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 /* If we are using ELF, then we probably can support dwarf2 debug
43 records. Furthermore, if we are supporting dwarf2 debug records,
44 then we want to use the assembler support for compact line numbers. */
46 #include "dwarf2dbg.h"
47 struct dwarf2_line_info debug_line
;
50 /* A "convient" place to put object file dependencies which do
51 not need to be seen outside of tc-hppa.c. */
53 /* Object file formats specify relocation types. */
54 typedef elf_hppa_reloc_type reloc_type
;
56 /* Object file formats specify BFD symbol types. */
57 typedef elf_symbol_type obj_symbol_type
;
60 /* How to generate a relocation. */
61 #define hppa_gen_reloc_type _bfd_elf64_hppa_gen_reloc_type
63 #define hppa_gen_reloc_type _bfd_elf32_hppa_gen_reloc_type
66 /* ELF objects can have versions, but apparently do not have anywhere
67 to store a copyright string. */
68 #define obj_version obj_elf_version
69 #define obj_copyright obj_elf_version
71 #define UNWIND_SECTION_NAME ".PARISC.unwind"
75 /* Names of various debugging spaces/subspaces. */
76 #define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
77 #define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
78 #define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
79 #define UNWIND_SECTION_NAME "$UNWIND$"
81 /* Object file formats specify relocation types. */
82 typedef int reloc_type
;
84 /* SOM objects can have both a version string and a copyright string. */
85 #define obj_version obj_som_version
86 #define obj_copyright obj_som_copyright
88 /* How to generate a relocation. */
89 #define hppa_gen_reloc_type hppa_som_gen_reloc_type
91 /* Object file formats specify BFD symbol types. */
92 typedef som_symbol_type obj_symbol_type
;
94 /* This apparently isn't in older versions of hpux reloc.h. */
96 #define R_DLT_REL 0x78
108 /* Various structures and types used internally in tc-hppa.c. */
110 /* Unwind table and descriptor. FIXME: Sync this with GDB version. */
114 unsigned int cannot_unwind
:1;
115 unsigned int millicode
:1;
116 unsigned int millicode_save_rest
:1;
117 unsigned int region_desc
:2;
118 unsigned int save_sr
:2;
119 unsigned int entry_fr
:4;
120 unsigned int entry_gr
:5;
121 unsigned int args_stored
:1;
122 unsigned int call_fr
:5;
123 unsigned int call_gr
:5;
124 unsigned int save_sp
:1;
125 unsigned int save_rp
:1;
126 unsigned int save_rp_in_frame
:1;
127 unsigned int extn_ptr_defined
:1;
128 unsigned int cleanup_defined
:1;
130 unsigned int hpe_interrupt_marker
:1;
131 unsigned int hpux_interrupt_marker
:1;
132 unsigned int reserved
:3;
133 unsigned int frame_size
:27;
138 /* Starting and ending offsets of the region described by
140 unsigned int start_offset
;
141 unsigned int end_offset
;
142 struct unwind_desc descriptor
;
145 /* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
146 control the entry and exit code they generate. It is also used in
147 creation of the correct stack unwind descriptors.
149 NOTE: GAS does not support .enter and .leave for the generation of
150 prologues and epilogues. FIXME.
152 The fields in structure roughly correspond to the arguments available on the
153 .callinfo pseudo-op. */
157 /* The unwind descriptor being built. */
158 struct unwind_table ci_unwind
;
160 /* Name of this function. */
161 symbolS
*start_symbol
;
163 /* (temporary) symbol used to mark the end of this function. */
166 /* Next entry in the chain. */
167 struct call_info
*ci_next
;
170 /* Operand formats for FP instructions. Note not all FP instructions
171 allow all four formats to be used (for example fmpysub only allows
175 SGL
, DBL
, ILLEGAL_FMT
, QUAD
, W
, UW
, DW
, UDW
, QW
, UQW
179 /* This fully describes the symbol types which may be attached to
180 an EXPORT or IMPORT directive. Only SOM uses this formation
181 (ELF has no need for it). */
185 SYMBOL_TYPE_ABSOLUTE
,
189 SYMBOL_TYPE_MILLICODE
,
191 SYMBOL_TYPE_PRI_PROG
,
192 SYMBOL_TYPE_SEC_PROG
,
196 /* This structure contains information needed to assemble
197 individual instructions. */
200 /* Holds the opcode after parsing by pa_ip. */
201 unsigned long opcode
;
203 /* Holds an expression associated with the current instruction. */
206 /* Does this instruction use PC-relative addressing. */
209 /* Floating point formats for operand1 and operand2. */
210 fp_operand_format fpof1
;
211 fp_operand_format fpof2
;
214 /* Holds the field selector for this instruction
215 (for example L%, LR%, etc). */
218 /* Holds any argument relocation bits associated with this
219 instruction. (instruction should be some sort of call). */
222 /* The format specification for this instruction. */
225 /* The relocation (if any) associated with this instruction. */
229 /* PA-89 floating point registers are arranged like this:
232 +--------------+--------------+
233 | 0 or 16L | 16 or 16R |
234 +--------------+--------------+
235 | 1 or 17L | 17 or 17R |
236 +--------------+--------------+
244 +--------------+--------------+
245 | 14 or 30L | 30 or 30R |
246 +--------------+--------------+
247 | 15 or 31L | 31 or 31R |
248 +--------------+--------------+
251 The following is a version of pa_parse_number that
252 handles the L/R notation and returns the correct
253 value to put into the instruction register field.
254 The correct value to put into the instruction is
255 encoded in the structure 'pa_11_fp_reg_struct'. */
257 struct pa_11_fp_reg_struct
259 /* The register number. */
266 /* Additional information needed to build argument relocation stubs. */
269 /* The argument relocation specification. */
270 unsigned int arg_reloc
;
272 /* Number of arguments. */
273 unsigned int arg_count
;
277 /* This structure defines an entry in the subspace dictionary
280 struct subspace_dictionary_chain
282 /* Nonzero if this space has been defined by the user code. */
283 unsigned int ssd_defined
;
285 /* Name of this subspace. */
288 /* GAS segment and subsegment associated with this subspace. */
292 /* Next space in the subspace dictionary chain. */
293 struct subspace_dictionary_chain
*ssd_next
;
296 typedef struct subspace_dictionary_chain ssd_chain_struct
;
298 /* This structure defines an entry in the subspace dictionary
301 struct space_dictionary_chain
303 /* Nonzero if this space has been defined by the user code or
304 as a default space. */
305 unsigned int sd_defined
;
307 /* Nonzero if this spaces has been defined by the user code. */
308 unsigned int sd_user_defined
;
310 /* The space number (or index). */
311 unsigned int sd_spnum
;
313 /* The name of this subspace. */
316 /* GAS segment to which this subspace corresponds. */
319 /* Current subsegment number being used. */
322 /* The chain of subspaces contained within this space. */
323 ssd_chain_struct
*sd_subspaces
;
325 /* The next entry in the space dictionary chain. */
326 struct space_dictionary_chain
*sd_next
;
329 typedef struct space_dictionary_chain sd_chain_struct
;
331 /* This structure defines attributes of the default subspace
332 dictionary entries. */
334 struct default_subspace_dict
336 /* Name of the subspace. */
339 /* FIXME. Is this still needed? */
342 /* Nonzero if this subspace is loadable. */
345 /* Nonzero if this subspace contains only code. */
348 /* Nonzero if this is a common subspace. */
351 /* Nonzero if this is a common subspace which allows symbols
352 to be multiply defined. */
355 /* Nonzero if this subspace should be zero filled. */
358 /* Sort key for this subspace. */
361 /* Access control bits for this subspace. Can represent RWX access
362 as well as privilege level changes for gateways. */
365 /* Index of containing space. */
368 /* Alignment (in bytes) of this subspace. */
371 /* Quadrant within space where this subspace should be loaded. */
374 /* An index into the default spaces array. */
377 /* Subsegment associated with this subspace. */
381 /* This structure defines attributes of the default space
382 dictionary entries. */
384 struct default_space_dict
386 /* Name of the space. */
389 /* Space number. It is possible to identify spaces within
390 assembly code numerically! */
393 /* Nonzero if this space is loadable. */
396 /* Nonzero if this space is "defined". FIXME is still needed */
399 /* Nonzero if this space can not be shared. */
402 /* Sort key for this space. */
405 /* Segment associated with this space. */
410 /* Structure for previous label tracking. Needed so that alignments,
411 callinfo declarations, etc can be easily attached to a particular
413 typedef struct label_symbol_struct
415 struct symbol
*lss_label
;
417 sd_chain_struct
*lss_space
;
422 struct label_symbol_struct
*lss_next
;
426 /* Extra information needed to perform fixups (relocations) on the PA. */
427 struct hppa_fix_struct
429 /* The field selector. */
430 enum hppa_reloc_field_selector_type_alt fx_r_field
;
435 /* Format of fixup. */
438 /* Argument relocation bits. */
441 /* The segment this fixup appears in. */
445 /* Structure to hold information about predefined registers. */
453 /* This structure defines the mapping from a FP condition string
454 to a condition number which can be recorded in an instruction. */
461 /* This structure defines a mapping from a field selector
462 string to a field selector type. */
463 struct selector_entry
469 /* Prototypes for functions local to tc-hppa.c. */
472 static void pa_check_current_space_and_subspace
PARAMS ((void));
475 static fp_operand_format pa_parse_fp_format
PARAMS ((char **s
));
476 static void pa_cons
PARAMS ((int));
477 static void pa_data
PARAMS ((int));
478 static void pa_float_cons
PARAMS ((int));
479 static void pa_fill
PARAMS ((int));
480 static void pa_lcomm
PARAMS ((int));
481 static void pa_lsym
PARAMS ((int));
482 static void pa_stringer
PARAMS ((int));
483 static void pa_text
PARAMS ((int));
484 static void pa_version
PARAMS ((int));
485 static int pa_parse_fp_cmp_cond
PARAMS ((char **));
486 static int get_expression
PARAMS ((char *));
487 static int pa_get_absolute_expression
PARAMS ((struct pa_it
*, char **));
488 static int evaluate_absolute
PARAMS ((struct pa_it
*));
489 static unsigned int pa_build_arg_reloc
PARAMS ((char *));
490 static unsigned int pa_align_arg_reloc
PARAMS ((unsigned int, unsigned int));
491 static int pa_parse_nullif
PARAMS ((char **));
492 static int pa_parse_nonneg_cmpsub_cmpltr
PARAMS ((char **, int));
493 static int pa_parse_neg_cmpsub_cmpltr
PARAMS ((char **, int));
494 static int pa_parse_neg_add_cmpltr
PARAMS ((char **, int));
495 static int pa_parse_nonneg_add_cmpltr
PARAMS ((char **, int));
496 static void pa_block
PARAMS ((int));
497 static void pa_brtab
PARAMS ((int));
498 static void pa_try
PARAMS ((int));
499 static void pa_call
PARAMS ((int));
500 static void pa_call_args
PARAMS ((struct call_desc
*));
501 static void pa_callinfo
PARAMS ((int));
502 static void pa_code
PARAMS ((int));
503 static void pa_comm
PARAMS ((int));
504 static void pa_copyright
PARAMS ((int));
505 static void pa_end
PARAMS ((int));
506 static void pa_enter
PARAMS ((int));
507 static void pa_entry
PARAMS ((int));
508 static void pa_equ
PARAMS ((int));
509 static void pa_exit
PARAMS ((int));
510 static void pa_export
PARAMS ((int));
511 static void pa_type_args
PARAMS ((symbolS
*, int));
512 static void pa_import
PARAMS ((int));
513 static void pa_label
PARAMS ((int));
514 static void pa_leave
PARAMS ((int));
515 static void pa_level
PARAMS ((int));
516 static void pa_origin
PARAMS ((int));
517 static void pa_proc
PARAMS ((int));
518 static void pa_procend
PARAMS ((int));
519 static void pa_param
PARAMS ((int));
520 static void pa_undefine_label
PARAMS ((void));
521 static int need_pa11_opcode
PARAMS ((struct pa_it
*,
522 struct pa_11_fp_reg_struct
*));
523 static int pa_parse_number
PARAMS ((char **, struct pa_11_fp_reg_struct
*));
524 static label_symbol_struct
*pa_get_label
PARAMS ((void));
526 static void pa_compiler
PARAMS ((int));
527 static void pa_align
PARAMS ((int));
528 static void pa_space
PARAMS ((int));
529 static void pa_spnum
PARAMS ((int));
530 static void pa_subspace
PARAMS ((int));
531 static sd_chain_struct
*create_new_space
PARAMS ((char *, int, int,
534 static ssd_chain_struct
*create_new_subspace
PARAMS ((sd_chain_struct
*,
539 static ssd_chain_struct
*update_subspace
PARAMS ((sd_chain_struct
*,
540 char *, int, int, int,
544 static sd_chain_struct
*is_defined_space
PARAMS ((char *));
545 static ssd_chain_struct
*is_defined_subspace
PARAMS ((char *));
546 static sd_chain_struct
*pa_segment_to_space
PARAMS ((asection
*));
547 static ssd_chain_struct
*pa_subsegment_to_subspace
PARAMS ((asection
*,
549 static sd_chain_struct
*pa_find_space_by_number
PARAMS ((int));
550 static unsigned int pa_subspace_start
PARAMS ((sd_chain_struct
*, int));
551 static sd_chain_struct
*pa_parse_space_stmt
PARAMS ((char *, int));
552 static int pa_next_subseg
PARAMS ((sd_chain_struct
*));
553 static void pa_spaces_begin
PARAMS ((void));
555 static void pa_ip
PARAMS ((char *));
556 static void fix_new_hppa
PARAMS ((fragS
*, int, int, symbolS
*,
557 long, expressionS
*, int,
558 bfd_reloc_code_real_type
,
559 enum hppa_reloc_field_selector_type_alt
,
561 static int is_end_of_statement
PARAMS ((void));
562 static int reg_name_search
PARAMS ((char *));
563 static int pa_chk_field_selector
PARAMS ((char **));
564 static int is_same_frag
PARAMS ((fragS
*, fragS
*));
565 static void process_exit
PARAMS ((void));
566 static int log2
PARAMS ((int));
567 static unsigned int pa_stringer_aux
PARAMS ((char *));
570 static void hppa_elf_mark_end_of_function
PARAMS ((void));
571 static void pa_build_unwind_subspace
PARAMS ((struct call_info
*));
574 /* File and gloally scoped variable declarations. */
577 /* Root and final entry in the space chain. */
578 static sd_chain_struct
*space_dict_root
;
579 static sd_chain_struct
*space_dict_last
;
581 /* The current space and subspace. */
582 static sd_chain_struct
*current_space
;
583 static ssd_chain_struct
*current_subspace
;
586 /* Root of the call_info chain. */
587 static struct call_info
*call_info_root
;
589 /* The last call_info (for functions) structure
590 seen so it can be associated with fixups and
592 static struct call_info
*last_call_info
;
594 /* The last call description (for actual calls). */
595 static struct call_desc last_call_desc
;
597 /* handle of the OPCODE hash table */
598 static struct hash_control
*op_hash
= NULL
;
600 /* This array holds the chars that always start a comment. If the
601 pre-processor is disabled, these aren't very useful. */
602 const char comment_chars
[] = ";";
604 /* Table of pseudo ops for the PA. FIXME -- how many of these
605 are now redundant with the overall GAS and the object file
607 const pseudo_typeS md_pseudo_table
[] =
609 /* align pseudo-ops on the PA specify the actual alignment requested,
610 not the log2 of the requested alignment. */
612 {"align", pa_align
, 8},
615 {"align", s_align_bytes
, 8},
617 {"begin_brtab", pa_brtab
, 1},
618 {"begin_try", pa_try
, 1},
619 {"block", pa_block
, 1},
620 {"blockz", pa_block
, 0},
621 {"byte", pa_cons
, 1},
622 {"call", pa_call
, 0},
623 {"callinfo", pa_callinfo
, 0},
624 {"code", pa_code
, 0},
625 {"comm", pa_comm
, 0},
627 {"compiler", pa_compiler
, 0},
629 {"copyright", pa_copyright
, 0},
630 {"data", pa_data
, 0},
631 {"double", pa_float_cons
, 'd'},
632 {"dword", pa_cons
, 8},
634 {"end_brtab", pa_brtab
, 0},
635 {"end_try", pa_try
, 0},
636 {"enter", pa_enter
, 0},
637 {"entry", pa_entry
, 0},
639 {"exit", pa_exit
, 0},
640 {"export", pa_export
, 0},
642 { "file", dwarf2_directive_file
},
644 {"fill", pa_fill
, 0},
645 {"float", pa_float_cons
, 'f'},
646 {"half", pa_cons
, 2},
647 {"import", pa_import
, 0},
649 {"label", pa_label
, 0},
650 {"lcomm", pa_lcomm
, 0},
651 {"leave", pa_leave
, 0},
652 {"level", pa_level
, 0},
654 { "loc", dwarf2_directive_loc
},
656 {"long", pa_cons
, 4},
657 {"lsym", pa_lsym
, 0},
659 {"nsubspa", pa_subspace
, 1},
661 {"octa", pa_cons
, 16},
662 {"org", pa_origin
, 0},
663 {"origin", pa_origin
, 0},
664 {"param", pa_param
, 0},
665 {"proc", pa_proc
, 0},
666 {"procend", pa_procend
, 0},
667 {"quad", pa_cons
, 8},
669 {"short", pa_cons
, 2},
670 {"single", pa_float_cons
, 'f'},
672 {"space", pa_space
, 0},
673 {"spnum", pa_spnum
, 0},
675 {"string", pa_stringer
, 0},
676 {"stringz", pa_stringer
, 1},
678 {"subspa", pa_subspace
, 0},
680 {"text", pa_text
, 0},
681 {"version", pa_version
, 0},
682 {"word", pa_cons
, 4},
686 /* This array holds the chars that only start a comment at the beginning of
687 a line. If the line seems to have the form '# 123 filename'
688 .line and .file directives will appear in the pre-processed output.
690 Note that input_file.c hand checks for '#' at the beginning of the
691 first line of the input file. This is because the compiler outputs
692 #NO_APP at the beginning of its output.
694 Also note that C style comments will always work. */
695 const char line_comment_chars
[] = "#";
697 /* This array holds the characters which act as line separators. */
698 const char line_separator_chars
[] = "!";
700 /* Chars that can be used to separate mant from exp in floating point nums. */
701 const char EXP_CHARS
[] = "eE";
703 /* Chars that mean this number is a floating point constant.
704 As in 0f12.456 or 0d1.2345e12.
706 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
707 changed in read.c. Ideally it shouldn't hae to know abou it at
708 all, but nothing is ideal around here. */
709 const char FLT_CHARS
[] = "rRsSfFdDxXpP";
711 static struct pa_it the_insn
;
713 /* Points to the end of an expression just parsed by get_expressoin
714 and friends. FIXME. This shouldn't be handled with a file-global
716 static char *expr_end
;
718 /* Nonzero if a .callinfo appeared within the current procedure. */
719 static int callinfo_found
;
721 /* Nonzero if the assembler is currently within a .entry/.exit pair. */
722 static int within_entry_exit
;
724 /* Nonzero if the assembler is currently within a procedure definition. */
725 static int within_procedure
;
727 /* Handle on strucutre which keep track of the last symbol
728 seen in each subspace. */
729 static label_symbol_struct
*label_symbols_rootp
= NULL
;
731 /* Holds the last field selector. */
732 static int hppa_field_selector
;
734 /* Nonzero when strict syntax checking is enabled. Zero otherwise.
736 Each opcode in the table has a flag which indicates whether or not
737 strict syntax checking should be enabled for that instruction. */
738 static int strict
= 0;
741 /* A dummy bfd symbol so that all relocations have symbols of some kind. */
742 static symbolS
*dummy_symbol
;
745 /* Nonzero if errors are to be printed. */
746 static int print_errors
= 1;
748 /* List of registers that are pre-defined:
750 Each general register has one predefined name of the form
751 %r<REGNUM> which has the value <REGNUM>.
753 Space and control registers are handled in a similar manner,
754 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
756 Likewise for the floating point registers, but of the form
757 %fr<REGNUM>. Floating point registers have additional predefined
758 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
759 again have the value <REGNUM>.
761 Many registers also have synonyms:
763 %r26 - %r23 have %arg0 - %arg3 as synonyms
764 %r28 - %r29 have %ret0 - %ret1 as synonyms
765 %r30 has %sp as a synonym
766 %r27 has %dp as a synonym
767 %r2 has %rp as a synonym
769 Almost every control register has a synonym; they are not listed
772 The table is sorted. Suitable for searching by a binary search. */
774 static const struct pd_reg pre_defined_registers
[] =
974 /* This table is sorted by order of the length of the string. This is
975 so we check for <> before we check for <. If we had a <> and checked
976 for < first, we would get a false match. */
977 static const struct fp_cond_map fp_cond_map
[] =
1013 static const struct selector_entry selector_table
[] =
1038 /* default space and subspace dictionaries */
1040 #define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1041 #define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1043 /* pre-defined subsegments (subspaces) for the HPPA. */
1044 #define SUBSEG_CODE 0
1045 #define SUBSEG_LIT 1
1046 #define SUBSEG_MILLI 2
1047 #define SUBSEG_DATA 0
1048 #define SUBSEG_BSS 2
1049 #define SUBSEG_UNWIND 3
1050 #define SUBSEG_GDB_STRINGS 0
1051 #define SUBSEG_GDB_SYMBOLS 1
1053 static struct default_subspace_dict pa_def_subspaces
[] =
1055 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE
},
1056 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA
},
1057 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT
},
1058 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI
},
1059 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS
},
1060 {NULL
, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1063 static struct default_space_dict pa_def_spaces
[] =
1065 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL
},
1066 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL
},
1067 {NULL
, 0, 0, 0, 0, 0, ASEC_NULL
}
1070 /* Misc local definitions used by the assembler. */
1072 /* These macros are used to maintain spaces/subspaces. */
1073 #define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1074 #define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1075 #define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1076 #define SPACE_NAME(space_chain) (space_chain)->sd_name
1078 #define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1079 #define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1082 /* Return nonzero if the string pointed to by S potentially represents
1083 a right or left half of a FP register */
1084 #define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1085 #define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1087 /* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1088 main loop after insertion. */
1090 #define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1092 ((OPCODE) |= (FIELD) << (START)); \
1096 /* Simple range checking for FIELD againt HIGH and LOW bounds.
1097 IGNORE is used to suppress the error message. */
1099 #define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1101 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1104 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1110 #define is_DP_relative(exp) \
1111 ((exp).X_op == O_subtract \
1112 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
1114 #define is_PC_relative(exp) \
1115 ((exp).X_op == O_subtract \
1116 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
1118 /* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1119 always be able to reduce the expression to a constant, so we don't
1120 need real complex handling yet. */
1121 #define is_complex(exp) \
1122 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1124 /* Actual functions to implement the PA specific code for the assembler. */
1126 /* Called before writing the object file. Make sure entry/exit and
1127 proc/procend pairs match. */
1132 if (within_entry_exit
)
1133 as_fatal (_("Missing .exit\n"));
1135 if (within_procedure
)
1136 as_fatal (_("Missing .procend\n"));
1139 /* Returns a pointer to the label_symbol_struct for the current space.
1140 or NULL if no label_symbol_struct exists for the current space. */
1142 static label_symbol_struct
*
1145 label_symbol_struct
*label_chain
;
1147 for (label_chain
= label_symbols_rootp
;
1149 label_chain
= label_chain
->lss_next
)
1152 if (current_space
== label_chain
->lss_space
&& label_chain
->lss_label
)
1156 if (now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
)
1164 /* Defines a label for the current space. If one is already defined,
1165 this function will replace it with the new label. */
1168 pa_define_label (symbol
)
1171 label_symbol_struct
*label_chain
= pa_get_label ();
1174 label_chain
->lss_label
= symbol
;
1177 /* Create a new label entry and add it to the head of the chain. */
1179 = (label_symbol_struct
*) xmalloc (sizeof (label_symbol_struct
));
1180 label_chain
->lss_label
= symbol
;
1182 label_chain
->lss_space
= current_space
;
1185 label_chain
->lss_segment
= now_seg
;
1187 label_chain
->lss_next
= NULL
;
1189 if (label_symbols_rootp
)
1190 label_chain
->lss_next
= label_symbols_rootp
;
1192 label_symbols_rootp
= label_chain
;
1196 /* Removes a label definition for the current space.
1197 If there is no label_symbol_struct entry, then no action is taken. */
1200 pa_undefine_label ()
1202 label_symbol_struct
*label_chain
;
1203 label_symbol_struct
*prev_label_chain
= NULL
;
1205 for (label_chain
= label_symbols_rootp
;
1207 label_chain
= label_chain
->lss_next
)
1211 && current_space
== label_chain
->lss_space
&& label_chain
->lss_label
1214 && now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
1218 /* Remove the label from the chain and free its memory. */
1219 if (prev_label_chain
)
1220 prev_label_chain
->lss_next
= label_chain
->lss_next
;
1222 label_symbols_rootp
= label_chain
->lss_next
;
1227 prev_label_chain
= label_chain
;
1232 /* An HPPA-specific version of fix_new. This is required because the HPPA
1233 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1234 results in the creation of an instance of an hppa_fix_struct. An
1235 hppa_fix_struct stores the extra information along with a pointer to the
1236 original fixS. This is attached to the original fixup via the
1237 tc_fix_data field. */
1240 fix_new_hppa (frag
, where
, size
, add_symbol
, offset
, exp
, pcrel
,
1241 r_type
, r_field
, r_format
, arg_reloc
, unwind_bits
)
1245 symbolS
*add_symbol
;
1249 bfd_reloc_code_real_type r_type
;
1250 enum hppa_reloc_field_selector_type_alt r_field
;
1257 struct hppa_fix_struct
*hppa_fix
= (struct hppa_fix_struct
*)
1258 obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
1261 new_fix
= fix_new_exp (frag
, where
, size
, exp
, pcrel
, r_type
);
1263 new_fix
= fix_new (frag
, where
, size
, add_symbol
, offset
, pcrel
, r_type
);
1264 new_fix
->tc_fix_data
= (void *) hppa_fix
;
1265 hppa_fix
->fx_r_type
= r_type
;
1266 hppa_fix
->fx_r_field
= r_field
;
1267 hppa_fix
->fx_r_format
= r_format
;
1268 hppa_fix
->fx_arg_reloc
= arg_reloc
;
1269 hppa_fix
->segment
= now_seg
;
1271 if (r_type
== R_ENTRY
|| r_type
== R_EXIT
)
1272 new_fix
->fx_offset
= *unwind_bits
;
1275 /* foo-$global$ is used to access non-automatic storage. $global$
1276 is really just a marker and has served its purpose, so eliminate
1277 it now so as not to confuse write.c. */
1278 if (new_fix
->fx_subsy
1279 && !strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$global$"))
1280 new_fix
->fx_subsy
= NULL
;
1283 /* Parse a .byte, .word, .long expression for the HPPA. Called by
1284 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1287 parse_cons_expression_hppa (exp
)
1290 hppa_field_selector
= pa_chk_field_selector (&input_line_pointer
);
1294 /* This fix_new is called by cons via TC_CONS_FIX_NEW.
1295 hppa_field_selector is set by the parse_cons_expression_hppa. */
1298 cons_fix_new_hppa (frag
, where
, size
, exp
)
1304 unsigned int rel_type
;
1306 /* Get a base relocation type. */
1307 if (is_DP_relative (*exp
))
1308 rel_type
= R_HPPA_GOTOFF
;
1309 else if (is_complex (*exp
))
1310 rel_type
= R_HPPA_COMPLEX
;
1314 if (hppa_field_selector
!= e_psel
&& hppa_field_selector
!= e_fsel
)
1315 as_warn (_("Invalid field selector. Assuming F%%."));
1317 fix_new_hppa (frag
, where
, size
,
1318 (symbolS
*) NULL
, (offsetT
) 0, exp
, 0, rel_type
,
1319 hppa_field_selector
, size
* 8, 0, NULL
);
1321 /* Reset field selector to its default state. */
1322 hppa_field_selector
= 0;
1325 /* This function is called once, at assembler startup time. It should
1326 set up all the tables, etc. that the MD part of the assembler will need. */
1331 const char *retval
= NULL
;
1335 last_call_info
= NULL
;
1336 call_info_root
= NULL
;
1338 /* Set the default machine type. */
1339 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
1340 as_warn (_("could not set architecture and machine"));
1342 /* Folding of text and data segments fails miserably on the PA.
1343 Warn user and disable "-R" option. */
1344 if (flag_readonly_data_in_text
)
1346 as_warn (_("-R option not supported on this target."));
1347 flag_readonly_data_in_text
= 0;
1354 op_hash
= hash_new ();
1356 while (i
< NUMOPCODES
)
1358 const char *name
= pa_opcodes
[i
].name
;
1359 retval
= hash_insert (op_hash
, name
, (struct pa_opcode
*) &pa_opcodes
[i
]);
1360 if (retval
!= NULL
&& *retval
!= '\0')
1362 as_fatal (_("Internal error: can't hash `%s': %s\n"), name
, retval
);
1367 if ((pa_opcodes
[i
].match
& pa_opcodes
[i
].mask
)
1368 != pa_opcodes
[i
].match
)
1370 fprintf (stderr
, _("internal error: losing opcode: `%s' \"%s\"\n"),
1371 pa_opcodes
[i
].name
, pa_opcodes
[i
].args
);
1376 while (i
< NUMOPCODES
&& !strcmp (pa_opcodes
[i
].name
, name
));
1380 as_fatal (_("Broken assembler. No assembly attempted."));
1383 /* SOM will change text_section. To make sure we never put
1384 anything into the old one switch to the new one now. */
1385 subseg_set (text_section
, 0);
1389 dummy_symbol
= symbol_find_or_make ("L$dummy");
1390 S_SET_SEGMENT (dummy_symbol
, text_section
);
1391 /* Force the symbol to be converted to a real symbol. */
1392 (void) symbol_get_bfdsym (dummy_symbol
);
1396 /* Assemble a single instruction storing it into a frag. */
1403 /* The had better be something to assemble. */
1406 /* If we are within a procedure definition, make sure we've
1407 defined a label for the procedure; handle case where the
1408 label was defined after the .PROC directive.
1410 Note there's not need to diddle with the segment or fragment
1411 for the label symbol in this case. We have already switched
1412 into the new $CODE$ subspace at this point. */
1413 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
1415 label_symbol_struct
*label_symbol
= pa_get_label ();
1419 if (label_symbol
->lss_label
)
1421 last_call_info
->start_symbol
= label_symbol
->lss_label
;
1422 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
1425 /* Also handle allocation of a fixup to hold the unwind
1426 information when the label appears after the proc/procend. */
1427 if (within_entry_exit
)
1429 char *where
= frag_more (0);
1431 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
1432 NULL
, (offsetT
) 0, NULL
,
1433 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
1434 (int *)&last_call_info
->ci_unwind
.descriptor
);
1439 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1442 as_bad (_("Missing function name for .PROC"));
1445 /* Assemble the instruction. Results are saved into "the_insn". */
1448 /* Get somewhere to put the assembled instrution. */
1451 /* Output the opcode. */
1452 md_number_to_chars (to
, the_insn
.opcode
, 4);
1454 /* If necessary output more stuff. */
1455 if (the_insn
.reloc
!= R_HPPA_NONE
)
1456 fix_new_hppa (frag_now
, (to
- frag_now
->fr_literal
), 4, NULL
,
1457 (offsetT
) 0, &the_insn
.exp
, the_insn
.pcrel
,
1458 the_insn
.reloc
, the_insn
.field_selector
,
1459 the_insn
.format
, the_insn
.arg_reloc
, NULL
);
1462 if (debug_type
== DEBUG_DWARF2
)
1463 dwarf2_where (&debug_line
);
1468 /* Do the real work for assembling a single instruction. Store results
1469 into the global "the_insn" variable. */
1475 char *error_message
= "";
1476 char *s
, c
, *argstart
, *name
, *save_s
;
1480 int cmpltr
, nullif
, flag
, cond
, num
;
1481 unsigned long opcode
;
1482 struct pa_opcode
*insn
;
1485 /* We must have a valid space and subspace. */
1486 pa_check_current_space_and_subspace ();
1489 /* Convert everything up to the first whitespace character into lower
1491 for (s
= str
; *s
!= ' ' && *s
!= '\t' && *s
!= '\n' && *s
!= '\0'; s
++)
1495 /* Skip to something interesting. */
1496 for (s
= str
; isupper (*s
) || islower (*s
) || (*s
>= '0' && *s
<= '3'); ++s
)
1515 as_fatal (_("Unknown opcode: `%s'"), str
);
1520 /* Look up the opcode in the has table. */
1521 if ((insn
= (struct pa_opcode
*) hash_find (op_hash
, str
)) == NULL
)
1523 as_bad ("Unknown opcode: `%s'", str
);
1532 /* Mark the location where arguments for the instruction start, then
1533 start processing them. */
1537 /* Do some initialization. */
1538 opcode
= insn
->match
;
1539 strict
= (insn
->flags
& FLAG_STRICT
);
1540 memset (&the_insn
, 0, sizeof (the_insn
));
1542 the_insn
.reloc
= R_HPPA_NONE
;
1544 /* If this instruction is specific to a particular architecture,
1545 then set a new architecture. */
1546 /* But do not automatically promote to pa2.0. The automatic promotion
1547 crud is for compatability with HP's old assemblers only. */
1549 && bfd_get_mach (stdoutput
) < insn
->arch
)
1551 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, insn
->arch
))
1552 as_warn (_("could not update architecture and machine"));
1554 else if (bfd_get_mach (stdoutput
) < insn
->arch
)
1560 /* Build the opcode, checking as we go to make
1561 sure that the operands match. */
1562 for (args
= insn
->args
;; ++args
)
1564 /* Absorb white space in instruction. */
1565 while (*s
== ' ' || *s
== '\t')
1571 /* End of arguments. */
1587 /* These must match exactly. */
1596 /* Handle a 5 bit register or control register field at 10. */
1599 /* This should be more strict. Small steps. */
1600 if (strict
&& *s
!= '%')
1602 num
= pa_parse_number (&s
, 0);
1603 CHECK_FIELD (num
, 31, 0, 0);
1604 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1606 /* Handle %sar or %cr11. No bits get set, we just verify that it
1609 /* Skip whitespace before register. */
1610 while (*s
== ' ' || *s
== '\t')
1613 if (!strncasecmp(s
, "%sar", 4))
1618 else if (!strncasecmp(s
, "%cr11", 5))
1625 /* Handle a 5 bit register field at 15. */
1627 /* This should be more strict. Small steps. */
1628 if (strict
&& *s
!= '%')
1630 num
= pa_parse_number (&s
, 0);
1631 CHECK_FIELD (num
, 31, 0, 0);
1632 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1634 /* Handle a 5 bit register field at 31. */
1636 /* This should be more strict. Small steps. */
1637 if (strict
&& *s
!= '%')
1639 num
= pa_parse_number (&s
, 0);
1640 CHECK_FIELD (num
, 31, 0, 0);
1641 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1643 /* Handle a 5 bit register field at 10 and 15. */
1645 /* This should be more strict. Small steps. */
1646 if (strict
&& *s
!= '%')
1648 num
= pa_parse_number (&s
, 0);
1649 CHECK_FIELD (num
, 31, 0, 0);
1650 opcode
|= num
<< 16;
1651 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1653 /* Handle a 5 bit field length at 31. */
1655 num
= pa_get_absolute_expression (&the_insn
, &s
);
1656 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1659 CHECK_FIELD (num
, 32, 1, 0);
1660 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
1662 /* Handle a 5 bit immediate at 15. */
1664 num
= pa_get_absolute_expression (&the_insn
, &s
);
1665 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1668 /* When in strict mode, we want to just reject this
1669 match instead of giving an out of range error. */
1670 CHECK_FIELD (num
, 15, -16, strict
);
1671 low_sign_unext (num
, 5, &num
);
1672 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1674 /* Handle a 5 bit immediate at 31. */
1676 num
= pa_get_absolute_expression (&the_insn
, &s
);
1677 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1680 /* When in strict mode, we want to just reject this
1681 match instead of giving an out of range error. */
1682 CHECK_FIELD (num
, 15, -16, strict
)
1683 low_sign_unext (num
, 5, &num
);
1684 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1686 /* Handle an unsigned 5 bit immediate at 31. */
1688 num
= pa_get_absolute_expression (&the_insn
, &s
);
1689 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1692 CHECK_FIELD (num
, 31, 0, 0);
1693 INSERT_FIELD_AND_CONTINUE (opcode
, num
, strict
);
1695 /* Handle an unsigned 5 bit immediate at 15. */
1697 num
= pa_get_absolute_expression (&the_insn
, &s
);
1698 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1701 CHECK_FIELD (num
, 31, 0, strict
);
1702 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1704 /* Handle an unsigned 10 bit immediate at 15. */
1706 num
= pa_get_absolute_expression (&the_insn
, &s
);
1707 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
1710 CHECK_FIELD (num
, 1023, 0, strict
);
1711 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1713 /* Handle a 2 bit space identifier at 17. */
1715 /* This should be more strict. Small steps. */
1716 if (strict
&& *s
!= '%')
1718 num
= pa_parse_number (&s
, 0);
1719 CHECK_FIELD (num
, 3, 0, 1);
1720 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
1722 /* Handle a 3 bit space identifier at 18. */
1724 /* This should be more strict. Small steps. */
1725 if (strict
&& *s
!= '%')
1727 num
= pa_parse_number (&s
, 0);
1728 CHECK_FIELD (num
, 7, 0, 1);
1729 dis_assemble_3 (num
, &num
);
1730 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
1732 /* Handle all completers. */
1737 /* Handle a completer for an indexing load or store. */
1743 while (*s
== ',' && i
< 2)
1746 if (strncasecmp (s
, "sm", 2) == 0)
1753 else if (strncasecmp (s
, "m", 1) == 0)
1755 else if (strncasecmp (s
, "s", 1) == 0)
1757 /* When in strict mode this is a match failure. */
1761 as_bad (_("Invalid Indexed Load Completer."));
1766 as_bad (_("Invalid Indexed Load Completer Syntax."));
1768 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
1771 /* Handle a short load/store completer. */
1779 if (strncasecmp (s
, "ma", 2) == 0)
1784 else if (strncasecmp (s
, "mb", 2) == 0)
1789 /* When in strict mode this is a match failure. */
1793 as_bad (_("Invalid Short Load/Store Completer."));
1798 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1801 /* Handle a stbys completer. */
1807 while (*s
== ',' && i
< 2)
1810 if (strncasecmp (s
, "m", 1) == 0)
1812 else if (strncasecmp (s
, "b", 1) == 0)
1814 else if (strncasecmp (s
, "e", 1) == 0)
1816 /* When in strict mode this is a match failure. */
1820 as_bad (_("Invalid Store Bytes Short Completer"));
1825 as_bad (_("Invalid Store Bytes Short Completer"));
1827 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1830 /* Handle a local processor completer. */
1832 if (strncasecmp (s
, ",l", 2) != 0)
1837 /* Handle a PROBE read/write completer. */
1840 if (!strncasecmp (s
, ",w", 2))
1845 else if (!strncasecmp (s
, ",r", 2))
1851 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1853 /* Handle MFCTL wide completer. */
1855 if (strncasecmp (s
, ",w", 2) != 0)
1860 /* Handle an RFI restore completer. */
1863 if (!strncasecmp (s
, ",r", 2))
1869 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1871 /* Handle a system control completer. */
1873 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
1881 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1883 /* Handle intermediate/final completer for DCOR. */
1886 if (!strncasecmp (s
, ",i", 2))
1892 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
1894 /* Handle zero/sign extension completer. */
1897 if (!strncasecmp (s
, ",z", 2))
1903 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1905 /* Handle add completer. */
1908 if (!strncasecmp (s
, ",l", 2))
1913 else if (!strncasecmp (s
, ",tsv", 4))
1919 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
1921 /* Handle 64 bit carry for ADD. */
1924 if (!strncasecmp (s
, ",dc,tsv", 7) ||
1925 !strncasecmp (s
, ",tsv,dc", 7))
1930 else if (!strncasecmp (s
, ",dc", 3))
1938 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1940 /* Handle 32 bit carry for ADD. */
1943 if (!strncasecmp (s
, ",c,tsv", 6) ||
1944 !strncasecmp (s
, ",tsv,c", 6))
1949 else if (!strncasecmp (s
, ",c", 2))
1957 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1959 /* Handle trap on signed overflow. */
1962 if (!strncasecmp (s
, ",tsv", 4))
1968 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1970 /* Handle trap on condition and overflow. */
1973 if (!strncasecmp (s
, ",tc,tsv", 7) ||
1974 !strncasecmp (s
, ",tsv,tc", 7))
1979 else if (!strncasecmp (s
, ",tc", 3))
1987 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
1989 /* Handle 64 bit borrow for SUB. */
1992 if (!strncasecmp (s
, ",db,tsv", 7) ||
1993 !strncasecmp (s
, ",tsv,db", 7))
1998 else if (!strncasecmp (s
, ",db", 3))
2006 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2008 /* Handle 32 bit borrow for SUB. */
2011 if (!strncasecmp (s
, ",b,tsv", 6) ||
2012 !strncasecmp (s
, ",tsv,b", 6))
2017 else if (!strncasecmp (s
, ",b", 2))
2025 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2027 /* Handle trap condition completer for UADDCM. */
2030 if (!strncasecmp (s
, ",tc", 3))
2036 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
2038 /* Handle signed/unsigned at 21. */
2042 if (strncasecmp (s
, ",s", 2) == 0)
2047 else if (strncasecmp (s
, ",u", 2) == 0)
2053 INSERT_FIELD_AND_CONTINUE (opcode
, sign
, 10);
2056 /* Handle left/right combination at 17:18. */
2066 as_bad(_("Invalid left/right combination completer"));
2069 INSERT_FIELD_AND_CONTINUE (opcode
, lr
, 13);
2072 as_bad(_("Invalid left/right combination completer"));
2075 /* Handle saturation at 24:25. */
2079 if (strncasecmp (s
, ",ss", 3) == 0)
2084 else if (strncasecmp (s
, ",us", 3) == 0)
2090 INSERT_FIELD_AND_CONTINUE (opcode
, sat
, 6);
2093 /* Handle permutation completer. */
2097 int permloc
[4] = {13,10,8,6};
2117 as_bad(_("Invalid permutation completer"));
2119 opcode
|= perm
<< permloc
[i
];
2124 as_bad(_("Invalid permutation completer"));
2132 /* Handle all conditions. */
2138 /* Handle FP compare conditions. */
2140 cond
= pa_parse_fp_cmp_cond (&s
);
2141 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
2143 /* Handle an add condition. */
2152 /* 64 bit conditions. */
2165 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2169 if (strcmp (name
, "=") == 0)
2171 else if (strcmp (name
, "<") == 0)
2173 else if (strcmp (name
, "<=") == 0)
2175 else if (strcasecmp (name
, "nuv") == 0)
2177 else if (strcasecmp (name
, "znv") == 0)
2179 else if (strcasecmp (name
, "sv") == 0)
2181 else if (strcasecmp (name
, "od") == 0)
2183 else if (strcasecmp (name
, "tr") == 0)
2188 else if (strcmp (name
, "<>") == 0)
2193 else if (strcmp (name
, ">=") == 0)
2198 else if (strcmp (name
, ">") == 0)
2203 else if (strcasecmp (name
, "uv") == 0)
2208 else if (strcasecmp (name
, "vnz") == 0)
2213 else if (strcasecmp (name
, "nsv") == 0)
2218 else if (strcasecmp (name
, "ev") == 0)
2223 /* ",*" is a valid condition. */
2224 else if (*args
== 'a')
2225 as_bad (_("Invalid Add Condition: %s"), name
);
2228 opcode
|= cmpltr
<< 13;
2229 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2231 /* Handle non-negated add and branch condition. */
2233 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2236 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2239 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2241 /* Handle negated add and branch condition. */
2245 /* Handle wide-mode non-negated add and branch condition. */
2249 /* Handle wide-mode negated add and branch condition. */
2253 /* Handle a negated or non-negated add and branch
2257 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
2261 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
2264 as_bad (_("Invalid Compare/Subtract Condition"));
2269 /* Negated condition requires an opcode change. */
2273 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2275 /* Handle branch on bit conditions. */
2293 if (strncmp (s
, "<", 1) == 0)
2298 else if (strncmp (s
, ">=", 2) == 0)
2304 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
2306 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
2308 /* Handle a compare/subtract condition. */
2317 /* 64 bit conditions. */
2330 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2334 if (strcmp (name
, "=") == 0)
2336 else if (strcmp (name
, "<") == 0)
2338 else if (strcmp (name
, "<=") == 0)
2340 else if (strcasecmp (name
, "<<") == 0)
2342 else if (strcasecmp (name
, "<<=") == 0)
2344 else if (strcasecmp (name
, "sv") == 0)
2346 else if (strcasecmp (name
, "od") == 0)
2348 else if (strcasecmp (name
, "tr") == 0)
2353 else if (strcmp (name
, "<>") == 0)
2358 else if (strcmp (name
, ">=") == 0)
2363 else if (strcmp (name
, ">") == 0)
2368 else if (strcasecmp (name
, ">>=") == 0)
2373 else if (strcasecmp (name
, ">>") == 0)
2378 else if (strcasecmp (name
, "nsv") == 0)
2383 else if (strcasecmp (name
, "ev") == 0)
2388 /* ",*" is a valid condition. */
2389 else if (*args
!= 'S')
2390 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2394 opcode
|= cmpltr
<< 13;
2395 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2397 /* Handle a non-negated compare condition. */
2399 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2402 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2405 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2407 /* Handle a negated compare condition. */
2411 /* Handle a 64 bit non-negated compare condition. */
2415 /* Handle a 64 bit negated compare condition. */
2419 /* Handle a 64 bit cmpib condition. */
2423 /* Handle a negated or non-negated compare/subtract
2427 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2431 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2434 as_bad (_("Invalid Compare/Subtract Condition."));
2439 /* Negated condition requires an opcode change. */
2444 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2446 /* Handle a logical instruction condition. */
2455 /* 64 bit conditions. */
2468 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2474 if (strcmp (name
, "=") == 0)
2476 else if (strcmp (name
, "<") == 0)
2478 else if (strcmp (name
, "<=") == 0)
2480 else if (strcasecmp (name
, "od") == 0)
2482 else if (strcasecmp (name
, "tr") == 0)
2487 else if (strcmp (name
, "<>") == 0)
2492 else if (strcmp (name
, ">=") == 0)
2497 else if (strcmp (name
, ">") == 0)
2502 else if (strcasecmp (name
, "ev") == 0)
2507 /* ",*" is a valid condition. */
2508 else if (*args
!= 'L')
2509 as_bad (_("Invalid Logical Instruction Condition."));
2512 opcode
|= cmpltr
<< 13;
2513 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2515 /* Handle a shift/extract/deposit condition. */
2524 /* 64 bit conditions. */
2537 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2541 if (strcmp (name
, "=") == 0)
2543 else if (strcmp (name
, "<") == 0)
2545 else if (strcasecmp (name
, "od") == 0)
2547 else if (strcasecmp (name
, "tr") == 0)
2549 else if (strcmp (name
, "<>") == 0)
2551 else if (strcmp (name
, ">=") == 0)
2553 else if (strcasecmp (name
, "ev") == 0)
2555 /* Handle movb,n. Put things back the way they were.
2556 This includes moving s back to where it started. */
2557 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2563 /* ",*" is a valid condition. */
2564 else if (*args
!= 'X')
2565 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2568 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2570 /* Handle a unit instruction condition. */
2579 /* 64 bit conditions. */
2590 if (strncasecmp (s
, "sbz", 3) == 0)
2595 else if (strncasecmp (s
, "shz", 3) == 0)
2600 else if (strncasecmp (s
, "sdc", 3) == 0)
2605 else if (strncasecmp (s
, "sbc", 3) == 0)
2610 else if (strncasecmp (s
, "shc", 3) == 0)
2615 else if (strncasecmp (s
, "tr", 2) == 0)
2621 else if (strncasecmp (s
, "nbz", 3) == 0)
2627 else if (strncasecmp (s
, "nhz", 3) == 0)
2633 else if (strncasecmp (s
, "ndc", 3) == 0)
2639 else if (strncasecmp (s
, "nbc", 3) == 0)
2645 else if (strncasecmp (s
, "nhc", 3) == 0)
2651 /* ",*" is a valid condition. */
2652 else if (*args
!= 'U')
2653 as_bad (_("Invalid Unit Instruction Condition."));
2655 opcode
|= cmpltr
<< 13;
2656 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2664 /* Handle a nullification completer for branch instructions. */
2666 nullif
= pa_parse_nullif (&s
);
2667 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2669 /* Handle a nullification completer for copr and spop insns. */
2671 nullif
= pa_parse_nullif (&s
);
2672 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2675 /* Handle a 11 bit immediate at 31. */
2677 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2680 if (the_insn
.exp
.X_op
== O_constant
)
2682 num
= evaluate_absolute (&the_insn
);
2683 CHECK_FIELD (num
, 1023, -1024, 0);
2684 low_sign_unext (num
, 11, &num
);
2685 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2689 if (is_DP_relative (the_insn
.exp
))
2690 the_insn
.reloc
= R_HPPA_GOTOFF
;
2691 else if (is_PC_relative (the_insn
.exp
))
2692 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2694 the_insn
.reloc
= R_HPPA
;
2695 the_insn
.format
= 11;
2700 /* Handle a 14 bit immediate at 31. */
2702 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2705 if (the_insn
.exp
.X_op
== O_constant
)
2707 num
= evaluate_absolute (&the_insn
);
2708 CHECK_FIELD (num
, 8191, -8192, 0);
2709 low_sign_unext (num
, 14, &num
);
2710 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2714 if (is_DP_relative (the_insn
.exp
))
2715 the_insn
.reloc
= R_HPPA_GOTOFF
;
2716 else if (is_PC_relative (the_insn
.exp
))
2717 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2719 the_insn
.reloc
= R_HPPA
;
2720 the_insn
.format
= 14;
2724 /* Handle a 21 bit immediate at 31. */
2726 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2729 if (the_insn
.exp
.X_op
== O_constant
)
2731 num
= evaluate_absolute (&the_insn
);
2732 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2733 dis_assemble_21 (num
, &num
);
2734 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2738 if (is_DP_relative (the_insn
.exp
))
2739 the_insn
.reloc
= R_HPPA_GOTOFF
;
2740 else if (is_PC_relative (the_insn
.exp
))
2741 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2743 the_insn
.reloc
= R_HPPA
;
2744 the_insn
.format
= 21;
2748 /* Handle a 12 bit branch displacement. */
2750 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2754 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2756 unsigned int w1
, w
, result
;
2758 num
= evaluate_absolute (&the_insn
);
2761 as_bad (_("Branch to unaligned address"));
2764 CHECK_FIELD (num
, 8199, -8184, 0);
2765 sign_unext ((num
- 8) >> 2, 12, &result
);
2766 dis_assemble_12 (result
, &w1
, &w
);
2767 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2771 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2772 the_insn
.format
= 12;
2773 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2774 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2779 /* Handle a 17 bit branch displacement. */
2781 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2785 if (!the_insn
.exp
.X_add_symbol
2786 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2789 unsigned int w2
, w1
, w
, result
;
2791 num
= evaluate_absolute (&the_insn
);
2794 as_bad (_("Branch to unaligned address"));
2797 CHECK_FIELD (num
, 262143, -262144, 0);
2799 if (the_insn
.exp
.X_add_symbol
)
2802 sign_unext (num
>> 2, 17, &result
);
2803 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2804 INSERT_FIELD_AND_CONTINUE (opcode
,
2805 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2809 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2810 the_insn
.format
= 17;
2811 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2812 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2816 /* Handle an absolute 17 bit branch target. */
2818 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2822 if (!the_insn
.exp
.X_add_symbol
2823 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2826 unsigned int w2
, w1
, w
, result
;
2828 num
= evaluate_absolute (&the_insn
);
2831 as_bad (_("Branch to unaligned address"));
2834 CHECK_FIELD (num
, 262143, -262144, 0);
2836 if (the_insn
.exp
.X_add_symbol
)
2839 sign_unext (num
>> 2, 17, &result
);
2840 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2841 INSERT_FIELD_AND_CONTINUE (opcode
,
2842 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2846 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2847 the_insn
.format
= 17;
2848 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2849 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2853 /* Handle '%r1' implicit operand of addil instruction. */
2855 if (*s
== ',' && *(s
+ 1) == '%' && *(s
+ 3) == '1'
2856 && (*(s
+ 2) == 'r' || *(s
+ 2) == 'R'))
2864 /* Handle a 2 bit shift count at 25. */
2866 num
= pa_get_absolute_expression (&the_insn
, &s
);
2867 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2870 CHECK_FIELD (num
, 3, 1, strict
);
2871 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2873 /* Handle a 4 bit shift count at 25. */
2875 num
= pa_get_absolute_expression (&the_insn
, &s
);
2876 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2879 CHECK_FIELD (num
, 15, 0, strict
);
2880 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2882 /* Handle a 5 bit shift count at 26. */
2884 num
= pa_get_absolute_expression (&the_insn
, &s
);
2885 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2888 CHECK_FIELD (num
, 31, 0, strict
);
2889 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2891 /* Handle a 6 bit shift count at 20,22:26. */
2893 num
= pa_get_absolute_expression (&the_insn
, &s
);
2894 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2897 CHECK_FIELD (num
, 63, 0, strict
);
2899 opcode
|= (num
& 0x20) << 6;
2900 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2902 /* Handle a 6 bit field length at 23,27:31. */
2905 num
= pa_get_absolute_expression (&the_insn
, &s
);
2906 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2909 CHECK_FIELD (num
, 64, 1, strict
);
2911 opcode
|= (num
& 0x20) << 3;
2912 num
= 31 - (num
& 0x1f);
2913 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2915 /* Handle a 6 bit field length at 19,27:31. */
2917 num
= pa_get_absolute_expression (&the_insn
, &s
);
2918 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2921 CHECK_FIELD (num
, 64, 1, strict
);
2923 opcode
|= (num
& 0x20) << 7;
2924 num
= 31 - (num
& 0x1f);
2925 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2927 /* Handle a 5 bit bit position at 26. */
2929 num
= pa_get_absolute_expression (&the_insn
, &s
);
2930 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2933 CHECK_FIELD (num
, 31, 0, strict
);
2934 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2936 /* Handle a 6 bit bit position at 20,22:26. */
2938 num
= pa_get_absolute_expression (&the_insn
, &s
);
2939 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2942 CHECK_FIELD (num
, 63, 0, strict
);
2943 opcode
|= (num
& 0x20) << 6;
2944 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2946 /* Handle a 5 bit immediate at 10. */
2948 num
= pa_get_absolute_expression (&the_insn
, &s
);
2949 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2951 if (the_insn
.exp
.X_op
!= O_constant
)
2954 CHECK_FIELD (num
, 31, 0, strict
);
2955 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2957 /* Handle a 9 bit immediate at 28. */
2959 num
= pa_get_absolute_expression (&the_insn
, &s
);
2960 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2963 CHECK_FIELD (num
, 511, 1, strict
);
2964 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
2966 /* Handle a 13 bit immediate at 18. */
2968 num
= pa_get_absolute_expression (&the_insn
, &s
);
2969 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2972 CHECK_FIELD (num
, 8191, 0, strict
);
2973 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2975 /* Handle a 26 bit immediate at 31. */
2977 num
= pa_get_absolute_expression (&the_insn
, &s
);
2978 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2981 CHECK_FIELD (num
, 671108864, 0, strict
);
2982 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2984 /* Handle a 3 bit SFU identifier at 25. */
2987 as_bad (_("Invalid SFU identifier"));
2988 num
= pa_get_absolute_expression (&the_insn
, &s
);
2989 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
2992 CHECK_FIELD (num
, 7, 0, strict
);
2993 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2995 /* Handle a 20 bit SOP field for spop0. */
2997 num
= pa_get_absolute_expression (&the_insn
, &s
);
2998 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3001 CHECK_FIELD (num
, 1048575, 0, strict
);
3002 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
3003 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3005 /* Handle a 15bit SOP field for spop1. */
3007 num
= pa_get_absolute_expression (&the_insn
, &s
);
3008 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3011 CHECK_FIELD (num
, 32767, 0, strict
);
3012 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
3014 /* Handle a 10bit SOP field for spop3. */
3016 num
= pa_get_absolute_expression (&the_insn
, &s
);
3017 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3020 CHECK_FIELD (num
, 1023, 0, strict
);
3021 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
3022 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3024 /* Handle a 15 bit SOP field for spop2. */
3026 num
= pa_get_absolute_expression (&the_insn
, &s
);
3027 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3030 CHECK_FIELD (num
, 32767, 0, strict
);
3031 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
3032 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3034 /* Handle a 3-bit co-processor ID field. */
3037 as_bad (_("Invalid COPR identifier"));
3038 num
= pa_get_absolute_expression (&the_insn
, &s
);
3039 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3042 CHECK_FIELD (num
, 7, 0, strict
);
3043 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
3045 /* Handle a 22bit SOP field for copr. */
3047 num
= pa_get_absolute_expression (&the_insn
, &s
);
3048 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3051 CHECK_FIELD (num
, 4194303, 0, strict
);
3052 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
3053 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3056 /* Handle a source FP operand format completer. */
3058 flag
= pa_parse_fp_format (&s
);
3059 the_insn
.fpof1
= flag
;
3060 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3062 /* Handle a destination FP operand format completer. */
3064 /* pa_parse_format needs the ',' prefix. */
3066 flag
= pa_parse_fp_format (&s
);
3067 the_insn
.fpof2
= flag
;
3068 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
3070 /* Handle a source FP operand format completer at 20. */
3072 flag
= pa_parse_fp_format (&s
);
3073 the_insn
.fpof1
= flag
;
3074 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3076 /* Handle a floating point operand format at 26.
3077 Only allows single and double precision. */
3079 flag
= pa_parse_fp_format (&s
);
3085 the_insn
.fpof1
= flag
;
3091 as_bad (_("Invalid Floating Point Operand Format."));
3095 /* Handle all floating point registers. */
3099 /* Float target register. */
3101 /* This should be more strict. Small steps. */
3102 if (strict
&& *s
!= '%')
3104 num
= pa_parse_number (&s
, 0);
3105 CHECK_FIELD (num
, 31, 0, 0);
3106 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3108 /* Float target register with L/R selection. */
3111 struct pa_11_fp_reg_struct result
;
3113 /* This should be more strict. Small steps. */
3114 if (strict
&& *s
!= '%')
3116 pa_parse_number (&s
, &result
);
3117 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3118 opcode
|= result
.number_part
;
3120 /* 0x30 opcodes are FP arithmetic operation opcodes
3121 and need to be turned into 0x38 opcodes. This
3122 is not necessary for loads/stores. */
3123 if (need_pa11_opcode (&the_insn
, &result
)
3124 && ((opcode
& 0xfc000000) == 0x30000000))
3127 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
3130 /* Float operand 1. */
3133 struct pa_11_fp_reg_struct result
;
3135 /* This should be more strict. Small steps. */
3136 if (strict
&& *s
!= '%')
3138 pa_parse_number (&s
, &result
);
3139 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3140 opcode
|= result
.number_part
<< 21;
3141 if (need_pa11_opcode (&the_insn
, &result
))
3143 opcode
|= (result
.l_r_select
& 1) << 7;
3149 /* Float operand 1 with L/R selection. */
3152 struct pa_11_fp_reg_struct result
;
3154 /* This should be more strict. Small steps. */
3155 if (strict
&& *s
!= '%')
3157 pa_parse_number (&s
, &result
);
3158 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3159 opcode
|= result
.number_part
<< 21;
3160 opcode
|= (result
.l_r_select
& 1) << 7;
3164 /* Float operand 2. */
3167 struct pa_11_fp_reg_struct result
;
3169 /* This should be more strict. Small steps. */
3170 if (strict
&& *s
!= '%')
3172 pa_parse_number (&s
, &result
);
3173 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3174 opcode
|= (result
.number_part
& 0x1f) << 16;
3175 if (need_pa11_opcode (&the_insn
, &result
))
3177 opcode
|= (result
.l_r_select
& 1) << 12;
3183 /* Float operand 2 with L/R selection. */
3186 struct pa_11_fp_reg_struct result
;
3188 /* This should be more strict. Small steps. */
3189 if (strict
&& *s
!= '%')
3191 pa_parse_number (&s
, &result
);
3192 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3193 opcode
|= (result
.number_part
& 0x1f) << 16;
3194 opcode
|= (result
.l_r_select
& 1) << 12;
3198 /* Float operand 3 for fmpyfadd, fmpynfadd. */
3201 struct pa_11_fp_reg_struct result
;
3204 /* This should be more strict. Small steps. */
3205 if (strict
&& *s
!= '%')
3207 pa_parse_number (&s
, &result
);
3208 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3209 opcode
|= (result
.number_part
& 0x1c) << 11;
3210 opcode
|= (result
.number_part
& 0x3) << 9;
3211 opcode
|= (result
.l_r_select
& 1) << 8;
3215 /* Float mult operand 1 for fmpyadd, fmpysub */
3218 struct pa_11_fp_reg_struct result
;
3220 /* This should be more strict. Small steps. */
3221 if (strict
&& *s
!= '%')
3223 pa_parse_number (&s
, &result
);
3224 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3225 if (the_insn
.fpof1
== SGL
)
3227 if (result
.number_part
< 16)
3229 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3233 result
.number_part
&= 0xF;
3234 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3236 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
3239 /* Float mult operand 2 for fmpyadd, fmpysub */
3242 struct pa_11_fp_reg_struct result
;
3244 /* This should be more strict. Small steps. */
3245 if (strict
&& *s
!= '%')
3247 pa_parse_number (&s
, &result
);
3248 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3249 if (the_insn
.fpof1
== SGL
)
3251 if (result
.number_part
< 16)
3253 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3256 result
.number_part
&= 0xF;
3257 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3259 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
3262 /* Float mult target for fmpyadd, fmpysub */
3265 struct pa_11_fp_reg_struct result
;
3267 /* This should be more strict. Small steps. */
3268 if (strict
&& *s
!= '%')
3270 pa_parse_number (&s
, &result
);
3271 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3272 if (the_insn
.fpof1
== SGL
)
3274 if (result
.number_part
< 16)
3276 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3279 result
.number_part
&= 0xF;
3280 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3282 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
3285 /* Float add operand 1 for fmpyadd, fmpysub */
3288 struct pa_11_fp_reg_struct result
;
3290 /* This should be more strict. Small steps. */
3291 if (strict
&& *s
!= '%')
3293 pa_parse_number (&s
, &result
);
3294 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3295 if (the_insn
.fpof1
== SGL
)
3297 if (result
.number_part
< 16)
3299 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3302 result
.number_part
&= 0xF;
3303 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3305 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
3308 /* Float add target for fmpyadd, fmpysub */
3311 struct pa_11_fp_reg_struct result
;
3313 /* This should be more strict. Small steps. */
3314 if (strict
&& *s
!= '%')
3316 pa_parse_number (&s
, &result
);
3317 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3318 if (the_insn
.fpof1
== SGL
)
3320 if (result
.number_part
< 16)
3322 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3325 result
.number_part
&= 0xF;
3326 result
.number_part
|= (result
.l_r_select
& 1) << 4;
3328 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
3336 /* Handle L/R register halves like 'x'. */
3339 struct pa_11_fp_reg_struct result
;
3341 /* This should be more strict. Small steps. */
3342 if (strict
&& *s
!= '%')
3344 pa_parse_number (&s
, &result
);
3345 CHECK_FIELD (result
.number_part
, 31, 0, 0);
3346 opcode
|= (result
.number_part
& 0x1f) << 16;
3347 if (need_pa11_opcode (&the_insn
, &result
))
3349 opcode
|= (result
.l_r_select
& 1) << 1;
3361 /* Check if the args matched. */
3364 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
3365 && !strcmp (insn
->name
, insn
[1].name
))
3373 as_bad (_("Invalid operands %s"), error_message
);
3381 if (debug_type
== DEBUG_DWARF2
)
3385 addr
= frag_now
->fr_address
+ frag_now_fix ();
3386 dwarf2_gen_line_info (addr
, &debug_line
);
3390 the_insn
.opcode
= opcode
;
3393 /* Turn a string in input_line_pointer into a floating point constant of type
3394 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3395 emitted is stored in *sizeP . An error message or NULL is returned. */
3397 #define MAX_LITTLENUMS 6
3400 md_atof (type
, litP
, sizeP
)
3406 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
3407 LITTLENUM_TYPE
*wordP
;
3439 return _("Bad call to MD_ATOF()");
3441 t
= atof_ieee (input_line_pointer
, type
, words
);
3443 input_line_pointer
= t
;
3444 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
3445 for (wordP
= words
; prec
--;)
3447 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
3448 litP
+= sizeof (LITTLENUM_TYPE
);
3453 /* Write out big-endian. */
3456 md_number_to_chars (buf
, val
, n
)
3461 number_to_chars_bigendian (buf
, val
, n
);
3464 /* Translate internal representation of relocation info to BFD target
3468 tc_gen_reloc (section
, fixp
)
3473 struct hppa_fix_struct
*hppa_fixp
;
3474 bfd_reloc_code_real_type code
;
3475 static arelent
*no_relocs
= NULL
;
3477 bfd_reloc_code_real_type
**codes
;
3481 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
3482 if (fixp
->fx_addsy
== 0)
3484 assert (hppa_fixp
!= 0);
3485 assert (section
!= 0);
3487 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
3489 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3490 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3491 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
3493 hppa_fixp
->fx_r_format
,
3494 hppa_fixp
->fx_r_field
,
3495 fixp
->fx_subsy
!= NULL
,
3496 symbol_get_bfdsym (fixp
->fx_addsy
));
3501 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
3504 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
3505 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
3506 for (i
= 0; i
< n_relocs
; i
++)
3507 relocs
[i
] = &reloc
[i
];
3509 relocs
[n_relocs
] = NULL
;
3512 switch (fixp
->fx_r_type
)
3515 assert (n_relocs
== 1);
3519 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3520 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3521 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3522 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3523 reloc
->addend
= 0; /* default */
3525 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
3527 /* Now, do any processing that is dependent on the relocation type. */
3530 case R_PARISC_DLTREL21L
:
3531 case R_PARISC_DLTREL14R
:
3532 case R_PARISC_DLTREL14F
:
3533 case R_PARISC_PLABEL32
:
3534 case R_PARISC_PLABEL21L
:
3535 case R_PARISC_PLABEL14R
:
3536 /* For plabel relocations, the addend of the
3537 relocation should be either 0 (no static link) or 2
3538 (static link required).
3540 FIXME: We always assume no static link!
3542 We also slam a zero addend into the DLT relative relocs;
3543 it doesn't make a lot of sense to use any addend since
3544 it gets you a different (eg unknown) DLT entry. */
3548 case R_PARISC_PCREL21L
:
3549 case R_PARISC_PCREL17R
:
3550 case R_PARISC_PCREL17F
:
3551 case R_PARISC_PCREL17C
:
3552 case R_PARISC_PCREL14R
:
3553 case R_PARISC_PCREL14F
:
3554 /* The constant is stored in the instruction. */
3555 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3558 reloc
->addend
= fixp
->fx_offset
;
3565 /* Walk over reach relocation returned by the BFD backend. */
3566 for (i
= 0; i
< n_relocs
; i
++)
3570 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3571 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3572 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3573 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3578 /* The only time we ever use a R_COMP2 fixup is for the difference
3579 of two symbols. With that in mind we fill in all four
3580 relocs now and break out of the loop. */
3582 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3583 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
3584 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3585 relocs
[0]->addend
= 0;
3586 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3587 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3588 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
3589 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3590 relocs
[1]->addend
= 0;
3591 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3592 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3593 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3594 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3595 relocs
[2]->addend
= 0;
3596 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3597 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3598 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3599 relocs
[3]->addend
= 0;
3600 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3601 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3602 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3603 relocs
[4]->addend
= 0;
3607 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3613 /* For plabel relocations, the addend of the
3614 relocation should be either 0 (no static link) or 2
3615 (static link required).
3617 FIXME: We always assume no static link!
3619 We also slam a zero addend into the DLT relative relocs;
3620 it doesn't make a lot of sense to use any addend since
3621 it gets you a different (eg unknown) DLT entry. */
3622 relocs
[i
]->addend
= 0;
3637 /* There is no symbol or addend associated with these fixups. */
3638 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3639 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3640 relocs
[i
]->addend
= 0;
3646 /* There is no symbol associated with these fixups. */
3647 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3648 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3649 relocs
[i
]->addend
= fixp
->fx_offset
;
3653 relocs
[i
]->addend
= fixp
->fx_offset
;
3663 /* Process any machine dependent frag types. */
3666 md_convert_frag (abfd
, sec
, fragP
)
3668 register asection
*sec
;
3669 register fragS
*fragP
;
3671 unsigned int address
;
3673 if (fragP
->fr_type
== rs_machine_dependent
)
3675 switch ((int) fragP
->fr_subtype
)
3678 fragP
->fr_type
= rs_fill
;
3679 know (fragP
->fr_var
== 1);
3680 know (fragP
->fr_next
);
3681 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3682 if (address
% fragP
->fr_offset
)
3685 fragP
->fr_next
->fr_address
3690 fragP
->fr_offset
= 0;
3696 /* Round up a section size to the appropriate boundary. */
3699 md_section_align (segment
, size
)
3703 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3704 int align2
= (1 << align
) - 1;
3706 return (size
+ align2
) & ~align2
;
3709 /* Return the approximate size of a frag before relaxation has occurred. */
3711 md_estimate_size_before_relax (fragP
, segment
)
3712 register fragS
*fragP
;
3719 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3725 CONST
char *md_shortopts
= "";
3726 struct option md_longopts
[] = {
3727 {NULL
, no_argument
, NULL
, 0}
3729 size_t md_longopts_size
= sizeof(md_longopts
);
3732 md_parse_option (c
, arg
)
3740 md_show_usage (stream
)
3745 /* We have no need to default values of symbols. */
3748 md_undefined_symbol (name
)
3754 /* Apply a fixup to an instruction. */
3757 md_apply_fix (fixP
, valp
)
3761 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3762 struct hppa_fix_struct
*hppa_fixP
;
3763 long new_val
, result
= 0;
3764 unsigned int w1
, w2
, w
, resulti
;
3766 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3767 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3768 never be "applied" (they are just markers). Likewise for
3769 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3771 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3772 || fixP
->fx_r_type
== R_HPPA_EXIT
3773 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3774 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3775 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3778 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3779 fixups are considered not adjustable, which in turn causes
3780 adjust_reloc_syms to not set fx_offset. Ugh. */
3781 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3783 fixP
->fx_offset
= *valp
;
3788 /* There should have been an HPPA specific fixup associated
3789 with the GAS fixup. */
3792 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3793 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3795 /* If there is a symbol associated with this fixup, then it's something
3796 which will need a SOM relocation (except for some PC-relative relocs).
3797 In such cases we should treat the "val" or "addend" as zero since it
3798 will be added in as needed from fx_offset in tc_gen_reloc. */
3799 if ((fixP
->fx_addsy
!= NULL
3800 || fixP
->fx_r_type
== R_HPPA_NONE
)
3805 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3807 /* These field selectors imply that we do not want an addend. */
3808 else if (hppa_fixP
->fx_r_field
== e_psel
3809 || hppa_fixP
->fx_r_field
== e_rpsel
3810 || hppa_fixP
->fx_r_field
== e_lpsel
3811 || hppa_fixP
->fx_r_field
== e_tsel
3812 || hppa_fixP
->fx_r_field
== e_rtsel
3813 || hppa_fixP
->fx_r_field
== e_ltsel
)
3814 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3815 /* This is truely disgusting. The machine independent code blindly
3816 adds in the value of the symbol being relocated against. Damn! */
3818 && fixP
->fx_addsy
!= NULL
3819 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3820 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3821 0, hppa_fixP
->fx_r_field
);
3824 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3826 /* Handle pc-relative exceptions from above. */
3827 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3828 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3829 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3833 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3834 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3835 hppa_fixP
->fx_arg_reloc
)
3837 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3838 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3840 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3842 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3843 #undef arg_reloc_stub_needed
3847 /* Handle all opcodes with the 'j' operand type. */
3849 CHECK_FIELD (new_val
, 8191, -8192, 0);
3851 /* Mask off 14 bits to be changed. */
3852 bfd_put_32 (stdoutput
,
3853 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3855 low_sign_unext (new_val
, 14, &resulti
);
3859 /* Handle all opcodes with the 'k' operand type. */
3861 CHECK_FIELD (new_val
, 2097152, 0, 0);
3863 /* Mask off 21 bits to be changed. */
3864 bfd_put_32 (stdoutput
,
3865 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3867 dis_assemble_21 (new_val
, &resulti
);
3871 /* Handle all the opcodes with the 'i' operand type. */
3873 CHECK_FIELD (new_val
, 1023, -1023, 0);
3875 /* Mask off 11 bits to be changed. */
3876 bfd_put_32 (stdoutput
,
3877 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3879 low_sign_unext (new_val
, 11, &resulti
);
3883 /* Handle all the opcodes with the 'w' operand type. */
3885 CHECK_FIELD (new_val
, 8199, -8184, 0);
3887 /* Mask off 11 bits to be changed. */
3888 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3889 bfd_put_32 (stdoutput
,
3890 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3893 dis_assemble_12 (resulti
, &w1
, &w
);
3894 result
= ((w1
<< 2) | w
);
3897 /* Handle some of the opcodes with the 'W' operand type. */
3900 int distance
= *valp
;
3902 CHECK_FIELD (new_val
, 262143, -262144, 0);
3904 /* If this is an absolute branch (ie no link) with an out of
3905 range target, then we want to complain. */
3906 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3907 && (distance
> 262143 || distance
< -262144)
3908 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3909 CHECK_FIELD (distance
, 262143, -262144, 0);
3911 /* Mask off 17 bits to be changed. */
3912 bfd_put_32 (stdoutput
,
3913 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3915 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3916 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3917 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3923 bfd_put_32 (stdoutput
, new_val
, buf
);
3927 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3931 /* Insert the relocation. */
3932 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3937 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3938 (unsigned int) fixP
, fixP
->fx_r_type
);
3943 /* Exactly what point is a PC-relative offset relative TO?
3944 On the PA, they're relative to the address of the offset. */
3947 md_pcrel_from (fixP
)
3950 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3953 /* Return nonzero if the input line pointer is at the end of
3957 is_end_of_statement ()
3959 return ((*input_line_pointer
== '\n')
3960 || (*input_line_pointer
== ';')
3961 || (*input_line_pointer
== '!'));
3964 /* Read a number from S. The number might come in one of many forms,
3965 the most common will be a hex or decimal constant, but it could be
3966 a pre-defined register (Yuk!), or an absolute symbol.
3968 Return a number or -1 for failure.
3970 When parsing PA-89 FP register numbers RESULT will be
3971 the address of a structure to return information about
3972 L/R half of FP registers, store results there as appropriate.
3974 pa_parse_number can not handle negative constants and will fail
3975 horribly if it is passed such a constant. */
3978 pa_parse_number (s
, result
)
3980 struct pa_11_fp_reg_struct
*result
;
3989 /* Skip whitespace before the number. */
3990 while (*p
== ' ' || *p
== '\t')
3993 /* Store info in RESULT if requested by caller. */
3996 result
->number_part
= -1;
3997 result
->l_r_select
= -1;
4003 /* Looks like a number. */
4006 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
4008 /* The number is specified in hex. */
4010 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
4011 || ((*p
>= 'A') && (*p
<= 'F')))
4014 num
= num
* 16 + *p
- '0';
4015 else if (*p
>= 'a' && *p
<= 'f')
4016 num
= num
* 16 + *p
- 'a' + 10;
4018 num
= num
* 16 + *p
- 'A' + 10;
4024 /* The number is specified in decimal. */
4025 while (isdigit (*p
))
4027 num
= num
* 10 + *p
- '0';
4032 /* Store info in RESULT if requested by the caller. */
4035 result
->number_part
= num
;
4037 if (IS_R_SELECT (p
))
4039 result
->l_r_select
= 1;
4042 else if (IS_L_SELECT (p
))
4044 result
->l_r_select
= 0;
4048 result
->l_r_select
= 0;
4053 /* The number might be a predefined register. */
4058 /* Tege hack: Special case for general registers as the general
4059 code makes a binary search with case translation, and is VERY
4064 if (*p
== 'e' && *(p
+ 1) == 't'
4065 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
4068 num
= *p
- '0' + 28;
4076 else if (!isdigit (*p
))
4079 as_bad (_("Undefined register: '%s'."), name
);
4085 num
= num
* 10 + *p
++ - '0';
4086 while (isdigit (*p
));
4091 /* Do a normal register search. */
4092 while (is_part_of_name (c
))
4098 status
= reg_name_search (name
);
4104 as_bad (_("Undefined register: '%s'."), name
);
4110 /* Store info in RESULT if requested by caller. */
4113 result
->number_part
= num
;
4114 if (IS_R_SELECT (p
- 1))
4115 result
->l_r_select
= 1;
4116 else if (IS_L_SELECT (p
- 1))
4117 result
->l_r_select
= 0;
4119 result
->l_r_select
= 0;
4124 /* And finally, it could be a symbol in the absolute section which
4125 is effectively a constant. */
4129 while (is_part_of_name (c
))
4135 if ((sym
= symbol_find (name
)) != NULL
)
4137 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
4138 num
= S_GET_VALUE (sym
);
4142 as_bad (_("Non-absolute symbol: '%s'."), name
);
4148 /* There is where we'd come for an undefined symbol
4149 or for an empty string. For an empty string we
4150 will return zero. That's a concession made for
4151 compatability with the braindamaged HP assemblers. */
4157 as_bad (_("Undefined absolute constant: '%s'."), name
);
4163 /* Store info in RESULT if requested by caller. */
4166 result
->number_part
= num
;
4167 if (IS_R_SELECT (p
- 1))
4168 result
->l_r_select
= 1;
4169 else if (IS_L_SELECT (p
- 1))
4170 result
->l_r_select
= 0;
4172 result
->l_r_select
= 0;
4180 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
4182 /* Given NAME, find the register number associated with that name, return
4183 the integer value associated with the given name or -1 on failure. */
4186 reg_name_search (name
)
4189 int middle
, low
, high
;
4193 high
= REG_NAME_CNT
- 1;
4197 middle
= (low
+ high
) / 2;
4198 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
4204 return pre_defined_registers
[middle
].value
;
4206 while (low
<= high
);
4212 /* Return nonzero if the given INSN and L/R information will require
4213 a new PA-1.1 opcode. */
4216 need_pa11_opcode (insn
, result
)
4218 struct pa_11_fp_reg_struct
*result
;
4220 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
4222 /* If this instruction is specific to a particular architecture,
4223 then set a new architecture. */
4224 if (bfd_get_mach (stdoutput
) < pa11
)
4226 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
4227 as_warn (_("could not update architecture and machine"));
4235 /* Parse a condition for a fcmp instruction. Return the numerical
4236 code associated with the condition. */
4239 pa_parse_fp_cmp_cond (s
)
4246 for (i
= 0; i
< 32; i
++)
4248 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
4249 strlen (fp_cond_map
[i
].string
)) == 0)
4251 cond
= fp_cond_map
[i
].cond
;
4252 *s
+= strlen (fp_cond_map
[i
].string
);
4253 /* If not a complete match, back up the input string and
4255 if (**s
!= ' ' && **s
!= '\t')
4257 *s
-= strlen (fp_cond_map
[i
].string
);
4260 while (**s
== ' ' || **s
== '\t')
4266 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
4268 /* Advance over the bogus completer. */
4269 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4276 /* Parse an FP operand format completer returning the completer
4279 static fp_operand_format
4280 pa_parse_fp_format (s
)
4289 if (strncasecmp (*s
, "sgl", 3) == 0)
4294 else if (strncasecmp (*s
, "dbl", 3) == 0)
4299 else if (strncasecmp (*s
, "quad", 4) == 0)
4306 format
= ILLEGAL_FMT
;
4307 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
4314 /* Convert from a selector string into a selector type. */
4317 pa_chk_field_selector (str
)
4320 int middle
, low
, high
;
4324 /* Read past any whitespace. */
4325 /* FIXME: should we read past newlines and formfeeds??? */
4326 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
4329 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
4330 name
[0] = tolower ((*str
)[0]),
4332 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
4333 name
[0] = tolower ((*str
)[0]),
4334 name
[1] = tolower ((*str
)[1]),
4336 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
4337 name
[0] = tolower ((*str
)[0]),
4338 name
[1] = tolower ((*str
)[1]),
4339 name
[2] = tolower ((*str
)[2]),
4345 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
4349 middle
= (low
+ high
) / 2;
4350 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
4357 *str
+= strlen (name
) + 1;
4359 if (selector_table
[middle
].field_selector
== e_nsel
)
4362 return selector_table
[middle
].field_selector
;
4365 while (low
<= high
);
4370 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
4373 get_expression (str
)
4379 save_in
= input_line_pointer
;
4380 input_line_pointer
= str
;
4381 seg
= expression (&the_insn
.exp
);
4382 if (!(seg
== absolute_section
4383 || seg
== undefined_section
4384 || SEG_NORMAL (seg
)))
4386 as_warn (_("Bad segment in expression."));
4387 expr_end
= input_line_pointer
;
4388 input_line_pointer
= save_in
;
4391 expr_end
= input_line_pointer
;
4392 input_line_pointer
= save_in
;
4396 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
4398 pa_get_absolute_expression (insn
, strp
)
4404 insn
->field_selector
= pa_chk_field_selector (strp
);
4405 save_in
= input_line_pointer
;
4406 input_line_pointer
= *strp
;
4407 expression (&insn
->exp
);
4408 /* This is not perfect, but is a huge improvement over doing nothing.
4410 The PA assembly syntax is ambigious in a variety of ways. Consider
4411 this string "4 %r5" Is that the number 4 followed by the register
4412 r5, or is that 4 MOD 5?
4414 If we get a modulo expresion When looking for an absolute, we try
4415 again cutting off the input string at the first whitespace character. */
4416 if (insn
->exp
.X_op
== O_modulus
)
4421 input_line_pointer
= *strp
;
4423 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4429 retval
= pa_get_absolute_expression (insn
, strp
);
4431 input_line_pointer
= save_in
;
4433 return evaluate_absolute (insn
);
4435 /* When in strict mode we have a non-match, fix up the pointers
4436 and return to our caller. */
4437 if (insn
->exp
.X_op
!= O_constant
&& strict
)
4439 expr_end
= input_line_pointer
;
4440 input_line_pointer
= save_in
;
4443 if (insn
->exp
.X_op
!= O_constant
)
4445 as_bad (_("Bad segment (should be absolute)."));
4446 expr_end
= input_line_pointer
;
4447 input_line_pointer
= save_in
;
4450 expr_end
= input_line_pointer
;
4451 input_line_pointer
= save_in
;
4452 return evaluate_absolute (insn
);
4455 /* Evaluate an absolute expression EXP which may be modified by
4456 the selector FIELD_SELECTOR. Return the value of the expression. */
4458 evaluate_absolute (insn
)
4463 int field_selector
= insn
->field_selector
;
4466 value
= exp
.X_add_number
;
4468 switch (field_selector
)
4474 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4476 if (value
& 0x00000400)
4478 value
= (value
& 0xfffff800) >> 11;
4481 /* Sign extend from bit 21. */
4483 if (value
& 0x00000400)
4484 value
|= 0xfffff800;
4489 /* Arithmetic shift right 11 bits. */
4491 value
= (value
& 0xfffff800) >> 11;
4494 /* Set bits 0-20 to zero. */
4496 value
= value
& 0x7ff;
4499 /* Add 0x800 and arithmetic shift right 11 bits. */
4502 value
= (value
& 0xfffff800) >> 11;
4505 /* Set bitgs 0-21 to one. */
4507 value
|= 0xfffff800;
4510 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
4512 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
4516 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
4521 BAD_CASE (field_selector
);
4527 /* Given an argument location specification return the associated
4528 argument location number. */
4531 pa_build_arg_reloc (type_name
)
4535 if (strncasecmp (type_name
, "no", 2) == 0)
4537 if (strncasecmp (type_name
, "gr", 2) == 0)
4539 else if (strncasecmp (type_name
, "fr", 2) == 0)
4541 else if (strncasecmp (type_name
, "fu", 2) == 0)
4544 as_bad (_("Invalid argument location: %s\n"), type_name
);
4549 /* Encode and return an argument relocation specification for
4550 the given register in the location specified by arg_reloc. */
4553 pa_align_arg_reloc (reg
, arg_reloc
)
4555 unsigned int arg_reloc
;
4557 unsigned int new_reloc
;
4559 new_reloc
= arg_reloc
;
4575 as_bad (_("Invalid argument description: %d"), reg
);
4581 /* Parse a PA nullification completer (,n). Return nonzero if the
4582 completer was found; return zero if no completer was found. */
4594 if (strncasecmp (*s
, "n", 1) == 0)
4598 as_bad (_("Invalid Nullification: (%c)"), **s
);
4607 /* Parse a non-negated compare/subtract completer returning the
4608 number (for encoding in instrutions) of the given completer.
4610 ISBRANCH specifies whether or not this is parsing a condition
4611 completer for a branch (vs a nullification completer for a
4612 computational instruction. */
4615 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4620 char *name
= *s
+ 1;
4629 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4635 if (strcmp (name
, "=") == 0)
4639 else if (strcmp (name
, "<") == 0)
4643 else if (strcmp (name
, "<=") == 0)
4647 else if (strcmp (name
, "<<") == 0)
4651 else if (strcmp (name
, "<<=") == 0)
4655 else if (strcasecmp (name
, "sv") == 0)
4659 else if (strcasecmp (name
, "od") == 0)
4663 /* If we have something like addb,n then there is no condition
4665 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4677 /* Reset pointers if this was really a ,n for a branch instruction. */
4685 /* Parse a negated compare/subtract completer returning the
4686 number (for encoding in instrutions) of the given completer.
4688 ISBRANCH specifies whether or not this is parsing a condition
4689 completer for a branch (vs a nullification completer for a
4690 computational instruction. */
4693 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4698 char *name
= *s
+ 1;
4707 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4713 if (strcasecmp (name
, "tr") == 0)
4717 else if (strcmp (name
, "<>") == 0)
4721 else if (strcmp (name
, ">=") == 0)
4725 else if (strcmp (name
, ">") == 0)
4729 else if (strcmp (name
, ">>=") == 0)
4733 else if (strcmp (name
, ">>") == 0)
4737 else if (strcasecmp (name
, "nsv") == 0)
4741 else if (strcasecmp (name
, "ev") == 0)
4745 /* If we have something like addb,n then there is no condition
4747 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4759 /* Reset pointers if this was really a ,n for a branch instruction. */
4768 /* Parse a non-negated addition completer returning the number
4769 (for encoding in instrutions) of the given completer.
4771 ISBRANCH specifies whether or not this is parsing a condition
4772 completer for a branch (vs a nullification completer for a
4773 computational instruction. */
4776 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4781 char *name
= *s
+ 1;
4789 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4793 if (strcmp (name
, "=") == 0)
4797 else if (strcmp (name
, "<") == 0)
4801 else if (strcmp (name
, "<=") == 0)
4805 else if (strcasecmp (name
, "nuv") == 0)
4809 else if (strcasecmp (name
, "znv") == 0)
4813 else if (strcasecmp (name
, "sv") == 0)
4817 else if (strcasecmp (name
, "od") == 0)
4821 /* If we have something like addb,n then there is no condition
4823 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4834 /* Reset pointers if this was really a ,n for a branch instruction. */
4835 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4841 /* Parse a negated addition completer returning the number
4842 (for encoding in instrutions) of the given completer.
4844 ISBRANCH specifies whether or not this is parsing a condition
4845 completer for a branch (vs a nullification completer for a
4846 computational instruction). */
4849 pa_parse_neg_add_cmpltr (s
, isbranch
)
4854 char *name
= *s
+ 1;
4862 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4866 if (strcasecmp (name
, "tr") == 0)
4870 else if (strcmp (name
, "<>") == 0)
4874 else if (strcmp (name
, ">=") == 0)
4878 else if (strcmp (name
, ">") == 0)
4882 else if (strcasecmp (name
, "uv") == 0)
4886 else if (strcasecmp (name
, "vnz") == 0)
4890 else if (strcasecmp (name
, "nsv") == 0)
4894 else if (strcasecmp (name
, "ev") == 0)
4898 /* If we have something like addb,n then there is no condition
4900 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4911 /* Reset pointers if this was really a ,n for a branch instruction. */
4912 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4919 /* Handle an alignment directive. Special so that we can update the
4920 alignment of the subspace if necessary. */
4924 /* We must have a valid space and subspace. */
4925 pa_check_current_space_and_subspace ();
4927 /* Let the generic gas code do most of the work. */
4928 s_align_bytes (bytes
);
4930 /* If bytes is a power of 2, then update the current subspace's
4931 alignment if necessary. */
4932 if (log2 (bytes
) != -1)
4933 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4937 /* Handle a .BLOCK type pseudo-op. */
4945 unsigned int temp_size
;
4949 /* We must have a valid space and subspace. */
4950 pa_check_current_space_and_subspace ();
4953 temp_size
= get_absolute_expression ();
4955 /* Always fill with zeros, that's what the HP assembler does. */
4958 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4959 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4960 memset (p
, 0, temp_size
);
4962 /* Convert 2 bytes at a time. */
4964 for (i
= 0; i
< temp_size
; i
+= 2)
4966 md_number_to_chars (p
+ i
,
4968 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4971 pa_undefine_label ();
4972 demand_empty_rest_of_line ();
4975 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4983 /* The BRTAB relocations are only availble in SOM (to denote
4984 the beginning and end of branch tables). */
4985 char *where
= frag_more (0);
4987 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4988 NULL
, (offsetT
) 0, NULL
,
4989 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4990 e_fsel
, 0, 0, NULL
);
4993 demand_empty_rest_of_line ();
4996 /* Handle a .begin_try and .end_try pseudo-op. */
5004 char *where
= frag_more (0);
5009 /* The TRY relocations are only availble in SOM (to denote
5010 the beginning and end of exception handling regions). */
5012 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5013 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
5014 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
5015 e_fsel
, 0, 0, NULL
);
5018 demand_empty_rest_of_line ();
5021 /* Handle a .CALL pseudo-op. This involves storing away information
5022 about where arguments are to be found so the linker can detect
5023 (and correct) argument location mismatches between caller and callee. */
5030 /* We must have a valid space and subspace. */
5031 pa_check_current_space_and_subspace ();
5034 pa_call_args (&last_call_desc
);
5035 demand_empty_rest_of_line ();
5038 /* Do the dirty work of building a call descriptor which describes
5039 where the caller placed arguments to a function call. */
5042 pa_call_args (call_desc
)
5043 struct call_desc
*call_desc
;
5046 unsigned int temp
, arg_reloc
;
5048 while (!is_end_of_statement ())
5050 name
= input_line_pointer
;
5051 c
= get_symbol_end ();
5052 /* Process a source argument. */
5053 if ((strncasecmp (name
, "argw", 4) == 0))
5055 temp
= atoi (name
+ 4);
5056 p
= input_line_pointer
;
5058 input_line_pointer
++;
5059 name
= input_line_pointer
;
5060 c
= get_symbol_end ();
5061 arg_reloc
= pa_build_arg_reloc (name
);
5062 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
5064 /* Process a return value. */
5065 else if ((strncasecmp (name
, "rtnval", 6) == 0))
5067 p
= input_line_pointer
;
5069 input_line_pointer
++;
5070 name
= input_line_pointer
;
5071 c
= get_symbol_end ();
5072 arg_reloc
= pa_build_arg_reloc (name
);
5073 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
5077 as_bad (_("Invalid .CALL argument: %s"), name
);
5079 p
= input_line_pointer
;
5081 if (!is_end_of_statement ())
5082 input_line_pointer
++;
5086 /* Return TRUE if FRAG1 and FRAG2 are the same. */
5089 is_same_frag (frag1
, frag2
)
5096 else if (frag2
== NULL
)
5098 else if (frag1
== frag2
)
5100 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
5101 return (is_same_frag (frag1
, frag2
->fr_next
));
5107 /* Build an entry in the UNWIND subspace from the given function
5108 attributes in CALL_INFO. This is not needed for SOM as using
5109 R_ENTRY and R_EXIT relocations allow the linker to handle building
5110 of the unwind spaces. */
5113 pa_build_unwind_subspace (call_info
)
5114 struct call_info
*call_info
;
5117 asection
*seg
, *save_seg
;
5119 subsegT subseg
, save_subseg
;
5123 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
5124 reloc
= R_PARISC_DIR32
;
5126 reloc
= R_PARISC_SEGREL32
;
5128 /* Get into the right seg/subseg. This may involve creating
5129 the seg the first time through. Make sure to have the
5130 old seg/subseg so that we can reset things when we are done. */
5131 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
5132 if (seg
== ASEC_NULL
)
5134 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
5135 bfd_set_section_flags (stdoutput
, seg
,
5136 SEC_READONLY
| SEC_HAS_CONTENTS
5137 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
5138 bfd_set_section_alignment (stdoutput
, seg
, 2);
5142 save_subseg
= now_subseg
;
5143 subseg_set (seg
, 0);
5146 /* Get some space to hold relocation information for the unwind
5149 md_number_to_chars (p
, 0, 4);
5151 /* Relocation info. for start offset of the function. */
5152 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
5153 call_info
->start_symbol
, (offsetT
) 0,
5154 (expressionS
*) NULL
, 0, reloc
,
5155 e_fsel
, 32, 0, NULL
);
5158 md_number_to_chars (p
, 0, 4);
5160 /* Relocation info. for end offset of the function.
5162 Because we allow reductions of 32bit relocations for ELF, this will be
5163 reduced to section_sym + offset which avoids putting the temporary
5164 symbol into the symbol table. It (should) end up giving the same
5165 value as call_info->start_symbol + function size once the linker is
5166 finished with its work. */
5168 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
5169 call_info
->end_symbol
, (offsetT
) 0,
5170 (expressionS
*) NULL
, 0, reloc
,
5171 e_fsel
, 32, 0, NULL
);
5174 unwind
= (char *) &call_info
->ci_unwind
;
5175 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
5179 FRAG_APPEND_1_CHAR (c
);
5183 /* Return back to the original segment/subsegment. */
5184 subseg_set (save_seg
, save_subseg
);
5188 /* Process a .CALLINFO pseudo-op. This information is used later
5189 to build unwind descriptors and maybe one day to support
5190 .ENTER and .LEAVE. */
5193 pa_callinfo (unused
)
5200 /* We must have a valid space and subspace. */
5201 pa_check_current_space_and_subspace ();
5204 /* .CALLINFO must appear within a procedure definition. */
5205 if (!within_procedure
)
5206 as_bad (_(".callinfo is not within a procedure definition"));
5208 /* Mark the fact that we found the .CALLINFO for the
5209 current procedure. */
5210 callinfo_found
= TRUE
;
5212 /* Iterate over the .CALLINFO arguments. */
5213 while (!is_end_of_statement ())
5215 name
= input_line_pointer
;
5216 c
= get_symbol_end ();
5217 /* Frame size specification. */
5218 if ((strncasecmp (name
, "frame", 5) == 0))
5220 p
= input_line_pointer
;
5222 input_line_pointer
++;
5223 temp
= get_absolute_expression ();
5224 if ((temp
& 0x3) != 0)
5226 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
5230 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5231 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
5234 /* Entry register (GR, GR and SR) specifications. */
5235 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
5237 p
= input_line_pointer
;
5239 input_line_pointer
++;
5240 temp
= get_absolute_expression ();
5241 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5242 even though %r19 is caller saved. I think this is a bug in
5243 the HP assembler, and we are not going to emulate it. */
5244 if (temp
< 3 || temp
> 18)
5245 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5246 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
5248 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
5250 p
= input_line_pointer
;
5252 input_line_pointer
++;
5253 temp
= get_absolute_expression ();
5254 /* Similarly the HP assembler takes 31 as the high bound even
5255 though %fr21 is the last callee saved floating point register. */
5256 if (temp
< 12 || temp
> 21)
5257 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5258 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
5260 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
5262 p
= input_line_pointer
;
5264 input_line_pointer
++;
5265 temp
= get_absolute_expression ();
5267 as_bad (_("Value for ENTRY_SR must be 3\n"));
5269 /* Note whether or not this function performs any calls. */
5270 else if ((strncasecmp (name
, "calls", 5) == 0) ||
5271 (strncasecmp (name
, "caller", 6) == 0))
5273 p
= input_line_pointer
;
5276 else if ((strncasecmp (name
, "no_calls", 8) == 0))
5278 p
= input_line_pointer
;
5281 /* Should RP be saved into the stack. */
5282 else if ((strncasecmp (name
, "save_rp", 7) == 0))
5284 p
= input_line_pointer
;
5286 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
5288 /* Likewise for SP. */
5289 else if ((strncasecmp (name
, "save_sp", 7) == 0))
5291 p
= input_line_pointer
;
5293 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
5295 /* Is this an unwindable procedure. If so mark it so
5296 in the unwind descriptor. */
5297 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
5299 p
= input_line_pointer
;
5301 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
5303 /* Is this an interrupt routine. If so mark it in the
5304 unwind descriptor. */
5305 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
5307 p
= input_line_pointer
;
5309 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
5311 /* Is this a millicode routine. "millicode" isn't in my
5312 assembler manual, but my copy is old. The HP assembler
5313 accepts it, and there's a place in the unwind descriptor
5314 to drop the information, so we'll accept it too. */
5315 else if ((strncasecmp (name
, "millicode", 9) == 0))
5317 p
= input_line_pointer
;
5319 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
5323 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
5324 *input_line_pointer
= c
;
5326 if (!is_end_of_statement ())
5327 input_line_pointer
++;
5330 demand_empty_rest_of_line ();
5333 /* Switch into the code subspace. */
5340 current_space
= is_defined_space ("$TEXT$");
5342 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
5345 pa_undefine_label ();
5348 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5349 the .comm pseudo-op has the following symtax:
5351 <label> .comm <length>
5353 where <label> is optional and is a symbol whose address will be the start of
5354 a block of memory <length> bytes long. <length> must be an absolute
5355 expression. <length> bytes will be allocated in the current space
5358 Also note the label may not even be on the same line as the .comm.
5360 This difference in syntax means the colon function will be called
5361 on the symbol before we arrive in pa_comm. colon will set a number
5362 of attributes of the symbol that need to be fixed here. In particular
5363 the value, section pointer, fragment pointer, flags, etc. What
5366 This also makes error detection all but impossible. */
5374 label_symbol_struct
*label_symbol
= pa_get_label ();
5377 symbol
= label_symbol
->lss_label
;
5382 size
= get_absolute_expression ();
5386 S_SET_VALUE (symbol
, size
);
5387 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5388 S_SET_EXTERNAL (symbol
);
5390 /* colon() has already set the frag to the current location in the
5391 current subspace; we need to reset the fragment to the zero address
5392 fragment. We also need to reset the segment pointer. */
5393 symbol_set_frag (symbol
, &zero_address_frag
);
5395 demand_empty_rest_of_line ();
5398 /* Process a .END pseudo-op. */
5404 demand_empty_rest_of_line ();
5407 /* Process a .ENTER pseudo-op. This is not supported. */
5413 /* We must have a valid space and subspace. */
5414 pa_check_current_space_and_subspace ();
5417 as_bad (_("The .ENTER pseudo-op is not supported"));
5418 demand_empty_rest_of_line ();
5421 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5428 /* We must have a valid space and subspace. */
5429 pa_check_current_space_and_subspace ();
5432 if (!within_procedure
)
5433 as_bad (_("Misplaced .entry. Ignored."));
5436 if (!callinfo_found
)
5437 as_bad (_("Missing .callinfo."));
5439 demand_empty_rest_of_line ();
5440 within_entry_exit
= TRUE
;
5443 /* SOM defers building of unwind descriptors until the link phase.
5444 The assembler is responsible for creating an R_ENTRY relocation
5445 to mark the beginning of a region and hold the unwind bits, and
5446 for creating an R_EXIT relocation to mark the end of the region.
5448 FIXME. ELF should be using the same conventions! The problem
5449 is an unwind requires too much relocation space. Hmmm. Maybe
5450 if we split the unwind bits up between the relocations which
5451 denote the entry and exit points. */
5452 if (last_call_info
->start_symbol
!= NULL
)
5454 char *where
= frag_more (0);
5456 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5457 NULL
, (offsetT
) 0, NULL
,
5458 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5459 (int *) &last_call_info
->ci_unwind
.descriptor
);
5464 /* Handle a .EQU pseudo-op. */
5470 label_symbol_struct
*label_symbol
= pa_get_label ();
5475 symbol
= label_symbol
->lss_label
;
5477 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
5479 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
5480 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
5485 as_bad (_(".REG must use a label"));
5487 as_bad (_(".EQU must use a label"));
5490 pa_undefine_label ();
5491 demand_empty_rest_of_line ();
5494 /* Helper function. Does processing for the end of a function. This
5495 usually involves creating some relocations or building special
5496 symbols to mark the end of the function. */
5503 where
= frag_more (0);
5506 /* Mark the end of the function, stuff away the location of the frag
5507 for the end of the function, and finally call pa_build_unwind_subspace
5508 to add an entry in the unwind table. */
5509 hppa_elf_mark_end_of_function ();
5510 pa_build_unwind_subspace (last_call_info
);
5512 /* SOM defers building of unwind descriptors until the link phase.
5513 The assembler is responsible for creating an R_ENTRY relocation
5514 to mark the beginning of a region and hold the unwind bits, and
5515 for creating an R_EXIT relocation to mark the end of the region.
5517 FIXME. ELF should be using the same conventions! The problem
5518 is an unwind requires too much relocation space. Hmmm. Maybe
5519 if we split the unwind bits up between the relocations which
5520 denote the entry and exit points. */
5521 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5523 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
5524 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
5528 /* Process a .EXIT pseudo-op. */
5535 /* We must have a valid space and subspace. */
5536 pa_check_current_space_and_subspace ();
5539 if (!within_procedure
)
5540 as_bad (_(".EXIT must appear within a procedure"));
5543 if (!callinfo_found
)
5544 as_bad (_("Missing .callinfo"));
5547 if (!within_entry_exit
)
5548 as_bad (_("No .ENTRY for this .EXIT"));
5551 within_entry_exit
= FALSE
;
5556 demand_empty_rest_of_line ();
5559 /* Process a .EXPORT directive. This makes functions external
5560 and provides information such as argument relocation entries
5570 name
= input_line_pointer
;
5571 c
= get_symbol_end ();
5572 /* Make sure the given symbol exists. */
5573 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5575 as_bad (_("Cannot define export symbol: %s\n"), name
);
5576 p
= input_line_pointer
;
5578 input_line_pointer
++;
5582 /* OK. Set the external bits and process argument relocations. */
5583 S_SET_EXTERNAL (symbol
);
5584 p
= input_line_pointer
;
5586 if (!is_end_of_statement ())
5588 input_line_pointer
++;
5589 pa_type_args (symbol
, 1);
5593 demand_empty_rest_of_line ();
5596 /* Helper function to process arguments to a .EXPORT pseudo-op. */
5599 pa_type_args (symbolP
, is_export
)
5604 unsigned int temp
, arg_reloc
;
5605 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5606 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5608 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5611 input_line_pointer
+= 8;
5612 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5613 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5614 type
= SYMBOL_TYPE_ABSOLUTE
;
5616 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5618 input_line_pointer
+= 4;
5619 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5620 instead one should be IMPORTing/EXPORTing ENTRY types.
5622 Complain if one tries to EXPORT a CODE type since that's never
5623 done. Both GCC and HP C still try to IMPORT CODE types, so
5624 silently fix them to be ENTRY types. */
5625 if (S_IS_FUNCTION (symbolP
))
5628 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5629 S_GET_NAME (symbolP
));
5631 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5632 type
= SYMBOL_TYPE_ENTRY
;
5636 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5637 type
= SYMBOL_TYPE_CODE
;
5640 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5642 input_line_pointer
+= 4;
5643 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5644 type
= SYMBOL_TYPE_DATA
;
5646 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5648 input_line_pointer
+= 5;
5649 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5650 type
= SYMBOL_TYPE_ENTRY
;
5652 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5654 input_line_pointer
+= 9;
5655 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5656 type
= SYMBOL_TYPE_MILLICODE
;
5658 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5660 input_line_pointer
+= 6;
5661 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5662 type
= SYMBOL_TYPE_PLABEL
;
5664 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5666 input_line_pointer
+= 8;
5667 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5668 type
= SYMBOL_TYPE_PRI_PROG
;
5670 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5672 input_line_pointer
+= 8;
5673 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5674 type
= SYMBOL_TYPE_SEC_PROG
;
5677 /* SOM requires much more information about symbol types
5678 than BFD understands. This is how we get this information
5679 to the SOM BFD backend. */
5680 #ifdef obj_set_symbol_type
5681 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5684 /* Now that the type of the exported symbol has been handled,
5685 handle any argument relocation information. */
5686 while (!is_end_of_statement ())
5688 if (*input_line_pointer
== ',')
5689 input_line_pointer
++;
5690 name
= input_line_pointer
;
5691 c
= get_symbol_end ();
5692 /* Argument sources. */
5693 if ((strncasecmp (name
, "argw", 4) == 0))
5695 p
= input_line_pointer
;
5697 input_line_pointer
++;
5698 temp
= atoi (name
+ 4);
5699 name
= input_line_pointer
;
5700 c
= get_symbol_end ();
5701 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5703 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5705 *input_line_pointer
= c
;
5707 /* The return value. */
5708 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5710 p
= input_line_pointer
;
5712 input_line_pointer
++;
5713 name
= input_line_pointer
;
5714 c
= get_symbol_end ();
5715 arg_reloc
= pa_build_arg_reloc (name
);
5717 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5719 *input_line_pointer
= c
;
5721 /* Privelege level. */
5722 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5724 p
= input_line_pointer
;
5726 input_line_pointer
++;
5727 temp
= atoi (input_line_pointer
);
5729 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5731 c
= get_symbol_end ();
5732 *input_line_pointer
= c
;
5736 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5737 p
= input_line_pointer
;
5740 if (!is_end_of_statement ())
5741 input_line_pointer
++;
5745 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5746 assembly file must either be defined in the assembly file, or
5747 explicitly IMPORTED from another. */
5756 name
= input_line_pointer
;
5757 c
= get_symbol_end ();
5759 symbol
= symbol_find (name
);
5760 /* Ugh. We might be importing a symbol defined earlier in the file,
5761 in which case all the code below will really screw things up
5762 (set the wrong segment, symbol flags & type, etc). */
5763 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5765 symbol
= symbol_find_or_make (name
);
5766 p
= input_line_pointer
;
5769 if (!is_end_of_statement ())
5771 input_line_pointer
++;
5772 pa_type_args (symbol
, 0);
5776 /* Sigh. To be compatable with the HP assembler and to help
5777 poorly written assembly code, we assign a type based on
5778 the the current segment. Note only BSF_FUNCTION really
5779 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5780 if (now_seg
== text_section
)
5781 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5783 /* If the section is undefined, then the symbol is undefined
5784 Since this is an import, leave the section undefined. */
5785 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5790 /* The symbol was already defined. Just eat everything up to
5791 the end of the current statement. */
5792 while (!is_end_of_statement ())
5793 input_line_pointer
++;
5796 demand_empty_rest_of_line ();
5799 /* Handle a .LABEL pseudo-op. */
5807 name
= input_line_pointer
;
5808 c
= get_symbol_end ();
5810 if (strlen (name
) > 0)
5813 p
= input_line_pointer
;
5818 as_warn (_("Missing label name on .LABEL"));
5821 if (!is_end_of_statement ())
5823 as_warn (_("extra .LABEL arguments ignored."));
5824 ignore_rest_of_line ();
5826 demand_empty_rest_of_line ();
5829 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5836 /* We must have a valid space and subspace. */
5837 pa_check_current_space_and_subspace ();
5840 as_bad (_("The .LEAVE pseudo-op is not supported"));
5841 demand_empty_rest_of_line ();
5844 /* Handle a .LEVEL pseudo-op. */
5852 level
= input_line_pointer
;
5853 if (strncmp (level
, "1.0", 3) == 0)
5855 input_line_pointer
+= 3;
5856 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5857 as_warn (_("could not set architecture and machine"));
5859 else if (strncmp (level
, "1.1", 3) == 0)
5861 input_line_pointer
+= 3;
5862 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5863 as_warn (_("could not set architecture and machine"));
5865 else if (strncmp (level
, "2.0w", 4) == 0)
5867 input_line_pointer
+= 4;
5868 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5869 as_warn (_("could not set architecture and machine"));
5871 else if (strncmp (level
, "2.0", 3) == 0)
5873 input_line_pointer
+= 3;
5874 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5875 as_warn (_("could not set architecture and machine"));
5879 as_bad (_("Unrecognized .LEVEL argument\n"));
5880 ignore_rest_of_line ();
5882 demand_empty_rest_of_line ();
5885 /* Handle a .ORIGIN pseudo-op. */
5892 /* We must have a valid space and subspace. */
5893 pa_check_current_space_and_subspace ();
5897 pa_undefine_label ();
5900 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5901 is for static functions. FIXME. Should share more code with .EXPORT. */
5910 name
= input_line_pointer
;
5911 c
= get_symbol_end ();
5913 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5915 as_bad (_("Cannot define static symbol: %s\n"), name
);
5916 p
= input_line_pointer
;
5918 input_line_pointer
++;
5922 S_CLEAR_EXTERNAL (symbol
);
5923 p
= input_line_pointer
;
5925 if (!is_end_of_statement ())
5927 input_line_pointer
++;
5928 pa_type_args (symbol
, 0);
5932 demand_empty_rest_of_line ();
5935 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5936 of a procedure from a syntatical point of view. */
5942 struct call_info
*call_info
;
5945 /* We must have a valid space and subspace. */
5946 pa_check_current_space_and_subspace ();
5949 if (within_procedure
)
5950 as_fatal (_("Nested procedures"));
5952 /* Reset global variables for new procedure. */
5953 callinfo_found
= FALSE
;
5954 within_procedure
= TRUE
;
5956 /* Create another call_info structure. */
5957 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5960 as_fatal (_("Cannot allocate unwind descriptor\n"));
5962 memset (call_info
, 0, sizeof (struct call_info
));
5964 call_info
->ci_next
= NULL
;
5966 if (call_info_root
== NULL
)
5968 call_info_root
= call_info
;
5969 last_call_info
= call_info
;
5973 last_call_info
->ci_next
= call_info
;
5974 last_call_info
= call_info
;
5977 /* set up defaults on call_info structure */
5979 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5980 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5981 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5983 /* If we got a .PROC pseudo-op, we know that the function is defined
5984 locally. Make sure it gets into the symbol table. */
5986 label_symbol_struct
*label_symbol
= pa_get_label ();
5990 if (label_symbol
->lss_label
)
5992 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5993 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5996 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5999 last_call_info
->start_symbol
= NULL
;
6002 demand_empty_rest_of_line ();
6005 /* Process the syntatical end of a procedure. Make sure all the
6006 appropriate pseudo-ops were found within the procedure. */
6014 /* We must have a valid space and subspace. */
6015 pa_check_current_space_and_subspace ();
6018 /* If we are within a procedure definition, make sure we've
6019 defined a label for the procedure; handle case where the
6020 label was defined after the .PROC directive.
6022 Note there's not need to diddle with the segment or fragment
6023 for the label symbol in this case. We have already switched
6024 into the new $CODE$ subspace at this point. */
6025 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
6027 label_symbol_struct
*label_symbol
= pa_get_label ();
6031 if (label_symbol
->lss_label
)
6033 last_call_info
->start_symbol
= label_symbol
->lss_label
;
6034 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
6037 /* Also handle allocation of a fixup to hold the unwind
6038 information when the label appears after the proc/procend. */
6039 if (within_entry_exit
)
6041 char *where
= frag_more (0);
6043 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
6044 NULL
, (offsetT
) 0, NULL
,
6045 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
6046 (int *) &last_call_info
->ci_unwind
.descriptor
);
6051 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6054 as_bad (_("Missing function name for .PROC"));
6057 if (!within_procedure
)
6058 as_bad (_("misplaced .procend"));
6060 if (!callinfo_found
)
6061 as_bad (_("Missing .callinfo for this procedure"));
6063 if (within_entry_exit
)
6064 as_bad (_("Missing .EXIT for a .ENTRY"));
6067 /* ELF needs to mark the end of each function so that it can compute
6068 the size of the function (apparently its needed in the symbol table). */
6069 hppa_elf_mark_end_of_function ();
6072 within_procedure
= FALSE
;
6073 demand_empty_rest_of_line ();
6074 pa_undefine_label ();
6077 /* If VALUE is an exact power of two between zero and 2^31, then
6078 return log2 (VALUE). Else return -1. */
6086 while ((1 << shift
) != value
&& shift
< 32)
6097 /* Check to make sure we have a valid space and subspace. */
6100 pa_check_current_space_and_subspace ()
6102 if (current_space
== NULL
)
6103 as_fatal (_("Not in a space.\n"));
6105 if (current_subspace
== NULL
)
6106 as_fatal (_("Not in a subspace.\n"));
6109 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
6110 then create a new space entry to hold the information specified
6111 by the parameters to the .SPACE directive. */
6113 static sd_chain_struct
*
6114 pa_parse_space_stmt (space_name
, create_flag
)
6118 char *name
, *ptemp
, c
;
6119 char loadable
, defined
, private, sort
;
6121 asection
*seg
= NULL
;
6122 sd_chain_struct
*space
;
6124 /* load default values */
6130 if (strcmp (space_name
, "$TEXT$") == 0)
6132 seg
= pa_def_spaces
[0].segment
;
6133 defined
= pa_def_spaces
[0].defined
;
6134 private = pa_def_spaces
[0].private;
6135 sort
= pa_def_spaces
[0].sort
;
6136 spnum
= pa_def_spaces
[0].spnum
;
6138 else if (strcmp (space_name
, "$PRIVATE$") == 0)
6140 seg
= pa_def_spaces
[1].segment
;
6141 defined
= pa_def_spaces
[1].defined
;
6142 private = pa_def_spaces
[1].private;
6143 sort
= pa_def_spaces
[1].sort
;
6144 spnum
= pa_def_spaces
[1].spnum
;
6147 if (!is_end_of_statement ())
6149 print_errors
= FALSE
;
6150 ptemp
= input_line_pointer
+ 1;
6151 /* First see if the space was specified as a number rather than
6152 as a name. According to the PA assembly manual the rest of
6153 the line should be ignored. */
6154 temp
= pa_parse_number (&ptemp
, 0);
6158 input_line_pointer
= ptemp
;
6162 while (!is_end_of_statement ())
6164 input_line_pointer
++;
6165 name
= input_line_pointer
;
6166 c
= get_symbol_end ();
6167 if ((strncasecmp (name
, "spnum", 5) == 0))
6169 *input_line_pointer
= c
;
6170 input_line_pointer
++;
6171 spnum
= get_absolute_expression ();
6173 else if ((strncasecmp (name
, "sort", 4) == 0))
6175 *input_line_pointer
= c
;
6176 input_line_pointer
++;
6177 sort
= get_absolute_expression ();
6179 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6181 *input_line_pointer
= c
;
6184 else if ((strncasecmp (name
, "notdefined", 10) == 0))
6186 *input_line_pointer
= c
;
6189 else if ((strncasecmp (name
, "private", 7) == 0))
6191 *input_line_pointer
= c
;
6196 as_bad (_("Invalid .SPACE argument"));
6197 *input_line_pointer
= c
;
6198 if (!is_end_of_statement ())
6199 input_line_pointer
++;
6203 print_errors
= TRUE
;
6206 if (create_flag
&& seg
== NULL
)
6207 seg
= subseg_new (space_name
, 0);
6209 /* If create_flag is nonzero, then create the new space with
6210 the attributes computed above. Else set the values in
6211 an already existing space -- this can only happen for
6212 the first occurence of a built-in space. */
6214 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
6215 private, sort
, seg
, 1);
6218 space
= is_defined_space (space_name
);
6219 SPACE_SPNUM (space
) = spnum
;
6220 SPACE_DEFINED (space
) = defined
& 1;
6221 SPACE_USER_DEFINED (space
) = 1;
6224 #ifdef obj_set_section_attributes
6225 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6231 /* Handle a .SPACE pseudo-op; this switches the current space to the
6232 given space, creating the new space if necessary. */
6238 char *name
, c
, *space_name
, *save_s
;
6240 sd_chain_struct
*sd_chain
;
6242 if (within_procedure
)
6244 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6245 ignore_rest_of_line ();
6249 /* Check for some of the predefined spaces. FIXME: most of the code
6250 below is repeated several times, can we extract the common parts
6251 and place them into a subroutine or something similar? */
6252 /* FIXME Is this (and the next IF stmt) really right?
6253 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6254 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
6256 input_line_pointer
+= 6;
6257 sd_chain
= is_defined_space ("$TEXT$");
6258 if (sd_chain
== NULL
)
6259 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
6260 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6261 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
6263 current_space
= sd_chain
;
6264 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
6266 = pa_subsegment_to_subspace (text_section
,
6267 sd_chain
->sd_last_subseg
);
6268 demand_empty_rest_of_line ();
6271 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
6273 input_line_pointer
+= 9;
6274 sd_chain
= is_defined_space ("$PRIVATE$");
6275 if (sd_chain
== NULL
)
6276 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
6277 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6278 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
6280 current_space
= sd_chain
;
6281 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
6283 = pa_subsegment_to_subspace (data_section
,
6284 sd_chain
->sd_last_subseg
);
6285 demand_empty_rest_of_line ();
6288 if (!strncasecmp (input_line_pointer
,
6289 GDB_DEBUG_SPACE_NAME
,
6290 strlen (GDB_DEBUG_SPACE_NAME
)))
6292 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
6293 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
6294 if (sd_chain
== NULL
)
6295 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
6296 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
6297 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
6299 current_space
= sd_chain
;
6302 asection
*gdb_section
6303 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
6305 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
6307 = pa_subsegment_to_subspace (gdb_section
,
6308 sd_chain
->sd_last_subseg
);
6310 demand_empty_rest_of_line ();
6314 /* It could be a space specified by number. */
6316 save_s
= input_line_pointer
;
6317 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
6319 if ((sd_chain
= pa_find_space_by_number (temp
)))
6321 current_space
= sd_chain
;
6323 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6325 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6326 sd_chain
->sd_last_subseg
);
6327 demand_empty_rest_of_line ();
6332 /* Not a number, attempt to create a new space. */
6334 input_line_pointer
= save_s
;
6335 name
= input_line_pointer
;
6336 c
= get_symbol_end ();
6337 space_name
= xmalloc (strlen (name
) + 1);
6338 strcpy (space_name
, name
);
6339 *input_line_pointer
= c
;
6341 sd_chain
= pa_parse_space_stmt (space_name
, 1);
6342 current_space
= sd_chain
;
6344 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
6345 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
6346 sd_chain
->sd_last_subseg
);
6347 demand_empty_rest_of_line ();
6351 /* Switch to a new space. (I think). FIXME. */
6360 sd_chain_struct
*space
;
6362 name
= input_line_pointer
;
6363 c
= get_symbol_end ();
6364 space
= is_defined_space (name
);
6368 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
6371 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
6373 *input_line_pointer
= c
;
6374 demand_empty_rest_of_line ();
6377 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6378 given subspace, creating the new subspace if necessary.
6380 FIXME. Should mirror pa_space more closely, in particular how
6381 they're broken up into subroutines. */
6384 pa_subspace (create_new
)
6387 char *name
, *ss_name
, c
;
6388 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
6389 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
6390 sd_chain_struct
*space
;
6391 ssd_chain_struct
*ssd
;
6394 if (current_space
== NULL
)
6395 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6397 if (within_procedure
)
6399 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6400 ignore_rest_of_line ();
6404 name
= input_line_pointer
;
6405 c
= get_symbol_end ();
6406 ss_name
= xmalloc (strlen (name
) + 1);
6407 strcpy (ss_name
, name
);
6408 *input_line_pointer
= c
;
6410 /* Load default values. */
6422 space
= current_space
;
6426 ssd
= is_defined_subspace (ss_name
);
6427 /* Allow user to override the builtin attributes of subspaces. But
6428 only allow the attributes to be changed once! */
6429 if (ssd
&& SUBSPACE_DEFINED (ssd
))
6431 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
6432 current_subspace
= ssd
;
6433 if (!is_end_of_statement ())
6434 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6435 demand_empty_rest_of_line ();
6440 /* A new subspace. Load default values if it matches one of
6441 the builtin subspaces. */
6443 while (pa_def_subspaces
[i
].name
)
6445 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
6447 loadable
= pa_def_subspaces
[i
].loadable
;
6448 common
= pa_def_subspaces
[i
].common
;
6449 dup_common
= pa_def_subspaces
[i
].dup_common
;
6450 code_only
= pa_def_subspaces
[i
].code_only
;
6451 zero
= pa_def_subspaces
[i
].zero
;
6452 space_index
= pa_def_subspaces
[i
].space_index
;
6453 alignment
= pa_def_subspaces
[i
].alignment
;
6454 quadrant
= pa_def_subspaces
[i
].quadrant
;
6455 access
= pa_def_subspaces
[i
].access
;
6456 sort
= pa_def_subspaces
[i
].sort
;
6463 /* We should be working with a new subspace now. Fill in
6464 any information as specified by the user. */
6465 if (!is_end_of_statement ())
6467 input_line_pointer
++;
6468 while (!is_end_of_statement ())
6470 name
= input_line_pointer
;
6471 c
= get_symbol_end ();
6472 if ((strncasecmp (name
, "quad", 4) == 0))
6474 *input_line_pointer
= c
;
6475 input_line_pointer
++;
6476 quadrant
= get_absolute_expression ();
6478 else if ((strncasecmp (name
, "align", 5) == 0))
6480 *input_line_pointer
= c
;
6481 input_line_pointer
++;
6482 alignment
= get_absolute_expression ();
6483 if (log2 (alignment
) == -1)
6485 as_bad (_("Alignment must be a power of 2"));
6489 else if ((strncasecmp (name
, "access", 6) == 0))
6491 *input_line_pointer
= c
;
6492 input_line_pointer
++;
6493 access
= get_absolute_expression ();
6495 else if ((strncasecmp (name
, "sort", 4) == 0))
6497 *input_line_pointer
= c
;
6498 input_line_pointer
++;
6499 sort
= get_absolute_expression ();
6501 else if ((strncasecmp (name
, "code_only", 9) == 0))
6503 *input_line_pointer
= c
;
6506 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6508 *input_line_pointer
= c
;
6511 else if ((strncasecmp (name
, "common", 6) == 0))
6513 *input_line_pointer
= c
;
6516 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
6518 *input_line_pointer
= c
;
6521 else if ((strncasecmp (name
, "zero", 4) == 0))
6523 *input_line_pointer
= c
;
6526 else if ((strncasecmp (name
, "first", 5) == 0))
6527 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
6529 as_bad (_("Invalid .SUBSPACE argument"));
6530 if (!is_end_of_statement ())
6531 input_line_pointer
++;
6535 /* Compute a reasonable set of BFD flags based on the information
6536 in the .subspace directive. */
6537 applicable
= bfd_applicable_section_flags (stdoutput
);
6540 flags
|= (SEC_ALLOC
| SEC_LOAD
);
6543 if (common
|| dup_common
)
6544 flags
|= SEC_IS_COMMON
;
6546 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
6548 /* This is a zero-filled subspace (eg BSS). */
6550 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
6552 applicable
&= flags
;
6554 /* If this is an existing subspace, then we want to use the
6555 segment already associated with the subspace.
6557 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6558 lots of sections. It might be a problem in the PA ELF
6559 code, I do not know yet. For now avoid creating anything
6560 but the "standard" sections for ELF. */
6562 section
= subseg_force_new (ss_name
, 0);
6564 section
= ssd
->ssd_seg
;
6566 section
= subseg_new (ss_name
, 0);
6569 seg_info (section
)->bss
= 1;
6571 /* Now set the flags. */
6572 bfd_set_section_flags (stdoutput
, section
, applicable
);
6574 /* Record any alignment request for this section. */
6575 record_alignment (section
, log2 (alignment
));
6577 /* Set the starting offset for this section. */
6578 bfd_set_section_vma (stdoutput
, section
,
6579 pa_subspace_start (space
, quadrant
));
6581 /* Now that all the flags are set, update an existing subspace,
6582 or create a new one. */
6585 current_subspace
= update_subspace (space
, ss_name
, loadable
,
6586 code_only
, common
, dup_common
,
6587 sort
, zero
, access
, space_index
,
6588 alignment
, quadrant
,
6591 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
6593 dup_common
, zero
, sort
,
6594 access
, space_index
,
6595 alignment
, quadrant
, section
);
6597 demand_empty_rest_of_line ();
6598 current_subspace
->ssd_seg
= section
;
6599 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6601 SUBSPACE_DEFINED (current_subspace
) = 1;
6605 /* Create default space and subspace dictionaries. */
6612 space_dict_root
= NULL
;
6613 space_dict_last
= NULL
;
6616 while (pa_def_spaces
[i
].name
)
6620 /* Pick the right name to use for the new section. */
6621 name
= pa_def_spaces
[i
].name
;
6623 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6624 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6625 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6626 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6627 pa_def_spaces
[i
].segment
, 0);
6632 while (pa_def_subspaces
[i
].name
)
6635 int applicable
, subsegment
;
6636 asection
*segment
= NULL
;
6637 sd_chain_struct
*space
;
6639 /* Pick the right name for the new section and pick the right
6640 subsegment number. */
6641 name
= pa_def_subspaces
[i
].name
;
6644 /* Create the new section. */
6645 segment
= subseg_new (name
, subsegment
);
6648 /* For SOM we want to replace the standard .text, .data, and .bss
6649 sections with our own. We also want to set BFD flags for
6650 all the built-in subspaces. */
6651 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6653 text_section
= segment
;
6654 applicable
= bfd_applicable_section_flags (stdoutput
);
6655 bfd_set_section_flags (stdoutput
, segment
,
6656 applicable
& (SEC_ALLOC
| SEC_LOAD
6657 | SEC_RELOC
| SEC_CODE
6659 | SEC_HAS_CONTENTS
));
6661 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6663 data_section
= segment
;
6664 applicable
= bfd_applicable_section_flags (stdoutput
);
6665 bfd_set_section_flags (stdoutput
, segment
,
6666 applicable
& (SEC_ALLOC
| SEC_LOAD
6668 | SEC_HAS_CONTENTS
));
6672 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6674 bss_section
= segment
;
6675 applicable
= bfd_applicable_section_flags (stdoutput
);
6676 bfd_set_section_flags (stdoutput
, segment
,
6677 applicable
& SEC_ALLOC
);
6679 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6681 applicable
= bfd_applicable_section_flags (stdoutput
);
6682 bfd_set_section_flags (stdoutput
, segment
,
6683 applicable
& (SEC_ALLOC
| SEC_LOAD
6686 | SEC_HAS_CONTENTS
));
6688 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6690 applicable
= bfd_applicable_section_flags (stdoutput
);
6691 bfd_set_section_flags (stdoutput
, segment
,
6692 applicable
& (SEC_ALLOC
| SEC_LOAD
6695 | SEC_HAS_CONTENTS
));
6697 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6699 applicable
= bfd_applicable_section_flags (stdoutput
);
6700 bfd_set_section_flags (stdoutput
, segment
,
6701 applicable
& (SEC_ALLOC
| SEC_LOAD
6704 | SEC_HAS_CONTENTS
));
6707 /* Find the space associated with this subspace. */
6708 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6709 def_space_index
].segment
);
6712 as_fatal (_("Internal error: Unable to find containing space for %s."),
6713 pa_def_subspaces
[i
].name
);
6716 create_new_subspace (space
, name
,
6717 pa_def_subspaces
[i
].loadable
,
6718 pa_def_subspaces
[i
].code_only
,
6719 pa_def_subspaces
[i
].common
,
6720 pa_def_subspaces
[i
].dup_common
,
6721 pa_def_subspaces
[i
].zero
,
6722 pa_def_subspaces
[i
].sort
,
6723 pa_def_subspaces
[i
].access
,
6724 pa_def_subspaces
[i
].space_index
,
6725 pa_def_subspaces
[i
].alignment
,
6726 pa_def_subspaces
[i
].quadrant
,
6734 /* Create a new space NAME, with the appropriate flags as defined
6735 by the given parameters. */
6737 static sd_chain_struct
*
6738 create_new_space (name
, spnum
, loadable
, defined
, private,
6739 sort
, seg
, user_defined
)
6749 sd_chain_struct
*chain_entry
;
6751 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6753 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6756 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6757 strcpy (SPACE_NAME (chain_entry
), name
);
6758 SPACE_DEFINED (chain_entry
) = defined
;
6759 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6760 SPACE_SPNUM (chain_entry
) = spnum
;
6762 chain_entry
->sd_seg
= seg
;
6763 chain_entry
->sd_last_subseg
= -1;
6764 chain_entry
->sd_subspaces
= NULL
;
6765 chain_entry
->sd_next
= NULL
;
6767 /* Find spot for the new space based on its sort key. */
6768 if (!space_dict_last
)
6769 space_dict_last
= chain_entry
;
6771 if (space_dict_root
== NULL
)
6772 space_dict_root
= chain_entry
;
6775 sd_chain_struct
*chain_pointer
;
6776 sd_chain_struct
*prev_chain_pointer
;
6778 chain_pointer
= space_dict_root
;
6779 prev_chain_pointer
= NULL
;
6781 while (chain_pointer
)
6783 prev_chain_pointer
= chain_pointer
;
6784 chain_pointer
= chain_pointer
->sd_next
;
6787 /* At this point we've found the correct place to add the new
6788 entry. So add it and update the linked lists as appropriate. */
6789 if (prev_chain_pointer
)
6791 chain_entry
->sd_next
= chain_pointer
;
6792 prev_chain_pointer
->sd_next
= chain_entry
;
6796 space_dict_root
= chain_entry
;
6797 chain_entry
->sd_next
= chain_pointer
;
6800 if (chain_entry
->sd_next
== NULL
)
6801 space_dict_last
= chain_entry
;
6804 /* This is here to catch predefined spaces which do not get
6805 modified by the user's input. Another call is found at
6806 the bottom of pa_parse_space_stmt to handle cases where
6807 the user modifies a predefined space. */
6808 #ifdef obj_set_section_attributes
6809 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6815 /* Create a new subspace NAME, with the appropriate flags as defined
6816 by the given parameters.
6818 Add the new subspace to the subspace dictionary chain in numerical
6819 order as defined by the SORT entries. */
6821 static ssd_chain_struct
*
6822 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6823 dup_common
, is_zero
, sort
, access
, space_index
,
6824 alignment
, quadrant
, seg
)
6825 sd_chain_struct
*space
;
6827 int loadable
, code_only
, common
, dup_common
, is_zero
;
6835 ssd_chain_struct
*chain_entry
;
6837 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6839 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6841 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6842 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6844 /* Initialize subspace_defined. When we hit a .subspace directive
6845 we'll set it to 1 which "locks-in" the subspace attributes. */
6846 SUBSPACE_DEFINED (chain_entry
) = 0;
6848 chain_entry
->ssd_subseg
= 0;
6849 chain_entry
->ssd_seg
= seg
;
6850 chain_entry
->ssd_next
= NULL
;
6852 /* Find spot for the new subspace based on its sort key. */
6853 if (space
->sd_subspaces
== NULL
)
6854 space
->sd_subspaces
= chain_entry
;
6857 ssd_chain_struct
*chain_pointer
;
6858 ssd_chain_struct
*prev_chain_pointer
;
6860 chain_pointer
= space
->sd_subspaces
;
6861 prev_chain_pointer
= NULL
;
6863 while (chain_pointer
)
6865 prev_chain_pointer
= chain_pointer
;
6866 chain_pointer
= chain_pointer
->ssd_next
;
6869 /* Now we have somewhere to put the new entry. Insert it and update
6871 if (prev_chain_pointer
)
6873 chain_entry
->ssd_next
= chain_pointer
;
6874 prev_chain_pointer
->ssd_next
= chain_entry
;
6878 space
->sd_subspaces
= chain_entry
;
6879 chain_entry
->ssd_next
= chain_pointer
;
6883 #ifdef obj_set_subsection_attributes
6884 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6891 /* Update the information for the given subspace based upon the
6892 various arguments. Return the modified subspace chain entry. */
6894 static ssd_chain_struct
*
6895 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6896 zero
, access
, space_index
, alignment
, quadrant
, section
)
6897 sd_chain_struct
*space
;
6911 ssd_chain_struct
*chain_entry
;
6913 chain_entry
= is_defined_subspace (name
);
6915 #ifdef obj_set_subsection_attributes
6916 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6923 /* Return the space chain entry for the space with the name NAME or
6924 NULL if no such space exists. */
6926 static sd_chain_struct
*
6927 is_defined_space (name
)
6930 sd_chain_struct
*chain_pointer
;
6932 for (chain_pointer
= space_dict_root
;
6934 chain_pointer
= chain_pointer
->sd_next
)
6936 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6937 return chain_pointer
;
6940 /* No mapping from segment to space was found. Return NULL. */
6944 /* Find and return the space associated with the given seg. If no mapping
6945 from the given seg to a space is found, then return NULL.
6947 Unlike subspaces, the number of spaces is not expected to grow much,
6948 so a linear exhaustive search is OK here. */
6950 static sd_chain_struct
*
6951 pa_segment_to_space (seg
)
6954 sd_chain_struct
*space_chain
;
6956 /* Walk through each space looking for the correct mapping. */
6957 for (space_chain
= space_dict_root
;
6959 space_chain
= space_chain
->sd_next
)
6961 if (space_chain
->sd_seg
== seg
)
6965 /* Mapping was not found. Return NULL. */
6969 /* Return the space chain entry for the subspace with the name NAME or
6970 NULL if no such subspace exists.
6972 Uses a linear search through all the spaces and subspaces, this may
6973 not be appropriate if we ever being placing each function in its
6976 static ssd_chain_struct
*
6977 is_defined_subspace (name
)
6980 sd_chain_struct
*space_chain
;
6981 ssd_chain_struct
*subspace_chain
;
6983 /* Walk through each space. */
6984 for (space_chain
= space_dict_root
;
6986 space_chain
= space_chain
->sd_next
)
6988 /* Walk through each subspace looking for a name which matches. */
6989 for (subspace_chain
= space_chain
->sd_subspaces
;
6991 subspace_chain
= subspace_chain
->ssd_next
)
6992 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6993 return subspace_chain
;
6996 /* Subspace wasn't found. Return NULL. */
7000 /* Find and return the subspace associated with the given seg. If no
7001 mapping from the given seg to a subspace is found, then return NULL.
7003 If we ever put each procedure/function within its own subspace
7004 (to make life easier on the compiler and linker), then this will have
7005 to become more efficient. */
7007 static ssd_chain_struct
*
7008 pa_subsegment_to_subspace (seg
, subseg
)
7012 sd_chain_struct
*space_chain
;
7013 ssd_chain_struct
*subspace_chain
;
7015 /* Walk through each space. */
7016 for (space_chain
= space_dict_root
;
7018 space_chain
= space_chain
->sd_next
)
7020 if (space_chain
->sd_seg
== seg
)
7022 /* Walk through each subspace within each space looking for
7023 the correct mapping. */
7024 for (subspace_chain
= space_chain
->sd_subspaces
;
7026 subspace_chain
= subspace_chain
->ssd_next
)
7027 if (subspace_chain
->ssd_subseg
== (int) subseg
)
7028 return subspace_chain
;
7032 /* No mapping from subsegment to subspace found. Return NULL. */
7036 /* Given a number, try and find a space with the name number.
7038 Return a pointer to a space dictionary chain entry for the space
7039 that was found or NULL on failure. */
7041 static sd_chain_struct
*
7042 pa_find_space_by_number (number
)
7045 sd_chain_struct
*space_chain
;
7047 for (space_chain
= space_dict_root
;
7049 space_chain
= space_chain
->sd_next
)
7051 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
7055 /* No appropriate space found. Return NULL. */
7059 /* Return the starting address for the given subspace. If the starting
7060 address is unknown then return zero. */
7063 pa_subspace_start (space
, quadrant
)
7064 sd_chain_struct
*space
;
7067 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
7068 is not correct for the PA OSF1 port. */
7069 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
7071 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
7078 /* FIXME. Needs documentation. */
7080 pa_next_subseg (space
)
7081 sd_chain_struct
*space
;
7084 space
->sd_last_subseg
++;
7085 return space
->sd_last_subseg
;
7089 /* Helper function for pa_stringer. Used to find the end of
7096 unsigned int c
= *s
& CHAR_MASK
;
7099 /* We must have a valid space and subspace. */
7100 pa_check_current_space_and_subspace ();
7114 /* Handle a .STRING type pseudo-op. */
7117 pa_stringer (append_zero
)
7120 char *s
, num_buf
[4];
7124 /* Preprocess the string to handle PA-specific escape sequences.
7125 For example, \xDD where DD is a hexidecimal number should be
7126 changed to \OOO where OOO is an octal number. */
7128 /* Skip the opening quote. */
7129 s
= input_line_pointer
+ 1;
7131 while (is_a_char (c
= pa_stringer_aux (s
++)))
7138 /* Handle \x<num>. */
7141 unsigned int number
;
7146 /* Get pas the 'x'. */
7148 for (num_digit
= 0, number
= 0, dg
= *s
;
7150 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
7151 || (dg
>= 'A' && dg
<= 'F'));
7155 number
= number
* 16 + dg
- '0';
7156 else if (dg
>= 'a' && dg
<= 'f')
7157 number
= number
* 16 + dg
- 'a' + 10;
7159 number
= number
* 16 + dg
- 'A' + 10;
7169 sprintf (num_buf
, "%02o", number
);
7172 sprintf (num_buf
, "%03o", number
);
7175 for (i
= 0; i
<= num_digit
; i
++)
7176 s_start
[i
] = num_buf
[i
];
7180 /* This might be a "\"", skip over the escaped char. */
7187 stringer (append_zero
);
7188 pa_undefine_label ();
7191 /* Handle a .VERSION pseudo-op. */
7198 pa_undefine_label ();
7203 /* Handle a .COMPILER pseudo-op. */
7206 pa_compiler (unused
)
7209 obj_som_compiler (0);
7210 pa_undefine_label ();
7215 /* Handle a .COPYRIGHT pseudo-op. */
7218 pa_copyright (unused
)
7222 pa_undefine_label ();
7225 /* Just like a normal cons, but when finished we have to undefine
7226 the latest space label. */
7233 pa_undefine_label ();
7236 /* Switch to the data space. As usual delete our label. */
7243 current_space
= is_defined_space ("$PRIVATE$");
7245 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7248 pa_undefine_label ();
7251 /* Like float_cons, but we need to undefine our label. */
7254 pa_float_cons (float_type
)
7257 float_cons (float_type
);
7258 pa_undefine_label ();
7261 /* Like s_fill, 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 /* Like lcomm, but delete our label when finished. */
7279 pa_lcomm (needs_align
)
7283 /* We must have a valid space and subspace. */
7284 pa_check_current_space_and_subspace ();
7287 s_lcomm (needs_align
);
7288 pa_undefine_label ();
7291 /* Like lsym, but delete our label when finished. */
7298 /* We must have a valid space and subspace. */
7299 pa_check_current_space_and_subspace ();
7303 pa_undefine_label ();
7306 /* Switch to the text space. Like s_text, but delete our
7307 label when finished. */
7313 current_space
= is_defined_space ("$TEXT$");
7315 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
7319 pa_undefine_label ();
7322 /* On the PA relocations which involve function symbols must not be
7323 adjusted. This so that the linker can know when/how to create argument
7324 relocation stubs for indirect calls and calls to static functions.
7326 "T" field selectors create DLT relative fixups for accessing
7327 globals and statics in PIC code; each DLT relative fixup creates
7328 an entry in the DLT table. The entries contain the address of
7329 the final target (eg accessing "foo" would create a DLT entry
7330 with the address of "foo").
7332 Unfortunately, the HP linker doesn't take into account any addend
7333 when generating the DLT; so accessing $LIT$+8 puts the address of
7334 $LIT$ into the DLT rather than the address of $LIT$+8.
7336 The end result is we can't perform relocation symbol reductions for
7337 any fixup which creates entries in the DLT (eg they use "T" field
7340 Reject reductions involving symbols with external scope; such
7341 reductions make life a living hell for object file editors.
7343 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7344 the code space. The SOM BFD backend doesn't know how to pull the
7345 right bits out of an instruction. */
7348 hppa_fix_adjustable (fixp
)
7351 struct hppa_fix_struct
*hppa_fix
;
7353 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7356 /* Reject reductions of symbols in 32bit relocs. */
7357 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
7360 /* Reject reductions of symbols in sym1-sym2 expressions when
7361 the fixup will occur in a CODE subspace.
7363 XXX FIXME: Long term we probably want to reject all of these;
7364 for example reducing in the debug section would lose if we ever
7365 supported using the optimizing hp linker. */
7368 && (hppa_fix
->segment
->flags
& SEC_CODE
))
7370 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
7371 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
7375 /* We can't adjust any relocs that use LR% and RR% field selectors.
7376 That confuses the HP linker. */
7377 if (hppa_fix
->fx_r_field
== e_lrsel
7378 || hppa_fix
->fx_r_field
== e_rrsel
7379 || hppa_fix
->fx_r_field
== e_nlrsel
)
7383 /* Reject reductions of symbols in DLT relative relocs,
7384 relocations with plabels. */
7385 if (hppa_fix
->fx_r_field
== e_tsel
7386 || hppa_fix
->fx_r_field
== e_ltsel
7387 || hppa_fix
->fx_r_field
== e_rtsel
7388 || hppa_fix
->fx_r_field
== e_psel
7389 || hppa_fix
->fx_r_field
== e_rpsel
7390 || hppa_fix
->fx_r_field
== e_lpsel
)
7393 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
7396 /* Reject absolute calls (jumps). */
7397 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
7400 /* Reject reductions of function symbols. */
7401 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
7407 /* Return nonzero if the fixup in FIXP will require a relocation,
7408 even it if appears that the fixup could be completely handled
7412 hppa_force_relocation (fixp
)
7415 struct hppa_fix_struct
*hppa_fixp
;
7418 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
7420 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
7421 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
7422 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
7423 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
7424 || fixp
->fx_r_type
== R_HPPA_END_TRY
7425 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
7426 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
7430 #define arg_reloc_stub_needed(CALLER, CALLEE) \
7431 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7434 /* It is necessary to force PC-relative calls/jumps to have a relocation
7435 entry if they're going to need either a argument relocation or long
7436 call stub. FIXME. Can't we need the same for absolute calls? */
7437 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
7438 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
7439 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
7440 hppa_fixp
->fx_arg_reloc
)))
7443 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
7444 - md_pcrel_from (fixp
));
7445 /* Now check and see if we're going to need a long-branch stub. */
7446 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
7447 && (distance
> 262143 || distance
< -262144))
7450 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
7452 #undef arg_reloc_stub_needed
7454 /* No need (yet) to force another relocations to be emitted. */
7458 /* Now for some ELF specific code. FIXME. */
7460 /* Mark the end of a function so that it's possible to compute
7461 the size of the function in hppa_elf_final_processing. */
7464 hppa_elf_mark_end_of_function ()
7466 /* ELF does not have EXIT relocations. All we do is create a
7467 temporary symbol marking the end of the function. */
7468 char *name
= (char *)
7469 xmalloc (strlen ("L$\001end_") +
7470 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
7476 strcpy (name
, "L$\001end_");
7477 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
7479 /* If we have a .exit followed by a .procend, then the
7480 symbol will have already been defined. */
7481 symbolP
= symbol_find (name
);
7484 /* The symbol has already been defined! This can
7485 happen if we have a .exit followed by a .procend.
7487 This is *not* an error. All we want to do is free
7488 the memory we just allocated for the name and continue. */
7493 /* symbol value should be the offset of the
7494 last instruction of the function */
7495 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
7499 S_CLEAR_EXTERNAL (symbolP
);
7500 symbol_table_insert (symbolP
);
7504 last_call_info
->end_symbol
= symbolP
;
7506 as_bad (_("Symbol '%s' could not be created."), name
);
7510 as_bad (_("No memory for symbol name."));
7514 /* For ELF, this function serves one purpose: to setup the st_size
7515 field of STT_FUNC symbols. To do this, we need to scan the
7516 call_info structure list, determining st_size in by taking the
7517 difference in the address of the beginning/end marker symbols. */
7520 elf_hppa_final_processing ()
7522 struct call_info
*call_info_pointer
;
7524 for (call_info_pointer
= call_info_root
;
7526 call_info_pointer
= call_info_pointer
->ci_next
)
7528 elf_symbol_type
*esym
7529 = ((elf_symbol_type
*)
7530 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
7531 esym
->internal_elf_sym
.st_size
=
7532 S_GET_VALUE (call_info_pointer
->end_symbol
)
7533 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;
7541 if (debug_type
== DEBUG_DWARF2
)