1 /* tc-hppa.c -- Assemble for the PA
2 Copyright (C) 1989, 93, 94, 95, 96, 97, 98, 1999
3 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 /* HP PA-RISC support was contributed by the Center for Software Science
24 at the University of Utah. */
32 #include "bfd/libhppa.h"
33 #include "bfd/libbfd.h"
35 /* Be careful, this file includes data *declarations*. */
36 #include "opcode/hppa.h"
38 #if defined (OBJ_ELF) && defined (OBJ_SOM)
39 error only one of OBJ_ELF
and OBJ_SOM can be defined
42 /* A "convient" place to put object file dependencies which do
43 not need to be seen outside of tc-hppa.c. */
45 /* Object file formats specify relocation types. */
46 typedef elf_hppa_reloc_type reloc_type
;
48 /* Object file formats specify BFD symbol types. */
49 typedef elf_symbol_type obj_symbol_type
;
52 /* How to generate a relocation. */
53 #define hppa_gen_reloc_type _bfd_elf64_hppa_gen_reloc_type
55 #define hppa_gen_reloc_type _bfd_elf32_hppa_gen_reloc_type
58 /* ELF objects can have versions, but apparently do not have anywhere
59 to store a copyright string. */
60 #define obj_version obj_elf_version
61 #define obj_copyright obj_elf_version
63 #define UNWIND_SECTION_NAME ".PARISC.unwind"
67 /* Names of various debugging spaces/subspaces. */
68 #define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
69 #define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
70 #define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
71 #define UNWIND_SECTION_NAME "$UNWIND$"
73 /* Object file formats specify relocation types. */
74 typedef int reloc_type
;
76 /* SOM objects can have both a version string and a copyright string. */
77 #define obj_version obj_som_version
78 #define obj_copyright obj_som_copyright
80 /* How to generate a relocation. */
81 #define hppa_gen_reloc_type hppa_som_gen_reloc_type
83 /* Object file formats specify BFD symbol types. */
84 typedef som_symbol_type obj_symbol_type
;
86 /* This apparently isn't in older versions of hpux reloc.h. */
88 #define R_DLT_REL 0x78
100 /* Various structures and types used internally in tc-hppa.c. */
102 /* Unwind table and descriptor. FIXME: Sync this with GDB version. */
106 unsigned int cannot_unwind
:1;
107 unsigned int millicode
:1;
108 unsigned int millicode_save_rest
:1;
109 unsigned int region_desc
:2;
110 unsigned int save_sr
:2;
111 unsigned int entry_fr
:4;
112 unsigned int entry_gr
:5;
113 unsigned int args_stored
:1;
114 unsigned int call_fr
:5;
115 unsigned int call_gr
:5;
116 unsigned int save_sp
:1;
117 unsigned int save_rp
:1;
118 unsigned int save_rp_in_frame
:1;
119 unsigned int extn_ptr_defined
:1;
120 unsigned int cleanup_defined
:1;
122 unsigned int hpe_interrupt_marker
:1;
123 unsigned int hpux_interrupt_marker
:1;
124 unsigned int reserved
:3;
125 unsigned int frame_size
:27;
130 /* Starting and ending offsets of the region described by
132 unsigned int start_offset
;
133 unsigned int end_offset
;
134 struct unwind_desc descriptor
;
137 /* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
138 control the entry and exit code they generate. It is also used in
139 creation of the correct stack unwind descriptors.
141 NOTE: GAS does not support .enter and .leave for the generation of
142 prologues and epilogues. FIXME.
144 The fields in structure roughly correspond to the arguments available on the
145 .callinfo pseudo-op. */
149 /* The unwind descriptor being built. */
150 struct unwind_table ci_unwind
;
152 /* Name of this function. */
153 symbolS
*start_symbol
;
155 /* (temporary) symbol used to mark the end of this function. */
158 /* Next entry in the chain. */
159 struct call_info
*ci_next
;
162 /* Operand formats for FP instructions. Note not all FP instructions
163 allow all four formats to be used (for example fmpysub only allows
167 SGL
, DBL
, ILLEGAL_FMT
, QUAD
, W
, UW
, DW
, UDW
, QW
, UQW
171 /* This fully describes the symbol types which may be attached to
172 an EXPORT or IMPORT directive. Only SOM uses this formation
173 (ELF has no need for it). */
177 SYMBOL_TYPE_ABSOLUTE
,
181 SYMBOL_TYPE_MILLICODE
,
183 SYMBOL_TYPE_PRI_PROG
,
184 SYMBOL_TYPE_SEC_PROG
,
188 /* This structure contains information needed to assemble
189 individual instructions. */
192 /* Holds the opcode after parsing by pa_ip. */
193 unsigned long opcode
;
195 /* Holds an expression associated with the current instruction. */
198 /* Does this instruction use PC-relative addressing. */
201 /* Floating point formats for operand1 and operand2. */
202 fp_operand_format fpof1
;
203 fp_operand_format fpof2
;
206 /* Holds the field selector for this instruction
207 (for example L%, LR%, etc). */
210 /* Holds any argument relocation bits associated with this
211 instruction. (instruction should be some sort of call). */
214 /* The format specification for this instruction. */
217 /* The relocation (if any) associated with this instruction. */
221 /* PA-89 floating point registers are arranged like this:
224 +--------------+--------------+
225 | 0 or 16L | 16 or 16R |
226 +--------------+--------------+
227 | 1 or 17L | 17 or 17R |
228 +--------------+--------------+
236 +--------------+--------------+
237 | 14 or 30L | 30 or 30R |
238 +--------------+--------------+
239 | 15 or 31L | 31 or 31R |
240 +--------------+--------------+
243 The following is a version of pa_parse_number that
244 handles the L/R notation and returns the correct
245 value to put into the instruction register field.
246 The correct value to put into the instruction is
247 encoded in the structure 'pa_11_fp_reg_struct'. */
249 struct pa_11_fp_reg_struct
251 /* The register number. */
258 /* Additional information needed to build argument relocation stubs. */
261 /* The argument relocation specification. */
262 unsigned int arg_reloc
;
264 /* Number of arguments. */
265 unsigned int arg_count
;
269 /* This structure defines an entry in the subspace dictionary
272 struct subspace_dictionary_chain
274 /* Nonzero if this space has been defined by the user code. */
275 unsigned int ssd_defined
;
277 /* Name of this subspace. */
280 /* GAS segment and subsegment associated with this subspace. */
284 /* Next space in the subspace dictionary chain. */
285 struct subspace_dictionary_chain
*ssd_next
;
288 typedef struct subspace_dictionary_chain ssd_chain_struct
;
290 /* This structure defines an entry in the subspace dictionary
293 struct space_dictionary_chain
295 /* Nonzero if this space has been defined by the user code or
296 as a default space. */
297 unsigned int sd_defined
;
299 /* Nonzero if this spaces has been defined by the user code. */
300 unsigned int sd_user_defined
;
302 /* The space number (or index). */
303 unsigned int sd_spnum
;
305 /* The name of this subspace. */
308 /* GAS segment to which this subspace corresponds. */
311 /* Current subsegment number being used. */
314 /* The chain of subspaces contained within this space. */
315 ssd_chain_struct
*sd_subspaces
;
317 /* The next entry in the space dictionary chain. */
318 struct space_dictionary_chain
*sd_next
;
321 typedef struct space_dictionary_chain sd_chain_struct
;
323 /* This structure defines attributes of the default subspace
324 dictionary entries. */
326 struct default_subspace_dict
328 /* Name of the subspace. */
331 /* FIXME. Is this still needed? */
334 /* Nonzero if this subspace is loadable. */
337 /* Nonzero if this subspace contains only code. */
340 /* Nonzero if this is a common subspace. */
343 /* Nonzero if this is a common subspace which allows symbols
344 to be multiply defined. */
347 /* Nonzero if this subspace should be zero filled. */
350 /* Sort key for this subspace. */
353 /* Access control bits for this subspace. Can represent RWX access
354 as well as privilege level changes for gateways. */
357 /* Index of containing space. */
360 /* Alignment (in bytes) of this subspace. */
363 /* Quadrant within space where this subspace should be loaded. */
366 /* An index into the default spaces array. */
369 /* Subsegment associated with this subspace. */
373 /* This structure defines attributes of the default space
374 dictionary entries. */
376 struct default_space_dict
378 /* Name of the space. */
381 /* Space number. It is possible to identify spaces within
382 assembly code numerically! */
385 /* Nonzero if this space is loadable. */
388 /* Nonzero if this space is "defined". FIXME is still needed */
391 /* Nonzero if this space can not be shared. */
394 /* Sort key for this space. */
397 /* Segment associated with this space. */
402 /* Structure for previous label tracking. Needed so that alignments,
403 callinfo declarations, etc can be easily attached to a particular
405 typedef struct label_symbol_struct
407 struct symbol
*lss_label
;
409 sd_chain_struct
*lss_space
;
414 struct label_symbol_struct
*lss_next
;
418 /* Extra information needed to perform fixups (relocations) on the PA. */
419 struct hppa_fix_struct
421 /* The field selector. */
422 enum hppa_reloc_field_selector_type_alt fx_r_field
;
427 /* Format of fixup. */
430 /* Argument relocation bits. */
433 /* The segment this fixup appears in. */
437 /* Structure to hold information about predefined registers. */
445 /* This structure defines the mapping from a FP condition string
446 to a condition number which can be recorded in an instruction. */
453 /* This structure defines a mapping from a field selector
454 string to a field selector type. */
455 struct selector_entry
461 /* Prototypes for functions local to tc-hppa.c. */
464 static void pa_check_current_space_and_subspace
PARAMS ((void));
467 static fp_operand_format pa_parse_fp_format
PARAMS ((char **s
));
468 static void pa_cons
PARAMS ((int));
469 static void pa_data
PARAMS ((int));
470 static void pa_float_cons
PARAMS ((int));
471 static void pa_fill
PARAMS ((int));
472 static void pa_lcomm
PARAMS ((int));
473 static void pa_lsym
PARAMS ((int));
474 static void pa_stringer
PARAMS ((int));
475 static void pa_text
PARAMS ((int));
476 static void pa_version
PARAMS ((int));
477 static int pa_parse_fp_cmp_cond
PARAMS ((char **));
478 static int get_expression
PARAMS ((char *));
479 static int pa_get_absolute_expression
PARAMS ((struct pa_it
*, char **));
480 static int evaluate_absolute
PARAMS ((struct pa_it
*));
481 static unsigned int pa_build_arg_reloc
PARAMS ((char *));
482 static unsigned int pa_align_arg_reloc
PARAMS ((unsigned int, unsigned int));
483 static int pa_parse_nullif
PARAMS ((char **));
484 static int pa_parse_nonneg_cmpsub_cmpltr
PARAMS ((char **, int));
485 static int pa_parse_neg_cmpsub_cmpltr
PARAMS ((char **, int));
486 static int pa_parse_neg_add_cmpltr
PARAMS ((char **, int));
487 static int pa_parse_nonneg_add_cmpltr
PARAMS ((char **, int));
488 static void pa_block
PARAMS ((int));
489 static void pa_brtab
PARAMS ((int));
490 static void pa_try
PARAMS ((int));
491 static void pa_call
PARAMS ((int));
492 static void pa_call_args
PARAMS ((struct call_desc
*));
493 static void pa_callinfo
PARAMS ((int));
494 static void pa_code
PARAMS ((int));
495 static void pa_comm
PARAMS ((int));
496 static void pa_copyright
PARAMS ((int));
497 static void pa_end
PARAMS ((int));
498 static void pa_enter
PARAMS ((int));
499 static void pa_entry
PARAMS ((int));
500 static void pa_equ
PARAMS ((int));
501 static void pa_exit
PARAMS ((int));
502 static void pa_export
PARAMS ((int));
503 static void pa_type_args
PARAMS ((symbolS
*, int));
504 static void pa_import
PARAMS ((int));
505 static void pa_label
PARAMS ((int));
506 static void pa_leave
PARAMS ((int));
507 static void pa_level
PARAMS ((int));
508 static void pa_origin
PARAMS ((int));
509 static void pa_proc
PARAMS ((int));
510 static void pa_procend
PARAMS ((int));
511 static void pa_param
PARAMS ((int));
512 static void pa_undefine_label
PARAMS ((void));
513 static int need_pa11_opcode
PARAMS ((struct pa_it
*,
514 struct pa_11_fp_reg_struct
*));
515 static int pa_parse_number
PARAMS ((char **, struct pa_11_fp_reg_struct
*));
516 static label_symbol_struct
*pa_get_label
PARAMS ((void));
518 static void pa_compiler
PARAMS ((int));
519 static void pa_align
PARAMS ((int));
520 static void pa_space
PARAMS ((int));
521 static void pa_spnum
PARAMS ((int));
522 static void pa_subspace
PARAMS ((int));
523 static sd_chain_struct
*create_new_space
PARAMS ((char *, int, int,
526 static ssd_chain_struct
*create_new_subspace
PARAMS ((sd_chain_struct
*,
531 static ssd_chain_struct
*update_subspace
PARAMS ((sd_chain_struct
*,
532 char *, int, int, int,
536 static sd_chain_struct
*is_defined_space
PARAMS ((char *));
537 static ssd_chain_struct
*is_defined_subspace
PARAMS ((char *));
538 static sd_chain_struct
*pa_segment_to_space
PARAMS ((asection
*));
539 static ssd_chain_struct
*pa_subsegment_to_subspace
PARAMS ((asection
*,
541 static sd_chain_struct
*pa_find_space_by_number
PARAMS ((int));
542 static unsigned int pa_subspace_start
PARAMS ((sd_chain_struct
*, int));
543 static sd_chain_struct
*pa_parse_space_stmt
PARAMS ((char *, int));
544 static int pa_next_subseg
PARAMS ((sd_chain_struct
*));
545 static void pa_spaces_begin
PARAMS ((void));
547 static void pa_ip
PARAMS ((char *));
548 static void fix_new_hppa
PARAMS ((fragS
*, int, int, symbolS
*,
549 long, expressionS
*, int,
550 bfd_reloc_code_real_type
,
551 enum hppa_reloc_field_selector_type_alt
,
553 static int is_end_of_statement
PARAMS ((void));
554 static int reg_name_search
PARAMS ((char *));
555 static int pa_chk_field_selector
PARAMS ((char **));
556 static int is_same_frag
PARAMS ((fragS
*, fragS
*));
557 static void process_exit
PARAMS ((void));
558 static int log2
PARAMS ((int));
559 static unsigned int pa_stringer_aux
PARAMS ((char *));
562 static void hppa_elf_mark_end_of_function
PARAMS ((void));
563 static void pa_build_unwind_subspace
PARAMS ((struct call_info
*));
566 /* File and gloally scoped variable declarations. */
569 /* Root and final entry in the space chain. */
570 static sd_chain_struct
*space_dict_root
;
571 static sd_chain_struct
*space_dict_last
;
573 /* The current space and subspace. */
574 static sd_chain_struct
*current_space
;
575 static ssd_chain_struct
*current_subspace
;
578 /* Root of the call_info chain. */
579 static struct call_info
*call_info_root
;
581 /* The last call_info (for functions) structure
582 seen so it can be associated with fixups and
584 static struct call_info
*last_call_info
;
586 /* The last call description (for actual calls). */
587 static struct call_desc last_call_desc
;
589 /* handle of the OPCODE hash table */
590 static struct hash_control
*op_hash
= NULL
;
592 /* This array holds the chars that always start a comment. If the
593 pre-processor is disabled, these aren't very useful. */
594 const char comment_chars
[] = ";";
596 /* Table of pseudo ops for the PA. FIXME -- how many of these
597 are now redundant with the overall GAS and the object file
599 const pseudo_typeS md_pseudo_table
[] =
601 /* align pseudo-ops on the PA specify the actual alignment requested,
602 not the log2 of the requested alignment. */
604 {"align", pa_align
, 8},
607 {"align", s_align_bytes
, 8},
609 {"begin_brtab", pa_brtab
, 1},
610 {"begin_try", pa_try
, 1},
611 {"block", pa_block
, 1},
612 {"blockz", pa_block
, 0},
613 {"byte", pa_cons
, 1},
614 {"call", pa_call
, 0},
615 {"callinfo", pa_callinfo
, 0},
616 {"code", pa_code
, 0},
617 {"comm", pa_comm
, 0},
619 {"compiler", pa_compiler
, 0},
621 {"copyright", pa_copyright
, 0},
622 {"data", pa_data
, 0},
623 {"double", pa_float_cons
, 'd'},
624 {"dword", pa_cons
, 8},
626 {"end_brtab", pa_brtab
, 0},
627 {"end_try", pa_try
, 0},
628 {"enter", pa_enter
, 0},
629 {"entry", pa_entry
, 0},
631 {"exit", pa_exit
, 0},
632 {"export", pa_export
, 0},
633 {"fill", pa_fill
, 0},
634 {"float", pa_float_cons
, 'f'},
635 {"half", pa_cons
, 2},
636 {"import", pa_import
, 0},
638 {"label", pa_label
, 0},
639 {"lcomm", pa_lcomm
, 0},
640 {"leave", pa_leave
, 0},
641 {"level", pa_level
, 0},
642 {"long", pa_cons
, 4},
643 {"lsym", pa_lsym
, 0},
645 {"nsubspa", pa_subspace
, 1},
647 {"octa", pa_cons
, 16},
648 {"org", pa_origin
, 0},
649 {"origin", pa_origin
, 0},
650 {"param", pa_param
, 0},
651 {"proc", pa_proc
, 0},
652 {"procend", pa_procend
, 0},
653 {"quad", pa_cons
, 8},
655 {"short", pa_cons
, 2},
656 {"single", pa_float_cons
, 'f'},
658 {"space", pa_space
, 0},
659 {"spnum", pa_spnum
, 0},
661 {"string", pa_stringer
, 0},
662 {"stringz", pa_stringer
, 1},
664 {"subspa", pa_subspace
, 0},
666 {"text", pa_text
, 0},
667 {"version", pa_version
, 0},
668 {"word", pa_cons
, 4},
672 /* This array holds the chars that only start a comment at the beginning of
673 a line. If the line seems to have the form '# 123 filename'
674 .line and .file directives will appear in the pre-processed output.
676 Note that input_file.c hand checks for '#' at the beginning of the
677 first line of the input file. This is because the compiler outputs
678 #NO_APP at the beginning of its output.
680 Also note that C style comments will always work. */
681 const char line_comment_chars
[] = "#";
683 /* This array holds the characters which act as line separators. */
684 const char line_separator_chars
[] = "!";
686 /* Chars that can be used to separate mant from exp in floating point nums. */
687 const char EXP_CHARS
[] = "eE";
689 /* Chars that mean this number is a floating point constant.
690 As in 0f12.456 or 0d1.2345e12.
692 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
693 changed in read.c. Ideally it shouldn't hae to know abou it at
694 all, but nothing is ideal around here. */
695 const char FLT_CHARS
[] = "rRsSfFdDxXpP";
697 static struct pa_it the_insn
;
699 /* Points to the end of an expression just parsed by get_expressoin
700 and friends. FIXME. This shouldn't be handled with a file-global
702 static char *expr_end
;
704 /* Nonzero if a .callinfo appeared within the current procedure. */
705 static int callinfo_found
;
707 /* Nonzero if the assembler is currently within a .entry/.exit pair. */
708 static int within_entry_exit
;
710 /* Nonzero if the assembler is currently within a procedure definition. */
711 static int within_procedure
;
713 /* Handle on strucutre which keep track of the last symbol
714 seen in each subspace. */
715 static label_symbol_struct
*label_symbols_rootp
= NULL
;
717 /* Holds the last field selector. */
718 static int hppa_field_selector
;
721 /* A dummy bfd symbol so that all relocations have symbols of some kind. */
722 static symbolS
*dummy_symbol
;
725 /* Nonzero if errors are to be printed. */
726 static int print_errors
= 1;
728 /* List of registers that are pre-defined:
730 Each general register has one predefined name of the form
731 %r<REGNUM> which has the value <REGNUM>.
733 Space and control registers are handled in a similar manner,
734 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
736 Likewise for the floating point registers, but of the form
737 %fr<REGNUM>. Floating point registers have additional predefined
738 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
739 again have the value <REGNUM>.
741 Many registers also have synonyms:
743 %r26 - %r23 have %arg0 - %arg3 as synonyms
744 %r28 - %r29 have %ret0 - %ret1 as synonyms
745 %r30 has %sp as a synonym
746 %r27 has %dp as a synonym
747 %r2 has %rp as a synonym
749 Almost every control register has a synonym; they are not listed
752 The table is sorted. Suitable for searching by a binary search. */
754 static const struct pd_reg pre_defined_registers
[] =
954 /* This table is sorted by order of the length of the string. This is
955 so we check for <> before we check for <. If we had a <> and checked
956 for < first, we would get a false match. */
957 static const struct fp_cond_map fp_cond_map
[] =
993 static const struct selector_entry selector_table
[] =
1018 /* default space and subspace dictionaries */
1020 #define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1021 #define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1023 /* pre-defined subsegments (subspaces) for the HPPA. */
1024 #define SUBSEG_CODE 0
1025 #define SUBSEG_LIT 1
1026 #define SUBSEG_MILLI 2
1027 #define SUBSEG_DATA 0
1028 #define SUBSEG_BSS 2
1029 #define SUBSEG_UNWIND 3
1030 #define SUBSEG_GDB_STRINGS 0
1031 #define SUBSEG_GDB_SYMBOLS 1
1033 static struct default_subspace_dict pa_def_subspaces
[] =
1035 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE
},
1036 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA
},
1037 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT
},
1038 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI
},
1039 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS
},
1040 {NULL
, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1043 static struct default_space_dict pa_def_spaces
[] =
1045 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL
},
1046 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL
},
1047 {NULL
, 0, 0, 0, 0, 0, ASEC_NULL
}
1050 /* Misc local definitions used by the assembler. */
1052 /* These macros are used to maintain spaces/subspaces. */
1053 #define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1054 #define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1055 #define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1056 #define SPACE_NAME(space_chain) (space_chain)->sd_name
1058 #define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1059 #define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1062 /* Return nonzero if the string pointed to by S potentially represents
1063 a right or left half of a FP register */
1064 #define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1065 #define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1067 /* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1068 main loop after insertion. */
1070 #define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1072 ((OPCODE) |= (FIELD) << (START)); \
1076 /* Simple range checking for FIELD againt HIGH and LOW bounds.
1077 IGNORE is used to suppress the error message. */
1079 #define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1081 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1084 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1090 #define is_DP_relative(exp) \
1091 ((exp).X_op == O_subtract \
1092 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
1094 #define is_PC_relative(exp) \
1095 ((exp).X_op == O_subtract \
1096 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
1098 /* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1099 always be able to reduce the expression to a constant, so we don't
1100 need real complex handling yet. */
1101 #define is_complex(exp) \
1102 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1104 /* Actual functions to implement the PA specific code for the assembler. */
1106 /* Called before writing the object file. Make sure entry/exit and
1107 proc/procend pairs match. */
1112 if (within_entry_exit
)
1113 as_fatal (_("Missing .exit\n"));
1115 if (within_procedure
)
1116 as_fatal (_("Missing .procend\n"));
1119 /* Returns a pointer to the label_symbol_struct for the current space.
1120 or NULL if no label_symbol_struct exists for the current space. */
1122 static label_symbol_struct
*
1125 label_symbol_struct
*label_chain
;
1127 for (label_chain
= label_symbols_rootp
;
1129 label_chain
= label_chain
->lss_next
)
1132 if (current_space
== label_chain
->lss_space
&& label_chain
->lss_label
)
1136 if (now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
)
1144 /* Defines a label for the current space. If one is already defined,
1145 this function will replace it with the new label. */
1148 pa_define_label (symbol
)
1151 label_symbol_struct
*label_chain
= pa_get_label ();
1154 label_chain
->lss_label
= symbol
;
1157 /* Create a new label entry and add it to the head of the chain. */
1159 = (label_symbol_struct
*) xmalloc (sizeof (label_symbol_struct
));
1160 label_chain
->lss_label
= symbol
;
1162 label_chain
->lss_space
= current_space
;
1165 label_chain
->lss_segment
= now_seg
;
1167 label_chain
->lss_next
= NULL
;
1169 if (label_symbols_rootp
)
1170 label_chain
->lss_next
= label_symbols_rootp
;
1172 label_symbols_rootp
= label_chain
;
1176 /* Removes a label definition for the current space.
1177 If there is no label_symbol_struct entry, then no action is taken. */
1180 pa_undefine_label ()
1182 label_symbol_struct
*label_chain
;
1183 label_symbol_struct
*prev_label_chain
= NULL
;
1185 for (label_chain
= label_symbols_rootp
;
1187 label_chain
= label_chain
->lss_next
)
1191 && current_space
== label_chain
->lss_space
&& label_chain
->lss_label
1194 && now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
1198 /* Remove the label from the chain and free its memory. */
1199 if (prev_label_chain
)
1200 prev_label_chain
->lss_next
= label_chain
->lss_next
;
1202 label_symbols_rootp
= label_chain
->lss_next
;
1207 prev_label_chain
= label_chain
;
1212 /* An HPPA-specific version of fix_new. This is required because the HPPA
1213 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1214 results in the creation of an instance of an hppa_fix_struct. An
1215 hppa_fix_struct stores the extra information along with a pointer to the
1216 original fixS. This is attached to the original fixup via the
1217 tc_fix_data field. */
1220 fix_new_hppa (frag
, where
, size
, add_symbol
, offset
, exp
, pcrel
,
1221 r_type
, r_field
, r_format
, arg_reloc
, unwind_bits
)
1225 symbolS
*add_symbol
;
1229 bfd_reloc_code_real_type r_type
;
1230 enum hppa_reloc_field_selector_type_alt r_field
;
1237 struct hppa_fix_struct
*hppa_fix
= (struct hppa_fix_struct
*)
1238 obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
1241 new_fix
= fix_new_exp (frag
, where
, size
, exp
, pcrel
, r_type
);
1243 new_fix
= fix_new (frag
, where
, size
, add_symbol
, offset
, pcrel
, r_type
);
1244 new_fix
->tc_fix_data
= (void *) hppa_fix
;
1245 hppa_fix
->fx_r_type
= r_type
;
1246 hppa_fix
->fx_r_field
= r_field
;
1247 hppa_fix
->fx_r_format
= r_format
;
1248 hppa_fix
->fx_arg_reloc
= arg_reloc
;
1249 hppa_fix
->segment
= now_seg
;
1251 if (r_type
== R_ENTRY
|| r_type
== R_EXIT
)
1252 new_fix
->fx_offset
= *unwind_bits
;
1255 /* foo-$global$ is used to access non-automatic storage. $global$
1256 is really just a marker and has served its purpose, so eliminate
1257 it now so as not to confuse write.c. */
1258 if (new_fix
->fx_subsy
1259 && !strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$global$"))
1260 new_fix
->fx_subsy
= NULL
;
1263 /* Parse a .byte, .word, .long expression for the HPPA. Called by
1264 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1267 parse_cons_expression_hppa (exp
)
1270 hppa_field_selector
= pa_chk_field_selector (&input_line_pointer
);
1274 /* This fix_new is called by cons via TC_CONS_FIX_NEW.
1275 hppa_field_selector is set by the parse_cons_expression_hppa. */
1278 cons_fix_new_hppa (frag
, where
, size
, exp
)
1284 unsigned int rel_type
;
1286 /* Get a base relocation type. */
1287 if (is_DP_relative (*exp
))
1288 rel_type
= R_HPPA_GOTOFF
;
1289 else if (is_complex (*exp
))
1290 rel_type
= R_HPPA_COMPLEX
;
1294 if (hppa_field_selector
!= e_psel
&& hppa_field_selector
!= e_fsel
)
1295 as_warn (_("Invalid field selector. Assuming F%%."));
1297 fix_new_hppa (frag
, where
, size
,
1298 (symbolS
*) NULL
, (offsetT
) 0, exp
, 0, rel_type
,
1299 hppa_field_selector
, size
* 8, 0, NULL
);
1301 /* Reset field selector to its default state. */
1302 hppa_field_selector
= 0;
1305 /* This function is called once, at assembler startup time. It should
1306 set up all the tables, etc. that the MD part of the assembler will need. */
1311 const char *retval
= NULL
;
1315 last_call_info
= NULL
;
1316 call_info_root
= NULL
;
1318 /* Set the default machine type. */
1319 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
1320 as_warn (_("could not set architecture and machine"));
1322 /* Folding of text and data segments fails miserably on the PA.
1323 Warn user and disable "-R" option. */
1324 if (flag_readonly_data_in_text
)
1326 as_warn (_("-R option not supported on this target."));
1327 flag_readonly_data_in_text
= 0;
1334 op_hash
= hash_new ();
1336 while (i
< NUMOPCODES
)
1338 const char *name
= pa_opcodes
[i
].name
;
1339 retval
= hash_insert (op_hash
, name
, (struct pa_opcode
*) &pa_opcodes
[i
]);
1340 if (retval
!= NULL
&& *retval
!= '\0')
1342 as_fatal (_("Internal error: can't hash `%s': %s\n"), name
, retval
);
1347 if ((pa_opcodes
[i
].match
& pa_opcodes
[i
].mask
)
1348 != pa_opcodes
[i
].match
)
1350 fprintf (stderr
, _("internal error: losing opcode: `%s' \"%s\"\n"),
1351 pa_opcodes
[i
].name
, pa_opcodes
[i
].args
);
1356 while (i
< NUMOPCODES
&& !strcmp (pa_opcodes
[i
].name
, name
));
1360 as_fatal (_("Broken assembler. No assembly attempted."));
1363 /* SOM will change text_section. To make sure we never put
1364 anything into the old one switch to the new one now. */
1365 subseg_set (text_section
, 0);
1369 dummy_symbol
= symbol_find_or_make ("L$dummy");
1370 S_SET_SEGMENT (dummy_symbol
, text_section
);
1371 /* Force the symbol to be converted to a real symbol. */
1372 (void) symbol_get_bfdsym (dummy_symbol
);
1376 /* Assemble a single instruction storing it into a frag. */
1383 /* The had better be something to assemble. */
1386 /* If we are within a procedure definition, make sure we've
1387 defined a label for the procedure; handle case where the
1388 label was defined after the .PROC directive.
1390 Note there's not need to diddle with the segment or fragment
1391 for the label symbol in this case. We have already switched
1392 into the new $CODE$ subspace at this point. */
1393 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
1395 label_symbol_struct
*label_symbol
= pa_get_label ();
1399 if (label_symbol
->lss_label
)
1401 last_call_info
->start_symbol
= label_symbol
->lss_label
;
1402 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
1405 /* Also handle allocation of a fixup to hold the unwind
1406 information when the label appears after the proc/procend. */
1407 if (within_entry_exit
)
1409 char *where
= frag_more (0);
1411 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
1412 NULL
, (offsetT
) 0, NULL
,
1413 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
1414 (int *)&last_call_info
->ci_unwind
.descriptor
);
1419 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1422 as_bad (_("Missing function name for .PROC"));
1425 /* Assemble the instruction. Results are saved into "the_insn". */
1428 /* Get somewhere to put the assembled instrution. */
1431 /* Output the opcode. */
1432 md_number_to_chars (to
, the_insn
.opcode
, 4);
1434 /* If necessary output more stuff. */
1435 if (the_insn
.reloc
!= R_HPPA_NONE
)
1436 fix_new_hppa (frag_now
, (to
- frag_now
->fr_literal
), 4, NULL
,
1437 (offsetT
) 0, &the_insn
.exp
, the_insn
.pcrel
,
1438 the_insn
.reloc
, the_insn
.field_selector
,
1439 the_insn
.format
, the_insn
.arg_reloc
, NULL
);
1442 /* Do the real work for assembling a single instruction. Store results
1443 into the global "the_insn" variable. */
1449 char *error_message
= "";
1450 char *s
, c
, *argstart
, *name
, *save_s
;
1454 int cmpltr
, nullif
, flag
, cond
, num
;
1455 unsigned long opcode
;
1456 struct pa_opcode
*insn
;
1459 /* We must have a valid space and subspace. */
1460 pa_check_current_space_and_subspace ();
1463 /* Convert everything up to the first whitespace character into lower
1465 for (s
= str
; *s
!= ' ' && *s
!= '\t' && *s
!= '\n' && *s
!= '\0'; s
++)
1469 /* Skip to something interesting. */
1470 for (s
= str
; isupper (*s
) || islower (*s
) || (*s
>= '0' && *s
<= '3'); ++s
)
1489 as_fatal (_("Unknown opcode: `%s'"), str
);
1494 /* Look up the opcode in the has table. */
1495 if ((insn
= (struct pa_opcode
*) hash_find (op_hash
, str
)) == NULL
)
1497 as_bad ("Unknown opcode: `%s'", str
);
1506 /* Mark the location where arguments for the instruction start, then
1507 start processing them. */
1511 /* Do some initialization. */
1512 opcode
= insn
->match
;
1513 memset (&the_insn
, 0, sizeof (the_insn
));
1515 the_insn
.reloc
= R_HPPA_NONE
;
1517 /* If this instruction is specific to a particular architecture,
1518 then set a new architecture. */
1519 /* But do not automatically promote to pa2.0. The automatic promotion
1520 crud is for compatability with HP's old assemblers only. */
1522 && bfd_get_mach (stdoutput
) < insn
->arch
)
1524 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, insn
->arch
))
1525 as_warn (_("could not update architecture and machine"));
1527 else if (bfd_get_mach (stdoutput
) < insn
->arch
)
1533 /* Build the opcode, checking as we go to make
1534 sure that the operands match. */
1535 for (args
= insn
->args
;; ++args
)
1540 /* End of arguments. */
1556 /* These must match exactly. */
1565 /* Handle a 5 bit register or control register field at 10. */
1568 num
= pa_parse_number (&s
, 0);
1569 CHECK_FIELD (num
, 31, 0, 0);
1570 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1572 /* Handle %sar or %cr11. No bits get set, we just verify that it
1575 /* Skip whitespace before register. */
1576 while (*s
== ' ' || *s
== '\t')
1579 if (!strncasecmp(s
, "%sar", 4))
1584 else if (!strncasecmp(s
, "%cr11", 5))
1591 /* Handle a 5 bit register field at 15. */
1593 num
= pa_parse_number (&s
, 0);
1594 CHECK_FIELD (num
, 31, 0, 0);
1595 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1597 /* Handle a 5 bit register field at 31. */
1600 num
= pa_parse_number (&s
, 0);
1601 CHECK_FIELD (num
, 31, 0, 0);
1602 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1604 /* Handle a 5 bit register field at 10 and 15. */
1606 num
= pa_parse_number (&s
, 0);
1607 CHECK_FIELD (num
, 31, 0, 0);
1608 opcode
|= num
<< 16;
1609 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
1611 /* Handle a 5 bit field length at 31. */
1613 num
= pa_get_absolute_expression (&the_insn
, &s
);
1615 CHECK_FIELD (num
, 32, 1, 0);
1616 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
1618 /* Handle a 5 bit immediate at 15. */
1620 num
= pa_get_absolute_expression (&the_insn
, &s
);
1622 CHECK_FIELD (num
, 15, -16, 0);
1623 low_sign_unext (num
, 5, &num
);
1624 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1626 /* Handle a 5 bit immediate at 31. */
1628 num
= pa_get_absolute_expression (&the_insn
, &s
);
1630 CHECK_FIELD (num
, 15, -16, 0)
1631 low_sign_unext (num
, 5, &num
);
1632 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1634 /* Handle an unsigned 5 bit immediate at 31. */
1636 num
= pa_get_absolute_expression (&the_insn
, &s
);
1638 CHECK_FIELD (num
, 31, 0, 0);
1639 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
1641 /* Handle an unsigned 5 bit immediate at 15. */
1643 num
= pa_get_absolute_expression (&the_insn
, &s
);
1645 CHECK_FIELD (num
, 31, 0, 0);
1646 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
1648 /* Handle a 2 bit space identifier at 17. */
1650 num
= pa_parse_number (&s
, 0);
1651 CHECK_FIELD (num
, 3, 0, 1);
1652 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
1654 /* Handle a 3 bit space identifier at 18. */
1656 num
= pa_parse_number (&s
, 0);
1657 CHECK_FIELD (num
, 7, 0, 1);
1658 dis_assemble_3 (num
, &num
);
1659 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
1661 /* Handle all completers. */
1666 /* Handle a completer for an indexing load or store. */
1672 while (*s
== ',' && i
< 2)
1675 if (strncasecmp (s
, "sm", 2) == 0)
1682 else if (strncasecmp (s
, "m", 1) == 0)
1684 else if (strncasecmp (s
, "s", 1) == 0)
1687 as_bad (_("Invalid Indexed Load Completer."));
1692 as_bad (_("Invalid Indexed Load Completer Syntax."));
1694 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
1697 /* Handle a short load/store completer. */
1705 if (strncasecmp (s
, "ma", 2) == 0)
1710 else if (strncasecmp (s
, "mb", 2) == 0)
1716 as_bad (_("Invalid Short Load/Store Completer."));
1721 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1724 /* Handle a stbys completer. */
1730 while (*s
== ',' && i
< 2)
1733 if (strncasecmp (s
, "m", 1) == 0)
1735 else if (strncasecmp (s
, "b", 1) == 0)
1737 else if (strncasecmp (s
, "e", 1) == 0)
1740 as_bad (_("Invalid Store Bytes Short Completer"));
1745 as_bad (_("Invalid Store Bytes Short Completer"));
1747 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
1750 /* Handle a system control completer. */
1752 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
1760 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
1762 /* Handle signed/unsigned at 21. */
1766 if (strncasecmp (s
, ",s", 2) == 0)
1771 else if (strncasecmp (s
, ",u", 2) == 0)
1777 INSERT_FIELD_AND_CONTINUE (opcode
, sign
, 10);
1780 /* Handle left/right combination at 17:18. */
1790 as_bad(_("Invalid left/right combination completer"));
1793 INSERT_FIELD_AND_CONTINUE (opcode
, lr
, 13);
1796 as_bad(_("Invalid left/right combination completer"));
1799 /* Handle saturation at 24:25. */
1803 if (strncasecmp (s
, ",ss", 3) == 0)
1808 else if (strncasecmp (s
, ",us", 3) == 0)
1814 INSERT_FIELD_AND_CONTINUE (opcode
, sat
, 6);
1817 /* Handle permutation completer. */
1821 int permloc
[4] = {13,10,8,6};
1841 as_bad(_("Invalid permutation completer"));
1843 opcode
|= perm
<< permloc
[i
];
1848 as_bad(_("Invalid permutation completer"));
1856 /* Handle all conditions. */
1862 /* Handle FP compare conditions. */
1864 cond
= pa_parse_fp_cmp_cond (&s
);
1865 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
1867 /* Handle an add condition. */
1876 /* 64 bit conditions. */
1888 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1892 if (strcmp (name
, "=") == 0)
1894 else if (strcmp (name
, "<") == 0)
1896 else if (strcmp (name
, "<=") == 0)
1898 else if (strcasecmp (name
, "nuv") == 0)
1900 else if (strcasecmp (name
, "znv") == 0)
1902 else if (strcasecmp (name
, "sv") == 0)
1904 else if (strcasecmp (name
, "od") == 0)
1906 else if (strcasecmp (name
, "tr") == 0)
1911 else if (strcmp (name
, "<>") == 0)
1916 else if (strcmp (name
, ">=") == 0)
1921 else if (strcmp (name
, ">") == 0)
1926 else if (strcasecmp (name
, "uv") == 0)
1931 else if (strcasecmp (name
, "vnz") == 0)
1936 else if (strcasecmp (name
, "nsv") == 0)
1941 else if (strcasecmp (name
, "ev") == 0)
1946 /* ",*" is a valid condition. */
1947 else if (*args
== 'a')
1948 as_bad (_("Invalid Add Condition: %s"), name
);
1951 opcode
|= cmpltr
<< 13;
1952 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
1954 /* Handle non-negated add and branch condition. */
1956 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1959 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
1962 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1964 /* Handle negated add and branch condition. */
1968 /* Handle wide-mode non-negated add and branch condition. */
1972 /* Handle wide-mode negated add and branch condition. */
1976 /* Handle a negated or non-negated add and branch
1980 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1984 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
1987 as_bad (_("Invalid Compare/Subtract Condition"));
1992 /* Negated condition requires an opcode change. */
1996 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
1998 /* Handle branch on bit conditions. */
2016 if (strncmp (s
, "<", 1) == 0)
2021 else if (strncmp (s
, ">=", 2) == 0)
2027 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
2029 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
2031 /* Handle a compare/subtract condition. */
2040 /* 64 bit conditions. */
2052 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2056 if (strcmp (name
, "=") == 0)
2058 else if (strcmp (name
, "<") == 0)
2060 else if (strcmp (name
, "<=") == 0)
2062 else if (strcasecmp (name
, "<<") == 0)
2064 else if (strcasecmp (name
, "<<=") == 0)
2066 else if (strcasecmp (name
, "sv") == 0)
2068 else if (strcasecmp (name
, "od") == 0)
2070 else if (strcasecmp (name
, "tr") == 0)
2075 else if (strcmp (name
, "<>") == 0)
2080 else if (strcmp (name
, ">=") == 0)
2085 else if (strcmp (name
, ">") == 0)
2090 else if (strcasecmp (name
, ">>=") == 0)
2095 else if (strcasecmp (name
, ">>") == 0)
2100 else if (strcasecmp (name
, "nsv") == 0)
2105 else if (strcasecmp (name
, "ev") == 0)
2110 /* ",*" is a valid condition. */
2111 else if (*args
!= 'S')
2112 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2116 opcode
|= cmpltr
<< 13;
2117 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2119 /* Handle a non-negated compare condition. */
2121 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2124 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s
);
2127 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2129 /* Handle a negated compare condition. */
2133 /* Handle a 64 bit non-negated compare condition. */
2137 /* Handle a 64 bit negated compare condition. */
2141 /* Handle a 64 bit cmpib condition. */
2145 /* Handle a negated or non-negated compare/subtract
2149 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
2153 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
2156 as_bad (_("Invalid Compare/Subtract Condition."));
2161 /* Negated condition requires an opcode change. */
2166 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2168 /* Handle a logical instruction condition. */
2177 /* 64 bit conditions. */
2189 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2195 if (strcmp (name
, "=") == 0)
2197 else if (strcmp (name
, "<") == 0)
2199 else if (strcmp (name
, "<=") == 0)
2201 else if (strcasecmp (name
, "od") == 0)
2203 else if (strcasecmp (name
, "tr") == 0)
2208 else if (strcmp (name
, "<>") == 0)
2213 else if (strcmp (name
, ">=") == 0)
2218 else if (strcmp (name
, ">") == 0)
2223 else if (strcasecmp (name
, "ev") == 0)
2228 /* ",*" is a valid condition. */
2229 else if (*args
!= 'L')
2230 as_bad (_("Invalid Logical Instruction Condition."));
2233 opcode
|= cmpltr
<< 13;
2234 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2236 /* Handle a shift/extract/deposit condition. */
2245 /* 64 bit conditions. */
2257 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2261 if (strcmp (name
, "=") == 0)
2263 else if (strcmp (name
, "<") == 0)
2265 else if (strcasecmp (name
, "od") == 0)
2267 else if (strcasecmp (name
, "tr") == 0)
2269 else if (strcmp (name
, "<>") == 0)
2271 else if (strcmp (name
, ">=") == 0)
2273 else if (strcasecmp (name
, "ev") == 0)
2275 /* Handle movb,n. Put things back the way they were.
2276 This includes moving s back to where it started. */
2277 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
2283 /* ",*" is a valid condition. */
2284 else if (*args
!= 'X')
2285 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2288 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
2290 /* Handle a unit instruction condition. */
2299 /* 64 bit conditions. */
2310 if (strncasecmp (s
, "sbz", 3) == 0)
2315 else if (strncasecmp (s
, "shz", 3) == 0)
2320 else if (strncasecmp (s
, "sdc", 3) == 0)
2325 else if (strncasecmp (s
, "sbc", 3) == 0)
2330 else if (strncasecmp (s
, "shc", 3) == 0)
2335 else if (strncasecmp (s
, "tr", 2) == 0)
2341 else if (strncasecmp (s
, "nbz", 3) == 0)
2347 else if (strncasecmp (s
, "nhz", 3) == 0)
2353 else if (strncasecmp (s
, "ndc", 3) == 0)
2359 else if (strncasecmp (s
, "nbc", 3) == 0)
2365 else if (strncasecmp (s
, "nhc", 3) == 0)
2371 /* ",*" is a valid condition. */
2372 else if (*args
!= 'U')
2373 as_bad (_("Invalid Unit Instruction Condition."));
2375 opcode
|= cmpltr
<< 13;
2376 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
2384 /* Handle a nullification completer for branch instructions. */
2386 nullif
= pa_parse_nullif (&s
);
2387 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
2389 /* Handle a nullification completer for copr and spop insns. */
2391 nullif
= pa_parse_nullif (&s
);
2392 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
2395 /* Handle a 11 bit immediate at 31. */
2397 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2400 if (the_insn
.exp
.X_op
== O_constant
)
2402 num
= evaluate_absolute (&the_insn
);
2403 CHECK_FIELD (num
, 1023, -1024, 0);
2404 low_sign_unext (num
, 11, &num
);
2405 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2409 if (is_DP_relative (the_insn
.exp
))
2410 the_insn
.reloc
= R_HPPA_GOTOFF
;
2411 else if (is_PC_relative (the_insn
.exp
))
2412 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2414 the_insn
.reloc
= R_HPPA
;
2415 the_insn
.format
= 11;
2420 /* Handle a 14 bit immediate at 31. */
2422 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2425 if (the_insn
.exp
.X_op
== O_constant
)
2427 num
= evaluate_absolute (&the_insn
);
2428 CHECK_FIELD (num
, 8191, -8192, 0);
2429 low_sign_unext (num
, 14, &num
);
2430 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2434 if (is_DP_relative (the_insn
.exp
))
2435 the_insn
.reloc
= R_HPPA_GOTOFF
;
2436 else if (is_PC_relative (the_insn
.exp
))
2437 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2439 the_insn
.reloc
= R_HPPA
;
2440 the_insn
.format
= 14;
2444 /* Handle a 21 bit immediate at 31. */
2446 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2449 if (the_insn
.exp
.X_op
== O_constant
)
2451 num
= evaluate_absolute (&the_insn
);
2452 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
2453 dis_assemble_21 (num
, &num
);
2454 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2458 if (is_DP_relative (the_insn
.exp
))
2459 the_insn
.reloc
= R_HPPA_GOTOFF
;
2460 else if (is_PC_relative (the_insn
.exp
))
2461 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2463 the_insn
.reloc
= R_HPPA
;
2464 the_insn
.format
= 21;
2468 /* Handle a 12 bit branch displacement. */
2470 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2474 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L$0\001"))
2476 unsigned int w1
, w
, result
;
2478 num
= evaluate_absolute (&the_insn
);
2481 as_bad (_("Branch to unaligned address"));
2484 CHECK_FIELD (num
, 8199, -8184, 0);
2485 sign_unext ((num
- 8) >> 2, 12, &result
);
2486 dis_assemble_12 (result
, &w1
, &w
);
2487 INSERT_FIELD_AND_CONTINUE (opcode
, ((w1
<< 2) | w
), 0);
2491 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2492 the_insn
.format
= 12;
2493 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2494 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2499 /* Handle a 17 bit branch displacement. */
2501 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2505 if (!the_insn
.exp
.X_add_symbol
2506 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2509 unsigned int w2
, w1
, w
, result
;
2511 num
= evaluate_absolute (&the_insn
);
2514 as_bad (_("Branch to unaligned address"));
2517 CHECK_FIELD (num
, 262143, -262144, 0);
2519 if (the_insn
.exp
.X_add_symbol
)
2522 sign_unext (num
>> 2, 17, &result
);
2523 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2524 INSERT_FIELD_AND_CONTINUE (opcode
,
2525 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2529 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2530 the_insn
.format
= 17;
2531 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2532 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2536 /* Handle an absolute 17 bit branch target. */
2538 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2542 if (!the_insn
.exp
.X_add_symbol
2543 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2546 unsigned int w2
, w1
, w
, result
;
2548 num
= evaluate_absolute (&the_insn
);
2551 as_bad (_("Branch to unaligned address"));
2554 CHECK_FIELD (num
, 262143, -262144, 0);
2556 if (the_insn
.exp
.X_add_symbol
)
2559 sign_unext (num
>> 2, 17, &result
);
2560 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2561 INSERT_FIELD_AND_CONTINUE (opcode
,
2562 ((w2
<< 2) | (w1
<< 16) | w
), 0);
2566 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2567 the_insn
.format
= 17;
2568 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2569 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
2573 /* Handle a 2 bit shift count at 25. */
2575 num
= pa_get_absolute_expression (&the_insn
, &s
);
2577 CHECK_FIELD (num
, 3, 1, 0);
2578 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2580 /* Handle a 4 bit shift count at 25. */
2582 num
= pa_get_absolute_expression (&the_insn
, &s
);
2584 CHECK_FIELD (num
, 15, 0, 0);
2585 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2587 /* Handle a 5 bit shift count at 26. */
2589 num
= pa_get_absolute_expression (&the_insn
, &s
);
2591 CHECK_FIELD (num
, 31, 0, 0);
2592 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
2594 /* Handle a 6 bit shift count at 20,22:26. */
2596 num
= pa_get_absolute_expression (&the_insn
, &s
);
2598 CHECK_FIELD (num
, 63, 0, 0);
2600 opcode
|= (num
& 0x20) << 6;
2601 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
2603 /* Handle a 5 bit bit position at 26. */
2605 num
= pa_get_absolute_expression (&the_insn
, &s
);
2607 CHECK_FIELD (num
, 31, 0, 0);
2608 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
2610 /* Handle a 5 bit immediate at 10. */
2613 num
= pa_get_absolute_expression (&the_insn
, &s
);
2614 if (the_insn
.exp
.X_op
!= O_constant
)
2617 CHECK_FIELD (num
, 31, 0, 0);
2618 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
2620 /* Handle a 9 bit immediate at 28. */
2622 num
= pa_get_absolute_expression (&the_insn
, &s
);
2624 CHECK_FIELD (num
, 511, 1, 0);
2625 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
2627 /* Handle a 13 bit immediate at 18. */
2629 num
= pa_get_absolute_expression (&the_insn
, &s
);
2631 CHECK_FIELD (num
, 8191, 0, 0);
2632 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
2634 /* Handle a 26 bit immediate at 31. */
2636 num
= pa_get_absolute_expression (&the_insn
, &s
);
2638 CHECK_FIELD (num
, 671108864, 0, 0);
2639 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2641 /* Handle a 3 bit SFU identifier at 25. */
2644 as_bad (_("Invalid SFU identifier"));
2645 num
= pa_get_absolute_expression (&the_insn
, &s
);
2647 CHECK_FIELD (num
, 7, 0, 0);
2648 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2650 /* Handle a 20 bit SOP field for spop0. */
2652 num
= pa_get_absolute_expression (&the_insn
, &s
);
2654 CHECK_FIELD (num
, 1048575, 0, 0);
2655 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
2656 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2658 /* Handle a 15bit SOP field for spop1. */
2660 num
= pa_get_absolute_expression (&the_insn
, &s
);
2662 CHECK_FIELD (num
, 32767, 0, 0);
2663 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
2665 /* Handle a 10bit SOP field for spop3. */
2667 num
= pa_get_absolute_expression (&the_insn
, &s
);
2669 CHECK_FIELD (num
, 1023, 0, 0);
2670 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
2671 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2673 /* Handle a 15 bit SOP field for spop2. */
2675 num
= pa_get_absolute_expression (&the_insn
, &s
);
2677 CHECK_FIELD (num
, 32767, 0, 0);
2678 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
2679 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2681 /* Handle a 3-bit co-processor ID field. */
2684 as_bad (_("Invalid COPR identifier"));
2685 num
= pa_get_absolute_expression (&the_insn
, &s
);
2687 CHECK_FIELD (num
, 7, 0, 0);
2688 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
2690 /* Handle a 22bit SOP field for copr. */
2692 num
= pa_get_absolute_expression (&the_insn
, &s
);
2694 CHECK_FIELD (num
, 4194303, 0, 0);
2695 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
2696 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
2699 /* Handle a source FP operand format completer. */
2701 flag
= pa_parse_fp_format (&s
);
2702 the_insn
.fpof1
= flag
;
2703 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2705 /* Handle a destination FP operand format completer. */
2707 /* pa_parse_format needs the ',' prefix. */
2709 flag
= pa_parse_fp_format (&s
);
2710 the_insn
.fpof2
= flag
;
2711 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
2713 /* Handle a source FP operand format completer at 20. */
2715 flag
= pa_parse_fp_format (&s
);
2716 the_insn
.fpof1
= flag
;
2717 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
2719 /* Handle L/R register halves like 't'. */
2722 struct pa_11_fp_reg_struct result
;
2724 pa_parse_number (&s
, &result
);
2725 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2726 opcode
|= result
.number_part
;
2728 /* 0x30 opcodes are FP arithmetic operation opcodes
2729 and need to be turned into 0x38 opcodes. This
2730 is not necessary for loads/stores. */
2731 if (need_pa11_opcode (&the_insn
, &result
)
2732 && ((opcode
& 0xfc000000) == 0x30000000))
2735 INSERT_FIELD_AND_CONTINUE (opcode
, result
.l_r_select
& 1, 6);
2738 /* Handle L/R register halves like 'b'. */
2741 struct pa_11_fp_reg_struct result
;
2743 pa_parse_number (&s
, &result
);
2744 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2745 opcode
|= result
.number_part
<< 21;
2746 if (need_pa11_opcode (&the_insn
, &result
))
2748 opcode
|= (result
.l_r_select
& 1) << 7;
2754 /* Float operand 1 similar to 'b' but with l/r registers. */
2757 struct pa_11_fp_reg_struct result
;
2759 pa_parse_number (&s
, &result
);
2760 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2761 opcode
|= result
.number_part
<< 21;
2762 opcode
|= (result
.l_r_select
& 1) << 7;
2766 /* Handle L/R register halves like 'b'. */
2769 struct pa_11_fp_reg_struct result
;
2772 pa_parse_number (&s
, &result
);
2773 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2774 opcode
|= (result
.number_part
& 0x1c) << 11;
2775 opcode
|= (result
.number_part
& 0x3) << 9;
2776 opcode
|= (result
.l_r_select
& 1) << 8;
2780 /* Handle L/R register halves like 'x'. */
2783 struct pa_11_fp_reg_struct result
;
2785 pa_parse_number (&s
, &result
);
2786 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2787 opcode
|= (result
.number_part
& 0x1f) << 16;
2788 if (need_pa11_opcode (&the_insn
, &result
))
2790 opcode
|= (result
.l_r_select
& 1) << 1;
2795 /* Handle L/R register halves like 'x'. */
2798 struct pa_11_fp_reg_struct result
;
2800 pa_parse_number (&s
, &result
);
2801 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2802 opcode
|= (result
.number_part
& 0x1f) << 16;
2803 if (need_pa11_opcode (&the_insn
, &result
))
2805 opcode
|= (result
.l_r_select
& 1) << 12;
2811 /* Float operand 2, like 'x' but with l/r register halves. */
2814 struct pa_11_fp_reg_struct result
;
2816 pa_parse_number (&s
, &result
);
2817 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2818 opcode
|= (result
.number_part
& 0x1f) << 16;
2819 opcode
|= (result
.l_r_select
& 1) << 12;
2823 /* Handle a 5 bit register field at 10. */
2826 struct pa_11_fp_reg_struct result
;
2828 pa_parse_number (&s
, &result
);
2829 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2830 if (the_insn
.fpof1
== SGL
)
2832 if (result
.number_part
< 16)
2834 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2838 result
.number_part
&= 0xF;
2839 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2841 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 21);
2844 /* Handle a 5 bit register field at 15. */
2847 struct pa_11_fp_reg_struct result
;
2849 pa_parse_number (&s
, &result
);
2850 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2851 if (the_insn
.fpof1
== SGL
)
2853 if (result
.number_part
< 16)
2855 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2858 result
.number_part
&= 0xF;
2859 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2861 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 16);
2864 /* Handle a 5 bit register field at 31. */
2867 struct pa_11_fp_reg_struct result
;
2869 pa_parse_number (&s
, &result
);
2870 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2871 if (the_insn
.fpof1
== SGL
)
2873 if (result
.number_part
< 16)
2875 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2878 result
.number_part
&= 0xF;
2879 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2881 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 0);
2884 /* Handle a 5 bit register field at 20. */
2887 struct pa_11_fp_reg_struct result
;
2889 pa_parse_number (&s
, &result
);
2890 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2891 if (the_insn
.fpof1
== SGL
)
2893 if (result
.number_part
< 16)
2895 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2898 result
.number_part
&= 0xF;
2899 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2901 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 11);
2904 /* Handle a 5 bit register field at 25. */
2907 struct pa_11_fp_reg_struct result
;
2909 pa_parse_number (&s
, &result
);
2910 CHECK_FIELD (result
.number_part
, 31, 0, 0);
2911 if (the_insn
.fpof1
== SGL
)
2913 if (result
.number_part
< 16)
2915 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2918 result
.number_part
&= 0xF;
2919 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2921 INSERT_FIELD_AND_CONTINUE (opcode
, result
.number_part
, 6);
2924 /* Handle a floating point operand format at 26.
2925 Only allows single and double precision. */
2927 flag
= pa_parse_fp_format (&s
);
2933 the_insn
.fpof1
= flag
;
2939 as_bad (_("Invalid Floating Point Operand Format."));
2950 /* Check if the args matched. */
2953 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
2954 && !strcmp (insn
->name
, insn
[1].name
))
2962 as_bad (_("Invalid operands %s"), error_message
);
2969 the_insn
.opcode
= opcode
;
2972 /* Turn a string in input_line_pointer into a floating point constant of type
2973 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
2974 emitted is stored in *sizeP . An error message or NULL is returned. */
2976 #define MAX_LITTLENUMS 6
2979 md_atof (type
, litP
, sizeP
)
2985 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
2986 LITTLENUM_TYPE
*wordP
;
3018 return _("Bad call to MD_ATOF()");
3020 t
= atof_ieee (input_line_pointer
, type
, words
);
3022 input_line_pointer
= t
;
3023 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
3024 for (wordP
= words
; prec
--;)
3026 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
3027 litP
+= sizeof (LITTLENUM_TYPE
);
3032 /* Write out big-endian. */
3035 md_number_to_chars (buf
, val
, n
)
3040 number_to_chars_bigendian (buf
, val
, n
);
3043 /* Translate internal representation of relocation info to BFD target
3047 tc_gen_reloc (section
, fixp
)
3052 struct hppa_fix_struct
*hppa_fixp
;
3053 bfd_reloc_code_real_type code
;
3054 static arelent
*no_relocs
= NULL
;
3056 bfd_reloc_code_real_type
**codes
;
3060 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
3061 if (fixp
->fx_addsy
== 0)
3063 assert (hppa_fixp
!= 0);
3064 assert (section
!= 0);
3066 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
3068 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3069 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3070 codes
= (bfd_reloc_code_real_type
**) hppa_gen_reloc_type (stdoutput
,
3072 hppa_fixp
->fx_r_format
,
3073 hppa_fixp
->fx_r_field
,
3074 fixp
->fx_subsy
!= NULL
,
3075 symbol_get_bfdsym (fixp
->fx_addsy
));
3080 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
3083 relocs
= (arelent
**) xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
3084 reloc
= (arelent
*) xmalloc (sizeof (arelent
) * n_relocs
);
3085 for (i
= 0; i
< n_relocs
; i
++)
3086 relocs
[i
] = &reloc
[i
];
3088 relocs
[n_relocs
] = NULL
;
3091 switch (fixp
->fx_r_type
)
3094 assert (n_relocs
== 1);
3098 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3099 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3100 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3101 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3102 reloc
->addend
= 0; /* default */
3104 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
3106 /* Now, do any processing that is dependent on the relocation type. */
3109 case R_PARISC_DLTREL21L
:
3110 case R_PARISC_DLTREL14R
:
3111 case R_PARISC_DLTREL14F
:
3112 case R_PARISC_PLABEL32
:
3113 case R_PARISC_PLABEL21L
:
3114 case R_PARISC_PLABEL14R
:
3115 /* For plabel relocations, the addend of the
3116 relocation should be either 0 (no static link) or 2
3117 (static link required).
3119 FIXME: We always assume no static link!
3121 We also slam a zero addend into the DLT relative relocs;
3122 it doesn't make a lot of sense to use any addend since
3123 it gets you a different (eg unknown) DLT entry. */
3127 case R_PARISC_PCREL21L
:
3128 case R_PARISC_PCREL17R
:
3129 case R_PARISC_PCREL17F
:
3130 case R_PARISC_PCREL17C
:
3131 case R_PARISC_PCREL14R
:
3132 case R_PARISC_PCREL14F
:
3133 /* The constant is stored in the instruction. */
3134 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3137 reloc
->addend
= fixp
->fx_offset
;
3144 /* Walk over reach relocation returned by the BFD backend. */
3145 for (i
= 0; i
< n_relocs
; i
++)
3149 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3150 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3151 relocs
[i
]->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
3152 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3157 /* The only time we ever use a R_COMP2 fixup is for the difference
3158 of two symbols. With that in mind we fill in all four
3159 relocs now and break out of the loop. */
3161 relocs
[0]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3162 relocs
[0]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[0]);
3163 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3164 relocs
[0]->addend
= 0;
3165 relocs
[1]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3166 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
3167 relocs
[1]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[1]);
3168 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3169 relocs
[1]->addend
= 0;
3170 relocs
[2]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3171 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
3172 relocs
[2]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[2]);
3173 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3174 relocs
[2]->addend
= 0;
3175 relocs
[3]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3176 relocs
[3]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[3]);
3177 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3178 relocs
[3]->addend
= 0;
3179 relocs
[4]->sym_ptr_ptr
= (asymbol
**) &(bfd_abs_symbol
);
3180 relocs
[4]->howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[4]);
3181 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
3182 relocs
[4]->addend
= 0;
3186 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
3192 /* For plabel relocations, the addend of the
3193 relocation should be either 0 (no static link) or 2
3194 (static link required).
3196 FIXME: We always assume no static link!
3198 We also slam a zero addend into the DLT relative relocs;
3199 it doesn't make a lot of sense to use any addend since
3200 it gets you a different (eg unknown) DLT entry. */
3201 relocs
[i
]->addend
= 0;
3216 /* There is no symbol or addend associated with these fixups. */
3217 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3218 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3219 relocs
[i
]->addend
= 0;
3225 /* There is no symbol associated with these fixups. */
3226 relocs
[i
]->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
3227 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
3228 relocs
[i
]->addend
= fixp
->fx_offset
;
3232 relocs
[i
]->addend
= fixp
->fx_offset
;
3242 /* Process any machine dependent frag types. */
3245 md_convert_frag (abfd
, sec
, fragP
)
3247 register asection
*sec
;
3248 register fragS
*fragP
;
3250 unsigned int address
;
3252 if (fragP
->fr_type
== rs_machine_dependent
)
3254 switch ((int) fragP
->fr_subtype
)
3257 fragP
->fr_type
= rs_fill
;
3258 know (fragP
->fr_var
== 1);
3259 know (fragP
->fr_next
);
3260 address
= fragP
->fr_address
+ fragP
->fr_fix
;
3261 if (address
% fragP
->fr_offset
)
3264 fragP
->fr_next
->fr_address
3269 fragP
->fr_offset
= 0;
3275 /* Round up a section size to the appropriate boundary. */
3278 md_section_align (segment
, size
)
3282 int align
= bfd_get_section_alignment (stdoutput
, segment
);
3283 int align2
= (1 << align
) - 1;
3285 return (size
+ align2
) & ~align2
;
3288 /* Return the approximate size of a frag before relaxation has occurred. */
3290 md_estimate_size_before_relax (fragP
, segment
)
3291 register fragS
*fragP
;
3298 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
3304 CONST
char *md_shortopts
= "";
3305 struct option md_longopts
[] = {
3306 {NULL
, no_argument
, NULL
, 0}
3308 size_t md_longopts_size
= sizeof(md_longopts
);
3311 md_parse_option (c
, arg
)
3319 md_show_usage (stream
)
3324 /* We have no need to default values of symbols. */
3327 md_undefined_symbol (name
)
3333 /* Apply a fixup to an instruction. */
3336 md_apply_fix (fixP
, valp
)
3340 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3341 struct hppa_fix_struct
*hppa_fixP
;
3342 long new_val
, result
= 0;
3343 unsigned int w1
, w2
, w
, resulti
;
3345 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
3346 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3347 never be "applied" (they are just markers). Likewise for
3348 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3350 if (fixP
->fx_r_type
== R_HPPA_ENTRY
3351 || fixP
->fx_r_type
== R_HPPA_EXIT
3352 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
3353 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
3354 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
3357 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3358 fixups are considered not adjustable, which in turn causes
3359 adjust_reloc_syms to not set fx_offset. Ugh. */
3360 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
3362 fixP
->fx_offset
= *valp
;
3367 /* There should have been an HPPA specific fixup associated
3368 with the GAS fixup. */
3371 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3372 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3374 /* If there is a symbol associated with this fixup, then it's something
3375 which will need a SOM relocation (except for some PC-relative relocs).
3376 In such cases we should treat the "val" or "addend" as zero since it
3377 will be added in as needed from fx_offset in tc_gen_reloc. */
3378 if ((fixP
->fx_addsy
!= NULL
3379 || fixP
->fx_r_type
== R_HPPA_NONE
)
3384 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3386 /* These field selectors imply that we do not want an addend. */
3387 else if (hppa_fixP
->fx_r_field
== e_psel
3388 || hppa_fixP
->fx_r_field
== e_rpsel
3389 || hppa_fixP
->fx_r_field
== e_lpsel
3390 || hppa_fixP
->fx_r_field
== e_tsel
3391 || hppa_fixP
->fx_r_field
== e_rtsel
3392 || hppa_fixP
->fx_r_field
== e_ltsel
)
3393 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
3394 /* This is truely disgusting. The machine independent code blindly
3395 adds in the value of the symbol being relocated against. Damn! */
3397 && fixP
->fx_addsy
!= NULL
3398 && S_GET_SEGMENT (fixP
->fx_addsy
) != bfd_com_section_ptr
)
3399 new_val
= hppa_field_adjust (*valp
- S_GET_VALUE (fixP
->fx_addsy
),
3400 0, hppa_fixP
->fx_r_field
);
3403 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3405 /* Handle pc-relative exceptions from above. */
3406 #define arg_reloc_stub_needed(CALLER, CALLEE) \
3407 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3408 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
3412 && !arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
3413 symbol_get_bfdsym (fixP
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
3414 hppa_fixP
->fx_arg_reloc
)
3416 && (((int)(*valp
) > -262144 && (int)(*valp
) < 262143) && fmt
!= 22)
3417 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
3419 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
3421 new_val
= hppa_field_adjust (*valp
, 0, hppa_fixP
->fx_r_field
);
3422 #undef arg_reloc_stub_needed
3426 /* Handle all opcodes with the 'j' operand type. */
3428 CHECK_FIELD (new_val
, 8191, -8192, 0);
3430 /* Mask off 14 bits to be changed. */
3431 bfd_put_32 (stdoutput
,
3432 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3434 low_sign_unext (new_val
, 14, &resulti
);
3438 /* Handle all opcodes with the 'k' operand type. */
3440 CHECK_FIELD (new_val
, 2097152, 0, 0);
3442 /* Mask off 21 bits to be changed. */
3443 bfd_put_32 (stdoutput
,
3444 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3446 dis_assemble_21 (new_val
, &resulti
);
3450 /* Handle all the opcodes with the 'i' operand type. */
3452 CHECK_FIELD (new_val
, 1023, -1023, 0);
3454 /* Mask off 11 bits to be changed. */
3455 bfd_put_32 (stdoutput
,
3456 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3458 low_sign_unext (new_val
, 11, &resulti
);
3462 /* Handle all the opcodes with the 'w' operand type. */
3464 CHECK_FIELD (new_val
, 8199, -8184, 0);
3466 /* Mask off 11 bits to be changed. */
3467 sign_unext ((new_val
- 8) >> 2, 12, &resulti
);
3468 bfd_put_32 (stdoutput
,
3469 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3472 dis_assemble_12 (resulti
, &w1
, &w
);
3473 result
= ((w1
<< 2) | w
);
3476 /* Handle some of the opcodes with the 'W' operand type. */
3479 int distance
= *valp
;
3481 CHECK_FIELD (new_val
, 262143, -262144, 0);
3483 /* If this is an absolute branch (ie no link) with an out of
3484 range target, then we want to complain. */
3485 if (fixP
->fx_r_type
== R_HPPA_PCREL_CALL
3486 && (distance
> 262143 || distance
< -262144)
3487 && (bfd_get_32 (stdoutput
, buf
) & 0xffe00000) == 0xe8000000)
3488 CHECK_FIELD (distance
, 262143, -262144, 0);
3490 /* Mask off 17 bits to be changed. */
3491 bfd_put_32 (stdoutput
,
3492 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3494 sign_unext ((new_val
- 8) >> 2, 17, &resulti
);
3495 dis_assemble_17 (resulti
, &w1
, &w2
, &w
);
3496 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3502 bfd_put_32 (stdoutput
, new_val
, buf
);
3506 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3510 /* Insert the relocation. */
3511 bfd_put_32 (stdoutput
, bfd_get_32 (stdoutput
, buf
) | result
, buf
);
3516 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3517 (unsigned int) fixP
, fixP
->fx_r_type
);
3522 /* Exactly what point is a PC-relative offset relative TO?
3523 On the PA, they're relative to the address of the offset. */
3526 md_pcrel_from (fixP
)
3529 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3532 /* Return nonzero if the input line pointer is at the end of
3536 is_end_of_statement ()
3538 return ((*input_line_pointer
== '\n')
3539 || (*input_line_pointer
== ';')
3540 || (*input_line_pointer
== '!'));
3543 /* Read a number from S. The number might come in one of many forms,
3544 the most common will be a hex or decimal constant, but it could be
3545 a pre-defined register (Yuk!), or an absolute symbol.
3547 Return a number or -1 for failure.
3549 When parsing PA-89 FP register numbers RESULT will be
3550 the address of a structure to return information about
3551 L/R half of FP registers, store results there as appropriate.
3553 pa_parse_number can not handle negative constants and will fail
3554 horribly if it is passed such a constant. */
3557 pa_parse_number (s
, result
)
3559 struct pa_11_fp_reg_struct
*result
;
3568 /* Skip whitespace before the number. */
3569 while (*p
== ' ' || *p
== '\t')
3572 /* Store info in RESULT if requested by caller. */
3575 result
->number_part
= -1;
3576 result
->l_r_select
= -1;
3582 /* Looks like a number. */
3585 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3587 /* The number is specified in hex. */
3589 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3590 || ((*p
>= 'A') && (*p
<= 'F')))
3593 num
= num
* 16 + *p
- '0';
3594 else if (*p
>= 'a' && *p
<= 'f')
3595 num
= num
* 16 + *p
- 'a' + 10;
3597 num
= num
* 16 + *p
- 'A' + 10;
3603 /* The number is specified in decimal. */
3604 while (isdigit (*p
))
3606 num
= num
* 10 + *p
- '0';
3611 /* Store info in RESULT if requested by the caller. */
3614 result
->number_part
= num
;
3616 if (IS_R_SELECT (p
))
3618 result
->l_r_select
= 1;
3621 else if (IS_L_SELECT (p
))
3623 result
->l_r_select
= 0;
3627 result
->l_r_select
= 0;
3632 /* The number might be a predefined register. */
3637 /* Tege hack: Special case for general registers as the general
3638 code makes a binary search with case translation, and is VERY
3643 if (*p
== 'e' && *(p
+ 1) == 't'
3644 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3647 num
= *p
- '0' + 28;
3655 else if (!isdigit (*p
))
3658 as_bad (_("Undefined register: '%s'."), name
);
3664 num
= num
* 10 + *p
++ - '0';
3665 while (isdigit (*p
));
3670 /* Do a normal register search. */
3671 while (is_part_of_name (c
))
3677 status
= reg_name_search (name
);
3683 as_bad (_("Undefined register: '%s'."), name
);
3689 /* Store info in RESULT if requested by caller. */
3692 result
->number_part
= num
;
3693 if (IS_R_SELECT (p
- 1))
3694 result
->l_r_select
= 1;
3695 else if (IS_L_SELECT (p
- 1))
3696 result
->l_r_select
= 0;
3698 result
->l_r_select
= 0;
3703 /* And finally, it could be a symbol in the absolute section which
3704 is effectively a constant. */
3708 while (is_part_of_name (c
))
3714 if ((sym
= symbol_find (name
)) != NULL
)
3716 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3717 num
= S_GET_VALUE (sym
);
3721 as_bad (_("Non-absolute symbol: '%s'."), name
);
3727 /* There is where we'd come for an undefined symbol
3728 or for an empty string. For an empty string we
3729 will return zero. That's a concession made for
3730 compatability with the braindamaged HP assemblers. */
3736 as_bad (_("Undefined absolute constant: '%s'."), name
);
3742 /* Store info in RESULT if requested by caller. */
3745 result
->number_part
= num
;
3746 if (IS_R_SELECT (p
- 1))
3747 result
->l_r_select
= 1;
3748 else if (IS_L_SELECT (p
- 1))
3749 result
->l_r_select
= 0;
3751 result
->l_r_select
= 0;
3759 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3761 /* Given NAME, find the register number associated with that name, return
3762 the integer value associated with the given name or -1 on failure. */
3765 reg_name_search (name
)
3768 int middle
, low
, high
;
3772 high
= REG_NAME_CNT
- 1;
3776 middle
= (low
+ high
) / 2;
3777 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
3783 return pre_defined_registers
[middle
].value
;
3785 while (low
<= high
);
3791 /* Return nonzero if the given INSN and L/R information will require
3792 a new PA-1.1 opcode. */
3795 need_pa11_opcode (insn
, result
)
3797 struct pa_11_fp_reg_struct
*result
;
3799 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
3801 /* If this instruction is specific to a particular architecture,
3802 then set a new architecture. */
3803 if (bfd_get_mach (stdoutput
) < pa11
)
3805 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
3806 as_warn (_("could not update architecture and machine"));
3814 /* Parse a condition for a fcmp instruction. Return the numerical
3815 code associated with the condition. */
3818 pa_parse_fp_cmp_cond (s
)
3825 for (i
= 0; i
< 32; i
++)
3827 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
3828 strlen (fp_cond_map
[i
].string
)) == 0)
3830 cond
= fp_cond_map
[i
].cond
;
3831 *s
+= strlen (fp_cond_map
[i
].string
);
3832 /* If not a complete match, back up the input string and
3834 if (**s
!= ' ' && **s
!= '\t')
3836 *s
-= strlen (fp_cond_map
[i
].string
);
3839 while (**s
== ' ' || **s
== '\t')
3845 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
3847 /* Advance over the bogus completer. */
3848 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3855 /* Parse an FP operand format completer returning the completer
3858 static fp_operand_format
3859 pa_parse_fp_format (s
)
3868 if (strncasecmp (*s
, "sgl", 3) == 0)
3873 else if (strncasecmp (*s
, "dbl", 3) == 0)
3878 else if (strncasecmp (*s
, "quad", 4) == 0)
3885 format
= ILLEGAL_FMT
;
3886 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
3893 /* Convert from a selector string into a selector type. */
3896 pa_chk_field_selector (str
)
3899 int middle
, low
, high
;
3903 /* Read past any whitespace. */
3904 /* FIXME: should we read past newlines and formfeeds??? */
3905 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
3908 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
3909 name
[0] = tolower ((*str
)[0]),
3911 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
3912 name
[0] = tolower ((*str
)[0]),
3913 name
[1] = tolower ((*str
)[1]),
3915 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
3916 name
[0] = tolower ((*str
)[0]),
3917 name
[1] = tolower ((*str
)[1]),
3918 name
[2] = tolower ((*str
)[2]),
3924 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
3928 middle
= (low
+ high
) / 2;
3929 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
3936 *str
+= strlen (name
) + 1;
3938 if (selector_table
[middle
].field_selector
== e_nsel
)
3941 return selector_table
[middle
].field_selector
;
3944 while (low
<= high
);
3949 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
3952 get_expression (str
)
3958 save_in
= input_line_pointer
;
3959 input_line_pointer
= str
;
3960 seg
= expression (&the_insn
.exp
);
3961 if (!(seg
== absolute_section
3962 || seg
== undefined_section
3963 || SEG_NORMAL (seg
)))
3965 as_warn (_("Bad segment in expression."));
3966 expr_end
= input_line_pointer
;
3967 input_line_pointer
= save_in
;
3970 expr_end
= input_line_pointer
;
3971 input_line_pointer
= save_in
;
3975 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
3977 pa_get_absolute_expression (insn
, strp
)
3983 insn
->field_selector
= pa_chk_field_selector (strp
);
3984 save_in
= input_line_pointer
;
3985 input_line_pointer
= *strp
;
3986 expression (&insn
->exp
);
3987 /* This is not perfect, but is a huge improvement over doing nothing.
3989 The PA assembly syntax is ambigious in a variety of ways. Consider
3990 this string "4 %r5" Is that the number 4 followed by the register
3991 r5, or is that 4 MOD 5?
3993 If we get a modulo expresion When looking for an absolute, we try
3994 again cutting off the input string at the first whitespace character. */
3995 if (insn
->exp
.X_op
== O_modulus
)
4000 input_line_pointer
= *strp
;
4002 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4008 retval
= pa_get_absolute_expression (insn
, strp
);
4010 input_line_pointer
= save_in
;
4012 return evaluate_absolute (insn
);
4014 if (insn
->exp
.X_op
!= O_constant
)
4016 as_bad (_("Bad segment (should be absolute)."));
4017 expr_end
= input_line_pointer
;
4018 input_line_pointer
= save_in
;
4021 expr_end
= input_line_pointer
;
4022 input_line_pointer
= save_in
;
4023 return evaluate_absolute (insn
);
4026 /* Evaluate an absolute expression EXP which may be modified by
4027 the selector FIELD_SELECTOR. Return the value of the expression. */
4029 evaluate_absolute (insn
)
4034 int field_selector
= insn
->field_selector
;
4037 value
= exp
.X_add_number
;
4039 switch (field_selector
)
4045 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4047 if (value
& 0x00000400)
4049 value
= (value
& 0xfffff800) >> 11;
4052 /* Sign extend from bit 21. */
4054 if (value
& 0x00000400)
4055 value
|= 0xfffff800;
4060 /* Arithmetic shift right 11 bits. */
4062 value
= (value
& 0xfffff800) >> 11;
4065 /* Set bits 0-20 to zero. */
4067 value
= value
& 0x7ff;
4070 /* Add 0x800 and arithmetic shift right 11 bits. */
4073 value
= (value
& 0xfffff800) >> 11;
4076 /* Set bitgs 0-21 to one. */
4078 value
|= 0xfffff800;
4081 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
4083 value
= (RSEL_ROUND (value
) & 0x7ff) + (value
- RSEL_ROUND (value
));
4087 value
= (RSEL_ROUND (value
) >> 11) & 0x1fffff;
4092 BAD_CASE (field_selector
);
4098 /* Given an argument location specification return the associated
4099 argument location number. */
4102 pa_build_arg_reloc (type_name
)
4106 if (strncasecmp (type_name
, "no", 2) == 0)
4108 if (strncasecmp (type_name
, "gr", 2) == 0)
4110 else if (strncasecmp (type_name
, "fr", 2) == 0)
4112 else if (strncasecmp (type_name
, "fu", 2) == 0)
4115 as_bad (_("Invalid argument location: %s\n"), type_name
);
4120 /* Encode and return an argument relocation specification for
4121 the given register in the location specified by arg_reloc. */
4124 pa_align_arg_reloc (reg
, arg_reloc
)
4126 unsigned int arg_reloc
;
4128 unsigned int new_reloc
;
4130 new_reloc
= arg_reloc
;
4146 as_bad (_("Invalid argument description: %d"), reg
);
4152 /* Parse a PA nullification completer (,n). Return nonzero if the
4153 completer was found; return zero if no completer was found. */
4165 if (strncasecmp (*s
, "n", 1) == 0)
4169 as_bad (_("Invalid Nullification: (%c)"), **s
);
4178 /* Parse a non-negated compare/subtract completer returning the
4179 number (for encoding in instrutions) of the given completer.
4181 ISBRANCH specifies whether or not this is parsing a condition
4182 completer for a branch (vs a nullification completer for a
4183 computational instruction. */
4186 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
4191 char *name
= *s
+ 1;
4200 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4206 if (strcmp (name
, "=") == 0)
4210 else if (strcmp (name
, "<") == 0)
4214 else if (strcmp (name
, "<=") == 0)
4218 else if (strcmp (name
, "<<") == 0)
4222 else if (strcmp (name
, "<<=") == 0)
4226 else if (strcasecmp (name
, "sv") == 0)
4230 else if (strcasecmp (name
, "od") == 0)
4234 /* If we have something like addb,n then there is no condition
4236 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4248 /* Reset pointers if this was really a ,n for a branch instruction. */
4256 /* Parse a negated compare/subtract completer returning the
4257 number (for encoding in instrutions) of the given completer.
4259 ISBRANCH specifies whether or not this is parsing a condition
4260 completer for a branch (vs a nullification completer for a
4261 computational instruction. */
4264 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
4269 char *name
= *s
+ 1;
4278 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4284 if (strcasecmp (name
, "tr") == 0)
4288 else if (strcmp (name
, "<>") == 0)
4292 else if (strcmp (name
, ">=") == 0)
4296 else if (strcmp (name
, ">") == 0)
4300 else if (strcmp (name
, ">>=") == 0)
4304 else if (strcmp (name
, ">>") == 0)
4308 else if (strcasecmp (name
, "nsv") == 0)
4312 else if (strcasecmp (name
, "ev") == 0)
4316 /* If we have something like addb,n then there is no condition
4318 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4330 /* Reset pointers if this was really a ,n for a branch instruction. */
4339 /* Parse a non-negated addition completer returning the number
4340 (for encoding in instrutions) of the given completer.
4342 ISBRANCH specifies whether or not this is parsing a condition
4343 completer for a branch (vs a nullification completer for a
4344 computational instruction. */
4347 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
4352 char *name
= *s
+ 1;
4360 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4364 if (strcmp (name
, "=") == 0)
4368 else if (strcmp (name
, "<") == 0)
4372 else if (strcmp (name
, "<=") == 0)
4376 else if (strcasecmp (name
, "nuv") == 0)
4380 else if (strcasecmp (name
, "znv") == 0)
4384 else if (strcasecmp (name
, "sv") == 0)
4388 else if (strcasecmp (name
, "od") == 0)
4392 /* If we have something like addb,n then there is no condition
4394 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4405 /* Reset pointers if this was really a ,n for a branch instruction. */
4406 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4412 /* Parse a negated addition completer returning the number
4413 (for encoding in instrutions) of the given completer.
4415 ISBRANCH specifies whether or not this is parsing a condition
4416 completer for a branch (vs a nullification completer for a
4417 computational instruction). */
4420 pa_parse_neg_add_cmpltr (s
, isbranch
)
4425 char *name
= *s
+ 1;
4433 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4437 if (strcasecmp (name
, "tr") == 0)
4441 else if (strcmp (name
, "<>") == 0)
4445 else if (strcmp (name
, ">=") == 0)
4449 else if (strcmp (name
, ">") == 0)
4453 else if (strcasecmp (name
, "uv") == 0)
4457 else if (strcasecmp (name
, "vnz") == 0)
4461 else if (strcasecmp (name
, "nsv") == 0)
4465 else if (strcasecmp (name
, "ev") == 0)
4469 /* If we have something like addb,n then there is no condition
4471 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4482 /* Reset pointers if this was really a ,n for a branch instruction. */
4483 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4490 /* Handle an alignment directive. Special so that we can update the
4491 alignment of the subspace if necessary. */
4495 /* We must have a valid space and subspace. */
4496 pa_check_current_space_and_subspace ();
4498 /* Let the generic gas code do most of the work. */
4499 s_align_bytes (bytes
);
4501 /* If bytes is a power of 2, then update the current subspace's
4502 alignment if necessary. */
4503 if (log2 (bytes
) != -1)
4504 record_alignment (current_subspace
->ssd_seg
, log2 (bytes
));
4508 /* Handle a .BLOCK type pseudo-op. */
4516 unsigned int temp_size
;
4520 /* We must have a valid space and subspace. */
4521 pa_check_current_space_and_subspace ();
4524 temp_size
= get_absolute_expression ();
4526 /* Always fill with zeros, that's what the HP assembler does. */
4529 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4530 (relax_substateT
) 0, (symbolS
*) 0, (offsetT
) 1, NULL
);
4531 memset (p
, 0, temp_size
);
4533 /* Convert 2 bytes at a time. */
4535 for (i
= 0; i
< temp_size
; i
+= 2)
4537 md_number_to_chars (p
+ i
,
4539 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4542 pa_undefine_label ();
4543 demand_empty_rest_of_line ();
4546 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
4554 /* The BRTAB relocations are only availble in SOM (to denote
4555 the beginning and end of branch tables). */
4556 char *where
= frag_more (0);
4558 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4559 NULL
, (offsetT
) 0, NULL
,
4560 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
4561 e_fsel
, 0, 0, NULL
);
4564 demand_empty_rest_of_line ();
4567 /* Handle a .begin_try and .end_try pseudo-op. */
4575 char *where
= frag_more (0);
4580 /* The TRY relocations are only availble in SOM (to denote
4581 the beginning and end of exception handling regions). */
4583 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
4584 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
4585 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
4586 e_fsel
, 0, 0, NULL
);
4589 demand_empty_rest_of_line ();
4592 /* Handle a .CALL pseudo-op. This involves storing away information
4593 about where arguments are to be found so the linker can detect
4594 (and correct) argument location mismatches between caller and callee. */
4601 /* We must have a valid space and subspace. */
4602 pa_check_current_space_and_subspace ();
4605 pa_call_args (&last_call_desc
);
4606 demand_empty_rest_of_line ();
4609 /* Do the dirty work of building a call descriptor which describes
4610 where the caller placed arguments to a function call. */
4613 pa_call_args (call_desc
)
4614 struct call_desc
*call_desc
;
4617 unsigned int temp
, arg_reloc
;
4619 while (!is_end_of_statement ())
4621 name
= input_line_pointer
;
4622 c
= get_symbol_end ();
4623 /* Process a source argument. */
4624 if ((strncasecmp (name
, "argw", 4) == 0))
4626 temp
= atoi (name
+ 4);
4627 p
= input_line_pointer
;
4629 input_line_pointer
++;
4630 name
= input_line_pointer
;
4631 c
= get_symbol_end ();
4632 arg_reloc
= pa_build_arg_reloc (name
);
4633 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4635 /* Process a return value. */
4636 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4638 p
= input_line_pointer
;
4640 input_line_pointer
++;
4641 name
= input_line_pointer
;
4642 c
= get_symbol_end ();
4643 arg_reloc
= pa_build_arg_reloc (name
);
4644 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4648 as_bad (_("Invalid .CALL argument: %s"), name
);
4650 p
= input_line_pointer
;
4652 if (!is_end_of_statement ())
4653 input_line_pointer
++;
4657 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4660 is_same_frag (frag1
, frag2
)
4667 else if (frag2
== NULL
)
4669 else if (frag1
== frag2
)
4671 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4672 return (is_same_frag (frag1
, frag2
->fr_next
));
4678 /* Build an entry in the UNWIND subspace from the given function
4679 attributes in CALL_INFO. This is not needed for SOM as using
4680 R_ENTRY and R_EXIT relocations allow the linker to handle building
4681 of the unwind spaces. */
4684 pa_build_unwind_subspace (call_info
)
4685 struct call_info
*call_info
;
4688 asection
*seg
, *save_seg
;
4690 subsegT subseg
, save_subseg
;
4694 if (bfd_get_arch_info (stdoutput
)->bits_per_address
== 32)
4695 reloc
= R_PARISC_DIR32
;
4697 reloc
= R_PARISC_SEGREL32
;
4699 /* Get into the right seg/subseg. This may involve creating
4700 the seg the first time through. Make sure to have the
4701 old seg/subseg so that we can reset things when we are done. */
4702 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4703 if (seg
== ASEC_NULL
)
4705 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4706 bfd_set_section_flags (stdoutput
, seg
,
4707 SEC_READONLY
| SEC_HAS_CONTENTS
4708 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
4709 bfd_set_section_alignment (stdoutput
, seg
, 2);
4713 save_subseg
= now_subseg
;
4714 subseg_set (seg
, 0);
4717 /* Get some space to hold relocation information for the unwind
4720 md_number_to_chars (p
, 0, 4);
4722 /* Relocation info. for start offset of the function. */
4723 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4724 call_info
->start_symbol
, (offsetT
) 0,
4725 (expressionS
*) NULL
, 0, reloc
,
4726 e_fsel
, 32, 0, NULL
);
4729 md_number_to_chars (p
, 0, 4);
4731 /* Relocation info. for end offset of the function.
4733 Because we allow reductions of 32bit relocations for ELF, this will be
4734 reduced to section_sym + offset which avoids putting the temporary
4735 symbol into the symbol table. It (should) end up giving the same
4736 value as call_info->start_symbol + function size once the linker is
4737 finished with its work. */
4739 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4740 call_info
->end_symbol
, (offsetT
) 0,
4741 (expressionS
*) NULL
, 0, reloc
,
4742 e_fsel
, 32, 0, NULL
);
4745 unwind
= (char *) &call_info
->ci_unwind
;
4746 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4750 FRAG_APPEND_1_CHAR (c
);
4754 /* Return back to the original segment/subsegment. */
4755 subseg_set (save_seg
, save_subseg
);
4759 /* Process a .CALLINFO pseudo-op. This information is used later
4760 to build unwind descriptors and maybe one day to support
4761 .ENTER and .LEAVE. */
4764 pa_callinfo (unused
)
4771 /* We must have a valid space and subspace. */
4772 pa_check_current_space_and_subspace ();
4775 /* .CALLINFO must appear within a procedure definition. */
4776 if (!within_procedure
)
4777 as_bad (_(".callinfo is not within a procedure definition"));
4779 /* Mark the fact that we found the .CALLINFO for the
4780 current procedure. */
4781 callinfo_found
= TRUE
;
4783 /* Iterate over the .CALLINFO arguments. */
4784 while (!is_end_of_statement ())
4786 name
= input_line_pointer
;
4787 c
= get_symbol_end ();
4788 /* Frame size specification. */
4789 if ((strncasecmp (name
, "frame", 5) == 0))
4791 p
= input_line_pointer
;
4793 input_line_pointer
++;
4794 temp
= get_absolute_expression ();
4795 if ((temp
& 0x3) != 0)
4797 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
4801 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
4802 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
4805 /* Entry register (GR, GR and SR) specifications. */
4806 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
4808 p
= input_line_pointer
;
4810 input_line_pointer
++;
4811 temp
= get_absolute_expression ();
4812 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4813 even though %r19 is caller saved. I think this is a bug in
4814 the HP assembler, and we are not going to emulate it. */
4815 if (temp
< 3 || temp
> 18)
4816 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
4817 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
4819 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
4821 p
= input_line_pointer
;
4823 input_line_pointer
++;
4824 temp
= get_absolute_expression ();
4825 /* Similarly the HP assembler takes 31 as the high bound even
4826 though %fr21 is the last callee saved floating point register. */
4827 if (temp
< 12 || temp
> 21)
4828 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
4829 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
4831 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
4833 p
= input_line_pointer
;
4835 input_line_pointer
++;
4836 temp
= get_absolute_expression ();
4838 as_bad (_("Value for ENTRY_SR must be 3\n"));
4840 /* Note whether or not this function performs any calls. */
4841 else if ((strncasecmp (name
, "calls", 5) == 0) ||
4842 (strncasecmp (name
, "caller", 6) == 0))
4844 p
= input_line_pointer
;
4847 else if ((strncasecmp (name
, "no_calls", 8) == 0))
4849 p
= input_line_pointer
;
4852 /* Should RP be saved into the stack. */
4853 else if ((strncasecmp (name
, "save_rp", 7) == 0))
4855 p
= input_line_pointer
;
4857 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
4859 /* Likewise for SP. */
4860 else if ((strncasecmp (name
, "save_sp", 7) == 0))
4862 p
= input_line_pointer
;
4864 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
4866 /* Is this an unwindable procedure. If so mark it so
4867 in the unwind descriptor. */
4868 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
4870 p
= input_line_pointer
;
4872 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
4874 /* Is this an interrupt routine. If so mark it in the
4875 unwind descriptor. */
4876 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
4878 p
= input_line_pointer
;
4880 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
4882 /* Is this a millicode routine. "millicode" isn't in my
4883 assembler manual, but my copy is old. The HP assembler
4884 accepts it, and there's a place in the unwind descriptor
4885 to drop the information, so we'll accept it too. */
4886 else if ((strncasecmp (name
, "millicode", 9) == 0))
4888 p
= input_line_pointer
;
4890 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
4894 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
4895 *input_line_pointer
= c
;
4897 if (!is_end_of_statement ())
4898 input_line_pointer
++;
4901 demand_empty_rest_of_line ();
4904 /* Switch into the code subspace. */
4911 current_space
= is_defined_space ("$TEXT$");
4913 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
4916 pa_undefine_label ();
4919 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4920 the .comm pseudo-op has the following symtax:
4922 <label> .comm <length>
4924 where <label> is optional and is a symbol whose address will be the start of
4925 a block of memory <length> bytes long. <length> must be an absolute
4926 expression. <length> bytes will be allocated in the current space
4929 Also note the label may not even be on the same line as the .comm.
4931 This difference in syntax means the colon function will be called
4932 on the symbol before we arrive in pa_comm. colon will set a number
4933 of attributes of the symbol that need to be fixed here. In particular
4934 the value, section pointer, fragment pointer, flags, etc. What
4937 This also makes error detection all but impossible. */
4945 label_symbol_struct
*label_symbol
= pa_get_label ();
4948 symbol
= label_symbol
->lss_label
;
4953 size
= get_absolute_expression ();
4957 S_SET_VALUE (symbol
, size
);
4958 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
4959 S_SET_EXTERNAL (symbol
);
4961 /* colon() has already set the frag to the current location in the
4962 current subspace; we need to reset the fragment to the zero address
4963 fragment. We also need to reset the segment pointer. */
4964 symbol_set_frag (symbol
, &zero_address_frag
);
4966 demand_empty_rest_of_line ();
4969 /* Process a .END pseudo-op. */
4975 demand_empty_rest_of_line ();
4978 /* Process a .ENTER pseudo-op. This is not supported. */
4984 /* We must have a valid space and subspace. */
4985 pa_check_current_space_and_subspace ();
4988 as_bad (_("The .ENTER pseudo-op is not supported"));
4989 demand_empty_rest_of_line ();
4992 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4999 /* We must have a valid space and subspace. */
5000 pa_check_current_space_and_subspace ();
5003 if (!within_procedure
)
5004 as_bad (_("Misplaced .entry. Ignored."));
5007 if (!callinfo_found
)
5008 as_bad (_("Missing .callinfo."));
5010 demand_empty_rest_of_line ();
5011 within_entry_exit
= TRUE
;
5014 /* SOM defers building of unwind descriptors until the link phase.
5015 The assembler is responsible for creating an R_ENTRY relocation
5016 to mark the beginning of a region and hold the unwind bits, and
5017 for creating an R_EXIT relocation to mark the end of the region.
5019 FIXME. ELF should be using the same conventions! The problem
5020 is an unwind requires too much relocation space. Hmmm. Maybe
5021 if we split the unwind bits up between the relocations which
5022 denote the entry and exit points. */
5023 if (last_call_info
->start_symbol
!= NULL
)
5025 char *where
= frag_more (0);
5027 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5028 NULL
, (offsetT
) 0, NULL
,
5029 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5030 (int *) &last_call_info
->ci_unwind
.descriptor
);
5035 /* Handle a .EQU pseudo-op. */
5041 label_symbol_struct
*label_symbol
= pa_get_label ();
5046 symbol
= label_symbol
->lss_label
;
5048 S_SET_VALUE (symbol
, pa_parse_number (&input_line_pointer
, 0));
5050 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
5051 S_SET_SEGMENT (symbol
, bfd_abs_section_ptr
);
5056 as_bad (_(".REG must use a label"));
5058 as_bad (_(".EQU must use a label"));
5061 pa_undefine_label ();
5062 demand_empty_rest_of_line ();
5065 /* Helper function. Does processing for the end of a function. This
5066 usually involves creating some relocations or building special
5067 symbols to mark the end of the function. */
5074 where
= frag_more (0);
5077 /* Mark the end of the function, stuff away the location of the frag
5078 for the end of the function, and finally call pa_build_unwind_subspace
5079 to add an entry in the unwind table. */
5080 hppa_elf_mark_end_of_function ();
5081 pa_build_unwind_subspace (last_call_info
);
5083 /* SOM defers building of unwind descriptors until the link phase.
5084 The assembler is responsible for creating an R_ENTRY relocation
5085 to mark the beginning of a region and hold the unwind bits, and
5086 for creating an R_EXIT relocation to mark the end of the region.
5088 FIXME. ELF should be using the same conventions! The problem
5089 is an unwind requires too much relocation space. Hmmm. Maybe
5090 if we split the unwind bits up between the relocations which
5091 denote the entry and exit points. */
5092 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5094 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
5095 (int *) &last_call_info
->ci_unwind
.descriptor
+ 1);
5099 /* Process a .EXIT pseudo-op. */
5106 /* We must have a valid space and subspace. */
5107 pa_check_current_space_and_subspace ();
5110 if (!within_procedure
)
5111 as_bad (_(".EXIT must appear within a procedure"));
5114 if (!callinfo_found
)
5115 as_bad (_("Missing .callinfo"));
5118 if (!within_entry_exit
)
5119 as_bad (_("No .ENTRY for this .EXIT"));
5122 within_entry_exit
= FALSE
;
5127 demand_empty_rest_of_line ();
5130 /* Process a .EXPORT directive. This makes functions external
5131 and provides information such as argument relocation entries
5141 name
= input_line_pointer
;
5142 c
= get_symbol_end ();
5143 /* Make sure the given symbol exists. */
5144 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5146 as_bad (_("Cannot define export symbol: %s\n"), name
);
5147 p
= input_line_pointer
;
5149 input_line_pointer
++;
5153 /* OK. Set the external bits and process argument relocations. */
5154 S_SET_EXTERNAL (symbol
);
5155 p
= input_line_pointer
;
5157 if (!is_end_of_statement ())
5159 input_line_pointer
++;
5160 pa_type_args (symbol
, 1);
5164 demand_empty_rest_of_line ();
5167 /* Helper function to process arguments to a .EXPORT pseudo-op. */
5170 pa_type_args (symbolP
, is_export
)
5175 unsigned int temp
, arg_reloc
;
5176 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
5177 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbol_get_bfdsym (symbolP
);
5179 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
5182 input_line_pointer
+= 8;
5183 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5184 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
5185 type
= SYMBOL_TYPE_ABSOLUTE
;
5187 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
5189 input_line_pointer
+= 4;
5190 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5191 instead one should be IMPORTing/EXPORTing ENTRY types.
5193 Complain if one tries to EXPORT a CODE type since that's never
5194 done. Both GCC and HP C still try to IMPORT CODE types, so
5195 silently fix them to be ENTRY types. */
5196 if (S_IS_FUNCTION (symbolP
))
5199 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5200 S_GET_NAME (symbolP
));
5202 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5203 type
= SYMBOL_TYPE_ENTRY
;
5207 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5208 type
= SYMBOL_TYPE_CODE
;
5211 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
5213 input_line_pointer
+= 4;
5214 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5215 type
= SYMBOL_TYPE_DATA
;
5217 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
5219 input_line_pointer
+= 5;
5220 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5221 type
= SYMBOL_TYPE_ENTRY
;
5223 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
5225 input_line_pointer
+= 9;
5226 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5227 type
= SYMBOL_TYPE_MILLICODE
;
5229 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
5231 input_line_pointer
+= 6;
5232 symbol_get_bfdsym (symbolP
)->flags
&= ~BSF_FUNCTION
;
5233 type
= SYMBOL_TYPE_PLABEL
;
5235 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
5237 input_line_pointer
+= 8;
5238 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5239 type
= SYMBOL_TYPE_PRI_PROG
;
5241 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
5243 input_line_pointer
+= 8;
5244 symbol_get_bfdsym (symbolP
)->flags
|= BSF_FUNCTION
;
5245 type
= SYMBOL_TYPE_SEC_PROG
;
5248 /* SOM requires much more information about symbol types
5249 than BFD understands. This is how we get this information
5250 to the SOM BFD backend. */
5251 #ifdef obj_set_symbol_type
5252 obj_set_symbol_type (symbol_get_bfdsym (symbolP
), (int) type
);
5255 /* Now that the type of the exported symbol has been handled,
5256 handle any argument relocation information. */
5257 while (!is_end_of_statement ())
5259 if (*input_line_pointer
== ',')
5260 input_line_pointer
++;
5261 name
= input_line_pointer
;
5262 c
= get_symbol_end ();
5263 /* Argument sources. */
5264 if ((strncasecmp (name
, "argw", 4) == 0))
5266 p
= input_line_pointer
;
5268 input_line_pointer
++;
5269 temp
= atoi (name
+ 4);
5270 name
= input_line_pointer
;
5271 c
= get_symbol_end ();
5272 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
5274 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5276 *input_line_pointer
= c
;
5278 /* The return value. */
5279 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
5281 p
= input_line_pointer
;
5283 input_line_pointer
++;
5284 name
= input_line_pointer
;
5285 c
= get_symbol_end ();
5286 arg_reloc
= pa_build_arg_reloc (name
);
5288 symbol
->tc_data
.ap
.hppa_arg_reloc
|= arg_reloc
;
5290 *input_line_pointer
= c
;
5292 /* Privelege level. */
5293 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
5295 p
= input_line_pointer
;
5297 input_line_pointer
++;
5298 temp
= atoi (input_line_pointer
);
5300 symbol
->tc_data
.ap
.hppa_priv_level
= temp
;
5302 c
= get_symbol_end ();
5303 *input_line_pointer
= c
;
5307 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
5308 p
= input_line_pointer
;
5311 if (!is_end_of_statement ())
5312 input_line_pointer
++;
5316 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5317 assembly file must either be defined in the assembly file, or
5318 explicitly IMPORTED from another. */
5327 name
= input_line_pointer
;
5328 c
= get_symbol_end ();
5330 symbol
= symbol_find (name
);
5331 /* Ugh. We might be importing a symbol defined earlier in the file,
5332 in which case all the code below will really screw things up
5333 (set the wrong segment, symbol flags & type, etc). */
5334 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
5336 symbol
= symbol_find_or_make (name
);
5337 p
= input_line_pointer
;
5340 if (!is_end_of_statement ())
5342 input_line_pointer
++;
5343 pa_type_args (symbol
, 0);
5347 /* Sigh. To be compatable with the HP assembler and to help
5348 poorly written assembly code, we assign a type based on
5349 the the current segment. Note only BSF_FUNCTION really
5350 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5351 if (now_seg
== text_section
)
5352 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
5354 /* If the section is undefined, then the symbol is undefined
5355 Since this is an import, leave the section undefined. */
5356 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
5361 /* The symbol was already defined. Just eat everything up to
5362 the end of the current statement. */
5363 while (!is_end_of_statement ())
5364 input_line_pointer
++;
5367 demand_empty_rest_of_line ();
5370 /* Handle a .LABEL pseudo-op. */
5378 name
= input_line_pointer
;
5379 c
= get_symbol_end ();
5381 if (strlen (name
) > 0)
5384 p
= input_line_pointer
;
5389 as_warn (_("Missing label name on .LABEL"));
5392 if (!is_end_of_statement ())
5394 as_warn (_("extra .LABEL arguments ignored."));
5395 ignore_rest_of_line ();
5397 demand_empty_rest_of_line ();
5400 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
5407 /* We must have a valid space and subspace. */
5408 pa_check_current_space_and_subspace ();
5411 as_bad (_("The .LEAVE pseudo-op is not supported"));
5412 demand_empty_rest_of_line ();
5415 /* Handle a .LEVEL pseudo-op. */
5423 level
= input_line_pointer
;
5424 if (strncmp (level
, "1.0", 3) == 0)
5426 input_line_pointer
+= 3;
5427 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
5428 as_warn (_("could not set architecture and machine"));
5430 else if (strncmp (level
, "1.1", 3) == 0)
5432 input_line_pointer
+= 3;
5433 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
5434 as_warn (_("could not set architecture and machine"));
5436 else if (strncmp (level
, "2.0w", 4) == 0)
5438 input_line_pointer
+= 4;
5439 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
5440 as_warn (_("could not set architecture and machine"));
5442 else if (strncmp (level
, "2.0", 3) == 0)
5444 input_line_pointer
+= 3;
5445 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
5446 as_warn (_("could not set architecture and machine"));
5450 as_bad (_("Unrecognized .LEVEL argument\n"));
5451 ignore_rest_of_line ();
5453 demand_empty_rest_of_line ();
5456 /* Handle a .ORIGIN pseudo-op. */
5463 /* We must have a valid space and subspace. */
5464 pa_check_current_space_and_subspace ();
5468 pa_undefine_label ();
5471 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5472 is for static functions. FIXME. Should share more code with .EXPORT. */
5481 name
= input_line_pointer
;
5482 c
= get_symbol_end ();
5484 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
5486 as_bad (_("Cannot define static symbol: %s\n"), name
);
5487 p
= input_line_pointer
;
5489 input_line_pointer
++;
5493 S_CLEAR_EXTERNAL (symbol
);
5494 p
= input_line_pointer
;
5496 if (!is_end_of_statement ())
5498 input_line_pointer
++;
5499 pa_type_args (symbol
, 0);
5503 demand_empty_rest_of_line ();
5506 /* Handle a .PROC pseudo-op. It is used to mark the beginning
5507 of a procedure from a syntatical point of view. */
5513 struct call_info
*call_info
;
5516 /* We must have a valid space and subspace. */
5517 pa_check_current_space_and_subspace ();
5520 if (within_procedure
)
5521 as_fatal (_("Nested procedures"));
5523 /* Reset global variables for new procedure. */
5524 callinfo_found
= FALSE
;
5525 within_procedure
= TRUE
;
5527 /* Create another call_info structure. */
5528 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
5531 as_fatal (_("Cannot allocate unwind descriptor\n"));
5533 memset (call_info
, 0, sizeof (struct call_info
));
5535 call_info
->ci_next
= NULL
;
5537 if (call_info_root
== NULL
)
5539 call_info_root
= call_info
;
5540 last_call_info
= call_info
;
5544 last_call_info
->ci_next
= call_info
;
5545 last_call_info
= call_info
;
5548 /* set up defaults on call_info structure */
5550 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
5551 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
5552 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
5554 /* If we got a .PROC pseudo-op, we know that the function is defined
5555 locally. Make sure it gets into the symbol table. */
5557 label_symbol_struct
*label_symbol
= pa_get_label ();
5561 if (label_symbol
->lss_label
)
5563 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5564 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
5567 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5570 last_call_info
->start_symbol
= NULL
;
5573 demand_empty_rest_of_line ();
5576 /* Process the syntatical end of a procedure. Make sure all the
5577 appropriate pseudo-ops were found within the procedure. */
5585 /* We must have a valid space and subspace. */
5586 pa_check_current_space_and_subspace ();
5589 /* If we are within a procedure definition, make sure we've
5590 defined a label for the procedure; handle case where the
5591 label was defined after the .PROC directive.
5593 Note there's not need to diddle with the segment or fragment
5594 for the label symbol in this case. We have already switched
5595 into the new $CODE$ subspace at this point. */
5596 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5598 label_symbol_struct
*label_symbol
= pa_get_label ();
5602 if (label_symbol
->lss_label
)
5604 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5605 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5608 /* Also handle allocation of a fixup to hold the unwind
5609 information when the label appears after the proc/procend. */
5610 if (within_entry_exit
)
5612 char *where
= frag_more (0);
5614 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5615 NULL
, (offsetT
) 0, NULL
,
5616 0, R_HPPA_ENTRY
, e_fsel
, 0, 0,
5617 (int *) &last_call_info
->ci_unwind
.descriptor
);
5622 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5625 as_bad (_("Missing function name for .PROC"));
5628 if (!within_procedure
)
5629 as_bad (_("misplaced .procend"));
5631 if (!callinfo_found
)
5632 as_bad (_("Missing .callinfo for this procedure"));
5634 if (within_entry_exit
)
5635 as_bad (_("Missing .EXIT for a .ENTRY"));
5638 /* ELF needs to mark the end of each function so that it can compute
5639 the size of the function (apparently its needed in the symbol table). */
5640 hppa_elf_mark_end_of_function ();
5643 within_procedure
= FALSE
;
5644 demand_empty_rest_of_line ();
5645 pa_undefine_label ();
5648 /* If VALUE is an exact power of two between zero and 2^31, then
5649 return log2 (VALUE). Else return -1. */
5657 while ((1 << shift
) != value
&& shift
< 32)
5668 /* Check to make sure we have a valid space and subspace. */
5671 pa_check_current_space_and_subspace ()
5673 if (current_space
== NULL
)
5674 as_fatal (_("Not in a space.\n"));
5676 if (current_subspace
== NULL
)
5677 as_fatal (_("Not in a subspace.\n"));
5680 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5681 then create a new space entry to hold the information specified
5682 by the parameters to the .SPACE directive. */
5684 static sd_chain_struct
*
5685 pa_parse_space_stmt (space_name
, create_flag
)
5689 char *name
, *ptemp
, c
;
5690 char loadable
, defined
, private, sort
;
5692 asection
*seg
= NULL
;
5693 sd_chain_struct
*space
;
5695 /* load default values */
5701 if (strcmp (space_name
, "$TEXT$") == 0)
5703 seg
= pa_def_spaces
[0].segment
;
5704 defined
= pa_def_spaces
[0].defined
;
5705 private = pa_def_spaces
[0].private;
5706 sort
= pa_def_spaces
[0].sort
;
5707 spnum
= pa_def_spaces
[0].spnum
;
5709 else if (strcmp (space_name
, "$PRIVATE$") == 0)
5711 seg
= pa_def_spaces
[1].segment
;
5712 defined
= pa_def_spaces
[1].defined
;
5713 private = pa_def_spaces
[1].private;
5714 sort
= pa_def_spaces
[1].sort
;
5715 spnum
= pa_def_spaces
[1].spnum
;
5718 if (!is_end_of_statement ())
5720 print_errors
= FALSE
;
5721 ptemp
= input_line_pointer
+ 1;
5722 /* First see if the space was specified as a number rather than
5723 as a name. According to the PA assembly manual the rest of
5724 the line should be ignored. */
5725 temp
= pa_parse_number (&ptemp
, 0);
5729 input_line_pointer
= ptemp
;
5733 while (!is_end_of_statement ())
5735 input_line_pointer
++;
5736 name
= input_line_pointer
;
5737 c
= get_symbol_end ();
5738 if ((strncasecmp (name
, "spnum", 5) == 0))
5740 *input_line_pointer
= c
;
5741 input_line_pointer
++;
5742 spnum
= get_absolute_expression ();
5744 else if ((strncasecmp (name
, "sort", 4) == 0))
5746 *input_line_pointer
= c
;
5747 input_line_pointer
++;
5748 sort
= get_absolute_expression ();
5750 else if ((strncasecmp (name
, "unloadable", 10) == 0))
5752 *input_line_pointer
= c
;
5755 else if ((strncasecmp (name
, "notdefined", 10) == 0))
5757 *input_line_pointer
= c
;
5760 else if ((strncasecmp (name
, "private", 7) == 0))
5762 *input_line_pointer
= c
;
5767 as_bad (_("Invalid .SPACE argument"));
5768 *input_line_pointer
= c
;
5769 if (!is_end_of_statement ())
5770 input_line_pointer
++;
5774 print_errors
= TRUE
;
5777 if (create_flag
&& seg
== NULL
)
5778 seg
= subseg_new (space_name
, 0);
5780 /* If create_flag is nonzero, then create the new space with
5781 the attributes computed above. Else set the values in
5782 an already existing space -- this can only happen for
5783 the first occurence of a built-in space. */
5785 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
5786 private, sort
, seg
, 1);
5789 space
= is_defined_space (space_name
);
5790 SPACE_SPNUM (space
) = spnum
;
5791 SPACE_DEFINED (space
) = defined
& 1;
5792 SPACE_USER_DEFINED (space
) = 1;
5795 #ifdef obj_set_section_attributes
5796 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
5802 /* Handle a .SPACE pseudo-op; this switches the current space to the
5803 given space, creating the new space if necessary. */
5809 char *name
, c
, *space_name
, *save_s
;
5811 sd_chain_struct
*sd_chain
;
5813 if (within_procedure
)
5815 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
5816 ignore_rest_of_line ();
5820 /* Check for some of the predefined spaces. FIXME: most of the code
5821 below is repeated several times, can we extract the common parts
5822 and place them into a subroutine or something similar? */
5823 /* FIXME Is this (and the next IF stmt) really right?
5824 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5825 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
5827 input_line_pointer
+= 6;
5828 sd_chain
= is_defined_space ("$TEXT$");
5829 if (sd_chain
== NULL
)
5830 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
5831 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5832 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
5834 current_space
= sd_chain
;
5835 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
5837 = pa_subsegment_to_subspace (text_section
,
5838 sd_chain
->sd_last_subseg
);
5839 demand_empty_rest_of_line ();
5842 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
5844 input_line_pointer
+= 9;
5845 sd_chain
= is_defined_space ("$PRIVATE$");
5846 if (sd_chain
== NULL
)
5847 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
5848 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5849 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
5851 current_space
= sd_chain
;
5852 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
5854 = pa_subsegment_to_subspace (data_section
,
5855 sd_chain
->sd_last_subseg
);
5856 demand_empty_rest_of_line ();
5859 if (!strncasecmp (input_line_pointer
,
5860 GDB_DEBUG_SPACE_NAME
,
5861 strlen (GDB_DEBUG_SPACE_NAME
)))
5863 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
5864 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
5865 if (sd_chain
== NULL
)
5866 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
5867 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5868 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
5870 current_space
= sd_chain
;
5873 asection
*gdb_section
5874 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
5876 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
5878 = pa_subsegment_to_subspace (gdb_section
,
5879 sd_chain
->sd_last_subseg
);
5881 demand_empty_rest_of_line ();
5885 /* It could be a space specified by number. */
5887 save_s
= input_line_pointer
;
5888 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
5890 if ((sd_chain
= pa_find_space_by_number (temp
)))
5892 current_space
= sd_chain
;
5894 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5896 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5897 sd_chain
->sd_last_subseg
);
5898 demand_empty_rest_of_line ();
5903 /* Not a number, attempt to create a new space. */
5905 input_line_pointer
= save_s
;
5906 name
= input_line_pointer
;
5907 c
= get_symbol_end ();
5908 space_name
= xmalloc (strlen (name
) + 1);
5909 strcpy (space_name
, name
);
5910 *input_line_pointer
= c
;
5912 sd_chain
= pa_parse_space_stmt (space_name
, 1);
5913 current_space
= sd_chain
;
5915 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5916 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5917 sd_chain
->sd_last_subseg
);
5918 demand_empty_rest_of_line ();
5922 /* Switch to a new space. (I think). FIXME. */
5931 sd_chain_struct
*space
;
5933 name
= input_line_pointer
;
5934 c
= get_symbol_end ();
5935 space
= is_defined_space (name
);
5939 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
5942 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
5944 *input_line_pointer
= c
;
5945 demand_empty_rest_of_line ();
5948 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
5949 given subspace, creating the new subspace if necessary.
5951 FIXME. Should mirror pa_space more closely, in particular how
5952 they're broken up into subroutines. */
5955 pa_subspace (create_new
)
5958 char *name
, *ss_name
, c
;
5959 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
5960 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
5961 sd_chain_struct
*space
;
5962 ssd_chain_struct
*ssd
;
5965 if (current_space
== NULL
)
5966 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
5968 if (within_procedure
)
5970 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
5971 ignore_rest_of_line ();
5975 name
= input_line_pointer
;
5976 c
= get_symbol_end ();
5977 ss_name
= xmalloc (strlen (name
) + 1);
5978 strcpy (ss_name
, name
);
5979 *input_line_pointer
= c
;
5981 /* Load default values. */
5993 space
= current_space
;
5997 ssd
= is_defined_subspace (ss_name
);
5998 /* Allow user to override the builtin attributes of subspaces. But
5999 only allow the attributes to be changed once! */
6000 if (ssd
&& SUBSPACE_DEFINED (ssd
))
6002 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
6003 current_subspace
= ssd
;
6004 if (!is_end_of_statement ())
6005 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6006 demand_empty_rest_of_line ();
6011 /* A new subspace. Load default values if it matches one of
6012 the builtin subspaces. */
6014 while (pa_def_subspaces
[i
].name
)
6016 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
6018 loadable
= pa_def_subspaces
[i
].loadable
;
6019 common
= pa_def_subspaces
[i
].common
;
6020 dup_common
= pa_def_subspaces
[i
].dup_common
;
6021 code_only
= pa_def_subspaces
[i
].code_only
;
6022 zero
= pa_def_subspaces
[i
].zero
;
6023 space_index
= pa_def_subspaces
[i
].space_index
;
6024 alignment
= pa_def_subspaces
[i
].alignment
;
6025 quadrant
= pa_def_subspaces
[i
].quadrant
;
6026 access
= pa_def_subspaces
[i
].access
;
6027 sort
= pa_def_subspaces
[i
].sort
;
6034 /* We should be working with a new subspace now. Fill in
6035 any information as specified by the user. */
6036 if (!is_end_of_statement ())
6038 input_line_pointer
++;
6039 while (!is_end_of_statement ())
6041 name
= input_line_pointer
;
6042 c
= get_symbol_end ();
6043 if ((strncasecmp (name
, "quad", 4) == 0))
6045 *input_line_pointer
= c
;
6046 input_line_pointer
++;
6047 quadrant
= get_absolute_expression ();
6049 else if ((strncasecmp (name
, "align", 5) == 0))
6051 *input_line_pointer
= c
;
6052 input_line_pointer
++;
6053 alignment
= get_absolute_expression ();
6054 if (log2 (alignment
) == -1)
6056 as_bad (_("Alignment must be a power of 2"));
6060 else if ((strncasecmp (name
, "access", 6) == 0))
6062 *input_line_pointer
= c
;
6063 input_line_pointer
++;
6064 access
= get_absolute_expression ();
6066 else if ((strncasecmp (name
, "sort", 4) == 0))
6068 *input_line_pointer
= c
;
6069 input_line_pointer
++;
6070 sort
= get_absolute_expression ();
6072 else if ((strncasecmp (name
, "code_only", 9) == 0))
6074 *input_line_pointer
= c
;
6077 else if ((strncasecmp (name
, "unloadable", 10) == 0))
6079 *input_line_pointer
= c
;
6082 else if ((strncasecmp (name
, "common", 6) == 0))
6084 *input_line_pointer
= c
;
6087 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
6089 *input_line_pointer
= c
;
6092 else if ((strncasecmp (name
, "zero", 4) == 0))
6094 *input_line_pointer
= c
;
6097 else if ((strncasecmp (name
, "first", 5) == 0))
6098 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
6100 as_bad (_("Invalid .SUBSPACE argument"));
6101 if (!is_end_of_statement ())
6102 input_line_pointer
++;
6106 /* Compute a reasonable set of BFD flags based on the information
6107 in the .subspace directive. */
6108 applicable
= bfd_applicable_section_flags (stdoutput
);
6111 flags
|= (SEC_ALLOC
| SEC_LOAD
);
6114 if (common
|| dup_common
)
6115 flags
|= SEC_IS_COMMON
;
6117 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
6119 /* This is a zero-filled subspace (eg BSS). */
6121 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
6123 applicable
&= flags
;
6125 /* If this is an existing subspace, then we want to use the
6126 segment already associated with the subspace.
6128 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6129 lots of sections. It might be a problem in the PA ELF
6130 code, I do not know yet. For now avoid creating anything
6131 but the "standard" sections for ELF. */
6133 section
= subseg_force_new (ss_name
, 0);
6135 section
= ssd
->ssd_seg
;
6137 section
= subseg_new (ss_name
, 0);
6140 seg_info (section
)->bss
= 1;
6142 /* Now set the flags. */
6143 bfd_set_section_flags (stdoutput
, section
, applicable
);
6145 /* Record any alignment request for this section. */
6146 record_alignment (section
, log2 (alignment
));
6148 /* Set the starting offset for this section. */
6149 bfd_set_section_vma (stdoutput
, section
,
6150 pa_subspace_start (space
, quadrant
));
6152 /* Now that all the flags are set, update an existing subspace,
6153 or create a new one. */
6156 current_subspace
= update_subspace (space
, ss_name
, loadable
,
6157 code_only
, common
, dup_common
,
6158 sort
, zero
, access
, space_index
,
6159 alignment
, quadrant
,
6162 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
6164 dup_common
, zero
, sort
,
6165 access
, space_index
,
6166 alignment
, quadrant
, section
);
6168 demand_empty_rest_of_line ();
6169 current_subspace
->ssd_seg
= section
;
6170 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
6172 SUBSPACE_DEFINED (current_subspace
) = 1;
6176 /* Create default space and subspace dictionaries. */
6183 space_dict_root
= NULL
;
6184 space_dict_last
= NULL
;
6187 while (pa_def_spaces
[i
].name
)
6191 /* Pick the right name to use for the new section. */
6192 name
= pa_def_spaces
[i
].name
;
6194 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
6195 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
6196 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
6197 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
6198 pa_def_spaces
[i
].segment
, 0);
6203 while (pa_def_subspaces
[i
].name
)
6206 int applicable
, subsegment
;
6207 asection
*segment
= NULL
;
6208 sd_chain_struct
*space
;
6210 /* Pick the right name for the new section and pick the right
6211 subsegment number. */
6212 name
= pa_def_subspaces
[i
].name
;
6215 /* Create the new section. */
6216 segment
= subseg_new (name
, subsegment
);
6219 /* For SOM we want to replace the standard .text, .data, and .bss
6220 sections with our own. We also want to set BFD flags for
6221 all the built-in subspaces. */
6222 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
6224 text_section
= segment
;
6225 applicable
= bfd_applicable_section_flags (stdoutput
);
6226 bfd_set_section_flags (stdoutput
, segment
,
6227 applicable
& (SEC_ALLOC
| SEC_LOAD
6228 | SEC_RELOC
| SEC_CODE
6230 | SEC_HAS_CONTENTS
));
6232 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
6234 data_section
= segment
;
6235 applicable
= bfd_applicable_section_flags (stdoutput
);
6236 bfd_set_section_flags (stdoutput
, segment
,
6237 applicable
& (SEC_ALLOC
| SEC_LOAD
6239 | SEC_HAS_CONTENTS
));
6243 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
6245 bss_section
= segment
;
6246 applicable
= bfd_applicable_section_flags (stdoutput
);
6247 bfd_set_section_flags (stdoutput
, segment
,
6248 applicable
& SEC_ALLOC
);
6250 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
6252 applicable
= bfd_applicable_section_flags (stdoutput
);
6253 bfd_set_section_flags (stdoutput
, segment
,
6254 applicable
& (SEC_ALLOC
| SEC_LOAD
6257 | SEC_HAS_CONTENTS
));
6259 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
6261 applicable
= bfd_applicable_section_flags (stdoutput
);
6262 bfd_set_section_flags (stdoutput
, segment
,
6263 applicable
& (SEC_ALLOC
| SEC_LOAD
6266 | SEC_HAS_CONTENTS
));
6268 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
6270 applicable
= bfd_applicable_section_flags (stdoutput
);
6271 bfd_set_section_flags (stdoutput
, segment
,
6272 applicable
& (SEC_ALLOC
| SEC_LOAD
6275 | SEC_HAS_CONTENTS
));
6278 /* Find the space associated with this subspace. */
6279 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
6280 def_space_index
].segment
);
6283 as_fatal (_("Internal error: Unable to find containing space for %s."),
6284 pa_def_subspaces
[i
].name
);
6287 create_new_subspace (space
, name
,
6288 pa_def_subspaces
[i
].loadable
,
6289 pa_def_subspaces
[i
].code_only
,
6290 pa_def_subspaces
[i
].common
,
6291 pa_def_subspaces
[i
].dup_common
,
6292 pa_def_subspaces
[i
].zero
,
6293 pa_def_subspaces
[i
].sort
,
6294 pa_def_subspaces
[i
].access
,
6295 pa_def_subspaces
[i
].space_index
,
6296 pa_def_subspaces
[i
].alignment
,
6297 pa_def_subspaces
[i
].quadrant
,
6305 /* Create a new space NAME, with the appropriate flags as defined
6306 by the given parameters. */
6308 static sd_chain_struct
*
6309 create_new_space (name
, spnum
, loadable
, defined
, private,
6310 sort
, seg
, user_defined
)
6320 sd_chain_struct
*chain_entry
;
6322 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
6324 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6327 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6328 strcpy (SPACE_NAME (chain_entry
), name
);
6329 SPACE_DEFINED (chain_entry
) = defined
;
6330 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
6331 SPACE_SPNUM (chain_entry
) = spnum
;
6333 chain_entry
->sd_seg
= seg
;
6334 chain_entry
->sd_last_subseg
= -1;
6335 chain_entry
->sd_subspaces
= NULL
;
6336 chain_entry
->sd_next
= NULL
;
6338 /* Find spot for the new space based on its sort key. */
6339 if (!space_dict_last
)
6340 space_dict_last
= chain_entry
;
6342 if (space_dict_root
== NULL
)
6343 space_dict_root
= chain_entry
;
6346 sd_chain_struct
*chain_pointer
;
6347 sd_chain_struct
*prev_chain_pointer
;
6349 chain_pointer
= space_dict_root
;
6350 prev_chain_pointer
= NULL
;
6352 while (chain_pointer
)
6354 prev_chain_pointer
= chain_pointer
;
6355 chain_pointer
= chain_pointer
->sd_next
;
6358 /* At this point we've found the correct place to add the new
6359 entry. So add it and update the linked lists as appropriate. */
6360 if (prev_chain_pointer
)
6362 chain_entry
->sd_next
= chain_pointer
;
6363 prev_chain_pointer
->sd_next
= chain_entry
;
6367 space_dict_root
= chain_entry
;
6368 chain_entry
->sd_next
= chain_pointer
;
6371 if (chain_entry
->sd_next
== NULL
)
6372 space_dict_last
= chain_entry
;
6375 /* This is here to catch predefined spaces which do not get
6376 modified by the user's input. Another call is found at
6377 the bottom of pa_parse_space_stmt to handle cases where
6378 the user modifies a predefined space. */
6379 #ifdef obj_set_section_attributes
6380 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
6386 /* Create a new subspace NAME, with the appropriate flags as defined
6387 by the given parameters.
6389 Add the new subspace to the subspace dictionary chain in numerical
6390 order as defined by the SORT entries. */
6392 static ssd_chain_struct
*
6393 create_new_subspace (space
, name
, loadable
, code_only
, common
,
6394 dup_common
, is_zero
, sort
, access
, space_index
,
6395 alignment
, quadrant
, seg
)
6396 sd_chain_struct
*space
;
6398 int loadable
, code_only
, common
, dup_common
, is_zero
;
6406 ssd_chain_struct
*chain_entry
;
6408 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
6410 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
6412 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
6413 strcpy (SUBSPACE_NAME (chain_entry
), name
);
6415 /* Initialize subspace_defined. When we hit a .subspace directive
6416 we'll set it to 1 which "locks-in" the subspace attributes. */
6417 SUBSPACE_DEFINED (chain_entry
) = 0;
6419 chain_entry
->ssd_subseg
= 0;
6420 chain_entry
->ssd_seg
= seg
;
6421 chain_entry
->ssd_next
= NULL
;
6423 /* Find spot for the new subspace based on its sort key. */
6424 if (space
->sd_subspaces
== NULL
)
6425 space
->sd_subspaces
= chain_entry
;
6428 ssd_chain_struct
*chain_pointer
;
6429 ssd_chain_struct
*prev_chain_pointer
;
6431 chain_pointer
= space
->sd_subspaces
;
6432 prev_chain_pointer
= NULL
;
6434 while (chain_pointer
)
6436 prev_chain_pointer
= chain_pointer
;
6437 chain_pointer
= chain_pointer
->ssd_next
;
6440 /* Now we have somewhere to put the new entry. Insert it and update
6442 if (prev_chain_pointer
)
6444 chain_entry
->ssd_next
= chain_pointer
;
6445 prev_chain_pointer
->ssd_next
= chain_entry
;
6449 space
->sd_subspaces
= chain_entry
;
6450 chain_entry
->ssd_next
= chain_pointer
;
6454 #ifdef obj_set_subsection_attributes
6455 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
,
6462 /* Update the information for the given subspace based upon the
6463 various arguments. Return the modified subspace chain entry. */
6465 static ssd_chain_struct
*
6466 update_subspace (space
, name
, loadable
, code_only
, common
, dup_common
, sort
,
6467 zero
, access
, space_index
, alignment
, quadrant
, section
)
6468 sd_chain_struct
*space
;
6482 ssd_chain_struct
*chain_entry
;
6484 chain_entry
= is_defined_subspace (name
);
6486 #ifdef obj_set_subsection_attributes
6487 obj_set_subsection_attributes (section
, space
->sd_seg
, access
,
6494 /* Return the space chain entry for the space with the name NAME or
6495 NULL if no such space exists. */
6497 static sd_chain_struct
*
6498 is_defined_space (name
)
6501 sd_chain_struct
*chain_pointer
;
6503 for (chain_pointer
= space_dict_root
;
6505 chain_pointer
= chain_pointer
->sd_next
)
6507 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
6508 return chain_pointer
;
6511 /* No mapping from segment to space was found. Return NULL. */
6515 /* Find and return the space associated with the given seg. If no mapping
6516 from the given seg to a space is found, then return NULL.
6518 Unlike subspaces, the number of spaces is not expected to grow much,
6519 so a linear exhaustive search is OK here. */
6521 static sd_chain_struct
*
6522 pa_segment_to_space (seg
)
6525 sd_chain_struct
*space_chain
;
6527 /* Walk through each space looking for the correct mapping. */
6528 for (space_chain
= space_dict_root
;
6530 space_chain
= space_chain
->sd_next
)
6532 if (space_chain
->sd_seg
== seg
)
6536 /* Mapping was not found. Return NULL. */
6540 /* Return the space chain entry for the subspace with the name NAME or
6541 NULL if no such subspace exists.
6543 Uses a linear search through all the spaces and subspaces, this may
6544 not be appropriate if we ever being placing each function in its
6547 static ssd_chain_struct
*
6548 is_defined_subspace (name
)
6551 sd_chain_struct
*space_chain
;
6552 ssd_chain_struct
*subspace_chain
;
6554 /* Walk through each space. */
6555 for (space_chain
= space_dict_root
;
6557 space_chain
= space_chain
->sd_next
)
6559 /* Walk through each subspace looking for a name which matches. */
6560 for (subspace_chain
= space_chain
->sd_subspaces
;
6562 subspace_chain
= subspace_chain
->ssd_next
)
6563 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
6564 return subspace_chain
;
6567 /* Subspace wasn't found. Return NULL. */
6571 /* Find and return the subspace associated with the given seg. If no
6572 mapping from the given seg to a subspace is found, then return NULL.
6574 If we ever put each procedure/function within its own subspace
6575 (to make life easier on the compiler and linker), then this will have
6576 to become more efficient. */
6578 static ssd_chain_struct
*
6579 pa_subsegment_to_subspace (seg
, subseg
)
6583 sd_chain_struct
*space_chain
;
6584 ssd_chain_struct
*subspace_chain
;
6586 /* Walk through each space. */
6587 for (space_chain
= space_dict_root
;
6589 space_chain
= space_chain
->sd_next
)
6591 if (space_chain
->sd_seg
== seg
)
6593 /* Walk through each subspace within each space looking for
6594 the correct mapping. */
6595 for (subspace_chain
= space_chain
->sd_subspaces
;
6597 subspace_chain
= subspace_chain
->ssd_next
)
6598 if (subspace_chain
->ssd_subseg
== (int) subseg
)
6599 return subspace_chain
;
6603 /* No mapping from subsegment to subspace found. Return NULL. */
6607 /* Given a number, try and find a space with the name number.
6609 Return a pointer to a space dictionary chain entry for the space
6610 that was found or NULL on failure. */
6612 static sd_chain_struct
*
6613 pa_find_space_by_number (number
)
6616 sd_chain_struct
*space_chain
;
6618 for (space_chain
= space_dict_root
;
6620 space_chain
= space_chain
->sd_next
)
6622 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
6626 /* No appropriate space found. Return NULL. */
6630 /* Return the starting address for the given subspace. If the starting
6631 address is unknown then return zero. */
6634 pa_subspace_start (space
, quadrant
)
6635 sd_chain_struct
*space
;
6638 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6639 is not correct for the PA OSF1 port. */
6640 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
6642 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
6649 /* FIXME. Needs documentation. */
6651 pa_next_subseg (space
)
6652 sd_chain_struct
*space
;
6655 space
->sd_last_subseg
++;
6656 return space
->sd_last_subseg
;
6660 /* Helper function for pa_stringer. Used to find the end of
6667 unsigned int c
= *s
& CHAR_MASK
;
6670 /* We must have a valid space and subspace. */
6671 pa_check_current_space_and_subspace ();
6685 /* Handle a .STRING type pseudo-op. */
6688 pa_stringer (append_zero
)
6691 char *s
, num_buf
[4];
6695 /* Preprocess the string to handle PA-specific escape sequences.
6696 For example, \xDD where DD is a hexidecimal number should be
6697 changed to \OOO where OOO is an octal number. */
6699 /* Skip the opening quote. */
6700 s
= input_line_pointer
+ 1;
6702 while (is_a_char (c
= pa_stringer_aux (s
++)))
6709 /* Handle \x<num>. */
6712 unsigned int number
;
6717 /* Get pas the 'x'. */
6719 for (num_digit
= 0, number
= 0, dg
= *s
;
6721 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6722 || (dg
>= 'A' && dg
<= 'F'));
6726 number
= number
* 16 + dg
- '0';
6727 else if (dg
>= 'a' && dg
<= 'f')
6728 number
= number
* 16 + dg
- 'a' + 10;
6730 number
= number
* 16 + dg
- 'A' + 10;
6740 sprintf (num_buf
, "%02o", number
);
6743 sprintf (num_buf
, "%03o", number
);
6746 for (i
= 0; i
<= num_digit
; i
++)
6747 s_start
[i
] = num_buf
[i
];
6751 /* This might be a "\"", skip over the escaped char. */
6758 stringer (append_zero
);
6759 pa_undefine_label ();
6762 /* Handle a .VERSION pseudo-op. */
6769 pa_undefine_label ();
6774 /* Handle a .COMPILER pseudo-op. */
6777 pa_compiler (unused
)
6780 obj_som_compiler (0);
6781 pa_undefine_label ();
6786 /* Handle a .COPYRIGHT pseudo-op. */
6789 pa_copyright (unused
)
6793 pa_undefine_label ();
6796 /* Just like a normal cons, but when finished we have to undefine
6797 the latest space label. */
6804 pa_undefine_label ();
6807 /* Switch to the data space. As usual delete our label. */
6814 current_space
= is_defined_space ("$PRIVATE$");
6816 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6819 pa_undefine_label ();
6822 /* Like float_cons, but we need to undefine our label. */
6825 pa_float_cons (float_type
)
6828 float_cons (float_type
);
6829 pa_undefine_label ();
6832 /* Like s_fill, but delete our label when finished. */
6839 /* We must have a valid space and subspace. */
6840 pa_check_current_space_and_subspace ();
6844 pa_undefine_label ();
6847 /* Like lcomm, but delete our label when finished. */
6850 pa_lcomm (needs_align
)
6854 /* We must have a valid space and subspace. */
6855 pa_check_current_space_and_subspace ();
6858 s_lcomm (needs_align
);
6859 pa_undefine_label ();
6862 /* Like lsym, but delete our label when finished. */
6869 /* We must have a valid space and subspace. */
6870 pa_check_current_space_and_subspace ();
6874 pa_undefine_label ();
6877 /* Switch to the text space. Like s_text, but delete our
6878 label when finished. */
6884 current_space
= is_defined_space ("$TEXT$");
6886 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6890 pa_undefine_label ();
6893 /* On the PA relocations which involve function symbols must not be
6894 adjusted. This so that the linker can know when/how to create argument
6895 relocation stubs for indirect calls and calls to static functions.
6897 "T" field selectors create DLT relative fixups for accessing
6898 globals and statics in PIC code; each DLT relative fixup creates
6899 an entry in the DLT table. The entries contain the address of
6900 the final target (eg accessing "foo" would create a DLT entry
6901 with the address of "foo").
6903 Unfortunately, the HP linker doesn't take into account any addend
6904 when generating the DLT; so accessing $LIT$+8 puts the address of
6905 $LIT$ into the DLT rather than the address of $LIT$+8.
6907 The end result is we can't perform relocation symbol reductions for
6908 any fixup which creates entries in the DLT (eg they use "T" field
6911 Reject reductions involving symbols with external scope; such
6912 reductions make life a living hell for object file editors.
6914 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6915 the code space. The SOM BFD backend doesn't know how to pull the
6916 right bits out of an instruction. */
6919 hppa_fix_adjustable (fixp
)
6922 struct hppa_fix_struct
*hppa_fix
;
6924 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6927 /* Reject reductions of symbols in 32bit relocs. */
6928 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
6931 /* Reject reductions of symbols in sym1-sym2 expressions when
6932 the fixup will occur in a CODE subspace.
6934 XXX FIXME: Long term we probably want to reject all of these;
6935 for example reducing in the debug section would lose if we ever
6936 supported using the optimizing hp linker. */
6939 && (hppa_fix
->segment
->flags
& SEC_CODE
))
6941 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
6942 symbol_mark_used_in_reloc (fixp
->fx_subsy
);
6946 /* We can't adjust any relocs that use LR% and RR% field selectors.
6947 That confuses the HP linker. */
6948 if (hppa_fix
->fx_r_field
== e_lrsel
6949 || hppa_fix
->fx_r_field
== e_rrsel
6950 || hppa_fix
->fx_r_field
== e_nlrsel
)
6954 /* Reject reductions of symbols in DLT relative relocs,
6955 relocations with plabels. */
6956 if (hppa_fix
->fx_r_field
== e_tsel
6957 || hppa_fix
->fx_r_field
== e_ltsel
6958 || hppa_fix
->fx_r_field
== e_rtsel
6959 || hppa_fix
->fx_r_field
== e_psel
6960 || hppa_fix
->fx_r_field
== e_rpsel
6961 || hppa_fix
->fx_r_field
== e_lpsel
)
6964 if (fixp
->fx_addsy
&& S_IS_EXTERNAL (fixp
->fx_addsy
))
6967 /* Reject absolute calls (jumps). */
6968 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
6971 /* Reject reductions of function symbols. */
6972 if (fixp
->fx_addsy
== 0 || ! S_IS_FUNCTION (fixp
->fx_addsy
))
6978 /* Return nonzero if the fixup in FIXP will require a relocation,
6979 even it if appears that the fixup could be completely handled
6983 hppa_force_relocation (fixp
)
6986 struct hppa_fix_struct
*hppa_fixp
;
6989 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
6991 if (fixp
->fx_r_type
== R_HPPA_ENTRY
|| fixp
->fx_r_type
== R_HPPA_EXIT
6992 || fixp
->fx_r_type
== R_HPPA_BEGIN_BRTAB
6993 || fixp
->fx_r_type
== R_HPPA_END_BRTAB
6994 || fixp
->fx_r_type
== R_HPPA_BEGIN_TRY
6995 || fixp
->fx_r_type
== R_HPPA_END_TRY
6996 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
6997 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
7001 #define arg_reloc_stub_needed(CALLER, CALLEE) \
7002 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7005 /* It is necessary to force PC-relative calls/jumps to have a relocation
7006 entry if they're going to need either a argument relocation or long
7007 call stub. FIXME. Can't we need the same for absolute calls? */
7008 if (fixp
->fx_pcrel
&& fixp
->fx_addsy
7009 && (arg_reloc_stub_needed ((long) ((obj_symbol_type
*)
7010 symbol_get_bfdsym (fixp
->fx_addsy
))->tc_data
.ap
.hppa_arg_reloc
,
7011 hppa_fixp
->fx_arg_reloc
)))
7014 distance
= (fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
)
7015 - md_pcrel_from (fixp
));
7016 /* Now check and see if we're going to need a long-branch stub. */
7017 if (fixp
->fx_r_type
== R_HPPA_PCREL_CALL
7018 && (distance
> 262143 || distance
< -262144))
7021 if (fixp
->fx_r_type
== R_HPPA_ABS_CALL
)
7023 #undef arg_reloc_stub_needed
7025 /* No need (yet) to force another relocations to be emitted. */
7029 /* Now for some ELF specific code. FIXME. */
7031 /* Mark the end of a function so that it's possible to compute
7032 the size of the function in hppa_elf_final_processing. */
7035 hppa_elf_mark_end_of_function ()
7037 /* ELF does not have EXIT relocations. All we do is create a
7038 temporary symbol marking the end of the function. */
7039 char *name
= (char *)
7040 xmalloc (strlen ("L$\001end_") +
7041 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
7047 strcpy (name
, "L$\001end_");
7048 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
7050 /* If we have a .exit followed by a .procend, then the
7051 symbol will have already been defined. */
7052 symbolP
= symbol_find (name
);
7055 /* The symbol has already been defined! This can
7056 happen if we have a .exit followed by a .procend.
7058 This is *not* an error. All we want to do is free
7059 the memory we just allocated for the name and continue. */
7064 /* symbol value should be the offset of the
7065 last instruction of the function */
7066 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
7070 S_CLEAR_EXTERNAL (symbolP
);
7071 symbol_table_insert (symbolP
);
7075 last_call_info
->end_symbol
= symbolP
;
7077 as_bad (_("Symbol '%s' could not be created."), name
);
7081 as_bad (_("No memory for symbol name."));
7085 /* For ELF, this function serves one purpose: to setup the st_size
7086 field of STT_FUNC symbols. To do this, we need to scan the
7087 call_info structure list, determining st_size in by taking the
7088 difference in the address of the beginning/end marker symbols. */
7091 elf_hppa_final_processing ()
7093 struct call_info
*call_info_pointer
;
7095 for (call_info_pointer
= call_info_root
;
7097 call_info_pointer
= call_info_pointer
->ci_next
)
7099 elf_symbol_type
*esym
7100 = ((elf_symbol_type
*)
7101 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
7102 esym
->internal_elf_sym
.st_size
=
7103 S_GET_VALUE (call_info_pointer
->end_symbol
)
7104 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;