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* config/tc-hppa.c (tc_gen_reloc): Fix typo in R_COMP2 code.
[deliverable/binutils-gdb.git] / gas / config / tc-hppa.c
CommitLineData
025b0302 1/* tc-hppa.c -- Assemble for the PA
eff5fcda 2 Copyright (C) 1989, 1996 Free Software Foundation, Inc.
025b0302 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
5ae218df 18 the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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
d675782a
KR		 30#include "bfd/libhppa.h"
31#include "bfd/libbfd.h"
5cf4cd1b 32
8f78d0e9
KR		 33/* Be careful, this file includes data *declarations*. */
34#include "opcode/hppa.h"
35
36/* A "convient" place to put object file dependencies which do
37 not need to be seen outside of tc-hppa.c. */
5cf4cd1b 38#ifdef OBJ_ELF
8f78d0e9
KR		 39/* Names of various debugging spaces/subspaces. */
40#define GDB_DEBUG_SPACE_NAME ".stab"
41#define GDB_STRINGS_SUBSPACE_NAME ".stabstr"
42#define GDB_SYMBOLS_SUBSPACE_NAME ".stab"
3315c7c7 43#define UNWIND_SECTION_NAME ".PARISC.unwind"
8f78d0e9
KR		 44/* Nonzero if CODE is a fixup code needing further processing. */
45
8f78d0e9
KR		 46/* Object file formats specify relocation types. */
47typedef elf32_hppa_reloc_type reloc_type;
48
49/* Object file formats specify BFD symbol types. */
50typedef elf_symbol_type obj_symbol_type;
51
aa8b30ed
JL		 52/* How to generate a relocation. */
53#define hppa_gen_reloc_type hppa_elf_gen_reloc_type
54
eb91665b
JL		 55/* ELF objects can have versions, but apparently do not have anywhere
56 to store a copyright string. */
8f78d0e9 57#define obj_version obj_elf_version
eb91665b 58#define obj_copyright obj_elf_version
8f78d0e9 59
3b9a72c5
JL		 60/* Use space aliases. */
61#define USE_ALIASES 1
8f78d0e9
KR		 62#endif
63
64#ifdef OBJ_SOM
65/* Names of various debugging spaces/subspaces. */
66#define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
67#define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
68#define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
69#define UNWIND_SECTION_NAME "$UNWIND$"
70
71/* Object file formats specify relocation types. */
72typedef int reloc_type;
73
eb91665b 74/* SOM objects can have both a version string and a copyright string. */
8f78d0e9 75#define obj_version obj_som_version
eb91665b 76#define obj_copyright obj_som_copyright
8f78d0e9 77
3b9a72c5
JL		 78/* Do not use space aliases. */
79#define USE_ALIASES 0
80
aa8b30ed
JL		 81/* How to generate a relocation. */
82#define hppa_gen_reloc_type hppa_som_gen_reloc_type
8f78d0e9
KR		 83
84/* Object file formats specify BFD symbol types. */
85typedef som_symbol_type obj_symbol_type;
907f11fe
JL		 86
87/* This apparently isn't in older versions of hpux reloc.h. */
88#ifndef R_DLT_REL
89#define R_DLT_REL 0x78
90#endif
5cf4cd1b
KR		 91#endif
92
8f78d0e9
KR		 93/* Various structures and types used internally in tc-hppa.c. */
94
95/* Unwind table and descriptor. FIXME: Sync this with GDB version. */
025b0302
ME		 96
97struct unwind_desc
98 {
99 unsigned int cannot_unwind:1;
100 unsigned int millicode:1;
101 unsigned int millicode_save_rest:1;
102 unsigned int region_desc:2;
103 unsigned int save_sr:2;
8f78d0e9
KR		 104 unsigned int entry_fr:4;
105 unsigned int entry_gr:5;
025b0302
ME		 106 unsigned int args_stored:1;
107 unsigned int call_fr:5;
108 unsigned int call_gr:5;
109 unsigned int save_sp:1;
110 unsigned int save_rp:1;
111 unsigned int save_rp_in_frame:1;
112 unsigned int extn_ptr_defined:1;
113 unsigned int cleanup_defined:1;
114
115 unsigned int hpe_interrupt_marker:1;
116 unsigned int hpux_interrupt_marker:1;
117 unsigned int reserved:3;
118 unsigned int frame_size:27;
119 };
120
025b0302
ME		 121struct unwind_table
122 {
8f78d0e9
KR		 123 /* Starting and ending offsets of the region described by
124 descriptor. */
125 unsigned int start_offset;
126 unsigned int end_offset;
127 struct unwind_desc descriptor;
025b0302
ME		 128 };
129
8f78d0e9
KR		 130/* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
131 control the entry and exit code they generate. It is also used in
132 creation of the correct stack unwind descriptors.
025b0302 133
8f78d0e9
KR		 134 NOTE: GAS does not support .enter and .leave for the generation of
135 prologues and epilogues. FIXME.
136
137 The fields in structure roughly correspond to the arguments available on the
138 .callinfo pseudo-op. */
025b0302
ME		 139
140struct call_info
141 {
8f78d0e9
KR		 142 /* The unwind descriptor being built. */
143 struct unwind_table ci_unwind;
144
145 /* Name of this function. */
146 symbolS *start_symbol;
147
4ff6f92a
JL		 148 /* (temporary) symbol used to mark the end of this function. */
149 symbolS *end_symbol;
8f78d0e9 150
8f78d0e9
KR		 151 /* Next entry in the chain. */
152 struct call_info *ci_next;
153 };
154
155/* Operand formats for FP instructions. Note not all FP instructions
156 allow all four formats to be used (for example fmpysub only allows
157 SGL and DBL). */
158typedef enum
159 {
160 SGL, DBL, ILLEGAL_FMT, QUAD
161 }
162fp_operand_format;
163
e75acd68
JL		 164/* This fully describes the symbol types which may be attached to
165 an EXPORT or IMPORT directive. Only SOM uses this formation
166 (ELF has no need for it). */
167typedef enum
c5e9ccd0
JL		 168 {
169 SYMBOL_TYPE_UNKNOWN,
170 SYMBOL_TYPE_ABSOLUTE,
171 SYMBOL_TYPE_CODE,
172 SYMBOL_TYPE_DATA,
173 SYMBOL_TYPE_ENTRY,
174 SYMBOL_TYPE_MILLICODE,
175 SYMBOL_TYPE_PLABEL,
176 SYMBOL_TYPE_PRI_PROG,
177 SYMBOL_TYPE_SEC_PROG,
178 }
179pa_symbol_type;
e75acd68 180
75c28b49 181/* This structure contains information needed to assemble
8f78d0e9 182 individual instructions. */
025b0302
ME		 183struct pa_it
184 {
8f78d0e9 185 /* Holds the opcode after parsing by pa_ip. */
025b0302 186 unsigned long opcode;
8f78d0e9
KR		 187
188 /* Holds an expression associated with the current instruction. */
025b0302 189 expressionS exp;
8f78d0e9
KR		 190
191 /* Does this instruction use PC-relative addressing. */
025b0302 192 int pcrel;
8f78d0e9
KR		 193
194 /* Floating point formats for operand1 and operand2. */
195 fp_operand_format fpof1;
196 fp_operand_format fpof2;
197
198 /* Holds the field selector for this instruction
199 (for example L%, LR%, etc). */
025b0302 200 long field_selector;
8f78d0e9
KR		 201
202 /* Holds any argument relocation bits associated with this
203 instruction. (instruction should be some sort of call). */
025b0302 204 long arg_reloc;
8f78d0e9
KR		 205
206 /* The format specification for this instruction. */
025b0302 207 int format;
8f78d0e9
KR		 208
209 /* The relocation (if any) associated with this instruction. */
210 reloc_type reloc;
025b0302
ME		 211 };
212
8f78d0e9 213/* PA-89 floating point registers are arranged like this:
025b0302 214
025b0302 215
8f78d0e9
KR		 216 +--------------+--------------+
217 | 0 or 16L | 16 or 16R |
218 +--------------+--------------+
219 | 1 or 17L | 17 or 17R |
220 +--------------+--------------+
221 | | |
222
223 . . .
224 . . .
225 . . .
226
227 | | |
228 +--------------+--------------+
229 | 14 or 30L | 30 or 30R |
230 +--------------+--------------+
231 | 15 or 31L | 31 or 31R |
232 +--------------+--------------+
233
234
235 The following is a version of pa_parse_number that
236 handles the L/R notation and returns the correct
237 value to put into the instruction register field.
238 The correct value to put into the instruction is
4829cd65 239 encoded in the structure 'pa_11_fp_reg_struct'. */
8f78d0e9 240
4829cd65 241struct pa_11_fp_reg_struct
8f78d0e9
KR		 242 {
243 /* The register number. */
244 char number_part;
245
246 /* L/R selector. */
247 char l_r_select;
248 };
249
250/* Additional information needed to build argument relocation stubs. */
251struct call_desc
252 {
253 /* The argument relocation specification. */
254 unsigned int arg_reloc;
255
256 /* Number of arguments. */
257 unsigned int arg_count;
258 };
259
260/* This structure defines an entry in the subspace dictionary
261 chain. */
262
263struct subspace_dictionary_chain
264 {
47f45d66
JL		 265 /* Nonzero if this space has been defined by the user code. */
266 unsigned int ssd_defined;
267
8f78d0e9
KR		 268 /* Name of this subspace. */
269 char *ssd_name;
270
271 /* GAS segment and subsegment associated with this subspace. */
272 asection *ssd_seg;
273 int ssd_subseg;
274
8f78d0e9
KR		 275 /* Next space in the subspace dictionary chain. */
276 struct subspace_dictionary_chain *ssd_next;
277 };
278
279typedef struct subspace_dictionary_chain ssd_chain_struct;
280
281/* This structure defines an entry in the subspace dictionary
282 chain. */
283
284struct space_dictionary_chain
285 {
75c28b49 286 /* Nonzero if this space has been defined by the user code or
8f78d0e9
KR		 287 as a default space. */
288 unsigned int sd_defined;
289
290 /* Nonzero if this spaces has been defined by the user code. */
291 unsigned int sd_user_defined;
292
8f78d0e9
KR		 293 /* The space number (or index). */
294 unsigned int sd_spnum;
295
8f78d0e9
KR		 296 /* The name of this subspace. */
297 char *sd_name;
298
299 /* GAS segment to which this subspace corresponds. */
300 asection *sd_seg;
301
302 /* Current subsegment number being used. */
303 int sd_last_subseg;
304
305 /* The chain of subspaces contained within this space. */
306 ssd_chain_struct *sd_subspaces;
307
308 /* The next entry in the space dictionary chain. */
309 struct space_dictionary_chain *sd_next;
310 };
311
312typedef struct space_dictionary_chain sd_chain_struct;
313
314/* Structure for previous label tracking. Needed so that alignments,
315 callinfo declarations, etc can be easily attached to a particular
316 label. */
317typedef struct label_symbol_struct
318 {
319 struct symbol *lss_label;
320 sd_chain_struct *lss_space;
321 struct label_symbol_struct *lss_next;
322 }
323label_symbol_struct;
324
325/* This structure defines attributes of the default subspace
326 dictionary entries. */
327
328struct default_subspace_dict
329 {
c5e9ccd0 330 /* Name of the subspace. */
8f78d0e9
KR		 331 char *name;
332
333 /* FIXME. Is this still needed? */
334 char defined;
335
336 /* Nonzero if this subspace is loadable. */
337 char loadable;
338
339 /* Nonzero if this subspace contains only code. */
340 char code_only;
341
342 /* Nonzero if this is a common subspace. */
343 char common;
344
345 /* Nonzero if this is a common subspace which allows symbols
346 to be multiply defined. */
347 char dup_common;
348
349 /* Nonzero if this subspace should be zero filled. */
350 char zero;
351
352 /* Sort key for this subspace. */
353 unsigned char sort;
354
355 /* Access control bits for this subspace. Can represent RWX access
356 as well as privilege level changes for gateways. */
357 int access;
358
359 /* Index of containing space. */
360 int space_index;
361
362 /* Alignment (in bytes) of this subspace. */
363 int alignment;
364
365 /* Quadrant within space where this subspace should be loaded. */
366 int quadrant;
367
368 /* An index into the default spaces array. */
369 int def_space_index;
370
371 /* An alias for this section (or NULL if no alias exists). */
372 char *alias;
373
374 /* Subsegment associated with this subspace. */
375 subsegT subsegment;
376 };
377
378/* This structure defines attributes of the default space
379 dictionary entries. */
380
381struct default_space_dict
382 {
383 /* Name of the space. */
384 char *name;
385
386 /* Space number. It is possible to identify spaces within
387 assembly code numerically! */
388 int spnum;
389
390 /* Nonzero if this space is loadable. */
391 char loadable;
392
393 /* Nonzero if this space is "defined". FIXME is still needed */
394 char defined;
395
396 /* Nonzero if this space can not be shared. */
397 char private;
398
399 /* Sort key for this space. */
400 unsigned char sort;
401
402 /* Segment associated with this space. */
403 asection *segment;
404
405 /* An alias for this section (or NULL if no alias exists). */
406 char *alias;
407 };
408
409/* Extra information needed to perform fixups (relocations) on the PA. */
410struct hppa_fix_struct
c5e9ccd0 411 {
8f78d0e9 412 /* The field selector. */
f2eed884 413 enum hppa_reloc_field_selector_type fx_r_field;
8f78d0e9
KR		 414
415 /* Type of fixup. */
416 int fx_r_type;
417
418 /* Format of fixup. */
419 int fx_r_format;
420
421 /* Argument relocation bits. */
422 long fx_arg_reloc;
423
fca59f9d
JL		 424 /* The segment this fixup appears in. */
425 segT segment;
c5e9ccd0 426 };
8f78d0e9
KR		 427
428/* Structure to hold information about predefined registers. */
429
430struct pd_reg
c5e9ccd0
JL		 431 {
432 char *name;
433 int value;
434 };
8f78d0e9
KR		 435
436/* This structure defines the mapping from a FP condition string
437 to a condition number which can be recorded in an instruction. */
438struct fp_cond_map
c5e9ccd0
JL		 439 {
440 char *string;
441 int cond;
442 };
8f78d0e9
KR		 443
444/* This structure defines a mapping from a field selector
445 string to a field selector type. */
446struct selector_entry
c5e9ccd0
JL		 447 {
448 char *prefix;
449 int field_selector;
450 };
025b0302 451
8f78d0e9
KR		 452/* Prototypes for functions local to tc-hppa.c. */
453
60937ce7 454static void pa_check_current_space_and_subspace PARAMS ((void));
8f78d0e9 455static fp_operand_format pa_parse_fp_format PARAMS ((char **s));
8f78d0e9
KR		 456static void pa_cons PARAMS ((int));
457static void pa_data PARAMS ((int));
8f78d0e9
KR		 458static void pa_float_cons PARAMS ((int));
459static void pa_fill PARAMS ((int));
460static void pa_lcomm PARAMS ((int));
461static void pa_lsym PARAMS ((int));
462static void pa_stringer PARAMS ((int));
463static void pa_text PARAMS ((int));
464static void pa_version PARAMS ((int));
465static int pa_parse_fp_cmp_cond PARAMS ((char **));
466static int get_expression PARAMS ((char *));
48153d49
JL		 467static int pa_get_absolute_expression PARAMS ((struct pa_it *, char **));
468static int evaluate_absolute PARAMS ((struct pa_it *));
8f78d0e9
KR		 469static unsigned int pa_build_arg_reloc PARAMS ((char *));
470static unsigned int pa_align_arg_reloc PARAMS ((unsigned int, unsigned int));
471static int pa_parse_nullif PARAMS ((char **));
472static int pa_parse_nonneg_cmpsub_cmpltr PARAMS ((char **, int));
473static int pa_parse_neg_cmpsub_cmpltr PARAMS ((char **, int));
474static int pa_parse_neg_add_cmpltr PARAMS ((char **, int));
475static int pa_parse_nonneg_add_cmpltr PARAMS ((char **, int));
e67b3aa3 476static void pa_align PARAMS ((int));
8f78d0e9 477static void pa_block PARAMS ((int));
5ae218df 478static void pa_brtab PARAMS ((int));
8f78d0e9
KR		 479static void pa_call PARAMS ((int));
480static void pa_call_args PARAMS ((struct call_desc *));
481static void pa_callinfo PARAMS ((int));
482static void pa_code PARAMS ((int));
483static void pa_comm PARAMS ((int));
484static void pa_copyright PARAMS ((int));
485static void pa_end PARAMS ((int));
486static void pa_enter PARAMS ((int));
487static void pa_entry PARAMS ((int));
488static void pa_equ PARAMS ((int));
489static void pa_exit PARAMS ((int));
490static void pa_export PARAMS ((int));
48153d49 491static void pa_type_args PARAMS ((symbolS *, int));
8f78d0e9
KR		 492static void pa_import PARAMS ((int));
493static void pa_label PARAMS ((int));
494static void pa_leave PARAMS ((int));
495static void pa_origin PARAMS ((int));
496static void pa_proc PARAMS ((int));
497static void pa_procend PARAMS ((int));
498static void pa_space PARAMS ((int));
499static void pa_spnum PARAMS ((int));
500static void pa_subspace PARAMS ((int));
501static void pa_param PARAMS ((int));
502static void pa_undefine_label PARAMS ((void));
4829cd65
JL		 503static int need_pa11_opcode PARAMS ((struct pa_it *,
504 struct pa_11_fp_reg_struct *));
505static int pa_parse_number PARAMS ((char **, struct pa_11_fp_reg_struct *));
8f78d0e9 506static label_symbol_struct *pa_get_label PARAMS ((void));
de3ffc7a
JL		 507static sd_chain_struct *create_new_space PARAMS ((char *, int, int,
508 int, int, int,
8f78d0e9 509 asection *, int));
c5e9ccd0 510static ssd_chain_struct *create_new_subspace PARAMS ((sd_chain_struct *,
de3ffc7a
JL		 511 char *, int, int,
512 int, int, int,
513 int, int, int, int,
c5e9ccd0 514 int, asection *));
3b9a72c5 515static ssd_chain_struct *update_subspace PARAMS ((sd_chain_struct *,
de3ffc7a
JL		 516 char *, int, int, int,
517 int, int, int, int,
18c4f112
JL		 518 int, int, int,
519 asection *));
8f78d0e9 520static sd_chain_struct *is_defined_space PARAMS ((char *));
47f45d66 521static ssd_chain_struct *is_defined_subspace PARAMS ((char *));
8f78d0e9 522static sd_chain_struct *pa_segment_to_space PARAMS ((asection *));
c5e9ccd0
JL		 523static ssd_chain_struct *pa_subsegment_to_subspace PARAMS ((asection *,
524 subsegT));
8f78d0e9
KR		 525static sd_chain_struct *pa_find_space_by_number PARAMS ((int));
526static unsigned int pa_subspace_start PARAMS ((sd_chain_struct *, int));
8f78d0e9 527static void pa_ip PARAMS ((char *));
de3ffc7a 528static void fix_new_hppa PARAMS ((fragS *, int, int, symbolS *,
8f78d0e9 529 long, expressionS *, int,
f2eed884
JL		 530 bfd_reloc_code_real_type,
531 enum hppa_reloc_field_selector_type,
75c28b49 532 int, long, int *));
8f78d0e9
KR		 533static int is_end_of_statement PARAMS ((void));
534static int reg_name_search PARAMS ((char *));
535static int pa_chk_field_selector PARAMS ((char **));
536static int is_same_frag PARAMS ((fragS *, fragS *));
537static void pa_build_unwind_subspace PARAMS ((struct call_info *));
538static void process_exit PARAMS ((void));
539static sd_chain_struct *pa_parse_space_stmt PARAMS ((char *, int));
aa8b30ed 540static int log2 PARAMS ((int));
8f78d0e9
KR		 541static int pa_next_subseg PARAMS ((sd_chain_struct *));
542static unsigned int pa_stringer_aux PARAMS ((char *));
543static void pa_spaces_begin PARAMS ((void));
4ff6f92a 544static void hppa_elf_mark_end_of_function PARAMS ((void));
8f78d0e9
KR		 545
546/* File and gloally scoped variable declarations. */
547
548/* Root and final entry in the space chain. */
549static sd_chain_struct *space_dict_root;
550static sd_chain_struct *space_dict_last;
551
552/* The current space and subspace. */
553static sd_chain_struct *current_space;
554static ssd_chain_struct *current_subspace;
555
556/* Root of the call_info chain. */
557static struct call_info *call_info_root;
558
559/* The last call_info (for functions) structure
560 seen so it can be associated with fixups and
561 function labels. */
562static struct call_info *last_call_info;
563
c5e9ccd0 564/* The last call description (for actual calls). */
8f78d0e9
KR		 565static struct call_desc last_call_desc;
566
c5e9ccd0 567/* Jumps are always the same size -- one instruction. */
025b0302
ME		 568int md_short_jump_size = 4;
569int md_long_jump_size = 4;
570
8f78d0e9
KR		 571/* handle of the OPCODE hash table */
572static struct hash_control *op_hash = NULL;
025b0302 573
8f78d0e9
KR		 574/* This array holds the chars that always start a comment. If the
575 pre-processor is disabled, these aren't very useful. */
576const char comment_chars[] = ";";
577
578/* Table of pseudo ops for the PA. FIXME -- how many of these
579 are now redundant with the overall GAS and the object file
580 dependent tables? */
581const pseudo_typeS md_pseudo_table[] =
582{
583 /* align pseudo-ops on the PA specify the actual alignment requested,
584 not the log2 of the requested alignment. */
e67b3aa3 585 {"align", pa_align, 8},
5ae218df 586 {"begin_brtab", pa_brtab, 1},
025b0302 587 {"block", pa_block, 1},
025b0302 588 {"blockz", pa_block, 0},
025b0302 589 {"byte", pa_cons, 1},
025b0302 590 {"call", pa_call, 0},
025b0302 591 {"callinfo", pa_callinfo, 0},
025b0302 592 {"code", pa_code, 0},
025b0302 593 {"comm", pa_comm, 0},
025b0302 594 {"copyright", pa_copyright, 0},
025b0302 595 {"data", pa_data, 0},
025b0302 596 {"double", pa_float_cons, 'd'},
025b0302 597 {"end", pa_end, 0},
5ae218df 598 {"end_brtab", pa_brtab, 0},
025b0302 599 {"enter", pa_enter, 0},
025b0302 600 {"entry", pa_entry, 0},
025b0302 601 {"equ", pa_equ, 0},
025b0302 602 {"exit", pa_exit, 0},
025b0302 603 {"export", pa_export, 0},
025b0302 604 {"fill", pa_fill, 0},
025b0302 605 {"float", pa_float_cons, 'f'},
025b0302 606 {"half", pa_cons, 2},
025b0302 607 {"import", pa_import, 0},
025b0302 608 {"int", pa_cons, 4},
025b0302 609 {"label", pa_label, 0},
025b0302 610 {"lcomm", pa_lcomm, 0},
025b0302 611 {"leave", pa_leave, 0},
025b0302 612 {"long", pa_cons, 4},
025b0302 613 {"lsym", pa_lsym, 0},
83b59013 614 {"nsubspa", pa_subspace, 1},
aa8b30ed 615 {"octa", pa_cons, 16},
025b0302 616 {"org", pa_origin, 0},
025b0302 617 {"origin", pa_origin, 0},
5cf4cd1b 618 {"param", pa_param, 0},
025b0302 619 {"proc", pa_proc, 0},
025b0302 620 {"procend", pa_procend, 0},
aa8b30ed 621 {"quad", pa_cons, 8},
8f78d0e9 622 {"reg", pa_equ, 1},
025b0302 623 {"short", pa_cons, 2},
025b0302 624 {"single", pa_float_cons, 'f'},
025b0302 625 {"space", pa_space, 0},
025b0302 626 {"spnum", pa_spnum, 0},
025b0302 627 {"string", pa_stringer, 0},
025b0302 628 {"stringz", pa_stringer, 1},
025b0302 629 {"subspa", pa_subspace, 0},
025b0302 630 {"text", pa_text, 0},
025b0302 631 {"version", pa_version, 0},
025b0302 632 {"word", pa_cons, 4},
025b0302
ME		 633 {NULL, 0, 0}
634};
635
636/* This array holds the chars that only start a comment at the beginning of
637 a line. If the line seems to have the form '# 123 filename'
8f78d0e9
KR		 638 .line and .file directives will appear in the pre-processed output.
639
640 Note that input_file.c hand checks for '#' at the beginning of the
025b0302 641 first line of the input file. This is because the compiler outputs
8f78d0e9
KR		 642 #NO_APP at the beginning of its output.
643
644 Also note that '/*' will always start a comment. */
025b0302
ME		 645const char line_comment_chars[] = "#";
646
8f78d0e9 647/* This array holds the characters which act as line separators. */
025b0302
ME		 648const char line_separator_chars[] = "!";
649
8f78d0e9 650/* Chars that can be used to separate mant from exp in floating point nums. */
025b0302
ME		 651const char EXP_CHARS[] = "eE";
652
8f78d0e9 653/* Chars that mean this number is a floating point constant.
75c28b49 654 As in 0f12.456 or 0d1.2345e12.
025b0302 655
75c28b49 656 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
8f78d0e9
KR		 657 changed in read.c. Ideally it shouldn't hae to know abou it at
658 all, but nothing is ideal around here. */
659const char FLT_CHARS[] = "rRsSfFdDxXpP";
025b0302 660
8f78d0e9 661static struct pa_it the_insn;
025b0302 662
8f78d0e9
KR		 663/* Points to the end of an expression just parsed by get_expressoin
664 and friends. FIXME. This shouldn't be handled with a file-global
665 variable. */
666static char *expr_end;
025b0302 667
8f78d0e9 668/* Nonzero if a .callinfo appeared within the current procedure. */
5cf4cd1b 669static int callinfo_found;
025b0302 670
8f78d0e9 671/* Nonzero if the assembler is currently within a .entry/.exit pair. */
5cf4cd1b 672static int within_entry_exit;
025b0302 673
8f78d0e9 674/* Nonzero if the assembler is currently within a procedure definition. */
5cf4cd1b 675static int within_procedure;
025b0302 676
8f78d0e9
KR		 677/* Handle on strucutre which keep track of the last symbol
678 seen in each subspace. */
679static label_symbol_struct *label_symbols_rootp = NULL;
025b0302 680
8f78d0e9
KR		 681/* Holds the last field selector. */
682static int hppa_field_selector;
025b0302 683
6868afe6 684/* A dummy bfd symbol so that all relocations have symbols of some kind. */
fca59f9d 685static symbolS *dummy_symbol;
6868afe6 686
8f78d0e9
KR		 687/* Nonzero if errors are to be printed. */
688static int print_errors = 1;
025b0302 689
8f78d0e9 690/* List of registers that are pre-defined:
025b0302 691
8f78d0e9 692 Each general register has one predefined name of the form
75c28b49 693 %r<REGNUM> which has the value <REGNUM>.
025b0302 694
8f78d0e9 695 Space and control registers are handled in a similar manner,
75c28b49 696 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
025b0302 697
8f78d0e9
KR		 698 Likewise for the floating point registers, but of the form
699 %fr<REGNUM>. Floating point registers have additional predefined
700 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
701 again have the value <REGNUM>.
025b0302 702
8f78d0e9 703 Many registers also have synonyms:
025b0302 704
8f78d0e9
KR		 705 %r26 - %r23 have %arg0 - %arg3 as synonyms
706 %r28 - %r29 have %ret0 - %ret1 as synonyms
707 %r30 has %sp as a synonym
d6e524f3
JL		 708 %r27 has %dp as a synonym
709 %r2 has %rp as a synonym
025b0302 710
8f78d0e9 711 Almost every control register has a synonym; they are not listed
75c28b49 712 here for brevity.
025b0302 713
8f78d0e9 714 The table is sorted. Suitable for searching by a binary search. */
025b0302 715
8f78d0e9 716static const struct pd_reg pre_defined_registers[] =
025b0302 717{
8f78d0e9
KR		 718 {"%arg0", 26},
719 {"%arg1", 25},
720 {"%arg2", 24},
721 {"%arg3", 23},
722 {"%cr0", 0},
723 {"%cr10", 10},
724 {"%cr11", 11},
725 {"%cr12", 12},
726 {"%cr13", 13},
727 {"%cr14", 14},
728 {"%cr15", 15},
729 {"%cr16", 16},
730 {"%cr17", 17},
731 {"%cr18", 18},
732 {"%cr19", 19},
733 {"%cr20", 20},
734 {"%cr21", 21},
735 {"%cr22", 22},
736 {"%cr23", 23},
737 {"%cr24", 24},
738 {"%cr25", 25},
739 {"%cr26", 26},
740 {"%cr27", 27},
741 {"%cr28", 28},
742 {"%cr29", 29},
743 {"%cr30", 30},
744 {"%cr31", 31},
745 {"%cr8", 8},
746 {"%cr9", 9},
d6e524f3 747 {"%dp", 27},
8f78d0e9
KR		 748 {"%eiem", 15},
749 {"%eirr", 23},
750 {"%fr0", 0},
4047ff1d
JL		 751 {"%fr0l", 0},
752 {"%fr0r", 0},
8f78d0e9
KR		 753 {"%fr1", 1},
754 {"%fr10", 10},
4047ff1d
JL		 755 {"%fr10l", 10},
756 {"%fr10r", 10},
8f78d0e9 757 {"%fr11", 11},
4047ff1d
JL		 758 {"%fr11l", 11},
759 {"%fr11r", 11},
8f78d0e9 760 {"%fr12", 12},
4047ff1d
JL		 761 {"%fr12l", 12},
762 {"%fr12r", 12},
8f78d0e9 763 {"%fr13", 13},
4047ff1d
JL		 764 {"%fr13l", 13},
765 {"%fr13r", 13},
8f78d0e9 766 {"%fr14", 14},
4047ff1d
JL		 767 {"%fr14l", 14},
768 {"%fr14r", 14},
8f78d0e9 769 {"%fr15", 15},
4047ff1d
JL		 770 {"%fr15l", 15},
771 {"%fr15r", 15},
8f78d0e9 772 {"%fr16", 16},
4047ff1d
JL		 773 {"%fr16l", 16},
774 {"%fr16r", 16},
8f78d0e9 775 {"%fr17", 17},
4047ff1d
JL		 776 {"%fr17l", 17},
777 {"%fr17r", 17},
8f78d0e9 778 {"%fr18", 18},
4047ff1d
JL		 779 {"%fr18l", 18},
780 {"%fr18r", 18},
8f78d0e9 781 {"%fr19", 19},
4047ff1d
JL		 782 {"%fr19l", 19},
783 {"%fr19r", 19},
784 {"%fr1l", 1},
785 {"%fr1r", 1},
8f78d0e9
KR		 786 {"%fr2", 2},
787 {"%fr20", 20},
4047ff1d
JL		 788 {"%fr20l", 20},
789 {"%fr20r", 20},
8f78d0e9 790 {"%fr21", 21},
4047ff1d
JL		 791 {"%fr21l", 21},
792 {"%fr21r", 21},
8f78d0e9 793 {"%fr22", 22},
4047ff1d
JL		 794 {"%fr22l", 22},
795 {"%fr22r", 22},
8f78d0e9 796 {"%fr23", 23},
4047ff1d
JL		 797 {"%fr23l", 23},
798 {"%fr23r", 23},
8f78d0e9 799 {"%fr24", 24},
4047ff1d
JL		 800 {"%fr24l", 24},
801 {"%fr24r", 24},
8f78d0e9 802 {"%fr25", 25},
4047ff1d
JL		 803 {"%fr25l", 25},
804 {"%fr25r", 25},
8f78d0e9 805 {"%fr26", 26},
4047ff1d
JL		 806 {"%fr26l", 26},
807 {"%fr26r", 26},
8f78d0e9 808 {"%fr27", 27},
4047ff1d
JL		 809 {"%fr27l", 27},
810 {"%fr27r", 27},
8f78d0e9 811 {"%fr28", 28},
4047ff1d
JL		 812 {"%fr28l", 28},
813 {"%fr28r", 28},
8f78d0e9 814 {"%fr29", 29},
4047ff1d
JL		 815 {"%fr29l", 29},
816 {"%fr29r", 29},
817 {"%fr2l", 2},
818 {"%fr2r", 2},
8f78d0e9
KR		 819 {"%fr3", 3},
820 {"%fr30", 30},
4047ff1d
JL		 821 {"%fr30l", 30},
822 {"%fr30r", 30},
8f78d0e9 823 {"%fr31", 31},
4047ff1d
JL		 824 {"%fr31l", 31},
825 {"%fr31r", 31},
826 {"%fr3l", 3},
827 {"%fr3r", 3},
8f78d0e9 828 {"%fr4", 4},
4047ff1d
JL		 829 {"%fr4l", 4},
830 {"%fr4r", 4},
8f78d0e9 831 {"%fr5", 5},
4047ff1d
JL		 832 {"%fr5l", 5},
833 {"%fr5r", 5},
8f78d0e9 834 {"%fr6", 6},
4047ff1d
JL		 835 {"%fr6l", 6},
836 {"%fr6r", 6},
8f78d0e9 837 {"%fr7", 7},
4047ff1d
JL		 838 {"%fr7l", 7},
839 {"%fr7r", 7},
8f78d0e9 840 {"%fr8", 8},
4047ff1d
JL		 841 {"%fr8l", 8},
842 {"%fr8r", 8},
8f78d0e9 843 {"%fr9", 9},
4047ff1d
JL		 844 {"%fr9l", 9},
845 {"%fr9r", 9},
8f78d0e9
KR		 846 {"%hta", 25},
847 {"%iir", 19},
848 {"%ior", 21},
849 {"%ipsw", 22},
850 {"%isr", 20},
851 {"%itmr", 16},
852 {"%iva", 14},
853 {"%pcoq", 18},
854 {"%pcsq", 17},
855 {"%pidr1", 8},
856 {"%pidr2", 9},
857 {"%pidr3", 12},
858 {"%pidr4", 13},
859 {"%ppda", 24},
860 {"%r0", 0},
861 {"%r1", 1},
862 {"%r10", 10},
863 {"%r11", 11},
864 {"%r12", 12},
865 {"%r13", 13},
866 {"%r14", 14},
867 {"%r15", 15},
868 {"%r16", 16},
869 {"%r17", 17},
870 {"%r18", 18},
871 {"%r19", 19},
872 {"%r2", 2},
873 {"%r20", 20},
874 {"%r21", 21},
875 {"%r22", 22},
876 {"%r23", 23},
877 {"%r24", 24},
878 {"%r25", 25},
879 {"%r26", 26},
880 {"%r27", 27},
881 {"%r28", 28},
882 {"%r29", 29},
883 {"%r3", 3},
884 {"%r30", 30},
885 {"%r31", 31},
886 {"%r4", 4},
8f78d0e9 887 {"%r5", 5},
8f78d0e9 888 {"%r6", 6},
8f78d0e9 889 {"%r7", 7},
8f78d0e9 890 {"%r8", 8},
8f78d0e9 891 {"%r9", 9},
8f78d0e9
KR		 892 {"%rctr", 0},
893 {"%ret0", 28},
894 {"%ret1", 29},
d6e524f3 895 {"%rp", 2},
8f78d0e9
KR		 896 {"%sar", 11},
897 {"%sp", 30},
898 {"%sr0", 0},
899 {"%sr1", 1},
900 {"%sr2", 2},
901 {"%sr3", 3},
902 {"%sr4", 4},
903 {"%sr5", 5},
904 {"%sr6", 6},
905 {"%sr7", 7},
906 {"%tr0", 24},
907 {"%tr1", 25},
908 {"%tr2", 26},
909 {"%tr3", 27},
910 {"%tr4", 28},
911 {"%tr5", 29},
912 {"%tr6", 30},
913 {"%tr7", 31}
914};
025b0302 915
8f78d0e9 916/* This table is sorted by order of the length of the string. This is
75c28b49 917 so we check for <> before we check for <. If we had a <> and checked
8f78d0e9 918 for < first, we would get a false match. */
c5e9ccd0 919static const struct fp_cond_map fp_cond_map[] =
8f78d0e9
KR		 920{
921 {"false?", 0},
922 {"false", 1},
923 {"true?", 30},
924 {"true", 31},
925 {"!<=>", 3},
926 {"!?>=", 8},
927 {"!?<=", 16},
928 {"!<>", 7},
929 {"!>=", 11},
930 {"!?>", 12},
931 {"?<=", 14},
932 {"!<=", 19},
933 {"!?<", 20},
934 {"?>=", 22},
935 {"!?=", 24},
936 {"!=t", 27},
937 {"<=>", 29},
938 {"=t", 5},
939 {"?=", 6},
940 {"?<", 10},
941 {"<=", 13},
942 {"!>", 15},
943 {"?>", 18},
944 {">=", 21},
945 {"!<", 23},
946 {"<>", 25},
947 {"!=", 26},
948 {"!?", 28},
949 {"?", 2},
950 {"=", 4},
951 {"<", 9},
952 {">", 17}
953};
025b0302 954
8f78d0e9
KR		 955static const struct selector_entry selector_table[] =
956{
4047ff1d
JL		 957 {"f", e_fsel},
958 {"l", e_lsel},
959 {"ld", e_ldsel},
960 {"lp", e_lpsel},
961 {"lr", e_lrsel},
962 {"ls", e_lssel},
963 {"lt", e_ltsel},
83b59013
JL		 964 {"n", e_nsel},
965 {"nl", e_nlsel},
966 {"nlr", e_nlrsel},
4047ff1d
JL		 967 {"p", e_psel},
968 {"r", e_rsel},
969 {"rd", e_rdsel},
970 {"rp", e_rpsel},
971 {"rr", e_rrsel},
972 {"rs", e_rssel},
973 {"rt", e_rtsel},
974 {"t", e_tsel},
8f78d0e9 975};
025b0302 976
8f78d0e9 977/* default space and subspace dictionaries */
025b0302 978
8f78d0e9
KR		 979#define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
980#define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
025b0302 981
8f78d0e9
KR		 982/* pre-defined subsegments (subspaces) for the HPPA. */
983#define SUBSEG_CODE 0
984#define SUBSEG_DATA 0
985#define SUBSEG_LIT 1
986#define SUBSEG_BSS 2
987#define SUBSEG_UNWIND 3
988#define SUBSEG_GDB_STRINGS 0
989#define SUBSEG_GDB_SYMBOLS 1
025b0302 990
8f78d0e9 991static struct default_subspace_dict pa_def_subspaces[] =
025b0302 992{
aa8b30ed
JL		 993 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_CODE},
994 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, ".data", SUBSEG_DATA},
995 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_LIT},
996 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, ".bss", SUBSEG_BSS},
31a385d1 997#ifdef OBJ_ELF
3315c7c7 998 {"$UNWIND$", 1, 1, 0, 0, 0, 0, 64, 0x2c, 0, 4, 0, 0, ".PARISC.unwind", SUBSEG_UNWIND},
31a385d1 999#endif
8f78d0e9
KR		 1000 {NULL, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1001};
025b0302 1002
8f78d0e9
KR		 1003static struct default_space_dict pa_def_spaces[] =
1004{
aa8b30ed
JL		 1005 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL, ".text"},
1006 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL, ".data"},
8f78d0e9
KR		 1007 {NULL, 0, 0, 0, 0, 0, ASEC_NULL, NULL}
1008};
025b0302 1009
8f78d0e9
KR		 1010/* Misc local definitions used by the assembler. */
1011
1012/* Return nonzero if the string pointed to by S potentially represents
1013 a right or left half of a FP register */
1014#define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1015#define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1016
1017/* These macros are used to maintain spaces/subspaces. */
1018#define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1019#define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
8f78d0e9 1020#define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
8f78d0e9 1021#define SPACE_NAME(space_chain) (space_chain)->sd_name
8f78d0e9 1022
47f45d66 1023#define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
8f78d0e9
KR		 1024#define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1025
48153d49
JL		 1026/* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1027 main loop after insertion. */
1028
1029#define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1030 { \
1031 ((OPCODE) |= (FIELD) << (START)); \
1032 continue; \
1033 }
1034
75c28b49 1035/* Simple range checking for FIELD againt HIGH and LOW bounds.
48153d49
JL		 1036 IGNORE is used to suppress the error message. */
1037
1038#define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1039 { \
1040 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1041 { \
1042 if (! IGNORE) \
1043 as_bad ("Field out of range [%d..%d] (%d).", (LOW), (HIGH), \
1044 (int) (FIELD));\
1045 break; \
1046 } \
1047 }
c5e9ccd0 1048
8f78d0e9
KR		 1049#define is_DP_relative(exp) \
1050 ((exp).X_op == O_subtract \
1051 && strcmp((exp).X_op_symbol->bsym->name, "$global$") == 0)
1052
1053#define is_PC_relative(exp) \
1054 ((exp).X_op == O_subtract \
1055 && strcmp((exp).X_op_symbol->bsym->name, "$PIC_pcrel$0") == 0)
1056
655f3ef4
JL		 1057/* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1058 always be able to reduce the expression to a constant, so we don't
1059 need real complex handling yet. */
1060#define is_complex(exp) \
1061 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1062
8f78d0e9
KR		 1063/* Actual functions to implement the PA specific code for the assembler. */
1064
60937ce7
JL		 1065/* Called before writing the object file. Make sure entry/exit and
1066 proc/procend pairs match. */
1067
1068void
1069pa_check_eof ()
1070{
1071 if (within_entry_exit)
1072 as_fatal ("Missing .exit\n");
1073
1074 if (within_procedure)
1075 as_fatal ("Missing .procend\n");
1076}
1077
1078/* Check to make sure we have a valid space and subspace. */
1079
1080static void
1081pa_check_current_space_and_subspace ()
1082{
1083 if (current_space == NULL)
1084 as_fatal ("Not in a space.\n");
1085
1086 if (current_subspace == NULL)
1087 as_fatal ("Not in a subspace.\n");
1088}
1089
8f78d0e9
KR		 1090/* Returns a pointer to the label_symbol_struct for the current space.
1091 or NULL if no label_symbol_struct exists for the current space. */
1092
1093static label_symbol_struct *
1094pa_get_label ()
1095{
1096 label_symbol_struct *label_chain;
3b9a72c5 1097 sd_chain_struct *space_chain = current_space;
025b0302 1098
8f78d0e9
KR		 1099 for (label_chain = label_symbols_rootp;
1100 label_chain;
1101 label_chain = label_chain->lss_next)
1102 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1103 return label_chain;
025b0302 1104
8f78d0e9
KR		 1105 return NULL;
1106}
025b0302 1107
8f78d0e9
KR		 1108/* Defines a label for the current space. If one is already defined,
1109 this function will replace it with the new label. */
025b0302 1110
8f78d0e9
KR		 1111void
1112pa_define_label (symbol)
1113 symbolS *symbol;
1114{
1115 label_symbol_struct *label_chain = pa_get_label ();
3b9a72c5 1116 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1117
1118 if (label_chain)
1119 label_chain->lss_label = symbol;
1120 else
1121 {
1122 /* Create a new label entry and add it to the head of the chain. */
1123 label_chain
1124 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1125 label_chain->lss_label = symbol;
1126 label_chain->lss_space = space_chain;
1127 label_chain->lss_next = NULL;
1128
1129 if (label_symbols_rootp)
1130 label_chain->lss_next = label_symbols_rootp;
1131
1132 label_symbols_rootp = label_chain;
1133 }
1134}
1135
1136/* Removes a label definition for the current space.
1137 If there is no label_symbol_struct entry, then no action is taken. */
1138
1139static void
1140pa_undefine_label ()
1141{
1142 label_symbol_struct *label_chain;
1143 label_symbol_struct *prev_label_chain = NULL;
3b9a72c5 1144 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1145
1146 for (label_chain = label_symbols_rootp;
1147 label_chain;
1148 label_chain = label_chain->lss_next)
1149 {
1150 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1151 {
1152 /* Remove the label from the chain and free its memory. */
1153 if (prev_label_chain)
1154 prev_label_chain->lss_next = label_chain->lss_next;
1155 else
1156 label_symbols_rootp = label_chain->lss_next;
1157
1158 free (label_chain);
1159 break;
1160 }
1161 prev_label_chain = label_chain;
1162 }
1163}
1164
1165
1166/* An HPPA-specific version of fix_new. This is required because the HPPA
1167 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1168 results in the creation of an instance of an hppa_fix_struct. An
1169 hppa_fix_struct stores the extra information along with a pointer to the
75c28b49 1170 original fixS. This is attached to the original fixup via the
aa8b30ed 1171 tc_fix_data field. */
8f78d0e9
KR		 1172
1173static void
1174fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
75c28b49 1175 r_type, r_field, r_format, arg_reloc, unwind_bits)
8f78d0e9
KR		 1176 fragS *frag;
1177 int where;
de3ffc7a 1178 int size;
8f78d0e9
KR		 1179 symbolS *add_symbol;
1180 long offset;
1181 expressionS *exp;
1182 int pcrel;
1183 bfd_reloc_code_real_type r_type;
f2eed884 1184 enum hppa_reloc_field_selector_type r_field;
8f78d0e9
KR		 1185 int r_format;
1186 long arg_reloc;
75c28b49 1187 int* unwind_bits;
8f78d0e9
KR		 1188{
1189 fixS *new_fix;
1190
1191 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
c5e9ccd0 1192 obstack_alloc (&notes, sizeof (struct hppa_fix_struct));
8f78d0e9
KR		 1193
1194 if (exp != NULL)
1195 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1196 else
1197 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
fb338f1d 1198 new_fix->tc_fix_data = (void *) hppa_fix;
8f78d0e9
KR		 1199 hppa_fix->fx_r_type = r_type;
1200 hppa_fix->fx_r_field = r_field;
1201 hppa_fix->fx_r_format = r_format;
1202 hppa_fix->fx_arg_reloc = arg_reloc;
fca59f9d 1203 hppa_fix->segment = now_seg;
75c28b49
JL		 1204#ifdef OBJ_SOM
1205 if (r_type == R_ENTRY || r_type == R_EXIT)
e67b3aa3 1206 new_fix->fx_offset = *unwind_bits;
ff852e11 1207#endif
25989392
JL		 1208
1209 /* foo-$global$ is used to access non-automatic storage. $global$
1210 is really just a marker and has served its purpose, so eliminate
1211 it now so as not to confuse write.c. */
81413fa2
JL		 1212 if (new_fix->fx_subsy
1213 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
25989392 1214 new_fix->fx_subsy = NULL;
025b0302
ME		 1215}
1216
1217/* Parse a .byte, .word, .long expression for the HPPA. Called by
1218 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1219
025b0302
ME		 1220void
1221parse_cons_expression_hppa (exp)
1222 expressionS *exp;
1223{
1224 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
5cf4cd1b 1225 expression (exp);
025b0302
ME		 1226}
1227
1228/* This fix_new is called by cons via TC_CONS_FIX_NEW.
1229 hppa_field_selector is set by the parse_cons_expression_hppa. */
1230
1231void
1232cons_fix_new_hppa (frag, where, size, exp)
8f78d0e9
KR		 1233 fragS *frag;
1234 int where;
1235 int size;
1236 expressionS *exp;
025b0302 1237{
4047ff1d 1238 unsigned int rel_type;
025b0302 1239
8fb99170 1240 /* Get a base relocation type. */
025b0302 1241 if (is_DP_relative (*exp))
4047ff1d 1242 rel_type = R_HPPA_GOTOFF;
655f3ef4 1243 else if (is_complex (*exp))
8fb99170 1244 rel_type = R_HPPA_COMPLEX;
025b0302 1245 else
4047ff1d 1246 rel_type = R_HPPA;
025b0302
ME		 1247
1248 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
8f78d0e9 1249 as_warn ("Invalid field selector. Assuming F%%.");
025b0302 1250
5cf4cd1b 1251 fix_new_hppa (frag, where, size,
4047ff1d 1252 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
75c28b49 1253 hppa_field_selector, 32, 0, NULL);
1cc248d2
JL		 1254
1255 /* Reset field selector to its default state. */
1256 hppa_field_selector = 0;
025b0302
ME		 1257}
1258
1259/* This function is called once, at assembler startup time. It should
1260 set up all the tables, etc. that the MD part of the assembler will need. */
8f78d0e9 1261
025b0302
ME		 1262void
1263md_begin ()
1264{
18c4f112 1265 const char *retval = NULL;
025b0302 1266 int lose = 0;
8f78d0e9 1267 unsigned int i = 0;
025b0302
ME		 1268
1269 last_call_info = NULL;
1270 call_info_root = NULL;
1271
4829cd65
JL		 1272 /* Set the default machine type. */
1273 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
1274 as_warn ("could not set architecture and machine");
1275
13925cef
JL		 1276 /* Folding of text and data segments fails miserably on the PA.
1277 Warn user and disable "-R" option. */
def66e24 1278 if (flag_readonly_data_in_text)
d56f45f5
JL		 1279 {
1280 as_warn ("-R option not supported on this target.");
def66e24 1281 flag_readonly_data_in_text = 0;
d56f45f5 1282 }
13925cef 1283
025b0302
ME		 1284 pa_spaces_begin ();
1285
1286 op_hash = hash_new ();
025b0302
ME		 1287
1288 while (i < NUMOPCODES)
1289 {
1290 const char *name = pa_opcodes[i].name;
c5e9ccd0 1291 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
8f78d0e9 1292 if (retval != NULL && *retval != '\0')
025b0302 1293 {
8f78d0e9 1294 as_fatal ("Internal error: can't hash `%s': %s\n", name, retval);
025b0302
ME		 1295 lose = 1;
1296 }
1297 do
1298 {
c5e9ccd0 1299 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
8f78d0e9 1300 != pa_opcodes[i].match)
025b0302
ME		 1301 {
1302 fprintf (stderr, "internal error: losing opcode: `%s' \"%s\"\n",
1303 pa_opcodes[i].name, pa_opcodes[i].args);
1304 lose = 1;
1305 }
1306 ++i;
1307 }
8f78d0e9 1308 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
025b0302
ME		 1309 }
1310
1311 if (lose)
1312 as_fatal ("Broken assembler. No assembly attempted.");
3b9a72c5
JL		 1313
1314 /* SOM will change text_section. To make sure we never put
1315 anything into the old one switch to the new one now. */
1316 subseg_set (text_section, 0);
8f78d0e9 1317
6868afe6 1318 dummy_symbol = symbol_find_or_make ("L$dummy");
fca59f9d 1319 S_SET_SEGMENT (dummy_symbol, text_section);
025b0302
ME		 1320}
1321
8f78d0e9 1322/* Assemble a single instruction storing it into a frag. */
025b0302
ME		 1323void
1324md_assemble (str)
1325 char *str;
1326{
8f78d0e9 1327 char *to;
025b0302 1328
8f78d0e9 1329 /* The had better be something to assemble. */
025b0302 1330 assert (str);
8f78d0e9 1331
4047ff1d
JL		 1332 /* If we are within a procedure definition, make sure we've
1333 defined a label for the procedure; handle case where the
75c28b49 1334 label was defined after the .PROC directive.
86066d06
JL		 1335
1336 Note there's not need to diddle with the segment or fragment
1337 for the label symbol in this case. We have already switched
1338 into the new $CODE$ subspace at this point. */
4047ff1d
JL		 1339 if (within_procedure && last_call_info->start_symbol == NULL)
1340 {
1341 label_symbol_struct *label_symbol = pa_get_label ();
1342
1343 if (label_symbol)
1344 {
1345 if (label_symbol->lss_label)
1346 {
1347 last_call_info->start_symbol = label_symbol->lss_label;
1348 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
86066d06
JL		 1349#ifdef OBJ_SOM
1350 /* Also handle allocation of a fixup to hold the unwind
1351 information when the label appears after the proc/procend. */
1352 if (within_entry_exit)
1353 {
1354 char *where = frag_more (0);
1355
1356 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
75c28b49 1357 NULL, (offsetT) 0, NULL,
86066d06 1358 0, R_HPPA_ENTRY, e_fsel, 0, 0,
75c28b49 1359 (int *)&last_call_info->ci_unwind.descriptor);
86066d06
JL		 1360 }
1361#endif
4047ff1d
JL		 1362 }
1363 else
1364 as_bad ("Missing function name for .PROC (corrupted label chain)");
1365 }
1366 else
1367 as_bad ("Missing function name for .PROC");
1368 }
1369
8f78d0e9 1370 /* Assemble the instruction. Results are saved into "the_insn". */
025b0302 1371 pa_ip (str);
025b0302 1372
8f78d0e9
KR		 1373 /* Get somewhere to put the assembled instrution. */
1374 to = frag_more (4);
025b0302 1375
8f78d0e9
KR		 1376 /* Output the opcode. */
1377 md_number_to_chars (to, the_insn.opcode, 4);
025b0302 1378
8f78d0e9 1379 /* If necessary output more stuff. */
aa8b30ed 1380 if (the_insn.reloc != R_HPPA_NONE)
8f78d0e9
KR		 1381 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1382 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1383 the_insn.reloc, the_insn.field_selector,
1384 the_insn.format, the_insn.arg_reloc, NULL);
8f78d0e9 1385}
025b0302 1386
8f78d0e9 1387/* Do the real work for assembling a single instruction. Store results
dd2f509f 1388 into the global "the_insn" variable. */
025b0302
ME		 1389
1390static void
1391pa_ip (str)
1392 char *str;
1393{
1394 char *error_message = "";
8f78d0e9 1395 char *s, c, *argstart, *name, *save_s;
025b0302 1396 const char *args;
025b0302
ME		 1397 int match = FALSE;
1398 int comma = 0;
48153d49
JL		 1399 int cmpltr, nullif, flag, cond, num;
1400 unsigned long opcode;
8f78d0e9 1401 struct pa_opcode *insn;
025b0302 1402
60937ce7
JL		 1403 /* We must have a valid space and subspace. */
1404 pa_check_current_space_and_subspace ();
1405
8f78d0e9 1406 /* Skip to something interesting. */
025b0302
ME		 1407 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1408 ;
8f78d0e9 1409
025b0302
ME		 1410 switch (*s)
1411 {
1412
1413 case '\0':
1414 break;
1415
1416 case ',':
1417 comma = 1;
1418
8f78d0e9 1419 /*FALLTHROUGH */
025b0302
ME		 1420
1421 case ' ':
1422 *s++ = '\0';
1423 break;
1424
1425 default:
460531da 1426 as_fatal ("Unknown opcode: `%s'", str);
025b0302
ME		 1427 }
1428
1429 save_s = str;
1430
8f78d0e9 1431 /* Convert everything into lower case. */
025b0302
ME		 1432 while (*save_s)
1433 {
1434 if (isupper (*save_s))
1435 *save_s = tolower (*save_s);
1436 save_s++;
1437 }
1438
8f78d0e9 1439 /* Look up the opcode in the has table. */
025b0302
ME		 1440 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1441 {
1442 as_bad ("Unknown opcode: `%s'", str);
1443 return;
1444 }
8f78d0e9 1445
025b0302
ME		 1446 if (comma)
1447 {
1448 *--s = ',';
1449 }
8f78d0e9
KR		 1450
1451 /* Mark the location where arguments for the instruction start, then
1452 start processing them. */
1453 argstart = s;
025b0302
ME		 1454 for (;;)
1455 {
8f78d0e9 1456 /* Do some initialization. */
025b0302
ME		 1457 opcode = insn->match;
1458 bzero (&the_insn, sizeof (the_insn));
8f78d0e9 1459
025b0302 1460 the_insn.reloc = R_HPPA_NONE;
8f78d0e9 1461
4829cd65
JL		 1462 /* If this instruction is specific to a particular architecture,
1463 then set a new architecture. */
1464 if (bfd_get_mach (stdoutput) < insn->arch)
1465 {
1466 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, insn->arch))
1467 as_warn ("could not update architecture and machine");
1468 }
1469
8f78d0e9
KR		 1470 /* Build the opcode, checking as we go to make
1471 sure that the operands match. */
025b0302
ME		 1472 for (args = insn->args;; ++args)
1473 {
025b0302
ME		 1474 switch (*args)
1475 {
1476
8f78d0e9
KR		 1477 /* End of arguments. */
1478 case '\0':
025b0302 1479 if (*s == '\0')
8f78d0e9 1480 match = TRUE;
025b0302
ME		 1481 break;
1482
1483 case '+':
1484 if (*s == '+')
1485 {
1486 ++s;
1487 continue;
1488 }
1489 if (*s == '-')
8f78d0e9 1490 continue;
025b0302
ME		 1491 break;
1492
8f78d0e9
KR		 1493 /* These must match exactly. */
1494 case '(':
025b0302
ME		 1495 case ')':
1496 case ',':
1497 case ' ':
1498 if (*s++ == *args)
1499 continue;
1500 break;
1501
8f78d0e9
KR		 1502 /* Handle a 5 bit register or control register field at 10. */
1503 case 'b':
1504 case '^':
48153d49
JL		 1505 num = pa_parse_number (&s, 0);
1506 CHECK_FIELD (num, 31, 0, 0);
1507 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 1508
1509 /* Handle a 5 bit register field at 15. */
1510 case 'x':
48153d49
JL		 1511 num = pa_parse_number (&s, 0);
1512 CHECK_FIELD (num, 31, 0, 0);
1513 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
5cf4cd1b 1514
8f78d0e9
KR		 1515 /* Handle a 5 bit register field at 31. */
1516 case 'y':
1517 case 't':
48153d49
JL		 1518 num = pa_parse_number (&s, 0);
1519 CHECK_FIELD (num, 31, 0, 0);
1520 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 1521
1522 /* Handle a 5 bit field length at 31. */
1523 case 'T':
48153d49
JL		 1524 num = pa_get_absolute_expression (&the_insn, &s);
1525 s = expr_end;
1526 CHECK_FIELD (num, 32, 1, 0);
1527 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
8f78d0e9
KR		 1528
1529 /* Handle a 5 bit immediate at 15. */
1530 case '5':
48153d49
JL		 1531 num = pa_get_absolute_expression (&the_insn, &s);
1532 s = expr_end;
1533 CHECK_FIELD (num, 15, -16, 0);
1534 low_sign_unext (num, 5, &num);
1535 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1536
48153d49
JL		 1537 /* Handle a 5 bit immediate at 31. */
1538 case 'V':
1539 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 1540 s = expr_end;
48153d49 1541 CHECK_FIELD (num, 15, -16, 0)
c5e9ccd0 1542 low_sign_unext (num, 5, &num);
48153d49
JL		 1543 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1544
1545 /* Handle an unsigned 5 bit immediate at 31. */
1546 case 'r':
1547 num = pa_get_absolute_expression (&the_insn, &s);
1548 s = expr_end;
1549 CHECK_FIELD (num, 31, 0, 0);
1550 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1551
1552 /* Handle an unsigned 5 bit immediate at 15. */
1553 case 'R':
1554 num = pa_get_absolute_expression (&the_insn, &s);
1555 s = expr_end;
1556 CHECK_FIELD (num, 31, 0, 0);
1557 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1558
8f78d0e9
KR		 1559 /* Handle a 2 bit space identifier at 17. */
1560 case 's':
48153d49
JL		 1561 num = pa_parse_number (&s, 0);
1562 CHECK_FIELD (num, 3, 0, 1);
1563 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
8f78d0e9
KR		 1564
1565 /* Handle a 3 bit space identifier at 18. */
1566 case 'S':
48153d49
JL		 1567 num = pa_parse_number (&s, 0);
1568 CHECK_FIELD (num, 7, 0, 1);
1569 dis_assemble_3 (num, &num);
1570 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 1571
1572 /* Handle a completer for an indexing load or store. */
1573 case 'c':
48153d49
JL		 1574 {
1575 int uu = 0;
1576 int m = 0;
1577 int i = 0;
1578 while (*s == ',' && i < 2)
1579 {
1580 s++;
1581 if (strncasecmp (s, "sm", 2) == 0)
1582 {
1583 uu = 1;
1584 m = 1;
1585 s++;
1586 i++;
1587 }
1588 else if (strncasecmp (s, "m", 1) == 0)
025b0302 1589 m = 1;
48153d49
JL		 1590 else if (strncasecmp (s, "s", 1) == 0)
1591 uu = 1;
1592 else
1593 as_bad ("Invalid Indexed Load Completer.");
1594 s++;
1595 i++;
1596 }
1597 if (i > 2)
1598 as_bad ("Invalid Indexed Load Completer Syntax.");
1599 opcode |= m << 5;
1600 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
1601 }
8f78d0e9
KR		 1602
1603 /* Handle a short load/store completer. */
1604 case 'C':
48153d49
JL		 1605 {
1606 int a = 0;
1607 int m = 0;
1608 if (*s == ',')
1609 {
1610 s++;
1611 if (strncasecmp (s, "ma", 2) == 0)
1612 {
1613 a = 0;
1614 m = 1;
1615 }
1616 else if (strncasecmp (s, "mb", 2) == 0)
1617 {
1618 a = 1;
1619 m = 1;
1620 }
1621 else
1622 as_bad ("Invalid Short Load/Store Completer.");
1623 s += 2;
1624 }
1625 opcode |= m << 5;
1626 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1627 }
8f78d0e9
KR		 1628
1629 /* Handle a stbys completer. */
1630 case 'Y':
48153d49
JL		 1631 {
1632 int a = 0;
1633 int m = 0;
1634 int i = 0;
1635 while (*s == ',' && i < 2)
1636 {
1637 s++;
1638 if (strncasecmp (s, "m", 1) == 0)
1639 m = 1;
1640 else if (strncasecmp (s, "b", 1) == 0)
1641 a = 0;
1642 else if (strncasecmp (s, "e", 1) == 0)
1643 a = 1;
1644 else
1645 as_bad ("Invalid Store Bytes Short Completer");
1646 s++;
1647 i++;
1648 }
1649 if (i > 2)
1650 as_bad ("Invalid Store Bytes Short Completer");
1651 opcode |= m << 5;
1652 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1653 }
8f78d0e9
KR		 1654
1655 /* Handle a non-negated compare/stubtract condition. */
1656 case '<':
5cf4cd1b 1657 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1658 if (cmpltr < 0)
1659 {
8f78d0e9 1660 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
025b0302
ME		 1661 cmpltr = 0;
1662 }
48153d49 1663 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1664
1665 /* Handle a negated or non-negated compare/subtract condition. */
1666 case '?':
025b0302 1667 save_s = s;
5cf4cd1b 1668 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1669 if (cmpltr < 0)
1670 {
1671 s = save_s;
5cf4cd1b 1672 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1673 if (cmpltr < 0)
1674 {
8f78d0e9 1675 as_bad ("Invalid Compare/Subtract Condition.");
025b0302
ME		 1676 cmpltr = 0;
1677 }
1678 else
1679 {
8f78d0e9
KR		 1680 /* Negated condition requires an opcode change. */
1681 opcode |= 1 << 27;
025b0302
ME		 1682 }
1683 }
48153d49 1684 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9 1685
e03095c9 1686 /* Handle non-negated add condition. */
8f78d0e9 1687 case '!':
e03095c9
JL		 1688 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
1689 if (cmpltr < 0)
1690 {
1691 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
1692 cmpltr = 0;
1693 }
1694 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
1695
1696 /* Handle a negated or non-negated add condition. */
1697 case '@':
025b0302 1698 save_s = s;
5cf4cd1b 1699 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
025b0302
ME		 1700 if (cmpltr < 0)
1701 {
1702 s = save_s;
5cf4cd1b 1703 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
025b0302
ME		 1704 if (cmpltr < 0)
1705 {
8f78d0e9 1706 as_bad ("Invalid Compare/Subtract Condition");
025b0302
ME		 1707 cmpltr = 0;
1708 }
1709 else
1710 {
8f78d0e9
KR		 1711 /* Negated condition requires an opcode change. */
1712 opcode |= 1 << 27;
025b0302
ME		 1713 }
1714 }
48153d49 1715 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1716
1717 /* Handle a compare/subtract condition. */
1718 case 'a':
025b0302 1719 cmpltr = 0;
8f78d0e9 1720 flag = 0;
025b0302
ME		 1721 save_s = s;
1722 if (*s == ',')
1723 {
5cf4cd1b 1724 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 0);
025b0302
ME		 1725 if (cmpltr < 0)
1726 {
8f78d0e9 1727 flag = 1;
025b0302 1728 s = save_s;
5cf4cd1b 1729 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 0);
025b0302
ME		 1730 if (cmpltr < 0)
1731 {
8f78d0e9 1732 as_bad ("Invalid Compare/Subtract Condition");
025b0302
ME		 1733 }
1734 }
1735 }
1736 opcode |= cmpltr << 13;
48153d49 1737 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1738
1739 /* Handle a non-negated add condition. */
1740 case 'd':
025b0302
ME		 1741 cmpltr = 0;
1742 nullif = 0;
1743 flag = 0;
1744 if (*s == ',')
1745 {
1746 s++;
1747 name = s;
1748 while (*s != ',' && *s != ' ' && *s != '\t')
1749 s += 1;
1750 c = *s;
1751 *s = 0x00;
1752 if (strcmp (name, "=") == 0)
8f78d0e9 1753 cmpltr = 1;
025b0302 1754 else if (strcmp (name, "<") == 0)
8f78d0e9 1755 cmpltr = 2;
025b0302 1756 else if (strcmp (name, "<=") == 0)
8f78d0e9 1757 cmpltr = 3;
025b0302 1758 else if (strcasecmp (name, "nuv") == 0)
8f78d0e9 1759 cmpltr = 4;
025b0302 1760 else if (strcasecmp (name, "znv") == 0)
8f78d0e9 1761 cmpltr = 5;
025b0302 1762 else if (strcasecmp (name, "sv") == 0)
8f78d0e9 1763 cmpltr = 6;
025b0302 1764 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1765 cmpltr = 7;
025b0302 1766 else if (strcasecmp (name, "n") == 0)
8f78d0e9 1767 nullif = 1;
025b0302
ME		 1768 else if (strcasecmp (name, "tr") == 0)
1769 {
1770 cmpltr = 0;
1771 flag = 1;
1772 }
4047ff1d 1773 else if (strcmp (name, "<>") == 0)
025b0302
ME		 1774 {
1775 cmpltr = 1;
1776 flag = 1;
1777 }
4047ff1d 1778 else if (strcmp (name, ">=") == 0)
025b0302
ME		 1779 {
1780 cmpltr = 2;
1781 flag = 1;
1782 }
4047ff1d 1783 else if (strcmp (name, ">") == 0)
025b0302
ME		 1784 {
1785 cmpltr = 3;
1786 flag = 1;
1787 }
1788 else if (strcasecmp (name, "uv") == 0)
1789 {
1790 cmpltr = 4;
1791 flag = 1;
1792 }
1793 else if (strcasecmp (name, "vnz") == 0)
1794 {
1795 cmpltr = 5;
1796 flag = 1;
1797 }
1798 else if (strcasecmp (name, "nsv") == 0)
1799 {
1800 cmpltr = 6;
1801 flag = 1;
1802 }
1803 else if (strcasecmp (name, "ev") == 0)
1804 {
1805 cmpltr = 7;
1806 flag = 1;
1807 }
1808 else
8f78d0e9 1809 as_bad ("Invalid Add Condition: %s", name);
025b0302
ME		 1810 *s = c;
1811 }
1812 nullif = pa_parse_nullif (&s);
1813 opcode |= nullif << 1;
1814 opcode |= cmpltr << 13;
48153d49 1815 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9 1816
48153d49 1817 /* HANDLE a logical instruction condition. */
8f78d0e9 1818 case '&':
025b0302 1819 cmpltr = 0;
8f78d0e9 1820 flag = 0;
025b0302
ME		 1821 if (*s == ',')
1822 {
1823 s++;
1824 name = s;
1825 while (*s != ',' && *s != ' ' && *s != '\t')
1826 s += 1;
1827 c = *s;
1828 *s = 0x00;
1829 if (strcmp (name, "=") == 0)
8f78d0e9 1830 cmpltr = 1;
025b0302 1831 else if (strcmp (name, "<") == 0)
8f78d0e9 1832 cmpltr = 2;
025b0302 1833 else if (strcmp (name, "<=") == 0)
8f78d0e9 1834 cmpltr = 3;
025b0302 1835 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1836 cmpltr = 7;
025b0302
ME		 1837 else if (strcasecmp (name, "tr") == 0)
1838 {
1839 cmpltr = 0;
8f78d0e9 1840 flag = 1;
025b0302
ME		 1841 }
1842 else if (strcmp (name, "<>") == 0)
1843 {
1844 cmpltr = 1;
8f78d0e9 1845 flag = 1;
025b0302
ME		 1846 }
1847 else if (strcmp (name, ">=") == 0)
1848 {
1849 cmpltr = 2;
8f78d0e9 1850 flag = 1;
025b0302
ME		 1851 }
1852 else if (strcmp (name, ">") == 0)
1853 {
1854 cmpltr = 3;
8f78d0e9 1855 flag = 1;
025b0302
ME		 1856 }
1857 else if (strcasecmp (name, "ev") == 0)
1858 {
1859 cmpltr = 7;
8f78d0e9 1860 flag = 1;
025b0302
ME		 1861 }
1862 else
8f78d0e9 1863 as_bad ("Invalid Logical Instruction Condition.");
025b0302
ME		 1864 *s = c;
1865 }
1866 opcode |= cmpltr << 13;
48153d49 1867 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1868
1869 /* Handle a unit instruction condition. */
1870 case 'U':
025b0302 1871 cmpltr = 0;
8f78d0e9 1872 flag = 0;
025b0302
ME		 1873 if (*s == ',')
1874 {
1875 s++;
1876 if (strncasecmp (s, "sbz", 3) == 0)
1877 {
1878 cmpltr = 2;
1879 s += 3;
1880 }
1881 else if (strncasecmp (s, "shz", 3) == 0)
1882 {
1883 cmpltr = 3;
1884 s += 3;
1885 }
1886 else if (strncasecmp (s, "sdc", 3) == 0)
1887 {
1888 cmpltr = 4;
1889 s += 3;
1890 }
1891 else if (strncasecmp (s, "sbc", 3) == 0)
1892 {
1893 cmpltr = 6;
1894 s += 3;
1895 }
1896 else if (strncasecmp (s, "shc", 3) == 0)
1897 {
1898 cmpltr = 7;
1899 s += 3;
1900 }
1901 else if (strncasecmp (s, "tr", 2) == 0)
1902 {
1903 cmpltr = 0;
8f78d0e9 1904 flag = 1;
025b0302
ME		 1905 s += 2;
1906 }
1907 else if (strncasecmp (s, "nbz", 3) == 0)
1908 {
1909 cmpltr = 2;
8f78d0e9 1910 flag = 1;
025b0302
ME		 1911 s += 3;
1912 }
1913 else if (strncasecmp (s, "nhz", 3) == 0)
1914 {
1915 cmpltr = 3;
8f78d0e9 1916 flag = 1;
025b0302
ME		 1917 s += 3;
1918 }
1919 else if (strncasecmp (s, "ndc", 3) == 0)
1920 {
1921 cmpltr = 4;
8f78d0e9 1922 flag = 1;
025b0302
ME		 1923 s += 3;
1924 }
1925 else if (strncasecmp (s, "nbc", 3) == 0)
1926 {
1927 cmpltr = 6;
8f78d0e9 1928 flag = 1;
025b0302
ME		 1929 s += 3;
1930 }
1931 else if (strncasecmp (s, "nhc", 3) == 0)
1932 {
1933 cmpltr = 7;
8f78d0e9 1934 flag = 1;
025b0302
ME		 1935 s += 3;
1936 }
1937 else
8f78d0e9 1938 as_bad ("Invalid Logical Instruction Condition.");
025b0302
ME		 1939 }
1940 opcode |= cmpltr << 13;
48153d49 1941 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1942
1943 /* Handle a shift/extract/deposit condition. */
1944 case '|':
1945 case '>':
025b0302
ME		 1946 cmpltr = 0;
1947 if (*s == ',')
1948 {
8f78d0e9 1949 save_s = s++;
025b0302
ME		 1950 name = s;
1951 while (*s != ',' && *s != ' ' && *s != '\t')
1952 s += 1;
1953 c = *s;
1954 *s = 0x00;
1955 if (strcmp (name, "=") == 0)
8f78d0e9 1956 cmpltr = 1;
025b0302 1957 else if (strcmp (name, "<") == 0)
8f78d0e9 1958 cmpltr = 2;
025b0302 1959 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1960 cmpltr = 3;
025b0302 1961 else if (strcasecmp (name, "tr") == 0)
8f78d0e9 1962 cmpltr = 4;
025b0302 1963 else if (strcmp (name, "<>") == 0)
8f78d0e9 1964 cmpltr = 5;
025b0302 1965 else if (strcmp (name, ">=") == 0)
8f78d0e9 1966 cmpltr = 6;
025b0302 1967 else if (strcasecmp (name, "ev") == 0)
8f78d0e9 1968 cmpltr = 7;
75c28b49 1969 /* Handle movb,n. Put things back the way they were.
5cf4cd1b
KR		 1970 This includes moving s back to where it started. */
1971 else if (strcasecmp (name, "n") == 0 && *args == '|')
1972 {
1973 *s = c;
1974 s = save_s;
1975 continue;
1976 }
025b0302 1977 else
8f78d0e9 1978 as_bad ("Invalid Shift/Extract/Deposit Condition.");
025b0302
ME		 1979 *s = c;
1980 }
48153d49 1981 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1982
1983 /* Handle bvb and bb conditions. */
1984 case '~':
025b0302
ME		 1985 cmpltr = 0;
1986 if (*s == ',')
1987 {
1988 s++;
1989 if (strncmp (s, "<", 1) == 0)
1990 {
1991 cmpltr = 2;
1992 s++;
1993 }
1994 else if (strncmp (s, ">=", 2) == 0)
1995 {
1996 cmpltr = 6;
1997 s += 2;
1998 }
1999 else
8f78d0e9 2000 as_bad ("Invalid Bit Branch Condition: %c", *s);
025b0302 2001 }
48153d49 2002 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9 2003
48153d49
JL		 2004 /* Handle a system control completer. */
2005 case 'Z':
2006 if (*s == ',' && (*(s + 1) == 'm' || *(s + 1) == 'M'))
025b0302 2007 {
48153d49
JL		 2008 flag = 1;
2009 s += 2;
025b0302 2010 }
48153d49
JL		 2011 else
2012 flag = 0;
8f78d0e9 2013
48153d49
JL		 2014 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
2015
2016 /* Handle a nullification completer for branch instructions. */
2017 case 'n':
2018 nullif = pa_parse_nullif (&s);
2019 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
8f78d0e9 2020
d0286a21
JL		 2021 /* Handle a nullification completer for copr and spop insns. */
2022 case 'N':
2023 nullif = pa_parse_nullif (&s);
2024 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2025
8f78d0e9
KR		 2026 /* Handle a 11 bit immediate at 31. */
2027 case 'i':
2028 the_insn.field_selector = pa_chk_field_selector (&s);
2029 get_expression (s);
48153d49 2030 s = expr_end;
5cf4cd1b 2031 if (the_insn.exp.X_op == O_constant)
025b0302 2032 {
48153d49
JL		 2033 num = evaluate_absolute (&the_insn);
2034 CHECK_FIELD (num, 1023, -1024, 0);
2035 low_sign_unext (num, 11, &num);
2036 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2037 }
2038 else
2039 {
025b0302
ME		 2040 if (is_DP_relative (the_insn.exp))
2041 the_insn.reloc = R_HPPA_GOTOFF;
2042 else if (is_PC_relative (the_insn.exp))
2043 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2044 else
2045 the_insn.reloc = R_HPPA;
2046 the_insn.format = 11;
48153d49 2047 continue;
025b0302 2048 }
8f78d0e9
KR		 2049
2050 /* Handle a 14 bit immediate at 31. */
2051 case 'j':
025b0302 2052 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2053 get_expression (s);
48153d49 2054 s = expr_end;
5cf4cd1b 2055 if (the_insn.exp.X_op == O_constant)
025b0302 2056 {
48153d49
JL		 2057 num = evaluate_absolute (&the_insn);
2058 CHECK_FIELD (num, 8191, -8192, 0);
2059 low_sign_unext (num, 14, &num);
2060 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2061 }
2062 else
2063 {
2064 if (is_DP_relative (the_insn.exp))
2065 the_insn.reloc = R_HPPA_GOTOFF;
2066 else if (is_PC_relative (the_insn.exp))
2067 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2068 else
2069 the_insn.reloc = R_HPPA;
2070 the_insn.format = 14;
48153d49 2071 continue;
025b0302 2072 }
025b0302 2073
8f78d0e9
KR		 2074 /* Handle a 21 bit immediate at 31. */
2075 case 'k':
2076 the_insn.field_selector = pa_chk_field_selector (&s);
2077 get_expression (s);
48153d49 2078 s = expr_end;
5cf4cd1b 2079 if (the_insn.exp.X_op == O_constant)
025b0302 2080 {
48153d49 2081 num = evaluate_absolute (&the_insn);
c5e9ccd0 2082 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
48153d49
JL		 2083 dis_assemble_21 (num, &num);
2084 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2085 }
2086 else
2087 {
025b0302
ME		 2088 if (is_DP_relative (the_insn.exp))
2089 the_insn.reloc = R_HPPA_GOTOFF;
2090 else if (is_PC_relative (the_insn.exp))
2091 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2092 else
2093 the_insn.reloc = R_HPPA;
2094 the_insn.format = 21;
48153d49 2095 continue;
025b0302 2096 }
8f78d0e9
KR		 2097
2098 /* Handle a 12 bit branch displacement. */
2099 case 'w':
2100 the_insn.field_selector = pa_chk_field_selector (&s);
2101 get_expression (s);
48153d49 2102 s = expr_end;
025b0302 2103 the_insn.pcrel = 1;
48153d49 2104 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
025b0302
ME		 2105 {
2106 unsigned int w1, w, result;
2107
48153d49
JL		 2108 num = evaluate_absolute (&the_insn);
2109 if (num % 4)
2110 {
2111 as_bad ("Branch to unaligned address");
2112 break;
2113 }
83b59013 2114 CHECK_FIELD (num, 8199, -8184, 0);
48153d49 2115 sign_unext ((num - 8) >> 2, 12, &result);
025b0302 2116 dis_assemble_12 (result, &w1, &w);
48153d49 2117 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
025b0302
ME		 2118 }
2119 else
2120 {
3315c7c7 2121 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2122 the_insn.format = 12;
2123 the_insn.arg_reloc = last_call_desc.arg_reloc;
8f78d0e9 2124 bzero (&last_call_desc, sizeof (struct call_desc));
48153d49
JL		 2125 s = expr_end;
2126 continue;
025b0302 2127 }
8f78d0e9
KR		 2128
2129 /* Handle a 17 bit branch displacement. */
2130 case 'W':
025b0302 2131 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2132 get_expression (s);
48153d49 2133 s = expr_end;
025b0302 2134 the_insn.pcrel = 1;
c5e9ccd0 2135 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2136 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2137 "L$0\001"))
025b0302 2138 {
48153d49 2139 unsigned int w2, w1, w, result;
025b0302 2140
48153d49
JL		 2141 num = evaluate_absolute (&the_insn);
2142 if (num % 4)
025b0302 2143 {
48153d49
JL		 2144 as_bad ("Branch to unaligned address");
2145 break;
025b0302 2146 }
48153d49
JL		 2147 CHECK_FIELD (num, 262143, -262144, 0);
2148
2149 if (the_insn.exp.X_add_symbol)
2150 num -= 8;
2151
2152 sign_unext (num >> 2, 17, &result);
2153 dis_assemble_17 (result, &w1, &w2, &w);
2154 INSERT_FIELD_AND_CONTINUE (opcode,
c5e9ccd0 2155 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2156 }
2157 else
2158 {
3315c7c7 2159 the_insn.reloc = R_HPPA_PCREL_CALL;
48153d49
JL		 2160 the_insn.format = 17;
2161 the_insn.arg_reloc = last_call_desc.arg_reloc;
2162 bzero (&last_call_desc, sizeof (struct call_desc));
2163 continue;
025b0302 2164 }
8f78d0e9
KR		 2165
2166 /* Handle an absolute 17 bit branch target. */
2167 case 'z':
025b0302 2168 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2169 get_expression (s);
48153d49 2170 s = expr_end;
025b0302 2171 the_insn.pcrel = 0;
c5e9ccd0 2172 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2173 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2174 "L$0\001"))
025b0302 2175 {
48153d49 2176 unsigned int w2, w1, w, result;
c5e9ccd0 2177
48153d49
JL		 2178 num = evaluate_absolute (&the_insn);
2179 if (num % 4)
025b0302 2180 {
48153d49
JL		 2181 as_bad ("Branch to unaligned address");
2182 break;
025b0302 2183 }
48153d49
JL		 2184 CHECK_FIELD (num, 262143, -262144, 0);
2185
2186 if (the_insn.exp.X_add_symbol)
2187 num -= 8;
2188
2189 sign_unext (num >> 2, 17, &result);
2190 dis_assemble_17 (result, &w1, &w2, &w);
c5e9ccd0
JL		 2191 INSERT_FIELD_AND_CONTINUE (opcode,
2192 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2193 }
2194 else
2195 {
44e8d616 2196 the_insn.reloc = R_HPPA_ABS_CALL;
48153d49 2197 the_insn.format = 17;
2c23d22b
JL		 2198 the_insn.arg_reloc = last_call_desc.arg_reloc;
2199 bzero (&last_call_desc, sizeof (struct call_desc));
48153d49 2200 continue;
025b0302 2201 }
8f78d0e9
KR		 2202
2203 /* Handle a 5 bit shift count at 26. */
2204 case 'p':
48153d49 2205 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2206 s = expr_end;
48153d49
JL		 2207 CHECK_FIELD (num, 31, 0, 0);
2208 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
8f78d0e9
KR		 2209
2210 /* Handle a 5 bit bit position at 26. */
2211 case 'P':
48153d49 2212 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2213 s = expr_end;
48153d49
JL		 2214 CHECK_FIELD (num, 31, 0, 0);
2215 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
8f78d0e9
KR		 2216
2217 /* Handle a 5 bit immediate at 10. */
2218 case 'Q':
48153d49 2219 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2220 s = expr_end;
48153d49
JL		 2221 CHECK_FIELD (num, 31, 0, 0);
2222 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 2223
2224 /* Handle a 13 bit immediate at 18. */
2225 case 'A':
48153d49 2226 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2227 s = expr_end;
3315c7c7 2228 CHECK_FIELD (num, 8191, 0, 0);
48153d49 2229 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 2230
2231 /* Handle a 26 bit immediate at 31. */
2232 case 'D':
48153d49 2233 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2234 s = expr_end;
48153d49 2235 CHECK_FIELD (num, 671108864, 0, 0);
b4682e51 2236 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 2237
2238 /* Handle a 3 bit SFU identifier at 25. */
2239 case 'f':
51517966
JL		 2240 if (*s++ != ',')
2241 as_bad ("Invalid SFU identifier");
48153d49
JL		 2242 num = pa_get_absolute_expression (&the_insn, &s);
2243 s = expr_end;
2244 CHECK_FIELD (num, 7, 0, 0);
2245 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
8f78d0e9 2246
d0286a21 2247 /* Handle a 20 bit SOP field for spop0. */
8f78d0e9 2248 case 'O':
d0286a21 2249 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2250 s = expr_end;
d0286a21
JL		 2251 CHECK_FIELD (num, 1048575, 0, 0);
2252 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
2253 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2254
2255 /* Handle a 15bit SOP field for spop1. */
2256 case 'o':
2257 num = pa_get_absolute_expression (&the_insn, &s);
2258 s = expr_end;
2259 CHECK_FIELD (num, 32767, 0, 0);
2260 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
2261
2262 /* Handle a 10bit SOP field for spop3. */
2263 case '0':
2264 num = pa_get_absolute_expression (&the_insn, &s);
2265 s = expr_end;
2266 CHECK_FIELD (num, 1023, 0, 0);
2267 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
2268 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2269
2270 /* Handle a 15 bit SOP field for spop2. */
2271 case '1':
2272 num = pa_get_absolute_expression (&the_insn, &s);
2273 s = expr_end;
2274 CHECK_FIELD (num, 32767, 0, 0);
2275 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
2276 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2277
2278 /* Handle a 3-bit co-processor ID field. */
2279 case 'u':
51517966
JL		 2280 if (*s++ != ',')
2281 as_bad ("Invalid COPR identifier");
d0286a21
JL		 2282 num = pa_get_absolute_expression (&the_insn, &s);
2283 s = expr_end;
2284 CHECK_FIELD (num, 7, 0, 0);
2285 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2286
2287 /* Handle a 22bit SOP field for copr. */
2288 case '2':
2289 num = pa_get_absolute_expression (&the_insn, &s);
2290 s = expr_end;
2291 CHECK_FIELD (num, 4194303, 0, 0);
2292 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
2293 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 2294
2295 /* Handle a source FP operand format completer. */
2296 case 'F':
2297 flag = pa_parse_fp_format (&s);
8f78d0e9 2298 the_insn.fpof1 = flag;
48153d49 2299 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
8f78d0e9
KR		 2300
2301 /* Handle a destination FP operand format completer. */
2302 case 'G':
8f78d0e9
KR		 2303 /* pa_parse_format needs the ',' prefix. */
2304 s--;
2305 flag = pa_parse_fp_format (&s);
8f78d0e9 2306 the_insn.fpof2 = flag;
48153d49 2307 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
8f78d0e9
KR		 2308
2309 /* Handle FP compare conditions. */
2310 case 'M':
025b0302 2311 cond = pa_parse_fp_cmp_cond (&s);
48153d49 2312 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
025b0302 2313
8f78d0e9
KR		 2314 /* Handle L/R register halves like 't'. */
2315 case 'v':
025b0302 2316 {
4829cd65 2317 struct pa_11_fp_reg_struct result;
025b0302 2318
8f78d0e9 2319 pa_parse_number (&s, &result);
48153d49
JL		 2320 CHECK_FIELD (result.number_part, 31, 0, 0);
2321 opcode |= result.number_part;
025b0302 2322
48153d49
JL		 2323 /* 0x30 opcodes are FP arithmetic operation opcodes
2324 and need to be turned into 0x38 opcodes. This
2325 is not necessary for loads/stores. */
4829cd65 2326 if (need_pa11_opcode (&the_insn, &result)
48153d49
JL		 2327 && ((opcode & 0xfc000000) == 0x30000000))
2328 opcode |= 1 << 27;
2329
2330 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
025b0302 2331 }
8f78d0e9
KR		 2332
2333 /* Handle L/R register halves like 'b'. */
2334 case 'E':
025b0302 2335 {
4829cd65 2336 struct pa_11_fp_reg_struct result;
025b0302 2337
8f78d0e9 2338 pa_parse_number (&s, &result);
48153d49
JL		 2339 CHECK_FIELD (result.number_part, 31, 0, 0);
2340 opcode |= result.number_part << 21;
4829cd65 2341 if (need_pa11_opcode (&the_insn, &result))
025b0302 2342 {
48153d49
JL		 2343 opcode |= (result.l_r_select & 1) << 7;
2344 opcode |= 1 << 27;
025b0302 2345 }
48153d49 2346 continue;
025b0302 2347 }
025b0302 2348
8f78d0e9
KR		 2349 /* Handle L/R register halves like 'x'. */
2350 case 'X':
025b0302 2351 {
4829cd65 2352 struct pa_11_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 & 0x1f) << 16;
4829cd65 2357 if (need_pa11_opcode (&the_insn, &result))
025b0302 2358 {
48153d49
JL		 2359 opcode |= (result.l_r_select & 1) << 12;
2360 opcode |= 1 << 27;
025b0302 2361 }
48153d49 2362 continue;
025b0302 2363 }
025b0302 2364
8f78d0e9
KR		 2365 /* Handle a 5 bit register field at 10. */
2366 case '4':
025b0302 2367 {
4829cd65 2368 struct pa_11_fp_reg_struct result;
75c28b49 2369
48153d49
JL		 2370 pa_parse_number (&s, &result);
2371 CHECK_FIELD (result.number_part, 31, 0, 0);
2372 if (the_insn.fpof1 == SGL)
025b0302 2373 {
4ff6f92a
JL		 2374 if (result.number_part < 16)
2375 {
2376 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2377 break;
2378 }
2379
48153d49
JL		 2380 result.number_part &= 0xF;
2381 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2382 }
48153d49 2383 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
025b0302 2384 }
025b0302 2385
8f78d0e9
KR		 2386 /* Handle a 5 bit register field at 15. */
2387 case '6':
025b0302 2388 {
4829cd65 2389 struct pa_11_fp_reg_struct result;
025b0302 2390
48153d49
JL		 2391 pa_parse_number (&s, &result);
2392 CHECK_FIELD (result.number_part, 31, 0, 0);
2393 if (the_insn.fpof1 == SGL)
025b0302 2394 {
4ff6f92a
JL		 2395 if (result.number_part < 16)
2396 {
2397 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2398 break;
2399 }
48153d49
JL		 2400 result.number_part &= 0xF;
2401 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2402 }
48153d49 2403 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
025b0302 2404 }
025b0302 2405
8f78d0e9
KR		 2406 /* Handle a 5 bit register field at 31. */
2407 case '7':
025b0302 2408 {
4829cd65 2409 struct pa_11_fp_reg_struct result;
025b0302 2410
48153d49
JL		 2411 pa_parse_number (&s, &result);
2412 CHECK_FIELD (result.number_part, 31, 0, 0);
2413 if (the_insn.fpof1 == SGL)
025b0302 2414 {
4ff6f92a
JL		 2415 if (result.number_part < 16)
2416 {
2417 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2418 break;
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 2428 {
4829cd65 2429 struct pa_11_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 {
4ff6f92a
JL		 2435 if (result.number_part < 16)
2436 {
2437 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2438 break;
2439 }
48153d49
JL		 2440 result.number_part &= 0xF;
2441 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2442 }
48153d49 2443 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
025b0302 2444 }
025b0302 2445
8f78d0e9
KR		 2446 /* Handle a 5 bit register field at 25. */
2447 case '9':
025b0302 2448 {
4829cd65 2449 struct pa_11_fp_reg_struct result;
025b0302 2450
48153d49
JL		 2451 pa_parse_number (&s, &result);
2452 CHECK_FIELD (result.number_part, 31, 0, 0);
2453 if (the_insn.fpof1 == SGL)
025b0302 2454 {
4ff6f92a
JL		 2455 if (result.number_part < 16)
2456 {
2457 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2458 break;
2459 }
48153d49
JL		 2460 result.number_part &= 0xF;
2461 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2462 }
48153d49 2463 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
025b0302 2464 }
025b0302 2465
8f78d0e9
KR		 2466 /* Handle a floating point operand format at 26.
2467 Only allows single and double precision. */
2468 case 'H':
2469 flag = pa_parse_fp_format (&s);
2470 switch (flag)
025b0302
ME		 2471 {
2472 case SGL:
2473 opcode |= 0x20;
2474 case DBL:
8f78d0e9 2475 the_insn.fpof1 = flag;
025b0302
ME		 2476 continue;
2477
2478 case QUAD:
2479 case ILLEGAL_FMT:
2480 default:
8f78d0e9 2481 as_bad ("Invalid Floating Point Operand Format.");
025b0302
ME		 2482 }
2483 break;
2484
2485 default:
2486 abort ();
2487 }
2488 break;
2489 }
892a3ff1 2490
8f78d0e9 2491 /* Check if the args matched. */
025b0302
ME		 2492 if (match == FALSE)
2493 {
025b0302
ME		 2494 if (&insn[1] - pa_opcodes < NUMOPCODES
2495 && !strcmp (insn->name, insn[1].name))
2496 {
2497 ++insn;
8f78d0e9 2498 s = argstart;
025b0302
ME		 2499 continue;
2500 }
2501 else
2502 {
8f78d0e9 2503 as_bad ("Invalid operands %s", error_message);
025b0302
ME		 2504 return;
2505 }
2506 }
2507 break;
2508 }
2509
2510 the_insn.opcode = opcode;
025b0302
ME		 2511}
2512
8f78d0e9 2513/* Turn a string in input_line_pointer into a floating point constant of type
025b0302 2514 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
8f78d0e9 2515 emitted is stored in *sizeP . An error message or NULL is returned. */
025b0302 2516
025b0302
ME		 2517#define MAX_LITTLENUMS 6
2518
2519char *
2520md_atof (type, litP, sizeP)
2521 char type;
2522 char *litP;
2523 int *sizeP;
2524{
2525 int prec;
2526 LITTLENUM_TYPE words[MAX_LITTLENUMS];
2527 LITTLENUM_TYPE *wordP;
2528 char *t;
025b0302
ME		 2529
2530 switch (type)
2531 {
2532
2533 case 'f':
2534 case 'F':
2535 case 's':
2536 case 'S':
2537 prec = 2;
2538 break;
2539
2540 case 'd':
2541 case 'D':
2542 case 'r':
2543 case 'R':
2544 prec = 4;
2545 break;
2546
2547 case 'x':
2548 case 'X':
2549 prec = 6;
2550 break;
2551
2552 case 'p':
2553 case 'P':
2554 prec = 6;
2555 break;
2556
2557 default:
2558 *sizeP = 0;
2559 return "Bad call to MD_ATOF()";
2560 }
2561 t = atof_ieee (input_line_pointer, type, words);
2562 if (t)
2563 input_line_pointer = t;
2564 *sizeP = prec * sizeof (LITTLENUM_TYPE);
2565 for (wordP = words; prec--;)
2566 {
8f78d0e9 2567 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
025b0302
ME		 2568 litP += sizeof (LITTLENUM_TYPE);
2569 }
aa8b30ed 2570 return NULL;
025b0302
ME		 2571}
2572
8f78d0e9
KR		 2573/* Write out big-endian. */
2574
025b0302
ME		 2575void
2576md_number_to_chars (buf, val, n)
2577 char *buf;
2578 valueT val;
2579 int n;
2580{
bfbfba45 2581 number_to_chars_bigendian (buf, val, n);
025b0302
ME		 2582}
2583
025b0302 2584/* Translate internal representation of relocation info to BFD target
62f0841b 2585 format. */
8f78d0e9 2586
025b0302
ME		 2587arelent **
2588tc_gen_reloc (section, fixp)
2589 asection *section;
2590 fixS *fixp;
2591{
2592 arelent *reloc;
fb338f1d 2593 struct hppa_fix_struct *hppa_fixp;
025b0302 2594 bfd_reloc_code_real_type code;
025b0302
ME		 2595 static arelent *no_relocs = NULL;
2596 arelent **relocs;
2597 bfd_reloc_code_real_type **codes;
2598 int n_relocs;
2599 int i;
2600
fb338f1d 2601 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
025b0302
ME		 2602 if (fixp->fx_addsy == 0)
2603 return &no_relocs;
2604 assert (hppa_fixp != 0);
2605 assert (section != 0);
2606
025b0302
ME		 2607 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent));
2608 assert (reloc != 0);
2609
2610 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
907f11fe 2611 codes = (bfd_reloc_code_real_type **) hppa_gen_reloc_type (stdoutput,
aa8b30ed
JL		 2612 fixp->fx_r_type,
2613 hppa_fixp->fx_r_format,
249c7415
JL		 2614 hppa_fixp->fx_r_field,
2615 fixp->fx_subsy != NULL);
025b0302
ME		 2616
2617 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
2618 ;
2619
8f78d0e9
KR		 2620 relocs = (arelent **)
2621 bfd_alloc_by_size_t (stdoutput, sizeof (arelent *) * n_relocs + 1);
025b0302
ME		 2622 assert (relocs != 0);
2623
8f78d0e9
KR		 2624 reloc = (arelent *) bfd_alloc_by_size_t (stdoutput,
2625 sizeof (arelent) * n_relocs);
025b0302
ME		 2626 if (n_relocs > 0)
2627 assert (reloc != 0);
2628
2629 for (i = 0; i < n_relocs; i++)
2630 relocs[i] = &reloc[i];
2631
2632 relocs[n_relocs] = NULL;
2633
62f0841b 2634#ifdef OBJ_ELF
025b0302
ME		 2635 switch (fixp->fx_r_type)
2636 {
025b0302
ME		 2637 default:
2638 assert (n_relocs == 1);
2639
2640 code = *codes[0];
2641
2642 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2643 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
60937ce7 2644 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
025b0302
ME		 2645 reloc->addend = 0; /* default */
2646
2647 assert (reloc->howto && code == reloc->howto->type);
2648
8f78d0e9 2649 /* Now, do any processing that is dependent on the relocation type. */
025b0302
ME		 2650 switch (code)
2651 {
8fd04cba
JL		 2652 case R_PARISC_DLTREL21L:
2653 case R_PARISC_DLTREL14R:
2654 case R_PARISC_DLTREL14F:
3315c7c7
JL		 2655 case R_PARISC_PLABEL32:
2656 case R_PARISC_PLABEL21L:
2657 case R_PARISC_PLABEL14R:
8f78d0e9
KR		 2658 /* For plabel relocations, the addend of the
2659 relocation should be either 0 (no static link) or 2
2660 (static link required).
2661
8fd04cba
JL		 2662 FIXME: We always assume no static link!
2663
2664 We also slam a zero addend into the DLT relative relocs;
2665 it doesn't make a lot of sense to use any addend since
2666 it gets you a different (eg unknown) DLT entry. */
7b624bf2 2667 reloc->addend = 0;
025b0302
ME		 2668 break;
2669
3315c7c7
JL		 2670 case R_PARISC_PCREL21L:
2671 case R_PARISC_PCREL17R:
2672 case R_PARISC_PCREL17F:
2673 case R_PARISC_PCREL17C:
2674 case R_PARISC_PCREL14R:
2675 case R_PARISC_PCREL14F:
8f78d0e9
KR		 2676 /* The constant is stored in the instruction. */
2677 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
025b0302
ME		 2678 break;
2679 default:
e67b3aa3 2680 reloc->addend = fixp->fx_offset;
025b0302
ME		 2681 break;
2682 }
2683 break;
2684 }
62f0841b 2685#else /* OBJ_SOM */
025b0302 2686
4165dcc2
JL		 2687 /* Walk over reach relocation returned by the BFD backend. */
2688 for (i = 0; i < n_relocs; i++)
62f0841b 2689 {
4165dcc2 2690 code = *codes[i];
c5e9ccd0 2691
4165dcc2
JL		 2692 relocs[i]->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2693 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
2694 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
025b0302 2695
62f0841b
JL		 2696 switch (code)
2697 {
249c7415
JL		 2698 case R_COMP2:
2699 /* The only time we ever use a R_COMP2 fixup is for the difference
2700 of two symbols. With that in mind we fill in all four
2701 relocs now and break out of the loop. */
2702 assert (i == 1);
2703 relocs[0]->sym_ptr_ptr = &bfd_abs_symbol;
2704 relocs[0]->howto = bfd_reloc_type_lookup (stdoutput, *codes[0]);
2705 relocs[0]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2706 relocs[0]->addend = 0;
eff5fcda 2707 relocs[1]->sym_ptr_ptr = &fixp->fx_addsy->bsym;
249c7415
JL		 2708 relocs[1]->howto = bfd_reloc_type_lookup (stdoutput, *codes[1]);
2709 relocs[1]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2710 relocs[1]->addend = 0;
2711 relocs[2]->sym_ptr_ptr = &fixp->fx_subsy->bsym;
2712 relocs[2]->howto = bfd_reloc_type_lookup (stdoutput, *codes[2]);
2713 relocs[2]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2714 relocs[2]->addend = 0;
2715 relocs[3]->sym_ptr_ptr = &bfd_abs_symbol;
2716 relocs[3]->howto = bfd_reloc_type_lookup (stdoutput, *codes[3]);
2717 relocs[3]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2718 relocs[3]->addend = 0;
2719 relocs[4]->sym_ptr_ptr = &bfd_abs_symbol;
2720 relocs[4]->howto = bfd_reloc_type_lookup (stdoutput, *codes[4]);
2721 relocs[4]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2722 relocs[4]->addend = 0;
2723 goto done;
62f0841b
JL		 2724 case R_PCREL_CALL:
2725 case R_ABS_CALL:
4165dcc2 2726 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
62f0841b 2727 break;
f2eed884 2728
8fd04cba 2729 case R_DLT_REL:
f2eed884
JL		 2730 case R_DATA_PLABEL:
2731 case R_CODE_PLABEL:
2732 /* For plabel relocations, the addend of the
2733 relocation should be either 0 (no static link) or 2
2734 (static link required).
2735
75c28b49 2736 FIXME: We always assume no static link!
8fd04cba
JL		 2737
2738 We also slam a zero addend into the DLT relative relocs;
2739 it doesn't make a lot of sense to use any addend since
2740 it gets you a different (eg unknown) DLT entry. */
4165dcc2
JL		 2741 relocs[i]->addend = 0;
2742 break;
2743
2744 case R_N_MODE:
2745 case R_S_MODE:
2746 case R_D_MODE:
2747 case R_R_MODE:
6868afe6
KR		 2748 case R_FSEL:
2749 case R_LSEL:
2750 case R_RSEL:
5ae218df
JL		 2751 case R_BEGIN_BRTAB:
2752 case R_END_BRTAB:
eff5fcda
JL		 2753 case R_N0SEL:
2754 case R_N1SEL:
4165dcc2 2755 /* There is no symbol or addend associated with these fixups. */
fca59f9d 2756 relocs[i]->sym_ptr_ptr = &dummy_symbol->bsym;
4165dcc2 2757 relocs[i]->addend = 0;
f2eed884
JL		 2758 break;
2759
75c28b49
JL		 2760 case R_ENTRY:
2761 case R_EXIT:
2762 /* There is no symbol associated with these fixups. */
2763 relocs[i]->sym_ptr_ptr = &dummy_symbol->bsym;
e67b3aa3 2764 relocs[i]->addend = fixp->fx_offset;
75c28b49
JL		 2765 break;
2766
62f0841b 2767 default:
e67b3aa3 2768 relocs[i]->addend = fixp->fx_offset;
62f0841b 2769 }
62f0841b 2770 }
025b0302
ME		 2771#endif
2772
249c7415 2773done:
62f0841b
JL		 2774 return relocs;
2775}
2776
8f78d0e9
KR		 2777/* Process any machine dependent frag types. */
2778
025b0302
ME		 2779void
2780md_convert_frag (abfd, sec, fragP)
2781 register bfd *abfd;
2782 register asection *sec;
2783 register fragS *fragP;
2784{
2785 unsigned int address;
2786
2787 if (fragP->fr_type == rs_machine_dependent)
2788 {
2789 switch ((int) fragP->fr_subtype)
2790 {
2791 case 0:
2792 fragP->fr_type = rs_fill;
2793 know (fragP->fr_var == 1);
2794 know (fragP->fr_next);
2795 address = fragP->fr_address + fragP->fr_fix;
2796 if (address % fragP->fr_offset)
2797 {
2798 fragP->fr_offset =
2799 fragP->fr_next->fr_address
2800 - fragP->fr_address
2801 - fragP->fr_fix;
2802 }
2803 else
2804 fragP->fr_offset = 0;
2805 break;
2806 }
8f78d0e9
KR		 2807 }
2808}
025b0302 2809
8f78d0e9 2810/* Round up a section size to the appropriate boundary. */
025b0302 2811
8f78d0e9
KR		 2812valueT
2813md_section_align (segment, size)
2814 asection *segment;
2815 valueT size;
025b0302 2816{
8f78d0e9
KR		 2817 int align = bfd_get_section_alignment (stdoutput, segment);
2818 int align2 = (1 << align) - 1;
025b0302 2819
8f78d0e9 2820 return (size + align2) & ~align2;
8f78d0e9 2821}
025b0302 2822
8f78d0e9
KR		 2823/* Create a short jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2824void
2825md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
2826 char *ptr;
2827 addressT from_addr, to_addr;
2828 fragS *frag;
2829 symbolS *to_symbol;
2830{
2831 fprintf (stderr, "pa_create_short_jmp\n");
2832 abort ();
2833}
025b0302 2834
8f78d0e9
KR		 2835/* Create a long jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2836void
2837md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
2838 char *ptr;
2839 addressT from_addr, to_addr;
2840 fragS *frag;
2841 symbolS *to_symbol;
2842{
2843 fprintf (stderr, "pa_create_long_jump\n");
2844 abort ();
025b0302
ME		 2845}
2846
8f78d0e9
KR		 2847/* Return the approximate size of a frag before relaxation has occurred. */
2848int
2849md_estimate_size_before_relax (fragP, segment)
2850 register fragS *fragP;
2851 asection *segment;
025b0302 2852{
8f78d0e9
KR		 2853 int size;
2854
2855 size = 0;
2856
2857 while ((fragP->fr_fix + size) % fragP->fr_offset)
2858 size++;
2859
2860 return size;
025b0302 2861}
f3d817d8
DM		 2862\f
2863CONST char *md_shortopts = "";
2864struct option md_longopts[] = {
2865 {NULL, no_argument, NULL, 0}
2866};
2867size_t md_longopts_size = sizeof(md_longopts);
025b0302 2868
8f78d0e9 2869int
f3d817d8
DM		 2870md_parse_option (c, arg)
2871 int c;
2872 char *arg;
025b0302 2873{
f3d817d8 2874 return 0;
8f78d0e9 2875}
025b0302 2876
f3d817d8
DM		 2877void
2878md_show_usage (stream)
2879 FILE *stream;
2880{
2881}
2882\f
8f78d0e9
KR		 2883/* We have no need to default values of symbols. */
2884
2885symbolS *
2886md_undefined_symbol (name)
2887 char *name;
2888{
2889 return 0;
025b0302
ME		 2890}
2891
753dcbbd 2892/* Apply a fixup to an instruction. */
8f78d0e9 2893
753dcbbd
JL		 2894int
2895md_apply_fix (fixP, valp)
8f78d0e9 2896 fixS *fixP;
753dcbbd 2897 valueT *valp;
025b0302 2898{
8f78d0e9 2899 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
fb338f1d 2900 struct hppa_fix_struct *hppa_fixP;
8f78d0e9
KR		 2901 long new_val, result;
2902 unsigned int w1, w2, w;
2903
fb338f1d 2904 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
75c28b49 2905 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
83b59013
JL		 2906 never be "applied" (they are just markers). Likewise for
2907 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
ff852e11
JL		 2908#ifdef OBJ_SOM
2909 if (fixP->fx_r_type == R_HPPA_ENTRY
83b59013
JL		 2910 || fixP->fx_r_type == R_HPPA_EXIT
2911 || fixP->fx_r_type == R_HPPA_BEGIN_BRTAB
2912 || fixP->fx_r_type == R_HPPA_END_BRTAB)
e67b3aa3 2913 return;
ff852e11
JL		 2914#endif
2915
8f78d0e9
KR		 2916 /* There should have been an HPPA specific fixup associated
2917 with the GAS fixup. */
2918 if (hppa_fixP)
2919 {
2920 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
aa8b30ed 2921 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
8f78d0e9 2922
e67b3aa3
JL		 2923 /* If there is a symbol associated with this fixup, then it's something
2924 which will need a SOM relocation (except for some PC-relative relocs).
2925 In such cases we should treat the "val" or "addend" as zero since it
2926 will be added in as needed from fx_offset in tc_gen_reloc. */
b4682e51
JL		 2927 if ((fixP->fx_addsy != NULL
2928 || fixP->fx_r_type == R_HPPA_NONE)
2929#ifdef OBJ_SOM
2930 && fmt != 32
2931 || hppa_fixP->fx_r_field == e_psel
2932 || hppa_fixP->fx_r_field == e_rpsel
2933 || hppa_fixP->fx_r_field == e_lpsel
2934 || hppa_fixP->fx_r_field == e_tsel
2935 || hppa_fixP->fx_r_field == e_rtsel
2936 || hppa_fixP->fx_r_field == e_ltsel
2937#endif
2938 )
e67b3aa3 2939 new_val = ((fmt == 12 || fmt == 17) ? 8 : 0);
2c23d22b
JL		 2940#ifdef OBJ_SOM
2941 /* This is truely disgusting. The machine independent code blindly
2942 adds in the value of the symbol being relocated against. Damn! */
2943 else if (fmt == 32
2944 && fixP->fx_addsy != NULL
2945 && S_GET_SEGMENT (fixP->fx_addsy) != bfd_com_section_ptr)
2946 new_val = hppa_field_adjust (*valp - S_GET_VALUE (fixP->fx_addsy),
2947 0, hppa_fixP->fx_r_field);
2948#endif
48153d49 2949 else
e67b3aa3 2950 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
48153d49 2951
e67b3aa3 2952 /* Handle pc-relative exceptions from above. */
4829cd65 2953#define arg_reloc_stub_needed(CALLER, CALLEE) \
e67b3aa3
JL		 2954 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
2955 if ((fmt == 12 || fmt == 17)
2956 && fixP->fx_addsy
2957 && fixP->fx_pcrel
4829cd65
JL		 2958 && !arg_reloc_stub_needed (((obj_symbol_type *)
2959 fixP->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
2960 hppa_fixP->fx_arg_reloc)
4ff6f92a 2961 && ((int)(*valp) > -262144 && (int)(*valp) < 262143)
e67b3aa3
JL		 2962 && S_GET_SEGMENT (fixP->fx_addsy) == hppa_fixP->segment
2963 && !(fixP->fx_subsy
2964 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
2965
2966 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
4829cd65 2967#undef arg_reloc_stub_needed
e67b3aa3 2968
8f78d0e9
KR		 2969 switch (fmt)
2970 {
2971 /* Handle all opcodes with the 'j' operand type. */
2972 case 14:
48153d49 2973 CHECK_FIELD (new_val, 8191, -8192, 0);
8f78d0e9
KR		 2974
2975 /* Mask off 14 bits to be changed. */
2976 bfd_put_32 (stdoutput,
2977 bfd_get_32 (stdoutput, buf) & 0xffffc000,
2978 buf);
2979 low_sign_unext (new_val, 14, &result);
2980 break;
2981
2982 /* Handle all opcodes with the 'k' operand type. */
2983 case 21:
48153d49 2984 CHECK_FIELD (new_val, 2097152, 0, 0);
8f78d0e9
KR		 2985
2986 /* Mask off 21 bits to be changed. */
2987 bfd_put_32 (stdoutput,
2988 bfd_get_32 (stdoutput, buf) & 0xffe00000,
2989 buf);
2990 dis_assemble_21 (new_val, &result);
2991 break;
2992
2993 /* Handle all the opcodes with the 'i' operand type. */
2994 case 11:
48153d49 2995 CHECK_FIELD (new_val, 1023, -1023, 0);
8f78d0e9
KR		 2996
2997 /* Mask off 11 bits to be changed. */
2998 bfd_put_32 (stdoutput,
2999 bfd_get_32 (stdoutput, buf) & 0xffff800,
3000 buf);
3001 low_sign_unext (new_val, 11, &result);
3002 break;
3003
3004 /* Handle all the opcodes with the 'w' operand type. */
3005 case 12:
83b59013 3006 CHECK_FIELD (new_val, 8199, -8184, 0)
8f78d0e9
KR		 3007
3008 /* Mask off 11 bits to be changed. */
c5e9ccd0 3009 sign_unext ((new_val - 8) >> 2, 12, &result);
8f78d0e9
KR		 3010 bfd_put_32 (stdoutput,
3011 bfd_get_32 (stdoutput, buf) & 0xffffe002,
3012 buf);
3013
3014 dis_assemble_12 (result, &w1, &w);
3015 result = ((w1 << 2) | w);
8f78d0e9
KR		 3016 break;
3017
753dcbbd
JL		 3018 /* Handle some of the opcodes with the 'W' operand type. */
3019 case 17:
48153d49 3020 CHECK_FIELD (new_val, 262143, -262144, 0);
8f78d0e9
KR		 3021
3022 /* Mask off 17 bits to be changed. */
3023 bfd_put_32 (stdoutput,
3024 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
3025 buf);
3026 sign_unext ((new_val - 8) >> 2, 17, &result);
3027 dis_assemble_17 (result, &w1, &w2, &w);
3028 result = ((w2 << 2) | (w1 << 16) | w);
8f78d0e9
KR		 3029 break;
3030
8f78d0e9 3031 case 32:
3315c7c7 3032 result = 0;
e67b3aa3 3033 bfd_put_32 (stdoutput, new_val, buf);
8f78d0e9
KR		 3034 break;
3035
8f78d0e9 3036 default:
48153d49 3037 as_bad ("Unknown relocation encountered in md_apply_fix.");
e67b3aa3 3038 return;
8f78d0e9
KR		 3039 }
3040
3041 /* Insert the relocation. */
48153d49 3042 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
e67b3aa3 3043 return;
8f78d0e9 3044 }
025b0302 3045 else
753dcbbd
JL		 3046 {
3047 printf ("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n",
3048 (unsigned int) fixP, fixP->fx_r_type);
e67b3aa3 3049 return;
753dcbbd 3050 }
8f78d0e9
KR		 3051}
3052
3053/* Exactly what point is a PC-relative offset relative TO?
3054 On the PA, they're relative to the address of the offset. */
3055
3056long
3057md_pcrel_from (fixP)
3058 fixS *fixP;
3059{
3060 return fixP->fx_where + fixP->fx_frag->fr_address;
3061}
3062
75c28b49 3063/* Return nonzero if the input line pointer is at the end of
8f78d0e9
KR		 3064 a statement. */
3065
3066static int
3067is_end_of_statement ()
3068{
3069 return ((*input_line_pointer == '\n')
3070 || (*input_line_pointer == ';')
3071 || (*input_line_pointer == '!'));
3072}
3073
3074/* Read a number from S. The number might come in one of many forms,
3075 the most common will be a hex or decimal constant, but it could be
3076 a pre-defined register (Yuk!), or an absolute symbol.
3077
3078 Return a number or -1 for failure.
3079
3080 When parsing PA-89 FP register numbers RESULT will be
3081 the address of a structure to return information about
3082 L/R half of FP registers, store results there as appropriate.
3083
3084 pa_parse_number can not handle negative constants and will fail
3085 horribly if it is passed such a constant. */
3086
3087static int
3088pa_parse_number (s, result)
025b0302 3089 char **s;
4829cd65 3090 struct pa_11_fp_reg_struct *result;
025b0302
ME		 3091{
3092 int num;
3093 char *name;
3094 char c;
3095 symbolS *sym;
3096 int status;
3097 char *p = *s;
3098
8f78d0e9 3099 /* Skip whitespace before the number. */
025b0302
ME		 3100 while (*p == ' ' || *p == '\t')
3101 p = p + 1;
8f78d0e9
KR		 3102
3103 /* Store info in RESULT if requested by caller. */
3104 if (result)
3105 {
3106 result->number_part = -1;
3107 result->l_r_select = -1;
3108 }
3109 num = -1;
025b0302
ME		 3110
3111 if (isdigit (*p))
3112 {
8f78d0e9
KR		 3113 /* Looks like a number. */
3114 num = 0;
025b0302
ME		 3115
3116 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
8f78d0e9
KR		 3117 {
3118 /* The number is specified in hex. */
3119 p += 2;
025b0302
ME		 3120 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
3121 || ((*p >= 'A') && (*p <= 'F')))
3122 {
3123 if (isdigit (*p))
3124 num = num * 16 + *p - '0';
3125 else if (*p >= 'a' && *p <= 'f')
3126 num = num * 16 + *p - 'a' + 10;
3127 else
3128 num = num * 16 + *p - 'A' + 10;
3129 ++p;
3130 }
3131 }
3132 else
3133 {
8f78d0e9 3134 /* The number is specified in decimal. */
025b0302
ME		 3135 while (isdigit (*p))
3136 {
3137 num = num * 10 + *p - '0';
3138 ++p;
3139 }
3140 }
3141
8f78d0e9
KR		 3142 /* Store info in RESULT if requested by the caller. */
3143 if (result)
025b0302 3144 {
8f78d0e9 3145 result->number_part = num;
025b0302 3146
8f78d0e9
KR		 3147 if (IS_R_SELECT (p))
3148 {
3149 result->l_r_select = 1;
3150 ++p;
3151 }
3152 else if (IS_L_SELECT (p))
3153 {
3154 result->l_r_select = 0;
3155 ++p;
3156 }
3157 else
3158 result->l_r_select = 0;
3159 }
025b0302
ME		 3160 }
3161 else if (*p == '%')
8f78d0e9
KR		 3162 {
3163 /* The number might be a predefined register. */
025b0302
ME		 3164 num = 0;
3165 name = p;
3166 p++;
3167 c = *p;
8f78d0e9 3168 /* Tege hack: Special case for general registers as the general
75c28b49 3169 code makes a binary search with case translation, and is VERY
8f78d0e9 3170 slow. */
025b0302
ME		 3171 if (c == 'r')
3172 {
3173 p++;
8f78d0e9
KR		 3174 if (*p == 'e' && *(p + 1) == 't'
3175 && (*(p + 2) == '0' || *(p + 2) == '1'))
025b0302
ME		 3176 {
3177 p += 2;
8f78d0e9 3178 num = *p - '0' + 28;
025b0302
ME		 3179 p++;
3180 }
d6e524f3
JL		 3181 else if (*p == 'p')
3182 {
3183 num = 2;
3184 p++;
3185 }
025b0302 3186 else if (!isdigit (*p))
d6e524f3
JL		 3187 {
3188 if (print_errors)
3189 as_bad ("Undefined register: '%s'.", name);
3190 num = -1;
3191 }
025b0302
ME		 3192 else
3193 {
3194 do
3195 num = num * 10 + *p++ - '0';
3196 while (isdigit (*p));
3197 }
3198 }
3199 else
3200 {
8f78d0e9 3201 /* Do a normal register search. */
025b0302
ME		 3202 while (is_part_of_name (c))
3203 {
3204 p = p + 1;
3205 c = *p;
3206 }
3207 *p = 0;
3208 status = reg_name_search (name);
3209 if (status >= 0)
3210 num = status;
3211 else
3212 {
3213 if (print_errors)
d6e524f3
JL		 3214 as_bad ("Undefined register: '%s'.", name);
3215 num = -1;
025b0302
ME		 3216 }
3217 *p = c;
3218 }
3219
8f78d0e9
KR		 3220 /* Store info in RESULT if requested by caller. */
3221 if (result)
3222 {
3223 result->number_part = num;
3224 if (IS_R_SELECT (p - 1))
3225 result->l_r_select = 1;
3226 else if (IS_L_SELECT (p - 1))
3227 result->l_r_select = 0;
3228 else
3229 result->l_r_select = 0;
3230 }
025b0302
ME		 3231 }
3232 else
3233 {
8f78d0e9
KR		 3234 /* And finally, it could be a symbol in the absolute section which
3235 is effectively a constant. */
025b0302
ME		 3236 num = 0;
3237 name = p;
3238 c = *p;
3239 while (is_part_of_name (c))
3240 {
3241 p = p + 1;
3242 c = *p;
3243 }
3244 *p = 0;
3245 if ((sym = symbol_find (name)) != NULL)
3246 {
025b0302 3247 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
8f78d0e9 3248 num = S_GET_VALUE (sym);
025b0302
ME		 3249 else
3250 {
3251 if (print_errors)
d6e524f3
JL		 3252 as_bad ("Non-absolute symbol: '%s'.", name);
3253 num = -1;
025b0302
ME		 3254 }
3255 }
3256 else
3257 {
d6e524f3
JL		 3258 /* There is where we'd come for an undefined symbol
3259 or for an empty string. For an empty string we
3260 will return zero. That's a concession made for
3261 compatability with the braindamaged HP assemblers. */
1cc248d2 3262 if (*name == 0)
d6e524f3 3263 num = 0;
025b0302 3264 else
d6e524f3
JL		 3265 {
3266 if (print_errors)
3267 as_bad ("Undefined absolute constant: '%s'.", name);
3268 num = -1;
3269 }
025b0302
ME		 3270 }
3271 *p = c;
025b0302 3272
8f78d0e9
KR		 3273 /* Store info in RESULT if requested by caller. */
3274 if (result)
3275 {
3276 result->number_part = num;
3277 if (IS_R_SELECT (p - 1))
3278 result->l_r_select = 1;
3279 else if (IS_L_SELECT (p - 1))
3280 result->l_r_select = 0;
3281 else
3282 result->l_r_select = 0;
3283 }
025b0302
ME		 3284 }
3285
3286 *s = p;
3287 return num;
8f78d0e9
KR		 3288}
3289
3290#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3291
3292/* Given NAME, find the register number associated with that name, return
3293 the integer value associated with the given name or -1 on failure. */
3294
3295static int
3296reg_name_search (name)
3297 char *name;
3298{
3299 int middle, low, high;
4047ff1d 3300 int cmp;
8f78d0e9
KR		 3301
3302 low = 0;
3303 high = REG_NAME_CNT - 1;
3304
3305 do
3306 {
3307 middle = (low + high) / 2;
4047ff1d
JL		 3308 cmp = strcasecmp (name, pre_defined_registers[middle].name);
3309 if (cmp < 0)
8f78d0e9 3310 high = middle - 1;
4047ff1d 3311 else if (cmp > 0)
8f78d0e9 3312 low = middle + 1;
4047ff1d
JL		 3313 else
3314 return pre_defined_registers[middle].value;
8f78d0e9 3315 }
4047ff1d 3316 while (low <= high);
8f78d0e9 3317
4047ff1d 3318 return -1;
8f78d0e9
KR		 3319}
3320
3321
3322/* Return nonzero if the given INSN and L/R information will require
4829cd65 3323 a new PA-1.1 opcode. */
025b0302 3324
8f78d0e9 3325static int
4829cd65 3326need_pa11_opcode (insn, result)
8f78d0e9 3327 struct pa_it *insn;
4829cd65 3328 struct pa_11_fp_reg_struct *result;
8f78d0e9
KR		 3329{
3330 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
4829cd65
JL		 3331 {
3332 /* If this instruction is specific to a particular architecture,
3333 then set a new architecture. */
3334 if (bfd_get_mach (stdoutput) < pa11)
3335 {
3336 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, pa11))
3337 as_warn ("could not update architecture and machine");
3338 }
3339 return TRUE;
3340 }
8f78d0e9
KR		 3341 else
3342 return FALSE;
025b0302
ME		 3343}
3344
8f78d0e9
KR		 3345/* Parse a condition for a fcmp instruction. Return the numerical
3346 code associated with the condition. */
c5e9ccd0 3347
8f78d0e9 3348static int
025b0302
ME		 3349pa_parse_fp_cmp_cond (s)
3350 char **s;
3351{
3352 int cond, i;
025b0302
ME		 3353
3354 cond = 0;
3355
3356 for (i = 0; i < 32; i++)
3357 {
8f78d0e9
KR		 3358 if (strncasecmp (*s, fp_cond_map[i].string,
3359 strlen (fp_cond_map[i].string)) == 0)
025b0302 3360 {
8f78d0e9
KR		 3361 cond = fp_cond_map[i].cond;
3362 *s += strlen (fp_cond_map[i].string);
ee8b8346
JL		 3363 /* If not a complete match, back up the input string and
3364 report an error. */
3365 if (**s != ' ' && **s != '\t')
3366 {
3367 *s -= strlen (fp_cond_map[i].string);
3368 break;
3369 }
025b0302
ME		 3370 while (**s == ' ' || **s == '\t')
3371 *s = *s + 1;
3372 return cond;
3373 }
3374 }
3375
ee8b8346
JL		 3376 as_bad ("Invalid FP Compare Condition: %s", *s);
3377
3378 /* Advance over the bogus completer. */
3379 while (**s != ',' && **s != ' ' && **s != '\t')
3380 *s += 1;
3381
025b0302
ME		 3382 return 0;
3383}
3384
8f78d0e9
KR		 3385/* Parse an FP operand format completer returning the completer
3386 type. */
c5e9ccd0 3387
8f78d0e9 3388static fp_operand_format
025b0302
ME		 3389pa_parse_fp_format (s)
3390 char **s;
3391{
8f78d0e9 3392 int format;
025b0302 3393
8f78d0e9 3394 format = SGL;
025b0302
ME		 3395 if (**s == ',')
3396 {
3397 *s += 1;
3398 if (strncasecmp (*s, "sgl", 3) == 0)
3399 {
8f78d0e9 3400 format = SGL;
025b0302
ME		 3401 *s += 4;
3402 }
3403 else if (strncasecmp (*s, "dbl", 3) == 0)
3404 {
8f78d0e9 3405 format = DBL;
025b0302
ME		 3406 *s += 4;
3407 }
3408 else if (strncasecmp (*s, "quad", 4) == 0)
3409 {
8f78d0e9 3410 format = QUAD;
025b0302
ME		 3411 *s += 5;
3412 }
3413 else
3414 {
8f78d0e9
KR		 3415 format = ILLEGAL_FMT;
3416 as_bad ("Invalid FP Operand Format: %3s", *s);
025b0302
ME		 3417 }
3418 }
025b0302 3419
8f78d0e9 3420 return format;
025b0302
ME		 3421}
3422
8f78d0e9
KR		 3423/* Convert from a selector string into a selector type. */
3424
3425static int
025b0302
ME		 3426pa_chk_field_selector (str)
3427 char **str;
3428{
4047ff1d
JL		 3429 int middle, low, high;
3430 int cmp;
83b59013 3431 char name[4];
025b0302 3432
8f78d0e9 3433 /* Read past any whitespace. */
4047ff1d 3434 /* FIXME: should we read past newlines and formfeeds??? */
025b0302 3435 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
8f78d0e9
KR		 3436 *str = *str + 1;
3437
4047ff1d
JL		 3438 if ((*str)[1] == '\'' || (*str)[1] == '%')
3439 name[0] = tolower ((*str)[0]),
3440 name[1] = 0;
3441 else if ((*str)[2] == '\'' || (*str)[2] == '%')
3442 name[0] = tolower ((*str)[0]),
3443 name[1] = tolower ((*str)[1]),
3444 name[2] = 0;
83b59013
JL		 3445#ifdef OBJ_SOM
3446 else if ((*str)[3] == '\'' || (*str)[3] == '%')
3447 name[0] = tolower ((*str)[0]),
3448 name[1] = tolower ((*str)[1]),
3449 name[2] = tolower ((*str)[2]),
3450 name[3] = 0;
3451#endif
4047ff1d
JL		 3452 else
3453 return e_fsel;
3454
3455 low = 0;
3456 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
3457
3458 do
025b0302 3459 {
4047ff1d
JL		 3460 middle = (low + high) / 2;
3461 cmp = strcmp (name, selector_table[middle].prefix);
3462 if (cmp < 0)
3463 high = middle - 1;
3464 else if (cmp > 0)
3465 low = middle + 1;
3466 else
025b0302 3467 {
4047ff1d 3468 *str += strlen (name) + 1;
83b59013
JL		 3469#ifndef OBJ_SOM
3470 if (selector_table[middle].field_selector == e_nsel)
3471 return e_fsel;
3472#endif
4047ff1d 3473 return selector_table[middle].field_selector;
025b0302
ME		 3474 }
3475 }
4047ff1d
JL		 3476 while (low <= high);
3477
3478 return e_fsel;
025b0302
ME		 3479}
3480
c5e9ccd0 3481/* Mark (via expr_end) the end of an expression (I think). FIXME. */
025b0302 3482
8f78d0e9
KR		 3483static int
3484get_expression (str)
025b0302
ME		 3485 char *str;
3486{
3487 char *save_in;
8f78d0e9 3488 asection *seg;
025b0302
ME		 3489
3490 save_in = input_line_pointer;
3491 input_line_pointer = str;
5cf4cd1b
KR		 3492 seg = expression (&the_insn.exp);
3493 if (!(seg == absolute_section
3494 || seg == undefined_section
3495 || SEG_NORMAL (seg)))
025b0302 3496 {
c5e9ccd0 3497 as_warn ("Bad segment in expression.");
025b0302
ME		 3498 expr_end = input_line_pointer;
3499 input_line_pointer = save_in;
3500 return 1;
3501 }
3502 expr_end = input_line_pointer;
3503 input_line_pointer = save_in;
3504 return 0;
3505}
3506
8f78d0e9
KR		 3507/* Mark (via expr_end) the end of an absolute expression. FIXME. */
3508static int
48153d49
JL		 3509pa_get_absolute_expression (insn, strp)
3510 struct pa_it *insn;
3511 char **strp;
025b0302
ME		 3512{
3513 char *save_in;
025b0302 3514
48153d49 3515 insn->field_selector = pa_chk_field_selector (strp);
025b0302 3516 save_in = input_line_pointer;
48153d49
JL		 3517 input_line_pointer = *strp;
3518 expression (&insn->exp);
3519 if (insn->exp.X_op != O_constant)
025b0302 3520 {
48153d49 3521 as_bad ("Bad segment (should be absolute).");
025b0302
ME		 3522 expr_end = input_line_pointer;
3523 input_line_pointer = save_in;
48153d49 3524 return 0;
025b0302
ME		 3525 }
3526 expr_end = input_line_pointer;
3527 input_line_pointer = save_in;
48153d49 3528 return evaluate_absolute (insn);
025b0302
ME		 3529}
3530
75c28b49 3531/* Evaluate an absolute expression EXP which may be modified by
8f78d0e9
KR		 3532 the selector FIELD_SELECTOR. Return the value of the expression. */
3533static int
48153d49
JL		 3534evaluate_absolute (insn)
3535 struct pa_it *insn;
025b0302
ME		 3536{
3537 int value;
f41f3d72 3538 expressionS exp;
48153d49 3539 int field_selector = insn->field_selector;
025b0302 3540
f41f3d72 3541 exp = insn->exp;
025b0302
ME		 3542 value = exp.X_add_number;
3543
025b0302
ME		 3544 switch (field_selector)
3545 {
8f78d0e9
KR		 3546 /* No change. */
3547 case e_fsel:
025b0302
ME		 3548 break;
3549
8f78d0e9
KR		 3550 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3551 case e_lssel:
025b0302
ME		 3552 if (value & 0x00000400)
3553 value += 0x800;
3554 value = (value & 0xfffff800) >> 11;
3555 break;
3556
8f78d0e9
KR		 3557 /* Sign extend from bit 21. */
3558 case e_rssel:
025b0302
ME		 3559 if (value & 0x00000400)
3560 value |= 0xfffff800;
3561 else
3562 value &= 0x7ff;
3563 break;
3564
8f78d0e9
KR		 3565 /* Arithmetic shift right 11 bits. */
3566 case e_lsel:
025b0302
ME		 3567 value = (value & 0xfffff800) >> 11;
3568 break;
3569
8f78d0e9
KR		 3570 /* Set bits 0-20 to zero. */
3571 case e_rsel:
025b0302
ME		 3572 value = value & 0x7ff;
3573 break;
3574
8f78d0e9
KR		 3575 /* Add 0x800 and arithmetic shift right 11 bits. */
3576 case e_ldsel:
025b0302 3577 value += 0x800;
025b0302
ME		 3578 value = (value & 0xfffff800) >> 11;
3579 break;
3580
8f78d0e9
KR		 3581 /* Set bitgs 0-21 to one. */
3582 case e_rdsel:
3583 value |= 0xfffff800;
025b0302
ME		 3584 break;
3585
7b624bf2 3586#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
8f78d0e9 3587 case e_rrsel:
7b624bf2
JL		 3588 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
3589 break;
3590
8f78d0e9 3591 case e_lrsel:
7b624bf2
JL		 3592 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
3593 break;
3594#undef RSEL_ROUND
8f78d0e9 3595
025b0302
ME		 3596 default:
3597 BAD_CASE (field_selector);
3598 break;
3599 }
3600 return value;
3601}
3602
8f78d0e9
KR		 3603/* Given an argument location specification return the associated
3604 argument location number. */
3605
3606static unsigned int
025b0302
ME		 3607pa_build_arg_reloc (type_name)
3608 char *type_name;
3609{
3610
3611 if (strncasecmp (type_name, "no", 2) == 0)
8f78d0e9 3612 return 0;
025b0302 3613 if (strncasecmp (type_name, "gr", 2) == 0)
8f78d0e9 3614 return 1;
025b0302 3615 else if (strncasecmp (type_name, "fr", 2) == 0)
8f78d0e9 3616 return 2;
025b0302 3617 else if (strncasecmp (type_name, "fu", 2) == 0)
8f78d0e9 3618 return 3;
025b0302 3619 else
8f78d0e9 3620 as_bad ("Invalid argument location: %s\n", type_name);
025b0302
ME		 3621
3622 return 0;
3623}
3624
8f78d0e9
KR		 3625/* Encode and return an argument relocation specification for
3626 the given register in the location specified by arg_reloc. */
3627
3628static unsigned int
025b0302
ME		 3629pa_align_arg_reloc (reg, arg_reloc)
3630 unsigned int reg;
3631 unsigned int arg_reloc;
3632{
3633 unsigned int new_reloc;
3634
3635 new_reloc = arg_reloc;
3636 switch (reg)
3637 {
3638 case 0:
3639 new_reloc <<= 8;
3640 break;
3641 case 1:
3642 new_reloc <<= 6;
3643 break;
3644 case 2:
3645 new_reloc <<= 4;
3646 break;
3647 case 3:
3648 new_reloc <<= 2;
3649 break;
3650 default:
8f78d0e9 3651 as_bad ("Invalid argument description: %d", reg);
025b0302
ME		 3652 }
3653
3654 return new_reloc;
3655}
3656
8f78d0e9
KR		 3657/* Parse a PA nullification completer (,n). Return nonzero if the
3658 completer was found; return zero if no completer was found. */
3659
3660static int
025b0302
ME		 3661pa_parse_nullif (s)
3662 char **s;
3663{
3664 int nullif;
3665
3666 nullif = 0;
3667 if (**s == ',')
3668 {
3669 *s = *s + 1;
3670 if (strncasecmp (*s, "n", 1) == 0)
3671 nullif = 1;
3672 else
3673 {
8f78d0e9 3674 as_bad ("Invalid Nullification: (%c)", **s);
025b0302
ME		 3675 nullif = 0;
3676 }
3677 *s = *s + 1;
3678 }
025b0302
ME		 3679
3680 return nullif;
3681}
3682
8f78d0e9
KR		 3683/* Parse a non-negated compare/subtract completer returning the
3684 number (for encoding in instrutions) of the given completer.
3685
3686 ISBRANCH specifies whether or not this is parsing a condition
3687 completer for a branch (vs a nullification completer for a
3688 computational instruction. */
3689
3690static int
5cf4cd1b 3691pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
025b0302 3692 char **s;
5cf4cd1b 3693 int isbranch;
025b0302
ME		 3694{
3695 int cmpltr;
5cf4cd1b 3696 char *name = *s + 1;
025b0302 3697 char c;
5cf4cd1b 3698 char *save_s = *s;
025b0302 3699
5cf4cd1b 3700 cmpltr = 0;
025b0302
ME		 3701 if (**s == ',')
3702 {
3703 *s += 1;
025b0302
ME		 3704 while (**s != ',' && **s != ' ' && **s != '\t')
3705 *s += 1;
3706 c = **s;
3707 **s = 0x00;
3708 if (strcmp (name, "=") == 0)
3709 {
3710 cmpltr = 1;
3711 }
3712 else if (strcmp (name, "<") == 0)
3713 {
3714 cmpltr = 2;
3715 }
3716 else if (strcmp (name, "<=") == 0)
3717 {
3718 cmpltr = 3;
3719 }
3720 else if (strcmp (name, "<<") == 0)
3721 {
3722 cmpltr = 4;
3723 }
3724 else if (strcmp (name, "<<=") == 0)
3725 {
3726 cmpltr = 5;
3727 }
3728 else if (strcasecmp (name, "sv") == 0)
3729 {
3730 cmpltr = 6;
3731 }
3732 else if (strcasecmp (name, "od") == 0)
3733 {
3734 cmpltr = 7;
3735 }
5cf4cd1b 3736 /* If we have something like addb,n then there is no condition
8f78d0e9 3737 completer. */
5cf4cd1b 3738 else if (strcasecmp (name, "n") == 0 && isbranch)
025b0302 3739 {
5cf4cd1b 3740 cmpltr = 0;
025b0302 3741 }
8f78d0e9 3742 else
025b0302 3743 {
5cf4cd1b 3744 cmpltr = -1;
025b0302 3745 }
025b0302
ME		 3746 **s = c;
3747 }
025b0302 3748
5cf4cd1b
KR		 3749 /* Reset pointers if this was really a ,n for a branch instruction. */
3750 if (cmpltr == 0 && *name == 'n' && isbranch)
3751 *s = save_s;
3752
025b0302
ME		 3753 return cmpltr;
3754}
3755
8f78d0e9
KR		 3756/* Parse a negated compare/subtract completer returning the
3757 number (for encoding in instrutions) of the given completer.
3758
3759 ISBRANCH specifies whether or not this is parsing a condition
3760 completer for a branch (vs a nullification completer for a
3761 computational instruction. */
3762
3763static int
5cf4cd1b 3764pa_parse_neg_cmpsub_cmpltr (s, isbranch)
025b0302 3765 char **s;
5cf4cd1b 3766 int isbranch;
025b0302
ME		 3767{
3768 int cmpltr;
5cf4cd1b 3769 char *name = *s + 1;
025b0302 3770 char c;
5cf4cd1b 3771 char *save_s = *s;
025b0302 3772
5cf4cd1b 3773 cmpltr = 0;
025b0302
ME		 3774 if (**s == ',')
3775 {
3776 *s += 1;
025b0302
ME		 3777 while (**s != ',' && **s != ' ' && **s != '\t')
3778 *s += 1;
3779 c = **s;
3780 **s = 0x00;
3781 if (strcasecmp (name, "tr") == 0)
3782 {
3783 cmpltr = 0;
3784 }
3785 else if (strcmp (name, "<>") == 0)
3786 {
3787 cmpltr = 1;
3788 }
3789 else if (strcmp (name, ">=") == 0)
3790 {
3791 cmpltr = 2;
3792 }
3793 else if (strcmp (name, ">") == 0)
3794 {
3795 cmpltr = 3;
3796 }
3797 else if (strcmp (name, ">>=") == 0)
3798 {
3799 cmpltr = 4;
3800 }
3801 else if (strcmp (name, ">>") == 0)
3802 {
3803 cmpltr = 5;
3804 }
3805 else if (strcasecmp (name, "nsv") == 0)
3806 {
3807 cmpltr = 6;
3808 }
3809 else if (strcasecmp (name, "ev") == 0)
3810 {
3811 cmpltr = 7;
3812 }
5cf4cd1b 3813 /* If we have something like addb,n then there is no condition
8f78d0e9 3814 completer. */
5cf4cd1b
KR		 3815 else if (strcasecmp (name, "n") == 0 && isbranch)
3816 {
3817 cmpltr = 0;
3818 }
3819 else
3820 {
3821 cmpltr = -1;
3822 }
025b0302
ME		 3823 **s = c;
3824 }
025b0302 3825
5cf4cd1b
KR		 3826 /* Reset pointers if this was really a ,n for a branch instruction. */
3827 if (cmpltr == 0 && *name == 'n' && isbranch)
3828 *s = save_s;
3829
025b0302
ME		 3830 return cmpltr;
3831}
3832
8f78d0e9
KR		 3833/* Parse a non-negated addition completer returning the number
3834 (for encoding in instrutions) of the given completer.
3835
3836 ISBRANCH specifies whether or not this is parsing a condition
3837 completer for a branch (vs a nullification completer for a
3838 computational instruction. */
3839
3840static int
5cf4cd1b 3841pa_parse_nonneg_add_cmpltr (s, isbranch)
025b0302 3842 char **s;
5cf4cd1b 3843 int isbranch;
025b0302
ME		 3844{
3845 int cmpltr;
5cf4cd1b 3846 char *name = *s + 1;
025b0302 3847 char c;
5cf4cd1b 3848 char *save_s = *s;
025b0302 3849
5cf4cd1b 3850 cmpltr = 0;
025b0302
ME		 3851 if (**s == ',')
3852 {
3853 *s += 1;
025b0302
ME		 3854 while (**s != ',' && **s != ' ' && **s != '\t')
3855 *s += 1;
3856 c = **s;
3857 **s = 0x00;
3858 if (strcmp (name, "=") == 0)
3859 {
3860 cmpltr = 1;
3861 }
3862 else if (strcmp (name, "<") == 0)
3863 {
3864 cmpltr = 2;
3865 }
3866 else if (strcmp (name, "<=") == 0)
3867 {
3868 cmpltr = 3;
3869 }
3870 else if (strcasecmp (name, "nuv") == 0)
3871 {
3872 cmpltr = 4;
3873 }
3874 else if (strcasecmp (name, "znv") == 0)
3875 {
3876 cmpltr = 5;
3877 }
3878 else if (strcasecmp (name, "sv") == 0)
3879 {
3880 cmpltr = 6;
3881 }
3882 else if (strcasecmp (name, "od") == 0)
3883 {
3884 cmpltr = 7;
3885 }
5cf4cd1b 3886 /* If we have something like addb,n then there is no condition
8f78d0e9 3887 completer. */
5cf4cd1b
KR		 3888 else if (strcasecmp (name, "n") == 0 && isbranch)
3889 {
3890 cmpltr = 0;
3891 }
3892 else
3893 {
3894 cmpltr = -1;
3895 }
025b0302
ME		 3896 **s = c;
3897 }
025b0302 3898
5cf4cd1b
KR		 3899 /* Reset pointers if this was really a ,n for a branch instruction. */
3900 if (cmpltr == 0 && *name == 'n' && isbranch)
3901 *s = save_s;
3902
025b0302
ME		 3903 return cmpltr;
3904}
3905
8f78d0e9
KR		 3906/* Parse a negated addition completer returning the number
3907 (for encoding in instrutions) of the given completer.
3908
3909 ISBRANCH specifies whether or not this is parsing a condition
3910 completer for a branch (vs a nullification completer for a
3911 computational instruction. */
3912
3913static int
5cf4cd1b 3914pa_parse_neg_add_cmpltr (s, isbranch)
025b0302 3915 char **s;
5cf4cd1b 3916 int isbranch;
025b0302
ME		 3917{
3918 int cmpltr;
5cf4cd1b 3919 char *name = *s + 1;
025b0302 3920 char c;
5cf4cd1b 3921 char *save_s = *s;
025b0302 3922
5cf4cd1b 3923 cmpltr = 0;
025b0302
ME		 3924 if (**s == ',')
3925 {
3926 *s += 1;
025b0302
ME		 3927 while (**s != ',' && **s != ' ' && **s != '\t')
3928 *s += 1;
3929 c = **s;
3930 **s = 0x00;
3931 if (strcasecmp (name, "tr") == 0)
3932 {
3933 cmpltr = 0;
3934 }
3935 else if (strcmp (name, "<>") == 0)
3936 {
3937 cmpltr = 1;
3938 }
3939 else if (strcmp (name, ">=") == 0)
3940 {
3941 cmpltr = 2;
3942 }
3943 else if (strcmp (name, ">") == 0)
3944 {
3945 cmpltr = 3;
3946 }
4047ff1d 3947 else if (strcasecmp (name, "uv") == 0)
025b0302
ME		 3948 {
3949 cmpltr = 4;
3950 }
4047ff1d 3951 else if (strcasecmp (name, "vnz") == 0)
025b0302
ME		 3952 {
3953 cmpltr = 5;
3954 }
3955 else if (strcasecmp (name, "nsv") == 0)
3956 {
3957 cmpltr = 6;
3958 }
3959 else if (strcasecmp (name, "ev") == 0)
3960 {
3961 cmpltr = 7;
3962 }
5cf4cd1b 3963 /* If we have something like addb,n then there is no condition
8f78d0e9 3964 completer. */
5cf4cd1b
KR		 3965 else if (strcasecmp (name, "n") == 0 && isbranch)
3966 {
3967 cmpltr = 0;
3968 }
3969 else
3970 {
3971 cmpltr = -1;
3972 }
025b0302
ME		 3973 **s = c;
3974 }
025b0302 3975
5cf4cd1b
KR		 3976 /* Reset pointers if this was really a ,n for a branch instruction. */
3977 if (cmpltr == 0 && *name == 'n' && isbranch)
3978 *s = save_s;
3979
025b0302
ME		 3980 return cmpltr;
3981}
3982
e67b3aa3
JL		 3983/* Handle an alignment directive. Special so that we can update the
3984 alignment of the subspace if necessary. */
3985static void
3986pa_align (bytes)
3987{
60937ce7
JL		 3988 /* We must have a valid space and subspace. */
3989 pa_check_current_space_and_subspace ();
3990
e67b3aa3
JL		 3991 /* Let the generic gas code do most of the work. */
3992 s_align_bytes (bytes);
3993
3994 /* If bytes is a power of 2, then update the current subspace's
3995 alignment if necessary. */
3996 if (log2 (bytes) != -1)
3997 record_alignment (current_subspace->ssd_seg, log2 (bytes));
3998}
3999
8f78d0e9 4000/* Handle a .BLOCK type pseudo-op. */
025b0302 4001
8f78d0e9 4002static void
025b0302
ME		 4003pa_block (z)
4004 int z;
4005{
8f78d0e9
KR		 4006 char *p;
4007 long int temp_fill;
4008 unsigned int temp_size;
4009 int i;
025b0302 4010
60937ce7
JL		 4011 /* We must have a valid space and subspace. */
4012 pa_check_current_space_and_subspace ();
4013
025b0302
ME		 4014 temp_size = get_absolute_expression ();
4015
8f78d0e9
KR		 4016 /* Always fill with zeros, that's what the HP assembler does. */
4017 temp_fill = 0;
025b0302 4018
c5e9ccd0 4019 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
8f78d0e9
KR		 4020 (relax_substateT) 0, (symbolS *) 0, 1, NULL);
4021 bzero (p, temp_size);
025b0302 4022
8f78d0e9 4023 /* Convert 2 bytes at a time. */
025b0302
ME		 4024
4025 for (i = 0; i < temp_size; i += 2)
4026 {
4027 md_number_to_chars (p + i,
8f78d0e9 4028 (valueT) temp_fill,
025b0302
ME		 4029 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
4030 }
4031
4032 pa_undefine_label ();
4033 demand_empty_rest_of_line ();
025b0302
ME		 4034}
4035
5ae218df
JL		 4036/* Handle a .begin_brtab and .end_brtab pseudo-op. */
4037
4038static void
4039pa_brtab (begin)
4040 int begin;
4041{
4042
4043#ifdef OBJ_SOM
4044 /* The BRTAB relocations are only availble in SOM (to denote
4045 the beginning and end of branch tables). */
4046 char *where = frag_more (0);
4047
4048 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4049 NULL, (offsetT) 0, NULL,
4050 0, begin ? R_HPPA_BEGIN_BRTAB : R_HPPA_END_BRTAB,
4051 e_fsel, 0, 0, NULL);
4052#endif
4053
4054 demand_empty_rest_of_line ();
4055}
4056
8f78d0e9
KR		 4057/* Handle a .CALL pseudo-op. This involves storing away information
4058 about where arguments are to be found so the linker can detect
4059 (and correct) argument location mismatches between caller and callee. */
025b0302 4060
8f78d0e9
KR		 4061static void
4062pa_call (unused)
4063 int unused;
4064{
60937ce7
JL		 4065 /* We must have a valid space and subspace. */
4066 pa_check_current_space_and_subspace ();
4067
025b0302
ME		 4068 pa_call_args (&last_call_desc);
4069 demand_empty_rest_of_line ();
025b0302
ME		 4070}
4071
8f78d0e9
KR		 4072/* Do the dirty work of building a call descriptor which describes
4073 where the caller placed arguments to a function call. */
4074
4075static void
025b0302 4076pa_call_args (call_desc)
8f78d0e9 4077 struct call_desc *call_desc;
025b0302 4078{
8f78d0e9
KR		 4079 char *name, c, *p;
4080 unsigned int temp, arg_reloc;
025b0302
ME		 4081
4082 while (!is_end_of_statement ())
4083 {
4084 name = input_line_pointer;
4085 c = get_symbol_end ();
8f78d0e9 4086 /* Process a source argument. */
025b0302
ME		 4087 if ((strncasecmp (name, "argw", 4) == 0))
4088 {
4089 temp = atoi (name + 4);
4090 p = input_line_pointer;
4091 *p = c;
4092 input_line_pointer++;
4093 name = input_line_pointer;
4094 c = get_symbol_end ();
4095 arg_reloc = pa_build_arg_reloc (name);
4096 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
4097 }
8f78d0e9 4098 /* Process a return value. */
025b0302
ME		 4099 else if ((strncasecmp (name, "rtnval", 6) == 0))
4100 {
4101 p = input_line_pointer;
4102 *p = c;
4103 input_line_pointer++;
4104 name = input_line_pointer;
4105 c = get_symbol_end ();
4106 arg_reloc = pa_build_arg_reloc (name);
4107 call_desc->arg_reloc |= (arg_reloc & 0x3);
4108 }
4109 else
4110 {
8f78d0e9 4111 as_bad ("Invalid .CALL argument: %s", name);
025b0302
ME		 4112 }
4113 p = input_line_pointer;
4114 *p = c;
4115 if (!is_end_of_statement ())
4116 input_line_pointer++;
4117 }
4118}
4119
8f78d0e9
KR		 4120/* Return TRUE if FRAG1 and FRAG2 are the same. */
4121
025b0302 4122static int
8f78d0e9
KR		 4123is_same_frag (frag1, frag2)
4124 fragS *frag1;
4125 fragS *frag2;
025b0302
ME		 4126{
4127
8f78d0e9 4128 if (frag1 == NULL)
025b0302 4129 return (FALSE);
8f78d0e9 4130 else if (frag2 == NULL)
025b0302 4131 return (FALSE);
8f78d0e9 4132 else if (frag1 == frag2)
025b0302 4133 return (TRUE);
8f78d0e9
KR		 4134 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
4135 return (is_same_frag (frag1, frag2->fr_next));
025b0302
ME		 4136 else
4137 return (FALSE);
4138}
4139
ff852e11 4140#ifdef OBJ_ELF
75c28b49 4141/* Build an entry in the UNWIND subspace from the given function
ff852e11
JL		 4142 attributes in CALL_INFO. This is not needed for SOM as using
4143 R_ENTRY and R_EXIT relocations allow the linker to handle building
4144 of the unwind spaces. */
c5e9ccd0 4145
025b0302
ME		 4146static void
4147pa_build_unwind_subspace (call_info)
8f78d0e9 4148 struct call_info *call_info;
025b0302 4149{
8f78d0e9
KR		 4150 char *unwind;
4151 asection *seg, *save_seg;
025b0302
ME		 4152 subsegT subseg, save_subseg;
4153 int i;
8f78d0e9
KR		 4154 char c, *p;
4155
4156 /* Get into the right seg/subseg. This may involve creating
4157 the seg the first time through. Make sure to have the
4158 old seg/subseg so that we can reset things when we are done. */
4159 subseg = SUBSEG_UNWIND;
4160 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
4161 if (seg == ASEC_NULL)
025b0302 4162 {
8f78d0e9
KR		 4163 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
4164 bfd_set_section_flags (stdoutput, seg,
4165 SEC_READONLY | SEC_HAS_CONTENTS
4166 | SEC_LOAD | SEC_RELOC);
025b0302
ME		 4167 }
4168
025b0302
ME		 4169 save_seg = now_seg;
4170 save_subseg = now_subseg;
80aab579 4171 subseg_set (seg, subseg);
025b0302 4172
8f78d0e9
KR		 4173
4174 /* Get some space to hold relocation information for the unwind
4175 descriptor. */
025b0302 4176 p = frag_more (4);
249c7415 4177 md_number_to_chars (p, 0, 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,
75c28b49 4182 (expressionS *) NULL, 0, R_PARISC_DIR32, e_fsel, 32, 0, NULL);
025b0302 4183
025b0302 4184 p = frag_more (4);
249c7415 4185 md_number_to_chars (p, 0, 4);
025b0302 4186
4ff6f92a
JL		 4187 /* Relocation info. for end offset of the function.
4188
4189 Because we allow reductions of 32bit relocations for ELF, this will be
4190 reduced to section_sym + offset which avoids putting the temporary
4191 symbol into the symbol table. It (should) end up giving the same
4192 value as call_info->start_symbol + function size once the linker is
4193 finished with its work. */
4194
8f78d0e9 4195 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4ff6f92a 4196 call_info->end_symbol, (offsetT) 0,
75c28b49 4197 (expressionS *) NULL, 0, R_PARISC_DIR32, e_fsel, 32, 0, NULL);
025b0302 4198
8f78d0e9
KR		 4199 /* Dump it. */
4200 unwind = (char *) &call_info->ci_unwind;
4201 for (i = 8; i < sizeof (struct unwind_table); i++)
025b0302 4202 {
8f78d0e9 4203 c = *(unwind + i);
025b0302
ME		 4204 {
4205 FRAG_APPEND_1_CHAR (c);
4206 }
4207 }
4208
8f78d0e9 4209 /* Return back to the original segment/subsegment. */
80aab579 4210 subseg_set (save_seg, save_subseg);
025b0302 4211}
ff852e11 4212#endif
025b0302 4213
8f78d0e9
KR		 4214/* Process a .CALLINFO pseudo-op. This information is used later
4215 to build unwind descriptors and maybe one day to support
4216 .ENTER and .LEAVE. */
025b0302 4217
8f78d0e9
KR		 4218static void
4219pa_callinfo (unused)
4220 int unused;
025b0302 4221{
8f78d0e9
KR		 4222 char *name, c, *p;
4223 int temp;
025b0302 4224
60937ce7
JL		 4225 /* We must have a valid space and subspace. */
4226 pa_check_current_space_and_subspace ();
4227
8f78d0e9 4228 /* .CALLINFO must appear within a procedure definition. */
025b0302
ME		 4229 if (!within_procedure)
4230 as_bad (".callinfo is not within a procedure definition");
4231
8f78d0e9
KR		 4232 /* Mark the fact that we found the .CALLINFO for the
4233 current procedure. */
025b0302
ME		 4234 callinfo_found = TRUE;
4235
8f78d0e9 4236 /* Iterate over the .CALLINFO arguments. */
025b0302
ME		 4237 while (!is_end_of_statement ())
4238 {
4239 name = input_line_pointer;
4240 c = get_symbol_end ();
8f78d0e9 4241 /* Frame size specification. */
025b0302
ME		 4242 if ((strncasecmp (name, "frame", 5) == 0))
4243 {
4244 p = input_line_pointer;
4245 *p = c;
4246 input_line_pointer++;
4247 temp = get_absolute_expression ();
4248 if ((temp & 0x3) != 0)
4249 {
4250 as_bad ("FRAME parameter must be a multiple of 8: %d\n", temp);
4251 temp = 0;
4252 }
49fc68a1 4253
c5e9ccd0 4254 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
49fc68a1
JL		 4255 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
4256
025b0302 4257 }
8f78d0e9 4258 /* Entry register (GR, GR and SR) specifications. */
025b0302
ME		 4259 else if ((strncasecmp (name, "entry_gr", 8) == 0))
4260 {
4261 p = input_line_pointer;
4262 *p = c;
4263 input_line_pointer++;
4264 temp = get_absolute_expression ();
aa8b30ed 4265 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
75c28b49 4266 even though %r19 is caller saved. I think this is a bug in
aa8b30ed
JL		 4267 the HP assembler, and we are not going to emulate it. */
4268 if (temp < 3 || temp > 18)
4269 as_bad ("Value for ENTRY_GR must be in the range 3..18\n");
4270 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
025b0302
ME		 4271 }
4272 else if ((strncasecmp (name, "entry_fr", 8) == 0))
4273 {
4274 p = input_line_pointer;
4275 *p = c;
4276 input_line_pointer++;
4277 temp = get_absolute_expression ();
75c28b49 4278 /* Similarly the HP assembler takes 31 as the high bound even
aa8b30ed
JL		 4279 though %fr21 is the last callee saved floating point register. */
4280 if (temp < 12 || temp > 21)
4281 as_bad ("Value for ENTRY_FR must be in the range 12..21\n");
4282 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
025b0302
ME		 4283 }
4284 else if ((strncasecmp (name, "entry_sr", 8) == 0))
4285 {
4286 p = input_line_pointer;
4287 *p = c;
4288 input_line_pointer++;
4289 temp = get_absolute_expression ();
aa8b30ed
JL		 4290 if (temp != 3)
4291 as_bad ("Value for ENTRY_SR must be 3\n");
025b0302 4292 }
8f78d0e9 4293 /* Note whether or not this function performs any calls. */
025b0302
ME		 4294 else if ((strncasecmp (name, "calls", 5) == 0) ||
4295 (strncasecmp (name, "caller", 6) == 0))
4296 {
4297 p = input_line_pointer;
4298 *p = c;
025b0302
ME		 4299 }
4300 else if ((strncasecmp (name, "no_calls", 8) == 0))
4301 {
4302 p = input_line_pointer;
4303 *p = c;
025b0302 4304 }
8f78d0e9 4305 /* Should RP be saved into the stack. */
025b0302
ME		 4306 else if ((strncasecmp (name, "save_rp", 7) == 0))
4307 {
4308 p = input_line_pointer;
4309 *p = c;
4310 last_call_info->ci_unwind.descriptor.save_rp = 1;
4311 }
8f78d0e9 4312 /* Likewise for SP. */
025b0302
ME		 4313 else if ((strncasecmp (name, "save_sp", 7) == 0))
4314 {
4315 p = input_line_pointer;
4316 *p = c;
4317 last_call_info->ci_unwind.descriptor.save_sp = 1;
4318 }
8f78d0e9 4319 /* Is this an unwindable procedure. If so mark it so
c5e9ccd0 4320 in the unwind descriptor. */
025b0302
ME		 4321 else if ((strncasecmp (name, "no_unwind", 9) == 0))
4322 {
4323 p = input_line_pointer;
4324 *p = c;
4325 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
4326 }
8f78d0e9 4327 /* Is this an interrupt routine. If so mark it in the
c5e9ccd0 4328 unwind descriptor. */
025b0302
ME		 4329 else if ((strncasecmp (name, "hpux_int", 7) == 0))
4330 {
4331 p = input_line_pointer;
4332 *p = c;
8f78d0e9 4333 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
025b0302 4334 }
f2ada910
JL		 4335 /* Is this a millicode routine. "millicode" isn't in my
4336 assembler manual, but my copy is old. The HP assembler
4337 accepts it, and there's a place in the unwind descriptor
4338 to drop the information, so we'll accept it too. */
4339 else if ((strncasecmp (name, "millicode", 9) == 0))
4340 {
4341 p = input_line_pointer;
4342 *p = c;
4343 last_call_info->ci_unwind.descriptor.millicode = 1;
4344 }
025b0302
ME		 4345 else
4346 {
8f78d0e9 4347 as_bad ("Invalid .CALLINFO argument: %s", name);
f2ada910 4348 *input_line_pointer = c;
025b0302
ME		 4349 }
4350 if (!is_end_of_statement ())
4351 input_line_pointer++;
4352 }
4353
4354 demand_empty_rest_of_line ();
025b0302
ME		 4355}
4356
8f78d0e9
KR		 4357/* Switch into the code subspace. */
4358
4359static void
4360pa_code (unused)
4361 int unused;
025b0302 4362{
60937ce7
JL		 4363 current_space = is_defined_space ("$TEXT$");
4364 current_subspace
4365 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
4366 s_text (0);
4367 pa_undefine_label ();
025b0302
ME		 4368}
4369
8f78d0e9
KR		 4370/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4371 the .comm pseudo-op has the following symtax:
025b0302 4372
8f78d0e9
KR		 4373 <label> .comm <length>
4374
4375 where <label> is optional and is a symbol whose address will be the start of
4376 a block of memory <length> bytes long. <length> must be an absolute
4377 expression. <length> bytes will be allocated in the current space
4829cd65
JL		 4378 and subspace.
4379
4380 Also note the label may not even be on the same line as the .comm.
4381
4382 This difference in syntax means the colon function will be called
4383 on the symbol before we arrive in pa_comm. colon will set a number
4384 of attributes of the symbol that need to be fixed here. In particular
4385 the value, section pointer, fragment pointer, flags, etc. What
4386 a pain.
4387
4388 This also makes error detection all but impossible. */
8f78d0e9
KR		 4389
4390static void
4391pa_comm (unused)
4392 int unused;
025b0302 4393{
8f78d0e9
KR		 4394 unsigned int size;
4395 symbolS *symbol;
4396 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4397
8f78d0e9
KR		 4398 if (label_symbol)
4399 symbol = label_symbol->lss_label;
025b0302 4400 else
8f78d0e9 4401 symbol = NULL;
025b0302
ME		 4402
4403 SKIP_WHITESPACE ();
8f78d0e9 4404 size = get_absolute_expression ();
025b0302 4405
8f78d0e9 4406 if (symbol)
025b0302 4407 {
4829cd65
JL		 4408 S_SET_VALUE (symbol, size);
4409 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
4410 S_SET_EXTERNAL (symbol);
2cffb4f4 4411
4829cd65
JL		 4412 /* colon() has already set the frag to the current location in the
4413 current subspace; we need to reset the fragment to the zero address
4414 fragment. We also need to reset the segment pointer. */
4415 symbol->sy_frag = &zero_address_frag;
025b0302 4416 }
025b0302
ME		 4417 demand_empty_rest_of_line ();
4418}
4419
8f78d0e9 4420/* Process a .END pseudo-op. */
025b0302 4421
8f78d0e9
KR		 4422static void
4423pa_end (unused)
4424 int unused;
4425{
025b0302 4426 demand_empty_rest_of_line ();
025b0302
ME		 4427}
4428
c5e9ccd0 4429/* Process a .ENTER pseudo-op. This is not supported. */
8f78d0e9
KR		 4430static void
4431pa_enter (unused)
4432 int unused;
025b0302 4433{
60937ce7
JL		 4434 /* We must have a valid space and subspace. */
4435 pa_check_current_space_and_subspace ();
4436
c5e9ccd0 4437 abort ();
025b0302
ME		 4438}
4439
8f78d0e9
KR		 4440/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4441 procesure. */
4442static void
4443pa_entry (unused)
4444 int unused;
025b0302 4445{
60937ce7
JL		 4446 /* We must have a valid space and subspace. */
4447 pa_check_current_space_and_subspace ();
4448
025b0302
ME		 4449 if (!within_procedure)
4450 as_bad ("Misplaced .entry. Ignored.");
4451 else
4452 {
4453 if (!callinfo_found)
4454 as_bad ("Missing .callinfo.");
025b0302
ME		 4455 }
4456 demand_empty_rest_of_line ();
4457 within_entry_exit = TRUE;
8f78d0e9 4458
ff852e11
JL		 4459#ifdef OBJ_SOM
4460 /* SOM defers building of unwind descriptors until the link phase.
4461 The assembler is responsible for creating an R_ENTRY relocation
4462 to mark the beginning of a region and hold the unwind bits, and
4463 for creating an R_EXIT relocation to mark the end of the region.
4464
4465 FIXME. ELF should be using the same conventions! The problem
4466 is an unwind requires too much relocation space. Hmmm. Maybe
4467 if we split the unwind bits up between the relocations which
4468 denote the entry and exit points. */
86066d06
JL		 4469 if (last_call_info->start_symbol != NULL)
4470 {
4471 char *where = frag_more (0);
c5e9ccd0 4472
86066d06 4473 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
75c28b49 4474 NULL, (offsetT) 0, NULL,
86066d06 4475 0, R_HPPA_ENTRY, e_fsel, 0, 0,
75c28b49 4476 (int *) &last_call_info->ci_unwind.descriptor);
86066d06 4477 }
ff852e11 4478#endif
025b0302
ME		 4479}
4480
8f78d0e9
KR		 4481/* Handle a .EQU pseudo-op. */
4482
4483static void
025b0302
ME		 4484pa_equ (reg)
4485 int reg;
4486{
8f78d0e9
KR		 4487 label_symbol_struct *label_symbol = pa_get_label ();
4488 symbolS *symbol;
025b0302 4489
8f78d0e9 4490 if (label_symbol)
025b0302 4491 {
8f78d0e9 4492 symbol = label_symbol->lss_label;
c38c91da
JL		 4493 if (reg)
4494 S_SET_VALUE (symbol, pa_parse_number (&input_line_pointer, 0));
4495 else
4496 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
75c28b49 4497 S_SET_SEGMENT (symbol, bfd_abs_section_ptr);
025b0302
ME		 4498 }
4499 else
4500 {
4501 if (reg)
4502 as_bad (".REG must use a label");
4503 else
4504 as_bad (".EQU must use a label");
4505 }
4506
4507 pa_undefine_label ();
4508 demand_empty_rest_of_line ();
025b0302
ME		 4509}
4510
8f78d0e9
KR		 4511/* Helper function. Does processing for the end of a function. This
4512 usually involves creating some relocations or building special
4513 symbols to mark the end of the function. */
4514
4515static void
025b0302
ME		 4516process_exit ()
4517{
4518 char *where;
4519
4520 where = frag_more (0);
aa8b30ed 4521
ff852e11 4522#ifdef OBJ_ELF
44c0de53
JL		 4523 /* Mark the end of the function, stuff away the location of the frag
4524 for the end of the function, and finally call pa_build_unwind_subspace
4525 to add an entry in the unwind table. */
4ff6f92a 4526 hppa_elf_mark_end_of_function ();
025b0302 4527 pa_build_unwind_subspace (last_call_info);
ff852e11
JL		 4528#else
4529 /* SOM defers building of unwind descriptors until the link phase.
4530 The assembler is responsible for creating an R_ENTRY relocation
4531 to mark the beginning of a region and hold the unwind bits, and
4532 for creating an R_EXIT relocation to mark the end of the region.
4533
4534 FIXME. ELF should be using the same conventions! The problem
4535 is an unwind requires too much relocation space. Hmmm. Maybe
4536 if we split the unwind bits up between the relocations which
4537 denote the entry and exit points. */
4538 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
75c28b49
JL		 4539 NULL, (offsetT) 0,
4540 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0,
4541 (int *) &last_call_info->ci_unwind.descriptor + 1);
ff852e11 4542#endif
025b0302
ME		 4543}
4544
8f78d0e9 4545/* Process a .EXIT pseudo-op. */
025b0302 4546
8f78d0e9
KR		 4547static void
4548pa_exit (unused)
4549 int unused;
4550{
60937ce7
JL		 4551 /* We must have a valid space and subspace. */
4552 pa_check_current_space_and_subspace ();
4553
025b0302
ME		 4554 if (!within_procedure)
4555 as_bad (".EXIT must appear within a procedure");
4556 else
4557 {
4558 if (!callinfo_found)
4559 as_bad ("Missing .callinfo");
4560 else
4561 {
4562 if (!within_entry_exit)
4563 as_bad ("No .ENTRY for this .EXIT");
4564 else
4565 {
4566 within_entry_exit = FALSE;
4567 process_exit ();
4568 }
4569 }
4570 }
4571 demand_empty_rest_of_line ();
025b0302
ME		 4572}
4573
8f78d0e9 4574/* Process a .EXPORT directive. This makes functions external
75c28b49 4575 and provides information such as argument relocation entries
8f78d0e9 4576 to callers. */
5cf4cd1b 4577
8f78d0e9
KR		 4578static void
4579pa_export (unused)
4580 int unused;
025b0302 4581{
8f78d0e9
KR		 4582 char *name, c, *p;
4583 symbolS *symbol;
025b0302
ME		 4584
4585 name = input_line_pointer;
4586 c = get_symbol_end ();
8f78d0e9
KR		 4587 /* Make sure the given symbol exists. */
4588 if ((symbol = symbol_find_or_make (name)) == NULL)
025b0302
ME		 4589 {
4590 as_bad ("Cannot define export symbol: %s\n", name);
4591 p = input_line_pointer;
4592 *p = c;
4593 input_line_pointer++;
4594 }
4595 else
4596 {
8f78d0e9
KR		 4597 /* OK. Set the external bits and process argument relocations. */
4598 S_SET_EXTERNAL (symbol);
025b0302
ME		 4599 p = input_line_pointer;
4600 *p = c;
4601 if (!is_end_of_statement ())
4602 {
4603 input_line_pointer++;
48153d49 4604 pa_type_args (symbol, 1);
025b0302
ME		 4605 }
4606 }
4607
4608 demand_empty_rest_of_line ();
025b0302
ME		 4609}
4610
8f78d0e9
KR		 4611/* Helper function to process arguments to a .EXPORT pseudo-op. */
4612
4613static void
48153d49 4614pa_type_args (symbolP, is_export)
8f78d0e9 4615 symbolS *symbolP;
48153d49 4616 int is_export;
025b0302 4617{
8f78d0e9
KR		 4618 char *name, c, *p;
4619 unsigned int temp, arg_reloc;
e75acd68 4620 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
8f78d0e9 4621 obj_symbol_type *symbol = (obj_symbol_type *) symbolP->bsym;
025b0302
ME		 4622
4623 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
48153d49 4624
025b0302
ME		 4625 {
4626 input_line_pointer += 8;
9a182533 4627 symbolP->bsym->flags &= ~BSF_FUNCTION;
75c28b49 4628 S_SET_SEGMENT (symbolP, bfd_abs_section_ptr);
e75acd68 4629 type = SYMBOL_TYPE_ABSOLUTE;
025b0302
ME		 4630 }
4631 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
9a182533
JL		 4632 {
4633 input_line_pointer += 4;
a721c80b 4634 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
c5e9ccd0 4635 instead one should be IMPORTing/EXPORTing ENTRY types.
a721c80b 4636
c5e9ccd0
JL		 4637 Complain if one tries to EXPORT a CODE type since that's never
4638 done. Both GCC and HP C still try to IMPORT CODE types, so
4639 silently fix them to be ENTRY types. */
a721c80b 4640 if (symbolP->bsym->flags & BSF_FUNCTION)
48153d49 4641 {
a721c80b
JL		 4642 if (is_export)
4643 as_tsktsk ("Using ENTRY rather than CODE in export directive for %s", symbolP->bsym->name);
4644
48153d49
JL		 4645 symbolP->bsym->flags |= BSF_FUNCTION;
4646 type = SYMBOL_TYPE_ENTRY;
4647 }
4648 else
4649 {
4650 symbolP->bsym->flags &= ~BSF_FUNCTION;
4651 type = SYMBOL_TYPE_CODE;
4652 }
9a182533 4653 }
025b0302 4654 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
9a182533
JL		 4655 {
4656 input_line_pointer += 4;
4657 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4658 type = SYMBOL_TYPE_DATA;
9a182533 4659 }
025b0302
ME		 4660 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
4661 {
4662 input_line_pointer += 5;
025b0302 4663 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4664 type = SYMBOL_TYPE_ENTRY;
025b0302
ME		 4665 }
4666 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
4667 {
4668 input_line_pointer += 9;
9a182533 4669 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4670 type = SYMBOL_TYPE_MILLICODE;
025b0302
ME		 4671 }
4672 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
4673 {
4674 input_line_pointer += 6;
9a182533 4675 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4676 type = SYMBOL_TYPE_PLABEL;
025b0302
ME		 4677 }
4678 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
4679 {
4680 input_line_pointer += 8;
9a182533 4681 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4682 type = SYMBOL_TYPE_PRI_PROG;
025b0302
ME		 4683 }
4684 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
4685 {
4686 input_line_pointer += 8;
9a182533 4687 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4688 type = SYMBOL_TYPE_SEC_PROG;
025b0302
ME		 4689 }
4690
e75acd68
JL		 4691 /* SOM requires much more information about symbol types
4692 than BFD understands. This is how we get this information
4693 to the SOM BFD backend. */
4694#ifdef obj_set_symbol_type
4695 obj_set_symbol_type (symbolP->bsym, (int) type);
4696#endif
4697
8f78d0e9
KR		 4698 /* Now that the type of the exported symbol has been handled,
4699 handle any argument relocation information. */
025b0302
ME		 4700 while (!is_end_of_statement ())
4701 {
4702 if (*input_line_pointer == ',')
4703 input_line_pointer++;
4704 name = input_line_pointer;
4705 c = get_symbol_end ();
8f78d0e9 4706 /* Argument sources. */
025b0302
ME		 4707 if ((strncasecmp (name, "argw", 4) == 0))
4708 {
4709 p = input_line_pointer;
4710 *p = c;
4711 input_line_pointer++;
4712 temp = atoi (name + 4);
4713 name = input_line_pointer;
4714 c = get_symbol_end ();
4715 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
8f78d0e9 4716 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4717 *input_line_pointer = c;
4718 }
8f78d0e9 4719 /* The return value. */
025b0302
ME		 4720 else if ((strncasecmp (name, "rtnval", 6)) == 0)
4721 {
4722 p = input_line_pointer;
4723 *p = c;
4724 input_line_pointer++;
4725 name = input_line_pointer;
4726 c = get_symbol_end ();
4727 arg_reloc = pa_build_arg_reloc (name);
8f78d0e9 4728 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4729 *input_line_pointer = c;
4730 }
8f78d0e9 4731 /* Privelege level. */
025b0302
ME		 4732 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
4733 {
4734 p = input_line_pointer;
4735 *p = c;
4736 input_line_pointer++;
025b0302
ME		 4737 temp = atoi (input_line_pointer);
4738 c = get_symbol_end ();
4739 *input_line_pointer = c;
025b0302
ME		 4740 }
4741 else
4742 {
4743 as_bad ("Undefined .EXPORT/.IMPORT argument (ignored): %s", name);
4744 p = input_line_pointer;
4745 *p = c;
4746 }
4747 if (!is_end_of_statement ())
4748 input_line_pointer++;
4749 }
4750}
4751
8f78d0e9
KR		 4752/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
4753 assembly file must either be defined in the assembly file, or
4754 explicitly IMPORTED from another. */
4755
4756static void
4757pa_import (unused)
4758 int unused;
025b0302 4759{
8f78d0e9
KR		 4760 char *name, c, *p;
4761 symbolS *symbol;
025b0302
ME		 4762
4763 name = input_line_pointer;
4764 c = get_symbol_end ();
025b0302 4765
49ccc555
JL		 4766 symbol = symbol_find (name);
4767 /* Ugh. We might be importing a symbol defined earlier in the file,
4768 in which case all the code below will really screw things up
4769 (set the wrong segment, symbol flags & type, etc). */
4770 if (symbol == NULL || !S_IS_DEFINED (symbol))
025b0302 4771 {
49ccc555
JL		 4772 symbol = symbol_find_or_make (name);
4773 p = input_line_pointer;
4774 *p = c;
4775
4776 if (!is_end_of_statement ())
4777 {
4778 input_line_pointer++;
4779 pa_type_args (symbol, 0);
4780 }
4781 else
4782 {
4783 /* Sigh. To be compatable with the HP assembler and to help
75c28b49 4784 poorly written assembly code, we assign a type based on
49ccc555
JL		 4785 the the current segment. Note only BSF_FUNCTION really
4786 matters, we do not need to set the full SYMBOL_TYPE_* info. */
4787 if (now_seg == text_section)
4788 symbol->bsym->flags |= BSF_FUNCTION;
4789
4790 /* If the section is undefined, then the symbol is undefined
4791 Since this is an import, leave the section undefined. */
75c28b49 4792 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
49ccc555 4793 }
025b0302
ME		 4794 }
4795 else
4796 {
49ccc555
JL		 4797 /* The symbol was already defined. Just eat everything up to
4798 the end of the current statement. */
4799 while (!is_end_of_statement ())
4800 input_line_pointer++;
025b0302
ME		 4801 }
4802
025b0302 4803 demand_empty_rest_of_line ();
025b0302
ME		 4804}
4805
8f78d0e9
KR		 4806/* Handle a .LABEL pseudo-op. */
4807
4808static void
4809pa_label (unused)
4810 int unused;
025b0302 4811{
8f78d0e9 4812 char *name, c, *p;
025b0302
ME		 4813
4814 name = input_line_pointer;
4815 c = get_symbol_end ();
025b0302
ME		 4816
4817 if (strlen (name) > 0)
4818 {
4819 colon (name);
4820 p = input_line_pointer;
4821 *p = c;
4822 }
4823 else
4824 {
4825 as_warn ("Missing label name on .LABEL");
4826 }
4827
4828 if (!is_end_of_statement ())
4829 {
4830 as_warn ("extra .LABEL arguments ignored.");
4831 ignore_rest_of_line ();
4832 }
4833 demand_empty_rest_of_line ();
025b0302
ME		 4834}
4835
8f78d0e9 4836/* Handle a .LEAVE pseudo-op. This is not supported yet. */
025b0302 4837
8f78d0e9
KR		 4838static void
4839pa_leave (unused)
4840 int unused;
4841{
60937ce7
JL		 4842 /* We must have a valid space and subspace. */
4843 pa_check_current_space_and_subspace ();
4844
c5e9ccd0 4845 abort ();
025b0302
ME		 4846}
4847
8f78d0e9
KR		 4848/* Handle a .ORIGIN pseudo-op. */
4849
4850static void
4851pa_origin (unused)
4852 int unused;
025b0302 4853{
60937ce7
JL		 4854 /* We must have a valid space and subspace. */
4855 pa_check_current_space_and_subspace ();
4856
8f78d0e9 4857 s_org (0);
025b0302 4858 pa_undefine_label ();
025b0302
ME		 4859}
4860
8f78d0e9
KR		 4861/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
4862 is for static functions. FIXME. Should share more code with .EXPORT. */
5cf4cd1b 4863
8f78d0e9
KR		 4864static void
4865pa_param (unused)
4866 int unused;
5cf4cd1b 4867{
8f78d0e9
KR		 4868 char *name, c, *p;
4869 symbolS *symbol;
5cf4cd1b
KR		 4870
4871 name = input_line_pointer;
4872 c = get_symbol_end ();
5cf4cd1b 4873
8f78d0e9 4874 if ((symbol = symbol_find_or_make (name)) == NULL)
5cf4cd1b
KR		 4875 {
4876 as_bad ("Cannot define static symbol: %s\n", name);
4877 p = input_line_pointer;
4878 *p = c;
4879 input_line_pointer++;
4880 }
4881 else
4882 {
8f78d0e9 4883 S_CLEAR_EXTERNAL (symbol);
5cf4cd1b
KR		 4884 p = input_line_pointer;
4885 *p = c;
4886 if (!is_end_of_statement ())
4887 {
4888 input_line_pointer++;
48153d49 4889 pa_type_args (symbol, 0);
5cf4cd1b
KR		 4890 }
4891 }
4892
4893 demand_empty_rest_of_line ();
5cf4cd1b
KR		 4894}
4895
8f78d0e9
KR		 4896/* Handle a .PROC pseudo-op. It is used to mark the beginning
4897 of a procedure from a syntatical point of view. */
4898
4899static void
4900pa_proc (unused)
4901 int unused;
025b0302 4902{
8f78d0e9 4903 struct call_info *call_info;
60937ce7
JL		 4904
4905 /* We must have a valid space and subspace. */
4906 pa_check_current_space_and_subspace ();
4907
025b0302
ME		 4908 if (within_procedure)
4909 as_fatal ("Nested procedures");
4910
8f78d0e9 4911 /* Reset global variables for new procedure. */
025b0302
ME		 4912 callinfo_found = FALSE;
4913 within_procedure = TRUE;
025b0302 4914
8f78d0e9
KR		 4915 /* Create another call_info structure. */
4916 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
025b0302
ME		 4917
4918 if (!call_info)
4919 as_fatal ("Cannot allocate unwind descriptor\n");
4920
8f78d0e9 4921 bzero (call_info, sizeof (struct call_info));
025b0302
ME		 4922
4923 call_info->ci_next = NULL;
4924
4925 if (call_info_root == NULL)
4926 {
4927 call_info_root = call_info;
4928 last_call_info = call_info;
4929 }
4930 else
4931 {
4932 last_call_info->ci_next = call_info;
4933 last_call_info = call_info;
4934 }
4935
4936 /* set up defaults on call_info structure */
4937
4938 call_info->ci_unwind.descriptor.cannot_unwind = 0;
4939 call_info->ci_unwind.descriptor.region_desc = 1;
8f78d0e9 4940 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
025b0302
ME		 4941
4942 /* If we got a .PROC pseudo-op, we know that the function is defined
8f78d0e9 4943 locally. Make sure it gets into the symbol table. */
025b0302 4944 {
8f78d0e9 4945 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4946
8f78d0e9 4947 if (label_symbol)
025b0302 4948 {
8f78d0e9 4949 if (label_symbol->lss_label)
025b0302 4950 {
8f78d0e9
KR		 4951 last_call_info->start_symbol = label_symbol->lss_label;
4952 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
025b0302
ME		 4953 }
4954 else
4047ff1d 4955 as_bad ("Missing function name for .PROC (corrupted label chain)");
025b0302
ME		 4956 }
4957 else
4047ff1d 4958 last_call_info->start_symbol = NULL;
025b0302
ME		 4959 }
4960
4961 demand_empty_rest_of_line ();
025b0302
ME		 4962}
4963
75c28b49 4964/* Process the syntatical end of a procedure. Make sure all the
8f78d0e9
KR		 4965 appropriate pseudo-ops were found within the procedure. */
4966
4967static void
4968pa_procend (unused)
4969 int unused;
025b0302
ME		 4970{
4971
60937ce7
JL		 4972 /* We must have a valid space and subspace. */
4973 pa_check_current_space_and_subspace ();
4974
caed9e82
JL		 4975 /* If we are within a procedure definition, make sure we've
4976 defined a label for the procedure; handle case where the
75c28b49 4977 label was defined after the .PROC directive.
caed9e82
JL		 4978
4979 Note there's not need to diddle with the segment or fragment
4980 for the label symbol in this case. We have already switched
4981 into the new $CODE$ subspace at this point. */
4982 if (within_procedure && last_call_info->start_symbol == NULL)
4983 {
4984 label_symbol_struct *label_symbol = pa_get_label ();
4985
4986 if (label_symbol)
4987 {
4988 if (label_symbol->lss_label)
4989 {
4990 last_call_info->start_symbol = label_symbol->lss_label;
4991 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
4992#ifdef OBJ_SOM
4993 /* Also handle allocation of a fixup to hold the unwind
4994 information when the label appears after the proc/procend. */
4995 if (within_entry_exit)
4996 {
4997 char *where = frag_more (0);
4998
4999 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
75c28b49 5000 NULL, (offsetT) 0, NULL,
caed9e82 5001 0, R_HPPA_ENTRY, e_fsel, 0, 0,
75c28b49 5002 (int *) &last_call_info->ci_unwind.descriptor);
caed9e82
JL		 5003 }
5004#endif
5005 }
5006 else
5007 as_bad ("Missing function name for .PROC (corrupted label chain)");
5008 }
5009 else
5010 as_bad ("Missing function name for .PROC");
5011 }
05210990 5012
025b0302
ME		 5013 if (!within_procedure)
5014 as_bad ("misplaced .procend");
5015
5016 if (!callinfo_found)
5017 as_bad ("Missing .callinfo for this procedure");
5018
5019 if (within_entry_exit)
5020 as_bad ("Missing .EXIT for a .ENTRY");
5021
4ff6f92a
JL		 5022#ifdef OBJ_ELF
5023 /* ELF needs to mark the end of each function so that it can compute
5024 the size of the function (apparently its needed in the symbol table). */
5025 hppa_elf_mark_end_of_function ();
5026#endif
5027
025b0302
ME		 5028 within_procedure = FALSE;
5029 demand_empty_rest_of_line ();
fca59f9d 5030 pa_undefine_label ();
025b0302
ME		 5031}
5032
8f78d0e9
KR		 5033/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5034 then create a new space entry to hold the information specified
5035 by the parameters to the .SPACE directive. */
5036
5037static sd_chain_struct *
025b0302
ME		 5038pa_parse_space_stmt (space_name, create_flag)
5039 char *space_name;
5040 int create_flag;
5041{
8f78d0e9
KR		 5042 char *name, *ptemp, c;
5043 char loadable, defined, private, sort;
9de7c1fc 5044 int spnum, temp;
3b9a72c5 5045 asection *seg = NULL;
8f78d0e9 5046 sd_chain_struct *space;
025b0302
ME		 5047
5048 /* load default values */
5049 spnum = 0;
3b9a72c5 5050 sort = 0;
025b0302
ME		 5051 loadable = TRUE;
5052 defined = TRUE;
5053 private = FALSE;
4047ff1d 5054 if (strcmp (space_name, "$TEXT$") == 0)
025b0302 5055 {
0f3b419c 5056 seg = pa_def_spaces[0].segment;
9de7c1fc
JL		 5057 defined = pa_def_spaces[0].defined;
5058 private = pa_def_spaces[0].private;
0f3b419c 5059 sort = pa_def_spaces[0].sort;
9de7c1fc 5060 spnum = pa_def_spaces[0].spnum;
025b0302 5061 }
4047ff1d 5062 else if (strcmp (space_name, "$PRIVATE$") == 0)
025b0302 5063 {
0f3b419c 5064 seg = pa_def_spaces[1].segment;
9de7c1fc
JL		 5065 defined = pa_def_spaces[1].defined;
5066 private = pa_def_spaces[1].private;
0f3b419c 5067 sort = pa_def_spaces[1].sort;
9de7c1fc 5068 spnum = pa_def_spaces[1].spnum;
025b0302
ME		 5069 }
5070
5071 if (!is_end_of_statement ())
5072 {
5073 print_errors = FALSE;
5074 ptemp = input_line_pointer + 1;
8f78d0e9 5075 /* First see if the space was specified as a number rather than
75c28b49 5076 as a name. According to the PA assembly manual the rest of
8f78d0e9 5077 the line should be ignored. */
9de7c1fc
JL		 5078 temp = pa_parse_number (&ptemp, 0);
5079 if (temp >= 0)
5080 {
5081 spnum = temp;
5082 input_line_pointer = ptemp;
5083 }
025b0302
ME		 5084 else
5085 {
5086 while (!is_end_of_statement ())
5087 {
5088 input_line_pointer++;
5089 name = input_line_pointer;
5090 c = get_symbol_end ();
4047ff1d 5091 if ((strncasecmp (name, "spnum", 5) == 0))
025b0302 5092 {
8f78d0e9 5093 *input_line_pointer = c;
025b0302 5094 input_line_pointer++;
8f78d0e9 5095 spnum = get_absolute_expression ();
025b0302 5096 }
4047ff1d 5097 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302 5098 {
8f78d0e9 5099 *input_line_pointer = c;
025b0302 5100 input_line_pointer++;
8f78d0e9 5101 sort = get_absolute_expression ();
025b0302 5102 }
4047ff1d 5103 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302 5104 {
8f78d0e9 5105 *input_line_pointer = c;
025b0302
ME		 5106 loadable = FALSE;
5107 }
4047ff1d 5108 else if ((strncasecmp (name, "notdefined", 10) == 0))
025b0302 5109 {
8f78d0e9 5110 *input_line_pointer = c;
025b0302
ME		 5111 defined = FALSE;
5112 }
4047ff1d 5113 else if ((strncasecmp (name, "private", 7) == 0))
025b0302 5114 {
8f78d0e9 5115 *input_line_pointer = c;
025b0302
ME		 5116 private = TRUE;
5117 }
5118 else
3515a504
JL		 5119 {
5120 as_bad ("Invalid .SPACE argument");
5121 *input_line_pointer = c;
c5e9ccd0 5122 if (!is_end_of_statement ())
3515a504
JL		 5123 input_line_pointer++;
5124 }
025b0302
ME		 5125 }
5126 }
5127 print_errors = TRUE;
5128 }
8f78d0e9 5129
3b9a72c5
JL		 5130 if (create_flag && seg == NULL)
5131 seg = subseg_new (space_name, 0);
c5e9ccd0 5132
8f78d0e9 5133 /* If create_flag is nonzero, then create the new space with
75c28b49 5134 the attributes computed above. Else set the values in
8f78d0e9
KR		 5135 an already existing space -- this can only happen for
5136 the first occurence of a built-in space. */
025b0302 5137 if (create_flag)
8f78d0e9
KR		 5138 space = create_new_space (space_name, spnum, loadable, defined,
5139 private, sort, seg, 1);
025b0302 5140 else
8f78d0e9 5141 {
025b0302
ME		 5142 space = is_defined_space (space_name);
5143 SPACE_SPNUM (space) = spnum;
025b0302 5144 SPACE_DEFINED (space) = defined & 1;
8f78d0e9 5145 SPACE_USER_DEFINED (space) = 1;
025b0302 5146 }
548ea75b
JL		 5147
5148#ifdef obj_set_section_attributes
5149 obj_set_section_attributes (seg, defined, private, sort, spnum);
5150#endif
5151
025b0302
ME		 5152 return space;
5153}
5154
8f78d0e9
KR		 5155/* Handle a .SPACE pseudo-op; this switches the current space to the
5156 given space, creating the new space if necessary. */
5157
5158static void
5159pa_space (unused)
5160 int unused;
025b0302 5161{
aa8b30ed 5162 char *name, c, *space_name, *save_s;
8f78d0e9
KR		 5163 int temp;
5164 sd_chain_struct *sd_chain;
025b0302
ME		 5165
5166 if (within_procedure)
5167 {
5168 as_bad ("Can\'t change spaces within a procedure definition. Ignored");
5169 ignore_rest_of_line ();
5170 }
5171 else
5172 {
8f78d0e9
KR		 5173 /* Check for some of the predefined spaces. FIXME: most of the code
5174 below is repeated several times, can we extract the common parts
5175 and place them into a subroutine or something similar? */
4047ff1d
JL		 5176 /* FIXME Is this (and the next IF stmt) really right?
5177 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5178 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
025b0302
ME		 5179 {
5180 input_line_pointer += 6;
5181 sd_chain = is_defined_space ("$TEXT$");
5182 if (sd_chain == NULL)
5183 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
8f78d0e9 5184 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5185 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
5186
5187 current_space = sd_chain;
80aab579 5188 subseg_set (text_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5189 current_subspace
5190 = pa_subsegment_to_subspace (text_section,
5191 sd_chain->sd_last_subseg);
025b0302
ME		 5192 demand_empty_rest_of_line ();
5193 return;
5194 }
4047ff1d 5195 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
025b0302
ME		 5196 {
5197 input_line_pointer += 9;
5198 sd_chain = is_defined_space ("$PRIVATE$");
5199 if (sd_chain == NULL)
5200 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
8f78d0e9 5201 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5202 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
5203
5204 current_space = sd_chain;
80aab579 5205 subseg_set (data_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5206 current_subspace
5207 = pa_subsegment_to_subspace (data_section,
5208 sd_chain->sd_last_subseg);
025b0302
ME		 5209 demand_empty_rest_of_line ();
5210 return;
5211 }
8f78d0e9
KR		 5212 if (!strncasecmp (input_line_pointer,
5213 GDB_DEBUG_SPACE_NAME,
5214 strlen (GDB_DEBUG_SPACE_NAME)))
025b0302
ME		 5215 {
5216 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
5217 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
5218 if (sd_chain == NULL)
5219 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
8f78d0e9 5220 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5221 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
5222
5223 current_space = sd_chain;
80aab579 5224
5cf4cd1b 5225 {
8f78d0e9
KR		 5226 asection *gdb_section
5227 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
5228
8f78d0e9
KR		 5229 subseg_set (gdb_section, sd_chain->sd_last_subseg);
5230 current_subspace
5231 = pa_subsegment_to_subspace (gdb_section,
5232 sd_chain->sd_last_subseg);
5cf4cd1b 5233 }
025b0302
ME		 5234 demand_empty_rest_of_line ();
5235 return;
5236 }
5237
8f78d0e9 5238 /* It could be a space specified by number. */
aa8b30ed
JL		 5239 print_errors = 0;
5240 save_s = input_line_pointer;
8f78d0e9 5241 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
025b0302 5242 {
655f3ef4 5243 if ((sd_chain = pa_find_space_by_number (temp)))
025b0302
ME		 5244 {
5245 current_space = sd_chain;
8f78d0e9 5246
80aab579 5247 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5248 current_subspace
5249 = pa_subsegment_to_subspace (sd_chain->sd_seg,
5250 sd_chain->sd_last_subseg);
025b0302
ME		 5251 demand_empty_rest_of_line ();
5252 return;
5253 }
5254 }
5255
8f78d0e9 5256 /* Not a number, attempt to create a new space. */
aa8b30ed
JL		 5257 print_errors = 1;
5258 input_line_pointer = save_s;
025b0302
ME		 5259 name = input_line_pointer;
5260 c = get_symbol_end ();
8f78d0e9 5261 space_name = xmalloc (strlen (name) + 1);
025b0302
ME		 5262 strcpy (space_name, name);
5263 *input_line_pointer = c;
5264
5265 sd_chain = pa_parse_space_stmt (space_name, 1);
5266 current_space = sd_chain;
8f78d0e9 5267
80aab579 5268 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
025b0302
ME		 5269 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
5270 sd_chain->sd_last_subseg);
5271 demand_empty_rest_of_line ();
5272 }
025b0302
ME		 5273}
5274
c5e9ccd0 5275/* Switch to a new space. (I think). FIXME. */
8f78d0e9
KR		 5276
5277static void
5278pa_spnum (unused)
5279 int unused;
025b0302 5280{
8f78d0e9
KR		 5281 char *name;
5282 char c;
5283 char *p;
5284 sd_chain_struct *space;
025b0302
ME		 5285
5286 name = input_line_pointer;
5287 c = get_symbol_end ();
5288 space = is_defined_space (name);
5289 if (space)
5290 {
5291 p = frag_more (4);
025b0302
ME		 5292 md_number_to_chars (p, SPACE_SPNUM (space), 4);
5293 }
5294 else
5295 as_warn ("Undefined space: '%s' Assuming space number = 0.", name);
5296
5297 *input_line_pointer = c;
5298 demand_empty_rest_of_line ();
025b0302
ME		 5299}
5300
75c28b49 5301/* If VALUE is an exact power of two between zero and 2^31, then
aa8b30ed 5302 return log2 (VALUE). Else return -1. */
8f78d0e9
KR		 5303
5304static int
aa8b30ed 5305log2 (value)
025b0302
ME		 5306 int value;
5307{
8f78d0e9 5308 int shift = 0;
025b0302 5309
025b0302
ME		 5310 while ((1 << shift) != value && shift < 32)
5311 shift++;
5312
5313 if (shift >= 32)
aa8b30ed 5314 return -1;
8f78d0e9 5315 else
aa8b30ed 5316 return shift;
025b0302
ME		 5317}
5318
3b9a72c5 5319/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
75c28b49 5320 given subspace, creating the new subspace if necessary.
8f78d0e9 5321
75c28b49 5322 FIXME. Should mirror pa_space more closely, in particular how
8f78d0e9
KR		 5323 they're broken up into subroutines. */
5324
5325static void
83b59013
JL		 5326pa_subspace (create_new)
5327 int create_new;
025b0302 5328{
3b9a72c5 5329 char *name, *ss_name, *alias, c;
8f78d0e9 5330 char loadable, code_only, common, dup_common, zero, sort;
3b9a72c5 5331 int i, access, space_index, alignment, quadrant, applicable, flags;
8f78d0e9
KR		 5332 sd_chain_struct *space;
5333 ssd_chain_struct *ssd;
3b9a72c5 5334 asection *section;
025b0302 5335
60937ce7
JL		 5336 if (current_space == NULL)
5337 as_fatal ("Must be in a space before changing or declaring subspaces.\n");
5338
025b0302
ME		 5339 if (within_procedure)
5340 {
5341 as_bad ("Can\'t change subspaces within a procedure definition. Ignored");
5342 ignore_rest_of_line ();
5343 }
5344 else
5345 {
5346 name = input_line_pointer;
5347 c = get_symbol_end ();
025b0302
ME		 5348 ss_name = xmalloc (strlen (name) + 1);
5349 strcpy (ss_name, name);
025b0302
ME		 5350 *input_line_pointer = c;
5351
8f78d0e9 5352 /* Load default values. */
025b0302
ME		 5353 sort = 0;
5354 access = 0x7f;
5355 loadable = 1;
5356 common = 0;
5357 dup_common = 0;
5358 code_only = 0;
5359 zero = 0;
8f78d0e9 5360 space_index = ~0;
e67b3aa3 5361 alignment = 1;
025b0302 5362 quadrant = 0;
3b9a72c5 5363 alias = NULL;
025b0302 5364
3b9a72c5 5365 space = current_space;
83b59013
JL		 5366 if (create_new)
5367 ssd = NULL;
5368 else
5369 ssd = is_defined_subspace (ss_name);
47f45d66 5370 /* Allow user to override the builtin attributes of subspaces. But
c5e9ccd0 5371 only allow the attributes to be changed once! */
47f45d66 5372 if (ssd && SUBSPACE_DEFINED (ssd))
025b0302 5373 {
8f78d0e9 5374 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
dc1b1221 5375 current_subspace = ssd;
8f78d0e9
KR		 5376 if (!is_end_of_statement ())
5377 as_warn ("Parameters of an existing subspace can\'t be modified");
5378 demand_empty_rest_of_line ();
5379 return;
025b0302
ME		 5380 }
5381 else
5382 {
3b9a72c5
JL		 5383 /* A new subspace. Load default values if it matches one of
5384 the builtin subspaces. */
025b0302
ME		 5385 i = 0;
5386 while (pa_def_subspaces[i].name)
5387 {
5388 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
5389 {
5390 loadable = pa_def_subspaces[i].loadable;
5391 common = pa_def_subspaces[i].common;
5392 dup_common = pa_def_subspaces[i].dup_common;
5393 code_only = pa_def_subspaces[i].code_only;
5394 zero = pa_def_subspaces[i].zero;
5395 space_index = pa_def_subspaces[i].space_index;
8f78d0e9 5396 alignment = pa_def_subspaces[i].alignment;
025b0302
ME		 5397 quadrant = pa_def_subspaces[i].quadrant;
5398 access = pa_def_subspaces[i].access;
5399 sort = pa_def_subspaces[i].sort;
3b9a72c5
JL		 5400 if (USE_ALIASES && pa_def_subspaces[i].alias)
5401 alias = pa_def_subspaces[i].alias;
025b0302
ME		 5402 break;
5403 }
5404 i++;
5405 }
5406 }
5407
8f78d0e9
KR		 5408 /* We should be working with a new subspace now. Fill in
5409 any information as specified by the user. */
025b0302
ME		 5410 if (!is_end_of_statement ())
5411 {
5412 input_line_pointer++;
5413 while (!is_end_of_statement ())
5414 {
5415 name = input_line_pointer;
5416 c = get_symbol_end ();
4047ff1d 5417 if ((strncasecmp (name, "quad", 4) == 0))
025b0302
ME		 5418 {
5419 *input_line_pointer = c;
5420 input_line_pointer++;
8f78d0e9 5421 quadrant = get_absolute_expression ();
025b0302 5422 }
4047ff1d 5423 else if ((strncasecmp (name, "align", 5) == 0))
025b0302
ME		 5424 {
5425 *input_line_pointer = c;
5426 input_line_pointer++;
8f78d0e9 5427 alignment = get_absolute_expression ();
aa8b30ed 5428 if (log2 (alignment) == -1)
025b0302
ME		 5429 {
5430 as_bad ("Alignment must be a power of 2");
5431 alignment = 1;
5432 }
5433 }
4047ff1d 5434 else if ((strncasecmp (name, "access", 6) == 0))
025b0302
ME		 5435 {
5436 *input_line_pointer = c;
5437 input_line_pointer++;
8f78d0e9 5438 access = get_absolute_expression ();
025b0302 5439 }
4047ff1d 5440 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302
ME		 5441 {
5442 *input_line_pointer = c;
5443 input_line_pointer++;
8f78d0e9 5444 sort = get_absolute_expression ();
025b0302 5445 }
4047ff1d 5446 else if ((strncasecmp (name, "code_only", 9) == 0))
025b0302
ME		 5447 {
5448 *input_line_pointer = c;
5449 code_only = 1;
5450 }
4047ff1d 5451 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302
ME		 5452 {
5453 *input_line_pointer = c;
5454 loadable = 0;
5455 }
4047ff1d 5456 else if ((strncasecmp (name, "common", 6) == 0))
025b0302
ME		 5457 {
5458 *input_line_pointer = c;
5459 common = 1;
5460 }
4047ff1d 5461 else if ((strncasecmp (name, "dup_comm", 8) == 0))
025b0302
ME		 5462 {
5463 *input_line_pointer = c;
5464 dup_common = 1;
5465 }
4047ff1d 5466 else if ((strncasecmp (name, "zero", 4) == 0))
025b0302
ME		 5467 {
5468 *input_line_pointer = c;
5469 zero = 1;
5470 }
4047ff1d 5471 else if ((strncasecmp (name, "first", 5) == 0))
8f78d0e9 5472 as_bad ("FIRST not supported as a .SUBSPACE argument");
025b0302 5473 else
8f78d0e9 5474 as_bad ("Invalid .SUBSPACE argument");
025b0302
ME		 5475 if (!is_end_of_statement ())
5476 input_line_pointer++;
5477 }
5478 }
8f78d0e9 5479
3b9a72c5 5480 /* Compute a reasonable set of BFD flags based on the information
c5e9ccd0 5481 in the .subspace directive. */
3b9a72c5
JL		 5482 applicable = bfd_applicable_section_flags (stdoutput);
5483 flags = 0;
5484 if (loadable)
5485 flags |= (SEC_ALLOC | SEC_LOAD);
5486 if (code_only)
5487 flags |= SEC_CODE;
5488 if (common || dup_common)
5489 flags |= SEC_IS_COMMON;
5490
b8f7596c
JL		 5491 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
5492
3b9a72c5
JL		 5493 /* This is a zero-filled subspace (eg BSS). */
5494 if (zero)
b8f7596c 5495 flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
3b9a72c5 5496
3b9a72c5
JL		 5497 applicable &= flags;
5498
75c28b49 5499 /* If this is an existing subspace, then we want to use the
c5e9ccd0 5500 segment already associated with the subspace.
3b9a72c5 5501
c5e9ccd0
JL		 5502 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5503 lots of sections. It might be a problem in the PA ELF
5504 code, I do not know yet. For now avoid creating anything
5505 but the "standard" sections for ELF. */
83b59013
JL		 5506 if (create_new)
5507 section = subseg_force_new (ss_name, 0);
5508 else if (ssd)
3b9a72c5 5509 section = ssd->ssd_seg;
47f45d66 5510 else if (alias)
3b9a72c5 5511 section = subseg_new (alias, 0);
c5e9ccd0 5512 else if (!alias && USE_ALIASES)
3b9a72c5
JL		 5513 {
5514 as_warn ("Ignoring subspace decl due to ELF BFD bugs.");
5515 demand_empty_rest_of_line ();
5516 return;
5517 }
c5e9ccd0 5518 else
3b9a72c5
JL		 5519 section = subseg_new (ss_name, 0);
5520
b4682e51
JL		 5521 if (zero)
5522 seg_info (section)->bss = 1;
5523
3b9a72c5
JL		 5524 /* Now set the flags. */
5525 bfd_set_section_flags (stdoutput, section, applicable);
5526
5527 /* Record any alignment request for this section. */
5528 record_alignment (section, log2 (alignment));
5529
5530 /* Set the starting offset for this section. */
5531 bfd_set_section_vma (stdoutput, section,
5532 pa_subspace_start (space, quadrant));
c5e9ccd0 5533
8f78d0e9 5534 /* Now that all the flags are set, update an existing subspace,
3b9a72c5 5535 or create a new one. */
025b0302 5536 if (ssd)
3b9a72c5
JL		 5537
5538 current_subspace = update_subspace (space, ss_name, loadable,
5539 code_only, common, dup_common,
5540 sort, zero, access, space_index,
c5e9ccd0 5541 alignment, quadrant,
47f45d66 5542 section);
025b0302 5543 else
8f78d0e9
KR		 5544 current_subspace = create_new_subspace (space, ss_name, loadable,
5545 code_only, common,
5546 dup_common, zero, sort,
5547 access, space_index,
c5e9ccd0 5548 alignment, quadrant, section);
025b0302
ME		 5549
5550 demand_empty_rest_of_line ();
3b9a72c5 5551 current_subspace->ssd_seg = section;
80aab579 5552 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
025b0302 5553 }
47f45d66 5554 SUBSPACE_DEFINED (current_subspace) = 1;
025b0302
ME		 5555}
5556
025b0302 5557
8f78d0e9 5558/* Create default space and subspace dictionaries. */
025b0302 5559
c5e9ccd0 5560static void
025b0302
ME		 5561pa_spaces_begin ()
5562{
025b0302 5563 int i;
025b0302
ME		 5564
5565 space_dict_root = NULL;
5566 space_dict_last = NULL;
5567
025b0302
ME		 5568 i = 0;
5569 while (pa_def_spaces[i].name)
5570 {
3b9a72c5
JL		 5571 char *name;
5572
5573 /* Pick the right name to use for the new section. */
5574 if (pa_def_spaces[i].alias && USE_ALIASES)
5575 name = pa_def_spaces[i].alias;
025b0302 5576 else
c5e9ccd0 5577 name = pa_def_spaces[i].name;
025b0302 5578
3b9a72c5 5579 pa_def_spaces[i].segment = subseg_new (name, 0);
025b0302
ME		 5580 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
5581 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
8f78d0e9
KR		 5582 pa_def_spaces[i].private, pa_def_spaces[i].sort,
5583 pa_def_spaces[i].segment, 0);
025b0302
ME		 5584 i++;
5585 }
5586
5587 i = 0;
5588 while (pa_def_subspaces[i].name)
5589 {
3b9a72c5
JL		 5590 char *name;
5591 int applicable, subsegment;
5592 asection *segment = NULL;
5593 sd_chain_struct *space;
5594
5595 /* Pick the right name for the new section and pick the right
c5e9ccd0 5596 subsegment number. */
3b9a72c5 5597 if (pa_def_subspaces[i].alias && USE_ALIASES)
025b0302 5598 {
3b9a72c5
JL		 5599 name = pa_def_subspaces[i].alias;
5600 subsegment = pa_def_subspaces[i].subsegment;
025b0302
ME		 5601 }
5602 else
3b9a72c5
JL		 5603 {
5604 name = pa_def_subspaces[i].name;
5605 subsegment = 0;
5606 }
c5e9ccd0 5607
3b9a72c5
JL		 5608 /* Create the new section. */
5609 segment = subseg_new (name, subsegment);
5610
5611
5612 /* For SOM we want to replace the standard .text, .data, and .bss
9de7c1fc
JL		 5613 sections with our own. We also want to set BFD flags for
5614 all the built-in subspaces. */
c5e9ccd0 5615 if (!strcmp (pa_def_subspaces[i].name, "$CODE$") && !USE_ALIASES)
3b9a72c5
JL		 5616 {
5617 text_section = segment;
5618 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5619 bfd_set_section_flags (stdoutput, segment,
c5e9ccd0
JL		 5620 applicable & (SEC_ALLOC | SEC_LOAD
5621 | SEC_RELOC | SEC_CODE
5622 | SEC_READONLY
3b9a72c5
JL		 5623 | SEC_HAS_CONTENTS));
5624 }
c5e9ccd0 5625 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$") && !USE_ALIASES)
3b9a72c5
JL		 5626 {
5627 data_section = segment;
5628 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5629 bfd_set_section_flags (stdoutput, segment,
c5e9ccd0 5630 applicable & (SEC_ALLOC | SEC_LOAD
3b9a72c5
JL		 5631 | SEC_RELOC
5632 | SEC_HAS_CONTENTS));
c5e9ccd0
JL		 5633
5634
3b9a72c5 5635 }
c5e9ccd0 5636 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$") && !USE_ALIASES)
3b9a72c5
JL		 5637 {
5638 bss_section = segment;
5639 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5640 bfd_set_section_flags (stdoutput, segment,
3b9a72c5
JL		 5641 applicable & SEC_ALLOC);
5642 }
9de7c1fc
JL		 5643 else if (!strcmp (pa_def_subspaces[i].name, "$LIT$") && !USE_ALIASES)
5644 {
5645 applicable = bfd_applicable_section_flags (stdoutput);
5646 bfd_set_section_flags (stdoutput, segment,
5647 applicable & (SEC_ALLOC | SEC_LOAD
5648 | SEC_RELOC
5649 | SEC_READONLY
5650 | SEC_HAS_CONTENTS));
5651 }
5652 else if (!strcmp (pa_def_subspaces[i].name, "$UNWIND$") && !USE_ALIASES)
5653 {
5654 applicable = bfd_applicable_section_flags (stdoutput);
5655 bfd_set_section_flags (stdoutput, segment,
5656 applicable & (SEC_ALLOC | SEC_LOAD
5657 | SEC_RELOC
5658 | SEC_READONLY
5659 | SEC_HAS_CONTENTS));
5660 }
3b9a72c5
JL		 5661
5662 /* Find the space associated with this subspace. */
5663 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
5664 def_space_index].segment);
5665 if (space == NULL)
5666 {
5667 as_fatal ("Internal error: Unable to find containing space for %s.",
5668 pa_def_subspaces[i].name);
5669 }
5670
5671 create_new_subspace (space, name,
5672 pa_def_subspaces[i].loadable,
5673 pa_def_subspaces[i].code_only,
5674 pa_def_subspaces[i].common,
5675 pa_def_subspaces[i].dup_common,
5676 pa_def_subspaces[i].zero,
5677 pa_def_subspaces[i].sort,
5678 pa_def_subspaces[i].access,
5679 pa_def_subspaces[i].space_index,
5680 pa_def_subspaces[i].alignment,
5681 pa_def_subspaces[i].quadrant,
5682 segment);
025b0302
ME		 5683 i++;
5684 }
5685}
5686
8f78d0e9
KR		 5687
5688
5689/* Create a new space NAME, with the appropriate flags as defined
dd2f509f 5690 by the given parameters. */
8f78d0e9
KR		 5691
5692static sd_chain_struct *
5693create_new_space (name, spnum, loadable, defined, private,
5694 sort, seg, user_defined)
025b0302
ME		 5695 char *name;
5696 int spnum;
de3ffc7a
JL		 5697 int loadable;
5698 int defined;
5699 int private;
5700 int sort;
025b0302 5701 asection *seg;
8f78d0e9 5702 int user_defined;
025b0302 5703{
8f78d0e9
KR		 5704 sd_chain_struct *chain_entry;
5705
5706 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
025b0302 5707 if (!chain_entry)
8f78d0e9
KR		 5708 as_fatal ("Out of memory: could not allocate new space chain entry: %s\n",
5709 name);
025b0302
ME		 5710
5711 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5712 strcpy (SPACE_NAME (chain_entry), name);
8f78d0e9
KR		 5713 SPACE_DEFINED (chain_entry) = defined;
5714 SPACE_USER_DEFINED (chain_entry) = user_defined;
8f78d0e9 5715 SPACE_SPNUM (chain_entry) = spnum;
025b0302 5716
025b0302
ME		 5717 chain_entry->sd_seg = seg;
5718 chain_entry->sd_last_subseg = -1;
fbf71886 5719 chain_entry->sd_subspaces = NULL;
025b0302
ME		 5720 chain_entry->sd_next = NULL;
5721
8f78d0e9 5722 /* Find spot for the new space based on its sort key. */
025b0302
ME		 5723 if (!space_dict_last)
5724 space_dict_last = chain_entry;
5725
8f78d0e9 5726 if (space_dict_root == NULL)
025b0302
ME		 5727 space_dict_root = chain_entry;
5728 else
5729 {
8f78d0e9
KR		 5730 sd_chain_struct *chain_pointer;
5731 sd_chain_struct *prev_chain_pointer;
025b0302 5732
8f78d0e9
KR		 5733 chain_pointer = space_dict_root;
5734 prev_chain_pointer = NULL;
025b0302 5735
8f78d0e9 5736 while (chain_pointer)
025b0302 5737 {
dd2f509f
JL		 5738 prev_chain_pointer = chain_pointer;
5739 chain_pointer = chain_pointer->sd_next;
025b0302
ME		 5740 }
5741
8f78d0e9
KR		 5742 /* At this point we've found the correct place to add the new
5743 entry. So add it and update the linked lists as appropriate. */
5744 if (prev_chain_pointer)
025b0302 5745 {
8f78d0e9
KR		 5746 chain_entry->sd_next = chain_pointer;
5747 prev_chain_pointer->sd_next = chain_entry;
025b0302
ME		 5748 }
5749 else
5750 {
5751 space_dict_root = chain_entry;
8f78d0e9 5752 chain_entry->sd_next = chain_pointer;
025b0302
ME		 5753 }
5754
5755 if (chain_entry->sd_next == NULL)
5756 space_dict_last = chain_entry;
5757 }
5758
548ea75b
JL		 5759 /* This is here to catch predefined spaces which do not get
5760 modified by the user's input. Another call is found at
5761 the bottom of pa_parse_space_stmt to handle cases where
5762 the user modifies a predefined space. */
5763#ifdef obj_set_section_attributes
5764 obj_set_section_attributes (seg, defined, private, sort, spnum);
5765#endif
5766
025b0302
ME		 5767 return chain_entry;
5768}
5769
8f78d0e9
KR		 5770/* Create a new subspace NAME, with the appropriate flags as defined
5771 by the given parameters.
5772
5773 Add the new subspace to the subspace dictionary chain in numerical
5774 order as defined by the SORT entries. */
5775
5776static ssd_chain_struct *
5777create_new_subspace (space, name, loadable, code_only, common,
5778 dup_common, is_zero, sort, access, space_index,
5779 alignment, quadrant, seg)
5780 sd_chain_struct *space;
025b0302 5781 char *name;
de3ffc7a
JL		 5782 int loadable, code_only, common, dup_common, is_zero;
5783 int sort;
025b0302
ME		 5784 int access;
5785 int space_index;
5786 int alignment;
5787 int quadrant;
5788 asection *seg;
5789{
8f78d0e9 5790 ssd_chain_struct *chain_entry;
025b0302 5791
8f78d0e9 5792 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
025b0302
ME		 5793 if (!chain_entry)
5794 as_fatal ("Out of memory: could not allocate new subspace chain entry: %s\n", name);
5795
025b0302
ME		 5796 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5797 strcpy (SUBSPACE_NAME (chain_entry), name);
5798
240cbc57
JL		 5799 /* Initialize subspace_defined. When we hit a .subspace directive
5800 we'll set it to 1 which "locks-in" the subspace attributes. */
5801 SUBSPACE_DEFINED (chain_entry) = 0;
5802
3b9a72c5 5803 chain_entry->ssd_subseg = USE_ALIASES ? pa_next_subseg (space) : 0;
025b0302 5804 chain_entry->ssd_seg = seg;
025b0302
ME		 5805 chain_entry->ssd_next = NULL;
5806
8f78d0e9
KR		 5807 /* Find spot for the new subspace based on its sort key. */
5808 if (space->sd_subspaces == NULL)
025b0302
ME		 5809 space->sd_subspaces = chain_entry;
5810 else
5811 {
8f78d0e9
KR		 5812 ssd_chain_struct *chain_pointer;
5813 ssd_chain_struct *prev_chain_pointer;
025b0302 5814
8f78d0e9
KR		 5815 chain_pointer = space->sd_subspaces;
5816 prev_chain_pointer = NULL;
025b0302 5817
8f78d0e9 5818 while (chain_pointer)
025b0302 5819 {
dd2f509f
JL		 5820 prev_chain_pointer = chain_pointer;
5821 chain_pointer = chain_pointer->ssd_next;
025b0302
ME		 5822 }
5823
8f78d0e9
KR		 5824 /* Now we have somewhere to put the new entry. Insert it and update
5825 the links. */
5826 if (prev_chain_pointer)
025b0302 5827 {
8f78d0e9
KR		 5828 chain_entry->ssd_next = chain_pointer;
5829 prev_chain_pointer->ssd_next = chain_entry;
025b0302
ME		 5830 }
5831 else
5832 {
5833 space->sd_subspaces = chain_entry;
8f78d0e9 5834 chain_entry->ssd_next = chain_pointer;
025b0302
ME		 5835 }
5836 }
5837
548ea75b 5838#ifdef obj_set_subsection_attributes
c5e9ccd0 5839 obj_set_subsection_attributes (seg, space->sd_seg, access,
548ea75b
JL		 5840 sort, quadrant);
5841#endif
5842
025b0302 5843 return chain_entry;
025b0302
ME		 5844}
5845
8f78d0e9
KR		 5846/* Update the information for the given subspace based upon the
5847 various arguments. Return the modified subspace chain entry. */
5848
5849static ssd_chain_struct *
3b9a72c5 5850update_subspace (space, name, loadable, code_only, common, dup_common, sort,
18c4f112 5851 zero, access, space_index, alignment, quadrant, section)
3b9a72c5 5852 sd_chain_struct *space;
025b0302 5853 char *name;
de3ffc7a
JL		 5854 int loadable;
5855 int code_only;
5856 int common;
5857 int dup_common;
5858 int zero;
5859 int sort;
025b0302
ME		 5860 int access;
5861 int space_index;
5862 int alignment;
5863 int quadrant;
18c4f112 5864 asection *section;
025b0302 5865{
8f78d0e9 5866 ssd_chain_struct *chain_entry;
025b0302 5867
dd2f509f 5868 chain_entry = is_defined_subspace (name);
025b0302 5869
548ea75b 5870#ifdef obj_set_subsection_attributes
c5e9ccd0 5871 obj_set_subsection_attributes (section, space->sd_seg, access,
548ea75b
JL		 5872 sort, quadrant);
5873#endif
5874
025b0302 5875 return chain_entry;
025b0302
ME		 5876}
5877
8f78d0e9
KR		 5878/* Return the space chain entry for the space with the name NAME or
5879 NULL if no such space exists. */
5880
5881static sd_chain_struct *
025b0302
ME		 5882is_defined_space (name)
5883 char *name;
5884{
8f78d0e9 5885 sd_chain_struct *chain_pointer;
025b0302 5886
8f78d0e9
KR		 5887 for (chain_pointer = space_dict_root;
5888 chain_pointer;
5889 chain_pointer = chain_pointer->sd_next)
025b0302 5890 {
8f78d0e9
KR		 5891 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
5892 return chain_pointer;
025b0302
ME		 5893 }
5894
8f78d0e9 5895 /* No mapping from segment to space was found. Return NULL. */
025b0302
ME		 5896 return NULL;
5897}
5898
75c28b49 5899/* Find and return the space associated with the given seg. If no mapping
8f78d0e9
KR		 5900 from the given seg to a space is found, then return NULL.
5901
5902 Unlike subspaces, the number of spaces is not expected to grow much,
5903 so a linear exhaustive search is OK here. */
5904
5905static sd_chain_struct *
025b0302
ME		 5906pa_segment_to_space (seg)
5907 asection *seg;
5908{
8f78d0e9 5909 sd_chain_struct *space_chain;
025b0302 5910
8f78d0e9
KR		 5911 /* Walk through each space looking for the correct mapping. */
5912 for (space_chain = space_dict_root;
5913 space_chain;
5914 space_chain = space_chain->sd_next)
025b0302 5915 {
8f78d0e9
KR		 5916 if (space_chain->sd_seg == seg)
5917 return space_chain;
025b0302
ME		 5918 }
5919
8f78d0e9 5920 /* Mapping was not found. Return NULL. */
025b0302
ME		 5921 return NULL;
5922}
5923
8f78d0e9
KR		 5924/* Return the space chain entry for the subspace with the name NAME or
5925 NULL if no such subspace exists.
5926
5927 Uses a linear search through all the spaces and subspaces, this may
5928 not be appropriate if we ever being placing each function in its
5929 own subspace. */
5930
5931static ssd_chain_struct *
47f45d66 5932is_defined_subspace (name)
025b0302 5933 char *name;
025b0302 5934{
c5e9ccd0 5935 sd_chain_struct *space_chain;
8f78d0e9 5936 ssd_chain_struct *subspace_chain;
025b0302 5937
8f78d0e9
KR		 5938 /* Walk through each space. */
5939 for (space_chain = space_dict_root;
5940 space_chain;
5941 space_chain = space_chain->sd_next)
025b0302 5942 {
8f78d0e9
KR		 5943 /* Walk through each subspace looking for a name which matches. */
5944 for (subspace_chain = space_chain->sd_subspaces;
5945 subspace_chain;
5946 subspace_chain = subspace_chain->ssd_next)
5947 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
5948 return subspace_chain;
025b0302 5949 }
8f78d0e9
KR		 5950
5951 /* Subspace wasn't found. Return NULL. */
025b0302
ME		 5952 return NULL;
5953}
5954
8f78d0e9
KR		 5955/* Find and return the subspace associated with the given seg. If no
5956 mapping from the given seg to a subspace is found, then return NULL.
5957
75c28b49 5958 If we ever put each procedure/function within its own subspace
8f78d0e9
KR		 5959 (to make life easier on the compiler and linker), then this will have
5960 to become more efficient. */
5961
5962static ssd_chain_struct *
025b0302
ME		 5963pa_subsegment_to_subspace (seg, subseg)
5964 asection *seg;
5965 subsegT subseg;
5966{
8f78d0e9
KR		 5967 sd_chain_struct *space_chain;
5968 ssd_chain_struct *subspace_chain;
025b0302 5969
8f78d0e9
KR		 5970 /* Walk through each space. */
5971 for (space_chain = space_dict_root;
5972 space_chain;
5973 space_chain = space_chain->sd_next)
025b0302 5974 {
8f78d0e9 5975 if (space_chain->sd_seg == seg)
025b0302 5976 {
8f78d0e9
KR		 5977 /* Walk through each subspace within each space looking for
5978 the correct mapping. */
5979 for (subspace_chain = space_chain->sd_subspaces;
5980 subspace_chain;
5981 subspace_chain = subspace_chain->ssd_next)
5982 if (subspace_chain->ssd_subseg == (int) subseg)
5983 return subspace_chain;
025b0302
ME		 5984 }
5985 }
5986
8f78d0e9 5987 /* No mapping from subsegment to subspace found. Return NULL. */
025b0302
ME		 5988 return NULL;
5989}
5990
75c28b49 5991/* Given a number, try and find a space with the name number.
8f78d0e9
KR		 5992
5993 Return a pointer to a space dictionary chain entry for the space
5994 that was found or NULL on failure. */
5995
5996static sd_chain_struct *
025b0302
ME		 5997pa_find_space_by_number (number)
5998 int number;
5999{
8f78d0e9 6000 sd_chain_struct *space_chain;
025b0302 6001
8f78d0e9
KR		 6002 for (space_chain = space_dict_root;
6003 space_chain;
6004 space_chain = space_chain->sd_next)
025b0302 6005 {
8f78d0e9
KR		 6006 if (SPACE_SPNUM (space_chain) == number)
6007 return space_chain;
025b0302
ME		 6008 }
6009
8f78d0e9 6010 /* No appropriate space found. Return NULL. */
025b0302
ME		 6011 return NULL;
6012}
6013
8f78d0e9
KR		 6014/* Return the starting address for the given subspace. If the starting
6015 address is unknown then return zero. */
6016
6017static unsigned int
025b0302 6018pa_subspace_start (space, quadrant)
8f78d0e9 6019 sd_chain_struct *space;
025b0302
ME		 6020 int quadrant;
6021{
8f78d0e9
KR		 6022 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6023 is not correct for the PA OSF1 port. */
4047ff1d 6024 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
8f78d0e9 6025 return 0x40000000;
025b0302 6026 else if (space->sd_seg == data_section && quadrant == 1)
8f78d0e9 6027 return 0x40000000;
025b0302
ME		 6028 else
6029 return 0;
6030}
6031
8f78d0e9
KR		 6032/* FIXME. Needs documentation. */
6033static int
025b0302 6034pa_next_subseg (space)
8f78d0e9 6035 sd_chain_struct *space;
025b0302
ME		 6036{
6037
6038 space->sd_last_subseg++;
6039 return space->sd_last_subseg;
6040}
6041
75c28b49 6042/* Helper function for pa_stringer. Used to find the end of
8f78d0e9
KR		 6043 a string. */
6044
025b0302
ME		 6045static unsigned int
6046pa_stringer_aux (s)
6047 char *s;
6048{
6049 unsigned int c = *s & CHAR_MASK;
60937ce7
JL		 6050
6051 /* We must have a valid space and subspace. */
6052 pa_check_current_space_and_subspace ();
6053
025b0302
ME		 6054 switch (c)
6055 {
6056 case '\"':
6057 c = NOT_A_CHAR;
6058 break;
6059 default:
6060 break;
6061 }
6062 return c;
6063}
6064
8f78d0e9
KR		 6065/* Handle a .STRING type pseudo-op. */
6066
6067static void
6068pa_stringer (append_zero)
6069 int append_zero;
025b0302 6070{
8f78d0e9 6071 char *s, num_buf[4];
025b0302 6072 unsigned int c;
025b0302
ME		 6073 int i;
6074
8f78d0e9 6075 /* Preprocess the string to handle PA-specific escape sequences.
75c28b49 6076 For example, \xDD where DD is a hexidecimal number should be
8f78d0e9 6077 changed to \OOO where OOO is an octal number. */
025b0302 6078
8f78d0e9
KR		 6079 /* Skip the opening quote. */
6080 s = input_line_pointer + 1;
025b0302
ME		 6081
6082 while (is_a_char (c = pa_stringer_aux (s++)))
6083 {
6084 if (c == '\\')
6085 {
6086 c = *s;
6087 switch (c)
6088 {
8f78d0e9 6089 /* Handle \x<num>. */
025b0302
ME		 6090 case 'x':
6091 {
6092 unsigned int number;
6093 int num_digit;
6094 char dg;
6095 char *s_start = s;
6096
8f78d0e9
KR		 6097 /* Get pas the 'x'. */
6098 s++;
025b0302
ME		 6099 for (num_digit = 0, number = 0, dg = *s;
6100 num_digit < 2
6101 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
6102 || (dg >= 'A' && dg <= 'F'));
6103 num_digit++)
6104 {
6105 if (isdigit (dg))
6106 number = number * 16 + dg - '0';
6107 else if (dg >= 'a' && dg <= 'f')
6108 number = number * 16 + dg - 'a' + 10;
6109 else
6110 number = number * 16 + dg - 'A' + 10;
6111
6112 s++;
6113 dg = *s;
6114 }
6115 if (num_digit > 0)
6116 {
6117 switch (num_digit)
6118 {
6119 case 1:
6120 sprintf (num_buf, "%02o", number);
6121 break;
6122 case 2:
6123 sprintf (num_buf, "%03o", number);
6124 break;
6125 }
6126 for (i = 0; i <= num_digit; i++)
6127 s_start[i] = num_buf[i];
6128 }
5cf4cd1b 6129 break;
025b0302 6130 }
8f78d0e9 6131 /* This might be a "\"", skip over the escaped char. */
5cf4cd1b
KR		 6132 default:
6133 s++;
025b0302
ME		 6134 break;
6135 }
6136 }
6137 }
6138 stringer (append_zero);
6139 pa_undefine_label ();
6140}
6141
8f78d0e9
KR		 6142/* Handle a .VERSION pseudo-op. */
6143
6144static void
6145pa_version (unused)
6146 int unused;
025b0302 6147{
8f78d0e9 6148 obj_version (0);
025b0302
ME		 6149 pa_undefine_label ();
6150}
6151
eb91665b
JL		 6152/* Handle a .COPYRIGHT pseudo-op. */
6153
6154static void
6155pa_copyright (unused)
6156 int unused;
6157{
6158 obj_copyright (0);
6159 pa_undefine_label ();
6160}
6161
8f78d0e9
KR		 6162/* Just like a normal cons, but when finished we have to undefine
6163 the latest space label. */
6164
6165static void
025b0302 6166pa_cons (nbytes)
8f78d0e9 6167 int nbytes;
025b0302
ME		 6168{
6169 cons (nbytes);
6170 pa_undefine_label ();
6171}
6172
8f78d0e9
KR		 6173/* Switch to the data space. As usual delete our label. */
6174
6175static void
6176pa_data (unused)
6177 int unused;
025b0302 6178{
dc1b1221
JL		 6179 current_space = is_defined_space ("$PRIVATE$");
6180 current_subspace
6181 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
80aab579 6182 s_data (0);
025b0302
ME		 6183 pa_undefine_label ();
6184}
6185
8f78d0e9 6186/* Like float_cons, but we need to undefine our label. */
c5e9ccd0 6187
8f78d0e9 6188static void
025b0302 6189pa_float_cons (float_type)
8f78d0e9 6190 int float_type;
025b0302
ME		 6191{
6192 float_cons (float_type);
6193 pa_undefine_label ();
6194}
6195
8f78d0e9
KR		 6196/* Like s_fill, but delete our label when finished. */
6197
6198static void
6199pa_fill (unused)
6200 int unused;
025b0302 6201{
60937ce7
JL		 6202 /* We must have a valid space and subspace. */
6203 pa_check_current_space_and_subspace ();
6204
80aab579 6205 s_fill (0);
025b0302
ME		 6206 pa_undefine_label ();
6207}
6208
8f78d0e9
KR		 6209/* Like lcomm, but delete our label when finished. */
6210
6211static void
025b0302 6212pa_lcomm (needs_align)
025b0302
ME		 6213 int needs_align;
6214{
60937ce7
JL		 6215 /* We must have a valid space and subspace. */
6216 pa_check_current_space_and_subspace ();
6217
025b0302
ME		 6218 s_lcomm (needs_align);
6219 pa_undefine_label ();
6220}
6221
8f78d0e9
KR		 6222/* Like lsym, but delete our label when finished. */
6223
6224static void
6225pa_lsym (unused)
6226 int unused;
025b0302 6227{
60937ce7
JL		 6228 /* We must have a valid space and subspace. */
6229 pa_check_current_space_and_subspace ();
6230
80aab579 6231 s_lsym (0);
025b0302
ME		 6232 pa_undefine_label ();
6233}
6234
75c28b49 6235/* Switch to the text space. Like s_text, but delete our
8f78d0e9
KR		 6236 label when finished. */
6237static void
6238pa_text (unused)
6239 int unused;
025b0302 6240{
dc1b1221
JL		 6241 current_space = is_defined_space ("$TEXT$");
6242 current_subspace
6243 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
6244
80aab579 6245 s_text (0);
025b0302
ME		 6246 pa_undefine_label ();
6247}
5cf4cd1b 6248
75c28b49 6249/* On the PA relocations which involve function symbols must not be
aa8b30ed
JL		 6250 adjusted. This so that the linker can know when/how to create argument
6251 relocation stubs for indirect calls and calls to static functions.
6252
8fd04cba
JL		 6253 "T" field selectors create DLT relative fixups for accessing
6254 globals and statics in PIC code; each DLT relative fixup creates
6255 an entry in the DLT table. The entries contain the address of
6256 the final target (eg accessing "foo" would create a DLT entry
6257 with the address of "foo").
6258
6259 Unfortunately, the HP linker doesn't take into account any addend
6260 when generating the DLT; so accessing $LIT$+8 puts the address of
6261 $LIT$ into the DLT rather than the address of $LIT$+8.
6262
6263 The end result is we can't perform relocation symbol reductions for
6264 any fixup which creates entries in the DLT (eg they use "T" field
6265 selectors).
6266
e67b3aa3 6267 Reject reductions involving symbols with external scope; such
b4682e51 6268 reductions make life a living hell for object file editors.
e67b3aa3 6269
b4682e51
JL		 6270 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6271 the code space. The SOM BFD backend doesn't know how to pull the
6272 right bits out of an instruction. */
aa8b30ed
JL		 6273
6274int
c5e9ccd0 6275hppa_fix_adjustable (fixp)
aa8b30ed
JL		 6276 fixS *fixp;
6277{
6278 struct hppa_fix_struct *hppa_fix;
6279
fb338f1d 6280 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
aa8b30ed 6281
60937ce7
JL		 6282#ifdef OBJ_SOM
6283 /* Reject reductions of symbols in 32bit relocs. */
aa8b30ed
JL		 6284 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
6285 return 0;
249c7415
JL		 6286
6287 /* Reject reductions of symbols in sym1-sym2 expressions when
6288 the fixup will occur in a CODE subspace.
6289
6290 XXX FIXME: Long term we probably want to reject all of these;
6291 for example reducing in the debug section would lose if we ever
6292 supported using the optimizing hp linker. */
6293 if (fixp->fx_addsy
6294 && fixp->fx_subsy
6295 && (hppa_fix->segment->flags & SEC_CODE))
6296 {
6297 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
6298 fixp->fx_subsy->sy_used_in_reloc = 1;
6299 return 0;
6300 }
83b59013
JL		 6301
6302 /* We can't adjust DP relative relocs that use LR% and RR% field
6303 selectors. That confuses the optimization pass in HP linker. */
6304 if (fixp->fx_r_type == R_DP_RELATIVE
6305 && (hppa_fix->fx_r_field == e_lrsel
24b216e1
JL		 6306 || hppa_fix->fx_r_field == e_rrsel
6307 || hppa_fix->fx_r_field == e_nlrsel))
83b59013 6308 return 0;
60937ce7 6309#endif
aa8b30ed 6310
b4682e51
JL		 6311 /* Reject reductions of symbols in DLT relative relocs,
6312 relocations with plabels. */
8fd04cba
JL		 6313 if (hppa_fix->fx_r_field == e_tsel
6314 || hppa_fix->fx_r_field == e_ltsel
b4682e51
JL		 6315 || hppa_fix->fx_r_field == e_rtsel
6316 || hppa_fix->fx_r_field == e_psel
6317 || hppa_fix->fx_r_field == e_rpsel
6318 || hppa_fix->fx_r_field == e_lpsel)
8fd04cba
JL		 6319 return 0;
6320
e67b3aa3
JL		 6321 if (fixp->fx_addsy && fixp->fx_addsy->bsym->flags & BSF_GLOBAL)
6322 return 0;
6323
8fd04cba 6324 /* Reject reductions of function symbols. */
c5e9ccd0 6325 if (fixp->fx_addsy == 0
aa8b30ed
JL		 6326 || (fixp->fx_addsy->bsym->flags & BSF_FUNCTION) == 0)
6327 return 1;
6328
6329 return 0;
6330}
c5e9ccd0 6331
335d35c8
JL		 6332/* Return nonzero if the fixup in FIXP will require a relocation,
6333 even it if appears that the fixup could be completely handled
6334 within GAS. */
6335
6336int
6337hppa_force_relocation (fixp)
6338 fixS *fixp;
6339{
fb338f1d 6340 struct hppa_fix_struct *hppa_fixp;
4ff6f92a 6341 int distance;
335d35c8 6342
fb338f1d 6343 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
335d35c8 6344#ifdef OBJ_SOM
249c7415 6345 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT
5ae218df
JL		 6346 || fixp->fx_r_type == R_HPPA_BEGIN_BRTAB
6347 || fixp->fx_r_type == R_HPPA_END_BRTAB
249c7415
JL		 6348 || (fixp->fx_addsy != NULL && fixp->fx_subsy != NULL
6349 && (hppa_fixp->segment->flags & SEC_CODE) != 0))
335d35c8
JL		 6350 return 1;
6351#endif
6352
4829cd65 6353#define arg_reloc_stub_needed(CALLER, CALLEE) \
335d35c8
JL		 6354 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6355
6356 /* It is necessary to force PC-relative calls/jumps to have a relocation
6357 entry if they're going to need either a argument relocation or long
6358 call stub. FIXME. Can't we need the same for absolute calls? */
753dcbbd 6359 if (fixp->fx_pcrel && fixp->fx_addsy
4829cd65
JL		 6360 && (arg_reloc_stub_needed (((obj_symbol_type *)
6361 fixp->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
6362
6363 hppa_fixp->fx_arg_reloc)))
6364 return 1;
6365 distance = (fixp->fx_offset + S_GET_VALUE (fixp->fx_addsy)
6366 - md_pcrel_from (fixp));
6367 /* Now check and see if we're going to need a long-branch stub. */
6368 if (fixp->fx_r_type == R_HPPA_PCREL_CALL
6369 && (distance > 262143 || distance < -262144))
6370 return 1;
335d35c8 6371
4829cd65 6372#undef arg_reloc_stub_needed
335d35c8
JL		 6373
6374 /* No need (yet) to force another relocations to be emitted. */
6375 return 0;
6376}
6377
8f78d0e9
KR		 6378/* Now for some ELF specific code. FIXME. */
6379#ifdef OBJ_ELF
4ff6f92a
JL		 6380/* Mark the end of a function so that it's possible to compute
6381 the size of the function in hppa_elf_final_processing. */
6382
6383static void
6384hppa_elf_mark_end_of_function ()
6385{
6386 /* ELF does not have EXIT relocations. All we do is create a
6387 temporary symbol marking the end of the function. */
6388 char *name = (char *)
6389 xmalloc (strlen ("L$\001end_") +
6390 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
6391
6392 if (name)
6393 {
6394 symbolS *symbolP;
6395
6396 strcpy (name, "L$\001end_");
6397 strcat (name, S_GET_NAME (last_call_info->start_symbol));
6398
6399 /* If we have a .exit followed by a .procend, then the
6400 symbol will have already been defined. */
6401 symbolP = symbol_find (name);
6402 if (symbolP)
6403 {
6404 /* The symbol has already been defined! This can
6405 happen if we have a .exit followed by a .procend.
6406
6407 This is *not* an error. All we want to do is free
6408 the memory we just allocated for the name and continue. */
6409 xfree (name);
6410 }
6411 else
6412 {
6413 /* symbol value should be the offset of the
6414 last instruction of the function */
83b59013 6415 symbolP = symbol_new (name, now_seg, (valueT) (frag_now_fix () - 4),
4ff6f92a
JL		 6416 frag_now);
6417
6418 assert (symbolP);
6419 symbolP->bsym->flags = BSF_LOCAL;
6420 symbol_table_insert (symbolP);
6421 }
6422
6423 if (symbolP)
6424 last_call_info->end_symbol = symbolP;
6425 else
6426 as_bad ("Symbol '%s' could not be created.", name);
6427
6428 }
6429 else
6430 as_bad ("No memory for symbol name.");
6431
6432}
6433
8f78d0e9 6434/* For ELF, this function serves one purpose: to setup the st_size
4ff6f92a
JL		 6435 field of STT_FUNC symbols. To do this, we need to scan the
6436 call_info structure list, determining st_size in by taking the
6437 difference in the address of the beginning/end marker symbols. */
8f78d0e9
KR		 6438
6439void
6440elf_hppa_final_processing ()
6441{
6442 struct call_info *call_info_pointer;
6443
6444 for (call_info_pointer = call_info_root;
6445 call_info_pointer;
6446 call_info_pointer = call_info_pointer->ci_next)
6447 {
6448 elf_symbol_type *esym
c5e9ccd0 6449 = (elf_symbol_type *) call_info_pointer->start_symbol->bsym;
4ff6f92a
JL		 6450 esym->internal_elf_sym.st_size =
6451 S_GET_VALUE (call_info_pointer->end_symbol)
6452 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
5cf4cd1b
KR		 6453 }
6454}
8f78d0e9 6455#endif
GDB Binutils - Deliverables
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