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* config/obj-coffbfd.c (adjust_stab_section): Initialize
[thirdparty/binutils-gdb.git] / gas / config / tc-hppa.c
CommitLineData
025b0302
ME		 1/* tc-hppa.c -- Assemble for the PA
2 Copyright (C) 1989 Free Software Foundation, Inc.
3
8f78d0e9 4 This file is part of GAS, the GNU Assembler.
025b0302 5
8f78d0e9
KR		 6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 1, or (at your option)
9 any later version.
025b0302 10
8f78d0e9
KR		 11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
025b0302 15
8f78d0e9
KR		 16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
025b0302
ME		 19
20
8f78d0e9
KR		 21/* HP PA-RISC support was contributed by the Center for Software Science
22 at the University of Utah. */
025b0302
ME		 23
24#include <stdio.h>
25#include <ctype.h>
26
27#include "as.h"
28#include "subsegs.h"
29
5cf4cd1b 30#include "../bfd/libhppa.h"
8f78d0e9 31#include "../bfd/libbfd.h"
5cf4cd1b 32
8f78d0e9
KR		 33/* Be careful, this file includes data *declarations*. */
34#include "opcode/hppa.h"
35
36/* A "convient" place to put object file dependencies which do
37 not need to be seen outside of tc-hppa.c. */
5cf4cd1b 38#ifdef OBJ_ELF
8f78d0e9
KR		 39/* Names of various debugging spaces/subspaces. */
40#define GDB_DEBUG_SPACE_NAME ".stab"
41#define GDB_STRINGS_SUBSPACE_NAME ".stabstr"
42#define GDB_SYMBOLS_SUBSPACE_NAME ".stab"
43#define UNWIND_SECTION_NAME ".hppa_unwind"
44/* Nonzero if CODE is a fixup code needing further processing. */
45
8f78d0e9
KR		 46/* Object file formats specify relocation types. */
47typedef elf32_hppa_reloc_type reloc_type;
48
49/* Object file formats specify BFD symbol types. */
50typedef elf_symbol_type obj_symbol_type;
51
aa8b30ed
JL		 52/* How to generate a relocation. */
53#define hppa_gen_reloc_type hppa_elf_gen_reloc_type
54
eb91665b
JL		 55/* ELF objects can have versions, but apparently do not have anywhere
56 to store a copyright string. */
8f78d0e9 57#define obj_version obj_elf_version
eb91665b 58#define obj_copyright obj_elf_version
8f78d0e9 59
3b9a72c5
JL		 60/* Use space aliases. */
61#define USE_ALIASES 1
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));
502static sd_chain_struct *create_new_space PARAMS ((char *, int, char,
503 char, char, char,
504 asection *, int));
c5e9ccd0
JL		 505static ssd_chain_struct *create_new_subspace PARAMS ((sd_chain_struct *,
506 char *, char, char,
507 char, char, char,
508 char, int, int, int,
509 int, asection *));
3b9a72c5
JL		 510static ssd_chain_struct *update_subspace PARAMS ((sd_chain_struct *,
511 char *, char, char, char,
8f78d0e9 512 char, char, char, 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
KR		 522static void pa_ip PARAMS ((char *));
523static void fix_new_hppa PARAMS ((fragS *, int, short int, symbolS *,
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
aa8b30ed 1036 {"$UNWIND$", 1, 1, 0, 0, 0, 0, 64, 0x2c, 0, 4, 0, 0, ".hppa_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
1095#define is_complex(exp) \
1096 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1097
1098/* Actual functions to implement the PA specific code for the assembler. */
1099
1100/* Returns a pointer to the label_symbol_struct for the current space.
1101 or NULL if no label_symbol_struct exists for the current space. */
1102
1103static label_symbol_struct *
1104pa_get_label ()
1105{
1106 label_symbol_struct *label_chain;
3b9a72c5 1107 sd_chain_struct *space_chain = current_space;
025b0302 1108
8f78d0e9
KR		 1109 for (label_chain = label_symbols_rootp;
1110 label_chain;
1111 label_chain = label_chain->lss_next)
1112 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1113 return label_chain;
025b0302 1114
8f78d0e9
KR		 1115 return NULL;
1116}
025b0302 1117
8f78d0e9
KR		 1118/* Defines a label for the current space. If one is already defined,
1119 this function will replace it with the new label. */
025b0302 1120
8f78d0e9
KR		 1121void
1122pa_define_label (symbol)
1123 symbolS *symbol;
1124{
1125 label_symbol_struct *label_chain = pa_get_label ();
3b9a72c5 1126 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1127
1128 if (label_chain)
1129 label_chain->lss_label = symbol;
1130 else
1131 {
1132 /* Create a new label entry and add it to the head of the chain. */
1133 label_chain
1134 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1135 label_chain->lss_label = symbol;
1136 label_chain->lss_space = space_chain;
1137 label_chain->lss_next = NULL;
1138
1139 if (label_symbols_rootp)
1140 label_chain->lss_next = label_symbols_rootp;
1141
1142 label_symbols_rootp = label_chain;
1143 }
1144}
1145
1146/* Removes a label definition for the current space.
1147 If there is no label_symbol_struct entry, then no action is taken. */
1148
1149static void
1150pa_undefine_label ()
1151{
1152 label_symbol_struct *label_chain;
1153 label_symbol_struct *prev_label_chain = NULL;
3b9a72c5 1154 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1155
1156 for (label_chain = label_symbols_rootp;
1157 label_chain;
1158 label_chain = label_chain->lss_next)
1159 {
1160 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1161 {
1162 /* Remove the label from the chain and free its memory. */
1163 if (prev_label_chain)
1164 prev_label_chain->lss_next = label_chain->lss_next;
1165 else
1166 label_symbols_rootp = label_chain->lss_next;
1167
1168 free (label_chain);
1169 break;
1170 }
1171 prev_label_chain = label_chain;
1172 }
1173}
1174
1175
1176/* An HPPA-specific version of fix_new. This is required because the HPPA
1177 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1178 results in the creation of an instance of an hppa_fix_struct. An
1179 hppa_fix_struct stores the extra information along with a pointer to the
aa8b30ed
JL		 1180 original fixS. This is attached to the original fixup via the
1181 tc_fix_data field. */
8f78d0e9
KR		 1182
1183static void
1184fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
1185 r_type, r_field, r_format, arg_reloc, unwind_desc)
1186 fragS *frag;
1187 int where;
1188 short int size;
1189 symbolS *add_symbol;
1190 long offset;
1191 expressionS *exp;
1192 int pcrel;
1193 bfd_reloc_code_real_type r_type;
f2eed884 1194 enum hppa_reloc_field_selector_type r_field;
8f78d0e9
KR		 1195 int r_format;
1196 long arg_reloc;
1197 char *unwind_desc;
1198{
1199 fixS *new_fix;
1200
1201 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
c5e9ccd0 1202 obstack_alloc (&notes, sizeof (struct hppa_fix_struct));
8f78d0e9
KR		 1203
1204 if (exp != NULL)
1205 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1206 else
1207 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
fb338f1d 1208 new_fix->tc_fix_data = (void *) hppa_fix;
8f78d0e9
KR		 1209 hppa_fix->fx_r_type = r_type;
1210 hppa_fix->fx_r_field = r_field;
1211 hppa_fix->fx_r_format = r_format;
1212 hppa_fix->fx_arg_reloc = arg_reloc;
fca59f9d 1213 hppa_fix->segment = now_seg;
8f78d0e9 1214 if (unwind_desc)
ff852e11
JL		 1215 {
1216 bcopy (unwind_desc, hppa_fix->fx_unwind, 8);
025b0302 1217
ff852e11 1218 /* If necessary call BFD backend function to attach the
c5e9ccd0
JL		 1219 unwind bits to the target dependent parts of a BFD symbol.
1220 Yuk. */
ff852e11
JL		 1221#ifdef obj_attach_unwind_info
1222 obj_attach_unwind_info (add_symbol->bsym, unwind_desc);
1223#endif
1224 }
25989392
JL		 1225
1226 /* foo-$global$ is used to access non-automatic storage. $global$
1227 is really just a marker and has served its purpose, so eliminate
1228 it now so as not to confuse write.c. */
81413fa2
JL		 1229 if (new_fix->fx_subsy
1230 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
25989392 1231 new_fix->fx_subsy = NULL;
025b0302
ME		 1232}
1233
1234/* Parse a .byte, .word, .long expression for the HPPA. Called by
1235 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1236
025b0302
ME		 1237void
1238parse_cons_expression_hppa (exp)
1239 expressionS *exp;
1240{
1241 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
5cf4cd1b 1242 expression (exp);
025b0302
ME		 1243}
1244
1245/* This fix_new is called by cons via TC_CONS_FIX_NEW.
1246 hppa_field_selector is set by the parse_cons_expression_hppa. */
1247
1248void
1249cons_fix_new_hppa (frag, where, size, exp)
8f78d0e9
KR		 1250 fragS *frag;
1251 int where;
1252 int size;
1253 expressionS *exp;
025b0302 1254{
4047ff1d 1255 unsigned int rel_type;
025b0302
ME		 1256
1257 if (is_DP_relative (*exp))
4047ff1d 1258 rel_type = R_HPPA_GOTOFF;
025b0302 1259 else if (is_complex (*exp))
4047ff1d 1260 rel_type = R_HPPA_COMPLEX;
025b0302 1261 else
4047ff1d 1262 rel_type = R_HPPA;
025b0302
ME		 1263
1264 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
8f78d0e9 1265 as_warn ("Invalid field selector. Assuming F%%.");
025b0302 1266
5cf4cd1b 1267 fix_new_hppa (frag, where, size,
4047ff1d 1268 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
025b0302 1269 hppa_field_selector, 32, 0, (char *) 0);
1cc248d2
JL		 1270
1271 /* Reset field selector to its default state. */
1272 hppa_field_selector = 0;
025b0302
ME		 1273}
1274
1275/* This function is called once, at assembler startup time. It should
1276 set up all the tables, etc. that the MD part of the assembler will need. */
8f78d0e9 1277
025b0302
ME		 1278void
1279md_begin ()
1280{
18c4f112 1281 const char *retval = NULL;
025b0302 1282 int lose = 0;
8f78d0e9 1283 unsigned int i = 0;
025b0302
ME		 1284
1285 last_call_info = NULL;
1286 call_info_root = NULL;
1287
13925cef
JL		 1288 /* Folding of text and data segments fails miserably on the PA.
1289 Warn user and disable "-R" option. */
d56f45f5
JL		 1290 if (flagseen['R'])
1291 {
1292 as_warn ("-R option not supported on this target.");
1293 flag_readonly_data_in_text = 0;
1294 flagseen['R'] = 0;
1295 }
13925cef 1296
025b0302
ME		 1297 pa_spaces_begin ();
1298
1299 op_hash = hash_new ();
025b0302
ME		 1300
1301 while (i < NUMOPCODES)
1302 {
1303 const char *name = pa_opcodes[i].name;
c5e9ccd0 1304 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
8f78d0e9 1305 if (retval != NULL && *retval != '\0')
025b0302 1306 {
8f78d0e9 1307 as_fatal ("Internal error: can't hash `%s': %s\n", name, retval);
025b0302
ME		 1308 lose = 1;
1309 }
1310 do
1311 {
c5e9ccd0 1312 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
8f78d0e9 1313 != pa_opcodes[i].match)
025b0302
ME		 1314 {
1315 fprintf (stderr, "internal error: losing opcode: `%s' \"%s\"\n",
1316 pa_opcodes[i].name, pa_opcodes[i].args);
1317 lose = 1;
1318 }
1319 ++i;
1320 }
8f78d0e9 1321 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
025b0302
ME		 1322 }
1323
1324 if (lose)
1325 as_fatal ("Broken assembler. No assembly attempted.");
3b9a72c5
JL		 1326
1327 /* SOM will change text_section. To make sure we never put
1328 anything into the old one switch to the new one now. */
1329 subseg_set (text_section, 0);
8f78d0e9 1330
6868afe6 1331 dummy_symbol = symbol_find_or_make ("L$dummy");
fca59f9d 1332 S_SET_SEGMENT (dummy_symbol, text_section);
025b0302
ME		 1333}
1334
8f78d0e9 1335/* Assemble a single instruction storing it into a frag. */
025b0302
ME		 1336void
1337md_assemble (str)
1338 char *str;
1339{
8f78d0e9 1340 char *to;
025b0302 1341
8f78d0e9 1342 /* The had better be something to assemble. */
025b0302 1343 assert (str);
8f78d0e9 1344
4047ff1d
JL		 1345 /* If we are within a procedure definition, make sure we've
1346 defined a label for the procedure; handle case where the
86066d06
JL		 1347 label was defined after the .PROC directive.
1348
1349 Note there's not need to diddle with the segment or fragment
1350 for the label symbol in this case. We have already switched
1351 into the new $CODE$ subspace at this point. */
4047ff1d
JL		 1352 if (within_procedure && last_call_info->start_symbol == NULL)
1353 {
1354 label_symbol_struct *label_symbol = pa_get_label ();
1355
1356 if (label_symbol)
1357 {
1358 if (label_symbol->lss_label)
1359 {
1360 last_call_info->start_symbol = label_symbol->lss_label;
1361 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
86066d06
JL		 1362#ifdef OBJ_SOM
1363 /* Also handle allocation of a fixup to hold the unwind
1364 information when the label appears after the proc/procend. */
1365 if (within_entry_exit)
1366 {
1367 char *where = frag_more (0);
1368
1369 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
1370 last_call_info->start_symbol, (offsetT) 0, NULL,
1371 0, R_HPPA_ENTRY, e_fsel, 0, 0,
1372 (char *) &last_call_info->ci_unwind.descriptor);
1373 }
1374#endif
4047ff1d
JL		 1375 }
1376 else
1377 as_bad ("Missing function name for .PROC (corrupted label chain)");
1378 }
1379 else
1380 as_bad ("Missing function name for .PROC");
1381 }
1382
8f78d0e9 1383 /* Assemble the instruction. Results are saved into "the_insn". */
025b0302 1384 pa_ip (str);
025b0302 1385
8f78d0e9
KR		 1386 /* Get somewhere to put the assembled instrution. */
1387 to = frag_more (4);
025b0302 1388
8f78d0e9
KR		 1389 /* Output the opcode. */
1390 md_number_to_chars (to, the_insn.opcode, 4);
025b0302 1391
8f78d0e9 1392 /* If necessary output more stuff. */
aa8b30ed 1393 if (the_insn.reloc != R_HPPA_NONE)
8f78d0e9
KR		 1394 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1395 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1396 the_insn.reloc, the_insn.field_selector,
1397 the_insn.format, the_insn.arg_reloc, NULL);
8f78d0e9 1398}
025b0302 1399
8f78d0e9 1400/* Do the real work for assembling a single instruction. Store results
dd2f509f 1401 into the global "the_insn" variable. */
025b0302
ME		 1402
1403static void
1404pa_ip (str)
1405 char *str;
1406{
1407 char *error_message = "";
8f78d0e9 1408 char *s, c, *argstart, *name, *save_s;
025b0302 1409 const char *args;
025b0302
ME		 1410 int match = FALSE;
1411 int comma = 0;
48153d49
JL		 1412 int cmpltr, nullif, flag, cond, num;
1413 unsigned long opcode;
8f78d0e9 1414 struct pa_opcode *insn;
025b0302 1415
8f78d0e9 1416 /* Skip to something interesting. */
025b0302
ME		 1417 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1418 ;
8f78d0e9 1419
025b0302
ME		 1420 switch (*s)
1421 {
1422
1423 case '\0':
1424 break;
1425
1426 case ',':
1427 comma = 1;
1428
8f78d0e9 1429 /*FALLTHROUGH */
025b0302
ME		 1430
1431 case ' ':
1432 *s++ = '\0';
1433 break;
1434
1435 default:
1436 as_bad ("Unknown opcode: `%s'", str);
1437 exit (1);
1438 }
1439
1440 save_s = str;
1441
8f78d0e9 1442 /* Convert everything into lower case. */
025b0302
ME		 1443 while (*save_s)
1444 {
1445 if (isupper (*save_s))
1446 *save_s = tolower (*save_s);
1447 save_s++;
1448 }
1449
8f78d0e9 1450 /* Look up the opcode in the has table. */
025b0302
ME		 1451 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1452 {
1453 as_bad ("Unknown opcode: `%s'", str);
1454 return;
1455 }
8f78d0e9 1456
025b0302
ME		 1457 if (comma)
1458 {
1459 *--s = ',';
1460 }
8f78d0e9
KR		 1461
1462 /* Mark the location where arguments for the instruction start, then
1463 start processing them. */
1464 argstart = s;
025b0302
ME		 1465 for (;;)
1466 {
8f78d0e9 1467 /* Do some initialization. */
025b0302
ME		 1468 opcode = insn->match;
1469 bzero (&the_insn, sizeof (the_insn));
8f78d0e9 1470
025b0302 1471 the_insn.reloc = R_HPPA_NONE;
8f78d0e9
KR		 1472
1473 /* Build the opcode, checking as we go to make
1474 sure that the operands match. */
025b0302
ME		 1475 for (args = insn->args;; ++args)
1476 {
025b0302
ME		 1477 switch (*args)
1478 {
1479
8f78d0e9
KR		 1480 /* End of arguments. */
1481 case '\0':
025b0302 1482 if (*s == '\0')
8f78d0e9 1483 match = TRUE;
025b0302
ME		 1484 break;
1485
1486 case '+':
1487 if (*s == '+')
1488 {
1489 ++s;
1490 continue;
1491 }
1492 if (*s == '-')
8f78d0e9 1493 continue;
025b0302
ME		 1494 break;
1495
8f78d0e9
KR		 1496 /* These must match exactly. */
1497 case '(':
025b0302
ME		 1498 case ')':
1499 case ',':
1500 case ' ':
1501 if (*s++ == *args)
1502 continue;
1503 break;
1504
8f78d0e9
KR		 1505 /* Handle a 5 bit register or control register field at 10. */
1506 case 'b':
1507 case '^':
48153d49
JL		 1508 num = pa_parse_number (&s, 0);
1509 CHECK_FIELD (num, 31, 0, 0);
1510 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 1511
1512 /* Handle a 5 bit register field at 15. */
1513 case 'x':
48153d49
JL		 1514 num = pa_parse_number (&s, 0);
1515 CHECK_FIELD (num, 31, 0, 0);
1516 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
5cf4cd1b 1517
8f78d0e9
KR		 1518 /* Handle a 5 bit register field at 31. */
1519 case 'y':
1520 case 't':
48153d49
JL		 1521 num = pa_parse_number (&s, 0);
1522 CHECK_FIELD (num, 31, 0, 0);
1523 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 1524
1525 /* Handle a 5 bit field length at 31. */
1526 case 'T':
48153d49
JL		 1527 num = pa_get_absolute_expression (&the_insn, &s);
1528 s = expr_end;
1529 CHECK_FIELD (num, 32, 1, 0);
1530 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
8f78d0e9
KR		 1531
1532 /* Handle a 5 bit immediate at 15. */
1533 case '5':
48153d49
JL		 1534 num = pa_get_absolute_expression (&the_insn, &s);
1535 s = expr_end;
1536 CHECK_FIELD (num, 15, -16, 0);
1537 low_sign_unext (num, 5, &num);
1538 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1539
48153d49
JL		 1540 /* Handle a 5 bit immediate at 31. */
1541 case 'V':
1542 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 1543 s = expr_end;
48153d49 1544 CHECK_FIELD (num, 15, -16, 0)
c5e9ccd0 1545 low_sign_unext (num, 5, &num);
48153d49
JL		 1546 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1547
1548 /* Handle an unsigned 5 bit immediate at 31. */
1549 case 'r':
1550 num = pa_get_absolute_expression (&the_insn, &s);
1551 s = expr_end;
1552 CHECK_FIELD (num, 31, 0, 0);
1553 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1554
1555 /* Handle an unsigned 5 bit immediate at 15. */
1556 case 'R':
1557 num = pa_get_absolute_expression (&the_insn, &s);
1558 s = expr_end;
1559 CHECK_FIELD (num, 31, 0, 0);
1560 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1561
8f78d0e9
KR		 1562 /* Handle a 2 bit space identifier at 17. */
1563 case 's':
48153d49
JL		 1564 num = pa_parse_number (&s, 0);
1565 CHECK_FIELD (num, 3, 0, 1);
1566 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
8f78d0e9
KR		 1567
1568 /* Handle a 3 bit space identifier at 18. */
1569 case 'S':
48153d49
JL		 1570 num = pa_parse_number (&s, 0);
1571 CHECK_FIELD (num, 7, 0, 1);
1572 dis_assemble_3 (num, &num);
1573 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 1574
1575 /* Handle a completer for an indexing load or store. */
1576 case 'c':
48153d49
JL		 1577 {
1578 int uu = 0;
1579 int m = 0;
1580 int i = 0;
1581 while (*s == ',' && i < 2)
1582 {
1583 s++;
1584 if (strncasecmp (s, "sm", 2) == 0)
1585 {
1586 uu = 1;
1587 m = 1;
1588 s++;
1589 i++;
1590 }
1591 else if (strncasecmp (s, "m", 1) == 0)
025b0302 1592 m = 1;
48153d49
JL		 1593 else if (strncasecmp (s, "s", 1) == 0)
1594 uu = 1;
1595 else
1596 as_bad ("Invalid Indexed Load Completer.");
1597 s++;
1598 i++;
1599 }
1600 if (i > 2)
1601 as_bad ("Invalid Indexed Load Completer Syntax.");
1602 opcode |= m << 5;
1603 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
1604 }
8f78d0e9
KR		 1605
1606 /* Handle a short load/store completer. */
1607 case 'C':
48153d49
JL		 1608 {
1609 int a = 0;
1610 int m = 0;
1611 if (*s == ',')
1612 {
1613 s++;
1614 if (strncasecmp (s, "ma", 2) == 0)
1615 {
1616 a = 0;
1617 m = 1;
1618 }
1619 else if (strncasecmp (s, "mb", 2) == 0)
1620 {
1621 a = 1;
1622 m = 1;
1623 }
1624 else
1625 as_bad ("Invalid Short Load/Store Completer.");
1626 s += 2;
1627 }
1628 opcode |= m << 5;
1629 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1630 }
8f78d0e9
KR		 1631
1632 /* Handle a stbys completer. */
1633 case 'Y':
48153d49
JL		 1634 {
1635 int a = 0;
1636 int m = 0;
1637 int i = 0;
1638 while (*s == ',' && i < 2)
1639 {
1640 s++;
1641 if (strncasecmp (s, "m", 1) == 0)
1642 m = 1;
1643 else if (strncasecmp (s, "b", 1) == 0)
1644 a = 0;
1645 else if (strncasecmp (s, "e", 1) == 0)
1646 a = 1;
1647 else
1648 as_bad ("Invalid Store Bytes Short Completer");
1649 s++;
1650 i++;
1651 }
1652 if (i > 2)
1653 as_bad ("Invalid Store Bytes Short Completer");
1654 opcode |= m << 5;
1655 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1656 }
8f78d0e9
KR		 1657
1658 /* Handle a non-negated compare/stubtract condition. */
1659 case '<':
5cf4cd1b 1660 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1661 if (cmpltr < 0)
1662 {
8f78d0e9 1663 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
025b0302
ME		 1664 cmpltr = 0;
1665 }
48153d49 1666 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1667
1668 /* Handle a negated or non-negated compare/subtract condition. */
1669 case '?':
025b0302 1670 save_s = s;
5cf4cd1b 1671 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1672 if (cmpltr < 0)
1673 {
1674 s = save_s;
5cf4cd1b 1675 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1676 if (cmpltr < 0)
1677 {
8f78d0e9 1678 as_bad ("Invalid Compare/Subtract Condition.");
025b0302
ME		 1679 cmpltr = 0;
1680 }
1681 else
1682 {
8f78d0e9
KR		 1683 /* Negated condition requires an opcode change. */
1684 opcode |= 1 << 27;
025b0302
ME		 1685 }
1686 }
48153d49 1687 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9 1688
e03095c9 1689 /* Handle non-negated add condition. */
8f78d0e9 1690 case '!':
e03095c9
JL		 1691 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
1692 if (cmpltr < 0)
1693 {
1694 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
1695 cmpltr = 0;
1696 }
1697 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
1698
1699 /* Handle a negated or non-negated add condition. */
1700 case '@':
025b0302 1701 save_s = s;
5cf4cd1b 1702 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
025b0302
ME		 1703 if (cmpltr < 0)
1704 {
1705 s = save_s;
5cf4cd1b 1706 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
025b0302
ME		 1707 if (cmpltr < 0)
1708 {
8f78d0e9 1709 as_bad ("Invalid Compare/Subtract Condition");
025b0302
ME		 1710 cmpltr = 0;
1711 }
1712 else
1713 {
8f78d0e9
KR		 1714 /* Negated condition requires an opcode change. */
1715 opcode |= 1 << 27;
025b0302
ME		 1716 }
1717 }
48153d49 1718 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1719
1720 /* Handle a compare/subtract condition. */
1721 case 'a':
025b0302 1722 cmpltr = 0;
8f78d0e9 1723 flag = 0;
025b0302
ME		 1724 save_s = s;
1725 if (*s == ',')
1726 {
5cf4cd1b 1727 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 0);
025b0302
ME		 1728 if (cmpltr < 0)
1729 {
8f78d0e9 1730 flag = 1;
025b0302 1731 s = save_s;
5cf4cd1b 1732 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 0);
025b0302
ME		 1733 if (cmpltr < 0)
1734 {
8f78d0e9 1735 as_bad ("Invalid Compare/Subtract Condition");
025b0302
ME		 1736 }
1737 }
1738 }
1739 opcode |= cmpltr << 13;
48153d49 1740 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1741
1742 /* Handle a non-negated add condition. */
1743 case 'd':
025b0302
ME		 1744 cmpltr = 0;
1745 nullif = 0;
1746 flag = 0;
1747 if (*s == ',')
1748 {
1749 s++;
1750 name = s;
1751 while (*s != ',' && *s != ' ' && *s != '\t')
1752 s += 1;
1753 c = *s;
1754 *s = 0x00;
1755 if (strcmp (name, "=") == 0)
8f78d0e9 1756 cmpltr = 1;
025b0302 1757 else if (strcmp (name, "<") == 0)
8f78d0e9 1758 cmpltr = 2;
025b0302 1759 else if (strcmp (name, "<=") == 0)
8f78d0e9 1760 cmpltr = 3;
025b0302 1761 else if (strcasecmp (name, "nuv") == 0)
8f78d0e9 1762 cmpltr = 4;
025b0302 1763 else if (strcasecmp (name, "znv") == 0)
8f78d0e9 1764 cmpltr = 5;
025b0302 1765 else if (strcasecmp (name, "sv") == 0)
8f78d0e9 1766 cmpltr = 6;
025b0302 1767 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1768 cmpltr = 7;
025b0302 1769 else if (strcasecmp (name, "n") == 0)
8f78d0e9 1770 nullif = 1;
025b0302
ME		 1771 else if (strcasecmp (name, "tr") == 0)
1772 {
1773 cmpltr = 0;
1774 flag = 1;
1775 }
4047ff1d 1776 else if (strcmp (name, "<>") == 0)
025b0302
ME		 1777 {
1778 cmpltr = 1;
1779 flag = 1;
1780 }
4047ff1d 1781 else if (strcmp (name, ">=") == 0)
025b0302
ME		 1782 {
1783 cmpltr = 2;
1784 flag = 1;
1785 }
4047ff1d 1786 else if (strcmp (name, ">") == 0)
025b0302
ME		 1787 {
1788 cmpltr = 3;
1789 flag = 1;
1790 }
1791 else if (strcasecmp (name, "uv") == 0)
1792 {
1793 cmpltr = 4;
1794 flag = 1;
1795 }
1796 else if (strcasecmp (name, "vnz") == 0)
1797 {
1798 cmpltr = 5;
1799 flag = 1;
1800 }
1801 else if (strcasecmp (name, "nsv") == 0)
1802 {
1803 cmpltr = 6;
1804 flag = 1;
1805 }
1806 else if (strcasecmp (name, "ev") == 0)
1807 {
1808 cmpltr = 7;
1809 flag = 1;
1810 }
1811 else
8f78d0e9 1812 as_bad ("Invalid Add Condition: %s", name);
025b0302
ME		 1813 *s = c;
1814 }
1815 nullif = pa_parse_nullif (&s);
1816 opcode |= nullif << 1;
1817 opcode |= cmpltr << 13;
48153d49 1818 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9 1819
48153d49 1820 /* HANDLE a logical instruction condition. */
8f78d0e9 1821 case '&':
025b0302 1822 cmpltr = 0;
8f78d0e9 1823 flag = 0;
025b0302
ME		 1824 if (*s == ',')
1825 {
1826 s++;
1827 name = s;
1828 while (*s != ',' && *s != ' ' && *s != '\t')
1829 s += 1;
1830 c = *s;
1831 *s = 0x00;
1832 if (strcmp (name, "=") == 0)
8f78d0e9 1833 cmpltr = 1;
025b0302 1834 else if (strcmp (name, "<") == 0)
8f78d0e9 1835 cmpltr = 2;
025b0302 1836 else if (strcmp (name, "<=") == 0)
8f78d0e9 1837 cmpltr = 3;
025b0302 1838 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1839 cmpltr = 7;
025b0302
ME		 1840 else if (strcasecmp (name, "tr") == 0)
1841 {
1842 cmpltr = 0;
8f78d0e9 1843 flag = 1;
025b0302
ME		 1844 }
1845 else if (strcmp (name, "<>") == 0)
1846 {
1847 cmpltr = 1;
8f78d0e9 1848 flag = 1;
025b0302
ME		 1849 }
1850 else if (strcmp (name, ">=") == 0)
1851 {
1852 cmpltr = 2;
8f78d0e9 1853 flag = 1;
025b0302
ME		 1854 }
1855 else if (strcmp (name, ">") == 0)
1856 {
1857 cmpltr = 3;
8f78d0e9 1858 flag = 1;
025b0302
ME		 1859 }
1860 else if (strcasecmp (name, "ev") == 0)
1861 {
1862 cmpltr = 7;
8f78d0e9 1863 flag = 1;
025b0302
ME		 1864 }
1865 else
8f78d0e9 1866 as_bad ("Invalid Logical Instruction Condition.");
025b0302
ME		 1867 *s = c;
1868 }
1869 opcode |= cmpltr << 13;
48153d49 1870 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1871
1872 /* Handle a unit instruction condition. */
1873 case 'U':
025b0302 1874 cmpltr = 0;
8f78d0e9 1875 flag = 0;
025b0302
ME		 1876 if (*s == ',')
1877 {
1878 s++;
1879 if (strncasecmp (s, "sbz", 3) == 0)
1880 {
1881 cmpltr = 2;
1882 s += 3;
1883 }
1884 else if (strncasecmp (s, "shz", 3) == 0)
1885 {
1886 cmpltr = 3;
1887 s += 3;
1888 }
1889 else if (strncasecmp (s, "sdc", 3) == 0)
1890 {
1891 cmpltr = 4;
1892 s += 3;
1893 }
1894 else if (strncasecmp (s, "sbc", 3) == 0)
1895 {
1896 cmpltr = 6;
1897 s += 3;
1898 }
1899 else if (strncasecmp (s, "shc", 3) == 0)
1900 {
1901 cmpltr = 7;
1902 s += 3;
1903 }
1904 else if (strncasecmp (s, "tr", 2) == 0)
1905 {
1906 cmpltr = 0;
8f78d0e9 1907 flag = 1;
025b0302
ME		 1908 s += 2;
1909 }
1910 else if (strncasecmp (s, "nbz", 3) == 0)
1911 {
1912 cmpltr = 2;
8f78d0e9 1913 flag = 1;
025b0302
ME		 1914 s += 3;
1915 }
1916 else if (strncasecmp (s, "nhz", 3) == 0)
1917 {
1918 cmpltr = 3;
8f78d0e9 1919 flag = 1;
025b0302
ME		 1920 s += 3;
1921 }
1922 else if (strncasecmp (s, "ndc", 3) == 0)
1923 {
1924 cmpltr = 4;
8f78d0e9 1925 flag = 1;
025b0302
ME		 1926 s += 3;
1927 }
1928 else if (strncasecmp (s, "nbc", 3) == 0)
1929 {
1930 cmpltr = 6;
8f78d0e9 1931 flag = 1;
025b0302
ME		 1932 s += 3;
1933 }
1934 else if (strncasecmp (s, "nhc", 3) == 0)
1935 {
1936 cmpltr = 7;
8f78d0e9 1937 flag = 1;
025b0302
ME		 1938 s += 3;
1939 }
1940 else
8f78d0e9 1941 as_bad ("Invalid Logical Instruction Condition.");
025b0302
ME		 1942 }
1943 opcode |= cmpltr << 13;
48153d49 1944 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1945
1946 /* Handle a shift/extract/deposit condition. */
1947 case '|':
1948 case '>':
025b0302
ME		 1949 cmpltr = 0;
1950 if (*s == ',')
1951 {
8f78d0e9 1952 save_s = s++;
025b0302
ME		 1953 name = s;
1954 while (*s != ',' && *s != ' ' && *s != '\t')
1955 s += 1;
1956 c = *s;
1957 *s = 0x00;
1958 if (strcmp (name, "=") == 0)
8f78d0e9 1959 cmpltr = 1;
025b0302 1960 else if (strcmp (name, "<") == 0)
8f78d0e9 1961 cmpltr = 2;
025b0302 1962 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1963 cmpltr = 3;
025b0302 1964 else if (strcasecmp (name, "tr") == 0)
8f78d0e9 1965 cmpltr = 4;
025b0302 1966 else if (strcmp (name, "<>") == 0)
8f78d0e9 1967 cmpltr = 5;
025b0302 1968 else if (strcmp (name, ">=") == 0)
8f78d0e9 1969 cmpltr = 6;
025b0302 1970 else if (strcasecmp (name, "ev") == 0)
8f78d0e9 1971 cmpltr = 7;
5cf4cd1b
KR		 1972 /* Handle movb,n. Put things back the way they were.
1973 This includes moving s back to where it started. */
1974 else if (strcasecmp (name, "n") == 0 && *args == '|')
1975 {
1976 *s = c;
1977 s = save_s;
1978 continue;
1979 }
025b0302 1980 else
8f78d0e9 1981 as_bad ("Invalid Shift/Extract/Deposit Condition.");
025b0302
ME		 1982 *s = c;
1983 }
48153d49 1984 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1985
1986 /* Handle bvb and bb conditions. */
1987 case '~':
025b0302
ME		 1988 cmpltr = 0;
1989 if (*s == ',')
1990 {
1991 s++;
1992 if (strncmp (s, "<", 1) == 0)
1993 {
1994 cmpltr = 2;
1995 s++;
1996 }
1997 else if (strncmp (s, ">=", 2) == 0)
1998 {
1999 cmpltr = 6;
2000 s += 2;
2001 }
2002 else
8f78d0e9 2003 as_bad ("Invalid Bit Branch Condition: %c", *s);
025b0302 2004 }
48153d49 2005 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9 2006
48153d49
JL		 2007 /* Handle a system control completer. */
2008 case 'Z':
2009 if (*s == ',' && (*(s + 1) == 'm' || *(s + 1) == 'M'))
025b0302 2010 {
48153d49
JL		 2011 flag = 1;
2012 s += 2;
025b0302 2013 }
48153d49
JL		 2014 else
2015 flag = 0;
8f78d0e9 2016
48153d49
JL		 2017 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
2018
2019 /* Handle a nullification completer for branch instructions. */
2020 case 'n':
2021 nullif = pa_parse_nullif (&s);
2022 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
8f78d0e9 2023
d0286a21
JL		 2024 /* Handle a nullification completer for copr and spop insns. */
2025 case 'N':
2026 nullif = pa_parse_nullif (&s);
2027 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2028
8f78d0e9
KR		 2029 /* Handle a 11 bit immediate at 31. */
2030 case 'i':
2031 the_insn.field_selector = pa_chk_field_selector (&s);
2032 get_expression (s);
48153d49 2033 s = expr_end;
5cf4cd1b 2034 if (the_insn.exp.X_op == O_constant)
025b0302 2035 {
48153d49
JL		 2036 num = evaluate_absolute (&the_insn);
2037 CHECK_FIELD (num, 1023, -1024, 0);
2038 low_sign_unext (num, 11, &num);
2039 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2040 }
2041 else
2042 {
025b0302
ME		 2043 if (is_DP_relative (the_insn.exp))
2044 the_insn.reloc = R_HPPA_GOTOFF;
2045 else if (is_PC_relative (the_insn.exp))
2046 the_insn.reloc = R_HPPA_PCREL_CALL;
2047 else if (is_complex (the_insn.exp))
2048 the_insn.reloc = R_HPPA_COMPLEX;
2049 else
2050 the_insn.reloc = R_HPPA;
2051 the_insn.format = 11;
48153d49 2052 continue;
025b0302 2053 }
8f78d0e9
KR		 2054
2055 /* Handle a 14 bit immediate at 31. */
2056 case 'j':
025b0302 2057 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2058 get_expression (s);
48153d49 2059 s = expr_end;
5cf4cd1b 2060 if (the_insn.exp.X_op == O_constant)
025b0302 2061 {
48153d49
JL		 2062 num = evaluate_absolute (&the_insn);
2063 CHECK_FIELD (num, 8191, -8192, 0);
2064 low_sign_unext (num, 14, &num);
2065 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2066 }
2067 else
2068 {
2069 if (is_DP_relative (the_insn.exp))
2070 the_insn.reloc = R_HPPA_GOTOFF;
2071 else if (is_PC_relative (the_insn.exp))
2072 the_insn.reloc = R_HPPA_PCREL_CALL;
2073 else if (is_complex (the_insn.exp))
2074 the_insn.reloc = R_HPPA_COMPLEX;
2075 else
2076 the_insn.reloc = R_HPPA;
2077 the_insn.format = 14;
48153d49 2078 continue;
025b0302 2079 }
025b0302 2080
8f78d0e9
KR		 2081 /* Handle a 21 bit immediate at 31. */
2082 case 'k':
2083 the_insn.field_selector = pa_chk_field_selector (&s);
2084 get_expression (s);
48153d49 2085 s = expr_end;
5cf4cd1b 2086 if (the_insn.exp.X_op == O_constant)
025b0302 2087 {
48153d49 2088 num = evaluate_absolute (&the_insn);
c5e9ccd0 2089 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
48153d49
JL		 2090 dis_assemble_21 (num, &num);
2091 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2092 }
2093 else
2094 {
025b0302
ME		 2095 if (is_DP_relative (the_insn.exp))
2096 the_insn.reloc = R_HPPA_GOTOFF;
2097 else if (is_PC_relative (the_insn.exp))
2098 the_insn.reloc = R_HPPA_PCREL_CALL;
2099 else if (is_complex (the_insn.exp))
2100 the_insn.reloc = R_HPPA_COMPLEX;
2101 else
2102 the_insn.reloc = R_HPPA;
2103 the_insn.format = 21;
48153d49 2104 continue;
025b0302 2105 }
8f78d0e9
KR		 2106
2107 /* Handle a 12 bit branch displacement. */
2108 case 'w':
2109 the_insn.field_selector = pa_chk_field_selector (&s);
2110 get_expression (s);
48153d49 2111 s = expr_end;
025b0302 2112 the_insn.pcrel = 1;
48153d49 2113 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
025b0302
ME		 2114 {
2115 unsigned int w1, w, result;
2116
48153d49
JL		 2117 num = evaluate_absolute (&the_insn);
2118 if (num % 4)
2119 {
2120 as_bad ("Branch to unaligned address");
2121 break;
2122 }
2123 CHECK_FIELD (num, 8191, -8192, 0);
2124 sign_unext ((num - 8) >> 2, 12, &result);
025b0302 2125 dis_assemble_12 (result, &w1, &w);
48153d49 2126 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
025b0302
ME		 2127 }
2128 else
2129 {
025b0302
ME		 2130 if (is_complex (the_insn.exp))
2131 the_insn.reloc = R_HPPA_COMPLEX_PCREL_CALL;
2132 else
2133 the_insn.reloc = R_HPPA_PCREL_CALL;
2134 the_insn.format = 12;
2135 the_insn.arg_reloc = last_call_desc.arg_reloc;
8f78d0e9 2136 bzero (&last_call_desc, sizeof (struct call_desc));
48153d49
JL		 2137 s = expr_end;
2138 continue;
025b0302 2139 }
8f78d0e9
KR		 2140
2141 /* Handle a 17 bit branch displacement. */
2142 case 'W':
025b0302 2143 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2144 get_expression (s);
48153d49 2145 s = expr_end;
025b0302 2146 the_insn.pcrel = 1;
c5e9ccd0 2147 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2148 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2149 "L$0\001"))
025b0302 2150 {
48153d49 2151 unsigned int w2, w1, w, result;
025b0302 2152
48153d49
JL		 2153 num = evaluate_absolute (&the_insn);
2154 if (num % 4)
025b0302 2155 {
48153d49
JL		 2156 as_bad ("Branch to unaligned address");
2157 break;
025b0302 2158 }
48153d49
JL		 2159 CHECK_FIELD (num, 262143, -262144, 0);
2160
2161 if (the_insn.exp.X_add_symbol)
2162 num -= 8;
2163
2164 sign_unext (num >> 2, 17, &result);
2165 dis_assemble_17 (result, &w1, &w2, &w);
2166 INSERT_FIELD_AND_CONTINUE (opcode,
c5e9ccd0 2167 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2168 }
2169 else
2170 {
48153d49
JL		 2171 if (is_complex (the_insn.exp))
2172 the_insn.reloc = R_HPPA_COMPLEX_PCREL_CALL;
2173 else
2174 the_insn.reloc = R_HPPA_PCREL_CALL;
2175 the_insn.format = 17;
2176 the_insn.arg_reloc = last_call_desc.arg_reloc;
2177 bzero (&last_call_desc, sizeof (struct call_desc));
2178 continue;
025b0302 2179 }
8f78d0e9
KR		 2180
2181 /* Handle an absolute 17 bit branch target. */
2182 case 'z':
025b0302 2183 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2184 get_expression (s);
48153d49 2185 s = expr_end;
025b0302 2186 the_insn.pcrel = 0;
c5e9ccd0 2187 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2188 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2189 "L$0\001"))
025b0302 2190 {
48153d49 2191 unsigned int w2, w1, w, result;
c5e9ccd0 2192
48153d49
JL		 2193 num = evaluate_absolute (&the_insn);
2194 if (num % 4)
025b0302 2195 {
48153d49
JL		 2196 as_bad ("Branch to unaligned address");
2197 break;
025b0302 2198 }
48153d49
JL		 2199 CHECK_FIELD (num, 262143, -262144, 0);
2200
2201 if (the_insn.exp.X_add_symbol)
2202 num -= 8;
2203
2204 sign_unext (num >> 2, 17, &result);
2205 dis_assemble_17 (result, &w1, &w2, &w);
c5e9ccd0
JL		 2206 INSERT_FIELD_AND_CONTINUE (opcode,
2207 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2208 }
2209 else
2210 {
48153d49
JL		 2211 if (is_complex (the_insn.exp))
2212 the_insn.reloc = R_HPPA_COMPLEX_ABS_CALL;
2213 else
2214 the_insn.reloc = R_HPPA_ABS_CALL;
2215 the_insn.format = 17;
2216 continue;
025b0302 2217 }
8f78d0e9
KR		 2218
2219 /* Handle a 5 bit shift count at 26. */
2220 case 'p':
48153d49 2221 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2222 s = expr_end;
48153d49
JL		 2223 CHECK_FIELD (num, 31, 0, 0);
2224 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
8f78d0e9
KR		 2225
2226 /* Handle a 5 bit bit position at 26. */
2227 case 'P':
48153d49 2228 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2229 s = expr_end;
48153d49
JL		 2230 CHECK_FIELD (num, 31, 0, 0);
2231 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
8f78d0e9
KR		 2232
2233 /* Handle a 5 bit immediate at 10. */
2234 case 'Q':
48153d49 2235 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2236 s = expr_end;
48153d49
JL		 2237 CHECK_FIELD (num, 31, 0, 0);
2238 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 2239
2240 /* Handle a 13 bit immediate at 18. */
2241 case 'A':
48153d49 2242 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2243 s = expr_end;
48153d49
JL		 2244 CHECK_FIELD (num, 4095, -4096, 0);
2245 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 2246
2247 /* Handle a 26 bit immediate at 31. */
2248 case 'D':
48153d49 2249 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2250 s = expr_end;
48153d49
JL		 2251 CHECK_FIELD (num, 671108864, 0, 0);
2252 INSERT_FIELD_AND_CONTINUE (opcode, num, 1);
8f78d0e9
KR		 2253
2254 /* Handle a 3 bit SFU identifier at 25. */
2255 case 'f':
51517966
JL		 2256 if (*s++ != ',')
2257 as_bad ("Invalid SFU identifier");
48153d49
JL		 2258 num = pa_get_absolute_expression (&the_insn, &s);
2259 s = expr_end;
2260 CHECK_FIELD (num, 7, 0, 0);
2261 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
8f78d0e9 2262
d0286a21 2263 /* Handle a 20 bit SOP field for spop0. */
8f78d0e9 2264 case 'O':
d0286a21 2265 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2266 s = expr_end;
d0286a21
JL		 2267 CHECK_FIELD (num, 1048575, 0, 0);
2268 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
2269 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2270
2271 /* Handle a 15bit SOP field for spop1. */
2272 case 'o':
2273 num = pa_get_absolute_expression (&the_insn, &s);
2274 s = expr_end;
2275 CHECK_FIELD (num, 32767, 0, 0);
2276 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
2277
2278 /* Handle a 10bit SOP field for spop3. */
2279 case '0':
2280 num = pa_get_absolute_expression (&the_insn, &s);
2281 s = expr_end;
2282 CHECK_FIELD (num, 1023, 0, 0);
2283 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
2284 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2285
2286 /* Handle a 15 bit SOP field for spop2. */
2287 case '1':
2288 num = pa_get_absolute_expression (&the_insn, &s);
2289 s = expr_end;
2290 CHECK_FIELD (num, 32767, 0, 0);
2291 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
2292 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2293
2294 /* Handle a 3-bit co-processor ID field. */
2295 case 'u':
51517966
JL		 2296 if (*s++ != ',')
2297 as_bad ("Invalid COPR identifier");
d0286a21
JL		 2298 num = pa_get_absolute_expression (&the_insn, &s);
2299 s = expr_end;
2300 CHECK_FIELD (num, 7, 0, 0);
2301 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2302
2303 /* Handle a 22bit SOP field for copr. */
2304 case '2':
2305 num = pa_get_absolute_expression (&the_insn, &s);
2306 s = expr_end;
2307 CHECK_FIELD (num, 4194303, 0, 0);
2308 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
2309 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 2310
2311 /* Handle a source FP operand format completer. */
2312 case 'F':
2313 flag = pa_parse_fp_format (&s);
8f78d0e9 2314 the_insn.fpof1 = flag;
48153d49 2315 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
8f78d0e9
KR		 2316
2317 /* Handle a destination FP operand format completer. */
2318 case 'G':
8f78d0e9
KR		 2319 /* pa_parse_format needs the ',' prefix. */
2320 s--;
2321 flag = pa_parse_fp_format (&s);
8f78d0e9 2322 the_insn.fpof2 = flag;
48153d49 2323 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
8f78d0e9
KR		 2324
2325 /* Handle FP compare conditions. */
2326 case 'M':
025b0302 2327 cond = pa_parse_fp_cmp_cond (&s);
48153d49 2328 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
025b0302 2329
8f78d0e9
KR		 2330 /* Handle L/R register halves like 't'. */
2331 case 'v':
025b0302
ME		 2332 {
2333 struct pa_89_fp_reg_struct result;
025b0302 2334
8f78d0e9 2335 pa_parse_number (&s, &result);
48153d49
JL		 2336 CHECK_FIELD (result.number_part, 31, 0, 0);
2337 opcode |= result.number_part;
025b0302 2338
48153d49
JL		 2339 /* 0x30 opcodes are FP arithmetic operation opcodes
2340 and need to be turned into 0x38 opcodes. This
2341 is not necessary for loads/stores. */
2342 if (need_89_opcode (&the_insn, &result)
2343 && ((opcode & 0xfc000000) == 0x30000000))
2344 opcode |= 1 << 27;
2345
2346 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
025b0302 2347 }
8f78d0e9
KR		 2348
2349 /* Handle L/R register halves like 'b'. */
2350 case 'E':
025b0302
ME		 2351 {
2352 struct pa_89_fp_reg_struct result;
025b0302 2353
8f78d0e9 2354 pa_parse_number (&s, &result);
48153d49
JL		 2355 CHECK_FIELD (result.number_part, 31, 0, 0);
2356 opcode |= result.number_part << 21;
2357 if (need_89_opcode (&the_insn, &result))
025b0302 2358 {
48153d49
JL		 2359 opcode |= (result.l_r_select & 1) << 7;
2360 opcode |= 1 << 27;
025b0302 2361 }
48153d49 2362 continue;
025b0302 2363 }
025b0302 2364
8f78d0e9
KR		 2365 /* Handle L/R register halves like 'x'. */
2366 case 'X':
025b0302
ME		 2367 {
2368 struct pa_89_fp_reg_struct result;
025b0302 2369
8f78d0e9 2370 pa_parse_number (&s, &result);
48153d49
JL		 2371 CHECK_FIELD (result.number_part, 31, 0, 0);
2372 opcode |= (result.number_part & 0x1f) << 16;
2373 if (need_89_opcode (&the_insn, &result))
025b0302 2374 {
48153d49
JL		 2375 opcode |= (result.l_r_select & 1) << 12;
2376 opcode |= 1 << 27;
025b0302 2377 }
48153d49 2378 continue;
025b0302 2379 }
025b0302 2380
8f78d0e9
KR		 2381 /* Handle a 5 bit register field at 10. */
2382 case '4':
025b0302
ME		 2383 {
2384 struct pa_89_fp_reg_struct result;
48153d49
JL		 2385
2386 pa_parse_number (&s, &result);
2387 CHECK_FIELD (result.number_part, 31, 0, 0);
2388 if (the_insn.fpof1 == SGL)
025b0302 2389 {
48153d49
JL		 2390 result.number_part &= 0xF;
2391 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2392 }
48153d49 2393 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
025b0302 2394 }
025b0302 2395
8f78d0e9
KR		 2396 /* Handle a 5 bit register field at 15. */
2397 case '6':
025b0302
ME		 2398 {
2399 struct pa_89_fp_reg_struct result;
025b0302 2400
48153d49
JL		 2401 pa_parse_number (&s, &result);
2402 CHECK_FIELD (result.number_part, 31, 0, 0);
2403 if (the_insn.fpof1 == SGL)
025b0302 2404 {
48153d49
JL		 2405 result.number_part &= 0xF;
2406 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2407 }
48153d49 2408 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
025b0302 2409 }
025b0302 2410
8f78d0e9
KR		 2411 /* Handle a 5 bit register field at 31. */
2412 case '7':
025b0302
ME		 2413 {
2414 struct pa_89_fp_reg_struct result;
025b0302 2415
48153d49
JL		 2416 pa_parse_number (&s, &result);
2417 CHECK_FIELD (result.number_part, 31, 0, 0);
2418 if (the_insn.fpof1 == SGL)
025b0302 2419 {
48153d49
JL		 2420 result.number_part &= 0xF;
2421 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2422 }
48153d49 2423 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 0);
025b0302 2424 }
025b0302 2425
8f78d0e9
KR		 2426 /* Handle a 5 bit register field at 20. */
2427 case '8':
025b0302
ME		 2428 {
2429 struct pa_89_fp_reg_struct result;
025b0302 2430
48153d49
JL		 2431 pa_parse_number (&s, &result);
2432 CHECK_FIELD (result.number_part, 31, 0, 0);
2433 if (the_insn.fpof1 == SGL)
025b0302 2434 {
48153d49
JL		 2435 result.number_part &= 0xF;
2436 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2437 }
48153d49 2438 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
025b0302 2439 }
025b0302 2440
8f78d0e9
KR		 2441 /* Handle a 5 bit register field at 25. */
2442 case '9':
025b0302
ME		 2443 {
2444 struct pa_89_fp_reg_struct result;
025b0302 2445
48153d49
JL		 2446 pa_parse_number (&s, &result);
2447 CHECK_FIELD (result.number_part, 31, 0, 0);
2448 if (the_insn.fpof1 == SGL)
025b0302 2449 {
48153d49
JL		 2450 result.number_part &= 0xF;
2451 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2452 }
48153d49 2453 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
025b0302 2454 }
025b0302 2455
8f78d0e9
KR		 2456 /* Handle a floating point operand format at 26.
2457 Only allows single and double precision. */
2458 case 'H':
2459 flag = pa_parse_fp_format (&s);
2460 switch (flag)
025b0302
ME		 2461 {
2462 case SGL:
2463 opcode |= 0x20;
2464 case DBL:
8f78d0e9 2465 the_insn.fpof1 = flag;
025b0302
ME		 2466 continue;
2467
2468 case QUAD:
2469 case ILLEGAL_FMT:
2470 default:
8f78d0e9 2471 as_bad ("Invalid Floating Point Operand Format.");
025b0302
ME		 2472 }
2473 break;
2474
2475 default:
2476 abort ();
2477 }
2478 break;
2479 }
892a3ff1 2480
8f78d0e9 2481 /* Check if the args matched. */
025b0302
ME		 2482 if (match == FALSE)
2483 {
025b0302
ME		 2484 if (&insn[1] - pa_opcodes < NUMOPCODES
2485 && !strcmp (insn->name, insn[1].name))
2486 {
2487 ++insn;
8f78d0e9 2488 s = argstart;
025b0302
ME		 2489 continue;
2490 }
2491 else
2492 {
8f78d0e9 2493 as_bad ("Invalid operands %s", error_message);
025b0302
ME		 2494 return;
2495 }
2496 }
2497 break;
2498 }
2499
2500 the_insn.opcode = opcode;
025b0302
ME		 2501}
2502
8f78d0e9 2503/* Turn a string in input_line_pointer into a floating point constant of type
025b0302 2504 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
8f78d0e9 2505 emitted is stored in *sizeP . An error message or NULL is returned. */
025b0302 2506
025b0302
ME		 2507#define MAX_LITTLENUMS 6
2508
2509char *
2510md_atof (type, litP, sizeP)
2511 char type;
2512 char *litP;
2513 int *sizeP;
2514{
2515 int prec;
2516 LITTLENUM_TYPE words[MAX_LITTLENUMS];
2517 LITTLENUM_TYPE *wordP;
2518 char *t;
025b0302
ME		 2519
2520 switch (type)
2521 {
2522
2523 case 'f':
2524 case 'F':
2525 case 's':
2526 case 'S':
2527 prec = 2;
2528 break;
2529
2530 case 'd':
2531 case 'D':
2532 case 'r':
2533 case 'R':
2534 prec = 4;
2535 break;
2536
2537 case 'x':
2538 case 'X':
2539 prec = 6;
2540 break;
2541
2542 case 'p':
2543 case 'P':
2544 prec = 6;
2545 break;
2546
2547 default:
2548 *sizeP = 0;
2549 return "Bad call to MD_ATOF()";
2550 }
2551 t = atof_ieee (input_line_pointer, type, words);
2552 if (t)
2553 input_line_pointer = t;
2554 *sizeP = prec * sizeof (LITTLENUM_TYPE);
2555 for (wordP = words; prec--;)
2556 {
8f78d0e9 2557 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
025b0302
ME		 2558 litP += sizeof (LITTLENUM_TYPE);
2559 }
aa8b30ed 2560 return NULL;
025b0302
ME		 2561}
2562
8f78d0e9
KR		 2563/* Write out big-endian. */
2564
025b0302
ME		 2565void
2566md_number_to_chars (buf, val, n)
2567 char *buf;
2568 valueT val;
2569 int n;
2570{
bfbfba45 2571 number_to_chars_bigendian (buf, val, n);
025b0302
ME		 2572}
2573
025b0302 2574/* Translate internal representation of relocation info to BFD target
62f0841b 2575 format. */
8f78d0e9 2576
025b0302
ME		 2577arelent **
2578tc_gen_reloc (section, fixp)
2579 asection *section;
2580 fixS *fixp;
2581{
2582 arelent *reloc;
fb338f1d 2583 struct hppa_fix_struct *hppa_fixp;
025b0302
ME		 2584 bfd_reloc_code_real_type code;
2585 static int unwind_reloc_fixp_cnt = 0;
2586 static arelent *unwind_reloc_entryP = NULL;
2587 static arelent *no_relocs = NULL;
2588 arelent **relocs;
2589 bfd_reloc_code_real_type **codes;
2590 int n_relocs;
2591 int i;
2592
fb338f1d 2593 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
025b0302
ME		 2594 if (fixp->fx_addsy == 0)
2595 return &no_relocs;
2596 assert (hppa_fixp != 0);
2597 assert (section != 0);
2598
62f0841b
JL		 2599#ifdef OBJ_ELF
2600 /* Yuk. I would really like to push all this ELF specific unwind
2601 crud into BFD and the linker. That's how SOM does it -- and
2602 if we could make ELF emulate that then we could share more code
2603 in GAS (and potentially a gnu-linker later).
2604
2605 Unwind section relocations are handled in a special way.
8f78d0e9
KR		 2606 The relocations for the .unwind section are originally
2607 built in the usual way. That is, for each unwind table
2608 entry there are two relocations: one for the beginning of
2609 the function and one for the end.
2610
2611 The first time we enter this function we create a
2612 relocation of the type R_HPPA_UNWIND_ENTRIES. The addend
2613 of the relocation is initialized to 0. Each additional
2614 pair of times this function is called for the unwind
2615 section represents an additional unwind table entry. Thus,
2616 the addend of the relocation should end up to be the number
2617 of unwind table entries. */
025b0302
ME		 2618 if (strcmp (UNWIND_SECTION_NAME, section->name) == 0)
2619 {
2620 if (unwind_reloc_entryP == NULL)
2621 {
c5e9ccd0 2622 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput,
8f78d0e9 2623 sizeof (arelent));
025b0302
ME		 2624 assert (reloc != 0);
2625 unwind_reloc_entryP = reloc;
2626 unwind_reloc_fixp_cnt++;
8f78d0e9
KR		 2627 unwind_reloc_entryP->address
2628 = fixp->fx_frag->fr_address + fixp->fx_where;
2629 /* A pointer to any function will do. We only
2630 need one to tell us what section the unwind
2631 relocations are for. */
025b0302 2632 unwind_reloc_entryP->sym_ptr_ptr = &fixp->fx_addsy->bsym;
8f78d0e9
KR		 2633 hppa_fixp->fx_r_type = code = R_HPPA_UNWIND_ENTRIES;
2634 fixp->fx_r_type = R_HPPA_UNWIND;
025b0302
ME		 2635 unwind_reloc_entryP->howto = bfd_reloc_type_lookup (stdoutput, code);
2636 unwind_reloc_entryP->addend = unwind_reloc_fixp_cnt / 2;
8f78d0e9
KR		 2637 relocs = (arelent **) bfd_alloc_by_size_t (stdoutput,
2638 sizeof (arelent *) * 2);
025b0302
ME		 2639 assert (relocs != 0);
2640 relocs[0] = unwind_reloc_entryP;
2641 relocs[1] = NULL;
2642 return relocs;
2643 }
2644 unwind_reloc_fixp_cnt++;
2645 unwind_reloc_entryP->addend = unwind_reloc_fixp_cnt / 2;
2646
2647 return &no_relocs;
2648 }
62f0841b 2649#endif
025b0302
ME		 2650
2651 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent));
2652 assert (reloc != 0);
2653
2654 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
aa8b30ed
JL		 2655 codes = hppa_gen_reloc_type (stdoutput,
2656 fixp->fx_r_type,
2657 hppa_fixp->fx_r_format,
2658 hppa_fixp->fx_r_field);
025b0302
ME		 2659
2660 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
2661 ;
2662
8f78d0e9
KR		 2663 relocs = (arelent **)
2664 bfd_alloc_by_size_t (stdoutput, sizeof (arelent *) * n_relocs + 1);
025b0302
ME		 2665 assert (relocs != 0);
2666
8f78d0e9
KR		 2667 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput,
2668 sizeof (arelent) * n_relocs);
025b0302
ME		 2669 if (n_relocs > 0)
2670 assert (reloc != 0);
2671
2672 for (i = 0; i < n_relocs; i++)
2673 relocs[i] = &reloc[i];
2674
2675 relocs[n_relocs] = NULL;
2676
62f0841b 2677#ifdef OBJ_ELF
025b0302
ME		 2678 switch (fixp->fx_r_type)
2679 {
2680 case R_HPPA_COMPLEX:
2681 case R_HPPA_COMPLEX_PCREL_CALL:
2682 case R_HPPA_COMPLEX_ABS_CALL:
2683 assert (n_relocs == 5);
2684
2685 for (i = 0; i < n_relocs; i++)
2686 {
2687 reloc[i].sym_ptr_ptr = NULL;
2688 reloc[i].address = 0;
2689 reloc[i].addend = 0;
2690 reloc[i].howto = bfd_reloc_type_lookup (stdoutput, *codes[i]);
2691 assert (reloc[i].howto && *codes[i] == reloc[i].howto->type);
2692 }
2693
2694 reloc[0].sym_ptr_ptr = &fixp->fx_addsy->bsym;
2695 reloc[1].sym_ptr_ptr = &fixp->fx_subsy->bsym;
2696 reloc[4].address = fixp->fx_frag->fr_address + fixp->fx_where;
2697
2698 if (fixp->fx_r_type == R_HPPA_COMPLEX)
2699 reloc[3].addend = fixp->fx_addnumber;
2700 else if (fixp->fx_r_type == R_HPPA_COMPLEX_PCREL_CALL ||
2701 fixp->fx_r_type == R_HPPA_COMPLEX_ABS_CALL)
2702 reloc[1].addend = fixp->fx_addnumber;
2703
2704 break;
2705
2706 default:
2707 assert (n_relocs == 1);
2708
2709 code = *codes[0];
2710
2711 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2712 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
2713 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2714 reloc->addend = 0; /* default */
2715
2716 assert (reloc->howto && code == reloc->howto->type);
2717
8f78d0e9 2718 /* Now, do any processing that is dependent on the relocation type. */
025b0302
ME		 2719 switch (code)
2720 {
2721 case R_HPPA_PLABEL_32:
2722 case R_HPPA_PLABEL_11:
2723 case R_HPPA_PLABEL_14:
2724 case R_HPPA_PLABEL_L21:
2725 case R_HPPA_PLABEL_R11:
2726 case R_HPPA_PLABEL_R14:
8f78d0e9
KR		 2727 /* For plabel relocations, the addend of the
2728 relocation should be either 0 (no static link) or 2
2729 (static link required).
2730
7b624bf2
JL		 2731 FIXME: We always assume no static link! */
2732 reloc->addend = 0;
025b0302
ME		 2733 break;
2734
2735 case R_HPPA_ABS_CALL_11:
2736 case R_HPPA_ABS_CALL_14:
2737 case R_HPPA_ABS_CALL_17:
2738 case R_HPPA_ABS_CALL_L21:
2739 case R_HPPA_ABS_CALL_R11:
2740 case R_HPPA_ABS_CALL_R14:
2741 case R_HPPA_ABS_CALL_R17:
2742 case R_HPPA_ABS_CALL_LS21:
2743 case R_HPPA_ABS_CALL_RS11:
2744 case R_HPPA_ABS_CALL_RS14:
2745 case R_HPPA_ABS_CALL_RS17:
2746 case R_HPPA_ABS_CALL_LD21:
2747 case R_HPPA_ABS_CALL_RD11:
2748 case R_HPPA_ABS_CALL_RD14:
2749 case R_HPPA_ABS_CALL_RD17:
2750 case R_HPPA_ABS_CALL_LR21:
2751 case R_HPPA_ABS_CALL_RR14:
2752 case R_HPPA_ABS_CALL_RR17:
2753
2754 case R_HPPA_PCREL_CALL_11:
2755 case R_HPPA_PCREL_CALL_14:
2756 case R_HPPA_PCREL_CALL_17:
2757 case R_HPPA_PCREL_CALL_L21:
2758 case R_HPPA_PCREL_CALL_R11:
2759 case R_HPPA_PCREL_CALL_R14:
2760 case R_HPPA_PCREL_CALL_R17:
2761 case R_HPPA_PCREL_CALL_LS21:
2762 case R_HPPA_PCREL_CALL_RS11:
2763 case R_HPPA_PCREL_CALL_RS14:
2764 case R_HPPA_PCREL_CALL_RS17:
2765 case R_HPPA_PCREL_CALL_LD21:
2766 case R_HPPA_PCREL_CALL_RD11:
2767 case R_HPPA_PCREL_CALL_RD14:
2768 case R_HPPA_PCREL_CALL_RD17:
2769 case R_HPPA_PCREL_CALL_LR21:
2770 case R_HPPA_PCREL_CALL_RR14:
2771 case R_HPPA_PCREL_CALL_RR17:
8f78d0e9
KR		 2772 /* The constant is stored in the instruction. */
2773 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
025b0302
ME		 2774 break;
2775 default:
2776 reloc->addend = fixp->fx_addnumber;
2777 break;
2778 }
2779 break;
2780 }
62f0841b 2781#else /* OBJ_SOM */
025b0302 2782
4165dcc2
JL		 2783 /* Walk over reach relocation returned by the BFD backend. */
2784 for (i = 0; i < n_relocs; i++)
62f0841b 2785 {
4165dcc2 2786 code = *codes[i];
c5e9ccd0 2787
4165dcc2
JL		 2788 relocs[i]->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2789 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
2790 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
025b0302 2791
62f0841b
JL		 2792 switch (code)
2793 {
2794 case R_PCREL_CALL:
2795 case R_ABS_CALL:
4165dcc2 2796 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
62f0841b 2797 break;
f2eed884
JL		 2798
2799 case R_DATA_PLABEL:
2800 case R_CODE_PLABEL:
2801 /* For plabel relocations, the addend of the
2802 relocation should be either 0 (no static link) or 2
2803 (static link required).
2804
2805 FIXME: We always assume no static link! */
4165dcc2
JL		 2806 relocs[i]->addend = 0;
2807 break;
2808
2809 case R_N_MODE:
2810 case R_S_MODE:
2811 case R_D_MODE:
2812 case R_R_MODE:
6868afe6
KR		 2813 case R_EXIT:
2814 case R_FSEL:
2815 case R_LSEL:
2816 case R_RSEL:
4165dcc2 2817 /* There is no symbol or addend associated with these fixups. */
fca59f9d 2818 relocs[i]->sym_ptr_ptr = &dummy_symbol->bsym;
4165dcc2 2819 relocs[i]->addend = 0;
f2eed884
JL		 2820 break;
2821
62f0841b 2822 default:
4165dcc2 2823 relocs[i]->addend = fixp->fx_addnumber;
62f0841b
JL		 2824 break;
2825 }
62f0841b 2826 }
025b0302
ME		 2827#endif
2828
62f0841b
JL		 2829 return relocs;
2830}
2831
8f78d0e9
KR		 2832/* Process any machine dependent frag types. */
2833
025b0302
ME		 2834void
2835md_convert_frag (abfd, sec, fragP)
2836 register bfd *abfd;
2837 register asection *sec;
2838 register fragS *fragP;
2839{
2840 unsigned int address;
2841
2842 if (fragP->fr_type == rs_machine_dependent)
2843 {
2844 switch ((int) fragP->fr_subtype)
2845 {
2846 case 0:
2847 fragP->fr_type = rs_fill;
2848 know (fragP->fr_var == 1);
2849 know (fragP->fr_next);
2850 address = fragP->fr_address + fragP->fr_fix;
2851 if (address % fragP->fr_offset)
2852 {
2853 fragP->fr_offset =
2854 fragP->fr_next->fr_address
2855 - fragP->fr_address
2856 - fragP->fr_fix;
2857 }
2858 else
2859 fragP->fr_offset = 0;
2860 break;
2861 }
8f78d0e9
KR		 2862 }
2863}
025b0302 2864
8f78d0e9 2865/* Round up a section size to the appropriate boundary. */
025b0302 2866
8f78d0e9
KR		 2867valueT
2868md_section_align (segment, size)
2869 asection *segment;
2870 valueT size;
025b0302 2871{
8f78d0e9
KR		 2872 int align = bfd_get_section_alignment (stdoutput, segment);
2873 int align2 = (1 << align) - 1;
025b0302 2874
8f78d0e9 2875 return (size + align2) & ~align2;
8f78d0e9 2876}
025b0302 2877
8f78d0e9
KR		 2878/* Create a short jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2879void
2880md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
2881 char *ptr;
2882 addressT from_addr, to_addr;
2883 fragS *frag;
2884 symbolS *to_symbol;
2885{
2886 fprintf (stderr, "pa_create_short_jmp\n");
2887 abort ();
2888}
025b0302 2889
8f78d0e9
KR		 2890/* Create a long jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2891void
2892md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
2893 char *ptr;
2894 addressT from_addr, to_addr;
2895 fragS *frag;
2896 symbolS *to_symbol;
2897{
2898 fprintf (stderr, "pa_create_long_jump\n");
2899 abort ();
025b0302
ME		 2900}
2901
8f78d0e9
KR		 2902/* Return the approximate size of a frag before relaxation has occurred. */
2903int
2904md_estimate_size_before_relax (fragP, segment)
2905 register fragS *fragP;
2906 asection *segment;
025b0302 2907{
8f78d0e9
KR		 2908 int size;
2909
2910 size = 0;
2911
2912 while ((fragP->fr_fix + size) % fragP->fr_offset)
2913 size++;
2914
2915 return size;
025b0302
ME		 2916}
2917
c5e9ccd0 2918/* Parse machine dependent options. There are none on the PA. */
8f78d0e9
KR		 2919int
2920md_parse_option (argP, cntP, vecP)
2921 char **argP;
2922 int *cntP;
2923 char ***vecP;
025b0302 2924{
8f78d0e9
KR		 2925 return 1;
2926}
025b0302 2927
8f78d0e9
KR		 2928/* We have no need to default values of symbols. */
2929
2930symbolS *
2931md_undefined_symbol (name)
2932 char *name;
2933{
2934 return 0;
025b0302
ME		 2935}
2936
8f78d0e9
KR		 2937/* Parse an operand that is machine-specific.
2938 We just return without modifying the expression as we have nothing
2939 to do on the PA. */
2940
2941void
2942md_operand (expressionP)
2943 expressionS *expressionP;
025b0302 2944{
8f78d0e9 2945}
025b0302 2946
753dcbbd 2947/* Apply a fixup to an instruction. */
8f78d0e9 2948
753dcbbd
JL		 2949int
2950md_apply_fix (fixP, valp)
8f78d0e9 2951 fixS *fixP;
753dcbbd 2952 valueT *valp;
025b0302 2953{
8f78d0e9 2954 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
fb338f1d 2955 struct hppa_fix_struct *hppa_fixP;
8f78d0e9
KR		 2956 long new_val, result;
2957 unsigned int w1, w2, w;
753dcbbd 2958 valueT val = *valp;
8f78d0e9 2959
fb338f1d 2960 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
ff852e11 2961 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
753dcbbd 2962 never be "applied" (they are just markers). */
ff852e11
JL		 2963#ifdef OBJ_SOM
2964 if (fixP->fx_r_type == R_HPPA_ENTRY
2965 || fixP->fx_r_type == R_HPPA_EXIT)
753dcbbd 2966 return 1;
ff852e11
JL		 2967#endif
2968
8f78d0e9
KR		 2969 /* There should have been an HPPA specific fixup associated
2970 with the GAS fixup. */
2971 if (hppa_fixP)
2972 {
2973 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
aa8b30ed 2974 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
8f78d0e9 2975
aa8b30ed
JL		 2976 if (fixP->fx_r_type == R_HPPA_NONE)
2977 fmt = 0;
8f78d0e9
KR		 2978
2979 /* Remember this value for emit_reloc. FIXME, is this braindamage
c5e9ccd0 2980 documented anywhere!?! */
8f78d0e9
KR		 2981 fixP->fx_addnumber = val;
2982
2983 /* Check if this is an undefined symbol. No relocation can
fca59f9d
JL		 2984 possibly be performed in this case.
2985
2986 Also avoid doing anything for pc-relative fixups in which the
2987 fixup is in a different space than the symbol it references. */
8f78d0e9
KR		 2988 if ((fixP->fx_addsy && fixP->fx_addsy->bsym->section == &bfd_und_section)
2989 || (fixP->fx_subsy
fca59f9d 2990 && fixP->fx_subsy->bsym->section == &bfd_und_section)
86066d06
JL		 2991 || (fixP->fx_pcrel
2992 && fixP->fx_addsy
fca59f9d 2993 && S_GET_SEGMENT (fixP->fx_addsy) != hppa_fixP->segment)
86066d06
JL		 2994 || (fixP->fx_pcrel
2995 && fixP->fx_subsy
fca59f9d 2996 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
753dcbbd 2997 return 1;
8f78d0e9 2998
753dcbbd 2999 /* PLABEL field selectors should not be passed to hppa_field_adjust. */
f2eed884
JL		 3000 if (fmt != 0 && hppa_fixP->fx_r_field != R_HPPA_PSEL
3001 && hppa_fixP->fx_r_field != R_HPPA_LPSEL
9d5a9b20
JL		 3002 && hppa_fixP->fx_r_field != R_HPPA_RPSEL
3003 && hppa_fixP->fx_r_field != R_HPPA_TSEL
3004 && hppa_fixP->fx_r_field != R_HPPA_LTSEL
3005 && hppa_fixP->fx_r_field != R_HPPA_RTSEL)
48153d49
JL		 3006 new_val = hppa_field_adjust (val, 0, hppa_fixP->fx_r_field);
3007 else
3008 new_val = 0;
3009
8f78d0e9
KR		 3010 switch (fmt)
3011 {
3012 /* Handle all opcodes with the 'j' operand type. */
3013 case 14:
48153d49 3014 CHECK_FIELD (new_val, 8191, -8192, 0);
8f78d0e9
KR		 3015
3016 /* Mask off 14 bits to be changed. */
3017 bfd_put_32 (stdoutput,
3018 bfd_get_32 (stdoutput, buf) & 0xffffc000,
3019 buf);
3020 low_sign_unext (new_val, 14, &result);
3021 break;
3022
3023 /* Handle all opcodes with the 'k' operand type. */
3024 case 21:
48153d49 3025 CHECK_FIELD (new_val, 2097152, 0, 0);
8f78d0e9
KR		 3026
3027 /* Mask off 21 bits to be changed. */
3028 bfd_put_32 (stdoutput,
3029 bfd_get_32 (stdoutput, buf) & 0xffe00000,
3030 buf);
3031 dis_assemble_21 (new_val, &result);
3032 break;
3033
3034 /* Handle all the opcodes with the 'i' operand type. */
3035 case 11:
48153d49 3036 CHECK_FIELD (new_val, 1023, -1023, 0);
8f78d0e9
KR		 3037
3038 /* Mask off 11 bits to be changed. */
3039 bfd_put_32 (stdoutput,
3040 bfd_get_32 (stdoutput, buf) & 0xffff800,
3041 buf);
3042 low_sign_unext (new_val, 11, &result);
3043 break;
3044
3045 /* Handle all the opcodes with the 'w' operand type. */
3046 case 12:
48153d49 3047 CHECK_FIELD (new_val, 8191, -8192, 0)
8f78d0e9
KR		 3048
3049 /* Mask off 11 bits to be changed. */
c5e9ccd0 3050 sign_unext ((new_val - 8) >> 2, 12, &result);
8f78d0e9
KR		 3051 bfd_put_32 (stdoutput,
3052 bfd_get_32 (stdoutput, buf) & 0xffffe002,
3053 buf);
3054
3055 dis_assemble_12 (result, &w1, &w);
3056 result = ((w1 << 2) | w);
8f78d0e9
KR		 3057 break;
3058
753dcbbd
JL		 3059 /* Handle some of the opcodes with the 'W' operand type. */
3060 case 17:
3061
8f78d0e9
KR		 3062#define stub_needed(CALLER, CALLEE) \
3063 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
753dcbbd
JL		 3064 /* It is necessary to force PC-relative calls/jumps to have a
3065 relocation entry if they're going to need either a argument
3066 relocation or long call stub. FIXME. Can't we need the same
3067 for absolute calls? */
3068 if (fixP->fx_addsy
3069 && (stub_needed (((obj_symbol_type *)
3070 fixP->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
3071 hppa_fixP->fx_arg_reloc)))
3072 return 1;
3073#undef stub_needed
8f78d0e9 3074
48153d49 3075 CHECK_FIELD (new_val, 262143, -262144, 0);
8f78d0e9
KR		 3076
3077 /* Mask off 17 bits to be changed. */
3078 bfd_put_32 (stdoutput,
3079 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
3080 buf);
3081 sign_unext ((new_val - 8) >> 2, 17, &result);
3082 dis_assemble_17 (result, &w1, &w2, &w);
3083 result = ((w2 << 2) | (w1 << 16) | w);
8f78d0e9
KR		 3084 break;
3085
8f78d0e9 3086 case 32:
aa8b30ed 3087#ifdef OBJ_ELF
ff852e11
JL		 3088 /* These are ELF specific relocations. ELF unfortunately
3089 handles unwinds in a completely different manner. */
8f78d0e9
KR		 3090 if (hppa_fixP->fx_r_type == R_HPPA_UNWIND_ENTRY
3091 || hppa_fixP->fx_r_type == R_HPPA_UNWIND_ENTRIES)
3092 result = fixP->fx_addnumber;
3093 else
aa8b30ed 3094#endif
8f78d0e9
KR		 3095 {
3096 result = 0;
3097 fixP->fx_addnumber = fixP->fx_offset;
551d2fd4
JL		 3098 /* If we have a real relocation, then we want zero to
3099 be stored in the object file. If no relocation is going
3100 to be emitted, then we need to store new_val into the
3101 object file. */
3102 if (fixP->fx_addsy)
3103 bfd_put_32 (stdoutput, 0, buf);
3104 else
3105 bfd_put_32 (stdoutput, new_val, buf);
753dcbbd 3106 return 1;
8f78d0e9
KR		 3107 }
3108 break;
3109
3110 case 0:
753dcbbd 3111 return 1;
8f78d0e9
KR		 3112
3113 default:
48153d49 3114 as_bad ("Unknown relocation encountered in md_apply_fix.");
753dcbbd 3115 return 1;
8f78d0e9
KR		 3116 }
3117
3118 /* Insert the relocation. */
48153d49 3119 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
753dcbbd 3120 return 1;
8f78d0e9 3121 }
025b0302 3122 else
753dcbbd
JL		 3123 {
3124 printf ("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n",
3125 (unsigned int) fixP, fixP->fx_r_type);
3126 return 0;
3127 }
8f78d0e9
KR		 3128}
3129
3130/* Exactly what point is a PC-relative offset relative TO?
3131 On the PA, they're relative to the address of the offset. */
3132
3133long
3134md_pcrel_from (fixP)
3135 fixS *fixP;
3136{
3137 return fixP->fx_where + fixP->fx_frag->fr_address;
3138}
3139
3140/* Return nonzero if the input line pointer is at the end of
3141 a statement. */
3142
3143static int
3144is_end_of_statement ()
3145{
3146 return ((*input_line_pointer == '\n')
3147 || (*input_line_pointer == ';')
3148 || (*input_line_pointer == '!'));
3149}
3150
3151/* Read a number from S. The number might come in one of many forms,
3152 the most common will be a hex or decimal constant, but it could be
3153 a pre-defined register (Yuk!), or an absolute symbol.
3154
3155 Return a number or -1 for failure.
3156
3157 When parsing PA-89 FP register numbers RESULT will be
3158 the address of a structure to return information about
3159 L/R half of FP registers, store results there as appropriate.
3160
3161 pa_parse_number can not handle negative constants and will fail
3162 horribly if it is passed such a constant. */
3163
3164static int
3165pa_parse_number (s, result)
025b0302
ME		 3166 char **s;
3167 struct pa_89_fp_reg_struct *result;
3168{
3169 int num;
3170 char *name;
3171 char c;
3172 symbolS *sym;
3173 int status;
3174 char *p = *s;
3175
8f78d0e9 3176 /* Skip whitespace before the number. */
025b0302
ME		 3177 while (*p == ' ' || *p == '\t')
3178 p = p + 1;
8f78d0e9
KR		 3179
3180 /* Store info in RESULT if requested by caller. */
3181 if (result)
3182 {
3183 result->number_part = -1;
3184 result->l_r_select = -1;
3185 }
3186 num = -1;
025b0302
ME		 3187
3188 if (isdigit (*p))
3189 {
8f78d0e9
KR		 3190 /* Looks like a number. */
3191 num = 0;
025b0302
ME		 3192
3193 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
8f78d0e9
KR		 3194 {
3195 /* The number is specified in hex. */
3196 p += 2;
025b0302
ME		 3197 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
3198 || ((*p >= 'A') && (*p <= 'F')))
3199 {
3200 if (isdigit (*p))
3201 num = num * 16 + *p - '0';
3202 else if (*p >= 'a' && *p <= 'f')
3203 num = num * 16 + *p - 'a' + 10;
3204 else
3205 num = num * 16 + *p - 'A' + 10;
3206 ++p;
3207 }
3208 }
3209 else
3210 {
8f78d0e9 3211 /* The number is specified in decimal. */
025b0302
ME		 3212 while (isdigit (*p))
3213 {
3214 num = num * 10 + *p - '0';
3215 ++p;
3216 }
3217 }
3218
8f78d0e9
KR		 3219 /* Store info in RESULT if requested by the caller. */
3220 if (result)
025b0302 3221 {
8f78d0e9 3222 result->number_part = num;
025b0302 3223
8f78d0e9
KR		 3224 if (IS_R_SELECT (p))
3225 {
3226 result->l_r_select = 1;
3227 ++p;
3228 }
3229 else if (IS_L_SELECT (p))
3230 {
3231 result->l_r_select = 0;
3232 ++p;
3233 }
3234 else
3235 result->l_r_select = 0;
3236 }
025b0302
ME		 3237 }
3238 else if (*p == '%')
8f78d0e9
KR		 3239 {
3240 /* The number might be a predefined register. */
025b0302
ME		 3241 num = 0;
3242 name = p;
3243 p++;
3244 c = *p;
8f78d0e9
KR		 3245 /* Tege hack: Special case for general registers as the general
3246 code makes a binary search with case translation, and is VERY
3247 slow. */
025b0302
ME		 3248 if (c == 'r')
3249 {
3250 p++;
8f78d0e9
KR		 3251 if (*p == 'e' && *(p + 1) == 't'
3252 && (*(p + 2) == '0' || *(p + 2) == '1'))
025b0302
ME		 3253 {
3254 p += 2;
8f78d0e9 3255 num = *p - '0' + 28;
025b0302
ME		 3256 p++;
3257 }
d6e524f3
JL		 3258 else if (*p == 'p')
3259 {
3260 num = 2;
3261 p++;
3262 }
025b0302 3263 else if (!isdigit (*p))
d6e524f3
JL		 3264 {
3265 if (print_errors)
3266 as_bad ("Undefined register: '%s'.", name);
3267 num = -1;
3268 }
025b0302
ME		 3269 else
3270 {
3271 do
3272 num = num * 10 + *p++ - '0';
3273 while (isdigit (*p));
3274 }
3275 }
3276 else
3277 {
8f78d0e9 3278 /* Do a normal register search. */
025b0302
ME		 3279 while (is_part_of_name (c))
3280 {
3281 p = p + 1;
3282 c = *p;
3283 }
3284 *p = 0;
3285 status = reg_name_search (name);
3286 if (status >= 0)
3287 num = status;
3288 else
3289 {
3290 if (print_errors)
d6e524f3
JL		 3291 as_bad ("Undefined register: '%s'.", name);
3292 num = -1;
025b0302
ME		 3293 }
3294 *p = c;
3295 }
3296
8f78d0e9
KR		 3297 /* Store info in RESULT if requested by caller. */
3298 if (result)
3299 {
3300 result->number_part = num;
3301 if (IS_R_SELECT (p - 1))
3302 result->l_r_select = 1;
3303 else if (IS_L_SELECT (p - 1))
3304 result->l_r_select = 0;
3305 else
3306 result->l_r_select = 0;
3307 }
025b0302
ME		 3308 }
3309 else
3310 {
8f78d0e9
KR		 3311 /* And finally, it could be a symbol in the absolute section which
3312 is effectively a constant. */
025b0302
ME		 3313 num = 0;
3314 name = p;
3315 c = *p;
3316 while (is_part_of_name (c))
3317 {
3318 p = p + 1;
3319 c = *p;
3320 }
3321 *p = 0;
3322 if ((sym = symbol_find (name)) != NULL)
3323 {
025b0302 3324 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
8f78d0e9 3325 num = S_GET_VALUE (sym);
025b0302
ME		 3326 else
3327 {
3328 if (print_errors)
d6e524f3
JL		 3329 as_bad ("Non-absolute symbol: '%s'.", name);
3330 num = -1;
025b0302
ME		 3331 }
3332 }
3333 else
3334 {
d6e524f3
JL		 3335 /* There is where we'd come for an undefined symbol
3336 or for an empty string. For an empty string we
3337 will return zero. That's a concession made for
3338 compatability with the braindamaged HP assemblers. */
1cc248d2 3339 if (*name == 0)
d6e524f3 3340 num = 0;
025b0302 3341 else
d6e524f3
JL		 3342 {
3343 if (print_errors)
3344 as_bad ("Undefined absolute constant: '%s'.", name);
3345 num = -1;
3346 }
025b0302
ME		 3347 }
3348 *p = c;
025b0302 3349
8f78d0e9
KR		 3350 /* Store info in RESULT if requested by caller. */
3351 if (result)
3352 {
3353 result->number_part = num;
3354 if (IS_R_SELECT (p - 1))
3355 result->l_r_select = 1;
3356 else if (IS_L_SELECT (p - 1))
3357 result->l_r_select = 0;
3358 else
3359 result->l_r_select = 0;
3360 }
025b0302
ME		 3361 }
3362
3363 *s = p;
3364 return num;
8f78d0e9
KR		 3365}
3366
3367#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3368
3369/* Given NAME, find the register number associated with that name, return
3370 the integer value associated with the given name or -1 on failure. */
3371
3372static int
3373reg_name_search (name)
3374 char *name;
3375{
3376 int middle, low, high;
4047ff1d 3377 int cmp;
8f78d0e9
KR		 3378
3379 low = 0;
3380 high = REG_NAME_CNT - 1;
3381
3382 do
3383 {
3384 middle = (low + high) / 2;
4047ff1d
JL		 3385 cmp = strcasecmp (name, pre_defined_registers[middle].name);
3386 if (cmp < 0)
8f78d0e9 3387 high = middle - 1;
4047ff1d 3388 else if (cmp > 0)
8f78d0e9 3389 low = middle + 1;
4047ff1d
JL		 3390 else
3391 return pre_defined_registers[middle].value;
8f78d0e9 3392 }
4047ff1d 3393 while (low <= high);
8f78d0e9 3394
4047ff1d 3395 return -1;
8f78d0e9
KR		 3396}
3397
3398
3399/* Return nonzero if the given INSN and L/R information will require
3400 a new PA-89 opcode. */
025b0302 3401
8f78d0e9
KR		 3402static int
3403need_89_opcode (insn, result)
3404 struct pa_it *insn;
3405 struct pa_89_fp_reg_struct *result;
3406{
3407 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
3408 return TRUE;
3409 else
3410 return FALSE;
025b0302
ME		 3411}
3412
8f78d0e9
KR		 3413/* Parse a condition for a fcmp instruction. Return the numerical
3414 code associated with the condition. */
c5e9ccd0 3415
8f78d0e9 3416static int
025b0302
ME		 3417pa_parse_fp_cmp_cond (s)
3418 char **s;
3419{
3420 int cond, i;
025b0302
ME		 3421
3422 cond = 0;
3423
3424 for (i = 0; i < 32; i++)
3425 {
8f78d0e9
KR		 3426 if (strncasecmp (*s, fp_cond_map[i].string,
3427 strlen (fp_cond_map[i].string)) == 0)
025b0302 3428 {
8f78d0e9
KR		 3429 cond = fp_cond_map[i].cond;
3430 *s += strlen (fp_cond_map[i].string);
025b0302
ME		 3431 while (**s == ' ' || **s == '\t')
3432 *s = *s + 1;
3433 return cond;
3434 }
3435 }
3436
8f78d0e9 3437 as_bad ("Invalid FP Compare Condition: %c", **s);
025b0302
ME		 3438 return 0;
3439}
3440
8f78d0e9
KR		 3441/* Parse an FP operand format completer returning the completer
3442 type. */
c5e9ccd0 3443
8f78d0e9 3444static fp_operand_format
025b0302
ME		 3445pa_parse_fp_format (s)
3446 char **s;
3447{
8f78d0e9 3448 int format;
025b0302 3449
8f78d0e9 3450 format = SGL;
025b0302
ME		 3451 if (**s == ',')
3452 {
3453 *s += 1;
3454 if (strncasecmp (*s, "sgl", 3) == 0)
3455 {
8f78d0e9 3456 format = SGL;
025b0302
ME		 3457 *s += 4;
3458 }
3459 else if (strncasecmp (*s, "dbl", 3) == 0)
3460 {
8f78d0e9 3461 format = DBL;
025b0302
ME		 3462 *s += 4;
3463 }
3464 else if (strncasecmp (*s, "quad", 4) == 0)
3465 {
8f78d0e9 3466 format = QUAD;
025b0302
ME		 3467 *s += 5;
3468 }
3469 else
3470 {
8f78d0e9
KR		 3471 format = ILLEGAL_FMT;
3472 as_bad ("Invalid FP Operand Format: %3s", *s);
025b0302
ME		 3473 }
3474 }
025b0302 3475
8f78d0e9 3476 return format;
025b0302
ME		 3477}
3478
8f78d0e9
KR		 3479/* Convert from a selector string into a selector type. */
3480
3481static int
025b0302
ME		 3482pa_chk_field_selector (str)
3483 char **str;
3484{
4047ff1d
JL		 3485 int middle, low, high;
3486 int cmp;
3487 char name[3];
025b0302 3488
8f78d0e9 3489 /* Read past any whitespace. */
4047ff1d 3490 /* FIXME: should we read past newlines and formfeeds??? */
025b0302 3491 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
8f78d0e9
KR		 3492 *str = *str + 1;
3493
4047ff1d
JL		 3494 if ((*str)[1] == '\'' || (*str)[1] == '%')
3495 name[0] = tolower ((*str)[0]),
3496 name[1] = 0;
3497 else if ((*str)[2] == '\'' || (*str)[2] == '%')
3498 name[0] = tolower ((*str)[0]),
3499 name[1] = tolower ((*str)[1]),
3500 name[2] = 0;
3501 else
3502 return e_fsel;
3503
3504 low = 0;
3505 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
3506
3507 do
025b0302 3508 {
4047ff1d
JL		 3509 middle = (low + high) / 2;
3510 cmp = strcmp (name, selector_table[middle].prefix);
3511 if (cmp < 0)
3512 high = middle - 1;
3513 else if (cmp > 0)
3514 low = middle + 1;
3515 else
025b0302 3516 {
4047ff1d
JL		 3517 *str += strlen (name) + 1;
3518 return selector_table[middle].field_selector;
025b0302
ME		 3519 }
3520 }
4047ff1d
JL		 3521 while (low <= high);
3522
3523 return e_fsel;
025b0302
ME		 3524}
3525
c5e9ccd0 3526/* Mark (via expr_end) the end of an expression (I think). FIXME. */
025b0302 3527
8f78d0e9
KR		 3528static int
3529get_expression (str)
025b0302
ME		 3530 char *str;
3531{
3532 char *save_in;
8f78d0e9 3533 asection *seg;
025b0302
ME		 3534
3535 save_in = input_line_pointer;
3536 input_line_pointer = str;
5cf4cd1b
KR		 3537 seg = expression (&the_insn.exp);
3538 if (!(seg == absolute_section
3539 || seg == undefined_section
3540 || SEG_NORMAL (seg)))
025b0302 3541 {
c5e9ccd0 3542 as_warn ("Bad segment in expression.");
025b0302
ME		 3543 expr_end = input_line_pointer;
3544 input_line_pointer = save_in;
3545 return 1;
3546 }
3547 expr_end = input_line_pointer;
3548 input_line_pointer = save_in;
3549 return 0;
3550}
3551
8f78d0e9
KR		 3552/* Mark (via expr_end) the end of an absolute expression. FIXME. */
3553static int
48153d49
JL		 3554pa_get_absolute_expression (insn, strp)
3555 struct pa_it *insn;
3556 char **strp;
025b0302
ME		 3557{
3558 char *save_in;
025b0302 3559
48153d49 3560 insn->field_selector = pa_chk_field_selector (strp);
025b0302 3561 save_in = input_line_pointer;
48153d49
JL		 3562 input_line_pointer = *strp;
3563 expression (&insn->exp);
3564 if (insn->exp.X_op != O_constant)
025b0302 3565 {
48153d49 3566 as_bad ("Bad segment (should be absolute).");
025b0302
ME		 3567 expr_end = input_line_pointer;
3568 input_line_pointer = save_in;
48153d49 3569 return 0;
025b0302
ME		 3570 }
3571 expr_end = input_line_pointer;
3572 input_line_pointer = save_in;
48153d49 3573 return evaluate_absolute (insn);
025b0302
ME		 3574}
3575
8f78d0e9
KR		 3576/* Evaluate an absolute expression EXP which may be modified by
3577 the selector FIELD_SELECTOR. Return the value of the expression. */
3578static int
48153d49
JL		 3579evaluate_absolute (insn)
3580 struct pa_it *insn;
025b0302
ME		 3581{
3582 int value;
f41f3d72 3583 expressionS exp;
48153d49 3584 int field_selector = insn->field_selector;
025b0302 3585
f41f3d72 3586 exp = insn->exp;
025b0302
ME		 3587 value = exp.X_add_number;
3588
025b0302
ME		 3589 switch (field_selector)
3590 {
8f78d0e9
KR		 3591 /* No change. */
3592 case e_fsel:
025b0302
ME		 3593 break;
3594
8f78d0e9
KR		 3595 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3596 case e_lssel:
025b0302
ME		 3597 if (value & 0x00000400)
3598 value += 0x800;
3599 value = (value & 0xfffff800) >> 11;
3600 break;
3601
8f78d0e9
KR		 3602 /* Sign extend from bit 21. */
3603 case e_rssel:
025b0302
ME		 3604 if (value & 0x00000400)
3605 value |= 0xfffff800;
3606 else
3607 value &= 0x7ff;
3608 break;
3609
8f78d0e9
KR		 3610 /* Arithmetic shift right 11 bits. */
3611 case e_lsel:
025b0302
ME		 3612 value = (value & 0xfffff800) >> 11;
3613 break;
3614
8f78d0e9
KR		 3615 /* Set bits 0-20 to zero. */
3616 case e_rsel:
025b0302
ME		 3617 value = value & 0x7ff;
3618 break;
3619
8f78d0e9
KR		 3620 /* Add 0x800 and arithmetic shift right 11 bits. */
3621 case e_ldsel:
025b0302 3622 value += 0x800;
025b0302
ME		 3623 value = (value & 0xfffff800) >> 11;
3624 break;
3625
8f78d0e9
KR		 3626 /* Set bitgs 0-21 to one. */
3627 case e_rdsel:
3628 value |= 0xfffff800;
025b0302
ME		 3629 break;
3630
7b624bf2 3631#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
8f78d0e9 3632 case e_rrsel:
7b624bf2
JL		 3633 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
3634 break;
3635
8f78d0e9 3636 case e_lrsel:
7b624bf2
JL		 3637 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
3638 break;
3639#undef RSEL_ROUND
8f78d0e9 3640
025b0302
ME		 3641 default:
3642 BAD_CASE (field_selector);
3643 break;
3644 }
3645 return value;
3646}
3647
8f78d0e9
KR		 3648/* Given an argument location specification return the associated
3649 argument location number. */
3650
3651static unsigned int
025b0302
ME		 3652pa_build_arg_reloc (type_name)
3653 char *type_name;
3654{
3655
3656 if (strncasecmp (type_name, "no", 2) == 0)
8f78d0e9 3657 return 0;
025b0302 3658 if (strncasecmp (type_name, "gr", 2) == 0)
8f78d0e9 3659 return 1;
025b0302 3660 else if (strncasecmp (type_name, "fr", 2) == 0)
8f78d0e9 3661 return 2;
025b0302 3662 else if (strncasecmp (type_name, "fu", 2) == 0)
8f78d0e9 3663 return 3;
025b0302 3664 else
8f78d0e9 3665 as_bad ("Invalid argument location: %s\n", type_name);
025b0302
ME		 3666
3667 return 0;
3668}
3669
8f78d0e9
KR		 3670/* Encode and return an argument relocation specification for
3671 the given register in the location specified by arg_reloc. */
3672
3673static unsigned int
025b0302
ME		 3674pa_align_arg_reloc (reg, arg_reloc)
3675 unsigned int reg;
3676 unsigned int arg_reloc;
3677{
3678 unsigned int new_reloc;
3679
3680 new_reloc = arg_reloc;
3681 switch (reg)
3682 {
3683 case 0:
3684 new_reloc <<= 8;
3685 break;
3686 case 1:
3687 new_reloc <<= 6;
3688 break;
3689 case 2:
3690 new_reloc <<= 4;
3691 break;
3692 case 3:
3693 new_reloc <<= 2;
3694 break;
3695 default:
8f78d0e9 3696 as_bad ("Invalid argument description: %d", reg);
025b0302
ME		 3697 }
3698
3699 return new_reloc;
3700}
3701
8f78d0e9
KR		 3702/* Parse a PA nullification completer (,n). Return nonzero if the
3703 completer was found; return zero if no completer was found. */
3704
3705static int
025b0302
ME		 3706pa_parse_nullif (s)
3707 char **s;
3708{
3709 int nullif;
3710
3711 nullif = 0;
3712 if (**s == ',')
3713 {
3714 *s = *s + 1;
3715 if (strncasecmp (*s, "n", 1) == 0)
3716 nullif = 1;
3717 else
3718 {
8f78d0e9 3719 as_bad ("Invalid Nullification: (%c)", **s);
025b0302
ME		 3720 nullif = 0;
3721 }
3722 *s = *s + 1;
3723 }
025b0302
ME		 3724
3725 return nullif;
3726}
3727
8f78d0e9
KR		 3728/* Parse a non-negated compare/subtract completer returning the
3729 number (for encoding in instrutions) of the given completer.
3730
3731 ISBRANCH specifies whether or not this is parsing a condition
3732 completer for a branch (vs a nullification completer for a
3733 computational instruction. */
3734
3735static int
5cf4cd1b 3736pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
025b0302 3737 char **s;
5cf4cd1b 3738 int isbranch;
025b0302
ME		 3739{
3740 int cmpltr;
5cf4cd1b 3741 char *name = *s + 1;
025b0302 3742 char c;
5cf4cd1b 3743 char *save_s = *s;
025b0302 3744
5cf4cd1b 3745 cmpltr = 0;
025b0302
ME		 3746 if (**s == ',')
3747 {
3748 *s += 1;
025b0302
ME		 3749 while (**s != ',' && **s != ' ' && **s != '\t')
3750 *s += 1;
3751 c = **s;
3752 **s = 0x00;
3753 if (strcmp (name, "=") == 0)
3754 {
3755 cmpltr = 1;
3756 }
3757 else if (strcmp (name, "<") == 0)
3758 {
3759 cmpltr = 2;
3760 }
3761 else if (strcmp (name, "<=") == 0)
3762 {
3763 cmpltr = 3;
3764 }
3765 else if (strcmp (name, "<<") == 0)
3766 {
3767 cmpltr = 4;
3768 }
3769 else if (strcmp (name, "<<=") == 0)
3770 {
3771 cmpltr = 5;
3772 }
3773 else if (strcasecmp (name, "sv") == 0)
3774 {
3775 cmpltr = 6;
3776 }
3777 else if (strcasecmp (name, "od") == 0)
3778 {
3779 cmpltr = 7;
3780 }
5cf4cd1b 3781 /* If we have something like addb,n then there is no condition
8f78d0e9 3782 completer. */
5cf4cd1b 3783 else if (strcasecmp (name, "n") == 0 && isbranch)
025b0302 3784 {
5cf4cd1b 3785 cmpltr = 0;
025b0302 3786 }
8f78d0e9 3787 else
025b0302 3788 {
5cf4cd1b 3789 cmpltr = -1;
025b0302 3790 }
025b0302
ME		 3791 **s = c;
3792 }
025b0302 3793
5cf4cd1b
KR		 3794 /* Reset pointers if this was really a ,n for a branch instruction. */
3795 if (cmpltr == 0 && *name == 'n' && isbranch)
3796 *s = save_s;
3797
025b0302
ME		 3798 return cmpltr;
3799}
3800
8f78d0e9
KR		 3801/* Parse a negated compare/subtract completer returning the
3802 number (for encoding in instrutions) of the given completer.
3803
3804 ISBRANCH specifies whether or not this is parsing a condition
3805 completer for a branch (vs a nullification completer for a
3806 computational instruction. */
3807
3808static int
5cf4cd1b 3809pa_parse_neg_cmpsub_cmpltr (s, isbranch)
025b0302 3810 char **s;
5cf4cd1b 3811 int isbranch;
025b0302
ME		 3812{
3813 int cmpltr;
5cf4cd1b 3814 char *name = *s + 1;
025b0302 3815 char c;
5cf4cd1b 3816 char *save_s = *s;
025b0302 3817
5cf4cd1b 3818 cmpltr = 0;
025b0302
ME		 3819 if (**s == ',')
3820 {
3821 *s += 1;
025b0302
ME		 3822 while (**s != ',' && **s != ' ' && **s != '\t')
3823 *s += 1;
3824 c = **s;
3825 **s = 0x00;
3826 if (strcasecmp (name, "tr") == 0)
3827 {
3828 cmpltr = 0;
3829 }
3830 else if (strcmp (name, "<>") == 0)
3831 {
3832 cmpltr = 1;
3833 }
3834 else if (strcmp (name, ">=") == 0)
3835 {
3836 cmpltr = 2;
3837 }
3838 else if (strcmp (name, ">") == 0)
3839 {
3840 cmpltr = 3;
3841 }
3842 else if (strcmp (name, ">>=") == 0)
3843 {
3844 cmpltr = 4;
3845 }
3846 else if (strcmp (name, ">>") == 0)
3847 {
3848 cmpltr = 5;
3849 }
3850 else if (strcasecmp (name, "nsv") == 0)
3851 {
3852 cmpltr = 6;
3853 }
3854 else if (strcasecmp (name, "ev") == 0)
3855 {
3856 cmpltr = 7;
3857 }
5cf4cd1b 3858 /* If we have something like addb,n then there is no condition
8f78d0e9 3859 completer. */
5cf4cd1b
KR		 3860 else if (strcasecmp (name, "n") == 0 && isbranch)
3861 {
3862 cmpltr = 0;
3863 }
3864 else
3865 {
3866 cmpltr = -1;
3867 }
025b0302
ME		 3868 **s = c;
3869 }
025b0302 3870
5cf4cd1b
KR		 3871 /* Reset pointers if this was really a ,n for a branch instruction. */
3872 if (cmpltr == 0 && *name == 'n' && isbranch)
3873 *s = save_s;
3874
025b0302
ME		 3875 return cmpltr;
3876}
3877
8f78d0e9
KR		 3878/* Parse a non-negated addition completer returning the number
3879 (for encoding in instrutions) of the given completer.
3880
3881 ISBRANCH specifies whether or not this is parsing a condition
3882 completer for a branch (vs a nullification completer for a
3883 computational instruction. */
3884
3885static int
5cf4cd1b 3886pa_parse_nonneg_add_cmpltr (s, isbranch)
025b0302 3887 char **s;
5cf4cd1b 3888 int isbranch;
025b0302
ME		 3889{
3890 int cmpltr;
5cf4cd1b 3891 char *name = *s + 1;
025b0302 3892 char c;
5cf4cd1b 3893 char *save_s = *s;
025b0302 3894
5cf4cd1b 3895 cmpltr = 0;
025b0302
ME		 3896 if (**s == ',')
3897 {
3898 *s += 1;
025b0302
ME		 3899 while (**s != ',' && **s != ' ' && **s != '\t')
3900 *s += 1;
3901 c = **s;
3902 **s = 0x00;
3903 if (strcmp (name, "=") == 0)
3904 {
3905 cmpltr = 1;
3906 }
3907 else if (strcmp (name, "<") == 0)
3908 {
3909 cmpltr = 2;
3910 }
3911 else if (strcmp (name, "<=") == 0)
3912 {
3913 cmpltr = 3;
3914 }
3915 else if (strcasecmp (name, "nuv") == 0)
3916 {
3917 cmpltr = 4;
3918 }
3919 else if (strcasecmp (name, "znv") == 0)
3920 {
3921 cmpltr = 5;
3922 }
3923 else if (strcasecmp (name, "sv") == 0)
3924 {
3925 cmpltr = 6;
3926 }
3927 else if (strcasecmp (name, "od") == 0)
3928 {
3929 cmpltr = 7;
3930 }
5cf4cd1b 3931 /* If we have something like addb,n then there is no condition
8f78d0e9 3932 completer. */
5cf4cd1b
KR		 3933 else if (strcasecmp (name, "n") == 0 && isbranch)
3934 {
3935 cmpltr = 0;
3936 }
3937 else
3938 {
3939 cmpltr = -1;
3940 }
025b0302
ME		 3941 **s = c;
3942 }
025b0302 3943
5cf4cd1b
KR		 3944 /* Reset pointers if this was really a ,n for a branch instruction. */
3945 if (cmpltr == 0 && *name == 'n' && isbranch)
3946 *s = save_s;
3947
025b0302
ME		 3948 return cmpltr;
3949}
3950
8f78d0e9
KR		 3951/* Parse a negated addition completer returning the number
3952 (for encoding in instrutions) of the given completer.
3953
3954 ISBRANCH specifies whether or not this is parsing a condition
3955 completer for a branch (vs a nullification completer for a
3956 computational instruction. */
3957
3958static int
5cf4cd1b 3959pa_parse_neg_add_cmpltr (s, isbranch)
025b0302 3960 char **s;
5cf4cd1b 3961 int isbranch;
025b0302
ME		 3962{
3963 int cmpltr;
5cf4cd1b 3964 char *name = *s + 1;
025b0302 3965 char c;
5cf4cd1b 3966 char *save_s = *s;
025b0302 3967
5cf4cd1b 3968 cmpltr = 0;
025b0302
ME		 3969 if (**s == ',')
3970 {
3971 *s += 1;
025b0302
ME		 3972 while (**s != ',' && **s != ' ' && **s != '\t')
3973 *s += 1;
3974 c = **s;
3975 **s = 0x00;
3976 if (strcasecmp (name, "tr") == 0)
3977 {
3978 cmpltr = 0;
3979 }
3980 else if (strcmp (name, "<>") == 0)
3981 {
3982 cmpltr = 1;
3983 }
3984 else if (strcmp (name, ">=") == 0)
3985 {
3986 cmpltr = 2;
3987 }
3988 else if (strcmp (name, ">") == 0)
3989 {
3990 cmpltr = 3;
3991 }
4047ff1d 3992 else if (strcasecmp (name, "uv") == 0)
025b0302
ME		 3993 {
3994 cmpltr = 4;
3995 }
4047ff1d 3996 else if (strcasecmp (name, "vnz") == 0)
025b0302
ME		 3997 {
3998 cmpltr = 5;
3999 }
4000 else if (strcasecmp (name, "nsv") == 0)
4001 {
4002 cmpltr = 6;
4003 }
4004 else if (strcasecmp (name, "ev") == 0)
4005 {
4006 cmpltr = 7;
4007 }
5cf4cd1b 4008 /* If we have something like addb,n then there is no condition
8f78d0e9 4009 completer. */
5cf4cd1b
KR		 4010 else if (strcasecmp (name, "n") == 0 && isbranch)
4011 {
4012 cmpltr = 0;
4013 }
4014 else
4015 {
4016 cmpltr = -1;
4017 }
025b0302
ME		 4018 **s = c;
4019 }
025b0302 4020
5cf4cd1b
KR		 4021 /* Reset pointers if this was really a ,n for a branch instruction. */
4022 if (cmpltr == 0 && *name == 'n' && isbranch)
4023 *s = save_s;
4024
025b0302
ME		 4025 return cmpltr;
4026}
4027
8f78d0e9 4028/* Handle a .BLOCK type pseudo-op. */
025b0302 4029
8f78d0e9 4030static void
025b0302
ME		 4031pa_block (z)
4032 int z;
4033{
8f78d0e9
KR		 4034 char *p;
4035 long int temp_fill;
4036 unsigned int temp_size;
4037 int i;
025b0302
ME		 4038
4039 temp_size = get_absolute_expression ();
4040
8f78d0e9
KR		 4041 /* Always fill with zeros, that's what the HP assembler does. */
4042 temp_fill = 0;
025b0302 4043
c5e9ccd0 4044 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
8f78d0e9
KR		 4045 (relax_substateT) 0, (symbolS *) 0, 1, NULL);
4046 bzero (p, temp_size);
025b0302 4047
8f78d0e9 4048 /* Convert 2 bytes at a time. */
025b0302
ME		 4049
4050 for (i = 0; i < temp_size; i += 2)
4051 {
4052 md_number_to_chars (p + i,
8f78d0e9 4053 (valueT) temp_fill,
025b0302
ME		 4054 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
4055 }
4056
4057 pa_undefine_label ();
4058 demand_empty_rest_of_line ();
025b0302
ME		 4059}
4060
8f78d0e9
KR		 4061/* Handle a .CALL pseudo-op. This involves storing away information
4062 about where arguments are to be found so the linker can detect
4063 (and correct) argument location mismatches between caller and callee. */
025b0302 4064
8f78d0e9
KR		 4065static void
4066pa_call (unused)
4067 int unused;
4068{
025b0302
ME		 4069 pa_call_args (&last_call_desc);
4070 demand_empty_rest_of_line ();
025b0302
ME		 4071}
4072
8f78d0e9
KR		 4073/* Do the dirty work of building a call descriptor which describes
4074 where the caller placed arguments to a function call. */
4075
4076static void
025b0302 4077pa_call_args (call_desc)
8f78d0e9 4078 struct call_desc *call_desc;
025b0302 4079{
8f78d0e9
KR		 4080 char *name, c, *p;
4081 unsigned int temp, arg_reloc;
025b0302
ME		 4082
4083 while (!is_end_of_statement ())
4084 {
4085 name = input_line_pointer;
4086 c = get_symbol_end ();
8f78d0e9 4087 /* Process a source argument. */
025b0302
ME		 4088 if ((strncasecmp (name, "argw", 4) == 0))
4089 {
4090 temp = atoi (name + 4);
4091 p = input_line_pointer;
4092 *p = c;
4093 input_line_pointer++;
4094 name = input_line_pointer;
4095 c = get_symbol_end ();
4096 arg_reloc = pa_build_arg_reloc (name);
4097 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
4098 }
8f78d0e9 4099 /* Process a return value. */
025b0302
ME		 4100 else if ((strncasecmp (name, "rtnval", 6) == 0))
4101 {
4102 p = input_line_pointer;
4103 *p = c;
4104 input_line_pointer++;
4105 name = input_line_pointer;
4106 c = get_symbol_end ();
4107 arg_reloc = pa_build_arg_reloc (name);
4108 call_desc->arg_reloc |= (arg_reloc & 0x3);
4109 }
4110 else
4111 {
8f78d0e9 4112 as_bad ("Invalid .CALL argument: %s", name);
025b0302
ME		 4113 }
4114 p = input_line_pointer;
4115 *p = c;
4116 if (!is_end_of_statement ())
4117 input_line_pointer++;
4118 }
4119}
4120
8f78d0e9
KR		 4121/* Return TRUE if FRAG1 and FRAG2 are the same. */
4122
025b0302 4123static int
8f78d0e9
KR		 4124is_same_frag (frag1, frag2)
4125 fragS *frag1;
4126 fragS *frag2;
025b0302
ME		 4127{
4128
8f78d0e9 4129 if (frag1 == NULL)
025b0302 4130 return (FALSE);
8f78d0e9 4131 else if (frag2 == NULL)
025b0302 4132 return (FALSE);
8f78d0e9 4133 else if (frag1 == frag2)
025b0302 4134 return (TRUE);
8f78d0e9
KR		 4135 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
4136 return (is_same_frag (frag1, frag2->fr_next));
025b0302
ME		 4137 else
4138 return (FALSE);
4139}
4140
ff852e11
JL		 4141#ifdef OBJ_ELF
4142/* Build an entry in the UNWIND subspace from the given function
4143 attributes in CALL_INFO. This is not needed for SOM as using
4144 R_ENTRY and R_EXIT relocations allow the linker to handle building
4145 of the unwind spaces. */
c5e9ccd0 4146
025b0302
ME		 4147static void
4148pa_build_unwind_subspace (call_info)
8f78d0e9 4149 struct call_info *call_info;
025b0302 4150{
8f78d0e9
KR		 4151 char *unwind;
4152 asection *seg, *save_seg;
025b0302
ME		 4153 subsegT subseg, save_subseg;
4154 int i;
8f78d0e9
KR		 4155 char c, *p;
4156
4157 /* Get into the right seg/subseg. This may involve creating
4158 the seg the first time through. Make sure to have the
4159 old seg/subseg so that we can reset things when we are done. */
4160 subseg = SUBSEG_UNWIND;
4161 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
4162 if (seg == ASEC_NULL)
025b0302 4163 {
8f78d0e9
KR		 4164 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
4165 bfd_set_section_flags (stdoutput, seg,
4166 SEC_READONLY | SEC_HAS_CONTENTS
4167 | SEC_LOAD | SEC_RELOC);
025b0302
ME		 4168 }
4169
025b0302
ME		 4170 save_seg = now_seg;
4171 save_subseg = now_subseg;
80aab579 4172 subseg_set (seg, subseg);
025b0302 4173
8f78d0e9
KR		 4174
4175 /* Get some space to hold relocation information for the unwind
4176 descriptor. */
025b0302 4177 p = frag_more (4);
025b0302 4178
8f78d0e9 4179 /* Relocation info. for start offset of the function. */
8f78d0e9
KR		 4180 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4181 call_info->start_symbol, (offsetT) 0,
4182 (expressionS *) NULL, 0, R_HPPA_UNWIND, e_fsel, 32, 0,
4183 (char *) 0);
025b0302 4184
025b0302 4185 p = frag_more (4);
025b0302 4186
8f78d0e9 4187 /* Relocation info. for end offset of the function. */
8f78d0e9
KR		 4188 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4189 call_info->end_symbol, (offsetT) 0,
4190 (expressionS *) NULL, 0, R_HPPA_UNWIND, e_fsel, 32, 0,
4191 (char *) 0);
025b0302 4192
8f78d0e9
KR		 4193 /* Dump it. */
4194 unwind = (char *) &call_info->ci_unwind;
4195 for (i = 8; i < sizeof (struct unwind_table); i++)
025b0302 4196 {
8f78d0e9 4197 c = *(unwind + i);
025b0302
ME		 4198 {
4199 FRAG_APPEND_1_CHAR (c);
4200 }
4201 }
4202
8f78d0e9 4203 /* Return back to the original segment/subsegment. */
80aab579 4204 subseg_set (save_seg, save_subseg);
025b0302 4205}
ff852e11 4206#endif
025b0302 4207
8f78d0e9
KR		 4208/* Process a .CALLINFO pseudo-op. This information is used later
4209 to build unwind descriptors and maybe one day to support
4210 .ENTER and .LEAVE. */
025b0302 4211
8f78d0e9
KR		 4212static void
4213pa_callinfo (unused)
4214 int unused;
025b0302 4215{
8f78d0e9
KR		 4216 char *name, c, *p;
4217 int temp;
025b0302 4218
8f78d0e9 4219 /* .CALLINFO must appear within a procedure definition. */
025b0302
ME		 4220 if (!within_procedure)
4221 as_bad (".callinfo is not within a procedure definition");
4222
8f78d0e9
KR		 4223 /* Mark the fact that we found the .CALLINFO for the
4224 current procedure. */
025b0302
ME		 4225 callinfo_found = TRUE;
4226
8f78d0e9 4227 /* Iterate over the .CALLINFO arguments. */
025b0302
ME		 4228 while (!is_end_of_statement ())
4229 {
4230 name = input_line_pointer;
4231 c = get_symbol_end ();
8f78d0e9 4232 /* Frame size specification. */
025b0302
ME		 4233 if ((strncasecmp (name, "frame", 5) == 0))
4234 {
4235 p = input_line_pointer;
4236 *p = c;
4237 input_line_pointer++;
4238 temp = get_absolute_expression ();
4239 if ((temp & 0x3) != 0)
4240 {
4241 as_bad ("FRAME parameter must be a multiple of 8: %d\n", temp);
4242 temp = 0;
4243 }
49fc68a1 4244
c5e9ccd0 4245 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
49fc68a1
JL		 4246 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
4247
025b0302 4248 }
8f78d0e9 4249 /* Entry register (GR, GR and SR) specifications. */
025b0302
ME		 4250 else if ((strncasecmp (name, "entry_gr", 8) == 0))
4251 {
4252 p = input_line_pointer;
4253 *p = c;
4254 input_line_pointer++;
4255 temp = get_absolute_expression ();
aa8b30ed
JL		 4256 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4257 even though %r19 is caller saved. I think this is a bug in
4258 the HP assembler, and we are not going to emulate it. */
4259 if (temp < 3 || temp > 18)
4260 as_bad ("Value for ENTRY_GR must be in the range 3..18\n");
4261 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
025b0302
ME		 4262 }
4263 else if ((strncasecmp (name, "entry_fr", 8) == 0))
4264 {
4265 p = input_line_pointer;
4266 *p = c;
4267 input_line_pointer++;
4268 temp = get_absolute_expression ();
aa8b30ed
JL		 4269 /* Similarly the HP assembler takes 31 as the high bound even
4270 though %fr21 is the last callee saved floating point register. */
4271 if (temp < 12 || temp > 21)
4272 as_bad ("Value for ENTRY_FR must be in the range 12..21\n");
4273 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
025b0302
ME		 4274 }
4275 else if ((strncasecmp (name, "entry_sr", 8) == 0))
4276 {
4277 p = input_line_pointer;
4278 *p = c;
4279 input_line_pointer++;
4280 temp = get_absolute_expression ();
aa8b30ed
JL		 4281 if (temp != 3)
4282 as_bad ("Value for ENTRY_SR must be 3\n");
025b0302 4283 }
8f78d0e9 4284 /* Note whether or not this function performs any calls. */
025b0302
ME		 4285 else if ((strncasecmp (name, "calls", 5) == 0) ||
4286 (strncasecmp (name, "caller", 6) == 0))
4287 {
4288 p = input_line_pointer;
4289 *p = c;
025b0302
ME		 4290 }
4291 else if ((strncasecmp (name, "no_calls", 8) == 0))
4292 {
4293 p = input_line_pointer;
4294 *p = c;
025b0302 4295 }
8f78d0e9 4296 /* Should RP be saved into the stack. */
025b0302
ME		 4297 else if ((strncasecmp (name, "save_rp", 7) == 0))
4298 {
4299 p = input_line_pointer;
4300 *p = c;
4301 last_call_info->ci_unwind.descriptor.save_rp = 1;
4302 }
8f78d0e9 4303 /* Likewise for SP. */
025b0302
ME		 4304 else if ((strncasecmp (name, "save_sp", 7) == 0))
4305 {
4306 p = input_line_pointer;
4307 *p = c;
4308 last_call_info->ci_unwind.descriptor.save_sp = 1;
4309 }
8f78d0e9 4310 /* Is this an unwindable procedure. If so mark it so
c5e9ccd0 4311 in the unwind descriptor. */
025b0302
ME		 4312 else if ((strncasecmp (name, "no_unwind", 9) == 0))
4313 {
4314 p = input_line_pointer;
4315 *p = c;
4316 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
4317 }
8f78d0e9 4318 /* Is this an interrupt routine. If so mark it in the
c5e9ccd0 4319 unwind descriptor. */
025b0302
ME		 4320 else if ((strncasecmp (name, "hpux_int", 7) == 0))
4321 {
4322 p = input_line_pointer;
4323 *p = c;
8f78d0e9 4324 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
025b0302
ME		 4325 }
4326 else
4327 {
8f78d0e9 4328 as_bad ("Invalid .CALLINFO argument: %s", name);
025b0302
ME		 4329 }
4330 if (!is_end_of_statement ())
4331 input_line_pointer++;
4332 }
4333
4334 demand_empty_rest_of_line ();
025b0302
ME		 4335}
4336
8f78d0e9
KR		 4337/* Switch into the code subspace. */
4338
4339static void
4340pa_code (unused)
4341 int unused;
025b0302 4342{
8f78d0e9 4343 sd_chain_struct *sdchain;
025b0302 4344
8f78d0e9
KR		 4345 /* First time through it might be necessary to create the
4346 $TEXT$ space. */
025b0302
ME		 4347 if ((sdchain = is_defined_space ("$TEXT$")) == NULL)
4348 {
8f78d0e9
KR		 4349 sdchain = create_new_space (pa_def_spaces[0].name,
4350 pa_def_spaces[0].spnum,
4351 pa_def_spaces[0].loadable,
4352 pa_def_spaces[0].defined,
4353 pa_def_spaces[0].private,
4354 pa_def_spaces[0].sort,
4355 pa_def_spaces[0].segment, 0);
025b0302
ME		 4356 }
4357
4358 SPACE_DEFINED (sdchain) = 1;
80aab579 4359 subseg_set (text_section, SUBSEG_CODE);
025b0302 4360 demand_empty_rest_of_line ();
025b0302
ME		 4361}
4362
8f78d0e9
KR		 4363/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4364 the .comm pseudo-op has the following symtax:
025b0302 4365
8f78d0e9
KR		 4366 <label> .comm <length>
4367
4368 where <label> is optional and is a symbol whose address will be the start of
4369 a block of memory <length> bytes long. <length> must be an absolute
4370 expression. <length> bytes will be allocated in the current space
4371 and subspace. */
4372
4373static void
4374pa_comm (unused)
4375 int unused;
025b0302 4376{
8f78d0e9
KR		 4377 unsigned int size;
4378 symbolS *symbol;
4379 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4380
8f78d0e9
KR		 4381 if (label_symbol)
4382 symbol = label_symbol->lss_label;
025b0302 4383 else
8f78d0e9 4384 symbol = NULL;
025b0302
ME		 4385
4386 SKIP_WHITESPACE ();
8f78d0e9 4387 size = get_absolute_expression ();
025b0302 4388
8f78d0e9 4389 if (symbol)
025b0302 4390 {
d56f45f5 4391 /* It is incorrect to check S_IS_DEFINED at this point as
c5e9ccd0
JL		 4392 the symbol will *always* be defined. FIXME. How to
4393 correctly determine when this label really as been
4394 defined before. */
8f78d0e9 4395 if (S_GET_VALUE (symbol))
025b0302 4396 {
8f78d0e9 4397 if (S_GET_VALUE (symbol) != size)
025b0302 4398 {
8f78d0e9
KR		 4399 as_warn ("Length of .comm \"%s\" is already %d. Not changed.",
4400 S_GET_NAME (symbol), S_GET_VALUE (symbol));
025b0302
ME		 4401 return;
4402 }
4403 }
4404 else
4405 {
8f78d0e9 4406 S_SET_VALUE (symbol, size);
aa8b30ed 4407 S_SET_SEGMENT (symbol, &bfd_und_section);
8f78d0e9 4408 S_SET_EXTERNAL (symbol);
025b0302 4409 }
025b0302 4410 }
025b0302
ME		 4411 demand_empty_rest_of_line ();
4412}
4413
8f78d0e9 4414/* Process a .END pseudo-op. */
025b0302 4415
8f78d0e9
KR		 4416static void
4417pa_end (unused)
4418 int unused;
4419{
025b0302 4420 demand_empty_rest_of_line ();
025b0302
ME		 4421}
4422
c5e9ccd0 4423/* Process a .ENTER pseudo-op. This is not supported. */
8f78d0e9
KR		 4424static void
4425pa_enter (unused)
4426 int unused;
025b0302 4427{
c5e9ccd0 4428 abort ();
025b0302
ME		 4429}
4430
8f78d0e9
KR		 4431/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4432 procesure. */
4433static void
4434pa_entry (unused)
4435 int unused;
025b0302 4436{
025b0302
ME		 4437 if (!within_procedure)
4438 as_bad ("Misplaced .entry. Ignored.");
4439 else
4440 {
4441 if (!callinfo_found)
4442 as_bad ("Missing .callinfo.");
025b0302
ME		 4443 }
4444 demand_empty_rest_of_line ();
4445 within_entry_exit = TRUE;
8f78d0e9 4446
ff852e11
JL		 4447#ifdef OBJ_SOM
4448 /* SOM defers building of unwind descriptors until the link phase.
4449 The assembler is responsible for creating an R_ENTRY relocation
4450 to mark the beginning of a region and hold the unwind bits, and
4451 for creating an R_EXIT relocation to mark the end of the region.
4452
4453 FIXME. ELF should be using the same conventions! The problem
4454 is an unwind requires too much relocation space. Hmmm. Maybe
4455 if we split the unwind bits up between the relocations which
4456 denote the entry and exit points. */
86066d06
JL		 4457 if (last_call_info->start_symbol != NULL)
4458 {
4459 char *where = frag_more (0);
c5e9ccd0 4460
86066d06
JL		 4461 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4462 last_call_info->start_symbol, (offsetT) 0, NULL,
4463 0, R_HPPA_ENTRY, e_fsel, 0, 0,
4464 (char *) &last_call_info->ci_unwind.descriptor);
4465 }
ff852e11 4466#endif
025b0302
ME		 4467}
4468
8f78d0e9
KR		 4469/* Handle a .EQU pseudo-op. */
4470
4471static void
025b0302
ME		 4472pa_equ (reg)
4473 int reg;
4474{
8f78d0e9
KR		 4475 label_symbol_struct *label_symbol = pa_get_label ();
4476 symbolS *symbol;
025b0302 4477
8f78d0e9 4478 if (label_symbol)
025b0302 4479 {
8f78d0e9
KR		 4480 symbol = label_symbol->lss_label;
4481 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
4482 S_SET_SEGMENT (symbol, &bfd_abs_section);
025b0302
ME		 4483 }
4484 else
4485 {
4486 if (reg)
4487 as_bad (".REG must use a label");
4488 else
4489 as_bad (".EQU must use a label");
4490 }
4491
4492 pa_undefine_label ();
4493 demand_empty_rest_of_line ();
025b0302
ME		 4494}
4495
8f78d0e9
KR		 4496/* Helper function. Does processing for the end of a function. This
4497 usually involves creating some relocations or building special
4498 symbols to mark the end of the function. */
4499
4500static void
025b0302
ME		 4501process_exit ()
4502{
4503 char *where;
4504
4505 where = frag_more (0);
aa8b30ed 4506
ff852e11 4507#ifdef OBJ_ELF
44c0de53
JL		 4508 /* Mark the end of the function, stuff away the location of the frag
4509 for the end of the function, and finally call pa_build_unwind_subspace
4510 to add an entry in the unwind table. */
4511 hppa_elf_mark_end_of_function ();
025b0302 4512 pa_build_unwind_subspace (last_call_info);
ff852e11
JL		 4513#else
4514 /* SOM defers building of unwind descriptors until the link phase.
4515 The assembler is responsible for creating an R_ENTRY relocation
4516 to mark the beginning of a region and hold the unwind bits, and
4517 for creating an R_EXIT relocation to mark the end of the region.
4518
4519 FIXME. ELF should be using the same conventions! The problem
4520 is an unwind requires too much relocation space. Hmmm. Maybe
4521 if we split the unwind bits up between the relocations which
4522 denote the entry and exit points. */
4523 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4524 last_call_info->start_symbol, (offsetT) 0,
4525 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0, NULL);
4526#endif
025b0302
ME		 4527}
4528
8f78d0e9 4529/* Process a .EXIT pseudo-op. */
025b0302 4530
8f78d0e9
KR		 4531static void
4532pa_exit (unused)
4533 int unused;
4534{
025b0302
ME		 4535 if (!within_procedure)
4536 as_bad (".EXIT must appear within a procedure");
4537 else
4538 {
4539 if (!callinfo_found)
4540 as_bad ("Missing .callinfo");
4541 else
4542 {
4543 if (!within_entry_exit)
4544 as_bad ("No .ENTRY for this .EXIT");
4545 else
4546 {
4547 within_entry_exit = FALSE;
4548 process_exit ();
4549 }
4550 }
4551 }
4552 demand_empty_rest_of_line ();
025b0302
ME		 4553}
4554
8f78d0e9
KR		 4555/* Process a .EXPORT directive. This makes functions external
4556 and provides information such as argument relocation entries
4557 to callers. */
5cf4cd1b 4558
8f78d0e9
KR		 4559static void
4560pa_export (unused)
4561 int unused;
025b0302 4562{
8f78d0e9
KR		 4563 char *name, c, *p;
4564 symbolS *symbol;
025b0302
ME		 4565
4566 name = input_line_pointer;
4567 c = get_symbol_end ();
8f78d0e9
KR		 4568 /* Make sure the given symbol exists. */
4569 if ((symbol = symbol_find_or_make (name)) == NULL)
025b0302
ME		 4570 {
4571 as_bad ("Cannot define export symbol: %s\n", name);
4572 p = input_line_pointer;
4573 *p = c;
4574 input_line_pointer++;
4575 }
4576 else
4577 {
8f78d0e9
KR		 4578 /* OK. Set the external bits and process argument relocations. */
4579 S_SET_EXTERNAL (symbol);
025b0302
ME		 4580 p = input_line_pointer;
4581 *p = c;
4582 if (!is_end_of_statement ())
4583 {
4584 input_line_pointer++;
48153d49 4585 pa_type_args (symbol, 1);
025b0302
ME		 4586 }
4587 }
4588
4589 demand_empty_rest_of_line ();
025b0302
ME		 4590}
4591
8f78d0e9
KR		 4592/* Helper function to process arguments to a .EXPORT pseudo-op. */
4593
4594static void
48153d49 4595pa_type_args (symbolP, is_export)
8f78d0e9 4596 symbolS *symbolP;
48153d49 4597 int is_export;
025b0302 4598{
8f78d0e9
KR		 4599 char *name, c, *p;
4600 unsigned int temp, arg_reloc;
e75acd68 4601 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
8f78d0e9 4602 obj_symbol_type *symbol = (obj_symbol_type *) symbolP->bsym;
025b0302
ME		 4603
4604 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
48153d49 4605
025b0302
ME		 4606 {
4607 input_line_pointer += 8;
9a182533 4608 symbolP->bsym->flags &= ~BSF_FUNCTION;
025b0302 4609 S_SET_SEGMENT (symbolP, &bfd_abs_section);
e75acd68 4610 type = SYMBOL_TYPE_ABSOLUTE;
025b0302
ME		 4611 }
4612 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
9a182533
JL		 4613 {
4614 input_line_pointer += 4;
a721c80b 4615 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
c5e9ccd0 4616 instead one should be IMPORTing/EXPORTing ENTRY types.
a721c80b 4617
c5e9ccd0
JL		 4618 Complain if one tries to EXPORT a CODE type since that's never
4619 done. Both GCC and HP C still try to IMPORT CODE types, so
4620 silently fix them to be ENTRY types. */
a721c80b 4621 if (symbolP->bsym->flags & BSF_FUNCTION)
48153d49 4622 {
a721c80b
JL		 4623 if (is_export)
4624 as_tsktsk ("Using ENTRY rather than CODE in export directive for %s", symbolP->bsym->name);
4625
48153d49
JL		 4626 symbolP->bsym->flags |= BSF_FUNCTION;
4627 type = SYMBOL_TYPE_ENTRY;
4628 }
4629 else
4630 {
4631 symbolP->bsym->flags &= ~BSF_FUNCTION;
4632 type = SYMBOL_TYPE_CODE;
4633 }
9a182533 4634 }
025b0302 4635 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
9a182533
JL		 4636 {
4637 input_line_pointer += 4;
4638 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4639 type = SYMBOL_TYPE_DATA;
9a182533 4640 }
025b0302
ME		 4641 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
4642 {
4643 input_line_pointer += 5;
025b0302 4644 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4645 type = SYMBOL_TYPE_ENTRY;
025b0302
ME		 4646 }
4647 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
4648 {
4649 input_line_pointer += 9;
9a182533 4650 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4651 type = SYMBOL_TYPE_MILLICODE;
025b0302
ME		 4652 }
4653 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
4654 {
4655 input_line_pointer += 6;
9a182533 4656 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4657 type = SYMBOL_TYPE_PLABEL;
025b0302
ME		 4658 }
4659 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
4660 {
4661 input_line_pointer += 8;
9a182533 4662 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4663 type = SYMBOL_TYPE_PRI_PROG;
025b0302
ME		 4664 }
4665 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
4666 {
4667 input_line_pointer += 8;
9a182533 4668 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4669 type = SYMBOL_TYPE_SEC_PROG;
025b0302
ME		 4670 }
4671
e75acd68
JL		 4672 /* SOM requires much more information about symbol types
4673 than BFD understands. This is how we get this information
4674 to the SOM BFD backend. */
4675#ifdef obj_set_symbol_type
4676 obj_set_symbol_type (symbolP->bsym, (int) type);
4677#endif
4678
8f78d0e9
KR		 4679 /* Now that the type of the exported symbol has been handled,
4680 handle any argument relocation information. */
025b0302
ME		 4681 while (!is_end_of_statement ())
4682 {
4683 if (*input_line_pointer == ',')
4684 input_line_pointer++;
4685 name = input_line_pointer;
4686 c = get_symbol_end ();
8f78d0e9 4687 /* Argument sources. */
025b0302
ME		 4688 if ((strncasecmp (name, "argw", 4) == 0))
4689 {
4690 p = input_line_pointer;
4691 *p = c;
4692 input_line_pointer++;
4693 temp = atoi (name + 4);
4694 name = input_line_pointer;
4695 c = get_symbol_end ();
4696 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
8f78d0e9 4697 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4698 *input_line_pointer = c;
4699 }
8f78d0e9 4700 /* The return value. */
025b0302
ME		 4701 else if ((strncasecmp (name, "rtnval", 6)) == 0)
4702 {
4703 p = input_line_pointer;
4704 *p = c;
4705 input_line_pointer++;
4706 name = input_line_pointer;
4707 c = get_symbol_end ();
4708 arg_reloc = pa_build_arg_reloc (name);
8f78d0e9 4709 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4710 *input_line_pointer = c;
4711 }
8f78d0e9 4712 /* Privelege level. */
025b0302
ME		 4713 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
4714 {
4715 p = input_line_pointer;
4716 *p = c;
4717 input_line_pointer++;
025b0302
ME		 4718 temp = atoi (input_line_pointer);
4719 c = get_symbol_end ();
4720 *input_line_pointer = c;
025b0302
ME		 4721 }
4722 else
4723 {
4724 as_bad ("Undefined .EXPORT/.IMPORT argument (ignored): %s", name);
4725 p = input_line_pointer;
4726 *p = c;
4727 }
4728 if (!is_end_of_statement ())
4729 input_line_pointer++;
4730 }
4731}
4732
8f78d0e9
KR		 4733/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
4734 assembly file must either be defined in the assembly file, or
4735 explicitly IMPORTED from another. */
4736
4737static void
4738pa_import (unused)
4739 int unused;
025b0302 4740{
8f78d0e9
KR		 4741 char *name, c, *p;
4742 symbolS *symbol;
025b0302
ME		 4743
4744 name = input_line_pointer;
4745 c = get_symbol_end ();
025b0302 4746
8f78d0e9 4747 symbol = symbol_find_or_make (name);
025b0302
ME		 4748 p = input_line_pointer;
4749 *p = c;
4750
4751 if (!is_end_of_statement ())
4752 {
4753 input_line_pointer++;
48153d49 4754 pa_type_args (symbol, 0);
025b0302
ME		 4755 }
4756 else
4757 {
47f45d66 4758 /* Sigh. To be compatable with the HP assembler and to help
c5e9ccd0
JL		 4759 poorly written assembly code, we assign a type based on
4760 the the current segment. Note only BSF_FUNCTION really
4761 matters, we do not need to set the full SYMBOL_TYPE_* info here. */
47f45d66
JL		 4762 if (now_seg == text_section)
4763 symbol->bsym->flags |= BSF_FUNCTION;
4764
8f78d0e9
KR		 4765 /* If the section is undefined, then the symbol is undefined
4766 Since this is an import, leave the section undefined. */
4767 S_SET_SEGMENT (symbol, &bfd_und_section);
025b0302
ME		 4768 }
4769
025b0302 4770 demand_empty_rest_of_line ();
025b0302
ME		 4771}
4772
8f78d0e9
KR		 4773/* Handle a .LABEL pseudo-op. */
4774
4775static void
4776pa_label (unused)
4777 int unused;
025b0302 4778{
8f78d0e9 4779 char *name, c, *p;
025b0302
ME		 4780
4781 name = input_line_pointer;
4782 c = get_symbol_end ();
025b0302
ME		 4783
4784 if (strlen (name) > 0)
4785 {
4786 colon (name);
4787 p = input_line_pointer;
4788 *p = c;
4789 }
4790 else
4791 {
4792 as_warn ("Missing label name on .LABEL");
4793 }
4794
4795 if (!is_end_of_statement ())
4796 {
4797 as_warn ("extra .LABEL arguments ignored.");
4798 ignore_rest_of_line ();
4799 }
4800 demand_empty_rest_of_line ();
025b0302
ME		 4801}
4802
8f78d0e9 4803/* Handle a .LEAVE pseudo-op. This is not supported yet. */
025b0302 4804
8f78d0e9
KR		 4805static void
4806pa_leave (unused)
4807 int unused;
4808{
c5e9ccd0 4809 abort ();
025b0302
ME		 4810}
4811
8f78d0e9
KR		 4812/* Handle a .ORIGIN pseudo-op. */
4813
4814static void
4815pa_origin (unused)
4816 int unused;
025b0302 4817{
8f78d0e9 4818 s_org (0);
025b0302 4819 pa_undefine_label ();
025b0302
ME		 4820}
4821
8f78d0e9
KR		 4822/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
4823 is for static functions. FIXME. Should share more code with .EXPORT. */
5cf4cd1b 4824
8f78d0e9
KR		 4825static void
4826pa_param (unused)
4827 int unused;
5cf4cd1b 4828{
8f78d0e9
KR		 4829 char *name, c, *p;
4830 symbolS *symbol;
5cf4cd1b
KR		 4831
4832 name = input_line_pointer;
4833 c = get_symbol_end ();
5cf4cd1b 4834
8f78d0e9 4835 if ((symbol = symbol_find_or_make (name)) == NULL)
5cf4cd1b
KR		 4836 {
4837 as_bad ("Cannot define static symbol: %s\n", name);
4838 p = input_line_pointer;
4839 *p = c;
4840 input_line_pointer++;
4841 }
4842 else
4843 {
8f78d0e9 4844 S_CLEAR_EXTERNAL (symbol);
5cf4cd1b
KR		 4845 p = input_line_pointer;
4846 *p = c;
4847 if (!is_end_of_statement ())
4848 {
4849 input_line_pointer++;
48153d49 4850 pa_type_args (symbol, 0);
5cf4cd1b
KR		 4851 }
4852 }
4853
4854 demand_empty_rest_of_line ();
5cf4cd1b
KR		 4855}
4856
8f78d0e9
KR		 4857/* Handle a .PROC pseudo-op. It is used to mark the beginning
4858 of a procedure from a syntatical point of view. */
4859
4860static void
4861pa_proc (unused)
4862 int unused;
025b0302 4863{
8f78d0e9 4864 struct call_info *call_info;
86066d06 4865 segT seg;
025b0302
ME		 4866
4867 if (within_procedure)
4868 as_fatal ("Nested procedures");
4869
8f78d0e9 4870 /* Reset global variables for new procedure. */
025b0302
ME		 4871 callinfo_found = FALSE;
4872 within_procedure = TRUE;
025b0302 4873
2f156c92
JL		 4874#if 0
4875 Enabling this code creates severe problems with GDB. It appears as if
4876 inserting linker stubs between functions within a single .o makes GDB
4877 blow chunks.
4878
86066d06
JL		 4879 /* Create a new CODE subspace for each procedure if we are not
4880 using space/subspace aliases. */
4881 if (!USE_ALIASES && call_info_root != NULL)
4882 {
4883 /* Force creation of a new $CODE$ subspace; inherit attributes from
4884 the first $CODE$ subspace. */
4885 seg = subseg_force_new ("$CODE$", 0);
4886
4887 /* Now set the flags. */
4888 bfd_set_section_flags (stdoutput, seg,
4889 bfd_get_section_flags (abfd, text_section));
4890
4891 /* Record any alignment request for this section. */
4892 record_alignment (seg,
4893 bfd_get_section_alignment (stdoutput, text_section));
4894
4895 /* Change the "text_section" to be our new $CODE$ subspace. */
4896 text_section = seg;
4897 subseg_set (text_section, 0);
4898
4899#ifdef obj_set_subsection_attributes
4900 /* Need a way to inherit the the access bits, sort key and quadrant
4901 from the first $CODE$ subspace. FIXME. */
4902 obj_set_subsection_attributes (seg, current_space->sd_seg, 0x2c, 24, 0);
4903#endif
4904 }
2f156c92 4905#endif
86066d06 4906
8f78d0e9
KR		 4907 /* Create another call_info structure. */
4908 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
025b0302
ME		 4909
4910 if (!call_info)
4911 as_fatal ("Cannot allocate unwind descriptor\n");
4912
8f78d0e9 4913 bzero (call_info, sizeof (struct call_info));
025b0302
ME		 4914
4915 call_info->ci_next = NULL;
4916
4917 if (call_info_root == NULL)
4918 {
4919 call_info_root = call_info;
4920 last_call_info = call_info;
4921 }
4922 else
4923 {
4924 last_call_info->ci_next = call_info;
4925 last_call_info = call_info;
4926 }
4927
4928 /* set up defaults on call_info structure */
4929
4930 call_info->ci_unwind.descriptor.cannot_unwind = 0;
4931 call_info->ci_unwind.descriptor.region_desc = 1;
8f78d0e9 4932 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
025b0302
ME		 4933
4934 /* If we got a .PROC pseudo-op, we know that the function is defined
8f78d0e9 4935 locally. Make sure it gets into the symbol table. */
025b0302 4936 {
8f78d0e9 4937 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4938
8f78d0e9 4939 if (label_symbol)
025b0302 4940 {
8f78d0e9 4941 if (label_symbol->lss_label)
025b0302 4942 {
8f78d0e9
KR		 4943 last_call_info->start_symbol = label_symbol->lss_label;
4944 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
2f156c92 4945#if 0
86066d06
JL		 4946 if (! USE_ALIASES)
4947 {
4948 /* The label was defined in a different segment. Fix that
4949 along with the value and associated fragment. */
4950 S_SET_SEGMENT (last_call_info->start_symbol, now_seg);
4951 S_SET_VALUE (last_call_info->start_symbol,
4952 ((char*)obstack_next_free (&frags)
4953 - frag_now->fr_literal));
4954 last_call_info->start_symbol->sy_frag = frag_now;
4955 }
2f156c92 4956#endif
025b0302
ME		 4957 }
4958 else
4047ff1d 4959 as_bad ("Missing function name for .PROC (corrupted label chain)");
025b0302
ME		 4960 }
4961 else
4047ff1d 4962 last_call_info->start_symbol = NULL;
025b0302
ME		 4963 }
4964
4965 demand_empty_rest_of_line ();
025b0302
ME		 4966}
4967
8f78d0e9
KR		 4968/* Process the syntatical end of a procedure. Make sure all the
4969 appropriate pseudo-ops were found within the procedure. */
4970
4971static void
4972pa_procend (unused)
4973 int unused;
025b0302
ME		 4974{
4975
4976 if (!within_procedure)
4977 as_bad ("misplaced .procend");
4978
4979 if (!callinfo_found)
4980 as_bad ("Missing .callinfo for this procedure");
4981
4982 if (within_entry_exit)
4983 as_bad ("Missing .EXIT for a .ENTRY");
4984
44c0de53
JL		 4985#ifdef OBJ_ELF
4986 /* ELF needs to mark the end of each function so that it can compute
4987 the size of the function (apparently its needed in the symbol table. */
4988 hppa_elf_mark_end_of_function ();
4989#endif
4990
025b0302
ME		 4991 within_procedure = FALSE;
4992 demand_empty_rest_of_line ();
fca59f9d 4993 pa_undefine_label ();
025b0302
ME		 4994}
4995
8f78d0e9
KR		 4996/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
4997 then create a new space entry to hold the information specified
4998 by the parameters to the .SPACE directive. */
4999
5000static sd_chain_struct *
025b0302
ME		 5001pa_parse_space_stmt (space_name, create_flag)
5002 char *space_name;
5003 int create_flag;
5004{
8f78d0e9
KR		 5005 char *name, *ptemp, c;
5006 char loadable, defined, private, sort;
025b0302 5007 int spnum;
3b9a72c5 5008 asection *seg = NULL;
8f78d0e9 5009 sd_chain_struct *space;
025b0302
ME		 5010
5011 /* load default values */
5012 spnum = 0;
3b9a72c5 5013 sort = 0;
025b0302
ME		 5014 loadable = TRUE;
5015 defined = TRUE;
5016 private = FALSE;
4047ff1d 5017 if (strcmp (space_name, "$TEXT$") == 0)
025b0302 5018 {
0f3b419c
JL		 5019 seg = pa_def_spaces[0].segment;
5020 sort = pa_def_spaces[0].sort;
025b0302 5021 }
4047ff1d 5022 else if (strcmp (space_name, "$PRIVATE$") == 0)
025b0302 5023 {
0f3b419c
JL		 5024 seg = pa_def_spaces[1].segment;
5025 sort = pa_def_spaces[1].sort;
025b0302
ME		 5026 }
5027
5028 if (!is_end_of_statement ())
5029 {
5030 print_errors = FALSE;
5031 ptemp = input_line_pointer + 1;
8f78d0e9
KR		 5032 /* First see if the space was specified as a number rather than
5033 as a name. According to the PA assembly manual the rest of
5034 the line should be ignored. */
5035 if ((spnum = pa_parse_number (&ptemp, 0)) >= 0)
5036 input_line_pointer = ptemp;
025b0302
ME		 5037 else
5038 {
5039 while (!is_end_of_statement ())
5040 {
5041 input_line_pointer++;
5042 name = input_line_pointer;
5043 c = get_symbol_end ();
4047ff1d 5044 if ((strncasecmp (name, "spnum", 5) == 0))
025b0302 5045 {
8f78d0e9 5046 *input_line_pointer = c;
025b0302 5047 input_line_pointer++;
8f78d0e9 5048 spnum = get_absolute_expression ();
025b0302 5049 }
4047ff1d 5050 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302 5051 {
8f78d0e9 5052 *input_line_pointer = c;
025b0302 5053 input_line_pointer++;
8f78d0e9 5054 sort = get_absolute_expression ();
025b0302 5055 }
4047ff1d 5056 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302 5057 {
8f78d0e9 5058 *input_line_pointer = c;
025b0302
ME		 5059 loadable = FALSE;
5060 }
4047ff1d 5061 else if ((strncasecmp (name, "notdefined", 10) == 0))
025b0302 5062 {
8f78d0e9 5063 *input_line_pointer = c;
025b0302
ME		 5064 defined = FALSE;
5065 }
4047ff1d 5066 else if ((strncasecmp (name, "private", 7) == 0))
025b0302 5067 {
8f78d0e9 5068 *input_line_pointer = c;
025b0302
ME		 5069 private = TRUE;
5070 }
5071 else
3515a504
JL		 5072 {
5073 as_bad ("Invalid .SPACE argument");
5074 *input_line_pointer = c;
c5e9ccd0 5075 if (!is_end_of_statement ())
3515a504
JL		 5076 input_line_pointer++;
5077 }
025b0302
ME		 5078 }
5079 }
5080 print_errors = TRUE;
5081 }
8f78d0e9 5082
3b9a72c5
JL		 5083 if (create_flag && seg == NULL)
5084 seg = subseg_new (space_name, 0);
c5e9ccd0 5085
8f78d0e9
KR		 5086 /* If create_flag is nonzero, then create the new space with
5087 the attributes computed above. Else set the values in
5088 an already existing space -- this can only happen for
5089 the first occurence of a built-in space. */
025b0302 5090 if (create_flag)
8f78d0e9
KR		 5091 space = create_new_space (space_name, spnum, loadable, defined,
5092 private, sort, seg, 1);
025b0302 5093 else
8f78d0e9 5094 {
025b0302
ME		 5095 space = is_defined_space (space_name);
5096 SPACE_SPNUM (space) = spnum;
025b0302 5097 SPACE_DEFINED (space) = defined & 1;
8f78d0e9 5098 SPACE_USER_DEFINED (space) = 1;
025b0302
ME		 5099 space->sd_seg = seg;
5100 }
548ea75b
JL		 5101
5102#ifdef obj_set_section_attributes
5103 obj_set_section_attributes (seg, defined, private, sort, spnum);
5104#endif
5105
025b0302
ME		 5106 return space;
5107}
5108
8f78d0e9
KR		 5109/* Handle a .SPACE pseudo-op; this switches the current space to the
5110 given space, creating the new space if necessary. */
5111
5112static void
5113pa_space (unused)
5114 int unused;
025b0302 5115{
aa8b30ed 5116 char *name, c, *space_name, *save_s;
8f78d0e9
KR		 5117 int temp;
5118 sd_chain_struct *sd_chain;
025b0302
ME		 5119
5120 if (within_procedure)
5121 {
5122 as_bad ("Can\'t change spaces within a procedure definition. Ignored");
5123 ignore_rest_of_line ();
5124 }
5125 else
5126 {
8f78d0e9
KR		 5127 /* Check for some of the predefined spaces. FIXME: most of the code
5128 below is repeated several times, can we extract the common parts
5129 and place them into a subroutine or something similar? */
4047ff1d
JL		 5130 /* FIXME Is this (and the next IF stmt) really right?
5131 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5132 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
025b0302
ME		 5133 {
5134 input_line_pointer += 6;
5135 sd_chain = is_defined_space ("$TEXT$");
5136 if (sd_chain == NULL)
5137 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
8f78d0e9 5138 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5139 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
5140
5141 current_space = sd_chain;
80aab579 5142 subseg_set (text_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5143 current_subspace
5144 = pa_subsegment_to_subspace (text_section,
5145 sd_chain->sd_last_subseg);
025b0302
ME		 5146 demand_empty_rest_of_line ();
5147 return;
5148 }
4047ff1d 5149 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
025b0302
ME		 5150 {
5151 input_line_pointer += 9;
5152 sd_chain = is_defined_space ("$PRIVATE$");
5153 if (sd_chain == NULL)
5154 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
8f78d0e9 5155 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5156 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
5157
5158 current_space = sd_chain;
80aab579 5159 subseg_set (data_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5160 current_subspace
5161 = pa_subsegment_to_subspace (data_section,
5162 sd_chain->sd_last_subseg);
025b0302
ME		 5163 demand_empty_rest_of_line ();
5164 return;
5165 }
8f78d0e9
KR		 5166 if (!strncasecmp (input_line_pointer,
5167 GDB_DEBUG_SPACE_NAME,
5168 strlen (GDB_DEBUG_SPACE_NAME)))
025b0302
ME		 5169 {
5170 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
5171 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
5172 if (sd_chain == NULL)
5173 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
8f78d0e9 5174 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5175 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
5176
5177 current_space = sd_chain;
80aab579 5178
5cf4cd1b 5179 {
8f78d0e9
KR		 5180 asection *gdb_section
5181 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
5182
8f78d0e9
KR		 5183 subseg_set (gdb_section, sd_chain->sd_last_subseg);
5184 current_subspace
5185 = pa_subsegment_to_subspace (gdb_section,
5186 sd_chain->sd_last_subseg);
5cf4cd1b 5187 }
025b0302
ME		 5188 demand_empty_rest_of_line ();
5189 return;
5190 }
5191
8f78d0e9 5192 /* It could be a space specified by number. */
aa8b30ed
JL		 5193 print_errors = 0;
5194 save_s = input_line_pointer;
8f78d0e9 5195 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
025b0302
ME		 5196 {
5197 if (sd_chain = pa_find_space_by_number (temp))
5198 {
5199 current_space = sd_chain;
8f78d0e9 5200
80aab579 5201 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5202 current_subspace
5203 = pa_subsegment_to_subspace (sd_chain->sd_seg,
5204 sd_chain->sd_last_subseg);
025b0302
ME		 5205 demand_empty_rest_of_line ();
5206 return;
5207 }
5208 }
5209
8f78d0e9 5210 /* Not a number, attempt to create a new space. */
aa8b30ed
JL		 5211 print_errors = 1;
5212 input_line_pointer = save_s;
025b0302
ME		 5213 name = input_line_pointer;
5214 c = get_symbol_end ();
8f78d0e9 5215 space_name = xmalloc (strlen (name) + 1);
025b0302
ME		 5216 strcpy (space_name, name);
5217 *input_line_pointer = c;
5218
5219 sd_chain = pa_parse_space_stmt (space_name, 1);
5220 current_space = sd_chain;
8f78d0e9 5221
80aab579 5222 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
025b0302
ME		 5223 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
5224 sd_chain->sd_last_subseg);
5225 demand_empty_rest_of_line ();
5226 }
025b0302
ME		 5227}
5228
c5e9ccd0 5229/* Switch to a new space. (I think). FIXME. */
8f78d0e9
KR		 5230
5231static void
5232pa_spnum (unused)
5233 int unused;
025b0302 5234{
8f78d0e9
KR		 5235 char *name;
5236 char c;
5237 char *p;
5238 sd_chain_struct *space;
025b0302
ME		 5239
5240 name = input_line_pointer;
5241 c = get_symbol_end ();
5242 space = is_defined_space (name);
5243 if (space)
5244 {
5245 p = frag_more (4);
025b0302
ME		 5246 md_number_to_chars (p, SPACE_SPNUM (space), 4);
5247 }
5248 else
5249 as_warn ("Undefined space: '%s' Assuming space number = 0.", name);
5250
5251 *input_line_pointer = c;
5252 demand_empty_rest_of_line ();
025b0302
ME		 5253}
5254
8f78d0e9 5255/* If VALUE is an exact power of two between zero and 2^31, then
aa8b30ed 5256 return log2 (VALUE). Else return -1. */
8f78d0e9
KR		 5257
5258static int
aa8b30ed 5259log2 (value)
025b0302
ME		 5260 int value;
5261{
8f78d0e9 5262 int shift = 0;
025b0302 5263
025b0302
ME		 5264 while ((1 << shift) != value && shift < 32)
5265 shift++;
5266
5267 if (shift >= 32)
aa8b30ed 5268 return -1;
8f78d0e9 5269 else
aa8b30ed 5270 return shift;
025b0302
ME		 5271}
5272
3b9a72c5 5273/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
8f78d0e9
KR		 5274 given subspace, creating the new subspace if necessary.
5275
5276 FIXME. Should mirror pa_space more closely, in particular how
5277 they're broken up into subroutines. */
5278
5279static void
5280pa_subspace (unused)
5281 int unused;
025b0302 5282{
3b9a72c5 5283 char *name, *ss_name, *alias, c;
8f78d0e9 5284 char loadable, code_only, common, dup_common, zero, sort;
3b9a72c5 5285 int i, access, space_index, alignment, quadrant, applicable, flags;
8f78d0e9
KR		 5286 sd_chain_struct *space;
5287 ssd_chain_struct *ssd;
3b9a72c5 5288 asection *section;
025b0302
ME		 5289
5290 if (within_procedure)
5291 {
5292 as_bad ("Can\'t change subspaces within a procedure definition. Ignored");
5293 ignore_rest_of_line ();
5294 }
5295 else
5296 {
5297 name = input_line_pointer;
5298 c = get_symbol_end ();
025b0302
ME		 5299 ss_name = xmalloc (strlen (name) + 1);
5300 strcpy (ss_name, name);
025b0302
ME		 5301 *input_line_pointer = c;
5302
8f78d0e9 5303 /* Load default values. */
025b0302
ME		 5304 sort = 0;
5305 access = 0x7f;
5306 loadable = 1;
5307 common = 0;
5308 dup_common = 0;
5309 code_only = 0;
5310 zero = 0;
8f78d0e9
KR		 5311 space_index = ~0;
5312 alignment = 0;
025b0302 5313 quadrant = 0;
3b9a72c5 5314 alias = NULL;
025b0302 5315
3b9a72c5 5316 space = current_space;
47f45d66
JL		 5317 ssd = is_defined_subspace (ss_name);
5318 /* Allow user to override the builtin attributes of subspaces. But
c5e9ccd0 5319 only allow the attributes to be changed once! */
47f45d66 5320 if (ssd && SUBSPACE_DEFINED (ssd))
025b0302 5321 {
8f78d0e9
KR		 5322 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
5323 if (!is_end_of_statement ())
5324 as_warn ("Parameters of an existing subspace can\'t be modified");
5325 demand_empty_rest_of_line ();
5326 return;
025b0302
ME		 5327 }
5328 else
5329 {
3b9a72c5
JL		 5330 /* A new subspace. Load default values if it matches one of
5331 the builtin subspaces. */
025b0302
ME		 5332 i = 0;
5333 while (pa_def_subspaces[i].name)
5334 {
5335 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
5336 {
5337 loadable = pa_def_subspaces[i].loadable;
5338 common = pa_def_subspaces[i].common;
5339 dup_common = pa_def_subspaces[i].dup_common;
5340 code_only = pa_def_subspaces[i].code_only;
5341 zero = pa_def_subspaces[i].zero;
5342 space_index = pa_def_subspaces[i].space_index;
8f78d0e9 5343 alignment = pa_def_subspaces[i].alignment;
025b0302
ME		 5344 quadrant = pa_def_subspaces[i].quadrant;
5345 access = pa_def_subspaces[i].access;
5346 sort = pa_def_subspaces[i].sort;
3b9a72c5
JL		 5347 if (USE_ALIASES && pa_def_subspaces[i].alias)
5348 alias = pa_def_subspaces[i].alias;
025b0302
ME		 5349 break;
5350 }
5351 i++;
5352 }
5353 }
5354
8f78d0e9
KR		 5355 /* We should be working with a new subspace now. Fill in
5356 any information as specified by the user. */
025b0302
ME		 5357 if (!is_end_of_statement ())
5358 {
5359 input_line_pointer++;
5360 while (!is_end_of_statement ())
5361 {
5362 name = input_line_pointer;
5363 c = get_symbol_end ();
4047ff1d 5364 if ((strncasecmp (name, "quad", 4) == 0))
025b0302
ME		 5365 {
5366 *input_line_pointer = c;
5367 input_line_pointer++;
8f78d0e9 5368 quadrant = get_absolute_expression ();
025b0302 5369 }
4047ff1d 5370 else if ((strncasecmp (name, "align", 5) == 0))
025b0302
ME		 5371 {
5372 *input_line_pointer = c;
5373 input_line_pointer++;
8f78d0e9 5374 alignment = get_absolute_expression ();
aa8b30ed 5375 if (log2 (alignment) == -1)
025b0302
ME		 5376 {
5377 as_bad ("Alignment must be a power of 2");
5378 alignment = 1;
5379 }
5380 }
4047ff1d 5381 else if ((strncasecmp (name, "access", 6) == 0))
025b0302
ME		 5382 {
5383 *input_line_pointer = c;
5384 input_line_pointer++;
8f78d0e9 5385 access = get_absolute_expression ();
025b0302 5386 }
4047ff1d 5387 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302
ME		 5388 {
5389 *input_line_pointer = c;
5390 input_line_pointer++;
8f78d0e9 5391 sort = get_absolute_expression ();
025b0302 5392 }
4047ff1d 5393 else if ((strncasecmp (name, "code_only", 9) == 0))
025b0302
ME		 5394 {
5395 *input_line_pointer = c;
5396 code_only = 1;
5397 }
4047ff1d 5398 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302
ME		 5399 {
5400 *input_line_pointer = c;
5401 loadable = 0;
5402 }
4047ff1d 5403 else if ((strncasecmp (name, "common", 6) == 0))
025b0302
ME		 5404 {
5405 *input_line_pointer = c;
5406 common = 1;
5407 }
4047ff1d 5408 else if ((strncasecmp (name, "dup_comm", 8) == 0))
025b0302
ME		 5409 {
5410 *input_line_pointer = c;
5411 dup_common = 1;
5412 }
4047ff1d 5413 else if ((strncasecmp (name, "zero", 4) == 0))
025b0302
ME		 5414 {
5415 *input_line_pointer = c;
5416 zero = 1;
5417 }
4047ff1d 5418 else if ((strncasecmp (name, "first", 5) == 0))
8f78d0e9 5419 as_bad ("FIRST not supported as a .SUBSPACE argument");
025b0302 5420 else
8f78d0e9 5421 as_bad ("Invalid .SUBSPACE argument");
025b0302
ME		 5422 if (!is_end_of_statement ())
5423 input_line_pointer++;
5424 }
5425 }
8f78d0e9 5426
3b9a72c5 5427 /* Compute a reasonable set of BFD flags based on the information
c5e9ccd0 5428 in the .subspace directive. */
3b9a72c5
JL		 5429 applicable = bfd_applicable_section_flags (stdoutput);
5430 flags = 0;
5431 if (loadable)
5432 flags |= (SEC_ALLOC | SEC_LOAD);
5433 if (code_only)
5434 flags |= SEC_CODE;
5435 if (common || dup_common)
5436 flags |= SEC_IS_COMMON;
5437
5438 /* This is a zero-filled subspace (eg BSS). */
5439 if (zero)
5440 flags &= ~SEC_LOAD;
5441
5442 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
5443 applicable &= flags;
5444
5445 /* If this is an existing subspace, then we want to use the
c5e9ccd0 5446 segment already associated with the subspace.
3b9a72c5 5447
c5e9ccd0
JL		 5448 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5449 lots of sections. It might be a problem in the PA ELF
5450 code, I do not know yet. For now avoid creating anything
5451 but the "standard" sections for ELF. */
3b9a72c5
JL		 5452 if (ssd)
5453 section = ssd->ssd_seg;
47f45d66 5454 else if (alias)
3b9a72c5 5455 section = subseg_new (alias, 0);
c5e9ccd0 5456 else if (!alias && USE_ALIASES)
3b9a72c5
JL		 5457 {
5458 as_warn ("Ignoring subspace decl due to ELF BFD bugs.");
5459 demand_empty_rest_of_line ();
5460 return;
5461 }
c5e9ccd0 5462 else
3b9a72c5
JL		 5463 section = subseg_new (ss_name, 0);
5464
5465 /* Now set the flags. */
5466 bfd_set_section_flags (stdoutput, section, applicable);
5467
5468 /* Record any alignment request for this section. */
5469 record_alignment (section, log2 (alignment));
5470
5471 /* Set the starting offset for this section. */
5472 bfd_set_section_vma (stdoutput, section,
5473 pa_subspace_start (space, quadrant));
c5e9ccd0 5474
8f78d0e9 5475 /* Now that all the flags are set, update an existing subspace,
3b9a72c5 5476 or create a new one. */
025b0302 5477 if (ssd)
3b9a72c5
JL		 5478
5479 current_subspace = update_subspace (space, ss_name, loadable,
5480 code_only, common, dup_common,
5481 sort, zero, access, space_index,
c5e9ccd0 5482 alignment, quadrant,
47f45d66 5483 section);
025b0302 5484 else
8f78d0e9
KR		 5485 current_subspace = create_new_subspace (space, ss_name, loadable,
5486 code_only, common,
5487 dup_common, zero, sort,
5488 access, space_index,
c5e9ccd0 5489 alignment, quadrant, section);
025b0302
ME		 5490
5491 demand_empty_rest_of_line ();
3b9a72c5 5492 current_subspace->ssd_seg = section;
80aab579 5493 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
025b0302 5494 }
47f45d66 5495 SUBSPACE_DEFINED (current_subspace) = 1;
025b0302
ME		 5496}
5497
025b0302 5498
8f78d0e9 5499/* Create default space and subspace dictionaries. */
025b0302 5500
c5e9ccd0 5501static void
025b0302
ME		 5502pa_spaces_begin ()
5503{
025b0302 5504 int i;
025b0302
ME		 5505
5506 space_dict_root = NULL;
5507 space_dict_last = NULL;
5508
025b0302
ME		 5509 i = 0;
5510 while (pa_def_spaces[i].name)
5511 {
3b9a72c5
JL		 5512 char *name;
5513
5514 /* Pick the right name to use for the new section. */
5515 if (pa_def_spaces[i].alias && USE_ALIASES)
5516 name = pa_def_spaces[i].alias;
025b0302 5517 else
c5e9ccd0 5518 name = pa_def_spaces[i].name;
025b0302 5519
3b9a72c5 5520 pa_def_spaces[i].segment = subseg_new (name, 0);
025b0302
ME		 5521 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
5522 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
8f78d0e9
KR		 5523 pa_def_spaces[i].private, pa_def_spaces[i].sort,
5524 pa_def_spaces[i].segment, 0);
025b0302
ME		 5525 i++;
5526 }
5527
5528 i = 0;
5529 while (pa_def_subspaces[i].name)
5530 {
3b9a72c5
JL		 5531 char *name;
5532 int applicable, subsegment;
5533 asection *segment = NULL;
5534 sd_chain_struct *space;
5535
5536 /* Pick the right name for the new section and pick the right
c5e9ccd0 5537 subsegment number. */
3b9a72c5 5538 if (pa_def_subspaces[i].alias && USE_ALIASES)
025b0302 5539 {
3b9a72c5
JL		 5540 name = pa_def_subspaces[i].alias;
5541 subsegment = pa_def_subspaces[i].subsegment;
025b0302
ME		 5542 }
5543 else
3b9a72c5
JL		 5544 {
5545 name = pa_def_subspaces[i].name;
5546 subsegment = 0;
5547 }
c5e9ccd0 5548
3b9a72c5
JL		 5549 /* Create the new section. */
5550 segment = subseg_new (name, subsegment);
5551
5552
5553 /* For SOM we want to replace the standard .text, .data, and .bss
c5e9ccd0
JL		 5554 sections with our own. */
5555 if (!strcmp (pa_def_subspaces[i].name, "$CODE$") && !USE_ALIASES)
3b9a72c5
JL		 5556 {
5557 text_section = segment;
5558 applicable = bfd_applicable_section_flags (stdoutput);
5559 bfd_set_section_flags (stdoutput, text_section,
c5e9ccd0
JL		 5560 applicable & (SEC_ALLOC | SEC_LOAD
5561 | SEC_RELOC | SEC_CODE
5562 | SEC_READONLY
3b9a72c5
JL		 5563 | SEC_HAS_CONTENTS));
5564 }
c5e9ccd0 5565 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$") && !USE_ALIASES)
3b9a72c5
JL		 5566 {
5567 data_section = segment;
5568 applicable = bfd_applicable_section_flags (stdoutput);
5569 bfd_set_section_flags (stdoutput, data_section,
c5e9ccd0 5570 applicable & (SEC_ALLOC | SEC_LOAD
3b9a72c5
JL		 5571 | SEC_RELOC
5572 | SEC_HAS_CONTENTS));
c5e9ccd0
JL		 5573
5574
3b9a72c5 5575 }
c5e9ccd0 5576 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$") && !USE_ALIASES)
3b9a72c5
JL		 5577 {
5578 bss_section = segment;
5579 applicable = bfd_applicable_section_flags (stdoutput);
5580 bfd_set_section_flags (stdoutput, bss_section,
5581 applicable & SEC_ALLOC);
5582 }
5583
5584 /* Find the space associated with this subspace. */
5585 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
5586 def_space_index].segment);
5587 if (space == NULL)
5588 {
5589 as_fatal ("Internal error: Unable to find containing space for %s.",
5590 pa_def_subspaces[i].name);
5591 }
5592
5593 create_new_subspace (space, name,
5594 pa_def_subspaces[i].loadable,
5595 pa_def_subspaces[i].code_only,
5596 pa_def_subspaces[i].common,
5597 pa_def_subspaces[i].dup_common,
5598 pa_def_subspaces[i].zero,
5599 pa_def_subspaces[i].sort,
5600 pa_def_subspaces[i].access,
5601 pa_def_subspaces[i].space_index,
5602 pa_def_subspaces[i].alignment,
5603 pa_def_subspaces[i].quadrant,
5604 segment);
025b0302
ME		 5605 i++;
5606 }
5607}
5608
8f78d0e9
KR		 5609
5610
5611/* Create a new space NAME, with the appropriate flags as defined
dd2f509f 5612 by the given parameters. */
8f78d0e9
KR		 5613
5614static sd_chain_struct *
5615create_new_space (name, spnum, loadable, defined, private,
5616 sort, seg, user_defined)
025b0302
ME		 5617 char *name;
5618 int spnum;
5619 char loadable;
5620 char defined;
5621 char private;
5622 char sort;
025b0302 5623 asection *seg;
8f78d0e9 5624 int user_defined;
025b0302 5625{
8f78d0e9
KR		 5626 sd_chain_struct *chain_entry;
5627
5628 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
025b0302 5629 if (!chain_entry)
8f78d0e9
KR		 5630 as_fatal ("Out of memory: could not allocate new space chain entry: %s\n",
5631 name);
025b0302
ME		 5632
5633 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5634 strcpy (SPACE_NAME (chain_entry), name);
8f78d0e9
KR		 5635 SPACE_DEFINED (chain_entry) = defined;
5636 SPACE_USER_DEFINED (chain_entry) = user_defined;
8f78d0e9 5637 SPACE_SPNUM (chain_entry) = spnum;
025b0302 5638
025b0302
ME		 5639 chain_entry->sd_seg = seg;
5640 chain_entry->sd_last_subseg = -1;
5641 chain_entry->sd_next = NULL;
5642
8f78d0e9 5643 /* Find spot for the new space based on its sort key. */
025b0302
ME		 5644 if (!space_dict_last)
5645 space_dict_last = chain_entry;
5646
8f78d0e9 5647 if (space_dict_root == NULL)
025b0302
ME		 5648 space_dict_root = chain_entry;
5649 else
5650 {
8f78d0e9
KR		 5651 sd_chain_struct *chain_pointer;
5652 sd_chain_struct *prev_chain_pointer;
025b0302 5653
8f78d0e9
KR		 5654 chain_pointer = space_dict_root;
5655 prev_chain_pointer = NULL;
025b0302 5656
8f78d0e9 5657 while (chain_pointer)
025b0302 5658 {
dd2f509f
JL		 5659 prev_chain_pointer = chain_pointer;
5660 chain_pointer = chain_pointer->sd_next;
025b0302
ME		 5661 }
5662
8f78d0e9
KR		 5663 /* At this point we've found the correct place to add the new
5664 entry. So add it and update the linked lists as appropriate. */
5665 if (prev_chain_pointer)
025b0302 5666 {
8f78d0e9
KR		 5667 chain_entry->sd_next = chain_pointer;
5668 prev_chain_pointer->sd_next = chain_entry;
025b0302
ME		 5669 }
5670 else
5671 {
5672 space_dict_root = chain_entry;
8f78d0e9 5673 chain_entry->sd_next = chain_pointer;
025b0302
ME		 5674 }
5675
5676 if (chain_entry->sd_next == NULL)
5677 space_dict_last = chain_entry;
5678 }
5679
548ea75b
JL		 5680 /* This is here to catch predefined spaces which do not get
5681 modified by the user's input. Another call is found at
5682 the bottom of pa_parse_space_stmt to handle cases where
5683 the user modifies a predefined space. */
5684#ifdef obj_set_section_attributes
5685 obj_set_section_attributes (seg, defined, private, sort, spnum);
5686#endif
5687
025b0302
ME		 5688 return chain_entry;
5689}
5690
8f78d0e9
KR		 5691/* Create a new subspace NAME, with the appropriate flags as defined
5692 by the given parameters.
5693
5694 Add the new subspace to the subspace dictionary chain in numerical
5695 order as defined by the SORT entries. */
5696
5697static ssd_chain_struct *
5698create_new_subspace (space, name, loadable, code_only, common,
5699 dup_common, is_zero, sort, access, space_index,
5700 alignment, quadrant, seg)
5701 sd_chain_struct *space;
025b0302 5702 char *name;
8f78d0e9 5703 char loadable, code_only, common, dup_common, is_zero;
025b0302
ME		 5704 char sort;
5705 int access;
5706 int space_index;
5707 int alignment;
5708 int quadrant;
5709 asection *seg;
5710{
8f78d0e9 5711 ssd_chain_struct *chain_entry;
025b0302 5712
8f78d0e9 5713 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
025b0302
ME		 5714 if (!chain_entry)
5715 as_fatal ("Out of memory: could not allocate new subspace chain entry: %s\n", name);
5716
025b0302
ME		 5717 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5718 strcpy (SUBSPACE_NAME (chain_entry), name);
5719
240cbc57
JL		 5720 /* Initialize subspace_defined. When we hit a .subspace directive
5721 we'll set it to 1 which "locks-in" the subspace attributes. */
5722 SUBSPACE_DEFINED (chain_entry) = 0;
5723
3b9a72c5 5724 chain_entry->ssd_subseg = USE_ALIASES ? pa_next_subseg (space) : 0;
025b0302 5725 chain_entry->ssd_seg = seg;
025b0302
ME		 5726 chain_entry->ssd_next = NULL;
5727
8f78d0e9
KR		 5728 /* Find spot for the new subspace based on its sort key. */
5729 if (space->sd_subspaces == NULL)
025b0302
ME		 5730 space->sd_subspaces = chain_entry;
5731 else
5732 {
8f78d0e9
KR		 5733 ssd_chain_struct *chain_pointer;
5734 ssd_chain_struct *prev_chain_pointer;
025b0302 5735
8f78d0e9
KR		 5736 chain_pointer = space->sd_subspaces;
5737 prev_chain_pointer = NULL;
025b0302 5738
8f78d0e9 5739 while (chain_pointer)
025b0302 5740 {
dd2f509f
JL		 5741 prev_chain_pointer = chain_pointer;
5742 chain_pointer = chain_pointer->ssd_next;
025b0302
ME		 5743 }
5744
8f78d0e9
KR		 5745 /* Now we have somewhere to put the new entry. Insert it and update
5746 the links. */
5747 if (prev_chain_pointer)
025b0302 5748 {
8f78d0e9
KR		 5749 chain_entry->ssd_next = chain_pointer;
5750 prev_chain_pointer->ssd_next = chain_entry;
025b0302
ME		 5751 }
5752 else
5753 {
5754 space->sd_subspaces = chain_entry;
8f78d0e9 5755 chain_entry->ssd_next = chain_pointer;
025b0302
ME		 5756 }
5757 }
5758
548ea75b 5759#ifdef obj_set_subsection_attributes
c5e9ccd0 5760 obj_set_subsection_attributes (seg, space->sd_seg, access,
548ea75b
JL		 5761 sort, quadrant);
5762#endif
5763
025b0302 5764 return chain_entry;
025b0302
ME		 5765}
5766
8f78d0e9
KR		 5767/* Update the information for the given subspace based upon the
5768 various arguments. Return the modified subspace chain entry. */
5769
5770static ssd_chain_struct *
3b9a72c5 5771update_subspace (space, name, loadable, code_only, common, dup_common, sort,
18c4f112 5772 zero, access, space_index, alignment, quadrant, section)
3b9a72c5 5773 sd_chain_struct *space;
025b0302 5774 char *name;
8f78d0e9
KR		 5775 char loadable;
5776 char code_only;
5777 char common;
5778 char dup_common;
5779 char zero;
025b0302
ME		 5780 char sort;
5781 int access;
5782 int space_index;
5783 int alignment;
5784 int quadrant;
18c4f112 5785 asection *section;
025b0302 5786{
8f78d0e9 5787 ssd_chain_struct *chain_entry;
025b0302 5788
dd2f509f 5789 chain_entry = is_defined_subspace (name);
025b0302 5790
548ea75b 5791#ifdef obj_set_subsection_attributes
c5e9ccd0 5792 obj_set_subsection_attributes (section, space->sd_seg, access,
548ea75b
JL		 5793 sort, quadrant);
5794#endif
5795
025b0302 5796 return chain_entry;
025b0302
ME		 5797}
5798
8f78d0e9
KR		 5799/* Return the space chain entry for the space with the name NAME or
5800 NULL if no such space exists. */
5801
5802static sd_chain_struct *
025b0302
ME		 5803is_defined_space (name)
5804 char *name;
5805{
8f78d0e9 5806 sd_chain_struct *chain_pointer;
025b0302 5807
8f78d0e9
KR		 5808 for (chain_pointer = space_dict_root;
5809 chain_pointer;
5810 chain_pointer = chain_pointer->sd_next)
025b0302 5811 {
8f78d0e9
KR		 5812 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
5813 return chain_pointer;
025b0302
ME		 5814 }
5815
8f78d0e9 5816 /* No mapping from segment to space was found. Return NULL. */
025b0302
ME		 5817 return NULL;
5818}
5819
8f78d0e9
KR		 5820/* Find and return the space associated with the given seg. If no mapping
5821 from the given seg to a space is found, then return NULL.
5822
5823 Unlike subspaces, the number of spaces is not expected to grow much,
5824 so a linear exhaustive search is OK here. */
5825
5826static sd_chain_struct *
025b0302
ME		 5827pa_segment_to_space (seg)
5828 asection *seg;
5829{
8f78d0e9 5830 sd_chain_struct *space_chain;
025b0302 5831
8f78d0e9
KR		 5832 /* Walk through each space looking for the correct mapping. */
5833 for (space_chain = space_dict_root;
5834 space_chain;
5835 space_chain = space_chain->sd_next)
025b0302 5836 {
8f78d0e9
KR		 5837 if (space_chain->sd_seg == seg)
5838 return space_chain;
025b0302
ME		 5839 }
5840
8f78d0e9 5841 /* Mapping was not found. Return NULL. */
025b0302
ME		 5842 return NULL;
5843}
5844
8f78d0e9
KR		 5845/* Return the space chain entry for the subspace with the name NAME or
5846 NULL if no such subspace exists.
5847
5848 Uses a linear search through all the spaces and subspaces, this may
5849 not be appropriate if we ever being placing each function in its
5850 own subspace. */
5851
5852static ssd_chain_struct *
47f45d66 5853is_defined_subspace (name)
025b0302 5854 char *name;
025b0302 5855{
c5e9ccd0 5856 sd_chain_struct *space_chain;
8f78d0e9 5857 ssd_chain_struct *subspace_chain;
025b0302 5858
8f78d0e9
KR		 5859 /* Walk through each space. */
5860 for (space_chain = space_dict_root;
5861 space_chain;
5862 space_chain = space_chain->sd_next)
025b0302 5863 {
8f78d0e9
KR		 5864 /* Walk through each subspace looking for a name which matches. */
5865 for (subspace_chain = space_chain->sd_subspaces;
5866 subspace_chain;
5867 subspace_chain = subspace_chain->ssd_next)
5868 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
5869 return subspace_chain;
025b0302 5870 }
8f78d0e9
KR		 5871
5872 /* Subspace wasn't found. Return NULL. */
025b0302
ME		 5873 return NULL;
5874}
5875
8f78d0e9
KR		 5876/* Find and return the subspace associated with the given seg. If no
5877 mapping from the given seg to a subspace is found, then return NULL.
5878
5879 If we ever put each procedure/function within its own subspace
5880 (to make life easier on the compiler and linker), then this will have
5881 to become more efficient. */
5882
5883static ssd_chain_struct *
025b0302
ME		 5884pa_subsegment_to_subspace (seg, subseg)
5885 asection *seg;
5886 subsegT subseg;
5887{
8f78d0e9
KR		 5888 sd_chain_struct *space_chain;
5889 ssd_chain_struct *subspace_chain;
025b0302 5890
8f78d0e9
KR		 5891 /* Walk through each space. */
5892 for (space_chain = space_dict_root;
5893 space_chain;
5894 space_chain = space_chain->sd_next)
025b0302 5895 {
8f78d0e9 5896 if (space_chain->sd_seg == seg)
025b0302 5897 {
8f78d0e9
KR		 5898 /* Walk through each subspace within each space looking for
5899 the correct mapping. */
5900 for (subspace_chain = space_chain->sd_subspaces;
5901 subspace_chain;
5902 subspace_chain = subspace_chain->ssd_next)
5903 if (subspace_chain->ssd_subseg == (int) subseg)
5904 return subspace_chain;
025b0302
ME		 5905 }
5906 }
5907
8f78d0e9 5908 /* No mapping from subsegment to subspace found. Return NULL. */
025b0302
ME		 5909 return NULL;
5910}
5911
8f78d0e9
KR		 5912/* Given a number, try and find a space with the name number.
5913
5914 Return a pointer to a space dictionary chain entry for the space
5915 that was found or NULL on failure. */
5916
5917static sd_chain_struct *
025b0302
ME		 5918pa_find_space_by_number (number)
5919 int number;
5920{
8f78d0e9 5921 sd_chain_struct *space_chain;
025b0302 5922
8f78d0e9
KR		 5923 for (space_chain = space_dict_root;
5924 space_chain;
5925 space_chain = space_chain->sd_next)
025b0302 5926 {
8f78d0e9
KR		 5927 if (SPACE_SPNUM (space_chain) == number)
5928 return space_chain;
025b0302
ME		 5929 }
5930
8f78d0e9 5931 /* No appropriate space found. Return NULL. */
025b0302
ME		 5932 return NULL;
5933}
5934
8f78d0e9
KR		 5935/* Return the starting address for the given subspace. If the starting
5936 address is unknown then return zero. */
5937
5938static unsigned int
025b0302 5939pa_subspace_start (space, quadrant)
8f78d0e9 5940 sd_chain_struct *space;
025b0302
ME		 5941 int quadrant;
5942{
8f78d0e9
KR		 5943 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
5944 is not correct for the PA OSF1 port. */
4047ff1d 5945 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
8f78d0e9 5946 return 0x40000000;
025b0302 5947 else if (space->sd_seg == data_section && quadrant == 1)
8f78d0e9 5948 return 0x40000000;
025b0302
ME		 5949 else
5950 return 0;
5951}
5952
8f78d0e9
KR		 5953/* FIXME. Needs documentation. */
5954static int
025b0302 5955pa_next_subseg (space)
8f78d0e9 5956 sd_chain_struct *space;
025b0302
ME		 5957{
5958
5959 space->sd_last_subseg++;
5960 return space->sd_last_subseg;
5961}
5962
8f78d0e9
KR		 5963/* Helper function for pa_stringer. Used to find the end of
5964 a string. */
5965
025b0302
ME		 5966static unsigned int
5967pa_stringer_aux (s)
5968 char *s;
5969{
5970 unsigned int c = *s & CHAR_MASK;
5971 switch (c)
5972 {
5973 case '\"':
5974 c = NOT_A_CHAR;
5975 break;
5976 default:
5977 break;
5978 }
5979 return c;
5980}
5981
8f78d0e9
KR		 5982/* Handle a .STRING type pseudo-op. */
5983
5984static void
5985pa_stringer (append_zero)
5986 int append_zero;
025b0302 5987{
8f78d0e9 5988 char *s, num_buf[4];
025b0302 5989 unsigned int c;
025b0302
ME		 5990 int i;
5991
8f78d0e9
KR		 5992 /* Preprocess the string to handle PA-specific escape sequences.
5993 For example, \xDD where DD is a hexidecimal number should be
5994 changed to \OOO where OOO is an octal number. */
025b0302 5995
8f78d0e9
KR		 5996 /* Skip the opening quote. */
5997 s = input_line_pointer + 1;
025b0302
ME		 5998
5999 while (is_a_char (c = pa_stringer_aux (s++)))
6000 {
6001 if (c == '\\')
6002 {
6003 c = *s;
6004 switch (c)
6005 {
8f78d0e9 6006 /* Handle \x<num>. */
025b0302
ME		 6007 case 'x':
6008 {
6009 unsigned int number;
6010 int num_digit;
6011 char dg;
6012 char *s_start = s;
6013
8f78d0e9
KR		 6014 /* Get pas the 'x'. */
6015 s++;
025b0302
ME		 6016 for (num_digit = 0, number = 0, dg = *s;
6017 num_digit < 2
6018 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
6019 || (dg >= 'A' && dg <= 'F'));
6020 num_digit++)
6021 {
6022 if (isdigit (dg))
6023 number = number * 16 + dg - '0';
6024 else if (dg >= 'a' && dg <= 'f')
6025 number = number * 16 + dg - 'a' + 10;
6026 else
6027 number = number * 16 + dg - 'A' + 10;
6028
6029 s++;
6030 dg = *s;
6031 }
6032 if (num_digit > 0)
6033 {
6034 switch (num_digit)
6035 {
6036 case 1:
6037 sprintf (num_buf, "%02o", number);
6038 break;
6039 case 2:
6040 sprintf (num_buf, "%03o", number);
6041 break;
6042 }
6043 for (i = 0; i <= num_digit; i++)
6044 s_start[i] = num_buf[i];
6045 }
5cf4cd1b 6046 break;
025b0302 6047 }
8f78d0e9 6048 /* This might be a "\"", skip over the escaped char. */
5cf4cd1b
KR		 6049 default:
6050 s++;
025b0302
ME		 6051 break;
6052 }
6053 }
6054 }
6055 stringer (append_zero);
6056 pa_undefine_label ();
6057}
6058
8f78d0e9
KR		 6059/* Handle a .VERSION pseudo-op. */
6060
6061static void
6062pa_version (unused)
6063 int unused;
025b0302 6064{
8f78d0e9 6065 obj_version (0);
025b0302
ME		 6066 pa_undefine_label ();
6067}
6068
eb91665b
JL		 6069/* Handle a .COPYRIGHT pseudo-op. */
6070
6071static void
6072pa_copyright (unused)
6073 int unused;
6074{
6075 obj_copyright (0);
6076 pa_undefine_label ();
6077}
6078
8f78d0e9
KR		 6079/* Just like a normal cons, but when finished we have to undefine
6080 the latest space label. */
6081
6082static void
025b0302 6083pa_cons (nbytes)
8f78d0e9 6084 int nbytes;
025b0302
ME		 6085{
6086 cons (nbytes);
6087 pa_undefine_label ();
6088}
6089
8f78d0e9
KR		 6090/* Switch to the data space. As usual delete our label. */
6091
6092static void
6093pa_data (unused)
6094 int unused;
025b0302 6095{
80aab579 6096 s_data (0);
025b0302
ME		 6097 pa_undefine_label ();
6098}
6099
8f78d0e9 6100/* Like float_cons, but we need to undefine our label. */
c5e9ccd0 6101
8f78d0e9 6102static void
025b0302 6103pa_float_cons (float_type)
8f78d0e9 6104 int float_type;
025b0302
ME		 6105{
6106 float_cons (float_type);
6107 pa_undefine_label ();
6108}
6109
8f78d0e9
KR		 6110/* Like s_fill, but delete our label when finished. */
6111
6112static void
6113pa_fill (unused)
6114 int unused;
025b0302 6115{
80aab579 6116 s_fill (0);
025b0302
ME		 6117 pa_undefine_label ();
6118}
6119
8f78d0e9
KR		 6120/* Like lcomm, but delete our label when finished. */
6121
6122static void
025b0302 6123pa_lcomm (needs_align)
025b0302
ME		 6124 int needs_align;
6125{
6126 s_lcomm (needs_align);
6127 pa_undefine_label ();
6128}
6129
8f78d0e9
KR		 6130/* Like lsym, but delete our label when finished. */
6131
6132static void
6133pa_lsym (unused)
6134 int unused;
025b0302 6135{
80aab579 6136 s_lsym (0);
025b0302
ME		 6137 pa_undefine_label ();
6138}
6139
8f78d0e9
KR		 6140/* Switch to the text space. Like s_text, but delete our
6141 label when finished. */
6142static void
6143pa_text (unused)
6144 int unused;
025b0302 6145{
80aab579 6146 s_text (0);
025b0302
ME		 6147 pa_undefine_label ();
6148}
5cf4cd1b 6149
aa8b30ed
JL		 6150/* On the PA relocations which involve function symbols must not be
6151 adjusted. This so that the linker can know when/how to create argument
6152 relocation stubs for indirect calls and calls to static functions.
6153
6154 FIXME. Also reject R_HPPA relocations which are 32 bits
6155 wide. Helps with code lables in arrays for SOM. (SOM BFD code
6156 needs to generate relocations to push the addend and symbol value
6157 onto the stack, add them, then pop the value off the stack and
6158 use it in a relocation -- yuk. */
6159
6160int
c5e9ccd0 6161hppa_fix_adjustable (fixp)
aa8b30ed
JL		 6162 fixS *fixp;
6163{
6164 struct hppa_fix_struct *hppa_fix;
6165
fb338f1d 6166 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
aa8b30ed
JL		 6167
6168 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
6169 return 0;
6170
c5e9ccd0 6171 if (fixp->fx_addsy == 0
aa8b30ed
JL		 6172 || (fixp->fx_addsy->bsym->flags & BSF_FUNCTION) == 0)
6173 return 1;
6174
6175 return 0;
6176}
c5e9ccd0 6177
335d35c8
JL		 6178/* Return nonzero if the fixup in FIXP will require a relocation,
6179 even it if appears that the fixup could be completely handled
6180 within GAS. */
6181
6182int
6183hppa_force_relocation (fixp)
6184 fixS *fixp;
6185{
fb338f1d 6186 struct hppa_fix_struct *hppa_fixp;
335d35c8 6187
fb338f1d 6188 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
335d35c8
JL		 6189#ifdef OBJ_SOM
6190 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT)
6191 return 1;
6192#endif
6193
6194#define stub_needed(CALLER, CALLEE) \
6195 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6196
6197 /* It is necessary to force PC-relative calls/jumps to have a relocation
6198 entry if they're going to need either a argument relocation or long
6199 call stub. FIXME. Can't we need the same for absolute calls? */
753dcbbd 6200 if (fixp->fx_pcrel && fixp->fx_addsy
335d35c8
JL		 6201 && (stub_needed (((obj_symbol_type *)
6202 fixp->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
6203 hppa_fixp->fx_arg_reloc)))
6204 return 1;
6205
6206#undef stub_needed
6207
6208 /* No need (yet) to force another relocations to be emitted. */
6209 return 0;
6210}
6211
8f78d0e9
KR		 6212/* Now for some ELF specific code. FIXME. */
6213#ifdef OBJ_ELF
6214static symext_chainS *symext_rootP;
6215static symext_chainS *symext_lastP;
6216
44c0de53
JL		 6217/* Mark the end of a function so that it's possible to compute
6218 the size of the function in hppa_elf_final_processing. */
6219
6220static void
6221hppa_elf_mark_end_of_function ()
6222{
6223 /* ELF does not have EXIT relocations. All we do is create a
6224 temporary symbol marking the end of the function. */
6225 char *name = (char *)
6226 xmalloc (strlen ("L$\001end_") +
6227 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
6228
6229 if (name)
6230 {
6231 symbolS *symbolP;
6232
6233 strcpy (name, "L$\001end_");
6234 strcat (name, S_GET_NAME (last_call_info->start_symbol));
6235
6236 /* If we have a .exit followed by a .procend, then the
6237 symbol will have already been defined. */
6238 symbolP = symbol_find (name);
6239 if (symbolP)
6240 {
6241 /* The symbol has already been defined! This can
6242 happen if we have a .exit followed by a .procend.
6243
6244 This is *not* an error. All we want to do is free
6245 the memory we just allocated for the name and continue. */
6246 xfree (name);
6247 }
6248 else
6249 {
6250 /* symbol value should be the offset of the
6251 last instruction of the function */
6252 symbolP = symbol_new (name, now_seg,
6253 (valueT) (obstack_next_free (&frags)
6254 - frag_now->fr_literal - 4),
6255 frag_now);
6256
6257 assert (symbolP);
6258 symbolP->bsym->flags = BSF_LOCAL;
6259 symbol_table_insert (symbolP);
6260 }
6261
6262 if (symbolP)
6263 last_call_info->end_symbol = symbolP;
6264 else
6265 as_bad ("Symbol '%s' could not be created.", name);
6266
6267 }
6268 else
6269 as_bad ("No memory for symbol name.");
6270
44c0de53
JL		 6271}
6272
8f78d0e9 6273/* Do any symbol processing requested by the target-cpu or target-format. */
5cf4cd1b
KR		 6274
6275void
6276hppa_tc_symbol (abfd, symbolP, sym_idx)
8f78d0e9
KR		 6277 bfd *abfd;
6278 elf_symbol_type *symbolP;
5cf4cd1b
KR		 6279 int sym_idx;
6280{
e03095c9
JL		 6281 /* Just call the ELF BFD routine. */
6282 elf_hppa_tc_symbol (abfd, symbolP, sym_idx, &symext_rootP, &symext_lastP);
5cf4cd1b
KR		 6283}
6284
8f78d0e9 6285/* Make sections needed by the target cpu and/or target format. */
5cf4cd1b
KR		 6286void
6287hppa_tc_make_sections (abfd)
8f78d0e9 6288 bfd *abfd;
5cf4cd1b 6289{
e03095c9
JL		 6290 /* Just call the ELF BFD routine. */
6291 elf_hppa_tc_make_sections (abfd, symext_rootP);
8f78d0e9
KR		 6292}
6293
6294/* For ELF, this function serves one purpose: to setup the st_size
6295 field of STT_FUNC symbols. To do this, we need to scan the
dd2f509f
JL		 6296 call_info structure list, determining st_size in by taking the
6297 difference in the address of the beginning/end marker symbols. */
8f78d0e9
KR		 6298
6299void
6300elf_hppa_final_processing ()
6301{
6302 struct call_info *call_info_pointer;
6303
6304 for (call_info_pointer = call_info_root;
6305 call_info_pointer;
6306 call_info_pointer = call_info_pointer->ci_next)
6307 {
6308 elf_symbol_type *esym
c5e9ccd0 6309 = (elf_symbol_type *) call_info_pointer->start_symbol->bsym;
8f78d0e9
KR		 6310 esym->internal_elf_sym.st_size =
6311 S_GET_VALUE (call_info_pointer->end_symbol)
c5e9ccd0 6312 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
5cf4cd1b
KR		 6313 }
6314}
8f78d0e9 6315#endif
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