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* as.h: Replace flagseen with separate variables.
[deliverable/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"
3315c7c7 43#define UNWIND_SECTION_NAME ".PARISC.unwind"
8f78d0e9
KR		 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
8f78d0e9
KR		 62#endif
63
64#ifdef OBJ_SOM
65/* Names of various debugging spaces/subspaces. */
66#define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
67#define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
68#define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
69#define UNWIND_SECTION_NAME "$UNWIND$"
70
71/* Object file formats specify relocation types. */
72typedef int reloc_type;
73
eb91665b 74/* SOM objects can have both a version string and a copyright string. */
8f78d0e9 75#define obj_version obj_som_version
eb91665b 76#define obj_copyright obj_som_copyright
8f78d0e9 77
3b9a72c5
JL		 78/* Do not use space aliases. */
79#define USE_ALIASES 0
80
aa8b30ed
JL		 81/* How to generate a relocation. */
82#define hppa_gen_reloc_type hppa_som_gen_reloc_type
8f78d0e9
KR		 83
84/* Object file formats specify BFD symbol types. */
85typedef som_symbol_type obj_symbol_type;
5cf4cd1b
KR		 86#endif
87
8f78d0e9
KR		 88/* Various structures and types used internally in tc-hppa.c. */
89
90/* Unwind table and descriptor. FIXME: Sync this with GDB version. */
025b0302
ME		 91
92struct unwind_desc
93 {
94 unsigned int cannot_unwind:1;
95 unsigned int millicode:1;
96 unsigned int millicode_save_rest:1;
97 unsigned int region_desc:2;
98 unsigned int save_sr:2;
8f78d0e9
KR		 99 unsigned int entry_fr:4;
100 unsigned int entry_gr:5;
025b0302
ME		 101 unsigned int args_stored:1;
102 unsigned int call_fr:5;
103 unsigned int call_gr:5;
104 unsigned int save_sp:1;
105 unsigned int save_rp:1;
106 unsigned int save_rp_in_frame:1;
107 unsigned int extn_ptr_defined:1;
108 unsigned int cleanup_defined:1;
109
110 unsigned int hpe_interrupt_marker:1;
111 unsigned int hpux_interrupt_marker:1;
112 unsigned int reserved:3;
113 unsigned int frame_size:27;
114 };
115
025b0302
ME		 116struct unwind_table
117 {
8f78d0e9
KR		 118 /* Starting and ending offsets of the region described by
119 descriptor. */
120 unsigned int start_offset;
121 unsigned int end_offset;
122 struct unwind_desc descriptor;
025b0302
ME		 123 };
124
8f78d0e9
KR		 125/* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
126 control the entry and exit code they generate. It is also used in
127 creation of the correct stack unwind descriptors.
025b0302 128
8f78d0e9
KR		 129 NOTE: GAS does not support .enter and .leave for the generation of
130 prologues and epilogues. FIXME.
131
132 The fields in structure roughly correspond to the arguments available on the
133 .callinfo pseudo-op. */
025b0302
ME		 134
135struct call_info
136 {
8f78d0e9
KR		 137 /* The unwind descriptor being built. */
138 struct unwind_table ci_unwind;
139
140 /* Name of this function. */
141 symbolS *start_symbol;
142
143 /* (temporary) symbol used to mark the end of this function. */
144 symbolS *end_symbol;
145
8f78d0e9
KR		 146 /* Next entry in the chain. */
147 struct call_info *ci_next;
148 };
149
150/* Operand formats for FP instructions. Note not all FP instructions
151 allow all four formats to be used (for example fmpysub only allows
152 SGL and DBL). */
153typedef enum
154 {
155 SGL, DBL, ILLEGAL_FMT, QUAD
156 }
157fp_operand_format;
158
e75acd68
JL		 159/* This fully describes the symbol types which may be attached to
160 an EXPORT or IMPORT directive. Only SOM uses this formation
161 (ELF has no need for it). */
162typedef enum
c5e9ccd0
JL		 163 {
164 SYMBOL_TYPE_UNKNOWN,
165 SYMBOL_TYPE_ABSOLUTE,
166 SYMBOL_TYPE_CODE,
167 SYMBOL_TYPE_DATA,
168 SYMBOL_TYPE_ENTRY,
169 SYMBOL_TYPE_MILLICODE,
170 SYMBOL_TYPE_PLABEL,
171 SYMBOL_TYPE_PRI_PROG,
172 SYMBOL_TYPE_SEC_PROG,
173 }
174pa_symbol_type;
e75acd68 175
8f78d0e9
KR		 176/* This structure contains information needed to assemble
177 individual instructions. */
025b0302
ME		 178struct pa_it
179 {
8f78d0e9 180 /* Holds the opcode after parsing by pa_ip. */
025b0302 181 unsigned long opcode;
8f78d0e9
KR		 182
183 /* Holds an expression associated with the current instruction. */
025b0302 184 expressionS exp;
8f78d0e9
KR		 185
186 /* Does this instruction use PC-relative addressing. */
025b0302 187 int pcrel;
8f78d0e9
KR		 188
189 /* Floating point formats for operand1 and operand2. */
190 fp_operand_format fpof1;
191 fp_operand_format fpof2;
192
193 /* Holds the field selector for this instruction
194 (for example L%, LR%, etc). */
025b0302 195 long field_selector;
8f78d0e9
KR		 196
197 /* Holds any argument relocation bits associated with this
198 instruction. (instruction should be some sort of call). */
025b0302 199 long arg_reloc;
8f78d0e9
KR		 200
201 /* The format specification for this instruction. */
025b0302 202 int format;
8f78d0e9
KR		 203
204 /* The relocation (if any) associated with this instruction. */
205 reloc_type reloc;
025b0302
ME		 206 };
207
8f78d0e9 208/* PA-89 floating point registers are arranged like this:
025b0302 209
025b0302 210
8f78d0e9
KR		 211 +--------------+--------------+
212 | 0 or 16L | 16 or 16R |
213 +--------------+--------------+
214 | 1 or 17L | 17 or 17R |
215 +--------------+--------------+
216 | | |
217
218 . . .
219 . . .
220 . . .
221
222 | | |
223 +--------------+--------------+
224 | 14 or 30L | 30 or 30R |
225 +--------------+--------------+
226 | 15 or 31L | 31 or 31R |
227 +--------------+--------------+
228
229
230 The following is a version of pa_parse_number that
231 handles the L/R notation and returns the correct
232 value to put into the instruction register field.
233 The correct value to put into the instruction is
234 encoded in the structure 'pa_89_fp_reg_struct'. */
235
236struct pa_89_fp_reg_struct
237 {
238 /* The register number. */
239 char number_part;
240
241 /* L/R selector. */
242 char l_r_select;
243 };
244
245/* Additional information needed to build argument relocation stubs. */
246struct call_desc
247 {
248 /* The argument relocation specification. */
249 unsigned int arg_reloc;
250
251 /* Number of arguments. */
252 unsigned int arg_count;
253 };
254
255/* This structure defines an entry in the subspace dictionary
256 chain. */
257
258struct subspace_dictionary_chain
259 {
47f45d66
JL		 260 /* Nonzero if this space has been defined by the user code. */
261 unsigned int ssd_defined;
262
8f78d0e9
KR		 263 /* Name of this subspace. */
264 char *ssd_name;
265
266 /* GAS segment and subsegment associated with this subspace. */
267 asection *ssd_seg;
268 int ssd_subseg;
269
8f78d0e9
KR		 270 /* Next space in the subspace dictionary chain. */
271 struct subspace_dictionary_chain *ssd_next;
272 };
273
274typedef struct subspace_dictionary_chain ssd_chain_struct;
275
276/* This structure defines an entry in the subspace dictionary
277 chain. */
278
279struct space_dictionary_chain
280 {
8f78d0e9
KR		 281 /* Nonzero if this space has been defined by the user code or
282 as a default space. */
283 unsigned int sd_defined;
284
285 /* Nonzero if this spaces has been defined by the user code. */
286 unsigned int sd_user_defined;
287
8f78d0e9
KR		 288 /* The space number (or index). */
289 unsigned int sd_spnum;
290
8f78d0e9
KR		 291 /* The name of this subspace. */
292 char *sd_name;
293
294 /* GAS segment to which this subspace corresponds. */
295 asection *sd_seg;
296
297 /* Current subsegment number being used. */
298 int sd_last_subseg;
299
300 /* The chain of subspaces contained within this space. */
301 ssd_chain_struct *sd_subspaces;
302
303 /* The next entry in the space dictionary chain. */
304 struct space_dictionary_chain *sd_next;
305 };
306
307typedef struct space_dictionary_chain sd_chain_struct;
308
309/* Structure for previous label tracking. Needed so that alignments,
310 callinfo declarations, etc can be easily attached to a particular
311 label. */
312typedef struct label_symbol_struct
313 {
314 struct symbol *lss_label;
315 sd_chain_struct *lss_space;
316 struct label_symbol_struct *lss_next;
317 }
318label_symbol_struct;
319
320/* This structure defines attributes of the default subspace
321 dictionary entries. */
322
323struct default_subspace_dict
324 {
c5e9ccd0 325 /* Name of the subspace. */
8f78d0e9
KR		 326 char *name;
327
328 /* FIXME. Is this still needed? */
329 char defined;
330
331 /* Nonzero if this subspace is loadable. */
332 char loadable;
333
334 /* Nonzero if this subspace contains only code. */
335 char code_only;
336
337 /* Nonzero if this is a common subspace. */
338 char common;
339
340 /* Nonzero if this is a common subspace which allows symbols
341 to be multiply defined. */
342 char dup_common;
343
344 /* Nonzero if this subspace should be zero filled. */
345 char zero;
346
347 /* Sort key for this subspace. */
348 unsigned char sort;
349
350 /* Access control bits for this subspace. Can represent RWX access
351 as well as privilege level changes for gateways. */
352 int access;
353
354 /* Index of containing space. */
355 int space_index;
356
357 /* Alignment (in bytes) of this subspace. */
358 int alignment;
359
360 /* Quadrant within space where this subspace should be loaded. */
361 int quadrant;
362
363 /* An index into the default spaces array. */
364 int def_space_index;
365
366 /* An alias for this section (or NULL if no alias exists). */
367 char *alias;
368
369 /* Subsegment associated with this subspace. */
370 subsegT subsegment;
371 };
372
373/* This structure defines attributes of the default space
374 dictionary entries. */
375
376struct default_space_dict
377 {
378 /* Name of the space. */
379 char *name;
380
381 /* Space number. It is possible to identify spaces within
382 assembly code numerically! */
383 int spnum;
384
385 /* Nonzero if this space is loadable. */
386 char loadable;
387
388 /* Nonzero if this space is "defined". FIXME is still needed */
389 char defined;
390
391 /* Nonzero if this space can not be shared. */
392 char private;
393
394 /* Sort key for this space. */
395 unsigned char sort;
396
397 /* Segment associated with this space. */
398 asection *segment;
399
400 /* An alias for this section (or NULL if no alias exists). */
401 char *alias;
402 };
403
404/* Extra information needed to perform fixups (relocations) on the PA. */
405struct hppa_fix_struct
c5e9ccd0 406 {
8f78d0e9 407 /* The field selector. */
f2eed884 408 enum hppa_reloc_field_selector_type fx_r_field;
8f78d0e9
KR		 409
410 /* Type of fixup. */
411 int fx_r_type;
412
413 /* Format of fixup. */
414 int fx_r_format;
415
416 /* Argument relocation bits. */
417 long fx_arg_reloc;
418
419 /* The unwind descriptor associated with this fixup. */
420 char fx_unwind[8];
fca59f9d
JL		 421
422 /* The segment this fixup appears in. */
423 segT segment;
c5e9ccd0 424 };
8f78d0e9
KR		 425
426/* Structure to hold information about predefined registers. */
427
428struct pd_reg
c5e9ccd0
JL		 429 {
430 char *name;
431 int value;
432 };
8f78d0e9
KR		 433
434/* This structure defines the mapping from a FP condition string
435 to a condition number which can be recorded in an instruction. */
436struct fp_cond_map
c5e9ccd0
JL		 437 {
438 char *string;
439 int cond;
440 };
8f78d0e9
KR		 441
442/* This structure defines a mapping from a field selector
443 string to a field selector type. */
444struct selector_entry
c5e9ccd0
JL		 445 {
446 char *prefix;
447 int field_selector;
448 };
025b0302 449
8f78d0e9
KR		 450/* Prototypes for functions local to tc-hppa.c. */
451
452static fp_operand_format pa_parse_fp_format PARAMS ((char **s));
8f78d0e9
KR		 453static void pa_cons PARAMS ((int));
454static void pa_data PARAMS ((int));
8f78d0e9
KR		 455static void pa_float_cons PARAMS ((int));
456static void pa_fill PARAMS ((int));
457static void pa_lcomm PARAMS ((int));
458static void pa_lsym PARAMS ((int));
459static void pa_stringer PARAMS ((int));
460static void pa_text PARAMS ((int));
461static void pa_version PARAMS ((int));
462static int pa_parse_fp_cmp_cond PARAMS ((char **));
463static int get_expression PARAMS ((char *));
48153d49
JL		 464static int pa_get_absolute_expression PARAMS ((struct pa_it *, char **));
465static int evaluate_absolute PARAMS ((struct pa_it *));
8f78d0e9
KR		 466static unsigned int pa_build_arg_reloc PARAMS ((char *));
467static unsigned int pa_align_arg_reloc PARAMS ((unsigned int, unsigned int));
468static int pa_parse_nullif PARAMS ((char **));
469static int pa_parse_nonneg_cmpsub_cmpltr PARAMS ((char **, int));
470static int pa_parse_neg_cmpsub_cmpltr PARAMS ((char **, int));
471static int pa_parse_neg_add_cmpltr PARAMS ((char **, int));
472static int pa_parse_nonneg_add_cmpltr PARAMS ((char **, int));
473static void pa_block PARAMS ((int));
474static void pa_call PARAMS ((int));
475static void pa_call_args PARAMS ((struct call_desc *));
476static void pa_callinfo PARAMS ((int));
477static void pa_code PARAMS ((int));
478static void pa_comm PARAMS ((int));
479static void pa_copyright PARAMS ((int));
480static void pa_end PARAMS ((int));
481static void pa_enter PARAMS ((int));
482static void pa_entry PARAMS ((int));
483static void pa_equ PARAMS ((int));
484static void pa_exit PARAMS ((int));
485static void pa_export PARAMS ((int));
48153d49 486static void pa_type_args PARAMS ((symbolS *, int));
8f78d0e9
KR		 487static void pa_import PARAMS ((int));
488static void pa_label PARAMS ((int));
489static void pa_leave PARAMS ((int));
490static void pa_origin PARAMS ((int));
491static void pa_proc PARAMS ((int));
492static void pa_procend PARAMS ((int));
493static void pa_space PARAMS ((int));
494static void pa_spnum PARAMS ((int));
495static void pa_subspace PARAMS ((int));
496static void pa_param PARAMS ((int));
497static void pa_undefine_label PARAMS ((void));
c5e9ccd0 498static int need_89_opcode PARAMS ((struct pa_it *,
8f78d0e9
KR		 499 struct pa_89_fp_reg_struct *));
500static int pa_parse_number PARAMS ((char **, struct pa_89_fp_reg_struct *));
501static label_symbol_struct *pa_get_label PARAMS ((void));
de3ffc7a
JL		 502static sd_chain_struct *create_new_space PARAMS ((char *, int, int,
503 int, int, int,
8f78d0e9 504 asection *, int));
c5e9ccd0 505static ssd_chain_struct *create_new_subspace PARAMS ((sd_chain_struct *,
de3ffc7a
JL		 506 char *, int, int,
507 int, int, int,
508 int, int, int, int,
c5e9ccd0 509 int, asection *));
3b9a72c5 510static ssd_chain_struct *update_subspace PARAMS ((sd_chain_struct *,
de3ffc7a
JL		 511 char *, int, int, int,
512 int, int, int, int,
18c4f112
JL		 513 int, int, int,
514 asection *));
8f78d0e9 515static sd_chain_struct *is_defined_space PARAMS ((char *));
47f45d66 516static ssd_chain_struct *is_defined_subspace PARAMS ((char *));
8f78d0e9 517static sd_chain_struct *pa_segment_to_space PARAMS ((asection *));
c5e9ccd0
JL		 518static ssd_chain_struct *pa_subsegment_to_subspace PARAMS ((asection *,
519 subsegT));
8f78d0e9
KR		 520static sd_chain_struct *pa_find_space_by_number PARAMS ((int));
521static unsigned int pa_subspace_start PARAMS ((sd_chain_struct *, int));
8f78d0e9 522static void pa_ip PARAMS ((char *));
de3ffc7a 523static void fix_new_hppa PARAMS ((fragS *, int, int, symbolS *,
8f78d0e9 524 long, expressionS *, int,
f2eed884
JL		 525 bfd_reloc_code_real_type,
526 enum hppa_reloc_field_selector_type,
8f78d0e9 527 int, long, char *));
8f78d0e9
KR		 528static int is_end_of_statement PARAMS ((void));
529static int reg_name_search PARAMS ((char *));
530static int pa_chk_field_selector PARAMS ((char **));
531static int is_same_frag PARAMS ((fragS *, fragS *));
532static void pa_build_unwind_subspace PARAMS ((struct call_info *));
533static void process_exit PARAMS ((void));
534static sd_chain_struct *pa_parse_space_stmt PARAMS ((char *, int));
aa8b30ed 535static int log2 PARAMS ((int));
8f78d0e9
KR		 536static int pa_next_subseg PARAMS ((sd_chain_struct *));
537static unsigned int pa_stringer_aux PARAMS ((char *));
538static void pa_spaces_begin PARAMS ((void));
44c0de53 539static void hppa_elf_mark_end_of_function PARAMS ((void));
8f78d0e9
KR		 540
541/* File and gloally scoped variable declarations. */
542
543/* Root and final entry in the space chain. */
544static sd_chain_struct *space_dict_root;
545static sd_chain_struct *space_dict_last;
546
547/* The current space and subspace. */
548static sd_chain_struct *current_space;
549static ssd_chain_struct *current_subspace;
550
551/* Root of the call_info chain. */
552static struct call_info *call_info_root;
553
554/* The last call_info (for functions) structure
555 seen so it can be associated with fixups and
556 function labels. */
557static struct call_info *last_call_info;
558
c5e9ccd0 559/* The last call description (for actual calls). */
8f78d0e9
KR		 560static struct call_desc last_call_desc;
561
562/* Relaxation isn't supported for the PA yet. */
c5e9ccd0
JL		 563const relax_typeS md_relax_table[] =
564{0};
025b0302 565
c5e9ccd0 566/* Jumps are always the same size -- one instruction. */
025b0302
ME		 567int md_short_jump_size = 4;
568int md_long_jump_size = 4;
569
8f78d0e9
KR		 570/* handle of the OPCODE hash table */
571static struct hash_control *op_hash = NULL;
025b0302 572
8f78d0e9
KR		 573/* This array holds the chars that always start a comment. If the
574 pre-processor is disabled, these aren't very useful. */
575const char comment_chars[] = ";";
576
577/* Table of pseudo ops for the PA. FIXME -- how many of these
578 are now redundant with the overall GAS and the object file
579 dependent tables? */
580const pseudo_typeS md_pseudo_table[] =
581{
582 /* align pseudo-ops on the PA specify the actual alignment requested,
583 not the log2 of the requested alignment. */
d33ace2e
JL		 584 {"align", s_align_bytes, 8},
585 {"ALIGN", s_align_bytes, 8},
025b0302
ME		 586 {"block", pa_block, 1},
587 {"BLOCK", pa_block, 1},
588 {"blockz", pa_block, 0},
589 {"BLOCKZ", pa_block, 0},
590 {"byte", pa_cons, 1},
591 {"BYTE", pa_cons, 1},
592 {"call", pa_call, 0},
593 {"CALL", pa_call, 0},
594 {"callinfo", pa_callinfo, 0},
595 {"CALLINFO", pa_callinfo, 0},
596 {"code", pa_code, 0},
597 {"CODE", pa_code, 0},
598 {"comm", pa_comm, 0},
599 {"COMM", pa_comm, 0},
600 {"copyright", pa_copyright, 0},
601 {"COPYRIGHT", pa_copyright, 0},
602 {"data", pa_data, 0},
603 {"DATA", pa_data, 0},
025b0302
ME		 604 {"double", pa_float_cons, 'd'},
605 {"DOUBLE", pa_float_cons, 'd'},
606 {"end", pa_end, 0},
607 {"END", pa_end, 0},
608 {"enter", pa_enter, 0},
609 {"ENTER", pa_enter, 0},
610 {"entry", pa_entry, 0},
611 {"ENTRY", pa_entry, 0},
612 {"equ", pa_equ, 0},
613 {"EQU", pa_equ, 0},
614 {"exit", pa_exit, 0},
615 {"EXIT", pa_exit, 0},
616 {"export", pa_export, 0},
617 {"EXPORT", pa_export, 0},
618 {"fill", pa_fill, 0},
619 {"FILL", pa_fill, 0},
620 {"float", pa_float_cons, 'f'},
621 {"FLOAT", pa_float_cons, 'f'},
622 {"half", pa_cons, 2},
623 {"HALF", pa_cons, 2},
624 {"import", pa_import, 0},
625 {"IMPORT", pa_import, 0},
626 {"int", pa_cons, 4},
627 {"INT", pa_cons, 4},
628 {"label", pa_label, 0},
629 {"LABEL", pa_label, 0},
630 {"lcomm", pa_lcomm, 0},
631 {"LCOMM", pa_lcomm, 0},
632 {"leave", pa_leave, 0},
633 {"LEAVE", pa_leave, 0},
634 {"long", pa_cons, 4},
635 {"LONG", pa_cons, 4},
636 {"lsym", pa_lsym, 0},
637 {"LSYM", pa_lsym, 0},
aa8b30ed
JL		 638 {"octa", pa_cons, 16},
639 {"OCTA", pa_cons, 16},
025b0302
ME		 640 {"org", pa_origin, 0},
641 {"ORG", pa_origin, 0},
642 {"origin", pa_origin, 0},
643 {"ORIGIN", pa_origin, 0},
5cf4cd1b
KR		 644 {"param", pa_param, 0},
645 {"PARAM", pa_param, 0},
025b0302
ME		 646 {"proc", pa_proc, 0},
647 {"PROC", pa_proc, 0},
648 {"procend", pa_procend, 0},
649 {"PROCEND", pa_procend, 0},
aa8b30ed
JL		 650 {"quad", pa_cons, 8},
651 {"QUAD", pa_cons, 8},
8f78d0e9
KR		 652 {"reg", pa_equ, 1},
653 {"REG", pa_equ, 1},
025b0302
ME		 654 {"short", pa_cons, 2},
655 {"SHORT", pa_cons, 2},
656 {"single", pa_float_cons, 'f'},
657 {"SINGLE", pa_float_cons, 'f'},
658 {"space", pa_space, 0},
659 {"SPACE", pa_space, 0},
660 {"spnum", pa_spnum, 0},
661 {"SPNUM", pa_spnum, 0},
662 {"string", pa_stringer, 0},
663 {"STRING", pa_stringer, 0},
664 {"stringz", pa_stringer, 1},
665 {"STRINGZ", pa_stringer, 1},
666 {"subspa", pa_subspace, 0},
667 {"SUBSPA", pa_subspace, 0},
668 {"text", pa_text, 0},
669 {"TEXT", pa_text, 0},
670 {"version", pa_version, 0},
671 {"VERSION", pa_version, 0},
672 {"word", pa_cons, 4},
673 {"WORD", pa_cons, 4},
674 {NULL, 0, 0}
675};
676
677/* This array holds the chars that only start a comment at the beginning of
678 a line. If the line seems to have the form '# 123 filename'
8f78d0e9
KR		 679 .line and .file directives will appear in the pre-processed output.
680
681 Note that input_file.c hand checks for '#' at the beginning of the
025b0302 682 first line of the input file. This is because the compiler outputs
8f78d0e9
KR		 683 #NO_APP at the beginning of its output.
684
685 Also note that '/*' will always start a comment. */
025b0302
ME		 686const char line_comment_chars[] = "#";
687
8f78d0e9 688/* This array holds the characters which act as line separators. */
025b0302
ME		 689const char line_separator_chars[] = "!";
690
8f78d0e9 691/* Chars that can be used to separate mant from exp in floating point nums. */
025b0302
ME		 692const char EXP_CHARS[] = "eE";
693
8f78d0e9
KR		 694/* Chars that mean this number is a floating point constant.
695 As in 0f12.456 or 0d1.2345e12.
025b0302 696
8f78d0e9
KR		 697 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
698 changed in read.c. Ideally it shouldn't hae to know abou it at
699 all, but nothing is ideal around here. */
700const char FLT_CHARS[] = "rRsSfFdDxXpP";
025b0302 701
8f78d0e9 702static struct pa_it the_insn;
025b0302 703
8f78d0e9
KR		 704/* Points to the end of an expression just parsed by get_expressoin
705 and friends. FIXME. This shouldn't be handled with a file-global
706 variable. */
707static char *expr_end;
025b0302 708
8f78d0e9 709/* Nonzero if a .callinfo appeared within the current procedure. */
5cf4cd1b 710static int callinfo_found;
025b0302 711
8f78d0e9 712/* Nonzero if the assembler is currently within a .entry/.exit pair. */
5cf4cd1b 713static int within_entry_exit;
025b0302 714
8f78d0e9 715/* Nonzero if the assembler is currently within a procedure definition. */
5cf4cd1b 716static int within_procedure;
025b0302 717
8f78d0e9
KR		 718/* Handle on strucutre which keep track of the last symbol
719 seen in each subspace. */
720static label_symbol_struct *label_symbols_rootp = NULL;
025b0302 721
8f78d0e9
KR		 722/* Holds the last field selector. */
723static int hppa_field_selector;
025b0302 724
6868afe6 725/* A dummy bfd symbol so that all relocations have symbols of some kind. */
fca59f9d 726static symbolS *dummy_symbol;
6868afe6 727
8f78d0e9
KR		 728/* Nonzero if errors are to be printed. */
729static int print_errors = 1;
025b0302 730
8f78d0e9 731/* List of registers that are pre-defined:
025b0302 732
8f78d0e9
KR		 733 Each general register has one predefined name of the form
734 %r<REGNUM> which has the value <REGNUM>.
025b0302 735
8f78d0e9
KR		 736 Space and control registers are handled in a similar manner,
737 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
025b0302 738
8f78d0e9
KR		 739 Likewise for the floating point registers, but of the form
740 %fr<REGNUM>. Floating point registers have additional predefined
741 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
742 again have the value <REGNUM>.
025b0302 743
8f78d0e9 744 Many registers also have synonyms:
025b0302 745
8f78d0e9
KR		 746 %r26 - %r23 have %arg0 - %arg3 as synonyms
747 %r28 - %r29 have %ret0 - %ret1 as synonyms
748 %r30 has %sp as a synonym
d6e524f3
JL		 749 %r27 has %dp as a synonym
750 %r2 has %rp as a synonym
025b0302 751
8f78d0e9
KR		 752 Almost every control register has a synonym; they are not listed
753 here for brevity.
025b0302 754
8f78d0e9 755 The table is sorted. Suitable for searching by a binary search. */
025b0302 756
8f78d0e9 757static const struct pd_reg pre_defined_registers[] =
025b0302 758{
8f78d0e9
KR		 759 {"%arg0", 26},
760 {"%arg1", 25},
761 {"%arg2", 24},
762 {"%arg3", 23},
763 {"%cr0", 0},
764 {"%cr10", 10},
765 {"%cr11", 11},
766 {"%cr12", 12},
767 {"%cr13", 13},
768 {"%cr14", 14},
769 {"%cr15", 15},
770 {"%cr16", 16},
771 {"%cr17", 17},
772 {"%cr18", 18},
773 {"%cr19", 19},
774 {"%cr20", 20},
775 {"%cr21", 21},
776 {"%cr22", 22},
777 {"%cr23", 23},
778 {"%cr24", 24},
779 {"%cr25", 25},
780 {"%cr26", 26},
781 {"%cr27", 27},
782 {"%cr28", 28},
783 {"%cr29", 29},
784 {"%cr30", 30},
785 {"%cr31", 31},
786 {"%cr8", 8},
787 {"%cr9", 9},
d6e524f3 788 {"%dp", 27},
8f78d0e9
KR		 789 {"%eiem", 15},
790 {"%eirr", 23},
791 {"%fr0", 0},
4047ff1d
JL		 792 {"%fr0l", 0},
793 {"%fr0r", 0},
8f78d0e9
KR		 794 {"%fr1", 1},
795 {"%fr10", 10},
4047ff1d
JL		 796 {"%fr10l", 10},
797 {"%fr10r", 10},
8f78d0e9 798 {"%fr11", 11},
4047ff1d
JL		 799 {"%fr11l", 11},
800 {"%fr11r", 11},
8f78d0e9 801 {"%fr12", 12},
4047ff1d
JL		 802 {"%fr12l", 12},
803 {"%fr12r", 12},
8f78d0e9 804 {"%fr13", 13},
4047ff1d
JL		 805 {"%fr13l", 13},
806 {"%fr13r", 13},
8f78d0e9 807 {"%fr14", 14},
4047ff1d
JL		 808 {"%fr14l", 14},
809 {"%fr14r", 14},
8f78d0e9 810 {"%fr15", 15},
4047ff1d
JL		 811 {"%fr15l", 15},
812 {"%fr15r", 15},
8f78d0e9 813 {"%fr16", 16},
4047ff1d
JL		 814 {"%fr16l", 16},
815 {"%fr16r", 16},
8f78d0e9 816 {"%fr17", 17},
4047ff1d
JL		 817 {"%fr17l", 17},
818 {"%fr17r", 17},
8f78d0e9 819 {"%fr18", 18},
4047ff1d
JL		 820 {"%fr18l", 18},
821 {"%fr18r", 18},
8f78d0e9 822 {"%fr19", 19},
4047ff1d
JL		 823 {"%fr19l", 19},
824 {"%fr19r", 19},
825 {"%fr1l", 1},
826 {"%fr1r", 1},
8f78d0e9
KR		 827 {"%fr2", 2},
828 {"%fr20", 20},
4047ff1d
JL		 829 {"%fr20l", 20},
830 {"%fr20r", 20},
8f78d0e9 831 {"%fr21", 21},
4047ff1d
JL		 832 {"%fr21l", 21},
833 {"%fr21r", 21},
8f78d0e9 834 {"%fr22", 22},
4047ff1d
JL		 835 {"%fr22l", 22},
836 {"%fr22r", 22},
8f78d0e9 837 {"%fr23", 23},
4047ff1d
JL		 838 {"%fr23l", 23},
839 {"%fr23r", 23},
8f78d0e9 840 {"%fr24", 24},
4047ff1d
JL		 841 {"%fr24l", 24},
842 {"%fr24r", 24},
8f78d0e9 843 {"%fr25", 25},
4047ff1d
JL		 844 {"%fr25l", 25},
845 {"%fr25r", 25},
8f78d0e9 846 {"%fr26", 26},
4047ff1d
JL		 847 {"%fr26l", 26},
848 {"%fr26r", 26},
8f78d0e9 849 {"%fr27", 27},
4047ff1d
JL		 850 {"%fr27l", 27},
851 {"%fr27r", 27},
8f78d0e9 852 {"%fr28", 28},
4047ff1d
JL		 853 {"%fr28l", 28},
854 {"%fr28r", 28},
8f78d0e9 855 {"%fr29", 29},
4047ff1d
JL		 856 {"%fr29l", 29},
857 {"%fr29r", 29},
858 {"%fr2l", 2},
859 {"%fr2r", 2},
8f78d0e9
KR		 860 {"%fr3", 3},
861 {"%fr30", 30},
4047ff1d
JL		 862 {"%fr30l", 30},
863 {"%fr30r", 30},
8f78d0e9 864 {"%fr31", 31},
4047ff1d
JL		 865 {"%fr31l", 31},
866 {"%fr31r", 31},
867 {"%fr3l", 3},
868 {"%fr3r", 3},
8f78d0e9 869 {"%fr4", 4},
4047ff1d
JL		 870 {"%fr4l", 4},
871 {"%fr4r", 4},
8f78d0e9 872 {"%fr5", 5},
4047ff1d
JL		 873 {"%fr5l", 5},
874 {"%fr5r", 5},
8f78d0e9 875 {"%fr6", 6},
4047ff1d
JL		 876 {"%fr6l", 6},
877 {"%fr6r", 6},
8f78d0e9 878 {"%fr7", 7},
4047ff1d
JL		 879 {"%fr7l", 7},
880 {"%fr7r", 7},
8f78d0e9 881 {"%fr8", 8},
4047ff1d
JL		 882 {"%fr8l", 8},
883 {"%fr8r", 8},
8f78d0e9 884 {"%fr9", 9},
4047ff1d
JL		 885 {"%fr9l", 9},
886 {"%fr9r", 9},
8f78d0e9
KR		 887 {"%hta", 25},
888 {"%iir", 19},
889 {"%ior", 21},
890 {"%ipsw", 22},
891 {"%isr", 20},
892 {"%itmr", 16},
893 {"%iva", 14},
894 {"%pcoq", 18},
895 {"%pcsq", 17},
896 {"%pidr1", 8},
897 {"%pidr2", 9},
898 {"%pidr3", 12},
899 {"%pidr4", 13},
900 {"%ppda", 24},
901 {"%r0", 0},
902 {"%r1", 1},
903 {"%r10", 10},
904 {"%r11", 11},
905 {"%r12", 12},
906 {"%r13", 13},
907 {"%r14", 14},
908 {"%r15", 15},
909 {"%r16", 16},
910 {"%r17", 17},
911 {"%r18", 18},
912 {"%r19", 19},
913 {"%r2", 2},
914 {"%r20", 20},
915 {"%r21", 21},
916 {"%r22", 22},
917 {"%r23", 23},
918 {"%r24", 24},
919 {"%r25", 25},
920 {"%r26", 26},
921 {"%r27", 27},
922 {"%r28", 28},
923 {"%r29", 29},
924 {"%r3", 3},
925 {"%r30", 30},
926 {"%r31", 31},
927 {"%r4", 4},
8f78d0e9 928 {"%r5", 5},
8f78d0e9 929 {"%r6", 6},
8f78d0e9 930 {"%r7", 7},
8f78d0e9 931 {"%r8", 8},
8f78d0e9 932 {"%r9", 9},
8f78d0e9
KR		 933 {"%rctr", 0},
934 {"%ret0", 28},
935 {"%ret1", 29},
d6e524f3 936 {"%rp", 2},
8f78d0e9
KR		 937 {"%sar", 11},
938 {"%sp", 30},
939 {"%sr0", 0},
940 {"%sr1", 1},
941 {"%sr2", 2},
942 {"%sr3", 3},
943 {"%sr4", 4},
944 {"%sr5", 5},
945 {"%sr6", 6},
946 {"%sr7", 7},
947 {"%tr0", 24},
948 {"%tr1", 25},
949 {"%tr2", 26},
950 {"%tr3", 27},
951 {"%tr4", 28},
952 {"%tr5", 29},
953 {"%tr6", 30},
954 {"%tr7", 31}
955};
025b0302 956
8f78d0e9
KR		 957/* This table is sorted by order of the length of the string. This is
958 so we check for <> before we check for <. If we had a <> and checked
959 for < first, we would get a false match. */
c5e9ccd0 960static const struct fp_cond_map fp_cond_map[] =
8f78d0e9
KR		 961{
962 {"false?", 0},
963 {"false", 1},
964 {"true?", 30},
965 {"true", 31},
966 {"!<=>", 3},
967 {"!?>=", 8},
968 {"!?<=", 16},
969 {"!<>", 7},
970 {"!>=", 11},
971 {"!?>", 12},
972 {"?<=", 14},
973 {"!<=", 19},
974 {"!?<", 20},
975 {"?>=", 22},
976 {"!?=", 24},
977 {"!=t", 27},
978 {"<=>", 29},
979 {"=t", 5},
980 {"?=", 6},
981 {"?<", 10},
982 {"<=", 13},
983 {"!>", 15},
984 {"?>", 18},
985 {">=", 21},
986 {"!<", 23},
987 {"<>", 25},
988 {"!=", 26},
989 {"!?", 28},
990 {"?", 2},
991 {"=", 4},
992 {"<", 9},
993 {">", 17}
994};
025b0302 995
8f78d0e9
KR		 996static const struct selector_entry selector_table[] =
997{
4047ff1d
JL		 998 {"f", e_fsel},
999 {"l", e_lsel},
1000 {"ld", e_ldsel},
1001 {"lp", e_lpsel},
1002 {"lr", e_lrsel},
1003 {"ls", e_lssel},
1004 {"lt", e_ltsel},
1005 {"p", e_psel},
1006 {"r", e_rsel},
1007 {"rd", e_rdsel},
1008 {"rp", e_rpsel},
1009 {"rr", e_rrsel},
1010 {"rs", e_rssel},
1011 {"rt", e_rtsel},
1012 {"t", e_tsel},
8f78d0e9 1013};
025b0302 1014
8f78d0e9 1015/* default space and subspace dictionaries */
025b0302 1016
8f78d0e9
KR		 1017#define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1018#define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
025b0302 1019
8f78d0e9
KR		 1020/* pre-defined subsegments (subspaces) for the HPPA. */
1021#define SUBSEG_CODE 0
1022#define SUBSEG_DATA 0
1023#define SUBSEG_LIT 1
1024#define SUBSEG_BSS 2
1025#define SUBSEG_UNWIND 3
1026#define SUBSEG_GDB_STRINGS 0
1027#define SUBSEG_GDB_SYMBOLS 1
025b0302 1028
8f78d0e9 1029static struct default_subspace_dict pa_def_subspaces[] =
025b0302 1030{
aa8b30ed
JL		 1031 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_CODE},
1032 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, ".data", SUBSEG_DATA},
1033 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_LIT},
1034 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, ".bss", SUBSEG_BSS},
31a385d1 1035#ifdef OBJ_ELF
3315c7c7 1036 {"$UNWIND$", 1, 1, 0, 0, 0, 0, 64, 0x2c, 0, 4, 0, 0, ".PARISC.unwind", SUBSEG_UNWIND},
31a385d1 1037#endif
8f78d0e9
KR		 1038 {NULL, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1039};
025b0302 1040
8f78d0e9
KR		 1041static struct default_space_dict pa_def_spaces[] =
1042{
aa8b30ed
JL		 1043 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL, ".text"},
1044 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL, ".data"},
8f78d0e9
KR		 1045 {NULL, 0, 0, 0, 0, 0, ASEC_NULL, NULL}
1046};
025b0302 1047
8f78d0e9
KR		 1048/* Misc local definitions used by the assembler. */
1049
1050/* Return nonzero if the string pointed to by S potentially represents
1051 a right or left half of a FP register */
1052#define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1053#define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1054
1055/* These macros are used to maintain spaces/subspaces. */
1056#define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1057#define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
8f78d0e9 1058#define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
8f78d0e9 1059#define SPACE_NAME(space_chain) (space_chain)->sd_name
8f78d0e9 1060
47f45d66 1061#define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
8f78d0e9
KR		 1062#define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1063
48153d49
JL		 1064/* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1065 main loop after insertion. */
1066
1067#define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1068 { \
1069 ((OPCODE) |= (FIELD) << (START)); \
1070 continue; \
1071 }
1072
1073/* Simple range checking for FIELD againt HIGH and LOW bounds.
1074 IGNORE is used to suppress the error message. */
1075
1076#define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1077 { \
1078 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1079 { \
1080 if (! IGNORE) \
1081 as_bad ("Field out of range [%d..%d] (%d).", (LOW), (HIGH), \
1082 (int) (FIELD));\
1083 break; \
1084 } \
1085 }
c5e9ccd0 1086
8f78d0e9
KR		 1087#define is_DP_relative(exp) \
1088 ((exp).X_op == O_subtract \
1089 && strcmp((exp).X_op_symbol->bsym->name, "$global$") == 0)
1090
1091#define is_PC_relative(exp) \
1092 ((exp).X_op == O_subtract \
1093 && strcmp((exp).X_op_symbol->bsym->name, "$PIC_pcrel$0") == 0)
1094
8f78d0e9
KR		 1095/* Actual functions to implement the PA specific code for the assembler. */
1096
1097/* Returns a pointer to the label_symbol_struct for the current space.
1098 or NULL if no label_symbol_struct exists for the current space. */
1099
1100static label_symbol_struct *
1101pa_get_label ()
1102{
1103 label_symbol_struct *label_chain;
3b9a72c5 1104 sd_chain_struct *space_chain = current_space;
025b0302 1105
8f78d0e9
KR		 1106 for (label_chain = label_symbols_rootp;
1107 label_chain;
1108 label_chain = label_chain->lss_next)
1109 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1110 return label_chain;
025b0302 1111
8f78d0e9
KR		 1112 return NULL;
1113}
025b0302 1114
8f78d0e9
KR		 1115/* Defines a label for the current space. If one is already defined,
1116 this function will replace it with the new label. */
025b0302 1117
8f78d0e9
KR		 1118void
1119pa_define_label (symbol)
1120 symbolS *symbol;
1121{
1122 label_symbol_struct *label_chain = pa_get_label ();
3b9a72c5 1123 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1124
1125 if (label_chain)
1126 label_chain->lss_label = symbol;
1127 else
1128 {
1129 /* Create a new label entry and add it to the head of the chain. */
1130 label_chain
1131 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1132 label_chain->lss_label = symbol;
1133 label_chain->lss_space = space_chain;
1134 label_chain->lss_next = NULL;
1135
1136 if (label_symbols_rootp)
1137 label_chain->lss_next = label_symbols_rootp;
1138
1139 label_symbols_rootp = label_chain;
1140 }
1141}
1142
1143/* Removes a label definition for the current space.
1144 If there is no label_symbol_struct entry, then no action is taken. */
1145
1146static void
1147pa_undefine_label ()
1148{
1149 label_symbol_struct *label_chain;
1150 label_symbol_struct *prev_label_chain = NULL;
3b9a72c5 1151 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1152
1153 for (label_chain = label_symbols_rootp;
1154 label_chain;
1155 label_chain = label_chain->lss_next)
1156 {
1157 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1158 {
1159 /* Remove the label from the chain and free its memory. */
1160 if (prev_label_chain)
1161 prev_label_chain->lss_next = label_chain->lss_next;
1162 else
1163 label_symbols_rootp = label_chain->lss_next;
1164
1165 free (label_chain);
1166 break;
1167 }
1168 prev_label_chain = label_chain;
1169 }
1170}
1171
1172
1173/* An HPPA-specific version of fix_new. This is required because the HPPA
1174 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1175 results in the creation of an instance of an hppa_fix_struct. An
1176 hppa_fix_struct stores the extra information along with a pointer to the
aa8b30ed
JL		 1177 original fixS. This is attached to the original fixup via the
1178 tc_fix_data field. */
8f78d0e9
KR		 1179
1180static void
1181fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
1182 r_type, r_field, r_format, arg_reloc, unwind_desc)
1183 fragS *frag;
1184 int where;
de3ffc7a 1185 int size;
8f78d0e9
KR		 1186 symbolS *add_symbol;
1187 long offset;
1188 expressionS *exp;
1189 int pcrel;
1190 bfd_reloc_code_real_type r_type;
f2eed884 1191 enum hppa_reloc_field_selector_type r_field;
8f78d0e9
KR		 1192 int r_format;
1193 long arg_reloc;
1194 char *unwind_desc;
1195{
1196 fixS *new_fix;
1197
1198 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
c5e9ccd0 1199 obstack_alloc (&notes, sizeof (struct hppa_fix_struct));
8f78d0e9
KR		 1200
1201 if (exp != NULL)
1202 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1203 else
1204 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
fb338f1d 1205 new_fix->tc_fix_data = (void *) hppa_fix;
8f78d0e9
KR		 1206 hppa_fix->fx_r_type = r_type;
1207 hppa_fix->fx_r_field = r_field;
1208 hppa_fix->fx_r_format = r_format;
1209 hppa_fix->fx_arg_reloc = arg_reloc;
fca59f9d 1210 hppa_fix->segment = now_seg;
8f78d0e9 1211 if (unwind_desc)
ff852e11
JL		 1212 {
1213 bcopy (unwind_desc, hppa_fix->fx_unwind, 8);
025b0302 1214
ff852e11 1215 /* If necessary call BFD backend function to attach the
c5e9ccd0
JL		 1216 unwind bits to the target dependent parts of a BFD symbol.
1217 Yuk. */
ff852e11
JL		 1218#ifdef obj_attach_unwind_info
1219 obj_attach_unwind_info (add_symbol->bsym, unwind_desc);
1220#endif
1221 }
25989392
JL		 1222
1223 /* foo-$global$ is used to access non-automatic storage. $global$
1224 is really just a marker and has served its purpose, so eliminate
1225 it now so as not to confuse write.c. */
81413fa2
JL		 1226 if (new_fix->fx_subsy
1227 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
25989392 1228 new_fix->fx_subsy = NULL;
025b0302
ME		 1229}
1230
1231/* Parse a .byte, .word, .long expression for the HPPA. Called by
1232 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1233
025b0302
ME		 1234void
1235parse_cons_expression_hppa (exp)
1236 expressionS *exp;
1237{
1238 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
5cf4cd1b 1239 expression (exp);
025b0302
ME		 1240}
1241
1242/* This fix_new is called by cons via TC_CONS_FIX_NEW.
1243 hppa_field_selector is set by the parse_cons_expression_hppa. */
1244
1245void
1246cons_fix_new_hppa (frag, where, size, exp)
8f78d0e9
KR		 1247 fragS *frag;
1248 int where;
1249 int size;
1250 expressionS *exp;
025b0302 1251{
4047ff1d 1252 unsigned int rel_type;
025b0302
ME		 1253
1254 if (is_DP_relative (*exp))
4047ff1d 1255 rel_type = R_HPPA_GOTOFF;
025b0302 1256 else
4047ff1d 1257 rel_type = R_HPPA;
025b0302
ME		 1258
1259 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
8f78d0e9 1260 as_warn ("Invalid field selector. Assuming F%%.");
025b0302 1261
5cf4cd1b 1262 fix_new_hppa (frag, where, size,
4047ff1d 1263 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
025b0302 1264 hppa_field_selector, 32, 0, (char *) 0);
1cc248d2
JL		 1265
1266 /* Reset field selector to its default state. */
1267 hppa_field_selector = 0;
025b0302
ME		 1268}
1269
1270/* This function is called once, at assembler startup time. It should
1271 set up all the tables, etc. that the MD part of the assembler will need. */
8f78d0e9 1272
025b0302
ME		 1273void
1274md_begin ()
1275{
18c4f112 1276 const char *retval = NULL;
025b0302 1277 int lose = 0;
8f78d0e9 1278 unsigned int i = 0;
025b0302
ME		 1279
1280 last_call_info = NULL;
1281 call_info_root = NULL;
1282
13925cef
JL		 1283 /* Folding of text and data segments fails miserably on the PA.
1284 Warn user and disable "-R" option. */
def66e24 1285 if (flag_readonly_data_in_text)
d56f45f5
JL		 1286 {
1287 as_warn ("-R option not supported on this target.");
def66e24 1288 flag_readonly_data_in_text = 0;
d56f45f5 1289 }
13925cef 1290
025b0302
ME		 1291 pa_spaces_begin ();
1292
1293 op_hash = hash_new ();
025b0302
ME		 1294
1295 while (i < NUMOPCODES)
1296 {
1297 const char *name = pa_opcodes[i].name;
c5e9ccd0 1298 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
8f78d0e9 1299 if (retval != NULL && *retval != '\0')
025b0302 1300 {
8f78d0e9 1301 as_fatal ("Internal error: can't hash `%s': %s\n", name, retval);
025b0302
ME		 1302 lose = 1;
1303 }
1304 do
1305 {
c5e9ccd0 1306 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
8f78d0e9 1307 != pa_opcodes[i].match)
025b0302
ME		 1308 {
1309 fprintf (stderr, "internal error: losing opcode: `%s' \"%s\"\n",
1310 pa_opcodes[i].name, pa_opcodes[i].args);
1311 lose = 1;
1312 }
1313 ++i;
1314 }
8f78d0e9 1315 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
025b0302
ME		 1316 }
1317
1318 if (lose)
1319 as_fatal ("Broken assembler. No assembly attempted.");
3b9a72c5
JL		 1320
1321 /* SOM will change text_section. To make sure we never put
1322 anything into the old one switch to the new one now. */
1323 subseg_set (text_section, 0);
8f78d0e9 1324
6868afe6 1325 dummy_symbol = symbol_find_or_make ("L$dummy");
fca59f9d 1326 S_SET_SEGMENT (dummy_symbol, text_section);
025b0302
ME		 1327}
1328
8f78d0e9 1329/* Assemble a single instruction storing it into a frag. */
025b0302
ME		 1330void
1331md_assemble (str)
1332 char *str;
1333{
8f78d0e9 1334 char *to;
025b0302 1335
8f78d0e9 1336 /* The had better be something to assemble. */
025b0302 1337 assert (str);
8f78d0e9 1338
4047ff1d
JL		 1339 /* If we are within a procedure definition, make sure we've
1340 defined a label for the procedure; handle case where the
86066d06
JL		 1341 label was defined after the .PROC directive.
1342
1343 Note there's not need to diddle with the segment or fragment
1344 for the label symbol in this case. We have already switched
1345 into the new $CODE$ subspace at this point. */
4047ff1d
JL		 1346 if (within_procedure && last_call_info->start_symbol == NULL)
1347 {
1348 label_symbol_struct *label_symbol = pa_get_label ();
1349
1350 if (label_symbol)
1351 {
1352 if (label_symbol->lss_label)
1353 {
1354 last_call_info->start_symbol = label_symbol->lss_label;
1355 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
86066d06
JL		 1356#ifdef OBJ_SOM
1357 /* Also handle allocation of a fixup to hold the unwind
1358 information when the label appears after the proc/procend. */
1359 if (within_entry_exit)
1360 {
1361 char *where = frag_more (0);
1362
1363 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
1364 last_call_info->start_symbol, (offsetT) 0, NULL,
1365 0, R_HPPA_ENTRY, e_fsel, 0, 0,
1366 (char *) &last_call_info->ci_unwind.descriptor);
1367 }
1368#endif
4047ff1d
JL		 1369 }
1370 else
1371 as_bad ("Missing function name for .PROC (corrupted label chain)");
1372 }
1373 else
1374 as_bad ("Missing function name for .PROC");
1375 }
1376
8f78d0e9 1377 /* Assemble the instruction. Results are saved into "the_insn". */
025b0302 1378 pa_ip (str);
025b0302 1379
8f78d0e9
KR		 1380 /* Get somewhere to put the assembled instrution. */
1381 to = frag_more (4);
025b0302 1382
8f78d0e9
KR		 1383 /* Output the opcode. */
1384 md_number_to_chars (to, the_insn.opcode, 4);
025b0302 1385
8f78d0e9 1386 /* If necessary output more stuff. */
aa8b30ed 1387 if (the_insn.reloc != R_HPPA_NONE)
8f78d0e9
KR		 1388 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1389 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1390 the_insn.reloc, the_insn.field_selector,
1391 the_insn.format, the_insn.arg_reloc, NULL);
8f78d0e9 1392}
025b0302 1393
8f78d0e9 1394/* Do the real work for assembling a single instruction. Store results
dd2f509f 1395 into the global "the_insn" variable. */
025b0302
ME		 1396
1397static void
1398pa_ip (str)
1399 char *str;
1400{
1401 char *error_message = "";
8f78d0e9 1402 char *s, c, *argstart, *name, *save_s;
025b0302 1403 const char *args;
025b0302
ME		 1404 int match = FALSE;
1405 int comma = 0;
48153d49
JL		 1406 int cmpltr, nullif, flag, cond, num;
1407 unsigned long opcode;
8f78d0e9 1408 struct pa_opcode *insn;
025b0302 1409
8f78d0e9 1410 /* Skip to something interesting. */
025b0302
ME		 1411 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1412 ;
8f78d0e9 1413
025b0302
ME		 1414 switch (*s)
1415 {
1416
1417 case '\0':
1418 break;
1419
1420 case ',':
1421 comma = 1;
1422
8f78d0e9 1423 /*FALLTHROUGH */
025b0302
ME		 1424
1425 case ' ':
1426 *s++ = '\0';
1427 break;
1428
1429 default:
1430 as_bad ("Unknown opcode: `%s'", str);
1431 exit (1);
1432 }
1433
1434 save_s = str;
1435
8f78d0e9 1436 /* Convert everything into lower case. */
025b0302
ME		 1437 while (*save_s)
1438 {
1439 if (isupper (*save_s))
1440 *save_s = tolower (*save_s);
1441 save_s++;
1442 }
1443
8f78d0e9 1444 /* Look up the opcode in the has table. */
025b0302
ME		 1445 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1446 {
1447 as_bad ("Unknown opcode: `%s'", str);
1448 return;
1449 }
8f78d0e9 1450
025b0302
ME		 1451 if (comma)
1452 {
1453 *--s = ',';
1454 }
8f78d0e9
KR		 1455
1456 /* Mark the location where arguments for the instruction start, then
1457 start processing them. */
1458 argstart = s;
025b0302
ME		 1459 for (;;)
1460 {
8f78d0e9 1461 /* Do some initialization. */
025b0302
ME		 1462 opcode = insn->match;
1463 bzero (&the_insn, sizeof (the_insn));
8f78d0e9 1464
025b0302 1465 the_insn.reloc = R_HPPA_NONE;
8f78d0e9
KR		 1466
1467 /* Build the opcode, checking as we go to make
1468 sure that the operands match. */
025b0302
ME		 1469 for (args = insn->args;; ++args)
1470 {
025b0302
ME		 1471 switch (*args)
1472 {
1473
8f78d0e9
KR		 1474 /* End of arguments. */
1475 case '\0':
025b0302 1476 if (*s == '\0')
8f78d0e9 1477 match = TRUE;
025b0302
ME		 1478 break;
1479
1480 case '+':
1481 if (*s == '+')
1482 {
1483 ++s;
1484 continue;
1485 }
1486 if (*s == '-')
8f78d0e9 1487 continue;
025b0302
ME		 1488 break;
1489
8f78d0e9
KR		 1490 /* These must match exactly. */
1491 case '(':
025b0302
ME		 1492 case ')':
1493 case ',':
1494 case ' ':
1495 if (*s++ == *args)
1496 continue;
1497 break;
1498
8f78d0e9
KR		 1499 /* Handle a 5 bit register or control register field at 10. */
1500 case 'b':
1501 case '^':
48153d49
JL		 1502 num = pa_parse_number (&s, 0);
1503 CHECK_FIELD (num, 31, 0, 0);
1504 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 1505
1506 /* Handle a 5 bit register field at 15. */
1507 case 'x':
48153d49
JL		 1508 num = pa_parse_number (&s, 0);
1509 CHECK_FIELD (num, 31, 0, 0);
1510 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
5cf4cd1b 1511
8f78d0e9
KR		 1512 /* Handle a 5 bit register field at 31. */
1513 case 'y':
1514 case 't':
48153d49
JL		 1515 num = pa_parse_number (&s, 0);
1516 CHECK_FIELD (num, 31, 0, 0);
1517 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 1518
1519 /* Handle a 5 bit field length at 31. */
1520 case 'T':
48153d49
JL		 1521 num = pa_get_absolute_expression (&the_insn, &s);
1522 s = expr_end;
1523 CHECK_FIELD (num, 32, 1, 0);
1524 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
8f78d0e9
KR		 1525
1526 /* Handle a 5 bit immediate at 15. */
1527 case '5':
48153d49
JL		 1528 num = pa_get_absolute_expression (&the_insn, &s);
1529 s = expr_end;
1530 CHECK_FIELD (num, 15, -16, 0);
1531 low_sign_unext (num, 5, &num);
1532 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1533
48153d49
JL		 1534 /* Handle a 5 bit immediate at 31. */
1535 case 'V':
1536 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 1537 s = expr_end;
48153d49 1538 CHECK_FIELD (num, 15, -16, 0)
c5e9ccd0 1539 low_sign_unext (num, 5, &num);
48153d49
JL		 1540 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1541
1542 /* Handle an unsigned 5 bit immediate at 31. */
1543 case 'r':
1544 num = pa_get_absolute_expression (&the_insn, &s);
1545 s = expr_end;
1546 CHECK_FIELD (num, 31, 0, 0);
1547 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1548
1549 /* Handle an unsigned 5 bit immediate at 15. */
1550 case 'R':
1551 num = pa_get_absolute_expression (&the_insn, &s);
1552 s = expr_end;
1553 CHECK_FIELD (num, 31, 0, 0);
1554 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1555
8f78d0e9
KR		 1556 /* Handle a 2 bit space identifier at 17. */
1557 case 's':
48153d49
JL		 1558 num = pa_parse_number (&s, 0);
1559 CHECK_FIELD (num, 3, 0, 1);
1560 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
8f78d0e9
KR		 1561
1562 /* Handle a 3 bit space identifier at 18. */
1563 case 'S':
48153d49
JL		 1564 num = pa_parse_number (&s, 0);
1565 CHECK_FIELD (num, 7, 0, 1);
1566 dis_assemble_3 (num, &num);
1567 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 1568
1569 /* Handle a completer for an indexing load or store. */
1570 case 'c':
48153d49
JL		 1571 {
1572 int uu = 0;
1573 int m = 0;
1574 int i = 0;
1575 while (*s == ',' && i < 2)
1576 {
1577 s++;
1578 if (strncasecmp (s, "sm", 2) == 0)
1579 {
1580 uu = 1;
1581 m = 1;
1582 s++;
1583 i++;
1584 }
1585 else if (strncasecmp (s, "m", 1) == 0)
025b0302 1586 m = 1;
48153d49
JL		 1587 else if (strncasecmp (s, "s", 1) == 0)
1588 uu = 1;
1589 else
1590 as_bad ("Invalid Indexed Load Completer.");
1591 s++;
1592 i++;
1593 }
1594 if (i > 2)
1595 as_bad ("Invalid Indexed Load Completer Syntax.");
1596 opcode |= m << 5;
1597 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
1598 }
8f78d0e9
KR		 1599
1600 /* Handle a short load/store completer. */
1601 case 'C':
48153d49
JL		 1602 {
1603 int a = 0;
1604 int m = 0;
1605 if (*s == ',')
1606 {
1607 s++;
1608 if (strncasecmp (s, "ma", 2) == 0)
1609 {
1610 a = 0;
1611 m = 1;
1612 }
1613 else if (strncasecmp (s, "mb", 2) == 0)
1614 {
1615 a = 1;
1616 m = 1;
1617 }
1618 else
1619 as_bad ("Invalid Short Load/Store Completer.");
1620 s += 2;
1621 }
1622 opcode |= m << 5;
1623 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1624 }
8f78d0e9
KR		 1625
1626 /* Handle a stbys completer. */
1627 case 'Y':
48153d49
JL		 1628 {
1629 int a = 0;
1630 int m = 0;
1631 int i = 0;
1632 while (*s == ',' && i < 2)
1633 {
1634 s++;
1635 if (strncasecmp (s, "m", 1) == 0)
1636 m = 1;
1637 else if (strncasecmp (s, "b", 1) == 0)
1638 a = 0;
1639 else if (strncasecmp (s, "e", 1) == 0)
1640 a = 1;
1641 else
1642 as_bad ("Invalid Store Bytes Short Completer");
1643 s++;
1644 i++;
1645 }
1646 if (i > 2)
1647 as_bad ("Invalid Store Bytes Short Completer");
1648 opcode |= m << 5;
1649 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1650 }
8f78d0e9
KR		 1651
1652 /* Handle a non-negated compare/stubtract condition. */
1653 case '<':
5cf4cd1b 1654 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1655 if (cmpltr < 0)
1656 {
8f78d0e9 1657 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
025b0302
ME		 1658 cmpltr = 0;
1659 }
48153d49 1660 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1661
1662 /* Handle a negated or non-negated compare/subtract condition. */
1663 case '?':
025b0302 1664 save_s = s;
5cf4cd1b 1665 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1666 if (cmpltr < 0)
1667 {
1668 s = save_s;
5cf4cd1b 1669 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1670 if (cmpltr < 0)
1671 {
8f78d0e9 1672 as_bad ("Invalid Compare/Subtract Condition.");
025b0302
ME		 1673 cmpltr = 0;
1674 }
1675 else
1676 {
8f78d0e9
KR		 1677 /* Negated condition requires an opcode change. */
1678 opcode |= 1 << 27;
025b0302
ME		 1679 }
1680 }
48153d49 1681 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9 1682
e03095c9 1683 /* Handle non-negated add condition. */
8f78d0e9 1684 case '!':
e03095c9
JL		 1685 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
1686 if (cmpltr < 0)
1687 {
1688 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
1689 cmpltr = 0;
1690 }
1691 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
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;
025b0302
ME		 2041 else
2042 the_insn.reloc = R_HPPA;
2043 the_insn.format = 11;
48153d49 2044 continue;
025b0302 2045 }
8f78d0e9
KR		 2046
2047 /* Handle a 14 bit immediate at 31. */
2048 case 'j':
025b0302 2049 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2050 get_expression (s);
48153d49 2051 s = expr_end;
5cf4cd1b 2052 if (the_insn.exp.X_op == O_constant)
025b0302 2053 {
48153d49
JL		 2054 num = evaluate_absolute (&the_insn);
2055 CHECK_FIELD (num, 8191, -8192, 0);
2056 low_sign_unext (num, 14, &num);
2057 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2058 }
2059 else
2060 {
2061 if (is_DP_relative (the_insn.exp))
2062 the_insn.reloc = R_HPPA_GOTOFF;
2063 else if (is_PC_relative (the_insn.exp))
2064 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2065 else
2066 the_insn.reloc = R_HPPA;
2067 the_insn.format = 14;
48153d49 2068 continue;
025b0302 2069 }
025b0302 2070
8f78d0e9
KR		 2071 /* Handle a 21 bit immediate at 31. */
2072 case 'k':
2073 the_insn.field_selector = pa_chk_field_selector (&s);
2074 get_expression (s);
48153d49 2075 s = expr_end;
5cf4cd1b 2076 if (the_insn.exp.X_op == O_constant)
025b0302 2077 {
48153d49 2078 num = evaluate_absolute (&the_insn);
c5e9ccd0 2079 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
48153d49
JL		 2080 dis_assemble_21 (num, &num);
2081 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2082 }
2083 else
2084 {
025b0302
ME		 2085 if (is_DP_relative (the_insn.exp))
2086 the_insn.reloc = R_HPPA_GOTOFF;
2087 else if (is_PC_relative (the_insn.exp))
2088 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2089 else
2090 the_insn.reloc = R_HPPA;
2091 the_insn.format = 21;
48153d49 2092 continue;
025b0302 2093 }
8f78d0e9
KR		 2094
2095 /* Handle a 12 bit branch displacement. */
2096 case 'w':
2097 the_insn.field_selector = pa_chk_field_selector (&s);
2098 get_expression (s);
48153d49 2099 s = expr_end;
025b0302 2100 the_insn.pcrel = 1;
48153d49 2101 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
025b0302
ME		 2102 {
2103 unsigned int w1, w, result;
2104
48153d49
JL		 2105 num = evaluate_absolute (&the_insn);
2106 if (num % 4)
2107 {
2108 as_bad ("Branch to unaligned address");
2109 break;
2110 }
2111 CHECK_FIELD (num, 8191, -8192, 0);
2112 sign_unext ((num - 8) >> 2, 12, &result);
025b0302 2113 dis_assemble_12 (result, &w1, &w);
48153d49 2114 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
025b0302
ME		 2115 }
2116 else
2117 {
3315c7c7 2118 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2119 the_insn.format = 12;
2120 the_insn.arg_reloc = last_call_desc.arg_reloc;
8f78d0e9 2121 bzero (&last_call_desc, sizeof (struct call_desc));
48153d49
JL		 2122 s = expr_end;
2123 continue;
025b0302 2124 }
8f78d0e9
KR		 2125
2126 /* Handle a 17 bit branch displacement. */
2127 case 'W':
025b0302 2128 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2129 get_expression (s);
48153d49 2130 s = expr_end;
025b0302 2131 the_insn.pcrel = 1;
c5e9ccd0 2132 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2133 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2134 "L$0\001"))
025b0302 2135 {
48153d49 2136 unsigned int w2, w1, w, result;
025b0302 2137
48153d49
JL		 2138 num = evaluate_absolute (&the_insn);
2139 if (num % 4)
025b0302 2140 {
48153d49
JL		 2141 as_bad ("Branch to unaligned address");
2142 break;
025b0302 2143 }
48153d49
JL		 2144 CHECK_FIELD (num, 262143, -262144, 0);
2145
2146 if (the_insn.exp.X_add_symbol)
2147 num -= 8;
2148
2149 sign_unext (num >> 2, 17, &result);
2150 dis_assemble_17 (result, &w1, &w2, &w);
2151 INSERT_FIELD_AND_CONTINUE (opcode,
c5e9ccd0 2152 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2153 }
2154 else
2155 {
3315c7c7 2156 the_insn.reloc = R_HPPA_PCREL_CALL;
48153d49
JL		 2157 the_insn.format = 17;
2158 the_insn.arg_reloc = last_call_desc.arg_reloc;
2159 bzero (&last_call_desc, sizeof (struct call_desc));
2160 continue;
025b0302 2161 }
8f78d0e9
KR		 2162
2163 /* Handle an absolute 17 bit branch target. */
2164 case 'z':
025b0302 2165 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2166 get_expression (s);
48153d49 2167 s = expr_end;
025b0302 2168 the_insn.pcrel = 0;
c5e9ccd0 2169 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2170 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2171 "L$0\001"))
025b0302 2172 {
48153d49 2173 unsigned int w2, w1, w, result;
c5e9ccd0 2174
48153d49
JL		 2175 num = evaluate_absolute (&the_insn);
2176 if (num % 4)
025b0302 2177 {
48153d49
JL		 2178 as_bad ("Branch to unaligned address");
2179 break;
025b0302 2180 }
48153d49
JL		 2181 CHECK_FIELD (num, 262143, -262144, 0);
2182
2183 if (the_insn.exp.X_add_symbol)
2184 num -= 8;
2185
2186 sign_unext (num >> 2, 17, &result);
2187 dis_assemble_17 (result, &w1, &w2, &w);
c5e9ccd0
JL		 2188 INSERT_FIELD_AND_CONTINUE (opcode,
2189 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2190 }
2191 else
2192 {
44e8d616 2193 the_insn.reloc = R_HPPA_ABS_CALL;
48153d49
JL		 2194 the_insn.format = 17;
2195 continue;
025b0302 2196 }
8f78d0e9
KR		 2197
2198 /* Handle a 5 bit shift count at 26. */
2199 case 'p':
48153d49 2200 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2201 s = expr_end;
48153d49
JL		 2202 CHECK_FIELD (num, 31, 0, 0);
2203 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
8f78d0e9
KR		 2204
2205 /* Handle a 5 bit bit position at 26. */
2206 case 'P':
48153d49 2207 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2208 s = expr_end;
48153d49
JL		 2209 CHECK_FIELD (num, 31, 0, 0);
2210 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
8f78d0e9
KR		 2211
2212 /* Handle a 5 bit immediate at 10. */
2213 case 'Q':
48153d49 2214 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2215 s = expr_end;
48153d49
JL		 2216 CHECK_FIELD (num, 31, 0, 0);
2217 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 2218
2219 /* Handle a 13 bit immediate at 18. */
2220 case 'A':
48153d49 2221 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2222 s = expr_end;
3315c7c7 2223 CHECK_FIELD (num, 8191, 0, 0);
48153d49 2224 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 2225
2226 /* Handle a 26 bit immediate at 31. */
2227 case 'D':
48153d49 2228 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2229 s = expr_end;
48153d49
JL		 2230 CHECK_FIELD (num, 671108864, 0, 0);
2231 INSERT_FIELD_AND_CONTINUE (opcode, num, 1);
8f78d0e9
KR		 2232
2233 /* Handle a 3 bit SFU identifier at 25. */
2234 case 'f':
51517966
JL		 2235 if (*s++ != ',')
2236 as_bad ("Invalid SFU identifier");
48153d49
JL		 2237 num = pa_get_absolute_expression (&the_insn, &s);
2238 s = expr_end;
2239 CHECK_FIELD (num, 7, 0, 0);
2240 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
8f78d0e9 2241
d0286a21 2242 /* Handle a 20 bit SOP field for spop0. */
8f78d0e9 2243 case 'O':
d0286a21 2244 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2245 s = expr_end;
d0286a21
JL		 2246 CHECK_FIELD (num, 1048575, 0, 0);
2247 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
2248 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2249
2250 /* Handle a 15bit SOP field for spop1. */
2251 case 'o':
2252 num = pa_get_absolute_expression (&the_insn, &s);
2253 s = expr_end;
2254 CHECK_FIELD (num, 32767, 0, 0);
2255 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
2256
2257 /* Handle a 10bit SOP field for spop3. */
2258 case '0':
2259 num = pa_get_absolute_expression (&the_insn, &s);
2260 s = expr_end;
2261 CHECK_FIELD (num, 1023, 0, 0);
2262 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
2263 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2264
2265 /* Handle a 15 bit SOP field for spop2. */
2266 case '1':
2267 num = pa_get_absolute_expression (&the_insn, &s);
2268 s = expr_end;
2269 CHECK_FIELD (num, 32767, 0, 0);
2270 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
2271 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2272
2273 /* Handle a 3-bit co-processor ID field. */
2274 case 'u':
51517966
JL		 2275 if (*s++ != ',')
2276 as_bad ("Invalid COPR identifier");
d0286a21
JL		 2277 num = pa_get_absolute_expression (&the_insn, &s);
2278 s = expr_end;
2279 CHECK_FIELD (num, 7, 0, 0);
2280 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2281
2282 /* Handle a 22bit SOP field for copr. */
2283 case '2':
2284 num = pa_get_absolute_expression (&the_insn, &s);
2285 s = expr_end;
2286 CHECK_FIELD (num, 4194303, 0, 0);
2287 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
2288 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 2289
2290 /* Handle a source FP operand format completer. */
2291 case 'F':
2292 flag = pa_parse_fp_format (&s);
8f78d0e9 2293 the_insn.fpof1 = flag;
48153d49 2294 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
8f78d0e9
KR		 2295
2296 /* Handle a destination FP operand format completer. */
2297 case 'G':
8f78d0e9
KR		 2298 /* pa_parse_format needs the ',' prefix. */
2299 s--;
2300 flag = pa_parse_fp_format (&s);
8f78d0e9 2301 the_insn.fpof2 = flag;
48153d49 2302 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
8f78d0e9
KR		 2303
2304 /* Handle FP compare conditions. */
2305 case 'M':
025b0302 2306 cond = pa_parse_fp_cmp_cond (&s);
48153d49 2307 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
025b0302 2308
8f78d0e9
KR		 2309 /* Handle L/R register halves like 't'. */
2310 case 'v':
025b0302
ME		 2311 {
2312 struct pa_89_fp_reg_struct result;
025b0302 2313
8f78d0e9 2314 pa_parse_number (&s, &result);
48153d49
JL		 2315 CHECK_FIELD (result.number_part, 31, 0, 0);
2316 opcode |= result.number_part;
025b0302 2317
48153d49
JL		 2318 /* 0x30 opcodes are FP arithmetic operation opcodes
2319 and need to be turned into 0x38 opcodes. This
2320 is not necessary for loads/stores. */
2321 if (need_89_opcode (&the_insn, &result)
2322 && ((opcode & 0xfc000000) == 0x30000000))
2323 opcode |= 1 << 27;
2324
2325 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
025b0302 2326 }
8f78d0e9
KR		 2327
2328 /* Handle L/R register halves like 'b'. */
2329 case 'E':
025b0302
ME		 2330 {
2331 struct pa_89_fp_reg_struct result;
025b0302 2332
8f78d0e9 2333 pa_parse_number (&s, &result);
48153d49
JL		 2334 CHECK_FIELD (result.number_part, 31, 0, 0);
2335 opcode |= result.number_part << 21;
2336 if (need_89_opcode (&the_insn, &result))
025b0302 2337 {
48153d49
JL		 2338 opcode |= (result.l_r_select & 1) << 7;
2339 opcode |= 1 << 27;
025b0302 2340 }
48153d49 2341 continue;
025b0302 2342 }
025b0302 2343
8f78d0e9
KR		 2344 /* Handle L/R register halves like 'x'. */
2345 case 'X':
025b0302
ME		 2346 {
2347 struct pa_89_fp_reg_struct result;
025b0302 2348
8f78d0e9 2349 pa_parse_number (&s, &result);
48153d49
JL		 2350 CHECK_FIELD (result.number_part, 31, 0, 0);
2351 opcode |= (result.number_part & 0x1f) << 16;
2352 if (need_89_opcode (&the_insn, &result))
025b0302 2353 {
48153d49
JL		 2354 opcode |= (result.l_r_select & 1) << 12;
2355 opcode |= 1 << 27;
025b0302 2356 }
48153d49 2357 continue;
025b0302 2358 }
025b0302 2359
8f78d0e9
KR		 2360 /* Handle a 5 bit register field at 10. */
2361 case '4':
025b0302
ME		 2362 {
2363 struct pa_89_fp_reg_struct result;
48153d49
JL		 2364
2365 pa_parse_number (&s, &result);
2366 CHECK_FIELD (result.number_part, 31, 0, 0);
2367 if (the_insn.fpof1 == SGL)
025b0302 2368 {
48153d49
JL		 2369 result.number_part &= 0xF;
2370 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2371 }
48153d49 2372 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
025b0302 2373 }
025b0302 2374
8f78d0e9
KR		 2375 /* Handle a 5 bit register field at 15. */
2376 case '6':
025b0302
ME		 2377 {
2378 struct pa_89_fp_reg_struct result;
025b0302 2379
48153d49
JL		 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, 16);
025b0302 2388 }
025b0302 2389
8f78d0e9
KR		 2390 /* Handle a 5 bit register field at 31. */
2391 case '7':
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, 0);
025b0302 2403 }
025b0302 2404
8f78d0e9
KR		 2405 /* Handle a 5 bit register field at 20. */
2406 case '8':
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, 11);
025b0302 2418 }
025b0302 2419
8f78d0e9
KR		 2420 /* Handle a 5 bit register field at 25. */
2421 case '9':
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, 6);
025b0302 2433 }
025b0302 2434
8f78d0e9
KR		 2435 /* Handle a floating point operand format at 26.
2436 Only allows single and double precision. */
2437 case 'H':
2438 flag = pa_parse_fp_format (&s);
2439 switch (flag)
025b0302
ME		 2440 {
2441 case SGL:
2442 opcode |= 0x20;
2443 case DBL:
8f78d0e9 2444 the_insn.fpof1 = flag;
025b0302
ME		 2445 continue;
2446
2447 case QUAD:
2448 case ILLEGAL_FMT:
2449 default:
8f78d0e9 2450 as_bad ("Invalid Floating Point Operand Format.");
025b0302
ME		 2451 }
2452 break;
2453
2454 default:
2455 abort ();
2456 }
2457 break;
2458 }
892a3ff1 2459
8f78d0e9 2460 /* Check if the args matched. */
025b0302
ME		 2461 if (match == FALSE)
2462 {
025b0302
ME		 2463 if (&insn[1] - pa_opcodes < NUMOPCODES
2464 && !strcmp (insn->name, insn[1].name))
2465 {
2466 ++insn;
8f78d0e9 2467 s = argstart;
025b0302
ME		 2468 continue;
2469 }
2470 else
2471 {
8f78d0e9 2472 as_bad ("Invalid operands %s", error_message);
025b0302
ME		 2473 return;
2474 }
2475 }
2476 break;
2477 }
2478
2479 the_insn.opcode = opcode;
025b0302
ME		 2480}
2481
8f78d0e9 2482/* Turn a string in input_line_pointer into a floating point constant of type
025b0302 2483 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
8f78d0e9 2484 emitted is stored in *sizeP . An error message or NULL is returned. */
025b0302 2485
025b0302
ME		 2486#define MAX_LITTLENUMS 6
2487
2488char *
2489md_atof (type, litP, sizeP)
2490 char type;
2491 char *litP;
2492 int *sizeP;
2493{
2494 int prec;
2495 LITTLENUM_TYPE words[MAX_LITTLENUMS];
2496 LITTLENUM_TYPE *wordP;
2497 char *t;
025b0302
ME		 2498
2499 switch (type)
2500 {
2501
2502 case 'f':
2503 case 'F':
2504 case 's':
2505 case 'S':
2506 prec = 2;
2507 break;
2508
2509 case 'd':
2510 case 'D':
2511 case 'r':
2512 case 'R':
2513 prec = 4;
2514 break;
2515
2516 case 'x':
2517 case 'X':
2518 prec = 6;
2519 break;
2520
2521 case 'p':
2522 case 'P':
2523 prec = 6;
2524 break;
2525
2526 default:
2527 *sizeP = 0;
2528 return "Bad call to MD_ATOF()";
2529 }
2530 t = atof_ieee (input_line_pointer, type, words);
2531 if (t)
2532 input_line_pointer = t;
2533 *sizeP = prec * sizeof (LITTLENUM_TYPE);
2534 for (wordP = words; prec--;)
2535 {
8f78d0e9 2536 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
025b0302
ME		 2537 litP += sizeof (LITTLENUM_TYPE);
2538 }
aa8b30ed 2539 return NULL;
025b0302
ME		 2540}
2541
8f78d0e9
KR		 2542/* Write out big-endian. */
2543
025b0302
ME		 2544void
2545md_number_to_chars (buf, val, n)
2546 char *buf;
2547 valueT val;
2548 int n;
2549{
bfbfba45 2550 number_to_chars_bigendian (buf, val, n);
025b0302
ME		 2551}
2552
025b0302 2553/* Translate internal representation of relocation info to BFD target
62f0841b 2554 format. */
8f78d0e9 2555
025b0302
ME		 2556arelent **
2557tc_gen_reloc (section, fixp)
2558 asection *section;
2559 fixS *fixp;
2560{
2561 arelent *reloc;
fb338f1d 2562 struct hppa_fix_struct *hppa_fixp;
025b0302
ME		 2563 bfd_reloc_code_real_type code;
2564 static int unwind_reloc_fixp_cnt = 0;
2565 static arelent *unwind_reloc_entryP = NULL;
2566 static arelent *no_relocs = NULL;
2567 arelent **relocs;
2568 bfd_reloc_code_real_type **codes;
2569 int n_relocs;
2570 int i;
2571
fb338f1d 2572 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
025b0302
ME		 2573 if (fixp->fx_addsy == 0)
2574 return &no_relocs;
2575 assert (hppa_fixp != 0);
2576 assert (section != 0);
2577
025b0302
ME		 2578 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent));
2579 assert (reloc != 0);
2580
2581 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
aa8b30ed
JL		 2582 codes = hppa_gen_reloc_type (stdoutput,
2583 fixp->fx_r_type,
2584 hppa_fixp->fx_r_format,
2585 hppa_fixp->fx_r_field);
025b0302
ME		 2586
2587 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
2588 ;
2589
8f78d0e9
KR		 2590 relocs = (arelent **)
2591 bfd_alloc_by_size_t (stdoutput, sizeof (arelent *) * n_relocs + 1);
025b0302
ME		 2592 assert (relocs != 0);
2593
8f78d0e9
KR		 2594 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput,
2595 sizeof (arelent) * n_relocs);
025b0302
ME		 2596 if (n_relocs > 0)
2597 assert (reloc != 0);
2598
2599 for (i = 0; i < n_relocs; i++)
2600 relocs[i] = &reloc[i];
2601
2602 relocs[n_relocs] = NULL;
2603
62f0841b 2604#ifdef OBJ_ELF
025b0302
ME		 2605 switch (fixp->fx_r_type)
2606 {
025b0302
ME		 2607 default:
2608 assert (n_relocs == 1);
2609
2610 code = *codes[0];
2611
2612 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2613 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
2614 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2615 reloc->addend = 0; /* default */
2616
2617 assert (reloc->howto && code == reloc->howto->type);
2618
8f78d0e9 2619 /* Now, do any processing that is dependent on the relocation type. */
025b0302
ME		 2620 switch (code)
2621 {
3315c7c7
JL		 2622 case R_PARISC_PLABEL32:
2623 case R_PARISC_PLABEL21L:
2624 case R_PARISC_PLABEL14R:
8f78d0e9
KR		 2625 /* For plabel relocations, the addend of the
2626 relocation should be either 0 (no static link) or 2
2627 (static link required).
2628
7b624bf2
JL		 2629 FIXME: We always assume no static link! */
2630 reloc->addend = 0;
025b0302
ME		 2631 break;
2632
3315c7c7
JL		 2633 case R_PARISC_PCREL21L:
2634 case R_PARISC_PCREL17R:
2635 case R_PARISC_PCREL17F:
2636 case R_PARISC_PCREL17C:
2637 case R_PARISC_PCREL14R:
2638 case R_PARISC_PCREL14F:
8f78d0e9
KR		 2639 /* The constant is stored in the instruction. */
2640 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
025b0302
ME		 2641 break;
2642 default:
de3ffc7a 2643 if (fixp->fx_addsy && fixp->fx_addsy->bsym->flags & BSF_FUNCTION)
79381848 2644 reloc->addend = 0;
de3ffc7a 2645 else
79381848 2646 reloc->addend = fixp->fx_addnumber;
025b0302
ME		 2647 break;
2648 }
2649 break;
2650 }
62f0841b 2651#else /* OBJ_SOM */
025b0302 2652
4165dcc2
JL		 2653 /* Walk over reach relocation returned by the BFD backend. */
2654 for (i = 0; i < n_relocs; i++)
62f0841b 2655 {
4165dcc2 2656 code = *codes[i];
c5e9ccd0 2657
4165dcc2
JL		 2658 relocs[i]->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2659 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
2660 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
025b0302 2661
62f0841b
JL		 2662 switch (code)
2663 {
2664 case R_PCREL_CALL:
2665 case R_ABS_CALL:
4165dcc2 2666 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
62f0841b 2667 break;
f2eed884
JL		 2668
2669 case R_DATA_PLABEL:
2670 case R_CODE_PLABEL:
2671 /* For plabel relocations, the addend of the
2672 relocation should be either 0 (no static link) or 2
2673 (static link required).
2674
2675 FIXME: We always assume no static link! */
4165dcc2
JL		 2676 relocs[i]->addend = 0;
2677 break;
2678
2679 case R_N_MODE:
2680 case R_S_MODE:
2681 case R_D_MODE:
2682 case R_R_MODE:
6868afe6
KR		 2683 case R_EXIT:
2684 case R_FSEL:
2685 case R_LSEL:
2686 case R_RSEL:
4165dcc2 2687 /* There is no symbol or addend associated with these fixups. */
fca59f9d 2688 relocs[i]->sym_ptr_ptr = &dummy_symbol->bsym;
4165dcc2 2689 relocs[i]->addend = 0;
f2eed884
JL		 2690 break;
2691
62f0841b 2692 default:
de3ffc7a
JL		 2693 if (fixp->fx_addsy && fixp->fx_addsy->bsym->flags & BSF_FUNCTION)
2694 relocs[i]->addend = 0;
2695 else
2696 relocs[i]->addend = fixp->fx_addnumber;
62f0841b
JL		 2697 break;
2698 }
62f0841b 2699 }
025b0302
ME		 2700#endif
2701
62f0841b
JL		 2702 return relocs;
2703}
2704
8f78d0e9
KR		 2705/* Process any machine dependent frag types. */
2706
025b0302
ME		 2707void
2708md_convert_frag (abfd, sec, fragP)
2709 register bfd *abfd;
2710 register asection *sec;
2711 register fragS *fragP;
2712{
2713 unsigned int address;
2714
2715 if (fragP->fr_type == rs_machine_dependent)
2716 {
2717 switch ((int) fragP->fr_subtype)
2718 {
2719 case 0:
2720 fragP->fr_type = rs_fill;
2721 know (fragP->fr_var == 1);
2722 know (fragP->fr_next);
2723 address = fragP->fr_address + fragP->fr_fix;
2724 if (address % fragP->fr_offset)
2725 {
2726 fragP->fr_offset =
2727 fragP->fr_next->fr_address
2728 - fragP->fr_address
2729 - fragP->fr_fix;
2730 }
2731 else
2732 fragP->fr_offset = 0;
2733 break;
2734 }
8f78d0e9
KR		 2735 }
2736}
025b0302 2737
8f78d0e9 2738/* Round up a section size to the appropriate boundary. */
025b0302 2739
8f78d0e9
KR		 2740valueT
2741md_section_align (segment, size)
2742 asection *segment;
2743 valueT size;
025b0302 2744{
8f78d0e9
KR		 2745 int align = bfd_get_section_alignment (stdoutput, segment);
2746 int align2 = (1 << align) - 1;
025b0302 2747
8f78d0e9 2748 return (size + align2) & ~align2;
8f78d0e9 2749}
025b0302 2750
8f78d0e9
KR		 2751/* Create a short jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2752void
2753md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
2754 char *ptr;
2755 addressT from_addr, to_addr;
2756 fragS *frag;
2757 symbolS *to_symbol;
2758{
2759 fprintf (stderr, "pa_create_short_jmp\n");
2760 abort ();
2761}
025b0302 2762
8f78d0e9
KR		 2763/* Create a long jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2764void
2765md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
2766 char *ptr;
2767 addressT from_addr, to_addr;
2768 fragS *frag;
2769 symbolS *to_symbol;
2770{
2771 fprintf (stderr, "pa_create_long_jump\n");
2772 abort ();
025b0302
ME		 2773}
2774
8f78d0e9
KR		 2775/* Return the approximate size of a frag before relaxation has occurred. */
2776int
2777md_estimate_size_before_relax (fragP, segment)
2778 register fragS *fragP;
2779 asection *segment;
025b0302 2780{
8f78d0e9
KR		 2781 int size;
2782
2783 size = 0;
2784
2785 while ((fragP->fr_fix + size) % fragP->fr_offset)
2786 size++;
2787
2788 return size;
025b0302 2789}
f3d817d8
DM		 2790\f
2791CONST char *md_shortopts = "";
2792struct option md_longopts[] = {
2793 {NULL, no_argument, NULL, 0}
2794};
2795size_t md_longopts_size = sizeof(md_longopts);
025b0302 2796
8f78d0e9 2797int
f3d817d8
DM		 2798md_parse_option (c, arg)
2799 int c;
2800 char *arg;
025b0302 2801{
f3d817d8 2802 return 0;
8f78d0e9 2803}
025b0302 2804
f3d817d8
DM		 2805void
2806md_show_usage (stream)
2807 FILE *stream;
2808{
2809}
2810\f
8f78d0e9
KR		 2811/* We have no need to default values of symbols. */
2812
2813symbolS *
2814md_undefined_symbol (name)
2815 char *name;
2816{
2817 return 0;
025b0302
ME		 2818}
2819
8f78d0e9
KR		 2820/* Parse an operand that is machine-specific.
2821 We just return without modifying the expression as we have nothing
2822 to do on the PA. */
2823
2824void
2825md_operand (expressionP)
2826 expressionS *expressionP;
025b0302 2827{
8f78d0e9 2828}
025b0302 2829
753dcbbd 2830/* Apply a fixup to an instruction. */
8f78d0e9 2831
753dcbbd
JL		 2832int
2833md_apply_fix (fixP, valp)
8f78d0e9 2834 fixS *fixP;
753dcbbd 2835 valueT *valp;
025b0302 2836{
8f78d0e9 2837 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
fb338f1d 2838 struct hppa_fix_struct *hppa_fixP;
8f78d0e9
KR		 2839 long new_val, result;
2840 unsigned int w1, w2, w;
753dcbbd 2841 valueT val = *valp;
8f78d0e9 2842
fb338f1d 2843 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
ff852e11 2844 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
753dcbbd 2845 never be "applied" (they are just markers). */
ff852e11
JL		 2846#ifdef OBJ_SOM
2847 if (fixP->fx_r_type == R_HPPA_ENTRY
2848 || fixP->fx_r_type == R_HPPA_EXIT)
753dcbbd 2849 return 1;
ff852e11
JL		 2850#endif
2851
8f78d0e9
KR		 2852 /* There should have been an HPPA specific fixup associated
2853 with the GAS fixup. */
2854 if (hppa_fixP)
2855 {
2856 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
aa8b30ed 2857 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
8f78d0e9 2858
aa8b30ed
JL		 2859 if (fixP->fx_r_type == R_HPPA_NONE)
2860 fmt = 0;
8f78d0e9
KR		 2861
2862 /* Remember this value for emit_reloc. FIXME, is this braindamage
c5e9ccd0 2863 documented anywhere!?! */
8f78d0e9
KR		 2864 fixP->fx_addnumber = val;
2865
2866 /* Check if this is an undefined symbol. No relocation can
fca59f9d
JL		 2867 possibly be performed in this case.
2868
2869 Also avoid doing anything for pc-relative fixups in which the
2870 fixup is in a different space than the symbol it references. */
8f78d0e9
KR		 2871 if ((fixP->fx_addsy && fixP->fx_addsy->bsym->section == &bfd_und_section)
2872 || (fixP->fx_subsy
fca59f9d 2873 && fixP->fx_subsy->bsym->section == &bfd_und_section)
86066d06
JL		 2874 || (fixP->fx_pcrel
2875 && fixP->fx_addsy
fca59f9d 2876 && S_GET_SEGMENT (fixP->fx_addsy) != hppa_fixP->segment)
86066d06
JL		 2877 || (fixP->fx_pcrel
2878 && fixP->fx_subsy
fca59f9d 2879 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
753dcbbd 2880 return 1;
8f78d0e9 2881
753dcbbd 2882 /* PLABEL field selectors should not be passed to hppa_field_adjust. */
f2eed884
JL		 2883 if (fmt != 0 && hppa_fixP->fx_r_field != R_HPPA_PSEL
2884 && hppa_fixP->fx_r_field != R_HPPA_LPSEL
9d5a9b20
JL		 2885 && hppa_fixP->fx_r_field != R_HPPA_RPSEL
2886 && hppa_fixP->fx_r_field != R_HPPA_TSEL
2887 && hppa_fixP->fx_r_field != R_HPPA_LTSEL
de3ffc7a
JL		 2888 && hppa_fixP->fx_r_field != R_HPPA_RTSEL
2889 && !(fixP->fx_addsy && fixP->fx_addsy->bsym->flags & BSF_FUNCTION))
48153d49
JL		 2890 new_val = hppa_field_adjust (val, 0, hppa_fixP->fx_r_field);
2891 else
2892 new_val = 0;
2893
8f78d0e9
KR		 2894 switch (fmt)
2895 {
2896 /* Handle all opcodes with the 'j' operand type. */
2897 case 14:
48153d49 2898 CHECK_FIELD (new_val, 8191, -8192, 0);
8f78d0e9
KR		 2899
2900 /* Mask off 14 bits to be changed. */
2901 bfd_put_32 (stdoutput,
2902 bfd_get_32 (stdoutput, buf) & 0xffffc000,
2903 buf);
2904 low_sign_unext (new_val, 14, &result);
2905 break;
2906
2907 /* Handle all opcodes with the 'k' operand type. */
2908 case 21:
48153d49 2909 CHECK_FIELD (new_val, 2097152, 0, 0);
8f78d0e9
KR		 2910
2911 /* Mask off 21 bits to be changed. */
2912 bfd_put_32 (stdoutput,
2913 bfd_get_32 (stdoutput, buf) & 0xffe00000,
2914 buf);
2915 dis_assemble_21 (new_val, &result);
2916 break;
2917
2918 /* Handle all the opcodes with the 'i' operand type. */
2919 case 11:
48153d49 2920 CHECK_FIELD (new_val, 1023, -1023, 0);
8f78d0e9
KR		 2921
2922 /* Mask off 11 bits to be changed. */
2923 bfd_put_32 (stdoutput,
2924 bfd_get_32 (stdoutput, buf) & 0xffff800,
2925 buf);
2926 low_sign_unext (new_val, 11, &result);
2927 break;
2928
2929 /* Handle all the opcodes with the 'w' operand type. */
2930 case 12:
48153d49 2931 CHECK_FIELD (new_val, 8191, -8192, 0)
8f78d0e9
KR		 2932
2933 /* Mask off 11 bits to be changed. */
c5e9ccd0 2934 sign_unext ((new_val - 8) >> 2, 12, &result);
8f78d0e9
KR		 2935 bfd_put_32 (stdoutput,
2936 bfd_get_32 (stdoutput, buf) & 0xffffe002,
2937 buf);
2938
2939 dis_assemble_12 (result, &w1, &w);
2940 result = ((w1 << 2) | w);
8f78d0e9
KR		 2941 break;
2942
753dcbbd
JL		 2943 /* Handle some of the opcodes with the 'W' operand type. */
2944 case 17:
2945
8f78d0e9
KR		 2946#define stub_needed(CALLER, CALLEE) \
2947 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
753dcbbd
JL		 2948 /* It is necessary to force PC-relative calls/jumps to have a
2949 relocation entry if they're going to need either a argument
2950 relocation or long call stub. FIXME. Can't we need the same
2951 for absolute calls? */
2952 if (fixP->fx_addsy
2953 && (stub_needed (((obj_symbol_type *)
2954 fixP->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
2955 hppa_fixP->fx_arg_reloc)))
2956 return 1;
2957#undef stub_needed
8f78d0e9 2958
48153d49 2959 CHECK_FIELD (new_val, 262143, -262144, 0);
8f78d0e9
KR		 2960
2961 /* Mask off 17 bits to be changed. */
2962 bfd_put_32 (stdoutput,
2963 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
2964 buf);
2965 sign_unext ((new_val - 8) >> 2, 17, &result);
2966 dis_assemble_17 (result, &w1, &w2, &w);
2967 result = ((w2 << 2) | (w1 << 16) | w);
8f78d0e9
KR		 2968 break;
2969
8f78d0e9 2970 case 32:
3315c7c7
JL		 2971 result = 0;
2972 fixP->fx_addnumber = fixP->fx_offset;
2973 /* If we have a real relocation, then we want zero to
2974 be stored in the object file. If no relocation is going
2975 to be emitted, then we need to store new_val into the
2976 object file. */
2977 if (fixP->fx_addsy)
2978 bfd_put_32 (stdoutput, 0, buf);
8f78d0e9 2979 else
3315c7c7
JL		 2980 bfd_put_32 (stdoutput, new_val, buf);
2981 return 1;
8f78d0e9
KR		 2982 break;
2983
2984 case 0:
753dcbbd 2985 return 1;
8f78d0e9
KR		 2986
2987 default:
48153d49 2988 as_bad ("Unknown relocation encountered in md_apply_fix.");
753dcbbd 2989 return 1;
8f78d0e9
KR		 2990 }
2991
2992 /* Insert the relocation. */
48153d49 2993 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
753dcbbd 2994 return 1;
8f78d0e9 2995 }
025b0302 2996 else
753dcbbd
JL		 2997 {
2998 printf ("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n",
2999 (unsigned int) fixP, fixP->fx_r_type);
3000 return 0;
3001 }
8f78d0e9
KR		 3002}
3003
3004/* Exactly what point is a PC-relative offset relative TO?
3005 On the PA, they're relative to the address of the offset. */
3006
3007long
3008md_pcrel_from (fixP)
3009 fixS *fixP;
3010{
3011 return fixP->fx_where + fixP->fx_frag->fr_address;
3012}
3013
3014/* Return nonzero if the input line pointer is at the end of
3015 a statement. */
3016
3017static int
3018is_end_of_statement ()
3019{
3020 return ((*input_line_pointer == '\n')
3021 || (*input_line_pointer == ';')
3022 || (*input_line_pointer == '!'));
3023}
3024
3025/* Read a number from S. The number might come in one of many forms,
3026 the most common will be a hex or decimal constant, but it could be
3027 a pre-defined register (Yuk!), or an absolute symbol.
3028
3029 Return a number or -1 for failure.
3030
3031 When parsing PA-89 FP register numbers RESULT will be
3032 the address of a structure to return information about
3033 L/R half of FP registers, store results there as appropriate.
3034
3035 pa_parse_number can not handle negative constants and will fail
3036 horribly if it is passed such a constant. */
3037
3038static int
3039pa_parse_number (s, result)
025b0302
ME		 3040 char **s;
3041 struct pa_89_fp_reg_struct *result;
3042{
3043 int num;
3044 char *name;
3045 char c;
3046 symbolS *sym;
3047 int status;
3048 char *p = *s;
3049
8f78d0e9 3050 /* Skip whitespace before the number. */
025b0302
ME		 3051 while (*p == ' ' || *p == '\t')
3052 p = p + 1;
8f78d0e9
KR		 3053
3054 /* Store info in RESULT if requested by caller. */
3055 if (result)
3056 {
3057 result->number_part = -1;
3058 result->l_r_select = -1;
3059 }
3060 num = -1;
025b0302
ME		 3061
3062 if (isdigit (*p))
3063 {
8f78d0e9
KR		 3064 /* Looks like a number. */
3065 num = 0;
025b0302
ME		 3066
3067 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
8f78d0e9
KR		 3068 {
3069 /* The number is specified in hex. */
3070 p += 2;
025b0302
ME		 3071 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
3072 || ((*p >= 'A') && (*p <= 'F')))
3073 {
3074 if (isdigit (*p))
3075 num = num * 16 + *p - '0';
3076 else if (*p >= 'a' && *p <= 'f')
3077 num = num * 16 + *p - 'a' + 10;
3078 else
3079 num = num * 16 + *p - 'A' + 10;
3080 ++p;
3081 }
3082 }
3083 else
3084 {
8f78d0e9 3085 /* The number is specified in decimal. */
025b0302
ME		 3086 while (isdigit (*p))
3087 {
3088 num = num * 10 + *p - '0';
3089 ++p;
3090 }
3091 }
3092
8f78d0e9
KR		 3093 /* Store info in RESULT if requested by the caller. */
3094 if (result)
025b0302 3095 {
8f78d0e9 3096 result->number_part = num;
025b0302 3097
8f78d0e9
KR		 3098 if (IS_R_SELECT (p))
3099 {
3100 result->l_r_select = 1;
3101 ++p;
3102 }
3103 else if (IS_L_SELECT (p))
3104 {
3105 result->l_r_select = 0;
3106 ++p;
3107 }
3108 else
3109 result->l_r_select = 0;
3110 }
025b0302
ME		 3111 }
3112 else if (*p == '%')
8f78d0e9
KR		 3113 {
3114 /* The number might be a predefined register. */
025b0302
ME		 3115 num = 0;
3116 name = p;
3117 p++;
3118 c = *p;
8f78d0e9
KR		 3119 /* Tege hack: Special case for general registers as the general
3120 code makes a binary search with case translation, and is VERY
3121 slow. */
025b0302
ME		 3122 if (c == 'r')
3123 {
3124 p++;
8f78d0e9
KR		 3125 if (*p == 'e' && *(p + 1) == 't'
3126 && (*(p + 2) == '0' || *(p + 2) == '1'))
025b0302
ME		 3127 {
3128 p += 2;
8f78d0e9 3129 num = *p - '0' + 28;
025b0302
ME		 3130 p++;
3131 }
d6e524f3
JL		 3132 else if (*p == 'p')
3133 {
3134 num = 2;
3135 p++;
3136 }
025b0302 3137 else if (!isdigit (*p))
d6e524f3
JL		 3138 {
3139 if (print_errors)
3140 as_bad ("Undefined register: '%s'.", name);
3141 num = -1;
3142 }
025b0302
ME		 3143 else
3144 {
3145 do
3146 num = num * 10 + *p++ - '0';
3147 while (isdigit (*p));
3148 }
3149 }
3150 else
3151 {
8f78d0e9 3152 /* Do a normal register search. */
025b0302
ME		 3153 while (is_part_of_name (c))
3154 {
3155 p = p + 1;
3156 c = *p;
3157 }
3158 *p = 0;
3159 status = reg_name_search (name);
3160 if (status >= 0)
3161 num = status;
3162 else
3163 {
3164 if (print_errors)
d6e524f3
JL		 3165 as_bad ("Undefined register: '%s'.", name);
3166 num = -1;
025b0302
ME		 3167 }
3168 *p = c;
3169 }
3170
8f78d0e9
KR		 3171 /* Store info in RESULT if requested by caller. */
3172 if (result)
3173 {
3174 result->number_part = num;
3175 if (IS_R_SELECT (p - 1))
3176 result->l_r_select = 1;
3177 else if (IS_L_SELECT (p - 1))
3178 result->l_r_select = 0;
3179 else
3180 result->l_r_select = 0;
3181 }
025b0302
ME		 3182 }
3183 else
3184 {
8f78d0e9
KR		 3185 /* And finally, it could be a symbol in the absolute section which
3186 is effectively a constant. */
025b0302
ME		 3187 num = 0;
3188 name = p;
3189 c = *p;
3190 while (is_part_of_name (c))
3191 {
3192 p = p + 1;
3193 c = *p;
3194 }
3195 *p = 0;
3196 if ((sym = symbol_find (name)) != NULL)
3197 {
025b0302 3198 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
8f78d0e9 3199 num = S_GET_VALUE (sym);
025b0302
ME		 3200 else
3201 {
3202 if (print_errors)
d6e524f3
JL		 3203 as_bad ("Non-absolute symbol: '%s'.", name);
3204 num = -1;
025b0302
ME		 3205 }
3206 }
3207 else
3208 {
d6e524f3
JL		 3209 /* There is where we'd come for an undefined symbol
3210 or for an empty string. For an empty string we
3211 will return zero. That's a concession made for
3212 compatability with the braindamaged HP assemblers. */
1cc248d2 3213 if (*name == 0)
d6e524f3 3214 num = 0;
025b0302 3215 else
d6e524f3
JL		 3216 {
3217 if (print_errors)
3218 as_bad ("Undefined absolute constant: '%s'.", name);
3219 num = -1;
3220 }
025b0302
ME		 3221 }
3222 *p = c;
025b0302 3223
8f78d0e9
KR		 3224 /* Store info in RESULT if requested by caller. */
3225 if (result)
3226 {
3227 result->number_part = num;
3228 if (IS_R_SELECT (p - 1))
3229 result->l_r_select = 1;
3230 else if (IS_L_SELECT (p - 1))
3231 result->l_r_select = 0;
3232 else
3233 result->l_r_select = 0;
3234 }
025b0302
ME		 3235 }
3236
3237 *s = p;
3238 return num;
8f78d0e9
KR		 3239}
3240
3241#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3242
3243/* Given NAME, find the register number associated with that name, return
3244 the integer value associated with the given name or -1 on failure. */
3245
3246static int
3247reg_name_search (name)
3248 char *name;
3249{
3250 int middle, low, high;
4047ff1d 3251 int cmp;
8f78d0e9
KR		 3252
3253 low = 0;
3254 high = REG_NAME_CNT - 1;
3255
3256 do
3257 {
3258 middle = (low + high) / 2;
4047ff1d
JL		 3259 cmp = strcasecmp (name, pre_defined_registers[middle].name);
3260 if (cmp < 0)
8f78d0e9 3261 high = middle - 1;
4047ff1d 3262 else if (cmp > 0)
8f78d0e9 3263 low = middle + 1;
4047ff1d
JL		 3264 else
3265 return pre_defined_registers[middle].value;
8f78d0e9 3266 }
4047ff1d 3267 while (low <= high);
8f78d0e9 3268
4047ff1d 3269 return -1;
8f78d0e9
KR		 3270}
3271
3272
3273/* Return nonzero if the given INSN and L/R information will require
3274 a new PA-89 opcode. */
025b0302 3275
8f78d0e9
KR		 3276static int
3277need_89_opcode (insn, result)
3278 struct pa_it *insn;
3279 struct pa_89_fp_reg_struct *result;
3280{
3281 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
3282 return TRUE;
3283 else
3284 return FALSE;
025b0302
ME		 3285}
3286
8f78d0e9
KR		 3287/* Parse a condition for a fcmp instruction. Return the numerical
3288 code associated with the condition. */
c5e9ccd0 3289
8f78d0e9 3290static int
025b0302
ME		 3291pa_parse_fp_cmp_cond (s)
3292 char **s;
3293{
3294 int cond, i;
025b0302
ME		 3295
3296 cond = 0;
3297
3298 for (i = 0; i < 32; i++)
3299 {
8f78d0e9
KR		 3300 if (strncasecmp (*s, fp_cond_map[i].string,
3301 strlen (fp_cond_map[i].string)) == 0)
025b0302 3302 {
8f78d0e9
KR		 3303 cond = fp_cond_map[i].cond;
3304 *s += strlen (fp_cond_map[i].string);
ee8b8346
JL		 3305 /* If not a complete match, back up the input string and
3306 report an error. */
3307 if (**s != ' ' && **s != '\t')
3308 {
3309 *s -= strlen (fp_cond_map[i].string);
3310 break;
3311 }
025b0302
ME		 3312 while (**s == ' ' || **s == '\t')
3313 *s = *s + 1;
3314 return cond;
3315 }
3316 }
3317
ee8b8346
JL		 3318 as_bad ("Invalid FP Compare Condition: %s", *s);
3319
3320 /* Advance over the bogus completer. */
3321 while (**s != ',' && **s != ' ' && **s != '\t')
3322 *s += 1;
3323
025b0302
ME		 3324 return 0;
3325}
3326
8f78d0e9
KR		 3327/* Parse an FP operand format completer returning the completer
3328 type. */
c5e9ccd0 3329
8f78d0e9 3330static fp_operand_format
025b0302
ME		 3331pa_parse_fp_format (s)
3332 char **s;
3333{
8f78d0e9 3334 int format;
025b0302 3335
8f78d0e9 3336 format = SGL;
025b0302
ME		 3337 if (**s == ',')
3338 {
3339 *s += 1;
3340 if (strncasecmp (*s, "sgl", 3) == 0)
3341 {
8f78d0e9 3342 format = SGL;
025b0302
ME		 3343 *s += 4;
3344 }
3345 else if (strncasecmp (*s, "dbl", 3) == 0)
3346 {
8f78d0e9 3347 format = DBL;
025b0302
ME		 3348 *s += 4;
3349 }
3350 else if (strncasecmp (*s, "quad", 4) == 0)
3351 {
8f78d0e9 3352 format = QUAD;
025b0302
ME		 3353 *s += 5;
3354 }
3355 else
3356 {
8f78d0e9
KR		 3357 format = ILLEGAL_FMT;
3358 as_bad ("Invalid FP Operand Format: %3s", *s);
025b0302
ME		 3359 }
3360 }
025b0302 3361
8f78d0e9 3362 return format;
025b0302
ME		 3363}
3364
8f78d0e9
KR		 3365/* Convert from a selector string into a selector type. */
3366
3367static int
025b0302
ME		 3368pa_chk_field_selector (str)
3369 char **str;
3370{
4047ff1d
JL		 3371 int middle, low, high;
3372 int cmp;
3373 char name[3];
025b0302 3374
8f78d0e9 3375 /* Read past any whitespace. */
4047ff1d 3376 /* FIXME: should we read past newlines and formfeeds??? */
025b0302 3377 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
8f78d0e9
KR		 3378 *str = *str + 1;
3379
4047ff1d
JL		 3380 if ((*str)[1] == '\'' || (*str)[1] == '%')
3381 name[0] = tolower ((*str)[0]),
3382 name[1] = 0;
3383 else if ((*str)[2] == '\'' || (*str)[2] == '%')
3384 name[0] = tolower ((*str)[0]),
3385 name[1] = tolower ((*str)[1]),
3386 name[2] = 0;
3387 else
3388 return e_fsel;
3389
3390 low = 0;
3391 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
3392
3393 do
025b0302 3394 {
4047ff1d
JL		 3395 middle = (low + high) / 2;
3396 cmp = strcmp (name, selector_table[middle].prefix);
3397 if (cmp < 0)
3398 high = middle - 1;
3399 else if (cmp > 0)
3400 low = middle + 1;
3401 else
025b0302 3402 {
4047ff1d
JL		 3403 *str += strlen (name) + 1;
3404 return selector_table[middle].field_selector;
025b0302
ME		 3405 }
3406 }
4047ff1d
JL		 3407 while (low <= high);
3408
3409 return e_fsel;
025b0302
ME		 3410}
3411
c5e9ccd0 3412/* Mark (via expr_end) the end of an expression (I think). FIXME. */
025b0302 3413
8f78d0e9
KR		 3414static int
3415get_expression (str)
025b0302
ME		 3416 char *str;
3417{
3418 char *save_in;
8f78d0e9 3419 asection *seg;
025b0302
ME		 3420
3421 save_in = input_line_pointer;
3422 input_line_pointer = str;
5cf4cd1b
KR		 3423 seg = expression (&the_insn.exp);
3424 if (!(seg == absolute_section
3425 || seg == undefined_section
3426 || SEG_NORMAL (seg)))
025b0302 3427 {
c5e9ccd0 3428 as_warn ("Bad segment in expression.");
025b0302
ME		 3429 expr_end = input_line_pointer;
3430 input_line_pointer = save_in;
3431 return 1;
3432 }
3433 expr_end = input_line_pointer;
3434 input_line_pointer = save_in;
3435 return 0;
3436}
3437
8f78d0e9
KR		 3438/* Mark (via expr_end) the end of an absolute expression. FIXME. */
3439static int
48153d49
JL		 3440pa_get_absolute_expression (insn, strp)
3441 struct pa_it *insn;
3442 char **strp;
025b0302
ME		 3443{
3444 char *save_in;
025b0302 3445
48153d49 3446 insn->field_selector = pa_chk_field_selector (strp);
025b0302 3447 save_in = input_line_pointer;
48153d49
JL		 3448 input_line_pointer = *strp;
3449 expression (&insn->exp);
3450 if (insn->exp.X_op != O_constant)
025b0302 3451 {
48153d49 3452 as_bad ("Bad segment (should be absolute).");
025b0302
ME		 3453 expr_end = input_line_pointer;
3454 input_line_pointer = save_in;
48153d49 3455 return 0;
025b0302
ME		 3456 }
3457 expr_end = input_line_pointer;
3458 input_line_pointer = save_in;
48153d49 3459 return evaluate_absolute (insn);
025b0302
ME		 3460}
3461
8f78d0e9
KR		 3462/* Evaluate an absolute expression EXP which may be modified by
3463 the selector FIELD_SELECTOR. Return the value of the expression. */
3464static int
48153d49
JL		 3465evaluate_absolute (insn)
3466 struct pa_it *insn;
025b0302
ME		 3467{
3468 int value;
f41f3d72 3469 expressionS exp;
48153d49 3470 int field_selector = insn->field_selector;
025b0302 3471
f41f3d72 3472 exp = insn->exp;
025b0302
ME		 3473 value = exp.X_add_number;
3474
025b0302
ME		 3475 switch (field_selector)
3476 {
8f78d0e9
KR		 3477 /* No change. */
3478 case e_fsel:
025b0302
ME		 3479 break;
3480
8f78d0e9
KR		 3481 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3482 case e_lssel:
025b0302
ME		 3483 if (value & 0x00000400)
3484 value += 0x800;
3485 value = (value & 0xfffff800) >> 11;
3486 break;
3487
8f78d0e9
KR		 3488 /* Sign extend from bit 21. */
3489 case e_rssel:
025b0302
ME		 3490 if (value & 0x00000400)
3491 value |= 0xfffff800;
3492 else
3493 value &= 0x7ff;
3494 break;
3495
8f78d0e9
KR		 3496 /* Arithmetic shift right 11 bits. */
3497 case e_lsel:
025b0302
ME		 3498 value = (value & 0xfffff800) >> 11;
3499 break;
3500
8f78d0e9
KR		 3501 /* Set bits 0-20 to zero. */
3502 case e_rsel:
025b0302
ME		 3503 value = value & 0x7ff;
3504 break;
3505
8f78d0e9
KR		 3506 /* Add 0x800 and arithmetic shift right 11 bits. */
3507 case e_ldsel:
025b0302 3508 value += 0x800;
025b0302
ME		 3509 value = (value & 0xfffff800) >> 11;
3510 break;
3511
8f78d0e9
KR		 3512 /* Set bitgs 0-21 to one. */
3513 case e_rdsel:
3514 value |= 0xfffff800;
025b0302
ME		 3515 break;
3516
7b624bf2 3517#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
8f78d0e9 3518 case e_rrsel:
7b624bf2
JL		 3519 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
3520 break;
3521
8f78d0e9 3522 case e_lrsel:
7b624bf2
JL		 3523 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
3524 break;
3525#undef RSEL_ROUND
8f78d0e9 3526
025b0302
ME		 3527 default:
3528 BAD_CASE (field_selector);
3529 break;
3530 }
3531 return value;
3532}
3533
8f78d0e9
KR		 3534/* Given an argument location specification return the associated
3535 argument location number. */
3536
3537static unsigned int
025b0302
ME		 3538pa_build_arg_reloc (type_name)
3539 char *type_name;
3540{
3541
3542 if (strncasecmp (type_name, "no", 2) == 0)
8f78d0e9 3543 return 0;
025b0302 3544 if (strncasecmp (type_name, "gr", 2) == 0)
8f78d0e9 3545 return 1;
025b0302 3546 else if (strncasecmp (type_name, "fr", 2) == 0)
8f78d0e9 3547 return 2;
025b0302 3548 else if (strncasecmp (type_name, "fu", 2) == 0)
8f78d0e9 3549 return 3;
025b0302 3550 else
8f78d0e9 3551 as_bad ("Invalid argument location: %s\n", type_name);
025b0302
ME		 3552
3553 return 0;
3554}
3555
8f78d0e9
KR		 3556/* Encode and return an argument relocation specification for
3557 the given register in the location specified by arg_reloc. */
3558
3559static unsigned int
025b0302
ME		 3560pa_align_arg_reloc (reg, arg_reloc)
3561 unsigned int reg;
3562 unsigned int arg_reloc;
3563{
3564 unsigned int new_reloc;
3565
3566 new_reloc = arg_reloc;
3567 switch (reg)
3568 {
3569 case 0:
3570 new_reloc <<= 8;
3571 break;
3572 case 1:
3573 new_reloc <<= 6;
3574 break;
3575 case 2:
3576 new_reloc <<= 4;
3577 break;
3578 case 3:
3579 new_reloc <<= 2;
3580 break;
3581 default:
8f78d0e9 3582 as_bad ("Invalid argument description: %d", reg);
025b0302
ME		 3583 }
3584
3585 return new_reloc;
3586}
3587
8f78d0e9
KR		 3588/* Parse a PA nullification completer (,n). Return nonzero if the
3589 completer was found; return zero if no completer was found. */
3590
3591static int
025b0302
ME		 3592pa_parse_nullif (s)
3593 char **s;
3594{
3595 int nullif;
3596
3597 nullif = 0;
3598 if (**s == ',')
3599 {
3600 *s = *s + 1;
3601 if (strncasecmp (*s, "n", 1) == 0)
3602 nullif = 1;
3603 else
3604 {
8f78d0e9 3605 as_bad ("Invalid Nullification: (%c)", **s);
025b0302
ME		 3606 nullif = 0;
3607 }
3608 *s = *s + 1;
3609 }
025b0302
ME		 3610
3611 return nullif;
3612}
3613
8f78d0e9
KR		 3614/* Parse a non-negated compare/subtract completer returning the
3615 number (for encoding in instrutions) of the given completer.
3616
3617 ISBRANCH specifies whether or not this is parsing a condition
3618 completer for a branch (vs a nullification completer for a
3619 computational instruction. */
3620
3621static int
5cf4cd1b 3622pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
025b0302 3623 char **s;
5cf4cd1b 3624 int isbranch;
025b0302
ME		 3625{
3626 int cmpltr;
5cf4cd1b 3627 char *name = *s + 1;
025b0302 3628 char c;
5cf4cd1b 3629 char *save_s = *s;
025b0302 3630
5cf4cd1b 3631 cmpltr = 0;
025b0302
ME		 3632 if (**s == ',')
3633 {
3634 *s += 1;
025b0302
ME		 3635 while (**s != ',' && **s != ' ' && **s != '\t')
3636 *s += 1;
3637 c = **s;
3638 **s = 0x00;
3639 if (strcmp (name, "=") == 0)
3640 {
3641 cmpltr = 1;
3642 }
3643 else if (strcmp (name, "<") == 0)
3644 {
3645 cmpltr = 2;
3646 }
3647 else if (strcmp (name, "<=") == 0)
3648 {
3649 cmpltr = 3;
3650 }
3651 else if (strcmp (name, "<<") == 0)
3652 {
3653 cmpltr = 4;
3654 }
3655 else if (strcmp (name, "<<=") == 0)
3656 {
3657 cmpltr = 5;
3658 }
3659 else if (strcasecmp (name, "sv") == 0)
3660 {
3661 cmpltr = 6;
3662 }
3663 else if (strcasecmp (name, "od") == 0)
3664 {
3665 cmpltr = 7;
3666 }
5cf4cd1b 3667 /* If we have something like addb,n then there is no condition
8f78d0e9 3668 completer. */
5cf4cd1b 3669 else if (strcasecmp (name, "n") == 0 && isbranch)
025b0302 3670 {
5cf4cd1b 3671 cmpltr = 0;
025b0302 3672 }
8f78d0e9 3673 else
025b0302 3674 {
5cf4cd1b 3675 cmpltr = -1;
025b0302 3676 }
025b0302
ME		 3677 **s = c;
3678 }
025b0302 3679
5cf4cd1b
KR		 3680 /* Reset pointers if this was really a ,n for a branch instruction. */
3681 if (cmpltr == 0 && *name == 'n' && isbranch)
3682 *s = save_s;
3683
025b0302
ME		 3684 return cmpltr;
3685}
3686
8f78d0e9
KR		 3687/* Parse a negated compare/subtract completer returning the
3688 number (for encoding in instrutions) of the given completer.
3689
3690 ISBRANCH specifies whether or not this is parsing a condition
3691 completer for a branch (vs a nullification completer for a
3692 computational instruction. */
3693
3694static int
5cf4cd1b 3695pa_parse_neg_cmpsub_cmpltr (s, isbranch)
025b0302 3696 char **s;
5cf4cd1b 3697 int isbranch;
025b0302
ME		 3698{
3699 int cmpltr;
5cf4cd1b 3700 char *name = *s + 1;
025b0302 3701 char c;
5cf4cd1b 3702 char *save_s = *s;
025b0302 3703
5cf4cd1b 3704 cmpltr = 0;
025b0302
ME		 3705 if (**s == ',')
3706 {
3707 *s += 1;
025b0302
ME		 3708 while (**s != ',' && **s != ' ' && **s != '\t')
3709 *s += 1;
3710 c = **s;
3711 **s = 0x00;
3712 if (strcasecmp (name, "tr") == 0)
3713 {
3714 cmpltr = 0;
3715 }
3716 else if (strcmp (name, "<>") == 0)
3717 {
3718 cmpltr = 1;
3719 }
3720 else if (strcmp (name, ">=") == 0)
3721 {
3722 cmpltr = 2;
3723 }
3724 else if (strcmp (name, ">") == 0)
3725 {
3726 cmpltr = 3;
3727 }
3728 else if (strcmp (name, ">>=") == 0)
3729 {
3730 cmpltr = 4;
3731 }
3732 else if (strcmp (name, ">>") == 0)
3733 {
3734 cmpltr = 5;
3735 }
3736 else if (strcasecmp (name, "nsv") == 0)
3737 {
3738 cmpltr = 6;
3739 }
3740 else if (strcasecmp (name, "ev") == 0)
3741 {
3742 cmpltr = 7;
3743 }
5cf4cd1b 3744 /* If we have something like addb,n then there is no condition
8f78d0e9 3745 completer. */
5cf4cd1b
KR		 3746 else if (strcasecmp (name, "n") == 0 && isbranch)
3747 {
3748 cmpltr = 0;
3749 }
3750 else
3751 {
3752 cmpltr = -1;
3753 }
025b0302
ME		 3754 **s = c;
3755 }
025b0302 3756
5cf4cd1b
KR		 3757 /* Reset pointers if this was really a ,n for a branch instruction. */
3758 if (cmpltr == 0 && *name == 'n' && isbranch)
3759 *s = save_s;
3760
025b0302
ME		 3761 return cmpltr;
3762}
3763
8f78d0e9
KR		 3764/* Parse a non-negated addition completer returning the number
3765 (for encoding in instrutions) of the given completer.
3766
3767 ISBRANCH specifies whether or not this is parsing a condition
3768 completer for a branch (vs a nullification completer for a
3769 computational instruction. */
3770
3771static int
5cf4cd1b 3772pa_parse_nonneg_add_cmpltr (s, isbranch)
025b0302 3773 char **s;
5cf4cd1b 3774 int isbranch;
025b0302
ME		 3775{
3776 int cmpltr;
5cf4cd1b 3777 char *name = *s + 1;
025b0302 3778 char c;
5cf4cd1b 3779 char *save_s = *s;
025b0302 3780
5cf4cd1b 3781 cmpltr = 0;
025b0302
ME		 3782 if (**s == ',')
3783 {
3784 *s += 1;
025b0302
ME		 3785 while (**s != ',' && **s != ' ' && **s != '\t')
3786 *s += 1;
3787 c = **s;
3788 **s = 0x00;
3789 if (strcmp (name, "=") == 0)
3790 {
3791 cmpltr = 1;
3792 }
3793 else if (strcmp (name, "<") == 0)
3794 {
3795 cmpltr = 2;
3796 }
3797 else if (strcmp (name, "<=") == 0)
3798 {
3799 cmpltr = 3;
3800 }
3801 else if (strcasecmp (name, "nuv") == 0)
3802 {
3803 cmpltr = 4;
3804 }
3805 else if (strcasecmp (name, "znv") == 0)
3806 {
3807 cmpltr = 5;
3808 }
3809 else if (strcasecmp (name, "sv") == 0)
3810 {
3811 cmpltr = 6;
3812 }
3813 else if (strcasecmp (name, "od") == 0)
3814 {
3815 cmpltr = 7;
3816 }
5cf4cd1b 3817 /* If we have something like addb,n then there is no condition
8f78d0e9 3818 completer. */
5cf4cd1b
KR		 3819 else if (strcasecmp (name, "n") == 0 && isbranch)
3820 {
3821 cmpltr = 0;
3822 }
3823 else
3824 {
3825 cmpltr = -1;
3826 }
025b0302
ME		 3827 **s = c;
3828 }
025b0302 3829
5cf4cd1b
KR		 3830 /* Reset pointers if this was really a ,n for a branch instruction. */
3831 if (cmpltr == 0 && *name == 'n' && isbranch)
3832 *s = save_s;
3833
025b0302
ME		 3834 return cmpltr;
3835}
3836
8f78d0e9
KR		 3837/* Parse a negated addition completer returning the number
3838 (for encoding in instrutions) of the given completer.
3839
3840 ISBRANCH specifies whether or not this is parsing a condition
3841 completer for a branch (vs a nullification completer for a
3842 computational instruction. */
3843
3844static int
5cf4cd1b 3845pa_parse_neg_add_cmpltr (s, isbranch)
025b0302 3846 char **s;
5cf4cd1b 3847 int isbranch;
025b0302
ME		 3848{
3849 int cmpltr;
5cf4cd1b 3850 char *name = *s + 1;
025b0302 3851 char c;
5cf4cd1b 3852 char *save_s = *s;
025b0302 3853
5cf4cd1b 3854 cmpltr = 0;
025b0302
ME		 3855 if (**s == ',')
3856 {
3857 *s += 1;
025b0302
ME		 3858 while (**s != ',' && **s != ' ' && **s != '\t')
3859 *s += 1;
3860 c = **s;
3861 **s = 0x00;
3862 if (strcasecmp (name, "tr") == 0)
3863 {
3864 cmpltr = 0;
3865 }
3866 else if (strcmp (name, "<>") == 0)
3867 {
3868 cmpltr = 1;
3869 }
3870 else if (strcmp (name, ">=") == 0)
3871 {
3872 cmpltr = 2;
3873 }
3874 else if (strcmp (name, ">") == 0)
3875 {
3876 cmpltr = 3;
3877 }
4047ff1d 3878 else if (strcasecmp (name, "uv") == 0)
025b0302
ME		 3879 {
3880 cmpltr = 4;
3881 }
4047ff1d 3882 else if (strcasecmp (name, "vnz") == 0)
025b0302
ME		 3883 {
3884 cmpltr = 5;
3885 }
3886 else if (strcasecmp (name, "nsv") == 0)
3887 {
3888 cmpltr = 6;
3889 }
3890 else if (strcasecmp (name, "ev") == 0)
3891 {
3892 cmpltr = 7;
3893 }
5cf4cd1b 3894 /* If we have something like addb,n then there is no condition
8f78d0e9 3895 completer. */
5cf4cd1b
KR		 3896 else if (strcasecmp (name, "n") == 0 && isbranch)
3897 {
3898 cmpltr = 0;
3899 }
3900 else
3901 {
3902 cmpltr = -1;
3903 }
025b0302
ME		 3904 **s = c;
3905 }
025b0302 3906
5cf4cd1b
KR		 3907 /* Reset pointers if this was really a ,n for a branch instruction. */
3908 if (cmpltr == 0 && *name == 'n' && isbranch)
3909 *s = save_s;
3910
025b0302
ME		 3911 return cmpltr;
3912}
3913
8f78d0e9 3914/* Handle a .BLOCK type pseudo-op. */
025b0302 3915
8f78d0e9 3916static void
025b0302
ME		 3917pa_block (z)
3918 int z;
3919{
8f78d0e9
KR		 3920 char *p;
3921 long int temp_fill;
3922 unsigned int temp_size;
3923 int i;
025b0302
ME		 3924
3925 temp_size = get_absolute_expression ();
3926
8f78d0e9
KR		 3927 /* Always fill with zeros, that's what the HP assembler does. */
3928 temp_fill = 0;
025b0302 3929
c5e9ccd0 3930 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
8f78d0e9
KR		 3931 (relax_substateT) 0, (symbolS *) 0, 1, NULL);
3932 bzero (p, temp_size);
025b0302 3933
8f78d0e9 3934 /* Convert 2 bytes at a time. */
025b0302
ME		 3935
3936 for (i = 0; i < temp_size; i += 2)
3937 {
3938 md_number_to_chars (p + i,
8f78d0e9 3939 (valueT) temp_fill,
025b0302
ME		 3940 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
3941 }
3942
3943 pa_undefine_label ();
3944 demand_empty_rest_of_line ();
025b0302
ME		 3945}
3946
8f78d0e9
KR		 3947/* Handle a .CALL pseudo-op. This involves storing away information
3948 about where arguments are to be found so the linker can detect
3949 (and correct) argument location mismatches between caller and callee. */
025b0302 3950
8f78d0e9
KR		 3951static void
3952pa_call (unused)
3953 int unused;
3954{
025b0302
ME		 3955 pa_call_args (&last_call_desc);
3956 demand_empty_rest_of_line ();
025b0302
ME		 3957}
3958
8f78d0e9
KR		 3959/* Do the dirty work of building a call descriptor which describes
3960 where the caller placed arguments to a function call. */
3961
3962static void
025b0302 3963pa_call_args (call_desc)
8f78d0e9 3964 struct call_desc *call_desc;
025b0302 3965{
8f78d0e9
KR		 3966 char *name, c, *p;
3967 unsigned int temp, arg_reloc;
025b0302
ME		 3968
3969 while (!is_end_of_statement ())
3970 {
3971 name = input_line_pointer;
3972 c = get_symbol_end ();
8f78d0e9 3973 /* Process a source argument. */
025b0302
ME		 3974 if ((strncasecmp (name, "argw", 4) == 0))
3975 {
3976 temp = atoi (name + 4);
3977 p = input_line_pointer;
3978 *p = c;
3979 input_line_pointer++;
3980 name = input_line_pointer;
3981 c = get_symbol_end ();
3982 arg_reloc = pa_build_arg_reloc (name);
3983 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
3984 }
8f78d0e9 3985 /* Process a return value. */
025b0302
ME		 3986 else if ((strncasecmp (name, "rtnval", 6) == 0))
3987 {
3988 p = input_line_pointer;
3989 *p = c;
3990 input_line_pointer++;
3991 name = input_line_pointer;
3992 c = get_symbol_end ();
3993 arg_reloc = pa_build_arg_reloc (name);
3994 call_desc->arg_reloc |= (arg_reloc & 0x3);
3995 }
3996 else
3997 {
8f78d0e9 3998 as_bad ("Invalid .CALL argument: %s", name);
025b0302
ME		 3999 }
4000 p = input_line_pointer;
4001 *p = c;
4002 if (!is_end_of_statement ())
4003 input_line_pointer++;
4004 }
4005}
4006
8f78d0e9
KR		 4007/* Return TRUE if FRAG1 and FRAG2 are the same. */
4008
025b0302 4009static int
8f78d0e9
KR		 4010is_same_frag (frag1, frag2)
4011 fragS *frag1;
4012 fragS *frag2;
025b0302
ME		 4013{
4014
8f78d0e9 4015 if (frag1 == NULL)
025b0302 4016 return (FALSE);
8f78d0e9 4017 else if (frag2 == NULL)
025b0302 4018 return (FALSE);
8f78d0e9 4019 else if (frag1 == frag2)
025b0302 4020 return (TRUE);
8f78d0e9
KR		 4021 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
4022 return (is_same_frag (frag1, frag2->fr_next));
025b0302
ME		 4023 else
4024 return (FALSE);
4025}
4026
ff852e11
JL		 4027#ifdef OBJ_ELF
4028/* Build an entry in the UNWIND subspace from the given function
4029 attributes in CALL_INFO. This is not needed for SOM as using
4030 R_ENTRY and R_EXIT relocations allow the linker to handle building
4031 of the unwind spaces. */
c5e9ccd0 4032
025b0302
ME		 4033static void
4034pa_build_unwind_subspace (call_info)
8f78d0e9 4035 struct call_info *call_info;
025b0302 4036{
8f78d0e9
KR		 4037 char *unwind;
4038 asection *seg, *save_seg;
025b0302
ME		 4039 subsegT subseg, save_subseg;
4040 int i;
8f78d0e9
KR		 4041 char c, *p;
4042
4043 /* Get into the right seg/subseg. This may involve creating
4044 the seg the first time through. Make sure to have the
4045 old seg/subseg so that we can reset things when we are done. */
4046 subseg = SUBSEG_UNWIND;
4047 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
4048 if (seg == ASEC_NULL)
025b0302 4049 {
8f78d0e9
KR		 4050 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
4051 bfd_set_section_flags (stdoutput, seg,
4052 SEC_READONLY | SEC_HAS_CONTENTS
4053 | SEC_LOAD | SEC_RELOC);
025b0302
ME		 4054 }
4055
025b0302
ME		 4056 save_seg = now_seg;
4057 save_subseg = now_subseg;
80aab579 4058 subseg_set (seg, subseg);
025b0302 4059
8f78d0e9
KR		 4060
4061 /* Get some space to hold relocation information for the unwind
4062 descriptor. */
025b0302 4063 p = frag_more (4);
025b0302 4064
8f78d0e9 4065 /* Relocation info. for start offset of the function. */
8f78d0e9
KR		 4066 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4067 call_info->start_symbol, (offsetT) 0,
3315c7c7 4068 (expressionS *) NULL, 0, R_PARISC_DIR32, e_fsel, 32, 0,
8f78d0e9 4069 (char *) 0);
025b0302 4070
025b0302 4071 p = frag_more (4);
025b0302 4072
8f78d0e9 4073 /* Relocation info. for end offset of the function. */
8f78d0e9
KR		 4074 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4075 call_info->end_symbol, (offsetT) 0,
3315c7c7 4076 (expressionS *) NULL, 0, R_PARISC_DIR32, e_fsel, 32, 0,
8f78d0e9 4077 (char *) 0);
025b0302 4078
8f78d0e9
KR		 4079 /* Dump it. */
4080 unwind = (char *) &call_info->ci_unwind;
4081 for (i = 8; i < sizeof (struct unwind_table); i++)
025b0302 4082 {
8f78d0e9 4083 c = *(unwind + i);
025b0302
ME		 4084 {
4085 FRAG_APPEND_1_CHAR (c);
4086 }
4087 }
4088
8f78d0e9 4089 /* Return back to the original segment/subsegment. */
80aab579 4090 subseg_set (save_seg, save_subseg);
025b0302 4091}
ff852e11 4092#endif
025b0302 4093
8f78d0e9
KR		 4094/* Process a .CALLINFO pseudo-op. This information is used later
4095 to build unwind descriptors and maybe one day to support
4096 .ENTER and .LEAVE. */
025b0302 4097
8f78d0e9
KR		 4098static void
4099pa_callinfo (unused)
4100 int unused;
025b0302 4101{
8f78d0e9
KR		 4102 char *name, c, *p;
4103 int temp;
025b0302 4104
8f78d0e9 4105 /* .CALLINFO must appear within a procedure definition. */
025b0302
ME		 4106 if (!within_procedure)
4107 as_bad (".callinfo is not within a procedure definition");
4108
8f78d0e9
KR		 4109 /* Mark the fact that we found the .CALLINFO for the
4110 current procedure. */
025b0302
ME		 4111 callinfo_found = TRUE;
4112
8f78d0e9 4113 /* Iterate over the .CALLINFO arguments. */
025b0302
ME		 4114 while (!is_end_of_statement ())
4115 {
4116 name = input_line_pointer;
4117 c = get_symbol_end ();
8f78d0e9 4118 /* Frame size specification. */
025b0302
ME		 4119 if ((strncasecmp (name, "frame", 5) == 0))
4120 {
4121 p = input_line_pointer;
4122 *p = c;
4123 input_line_pointer++;
4124 temp = get_absolute_expression ();
4125 if ((temp & 0x3) != 0)
4126 {
4127 as_bad ("FRAME parameter must be a multiple of 8: %d\n", temp);
4128 temp = 0;
4129 }
49fc68a1 4130
c5e9ccd0 4131 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
49fc68a1
JL		 4132 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
4133
025b0302 4134 }
8f78d0e9 4135 /* Entry register (GR, GR and SR) specifications. */
025b0302
ME		 4136 else if ((strncasecmp (name, "entry_gr", 8) == 0))
4137 {
4138 p = input_line_pointer;
4139 *p = c;
4140 input_line_pointer++;
4141 temp = get_absolute_expression ();
aa8b30ed
JL		 4142 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4143 even though %r19 is caller saved. I think this is a bug in
4144 the HP assembler, and we are not going to emulate it. */
4145 if (temp < 3 || temp > 18)
4146 as_bad ("Value for ENTRY_GR must be in the range 3..18\n");
4147 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
025b0302
ME		 4148 }
4149 else if ((strncasecmp (name, "entry_fr", 8) == 0))
4150 {
4151 p = input_line_pointer;
4152 *p = c;
4153 input_line_pointer++;
4154 temp = get_absolute_expression ();
aa8b30ed
JL		 4155 /* Similarly the HP assembler takes 31 as the high bound even
4156 though %fr21 is the last callee saved floating point register. */
4157 if (temp < 12 || temp > 21)
4158 as_bad ("Value for ENTRY_FR must be in the range 12..21\n");
4159 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
025b0302
ME		 4160 }
4161 else if ((strncasecmp (name, "entry_sr", 8) == 0))
4162 {
4163 p = input_line_pointer;
4164 *p = c;
4165 input_line_pointer++;
4166 temp = get_absolute_expression ();
aa8b30ed
JL		 4167 if (temp != 3)
4168 as_bad ("Value for ENTRY_SR must be 3\n");
025b0302 4169 }
8f78d0e9 4170 /* Note whether or not this function performs any calls. */
025b0302
ME		 4171 else if ((strncasecmp (name, "calls", 5) == 0) ||
4172 (strncasecmp (name, "caller", 6) == 0))
4173 {
4174 p = input_line_pointer;
4175 *p = c;
025b0302
ME		 4176 }
4177 else if ((strncasecmp (name, "no_calls", 8) == 0))
4178 {
4179 p = input_line_pointer;
4180 *p = c;
025b0302 4181 }
8f78d0e9 4182 /* Should RP be saved into the stack. */
025b0302
ME		 4183 else if ((strncasecmp (name, "save_rp", 7) == 0))
4184 {
4185 p = input_line_pointer;
4186 *p = c;
4187 last_call_info->ci_unwind.descriptor.save_rp = 1;
4188 }
8f78d0e9 4189 /* Likewise for SP. */
025b0302
ME		 4190 else if ((strncasecmp (name, "save_sp", 7) == 0))
4191 {
4192 p = input_line_pointer;
4193 *p = c;
4194 last_call_info->ci_unwind.descriptor.save_sp = 1;
4195 }
8f78d0e9 4196 /* Is this an unwindable procedure. If so mark it so
c5e9ccd0 4197 in the unwind descriptor. */
025b0302
ME		 4198 else if ((strncasecmp (name, "no_unwind", 9) == 0))
4199 {
4200 p = input_line_pointer;
4201 *p = c;
4202 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
4203 }
8f78d0e9 4204 /* Is this an interrupt routine. If so mark it in the
c5e9ccd0 4205 unwind descriptor. */
025b0302
ME		 4206 else if ((strncasecmp (name, "hpux_int", 7) == 0))
4207 {
4208 p = input_line_pointer;
4209 *p = c;
8f78d0e9 4210 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
025b0302 4211 }
f2ada910
JL		 4212 /* Is this a millicode routine. "millicode" isn't in my
4213 assembler manual, but my copy is old. The HP assembler
4214 accepts it, and there's a place in the unwind descriptor
4215 to drop the information, so we'll accept it too. */
4216 else if ((strncasecmp (name, "millicode", 9) == 0))
4217 {
4218 p = input_line_pointer;
4219 *p = c;
4220 last_call_info->ci_unwind.descriptor.millicode = 1;
4221 }
025b0302
ME		 4222 else
4223 {
8f78d0e9 4224 as_bad ("Invalid .CALLINFO argument: %s", name);
f2ada910 4225 *input_line_pointer = c;
025b0302
ME		 4226 }
4227 if (!is_end_of_statement ())
4228 input_line_pointer++;
4229 }
4230
4231 demand_empty_rest_of_line ();
025b0302
ME		 4232}
4233
8f78d0e9
KR		 4234/* Switch into the code subspace. */
4235
4236static void
4237pa_code (unused)
4238 int unused;
025b0302 4239{
8f78d0e9 4240 sd_chain_struct *sdchain;
025b0302 4241
8f78d0e9
KR		 4242 /* First time through it might be necessary to create the
4243 $TEXT$ space. */
025b0302
ME		 4244 if ((sdchain = is_defined_space ("$TEXT$")) == NULL)
4245 {
8f78d0e9
KR		 4246 sdchain = create_new_space (pa_def_spaces[0].name,
4247 pa_def_spaces[0].spnum,
4248 pa_def_spaces[0].loadable,
4249 pa_def_spaces[0].defined,
4250 pa_def_spaces[0].private,
4251 pa_def_spaces[0].sort,
4252 pa_def_spaces[0].segment, 0);
025b0302
ME		 4253 }
4254
4255 SPACE_DEFINED (sdchain) = 1;
80aab579 4256 subseg_set (text_section, SUBSEG_CODE);
025b0302 4257 demand_empty_rest_of_line ();
025b0302
ME		 4258}
4259
8f78d0e9
KR		 4260/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4261 the .comm pseudo-op has the following symtax:
025b0302 4262
8f78d0e9
KR		 4263 <label> .comm <length>
4264
4265 where <label> is optional and is a symbol whose address will be the start of
4266 a block of memory <length> bytes long. <length> must be an absolute
4267 expression. <length> bytes will be allocated in the current space
4268 and subspace. */
4269
4270static void
4271pa_comm (unused)
4272 int unused;
025b0302 4273{
8f78d0e9
KR		 4274 unsigned int size;
4275 symbolS *symbol;
4276 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4277
8f78d0e9
KR		 4278 if (label_symbol)
4279 symbol = label_symbol->lss_label;
025b0302 4280 else
8f78d0e9 4281 symbol = NULL;
025b0302
ME		 4282
4283 SKIP_WHITESPACE ();
8f78d0e9 4284 size = get_absolute_expression ();
025b0302 4285
8f78d0e9 4286 if (symbol)
025b0302 4287 {
d56f45f5 4288 /* It is incorrect to check S_IS_DEFINED at this point as
c5e9ccd0
JL		 4289 the symbol will *always* be defined. FIXME. How to
4290 correctly determine when this label really as been
4291 defined before. */
8f78d0e9 4292 if (S_GET_VALUE (symbol))
025b0302 4293 {
8f78d0e9 4294 if (S_GET_VALUE (symbol) != size)
025b0302 4295 {
8f78d0e9
KR		 4296 as_warn ("Length of .comm \"%s\" is already %d. Not changed.",
4297 S_GET_NAME (symbol), S_GET_VALUE (symbol));
025b0302
ME		 4298 return;
4299 }
4300 }
4301 else
4302 {
8f78d0e9 4303 S_SET_VALUE (symbol, size);
aa8b30ed 4304 S_SET_SEGMENT (symbol, &bfd_und_section);
8f78d0e9 4305 S_SET_EXTERNAL (symbol);
025b0302 4306 }
025b0302 4307 }
025b0302
ME		 4308 demand_empty_rest_of_line ();
4309}
4310
8f78d0e9 4311/* Process a .END pseudo-op. */
025b0302 4312
8f78d0e9
KR		 4313static void
4314pa_end (unused)
4315 int unused;
4316{
025b0302 4317 demand_empty_rest_of_line ();
025b0302
ME		 4318}
4319
c5e9ccd0 4320/* Process a .ENTER pseudo-op. This is not supported. */
8f78d0e9
KR		 4321static void
4322pa_enter (unused)
4323 int unused;
025b0302 4324{
c5e9ccd0 4325 abort ();
025b0302
ME		 4326}
4327
8f78d0e9
KR		 4328/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4329 procesure. */
4330static void
4331pa_entry (unused)
4332 int unused;
025b0302 4333{
025b0302
ME		 4334 if (!within_procedure)
4335 as_bad ("Misplaced .entry. Ignored.");
4336 else
4337 {
4338 if (!callinfo_found)
4339 as_bad ("Missing .callinfo.");
025b0302
ME		 4340 }
4341 demand_empty_rest_of_line ();
4342 within_entry_exit = TRUE;
8f78d0e9 4343
ff852e11
JL		 4344#ifdef OBJ_SOM
4345 /* SOM defers building of unwind descriptors until the link phase.
4346 The assembler is responsible for creating an R_ENTRY relocation
4347 to mark the beginning of a region and hold the unwind bits, and
4348 for creating an R_EXIT relocation to mark the end of the region.
4349
4350 FIXME. ELF should be using the same conventions! The problem
4351 is an unwind requires too much relocation space. Hmmm. Maybe
4352 if we split the unwind bits up between the relocations which
4353 denote the entry and exit points. */
86066d06
JL		 4354 if (last_call_info->start_symbol != NULL)
4355 {
4356 char *where = frag_more (0);
c5e9ccd0 4357
86066d06
JL		 4358 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4359 last_call_info->start_symbol, (offsetT) 0, NULL,
4360 0, R_HPPA_ENTRY, e_fsel, 0, 0,
4361 (char *) &last_call_info->ci_unwind.descriptor);
4362 }
ff852e11 4363#endif
025b0302
ME		 4364}
4365
8f78d0e9
KR		 4366/* Handle a .EQU pseudo-op. */
4367
4368static void
025b0302
ME		 4369pa_equ (reg)
4370 int reg;
4371{
8f78d0e9
KR		 4372 label_symbol_struct *label_symbol = pa_get_label ();
4373 symbolS *symbol;
025b0302 4374
8f78d0e9 4375 if (label_symbol)
025b0302 4376 {
8f78d0e9 4377 symbol = label_symbol->lss_label;
c38c91da
JL		 4378 if (reg)
4379 S_SET_VALUE (symbol, pa_parse_number (&input_line_pointer, 0));
4380 else
4381 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
8f78d0e9 4382 S_SET_SEGMENT (symbol, &bfd_abs_section);
025b0302
ME		 4383 }
4384 else
4385 {
4386 if (reg)
4387 as_bad (".REG must use a label");
4388 else
4389 as_bad (".EQU must use a label");
4390 }
4391
4392 pa_undefine_label ();
4393 demand_empty_rest_of_line ();
025b0302
ME		 4394}
4395
8f78d0e9
KR		 4396/* Helper function. Does processing for the end of a function. This
4397 usually involves creating some relocations or building special
4398 symbols to mark the end of the function. */
4399
4400static void
025b0302
ME		 4401process_exit ()
4402{
4403 char *where;
4404
4405 where = frag_more (0);
aa8b30ed 4406
ff852e11 4407#ifdef OBJ_ELF
44c0de53
JL		 4408 /* Mark the end of the function, stuff away the location of the frag
4409 for the end of the function, and finally call pa_build_unwind_subspace
4410 to add an entry in the unwind table. */
4411 hppa_elf_mark_end_of_function ();
025b0302 4412 pa_build_unwind_subspace (last_call_info);
ff852e11
JL		 4413#else
4414 /* SOM defers building of unwind descriptors until the link phase.
4415 The assembler is responsible for creating an R_ENTRY relocation
4416 to mark the beginning of a region and hold the unwind bits, and
4417 for creating an R_EXIT relocation to mark the end of the region.
4418
4419 FIXME. ELF should be using the same conventions! The problem
4420 is an unwind requires too much relocation space. Hmmm. Maybe
4421 if we split the unwind bits up between the relocations which
4422 denote the entry and exit points. */
4423 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4424 last_call_info->start_symbol, (offsetT) 0,
4425 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0, NULL);
4426#endif
025b0302
ME		 4427}
4428
8f78d0e9 4429/* Process a .EXIT pseudo-op. */
025b0302 4430
8f78d0e9
KR		 4431static void
4432pa_exit (unused)
4433 int unused;
4434{
025b0302
ME		 4435 if (!within_procedure)
4436 as_bad (".EXIT must appear within a procedure");
4437 else
4438 {
4439 if (!callinfo_found)
4440 as_bad ("Missing .callinfo");
4441 else
4442 {
4443 if (!within_entry_exit)
4444 as_bad ("No .ENTRY for this .EXIT");
4445 else
4446 {
4447 within_entry_exit = FALSE;
4448 process_exit ();
4449 }
4450 }
4451 }
4452 demand_empty_rest_of_line ();
025b0302
ME		 4453}
4454
8f78d0e9
KR		 4455/* Process a .EXPORT directive. This makes functions external
4456 and provides information such as argument relocation entries
4457 to callers. */
5cf4cd1b 4458
8f78d0e9
KR		 4459static void
4460pa_export (unused)
4461 int unused;
025b0302 4462{
8f78d0e9
KR		 4463 char *name, c, *p;
4464 symbolS *symbol;
025b0302
ME		 4465
4466 name = input_line_pointer;
4467 c = get_symbol_end ();
8f78d0e9
KR		 4468 /* Make sure the given symbol exists. */
4469 if ((symbol = symbol_find_or_make (name)) == NULL)
025b0302
ME		 4470 {
4471 as_bad ("Cannot define export symbol: %s\n", name);
4472 p = input_line_pointer;
4473 *p = c;
4474 input_line_pointer++;
4475 }
4476 else
4477 {
8f78d0e9
KR		 4478 /* OK. Set the external bits and process argument relocations. */
4479 S_SET_EXTERNAL (symbol);
025b0302
ME		 4480 p = input_line_pointer;
4481 *p = c;
4482 if (!is_end_of_statement ())
4483 {
4484 input_line_pointer++;
48153d49 4485 pa_type_args (symbol, 1);
025b0302
ME		 4486 }
4487 }
4488
4489 demand_empty_rest_of_line ();
025b0302
ME		 4490}
4491
8f78d0e9
KR		 4492/* Helper function to process arguments to a .EXPORT pseudo-op. */
4493
4494static void
48153d49 4495pa_type_args (symbolP, is_export)
8f78d0e9 4496 symbolS *symbolP;
48153d49 4497 int is_export;
025b0302 4498{
8f78d0e9
KR		 4499 char *name, c, *p;
4500 unsigned int temp, arg_reloc;
e75acd68 4501 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
8f78d0e9 4502 obj_symbol_type *symbol = (obj_symbol_type *) symbolP->bsym;
025b0302
ME		 4503
4504 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
48153d49 4505
025b0302
ME		 4506 {
4507 input_line_pointer += 8;
9a182533 4508 symbolP->bsym->flags &= ~BSF_FUNCTION;
025b0302 4509 S_SET_SEGMENT (symbolP, &bfd_abs_section);
e75acd68 4510 type = SYMBOL_TYPE_ABSOLUTE;
025b0302
ME		 4511 }
4512 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
9a182533
JL		 4513 {
4514 input_line_pointer += 4;
a721c80b 4515 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
c5e9ccd0 4516 instead one should be IMPORTing/EXPORTing ENTRY types.
a721c80b 4517
c5e9ccd0
JL		 4518 Complain if one tries to EXPORT a CODE type since that's never
4519 done. Both GCC and HP C still try to IMPORT CODE types, so
4520 silently fix them to be ENTRY types. */
a721c80b 4521 if (symbolP->bsym->flags & BSF_FUNCTION)
48153d49 4522 {
a721c80b
JL		 4523 if (is_export)
4524 as_tsktsk ("Using ENTRY rather than CODE in export directive for %s", symbolP->bsym->name);
4525
48153d49
JL		 4526 symbolP->bsym->flags |= BSF_FUNCTION;
4527 type = SYMBOL_TYPE_ENTRY;
4528 }
4529 else
4530 {
4531 symbolP->bsym->flags &= ~BSF_FUNCTION;
4532 type = SYMBOL_TYPE_CODE;
4533 }
9a182533 4534 }
025b0302 4535 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
9a182533
JL		 4536 {
4537 input_line_pointer += 4;
4538 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4539 type = SYMBOL_TYPE_DATA;
9a182533 4540 }
025b0302
ME		 4541 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
4542 {
4543 input_line_pointer += 5;
025b0302 4544 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4545 type = SYMBOL_TYPE_ENTRY;
025b0302
ME		 4546 }
4547 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
4548 {
4549 input_line_pointer += 9;
9a182533 4550 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4551 type = SYMBOL_TYPE_MILLICODE;
025b0302
ME		 4552 }
4553 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
4554 {
4555 input_line_pointer += 6;
9a182533 4556 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4557 type = SYMBOL_TYPE_PLABEL;
025b0302
ME		 4558 }
4559 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
4560 {
4561 input_line_pointer += 8;
9a182533 4562 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4563 type = SYMBOL_TYPE_PRI_PROG;
025b0302
ME		 4564 }
4565 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
4566 {
4567 input_line_pointer += 8;
9a182533 4568 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4569 type = SYMBOL_TYPE_SEC_PROG;
025b0302
ME		 4570 }
4571
e75acd68
JL		 4572 /* SOM requires much more information about symbol types
4573 than BFD understands. This is how we get this information
4574 to the SOM BFD backend. */
4575#ifdef obj_set_symbol_type
4576 obj_set_symbol_type (symbolP->bsym, (int) type);
4577#endif
4578
8f78d0e9
KR		 4579 /* Now that the type of the exported symbol has been handled,
4580 handle any argument relocation information. */
025b0302
ME		 4581 while (!is_end_of_statement ())
4582 {
4583 if (*input_line_pointer == ',')
4584 input_line_pointer++;
4585 name = input_line_pointer;
4586 c = get_symbol_end ();
8f78d0e9 4587 /* Argument sources. */
025b0302
ME		 4588 if ((strncasecmp (name, "argw", 4) == 0))
4589 {
4590 p = input_line_pointer;
4591 *p = c;
4592 input_line_pointer++;
4593 temp = atoi (name + 4);
4594 name = input_line_pointer;
4595 c = get_symbol_end ();
4596 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
8f78d0e9 4597 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4598 *input_line_pointer = c;
4599 }
8f78d0e9 4600 /* The return value. */
025b0302
ME		 4601 else if ((strncasecmp (name, "rtnval", 6)) == 0)
4602 {
4603 p = input_line_pointer;
4604 *p = c;
4605 input_line_pointer++;
4606 name = input_line_pointer;
4607 c = get_symbol_end ();
4608 arg_reloc = pa_build_arg_reloc (name);
8f78d0e9 4609 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4610 *input_line_pointer = c;
4611 }
8f78d0e9 4612 /* Privelege level. */
025b0302
ME		 4613 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
4614 {
4615 p = input_line_pointer;
4616 *p = c;
4617 input_line_pointer++;
025b0302
ME		 4618 temp = atoi (input_line_pointer);
4619 c = get_symbol_end ();
4620 *input_line_pointer = c;
025b0302
ME		 4621 }
4622 else
4623 {
4624 as_bad ("Undefined .EXPORT/.IMPORT argument (ignored): %s", name);
4625 p = input_line_pointer;
4626 *p = c;
4627 }
4628 if (!is_end_of_statement ())
4629 input_line_pointer++;
4630 }
4631}
4632
8f78d0e9
KR		 4633/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
4634 assembly file must either be defined in the assembly file, or
4635 explicitly IMPORTED from another. */
4636
4637static void
4638pa_import (unused)
4639 int unused;
025b0302 4640{
8f78d0e9
KR		 4641 char *name, c, *p;
4642 symbolS *symbol;
025b0302
ME		 4643
4644 name = input_line_pointer;
4645 c = get_symbol_end ();
025b0302 4646
49ccc555
JL		 4647 symbol = symbol_find (name);
4648 /* Ugh. We might be importing a symbol defined earlier in the file,
4649 in which case all the code below will really screw things up
4650 (set the wrong segment, symbol flags & type, etc). */
4651 if (symbol == NULL || !S_IS_DEFINED (symbol))
025b0302 4652 {
49ccc555
JL		 4653 symbol = symbol_find_or_make (name);
4654 p = input_line_pointer;
4655 *p = c;
4656
4657 if (!is_end_of_statement ())
4658 {
4659 input_line_pointer++;
4660 pa_type_args (symbol, 0);
4661 }
4662 else
4663 {
4664 /* Sigh. To be compatable with the HP assembler and to help
4665 poorly written assembly code, we assign a type based on
4666 the the current segment. Note only BSF_FUNCTION really
4667 matters, we do not need to set the full SYMBOL_TYPE_* info. */
4668 if (now_seg == text_section)
4669 symbol->bsym->flags |= BSF_FUNCTION;
4670
4671 /* If the section is undefined, then the symbol is undefined
4672 Since this is an import, leave the section undefined. */
4673 S_SET_SEGMENT (symbol, &bfd_und_section);
4674 }
025b0302
ME		 4675 }
4676 else
4677 {
49ccc555
JL		 4678 /* The symbol was already defined. Just eat everything up to
4679 the end of the current statement. */
4680 while (!is_end_of_statement ())
4681 input_line_pointer++;
025b0302
ME		 4682 }
4683
025b0302 4684 demand_empty_rest_of_line ();
025b0302
ME		 4685}
4686
8f78d0e9
KR		 4687/* Handle a .LABEL pseudo-op. */
4688
4689static void
4690pa_label (unused)
4691 int unused;
025b0302 4692{
8f78d0e9 4693 char *name, c, *p;
025b0302
ME		 4694
4695 name = input_line_pointer;
4696 c = get_symbol_end ();
025b0302
ME		 4697
4698 if (strlen (name) > 0)
4699 {
4700 colon (name);
4701 p = input_line_pointer;
4702 *p = c;
4703 }
4704 else
4705 {
4706 as_warn ("Missing label name on .LABEL");
4707 }
4708
4709 if (!is_end_of_statement ())
4710 {
4711 as_warn ("extra .LABEL arguments ignored.");
4712 ignore_rest_of_line ();
4713 }
4714 demand_empty_rest_of_line ();
025b0302
ME		 4715}
4716
8f78d0e9 4717/* Handle a .LEAVE pseudo-op. This is not supported yet. */
025b0302 4718
8f78d0e9
KR		 4719static void
4720pa_leave (unused)
4721 int unused;
4722{
c5e9ccd0 4723 abort ();
025b0302
ME		 4724}
4725
8f78d0e9
KR		 4726/* Handle a .ORIGIN pseudo-op. */
4727
4728static void
4729pa_origin (unused)
4730 int unused;
025b0302 4731{
8f78d0e9 4732 s_org (0);
025b0302 4733 pa_undefine_label ();
025b0302
ME		 4734}
4735
8f78d0e9
KR		 4736/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
4737 is for static functions. FIXME. Should share more code with .EXPORT. */
5cf4cd1b 4738
8f78d0e9
KR		 4739static void
4740pa_param (unused)
4741 int unused;
5cf4cd1b 4742{
8f78d0e9
KR		 4743 char *name, c, *p;
4744 symbolS *symbol;
5cf4cd1b
KR		 4745
4746 name = input_line_pointer;
4747 c = get_symbol_end ();
5cf4cd1b 4748
8f78d0e9 4749 if ((symbol = symbol_find_or_make (name)) == NULL)
5cf4cd1b
KR		 4750 {
4751 as_bad ("Cannot define static symbol: %s\n", name);
4752 p = input_line_pointer;
4753 *p = c;
4754 input_line_pointer++;
4755 }
4756 else
4757 {
8f78d0e9 4758 S_CLEAR_EXTERNAL (symbol);
5cf4cd1b
KR		 4759 p = input_line_pointer;
4760 *p = c;
4761 if (!is_end_of_statement ())
4762 {
4763 input_line_pointer++;
48153d49 4764 pa_type_args (symbol, 0);
5cf4cd1b
KR		 4765 }
4766 }
4767
4768 demand_empty_rest_of_line ();
5cf4cd1b
KR		 4769}
4770
8f78d0e9
KR		 4771/* Handle a .PROC pseudo-op. It is used to mark the beginning
4772 of a procedure from a syntatical point of view. */
4773
4774static void
4775pa_proc (unused)
4776 int unused;
025b0302 4777{
8f78d0e9 4778 struct call_info *call_info;
86066d06 4779 segT seg;
025b0302
ME		 4780
4781 if (within_procedure)
4782 as_fatal ("Nested procedures");
4783
8f78d0e9 4784 /* Reset global variables for new procedure. */
025b0302
ME		 4785 callinfo_found = FALSE;
4786 within_procedure = TRUE;
025b0302 4787
2f156c92
JL		 4788#if 0
4789 Enabling this code creates severe problems with GDB. It appears as if
4790 inserting linker stubs between functions within a single .o makes GDB
4791 blow chunks.
4792
86066d06
JL		 4793 /* Create a new CODE subspace for each procedure if we are not
4794 using space/subspace aliases. */
4795 if (!USE_ALIASES && call_info_root != NULL)
4796 {
4797 /* Force creation of a new $CODE$ subspace; inherit attributes from
4798 the first $CODE$ subspace. */
4799 seg = subseg_force_new ("$CODE$", 0);
4800
4801 /* Now set the flags. */
4802 bfd_set_section_flags (stdoutput, seg,
4803 bfd_get_section_flags (abfd, text_section));
4804
4805 /* Record any alignment request for this section. */
4806 record_alignment (seg,
4807 bfd_get_section_alignment (stdoutput, text_section));
4808
4809 /* Change the "text_section" to be our new $CODE$ subspace. */
4810 text_section = seg;
4811 subseg_set (text_section, 0);
4812
4813#ifdef obj_set_subsection_attributes
4814 /* Need a way to inherit the the access bits, sort key and quadrant
4815 from the first $CODE$ subspace. FIXME. */
4816 obj_set_subsection_attributes (seg, current_space->sd_seg, 0x2c, 24, 0);
4817#endif
4818 }
2f156c92 4819#endif
86066d06 4820
8f78d0e9
KR		 4821 /* Create another call_info structure. */
4822 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
025b0302
ME		 4823
4824 if (!call_info)
4825 as_fatal ("Cannot allocate unwind descriptor\n");
4826
8f78d0e9 4827 bzero (call_info, sizeof (struct call_info));
025b0302
ME		 4828
4829 call_info->ci_next = NULL;
4830
4831 if (call_info_root == NULL)
4832 {
4833 call_info_root = call_info;
4834 last_call_info = call_info;
4835 }
4836 else
4837 {
4838 last_call_info->ci_next = call_info;
4839 last_call_info = call_info;
4840 }
4841
4842 /* set up defaults on call_info structure */
4843
4844 call_info->ci_unwind.descriptor.cannot_unwind = 0;
4845 call_info->ci_unwind.descriptor.region_desc = 1;
8f78d0e9 4846 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
025b0302
ME		 4847
4848 /* If we got a .PROC pseudo-op, we know that the function is defined
8f78d0e9 4849 locally. Make sure it gets into the symbol table. */
025b0302 4850 {
8f78d0e9 4851 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4852
8f78d0e9 4853 if (label_symbol)
025b0302 4854 {
8f78d0e9 4855 if (label_symbol->lss_label)
025b0302 4856 {
8f78d0e9
KR		 4857 last_call_info->start_symbol = label_symbol->lss_label;
4858 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
2f156c92 4859#if 0
86066d06
JL		 4860 if (! USE_ALIASES)
4861 {
4862 /* The label was defined in a different segment. Fix that
4863 along with the value and associated fragment. */
4864 S_SET_SEGMENT (last_call_info->start_symbol, now_seg);
4865 S_SET_VALUE (last_call_info->start_symbol,
4866 ((char*)obstack_next_free (&frags)
4867 - frag_now->fr_literal));
4868 last_call_info->start_symbol->sy_frag = frag_now;
4869 }
2f156c92 4870#endif
025b0302
ME		 4871 }
4872 else
4047ff1d 4873 as_bad ("Missing function name for .PROC (corrupted label chain)");
025b0302
ME		 4874 }
4875 else
4047ff1d 4876 last_call_info->start_symbol = NULL;
025b0302
ME		 4877 }
4878
4879 demand_empty_rest_of_line ();
025b0302
ME		 4880}
4881
8f78d0e9
KR		 4882/* Process the syntatical end of a procedure. Make sure all the
4883 appropriate pseudo-ops were found within the procedure. */
4884
4885static void
4886pa_procend (unused)
4887 int unused;
025b0302
ME		 4888{
4889
caed9e82
JL		 4890 /* If we are within a procedure definition, make sure we've
4891 defined a label for the procedure; handle case where the
4892 label was defined after the .PROC directive.
4893
4894 Note there's not need to diddle with the segment or fragment
4895 for the label symbol in this case. We have already switched
4896 into the new $CODE$ subspace at this point. */
4897 if (within_procedure && last_call_info->start_symbol == NULL)
4898 {
4899 label_symbol_struct *label_symbol = pa_get_label ();
4900
4901 if (label_symbol)
4902 {
4903 if (label_symbol->lss_label)
4904 {
4905 last_call_info->start_symbol = label_symbol->lss_label;
4906 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
4907#ifdef OBJ_SOM
4908 /* Also handle allocation of a fixup to hold the unwind
4909 information when the label appears after the proc/procend. */
4910 if (within_entry_exit)
4911 {
4912 char *where = frag_more (0);
4913
4914 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4915 last_call_info->start_symbol, (offsetT) 0, NULL,
4916 0, R_HPPA_ENTRY, e_fsel, 0, 0,
4917 (char *) &last_call_info->ci_unwind.descriptor);
4918 }
4919#endif
4920 }
4921 else
4922 as_bad ("Missing function name for .PROC (corrupted label chain)");
4923 }
4924 else
4925 as_bad ("Missing function name for .PROC");
4926 }
05210990 4927
025b0302
ME		 4928 if (!within_procedure)
4929 as_bad ("misplaced .procend");
4930
4931 if (!callinfo_found)
4932 as_bad ("Missing .callinfo for this procedure");
4933
4934 if (within_entry_exit)
4935 as_bad ("Missing .EXIT for a .ENTRY");
4936
44c0de53
JL		 4937#ifdef OBJ_ELF
4938 /* ELF needs to mark the end of each function so that it can compute
4939 the size of the function (apparently its needed in the symbol table. */
4940 hppa_elf_mark_end_of_function ();
4941#endif
4942
025b0302
ME		 4943 within_procedure = FALSE;
4944 demand_empty_rest_of_line ();
fca59f9d 4945 pa_undefine_label ();
025b0302
ME		 4946}
4947
8f78d0e9
KR		 4948/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
4949 then create a new space entry to hold the information specified
4950 by the parameters to the .SPACE directive. */
4951
4952static sd_chain_struct *
025b0302
ME		 4953pa_parse_space_stmt (space_name, create_flag)
4954 char *space_name;
4955 int create_flag;
4956{
8f78d0e9
KR		 4957 char *name, *ptemp, c;
4958 char loadable, defined, private, sort;
9de7c1fc 4959 int spnum, temp;
3b9a72c5 4960 asection *seg = NULL;
8f78d0e9 4961 sd_chain_struct *space;
025b0302
ME		 4962
4963 /* load default values */
4964 spnum = 0;
3b9a72c5 4965 sort = 0;
025b0302
ME		 4966 loadable = TRUE;
4967 defined = TRUE;
4968 private = FALSE;
4047ff1d 4969 if (strcmp (space_name, "$TEXT$") == 0)
025b0302 4970 {
0f3b419c 4971 seg = pa_def_spaces[0].segment;
9de7c1fc
JL		 4972 defined = pa_def_spaces[0].defined;
4973 private = pa_def_spaces[0].private;
0f3b419c 4974 sort = pa_def_spaces[0].sort;
9de7c1fc 4975 spnum = pa_def_spaces[0].spnum;
025b0302 4976 }
4047ff1d 4977 else if (strcmp (space_name, "$PRIVATE$") == 0)
025b0302 4978 {
0f3b419c 4979 seg = pa_def_spaces[1].segment;
9de7c1fc
JL		 4980 defined = pa_def_spaces[1].defined;
4981 private = pa_def_spaces[1].private;
0f3b419c 4982 sort = pa_def_spaces[1].sort;
9de7c1fc 4983 spnum = pa_def_spaces[1].spnum;
025b0302
ME		 4984 }
4985
4986 if (!is_end_of_statement ())
4987 {
4988 print_errors = FALSE;
4989 ptemp = input_line_pointer + 1;
8f78d0e9
KR		 4990 /* First see if the space was specified as a number rather than
4991 as a name. According to the PA assembly manual the rest of
4992 the line should be ignored. */
9de7c1fc
JL		 4993 temp = pa_parse_number (&ptemp, 0);
4994 if (temp >= 0)
4995 {
4996 spnum = temp;
4997 input_line_pointer = ptemp;
4998 }
025b0302
ME		 4999 else
5000 {
5001 while (!is_end_of_statement ())
5002 {
5003 input_line_pointer++;
5004 name = input_line_pointer;
5005 c = get_symbol_end ();
4047ff1d 5006 if ((strncasecmp (name, "spnum", 5) == 0))
025b0302 5007 {
8f78d0e9 5008 *input_line_pointer = c;
025b0302 5009 input_line_pointer++;
8f78d0e9 5010 spnum = get_absolute_expression ();
025b0302 5011 }
4047ff1d 5012 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302 5013 {
8f78d0e9 5014 *input_line_pointer = c;
025b0302 5015 input_line_pointer++;
8f78d0e9 5016 sort = get_absolute_expression ();
025b0302 5017 }
4047ff1d 5018 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302 5019 {
8f78d0e9 5020 *input_line_pointer = c;
025b0302
ME		 5021 loadable = FALSE;
5022 }
4047ff1d 5023 else if ((strncasecmp (name, "notdefined", 10) == 0))
025b0302 5024 {
8f78d0e9 5025 *input_line_pointer = c;
025b0302
ME		 5026 defined = FALSE;
5027 }
4047ff1d 5028 else if ((strncasecmp (name, "private", 7) == 0))
025b0302 5029 {
8f78d0e9 5030 *input_line_pointer = c;
025b0302
ME		 5031 private = TRUE;
5032 }
5033 else
3515a504
JL		 5034 {
5035 as_bad ("Invalid .SPACE argument");
5036 *input_line_pointer = c;
c5e9ccd0 5037 if (!is_end_of_statement ())
3515a504
JL		 5038 input_line_pointer++;
5039 }
025b0302
ME		 5040 }
5041 }
5042 print_errors = TRUE;
5043 }
8f78d0e9 5044
3b9a72c5
JL		 5045 if (create_flag && seg == NULL)
5046 seg = subseg_new (space_name, 0);
c5e9ccd0 5047
8f78d0e9
KR		 5048 /* If create_flag is nonzero, then create the new space with
5049 the attributes computed above. Else set the values in
5050 an already existing space -- this can only happen for
5051 the first occurence of a built-in space. */
025b0302 5052 if (create_flag)
8f78d0e9
KR		 5053 space = create_new_space (space_name, spnum, loadable, defined,
5054 private, sort, seg, 1);
025b0302 5055 else
8f78d0e9 5056 {
025b0302
ME		 5057 space = is_defined_space (space_name);
5058 SPACE_SPNUM (space) = spnum;
025b0302 5059 SPACE_DEFINED (space) = defined & 1;
8f78d0e9 5060 SPACE_USER_DEFINED (space) = 1;
025b0302 5061 }
548ea75b
JL		 5062
5063#ifdef obj_set_section_attributes
5064 obj_set_section_attributes (seg, defined, private, sort, spnum);
5065#endif
5066
025b0302
ME		 5067 return space;
5068}
5069
8f78d0e9
KR		 5070/* Handle a .SPACE pseudo-op; this switches the current space to the
5071 given space, creating the new space if necessary. */
5072
5073static void
5074pa_space (unused)
5075 int unused;
025b0302 5076{
aa8b30ed 5077 char *name, c, *space_name, *save_s;
8f78d0e9
KR		 5078 int temp;
5079 sd_chain_struct *sd_chain;
025b0302
ME		 5080
5081 if (within_procedure)
5082 {
5083 as_bad ("Can\'t change spaces within a procedure definition. Ignored");
5084 ignore_rest_of_line ();
5085 }
5086 else
5087 {
8f78d0e9
KR		 5088 /* Check for some of the predefined spaces. FIXME: most of the code
5089 below is repeated several times, can we extract the common parts
5090 and place them into a subroutine or something similar? */
4047ff1d
JL		 5091 /* FIXME Is this (and the next IF stmt) really right?
5092 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5093 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
025b0302
ME		 5094 {
5095 input_line_pointer += 6;
5096 sd_chain = is_defined_space ("$TEXT$");
5097 if (sd_chain == NULL)
5098 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
8f78d0e9 5099 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5100 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
5101
5102 current_space = sd_chain;
80aab579 5103 subseg_set (text_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5104 current_subspace
5105 = pa_subsegment_to_subspace (text_section,
5106 sd_chain->sd_last_subseg);
025b0302
ME		 5107 demand_empty_rest_of_line ();
5108 return;
5109 }
4047ff1d 5110 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
025b0302
ME		 5111 {
5112 input_line_pointer += 9;
5113 sd_chain = is_defined_space ("$PRIVATE$");
5114 if (sd_chain == NULL)
5115 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
8f78d0e9 5116 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5117 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
5118
5119 current_space = sd_chain;
80aab579 5120 subseg_set (data_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5121 current_subspace
5122 = pa_subsegment_to_subspace (data_section,
5123 sd_chain->sd_last_subseg);
025b0302
ME		 5124 demand_empty_rest_of_line ();
5125 return;
5126 }
8f78d0e9
KR		 5127 if (!strncasecmp (input_line_pointer,
5128 GDB_DEBUG_SPACE_NAME,
5129 strlen (GDB_DEBUG_SPACE_NAME)))
025b0302
ME		 5130 {
5131 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
5132 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
5133 if (sd_chain == NULL)
5134 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
8f78d0e9 5135 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5136 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
5137
5138 current_space = sd_chain;
80aab579 5139
5cf4cd1b 5140 {
8f78d0e9
KR		 5141 asection *gdb_section
5142 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
5143
8f78d0e9
KR		 5144 subseg_set (gdb_section, sd_chain->sd_last_subseg);
5145 current_subspace
5146 = pa_subsegment_to_subspace (gdb_section,
5147 sd_chain->sd_last_subseg);
5cf4cd1b 5148 }
025b0302
ME		 5149 demand_empty_rest_of_line ();
5150 return;
5151 }
5152
8f78d0e9 5153 /* It could be a space specified by number. */
aa8b30ed
JL		 5154 print_errors = 0;
5155 save_s = input_line_pointer;
8f78d0e9 5156 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
025b0302
ME		 5157 {
5158 if (sd_chain = pa_find_space_by_number (temp))
5159 {
5160 current_space = sd_chain;
8f78d0e9 5161
80aab579 5162 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5163 current_subspace
5164 = pa_subsegment_to_subspace (sd_chain->sd_seg,
5165 sd_chain->sd_last_subseg);
025b0302
ME		 5166 demand_empty_rest_of_line ();
5167 return;
5168 }
5169 }
5170
8f78d0e9 5171 /* Not a number, attempt to create a new space. */
aa8b30ed
JL		 5172 print_errors = 1;
5173 input_line_pointer = save_s;
025b0302
ME		 5174 name = input_line_pointer;
5175 c = get_symbol_end ();
8f78d0e9 5176 space_name = xmalloc (strlen (name) + 1);
025b0302
ME		 5177 strcpy (space_name, name);
5178 *input_line_pointer = c;
5179
5180 sd_chain = pa_parse_space_stmt (space_name, 1);
5181 current_space = sd_chain;
8f78d0e9 5182
80aab579 5183 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
025b0302
ME		 5184 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
5185 sd_chain->sd_last_subseg);
5186 demand_empty_rest_of_line ();
5187 }
025b0302
ME		 5188}
5189
c5e9ccd0 5190/* Switch to a new space. (I think). FIXME. */
8f78d0e9
KR		 5191
5192static void
5193pa_spnum (unused)
5194 int unused;
025b0302 5195{
8f78d0e9
KR		 5196 char *name;
5197 char c;
5198 char *p;
5199 sd_chain_struct *space;
025b0302
ME		 5200
5201 name = input_line_pointer;
5202 c = get_symbol_end ();
5203 space = is_defined_space (name);
5204 if (space)
5205 {
5206 p = frag_more (4);
025b0302
ME		 5207 md_number_to_chars (p, SPACE_SPNUM (space), 4);
5208 }
5209 else
5210 as_warn ("Undefined space: '%s' Assuming space number = 0.", name);
5211
5212 *input_line_pointer = c;
5213 demand_empty_rest_of_line ();
025b0302
ME		 5214}
5215
8f78d0e9 5216/* If VALUE is an exact power of two between zero and 2^31, then
aa8b30ed 5217 return log2 (VALUE). Else return -1. */
8f78d0e9
KR		 5218
5219static int
aa8b30ed 5220log2 (value)
025b0302
ME		 5221 int value;
5222{
8f78d0e9 5223 int shift = 0;
025b0302 5224
025b0302
ME		 5225 while ((1 << shift) != value && shift < 32)
5226 shift++;
5227
5228 if (shift >= 32)
aa8b30ed 5229 return -1;
8f78d0e9 5230 else
aa8b30ed 5231 return shift;
025b0302
ME		 5232}
5233
3b9a72c5 5234/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
8f78d0e9
KR		 5235 given subspace, creating the new subspace if necessary.
5236
5237 FIXME. Should mirror pa_space more closely, in particular how
5238 they're broken up into subroutines. */
5239
5240static void
5241pa_subspace (unused)
5242 int unused;
025b0302 5243{
3b9a72c5 5244 char *name, *ss_name, *alias, c;
8f78d0e9 5245 char loadable, code_only, common, dup_common, zero, sort;
3b9a72c5 5246 int i, access, space_index, alignment, quadrant, applicable, flags;
8f78d0e9
KR		 5247 sd_chain_struct *space;
5248 ssd_chain_struct *ssd;
3b9a72c5 5249 asection *section;
025b0302
ME		 5250
5251 if (within_procedure)
5252 {
5253 as_bad ("Can\'t change subspaces within a procedure definition. Ignored");
5254 ignore_rest_of_line ();
5255 }
5256 else
5257 {
5258 name = input_line_pointer;
5259 c = get_symbol_end ();
025b0302
ME		 5260 ss_name = xmalloc (strlen (name) + 1);
5261 strcpy (ss_name, name);
025b0302
ME		 5262 *input_line_pointer = c;
5263
8f78d0e9 5264 /* Load default values. */
025b0302
ME		 5265 sort = 0;
5266 access = 0x7f;
5267 loadable = 1;
5268 common = 0;
5269 dup_common = 0;
5270 code_only = 0;
5271 zero = 0;
8f78d0e9
KR		 5272 space_index = ~0;
5273 alignment = 0;
025b0302 5274 quadrant = 0;
3b9a72c5 5275 alias = NULL;
025b0302 5276
3b9a72c5 5277 space = current_space;
47f45d66
JL		 5278 ssd = is_defined_subspace (ss_name);
5279 /* Allow user to override the builtin attributes of subspaces. But
c5e9ccd0 5280 only allow the attributes to be changed once! */
47f45d66 5281 if (ssd && SUBSPACE_DEFINED (ssd))
025b0302 5282 {
8f78d0e9
KR		 5283 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
5284 if (!is_end_of_statement ())
5285 as_warn ("Parameters of an existing subspace can\'t be modified");
5286 demand_empty_rest_of_line ();
5287 return;
025b0302
ME		 5288 }
5289 else
5290 {
3b9a72c5
JL		 5291 /* A new subspace. Load default values if it matches one of
5292 the builtin subspaces. */
025b0302
ME		 5293 i = 0;
5294 while (pa_def_subspaces[i].name)
5295 {
5296 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
5297 {
5298 loadable = pa_def_subspaces[i].loadable;
5299 common = pa_def_subspaces[i].common;
5300 dup_common = pa_def_subspaces[i].dup_common;
5301 code_only = pa_def_subspaces[i].code_only;
5302 zero = pa_def_subspaces[i].zero;
5303 space_index = pa_def_subspaces[i].space_index;
8f78d0e9 5304 alignment = pa_def_subspaces[i].alignment;
025b0302
ME		 5305 quadrant = pa_def_subspaces[i].quadrant;
5306 access = pa_def_subspaces[i].access;
5307 sort = pa_def_subspaces[i].sort;
3b9a72c5
JL		 5308 if (USE_ALIASES && pa_def_subspaces[i].alias)
5309 alias = pa_def_subspaces[i].alias;
025b0302
ME		 5310 break;
5311 }
5312 i++;
5313 }
5314 }
5315
8f78d0e9
KR		 5316 /* We should be working with a new subspace now. Fill in
5317 any information as specified by the user. */
025b0302
ME		 5318 if (!is_end_of_statement ())
5319 {
5320 input_line_pointer++;
5321 while (!is_end_of_statement ())
5322 {
5323 name = input_line_pointer;
5324 c = get_symbol_end ();
4047ff1d 5325 if ((strncasecmp (name, "quad", 4) == 0))
025b0302
ME		 5326 {
5327 *input_line_pointer = c;
5328 input_line_pointer++;
8f78d0e9 5329 quadrant = get_absolute_expression ();
025b0302 5330 }
4047ff1d 5331 else if ((strncasecmp (name, "align", 5) == 0))
025b0302
ME		 5332 {
5333 *input_line_pointer = c;
5334 input_line_pointer++;
8f78d0e9 5335 alignment = get_absolute_expression ();
aa8b30ed 5336 if (log2 (alignment) == -1)
025b0302
ME		 5337 {
5338 as_bad ("Alignment must be a power of 2");
5339 alignment = 1;
5340 }
5341 }
4047ff1d 5342 else if ((strncasecmp (name, "access", 6) == 0))
025b0302
ME		 5343 {
5344 *input_line_pointer = c;
5345 input_line_pointer++;
8f78d0e9 5346 access = get_absolute_expression ();
025b0302 5347 }
4047ff1d 5348 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302
ME		 5349 {
5350 *input_line_pointer = c;
5351 input_line_pointer++;
8f78d0e9 5352 sort = get_absolute_expression ();
025b0302 5353 }
4047ff1d 5354 else if ((strncasecmp (name, "code_only", 9) == 0))
025b0302
ME		 5355 {
5356 *input_line_pointer = c;
5357 code_only = 1;
5358 }
4047ff1d 5359 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302
ME		 5360 {
5361 *input_line_pointer = c;
5362 loadable = 0;
5363 }
4047ff1d 5364 else if ((strncasecmp (name, "common", 6) == 0))
025b0302
ME		 5365 {
5366 *input_line_pointer = c;
5367 common = 1;
5368 }
4047ff1d 5369 else if ((strncasecmp (name, "dup_comm", 8) == 0))
025b0302
ME		 5370 {
5371 *input_line_pointer = c;
5372 dup_common = 1;
5373 }
4047ff1d 5374 else if ((strncasecmp (name, "zero", 4) == 0))
025b0302
ME		 5375 {
5376 *input_line_pointer = c;
5377 zero = 1;
5378 }
4047ff1d 5379 else if ((strncasecmp (name, "first", 5) == 0))
8f78d0e9 5380 as_bad ("FIRST not supported as a .SUBSPACE argument");
025b0302 5381 else
8f78d0e9 5382 as_bad ("Invalid .SUBSPACE argument");
025b0302
ME		 5383 if (!is_end_of_statement ())
5384 input_line_pointer++;
5385 }
5386 }
8f78d0e9 5387
3b9a72c5 5388 /* Compute a reasonable set of BFD flags based on the information
c5e9ccd0 5389 in the .subspace directive. */
3b9a72c5
JL		 5390 applicable = bfd_applicable_section_flags (stdoutput);
5391 flags = 0;
5392 if (loadable)
5393 flags |= (SEC_ALLOC | SEC_LOAD);
5394 if (code_only)
5395 flags |= SEC_CODE;
5396 if (common || dup_common)
5397 flags |= SEC_IS_COMMON;
5398
5399 /* This is a zero-filled subspace (eg BSS). */
5400 if (zero)
5401 flags &= ~SEC_LOAD;
5402
5403 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
5404 applicable &= flags;
5405
5406 /* If this is an existing subspace, then we want to use the
c5e9ccd0 5407 segment already associated with the subspace.
3b9a72c5 5408
c5e9ccd0
JL		 5409 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5410 lots of sections. It might be a problem in the PA ELF
5411 code, I do not know yet. For now avoid creating anything
5412 but the "standard" sections for ELF. */
3b9a72c5
JL		 5413 if (ssd)
5414 section = ssd->ssd_seg;
47f45d66 5415 else if (alias)
3b9a72c5 5416 section = subseg_new (alias, 0);
c5e9ccd0 5417 else if (!alias && USE_ALIASES)
3b9a72c5
JL		 5418 {
5419 as_warn ("Ignoring subspace decl due to ELF BFD bugs.");
5420 demand_empty_rest_of_line ();
5421 return;
5422 }
c5e9ccd0 5423 else
3b9a72c5
JL		 5424 section = subseg_new (ss_name, 0);
5425
5426 /* Now set the flags. */
5427 bfd_set_section_flags (stdoutput, section, applicable);
5428
5429 /* Record any alignment request for this section. */
5430 record_alignment (section, log2 (alignment));
5431
5432 /* Set the starting offset for this section. */
5433 bfd_set_section_vma (stdoutput, section,
5434 pa_subspace_start (space, quadrant));
c5e9ccd0 5435
8f78d0e9 5436 /* Now that all the flags are set, update an existing subspace,
3b9a72c5 5437 or create a new one. */
025b0302 5438 if (ssd)
3b9a72c5
JL		 5439
5440 current_subspace = update_subspace (space, ss_name, loadable,
5441 code_only, common, dup_common,
5442 sort, zero, access, space_index,
c5e9ccd0 5443 alignment, quadrant,
47f45d66 5444 section);
025b0302 5445 else
8f78d0e9
KR		 5446 current_subspace = create_new_subspace (space, ss_name, loadable,
5447 code_only, common,
5448 dup_common, zero, sort,
5449 access, space_index,
c5e9ccd0 5450 alignment, quadrant, section);
025b0302
ME		 5451
5452 demand_empty_rest_of_line ();
3b9a72c5 5453 current_subspace->ssd_seg = section;
80aab579 5454 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
025b0302 5455 }
47f45d66 5456 SUBSPACE_DEFINED (current_subspace) = 1;
025b0302
ME		 5457}
5458
025b0302 5459
8f78d0e9 5460/* Create default space and subspace dictionaries. */
025b0302 5461
c5e9ccd0 5462static void
025b0302
ME		 5463pa_spaces_begin ()
5464{
025b0302 5465 int i;
025b0302
ME		 5466
5467 space_dict_root = NULL;
5468 space_dict_last = NULL;
5469
025b0302
ME		 5470 i = 0;
5471 while (pa_def_spaces[i].name)
5472 {
3b9a72c5
JL		 5473 char *name;
5474
5475 /* Pick the right name to use for the new section. */
5476 if (pa_def_spaces[i].alias && USE_ALIASES)
5477 name = pa_def_spaces[i].alias;
025b0302 5478 else
c5e9ccd0 5479 name = pa_def_spaces[i].name;
025b0302 5480
3b9a72c5 5481 pa_def_spaces[i].segment = subseg_new (name, 0);
025b0302
ME		 5482 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
5483 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
8f78d0e9
KR		 5484 pa_def_spaces[i].private, pa_def_spaces[i].sort,
5485 pa_def_spaces[i].segment, 0);
025b0302
ME		 5486 i++;
5487 }
5488
5489 i = 0;
5490 while (pa_def_subspaces[i].name)
5491 {
3b9a72c5
JL		 5492 char *name;
5493 int applicable, subsegment;
5494 asection *segment = NULL;
5495 sd_chain_struct *space;
5496
5497 /* Pick the right name for the new section and pick the right
c5e9ccd0 5498 subsegment number. */
3b9a72c5 5499 if (pa_def_subspaces[i].alias && USE_ALIASES)
025b0302 5500 {
3b9a72c5
JL		 5501 name = pa_def_subspaces[i].alias;
5502 subsegment = pa_def_subspaces[i].subsegment;
025b0302
ME		 5503 }
5504 else
3b9a72c5
JL		 5505 {
5506 name = pa_def_subspaces[i].name;
5507 subsegment = 0;
5508 }
c5e9ccd0 5509
3b9a72c5
JL		 5510 /* Create the new section. */
5511 segment = subseg_new (name, subsegment);
5512
5513
5514 /* For SOM we want to replace the standard .text, .data, and .bss
9de7c1fc
JL		 5515 sections with our own. We also want to set BFD flags for
5516 all the built-in subspaces. */
c5e9ccd0 5517 if (!strcmp (pa_def_subspaces[i].name, "$CODE$") && !USE_ALIASES)
3b9a72c5
JL		 5518 {
5519 text_section = segment;
5520 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5521 bfd_set_section_flags (stdoutput, segment,
c5e9ccd0
JL		 5522 applicable & (SEC_ALLOC | SEC_LOAD
5523 | SEC_RELOC | SEC_CODE
5524 | SEC_READONLY
3b9a72c5
JL		 5525 | SEC_HAS_CONTENTS));
5526 }
c5e9ccd0 5527 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$") && !USE_ALIASES)
3b9a72c5
JL		 5528 {
5529 data_section = segment;
5530 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5531 bfd_set_section_flags (stdoutput, segment,
c5e9ccd0 5532 applicable & (SEC_ALLOC | SEC_LOAD
3b9a72c5
JL		 5533 | SEC_RELOC
5534 | SEC_HAS_CONTENTS));
c5e9ccd0
JL		 5535
5536
3b9a72c5 5537 }
c5e9ccd0 5538 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$") && !USE_ALIASES)
3b9a72c5
JL		 5539 {
5540 bss_section = segment;
5541 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5542 bfd_set_section_flags (stdoutput, segment,
3b9a72c5
JL		 5543 applicable & SEC_ALLOC);
5544 }
9de7c1fc
JL		 5545 else if (!strcmp (pa_def_subspaces[i].name, "$LIT$") && !USE_ALIASES)
5546 {
5547 applicable = bfd_applicable_section_flags (stdoutput);
5548 bfd_set_section_flags (stdoutput, segment,
5549 applicable & (SEC_ALLOC | SEC_LOAD
5550 | SEC_RELOC
5551 | SEC_READONLY
5552 | SEC_HAS_CONTENTS));
5553 }
5554 else if (!strcmp (pa_def_subspaces[i].name, "$UNWIND$") && !USE_ALIASES)
5555 {
5556 applicable = bfd_applicable_section_flags (stdoutput);
5557 bfd_set_section_flags (stdoutput, segment,
5558 applicable & (SEC_ALLOC | SEC_LOAD
5559 | SEC_RELOC
5560 | SEC_READONLY
5561 | SEC_HAS_CONTENTS));
5562 }
3b9a72c5
JL		 5563
5564 /* Find the space associated with this subspace. */
5565 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
5566 def_space_index].segment);
5567 if (space == NULL)
5568 {
5569 as_fatal ("Internal error: Unable to find containing space for %s.",
5570 pa_def_subspaces[i].name);
5571 }
5572
5573 create_new_subspace (space, name,
5574 pa_def_subspaces[i].loadable,
5575 pa_def_subspaces[i].code_only,
5576 pa_def_subspaces[i].common,
5577 pa_def_subspaces[i].dup_common,
5578 pa_def_subspaces[i].zero,
5579 pa_def_subspaces[i].sort,
5580 pa_def_subspaces[i].access,
5581 pa_def_subspaces[i].space_index,
5582 pa_def_subspaces[i].alignment,
5583 pa_def_subspaces[i].quadrant,
5584 segment);
025b0302
ME		 5585 i++;
5586 }
5587}
5588
8f78d0e9
KR		 5589
5590
5591/* Create a new space NAME, with the appropriate flags as defined
dd2f509f 5592 by the given parameters. */
8f78d0e9
KR		 5593
5594static sd_chain_struct *
5595create_new_space (name, spnum, loadable, defined, private,
5596 sort, seg, user_defined)
025b0302
ME		 5597 char *name;
5598 int spnum;
de3ffc7a
JL		 5599 int loadable;
5600 int defined;
5601 int private;
5602 int sort;
025b0302 5603 asection *seg;
8f78d0e9 5604 int user_defined;
025b0302 5605{
8f78d0e9
KR		 5606 sd_chain_struct *chain_entry;
5607
5608 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
025b0302 5609 if (!chain_entry)
8f78d0e9
KR		 5610 as_fatal ("Out of memory: could not allocate new space chain entry: %s\n",
5611 name);
025b0302
ME		 5612
5613 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5614 strcpy (SPACE_NAME (chain_entry), name);
8f78d0e9
KR		 5615 SPACE_DEFINED (chain_entry) = defined;
5616 SPACE_USER_DEFINED (chain_entry) = user_defined;
8f78d0e9 5617 SPACE_SPNUM (chain_entry) = spnum;
025b0302 5618
025b0302
ME		 5619 chain_entry->sd_seg = seg;
5620 chain_entry->sd_last_subseg = -1;
5621 chain_entry->sd_next = NULL;
5622
8f78d0e9 5623 /* Find spot for the new space based on its sort key. */
025b0302
ME		 5624 if (!space_dict_last)
5625 space_dict_last = chain_entry;
5626
8f78d0e9 5627 if (space_dict_root == NULL)
025b0302
ME		 5628 space_dict_root = chain_entry;
5629 else
5630 {
8f78d0e9
KR		 5631 sd_chain_struct *chain_pointer;
5632 sd_chain_struct *prev_chain_pointer;
025b0302 5633
8f78d0e9
KR		 5634 chain_pointer = space_dict_root;
5635 prev_chain_pointer = NULL;
025b0302 5636
8f78d0e9 5637 while (chain_pointer)
025b0302 5638 {
dd2f509f
JL		 5639 prev_chain_pointer = chain_pointer;
5640 chain_pointer = chain_pointer->sd_next;
025b0302
ME		 5641 }
5642
8f78d0e9
KR		 5643 /* At this point we've found the correct place to add the new
5644 entry. So add it and update the linked lists as appropriate. */
5645 if (prev_chain_pointer)
025b0302 5646 {
8f78d0e9
KR		 5647 chain_entry->sd_next = chain_pointer;
5648 prev_chain_pointer->sd_next = chain_entry;
025b0302
ME		 5649 }
5650 else
5651 {
5652 space_dict_root = chain_entry;
8f78d0e9 5653 chain_entry->sd_next = chain_pointer;
025b0302
ME		 5654 }
5655
5656 if (chain_entry->sd_next == NULL)
5657 space_dict_last = chain_entry;
5658 }
5659
548ea75b
JL		 5660 /* This is here to catch predefined spaces which do not get
5661 modified by the user's input. Another call is found at
5662 the bottom of pa_parse_space_stmt to handle cases where
5663 the user modifies a predefined space. */
5664#ifdef obj_set_section_attributes
5665 obj_set_section_attributes (seg, defined, private, sort, spnum);
5666#endif
5667
025b0302
ME		 5668 return chain_entry;
5669}
5670
8f78d0e9
KR		 5671/* Create a new subspace NAME, with the appropriate flags as defined
5672 by the given parameters.
5673
5674 Add the new subspace to the subspace dictionary chain in numerical
5675 order as defined by the SORT entries. */
5676
5677static ssd_chain_struct *
5678create_new_subspace (space, name, loadable, code_only, common,
5679 dup_common, is_zero, sort, access, space_index,
5680 alignment, quadrant, seg)
5681 sd_chain_struct *space;
025b0302 5682 char *name;
de3ffc7a
JL		 5683 int loadable, code_only, common, dup_common, is_zero;
5684 int sort;
025b0302
ME		 5685 int access;
5686 int space_index;
5687 int alignment;
5688 int quadrant;
5689 asection *seg;
5690{
8f78d0e9 5691 ssd_chain_struct *chain_entry;
025b0302 5692
8f78d0e9 5693 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
025b0302
ME		 5694 if (!chain_entry)
5695 as_fatal ("Out of memory: could not allocate new subspace chain entry: %s\n", name);
5696
025b0302
ME		 5697 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5698 strcpy (SUBSPACE_NAME (chain_entry), name);
5699
240cbc57
JL		 5700 /* Initialize subspace_defined. When we hit a .subspace directive
5701 we'll set it to 1 which "locks-in" the subspace attributes. */
5702 SUBSPACE_DEFINED (chain_entry) = 0;
5703
3b9a72c5 5704 chain_entry->ssd_subseg = USE_ALIASES ? pa_next_subseg (space) : 0;
025b0302 5705 chain_entry->ssd_seg = seg;
025b0302
ME		 5706 chain_entry->ssd_next = NULL;
5707
8f78d0e9
KR		 5708 /* Find spot for the new subspace based on its sort key. */
5709 if (space->sd_subspaces == NULL)
025b0302
ME		 5710 space->sd_subspaces = chain_entry;
5711 else
5712 {
8f78d0e9
KR		 5713 ssd_chain_struct *chain_pointer;
5714 ssd_chain_struct *prev_chain_pointer;
025b0302 5715
8f78d0e9
KR		 5716 chain_pointer = space->sd_subspaces;
5717 prev_chain_pointer = NULL;
025b0302 5718
8f78d0e9 5719 while (chain_pointer)
025b0302 5720 {
dd2f509f
JL		 5721 prev_chain_pointer = chain_pointer;
5722 chain_pointer = chain_pointer->ssd_next;
025b0302
ME		 5723 }
5724
8f78d0e9
KR		 5725 /* Now we have somewhere to put the new entry. Insert it and update
5726 the links. */
5727 if (prev_chain_pointer)
025b0302 5728 {
8f78d0e9
KR		 5729 chain_entry->ssd_next = chain_pointer;
5730 prev_chain_pointer->ssd_next = chain_entry;
025b0302
ME		 5731 }
5732 else
5733 {
5734 space->sd_subspaces = chain_entry;
8f78d0e9 5735 chain_entry->ssd_next = chain_pointer;
025b0302
ME		 5736 }
5737 }
5738
548ea75b 5739#ifdef obj_set_subsection_attributes
c5e9ccd0 5740 obj_set_subsection_attributes (seg, space->sd_seg, access,
548ea75b
JL		 5741 sort, quadrant);
5742#endif
5743
025b0302 5744 return chain_entry;
025b0302
ME		 5745}
5746
8f78d0e9
KR		 5747/* Update the information for the given subspace based upon the
5748 various arguments. Return the modified subspace chain entry. */
5749
5750static ssd_chain_struct *
3b9a72c5 5751update_subspace (space, name, loadable, code_only, common, dup_common, sort,
18c4f112 5752 zero, access, space_index, alignment, quadrant, section)
3b9a72c5 5753 sd_chain_struct *space;
025b0302 5754 char *name;
de3ffc7a
JL		 5755 int loadable;
5756 int code_only;
5757 int common;
5758 int dup_common;
5759 int zero;
5760 int sort;
025b0302
ME		 5761 int access;
5762 int space_index;
5763 int alignment;
5764 int quadrant;
18c4f112 5765 asection *section;
025b0302 5766{
8f78d0e9 5767 ssd_chain_struct *chain_entry;
025b0302 5768
dd2f509f 5769 chain_entry = is_defined_subspace (name);
025b0302 5770
548ea75b 5771#ifdef obj_set_subsection_attributes
c5e9ccd0 5772 obj_set_subsection_attributes (section, space->sd_seg, access,
548ea75b
JL		 5773 sort, quadrant);
5774#endif
5775
025b0302 5776 return chain_entry;
025b0302
ME		 5777}
5778
8f78d0e9
KR		 5779/* Return the space chain entry for the space with the name NAME or
5780 NULL if no such space exists. */
5781
5782static sd_chain_struct *
025b0302
ME		 5783is_defined_space (name)
5784 char *name;
5785{
8f78d0e9 5786 sd_chain_struct *chain_pointer;
025b0302 5787
8f78d0e9
KR		 5788 for (chain_pointer = space_dict_root;
5789 chain_pointer;
5790 chain_pointer = chain_pointer->sd_next)
025b0302 5791 {
8f78d0e9
KR		 5792 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
5793 return chain_pointer;
025b0302
ME		 5794 }
5795
8f78d0e9 5796 /* No mapping from segment to space was found. Return NULL. */
025b0302
ME		 5797 return NULL;
5798}
5799
8f78d0e9
KR		 5800/* Find and return the space associated with the given seg. If no mapping
5801 from the given seg to a space is found, then return NULL.
5802
5803 Unlike subspaces, the number of spaces is not expected to grow much,
5804 so a linear exhaustive search is OK here. */
5805
5806static sd_chain_struct *
025b0302
ME		 5807pa_segment_to_space (seg)
5808 asection *seg;
5809{
8f78d0e9 5810 sd_chain_struct *space_chain;
025b0302 5811
8f78d0e9
KR		 5812 /* Walk through each space looking for the correct mapping. */
5813 for (space_chain = space_dict_root;
5814 space_chain;
5815 space_chain = space_chain->sd_next)
025b0302 5816 {
8f78d0e9
KR		 5817 if (space_chain->sd_seg == seg)
5818 return space_chain;
025b0302
ME		 5819 }
5820
8f78d0e9 5821 /* Mapping was not found. Return NULL. */
025b0302
ME		 5822 return NULL;
5823}
5824
8f78d0e9
KR		 5825/* Return the space chain entry for the subspace with the name NAME or
5826 NULL if no such subspace exists.
5827
5828 Uses a linear search through all the spaces and subspaces, this may
5829 not be appropriate if we ever being placing each function in its
5830 own subspace. */
5831
5832static ssd_chain_struct *
47f45d66 5833is_defined_subspace (name)
025b0302 5834 char *name;
025b0302 5835{
c5e9ccd0 5836 sd_chain_struct *space_chain;
8f78d0e9 5837 ssd_chain_struct *subspace_chain;
025b0302 5838
8f78d0e9
KR		 5839 /* Walk through each space. */
5840 for (space_chain = space_dict_root;
5841 space_chain;
5842 space_chain = space_chain->sd_next)
025b0302 5843 {
8f78d0e9
KR		 5844 /* Walk through each subspace looking for a name which matches. */
5845 for (subspace_chain = space_chain->sd_subspaces;
5846 subspace_chain;
5847 subspace_chain = subspace_chain->ssd_next)
5848 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
5849 return subspace_chain;
025b0302 5850 }
8f78d0e9
KR		 5851
5852 /* Subspace wasn't found. Return NULL. */
025b0302
ME		 5853 return NULL;
5854}
5855
8f78d0e9
KR		 5856/* Find and return the subspace associated with the given seg. If no
5857 mapping from the given seg to a subspace is found, then return NULL.
5858
5859 If we ever put each procedure/function within its own subspace
5860 (to make life easier on the compiler and linker), then this will have
5861 to become more efficient. */
5862
5863static ssd_chain_struct *
025b0302
ME		 5864pa_subsegment_to_subspace (seg, subseg)
5865 asection *seg;
5866 subsegT subseg;
5867{
8f78d0e9
KR		 5868 sd_chain_struct *space_chain;
5869 ssd_chain_struct *subspace_chain;
025b0302 5870
8f78d0e9
KR		 5871 /* Walk through each space. */
5872 for (space_chain = space_dict_root;
5873 space_chain;
5874 space_chain = space_chain->sd_next)
025b0302 5875 {
8f78d0e9 5876 if (space_chain->sd_seg == seg)
025b0302 5877 {
8f78d0e9
KR		 5878 /* Walk through each subspace within each space looking for
5879 the correct mapping. */
5880 for (subspace_chain = space_chain->sd_subspaces;
5881 subspace_chain;
5882 subspace_chain = subspace_chain->ssd_next)
5883 if (subspace_chain->ssd_subseg == (int) subseg)
5884 return subspace_chain;
025b0302
ME		 5885 }
5886 }
5887
8f78d0e9 5888 /* No mapping from subsegment to subspace found. Return NULL. */
025b0302
ME		 5889 return NULL;
5890}
5891
8f78d0e9
KR		 5892/* Given a number, try and find a space with the name number.
5893
5894 Return a pointer to a space dictionary chain entry for the space
5895 that was found or NULL on failure. */
5896
5897static sd_chain_struct *
025b0302
ME		 5898pa_find_space_by_number (number)
5899 int number;
5900{
8f78d0e9 5901 sd_chain_struct *space_chain;
025b0302 5902
8f78d0e9
KR		 5903 for (space_chain = space_dict_root;
5904 space_chain;
5905 space_chain = space_chain->sd_next)
025b0302 5906 {
8f78d0e9
KR		 5907 if (SPACE_SPNUM (space_chain) == number)
5908 return space_chain;
025b0302
ME		 5909 }
5910
8f78d0e9 5911 /* No appropriate space found. Return NULL. */
025b0302
ME		 5912 return NULL;
5913}
5914
8f78d0e9
KR		 5915/* Return the starting address for the given subspace. If the starting
5916 address is unknown then return zero. */
5917
5918static unsigned int
025b0302 5919pa_subspace_start (space, quadrant)
8f78d0e9 5920 sd_chain_struct *space;
025b0302
ME		 5921 int quadrant;
5922{
8f78d0e9
KR		 5923 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
5924 is not correct for the PA OSF1 port. */
4047ff1d 5925 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
8f78d0e9 5926 return 0x40000000;
025b0302 5927 else if (space->sd_seg == data_section && quadrant == 1)
8f78d0e9 5928 return 0x40000000;
025b0302
ME		 5929 else
5930 return 0;
5931}
5932
8f78d0e9
KR		 5933/* FIXME. Needs documentation. */
5934static int
025b0302 5935pa_next_subseg (space)
8f78d0e9 5936 sd_chain_struct *space;
025b0302
ME		 5937{
5938
5939 space->sd_last_subseg++;
5940 return space->sd_last_subseg;
5941}
5942
8f78d0e9
KR		 5943/* Helper function for pa_stringer. Used to find the end of
5944 a string. */
5945
025b0302
ME		 5946static unsigned int
5947pa_stringer_aux (s)
5948 char *s;
5949{
5950 unsigned int c = *s & CHAR_MASK;
5951 switch (c)
5952 {
5953 case '\"':
5954 c = NOT_A_CHAR;
5955 break;
5956 default:
5957 break;
5958 }
5959 return c;
5960}
5961
8f78d0e9
KR		 5962/* Handle a .STRING type pseudo-op. */
5963
5964static void
5965pa_stringer (append_zero)
5966 int append_zero;
025b0302 5967{
8f78d0e9 5968 char *s, num_buf[4];
025b0302 5969 unsigned int c;
025b0302
ME		 5970 int i;
5971
8f78d0e9
KR		 5972 /* Preprocess the string to handle PA-specific escape sequences.
5973 For example, \xDD where DD is a hexidecimal number should be
5974 changed to \OOO where OOO is an octal number. */
025b0302 5975
8f78d0e9
KR		 5976 /* Skip the opening quote. */
5977 s = input_line_pointer + 1;
025b0302
ME		 5978
5979 while (is_a_char (c = pa_stringer_aux (s++)))
5980 {
5981 if (c == '\\')
5982 {
5983 c = *s;
5984 switch (c)
5985 {
8f78d0e9 5986 /* Handle \x<num>. */
025b0302
ME		 5987 case 'x':
5988 {
5989 unsigned int number;
5990 int num_digit;
5991 char dg;
5992 char *s_start = s;
5993
8f78d0e9
KR		 5994 /* Get pas the 'x'. */
5995 s++;
025b0302
ME		 5996 for (num_digit = 0, number = 0, dg = *s;
5997 num_digit < 2
5998 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
5999 || (dg >= 'A' && dg <= 'F'));
6000 num_digit++)
6001 {
6002 if (isdigit (dg))
6003 number = number * 16 + dg - '0';
6004 else if (dg >= 'a' && dg <= 'f')
6005 number = number * 16 + dg - 'a' + 10;
6006 else
6007 number = number * 16 + dg - 'A' + 10;
6008
6009 s++;
6010 dg = *s;
6011 }
6012 if (num_digit > 0)
6013 {
6014 switch (num_digit)
6015 {
6016 case 1:
6017 sprintf (num_buf, "%02o", number);
6018 break;
6019 case 2:
6020 sprintf (num_buf, "%03o", number);
6021 break;
6022 }
6023 for (i = 0; i <= num_digit; i++)
6024 s_start[i] = num_buf[i];
6025 }
5cf4cd1b 6026 break;
025b0302 6027 }
8f78d0e9 6028 /* This might be a "\"", skip over the escaped char. */
5cf4cd1b
KR		 6029 default:
6030 s++;
025b0302
ME		 6031 break;
6032 }
6033 }
6034 }
6035 stringer (append_zero);
6036 pa_undefine_label ();
6037}
6038
8f78d0e9
KR		 6039/* Handle a .VERSION pseudo-op. */
6040
6041static void
6042pa_version (unused)
6043 int unused;
025b0302 6044{
8f78d0e9 6045 obj_version (0);
025b0302
ME		 6046 pa_undefine_label ();
6047}
6048
eb91665b
JL		 6049/* Handle a .COPYRIGHT pseudo-op. */
6050
6051static void
6052pa_copyright (unused)
6053 int unused;
6054{
6055 obj_copyright (0);
6056 pa_undefine_label ();
6057}
6058
8f78d0e9
KR		 6059/* Just like a normal cons, but when finished we have to undefine
6060 the latest space label. */
6061
6062static void
025b0302 6063pa_cons (nbytes)
8f78d0e9 6064 int nbytes;
025b0302
ME		 6065{
6066 cons (nbytes);
6067 pa_undefine_label ();
6068}
6069
8f78d0e9
KR		 6070/* Switch to the data space. As usual delete our label. */
6071
6072static void
6073pa_data (unused)
6074 int unused;
025b0302 6075{
80aab579 6076 s_data (0);
025b0302
ME		 6077 pa_undefine_label ();
6078}
6079
8f78d0e9 6080/* Like float_cons, but we need to undefine our label. */
c5e9ccd0 6081
8f78d0e9 6082static void
025b0302 6083pa_float_cons (float_type)
8f78d0e9 6084 int float_type;
025b0302
ME		 6085{
6086 float_cons (float_type);
6087 pa_undefine_label ();
6088}
6089
8f78d0e9
KR		 6090/* Like s_fill, but delete our label when finished. */
6091
6092static void
6093pa_fill (unused)
6094 int unused;
025b0302 6095{
80aab579 6096 s_fill (0);
025b0302
ME		 6097 pa_undefine_label ();
6098}
6099
8f78d0e9
KR		 6100/* Like lcomm, but delete our label when finished. */
6101
6102static void
025b0302 6103pa_lcomm (needs_align)
025b0302
ME		 6104 int needs_align;
6105{
6106 s_lcomm (needs_align);
6107 pa_undefine_label ();
6108}
6109
8f78d0e9
KR		 6110/* Like lsym, but delete our label when finished. */
6111
6112static void
6113pa_lsym (unused)
6114 int unused;
025b0302 6115{
80aab579 6116 s_lsym (0);
025b0302
ME		 6117 pa_undefine_label ();
6118}
6119
8f78d0e9
KR		 6120/* Switch to the text space. Like s_text, but delete our
6121 label when finished. */
6122static void
6123pa_text (unused)
6124 int unused;
025b0302 6125{
80aab579 6126 s_text (0);
025b0302
ME		 6127 pa_undefine_label ();
6128}
5cf4cd1b 6129
aa8b30ed
JL		 6130/* On the PA relocations which involve function symbols must not be
6131 adjusted. This so that the linker can know when/how to create argument
6132 relocation stubs for indirect calls and calls to static functions.
6133
6134 FIXME. Also reject R_HPPA relocations which are 32 bits
6135 wide. Helps with code lables in arrays for SOM. (SOM BFD code
6136 needs to generate relocations to push the addend and symbol value
6137 onto the stack, add them, then pop the value off the stack and
6138 use it in a relocation -- yuk. */
6139
6140int
c5e9ccd0 6141hppa_fix_adjustable (fixp)
aa8b30ed
JL		 6142 fixS *fixp;
6143{
6144 struct hppa_fix_struct *hppa_fix;
6145
fb338f1d 6146 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
aa8b30ed
JL		 6147
6148 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
6149 return 0;
6150
c5e9ccd0 6151 if (fixp->fx_addsy == 0
aa8b30ed
JL		 6152 || (fixp->fx_addsy->bsym->flags & BSF_FUNCTION) == 0)
6153 return 1;
6154
6155 return 0;
6156}
c5e9ccd0 6157
335d35c8
JL		 6158/* Return nonzero if the fixup in FIXP will require a relocation,
6159 even it if appears that the fixup could be completely handled
6160 within GAS. */
6161
6162int
6163hppa_force_relocation (fixp)
6164 fixS *fixp;
6165{
fb338f1d 6166 struct hppa_fix_struct *hppa_fixp;
335d35c8 6167
fb338f1d 6168 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
335d35c8
JL		 6169#ifdef OBJ_SOM
6170 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT)
6171 return 1;
6172#endif
6173
6174#define stub_needed(CALLER, CALLEE) \
6175 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6176
6177 /* It is necessary to force PC-relative calls/jumps to have a relocation
6178 entry if they're going to need either a argument relocation or long
6179 call stub. FIXME. Can't we need the same for absolute calls? */
753dcbbd 6180 if (fixp->fx_pcrel && fixp->fx_addsy
335d35c8
JL		 6181 && (stub_needed (((obj_symbol_type *)
6182 fixp->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
6183 hppa_fixp->fx_arg_reloc)))
6184 return 1;
6185
6186#undef stub_needed
6187
6188 /* No need (yet) to force another relocations to be emitted. */
6189 return 0;
6190}
6191
8f78d0e9
KR		 6192/* Now for some ELF specific code. FIXME. */
6193#ifdef OBJ_ELF
44c0de53
JL		 6194/* Mark the end of a function so that it's possible to compute
6195 the size of the function in hppa_elf_final_processing. */
6196
6197static void
6198hppa_elf_mark_end_of_function ()
6199{
6200 /* ELF does not have EXIT relocations. All we do is create a
6201 temporary symbol marking the end of the function. */
6202 char *name = (char *)
6203 xmalloc (strlen ("L$\001end_") +
6204 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
6205
6206 if (name)
6207 {
6208 symbolS *symbolP;
6209
6210 strcpy (name, "L$\001end_");
6211 strcat (name, S_GET_NAME (last_call_info->start_symbol));
6212
6213 /* If we have a .exit followed by a .procend, then the
6214 symbol will have already been defined. */
6215 symbolP = symbol_find (name);
6216 if (symbolP)
6217 {
6218 /* The symbol has already been defined! This can
6219 happen if we have a .exit followed by a .procend.
6220
6221 This is *not* an error. All we want to do is free
6222 the memory we just allocated for the name and continue. */
6223 xfree (name);
6224 }
6225 else
6226 {
6227 /* symbol value should be the offset of the
6228 last instruction of the function */
6229 symbolP = symbol_new (name, now_seg,
6230 (valueT) (obstack_next_free (&frags)
6231 - frag_now->fr_literal - 4),
6232 frag_now);
6233
6234 assert (symbolP);
6235 symbolP->bsym->flags = BSF_LOCAL;
6236 symbol_table_insert (symbolP);
6237 }
6238
6239 if (symbolP)
6240 last_call_info->end_symbol = symbolP;
6241 else
6242 as_bad ("Symbol '%s' could not be created.", name);
6243
6244 }
6245 else
6246 as_bad ("No memory for symbol name.");
6247
44c0de53
JL		 6248}
6249
8f78d0e9
KR		 6250/* For ELF, this function serves one purpose: to setup the st_size
6251 field of STT_FUNC symbols. To do this, we need to scan the
dd2f509f
JL		 6252 call_info structure list, determining st_size in by taking the
6253 difference in the address of the beginning/end marker symbols. */
8f78d0e9
KR		 6254
6255void
6256elf_hppa_final_processing ()
6257{
6258 struct call_info *call_info_pointer;
6259
6260 for (call_info_pointer = call_info_root;
6261 call_info_pointer;
6262 call_info_pointer = call_info_pointer->ci_next)
6263 {
6264 elf_symbol_type *esym
c5e9ccd0 6265 = (elf_symbol_type *) call_info_pointer->start_symbol->bsym;
8f78d0e9
KR		 6266 esym->internal_elf_sym.st_size =
6267 S_GET_VALUE (call_info_pointer->end_symbol)
c5e9ccd0 6268 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
5cf4cd1b
KR		 6269 }
6270}
8f78d0e9 6271#endif
GDB Binutils - Deliverables
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