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* format.c (bfd_check_format_matches): Initialize matching_vector
[thirdparty/binutils-gdb.git] / gas / config / tc-hppa.c
CommitLineData
025b0302
ME		 1/* tc-hppa.c -- Assemble for the PA
2 Copyright (C) 1989 Free Software Foundation, Inc.
3
8f78d0e9 4 This file is part of GAS, the GNU Assembler.
025b0302 5
8f78d0e9
KR		 6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 1, or (at your option)
9 any later version.
025b0302 10
8f78d0e9
KR		 11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
025b0302 15
8f78d0e9
KR		 16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
025b0302
ME		 19
20
8f78d0e9
KR		 21/* HP PA-RISC support was contributed by the Center for Software Science
22 at the University of Utah. */
025b0302
ME		 23
24#include <stdio.h>
25#include <ctype.h>
26
27#include "as.h"
28#include "subsegs.h"
29
5cf4cd1b 30#include "../bfd/libhppa.h"
8f78d0e9 31#include "../bfd/libbfd.h"
5cf4cd1b 32
8f78d0e9
KR		 33/* Be careful, this file includes data *declarations*. */
34#include "opcode/hppa.h"
35
36/* A "convient" place to put object file dependencies which do
37 not need to be seen outside of tc-hppa.c. */
5cf4cd1b 38#ifdef OBJ_ELF
8f78d0e9
KR		 39/* Names of various debugging spaces/subspaces. */
40#define GDB_DEBUG_SPACE_NAME ".stab"
41#define GDB_STRINGS_SUBSPACE_NAME ".stabstr"
42#define GDB_SYMBOLS_SUBSPACE_NAME ".stab"
43#define UNWIND_SECTION_NAME ".hppa_unwind"
44/* Nonzero if CODE is a fixup code needing further processing. */
45
8f78d0e9
KR		 46/* Object file formats specify relocation types. */
47typedef elf32_hppa_reloc_type reloc_type;
48
49/* Object file formats specify BFD symbol types. */
50typedef elf_symbol_type obj_symbol_type;
51
aa8b30ed
JL		 52/* How to generate a relocation. */
53#define hppa_gen_reloc_type hppa_elf_gen_reloc_type
54
eb91665b
JL		 55/* ELF objects can have versions, but apparently do not have anywhere
56 to store a copyright string. */
8f78d0e9 57#define obj_version obj_elf_version
eb91665b 58#define obj_copyright obj_elf_version
8f78d0e9 59
3b9a72c5
JL		 60/* Use space aliases. */
61#define USE_ALIASES 1
62
8f78d0e9
KR		 63/* Some local functions only used by ELF. */
64static void pa_build_symextn_section PARAMS ((void));
65static void hppa_tc_make_symextn_section PARAMS ((void));
66#endif
67
68#ifdef OBJ_SOM
69/* Names of various debugging spaces/subspaces. */
70#define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
71#define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
72#define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
73#define UNWIND_SECTION_NAME "$UNWIND$"
74
75/* Object file formats specify relocation types. */
76typedef int reloc_type;
77
eb91665b 78/* SOM objects can have both a version string and a copyright string. */
8f78d0e9 79#define obj_version obj_som_version
eb91665b 80#define obj_copyright obj_som_copyright
8f78d0e9 81
3b9a72c5
JL		 82/* Do not use space aliases. */
83#define USE_ALIASES 0
84
aa8b30ed
JL		 85/* How to generate a relocation. */
86#define hppa_gen_reloc_type hppa_som_gen_reloc_type
8f78d0e9
KR		 87
88/* Object file formats specify BFD symbol types. */
89typedef som_symbol_type obj_symbol_type;
5cf4cd1b
KR		 90#endif
91
8f78d0e9
KR		 92/* Various structures and types used internally in tc-hppa.c. */
93
94/* Unwind table and descriptor. FIXME: Sync this with GDB version. */
025b0302
ME		 95
96struct unwind_desc
97 {
98 unsigned int cannot_unwind:1;
99 unsigned int millicode:1;
100 unsigned int millicode_save_rest:1;
101 unsigned int region_desc:2;
102 unsigned int save_sr:2;
8f78d0e9
KR		 103 unsigned int entry_fr:4;
104 unsigned int entry_gr:5;
025b0302
ME		 105 unsigned int args_stored:1;
106 unsigned int call_fr:5;
107 unsigned int call_gr:5;
108 unsigned int save_sp:1;
109 unsigned int save_rp:1;
110 unsigned int save_rp_in_frame:1;
111 unsigned int extn_ptr_defined:1;
112 unsigned int cleanup_defined:1;
113
114 unsigned int hpe_interrupt_marker:1;
115 unsigned int hpux_interrupt_marker:1;
116 unsigned int reserved:3;
117 unsigned int frame_size:27;
118 };
119
025b0302
ME		 120struct unwind_table
121 {
8f78d0e9
KR		 122 /* Starting and ending offsets of the region described by
123 descriptor. */
124 unsigned int start_offset;
125 unsigned int end_offset;
126 struct unwind_desc descriptor;
025b0302
ME		 127 };
128
8f78d0e9
KR		 129/* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
130 control the entry and exit code they generate. It is also used in
131 creation of the correct stack unwind descriptors.
025b0302 132
8f78d0e9
KR		 133 NOTE: GAS does not support .enter and .leave for the generation of
134 prologues and epilogues. FIXME.
135
136 The fields in structure roughly correspond to the arguments available on the
137 .callinfo pseudo-op. */
025b0302
ME		 138
139struct call_info
140 {
8f78d0e9
KR		 141 /* The unwind descriptor being built. */
142 struct unwind_table ci_unwind;
143
144 /* Name of this function. */
145 symbolS *start_symbol;
146
147 /* (temporary) symbol used to mark the end of this function. */
148 symbolS *end_symbol;
149
8f78d0e9
KR		 150 /* Next entry in the chain. */
151 struct call_info *ci_next;
152 };
153
154/* Operand formats for FP instructions. Note not all FP instructions
155 allow all four formats to be used (for example fmpysub only allows
156 SGL and DBL). */
157typedef enum
158 {
159 SGL, DBL, ILLEGAL_FMT, QUAD
160 }
161fp_operand_format;
162
e75acd68
JL		 163/* This fully describes the symbol types which may be attached to
164 an EXPORT or IMPORT directive. Only SOM uses this formation
165 (ELF has no need for it). */
166typedef enum
c5e9ccd0
JL		 167 {
168 SYMBOL_TYPE_UNKNOWN,
169 SYMBOL_TYPE_ABSOLUTE,
170 SYMBOL_TYPE_CODE,
171 SYMBOL_TYPE_DATA,
172 SYMBOL_TYPE_ENTRY,
173 SYMBOL_TYPE_MILLICODE,
174 SYMBOL_TYPE_PLABEL,
175 SYMBOL_TYPE_PRI_PROG,
176 SYMBOL_TYPE_SEC_PROG,
177 }
178pa_symbol_type;
e75acd68 179
8f78d0e9
KR		 180/* This structure contains information needed to assemble
181 individual instructions. */
025b0302
ME		 182struct pa_it
183 {
8f78d0e9 184 /* Holds the opcode after parsing by pa_ip. */
025b0302 185 unsigned long opcode;
8f78d0e9
KR		 186
187 /* Holds an expression associated with the current instruction. */
025b0302 188 expressionS exp;
8f78d0e9
KR		 189
190 /* Does this instruction use PC-relative addressing. */
025b0302 191 int pcrel;
8f78d0e9
KR		 192
193 /* Floating point formats for operand1 and operand2. */
194 fp_operand_format fpof1;
195 fp_operand_format fpof2;
196
197 /* Holds the field selector for this instruction
198 (for example L%, LR%, etc). */
025b0302 199 long field_selector;
8f78d0e9
KR		 200
201 /* Holds any argument relocation bits associated with this
202 instruction. (instruction should be some sort of call). */
025b0302 203 long arg_reloc;
8f78d0e9
KR		 204
205 /* The format specification for this instruction. */
025b0302 206 int format;
8f78d0e9
KR		 207
208 /* The relocation (if any) associated with this instruction. */
209 reloc_type reloc;
025b0302
ME		 210 };
211
8f78d0e9 212/* PA-89 floating point registers are arranged like this:
025b0302 213
025b0302 214
8f78d0e9
KR		 215 +--------------+--------------+
216 | 0 or 16L | 16 or 16R |
217 +--------------+--------------+
218 | 1 or 17L | 17 or 17R |
219 +--------------+--------------+
220 | | |
221
222 . . .
223 . . .
224 . . .
225
226 | | |
227 +--------------+--------------+
228 | 14 or 30L | 30 or 30R |
229 +--------------+--------------+
230 | 15 or 31L | 31 or 31R |
231 +--------------+--------------+
232
233
234 The following is a version of pa_parse_number that
235 handles the L/R notation and returns the correct
236 value to put into the instruction register field.
237 The correct value to put into the instruction is
238 encoded in the structure 'pa_89_fp_reg_struct'. */
239
240struct pa_89_fp_reg_struct
241 {
242 /* The register number. */
243 char number_part;
244
245 /* L/R selector. */
246 char l_r_select;
247 };
248
249/* Additional information needed to build argument relocation stubs. */
250struct call_desc
251 {
252 /* The argument relocation specification. */
253 unsigned int arg_reloc;
254
255 /* Number of arguments. */
256 unsigned int arg_count;
257 };
258
259/* This structure defines an entry in the subspace dictionary
260 chain. */
261
262struct subspace_dictionary_chain
263 {
47f45d66
JL		 264 /* Nonzero if this space has been defined by the user code. */
265 unsigned int ssd_defined;
266
8f78d0e9
KR		 267 /* Name of this subspace. */
268 char *ssd_name;
269
270 /* GAS segment and subsegment associated with this subspace. */
271 asection *ssd_seg;
272 int ssd_subseg;
273
8f78d0e9
KR		 274 /* Next space in the subspace dictionary chain. */
275 struct subspace_dictionary_chain *ssd_next;
276 };
277
278typedef struct subspace_dictionary_chain ssd_chain_struct;
279
280/* This structure defines an entry in the subspace dictionary
281 chain. */
282
283struct space_dictionary_chain
284 {
8f78d0e9
KR		 285 /* Nonzero if this space has been defined by the user code or
286 as a default space. */
287 unsigned int sd_defined;
288
289 /* Nonzero if this spaces has been defined by the user code. */
290 unsigned int sd_user_defined;
291
8f78d0e9
KR		 292 /* The space number (or index). */
293 unsigned int sd_spnum;
294
8f78d0e9
KR		 295 /* The name of this subspace. */
296 char *sd_name;
297
298 /* GAS segment to which this subspace corresponds. */
299 asection *sd_seg;
300
301 /* Current subsegment number being used. */
302 int sd_last_subseg;
303
304 /* The chain of subspaces contained within this space. */
305 ssd_chain_struct *sd_subspaces;
306
307 /* The next entry in the space dictionary chain. */
308 struct space_dictionary_chain *sd_next;
309 };
310
311typedef struct space_dictionary_chain sd_chain_struct;
312
313/* Structure for previous label tracking. Needed so that alignments,
314 callinfo declarations, etc can be easily attached to a particular
315 label. */
316typedef struct label_symbol_struct
317 {
318 struct symbol *lss_label;
319 sd_chain_struct *lss_space;
320 struct label_symbol_struct *lss_next;
321 }
322label_symbol_struct;
323
324/* This structure defines attributes of the default subspace
325 dictionary entries. */
326
327struct default_subspace_dict
328 {
c5e9ccd0 329 /* Name of the subspace. */
8f78d0e9
KR		 330 char *name;
331
332 /* FIXME. Is this still needed? */
333 char defined;
334
335 /* Nonzero if this subspace is loadable. */
336 char loadable;
337
338 /* Nonzero if this subspace contains only code. */
339 char code_only;
340
341 /* Nonzero if this is a common subspace. */
342 char common;
343
344 /* Nonzero if this is a common subspace which allows symbols
345 to be multiply defined. */
346 char dup_common;
347
348 /* Nonzero if this subspace should be zero filled. */
349 char zero;
350
351 /* Sort key for this subspace. */
352 unsigned char sort;
353
354 /* Access control bits for this subspace. Can represent RWX access
355 as well as privilege level changes for gateways. */
356 int access;
357
358 /* Index of containing space. */
359 int space_index;
360
361 /* Alignment (in bytes) of this subspace. */
362 int alignment;
363
364 /* Quadrant within space where this subspace should be loaded. */
365 int quadrant;
366
367 /* An index into the default spaces array. */
368 int def_space_index;
369
370 /* An alias for this section (or NULL if no alias exists). */
371 char *alias;
372
373 /* Subsegment associated with this subspace. */
374 subsegT subsegment;
375 };
376
377/* This structure defines attributes of the default space
378 dictionary entries. */
379
380struct default_space_dict
381 {
382 /* Name of the space. */
383 char *name;
384
385 /* Space number. It is possible to identify spaces within
386 assembly code numerically! */
387 int spnum;
388
389 /* Nonzero if this space is loadable. */
390 char loadable;
391
392 /* Nonzero if this space is "defined". FIXME is still needed */
393 char defined;
394
395 /* Nonzero if this space can not be shared. */
396 char private;
397
398 /* Sort key for this space. */
399 unsigned char sort;
400
401 /* Segment associated with this space. */
402 asection *segment;
403
404 /* An alias for this section (or NULL if no alias exists). */
405 char *alias;
406 };
407
408/* Extra information needed to perform fixups (relocations) on the PA. */
409struct hppa_fix_struct
c5e9ccd0 410 {
8f78d0e9 411 /* The field selector. */
f2eed884 412 enum hppa_reloc_field_selector_type fx_r_field;
8f78d0e9
KR		 413
414 /* Type of fixup. */
415 int fx_r_type;
416
417 /* Format of fixup. */
418 int fx_r_format;
419
420 /* Argument relocation bits. */
421 long fx_arg_reloc;
422
423 /* The unwind descriptor associated with this fixup. */
424 char fx_unwind[8];
fca59f9d
JL		 425
426 /* The segment this fixup appears in. */
427 segT segment;
c5e9ccd0 428 };
8f78d0e9
KR		 429
430/* Structure to hold information about predefined registers. */
431
432struct pd_reg
c5e9ccd0
JL		 433 {
434 char *name;
435 int value;
436 };
8f78d0e9
KR		 437
438/* This structure defines the mapping from a FP condition string
439 to a condition number which can be recorded in an instruction. */
440struct fp_cond_map
c5e9ccd0
JL		 441 {
442 char *string;
443 int cond;
444 };
8f78d0e9
KR		 445
446/* This structure defines a mapping from a field selector
447 string to a field selector type. */
448struct selector_entry
c5e9ccd0
JL		 449 {
450 char *prefix;
451 int field_selector;
452 };
025b0302 453
8f78d0e9
KR		 454/* Prototypes for functions local to tc-hppa.c. */
455
456static fp_operand_format pa_parse_fp_format PARAMS ((char **s));
8f78d0e9
KR		 457static void pa_cons PARAMS ((int));
458static void pa_data PARAMS ((int));
8f78d0e9
KR		 459static void pa_float_cons PARAMS ((int));
460static void pa_fill PARAMS ((int));
461static void pa_lcomm PARAMS ((int));
462static void pa_lsym PARAMS ((int));
463static void pa_stringer PARAMS ((int));
464static void pa_text PARAMS ((int));
465static void pa_version PARAMS ((int));
466static int pa_parse_fp_cmp_cond PARAMS ((char **));
467static int get_expression PARAMS ((char *));
48153d49
JL		 468static int pa_get_absolute_expression PARAMS ((struct pa_it *, char **));
469static int evaluate_absolute PARAMS ((struct pa_it *));
8f78d0e9
KR		 470static unsigned int pa_build_arg_reloc PARAMS ((char *));
471static unsigned int pa_align_arg_reloc PARAMS ((unsigned int, unsigned int));
472static int pa_parse_nullif PARAMS ((char **));
473static int pa_parse_nonneg_cmpsub_cmpltr PARAMS ((char **, int));
474static int pa_parse_neg_cmpsub_cmpltr PARAMS ((char **, int));
475static int pa_parse_neg_add_cmpltr PARAMS ((char **, int));
476static int pa_parse_nonneg_add_cmpltr PARAMS ((char **, int));
477static void pa_block PARAMS ((int));
478static void pa_call PARAMS ((int));
479static void pa_call_args PARAMS ((struct call_desc *));
480static void pa_callinfo PARAMS ((int));
481static void pa_code PARAMS ((int));
482static void pa_comm PARAMS ((int));
483static void pa_copyright PARAMS ((int));
484static void pa_end PARAMS ((int));
485static void pa_enter PARAMS ((int));
486static void pa_entry PARAMS ((int));
487static void pa_equ PARAMS ((int));
488static void pa_exit PARAMS ((int));
489static void pa_export PARAMS ((int));
48153d49 490static void pa_type_args PARAMS ((symbolS *, int));
8f78d0e9
KR		 491static void pa_import PARAMS ((int));
492static void pa_label PARAMS ((int));
493static void pa_leave PARAMS ((int));
494static void pa_origin PARAMS ((int));
495static void pa_proc PARAMS ((int));
496static void pa_procend PARAMS ((int));
497static void pa_space PARAMS ((int));
498static void pa_spnum PARAMS ((int));
499static void pa_subspace PARAMS ((int));
500static void pa_param PARAMS ((int));
501static void pa_undefine_label PARAMS ((void));
c5e9ccd0 502static int need_89_opcode PARAMS ((struct pa_it *,
8f78d0e9
KR		 503 struct pa_89_fp_reg_struct *));
504static int pa_parse_number PARAMS ((char **, struct pa_89_fp_reg_struct *));
505static label_symbol_struct *pa_get_label PARAMS ((void));
506static sd_chain_struct *create_new_space PARAMS ((char *, int, char,
507 char, char, char,
508 asection *, int));
c5e9ccd0
JL		 509static ssd_chain_struct *create_new_subspace PARAMS ((sd_chain_struct *,
510 char *, char, char,
511 char, char, char,
512 char, int, int, int,
513 int, asection *));
3b9a72c5
JL		 514static ssd_chain_struct *update_subspace PARAMS ((sd_chain_struct *,
515 char *, char, char, char,
8f78d0e9 516 char, char, char, int,
18c4f112
JL		 517 int, int, int,
518 asection *));
8f78d0e9 519static sd_chain_struct *is_defined_space PARAMS ((char *));
47f45d66 520static ssd_chain_struct *is_defined_subspace PARAMS ((char *));
8f78d0e9 521static sd_chain_struct *pa_segment_to_space PARAMS ((asection *));
c5e9ccd0
JL		 522static ssd_chain_struct *pa_subsegment_to_subspace PARAMS ((asection *,
523 subsegT));
8f78d0e9
KR		 524static sd_chain_struct *pa_find_space_by_number PARAMS ((int));
525static unsigned int pa_subspace_start PARAMS ((sd_chain_struct *, int));
8f78d0e9
KR		 526static void pa_ip PARAMS ((char *));
527static void fix_new_hppa PARAMS ((fragS *, int, short int, symbolS *,
528 long, expressionS *, int,
f2eed884
JL		 529 bfd_reloc_code_real_type,
530 enum hppa_reloc_field_selector_type,
8f78d0e9 531 int, long, char *));
8f78d0e9
KR		 532static int is_end_of_statement PARAMS ((void));
533static int reg_name_search PARAMS ((char *));
534static int pa_chk_field_selector PARAMS ((char **));
535static int is_same_frag PARAMS ((fragS *, fragS *));
536static void pa_build_unwind_subspace PARAMS ((struct call_info *));
537static void process_exit PARAMS ((void));
538static sd_chain_struct *pa_parse_space_stmt PARAMS ((char *, int));
aa8b30ed 539static int log2 PARAMS ((int));
8f78d0e9
KR		 540static int pa_next_subseg PARAMS ((sd_chain_struct *));
541static unsigned int pa_stringer_aux PARAMS ((char *));
542static void pa_spaces_begin PARAMS ((void));
44c0de53 543static void hppa_elf_mark_end_of_function PARAMS ((void));
8f78d0e9
KR		 544
545/* File and gloally scoped variable declarations. */
546
547/* Root and final entry in the space chain. */
548static sd_chain_struct *space_dict_root;
549static sd_chain_struct *space_dict_last;
550
551/* The current space and subspace. */
552static sd_chain_struct *current_space;
553static ssd_chain_struct *current_subspace;
554
555/* Root of the call_info chain. */
556static struct call_info *call_info_root;
557
558/* The last call_info (for functions) structure
559 seen so it can be associated with fixups and
560 function labels. */
561static struct call_info *last_call_info;
562
c5e9ccd0 563/* The last call description (for actual calls). */
8f78d0e9
KR		 564static struct call_desc last_call_desc;
565
566/* Relaxation isn't supported for the PA yet. */
c5e9ccd0
JL		 567const relax_typeS md_relax_table[] =
568{0};
025b0302 569
c5e9ccd0 570/* Jumps are always the same size -- one instruction. */
025b0302
ME		 571int md_short_jump_size = 4;
572int md_long_jump_size = 4;
573
8f78d0e9
KR		 574/* handle of the OPCODE hash table */
575static struct hash_control *op_hash = NULL;
025b0302 576
8f78d0e9
KR		 577/* This array holds the chars that always start a comment. If the
578 pre-processor is disabled, these aren't very useful. */
579const char comment_chars[] = ";";
580
581/* Table of pseudo ops for the PA. FIXME -- how many of these
582 are now redundant with the overall GAS and the object file
583 dependent tables? */
584const pseudo_typeS md_pseudo_table[] =
585{
586 /* align pseudo-ops on the PA specify the actual alignment requested,
587 not the log2 of the requested alignment. */
d33ace2e
JL		 588 {"align", s_align_bytes, 8},
589 {"ALIGN", s_align_bytes, 8},
025b0302
ME		 590 {"block", pa_block, 1},
591 {"BLOCK", pa_block, 1},
592 {"blockz", pa_block, 0},
593 {"BLOCKZ", pa_block, 0},
594 {"byte", pa_cons, 1},
595 {"BYTE", pa_cons, 1},
596 {"call", pa_call, 0},
597 {"CALL", pa_call, 0},
598 {"callinfo", pa_callinfo, 0},
599 {"CALLINFO", pa_callinfo, 0},
600 {"code", pa_code, 0},
601 {"CODE", pa_code, 0},
602 {"comm", pa_comm, 0},
603 {"COMM", pa_comm, 0},
604 {"copyright", pa_copyright, 0},
605 {"COPYRIGHT", pa_copyright, 0},
606 {"data", pa_data, 0},
607 {"DATA", pa_data, 0},
025b0302
ME		 608 {"double", pa_float_cons, 'd'},
609 {"DOUBLE", pa_float_cons, 'd'},
610 {"end", pa_end, 0},
611 {"END", pa_end, 0},
612 {"enter", pa_enter, 0},
613 {"ENTER", pa_enter, 0},
614 {"entry", pa_entry, 0},
615 {"ENTRY", pa_entry, 0},
616 {"equ", pa_equ, 0},
617 {"EQU", pa_equ, 0},
618 {"exit", pa_exit, 0},
619 {"EXIT", pa_exit, 0},
620 {"export", pa_export, 0},
621 {"EXPORT", pa_export, 0},
622 {"fill", pa_fill, 0},
623 {"FILL", pa_fill, 0},
624 {"float", pa_float_cons, 'f'},
625 {"FLOAT", pa_float_cons, 'f'},
626 {"half", pa_cons, 2},
627 {"HALF", pa_cons, 2},
628 {"import", pa_import, 0},
629 {"IMPORT", pa_import, 0},
630 {"int", pa_cons, 4},
631 {"INT", pa_cons, 4},
632 {"label", pa_label, 0},
633 {"LABEL", pa_label, 0},
634 {"lcomm", pa_lcomm, 0},
635 {"LCOMM", pa_lcomm, 0},
636 {"leave", pa_leave, 0},
637 {"LEAVE", pa_leave, 0},
638 {"long", pa_cons, 4},
639 {"LONG", pa_cons, 4},
640 {"lsym", pa_lsym, 0},
641 {"LSYM", pa_lsym, 0},
aa8b30ed
JL		 642 {"octa", pa_cons, 16},
643 {"OCTA", pa_cons, 16},
025b0302
ME		 644 {"org", pa_origin, 0},
645 {"ORG", pa_origin, 0},
646 {"origin", pa_origin, 0},
647 {"ORIGIN", pa_origin, 0},
5cf4cd1b
KR		 648 {"param", pa_param, 0},
649 {"PARAM", pa_param, 0},
025b0302
ME		 650 {"proc", pa_proc, 0},
651 {"PROC", pa_proc, 0},
652 {"procend", pa_procend, 0},
653 {"PROCEND", pa_procend, 0},
aa8b30ed
JL		 654 {"quad", pa_cons, 8},
655 {"QUAD", pa_cons, 8},
8f78d0e9
KR		 656 {"reg", pa_equ, 1},
657 {"REG", pa_equ, 1},
025b0302
ME		 658 {"short", pa_cons, 2},
659 {"SHORT", pa_cons, 2},
660 {"single", pa_float_cons, 'f'},
661 {"SINGLE", pa_float_cons, 'f'},
662 {"space", pa_space, 0},
663 {"SPACE", pa_space, 0},
664 {"spnum", pa_spnum, 0},
665 {"SPNUM", pa_spnum, 0},
666 {"string", pa_stringer, 0},
667 {"STRING", pa_stringer, 0},
668 {"stringz", pa_stringer, 1},
669 {"STRINGZ", pa_stringer, 1},
670 {"subspa", pa_subspace, 0},
671 {"SUBSPA", pa_subspace, 0},
672 {"text", pa_text, 0},
673 {"TEXT", pa_text, 0},
674 {"version", pa_version, 0},
675 {"VERSION", pa_version, 0},
676 {"word", pa_cons, 4},
677 {"WORD", pa_cons, 4},
678 {NULL, 0, 0}
679};
680
681/* This array holds the chars that only start a comment at the beginning of
682 a line. If the line seems to have the form '# 123 filename'
8f78d0e9
KR		 683 .line and .file directives will appear in the pre-processed output.
684
685 Note that input_file.c hand checks for '#' at the beginning of the
025b0302 686 first line of the input file. This is because the compiler outputs
8f78d0e9
KR		 687 #NO_APP at the beginning of its output.
688
689 Also note that '/*' will always start a comment. */
025b0302
ME		 690const char line_comment_chars[] = "#";
691
8f78d0e9 692/* This array holds the characters which act as line separators. */
025b0302
ME		 693const char line_separator_chars[] = "!";
694
8f78d0e9 695/* Chars that can be used to separate mant from exp in floating point nums. */
025b0302
ME		 696const char EXP_CHARS[] = "eE";
697
8f78d0e9
KR		 698/* Chars that mean this number is a floating point constant.
699 As in 0f12.456 or 0d1.2345e12.
025b0302 700
8f78d0e9
KR		 701 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
702 changed in read.c. Ideally it shouldn't hae to know abou it at
703 all, but nothing is ideal around here. */
704const char FLT_CHARS[] = "rRsSfFdDxXpP";
025b0302 705
8f78d0e9 706static struct pa_it the_insn;
025b0302 707
8f78d0e9
KR		 708/* Points to the end of an expression just parsed by get_expressoin
709 and friends. FIXME. This shouldn't be handled with a file-global
710 variable. */
711static char *expr_end;
025b0302 712
8f78d0e9 713/* Nonzero if a .callinfo appeared within the current procedure. */
5cf4cd1b 714static int callinfo_found;
025b0302 715
8f78d0e9 716/* Nonzero if the assembler is currently within a .entry/.exit pair. */
5cf4cd1b 717static int within_entry_exit;
025b0302 718
8f78d0e9 719/* Nonzero if the assembler is currently within a procedure definition. */
5cf4cd1b 720static int within_procedure;
025b0302 721
8f78d0e9
KR		 722/* Handle on strucutre which keep track of the last symbol
723 seen in each subspace. */
724static label_symbol_struct *label_symbols_rootp = NULL;
025b0302 725
8f78d0e9
KR		 726/* Holds the last field selector. */
727static int hppa_field_selector;
025b0302 728
6868afe6 729/* A dummy bfd symbol so that all relocations have symbols of some kind. */
fca59f9d 730static symbolS *dummy_symbol;
6868afe6 731
8f78d0e9
KR		 732/* Nonzero if errors are to be printed. */
733static int print_errors = 1;
025b0302 734
8f78d0e9 735/* List of registers that are pre-defined:
025b0302 736
8f78d0e9
KR		 737 Each general register has one predefined name of the form
738 %r<REGNUM> which has the value <REGNUM>.
025b0302 739
8f78d0e9
KR		 740 Space and control registers are handled in a similar manner,
741 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
025b0302 742
8f78d0e9
KR		 743 Likewise for the floating point registers, but of the form
744 %fr<REGNUM>. Floating point registers have additional predefined
745 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
746 again have the value <REGNUM>.
025b0302 747
8f78d0e9 748 Many registers also have synonyms:
025b0302 749
8f78d0e9
KR		 750 %r26 - %r23 have %arg0 - %arg3 as synonyms
751 %r28 - %r29 have %ret0 - %ret1 as synonyms
752 %r30 has %sp as a synonym
d6e524f3
JL		 753 %r27 has %dp as a synonym
754 %r2 has %rp as a synonym
025b0302 755
8f78d0e9
KR		 756 Almost every control register has a synonym; they are not listed
757 here for brevity.
025b0302 758
8f78d0e9 759 The table is sorted. Suitable for searching by a binary search. */
025b0302 760
8f78d0e9 761static const struct pd_reg pre_defined_registers[] =
025b0302 762{
8f78d0e9
KR		 763 {"%arg0", 26},
764 {"%arg1", 25},
765 {"%arg2", 24},
766 {"%arg3", 23},
767 {"%cr0", 0},
768 {"%cr10", 10},
769 {"%cr11", 11},
770 {"%cr12", 12},
771 {"%cr13", 13},
772 {"%cr14", 14},
773 {"%cr15", 15},
774 {"%cr16", 16},
775 {"%cr17", 17},
776 {"%cr18", 18},
777 {"%cr19", 19},
778 {"%cr20", 20},
779 {"%cr21", 21},
780 {"%cr22", 22},
781 {"%cr23", 23},
782 {"%cr24", 24},
783 {"%cr25", 25},
784 {"%cr26", 26},
785 {"%cr27", 27},
786 {"%cr28", 28},
787 {"%cr29", 29},
788 {"%cr30", 30},
789 {"%cr31", 31},
790 {"%cr8", 8},
791 {"%cr9", 9},
d6e524f3 792 {"%dp", 27},
8f78d0e9
KR		 793 {"%eiem", 15},
794 {"%eirr", 23},
795 {"%fr0", 0},
4047ff1d
JL		 796 {"%fr0l", 0},
797 {"%fr0r", 0},
8f78d0e9
KR		 798 {"%fr1", 1},
799 {"%fr10", 10},
4047ff1d
JL		 800 {"%fr10l", 10},
801 {"%fr10r", 10},
8f78d0e9 802 {"%fr11", 11},
4047ff1d
JL		 803 {"%fr11l", 11},
804 {"%fr11r", 11},
8f78d0e9 805 {"%fr12", 12},
4047ff1d
JL		 806 {"%fr12l", 12},
807 {"%fr12r", 12},
8f78d0e9 808 {"%fr13", 13},
4047ff1d
JL		 809 {"%fr13l", 13},
810 {"%fr13r", 13},
8f78d0e9 811 {"%fr14", 14},
4047ff1d
JL		 812 {"%fr14l", 14},
813 {"%fr14r", 14},
8f78d0e9 814 {"%fr15", 15},
4047ff1d
JL		 815 {"%fr15l", 15},
816 {"%fr15r", 15},
8f78d0e9 817 {"%fr16", 16},
4047ff1d
JL		 818 {"%fr16l", 16},
819 {"%fr16r", 16},
8f78d0e9 820 {"%fr17", 17},
4047ff1d
JL		 821 {"%fr17l", 17},
822 {"%fr17r", 17},
8f78d0e9 823 {"%fr18", 18},
4047ff1d
JL		 824 {"%fr18l", 18},
825 {"%fr18r", 18},
8f78d0e9 826 {"%fr19", 19},
4047ff1d
JL		 827 {"%fr19l", 19},
828 {"%fr19r", 19},
829 {"%fr1l", 1},
830 {"%fr1r", 1},
8f78d0e9
KR		 831 {"%fr2", 2},
832 {"%fr20", 20},
4047ff1d
JL		 833 {"%fr20l", 20},
834 {"%fr20r", 20},
8f78d0e9 835 {"%fr21", 21},
4047ff1d
JL		 836 {"%fr21l", 21},
837 {"%fr21r", 21},
8f78d0e9 838 {"%fr22", 22},
4047ff1d
JL		 839 {"%fr22l", 22},
840 {"%fr22r", 22},
8f78d0e9 841 {"%fr23", 23},
4047ff1d
JL		 842 {"%fr23l", 23},
843 {"%fr23r", 23},
8f78d0e9 844 {"%fr24", 24},
4047ff1d
JL		 845 {"%fr24l", 24},
846 {"%fr24r", 24},
8f78d0e9 847 {"%fr25", 25},
4047ff1d
JL		 848 {"%fr25l", 25},
849 {"%fr25r", 25},
8f78d0e9 850 {"%fr26", 26},
4047ff1d
JL		 851 {"%fr26l", 26},
852 {"%fr26r", 26},
8f78d0e9 853 {"%fr27", 27},
4047ff1d
JL		 854 {"%fr27l", 27},
855 {"%fr27r", 27},
8f78d0e9 856 {"%fr28", 28},
4047ff1d
JL		 857 {"%fr28l", 28},
858 {"%fr28r", 28},
8f78d0e9 859 {"%fr29", 29},
4047ff1d
JL		 860 {"%fr29l", 29},
861 {"%fr29r", 29},
862 {"%fr2l", 2},
863 {"%fr2r", 2},
8f78d0e9
KR		 864 {"%fr3", 3},
865 {"%fr30", 30},
4047ff1d
JL		 866 {"%fr30l", 30},
867 {"%fr30r", 30},
8f78d0e9 868 {"%fr31", 31},
4047ff1d
JL		 869 {"%fr31l", 31},
870 {"%fr31r", 31},
871 {"%fr3l", 3},
872 {"%fr3r", 3},
8f78d0e9 873 {"%fr4", 4},
4047ff1d
JL		 874 {"%fr4l", 4},
875 {"%fr4r", 4},
8f78d0e9 876 {"%fr5", 5},
4047ff1d
JL		 877 {"%fr5l", 5},
878 {"%fr5r", 5},
8f78d0e9 879 {"%fr6", 6},
4047ff1d
JL		 880 {"%fr6l", 6},
881 {"%fr6r", 6},
8f78d0e9 882 {"%fr7", 7},
4047ff1d
JL		 883 {"%fr7l", 7},
884 {"%fr7r", 7},
8f78d0e9 885 {"%fr8", 8},
4047ff1d
JL		 886 {"%fr8l", 8},
887 {"%fr8r", 8},
8f78d0e9 888 {"%fr9", 9},
4047ff1d
JL		 889 {"%fr9l", 9},
890 {"%fr9r", 9},
8f78d0e9
KR		 891 {"%hta", 25},
892 {"%iir", 19},
893 {"%ior", 21},
894 {"%ipsw", 22},
895 {"%isr", 20},
896 {"%itmr", 16},
897 {"%iva", 14},
898 {"%pcoq", 18},
899 {"%pcsq", 17},
900 {"%pidr1", 8},
901 {"%pidr2", 9},
902 {"%pidr3", 12},
903 {"%pidr4", 13},
904 {"%ppda", 24},
905 {"%r0", 0},
906 {"%r1", 1},
907 {"%r10", 10},
908 {"%r11", 11},
909 {"%r12", 12},
910 {"%r13", 13},
911 {"%r14", 14},
912 {"%r15", 15},
913 {"%r16", 16},
914 {"%r17", 17},
915 {"%r18", 18},
916 {"%r19", 19},
917 {"%r2", 2},
918 {"%r20", 20},
919 {"%r21", 21},
920 {"%r22", 22},
921 {"%r23", 23},
922 {"%r24", 24},
923 {"%r25", 25},
924 {"%r26", 26},
925 {"%r27", 27},
926 {"%r28", 28},
927 {"%r29", 29},
928 {"%r3", 3},
929 {"%r30", 30},
930 {"%r31", 31},
931 {"%r4", 4},
8f78d0e9 932 {"%r5", 5},
8f78d0e9 933 {"%r6", 6},
8f78d0e9 934 {"%r7", 7},
8f78d0e9 935 {"%r8", 8},
8f78d0e9 936 {"%r9", 9},
8f78d0e9
KR		 937 {"%rctr", 0},
938 {"%ret0", 28},
939 {"%ret1", 29},
d6e524f3 940 {"%rp", 2},
8f78d0e9
KR		 941 {"%sar", 11},
942 {"%sp", 30},
943 {"%sr0", 0},
944 {"%sr1", 1},
945 {"%sr2", 2},
946 {"%sr3", 3},
947 {"%sr4", 4},
948 {"%sr5", 5},
949 {"%sr6", 6},
950 {"%sr7", 7},
951 {"%tr0", 24},
952 {"%tr1", 25},
953 {"%tr2", 26},
954 {"%tr3", 27},
955 {"%tr4", 28},
956 {"%tr5", 29},
957 {"%tr6", 30},
958 {"%tr7", 31}
959};
025b0302 960
8f78d0e9
KR		 961/* This table is sorted by order of the length of the string. This is
962 so we check for <> before we check for <. If we had a <> and checked
963 for < first, we would get a false match. */
c5e9ccd0 964static const struct fp_cond_map fp_cond_map[] =
8f78d0e9
KR		 965{
966 {"false?", 0},
967 {"false", 1},
968 {"true?", 30},
969 {"true", 31},
970 {"!<=>", 3},
971 {"!?>=", 8},
972 {"!?<=", 16},
973 {"!<>", 7},
974 {"!>=", 11},
975 {"!?>", 12},
976 {"?<=", 14},
977 {"!<=", 19},
978 {"!?<", 20},
979 {"?>=", 22},
980 {"!?=", 24},
981 {"!=t", 27},
982 {"<=>", 29},
983 {"=t", 5},
984 {"?=", 6},
985 {"?<", 10},
986 {"<=", 13},
987 {"!>", 15},
988 {"?>", 18},
989 {">=", 21},
990 {"!<", 23},
991 {"<>", 25},
992 {"!=", 26},
993 {"!?", 28},
994 {"?", 2},
995 {"=", 4},
996 {"<", 9},
997 {">", 17}
998};
025b0302 999
8f78d0e9
KR		 1000static const struct selector_entry selector_table[] =
1001{
4047ff1d
JL		 1002 {"f", e_fsel},
1003 {"l", e_lsel},
1004 {"ld", e_ldsel},
1005 {"lp", e_lpsel},
1006 {"lr", e_lrsel},
1007 {"ls", e_lssel},
1008 {"lt", e_ltsel},
1009 {"p", e_psel},
1010 {"r", e_rsel},
1011 {"rd", e_rdsel},
1012 {"rp", e_rpsel},
1013 {"rr", e_rrsel},
1014 {"rs", e_rssel},
1015 {"rt", e_rtsel},
1016 {"t", e_tsel},
8f78d0e9 1017};
025b0302 1018
8f78d0e9 1019/* default space and subspace dictionaries */
025b0302 1020
8f78d0e9
KR		 1021#define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1022#define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
025b0302 1023
8f78d0e9
KR		 1024/* pre-defined subsegments (subspaces) for the HPPA. */
1025#define SUBSEG_CODE 0
1026#define SUBSEG_DATA 0
1027#define SUBSEG_LIT 1
1028#define SUBSEG_BSS 2
1029#define SUBSEG_UNWIND 3
1030#define SUBSEG_GDB_STRINGS 0
1031#define SUBSEG_GDB_SYMBOLS 1
025b0302 1032
8f78d0e9 1033static struct default_subspace_dict pa_def_subspaces[] =
025b0302 1034{
aa8b30ed
JL		 1035 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_CODE},
1036 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, ".data", SUBSEG_DATA},
1037 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_LIT},
1038 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, ".bss", SUBSEG_BSS},
31a385d1 1039#ifdef OBJ_ELF
aa8b30ed 1040 {"$UNWIND$", 1, 1, 0, 0, 0, 0, 64, 0x2c, 0, 4, 0, 0, ".hppa_unwind", SUBSEG_UNWIND},
31a385d1 1041#endif
8f78d0e9
KR		 1042 {NULL, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1043};
025b0302 1044
8f78d0e9
KR		 1045static struct default_space_dict pa_def_spaces[] =
1046{
aa8b30ed
JL		 1047 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL, ".text"},
1048 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL, ".data"},
8f78d0e9
KR		 1049 {NULL, 0, 0, 0, 0, 0, ASEC_NULL, NULL}
1050};
025b0302 1051
8f78d0e9
KR		 1052/* Misc local definitions used by the assembler. */
1053
1054/* Return nonzero if the string pointed to by S potentially represents
1055 a right or left half of a FP register */
1056#define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1057#define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1058
1059/* These macros are used to maintain spaces/subspaces. */
1060#define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1061#define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
8f78d0e9 1062#define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
8f78d0e9 1063#define SPACE_NAME(space_chain) (space_chain)->sd_name
8f78d0e9 1064
47f45d66 1065#define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
8f78d0e9
KR		 1066#define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1067
48153d49
JL		 1068/* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1069 main loop after insertion. */
1070
1071#define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1072 { \
1073 ((OPCODE) |= (FIELD) << (START)); \
1074 continue; \
1075 }
1076
1077/* Simple range checking for FIELD againt HIGH and LOW bounds.
1078 IGNORE is used to suppress the error message. */
1079
1080#define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1081 { \
1082 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1083 { \
1084 if (! IGNORE) \
1085 as_bad ("Field out of range [%d..%d] (%d).", (LOW), (HIGH), \
1086 (int) (FIELD));\
1087 break; \
1088 } \
1089 }
c5e9ccd0 1090
8f78d0e9
KR		 1091#define is_DP_relative(exp) \
1092 ((exp).X_op == O_subtract \
1093 && strcmp((exp).X_op_symbol->bsym->name, "$global$") == 0)
1094
1095#define is_PC_relative(exp) \
1096 ((exp).X_op == O_subtract \
1097 && strcmp((exp).X_op_symbol->bsym->name, "$PIC_pcrel$0") == 0)
1098
1099#define is_complex(exp) \
1100 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1101
1102/* Actual functions to implement the PA specific code for the assembler. */
1103
1104/* Returns a pointer to the label_symbol_struct for the current space.
1105 or NULL if no label_symbol_struct exists for the current space. */
1106
1107static label_symbol_struct *
1108pa_get_label ()
1109{
1110 label_symbol_struct *label_chain;
3b9a72c5 1111 sd_chain_struct *space_chain = current_space;
025b0302 1112
8f78d0e9
KR		 1113 for (label_chain = label_symbols_rootp;
1114 label_chain;
1115 label_chain = label_chain->lss_next)
1116 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1117 return label_chain;
025b0302 1118
8f78d0e9
KR		 1119 return NULL;
1120}
025b0302 1121
8f78d0e9
KR		 1122/* Defines a label for the current space. If one is already defined,
1123 this function will replace it with the new label. */
025b0302 1124
8f78d0e9
KR		 1125void
1126pa_define_label (symbol)
1127 symbolS *symbol;
1128{
1129 label_symbol_struct *label_chain = pa_get_label ();
3b9a72c5 1130 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1131
1132 if (label_chain)
1133 label_chain->lss_label = symbol;
1134 else
1135 {
1136 /* Create a new label entry and add it to the head of the chain. */
1137 label_chain
1138 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1139 label_chain->lss_label = symbol;
1140 label_chain->lss_space = space_chain;
1141 label_chain->lss_next = NULL;
1142
1143 if (label_symbols_rootp)
1144 label_chain->lss_next = label_symbols_rootp;
1145
1146 label_symbols_rootp = label_chain;
1147 }
1148}
1149
1150/* Removes a label definition for the current space.
1151 If there is no label_symbol_struct entry, then no action is taken. */
1152
1153static void
1154pa_undefine_label ()
1155{
1156 label_symbol_struct *label_chain;
1157 label_symbol_struct *prev_label_chain = NULL;
3b9a72c5 1158 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1159
1160 for (label_chain = label_symbols_rootp;
1161 label_chain;
1162 label_chain = label_chain->lss_next)
1163 {
1164 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1165 {
1166 /* Remove the label from the chain and free its memory. */
1167 if (prev_label_chain)
1168 prev_label_chain->lss_next = label_chain->lss_next;
1169 else
1170 label_symbols_rootp = label_chain->lss_next;
1171
1172 free (label_chain);
1173 break;
1174 }
1175 prev_label_chain = label_chain;
1176 }
1177}
1178
1179
1180/* An HPPA-specific version of fix_new. This is required because the HPPA
1181 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1182 results in the creation of an instance of an hppa_fix_struct. An
1183 hppa_fix_struct stores the extra information along with a pointer to the
aa8b30ed
JL		 1184 original fixS. This is attached to the original fixup via the
1185 tc_fix_data field. */
8f78d0e9
KR		 1186
1187static void
1188fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
1189 r_type, r_field, r_format, arg_reloc, unwind_desc)
1190 fragS *frag;
1191 int where;
1192 short int size;
1193 symbolS *add_symbol;
1194 long offset;
1195 expressionS *exp;
1196 int pcrel;
1197 bfd_reloc_code_real_type r_type;
f2eed884 1198 enum hppa_reloc_field_selector_type r_field;
8f78d0e9
KR		 1199 int r_format;
1200 long arg_reloc;
1201 char *unwind_desc;
1202{
1203 fixS *new_fix;
1204
1205 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
c5e9ccd0 1206 obstack_alloc (&notes, sizeof (struct hppa_fix_struct));
8f78d0e9
KR		 1207
1208 if (exp != NULL)
1209 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1210 else
1211 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
aa8b30ed 1212 new_fix->tc_fix_data = hppa_fix;
8f78d0e9
KR		 1213 hppa_fix->fx_r_type = r_type;
1214 hppa_fix->fx_r_field = r_field;
1215 hppa_fix->fx_r_format = r_format;
1216 hppa_fix->fx_arg_reloc = arg_reloc;
fca59f9d 1217 hppa_fix->segment = now_seg;
8f78d0e9 1218 if (unwind_desc)
ff852e11
JL		 1219 {
1220 bcopy (unwind_desc, hppa_fix->fx_unwind, 8);
025b0302 1221
ff852e11 1222 /* If necessary call BFD backend function to attach the
c5e9ccd0
JL		 1223 unwind bits to the target dependent parts of a BFD symbol.
1224 Yuk. */
ff852e11
JL		 1225#ifdef obj_attach_unwind_info
1226 obj_attach_unwind_info (add_symbol->bsym, unwind_desc);
1227#endif
1228 }
25989392
JL		 1229
1230 /* foo-$global$ is used to access non-automatic storage. $global$
1231 is really just a marker and has served its purpose, so eliminate
1232 it now so as not to confuse write.c. */
81413fa2
JL		 1233 if (new_fix->fx_subsy
1234 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
25989392 1235 new_fix->fx_subsy = NULL;
025b0302
ME		 1236}
1237
1238/* Parse a .byte, .word, .long expression for the HPPA. Called by
1239 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1240
025b0302
ME		 1241void
1242parse_cons_expression_hppa (exp)
1243 expressionS *exp;
1244{
1245 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
5cf4cd1b 1246 expression (exp);
025b0302
ME		 1247}
1248
1249/* This fix_new is called by cons via TC_CONS_FIX_NEW.
1250 hppa_field_selector is set by the parse_cons_expression_hppa. */
1251
1252void
1253cons_fix_new_hppa (frag, where, size, exp)
8f78d0e9
KR		 1254 fragS *frag;
1255 int where;
1256 int size;
1257 expressionS *exp;
025b0302 1258{
4047ff1d 1259 unsigned int rel_type;
025b0302
ME		 1260
1261 if (is_DP_relative (*exp))
4047ff1d 1262 rel_type = R_HPPA_GOTOFF;
025b0302 1263 else if (is_complex (*exp))
4047ff1d 1264 rel_type = R_HPPA_COMPLEX;
025b0302 1265 else
4047ff1d 1266 rel_type = R_HPPA;
025b0302
ME		 1267
1268 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
8f78d0e9 1269 as_warn ("Invalid field selector. Assuming F%%.");
025b0302 1270
5cf4cd1b 1271 fix_new_hppa (frag, where, size,
4047ff1d 1272 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
025b0302 1273 hppa_field_selector, 32, 0, (char *) 0);
1cc248d2
JL		 1274
1275 /* Reset field selector to its default state. */
1276 hppa_field_selector = 0;
025b0302
ME		 1277}
1278
1279/* This function is called once, at assembler startup time. It should
1280 set up all the tables, etc. that the MD part of the assembler will need. */
8f78d0e9 1281
025b0302
ME		 1282void
1283md_begin ()
1284{
18c4f112 1285 const char *retval = NULL;
025b0302 1286 int lose = 0;
8f78d0e9 1287 unsigned int i = 0;
025b0302
ME		 1288
1289 last_call_info = NULL;
1290 call_info_root = NULL;
1291
13925cef
JL		 1292 /* Folding of text and data segments fails miserably on the PA.
1293 Warn user and disable "-R" option. */
d56f45f5
JL		 1294 if (flagseen['R'])
1295 {
1296 as_warn ("-R option not supported on this target.");
1297 flag_readonly_data_in_text = 0;
1298 flagseen['R'] = 0;
1299 }
13925cef 1300
025b0302
ME		 1301 pa_spaces_begin ();
1302
1303 op_hash = hash_new ();
025b0302
ME		 1304
1305 while (i < NUMOPCODES)
1306 {
1307 const char *name = pa_opcodes[i].name;
c5e9ccd0 1308 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
8f78d0e9 1309 if (retval != NULL && *retval != '\0')
025b0302 1310 {
8f78d0e9 1311 as_fatal ("Internal error: can't hash `%s': %s\n", name, retval);
025b0302
ME		 1312 lose = 1;
1313 }
1314 do
1315 {
c5e9ccd0 1316 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
8f78d0e9 1317 != pa_opcodes[i].match)
025b0302
ME		 1318 {
1319 fprintf (stderr, "internal error: losing opcode: `%s' \"%s\"\n",
1320 pa_opcodes[i].name, pa_opcodes[i].args);
1321 lose = 1;
1322 }
1323 ++i;
1324 }
8f78d0e9 1325 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
025b0302
ME		 1326 }
1327
1328 if (lose)
1329 as_fatal ("Broken assembler. No assembly attempted.");
3b9a72c5
JL		 1330
1331 /* SOM will change text_section. To make sure we never put
1332 anything into the old one switch to the new one now. */
1333 subseg_set (text_section, 0);
8f78d0e9 1334
6868afe6 1335 dummy_symbol = symbol_find_or_make ("L$dummy");
fca59f9d 1336 S_SET_SEGMENT (dummy_symbol, text_section);
025b0302
ME		 1337}
1338
8f78d0e9 1339/* Assemble a single instruction storing it into a frag. */
025b0302
ME		 1340void
1341md_assemble (str)
1342 char *str;
1343{
8f78d0e9 1344 char *to;
025b0302 1345
8f78d0e9 1346 /* The had better be something to assemble. */
025b0302 1347 assert (str);
8f78d0e9 1348
4047ff1d
JL		 1349 /* If we are within a procedure definition, make sure we've
1350 defined a label for the procedure; handle case where the
86066d06
JL		 1351 label was defined after the .PROC directive.
1352
1353 Note there's not need to diddle with the segment or fragment
1354 for the label symbol in this case. We have already switched
1355 into the new $CODE$ subspace at this point. */
4047ff1d
JL		 1356 if (within_procedure && last_call_info->start_symbol == NULL)
1357 {
1358 label_symbol_struct *label_symbol = pa_get_label ();
1359
1360 if (label_symbol)
1361 {
1362 if (label_symbol->lss_label)
1363 {
1364 last_call_info->start_symbol = label_symbol->lss_label;
1365 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
86066d06
JL		 1366#ifdef OBJ_SOM
1367 /* Also handle allocation of a fixup to hold the unwind
1368 information when the label appears after the proc/procend. */
1369 if (within_entry_exit)
1370 {
1371 char *where = frag_more (0);
1372
1373 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
1374 last_call_info->start_symbol, (offsetT) 0, NULL,
1375 0, R_HPPA_ENTRY, e_fsel, 0, 0,
1376 (char *) &last_call_info->ci_unwind.descriptor);
1377 }
1378#endif
4047ff1d
JL		 1379 }
1380 else
1381 as_bad ("Missing function name for .PROC (corrupted label chain)");
1382 }
1383 else
1384 as_bad ("Missing function name for .PROC");
1385 }
1386
8f78d0e9 1387 /* Assemble the instruction. Results are saved into "the_insn". */
025b0302 1388 pa_ip (str);
025b0302 1389
8f78d0e9
KR		 1390 /* Get somewhere to put the assembled instrution. */
1391 to = frag_more (4);
025b0302 1392
8f78d0e9
KR		 1393 /* Output the opcode. */
1394 md_number_to_chars (to, the_insn.opcode, 4);
025b0302 1395
8f78d0e9 1396 /* If necessary output more stuff. */
aa8b30ed 1397 if (the_insn.reloc != R_HPPA_NONE)
8f78d0e9
KR		 1398 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1399 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1400 the_insn.reloc, the_insn.field_selector,
1401 the_insn.format, the_insn.arg_reloc, NULL);
8f78d0e9 1402}
025b0302 1403
8f78d0e9 1404/* Do the real work for assembling a single instruction. Store results
dd2f509f 1405 into the global "the_insn" variable. */
025b0302
ME		 1406
1407static void
1408pa_ip (str)
1409 char *str;
1410{
1411 char *error_message = "";
8f78d0e9 1412 char *s, c, *argstart, *name, *save_s;
025b0302 1413 const char *args;
025b0302
ME		 1414 int match = FALSE;
1415 int comma = 0;
48153d49
JL		 1416 int cmpltr, nullif, flag, cond, num;
1417 unsigned long opcode;
8f78d0e9 1418 struct pa_opcode *insn;
025b0302 1419
8f78d0e9 1420 /* Skip to something interesting. */
025b0302
ME		 1421 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1422 ;
8f78d0e9 1423
025b0302
ME		 1424 switch (*s)
1425 {
1426
1427 case '\0':
1428 break;
1429
1430 case ',':
1431 comma = 1;
1432
8f78d0e9 1433 /*FALLTHROUGH */
025b0302
ME		 1434
1435 case ' ':
1436 *s++ = '\0';
1437 break;
1438
1439 default:
1440 as_bad ("Unknown opcode: `%s'", str);
1441 exit (1);
1442 }
1443
1444 save_s = str;
1445
8f78d0e9 1446 /* Convert everything into lower case. */
025b0302
ME		 1447 while (*save_s)
1448 {
1449 if (isupper (*save_s))
1450 *save_s = tolower (*save_s);
1451 save_s++;
1452 }
1453
8f78d0e9 1454 /* Look up the opcode in the has table. */
025b0302
ME		 1455 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1456 {
1457 as_bad ("Unknown opcode: `%s'", str);
1458 return;
1459 }
8f78d0e9 1460
025b0302
ME		 1461 if (comma)
1462 {
1463 *--s = ',';
1464 }
8f78d0e9
KR		 1465
1466 /* Mark the location where arguments for the instruction start, then
1467 start processing them. */
1468 argstart = s;
025b0302
ME		 1469 for (;;)
1470 {
8f78d0e9 1471 /* Do some initialization. */
025b0302
ME		 1472 opcode = insn->match;
1473 bzero (&the_insn, sizeof (the_insn));
8f78d0e9 1474
025b0302 1475 the_insn.reloc = R_HPPA_NONE;
8f78d0e9
KR		 1476
1477 /* Build the opcode, checking as we go to make
1478 sure that the operands match. */
025b0302
ME		 1479 for (args = insn->args;; ++args)
1480 {
025b0302
ME		 1481 switch (*args)
1482 {
1483
8f78d0e9
KR		 1484 /* End of arguments. */
1485 case '\0':
025b0302 1486 if (*s == '\0')
8f78d0e9 1487 match = TRUE;
025b0302
ME		 1488 break;
1489
1490 case '+':
1491 if (*s == '+')
1492 {
1493 ++s;
1494 continue;
1495 }
1496 if (*s == '-')
8f78d0e9 1497 continue;
025b0302
ME		 1498 break;
1499
8f78d0e9
KR		 1500 /* These must match exactly. */
1501 case '(':
025b0302
ME		 1502 case ')':
1503 case ',':
1504 case ' ':
1505 if (*s++ == *args)
1506 continue;
1507 break;
1508
8f78d0e9
KR		 1509 /* Handle a 5 bit register or control register field at 10. */
1510 case 'b':
1511 case '^':
48153d49
JL		 1512 num = pa_parse_number (&s, 0);
1513 CHECK_FIELD (num, 31, 0, 0);
1514 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 1515
1516 /* Handle a 5 bit register field at 15. */
1517 case 'x':
48153d49
JL		 1518 num = pa_parse_number (&s, 0);
1519 CHECK_FIELD (num, 31, 0, 0);
1520 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
5cf4cd1b 1521
8f78d0e9
KR		 1522 /* Handle a 5 bit register field at 31. */
1523 case 'y':
1524 case 't':
48153d49
JL		 1525 num = pa_parse_number (&s, 0);
1526 CHECK_FIELD (num, 31, 0, 0);
1527 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 1528
1529 /* Handle a 5 bit field length at 31. */
1530 case 'T':
48153d49
JL		 1531 num = pa_get_absolute_expression (&the_insn, &s);
1532 s = expr_end;
1533 CHECK_FIELD (num, 32, 1, 0);
1534 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
8f78d0e9
KR		 1535
1536 /* Handle a 5 bit immediate at 15. */
1537 case '5':
48153d49
JL		 1538 num = pa_get_absolute_expression (&the_insn, &s);
1539 s = expr_end;
1540 CHECK_FIELD (num, 15, -16, 0);
1541 low_sign_unext (num, 5, &num);
1542 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1543
48153d49
JL		 1544 /* Handle a 5 bit immediate at 31. */
1545 case 'V':
1546 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 1547 s = expr_end;
48153d49 1548 CHECK_FIELD (num, 15, -16, 0)
c5e9ccd0 1549 low_sign_unext (num, 5, &num);
48153d49
JL		 1550 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1551
1552 /* Handle an unsigned 5 bit immediate at 31. */
1553 case 'r':
1554 num = pa_get_absolute_expression (&the_insn, &s);
1555 s = expr_end;
1556 CHECK_FIELD (num, 31, 0, 0);
1557 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1558
1559 /* Handle an unsigned 5 bit immediate at 15. */
1560 case 'R':
1561 num = pa_get_absolute_expression (&the_insn, &s);
1562 s = expr_end;
1563 CHECK_FIELD (num, 31, 0, 0);
1564 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1565
8f78d0e9
KR		 1566 /* Handle a 2 bit space identifier at 17. */
1567 case 's':
48153d49
JL		 1568 num = pa_parse_number (&s, 0);
1569 CHECK_FIELD (num, 3, 0, 1);
1570 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
8f78d0e9
KR		 1571
1572 /* Handle a 3 bit space identifier at 18. */
1573 case 'S':
48153d49
JL		 1574 num = pa_parse_number (&s, 0);
1575 CHECK_FIELD (num, 7, 0, 1);
1576 dis_assemble_3 (num, &num);
1577 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 1578
1579 /* Handle a completer for an indexing load or store. */
1580 case 'c':
48153d49
JL		 1581 {
1582 int uu = 0;
1583 int m = 0;
1584 int i = 0;
1585 while (*s == ',' && i < 2)
1586 {
1587 s++;
1588 if (strncasecmp (s, "sm", 2) == 0)
1589 {
1590 uu = 1;
1591 m = 1;
1592 s++;
1593 i++;
1594 }
1595 else if (strncasecmp (s, "m", 1) == 0)
025b0302 1596 m = 1;
48153d49
JL		 1597 else if (strncasecmp (s, "s", 1) == 0)
1598 uu = 1;
1599 else
1600 as_bad ("Invalid Indexed Load Completer.");
1601 s++;
1602 i++;
1603 }
1604 if (i > 2)
1605 as_bad ("Invalid Indexed Load Completer Syntax.");
1606 opcode |= m << 5;
1607 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
1608 }
8f78d0e9
KR		 1609
1610 /* Handle a short load/store completer. */
1611 case 'C':
48153d49
JL		 1612 {
1613 int a = 0;
1614 int m = 0;
1615 if (*s == ',')
1616 {
1617 s++;
1618 if (strncasecmp (s, "ma", 2) == 0)
1619 {
1620 a = 0;
1621 m = 1;
1622 }
1623 else if (strncasecmp (s, "mb", 2) == 0)
1624 {
1625 a = 1;
1626 m = 1;
1627 }
1628 else
1629 as_bad ("Invalid Short Load/Store Completer.");
1630 s += 2;
1631 }
1632 opcode |= m << 5;
1633 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1634 }
8f78d0e9
KR		 1635
1636 /* Handle a stbys completer. */
1637 case 'Y':
48153d49
JL		 1638 {
1639 int a = 0;
1640 int m = 0;
1641 int i = 0;
1642 while (*s == ',' && i < 2)
1643 {
1644 s++;
1645 if (strncasecmp (s, "m", 1) == 0)
1646 m = 1;
1647 else if (strncasecmp (s, "b", 1) == 0)
1648 a = 0;
1649 else if (strncasecmp (s, "e", 1) == 0)
1650 a = 1;
1651 else
1652 as_bad ("Invalid Store Bytes Short Completer");
1653 s++;
1654 i++;
1655 }
1656 if (i > 2)
1657 as_bad ("Invalid Store Bytes Short Completer");
1658 opcode |= m << 5;
1659 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1660 }
8f78d0e9
KR		 1661
1662 /* Handle a non-negated compare/stubtract condition. */
1663 case '<':
5cf4cd1b 1664 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1665 if (cmpltr < 0)
1666 {
8f78d0e9 1667 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
025b0302
ME		 1668 cmpltr = 0;
1669 }
48153d49 1670 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1671
1672 /* Handle a negated or non-negated compare/subtract condition. */
1673 case '?':
025b0302 1674 save_s = s;
5cf4cd1b 1675 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1676 if (cmpltr < 0)
1677 {
1678 s = save_s;
5cf4cd1b 1679 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1680 if (cmpltr < 0)
1681 {
8f78d0e9 1682 as_bad ("Invalid Compare/Subtract Condition.");
025b0302
ME		 1683 cmpltr = 0;
1684 }
1685 else
1686 {
8f78d0e9
KR		 1687 /* Negated condition requires an opcode change. */
1688 opcode |= 1 << 27;
025b0302
ME		 1689 }
1690 }
48153d49 1691 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1692
1693 /* Handle a negated or non-negated add condition. */
1694 case '!':
025b0302 1695 save_s = s;
5cf4cd1b 1696 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
025b0302
ME		 1697 if (cmpltr < 0)
1698 {
1699 s = save_s;
5cf4cd1b 1700 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
025b0302
ME		 1701 if (cmpltr < 0)
1702 {
8f78d0e9 1703 as_bad ("Invalid Compare/Subtract Condition");
025b0302
ME		 1704 cmpltr = 0;
1705 }
1706 else
1707 {
8f78d0e9
KR		 1708 /* Negated condition requires an opcode change. */
1709 opcode |= 1 << 27;
025b0302
ME		 1710 }
1711 }
48153d49 1712 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1713
1714 /* Handle a compare/subtract condition. */
1715 case 'a':
025b0302 1716 cmpltr = 0;
8f78d0e9 1717 flag = 0;
025b0302
ME		 1718 save_s = s;
1719 if (*s == ',')
1720 {
5cf4cd1b 1721 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 0);
025b0302
ME		 1722 if (cmpltr < 0)
1723 {
8f78d0e9 1724 flag = 1;
025b0302 1725 s = save_s;
5cf4cd1b 1726 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 0);
025b0302
ME		 1727 if (cmpltr < 0)
1728 {
8f78d0e9 1729 as_bad ("Invalid Compare/Subtract Condition");
025b0302
ME		 1730 }
1731 }
1732 }
1733 opcode |= cmpltr << 13;
48153d49 1734 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1735
1736 /* Handle a non-negated add condition. */
1737 case 'd':
025b0302
ME		 1738 cmpltr = 0;
1739 nullif = 0;
1740 flag = 0;
1741 if (*s == ',')
1742 {
1743 s++;
1744 name = s;
1745 while (*s != ',' && *s != ' ' && *s != '\t')
1746 s += 1;
1747 c = *s;
1748 *s = 0x00;
1749 if (strcmp (name, "=") == 0)
8f78d0e9 1750 cmpltr = 1;
025b0302 1751 else if (strcmp (name, "<") == 0)
8f78d0e9 1752 cmpltr = 2;
025b0302 1753 else if (strcmp (name, "<=") == 0)
8f78d0e9 1754 cmpltr = 3;
025b0302 1755 else if (strcasecmp (name, "nuv") == 0)
8f78d0e9 1756 cmpltr = 4;
025b0302 1757 else if (strcasecmp (name, "znv") == 0)
8f78d0e9 1758 cmpltr = 5;
025b0302 1759 else if (strcasecmp (name, "sv") == 0)
8f78d0e9 1760 cmpltr = 6;
025b0302 1761 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1762 cmpltr = 7;
025b0302 1763 else if (strcasecmp (name, "n") == 0)
8f78d0e9 1764 nullif = 1;
025b0302
ME		 1765 else if (strcasecmp (name, "tr") == 0)
1766 {
1767 cmpltr = 0;
1768 flag = 1;
1769 }
4047ff1d 1770 else if (strcmp (name, "<>") == 0)
025b0302
ME		 1771 {
1772 cmpltr = 1;
1773 flag = 1;
1774 }
4047ff1d 1775 else if (strcmp (name, ">=") == 0)
025b0302
ME		 1776 {
1777 cmpltr = 2;
1778 flag = 1;
1779 }
4047ff1d 1780 else if (strcmp (name, ">") == 0)
025b0302
ME		 1781 {
1782 cmpltr = 3;
1783 flag = 1;
1784 }
1785 else if (strcasecmp (name, "uv") == 0)
1786 {
1787 cmpltr = 4;
1788 flag = 1;
1789 }
1790 else if (strcasecmp (name, "vnz") == 0)
1791 {
1792 cmpltr = 5;
1793 flag = 1;
1794 }
1795 else if (strcasecmp (name, "nsv") == 0)
1796 {
1797 cmpltr = 6;
1798 flag = 1;
1799 }
1800 else if (strcasecmp (name, "ev") == 0)
1801 {
1802 cmpltr = 7;
1803 flag = 1;
1804 }
1805 else
8f78d0e9 1806 as_bad ("Invalid Add Condition: %s", name);
025b0302
ME		 1807 *s = c;
1808 }
1809 nullif = pa_parse_nullif (&s);
1810 opcode |= nullif << 1;
1811 opcode |= cmpltr << 13;
48153d49 1812 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9 1813
48153d49 1814 /* HANDLE a logical instruction condition. */
8f78d0e9 1815 case '&':
025b0302 1816 cmpltr = 0;
8f78d0e9 1817 flag = 0;
025b0302
ME		 1818 if (*s == ',')
1819 {
1820 s++;
1821 name = s;
1822 while (*s != ',' && *s != ' ' && *s != '\t')
1823 s += 1;
1824 c = *s;
1825 *s = 0x00;
1826 if (strcmp (name, "=") == 0)
8f78d0e9 1827 cmpltr = 1;
025b0302 1828 else if (strcmp (name, "<") == 0)
8f78d0e9 1829 cmpltr = 2;
025b0302 1830 else if (strcmp (name, "<=") == 0)
8f78d0e9 1831 cmpltr = 3;
025b0302 1832 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1833 cmpltr = 7;
025b0302
ME		 1834 else if (strcasecmp (name, "tr") == 0)
1835 {
1836 cmpltr = 0;
8f78d0e9 1837 flag = 1;
025b0302
ME		 1838 }
1839 else if (strcmp (name, "<>") == 0)
1840 {
1841 cmpltr = 1;
8f78d0e9 1842 flag = 1;
025b0302
ME		 1843 }
1844 else if (strcmp (name, ">=") == 0)
1845 {
1846 cmpltr = 2;
8f78d0e9 1847 flag = 1;
025b0302
ME		 1848 }
1849 else if (strcmp (name, ">") == 0)
1850 {
1851 cmpltr = 3;
8f78d0e9 1852 flag = 1;
025b0302
ME		 1853 }
1854 else if (strcasecmp (name, "ev") == 0)
1855 {
1856 cmpltr = 7;
8f78d0e9 1857 flag = 1;
025b0302
ME		 1858 }
1859 else
8f78d0e9 1860 as_bad ("Invalid Logical Instruction Condition.");
025b0302
ME		 1861 *s = c;
1862 }
1863 opcode |= cmpltr << 13;
48153d49 1864 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1865
1866 /* Handle a unit instruction condition. */
1867 case 'U':
025b0302 1868 cmpltr = 0;
8f78d0e9 1869 flag = 0;
025b0302
ME		 1870 if (*s == ',')
1871 {
1872 s++;
1873 if (strncasecmp (s, "sbz", 3) == 0)
1874 {
1875 cmpltr = 2;
1876 s += 3;
1877 }
1878 else if (strncasecmp (s, "shz", 3) == 0)
1879 {
1880 cmpltr = 3;
1881 s += 3;
1882 }
1883 else if (strncasecmp (s, "sdc", 3) == 0)
1884 {
1885 cmpltr = 4;
1886 s += 3;
1887 }
1888 else if (strncasecmp (s, "sbc", 3) == 0)
1889 {
1890 cmpltr = 6;
1891 s += 3;
1892 }
1893 else if (strncasecmp (s, "shc", 3) == 0)
1894 {
1895 cmpltr = 7;
1896 s += 3;
1897 }
1898 else if (strncasecmp (s, "tr", 2) == 0)
1899 {
1900 cmpltr = 0;
8f78d0e9 1901 flag = 1;
025b0302
ME		 1902 s += 2;
1903 }
1904 else if (strncasecmp (s, "nbz", 3) == 0)
1905 {
1906 cmpltr = 2;
8f78d0e9 1907 flag = 1;
025b0302
ME		 1908 s += 3;
1909 }
1910 else if (strncasecmp (s, "nhz", 3) == 0)
1911 {
1912 cmpltr = 3;
8f78d0e9 1913 flag = 1;
025b0302
ME		 1914 s += 3;
1915 }
1916 else if (strncasecmp (s, "ndc", 3) == 0)
1917 {
1918 cmpltr = 4;
8f78d0e9 1919 flag = 1;
025b0302
ME		 1920 s += 3;
1921 }
1922 else if (strncasecmp (s, "nbc", 3) == 0)
1923 {
1924 cmpltr = 6;
8f78d0e9 1925 flag = 1;
025b0302
ME		 1926 s += 3;
1927 }
1928 else if (strncasecmp (s, "nhc", 3) == 0)
1929 {
1930 cmpltr = 7;
8f78d0e9 1931 flag = 1;
025b0302
ME		 1932 s += 3;
1933 }
1934 else
8f78d0e9 1935 as_bad ("Invalid Logical Instruction Condition.");
025b0302
ME		 1936 }
1937 opcode |= cmpltr << 13;
48153d49 1938 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1939
1940 /* Handle a shift/extract/deposit condition. */
1941 case '|':
1942 case '>':
025b0302
ME		 1943 cmpltr = 0;
1944 if (*s == ',')
1945 {
8f78d0e9 1946 save_s = s++;
025b0302
ME		 1947 name = s;
1948 while (*s != ',' && *s != ' ' && *s != '\t')
1949 s += 1;
1950 c = *s;
1951 *s = 0x00;
1952 if (strcmp (name, "=") == 0)
8f78d0e9 1953 cmpltr = 1;
025b0302 1954 else if (strcmp (name, "<") == 0)
8f78d0e9 1955 cmpltr = 2;
025b0302 1956 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1957 cmpltr = 3;
025b0302 1958 else if (strcasecmp (name, "tr") == 0)
8f78d0e9 1959 cmpltr = 4;
025b0302 1960 else if (strcmp (name, "<>") == 0)
8f78d0e9 1961 cmpltr = 5;
025b0302 1962 else if (strcmp (name, ">=") == 0)
8f78d0e9 1963 cmpltr = 6;
025b0302 1964 else if (strcasecmp (name, "ev") == 0)
8f78d0e9 1965 cmpltr = 7;
5cf4cd1b
KR		 1966 /* Handle movb,n. Put things back the way they were.
1967 This includes moving s back to where it started. */
1968 else if (strcasecmp (name, "n") == 0 && *args == '|')
1969 {
1970 *s = c;
1971 s = save_s;
1972 continue;
1973 }
025b0302 1974 else
8f78d0e9 1975 as_bad ("Invalid Shift/Extract/Deposit Condition.");
025b0302
ME		 1976 *s = c;
1977 }
48153d49 1978 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1979
1980 /* Handle bvb and bb conditions. */
1981 case '~':
025b0302
ME		 1982 cmpltr = 0;
1983 if (*s == ',')
1984 {
1985 s++;
1986 if (strncmp (s, "<", 1) == 0)
1987 {
1988 cmpltr = 2;
1989 s++;
1990 }
1991 else if (strncmp (s, ">=", 2) == 0)
1992 {
1993 cmpltr = 6;
1994 s += 2;
1995 }
1996 else
8f78d0e9 1997 as_bad ("Invalid Bit Branch Condition: %c", *s);
025b0302 1998 }
48153d49 1999 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9 2000
48153d49
JL		 2001 /* Handle a system control completer. */
2002 case 'Z':
2003 if (*s == ',' && (*(s + 1) == 'm' || *(s + 1) == 'M'))
025b0302 2004 {
48153d49
JL		 2005 flag = 1;
2006 s += 2;
025b0302 2007 }
48153d49
JL		 2008 else
2009 flag = 0;
8f78d0e9 2010
48153d49
JL		 2011 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
2012
2013 /* Handle a nullification completer for branch instructions. */
2014 case 'n':
2015 nullif = pa_parse_nullif (&s);
2016 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
8f78d0e9 2017
d0286a21
JL		 2018 /* Handle a nullification completer for copr and spop insns. */
2019 case 'N':
2020 nullif = pa_parse_nullif (&s);
2021 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2022
8f78d0e9
KR		 2023 /* Handle a 11 bit immediate at 31. */
2024 case 'i':
2025 the_insn.field_selector = pa_chk_field_selector (&s);
2026 get_expression (s);
48153d49 2027 s = expr_end;
5cf4cd1b 2028 if (the_insn.exp.X_op == O_constant)
025b0302 2029 {
48153d49
JL		 2030 num = evaluate_absolute (&the_insn);
2031 CHECK_FIELD (num, 1023, -1024, 0);
2032 low_sign_unext (num, 11, &num);
2033 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2034 }
2035 else
2036 {
025b0302
ME		 2037 if (is_DP_relative (the_insn.exp))
2038 the_insn.reloc = R_HPPA_GOTOFF;
2039 else if (is_PC_relative (the_insn.exp))
2040 the_insn.reloc = R_HPPA_PCREL_CALL;
2041 else if (is_complex (the_insn.exp))
2042 the_insn.reloc = R_HPPA_COMPLEX;
2043 else
2044 the_insn.reloc = R_HPPA;
2045 the_insn.format = 11;
48153d49 2046 continue;
025b0302 2047 }
8f78d0e9
KR		 2048
2049 /* Handle a 14 bit immediate at 31. */
2050 case 'j':
025b0302 2051 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2052 get_expression (s);
48153d49 2053 s = expr_end;
5cf4cd1b 2054 if (the_insn.exp.X_op == O_constant)
025b0302 2055 {
48153d49
JL		 2056 num = evaluate_absolute (&the_insn);
2057 CHECK_FIELD (num, 8191, -8192, 0);
2058 low_sign_unext (num, 14, &num);
2059 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2060 }
2061 else
2062 {
2063 if (is_DP_relative (the_insn.exp))
2064 the_insn.reloc = R_HPPA_GOTOFF;
2065 else if (is_PC_relative (the_insn.exp))
2066 the_insn.reloc = R_HPPA_PCREL_CALL;
2067 else if (is_complex (the_insn.exp))
2068 the_insn.reloc = R_HPPA_COMPLEX;
2069 else
2070 the_insn.reloc = R_HPPA;
2071 the_insn.format = 14;
48153d49 2072 continue;
025b0302 2073 }
025b0302 2074
8f78d0e9
KR		 2075 /* Handle a 21 bit immediate at 31. */
2076 case 'k':
2077 the_insn.field_selector = pa_chk_field_selector (&s);
2078 get_expression (s);
48153d49 2079 s = expr_end;
5cf4cd1b 2080 if (the_insn.exp.X_op == O_constant)
025b0302 2081 {
48153d49 2082 num = evaluate_absolute (&the_insn);
c5e9ccd0 2083 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
48153d49
JL		 2084 dis_assemble_21 (num, &num);
2085 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2086 }
2087 else
2088 {
025b0302
ME		 2089 if (is_DP_relative (the_insn.exp))
2090 the_insn.reloc = R_HPPA_GOTOFF;
2091 else if (is_PC_relative (the_insn.exp))
2092 the_insn.reloc = R_HPPA_PCREL_CALL;
2093 else if (is_complex (the_insn.exp))
2094 the_insn.reloc = R_HPPA_COMPLEX;
2095 else
2096 the_insn.reloc = R_HPPA;
2097 the_insn.format = 21;
48153d49 2098 continue;
025b0302 2099 }
8f78d0e9
KR		 2100
2101 /* Handle a 12 bit branch displacement. */
2102 case 'w':
2103 the_insn.field_selector = pa_chk_field_selector (&s);
2104 get_expression (s);
48153d49 2105 s = expr_end;
025b0302 2106 the_insn.pcrel = 1;
48153d49 2107 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
025b0302
ME		 2108 {
2109 unsigned int w1, w, result;
2110
48153d49
JL		 2111 num = evaluate_absolute (&the_insn);
2112 if (num % 4)
2113 {
2114 as_bad ("Branch to unaligned address");
2115 break;
2116 }
2117 CHECK_FIELD (num, 8191, -8192, 0);
2118 sign_unext ((num - 8) >> 2, 12, &result);
025b0302 2119 dis_assemble_12 (result, &w1, &w);
48153d49 2120 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
025b0302
ME		 2121 }
2122 else
2123 {
025b0302
ME		 2124 if (is_complex (the_insn.exp))
2125 the_insn.reloc = R_HPPA_COMPLEX_PCREL_CALL;
2126 else
2127 the_insn.reloc = R_HPPA_PCREL_CALL;
2128 the_insn.format = 12;
2129 the_insn.arg_reloc = last_call_desc.arg_reloc;
8f78d0e9 2130 bzero (&last_call_desc, sizeof (struct call_desc));
48153d49
JL		 2131 s = expr_end;
2132 continue;
025b0302 2133 }
8f78d0e9
KR		 2134
2135 /* Handle a 17 bit branch displacement. */
2136 case 'W':
025b0302 2137 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2138 get_expression (s);
48153d49 2139 s = expr_end;
025b0302 2140 the_insn.pcrel = 1;
c5e9ccd0 2141 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2142 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2143 "L$0\001"))
025b0302 2144 {
48153d49 2145 unsigned int w2, w1, w, result;
025b0302 2146
48153d49
JL		 2147 num = evaluate_absolute (&the_insn);
2148 if (num % 4)
025b0302 2149 {
48153d49
JL		 2150 as_bad ("Branch to unaligned address");
2151 break;
025b0302 2152 }
48153d49
JL		 2153 CHECK_FIELD (num, 262143, -262144, 0);
2154
2155 if (the_insn.exp.X_add_symbol)
2156 num -= 8;
2157
2158 sign_unext (num >> 2, 17, &result);
2159 dis_assemble_17 (result, &w1, &w2, &w);
2160 INSERT_FIELD_AND_CONTINUE (opcode,
c5e9ccd0 2161 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2162 }
2163 else
2164 {
48153d49
JL		 2165 if (is_complex (the_insn.exp))
2166 the_insn.reloc = R_HPPA_COMPLEX_PCREL_CALL;
2167 else
2168 the_insn.reloc = R_HPPA_PCREL_CALL;
2169 the_insn.format = 17;
2170 the_insn.arg_reloc = last_call_desc.arg_reloc;
2171 bzero (&last_call_desc, sizeof (struct call_desc));
2172 continue;
025b0302 2173 }
8f78d0e9
KR		 2174
2175 /* Handle an absolute 17 bit branch target. */
2176 case 'z':
025b0302 2177 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2178 get_expression (s);
48153d49 2179 s = expr_end;
025b0302 2180 the_insn.pcrel = 0;
c5e9ccd0 2181 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2182 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2183 "L$0\001"))
025b0302 2184 {
48153d49 2185 unsigned int w2, w1, w, result;
c5e9ccd0 2186
48153d49
JL		 2187 num = evaluate_absolute (&the_insn);
2188 if (num % 4)
025b0302 2189 {
48153d49
JL		 2190 as_bad ("Branch to unaligned address");
2191 break;
025b0302 2192 }
48153d49
JL		 2193 CHECK_FIELD (num, 262143, -262144, 0);
2194
2195 if (the_insn.exp.X_add_symbol)
2196 num -= 8;
2197
2198 sign_unext (num >> 2, 17, &result);
2199 dis_assemble_17 (result, &w1, &w2, &w);
c5e9ccd0
JL		 2200 INSERT_FIELD_AND_CONTINUE (opcode,
2201 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2202 }
2203 else
2204 {
48153d49
JL		 2205 if (is_complex (the_insn.exp))
2206 the_insn.reloc = R_HPPA_COMPLEX_ABS_CALL;
2207 else
2208 the_insn.reloc = R_HPPA_ABS_CALL;
2209 the_insn.format = 17;
2210 continue;
025b0302 2211 }
8f78d0e9
KR		 2212
2213 /* Handle a 5 bit shift count at 26. */
2214 case 'p':
48153d49 2215 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2216 s = expr_end;
48153d49
JL		 2217 CHECK_FIELD (num, 31, 0, 0);
2218 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
8f78d0e9
KR		 2219
2220 /* Handle a 5 bit bit position at 26. */
2221 case 'P':
48153d49 2222 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2223 s = expr_end;
48153d49
JL		 2224 CHECK_FIELD (num, 31, 0, 0);
2225 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
8f78d0e9
KR		 2226
2227 /* Handle a 5 bit immediate at 10. */
2228 case 'Q':
48153d49 2229 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2230 s = expr_end;
48153d49
JL		 2231 CHECK_FIELD (num, 31, 0, 0);
2232 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 2233
2234 /* Handle a 13 bit immediate at 18. */
2235 case 'A':
48153d49 2236 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2237 s = expr_end;
48153d49
JL		 2238 CHECK_FIELD (num, 4095, -4096, 0);
2239 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 2240
2241 /* Handle a 26 bit immediate at 31. */
2242 case 'D':
48153d49 2243 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2244 s = expr_end;
48153d49
JL		 2245 CHECK_FIELD (num, 671108864, 0, 0);
2246 INSERT_FIELD_AND_CONTINUE (opcode, num, 1);
8f78d0e9
KR		 2247
2248 /* Handle a 3 bit SFU identifier at 25. */
2249 case 'f':
51517966
JL		 2250 if (*s++ != ',')
2251 as_bad ("Invalid SFU identifier");
48153d49
JL		 2252 num = pa_get_absolute_expression (&the_insn, &s);
2253 s = expr_end;
2254 CHECK_FIELD (num, 7, 0, 0);
2255 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
8f78d0e9 2256
d0286a21 2257 /* Handle a 20 bit SOP field for spop0. */
8f78d0e9 2258 case 'O':
d0286a21 2259 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2260 s = expr_end;
d0286a21
JL		 2261 CHECK_FIELD (num, 1048575, 0, 0);
2262 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
2263 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2264
2265 /* Handle a 15bit SOP field for spop1. */
2266 case 'o':
2267 num = pa_get_absolute_expression (&the_insn, &s);
2268 s = expr_end;
2269 CHECK_FIELD (num, 32767, 0, 0);
2270 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
2271
2272 /* Handle a 10bit SOP field for spop3. */
2273 case '0':
2274 num = pa_get_absolute_expression (&the_insn, &s);
2275 s = expr_end;
2276 CHECK_FIELD (num, 1023, 0, 0);
2277 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
2278 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2279
2280 /* Handle a 15 bit SOP field for spop2. */
2281 case '1':
2282 num = pa_get_absolute_expression (&the_insn, &s);
2283 s = expr_end;
2284 CHECK_FIELD (num, 32767, 0, 0);
2285 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
2286 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2287
2288 /* Handle a 3-bit co-processor ID field. */
2289 case 'u':
51517966
JL		 2290 if (*s++ != ',')
2291 as_bad ("Invalid COPR identifier");
d0286a21
JL		 2292 num = pa_get_absolute_expression (&the_insn, &s);
2293 s = expr_end;
2294 CHECK_FIELD (num, 7, 0, 0);
2295 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2296
2297 /* Handle a 22bit SOP field for copr. */
2298 case '2':
2299 num = pa_get_absolute_expression (&the_insn, &s);
2300 s = expr_end;
2301 CHECK_FIELD (num, 4194303, 0, 0);
2302 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
2303 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 2304
2305 /* Handle a source FP operand format completer. */
2306 case 'F':
2307 flag = pa_parse_fp_format (&s);
8f78d0e9 2308 the_insn.fpof1 = flag;
48153d49 2309 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
8f78d0e9
KR		 2310
2311 /* Handle a destination FP operand format completer. */
2312 case 'G':
8f78d0e9
KR		 2313 /* pa_parse_format needs the ',' prefix. */
2314 s--;
2315 flag = pa_parse_fp_format (&s);
8f78d0e9 2316 the_insn.fpof2 = flag;
48153d49 2317 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
8f78d0e9
KR		 2318
2319 /* Handle FP compare conditions. */
2320 case 'M':
025b0302 2321 cond = pa_parse_fp_cmp_cond (&s);
48153d49 2322 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
025b0302 2323
8f78d0e9
KR		 2324 /* Handle L/R register halves like 't'. */
2325 case 'v':
025b0302
ME		 2326 {
2327 struct pa_89_fp_reg_struct result;
025b0302 2328
8f78d0e9 2329 pa_parse_number (&s, &result);
48153d49
JL		 2330 CHECK_FIELD (result.number_part, 31, 0, 0);
2331 opcode |= result.number_part;
025b0302 2332
48153d49
JL		 2333 /* 0x30 opcodes are FP arithmetic operation opcodes
2334 and need to be turned into 0x38 opcodes. This
2335 is not necessary for loads/stores. */
2336 if (need_89_opcode (&the_insn, &result)
2337 && ((opcode & 0xfc000000) == 0x30000000))
2338 opcode |= 1 << 27;
2339
2340 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
025b0302 2341 }
8f78d0e9
KR		 2342
2343 /* Handle L/R register halves like 'b'. */
2344 case 'E':
025b0302
ME		 2345 {
2346 struct pa_89_fp_reg_struct result;
025b0302 2347
8f78d0e9 2348 pa_parse_number (&s, &result);
48153d49
JL		 2349 CHECK_FIELD (result.number_part, 31, 0, 0);
2350 opcode |= result.number_part << 21;
2351 if (need_89_opcode (&the_insn, &result))
025b0302 2352 {
48153d49
JL		 2353 opcode |= (result.l_r_select & 1) << 7;
2354 opcode |= 1 << 27;
025b0302 2355 }
48153d49 2356 continue;
025b0302 2357 }
025b0302 2358
8f78d0e9
KR		 2359 /* Handle L/R register halves like 'x'. */
2360 case 'X':
025b0302
ME		 2361 {
2362 struct pa_89_fp_reg_struct result;
025b0302 2363
8f78d0e9 2364 pa_parse_number (&s, &result);
48153d49
JL		 2365 CHECK_FIELD (result.number_part, 31, 0, 0);
2366 opcode |= (result.number_part & 0x1f) << 16;
2367 if (need_89_opcode (&the_insn, &result))
025b0302 2368 {
48153d49
JL		 2369 opcode |= (result.l_r_select & 1) << 12;
2370 opcode |= 1 << 27;
025b0302 2371 }
48153d49 2372 continue;
025b0302 2373 }
025b0302 2374
8f78d0e9
KR		 2375 /* Handle a 5 bit register field at 10. */
2376 case '4':
025b0302
ME		 2377 {
2378 struct pa_89_fp_reg_struct result;
48153d49
JL		 2379
2380 pa_parse_number (&s, &result);
2381 CHECK_FIELD (result.number_part, 31, 0, 0);
2382 if (the_insn.fpof1 == SGL)
025b0302 2383 {
48153d49
JL		 2384 result.number_part &= 0xF;
2385 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2386 }
48153d49 2387 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
025b0302 2388 }
025b0302 2389
8f78d0e9
KR		 2390 /* Handle a 5 bit register field at 15. */
2391 case '6':
025b0302
ME		 2392 {
2393 struct pa_89_fp_reg_struct result;
025b0302 2394
48153d49
JL		 2395 pa_parse_number (&s, &result);
2396 CHECK_FIELD (result.number_part, 31, 0, 0);
2397 if (the_insn.fpof1 == SGL)
025b0302 2398 {
48153d49
JL		 2399 result.number_part &= 0xF;
2400 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2401 }
48153d49 2402 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
025b0302 2403 }
025b0302 2404
8f78d0e9
KR		 2405 /* Handle a 5 bit register field at 31. */
2406 case '7':
025b0302
ME		 2407 {
2408 struct pa_89_fp_reg_struct result;
025b0302 2409
48153d49
JL		 2410 pa_parse_number (&s, &result);
2411 CHECK_FIELD (result.number_part, 31, 0, 0);
2412 if (the_insn.fpof1 == SGL)
025b0302 2413 {
48153d49
JL		 2414 result.number_part &= 0xF;
2415 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2416 }
48153d49 2417 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 0);
025b0302 2418 }
025b0302 2419
8f78d0e9
KR		 2420 /* Handle a 5 bit register field at 20. */
2421 case '8':
025b0302
ME		 2422 {
2423 struct pa_89_fp_reg_struct result;
025b0302 2424
48153d49
JL		 2425 pa_parse_number (&s, &result);
2426 CHECK_FIELD (result.number_part, 31, 0, 0);
2427 if (the_insn.fpof1 == SGL)
025b0302 2428 {
48153d49
JL		 2429 result.number_part &= 0xF;
2430 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2431 }
48153d49 2432 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
025b0302 2433 }
025b0302 2434
8f78d0e9
KR		 2435 /* Handle a 5 bit register field at 25. */
2436 case '9':
025b0302
ME		 2437 {
2438 struct pa_89_fp_reg_struct result;
025b0302 2439
48153d49
JL		 2440 pa_parse_number (&s, &result);
2441 CHECK_FIELD (result.number_part, 31, 0, 0);
2442 if (the_insn.fpof1 == SGL)
025b0302 2443 {
48153d49
JL		 2444 result.number_part &= 0xF;
2445 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2446 }
48153d49 2447 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
025b0302 2448 }
025b0302 2449
8f78d0e9
KR		 2450 /* Handle a floating point operand format at 26.
2451 Only allows single and double precision. */
2452 case 'H':
2453 flag = pa_parse_fp_format (&s);
2454 switch (flag)
025b0302
ME		 2455 {
2456 case SGL:
2457 opcode |= 0x20;
2458 case DBL:
8f78d0e9 2459 the_insn.fpof1 = flag;
025b0302
ME		 2460 continue;
2461
2462 case QUAD:
2463 case ILLEGAL_FMT:
2464 default:
8f78d0e9 2465 as_bad ("Invalid Floating Point Operand Format.");
025b0302
ME		 2466 }
2467 break;
2468
2469 default:
2470 abort ();
2471 }
2472 break;
2473 }
892a3ff1 2474
8f78d0e9 2475 /* Check if the args matched. */
025b0302
ME		 2476 if (match == FALSE)
2477 {
025b0302
ME		 2478 if (&insn[1] - pa_opcodes < NUMOPCODES
2479 && !strcmp (insn->name, insn[1].name))
2480 {
2481 ++insn;
8f78d0e9 2482 s = argstart;
025b0302
ME		 2483 continue;
2484 }
2485 else
2486 {
8f78d0e9 2487 as_bad ("Invalid operands %s", error_message);
025b0302
ME		 2488 return;
2489 }
2490 }
2491 break;
2492 }
2493
2494 the_insn.opcode = opcode;
025b0302
ME		 2495}
2496
8f78d0e9 2497/* Turn a string in input_line_pointer into a floating point constant of type
025b0302 2498 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
8f78d0e9 2499 emitted is stored in *sizeP . An error message or NULL is returned. */
025b0302 2500
025b0302
ME		 2501#define MAX_LITTLENUMS 6
2502
2503char *
2504md_atof (type, litP, sizeP)
2505 char type;
2506 char *litP;
2507 int *sizeP;
2508{
2509 int prec;
2510 LITTLENUM_TYPE words[MAX_LITTLENUMS];
2511 LITTLENUM_TYPE *wordP;
2512 char *t;
025b0302
ME		 2513
2514 switch (type)
2515 {
2516
2517 case 'f':
2518 case 'F':
2519 case 's':
2520 case 'S':
2521 prec = 2;
2522 break;
2523
2524 case 'd':
2525 case 'D':
2526 case 'r':
2527 case 'R':
2528 prec = 4;
2529 break;
2530
2531 case 'x':
2532 case 'X':
2533 prec = 6;
2534 break;
2535
2536 case 'p':
2537 case 'P':
2538 prec = 6;
2539 break;
2540
2541 default:
2542 *sizeP = 0;
2543 return "Bad call to MD_ATOF()";
2544 }
2545 t = atof_ieee (input_line_pointer, type, words);
2546 if (t)
2547 input_line_pointer = t;
2548 *sizeP = prec * sizeof (LITTLENUM_TYPE);
2549 for (wordP = words; prec--;)
2550 {
8f78d0e9 2551 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
025b0302
ME		 2552 litP += sizeof (LITTLENUM_TYPE);
2553 }
aa8b30ed 2554 return NULL;
025b0302
ME		 2555}
2556
8f78d0e9
KR		 2557/* Write out big-endian. */
2558
025b0302
ME		 2559void
2560md_number_to_chars (buf, val, n)
2561 char *buf;
2562 valueT val;
2563 int n;
2564{
bfbfba45 2565 number_to_chars_bigendian (buf, val, n);
025b0302
ME		 2566}
2567
025b0302 2568/* Translate internal representation of relocation info to BFD target
62f0841b 2569 format. */
8f78d0e9 2570
025b0302
ME		 2571arelent **
2572tc_gen_reloc (section, fixp)
2573 asection *section;
2574 fixS *fixp;
2575{
2576 arelent *reloc;
aa8b30ed 2577 struct hppa_fix_struct *hppa_fixp = fixp->tc_fix_data;
025b0302
ME		 2578 bfd_reloc_code_real_type code;
2579 static int unwind_reloc_fixp_cnt = 0;
2580 static arelent *unwind_reloc_entryP = NULL;
2581 static arelent *no_relocs = NULL;
2582 arelent **relocs;
2583 bfd_reloc_code_real_type **codes;
2584 int n_relocs;
2585 int i;
2586
2587 if (fixp->fx_addsy == 0)
2588 return &no_relocs;
2589 assert (hppa_fixp != 0);
2590 assert (section != 0);
2591
62f0841b
JL		 2592#ifdef OBJ_ELF
2593 /* Yuk. I would really like to push all this ELF specific unwind
2594 crud into BFD and the linker. That's how SOM does it -- and
2595 if we could make ELF emulate that then we could share more code
2596 in GAS (and potentially a gnu-linker later).
2597
2598 Unwind section relocations are handled in a special way.
8f78d0e9
KR		 2599 The relocations for the .unwind section are originally
2600 built in the usual way. That is, for each unwind table
2601 entry there are two relocations: one for the beginning of
2602 the function and one for the end.
2603
2604 The first time we enter this function we create a
2605 relocation of the type R_HPPA_UNWIND_ENTRIES. The addend
2606 of the relocation is initialized to 0. Each additional
2607 pair of times this function is called for the unwind
2608 section represents an additional unwind table entry. Thus,
2609 the addend of the relocation should end up to be the number
2610 of unwind table entries. */
025b0302
ME		 2611 if (strcmp (UNWIND_SECTION_NAME, section->name) == 0)
2612 {
2613 if (unwind_reloc_entryP == NULL)
2614 {
c5e9ccd0 2615 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput,
8f78d0e9 2616 sizeof (arelent));
025b0302
ME		 2617 assert (reloc != 0);
2618 unwind_reloc_entryP = reloc;
2619 unwind_reloc_fixp_cnt++;
8f78d0e9
KR		 2620 unwind_reloc_entryP->address
2621 = fixp->fx_frag->fr_address + fixp->fx_where;
2622 /* A pointer to any function will do. We only
2623 need one to tell us what section the unwind
2624 relocations are for. */
025b0302 2625 unwind_reloc_entryP->sym_ptr_ptr = &fixp->fx_addsy->bsym;
8f78d0e9
KR		 2626 hppa_fixp->fx_r_type = code = R_HPPA_UNWIND_ENTRIES;
2627 fixp->fx_r_type = R_HPPA_UNWIND;
025b0302
ME		 2628 unwind_reloc_entryP->howto = bfd_reloc_type_lookup (stdoutput, code);
2629 unwind_reloc_entryP->addend = unwind_reloc_fixp_cnt / 2;
8f78d0e9
KR		 2630 relocs = (arelent **) bfd_alloc_by_size_t (stdoutput,
2631 sizeof (arelent *) * 2);
025b0302
ME		 2632 assert (relocs != 0);
2633 relocs[0] = unwind_reloc_entryP;
2634 relocs[1] = NULL;
2635 return relocs;
2636 }
2637 unwind_reloc_fixp_cnt++;
2638 unwind_reloc_entryP->addend = unwind_reloc_fixp_cnt / 2;
2639
2640 return &no_relocs;
2641 }
62f0841b 2642#endif
025b0302
ME		 2643
2644 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent));
2645 assert (reloc != 0);
2646
2647 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
aa8b30ed
JL		 2648 codes = hppa_gen_reloc_type (stdoutput,
2649 fixp->fx_r_type,
2650 hppa_fixp->fx_r_format,
2651 hppa_fixp->fx_r_field);
025b0302
ME		 2652
2653 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
2654 ;
2655
8f78d0e9
KR		 2656 relocs = (arelent **)
2657 bfd_alloc_by_size_t (stdoutput, sizeof (arelent *) * n_relocs + 1);
025b0302
ME		 2658 assert (relocs != 0);
2659
8f78d0e9
KR		 2660 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput,
2661 sizeof (arelent) * n_relocs);
025b0302
ME		 2662 if (n_relocs > 0)
2663 assert (reloc != 0);
2664
2665 for (i = 0; i < n_relocs; i++)
2666 relocs[i] = &reloc[i];
2667
2668 relocs[n_relocs] = NULL;
2669
62f0841b 2670#ifdef OBJ_ELF
025b0302
ME		 2671 switch (fixp->fx_r_type)
2672 {
2673 case R_HPPA_COMPLEX:
2674 case R_HPPA_COMPLEX_PCREL_CALL:
2675 case R_HPPA_COMPLEX_ABS_CALL:
2676 assert (n_relocs == 5);
2677
2678 for (i = 0; i < n_relocs; i++)
2679 {
2680 reloc[i].sym_ptr_ptr = NULL;
2681 reloc[i].address = 0;
2682 reloc[i].addend = 0;
2683 reloc[i].howto = bfd_reloc_type_lookup (stdoutput, *codes[i]);
2684 assert (reloc[i].howto && *codes[i] == reloc[i].howto->type);
2685 }
2686
2687 reloc[0].sym_ptr_ptr = &fixp->fx_addsy->bsym;
2688 reloc[1].sym_ptr_ptr = &fixp->fx_subsy->bsym;
2689 reloc[4].address = fixp->fx_frag->fr_address + fixp->fx_where;
2690
2691 if (fixp->fx_r_type == R_HPPA_COMPLEX)
2692 reloc[3].addend = fixp->fx_addnumber;
2693 else if (fixp->fx_r_type == R_HPPA_COMPLEX_PCREL_CALL ||
2694 fixp->fx_r_type == R_HPPA_COMPLEX_ABS_CALL)
2695 reloc[1].addend = fixp->fx_addnumber;
2696
2697 break;
2698
2699 default:
2700 assert (n_relocs == 1);
2701
2702 code = *codes[0];
2703
2704 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2705 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
2706 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2707 reloc->addend = 0; /* default */
2708
2709 assert (reloc->howto && code == reloc->howto->type);
2710
8f78d0e9 2711 /* Now, do any processing that is dependent on the relocation type. */
025b0302
ME		 2712 switch (code)
2713 {
2714 case R_HPPA_PLABEL_32:
2715 case R_HPPA_PLABEL_11:
2716 case R_HPPA_PLABEL_14:
2717 case R_HPPA_PLABEL_L21:
2718 case R_HPPA_PLABEL_R11:
2719 case R_HPPA_PLABEL_R14:
8f78d0e9
KR		 2720 /* For plabel relocations, the addend of the
2721 relocation should be either 0 (no static link) or 2
2722 (static link required).
2723
7b624bf2
JL		 2724 FIXME: We always assume no static link! */
2725 reloc->addend = 0;
025b0302
ME		 2726 break;
2727
2728 case R_HPPA_ABS_CALL_11:
2729 case R_HPPA_ABS_CALL_14:
2730 case R_HPPA_ABS_CALL_17:
2731 case R_HPPA_ABS_CALL_L21:
2732 case R_HPPA_ABS_CALL_R11:
2733 case R_HPPA_ABS_CALL_R14:
2734 case R_HPPA_ABS_CALL_R17:
2735 case R_HPPA_ABS_CALL_LS21:
2736 case R_HPPA_ABS_CALL_RS11:
2737 case R_HPPA_ABS_CALL_RS14:
2738 case R_HPPA_ABS_CALL_RS17:
2739 case R_HPPA_ABS_CALL_LD21:
2740 case R_HPPA_ABS_CALL_RD11:
2741 case R_HPPA_ABS_CALL_RD14:
2742 case R_HPPA_ABS_CALL_RD17:
2743 case R_HPPA_ABS_CALL_LR21:
2744 case R_HPPA_ABS_CALL_RR14:
2745 case R_HPPA_ABS_CALL_RR17:
2746
2747 case R_HPPA_PCREL_CALL_11:
2748 case R_HPPA_PCREL_CALL_14:
2749 case R_HPPA_PCREL_CALL_17:
2750 case R_HPPA_PCREL_CALL_L21:
2751 case R_HPPA_PCREL_CALL_R11:
2752 case R_HPPA_PCREL_CALL_R14:
2753 case R_HPPA_PCREL_CALL_R17:
2754 case R_HPPA_PCREL_CALL_LS21:
2755 case R_HPPA_PCREL_CALL_RS11:
2756 case R_HPPA_PCREL_CALL_RS14:
2757 case R_HPPA_PCREL_CALL_RS17:
2758 case R_HPPA_PCREL_CALL_LD21:
2759 case R_HPPA_PCREL_CALL_RD11:
2760 case R_HPPA_PCREL_CALL_RD14:
2761 case R_HPPA_PCREL_CALL_RD17:
2762 case R_HPPA_PCREL_CALL_LR21:
2763 case R_HPPA_PCREL_CALL_RR14:
2764 case R_HPPA_PCREL_CALL_RR17:
8f78d0e9
KR		 2765 /* The constant is stored in the instruction. */
2766 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
025b0302
ME		 2767 break;
2768 default:
2769 reloc->addend = fixp->fx_addnumber;
2770 break;
2771 }
2772 break;
2773 }
62f0841b 2774#else /* OBJ_SOM */
025b0302 2775
4165dcc2
JL		 2776 /* Walk over reach relocation returned by the BFD backend. */
2777 for (i = 0; i < n_relocs; i++)
62f0841b 2778 {
4165dcc2 2779 code = *codes[i];
c5e9ccd0 2780
4165dcc2
JL		 2781 relocs[i]->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2782 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
2783 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
025b0302 2784
62f0841b
JL		 2785 switch (code)
2786 {
2787 case R_PCREL_CALL:
2788 case R_ABS_CALL:
4165dcc2 2789 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
62f0841b 2790 break;
f2eed884
JL		 2791
2792 case R_DATA_PLABEL:
2793 case R_CODE_PLABEL:
2794 /* For plabel relocations, the addend of the
2795 relocation should be either 0 (no static link) or 2
2796 (static link required).
2797
2798 FIXME: We always assume no static link! */
4165dcc2
JL		 2799 relocs[i]->addend = 0;
2800 break;
2801
2802 case R_N_MODE:
2803 case R_S_MODE:
2804 case R_D_MODE:
2805 case R_R_MODE:
6868afe6
KR		 2806 case R_EXIT:
2807 case R_FSEL:
2808 case R_LSEL:
2809 case R_RSEL:
4165dcc2 2810 /* There is no symbol or addend associated with these fixups. */
fca59f9d 2811 relocs[i]->sym_ptr_ptr = &dummy_symbol->bsym;
4165dcc2 2812 relocs[i]->addend = 0;
f2eed884
JL		 2813 break;
2814
62f0841b 2815 default:
4165dcc2 2816 relocs[i]->addend = fixp->fx_addnumber;
62f0841b
JL		 2817 break;
2818 }
62f0841b 2819 }
025b0302
ME		 2820#endif
2821
62f0841b
JL		 2822 return relocs;
2823}
2824
8f78d0e9
KR		 2825/* Process any machine dependent frag types. */
2826
025b0302
ME		 2827void
2828md_convert_frag (abfd, sec, fragP)
2829 register bfd *abfd;
2830 register asection *sec;
2831 register fragS *fragP;
2832{
2833 unsigned int address;
2834
2835 if (fragP->fr_type == rs_machine_dependent)
2836 {
2837 switch ((int) fragP->fr_subtype)
2838 {
2839 case 0:
2840 fragP->fr_type = rs_fill;
2841 know (fragP->fr_var == 1);
2842 know (fragP->fr_next);
2843 address = fragP->fr_address + fragP->fr_fix;
2844 if (address % fragP->fr_offset)
2845 {
2846 fragP->fr_offset =
2847 fragP->fr_next->fr_address
2848 - fragP->fr_address
2849 - fragP->fr_fix;
2850 }
2851 else
2852 fragP->fr_offset = 0;
2853 break;
2854 }
8f78d0e9
KR		 2855 }
2856}
025b0302 2857
8f78d0e9 2858/* Round up a section size to the appropriate boundary. */
025b0302 2859
8f78d0e9
KR		 2860valueT
2861md_section_align (segment, size)
2862 asection *segment;
2863 valueT size;
025b0302 2864{
8f78d0e9
KR		 2865 int align = bfd_get_section_alignment (stdoutput, segment);
2866 int align2 = (1 << align) - 1;
025b0302 2867
8f78d0e9 2868 return (size + align2) & ~align2;
8f78d0e9 2869}
025b0302 2870
8f78d0e9
KR		 2871/* Create a short jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2872void
2873md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
2874 char *ptr;
2875 addressT from_addr, to_addr;
2876 fragS *frag;
2877 symbolS *to_symbol;
2878{
2879 fprintf (stderr, "pa_create_short_jmp\n");
2880 abort ();
2881}
025b0302 2882
8f78d0e9
KR		 2883/* Create a long jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2884void
2885md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
2886 char *ptr;
2887 addressT from_addr, to_addr;
2888 fragS *frag;
2889 symbolS *to_symbol;
2890{
2891 fprintf (stderr, "pa_create_long_jump\n");
2892 abort ();
025b0302
ME		 2893}
2894
8f78d0e9
KR		 2895/* Return the approximate size of a frag before relaxation has occurred. */
2896int
2897md_estimate_size_before_relax (fragP, segment)
2898 register fragS *fragP;
2899 asection *segment;
025b0302 2900{
8f78d0e9
KR		 2901 int size;
2902
2903 size = 0;
2904
2905 while ((fragP->fr_fix + size) % fragP->fr_offset)
2906 size++;
2907
2908 return size;
025b0302
ME		 2909}
2910
c5e9ccd0 2911/* Parse machine dependent options. There are none on the PA. */
8f78d0e9
KR		 2912int
2913md_parse_option (argP, cntP, vecP)
2914 char **argP;
2915 int *cntP;
2916 char ***vecP;
025b0302 2917{
8f78d0e9
KR		 2918 return 1;
2919}
025b0302 2920
8f78d0e9
KR		 2921/* We have no need to default values of symbols. */
2922
2923symbolS *
2924md_undefined_symbol (name)
2925 char *name;
2926{
2927 return 0;
025b0302
ME		 2928}
2929
8f78d0e9
KR		 2930/* Parse an operand that is machine-specific.
2931 We just return without modifying the expression as we have nothing
2932 to do on the PA. */
2933
2934void
2935md_operand (expressionP)
2936 expressionS *expressionP;
025b0302 2937{
8f78d0e9 2938}
025b0302 2939
753dcbbd 2940/* Apply a fixup to an instruction. */
8f78d0e9 2941
753dcbbd
JL		 2942int
2943md_apply_fix (fixP, valp)
8f78d0e9 2944 fixS *fixP;
753dcbbd 2945 valueT *valp;
025b0302 2946{
8f78d0e9 2947 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
aa8b30ed 2948 struct hppa_fix_struct *hppa_fixP = fixP->tc_fix_data;
8f78d0e9
KR		 2949 long new_val, result;
2950 unsigned int w1, w2, w;
753dcbbd 2951 valueT val = *valp;
8f78d0e9 2952
ff852e11 2953 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
753dcbbd 2954 never be "applied" (they are just markers). */
ff852e11
JL		 2955#ifdef OBJ_SOM
2956 if (fixP->fx_r_type == R_HPPA_ENTRY
2957 || fixP->fx_r_type == R_HPPA_EXIT)
753dcbbd 2958 return 1;
ff852e11
JL		 2959#endif
2960
8f78d0e9
KR		 2961 /* There should have been an HPPA specific fixup associated
2962 with the GAS fixup. */
2963 if (hppa_fixP)
2964 {
2965 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
aa8b30ed 2966 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
8f78d0e9 2967
aa8b30ed
JL		 2968 if (fixP->fx_r_type == R_HPPA_NONE)
2969 fmt = 0;
8f78d0e9
KR		 2970
2971 /* Remember this value for emit_reloc. FIXME, is this braindamage
c5e9ccd0 2972 documented anywhere!?! */
8f78d0e9
KR		 2973 fixP->fx_addnumber = val;
2974
2975 /* Check if this is an undefined symbol. No relocation can
fca59f9d
JL		 2976 possibly be performed in this case.
2977
2978 Also avoid doing anything for pc-relative fixups in which the
2979 fixup is in a different space than the symbol it references. */
8f78d0e9
KR		 2980 if ((fixP->fx_addsy && fixP->fx_addsy->bsym->section == &bfd_und_section)
2981 || (fixP->fx_subsy
fca59f9d 2982 && fixP->fx_subsy->bsym->section == &bfd_und_section)
86066d06
JL		 2983 || (fixP->fx_pcrel
2984 && fixP->fx_addsy
fca59f9d 2985 && S_GET_SEGMENT (fixP->fx_addsy) != hppa_fixP->segment)
86066d06
JL		 2986 || (fixP->fx_pcrel
2987 && fixP->fx_subsy
fca59f9d 2988 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
753dcbbd 2989 return 1;
8f78d0e9 2990
753dcbbd 2991 /* PLABEL field selectors should not be passed to hppa_field_adjust. */
f2eed884
JL		 2992 if (fmt != 0 && hppa_fixP->fx_r_field != R_HPPA_PSEL
2993 && hppa_fixP->fx_r_field != R_HPPA_LPSEL
9d5a9b20
JL		 2994 && hppa_fixP->fx_r_field != R_HPPA_RPSEL
2995 && hppa_fixP->fx_r_field != R_HPPA_TSEL
2996 && hppa_fixP->fx_r_field != R_HPPA_LTSEL
2997 && hppa_fixP->fx_r_field != R_HPPA_RTSEL)
48153d49
JL		 2998 new_val = hppa_field_adjust (val, 0, hppa_fixP->fx_r_field);
2999 else
3000 new_val = 0;
3001
8f78d0e9
KR		 3002 switch (fmt)
3003 {
3004 /* Handle all opcodes with the 'j' operand type. */
3005 case 14:
48153d49 3006 CHECK_FIELD (new_val, 8191, -8192, 0);
8f78d0e9
KR		 3007
3008 /* Mask off 14 bits to be changed. */
3009 bfd_put_32 (stdoutput,
3010 bfd_get_32 (stdoutput, buf) & 0xffffc000,
3011 buf);
3012 low_sign_unext (new_val, 14, &result);
3013 break;
3014
3015 /* Handle all opcodes with the 'k' operand type. */
3016 case 21:
48153d49 3017 CHECK_FIELD (new_val, 2097152, 0, 0);
8f78d0e9
KR		 3018
3019 /* Mask off 21 bits to be changed. */
3020 bfd_put_32 (stdoutput,
3021 bfd_get_32 (stdoutput, buf) & 0xffe00000,
3022 buf);
3023 dis_assemble_21 (new_val, &result);
3024 break;
3025
3026 /* Handle all the opcodes with the 'i' operand type. */
3027 case 11:
48153d49 3028 CHECK_FIELD (new_val, 1023, -1023, 0);
8f78d0e9
KR		 3029
3030 /* Mask off 11 bits to be changed. */
3031 bfd_put_32 (stdoutput,
3032 bfd_get_32 (stdoutput, buf) & 0xffff800,
3033 buf);
3034 low_sign_unext (new_val, 11, &result);
3035 break;
3036
3037 /* Handle all the opcodes with the 'w' operand type. */
3038 case 12:
48153d49 3039 CHECK_FIELD (new_val, 8191, -8192, 0)
8f78d0e9
KR		 3040
3041 /* Mask off 11 bits to be changed. */
c5e9ccd0 3042 sign_unext ((new_val - 8) >> 2, 12, &result);
8f78d0e9
KR		 3043 bfd_put_32 (stdoutput,
3044 bfd_get_32 (stdoutput, buf) & 0xffffe002,
3045 buf);
3046
3047 dis_assemble_12 (result, &w1, &w);
3048 result = ((w1 << 2) | w);
8f78d0e9
KR		 3049 break;
3050
753dcbbd
JL		 3051 /* Handle some of the opcodes with the 'W' operand type. */
3052 case 17:
3053
8f78d0e9
KR		 3054#define stub_needed(CALLER, CALLEE) \
3055 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
753dcbbd
JL		 3056 /* It is necessary to force PC-relative calls/jumps to have a
3057 relocation entry if they're going to need either a argument
3058 relocation or long call stub. FIXME. Can't we need the same
3059 for absolute calls? */
3060 if (fixP->fx_addsy
3061 && (stub_needed (((obj_symbol_type *)
3062 fixP->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
3063 hppa_fixP->fx_arg_reloc)))
3064 return 1;
3065#undef stub_needed
8f78d0e9 3066
48153d49 3067 CHECK_FIELD (new_val, 262143, -262144, 0);
8f78d0e9
KR		 3068
3069 /* Mask off 17 bits to be changed. */
3070 bfd_put_32 (stdoutput,
3071 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
3072 buf);
3073 sign_unext ((new_val - 8) >> 2, 17, &result);
3074 dis_assemble_17 (result, &w1, &w2, &w);
3075 result = ((w2 << 2) | (w1 << 16) | w);
8f78d0e9
KR		 3076 break;
3077
8f78d0e9 3078 case 32:
aa8b30ed 3079#ifdef OBJ_ELF
ff852e11
JL		 3080 /* These are ELF specific relocations. ELF unfortunately
3081 handles unwinds in a completely different manner. */
8f78d0e9
KR		 3082 if (hppa_fixP->fx_r_type == R_HPPA_UNWIND_ENTRY
3083 || hppa_fixP->fx_r_type == R_HPPA_UNWIND_ENTRIES)
3084 result = fixP->fx_addnumber;
3085 else
aa8b30ed 3086#endif
8f78d0e9
KR		 3087 {
3088 result = 0;
3089 fixP->fx_addnumber = fixP->fx_offset;
551d2fd4
JL		 3090 /* If we have a real relocation, then we want zero to
3091 be stored in the object file. If no relocation is going
3092 to be emitted, then we need to store new_val into the
3093 object file. */
3094 if (fixP->fx_addsy)
3095 bfd_put_32 (stdoutput, 0, buf);
3096 else
3097 bfd_put_32 (stdoutput, new_val, buf);
753dcbbd 3098 return 1;
8f78d0e9
KR		 3099 }
3100 break;
3101
3102 case 0:
753dcbbd 3103 return 1;
8f78d0e9
KR		 3104
3105 default:
48153d49 3106 as_bad ("Unknown relocation encountered in md_apply_fix.");
753dcbbd 3107 return 1;
8f78d0e9
KR		 3108 }
3109
3110 /* Insert the relocation. */
48153d49 3111 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
753dcbbd 3112 return 1;
8f78d0e9 3113 }
025b0302 3114 else
753dcbbd
JL		 3115 {
3116 printf ("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n",
3117 (unsigned int) fixP, fixP->fx_r_type);
3118 return 0;
3119 }
8f78d0e9
KR		 3120}
3121
3122/* Exactly what point is a PC-relative offset relative TO?
3123 On the PA, they're relative to the address of the offset. */
3124
3125long
3126md_pcrel_from (fixP)
3127 fixS *fixP;
3128{
3129 return fixP->fx_where + fixP->fx_frag->fr_address;
3130}
3131
3132/* Return nonzero if the input line pointer is at the end of
3133 a statement. */
3134
3135static int
3136is_end_of_statement ()
3137{
3138 return ((*input_line_pointer == '\n')
3139 || (*input_line_pointer == ';')
3140 || (*input_line_pointer == '!'));
3141}
3142
3143/* Read a number from S. The number might come in one of many forms,
3144 the most common will be a hex or decimal constant, but it could be
3145 a pre-defined register (Yuk!), or an absolute symbol.
3146
3147 Return a number or -1 for failure.
3148
3149 When parsing PA-89 FP register numbers RESULT will be
3150 the address of a structure to return information about
3151 L/R half of FP registers, store results there as appropriate.
3152
3153 pa_parse_number can not handle negative constants and will fail
3154 horribly if it is passed such a constant. */
3155
3156static int
3157pa_parse_number (s, result)
025b0302
ME		 3158 char **s;
3159 struct pa_89_fp_reg_struct *result;
3160{
3161 int num;
3162 char *name;
3163 char c;
3164 symbolS *sym;
3165 int status;
3166 char *p = *s;
3167
8f78d0e9 3168 /* Skip whitespace before the number. */
025b0302
ME		 3169 while (*p == ' ' || *p == '\t')
3170 p = p + 1;
8f78d0e9
KR		 3171
3172 /* Store info in RESULT if requested by caller. */
3173 if (result)
3174 {
3175 result->number_part = -1;
3176 result->l_r_select = -1;
3177 }
3178 num = -1;
025b0302
ME		 3179
3180 if (isdigit (*p))
3181 {
8f78d0e9
KR		 3182 /* Looks like a number. */
3183 num = 0;
025b0302
ME		 3184
3185 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
8f78d0e9
KR		 3186 {
3187 /* The number is specified in hex. */
3188 p += 2;
025b0302
ME		 3189 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
3190 || ((*p >= 'A') && (*p <= 'F')))
3191 {
3192 if (isdigit (*p))
3193 num = num * 16 + *p - '0';
3194 else if (*p >= 'a' && *p <= 'f')
3195 num = num * 16 + *p - 'a' + 10;
3196 else
3197 num = num * 16 + *p - 'A' + 10;
3198 ++p;
3199 }
3200 }
3201 else
3202 {
8f78d0e9 3203 /* The number is specified in decimal. */
025b0302
ME		 3204 while (isdigit (*p))
3205 {
3206 num = num * 10 + *p - '0';
3207 ++p;
3208 }
3209 }
3210
8f78d0e9
KR		 3211 /* Store info in RESULT if requested by the caller. */
3212 if (result)
025b0302 3213 {
8f78d0e9 3214 result->number_part = num;
025b0302 3215
8f78d0e9
KR		 3216 if (IS_R_SELECT (p))
3217 {
3218 result->l_r_select = 1;
3219 ++p;
3220 }
3221 else if (IS_L_SELECT (p))
3222 {
3223 result->l_r_select = 0;
3224 ++p;
3225 }
3226 else
3227 result->l_r_select = 0;
3228 }
025b0302
ME		 3229 }
3230 else if (*p == '%')
8f78d0e9
KR		 3231 {
3232 /* The number might be a predefined register. */
025b0302
ME		 3233 num = 0;
3234 name = p;
3235 p++;
3236 c = *p;
8f78d0e9
KR		 3237 /* Tege hack: Special case for general registers as the general
3238 code makes a binary search with case translation, and is VERY
3239 slow. */
025b0302
ME		 3240 if (c == 'r')
3241 {
3242 p++;
8f78d0e9
KR		 3243 if (*p == 'e' && *(p + 1) == 't'
3244 && (*(p + 2) == '0' || *(p + 2) == '1'))
025b0302
ME		 3245 {
3246 p += 2;
8f78d0e9 3247 num = *p - '0' + 28;
025b0302
ME		 3248 p++;
3249 }
d6e524f3
JL		 3250 else if (*p == 'p')
3251 {
3252 num = 2;
3253 p++;
3254 }
025b0302 3255 else if (!isdigit (*p))
d6e524f3
JL		 3256 {
3257 if (print_errors)
3258 as_bad ("Undefined register: '%s'.", name);
3259 num = -1;
3260 }
025b0302
ME		 3261 else
3262 {
3263 do
3264 num = num * 10 + *p++ - '0';
3265 while (isdigit (*p));
3266 }
3267 }
3268 else
3269 {
8f78d0e9 3270 /* Do a normal register search. */
025b0302
ME		 3271 while (is_part_of_name (c))
3272 {
3273 p = p + 1;
3274 c = *p;
3275 }
3276 *p = 0;
3277 status = reg_name_search (name);
3278 if (status >= 0)
3279 num = status;
3280 else
3281 {
3282 if (print_errors)
d6e524f3
JL		 3283 as_bad ("Undefined register: '%s'.", name);
3284 num = -1;
025b0302
ME		 3285 }
3286 *p = c;
3287 }
3288
8f78d0e9
KR		 3289 /* Store info in RESULT if requested by caller. */
3290 if (result)
3291 {
3292 result->number_part = num;
3293 if (IS_R_SELECT (p - 1))
3294 result->l_r_select = 1;
3295 else if (IS_L_SELECT (p - 1))
3296 result->l_r_select = 0;
3297 else
3298 result->l_r_select = 0;
3299 }
025b0302
ME		 3300 }
3301 else
3302 {
8f78d0e9
KR		 3303 /* And finally, it could be a symbol in the absolute section which
3304 is effectively a constant. */
025b0302
ME		 3305 num = 0;
3306 name = p;
3307 c = *p;
3308 while (is_part_of_name (c))
3309 {
3310 p = p + 1;
3311 c = *p;
3312 }
3313 *p = 0;
3314 if ((sym = symbol_find (name)) != NULL)
3315 {
025b0302 3316 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
8f78d0e9 3317 num = S_GET_VALUE (sym);
025b0302
ME		 3318 else
3319 {
3320 if (print_errors)
d6e524f3
JL		 3321 as_bad ("Non-absolute symbol: '%s'.", name);
3322 num = -1;
025b0302
ME		 3323 }
3324 }
3325 else
3326 {
d6e524f3
JL		 3327 /* There is where we'd come for an undefined symbol
3328 or for an empty string. For an empty string we
3329 will return zero. That's a concession made for
3330 compatability with the braindamaged HP assemblers. */
1cc248d2 3331 if (*name == 0)
d6e524f3 3332 num = 0;
025b0302 3333 else
d6e524f3
JL		 3334 {
3335 if (print_errors)
3336 as_bad ("Undefined absolute constant: '%s'.", name);
3337 num = -1;
3338 }
025b0302
ME		 3339 }
3340 *p = c;
025b0302 3341
8f78d0e9
KR		 3342 /* Store info in RESULT if requested by caller. */
3343 if (result)
3344 {
3345 result->number_part = num;
3346 if (IS_R_SELECT (p - 1))
3347 result->l_r_select = 1;
3348 else if (IS_L_SELECT (p - 1))
3349 result->l_r_select = 0;
3350 else
3351 result->l_r_select = 0;
3352 }
025b0302
ME		 3353 }
3354
3355 *s = p;
3356 return num;
8f78d0e9
KR		 3357}
3358
3359#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3360
3361/* Given NAME, find the register number associated with that name, return
3362 the integer value associated with the given name or -1 on failure. */
3363
3364static int
3365reg_name_search (name)
3366 char *name;
3367{
3368 int middle, low, high;
4047ff1d 3369 int cmp;
8f78d0e9
KR		 3370
3371 low = 0;
3372 high = REG_NAME_CNT - 1;
3373
3374 do
3375 {
3376 middle = (low + high) / 2;
4047ff1d
JL		 3377 cmp = strcasecmp (name, pre_defined_registers[middle].name);
3378 if (cmp < 0)
8f78d0e9 3379 high = middle - 1;
4047ff1d 3380 else if (cmp > 0)
8f78d0e9 3381 low = middle + 1;
4047ff1d
JL		 3382 else
3383 return pre_defined_registers[middle].value;
8f78d0e9 3384 }
4047ff1d 3385 while (low <= high);
8f78d0e9 3386
4047ff1d 3387 return -1;
8f78d0e9
KR		 3388}
3389
3390
3391/* Return nonzero if the given INSN and L/R information will require
3392 a new PA-89 opcode. */
025b0302 3393
8f78d0e9
KR		 3394static int
3395need_89_opcode (insn, result)
3396 struct pa_it *insn;
3397 struct pa_89_fp_reg_struct *result;
3398{
3399 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
3400 return TRUE;
3401 else
3402 return FALSE;
025b0302
ME		 3403}
3404
8f78d0e9
KR		 3405/* Parse a condition for a fcmp instruction. Return the numerical
3406 code associated with the condition. */
c5e9ccd0 3407
8f78d0e9 3408static int
025b0302
ME		 3409pa_parse_fp_cmp_cond (s)
3410 char **s;
3411{
3412 int cond, i;
025b0302
ME		 3413
3414 cond = 0;
3415
3416 for (i = 0; i < 32; i++)
3417 {
8f78d0e9
KR		 3418 if (strncasecmp (*s, fp_cond_map[i].string,
3419 strlen (fp_cond_map[i].string)) == 0)
025b0302 3420 {
8f78d0e9
KR		 3421 cond = fp_cond_map[i].cond;
3422 *s += strlen (fp_cond_map[i].string);
025b0302
ME		 3423 while (**s == ' ' || **s == '\t')
3424 *s = *s + 1;
3425 return cond;
3426 }
3427 }
3428
8f78d0e9 3429 as_bad ("Invalid FP Compare Condition: %c", **s);
025b0302
ME		 3430 return 0;
3431}
3432
8f78d0e9
KR		 3433/* Parse an FP operand format completer returning the completer
3434 type. */
c5e9ccd0 3435
8f78d0e9 3436static fp_operand_format
025b0302
ME		 3437pa_parse_fp_format (s)
3438 char **s;
3439{
8f78d0e9 3440 int format;
025b0302 3441
8f78d0e9 3442 format = SGL;
025b0302
ME		 3443 if (**s == ',')
3444 {
3445 *s += 1;
3446 if (strncasecmp (*s, "sgl", 3) == 0)
3447 {
8f78d0e9 3448 format = SGL;
025b0302
ME		 3449 *s += 4;
3450 }
3451 else if (strncasecmp (*s, "dbl", 3) == 0)
3452 {
8f78d0e9 3453 format = DBL;
025b0302
ME		 3454 *s += 4;
3455 }
3456 else if (strncasecmp (*s, "quad", 4) == 0)
3457 {
8f78d0e9 3458 format = QUAD;
025b0302
ME		 3459 *s += 5;
3460 }
3461 else
3462 {
8f78d0e9
KR		 3463 format = ILLEGAL_FMT;
3464 as_bad ("Invalid FP Operand Format: %3s", *s);
025b0302
ME		 3465 }
3466 }
025b0302 3467
8f78d0e9 3468 return format;
025b0302
ME		 3469}
3470
8f78d0e9
KR		 3471/* Convert from a selector string into a selector type. */
3472
3473static int
025b0302
ME		 3474pa_chk_field_selector (str)
3475 char **str;
3476{
4047ff1d
JL		 3477 int middle, low, high;
3478 int cmp;
3479 char name[3];
025b0302 3480
8f78d0e9 3481 /* Read past any whitespace. */
4047ff1d 3482 /* FIXME: should we read past newlines and formfeeds??? */
025b0302 3483 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
8f78d0e9
KR		 3484 *str = *str + 1;
3485
4047ff1d
JL		 3486 if ((*str)[1] == '\'' || (*str)[1] == '%')
3487 name[0] = tolower ((*str)[0]),
3488 name[1] = 0;
3489 else if ((*str)[2] == '\'' || (*str)[2] == '%')
3490 name[0] = tolower ((*str)[0]),
3491 name[1] = tolower ((*str)[1]),
3492 name[2] = 0;
3493 else
3494 return e_fsel;
3495
3496 low = 0;
3497 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
3498
3499 do
025b0302 3500 {
4047ff1d
JL		 3501 middle = (low + high) / 2;
3502 cmp = strcmp (name, selector_table[middle].prefix);
3503 if (cmp < 0)
3504 high = middle - 1;
3505 else if (cmp > 0)
3506 low = middle + 1;
3507 else
025b0302 3508 {
4047ff1d
JL		 3509 *str += strlen (name) + 1;
3510 return selector_table[middle].field_selector;
025b0302
ME		 3511 }
3512 }
4047ff1d
JL		 3513 while (low <= high);
3514
3515 return e_fsel;
025b0302
ME		 3516}
3517
c5e9ccd0 3518/* Mark (via expr_end) the end of an expression (I think). FIXME. */
025b0302 3519
8f78d0e9
KR		 3520static int
3521get_expression (str)
025b0302
ME		 3522 char *str;
3523{
3524 char *save_in;
8f78d0e9 3525 asection *seg;
025b0302
ME		 3526
3527 save_in = input_line_pointer;
3528 input_line_pointer = str;
5cf4cd1b
KR		 3529 seg = expression (&the_insn.exp);
3530 if (!(seg == absolute_section
3531 || seg == undefined_section
3532 || SEG_NORMAL (seg)))
025b0302 3533 {
c5e9ccd0 3534 as_warn ("Bad segment in expression.");
025b0302
ME		 3535 expr_end = input_line_pointer;
3536 input_line_pointer = save_in;
3537 return 1;
3538 }
3539 expr_end = input_line_pointer;
3540 input_line_pointer = save_in;
3541 return 0;
3542}
3543
8f78d0e9
KR		 3544/* Mark (via expr_end) the end of an absolute expression. FIXME. */
3545static int
48153d49
JL		 3546pa_get_absolute_expression (insn, strp)
3547 struct pa_it *insn;
3548 char **strp;
025b0302
ME		 3549{
3550 char *save_in;
025b0302 3551
48153d49 3552 insn->field_selector = pa_chk_field_selector (strp);
025b0302 3553 save_in = input_line_pointer;
48153d49
JL		 3554 input_line_pointer = *strp;
3555 expression (&insn->exp);
3556 if (insn->exp.X_op != O_constant)
025b0302 3557 {
48153d49 3558 as_bad ("Bad segment (should be absolute).");
025b0302
ME		 3559 expr_end = input_line_pointer;
3560 input_line_pointer = save_in;
48153d49 3561 return 0;
025b0302
ME		 3562 }
3563 expr_end = input_line_pointer;
3564 input_line_pointer = save_in;
48153d49 3565 return evaluate_absolute (insn);
025b0302
ME		 3566}
3567
8f78d0e9
KR		 3568/* Evaluate an absolute expression EXP which may be modified by
3569 the selector FIELD_SELECTOR. Return the value of the expression. */
3570static int
48153d49
JL		 3571evaluate_absolute (insn)
3572 struct pa_it *insn;
025b0302
ME		 3573{
3574 int value;
f41f3d72 3575 expressionS exp;
48153d49 3576 int field_selector = insn->field_selector;
025b0302 3577
f41f3d72 3578 exp = insn->exp;
025b0302
ME		 3579 value = exp.X_add_number;
3580
025b0302
ME		 3581 switch (field_selector)
3582 {
8f78d0e9
KR		 3583 /* No change. */
3584 case e_fsel:
025b0302
ME		 3585 break;
3586
8f78d0e9
KR		 3587 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3588 case e_lssel:
025b0302
ME		 3589 if (value & 0x00000400)
3590 value += 0x800;
3591 value = (value & 0xfffff800) >> 11;
3592 break;
3593
8f78d0e9
KR		 3594 /* Sign extend from bit 21. */
3595 case e_rssel:
025b0302
ME		 3596 if (value & 0x00000400)
3597 value |= 0xfffff800;
3598 else
3599 value &= 0x7ff;
3600 break;
3601
8f78d0e9
KR		 3602 /* Arithmetic shift right 11 bits. */
3603 case e_lsel:
025b0302
ME		 3604 value = (value & 0xfffff800) >> 11;
3605 break;
3606
8f78d0e9
KR		 3607 /* Set bits 0-20 to zero. */
3608 case e_rsel:
025b0302
ME		 3609 value = value & 0x7ff;
3610 break;
3611
8f78d0e9
KR		 3612 /* Add 0x800 and arithmetic shift right 11 bits. */
3613 case e_ldsel:
025b0302 3614 value += 0x800;
025b0302
ME		 3615 value = (value & 0xfffff800) >> 11;
3616 break;
3617
8f78d0e9
KR		 3618 /* Set bitgs 0-21 to one. */
3619 case e_rdsel:
3620 value |= 0xfffff800;
025b0302
ME		 3621 break;
3622
7b624bf2 3623#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
8f78d0e9 3624 case e_rrsel:
7b624bf2
JL		 3625 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
3626 break;
3627
8f78d0e9 3628 case e_lrsel:
7b624bf2
JL		 3629 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
3630 break;
3631#undef RSEL_ROUND
8f78d0e9 3632
025b0302
ME		 3633 default:
3634 BAD_CASE (field_selector);
3635 break;
3636 }
3637 return value;
3638}
3639
8f78d0e9
KR		 3640/* Given an argument location specification return the associated
3641 argument location number. */
3642
3643static unsigned int
025b0302
ME		 3644pa_build_arg_reloc (type_name)
3645 char *type_name;
3646{
3647
3648 if (strncasecmp (type_name, "no", 2) == 0)
8f78d0e9 3649 return 0;
025b0302 3650 if (strncasecmp (type_name, "gr", 2) == 0)
8f78d0e9 3651 return 1;
025b0302 3652 else if (strncasecmp (type_name, "fr", 2) == 0)
8f78d0e9 3653 return 2;
025b0302 3654 else if (strncasecmp (type_name, "fu", 2) == 0)
8f78d0e9 3655 return 3;
025b0302 3656 else
8f78d0e9 3657 as_bad ("Invalid argument location: %s\n", type_name);
025b0302
ME		 3658
3659 return 0;
3660}
3661
8f78d0e9
KR		 3662/* Encode and return an argument relocation specification for
3663 the given register in the location specified by arg_reloc. */
3664
3665static unsigned int
025b0302
ME		 3666pa_align_arg_reloc (reg, arg_reloc)
3667 unsigned int reg;
3668 unsigned int arg_reloc;
3669{
3670 unsigned int new_reloc;
3671
3672 new_reloc = arg_reloc;
3673 switch (reg)
3674 {
3675 case 0:
3676 new_reloc <<= 8;
3677 break;
3678 case 1:
3679 new_reloc <<= 6;
3680 break;
3681 case 2:
3682 new_reloc <<= 4;
3683 break;
3684 case 3:
3685 new_reloc <<= 2;
3686 break;
3687 default:
8f78d0e9 3688 as_bad ("Invalid argument description: %d", reg);
025b0302
ME		 3689 }
3690
3691 return new_reloc;
3692}
3693
8f78d0e9
KR		 3694/* Parse a PA nullification completer (,n). Return nonzero if the
3695 completer was found; return zero if no completer was found. */
3696
3697static int
025b0302
ME		 3698pa_parse_nullif (s)
3699 char **s;
3700{
3701 int nullif;
3702
3703 nullif = 0;
3704 if (**s == ',')
3705 {
3706 *s = *s + 1;
3707 if (strncasecmp (*s, "n", 1) == 0)
3708 nullif = 1;
3709 else
3710 {
8f78d0e9 3711 as_bad ("Invalid Nullification: (%c)", **s);
025b0302
ME		 3712 nullif = 0;
3713 }
3714 *s = *s + 1;
3715 }
025b0302
ME		 3716
3717 return nullif;
3718}
3719
8f78d0e9
KR		 3720/* Parse a non-negated compare/subtract completer returning the
3721 number (for encoding in instrutions) of the given completer.
3722
3723 ISBRANCH specifies whether or not this is parsing a condition
3724 completer for a branch (vs a nullification completer for a
3725 computational instruction. */
3726
3727static int
5cf4cd1b 3728pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
025b0302 3729 char **s;
5cf4cd1b 3730 int isbranch;
025b0302
ME		 3731{
3732 int cmpltr;
5cf4cd1b 3733 char *name = *s + 1;
025b0302 3734 char c;
5cf4cd1b 3735 char *save_s = *s;
025b0302 3736
5cf4cd1b 3737 cmpltr = 0;
025b0302
ME		 3738 if (**s == ',')
3739 {
3740 *s += 1;
025b0302
ME		 3741 while (**s != ',' && **s != ' ' && **s != '\t')
3742 *s += 1;
3743 c = **s;
3744 **s = 0x00;
3745 if (strcmp (name, "=") == 0)
3746 {
3747 cmpltr = 1;
3748 }
3749 else if (strcmp (name, "<") == 0)
3750 {
3751 cmpltr = 2;
3752 }
3753 else if (strcmp (name, "<=") == 0)
3754 {
3755 cmpltr = 3;
3756 }
3757 else if (strcmp (name, "<<") == 0)
3758 {
3759 cmpltr = 4;
3760 }
3761 else if (strcmp (name, "<<=") == 0)
3762 {
3763 cmpltr = 5;
3764 }
3765 else if (strcasecmp (name, "sv") == 0)
3766 {
3767 cmpltr = 6;
3768 }
3769 else if (strcasecmp (name, "od") == 0)
3770 {
3771 cmpltr = 7;
3772 }
5cf4cd1b 3773 /* If we have something like addb,n then there is no condition
8f78d0e9 3774 completer. */
5cf4cd1b 3775 else if (strcasecmp (name, "n") == 0 && isbranch)
025b0302 3776 {
5cf4cd1b 3777 cmpltr = 0;
025b0302 3778 }
8f78d0e9 3779 else
025b0302 3780 {
5cf4cd1b 3781 cmpltr = -1;
025b0302 3782 }
025b0302
ME		 3783 **s = c;
3784 }
025b0302 3785
5cf4cd1b
KR		 3786 /* Reset pointers if this was really a ,n for a branch instruction. */
3787 if (cmpltr == 0 && *name == 'n' && isbranch)
3788 *s = save_s;
3789
025b0302
ME		 3790 return cmpltr;
3791}
3792
8f78d0e9
KR		 3793/* Parse a negated compare/subtract completer returning the
3794 number (for encoding in instrutions) of the given completer.
3795
3796 ISBRANCH specifies whether or not this is parsing a condition
3797 completer for a branch (vs a nullification completer for a
3798 computational instruction. */
3799
3800static int
5cf4cd1b 3801pa_parse_neg_cmpsub_cmpltr (s, isbranch)
025b0302 3802 char **s;
5cf4cd1b 3803 int isbranch;
025b0302
ME		 3804{
3805 int cmpltr;
5cf4cd1b 3806 char *name = *s + 1;
025b0302 3807 char c;
5cf4cd1b 3808 char *save_s = *s;
025b0302 3809
5cf4cd1b 3810 cmpltr = 0;
025b0302
ME		 3811 if (**s == ',')
3812 {
3813 *s += 1;
025b0302
ME		 3814 while (**s != ',' && **s != ' ' && **s != '\t')
3815 *s += 1;
3816 c = **s;
3817 **s = 0x00;
3818 if (strcasecmp (name, "tr") == 0)
3819 {
3820 cmpltr = 0;
3821 }
3822 else if (strcmp (name, "<>") == 0)
3823 {
3824 cmpltr = 1;
3825 }
3826 else if (strcmp (name, ">=") == 0)
3827 {
3828 cmpltr = 2;
3829 }
3830 else if (strcmp (name, ">") == 0)
3831 {
3832 cmpltr = 3;
3833 }
3834 else if (strcmp (name, ">>=") == 0)
3835 {
3836 cmpltr = 4;
3837 }
3838 else if (strcmp (name, ">>") == 0)
3839 {
3840 cmpltr = 5;
3841 }
3842 else if (strcasecmp (name, "nsv") == 0)
3843 {
3844 cmpltr = 6;
3845 }
3846 else if (strcasecmp (name, "ev") == 0)
3847 {
3848 cmpltr = 7;
3849 }
5cf4cd1b 3850 /* If we have something like addb,n then there is no condition
8f78d0e9 3851 completer. */
5cf4cd1b
KR		 3852 else if (strcasecmp (name, "n") == 0 && isbranch)
3853 {
3854 cmpltr = 0;
3855 }
3856 else
3857 {
3858 cmpltr = -1;
3859 }
025b0302
ME		 3860 **s = c;
3861 }
025b0302 3862
5cf4cd1b
KR		 3863 /* Reset pointers if this was really a ,n for a branch instruction. */
3864 if (cmpltr == 0 && *name == 'n' && isbranch)
3865 *s = save_s;
3866
025b0302
ME		 3867 return cmpltr;
3868}
3869
8f78d0e9
KR		 3870/* Parse a non-negated addition completer returning the number
3871 (for encoding in instrutions) of the given completer.
3872
3873 ISBRANCH specifies whether or not this is parsing a condition
3874 completer for a branch (vs a nullification completer for a
3875 computational instruction. */
3876
3877static int
5cf4cd1b 3878pa_parse_nonneg_add_cmpltr (s, isbranch)
025b0302 3879 char **s;
5cf4cd1b 3880 int isbranch;
025b0302
ME		 3881{
3882 int cmpltr;
5cf4cd1b 3883 char *name = *s + 1;
025b0302 3884 char c;
5cf4cd1b 3885 char *save_s = *s;
025b0302 3886
5cf4cd1b 3887 cmpltr = 0;
025b0302
ME		 3888 if (**s == ',')
3889 {
3890 *s += 1;
025b0302
ME		 3891 while (**s != ',' && **s != ' ' && **s != '\t')
3892 *s += 1;
3893 c = **s;
3894 **s = 0x00;
3895 if (strcmp (name, "=") == 0)
3896 {
3897 cmpltr = 1;
3898 }
3899 else if (strcmp (name, "<") == 0)
3900 {
3901 cmpltr = 2;
3902 }
3903 else if (strcmp (name, "<=") == 0)
3904 {
3905 cmpltr = 3;
3906 }
3907 else if (strcasecmp (name, "nuv") == 0)
3908 {
3909 cmpltr = 4;
3910 }
3911 else if (strcasecmp (name, "znv") == 0)
3912 {
3913 cmpltr = 5;
3914 }
3915 else if (strcasecmp (name, "sv") == 0)
3916 {
3917 cmpltr = 6;
3918 }
3919 else if (strcasecmp (name, "od") == 0)
3920 {
3921 cmpltr = 7;
3922 }
5cf4cd1b 3923 /* If we have something like addb,n then there is no condition
8f78d0e9 3924 completer. */
5cf4cd1b
KR		 3925 else if (strcasecmp (name, "n") == 0 && isbranch)
3926 {
3927 cmpltr = 0;
3928 }
3929 else
3930 {
3931 cmpltr = -1;
3932 }
025b0302
ME		 3933 **s = c;
3934 }
025b0302 3935
5cf4cd1b
KR		 3936 /* Reset pointers if this was really a ,n for a branch instruction. */
3937 if (cmpltr == 0 && *name == 'n' && isbranch)
3938 *s = save_s;
3939
025b0302
ME		 3940 return cmpltr;
3941}
3942
8f78d0e9
KR		 3943/* Parse a negated addition completer returning the number
3944 (for encoding in instrutions) of the given completer.
3945
3946 ISBRANCH specifies whether or not this is parsing a condition
3947 completer for a branch (vs a nullification completer for a
3948 computational instruction. */
3949
3950static int
5cf4cd1b 3951pa_parse_neg_add_cmpltr (s, isbranch)
025b0302 3952 char **s;
5cf4cd1b 3953 int isbranch;
025b0302
ME		 3954{
3955 int cmpltr;
5cf4cd1b 3956 char *name = *s + 1;
025b0302 3957 char c;
5cf4cd1b 3958 char *save_s = *s;
025b0302 3959
5cf4cd1b 3960 cmpltr = 0;
025b0302
ME		 3961 if (**s == ',')
3962 {
3963 *s += 1;
025b0302
ME		 3964 while (**s != ',' && **s != ' ' && **s != '\t')
3965 *s += 1;
3966 c = **s;
3967 **s = 0x00;
3968 if (strcasecmp (name, "tr") == 0)
3969 {
3970 cmpltr = 0;
3971 }
3972 else if (strcmp (name, "<>") == 0)
3973 {
3974 cmpltr = 1;
3975 }
3976 else if (strcmp (name, ">=") == 0)
3977 {
3978 cmpltr = 2;
3979 }
3980 else if (strcmp (name, ">") == 0)
3981 {
3982 cmpltr = 3;
3983 }
4047ff1d 3984 else if (strcasecmp (name, "uv") == 0)
025b0302
ME		 3985 {
3986 cmpltr = 4;
3987 }
4047ff1d 3988 else if (strcasecmp (name, "vnz") == 0)
025b0302
ME		 3989 {
3990 cmpltr = 5;
3991 }
3992 else if (strcasecmp (name, "nsv") == 0)
3993 {
3994 cmpltr = 6;
3995 }
3996 else if (strcasecmp (name, "ev") == 0)
3997 {
3998 cmpltr = 7;
3999 }
5cf4cd1b 4000 /* If we have something like addb,n then there is no condition
8f78d0e9 4001 completer. */
5cf4cd1b
KR		 4002 else if (strcasecmp (name, "n") == 0 && isbranch)
4003 {
4004 cmpltr = 0;
4005 }
4006 else
4007 {
4008 cmpltr = -1;
4009 }
025b0302
ME		 4010 **s = c;
4011 }
025b0302 4012
5cf4cd1b
KR		 4013 /* Reset pointers if this was really a ,n for a branch instruction. */
4014 if (cmpltr == 0 && *name == 'n' && isbranch)
4015 *s = save_s;
4016
025b0302
ME		 4017 return cmpltr;
4018}
4019
8f78d0e9 4020/* Handle a .BLOCK type pseudo-op. */
025b0302 4021
8f78d0e9 4022static void
025b0302
ME		 4023pa_block (z)
4024 int z;
4025{
8f78d0e9
KR		 4026 char *p;
4027 long int temp_fill;
4028 unsigned int temp_size;
4029 int i;
025b0302
ME		 4030
4031 temp_size = get_absolute_expression ();
4032
8f78d0e9
KR		 4033 /* Always fill with zeros, that's what the HP assembler does. */
4034 temp_fill = 0;
025b0302 4035
c5e9ccd0 4036 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
8f78d0e9
KR		 4037 (relax_substateT) 0, (symbolS *) 0, 1, NULL);
4038 bzero (p, temp_size);
025b0302 4039
8f78d0e9 4040 /* Convert 2 bytes at a time. */
025b0302
ME		 4041
4042 for (i = 0; i < temp_size; i += 2)
4043 {
4044 md_number_to_chars (p + i,
8f78d0e9 4045 (valueT) temp_fill,
025b0302
ME		 4046 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
4047 }
4048
4049 pa_undefine_label ();
4050 demand_empty_rest_of_line ();
025b0302
ME		 4051}
4052
8f78d0e9
KR		 4053/* Handle a .CALL pseudo-op. This involves storing away information
4054 about where arguments are to be found so the linker can detect
4055 (and correct) argument location mismatches between caller and callee. */
025b0302 4056
8f78d0e9
KR		 4057static void
4058pa_call (unused)
4059 int unused;
4060{
025b0302
ME		 4061 pa_call_args (&last_call_desc);
4062 demand_empty_rest_of_line ();
025b0302
ME		 4063}
4064
8f78d0e9
KR		 4065/* Do the dirty work of building a call descriptor which describes
4066 where the caller placed arguments to a function call. */
4067
4068static void
025b0302 4069pa_call_args (call_desc)
8f78d0e9 4070 struct call_desc *call_desc;
025b0302 4071{
8f78d0e9
KR		 4072 char *name, c, *p;
4073 unsigned int temp, arg_reloc;
025b0302
ME		 4074
4075 while (!is_end_of_statement ())
4076 {
4077 name = input_line_pointer;
4078 c = get_symbol_end ();
8f78d0e9 4079 /* Process a source argument. */
025b0302
ME		 4080 if ((strncasecmp (name, "argw", 4) == 0))
4081 {
4082 temp = atoi (name + 4);
4083 p = input_line_pointer;
4084 *p = c;
4085 input_line_pointer++;
4086 name = input_line_pointer;
4087 c = get_symbol_end ();
4088 arg_reloc = pa_build_arg_reloc (name);
4089 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
4090 }
8f78d0e9 4091 /* Process a return value. */
025b0302
ME		 4092 else if ((strncasecmp (name, "rtnval", 6) == 0))
4093 {
4094 p = input_line_pointer;
4095 *p = c;
4096 input_line_pointer++;
4097 name = input_line_pointer;
4098 c = get_symbol_end ();
4099 arg_reloc = pa_build_arg_reloc (name);
4100 call_desc->arg_reloc |= (arg_reloc & 0x3);
4101 }
4102 else
4103 {
8f78d0e9 4104 as_bad ("Invalid .CALL argument: %s", name);
025b0302
ME		 4105 }
4106 p = input_line_pointer;
4107 *p = c;
4108 if (!is_end_of_statement ())
4109 input_line_pointer++;
4110 }
4111}
4112
8f78d0e9
KR		 4113/* Return TRUE if FRAG1 and FRAG2 are the same. */
4114
025b0302 4115static int
8f78d0e9
KR		 4116is_same_frag (frag1, frag2)
4117 fragS *frag1;
4118 fragS *frag2;
025b0302
ME		 4119{
4120
8f78d0e9 4121 if (frag1 == NULL)
025b0302 4122 return (FALSE);
8f78d0e9 4123 else if (frag2 == NULL)
025b0302 4124 return (FALSE);
8f78d0e9 4125 else if (frag1 == frag2)
025b0302 4126 return (TRUE);
8f78d0e9
KR		 4127 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
4128 return (is_same_frag (frag1, frag2->fr_next));
025b0302
ME		 4129 else
4130 return (FALSE);
4131}
4132
ff852e11
JL		 4133#ifdef OBJ_ELF
4134/* Build an entry in the UNWIND subspace from the given function
4135 attributes in CALL_INFO. This is not needed for SOM as using
4136 R_ENTRY and R_EXIT relocations allow the linker to handle building
4137 of the unwind spaces. */
c5e9ccd0 4138
025b0302
ME		 4139static void
4140pa_build_unwind_subspace (call_info)
8f78d0e9 4141 struct call_info *call_info;
025b0302 4142{
8f78d0e9
KR		 4143 char *unwind;
4144 asection *seg, *save_seg;
025b0302
ME		 4145 subsegT subseg, save_subseg;
4146 int i;
8f78d0e9
KR		 4147 char c, *p;
4148
4149 /* Get into the right seg/subseg. This may involve creating
4150 the seg the first time through. Make sure to have the
4151 old seg/subseg so that we can reset things when we are done. */
4152 subseg = SUBSEG_UNWIND;
4153 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
4154 if (seg == ASEC_NULL)
025b0302 4155 {
8f78d0e9
KR		 4156 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
4157 bfd_set_section_flags (stdoutput, seg,
4158 SEC_READONLY | SEC_HAS_CONTENTS
4159 | SEC_LOAD | SEC_RELOC);
025b0302
ME		 4160 }
4161
025b0302
ME		 4162 save_seg = now_seg;
4163 save_subseg = now_subseg;
80aab579 4164 subseg_set (seg, subseg);
025b0302 4165
8f78d0e9
KR		 4166
4167 /* Get some space to hold relocation information for the unwind
4168 descriptor. */
025b0302 4169 p = frag_more (4);
025b0302 4170
8f78d0e9 4171 /* Relocation info. for start offset of the function. */
8f78d0e9
KR		 4172 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4173 call_info->start_symbol, (offsetT) 0,
4174 (expressionS *) NULL, 0, R_HPPA_UNWIND, e_fsel, 32, 0,
4175 (char *) 0);
025b0302 4176
025b0302 4177 p = frag_more (4);
025b0302 4178
8f78d0e9 4179 /* Relocation info. for end offset of the function. */
8f78d0e9
KR		 4180 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4181 call_info->end_symbol, (offsetT) 0,
4182 (expressionS *) NULL, 0, R_HPPA_UNWIND, e_fsel, 32, 0,
4183 (char *) 0);
025b0302 4184
8f78d0e9
KR		 4185 /* Dump it. */
4186 unwind = (char *) &call_info->ci_unwind;
4187 for (i = 8; i < sizeof (struct unwind_table); i++)
025b0302 4188 {
8f78d0e9 4189 c = *(unwind + i);
025b0302
ME		 4190 {
4191 FRAG_APPEND_1_CHAR (c);
4192 }
4193 }
4194
8f78d0e9 4195 /* Return back to the original segment/subsegment. */
80aab579 4196 subseg_set (save_seg, save_subseg);
025b0302 4197}
ff852e11 4198#endif
025b0302 4199
8f78d0e9
KR		 4200/* Process a .CALLINFO pseudo-op. This information is used later
4201 to build unwind descriptors and maybe one day to support
4202 .ENTER and .LEAVE. */
025b0302 4203
8f78d0e9
KR		 4204static void
4205pa_callinfo (unused)
4206 int unused;
025b0302 4207{
8f78d0e9
KR		 4208 char *name, c, *p;
4209 int temp;
025b0302 4210
8f78d0e9 4211 /* .CALLINFO must appear within a procedure definition. */
025b0302
ME		 4212 if (!within_procedure)
4213 as_bad (".callinfo is not within a procedure definition");
4214
8f78d0e9
KR		 4215 /* Mark the fact that we found the .CALLINFO for the
4216 current procedure. */
025b0302
ME		 4217 callinfo_found = TRUE;
4218
8f78d0e9 4219 /* Iterate over the .CALLINFO arguments. */
025b0302
ME		 4220 while (!is_end_of_statement ())
4221 {
4222 name = input_line_pointer;
4223 c = get_symbol_end ();
8f78d0e9 4224 /* Frame size specification. */
025b0302
ME		 4225 if ((strncasecmp (name, "frame", 5) == 0))
4226 {
4227 p = input_line_pointer;
4228 *p = c;
4229 input_line_pointer++;
4230 temp = get_absolute_expression ();
4231 if ((temp & 0x3) != 0)
4232 {
4233 as_bad ("FRAME parameter must be a multiple of 8: %d\n", temp);
4234 temp = 0;
4235 }
49fc68a1 4236
c5e9ccd0 4237 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
49fc68a1
JL		 4238 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
4239
025b0302 4240 }
8f78d0e9 4241 /* Entry register (GR, GR and SR) specifications. */
025b0302
ME		 4242 else if ((strncasecmp (name, "entry_gr", 8) == 0))
4243 {
4244 p = input_line_pointer;
4245 *p = c;
4246 input_line_pointer++;
4247 temp = get_absolute_expression ();
aa8b30ed
JL		 4248 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4249 even though %r19 is caller saved. I think this is a bug in
4250 the HP assembler, and we are not going to emulate it. */
4251 if (temp < 3 || temp > 18)
4252 as_bad ("Value for ENTRY_GR must be in the range 3..18\n");
4253 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
025b0302
ME		 4254 }
4255 else if ((strncasecmp (name, "entry_fr", 8) == 0))
4256 {
4257 p = input_line_pointer;
4258 *p = c;
4259 input_line_pointer++;
4260 temp = get_absolute_expression ();
aa8b30ed
JL		 4261 /* Similarly the HP assembler takes 31 as the high bound even
4262 though %fr21 is the last callee saved floating point register. */
4263 if (temp < 12 || temp > 21)
4264 as_bad ("Value for ENTRY_FR must be in the range 12..21\n");
4265 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
025b0302
ME		 4266 }
4267 else if ((strncasecmp (name, "entry_sr", 8) == 0))
4268 {
4269 p = input_line_pointer;
4270 *p = c;
4271 input_line_pointer++;
4272 temp = get_absolute_expression ();
aa8b30ed
JL		 4273 if (temp != 3)
4274 as_bad ("Value for ENTRY_SR must be 3\n");
025b0302 4275 }
8f78d0e9 4276 /* Note whether or not this function performs any calls. */
025b0302
ME		 4277 else if ((strncasecmp (name, "calls", 5) == 0) ||
4278 (strncasecmp (name, "caller", 6) == 0))
4279 {
4280 p = input_line_pointer;
4281 *p = c;
025b0302
ME		 4282 }
4283 else if ((strncasecmp (name, "no_calls", 8) == 0))
4284 {
4285 p = input_line_pointer;
4286 *p = c;
025b0302 4287 }
8f78d0e9 4288 /* Should RP be saved into the stack. */
025b0302
ME		 4289 else if ((strncasecmp (name, "save_rp", 7) == 0))
4290 {
4291 p = input_line_pointer;
4292 *p = c;
4293 last_call_info->ci_unwind.descriptor.save_rp = 1;
4294 }
8f78d0e9 4295 /* Likewise for SP. */
025b0302
ME		 4296 else if ((strncasecmp (name, "save_sp", 7) == 0))
4297 {
4298 p = input_line_pointer;
4299 *p = c;
4300 last_call_info->ci_unwind.descriptor.save_sp = 1;
4301 }
8f78d0e9 4302 /* Is this an unwindable procedure. If so mark it so
c5e9ccd0 4303 in the unwind descriptor. */
025b0302
ME		 4304 else if ((strncasecmp (name, "no_unwind", 9) == 0))
4305 {
4306 p = input_line_pointer;
4307 *p = c;
4308 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
4309 }
8f78d0e9 4310 /* Is this an interrupt routine. If so mark it in the
c5e9ccd0 4311 unwind descriptor. */
025b0302
ME		 4312 else if ((strncasecmp (name, "hpux_int", 7) == 0))
4313 {
4314 p = input_line_pointer;
4315 *p = c;
8f78d0e9 4316 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
025b0302
ME		 4317 }
4318 else
4319 {
8f78d0e9 4320 as_bad ("Invalid .CALLINFO argument: %s", name);
025b0302
ME		 4321 }
4322 if (!is_end_of_statement ())
4323 input_line_pointer++;
4324 }
4325
4326 demand_empty_rest_of_line ();
025b0302
ME		 4327}
4328
8f78d0e9
KR		 4329/* Switch into the code subspace. */
4330
4331static void
4332pa_code (unused)
4333 int unused;
025b0302 4334{
8f78d0e9 4335 sd_chain_struct *sdchain;
025b0302 4336
8f78d0e9
KR		 4337 /* First time through it might be necessary to create the
4338 $TEXT$ space. */
025b0302
ME		 4339 if ((sdchain = is_defined_space ("$TEXT$")) == NULL)
4340 {
8f78d0e9
KR		 4341 sdchain = create_new_space (pa_def_spaces[0].name,
4342 pa_def_spaces[0].spnum,
4343 pa_def_spaces[0].loadable,
4344 pa_def_spaces[0].defined,
4345 pa_def_spaces[0].private,
4346 pa_def_spaces[0].sort,
4347 pa_def_spaces[0].segment, 0);
025b0302
ME		 4348 }
4349
4350 SPACE_DEFINED (sdchain) = 1;
80aab579 4351 subseg_set (text_section, SUBSEG_CODE);
025b0302 4352 demand_empty_rest_of_line ();
025b0302
ME		 4353}
4354
8f78d0e9
KR		 4355/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4356 the .comm pseudo-op has the following symtax:
025b0302 4357
8f78d0e9
KR		 4358 <label> .comm <length>
4359
4360 where <label> is optional and is a symbol whose address will be the start of
4361 a block of memory <length> bytes long. <length> must be an absolute
4362 expression. <length> bytes will be allocated in the current space
4363 and subspace. */
4364
4365static void
4366pa_comm (unused)
4367 int unused;
025b0302 4368{
8f78d0e9
KR		 4369 unsigned int size;
4370 symbolS *symbol;
4371 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4372
8f78d0e9
KR		 4373 if (label_symbol)
4374 symbol = label_symbol->lss_label;
025b0302 4375 else
8f78d0e9 4376 symbol = NULL;
025b0302
ME		 4377
4378 SKIP_WHITESPACE ();
8f78d0e9 4379 size = get_absolute_expression ();
025b0302 4380
8f78d0e9 4381 if (symbol)
025b0302 4382 {
d56f45f5 4383 /* It is incorrect to check S_IS_DEFINED at this point as
c5e9ccd0
JL		 4384 the symbol will *always* be defined. FIXME. How to
4385 correctly determine when this label really as been
4386 defined before. */
8f78d0e9 4387 if (S_GET_VALUE (symbol))
025b0302 4388 {
8f78d0e9 4389 if (S_GET_VALUE (symbol) != size)
025b0302 4390 {
8f78d0e9
KR		 4391 as_warn ("Length of .comm \"%s\" is already %d. Not changed.",
4392 S_GET_NAME (symbol), S_GET_VALUE (symbol));
025b0302
ME		 4393 return;
4394 }
4395 }
4396 else
4397 {
8f78d0e9 4398 S_SET_VALUE (symbol, size);
aa8b30ed 4399 S_SET_SEGMENT (symbol, &bfd_und_section);
8f78d0e9 4400 S_SET_EXTERNAL (symbol);
025b0302 4401 }
025b0302 4402 }
025b0302
ME		 4403 demand_empty_rest_of_line ();
4404}
4405
8f78d0e9 4406/* Process a .END pseudo-op. */
025b0302 4407
8f78d0e9
KR		 4408static void
4409pa_end (unused)
4410 int unused;
4411{
025b0302 4412 demand_empty_rest_of_line ();
025b0302
ME		 4413}
4414
c5e9ccd0 4415/* Process a .ENTER pseudo-op. This is not supported. */
8f78d0e9
KR		 4416static void
4417pa_enter (unused)
4418 int unused;
025b0302 4419{
c5e9ccd0 4420 abort ();
025b0302
ME		 4421}
4422
8f78d0e9
KR		 4423/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4424 procesure. */
4425static void
4426pa_entry (unused)
4427 int unused;
025b0302 4428{
025b0302
ME		 4429 if (!within_procedure)
4430 as_bad ("Misplaced .entry. Ignored.");
4431 else
4432 {
4433 if (!callinfo_found)
4434 as_bad ("Missing .callinfo.");
025b0302
ME		 4435 }
4436 demand_empty_rest_of_line ();
4437 within_entry_exit = TRUE;
8f78d0e9 4438
ff852e11
JL		 4439#ifdef OBJ_SOM
4440 /* SOM defers building of unwind descriptors until the link phase.
4441 The assembler is responsible for creating an R_ENTRY relocation
4442 to mark the beginning of a region and hold the unwind bits, and
4443 for creating an R_EXIT relocation to mark the end of the region.
4444
4445 FIXME. ELF should be using the same conventions! The problem
4446 is an unwind requires too much relocation space. Hmmm. Maybe
4447 if we split the unwind bits up between the relocations which
4448 denote the entry and exit points. */
86066d06
JL		 4449 if (last_call_info->start_symbol != NULL)
4450 {
4451 char *where = frag_more (0);
c5e9ccd0 4452
86066d06
JL		 4453 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4454 last_call_info->start_symbol, (offsetT) 0, NULL,
4455 0, R_HPPA_ENTRY, e_fsel, 0, 0,
4456 (char *) &last_call_info->ci_unwind.descriptor);
4457 }
ff852e11 4458#endif
025b0302
ME		 4459}
4460
8f78d0e9
KR		 4461/* Handle a .EQU pseudo-op. */
4462
4463static void
025b0302
ME		 4464pa_equ (reg)
4465 int reg;
4466{
8f78d0e9
KR		 4467 label_symbol_struct *label_symbol = pa_get_label ();
4468 symbolS *symbol;
025b0302 4469
8f78d0e9 4470 if (label_symbol)
025b0302 4471 {
8f78d0e9
KR		 4472 symbol = label_symbol->lss_label;
4473 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
4474 S_SET_SEGMENT (symbol, &bfd_abs_section);
025b0302
ME		 4475 }
4476 else
4477 {
4478 if (reg)
4479 as_bad (".REG must use a label");
4480 else
4481 as_bad (".EQU must use a label");
4482 }
4483
4484 pa_undefine_label ();
4485 demand_empty_rest_of_line ();
025b0302
ME		 4486}
4487
8f78d0e9
KR		 4488/* Helper function. Does processing for the end of a function. This
4489 usually involves creating some relocations or building special
4490 symbols to mark the end of the function. */
4491
4492static void
025b0302
ME		 4493process_exit ()
4494{
4495 char *where;
4496
4497 where = frag_more (0);
aa8b30ed 4498
ff852e11 4499#ifdef OBJ_ELF
44c0de53
JL		 4500 /* Mark the end of the function, stuff away the location of the frag
4501 for the end of the function, and finally call pa_build_unwind_subspace
4502 to add an entry in the unwind table. */
4503 hppa_elf_mark_end_of_function ();
025b0302 4504 pa_build_unwind_subspace (last_call_info);
ff852e11
JL		 4505#else
4506 /* SOM defers building of unwind descriptors until the link phase.
4507 The assembler is responsible for creating an R_ENTRY relocation
4508 to mark the beginning of a region and hold the unwind bits, and
4509 for creating an R_EXIT relocation to mark the end of the region.
4510
4511 FIXME. ELF should be using the same conventions! The problem
4512 is an unwind requires too much relocation space. Hmmm. Maybe
4513 if we split the unwind bits up between the relocations which
4514 denote the entry and exit points. */
4515 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4516 last_call_info->start_symbol, (offsetT) 0,
4517 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0, NULL);
4518#endif
025b0302
ME		 4519}
4520
8f78d0e9 4521/* Process a .EXIT pseudo-op. */
025b0302 4522
8f78d0e9
KR		 4523static void
4524pa_exit (unused)
4525 int unused;
4526{
025b0302
ME		 4527 if (!within_procedure)
4528 as_bad (".EXIT must appear within a procedure");
4529 else
4530 {
4531 if (!callinfo_found)
4532 as_bad ("Missing .callinfo");
4533 else
4534 {
4535 if (!within_entry_exit)
4536 as_bad ("No .ENTRY for this .EXIT");
4537 else
4538 {
4539 within_entry_exit = FALSE;
4540 process_exit ();
4541 }
4542 }
4543 }
4544 demand_empty_rest_of_line ();
025b0302
ME		 4545}
4546
8f78d0e9
KR		 4547/* Process a .EXPORT directive. This makes functions external
4548 and provides information such as argument relocation entries
4549 to callers. */
5cf4cd1b 4550
8f78d0e9
KR		 4551static void
4552pa_export (unused)
4553 int unused;
025b0302 4554{
8f78d0e9
KR		 4555 char *name, c, *p;
4556 symbolS *symbol;
025b0302
ME		 4557
4558 name = input_line_pointer;
4559 c = get_symbol_end ();
8f78d0e9
KR		 4560 /* Make sure the given symbol exists. */
4561 if ((symbol = symbol_find_or_make (name)) == NULL)
025b0302
ME		 4562 {
4563 as_bad ("Cannot define export symbol: %s\n", name);
4564 p = input_line_pointer;
4565 *p = c;
4566 input_line_pointer++;
4567 }
4568 else
4569 {
8f78d0e9
KR		 4570 /* OK. Set the external bits and process argument relocations. */
4571 S_SET_EXTERNAL (symbol);
025b0302
ME		 4572 p = input_line_pointer;
4573 *p = c;
4574 if (!is_end_of_statement ())
4575 {
4576 input_line_pointer++;
48153d49 4577 pa_type_args (symbol, 1);
5cf4cd1b 4578#ifdef OBJ_ELF
8f78d0e9 4579 pa_build_symextn_section ();
5cf4cd1b 4580#endif
025b0302
ME		 4581 }
4582 }
4583
4584 demand_empty_rest_of_line ();
025b0302
ME		 4585}
4586
8f78d0e9
KR		 4587/* Helper function to process arguments to a .EXPORT pseudo-op. */
4588
4589static void
48153d49 4590pa_type_args (symbolP, is_export)
8f78d0e9 4591 symbolS *symbolP;
48153d49 4592 int is_export;
025b0302 4593{
8f78d0e9
KR		 4594 char *name, c, *p;
4595 unsigned int temp, arg_reloc;
e75acd68 4596 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
8f78d0e9 4597 obj_symbol_type *symbol = (obj_symbol_type *) symbolP->bsym;
025b0302
ME		 4598
4599 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
48153d49 4600
025b0302
ME		 4601 {
4602 input_line_pointer += 8;
9a182533 4603 symbolP->bsym->flags &= ~BSF_FUNCTION;
025b0302 4604 S_SET_SEGMENT (symbolP, &bfd_abs_section);
e75acd68 4605 type = SYMBOL_TYPE_ABSOLUTE;
025b0302
ME		 4606 }
4607 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
9a182533
JL		 4608 {
4609 input_line_pointer += 4;
a721c80b 4610 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
c5e9ccd0 4611 instead one should be IMPORTing/EXPORTing ENTRY types.
a721c80b 4612
c5e9ccd0
JL		 4613 Complain if one tries to EXPORT a CODE type since that's never
4614 done. Both GCC and HP C still try to IMPORT CODE types, so
4615 silently fix them to be ENTRY types. */
a721c80b 4616 if (symbolP->bsym->flags & BSF_FUNCTION)
48153d49 4617 {
a721c80b
JL		 4618 if (is_export)
4619 as_tsktsk ("Using ENTRY rather than CODE in export directive for %s", symbolP->bsym->name);
4620
48153d49
JL		 4621 symbolP->bsym->flags |= BSF_FUNCTION;
4622 type = SYMBOL_TYPE_ENTRY;
4623 }
4624 else
4625 {
4626 symbolP->bsym->flags &= ~BSF_FUNCTION;
4627 type = SYMBOL_TYPE_CODE;
4628 }
9a182533 4629 }
025b0302 4630 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
9a182533
JL		 4631 {
4632 input_line_pointer += 4;
4633 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4634 type = SYMBOL_TYPE_DATA;
9a182533 4635 }
025b0302
ME		 4636 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
4637 {
4638 input_line_pointer += 5;
025b0302 4639 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4640 type = SYMBOL_TYPE_ENTRY;
025b0302
ME		 4641 }
4642 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
4643 {
4644 input_line_pointer += 9;
9a182533 4645 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4646 type = SYMBOL_TYPE_MILLICODE;
025b0302
ME		 4647 }
4648 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
4649 {
4650 input_line_pointer += 6;
9a182533 4651 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4652 type = SYMBOL_TYPE_PLABEL;
025b0302
ME		 4653 }
4654 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
4655 {
4656 input_line_pointer += 8;
9a182533 4657 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4658 type = SYMBOL_TYPE_PRI_PROG;
025b0302
ME		 4659 }
4660 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
4661 {
4662 input_line_pointer += 8;
9a182533 4663 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4664 type = SYMBOL_TYPE_SEC_PROG;
025b0302
ME		 4665 }
4666
e75acd68
JL		 4667 /* SOM requires much more information about symbol types
4668 than BFD understands. This is how we get this information
4669 to the SOM BFD backend. */
4670#ifdef obj_set_symbol_type
4671 obj_set_symbol_type (symbolP->bsym, (int) type);
4672#endif
4673
8f78d0e9
KR		 4674 /* Now that the type of the exported symbol has been handled,
4675 handle any argument relocation information. */
025b0302
ME		 4676 while (!is_end_of_statement ())
4677 {
4678 if (*input_line_pointer == ',')
4679 input_line_pointer++;
4680 name = input_line_pointer;
4681 c = get_symbol_end ();
8f78d0e9 4682 /* Argument sources. */
025b0302
ME		 4683 if ((strncasecmp (name, "argw", 4) == 0))
4684 {
4685 p = input_line_pointer;
4686 *p = c;
4687 input_line_pointer++;
4688 temp = atoi (name + 4);
4689 name = input_line_pointer;
4690 c = get_symbol_end ();
4691 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
8f78d0e9 4692 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4693 *input_line_pointer = c;
4694 }
8f78d0e9 4695 /* The return value. */
025b0302
ME		 4696 else if ((strncasecmp (name, "rtnval", 6)) == 0)
4697 {
4698 p = input_line_pointer;
4699 *p = c;
4700 input_line_pointer++;
4701 name = input_line_pointer;
4702 c = get_symbol_end ();
4703 arg_reloc = pa_build_arg_reloc (name);
8f78d0e9 4704 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4705 *input_line_pointer = c;
4706 }
8f78d0e9 4707 /* Privelege level. */
025b0302
ME		 4708 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
4709 {
4710 p = input_line_pointer;
4711 *p = c;
4712 input_line_pointer++;
025b0302
ME		 4713 temp = atoi (input_line_pointer);
4714 c = get_symbol_end ();
4715 *input_line_pointer = c;
025b0302
ME		 4716 }
4717 else
4718 {
4719 as_bad ("Undefined .EXPORT/.IMPORT argument (ignored): %s", name);
4720 p = input_line_pointer;
4721 *p = c;
4722 }
4723 if (!is_end_of_statement ())
4724 input_line_pointer++;
4725 }
4726}
4727
8f78d0e9
KR		 4728/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
4729 assembly file must either be defined in the assembly file, or
4730 explicitly IMPORTED from another. */
4731
4732static void
4733pa_import (unused)
4734 int unused;
025b0302 4735{
8f78d0e9
KR		 4736 char *name, c, *p;
4737 symbolS *symbol;
025b0302
ME		 4738
4739 name = input_line_pointer;
4740 c = get_symbol_end ();
025b0302 4741
8f78d0e9 4742 symbol = symbol_find_or_make (name);
025b0302
ME		 4743 p = input_line_pointer;
4744 *p = c;
4745
4746 if (!is_end_of_statement ())
4747 {
4748 input_line_pointer++;
48153d49 4749 pa_type_args (symbol, 0);
025b0302
ME		 4750 }
4751 else
4752 {
47f45d66 4753 /* Sigh. To be compatable with the HP assembler and to help
c5e9ccd0
JL		 4754 poorly written assembly code, we assign a type based on
4755 the the current segment. Note only BSF_FUNCTION really
4756 matters, we do not need to set the full SYMBOL_TYPE_* info here. */
47f45d66
JL		 4757 if (now_seg == text_section)
4758 symbol->bsym->flags |= BSF_FUNCTION;
4759
8f78d0e9
KR		 4760 /* If the section is undefined, then the symbol is undefined
4761 Since this is an import, leave the section undefined. */
4762 S_SET_SEGMENT (symbol, &bfd_und_section);
025b0302
ME		 4763 }
4764
025b0302 4765 demand_empty_rest_of_line ();
025b0302
ME		 4766}
4767
8f78d0e9
KR		 4768/* Handle a .LABEL pseudo-op. */
4769
4770static void
4771pa_label (unused)
4772 int unused;
025b0302 4773{
8f78d0e9 4774 char *name, c, *p;
025b0302
ME		 4775
4776 name = input_line_pointer;
4777 c = get_symbol_end ();
025b0302
ME		 4778
4779 if (strlen (name) > 0)
4780 {
4781 colon (name);
4782 p = input_line_pointer;
4783 *p = c;
4784 }
4785 else
4786 {
4787 as_warn ("Missing label name on .LABEL");
4788 }
4789
4790 if (!is_end_of_statement ())
4791 {
4792 as_warn ("extra .LABEL arguments ignored.");
4793 ignore_rest_of_line ();
4794 }
4795 demand_empty_rest_of_line ();
025b0302
ME		 4796}
4797
8f78d0e9 4798/* Handle a .LEAVE pseudo-op. This is not supported yet. */
025b0302 4799
8f78d0e9
KR		 4800static void
4801pa_leave (unused)
4802 int unused;
4803{
c5e9ccd0 4804 abort ();
025b0302
ME		 4805}
4806
8f78d0e9
KR		 4807/* Handle a .ORIGIN pseudo-op. */
4808
4809static void
4810pa_origin (unused)
4811 int unused;
025b0302 4812{
8f78d0e9 4813 s_org (0);
025b0302 4814 pa_undefine_label ();
025b0302
ME		 4815}
4816
8f78d0e9
KR		 4817/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
4818 is for static functions. FIXME. Should share more code with .EXPORT. */
5cf4cd1b 4819
8f78d0e9
KR		 4820static void
4821pa_param (unused)
4822 int unused;
5cf4cd1b 4823{
8f78d0e9
KR		 4824 char *name, c, *p;
4825 symbolS *symbol;
5cf4cd1b
KR		 4826
4827 name = input_line_pointer;
4828 c = get_symbol_end ();
5cf4cd1b 4829
8f78d0e9 4830 if ((symbol = symbol_find_or_make (name)) == NULL)
5cf4cd1b
KR		 4831 {
4832 as_bad ("Cannot define static symbol: %s\n", name);
4833 p = input_line_pointer;
4834 *p = c;
4835 input_line_pointer++;
4836 }
4837 else
4838 {
8f78d0e9 4839 S_CLEAR_EXTERNAL (symbol);
5cf4cd1b
KR		 4840 p = input_line_pointer;
4841 *p = c;
4842 if (!is_end_of_statement ())
4843 {
4844 input_line_pointer++;
48153d49 4845 pa_type_args (symbol, 0);
5cf4cd1b
KR		 4846 }
4847 }
4848
4849 demand_empty_rest_of_line ();
5cf4cd1b
KR		 4850}
4851
8f78d0e9
KR		 4852/* Handle a .PROC pseudo-op. It is used to mark the beginning
4853 of a procedure from a syntatical point of view. */
4854
4855static void
4856pa_proc (unused)
4857 int unused;
025b0302 4858{
8f78d0e9 4859 struct call_info *call_info;
86066d06 4860 segT seg;
025b0302
ME		 4861
4862 if (within_procedure)
4863 as_fatal ("Nested procedures");
4864
8f78d0e9 4865 /* Reset global variables for new procedure. */
025b0302
ME		 4866 callinfo_found = FALSE;
4867 within_procedure = TRUE;
025b0302 4868
2f156c92
JL		 4869#if 0
4870 Enabling this code creates severe problems with GDB. It appears as if
4871 inserting linker stubs between functions within a single .o makes GDB
4872 blow chunks.
4873
86066d06
JL		 4874 /* Create a new CODE subspace for each procedure if we are not
4875 using space/subspace aliases. */
4876 if (!USE_ALIASES && call_info_root != NULL)
4877 {
4878 /* Force creation of a new $CODE$ subspace; inherit attributes from
4879 the first $CODE$ subspace. */
4880 seg = subseg_force_new ("$CODE$", 0);
4881
4882 /* Now set the flags. */
4883 bfd_set_section_flags (stdoutput, seg,
4884 bfd_get_section_flags (abfd, text_section));
4885
4886 /* Record any alignment request for this section. */
4887 record_alignment (seg,
4888 bfd_get_section_alignment (stdoutput, text_section));
4889
4890 /* Change the "text_section" to be our new $CODE$ subspace. */
4891 text_section = seg;
4892 subseg_set (text_section, 0);
4893
4894#ifdef obj_set_subsection_attributes
4895 /* Need a way to inherit the the access bits, sort key and quadrant
4896 from the first $CODE$ subspace. FIXME. */
4897 obj_set_subsection_attributes (seg, current_space->sd_seg, 0x2c, 24, 0);
4898#endif
4899 }
2f156c92 4900#endif
86066d06 4901
8f78d0e9
KR		 4902 /* Create another call_info structure. */
4903 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
025b0302
ME		 4904
4905 if (!call_info)
4906 as_fatal ("Cannot allocate unwind descriptor\n");
4907
8f78d0e9 4908 bzero (call_info, sizeof (struct call_info));
025b0302
ME		 4909
4910 call_info->ci_next = NULL;
4911
4912 if (call_info_root == NULL)
4913 {
4914 call_info_root = call_info;
4915 last_call_info = call_info;
4916 }
4917 else
4918 {
4919 last_call_info->ci_next = call_info;
4920 last_call_info = call_info;
4921 }
4922
4923 /* set up defaults on call_info structure */
4924
4925 call_info->ci_unwind.descriptor.cannot_unwind = 0;
4926 call_info->ci_unwind.descriptor.region_desc = 1;
8f78d0e9 4927 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
025b0302
ME		 4928
4929 /* If we got a .PROC pseudo-op, we know that the function is defined
8f78d0e9 4930 locally. Make sure it gets into the symbol table. */
025b0302 4931 {
8f78d0e9 4932 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4933
8f78d0e9 4934 if (label_symbol)
025b0302 4935 {
8f78d0e9 4936 if (label_symbol->lss_label)
025b0302 4937 {
8f78d0e9
KR		 4938 last_call_info->start_symbol = label_symbol->lss_label;
4939 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
2f156c92 4940#if 0
86066d06
JL		 4941 if (! USE_ALIASES)
4942 {
4943 /* The label was defined in a different segment. Fix that
4944 along with the value and associated fragment. */
4945 S_SET_SEGMENT (last_call_info->start_symbol, now_seg);
4946 S_SET_VALUE (last_call_info->start_symbol,
4947 ((char*)obstack_next_free (&frags)
4948 - frag_now->fr_literal));
4949 last_call_info->start_symbol->sy_frag = frag_now;
4950 }
2f156c92 4951#endif
025b0302
ME		 4952 }
4953 else
4047ff1d 4954 as_bad ("Missing function name for .PROC (corrupted label chain)");
025b0302
ME		 4955 }
4956 else
4047ff1d 4957 last_call_info->start_symbol = NULL;
025b0302
ME		 4958 }
4959
4960 demand_empty_rest_of_line ();
025b0302
ME		 4961}
4962
8f78d0e9
KR		 4963/* Process the syntatical end of a procedure. Make sure all the
4964 appropriate pseudo-ops were found within the procedure. */
4965
4966static void
4967pa_procend (unused)
4968 int unused;
025b0302
ME		 4969{
4970
4971 if (!within_procedure)
4972 as_bad ("misplaced .procend");
4973
4974 if (!callinfo_found)
4975 as_bad ("Missing .callinfo for this procedure");
4976
4977 if (within_entry_exit)
4978 as_bad ("Missing .EXIT for a .ENTRY");
4979
44c0de53
JL		 4980#ifdef OBJ_ELF
4981 /* ELF needs to mark the end of each function so that it can compute
4982 the size of the function (apparently its needed in the symbol table. */
4983 hppa_elf_mark_end_of_function ();
4984#endif
4985
025b0302
ME		 4986 within_procedure = FALSE;
4987 demand_empty_rest_of_line ();
fca59f9d 4988 pa_undefine_label ();
025b0302
ME		 4989}
4990
8f78d0e9
KR		 4991/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
4992 then create a new space entry to hold the information specified
4993 by the parameters to the .SPACE directive. */
4994
4995static sd_chain_struct *
025b0302
ME		 4996pa_parse_space_stmt (space_name, create_flag)
4997 char *space_name;
4998 int create_flag;
4999{
8f78d0e9
KR		 5000 char *name, *ptemp, c;
5001 char loadable, defined, private, sort;
025b0302 5002 int spnum;
3b9a72c5 5003 asection *seg = NULL;
8f78d0e9 5004 sd_chain_struct *space;
025b0302
ME		 5005
5006 /* load default values */
5007 spnum = 0;
3b9a72c5 5008 sort = 0;
025b0302
ME		 5009 loadable = TRUE;
5010 defined = TRUE;
5011 private = FALSE;
4047ff1d 5012 if (strcmp (space_name, "$TEXT$") == 0)
025b0302 5013 {
0f3b419c
JL		 5014 seg = pa_def_spaces[0].segment;
5015 sort = pa_def_spaces[0].sort;
025b0302 5016 }
4047ff1d 5017 else if (strcmp (space_name, "$PRIVATE$") == 0)
025b0302 5018 {
0f3b419c
JL		 5019 seg = pa_def_spaces[1].segment;
5020 sort = pa_def_spaces[1].sort;
025b0302
ME		 5021 }
5022
5023 if (!is_end_of_statement ())
5024 {
5025 print_errors = FALSE;
5026 ptemp = input_line_pointer + 1;
8f78d0e9
KR		 5027 /* First see if the space was specified as a number rather than
5028 as a name. According to the PA assembly manual the rest of
5029 the line should be ignored. */
5030 if ((spnum = pa_parse_number (&ptemp, 0)) >= 0)
5031 input_line_pointer = ptemp;
025b0302
ME		 5032 else
5033 {
5034 while (!is_end_of_statement ())
5035 {
5036 input_line_pointer++;
5037 name = input_line_pointer;
5038 c = get_symbol_end ();
4047ff1d 5039 if ((strncasecmp (name, "spnum", 5) == 0))
025b0302 5040 {
8f78d0e9 5041 *input_line_pointer = c;
025b0302 5042 input_line_pointer++;
8f78d0e9 5043 spnum = get_absolute_expression ();
025b0302 5044 }
4047ff1d 5045 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302 5046 {
8f78d0e9 5047 *input_line_pointer = c;
025b0302 5048 input_line_pointer++;
8f78d0e9 5049 sort = get_absolute_expression ();
025b0302 5050 }
4047ff1d 5051 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302 5052 {
8f78d0e9 5053 *input_line_pointer = c;
025b0302
ME		 5054 loadable = FALSE;
5055 }
4047ff1d 5056 else if ((strncasecmp (name, "notdefined", 10) == 0))
025b0302 5057 {
8f78d0e9 5058 *input_line_pointer = c;
025b0302
ME		 5059 defined = FALSE;
5060 }
4047ff1d 5061 else if ((strncasecmp (name, "private", 7) == 0))
025b0302 5062 {
8f78d0e9 5063 *input_line_pointer = c;
025b0302
ME		 5064 private = TRUE;
5065 }
5066 else
3515a504
JL		 5067 {
5068 as_bad ("Invalid .SPACE argument");
5069 *input_line_pointer = c;
c5e9ccd0 5070 if (!is_end_of_statement ())
3515a504
JL		 5071 input_line_pointer++;
5072 }
025b0302
ME		 5073 }
5074 }
5075 print_errors = TRUE;
5076 }
8f78d0e9 5077
3b9a72c5
JL		 5078 if (create_flag && seg == NULL)
5079 seg = subseg_new (space_name, 0);
c5e9ccd0 5080
8f78d0e9
KR		 5081 /* If create_flag is nonzero, then create the new space with
5082 the attributes computed above. Else set the values in
5083 an already existing space -- this can only happen for
5084 the first occurence of a built-in space. */
025b0302 5085 if (create_flag)
8f78d0e9
KR		 5086 space = create_new_space (space_name, spnum, loadable, defined,
5087 private, sort, seg, 1);
025b0302 5088 else
8f78d0e9 5089 {
025b0302
ME		 5090 space = is_defined_space (space_name);
5091 SPACE_SPNUM (space) = spnum;
025b0302 5092 SPACE_DEFINED (space) = defined & 1;
8f78d0e9 5093 SPACE_USER_DEFINED (space) = 1;
025b0302
ME		 5094 space->sd_seg = seg;
5095 }
548ea75b
JL		 5096
5097#ifdef obj_set_section_attributes
5098 obj_set_section_attributes (seg, defined, private, sort, spnum);
5099#endif
5100
025b0302
ME		 5101 return space;
5102}
5103
8f78d0e9
KR		 5104/* Handle a .SPACE pseudo-op; this switches the current space to the
5105 given space, creating the new space if necessary. */
5106
5107static void
5108pa_space (unused)
5109 int unused;
025b0302 5110{
aa8b30ed 5111 char *name, c, *space_name, *save_s;
8f78d0e9
KR		 5112 int temp;
5113 sd_chain_struct *sd_chain;
025b0302
ME		 5114
5115 if (within_procedure)
5116 {
5117 as_bad ("Can\'t change spaces within a procedure definition. Ignored");
5118 ignore_rest_of_line ();
5119 }
5120 else
5121 {
8f78d0e9
KR		 5122 /* Check for some of the predefined spaces. FIXME: most of the code
5123 below is repeated several times, can we extract the common parts
5124 and place them into a subroutine or something similar? */
4047ff1d
JL		 5125 /* FIXME Is this (and the next IF stmt) really right?
5126 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5127 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
025b0302
ME		 5128 {
5129 input_line_pointer += 6;
5130 sd_chain = is_defined_space ("$TEXT$");
5131 if (sd_chain == NULL)
5132 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
8f78d0e9 5133 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5134 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
5135
5136 current_space = sd_chain;
80aab579 5137 subseg_set (text_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5138 current_subspace
5139 = pa_subsegment_to_subspace (text_section,
5140 sd_chain->sd_last_subseg);
025b0302
ME		 5141 demand_empty_rest_of_line ();
5142 return;
5143 }
4047ff1d 5144 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
025b0302
ME		 5145 {
5146 input_line_pointer += 9;
5147 sd_chain = is_defined_space ("$PRIVATE$");
5148 if (sd_chain == NULL)
5149 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
8f78d0e9 5150 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5151 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
5152
5153 current_space = sd_chain;
80aab579 5154 subseg_set (data_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5155 current_subspace
5156 = pa_subsegment_to_subspace (data_section,
5157 sd_chain->sd_last_subseg);
025b0302
ME		 5158 demand_empty_rest_of_line ();
5159 return;
5160 }
8f78d0e9
KR		 5161 if (!strncasecmp (input_line_pointer,
5162 GDB_DEBUG_SPACE_NAME,
5163 strlen (GDB_DEBUG_SPACE_NAME)))
025b0302
ME		 5164 {
5165 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
5166 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
5167 if (sd_chain == NULL)
5168 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
8f78d0e9 5169 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5170 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
5171
5172 current_space = sd_chain;
80aab579 5173
5cf4cd1b 5174 {
8f78d0e9
KR		 5175 asection *gdb_section
5176 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
5177
8f78d0e9
KR		 5178 subseg_set (gdb_section, sd_chain->sd_last_subseg);
5179 current_subspace
5180 = pa_subsegment_to_subspace (gdb_section,
5181 sd_chain->sd_last_subseg);
5cf4cd1b 5182 }
025b0302
ME		 5183 demand_empty_rest_of_line ();
5184 return;
5185 }
5186
8f78d0e9 5187 /* It could be a space specified by number. */
aa8b30ed
JL		 5188 print_errors = 0;
5189 save_s = input_line_pointer;
8f78d0e9 5190 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
025b0302
ME		 5191 {
5192 if (sd_chain = pa_find_space_by_number (temp))
5193 {
5194 current_space = sd_chain;
8f78d0e9 5195
80aab579 5196 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5197 current_subspace
5198 = pa_subsegment_to_subspace (sd_chain->sd_seg,
5199 sd_chain->sd_last_subseg);
025b0302
ME		 5200 demand_empty_rest_of_line ();
5201 return;
5202 }
5203 }
5204
8f78d0e9 5205 /* Not a number, attempt to create a new space. */
aa8b30ed
JL		 5206 print_errors = 1;
5207 input_line_pointer = save_s;
025b0302
ME		 5208 name = input_line_pointer;
5209 c = get_symbol_end ();
8f78d0e9 5210 space_name = xmalloc (strlen (name) + 1);
025b0302
ME		 5211 strcpy (space_name, name);
5212 *input_line_pointer = c;
5213
5214 sd_chain = pa_parse_space_stmt (space_name, 1);
5215 current_space = sd_chain;
8f78d0e9 5216
80aab579 5217 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
025b0302
ME		 5218 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
5219 sd_chain->sd_last_subseg);
5220 demand_empty_rest_of_line ();
5221 }
025b0302
ME		 5222}
5223
c5e9ccd0 5224/* Switch to a new space. (I think). FIXME. */
8f78d0e9
KR		 5225
5226static void
5227pa_spnum (unused)
5228 int unused;
025b0302 5229{
8f78d0e9
KR		 5230 char *name;
5231 char c;
5232 char *p;
5233 sd_chain_struct *space;
025b0302
ME		 5234
5235 name = input_line_pointer;
5236 c = get_symbol_end ();
5237 space = is_defined_space (name);
5238 if (space)
5239 {
5240 p = frag_more (4);
025b0302
ME		 5241 md_number_to_chars (p, SPACE_SPNUM (space), 4);
5242 }
5243 else
5244 as_warn ("Undefined space: '%s' Assuming space number = 0.", name);
5245
5246 *input_line_pointer = c;
5247 demand_empty_rest_of_line ();
025b0302
ME		 5248}
5249
8f78d0e9 5250/* If VALUE is an exact power of two between zero and 2^31, then
aa8b30ed 5251 return log2 (VALUE). Else return -1. */
8f78d0e9
KR		 5252
5253static int
aa8b30ed 5254log2 (value)
025b0302
ME		 5255 int value;
5256{
8f78d0e9 5257 int shift = 0;
025b0302 5258
025b0302
ME		 5259 while ((1 << shift) != value && shift < 32)
5260 shift++;
5261
5262 if (shift >= 32)
aa8b30ed 5263 return -1;
8f78d0e9 5264 else
aa8b30ed 5265 return shift;
025b0302
ME		 5266}
5267
3b9a72c5 5268/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
8f78d0e9
KR		 5269 given subspace, creating the new subspace if necessary.
5270
5271 FIXME. Should mirror pa_space more closely, in particular how
5272 they're broken up into subroutines. */
5273
5274static void
5275pa_subspace (unused)
5276 int unused;
025b0302 5277{
3b9a72c5 5278 char *name, *ss_name, *alias, c;
8f78d0e9 5279 char loadable, code_only, common, dup_common, zero, sort;
3b9a72c5 5280 int i, access, space_index, alignment, quadrant, applicable, flags;
8f78d0e9
KR		 5281 sd_chain_struct *space;
5282 ssd_chain_struct *ssd;
3b9a72c5 5283 asection *section;
025b0302
ME		 5284
5285 if (within_procedure)
5286 {
5287 as_bad ("Can\'t change subspaces within a procedure definition. Ignored");
5288 ignore_rest_of_line ();
5289 }
5290 else
5291 {
5292 name = input_line_pointer;
5293 c = get_symbol_end ();
025b0302
ME		 5294 ss_name = xmalloc (strlen (name) + 1);
5295 strcpy (ss_name, name);
025b0302
ME		 5296 *input_line_pointer = c;
5297
8f78d0e9 5298 /* Load default values. */
025b0302
ME		 5299 sort = 0;
5300 access = 0x7f;
5301 loadable = 1;
5302 common = 0;
5303 dup_common = 0;
5304 code_only = 0;
5305 zero = 0;
8f78d0e9
KR		 5306 space_index = ~0;
5307 alignment = 0;
025b0302 5308 quadrant = 0;
3b9a72c5 5309 alias = NULL;
025b0302 5310
3b9a72c5 5311 space = current_space;
47f45d66
JL		 5312 ssd = is_defined_subspace (ss_name);
5313 /* Allow user to override the builtin attributes of subspaces. But
c5e9ccd0 5314 only allow the attributes to be changed once! */
47f45d66 5315 if (ssd && SUBSPACE_DEFINED (ssd))
025b0302 5316 {
8f78d0e9
KR		 5317 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
5318 if (!is_end_of_statement ())
5319 as_warn ("Parameters of an existing subspace can\'t be modified");
5320 demand_empty_rest_of_line ();
5321 return;
025b0302
ME		 5322 }
5323 else
5324 {
3b9a72c5
JL		 5325 /* A new subspace. Load default values if it matches one of
5326 the builtin subspaces. */
025b0302
ME		 5327 i = 0;
5328 while (pa_def_subspaces[i].name)
5329 {
5330 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
5331 {
5332 loadable = pa_def_subspaces[i].loadable;
5333 common = pa_def_subspaces[i].common;
5334 dup_common = pa_def_subspaces[i].dup_common;
5335 code_only = pa_def_subspaces[i].code_only;
5336 zero = pa_def_subspaces[i].zero;
5337 space_index = pa_def_subspaces[i].space_index;
8f78d0e9 5338 alignment = pa_def_subspaces[i].alignment;
025b0302
ME		 5339 quadrant = pa_def_subspaces[i].quadrant;
5340 access = pa_def_subspaces[i].access;
5341 sort = pa_def_subspaces[i].sort;
3b9a72c5
JL		 5342 if (USE_ALIASES && pa_def_subspaces[i].alias)
5343 alias = pa_def_subspaces[i].alias;
025b0302
ME		 5344 break;
5345 }
5346 i++;
5347 }
5348 }
5349
8f78d0e9
KR		 5350 /* We should be working with a new subspace now. Fill in
5351 any information as specified by the user. */
025b0302
ME		 5352 if (!is_end_of_statement ())
5353 {
5354 input_line_pointer++;
5355 while (!is_end_of_statement ())
5356 {
5357 name = input_line_pointer;
5358 c = get_symbol_end ();
4047ff1d 5359 if ((strncasecmp (name, "quad", 4) == 0))
025b0302
ME		 5360 {
5361 *input_line_pointer = c;
5362 input_line_pointer++;
8f78d0e9 5363 quadrant = get_absolute_expression ();
025b0302 5364 }
4047ff1d 5365 else if ((strncasecmp (name, "align", 5) == 0))
025b0302
ME		 5366 {
5367 *input_line_pointer = c;
5368 input_line_pointer++;
8f78d0e9 5369 alignment = get_absolute_expression ();
aa8b30ed 5370 if (log2 (alignment) == -1)
025b0302
ME		 5371 {
5372 as_bad ("Alignment must be a power of 2");
5373 alignment = 1;
5374 }
5375 }
4047ff1d 5376 else if ((strncasecmp (name, "access", 6) == 0))
025b0302
ME		 5377 {
5378 *input_line_pointer = c;
5379 input_line_pointer++;
8f78d0e9 5380 access = get_absolute_expression ();
025b0302 5381 }
4047ff1d 5382 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302
ME		 5383 {
5384 *input_line_pointer = c;
5385 input_line_pointer++;
8f78d0e9 5386 sort = get_absolute_expression ();
025b0302 5387 }
4047ff1d 5388 else if ((strncasecmp (name, "code_only", 9) == 0))
025b0302
ME		 5389 {
5390 *input_line_pointer = c;
5391 code_only = 1;
5392 }
4047ff1d 5393 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302
ME		 5394 {
5395 *input_line_pointer = c;
5396 loadable = 0;
5397 }
4047ff1d 5398 else if ((strncasecmp (name, "common", 6) == 0))
025b0302
ME		 5399 {
5400 *input_line_pointer = c;
5401 common = 1;
5402 }
4047ff1d 5403 else if ((strncasecmp (name, "dup_comm", 8) == 0))
025b0302
ME		 5404 {
5405 *input_line_pointer = c;
5406 dup_common = 1;
5407 }
4047ff1d 5408 else if ((strncasecmp (name, "zero", 4) == 0))
025b0302
ME		 5409 {
5410 *input_line_pointer = c;
5411 zero = 1;
5412 }
4047ff1d 5413 else if ((strncasecmp (name, "first", 5) == 0))
8f78d0e9 5414 as_bad ("FIRST not supported as a .SUBSPACE argument");
025b0302 5415 else
8f78d0e9 5416 as_bad ("Invalid .SUBSPACE argument");
025b0302
ME		 5417 if (!is_end_of_statement ())
5418 input_line_pointer++;
5419 }
5420 }
8f78d0e9 5421
3b9a72c5 5422 /* Compute a reasonable set of BFD flags based on the information
c5e9ccd0 5423 in the .subspace directive. */
3b9a72c5
JL		 5424 applicable = bfd_applicable_section_flags (stdoutput);
5425 flags = 0;
5426 if (loadable)
5427 flags |= (SEC_ALLOC | SEC_LOAD);
5428 if (code_only)
5429 flags |= SEC_CODE;
5430 if (common || dup_common)
5431 flags |= SEC_IS_COMMON;
5432
5433 /* This is a zero-filled subspace (eg BSS). */
5434 if (zero)
5435 flags &= ~SEC_LOAD;
5436
5437 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
5438 applicable &= flags;
5439
5440 /* If this is an existing subspace, then we want to use the
c5e9ccd0 5441 segment already associated with the subspace.
3b9a72c5 5442
c5e9ccd0
JL		 5443 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5444 lots of sections. It might be a problem in the PA ELF
5445 code, I do not know yet. For now avoid creating anything
5446 but the "standard" sections for ELF. */
3b9a72c5
JL		 5447 if (ssd)
5448 section = ssd->ssd_seg;
47f45d66 5449 else if (alias)
3b9a72c5 5450 section = subseg_new (alias, 0);
c5e9ccd0 5451 else if (!alias && USE_ALIASES)
3b9a72c5
JL		 5452 {
5453 as_warn ("Ignoring subspace decl due to ELF BFD bugs.");
5454 demand_empty_rest_of_line ();
5455 return;
5456 }
c5e9ccd0 5457 else
3b9a72c5
JL		 5458 section = subseg_new (ss_name, 0);
5459
5460 /* Now set the flags. */
5461 bfd_set_section_flags (stdoutput, section, applicable);
5462
5463 /* Record any alignment request for this section. */
5464 record_alignment (section, log2 (alignment));
5465
5466 /* Set the starting offset for this section. */
5467 bfd_set_section_vma (stdoutput, section,
5468 pa_subspace_start (space, quadrant));
c5e9ccd0 5469
8f78d0e9 5470 /* Now that all the flags are set, update an existing subspace,
3b9a72c5 5471 or create a new one. */
025b0302 5472 if (ssd)
3b9a72c5
JL		 5473
5474 current_subspace = update_subspace (space, ss_name, loadable,
5475 code_only, common, dup_common,
5476 sort, zero, access, space_index,
c5e9ccd0 5477 alignment, quadrant,
47f45d66 5478 section);
025b0302 5479 else
8f78d0e9
KR		 5480 current_subspace = create_new_subspace (space, ss_name, loadable,
5481 code_only, common,
5482 dup_common, zero, sort,
5483 access, space_index,
c5e9ccd0 5484 alignment, quadrant, section);
025b0302
ME		 5485
5486 demand_empty_rest_of_line ();
3b9a72c5 5487 current_subspace->ssd_seg = section;
80aab579 5488 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
025b0302 5489 }
47f45d66 5490 SUBSPACE_DEFINED (current_subspace) = 1;
025b0302
ME		 5491}
5492
025b0302 5493
8f78d0e9 5494/* Create default space and subspace dictionaries. */
025b0302 5495
c5e9ccd0 5496static void
025b0302
ME		 5497pa_spaces_begin ()
5498{
025b0302 5499 int i;
025b0302
ME		 5500
5501 space_dict_root = NULL;
5502 space_dict_last = NULL;
5503
025b0302
ME		 5504 i = 0;
5505 while (pa_def_spaces[i].name)
5506 {
3b9a72c5
JL		 5507 char *name;
5508
5509 /* Pick the right name to use for the new section. */
5510 if (pa_def_spaces[i].alias && USE_ALIASES)
5511 name = pa_def_spaces[i].alias;
025b0302 5512 else
c5e9ccd0 5513 name = pa_def_spaces[i].name;
025b0302 5514
3b9a72c5 5515 pa_def_spaces[i].segment = subseg_new (name, 0);
025b0302
ME		 5516 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
5517 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
8f78d0e9
KR		 5518 pa_def_spaces[i].private, pa_def_spaces[i].sort,
5519 pa_def_spaces[i].segment, 0);
025b0302
ME		 5520 i++;
5521 }
5522
5523 i = 0;
5524 while (pa_def_subspaces[i].name)
5525 {
3b9a72c5
JL		 5526 char *name;
5527 int applicable, subsegment;
5528 asection *segment = NULL;
5529 sd_chain_struct *space;
5530
5531 /* Pick the right name for the new section and pick the right
c5e9ccd0 5532 subsegment number. */
3b9a72c5 5533 if (pa_def_subspaces[i].alias && USE_ALIASES)
025b0302 5534 {
3b9a72c5
JL		 5535 name = pa_def_subspaces[i].alias;
5536 subsegment = pa_def_subspaces[i].subsegment;
025b0302
ME		 5537 }
5538 else
3b9a72c5
JL		 5539 {
5540 name = pa_def_subspaces[i].name;
5541 subsegment = 0;
5542 }
c5e9ccd0 5543
3b9a72c5
JL		 5544 /* Create the new section. */
5545 segment = subseg_new (name, subsegment);
5546
5547
5548 /* For SOM we want to replace the standard .text, .data, and .bss
c5e9ccd0
JL		 5549 sections with our own. */
5550 if (!strcmp (pa_def_subspaces[i].name, "$CODE$") && !USE_ALIASES)
3b9a72c5
JL		 5551 {
5552 text_section = segment;
5553 applicable = bfd_applicable_section_flags (stdoutput);
5554 bfd_set_section_flags (stdoutput, text_section,
c5e9ccd0
JL		 5555 applicable & (SEC_ALLOC | SEC_LOAD
5556 | SEC_RELOC | SEC_CODE
5557 | SEC_READONLY
3b9a72c5
JL		 5558 | SEC_HAS_CONTENTS));
5559 }
c5e9ccd0 5560 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$") && !USE_ALIASES)
3b9a72c5
JL		 5561 {
5562 data_section = segment;
5563 applicable = bfd_applicable_section_flags (stdoutput);
5564 bfd_set_section_flags (stdoutput, data_section,
c5e9ccd0 5565 applicable & (SEC_ALLOC | SEC_LOAD
3b9a72c5
JL		 5566 | SEC_RELOC
5567 | SEC_HAS_CONTENTS));
c5e9ccd0
JL		 5568
5569
3b9a72c5 5570 }
c5e9ccd0 5571 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$") && !USE_ALIASES)
3b9a72c5
JL		 5572 {
5573 bss_section = segment;
5574 applicable = bfd_applicable_section_flags (stdoutput);
5575 bfd_set_section_flags (stdoutput, bss_section,
5576 applicable & SEC_ALLOC);
5577 }
5578
5579 /* Find the space associated with this subspace. */
5580 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
5581 def_space_index].segment);
5582 if (space == NULL)
5583 {
5584 as_fatal ("Internal error: Unable to find containing space for %s.",
5585 pa_def_subspaces[i].name);
5586 }
5587
5588 create_new_subspace (space, name,
5589 pa_def_subspaces[i].loadable,
5590 pa_def_subspaces[i].code_only,
5591 pa_def_subspaces[i].common,
5592 pa_def_subspaces[i].dup_common,
5593 pa_def_subspaces[i].zero,
5594 pa_def_subspaces[i].sort,
5595 pa_def_subspaces[i].access,
5596 pa_def_subspaces[i].space_index,
5597 pa_def_subspaces[i].alignment,
5598 pa_def_subspaces[i].quadrant,
5599 segment);
025b0302
ME		 5600 i++;
5601 }
5602}
5603
8f78d0e9
KR		 5604
5605
5606/* Create a new space NAME, with the appropriate flags as defined
dd2f509f 5607 by the given parameters. */
8f78d0e9
KR		 5608
5609static sd_chain_struct *
5610create_new_space (name, spnum, loadable, defined, private,
5611 sort, seg, user_defined)
025b0302
ME		 5612 char *name;
5613 int spnum;
5614 char loadable;
5615 char defined;
5616 char private;
5617 char sort;
025b0302 5618 asection *seg;
8f78d0e9 5619 int user_defined;
025b0302 5620{
8f78d0e9
KR		 5621 sd_chain_struct *chain_entry;
5622
5623 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
025b0302 5624 if (!chain_entry)
8f78d0e9
KR		 5625 as_fatal ("Out of memory: could not allocate new space chain entry: %s\n",
5626 name);
025b0302
ME		 5627
5628 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5629 strcpy (SPACE_NAME (chain_entry), name);
8f78d0e9
KR		 5630 SPACE_DEFINED (chain_entry) = defined;
5631 SPACE_USER_DEFINED (chain_entry) = user_defined;
8f78d0e9 5632 SPACE_SPNUM (chain_entry) = spnum;
025b0302 5633
025b0302
ME		 5634 chain_entry->sd_seg = seg;
5635 chain_entry->sd_last_subseg = -1;
5636 chain_entry->sd_next = NULL;
5637
8f78d0e9 5638 /* Find spot for the new space based on its sort key. */
025b0302
ME		 5639 if (!space_dict_last)
5640 space_dict_last = chain_entry;
5641
8f78d0e9 5642 if (space_dict_root == NULL)
025b0302
ME		 5643 space_dict_root = chain_entry;
5644 else
5645 {
8f78d0e9
KR		 5646 sd_chain_struct *chain_pointer;
5647 sd_chain_struct *prev_chain_pointer;
025b0302 5648
8f78d0e9
KR		 5649 chain_pointer = space_dict_root;
5650 prev_chain_pointer = NULL;
025b0302 5651
8f78d0e9 5652 while (chain_pointer)
025b0302 5653 {
dd2f509f
JL		 5654 prev_chain_pointer = chain_pointer;
5655 chain_pointer = chain_pointer->sd_next;
025b0302
ME		 5656 }
5657
8f78d0e9
KR		 5658 /* At this point we've found the correct place to add the new
5659 entry. So add it and update the linked lists as appropriate. */
5660 if (prev_chain_pointer)
025b0302 5661 {
8f78d0e9
KR		 5662 chain_entry->sd_next = chain_pointer;
5663 prev_chain_pointer->sd_next = chain_entry;
025b0302
ME		 5664 }
5665 else
5666 {
5667 space_dict_root = chain_entry;
8f78d0e9 5668 chain_entry->sd_next = chain_pointer;
025b0302
ME		 5669 }
5670
5671 if (chain_entry->sd_next == NULL)
5672 space_dict_last = chain_entry;
5673 }
5674
548ea75b
JL		 5675 /* This is here to catch predefined spaces which do not get
5676 modified by the user's input. Another call is found at
5677 the bottom of pa_parse_space_stmt to handle cases where
5678 the user modifies a predefined space. */
5679#ifdef obj_set_section_attributes
5680 obj_set_section_attributes (seg, defined, private, sort, spnum);
5681#endif
5682
025b0302
ME		 5683 return chain_entry;
5684}
5685
8f78d0e9
KR		 5686/* Create a new subspace NAME, with the appropriate flags as defined
5687 by the given parameters.
5688
5689 Add the new subspace to the subspace dictionary chain in numerical
5690 order as defined by the SORT entries. */
5691
5692static ssd_chain_struct *
5693create_new_subspace (space, name, loadable, code_only, common,
5694 dup_common, is_zero, sort, access, space_index,
5695 alignment, quadrant, seg)
5696 sd_chain_struct *space;
025b0302 5697 char *name;
8f78d0e9 5698 char loadable, code_only, common, dup_common, is_zero;
025b0302
ME		 5699 char sort;
5700 int access;
5701 int space_index;
5702 int alignment;
5703 int quadrant;
5704 asection *seg;
5705{
8f78d0e9 5706 ssd_chain_struct *chain_entry;
025b0302 5707
8f78d0e9 5708 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
025b0302
ME		 5709 if (!chain_entry)
5710 as_fatal ("Out of memory: could not allocate new subspace chain entry: %s\n", name);
5711
025b0302
ME		 5712 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5713 strcpy (SUBSPACE_NAME (chain_entry), name);
5714
240cbc57
JL		 5715 /* Initialize subspace_defined. When we hit a .subspace directive
5716 we'll set it to 1 which "locks-in" the subspace attributes. */
5717 SUBSPACE_DEFINED (chain_entry) = 0;
5718
3b9a72c5 5719 chain_entry->ssd_subseg = USE_ALIASES ? pa_next_subseg (space) : 0;
025b0302 5720 chain_entry->ssd_seg = seg;
025b0302
ME		 5721 chain_entry->ssd_next = NULL;
5722
8f78d0e9
KR		 5723 /* Find spot for the new subspace based on its sort key. */
5724 if (space->sd_subspaces == NULL)
025b0302
ME		 5725 space->sd_subspaces = chain_entry;
5726 else
5727 {
8f78d0e9
KR		 5728 ssd_chain_struct *chain_pointer;
5729 ssd_chain_struct *prev_chain_pointer;
025b0302 5730
8f78d0e9
KR		 5731 chain_pointer = space->sd_subspaces;
5732 prev_chain_pointer = NULL;
025b0302 5733
8f78d0e9 5734 while (chain_pointer)
025b0302 5735 {
dd2f509f
JL		 5736 prev_chain_pointer = chain_pointer;
5737 chain_pointer = chain_pointer->ssd_next;
025b0302
ME		 5738 }
5739
8f78d0e9
KR		 5740 /* Now we have somewhere to put the new entry. Insert it and update
5741 the links. */
5742 if (prev_chain_pointer)
025b0302 5743 {
8f78d0e9
KR		 5744 chain_entry->ssd_next = chain_pointer;
5745 prev_chain_pointer->ssd_next = chain_entry;
025b0302
ME		 5746 }
5747 else
5748 {
5749 space->sd_subspaces = chain_entry;
8f78d0e9 5750 chain_entry->ssd_next = chain_pointer;
025b0302
ME		 5751 }
5752 }
5753
548ea75b 5754#ifdef obj_set_subsection_attributes
c5e9ccd0 5755 obj_set_subsection_attributes (seg, space->sd_seg, access,
548ea75b
JL		 5756 sort, quadrant);
5757#endif
5758
025b0302 5759 return chain_entry;
025b0302
ME		 5760}
5761
8f78d0e9
KR		 5762/* Update the information for the given subspace based upon the
5763 various arguments. Return the modified subspace chain entry. */
5764
5765static ssd_chain_struct *
3b9a72c5 5766update_subspace (space, name, loadable, code_only, common, dup_common, sort,
18c4f112 5767 zero, access, space_index, alignment, quadrant, section)
3b9a72c5 5768 sd_chain_struct *space;
025b0302 5769 char *name;
8f78d0e9
KR		 5770 char loadable;
5771 char code_only;
5772 char common;
5773 char dup_common;
5774 char zero;
025b0302
ME		 5775 char sort;
5776 int access;
5777 int space_index;
5778 int alignment;
5779 int quadrant;
18c4f112 5780 asection *section;
025b0302 5781{
8f78d0e9 5782 ssd_chain_struct *chain_entry;
025b0302 5783
dd2f509f 5784 chain_entry = is_defined_subspace (name);
025b0302 5785
548ea75b 5786#ifdef obj_set_subsection_attributes
c5e9ccd0 5787 obj_set_subsection_attributes (section, space->sd_seg, access,
548ea75b
JL		 5788 sort, quadrant);
5789#endif
5790
025b0302 5791 return chain_entry;
025b0302
ME		 5792}
5793
8f78d0e9
KR		 5794/* Return the space chain entry for the space with the name NAME or
5795 NULL if no such space exists. */
5796
5797static sd_chain_struct *
025b0302
ME		 5798is_defined_space (name)
5799 char *name;
5800{
8f78d0e9 5801 sd_chain_struct *chain_pointer;
025b0302 5802
8f78d0e9
KR		 5803 for (chain_pointer = space_dict_root;
5804 chain_pointer;
5805 chain_pointer = chain_pointer->sd_next)
025b0302 5806 {
8f78d0e9
KR		 5807 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
5808 return chain_pointer;
025b0302
ME		 5809 }
5810
8f78d0e9 5811 /* No mapping from segment to space was found. Return NULL. */
025b0302
ME		 5812 return NULL;
5813}
5814
8f78d0e9
KR		 5815/* Find and return the space associated with the given seg. If no mapping
5816 from the given seg to a space is found, then return NULL.
5817
5818 Unlike subspaces, the number of spaces is not expected to grow much,
5819 so a linear exhaustive search is OK here. */
5820
5821static sd_chain_struct *
025b0302
ME		 5822pa_segment_to_space (seg)
5823 asection *seg;
5824{
8f78d0e9 5825 sd_chain_struct *space_chain;
025b0302 5826
8f78d0e9
KR		 5827 /* Walk through each space looking for the correct mapping. */
5828 for (space_chain = space_dict_root;
5829 space_chain;
5830 space_chain = space_chain->sd_next)
025b0302 5831 {
8f78d0e9
KR		 5832 if (space_chain->sd_seg == seg)
5833 return space_chain;
025b0302
ME		 5834 }
5835
8f78d0e9 5836 /* Mapping was not found. Return NULL. */
025b0302
ME		 5837 return NULL;
5838}
5839
8f78d0e9
KR		 5840/* Return the space chain entry for the subspace with the name NAME or
5841 NULL if no such subspace exists.
5842
5843 Uses a linear search through all the spaces and subspaces, this may
5844 not be appropriate if we ever being placing each function in its
5845 own subspace. */
5846
5847static ssd_chain_struct *
47f45d66 5848is_defined_subspace (name)
025b0302 5849 char *name;
025b0302 5850{
c5e9ccd0 5851 sd_chain_struct *space_chain;
8f78d0e9 5852 ssd_chain_struct *subspace_chain;
025b0302 5853
8f78d0e9
KR		 5854 /* Walk through each space. */
5855 for (space_chain = space_dict_root;
5856 space_chain;
5857 space_chain = space_chain->sd_next)
025b0302 5858 {
8f78d0e9
KR		 5859 /* Walk through each subspace looking for a name which matches. */
5860 for (subspace_chain = space_chain->sd_subspaces;
5861 subspace_chain;
5862 subspace_chain = subspace_chain->ssd_next)
5863 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
5864 return subspace_chain;
025b0302 5865 }
8f78d0e9
KR		 5866
5867 /* Subspace wasn't found. Return NULL. */
025b0302
ME		 5868 return NULL;
5869}
5870
8f78d0e9
KR		 5871/* Find and return the subspace associated with the given seg. If no
5872 mapping from the given seg to a subspace is found, then return NULL.
5873
5874 If we ever put each procedure/function within its own subspace
5875 (to make life easier on the compiler and linker), then this will have
5876 to become more efficient. */
5877
5878static ssd_chain_struct *
025b0302
ME		 5879pa_subsegment_to_subspace (seg, subseg)
5880 asection *seg;
5881 subsegT subseg;
5882{
8f78d0e9
KR		 5883 sd_chain_struct *space_chain;
5884 ssd_chain_struct *subspace_chain;
025b0302 5885
8f78d0e9
KR		 5886 /* Walk through each space. */
5887 for (space_chain = space_dict_root;
5888 space_chain;
5889 space_chain = space_chain->sd_next)
025b0302 5890 {
8f78d0e9 5891 if (space_chain->sd_seg == seg)
025b0302 5892 {
8f78d0e9
KR		 5893 /* Walk through each subspace within each space looking for
5894 the correct mapping. */
5895 for (subspace_chain = space_chain->sd_subspaces;
5896 subspace_chain;
5897 subspace_chain = subspace_chain->ssd_next)
5898 if (subspace_chain->ssd_subseg == (int) subseg)
5899 return subspace_chain;
025b0302
ME		 5900 }
5901 }
5902
8f78d0e9 5903 /* No mapping from subsegment to subspace found. Return NULL. */
025b0302
ME		 5904 return NULL;
5905}
5906
8f78d0e9
KR		 5907/* Given a number, try and find a space with the name number.
5908
5909 Return a pointer to a space dictionary chain entry for the space
5910 that was found or NULL on failure. */
5911
5912static sd_chain_struct *
025b0302
ME		 5913pa_find_space_by_number (number)
5914 int number;
5915{
8f78d0e9 5916 sd_chain_struct *space_chain;
025b0302 5917
8f78d0e9
KR		 5918 for (space_chain = space_dict_root;
5919 space_chain;
5920 space_chain = space_chain->sd_next)
025b0302 5921 {
8f78d0e9
KR		 5922 if (SPACE_SPNUM (space_chain) == number)
5923 return space_chain;
025b0302
ME		 5924 }
5925
8f78d0e9 5926 /* No appropriate space found. Return NULL. */
025b0302
ME		 5927 return NULL;
5928}
5929
8f78d0e9
KR		 5930/* Return the starting address for the given subspace. If the starting
5931 address is unknown then return zero. */
5932
5933static unsigned int
025b0302 5934pa_subspace_start (space, quadrant)
8f78d0e9 5935 sd_chain_struct *space;
025b0302
ME		 5936 int quadrant;
5937{
8f78d0e9
KR		 5938 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
5939 is not correct for the PA OSF1 port. */
4047ff1d 5940 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
8f78d0e9 5941 return 0x40000000;
025b0302 5942 else if (space->sd_seg == data_section && quadrant == 1)
8f78d0e9 5943 return 0x40000000;
025b0302
ME		 5944 else
5945 return 0;
5946}
5947
8f78d0e9
KR		 5948/* FIXME. Needs documentation. */
5949static int
025b0302 5950pa_next_subseg (space)
8f78d0e9 5951 sd_chain_struct *space;
025b0302
ME		 5952{
5953
5954 space->sd_last_subseg++;
5955 return space->sd_last_subseg;
5956}
5957
8f78d0e9
KR		 5958/* Helper function for pa_stringer. Used to find the end of
5959 a string. */
5960
025b0302
ME		 5961static unsigned int
5962pa_stringer_aux (s)
5963 char *s;
5964{
5965 unsigned int c = *s & CHAR_MASK;
5966 switch (c)
5967 {
5968 case '\"':
5969 c = NOT_A_CHAR;
5970 break;
5971 default:
5972 break;
5973 }
5974 return c;
5975}
5976
8f78d0e9
KR		 5977/* Handle a .STRING type pseudo-op. */
5978
5979static void
5980pa_stringer (append_zero)
5981 int append_zero;
025b0302 5982{
8f78d0e9 5983 char *s, num_buf[4];
025b0302 5984 unsigned int c;
025b0302
ME		 5985 int i;
5986
8f78d0e9
KR		 5987 /* Preprocess the string to handle PA-specific escape sequences.
5988 For example, \xDD where DD is a hexidecimal number should be
5989 changed to \OOO where OOO is an octal number. */
025b0302 5990
8f78d0e9
KR		 5991 /* Skip the opening quote. */
5992 s = input_line_pointer + 1;
025b0302
ME		 5993
5994 while (is_a_char (c = pa_stringer_aux (s++)))
5995 {
5996 if (c == '\\')
5997 {
5998 c = *s;
5999 switch (c)
6000 {
8f78d0e9 6001 /* Handle \x<num>. */
025b0302
ME		 6002 case 'x':
6003 {
6004 unsigned int number;
6005 int num_digit;
6006 char dg;
6007 char *s_start = s;
6008
8f78d0e9
KR		 6009 /* Get pas the 'x'. */
6010 s++;
025b0302
ME		 6011 for (num_digit = 0, number = 0, dg = *s;
6012 num_digit < 2
6013 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
6014 || (dg >= 'A' && dg <= 'F'));
6015 num_digit++)
6016 {
6017 if (isdigit (dg))
6018 number = number * 16 + dg - '0';
6019 else if (dg >= 'a' && dg <= 'f')
6020 number = number * 16 + dg - 'a' + 10;
6021 else
6022 number = number * 16 + dg - 'A' + 10;
6023
6024 s++;
6025 dg = *s;
6026 }
6027 if (num_digit > 0)
6028 {
6029 switch (num_digit)
6030 {
6031 case 1:
6032 sprintf (num_buf, "%02o", number);
6033 break;
6034 case 2:
6035 sprintf (num_buf, "%03o", number);
6036 break;
6037 }
6038 for (i = 0; i <= num_digit; i++)
6039 s_start[i] = num_buf[i];
6040 }
5cf4cd1b 6041 break;
025b0302 6042 }
8f78d0e9 6043 /* This might be a "\"", skip over the escaped char. */
5cf4cd1b
KR		 6044 default:
6045 s++;
025b0302
ME		 6046 break;
6047 }
6048 }
6049 }
6050 stringer (append_zero);
6051 pa_undefine_label ();
6052}
6053
8f78d0e9
KR		 6054/* Handle a .VERSION pseudo-op. */
6055
6056static void
6057pa_version (unused)
6058 int unused;
025b0302 6059{
8f78d0e9 6060 obj_version (0);
025b0302
ME		 6061 pa_undefine_label ();
6062}
6063
eb91665b
JL		 6064/* Handle a .COPYRIGHT pseudo-op. */
6065
6066static void
6067pa_copyright (unused)
6068 int unused;
6069{
6070 obj_copyright (0);
6071 pa_undefine_label ();
6072}
6073
8f78d0e9
KR		 6074/* Just like a normal cons, but when finished we have to undefine
6075 the latest space label. */
6076
6077static void
025b0302 6078pa_cons (nbytes)
8f78d0e9 6079 int nbytes;
025b0302
ME		 6080{
6081 cons (nbytes);
6082 pa_undefine_label ();
6083}
6084
8f78d0e9
KR		 6085/* Switch to the data space. As usual delete our label. */
6086
6087static void
6088pa_data (unused)
6089 int unused;
025b0302 6090{
80aab579 6091 s_data (0);
025b0302
ME		 6092 pa_undefine_label ();
6093}
6094
8f78d0e9 6095/* Like float_cons, but we need to undefine our label. */
c5e9ccd0 6096
8f78d0e9 6097static void
025b0302 6098pa_float_cons (float_type)
8f78d0e9 6099 int float_type;
025b0302
ME		 6100{
6101 float_cons (float_type);
6102 pa_undefine_label ();
6103}
6104
8f78d0e9
KR		 6105/* Like s_fill, but delete our label when finished. */
6106
6107static void
6108pa_fill (unused)
6109 int unused;
025b0302 6110{
80aab579 6111 s_fill (0);
025b0302
ME		 6112 pa_undefine_label ();
6113}
6114
8f78d0e9
KR		 6115/* Like lcomm, but delete our label when finished. */
6116
6117static void
025b0302 6118pa_lcomm (needs_align)
025b0302
ME		 6119 int needs_align;
6120{
6121 s_lcomm (needs_align);
6122 pa_undefine_label ();
6123}
6124
8f78d0e9
KR		 6125/* Like lsym, but delete our label when finished. */
6126
6127static void
6128pa_lsym (unused)
6129 int unused;
025b0302 6130{
80aab579 6131 s_lsym (0);
025b0302
ME		 6132 pa_undefine_label ();
6133}
6134
8f78d0e9
KR		 6135/* Switch to the text space. Like s_text, but delete our
6136 label when finished. */
6137static void
6138pa_text (unused)
6139 int unused;
025b0302 6140{
80aab579 6141 s_text (0);
025b0302
ME		 6142 pa_undefine_label ();
6143}
5cf4cd1b 6144
aa8b30ed
JL		 6145/* On the PA relocations which involve function symbols must not be
6146 adjusted. This so that the linker can know when/how to create argument
6147 relocation stubs for indirect calls and calls to static functions.
6148
6149 FIXME. Also reject R_HPPA relocations which are 32 bits
6150 wide. Helps with code lables in arrays for SOM. (SOM BFD code
6151 needs to generate relocations to push the addend and symbol value
6152 onto the stack, add them, then pop the value off the stack and
6153 use it in a relocation -- yuk. */
6154
6155int
c5e9ccd0 6156hppa_fix_adjustable (fixp)
aa8b30ed
JL		 6157 fixS *fixp;
6158{
6159 struct hppa_fix_struct *hppa_fix;
6160
6161 hppa_fix = fixp->tc_fix_data;
6162
6163 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
6164 return 0;
6165
c5e9ccd0 6166 if (fixp->fx_addsy == 0
aa8b30ed
JL		 6167 || (fixp->fx_addsy->bsym->flags & BSF_FUNCTION) == 0)
6168 return 1;
6169
6170 return 0;
6171}
c5e9ccd0 6172
335d35c8
JL		 6173/* Return nonzero if the fixup in FIXP will require a relocation,
6174 even it if appears that the fixup could be completely handled
6175 within GAS. */
6176
6177int
6178hppa_force_relocation (fixp)
6179 fixS *fixp;
6180{
6181 struct hppa_fix_struct *hppa_fixp = fixp->tc_fix_data;
6182
6183#ifdef OBJ_SOM
6184 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT)
6185 return 1;
6186#endif
6187
6188#define stub_needed(CALLER, CALLEE) \
6189 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6190
6191 /* It is necessary to force PC-relative calls/jumps to have a relocation
6192 entry if they're going to need either a argument relocation or long
6193 call stub. FIXME. Can't we need the same for absolute calls? */
753dcbbd 6194 if (fixp->fx_pcrel && fixp->fx_addsy
335d35c8
JL		 6195 && (stub_needed (((obj_symbol_type *)
6196 fixp->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
6197 hppa_fixp->fx_arg_reloc)))
6198 return 1;
6199
6200#undef stub_needed
6201
6202 /* No need (yet) to force another relocations to be emitted. */
6203 return 0;
6204}
6205
8f78d0e9
KR		 6206/* Now for some ELF specific code. FIXME. */
6207#ifdef OBJ_ELF
6208static symext_chainS *symext_rootP;
6209static symext_chainS *symext_lastP;
6210
44c0de53
JL		 6211/* Mark the end of a function so that it's possible to compute
6212 the size of the function in hppa_elf_final_processing. */
6213
6214static void
6215hppa_elf_mark_end_of_function ()
6216{
6217 /* ELF does not have EXIT relocations. All we do is create a
6218 temporary symbol marking the end of the function. */
6219 char *name = (char *)
6220 xmalloc (strlen ("L$\001end_") +
6221 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
6222
6223 if (name)
6224 {
6225 symbolS *symbolP;
6226
6227 strcpy (name, "L$\001end_");
6228 strcat (name, S_GET_NAME (last_call_info->start_symbol));
6229
6230 /* If we have a .exit followed by a .procend, then the
6231 symbol will have already been defined. */
6232 symbolP = symbol_find (name);
6233 if (symbolP)
6234 {
6235 /* The symbol has already been defined! This can
6236 happen if we have a .exit followed by a .procend.
6237
6238 This is *not* an error. All we want to do is free
6239 the memory we just allocated for the name and continue. */
6240 xfree (name);
6241 }
6242 else
6243 {
6244 /* symbol value should be the offset of the
6245 last instruction of the function */
6246 symbolP = symbol_new (name, now_seg,
6247 (valueT) (obstack_next_free (&frags)
6248 - frag_now->fr_literal - 4),
6249 frag_now);
6250
6251 assert (symbolP);
6252 symbolP->bsym->flags = BSF_LOCAL;
6253 symbol_table_insert (symbolP);
6254 }
6255
6256 if (symbolP)
6257 last_call_info->end_symbol = symbolP;
6258 else
6259 as_bad ("Symbol '%s' could not be created.", name);
6260
6261 }
6262 else
6263 as_bad ("No memory for symbol name.");
6264
44c0de53
JL		 6265}
6266
8f78d0e9 6267/* Do any symbol processing requested by the target-cpu or target-format. */
5cf4cd1b
KR		 6268
6269void
6270hppa_tc_symbol (abfd, symbolP, sym_idx)
8f78d0e9
KR		 6271 bfd *abfd;
6272 elf_symbol_type *symbolP;
5cf4cd1b
KR		 6273 int sym_idx;
6274{
6275 symext_chainS *symextP;
6276 unsigned int arg_reloc;
6277
8f78d0e9 6278 /* Only functions can have argument relocations. */
5cf4cd1b
KR		 6279 if (!(symbolP->symbol.flags & BSF_FUNCTION))
6280 return;
6281
6282 arg_reloc = symbolP->tc_data.hppa_arg_reloc;
6283
8f78d0e9
KR		 6284 /* If there are no argument relocation bits, then no relocation is
6285 necessary. Do not add this to the symextn section. */
6286 if (arg_reloc == 0)
6287 return;
6288
5cf4cd1b
KR		 6289 symextP = (symext_chainS *) bfd_alloc (abfd, sizeof (symext_chainS) * 2);
6290
6291 symextP[0].entry = ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX, sym_idx);
6292 symextP[0].next = &symextP[1];
6293
6294 symextP[1].entry = ELF32_HPPA_SX_WORD (HPPA_SXT_ARG_RELOC, arg_reloc);
6295 symextP[1].next = NULL;
6296
6297 if (symext_rootP == NULL)
6298 {
6299 symext_rootP = &symextP[0];
6300 symext_lastP = &symextP[1];
6301 }
6302 else
6303 {
6304 symext_lastP->next = &symextP[0];
6305 symext_lastP = &symextP[1];
6306 }
6307}
6308
8f78d0e9 6309/* Make sections needed by the target cpu and/or target format. */
5cf4cd1b
KR		 6310void
6311hppa_tc_make_sections (abfd)
8f78d0e9 6312 bfd *abfd;
5cf4cd1b
KR		 6313{
6314 symext_chainS *symextP;
5cf4cd1b
KR		 6315 segT save_seg = now_seg;
6316 subsegT save_subseg = now_subseg;
6317
8f78d0e9
KR		 6318 /* Build the symbol extension section. */
6319 hppa_tc_make_symextn_section ();
5cf4cd1b 6320
8f78d0e9
KR		 6321 /* Force some calculation to occur. */
6322 bfd_set_section_contents (stdoutput, stdoutput->sections, "", 0, 0);
5cf4cd1b
KR		 6323
6324 hppa_elf_stub_finish (abfd);
6325
8f78d0e9 6326 /* If no symbols for the symbol extension section, then stop now. */
5cf4cd1b
KR		 6327 if (symext_rootP == NULL)
6328 return;
6329
8f78d0e9 6330 /* Switch to the symbol extension section. */
dd2f509f 6331 subseg_new (SYMEXTN_SECTION_NAME, 0);
5cf4cd1b
KR		 6332
6333 frag_wane (frag_now);
6334 frag_new (0);
6335
6336 for (symextP = symext_rootP; symextP; symextP = symextP->next)
6337 {
6338 char *ptr;
8f78d0e9 6339 int *symtab_map = elf_sym_extra (abfd);
5cf4cd1b
KR		 6340 int idx;
6341
8f78d0e9
KR		 6342 /* First, patch the symbol extension record to reflect the true
6343 symbol table index. */
5cf4cd1b 6344
8f78d0e9 6345 if (ELF32_HPPA_SX_TYPE (symextP->entry) == HPPA_SXT_SYMNDX)
5cf4cd1b 6346 {
8f78d0e9 6347 idx = ELF32_HPPA_SX_VAL (symextP->entry) - 1;
5cf4cd1b 6348 symextP->entry = ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX,
8f78d0e9 6349 symtab_map[idx]);
5cf4cd1b
KR		 6350 }
6351
8f78d0e9
KR		 6352 ptr = frag_more (sizeof (symextP->entry));
6353 md_number_to_chars (ptr, symextP->entry, sizeof (symextP->entry));
5cf4cd1b
KR		 6354 }
6355
6356 frag_now->fr_fix = obstack_next_free (&frags) - frag_now->fr_literal;
6357 frag_wane (frag_now);
6358
8f78d0e9
KR		 6359 /* Switch back to the original segment. */
6360 subseg_set (save_seg, save_subseg);
5cf4cd1b
KR		 6361}
6362
8f78d0e9
KR		 6363/* Make the symbol extension section. */
6364
5cf4cd1b 6365static void
8f78d0e9 6366hppa_tc_make_symextn_section ()
5cf4cd1b 6367{
5cf4cd1b
KR		 6368 if (symext_rootP)
6369 {
6370 symext_chainS *symextP;
6371 int n;
8f78d0e9 6372 unsigned int size;
5cf4cd1b
KR		 6373 segT symextn_sec;
6374 segT save_seg = now_seg;
6375 subsegT save_subseg = now_subseg;
6376
6377 for (n = 0, symextP = symext_rootP; symextP; symextP = symextP->next, ++n)
6378 ;
6379
6380 size = sizeof (symext_entryS) * n;
6381
8f78d0e9 6382 symextn_sec = subseg_new (SYMEXTN_SECTION_NAME, 0);
5cf4cd1b 6383
8f78d0e9
KR		 6384 bfd_set_section_flags (stdoutput, symextn_sec,
6385 SEC_LOAD | SEC_HAS_CONTENTS | SEC_DATA);
5cf4cd1b
KR		 6386 bfd_set_section_size (stdoutput, symextn_sec, size);
6387
8f78d0e9
KR		 6388 /* Now, switch back to the original segment. */
6389 subseg_set (save_seg, save_subseg);
6390 }
6391}
6392
6393/* Build the symbol extension section. */
6394
6395static void
6396pa_build_symextn_section ()
6397{
6398 segT seg;
6399 asection *save_seg = now_seg;
6400 subsegT subseg = (subsegT) 0;
6401 subsegT save_subseg = now_subseg;
6402
6403 seg = subseg_new (".hppa_symextn", subseg);
6404 bfd_set_section_flags (stdoutput,
6405 seg,
c5e9ccd0 6406 SEC_HAS_CONTENTS | SEC_READONLY
8f78d0e9
KR		 6407 | SEC_ALLOC | SEC_LOAD);
6408
6409 subseg_set (save_seg, save_subseg);
8f78d0e9
KR		 6410}
6411
6412/* For ELF, this function serves one purpose: to setup the st_size
6413 field of STT_FUNC symbols. To do this, we need to scan the
dd2f509f
JL		 6414 call_info structure list, determining st_size in by taking the
6415 difference in the address of the beginning/end marker symbols. */
8f78d0e9
KR		 6416
6417void
6418elf_hppa_final_processing ()
6419{
6420 struct call_info *call_info_pointer;
6421
6422 for (call_info_pointer = call_info_root;
6423 call_info_pointer;
6424 call_info_pointer = call_info_pointer->ci_next)
6425 {
6426 elf_symbol_type *esym
c5e9ccd0 6427 = (elf_symbol_type *) call_info_pointer->start_symbol->bsym;
8f78d0e9
KR		 6428 esym->internal_elf_sym.st_size =
6429 S_GET_VALUE (call_info_pointer->end_symbol)
c5e9ccd0 6430 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
5cf4cd1b
KR		 6431 }
6432}
8f78d0e9 6433#endif
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