1 /* tc-hppa.c -- Assemble for the PA
2 Copyright (C) 1989, 93, 94, 95, 96, 97, 98, 1999
3 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 /* HP PA-RISC support was contributed by the Center for Software Science
24 at the University of Utah. */
32 #include "bfd/libhppa.h"
33 #include "bfd/libbfd.h"
35 /* Be careful, this file includes data *declarations*. */
36 #include "opcode/hppa.h"
38 #if defined (OBJ_ELF) && defined (OBJ_SOM)
39 error only one of OBJ_ELF and OBJ_SOM can be defined
42 /* If we are using ELF, then we probably can support dwarf2 debug
43 records. Furthermore, if we are supporting dwarf2 debug records,
44 then we want to use the assembler support for compact line numbers. */
46 #include "dwarf2dbg.h"
47 struct dwarf2_line_info debug_line;
50 /* A "convient" place to put object file dependencies which do
51 not need to be seen outside of tc-hppa.c. */
53 /* Object file formats specify relocation types. */
54 typedef elf_hppa_reloc_type reloc_type;
56 /* Object file formats specify BFD symbol types. */
57 typedef elf_symbol_type obj_symbol_type;
60 /* How to generate a relocation. */
61 #define hppa_gen_reloc_type _bfd_elf64_hppa_gen_reloc_type
63 #define hppa_gen_reloc_type _bfd_elf32_hppa_gen_reloc_type
66 /* ELF objects can have versions, but apparently do not have anywhere
67 to store a copyright string. */
68 #define obj_version obj_elf_version
69 #define obj_copyright obj_elf_version
71 #define UNWIND_SECTION_NAME ".PARISC.unwind"
75 /* Names of various debugging spaces/subspaces. */
76 #define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
77 #define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
78 #define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
79 #define UNWIND_SECTION_NAME "$UNWIND$"
81 /* Object file formats specify relocation types. */
82 typedef int reloc_type;
84 /* SOM objects can have both a version string and a copyright string. */
85 #define obj_version obj_som_version
86 #define obj_copyright obj_som_copyright
88 /* How to generate a relocation. */
89 #define hppa_gen_reloc_type hppa_som_gen_reloc_type
91 /* Object file formats specify BFD symbol types. */
92 typedef som_symbol_type obj_symbol_type;
94 /* This apparently isn't in older versions of hpux reloc.h. */
96 #define R_DLT_REL 0x78
108 /* Various structures and types used internally in tc-hppa.c. */
110 /* Unwind table and descriptor. FIXME: Sync this with GDB version. */
114 unsigned int cannot_unwind:1;
115 unsigned int millicode:1;
116 unsigned int millicode_save_rest:1;
117 unsigned int region_desc:2;
118 unsigned int save_sr:2;
119 unsigned int entry_fr:4;
120 unsigned int entry_gr:5;
121 unsigned int args_stored:1;
122 unsigned int call_fr:5;
123 unsigned int call_gr:5;
124 unsigned int save_sp:1;
125 unsigned int save_rp:1;
126 unsigned int save_rp_in_frame:1;
127 unsigned int extn_ptr_defined:1;
128 unsigned int cleanup_defined:1;
130 unsigned int hpe_interrupt_marker:1;
131 unsigned int hpux_interrupt_marker:1;
132 unsigned int reserved:3;
133 unsigned int frame_size:27;
138 /* Starting and ending offsets of the region described by
140 unsigned int start_offset;
141 unsigned int end_offset;
142 struct unwind_desc descriptor;
145 /* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
146 control the entry and exit code they generate. It is also used in
147 creation of the correct stack unwind descriptors.
149 NOTE: GAS does not support .enter and .leave for the generation of
150 prologues and epilogues. FIXME.
152 The fields in structure roughly correspond to the arguments available on the
153 .callinfo pseudo-op. */
157 /* The unwind descriptor being built. */
158 struct unwind_table ci_unwind;
160 /* Name of this function. */
161 symbolS *start_symbol;
163 /* (temporary) symbol used to mark the end of this function. */
166 /* Next entry in the chain. */
167 struct call_info *ci_next;
170 /* Operand formats for FP instructions. Note not all FP instructions
171 allow all four formats to be used (for example fmpysub only allows
175 SGL, DBL, ILLEGAL_FMT, QUAD, W, UW, DW, UDW, QW, UQW
179 /* This fully describes the symbol types which may be attached to
180 an EXPORT or IMPORT directive. Only SOM uses this formation
181 (ELF has no need for it). */
185 SYMBOL_TYPE_ABSOLUTE,
189 SYMBOL_TYPE_MILLICODE,
191 SYMBOL_TYPE_PRI_PROG,
192 SYMBOL_TYPE_SEC_PROG,
196 /* This structure contains information needed to assemble
197 individual instructions. */
200 /* Holds the opcode after parsing by pa_ip. */
201 unsigned long opcode;
203 /* Holds an expression associated with the current instruction. */
206 /* Does this instruction use PC-relative addressing. */
209 /* Floating point formats for operand1 and operand2. */
210 fp_operand_format fpof1;
211 fp_operand_format fpof2;
213 /* Whether or not we saw a truncation request on an fcnv insn. */
216 /* Holds the field selector for this instruction
217 (for example L%, LR%, etc). */
220 /* Holds any argument relocation bits associated with this
221 instruction. (instruction should be some sort of call). */
224 /* The format specification for this instruction. */
227 /* The relocation (if any) associated with this instruction. */
231 /* PA-89 floating point registers are arranged like this:
234 +--------------+--------------+
235 | 0 or 16L | 16 or 16R |
236 +--------------+--------------+
237 | 1 or 17L | 17 or 17R |
238 +--------------+--------------+
246 +--------------+--------------+
247 | 14 or 30L | 30 or 30R |
248 +--------------+--------------+
249 | 15 or 31L | 31 or 31R |
250 +--------------+--------------+
253 The following is a version of pa_parse_number that
254 handles the L/R notation and returns the correct
255 value to put into the instruction register field.
256 The correct value to put into the instruction is
257 encoded in the structure 'pa_11_fp_reg_struct'. */
259 struct pa_11_fp_reg_struct
261 /* The register number. */
268 /* Additional information needed to build argument relocation stubs. */
271 /* The argument relocation specification. */
272 unsigned int arg_reloc;
274 /* Number of arguments. */
275 unsigned int arg_count;
279 /* This structure defines an entry in the subspace dictionary
282 struct subspace_dictionary_chain
284 /* Nonzero if this space has been defined by the user code. */
285 unsigned int ssd_defined;
287 /* Name of this subspace. */
290 /* GAS segment and subsegment associated with this subspace. */
294 /* Next space in the subspace dictionary chain. */
295 struct subspace_dictionary_chain *ssd_next;
298 typedef struct subspace_dictionary_chain ssd_chain_struct;
300 /* This structure defines an entry in the subspace dictionary
303 struct space_dictionary_chain
305 /* Nonzero if this space has been defined by the user code or
306 as a default space. */
307 unsigned int sd_defined;
309 /* Nonzero if this spaces has been defined by the user code. */
310 unsigned int sd_user_defined;
312 /* The space number (or index). */
313 unsigned int sd_spnum;
315 /* The name of this subspace. */
318 /* GAS segment to which this subspace corresponds. */
321 /* Current subsegment number being used. */
324 /* The chain of subspaces contained within this space. */
325 ssd_chain_struct *sd_subspaces;
327 /* The next entry in the space dictionary chain. */
328 struct space_dictionary_chain *sd_next;
331 typedef struct space_dictionary_chain sd_chain_struct;
333 /* This structure defines attributes of the default subspace
334 dictionary entries. */
336 struct default_subspace_dict
338 /* Name of the subspace. */
341 /* FIXME. Is this still needed? */
344 /* Nonzero if this subspace is loadable. */
347 /* Nonzero if this subspace contains only code. */
350 /* Nonzero if this is a common subspace. */
353 /* Nonzero if this is a common subspace which allows symbols
354 to be multiply defined. */
357 /* Nonzero if this subspace should be zero filled. */
360 /* Sort key for this subspace. */
363 /* Access control bits for this subspace. Can represent RWX access
364 as well as privilege level changes for gateways. */
367 /* Index of containing space. */
370 /* Alignment (in bytes) of this subspace. */
373 /* Quadrant within space where this subspace should be loaded. */
376 /* An index into the default spaces array. */
379 /* Subsegment associated with this subspace. */
383 /* This structure defines attributes of the default space
384 dictionary entries. */
386 struct default_space_dict
388 /* Name of the space. */
391 /* Space number. It is possible to identify spaces within
392 assembly code numerically! */
395 /* Nonzero if this space is loadable. */
398 /* Nonzero if this space is "defined". FIXME is still needed */
401 /* Nonzero if this space can not be shared. */
404 /* Sort key for this space. */
407 /* Segment associated with this space. */
412 /* Structure for previous label tracking. Needed so that alignments,
413 callinfo declarations, etc can be easily attached to a particular
415 typedef struct label_symbol_struct
417 struct symbol *lss_label;
419 sd_chain_struct *lss_space;
424 struct label_symbol_struct *lss_next;
428 /* Extra information needed to perform fixups (relocations) on the PA. */
429 struct hppa_fix_struct
431 /* The field selector. */
432 enum hppa_reloc_field_selector_type_alt fx_r_field;
437 /* Format of fixup. */
440 /* Argument relocation bits. */
443 /* The segment this fixup appears in. */
447 /* Structure to hold information about predefined registers. */
455 /* This structure defines the mapping from a FP condition string
456 to a condition number which can be recorded in an instruction. */
463 /* This structure defines a mapping from a field selector
464 string to a field selector type. */
465 struct selector_entry
471 /* Prototypes for functions local to tc-hppa.c. */
474 static void pa_check_current_space_and_subspace PARAMS ((void));
477 static fp_operand_format pa_parse_fp_format PARAMS ((char **s));
478 static void pa_cons PARAMS ((int));
479 static void pa_data PARAMS ((int));
480 static void pa_float_cons PARAMS ((int));
481 static void pa_fill PARAMS ((int));
482 static void pa_lcomm PARAMS ((int));
483 static void pa_lsym PARAMS ((int));
484 static void pa_stringer PARAMS ((int));
485 static void pa_text PARAMS ((int));
486 static void pa_version PARAMS ((int));
487 static int pa_parse_fp_cmp_cond PARAMS ((char **));
488 static int get_expression PARAMS ((char *));
489 static int pa_get_absolute_expression PARAMS ((struct pa_it *, char **));
490 static int evaluate_absolute PARAMS ((struct pa_it *));
491 static unsigned int pa_build_arg_reloc PARAMS ((char *));
492 static unsigned int pa_align_arg_reloc PARAMS ((unsigned int, unsigned int));
493 static int pa_parse_nullif PARAMS ((char **));
494 static int pa_parse_nonneg_cmpsub_cmpltr PARAMS ((char **, int));
495 static int pa_parse_neg_cmpsub_cmpltr PARAMS ((char **, int));
496 static int pa_parse_neg_add_cmpltr PARAMS ((char **, int));
497 static int pa_parse_nonneg_add_cmpltr PARAMS ((char **, int));
498 static void pa_block PARAMS ((int));
499 static void pa_brtab PARAMS ((int));
500 static void pa_try PARAMS ((int));
501 static void pa_call PARAMS ((int));
502 static void pa_call_args PARAMS ((struct call_desc *));
503 static void pa_callinfo PARAMS ((int));
504 static void pa_code PARAMS ((int));
505 static void pa_comm PARAMS ((int));
506 static void pa_copyright PARAMS ((int));
507 static void pa_end PARAMS ((int));
508 static void pa_enter PARAMS ((int));
509 static void pa_entry PARAMS ((int));
510 static void pa_equ PARAMS ((int));
511 static void pa_exit PARAMS ((int));
512 static void pa_export PARAMS ((int));
513 static void pa_type_args PARAMS ((symbolS *, int));
514 static void pa_import PARAMS ((int));
515 static void pa_label PARAMS ((int));
516 static void pa_leave PARAMS ((int));
517 static void pa_level PARAMS ((int));
518 static void pa_origin PARAMS ((int));
519 static void pa_proc PARAMS ((int));
520 static void pa_procend PARAMS ((int));
521 static void pa_param PARAMS ((int));
522 static void pa_undefine_label PARAMS ((void));
523 static int need_pa11_opcode PARAMS ((struct pa_it *,
524 struct pa_11_fp_reg_struct *));
525 static int pa_parse_number PARAMS ((char **, struct pa_11_fp_reg_struct *));
526 static label_symbol_struct *pa_get_label PARAMS ((void));
528 static void pa_compiler PARAMS ((int));
529 static void pa_align PARAMS ((int));
530 static void pa_space PARAMS ((int));
531 static void pa_spnum PARAMS ((int));
532 static void pa_subspace PARAMS ((int));
533 static sd_chain_struct *create_new_space PARAMS ((char *, int, int,
536 static ssd_chain_struct *create_new_subspace PARAMS ((sd_chain_struct *,
541 static ssd_chain_struct *update_subspace PARAMS ((sd_chain_struct *,
542 char *, int, int, int,
546 static sd_chain_struct *is_defined_space PARAMS ((char *));
547 static ssd_chain_struct *is_defined_subspace PARAMS ((char *));
548 static sd_chain_struct *pa_segment_to_space PARAMS ((asection *));
549 static ssd_chain_struct *pa_subsegment_to_subspace PARAMS ((asection *,
551 static sd_chain_struct *pa_find_space_by_number PARAMS ((int));
552 static unsigned int pa_subspace_start PARAMS ((sd_chain_struct *, int));
553 static sd_chain_struct *pa_parse_space_stmt PARAMS ((char *, int));
554 static int pa_next_subseg PARAMS ((sd_chain_struct *));
555 static void pa_spaces_begin PARAMS ((void));
557 static void pa_ip PARAMS ((char *));
558 static void fix_new_hppa PARAMS ((fragS *, int, int, symbolS *,
559 long, expressionS *, int,
560 bfd_reloc_code_real_type,
561 enum hppa_reloc_field_selector_type_alt,
563 static int is_end_of_statement PARAMS ((void));
564 static int reg_name_search PARAMS ((char *));
565 static int pa_chk_field_selector PARAMS ((char **));
566 static int is_same_frag PARAMS ((fragS *, fragS *));
567 static void process_exit PARAMS ((void));
568 static int log2 PARAMS ((int));
569 static unsigned int pa_stringer_aux PARAMS ((char *));
570 static fp_operand_format pa_parse_fp_cnv_format PARAMS ((char **s));
571 static int pa_parse_ftest_gfx_completer PARAMS ((char **));
574 static void hppa_elf_mark_end_of_function PARAMS ((void));
575 static void pa_build_unwind_subspace PARAMS ((struct call_info *));
578 /* File and gloally scoped variable declarations. */
581 /* Root and final entry in the space chain. */
582 static sd_chain_struct *space_dict_root;
583 static sd_chain_struct *space_dict_last;
585 /* The current space and subspace. */
586 static sd_chain_struct *current_space;
587 static ssd_chain_struct *current_subspace;
590 /* Root of the call_info chain. */
591 static struct call_info *call_info_root;
593 /* The last call_info (for functions) structure
594 seen so it can be associated with fixups and
596 static struct call_info *last_call_info;
598 /* The last call description (for actual calls). */
599 static struct call_desc last_call_desc;
601 /* handle of the OPCODE hash table */
602 static struct hash_control *op_hash = NULL;
604 /* This array holds the chars that always start a comment. If the
605 pre-processor is disabled, these aren't very useful. */
606 const char comment_chars[] = ";";
608 /* Table of pseudo ops for the PA. FIXME -- how many of these
609 are now redundant with the overall GAS and the object file
611 const pseudo_typeS md_pseudo_table[] =
613 /* align pseudo-ops on the PA specify the actual alignment requested,
614 not the log2 of the requested alignment. */
616 {"align", pa_align, 8},
619 {"align", s_align_bytes, 8},
621 {"begin_brtab", pa_brtab, 1},
622 {"begin_try", pa_try, 1},
623 {"block", pa_block, 1},
624 {"blockz", pa_block, 0},
625 {"byte", pa_cons, 1},
626 {"call", pa_call, 0},
627 {"callinfo", pa_callinfo, 0},
628 {"code", pa_code, 0},
629 {"comm", pa_comm, 0},
631 {"compiler", pa_compiler, 0},
633 {"copyright", pa_copyright, 0},
634 {"data", pa_data, 0},
635 {"double", pa_float_cons, 'd'},
636 {"dword", pa_cons, 8},
638 {"end_brtab", pa_brtab, 0},
639 {"end_try", pa_try, 0},
640 {"enter", pa_enter, 0},
641 {"entry", pa_entry, 0},
643 {"exit", pa_exit, 0},
644 {"export", pa_export, 0},
646 { "file", dwarf2_directive_file },
648 {"fill", pa_fill, 0},
649 {"float", pa_float_cons, 'f'},
650 {"half", pa_cons, 2},
651 {"import", pa_import, 0},
653 {"label", pa_label, 0},
654 {"lcomm", pa_lcomm, 0},
655 {"leave", pa_leave, 0},
656 {"level", pa_level, 0},
658 { "loc", dwarf2_directive_loc },
660 {"long", pa_cons, 4},
661 {"lsym", pa_lsym, 0},
663 {"nsubspa", pa_subspace, 1},
665 {"octa", pa_cons, 16},
666 {"org", pa_origin, 0},
667 {"origin", pa_origin, 0},
668 {"param", pa_param, 0},
669 {"proc", pa_proc, 0},
670 {"procend", pa_procend, 0},
671 {"quad", pa_cons, 8},
673 {"short", pa_cons, 2},
674 {"single", pa_float_cons, 'f'},
676 {"space", pa_space, 0},
677 {"spnum", pa_spnum, 0},
679 {"string", pa_stringer, 0},
680 {"stringz", pa_stringer, 1},
682 {"subspa", pa_subspace, 0},
684 {"text", pa_text, 0},
685 {"version", pa_version, 0},
686 {"word", pa_cons, 4},
690 /* This array holds the chars that only start a comment at the beginning of
691 a line. If the line seems to have the form '# 123 filename'
692 .line and .file directives will appear in the pre-processed output.
694 Note that input_file.c hand checks for '#' at the beginning of the
695 first line of the input file. This is because the compiler outputs
696 #NO_APP at the beginning of its output.
698 Also note that C style comments will always work. */
699 const char line_comment_chars[] = "#";
701 /* This array holds the characters which act as line separators. */
702 const char line_separator_chars[] = "!";
704 /* Chars that can be used to separate mant from exp in floating point nums. */
705 const char EXP_CHARS[] = "eE";
707 /* Chars that mean this number is a floating point constant.
708 As in 0f12.456 or 0d1.2345e12.
710 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
711 changed in read.c. Ideally it shouldn't hae to know abou it at
712 all, but nothing is ideal around here. */
713 const char FLT_CHARS[] = "rRsSfFdDxXpP";
715 static struct pa_it the_insn;
717 /* Points to the end of an expression just parsed by get_expressoin
718 and friends. FIXME. This shouldn't be handled with a file-global
720 static char *expr_end;
722 /* Nonzero if a .callinfo appeared within the current procedure. */
723 static int callinfo_found;
725 /* Nonzero if the assembler is currently within a .entry/.exit pair. */
726 static int within_entry_exit;
728 /* Nonzero if the assembler is currently within a procedure definition. */
729 static int within_procedure;
731 /* Handle on strucutre which keep track of the last symbol
732 seen in each subspace. */
733 static label_symbol_struct *label_symbols_rootp = NULL;
735 /* Holds the last field selector. */
736 static int hppa_field_selector;
738 /* Nonzero when strict syntax checking is enabled. Zero otherwise.
740 Each opcode in the table has a flag which indicates whether or not
741 strict syntax checking should be enabled for that instruction. */
742 static int strict = 0;
745 /* A dummy bfd symbol so that all relocations have symbols of some kind. */
746 static symbolS *dummy_symbol;
749 /* Nonzero if errors are to be printed. */
750 static int print_errors = 1;
752 /* List of registers that are pre-defined:
754 Each general register has one predefined name of the form
755 %r<REGNUM> which has the value <REGNUM>.
757 Space and control registers are handled in a similar manner,
758 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
760 Likewise for the floating point registers, but of the form
761 %fr<REGNUM>. Floating point registers have additional predefined
762 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
763 again have the value <REGNUM>.
765 Many registers also have synonyms:
767 %r26 - %r23 have %arg0 - %arg3 as synonyms
768 %r28 - %r29 have %ret0 - %ret1 as synonyms
769 %r30 has %sp as a synonym
770 %r27 has %dp as a synonym
771 %r2 has %rp as a synonym
773 Almost every control register has a synonym; they are not listed
776 The table is sorted. Suitable for searching by a binary search. */
778 static const struct pd_reg pre_defined_registers[] =
978 /* This table is sorted by order of the length of the string. This is
979 so we check for <> before we check for <. If we had a <> and checked
980 for < first, we would get a false match. */
981 static const struct fp_cond_map fp_cond_map[] =
1017 static const struct selector_entry selector_table[] =
1042 /* default space and subspace dictionaries */
1044 #define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1045 #define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1047 /* pre-defined subsegments (subspaces) for the HPPA. */
1048 #define SUBSEG_CODE 0
1049 #define SUBSEG_LIT 1
1050 #define SUBSEG_MILLI 2
1051 #define SUBSEG_DATA 0
1052 #define SUBSEG_BSS 2
1053 #define SUBSEG_UNWIND 3
1054 #define SUBSEG_GDB_STRINGS 0
1055 #define SUBSEG_GDB_SYMBOLS 1
1057 static struct default_subspace_dict pa_def_subspaces[] =
1059 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE},
1060 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA},
1061 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT},
1062 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI},
1063 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS},
1064 {NULL, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1067 static struct default_space_dict pa_def_spaces[] =
1069 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL},
1070 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL},
1071 {NULL, 0, 0, 0, 0, 0, ASEC_NULL}
1074 /* Misc local definitions used by the assembler. */
1076 /* These macros are used to maintain spaces/subspaces. */
1077 #define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1078 #define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1079 #define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1080 #define SPACE_NAME(space_chain) (space_chain)->sd_name
1082 #define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1083 #define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1086 /* Return nonzero if the string pointed to by S potentially represents
1087 a right or left half of a FP register */
1088 #define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1089 #define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1091 /* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1092 main loop after insertion. */
1094 #define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1096 ((OPCODE) |= (FIELD) << (START)); \
1100 /* Simple range checking for FIELD againt HIGH and LOW bounds.
1101 IGNORE is used to suppress the error message. */
1103 #define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1105 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1108 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1114 #define is_DP_relative(exp) \
1115 ((exp).X_op == O_subtract \
1116 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
1118 #define is_PC_relative(exp) \
1119 ((exp).X_op == O_subtract \
1120 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
1122 /* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1123 always be able to reduce the expression to a constant, so we don't
1124 need real complex handling yet. */
1125 #define is_complex(exp) \
1126 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1128 /* Actual functions to implement the PA specific code for the assembler. */
1130 /* Called before writing the object file. Make sure entry/exit and
1131 proc/procend pairs match. */
1136 if (within_entry_exit)
1137 as_fatal (_("Missing .exit\n"));
1139 if (within_procedure)
1140 as_fatal (_("Missing .procend\n"));
1143 /* Returns a pointer to the label_symbol_struct for the current space.
1144 or NULL if no label_symbol_struct exists for the current space. */
1146 static label_symbol_struct *
1149 label_symbol_struct *label_chain;
1151 for (label_chain = label_symbols_rootp;
1153 label_chain = label_chain->lss_next)
1156 if (current_space == label_chain->lss_space && label_chain->lss_label)
1160 if (now_seg == label_chain->lss_segment && label_chain->lss_label)
1168 /* Defines a label for the current space. If one is already defined,
1169 this function will replace it with the new label. */
1172 pa_define_label (symbol)
1175 label_symbol_struct *label_chain = pa_get_label ();
1178 label_chain->lss_label = symbol;
1181 /* Create a new label entry and add it to the head of the chain. */
1183 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1184 label_chain->lss_label = symbol;
1186 label_chain->lss_space = current_space;
1189 label_chain->lss_segment = now_seg;
1191 label_chain->lss_next = NULL;
1193 if (label_symbols_rootp)
1194 label_chain->lss_next = label_symbols_rootp;
1196 label_symbols_rootp = label_chain;
1200 /* Removes a label definition for the current space.
1201 If there is no label_symbol_struct entry, then no action is taken. */
1204 pa_undefine_label ()
1206 label_symbol_struct *label_chain;
1207 label_symbol_struct *prev_label_chain = NULL;
1209 for (label_chain = label_symbols_rootp;
1211 label_chain = label_chain->lss_next)
1215 && current_space == label_chain->lss_space && label_chain->lss_label
1218 && now_seg == label_chain->lss_segment && label_chain->lss_label
1222 /* Remove the label from the chain and free its memory. */
1223 if (prev_label_chain)
1224 prev_label_chain->lss_next = label_chain->lss_next;
1226 label_symbols_rootp = label_chain->lss_next;
1231 prev_label_chain = label_chain;
1236 /* An HPPA-specific version of fix_new. This is required because the HPPA
1237 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1238 results in the creation of an instance of an hppa_fix_struct. An
1239 hppa_fix_struct stores the extra information along with a pointer to the
1240 original fixS. This is attached to the original fixup via the
1241 tc_fix_data field. */
1244 fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
1245 r_type, r_field, r_format, arg_reloc, unwind_bits)
1249 symbolS *add_symbol;
1253 bfd_reloc_code_real_type r_type;
1254 enum hppa_reloc_field_selector_type_alt r_field;
1261 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
1262 obstack_alloc (¬es, sizeof (struct hppa_fix_struct));
1265 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1267 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
1268 new_fix->tc_fix_data = (void *) hppa_fix;
1269 hppa_fix->fx_r_type = r_type;
1270 hppa_fix->fx_r_field = r_field;
1271 hppa_fix->fx_r_format = r_format;
1272 hppa_fix->fx_arg_reloc = arg_reloc;
1273 hppa_fix->segment = now_seg;
1275 if (r_type == R_ENTRY || r_type == R_EXIT)
1276 new_fix->fx_offset = *unwind_bits;
1279 /* foo-$global$ is used to access non-automatic storage. $global$
1280 is really just a marker and has served its purpose, so eliminate
1281 it now so as not to confuse write.c. */
1282 if (new_fix->fx_subsy
1283 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
1284 new_fix->fx_subsy = NULL;
1287 /* Parse a .byte, .word, .long expression for the HPPA. Called by
1288 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1291 parse_cons_expression_hppa (exp)
1294 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
1298 /* This fix_new is called by cons via TC_CONS_FIX_NEW.
1299 hppa_field_selector is set by the parse_cons_expression_hppa. */
1302 cons_fix_new_hppa (frag, where, size, exp)
1308 unsigned int rel_type;
1310 /* Get a base relocation type. */
1311 if (is_DP_relative (*exp))
1312 rel_type = R_HPPA_GOTOFF;
1313 else if (is_complex (*exp))
1314 rel_type = R_HPPA_COMPLEX;
1318 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
1319 as_warn (_("Invalid field selector. Assuming F%%."));
1321 fix_new_hppa (frag, where, size,
1322 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
1323 hppa_field_selector, size * 8, 0, NULL);
1325 /* Reset field selector to its default state. */
1326 hppa_field_selector = 0;
1329 /* This function is called once, at assembler startup time. It should
1330 set up all the tables, etc. that the MD part of the assembler will need. */
1335 const char *retval = NULL;
1339 last_call_info = NULL;
1340 call_info_root = NULL;
1342 /* Set the default machine type. */
1343 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
1344 as_warn (_("could not set architecture and machine"));
1346 /* Folding of text and data segments fails miserably on the PA.
1347 Warn user and disable "-R" option. */
1348 if (flag_readonly_data_in_text)
1350 as_warn (_("-R option not supported on this target."));
1351 flag_readonly_data_in_text = 0;
1358 op_hash = hash_new ();
1360 while (i < NUMOPCODES)
1362 const char *name = pa_opcodes[i].name;
1363 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
1364 if (retval != NULL && *retval != '\0')
1366 as_fatal (_("Internal error: can't hash `%s': %s\n"), name, retval);
1371 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
1372 != pa_opcodes[i].match)
1374 fprintf (stderr, _("internal error: losing opcode: `%s' \"%s\"\n"),
1375 pa_opcodes[i].name, pa_opcodes[i].args);
1380 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
1384 as_fatal (_("Broken assembler. No assembly attempted."));
1387 /* SOM will change text_section. To make sure we never put
1388 anything into the old one switch to the new one now. */
1389 subseg_set (text_section, 0);
1393 dummy_symbol = symbol_find_or_make ("L$dummy");
1394 S_SET_SEGMENT (dummy_symbol, text_section);
1395 /* Force the symbol to be converted to a real symbol. */
1396 (void) symbol_get_bfdsym (dummy_symbol);
1400 /* Assemble a single instruction storing it into a frag. */
1407 /* The had better be something to assemble. */
1410 /* If we are within a procedure definition, make sure we've
1411 defined a label for the procedure; handle case where the
1412 label was defined after the .PROC directive.
1414 Note there's not need to diddle with the segment or fragment
1415 for the label symbol in this case. We have already switched
1416 into the new $CODE$ subspace at this point. */
1417 if (within_procedure && last_call_info->start_symbol == NULL)
1419 label_symbol_struct *label_symbol = pa_get_label ();
1423 if (label_symbol->lss_label)
1425 last_call_info->start_symbol = label_symbol->lss_label;
1426 symbol_get_bfdsym (label_symbol->lss_label)->flags
1429 /* Also handle allocation of a fixup to hold the unwind
1430 information when the label appears after the proc/procend. */
1431 if (within_entry_exit)
1433 char *where = frag_more (0);
1435 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
1436 NULL, (offsetT) 0, NULL,
1437 0, R_HPPA_ENTRY, e_fsel, 0, 0,
1438 (int *)&last_call_info->ci_unwind.descriptor);
1443 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1446 as_bad (_("Missing function name for .PROC"));
1449 /* Assemble the instruction. Results are saved into "the_insn". */
1452 /* Get somewhere to put the assembled instrution. */
1455 /* Output the opcode. */
1456 md_number_to_chars (to, the_insn.opcode, 4);
1458 /* If necessary output more stuff. */
1459 if (the_insn.reloc != R_HPPA_NONE)
1460 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1461 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1462 the_insn.reloc, the_insn.field_selector,
1463 the_insn.format, the_insn.arg_reloc, NULL);
1466 if (debug_type == DEBUG_DWARF2)
1470 /* First update the notion of the current source line. */
1471 dwarf2_where (&debug_line);
1473 /* We want the offset of the start of this instruction within the
1474 the current frag. */
1475 addr = frag_now->fr_address + frag_now_fix () - 4;
1477 /* And record the information. */
1478 dwarf2_gen_line_info (addr, &debug_line);
1483 /* Do the real work for assembling a single instruction. Store results
1484 into the global "the_insn" variable. */
1490 char *error_message = "";
1491 char *s, c, *argstart, *name, *save_s;
1495 int cmpltr, nullif, flag, cond, num;
1496 unsigned long opcode;
1497 struct pa_opcode *insn;
1500 /* We must have a valid space and subspace. */
1501 pa_check_current_space_and_subspace ();
1504 /* Convert everything up to the first whitespace character into lower
1506 for (s = str; *s != ' ' && *s != '\t' && *s != '\n' && *s != '\0'; s++)
1510 /* Skip to something interesting. */
1511 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1530 as_fatal (_("Unknown opcode: `%s'"), str);
1535 /* Look up the opcode in the has table. */
1536 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1538 as_bad ("Unknown opcode: `%s'", str);
1547 /* Mark the location where arguments for the instruction start, then
1548 start processing them. */
1552 /* Do some initialization. */
1553 opcode = insn->match;
1554 strict = (insn->flags & FLAG_STRICT);
1555 memset (&the_insn, 0, sizeof (the_insn));
1557 the_insn.reloc = R_HPPA_NONE;
1559 /* If this instruction is specific to a particular architecture,
1560 then set a new architecture. */
1561 /* But do not automatically promote to pa2.0. The automatic promotion
1562 crud is for compatability with HP's old assemblers only. */
1564 && bfd_get_mach (stdoutput) < insn->arch)
1566 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, insn->arch))
1567 as_warn (_("could not update architecture and machine"));
1569 else if (bfd_get_mach (stdoutput) < insn->arch)
1575 /* Build the opcode, checking as we go to make
1576 sure that the operands match. */
1577 for (args = insn->args;; ++args)
1579 /* Absorb white space in instruction. */
1580 while (*s == ' ' || *s == '\t')
1586 /* End of arguments. */
1602 /* These must match exactly. */
1611 /* Handle a 5 bit register or control register field at 10. */
1614 /* This should be more strict. Small steps. */
1615 if (strict && *s != '%')
1617 num = pa_parse_number (&s, 0);
1618 CHECK_FIELD (num, 31, 0, 0);
1619 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
1621 /* Handle %sar or %cr11. No bits get set, we just verify that it
1624 /* Skip whitespace before register. */
1625 while (*s == ' ' || *s == '\t')
1628 if (!strncasecmp(s, "%sar", 4))
1633 else if (!strncasecmp(s, "%cr11", 5))
1640 /* Handle a 5 bit register field at 15. */
1642 /* This should be more strict. Small steps. */
1643 if (strict && *s != '%')
1645 num = pa_parse_number (&s, 0);
1646 CHECK_FIELD (num, 31, 0, 0);
1647 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1649 /* Handle a 5 bit register field at 31. */
1651 /* This should be more strict. Small steps. */
1652 if (strict && *s != '%')
1654 num = pa_parse_number (&s, 0);
1655 CHECK_FIELD (num, 31, 0, 0);
1656 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1658 /* Handle a 5 bit register field at 10 and 15. */
1660 /* This should be more strict. Small steps. */
1661 if (strict && *s != '%')
1663 num = pa_parse_number (&s, 0);
1664 CHECK_FIELD (num, 31, 0, 0);
1665 opcode |= num << 16;
1666 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
1668 /* Handle a 5 bit field length at 31. */
1670 num = pa_get_absolute_expression (&the_insn, &s);
1671 if (strict && the_insn.exp.X_op != O_constant)
1674 CHECK_FIELD (num, 32, 1, 0);
1675 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
1677 /* Handle a 5 bit immediate at 15. */
1679 num = pa_get_absolute_expression (&the_insn, &s);
1680 if (strict && the_insn.exp.X_op != O_constant)
1683 /* When in strict mode, we want to just reject this
1684 match instead of giving an out of range error. */
1685 CHECK_FIELD (num, 15, -16, strict);
1686 low_sign_unext (num, 5, &num);
1687 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1689 /* Handle a 5 bit immediate at 31. */
1691 num = pa_get_absolute_expression (&the_insn, &s);
1692 if (strict && the_insn.exp.X_op != O_constant)
1695 /* When in strict mode, we want to just reject this
1696 match instead of giving an out of range error. */
1697 CHECK_FIELD (num, 15, -16, strict)
1698 low_sign_unext (num, 5, &num);
1699 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1701 /* Handle an unsigned 5 bit immediate at 31. */
1703 num = pa_get_absolute_expression (&the_insn, &s);
1704 if (strict && the_insn.exp.X_op != O_constant)
1707 CHECK_FIELD (num, 31, 0, 0);
1708 INSERT_FIELD_AND_CONTINUE (opcode, num, strict);
1710 /* Handle an unsigned 5 bit immediate at 15. */
1712 num = pa_get_absolute_expression (&the_insn, &s);
1713 if (strict && the_insn.exp.X_op != O_constant)
1716 CHECK_FIELD (num, 31, 0, strict);
1717 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1719 /* Handle an unsigned 10 bit immediate at 15. */
1721 num = pa_get_absolute_expression (&the_insn, &s);
1722 if (strict && the_insn.exp.X_op != O_constant)
1725 CHECK_FIELD (num, 1023, 0, strict);
1726 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1728 /* Handle a 2 bit space identifier at 17. */
1730 /* This should be more strict. Small steps. */
1731 if (strict && *s != '%')
1733 num = pa_parse_number (&s, 0);
1734 CHECK_FIELD (num, 3, 0, 1);
1735 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
1737 /* Handle a 3 bit space identifier at 18. */
1739 /* This should be more strict. Small steps. */
1740 if (strict && *s != '%')
1742 num = pa_parse_number (&s, 0);
1743 CHECK_FIELD (num, 7, 0, 1);
1744 dis_assemble_3 (num, &num);
1745 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
1747 /* Handle all completers. */
1752 /* Handle a completer for an indexing load or store. */
1758 while (*s == ',' && i < 2)
1761 if (strncasecmp (s, "sm", 2) == 0)
1768 else if (strncasecmp (s, "m", 1) == 0)
1770 else if (strncasecmp (s, "s", 1) == 0)
1772 /* When in strict mode this is a match failure. */
1776 as_bad (_("Invalid Indexed Load Completer."));
1781 as_bad (_("Invalid Indexed Load Completer Syntax."));
1783 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
1786 /* Handle a short load/store completer. */
1797 if (strncasecmp (s, "ma", 2) == 0)
1802 else if (strncasecmp (s, "mb", 2) == 0)
1807 /* When in strict mode this is a match failure. */
1811 as_bad (_("Invalid Short Load/Store Completer."));
1814 /* If we did not get a ma/mb completer, then we do not
1815 consider this a positive match for 'cc'. */
1816 else if (*args == 'c')
1819 /* 'J', 'm' and 'q' are the same, except for where they
1820 encode the before/after field. */
1824 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1826 else if (*args == 'q')
1829 INSERT_FIELD_AND_CONTINUE (opcode, a, 2);
1831 else if (*args == 'J')
1833 /* M bit is explicit in the major opcode. */
1834 INSERT_FIELD_AND_CONTINUE (opcode, a, 2);
1836 else if (*args == 'c')
1838 /* Gross! Hide these values in the immediate field
1839 of the instruction, then pull them out later. */
1846 /* Handle a stbys completer. */
1852 while (*s == ',' && i < 2)
1855 if (strncasecmp (s, "m", 1) == 0)
1857 else if (strncasecmp (s, "b", 1) == 0)
1859 else if (strncasecmp (s, "e", 1) == 0)
1861 /* When in strict mode this is a match failure. */
1865 as_bad (_("Invalid Store Bytes Short Completer"));
1870 as_bad (_("Invalid Store Bytes Short Completer"));
1872 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1875 /* Handle a branch gate completer. */
1877 if (strncasecmp (s, ",gate", 5) != 0)
1882 /* Handle a branch link and push completer. */
1884 if (strncasecmp (s, ",l,push", 7) != 0)
1889 /* Handle a branch link completer. */
1891 if (strncasecmp (s, ",l", 2) != 0)
1896 /* Handle a branch pop completer. */
1898 if (strncasecmp (s, ",pop", 4) != 0)
1903 /* Handle a local processor completer. */
1905 if (strncasecmp (s, ",l", 2) != 0)
1910 /* Handle a PROBE read/write completer. */
1913 if (!strncasecmp (s, ",w", 2))
1918 else if (!strncasecmp (s, ",r", 2))
1924 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
1926 /* Handle MFCTL wide completer. */
1928 if (strncasecmp (s, ",w", 2) != 0)
1933 /* Handle an RFI restore completer. */
1936 if (!strncasecmp (s, ",r", 2))
1942 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
1944 /* Handle a system control completer. */
1946 if (*s == ',' && (*(s + 1) == 'm' || *(s + 1) == 'M'))
1954 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
1956 /* Handle intermediate/final completer for DCOR. */
1959 if (!strncasecmp (s, ",i", 2))
1965 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
1967 /* Handle zero/sign extension completer. */
1970 if (!strncasecmp (s, ",z", 2))
1976 INSERT_FIELD_AND_CONTINUE (opcode, flag, 10);
1978 /* Handle add completer. */
1981 if (!strncasecmp (s, ",l", 2))
1986 else if (!strncasecmp (s, ",tsv", 4))
1992 INSERT_FIELD_AND_CONTINUE (opcode, flag, 10);
1994 /* Handle 64 bit carry for ADD. */
1997 if (!strncasecmp (s, ",dc,tsv", 7) ||
1998 !strncasecmp (s, ",tsv,dc", 7))
2003 else if (!strncasecmp (s, ",dc", 3))
2011 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2013 /* Handle 32 bit carry for ADD. */
2016 if (!strncasecmp (s, ",c,tsv", 6) ||
2017 !strncasecmp (s, ",tsv,c", 6))
2022 else if (!strncasecmp (s, ",c", 2))
2030 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2032 /* Handle trap on signed overflow. */
2035 if (!strncasecmp (s, ",tsv", 4))
2041 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2043 /* Handle trap on condition and overflow. */
2046 if (!strncasecmp (s, ",tc,tsv", 7) ||
2047 !strncasecmp (s, ",tsv,tc", 7))
2052 else if (!strncasecmp (s, ",tc", 3))
2060 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2062 /* Handle 64 bit borrow for SUB. */
2065 if (!strncasecmp (s, ",db,tsv", 7) ||
2066 !strncasecmp (s, ",tsv,db", 7))
2071 else if (!strncasecmp (s, ",db", 3))
2079 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2081 /* Handle 32 bit borrow for SUB. */
2084 if (!strncasecmp (s, ",b,tsv", 6) ||
2085 !strncasecmp (s, ",tsv,b", 6))
2090 else if (!strncasecmp (s, ",b", 2))
2098 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2100 /* Handle trap condition completer for UADDCM. */
2103 if (!strncasecmp (s, ",tc", 3))
2109 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
2111 /* Handle signed/unsigned at 21. */
2115 if (strncasecmp (s, ",s", 2) == 0)
2120 else if (strncasecmp (s, ",u", 2) == 0)
2126 INSERT_FIELD_AND_CONTINUE (opcode, sign, 10);
2129 /* Handle left/right combination at 17:18. */
2139 as_bad(_("Invalid left/right combination completer"));
2142 INSERT_FIELD_AND_CONTINUE (opcode, lr, 13);
2145 as_bad(_("Invalid left/right combination completer"));
2148 /* Handle saturation at 24:25. */
2152 if (strncasecmp (s, ",ss", 3) == 0)
2157 else if (strncasecmp (s, ",us", 3) == 0)
2163 INSERT_FIELD_AND_CONTINUE (opcode, sat, 6);
2166 /* Handle permutation completer. */
2194 as_bad(_("Invalid permutation completer"));
2196 opcode |= perm << permloc[i];
2201 as_bad(_("Invalid permutation completer"));
2209 /* Handle all conditions. */
2215 /* Handle FP compare conditions. */
2217 cond = pa_parse_fp_cmp_cond (&s);
2218 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
2220 /* Handle an add condition. */
2229 /* 64 bit conditions. */
2242 while (*s != ',' && *s != ' ' && *s != '\t')
2246 if (strcmp (name, "=") == 0)
2248 else if (strcmp (name, "<") == 0)
2250 else if (strcmp (name, "<=") == 0)
2252 else if (strcasecmp (name, "nuv") == 0)
2254 else if (strcasecmp (name, "znv") == 0)
2256 else if (strcasecmp (name, "sv") == 0)
2258 else if (strcasecmp (name, "od") == 0)
2260 else if (strcasecmp (name, "tr") == 0)
2265 else if (strcmp (name, "<>") == 0)
2270 else if (strcmp (name, ">=") == 0)
2275 else if (strcmp (name, ">") == 0)
2280 else if (strcasecmp (name, "uv") == 0)
2285 else if (strcasecmp (name, "vnz") == 0)
2290 else if (strcasecmp (name, "nsv") == 0)
2295 else if (strcasecmp (name, "ev") == 0)
2300 /* ",*" is a valid condition. */
2301 else if (*args == 'a')
2302 as_bad (_("Invalid Add Condition: %s"), name);
2305 opcode |= cmpltr << 13;
2306 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
2308 /* Handle non-negated add and branch condition. */
2310 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
2313 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2316 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2318 /* Handle negated add and branch condition. */
2322 /* Handle wide-mode non-negated add and branch condition. */
2326 /* Handle wide-mode negated add and branch condition. */
2330 /* Handle a negated or non-negated add and branch
2334 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
2338 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
2341 as_bad (_("Invalid Compare/Subtract Condition"));
2346 /* Negated condition requires an opcode change. */
2350 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2352 /* Handle branch on bit conditions. */
2370 if (strncmp (s, "<", 1) == 0)
2375 else if (strncmp (s, ">=", 2) == 0)
2381 as_bad (_("Invalid Bit Branch Condition: %c"), *s);
2383 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 15);
2385 /* Handle a compare/subtract condition. */
2394 /* 64 bit conditions. */
2407 while (*s != ',' && *s != ' ' && *s != '\t')
2411 if (strcmp (name, "=") == 0)
2413 else if (strcmp (name, "<") == 0)
2415 else if (strcmp (name, "<=") == 0)
2417 else if (strcasecmp (name, "<<") == 0)
2419 else if (strcasecmp (name, "<<=") == 0)
2421 else if (strcasecmp (name, "sv") == 0)
2423 else if (strcasecmp (name, "od") == 0)
2425 else if (strcasecmp (name, "tr") == 0)
2430 else if (strcmp (name, "<>") == 0)
2435 else if (strcmp (name, ">=") == 0)
2440 else if (strcmp (name, ">") == 0)
2445 else if (strcasecmp (name, ">>=") == 0)
2450 else if (strcasecmp (name, ">>") == 0)
2455 else if (strcasecmp (name, "nsv") == 0)
2460 else if (strcasecmp (name, "ev") == 0)
2465 /* ",*" is a valid condition. */
2466 else if (*args != 'S')
2467 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2471 opcode |= cmpltr << 13;
2472 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
2474 /* Handle a non-negated compare condition. */
2476 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2479 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2482 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2484 /* Handle a negated compare condition. */
2488 /* Handle a 64 bit non-negated compare condition. */
2492 /* Handle a 64 bit negated compare condition. */
2496 /* Handle a 64 bit cmpib condition. */
2500 /* Handle a negated or non-negated compare/subtract
2504 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2508 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
2511 as_bad (_("Invalid Compare/Subtract Condition."));
2516 /* Negated condition requires an opcode change. */
2521 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2523 /* Handle a logical instruction condition. */
2532 /* 64 bit conditions. */
2545 while (*s != ',' && *s != ' ' && *s != '\t')
2551 if (strcmp (name, "=") == 0)
2553 else if (strcmp (name, "<") == 0)
2555 else if (strcmp (name, "<=") == 0)
2557 else if (strcasecmp (name, "od") == 0)
2559 else if (strcasecmp (name, "tr") == 0)
2564 else if (strcmp (name, "<>") == 0)
2569 else if (strcmp (name, ">=") == 0)
2574 else if (strcmp (name, ">") == 0)
2579 else if (strcasecmp (name, "ev") == 0)
2584 /* ",*" is a valid condition. */
2585 else if (*args != 'L')
2586 as_bad (_("Invalid Logical Instruction Condition."));
2589 opcode |= cmpltr << 13;
2590 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
2592 /* Handle a shift/extract/deposit condition. */
2601 /* 64 bit conditions. */
2614 while (*s != ',' && *s != ' ' && *s != '\t')
2618 if (strcmp (name, "=") == 0)
2620 else if (strcmp (name, "<") == 0)
2622 else if (strcasecmp (name, "od") == 0)
2624 else if (strcasecmp (name, "tr") == 0)
2626 else if (strcmp (name, "<>") == 0)
2628 else if (strcmp (name, ">=") == 0)
2630 else if (strcasecmp (name, "ev") == 0)
2632 /* Handle movb,n. Put things back the way they were.
2633 This includes moving s back to where it started. */
2634 else if (strcasecmp (name, "n") == 0 && *args == 'y')
2640 /* ",*" is a valid condition. */
2641 else if (*args != 'X')
2642 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2645 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2647 /* Handle a unit instruction condition. */
2656 /* 64 bit conditions. */
2667 if (strncasecmp (s, "sbz", 3) == 0)
2672 else if (strncasecmp (s, "shz", 3) == 0)
2677 else if (strncasecmp (s, "sdc", 3) == 0)
2682 else if (strncasecmp (s, "sbc", 3) == 0)
2687 else if (strncasecmp (s, "shc", 3) == 0)
2692 else if (strncasecmp (s, "tr", 2) == 0)
2698 else if (strncasecmp (s, "nbz", 3) == 0)
2704 else if (strncasecmp (s, "nhz", 3) == 0)
2710 else if (strncasecmp (s, "ndc", 3) == 0)
2716 else if (strncasecmp (s, "nbc", 3) == 0)
2722 else if (strncasecmp (s, "nhc", 3) == 0)
2728 /* ",*" is a valid condition. */
2729 else if (*args != 'U')
2730 as_bad (_("Invalid Unit Instruction Condition."));
2732 opcode |= cmpltr << 13;
2733 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
2741 /* Handle a nullification completer for branch instructions. */
2743 nullif = pa_parse_nullif (&s);
2744 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
2746 /* Handle a nullification completer for copr and spop insns. */
2748 nullif = pa_parse_nullif (&s);
2749 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2751 /* Handle ,%r2 completer for new syntax branches. */
2753 if (*s == ',' && strncasecmp (s + 1, "%r2", 3) == 0)
2755 else if (*s == ',' && strncasecmp (s + 1, "%rp", 3) == 0)
2761 /* Handle 3 bit entry into the fp compare array. Valid values
2762 are 0..6 inclusive. */
2766 if (the_insn.exp.X_op == O_constant)
2768 num = evaluate_absolute (&the_insn);
2769 CHECK_FIELD (num, 6, 0, 0);
2771 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
2776 /* Handle 3 bit entry into the fp compare array. Valid values
2777 are 0..6 inclusive. */
2780 if (the_insn.exp.X_op == O_constant)
2783 num = evaluate_absolute (&the_insn);
2784 CHECK_FIELD (num, 6, 0, 0);
2785 num = (num + 1) ^ 1;
2786 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
2791 /* Handle graphics test completers for ftest */
2794 num = pa_parse_ftest_gfx_completer (&s);
2795 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2798 /* Handle a 11 bit immediate at 31. */
2800 the_insn.field_selector = pa_chk_field_selector (&s);
2803 if (the_insn.exp.X_op == O_constant)
2805 num = evaluate_absolute (&the_insn);
2806 CHECK_FIELD (num, 1023, -1024, 0);
2807 low_sign_unext (num, 11, &num);
2808 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2812 if (is_DP_relative (the_insn.exp))
2813 the_insn.reloc = R_HPPA_GOTOFF;
2814 else if (is_PC_relative (the_insn.exp))
2815 the_insn.reloc = R_HPPA_PCREL_CALL;
2817 the_insn.reloc = R_HPPA;
2818 the_insn.format = 11;
2822 /* Handle a 14 bit immediate at 31. */
2824 the_insn.field_selector = pa_chk_field_selector (&s);
2827 if (the_insn.exp.X_op == O_constant)
2831 /* XXX the completer stored away tibits of information
2832 for us to extract. We need a cleaner way to do this.
2833 Now that we have lots of letters again, it would be
2834 good to rethink this. */
2835 m = (opcode & (1 << 8)) != 0;
2836 a = (opcode & (1 << 9)) != 0;
2837 opcode &= ~ (3 << 8);
2838 num = evaluate_absolute (&the_insn);
2839 if ((a == 1 && num >= 0) || (a == 0 && num < 0))
2841 CHECK_FIELD (num, 8191, -8192, 0);
2842 low_sign_unext (num, 14, &num);
2843 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2850 /* Handle a 14 bit immediate at 31. */
2852 the_insn.field_selector = pa_chk_field_selector (&s);
2855 if (the_insn.exp.X_op == O_constant)
2859 /* XXX the completer stored away tibits of information
2860 for us to extract. We need a cleaner way to do this.
2861 Now that we have lots of letters again, it would be
2862 good to rethink this. */
2863 m = (opcode & (1 << 8)) != 0;
2864 a = (opcode & (1 << 9)) != 0;
2865 opcode &= ~ (3 << 8);
2866 num = evaluate_absolute (&the_insn);
2867 if ((a == 1 && num < 0) || (a == 0 && num > 0))
2871 CHECK_FIELD (num, 8191, -8192, 0);
2876 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
2883 /* Handle 14 bit immediated, shifted left three times. */
2885 the_insn.field_selector = pa_chk_field_selector (&s);
2888 if (the_insn.exp.X_op == O_constant)
2890 num = evaluate_absolute (&the_insn);
2893 CHECK_FIELD (num, 8191, -8192, 0);
2898 INSERT_FIELD_AND_CONTINUE (opcode, num, 4);
2902 if (is_DP_relative (the_insn.exp))
2903 the_insn.reloc = R_HPPA_GOTOFF;
2904 else if (is_PC_relative (the_insn.exp))
2905 the_insn.reloc = R_HPPA_PCREL_CALL;
2907 the_insn.reloc = R_HPPA;
2908 the_insn.format = 14;
2913 /* Handle 14 bit immediate, shifted left twice. */
2915 the_insn.field_selector = pa_chk_field_selector (&s);
2918 if (the_insn.exp.X_op == O_constant)
2920 num = evaluate_absolute (&the_insn);
2923 CHECK_FIELD (num, 8191, -8192, 0);
2928 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
2932 if (is_DP_relative (the_insn.exp))
2933 the_insn.reloc = R_HPPA_GOTOFF;
2934 else if (is_PC_relative (the_insn.exp))
2935 the_insn.reloc = R_HPPA_PCREL_CALL;
2937 the_insn.reloc = R_HPPA;
2938 the_insn.format = 14;
2942 /* Handle a 14 bit immediate at 31. */
2944 the_insn.field_selector = pa_chk_field_selector (&s);
2947 if (the_insn.exp.X_op == O_constant)
2949 num = evaluate_absolute (&the_insn);
2950 CHECK_FIELD (num, 8191, -8192, 0);
2951 low_sign_unext (num, 14, &num);
2952 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2956 if (is_DP_relative (the_insn.exp))
2957 the_insn.reloc = R_HPPA_GOTOFF;
2958 else if (is_PC_relative (the_insn.exp))
2959 the_insn.reloc = R_HPPA_PCREL_CALL;
2961 the_insn.reloc = R_HPPA;
2962 the_insn.format = 14;
2966 /* Handle a 21 bit immediate at 31. */
2968 the_insn.field_selector = pa_chk_field_selector (&s);
2971 if (the_insn.exp.X_op == O_constant)
2973 num = evaluate_absolute (&the_insn);
2974 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
2975 dis_assemble_21 (num, &num);
2976 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2980 if (is_DP_relative (the_insn.exp))
2981 the_insn.reloc = R_HPPA_GOTOFF;
2982 else if (is_PC_relative (the_insn.exp))
2983 the_insn.reloc = R_HPPA_PCREL_CALL;
2985 the_insn.reloc = R_HPPA;
2986 the_insn.format = 21;
2990 /* Handle a 12 bit branch displacement. */
2992 the_insn.field_selector = pa_chk_field_selector (&s);
2996 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
2998 unsigned int w1, w, result;
3000 num = evaluate_absolute (&the_insn);
3003 as_bad (_("Branch to unaligned address"));
3006 CHECK_FIELD (num, 8199, -8184, 0);
3007 sign_unext ((num - 8) >> 2, 12, &result);
3008 dis_assemble_12 (result, &w1, &w);
3009 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
3013 the_insn.reloc = R_HPPA_PCREL_CALL;
3014 the_insn.format = 12;
3015 the_insn.arg_reloc = last_call_desc.arg_reloc;
3016 memset (&last_call_desc, 0, sizeof (struct call_desc));
3021 /* Handle a 17 bit branch displacement. */
3023 the_insn.field_selector = pa_chk_field_selector (&s);
3027 if (!the_insn.exp.X_add_symbol
3028 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3031 unsigned int w2, w1, w, result;
3033 num = evaluate_absolute (&the_insn);
3036 as_bad (_("Branch to unaligned address"));
3039 CHECK_FIELD (num, 262143, -262144, 0);
3041 if (the_insn.exp.X_add_symbol)
3044 sign_unext (num >> 2, 17, &result);
3045 dis_assemble_17 (result, &w1, &w2, &w);
3046 INSERT_FIELD_AND_CONTINUE (opcode,
3047 ((w2 << 2) | (w1 << 16) | w), 0);
3051 the_insn.reloc = R_HPPA_PCREL_CALL;
3052 the_insn.format = 17;
3053 the_insn.arg_reloc = last_call_desc.arg_reloc;
3054 memset (&last_call_desc, 0, sizeof (struct call_desc));
3058 /* Handle a 22 bit branch displacement. */
3060 the_insn.field_selector = pa_chk_field_selector (&s);
3064 if (!the_insn.exp.X_add_symbol
3065 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3068 unsigned int w3, w2, w1, w, result;
3070 num = evaluate_absolute (&the_insn);
3073 as_bad (_("Branch to unaligned address"));
3076 CHECK_FIELD (num, 8388607, -8388608, 0);
3078 if (the_insn.exp.X_add_symbol)
3081 sign_unext (num >> 2, 22, &result);
3082 dis_assemble_22 (result, &w3, &w1, &w2, &w);
3083 INSERT_FIELD_AND_CONTINUE (opcode,
3084 ((w3 << 21) | (w2 << 2)
3090 the_insn.reloc = R_HPPA_PCREL_CALL;
3091 the_insn.format = 22;
3092 the_insn.arg_reloc = last_call_desc.arg_reloc;
3093 memset (&last_call_desc, 0, sizeof (struct call_desc));
3097 /* Handle an absolute 17 bit branch target. */
3099 the_insn.field_selector = pa_chk_field_selector (&s);
3103 if (!the_insn.exp.X_add_symbol
3104 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3107 unsigned int w2, w1, w, result;
3109 num = evaluate_absolute (&the_insn);
3112 as_bad (_("Branch to unaligned address"));
3115 CHECK_FIELD (num, 262143, -262144, 0);
3117 if (the_insn.exp.X_add_symbol)
3120 sign_unext (num >> 2, 17, &result);
3121 dis_assemble_17 (result, &w1, &w2, &w);
3122 INSERT_FIELD_AND_CONTINUE (opcode,
3123 ((w2 << 2) | (w1 << 16) | w), 0);
3127 the_insn.reloc = R_HPPA_ABS_CALL;
3128 the_insn.format = 17;
3129 the_insn.arg_reloc = last_call_desc.arg_reloc;
3130 memset (&last_call_desc, 0, sizeof (struct call_desc));
3134 /* Handle '%r1' implicit operand of addil instruction. */
3136 if (*s == ',' && *(s + 1) == '%' && *(s + 3) == '1'
3137 && (*(s + 2) == 'r' || *(s + 2) == 'R'))
3145 /* Handle '%sr0,%r31' implicit operand of be,l instruction. */
3147 if (strncasecmp (s, "%sr0,%r31", 9) != 0)
3152 /* Handle a 2 bit shift count at 25. */
3154 num = pa_get_absolute_expression (&the_insn, &s);
3155 if (strict && the_insn.exp.X_op != O_constant)
3158 CHECK_FIELD (num, 3, 1, strict);
3159 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3161 /* Handle a 4 bit shift count at 25. */
3163 num = pa_get_absolute_expression (&the_insn, &s);
3164 if (strict && the_insn.exp.X_op != O_constant)
3167 CHECK_FIELD (num, 15, 0, strict);
3168 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3170 /* Handle a 5 bit shift count at 26. */
3172 num = pa_get_absolute_expression (&the_insn, &s);
3173 if (strict && the_insn.exp.X_op != O_constant)
3176 CHECK_FIELD (num, 31, 0, strict);
3177 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
3179 /* Handle a 6 bit shift count at 20,22:26. */
3181 num = pa_get_absolute_expression (&the_insn, &s);
3182 if (strict && the_insn.exp.X_op != O_constant)
3185 CHECK_FIELD (num, 63, 0, strict);
3187 opcode |= (num & 0x20) << 6;
3188 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
3190 /* Handle a 6 bit field length at 23,27:31. */
3193 num = pa_get_absolute_expression (&the_insn, &s);
3194 if (strict && the_insn.exp.X_op != O_constant)
3197 CHECK_FIELD (num, 64, 1, strict);
3199 opcode |= (num & 0x20) << 3;
3200 num = 31 - (num & 0x1f);
3201 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3203 /* Handle a 6 bit field length at 19,27:31. */
3205 num = pa_get_absolute_expression (&the_insn, &s);
3206 if (strict && the_insn.exp.X_op != O_constant)
3209 CHECK_FIELD (num, 64, 1, strict);
3211 opcode |= (num & 0x20) << 7;
3212 num = 31 - (num & 0x1f);
3213 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3215 /* Handle a 5 bit bit position at 26. */
3217 num = pa_get_absolute_expression (&the_insn, &s);
3218 if (strict && the_insn.exp.X_op != O_constant)
3221 CHECK_FIELD (num, 31, 0, strict);
3222 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
3224 /* Handle a 6 bit bit position at 20,22:26. */
3226 num = pa_get_absolute_expression (&the_insn, &s);
3227 if (strict && the_insn.exp.X_op != O_constant)
3230 CHECK_FIELD (num, 63, 0, strict);
3231 opcode |= (num & 0x20) << 6;
3232 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
3234 /* Handle a 5 bit immediate at 10. */
3236 num = pa_get_absolute_expression (&the_insn, &s);
3237 if (strict && the_insn.exp.X_op != O_constant)
3239 if (the_insn.exp.X_op != O_constant)
3242 CHECK_FIELD (num, 31, 0, strict);
3243 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
3245 /* Handle a 9 bit immediate at 28. */
3247 num = pa_get_absolute_expression (&the_insn, &s);
3248 if (strict && the_insn.exp.X_op != O_constant)
3251 CHECK_FIELD (num, 511, 1, strict);
3252 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
3254 /* Handle a 13 bit immediate at 18. */
3256 num = pa_get_absolute_expression (&the_insn, &s);
3257 if (strict && the_insn.exp.X_op != O_constant)
3260 CHECK_FIELD (num, 8191, 0, strict);
3261 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
3263 /* Handle a 26 bit immediate at 31. */
3265 num = pa_get_absolute_expression (&the_insn, &s);
3266 if (strict && the_insn.exp.X_op != O_constant)
3269 CHECK_FIELD (num, 671108864, 0, strict);
3270 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3272 /* Handle a 3 bit SFU identifier at 25. */
3275 as_bad (_("Invalid SFU identifier"));
3276 num = pa_get_absolute_expression (&the_insn, &s);
3277 if (strict && the_insn.exp.X_op != O_constant)
3280 CHECK_FIELD (num, 7, 0, strict);
3281 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3283 /* Handle a 20 bit SOP field for spop0. */
3285 num = pa_get_absolute_expression (&the_insn, &s);
3286 if (strict && the_insn.exp.X_op != O_constant)
3289 CHECK_FIELD (num, 1048575, 0, strict);
3290 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
3291 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3293 /* Handle a 15bit SOP field for spop1. */
3295 num = pa_get_absolute_expression (&the_insn, &s);
3296 if (strict && the_insn.exp.X_op != O_constant)
3299 CHECK_FIELD (num, 32767, 0, strict);
3300 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
3302 /* Handle a 10bit SOP field for spop3. */
3304 num = pa_get_absolute_expression (&the_insn, &s);
3305 if (strict && the_insn.exp.X_op != O_constant)
3308 CHECK_FIELD (num, 1023, 0, strict);
3309 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
3310 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3312 /* Handle a 15 bit SOP field for spop2. */
3314 num = pa_get_absolute_expression (&the_insn, &s);
3315 if (strict && the_insn.exp.X_op != O_constant)
3318 CHECK_FIELD (num, 32767, 0, strict);
3319 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
3320 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3322 /* Handle a 3-bit co-processor ID field. */
3325 as_bad (_("Invalid COPR identifier"));
3326 num = pa_get_absolute_expression (&the_insn, &s);
3327 if (strict && the_insn.exp.X_op != O_constant)
3330 CHECK_FIELD (num, 7, 0, strict);
3331 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3333 /* Handle a 22bit SOP field for copr. */
3335 num = pa_get_absolute_expression (&the_insn, &s);
3336 if (strict && the_insn.exp.X_op != O_constant)
3339 CHECK_FIELD (num, 4194303, 0, strict);
3340 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
3341 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3343 /* Handle a source FP operand format completer. */
3345 if (*s == ',' && *(s+1) == 't')
3352 flag = pa_parse_fp_cnv_format (&s);
3353 the_insn.fpof1 = flag;
3354 if (flag == W || flag == UW)
3356 if (flag == DW || flag == UDW)
3358 if (flag == QW || flag == UQW)
3360 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3362 /* Handle a destination FP operand format completer. */
3364 /* pa_parse_format needs the ',' prefix. */
3366 flag = pa_parse_fp_cnv_format (&s);
3367 the_insn.fpof2 = flag;
3368 if (flag == W || flag == UW)
3370 if (flag == DW || flag == UDW)
3372 if (flag == QW || flag == UQW)
3374 opcode |= flag << 13;
3375 if (the_insn.fpof1 == SGL
3376 || the_insn.fpof1 == DBL
3377 || the_insn.fpof1 == QUAD)
3379 if (the_insn.fpof2 == SGL
3380 || the_insn.fpof2 == DBL
3381 || the_insn.fpof2 == QUAD)
3383 else if (the_insn.fpof2 == W
3384 || the_insn.fpof2 == DW
3385 || the_insn.fpof2 == QW)
3387 else if (the_insn.fpof2 == UW
3388 || the_insn.fpof2 == UDW
3389 || the_insn.fpof2 == UQW)
3394 else if (the_insn.fpof1 == W
3395 || the_insn.fpof1 == DW
3396 || the_insn.fpof1 == QW)
3398 if (the_insn.fpof2 == SGL
3399 || the_insn.fpof2 == DBL
3400 || the_insn.fpof2 == QUAD)
3405 else if (the_insn.fpof1 == UW
3406 || the_insn.fpof1 == UDW
3407 || the_insn.fpof1 == UQW)
3409 if (the_insn.fpof2 == SGL
3410 || the_insn.fpof2 == DBL
3411 || the_insn.fpof2 == QUAD)
3416 flag |= the_insn.trunc;
3417 INSERT_FIELD_AND_CONTINUE (opcode, flag, 15);
3419 /* Handle a source FP operand format completer. */
3421 flag = pa_parse_fp_format (&s);
3422 the_insn.fpof1 = flag;
3423 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3425 /* Handle a destination FP operand format completer. */
3427 /* pa_parse_format needs the ',' prefix. */
3429 flag = pa_parse_fp_format (&s);
3430 the_insn.fpof2 = flag;
3431 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
3433 /* Handle a source FP operand format completer at 20. */
3435 flag = pa_parse_fp_format (&s);
3436 the_insn.fpof1 = flag;
3437 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3439 /* Handle a floating point operand format at 26.
3440 Only allows single and double precision. */
3442 flag = pa_parse_fp_format (&s);
3448 the_insn.fpof1 = flag;
3454 as_bad (_("Invalid Floating Point Operand Format."));
3458 /* Handle all floating point registers. */
3462 /* Float target register. */
3464 /* This should be more strict. Small steps. */
3465 if (strict && *s != '%')
3467 num = pa_parse_number (&s, 0);
3468 CHECK_FIELD (num, 31, 0, 0);
3469 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3471 /* Float target register with L/R selection. */
3474 struct pa_11_fp_reg_struct result;
3476 /* This should be more strict. Small steps. */
3477 if (strict && *s != '%')
3479 pa_parse_number (&s, &result);
3480 CHECK_FIELD (result.number_part, 31, 0, 0);
3481 opcode |= result.number_part;
3483 /* 0x30 opcodes are FP arithmetic operation opcodes
3484 and need to be turned into 0x38 opcodes. This
3485 is not necessary for loads/stores. */
3486 if (need_pa11_opcode (&the_insn, &result)
3487 && ((opcode & 0xfc000000) == 0x30000000))
3490 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
3493 /* Float operand 1. */
3496 struct pa_11_fp_reg_struct result;
3498 /* This should be more strict. Small steps. */
3499 if (strict && *s != '%')
3501 pa_parse_number (&s, &result);
3502 CHECK_FIELD (result.number_part, 31, 0, 0);
3503 opcode |= result.number_part << 21;
3504 if (need_pa11_opcode (&the_insn, &result))
3506 opcode |= (result.l_r_select & 1) << 7;
3512 /* Float operand 1 with L/R selection. */
3516 struct pa_11_fp_reg_struct result;
3518 /* This should be more strict. Small steps. */
3519 if (strict && *s != '%')
3521 pa_parse_number (&s, &result);
3522 CHECK_FIELD (result.number_part, 31, 0, 0);
3523 opcode |= result.number_part << 21;
3524 opcode |= (result.l_r_select & 1) << 7;
3528 /* Float operand 2. */
3531 struct pa_11_fp_reg_struct result;
3533 /* This should be more strict. Small steps. */
3534 if (strict && *s != '%')
3536 pa_parse_number (&s, &result);
3537 CHECK_FIELD (result.number_part, 31, 0, 0);
3538 opcode |= (result.number_part & 0x1f) << 16;
3539 if (need_pa11_opcode (&the_insn, &result))
3541 opcode |= (result.l_r_select & 1) << 12;
3547 /* Float operand 2 with L/R selection. */
3550 struct pa_11_fp_reg_struct result;
3552 /* This should be more strict. Small steps. */
3553 if (strict && *s != '%')
3555 pa_parse_number (&s, &result);
3556 CHECK_FIELD (result.number_part, 31, 0, 0);
3557 opcode |= (result.number_part & 0x1f) << 16;
3558 opcode |= (result.l_r_select & 1) << 12;
3562 /* Float operand 3 for fmpyfadd, fmpynfadd. */
3565 struct pa_11_fp_reg_struct result;
3567 /* This should be more strict. Small steps. */
3568 if (strict && *s != '%')
3570 pa_parse_number (&s, &result);
3571 CHECK_FIELD (result.number_part, 31, 0, 0);
3572 opcode |= (result.number_part & 0x1c) << 11;
3573 opcode |= (result.number_part & 0x3) << 9;
3574 opcode |= (result.l_r_select & 1) << 8;
3578 /* Float mult operand 1 for fmpyadd, fmpysub */
3581 struct pa_11_fp_reg_struct result;
3583 /* This should be more strict. Small steps. */
3584 if (strict && *s != '%')
3586 pa_parse_number (&s, &result);
3587 CHECK_FIELD (result.number_part, 31, 0, 0);
3588 if (the_insn.fpof1 == SGL)
3590 if (result.number_part < 16)
3592 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3596 result.number_part &= 0xF;
3597 result.number_part |= (result.l_r_select & 1) << 4;
3599 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
3602 /* Float mult operand 2 for fmpyadd, fmpysub */
3605 struct pa_11_fp_reg_struct result;
3607 /* This should be more strict. Small steps. */
3608 if (strict && *s != '%')
3610 pa_parse_number (&s, &result);
3611 CHECK_FIELD (result.number_part, 31, 0, 0);
3612 if (the_insn.fpof1 == SGL)
3614 if (result.number_part < 16)
3616 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3619 result.number_part &= 0xF;
3620 result.number_part |= (result.l_r_select & 1) << 4;
3622 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
3625 /* Float mult target for fmpyadd, fmpysub */
3628 struct pa_11_fp_reg_struct result;
3630 /* This should be more strict. Small steps. */
3631 if (strict && *s != '%')
3633 pa_parse_number (&s, &result);
3634 CHECK_FIELD (result.number_part, 31, 0, 0);
3635 if (the_insn.fpof1 == SGL)
3637 if (result.number_part < 16)
3639 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3642 result.number_part &= 0xF;
3643 result.number_part |= (result.l_r_select & 1) << 4;
3645 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 0);
3648 /* Float add operand 1 for fmpyadd, fmpysub */
3651 struct pa_11_fp_reg_struct result;
3653 /* This should be more strict. Small steps. */
3654 if (strict && *s != '%')
3656 pa_parse_number (&s, &result);
3657 CHECK_FIELD (result.number_part, 31, 0, 0);
3658 if (the_insn.fpof1 == SGL)
3660 if (result.number_part < 16)
3662 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3665 result.number_part &= 0xF;
3666 result.number_part |= (result.l_r_select & 1) << 4;
3668 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
3671 /* Float add target for fmpyadd, fmpysub */
3674 struct pa_11_fp_reg_struct result;
3676 /* This should be more strict. Small steps. */
3677 if (strict && *s != '%')
3679 pa_parse_number (&s, &result);
3680 CHECK_FIELD (result.number_part, 31, 0, 0);
3681 if (the_insn.fpof1 == SGL)
3683 if (result.number_part < 16)
3685 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3688 result.number_part &= 0xF;
3689 result.number_part |= (result.l_r_select & 1) << 4;
3691 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
3694 /* Handle L/R register halves like 'x'. */
3697 struct pa_11_fp_reg_struct result;
3699 if (strict && *s != '%')
3701 pa_parse_number (&s, &result);
3702 CHECK_FIELD (result.number_part, 31, 0, 0);
3703 opcode |= (result.number_part & 0x1f) << 16;
3704 if (need_pa11_opcode (&the_insn, &result))
3706 opcode |= (result.l_r_select & 1) << 1;
3714 /* Handle L/R register halves like 'x'. */
3717 struct pa_11_fp_reg_struct result;
3719 /* This should be more strict. Small steps. */
3720 if (strict && *s != '%')
3722 pa_parse_number (&s, &result);
3723 CHECK_FIELD (result.number_part, 31, 0, 0);
3724 opcode |= (result.number_part & 0x1f) << 16;
3725 if (need_pa11_opcode (&the_insn, &result))
3727 opcode |= (result.l_r_select & 1) << 1;
3739 /* Check if the args matched. */
3742 if (&insn[1] - pa_opcodes < (int) NUMOPCODES
3743 && !strcmp (insn->name, insn[1].name))
3751 as_bad (_("Invalid operands %s"), error_message);
3758 the_insn.opcode = opcode;
3761 /* Turn a string in input_line_pointer into a floating point constant of type
3762 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3763 emitted is stored in *sizeP . An error message or NULL is returned. */
3765 #define MAX_LITTLENUMS 6
3768 md_atof (type, litP, sizeP)
3774 LITTLENUM_TYPE words[MAX_LITTLENUMS];
3775 LITTLENUM_TYPE *wordP;
3807 return _("Bad call to MD_ATOF()");
3809 t = atof_ieee (input_line_pointer, type, words);
3811 input_line_pointer = t;
3812 *sizeP = prec * sizeof (LITTLENUM_TYPE);
3813 for (wordP = words; prec--;)
3815 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
3816 litP += sizeof (LITTLENUM_TYPE);
3821 /* Write out big-endian. */
3824 md_number_to_chars (buf, val, n)
3829 number_to_chars_bigendian (buf, val, n);
3832 /* Translate internal representation of relocation info to BFD target
3836 tc_gen_reloc (section, fixp)
3841 struct hppa_fix_struct *hppa_fixp;
3842 bfd_reloc_code_real_type code;
3843 static arelent *no_relocs = NULL;
3845 bfd_reloc_code_real_type **codes;
3849 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
3850 if (fixp->fx_addsy == 0)
3852 assert (hppa_fixp != 0);
3853 assert (section != 0);
3855 reloc = (arelent *) xmalloc (sizeof (arelent));
3857 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3858 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
3859 codes = (bfd_reloc_code_real_type **) hppa_gen_reloc_type (stdoutput,
3861 hppa_fixp->fx_r_format,
3862 hppa_fixp->fx_r_field,
3863 fixp->fx_subsy != NULL,
3864 symbol_get_bfdsym (fixp->fx_addsy));
3869 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
3872 relocs = (arelent **) xmalloc (sizeof (arelent *) * n_relocs + 1);
3873 reloc = (arelent *) xmalloc (sizeof (arelent) * n_relocs);
3874 for (i = 0; i < n_relocs; i++)
3875 relocs[i] = &reloc[i];
3877 relocs[n_relocs] = NULL;
3880 switch (fixp->fx_r_type)
3883 assert (n_relocs == 1);
3887 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3888 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
3889 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
3890 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
3891 reloc->addend = 0; /* default */
3893 assert (reloc->howto && code == reloc->howto->type);
3895 /* Now, do any processing that is dependent on the relocation type. */
3898 case R_PARISC_DLTREL21L:
3899 case R_PARISC_DLTREL14R:
3900 case R_PARISC_DLTREL14F:
3901 case R_PARISC_PLABEL32:
3902 case R_PARISC_PLABEL21L:
3903 case R_PARISC_PLABEL14R:
3904 /* For plabel relocations, the addend of the
3905 relocation should be either 0 (no static link) or 2
3906 (static link required).
3908 FIXME: We always assume no static link!
3910 We also slam a zero addend into the DLT relative relocs;
3911 it doesn't make a lot of sense to use any addend since
3912 it gets you a different (eg unknown) DLT entry. */
3916 case R_PARISC_PCREL21L:
3917 case R_PARISC_PCREL17R:
3918 case R_PARISC_PCREL17F:
3919 case R_PARISC_PCREL17C:
3920 case R_PARISC_PCREL14R:
3921 case R_PARISC_PCREL14F:
3922 /* The constant is stored in the instruction. */
3923 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3926 reloc->addend = fixp->fx_offset;
3933 /* Walk over reach relocation returned by the BFD backend. */
3934 for (i = 0; i < n_relocs; i++)
3938 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3939 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
3940 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
3941 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3946 /* The only time we ever use a R_COMP2 fixup is for the difference
3947 of two symbols. With that in mind we fill in all four
3948 relocs now and break out of the loop. */
3950 relocs[0]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
3951 relocs[0]->howto = bfd_reloc_type_lookup (stdoutput, *codes[0]);
3952 relocs[0]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3953 relocs[0]->addend = 0;
3954 relocs[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3955 *relocs[1]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
3956 relocs[1]->howto = bfd_reloc_type_lookup (stdoutput, *codes[1]);
3957 relocs[1]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3958 relocs[1]->addend = 0;
3959 relocs[2]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3960 *relocs[2]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);
3961 relocs[2]->howto = bfd_reloc_type_lookup (stdoutput, *codes[2]);
3962 relocs[2]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3963 relocs[2]->addend = 0;
3964 relocs[3]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
3965 relocs[3]->howto = bfd_reloc_type_lookup (stdoutput, *codes[3]);
3966 relocs[3]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3967 relocs[3]->addend = 0;
3968 relocs[4]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
3969 relocs[4]->howto = bfd_reloc_type_lookup (stdoutput, *codes[4]);
3970 relocs[4]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3971 relocs[4]->addend = 0;
3975 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3981 /* For plabel relocations, the addend of the
3982 relocation should be either 0 (no static link) or 2
3983 (static link required).
3985 FIXME: We always assume no static link!
3987 We also slam a zero addend into the DLT relative relocs;
3988 it doesn't make a lot of sense to use any addend since
3989 it gets you a different (eg unknown) DLT entry. */
3990 relocs[i]->addend = 0;
4005 /* There is no symbol or addend associated with these fixups. */
4006 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
4007 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
4008 relocs[i]->addend = 0;
4014 /* There is no symbol associated with these fixups. */
4015 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
4016 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
4017 relocs[i]->addend = fixp->fx_offset;
4021 relocs[i]->addend = fixp->fx_offset;
4031 /* Process any machine dependent frag types. */
4034 md_convert_frag (abfd, sec, fragP)
4036 register asection *sec;
4037 register fragS *fragP;
4039 unsigned int address;
4041 if (fragP->fr_type == rs_machine_dependent)
4043 switch ((int) fragP->fr_subtype)
4046 fragP->fr_type = rs_fill;
4047 know (fragP->fr_var == 1);
4048 know (fragP->fr_next);
4049 address = fragP->fr_address + fragP->fr_fix;
4050 if (address % fragP->fr_offset)
4053 fragP->fr_next->fr_address
4058 fragP->fr_offset = 0;
4064 /* Round up a section size to the appropriate boundary. */
4067 md_section_align (segment, size)
4071 int align = bfd_get_section_alignment (stdoutput, segment);
4072 int align2 = (1 << align) - 1;
4074 return (size + align2) & ~align2;
4077 /* Return the approximate size of a frag before relaxation has occurred. */
4079 md_estimate_size_before_relax (fragP, segment)
4080 register fragS *fragP;
4087 while ((fragP->fr_fix + size) % fragP->fr_offset)
4093 CONST char *md_shortopts = "";
4094 struct option md_longopts[] = {
4095 {NULL, no_argument, NULL, 0}
4097 size_t md_longopts_size = sizeof(md_longopts);
4100 md_parse_option (c, arg)
4108 md_show_usage (stream)
4113 /* We have no need to default values of symbols. */
4116 md_undefined_symbol (name)
4122 /* Apply a fixup to an instruction. */
4125 md_apply_fix (fixP, valp)
4129 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
4130 struct hppa_fix_struct *hppa_fixP;
4131 long new_val, result = 0;
4132 unsigned int w1, w2, w, resulti;
4134 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
4135 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
4136 never be "applied" (they are just markers). Likewise for
4137 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
4139 if (fixP->fx_r_type == R_HPPA_ENTRY
4140 || fixP->fx_r_type == R_HPPA_EXIT
4141 || fixP->fx_r_type == R_HPPA_BEGIN_BRTAB
4142 || fixP->fx_r_type == R_HPPA_END_BRTAB
4143 || fixP->fx_r_type == R_HPPA_BEGIN_TRY)
4146 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
4147 fixups are considered not adjustable, which in turn causes
4148 adjust_reloc_syms to not set fx_offset. Ugh. */
4149 if (fixP->fx_r_type == R_HPPA_END_TRY)
4151 fixP->fx_offset = *valp;
4156 /* There should have been an HPPA specific fixup associated
4157 with the GAS fixup. */
4160 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
4161 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
4163 /* If there is a symbol associated with this fixup, then it's something
4164 which will need a SOM relocation (except for some PC-relative relocs).
4165 In such cases we should treat the "val" or "addend" as zero since it
4166 will be added in as needed from fx_offset in tc_gen_reloc. */
4167 if ((fixP->fx_addsy != NULL
4168 || fixP->fx_r_type == R_HPPA_NONE)
4173 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
4175 /* These field selectors imply that we do not want an addend. */
4176 else if (hppa_fixP->fx_r_field == e_psel
4177 || hppa_fixP->fx_r_field == e_rpsel
4178 || hppa_fixP->fx_r_field == e_lpsel
4179 || hppa_fixP->fx_r_field == e_tsel
4180 || hppa_fixP->fx_r_field == e_rtsel
4181 || hppa_fixP->fx_r_field == e_ltsel)
4182 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
4183 /* This is truely disgusting. The machine independent code blindly
4184 adds in the value of the symbol being relocated against. Damn! */
4186 && fixP->fx_addsy != NULL
4187 && S_GET_SEGMENT (fixP->fx_addsy) != bfd_com_section_ptr)
4188 new_val = hppa_field_adjust (*valp - S_GET_VALUE (fixP->fx_addsy),
4189 0, hppa_fixP->fx_r_field);
4192 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
4194 /* Handle pc-relative exceptions from above. */
4195 #define arg_reloc_stub_needed(CALLER, CALLEE) \
4196 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
4197 if ((fmt == 12 || fmt == 17 || fmt == 22)
4201 && !arg_reloc_stub_needed ((long) ((obj_symbol_type *)
4202 symbol_get_bfdsym (fixP->fx_addsy))->tc_data.ap.hppa_arg_reloc,
4203 hppa_fixP->fx_arg_reloc)
4205 && (((int)(*valp) > -262144 && (int)(*valp) < 262143) && fmt != 22)
4206 && S_GET_SEGMENT (fixP->fx_addsy) == hppa_fixP->segment
4208 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
4210 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
4211 #undef arg_reloc_stub_needed
4215 /* Handle all opcodes with the 'j' operand type. */
4217 CHECK_FIELD (new_val, 8191, -8192, 0);
4219 /* Mask off 14 bits to be changed. */
4220 bfd_put_32 (stdoutput,
4221 bfd_get_32 (stdoutput, buf) & 0xffffc000,
4223 low_sign_unext (new_val, 14, &resulti);
4227 /* Handle all opcodes with the 'k' operand type. */
4229 CHECK_FIELD (new_val, 2097152, 0, 0);
4231 /* Mask off 21 bits to be changed. */
4232 bfd_put_32 (stdoutput,
4233 bfd_get_32 (stdoutput, buf) & 0xffe00000,
4235 dis_assemble_21 (new_val, &resulti);
4239 /* Handle all the opcodes with the 'i' operand type. */
4241 CHECK_FIELD (new_val, 1023, -1023, 0);
4243 /* Mask off 11 bits to be changed. */
4244 bfd_put_32 (stdoutput,
4245 bfd_get_32 (stdoutput, buf) & 0xffff800,
4247 low_sign_unext (new_val, 11, &resulti);
4251 /* Handle all the opcodes with the 'w' operand type. */
4253 CHECK_FIELD (new_val, 8199, -8184, 0);
4255 /* Mask off 11 bits to be changed. */
4256 sign_unext ((new_val - 8) >> 2, 12, &resulti);
4257 bfd_put_32 (stdoutput,
4258 bfd_get_32 (stdoutput, buf) & 0xffffe002,
4261 dis_assemble_12 (resulti, &w1, &w);
4262 result = ((w1 << 2) | w);
4265 /* Handle some of the opcodes with the 'W' operand type. */
4268 int distance = *valp;
4270 CHECK_FIELD (new_val, 262143, -262144, 0);
4272 /* If this is an absolute branch (ie no link) with an out of
4273 range target, then we want to complain. */
4274 if (fixP->fx_r_type == R_HPPA_PCREL_CALL
4275 && (distance > 262143 || distance < -262144)
4276 && (bfd_get_32 (stdoutput, buf) & 0xffe00000) == 0xe8000000)
4277 CHECK_FIELD (distance, 262143, -262144, 0);
4279 /* Mask off 17 bits to be changed. */
4280 bfd_put_32 (stdoutput,
4281 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
4283 sign_unext ((new_val - 8) >> 2, 17, &resulti);
4284 dis_assemble_17 (resulti, &w1, &w2, &w);
4285 result = ((w2 << 2) | (w1 << 16) | w);
4291 int distance = *valp, w3;
4293 CHECK_FIELD (new_val, 8388607, -8388608, 0);
4295 /* If this is an absolute branch (ie no link) with an out of
4296 range target, then we want to complain. */
4297 if (fixP->fx_r_type == R_HPPA_PCREL_CALL
4298 && (distance > 8388607 || distance < -8388608)
4299 && (bfd_get_32 (stdoutput, buf) & 0xffe00000) == 0xe8000000)
4300 CHECK_FIELD (distance, 8388607, -8388608, 0);
4302 /* Mask off 22 bits to be changed. */
4303 bfd_put_32 (stdoutput,
4304 bfd_get_32 (stdoutput, buf) & 0xfc00e002,
4306 sign_unext ((new_val - 8) >> 2, 22, &resulti);
4307 dis_assemble_22 (resulti, &w3, &w1, &w2, &w);
4308 result = ((w3 << 21) | (w2 << 2) | (w1 << 16) | w);
4314 bfd_put_32 (stdoutput, new_val, buf);
4318 as_bad (_("Unknown relocation encountered in md_apply_fix."));
4322 /* Insert the relocation. */
4323 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
4328 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
4329 (unsigned int) fixP, fixP->fx_r_type);
4334 /* Exactly what point is a PC-relative offset relative TO?
4335 On the PA, they're relative to the address of the offset. */
4338 md_pcrel_from (fixP)
4341 return fixP->fx_where + fixP->fx_frag->fr_address;
4344 /* Return nonzero if the input line pointer is at the end of
4348 is_end_of_statement ()
4350 return ((*input_line_pointer == '\n')
4351 || (*input_line_pointer == ';')
4352 || (*input_line_pointer == '!'));
4355 /* Read a number from S. The number might come in one of many forms,
4356 the most common will be a hex or decimal constant, but it could be
4357 a pre-defined register (Yuk!), or an absolute symbol.
4359 Return a number or -1 for failure.
4361 When parsing PA-89 FP register numbers RESULT will be
4362 the address of a structure to return information about
4363 L/R half of FP registers, store results there as appropriate.
4365 pa_parse_number can not handle negative constants and will fail
4366 horribly if it is passed such a constant. */
4369 pa_parse_number (s, result)
4371 struct pa_11_fp_reg_struct *result;
4380 /* Skip whitespace before the number. */
4381 while (*p == ' ' || *p == '\t')
4384 /* Store info in RESULT if requested by caller. */
4387 result->number_part = -1;
4388 result->l_r_select = -1;
4394 /* Looks like a number. */
4397 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
4399 /* The number is specified in hex. */
4401 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
4402 || ((*p >= 'A') && (*p <= 'F')))
4405 num = num * 16 + *p - '0';
4406 else if (*p >= 'a' && *p <= 'f')
4407 num = num * 16 + *p - 'a' + 10;
4409 num = num * 16 + *p - 'A' + 10;
4415 /* The number is specified in decimal. */
4416 while (isdigit (*p))
4418 num = num * 10 + *p - '0';
4423 /* Store info in RESULT if requested by the caller. */
4426 result->number_part = num;
4428 if (IS_R_SELECT (p))
4430 result->l_r_select = 1;
4433 else if (IS_L_SELECT (p))
4435 result->l_r_select = 0;
4439 result->l_r_select = 0;
4444 /* The number might be a predefined register. */
4449 /* Tege hack: Special case for general registers as the general
4450 code makes a binary search with case translation, and is VERY
4455 if (*p == 'e' && *(p + 1) == 't'
4456 && (*(p + 2) == '0' || *(p + 2) == '1'))
4459 num = *p - '0' + 28;
4467 else if (!isdigit (*p))
4470 as_bad (_("Undefined register: '%s'."), name);
4476 num = num * 10 + *p++ - '0';
4477 while (isdigit (*p));
4482 /* Do a normal register search. */
4483 while (is_part_of_name (c))
4489 status = reg_name_search (name);
4495 as_bad (_("Undefined register: '%s'."), name);
4501 /* Store info in RESULT if requested by caller. */
4504 result->number_part = num;
4505 if (IS_R_SELECT (p - 1))
4506 result->l_r_select = 1;
4507 else if (IS_L_SELECT (p - 1))
4508 result->l_r_select = 0;
4510 result->l_r_select = 0;
4515 /* And finally, it could be a symbol in the absolute section which
4516 is effectively a constant. */
4520 while (is_part_of_name (c))
4526 if ((sym = symbol_find (name)) != NULL)
4528 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
4529 num = S_GET_VALUE (sym);
4533 as_bad (_("Non-absolute symbol: '%s'."), name);
4539 /* There is where we'd come for an undefined symbol
4540 or for an empty string. For an empty string we
4541 will return zero. That's a concession made for
4542 compatability with the braindamaged HP assemblers. */
4548 as_bad (_("Undefined absolute constant: '%s'."), name);
4554 /* Store info in RESULT if requested by caller. */
4557 result->number_part = num;
4558 if (IS_R_SELECT (p - 1))
4559 result->l_r_select = 1;
4560 else if (IS_L_SELECT (p - 1))
4561 result->l_r_select = 0;
4563 result->l_r_select = 0;
4571 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
4573 /* Given NAME, find the register number associated with that name, return
4574 the integer value associated with the given name or -1 on failure. */
4577 reg_name_search (name)
4580 int middle, low, high;
4584 high = REG_NAME_CNT - 1;
4588 middle = (low + high) / 2;
4589 cmp = strcasecmp (name, pre_defined_registers[middle].name);
4595 return pre_defined_registers[middle].value;
4597 while (low <= high);
4603 /* Return nonzero if the given INSN and L/R information will require
4604 a new PA-1.1 opcode. */
4607 need_pa11_opcode (insn, result)
4609 struct pa_11_fp_reg_struct *result;
4611 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
4613 /* If this instruction is specific to a particular architecture,
4614 then set a new architecture. */
4615 if (bfd_get_mach (stdoutput) < pa11)
4617 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, pa11))
4618 as_warn (_("could not update architecture and machine"));
4626 /* Parse a condition for a fcmp instruction. Return the numerical
4627 code associated with the condition. */
4630 pa_parse_fp_cmp_cond (s)
4637 for (i = 0; i < 32; i++)
4639 if (strncasecmp (*s, fp_cond_map[i].string,
4640 strlen (fp_cond_map[i].string)) == 0)
4642 cond = fp_cond_map[i].cond;
4643 *s += strlen (fp_cond_map[i].string);
4644 /* If not a complete match, back up the input string and
4646 if (**s != ' ' && **s != '\t')
4648 *s -= strlen (fp_cond_map[i].string);
4651 while (**s == ' ' || **s == '\t')
4657 as_bad (_("Invalid FP Compare Condition: %s"), *s);
4659 /* Advance over the bogus completer. */
4660 while (**s != ',' && **s != ' ' && **s != '\t')
4666 /* Parse a graphics test complete for ftest. */
4669 pa_parse_ftest_gfx_completer (s)
4675 if (strncasecmp (*s, "acc8", 4) == 0)
4680 else if (strncasecmp (*s, "acc6", 4) == 0)
4685 else if (strncasecmp (*s, "acc4", 4) == 0)
4690 else if (strncasecmp (*s, "acc2", 4) == 0)
4695 else if (strncasecmp (*s, "acc", 3) == 0)
4700 else if (strncasecmp (*s, "rej8", 4) == 0)
4705 else if (strncasecmp (*s, "rej", 3) == 0)
4713 as_bad (_("Invalid FTEST completer: %s"), *s);
4719 /* Parse an FP operand format completer returning the completer
4722 static fp_operand_format
4723 pa_parse_fp_cnv_format (s)
4732 if (strncasecmp (*s, "sgl", 3) == 0)
4737 else if (strncasecmp (*s, "dbl", 3) == 0)
4742 else if (strncasecmp (*s, "quad", 4) == 0)
4747 else if (strncasecmp (*s, "w", 1) == 0)
4752 else if (strncasecmp (*s, "uw", 2) == 0)
4757 else if (strncasecmp (*s, "dw", 2) == 0)
4762 else if (strncasecmp (*s, "udw", 3) == 0)
4767 else if (strncasecmp (*s, "qw", 2) == 0)
4772 else if (strncasecmp (*s, "uqw", 3) == 0)
4779 format = ILLEGAL_FMT;
4780 as_bad (_("Invalid FP Operand Format: %3s"), *s);
4787 /* Parse an FP operand format completer returning the completer
4790 static fp_operand_format
4791 pa_parse_fp_format (s)
4800 if (strncasecmp (*s, "sgl", 3) == 0)
4805 else if (strncasecmp (*s, "dbl", 3) == 0)
4810 else if (strncasecmp (*s, "quad", 4) == 0)
4817 format = ILLEGAL_FMT;
4818 as_bad (_("Invalid FP Operand Format: %3s"), *s);
4825 /* Convert from a selector string into a selector type. */
4828 pa_chk_field_selector (str)
4831 int middle, low, high;
4835 /* Read past any whitespace. */
4836 /* FIXME: should we read past newlines and formfeeds??? */
4837 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
4840 if ((*str)[1] == '\'' || (*str)[1] == '%')
4841 name[0] = tolower ((*str)[0]),
4843 else if ((*str)[2] == '\'' || (*str)[2] == '%')
4844 name[0] = tolower ((*str)[0]),
4845 name[1] = tolower ((*str)[1]),
4847 else if ((*str)[3] == '\'' || (*str)[3] == '%')
4848 name[0] = tolower ((*str)[0]),
4849 name[1] = tolower ((*str)[1]),
4850 name[2] = tolower ((*str)[2]),
4856 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
4860 middle = (low + high) / 2;
4861 cmp = strcmp (name, selector_table[middle].prefix);
4868 *str += strlen (name) + 1;
4870 if (selector_table[middle].field_selector == e_nsel)
4873 return selector_table[middle].field_selector;
4876 while (low <= high);
4881 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
4884 get_expression (str)
4890 save_in = input_line_pointer;
4891 input_line_pointer = str;
4892 seg = expression (&the_insn.exp);
4893 if (!(seg == absolute_section
4894 || seg == undefined_section
4895 || SEG_NORMAL (seg)))
4897 as_warn (_("Bad segment in expression."));
4898 expr_end = input_line_pointer;
4899 input_line_pointer = save_in;
4902 expr_end = input_line_pointer;
4903 input_line_pointer = save_in;
4907 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
4909 pa_get_absolute_expression (insn, strp)
4915 insn->field_selector = pa_chk_field_selector (strp);
4916 save_in = input_line_pointer;
4917 input_line_pointer = *strp;
4918 expression (&insn->exp);
4919 /* This is not perfect, but is a huge improvement over doing nothing.
4921 The PA assembly syntax is ambigious in a variety of ways. Consider
4922 this string "4 %r5" Is that the number 4 followed by the register
4923 r5, or is that 4 MOD 5?
4925 If we get a modulo expresion When looking for an absolute, we try
4926 again cutting off the input string at the first whitespace character. */
4927 if (insn->exp.X_op == O_modulus)
4932 input_line_pointer = *strp;
4934 while (*s != ',' && *s != ' ' && *s != '\t')
4940 retval = pa_get_absolute_expression (insn, strp);
4942 input_line_pointer = save_in;
4944 return evaluate_absolute (insn);
4946 /* When in strict mode we have a non-match, fix up the pointers
4947 and return to our caller. */
4948 if (insn->exp.X_op != O_constant && strict)
4950 expr_end = input_line_pointer;
4951 input_line_pointer = save_in;
4954 if (insn->exp.X_op != O_constant)
4956 as_bad (_("Bad segment (should be absolute)."));
4957 expr_end = input_line_pointer;
4958 input_line_pointer = save_in;
4961 expr_end = input_line_pointer;
4962 input_line_pointer = save_in;
4963 return evaluate_absolute (insn);
4966 /* Evaluate an absolute expression EXP which may be modified by
4967 the selector FIELD_SELECTOR. Return the value of the expression. */
4969 evaluate_absolute (insn)
4974 int field_selector = insn->field_selector;
4977 value = exp.X_add_number;
4979 switch (field_selector)
4985 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4987 if (value & 0x00000400)
4989 value = (value & 0xfffff800) >> 11;
4992 /* Sign extend from bit 21. */
4994 if (value & 0x00000400)
4995 value |= 0xfffff800;
5000 /* Arithmetic shift right 11 bits. */
5002 value = (value & 0xfffff800) >> 11;
5005 /* Set bits 0-20 to zero. */
5007 value = value & 0x7ff;
5010 /* Add 0x800 and arithmetic shift right 11 bits. */
5013 value = (value & 0xfffff800) >> 11;
5016 /* Set bitgs 0-21 to one. */
5018 value |= 0xfffff800;
5021 #define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
5023 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
5027 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
5032 BAD_CASE (field_selector);
5038 /* Given an argument location specification return the associated
5039 argument location number. */
5042 pa_build_arg_reloc (type_name)
5046 if (strncasecmp (type_name, "no", 2) == 0)
5048 if (strncasecmp (type_name, "gr", 2) == 0)
5050 else if (strncasecmp (type_name, "fr", 2) == 0)
5052 else if (strncasecmp (type_name, "fu", 2) == 0)
5055 as_bad (_("Invalid argument location: %s\n"), type_name);
5060 /* Encode and return an argument relocation specification for
5061 the given register in the location specified by arg_reloc. */
5064 pa_align_arg_reloc (reg, arg_reloc)
5066 unsigned int arg_reloc;
5068 unsigned int new_reloc;
5070 new_reloc = arg_reloc;
5086 as_bad (_("Invalid argument description: %d"), reg);
5092 /* Parse a PA nullification completer (,n). Return nonzero if the
5093 completer was found; return zero if no completer was found. */
5105 if (strncasecmp (*s, "n", 1) == 0)
5109 as_bad (_("Invalid Nullification: (%c)"), **s);
5118 /* Parse a non-negated compare/subtract completer returning the
5119 number (for encoding in instrutions) of the given completer.
5121 ISBRANCH specifies whether or not this is parsing a condition
5122 completer for a branch (vs a nullification completer for a
5123 computational instruction. */
5126 pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
5131 char *name = *s + 1;
5140 while (**s != ',' && **s != ' ' && **s != '\t')
5146 if (strcmp (name, "=") == 0)
5150 else if (strcmp (name, "<") == 0)
5154 else if (strcmp (name, "<=") == 0)
5158 else if (strcmp (name, "<<") == 0)
5162 else if (strcmp (name, "<<=") == 0)
5166 else if (strcasecmp (name, "sv") == 0)
5170 else if (strcasecmp (name, "od") == 0)
5174 /* If we have something like addb,n then there is no condition
5176 else if (strcasecmp (name, "n") == 0 && isbranch)
5188 /* Reset pointers if this was really a ,n for a branch instruction. */
5196 /* Parse a negated compare/subtract completer returning the
5197 number (for encoding in instrutions) of the given completer.
5199 ISBRANCH specifies whether or not this is parsing a condition
5200 completer for a branch (vs a nullification completer for a
5201 computational instruction. */
5204 pa_parse_neg_cmpsub_cmpltr (s, isbranch)
5209 char *name = *s + 1;
5218 while (**s != ',' && **s != ' ' && **s != '\t')
5224 if (strcasecmp (name, "tr") == 0)
5228 else if (strcmp (name, "<>") == 0)
5232 else if (strcmp (name, ">=") == 0)
5236 else if (strcmp (name, ">") == 0)
5240 else if (strcmp (name, ">>=") == 0)
5244 else if (strcmp (name, ">>") == 0)
5248 else if (strcasecmp (name, "nsv") == 0)
5252 else if (strcasecmp (name, "ev") == 0)
5256 /* If we have something like addb,n then there is no condition
5258 else if (strcasecmp (name, "n") == 0 && isbranch)
5270 /* Reset pointers if this was really a ,n for a branch instruction. */
5279 /* Parse a non-negated addition completer returning the number
5280 (for encoding in instrutions) of the given completer.
5282 ISBRANCH specifies whether or not this is parsing a condition
5283 completer for a branch (vs a nullification completer for a
5284 computational instruction. */
5287 pa_parse_nonneg_add_cmpltr (s, isbranch)
5292 char *name = *s + 1;
5300 while (**s != ',' && **s != ' ' && **s != '\t')
5304 if (strcmp (name, "=") == 0)
5308 else if (strcmp (name, "<") == 0)
5312 else if (strcmp (name, "<=") == 0)
5316 else if (strcasecmp (name, "nuv") == 0)
5320 else if (strcasecmp (name, "znv") == 0)
5324 else if (strcasecmp (name, "sv") == 0)
5328 else if (strcasecmp (name, "od") == 0)
5332 /* If we have something like addb,n then there is no condition
5334 else if (strcasecmp (name, "n") == 0 && isbranch)
5345 /* Reset pointers if this was really a ,n for a branch instruction. */
5346 if (cmpltr == 0 && *name == 'n' && isbranch)
5352 /* Parse a negated addition completer returning the number
5353 (for encoding in instrutions) of the given completer.
5355 ISBRANCH specifies whether or not this is parsing a condition
5356 completer for a branch (vs a nullification completer for a
5357 computational instruction). */
5360 pa_parse_neg_add_cmpltr (s, isbranch)
5365 char *name = *s + 1;
5373 while (**s != ',' && **s != ' ' && **s != '\t')
5377 if (strcasecmp (name, "tr") == 0)
5381 else if (strcmp (name, "<>") == 0)
5385 else if (strcmp (name, ">=") == 0)
5389 else if (strcmp (name, ">") == 0)
5393 else if (strcasecmp (name, "uv") == 0)
5397 else if (strcasecmp (name, "vnz") == 0)
5401 else if (strcasecmp (name, "nsv") == 0)
5405 else if (strcasecmp (name, "ev") == 0)
5409 /* If we have something like addb,n then there is no condition
5411 else if (strcasecmp (name, "n") == 0 && isbranch)
5422 /* Reset pointers if this was really a ,n for a branch instruction. */
5423 if (cmpltr == 0 && *name == 'n' && isbranch)
5430 /* Handle an alignment directive. Special so that we can update the
5431 alignment of the subspace if necessary. */
5435 /* We must have a valid space and subspace. */
5436 pa_check_current_space_and_subspace ();
5438 /* Let the generic gas code do most of the work. */
5439 s_align_bytes (bytes);
5441 /* If bytes is a power of 2, then update the current subspace's
5442 alignment if necessary. */
5443 if (log2 (bytes) != -1)
5444 record_alignment (current_subspace->ssd_seg, log2 (bytes));
5448 /* Handle a .BLOCK type pseudo-op. */
5456 unsigned int temp_size;
5460 /* We must have a valid space and subspace. */
5461 pa_check_current_space_and_subspace ();
5464 temp_size = get_absolute_expression ();
5466 /* Always fill with zeros, that's what the HP assembler does. */
5469 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
5470 (relax_substateT) 0, (symbolS *) 0, (offsetT) 1, NULL);
5471 memset (p, 0, temp_size);
5473 /* Convert 2 bytes at a time. */
5475 for (i = 0; i < temp_size; i += 2)
5477 md_number_to_chars (p + i,
5479 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
5482 pa_undefine_label ();
5483 demand_empty_rest_of_line ();
5486 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
5494 /* The BRTAB relocations are only availble in SOM (to denote
5495 the beginning and end of branch tables). */
5496 char *where = frag_more (0);
5498 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5499 NULL, (offsetT) 0, NULL,
5500 0, begin ? R_HPPA_BEGIN_BRTAB : R_HPPA_END_BRTAB,
5501 e_fsel, 0, 0, NULL);
5504 demand_empty_rest_of_line ();
5507 /* Handle a .begin_try and .end_try pseudo-op. */
5515 char *where = frag_more (0);
5520 /* The TRY relocations are only availble in SOM (to denote
5521 the beginning and end of exception handling regions). */
5523 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5524 NULL, (offsetT) 0, begin ? NULL : &exp,
5525 0, begin ? R_HPPA_BEGIN_TRY : R_HPPA_END_TRY,
5526 e_fsel, 0, 0, NULL);
5529 demand_empty_rest_of_line ();
5532 /* Handle a .CALL pseudo-op. This involves storing away information
5533 about where arguments are to be found so the linker can detect
5534 (and correct) argument location mismatches between caller and callee. */
5541 /* We must have a valid space and subspace. */
5542 pa_check_current_space_and_subspace ();
5545 pa_call_args (&last_call_desc);
5546 demand_empty_rest_of_line ();
5549 /* Do the dirty work of building a call descriptor which describes
5550 where the caller placed arguments to a function call. */
5553 pa_call_args (call_desc)
5554 struct call_desc *call_desc;
5557 unsigned int temp, arg_reloc;
5559 while (!is_end_of_statement ())
5561 name = input_line_pointer;
5562 c = get_symbol_end ();
5563 /* Process a source argument. */
5564 if ((strncasecmp (name, "argw", 4) == 0))
5566 temp = atoi (name + 4);
5567 p = input_line_pointer;
5569 input_line_pointer++;
5570 name = input_line_pointer;
5571 c = get_symbol_end ();
5572 arg_reloc = pa_build_arg_reloc (name);
5573 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
5575 /* Process a return value. */
5576 else if ((strncasecmp (name, "rtnval", 6) == 0))
5578 p = input_line_pointer;
5580 input_line_pointer++;
5581 name = input_line_pointer;
5582 c = get_symbol_end ();
5583 arg_reloc = pa_build_arg_reloc (name);
5584 call_desc->arg_reloc |= (arg_reloc & 0x3);
5588 as_bad (_("Invalid .CALL argument: %s"), name);
5590 p = input_line_pointer;
5592 if (!is_end_of_statement ())
5593 input_line_pointer++;
5597 /* Return TRUE if FRAG1 and FRAG2 are the same. */
5600 is_same_frag (frag1, frag2)
5607 else if (frag2 == NULL)
5609 else if (frag1 == frag2)
5611 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
5612 return (is_same_frag (frag1, frag2->fr_next));
5618 /* Build an entry in the UNWIND subspace from the given function
5619 attributes in CALL_INFO. This is not needed for SOM as using
5620 R_ENTRY and R_EXIT relocations allow the linker to handle building
5621 of the unwind spaces. */
5624 pa_build_unwind_subspace (call_info)
5625 struct call_info *call_info;
5628 asection *seg, *save_seg;
5630 subsegT subseg, save_subseg;
5634 if (now_seg != text_section)
5637 if (bfd_get_arch_info (stdoutput)->bits_per_address == 32)
5638 reloc = R_PARISC_DIR32;
5640 reloc = R_PARISC_SEGREL32;
5642 /* Get into the right seg/subseg. This may involve creating
5643 the seg the first time through. Make sure to have the
5644 old seg/subseg so that we can reset things when we are done. */
5645 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
5646 if (seg == ASEC_NULL)
5648 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
5649 bfd_set_section_flags (stdoutput, seg,
5650 SEC_READONLY | SEC_HAS_CONTENTS
5651 | SEC_LOAD | SEC_RELOC | SEC_ALLOC | SEC_DATA);
5652 bfd_set_section_alignment (stdoutput, seg, 2);
5656 save_subseg = now_subseg;
5657 subseg_set (seg, 0);
5660 /* Get some space to hold relocation information for the unwind
5663 md_number_to_chars (p, 0, 4);
5665 /* Relocation info. for start offset of the function. */
5666 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
5667 call_info->start_symbol, (offsetT) 0,
5668 (expressionS *) NULL, 0, reloc,
5669 e_fsel, 32, 0, NULL);
5672 md_number_to_chars (p, 0, 4);
5674 /* Relocation info. for end offset of the function.
5676 Because we allow reductions of 32bit relocations for ELF, this will be
5677 reduced to section_sym + offset which avoids putting the temporary
5678 symbol into the symbol table. It (should) end up giving the same
5679 value as call_info->start_symbol + function size once the linker is
5680 finished with its work. */
5682 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
5683 call_info->end_symbol, (offsetT) 0,
5684 (expressionS *) NULL, 0, reloc,
5685 e_fsel, 32, 0, NULL);
5688 unwind = (char *) &call_info->ci_unwind;
5689 for (i = 8; i < sizeof (struct unwind_table); i++)
5693 FRAG_APPEND_1_CHAR (c);
5697 /* Return back to the original segment/subsegment. */
5698 subseg_set (save_seg, save_subseg);
5702 /* Process a .CALLINFO pseudo-op. This information is used later
5703 to build unwind descriptors and maybe one day to support
5704 .ENTER and .LEAVE. */
5707 pa_callinfo (unused)
5714 /* We must have a valid space and subspace. */
5715 pa_check_current_space_and_subspace ();
5718 /* .CALLINFO must appear within a procedure definition. */
5719 if (!within_procedure)
5720 as_bad (_(".callinfo is not within a procedure definition"));
5722 /* Mark the fact that we found the .CALLINFO for the
5723 current procedure. */
5724 callinfo_found = TRUE;
5726 /* Iterate over the .CALLINFO arguments. */
5727 while (!is_end_of_statement ())
5729 name = input_line_pointer;
5730 c = get_symbol_end ();
5731 /* Frame size specification. */
5732 if ((strncasecmp (name, "frame", 5) == 0))
5734 p = input_line_pointer;
5736 input_line_pointer++;
5737 temp = get_absolute_expression ();
5738 if ((temp & 0x3) != 0)
5740 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp);
5744 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5745 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
5748 /* Entry register (GR, GR and SR) specifications. */
5749 else if ((strncasecmp (name, "entry_gr", 8) == 0))
5751 p = input_line_pointer;
5753 input_line_pointer++;
5754 temp = get_absolute_expression ();
5755 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5756 even though %r19 is caller saved. I think this is a bug in
5757 the HP assembler, and we are not going to emulate it. */
5758 if (temp < 3 || temp > 18)
5759 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5760 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
5762 else if ((strncasecmp (name, "entry_fr", 8) == 0))
5764 p = input_line_pointer;
5766 input_line_pointer++;
5767 temp = get_absolute_expression ();
5768 /* Similarly the HP assembler takes 31 as the high bound even
5769 though %fr21 is the last callee saved floating point register. */
5770 if (temp < 12 || temp > 21)
5771 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5772 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
5774 else if ((strncasecmp (name, "entry_sr", 8) == 0))
5776 p = input_line_pointer;
5778 input_line_pointer++;
5779 temp = get_absolute_expression ();
5781 as_bad (_("Value for ENTRY_SR must be 3\n"));
5783 /* Note whether or not this function performs any calls. */
5784 else if ((strncasecmp (name, "calls", 5) == 0) ||
5785 (strncasecmp (name, "caller", 6) == 0))
5787 p = input_line_pointer;
5790 else if ((strncasecmp (name, "no_calls", 8) == 0))
5792 p = input_line_pointer;
5795 /* Should RP be saved into the stack. */
5796 else if ((strncasecmp (name, "save_rp", 7) == 0))
5798 p = input_line_pointer;
5800 last_call_info->ci_unwind.descriptor.save_rp = 1;
5802 /* Likewise for SP. */
5803 else if ((strncasecmp (name, "save_sp", 7) == 0))
5805 p = input_line_pointer;
5807 last_call_info->ci_unwind.descriptor.save_sp = 1;
5809 /* Is this an unwindable procedure. If so mark it so
5810 in the unwind descriptor. */
5811 else if ((strncasecmp (name, "no_unwind", 9) == 0))
5813 p = input_line_pointer;
5815 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
5817 /* Is this an interrupt routine. If so mark it in the
5818 unwind descriptor. */
5819 else if ((strncasecmp (name, "hpux_int", 7) == 0))
5821 p = input_line_pointer;
5823 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
5825 /* Is this a millicode routine. "millicode" isn't in my
5826 assembler manual, but my copy is old. The HP assembler
5827 accepts it, and there's a place in the unwind descriptor
5828 to drop the information, so we'll accept it too. */
5829 else if ((strncasecmp (name, "millicode", 9) == 0))
5831 p = input_line_pointer;
5833 last_call_info->ci_unwind.descriptor.millicode = 1;
5837 as_bad (_("Invalid .CALLINFO argument: %s"), name);
5838 *input_line_pointer = c;
5840 if (!is_end_of_statement ())
5841 input_line_pointer++;
5844 demand_empty_rest_of_line ();
5847 /* Switch into the code subspace. */
5854 current_space = is_defined_space ("$TEXT$");
5856 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
5859 pa_undefine_label ();
5862 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5863 the .comm pseudo-op has the following symtax:
5865 <label> .comm <length>
5867 where <label> is optional and is a symbol whose address will be the start of
5868 a block of memory <length> bytes long. <length> must be an absolute
5869 expression. <length> bytes will be allocated in the current space
5872 Also note the label may not even be on the same line as the .comm.
5874 This difference in syntax means the colon function will be called
5875 on the symbol before we arrive in pa_comm. colon will set a number
5876 of attributes of the symbol that need to be fixed here. In particular
5877 the value, section pointer, fragment pointer, flags, etc. What
5880 This also makes error detection all but impossible. */
5888 label_symbol_struct *label_symbol = pa_get_label ();
5891 symbol = label_symbol->lss_label;
5896 size = get_absolute_expression ();
5900 S_SET_VALUE (symbol, size);
5901 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
5902 S_SET_EXTERNAL (symbol);
5904 /* colon() has already set the frag to the current location in the
5905 current subspace; we need to reset the fragment to the zero address
5906 fragment. We also need to reset the segment pointer. */
5907 symbol_set_frag (symbol, &zero_address_frag);
5909 demand_empty_rest_of_line ();
5912 /* Process a .END pseudo-op. */
5918 demand_empty_rest_of_line ();
5921 /* Process a .ENTER pseudo-op. This is not supported. */
5927 /* We must have a valid space and subspace. */
5928 pa_check_current_space_and_subspace ();
5931 as_bad (_("The .ENTER pseudo-op is not supported"));
5932 demand_empty_rest_of_line ();
5935 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5942 /* We must have a valid space and subspace. */
5943 pa_check_current_space_and_subspace ();
5946 if (!within_procedure)
5947 as_bad (_("Misplaced .entry. Ignored."));
5950 if (!callinfo_found)
5951 as_bad (_("Missing .callinfo."));
5953 demand_empty_rest_of_line ();
5954 within_entry_exit = TRUE;
5957 /* SOM defers building of unwind descriptors until the link phase.
5958 The assembler is responsible for creating an R_ENTRY relocation
5959 to mark the beginning of a region and hold the unwind bits, and
5960 for creating an R_EXIT relocation to mark the end of the region.
5962 FIXME. ELF should be using the same conventions! The problem
5963 is an unwind requires too much relocation space. Hmmm. Maybe
5964 if we split the unwind bits up between the relocations which
5965 denote the entry and exit points. */
5966 if (last_call_info->start_symbol != NULL)
5968 char *where = frag_more (0);
5970 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5971 NULL, (offsetT) 0, NULL,
5972 0, R_HPPA_ENTRY, e_fsel, 0, 0,
5973 (int *) &last_call_info->ci_unwind.descriptor);
5978 /* Handle a .EQU pseudo-op. */
5984 label_symbol_struct *label_symbol = pa_get_label ();
5989 symbol = label_symbol->lss_label;
5991 S_SET_VALUE (symbol, pa_parse_number (&input_line_pointer, 0));
5993 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
5994 S_SET_SEGMENT (symbol, bfd_abs_section_ptr);
5999 as_bad (_(".REG must use a label"));
6001 as_bad (_(".EQU must use a label"));
6004 pa_undefine_label ();
6005 demand_empty_rest_of_line ();
6008 /* Helper function. Does processing for the end of a function. This
6009 usually involves creating some relocations or building special
6010 symbols to mark the end of the function. */
6017 where = frag_more (0);
6020 /* Mark the end of the function, stuff away the location of the frag
6021 for the end of the function, and finally call pa_build_unwind_subspace
6022 to add an entry in the unwind table. */
6023 hppa_elf_mark_end_of_function ();
6024 pa_build_unwind_subspace (last_call_info);
6026 /* SOM defers building of unwind descriptors until the link phase.
6027 The assembler is responsible for creating an R_ENTRY relocation
6028 to mark the beginning of a region and hold the unwind bits, and
6029 for creating an R_EXIT relocation to mark the end of the region.
6031 FIXME. ELF should be using the same conventions! The problem
6032 is an unwind requires too much relocation space. Hmmm. Maybe
6033 if we split the unwind bits up between the relocations which
6034 denote the entry and exit points. */
6035 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
6037 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0,
6038 (int *) &last_call_info->ci_unwind.descriptor + 1);
6042 /* Process a .EXIT pseudo-op. */
6049 /* We must have a valid space and subspace. */
6050 pa_check_current_space_and_subspace ();
6053 if (!within_procedure)
6054 as_bad (_(".EXIT must appear within a procedure"));
6057 if (!callinfo_found)
6058 as_bad (_("Missing .callinfo"));
6061 if (!within_entry_exit)
6062 as_bad (_("No .ENTRY for this .EXIT"));
6065 within_entry_exit = FALSE;
6070 demand_empty_rest_of_line ();
6073 /* Process a .EXPORT directive. This makes functions external
6074 and provides information such as argument relocation entries
6084 name = input_line_pointer;
6085 c = get_symbol_end ();
6086 /* Make sure the given symbol exists. */
6087 if ((symbol = symbol_find_or_make (name)) == NULL)
6089 as_bad (_("Cannot define export symbol: %s\n"), name);
6090 p = input_line_pointer;
6092 input_line_pointer++;
6096 /* OK. Set the external bits and process argument relocations. */
6097 S_SET_EXTERNAL (symbol);
6098 p = input_line_pointer;
6100 if (!is_end_of_statement ())
6102 input_line_pointer++;
6103 pa_type_args (symbol, 1);
6107 demand_empty_rest_of_line ();
6110 /* Helper function to process arguments to a .EXPORT pseudo-op. */
6113 pa_type_args (symbolP, is_export)
6118 unsigned int temp, arg_reloc;
6119 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
6120 obj_symbol_type *symbol = (obj_symbol_type *) symbol_get_bfdsym (symbolP);
6122 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
6125 input_line_pointer += 8;
6126 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
6127 S_SET_SEGMENT (symbolP, bfd_abs_section_ptr);
6128 type = SYMBOL_TYPE_ABSOLUTE;
6130 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
6132 input_line_pointer += 4;
6133 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
6134 instead one should be IMPORTing/EXPORTing ENTRY types.
6136 Complain if one tries to EXPORT a CODE type since that's never
6137 done. Both GCC and HP C still try to IMPORT CODE types, so
6138 silently fix them to be ENTRY types. */
6139 if (S_IS_FUNCTION (symbolP))
6142 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
6143 S_GET_NAME (symbolP));
6145 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
6146 type = SYMBOL_TYPE_ENTRY;
6150 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
6151 type = SYMBOL_TYPE_CODE;
6154 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
6156 input_line_pointer += 4;
6157 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
6158 symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT;
6159 type = SYMBOL_TYPE_DATA;
6161 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
6163 input_line_pointer += 5;
6164 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
6165 type = SYMBOL_TYPE_ENTRY;
6167 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
6169 input_line_pointer += 9;
6170 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
6171 type = SYMBOL_TYPE_MILLICODE;
6173 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
6175 input_line_pointer += 6;
6176 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
6177 type = SYMBOL_TYPE_PLABEL;
6179 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
6181 input_line_pointer += 8;
6182 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
6183 type = SYMBOL_TYPE_PRI_PROG;
6185 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
6187 input_line_pointer += 8;
6188 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
6189 type = SYMBOL_TYPE_SEC_PROG;
6192 /* SOM requires much more information about symbol types
6193 than BFD understands. This is how we get this information
6194 to the SOM BFD backend. */
6195 #ifdef obj_set_symbol_type
6196 obj_set_symbol_type (symbol_get_bfdsym (symbolP), (int) type);
6199 /* Now that the type of the exported symbol has been handled,
6200 handle any argument relocation information. */
6201 while (!is_end_of_statement ())
6203 if (*input_line_pointer == ',')
6204 input_line_pointer++;
6205 name = input_line_pointer;
6206 c = get_symbol_end ();
6207 /* Argument sources. */
6208 if ((strncasecmp (name, "argw", 4) == 0))
6210 p = input_line_pointer;
6212 input_line_pointer++;
6213 temp = atoi (name + 4);
6214 name = input_line_pointer;
6215 c = get_symbol_end ();
6216 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
6218 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
6220 *input_line_pointer = c;
6222 /* The return value. */
6223 else if ((strncasecmp (name, "rtnval", 6)) == 0)
6225 p = input_line_pointer;
6227 input_line_pointer++;
6228 name = input_line_pointer;
6229 c = get_symbol_end ();
6230 arg_reloc = pa_build_arg_reloc (name);
6232 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
6234 *input_line_pointer = c;
6236 /* Privelege level. */
6237 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
6239 p = input_line_pointer;
6241 input_line_pointer++;
6242 temp = atoi (input_line_pointer);
6244 symbol->tc_data.ap.hppa_priv_level = temp;
6246 c = get_symbol_end ();
6247 *input_line_pointer = c;
6251 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name);
6252 p = input_line_pointer;
6255 if (!is_end_of_statement ())
6256 input_line_pointer++;
6260 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
6261 assembly file must either be defined in the assembly file, or
6262 explicitly IMPORTED from another. */
6271 name = input_line_pointer;
6272 c = get_symbol_end ();
6274 symbol = symbol_find (name);
6275 /* Ugh. We might be importing a symbol defined earlier in the file,
6276 in which case all the code below will really screw things up
6277 (set the wrong segment, symbol flags & type, etc). */
6278 if (symbol == NULL || !S_IS_DEFINED (symbol))
6280 symbol = symbol_find_or_make (name);
6281 p = input_line_pointer;
6284 if (!is_end_of_statement ())
6286 input_line_pointer++;
6287 pa_type_args (symbol, 0);
6291 /* Sigh. To be compatable with the HP assembler and to help
6292 poorly written assembly code, we assign a type based on
6293 the the current segment. Note only BSF_FUNCTION really
6294 matters, we do not need to set the full SYMBOL_TYPE_* info. */
6295 if (now_seg == text_section)
6296 symbol_get_bfdsym (symbol)->flags |= BSF_FUNCTION;
6298 /* If the section is undefined, then the symbol is undefined
6299 Since this is an import, leave the section undefined. */
6300 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
6305 /* The symbol was already defined. Just eat everything up to
6306 the end of the current statement. */
6307 while (!is_end_of_statement ())
6308 input_line_pointer++;
6311 demand_empty_rest_of_line ();
6314 /* Handle a .LABEL pseudo-op. */
6322 name = input_line_pointer;
6323 c = get_symbol_end ();
6325 if (strlen (name) > 0)
6328 p = input_line_pointer;
6333 as_warn (_("Missing label name on .LABEL"));
6336 if (!is_end_of_statement ())
6338 as_warn (_("extra .LABEL arguments ignored."));
6339 ignore_rest_of_line ();
6341 demand_empty_rest_of_line ();
6344 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
6351 /* We must have a valid space and subspace. */
6352 pa_check_current_space_and_subspace ();
6355 as_bad (_("The .LEAVE pseudo-op is not supported"));
6356 demand_empty_rest_of_line ();
6359 /* Handle a .LEVEL pseudo-op. */
6367 level = input_line_pointer;
6368 if (strncmp (level, "1.0", 3) == 0)
6370 input_line_pointer += 3;
6371 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
6372 as_warn (_("could not set architecture and machine"));
6374 else if (strncmp (level, "1.1", 3) == 0)
6376 input_line_pointer += 3;
6377 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 11))
6378 as_warn (_("could not set architecture and machine"));
6380 else if (strncmp (level, "2.0w", 4) == 0)
6382 input_line_pointer += 4;
6383 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 25))
6384 as_warn (_("could not set architecture and machine"));
6386 else if (strncmp (level, "2.0", 3) == 0)
6388 input_line_pointer += 3;
6389 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 20))
6390 as_warn (_("could not set architecture and machine"));
6394 as_bad (_("Unrecognized .LEVEL argument\n"));
6395 ignore_rest_of_line ();
6397 demand_empty_rest_of_line ();
6400 /* Handle a .ORIGIN pseudo-op. */
6407 /* We must have a valid space and subspace. */
6408 pa_check_current_space_and_subspace ();
6412 pa_undefine_label ();
6415 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
6416 is for static functions. FIXME. Should share more code with .EXPORT. */
6425 name = input_line_pointer;
6426 c = get_symbol_end ();
6428 if ((symbol = symbol_find_or_make (name)) == NULL)
6430 as_bad (_("Cannot define static symbol: %s\n"), name);
6431 p = input_line_pointer;
6433 input_line_pointer++;
6437 S_CLEAR_EXTERNAL (symbol);
6438 p = input_line_pointer;
6440 if (!is_end_of_statement ())
6442 input_line_pointer++;
6443 pa_type_args (symbol, 0);
6447 demand_empty_rest_of_line ();
6450 /* Handle a .PROC pseudo-op. It is used to mark the beginning
6451 of a procedure from a syntatical point of view. */
6457 struct call_info *call_info;
6460 /* We must have a valid space and subspace. */
6461 pa_check_current_space_and_subspace ();
6464 if (within_procedure)
6465 as_fatal (_("Nested procedures"));
6467 /* Reset global variables for new procedure. */
6468 callinfo_found = FALSE;
6469 within_procedure = TRUE;
6471 /* Create another call_info structure. */
6472 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
6475 as_fatal (_("Cannot allocate unwind descriptor\n"));
6477 memset (call_info, 0, sizeof (struct call_info));
6479 call_info->ci_next = NULL;
6481 if (call_info_root == NULL)
6483 call_info_root = call_info;
6484 last_call_info = call_info;
6488 last_call_info->ci_next = call_info;
6489 last_call_info = call_info;
6492 /* set up defaults on call_info structure */
6494 call_info->ci_unwind.descriptor.cannot_unwind = 0;
6495 call_info->ci_unwind.descriptor.region_desc = 1;
6496 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
6498 /* If we got a .PROC pseudo-op, we know that the function is defined
6499 locally. Make sure it gets into the symbol table. */
6501 label_symbol_struct *label_symbol = pa_get_label ();
6505 if (label_symbol->lss_label)
6507 last_call_info->start_symbol = label_symbol->lss_label;
6508 symbol_get_bfdsym (label_symbol->lss_label)->flags |= BSF_FUNCTION;
6511 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6514 last_call_info->start_symbol = NULL;
6517 demand_empty_rest_of_line ();
6520 /* Process the syntatical end of a procedure. Make sure all the
6521 appropriate pseudo-ops were found within the procedure. */
6529 /* We must have a valid space and subspace. */
6530 pa_check_current_space_and_subspace ();
6533 /* If we are within a procedure definition, make sure we've
6534 defined a label for the procedure; handle case where the
6535 label was defined after the .PROC directive.
6537 Note there's not need to diddle with the segment or fragment
6538 for the label symbol in this case. We have already switched
6539 into the new $CODE$ subspace at this point. */
6540 if (within_procedure && last_call_info->start_symbol == NULL)
6542 label_symbol_struct *label_symbol = pa_get_label ();
6546 if (label_symbol->lss_label)
6548 last_call_info->start_symbol = label_symbol->lss_label;
6549 symbol_get_bfdsym (label_symbol->lss_label)->flags
6552 /* Also handle allocation of a fixup to hold the unwind
6553 information when the label appears after the proc/procend. */
6554 if (within_entry_exit)
6556 char *where = frag_more (0);
6558 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
6559 NULL, (offsetT) 0, NULL,
6560 0, R_HPPA_ENTRY, e_fsel, 0, 0,
6561 (int *) &last_call_info->ci_unwind.descriptor);
6566 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6569 as_bad (_("Missing function name for .PROC"));
6572 if (!within_procedure)
6573 as_bad (_("misplaced .procend"));
6575 if (!callinfo_found)
6576 as_bad (_("Missing .callinfo for this procedure"));
6578 if (within_entry_exit)
6579 as_bad (_("Missing .EXIT for a .ENTRY"));
6582 /* ELF needs to mark the end of each function so that it can compute
6583 the size of the function (apparently its needed in the symbol table). */
6584 hppa_elf_mark_end_of_function ();
6587 within_procedure = FALSE;
6588 demand_empty_rest_of_line ();
6589 pa_undefine_label ();
6592 /* If VALUE is an exact power of two between zero and 2^31, then
6593 return log2 (VALUE). Else return -1. */
6601 while ((1 << shift) != value && shift < 32)
6612 /* Check to make sure we have a valid space and subspace. */
6615 pa_check_current_space_and_subspace ()
6617 if (current_space == NULL)
6618 as_fatal (_("Not in a space.\n"));
6620 if (current_subspace == NULL)
6621 as_fatal (_("Not in a subspace.\n"));
6624 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
6625 then create a new space entry to hold the information specified
6626 by the parameters to the .SPACE directive. */
6628 static sd_chain_struct *
6629 pa_parse_space_stmt (space_name, create_flag)
6633 char *name, *ptemp, c;
6634 char loadable, defined, private, sort;
6636 asection *seg = NULL;
6637 sd_chain_struct *space;
6639 /* load default values */
6645 if (strcmp (space_name, "$TEXT$") == 0)
6647 seg = pa_def_spaces[0].segment;
6648 defined = pa_def_spaces[0].defined;
6649 private = pa_def_spaces[0].private;
6650 sort = pa_def_spaces[0].sort;
6651 spnum = pa_def_spaces[0].spnum;
6653 else if (strcmp (space_name, "$PRIVATE$") == 0)
6655 seg = pa_def_spaces[1].segment;
6656 defined = pa_def_spaces[1].defined;
6657 private = pa_def_spaces[1].private;
6658 sort = pa_def_spaces[1].sort;
6659 spnum = pa_def_spaces[1].spnum;
6662 if (!is_end_of_statement ())
6664 print_errors = FALSE;
6665 ptemp = input_line_pointer + 1;
6666 /* First see if the space was specified as a number rather than
6667 as a name. According to the PA assembly manual the rest of
6668 the line should be ignored. */
6669 temp = pa_parse_number (&ptemp, 0);
6673 input_line_pointer = ptemp;
6677 while (!is_end_of_statement ())
6679 input_line_pointer++;
6680 name = input_line_pointer;
6681 c = get_symbol_end ();
6682 if ((strncasecmp (name, "spnum", 5) == 0))
6684 *input_line_pointer = c;
6685 input_line_pointer++;
6686 spnum = get_absolute_expression ();
6688 else if ((strncasecmp (name, "sort", 4) == 0))
6690 *input_line_pointer = c;
6691 input_line_pointer++;
6692 sort = get_absolute_expression ();
6694 else if ((strncasecmp (name, "unloadable", 10) == 0))
6696 *input_line_pointer = c;
6699 else if ((strncasecmp (name, "notdefined", 10) == 0))
6701 *input_line_pointer = c;
6704 else if ((strncasecmp (name, "private", 7) == 0))
6706 *input_line_pointer = c;
6711 as_bad (_("Invalid .SPACE argument"));
6712 *input_line_pointer = c;
6713 if (!is_end_of_statement ())
6714 input_line_pointer++;
6718 print_errors = TRUE;
6721 if (create_flag && seg == NULL)
6722 seg = subseg_new (space_name, 0);
6724 /* If create_flag is nonzero, then create the new space with
6725 the attributes computed above. Else set the values in
6726 an already existing space -- this can only happen for
6727 the first occurence of a built-in space. */
6729 space = create_new_space (space_name, spnum, loadable, defined,
6730 private, sort, seg, 1);
6733 space = is_defined_space (space_name);
6734 SPACE_SPNUM (space) = spnum;
6735 SPACE_DEFINED (space) = defined & 1;
6736 SPACE_USER_DEFINED (space) = 1;
6739 #ifdef obj_set_section_attributes
6740 obj_set_section_attributes (seg, defined, private, sort, spnum);
6746 /* Handle a .SPACE pseudo-op; this switches the current space to the
6747 given space, creating the new space if necessary. */
6753 char *name, c, *space_name, *save_s;
6755 sd_chain_struct *sd_chain;
6757 if (within_procedure)
6759 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6760 ignore_rest_of_line ();
6764 /* Check for some of the predefined spaces. FIXME: most of the code
6765 below is repeated several times, can we extract the common parts
6766 and place them into a subroutine or something similar? */
6767 /* FIXME Is this (and the next IF stmt) really right?
6768 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6769 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
6771 input_line_pointer += 6;
6772 sd_chain = is_defined_space ("$TEXT$");
6773 if (sd_chain == NULL)
6774 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
6775 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6776 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
6778 current_space = sd_chain;
6779 subseg_set (text_section, sd_chain->sd_last_subseg);
6781 = pa_subsegment_to_subspace (text_section,
6782 sd_chain->sd_last_subseg);
6783 demand_empty_rest_of_line ();
6786 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
6788 input_line_pointer += 9;
6789 sd_chain = is_defined_space ("$PRIVATE$");
6790 if (sd_chain == NULL)
6791 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
6792 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6793 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
6795 current_space = sd_chain;
6796 subseg_set (data_section, sd_chain->sd_last_subseg);
6798 = pa_subsegment_to_subspace (data_section,
6799 sd_chain->sd_last_subseg);
6800 demand_empty_rest_of_line ();
6803 if (!strncasecmp (input_line_pointer,
6804 GDB_DEBUG_SPACE_NAME,
6805 strlen (GDB_DEBUG_SPACE_NAME)))
6807 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
6808 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
6809 if (sd_chain == NULL)
6810 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
6811 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6812 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
6814 current_space = sd_chain;
6817 asection *gdb_section
6818 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
6820 subseg_set (gdb_section, sd_chain->sd_last_subseg);
6822 = pa_subsegment_to_subspace (gdb_section,
6823 sd_chain->sd_last_subseg);
6825 demand_empty_rest_of_line ();
6829 /* It could be a space specified by number. */
6831 save_s = input_line_pointer;
6832 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
6834 if ((sd_chain = pa_find_space_by_number (temp)))
6836 current_space = sd_chain;
6838 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
6840 = pa_subsegment_to_subspace (sd_chain->sd_seg,
6841 sd_chain->sd_last_subseg);
6842 demand_empty_rest_of_line ();
6847 /* Not a number, attempt to create a new space. */
6849 input_line_pointer = save_s;
6850 name = input_line_pointer;
6851 c = get_symbol_end ();
6852 space_name = xmalloc (strlen (name) + 1);
6853 strcpy (space_name, name);
6854 *input_line_pointer = c;
6856 sd_chain = pa_parse_space_stmt (space_name, 1);
6857 current_space = sd_chain;
6859 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
6860 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
6861 sd_chain->sd_last_subseg);
6862 demand_empty_rest_of_line ();
6866 /* Switch to a new space. (I think). FIXME. */
6875 sd_chain_struct *space;
6877 name = input_line_pointer;
6878 c = get_symbol_end ();
6879 space = is_defined_space (name);
6883 md_number_to_chars (p, SPACE_SPNUM (space), 4);
6886 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name);
6888 *input_line_pointer = c;
6889 demand_empty_rest_of_line ();
6892 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6893 given subspace, creating the new subspace if necessary.
6895 FIXME. Should mirror pa_space more closely, in particular how
6896 they're broken up into subroutines. */
6899 pa_subspace (create_new)
6902 char *name, *ss_name, c;
6903 char loadable, code_only, common, dup_common, zero, sort;
6904 int i, access, space_index, alignment, quadrant, applicable, flags;
6905 sd_chain_struct *space;
6906 ssd_chain_struct *ssd;
6909 if (current_space == NULL)
6910 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6912 if (within_procedure)
6914 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6915 ignore_rest_of_line ();
6919 name = input_line_pointer;
6920 c = get_symbol_end ();
6921 ss_name = xmalloc (strlen (name) + 1);
6922 strcpy (ss_name, name);
6923 *input_line_pointer = c;
6925 /* Load default values. */
6937 space = current_space;
6941 ssd = is_defined_subspace (ss_name);
6942 /* Allow user to override the builtin attributes of subspaces. But
6943 only allow the attributes to be changed once! */
6944 if (ssd && SUBSPACE_DEFINED (ssd))
6946 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
6947 current_subspace = ssd;
6948 if (!is_end_of_statement ())
6949 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6950 demand_empty_rest_of_line ();
6955 /* A new subspace. Load default values if it matches one of
6956 the builtin subspaces. */
6958 while (pa_def_subspaces[i].name)
6960 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
6962 loadable = pa_def_subspaces[i].loadable;
6963 common = pa_def_subspaces[i].common;
6964 dup_common = pa_def_subspaces[i].dup_common;
6965 code_only = pa_def_subspaces[i].code_only;
6966 zero = pa_def_subspaces[i].zero;
6967 space_index = pa_def_subspaces[i].space_index;
6968 alignment = pa_def_subspaces[i].alignment;
6969 quadrant = pa_def_subspaces[i].quadrant;
6970 access = pa_def_subspaces[i].access;
6971 sort = pa_def_subspaces[i].sort;
6978 /* We should be working with a new subspace now. Fill in
6979 any information as specified by the user. */
6980 if (!is_end_of_statement ())
6982 input_line_pointer++;
6983 while (!is_end_of_statement ())
6985 name = input_line_pointer;
6986 c = get_symbol_end ();
6987 if ((strncasecmp (name, "quad", 4) == 0))
6989 *input_line_pointer = c;
6990 input_line_pointer++;
6991 quadrant = get_absolute_expression ();
6993 else if ((strncasecmp (name, "align", 5) == 0))
6995 *input_line_pointer = c;
6996 input_line_pointer++;
6997 alignment = get_absolute_expression ();
6998 if (log2 (alignment) == -1)
7000 as_bad (_("Alignment must be a power of 2"));
7004 else if ((strncasecmp (name, "access", 6) == 0))
7006 *input_line_pointer = c;
7007 input_line_pointer++;
7008 access = get_absolute_expression ();
7010 else if ((strncasecmp (name, "sort", 4) == 0))
7012 *input_line_pointer = c;
7013 input_line_pointer++;
7014 sort = get_absolute_expression ();
7016 else if ((strncasecmp (name, "code_only", 9) == 0))
7018 *input_line_pointer = c;
7021 else if ((strncasecmp (name, "unloadable", 10) == 0))
7023 *input_line_pointer = c;
7026 else if ((strncasecmp (name, "common", 6) == 0))
7028 *input_line_pointer = c;
7031 else if ((strncasecmp (name, "dup_comm", 8) == 0))
7033 *input_line_pointer = c;
7036 else if ((strncasecmp (name, "zero", 4) == 0))
7038 *input_line_pointer = c;
7041 else if ((strncasecmp (name, "first", 5) == 0))
7042 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
7044 as_bad (_("Invalid .SUBSPACE argument"));
7045 if (!is_end_of_statement ())
7046 input_line_pointer++;
7050 /* Compute a reasonable set of BFD flags based on the information
7051 in the .subspace directive. */
7052 applicable = bfd_applicable_section_flags (stdoutput);
7055 flags |= (SEC_ALLOC | SEC_LOAD);
7058 if (common || dup_common)
7059 flags |= SEC_IS_COMMON;
7061 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
7063 /* This is a zero-filled subspace (eg BSS). */
7065 flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
7067 applicable &= flags;
7069 /* If this is an existing subspace, then we want to use the
7070 segment already associated with the subspace.
7072 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
7073 lots of sections. It might be a problem in the PA ELF
7074 code, I do not know yet. For now avoid creating anything
7075 but the "standard" sections for ELF. */
7077 section = subseg_force_new (ss_name, 0);
7079 section = ssd->ssd_seg;
7081 section = subseg_new (ss_name, 0);
7084 seg_info (section)->bss = 1;
7086 /* Now set the flags. */
7087 bfd_set_section_flags (stdoutput, section, applicable);
7089 /* Record any alignment request for this section. */
7090 record_alignment (section, log2 (alignment));
7092 /* Set the starting offset for this section. */
7093 bfd_set_section_vma (stdoutput, section,
7094 pa_subspace_start (space, quadrant));
7096 /* Now that all the flags are set, update an existing subspace,
7097 or create a new one. */
7100 current_subspace = update_subspace (space, ss_name, loadable,
7101 code_only, common, dup_common,
7102 sort, zero, access, space_index,
7103 alignment, quadrant,
7106 current_subspace = create_new_subspace (space, ss_name, loadable,
7108 dup_common, zero, sort,
7109 access, space_index,
7110 alignment, quadrant, section);
7112 demand_empty_rest_of_line ();
7113 current_subspace->ssd_seg = section;
7114 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
7116 SUBSPACE_DEFINED (current_subspace) = 1;
7120 /* Create default space and subspace dictionaries. */
7127 space_dict_root = NULL;
7128 space_dict_last = NULL;
7131 while (pa_def_spaces[i].name)
7135 /* Pick the right name to use for the new section. */
7136 name = pa_def_spaces[i].name;
7138 pa_def_spaces[i].segment = subseg_new (name, 0);
7139 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
7140 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
7141 pa_def_spaces[i].private, pa_def_spaces[i].sort,
7142 pa_def_spaces[i].segment, 0);
7147 while (pa_def_subspaces[i].name)
7150 int applicable, subsegment;
7151 asection *segment = NULL;
7152 sd_chain_struct *space;
7154 /* Pick the right name for the new section and pick the right
7155 subsegment number. */
7156 name = pa_def_subspaces[i].name;
7159 /* Create the new section. */
7160 segment = subseg_new (name, subsegment);
7163 /* For SOM we want to replace the standard .text, .data, and .bss
7164 sections with our own. We also want to set BFD flags for
7165 all the built-in subspaces. */
7166 if (!strcmp (pa_def_subspaces[i].name, "$CODE$"))
7168 text_section = segment;
7169 applicable = bfd_applicable_section_flags (stdoutput);
7170 bfd_set_section_flags (stdoutput, segment,
7171 applicable & (SEC_ALLOC | SEC_LOAD
7172 | SEC_RELOC | SEC_CODE
7174 | SEC_HAS_CONTENTS));
7176 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$"))
7178 data_section = segment;
7179 applicable = bfd_applicable_section_flags (stdoutput);
7180 bfd_set_section_flags (stdoutput, segment,
7181 applicable & (SEC_ALLOC | SEC_LOAD
7183 | SEC_HAS_CONTENTS));
7187 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$"))
7189 bss_section = segment;
7190 applicable = bfd_applicable_section_flags (stdoutput);
7191 bfd_set_section_flags (stdoutput, segment,
7192 applicable & SEC_ALLOC);
7194 else if (!strcmp (pa_def_subspaces[i].name, "$LIT$"))
7196 applicable = bfd_applicable_section_flags (stdoutput);
7197 bfd_set_section_flags (stdoutput, segment,
7198 applicable & (SEC_ALLOC | SEC_LOAD
7201 | SEC_HAS_CONTENTS));
7203 else if (!strcmp (pa_def_subspaces[i].name, "$MILLICODE$"))
7205 applicable = bfd_applicable_section_flags (stdoutput);
7206 bfd_set_section_flags (stdoutput, segment,
7207 applicable & (SEC_ALLOC | SEC_LOAD
7210 | SEC_HAS_CONTENTS));
7212 else if (!strcmp (pa_def_subspaces[i].name, "$UNWIND$"))
7214 applicable = bfd_applicable_section_flags (stdoutput);
7215 bfd_set_section_flags (stdoutput, segment,
7216 applicable & (SEC_ALLOC | SEC_LOAD
7219 | SEC_HAS_CONTENTS));
7222 /* Find the space associated with this subspace. */
7223 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
7224 def_space_index].segment);
7227 as_fatal (_("Internal error: Unable to find containing space for %s."),
7228 pa_def_subspaces[i].name);
7231 create_new_subspace (space, name,
7232 pa_def_subspaces[i].loadable,
7233 pa_def_subspaces[i].code_only,
7234 pa_def_subspaces[i].common,
7235 pa_def_subspaces[i].dup_common,
7236 pa_def_subspaces[i].zero,
7237 pa_def_subspaces[i].sort,
7238 pa_def_subspaces[i].access,
7239 pa_def_subspaces[i].space_index,
7240 pa_def_subspaces[i].alignment,
7241 pa_def_subspaces[i].quadrant,
7249 /* Create a new space NAME, with the appropriate flags as defined
7250 by the given parameters. */
7252 static sd_chain_struct *
7253 create_new_space (name, spnum, loadable, defined, private,
7254 sort, seg, user_defined)
7264 sd_chain_struct *chain_entry;
7266 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
7268 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
7271 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
7272 strcpy (SPACE_NAME (chain_entry), name);
7273 SPACE_DEFINED (chain_entry) = defined;
7274 SPACE_USER_DEFINED (chain_entry) = user_defined;
7275 SPACE_SPNUM (chain_entry) = spnum;
7277 chain_entry->sd_seg = seg;
7278 chain_entry->sd_last_subseg = -1;
7279 chain_entry->sd_subspaces = NULL;
7280 chain_entry->sd_next = NULL;
7282 /* Find spot for the new space based on its sort key. */
7283 if (!space_dict_last)
7284 space_dict_last = chain_entry;
7286 if (space_dict_root == NULL)
7287 space_dict_root = chain_entry;
7290 sd_chain_struct *chain_pointer;
7291 sd_chain_struct *prev_chain_pointer;
7293 chain_pointer = space_dict_root;
7294 prev_chain_pointer = NULL;
7296 while (chain_pointer)
7298 prev_chain_pointer = chain_pointer;
7299 chain_pointer = chain_pointer->sd_next;
7302 /* At this point we've found the correct place to add the new
7303 entry. So add it and update the linked lists as appropriate. */
7304 if (prev_chain_pointer)
7306 chain_entry->sd_next = chain_pointer;
7307 prev_chain_pointer->sd_next = chain_entry;
7311 space_dict_root = chain_entry;
7312 chain_entry->sd_next = chain_pointer;
7315 if (chain_entry->sd_next == NULL)
7316 space_dict_last = chain_entry;
7319 /* This is here to catch predefined spaces which do not get
7320 modified by the user's input. Another call is found at
7321 the bottom of pa_parse_space_stmt to handle cases where
7322 the user modifies a predefined space. */
7323 #ifdef obj_set_section_attributes
7324 obj_set_section_attributes (seg, defined, private, sort, spnum);
7330 /* Create a new subspace NAME, with the appropriate flags as defined
7331 by the given parameters.
7333 Add the new subspace to the subspace dictionary chain in numerical
7334 order as defined by the SORT entries. */
7336 static ssd_chain_struct *
7337 create_new_subspace (space, name, loadable, code_only, common,
7338 dup_common, is_zero, sort, access, space_index,
7339 alignment, quadrant, seg)
7340 sd_chain_struct *space;
7342 int loadable, code_only, common, dup_common, is_zero;
7350 ssd_chain_struct *chain_entry;
7352 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
7354 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name);
7356 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
7357 strcpy (SUBSPACE_NAME (chain_entry), name);
7359 /* Initialize subspace_defined. When we hit a .subspace directive
7360 we'll set it to 1 which "locks-in" the subspace attributes. */
7361 SUBSPACE_DEFINED (chain_entry) = 0;
7363 chain_entry->ssd_subseg = 0;
7364 chain_entry->ssd_seg = seg;
7365 chain_entry->ssd_next = NULL;
7367 /* Find spot for the new subspace based on its sort key. */
7368 if (space->sd_subspaces == NULL)
7369 space->sd_subspaces = chain_entry;
7372 ssd_chain_struct *chain_pointer;
7373 ssd_chain_struct *prev_chain_pointer;
7375 chain_pointer = space->sd_subspaces;
7376 prev_chain_pointer = NULL;
7378 while (chain_pointer)
7380 prev_chain_pointer = chain_pointer;
7381 chain_pointer = chain_pointer->ssd_next;
7384 /* Now we have somewhere to put the new entry. Insert it and update
7386 if (prev_chain_pointer)
7388 chain_entry->ssd_next = chain_pointer;
7389 prev_chain_pointer->ssd_next = chain_entry;
7393 space->sd_subspaces = chain_entry;
7394 chain_entry->ssd_next = chain_pointer;
7398 #ifdef obj_set_subsection_attributes
7399 obj_set_subsection_attributes (seg, space->sd_seg, access,
7406 /* Update the information for the given subspace based upon the
7407 various arguments. Return the modified subspace chain entry. */
7409 static ssd_chain_struct *
7410 update_subspace (space, name, loadable, code_only, common, dup_common, sort,
7411 zero, access, space_index, alignment, quadrant, section)
7412 sd_chain_struct *space;
7426 ssd_chain_struct *chain_entry;
7428 chain_entry = is_defined_subspace (name);
7430 #ifdef obj_set_subsection_attributes
7431 obj_set_subsection_attributes (section, space->sd_seg, access,
7438 /* Return the space chain entry for the space with the name NAME or
7439 NULL if no such space exists. */
7441 static sd_chain_struct *
7442 is_defined_space (name)
7445 sd_chain_struct *chain_pointer;
7447 for (chain_pointer = space_dict_root;
7449 chain_pointer = chain_pointer->sd_next)
7451 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
7452 return chain_pointer;
7455 /* No mapping from segment to space was found. Return NULL. */
7459 /* Find and return the space associated with the given seg. If no mapping
7460 from the given seg to a space is found, then return NULL.
7462 Unlike subspaces, the number of spaces is not expected to grow much,
7463 so a linear exhaustive search is OK here. */
7465 static sd_chain_struct *
7466 pa_segment_to_space (seg)
7469 sd_chain_struct *space_chain;
7471 /* Walk through each space looking for the correct mapping. */
7472 for (space_chain = space_dict_root;
7474 space_chain = space_chain->sd_next)
7476 if (space_chain->sd_seg == seg)
7480 /* Mapping was not found. Return NULL. */
7484 /* Return the space chain entry for the subspace with the name NAME or
7485 NULL if no such subspace exists.
7487 Uses a linear search through all the spaces and subspaces, this may
7488 not be appropriate if we ever being placing each function in its
7491 static ssd_chain_struct *
7492 is_defined_subspace (name)
7495 sd_chain_struct *space_chain;
7496 ssd_chain_struct *subspace_chain;
7498 /* Walk through each space. */
7499 for (space_chain = space_dict_root;
7501 space_chain = space_chain->sd_next)
7503 /* Walk through each subspace looking for a name which matches. */
7504 for (subspace_chain = space_chain->sd_subspaces;
7506 subspace_chain = subspace_chain->ssd_next)
7507 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
7508 return subspace_chain;
7511 /* Subspace wasn't found. Return NULL. */
7515 /* Find and return the subspace associated with the given seg. If no
7516 mapping from the given seg to a subspace is found, then return NULL.
7518 If we ever put each procedure/function within its own subspace
7519 (to make life easier on the compiler and linker), then this will have
7520 to become more efficient. */
7522 static ssd_chain_struct *
7523 pa_subsegment_to_subspace (seg, subseg)
7527 sd_chain_struct *space_chain;
7528 ssd_chain_struct *subspace_chain;
7530 /* Walk through each space. */
7531 for (space_chain = space_dict_root;
7533 space_chain = space_chain->sd_next)
7535 if (space_chain->sd_seg == seg)
7537 /* Walk through each subspace within each space looking for
7538 the correct mapping. */
7539 for (subspace_chain = space_chain->sd_subspaces;
7541 subspace_chain = subspace_chain->ssd_next)
7542 if (subspace_chain->ssd_subseg == (int) subseg)
7543 return subspace_chain;
7547 /* No mapping from subsegment to subspace found. Return NULL. */
7551 /* Given a number, try and find a space with the name number.
7553 Return a pointer to a space dictionary chain entry for the space
7554 that was found or NULL on failure. */
7556 static sd_chain_struct *
7557 pa_find_space_by_number (number)
7560 sd_chain_struct *space_chain;
7562 for (space_chain = space_dict_root;
7564 space_chain = space_chain->sd_next)
7566 if (SPACE_SPNUM (space_chain) == (unsigned int) number)
7570 /* No appropriate space found. Return NULL. */
7574 /* Return the starting address for the given subspace. If the starting
7575 address is unknown then return zero. */
7578 pa_subspace_start (space, quadrant)
7579 sd_chain_struct *space;
7582 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
7583 is not correct for the PA OSF1 port. */
7584 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
7586 else if (space->sd_seg == data_section && quadrant == 1)
7593 /* FIXME. Needs documentation. */
7595 pa_next_subseg (space)
7596 sd_chain_struct *space;
7599 space->sd_last_subseg++;
7600 return space->sd_last_subseg;
7604 /* Helper function for pa_stringer. Used to find the end of
7611 unsigned int c = *s & CHAR_MASK;
7614 /* We must have a valid space and subspace. */
7615 pa_check_current_space_and_subspace ();
7629 /* Handle a .STRING type pseudo-op. */
7632 pa_stringer (append_zero)
7635 char *s, num_buf[4];
7639 /* Preprocess the string to handle PA-specific escape sequences.
7640 For example, \xDD where DD is a hexidecimal number should be
7641 changed to \OOO where OOO is an octal number. */
7643 /* Skip the opening quote. */
7644 s = input_line_pointer + 1;
7646 while (is_a_char (c = pa_stringer_aux (s++)))
7653 /* Handle \x<num>. */
7656 unsigned int number;
7661 /* Get pas the 'x'. */
7663 for (num_digit = 0, number = 0, dg = *s;
7665 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
7666 || (dg >= 'A' && dg <= 'F'));
7670 number = number * 16 + dg - '0';
7671 else if (dg >= 'a' && dg <= 'f')
7672 number = number * 16 + dg - 'a' + 10;
7674 number = number * 16 + dg - 'A' + 10;
7684 sprintf (num_buf, "%02o", number);
7687 sprintf (num_buf, "%03o", number);
7690 for (i = 0; i <= num_digit; i++)
7691 s_start[i] = num_buf[i];
7695 /* This might be a "\"", skip over the escaped char. */
7702 stringer (append_zero);
7703 pa_undefine_label ();
7706 /* Handle a .VERSION pseudo-op. */
7713 pa_undefine_label ();
7718 /* Handle a .COMPILER pseudo-op. */
7721 pa_compiler (unused)
7724 obj_som_compiler (0);
7725 pa_undefine_label ();
7730 /* Handle a .COPYRIGHT pseudo-op. */
7733 pa_copyright (unused)
7737 pa_undefine_label ();
7740 /* Just like a normal cons, but when finished we have to undefine
7741 the latest space label. */
7748 pa_undefine_label ();
7751 /* Switch to the data space. As usual delete our label. */
7758 current_space = is_defined_space ("$PRIVATE$");
7760 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
7763 pa_undefine_label ();
7766 /* Like float_cons, but we need to undefine our label. */
7769 pa_float_cons (float_type)
7772 float_cons (float_type);
7773 pa_undefine_label ();
7776 /* Like s_fill, but delete our label when finished. */
7783 /* We must have a valid space and subspace. */
7784 pa_check_current_space_and_subspace ();
7788 pa_undefine_label ();
7791 /* Like lcomm, but delete our label when finished. */
7794 pa_lcomm (needs_align)
7798 /* We must have a valid space and subspace. */
7799 pa_check_current_space_and_subspace ();
7802 s_lcomm (needs_align);
7803 pa_undefine_label ();
7806 /* Like lsym, but delete our label when finished. */
7813 /* We must have a valid space and subspace. */
7814 pa_check_current_space_and_subspace ();
7818 pa_undefine_label ();
7821 /* Switch to the text space. Like s_text, but delete our
7822 label when finished. */
7828 current_space = is_defined_space ("$TEXT$");
7830 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
7834 pa_undefine_label ();
7837 /* On the PA relocations which involve function symbols must not be
7838 adjusted. This so that the linker can know when/how to create argument
7839 relocation stubs for indirect calls and calls to static functions.
7841 "T" field selectors create DLT relative fixups for accessing
7842 globals and statics in PIC code; each DLT relative fixup creates
7843 an entry in the DLT table. The entries contain the address of
7844 the final target (eg accessing "foo" would create a DLT entry
7845 with the address of "foo").
7847 Unfortunately, the HP linker doesn't take into account any addend
7848 when generating the DLT; so accessing $LIT$+8 puts the address of
7849 $LIT$ into the DLT rather than the address of $LIT$+8.
7851 The end result is we can't perform relocation symbol reductions for
7852 any fixup which creates entries in the DLT (eg they use "T" field
7855 Reject reductions involving symbols with external scope; such
7856 reductions make life a living hell for object file editors.
7858 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7859 the code space. The SOM BFD backend doesn't know how to pull the
7860 right bits out of an instruction. */
7863 hppa_fix_adjustable (fixp)
7866 struct hppa_fix_struct *hppa_fix;
7868 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
7871 /* Reject reductions of symbols in 32bit relocs. */
7872 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
7875 /* Reject reductions of symbols in sym1-sym2 expressions when
7876 the fixup will occur in a CODE subspace.
7878 XXX FIXME: Long term we probably want to reject all of these;
7879 for example reducing in the debug section would lose if we ever
7880 supported using the optimizing hp linker. */
7883 && (hppa_fix->segment->flags & SEC_CODE))
7885 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
7886 symbol_mark_used_in_reloc (fixp->fx_subsy);
7890 /* We can't adjust any relocs that use LR% and RR% field selectors.
7891 That confuses the HP linker. */
7892 if (hppa_fix->fx_r_field == e_lrsel
7893 || hppa_fix->fx_r_field == e_rrsel
7894 || hppa_fix->fx_r_field == e_nlrsel)
7898 /* Reject reductions of symbols in DLT relative relocs,
7899 relocations with plabels. */
7900 if (hppa_fix->fx_r_field == e_tsel
7901 || hppa_fix->fx_r_field == e_ltsel
7902 || hppa_fix->fx_r_field == e_rtsel
7903 || hppa_fix->fx_r_field == e_psel
7904 || hppa_fix->fx_r_field == e_rpsel
7905 || hppa_fix->fx_r_field == e_lpsel)
7908 if (fixp->fx_addsy && S_IS_EXTERNAL (fixp->fx_addsy))
7911 /* Reject absolute calls (jumps). */
7912 if (hppa_fix->fx_r_type == R_HPPA_ABS_CALL)
7915 /* Reject reductions of function symbols. */
7916 if (fixp->fx_addsy == 0 || ! S_IS_FUNCTION (fixp->fx_addsy))
7922 /* Return nonzero if the fixup in FIXP will require a relocation,
7923 even it if appears that the fixup could be completely handled
7927 hppa_force_relocation (fixp)
7930 struct hppa_fix_struct *hppa_fixp;
7933 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
7935 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT
7936 || fixp->fx_r_type == R_HPPA_BEGIN_BRTAB
7937 || fixp->fx_r_type == R_HPPA_END_BRTAB
7938 || fixp->fx_r_type == R_HPPA_BEGIN_TRY
7939 || fixp->fx_r_type == R_HPPA_END_TRY
7940 || (fixp->fx_addsy != NULL && fixp->fx_subsy != NULL
7941 && (hppa_fixp->segment->flags & SEC_CODE) != 0))
7945 #define arg_reloc_stub_needed(CALLER, CALLEE) \
7946 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7949 /* It is necessary to force PC-relative calls/jumps to have a relocation
7950 entry if they're going to need either a argument relocation or long
7951 call stub. FIXME. Can't we need the same for absolute calls? */
7952 if (fixp->fx_pcrel && fixp->fx_addsy
7953 && (arg_reloc_stub_needed ((long) ((obj_symbol_type *)
7954 symbol_get_bfdsym (fixp->fx_addsy))->tc_data.ap.hppa_arg_reloc,
7955 hppa_fixp->fx_arg_reloc)))
7958 distance = (fixp->fx_offset + S_GET_VALUE (fixp->fx_addsy)
7959 - md_pcrel_from (fixp));
7960 /* Now check and see if we're going to need a long-branch stub. */
7961 if (fixp->fx_r_type == R_HPPA_PCREL_CALL
7962 && (distance > 262143 || distance < -262144))
7965 if (fixp->fx_r_type == R_HPPA_ABS_CALL)
7967 #undef arg_reloc_stub_needed
7969 /* No need (yet) to force another relocations to be emitted. */
7973 /* Now for some ELF specific code. FIXME. */
7975 /* Mark the end of a function so that it's possible to compute
7976 the size of the function in hppa_elf_final_processing. */
7979 hppa_elf_mark_end_of_function ()
7981 /* ELF does not have EXIT relocations. All we do is create a
7982 temporary symbol marking the end of the function. */
7983 char *name = (char *)
7984 xmalloc (strlen ("L$\001end_") +
7985 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
7991 strcpy (name, "L$\001end_");
7992 strcat (name, S_GET_NAME (last_call_info->start_symbol));
7994 /* If we have a .exit followed by a .procend, then the
7995 symbol will have already been defined. */
7996 symbolP = symbol_find (name);
7999 /* The symbol has already been defined! This can
8000 happen if we have a .exit followed by a .procend.
8002 This is *not* an error. All we want to do is free
8003 the memory we just allocated for the name and continue. */
8008 /* symbol value should be the offset of the
8009 last instruction of the function */
8010 symbolP = symbol_new (name, now_seg, (valueT) (frag_now_fix () - 4),
8014 S_CLEAR_EXTERNAL (symbolP);
8015 symbol_table_insert (symbolP);
8019 last_call_info->end_symbol = symbolP;
8021 as_bad (_("Symbol '%s' could not be created."), name);
8025 as_bad (_("No memory for symbol name."));
8029 /* For ELF, this function serves one purpose: to setup the st_size
8030 field of STT_FUNC symbols. To do this, we need to scan the
8031 call_info structure list, determining st_size in by taking the
8032 difference in the address of the beginning/end marker symbols. */
8035 elf_hppa_final_processing ()
8037 struct call_info *call_info_pointer;
8039 for (call_info_pointer = call_info_root;
8041 call_info_pointer = call_info_pointer->ci_next)
8043 elf_symbol_type *esym
8044 = ((elf_symbol_type *)
8045 symbol_get_bfdsym (call_info_pointer->start_symbol));
8046 esym->internal_elf_sym.st_size =
8047 S_GET_VALUE (call_info_pointer->end_symbol)
8048 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
8056 if (debug_type == DEBUG_DWARF2)