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Fix typo in last change.
[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
0f4f8b56
JL		 720/* Nonzero when strict syntax checking is enabled. Zero otherwise.
721
722 Each opcode in the table has a flag which indicates whether or not
723 strict syntax checking should be enabled for that instruction. */
724static int strict = 0;
725
993142d5 726#ifdef OBJ_SOM
252b5132
RH		 727/* A dummy bfd symbol so that all relocations have symbols of some kind. */
728static symbolS *dummy_symbol;
993142d5 729#endif
252b5132
RH		 730
731/* Nonzero if errors are to be printed. */
732static int print_errors = 1;
733
734/* List of registers that are pre-defined:
735
736 Each general register has one predefined name of the form
737 %r<REGNUM> which has the value <REGNUM>.
738
739 Space and control registers are handled in a similar manner,
740 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
741
742 Likewise for the floating point registers, but of the form
743 %fr<REGNUM>. Floating point registers have additional predefined
744 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
745 again have the value <REGNUM>.
746
747 Many registers also have synonyms:
748
749 %r26 - %r23 have %arg0 - %arg3 as synonyms
750 %r28 - %r29 have %ret0 - %ret1 as synonyms
751 %r30 has %sp as a synonym
752 %r27 has %dp as a synonym
753 %r2 has %rp as a synonym
754
755 Almost every control register has a synonym; they are not listed
756 here for brevity.
757
758 The table is sorted. Suitable for searching by a binary search. */
759
760static const struct pd_reg pre_defined_registers[] =
761{
762 {"%arg0", 26},
763 {"%arg1", 25},
764 {"%arg2", 24},
765 {"%arg3", 23},
766 {"%cr0", 0},
767 {"%cr10", 10},
768 {"%cr11", 11},
769 {"%cr12", 12},
770 {"%cr13", 13},
771 {"%cr14", 14},
772 {"%cr15", 15},
773 {"%cr16", 16},
774 {"%cr17", 17},
775 {"%cr18", 18},
776 {"%cr19", 19},
777 {"%cr20", 20},
778 {"%cr21", 21},
779 {"%cr22", 22},
780 {"%cr23", 23},
781 {"%cr24", 24},
782 {"%cr25", 25},
783 {"%cr26", 26},
784 {"%cr27", 27},
785 {"%cr28", 28},
786 {"%cr29", 29},
787 {"%cr30", 30},
788 {"%cr31", 31},
789 {"%cr8", 8},
790 {"%cr9", 9},
791 {"%dp", 27},
792 {"%eiem", 15},
793 {"%eirr", 23},
794 {"%fr0", 0},
795 {"%fr0l", 0},
796 {"%fr0r", 0},
797 {"%fr1", 1},
798 {"%fr10", 10},
799 {"%fr10l", 10},
800 {"%fr10r", 10},
801 {"%fr11", 11},
802 {"%fr11l", 11},
803 {"%fr11r", 11},
804 {"%fr12", 12},
805 {"%fr12l", 12},
806 {"%fr12r", 12},
807 {"%fr13", 13},
808 {"%fr13l", 13},
809 {"%fr13r", 13},
810 {"%fr14", 14},
811 {"%fr14l", 14},
812 {"%fr14r", 14},
813 {"%fr15", 15},
814 {"%fr15l", 15},
815 {"%fr15r", 15},
816 {"%fr16", 16},
817 {"%fr16l", 16},
818 {"%fr16r", 16},
819 {"%fr17", 17},
820 {"%fr17l", 17},
821 {"%fr17r", 17},
822 {"%fr18", 18},
823 {"%fr18l", 18},
824 {"%fr18r", 18},
825 {"%fr19", 19},
826 {"%fr19l", 19},
827 {"%fr19r", 19},
828 {"%fr1l", 1},
829 {"%fr1r", 1},
830 {"%fr2", 2},
831 {"%fr20", 20},
832 {"%fr20l", 20},
833 {"%fr20r", 20},
834 {"%fr21", 21},
835 {"%fr21l", 21},
836 {"%fr21r", 21},
837 {"%fr22", 22},
838 {"%fr22l", 22},
839 {"%fr22r", 22},
840 {"%fr23", 23},
841 {"%fr23l", 23},
842 {"%fr23r", 23},
843 {"%fr24", 24},
844 {"%fr24l", 24},
845 {"%fr24r", 24},
846 {"%fr25", 25},
847 {"%fr25l", 25},
848 {"%fr25r", 25},
849 {"%fr26", 26},
850 {"%fr26l", 26},
851 {"%fr26r", 26},
852 {"%fr27", 27},
853 {"%fr27l", 27},
854 {"%fr27r", 27},
855 {"%fr28", 28},
856 {"%fr28l", 28},
857 {"%fr28r", 28},
858 {"%fr29", 29},
859 {"%fr29l", 29},
860 {"%fr29r", 29},
861 {"%fr2l", 2},
862 {"%fr2r", 2},
863 {"%fr3", 3},
864 {"%fr30", 30},
865 {"%fr30l", 30},
866 {"%fr30r", 30},
867 {"%fr31", 31},
868 {"%fr31l", 31},
869 {"%fr31r", 31},
870 {"%fr3l", 3},
871 {"%fr3r", 3},
872 {"%fr4", 4},
873 {"%fr4l", 4},
874 {"%fr4r", 4},
875 {"%fr5", 5},
876 {"%fr5l", 5},
877 {"%fr5r", 5},
878 {"%fr6", 6},
879 {"%fr6l", 6},
880 {"%fr6r", 6},
881 {"%fr7", 7},
882 {"%fr7l", 7},
883 {"%fr7r", 7},
884 {"%fr8", 8},
885 {"%fr8l", 8},
886 {"%fr8r", 8},
887 {"%fr9", 9},
888 {"%fr9l", 9},
889 {"%fr9r", 9},
890 {"%hta", 25},
891 {"%iir", 19},
892 {"%ior", 21},
893 {"%ipsw", 22},
894 {"%isr", 20},
895 {"%itmr", 16},
896 {"%iva", 14},
897 {"%pcoq", 18},
898 {"%pcsq", 17},
899 {"%pidr1", 8},
900 {"%pidr2", 9},
901 {"%pidr3", 12},
902 {"%pidr4", 13},
903 {"%ppda", 24},
904 {"%r0", 0},
905 {"%r1", 1},
906 {"%r10", 10},
907 {"%r11", 11},
908 {"%r12", 12},
909 {"%r13", 13},
910 {"%r14", 14},
911 {"%r15", 15},
912 {"%r16", 16},
913 {"%r17", 17},
914 {"%r18", 18},
915 {"%r19", 19},
916 {"%r2", 2},
917 {"%r20", 20},
918 {"%r21", 21},
919 {"%r22", 22},
920 {"%r23", 23},
921 {"%r24", 24},
922 {"%r25", 25},
923 {"%r26", 26},
924 {"%r27", 27},
925 {"%r28", 28},
926 {"%r29", 29},
927 {"%r3", 3},
928 {"%r30", 30},
929 {"%r31", 31},
930 {"%r4", 4},
931 {"%r5", 5},
932 {"%r6", 6},
933 {"%r7", 7},
934 {"%r8", 8},
935 {"%r9", 9},
936 {"%rctr", 0},
937 {"%ret0", 28},
938 {"%ret1", 29},
939 {"%rp", 2},
940 {"%sar", 11},
941 {"%sp", 30},
942 {"%sr0", 0},
943 {"%sr1", 1},
944 {"%sr2", 2},
945 {"%sr3", 3},
946 {"%sr4", 4},
947 {"%sr5", 5},
948 {"%sr6", 6},
949 {"%sr7", 7},
950 {"%tr0", 24},
951 {"%tr1", 25},
952 {"%tr2", 26},
953 {"%tr3", 27},
954 {"%tr4", 28},
955 {"%tr5", 29},
956 {"%tr6", 30},
957 {"%tr7", 31}
958};
959
960/* This table is sorted by order of the length of the string. This is
961 so we check for <> before we check for <. If we had a <> and checked
962 for < first, we would get a false match. */
963static const struct fp_cond_map fp_cond_map[] =
964{
965 {"false?", 0},
966 {"false", 1},
967 {"true?", 30},
968 {"true", 31},
969 {"!<=>", 3},
970 {"!?>=", 8},
971 {"!?<=", 16},
972 {"!<>", 7},
973 {"!>=", 11},
974 {"!?>", 12},
975 {"?<=", 14},
976 {"!<=", 19},
977 {"!?<", 20},
978 {"?>=", 22},
979 {"!?=", 24},
980 {"!=t", 27},
981 {"<=>", 29},
982 {"=t", 5},
983 {"?=", 6},
984 {"?<", 10},
985 {"<=", 13},
986 {"!>", 15},
987 {"?>", 18},
988 {">=", 21},
989 {"!<", 23},
990 {"<>", 25},
991 {"!=", 26},
992 {"!?", 28},
993 {"?", 2},
994 {"=", 4},
995 {"<", 9},
996 {">", 17}
997};
998
999static const struct selector_entry selector_table[] =
1000{
1001 {"f", e_fsel},
1002 {"l", e_lsel},
1003 {"ld", e_ldsel},
1004 {"lp", e_lpsel},
1005 {"lr", e_lrsel},
1006 {"ls", e_lssel},
1007 {"lt", e_ltsel},
39ba5561 1008 {"ltp", e_ltpsel},
252b5132
RH		 1009 {"n", e_nsel},
1010 {"nl", e_nlsel},
1011 {"nlr", e_nlrsel},
1012 {"p", e_psel},
1013 {"r", e_rsel},
1014 {"rd", e_rdsel},
1015 {"rp", e_rpsel},
1016 {"rr", e_rrsel},
1017 {"rs", e_rssel},
1018 {"rt", e_rtsel},
39ba5561 1019 {"rtp", e_rtpsel},
252b5132
RH		 1020 {"t", e_tsel},
1021};
1022
49863f82 1023#ifdef OBJ_SOM
252b5132
RH		 1024/* default space and subspace dictionaries */
1025
1026#define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1027#define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1028
1029/* pre-defined subsegments (subspaces) for the HPPA. */
1030#define SUBSEG_CODE 0
1031#define SUBSEG_LIT 1
1032#define SUBSEG_MILLI 2
1033#define SUBSEG_DATA 0
1034#define SUBSEG_BSS 2
1035#define SUBSEG_UNWIND 3
1036#define SUBSEG_GDB_STRINGS 0
1037#define SUBSEG_GDB_SYMBOLS 1
1038
1039static struct default_subspace_dict pa_def_subspaces[] =
1040{
49863f82
JL		 1041 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE},
1042 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA},
1043 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT},
1044 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI},
1045 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS},
252b5132
RH		 1046 {NULL, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1047};
1048
1049static struct default_space_dict pa_def_spaces[] =
1050{
49863f82
JL		 1051 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL},
1052 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL},
1053 {NULL, 0, 0, 0, 0, 0, ASEC_NULL}
252b5132
RH		 1054};
1055
1056/* Misc local definitions used by the assembler. */
1057
252b5132
RH		 1058/* These macros are used to maintain spaces/subspaces. */
1059#define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1060#define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1061#define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1062#define SPACE_NAME(space_chain) (space_chain)->sd_name
1063
1064#define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1065#define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
49863f82
JL		 1066#endif
1067
1068/* Return nonzero if the string pointed to by S potentially represents
1069 a right or left half of a FP register */
1070#define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1071#define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
252b5132
RH		 1072
1073/* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1074 main loop after insertion. */
1075
1076#define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1077 { \
1078 ((OPCODE) |= (FIELD) << (START)); \
1079 continue; \
1080 }
1081
1082/* Simple range checking for FIELD againt HIGH and LOW bounds.
1083 IGNORE is used to suppress the error message. */
1084
1085#define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1086 { \
1087 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1088 { \
1089 if (! IGNORE) \
1090 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1091 (int) (FIELD));\
1092 break; \
1093 } \
1094 }
1095
1096#define is_DP_relative(exp) \
1097 ((exp).X_op == O_subtract \
a0f75b47 1098 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
252b5132
RH		 1099
1100#define is_PC_relative(exp) \
1101 ((exp).X_op == O_subtract \
a0f75b47 1102 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
252b5132
RH		 1103
1104/* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1105 always be able to reduce the expression to a constant, so we don't
1106 need real complex handling yet. */
1107#define is_complex(exp) \
1108 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1109
1110/* Actual functions to implement the PA specific code for the assembler. */
1111
1112/* Called before writing the object file. Make sure entry/exit and
1113 proc/procend pairs match. */
1114
1115void
1116pa_check_eof ()
1117{
1118 if (within_entry_exit)
1119 as_fatal (_("Missing .exit\n"));
1120
1121 if (within_procedure)
1122 as_fatal (_("Missing .procend\n"));
1123}
1124
252b5132
RH		 1125/* Returns a pointer to the label_symbol_struct for the current space.
1126 or NULL if no label_symbol_struct exists for the current space. */
1127
1128static label_symbol_struct *
1129pa_get_label ()
1130{
1131 label_symbol_struct *label_chain;
252b5132
RH		 1132
1133 for (label_chain = label_symbols_rootp;
1134 label_chain;
1135 label_chain = label_chain->lss_next)
49863f82
JL		 1136 {
1137#ifdef OBJ_SOM
1138 if (current_space == label_chain->lss_space && label_chain->lss_label)
1139 return label_chain;
1140#endif
1141#ifdef OBJ_ELF
1142 if (now_seg == label_chain->lss_segment && label_chain->lss_label)
252b5132 1143 return label_chain;
49863f82
JL		 1144#endif
1145 }
252b5132
RH		 1146
1147 return NULL;
1148}
1149
1150/* Defines a label for the current space. If one is already defined,
1151 this function will replace it with the new label. */
1152
1153void
1154pa_define_label (symbol)
1155 symbolS *symbol;
1156{
1157 label_symbol_struct *label_chain = pa_get_label ();
252b5132
RH		 1158
1159 if (label_chain)
1160 label_chain->lss_label = symbol;
1161 else
1162 {
1163 /* Create a new label entry and add it to the head of the chain. */
1164 label_chain
1165 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1166 label_chain->lss_label = symbol;
49863f82
JL		 1167#ifdef OBJ_SOM
1168 label_chain->lss_space = current_space;
1169#endif
1170#ifdef OBJ_ELF
1171 label_chain->lss_segment = now_seg;
1172#endif
252b5132
RH		 1173 label_chain->lss_next = NULL;
1174
1175 if (label_symbols_rootp)
1176 label_chain->lss_next = label_symbols_rootp;
1177
1178 label_symbols_rootp = label_chain;
1179 }
1180}
1181
1182/* Removes a label definition for the current space.
1183 If there is no label_symbol_struct entry, then no action is taken. */
1184
1185static void
1186pa_undefine_label ()
1187{
1188 label_symbol_struct *label_chain;
1189 label_symbol_struct *prev_label_chain = NULL;
252b5132
RH		 1190
1191 for (label_chain = label_symbols_rootp;
1192 label_chain;
1193 label_chain = label_chain->lss_next)
1194 {
49863f82
JL		 1195 if (1
1196#ifdef OBJ_SOM
1197 && current_space == label_chain->lss_space && label_chain->lss_label
1198#endif
1199#ifdef OBJ_ELF
1200 && now_seg == label_chain->lss_segment && label_chain->lss_label
1201#endif
1202 )
252b5132
RH		 1203 {
1204 /* Remove the label from the chain and free its memory. */
1205 if (prev_label_chain)
1206 prev_label_chain->lss_next = label_chain->lss_next;
1207 else
1208 label_symbols_rootp = label_chain->lss_next;
1209
1210 free (label_chain);
1211 break;
1212 }
1213 prev_label_chain = label_chain;
1214 }
1215}
1216
1217
1218/* An HPPA-specific version of fix_new. This is required because the HPPA
1219 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1220 results in the creation of an instance of an hppa_fix_struct. An
1221 hppa_fix_struct stores the extra information along with a pointer to the
1222 original fixS. This is attached to the original fixup via the
1223 tc_fix_data field. */
1224
1225static void
1226fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
1227 r_type, r_field, r_format, arg_reloc, unwind_bits)
1228 fragS *frag;
1229 int where;
1230 int size;
1231 symbolS *add_symbol;
1232 long offset;
1233 expressionS *exp;
1234 int pcrel;
1235 bfd_reloc_code_real_type r_type;
1236 enum hppa_reloc_field_selector_type_alt r_field;
1237 int r_format;
1238 long arg_reloc;
1239 int* unwind_bits;
1240{
1241 fixS *new_fix;
1242
1243 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
1244 obstack_alloc (&notes, sizeof (struct hppa_fix_struct));
1245
1246 if (exp != NULL)
1247 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1248 else
1249 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
1250 new_fix->tc_fix_data = (void *) hppa_fix;
1251 hppa_fix->fx_r_type = r_type;
1252 hppa_fix->fx_r_field = r_field;
1253 hppa_fix->fx_r_format = r_format;
1254 hppa_fix->fx_arg_reloc = arg_reloc;
1255 hppa_fix->segment = now_seg;
1256#ifdef OBJ_SOM
1257 if (r_type == R_ENTRY || r_type == R_EXIT)
1258 new_fix->fx_offset = *unwind_bits;
1259#endif
1260
1261 /* foo-$global$ is used to access non-automatic storage. $global$
1262 is really just a marker and has served its purpose, so eliminate
1263 it now so as not to confuse write.c. */
1264 if (new_fix->fx_subsy
1265 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
1266 new_fix->fx_subsy = NULL;
1267}
1268
1269/* Parse a .byte, .word, .long expression for the HPPA. Called by
1270 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1271
1272void
1273parse_cons_expression_hppa (exp)
1274 expressionS *exp;
1275{
1276 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
1277 expression (exp);
1278}
1279
1280/* This fix_new is called by cons via TC_CONS_FIX_NEW.
1281 hppa_field_selector is set by the parse_cons_expression_hppa. */
1282
1283void
1284cons_fix_new_hppa (frag, where, size, exp)
1285 fragS *frag;
1286 int where;
1287 int size;
1288 expressionS *exp;
1289{
1290 unsigned int rel_type;
1291
1292 /* Get a base relocation type. */
1293 if (is_DP_relative (*exp))
1294 rel_type = R_HPPA_GOTOFF;
1295 else if (is_complex (*exp))
1296 rel_type = R_HPPA_COMPLEX;
1297 else
1298 rel_type = R_HPPA;
1299
1300 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
1301 as_warn (_("Invalid field selector. Assuming F%%."));
1302
1303 fix_new_hppa (frag, where, size,
1304 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
077db52a 1305 hppa_field_selector, size * 8, 0, NULL);
252b5132
RH		 1306
1307 /* Reset field selector to its default state. */
1308 hppa_field_selector = 0;
1309}
1310
1311/* This function is called once, at assembler startup time. It should
1312 set up all the tables, etc. that the MD part of the assembler will need. */
1313
1314void
1315md_begin ()
1316{
1317 const char *retval = NULL;
1318 int lose = 0;
1319 unsigned int i = 0;
1320
1321 last_call_info = NULL;
1322 call_info_root = NULL;
1323
1324 /* Set the default machine type. */
1325 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
1326 as_warn (_("could not set architecture and machine"));
1327
1328 /* Folding of text and data segments fails miserably on the PA.
1329 Warn user and disable "-R" option. */
1330 if (flag_readonly_data_in_text)
1331 {
1332 as_warn (_("-R option not supported on this target."));
1333 flag_readonly_data_in_text = 0;
1334 }
1335
49863f82 1336#ifdef OBJ_SOM
252b5132 1337 pa_spaces_begin ();
49863f82 1338#endif
252b5132
RH		 1339
1340 op_hash = hash_new ();
1341
1342 while (i < NUMOPCODES)
1343 {
1344 const char *name = pa_opcodes[i].name;
1345 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
1346 if (retval != NULL && *retval != '\0')
1347 {
1348 as_fatal (_("Internal error: can't hash `%s': %s\n"), name, retval);
1349 lose = 1;
1350 }
1351 do
1352 {
1353 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
1354 != pa_opcodes[i].match)
1355 {
1356 fprintf (stderr, _("internal error: losing opcode: `%s' \"%s\"\n"),
1357 pa_opcodes[i].name, pa_opcodes[i].args);
1358 lose = 1;
1359 }
1360 ++i;
1361 }
1362 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
1363 }
1364
1365 if (lose)
1366 as_fatal (_("Broken assembler. No assembly attempted."));
1367
49863f82 1368#ifdef OBJ_SOM
252b5132
RH		 1369 /* SOM will change text_section. To make sure we never put
1370 anything into the old one switch to the new one now. */
1371 subseg_set (text_section, 0);
49863f82 1372#endif
252b5132 1373
993142d5 1374#ifdef OBJ_SOM
252b5132
RH		 1375 dummy_symbol = symbol_find_or_make ("L$dummy");
1376 S_SET_SEGMENT (dummy_symbol, text_section);
993142d5
ILT		 1377 /* Force the symbol to be converted to a real symbol. */
1378 (void) symbol_get_bfdsym (dummy_symbol);
1379#endif
252b5132
RH		 1380}
1381
1382/* Assemble a single instruction storing it into a frag. */
1383void
1384md_assemble (str)
1385 char *str;
1386{
1387 char *to;
1388
1389 /* The had better be something to assemble. */
1390 assert (str);
1391
1392 /* If we are within a procedure definition, make sure we've
1393 defined a label for the procedure; handle case where the
1394 label was defined after the .PROC directive.
1395
1396 Note there's not need to diddle with the segment or fragment
1397 for the label symbol in this case. We have already switched
1398 into the new $CODE$ subspace at this point. */
1399 if (within_procedure && last_call_info->start_symbol == NULL)
1400 {
1401 label_symbol_struct *label_symbol = pa_get_label ();
1402
1403 if (label_symbol)
1404 {
1405 if (label_symbol->lss_label)
1406 {
1407 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47
ILT		 1408 symbol_get_bfdsym (label_symbol->lss_label)->flags
1409 |= BSF_FUNCTION;
252b5132
RH		 1410#ifdef OBJ_SOM
1411 /* Also handle allocation of a fixup to hold the unwind
1412 information when the label appears after the proc/procend. */
1413 if (within_entry_exit)
1414 {
1415 char *where = frag_more (0);
1416
1417 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
1418 NULL, (offsetT) 0, NULL,
1419 0, R_HPPA_ENTRY, e_fsel, 0, 0,
1420 (int *)&last_call_info->ci_unwind.descriptor);
1421 }
1422#endif
1423 }
1424 else
1425 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1426 }
1427 else
1428 as_bad (_("Missing function name for .PROC"));
1429 }
1430
1431 /* Assemble the instruction. Results are saved into "the_insn". */
1432 pa_ip (str);
1433
1434 /* Get somewhere to put the assembled instrution. */
1435 to = frag_more (4);
1436
1437 /* Output the opcode. */
1438 md_number_to_chars (to, the_insn.opcode, 4);
1439
1440 /* If necessary output more stuff. */
1441 if (the_insn.reloc != R_HPPA_NONE)
1442 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1443 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1444 the_insn.reloc, the_insn.field_selector,
1445 the_insn.format, the_insn.arg_reloc, NULL);
1446}
1447
1448/* Do the real work for assembling a single instruction. Store results
1449 into the global "the_insn" variable. */
1450
1451static void
1452pa_ip (str)
1453 char *str;
1454{
1455 char *error_message = "";
1456 char *s, c, *argstart, *name, *save_s;
1457 const char *args;
1458 int match = FALSE;
1459 int comma = 0;
1460 int cmpltr, nullif, flag, cond, num;
1461 unsigned long opcode;
1462 struct pa_opcode *insn;
1463
49863f82 1464#ifdef OBJ_SOM
252b5132
RH		 1465 /* We must have a valid space and subspace. */
1466 pa_check_current_space_and_subspace ();
49863f82 1467#endif
252b5132 1468
b1c5e0ee
JL		 1469 /* Convert everything up to the first whitespace character into lower
1470 case. */
1471 for (s = str; *s != ' ' && *s != '\t' && *s != '\n' && *s != '\0'; s++)
1472 if (isupper (*s))
1473 *s = tolower (*s);
1474
252b5132
RH		 1475 /* Skip to something interesting. */
1476 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1477 ;
1478
1479 switch (*s)
1480 {
1481
1482 case '\0':
1483 break;
1484
1485 case ',':
1486 comma = 1;
1487
1488 /*FALLTHROUGH */
1489
1490 case ' ':
1491 *s++ = '\0';
1492 break;
1493
1494 default:
1495 as_fatal (_("Unknown opcode: `%s'"), str);
1496 }
1497
1498 save_s = str;
1499
252b5132
RH		 1500 /* Look up the opcode in the has table. */
1501 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1502 {
1503 as_bad ("Unknown opcode: `%s'", str);
1504 return;
1505 }
1506
1507 if (comma)
1508 {
1509 *--s = ',';
1510 }
1511
1512 /* Mark the location where arguments for the instruction start, then
1513 start processing them. */
1514 argstart = s;
1515 for (;;)
1516 {
1517 /* Do some initialization. */
1518 opcode = insn->match;
0f4f8b56 1519 strict = (insn->flags & FLAG_STRICT);
252b5132
RH		 1520 memset (&the_insn, 0, sizeof (the_insn));
1521
1522 the_insn.reloc = R_HPPA_NONE;
1523
1524 /* If this instruction is specific to a particular architecture,
1525 then set a new architecture. */
1526 /* But do not automatically promote to pa2.0. The automatic promotion
1527 crud is for compatability with HP's old assemblers only. */
1528 if (insn->arch < 20
1529 && bfd_get_mach (stdoutput) < insn->arch)
1530 {
1531 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, insn->arch))
1532 as_warn (_("could not update architecture and machine"));
1533 }
1534 else if (bfd_get_mach (stdoutput) < insn->arch)
1535 {
1536 match = FALSE;
1537 goto failed;
1538 }
1539
1540 /* Build the opcode, checking as we go to make
1541 sure that the operands match. */
1542 for (args = insn->args;; ++args)
1543 {
680ef6de
JL		 1544 /* Absorb white space in instruction. */
1545 while (*s == ' ' || *s == '\t')
1546 s++;
1547
252b5132
RH		 1548 switch (*args)
1549 {
1550
1551 /* End of arguments. */
1552 case '\0':
1553 if (*s == '\0')
1554 match = TRUE;
1555 break;
1556
1557 case '+':
1558 if (*s == '+')
1559 {
1560 ++s;
1561 continue;
1562 }
1563 if (*s == '-')
1564 continue;
1565 break;
1566
1567 /* These must match exactly. */
1568 case '(':
1569 case ')':
1570 case ',':
1571 case ' ':
1572 if (*s++ == *args)
1573 continue;
1574 break;
1575
1576 /* Handle a 5 bit register or control register field at 10. */
1577 case 'b':
1578 case '^':
0f4f8b56
JL		 1579 /* This should be more strict. Small steps. */
1580 if (strict && *s != '%')
1581 break;
e7c1f43c 1582 num = pa_parse_number (&s, 0);
252b5132
RH		 1583 CHECK_FIELD (num, 31, 0, 0);
1584 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
1585
a97685e9
JL		 1586 /* Handle %sar or %cr11. No bits get set, we just verify that it
1587 is there. */
1588 case '!':
1589 /* Skip whitespace before register. */
1590 while (*s == ' ' || *s == '\t')
1591 s = s + 1;
1592
1593 if (!strncasecmp(s, "%sar", 4))
1594 {
1595 s += 4;
1596 continue;
1597 }
1598 else if (!strncasecmp(s, "%cr11", 5))
1599 {
1600 s += 5;
1601 continue;
1602 }
1603 break;
1604
252b5132
RH		 1605 /* Handle a 5 bit register field at 15. */
1606 case 'x':
0f4f8b56
JL		 1607 /* This should be more strict. Small steps. */
1608 if (strict && *s != '%')
1609 break;
e7c1f43c 1610 num = pa_parse_number (&s, 0);
252b5132
RH		 1611 CHECK_FIELD (num, 31, 0, 0);
1612 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1613
1614 /* Handle a 5 bit register field at 31. */
252b5132 1615 case 't':
0f4f8b56
JL		 1616 /* This should be more strict. Small steps. */
1617 if (strict && *s != '%')
1618 break;
e7c1f43c 1619 num = pa_parse_number (&s, 0);
252b5132
RH		 1620 CHECK_FIELD (num, 31, 0, 0);
1621 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1622
413c94ba
JL		 1623 /* Handle a 5 bit register field at 10 and 15. */
1624 case 'a':
0f4f8b56
JL		 1625 /* This should be more strict. Small steps. */
1626 if (strict && *s != '%')
1627 break;
e7c1f43c 1628 num = pa_parse_number (&s, 0);
413c94ba
JL		 1629 CHECK_FIELD (num, 31, 0, 0);
1630 opcode |= num << 16;
1631 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
1632
252b5132
RH		 1633 /* Handle a 5 bit field length at 31. */
1634 case 'T':
1635 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1636 if (strict && the_insn.exp.X_op != O_constant)
1637 break;
252b5132
RH		 1638 s = expr_end;
1639 CHECK_FIELD (num, 32, 1, 0);
1640 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
1641
1642 /* Handle a 5 bit immediate at 15. */
1643 case '5':
1644 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1645 if (strict && the_insn.exp.X_op != O_constant)
1646 break;
252b5132 1647 s = expr_end;
0f4f8b56
JL		 1648 /* When in strict mode, we want to just reject this
1649 match instead of giving an out of range error. */
1650 CHECK_FIELD (num, 15, -16, strict);
252b5132
RH		 1651 low_sign_unext (num, 5, &num);
1652 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1653
1654 /* Handle a 5 bit immediate at 31. */
1655 case 'V':
1656 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1657 if (strict && the_insn.exp.X_op != O_constant)
1658 break;
252b5132 1659 s = expr_end;
0f4f8b56
JL		 1660 /* When in strict mode, we want to just reject this
1661 match instead of giving an out of range error. */
1662 CHECK_FIELD (num, 15, -16, strict)
252b5132
RH		 1663 low_sign_unext (num, 5, &num);
1664 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1665
1666 /* Handle an unsigned 5 bit immediate at 31. */
1667 case 'r':
1668 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1669 if (strict && the_insn.exp.X_op != O_constant)
1670 break;
252b5132
RH		 1671 s = expr_end;
1672 CHECK_FIELD (num, 31, 0, 0);
0f4f8b56 1673 INSERT_FIELD_AND_CONTINUE (opcode, num, strict);
252b5132
RH		 1674
1675 /* Handle an unsigned 5 bit immediate at 15. */
1676 case 'R':
1677 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1678 if (strict && the_insn.exp.X_op != O_constant)
1679 break;
252b5132 1680 s = expr_end;
0f4f8b56 1681 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 1682 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1683
680ef6de
JL		 1684 /* Handle an unsigned 10 bit immediate at 15. */
1685 case 'U':
1686 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1687 if (strict && the_insn.exp.X_op != O_constant)
1688 break;
680ef6de 1689 s = expr_end;
0f4f8b56 1690 CHECK_FIELD (num, 1023, 0, strict);
680ef6de
JL		 1691 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1692
252b5132
RH		 1693 /* Handle a 2 bit space identifier at 17. */
1694 case 's':
0f4f8b56
JL		 1695 /* This should be more strict. Small steps. */
1696 if (strict && *s != '%')
1697 break;
e7c1f43c 1698 num = pa_parse_number (&s, 0);
252b5132
RH		 1699 CHECK_FIELD (num, 3, 0, 1);
1700 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
1701
1702 /* Handle a 3 bit space identifier at 18. */
1703 case 'S':
0f4f8b56
JL		 1704 /* This should be more strict. Small steps. */
1705 if (strict && *s != '%')
1706 break;
e7c1f43c 1707 num = pa_parse_number (&s, 0);
252b5132
RH		 1708 CHECK_FIELD (num, 7, 0, 1);
1709 dis_assemble_3 (num, &num);
1710 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
1711
28252e61 1712 /* Handle all completers. */
252b5132 1713 case 'c':
28252e61
JL		 1714 switch (*++args)
1715 {
1716
1717 /* Handle a completer for an indexing load or store. */
1718 case 'x':
252b5132 1719 {
28252e61
JL		 1720 int uu = 0;
1721 int m = 0;
1722 int i = 0;
1723 while (*s == ',' && i < 2)
252b5132 1724 {
28252e61
JL		 1725 s++;
1726 if (strncasecmp (s, "sm", 2) == 0)
1727 {
1728 uu = 1;
1729 m = 1;
1730 s++;
1731 i++;
1732 }
1733 else if (strncasecmp (s, "m", 1) == 0)
1734 m = 1;
1735 else if (strncasecmp (s, "s", 1) == 0)
1736 uu = 1;
0f4f8b56
JL		 1737 /* When in strict mode this is a match failure. */
1738 else if (strict)
1739 break;
28252e61
JL		 1740 else
1741 as_bad (_("Invalid Indexed Load Completer."));
252b5132
RH		 1742 s++;
1743 i++;
1744 }
28252e61
JL		 1745 if (i > 2)
1746 as_bad (_("Invalid Indexed Load Completer Syntax."));
1747 opcode |= m << 5;
1748 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
252b5132 1749 }
252b5132 1750
28252e61
JL		 1751 /* Handle a short load/store completer. */
1752 case 'm':
252b5132 1753 {
28252e61
JL		 1754 int a = 0;
1755 int m = 0;
1756 if (*s == ',')
252b5132 1757 {
28252e61
JL		 1758 s++;
1759 if (strncasecmp (s, "ma", 2) == 0)
1760 {
1761 a = 0;
1762 m = 1;
1763 }
1764 else if (strncasecmp (s, "mb", 2) == 0)
1765 {
1766 a = 1;
1767 m = 1;
1768 }
0f4f8b56
JL		 1769 /* When in strict mode this is a match failure. */
1770 else if (strict)
1771 break;
28252e61
JL		 1772 else
1773 as_bad (_("Invalid Short Load/Store Completer."));
1774 s += 2;
252b5132 1775 }
252b5132 1776
252b5132
RH		 1777 opcode |= m << 5;
1778 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1779 }
252b5132 1780
28252e61
JL		 1781 /* Handle a stbys completer. */
1782 case 's':
252b5132 1783 {
28252e61
JL		 1784 int a = 0;
1785 int m = 0;
1786 int i = 0;
1787 while (*s == ',' && i < 2)
1788 {
1789 s++;
1790 if (strncasecmp (s, "m", 1) == 0)
1791 m = 1;
1792 else if (strncasecmp (s, "b", 1) == 0)
1793 a = 0;
1794 else if (strncasecmp (s, "e", 1) == 0)
1795 a = 1;
0f4f8b56
JL		 1796 /* When in strict mode this is a match failure. */
1797 else if (strict)
1798 break;
28252e61
JL		 1799 else
1800 as_bad (_("Invalid Store Bytes Short Completer"));
1801 s++;
1802 i++;
1803 }
1804 if (i > 2)
252b5132 1805 as_bad (_("Invalid Store Bytes Short Completer"));
28252e61
JL		 1806 opcode |= m << 5;
1807 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
252b5132 1808 }
28252e61 1809
680ef6de
JL		 1810 /* Handle a local processor completer. */
1811 case 'L':
1812 if (strncasecmp (s, ",l", 2) != 0)
1813 break;
1814 s += 2;
1815 continue;
1816
1817 /* Handle a PROBE read/write completer. */
1818 case 'w':
1819 flag = 0;
1820 if (!strncasecmp (s, ",w", 2))
1821 {
1822 flag = 1;
1823 s += 2;
1824 }
1825 else if (!strncasecmp (s, ",r", 2))
1826 {
1827 flag = 0;
1828 s += 2;
1829 }
1830
1831 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
1832
1833 /* Handle MFCTL wide completer. */
1834 case 'W':
1835 if (strncasecmp (s, ",w", 2) != 0)
1836 break;
1837 s += 2;
1838 continue;
1839
1840 /* Handle an RFI restore completer. */
1841 case 'r':
1842 flag = 0;
1843 if (!strncasecmp (s, ",r", 2))
1844 {
1845 flag = 5;
1846 s += 2;
1847 }
1848
1849 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
1850
28252e61
JL		 1851 /* Handle a system control completer. */
1852 case 'Z':
1853 if (*s == ',' && (*(s + 1) == 'm' || *(s + 1) == 'M'))
1854 {
1855 flag = 1;
1856 s += 2;
1857 }
1858 else
1859 flag = 0;
1860
1861 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
1862
680ef6de
JL		 1863 /* Handle intermediate/final completer for DCOR. */
1864 case 'i':
1865 flag = 0;
1866 if (!strncasecmp (s, ",i", 2))
1867 {
1868 flag = 1;
1869 s += 2;
1870 }
1871
1872 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
1873
9e4f2d3a
JL		 1874 /* Handle zero/sign extension completer. */
1875 case 'z':
1876 flag = 1;
1877 if (!strncasecmp (s, ",z", 2))
1878 {
1879 flag = 0;
1880 s += 2;
1881 }
1882
1883 INSERT_FIELD_AND_CONTINUE (opcode, flag, 10);
1884
680ef6de
JL		 1885 /* Handle add completer. */
1886 case 'a':
1887 flag = 1;
1888 if (!strncasecmp (s, ",l", 2))
1889 {
1890 flag = 2;
1891 s += 2;
1892 }
1893 else if (!strncasecmp (s, ",tsv", 4))
1894 {
1895 flag = 3;
1896 s += 4;
1897 }
1898
1899 INSERT_FIELD_AND_CONTINUE (opcode, flag, 10);
1900
1901 /* Handle 64 bit carry for ADD. */
1902 case 'Y':
1903 flag = 0;
1904 if (!strncasecmp (s, ",dc,tsv", 7) ||
1905 !strncasecmp (s, ",tsv,dc", 7))
1906 {
1907 flag = 1;
1908 s += 7;
1909 }
1910 else if (!strncasecmp (s, ",dc", 3))
1911 {
1912 flag = 0;
1913 s += 3;
1914 }
1915 else
1916 break;
1917
1918 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
1919
1920 /* Handle 32 bit carry for ADD. */
1921 case 'y':
1922 flag = 0;
1923 if (!strncasecmp (s, ",c,tsv", 6) ||
1924 !strncasecmp (s, ",tsv,c", 6))
1925 {
1926 flag = 1;
1927 s += 6;
1928 }
1929 else if (!strncasecmp (s, ",c", 2))
1930 {
1931 flag = 0;
1932 s += 2;
1933 }
1934 else
1935 break;
1936
1937 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
1938
1939 /* Handle trap on signed overflow. */
1940 case 'v':
1941 flag = 0;
1942 if (!strncasecmp (s, ",tsv", 4))
1943 {
1944 flag = 1;
1945 s += 4;
1946 }
1947
1948 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
1949
1950 /* Handle trap on condition and overflow. */
1951 case 't':
1952 flag = 0;
1953 if (!strncasecmp (s, ",tc,tsv", 7) ||
1954 !strncasecmp (s, ",tsv,tc", 7))
1955 {
1956 flag = 1;
1957 s += 7;
1958 }
1959 else if (!strncasecmp (s, ",tc", 3))
1960 {
1961 flag = 0;
1962 s += 3;
1963 }
1964 else
1965 break;
1966
1967 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
1968
1969 /* Handle 64 bit borrow for SUB. */
1970 case 'B':
1971 flag = 0;
1972 if (!strncasecmp (s, ",db,tsv", 7) ||
1973 !strncasecmp (s, ",tsv,db", 7))
1974 {
1975 flag = 1;
1976 s += 7;
1977 }
1978 else if (!strncasecmp (s, ",db", 3))
1979 {
1980 flag = 0;
1981 s += 3;
1982 }
1983 else
1984 break;
1985
1986 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
1987
1988 /* Handle 32 bit borrow for SUB. */
1989 case 'b':
1990 flag = 0;
1991 if (!strncasecmp (s, ",b,tsv", 6) ||
1992 !strncasecmp (s, ",tsv,b", 6))
1993 {
1994 flag = 1;
1995 s += 6;
1996 }
1997 else if (!strncasecmp (s, ",b", 2))
1998 {
1999 flag = 0;
2000 s += 2;
2001 }
2002 else
2003 break;
2004
2005 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2006
2007 /* Handle trap condition completer for UADDCM. */
2008 case 'T':
2009 flag = 0;
2010 if (!strncasecmp (s, ",tc", 3))
2011 {
2012 flag = 1;
2013 s += 3;
2014 }
2015
2016 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
2017
413c94ba
JL		 2018 /* Handle signed/unsigned at 21. */
2019 case 'S':
2020 {
2021 int sign = 1;
2022 if (strncasecmp (s, ",s", 2) == 0)
2023 {
2024 sign = 1;
2025 s += 2;
2026 }
2027 else if (strncasecmp (s, ",u", 2) == 0)
2028 {
2029 sign = 0;
2030 s += 2;
2031 }
2032
2033 INSERT_FIELD_AND_CONTINUE (opcode, sign, 10);
2034 }
2035
2036 /* Handle left/right combination at 17:18. */
2037 case 'h':
2038 if (*s++ == ',')
2039 {
2040 int lr = 0;
2041 if (*s == 'r')
2042 lr = 2;
2043 else if (*s == 'l')
2044 lr = 0;
2045 else
2046 as_bad(_("Invalid left/right combination completer"));
2047
2048 s++;
2049 INSERT_FIELD_AND_CONTINUE (opcode, lr, 13);
2050 }
2051 else
2052 as_bad(_("Invalid left/right combination completer"));
2053 break;
2054
2055 /* Handle saturation at 24:25. */
2056 case 'H':
2057 {
2058 int sat = 3;
2059 if (strncasecmp (s, ",ss", 3) == 0)
2060 {
2061 sat = 1;
2062 s += 3;
2063 }
2064 else if (strncasecmp (s, ",us", 3) == 0)
2065 {
2066 sat = 0;
2067 s += 3;
2068 }
2069
2070 INSERT_FIELD_AND_CONTINUE (opcode, sat, 6);
2071 }
2072
2073 /* Handle permutation completer. */
2074 case '*':
2075 if (*s++ == ',')
2076 {
2077 int permloc[4] = {13,10,8,6};
2078 int perm = 0;
2079 int i = 0;
2080 for (; i < 4; i++)
2081 {
2082 switch (*s++)
2083 {
2084 case '0':
2085 perm = 0;
2086 break;
2087 case '1':
2088 perm = 1;
2089 break;
2090 case '2':
2091 perm = 2;
2092 break;
2093 case '3':
2094 perm = 3;
2095 break;
2096 default:
2097 as_bad(_("Invalid permutation completer"));
2098 }
2099 opcode |= perm << permloc[i];
2100 }
2101 continue;
2102 }
2103 else
2104 as_bad(_("Invalid permutation completer"));
2105 break;
2106
28252e61
JL		 2107 default:
2108 abort ();
2109 }
2110 break;
252b5132 2111
55a914bc 2112 /* Handle all conditions. */
252b5132 2113 case '?':
55a914bc
JL		 2114 {
2115 args++;
2116 switch (*args)
2117 {
2118 /* Handle FP compare conditions. */
2119 case 'f':
2120 cond = pa_parse_fp_cmp_cond (&s);
2121 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
2122
2123 /* Handle an add condition. */
9a913dfb 2124 case 'A':
55a914bc
JL		 2125 case 'a':
2126 cmpltr = 0;
2127 flag = 0;
2128 if (*s == ',')
2129 {
2130 s++;
9a913dfb
JL		 2131
2132 /* 64 bit conditions. */
2133 if (*args == 'A')
2134 {
2135 if (*s == '*')
2136 s++;
2137 else
2138 break;
2139 }
17d9105c
JL		 2140 else if (*s == '*')
2141 break;
55a914bc 2142 name = s;
9a913dfb 2143
680ef6de 2144 name = s;
55a914bc
JL		 2145 while (*s != ',' && *s != ' ' && *s != '\t')
2146 s += 1;
2147 c = *s;
2148 *s = 0x00;
2149 if (strcmp (name, "=") == 0)
2150 cmpltr = 1;
2151 else if (strcmp (name, "<") == 0)
2152 cmpltr = 2;
2153 else if (strcmp (name, "<=") == 0)
2154 cmpltr = 3;
2155 else if (strcasecmp (name, "nuv") == 0)
2156 cmpltr = 4;
2157 else if (strcasecmp (name, "znv") == 0)
2158 cmpltr = 5;
2159 else if (strcasecmp (name, "sv") == 0)
2160 cmpltr = 6;
2161 else if (strcasecmp (name, "od") == 0)
2162 cmpltr = 7;
2163 else if (strcasecmp (name, "tr") == 0)
2164 {
2165 cmpltr = 0;
2166 flag = 1;
2167 }
2168 else if (strcmp (name, "<>") == 0)
2169 {
2170 cmpltr = 1;
2171 flag = 1;
2172 }
2173 else if (strcmp (name, ">=") == 0)
2174 {
2175 cmpltr = 2;
2176 flag = 1;
2177 }
2178 else if (strcmp (name, ">") == 0)
2179 {
2180 cmpltr = 3;
2181 flag = 1;
2182 }
2183 else if (strcasecmp (name, "uv") == 0)
2184 {
2185 cmpltr = 4;
2186 flag = 1;
2187 }
2188 else if (strcasecmp (name, "vnz") == 0)
2189 {
2190 cmpltr = 5;
2191 flag = 1;
2192 }
2193 else if (strcasecmp (name, "nsv") == 0)
2194 {
2195 cmpltr = 6;
2196 flag = 1;
2197 }
2198 else if (strcasecmp (name, "ev") == 0)
2199 {
2200 cmpltr = 7;
2201 flag = 1;
2202 }
9a913dfb
JL		 2203 /* ",*" is a valid condition. */
2204 else if (*args == 'a')
55a914bc
JL		 2205 as_bad (_("Invalid Add Condition: %s"), name);
2206 *s = c;
2207 }
2208 opcode |= cmpltr << 13;
2209 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2210
55a914bc
JL		 2211 /* Handle non-negated add and branch condition. */
2212 case 'd':
2213 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
2214 if (cmpltr < 0)
2215 {
2216 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2217 cmpltr = 0;
2218 }
2219 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2220
9a913dfb
JL		 2221 /* Handle negated add and branch condition. */
2222 case 'D':
2223 abort ();
2224
2225 /* Handle wide-mode non-negated add and branch condition. */
2226 case 'w':
2227 abort ();
2228
2229 /* Handle wide-mode negated add and branch condition. */
2230 case 'W':
2231 abort();
2232
55a914bc
JL		 2233 /* Handle a negated or non-negated add and branch
2234 condition. */
2235 case '@':
2236 save_s = s;
2237 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
2238 if (cmpltr < 0)
2239 {
2240 s = save_s;
2241 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
2242 if (cmpltr < 0)
2243 {
2244 as_bad (_("Invalid Compare/Subtract Condition"));
2245 cmpltr = 0;
2246 }
2247 else
2248 {
2249 /* Negated condition requires an opcode change. */
2250 opcode |= 1 << 27;
2251 }
2252 }
2253 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
252b5132 2254
55a914bc 2255 /* Handle branch on bit conditions. */
9a913dfb 2256 case 'B':
55a914bc
JL		 2257 case 'b':
2258 cmpltr = 0;
2259 if (*s == ',')
2260 {
2261 s++;
9a913dfb
JL		 2262
2263 if (*args == 'B')
2264 {
2265 if (*s == '*')
2266 s++;
2267 else
2268 break;
2269 }
17d9105c
JL		 2270 else if (*s == '*')
2271 break;
9a913dfb 2272
55a914bc
JL		 2273 if (strncmp (s, "<", 1) == 0)
2274 {
2275 cmpltr = 0;
2276 s++;
2277 }
2278 else if (strncmp (s, ">=", 2) == 0)
2279 {
2280 cmpltr = 1;
2281 s += 2;
2282 }
2283 else
2284 as_bad (_("Invalid Bit Branch Condition: %c"), *s);
2285 }
2286 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 15);
252b5132 2287
55a914bc 2288 /* Handle a compare/subtract condition. */
9a913dfb 2289 case 'S':
55a914bc
JL		 2290 case 's':
2291 cmpltr = 0;
2292 flag = 0;
2293 if (*s == ',')
2294 {
2295 s++;
9a913dfb
JL		 2296
2297 /* 64 bit conditions. */
2298 if (*args == 'S')
2299 {
2300 if (*s == '*')
2301 s++;
2302 else
2303 break;
2304 }
17d9105c
JL		 2305 else if (*s == '*')
2306 break;
55a914bc 2307 name = s;
9a913dfb 2308
680ef6de 2309 name = s;
55a914bc
JL		 2310 while (*s != ',' && *s != ' ' && *s != '\t')
2311 s += 1;
2312 c = *s;
2313 *s = 0x00;
2314 if (strcmp (name, "=") == 0)
2315 cmpltr = 1;
2316 else if (strcmp (name, "<") == 0)
2317 cmpltr = 2;
2318 else if (strcmp (name, "<=") == 0)
2319 cmpltr = 3;
2320 else if (strcasecmp (name, "<<") == 0)
2321 cmpltr = 4;
2322 else if (strcasecmp (name, "<<=") == 0)
2323 cmpltr = 5;
2324 else if (strcasecmp (name, "sv") == 0)
2325 cmpltr = 6;
2326 else if (strcasecmp (name, "od") == 0)
2327 cmpltr = 7;
2328 else if (strcasecmp (name, "tr") == 0)
2329 {
2330 cmpltr = 0;
2331 flag = 1;
2332 }
2333 else if (strcmp (name, "<>") == 0)
2334 {
2335 cmpltr = 1;
2336 flag = 1;
2337 }
2338 else if (strcmp (name, ">=") == 0)
2339 {
2340 cmpltr = 2;
2341 flag = 1;
2342 }
2343 else if (strcmp (name, ">") == 0)
2344 {
2345 cmpltr = 3;
2346 flag = 1;
2347 }
2348 else if (strcasecmp (name, ">>=") == 0)
2349 {
2350 cmpltr = 4;
2351 flag = 1;
2352 }
2353 else if (strcasecmp (name, ">>") == 0)
2354 {
2355 cmpltr = 5;
2356 flag = 1;
2357 }
2358 else if (strcasecmp (name, "nsv") == 0)
2359 {
2360 cmpltr = 6;
2361 flag = 1;
2362 }
2363 else if (strcasecmp (name, "ev") == 0)
2364 {
2365 cmpltr = 7;
2366 flag = 1;
2367 }
9a913dfb
JL		 2368 /* ",*" is a valid condition. */
2369 else if (*args != 'S')
55a914bc
JL		 2370 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2371 name);
2372 *s = c;
2373 }
2374 opcode |= cmpltr << 13;
2375 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2376
55a914bc
JL		 2377 /* Handle a non-negated compare condition. */
2378 case 't':
2379 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2380 if (cmpltr < 0)
2381 {
2382 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2383 cmpltr = 0;
2384 }
2385 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
9a913dfb
JL		 2386
2387 /* Handle a negated compare condition. */
2388 case 'T':
2389 abort ();
2390
2391 /* Handle a 64 bit non-negated compare condition. */
2392 case 'r':
2393 abort ();
2394
2395 /* Handle a 64 bit negated compare condition. */
2396 case 'R':
2397 abort ();
2398
2399 /* Handle a 64 bit cmpib condition. */
2400 case 'Q':
2401 abort ();
55a914bc
JL		 2402
2403 /* Handle a negated or non-negated compare/subtract
2404 condition. */
2405 case 'n':
2406 save_s = s;
2407 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2408 if (cmpltr < 0)
2409 {
2410 s = save_s;
2411 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
2412 if (cmpltr < 0)
2413 {
2414 as_bad (_("Invalid Compare/Subtract Condition."));
2415 cmpltr = 0;
2416 }
2417 else
2418 {
2419 /* Negated condition requires an opcode change. */
2420 opcode |= 1 << 27;
2421 }
2422 }
2423
2424 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2425
2426 /* Handle a logical instruction condition. */
9a913dfb 2427 case 'L':
55a914bc
JL		 2428 case 'l':
2429 cmpltr = 0;
2430 flag = 0;
2431 if (*s == ',')
2432 {
2433 s++;
9a913dfb
JL		 2434
2435 /* 64 bit conditions. */
2436 if (*args == 'L')
2437 {
2438 if (*s == '*')
2439 s++;
2440 else
2441 break;
2442 }
17d9105c
JL		 2443 else if (*s == '*')
2444 break;
55a914bc 2445 name = s;
9a913dfb 2446
680ef6de 2447 name = s;
55a914bc
JL		 2448 while (*s != ',' && *s != ' ' && *s != '\t')
2449 s += 1;
2450 c = *s;
2451 *s = 0x00;
2452
2453
2454 if (strcmp (name, "=") == 0)
2455 cmpltr = 1;
2456 else if (strcmp (name, "<") == 0)
2457 cmpltr = 2;
2458 else if (strcmp (name, "<=") == 0)
2459 cmpltr = 3;
2460 else if (strcasecmp (name, "od") == 0)
2461 cmpltr = 7;
2462 else if (strcasecmp (name, "tr") == 0)
2463 {
2464 cmpltr = 0;
2465 flag = 1;
2466 }
2467 else if (strcmp (name, "<>") == 0)
2468 {
2469 cmpltr = 1;
2470 flag = 1;
2471 }
2472 else if (strcmp (name, ">=") == 0)
2473 {
2474 cmpltr = 2;
2475 flag = 1;
2476 }
2477 else if (strcmp (name, ">") == 0)
2478 {
2479 cmpltr = 3;
2480 flag = 1;
2481 }
2482 else if (strcasecmp (name, "ev") == 0)
2483 {
2484 cmpltr = 7;
2485 flag = 1;
2486 }
9a913dfb
JL		 2487 /* ",*" is a valid condition. */
2488 else if (*args != 'L')
55a914bc
JL		 2489 as_bad (_("Invalid Logical Instruction Condition."));
2490 *s = c;
2491 }
2492 opcode |= cmpltr << 13;
2493 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
2494
2495 /* Handle a shift/extract/deposit condition. */
9a913dfb 2496 case 'X':
55a914bc
JL		 2497 case 'x':
2498 case 'y':
2499 cmpltr = 0;
2500 if (*s == ',')
2501 {
2502 save_s = s++;
2503
9a913dfb
JL		 2504 /* 64 bit conditions. */
2505 if (*args == 'X')
2506 {
2507 if (*s == '*')
2508 s++;
2509 else
2510 break;
2511 }
17d9105c
JL		 2512 else if (*s == '*')
2513 break;
55a914bc 2514 name = s;
9a913dfb 2515
680ef6de 2516 name = s;
55a914bc
JL		 2517 while (*s != ',' && *s != ' ' && *s != '\t')
2518 s += 1;
2519 c = *s;
2520 *s = 0x00;
2521 if (strcmp (name, "=") == 0)
2522 cmpltr = 1;
2523 else if (strcmp (name, "<") == 0)
2524 cmpltr = 2;
2525 else if (strcasecmp (name, "od") == 0)
2526 cmpltr = 3;
2527 else if (strcasecmp (name, "tr") == 0)
2528 cmpltr = 4;
2529 else if (strcmp (name, "<>") == 0)
2530 cmpltr = 5;
2531 else if (strcmp (name, ">=") == 0)
2532 cmpltr = 6;
2533 else if (strcasecmp (name, "ev") == 0)
2534 cmpltr = 7;
2535 /* Handle movb,n. Put things back the way they were.
2536 This includes moving s back to where it started. */
2537 else if (strcasecmp (name, "n") == 0 && *args == 'y')
2538 {
2539 *s = c;
2540 s = save_s;
2541 continue;
2542 }
9a913dfb
JL		 2543 /* ",*" is a valid condition. */
2544 else if (*args != 'X')
55a914bc
JL		 2545 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2546 *s = c;
2547 }
2548 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
252b5132 2549
55a914bc 2550 /* Handle a unit instruction condition. */
9a913dfb
JL		 2551 case 'U':
2552 case 'u':
55a914bc
JL		 2553 cmpltr = 0;
2554 flag = 0;
2555 if (*s == ',')
2556 {
2557 s++;
2558
9a913dfb
JL		 2559 /* 64 bit conditions. */
2560 if (*args == 'U')
2561 {
2562 if (*s == '*')
2563 s++;
2564 else
2565 break;
2566 }
17d9105c
JL		 2567 else if (*s == '*')
2568 break;
9a913dfb 2569
55a914bc
JL		 2570 if (strncasecmp (s, "sbz", 3) == 0)
2571 {
2572 cmpltr = 2;
2573 s += 3;
2574 }
2575 else if (strncasecmp (s, "shz", 3) == 0)
2576 {
2577 cmpltr = 3;
2578 s += 3;
2579 }
2580 else if (strncasecmp (s, "sdc", 3) == 0)
2581 {
2582 cmpltr = 4;
2583 s += 3;
2584 }
2585 else if (strncasecmp (s, "sbc", 3) == 0)
2586 {
2587 cmpltr = 6;
2588 s += 3;
2589 }
2590 else if (strncasecmp (s, "shc", 3) == 0)
2591 {
2592 cmpltr = 7;
2593 s += 3;
2594 }
2595 else if (strncasecmp (s, "tr", 2) == 0)
2596 {
2597 cmpltr = 0;
2598 flag = 1;
2599 s += 2;
2600 }
2601 else if (strncasecmp (s, "nbz", 3) == 0)
2602 {
2603 cmpltr = 2;
2604 flag = 1;
2605 s += 3;
2606 }
2607 else if (strncasecmp (s, "nhz", 3) == 0)
2608 {
2609 cmpltr = 3;
2610 flag = 1;
2611 s += 3;
2612 }
2613 else if (strncasecmp (s, "ndc", 3) == 0)
2614 {
2615 cmpltr = 4;
2616 flag = 1;
2617 s += 3;
2618 }
2619 else if (strncasecmp (s, "nbc", 3) == 0)
2620 {
2621 cmpltr = 6;
2622 flag = 1;
2623 s += 3;
2624 }
2625 else if (strncasecmp (s, "nhc", 3) == 0)
2626 {
2627 cmpltr = 7;
2628 flag = 1;
2629 s += 3;
2630 }
9a913dfb
JL		 2631 /* ",*" is a valid condition. */
2632 else if (*args != 'U')
55a914bc
JL		 2633 as_bad (_("Invalid Unit Instruction Condition."));
2634 }
2635 opcode |= cmpltr << 13;
2636 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2637
55a914bc
JL		 2638 default:
2639 abort ();
2640 }
0741736b 2641 break;
55a914bc 2642 }
252b5132 2643
252b5132
RH		 2644 /* Handle a nullification completer for branch instructions. */
2645 case 'n':
2646 nullif = pa_parse_nullif (&s);
2647 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
2648
2649 /* Handle a nullification completer for copr and spop insns. */
2650 case 'N':
2651 nullif = pa_parse_nullif (&s);
2652 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2653
2654
2655 /* Handle a 11 bit immediate at 31. */
2656 case 'i':
2657 the_insn.field_selector = pa_chk_field_selector (&s);
2658 get_expression (s);
2659 s = expr_end;
2660 if (the_insn.exp.X_op == O_constant)
2661 {
2662 num = evaluate_absolute (&the_insn);
2663 CHECK_FIELD (num, 1023, -1024, 0);
2664 low_sign_unext (num, 11, &num);
2665 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2666 }
2667 else
2668 {
2669 if (is_DP_relative (the_insn.exp))
2670 the_insn.reloc = R_HPPA_GOTOFF;
2671 else if (is_PC_relative (the_insn.exp))
2672 the_insn.reloc = R_HPPA_PCREL_CALL;
2673 else
2674 the_insn.reloc = R_HPPA;
2675 the_insn.format = 11;
2676 continue;
2677 }
2678
2679
2680 /* Handle a 14 bit immediate at 31. */
2681 case 'j':
2682 the_insn.field_selector = pa_chk_field_selector (&s);
2683 get_expression (s);
2684 s = expr_end;
2685 if (the_insn.exp.X_op == O_constant)
2686 {
2687 num = evaluate_absolute (&the_insn);
2688 CHECK_FIELD (num, 8191, -8192, 0);
2689 low_sign_unext (num, 14, &num);
2690 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2691 }
2692 else
2693 {
2694 if (is_DP_relative (the_insn.exp))
2695 the_insn.reloc = R_HPPA_GOTOFF;
2696 else if (is_PC_relative (the_insn.exp))
2697 the_insn.reloc = R_HPPA_PCREL_CALL;
2698 else
2699 the_insn.reloc = R_HPPA;
2700 the_insn.format = 14;
2701 continue;
2702 }
2703
2704 /* Handle a 21 bit immediate at 31. */
2705 case 'k':
2706 the_insn.field_selector = pa_chk_field_selector (&s);
2707 get_expression (s);
2708 s = expr_end;
2709 if (the_insn.exp.X_op == O_constant)
2710 {
2711 num = evaluate_absolute (&the_insn);
2712 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
2713 dis_assemble_21 (num, &num);
2714 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2715 }
2716 else
2717 {
2718 if (is_DP_relative (the_insn.exp))
2719 the_insn.reloc = R_HPPA_GOTOFF;
2720 else if (is_PC_relative (the_insn.exp))
2721 the_insn.reloc = R_HPPA_PCREL_CALL;
2722 else
2723 the_insn.reloc = R_HPPA;
2724 the_insn.format = 21;
2725 continue;
2726 }
2727
2728 /* Handle a 12 bit branch displacement. */
2729 case 'w':
2730 the_insn.field_selector = pa_chk_field_selector (&s);
2731 get_expression (s);
2732 s = expr_end;
2733 the_insn.pcrel = 1;
2734 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
2735 {
2736 unsigned int w1, w, result;
2737
2738 num = evaluate_absolute (&the_insn);
2739 if (num % 4)
2740 {
2741 as_bad (_("Branch to unaligned address"));
2742 break;
2743 }
2744 CHECK_FIELD (num, 8199, -8184, 0);
2745 sign_unext ((num - 8) >> 2, 12, &result);
2746 dis_assemble_12 (result, &w1, &w);
2747 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
2748 }
2749 else
2750 {
2751 the_insn.reloc = R_HPPA_PCREL_CALL;
2752 the_insn.format = 12;
2753 the_insn.arg_reloc = last_call_desc.arg_reloc;
2754 memset (&last_call_desc, 0, sizeof (struct call_desc));
2755 s = expr_end;
2756 continue;
2757 }
2758
2759 /* Handle a 17 bit branch displacement. */
2760 case 'W':
2761 the_insn.field_selector = pa_chk_field_selector (&s);
2762 get_expression (s);
2763 s = expr_end;
2764 the_insn.pcrel = 1;
2765 if (!the_insn.exp.X_add_symbol
2766 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2767 "L$0\001"))
2768 {
2769 unsigned int w2, w1, w, result;
2770
2771 num = evaluate_absolute (&the_insn);
2772 if (num % 4)
2773 {
2774 as_bad (_("Branch to unaligned address"));
2775 break;
2776 }
2777 CHECK_FIELD (num, 262143, -262144, 0);
2778
2779 if (the_insn.exp.X_add_symbol)
2780 num -= 8;
2781
2782 sign_unext (num >> 2, 17, &result);
2783 dis_assemble_17 (result, &w1, &w2, &w);
2784 INSERT_FIELD_AND_CONTINUE (opcode,
2785 ((w2 << 2) | (w1 << 16) | w), 0);
2786 }
2787 else
2788 {
2789 the_insn.reloc = R_HPPA_PCREL_CALL;
2790 the_insn.format = 17;
2791 the_insn.arg_reloc = last_call_desc.arg_reloc;
2792 memset (&last_call_desc, 0, sizeof (struct call_desc));
2793 continue;
2794 }
2795
2796 /* Handle an absolute 17 bit branch target. */
2797 case 'z':
2798 the_insn.field_selector = pa_chk_field_selector (&s);
2799 get_expression (s);
2800 s = expr_end;
2801 the_insn.pcrel = 0;
2802 if (!the_insn.exp.X_add_symbol
2803 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2804 "L$0\001"))
2805 {
2806 unsigned int w2, w1, w, result;
2807
2808 num = evaluate_absolute (&the_insn);
2809 if (num % 4)
2810 {
2811 as_bad (_("Branch to unaligned address"));
2812 break;
2813 }
2814 CHECK_FIELD (num, 262143, -262144, 0);
2815
2816 if (the_insn.exp.X_add_symbol)
2817 num -= 8;
2818
2819 sign_unext (num >> 2, 17, &result);
2820 dis_assemble_17 (result, &w1, &w2, &w);
2821 INSERT_FIELD_AND_CONTINUE (opcode,
2822 ((w2 << 2) | (w1 << 16) | w), 0);
2823 }
2824 else
2825 {
2826 the_insn.reloc = R_HPPA_ABS_CALL;
2827 the_insn.format = 17;
2828 the_insn.arg_reloc = last_call_desc.arg_reloc;
2829 memset (&last_call_desc, 0, sizeof (struct call_desc));
2830 continue;
2831 }
2832
4964086a
JL		 2833 /* Handle '%r1' implicit operand of addil instruction. */
2834 case 'Z':
2835 if (*s == ',' && *(s + 1) == '%' && *(s + 3) == '1'
2836 && (*(s + 2) == 'r' || *(s + 2) == 'R'))
2837 {
2838 s += 4;
2839 continue;
2840 }
2841 else
2842 break;
2843
a97685e9
JL		 2844 /* Handle a 2 bit shift count at 25. */
2845 case '.':
2846 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2847 if (strict && the_insn.exp.X_op != O_constant)
2848 break;
a97685e9 2849 s = expr_end;
0f4f8b56 2850 CHECK_FIELD (num, 3, 1, strict);
a97685e9
JL		 2851 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2852
413c94ba
JL		 2853 /* Handle a 4 bit shift count at 25. */
2854 case '*':
2855 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2856 if (strict && the_insn.exp.X_op != O_constant)
2857 break;
413c94ba 2858 s = expr_end;
0f4f8b56 2859 CHECK_FIELD (num, 15, 0, strict);
413c94ba
JL		 2860 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2861
252b5132
RH		 2862 /* Handle a 5 bit shift count at 26. */
2863 case 'p':
2864 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2865 if (strict && the_insn.exp.X_op != O_constant)
2866 break;
252b5132 2867 s = expr_end;
0f4f8b56 2868 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 2869 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
2870
a97685e9
JL		 2871 /* Handle a 6 bit shift count at 20,22:26. */
2872 case '~':
2873 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2874 if (strict && the_insn.exp.X_op != O_constant)
2875 break;
a97685e9 2876 s = expr_end;
0f4f8b56 2877 CHECK_FIELD (num, 63, 0, strict);
a97685e9
JL		 2878 num = 63 - num;
2879 opcode |= (num & 0x20) << 6;
2880 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
2881
9e4f2d3a
JL		 2882 /* Handle a 6 bit field length at 23,27:31. */
2883 case '%':
2884 flag = 0;
2885 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2886 if (strict && the_insn.exp.X_op != O_constant)
2887 break;
9e4f2d3a 2888 s = expr_end;
0f4f8b56 2889 CHECK_FIELD (num, 64, 1, strict);
9e4f2d3a
JL		 2890 num--;
2891 opcode |= (num & 0x20) << 3;
2892 num = 31 - (num & 0x1f);
2893 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2894
2895 /* Handle a 6 bit field length at 19,27:31. */
2896 case '|':
2897 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2898 if (strict && the_insn.exp.X_op != O_constant)
2899 break;
9e4f2d3a 2900 s = expr_end;
0f4f8b56 2901 CHECK_FIELD (num, 64, 1, strict);
9e4f2d3a
JL		 2902 num--;
2903 opcode |= (num & 0x20) << 7;
2904 num = 31 - (num & 0x1f);
2905 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2906
252b5132
RH		 2907 /* Handle a 5 bit bit position at 26. */
2908 case 'P':
2909 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2910 if (strict && the_insn.exp.X_op != O_constant)
2911 break;
252b5132 2912 s = expr_end;
0f4f8b56 2913 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 2914 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
2915
9e4f2d3a
JL		 2916 /* Handle a 6 bit bit position at 20,22:26. */
2917 case 'q':
2918 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2919 if (strict && the_insn.exp.X_op != O_constant)
2920 break;
9e4f2d3a 2921 s = expr_end;
0f4f8b56 2922 CHECK_FIELD (num, 63, 0, strict);
9e4f2d3a
JL		 2923 opcode |= (num & 0x20) << 6;
2924 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
2925
252b5132
RH		 2926 /* Handle a 5 bit immediate at 10. */
2927 case 'Q':
252b5132 2928 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2929 if (strict && the_insn.exp.X_op != O_constant)
2930 break;
252b5132
RH		 2931 if (the_insn.exp.X_op != O_constant)
2932 break;
2933 s = expr_end;
0f4f8b56 2934 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 2935 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
2936
a97685e9
JL		 2937 /* Handle a 9 bit immediate at 28. */
2938 case '$':
2939 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2940 if (strict && the_insn.exp.X_op != O_constant)
2941 break;
a97685e9 2942 s = expr_end;
0f4f8b56 2943 CHECK_FIELD (num, 511, 1, strict);
a97685e9
JL		 2944 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
2945
252b5132
RH		 2946 /* Handle a 13 bit immediate at 18. */
2947 case 'A':
2948 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2949 if (strict && the_insn.exp.X_op != O_constant)
2950 break;
252b5132 2951 s = expr_end;
0f4f8b56 2952 CHECK_FIELD (num, 8191, 0, strict);
252b5132
RH		 2953 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
2954
2955 /* Handle a 26 bit immediate at 31. */
2956 case 'D':
2957 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2958 if (strict && the_insn.exp.X_op != O_constant)
2959 break;
252b5132 2960 s = expr_end;
0f4f8b56 2961 CHECK_FIELD (num, 671108864, 0, strict);
252b5132
RH		 2962 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2963
2964 /* Handle a 3 bit SFU identifier at 25. */
97e1581b 2965 case 'v':
252b5132
RH		 2966 if (*s++ != ',')
2967 as_bad (_("Invalid SFU identifier"));
2968 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2969 if (strict && the_insn.exp.X_op != O_constant)
2970 break;
252b5132 2971 s = expr_end;
0f4f8b56 2972 CHECK_FIELD (num, 7, 0, strict);
252b5132
RH		 2973 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2974
2975 /* Handle a 20 bit SOP field for spop0. */
2976 case 'O':
2977 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2978 if (strict && the_insn.exp.X_op != O_constant)
2979 break;
252b5132 2980 s = expr_end;
0f4f8b56 2981 CHECK_FIELD (num, 1048575, 0, strict);
252b5132
RH		 2982 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
2983 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2984
2985 /* Handle a 15bit SOP field for spop1. */
2986 case 'o':
2987 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2988 if (strict && the_insn.exp.X_op != O_constant)
2989 break;
252b5132 2990 s = expr_end;
0f4f8b56 2991 CHECK_FIELD (num, 32767, 0, strict);
252b5132
RH		 2992 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
2993
2994 /* Handle a 10bit SOP field for spop3. */
2995 case '0':
2996 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 2997 if (strict && the_insn.exp.X_op != O_constant)
2998 break;
252b5132 2999 s = expr_end;
0f4f8b56 3000 CHECK_FIELD (num, 1023, 0, strict);
252b5132
RH		 3001 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
3002 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3003
3004 /* Handle a 15 bit SOP field for spop2. */
3005 case '1':
3006 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3007 if (strict && the_insn.exp.X_op != O_constant)
3008 break;
252b5132 3009 s = expr_end;
0f4f8b56 3010 CHECK_FIELD (num, 32767, 0, strict);
252b5132
RH		 3011 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
3012 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3013
3014 /* Handle a 3-bit co-processor ID field. */
3015 case 'u':
3016 if (*s++ != ',')
3017 as_bad (_("Invalid COPR identifier"));
3018 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3019 if (strict && the_insn.exp.X_op != O_constant)
3020 break;
252b5132 3021 s = expr_end;
0f4f8b56 3022 CHECK_FIELD (num, 7, 0, strict);
252b5132
RH		 3023 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3024
3025 /* Handle a 22bit SOP field for copr. */
3026 case '2':
3027 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3028 if (strict && the_insn.exp.X_op != O_constant)
3029 break;
252b5132 3030 s = expr_end;
0f4f8b56 3031 CHECK_FIELD (num, 4194303, 0, strict);
252b5132
RH		 3032 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
3033 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3034
3035
3036 /* Handle a source FP operand format completer. */
3037 case 'F':
3038 flag = pa_parse_fp_format (&s);
3039 the_insn.fpof1 = flag;
3040 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3041
3042 /* Handle a destination FP operand format completer. */
3043 case 'G':
3044 /* pa_parse_format needs the ',' prefix. */
3045 s--;
3046 flag = pa_parse_fp_format (&s);
3047 the_insn.fpof2 = flag;
3048 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
3049
9ecc05f0
JL		 3050 /* Handle a source FP operand format completer at 20. */
3051 case 'I':
3052 flag = pa_parse_fp_format (&s);
3053 the_insn.fpof1 = flag;
3054 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3055
97e1581b
JL		 3056 /* Handle a floating point operand format at 26.
3057 Only allows single and double precision. */
3058 case 'H':
3059 flag = pa_parse_fp_format (&s);
3060 switch (flag)
3061 {
3062 case SGL:
3063 opcode |= 0x20;
3064 case DBL:
3065 the_insn.fpof1 = flag;
3066 continue;
252b5132 3067
97e1581b
JL		 3068 case QUAD:
3069 case ILLEGAL_FMT:
3070 default:
3071 as_bad (_("Invalid Floating Point Operand Format."));
3072 }
3073 break;
252b5132 3074
97e1581b
JL		 3075 /* Handle all floating point registers. */
3076 case 'f':
3077 switch (*++args)
3078 {
3079 /* Float target register. */
3080 case 't':
0f4f8b56
JL		 3081 /* This should be more strict. Small steps. */
3082 if (strict && *s != '%')
3083 break;
e7c1f43c 3084 num = pa_parse_number (&s, 0);
97e1581b
JL		 3085 CHECK_FIELD (num, 31, 0, 0);
3086 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
252b5132 3087
97e1581b
JL		 3088 /* Float target register with L/R selection. */
3089 case 'T':
252b5132 3090 {
97e1581b 3091 struct pa_11_fp_reg_struct result;
252b5132 3092
0f4f8b56
JL		 3093 /* This should be more strict. Small steps. */
3094 if (strict && *s != '%')
3095 break;
e7c1f43c 3096 pa_parse_number (&s, &result);
97e1581b
JL		 3097 CHECK_FIELD (result.number_part, 31, 0, 0);
3098 opcode |= result.number_part;
b53fcc20 3099
97e1581b
JL		 3100 /* 0x30 opcodes are FP arithmetic operation opcodes
3101 and need to be turned into 0x38 opcodes. This
3102 is not necessary for loads/stores. */
3103 if (need_pa11_opcode (&the_insn, &result)
3104 && ((opcode & 0xfc000000) == 0x30000000))
3105 opcode |= 1 << 27;
b53fcc20 3106
97e1581b
JL		 3107 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
3108 }
252b5132 3109
97e1581b
JL		 3110 /* Float operand 1. */
3111 case 'a':
3112 {
3113 struct pa_11_fp_reg_struct result;
252b5132 3114
0f4f8b56
JL		 3115 /* This should be more strict. Small steps. */
3116 if (strict && *s != '%')
3117 break;
e7c1f43c 3118 pa_parse_number (&s, &result);
97e1581b
JL		 3119 CHECK_FIELD (result.number_part, 31, 0, 0);
3120 opcode |= result.number_part << 21;
3121 if (need_pa11_opcode (&the_insn, &result))
3122 {
3123 opcode |= (result.l_r_select & 1) << 7;
3124 opcode |= 1 << 27;
3125 }
3126 continue;
3127 }
252b5132 3128
97e1581b
JL		 3129 /* Float operand 1 with L/R selection. */
3130 case 'A':
252b5132 3131 {
97e1581b
JL		 3132 struct pa_11_fp_reg_struct result;
3133
0f4f8b56
JL		 3134 /* This should be more strict. Small steps. */
3135 if (strict && *s != '%')
3136 break;
e7c1f43c 3137 pa_parse_number (&s, &result);
97e1581b
JL		 3138 CHECK_FIELD (result.number_part, 31, 0, 0);
3139 opcode |= result.number_part << 21;
3140 opcode |= (result.l_r_select & 1) << 7;
3141 continue;
252b5132 3142 }
252b5132 3143
97e1581b
JL		 3144 /* Float operand 2. */
3145 case 'b':
3146 {
3147 struct pa_11_fp_reg_struct result;
252b5132 3148
0f4f8b56
JL		 3149 /* This should be more strict. Small steps. */
3150 if (strict && *s != '%')
3151 break;
e7c1f43c 3152 pa_parse_number (&s, &result);
97e1581b
JL		 3153 CHECK_FIELD (result.number_part, 31, 0, 0);
3154 opcode |= (result.number_part & 0x1f) << 16;
3155 if (need_pa11_opcode (&the_insn, &result))
3156 {
3157 opcode |= (result.l_r_select & 1) << 12;
3158 opcode |= 1 << 27;
3159 }
3160 continue;
3161 }
3162
3163 /* Float operand 2 with L/R selection. */
3164 case 'B':
252b5132 3165 {
97e1581b
JL		 3166 struct pa_11_fp_reg_struct result;
3167
0f4f8b56
JL		 3168 /* This should be more strict. Small steps. */
3169 if (strict && *s != '%')
3170 break;
e7c1f43c 3171 pa_parse_number (&s, &result);
97e1581b
JL		 3172 CHECK_FIELD (result.number_part, 31, 0, 0);
3173 opcode |= (result.number_part & 0x1f) << 16;
252b5132 3174 opcode |= (result.l_r_select & 1) << 12;
97e1581b 3175 continue;
252b5132 3176 }
252b5132 3177
97e1581b
JL		 3178 /* Float operand 3 for fmpyfadd, fmpynfadd. */
3179 case 'C':
3180 {
3181 struct pa_11_fp_reg_struct result;
3182 int regnum;
3183
0f4f8b56
JL		 3184 /* This should be more strict. Small steps. */
3185 if (strict && *s != '%')
3186 break;
e7c1f43c 3187 pa_parse_number (&s, &result);
97e1581b
JL		 3188 CHECK_FIELD (result.number_part, 31, 0, 0);
3189 opcode |= (result.number_part & 0x1c) << 11;
3190 opcode |= (result.number_part & 0x3) << 9;
3191 opcode |= (result.l_r_select & 1) << 8;
3192 continue;
3193 }
b53fcc20 3194
97e1581b
JL		 3195 /* Float mult operand 1 for fmpyadd, fmpysub */
3196 case 'i':
3197 {
3198 struct pa_11_fp_reg_struct result;
b53fcc20 3199
0f4f8b56
JL		 3200 /* This should be more strict. Small steps. */
3201 if (strict && *s != '%')
3202 break;
e7c1f43c 3203 pa_parse_number (&s, &result);
97e1581b
JL		 3204 CHECK_FIELD (result.number_part, 31, 0, 0);
3205 if (the_insn.fpof1 == SGL)
3206 {
3207 if (result.number_part < 16)
3208 {
3209 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3210 break;
3211 }
252b5132 3212
97e1581b
JL		 3213 result.number_part &= 0xF;
3214 result.number_part |= (result.l_r_select & 1) << 4;
3215 }
3216 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
3217 }
3218
3219 /* Float mult operand 2 for fmpyadd, fmpysub */
3220 case 'j':
252b5132 3221 {
97e1581b
JL		 3222 struct pa_11_fp_reg_struct result;
3223
0f4f8b56
JL		 3224 /* This should be more strict. Small steps. */
3225 if (strict && *s != '%')
3226 break;
e7c1f43c 3227 pa_parse_number (&s, &result);
97e1581b
JL		 3228 CHECK_FIELD (result.number_part, 31, 0, 0);
3229 if (the_insn.fpof1 == SGL)
252b5132 3230 {
97e1581b
JL		 3231 if (result.number_part < 16)
3232 {
3233 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3234 break;
3235 }
3236 result.number_part &= 0xF;
3237 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3238 }
97e1581b 3239 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
252b5132 3240 }
252b5132 3241
97e1581b
JL		 3242 /* Float mult target for fmpyadd, fmpysub */
3243 case 'k':
252b5132 3244 {
97e1581b
JL		 3245 struct pa_11_fp_reg_struct result;
3246
0f4f8b56
JL		 3247 /* This should be more strict. Small steps. */
3248 if (strict && *s != '%')
3249 break;
e7c1f43c 3250 pa_parse_number (&s, &result);
97e1581b
JL		 3251 CHECK_FIELD (result.number_part, 31, 0, 0);
3252 if (the_insn.fpof1 == SGL)
252b5132 3253 {
97e1581b
JL		 3254 if (result.number_part < 16)
3255 {
3256 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3257 break;
3258 }
3259 result.number_part &= 0xF;
3260 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3261 }
97e1581b 3262 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 0);
252b5132 3263 }
252b5132 3264
97e1581b
JL		 3265 /* Float add operand 1 for fmpyadd, fmpysub */
3266 case 'l':
252b5132 3267 {
97e1581b
JL		 3268 struct pa_11_fp_reg_struct result;
3269
0f4f8b56
JL		 3270 /* This should be more strict. Small steps. */
3271 if (strict && *s != '%')
3272 break;
e7c1f43c 3273 pa_parse_number (&s, &result);
97e1581b
JL		 3274 CHECK_FIELD (result.number_part, 31, 0, 0);
3275 if (the_insn.fpof1 == SGL)
252b5132 3276 {
97e1581b
JL		 3277 if (result.number_part < 16)
3278 {
3279 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3280 break;
3281 }
3282 result.number_part &= 0xF;
3283 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3284 }
97e1581b 3285 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
252b5132 3286 }
252b5132 3287
97e1581b
JL		 3288 /* Float add target for fmpyadd, fmpysub */
3289 case 'm':
252b5132 3290 {
97e1581b
JL		 3291 struct pa_11_fp_reg_struct result;
3292
0f4f8b56
JL		 3293 /* This should be more strict. Small steps. */
3294 if (strict && *s != '%')
3295 break;
e7c1f43c 3296 pa_parse_number (&s, &result);
97e1581b
JL		 3297 CHECK_FIELD (result.number_part, 31, 0, 0);
3298 if (the_insn.fpof1 == SGL)
252b5132 3299 {
97e1581b
JL		 3300 if (result.number_part < 16)
3301 {
3302 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3303 break;
3304 }
3305 result.number_part &= 0xF;
3306 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3307 }
97e1581b 3308 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
252b5132 3309 }
252b5132 3310
97e1581b
JL		 3311 default:
3312 abort ();
3313 }
3314 break;
3315
3316 /* Handle L/R register halves like 'x'. */
3317 case 'e':
252b5132
RH		 3318 {
3319 struct pa_11_fp_reg_struct result;
3320
0f4f8b56
JL		 3321 /* This should be more strict. Small steps. */
3322 if (strict && *s != '%')
3323 break;
e7c1f43c 3324 pa_parse_number (&s, &result);
252b5132 3325 CHECK_FIELD (result.number_part, 31, 0, 0);
97e1581b
JL		 3326 opcode |= (result.number_part & 0x1f) << 16;
3327 if (need_pa11_opcode (&the_insn, &result))
252b5132 3328 {
97e1581b 3329 opcode |= (result.l_r_select & 1) << 1;
252b5132 3330 }
97e1581b 3331 continue;
252b5132
RH		 3332 }
3333
252b5132
RH		 3334 default:
3335 abort ();
3336 }
3337 break;
3338 }
3339
3340 failed:
3341 /* Check if the args matched. */
3342 if (match == FALSE)
3343 {
3344 if (&insn[1] - pa_opcodes < (int) NUMOPCODES
3345 && !strcmp (insn->name, insn[1].name))
3346 {
3347 ++insn;
3348 s = argstart;
3349 continue;
3350 }
3351 else
3352 {
3353 as_bad (_("Invalid operands %s"), error_message);
3354 return;
3355 }
3356 }
3357 break;
3358 }
3359
3360 the_insn.opcode = opcode;
3361}
3362
3363/* Turn a string in input_line_pointer into a floating point constant of type
3364 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3365 emitted is stored in *sizeP . An error message or NULL is returned. */
3366
3367#define MAX_LITTLENUMS 6
3368
3369char *
3370md_atof (type, litP, sizeP)
3371 char type;
3372 char *litP;
3373 int *sizeP;
3374{
3375 int prec;
3376 LITTLENUM_TYPE words[MAX_LITTLENUMS];
3377 LITTLENUM_TYPE *wordP;
3378 char *t;
3379
3380 switch (type)
3381 {
3382
3383 case 'f':
3384 case 'F':
3385 case 's':
3386 case 'S':
3387 prec = 2;
3388 break;
3389
3390 case 'd':
3391 case 'D':
3392 case 'r':
3393 case 'R':
3394 prec = 4;
3395 break;
3396
3397 case 'x':
3398 case 'X':
3399 prec = 6;
3400 break;
3401
3402 case 'p':
3403 case 'P':
3404 prec = 6;
3405 break;
3406
3407 default:
3408 *sizeP = 0;
3409 return _("Bad call to MD_ATOF()");
3410 }
3411 t = atof_ieee (input_line_pointer, type, words);
3412 if (t)
3413 input_line_pointer = t;
3414 *sizeP = prec * sizeof (LITTLENUM_TYPE);
3415 for (wordP = words; prec--;)
3416 {
3417 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
3418 litP += sizeof (LITTLENUM_TYPE);
3419 }
3420 return NULL;
3421}
3422
3423/* Write out big-endian. */
3424
3425void
3426md_number_to_chars (buf, val, n)
3427 char *buf;
3428 valueT val;
3429 int n;
3430{
3431 number_to_chars_bigendian (buf, val, n);
3432}
3433
3434/* Translate internal representation of relocation info to BFD target
3435 format. */
3436
3437arelent **
3438tc_gen_reloc (section, fixp)
3439 asection *section;
3440 fixS *fixp;
3441{
3442 arelent *reloc;
3443 struct hppa_fix_struct *hppa_fixp;
3444 bfd_reloc_code_real_type code;
3445 static arelent *no_relocs = NULL;
3446 arelent **relocs;
3447 bfd_reloc_code_real_type **codes;
3448 int n_relocs;
3449 int i;
3450
3451 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
3452 if (fixp->fx_addsy == 0)
3453 return &no_relocs;
3454 assert (hppa_fixp != 0);
3455 assert (section != 0);
3456
3457 reloc = (arelent *) xmalloc (sizeof (arelent));
3458
a0f75b47
ILT		 3459 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3460 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3461 codes = (bfd_reloc_code_real_type **) hppa_gen_reloc_type (stdoutput,
3462 fixp->fx_r_type,
3463 hppa_fixp->fx_r_format,
3464 hppa_fixp->fx_r_field,
3465 fixp->fx_subsy != NULL,
a0f75b47 3466 symbol_get_bfdsym (fixp->fx_addsy));
252b5132
RH		 3467
3468 if (codes == NULL)
3469 abort ();
3470
3471 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
3472 ;
3473
3474 relocs = (arelent **) xmalloc (sizeof (arelent *) * n_relocs + 1);
3475 reloc = (arelent *) xmalloc (sizeof (arelent) * n_relocs);
3476 for (i = 0; i < n_relocs; i++)
3477 relocs[i] = &reloc[i];
3478
3479 relocs[n_relocs] = NULL;
3480
3481#ifdef OBJ_ELF
3482 switch (fixp->fx_r_type)
3483 {
3484 default:
3485 assert (n_relocs == 1);
3486
3487 code = *codes[0];
3488
a0f75b47
ILT		 3489 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3490 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3491 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
3492 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
3493 reloc->addend = 0; /* default */
3494
3495 assert (reloc->howto && code == reloc->howto->type);
3496
3497 /* Now, do any processing that is dependent on the relocation type. */
3498 switch (code)
3499 {
3500 case R_PARISC_DLTREL21L:
3501 case R_PARISC_DLTREL14R:
3502 case R_PARISC_DLTREL14F:
3503 case R_PARISC_PLABEL32:
3504 case R_PARISC_PLABEL21L:
3505 case R_PARISC_PLABEL14R:
3506 /* For plabel relocations, the addend of the
3507 relocation should be either 0 (no static link) or 2
3508 (static link required).
3509
3510 FIXME: We always assume no static link!
3511
3512 We also slam a zero addend into the DLT relative relocs;
3513 it doesn't make a lot of sense to use any addend since
3514 it gets you a different (eg unknown) DLT entry. */
3515 reloc->addend = 0;
3516 break;
3517
3518 case R_PARISC_PCREL21L:
3519 case R_PARISC_PCREL17R:
3520 case R_PARISC_PCREL17F:
3521 case R_PARISC_PCREL17C:
3522 case R_PARISC_PCREL14R:
3523 case R_PARISC_PCREL14F:
3524 /* The constant is stored in the instruction. */
3525 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3526 break;
3527 default:
3528 reloc->addend = fixp->fx_offset;
3529 break;
3530 }
3531 break;
3532 }
3533#else /* OBJ_SOM */
3534
3535 /* Walk over reach relocation returned by the BFD backend. */
3536 for (i = 0; i < n_relocs; i++)
3537 {
3538 code = *codes[i];
3539
398e8c25
ILT		 3540 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3541 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3542 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
3543 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3544
3545 switch (code)
3546 {
3547 case R_COMP2:
3548 /* The only time we ever use a R_COMP2 fixup is for the difference
3549 of two symbols. With that in mind we fill in all four
3550 relocs now and break out of the loop. */
3551 assert (i == 1);
993142d5 3552 relocs[0]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3553 relocs[0]->howto = bfd_reloc_type_lookup (stdoutput, *codes[0]);
3554 relocs[0]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3555 relocs[0]->addend = 0;
993142d5
ILT		 3556 relocs[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3557 *relocs[1]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3558 relocs[1]->howto = bfd_reloc_type_lookup (stdoutput, *codes[1]);
3559 relocs[1]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3560 relocs[1]->addend = 0;
993142d5
ILT		 3561 relocs[2]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3562 *relocs[2]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);
252b5132
RH		 3563 relocs[2]->howto = bfd_reloc_type_lookup (stdoutput, *codes[2]);
3564 relocs[2]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3565 relocs[2]->addend = 0;
993142d5 3566 relocs[3]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3567 relocs[3]->howto = bfd_reloc_type_lookup (stdoutput, *codes[3]);
3568 relocs[3]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3569 relocs[3]->addend = 0;
993142d5 3570 relocs[4]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3571 relocs[4]->howto = bfd_reloc_type_lookup (stdoutput, *codes[4]);
3572 relocs[4]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3573 relocs[4]->addend = 0;
3574 goto done;
3575 case R_PCREL_CALL:
3576 case R_ABS_CALL:
3577 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3578 break;
3579
3580 case R_DLT_REL:
3581 case R_DATA_PLABEL:
3582 case R_CODE_PLABEL:
3583 /* For plabel relocations, the addend of the
3584 relocation should be either 0 (no static link) or 2
3585 (static link required).
3586
3587 FIXME: We always assume no static link!
3588
3589 We also slam a zero addend into the DLT relative relocs;
3590 it doesn't make a lot of sense to use any addend since
3591 it gets you a different (eg unknown) DLT entry. */
3592 relocs[i]->addend = 0;
3593 break;
3594
3595 case R_N_MODE:
3596 case R_S_MODE:
3597 case R_D_MODE:
3598 case R_R_MODE:
3599 case R_FSEL:
3600 case R_LSEL:
3601 case R_RSEL:
3602 case R_BEGIN_BRTAB:
3603 case R_END_BRTAB:
3604 case R_BEGIN_TRY:
3605 case R_N0SEL:
3606 case R_N1SEL:
3607 /* There is no symbol or addend associated with these fixups. */
993142d5
ILT		 3608 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3609 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
252b5132
RH		 3610 relocs[i]->addend = 0;
3611 break;
3612
3613 case R_END_TRY:
3614 case R_ENTRY:
3615 case R_EXIT:
3616 /* There is no symbol associated with these fixups. */
993142d5
ILT		 3617 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3618 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
252b5132
RH		 3619 relocs[i]->addend = fixp->fx_offset;
3620 break;
3621
3622 default:
3623 relocs[i]->addend = fixp->fx_offset;
3624 }
3625 }
3626
3627 done:
3628#endif
3629
3630 return relocs;
3631}
3632
3633/* Process any machine dependent frag types. */
3634
3635void
3636md_convert_frag (abfd, sec, fragP)
3637 register bfd *abfd;
3638 register asection *sec;
3639 register fragS *fragP;
3640{
3641 unsigned int address;
3642
3643 if (fragP->fr_type == rs_machine_dependent)
3644 {
3645 switch ((int) fragP->fr_subtype)
3646 {
3647 case 0:
3648 fragP->fr_type = rs_fill;
3649 know (fragP->fr_var == 1);
3650 know (fragP->fr_next);
3651 address = fragP->fr_address + fragP->fr_fix;
3652 if (address % fragP->fr_offset)
3653 {
3654 fragP->fr_offset =
3655 fragP->fr_next->fr_address
3656 - fragP->fr_address
3657 - fragP->fr_fix;
3658 }
3659 else
3660 fragP->fr_offset = 0;
3661 break;
3662 }
3663 }
3664}
3665
3666/* Round up a section size to the appropriate boundary. */
3667
3668valueT
3669md_section_align (segment, size)
3670 asection *segment;
3671 valueT size;
3672{
3673 int align = bfd_get_section_alignment (stdoutput, segment);
3674 int align2 = (1 << align) - 1;
3675
3676 return (size + align2) & ~align2;
3677}
3678
3679/* Return the approximate size of a frag before relaxation has occurred. */
3680int
3681md_estimate_size_before_relax (fragP, segment)
3682 register fragS *fragP;
3683 asection *segment;
3684{
3685 int size;
3686
3687 size = 0;
3688
3689 while ((fragP->fr_fix + size) % fragP->fr_offset)
3690 size++;
3691
3692 return size;
3693}
3694\f
3695CONST char *md_shortopts = "";
3696struct option md_longopts[] = {
3697 {NULL, no_argument, NULL, 0}
3698};
3699size_t md_longopts_size = sizeof(md_longopts);
3700
3701int
3702md_parse_option (c, arg)
3703 int c;
3704 char *arg;
3705{
3706 return 0;
3707}
3708
3709void
3710md_show_usage (stream)
3711 FILE *stream;
3712{
3713}
3714\f
3715/* We have no need to default values of symbols. */
3716
3717symbolS *
3718md_undefined_symbol (name)
3719 char *name;
3720{
3721 return 0;
3722}
3723
3724/* Apply a fixup to an instruction. */
3725
3726int
3727md_apply_fix (fixP, valp)
3728 fixS *fixP;
3729 valueT *valp;
3730{
3731 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
3732 struct hppa_fix_struct *hppa_fixP;
3733 long new_val, result = 0;
3734 unsigned int w1, w2, w, resulti;
3735
3736 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
3737 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
3738 never be "applied" (they are just markers). Likewise for
3739 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
3740#ifdef OBJ_SOM
3741 if (fixP->fx_r_type == R_HPPA_ENTRY
3742 || fixP->fx_r_type == R_HPPA_EXIT
3743 || fixP->fx_r_type == R_HPPA_BEGIN_BRTAB
3744 || fixP->fx_r_type == R_HPPA_END_BRTAB
3745 || fixP->fx_r_type == R_HPPA_BEGIN_TRY)
3746 return 1;
3747
3748 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
3749 fixups are considered not adjustable, which in turn causes
3750 adjust_reloc_syms to not set fx_offset. Ugh. */
3751 if (fixP->fx_r_type == R_HPPA_END_TRY)
3752 {
3753 fixP->fx_offset = *valp;
3754 return 1;
3755 }
3756#endif
3757
3758 /* There should have been an HPPA specific fixup associated
3759 with the GAS fixup. */
3760 if (hppa_fixP)
3761 {
3762 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
3763 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
3764
3765 /* If there is a symbol associated with this fixup, then it's something
3766 which will need a SOM relocation (except for some PC-relative relocs).
3767 In such cases we should treat the "val" or "addend" as zero since it
3768 will be added in as needed from fx_offset in tc_gen_reloc. */
3769 if ((fixP->fx_addsy != NULL
3770 || fixP->fx_r_type == R_HPPA_NONE)
3771#ifdef OBJ_SOM
3772 && fmt != 32
3773#endif
3774 )
90700a53 3775 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
252b5132
RH		 3776#ifdef OBJ_SOM
3777 /* These field selectors imply that we do not want an addend. */
3778 else if (hppa_fixP->fx_r_field == e_psel
3779 || hppa_fixP->fx_r_field == e_rpsel
3780 || hppa_fixP->fx_r_field == e_lpsel
3781 || hppa_fixP->fx_r_field == e_tsel
3782 || hppa_fixP->fx_r_field == e_rtsel
3783 || hppa_fixP->fx_r_field == e_ltsel)
90700a53 3784 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
252b5132
RH		 3785 /* This is truely disgusting. The machine independent code blindly
3786 adds in the value of the symbol being relocated against. Damn! */
3787 else if (fmt == 32
3788 && fixP->fx_addsy != NULL
3789 && S_GET_SEGMENT (fixP->fx_addsy) != bfd_com_section_ptr)
3790 new_val = hppa_field_adjust (*valp - S_GET_VALUE (fixP->fx_addsy),
3791 0, hppa_fixP->fx_r_field);
3792#endif
3793 else
3794 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
3795
3796 /* Handle pc-relative exceptions from above. */
3797#define arg_reloc_stub_needed(CALLER, CALLEE) \
3798 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
90700a53 3799 if ((fmt == 12 || fmt == 17 || fmt == 22)
252b5132
RH		 3800 && fixP->fx_addsy
3801 && fixP->fx_pcrel
49863f82 3802#ifdef OBJ_SOM
252b5132 3803 && !arg_reloc_stub_needed ((long) ((obj_symbol_type *)
a0f75b47
ILT		 3804 symbol_get_bfdsym (fixP->fx_addsy))->tc_data.ap.hppa_arg_reloc,
3805 hppa_fixP->fx_arg_reloc)
49863f82 3806#endif
90700a53 3807 && (((int)(*valp) > -262144 && (int)(*valp) < 262143) && fmt != 22)
252b5132
RH		 3808 && S_GET_SEGMENT (fixP->fx_addsy) == hppa_fixP->segment
3809 && !(fixP->fx_subsy
3810 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
3811
3812 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
3813#undef arg_reloc_stub_needed
3814
3815 switch (fmt)
3816 {
3817 /* Handle all opcodes with the 'j' operand type. */
3818 case 14:
3819 CHECK_FIELD (new_val, 8191, -8192, 0);
3820
3821 /* Mask off 14 bits to be changed. */
3822 bfd_put_32 (stdoutput,
3823 bfd_get_32 (stdoutput, buf) & 0xffffc000,
3824 buf);
3825 low_sign_unext (new_val, 14, &resulti);
3826 result = resulti;
3827 break;
3828
3829 /* Handle all opcodes with the 'k' operand type. */
3830 case 21:
3831 CHECK_FIELD (new_val, 2097152, 0, 0);
3832
3833 /* Mask off 21 bits to be changed. */
3834 bfd_put_32 (stdoutput,
3835 bfd_get_32 (stdoutput, buf) & 0xffe00000,
3836 buf);
3837 dis_assemble_21 (new_val, &resulti);
3838 result = resulti;
3839 break;
3840
3841 /* Handle all the opcodes with the 'i' operand type. */
3842 case 11:
3843 CHECK_FIELD (new_val, 1023, -1023, 0);
3844
3845 /* Mask off 11 bits to be changed. */
3846 bfd_put_32 (stdoutput,
3847 bfd_get_32 (stdoutput, buf) & 0xffff800,
3848 buf);
3849 low_sign_unext (new_val, 11, &resulti);
3850 result = resulti;
3851 break;
3852
3853 /* Handle all the opcodes with the 'w' operand type. */
3854 case 12:
3855 CHECK_FIELD (new_val, 8199, -8184, 0);
3856
3857 /* Mask off 11 bits to be changed. */
3858 sign_unext ((new_val - 8) >> 2, 12, &resulti);
3859 bfd_put_32 (stdoutput,
3860 bfd_get_32 (stdoutput, buf) & 0xffffe002,
3861 buf);
3862
3863 dis_assemble_12 (resulti, &w1, &w);
3864 result = ((w1 << 2) | w);
3865 break;
3866
3867 /* Handle some of the opcodes with the 'W' operand type. */
3868 case 17:
3869 {
3870 int distance = *valp;
3871
3872 CHECK_FIELD (new_val, 262143, -262144, 0);
3873
3874 /* If this is an absolute branch (ie no link) with an out of
3875 range target, then we want to complain. */
3876 if (fixP->fx_r_type == R_HPPA_PCREL_CALL
3877 && (distance > 262143 || distance < -262144)
3878 && (bfd_get_32 (stdoutput, buf) & 0xffe00000) == 0xe8000000)
3879 CHECK_FIELD (distance, 262143, -262144, 0);
3880
3881 /* Mask off 17 bits to be changed. */
3882 bfd_put_32 (stdoutput,
3883 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
3884 buf);
3885 sign_unext ((new_val - 8) >> 2, 17, &resulti);
3886 dis_assemble_17 (resulti, &w1, &w2, &w);
3887 result = ((w2 << 2) | (w1 << 16) | w);
3888 break;
3889 }
3890
3891 case 32:
3892 result = 0;
3893 bfd_put_32 (stdoutput, new_val, buf);
3894 break;
3895
3896 default:
3897 as_bad (_("Unknown relocation encountered in md_apply_fix."));
3898 return 0;
3899 }
3900
3901 /* Insert the relocation. */
3902 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
3903 return 1;
3904 }
3905 else
3906 {
3907 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
3908 (unsigned int) fixP, fixP->fx_r_type);
3909 return 0;
3910 }
3911}
3912
3913/* Exactly what point is a PC-relative offset relative TO?
3914 On the PA, they're relative to the address of the offset. */
3915
3916long
3917md_pcrel_from (fixP)
3918 fixS *fixP;
3919{
3920 return fixP->fx_where + fixP->fx_frag->fr_address;
3921}
3922
3923/* Return nonzero if the input line pointer is at the end of
3924 a statement. */
3925
3926static int
3927is_end_of_statement ()
3928{
3929 return ((*input_line_pointer == '\n')
3930 || (*input_line_pointer == ';')
3931 || (*input_line_pointer == '!'));
3932}
3933
3934/* Read a number from S. The number might come in one of many forms,
3935 the most common will be a hex or decimal constant, but it could be
3936 a pre-defined register (Yuk!), or an absolute symbol.
3937
3938 Return a number or -1 for failure.
3939
3940 When parsing PA-89 FP register numbers RESULT will be
3941 the address of a structure to return information about
3942 L/R half of FP registers, store results there as appropriate.
3943
3944 pa_parse_number can not handle negative constants and will fail
3945 horribly if it is passed such a constant. */
3946
3947static int
3948pa_parse_number (s, result)
3949 char **s;
3950 struct pa_11_fp_reg_struct *result;
3951{
3952 int num;
3953 char *name;
3954 char c;
3955 symbolS *sym;
3956 int status;
3957 char *p = *s;
3958
3959 /* Skip whitespace before the number. */
3960 while (*p == ' ' || *p == '\t')
3961 p = p + 1;
3962
3963 /* Store info in RESULT if requested by caller. */
3964 if (result)
3965 {
3966 result->number_part = -1;
3967 result->l_r_select = -1;
3968 }
3969 num = -1;
3970
3971 if (isdigit (*p))
3972 {
3973 /* Looks like a number. */
3974 num = 0;
3975
3976 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
3977 {
3978 /* The number is specified in hex. */
3979 p += 2;
3980 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
3981 || ((*p >= 'A') && (*p <= 'F')))
3982 {
3983 if (isdigit (*p))
3984 num = num * 16 + *p - '0';
3985 else if (*p >= 'a' && *p <= 'f')
3986 num = num * 16 + *p - 'a' + 10;
3987 else
3988 num = num * 16 + *p - 'A' + 10;
3989 ++p;
3990 }
3991 }
3992 else
3993 {
3994 /* The number is specified in decimal. */
3995 while (isdigit (*p))
3996 {
3997 num = num * 10 + *p - '0';
3998 ++p;
3999 }
4000 }
4001
4002 /* Store info in RESULT if requested by the caller. */
4003 if (result)
4004 {
4005 result->number_part = num;
4006
4007 if (IS_R_SELECT (p))
4008 {
4009 result->l_r_select = 1;
4010 ++p;
4011 }
4012 else if (IS_L_SELECT (p))
4013 {
4014 result->l_r_select = 0;
4015 ++p;
4016 }
4017 else
4018 result->l_r_select = 0;
4019 }
4020 }
4021 else if (*p == '%')
4022 {
4023 /* The number might be a predefined register. */
4024 num = 0;
4025 name = p;
4026 p++;
4027 c = *p;
4028 /* Tege hack: Special case for general registers as the general
4029 code makes a binary search with case translation, and is VERY
4030 slow. */
4031 if (c == 'r')
4032 {
4033 p++;
4034 if (*p == 'e' && *(p + 1) == 't'
4035 && (*(p + 2) == '0' || *(p + 2) == '1'))
4036 {
4037 p += 2;
4038 num = *p - '0' + 28;
4039 p++;
4040 }
4041 else if (*p == 'p')
4042 {
4043 num = 2;
4044 p++;
4045 }
4046 else if (!isdigit (*p))
4047 {
4048 if (print_errors)
4049 as_bad (_("Undefined register: '%s'."), name);
4050 num = -1;
4051 }
4052 else
4053 {
4054 do
4055 num = num * 10 + *p++ - '0';
4056 while (isdigit (*p));
4057 }
4058 }
4059 else
4060 {
4061 /* Do a normal register search. */
4062 while (is_part_of_name (c))
4063 {
4064 p = p + 1;
4065 c = *p;
4066 }
4067 *p = 0;
4068 status = reg_name_search (name);
4069 if (status >= 0)
4070 num = status;
4071 else
4072 {
4073 if (print_errors)
4074 as_bad (_("Undefined register: '%s'."), name);
4075 num = -1;
4076 }
4077 *p = c;
4078 }
4079
4080 /* Store info in RESULT if requested by caller. */
4081 if (result)
4082 {
4083 result->number_part = num;
4084 if (IS_R_SELECT (p - 1))
4085 result->l_r_select = 1;
4086 else if (IS_L_SELECT (p - 1))
4087 result->l_r_select = 0;
4088 else
4089 result->l_r_select = 0;
4090 }
4091 }
4092 else
4093 {
4094 /* And finally, it could be a symbol in the absolute section which
4095 is effectively a constant. */
4096 num = 0;
4097 name = p;
4098 c = *p;
4099 while (is_part_of_name (c))
4100 {
4101 p = p + 1;
4102 c = *p;
4103 }
4104 *p = 0;
4105 if ((sym = symbol_find (name)) != NULL)
4106 {
4107 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
4108 num = S_GET_VALUE (sym);
4109 else
4110 {
4111 if (print_errors)
4112 as_bad (_("Non-absolute symbol: '%s'."), name);
4113 num = -1;
4114 }
4115 }
4116 else
4117 {
4118 /* There is where we'd come for an undefined symbol
4119 or for an empty string. For an empty string we
4120 will return zero. That's a concession made for
4121 compatability with the braindamaged HP assemblers. */
4122 if (*name == 0)
4123 num = 0;
4124 else
4125 {
4126 if (print_errors)
4127 as_bad (_("Undefined absolute constant: '%s'."), name);
4128 num = -1;
4129 }
4130 }
4131 *p = c;
4132
4133 /* Store info in RESULT if requested by caller. */
4134 if (result)
4135 {
4136 result->number_part = num;
4137 if (IS_R_SELECT (p - 1))
4138 result->l_r_select = 1;
4139 else if (IS_L_SELECT (p - 1))
4140 result->l_r_select = 0;
4141 else
4142 result->l_r_select = 0;
4143 }
4144 }
4145
4146 *s = p;
4147 return num;
4148}
4149
4150#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
4151
4152/* Given NAME, find the register number associated with that name, return
4153 the integer value associated with the given name or -1 on failure. */
4154
4155static int
4156reg_name_search (name)
4157 char *name;
4158{
4159 int middle, low, high;
4160 int cmp;
4161
4162 low = 0;
4163 high = REG_NAME_CNT - 1;
4164
4165 do
4166 {
4167 middle = (low + high) / 2;
4168 cmp = strcasecmp (name, pre_defined_registers[middle].name);
4169 if (cmp < 0)
4170 high = middle - 1;
4171 else if (cmp > 0)
4172 low = middle + 1;
4173 else
4174 return pre_defined_registers[middle].value;
4175 }
4176 while (low <= high);
4177
4178 return -1;
4179}
4180
4181
4182/* Return nonzero if the given INSN and L/R information will require
4183 a new PA-1.1 opcode. */
4184
4185static int
4186need_pa11_opcode (insn, result)
4187 struct pa_it *insn;
4188 struct pa_11_fp_reg_struct *result;
4189{
4190 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
4191 {
4192 /* If this instruction is specific to a particular architecture,
4193 then set a new architecture. */
4194 if (bfd_get_mach (stdoutput) < pa11)
4195 {
4196 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, pa11))
4197 as_warn (_("could not update architecture and machine"));
4198 }
4199 return TRUE;
4200 }
4201 else
4202 return FALSE;
4203}
4204
4205/* Parse a condition for a fcmp instruction. Return the numerical
4206 code associated with the condition. */
4207
4208static int
4209pa_parse_fp_cmp_cond (s)
4210 char **s;
4211{
4212 int cond, i;
4213
4214 cond = 0;
4215
4216 for (i = 0; i < 32; i++)
4217 {
4218 if (strncasecmp (*s, fp_cond_map[i].string,
4219 strlen (fp_cond_map[i].string)) == 0)
4220 {
4221 cond = fp_cond_map[i].cond;
4222 *s += strlen (fp_cond_map[i].string);
4223 /* If not a complete match, back up the input string and
4224 report an error. */
4225 if (**s != ' ' && **s != '\t')
4226 {
4227 *s -= strlen (fp_cond_map[i].string);
4228 break;
4229 }
4230 while (**s == ' ' || **s == '\t')
4231 *s = *s + 1;
4232 return cond;
4233 }
4234 }
4235
4236 as_bad (_("Invalid FP Compare Condition: %s"), *s);
4237
4238 /* Advance over the bogus completer. */
4239 while (**s != ',' && **s != ' ' && **s != '\t')
4240 *s += 1;
4241
4242 return 0;
4243}
4244
4245
4246/* Parse an FP operand format completer returning the completer
4247 type. */
4248
4249static fp_operand_format
4250pa_parse_fp_format (s)
4251 char **s;
4252{
4253 int format;
4254
4255 format = SGL;
4256 if (**s == ',')
4257 {
4258 *s += 1;
4259 if (strncasecmp (*s, "sgl", 3) == 0)
4260 {
4261 format = SGL;
4262 *s += 4;
4263 }
4264 else if (strncasecmp (*s, "dbl", 3) == 0)
4265 {
4266 format = DBL;
4267 *s += 4;
4268 }
4269 else if (strncasecmp (*s, "quad", 4) == 0)
4270 {
4271 format = QUAD;
4272 *s += 5;
4273 }
4274 else
4275 {
4276 format = ILLEGAL_FMT;
4277 as_bad (_("Invalid FP Operand Format: %3s"), *s);
4278 }
4279 }
4280
4281 return format;
4282}
4283
4284/* Convert from a selector string into a selector type. */
4285
4286static int
4287pa_chk_field_selector (str)
4288 char **str;
4289{
4290 int middle, low, high;
4291 int cmp;
4292 char name[4];
4293
4294 /* Read past any whitespace. */
4295 /* FIXME: should we read past newlines and formfeeds??? */
4296 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
4297 *str = *str + 1;
4298
4299 if ((*str)[1] == '\'' || (*str)[1] == '%')
4300 name[0] = tolower ((*str)[0]),
4301 name[1] = 0;
4302 else if ((*str)[2] == '\'' || (*str)[2] == '%')
4303 name[0] = tolower ((*str)[0]),
4304 name[1] = tolower ((*str)[1]),
4305 name[2] = 0;
252b5132
RH		 4306 else if ((*str)[3] == '\'' || (*str)[3] == '%')
4307 name[0] = tolower ((*str)[0]),
4308 name[1] = tolower ((*str)[1]),
4309 name[2] = tolower ((*str)[2]),
4310 name[3] = 0;
252b5132
RH		 4311 else
4312 return e_fsel;
4313
4314 low = 0;
4315 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
4316
4317 do
4318 {
4319 middle = (low + high) / 2;
4320 cmp = strcmp (name, selector_table[middle].prefix);
4321 if (cmp < 0)
4322 high = middle - 1;
4323 else if (cmp > 0)
4324 low = middle + 1;
4325 else
4326 {
4327 *str += strlen (name) + 1;
4328#ifndef OBJ_SOM
4329 if (selector_table[middle].field_selector == e_nsel)
4330 return e_fsel;
4331#endif
4332 return selector_table[middle].field_selector;
4333 }
4334 }
4335 while (low <= high);
4336
4337 return e_fsel;
4338}
4339
4340/* Mark (via expr_end) the end of an expression (I think). FIXME. */
4341
4342static int
4343get_expression (str)
4344 char *str;
4345{
4346 char *save_in;
4347 asection *seg;
4348
4349 save_in = input_line_pointer;
4350 input_line_pointer = str;
4351 seg = expression (&the_insn.exp);
4352 if (!(seg == absolute_section
4353 || seg == undefined_section
4354 || SEG_NORMAL (seg)))
4355 {
4356 as_warn (_("Bad segment in expression."));
4357 expr_end = input_line_pointer;
4358 input_line_pointer = save_in;
4359 return 1;
4360 }
4361 expr_end = input_line_pointer;
4362 input_line_pointer = save_in;
4363 return 0;
4364}
4365
4366/* Mark (via expr_end) the end of an absolute expression. FIXME. */
4367static int
4368pa_get_absolute_expression (insn, strp)
4369 struct pa_it *insn;
4370 char **strp;
4371{
4372 char *save_in;
4373
4374 insn->field_selector = pa_chk_field_selector (strp);
4375 save_in = input_line_pointer;
4376 input_line_pointer = *strp;
4377 expression (&insn->exp);
4378 /* This is not perfect, but is a huge improvement over doing nothing.
4379
4380 The PA assembly syntax is ambigious in a variety of ways. Consider
4381 this string "4 %r5" Is that the number 4 followed by the register
4382 r5, or is that 4 MOD 5?
4383
4384 If we get a modulo expresion When looking for an absolute, we try
4385 again cutting off the input string at the first whitespace character. */
4386 if (insn->exp.X_op == O_modulus)
4387 {
4388 char *s, c;
4389 int retval;
4390
4391 input_line_pointer = *strp;
4392 s = *strp;
4393 while (*s != ',' && *s != ' ' && *s != '\t')
4394 s++;
4395
4396 c = *s;
4397 *s = 0;
4398
4399 retval = pa_get_absolute_expression (insn, strp);
4400
4401 input_line_pointer = save_in;
4402 *s = c;
4403 return evaluate_absolute (insn);
4404 }
0f4f8b56
JL		 4405 /* When in strict mode we have a non-match, fix up the pointers
4406 and return to our caller. */
4407 if (insn->exp.X_op != O_constant && strict)
4408 {
4409 expr_end = input_line_pointer;
4410 input_line_pointer = save_in;
4411 return 0;
4412 }
252b5132
RH		 4413 if (insn->exp.X_op != O_constant)
4414 {
4415 as_bad (_("Bad segment (should be absolute)."));
4416 expr_end = input_line_pointer;
4417 input_line_pointer = save_in;
4418 return 0;
4419 }
4420 expr_end = input_line_pointer;
4421 input_line_pointer = save_in;
4422 return evaluate_absolute (insn);
4423}
4424
4425/* Evaluate an absolute expression EXP which may be modified by
4426 the selector FIELD_SELECTOR. Return the value of the expression. */
4427static int
4428evaluate_absolute (insn)
4429 struct pa_it *insn;
4430{
4431 int value;
4432 expressionS exp;
4433 int field_selector = insn->field_selector;
4434
4435 exp = insn->exp;
4436 value = exp.X_add_number;
4437
4438 switch (field_selector)
4439 {
4440 /* No change. */
4441 case e_fsel:
4442 break;
4443
4444 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4445 case e_lssel:
4446 if (value & 0x00000400)
4447 value += 0x800;
4448 value = (value & 0xfffff800) >> 11;
4449 break;
4450
4451 /* Sign extend from bit 21. */
4452 case e_rssel:
4453 if (value & 0x00000400)
4454 value |= 0xfffff800;
4455 else
4456 value &= 0x7ff;
4457 break;
4458
4459 /* Arithmetic shift right 11 bits. */
4460 case e_lsel:
4461 value = (value & 0xfffff800) >> 11;
4462 break;
4463
4464 /* Set bits 0-20 to zero. */
4465 case e_rsel:
4466 value = value & 0x7ff;
4467 break;
4468
4469 /* Add 0x800 and arithmetic shift right 11 bits. */
4470 case e_ldsel:
4471 value += 0x800;
4472 value = (value & 0xfffff800) >> 11;
4473 break;
4474
4475 /* Set bitgs 0-21 to one. */
4476 case e_rdsel:
4477 value |= 0xfffff800;
4478 break;
4479
4480#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
4481 case e_rrsel:
4482 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
4483 break;
4484
4485 case e_lrsel:
4486 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
4487 break;
4488#undef RSEL_ROUND
4489
4490 default:
4491 BAD_CASE (field_selector);
4492 break;
4493 }
4494 return value;
4495}
4496
4497/* Given an argument location specification return the associated
4498 argument location number. */
4499
4500static unsigned int
4501pa_build_arg_reloc (type_name)
4502 char *type_name;
4503{
4504
4505 if (strncasecmp (type_name, "no", 2) == 0)
4506 return 0;
4507 if (strncasecmp (type_name, "gr", 2) == 0)
4508 return 1;
4509 else if (strncasecmp (type_name, "fr", 2) == 0)
4510 return 2;
4511 else if (strncasecmp (type_name, "fu", 2) == 0)
4512 return 3;
4513 else
4514 as_bad (_("Invalid argument location: %s\n"), type_name);
4515
4516 return 0;
4517}
4518
4519/* Encode and return an argument relocation specification for
4520 the given register in the location specified by arg_reloc. */
4521
4522static unsigned int
4523pa_align_arg_reloc (reg, arg_reloc)
4524 unsigned int reg;
4525 unsigned int arg_reloc;
4526{
4527 unsigned int new_reloc;
4528
4529 new_reloc = arg_reloc;
4530 switch (reg)
4531 {
4532 case 0:
4533 new_reloc <<= 8;
4534 break;
4535 case 1:
4536 new_reloc <<= 6;
4537 break;
4538 case 2:
4539 new_reloc <<= 4;
4540 break;
4541 case 3:
4542 new_reloc <<= 2;
4543 break;
4544 default:
4545 as_bad (_("Invalid argument description: %d"), reg);
4546 }
4547
4548 return new_reloc;
4549}
4550
4551/* Parse a PA nullification completer (,n). Return nonzero if the
4552 completer was found; return zero if no completer was found. */
4553
4554static int
4555pa_parse_nullif (s)
4556 char **s;
4557{
4558 int nullif;
4559
4560 nullif = 0;
4561 if (**s == ',')
4562 {
4563 *s = *s + 1;
4564 if (strncasecmp (*s, "n", 1) == 0)
4565 nullif = 1;
4566 else
4567 {
4568 as_bad (_("Invalid Nullification: (%c)"), **s);
4569 nullif = 0;
4570 }
4571 *s = *s + 1;
4572 }
4573
4574 return nullif;
4575}
4576
4577/* Parse a non-negated compare/subtract completer returning the
4578 number (for encoding in instrutions) of the given completer.
4579
4580 ISBRANCH specifies whether or not this is parsing a condition
4581 completer for a branch (vs a nullification completer for a
4582 computational instruction. */
4583
4584static int
4585pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
4586 char **s;
4587 int isbranch;
4588{
4589 int cmpltr;
4590 char *name = *s + 1;
4591 char c;
4592 char *save_s = *s;
4593 int nullify = 0;
4594
4595 cmpltr = 0;
4596 if (**s == ',')
4597 {
4598 *s += 1;
4599 while (**s != ',' && **s != ' ' && **s != '\t')
4600 *s += 1;
4601 c = **s;
4602 **s = 0x00;
4603
4604
4605 if (strcmp (name, "=") == 0)
4606 {
4607 cmpltr = 1;
4608 }
4609 else if (strcmp (name, "<") == 0)
4610 {
4611 cmpltr = 2;
4612 }
4613 else if (strcmp (name, "<=") == 0)
4614 {
4615 cmpltr = 3;
4616 }
4617 else if (strcmp (name, "<<") == 0)
4618 {
4619 cmpltr = 4;
4620 }
4621 else if (strcmp (name, "<<=") == 0)
4622 {
4623 cmpltr = 5;
4624 }
4625 else if (strcasecmp (name, "sv") == 0)
4626 {
4627 cmpltr = 6;
4628 }
4629 else if (strcasecmp (name, "od") == 0)
4630 {
4631 cmpltr = 7;
4632 }
4633 /* If we have something like addb,n then there is no condition
4634 completer. */
4635 else if (strcasecmp (name, "n") == 0 && isbranch)
4636 {
4637 cmpltr = 0;
4638 nullify = 1;
4639 }
4640 else
4641 {
4642 cmpltr = -1;
4643 }
4644 **s = c;
4645 }
4646
4647 /* Reset pointers if this was really a ,n for a branch instruction. */
4648 if (nullify)
4649 *s = save_s;
4650
4651
4652 return cmpltr;
4653}
4654
4655/* Parse a negated compare/subtract completer returning the
4656 number (for encoding in instrutions) of the given completer.
4657
4658 ISBRANCH specifies whether or not this is parsing a condition
4659 completer for a branch (vs a nullification completer for a
4660 computational instruction. */
4661
4662static int
4663pa_parse_neg_cmpsub_cmpltr (s, isbranch)
4664 char **s;
4665 int isbranch;
4666{
4667 int cmpltr;
4668 char *name = *s + 1;
4669 char c;
4670 char *save_s = *s;
4671 int nullify = 0;
4672
4673 cmpltr = 0;
4674 if (**s == ',')
4675 {
4676 *s += 1;
4677 while (**s != ',' && **s != ' ' && **s != '\t')
4678 *s += 1;
4679 c = **s;
4680 **s = 0x00;
4681
4682
4683 if (strcasecmp (name, "tr") == 0)
4684 {
4685 cmpltr = 0;
4686 }
4687 else if (strcmp (name, "<>") == 0)
4688 {
4689 cmpltr = 1;
4690 }
4691 else if (strcmp (name, ">=") == 0)
4692 {
4693 cmpltr = 2;
4694 }
4695 else if (strcmp (name, ">") == 0)
4696 {
4697 cmpltr = 3;
4698 }
4699 else if (strcmp (name, ">>=") == 0)
4700 {
4701 cmpltr = 4;
4702 }
4703 else if (strcmp (name, ">>") == 0)
4704 {
4705 cmpltr = 5;
4706 }
4707 else if (strcasecmp (name, "nsv") == 0)
4708 {
4709 cmpltr = 6;
4710 }
4711 else if (strcasecmp (name, "ev") == 0)
4712 {
4713 cmpltr = 7;
4714 }
4715 /* If we have something like addb,n then there is no condition
4716 completer. */
4717 else if (strcasecmp (name, "n") == 0 && isbranch)
4718 {
4719 cmpltr = 0;
4720 nullify = 1;
4721 }
4722 else
4723 {
4724 cmpltr = -1;
4725 }
4726 **s = c;
4727 }
4728
4729 /* Reset pointers if this was really a ,n for a branch instruction. */
4730 if (nullify)
4731 *s = save_s;
4732
4733
4734 return cmpltr;
4735}
4736
4737
4738/* Parse a non-negated addition completer returning the number
4739 (for encoding in instrutions) of the given completer.
4740
4741 ISBRANCH specifies whether or not this is parsing a condition
4742 completer for a branch (vs a nullification completer for a
4743 computational instruction. */
4744
4745static int
4746pa_parse_nonneg_add_cmpltr (s, isbranch)
4747 char **s;
4748 int isbranch;
4749{
4750 int cmpltr;
4751 char *name = *s + 1;
4752 char c;
4753 char *save_s = *s;
4754
4755 cmpltr = 0;
4756 if (**s == ',')
4757 {
4758 *s += 1;
4759 while (**s != ',' && **s != ' ' && **s != '\t')
4760 *s += 1;
4761 c = **s;
4762 **s = 0x00;
4763 if (strcmp (name, "=") == 0)
4764 {
4765 cmpltr = 1;
4766 }
4767 else if (strcmp (name, "<") == 0)
4768 {
4769 cmpltr = 2;
4770 }
4771 else if (strcmp (name, "<=") == 0)
4772 {
4773 cmpltr = 3;
4774 }
4775 else if (strcasecmp (name, "nuv") == 0)
4776 {
4777 cmpltr = 4;
4778 }
4779 else if (strcasecmp (name, "znv") == 0)
4780 {
4781 cmpltr = 5;
4782 }
4783 else if (strcasecmp (name, "sv") == 0)
4784 {
4785 cmpltr = 6;
4786 }
4787 else if (strcasecmp (name, "od") == 0)
4788 {
4789 cmpltr = 7;
4790 }
4791 /* If we have something like addb,n then there is no condition
4792 completer. */
4793 else if (strcasecmp (name, "n") == 0 && isbranch)
4794 {
4795 cmpltr = 0;
4796 }
4797 else
4798 {
4799 cmpltr = -1;
4800 }
4801 **s = c;
4802 }
4803
4804 /* Reset pointers if this was really a ,n for a branch instruction. */
4805 if (cmpltr == 0 && *name == 'n' && isbranch)
4806 *s = save_s;
4807
4808 return cmpltr;
4809}
4810
4811/* Parse a negated addition completer returning the number
4812 (for encoding in instrutions) of the given completer.
4813
4814 ISBRANCH specifies whether or not this is parsing a condition
4815 completer for a branch (vs a nullification completer for a
4816 computational instruction). */
4817
4818static int
4819pa_parse_neg_add_cmpltr (s, isbranch)
4820 char **s;
4821 int isbranch;
4822{
4823 int cmpltr;
4824 char *name = *s + 1;
4825 char c;
4826 char *save_s = *s;
4827
4828 cmpltr = 0;
4829 if (**s == ',')
4830 {
4831 *s += 1;
4832 while (**s != ',' && **s != ' ' && **s != '\t')
4833 *s += 1;
4834 c = **s;
4835 **s = 0x00;
4836 if (strcasecmp (name, "tr") == 0)
4837 {
4838 cmpltr = 0;
4839 }
4840 else if (strcmp (name, "<>") == 0)
4841 {
4842 cmpltr = 1;
4843 }
4844 else if (strcmp (name, ">=") == 0)
4845 {
4846 cmpltr = 2;
4847 }
4848 else if (strcmp (name, ">") == 0)
4849 {
4850 cmpltr = 3;
4851 }
4852 else if (strcasecmp (name, "uv") == 0)
4853 {
4854 cmpltr = 4;
4855 }
4856 else if (strcasecmp (name, "vnz") == 0)
4857 {
4858 cmpltr = 5;
4859 }
4860 else if (strcasecmp (name, "nsv") == 0)
4861 {
4862 cmpltr = 6;
4863 }
4864 else if (strcasecmp (name, "ev") == 0)
4865 {
4866 cmpltr = 7;
4867 }
4868 /* If we have something like addb,n then there is no condition
4869 completer. */
4870 else if (strcasecmp (name, "n") == 0 && isbranch)
4871 {
4872 cmpltr = 0;
4873 }
4874 else
4875 {
4876 cmpltr = -1;
4877 }
4878 **s = c;
4879 }
4880
4881 /* Reset pointers if this was really a ,n for a branch instruction. */
4882 if (cmpltr == 0 && *name == 'n' && isbranch)
4883 *s = save_s;
4884
4885 return cmpltr;
4886}
4887
49863f82 4888#ifdef OBJ_SOM
252b5132
RH		 4889/* Handle an alignment directive. Special so that we can update the
4890 alignment of the subspace if necessary. */
4891static void
4892pa_align (bytes)
4893{
4894 /* We must have a valid space and subspace. */
4895 pa_check_current_space_and_subspace ();
4896
4897 /* Let the generic gas code do most of the work. */
4898 s_align_bytes (bytes);
4899
4900 /* If bytes is a power of 2, then update the current subspace's
4901 alignment if necessary. */
4902 if (log2 (bytes) != -1)
4903 record_alignment (current_subspace->ssd_seg, log2 (bytes));
4904}
49863f82 4905#endif
252b5132
RH		 4906
4907/* Handle a .BLOCK type pseudo-op. */
4908
4909static void
4910pa_block (z)
4911 int z;
4912{
4913 char *p;
4914 long int temp_fill;
4915 unsigned int temp_size;
4916 unsigned int i;
4917
49863f82 4918#ifdef OBJ_SOM
252b5132
RH		 4919 /* We must have a valid space and subspace. */
4920 pa_check_current_space_and_subspace ();
49863f82 4921#endif
252b5132
RH		 4922
4923 temp_size = get_absolute_expression ();
4924
4925 /* Always fill with zeros, that's what the HP assembler does. */
4926 temp_fill = 0;
4927
4928 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
4929 (relax_substateT) 0, (symbolS *) 0, (offsetT) 1, NULL);
4930 memset (p, 0, temp_size);
4931
4932 /* Convert 2 bytes at a time. */
4933
4934 for (i = 0; i < temp_size; i += 2)
4935 {
4936 md_number_to_chars (p + i,
4937 (valueT) temp_fill,
4938 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
4939 }
4940
4941 pa_undefine_label ();
4942 demand_empty_rest_of_line ();
4943}
4944
4945/* Handle a .begin_brtab and .end_brtab pseudo-op. */
4946
4947static void
4948pa_brtab (begin)
4949 int begin;
4950{
4951
4952#ifdef OBJ_SOM
4953 /* The BRTAB relocations are only availble in SOM (to denote
4954 the beginning and end of branch tables). */
4955 char *where = frag_more (0);
4956
4957 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4958 NULL, (offsetT) 0, NULL,
4959 0, begin ? R_HPPA_BEGIN_BRTAB : R_HPPA_END_BRTAB,
4960 e_fsel, 0, 0, NULL);
4961#endif
4962
4963 demand_empty_rest_of_line ();
4964}
4965
4966/* Handle a .begin_try and .end_try pseudo-op. */
4967
4968static void
4969pa_try (begin)
4970 int begin;
4971{
4972#ifdef OBJ_SOM
4973 expressionS exp;
4974 char *where = frag_more (0);
4975
4976 if (! begin)
4977 expression (&exp);
4978
4979 /* The TRY relocations are only availble in SOM (to denote
4980 the beginning and end of exception handling regions). */
4981
4982 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4983 NULL, (offsetT) 0, begin ? NULL : &exp,
4984 0, begin ? R_HPPA_BEGIN_TRY : R_HPPA_END_TRY,
4985 e_fsel, 0, 0, NULL);
4986#endif
4987
4988 demand_empty_rest_of_line ();
4989}
4990
4991/* Handle a .CALL pseudo-op. This involves storing away information
4992 about where arguments are to be found so the linker can detect
4993 (and correct) argument location mismatches between caller and callee. */
4994
4995static void
4996pa_call (unused)
4997 int unused;
4998{
49863f82 4999#ifdef OBJ_SOM
252b5132
RH		 5000 /* We must have a valid space and subspace. */
5001 pa_check_current_space_and_subspace ();
49863f82 5002#endif
252b5132
RH		 5003
5004 pa_call_args (&last_call_desc);
5005 demand_empty_rest_of_line ();
5006}
5007
5008/* Do the dirty work of building a call descriptor which describes
5009 where the caller placed arguments to a function call. */
5010
5011static void
5012pa_call_args (call_desc)
5013 struct call_desc *call_desc;
5014{
5015 char *name, c, *p;
5016 unsigned int temp, arg_reloc;
5017
5018 while (!is_end_of_statement ())
5019 {
5020 name = input_line_pointer;
5021 c = get_symbol_end ();
5022 /* Process a source argument. */
5023 if ((strncasecmp (name, "argw", 4) == 0))
5024 {
5025 temp = atoi (name + 4);
5026 p = input_line_pointer;
5027 *p = c;
5028 input_line_pointer++;
5029 name = input_line_pointer;
5030 c = get_symbol_end ();
5031 arg_reloc = pa_build_arg_reloc (name);
5032 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
5033 }
5034 /* Process a return value. */
5035 else if ((strncasecmp (name, "rtnval", 6) == 0))
5036 {
5037 p = input_line_pointer;
5038 *p = c;
5039 input_line_pointer++;
5040 name = input_line_pointer;
5041 c = get_symbol_end ();
5042 arg_reloc = pa_build_arg_reloc (name);
5043 call_desc->arg_reloc |= (arg_reloc & 0x3);
5044 }
5045 else
5046 {
5047 as_bad (_("Invalid .CALL argument: %s"), name);
5048 }
5049 p = input_line_pointer;
5050 *p = c;
5051 if (!is_end_of_statement ())
5052 input_line_pointer++;
5053 }
5054}
5055
5056/* Return TRUE if FRAG1 and FRAG2 are the same. */
5057
5058static int
5059is_same_frag (frag1, frag2)
5060 fragS *frag1;
5061 fragS *frag2;
5062{
5063
5064 if (frag1 == NULL)
5065 return (FALSE);
5066 else if (frag2 == NULL)
5067 return (FALSE);
5068 else if (frag1 == frag2)
5069 return (TRUE);
5070 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
5071 return (is_same_frag (frag1, frag2->fr_next));
5072 else
5073 return (FALSE);
5074}
5075
5076#ifdef OBJ_ELF
5077/* Build an entry in the UNWIND subspace from the given function
5078 attributes in CALL_INFO. This is not needed for SOM as using
5079 R_ENTRY and R_EXIT relocations allow the linker to handle building
5080 of the unwind spaces. */
5081
5082static void
5083pa_build_unwind_subspace (call_info)
5084 struct call_info *call_info;
5085{
5086 char *unwind;
5087 asection *seg, *save_seg;
46031ca9 5088 asymbol *sym;
252b5132 5089 subsegT subseg, save_subseg;
46031ca9 5090 int i, reloc;
252b5132
RH		 5091 char c, *p;
5092
9100134c
JL		 5093 if (bfd_get_arch_info (stdoutput)->bits_per_address == 32)
5094 reloc = R_PARISC_DIR32;
46031ca9 5095 else
9100134c 5096 reloc = R_PARISC_SEGREL32;
46031ca9 5097
252b5132
RH		 5098 /* Get into the right seg/subseg. This may involve creating
5099 the seg the first time through. Make sure to have the
5100 old seg/subseg so that we can reset things when we are done. */
252b5132
RH		 5101 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
5102 if (seg == ASEC_NULL)
5103 {
5104 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
5105 bfd_set_section_flags (stdoutput, seg,
5106 SEC_READONLY | SEC_HAS_CONTENTS
b100be66
JL		 5107 | SEC_LOAD | SEC_RELOC | SEC_ALLOC | SEC_DATA);
5108 bfd_set_section_alignment (stdoutput, seg, 2);
252b5132
RH		 5109 }
5110
5111 save_seg = now_seg;
5112 save_subseg = now_subseg;
46031ca9 5113 subseg_set (seg, 0);
252b5132
RH		 5114
5115
5116 /* Get some space to hold relocation information for the unwind
5117 descriptor. */
5118 p = frag_more (4);
5119 md_number_to_chars (p, 0, 4);
5120
5121 /* Relocation info. for start offset of the function. */
5122 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
5123 call_info->start_symbol, (offsetT) 0,
46031ca9
JL		 5124 (expressionS *) NULL, 0, reloc,
5125 e_fsel, 32, 0, NULL);
252b5132
RH		 5126
5127 p = frag_more (4);
5128 md_number_to_chars (p, 0, 4);
5129
5130 /* Relocation info. for end offset of the function.
5131
5132 Because we allow reductions of 32bit relocations for ELF, this will be
5133 reduced to section_sym + offset which avoids putting the temporary
5134 symbol into the symbol table. It (should) end up giving the same
5135 value as call_info->start_symbol + function size once the linker is
5136 finished with its work. */
5137
5138 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
5139 call_info->end_symbol, (offsetT) 0,
46031ca9
JL		 5140 (expressionS *) NULL, 0, reloc,
5141 e_fsel, 32, 0, NULL);
252b5132
RH		 5142
5143 /* Dump it. */
5144 unwind = (char *) &call_info->ci_unwind;
5145 for (i = 8; i < sizeof (struct unwind_table); i++)
5146 {
5147 c = *(unwind + i);
5148 {
5149 FRAG_APPEND_1_CHAR (c);
5150 }
5151 }
5152
5153 /* Return back to the original segment/subsegment. */
5154 subseg_set (save_seg, save_subseg);
5155}
5156#endif
5157
5158/* Process a .CALLINFO pseudo-op. This information is used later
5159 to build unwind descriptors and maybe one day to support
5160 .ENTER and .LEAVE. */
5161
5162static void
5163pa_callinfo (unused)
5164 int unused;
5165{
5166 char *name, c, *p;
5167 int temp;
5168
49863f82 5169#ifdef OBJ_SOM
252b5132
RH		 5170 /* We must have a valid space and subspace. */
5171 pa_check_current_space_and_subspace ();
49863f82 5172#endif
252b5132
RH		 5173
5174 /* .CALLINFO must appear within a procedure definition. */
5175 if (!within_procedure)
5176 as_bad (_(".callinfo is not within a procedure definition"));
5177
5178 /* Mark the fact that we found the .CALLINFO for the
5179 current procedure. */
5180 callinfo_found = TRUE;
5181
5182 /* Iterate over the .CALLINFO arguments. */
5183 while (!is_end_of_statement ())
5184 {
5185 name = input_line_pointer;
5186 c = get_symbol_end ();
5187 /* Frame size specification. */
5188 if ((strncasecmp (name, "frame", 5) == 0))
5189 {
5190 p = input_line_pointer;
5191 *p = c;
5192 input_line_pointer++;
5193 temp = get_absolute_expression ();
5194 if ((temp & 0x3) != 0)
5195 {
5196 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp);
5197 temp = 0;
5198 }
5199
5200 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5201 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
5202
5203 }
5204 /* Entry register (GR, GR and SR) specifications. */
5205 else if ((strncasecmp (name, "entry_gr", 8) == 0))
5206 {
5207 p = input_line_pointer;
5208 *p = c;
5209 input_line_pointer++;
5210 temp = get_absolute_expression ();
5211 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5212 even though %r19 is caller saved. I think this is a bug in
5213 the HP assembler, and we are not going to emulate it. */
5214 if (temp < 3 || temp > 18)
5215 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5216 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
5217 }
5218 else if ((strncasecmp (name, "entry_fr", 8) == 0))
5219 {
5220 p = input_line_pointer;
5221 *p = c;
5222 input_line_pointer++;
5223 temp = get_absolute_expression ();
5224 /* Similarly the HP assembler takes 31 as the high bound even
5225 though %fr21 is the last callee saved floating point register. */
5226 if (temp < 12 || temp > 21)
5227 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5228 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
5229 }
5230 else if ((strncasecmp (name, "entry_sr", 8) == 0))
5231 {
5232 p = input_line_pointer;
5233 *p = c;
5234 input_line_pointer++;
5235 temp = get_absolute_expression ();
5236 if (temp != 3)
5237 as_bad (_("Value for ENTRY_SR must be 3\n"));
5238 }
5239 /* Note whether or not this function performs any calls. */
5240 else if ((strncasecmp (name, "calls", 5) == 0) ||
5241 (strncasecmp (name, "caller", 6) == 0))
5242 {
5243 p = input_line_pointer;
5244 *p = c;
5245 }
5246 else if ((strncasecmp (name, "no_calls", 8) == 0))
5247 {
5248 p = input_line_pointer;
5249 *p = c;
5250 }
5251 /* Should RP be saved into the stack. */
5252 else if ((strncasecmp (name, "save_rp", 7) == 0))
5253 {
5254 p = input_line_pointer;
5255 *p = c;
5256 last_call_info->ci_unwind.descriptor.save_rp = 1;
5257 }
5258 /* Likewise for SP. */
5259 else if ((strncasecmp (name, "save_sp", 7) == 0))
5260 {
5261 p = input_line_pointer;
5262 *p = c;
5263 last_call_info->ci_unwind.descriptor.save_sp = 1;
5264 }
5265 /* Is this an unwindable procedure. If so mark it so
5266 in the unwind descriptor. */
5267 else if ((strncasecmp (name, "no_unwind", 9) == 0))
5268 {
5269 p = input_line_pointer;
5270 *p = c;
5271 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
5272 }
5273 /* Is this an interrupt routine. If so mark it in the
5274 unwind descriptor. */
5275 else if ((strncasecmp (name, "hpux_int", 7) == 0))
5276 {
5277 p = input_line_pointer;
5278 *p = c;
5279 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
5280 }
5281 /* Is this a millicode routine. "millicode" isn't in my
5282 assembler manual, but my copy is old. The HP assembler
5283 accepts it, and there's a place in the unwind descriptor
5284 to drop the information, so we'll accept it too. */
5285 else if ((strncasecmp (name, "millicode", 9) == 0))
5286 {
5287 p = input_line_pointer;
5288 *p = c;
5289 last_call_info->ci_unwind.descriptor.millicode = 1;
5290 }
5291 else
5292 {
5293 as_bad (_("Invalid .CALLINFO argument: %s"), name);
5294 *input_line_pointer = c;
5295 }
5296 if (!is_end_of_statement ())
5297 input_line_pointer++;
5298 }
5299
5300 demand_empty_rest_of_line ();
5301}
5302
5303/* Switch into the code subspace. */
5304
5305static void
5306pa_code (unused)
5307 int unused;
5308{
49863f82 5309#ifdef OBJ_SOM
252b5132
RH		 5310 current_space = is_defined_space ("$TEXT$");
5311 current_subspace
5312 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 5313#endif
252b5132
RH		 5314 s_text (0);
5315 pa_undefine_label ();
5316}
5317
5318/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5319 the .comm pseudo-op has the following symtax:
5320
5321 <label> .comm <length>
5322
5323 where <label> is optional and is a symbol whose address will be the start of
5324 a block of memory <length> bytes long. <length> must be an absolute
5325 expression. <length> bytes will be allocated in the current space
5326 and subspace.
5327
5328 Also note the label may not even be on the same line as the .comm.
5329
5330 This difference in syntax means the colon function will be called
5331 on the symbol before we arrive in pa_comm. colon will set a number
5332 of attributes of the symbol that need to be fixed here. In particular
5333 the value, section pointer, fragment pointer, flags, etc. What
5334 a pain.
5335
5336 This also makes error detection all but impossible. */
5337
5338static void
5339pa_comm (unused)
5340 int unused;
5341{
5342 unsigned int size;
5343 symbolS *symbol;
5344 label_symbol_struct *label_symbol = pa_get_label ();
5345
5346 if (label_symbol)
5347 symbol = label_symbol->lss_label;
5348 else
5349 symbol = NULL;
5350
5351 SKIP_WHITESPACE ();
5352 size = get_absolute_expression ();
5353
5354 if (symbol)
5355 {
5356 S_SET_VALUE (symbol, size);
5357 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
5358 S_SET_EXTERNAL (symbol);
5359
5360 /* colon() has already set the frag to the current location in the
5361 current subspace; we need to reset the fragment to the zero address
5362 fragment. We also need to reset the segment pointer. */
a0f75b47 5363 symbol_set_frag (symbol, &zero_address_frag);
252b5132
RH		 5364 }
5365 demand_empty_rest_of_line ();
5366}
5367
5368/* Process a .END pseudo-op. */
5369
5370static void
5371pa_end (unused)
5372 int unused;
5373{
5374 demand_empty_rest_of_line ();
5375}
5376
5377/* Process a .ENTER pseudo-op. This is not supported. */
5378static void
5379pa_enter (unused)
5380 int unused;
5381{
49863f82 5382#ifdef OBJ_SOM
252b5132
RH		 5383 /* We must have a valid space and subspace. */
5384 pa_check_current_space_and_subspace ();
49863f82 5385#endif
252b5132
RH		 5386
5387 as_bad (_("The .ENTER pseudo-op is not supported"));
5388 demand_empty_rest_of_line ();
5389}
5390
5391/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5392 procesure. */
5393static void
5394pa_entry (unused)
5395 int unused;
5396{
49863f82 5397#ifdef OBJ_SOM
252b5132
RH		 5398 /* We must have a valid space and subspace. */
5399 pa_check_current_space_and_subspace ();
49863f82 5400#endif
252b5132
RH		 5401
5402 if (!within_procedure)
5403 as_bad (_("Misplaced .entry. Ignored."));
5404 else
5405 {
5406 if (!callinfo_found)
5407 as_bad (_("Missing .callinfo."));
5408 }
5409 demand_empty_rest_of_line ();
5410 within_entry_exit = TRUE;
5411
5412#ifdef OBJ_SOM
5413 /* SOM defers building of unwind descriptors until the link phase.
5414 The assembler is responsible for creating an R_ENTRY relocation
5415 to mark the beginning of a region and hold the unwind bits, and
5416 for creating an R_EXIT relocation to mark the end of the region.
5417
5418 FIXME. ELF should be using the same conventions! The problem
5419 is an unwind requires too much relocation space. Hmmm. Maybe
5420 if we split the unwind bits up between the relocations which
5421 denote the entry and exit points. */
5422 if (last_call_info->start_symbol != NULL)
5423 {
5424 char *where = frag_more (0);
5425
5426 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5427 NULL, (offsetT) 0, NULL,
5428 0, R_HPPA_ENTRY, e_fsel, 0, 0,
5429 (int *) &last_call_info->ci_unwind.descriptor);
5430 }
5431#endif
5432}
5433
5434/* Handle a .EQU pseudo-op. */
5435
5436static void
5437pa_equ (reg)
5438 int reg;
5439{
5440 label_symbol_struct *label_symbol = pa_get_label ();
5441 symbolS *symbol;
5442
5443 if (label_symbol)
5444 {
5445 symbol = label_symbol->lss_label;
5446 if (reg)
5447 S_SET_VALUE (symbol, pa_parse_number (&input_line_pointer, 0));
5448 else
5449 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
5450 S_SET_SEGMENT (symbol, bfd_abs_section_ptr);
5451 }
5452 else
5453 {
5454 if (reg)
5455 as_bad (_(".REG must use a label"));
5456 else
5457 as_bad (_(".EQU must use a label"));
5458 }
5459
5460 pa_undefine_label ();
5461 demand_empty_rest_of_line ();
5462}
5463
5464/* Helper function. Does processing for the end of a function. This
5465 usually involves creating some relocations or building special
5466 symbols to mark the end of the function. */
5467
5468static void
5469process_exit ()
5470{
5471 char *where;
5472
5473 where = frag_more (0);
5474
5475#ifdef OBJ_ELF
5476 /* Mark the end of the function, stuff away the location of the frag
5477 for the end of the function, and finally call pa_build_unwind_subspace
5478 to add an entry in the unwind table. */
5479 hppa_elf_mark_end_of_function ();
5480 pa_build_unwind_subspace (last_call_info);
5481#else
5482 /* SOM defers building of unwind descriptors until the link phase.
5483 The assembler is responsible for creating an R_ENTRY relocation
5484 to mark the beginning of a region and hold the unwind bits, and
5485 for creating an R_EXIT relocation to mark the end of the region.
5486
5487 FIXME. ELF should be using the same conventions! The problem
5488 is an unwind requires too much relocation space. Hmmm. Maybe
5489 if we split the unwind bits up between the relocations which
5490 denote the entry and exit points. */
5491 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5492 NULL, (offsetT) 0,
5493 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0,
5494 (int *) &last_call_info->ci_unwind.descriptor + 1);
5495#endif
5496}
5497
5498/* Process a .EXIT pseudo-op. */
5499
5500static void
5501pa_exit (unused)
5502 int unused;
5503{
49863f82 5504#ifdef OBJ_SOM
252b5132
RH		 5505 /* We must have a valid space and subspace. */
5506 pa_check_current_space_and_subspace ();
49863f82 5507#endif
252b5132
RH		 5508
5509 if (!within_procedure)
5510 as_bad (_(".EXIT must appear within a procedure"));
5511 else
5512 {
5513 if (!callinfo_found)
5514 as_bad (_("Missing .callinfo"));
5515 else
5516 {
5517 if (!within_entry_exit)
5518 as_bad (_("No .ENTRY for this .EXIT"));
5519 else
5520 {
5521 within_entry_exit = FALSE;
5522 process_exit ();
5523 }
5524 }
5525 }
5526 demand_empty_rest_of_line ();
5527}
5528
5529/* Process a .EXPORT directive. This makes functions external
5530 and provides information such as argument relocation entries
5531 to callers. */
5532
5533static void
5534pa_export (unused)
5535 int unused;
5536{
5537 char *name, c, *p;
5538 symbolS *symbol;
5539
5540 name = input_line_pointer;
5541 c = get_symbol_end ();
5542 /* Make sure the given symbol exists. */
5543 if ((symbol = symbol_find_or_make (name)) == NULL)
5544 {
5545 as_bad (_("Cannot define export symbol: %s\n"), name);
5546 p = input_line_pointer;
5547 *p = c;
5548 input_line_pointer++;
5549 }
5550 else
5551 {
5552 /* OK. Set the external bits and process argument relocations. */
5553 S_SET_EXTERNAL (symbol);
5554 p = input_line_pointer;
5555 *p = c;
5556 if (!is_end_of_statement ())
5557 {
5558 input_line_pointer++;
5559 pa_type_args (symbol, 1);
5560 }
5561 }
5562
5563 demand_empty_rest_of_line ();
5564}
5565
5566/* Helper function to process arguments to a .EXPORT pseudo-op. */
5567
5568static void
5569pa_type_args (symbolP, is_export)
5570 symbolS *symbolP;
5571 int is_export;
5572{
5573 char *name, c, *p;
5574 unsigned int temp, arg_reloc;
5575 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
a0f75b47 5576 obj_symbol_type *symbol = (obj_symbol_type *) symbol_get_bfdsym (symbolP);
252b5132
RH		 5577
5578 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
5579
5580 {
5581 input_line_pointer += 8;
a0f75b47 5582 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 5583 S_SET_SEGMENT (symbolP, bfd_abs_section_ptr);
5584 type = SYMBOL_TYPE_ABSOLUTE;
5585 }
5586 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
5587 {
5588 input_line_pointer += 4;
5589 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
5590 instead one should be IMPORTing/EXPORTing ENTRY types.
5591
5592 Complain if one tries to EXPORT a CODE type since that's never
5593 done. Both GCC and HP C still try to IMPORT CODE types, so
5594 silently fix them to be ENTRY types. */
a0f75b47 5595 if (S_IS_FUNCTION (symbolP))
252b5132
RH		 5596 {
5597 if (is_export)
a0f75b47
ILT		 5598 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
5599 S_GET_NAME (symbolP));
252b5132 5600
a0f75b47 5601 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5602 type = SYMBOL_TYPE_ENTRY;
5603 }
5604 else
5605 {
a0f75b47 5606 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 5607 type = SYMBOL_TYPE_CODE;
5608 }
5609 }
5610 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
5611 {
5612 input_line_pointer += 4;
a0f75b47 5613 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 5614 type = SYMBOL_TYPE_DATA;
5615 }
5616 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
5617 {
5618 input_line_pointer += 5;
a0f75b47 5619 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5620 type = SYMBOL_TYPE_ENTRY;
5621 }
5622 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
5623 {
5624 input_line_pointer += 9;
a0f75b47 5625 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5626 type = SYMBOL_TYPE_MILLICODE;
5627 }
5628 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
5629 {
5630 input_line_pointer += 6;
a0f75b47 5631 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 5632 type = SYMBOL_TYPE_PLABEL;
5633 }
5634 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
5635 {
5636 input_line_pointer += 8;
a0f75b47 5637 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5638 type = SYMBOL_TYPE_PRI_PROG;
5639 }
5640 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
5641 {
5642 input_line_pointer += 8;
a0f75b47 5643 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 5644 type = SYMBOL_TYPE_SEC_PROG;
5645 }
5646
5647 /* SOM requires much more information about symbol types
5648 than BFD understands. This is how we get this information
5649 to the SOM BFD backend. */
5650#ifdef obj_set_symbol_type
a0f75b47 5651 obj_set_symbol_type (symbol_get_bfdsym (symbolP), (int) type);
252b5132
RH		 5652#endif
5653
5654 /* Now that the type of the exported symbol has been handled,
5655 handle any argument relocation information. */
5656 while (!is_end_of_statement ())
5657 {
5658 if (*input_line_pointer == ',')
5659 input_line_pointer++;
5660 name = input_line_pointer;
5661 c = get_symbol_end ();
5662 /* Argument sources. */
5663 if ((strncasecmp (name, "argw", 4) == 0))
5664 {
5665 p = input_line_pointer;
5666 *p = c;
5667 input_line_pointer++;
5668 temp = atoi (name + 4);
5669 name = input_line_pointer;
5670 c = get_symbol_end ();
5671 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
49863f82 5672#ifdef OBJ_SOM
252b5132 5673 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
49863f82 5674#endif
252b5132
RH		 5675 *input_line_pointer = c;
5676 }
5677 /* The return value. */
5678 else if ((strncasecmp (name, "rtnval", 6)) == 0)
5679 {
5680 p = input_line_pointer;
5681 *p = c;
5682 input_line_pointer++;
5683 name = input_line_pointer;
5684 c = get_symbol_end ();
5685 arg_reloc = pa_build_arg_reloc (name);
49863f82 5686#ifdef OBJ_SOM
252b5132 5687 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
49863f82 5688#endif
252b5132
RH		 5689 *input_line_pointer = c;
5690 }
5691 /* Privelege level. */
5692 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
5693 {
5694 p = input_line_pointer;
5695 *p = c;
5696 input_line_pointer++;
5697 temp = atoi (input_line_pointer);
49863f82 5698#ifdef OBJ_SOM
252b5132 5699 symbol->tc_data.ap.hppa_priv_level = temp;
49863f82 5700#endif
252b5132
RH		 5701 c = get_symbol_end ();
5702 *input_line_pointer = c;
5703 }
5704 else
5705 {
5706 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name);
5707 p = input_line_pointer;
5708 *p = c;
5709 }
5710 if (!is_end_of_statement ())
5711 input_line_pointer++;
5712 }
5713}
5714
5715/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
5716 assembly file must either be defined in the assembly file, or
5717 explicitly IMPORTED from another. */
5718
5719static void
5720pa_import (unused)
5721 int unused;
5722{
5723 char *name, c, *p;
5724 symbolS *symbol;
5725
5726 name = input_line_pointer;
5727 c = get_symbol_end ();
5728
5729 symbol = symbol_find (name);
5730 /* Ugh. We might be importing a symbol defined earlier in the file,
5731 in which case all the code below will really screw things up
5732 (set the wrong segment, symbol flags & type, etc). */
5733 if (symbol == NULL || !S_IS_DEFINED (symbol))
5734 {
5735 symbol = symbol_find_or_make (name);
5736 p = input_line_pointer;
5737 *p = c;
5738
5739 if (!is_end_of_statement ())
5740 {
5741 input_line_pointer++;
5742 pa_type_args (symbol, 0);
5743 }
5744 else
5745 {
5746 /* Sigh. To be compatable with the HP assembler and to help
5747 poorly written assembly code, we assign a type based on
5748 the the current segment. Note only BSF_FUNCTION really
5749 matters, we do not need to set the full SYMBOL_TYPE_* info. */
5750 if (now_seg == text_section)
a0f75b47 5751 symbol_get_bfdsym (symbol)->flags |= BSF_FUNCTION;
252b5132
RH		 5752
5753 /* If the section is undefined, then the symbol is undefined
5754 Since this is an import, leave the section undefined. */
5755 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
5756 }
5757 }
5758 else
5759 {
5760 /* The symbol was already defined. Just eat everything up to
5761 the end of the current statement. */
5762 while (!is_end_of_statement ())
5763 input_line_pointer++;
5764 }
5765
5766 demand_empty_rest_of_line ();
5767}
5768
5769/* Handle a .LABEL pseudo-op. */
5770
5771static void
5772pa_label (unused)
5773 int unused;
5774{
5775 char *name, c, *p;
5776
5777 name = input_line_pointer;
5778 c = get_symbol_end ();
5779
5780 if (strlen (name) > 0)
5781 {
5782 colon (name);
5783 p = input_line_pointer;
5784 *p = c;
5785 }
5786 else
5787 {
5788 as_warn (_("Missing label name on .LABEL"));
5789 }
5790
5791 if (!is_end_of_statement ())
5792 {
5793 as_warn (_("extra .LABEL arguments ignored."));
5794 ignore_rest_of_line ();
5795 }
5796 demand_empty_rest_of_line ();
5797}
5798
5799/* Handle a .LEAVE pseudo-op. This is not supported yet. */
5800
5801static void
5802pa_leave (unused)
5803 int unused;
5804{
49863f82 5805#ifdef OBJ_SOM
252b5132
RH		 5806 /* We must have a valid space and subspace. */
5807 pa_check_current_space_and_subspace ();
49863f82 5808#endif
252b5132
RH		 5809
5810 as_bad (_("The .LEAVE pseudo-op is not supported"));
5811 demand_empty_rest_of_line ();
5812}
5813
5814/* Handle a .LEVEL pseudo-op. */
5815
5816static void
5817pa_level (unused)
5818 int unused;
5819{
5820 char *level;
5821
5822 level = input_line_pointer;
5823 if (strncmp (level, "1.0", 3) == 0)
5824 {
5825 input_line_pointer += 3;
5826 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
5827 as_warn (_("could not set architecture and machine"));
5828 }
5829 else if (strncmp (level, "1.1", 3) == 0)
5830 {
5831 input_line_pointer += 3;
5832 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 11))
5833 as_warn (_("could not set architecture and machine"));
5834 }
46031ca9
JL		 5835 else if (strncmp (level, "2.0w", 4) == 0)
5836 {
5837 input_line_pointer += 4;
5838 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 25))
5839 as_warn (_("could not set architecture and machine"));
5840 }
252b5132
RH		 5841 else if (strncmp (level, "2.0", 3) == 0)
5842 {
5843 input_line_pointer += 3;
5844 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 20))
5845 as_warn (_("could not set architecture and machine"));
5846 }
5847 else
5848 {
5849 as_bad (_("Unrecognized .LEVEL argument\n"));
5850 ignore_rest_of_line ();
5851 }
5852 demand_empty_rest_of_line ();
5853}
5854
5855/* Handle a .ORIGIN pseudo-op. */
5856
5857static void
5858pa_origin (unused)
5859 int unused;
5860{
49863f82 5861#ifdef OBJ_SOM
252b5132
RH		 5862 /* We must have a valid space and subspace. */
5863 pa_check_current_space_and_subspace ();
49863f82 5864#endif
252b5132
RH		 5865
5866 s_org (0);
5867 pa_undefine_label ();
5868}
5869
5870/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
5871 is for static functions. FIXME. Should share more code with .EXPORT. */
5872
5873static void
5874pa_param (unused)
5875 int unused;
5876{
5877 char *name, c, *p;
5878 symbolS *symbol;
5879
5880 name = input_line_pointer;
5881 c = get_symbol_end ();
5882
5883 if ((symbol = symbol_find_or_make (name)) == NULL)
5884 {
5885 as_bad (_("Cannot define static symbol: %s\n"), name);
5886 p = input_line_pointer;
5887 *p = c;
5888 input_line_pointer++;
5889 }
5890 else
5891 {
5892 S_CLEAR_EXTERNAL (symbol);
5893 p = input_line_pointer;
5894 *p = c;
5895 if (!is_end_of_statement ())
5896 {
5897 input_line_pointer++;
5898 pa_type_args (symbol, 0);
5899 }
5900 }
5901
5902 demand_empty_rest_of_line ();
5903}
5904
5905/* Handle a .PROC pseudo-op. It is used to mark the beginning
5906 of a procedure from a syntatical point of view. */
5907
5908static void
5909pa_proc (unused)
5910 int unused;
5911{
5912 struct call_info *call_info;
5913
49863f82 5914#ifdef OBJ_SOM
252b5132
RH		 5915 /* We must have a valid space and subspace. */
5916 pa_check_current_space_and_subspace ();
49863f82 5917#endif
252b5132
RH		 5918
5919 if (within_procedure)
5920 as_fatal (_("Nested procedures"));
5921
5922 /* Reset global variables for new procedure. */
5923 callinfo_found = FALSE;
5924 within_procedure = TRUE;
5925
5926 /* Create another call_info structure. */
5927 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
5928
5929 if (!call_info)
5930 as_fatal (_("Cannot allocate unwind descriptor\n"));
5931
5932 memset (call_info, 0, sizeof (struct call_info));
5933
5934 call_info->ci_next = NULL;
5935
5936 if (call_info_root == NULL)
5937 {
5938 call_info_root = call_info;
5939 last_call_info = call_info;
5940 }
5941 else
5942 {
5943 last_call_info->ci_next = call_info;
5944 last_call_info = call_info;
5945 }
5946
5947 /* set up defaults on call_info structure */
5948
5949 call_info->ci_unwind.descriptor.cannot_unwind = 0;
5950 call_info->ci_unwind.descriptor.region_desc = 1;
5951 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
5952
5953 /* If we got a .PROC pseudo-op, we know that the function is defined
5954 locally. Make sure it gets into the symbol table. */
5955 {
5956 label_symbol_struct *label_symbol = pa_get_label ();
5957
5958 if (label_symbol)
5959 {
5960 if (label_symbol->lss_label)
5961 {
5962 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47 5963 symbol_get_bfdsym (label_symbol->lss_label)->flags |= BSF_FUNCTION;
252b5132
RH		 5964 }
5965 else
5966 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5967 }
5968 else
5969 last_call_info->start_symbol = NULL;
5970 }
5971
5972 demand_empty_rest_of_line ();
5973}
5974
5975/* Process the syntatical end of a procedure. Make sure all the
5976 appropriate pseudo-ops were found within the procedure. */
5977
5978static void
5979pa_procend (unused)
5980 int unused;
5981{
5982
49863f82 5983#ifdef OBJ_SOM
252b5132
RH		 5984 /* We must have a valid space and subspace. */
5985 pa_check_current_space_and_subspace ();
49863f82 5986#endif
252b5132
RH		 5987
5988 /* If we are within a procedure definition, make sure we've
5989 defined a label for the procedure; handle case where the
5990 label was defined after the .PROC directive.
5991
5992 Note there's not need to diddle with the segment or fragment
5993 for the label symbol in this case. We have already switched
5994 into the new $CODE$ subspace at this point. */
5995 if (within_procedure && last_call_info->start_symbol == NULL)
5996 {
5997 label_symbol_struct *label_symbol = pa_get_label ();
5998
5999 if (label_symbol)
6000 {
6001 if (label_symbol->lss_label)
6002 {
6003 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47
ILT		 6004 symbol_get_bfdsym (label_symbol->lss_label)->flags
6005 |= BSF_FUNCTION;
252b5132
RH		 6006#ifdef OBJ_SOM
6007 /* Also handle allocation of a fixup to hold the unwind
6008 information when the label appears after the proc/procend. */
6009 if (within_entry_exit)
6010 {
6011 char *where = frag_more (0);
6012
6013 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
6014 NULL, (offsetT) 0, NULL,
6015 0, R_HPPA_ENTRY, e_fsel, 0, 0,
6016 (int *) &last_call_info->ci_unwind.descriptor);
6017 }
6018#endif
6019 }
6020 else
6021 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6022 }
6023 else
6024 as_bad (_("Missing function name for .PROC"));
6025 }
6026
6027 if (!within_procedure)
6028 as_bad (_("misplaced .procend"));
6029
6030 if (!callinfo_found)
6031 as_bad (_("Missing .callinfo for this procedure"));
6032
6033 if (within_entry_exit)
6034 as_bad (_("Missing .EXIT for a .ENTRY"));
6035
6036#ifdef OBJ_ELF
6037 /* ELF needs to mark the end of each function so that it can compute
6038 the size of the function (apparently its needed in the symbol table). */
6039 hppa_elf_mark_end_of_function ();
6040#endif
6041
6042 within_procedure = FALSE;
6043 demand_empty_rest_of_line ();
6044 pa_undefine_label ();
6045}
6046
49863f82
JL		 6047/* If VALUE is an exact power of two between zero and 2^31, then
6048 return log2 (VALUE). Else return -1. */
6049
6050static int
6051log2 (value)
6052 int value;
6053{
6054 int shift = 0;
6055
6056 while ((1 << shift) != value && shift < 32)
6057 shift++;
6058
6059 if (shift >= 32)
6060 return -1;
6061 else
6062 return shift;
6063}
6064
6065
6066#ifdef OBJ_SOM
6067/* Check to make sure we have a valid space and subspace. */
6068
6069static void
6070pa_check_current_space_and_subspace ()
6071{
6072 if (current_space == NULL)
6073 as_fatal (_("Not in a space.\n"));
6074
6075 if (current_subspace == NULL)
6076 as_fatal (_("Not in a subspace.\n"));
6077}
6078
252b5132
RH		 6079/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
6080 then create a new space entry to hold the information specified
6081 by the parameters to the .SPACE directive. */
6082
6083static sd_chain_struct *
6084pa_parse_space_stmt (space_name, create_flag)
6085 char *space_name;
6086 int create_flag;
6087{
6088 char *name, *ptemp, c;
6089 char loadable, defined, private, sort;
6090 int spnum, temp;
6091 asection *seg = NULL;
6092 sd_chain_struct *space;
6093
6094 /* load default values */
6095 spnum = 0;
6096 sort = 0;
6097 loadable = TRUE;
6098 defined = TRUE;
6099 private = FALSE;
6100 if (strcmp (space_name, "$TEXT$") == 0)
6101 {
6102 seg = pa_def_spaces[0].segment;
6103 defined = pa_def_spaces[0].defined;
6104 private = pa_def_spaces[0].private;
6105 sort = pa_def_spaces[0].sort;
6106 spnum = pa_def_spaces[0].spnum;
6107 }
6108 else if (strcmp (space_name, "$PRIVATE$") == 0)
6109 {
6110 seg = pa_def_spaces[1].segment;
6111 defined = pa_def_spaces[1].defined;
6112 private = pa_def_spaces[1].private;
6113 sort = pa_def_spaces[1].sort;
6114 spnum = pa_def_spaces[1].spnum;
6115 }
6116
6117 if (!is_end_of_statement ())
6118 {
6119 print_errors = FALSE;
6120 ptemp = input_line_pointer + 1;
6121 /* First see if the space was specified as a number rather than
6122 as a name. According to the PA assembly manual the rest of
6123 the line should be ignored. */
6124 temp = pa_parse_number (&ptemp, 0);
6125 if (temp >= 0)
6126 {
6127 spnum = temp;
6128 input_line_pointer = ptemp;
6129 }
6130 else
6131 {
6132 while (!is_end_of_statement ())
6133 {
6134 input_line_pointer++;
6135 name = input_line_pointer;
6136 c = get_symbol_end ();
6137 if ((strncasecmp (name, "spnum", 5) == 0))
6138 {
6139 *input_line_pointer = c;
6140 input_line_pointer++;
6141 spnum = get_absolute_expression ();
6142 }
6143 else if ((strncasecmp (name, "sort", 4) == 0))
6144 {
6145 *input_line_pointer = c;
6146 input_line_pointer++;
6147 sort = get_absolute_expression ();
6148 }
6149 else if ((strncasecmp (name, "unloadable", 10) == 0))
6150 {
6151 *input_line_pointer = c;
6152 loadable = FALSE;
6153 }
6154 else if ((strncasecmp (name, "notdefined", 10) == 0))
6155 {
6156 *input_line_pointer = c;
6157 defined = FALSE;
6158 }
6159 else if ((strncasecmp (name, "private", 7) == 0))
6160 {
6161 *input_line_pointer = c;
6162 private = TRUE;
6163 }
6164 else
6165 {
6166 as_bad (_("Invalid .SPACE argument"));
6167 *input_line_pointer = c;
6168 if (!is_end_of_statement ())
6169 input_line_pointer++;
6170 }
6171 }
6172 }
6173 print_errors = TRUE;
6174 }
6175
6176 if (create_flag && seg == NULL)
6177 seg = subseg_new (space_name, 0);
6178
6179 /* If create_flag is nonzero, then create the new space with
6180 the attributes computed above. Else set the values in
6181 an already existing space -- this can only happen for
6182 the first occurence of a built-in space. */
6183 if (create_flag)
6184 space = create_new_space (space_name, spnum, loadable, defined,
6185 private, sort, seg, 1);
6186 else
6187 {
6188 space = is_defined_space (space_name);
6189 SPACE_SPNUM (space) = spnum;
6190 SPACE_DEFINED (space) = defined & 1;
6191 SPACE_USER_DEFINED (space) = 1;
6192 }
6193
6194#ifdef obj_set_section_attributes
6195 obj_set_section_attributes (seg, defined, private, sort, spnum);
6196#endif
6197
6198 return space;
6199}
6200
6201/* Handle a .SPACE pseudo-op; this switches the current space to the
6202 given space, creating the new space if necessary. */
6203
6204static void
6205pa_space (unused)
6206 int unused;
6207{
6208 char *name, c, *space_name, *save_s;
6209 int temp;
6210 sd_chain_struct *sd_chain;
6211
6212 if (within_procedure)
6213 {
6214 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6215 ignore_rest_of_line ();
6216 }
6217 else
6218 {
6219 /* Check for some of the predefined spaces. FIXME: most of the code
6220 below is repeated several times, can we extract the common parts
6221 and place them into a subroutine or something similar? */
6222 /* FIXME Is this (and the next IF stmt) really right?
6223 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6224 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
6225 {
6226 input_line_pointer += 6;
6227 sd_chain = is_defined_space ("$TEXT$");
6228 if (sd_chain == NULL)
6229 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
6230 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6231 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
6232
6233 current_space = sd_chain;
6234 subseg_set (text_section, sd_chain->sd_last_subseg);
6235 current_subspace
6236 = pa_subsegment_to_subspace (text_section,
6237 sd_chain->sd_last_subseg);
6238 demand_empty_rest_of_line ();
6239 return;
6240 }
6241 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
6242 {
6243 input_line_pointer += 9;
6244 sd_chain = is_defined_space ("$PRIVATE$");
6245 if (sd_chain == NULL)
6246 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
6247 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6248 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
6249
6250 current_space = sd_chain;
6251 subseg_set (data_section, sd_chain->sd_last_subseg);
6252 current_subspace
6253 = pa_subsegment_to_subspace (data_section,
6254 sd_chain->sd_last_subseg);
6255 demand_empty_rest_of_line ();
6256 return;
6257 }
6258 if (!strncasecmp (input_line_pointer,
6259 GDB_DEBUG_SPACE_NAME,
6260 strlen (GDB_DEBUG_SPACE_NAME)))
6261 {
6262 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
6263 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
6264 if (sd_chain == NULL)
6265 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
6266 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6267 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
6268
6269 current_space = sd_chain;
6270
6271 {
6272 asection *gdb_section
6273 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
6274
6275 subseg_set (gdb_section, sd_chain->sd_last_subseg);
6276 current_subspace
6277 = pa_subsegment_to_subspace (gdb_section,
6278 sd_chain->sd_last_subseg);
6279 }
6280 demand_empty_rest_of_line ();
6281 return;
6282 }
6283
6284 /* It could be a space specified by number. */
6285 print_errors = 0;
6286 save_s = input_line_pointer;
6287 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
6288 {
6289 if ((sd_chain = pa_find_space_by_number (temp)))
6290 {
6291 current_space = sd_chain;
6292
6293 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
6294 current_subspace
6295 = pa_subsegment_to_subspace (sd_chain->sd_seg,
6296 sd_chain->sd_last_subseg);
6297 demand_empty_rest_of_line ();
6298 return;
6299 }
6300 }
6301
6302 /* Not a number, attempt to create a new space. */
6303 print_errors = 1;
6304 input_line_pointer = save_s;
6305 name = input_line_pointer;
6306 c = get_symbol_end ();
6307 space_name = xmalloc (strlen (name) + 1);
6308 strcpy (space_name, name);
6309 *input_line_pointer = c;
6310
6311 sd_chain = pa_parse_space_stmt (space_name, 1);
6312 current_space = sd_chain;
6313
6314 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
6315 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
6316 sd_chain->sd_last_subseg);
6317 demand_empty_rest_of_line ();
6318 }
6319}
6320
6321/* Switch to a new space. (I think). FIXME. */
6322
6323static void
6324pa_spnum (unused)
6325 int unused;
6326{
6327 char *name;
6328 char c;
6329 char *p;
6330 sd_chain_struct *space;
6331
6332 name = input_line_pointer;
6333 c = get_symbol_end ();
6334 space = is_defined_space (name);
6335 if (space)
6336 {
6337 p = frag_more (4);
6338 md_number_to_chars (p, SPACE_SPNUM (space), 4);
6339 }
6340 else
6341 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name);
6342
6343 *input_line_pointer = c;
6344 demand_empty_rest_of_line ();
6345}
6346
252b5132
RH		 6347/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6348 given subspace, creating the new subspace if necessary.
6349
6350 FIXME. Should mirror pa_space more closely, in particular how
6351 they're broken up into subroutines. */
6352
6353static void
6354pa_subspace (create_new)
6355 int create_new;
6356{
49863f82 6357 char *name, *ss_name, c;
252b5132
RH		 6358 char loadable, code_only, common, dup_common, zero, sort;
6359 int i, access, space_index, alignment, quadrant, applicable, flags;
6360 sd_chain_struct *space;
6361 ssd_chain_struct *ssd;
6362 asection *section;
6363
6364 if (current_space == NULL)
6365 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6366
6367 if (within_procedure)
6368 {
6369 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6370 ignore_rest_of_line ();
6371 }
6372 else
6373 {
6374 name = input_line_pointer;
6375 c = get_symbol_end ();
6376 ss_name = xmalloc (strlen (name) + 1);
6377 strcpy (ss_name, name);
6378 *input_line_pointer = c;
6379
6380 /* Load default values. */
6381 sort = 0;
6382 access = 0x7f;
6383 loadable = 1;
6384 common = 0;
6385 dup_common = 0;
6386 code_only = 0;
6387 zero = 0;
6388 space_index = ~0;
6389 alignment = 1;
6390 quadrant = 0;
252b5132
RH		 6391
6392 space = current_space;
6393 if (create_new)
6394 ssd = NULL;
6395 else
6396 ssd = is_defined_subspace (ss_name);
6397 /* Allow user to override the builtin attributes of subspaces. But
6398 only allow the attributes to be changed once! */
6399 if (ssd && SUBSPACE_DEFINED (ssd))
6400 {
6401 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
6402 current_subspace = ssd;
6403 if (!is_end_of_statement ())
6404 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6405 demand_empty_rest_of_line ();
6406 return;
6407 }
6408 else
6409 {
6410 /* A new subspace. Load default values if it matches one of
6411 the builtin subspaces. */
6412 i = 0;
6413 while (pa_def_subspaces[i].name)
6414 {
6415 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
6416 {
6417 loadable = pa_def_subspaces[i].loadable;
6418 common = pa_def_subspaces[i].common;
6419 dup_common = pa_def_subspaces[i].dup_common;
6420 code_only = pa_def_subspaces[i].code_only;
6421 zero = pa_def_subspaces[i].zero;
6422 space_index = pa_def_subspaces[i].space_index;
6423 alignment = pa_def_subspaces[i].alignment;
6424 quadrant = pa_def_subspaces[i].quadrant;
6425 access = pa_def_subspaces[i].access;
6426 sort = pa_def_subspaces[i].sort;
252b5132
RH		 6427 break;
6428 }
6429 i++;
6430 }
6431 }
6432
6433 /* We should be working with a new subspace now. Fill in
6434 any information as specified by the user. */
6435 if (!is_end_of_statement ())
6436 {
6437 input_line_pointer++;
6438 while (!is_end_of_statement ())
6439 {
6440 name = input_line_pointer;
6441 c = get_symbol_end ();
6442 if ((strncasecmp (name, "quad", 4) == 0))
6443 {
6444 *input_line_pointer = c;
6445 input_line_pointer++;
6446 quadrant = get_absolute_expression ();
6447 }
6448 else if ((strncasecmp (name, "align", 5) == 0))
6449 {
6450 *input_line_pointer = c;
6451 input_line_pointer++;
6452 alignment = get_absolute_expression ();
6453 if (log2 (alignment) == -1)
6454 {
6455 as_bad (_("Alignment must be a power of 2"));
6456 alignment = 1;
6457 }
6458 }
6459 else if ((strncasecmp (name, "access", 6) == 0))
6460 {
6461 *input_line_pointer = c;
6462 input_line_pointer++;
6463 access = get_absolute_expression ();
6464 }
6465 else if ((strncasecmp (name, "sort", 4) == 0))
6466 {
6467 *input_line_pointer = c;
6468 input_line_pointer++;
6469 sort = get_absolute_expression ();
6470 }
6471 else if ((strncasecmp (name, "code_only", 9) == 0))
6472 {
6473 *input_line_pointer = c;
6474 code_only = 1;
6475 }
6476 else if ((strncasecmp (name, "unloadable", 10) == 0))
6477 {
6478 *input_line_pointer = c;
6479 loadable = 0;
6480 }
6481 else if ((strncasecmp (name, "common", 6) == 0))
6482 {
6483 *input_line_pointer = c;
6484 common = 1;
6485 }
6486 else if ((strncasecmp (name, "dup_comm", 8) == 0))
6487 {
6488 *input_line_pointer = c;
6489 dup_common = 1;
6490 }
6491 else if ((strncasecmp (name, "zero", 4) == 0))
6492 {
6493 *input_line_pointer = c;
6494 zero = 1;
6495 }
6496 else if ((strncasecmp (name, "first", 5) == 0))
6497 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
6498 else
6499 as_bad (_("Invalid .SUBSPACE argument"));
6500 if (!is_end_of_statement ())
6501 input_line_pointer++;
6502 }
6503 }
6504
6505 /* Compute a reasonable set of BFD flags based on the information
6506 in the .subspace directive. */
6507 applicable = bfd_applicable_section_flags (stdoutput);
6508 flags = 0;
6509 if (loadable)
6510 flags |= (SEC_ALLOC | SEC_LOAD);
6511 if (code_only)
6512 flags |= SEC_CODE;
6513 if (common || dup_common)
6514 flags |= SEC_IS_COMMON;
6515
6516 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
6517
6518 /* This is a zero-filled subspace (eg BSS). */
6519 if (zero)
6520 flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
6521
6522 applicable &= flags;
6523
6524 /* If this is an existing subspace, then we want to use the
6525 segment already associated with the subspace.
6526
6527 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
6528 lots of sections. It might be a problem in the PA ELF
6529 code, I do not know yet. For now avoid creating anything
6530 but the "standard" sections for ELF. */
6531 if (create_new)
6532 section = subseg_force_new (ss_name, 0);
6533 else if (ssd)
6534 section = ssd->ssd_seg;
252b5132
RH		 6535 else
6536 section = subseg_new (ss_name, 0);
6537
6538 if (zero)
6539 seg_info (section)->bss = 1;
6540
6541 /* Now set the flags. */
6542 bfd_set_section_flags (stdoutput, section, applicable);
6543
6544 /* Record any alignment request for this section. */
6545 record_alignment (section, log2 (alignment));
6546
6547 /* Set the starting offset for this section. */
6548 bfd_set_section_vma (stdoutput, section,
6549 pa_subspace_start (space, quadrant));
6550
6551 /* Now that all the flags are set, update an existing subspace,
6552 or create a new one. */
6553 if (ssd)
6554
6555 current_subspace = update_subspace (space, ss_name, loadable,
6556 code_only, common, dup_common,
6557 sort, zero, access, space_index,
6558 alignment, quadrant,
6559 section);
6560 else
6561 current_subspace = create_new_subspace (space, ss_name, loadable,
6562 code_only, common,
6563 dup_common, zero, sort,
6564 access, space_index,
6565 alignment, quadrant, section);
6566
6567 demand_empty_rest_of_line ();
6568 current_subspace->ssd_seg = section;
6569 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
6570 }
6571 SUBSPACE_DEFINED (current_subspace) = 1;
6572}
6573
6574
6575/* Create default space and subspace dictionaries. */
6576
6577static void
6578pa_spaces_begin ()
6579{
6580 int i;
6581
6582 space_dict_root = NULL;
6583 space_dict_last = NULL;
6584
6585 i = 0;
6586 while (pa_def_spaces[i].name)
6587 {
6588 char *name;
6589
6590 /* Pick the right name to use for the new section. */
49863f82 6591 name = pa_def_spaces[i].name;
252b5132
RH		 6592
6593 pa_def_spaces[i].segment = subseg_new (name, 0);
6594 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
6595 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
6596 pa_def_spaces[i].private, pa_def_spaces[i].sort,
6597 pa_def_spaces[i].segment, 0);
6598 i++;
6599 }
6600
6601 i = 0;
6602 while (pa_def_subspaces[i].name)
6603 {
6604 char *name;
6605 int applicable, subsegment;
6606 asection *segment = NULL;
6607 sd_chain_struct *space;
6608
6609 /* Pick the right name for the new section and pick the right
6610 subsegment number. */
49863f82
JL		 6611 name = pa_def_subspaces[i].name;
6612 subsegment = 0;
252b5132
RH		 6613
6614 /* Create the new section. */
6615 segment = subseg_new (name, subsegment);
6616
6617
6618 /* For SOM we want to replace the standard .text, .data, and .bss
6619 sections with our own. We also want to set BFD flags for
6620 all the built-in subspaces. */
49863f82 6621 if (!strcmp (pa_def_subspaces[i].name, "$CODE$"))
252b5132
RH		 6622 {
6623 text_section = segment;
6624 applicable = bfd_applicable_section_flags (stdoutput);
6625 bfd_set_section_flags (stdoutput, segment,
6626 applicable & (SEC_ALLOC | SEC_LOAD
6627 | SEC_RELOC | SEC_CODE
6628 | SEC_READONLY
6629 | SEC_HAS_CONTENTS));
6630 }
49863f82 6631 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$"))
252b5132
RH		 6632 {
6633 data_section = segment;
6634 applicable = bfd_applicable_section_flags (stdoutput);
6635 bfd_set_section_flags (stdoutput, segment,
6636 applicable & (SEC_ALLOC | SEC_LOAD
6637 | SEC_RELOC
6638 | SEC_HAS_CONTENTS));
6639
6640
6641 }
49863f82 6642 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$"))
252b5132
RH		 6643 {
6644 bss_section = segment;
6645 applicable = bfd_applicable_section_flags (stdoutput);
6646 bfd_set_section_flags (stdoutput, segment,
6647 applicable & SEC_ALLOC);
6648 }
49863f82 6649 else if (!strcmp (pa_def_subspaces[i].name, "$LIT$"))
252b5132
RH		 6650 {
6651 applicable = bfd_applicable_section_flags (stdoutput);
6652 bfd_set_section_flags (stdoutput, segment,
6653 applicable & (SEC_ALLOC | SEC_LOAD
6654 | SEC_RELOC
6655 | SEC_READONLY
6656 | SEC_HAS_CONTENTS));
6657 }
49863f82 6658 else if (!strcmp (pa_def_subspaces[i].name, "$MILLICODE$"))
252b5132
RH		 6659 {
6660 applicable = bfd_applicable_section_flags (stdoutput);
6661 bfd_set_section_flags (stdoutput, segment,
6662 applicable & (SEC_ALLOC | SEC_LOAD
6663 | SEC_RELOC
6664 | SEC_READONLY
6665 | SEC_HAS_CONTENTS));
6666 }
49863f82 6667 else if (!strcmp (pa_def_subspaces[i].name, "$UNWIND$"))
252b5132
RH		 6668 {
6669 applicable = bfd_applicable_section_flags (stdoutput);
6670 bfd_set_section_flags (stdoutput, segment,
6671 applicable & (SEC_ALLOC | SEC_LOAD
6672 | SEC_RELOC
6673 | SEC_READONLY
6674 | SEC_HAS_CONTENTS));
6675 }
6676
6677 /* Find the space associated with this subspace. */
6678 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
6679 def_space_index].segment);
6680 if (space == NULL)
6681 {
6682 as_fatal (_("Internal error: Unable to find containing space for %s."),
6683 pa_def_subspaces[i].name);
6684 }
6685
6686 create_new_subspace (space, name,
6687 pa_def_subspaces[i].loadable,
6688 pa_def_subspaces[i].code_only,
6689 pa_def_subspaces[i].common,
6690 pa_def_subspaces[i].dup_common,
6691 pa_def_subspaces[i].zero,
6692 pa_def_subspaces[i].sort,
6693 pa_def_subspaces[i].access,
6694 pa_def_subspaces[i].space_index,
6695 pa_def_subspaces[i].alignment,
6696 pa_def_subspaces[i].quadrant,
6697 segment);
6698 i++;
6699 }
6700}
6701
6702
6703
6704/* Create a new space NAME, with the appropriate flags as defined
6705 by the given parameters. */
6706
6707static sd_chain_struct *
6708create_new_space (name, spnum, loadable, defined, private,
6709 sort, seg, user_defined)
6710 char *name;
6711 int spnum;
6712 int loadable;
6713 int defined;
6714 int private;
6715 int sort;
6716 asection *seg;
6717 int user_defined;
6718{
6719 sd_chain_struct *chain_entry;
6720
6721 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
6722 if (!chain_entry)
6723 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
6724 name);
6725
6726 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
6727 strcpy (SPACE_NAME (chain_entry), name);
6728 SPACE_DEFINED (chain_entry) = defined;
6729 SPACE_USER_DEFINED (chain_entry) = user_defined;
6730 SPACE_SPNUM (chain_entry) = spnum;
6731
6732 chain_entry->sd_seg = seg;
6733 chain_entry->sd_last_subseg = -1;
6734 chain_entry->sd_subspaces = NULL;
6735 chain_entry->sd_next = NULL;
6736
6737 /* Find spot for the new space based on its sort key. */
6738 if (!space_dict_last)
6739 space_dict_last = chain_entry;
6740
6741 if (space_dict_root == NULL)
6742 space_dict_root = chain_entry;
6743 else
6744 {
6745 sd_chain_struct *chain_pointer;
6746 sd_chain_struct *prev_chain_pointer;
6747
6748 chain_pointer = space_dict_root;
6749 prev_chain_pointer = NULL;
6750
6751 while (chain_pointer)
6752 {
6753 prev_chain_pointer = chain_pointer;
6754 chain_pointer = chain_pointer->sd_next;
6755 }
6756
6757 /* At this point we've found the correct place to add the new
6758 entry. So add it and update the linked lists as appropriate. */
6759 if (prev_chain_pointer)
6760 {
6761 chain_entry->sd_next = chain_pointer;
6762 prev_chain_pointer->sd_next = chain_entry;
6763 }
6764 else
6765 {
6766 space_dict_root = chain_entry;
6767 chain_entry->sd_next = chain_pointer;
6768 }
6769
6770 if (chain_entry->sd_next == NULL)
6771 space_dict_last = chain_entry;
6772 }
6773
6774 /* This is here to catch predefined spaces which do not get
6775 modified by the user's input. Another call is found at
6776 the bottom of pa_parse_space_stmt to handle cases where
6777 the user modifies a predefined space. */
6778#ifdef obj_set_section_attributes
6779 obj_set_section_attributes (seg, defined, private, sort, spnum);
6780#endif
6781
6782 return chain_entry;
6783}
6784
6785/* Create a new subspace NAME, with the appropriate flags as defined
6786 by the given parameters.
6787
6788 Add the new subspace to the subspace dictionary chain in numerical
6789 order as defined by the SORT entries. */
6790
6791static ssd_chain_struct *
6792create_new_subspace (space, name, loadable, code_only, common,
6793 dup_common, is_zero, sort, access, space_index,
6794 alignment, quadrant, seg)
6795 sd_chain_struct *space;
6796 char *name;
6797 int loadable, code_only, common, dup_common, is_zero;
6798 int sort;
6799 int access;
6800 int space_index;
6801 int alignment;
6802 int quadrant;
6803 asection *seg;
6804{
6805 ssd_chain_struct *chain_entry;
6806
6807 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
6808 if (!chain_entry)
6809 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name);
6810
6811 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
6812 strcpy (SUBSPACE_NAME (chain_entry), name);
6813
6814 /* Initialize subspace_defined. When we hit a .subspace directive
6815 we'll set it to 1 which "locks-in" the subspace attributes. */
6816 SUBSPACE_DEFINED (chain_entry) = 0;
6817
49863f82 6818 chain_entry->ssd_subseg = 0;
252b5132
RH		 6819 chain_entry->ssd_seg = seg;
6820 chain_entry->ssd_next = NULL;
6821
6822 /* Find spot for the new subspace based on its sort key. */
6823 if (space->sd_subspaces == NULL)
6824 space->sd_subspaces = chain_entry;
6825 else
6826 {
6827 ssd_chain_struct *chain_pointer;
6828 ssd_chain_struct *prev_chain_pointer;
6829
6830 chain_pointer = space->sd_subspaces;
6831 prev_chain_pointer = NULL;
6832
6833 while (chain_pointer)
6834 {
6835 prev_chain_pointer = chain_pointer;
6836 chain_pointer = chain_pointer->ssd_next;
6837 }
6838
6839 /* Now we have somewhere to put the new entry. Insert it and update
6840 the links. */
6841 if (prev_chain_pointer)
6842 {
6843 chain_entry->ssd_next = chain_pointer;
6844 prev_chain_pointer->ssd_next = chain_entry;
6845 }
6846 else
6847 {
6848 space->sd_subspaces = chain_entry;
6849 chain_entry->ssd_next = chain_pointer;
6850 }
6851 }
6852
6853#ifdef obj_set_subsection_attributes
6854 obj_set_subsection_attributes (seg, space->sd_seg, access,
6855 sort, quadrant);
6856#endif
6857
6858 return chain_entry;
6859}
6860
6861/* Update the information for the given subspace based upon the
6862 various arguments. Return the modified subspace chain entry. */
6863
6864static ssd_chain_struct *
6865update_subspace (space, name, loadable, code_only, common, dup_common, sort,
6866 zero, access, space_index, alignment, quadrant, section)
6867 sd_chain_struct *space;
6868 char *name;
6869 int loadable;
6870 int code_only;
6871 int common;
6872 int dup_common;
6873 int zero;
6874 int sort;
6875 int access;
6876 int space_index;
6877 int alignment;
6878 int quadrant;
6879 asection *section;
6880{
6881 ssd_chain_struct *chain_entry;
6882
6883 chain_entry = is_defined_subspace (name);
6884
6885#ifdef obj_set_subsection_attributes
6886 obj_set_subsection_attributes (section, space->sd_seg, access,
6887 sort, quadrant);
6888#endif
6889
6890 return chain_entry;
6891}
6892
6893/* Return the space chain entry for the space with the name NAME or
6894 NULL if no such space exists. */
6895
6896static sd_chain_struct *
6897is_defined_space (name)
6898 char *name;
6899{
6900 sd_chain_struct *chain_pointer;
6901
6902 for (chain_pointer = space_dict_root;
6903 chain_pointer;
6904 chain_pointer = chain_pointer->sd_next)
6905 {
6906 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
6907 return chain_pointer;
6908 }
6909
6910 /* No mapping from segment to space was found. Return NULL. */
6911 return NULL;
6912}
6913
6914/* Find and return the space associated with the given seg. If no mapping
6915 from the given seg to a space is found, then return NULL.
6916
6917 Unlike subspaces, the number of spaces is not expected to grow much,
6918 so a linear exhaustive search is OK here. */
6919
6920static sd_chain_struct *
6921pa_segment_to_space (seg)
6922 asection *seg;
6923{
6924 sd_chain_struct *space_chain;
6925
6926 /* Walk through each space looking for the correct mapping. */
6927 for (space_chain = space_dict_root;
6928 space_chain;
6929 space_chain = space_chain->sd_next)
6930 {
6931 if (space_chain->sd_seg == seg)
6932 return space_chain;
6933 }
6934
6935 /* Mapping was not found. Return NULL. */
6936 return NULL;
6937}
6938
6939/* Return the space chain entry for the subspace with the name NAME or
6940 NULL if no such subspace exists.
6941
6942 Uses a linear search through all the spaces and subspaces, this may
6943 not be appropriate if we ever being placing each function in its
6944 own subspace. */
6945
6946static ssd_chain_struct *
6947is_defined_subspace (name)
6948 char *name;
6949{
6950 sd_chain_struct *space_chain;
6951 ssd_chain_struct *subspace_chain;
6952
6953 /* Walk through each space. */
6954 for (space_chain = space_dict_root;
6955 space_chain;
6956 space_chain = space_chain->sd_next)
6957 {
6958 /* Walk through each subspace looking for a name which matches. */
6959 for (subspace_chain = space_chain->sd_subspaces;
6960 subspace_chain;
6961 subspace_chain = subspace_chain->ssd_next)
6962 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
6963 return subspace_chain;
6964 }
6965
6966 /* Subspace wasn't found. Return NULL. */
6967 return NULL;
6968}
6969
6970/* Find and return the subspace associated with the given seg. If no
6971 mapping from the given seg to a subspace is found, then return NULL.
6972
6973 If we ever put each procedure/function within its own subspace
6974 (to make life easier on the compiler and linker), then this will have
6975 to become more efficient. */
6976
6977static ssd_chain_struct *
6978pa_subsegment_to_subspace (seg, subseg)
6979 asection *seg;
6980 subsegT subseg;
6981{
6982 sd_chain_struct *space_chain;
6983 ssd_chain_struct *subspace_chain;
6984
6985 /* Walk through each space. */
6986 for (space_chain = space_dict_root;
6987 space_chain;
6988 space_chain = space_chain->sd_next)
6989 {
6990 if (space_chain->sd_seg == seg)
6991 {
6992 /* Walk through each subspace within each space looking for
6993 the correct mapping. */
6994 for (subspace_chain = space_chain->sd_subspaces;
6995 subspace_chain;
6996 subspace_chain = subspace_chain->ssd_next)
6997 if (subspace_chain->ssd_subseg == (int) subseg)
6998 return subspace_chain;
6999 }
7000 }
7001
7002 /* No mapping from subsegment to subspace found. Return NULL. */
7003 return NULL;
7004}
7005
7006/* Given a number, try and find a space with the name number.
7007
7008 Return a pointer to a space dictionary chain entry for the space
7009 that was found or NULL on failure. */
7010
7011static sd_chain_struct *
7012pa_find_space_by_number (number)
7013 int number;
7014{
7015 sd_chain_struct *space_chain;
7016
7017 for (space_chain = space_dict_root;
7018 space_chain;
7019 space_chain = space_chain->sd_next)
7020 {
7021 if (SPACE_SPNUM (space_chain) == (unsigned int) number)
7022 return space_chain;
7023 }
7024
7025 /* No appropriate space found. Return NULL. */
7026 return NULL;
7027}
7028
7029/* Return the starting address for the given subspace. If the starting
7030 address is unknown then return zero. */
7031
7032static unsigned int
7033pa_subspace_start (space, quadrant)
7034 sd_chain_struct *space;
7035 int quadrant;
7036{
252b5132
RH		 7037 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
7038 is not correct for the PA OSF1 port. */
7039 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
7040 return 0x40000000;
7041 else if (space->sd_seg == data_section && quadrant == 1)
7042 return 0x40000000;
7043 else
7044 return 0;
252b5132
RH		 7045 return 0;
7046}
7047
7048/* FIXME. Needs documentation. */
7049static int
7050pa_next_subseg (space)
7051 sd_chain_struct *space;
7052{
7053
7054 space->sd_last_subseg++;
7055 return space->sd_last_subseg;
7056}
49863f82 7057#endif
252b5132
RH		 7058
7059/* Helper function for pa_stringer. Used to find the end of
7060 a string. */
7061
7062static unsigned int
7063pa_stringer_aux (s)
7064 char *s;
7065{
7066 unsigned int c = *s & CHAR_MASK;
7067
49863f82 7068#ifdef OBJ_SOM
252b5132
RH		 7069 /* We must have a valid space and subspace. */
7070 pa_check_current_space_and_subspace ();
49863f82 7071#endif
252b5132
RH		 7072
7073 switch (c)
7074 {
7075 case '\"':
7076 c = NOT_A_CHAR;
7077 break;
7078 default:
7079 break;
7080 }
7081 return c;
7082}
7083
7084/* Handle a .STRING type pseudo-op. */
7085
7086static void
7087pa_stringer (append_zero)
7088 int append_zero;
7089{
7090 char *s, num_buf[4];
7091 unsigned int c;
7092 int i;
7093
7094 /* Preprocess the string to handle PA-specific escape sequences.
7095 For example, \xDD where DD is a hexidecimal number should be
7096 changed to \OOO where OOO is an octal number. */
7097
7098 /* Skip the opening quote. */
7099 s = input_line_pointer + 1;
7100
7101 while (is_a_char (c = pa_stringer_aux (s++)))
7102 {
7103 if (c == '\\')
7104 {
7105 c = *s;
7106 switch (c)
7107 {
7108 /* Handle \x<num>. */
7109 case 'x':
7110 {
7111 unsigned int number;
7112 int num_digit;
7113 char dg;
7114 char *s_start = s;
7115
7116 /* Get pas the 'x'. */
7117 s++;
7118 for (num_digit = 0, number = 0, dg = *s;
7119 num_digit < 2
7120 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
7121 || (dg >= 'A' && dg <= 'F'));
7122 num_digit++)
7123 {
7124 if (isdigit (dg))
7125 number = number * 16 + dg - '0';
7126 else if (dg >= 'a' && dg <= 'f')
7127 number = number * 16 + dg - 'a' + 10;
7128 else
7129 number = number * 16 + dg - 'A' + 10;
7130
7131 s++;
7132 dg = *s;
7133 }
7134 if (num_digit > 0)
7135 {
7136 switch (num_digit)
7137 {
7138 case 1:
7139 sprintf (num_buf, "%02o", number);
7140 break;
7141 case 2:
7142 sprintf (num_buf, "%03o", number);
7143 break;
7144 }
7145 for (i = 0; i <= num_digit; i++)
7146 s_start[i] = num_buf[i];
7147 }
7148 break;
7149 }
7150 /* This might be a "\"", skip over the escaped char. */
7151 default:
7152 s++;
7153 break;
7154 }
7155 }
7156 }
7157 stringer (append_zero);
7158 pa_undefine_label ();
7159}
7160
7161/* Handle a .VERSION pseudo-op. */
7162
7163static void
7164pa_version (unused)
7165 int unused;
7166{
7167 obj_version (0);
7168 pa_undefine_label ();
7169}
7170
7171#ifdef OBJ_SOM
7172
7173/* Handle a .COMPILER pseudo-op. */
7174
7175static void
7176pa_compiler (unused)
7177 int unused;
7178{
7179 obj_som_compiler (0);
7180 pa_undefine_label ();
7181}
7182
7183#endif
7184
7185/* Handle a .COPYRIGHT pseudo-op. */
7186
7187static void
7188pa_copyright (unused)
7189 int unused;
7190{
7191 obj_copyright (0);
7192 pa_undefine_label ();
7193}
7194
7195/* Just like a normal cons, but when finished we have to undefine
7196 the latest space label. */
7197
7198static void
7199pa_cons (nbytes)
7200 int nbytes;
7201{
7202 cons (nbytes);
7203 pa_undefine_label ();
7204}
7205
7206/* Switch to the data space. As usual delete our label. */
7207
7208static void
7209pa_data (unused)
7210 int unused;
7211{
49863f82 7212#ifdef OBJ_SOM
252b5132
RH		 7213 current_space = is_defined_space ("$PRIVATE$");
7214 current_subspace
7215 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 7216#endif
252b5132
RH		 7217 s_data (0);
7218 pa_undefine_label ();
7219}
7220
7221/* Like float_cons, but we need to undefine our label. */
7222
7223static void
7224pa_float_cons (float_type)
7225 int float_type;
7226{
7227 float_cons (float_type);
7228 pa_undefine_label ();
7229}
7230
7231/* Like s_fill, but delete our label when finished. */
7232
7233static void
7234pa_fill (unused)
7235 int unused;
7236{
49863f82 7237#ifdef OBJ_SOM
252b5132
RH		 7238 /* We must have a valid space and subspace. */
7239 pa_check_current_space_and_subspace ();
49863f82 7240#endif
252b5132
RH		 7241
7242 s_fill (0);
7243 pa_undefine_label ();
7244}
7245
7246/* Like lcomm, but delete our label when finished. */
7247
7248static void
7249pa_lcomm (needs_align)
7250 int needs_align;
7251{
49863f82 7252#ifdef OBJ_SOM
252b5132
RH		 7253 /* We must have a valid space and subspace. */
7254 pa_check_current_space_and_subspace ();
49863f82 7255#endif
252b5132
RH		 7256
7257 s_lcomm (needs_align);
7258 pa_undefine_label ();
7259}
7260
7261/* Like lsym, but delete our label when finished. */
7262
7263static void
7264pa_lsym (unused)
7265 int unused;
7266{
49863f82 7267#ifdef OBJ_SOM
252b5132
RH		 7268 /* We must have a valid space and subspace. */
7269 pa_check_current_space_and_subspace ();
49863f82 7270#endif
252b5132
RH		 7271
7272 s_lsym (0);
7273 pa_undefine_label ();
7274}
7275
7276/* Switch to the text space. Like s_text, but delete our
7277 label when finished. */
7278static void
7279pa_text (unused)
7280 int unused;
7281{
49863f82 7282#ifdef OBJ_SOM
252b5132
RH		 7283 current_space = is_defined_space ("$TEXT$");
7284 current_subspace
7285 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 7286#endif
252b5132
RH		 7287
7288 s_text (0);
7289 pa_undefine_label ();
7290}
7291
7292/* On the PA relocations which involve function symbols must not be
7293 adjusted. This so that the linker can know when/how to create argument
7294 relocation stubs for indirect calls and calls to static functions.
7295
7296 "T" field selectors create DLT relative fixups for accessing
7297 globals and statics in PIC code; each DLT relative fixup creates
7298 an entry in the DLT table. The entries contain the address of
7299 the final target (eg accessing "foo" would create a DLT entry
7300 with the address of "foo").
7301
7302 Unfortunately, the HP linker doesn't take into account any addend
7303 when generating the DLT; so accessing $LIT$+8 puts the address of
7304 $LIT$ into the DLT rather than the address of $LIT$+8.
7305
7306 The end result is we can't perform relocation symbol reductions for
7307 any fixup which creates entries in the DLT (eg they use "T" field
7308 selectors).
7309
7310 Reject reductions involving symbols with external scope; such
7311 reductions make life a living hell for object file editors.
7312
7313 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7314 the code space. The SOM BFD backend doesn't know how to pull the
7315 right bits out of an instruction. */
7316
7317int
7318hppa_fix_adjustable (fixp)
7319 fixS *fixp;
7320{
7321 struct hppa_fix_struct *hppa_fix;
7322
7323 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
7324
7325#ifdef OBJ_SOM
7326 /* Reject reductions of symbols in 32bit relocs. */
7327 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
7328 return 0;
7329
7330 /* Reject reductions of symbols in sym1-sym2 expressions when
7331 the fixup will occur in a CODE subspace.
7332
7333 XXX FIXME: Long term we probably want to reject all of these;
7334 for example reducing in the debug section would lose if we ever
7335 supported using the optimizing hp linker. */
7336 if (fixp->fx_addsy
7337 && fixp->fx_subsy
7338 && (hppa_fix->segment->flags & SEC_CODE))
7339 {
7340 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
398e8c25 7341 symbol_mark_used_in_reloc (fixp->fx_subsy);
252b5132
RH		 7342 return 0;
7343 }
7344
7345 /* We can't adjust any relocs that use LR% and RR% field selectors.
7346 That confuses the HP linker. */
7347 if (hppa_fix->fx_r_field == e_lrsel
7348 || hppa_fix->fx_r_field == e_rrsel
7349 || hppa_fix->fx_r_field == e_nlrsel)
7350 return 0;
7351#endif
7352
7353 /* Reject reductions of symbols in DLT relative relocs,
7354 relocations with plabels. */
7355 if (hppa_fix->fx_r_field == e_tsel
7356 || hppa_fix->fx_r_field == e_ltsel
7357 || hppa_fix->fx_r_field == e_rtsel
7358 || hppa_fix->fx_r_field == e_psel
7359 || hppa_fix->fx_r_field == e_rpsel
7360 || hppa_fix->fx_r_field == e_lpsel)
7361 return 0;
7362
a0f75b47 7363 if (fixp->fx_addsy && S_IS_EXTERNAL (fixp->fx_addsy))
252b5132
RH		 7364 return 0;
7365
7366 /* Reject absolute calls (jumps). */
7367 if (hppa_fix->fx_r_type == R_HPPA_ABS_CALL)
7368 return 0;
7369
7370 /* Reject reductions of function symbols. */
a0f75b47 7371 if (fixp->fx_addsy == 0 || ! S_IS_FUNCTION (fixp->fx_addsy))
252b5132
RH		 7372 return 1;
7373
7374 return 0;
7375}
7376
7377/* Return nonzero if the fixup in FIXP will require a relocation,
7378 even it if appears that the fixup could be completely handled
7379 within GAS. */
7380
7381int
7382hppa_force_relocation (fixp)
7383 fixS *fixp;
7384{
7385 struct hppa_fix_struct *hppa_fixp;
7386 int distance;
7387
7388 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
7389#ifdef OBJ_SOM
7390 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT
7391 || fixp->fx_r_type == R_HPPA_BEGIN_BRTAB
7392 || fixp->fx_r_type == R_HPPA_END_BRTAB
7393 || fixp->fx_r_type == R_HPPA_BEGIN_TRY
7394 || fixp->fx_r_type == R_HPPA_END_TRY
7395 || (fixp->fx_addsy != NULL && fixp->fx_subsy != NULL
7396 && (hppa_fixp->segment->flags & SEC_CODE) != 0))
7397 return 1;
7398#endif
7399
7400#define arg_reloc_stub_needed(CALLER, CALLEE) \
7401 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7402
49863f82 7403#ifdef OBJ_SOM
252b5132
RH		 7404 /* It is necessary to force PC-relative calls/jumps to have a relocation
7405 entry if they're going to need either a argument relocation or long
7406 call stub. FIXME. Can't we need the same for absolute calls? */
7407 if (fixp->fx_pcrel && fixp->fx_addsy
7408 && (arg_reloc_stub_needed ((long) ((obj_symbol_type *)
a0f75b47
ILT		 7409 symbol_get_bfdsym (fixp->fx_addsy))->tc_data.ap.hppa_arg_reloc,
7410 hppa_fixp->fx_arg_reloc)))
252b5132 7411 return 1;
49863f82 7412#endif
252b5132
RH		 7413 distance = (fixp->fx_offset + S_GET_VALUE (fixp->fx_addsy)
7414 - md_pcrel_from (fixp));
7415 /* Now check and see if we're going to need a long-branch stub. */
7416 if (fixp->fx_r_type == R_HPPA_PCREL_CALL
7417 && (distance > 262143 || distance < -262144))
7418 return 1;
7419
7420 if (fixp->fx_r_type == R_HPPA_ABS_CALL)
7421 return 1;
7422#undef arg_reloc_stub_needed
7423
7424 /* No need (yet) to force another relocations to be emitted. */
7425 return 0;
7426}
7427
7428/* Now for some ELF specific code. FIXME. */
7429#ifdef OBJ_ELF
7430/* Mark the end of a function so that it's possible to compute
7431 the size of the function in hppa_elf_final_processing. */
7432
7433static void
7434hppa_elf_mark_end_of_function ()
7435{
7436 /* ELF does not have EXIT relocations. All we do is create a
7437 temporary symbol marking the end of the function. */
7438 char *name = (char *)
7439 xmalloc (strlen ("L$\001end_") +
7440 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
7441
7442 if (name)
7443 {
7444 symbolS *symbolP;
7445
7446 strcpy (name, "L$\001end_");
7447 strcat (name, S_GET_NAME (last_call_info->start_symbol));
7448
7449 /* If we have a .exit followed by a .procend, then the
7450 symbol will have already been defined. */
7451 symbolP = symbol_find (name);
7452 if (symbolP)
7453 {
7454 /* The symbol has already been defined! This can
7455 happen if we have a .exit followed by a .procend.
7456
7457 This is *not* an error. All we want to do is free
7458 the memory we just allocated for the name and continue. */
7459 xfree (name);
7460 }
7461 else
7462 {
7463 /* symbol value should be the offset of the
7464 last instruction of the function */
7465 symbolP = symbol_new (name, now_seg, (valueT) (frag_now_fix () - 4),
7466 frag_now);
7467
7468 assert (symbolP);
a0f75b47 7469 S_CLEAR_EXTERNAL (symbolP);
252b5132
RH		 7470 symbol_table_insert (symbolP);
7471 }
7472
7473 if (symbolP)
7474 last_call_info->end_symbol = symbolP;
7475 else
7476 as_bad (_("Symbol '%s' could not be created."), name);
7477
7478 }
7479 else
7480 as_bad (_("No memory for symbol name."));
7481
7482}
7483
7484/* For ELF, this function serves one purpose: to setup the st_size
7485 field of STT_FUNC symbols. To do this, we need to scan the
7486 call_info structure list, determining st_size in by taking the
7487 difference in the address of the beginning/end marker symbols. */
7488
7489void
7490elf_hppa_final_processing ()
7491{
7492 struct call_info *call_info_pointer;
7493
7494 for (call_info_pointer = call_info_root;
7495 call_info_pointer;
7496 call_info_pointer = call_info_pointer->ci_next)
7497 {
7498 elf_symbol_type *esym
a0f75b47
ILT		 7499 = ((elf_symbol_type *)
7500 symbol_get_bfdsym (call_info_pointer->start_symbol));
252b5132
RH		 7501 esym->internal_elf_sym.st_size =
7502 S_GET_VALUE (call_info_pointer->end_symbol)
7503 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
7504 }
7505}
7506#endif
GDB Binutils - Deliverables
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