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* hppa-dis.c (MASK_10, read_write_names, add_compl_names,
[deliverable/binutils-gdb.git] / gas / config / tc-hppa.c
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252b5132 1/* tc-hppa.c -- Assemble for the PA
49309057
ILT		 2 Copyright (C) 1989, 93, 94, 95, 96, 97, 98, 1999
3 Free Software Foundation, Inc.
252b5132
RH		 4
5 This file is part of GAS, the GNU Assembler.
6
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
11
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20 02111-1307, USA. */
21
22
23/* HP PA-RISC support was contributed by the Center for Software Science
24 at the University of Utah. */
25
26#include <stdio.h>
27#include <ctype.h>
28
29#include "as.h"
30#include "subsegs.h"
31
32#include "bfd/libhppa.h"
33#include "bfd/libbfd.h"
34
35/* Be careful, this file includes data *declarations*. */
36#include "opcode/hppa.h"
37
49863f82
JL		 38#if defined (OBJ_ELF) && defined (OBJ_SOM)
39error only one of OBJ_ELF and OBJ_SOM can be defined
40#endif
41
252b5132
RH		 42/* A "convient" place to put object file dependencies which do
43 not need to be seen outside of tc-hppa.c. */
44#ifdef OBJ_ELF
252b5132 45/* Object file formats specify relocation types. */
b388df87 46typedef elf_hppa_reloc_type reloc_type;
252b5132
RH		 47
48/* Object file formats specify BFD symbol types. */
49typedef elf_symbol_type obj_symbol_type;
50
b388df87 51#ifdef BFD64
252b5132 52/* How to generate a relocation. */
b388df87
JL		 53#define hppa_gen_reloc_type _bfd_elf64_hppa_gen_reloc_type
54#else
55#define hppa_gen_reloc_type _bfd_elf32_hppa_gen_reloc_type
56#endif
252b5132
RH		 57
58/* ELF objects can have versions, but apparently do not have anywhere
59 to store a copyright string. */
60#define obj_version obj_elf_version
61#define obj_copyright obj_elf_version
46031ca9
JL		 62
63#define UNWIND_SECTION_NAME ".PARISC.unwind"
252b5132
RH		 64#endif
65
66#ifdef OBJ_SOM
67/* Names of various debugging spaces/subspaces. */
68#define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
69#define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
70#define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
71#define UNWIND_SECTION_NAME "$UNWIND$"
72
73/* Object file formats specify relocation types. */
74typedef int reloc_type;
75
76/* SOM objects can have both a version string and a copyright string. */
77#define obj_version obj_som_version
78#define obj_copyright obj_som_copyright
79
252b5132
RH		 80/* How to generate a relocation. */
81#define hppa_gen_reloc_type hppa_som_gen_reloc_type
82
83/* Object file formats specify BFD symbol types. */
84typedef som_symbol_type obj_symbol_type;
85
86/* This apparently isn't in older versions of hpux reloc.h. */
87#ifndef R_DLT_REL
88#define R_DLT_REL 0x78
89#endif
90#endif
91
92#ifndef R_N0SEL
93#define R_N0SEL 0xd8
94#endif
95
96#ifndef R_N1SEL
97#define R_N1SEL 0xd9
98#endif
99
100/* Various structures and types used internally in tc-hppa.c. */
101
102/* Unwind table and descriptor. FIXME: Sync this with GDB version. */
103
104struct unwind_desc
105 {
106 unsigned int cannot_unwind:1;
107 unsigned int millicode:1;
108 unsigned int millicode_save_rest:1;
109 unsigned int region_desc:2;
110 unsigned int save_sr:2;
111 unsigned int entry_fr:4;
112 unsigned int entry_gr:5;
113 unsigned int args_stored:1;
114 unsigned int call_fr:5;
115 unsigned int call_gr:5;
116 unsigned int save_sp:1;
117 unsigned int save_rp:1;
118 unsigned int save_rp_in_frame:1;
119 unsigned int extn_ptr_defined:1;
120 unsigned int cleanup_defined:1;
121
122 unsigned int hpe_interrupt_marker:1;
123 unsigned int hpux_interrupt_marker:1;
124 unsigned int reserved:3;
125 unsigned int frame_size:27;
126 };
127
128struct unwind_table
129 {
130 /* Starting and ending offsets of the region described by
131 descriptor. */
132 unsigned int start_offset;
133 unsigned int end_offset;
134 struct unwind_desc descriptor;
135 };
136
137/* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
138 control the entry and exit code they generate. It is also used in
139 creation of the correct stack unwind descriptors.
140
141 NOTE: GAS does not support .enter and .leave for the generation of
142 prologues and epilogues. FIXME.
143
144 The fields in structure roughly correspond to the arguments available on the
145 .callinfo pseudo-op. */
146
147struct call_info
148 {
149 /* The unwind descriptor being built. */
150 struct unwind_table ci_unwind;
151
152 /* Name of this function. */
153 symbolS *start_symbol;
154
155 /* (temporary) symbol used to mark the end of this function. */
156 symbolS *end_symbol;
157
158 /* Next entry in the chain. */
159 struct call_info *ci_next;
160 };
161
162/* Operand formats for FP instructions. Note not all FP instructions
163 allow all four formats to be used (for example fmpysub only allows
164 SGL and DBL). */
165typedef enum
166 {
167 SGL, DBL, ILLEGAL_FMT, QUAD, W, UW, DW, UDW, QW, UQW
168 }
169fp_operand_format;
170
171/* This fully describes the symbol types which may be attached to
172 an EXPORT or IMPORT directive. Only SOM uses this formation
173 (ELF has no need for it). */
174typedef enum
175 {
176 SYMBOL_TYPE_UNKNOWN,
177 SYMBOL_TYPE_ABSOLUTE,
178 SYMBOL_TYPE_CODE,
179 SYMBOL_TYPE_DATA,
180 SYMBOL_TYPE_ENTRY,
181 SYMBOL_TYPE_MILLICODE,
182 SYMBOL_TYPE_PLABEL,
183 SYMBOL_TYPE_PRI_PROG,
184 SYMBOL_TYPE_SEC_PROG,
185 }
186pa_symbol_type;
187
188/* This structure contains information needed to assemble
189 individual instructions. */
190struct pa_it
191 {
192 /* Holds the opcode after parsing by pa_ip. */
193 unsigned long opcode;
194
195 /* Holds an expression associated with the current instruction. */
196 expressionS exp;
197
198 /* Does this instruction use PC-relative addressing. */
199 int pcrel;
200
201 /* Floating point formats for operand1 and operand2. */
202 fp_operand_format fpof1;
203 fp_operand_format fpof2;
204
205
206 /* Holds the field selector for this instruction
207 (for example L%, LR%, etc). */
208 long field_selector;
209
210 /* Holds any argument relocation bits associated with this
211 instruction. (instruction should be some sort of call). */
212 long arg_reloc;
213
214 /* The format specification for this instruction. */
215 int format;
216
217 /* The relocation (if any) associated with this instruction. */
218 reloc_type reloc;
219 };
220
221/* PA-89 floating point registers are arranged like this:
222
223
224 +--------------+--------------+
225 | 0 or 16L | 16 or 16R |
226 +--------------+--------------+
227 | 1 or 17L | 17 or 17R |
228 +--------------+--------------+
229 | | |
230
231 . . .
232 . . .
233 . . .
234
235 | | |
236 +--------------+--------------+
237 | 14 or 30L | 30 or 30R |
238 +--------------+--------------+
239 | 15 or 31L | 31 or 31R |
240 +--------------+--------------+
241
242
243 The following is a version of pa_parse_number that
244 handles the L/R notation and returns the correct
245 value to put into the instruction register field.
246 The correct value to put into the instruction is
247 encoded in the structure 'pa_11_fp_reg_struct'. */
248
249struct pa_11_fp_reg_struct
250 {
251 /* The register number. */
252 char number_part;
253
254 /* L/R selector. */
255 char l_r_select;
256 };
257
258/* Additional information needed to build argument relocation stubs. */
259struct call_desc
260 {
261 /* The argument relocation specification. */
262 unsigned int arg_reloc;
263
264 /* Number of arguments. */
265 unsigned int arg_count;
266 };
267
49863f82 268#ifdef OBJ_SOM
252b5132
RH		 269/* This structure defines an entry in the subspace dictionary
270 chain. */
271
272struct subspace_dictionary_chain
273 {
274 /* Nonzero if this space has been defined by the user code. */
275 unsigned int ssd_defined;
276
277 /* Name of this subspace. */
278 char *ssd_name;
279
280 /* GAS segment and subsegment associated with this subspace. */
281 asection *ssd_seg;
282 int ssd_subseg;
283
284 /* Next space in the subspace dictionary chain. */
285 struct subspace_dictionary_chain *ssd_next;
286 };
287
288typedef struct subspace_dictionary_chain ssd_chain_struct;
289
290/* This structure defines an entry in the subspace dictionary
291 chain. */
292
293struct space_dictionary_chain
294 {
295 /* Nonzero if this space has been defined by the user code or
296 as a default space. */
297 unsigned int sd_defined;
298
299 /* Nonzero if this spaces has been defined by the user code. */
300 unsigned int sd_user_defined;
301
302 /* The space number (or index). */
303 unsigned int sd_spnum;
304
305 /* The name of this subspace. */
306 char *sd_name;
307
308 /* GAS segment to which this subspace corresponds. */
309 asection *sd_seg;
310
311 /* Current subsegment number being used. */
312 int sd_last_subseg;
313
314 /* The chain of subspaces contained within this space. */
315 ssd_chain_struct *sd_subspaces;
316
317 /* The next entry in the space dictionary chain. */
318 struct space_dictionary_chain *sd_next;
319 };
320
321typedef struct space_dictionary_chain sd_chain_struct;
322
252b5132
RH		 323/* This structure defines attributes of the default subspace
324 dictionary entries. */
325
326struct default_subspace_dict
327 {
328 /* Name of the subspace. */
329 char *name;
330
331 /* FIXME. Is this still needed? */
332 char defined;
333
334 /* Nonzero if this subspace is loadable. */
335 char loadable;
336
337 /* Nonzero if this subspace contains only code. */
338 char code_only;
339
340 /* Nonzero if this is a common subspace. */
341 char common;
342
343 /* Nonzero if this is a common subspace which allows symbols
344 to be multiply defined. */
345 char dup_common;
346
347 /* Nonzero if this subspace should be zero filled. */
348 char zero;
349
350 /* Sort key for this subspace. */
351 unsigned char sort;
352
353 /* Access control bits for this subspace. Can represent RWX access
354 as well as privilege level changes for gateways. */
355 int access;
356
357 /* Index of containing space. */
358 int space_index;
359
360 /* Alignment (in bytes) of this subspace. */
361 int alignment;
362
363 /* Quadrant within space where this subspace should be loaded. */
364 int quadrant;
365
366 /* An index into the default spaces array. */
367 int def_space_index;
368
252b5132
RH		 369 /* Subsegment associated with this subspace. */
370 subsegT subsegment;
371 };
372
373/* This structure defines attributes of the default space
374 dictionary entries. */
375
376struct default_space_dict
377 {
378 /* Name of the space. */
379 char *name;
380
381 /* Space number. It is possible to identify spaces within
382 assembly code numerically! */
383 int spnum;
384
385 /* Nonzero if this space is loadable. */
386 char loadable;
387
388 /* Nonzero if this space is "defined". FIXME is still needed */
389 char defined;
390
391 /* Nonzero if this space can not be shared. */
392 char private;
393
394 /* Sort key for this space. */
395 unsigned char sort;
396
397 /* Segment associated with this space. */
398 asection *segment;
252b5132 399 };
49863f82
JL		 400#endif
401
402/* Structure for previous label tracking. Needed so that alignments,
403 callinfo declarations, etc can be easily attached to a particular
404 label. */
405typedef struct label_symbol_struct
406 {
407 struct symbol *lss_label;
408#ifdef OBJ_SOM
409 sd_chain_struct *lss_space;
410#endif
411#ifdef OBJ_ELF
412 segT lss_segment;
413#endif
414 struct label_symbol_struct *lss_next;
415 }
416label_symbol_struct;
252b5132
RH		 417
418/* Extra information needed to perform fixups (relocations) on the PA. */
419struct hppa_fix_struct
420 {
421 /* The field selector. */
422 enum hppa_reloc_field_selector_type_alt fx_r_field;
423
424 /* Type of fixup. */
425 int fx_r_type;
426
427 /* Format of fixup. */
428 int fx_r_format;
429
430 /* Argument relocation bits. */
431 long fx_arg_reloc;
432
433 /* The segment this fixup appears in. */
434 segT segment;
435 };
436
437/* Structure to hold information about predefined registers. */
438
439struct pd_reg
440 {
441 char *name;
442 int value;
443 };
444
445/* This structure defines the mapping from a FP condition string
446 to a condition number which can be recorded in an instruction. */
447struct fp_cond_map
448 {
449 char *string;
450 int cond;
451 };
452
453/* This structure defines a mapping from a field selector
454 string to a field selector type. */
455struct selector_entry
456 {
457 char *prefix;
458 int field_selector;
459 };
460
461/* Prototypes for functions local to tc-hppa.c. */
462
49863f82 463#ifdef OBJ_SOM
252b5132 464static void pa_check_current_space_and_subspace PARAMS ((void));
49863f82
JL		 465#endif
466
252b5132
RH		 467static fp_operand_format pa_parse_fp_format PARAMS ((char **s));
468static void pa_cons PARAMS ((int));
469static void pa_data PARAMS ((int));
470static void pa_float_cons PARAMS ((int));
471static void pa_fill PARAMS ((int));
472static void pa_lcomm PARAMS ((int));
473static void pa_lsym PARAMS ((int));
474static void pa_stringer PARAMS ((int));
475static void pa_text PARAMS ((int));
476static void pa_version PARAMS ((int));
477static int pa_parse_fp_cmp_cond PARAMS ((char **));
478static int get_expression PARAMS ((char *));
479static int pa_get_absolute_expression PARAMS ((struct pa_it *, char **));
480static int evaluate_absolute PARAMS ((struct pa_it *));
481static unsigned int pa_build_arg_reloc PARAMS ((char *));
482static unsigned int pa_align_arg_reloc PARAMS ((unsigned int, unsigned int));
483static int pa_parse_nullif PARAMS ((char **));
484static int pa_parse_nonneg_cmpsub_cmpltr PARAMS ((char **, int));
485static int pa_parse_neg_cmpsub_cmpltr PARAMS ((char **, int));
486static int pa_parse_neg_add_cmpltr PARAMS ((char **, int));
487static int pa_parse_nonneg_add_cmpltr PARAMS ((char **, int));
252b5132
RH		 488static void pa_block PARAMS ((int));
489static void pa_brtab PARAMS ((int));
490static void pa_try PARAMS ((int));
491static void pa_call PARAMS ((int));
492static void pa_call_args PARAMS ((struct call_desc *));
493static void pa_callinfo PARAMS ((int));
494static void pa_code PARAMS ((int));
495static void pa_comm PARAMS ((int));
252b5132
RH		 496static void pa_copyright PARAMS ((int));
497static void pa_end PARAMS ((int));
498static void pa_enter PARAMS ((int));
499static void pa_entry PARAMS ((int));
500static void pa_equ PARAMS ((int));
501static void pa_exit PARAMS ((int));
502static void pa_export PARAMS ((int));
503static void pa_type_args PARAMS ((symbolS *, int));
504static void pa_import PARAMS ((int));
505static void pa_label PARAMS ((int));
506static void pa_leave PARAMS ((int));
507static void pa_level PARAMS ((int));
508static void pa_origin PARAMS ((int));
509static void pa_proc PARAMS ((int));
510static void pa_procend PARAMS ((int));
252b5132
RH		 511static void pa_param PARAMS ((int));
512static void pa_undefine_label PARAMS ((void));
513static int need_pa11_opcode PARAMS ((struct pa_it *,
514 struct pa_11_fp_reg_struct *));
515static int pa_parse_number PARAMS ((char **, struct pa_11_fp_reg_struct *));
516static label_symbol_struct *pa_get_label PARAMS ((void));
49863f82
JL		 517#ifdef OBJ_SOM
518static void pa_compiler PARAMS ((int));
519static void pa_align PARAMS ((int));
520static void pa_space PARAMS ((int));
521static void pa_spnum PARAMS ((int));
522static void pa_subspace PARAMS ((int));
252b5132
RH		 523static sd_chain_struct *create_new_space PARAMS ((char *, int, int,
524 int, int, int,
525 asection *, int));
526static ssd_chain_struct *create_new_subspace PARAMS ((sd_chain_struct *,
527 char *, int, int,
528 int, int, int,
529 int, int, int, int,
530 int, asection *));
531static ssd_chain_struct *update_subspace PARAMS ((sd_chain_struct *,
532 char *, int, int, int,
533 int, int, int, int,
534 int, int, int,
535 asection *));
536static sd_chain_struct *is_defined_space PARAMS ((char *));
537static ssd_chain_struct *is_defined_subspace PARAMS ((char *));
538static sd_chain_struct *pa_segment_to_space PARAMS ((asection *));
539static ssd_chain_struct *pa_subsegment_to_subspace PARAMS ((asection *,
540 subsegT));
541static sd_chain_struct *pa_find_space_by_number PARAMS ((int));
542static unsigned int pa_subspace_start PARAMS ((sd_chain_struct *, int));
49863f82
JL		 543static sd_chain_struct *pa_parse_space_stmt PARAMS ((char *, int));
544static int pa_next_subseg PARAMS ((sd_chain_struct *));
545static void pa_spaces_begin PARAMS ((void));
546#endif
252b5132
RH		 547static void pa_ip PARAMS ((char *));
548static void fix_new_hppa PARAMS ((fragS *, int, int, symbolS *,
549 long, expressionS *, int,
550 bfd_reloc_code_real_type,
551 enum hppa_reloc_field_selector_type_alt,
552 int, long, int *));
553static int is_end_of_statement PARAMS ((void));
554static int reg_name_search PARAMS ((char *));
555static int pa_chk_field_selector PARAMS ((char **));
556static int is_same_frag PARAMS ((fragS *, fragS *));
557static void process_exit PARAMS ((void));
252b5132 558static int log2 PARAMS ((int));
252b5132 559static unsigned int pa_stringer_aux PARAMS ((char *));
252b5132
RH		 560
561#ifdef OBJ_ELF
562static void hppa_elf_mark_end_of_function PARAMS ((void));
563static void pa_build_unwind_subspace PARAMS ((struct call_info *));
564#endif
565
566/* File and gloally scoped variable declarations. */
567
49863f82 568#ifdef OBJ_SOM
252b5132
RH		 569/* Root and final entry in the space chain. */
570static sd_chain_struct *space_dict_root;
571static sd_chain_struct *space_dict_last;
572
573/* The current space and subspace. */
574static sd_chain_struct *current_space;
575static ssd_chain_struct *current_subspace;
49863f82 576#endif
252b5132
RH		 577
578/* Root of the call_info chain. */
579static struct call_info *call_info_root;
580
581/* The last call_info (for functions) structure
582 seen so it can be associated with fixups and
583 function labels. */
584static struct call_info *last_call_info;
585
586/* The last call description (for actual calls). */
587static struct call_desc last_call_desc;
588
589/* handle of the OPCODE hash table */
590static struct hash_control *op_hash = NULL;
591
592/* This array holds the chars that always start a comment. If the
593 pre-processor is disabled, these aren't very useful. */
594const char comment_chars[] = ";";
595
596/* Table of pseudo ops for the PA. FIXME -- how many of these
597 are now redundant with the overall GAS and the object file
598 dependent tables? */
599const pseudo_typeS md_pseudo_table[] =
600{
601 /* align pseudo-ops on the PA specify the actual alignment requested,
602 not the log2 of the requested alignment. */
49863f82 603#ifdef OBJ_SOM
252b5132 604 {"align", pa_align, 8},
49863f82
JL		 605#endif
606#ifdef OBJ_ELF
607 {"align", s_align_bytes, 8},
608#endif
252b5132
RH		 609 {"begin_brtab", pa_brtab, 1},
610 {"begin_try", pa_try, 1},
611 {"block", pa_block, 1},
612 {"blockz", pa_block, 0},
613 {"byte", pa_cons, 1},
614 {"call", pa_call, 0},
615 {"callinfo", pa_callinfo, 0},
616 {"code", pa_code, 0},
617 {"comm", pa_comm, 0},
618#ifdef OBJ_SOM
619 {"compiler", pa_compiler, 0},
620#endif
621 {"copyright", pa_copyright, 0},
622 {"data", pa_data, 0},
623 {"double", pa_float_cons, 'd'},
077db52a 624 {"dword", pa_cons, 8},
252b5132
RH		 625 {"end", pa_end, 0},
626 {"end_brtab", pa_brtab, 0},
627 {"end_try", pa_try, 0},
628 {"enter", pa_enter, 0},
629 {"entry", pa_entry, 0},
630 {"equ", pa_equ, 0},
631 {"exit", pa_exit, 0},
632 {"export", pa_export, 0},
633 {"fill", pa_fill, 0},
634 {"float", pa_float_cons, 'f'},
635 {"half", pa_cons, 2},
636 {"import", pa_import, 0},
637 {"int", pa_cons, 4},
638 {"label", pa_label, 0},
639 {"lcomm", pa_lcomm, 0},
640 {"leave", pa_leave, 0},
641 {"level", pa_level, 0},
642 {"long", pa_cons, 4},
643 {"lsym", pa_lsym, 0},
49863f82 644#ifdef OBJ_SOM
252b5132 645 {"nsubspa", pa_subspace, 1},
49863f82 646#endif
252b5132
RH		 647 {"octa", pa_cons, 16},
648 {"org", pa_origin, 0},
649 {"origin", pa_origin, 0},
650 {"param", pa_param, 0},
651 {"proc", pa_proc, 0},
652 {"procend", pa_procend, 0},
653 {"quad", pa_cons, 8},
654 {"reg", pa_equ, 1},
655 {"short", pa_cons, 2},
656 {"single", pa_float_cons, 'f'},
49863f82 657#ifdef OBJ_SOM
252b5132
RH		 658 {"space", pa_space, 0},
659 {"spnum", pa_spnum, 0},
49863f82 660#endif
252b5132
RH		 661 {"string", pa_stringer, 0},
662 {"stringz", pa_stringer, 1},
49863f82 663#ifdef OBJ_SOM
252b5132 664 {"subspa", pa_subspace, 0},
49863f82 665#endif
252b5132
RH		 666 {"text", pa_text, 0},
667 {"version", pa_version, 0},
668 {"word", pa_cons, 4},
669 {NULL, 0, 0}
670};
671
672/* This array holds the chars that only start a comment at the beginning of
673 a line. If the line seems to have the form '# 123 filename'
674 .line and .file directives will appear in the pre-processed output.
675
676 Note that input_file.c hand checks for '#' at the beginning of the
677 first line of the input file. This is because the compiler outputs
678 #NO_APP at the beginning of its output.
679
680 Also note that C style comments will always work. */
681const char line_comment_chars[] = "#";
682
683/* This array holds the characters which act as line separators. */
684const char line_separator_chars[] = "!";
685
686/* Chars that can be used to separate mant from exp in floating point nums. */
687const char EXP_CHARS[] = "eE";
688
689/* Chars that mean this number is a floating point constant.
690 As in 0f12.456 or 0d1.2345e12.
691
692 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
693 changed in read.c. Ideally it shouldn't hae to know abou it at
694 all, but nothing is ideal around here. */
695const char FLT_CHARS[] = "rRsSfFdDxXpP";
696
697static struct pa_it the_insn;
698
699/* Points to the end of an expression just parsed by get_expressoin
700 and friends. FIXME. This shouldn't be handled with a file-global
701 variable. */
702static char *expr_end;
703
704/* Nonzero if a .callinfo appeared within the current procedure. */
705static int callinfo_found;
706
707/* Nonzero if the assembler is currently within a .entry/.exit pair. */
708static int within_entry_exit;
709
710/* Nonzero if the assembler is currently within a procedure definition. */
711static int within_procedure;
712
713/* Handle on strucutre which keep track of the last symbol
714 seen in each subspace. */
715static label_symbol_struct *label_symbols_rootp = NULL;
716
717/* Holds the last field selector. */
718static int hppa_field_selector;
719
993142d5 720#ifdef OBJ_SOM
252b5132
RH		 721/* A dummy bfd symbol so that all relocations have symbols of some kind. */
722static symbolS *dummy_symbol;
993142d5 723#endif
252b5132
RH		 724
725/* Nonzero if errors are to be printed. */
726static int print_errors = 1;
727
728/* List of registers that are pre-defined:
729
730 Each general register has one predefined name of the form
731 %r<REGNUM> which has the value <REGNUM>.
732
733 Space and control registers are handled in a similar manner,
734 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
735
736 Likewise for the floating point registers, but of the form
737 %fr<REGNUM>. Floating point registers have additional predefined
738 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
739 again have the value <REGNUM>.
740
741 Many registers also have synonyms:
742
743 %r26 - %r23 have %arg0 - %arg3 as synonyms
744 %r28 - %r29 have %ret0 - %ret1 as synonyms
745 %r30 has %sp as a synonym
746 %r27 has %dp as a synonym
747 %r2 has %rp as a synonym
748
749 Almost every control register has a synonym; they are not listed
750 here for brevity.
751
752 The table is sorted. Suitable for searching by a binary search. */
753
754static const struct pd_reg pre_defined_registers[] =
755{
756 {"%arg0", 26},
757 {"%arg1", 25},
758 {"%arg2", 24},
759 {"%arg3", 23},
760 {"%cr0", 0},
761 {"%cr10", 10},
762 {"%cr11", 11},
763 {"%cr12", 12},
764 {"%cr13", 13},
765 {"%cr14", 14},
766 {"%cr15", 15},
767 {"%cr16", 16},
768 {"%cr17", 17},
769 {"%cr18", 18},
770 {"%cr19", 19},
771 {"%cr20", 20},
772 {"%cr21", 21},
773 {"%cr22", 22},
774 {"%cr23", 23},
775 {"%cr24", 24},
776 {"%cr25", 25},
777 {"%cr26", 26},
778 {"%cr27", 27},
779 {"%cr28", 28},
780 {"%cr29", 29},
781 {"%cr30", 30},
782 {"%cr31", 31},
783 {"%cr8", 8},
784 {"%cr9", 9},
785 {"%dp", 27},
786 {"%eiem", 15},
787 {"%eirr", 23},
788 {"%fr0", 0},
789 {"%fr0l", 0},
790 {"%fr0r", 0},
791 {"%fr1", 1},
792 {"%fr10", 10},
793 {"%fr10l", 10},
794 {"%fr10r", 10},
795 {"%fr11", 11},
796 {"%fr11l", 11},
797 {"%fr11r", 11},
798 {"%fr12", 12},
799 {"%fr12l", 12},
800 {"%fr12r", 12},
801 {"%fr13", 13},
802 {"%fr13l", 13},
803 {"%fr13r", 13},
804 {"%fr14", 14},
805 {"%fr14l", 14},
806 {"%fr14r", 14},
807 {"%fr15", 15},
808 {"%fr15l", 15},
809 {"%fr15r", 15},
810 {"%fr16", 16},
811 {"%fr16l", 16},
812 {"%fr16r", 16},
813 {"%fr17", 17},
814 {"%fr17l", 17},
815 {"%fr17r", 17},
816 {"%fr18", 18},
817 {"%fr18l", 18},
818 {"%fr18r", 18},
819 {"%fr19", 19},
820 {"%fr19l", 19},
821 {"%fr19r", 19},
822 {"%fr1l", 1},
823 {"%fr1r", 1},
824 {"%fr2", 2},
825 {"%fr20", 20},
826 {"%fr20l", 20},
827 {"%fr20r", 20},
828 {"%fr21", 21},
829 {"%fr21l", 21},
830 {"%fr21r", 21},
831 {"%fr22", 22},
832 {"%fr22l", 22},
833 {"%fr22r", 22},
834 {"%fr23", 23},
835 {"%fr23l", 23},
836 {"%fr23r", 23},
837 {"%fr24", 24},
838 {"%fr24l", 24},
839 {"%fr24r", 24},
840 {"%fr25", 25},
841 {"%fr25l", 25},
842 {"%fr25r", 25},
843 {"%fr26", 26},
844 {"%fr26l", 26},
845 {"%fr26r", 26},
846 {"%fr27", 27},
847 {"%fr27l", 27},
848 {"%fr27r", 27},
849 {"%fr28", 28},
850 {"%fr28l", 28},
851 {"%fr28r", 28},
852 {"%fr29", 29},
853 {"%fr29l", 29},
854 {"%fr29r", 29},
855 {"%fr2l", 2},
856 {"%fr2r", 2},
857 {"%fr3", 3},
858 {"%fr30", 30},
859 {"%fr30l", 30},
860 {"%fr30r", 30},
861 {"%fr31", 31},
862 {"%fr31l", 31},
863 {"%fr31r", 31},
864 {"%fr3l", 3},
865 {"%fr3r", 3},
866 {"%fr4", 4},
867 {"%fr4l", 4},
868 {"%fr4r", 4},
869 {"%fr5", 5},
870 {"%fr5l", 5},
871 {"%fr5r", 5},
872 {"%fr6", 6},
873 {"%fr6l", 6},
874 {"%fr6r", 6},
875 {"%fr7", 7},
876 {"%fr7l", 7},
877 {"%fr7r", 7},
878 {"%fr8", 8},
879 {"%fr8l", 8},
880 {"%fr8r", 8},
881 {"%fr9", 9},
882 {"%fr9l", 9},
883 {"%fr9r", 9},
884 {"%hta", 25},
885 {"%iir", 19},
886 {"%ior", 21},
887 {"%ipsw", 22},
888 {"%isr", 20},
889 {"%itmr", 16},
890 {"%iva", 14},
891 {"%pcoq", 18},
892 {"%pcsq", 17},
893 {"%pidr1", 8},
894 {"%pidr2", 9},
895 {"%pidr3", 12},
896 {"%pidr4", 13},
897 {"%ppda", 24},
898 {"%r0", 0},
899 {"%r1", 1},
900 {"%r10", 10},
901 {"%r11", 11},
902 {"%r12", 12},
903 {"%r13", 13},
904 {"%r14", 14},
905 {"%r15", 15},
906 {"%r16", 16},
907 {"%r17", 17},
908 {"%r18", 18},
909 {"%r19", 19},
910 {"%r2", 2},
911 {"%r20", 20},
912 {"%r21", 21},
913 {"%r22", 22},
914 {"%r23", 23},
915 {"%r24", 24},
916 {"%r25", 25},
917 {"%r26", 26},
918 {"%r27", 27},
919 {"%r28", 28},
920 {"%r29", 29},
921 {"%r3", 3},
922 {"%r30", 30},
923 {"%r31", 31},
924 {"%r4", 4},
925 {"%r5", 5},
926 {"%r6", 6},
927 {"%r7", 7},
928 {"%r8", 8},
929 {"%r9", 9},
930 {"%rctr", 0},
931 {"%ret0", 28},
932 {"%ret1", 29},
933 {"%rp", 2},
934 {"%sar", 11},
935 {"%sp", 30},
936 {"%sr0", 0},
937 {"%sr1", 1},
938 {"%sr2", 2},
939 {"%sr3", 3},
940 {"%sr4", 4},
941 {"%sr5", 5},
942 {"%sr6", 6},
943 {"%sr7", 7},
944 {"%tr0", 24},
945 {"%tr1", 25},
946 {"%tr2", 26},
947 {"%tr3", 27},
948 {"%tr4", 28},
949 {"%tr5", 29},
950 {"%tr6", 30},
951 {"%tr7", 31}
952};
953
954/* This table is sorted by order of the length of the string. This is
955 so we check for <> before we check for <. If we had a <> and checked
956 for < first, we would get a false match. */
957static const struct fp_cond_map fp_cond_map[] =
958{
959 {"false?", 0},
960 {"false", 1},
961 {"true?", 30},
962 {"true", 31},
963 {"!<=>", 3},
964 {"!?>=", 8},
965 {"!?<=", 16},
966 {"!<>", 7},
967 {"!>=", 11},
968 {"!?>", 12},
969 {"?<=", 14},
970 {"!<=", 19},
971 {"!?<", 20},
972 {"?>=", 22},
973 {"!?=", 24},
974 {"!=t", 27},
975 {"<=>", 29},
976 {"=t", 5},
977 {"?=", 6},
978 {"?<", 10},
979 {"<=", 13},
980 {"!>", 15},
981 {"?>", 18},
982 {">=", 21},
983 {"!<", 23},
984 {"<>", 25},
985 {"!=", 26},
986 {"!?", 28},
987 {"?", 2},
988 {"=", 4},
989 {"<", 9},
990 {">", 17}
991};
992
993static const struct selector_entry selector_table[] =
994{
995 {"f", e_fsel},
996 {"l", e_lsel},
997 {"ld", e_ldsel},
998 {"lp", e_lpsel},
999 {"lr", e_lrsel},
1000 {"ls", e_lssel},
1001 {"lt", e_ltsel},
39ba5561 1002 {"ltp", e_ltpsel},
252b5132
RH		 1003 {"n", e_nsel},
1004 {"nl", e_nlsel},
1005 {"nlr", e_nlrsel},
1006 {"p", e_psel},
1007 {"r", e_rsel},
1008 {"rd", e_rdsel},
1009 {"rp", e_rpsel},
1010 {"rr", e_rrsel},
1011 {"rs", e_rssel},
1012 {"rt", e_rtsel},
39ba5561 1013 {"rtp", e_rtpsel},
252b5132
RH		 1014 {"t", e_tsel},
1015};
1016
49863f82 1017#ifdef OBJ_SOM
252b5132
RH		 1018/* default space and subspace dictionaries */
1019
1020#define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1021#define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1022
1023/* pre-defined subsegments (subspaces) for the HPPA. */
1024#define SUBSEG_CODE 0
1025#define SUBSEG_LIT 1
1026#define SUBSEG_MILLI 2
1027#define SUBSEG_DATA 0
1028#define SUBSEG_BSS 2
1029#define SUBSEG_UNWIND 3
1030#define SUBSEG_GDB_STRINGS 0
1031#define SUBSEG_GDB_SYMBOLS 1
1032
1033static struct default_subspace_dict pa_def_subspaces[] =
1034{
49863f82
JL		 1035 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE},
1036 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA},
1037 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT},
1038 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI},
1039 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS},
252b5132
RH		 1040 {NULL, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1041};
1042
1043static struct default_space_dict pa_def_spaces[] =
1044{
49863f82
JL		 1045 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL},
1046 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL},
1047 {NULL, 0, 0, 0, 0, 0, ASEC_NULL}
252b5132
RH		 1048};
1049
1050/* Misc local definitions used by the assembler. */
1051
252b5132
RH		 1052/* These macros are used to maintain spaces/subspaces. */
1053#define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1054#define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1055#define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1056#define SPACE_NAME(space_chain) (space_chain)->sd_name
1057
1058#define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1059#define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
49863f82
JL		 1060#endif
1061
1062/* Return nonzero if the string pointed to by S potentially represents
1063 a right or left half of a FP register */
1064#define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1065#define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
252b5132
RH		 1066
1067/* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1068 main loop after insertion. */
1069
1070#define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1071 { \
1072 ((OPCODE) |= (FIELD) << (START)); \
1073 continue; \
1074 }
1075
1076/* Simple range checking for FIELD againt HIGH and LOW bounds.
1077 IGNORE is used to suppress the error message. */
1078
1079#define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1080 { \
1081 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1082 { \
1083 if (! IGNORE) \
1084 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1085 (int) (FIELD));\
1086 break; \
1087 } \
1088 }
1089
1090#define is_DP_relative(exp) \
1091 ((exp).X_op == O_subtract \
a0f75b47 1092 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
252b5132
RH		 1093
1094#define is_PC_relative(exp) \
1095 ((exp).X_op == O_subtract \
a0f75b47 1096 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
252b5132
RH		 1097
1098/* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1099 always be able to reduce the expression to a constant, so we don't
1100 need real complex handling yet. */
1101#define is_complex(exp) \
1102 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1103
1104/* Actual functions to implement the PA specific code for the assembler. */
1105
1106/* Called before writing the object file. Make sure entry/exit and
1107 proc/procend pairs match. */
1108
1109void
1110pa_check_eof ()
1111{
1112 if (within_entry_exit)
1113 as_fatal (_("Missing .exit\n"));
1114
1115 if (within_procedure)
1116 as_fatal (_("Missing .procend\n"));
1117}
1118
252b5132
RH		 1119/* Returns a pointer to the label_symbol_struct for the current space.
1120 or NULL if no label_symbol_struct exists for the current space. */
1121
1122static label_symbol_struct *
1123pa_get_label ()
1124{
1125 label_symbol_struct *label_chain;
252b5132
RH		 1126
1127 for (label_chain = label_symbols_rootp;
1128 label_chain;
1129 label_chain = label_chain->lss_next)
49863f82
JL		 1130 {
1131#ifdef OBJ_SOM
1132 if (current_space == label_chain->lss_space && label_chain->lss_label)
1133 return label_chain;
1134#endif
1135#ifdef OBJ_ELF
1136 if (now_seg == label_chain->lss_segment && label_chain->lss_label)
252b5132 1137 return label_chain;
49863f82
JL		 1138#endif
1139 }
252b5132
RH		 1140
1141 return NULL;
1142}
1143
1144/* Defines a label for the current space. If one is already defined,
1145 this function will replace it with the new label. */
1146
1147void
1148pa_define_label (symbol)
1149 symbolS *symbol;
1150{
1151 label_symbol_struct *label_chain = pa_get_label ();
252b5132
RH		 1152
1153 if (label_chain)
1154 label_chain->lss_label = symbol;
1155 else
1156 {
1157 /* Create a new label entry and add it to the head of the chain. */
1158 label_chain
1159 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1160 label_chain->lss_label = symbol;
49863f82
JL		 1161#ifdef OBJ_SOM
1162 label_chain->lss_space = current_space;
1163#endif
1164#ifdef OBJ_ELF
1165 label_chain->lss_segment = now_seg;
1166#endif
252b5132
RH		 1167 label_chain->lss_next = NULL;
1168
1169 if (label_symbols_rootp)
1170 label_chain->lss_next = label_symbols_rootp;
1171
1172 label_symbols_rootp = label_chain;
1173 }
1174}
1175
1176/* Removes a label definition for the current space.
1177 If there is no label_symbol_struct entry, then no action is taken. */
1178
1179static void
1180pa_undefine_label ()
1181{
1182 label_symbol_struct *label_chain;
1183 label_symbol_struct *prev_label_chain = NULL;
252b5132
RH		 1184
1185 for (label_chain = label_symbols_rootp;
1186 label_chain;
1187 label_chain = label_chain->lss_next)
1188 {
49863f82
JL		 1189 if (1
1190#ifdef OBJ_SOM
1191 && current_space == label_chain->lss_space && label_chain->lss_label
1192#endif
1193#ifdef OBJ_ELF
1194 && now_seg == label_chain->lss_segment && label_chain->lss_label
1195#endif
1196 )
252b5132
RH		 1197 {
1198 /* Remove the label from the chain and free its memory. */
1199 if (prev_label_chain)
1200 prev_label_chain->lss_next = label_chain->lss_next;
1201 else
1202 label_symbols_rootp = label_chain->lss_next;
1203
1204 free (label_chain);
1205 break;
1206 }
1207 prev_label_chain = label_chain;
1208 }
1209}
1210
1211
1212/* An HPPA-specific version of fix_new. This is required because the HPPA
1213 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1214 results in the creation of an instance of an hppa_fix_struct. An
1215 hppa_fix_struct stores the extra information along with a pointer to the
1216 original fixS. This is attached to the original fixup via the
1217 tc_fix_data field. */
1218
1219static void
1220fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
1221 r_type, r_field, r_format, arg_reloc, unwind_bits)
1222 fragS *frag;
1223 int where;
1224 int size;
1225 symbolS *add_symbol;
1226 long offset;
1227 expressionS *exp;
1228 int pcrel;
1229 bfd_reloc_code_real_type r_type;
1230 enum hppa_reloc_field_selector_type_alt r_field;
1231 int r_format;
1232 long arg_reloc;
1233 int* unwind_bits;
1234{
1235 fixS *new_fix;
1236
1237 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
1238 obstack_alloc (&notes, sizeof (struct hppa_fix_struct));
1239
1240 if (exp != NULL)
1241 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1242 else
1243 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
1244 new_fix->tc_fix_data = (void *) hppa_fix;
1245 hppa_fix->fx_r_type = r_type;
1246 hppa_fix->fx_r_field = r_field;
1247 hppa_fix->fx_r_format = r_format;
1248 hppa_fix->fx_arg_reloc = arg_reloc;
1249 hppa_fix->segment = now_seg;
1250#ifdef OBJ_SOM
1251 if (r_type == R_ENTRY || r_type == R_EXIT)
1252 new_fix->fx_offset = *unwind_bits;
1253#endif
1254
1255 /* foo-$global$ is used to access non-automatic storage. $global$
1256 is really just a marker and has served its purpose, so eliminate
1257 it now so as not to confuse write.c. */
1258 if (new_fix->fx_subsy
1259 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
1260 new_fix->fx_subsy = NULL;
1261}
1262
1263/* Parse a .byte, .word, .long expression for the HPPA. Called by
1264 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1265
1266void
1267parse_cons_expression_hppa (exp)
1268 expressionS *exp;
1269{
1270 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
1271 expression (exp);
1272}
1273
1274/* This fix_new is called by cons via TC_CONS_FIX_NEW.
1275 hppa_field_selector is set by the parse_cons_expression_hppa. */
1276
1277void
1278cons_fix_new_hppa (frag, where, size, exp)
1279 fragS *frag;
1280 int where;
1281 int size;
1282 expressionS *exp;
1283{
1284 unsigned int rel_type;
1285
1286 /* Get a base relocation type. */
1287 if (is_DP_relative (*exp))
1288 rel_type = R_HPPA_GOTOFF;
1289 else if (is_complex (*exp))
1290 rel_type = R_HPPA_COMPLEX;
1291 else
1292 rel_type = R_HPPA;
1293
1294 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
1295 as_warn (_("Invalid field selector. Assuming F%%."));
1296
1297 fix_new_hppa (frag, where, size,
1298 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
077db52a 1299 hppa_field_selector, size * 8, 0, NULL);
252b5132
RH		 1300
1301 /* Reset field selector to its default state. */
1302 hppa_field_selector = 0;
1303}
1304
1305/* This function is called once, at assembler startup time. It should
1306 set up all the tables, etc. that the MD part of the assembler will need. */
1307
1308void
1309md_begin ()
1310{
1311 const char *retval = NULL;
1312 int lose = 0;
1313 unsigned int i = 0;
1314
1315 last_call_info = NULL;
1316 call_info_root = NULL;
1317
1318 /* Set the default machine type. */
1319 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
1320 as_warn (_("could not set architecture and machine"));
1321
1322 /* Folding of text and data segments fails miserably on the PA.
1323 Warn user and disable "-R" option. */
1324 if (flag_readonly_data_in_text)
1325 {
1326 as_warn (_("-R option not supported on this target."));
1327 flag_readonly_data_in_text = 0;
1328 }
1329
49863f82 1330#ifdef OBJ_SOM
252b5132 1331 pa_spaces_begin ();
49863f82 1332#endif
252b5132
RH		 1333
1334 op_hash = hash_new ();
1335
1336 while (i < NUMOPCODES)
1337 {
1338 const char *name = pa_opcodes[i].name;
1339 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
1340 if (retval != NULL && *retval != '\0')
1341 {
1342 as_fatal (_("Internal error: can't hash `%s': %s\n"), name, retval);
1343 lose = 1;
1344 }
1345 do
1346 {
1347 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
1348 != pa_opcodes[i].match)
1349 {
1350 fprintf (stderr, _("internal error: losing opcode: `%s' \"%s\"\n"),
1351 pa_opcodes[i].name, pa_opcodes[i].args);
1352 lose = 1;
1353 }
1354 ++i;
1355 }
1356 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
1357 }
1358
1359 if (lose)
1360 as_fatal (_("Broken assembler. No assembly attempted."));
1361
49863f82 1362#ifdef OBJ_SOM
252b5132
RH		 1363 /* SOM will change text_section. To make sure we never put
1364 anything into the old one switch to the new one now. */
1365 subseg_set (text_section, 0);
49863f82 1366#endif
252b5132 1367
993142d5 1368#ifdef OBJ_SOM
252b5132
RH		 1369 dummy_symbol = symbol_find_or_make ("L$dummy");
1370 S_SET_SEGMENT (dummy_symbol, text_section);
993142d5
ILT		 1371 /* Force the symbol to be converted to a real symbol. */
1372 (void) symbol_get_bfdsym (dummy_symbol);
1373#endif
252b5132
RH		 1374}
1375
1376/* Assemble a single instruction storing it into a frag. */
1377void
1378md_assemble (str)
1379 char *str;
1380{
1381 char *to;
1382
1383 /* The had better be something to assemble. */
1384 assert (str);
1385
1386 /* If we are within a procedure definition, make sure we've
1387 defined a label for the procedure; handle case where the
1388 label was defined after the .PROC directive.
1389
1390 Note there's not need to diddle with the segment or fragment
1391 for the label symbol in this case. We have already switched
1392 into the new $CODE$ subspace at this point. */
1393 if (within_procedure && last_call_info->start_symbol == NULL)
1394 {
1395 label_symbol_struct *label_symbol = pa_get_label ();
1396
1397 if (label_symbol)
1398 {
1399 if (label_symbol->lss_label)
1400 {
1401 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47
ILT		 1402 symbol_get_bfdsym (label_symbol->lss_label)->flags
1403 |= BSF_FUNCTION;
252b5132
RH		 1404#ifdef OBJ_SOM
1405 /* Also handle allocation of a fixup to hold the unwind
1406 information when the label appears after the proc/procend. */
1407 if (within_entry_exit)
1408 {
1409 char *where = frag_more (0);
1410
1411 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
1412 NULL, (offsetT) 0, NULL,
1413 0, R_HPPA_ENTRY, e_fsel, 0, 0,
1414 (int *)&last_call_info->ci_unwind.descriptor);
1415 }
1416#endif
1417 }
1418 else
1419 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1420 }
1421 else
1422 as_bad (_("Missing function name for .PROC"));
1423 }
1424
1425 /* Assemble the instruction. Results are saved into "the_insn". */
1426 pa_ip (str);
1427
1428 /* Get somewhere to put the assembled instrution. */
1429 to = frag_more (4);
1430
1431 /* Output the opcode. */
1432 md_number_to_chars (to, the_insn.opcode, 4);
1433
1434 /* If necessary output more stuff. */
1435 if (the_insn.reloc != R_HPPA_NONE)
1436 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1437 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1438 the_insn.reloc, the_insn.field_selector,
1439 the_insn.format, the_insn.arg_reloc, NULL);
1440}
1441
1442/* Do the real work for assembling a single instruction. Store results
1443 into the global "the_insn" variable. */
1444
1445static void
1446pa_ip (str)
1447 char *str;
1448{
1449 char *error_message = "";
1450 char *s, c, *argstart, *name, *save_s;
1451 const char *args;
1452 int match = FALSE;
1453 int comma = 0;
1454 int cmpltr, nullif, flag, cond, num;
1455 unsigned long opcode;
1456 struct pa_opcode *insn;
1457
49863f82 1458#ifdef OBJ_SOM
252b5132
RH		 1459 /* We must have a valid space and subspace. */
1460 pa_check_current_space_and_subspace ();
49863f82 1461#endif
252b5132 1462
b1c5e0ee
JL		 1463 /* Convert everything up to the first whitespace character into lower
1464 case. */
1465 for (s = str; *s != ' ' && *s != '\t' && *s != '\n' && *s != '\0'; s++)
1466 if (isupper (*s))
1467 *s = tolower (*s);
1468
252b5132
RH		 1469 /* Skip to something interesting. */
1470 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1471 ;
1472
1473 switch (*s)
1474 {
1475
1476 case '\0':
1477 break;
1478
1479 case ',':
1480 comma = 1;
1481
1482 /*FALLTHROUGH */
1483
1484 case ' ':
1485 *s++ = '\0';
1486 break;
1487
1488 default:
1489 as_fatal (_("Unknown opcode: `%s'"), str);
1490 }
1491
1492 save_s = str;
1493
252b5132
RH		 1494 /* Look up the opcode in the has table. */
1495 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1496 {
1497 as_bad ("Unknown opcode: `%s'", str);
1498 return;
1499 }
1500
1501 if (comma)
1502 {
1503 *--s = ',';
1504 }
1505
1506 /* Mark the location where arguments for the instruction start, then
1507 start processing them. */
1508 argstart = s;
1509 for (;;)
1510 {
1511 /* Do some initialization. */
1512 opcode = insn->match;
1513 memset (&the_insn, 0, sizeof (the_insn));
1514
1515 the_insn.reloc = R_HPPA_NONE;
1516
1517 /* If this instruction is specific to a particular architecture,
1518 then set a new architecture. */
1519 /* But do not automatically promote to pa2.0. The automatic promotion
1520 crud is for compatability with HP's old assemblers only. */
1521 if (insn->arch < 20
1522 && bfd_get_mach (stdoutput) < insn->arch)
1523 {
1524 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, insn->arch))
1525 as_warn (_("could not update architecture and machine"));
1526 }
1527 else if (bfd_get_mach (stdoutput) < insn->arch)
1528 {
1529 match = FALSE;
1530 goto failed;
1531 }
1532
1533 /* Build the opcode, checking as we go to make
1534 sure that the operands match. */
1535 for (args = insn->args;; ++args)
1536 {
1537 switch (*args)
1538 {
1539
1540 /* End of arguments. */
1541 case '\0':
1542 if (*s == '\0')
1543 match = TRUE;
1544 break;
1545
1546 case '+':
1547 if (*s == '+')
1548 {
1549 ++s;
1550 continue;
1551 }
1552 if (*s == '-')
1553 continue;
1554 break;
1555
1556 /* These must match exactly. */
1557 case '(':
1558 case ')':
1559 case ',':
1560 case ' ':
1561 if (*s++ == *args)
1562 continue;
1563 break;
1564
1565 /* Handle a 5 bit register or control register field at 10. */
1566 case 'b':
1567 case '^':
1568 num = pa_parse_number (&s, 0);
1569 CHECK_FIELD (num, 31, 0, 0);
1570 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
1571
a97685e9
JL		 1572 /* Handle %sar or %cr11. No bits get set, we just verify that it
1573 is there. */
1574 case '!':
1575 /* Skip whitespace before register. */
1576 while (*s == ' ' || *s == '\t')
1577 s = s + 1;
1578
1579 if (!strncasecmp(s, "%sar", 4))
1580 {
1581 s += 4;
1582 continue;
1583 }
1584 else if (!strncasecmp(s, "%cr11", 5))
1585 {
1586 s += 5;
1587 continue;
1588 }
1589 break;
1590
252b5132
RH		 1591 /* Handle a 5 bit register field at 15. */
1592 case 'x':
1593 num = pa_parse_number (&s, 0);
1594 CHECK_FIELD (num, 31, 0, 0);
1595 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1596
1597 /* Handle a 5 bit register field at 31. */
1598 case 'y':
1599 case 't':
1600 num = pa_parse_number (&s, 0);
1601 CHECK_FIELD (num, 31, 0, 0);
1602 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1603
413c94ba
JL		 1604 /* Handle a 5 bit register field at 10 and 15. */
1605 case 'a':
1606 num = pa_parse_number (&s, 0);
1607 CHECK_FIELD (num, 31, 0, 0);
1608 opcode |= num << 16;
1609 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
1610
252b5132
RH		 1611 /* Handle a 5 bit field length at 31. */
1612 case 'T':
1613 num = pa_get_absolute_expression (&the_insn, &s);
1614 s = expr_end;
1615 CHECK_FIELD (num, 32, 1, 0);
1616 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
1617
1618 /* Handle a 5 bit immediate at 15. */
1619 case '5':
1620 num = pa_get_absolute_expression (&the_insn, &s);
1621 s = expr_end;
1622 CHECK_FIELD (num, 15, -16, 0);
1623 low_sign_unext (num, 5, &num);
1624 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1625
1626 /* Handle a 5 bit immediate at 31. */
1627 case 'V':
1628 num = pa_get_absolute_expression (&the_insn, &s);
1629 s = expr_end;
1630 CHECK_FIELD (num, 15, -16, 0)
1631 low_sign_unext (num, 5, &num);
1632 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1633
1634 /* Handle an unsigned 5 bit immediate at 31. */
1635 case 'r':
1636 num = pa_get_absolute_expression (&the_insn, &s);
1637 s = expr_end;
1638 CHECK_FIELD (num, 31, 0, 0);
1639 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1640
1641 /* Handle an unsigned 5 bit immediate at 15. */
1642 case 'R':
1643 num = pa_get_absolute_expression (&the_insn, &s);
1644 s = expr_end;
1645 CHECK_FIELD (num, 31, 0, 0);
1646 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1647
1648 /* Handle a 2 bit space identifier at 17. */
1649 case 's':
1650 num = pa_parse_number (&s, 0);
1651 CHECK_FIELD (num, 3, 0, 1);
1652 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
1653
1654 /* Handle a 3 bit space identifier at 18. */
1655 case 'S':
1656 num = pa_parse_number (&s, 0);
1657 CHECK_FIELD (num, 7, 0, 1);
1658 dis_assemble_3 (num, &num);
1659 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
1660
28252e61 1661 /* Handle all completers. */
252b5132 1662 case 'c':
28252e61
JL		 1663 switch (*++args)
1664 {
1665
1666 /* Handle a completer for an indexing load or store. */
1667 case 'x':
252b5132 1668 {
28252e61
JL		 1669 int uu = 0;
1670 int m = 0;
1671 int i = 0;
1672 while (*s == ',' && i < 2)
252b5132 1673 {
28252e61
JL		 1674 s++;
1675 if (strncasecmp (s, "sm", 2) == 0)
1676 {
1677 uu = 1;
1678 m = 1;
1679 s++;
1680 i++;
1681 }
1682 else if (strncasecmp (s, "m", 1) == 0)
1683 m = 1;
1684 else if (strncasecmp (s, "s", 1) == 0)
1685 uu = 1;
1686 else
1687 as_bad (_("Invalid Indexed Load Completer."));
252b5132
RH		 1688 s++;
1689 i++;
1690 }
28252e61
JL		 1691 if (i > 2)
1692 as_bad (_("Invalid Indexed Load Completer Syntax."));
1693 opcode |= m << 5;
1694 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
252b5132 1695 }
252b5132 1696
28252e61
JL		 1697 /* Handle a short load/store completer. */
1698 case 'm':
252b5132 1699 {
28252e61
JL		 1700 int a = 0;
1701 int m = 0;
1702 if (*s == ',')
252b5132 1703 {
28252e61
JL		 1704 s++;
1705 if (strncasecmp (s, "ma", 2) == 0)
1706 {
1707 a = 0;
1708 m = 1;
1709 }
1710 else if (strncasecmp (s, "mb", 2) == 0)
1711 {
1712 a = 1;
1713 m = 1;
1714 }
1715 else
1716 as_bad (_("Invalid Short Load/Store Completer."));
1717 s += 2;
252b5132 1718 }
252b5132 1719
252b5132
RH		 1720 opcode |= m << 5;
1721 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1722 }
252b5132 1723
28252e61
JL		 1724 /* Handle a stbys completer. */
1725 case 's':
252b5132 1726 {
28252e61
JL		 1727 int a = 0;
1728 int m = 0;
1729 int i = 0;
1730 while (*s == ',' && i < 2)
1731 {
1732 s++;
1733 if (strncasecmp (s, "m", 1) == 0)
1734 m = 1;
1735 else if (strncasecmp (s, "b", 1) == 0)
1736 a = 0;
1737 else if (strncasecmp (s, "e", 1) == 0)
1738 a = 1;
1739 else
1740 as_bad (_("Invalid Store Bytes Short Completer"));
1741 s++;
1742 i++;
1743 }
1744 if (i > 2)
252b5132 1745 as_bad (_("Invalid Store Bytes Short Completer"));
28252e61
JL		 1746 opcode |= m << 5;
1747 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
252b5132 1748 }
28252e61
JL		 1749
1750 /* Handle a system control completer. */
1751 case 'Z':
1752 if (*s == ',' && (*(s + 1) == 'm' || *(s + 1) == 'M'))
1753 {
1754 flag = 1;
1755 s += 2;
1756 }
1757 else
1758 flag = 0;
1759
1760 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
1761
413c94ba
JL		 1762 /* Handle signed/unsigned at 21. */
1763 case 'S':
1764 {
1765 int sign = 1;
1766 if (strncasecmp (s, ",s", 2) == 0)
1767 {
1768 sign = 1;
1769 s += 2;
1770 }
1771 else if (strncasecmp (s, ",u", 2) == 0)
1772 {
1773 sign = 0;
1774 s += 2;
1775 }
1776
1777 INSERT_FIELD_AND_CONTINUE (opcode, sign, 10);
1778 }
1779
1780 /* Handle left/right combination at 17:18. */
1781 case 'h':
1782 if (*s++ == ',')
1783 {
1784 int lr = 0;
1785 if (*s == 'r')
1786 lr = 2;
1787 else if (*s == 'l')
1788 lr = 0;
1789 else
1790 as_bad(_("Invalid left/right combination completer"));
1791
1792 s++;
1793 INSERT_FIELD_AND_CONTINUE (opcode, lr, 13);
1794 }
1795 else
1796 as_bad(_("Invalid left/right combination completer"));
1797 break;
1798
1799 /* Handle saturation at 24:25. */
1800 case 'H':
1801 {
1802 int sat = 3;
1803 if (strncasecmp (s, ",ss", 3) == 0)
1804 {
1805 sat = 1;
1806 s += 3;
1807 }
1808 else if (strncasecmp (s, ",us", 3) == 0)
1809 {
1810 sat = 0;
1811 s += 3;
1812 }
1813
1814 INSERT_FIELD_AND_CONTINUE (opcode, sat, 6);
1815 }
1816
1817 /* Handle permutation completer. */
1818 case '*':
1819 if (*s++ == ',')
1820 {
1821 int permloc[4] = {13,10,8,6};
1822 int perm = 0;
1823 int i = 0;
1824 for (; i < 4; i++)
1825 {
1826 switch (*s++)
1827 {
1828 case '0':
1829 perm = 0;
1830 break;
1831 case '1':
1832 perm = 1;
1833 break;
1834 case '2':
1835 perm = 2;
1836 break;
1837 case '3':
1838 perm = 3;
1839 break;
1840 default:
1841 as_bad(_("Invalid permutation completer"));
1842 }
1843 opcode |= perm << permloc[i];
1844 }
1845 continue;
1846 }
1847 else
1848 as_bad(_("Invalid permutation completer"));
1849 break;
1850
28252e61
JL		 1851 default:
1852 abort ();
1853 }
1854 break;
252b5132 1855
55a914bc 1856 /* Handle all conditions. */
252b5132 1857 case '?':
55a914bc
JL		 1858 {
1859 args++;
1860 switch (*args)
1861 {
1862 /* Handle FP compare conditions. */
1863 case 'f':
1864 cond = pa_parse_fp_cmp_cond (&s);
1865 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
1866
1867 /* Handle an add condition. */
9a913dfb 1868 case 'A':
55a914bc
JL		 1869 case 'a':
1870 cmpltr = 0;
1871 flag = 0;
1872 if (*s == ',')
1873 {
1874 s++;
9a913dfb
JL		 1875
1876 /* 64 bit conditions. */
1877 if (*args == 'A')
1878 {
1879 if (*s == '*')
1880 s++;
1881 else
1882 break;
1883 }
17d9105c
JL		 1884 else if (*s == '*')
1885 break;
55a914bc 1886 name = s;
9a913dfb 1887
55a914bc
JL		 1888 while (*s != ',' && *s != ' ' && *s != '\t')
1889 s += 1;
1890 c = *s;
1891 *s = 0x00;
1892 if (strcmp (name, "=") == 0)
1893 cmpltr = 1;
1894 else if (strcmp (name, "<") == 0)
1895 cmpltr = 2;
1896 else if (strcmp (name, "<=") == 0)
1897 cmpltr = 3;
1898 else if (strcasecmp (name, "nuv") == 0)
1899 cmpltr = 4;
1900 else if (strcasecmp (name, "znv") == 0)
1901 cmpltr = 5;
1902 else if (strcasecmp (name, "sv") == 0)
1903 cmpltr = 6;
1904 else if (strcasecmp (name, "od") == 0)
1905 cmpltr = 7;
1906 else if (strcasecmp (name, "tr") == 0)
1907 {
1908 cmpltr = 0;
1909 flag = 1;
1910 }
1911 else if (strcmp (name, "<>") == 0)
1912 {
1913 cmpltr = 1;
1914 flag = 1;
1915 }
1916 else if (strcmp (name, ">=") == 0)
1917 {
1918 cmpltr = 2;
1919 flag = 1;
1920 }
1921 else if (strcmp (name, ">") == 0)
1922 {
1923 cmpltr = 3;
1924 flag = 1;
1925 }
1926 else if (strcasecmp (name, "uv") == 0)
1927 {
1928 cmpltr = 4;
1929 flag = 1;
1930 }
1931 else if (strcasecmp (name, "vnz") == 0)
1932 {
1933 cmpltr = 5;
1934 flag = 1;
1935 }
1936 else if (strcasecmp (name, "nsv") == 0)
1937 {
1938 cmpltr = 6;
1939 flag = 1;
1940 }
1941 else if (strcasecmp (name, "ev") == 0)
1942 {
1943 cmpltr = 7;
1944 flag = 1;
1945 }
9a913dfb
JL		 1946 /* ",*" is a valid condition. */
1947 else if (*args == 'a')
55a914bc
JL		 1948 as_bad (_("Invalid Add Condition: %s"), name);
1949 *s = c;
1950 }
1951 opcode |= cmpltr << 13;
1952 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 1953
55a914bc
JL		 1954 /* Handle non-negated add and branch condition. */
1955 case 'd':
1956 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
1957 if (cmpltr < 0)
1958 {
1959 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
1960 cmpltr = 0;
1961 }
1962 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
1963
9a913dfb
JL		 1964 /* Handle negated add and branch condition. */
1965 case 'D':
1966 abort ();
1967
1968 /* Handle wide-mode non-negated add and branch condition. */
1969 case 'w':
1970 abort ();
1971
1972 /* Handle wide-mode negated add and branch condition. */
1973 case 'W':
1974 abort();
1975
55a914bc
JL		 1976 /* Handle a negated or non-negated add and branch
1977 condition. */
1978 case '@':
1979 save_s = s;
1980 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
1981 if (cmpltr < 0)
1982 {
1983 s = save_s;
1984 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
1985 if (cmpltr < 0)
1986 {
1987 as_bad (_("Invalid Compare/Subtract Condition"));
1988 cmpltr = 0;
1989 }
1990 else
1991 {
1992 /* Negated condition requires an opcode change. */
1993 opcode |= 1 << 27;
1994 }
1995 }
1996 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
252b5132 1997
55a914bc 1998 /* Handle branch on bit conditions. */
9a913dfb 1999 case 'B':
55a914bc
JL		 2000 case 'b':
2001 cmpltr = 0;
2002 if (*s == ',')
2003 {
2004 s++;
9a913dfb
JL		 2005
2006 if (*args == 'B')
2007 {
2008 if (*s == '*')
2009 s++;
2010 else
2011 break;
2012 }
17d9105c
JL		 2013 else if (*s == '*')
2014 break;
9a913dfb 2015
55a914bc
JL		 2016 if (strncmp (s, "<", 1) == 0)
2017 {
2018 cmpltr = 0;
2019 s++;
2020 }
2021 else if (strncmp (s, ">=", 2) == 0)
2022 {
2023 cmpltr = 1;
2024 s += 2;
2025 }
2026 else
2027 as_bad (_("Invalid Bit Branch Condition: %c"), *s);
2028 }
2029 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 15);
252b5132 2030
55a914bc 2031 /* Handle a compare/subtract condition. */
9a913dfb 2032 case 'S':
55a914bc
JL		 2033 case 's':
2034 cmpltr = 0;
2035 flag = 0;
2036 if (*s == ',')
2037 {
2038 s++;
9a913dfb
JL		 2039
2040 /* 64 bit conditions. */
2041 if (*args == 'S')
2042 {
2043 if (*s == '*')
2044 s++;
2045 else
2046 break;
2047 }
17d9105c
JL		 2048 else if (*s == '*')
2049 break;
55a914bc 2050 name = s;
9a913dfb 2051
55a914bc
JL		 2052 while (*s != ',' && *s != ' ' && *s != '\t')
2053 s += 1;
2054 c = *s;
2055 *s = 0x00;
2056 if (strcmp (name, "=") == 0)
2057 cmpltr = 1;
2058 else if (strcmp (name, "<") == 0)
2059 cmpltr = 2;
2060 else if (strcmp (name, "<=") == 0)
2061 cmpltr = 3;
2062 else if (strcasecmp (name, "<<") == 0)
2063 cmpltr = 4;
2064 else if (strcasecmp (name, "<<=") == 0)
2065 cmpltr = 5;
2066 else if (strcasecmp (name, "sv") == 0)
2067 cmpltr = 6;
2068 else if (strcasecmp (name, "od") == 0)
2069 cmpltr = 7;
2070 else if (strcasecmp (name, "tr") == 0)
2071 {
2072 cmpltr = 0;
2073 flag = 1;
2074 }
2075 else if (strcmp (name, "<>") == 0)
2076 {
2077 cmpltr = 1;
2078 flag = 1;
2079 }
2080 else if (strcmp (name, ">=") == 0)
2081 {
2082 cmpltr = 2;
2083 flag = 1;
2084 }
2085 else if (strcmp (name, ">") == 0)
2086 {
2087 cmpltr = 3;
2088 flag = 1;
2089 }
2090 else if (strcasecmp (name, ">>=") == 0)
2091 {
2092 cmpltr = 4;
2093 flag = 1;
2094 }
2095 else if (strcasecmp (name, ">>") == 0)
2096 {
2097 cmpltr = 5;
2098 flag = 1;
2099 }
2100 else if (strcasecmp (name, "nsv") == 0)
2101 {
2102 cmpltr = 6;
2103 flag = 1;
2104 }
2105 else if (strcasecmp (name, "ev") == 0)
2106 {
2107 cmpltr = 7;
2108 flag = 1;
2109 }
9a913dfb
JL		 2110 /* ",*" is a valid condition. */
2111 else if (*args != 'S')
55a914bc
JL		 2112 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2113 name);
2114 *s = c;
2115 }
2116 opcode |= cmpltr << 13;
2117 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2118
55a914bc
JL		 2119 /* Handle a non-negated compare condition. */
2120 case 't':
2121 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2122 if (cmpltr < 0)
2123 {
2124 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2125 cmpltr = 0;
2126 }
2127 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
9a913dfb
JL		 2128
2129 /* Handle a negated compare condition. */
2130 case 'T':
2131 abort ();
2132
2133 /* Handle a 64 bit non-negated compare condition. */
2134 case 'r':
2135 abort ();
2136
2137 /* Handle a 64 bit negated compare condition. */
2138 case 'R':
2139 abort ();
2140
2141 /* Handle a 64 bit cmpib condition. */
2142 case 'Q':
2143 abort ();
55a914bc
JL		 2144
2145 /* Handle a negated or non-negated compare/subtract
2146 condition. */
2147 case 'n':
2148 save_s = s;
2149 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2150 if (cmpltr < 0)
2151 {
2152 s = save_s;
2153 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
2154 if (cmpltr < 0)
2155 {
2156 as_bad (_("Invalid Compare/Subtract Condition."));
2157 cmpltr = 0;
2158 }
2159 else
2160 {
2161 /* Negated condition requires an opcode change. */
2162 opcode |= 1 << 27;
2163 }
2164 }
2165
2166 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2167
2168 /* Handle a logical instruction condition. */
9a913dfb 2169 case 'L':
55a914bc
JL		 2170 case 'l':
2171 cmpltr = 0;
2172 flag = 0;
2173 if (*s == ',')
2174 {
2175 s++;
9a913dfb
JL		 2176
2177 /* 64 bit conditions. */
2178 if (*args == 'L')
2179 {
2180 if (*s == '*')
2181 s++;
2182 else
2183 break;
2184 }
17d9105c
JL		 2185 else if (*s == '*')
2186 break;
55a914bc 2187 name = s;
9a913dfb 2188
55a914bc
JL		 2189 while (*s != ',' && *s != ' ' && *s != '\t')
2190 s += 1;
2191 c = *s;
2192 *s = 0x00;
2193
2194
2195 if (strcmp (name, "=") == 0)
2196 cmpltr = 1;
2197 else if (strcmp (name, "<") == 0)
2198 cmpltr = 2;
2199 else if (strcmp (name, "<=") == 0)
2200 cmpltr = 3;
2201 else if (strcasecmp (name, "od") == 0)
2202 cmpltr = 7;
2203 else if (strcasecmp (name, "tr") == 0)
2204 {
2205 cmpltr = 0;
2206 flag = 1;
2207 }
2208 else if (strcmp (name, "<>") == 0)
2209 {
2210 cmpltr = 1;
2211 flag = 1;
2212 }
2213 else if (strcmp (name, ">=") == 0)
2214 {
2215 cmpltr = 2;
2216 flag = 1;
2217 }
2218 else if (strcmp (name, ">") == 0)
2219 {
2220 cmpltr = 3;
2221 flag = 1;
2222 }
2223 else if (strcasecmp (name, "ev") == 0)
2224 {
2225 cmpltr = 7;
2226 flag = 1;
2227 }
9a913dfb
JL		 2228 /* ",*" is a valid condition. */
2229 else if (*args != 'L')
55a914bc
JL		 2230 as_bad (_("Invalid Logical Instruction Condition."));
2231 *s = c;
2232 }
2233 opcode |= cmpltr << 13;
2234 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
2235
2236 /* Handle a shift/extract/deposit condition. */
9a913dfb 2237 case 'X':
55a914bc
JL		 2238 case 'x':
2239 case 'y':
2240 cmpltr = 0;
2241 if (*s == ',')
2242 {
2243 save_s = s++;
2244
9a913dfb
JL		 2245 /* 64 bit conditions. */
2246 if (*args == 'X')
2247 {
2248 if (*s == '*')
2249 s++;
2250 else
2251 break;
2252 }
17d9105c
JL		 2253 else if (*s == '*')
2254 break;
55a914bc 2255 name = s;
9a913dfb 2256
55a914bc
JL		 2257 while (*s != ',' && *s != ' ' && *s != '\t')
2258 s += 1;
2259 c = *s;
2260 *s = 0x00;
2261 if (strcmp (name, "=") == 0)
2262 cmpltr = 1;
2263 else if (strcmp (name, "<") == 0)
2264 cmpltr = 2;
2265 else if (strcasecmp (name, "od") == 0)
2266 cmpltr = 3;
2267 else if (strcasecmp (name, "tr") == 0)
2268 cmpltr = 4;
2269 else if (strcmp (name, "<>") == 0)
2270 cmpltr = 5;
2271 else if (strcmp (name, ">=") == 0)
2272 cmpltr = 6;
2273 else if (strcasecmp (name, "ev") == 0)
2274 cmpltr = 7;
2275 /* Handle movb,n. Put things back the way they were.
2276 This includes moving s back to where it started. */
2277 else if (strcasecmp (name, "n") == 0 && *args == 'y')
2278 {
2279 *s = c;
2280 s = save_s;
2281 continue;
2282 }
9a913dfb
JL		 2283 /* ",*" is a valid condition. */
2284 else if (*args != 'X')
55a914bc
JL		 2285 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2286 *s = c;
2287 }
2288 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
252b5132 2289
55a914bc 2290 /* Handle a unit instruction condition. */
9a913dfb
JL		 2291 case 'U':
2292 case 'u':
55a914bc
JL		 2293 cmpltr = 0;
2294 flag = 0;
2295 if (*s == ',')
2296 {
2297 s++;
2298
9a913dfb
JL		 2299 /* 64 bit conditions. */
2300 if (*args == 'U')
2301 {
2302 if (*s == '*')
2303 s++;
2304 else
2305 break;
2306 }
17d9105c
JL		 2307 else if (*s == '*')
2308 break;
9a913dfb 2309
55a914bc
JL		 2310 if (strncasecmp (s, "sbz", 3) == 0)
2311 {
2312 cmpltr = 2;
2313 s += 3;
2314 }
2315 else if (strncasecmp (s, "shz", 3) == 0)
2316 {
2317 cmpltr = 3;
2318 s += 3;
2319 }
2320 else if (strncasecmp (s, "sdc", 3) == 0)
2321 {
2322 cmpltr = 4;
2323 s += 3;
2324 }
2325 else if (strncasecmp (s, "sbc", 3) == 0)
2326 {
2327 cmpltr = 6;
2328 s += 3;
2329 }
2330 else if (strncasecmp (s, "shc", 3) == 0)
2331 {
2332 cmpltr = 7;
2333 s += 3;
2334 }
2335 else if (strncasecmp (s, "tr", 2) == 0)
2336 {
2337 cmpltr = 0;
2338 flag = 1;
2339 s += 2;
2340 }
2341 else if (strncasecmp (s, "nbz", 3) == 0)
2342 {
2343 cmpltr = 2;
2344 flag = 1;
2345 s += 3;
2346 }
2347 else if (strncasecmp (s, "nhz", 3) == 0)
2348 {
2349 cmpltr = 3;
2350 flag = 1;
2351 s += 3;
2352 }
2353 else if (strncasecmp (s, "ndc", 3) == 0)
2354 {
2355 cmpltr = 4;
2356 flag = 1;
2357 s += 3;
2358 }
2359 else if (strncasecmp (s, "nbc", 3) == 0)
2360 {
2361 cmpltr = 6;
2362 flag = 1;
2363 s += 3;
2364 }
2365 else if (strncasecmp (s, "nhc", 3) == 0)
2366 {
2367 cmpltr = 7;
2368 flag = 1;
2369 s += 3;
2370 }
9a913dfb
JL		 2371 /* ",*" is a valid condition. */
2372 else if (*args != 'U')
55a914bc
JL		 2373 as_bad (_("Invalid Unit Instruction Condition."));
2374 }
2375 opcode |= cmpltr << 13;
2376 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2377
55a914bc
JL		 2378 default:
2379 abort ();
2380 }
0741736b 2381 break;
55a914bc 2382 }
252b5132 2383
252b5132
RH		 2384 /* Handle a nullification completer for branch instructions. */
2385 case 'n':
2386 nullif = pa_parse_nullif (&s);
2387 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
2388
2389 /* Handle a nullification completer for copr and spop insns. */
2390 case 'N':
2391 nullif = pa_parse_nullif (&s);
2392 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2393
2394
2395 /* Handle a 11 bit immediate at 31. */
2396 case 'i':
2397 the_insn.field_selector = pa_chk_field_selector (&s);
2398 get_expression (s);
2399 s = expr_end;
2400 if (the_insn.exp.X_op == O_constant)
2401 {
2402 num = evaluate_absolute (&the_insn);
2403 CHECK_FIELD (num, 1023, -1024, 0);
2404 low_sign_unext (num, 11, &num);
2405 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2406 }
2407 else
2408 {
2409 if (is_DP_relative (the_insn.exp))
2410 the_insn.reloc = R_HPPA_GOTOFF;
2411 else if (is_PC_relative (the_insn.exp))
2412 the_insn.reloc = R_HPPA_PCREL_CALL;
2413 else
2414 the_insn.reloc = R_HPPA;
2415 the_insn.format = 11;
2416 continue;
2417 }
2418
2419
2420 /* Handle a 14 bit immediate at 31. */
2421 case 'j':
2422 the_insn.field_selector = pa_chk_field_selector (&s);
2423 get_expression (s);
2424 s = expr_end;
2425 if (the_insn.exp.X_op == O_constant)
2426 {
2427 num = evaluate_absolute (&the_insn);
2428 CHECK_FIELD (num, 8191, -8192, 0);
2429 low_sign_unext (num, 14, &num);
2430 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2431 }
2432 else
2433 {
2434 if (is_DP_relative (the_insn.exp))
2435 the_insn.reloc = R_HPPA_GOTOFF;
2436 else if (is_PC_relative (the_insn.exp))
2437 the_insn.reloc = R_HPPA_PCREL_CALL;
2438 else
2439 the_insn.reloc = R_HPPA;
2440 the_insn.format = 14;
2441 continue;
2442 }
2443
2444 /* Handle a 21 bit immediate at 31. */
2445 case 'k':
2446 the_insn.field_selector = pa_chk_field_selector (&s);
2447 get_expression (s);
2448 s = expr_end;
2449 if (the_insn.exp.X_op == O_constant)
2450 {
2451 num = evaluate_absolute (&the_insn);
2452 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
2453 dis_assemble_21 (num, &num);
2454 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2455 }
2456 else
2457 {
2458 if (is_DP_relative (the_insn.exp))
2459 the_insn.reloc = R_HPPA_GOTOFF;
2460 else if (is_PC_relative (the_insn.exp))
2461 the_insn.reloc = R_HPPA_PCREL_CALL;
2462 else
2463 the_insn.reloc = R_HPPA;
2464 the_insn.format = 21;
2465 continue;
2466 }
2467
2468 /* Handle a 12 bit branch displacement. */
2469 case 'w':
2470 the_insn.field_selector = pa_chk_field_selector (&s);
2471 get_expression (s);
2472 s = expr_end;
2473 the_insn.pcrel = 1;
2474 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
2475 {
2476 unsigned int w1, w, result;
2477
2478 num = evaluate_absolute (&the_insn);
2479 if (num % 4)
2480 {
2481 as_bad (_("Branch to unaligned address"));
2482 break;
2483 }
2484 CHECK_FIELD (num, 8199, -8184, 0);
2485 sign_unext ((num - 8) >> 2, 12, &result);
2486 dis_assemble_12 (result, &w1, &w);
2487 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
2488 }
2489 else
2490 {
2491 the_insn.reloc = R_HPPA_PCREL_CALL;
2492 the_insn.format = 12;
2493 the_insn.arg_reloc = last_call_desc.arg_reloc;
2494 memset (&last_call_desc, 0, sizeof (struct call_desc));
2495 s = expr_end;
2496 continue;
2497 }
2498
2499 /* Handle a 17 bit branch displacement. */
2500 case 'W':
2501 the_insn.field_selector = pa_chk_field_selector (&s);
2502 get_expression (s);
2503 s = expr_end;
2504 the_insn.pcrel = 1;
2505 if (!the_insn.exp.X_add_symbol
2506 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2507 "L$0\001"))
2508 {
2509 unsigned int w2, w1, w, result;
2510
2511 num = evaluate_absolute (&the_insn);
2512 if (num % 4)
2513 {
2514 as_bad (_("Branch to unaligned address"));
2515 break;
2516 }
2517 CHECK_FIELD (num, 262143, -262144, 0);
2518
2519 if (the_insn.exp.X_add_symbol)
2520 num -= 8;
2521
2522 sign_unext (num >> 2, 17, &result);
2523 dis_assemble_17 (result, &w1, &w2, &w);
2524 INSERT_FIELD_AND_CONTINUE (opcode,
2525 ((w2 << 2) | (w1 << 16) | w), 0);
2526 }
2527 else
2528 {
2529 the_insn.reloc = R_HPPA_PCREL_CALL;
2530 the_insn.format = 17;
2531 the_insn.arg_reloc = last_call_desc.arg_reloc;
2532 memset (&last_call_desc, 0, sizeof (struct call_desc));
2533 continue;
2534 }
2535
2536 /* Handle an absolute 17 bit branch target. */
2537 case 'z':
2538 the_insn.field_selector = pa_chk_field_selector (&s);
2539 get_expression (s);
2540 s = expr_end;
2541 the_insn.pcrel = 0;
2542 if (!the_insn.exp.X_add_symbol
2543 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2544 "L$0\001"))
2545 {
2546 unsigned int w2, w1, w, result;
2547
2548 num = evaluate_absolute (&the_insn);
2549 if (num % 4)
2550 {
2551 as_bad (_("Branch to unaligned address"));
2552 break;
2553 }
2554 CHECK_FIELD (num, 262143, -262144, 0);
2555
2556 if (the_insn.exp.X_add_symbol)
2557 num -= 8;
2558
2559 sign_unext (num >> 2, 17, &result);
2560 dis_assemble_17 (result, &w1, &w2, &w);
2561 INSERT_FIELD_AND_CONTINUE (opcode,
2562 ((w2 << 2) | (w1 << 16) | w), 0);
2563 }
2564 else
2565 {
2566 the_insn.reloc = R_HPPA_ABS_CALL;
2567 the_insn.format = 17;
2568 the_insn.arg_reloc = last_call_desc.arg_reloc;
2569 memset (&last_call_desc, 0, sizeof (struct call_desc));
2570 continue;
2571 }
2572
a97685e9
JL		 2573 /* Handle a 2 bit shift count at 25. */
2574 case '.':
2575 num = pa_get_absolute_expression (&the_insn, &s);
2576 s = expr_end;
2577 CHECK_FIELD (num, 3, 1, 0);
2578 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2579
413c94ba
JL		 2580 /* Handle a 4 bit shift count at 25. */
2581 case '*':
2582 num = pa_get_absolute_expression (&the_insn, &s);
2583 s = expr_end;
2584 CHECK_FIELD (num, 15, 0, 0);
2585 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2586
252b5132
RH		 2587 /* Handle a 5 bit shift count at 26. */
2588 case 'p':
2589 num = pa_get_absolute_expression (&the_insn, &s);
2590 s = expr_end;
2591 CHECK_FIELD (num, 31, 0, 0);
2592 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
2593
a97685e9
JL		 2594 /* Handle a 6 bit shift count at 20,22:26. */
2595 case '~':
2596 num = pa_get_absolute_expression (&the_insn, &s);
2597 s = expr_end;
2598 CHECK_FIELD (num, 63, 0, 0);
2599 num = 63 - num;
2600 opcode |= (num & 0x20) << 6;
2601 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
2602
252b5132
RH		 2603 /* Handle a 5 bit bit position at 26. */
2604 case 'P':
2605 num = pa_get_absolute_expression (&the_insn, &s);
2606 s = expr_end;
2607 CHECK_FIELD (num, 31, 0, 0);
2608 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
2609
2610 /* Handle a 5 bit immediate at 10. */
2611 case 'Q':
2612
2613 num = pa_get_absolute_expression (&the_insn, &s);
2614 if (the_insn.exp.X_op != O_constant)
2615 break;
2616 s = expr_end;
2617 CHECK_FIELD (num, 31, 0, 0);
2618 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
2619
a97685e9
JL		 2620 /* Handle a 9 bit immediate at 28. */
2621 case '$':
2622 num = pa_get_absolute_expression (&the_insn, &s);
2623 s = expr_end;
2624 CHECK_FIELD (num, 511, 1, 0);
2625 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
2626
252b5132
RH		 2627 /* Handle a 13 bit immediate at 18. */
2628 case 'A':
2629 num = pa_get_absolute_expression (&the_insn, &s);
2630 s = expr_end;
2631 CHECK_FIELD (num, 8191, 0, 0);
2632 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
2633
2634 /* Handle a 26 bit immediate at 31. */
2635 case 'D':
2636 num = pa_get_absolute_expression (&the_insn, &s);
2637 s = expr_end;
2638 CHECK_FIELD (num, 671108864, 0, 0);
2639 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2640
2641 /* Handle a 3 bit SFU identifier at 25. */
2642 case 'f':
2643 if (*s++ != ',')
2644 as_bad (_("Invalid SFU identifier"));
2645 num = pa_get_absolute_expression (&the_insn, &s);
2646 s = expr_end;
2647 CHECK_FIELD (num, 7, 0, 0);
2648 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2649
2650 /* Handle a 20 bit SOP field for spop0. */
2651 case 'O':
2652 num = pa_get_absolute_expression (&the_insn, &s);
2653 s = expr_end;
2654 CHECK_FIELD (num, 1048575, 0, 0);
2655 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
2656 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2657
2658 /* Handle a 15bit SOP field for spop1. */
2659 case 'o':
2660 num = pa_get_absolute_expression (&the_insn, &s);
2661 s = expr_end;
2662 CHECK_FIELD (num, 32767, 0, 0);
2663 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
2664
2665 /* Handle a 10bit SOP field for spop3. */
2666 case '0':
2667 num = pa_get_absolute_expression (&the_insn, &s);
2668 s = expr_end;
2669 CHECK_FIELD (num, 1023, 0, 0);
2670 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
2671 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2672
2673 /* Handle a 15 bit SOP field for spop2. */
2674 case '1':
2675 num = pa_get_absolute_expression (&the_insn, &s);
2676 s = expr_end;
2677 CHECK_FIELD (num, 32767, 0, 0);
2678 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
2679 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2680
2681 /* Handle a 3-bit co-processor ID field. */
2682 case 'u':
2683 if (*s++ != ',')
2684 as_bad (_("Invalid COPR identifier"));
2685 num = pa_get_absolute_expression (&the_insn, &s);
2686 s = expr_end;
2687 CHECK_FIELD (num, 7, 0, 0);
2688 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2689
2690 /* Handle a 22bit SOP field for copr. */
2691 case '2':
2692 num = pa_get_absolute_expression (&the_insn, &s);
2693 s = expr_end;
2694 CHECK_FIELD (num, 4194303, 0, 0);
2695 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
2696 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2697
2698
2699 /* Handle a source FP operand format completer. */
2700 case 'F':
2701 flag = pa_parse_fp_format (&s);
2702 the_insn.fpof1 = flag;
2703 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2704
2705 /* Handle a destination FP operand format completer. */
2706 case 'G':
2707 /* pa_parse_format needs the ',' prefix. */
2708 s--;
2709 flag = pa_parse_fp_format (&s);
2710 the_insn.fpof2 = flag;
2711 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
2712
9ecc05f0
JL		 2713 /* Handle a source FP operand format completer at 20. */
2714 case 'I':
2715 flag = pa_parse_fp_format (&s);
2716 the_insn.fpof1 = flag;
2717 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2718
252b5132
RH		 2719 /* Handle L/R register halves like 't'. */
2720 case 'v':
2721 {
2722 struct pa_11_fp_reg_struct result;
2723
2724 pa_parse_number (&s, &result);
2725 CHECK_FIELD (result.number_part, 31, 0, 0);
2726 opcode |= result.number_part;
2727
2728 /* 0x30 opcodes are FP arithmetic operation opcodes
2729 and need to be turned into 0x38 opcodes. This
2730 is not necessary for loads/stores. */
2731 if (need_pa11_opcode (&the_insn, &result)
2732 && ((opcode & 0xfc000000) == 0x30000000))
2733 opcode |= 1 << 27;
2734
2735 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
2736 }
2737
2738 /* Handle L/R register halves like 'b'. */
2739 case 'E':
2740 {
2741 struct pa_11_fp_reg_struct result;
2742
2743 pa_parse_number (&s, &result);
2744 CHECK_FIELD (result.number_part, 31, 0, 0);
2745 opcode |= result.number_part << 21;
2746 if (need_pa11_opcode (&the_insn, &result))
2747 {
2748 opcode |= (result.l_r_select & 1) << 7;
2749 opcode |= 1 << 27;
2750 }
2751 continue;
2752 }
2753
b53fcc20
JL		 2754 /* Float operand 1 similar to 'b' but with l/r registers. */
2755 case 'J':
2756 {
2757 struct pa_11_fp_reg_struct result;
2758
2759 pa_parse_number (&s, &result);
2760 CHECK_FIELD (result.number_part, 31, 0, 0);
2761 opcode |= result.number_part << 21;
2762 opcode |= (result.l_r_select & 1) << 7;
2763 continue;
2764 }
2765
252b5132
RH		 2766 /* Handle L/R register halves like 'b'. */
2767 case '3':
2768 {
2769 struct pa_11_fp_reg_struct result;
2770 int regnum;
2771
2772 pa_parse_number (&s, &result);
2773 CHECK_FIELD (result.number_part, 31, 0, 0);
2774 opcode |= (result.number_part & 0x1c) << 11;
2775 opcode |= (result.number_part & 0x3) << 9;
2776 opcode |= (result.l_r_select & 1) << 8;
2777 continue;
2778 }
2779
2780 /* Handle L/R register halves like 'x'. */
2781 case 'e':
2782 {
2783 struct pa_11_fp_reg_struct result;
2784
2785 pa_parse_number (&s, &result);
2786 CHECK_FIELD (result.number_part, 31, 0, 0);
2787 opcode |= (result.number_part & 0x1f) << 16;
2788 if (need_pa11_opcode (&the_insn, &result))
2789 {
2790 opcode |= (result.l_r_select & 1) << 1;
2791 }
2792 continue;
2793 }
2794
2795 /* Handle L/R register halves like 'x'. */
2796 case 'X':
2797 {
2798 struct pa_11_fp_reg_struct result;
2799
2800 pa_parse_number (&s, &result);
2801 CHECK_FIELD (result.number_part, 31, 0, 0);
2802 opcode |= (result.number_part & 0x1f) << 16;
2803 if (need_pa11_opcode (&the_insn, &result))
2804 {
2805 opcode |= (result.l_r_select & 1) << 12;
2806 opcode |= 1 << 27;
2807 }
2808 continue;
2809 }
2810
b53fcc20
JL		 2811 /* Float operand 2, like 'x' but with l/r register halves. */
2812 case 'K':
2813 {
2814 struct pa_11_fp_reg_struct result;
2815
2816 pa_parse_number (&s, &result);
2817 CHECK_FIELD (result.number_part, 31, 0, 0);
2818 opcode |= (result.number_part & 0x1f) << 16;
2819 opcode |= (result.l_r_select & 1) << 12;
2820 continue;
2821 }
2822
252b5132
RH		 2823 /* Handle a 5 bit register field at 10. */
2824 case '4':
2825 {
2826 struct pa_11_fp_reg_struct result;
2827
2828 pa_parse_number (&s, &result);
2829 CHECK_FIELD (result.number_part, 31, 0, 0);
2830 if (the_insn.fpof1 == SGL)
2831 {
2832 if (result.number_part < 16)
2833 {
2834 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2835 break;
2836 }
2837
2838 result.number_part &= 0xF;
2839 result.number_part |= (result.l_r_select & 1) << 4;
2840 }
2841 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
2842 }
2843
2844 /* Handle a 5 bit register field at 15. */
2845 case '6':
2846 {
2847 struct pa_11_fp_reg_struct result;
2848
2849 pa_parse_number (&s, &result);
2850 CHECK_FIELD (result.number_part, 31, 0, 0);
2851 if (the_insn.fpof1 == SGL)
2852 {
2853 if (result.number_part < 16)
2854 {
2855 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2856 break;
2857 }
2858 result.number_part &= 0xF;
2859 result.number_part |= (result.l_r_select & 1) << 4;
2860 }
2861 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
2862 }
2863
2864 /* Handle a 5 bit register field at 31. */
2865 case '7':
2866 {
2867 struct pa_11_fp_reg_struct result;
2868
2869 pa_parse_number (&s, &result);
2870 CHECK_FIELD (result.number_part, 31, 0, 0);
2871 if (the_insn.fpof1 == SGL)
2872 {
2873 if (result.number_part < 16)
2874 {
2875 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2876 break;
2877 }
2878 result.number_part &= 0xF;
2879 result.number_part |= (result.l_r_select & 1) << 4;
2880 }
2881 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 0);
2882 }
2883
2884 /* Handle a 5 bit register field at 20. */
2885 case '8':
2886 {
2887 struct pa_11_fp_reg_struct result;
2888
2889 pa_parse_number (&s, &result);
2890 CHECK_FIELD (result.number_part, 31, 0, 0);
2891 if (the_insn.fpof1 == SGL)
2892 {
2893 if (result.number_part < 16)
2894 {
2895 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2896 break;
2897 }
2898 result.number_part &= 0xF;
2899 result.number_part |= (result.l_r_select & 1) << 4;
2900 }
2901 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
2902 }
2903
2904 /* Handle a 5 bit register field at 25. */
2905 case '9':
2906 {
2907 struct pa_11_fp_reg_struct result;
2908
2909 pa_parse_number (&s, &result);
2910 CHECK_FIELD (result.number_part, 31, 0, 0);
2911 if (the_insn.fpof1 == SGL)
2912 {
2913 if (result.number_part < 16)
2914 {
2915 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
2916 break;
2917 }
2918 result.number_part &= 0xF;
2919 result.number_part |= (result.l_r_select & 1) << 4;
2920 }
2921 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
2922 }
2923
2924 /* Handle a floating point operand format at 26.
2925 Only allows single and double precision. */
2926 case 'H':
2927 flag = pa_parse_fp_format (&s);
2928 switch (flag)
2929 {
2930 case SGL:
2931 opcode |= 0x20;
2932 case DBL:
2933 the_insn.fpof1 = flag;
2934 continue;
2935
2936 case QUAD:
2937 case ILLEGAL_FMT:
2938 default:
2939 as_bad (_("Invalid Floating Point Operand Format."));
2940 }
2941 break;
2942
2943 default:
2944 abort ();
2945 }
2946 break;
2947 }
2948
2949 failed:
2950 /* Check if the args matched. */
2951 if (match == FALSE)
2952 {
2953 if (&insn[1] - pa_opcodes < (int) NUMOPCODES
2954 && !strcmp (insn->name, insn[1].name))
2955 {
2956 ++insn;
2957 s = argstart;
2958 continue;
2959 }
2960 else
2961 {
2962 as_bad (_("Invalid operands %s"), error_message);
2963 return;
2964 }
2965 }
2966 break;
2967 }
2968
2969 the_insn.opcode = opcode;
2970}
2971
2972/* Turn a string in input_line_pointer into a floating point constant of type
2973 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
2974 emitted is stored in *sizeP . An error message or NULL is returned. */
2975
2976#define MAX_LITTLENUMS 6
2977
2978char *
2979md_atof (type, litP, sizeP)
2980 char type;
2981 char *litP;
2982 int *sizeP;
2983{
2984 int prec;
2985 LITTLENUM_TYPE words[MAX_LITTLENUMS];
2986 LITTLENUM_TYPE *wordP;
2987 char *t;
2988
2989 switch (type)
2990 {
2991
2992 case 'f':
2993 case 'F':
2994 case 's':
2995 case 'S':
2996 prec = 2;
2997 break;
2998
2999 case 'd':
3000 case 'D':
3001 case 'r':
3002 case 'R':
3003 prec = 4;
3004 break;
3005
3006 case 'x':
3007 case 'X':
3008 prec = 6;
3009 break;
3010
3011 case 'p':
3012 case 'P':
3013 prec = 6;
3014 break;
3015
3016 default:
3017 *sizeP = 0;
3018 return _("Bad call to MD_ATOF()");
3019 }
3020 t = atof_ieee (input_line_pointer, type, words);
3021 if (t)
3022 input_line_pointer = t;
3023 *sizeP = prec * sizeof (LITTLENUM_TYPE);
3024 for (wordP = words; prec--;)
3025 {
3026 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
3027 litP += sizeof (LITTLENUM_TYPE);
3028 }
3029 return NULL;
3030}
3031
3032/* Write out big-endian. */
3033
3034void
3035md_number_to_chars (buf, val, n)
3036 char *buf;
3037 valueT val;
3038 int n;
3039{
3040 number_to_chars_bigendian (buf, val, n);
3041}
3042
3043/* Translate internal representation of relocation info to BFD target
3044 format. */
3045
3046arelent **
3047tc_gen_reloc (section, fixp)
3048 asection *section;
3049 fixS *fixp;
3050{
3051 arelent *reloc;
3052 struct hppa_fix_struct *hppa_fixp;
3053 bfd_reloc_code_real_type code;
3054 static arelent *no_relocs = NULL;
3055 arelent **relocs;
3056 bfd_reloc_code_real_type **codes;
3057 int n_relocs;
3058 int i;
3059
3060 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
3061 if (fixp->fx_addsy == 0)
3062 return &no_relocs;
3063 assert (hppa_fixp != 0);
3064 assert (section != 0);
3065
3066 reloc = (arelent *) xmalloc (sizeof (arelent));
3067
a0f75b47
ILT		 3068 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3069 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3070 codes = (bfd_reloc_code_real_type **) hppa_gen_reloc_type (stdoutput,
3071 fixp->fx_r_type,
3072 hppa_fixp->fx_r_format,
3073 hppa_fixp->fx_r_field,
3074 fixp->fx_subsy != NULL,
a0f75b47 3075 symbol_get_bfdsym (fixp->fx_addsy));
252b5132
RH		 3076
3077 if (codes == NULL)
3078 abort ();
3079
3080 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
3081 ;
3082
3083 relocs = (arelent **) xmalloc (sizeof (arelent *) * n_relocs + 1);
3084 reloc = (arelent *) xmalloc (sizeof (arelent) * n_relocs);
3085 for (i = 0; i < n_relocs; i++)
3086 relocs[i] = &reloc[i];
3087
3088 relocs[n_relocs] = NULL;
3089
3090#ifdef OBJ_ELF
3091 switch (fixp->fx_r_type)
3092 {
3093 default:
3094 assert (n_relocs == 1);
3095
3096 code = *codes[0];
3097
a0f75b47
ILT		 3098 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3099 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3100 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
3101 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
3102 reloc->addend = 0; /* default */
3103
3104 assert (reloc->howto && code == reloc->howto->type);
3105
3106 /* Now, do any processing that is dependent on the relocation type. */
3107 switch (code)
3108 {
3109 case R_PARISC_DLTREL21L:
3110 case R_PARISC_DLTREL14R:
3111 case R_PARISC_DLTREL14F:
3112 case R_PARISC_PLABEL32:
3113 case R_PARISC_PLABEL21L:
3114 case R_PARISC_PLABEL14R:
3115 /* For plabel relocations, the addend of the
3116 relocation should be either 0 (no static link) or 2
3117 (static link required).
3118
3119 FIXME: We always assume no static link!
3120
3121 We also slam a zero addend into the DLT relative relocs;
3122 it doesn't make a lot of sense to use any addend since
3123 it gets you a different (eg unknown) DLT entry. */
3124 reloc->addend = 0;
3125 break;
3126
3127 case R_PARISC_PCREL21L:
3128 case R_PARISC_PCREL17R:
3129 case R_PARISC_PCREL17F:
3130 case R_PARISC_PCREL17C:
3131 case R_PARISC_PCREL14R:
3132 case R_PARISC_PCREL14F:
3133 /* The constant is stored in the instruction. */
3134 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3135 break;
3136 default:
3137 reloc->addend = fixp->fx_offset;
3138 break;
3139 }
3140 break;
3141 }
3142#else /* OBJ_SOM */
3143
3144 /* Walk over reach relocation returned by the BFD backend. */
3145 for (i = 0; i < n_relocs; i++)
3146 {
3147 code = *codes[i];
3148
398e8c25
ILT		 3149 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3150 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3151 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
3152 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3153
3154 switch (code)
3155 {
3156 case R_COMP2:
3157 /* The only time we ever use a R_COMP2 fixup is for the difference
3158 of two symbols. With that in mind we fill in all four
3159 relocs now and break out of the loop. */
3160 assert (i == 1);
993142d5 3161 relocs[0]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3162 relocs[0]->howto = bfd_reloc_type_lookup (stdoutput, *codes[0]);
3163 relocs[0]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3164 relocs[0]->addend = 0;
993142d5
ILT		 3165 relocs[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3166 *relocs[1]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3167 relocs[1]->howto = bfd_reloc_type_lookup (stdoutput, *codes[1]);
3168 relocs[1]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3169 relocs[1]->addend = 0;
993142d5
ILT		 3170 relocs[2]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3171 *relocs[2]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);
252b5132
RH		 3172 relocs[2]->howto = bfd_reloc_type_lookup (stdoutput, *codes[2]);
3173 relocs[2]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3174 relocs[2]->addend = 0;
993142d5 3175 relocs[3]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3176 relocs[3]->howto = bfd_reloc_type_lookup (stdoutput, *codes[3]);
3177 relocs[3]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3178 relocs[3]->addend = 0;
993142d5 3179 relocs[4]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3180 relocs[4]->howto = bfd_reloc_type_lookup (stdoutput, *codes[4]);
3181 relocs[4]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3182 relocs[4]->addend = 0;
3183 goto done;
3184 case R_PCREL_CALL:
3185 case R_ABS_CALL:
3186 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3187 break;
3188
3189 case R_DLT_REL:
3190 case R_DATA_PLABEL:
3191 case R_CODE_PLABEL:
3192 /* For plabel relocations, the addend of the
3193 relocation should be either 0 (no static link) or 2
3194 (static link required).
3195
3196 FIXME: We always assume no static link!
3197
3198 We also slam a zero addend into the DLT relative relocs;
3199 it doesn't make a lot of sense to use any addend since
3200 it gets you a different (eg unknown) DLT entry. */
3201 relocs[i]->addend = 0;
3202 break;
3203
3204 case R_N_MODE:
3205 case R_S_MODE:
3206 case R_D_MODE:
3207 case R_R_MODE:
3208 case R_FSEL:
3209 case R_LSEL:
3210 case R_RSEL:
3211 case R_BEGIN_BRTAB:
3212 case R_END_BRTAB:
3213 case R_BEGIN_TRY:
3214 case R_N0SEL:
3215 case R_N1SEL:
3216 /* There is no symbol or addend associated with these fixups. */
993142d5
ILT		 3217 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3218 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
252b5132
RH		 3219 relocs[i]->addend = 0;
3220 break;
3221
3222 case R_END_TRY:
3223 case R_ENTRY:
3224 case R_EXIT:
3225 /* There is no symbol associated with these fixups. */
993142d5
ILT		 3226 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3227 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
252b5132
RH		 3228 relocs[i]->addend = fixp->fx_offset;
3229 break;
3230
3231 default:
3232 relocs[i]->addend = fixp->fx_offset;
3233 }
3234 }
3235
3236 done:
3237#endif
3238
3239 return relocs;
3240}
3241
3242/* Process any machine dependent frag types. */
3243
3244void
3245md_convert_frag (abfd, sec, fragP)
3246 register bfd *abfd;
3247 register asection *sec;
3248 register fragS *fragP;
3249{
3250 unsigned int address;
3251
3252 if (fragP->fr_type == rs_machine_dependent)
3253 {
3254 switch ((int) fragP->fr_subtype)
3255 {
3256 case 0:
3257 fragP->fr_type = rs_fill;
3258 know (fragP->fr_var == 1);
3259 know (fragP->fr_next);
3260 address = fragP->fr_address + fragP->fr_fix;
3261 if (address % fragP->fr_offset)
3262 {
3263 fragP->fr_offset =
3264 fragP->fr_next->fr_address
3265 - fragP->fr_address
3266 - fragP->fr_fix;
3267 }
3268 else
3269 fragP->fr_offset = 0;
3270 break;
3271 }
3272 }
3273}
3274
3275/* Round up a section size to the appropriate boundary. */
3276
3277valueT
3278md_section_align (segment, size)
3279 asection *segment;
3280 valueT size;
3281{
3282 int align = bfd_get_section_alignment (stdoutput, segment);
3283 int align2 = (1 << align) - 1;
3284
3285 return (size + align2) & ~align2;
3286}
3287
3288/* Return the approximate size of a frag before relaxation has occurred. */
3289int
3290md_estimate_size_before_relax (fragP, segment)
3291 register fragS *fragP;
3292 asection *segment;
3293{
3294 int size;
3295
3296 size = 0;
3297
3298 while ((fragP->fr_fix + size) % fragP->fr_offset)
3299 size++;
3300
3301 return size;
3302}
3303\f
3304CONST char *md_shortopts = "";
3305struct option md_longopts[] = {
3306 {NULL, no_argument, NULL, 0}
3307};
3308size_t md_longopts_size = sizeof(md_longopts);
3309
3310int
3311md_parse_option (c, arg)
3312 int c;
3313 char *arg;
3314{
3315 return 0;
3316}
3317
3318void
3319md_show_usage (stream)
3320 FILE *stream;
3321{
3322}
3323\f
3324/* We have no need to default values of symbols. */
3325
3326symbolS *
3327md_undefined_symbol (name)
3328 char *name;
3329{
3330 return 0;
3331}
3332
3333/* Apply a fixup to an instruction. */
3334
3335int
3336md_apply_fix (fixP, valp)
3337 fixS *fixP;
3338 valueT *valp;
3339{
3340 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
3341 struct hppa_fix_struct *hppa_fixP;
3342 long new_val, result = 0;
3343 unsigned int w1, w2, w, resulti;
3344
3345 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
3346 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3347 never be "applied" (they are just markers). Likewise for
3348 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3349#ifdef OBJ_SOM
3350 if (fixP->fx_r_type == R_HPPA_ENTRY
3351 || fixP->fx_r_type == R_HPPA_EXIT
3352 || fixP->fx_r_type == R_HPPA_BEGIN_BRTAB
3353 || fixP->fx_r_type == R_HPPA_END_BRTAB
3354 || fixP->fx_r_type == R_HPPA_BEGIN_TRY)
3355 return 1;
3356
3357 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3358 fixups are considered not adjustable, which in turn causes
3359 adjust_reloc_syms to not set fx_offset. Ugh. */
3360 if (fixP->fx_r_type == R_HPPA_END_TRY)
3361 {
3362 fixP->fx_offset = *valp;
3363 return 1;
3364 }
3365#endif
3366
3367 /* There should have been an HPPA specific fixup associated
3368 with the GAS fixup. */
3369 if (hppa_fixP)
3370 {
3371 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
3372 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
3373
3374 /* If there is a symbol associated with this fixup, then it's something
3375 which will need a SOM relocation (except for some PC-relative relocs).
3376 In such cases we should treat the "val" or "addend" as zero since it
3377 will be added in as needed from fx_offset in tc_gen_reloc. */
3378 if ((fixP->fx_addsy != NULL
3379 || fixP->fx_r_type == R_HPPA_NONE)
3380#ifdef OBJ_SOM
3381 && fmt != 32
3382#endif
3383 )
90700a53 3384 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
252b5132
RH		 3385#ifdef OBJ_SOM
3386 /* These field selectors imply that we do not want an addend. */
3387 else if (hppa_fixP->fx_r_field == e_psel
3388 || hppa_fixP->fx_r_field == e_rpsel
3389 || hppa_fixP->fx_r_field == e_lpsel
3390 || hppa_fixP->fx_r_field == e_tsel
3391 || hppa_fixP->fx_r_field == e_rtsel
3392 || hppa_fixP->fx_r_field == e_ltsel)
90700a53 3393 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
252b5132
RH		 3394 /* This is truely disgusting. The machine independent code blindly
3395 adds in the value of the symbol being relocated against. Damn! */
3396 else if (fmt == 32
3397 && fixP->fx_addsy != NULL
3398 && S_GET_SEGMENT (fixP->fx_addsy) != bfd_com_section_ptr)
3399 new_val = hppa_field_adjust (*valp - S_GET_VALUE (fixP->fx_addsy),
3400 0, hppa_fixP->fx_r_field);
3401#endif
3402 else
3403 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
3404
3405 /* Handle pc-relative exceptions from above. */
3406#define arg_reloc_stub_needed(CALLER, CALLEE) \
3407 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
90700a53 3408 if ((fmt == 12 || fmt == 17 || fmt == 22)
252b5132
RH		 3409 && fixP->fx_addsy
3410 && fixP->fx_pcrel
49863f82 3411#ifdef OBJ_SOM
252b5132 3412 && !arg_reloc_stub_needed ((long) ((obj_symbol_type *)
a0f75b47
ILT		 3413 symbol_get_bfdsym (fixP->fx_addsy))->tc_data.ap.hppa_arg_reloc,
3414 hppa_fixP->fx_arg_reloc)
49863f82 3415#endif
90700a53 3416 && (((int)(*valp) > -262144 && (int)(*valp) < 262143) && fmt != 22)
252b5132
RH		 3417 && S_GET_SEGMENT (fixP->fx_addsy) == hppa_fixP->segment
3418 && !(fixP->fx_subsy
3419 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
3420
3421 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
3422#undef arg_reloc_stub_needed
3423
3424 switch (fmt)
3425 {
3426 /* Handle all opcodes with the 'j' operand type. */
3427 case 14:
3428 CHECK_FIELD (new_val, 8191, -8192, 0);
3429
3430 /* Mask off 14 bits to be changed. */
3431 bfd_put_32 (stdoutput,
3432 bfd_get_32 (stdoutput, buf) & 0xffffc000,
3433 buf);
3434 low_sign_unext (new_val, 14, &resulti);
3435 result = resulti;
3436 break;
3437
3438 /* Handle all opcodes with the 'k' operand type. */
3439 case 21:
3440 CHECK_FIELD (new_val, 2097152, 0, 0);
3441
3442 /* Mask off 21 bits to be changed. */
3443 bfd_put_32 (stdoutput,
3444 bfd_get_32 (stdoutput, buf) & 0xffe00000,
3445 buf);
3446 dis_assemble_21 (new_val, &resulti);
3447 result = resulti;
3448 break;
3449
3450 /* Handle all the opcodes with the 'i' operand type. */
3451 case 11:
3452 CHECK_FIELD (new_val, 1023, -1023, 0);
3453
3454 /* Mask off 11 bits to be changed. */
3455 bfd_put_32 (stdoutput,
3456 bfd_get_32 (stdoutput, buf) & 0xffff800,
3457 buf);
3458 low_sign_unext (new_val, 11, &resulti);
3459 result = resulti;
3460 break;
3461
3462 /* Handle all the opcodes with the 'w' operand type. */
3463 case 12:
3464 CHECK_FIELD (new_val, 8199, -8184, 0);
3465
3466 /* Mask off 11 bits to be changed. */
3467 sign_unext ((new_val - 8) >> 2, 12, &resulti);
3468 bfd_put_32 (stdoutput,
3469 bfd_get_32 (stdoutput, buf) & 0xffffe002,
3470 buf);
3471
3472 dis_assemble_12 (resulti, &w1, &w);
3473 result = ((w1 << 2) | w);
3474 break;
3475
3476 /* Handle some of the opcodes with the 'W' operand type. */
3477 case 17:
3478 {
3479 int distance = *valp;
3480
3481 CHECK_FIELD (new_val, 262143, -262144, 0);
3482
3483 /* If this is an absolute branch (ie no link) with an out of
3484 range target, then we want to complain. */
3485 if (fixP->fx_r_type == R_HPPA_PCREL_CALL
3486 && (distance > 262143 || distance < -262144)
3487 && (bfd_get_32 (stdoutput, buf) & 0xffe00000) == 0xe8000000)
3488 CHECK_FIELD (distance, 262143, -262144, 0);
3489
3490 /* Mask off 17 bits to be changed. */
3491 bfd_put_32 (stdoutput,
3492 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
3493 buf);
3494 sign_unext ((new_val - 8) >> 2, 17, &resulti);
3495 dis_assemble_17 (resulti, &w1, &w2, &w);
3496 result = ((w2 << 2) | (w1 << 16) | w);
3497 break;
3498 }
3499
3500 case 32:
3501 result = 0;
3502 bfd_put_32 (stdoutput, new_val, buf);
3503 break;
3504
3505 default:
3506 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3507 return 0;
3508 }
3509
3510 /* Insert the relocation. */
3511 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
3512 return 1;
3513 }
3514 else
3515 {
3516 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3517 (unsigned int) fixP, fixP->fx_r_type);
3518 return 0;
3519 }
3520}
3521
3522/* Exactly what point is a PC-relative offset relative TO?
3523 On the PA, they're relative to the address of the offset. */
3524
3525long
3526md_pcrel_from (fixP)
3527 fixS *fixP;
3528{
3529 return fixP->fx_where + fixP->fx_frag->fr_address;
3530}
3531
3532/* Return nonzero if the input line pointer is at the end of
3533 a statement. */
3534
3535static int
3536is_end_of_statement ()
3537{
3538 return ((*input_line_pointer == '\n')
3539 || (*input_line_pointer == ';')
3540 || (*input_line_pointer == '!'));
3541}
3542
3543/* Read a number from S. The number might come in one of many forms,
3544 the most common will be a hex or decimal constant, but it could be
3545 a pre-defined register (Yuk!), or an absolute symbol.
3546
3547 Return a number or -1 for failure.
3548
3549 When parsing PA-89 FP register numbers RESULT will be
3550 the address of a structure to return information about
3551 L/R half of FP registers, store results there as appropriate.
3552
3553 pa_parse_number can not handle negative constants and will fail
3554 horribly if it is passed such a constant. */
3555
3556static int
3557pa_parse_number (s, result)
3558 char **s;
3559 struct pa_11_fp_reg_struct *result;
3560{
3561 int num;
3562 char *name;
3563 char c;
3564 symbolS *sym;
3565 int status;
3566 char *p = *s;
3567
3568 /* Skip whitespace before the number. */
3569 while (*p == ' ' || *p == '\t')
3570 p = p + 1;
3571
3572 /* Store info in RESULT if requested by caller. */
3573 if (result)
3574 {
3575 result->number_part = -1;
3576 result->l_r_select = -1;
3577 }
3578 num = -1;
3579
3580 if (isdigit (*p))
3581 {
3582 /* Looks like a number. */
3583 num = 0;
3584
3585 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
3586 {
3587 /* The number is specified in hex. */
3588 p += 2;
3589 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
3590 || ((*p >= 'A') && (*p <= 'F')))
3591 {
3592 if (isdigit (*p))
3593 num = num * 16 + *p - '0';
3594 else if (*p >= 'a' && *p <= 'f')
3595 num = num * 16 + *p - 'a' + 10;
3596 else
3597 num = num * 16 + *p - 'A' + 10;
3598 ++p;
3599 }
3600 }
3601 else
3602 {
3603 /* The number is specified in decimal. */
3604 while (isdigit (*p))
3605 {
3606 num = num * 10 + *p - '0';
3607 ++p;
3608 }
3609 }
3610
3611 /* Store info in RESULT if requested by the caller. */
3612 if (result)
3613 {
3614 result->number_part = num;
3615
3616 if (IS_R_SELECT (p))
3617 {
3618 result->l_r_select = 1;
3619 ++p;
3620 }
3621 else if (IS_L_SELECT (p))
3622 {
3623 result->l_r_select = 0;
3624 ++p;
3625 }
3626 else
3627 result->l_r_select = 0;
3628 }
3629 }
3630 else if (*p == '%')
3631 {
3632 /* The number might be a predefined register. */
3633 num = 0;
3634 name = p;
3635 p++;
3636 c = *p;
3637 /* Tege hack: Special case for general registers as the general
3638 code makes a binary search with case translation, and is VERY
3639 slow. */
3640 if (c == 'r')
3641 {
3642 p++;
3643 if (*p == 'e' && *(p + 1) == 't'
3644 && (*(p + 2) == '0' || *(p + 2) == '1'))
3645 {
3646 p += 2;
3647 num = *p - '0' + 28;
3648 p++;
3649 }
3650 else if (*p == 'p')
3651 {
3652 num = 2;
3653 p++;
3654 }
3655 else if (!isdigit (*p))
3656 {
3657 if (print_errors)
3658 as_bad (_("Undefined register: '%s'."), name);
3659 num = -1;
3660 }
3661 else
3662 {
3663 do
3664 num = num * 10 + *p++ - '0';
3665 while (isdigit (*p));
3666 }
3667 }
3668 else
3669 {
3670 /* Do a normal register search. */
3671 while (is_part_of_name (c))
3672 {
3673 p = p + 1;
3674 c = *p;
3675 }
3676 *p = 0;
3677 status = reg_name_search (name);
3678 if (status >= 0)
3679 num = status;
3680 else
3681 {
3682 if (print_errors)
3683 as_bad (_("Undefined register: '%s'."), name);
3684 num = -1;
3685 }
3686 *p = c;
3687 }
3688
3689 /* Store info in RESULT if requested by caller. */
3690 if (result)
3691 {
3692 result->number_part = num;
3693 if (IS_R_SELECT (p - 1))
3694 result->l_r_select = 1;
3695 else if (IS_L_SELECT (p - 1))
3696 result->l_r_select = 0;
3697 else
3698 result->l_r_select = 0;
3699 }
3700 }
3701 else
3702 {
3703 /* And finally, it could be a symbol in the absolute section which
3704 is effectively a constant. */
3705 num = 0;
3706 name = p;
3707 c = *p;
3708 while (is_part_of_name (c))
3709 {
3710 p = p + 1;
3711 c = *p;
3712 }
3713 *p = 0;
3714 if ((sym = symbol_find (name)) != NULL)
3715 {
3716 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
3717 num = S_GET_VALUE (sym);
3718 else
3719 {
3720 if (print_errors)
3721 as_bad (_("Non-absolute symbol: '%s'."), name);
3722 num = -1;
3723 }
3724 }
3725 else
3726 {
3727 /* There is where we'd come for an undefined symbol
3728 or for an empty string. For an empty string we
3729 will return zero. That's a concession made for
3730 compatability with the braindamaged HP assemblers. */
3731 if (*name == 0)
3732 num = 0;
3733 else
3734 {
3735 if (print_errors)
3736 as_bad (_("Undefined absolute constant: '%s'."), name);
3737 num = -1;
3738 }
3739 }
3740 *p = c;
3741
3742 /* Store info in RESULT if requested by caller. */
3743 if (result)
3744 {
3745 result->number_part = num;
3746 if (IS_R_SELECT (p - 1))
3747 result->l_r_select = 1;
3748 else if (IS_L_SELECT (p - 1))
3749 result->l_r_select = 0;
3750 else
3751 result->l_r_select = 0;
3752 }
3753 }
3754
3755 *s = p;
3756 return num;
3757}
3758
3759#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3760
3761/* Given NAME, find the register number associated with that name, return
3762 the integer value associated with the given name or -1 on failure. */
3763
3764static int
3765reg_name_search (name)
3766 char *name;
3767{
3768 int middle, low, high;
3769 int cmp;
3770
3771 low = 0;
3772 high = REG_NAME_CNT - 1;
3773
3774 do
3775 {
3776 middle = (low + high) / 2;
3777 cmp = strcasecmp (name, pre_defined_registers[middle].name);
3778 if (cmp < 0)
3779 high = middle - 1;
3780 else if (cmp > 0)
3781 low = middle + 1;
3782 else
3783 return pre_defined_registers[middle].value;
3784 }
3785 while (low <= high);
3786
3787 return -1;
3788}
3789
3790
3791/* Return nonzero if the given INSN and L/R information will require
3792 a new PA-1.1 opcode. */
3793
3794static int
3795need_pa11_opcode (insn, result)
3796 struct pa_it *insn;
3797 struct pa_11_fp_reg_struct *result;
3798{
3799 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
3800 {
3801 /* If this instruction is specific to a particular architecture,
3802 then set a new architecture. */
3803 if (bfd_get_mach (stdoutput) < pa11)
3804 {
3805 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, pa11))
3806 as_warn (_("could not update architecture and machine"));
3807 }
3808 return TRUE;
3809 }
3810 else
3811 return FALSE;
3812}
3813
3814/* Parse a condition for a fcmp instruction. Return the numerical
3815 code associated with the condition. */
3816
3817static int
3818pa_parse_fp_cmp_cond (s)
3819 char **s;
3820{
3821 int cond, i;
3822
3823 cond = 0;
3824
3825 for (i = 0; i < 32; i++)
3826 {
3827 if (strncasecmp (*s, fp_cond_map[i].string,
3828 strlen (fp_cond_map[i].string)) == 0)
3829 {
3830 cond = fp_cond_map[i].cond;
3831 *s += strlen (fp_cond_map[i].string);
3832 /* If not a complete match, back up the input string and
3833 report an error. */
3834 if (**s != ' ' && **s != '\t')
3835 {
3836 *s -= strlen (fp_cond_map[i].string);
3837 break;
3838 }
3839 while (**s == ' ' || **s == '\t')
3840 *s = *s + 1;
3841 return cond;
3842 }
3843 }
3844
3845 as_bad (_("Invalid FP Compare Condition: %s"), *s);
3846
3847 /* Advance over the bogus completer. */
3848 while (**s != ',' && **s != ' ' && **s != '\t')
3849 *s += 1;
3850
3851 return 0;
3852}
3853
3854
3855/* Parse an FP operand format completer returning the completer
3856 type. */
3857
3858static fp_operand_format
3859pa_parse_fp_format (s)
3860 char **s;
3861{
3862 int format;
3863
3864 format = SGL;
3865 if (**s == ',')
3866 {
3867 *s += 1;
3868 if (strncasecmp (*s, "sgl", 3) == 0)
3869 {
3870 format = SGL;
3871 *s += 4;
3872 }
3873 else if (strncasecmp (*s, "dbl", 3) == 0)
3874 {
3875 format = DBL;
3876 *s += 4;
3877 }
3878 else if (strncasecmp (*s, "quad", 4) == 0)
3879 {
3880 format = QUAD;
3881 *s += 5;
3882 }
3883 else
3884 {
3885 format = ILLEGAL_FMT;
3886 as_bad (_("Invalid FP Operand Format: %3s"), *s);
3887 }
3888 }
3889
3890 return format;
3891}
3892
3893/* Convert from a selector string into a selector type. */
3894
3895static int
3896pa_chk_field_selector (str)
3897 char **str;
3898{
3899 int middle, low, high;
3900 int cmp;
3901 char name[4];
3902
3903 /* Read past any whitespace. */
3904 /* FIXME: should we read past newlines and formfeeds??? */
3905 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
3906 *str = *str + 1;
3907
3908 if ((*str)[1] == '\'' || (*str)[1] == '%')
3909 name[0] = tolower ((*str)[0]),
3910 name[1] = 0;
3911 else if ((*str)[2] == '\'' || (*str)[2] == '%')
3912 name[0] = tolower ((*str)[0]),
3913 name[1] = tolower ((*str)[1]),
3914 name[2] = 0;
252b5132
RH		 3915 else if ((*str)[3] == '\'' || (*str)[3] == '%')
3916 name[0] = tolower ((*str)[0]),
3917 name[1] = tolower ((*str)[1]),
3918 name[2] = tolower ((*str)[2]),
3919 name[3] = 0;
252b5132
RH		 3920 else
3921 return e_fsel;
3922
3923 low = 0;
3924 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
3925
3926 do
3927 {
3928 middle = (low + high) / 2;
3929 cmp = strcmp (name, selector_table[middle].prefix);
3930 if (cmp < 0)
3931 high = middle - 1;
3932 else if (cmp > 0)
3933 low = middle + 1;
3934 else
3935 {
3936 *str += strlen (name) + 1;
3937#ifndef OBJ_SOM
3938 if (selector_table[middle].field_selector == e_nsel)
3939 return e_fsel;
3940#endif
3941 return selector_table[middle].field_selector;
3942 }
3943 }
3944 while (low <= high);
3945
3946 return e_fsel;
3947}
3948
3949/* Mark (via expr_end) the end of an expression (I think). FIXME. */
3950
3951static int
3952get_expression (str)
3953 char *str;
3954{
3955 char *save_in;
3956 asection *seg;
3957
3958 save_in = input_line_pointer;
3959 input_line_pointer = str;
3960 seg = expression (&the_insn.exp);
3961 if (!(seg == absolute_section
3962 || seg == undefined_section
3963 || SEG_NORMAL (seg)))
3964 {
3965 as_warn (_("Bad segment in expression."));
3966 expr_end = input_line_pointer;
3967 input_line_pointer = save_in;
3968 return 1;
3969 }
3970 expr_end = input_line_pointer;
3971 input_line_pointer = save_in;
3972 return 0;
3973}
3974
3975/* Mark (via expr_end) the end of an absolute expression. FIXME. */
3976static int
3977pa_get_absolute_expression (insn, strp)
3978 struct pa_it *insn;
3979 char **strp;
3980{
3981 char *save_in;
3982
3983 insn->field_selector = pa_chk_field_selector (strp);
3984 save_in = input_line_pointer;
3985 input_line_pointer = *strp;
3986 expression (&insn->exp);
3987 /* This is not perfect, but is a huge improvement over doing nothing.
3988
3989 The PA assembly syntax is ambigious in a variety of ways. Consider
3990 this string "4 %r5" Is that the number 4 followed by the register
3991 r5, or is that 4 MOD 5?
3992
3993 If we get a modulo expresion When looking for an absolute, we try
3994 again cutting off the input string at the first whitespace character. */
3995 if (insn->exp.X_op == O_modulus)
3996 {
3997 char *s, c;
3998 int retval;
3999
4000 input_line_pointer = *strp;
4001 s = *strp;
4002 while (*s != ',' && *s != ' ' && *s != '\t')
4003 s++;
4004
4005 c = *s;
4006 *s = 0;
4007
4008 retval = pa_get_absolute_expression (insn, strp);
4009
4010 input_line_pointer = save_in;
4011 *s = c;
4012 return evaluate_absolute (insn);
4013 }
4014 if (insn->exp.X_op != O_constant)
4015 {
4016 as_bad (_("Bad segment (should be absolute)."));
4017 expr_end = input_line_pointer;
4018 input_line_pointer = save_in;
4019 return 0;
4020 }
4021 expr_end = input_line_pointer;
4022 input_line_pointer = save_in;
4023 return evaluate_absolute (insn);
4024}
4025
4026/* Evaluate an absolute expression EXP which may be modified by
4027 the selector FIELD_SELECTOR. Return the value of the expression. */
4028static int
4029evaluate_absolute (insn)
4030 struct pa_it *insn;
4031{
4032 int value;
4033 expressionS exp;
4034 int field_selector = insn->field_selector;
4035
4036 exp = insn->exp;
4037 value = exp.X_add_number;
4038
4039 switch (field_selector)
4040 {
4041 /* No change. */
4042 case e_fsel:
4043 break;
4044
4045 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4046 case e_lssel:
4047 if (value & 0x00000400)
4048 value += 0x800;
4049 value = (value & 0xfffff800) >> 11;
4050 break;
4051
4052 /* Sign extend from bit 21. */
4053 case e_rssel:
4054 if (value & 0x00000400)
4055 value |= 0xfffff800;
4056 else
4057 value &= 0x7ff;
4058 break;
4059
4060 /* Arithmetic shift right 11 bits. */
4061 case e_lsel:
4062 value = (value & 0xfffff800) >> 11;
4063 break;
4064
4065 /* Set bits 0-20 to zero. */
4066 case e_rsel:
4067 value = value & 0x7ff;
4068 break;
4069
4070 /* Add 0x800 and arithmetic shift right 11 bits. */
4071 case e_ldsel:
4072 value += 0x800;
4073 value = (value & 0xfffff800) >> 11;
4074 break;
4075
4076 /* Set bitgs 0-21 to one. */
4077 case e_rdsel:
4078 value |= 0xfffff800;
4079 break;
4080
4081#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
4082 case e_rrsel:
4083 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
4084 break;
4085
4086 case e_lrsel:
4087 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
4088 break;
4089#undef RSEL_ROUND
4090
4091 default:
4092 BAD_CASE (field_selector);
4093 break;
4094 }
4095 return value;
4096}
4097
4098/* Given an argument location specification return the associated
4099 argument location number. */
4100
4101static unsigned int
4102pa_build_arg_reloc (type_name)
4103 char *type_name;
4104{
4105
4106 if (strncasecmp (type_name, "no", 2) == 0)
4107 return 0;
4108 if (strncasecmp (type_name, "gr", 2) == 0)
4109 return 1;
4110 else if (strncasecmp (type_name, "fr", 2) == 0)
4111 return 2;
4112 else if (strncasecmp (type_name, "fu", 2) == 0)
4113 return 3;
4114 else
4115 as_bad (_("Invalid argument location: %s\n"), type_name);
4116
4117 return 0;
4118}
4119
4120/* Encode and return an argument relocation specification for
4121 the given register in the location specified by arg_reloc. */
4122
4123static unsigned int
4124pa_align_arg_reloc (reg, arg_reloc)
4125 unsigned int reg;
4126 unsigned int arg_reloc;
4127{
4128 unsigned int new_reloc;
4129
4130 new_reloc = arg_reloc;
4131 switch (reg)
4132 {
4133 case 0:
4134 new_reloc <<= 8;
4135 break;
4136 case 1:
4137 new_reloc <<= 6;
4138 break;
4139 case 2:
4140 new_reloc <<= 4;
4141 break;
4142 case 3:
4143 new_reloc <<= 2;
4144 break;
4145 default:
4146 as_bad (_("Invalid argument description: %d"), reg);
4147 }
4148
4149 return new_reloc;
4150}
4151
4152/* Parse a PA nullification completer (,n). Return nonzero if the
4153 completer was found; return zero if no completer was found. */
4154
4155static int
4156pa_parse_nullif (s)
4157 char **s;
4158{
4159 int nullif;
4160
4161 nullif = 0;
4162 if (**s == ',')
4163 {
4164 *s = *s + 1;
4165 if (strncasecmp (*s, "n", 1) == 0)
4166 nullif = 1;
4167 else
4168 {
4169 as_bad (_("Invalid Nullification: (%c)"), **s);
4170 nullif = 0;
4171 }
4172 *s = *s + 1;
4173 }
4174
4175 return nullif;
4176}
4177
4178/* Parse a non-negated compare/subtract completer returning the
4179 number (for encoding in instrutions) of the given completer.
4180
4181 ISBRANCH specifies whether or not this is parsing a condition
4182 completer for a branch (vs a nullification completer for a
4183 computational instruction. */
4184
4185static int
4186pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
4187 char **s;
4188 int isbranch;
4189{
4190 int cmpltr;
4191 char *name = *s + 1;
4192 char c;
4193 char *save_s = *s;
4194 int nullify = 0;
4195
4196 cmpltr = 0;
4197 if (**s == ',')
4198 {
4199 *s += 1;
4200 while (**s != ',' && **s != ' ' && **s != '\t')
4201 *s += 1;
4202 c = **s;
4203 **s = 0x00;
4204
4205
4206 if (strcmp (name, "=") == 0)
4207 {
4208 cmpltr = 1;
4209 }
4210 else if (strcmp (name, "<") == 0)
4211 {
4212 cmpltr = 2;
4213 }
4214 else if (strcmp (name, "<=") == 0)
4215 {
4216 cmpltr = 3;
4217 }
4218 else if (strcmp (name, "<<") == 0)
4219 {
4220 cmpltr = 4;
4221 }
4222 else if (strcmp (name, "<<=") == 0)
4223 {
4224 cmpltr = 5;
4225 }
4226 else if (strcasecmp (name, "sv") == 0)
4227 {
4228 cmpltr = 6;
4229 }
4230 else if (strcasecmp (name, "od") == 0)
4231 {
4232 cmpltr = 7;
4233 }
4234 /* If we have something like addb,n then there is no condition
4235 completer. */
4236 else if (strcasecmp (name, "n") == 0 && isbranch)
4237 {
4238 cmpltr = 0;
4239 nullify = 1;
4240 }
4241 else
4242 {
4243 cmpltr = -1;
4244 }
4245 **s = c;
4246 }
4247
4248 /* Reset pointers if this was really a ,n for a branch instruction. */
4249 if (nullify)
4250 *s = save_s;
4251
4252
4253 return cmpltr;
4254}
4255
4256/* Parse a negated compare/subtract completer returning the
4257 number (for encoding in instrutions) of the given completer.
4258
4259 ISBRANCH specifies whether or not this is parsing a condition
4260 completer for a branch (vs a nullification completer for a
4261 computational instruction. */
4262
4263static int
4264pa_parse_neg_cmpsub_cmpltr (s, isbranch)
4265 char **s;
4266 int isbranch;
4267{
4268 int cmpltr;
4269 char *name = *s + 1;
4270 char c;
4271 char *save_s = *s;
4272 int nullify = 0;
4273
4274 cmpltr = 0;
4275 if (**s == ',')
4276 {
4277 *s += 1;
4278 while (**s != ',' && **s != ' ' && **s != '\t')
4279 *s += 1;
4280 c = **s;
4281 **s = 0x00;
4282
4283
4284 if (strcasecmp (name, "tr") == 0)
4285 {
4286 cmpltr = 0;
4287 }
4288 else if (strcmp (name, "<>") == 0)
4289 {
4290 cmpltr = 1;
4291 }
4292 else if (strcmp (name, ">=") == 0)
4293 {
4294 cmpltr = 2;
4295 }
4296 else if (strcmp (name, ">") == 0)
4297 {
4298 cmpltr = 3;
4299 }
4300 else if (strcmp (name, ">>=") == 0)
4301 {
4302 cmpltr = 4;
4303 }
4304 else if (strcmp (name, ">>") == 0)
4305 {
4306 cmpltr = 5;
4307 }
4308 else if (strcasecmp (name, "nsv") == 0)
4309 {
4310 cmpltr = 6;
4311 }
4312 else if (strcasecmp (name, "ev") == 0)
4313 {
4314 cmpltr = 7;
4315 }
4316 /* If we have something like addb,n then there is no condition
4317 completer. */
4318 else if (strcasecmp (name, "n") == 0 && isbranch)
4319 {
4320 cmpltr = 0;
4321 nullify = 1;
4322 }
4323 else
4324 {
4325 cmpltr = -1;
4326 }
4327 **s = c;
4328 }
4329
4330 /* Reset pointers if this was really a ,n for a branch instruction. */
4331 if (nullify)
4332 *s = save_s;
4333
4334
4335 return cmpltr;
4336}
4337
4338
4339/* Parse a non-negated addition completer returning the number
4340 (for encoding in instrutions) of the given completer.
4341
4342 ISBRANCH specifies whether or not this is parsing a condition
4343 completer for a branch (vs a nullification completer for a
4344 computational instruction. */
4345
4346static int
4347pa_parse_nonneg_add_cmpltr (s, isbranch)
4348 char **s;
4349 int isbranch;
4350{
4351 int cmpltr;
4352 char *name = *s + 1;
4353 char c;
4354 char *save_s = *s;
4355
4356 cmpltr = 0;
4357 if (**s == ',')
4358 {
4359 *s += 1;
4360 while (**s != ',' && **s != ' ' && **s != '\t')
4361 *s += 1;
4362 c = **s;
4363 **s = 0x00;
4364 if (strcmp (name, "=") == 0)
4365 {
4366 cmpltr = 1;
4367 }
4368 else if (strcmp (name, "<") == 0)
4369 {
4370 cmpltr = 2;
4371 }
4372 else if (strcmp (name, "<=") == 0)
4373 {
4374 cmpltr = 3;
4375 }
4376 else if (strcasecmp (name, "nuv") == 0)
4377 {
4378 cmpltr = 4;
4379 }
4380 else if (strcasecmp (name, "znv") == 0)
4381 {
4382 cmpltr = 5;
4383 }
4384 else if (strcasecmp (name, "sv") == 0)
4385 {
4386 cmpltr = 6;
4387 }
4388 else if (strcasecmp (name, "od") == 0)
4389 {
4390 cmpltr = 7;
4391 }
4392 /* If we have something like addb,n then there is no condition
4393 completer. */
4394 else if (strcasecmp (name, "n") == 0 && isbranch)
4395 {
4396 cmpltr = 0;
4397 }
4398 else
4399 {
4400 cmpltr = -1;
4401 }
4402 **s = c;
4403 }
4404
4405 /* Reset pointers if this was really a ,n for a branch instruction. */
4406 if (cmpltr == 0 && *name == 'n' && isbranch)
4407 *s = save_s;
4408
4409 return cmpltr;
4410}
4411
4412/* Parse a negated addition completer returning the number
4413 (for encoding in instrutions) of the given completer.
4414
4415 ISBRANCH specifies whether or not this is parsing a condition
4416 completer for a branch (vs a nullification completer for a
4417 computational instruction). */
4418
4419static int
4420pa_parse_neg_add_cmpltr (s, isbranch)
4421 char **s;
4422 int isbranch;
4423{
4424 int cmpltr;
4425 char *name = *s + 1;
4426 char c;
4427 char *save_s = *s;
4428
4429 cmpltr = 0;
4430 if (**s == ',')
4431 {
4432 *s += 1;
4433 while (**s != ',' && **s != ' ' && **s != '\t')
4434 *s += 1;
4435 c = **s;
4436 **s = 0x00;
4437 if (strcasecmp (name, "tr") == 0)
4438 {
4439 cmpltr = 0;
4440 }
4441 else if (strcmp (name, "<>") == 0)
4442 {
4443 cmpltr = 1;
4444 }
4445 else if (strcmp (name, ">=") == 0)
4446 {
4447 cmpltr = 2;
4448 }
4449 else if (strcmp (name, ">") == 0)
4450 {
4451 cmpltr = 3;
4452 }
4453 else if (strcasecmp (name, "uv") == 0)
4454 {
4455 cmpltr = 4;
4456 }
4457 else if (strcasecmp (name, "vnz") == 0)
4458 {
4459 cmpltr = 5;
4460 }
4461 else if (strcasecmp (name, "nsv") == 0)
4462 {
4463 cmpltr = 6;
4464 }
4465 else if (strcasecmp (name, "ev") == 0)
4466 {
4467 cmpltr = 7;
4468 }
4469 /* If we have something like addb,n then there is no condition
4470 completer. */
4471 else if (strcasecmp (name, "n") == 0 && isbranch)
4472 {
4473 cmpltr = 0;
4474 }
4475 else
4476 {
4477 cmpltr = -1;
4478 }
4479 **s = c;
4480 }
4481
4482 /* Reset pointers if this was really a ,n for a branch instruction. */
4483 if (cmpltr == 0 && *name == 'n' && isbranch)
4484 *s = save_s;
4485
4486 return cmpltr;
4487}
4488
49863f82 4489#ifdef OBJ_SOM
252b5132
RH		 4490/* Handle an alignment directive. Special so that we can update the
4491 alignment of the subspace if necessary. */
4492static void
4493pa_align (bytes)
4494{
4495 /* We must have a valid space and subspace. */
4496 pa_check_current_space_and_subspace ();
4497
4498 /* Let the generic gas code do most of the work. */
4499 s_align_bytes (bytes);
4500
4501 /* If bytes is a power of 2, then update the current subspace's
4502 alignment if necessary. */
4503 if (log2 (bytes) != -1)
4504 record_alignment (current_subspace->ssd_seg, log2 (bytes));
4505}
49863f82 4506#endif
252b5132
RH		 4507
4508/* Handle a .BLOCK type pseudo-op. */
4509
4510static void
4511pa_block (z)
4512 int z;
4513{
4514 char *p;
4515 long int temp_fill;
4516 unsigned int temp_size;
4517 unsigned int i;
4518
49863f82 4519#ifdef OBJ_SOM
252b5132
RH		 4520 /* We must have a valid space and subspace. */
4521 pa_check_current_space_and_subspace ();
49863f82 4522#endif
252b5132
RH		 4523
4524 temp_size = get_absolute_expression ();
4525
4526 /* Always fill with zeros, that's what the HP assembler does. */
4527 temp_fill = 0;
4528
4529 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
4530 (relax_substateT) 0, (symbolS *) 0, (offsetT) 1, NULL);
4531 memset (p, 0, temp_size);
4532
4533 /* Convert 2 bytes at a time. */
4534
4535 for (i = 0; i < temp_size; i += 2)
4536 {
4537 md_number_to_chars (p + i,
4538 (valueT) temp_fill,
4539 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
4540 }
4541
4542 pa_undefine_label ();
4543 demand_empty_rest_of_line ();
4544}
4545
4546/* Handle a .begin_brtab and .end_brtab pseudo-op. */
4547
4548static void
4549pa_brtab (begin)
4550 int begin;
4551{
4552
4553#ifdef OBJ_SOM
4554 /* The BRTAB relocations are only availble in SOM (to denote
4555 the beginning and end of branch tables). */
4556 char *where = frag_more (0);
4557
4558 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4559 NULL, (offsetT) 0, NULL,
4560 0, begin ? R_HPPA_BEGIN_BRTAB : R_HPPA_END_BRTAB,
4561 e_fsel, 0, 0, NULL);
4562#endif
4563
4564 demand_empty_rest_of_line ();
4565}
4566
4567/* Handle a .begin_try and .end_try pseudo-op. */
4568
4569static void
4570pa_try (begin)
4571 int begin;
4572{
4573#ifdef OBJ_SOM
4574 expressionS exp;
4575 char *where = frag_more (0);
4576
4577 if (! begin)
4578 expression (&exp);
4579
4580 /* The TRY relocations are only availble in SOM (to denote
4581 the beginning and end of exception handling regions). */
4582
4583 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4584 NULL, (offsetT) 0, begin ? NULL : &exp,
4585 0, begin ? R_HPPA_BEGIN_TRY : R_HPPA_END_TRY,
4586 e_fsel, 0, 0, NULL);
4587#endif
4588
4589 demand_empty_rest_of_line ();
4590}
4591
4592/* Handle a .CALL pseudo-op. This involves storing away information
4593 about where arguments are to be found so the linker can detect
4594 (and correct) argument location mismatches between caller and callee. */
4595
4596static void
4597pa_call (unused)
4598 int unused;
4599{
49863f82 4600#ifdef OBJ_SOM
252b5132
RH		 4601 /* We must have a valid space and subspace. */
4602 pa_check_current_space_and_subspace ();
49863f82 4603#endif
252b5132
RH		 4604
4605 pa_call_args (&last_call_desc);
4606 demand_empty_rest_of_line ();
4607}
4608
4609/* Do the dirty work of building a call descriptor which describes
4610 where the caller placed arguments to a function call. */
4611
4612static void
4613pa_call_args (call_desc)
4614 struct call_desc *call_desc;
4615{
4616 char *name, c, *p;
4617 unsigned int temp, arg_reloc;
4618
4619 while (!is_end_of_statement ())
4620 {
4621 name = input_line_pointer;
4622 c = get_symbol_end ();
4623 /* Process a source argument. */
4624 if ((strncasecmp (name, "argw", 4) == 0))
4625 {
4626 temp = atoi (name + 4);
4627 p = input_line_pointer;
4628 *p = c;
4629 input_line_pointer++;
4630 name = input_line_pointer;
4631 c = get_symbol_end ();
4632 arg_reloc = pa_build_arg_reloc (name);
4633 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
4634 }
4635 /* Process a return value. */
4636 else if ((strncasecmp (name, "rtnval", 6) == 0))
4637 {
4638 p = input_line_pointer;
4639 *p = c;
4640 input_line_pointer++;
4641 name = input_line_pointer;
4642 c = get_symbol_end ();
4643 arg_reloc = pa_build_arg_reloc (name);
4644 call_desc->arg_reloc |= (arg_reloc & 0x3);
4645 }
4646 else
4647 {
4648 as_bad (_("Invalid .CALL argument: %s"), name);
4649 }
4650 p = input_line_pointer;
4651 *p = c;
4652 if (!is_end_of_statement ())
4653 input_line_pointer++;
4654 }
4655}
4656
4657/* Return TRUE if FRAG1 and FRAG2 are the same. */
4658
4659static int
4660is_same_frag (frag1, frag2)
4661 fragS *frag1;
4662 fragS *frag2;
4663{
4664
4665 if (frag1 == NULL)
4666 return (FALSE);
4667 else if (frag2 == NULL)
4668 return (FALSE);
4669 else if (frag1 == frag2)
4670 return (TRUE);
4671 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
4672 return (is_same_frag (frag1, frag2->fr_next));
4673 else
4674 return (FALSE);
4675}
4676
4677#ifdef OBJ_ELF
4678/* Build an entry in the UNWIND subspace from the given function
4679 attributes in CALL_INFO. This is not needed for SOM as using
4680 R_ENTRY and R_EXIT relocations allow the linker to handle building
4681 of the unwind spaces. */
4682
4683static void
4684pa_build_unwind_subspace (call_info)
4685 struct call_info *call_info;
4686{
4687 char *unwind;
4688 asection *seg, *save_seg;
46031ca9 4689 asymbol *sym;
252b5132 4690 subsegT subseg, save_subseg;
46031ca9 4691 int i, reloc;
252b5132
RH		 4692 char c, *p;
4693
9100134c
JL		 4694 if (bfd_get_arch_info (stdoutput)->bits_per_address == 32)
4695 reloc = R_PARISC_DIR32;
46031ca9 4696 else
9100134c 4697 reloc = R_PARISC_SEGREL32;
46031ca9 4698
252b5132
RH		 4699 /* Get into the right seg/subseg. This may involve creating
4700 the seg the first time through. Make sure to have the
4701 old seg/subseg so that we can reset things when we are done. */
252b5132
RH		 4702 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
4703 if (seg == ASEC_NULL)
4704 {
4705 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
4706 bfd_set_section_flags (stdoutput, seg,
4707 SEC_READONLY | SEC_HAS_CONTENTS
b100be66
JL		 4708 | SEC_LOAD | SEC_RELOC | SEC_ALLOC | SEC_DATA);
4709 bfd_set_section_alignment (stdoutput, seg, 2);
252b5132
RH		 4710 }
4711
4712 save_seg = now_seg;
4713 save_subseg = now_subseg;
46031ca9 4714 subseg_set (seg, 0);
252b5132
RH		 4715
4716
4717 /* Get some space to hold relocation information for the unwind
4718 descriptor. */
4719 p = frag_more (4);
4720 md_number_to_chars (p, 0, 4);
4721
4722 /* Relocation info. for start offset of the function. */
4723 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4724 call_info->start_symbol, (offsetT) 0,
46031ca9
JL		 4725 (expressionS *) NULL, 0, reloc,
4726 e_fsel, 32, 0, NULL);
252b5132
RH		 4727
4728 p = frag_more (4);
4729 md_number_to_chars (p, 0, 4);
4730
4731 /* Relocation info. for end offset of the function.
4732
4733 Because we allow reductions of 32bit relocations for ELF, this will be
4734 reduced to section_sym + offset which avoids putting the temporary
4735 symbol into the symbol table. It (should) end up giving the same
4736 value as call_info->start_symbol + function size once the linker is
4737 finished with its work. */
4738
4739 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4740 call_info->end_symbol, (offsetT) 0,
46031ca9
JL		 4741 (expressionS *) NULL, 0, reloc,
4742 e_fsel, 32, 0, NULL);
252b5132
RH		 4743
4744 /* Dump it. */
4745 unwind = (char *) &call_info->ci_unwind;
4746 for (i = 8; i < sizeof (struct unwind_table); i++)
4747 {
4748 c = *(unwind + i);
4749 {
4750 FRAG_APPEND_1_CHAR (c);
4751 }
4752 }
4753
4754 /* Return back to the original segment/subsegment. */
4755 subseg_set (save_seg, save_subseg);
4756}
4757#endif
4758
4759/* Process a .CALLINFO pseudo-op. This information is used later
4760 to build unwind descriptors and maybe one day to support
4761 .ENTER and .LEAVE. */
4762
4763static void
4764pa_callinfo (unused)
4765 int unused;
4766{
4767 char *name, c, *p;
4768 int temp;
4769
49863f82 4770#ifdef OBJ_SOM
252b5132
RH		 4771 /* We must have a valid space and subspace. */
4772 pa_check_current_space_and_subspace ();
49863f82 4773#endif
252b5132
RH		 4774
4775 /* .CALLINFO must appear within a procedure definition. */
4776 if (!within_procedure)
4777 as_bad (_(".callinfo is not within a procedure definition"));
4778
4779 /* Mark the fact that we found the .CALLINFO for the
4780 current procedure. */
4781 callinfo_found = TRUE;
4782
4783 /* Iterate over the .CALLINFO arguments. */
4784 while (!is_end_of_statement ())
4785 {
4786 name = input_line_pointer;
4787 c = get_symbol_end ();
4788 /* Frame size specification. */
4789 if ((strncasecmp (name, "frame", 5) == 0))
4790 {
4791 p = input_line_pointer;
4792 *p = c;
4793 input_line_pointer++;
4794 temp = get_absolute_expression ();
4795 if ((temp & 0x3) != 0)
4796 {
4797 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp);
4798 temp = 0;
4799 }
4800
4801 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
4802 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
4803
4804 }
4805 /* Entry register (GR, GR and SR) specifications. */
4806 else if ((strncasecmp (name, "entry_gr", 8) == 0))
4807 {
4808 p = input_line_pointer;
4809 *p = c;
4810 input_line_pointer++;
4811 temp = get_absolute_expression ();
4812 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4813 even though %r19 is caller saved. I think this is a bug in
4814 the HP assembler, and we are not going to emulate it. */
4815 if (temp < 3 || temp > 18)
4816 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
4817 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
4818 }
4819 else if ((strncasecmp (name, "entry_fr", 8) == 0))
4820 {
4821 p = input_line_pointer;
4822 *p = c;
4823 input_line_pointer++;
4824 temp = get_absolute_expression ();
4825 /* Similarly the HP assembler takes 31 as the high bound even
4826 though %fr21 is the last callee saved floating point register. */
4827 if (temp < 12 || temp > 21)
4828 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
4829 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
4830 }
4831 else if ((strncasecmp (name, "entry_sr", 8) == 0))
4832 {
4833 p = input_line_pointer;
4834 *p = c;
4835 input_line_pointer++;
4836 temp = get_absolute_expression ();
4837 if (temp != 3)
4838 as_bad (_("Value for ENTRY_SR must be 3\n"));
4839 }
4840 /* Note whether or not this function performs any calls. */
4841 else if ((strncasecmp (name, "calls", 5) == 0) ||
4842 (strncasecmp (name, "caller", 6) == 0))
4843 {
4844 p = input_line_pointer;
4845 *p = c;
4846 }
4847 else if ((strncasecmp (name, "no_calls", 8) == 0))
4848 {
4849 p = input_line_pointer;
4850 *p = c;
4851 }
4852 /* Should RP be saved into the stack. */
4853 else if ((strncasecmp (name, "save_rp", 7) == 0))
4854 {
4855 p = input_line_pointer;
4856 *p = c;
4857 last_call_info->ci_unwind.descriptor.save_rp = 1;
4858 }
4859 /* Likewise for SP. */
4860 else if ((strncasecmp (name, "save_sp", 7) == 0))
4861 {
4862 p = input_line_pointer;
4863 *p = c;
4864 last_call_info->ci_unwind.descriptor.save_sp = 1;
4865 }
4866 /* Is this an unwindable procedure. If so mark it so
4867 in the unwind descriptor. */
4868 else if ((strncasecmp (name, "no_unwind", 9) == 0))
4869 {
4870 p = input_line_pointer;
4871 *p = c;
4872 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
4873 }
4874 /* Is this an interrupt routine. If so mark it in the
4875 unwind descriptor. */
4876 else if ((strncasecmp (name, "hpux_int", 7) == 0))
4877 {
4878 p = input_line_pointer;
4879 *p = c;
4880 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
4881 }
4882 /* Is this a millicode routine. "millicode" isn't in my
4883 assembler manual, but my copy is old. The HP assembler
4884 accepts it, and there's a place in the unwind descriptor
4885 to drop the information, so we'll accept it too. */
4886 else if ((strncasecmp (name, "millicode", 9) == 0))
4887 {
4888 p = input_line_pointer;
4889 *p = c;
4890 last_call_info->ci_unwind.descriptor.millicode = 1;
4891 }
4892 else
4893 {
4894 as_bad (_("Invalid .CALLINFO argument: %s"), name);
4895 *input_line_pointer = c;
4896 }
4897 if (!is_end_of_statement ())
4898 input_line_pointer++;
4899 }
4900
4901 demand_empty_rest_of_line ();
4902}
4903
4904/* Switch into the code subspace. */
4905
4906static void
4907pa_code (unused)
4908 int unused;
4909{
49863f82 4910#ifdef OBJ_SOM
252b5132
RH		 4911 current_space = is_defined_space ("$TEXT$");
4912 current_subspace
4913 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 4914#endif
252b5132
RH		 4915 s_text (0);
4916 pa_undefine_label ();
4917}
4918
4919/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4920 the .comm pseudo-op has the following symtax:
4921
4922 <label> .comm <length>
4923
4924 where <label> is optional and is a symbol whose address will be the start of
4925 a block of memory <length> bytes long. <length> must be an absolute
4926 expression. <length> bytes will be allocated in the current space
4927 and subspace.
4928
4929 Also note the label may not even be on the same line as the .comm.
4930
4931 This difference in syntax means the colon function will be called
4932 on the symbol before we arrive in pa_comm. colon will set a number
4933 of attributes of the symbol that need to be fixed here. In particular
4934 the value, section pointer, fragment pointer, flags, etc. What
4935 a pain.
4936
4937 This also makes error detection all but impossible. */
4938
4939static void
4940pa_comm (unused)
4941 int unused;
4942{
4943 unsigned int size;
4944 symbolS *symbol;
4945 label_symbol_struct *label_symbol = pa_get_label ();
4946
4947 if (label_symbol)
4948 symbol = label_symbol->lss_label;
4949 else
4950 symbol = NULL;
4951
4952 SKIP_WHITESPACE ();
4953 size = get_absolute_expression ();
4954
4955 if (symbol)
4956 {
4957 S_SET_VALUE (symbol, size);
4958 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
4959 S_SET_EXTERNAL (symbol);
4960
4961 /* colon() has already set the frag to the current location in the
4962 current subspace; we need to reset the fragment to the zero address
4963 fragment. We also need to reset the segment pointer. */
a0f75b47 4964 symbol_set_frag (symbol, &zero_address_frag);
252b5132
RH		 4965 }
4966 demand_empty_rest_of_line ();
4967}
4968
4969/* Process a .END pseudo-op. */
4970
4971static void
4972pa_end (unused)
4973 int unused;
4974{
4975 demand_empty_rest_of_line ();
4976}
4977
4978/* Process a .ENTER pseudo-op. This is not supported. */
4979static void
4980pa_enter (unused)
4981 int unused;
4982{
49863f82 4983#ifdef OBJ_SOM
252b5132
RH		 4984 /* We must have a valid space and subspace. */
4985 pa_check_current_space_and_subspace ();
49863f82 4986#endif
252b5132
RH		 4987
4988 as_bad (_("The .ENTER pseudo-op is not supported"));
4989 demand_empty_rest_of_line ();
4990}
4991
4992/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4993 procesure. */
4994static void
4995pa_entry (unused)
4996 int unused;
4997{
49863f82 4998#ifdef OBJ_SOM
252b5132
RH		 4999 /* We must have a valid space and subspace. */
5000 pa_check_current_space_and_subspace ();
49863f82 5001#endif
252b5132
RH		 5002
5003 if (!within_procedure)
5004 as_bad (_("Misplaced .entry. Ignored."));
5005 else
5006 {
5007 if (!callinfo_found)
5008 as_bad (_("Missing .callinfo."));
5009 }
5010 demand_empty_rest_of_line ();
5011 within_entry_exit = TRUE;
5012
5013#ifdef OBJ_SOM
5014 /* SOM defers building of unwind descriptors until the link phase.
5015 The assembler is responsible for creating an R_ENTRY relocation
5016 to mark the beginning of a region and hold the unwind bits, and
5017 for creating an R_EXIT relocation to mark the end of the region.
5018
5019 FIXME. ELF should be using the same conventions! The problem
5020 is an unwind requires too much relocation space. Hmmm. Maybe
5021 if we split the unwind bits up between the relocations which
5022 denote the entry and exit points. */
5023 if (last_call_info->start_symbol != NULL)
5024 {
5025 char *where = frag_more (0);
5026
5027 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5028 NULL, (offsetT) 0, NULL,
5029 0, R_HPPA_ENTRY, e_fsel, 0, 0,
5030 (int *) &last_call_info->ci_unwind.descriptor);
5031 }
5032#endif
5033}
5034
5035/* Handle a .EQU pseudo-op. */
5036
5037static void
5038pa_equ (reg)
5039 int reg;
5040{
5041 label_symbol_struct *label_symbol = pa_get_label ();
5042 symbolS *symbol;
5043
5044 if (label_symbol)
5045 {
5046 symbol = label_symbol->lss_label;
5047 if (reg)
5048 S_SET_VALUE (symbol, pa_parse_number (&input_line_pointer, 0));
5049 else
5050 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
5051 S_SET_SEGMENT (symbol, bfd_abs_section_ptr);
5052 }
5053 else
5054 {
5055 if (reg)
5056 as_bad (_(".REG must use a label"));
5057 else
5058 as_bad (_(".EQU must use a label"));
5059 }
5060
5061 pa_undefine_label ();
5062 demand_empty_rest_of_line ();
5063}
5064
5065/* Helper function. Does processing for the end of a function. This
5066 usually involves creating some relocations or building special
5067 symbols to mark the end of the function. */
5068
5069static void
5070process_exit ()
5071{
5072 char *where;
5073
5074 where = frag_more (0);
5075
5076#ifdef OBJ_ELF
5077 /* Mark the end of the function, stuff away the location of the frag
5078 for the end of the function, and finally call pa_build_unwind_subspace
5079 to add an entry in the unwind table. */
5080 hppa_elf_mark_end_of_function ();
5081 pa_build_unwind_subspace (last_call_info);
5082#else
5083 /* SOM defers building of unwind descriptors until the link phase.
5084 The assembler is responsible for creating an R_ENTRY relocation
5085 to mark the beginning of a region and hold the unwind bits, and
5086 for creating an R_EXIT relocation to mark the end of the region.
5087
5088 FIXME. ELF should be using the same conventions! The problem
5089 is an unwind requires too much relocation space. Hmmm. Maybe
5090 if we split the unwind bits up between the relocations which
5091 denote the entry and exit points. */
5092 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5093 NULL, (offsetT) 0,
5094 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0,
5095 (int *) &last_call_info->ci_unwind.descriptor + 1);
5096#endif
5097}
5098
5099/* Process a .EXIT pseudo-op. */
5100
5101static void
5102pa_exit (unused)
5103 int unused;
5104{
49863f82 5105#ifdef OBJ_SOM
252b5132
RH		 5106 /* We must have a valid space and subspace. */
5107 pa_check_current_space_and_subspace ();
49863f82 5108#endif
252b5132
RH		 5109
5110 if (!within_procedure)
5111 as_bad (_(".EXIT must appear within a procedure"));
5112 else
5113 {
5114 if (!callinfo_found)
5115 as_bad (_("Missing .callinfo"));
5116 else
5117 {
5118 if (!within_entry_exit)
5119 as_bad (_("No .ENTRY for this .EXIT"));
5120 else
5121 {
5122 within_entry_exit = FALSE;
5123 process_exit ();
5124 }
5125 }
5126 }
5127 demand_empty_rest_of_line ();
5128}
5129
5130/* Process a .EXPORT directive. This makes functions external
5131 and provides information such as argument relocation entries
5132 to callers. */
5133
5134static void
5135pa_export (unused)
5136 int unused;
5137{
5138 char *name, c, *p;
5139 symbolS *symbol;
5140
5141 name = input_line_pointer;
5142 c = get_symbol_end ();
5143 /* Make sure the given symbol exists. */
5144 if ((symbol = symbol_find_or_make (name)) == NULL)
5145 {
5146 as_bad (_("Cannot define export symbol: %s\n"), name);
5147 p = input_line_pointer;
5148 *p = c;
5149 input_line_pointer++;
5150 }
5151 else
5152 {
5153 /* OK. Set the external bits and process argument relocations. */
5154 S_SET_EXTERNAL (symbol);
5155 p = input_line_pointer;
5156 *p = c;
5157 if (!is_end_of_statement ())
5158 {
5159 input_line_pointer++;
5160 pa_type_args (symbol, 1);
5161 }
5162 }
5163
5164 demand_empty_rest_of_line ();
5165}
5166
5167/* Helper function to process arguments to a .EXPORT pseudo-op. */
5168
5169static void
5170pa_type_args (symbolP, is_export)
5171 symbolS *symbolP;
5172 int is_export;
5173{
5174 char *name, c, *p;
5175 unsigned int temp, arg_reloc;
5176 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
a0f75b47 5177 obj_symbol_type *symbol = (obj_symbol_type *) symbol_get_bfdsym (symbolP);
252b5132
RH		 5178
5179 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
5180
5181 {
5182 input_line_pointer += 8;
a0f75b47 5183 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 5184 S_SET_SEGMENT (symbolP, bfd_abs_section_ptr);
5185 type = SYMBOL_TYPE_ABSOLUTE;
5186 }
5187 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
5188 {
5189 input_line_pointer += 4;
5190 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5191 instead one should be IMPORTing/EXPORTing ENTRY types.
5192
5193 Complain if one tries to EXPORT a CODE type since that's never
5194 done. Both GCC and HP C still try to IMPORT CODE types, so
5195 silently fix them to be ENTRY types. */
a0f75b47 5196 if (S_IS_FUNCTION (symbolP))
252b5132
RH		 5197 {
5198 if (is_export)
a0f75b47
ILT		 5199 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5200 S_GET_NAME (symbolP));
252b5132 5201
a0f75b47 5202 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5203 type = SYMBOL_TYPE_ENTRY;
5204 }
5205 else
5206 {
a0f75b47 5207 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 5208 type = SYMBOL_TYPE_CODE;
5209 }
5210 }
5211 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
5212 {
5213 input_line_pointer += 4;
a0f75b47 5214 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 5215 type = SYMBOL_TYPE_DATA;
5216 }
5217 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
5218 {
5219 input_line_pointer += 5;
a0f75b47 5220 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5221 type = SYMBOL_TYPE_ENTRY;
5222 }
5223 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
5224 {
5225 input_line_pointer += 9;
a0f75b47 5226 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5227 type = SYMBOL_TYPE_MILLICODE;
5228 }
5229 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
5230 {
5231 input_line_pointer += 6;
a0f75b47 5232 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 5233 type = SYMBOL_TYPE_PLABEL;
5234 }
5235 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
5236 {
5237 input_line_pointer += 8;
a0f75b47 5238 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5239 type = SYMBOL_TYPE_PRI_PROG;
5240 }
5241 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
5242 {
5243 input_line_pointer += 8;
a0f75b47 5244 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5245 type = SYMBOL_TYPE_SEC_PROG;
5246 }
5247
5248 /* SOM requires much more information about symbol types
5249 than BFD understands. This is how we get this information
5250 to the SOM BFD backend. */
5251#ifdef obj_set_symbol_type
a0f75b47 5252 obj_set_symbol_type (symbol_get_bfdsym (symbolP), (int) type);
252b5132
RH		 5253#endif
5254
5255 /* Now that the type of the exported symbol has been handled,
5256 handle any argument relocation information. */
5257 while (!is_end_of_statement ())
5258 {
5259 if (*input_line_pointer == ',')
5260 input_line_pointer++;
5261 name = input_line_pointer;
5262 c = get_symbol_end ();
5263 /* Argument sources. */
5264 if ((strncasecmp (name, "argw", 4) == 0))
5265 {
5266 p = input_line_pointer;
5267 *p = c;
5268 input_line_pointer++;
5269 temp = atoi (name + 4);
5270 name = input_line_pointer;
5271 c = get_symbol_end ();
5272 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
49863f82 5273#ifdef OBJ_SOM
252b5132 5274 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
49863f82 5275#endif
252b5132
RH		 5276 *input_line_pointer = c;
5277 }
5278 /* The return value. */
5279 else if ((strncasecmp (name, "rtnval", 6)) == 0)
5280 {
5281 p = input_line_pointer;
5282 *p = c;
5283 input_line_pointer++;
5284 name = input_line_pointer;
5285 c = get_symbol_end ();
5286 arg_reloc = pa_build_arg_reloc (name);
49863f82 5287#ifdef OBJ_SOM
252b5132 5288 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
49863f82 5289#endif
252b5132
RH		 5290 *input_line_pointer = c;
5291 }
5292 /* Privelege level. */
5293 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
5294 {
5295 p = input_line_pointer;
5296 *p = c;
5297 input_line_pointer++;
5298 temp = atoi (input_line_pointer);
49863f82 5299#ifdef OBJ_SOM
252b5132 5300 symbol->tc_data.ap.hppa_priv_level = temp;
49863f82 5301#endif
252b5132
RH		 5302 c = get_symbol_end ();
5303 *input_line_pointer = c;
5304 }
5305 else
5306 {
5307 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name);
5308 p = input_line_pointer;
5309 *p = c;
5310 }
5311 if (!is_end_of_statement ())
5312 input_line_pointer++;
5313 }
5314}
5315
5316/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5317 assembly file must either be defined in the assembly file, or
5318 explicitly IMPORTED from another. */
5319
5320static void
5321pa_import (unused)
5322 int unused;
5323{
5324 char *name, c, *p;
5325 symbolS *symbol;
5326
5327 name = input_line_pointer;
5328 c = get_symbol_end ();
5329
5330 symbol = symbol_find (name);
5331 /* Ugh. We might be importing a symbol defined earlier in the file,
5332 in which case all the code below will really screw things up
5333 (set the wrong segment, symbol flags & type, etc). */
5334 if (symbol == NULL || !S_IS_DEFINED (symbol))
5335 {
5336 symbol = symbol_find_or_make (name);
5337 p = input_line_pointer;
5338 *p = c;
5339
5340 if (!is_end_of_statement ())
5341 {
5342 input_line_pointer++;
5343 pa_type_args (symbol, 0);
5344 }
5345 else
5346 {
5347 /* Sigh. To be compatable with the HP assembler and to help
5348 poorly written assembly code, we assign a type based on
5349 the the current segment. Note only BSF_FUNCTION really
5350 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5351 if (now_seg == text_section)
a0f75b47 5352 symbol_get_bfdsym (symbol)->flags |= BSF_FUNCTION;
252b5132
RH		 5353
5354 /* If the section is undefined, then the symbol is undefined
5355 Since this is an import, leave the section undefined. */
5356 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
5357 }
5358 }
5359 else
5360 {
5361 /* The symbol was already defined. Just eat everything up to
5362 the end of the current statement. */
5363 while (!is_end_of_statement ())
5364 input_line_pointer++;
5365 }
5366
5367 demand_empty_rest_of_line ();
5368}
5369
5370/* Handle a .LABEL pseudo-op. */
5371
5372static void
5373pa_label (unused)
5374 int unused;
5375{
5376 char *name, c, *p;
5377
5378 name = input_line_pointer;
5379 c = get_symbol_end ();
5380
5381 if (strlen (name) > 0)
5382 {
5383 colon (name);
5384 p = input_line_pointer;
5385 *p = c;
5386 }
5387 else
5388 {
5389 as_warn (_("Missing label name on .LABEL"));
5390 }
5391
5392 if (!is_end_of_statement ())
5393 {
5394 as_warn (_("extra .LABEL arguments ignored."));
5395 ignore_rest_of_line ();
5396 }
5397 demand_empty_rest_of_line ();
5398}
5399
5400/* Handle a .LEAVE pseudo-op. This is not supported yet. */
5401
5402static void
5403pa_leave (unused)
5404 int unused;
5405{
49863f82 5406#ifdef OBJ_SOM
252b5132
RH		 5407 /* We must have a valid space and subspace. */
5408 pa_check_current_space_and_subspace ();
49863f82 5409#endif
252b5132
RH		 5410
5411 as_bad (_("The .LEAVE pseudo-op is not supported"));
5412 demand_empty_rest_of_line ();
5413}
5414
5415/* Handle a .LEVEL pseudo-op. */
5416
5417static void
5418pa_level (unused)
5419 int unused;
5420{
5421 char *level;
5422
5423 level = input_line_pointer;
5424 if (strncmp (level, "1.0", 3) == 0)
5425 {
5426 input_line_pointer += 3;
5427 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
5428 as_warn (_("could not set architecture and machine"));
5429 }
5430 else if (strncmp (level, "1.1", 3) == 0)
5431 {
5432 input_line_pointer += 3;
5433 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 11))
5434 as_warn (_("could not set architecture and machine"));
5435 }
46031ca9
JL		 5436 else if (strncmp (level, "2.0w", 4) == 0)
5437 {
5438 input_line_pointer += 4;
5439 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 25))
5440 as_warn (_("could not set architecture and machine"));
5441 }
252b5132
RH		 5442 else if (strncmp (level, "2.0", 3) == 0)
5443 {
5444 input_line_pointer += 3;
5445 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 20))
5446 as_warn (_("could not set architecture and machine"));
5447 }
5448 else
5449 {
5450 as_bad (_("Unrecognized .LEVEL argument\n"));
5451 ignore_rest_of_line ();
5452 }
5453 demand_empty_rest_of_line ();
5454}
5455
5456/* Handle a .ORIGIN pseudo-op. */
5457
5458static void
5459pa_origin (unused)
5460 int unused;
5461{
49863f82 5462#ifdef OBJ_SOM
252b5132
RH		 5463 /* We must have a valid space and subspace. */
5464 pa_check_current_space_and_subspace ();
49863f82 5465#endif
252b5132
RH		 5466
5467 s_org (0);
5468 pa_undefine_label ();
5469}
5470
5471/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5472 is for static functions. FIXME. Should share more code with .EXPORT. */
5473
5474static void
5475pa_param (unused)
5476 int unused;
5477{
5478 char *name, c, *p;
5479 symbolS *symbol;
5480
5481 name = input_line_pointer;
5482 c = get_symbol_end ();
5483
5484 if ((symbol = symbol_find_or_make (name)) == NULL)
5485 {
5486 as_bad (_("Cannot define static symbol: %s\n"), name);
5487 p = input_line_pointer;
5488 *p = c;
5489 input_line_pointer++;
5490 }
5491 else
5492 {
5493 S_CLEAR_EXTERNAL (symbol);
5494 p = input_line_pointer;
5495 *p = c;
5496 if (!is_end_of_statement ())
5497 {
5498 input_line_pointer++;
5499 pa_type_args (symbol, 0);
5500 }
5501 }
5502
5503 demand_empty_rest_of_line ();
5504}
5505
5506/* Handle a .PROC pseudo-op. It is used to mark the beginning
5507 of a procedure from a syntatical point of view. */
5508
5509static void
5510pa_proc (unused)
5511 int unused;
5512{
5513 struct call_info *call_info;
5514
49863f82 5515#ifdef OBJ_SOM
252b5132
RH		 5516 /* We must have a valid space and subspace. */
5517 pa_check_current_space_and_subspace ();
49863f82 5518#endif
252b5132
RH		 5519
5520 if (within_procedure)
5521 as_fatal (_("Nested procedures"));
5522
5523 /* Reset global variables for new procedure. */
5524 callinfo_found = FALSE;
5525 within_procedure = TRUE;
5526
5527 /* Create another call_info structure. */
5528 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
5529
5530 if (!call_info)
5531 as_fatal (_("Cannot allocate unwind descriptor\n"));
5532
5533 memset (call_info, 0, sizeof (struct call_info));
5534
5535 call_info->ci_next = NULL;
5536
5537 if (call_info_root == NULL)
5538 {
5539 call_info_root = call_info;
5540 last_call_info = call_info;
5541 }
5542 else
5543 {
5544 last_call_info->ci_next = call_info;
5545 last_call_info = call_info;
5546 }
5547
5548 /* set up defaults on call_info structure */
5549
5550 call_info->ci_unwind.descriptor.cannot_unwind = 0;
5551 call_info->ci_unwind.descriptor.region_desc = 1;
5552 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
5553
5554 /* If we got a .PROC pseudo-op, we know that the function is defined
5555 locally. Make sure it gets into the symbol table. */
5556 {
5557 label_symbol_struct *label_symbol = pa_get_label ();
5558
5559 if (label_symbol)
5560 {
5561 if (label_symbol->lss_label)
5562 {
5563 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47 5564 symbol_get_bfdsym (label_symbol->lss_label)->flags |= BSF_FUNCTION;
252b5132
RH		 5565 }
5566 else
5567 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5568 }
5569 else
5570 last_call_info->start_symbol = NULL;
5571 }
5572
5573 demand_empty_rest_of_line ();
5574}
5575
5576/* Process the syntatical end of a procedure. Make sure all the
5577 appropriate pseudo-ops were found within the procedure. */
5578
5579static void
5580pa_procend (unused)
5581 int unused;
5582{
5583
49863f82 5584#ifdef OBJ_SOM
252b5132
RH		 5585 /* We must have a valid space and subspace. */
5586 pa_check_current_space_and_subspace ();
49863f82 5587#endif
252b5132
RH		 5588
5589 /* If we are within a procedure definition, make sure we've
5590 defined a label for the procedure; handle case where the
5591 label was defined after the .PROC directive.
5592
5593 Note there's not need to diddle with the segment or fragment
5594 for the label symbol in this case. We have already switched
5595 into the new $CODE$ subspace at this point. */
5596 if (within_procedure && last_call_info->start_symbol == NULL)
5597 {
5598 label_symbol_struct *label_symbol = pa_get_label ();
5599
5600 if (label_symbol)
5601 {
5602 if (label_symbol->lss_label)
5603 {
5604 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47
ILT		 5605 symbol_get_bfdsym (label_symbol->lss_label)->flags
5606 |= BSF_FUNCTION;
252b5132
RH		 5607#ifdef OBJ_SOM
5608 /* Also handle allocation of a fixup to hold the unwind
5609 information when the label appears after the proc/procend. */
5610 if (within_entry_exit)
5611 {
5612 char *where = frag_more (0);
5613
5614 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5615 NULL, (offsetT) 0, NULL,
5616 0, R_HPPA_ENTRY, e_fsel, 0, 0,
5617 (int *) &last_call_info->ci_unwind.descriptor);
5618 }
5619#endif
5620 }
5621 else
5622 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5623 }
5624 else
5625 as_bad (_("Missing function name for .PROC"));
5626 }
5627
5628 if (!within_procedure)
5629 as_bad (_("misplaced .procend"));
5630
5631 if (!callinfo_found)
5632 as_bad (_("Missing .callinfo for this procedure"));
5633
5634 if (within_entry_exit)
5635 as_bad (_("Missing .EXIT for a .ENTRY"));
5636
5637#ifdef OBJ_ELF
5638 /* ELF needs to mark the end of each function so that it can compute
5639 the size of the function (apparently its needed in the symbol table). */
5640 hppa_elf_mark_end_of_function ();
5641#endif
5642
5643 within_procedure = FALSE;
5644 demand_empty_rest_of_line ();
5645 pa_undefine_label ();
5646}
5647
49863f82
JL		 5648/* If VALUE is an exact power of two between zero and 2^31, then
5649 return log2 (VALUE). Else return -1. */
5650
5651static int
5652log2 (value)
5653 int value;
5654{
5655 int shift = 0;
5656
5657 while ((1 << shift) != value && shift < 32)
5658 shift++;
5659
5660 if (shift >= 32)
5661 return -1;
5662 else
5663 return shift;
5664}
5665
5666
5667#ifdef OBJ_SOM
5668/* Check to make sure we have a valid space and subspace. */
5669
5670static void
5671pa_check_current_space_and_subspace ()
5672{
5673 if (current_space == NULL)
5674 as_fatal (_("Not in a space.\n"));
5675
5676 if (current_subspace == NULL)
5677 as_fatal (_("Not in a subspace.\n"));
5678}
5679
252b5132
RH		 5680/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5681 then create a new space entry to hold the information specified
5682 by the parameters to the .SPACE directive. */
5683
5684static sd_chain_struct *
5685pa_parse_space_stmt (space_name, create_flag)
5686 char *space_name;
5687 int create_flag;
5688{
5689 char *name, *ptemp, c;
5690 char loadable, defined, private, sort;
5691 int spnum, temp;
5692 asection *seg = NULL;
5693 sd_chain_struct *space;
5694
5695 /* load default values */
5696 spnum = 0;
5697 sort = 0;
5698 loadable = TRUE;
5699 defined = TRUE;
5700 private = FALSE;
5701 if (strcmp (space_name, "$TEXT$") == 0)
5702 {
5703 seg = pa_def_spaces[0].segment;
5704 defined = pa_def_spaces[0].defined;
5705 private = pa_def_spaces[0].private;
5706 sort = pa_def_spaces[0].sort;
5707 spnum = pa_def_spaces[0].spnum;
5708 }
5709 else if (strcmp (space_name, "$PRIVATE$") == 0)
5710 {
5711 seg = pa_def_spaces[1].segment;
5712 defined = pa_def_spaces[1].defined;
5713 private = pa_def_spaces[1].private;
5714 sort = pa_def_spaces[1].sort;
5715 spnum = pa_def_spaces[1].spnum;
5716 }
5717
5718 if (!is_end_of_statement ())
5719 {
5720 print_errors = FALSE;
5721 ptemp = input_line_pointer + 1;
5722 /* First see if the space was specified as a number rather than
5723 as a name. According to the PA assembly manual the rest of
5724 the line should be ignored. */
5725 temp = pa_parse_number (&ptemp, 0);
5726 if (temp >= 0)
5727 {
5728 spnum = temp;
5729 input_line_pointer = ptemp;
5730 }
5731 else
5732 {
5733 while (!is_end_of_statement ())
5734 {
5735 input_line_pointer++;
5736 name = input_line_pointer;
5737 c = get_symbol_end ();
5738 if ((strncasecmp (name, "spnum", 5) == 0))
5739 {
5740 *input_line_pointer = c;
5741 input_line_pointer++;
5742 spnum = get_absolute_expression ();
5743 }
5744 else if ((strncasecmp (name, "sort", 4) == 0))
5745 {
5746 *input_line_pointer = c;
5747 input_line_pointer++;
5748 sort = get_absolute_expression ();
5749 }
5750 else if ((strncasecmp (name, "unloadable", 10) == 0))
5751 {
5752 *input_line_pointer = c;
5753 loadable = FALSE;
5754 }
5755 else if ((strncasecmp (name, "notdefined", 10) == 0))
5756 {
5757 *input_line_pointer = c;
5758 defined = FALSE;
5759 }
5760 else if ((strncasecmp (name, "private", 7) == 0))
5761 {
5762 *input_line_pointer = c;
5763 private = TRUE;
5764 }
5765 else
5766 {
5767 as_bad (_("Invalid .SPACE argument"));
5768 *input_line_pointer = c;
5769 if (!is_end_of_statement ())
5770 input_line_pointer++;
5771 }
5772 }
5773 }
5774 print_errors = TRUE;
5775 }
5776
5777 if (create_flag && seg == NULL)
5778 seg = subseg_new (space_name, 0);
5779
5780 /* If create_flag is nonzero, then create the new space with
5781 the attributes computed above. Else set the values in
5782 an already existing space -- this can only happen for
5783 the first occurence of a built-in space. */
5784 if (create_flag)
5785 space = create_new_space (space_name, spnum, loadable, defined,
5786 private, sort, seg, 1);
5787 else
5788 {
5789 space = is_defined_space (space_name);
5790 SPACE_SPNUM (space) = spnum;
5791 SPACE_DEFINED (space) = defined & 1;
5792 SPACE_USER_DEFINED (space) = 1;
5793 }
5794
5795#ifdef obj_set_section_attributes
5796 obj_set_section_attributes (seg, defined, private, sort, spnum);
5797#endif
5798
5799 return space;
5800}
5801
5802/* Handle a .SPACE pseudo-op; this switches the current space to the
5803 given space, creating the new space if necessary. */
5804
5805static void
5806pa_space (unused)
5807 int unused;
5808{
5809 char *name, c, *space_name, *save_s;
5810 int temp;
5811 sd_chain_struct *sd_chain;
5812
5813 if (within_procedure)
5814 {
5815 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
5816 ignore_rest_of_line ();
5817 }
5818 else
5819 {
5820 /* Check for some of the predefined spaces. FIXME: most of the code
5821 below is repeated several times, can we extract the common parts
5822 and place them into a subroutine or something similar? */
5823 /* FIXME Is this (and the next IF stmt) really right?
5824 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5825 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
5826 {
5827 input_line_pointer += 6;
5828 sd_chain = is_defined_space ("$TEXT$");
5829 if (sd_chain == NULL)
5830 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
5831 else if (SPACE_USER_DEFINED (sd_chain) == 0)
5832 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
5833
5834 current_space = sd_chain;
5835 subseg_set (text_section, sd_chain->sd_last_subseg);
5836 current_subspace
5837 = pa_subsegment_to_subspace (text_section,
5838 sd_chain->sd_last_subseg);
5839 demand_empty_rest_of_line ();
5840 return;
5841 }
5842 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
5843 {
5844 input_line_pointer += 9;
5845 sd_chain = is_defined_space ("$PRIVATE$");
5846 if (sd_chain == NULL)
5847 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
5848 else if (SPACE_USER_DEFINED (sd_chain) == 0)
5849 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
5850
5851 current_space = sd_chain;
5852 subseg_set (data_section, sd_chain->sd_last_subseg);
5853 current_subspace
5854 = pa_subsegment_to_subspace (data_section,
5855 sd_chain->sd_last_subseg);
5856 demand_empty_rest_of_line ();
5857 return;
5858 }
5859 if (!strncasecmp (input_line_pointer,
5860 GDB_DEBUG_SPACE_NAME,
5861 strlen (GDB_DEBUG_SPACE_NAME)))
5862 {
5863 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
5864 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
5865 if (sd_chain == NULL)
5866 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
5867 else if (SPACE_USER_DEFINED (sd_chain) == 0)
5868 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
5869
5870 current_space = sd_chain;
5871
5872 {
5873 asection *gdb_section
5874 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
5875
5876 subseg_set (gdb_section, sd_chain->sd_last_subseg);
5877 current_subspace
5878 = pa_subsegment_to_subspace (gdb_section,
5879 sd_chain->sd_last_subseg);
5880 }
5881 demand_empty_rest_of_line ();
5882 return;
5883 }
5884
5885 /* It could be a space specified by number. */
5886 print_errors = 0;
5887 save_s = input_line_pointer;
5888 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
5889 {
5890 if ((sd_chain = pa_find_space_by_number (temp)))
5891 {
5892 current_space = sd_chain;
5893
5894 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
5895 current_subspace
5896 = pa_subsegment_to_subspace (sd_chain->sd_seg,
5897 sd_chain->sd_last_subseg);
5898 demand_empty_rest_of_line ();
5899 return;
5900 }
5901 }
5902
5903 /* Not a number, attempt to create a new space. */
5904 print_errors = 1;
5905 input_line_pointer = save_s;
5906 name = input_line_pointer;
5907 c = get_symbol_end ();
5908 space_name = xmalloc (strlen (name) + 1);
5909 strcpy (space_name, name);
5910 *input_line_pointer = c;
5911
5912 sd_chain = pa_parse_space_stmt (space_name, 1);
5913 current_space = sd_chain;
5914
5915 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
5916 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
5917 sd_chain->sd_last_subseg);
5918 demand_empty_rest_of_line ();
5919 }
5920}
5921
5922/* Switch to a new space. (I think). FIXME. */
5923
5924static void
5925pa_spnum (unused)
5926 int unused;
5927{
5928 char *name;
5929 char c;
5930 char *p;
5931 sd_chain_struct *space;
5932
5933 name = input_line_pointer;
5934 c = get_symbol_end ();
5935 space = is_defined_space (name);
5936 if (space)
5937 {
5938 p = frag_more (4);
5939 md_number_to_chars (p, SPACE_SPNUM (space), 4);
5940 }
5941 else
5942 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name);
5943
5944 *input_line_pointer = c;
5945 demand_empty_rest_of_line ();
5946}
5947
252b5132
RH		 5948/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
5949 given subspace, creating the new subspace if necessary.
5950
5951 FIXME. Should mirror pa_space more closely, in particular how
5952 they're broken up into subroutines. */
5953
5954static void
5955pa_subspace (create_new)
5956 int create_new;
5957{
49863f82 5958 char *name, *ss_name, c;
252b5132
RH		 5959 char loadable, code_only, common, dup_common, zero, sort;
5960 int i, access, space_index, alignment, quadrant, applicable, flags;
5961 sd_chain_struct *space;
5962 ssd_chain_struct *ssd;
5963 asection *section;
5964
5965 if (current_space == NULL)
5966 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
5967
5968 if (within_procedure)
5969 {
5970 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
5971 ignore_rest_of_line ();
5972 }
5973 else
5974 {
5975 name = input_line_pointer;
5976 c = get_symbol_end ();
5977 ss_name = xmalloc (strlen (name) + 1);
5978 strcpy (ss_name, name);
5979 *input_line_pointer = c;
5980
5981 /* Load default values. */
5982 sort = 0;
5983 access = 0x7f;
5984 loadable = 1;
5985 common = 0;
5986 dup_common = 0;
5987 code_only = 0;
5988 zero = 0;
5989 space_index = ~0;
5990 alignment = 1;
5991 quadrant = 0;
252b5132
RH		 5992
5993 space = current_space;
5994 if (create_new)
5995 ssd = NULL;
5996 else
5997 ssd = is_defined_subspace (ss_name);
5998 /* Allow user to override the builtin attributes of subspaces. But
5999 only allow the attributes to be changed once! */
6000 if (ssd && SUBSPACE_DEFINED (ssd))
6001 {
6002 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
6003 current_subspace = ssd;
6004 if (!is_end_of_statement ())
6005 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6006 demand_empty_rest_of_line ();
6007 return;
6008 }
6009 else
6010 {
6011 /* A new subspace. Load default values if it matches one of
6012 the builtin subspaces. */
6013 i = 0;
6014 while (pa_def_subspaces[i].name)
6015 {
6016 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
6017 {
6018 loadable = pa_def_subspaces[i].loadable;
6019 common = pa_def_subspaces[i].common;
6020 dup_common = pa_def_subspaces[i].dup_common;
6021 code_only = pa_def_subspaces[i].code_only;
6022 zero = pa_def_subspaces[i].zero;
6023 space_index = pa_def_subspaces[i].space_index;
6024 alignment = pa_def_subspaces[i].alignment;
6025 quadrant = pa_def_subspaces[i].quadrant;
6026 access = pa_def_subspaces[i].access;
6027 sort = pa_def_subspaces[i].sort;
252b5132
RH		 6028 break;
6029 }
6030 i++;
6031 }
6032 }
6033
6034 /* We should be working with a new subspace now. Fill in
6035 any information as specified by the user. */
6036 if (!is_end_of_statement ())
6037 {
6038 input_line_pointer++;
6039 while (!is_end_of_statement ())
6040 {
6041 name = input_line_pointer;
6042 c = get_symbol_end ();
6043 if ((strncasecmp (name, "quad", 4) == 0))
6044 {
6045 *input_line_pointer = c;
6046 input_line_pointer++;
6047 quadrant = get_absolute_expression ();
6048 }
6049 else if ((strncasecmp (name, "align", 5) == 0))
6050 {
6051 *input_line_pointer = c;
6052 input_line_pointer++;
6053 alignment = get_absolute_expression ();
6054 if (log2 (alignment) == -1)
6055 {
6056 as_bad (_("Alignment must be a power of 2"));
6057 alignment = 1;
6058 }
6059 }
6060 else if ((strncasecmp (name, "access", 6) == 0))
6061 {
6062 *input_line_pointer = c;
6063 input_line_pointer++;
6064 access = get_absolute_expression ();
6065 }
6066 else if ((strncasecmp (name, "sort", 4) == 0))
6067 {
6068 *input_line_pointer = c;
6069 input_line_pointer++;
6070 sort = get_absolute_expression ();
6071 }
6072 else if ((strncasecmp (name, "code_only", 9) == 0))
6073 {
6074 *input_line_pointer = c;
6075 code_only = 1;
6076 }
6077 else if ((strncasecmp (name, "unloadable", 10) == 0))
6078 {
6079 *input_line_pointer = c;
6080 loadable = 0;
6081 }
6082 else if ((strncasecmp (name, "common", 6) == 0))
6083 {
6084 *input_line_pointer = c;
6085 common = 1;
6086 }
6087 else if ((strncasecmp (name, "dup_comm", 8) == 0))
6088 {
6089 *input_line_pointer = c;
6090 dup_common = 1;
6091 }
6092 else if ((strncasecmp (name, "zero", 4) == 0))
6093 {
6094 *input_line_pointer = c;
6095 zero = 1;
6096 }
6097 else if ((strncasecmp (name, "first", 5) == 0))
6098 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
6099 else
6100 as_bad (_("Invalid .SUBSPACE argument"));
6101 if (!is_end_of_statement ())
6102 input_line_pointer++;
6103 }
6104 }
6105
6106 /* Compute a reasonable set of BFD flags based on the information
6107 in the .subspace directive. */
6108 applicable = bfd_applicable_section_flags (stdoutput);
6109 flags = 0;
6110 if (loadable)
6111 flags |= (SEC_ALLOC | SEC_LOAD);
6112 if (code_only)
6113 flags |= SEC_CODE;
6114 if (common || dup_common)
6115 flags |= SEC_IS_COMMON;
6116
6117 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
6118
6119 /* This is a zero-filled subspace (eg BSS). */
6120 if (zero)
6121 flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
6122
6123 applicable &= flags;
6124
6125 /* If this is an existing subspace, then we want to use the
6126 segment already associated with the subspace.
6127
6128 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6129 lots of sections. It might be a problem in the PA ELF
6130 code, I do not know yet. For now avoid creating anything
6131 but the "standard" sections for ELF. */
6132 if (create_new)
6133 section = subseg_force_new (ss_name, 0);
6134 else if (ssd)
6135 section = ssd->ssd_seg;
252b5132
RH		 6136 else
6137 section = subseg_new (ss_name, 0);
6138
6139 if (zero)
6140 seg_info (section)->bss = 1;
6141
6142 /* Now set the flags. */
6143 bfd_set_section_flags (stdoutput, section, applicable);
6144
6145 /* Record any alignment request for this section. */
6146 record_alignment (section, log2 (alignment));
6147
6148 /* Set the starting offset for this section. */
6149 bfd_set_section_vma (stdoutput, section,
6150 pa_subspace_start (space, quadrant));
6151
6152 /* Now that all the flags are set, update an existing subspace,
6153 or create a new one. */
6154 if (ssd)
6155
6156 current_subspace = update_subspace (space, ss_name, loadable,
6157 code_only, common, dup_common,
6158 sort, zero, access, space_index,
6159 alignment, quadrant,
6160 section);
6161 else
6162 current_subspace = create_new_subspace (space, ss_name, loadable,
6163 code_only, common,
6164 dup_common, zero, sort,
6165 access, space_index,
6166 alignment, quadrant, section);
6167
6168 demand_empty_rest_of_line ();
6169 current_subspace->ssd_seg = section;
6170 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
6171 }
6172 SUBSPACE_DEFINED (current_subspace) = 1;
6173}
6174
6175
6176/* Create default space and subspace dictionaries. */
6177
6178static void
6179pa_spaces_begin ()
6180{
6181 int i;
6182
6183 space_dict_root = NULL;
6184 space_dict_last = NULL;
6185
6186 i = 0;
6187 while (pa_def_spaces[i].name)
6188 {
6189 char *name;
6190
6191 /* Pick the right name to use for the new section. */
49863f82 6192 name = pa_def_spaces[i].name;
252b5132
RH		 6193
6194 pa_def_spaces[i].segment = subseg_new (name, 0);
6195 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
6196 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
6197 pa_def_spaces[i].private, pa_def_spaces[i].sort,
6198 pa_def_spaces[i].segment, 0);
6199 i++;
6200 }
6201
6202 i = 0;
6203 while (pa_def_subspaces[i].name)
6204 {
6205 char *name;
6206 int applicable, subsegment;
6207 asection *segment = NULL;
6208 sd_chain_struct *space;
6209
6210 /* Pick the right name for the new section and pick the right
6211 subsegment number. */
49863f82
JL		 6212 name = pa_def_subspaces[i].name;
6213 subsegment = 0;
252b5132
RH		 6214
6215 /* Create the new section. */
6216 segment = subseg_new (name, subsegment);
6217
6218
6219 /* For SOM we want to replace the standard .text, .data, and .bss
6220 sections with our own. We also want to set BFD flags for
6221 all the built-in subspaces. */
49863f82 6222 if (!strcmp (pa_def_subspaces[i].name, "$CODE$"))
252b5132
RH		 6223 {
6224 text_section = segment;
6225 applicable = bfd_applicable_section_flags (stdoutput);
6226 bfd_set_section_flags (stdoutput, segment,
6227 applicable & (SEC_ALLOC | SEC_LOAD
6228 | SEC_RELOC | SEC_CODE
6229 | SEC_READONLY
6230 | SEC_HAS_CONTENTS));
6231 }
49863f82 6232 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$"))
252b5132
RH		 6233 {
6234 data_section = segment;
6235 applicable = bfd_applicable_section_flags (stdoutput);
6236 bfd_set_section_flags (stdoutput, segment,
6237 applicable & (SEC_ALLOC | SEC_LOAD
6238 | SEC_RELOC
6239 | SEC_HAS_CONTENTS));
6240
6241
6242 }
49863f82 6243 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$"))
252b5132
RH		 6244 {
6245 bss_section = segment;
6246 applicable = bfd_applicable_section_flags (stdoutput);
6247 bfd_set_section_flags (stdoutput, segment,
6248 applicable & SEC_ALLOC);
6249 }
49863f82 6250 else if (!strcmp (pa_def_subspaces[i].name, "$LIT$"))
252b5132
RH		 6251 {
6252 applicable = bfd_applicable_section_flags (stdoutput);
6253 bfd_set_section_flags (stdoutput, segment,
6254 applicable & (SEC_ALLOC | SEC_LOAD
6255 | SEC_RELOC
6256 | SEC_READONLY
6257 | SEC_HAS_CONTENTS));
6258 }
49863f82 6259 else if (!strcmp (pa_def_subspaces[i].name, "$MILLICODE$"))
252b5132
RH		 6260 {
6261 applicable = bfd_applicable_section_flags (stdoutput);
6262 bfd_set_section_flags (stdoutput, segment,
6263 applicable & (SEC_ALLOC | SEC_LOAD
6264 | SEC_RELOC
6265 | SEC_READONLY
6266 | SEC_HAS_CONTENTS));
6267 }
49863f82 6268 else if (!strcmp (pa_def_subspaces[i].name, "$UNWIND$"))
252b5132
RH		 6269 {
6270 applicable = bfd_applicable_section_flags (stdoutput);
6271 bfd_set_section_flags (stdoutput, segment,
6272 applicable & (SEC_ALLOC | SEC_LOAD
6273 | SEC_RELOC
6274 | SEC_READONLY
6275 | SEC_HAS_CONTENTS));
6276 }
6277
6278 /* Find the space associated with this subspace. */
6279 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
6280 def_space_index].segment);
6281 if (space == NULL)
6282 {
6283 as_fatal (_("Internal error: Unable to find containing space for %s."),
6284 pa_def_subspaces[i].name);
6285 }
6286
6287 create_new_subspace (space, name,
6288 pa_def_subspaces[i].loadable,
6289 pa_def_subspaces[i].code_only,
6290 pa_def_subspaces[i].common,
6291 pa_def_subspaces[i].dup_common,
6292 pa_def_subspaces[i].zero,
6293 pa_def_subspaces[i].sort,
6294 pa_def_subspaces[i].access,
6295 pa_def_subspaces[i].space_index,
6296 pa_def_subspaces[i].alignment,
6297 pa_def_subspaces[i].quadrant,
6298 segment);
6299 i++;
6300 }
6301}
6302
6303
6304
6305/* Create a new space NAME, with the appropriate flags as defined
6306 by the given parameters. */
6307
6308static sd_chain_struct *
6309create_new_space (name, spnum, loadable, defined, private,
6310 sort, seg, user_defined)
6311 char *name;
6312 int spnum;
6313 int loadable;
6314 int defined;
6315 int private;
6316 int sort;
6317 asection *seg;
6318 int user_defined;
6319{
6320 sd_chain_struct *chain_entry;
6321
6322 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
6323 if (!chain_entry)
6324 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6325 name);
6326
6327 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
6328 strcpy (SPACE_NAME (chain_entry), name);
6329 SPACE_DEFINED (chain_entry) = defined;
6330 SPACE_USER_DEFINED (chain_entry) = user_defined;
6331 SPACE_SPNUM (chain_entry) = spnum;
6332
6333 chain_entry->sd_seg = seg;
6334 chain_entry->sd_last_subseg = -1;
6335 chain_entry->sd_subspaces = NULL;
6336 chain_entry->sd_next = NULL;
6337
6338 /* Find spot for the new space based on its sort key. */
6339 if (!space_dict_last)
6340 space_dict_last = chain_entry;
6341
6342 if (space_dict_root == NULL)
6343 space_dict_root = chain_entry;
6344 else
6345 {
6346 sd_chain_struct *chain_pointer;
6347 sd_chain_struct *prev_chain_pointer;
6348
6349 chain_pointer = space_dict_root;
6350 prev_chain_pointer = NULL;
6351
6352 while (chain_pointer)
6353 {
6354 prev_chain_pointer = chain_pointer;
6355 chain_pointer = chain_pointer->sd_next;
6356 }
6357
6358 /* At this point we've found the correct place to add the new
6359 entry. So add it and update the linked lists as appropriate. */
6360 if (prev_chain_pointer)
6361 {
6362 chain_entry->sd_next = chain_pointer;
6363 prev_chain_pointer->sd_next = chain_entry;
6364 }
6365 else
6366 {
6367 space_dict_root = chain_entry;
6368 chain_entry->sd_next = chain_pointer;
6369 }
6370
6371 if (chain_entry->sd_next == NULL)
6372 space_dict_last = chain_entry;
6373 }
6374
6375 /* This is here to catch predefined spaces which do not get
6376 modified by the user's input. Another call is found at
6377 the bottom of pa_parse_space_stmt to handle cases where
6378 the user modifies a predefined space. */
6379#ifdef obj_set_section_attributes
6380 obj_set_section_attributes (seg, defined, private, sort, spnum);
6381#endif
6382
6383 return chain_entry;
6384}
6385
6386/* Create a new subspace NAME, with the appropriate flags as defined
6387 by the given parameters.
6388
6389 Add the new subspace to the subspace dictionary chain in numerical
6390 order as defined by the SORT entries. */
6391
6392static ssd_chain_struct *
6393create_new_subspace (space, name, loadable, code_only, common,
6394 dup_common, is_zero, sort, access, space_index,
6395 alignment, quadrant, seg)
6396 sd_chain_struct *space;
6397 char *name;
6398 int loadable, code_only, common, dup_common, is_zero;
6399 int sort;
6400 int access;
6401 int space_index;
6402 int alignment;
6403 int quadrant;
6404 asection *seg;
6405{
6406 ssd_chain_struct *chain_entry;
6407
6408 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
6409 if (!chain_entry)
6410 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name);
6411
6412 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
6413 strcpy (SUBSPACE_NAME (chain_entry), name);
6414
6415 /* Initialize subspace_defined. When we hit a .subspace directive
6416 we'll set it to 1 which "locks-in" the subspace attributes. */
6417 SUBSPACE_DEFINED (chain_entry) = 0;
6418
49863f82 6419 chain_entry->ssd_subseg = 0;
252b5132
RH		 6420 chain_entry->ssd_seg = seg;
6421 chain_entry->ssd_next = NULL;
6422
6423 /* Find spot for the new subspace based on its sort key. */
6424 if (space->sd_subspaces == NULL)
6425 space->sd_subspaces = chain_entry;
6426 else
6427 {
6428 ssd_chain_struct *chain_pointer;
6429 ssd_chain_struct *prev_chain_pointer;
6430
6431 chain_pointer = space->sd_subspaces;
6432 prev_chain_pointer = NULL;
6433
6434 while (chain_pointer)
6435 {
6436 prev_chain_pointer = chain_pointer;
6437 chain_pointer = chain_pointer->ssd_next;
6438 }
6439
6440 /* Now we have somewhere to put the new entry. Insert it and update
6441 the links. */
6442 if (prev_chain_pointer)
6443 {
6444 chain_entry->ssd_next = chain_pointer;
6445 prev_chain_pointer->ssd_next = chain_entry;
6446 }
6447 else
6448 {
6449 space->sd_subspaces = chain_entry;
6450 chain_entry->ssd_next = chain_pointer;
6451 }
6452 }
6453
6454#ifdef obj_set_subsection_attributes
6455 obj_set_subsection_attributes (seg, space->sd_seg, access,
6456 sort, quadrant);
6457#endif
6458
6459 return chain_entry;
6460}
6461
6462/* Update the information for the given subspace based upon the
6463 various arguments. Return the modified subspace chain entry. */
6464
6465static ssd_chain_struct *
6466update_subspace (space, name, loadable, code_only, common, dup_common, sort,
6467 zero, access, space_index, alignment, quadrant, section)
6468 sd_chain_struct *space;
6469 char *name;
6470 int loadable;
6471 int code_only;
6472 int common;
6473 int dup_common;
6474 int zero;
6475 int sort;
6476 int access;
6477 int space_index;
6478 int alignment;
6479 int quadrant;
6480 asection *section;
6481{
6482 ssd_chain_struct *chain_entry;
6483
6484 chain_entry = is_defined_subspace (name);
6485
6486#ifdef obj_set_subsection_attributes
6487 obj_set_subsection_attributes (section, space->sd_seg, access,
6488 sort, quadrant);
6489#endif
6490
6491 return chain_entry;
6492}
6493
6494/* Return the space chain entry for the space with the name NAME or
6495 NULL if no such space exists. */
6496
6497static sd_chain_struct *
6498is_defined_space (name)
6499 char *name;
6500{
6501 sd_chain_struct *chain_pointer;
6502
6503 for (chain_pointer = space_dict_root;
6504 chain_pointer;
6505 chain_pointer = chain_pointer->sd_next)
6506 {
6507 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
6508 return chain_pointer;
6509 }
6510
6511 /* No mapping from segment to space was found. Return NULL. */
6512 return NULL;
6513}
6514
6515/* Find and return the space associated with the given seg. If no mapping
6516 from the given seg to a space is found, then return NULL.
6517
6518 Unlike subspaces, the number of spaces is not expected to grow much,
6519 so a linear exhaustive search is OK here. */
6520
6521static sd_chain_struct *
6522pa_segment_to_space (seg)
6523 asection *seg;
6524{
6525 sd_chain_struct *space_chain;
6526
6527 /* Walk through each space looking for the correct mapping. */
6528 for (space_chain = space_dict_root;
6529 space_chain;
6530 space_chain = space_chain->sd_next)
6531 {
6532 if (space_chain->sd_seg == seg)
6533 return space_chain;
6534 }
6535
6536 /* Mapping was not found. Return NULL. */
6537 return NULL;
6538}
6539
6540/* Return the space chain entry for the subspace with the name NAME or
6541 NULL if no such subspace exists.
6542
6543 Uses a linear search through all the spaces and subspaces, this may
6544 not be appropriate if we ever being placing each function in its
6545 own subspace. */
6546
6547static ssd_chain_struct *
6548is_defined_subspace (name)
6549 char *name;
6550{
6551 sd_chain_struct *space_chain;
6552 ssd_chain_struct *subspace_chain;
6553
6554 /* Walk through each space. */
6555 for (space_chain = space_dict_root;
6556 space_chain;
6557 space_chain = space_chain->sd_next)
6558 {
6559 /* Walk through each subspace looking for a name which matches. */
6560 for (subspace_chain = space_chain->sd_subspaces;
6561 subspace_chain;
6562 subspace_chain = subspace_chain->ssd_next)
6563 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
6564 return subspace_chain;
6565 }
6566
6567 /* Subspace wasn't found. Return NULL. */
6568 return NULL;
6569}
6570
6571/* Find and return the subspace associated with the given seg. If no
6572 mapping from the given seg to a subspace is found, then return NULL.
6573
6574 If we ever put each procedure/function within its own subspace
6575 (to make life easier on the compiler and linker), then this will have
6576 to become more efficient. */
6577
6578static ssd_chain_struct *
6579pa_subsegment_to_subspace (seg, subseg)
6580 asection *seg;
6581 subsegT subseg;
6582{
6583 sd_chain_struct *space_chain;
6584 ssd_chain_struct *subspace_chain;
6585
6586 /* Walk through each space. */
6587 for (space_chain = space_dict_root;
6588 space_chain;
6589 space_chain = space_chain->sd_next)
6590 {
6591 if (space_chain->sd_seg == seg)
6592 {
6593 /* Walk through each subspace within each space looking for
6594 the correct mapping. */
6595 for (subspace_chain = space_chain->sd_subspaces;
6596 subspace_chain;
6597 subspace_chain = subspace_chain->ssd_next)
6598 if (subspace_chain->ssd_subseg == (int) subseg)
6599 return subspace_chain;
6600 }
6601 }
6602
6603 /* No mapping from subsegment to subspace found. Return NULL. */
6604 return NULL;
6605}
6606
6607/* Given a number, try and find a space with the name number.
6608
6609 Return a pointer to a space dictionary chain entry for the space
6610 that was found or NULL on failure. */
6611
6612static sd_chain_struct *
6613pa_find_space_by_number (number)
6614 int number;
6615{
6616 sd_chain_struct *space_chain;
6617
6618 for (space_chain = space_dict_root;
6619 space_chain;
6620 space_chain = space_chain->sd_next)
6621 {
6622 if (SPACE_SPNUM (space_chain) == (unsigned int) number)
6623 return space_chain;
6624 }
6625
6626 /* No appropriate space found. Return NULL. */
6627 return NULL;
6628}
6629
6630/* Return the starting address for the given subspace. If the starting
6631 address is unknown then return zero. */
6632
6633static unsigned int
6634pa_subspace_start (space, quadrant)
6635 sd_chain_struct *space;
6636 int quadrant;
6637{
252b5132
RH		 6638 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6639 is not correct for the PA OSF1 port. */
6640 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
6641 return 0x40000000;
6642 else if (space->sd_seg == data_section && quadrant == 1)
6643 return 0x40000000;
6644 else
6645 return 0;
252b5132
RH		 6646 return 0;
6647}
6648
6649/* FIXME. Needs documentation. */
6650static int
6651pa_next_subseg (space)
6652 sd_chain_struct *space;
6653{
6654
6655 space->sd_last_subseg++;
6656 return space->sd_last_subseg;
6657}
49863f82 6658#endif
252b5132
RH		 6659
6660/* Helper function for pa_stringer. Used to find the end of
6661 a string. */
6662
6663static unsigned int
6664pa_stringer_aux (s)
6665 char *s;
6666{
6667 unsigned int c = *s & CHAR_MASK;
6668
49863f82 6669#ifdef OBJ_SOM
252b5132
RH		 6670 /* We must have a valid space and subspace. */
6671 pa_check_current_space_and_subspace ();
49863f82 6672#endif
252b5132
RH		 6673
6674 switch (c)
6675 {
6676 case '\"':
6677 c = NOT_A_CHAR;
6678 break;
6679 default:
6680 break;
6681 }
6682 return c;
6683}
6684
6685/* Handle a .STRING type pseudo-op. */
6686
6687static void
6688pa_stringer (append_zero)
6689 int append_zero;
6690{
6691 char *s, num_buf[4];
6692 unsigned int c;
6693 int i;
6694
6695 /* Preprocess the string to handle PA-specific escape sequences.
6696 For example, \xDD where DD is a hexidecimal number should be
6697 changed to \OOO where OOO is an octal number. */
6698
6699 /* Skip the opening quote. */
6700 s = input_line_pointer + 1;
6701
6702 while (is_a_char (c = pa_stringer_aux (s++)))
6703 {
6704 if (c == '\\')
6705 {
6706 c = *s;
6707 switch (c)
6708 {
6709 /* Handle \x<num>. */
6710 case 'x':
6711 {
6712 unsigned int number;
6713 int num_digit;
6714 char dg;
6715 char *s_start = s;
6716
6717 /* Get pas the 'x'. */
6718 s++;
6719 for (num_digit = 0, number = 0, dg = *s;
6720 num_digit < 2
6721 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
6722 || (dg >= 'A' && dg <= 'F'));
6723 num_digit++)
6724 {
6725 if (isdigit (dg))
6726 number = number * 16 + dg - '0';
6727 else if (dg >= 'a' && dg <= 'f')
6728 number = number * 16 + dg - 'a' + 10;
6729 else
6730 number = number * 16 + dg - 'A' + 10;
6731
6732 s++;
6733 dg = *s;
6734 }
6735 if (num_digit > 0)
6736 {
6737 switch (num_digit)
6738 {
6739 case 1:
6740 sprintf (num_buf, "%02o", number);
6741 break;
6742 case 2:
6743 sprintf (num_buf, "%03o", number);
6744 break;
6745 }
6746 for (i = 0; i <= num_digit; i++)
6747 s_start[i] = num_buf[i];
6748 }
6749 break;
6750 }
6751 /* This might be a "\"", skip over the escaped char. */
6752 default:
6753 s++;
6754 break;
6755 }
6756 }
6757 }
6758 stringer (append_zero);
6759 pa_undefine_label ();
6760}
6761
6762/* Handle a .VERSION pseudo-op. */
6763
6764static void
6765pa_version (unused)
6766 int unused;
6767{
6768 obj_version (0);
6769 pa_undefine_label ();
6770}
6771
6772#ifdef OBJ_SOM
6773
6774/* Handle a .COMPILER pseudo-op. */
6775
6776static void
6777pa_compiler (unused)
6778 int unused;
6779{
6780 obj_som_compiler (0);
6781 pa_undefine_label ();
6782}
6783
6784#endif
6785
6786/* Handle a .COPYRIGHT pseudo-op. */
6787
6788static void
6789pa_copyright (unused)
6790 int unused;
6791{
6792 obj_copyright (0);
6793 pa_undefine_label ();
6794}
6795
6796/* Just like a normal cons, but when finished we have to undefine
6797 the latest space label. */
6798
6799static void
6800pa_cons (nbytes)
6801 int nbytes;
6802{
6803 cons (nbytes);
6804 pa_undefine_label ();
6805}
6806
6807/* Switch to the data space. As usual delete our label. */
6808
6809static void
6810pa_data (unused)
6811 int unused;
6812{
49863f82 6813#ifdef OBJ_SOM
252b5132
RH		 6814 current_space = is_defined_space ("$PRIVATE$");
6815 current_subspace
6816 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 6817#endif
252b5132
RH		 6818 s_data (0);
6819 pa_undefine_label ();
6820}
6821
6822/* Like float_cons, but we need to undefine our label. */
6823
6824static void
6825pa_float_cons (float_type)
6826 int float_type;
6827{
6828 float_cons (float_type);
6829 pa_undefine_label ();
6830}
6831
6832/* Like s_fill, but delete our label when finished. */
6833
6834static void
6835pa_fill (unused)
6836 int unused;
6837{
49863f82 6838#ifdef OBJ_SOM
252b5132
RH		 6839 /* We must have a valid space and subspace. */
6840 pa_check_current_space_and_subspace ();
49863f82 6841#endif
252b5132
RH		 6842
6843 s_fill (0);
6844 pa_undefine_label ();
6845}
6846
6847/* Like lcomm, but delete our label when finished. */
6848
6849static void
6850pa_lcomm (needs_align)
6851 int needs_align;
6852{
49863f82 6853#ifdef OBJ_SOM
252b5132
RH		 6854 /* We must have a valid space and subspace. */
6855 pa_check_current_space_and_subspace ();
49863f82 6856#endif
252b5132
RH		 6857
6858 s_lcomm (needs_align);
6859 pa_undefine_label ();
6860}
6861
6862/* Like lsym, but delete our label when finished. */
6863
6864static void
6865pa_lsym (unused)
6866 int unused;
6867{
49863f82 6868#ifdef OBJ_SOM
252b5132
RH		 6869 /* We must have a valid space and subspace. */
6870 pa_check_current_space_and_subspace ();
49863f82 6871#endif
252b5132
RH		 6872
6873 s_lsym (0);
6874 pa_undefine_label ();
6875}
6876
6877/* Switch to the text space. Like s_text, but delete our
6878 label when finished. */
6879static void
6880pa_text (unused)
6881 int unused;
6882{
49863f82 6883#ifdef OBJ_SOM
252b5132
RH		 6884 current_space = is_defined_space ("$TEXT$");
6885 current_subspace
6886 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 6887#endif
252b5132
RH		 6888
6889 s_text (0);
6890 pa_undefine_label ();
6891}
6892
6893/* On the PA relocations which involve function symbols must not be
6894 adjusted. This so that the linker can know when/how to create argument
6895 relocation stubs for indirect calls and calls to static functions.
6896
6897 "T" field selectors create DLT relative fixups for accessing
6898 globals and statics in PIC code; each DLT relative fixup creates
6899 an entry in the DLT table. The entries contain the address of
6900 the final target (eg accessing "foo" would create a DLT entry
6901 with the address of "foo").
6902
6903 Unfortunately, the HP linker doesn't take into account any addend
6904 when generating the DLT; so accessing $LIT$+8 puts the address of
6905 $LIT$ into the DLT rather than the address of $LIT$+8.
6906
6907 The end result is we can't perform relocation symbol reductions for
6908 any fixup which creates entries in the DLT (eg they use "T" field
6909 selectors).
6910
6911 Reject reductions involving symbols with external scope; such
6912 reductions make life a living hell for object file editors.
6913
6914 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6915 the code space. The SOM BFD backend doesn't know how to pull the
6916 right bits out of an instruction. */
6917
6918int
6919hppa_fix_adjustable (fixp)
6920 fixS *fixp;
6921{
6922 struct hppa_fix_struct *hppa_fix;
6923
6924 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
6925
6926#ifdef OBJ_SOM
6927 /* Reject reductions of symbols in 32bit relocs. */
6928 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
6929 return 0;
6930
6931 /* Reject reductions of symbols in sym1-sym2 expressions when
6932 the fixup will occur in a CODE subspace.
6933
6934 XXX FIXME: Long term we probably want to reject all of these;
6935 for example reducing in the debug section would lose if we ever
6936 supported using the optimizing hp linker. */
6937 if (fixp->fx_addsy
6938 && fixp->fx_subsy
6939 && (hppa_fix->segment->flags & SEC_CODE))
6940 {
6941 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
398e8c25 6942 symbol_mark_used_in_reloc (fixp->fx_subsy);
252b5132
RH		 6943 return 0;
6944 }
6945
6946 /* We can't adjust any relocs that use LR% and RR% field selectors.
6947 That confuses the HP linker. */
6948 if (hppa_fix->fx_r_field == e_lrsel
6949 || hppa_fix->fx_r_field == e_rrsel
6950 || hppa_fix->fx_r_field == e_nlrsel)
6951 return 0;
6952#endif
6953
6954 /* Reject reductions of symbols in DLT relative relocs,
6955 relocations with plabels. */
6956 if (hppa_fix->fx_r_field == e_tsel
6957 || hppa_fix->fx_r_field == e_ltsel
6958 || hppa_fix->fx_r_field == e_rtsel
6959 || hppa_fix->fx_r_field == e_psel
6960 || hppa_fix->fx_r_field == e_rpsel
6961 || hppa_fix->fx_r_field == e_lpsel)
6962 return 0;
6963
a0f75b47 6964 if (fixp->fx_addsy && S_IS_EXTERNAL (fixp->fx_addsy))
252b5132
RH		 6965 return 0;
6966
6967 /* Reject absolute calls (jumps). */
6968 if (hppa_fix->fx_r_type == R_HPPA_ABS_CALL)
6969 return 0;
6970
6971 /* Reject reductions of function symbols. */
a0f75b47 6972 if (fixp->fx_addsy == 0 || ! S_IS_FUNCTION (fixp->fx_addsy))
252b5132
RH		 6973 return 1;
6974
6975 return 0;
6976}
6977
6978/* Return nonzero if the fixup in FIXP will require a relocation,
6979 even it if appears that the fixup could be completely handled
6980 within GAS. */
6981
6982int
6983hppa_force_relocation (fixp)
6984 fixS *fixp;
6985{
6986 struct hppa_fix_struct *hppa_fixp;
6987 int distance;
6988
6989 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
6990#ifdef OBJ_SOM
6991 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT
6992 || fixp->fx_r_type == R_HPPA_BEGIN_BRTAB
6993 || fixp->fx_r_type == R_HPPA_END_BRTAB
6994 || fixp->fx_r_type == R_HPPA_BEGIN_TRY
6995 || fixp->fx_r_type == R_HPPA_END_TRY
6996 || (fixp->fx_addsy != NULL && fixp->fx_subsy != NULL
6997 && (hppa_fixp->segment->flags & SEC_CODE) != 0))
6998 return 1;
6999#endif
7000
7001#define arg_reloc_stub_needed(CALLER, CALLEE) \
7002 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7003
49863f82 7004#ifdef OBJ_SOM
252b5132
RH		 7005 /* It is necessary to force PC-relative calls/jumps to have a relocation
7006 entry if they're going to need either a argument relocation or long
7007 call stub. FIXME. Can't we need the same for absolute calls? */
7008 if (fixp->fx_pcrel && fixp->fx_addsy
7009 && (arg_reloc_stub_needed ((long) ((obj_symbol_type *)
a0f75b47
ILT		 7010 symbol_get_bfdsym (fixp->fx_addsy))->tc_data.ap.hppa_arg_reloc,
7011 hppa_fixp->fx_arg_reloc)))
252b5132 7012 return 1;
49863f82 7013#endif
252b5132
RH		 7014 distance = (fixp->fx_offset + S_GET_VALUE (fixp->fx_addsy)
7015 - md_pcrel_from (fixp));
7016 /* Now check and see if we're going to need a long-branch stub. */
7017 if (fixp->fx_r_type == R_HPPA_PCREL_CALL
7018 && (distance > 262143 || distance < -262144))
7019 return 1;
7020
7021 if (fixp->fx_r_type == R_HPPA_ABS_CALL)
7022 return 1;
7023#undef arg_reloc_stub_needed
7024
7025 /* No need (yet) to force another relocations to be emitted. */
7026 return 0;
7027}
7028
7029/* Now for some ELF specific code. FIXME. */
7030#ifdef OBJ_ELF
7031/* Mark the end of a function so that it's possible to compute
7032 the size of the function in hppa_elf_final_processing. */
7033
7034static void
7035hppa_elf_mark_end_of_function ()
7036{
7037 /* ELF does not have EXIT relocations. All we do is create a
7038 temporary symbol marking the end of the function. */
7039 char *name = (char *)
7040 xmalloc (strlen ("L$\001end_") +
7041 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
7042
7043 if (name)
7044 {
7045 symbolS *symbolP;
7046
7047 strcpy (name, "L$\001end_");
7048 strcat (name, S_GET_NAME (last_call_info->start_symbol));
7049
7050 /* If we have a .exit followed by a .procend, then the
7051 symbol will have already been defined. */
7052 symbolP = symbol_find (name);
7053 if (symbolP)
7054 {
7055 /* The symbol has already been defined! This can
7056 happen if we have a .exit followed by a .procend.
7057
7058 This is *not* an error. All we want to do is free
7059 the memory we just allocated for the name and continue. */
7060 xfree (name);
7061 }
7062 else
7063 {
7064 /* symbol value should be the offset of the
7065 last instruction of the function */
7066 symbolP = symbol_new (name, now_seg, (valueT) (frag_now_fix () - 4),
7067 frag_now);
7068
7069 assert (symbolP);
a0f75b47 7070 S_CLEAR_EXTERNAL (symbolP);
252b5132
RH		 7071 symbol_table_insert (symbolP);
7072 }
7073
7074 if (symbolP)
7075 last_call_info->end_symbol = symbolP;
7076 else
7077 as_bad (_("Symbol '%s' could not be created."), name);
7078
7079 }
7080 else
7081 as_bad (_("No memory for symbol name."));
7082
7083}
7084
7085/* For ELF, this function serves one purpose: to setup the st_size
7086 field of STT_FUNC symbols. To do this, we need to scan the
7087 call_info structure list, determining st_size in by taking the
7088 difference in the address of the beginning/end marker symbols. */
7089
7090void
7091elf_hppa_final_processing ()
7092{
7093 struct call_info *call_info_pointer;
7094
7095 for (call_info_pointer = call_info_root;
7096 call_info_pointer;
7097 call_info_pointer = call_info_pointer->ci_next)
7098 {
7099 elf_symbol_type *esym
a0f75b47
ILT		 7100 = ((elf_symbol_type *)
7101 symbol_get_bfdsym (call_info_pointer->start_symbol));
252b5132
RH		 7102 esym->internal_elf_sym.st_size =
7103 S_GET_VALUE (call_info_pointer->end_symbol)
7104 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
7105 }
7106}
7107#endif
GDB Binutils - Deliverables
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