguments for the instruction start, then
1513 start processing them. */
1517 /* Do some initialization. */
1518 opcode
= insn
->match
;
1519 strict
= (insn
->flags
& FLAG_STRICT
);
1520 memset (&the_insn
, 0, sizeof (the_insn
));
1522 the_insn
.reloc
= R_HPPA_NONE
;
1524 /* If this instruction is specific to a particular architecture,
1525 then set a new architecture. */
1526 /* But do not automatically promote to pa2.0. The automatic promotion
1527 crud is for compatability with HP's old assemblers only. */
1529 && bfd_get_mach (stdoutput
) < insn
->arch
)
1531 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, insn
->arch
))
1532 as_warn (_("could not update architecture and machine"));
1534 else if (bfd_get_mach (stdoutput
) < insn
->arch
)
1540 /* Build the opcode, checking as we go to make
1541 sure that the operands match. */
1542 for (args
= insn
->args
;; ++args
)
1544 /* Absorb white space in instruction. */
1545 while (*s
== ' ' || *s
== '\t')
1551 /* End of arguments. */
1567 /* These must match exactly. */
1576 /* Handle a 5 bit register or control register field at 10. */
1579 /* This should be more strict. Small steps. */
1580 if (strict
&& *s
!= '%')
1582 num
= pa_parse_number (&s
, 0);
1583 CHECK_FIELD (num
, 31, 0, 0);
1584 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1586 /* Handle %sar or %cr11. No bits get set, we just verify that it
1589 /* Skip whitespace before register. */
1590 while (*s
== ' ' || *s
== '\t')
1593 if (!strncasecmp(s
, "%sar", 4))
1598 else if (!strncasecmp(s
, "%cr11", 5))
1605 /* Handle a 5 bit register field at 15. */
1607 /* This should be more strict. Small steps. */
1608 if (strict
&& *s
!= '%')
1610 num
= pa_parse_number (&s
, 0);
1611 CHECK_FIELD (num
, 31, 0, 0);
1612 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1614 /* Handle a 5 bit register field at 31. */
1616 /* This should be more strict. Small steps. */
1617 if (strict
&& *s
!= '%')
1619 num
= pa_parse_number (&s
, 0);
1620 CHECK_FIELD (num
, 31, 0, 0);
1621 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1623 /* Handle a 5 bit register field at 10 and 15. */
1625 /* This should be more strict. Small steps. */
1626 if (strict
&& *s
!= '%')
1628 num
= pa_parse_number (&s
, 0);
1629 CHECK_FIELD (num
, 31, 0, 0);
1630 opcode
|= num
<< 16;
1631 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1633 /* Handle a 5 bit field length at 31. */
1635 num
= pa_get_absolute_expression (&the_insn
, &s
);
1636 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1639 CHECK_FIELD (num
, 32, 1, 0);
1640 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
1642 /* Handle a 5 bit immediate at 15. */
1644 num
= pa_get_absolute_expression (&the_insn
, &s
);
1645 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1648 /* When in strict mode, we want to just reject this
1649 match instead of giving an out of range error. */
1650 CHECK_FIELD (num
, 15, -16, strict
);
1651 low_sign_unext (num
, 5, &num
);
1652 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1654 /* Handle a 5 bit immediate at 31. */
1656 num
= pa_get_absolute_expression (&the_insn
, &s
);
1657 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1660 /* When in strict mode, we want to just reject this
1661 match instead of giving an out of range error. */
1662 CHECK_FIELD (num
, 15, -16, strict
)
1663 low_sign_unext (num
, 5, &num
);
1664 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1666 /* Handle an unsigned 5 bit immediate at 31. */
1668 num
= pa_get_absolute_expression (&the_insn
, &s
);
1669 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1672 CHECK_FIELD (num
, 31, 0, 0);
1673 INSERT_FIELD_AND_CONTINUE (opcode
, num
, strict
);
1675 /* Handle an unsigned 5 bit immediate at 15. */
1677 num
= pa_get_absolute_expression (&the_insn
, &s
);
1678 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1681 CHECK_FIELD (num
, 31, 0, strict
);
1682 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1684 /* Handle an unsigned 10 bit immediate at 15. */
1686 num
= pa_get_absolute_expression (&the_insn
, &s
);
1687 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1690 CHECK_FIELD (num
, 1023, 0, strict
);
1691 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1693 /* Handle a 2 bit space identifier at 17. */
1695 /* This should be more strict. Small steps. */
1696 if (strict
&& *s
!= '%')
1698 num
= pa_parse_number (&s
, 0);
1699 CHECK_FIELD (num
, 3, 0, 1);
1700 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
1702 /* Handle a 3 bit space identifier at 18. */
1704 /* This should be more strict. Small steps. */
1705 if (strict
&& *s
!= '%')
1707 num
= pa_parse_number (&s
, 0);
1708 CHECK_FIELD (num
, 7, 0, 1);
1709 dis_assemble_3 (num
, &num
);
1710 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
1712 /* Handle all completers. */
1717 /* Handle a completer for an indexing load or store. */
1723 while (*s
== ',' && i
< 2)
1726 if (strncasecmp (s
, "sm", 2) == 0)
1733 else if (strncasecmp (s
, "m", 1) == 0)
1735 else if (strncasecmp (s
, "s", 1) == 0)
1737 /* When in strict mode this is a match failure. */
1741 as_bad (_("Invalid Indexed Load Completer."));
1746 as_bad (_("Invalid Indexed Load Completer Syntax."));
1748 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
1751 /* Handle a short load/store completer. */
1759 if (strncasecmp (s
, "ma", 2) == 0)
1764 else if (strncasecmp (s
, "mb", 2) == 0)
1769 /* When in strict mode this is a match failure. */
1773 as_bad (_("Invalid Short Load/Store Completer."));
1778 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1781 /* Handle a stbys completer. */
1787 while (*s
== ',' && i
< 2)
1790 if (strncasecmp (s
, "m", 1) == 0)
1792 else if (strncasecmp (s
, "b", 1) == 0)
1794 else if (strncasecmp (s
, "e", 1) == 0)
1796 /* When in strict mode this is a match failure. */
1800 as_bad (_("Invalid Store Bytes Short Completer"));
1805 as_bad (_("Invalid Store Bytes Short Completer"));
1807 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1810 /* Handle a local processor completer. */
1812 if (strncasecmp (s
, ",l", 2) != 0)
1817 /* Handle a PROBE read/write completer. */
1820 if (!strncasecmp (s
, ",w", 2))
1825 else if (!strncasecmp (s
, ",r", 2))
1831 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1833 /* Handle MFCTL wide completer. */
1835 if (strncasecmp (s
, ",w", 2) != 0)
1840 /* Handle an RFI restore completer. */
1843 if (!strncasecmp (s
, ",r", 2))
1849 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1851 /* Handle a system control completer. */
1853 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
1861 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1863 /* Handle intermediate/final completer for DCOR. */
1866 if (!strncasecmp (s
, ",i", 2))
1872 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1874 /* Handle zero/sign extension completer. */
1877 if (!strncasecmp (s
, ",z", 2))
1883 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1885 /* Handle add completer. */
1888 if (!strncasecmp (s
, ",l", 2))
1893 else if (!strncasecmp (s
, ",tsv", 4))
1899 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1901 /* Handle 64 bit carry for ADD. */
1904 if (!strncasecmp (s
, ",dc,tsv", 7) ||
1905 !strncasecmp (s
, ",tsv,dc", 7))
1910 else if (!strncasecmp (s
, ",dc", 3))
1918 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1920 /* Handle 32 bit carry for ADD. */
1923 if (!strncasecmp (s
, ",c,tsv", 6) ||
1924 !strncasecmp (s
, ",tsv,c", 6))
1929 else if (!strncasecmp (s
, ",c", 2))
1937 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1939 /* Handle trap on signed overflow. */
1942 if (!strncasecmp (s
, ",tsv", 4))
1948 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1950 /* Handle trap on condition and overflow. */
1953 if (!strncasecmp (s
, ",tc,tsv", 7) ||
1954 !strncasecmp (s
, ",tsv,tc", 7))
1959 else if (!strncasecmp (s
, ",tc", 3))
1967 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1969 /* Handle 64 bit borrow for SUB. */
1972 if (!strncasecmp (s
, ",db,tsv", 7) ||
1973 !strncasecmp (s
, ",tsv,db", 7))
1978 else if (!strncasecmp (s
, ",db", 3))
1986 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1988 /* Handle 32 bit borrow for SUB. */
1991 if (!strncasecmp (s
, ",b,tsv", 6) ||
1992 !strncasecmp (s
, ",tsv,b", 6))
1997 else if (!strncasecmp (s
, ",b", 2))
2005 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2007 /* Handle trap condition completer for UADDCM. */
2010 if (!strncasecmp (s
, ",tc", 3))
2016 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
2018 /* Handle signed/unsigned at 21. */
2022 if (strncasecmp (s
, ",s", 2) == 0)
2027 else if (strncasecmp (s
, ",u", 2) == 0)
2033 INSERT_FIELD_AND_CONTINUE (opcode
, sign
, 10);
2036 /* Handle left/right combination at 17:18. */
2046 as_bad(_("Invalid left/right combination completer"));
2049 INSERT_FIELD_AND_CONTINUE (opcode
, lr
, 13);
2052 as_bad(_("Invalid left/right combination completer"));
2055 /* Handle saturation at 24:25. */
2059 if (strncasecmp (s
, ",ss", 3) == 0)
2064 else if (strncasecmp (s
, ",us", 3) == 0)
2070 INSERT_FIELD_AND_CONTINUE (opcode
, sat
, 6);
2073 /* Handle permutation completer. */
2077 int permloc
[4] = {13,10,8,6};
2097 as_bad(_("Invalid permutation completer"));
2099 opcode
|= perm
<< permloc
[i
];
2104 as_bad(_("Invalid permutation completer"));
2112 /* Handle all conditions. */
2118 /* Handle FP compare conditions. */
2120 cond
= pa_parse_fp_cmp_cond (&s
);
2121 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
2123 /* Handle an add condition. */
2132 /* 64 bit conditions. */
2145 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2149 if (strcmp (name
, "=") == 0)
2151 else if (strcmp (name
, "<") == 0)
2153 else if (strcmp (name
, "<=") == 0)
2155 else if (strcasecmp (name
, "nuv") == 0)
2157 else if (strcasecmp (name
, "znv") == 0)
2159 else if (strcasecmp (name
, "sv") == 0)
2161 else if (strcasecmp (name
, "od") == 0)
2163 else if (strcasecmp (name
, "tr") == 0)
2168 else if (strcmp (name
, "<>") == 0)
2173 else if (strcmp (name
, ">=") == 0)
2178 else if (strcmp (name
, ">") == 0)
2183 else if (strcasecmp (name
, "uv") == 0)
2188 else if (strcasecmp (name
, "vnz") == 0)
2193 else if (strcasecmp (name
, "nsv") == 0)
2198 else if (strcasecmp (name
, "ev") == 0)
2203 /* ",*" is a valid condition. */
2204 else if (*args
== 'a')
2205 as_bad (_("Invalid Add Condition: %s"), name
);
2208 opcode
|= cmpltr
<< 13;
2209 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2211 /* Handle non-negated add and branch condition. */
2213 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2216 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2219 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2221 /* Handle negated add and branch condition. */
2225 /* Handle wide-mode non-negated add and branch condition. */
2229 /* Handle wide-mode negated add and branch condition. */
2233 /* Handle a negated or non-negated add and branch
2237 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2241 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
2244 as_bad (_("Invalid Compare/Subtract Condition"));
2249 /* Negated condition requires an opcode change. */
2253 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2255 /* Handle branch on bit conditions. */
2273 if (strncmp (s
, "<", 1) == 0)
2278 else if (strncmp (s
, ">=", 2) == 0)
2284 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
2286 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
2288 /* Handle a compare/subtract condition. */
2297 /* 64 bit conditions. */
2310 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2314 if (strcmp (name
, "=") == 0)
2316 else if (strcmp (name
, "<") == 0)
2318 else if (strcmp (name
, "<=") == 0)
2320 else if (strcasecmp (name
, "<<") == 0)
2322 else if (strcasecmp (name
, "<<=") == 0)
2324 else if (strcasecmp (name
, "sv") == 0)
2326 else if (strcasecmp (name
, "od") == 0)
2328 else if (strcasecmp (name
, "tr") == 0)
2333 else if (strcmp (name
, "<>") == 0)
2338 else if (strcmp (name
, ">=") == 0)
2343 else if (strcmp (name
, ">") == 0)
2348 else if (strcasecmp (name
, ">>=") == 0)
2353 else if (strcasecmp (name
, ">>") == 0)
2358 else if (strcasecmp (name
, "nsv") == 0)
2363 else if (strcasecmp (name
, "ev") == 0)
2368 /* ",*" is a valid condition. */
2369 else if (*args
!= 'S')
2370 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2374 opcode
|= cmpltr
<< 13;
2375 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2377 /* Handle a non-negated compare condition. */
2379 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2382 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2385 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2387 /* Handle a negated compare condition. */
2391 /* Handle a 64 bit non-negated compare condition. */
2395 /* Handle a 64 bit negated compare condition. */
2399 /* Handle a 64 bit cmpib condition. */
2403 /* Handle a negated or non-negated compare/subtract
2407 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2411 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2414 as_bad (_("Invalid Compare/Subtract Condition."));
2419 /* Negated condition requires an opcode change. */
2424 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2426 /* Handle a logical instruction condition. */
2435 /* 64 bit conditions. */
2448 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2454 if (strcmp (name
, "=") == 0)
2456 else if (strcmp (name
, "<") == 0)
2458 else if (strcmp (name
, "<=") == 0)
2460 else if (strcasecmp (name
, "od") == 0)
2462 else if (strcasecmp (name
, "tr") == 0)
2467 else if (strcmp (name
, "<>") == 0)
2472 else if (strcmp (name
, ">=") == 0)
2477 else if (strcmp (name
, ">") == 0)
2482 else if (strcasecmp (name
, "ev") == 0)
2487 /* ",*" is a valid condition. */
2488 else if (*args
!= 'L')
2489 as_bad (_("Invalid Logical Instruction Condition."));
2492 opcode
|= cmpltr
<< 13;
2493 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2495 /* Handle a shift/extract/deposit condition. */
2504 /* 64 bit conditions. */
2517 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2521 if (strcmp (name
, "=") == 0)
2523 else if (strcmp (name
, "<") == 0)
2525 else if (strcasecmp (name
, "od") == 0)
2527 else if (strcasecmp (name
, "tr") == 0)
2529 else if (strcmp (name
, "<>") == 0)
2531 else if (strcmp (name
, ">=") == 0)
2533 else if (strcasecmp (name
, "ev") == 0)
2535 /* Handle movb,n. Put things back the way they were.
2536 This includes moving s back to where it started. */
2537 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2543 /* ",*" is a valid condition. */
2544 else if (*args
!= 'X')
2545 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2548 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2550 /* Handle a unit instruction condition. */
2559 /* 64 bit conditions. */
2570 if (strncasecmp (s
, "sbz", 3) == 0)
2575 else if (strncasecmp (s
, "shz", 3) == 0)
2580 else if (strncasecmp (s
, "sdc", 3) == 0)
2585 else if (strncasecmp (s
, "sbc", 3) == 0)
2590 else if (strncasecmp (s
, "shc", 3) == 0)
2595 else if (strncasecmp (s
, "tr", 2) == 0)
2601 else if (strncasecmp (s
, "nbz", 3) == 0)
2607 else if (strncasecmp (s
, "nhz", 3) == 0)
2613 else if (strncasecmp (s
, "ndc", 3) == 0)
2619 else if (strncasecmp (s
, "nbc", 3) == 0)
2625 else if (strncasecmp (s
, "nhc", 3) == 0)
2631 /* ",*" is a valid condition. */
2632 else if (*args
!= 'U')
2633 as_bad (_("Invalid Unit Instruction Condition."));
2635 opcode
|= cmpltr
<< 13;
2636 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2644 /* Handle a nullification completer for branch instructions. */
2646 nullif
= pa_parse_nullif (&s
);
2647 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2649 /* Handle a nullification completer for copr and spop insns. */
2651 nullif
= pa_parse_nullif (&s
);
2652 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2655 /* Handle a 11 bit immediate at 31. */
2657 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2660 if (the_insn
.exp
.X_op
== O_constant
)
2662 num
= evaluate_absolute (&the_insn
);
2663 CHECK_FIELD (num
, 1023, -1024, 0);
2664 low_sign_unext (num
, 11, &num
);
2665 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2669 if (is_DP_relative (the_insn
.exp
))
2670 the_insn
.reloc
= R_HPPA_GOTOFF
;
2671 else if (is_PC_relative (the_insn
.exp
))
2672 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2674 the_insn
.reloc
= R_HPPA
;
2675 the_insn
.format
= 11;
2680 /* Handle a 14 bit immediate at 31. */
2682 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2685 if (the_insn
.exp
.X_op
== O_constant
)
2687 num
= evaluate_absolute (&the_insn
);
2688 CHECK_FIELD (num
, 8191, -8192, 0);
2689 low_sign_unext (num
, 14, &num
);
2690 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2694 if (is_DP_relative (the_insn
.exp
))
2695 the_insn
.reloc
= R_HPPA_GOTOFF
;
2696 else if (is_PC_relative (the_insn
.exp
))
2697 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2699 the_insn
.reloc
= R_HPPA
;
2700 the_insn
.format
= 14;
2704 /* Handle a 21 bit immediate at 31. */
2706 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2709 if (the_insn
.exp
.X_op
== O_constant
)
2711 num
= evaluate_absolute (&the_insn
);
2712 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2713 dis_assemble_21 (num
, &num
);
2714 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2718 if (is_DP_relative (the_insn
.exp
))
2719 the_insn
.reloc
= R_HPPA_GOTOFF
;
2720 else if (is_PC_relative (the_insn
.exp
))
2721 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2723 the_insn
.reloc
= R_HPPA
;
2724 the_insn
.format
= 21;
2728 /* Handle a 12 bit branch displacement. */
2730 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2734 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2736 unsigned int w1
, w
, result
;
2738 num
= evaluate_absolute (&the_insn
);
2741 as_bad (_("Branch to unaligned address"));
2744 CHECK_FIELD (num
, 8199, -8184, 0);
2745 sign_unext ((num
- 8) >> 2, 12, &result
);
2746 dis_assemble_12 (result
, &w1
, &w
);
2747 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2751 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2752 the_insn
.format
= 12;
2753 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2754 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2759 /* Handle a 17 bit branch displacement. */
2761 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2765 if (!the_insn
.exp
.X_add_symbol
2766 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2769 unsigned int w2
, w1
, w
, result
;
2771 num
= evaluate_absolute (&the_insn
);
2774 as_bad (_("Branch to unaligned address"));
2777 CHECK_FIELD (num
, 262143, -262144, 0);
2779 if (the_insn
.exp
.X_add_symbol
)
2782 sign_unext (num
>> 2, 17, &result
);
2783 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2784 INSERT_FIELD_AND_CONTINUE (opcode
,
2785 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2789 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2790 the_insn
.format
= 17;
2791 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2792 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2796 /* Handle an absolute 17 bit branch target. */
2798 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2802 if (!the_insn
.exp
.X_add_symbol
2803 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2806 unsigned int w2
, w1
, w
, result
;
2808 num
= evaluate_absolute (&the_insn
);
2811 as_bad (_("Branch to unaligned address"));
2814 CHECK_FIELD (num
, 262143, -262144, 0);
2816 if (the_insn
.exp
.X_add_symbol
)
2819 sign_unext (num
>> 2, 17, &result
);
2820 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2821 INSERT_FIELD_AND_CONTINUE (opcode
,
2822 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2826 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2827 the_insn
.format
= 17;
2828 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2829 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2833 /* Handle '%r1' implicit operand of addil instruction. */
2835 if (*s
== ',' && *(s
+ 1) == '%' && *(s
+ 3) == '1'
2836 && (*(s
+ 2) == 'r' || *(s
+ 2) == 'R'))
2844 /* Handle a 2 bit shift count at 25. */
2846 num
= pa_get_absolute_expression (&the_insn
, &s
);
2847 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2850 CHECK_FIELD (num
, 3, 1, strict
);
2851 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2853 /* Handle a 4 bit shift count at 25. */
2855 num
= pa_get_absolute_expression (&the_insn
, &s
);
2856 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2859 CHECK_FIELD (num
, 15, 0, strict
);
2860 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2862 /* Handle a 5 bit shift count at 26. */
2864 num
= pa_get_absolute_expression (&the_insn
, &s
);
2865 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2868 CHECK_FIELD (num
, 31, 0, strict
);
2869 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2871 /* Handle a 6 bit shift count at 20,22:26. */
2873 num
= pa_get_absolute_expression (&the_insn
, &s
);
2874 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2877 CHECK_FIELD (num
, 63, 0, strict
);
2879 opcode
|= (num
& 0x20) << 6;
2880 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2882 /* Handle a 6 bit field length at 23,27:31. */
2885 num
= pa_get_absolute_expression (&the_insn
, &s
);
2886 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2889 CHECK_FIELD (num
, 64, 1, strict
);
2891 opcode
|= (num
& 0x20) << 3;
2892 num
= 31 - (num
& 0x1f);
2893 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2895 /* Handle a 6 bit field length at 19,27:31. */
2897 num
= pa_get_absolute_expression (&the_insn
, &s
);
2898 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2901 CHECK_FIELD (num
, 64, 1, strict
);
2903 opcode
|= (num
& 0x20) << 7;
2904 num
= 31 - (num
& 0x1f);
2905 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2907 /* Handle a 5 bit bit position at 26. */
2909 num
= pa_get_absolute_expression (&the_insn
, &s
);
2910 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2913 CHECK_FIELD (num
, 31, 0, strict
);
2914 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2916 /* Handle a 6 bit bit position at 20,22:26. */
2918 num
= pa_get_absolute_expression (&the_insn
, &s
);
2919 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2922 CHECK_FIELD (num
, 63, 0, strict
);
2923 opcode
|= (num
& 0x20) << 6;
2924 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2926 /* Handle a 5 bit immediate at 10. */
2928 num
= pa_get_absolute_expression (&the_insn
, &s
);
2929 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2931 if (the_insn
.exp
.X_op
!= O_constant
)
2934 CHECK_FIELD (num
, 31, 0, strict
);
2935 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2937 /* Handle a 9 bit immediate at 28. */
2939 num
= pa_get_absolute_expression (&the_insn
, &s
);
2940 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2943 CHECK_FIELD (num
, 511, 1, strict
);
2944 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
2946 /* Handle a 13 bit immediate at 18. */
2948 num
= pa_get_absolute_expression (&the_insn
, &s
);
2949 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2952 CHECK_FIELD (num
, 8191, 0, strict
);
2953 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2955 /* Handle a 26 bit immediate at 31. */
2957 num
= pa_get_absolute_expression (&the_insn
, &s
);
2958 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2961 CHECK_FIELD (num
, 671108864, 0, strict
);
2962 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2964 /* Handle a 3 bit SFU identifier at 25. */
2967 as_bad (_("Invalid SFU identifier"));
2968 num
= pa_get_absolute_expression (&the_insn
, &s
);
2969 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2972 CHECK_FIELD (num
, 7, 0, strict
);
2973 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2975 /* Handle a 20 bit SOP field for spop0. */
2977 num
= pa_get_absolute_expression (&the_insn
, &s
);
2978 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2981 CHECK_FIELD (num
, 1048575, 0, strict
);
2982 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2983 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2985 /* Handle a 15bit SOP field for spop1. */
2987 num
= pa_get_absolute_expression (&the_insn
, &s
);
2988 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2991 CHECK_FIELD (num
, 32767, 0, strict
);
2992 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2994 /* Handle a 10bit SOP field for spop3. */
2996 num
= pa_get_absolute_expression (&the_insn
, &s
);
2997 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3000 CHECK_FIELD (num
, 1023, 0, strict
);
3001 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
3002 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3004 /* Handle a 15 bit SOP field for spop2. */
3006 num
= pa_get_absolute_expression (&the_insn
, &s
);
3007 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3010 CHECK_FIELD (num
, 32767, 0, strict
);
3011 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
3012 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3014 /* Handle a 3-bit co-processor ID field. */
3017 as_bad (_("Invalid COPR identifier"));
3018 num
= pa_get_absolute_expression (&the_insn
, &s
);
3019 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3022 CHECK_FIELD (num
, 7, 0, strict
);
3023 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
3025 /* Handle a 22bit SOP field for copr. */
3027 num
= pa_get_absolute_expression (&the_insn
, &s
);
3028 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3031 CHECK_FIELD (num
, 4194303, 0, strict
);
3032 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
3033 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3036 /* Handle a source FP operand format completer. */
3038 flag
= pa_parse_fp_format (&s
);
3039 the_insn
.fpof1
= flag
;
3040 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3042 /* Handle a destination FP operand format completer. */
3044 /* pa_parse_format needs the ',' prefix. */
3046 flag
= pa_parse_fp_format (&s
);
3047 the_insn
.fpof2
= flag
;
3048 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
3050 /* Handle a source FP operand format completer at 20. */
3052 flag
= pa_parse_fp_format (&s
);
3053 the_insn
.fpof1
= flag
;
3054 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3056 /* Handle a floating point operand format at 26.
3057 Only allows single and double precision. */
3059 flag
= pa_parse_fp_format (&s
);
3065 the_insn
.fpof1
= flag
;
3071 as_bad (_("Invalid Floating Point Operand Format."));
3075 /* Handle all floating point registers. */
3079 /* Float target register. */
3081 /* This should be more strict. Small steps. */
3082 if (strict
&& *s
!= '%')
3084 num
= pa_parse_number (&s
, 0);
3085 CHECK_FIELD (num
, 31, 0, 0);
3086 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3088 /* Float target register with L/R selection. */
3091 struct pa_11_fp_reg_struct result
;
3093 /* This should be more strict. Small steps. */
3094 if (strict
&& *s
!= '%')
3096 pa_parse_number (&s
, &result
);
3097 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3098 opcode
|= result
.number_part
;
3100 /* 0x30 opcodes are FP arithmetic operation opcodes
3101 and need to be turned into 0x38 opcodes. This
3102 is not necessary for loads/stores. */
3103 if (need_pa11_opcode (&the_insn
, &result
)
3104 && ((opcode
& 0xfc000000) == 0x30000000))
3107 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
3110 /* Float operand 1. */
3113 struct pa_11_fp_reg_struct result
;
3115 /* This should be more strict. Small steps. */
3116 if (strict
&& *s
!= '%')
3118 pa_parse_number (&s
, &result
);
3119 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3120 opcode
|= result
.number_part
<< 21;
3121 if (need_pa11_opcode (&the_insn
, &result
))
3123 opcode
|= (result
.l_r_select
& 1) << 7;
3129 /* Float operand 1 with L/R selection. */
3132 struct pa_11_fp_reg_struct result
;
3134 /* This should be more strict. Small steps. */
3135 if (strict
&& *s
!= '%')
3137 pa_parse_number (&s
, &result
);
3138 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3139 opcode
|= result
.number_part
<< 21;
3140 opcode
|= (result
.l_r_select
& 1) << 7;
3144 /* Float operand 2. */
3147 struct pa_11_fp_reg_struct result
;
3149 /* This should be more strict. Small steps. */
3150 if (strict
&& *s
!= '%')
3152 pa_parse_number (&s
, &result
);
3153 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3154 opcode
|= (result
.number_part
& 0x1f) << 16;
3155 if (need_pa11_opcode (&the_insn
, &result
))
3157 opcode
|= (result
.l_r_select
& 1) << 12;
3163 /* Float operand 2 with L/R selection. */
3166 struct pa_11_fp_reg_struct result
;
3168 /* This should be more strict. Small steps. */
3169 if (strict
&& *s
!= '%')
3171 pa_parse_number (&s
, &result
);
3172 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3173 opcode
|= (result
.number_part
& 0x1f) << 16;
3174 opcode
|= (result
.l_r_select
& 1) << 12;
3178 /* Float operand 3 for fmpyfadd, fmpynfadd. */
3181 struct pa_11_fp_reg_struct result
;
3184 /* This should be more strict. Small steps. */
3185 if (strict
&& *s
!= '%')
3187 pa_parse_number (&s
, &result
);
3188 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3189 opcode
|= (result
.number_part
& 0x1c) << 11;
3190 opcode
|= (result
.number_part
& 0x3) << 9;
3191 opcode
|= (result
.l_r_select
& 1) << 8;
3195 /* Float mult operand 1 for fmpyadd, fmpysub */
3198 struct pa_11_fp_reg_struct result
;
3200 /* This should be more strict. Small steps. */
3201 if (strict
&& *s
!= '%')
3203 pa_parse_number (&s
, &result
);
3204 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3205 if (the_insn
.fpof1
== SGL
)
3207 if (result
.number_part
< 16)
3209 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3213 result
.number_part
&= 0xF;
3214 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3216 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
3219 /* Float mult operand 2 for fmpyadd, fmpysub */
3222 struct pa_11_fp_reg_struct result
;
3224 /* This should be more strict. Small steps. */
3225 if (strict
&& *s
!= '%')
3227 pa_parse_number (&s
, &result
);
3228 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3229 if (the_insn
.fpof1
== SGL
)
3231 if (result
.number_part
< 16)
3233 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3236 result
.number_part
&= 0xF;
3237 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3239 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
3242 /* Float mult target for fmpyadd, fmpysub */
3245 struct pa_11_fp_reg_struct result
;
3247 /* This should be more strict. Small steps. */
3248 if (strict
&& *s
!= '%')
3250 pa_parse_number (&s
, &result
);
3251 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3252 if (the_insn
.fpof1
== SGL
)
3254 if (result
.number_part
< 16)
3256 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3259 result
.number_part
&= 0xF;
3260 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3262 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
3265 /* Float add operand 1 for fmpyadd, fmpysub */
3268 struct pa_11_fp_reg_struct result
;
3270 /* This should be more strict. Small steps. */
3271 if (strict
&& *s
!= '%')
3273 pa_parse_number (&s
, &result
);
3274 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3275 if (the_insn
.fpof1
== SGL
)
3277 if (result
.number_part
< 16)
3279 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3282 result
.number_part
&= 0xF;
3283 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3285 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
3288 /* Float add target for fmpyadd, fmpysub */
3291 struct pa_11_fp_reg_struct result
;
3293 /* This should be more strict. Small steps. */
3294 if (strict
&& *s
!= '%')
3296 pa_parse_number (&s
, &result
);
3297 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3298 if (the_insn
.fpof1
== SGL
)
3300 if (result
.number_part
< 16)
3302 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3305 result
.number_part
&= 0xF;
3306 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3308 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
3316 /* Handle L/R register halves like 'x'. */
3319 struct pa_11_fp_reg_struct result
;
3321 /* This should be more strict. Small steps. */
3322 if (strict
&& *s
!= '%')
3324 pa_parse_number (&s
, &result
);
3325 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3326 opcode
|= (result
.number_part
& 0x1f) << 16;
3327 if (need_pa11_opcode (&the_insn
, &result
))
3329 opcode
|= (result
.l_r_select
& 1) << 1;
3341 /* Check if the args matched. */
3344 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
3345 && !strcmp (insn
->name
, insn
[1].name
))
3353 as_bad (_("Invalid operands %s"), error_message
);
3360 the_insn
.opcode
= opcode
;
3363 /* Turn a string in input_line_pointer into a floating point constant of type
3364 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3365 emitted is stored in *sizeP . An error message or NULL is returned. */
3367 #define MAX_LITTLENUMS 6
3370 md_atof (type
, litP
, sizeP
)
3376 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
3377 LITTLENUM_TYPE
*wordP
;
3409 return _("Bad call to MD_ATOF()");
3411 t
= atof_ieee (input_line_pointer
, type
, words
);
3413 input_line_pointer
= t
;
3414 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
3415 for (wordP
= words
; prec
--;)
3417 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
3418 litP
+= sizeof (LITTLENUM_TYPE
);
3423 /* Write out big-endian. */
3426 md_number_to_chars (buf
, val
, n
)
3431 number_to_chars_bigendian (buf
, val
, n
);
3434 /* Translate internal representation of relocation info to BFD target
3438 tc_gen_reloc (section
, fixp
)
3443 struct hppa_fix_struct
*hppa_fixp
;
3444 bfd_reloc_code_real_type code
;
3445 static arelent
*no_relocs
= NULL
;
3447 bfd_reloc_code_real_type
**codes
;
3451 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
3452 if (fixp
->fx_addsy
== 0)
3454 assert (hppa_fixp
!= 0);
3455 assert (section
!= 0);
3457 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
3459 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3460 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3461 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
3463 hppa_fixp
->fx_r_format
,
3464 hppa_fixp
->fx_r_field
,
3465 fixp
->fx_subsy
!= NULL
,
3466 symbol_get_bfdsym (fixp
->fx_addsy
));
3471 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
3474 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
3475 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
3476 for (i
= 0; i
< n_relocs
; i
++)
3477 relocs
[i
] = &reloc
[i
];
3479 relocs
[n_relocs
] = NULL
;
3482 switch (fixp
->fx_r_type
)
3485 assert (n_relocs
== 1);
3489 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3490 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3491 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3492 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3493 reloc
->addend
= 0; /* default */
3495 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
3497 /* Now, do any processing that is dependent on the relocation type. */
3500 case R_PARISC_DLTREL21L
:
3501 case R_PARISC_DLTREL14R
:
3502 case R_PARISC_DLTREL14F
:
3503 case R_PARISC_PLABEL32
:
3504 case R_PARISC_PLABEL21L
:
3505 case R_PARISC_PLABEL14R
:
3506 /* For plabel relocations, the addend of the
3507 relocation should be either 0 (no static link) or 2
3508 (static link required).
3510 FIXME: We always assume no static link!
3512 We also slam a zero addend into the DLT relative relocs;
3513 it doesn't make a lot of sense to use any addend since
3514 it gets you a different (eg unknown) DLT entry. */
3518 case R_PARISC_PCREL21L
:
3519 case R_PARISC_PCREL17R
:
3520 case R_PARISC_PCREL17F
:
3521 case R_PARISC_PCREL17C
:
3522 case R_PARISC_PCREL14R
:
3523 case R_PARISC_PCREL14F
:
3524 /* The constant is stored in the instruction. */
3525 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3528 reloc
->addend
= fixp
->fx_offset
;
3535 /* Walk over reach relocation returned by the BFD backend. */
3536 for (i
= 0; i
< n_relocs
; i
++)
3540 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3541 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3542 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3543 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3548 /* The only time we ever use a R_COMP2 fixup is for the difference
3549 of two symbols. With that in mind we fill in all four
3550 relocs now and break out of the loop. */
3552 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3553 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
3554 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3555 relocs
[0]->addend
= 0;
3556 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3557 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3558 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
3559 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3560 relocs
[1]->addend
= 0;
3561 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3562 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3563 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3564 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3565 relocs
[2]->addend
= 0;
3566 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3567 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3568 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3569 relocs
[3]->addend
= 0;
3570 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3571 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3572 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3573 relocs
[4]->addend
= 0;
3577 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3583 /* For plabel relocations, the addend of the
3584 relocation should be either 0 (no static link) or 2
3585 (static link required).
3587 FIXME: We always assume no static link!
3589 We also slam a zero addend into the DLT relative relocs;
3590 it doesn't make a lot of sense to use any addend since
3591 it gets you a different (eg unknown) DLT entry. */
3592 relocs
[i
]->addend
= 0;
3607 /* There is no symbol or addend associated with these fixups. */
3608 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3609 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3610 relocs
[i
]->addend
= 0;
3616 /* There is no symbol associated with these fixups. */
3617 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3618 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3619 relocs
[i
]->addend
= fixp
->fx_offset
;
3623 relocs
[i
]->addend
= fixp
->fx_offset
;
3633 /* Process any machine dependent frag types. */
3636 md_convert_frag (abfd
, sec
, fragP
)
3638 register asection
*sec
;
3639 register fragS
*fragP
;
3641 unsigned int address
;
3643 if (fragP
->fr_type
== rs_machine_dependent
)
3645 switch ((int) fragP
->fr_subtype
)
3648 fragP
->fr_type
= rs_fill
;
3649 know (fragP
->fr_var
== 1);
3650 know (fragP
->fr_next
);
3651 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3652 if (address
% fragP
->fr_offset
)
3655 fragP
->fr_next
->fr_address
3660 fragP
->fr_offset
= 0;
3666 /* Round up a section size to the appropriate boundary. */
3669 md_section_align (segment
, size
)
3673 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3674 int align2
= (1 << align
) - 1;
3676 return (size
+ align2
) & ~align2
;
3679 /* Return the approximate size of a frag before relaxation has occurred. */
3681 md_estimate_size_before_relax (fragP
, segment
)
3682 register fragS
*fragP
;
3689 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3695 CONST
char *md_shortopts
= "";
3696 struct option md_longopts
[] = {
3697 {NULL
, no_argument
, NULL
, 0}
3699 size_t md_longopts_size
= sizeof(md_longopts
);
3702 md_parse_option (c
, arg
)
3710 md_show_usage (stream
)
3715 /* We have no need to default values of symbols. */
3718 md_undefined_symbol (name
)
3724 /* Apply a fixup to an instruction. */
3727 md_apply_fix (fixP
, valp
)
3731 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3732 struct hppa_fix_struct
*hppa_fixP
;
3733 long new_val
, result
= 0;
3734 unsigned int w1
, w2
, w
, resulti
;
3736 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3737 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3738 never be "applied" (they are just markers). Likewise for
3739 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3741 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3742 || fixP
->fx_r_type
== R_HPPA_EXIT
3743 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3744 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3745 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3748 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3749 fixups are considered not adjustable, which in turn causes
3750 adjust_reloc_syms to not set fx_offset. Ugh. */
3751 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3753 fixP
->fx_offset
= *valp
;
3758 /* There should have been an HPPA specific fixup associated
3759 with the GAS fixup. */
3762 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3763 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3765 /* If there is a symbol associated with this fixup, then it's something
3766 which will need a SOM relocation (except for some PC-relative relocs).
3767 In such cases we should treat the "val" or "addend" as zero since it
3768 will be added in as needed from fx_offset in tc_gen_reloc. */
3769 if ((fixP
->fx_addsy
!= NULL
3770 || fixP
->fx_r_type
== R_HPPA_NONE
)
3775 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3777 /* These field selectors imply that we do not want an addend. */
3778 else if (hppa_fixP
->fx_r_field
== e_psel
3779 || hppa_fixP
->fx_r_field
== e_rpsel
3780 || hppa_fixP
->fx_r_field
== e_lpsel
3781 || hppa_fixP
->fx_r_field
== e_tsel
3782 || hppa_fixP
->fx_r_field
== e_rtsel
3783 || hppa_fixP
->fx_r_field
== e_ltsel
)
3784 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3785 /* This is truely disgusting. The machine independent code blindly
3786 adds in the value of the symbol being relocated against. Damn! */
3788 && fixP
->fx_addsy
!= NULL
3789 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3790 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3791 0, hppa_fixP
->fx_r_field
);
3794 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3796 /* Handle pc-relative exceptions from above. */
3797 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3798 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3799 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3803 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3804 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3805 hppa_fixP
->fx_arg_reloc
)
3807 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3808 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3810 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3812 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3813 #undef arg_reloc_stub_needed
3817 /* Handle all opcodes with the 'j' operand type. */
3819 CHECK_FIELD (new_val
, 8191, -8192, 0);
3821 /* Mask off 14 bits to be changed. */
3822 bfd_put_32 (stdoutput
,
3823 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3825 low_sign_unext (new_val
, 14, &resulti
);
3829 /* Handle all opcodes with the 'k' operand type. */
3831 CHECK_FIELD (new_val
, 2097152, 0, 0);
3833 /* Mask off 21 bits to be changed. */
3834 bfd_put_32 (stdoutput
,
3835 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3837 dis_assemble_21 (new_val
, &resulti
);
3841 /* Handle all the opcodes with the 'i' operand type. */
3843 CHECK_FIELD (new_val
, 1023, -1023, 0);
3845 /* Mask off 11 bits to be changed. */
3846 bfd_put_32 (stdoutput
,
3847 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3849 low_sign_unext (new_val
, 11, &resulti
);
3853 /* Handle all the opcodes with the 'w' operand type. */
3855 CHECK_FIELD (new_val
, 8199, -8184, 0);
3857 /* Mask off 11 bits to be changed. */
3858 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3859 bfd_put_32 (stdoutput
,
3860 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3863 dis_assemble_12 (resulti
, &w1
, &w
);
3864 result
= ((w1
<< 2) | w
);
3867 /* Handle some of the opcodes with the 'W' operand type. */
3870 int distance
= *valp
;
3872 CHECK_FIELD (new_val
, 262143, -262144, 0);
3874 /* If this is an absolute branch (ie no link) with an out of
3875 range target, then we want to complain. */
3876 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3877 && (distance
> 262143 || distance
< -262144)
3878 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3879 CHECK_FIELD (distance
, 262143, -262144, 0);
3881 /* Mask off 17 bits to be changed. */
3882 bfd_put_32 (stdoutput
,
3883 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3885 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3886 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3887 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3893 bfd_put_32 (stdoutput
, new_val
, buf
);
3897 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3901 /* Insert the relocation. */
3902 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3907 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3908 (unsigned int) fixP
, fixP
->fx_r_type
);
3913 /* Exactly what point is a PC-relative offset relative TO?
3914 On the PA, they're relative to the address of the offset. */
3917 md_pcrel_from (fixP
)
3920 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3923 /* Return nonzero if the input line pointer is at the end of
3927 is_end_of_statement ()
3929 return ((*input_line_pointer
== '\n')
3930 || (*input_line_pointer
== ';')
3931 || (*input_line_pointer
== '!'));
3934 /* Read a number from S. The number might come in one of many forms,
3935 the most common will be a hex or decimal constant, but it could be
3936 a pre-defined register (Yuk!), or an absolute symbol.
3938 Return a number or -1 for failure.
3940 When parsing PA-89 FP register numbers RESULT will be
3941 the address of a structure to return information about
3942 L/R half of FP registers, store results there as appropriate.
3944 pa_parse_number can not handle negative constants and will fail
3945 horribly if it is passed such a constant. */
3948 pa_parse_number (s
, result
)
3950 struct pa_11_fp_reg_struct
*result
;
3959 /* Skip whitespace before the number. */
3960 while (*p
== ' ' || *p
== '\t')
3963 /* Store info in RESULT if requested by caller. */
3966 result
->number_part
= -1;
3967 result
->l_r_select
= -1;
3973 /* Looks like a number. */
3976 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3978 /* The number is specified in hex. */
3980 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3981 || ((*p
>= 'A') && (*p
<= 'F')))
3984 num
= num
* 16 + *p
- '0';
3985 else if (*p
>= 'a' && *p
<= 'f')
3986 num
= num
* 16 + *p
- 'a' + 10;
3988 num
= num
* 16 + *p
- 'A' + 10;
3994 /* The number is specified in decimal. */
3995 while (isdigit (*p
))
3997 num
= num
* 10 + *p
- '0';
4002 /* Store info in RESULT if requested by the caller. */
4005 result
->number_part
= num
;
4007 if (IS_R_SELECT (p
))
4009 result
->l_r_select
= 1;
4012 else if (IS_L_SELECT (p
))
4014 result
->l_r_select
= 0;
4018 result
->l_r_select
= 0;
4023 /* The number might be a predefined register. */
4028 /* Tege hack: Special case for general registers as the general
4029 code makes a binary search with case translation, and is VERY
4034 if (*p
== 'e' && *(p
+ 1) == 't'
4035 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
4038 num
= *p
- '0' + 28;
4046 else if (!isdigit (*p
))
4049 as_bad (_("Undefined register: '%s'."), name
);
4055 num
= num
* 10 + *p
++ - '0';
4056 while (isdigit (*p
));
4061 /* Do a normal register search. */
4062 while (is_part_of_name (c
))
4068 status
= reg_name_search (name
);
4074 as_bad (_("Undefined register: '%s'."), name
);
4080 /* Store info in RESULT if requested by caller. */
4083 result
->number_part
= num
;
4084 if (IS_R_SELECT (p
- 1))
4085 result
->l_r_select
= 1;
4086 else if (IS_L_SELECT (p
- 1))
4087 result
->l_r_select
= 0;
4089 result
->l_r_select
= 0;
4094 /* And finally, it could be a symbol in the absolute section which
4095 is effectively a constant. */
4099 while (is_part_of_name (c
))
4105 if ((sym
= symbol_find (name
)) != NULL
)
4107 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
4108 num
= S_GET_VALUE (sym
);
4112 as_bad (_("Non-absolute symbol: '%s'."), name
);
4118 /* There is where we'd come for an undefined symbol
4119 or for an empty string. For an empty string we
4120 will return zero. That's a concession made for
4121 compatability with the braindamaged HP assemblers. */
4127 as_bad (_("Undefined absolute constant: '%s'."), name
);
4133 /* Store info in RESULT if requested by caller. */
4136 result
->number_part
= num
;
4137 if (IS_R_SELECT (p
- 1))
4138 result
->l_r_select
= 1;
4139 else if (IS_L_SELECT (p
- 1))
4140 result
->l_r_select
= 0;
4142 result
->l_r_select
= 0;
4150 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
4152 /* Given NAME, find the register number associated with that name, return
4153 the integer value associated with the given name or -1 on failure. */
4156 reg_name_search (name
)
4159 int middle
, low
, high
;
4163 high
= REG_NAME_CNT
- 1;
4167 middle
= (low
+ high
) / 2;
4168 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
4174 return pre_defined_registers
[middle
].value
;
4176 while (low
<= high
);
4182 /* Return nonzero if the given INSN and L/R information will require
4183 a new PA-1.1 opcode. */
4186 need_pa11_opcode (insn
, result
)
4188 struct pa_11_fp_reg_struct
*result
;
4190 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
4192 /* If this instruction is specific to a particular architecture,
4193 then set a new architecture. */
4194 if (bfd_get_mach (stdoutput
) < pa11
)
4196 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
4197 as_warn (_("could not update architecture and machine"));
4205 /* Parse a condition for a fcmp instruction. Return the numerical
4206 code associated with the condition. */
4209 pa_parse_fp_cmp_cond (s
)
4216 for (i
= 0; i
< 32; i
++)
4218 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
4219 strlen (fp_cond_map
[i
].string
)) == 0)
4221 cond
= fp_cond_map
[i
].cond
;
4222 *s
+= strlen (fp_cond_map
[i
].string
);
4223 /* If not a complete match, back up the input string and
4225 if (**s
!= ' ' && **s
!= '\t')
4227 *s
-= strlen (fp_cond_map
[i
].string
);
4230 while (**s
== ' ' || **s
== '\t')
4236 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
4238 /* Advance over the bogus completer. */
4239 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4246 /* Parse an FP operand format completer returning the completer
4249 static fp_operand_format
4250 pa_parse_fp_format (s
)
4259 if (strncasecmp (*s
, "sgl", 3) == 0)
4264 else if (strncasecmp (*s
, "dbl", 3) == 0)
4269 else if (strncasecmp (*s
, "quad", 4) == 0)
4276 format
= ILLEGAL_FMT
;
4277 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
4284 /* Convert from a selector string into a selector type. */
4287 pa_chk_field_selector (str
)
4290 int middle
, low
, high
;
4294 /* Read past any whitespace. */
4295 /* FIXME: should we read past newlines and formfeeds??? */
4296 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
4299 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
4300 name
[0] = tolower ((*str
)[0]),
4302 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
4303 name
[0] = tolower ((*str
)[0]),
4304 name
[1] = tolower ((*str
)[1]),
4306 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
4307 name
[0] = tolower ((*str
)[0]),
4308 name
[1] = tolower ((*str
)[1]),
4309 name
[2] = tolower ((*str
)[2]),
4315 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
4319 middle
= (low
+ high
) / 2;
4320 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
4327 *str
+= strlen (name
) + 1;
4329 if (selector_table
[middle
].field_selector
== e_nsel
)
4332 return selector_table
[middle
].field_selector
;
4335 while (low
<= high
);
4340 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
4343 get_expression (str
)
4349 save_in
= input_line_pointer
;
4350 input_line_pointer
= str
;
4351 seg
= expression (&the_insn
.exp
);
4352 if (!(seg
== absolute_section
4353 || seg
== undefined_section
4354 || SEG_NORMAL (seg
)))
4356 as_warn (_("Bad segment in expression."));
4357 expr_end
= input_line_pointer
;
4358 input_line_pointer
= save_in
;
4361 expr_end
= input_line_pointer
;
4362 input_line_pointer
= save_in
;
4366 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
4368 pa_get_absolute_expression (insn
, strp
)
4374 insn
->field_selector
= pa_chk_field_selector (strp
);
4375 save_in
= input_line_pointer
;
4376 input_line_pointer
= *strp
;
4377 expression (&insn
->exp
);
4378 /* This is not perfect, but is a huge improvement over doing nothing.
4380 The PA assembly syntax is ambigious in a variety of ways. Consider
4381 this string "4 %r5" Is that the number 4 followed by the register
4382 r5, or is that 4 MOD 5?
4384 If we get a modulo expresion When looking for an absolute, we try
4385 again cutting off the input string at the first whitespace character. */
4386 if (insn
->exp
.X_op
== O_modulus
)
4391 input_line_pointer
= *strp
;
4393 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4399 retval
= pa_get_absolute_expression (insn
, strp
);
4401 input_line_pointer
= save_in
;
4403 return evaluate_absolute (insn
);
4405 /* When in strict mode we have a non-match, fix up the pointers
4406 and return to our caller. */
4407 if (insn
->exp
.X_op
!= O_constant
&& strict
)
4409 expr_end
= input_line_pointer
;
4410 input_line_pointer
= save_in
;
4413 if (insn
->exp
.X_op
!= O_constant
)
4415 as_bad (_("Bad segment (should be absolute)."));
4416 expr_end
= input_line_pointer
;
4417 input_line_pointer
= save_in
;
4420 expr_end
= input_line_pointer
;
4421 input_line_pointer
= save_in
;
4422 return evaluate_absolute (insn
);
4425 /* Evaluate an absolute expression EXP which may be modified by
4426 the selector FIELD_SELECTOR. Return the value of the expression. */
4428 evaluate_absolute (insn
)
4433 int field_selector
= insn
->field_selector
;
4436 value
= exp
.X_add_number
;
4438 switch (field_selector
)
4444 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4446 if (value
& 0x00000400)
4448 value
= (value
& 0xfffff800) >> 11;
4451 /* Sign extend from bit 21. */
4453 if (value
& 0x00000400)
4454 value
|= 0xfffff800;
4459 /* Arithmetic shift right 11 bits. */
4461 value
= (value
& 0xfffff800) >> 11;
4464 /* Set bits 0-20 to zero. */
4466 value
= value
& 0x7ff;
4469 /* Add 0x800 and arithmetic shift right 11 bits. */
4472 value
= (value
& 0xfffff800) >> 11;
4475 /* Set bitgs 0-21 to one. */
4477 value
|= 0xfffff800;
4480 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
4482 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
4486 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
4491 BAD_CASE (field_selector
);
4497 /* Given an argument location specification return the associated
4498 argument location number. */
4501 pa_build_arg_reloc (type_name
)
4505 if (strncasecmp (type_name
, "no", 2) == 0)
4507 if (strncasecmp (type_name
, "gr", 2) == 0)
4509 else if (strncasecmp (type_name
, "fr", 2) == 0)
4511 else if (strncasecmp (type_name
, "fu", 2) == 0)
4514 as_bad (_("Invalid argument location: %s\n"), type_name
);
4519 /* Encode and return an argument relocation specification for
4520 the given register in the location specified by arg_reloc. */
4523 pa_align_arg_reloc (reg
, arg_reloc
)
4525 unsigned int arg_reloc
;
4527 unsigned int new_reloc
;
4529 new_reloc
= arg_reloc
;
4545 as_bad (_("Invalid argument description: %d"), reg
);
4551 /* Parse a PA nullification completer (,n). Return nonzero if the
4552 completer was found; return zero if no completer was found. */
4564 if (strncasecmp (*s
, "n", 1) == 0)
4568 as_bad (_("Invalid Nullification: (%c)"), **s
);
4577 /* Parse a non-negated compare/subtract completer returning the
4578 number (for encoding in instrutions) of the given completer.
4580 ISBRANCH specifies whether or not this is parsing a condition
4581 completer for a branch (vs a nullification completer for a
4582 computational instruction. */
4585 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4590 char *name
= *s
+ 1;
4599 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4605 if (strcmp (name
, "=") == 0)
4609 else if (strcmp (name
, "<") == 0)
4613 else if (strcmp (name
, "<=") == 0)
4617 else if (strcmp (name
, "<<") == 0)
4621 else if (strcmp (name
, "<<=") == 0)
4625 else if (strcasecmp (name
, "sv") == 0)
4629 else if (strcasecmp (name
, "od") == 0)
4633 /* If we have something like addb,n then there is no condition
4635 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4647 /* Reset pointers if this was really a ,n for a branch instruction. */
4655 /* Parse a negated compare/subtract completer returning the
4656 number (for encoding in instrutions) of the given completer.
4658 ISBRANCH specifies whether or not this is parsing a condition
4659 completer for a branch (vs a nullification completer for a
4660 computational instruction. */
4663 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4668 char *name
= *s
+ 1;
4677 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4683 if (strcasecmp (name
, "tr") == 0)
4687 else if (strcmp (name
, "<>") == 0)
4691 else if (strcmp (name
, ">=") == 0)
4695 else if (strcmp (name
, ">") == 0)
4699 else if (strcmp (name
, ">>=") == 0)
4703 else if (strcmp (name
, ">>") == 0)
4707 else if (strcasecmp (name
, "nsv") == 0)
4711 else if (strcasecmp (name
, "ev") == 0)
4715 /* If we have something like addb,n then there is no condition
4717 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4729 /* Reset pointers if this was really a ,n for a branch instruction. */
4738 /* Parse a non-negated addition completer returning the number
4739 (for encoding in instrutions) of the given completer.
4741 ISBRANCH specifies whether or not this is parsing a condition
4742 completer for a branch (vs a nullification completer for a
4743 computational instruction. */
4746 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4751 char *name
= *s
+ 1;
4759 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4763 if (strcmp (name
, "=") == 0)
4767 else if (strcmp (name
, "<") == 0)
4771 else if (strcmp (name
, "<=") == 0)
4775 else if (strcasecmp (name
, "nuv") == 0)
4779 else if (strcasecmp (name
, "znv") == 0)
4783 else if (strcasecmp (name
, "sv") == 0)
4787 else if (strcasecmp (name
, "od") == 0)
4791 /* If we have something like addb,n then there is no condition
4793 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4804 /* Reset pointers if this was really a ,n for a branch instruction. */
4805 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4811 /* Parse a negated addition completer returning the number
4812 (for encoding in instrutions) of the given completer.
4814 ISBRANCH specifies whether or not this is parsing a condition
4815 completer for a branch (vs a nullification completer for a
4816 computational instruction). */
4819 pa_parse_neg_add_cmpltr (s
, isbranch
)
4824 char *name
= *s
+ 1;
4832 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4836 if (strcasecmp (name
, "tr") == 0)
4840 else if (strcmp (name
, "<>") == 0)
4844 else if (strcmp (name
, ">=") == 0)
4848 else if (strcmp (name
, ">") == 0)
4852 else if (strcasecmp (name
, "uv") == 0)
4856 else if (strcasecmp (name
, "vnz") == 0)
4860 else if (strcasecmp (name
, "nsv") == 0)
4864 else if (strcasecmp (name
, "ev") == 0)
4868 /* If we have something like addb,n then there is no condition
4870 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4881 /* Reset pointers if this was really a ,n for a branch instruction. */
4882 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4889 /* Handle an alignment directive. Special so that we can update the
4890 alignment of the subspace if necessary. */
4894 /* We must have a valid space and subspace. */
4895 pa_check_current_space_and_subspace ();
4897 /* Let the generic gas code do most of the work. */
4898 s_align_bytes (bytes
);
4900 /* If bytes is a power of 2, then update the current subspace's
4901 alignment if necessary. */
4902 if (log2 (bytes
) != -1)
4903 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4907 /* Handle a .BLOCK type pseudo-op. */
4915 unsigned int temp_size
;
4919 /* We must have a valid space and subspace. */
4920 pa_check_current_space_and_subspace ();
4923 temp_size
= get_absolute_expression ();
4925 /* Always fill with zeros, that's what the HP assembler does. */
4928 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4929 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4930 memset (p
, 0, temp_size
);
4932 /* Convert 2 bytes at a time. */
4934 for (i
= 0; i
< temp_size
; i
+= 2)
4936 md_number_to_chars (p
+ i
,
4938 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4941 pa_undefine_label ();
4942 demand_empty_rest_of_line ();
4945 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4953 /* The BRTAB relocations are only availble in SOM (to denote
4954 the beginning and end of branch tables). */
4955 char *where
= frag_more (0);
4957 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4958 NULL
, (offsetT
) 0, NULL
,
4959 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4960 e_fsel
, 0, 0, NULL
);
4963 demand_empty_rest_of_line ();
4966 /* Handle a .begin_try and .end_try pseudo-op. */
4974 char *where
= frag_more (0);
4979 /* The TRY relocations are only availble in SOM (to denote
4980 the beginning and end of exception handling regions). */
4982 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4983 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4984 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4985 e_fsel
, 0, 0, NULL
);
4988 demand_empty_rest_of_line ();
4991 /* Handle a .CALL pseudo-op. This involves storing away information
4992 about where arguments are to be found so the linker can detect
4993 (and correct) argument location mismatches between caller and callee. */
5000 /* We must have a valid space and subspace. */
5001 pa_check_current_space_and_subspace ();
5004 pa_call_args (&last_call_desc
);
5005 demand_empty_rest_of_line ();
5008 /* Do the dirty work of building a call descriptor which describes
5009 where the caller placed arguments to a function call. */
5012 pa_call_args (call_desc
)
5013 struct call_desc
*call_desc
;
5016 unsigned int temp
, arg_reloc
;
5018 while (!is_end_of_statement ())
5020 name
= input_line_pointer
;
5021 c
= get_symbol_end ();
5022 /* Process a source argument. */
5023 if ((strncasecmp (name
, "argw", 4) == 0))
5025 temp
= atoi (name
+ 4);
5026 p
= input_line_pointer
;
5028 input_line_pointer
++;
5029 name
= input_line_pointer
;
5030 c
= get_symbol_end ();
5031 arg_reloc
= pa_build_arg_reloc (name
);
5032 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
5034 /* Process a return value. */
5035 else if ((strncasecmp (name
, "rtnval", 6) == 0))
5037 p
= input_line_pointer
;
5039 input_line_pointer
++;
5040 name
= input_line_pointer
;
5041 c
= get_symbol_end ();
5042 arg_reloc
= pa_build_arg_reloc (name
);
5043 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
5047 as_bad (_("Invalid .CALL argument: %s"), name
);
5049 p
= input_line_pointer
;
5051 if (!is_end_of_statement ())
5052 input_line_pointer
++;
5056 /* Return TRUE if FRAG1 and FRAG2 are the same. */
5059 is_same_frag (frag1
, frag2
)
5066 else if (frag2
== NULL
)
5068 else if (frag1
== frag2
)
5070 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
5071 return (is_same_frag (frag1
, frag2
->fr_next
));
5077 /* Build an entry in the UNWIND subspace from the given function
5078 attributes in CALL_INFO. This is not needed for SOM as using
5079 R_ENTRY and R_EXIT relocations allow the linker to handle building
5080 of the unwind spaces. */
5083 pa_build_unwind_subspace (call_info
)
5084 struct call_info
*call_info
;
5087 asection
*seg
, *save_seg
;
5089 subsegT subseg
, save_subseg
;
5093 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
5094 reloc
= R_PARISC_DIR32
;
5096 reloc
= R_PARISC_SEGREL32
;
5098 /* Get into the right seg/subseg. This may involve creating
5099 the seg the first time through. Make sure to have the
5100 old seg/subseg so that we can reset things when we are done. */
5101 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
5102 if (seg
== ASEC_NULL
)
5104 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
5105 bfd_set_section_flags (stdoutput
, seg
,
5106 SEC_READONLY
| SEC_HAS_CONTENTS
5107 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
5108 bfd_set_section_alignment (stdoutput
, seg
, 2);
5112 save_subseg
= now_subseg
;
5113 subseg_set (seg
, 0);
5116 /* Get some space to hold relocation information for the unwind
5119 md_number_to_chars (p
, 0, 4);
5121 /* Relocation info. for start offset of the function. */
5122 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
5123 call_info
->start_symbol
, (offsetT
) 0,
5124 (expressionS
*) NULL
, 0, reloc
,
5125 e_fsel
, 32, 0, NULL
);
5128 md_number_to_chars (p
, 0, 4);
5130 /* Relocation info. for end offset of the function.
5132 Because we allow reductions of 32bit relocations for ELF, this will be
5133 reduced to section_sym + offset which avoids putting the temporary
5134 symbol into the symbol table. It (should) end up giving the same
5135 value as call_info->start_symbol + function size once the linker is
5136 finished with its work. */
5138 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
5139 call_info
->end_symbol
, (offsetT
) 0,
5140 (expressionS
*) NULL
, 0, reloc
,
5141 e_fsel
, 32, 0, NULL
);
5144 unwind
= (char *) &call_info
->ci_unwind
;
5145 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
5149 FRAG_APPEND_1_CHAR (c
);
5153 /* Return back to the original segment/subsegment. */
5154 subseg_set (save_seg
, save_subseg
);
5158 /* Process a .CALLINFO pseudo-op. This information is used later
5159 to build unwind descriptors and maybe one day to support
5160 .ENTER and .LEAVE. */
5163 pa_callinfo (unused
)
5170 /* We must have a valid space and subspace. */
5171 pa_check_current_space_and_subspace ();
5174 /* .CALLINFO must appear within a procedure definition. */
5175 if (!within_procedure
)
5176 as_bad (_(".callinfo is not within a procedure definition"));
5178 /* Mark the fact that we found the .CALLINFO for the
5179 current procedure. */
5180 callinfo_found
= TRUE
;
5182 /* Iterate over the .CALLINFO arguments. */
5183 while (!is_end_of_statement ())
5185 name
= input_line_pointer
;
5186 c
= get_symbol_end ();
5187 /* Frame size specification. */
5188 if ((strncasecmp (name
, "frame", 5) == 0))
5190 p
= input_line_pointer
;
5192 input_line_pointer
++;
5193 temp
= get_absolute_expression ();
5194 if ((temp
& 0x3) != 0)
5196 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
5200 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5201 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
5204 /* Entry register (GR, GR and SR) specifications. */
5205 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
5207 p
= input_line_pointer
;
5209 input_line_pointer
++;
5210 temp
= get_absolute_expression ();
5211 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5212 even though %r19 is caller saved. I think this is a bug in
5213 the HP assembler, and we are not going to emulate it. */
5214 if (temp
< 3 || temp
> 18)
5215 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5216 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
5218 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
5220 p
= input_line_pointer
;
5222 input_line_pointer
++;
5223 temp
= get_absolute_expression ();
5224 /* Similarly the HP assembler takes 31 as the high bound even
5225 though %fr21 is the last callee saved floating point register. */
5226 if (temp
< 12 || temp
> 21)
5227 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5228 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
5230 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
5232 p
= input_line_pointer
;
5234 input_line_pointer
++;
5235 temp
= get_absolute_expression ();
5237 as_bad (_("Value for ENTRY_SR must be 3\n"));
5239 /* Note whether or not this function performs any calls. */
5240 else if ((strncasecmp (name
, "calls", 5) == 0) ||
5241 (strncasecmp (name
, "caller", 6) == 0))
5243 p
= input_line_pointer
;
5246 else if ((strncasecmp (name
, "no_calls", 8) == 0))
5248 p
= input_line_pointer
;
5251 /* Should RP be saved into the stack. */
5252 else if ((strncasecmp (name
, "save_rp", 7) == 0))
5254 p
= input_line_pointer
;
5256 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
5258 /* Likewise for SP. */
5259 else if ((strncasecmp (name
, "save_sp", 7) == 0))
5261 p
= input_line_pointer
;
5263 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
5265 /* Is this an unwindable procedure. If so mark it so
5266 in the unwind descriptor. */
5267 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
5269 p
= input_line_pointer
;
5271 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
5273 /* Is this an interrupt routine. If so mark it in the
5274 unwind descriptor. */
5275 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
5277 p
= input_line_pointer
;
5279 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
5281 /* Is this a millicode routine. "millicode" isn't in my
5282 assembler manual, but my copy is old. The HP assembler
5283 accepts it, and there's a place in the unwind descriptor
5284 to drop the information, so we'll accept it too. */
5285 else if ((strncasecmp (name
, "millicode", 9) == 0))
5287 p
= input_line_pointer
;
5289 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
5293 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
5294 *input_line_pointer
= c
;
5296 if (!is_end_of_statement ())
5297 input_line_pointer
++;
5300 demand_empty_rest_of_line ();
5303 /* Switch into the code subspace. */
5310 current_space
= is_defined_space ("$TEXT$");
5312 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
5315 pa_undefine_label ();
5318 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5319 the .comm pseudo-op has the following symtax:
5321 <label> .comm <length>
5323 where <label> is optional and is a symbol whose address will be the start of
5324 a block of memory <length> bytes long. <length> must be an absolute
5325 expression. <length> bytes will be allocated in the current space
5328 Also note the label may not even be on the same line as the .comm.
5330 This difference in syntax means the colon function will be called
5331 on the symbol before we arrive in pa_comm. colon will set a number
5332 of attributes of the symbol that need to be fixed here. In particular
5333 the value, section pointer, fragment pointer, flags, etc. What
5336 This also makes error detection all but impossible. */
5344 label_symbol_struct
*label_symbol
= pa_get_label ();
5347 symbol
= label_symbol
->lss_label
;
5352 size
= get_absolute_expression ();
5356 S_SET_VALUE (symbol
, size
);
5357 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5358 S_SET_EXTERNAL (symbol
);
5360 /* colon() has already set the frag to the current location in the
5361 current subspace; we need to reset the fragment to the zero address
5362 fragment. We also need to reset the segment pointer. */
5363 symbol_set_frag (symbol
, &zero_address_frag
);
5365 demand_empty_rest_of_line ();
5368 /* Process a .END pseudo-op. */
5374 demand_empty_rest_of_line ();
5377 /* Process a .ENTER pseudo-op. This is not supported. */
5383 /* We must have a valid space and subspace. */
5384 pa_check_current_space_and_subspace ();
5387 as_bad (_("The .ENTER pseudo-op is not supported"));
5388 demand_empty_rest_of_line ();
5391 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5398 /* We must have a valid space and subspace. */
5399 pa_check_current_space_and_subspace ();
5402 if (!within_procedure
)
5403 as_bad (_("Misplaced .entry. Ignored."));
5406 if (!callinfo_found
)
5407 as_bad (_("Missing .callinfo."));
5409 demand_empty_rest_of_line ();
5410 within_entry_exit
= TRUE
;
5413 /* SOM defers building of unwind descriptors until the link phase.
5414 The assembler is responsible for creating an R_ENTRY relocation
5415 to mark the beginning of a region and hold the unwind bits, and
5416 for creating an R_EXIT relocation to mark the end of the region.
5418 FIXME. ELF should be using the same conventions! The problem
5419 is an unwind requires too much relocation space. Hmmm. Maybe
5420 if we split the unwind bits up between the relocations which
5421 denote the entry and exit points. */
5422 if (last_call_info
->start_symbol
!= NULL
)
5424 char *where
= frag_more (0);
5426 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5427 NULL
, (offsetT
) 0, NULL
,
5428 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5429 (int *) &last_call_info
->ci_unwind
.descriptor
);
5434 /* Handle a .EQU pseudo-op. */
5440 label_symbol_struct
*label_symbol
= pa_get_label ();
5445 symbol
= label_symbol
->lss_label
;
5447 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
5449 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
5450 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
5455 as_bad (_(".REG must use a label"));
5457 as_bad (_(".EQU must use a label"));
5460 pa_undefine_label ();
5461 demand_empty_rest_of_line ();
5464 /* Helper function. Does processing for the end of a function. This
5465 usually involves creating some relocations or building special
5466 symbols to mark the end of the function. */
5473 where
= frag_more (0);
5476 /* Mark the end of the function, stuff away the location of the frag
5477 for the end of the function, and finally call pa_build_unwind_subspace
5478 to add an entry in the unwind table. */
5479 hppa_elf_mark_end_of_function ();
5480 pa_build_unwind_subspace (last_call_info
);
5482 /* SOM defers building of unwind descriptors until the link phase.
5483 The assembler is responsible for creating an R_ENTRY relocation
5484 to mark the beginning of a region and hold the unwind bits, and
5485 for creating an R_EXIT relocation to mark the end of the region.
5487 FIXME. ELF should be using the same conventions! The problem
5488 is an unwind requires too much relocation space. Hmmm. Maybe
5489 if we split the unwind bits up between the relocations which
5490 denote the entry and exit points. */
5491 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5493 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
5494 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
5498 /* Process a .EXIT pseudo-op. */
5505 /* We must have a valid space and subspace. */
5506 pa_check_current_space_and_subspace ();
5509 if (!within_procedure
)
5510 as_bad (_(".EXIT must appear within a procedure"));
5513 if (!callinfo_found
)
5514 as_bad (_("Missing .callinfo"));
5517 if (!within_entry_exit
)
5518 as_bad (_("No .ENTRY for this .EXIT"));
5521 within_entry_exit
= FALSE
;
5526 demand_empty_rest_of_line ();
5529 /* Process a .EXPORT directive. This makes functions external
5530 and provides information such as argument relocation entries
5540 name
= input_line_pointer
;
5541 c
= get_symbol_end ();
5542 /* Make sure the given symbol exists. */
5543 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5545 as_bad (_("Cannot define export symbol: %s\n"), name
);
5546 p
= input_line_pointer
;
5548 input_line_pointer
++;
5552 /* OK. Set the external bits and process argument relocations. */
5553 S_SET_EXTERNAL (symbol
);
5554 p
= input_line_pointer
;
5556 if (!is_end_of_statement ())
5558 input_line_pointer
++;
5559 pa_type_args (symbol
, 1);
5563 demand_empty_rest_of_line ();
5566 /* Helper function to process arguments to a .EXPORT pseudo-op. */
5569 pa_type_args (symbolP
, is_export
)
5574 unsigned int temp
, arg_reloc
;
5575 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5576 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5578 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5581 input_line_pointer
+= 8;
5582 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5583 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5584 type
= SYMBOL_TYPE_ABSOLUTE
;
5586 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5588 input_line_pointer
+= 4;
5589 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5590 instead one should be IMPORTing/EXPORTing ENTRY types.
5592 Complain if one tries to EXPORT a CODE type since that's never
5593 done. Both GCC and HP C still try to IMPORT CODE types, so
5594 silently fix them to be ENTRY types. */
5595 if (S_IS_FUNCTION (symbolP
))
5598 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5599 S_GET_NAME (symbolP
));
5601 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5602 type
= SYMBOL_TYPE_ENTRY
;
5606 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5607 type
= SYMBOL_TYPE_CODE
;
5610 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5612 input_line_pointer
+= 4;
5613 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5614 type
= SYMBOL_TYPE_DATA
;
5616 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5618 input_line_pointer
+= 5;
5619 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5620 type
= SYMBOL_TYPE_ENTRY
;
5622 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5624 input_line_pointer
+= 9;
5625 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5626 type
= SYMBOL_TYPE_MILLICODE
;
5628 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5630 input_line_pointer
+= 6;
5631 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5632 type
= SYMBOL_TYPE_PLABEL
;
5634 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5636 input_line_pointer
+= 8;
5637 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5638 type
= SYMBOL_TYPE_PRI_PROG
;
5640 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5642 input_line_pointer
+= 8;
5643 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5644 type
= SYMBOL_TYPE_SEC_PROG
;
5647 /* SOM requires much more information about symbol types
5648 than BFD understands. This is how we get this information
5649 to the SOM BFD backend. */
5650 #ifdef obj_set_symbol_type
5651 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5654 /* Now that the type of the exported symbol has been handled,
5655 handle any argument relocation information. */
5656 while (!is_end_of_statement ())
5658 if (*input_line_pointer
== ',')
5659 input_line_pointer
++;
5660 name
= input_line_pointer
;
5661 c
= get_symbol_end ();
5662 /* Argument sources. */
5663 if ((strncasecmp (name
, "argw", 4) == 0))
5665 p
= input_line_pointer
;
5667 input_line_pointer
++;
5668 temp
= atoi (name
+ 4);
5669 name
= input_line_pointer
;
5670 c
= get_symbol_end ();
5671 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5673 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5675 *input_line_pointer
= c
;
5677 /* The return value. */
5678 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5680 p
= input_line_pointer
;
5682 input_line_pointer
++;
5683 name
= input_line_pointer
;
5684 c
= get_symbol_end ();
5685 arg_reloc
= pa_build_arg_reloc (name
);
5687 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5689 *input_line_pointer
= c
;
5691 /* Privelege level. */
5692 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5694 p
= input_line_pointer
;
5696 input_line_pointer
++;
5697 temp
= atoi (input_line_pointer
);
5699 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5701 c
= get_symbol_end ();
5702 *input_line_pointer
= c
;
5706 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5707 p
= input_line_pointer
;
5710 if (!is_end_of_statement ())
5711 input_line_pointer
++;
5715 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5716 assembly file must either be defined in the assembly file, or
5717 explicitly IMPORTED from another. */
5726 name
= input_line_pointer
;
5727 c
= get_symbol_end ();
5729 symbol
= symbol_find (name
);
5730 /* Ugh. We might be importing a symbol defined earlier in the file,
5731 in which case all the code below will really screw things up
5732 (set the wrong segment, symbol flags & type, etc). */
5733 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5735 symbol
= symbol_find_or_make (name
);
5736 p
= input_line_pointer
;
5739 if (!is_end_of_statement ())
5741 input_line_pointer
++;
5742 pa_type_args (symbol
, 0);
5746 /* Sigh. To be compatable with the HP assembler and to help
5747 poorly written assembly code, we assign a type based on
5748 the the current segment. Note only BSF_FUNCTION really
5749 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5750 if (now_seg
== text_section
)
5751 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5753 /* If the section is undefined, then the symbol is undefined
5754 Since this is an import, leave the section undefined. */
5755 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5760 /* The symbol was already defined. Just eat everything up to
5761 the end of the current statement. */
5762 while (!is_end_of_statement ())
5763 input_line_pointer
++;
5766 demand_empty_rest_of_line ();
5769 /* Handle a .LABEL pseudo-op. */
5777 name
= input_line_pointer
;
5778 c
= get_symbol_end ();
5780 if (strlen (name
) > 0)
5783 p
= input_line_pointer
;
5788 as_warn (_("Missing label name on .LABEL"));
5791 if (!is_end_of_statement ())
5793 as_warn (_("extra .LABEL arguments ignored."));
5794 ignore_rest_of_line ();
5796 demand_empty_rest_of_line ();
5799 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5806 /* We must have a valid space and subspace. */
5807 pa_check_current_space_and_subspace ();
5810 as_bad (_("The .LEAVE pseudo-op is not supported"));
5811 demand_empty_rest_of_line ();
5814 /* Handle a .LEVEL pseudo-op. */
5822 level
= input_line_pointer
;
5823 if (strncmp (level
, "1.0", 3) == 0)
5825 input_line_pointer
+= 3;
5826 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5827 as_warn (_("could not set architecture and machine"));
5829 else if (strncmp (level
, "1.1", 3) == 0)
5831 input_line_pointer
+= 3;
5832 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5833 as_warn (_("could not set architecture and machine"));
5835 else if (strncmp (level
, "2.0w", 4) == 0)
5837 input_line_pointer
+= 4;
5838 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5839 as_warn (_("could not set architecture and machine"));
5841 else if (strncmp (level
, "2.0", 3) == 0)
5843 input_line_pointer
+= 3;
5844 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5845 as_warn (_("could not set architecture and machine"));
5849 as_bad (_("Unrecognized .LEVEL argument\n"));
5850 ignore_rest_of_line ();
5852 demand_empty_rest_of_line ();
5855 /* Handle a .ORIGIN pseudo-op. */
5862 /* We must have a valid space and subspace. */
5863 pa_check_current_space_and_subspace ();
5867 pa_undefine_label ();
5870 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5871 is for static functions. FIXME. Should share more code with .EXPORT. */
5880 name
= input_line_pointer
;
5881 c
= get_symbol_end ();
5883 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5885 as_bad (_("Cannot define static symbol: %s\n"), name
);
5886 p
= input_line_pointer
;
5888 input_line_pointer
++;
5892 S_CLEAR_EXTERNAL (symbol
);
5893 p
= input_line_pointer
;
5895 if (!is_end_of_statement ())
5897 input_line_pointer
++;
5898 pa_type_args (symbol
, 0);
5902 demand_empty_rest_of_line ();
5905 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5906 of a procedure from a syntatical point of view. */
5912 struct call_info
*call_info
;
5915 /* We must have a valid space and subspace. */
5916 pa_check_current_space_and_subspace ();
5919 if (within_procedure
)
5920 as_fatal (_("Nested procedures"));
5922 /* Reset global variables for new procedure. */
5923 callinfo_found
= FALSE
;
5924 within_procedure
= TRUE
;
5926 /* Create another call_info structure. */
5927 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5930 as_fatal (_("Cannot allocate unwind descriptor\n"));
5932 memset (call_info
, 0, sizeof (struct call_info
));
5934 call_info
->ci_next
= NULL
;
5936 if (call_info_root
== NULL
)
5938 call_info_root
= call_info
;
5939 last_call_info
= call_info
;
5943 last_call_info
->ci_next
= call_info
;
5944 last_call_info
= call_info
;
5947 /* set up defaults on call_info structure */
5949 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5950 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5951 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5953 /* If we got a .PROC pseudo-op, we know that the function is defined
5954 locally. Make sure it gets into the symbol table. */
5956 label_symbol_struct
*label_symbol
= pa_get_label ();
5960 if (label_symbol
->lss_label
)
5962 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5963 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5966 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5969 last_call_info
->start_symbol
= NULL
;
5972 demand_empty_rest_of_line ();
5975 /* Process the syntatical end of a procedure. Make sure all the
5976 appropriate pseudo-ops were found within the procedure. */
5984 /* We must have a valid space and subspace. */
5985 pa_check_current_space_and_subspace ();
5988 /* If we are within a procedure definition, make sure we've
5989 defined a label for the procedure; handle case where the
5990 label was defined after the .PROC directive.
5992 Note there's not need to diddle with the segment or fragment
5993 for the label symbol in this case. We have already switched
5994 into the new $CODE$ subspace at this point. */
5995 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5997 label_symbol_struct
*label_symbol
= pa_get_label ();
6001 if (label_symbol
->lss_label
)
6003 last_call_info
->start_symbol
= label_symbol
->lss_label
;
6004 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
6007 /* Also handle allocation of a fixup to hold the unwind
6008 information when the label appears after the proc/procend. */
6009 if (within_entry_exit
)
6011 char *where
= frag_more (0);
6013 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
6014 NULL
, (offsetT
) 0, NULL
,
6015 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
6016 (int *) &last_call_info
->ci_unwind
.descriptor
);
6021 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6024 as_bad (_("Missing function name for .PROC"));
6027 if (!within_procedure
)
6028 as_bad (_("misplaced .procend"));
6030 if (!callinfo_found
)
6031 as_bad (_("Missing .callinfo for this procedure"));
6033 if (within_entry_exit
)
6034 as_bad (_("Missing .EXIT for a .ENTRY"));
6037 /* ELF needs to mark the end of each function so that it can compute
6038 the size of the function (apparently its needed in the symbol table). */
6039 hppa_elf_mark_end_of_function ();
6042 within_procedure
= FALSE
;
6043 demand_empty_rest_of_line ();
6044 pa_undefine_label ();
6047 /* If VALUE is an exact power of two between zero and 2^31, then
6048 return log2 (VALUE). Else return -1. */
6056 while ((1 << shift
) != value
&& shift
< 32)
6067 /* Check to make sure we have a valid space and subspace. */
6070 pa_check_current_space_and_subspace ()
6072 if (current_space
== NULL
)
6073 as_fatal (_("Not in a space.\n"));
6075 if (current_subspace
== NULL
)
6076 as_fatal (_("Not in a subspace.\n"));
6079 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
6080 then create a new space entry to hold the information specified
6081 by the parameters to the .SPACE directive. */
6083 static sd_chain_struct
*
6084 pa_parse_space_stmt (space_name
, create_flag
)
6088 char *name
, *ptemp
, c
;
6089 char loadable
, defined
, private, sort
;
6091 asection
*seg
= NULL
;
6092 sd_chain_struct
*space
;
6094 /* load default values */
6100 if (strcmp (space_name
, "$TEXT$") == 0)
6102 seg
= pa_def_spaces
[0].segment
;
6103 defined
= pa_def_spaces
[0].defined
;
6104 private = pa_def_spaces
[0].private;
6105 sort
= pa_def_spaces
[0].sort
;
6106 spnum
= pa_def_spaces
[0].spnum
;
6108 else if (strcmp (space_name
, "$PRIVATE$") == 0)
6110 seg
= pa_def_spaces
[1].segment
;
6111 defined
= pa_def_spaces
[1].defined
;
6112 private = pa_def_spaces
[1].private;
6113 sort
= pa_def_spaces
[1].sort
;
6114 spnum
= pa_def_spaces
[1].spnum
;
6117 if (!is_end_of_statement ())
6119 print_errors
= FALSE
;
6120 ptemp
= input_line_pointer
+ 1;
6121 /* First see if the space was specified as a number rather than
6122 as a name. According to the PA assembly manual the rest of
6123 the line should be ignored. */
6124 temp
= pa_parse_number (&ptemp
, 0);
6128 input_line_pointer
= ptemp
;
6132 while (!is_end_of_statement ())
6134 input_line_pointer
++;
6135 name
= input_line_pointer
;
6136 c
= get_symbol_end ();
6137 if ((strncasecmp (name
, "spnum", 5) == 0))
6139 *input_line_pointer
= c
;
6140 input_line_pointer
++;
6141 spnum
= get_absolute_expression ();
6143 else if ((strncasecmp (name
, "sort", 4) == 0))
6145 *input_line_pointer
= c
;
6146 input_line_pointer
++;
6147 sort
= get_absolute_expression ();
6149 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6151 *input_line_pointer
= c
;
6154 else if ((strncasecmp (name
, "notdefined", 10) == 0))
6156 *input_line_pointer
= c
;
6159 else if ((strncasecmp (name
, "private", 7) == 0))
6161 *input_line_pointer
= c
;
6166 as_bad (_("Invalid .SPACE argument"));
6167 *input_line_pointer
= c
;
6168 if (!is_end_of_statement ())
6169 input_line_pointer
++;
6173 print_errors
= TRUE
;
6176 if (create_flag
&& seg
== NULL
)
6177 seg
= subseg_new (space_name
, 0);
6179 /* If create_flag is nonzero, then create the new space with
6180 the attributes computed above. Else set the values in
6181 an already existing space -- this can only happen for
6182 the first occurence of a built-in space. */
6184 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
6185 private, sort
, seg
, 1);
6188 space
= is_defined_space (space_name
);
6189 SPACE_SPNUM (space
) = spnum
;
6190 SPACE_DEFINED (space
) = defined
& 1;
6191 SPACE_USER_DEFINED (space
) = 1;
6194 #ifdef obj_set_section_attributes
6195 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6201 /* Handle a .SPACE pseudo-op; this switches the current space to the
6202 given space, creating the new space if necessary. */
6208 char *name
, c
, *space_name
, *save_s
;
6210 sd_chain_struct
*sd_chain
;
6212 if (within_procedure
)
6214 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6215 ignore_rest_of_line ();
6219 /* Check for some of the predefined spaces. FIXME: most of the code
6220 below is repeated several times, can we extract the common parts
6221 and place them into a subroutine or something similar? */
6222 /* FIXME Is this (and the next IF stmt) really right?
6223 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6224 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
6226 input_line_pointer
+= 6;
6227 sd_chain
= is_defined_space ("$TEXT$");
6228 if (sd_chain
== NULL
)
6229 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
6230 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6231 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
6233 current_space
= sd_chain
;
6234 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
6236 = pa_subsegment_to_subspace (text_section
,
6237 sd_chain
->sd_last_subseg
);
6238 demand_empty_rest_of_line ();
6241 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
6243 input_line_pointer
+= 9;
6244 sd_chain
= is_defined_space ("$PRIVATE$");
6245 if (sd_chain
== NULL
)
6246 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
6247 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6248 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
6250 current_space
= sd_chain
;
6251 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
6253 = pa_subsegment_to_subspace (data_section
,
6254 sd_chain
->sd_last_subseg
);
6255 demand_empty_rest_of_line ();
6258 if (!strncasecmp (input_line_pointer
,
6259 GDB_DEBUG_SPACE_NAME
,
6260 strlen (GDB_DEBUG_SPACE_NAME
)))
6262 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
6263 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
6264 if (sd_chain
== NULL
)
6265 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
6266 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6267 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
6269 current_space
= sd_chain
;
6272 asection
*gdb_section
6273 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
6275 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
6277 = pa_subsegment_to_subspace (gdb_section
,
6278 sd_chain
->sd_last_subseg
);
6280 demand_empty_rest_of_line ();
6284 /* It could be a space specified by number. */
6286 save_s
= input_line_pointer
;
6287 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
6289 if ((sd_chain
= pa_find_space_by_number (temp
)))
6291 current_space
= sd_chain
;
6293 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6295 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6296 sd_chain
->sd_last_subseg
);
6297 demand_empty_rest_of_line ();
6302 /* Not a number, attempt to create a new space. */
6304 input_line_pointer
= save_s
;
6305 name
= input_line_pointer
;
6306 c
= get_symbol_end ();
6307 space_name
= xmalloc (strlen (name
) + 1);
6308 strcpy (space_name
, name
);
6309 *input_line_pointer
= c
;
6311 sd_chain
= pa_parse_space_stmt (space_name
, 1);
6312 current_space
= sd_chain
;
6314 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6315 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6316 sd_chain
->sd_last_subseg
);
6317 demand_empty_rest_of_line ();
6321 /* Switch to a new space. (I think). FIXME. */
6330 sd_chain_struct
*space
;
6332 name
= input_line_pointer
;
6333 c
= get_symbol_end ();
6334 space
= is_defined_space (name
);
6338 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
6341 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
6343 *input_line_pointer
= c
;
6344 demand_empty_rest_of_line ();
6347 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6348 given subspace, creating the new subspace if necessary.
6350 FIXME. Should mirror pa_space more closely, in particular how
6351 they're broken up into subroutines. */
6354 pa_subspace (create_new
)
6357 char *name
, *ss_name
, c
;
6358 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
6359 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
6360 sd_chain_struct
*space
;
6361 ssd_chain_struct
*ssd
;
6364 if (current_space
== NULL
)
6365 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6367 if (within_procedure
)
6369 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6370 ignore_rest_of_line ();
6374 name
= input_line_pointer
;
6375 c
= get_symbol_end ();
6376 ss_name
= xmalloc (strlen (name
) + 1);
6377 strcpy (ss_name
, name
);
6378 *input_line_pointer
= c
;
6380 /* Load default values. */
6392 space
= current_space
;
6396 ssd
= is_defined_subspace (ss_name
);
6397 /* Allow user to override the builtin attributes of subspaces. But
6398 only allow the attributes to be changed once! */
6399 if (ssd
&& SUBSPACE_DEFINED (ssd
))
6401 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
6402 current_subspace
= ssd
;
6403 if (!is_end_of_statement ())
6404 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6405 demand_empty_rest_of_line ();
6410 /* A new subspace. Load default values if it matches one of
6411 the builtin subspaces. */
6413 while (pa_def_subspaces
[i
].name
)
6415 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
6417 loadable
= pa_def_subspaces
[i
].loadable
;
6418 common
= pa_def_subspaces
[i
].common
;
6419 dup_common
= pa_def_subspaces
[i
].dup_common
;
6420 code_only
= pa_def_subspaces
[i
].code_only
;
6421 zero
= pa_def_subspaces
[i
].zero
;
6422 space_index
= pa_def_subspaces
[i
].space_index
;
6423 alignment
= pa_def_subspaces
[i
].alignment
;
6424 quadrant
= pa_def_subspaces
[i
].quadrant
;
6425 access
= pa_def_subspaces
[i
].access
;
6426 sort
= pa_def_subspaces
[i
].sort
;
6433 /* We should be working with a new subspace now. Fill in
6434 any information as specified by the user. */
6435 if (!is_end_of_statement ())
6437 input_line_pointer
++;
6438 while (!is_end_of_statement ())
6440 name
= input_line_pointer
;
6441 c
= get_symbol_end ();
6442 if ((strncasecmp (name
, "quad", 4) == 0))
6444 *input_line_pointer
= c
;
6445 input_line_pointer
++;
6446 quadrant
= get_absolute_expression ();
6448 else if ((strncasecmp (name
, "align", 5) == 0))
6450 *input_line_pointer
= c
;
6451 input_line_pointer
++;
6452 alignment
= get_absolute_expression ();
6453 if (log2 (alignment
) == -1)
6455 as_bad (_("Alignment must be a power of 2"));
6459 else if ((strncasecmp (name
, "access", 6) == 0))
6461 *input_line_pointer
= c
;
6462 input_line_pointer
++;
6463 access
= get_absolute_expression ();
6465 else if ((strncasecmp (name
, "sort", 4) == 0))
6467 *input_line_pointer
= c
;
6468 input_line_pointer
++;
6469 sort
= get_absolute_expression ();
6471 else if ((strncasecmp (name
, "code_only", 9) == 0))
6473 *input_line_pointer
= c
;
6476 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6478 *input_line_pointer
= c
;
6481 else if ((strncasecmp (name
, "common", 6) == 0))
6483 *input_line_pointer
= c
;
6486 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
6488 *input_line_pointer
= c
;
6491 else if ((strncasecmp (name
, "zero", 4) == 0))
6493 *input_line_pointer
= c
;
6496 else if ((strncasecmp (name
, "first", 5) == 0))
6497 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
6499 as_bad (_("Invalid .SUBSPACE argument"));
6500 if (!is_end_of_statement ())
6501 input_line_pointer
++;
6505 /* Compute a reasonable set of BFD flags based on the information
6506 in the .subspace directive. */
6507 applicable
= bfd_applicable_section_flags (stdoutput
);
6510 flags
|= (SEC_ALLOC
| SEC_LOAD
);
6513 if (common
|| dup_common
)
6514 flags
|= SEC_IS_COMMON
;
6516 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
6518 /* This is a zero-filled subspace (eg BSS). */
6520 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
6522 applicable
&= flags
;
6524 /* If this is an existing subspace, then we want to use the
6525 segment already associated with the subspace.
6527 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6528 lots of sections. It might be a problem in the PA ELF
6529 code, I do not know yet. For now avoid creating anything
6530 but the "standard" sections for ELF. */
6532 section
= subseg_force_new (ss_name
, 0);
6534 section
= ssd
->ssd_seg
;
6536 section
= subseg_new (ss_name
, 0);
6539 seg_info (section
)->bss
= 1;
6541 /* Now set the flags. */
6542 bfd_set_section_flags (stdoutput
, section
, applicable
);
6544 /* Record any alignment request for this section. */
6545 record_alignment (section
, log2 (alignment
));
6547 /* Set the starting offset for this section. */
6548 bfd_set_section_vma (stdoutput
, section
,
6549 pa_subspace_start (space
, quadrant
));
6551 /* Now that all the flags are set, update an existing subspace,
6552 or create a new one. */
6555 current_subspace
= update_subspace (space
, ss_name
, loadable
,
6556 code_only
, common
, dup_common
,
6557 sort
, zero
, access
, space_index
,
6558 alignment
, quadrant
,
6561 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
6563 dup_common
, zero
, sort
,
6564 access
, space_index
,
6565 alignment
, quadrant
, section
);
6567 demand_empty_rest_of_line ();
6568 current_subspace
->ssd_seg
= section
;
6569 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6571 SUBSPACE_DEFINED (current_subspace
) = 1;
6575 /* Create default space and subspace dictionaries. */
6582 space_dict_root
= NULL
;
6583 space_dict_last
= NULL
;
6586 while (pa_def_spaces
[i
].name
)
6590 /* Pick the right name to use for the new section. */
6591 name
= pa_def_spaces
[i
].name
;
6593 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6594 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6595 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6596 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6597 pa_def_spaces
[i
].segment
, 0);
6602 while (pa_def_subspaces
[i
].name
)
6605 int applicable
, subsegment
;
6606 asection
*segment
= NULL
;
6607 sd_chain_struct
*space
;
6609 /* Pick the right name for the new section and pick the right
6610 subsegment number. */
6611 name
= pa_def_subspaces
[i
].name
;
6614 /* Create the new section. */
6615 segment
= subseg_new (name
, subsegment
);
6618 /* For SOM we want to replace the standard .text, .data, and .bss
6619 sections with our own. We also want to set BFD flags for
6620 all the built-in subspaces. */
6621 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6623 text_section
= segment
;
6624 applicable
= bfd_applicable_section_flags (stdoutput
);
6625 bfd_set_section_flags (stdoutput
, segment
,
6626 applicable
& (SEC_ALLOC
| SEC_LOAD
6627 | SEC_RELOC
| SEC_CODE
6629 | SEC_HAS_CONTENTS
));
6631 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6633 data_section
= segment
;
6634 applicable
= bfd_applicable_section_flags (stdoutput
);
6635 bfd_set_section_flags (stdoutput
, segment
,
6636 applicable
& (SEC_ALLOC
| SEC_LOAD
6638 | SEC_HAS_CONTENTS
));
6642 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6644 bss_section
= segment
;
6645 applicable
= bfd_applicable_section_flags (stdoutput
);
6646 bfd_set_section_flags (stdoutput
, segment
,
6647 applicable
& SEC_ALLOC
);
6649 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6651 applicable
= bfd_applicable_section_flags (stdoutput
);
6652 bfd_set_section_flags (stdoutput
, segment
,
6653 applicable
& (SEC_ALLOC
| SEC_LOAD
6656 | SEC_HAS_CONTENTS
));
6658 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6660 applicable
= bfd_applicable_section_flags (stdoutput
);
6661 bfd_set_section_flags (stdoutput
, segment
,
6662 applicable
& (SEC_ALLOC
| SEC_LOAD
6665 | SEC_HAS_CONTENTS
));
6667 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6669 applicable
= bfd_applicable_section_flags (stdoutput
);
6670 bfd_set_section_flags (stdoutput
, segment
,
6671 applicable
& (SEC_ALLOC
| SEC_LOAD
6674 | SEC_HAS_CONTENTS
));
6677 /* Find the space associated with this subspace. */
6678 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6679 def_space_index
].segment
);
6682 as_fatal (_("Internal error: Unable to find containing space for %s."),
6683 pa_def_subspaces
[i
].name
);
6686 create_new_subspace (space
, name
,
6687 pa_def_subspaces
[i
].loadable
,
6688 pa_def_subspaces
[i
].code_only
,
6689 pa_def_subspaces
[i
].common
,
6690 pa_def_subspaces
[i
].dup_common
,
6691 pa_def_subspaces
[i
].zero
,
6692 pa_def_subspaces
[i
].sort
,
6693 pa_def_subspaces
[i
].access
,
6694 pa_def_subspaces
[i
].space_index
,
6695 pa_def_subspaces
[i
].alignment
,
6696 pa_def_subspaces
[i
].quadrant
,
6704 /* Create a new space NAME, with the appropriate flags as defined
6705 by the given parameters. */
6707 static sd_chain_struct
*
6708 create_new_space (name
, spnum
, loadable
, defined
, private,
6709 sort
, seg
, user_defined
)
6719 sd_chain_struct
*chain_entry
;
6721 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6723 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6726 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6727 strcpy (SPACE_NAME (chain_entry
), name
);
6728 SPACE_DEFINED (chain_entry
) = defined
;
6729 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6730 SPACE_SPNUM (chain_entry
) = spnum
;
6732 chain_entry
->sd_seg
= seg
;
6733 chain_entry
->sd_last_subseg
= -1;
6734 chain_entry
->sd_subspaces
= NULL
;
6735 chain_entry
->sd_next
= NULL
;
6737 /* Find spot for the new space based on its sort key. */
6738 if (!space_dict_last
)
6739 space_dict_last
= chain_entry
;
6741 if (space_dict_root
== NULL
)
6742 space_dict_root
= chain_entry
;
6745 sd_chain_struct
*chain_pointer
;
6746 sd_chain_struct
*prev_chain_pointer
;
6748 chain_pointer
= space_dict_root
;
6749 prev_chain_pointer
= NULL
;
6751 while (chain_pointer
)
6753 prev_chain_pointer
= chain_pointer
;
6754 chain_pointer
= chain_pointer
->sd_next
;
6757 /* At this point we've found the correct place to add the new
6758 entry. So add it and update the linked lists as appropriate. */
6759 if (prev_chain_pointer
)
6761 chain_entry
->sd_next
= chain_pointer
;
6762 prev_chain_pointer
->sd_next
= chain_entry
;
6766 space_dict_root
= chain_entry
;
6767 chain_entry
->sd_next
= chain_pointer
;
6770 if (chain_entry
->sd_next
== NULL
)
6771 space_dict_last
= chain_entry
;
6774 /* This is here to catch predefined spaces which do not get
6775 modified by the user's input. Another call is found at
6776 the bottom of pa_parse_space_stmt to handle cases where
6777 the user modifies a predefined space. */
6778 #ifdef obj_set_section_attributes
6779 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6785 /* Create a new subspace NAME, with the appropriate flags as defined
6786 by the given parameters.
6788 Add the new subspace to the subspace dictionary chain in numerical
6789 order as defined by the SORT entries. */
6791 static ssd_chain_struct
*
6792 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6793 dup_common
, is_zero
, sort
, access
, space_index
,
6794 alignment
, quadrant
, seg
)
6795 sd_chain_struct
*space
;
6797 int loadable
, code_only
, common
, dup_common
, is_zero
;
6805 ssd_chain_struct
*chain_entry
;
6807 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6809 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6811 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6812 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6814 /* Initialize subspace_defined. When we hit a .subspace directive
6815 we'll set it to 1 which "locks-in" the subspace attributes. */
6816 SUBSPACE_DEFINED (chain_entry
) = 0;
6818 chain_entry
->ssd_subseg
= 0;
6819 chain_entry
->ssd_seg
= seg
;
6820 chain_entry
->ssd_next
= NULL
;
6822 /* Find spot for the new subspace based on its sort key. */
6823 if (space
->sd_subspaces
== NULL
)
6824 space
->sd_subspaces
= chain_entry
;
6827 ssd_chain_struct
*chain_pointer
;
6828 ssd_chain_struct
*prev_chain_pointer
;
6830 chain_pointer
= space
->sd_subspaces
;
6831 prev_chain_pointer
= NULL
;
6833 while (chain_pointer
)
6835 prev_chain_pointer
= chain_pointer
;
6836 chain_pointer
= chain_pointer
->ssd_next
;
6839 /* Now we have somewhere to put the new entry. Insert it and update
6841 if (prev_chain_pointer
)
6843 chain_entry
->ssd_next
= chain_pointer
;
6844 prev_chain_pointer
->ssd_next
= chain_entry
;
6848 space
->sd_subspaces
= chain_entry
;
6849 chain_entry
->ssd_next
= chain_pointer
;
6853 #ifdef obj_set_subsection_attributes
6854 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6861 /* Update the information for the given subspace based upon the
6862 various arguments. Return the modified subspace chain entry. */
6864 static ssd_chain_struct
*
6865 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6866 zero
, access
, space_index
, alignment
, quadrant
, section
)
6867 sd_chain_struct
*space
;
6881 ssd_chain_struct
*chain_entry
;
6883 chain_entry
= is_defined_subspace (name
);
6885 #ifdef obj_set_subsection_attributes
6886 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6893 /* Return the space chain entry for the space with the name NAME or
6894 NULL if no such space exists. */
6896 static sd_chain_struct
*
6897 is_defined_space (name
)
6900 sd_chain_struct
*chain_pointer
;
6902 for (chain_pointer
= space_dict_root
;
6904 chain_pointer
= chain_pointer
->sd_next
)
6906 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6907 return chain_pointer
;
6910 /* No mapping from segment to space was found. Return NULL. */
6914 /* Find and return the space associated with the given seg. If no mapping
6915 from the given seg to a space is found, then return NULL.
6917 Unlike subspaces, the number of spaces is not expected to grow much,
6918 so a linear exhaustive search is OK here. */
6920 static sd_chain_struct
*
6921 pa_segment_to_space (seg
)
6924 sd_chain_struct
*space_chain
;
6926 /* Walk through each space looking for the correct mapping. */
6927 for (space_chain
= space_dict_root
;
6929 space_chain
= space_chain
->sd_next
)
6931 if (space_chain
->sd_seg
== seg
)
6935 /* Mapping was not found. Return NULL. */
6939 /* Return the space chain entry for the subspace with the name NAME or
6940 NULL if no such subspace exists.
6942 Uses a linear search through all the spaces and subspaces, this may
6943 not be appropriate if we ever being placing each function in its
6946 static ssd_chain_struct
*
6947 is_defined_subspace (name
)
6950 sd_chain_struct
*space_chain
;
6951 ssd_chain_struct
*subspace_chain
;
6953 /* Walk through each space. */
6954 for (space_chain
= space_dict_root
;
6956 space_chain
= space_chain
->sd_next
)
6958 /* Walk through each subspace looking for a name which matches. */
6959 for (subspace_chain
= space_chain
->sd_subspaces
;
6961 subspace_chain
= subspace_chain
->ssd_next
)
6962 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6963 return subspace_chain
;
6966 /* Subspace wasn't found. Return NULL. */
6970 /* Find and return the subspace associated with the given seg. If no
6971 mapping from the given seg to a subspace is found, then return NULL.
6973 If we ever put each procedure/function within its own subspace
6974 (to make life easier on the compiler and linker), then this will have
6975 to become more efficient. */
6977 static ssd_chain_struct
*
6978 pa_subsegment_to_subspace (seg
, subseg
)
6982 sd_chain_struct
*space_chain
;
6983 ssd_chain_struct
*subspace_chain
;
6985 /* Walk through each space. */
6986 for (space_chain
= space_dict_root
;
6988 space_chain
= space_chain
->sd_next
)
6990 if (space_chain
->sd_seg
== seg
)
6992 /* Walk through each subspace within each space looking for
6993 the correct mapping. */
6994 for (subspace_chain
= space_chain
->sd_subspaces
;
6996 subspace_chain
= subspace_chain
->ssd_next
)
6997 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6998 return subspace_chain
;
7002 /* No mapping from subsegment to subspace found. Return NULL. */
7006 /* Given a number, try and find a space with the name number.
7008 Return a pointer to a space dictionary chain entry for the space
7009 that was found or NULL on failure. */
7011 static sd_chain_struct
*
7012 pa_find_space_by_number (number
)
7015 sd_chain_struct
*space_chain
;
7017 for (space_chain
= space_dict_root
;
7019 space_chain
= space_chain
->sd_next
)
7021 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
7025 /* No appropriate space found. Return NULL. */
7029 /* Return the starting address for the given subspace. If the starting
7030 address is unknown then return zero. */
7033 pa_subspace_start (space
, quadrant
)
7034 sd_chain_struct
*space
;
7037 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
7038 is not correct for the PA OSF1 port. */
7039 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
7041 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
7048 /* FIXME. Needs documentation. */
7050 pa_next_subseg (space
)
7051 sd_chain_struct
*space
;
7054 space
->sd_last_subseg
++;
7055 return space
->sd_last_subseg
;
7059 /* Helper function for pa_stringer. Used to find the end of
7066 unsigned int c
= *s
& CHAR_MASK
;
7069 /* We must have a valid space and subspace. */
7070 pa_check_current_space_and_subspace ();
7084 /* Handle a .STRING type pseudo-op. */
7087 pa_stringer (append_zero
)
7090 char *s
, num_buf
[4];
7094 /* Preprocess the string to handle PA-specific escape sequences.
7095 For example, \xDD where DD is a hexidecimal number should be
7096 changed to \OOO where OOO is an octal number. */
7098 /* Skip the opening quote. */
7099 s
= input_line_pointer
+ 1;
7101 while (is_a_char (c
= pa_stringer_aux (s
++)))
7108 /* Handle \x<num>. */
7111 unsigned int number
;
7116 /* Get pas the 'x'. */
7118 for (num_digit
= 0, number
= 0, dg
= *s
;
7120 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
7121 || (dg
>= 'A' && dg
<= 'F'));
7125 number
= number
* 16 + dg
- '0';
7126 else if (dg
>= 'a' && dg
<= 'f')
7127 number
= number
* 16 + dg
- 'a' + 10;
7129 number
= number
* 16 + dg
- 'A' + 10;
7139 sprintf (num_buf
, "%02o", number
);
7142 sprintf (num_buf
, "%03o", number
);
7145 for (i
= 0; i
<= num_digit
; i
++)
7146 s_start
[i
] = num_buf
[i
];
7150 /* This might be a "\"", skip over the escaped char. */
7157 stringer (append_zero
);
7158 pa_undefine_label ();
7161 /* Handle a .VERSION pseudo-op. */
7168 pa_undefine_label ();
7173 /* Handle a .COMPILER pseudo-op. */
7176 pa_compiler (unused
)
7179 obj_som_compiler (0);
7180 pa_undefine_label ();
7185 /* Handle a .COPYRIGHT pseudo-op. */
7188 pa_copyright (unused
)
7192 pa_undefine_label ();
7195 /* Just like a normal cons, but when finished we have to undefine
7196 the latest space label. */
7203 pa_undefine_label ();
7206 /* Switch to the data space. As usual delete our label. */
7213 current_space
= is_defined_space ("$PRIVATE$");
7215 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7218 pa_undefine_label ();
7221 /* Like float_cons, but we need to undefine our label. */
7224 pa_float_cons (float_type
)
7227 float_cons (float_type
);
7228 pa_undefine_label ();
7231 /* Like s_fill, but delete our label when finished. */
7238 /* We must have a valid space and subspace. */
7239 pa_check_current_space_and_subspace ();
7243 pa_undefine_label ();
7246 /* Like lcomm, but delete our label when finished. */
7249 pa_lcomm (needs_align
)
7253 /* We must have a valid space and subspace. */
7254 pa_check_current_space_and_subspace ();
7257 s_lcomm (needs_align
);
7258 pa_undefine_label ();
7261 /* Like lsym, but delete our label when finished. */
7268 /* We must have a valid space and subspace. */
7269 pa_check_current_space_and_subspace ();
7273 pa_undefine_label ();
7276 /* Switch to the text space. Like s_text, but delete our
7277 label when finished. */
7283 current_space
= is_defined_space ("$TEXT$");
7285 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7289 pa_undefine_label ();
7292 /* On the PA relocations which involve function symbols must not be
7293 adjusted. This so that the linker can know when/how to create argument
7294 relocation stubs for indirect calls and calls to static functions.
7296 "T" field selectors create DLT relative fixups for accessing
7297 globals and statics in PIC code; each DLT relative fixup creates
7298 an entry in the DLT table. The entries contain the address of
7299 the final target (eg accessing "foo" would create a DLT entry
7300 with the address of "foo").
7302 Unfortunately, the HP linker doesn't take into account any addend
7303 when generating the DLT; so accessing $LIT$+8 puts the address of
7304 $LIT$ into the DLT rather than the address of $LIT$+8.
7306 The end result is we can't perform relocation symbol reductions for
7307 any fixup which creates entries in the DLT (eg they use "T" field
7310 Reject reductions involving symbols with external scope; such
7311 reductions make life a living hell for object file editors.
7313 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7314 the code space. The SOM BFD backend doesn't know how to pull the
7315 right bits out of an instruction. */
7318 hppa_fix_adjustable (fixp
)
7321 struct hppa_fix_struct
*hppa_fix
;
7323 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7326 /* Reject reductions of symbols in 32bit relocs. */
7327 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
7330 /* Reject reductions of symbols in sym1-sym2 expressions when
7331 the fixup will occur in a CODE subspace.
7333 XXX FIXME: Long term we probably want to reject all of these;
7334 for example reducing in the debug section would lose if we ever
7335 supported using the optimizing hp linker. */
7338 && (hppa_fix
->segment
->flags
& SEC_CODE
))
7340 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
7341 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
7345 /* We can't adjust any relocs that use LR% and RR% field selectors.
7346 That confuses the HP linker. */
7347 if (hppa_fix
->fx_r_field
== e_lrsel
7348 || hppa_fix
->fx_r_field
== e_rrsel
7349 || hppa_fix
->fx_r_field
== e_nlrsel
)
7353 /* Reject reductions of symbols in DLT relative relocs,
7354 relocations with plabels. */
7355 if (hppa_fix
->fx_r_field
== e_tsel
7356 || hppa_fix
->fx_r_field
== e_ltsel
7357 || hppa_fix
->fx_r_field
== e_rtsel
7358 || hppa_fix
->fx_r_field
== e_psel
7359 || hppa_fix
->fx_r_field
== e_rpsel
7360 || hppa_fix
->fx_r_field
== e_lpsel
)
7363 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
7366 /* Reject absolute calls (jumps). */
7367 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
7370 /* Reject reductions of function symbols. */
7371 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
7377 /* Return nonzero if the fixup in FIXP will require a relocation,
7378 even it if appears that the fixup could be completely handled
7382 hppa_force_relocation (fixp
)
7385 struct hppa_fix_struct
*hppa_fixp
;
7388 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7390 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
7391 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
7392 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
7393 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
7394 || fixp
->fx_r_type
== R_HPPA_END_TRY
7395 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
7396 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
7400 #define arg_reloc_stub_needed(CALLER, CALLEE) \
7401 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7404 /* It is necessary to force PC-relative calls/jumps to have a relocation
7405 entry if they're going to need either a argument relocation or long
7406 call stub. FIXME. Can't we need the same for absolute calls? */
7407 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
7408 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
7409 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
7410 hppa_fixp
->fx_arg_reloc
)))
7413 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
7414 - md_pcrel_from (fixp
));
7415 /* Now check and see if we're going to need a long-branch stub. */
7416 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
7417 && (distance
> 262143 || distance
< -262144))
7420 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
7422 #undef arg_reloc_stub_needed
7424 /* No need (yet) to force another relocations to be emitted. */
7428 /* Now for some ELF specific code. FIXME. */
7430 /* Mark the end of a function so that it's possible to compute
7431 the size of the function in hppa_elf_final_processing. */
7434 hppa_elf_mark_end_of_function ()
7436 /* ELF does not have EXIT relocations. All we do is create a
7437 temporary symbol marking the end of the function. */
7438 char *name
= (char *)
7439 xmalloc (strlen ("L$\001end_") +
7440 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
7446 strcpy (name
, "L$\001end_");
7447 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
7449 /* If we have a .exit followed by a .procend, then the
7450 symbol will have already been defined. */
7451 symbolP
= symbol_find (name
);
7454 /* The symbol has already been defined! This can
7455 happen if we have a .exit followed by a .procend.
7457 This is *not* an error. All we want to do is free
7458 the memory we just allocated for the name and continue. */
7463 /* symbol value should be the offset of the
7464 last instruction of the function */
7465 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
7469 S_CLEAR_EXTERNAL (symbolP
);
7470 symbol_table_insert (symbolP
);
7474 last_call_info
->end_symbol
= symbolP
;
7476 as_bad (_("Symbol '%s' could not be created."), name
);
7480 as_bad (_("No memory for symbol name."));
7484 /* For ELF, this function serves one purpose: to setup the st_size
7485 field of STT_FUNC symbols. To do this, we need to scan the
7486 call_info structure list, determining st_size in by taking the
7487 difference in the address of the beginning/end marker symbols. */
7490 elf_hppa_final_processing ()
7492 struct call_info
*call_info_pointer
;
7494 for (call_info_pointer
= call_info_root
;
7496 call_info_pointer
= call_info_pointer
->ci_next
)
7498 elf_symbol_type
*esym
7499 = ((elf_symbol_type
*)
7500 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
7501 esym
->internal_elf_sym
.st_size
=
7502 S_GET_VALUE (call_info_pointer
->end_symbol
)
7503 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;