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* hppa.h (pa_opcodes): Add initializers to silence compiler.
[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
2d93dcc4
JL		 42/* If we are using ELF, then we probably can support dwarf2 debug
43 records. Furthermore, if we are supporting dwarf2 debug records,
44 then we want to use the assembler support for compact line numbers. */
45#ifdef OBJ_ELF
46#include "dwarf2dbg.h"
47struct dwarf2_line_info debug_line;
48#endif
49
252b5132
RH		 50/* A "convient" place to put object file dependencies which do
51 not need to be seen outside of tc-hppa.c. */
52#ifdef OBJ_ELF
252b5132 53/* Object file formats specify relocation types. */
b388df87 54typedef elf_hppa_reloc_type reloc_type;
252b5132
RH		 55
56/* Object file formats specify BFD symbol types. */
57typedef elf_symbol_type obj_symbol_type;
58
b388df87 59#ifdef BFD64
252b5132 60/* How to generate a relocation. */
b388df87
JL		 61#define hppa_gen_reloc_type _bfd_elf64_hppa_gen_reloc_type
62#else
63#define hppa_gen_reloc_type _bfd_elf32_hppa_gen_reloc_type
64#endif
252b5132
RH		 65
66/* ELF objects can have versions, but apparently do not have anywhere
67 to store a copyright string. */
68#define obj_version obj_elf_version
69#define obj_copyright obj_elf_version
46031ca9
JL		 70
71#define UNWIND_SECTION_NAME ".PARISC.unwind"
252b5132
RH		 72#endif
73
74#ifdef OBJ_SOM
75/* Names of various debugging spaces/subspaces. */
76#define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
77#define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
78#define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
79#define UNWIND_SECTION_NAME "$UNWIND$"
80
81/* Object file formats specify relocation types. */
82typedef int reloc_type;
83
84/* SOM objects can have both a version string and a copyright string. */
85#define obj_version obj_som_version
86#define obj_copyright obj_som_copyright
87
252b5132
RH		 88/* How to generate a relocation. */
89#define hppa_gen_reloc_type hppa_som_gen_reloc_type
90
91/* Object file formats specify BFD symbol types. */
92typedef som_symbol_type obj_symbol_type;
93
94/* This apparently isn't in older versions of hpux reloc.h. */
95#ifndef R_DLT_REL
96#define R_DLT_REL 0x78
97#endif
98#endif
99
100#ifndef R_N0SEL
101#define R_N0SEL 0xd8
102#endif
103
104#ifndef R_N1SEL
105#define R_N1SEL 0xd9
106#endif
107
108/* Various structures and types used internally in tc-hppa.c. */
109
110/* Unwind table and descriptor. FIXME: Sync this with GDB version. */
111
112struct unwind_desc
113 {
114 unsigned int cannot_unwind:1;
115 unsigned int millicode:1;
116 unsigned int millicode_save_rest:1;
117 unsigned int region_desc:2;
118 unsigned int save_sr:2;
119 unsigned int entry_fr:4;
120 unsigned int entry_gr:5;
121 unsigned int args_stored:1;
122 unsigned int call_fr:5;
123 unsigned int call_gr:5;
124 unsigned int save_sp:1;
125 unsigned int save_rp:1;
126 unsigned int save_rp_in_frame:1;
127 unsigned int extn_ptr_defined:1;
128 unsigned int cleanup_defined:1;
129
130 unsigned int hpe_interrupt_marker:1;
131 unsigned int hpux_interrupt_marker:1;
132 unsigned int reserved:3;
133 unsigned int frame_size:27;
134 };
135
136struct unwind_table
137 {
138 /* Starting and ending offsets of the region described by
139 descriptor. */
140 unsigned int start_offset;
141 unsigned int end_offset;
142 struct unwind_desc descriptor;
143 };
144
145/* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
146 control the entry and exit code they generate. It is also used in
147 creation of the correct stack unwind descriptors.
148
149 NOTE: GAS does not support .enter and .leave for the generation of
150 prologues and epilogues. FIXME.
151
152 The fields in structure roughly correspond to the arguments available on the
153 .callinfo pseudo-op. */
154
155struct call_info
156 {
157 /* The unwind descriptor being built. */
158 struct unwind_table ci_unwind;
159
160 /* Name of this function. */
161 symbolS *start_symbol;
162
163 /* (temporary) symbol used to mark the end of this function. */
164 symbolS *end_symbol;
165
166 /* Next entry in the chain. */
167 struct call_info *ci_next;
168 };
169
170/* Operand formats for FP instructions. Note not all FP instructions
171 allow all four formats to be used (for example fmpysub only allows
172 SGL and DBL). */
173typedef enum
174 {
175 SGL, DBL, ILLEGAL_FMT, QUAD, W, UW, DW, UDW, QW, UQW
176 }
177fp_operand_format;
178
179/* This fully describes the symbol types which may be attached to
180 an EXPORT or IMPORT directive. Only SOM uses this formation
181 (ELF has no need for it). */
182typedef enum
183 {
184 SYMBOL_TYPE_UNKNOWN,
185 SYMBOL_TYPE_ABSOLUTE,
186 SYMBOL_TYPE_CODE,
187 SYMBOL_TYPE_DATA,
188 SYMBOL_TYPE_ENTRY,
189 SYMBOL_TYPE_MILLICODE,
190 SYMBOL_TYPE_PLABEL,
191 SYMBOL_TYPE_PRI_PROG,
192 SYMBOL_TYPE_SEC_PROG,
193 }
194pa_symbol_type;
195
196/* This structure contains information needed to assemble
197 individual instructions. */
198struct pa_it
199 {
200 /* Holds the opcode after parsing by pa_ip. */
201 unsigned long opcode;
202
203 /* Holds an expression associated with the current instruction. */
204 expressionS exp;
205
206 /* Does this instruction use PC-relative addressing. */
207 int pcrel;
208
209 /* Floating point formats for operand1 and operand2. */
210 fp_operand_format fpof1;
211 fp_operand_format fpof2;
212
1cf6ae67
JL		 213 /* Whether or not we saw a truncation request on an fcnv insn. */
214 int trunc;
252b5132
RH		 215
216 /* Holds the field selector for this instruction
217 (for example L%, LR%, etc). */
218 long field_selector;
219
220 /* Holds any argument relocation bits associated with this
221 instruction. (instruction should be some sort of call). */
222 long arg_reloc;
223
224 /* The format specification for this instruction. */
225 int format;
226
227 /* The relocation (if any) associated with this instruction. */
228 reloc_type reloc;
229 };
230
231/* PA-89 floating point registers are arranged like this:
232
233
234 +--------------+--------------+
235 | 0 or 16L | 16 or 16R |
236 +--------------+--------------+
237 | 1 or 17L | 17 or 17R |
238 +--------------+--------------+
239 | | |
240
241 . . .
242 . . .
243 . . .
244
245 | | |
246 +--------------+--------------+
247 | 14 or 30L | 30 or 30R |
248 +--------------+--------------+
249 | 15 or 31L | 31 or 31R |
250 +--------------+--------------+
251
252
253 The following is a version of pa_parse_number that
254 handles the L/R notation and returns the correct
255 value to put into the instruction register field.
256 The correct value to put into the instruction is
257 encoded in the structure 'pa_11_fp_reg_struct'. */
258
259struct pa_11_fp_reg_struct
260 {
261 /* The register number. */
262 char number_part;
263
264 /* L/R selector. */
265 char l_r_select;
266 };
267
268/* Additional information needed to build argument relocation stubs. */
269struct call_desc
270 {
271 /* The argument relocation specification. */
272 unsigned int arg_reloc;
273
274 /* Number of arguments. */
275 unsigned int arg_count;
276 };
277
49863f82 278#ifdef OBJ_SOM
252b5132
RH		 279/* This structure defines an entry in the subspace dictionary
280 chain. */
281
282struct subspace_dictionary_chain
283 {
284 /* Nonzero if this space has been defined by the user code. */
285 unsigned int ssd_defined;
286
287 /* Name of this subspace. */
288 char *ssd_name;
289
290 /* GAS segment and subsegment associated with this subspace. */
291 asection *ssd_seg;
292 int ssd_subseg;
293
294 /* Next space in the subspace dictionary chain. */
295 struct subspace_dictionary_chain *ssd_next;
296 };
297
298typedef struct subspace_dictionary_chain ssd_chain_struct;
299
300/* This structure defines an entry in the subspace dictionary
301 chain. */
302
303struct space_dictionary_chain
304 {
305 /* Nonzero if this space has been defined by the user code or
306 as a default space. */
307 unsigned int sd_defined;
308
309 /* Nonzero if this spaces has been defined by the user code. */
310 unsigned int sd_user_defined;
311
312 /* The space number (or index). */
313 unsigned int sd_spnum;
314
315 /* The name of this subspace. */
316 char *sd_name;
317
318 /* GAS segment to which this subspace corresponds. */
319 asection *sd_seg;
320
321 /* Current subsegment number being used. */
322 int sd_last_subseg;
323
324 /* The chain of subspaces contained within this space. */
325 ssd_chain_struct *sd_subspaces;
326
327 /* The next entry in the space dictionary chain. */
328 struct space_dictionary_chain *sd_next;
329 };
330
331typedef struct space_dictionary_chain sd_chain_struct;
332
252b5132
RH		 333/* This structure defines attributes of the default subspace
334 dictionary entries. */
335
336struct default_subspace_dict
337 {
338 /* Name of the subspace. */
339 char *name;
340
341 /* FIXME. Is this still needed? */
342 char defined;
343
344 /* Nonzero if this subspace is loadable. */
345 char loadable;
346
347 /* Nonzero if this subspace contains only code. */
348 char code_only;
349
350 /* Nonzero if this is a common subspace. */
351 char common;
352
353 /* Nonzero if this is a common subspace which allows symbols
354 to be multiply defined. */
355 char dup_common;
356
357 /* Nonzero if this subspace should be zero filled. */
358 char zero;
359
360 /* Sort key for this subspace. */
361 unsigned char sort;
362
363 /* Access control bits for this subspace. Can represent RWX access
364 as well as privilege level changes for gateways. */
365 int access;
366
367 /* Index of containing space. */
368 int space_index;
369
370 /* Alignment (in bytes) of this subspace. */
371 int alignment;
372
373 /* Quadrant within space where this subspace should be loaded. */
374 int quadrant;
375
376 /* An index into the default spaces array. */
377 int def_space_index;
378
252b5132
RH		 379 /* Subsegment associated with this subspace. */
380 subsegT subsegment;
381 };
382
383/* This structure defines attributes of the default space
384 dictionary entries. */
385
386struct default_space_dict
387 {
388 /* Name of the space. */
389 char *name;
390
391 /* Space number. It is possible to identify spaces within
392 assembly code numerically! */
393 int spnum;
394
395 /* Nonzero if this space is loadable. */
396 char loadable;
397
398 /* Nonzero if this space is "defined". FIXME is still needed */
399 char defined;
400
401 /* Nonzero if this space can not be shared. */
402 char private;
403
404 /* Sort key for this space. */
405 unsigned char sort;
406
407 /* Segment associated with this space. */
408 asection *segment;
252b5132 409 };
49863f82
JL		 410#endif
411
412/* Structure for previous label tracking. Needed so that alignments,
413 callinfo declarations, etc can be easily attached to a particular
414 label. */
415typedef struct label_symbol_struct
416 {
417 struct symbol *lss_label;
418#ifdef OBJ_SOM
419 sd_chain_struct *lss_space;
420#endif
421#ifdef OBJ_ELF
422 segT lss_segment;
423#endif
424 struct label_symbol_struct *lss_next;
425 }
426label_symbol_struct;
252b5132
RH		 427
428/* Extra information needed to perform fixups (relocations) on the PA. */
429struct hppa_fix_struct
430 {
431 /* The field selector. */
432 enum hppa_reloc_field_selector_type_alt fx_r_field;
433
434 /* Type of fixup. */
435 int fx_r_type;
436
437 /* Format of fixup. */
438 int fx_r_format;
439
440 /* Argument relocation bits. */
441 long fx_arg_reloc;
442
443 /* The segment this fixup appears in. */
444 segT segment;
445 };
446
447/* Structure to hold information about predefined registers. */
448
449struct pd_reg
450 {
451 char *name;
452 int value;
453 };
454
455/* This structure defines the mapping from a FP condition string
456 to a condition number which can be recorded in an instruction. */
457struct fp_cond_map
458 {
459 char *string;
460 int cond;
461 };
462
463/* This structure defines a mapping from a field selector
464 string to a field selector type. */
465struct selector_entry
466 {
467 char *prefix;
468 int field_selector;
469 };
470
471/* Prototypes for functions local to tc-hppa.c. */
472
49863f82 473#ifdef OBJ_SOM
252b5132 474static void pa_check_current_space_and_subspace PARAMS ((void));
49863f82
JL		 475#endif
476
252b5132
RH		 477static fp_operand_format pa_parse_fp_format PARAMS ((char **s));
478static void pa_cons PARAMS ((int));
479static void pa_data PARAMS ((int));
480static void pa_float_cons PARAMS ((int));
481static void pa_fill PARAMS ((int));
482static void pa_lcomm PARAMS ((int));
483static void pa_lsym PARAMS ((int));
484static void pa_stringer PARAMS ((int));
485static void pa_text PARAMS ((int));
486static void pa_version PARAMS ((int));
487static int pa_parse_fp_cmp_cond PARAMS ((char **));
488static int get_expression PARAMS ((char *));
489static int pa_get_absolute_expression PARAMS ((struct pa_it *, char **));
490static int evaluate_absolute PARAMS ((struct pa_it *));
491static unsigned int pa_build_arg_reloc PARAMS ((char *));
492static unsigned int pa_align_arg_reloc PARAMS ((unsigned int, unsigned int));
493static int pa_parse_nullif PARAMS ((char **));
494static int pa_parse_nonneg_cmpsub_cmpltr PARAMS ((char **, int));
495static int pa_parse_neg_cmpsub_cmpltr PARAMS ((char **, int));
496static int pa_parse_neg_add_cmpltr PARAMS ((char **, int));
497static int pa_parse_nonneg_add_cmpltr PARAMS ((char **, int));
252b5132
RH		 498static void pa_block PARAMS ((int));
499static void pa_brtab PARAMS ((int));
500static void pa_try PARAMS ((int));
501static void pa_call PARAMS ((int));
502static void pa_call_args PARAMS ((struct call_desc *));
503static void pa_callinfo PARAMS ((int));
504static void pa_code PARAMS ((int));
505static void pa_comm PARAMS ((int));
252b5132
RH		 506static void pa_copyright PARAMS ((int));
507static void pa_end PARAMS ((int));
508static void pa_enter PARAMS ((int));
509static void pa_entry PARAMS ((int));
510static void pa_equ PARAMS ((int));
511static void pa_exit PARAMS ((int));
512static void pa_export PARAMS ((int));
513static void pa_type_args PARAMS ((symbolS *, int));
514static void pa_import PARAMS ((int));
515static void pa_label PARAMS ((int));
516static void pa_leave PARAMS ((int));
517static void pa_level PARAMS ((int));
518static void pa_origin PARAMS ((int));
519static void pa_proc PARAMS ((int));
520static void pa_procend PARAMS ((int));
252b5132
RH		 521static void pa_param PARAMS ((int));
522static void pa_undefine_label PARAMS ((void));
523static int need_pa11_opcode PARAMS ((struct pa_it *,
524 struct pa_11_fp_reg_struct *));
525static int pa_parse_number PARAMS ((char **, struct pa_11_fp_reg_struct *));
526static label_symbol_struct *pa_get_label PARAMS ((void));
49863f82
JL		 527#ifdef OBJ_SOM
528static void pa_compiler PARAMS ((int));
529static void pa_align PARAMS ((int));
530static void pa_space PARAMS ((int));
531static void pa_spnum PARAMS ((int));
532static void pa_subspace PARAMS ((int));
252b5132
RH		 533static sd_chain_struct *create_new_space PARAMS ((char *, int, int,
534 int, int, int,
535 asection *, int));
536static ssd_chain_struct *create_new_subspace PARAMS ((sd_chain_struct *,
537 char *, int, int,
538 int, int, int,
539 int, int, int, int,
540 int, asection *));
541static ssd_chain_struct *update_subspace PARAMS ((sd_chain_struct *,
542 char *, int, int, int,
543 int, int, int, int,
544 int, int, int,
545 asection *));
546static sd_chain_struct *is_defined_space PARAMS ((char *));
547static ssd_chain_struct *is_defined_subspace PARAMS ((char *));
548static sd_chain_struct *pa_segment_to_space PARAMS ((asection *));
549static ssd_chain_struct *pa_subsegment_to_subspace PARAMS ((asection *,
550 subsegT));
551static sd_chain_struct *pa_find_space_by_number PARAMS ((int));
552static unsigned int pa_subspace_start PARAMS ((sd_chain_struct *, int));
49863f82
JL		 553static sd_chain_struct *pa_parse_space_stmt PARAMS ((char *, int));
554static int pa_next_subseg PARAMS ((sd_chain_struct *));
555static void pa_spaces_begin PARAMS ((void));
556#endif
252b5132
RH		 557static void pa_ip PARAMS ((char *));
558static void fix_new_hppa PARAMS ((fragS *, int, int, symbolS *,
559 long, expressionS *, int,
560 bfd_reloc_code_real_type,
561 enum hppa_reloc_field_selector_type_alt,
562 int, long, int *));
563static int is_end_of_statement PARAMS ((void));
564static int reg_name_search PARAMS ((char *));
565static int pa_chk_field_selector PARAMS ((char **));
566static int is_same_frag PARAMS ((fragS *, fragS *));
567static void process_exit PARAMS ((void));
252b5132 568static int log2 PARAMS ((int));
252b5132 569static unsigned int pa_stringer_aux PARAMS ((char *));
1cf6ae67
JL		 570static fp_operand_format pa_parse_fp_cnv_format PARAMS ((char **s));
571static int pa_parse_ftest_gfx_completer PARAMS ((char **));
252b5132
RH		 572
573#ifdef OBJ_ELF
574static void hppa_elf_mark_end_of_function PARAMS ((void));
575static void pa_build_unwind_subspace PARAMS ((struct call_info *));
576#endif
577
578/* File and gloally scoped variable declarations. */
579
49863f82 580#ifdef OBJ_SOM
252b5132
RH		 581/* Root and final entry in the space chain. */
582static sd_chain_struct *space_dict_root;
583static sd_chain_struct *space_dict_last;
584
585/* The current space and subspace. */
586static sd_chain_struct *current_space;
587static ssd_chain_struct *current_subspace;
49863f82 588#endif
252b5132
RH		 589
590/* Root of the call_info chain. */
591static struct call_info *call_info_root;
592
593/* The last call_info (for functions) structure
594 seen so it can be associated with fixups and
595 function labels. */
596static struct call_info *last_call_info;
597
598/* The last call description (for actual calls). */
599static struct call_desc last_call_desc;
600
601/* handle of the OPCODE hash table */
602static struct hash_control *op_hash = NULL;
603
604/* This array holds the chars that always start a comment. If the
605 pre-processor is disabled, these aren't very useful. */
606const char comment_chars[] = ";";
607
608/* Table of pseudo ops for the PA. FIXME -- how many of these
609 are now redundant with the overall GAS and the object file
610 dependent tables? */
611const pseudo_typeS md_pseudo_table[] =
612{
613 /* align pseudo-ops on the PA specify the actual alignment requested,
614 not the log2 of the requested alignment. */
49863f82 615#ifdef OBJ_SOM
252b5132 616 {"align", pa_align, 8},
49863f82
JL		 617#endif
618#ifdef OBJ_ELF
619 {"align", s_align_bytes, 8},
620#endif
252b5132
RH		 621 {"begin_brtab", pa_brtab, 1},
622 {"begin_try", pa_try, 1},
623 {"block", pa_block, 1},
624 {"blockz", pa_block, 0},
625 {"byte", pa_cons, 1},
626 {"call", pa_call, 0},
627 {"callinfo", pa_callinfo, 0},
628 {"code", pa_code, 0},
629 {"comm", pa_comm, 0},
630#ifdef OBJ_SOM
631 {"compiler", pa_compiler, 0},
632#endif
633 {"copyright", pa_copyright, 0},
634 {"data", pa_data, 0},
635 {"double", pa_float_cons, 'd'},
077db52a 636 {"dword", pa_cons, 8},
252b5132
RH		 637 {"end", pa_end, 0},
638 {"end_brtab", pa_brtab, 0},
639 {"end_try", pa_try, 0},
640 {"enter", pa_enter, 0},
641 {"entry", pa_entry, 0},
642 {"equ", pa_equ, 0},
643 {"exit", pa_exit, 0},
644 {"export", pa_export, 0},
2d93dcc4
JL		 645#ifdef OBJ_ELF
646 { "file", dwarf2_directive_file },
647#endif
252b5132
RH		 648 {"fill", pa_fill, 0},
649 {"float", pa_float_cons, 'f'},
650 {"half", pa_cons, 2},
651 {"import", pa_import, 0},
652 {"int", pa_cons, 4},
653 {"label", pa_label, 0},
654 {"lcomm", pa_lcomm, 0},
655 {"leave", pa_leave, 0},
656 {"level", pa_level, 0},
2d93dcc4
JL		 657#ifdef OBJ_ELF
658 { "loc", dwarf2_directive_loc },
659#endif
252b5132
RH		 660 {"long", pa_cons, 4},
661 {"lsym", pa_lsym, 0},
49863f82 662#ifdef OBJ_SOM
252b5132 663 {"nsubspa", pa_subspace, 1},
49863f82 664#endif
252b5132
RH		 665 {"octa", pa_cons, 16},
666 {"org", pa_origin, 0},
667 {"origin", pa_origin, 0},
668 {"param", pa_param, 0},
669 {"proc", pa_proc, 0},
670 {"procend", pa_procend, 0},
671 {"quad", pa_cons, 8},
672 {"reg", pa_equ, 1},
673 {"short", pa_cons, 2},
674 {"single", pa_float_cons, 'f'},
49863f82 675#ifdef OBJ_SOM
252b5132
RH		 676 {"space", pa_space, 0},
677 {"spnum", pa_spnum, 0},
49863f82 678#endif
252b5132
RH		 679 {"string", pa_stringer, 0},
680 {"stringz", pa_stringer, 1},
49863f82 681#ifdef OBJ_SOM
252b5132 682 {"subspa", pa_subspace, 0},
49863f82 683#endif
252b5132
RH		 684 {"text", pa_text, 0},
685 {"version", pa_version, 0},
686 {"word", pa_cons, 4},
687 {NULL, 0, 0}
688};
689
690/* This array holds the chars that only start a comment at the beginning of
691 a line. If the line seems to have the form '# 123 filename'
692 .line and .file directives will appear in the pre-processed output.
693
694 Note that input_file.c hand checks for '#' at the beginning of the
695 first line of the input file. This is because the compiler outputs
696 #NO_APP at the beginning of its output.
697
698 Also note that C style comments will always work. */
699const char line_comment_chars[] = "#";
700
701/* This array holds the characters which act as line separators. */
702const char line_separator_chars[] = "!";
703
704/* Chars that can be used to separate mant from exp in floating point nums. */
705const char EXP_CHARS[] = "eE";
706
707/* Chars that mean this number is a floating point constant.
708 As in 0f12.456 or 0d1.2345e12.
709
710 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
711 changed in read.c. Ideally it shouldn't hae to know abou it at
712 all, but nothing is ideal around here. */
713const char FLT_CHARS[] = "rRsSfFdDxXpP";
714
715static struct pa_it the_insn;
716
717/* Points to the end of an expression just parsed by get_expressoin
718 and friends. FIXME. This shouldn't be handled with a file-global
719 variable. */
720static char *expr_end;
721
722/* Nonzero if a .callinfo appeared within the current procedure. */
723static int callinfo_found;
724
725/* Nonzero if the assembler is currently within a .entry/.exit pair. */
726static int within_entry_exit;
727
728/* Nonzero if the assembler is currently within a procedure definition. */
729static int within_procedure;
730
731/* Handle on strucutre which keep track of the last symbol
732 seen in each subspace. */
733static label_symbol_struct *label_symbols_rootp = NULL;
734
735/* Holds the last field selector. */
736static int hppa_field_selector;
737
0f4f8b56
JL		 738/* Nonzero when strict syntax checking is enabled. Zero otherwise.
739
740 Each opcode in the table has a flag which indicates whether or not
741 strict syntax checking should be enabled for that instruction. */
742static int strict = 0;
743
993142d5 744#ifdef OBJ_SOM
252b5132
RH		 745/* A dummy bfd symbol so that all relocations have symbols of some kind. */
746static symbolS *dummy_symbol;
993142d5 747#endif
252b5132
RH		 748
749/* Nonzero if errors are to be printed. */
750static int print_errors = 1;
751
752/* List of registers that are pre-defined:
753
754 Each general register has one predefined name of the form
755 %r<REGNUM> which has the value <REGNUM>.
756
757 Space and control registers are handled in a similar manner,
758 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
759
760 Likewise for the floating point registers, but of the form
761 %fr<REGNUM>. Floating point registers have additional predefined
762 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
763 again have the value <REGNUM>.
764
765 Many registers also have synonyms:
766
767 %r26 - %r23 have %arg0 - %arg3 as synonyms
768 %r28 - %r29 have %ret0 - %ret1 as synonyms
769 %r30 has %sp as a synonym
770 %r27 has %dp as a synonym
771 %r2 has %rp as a synonym
772
773 Almost every control register has a synonym; they are not listed
774 here for brevity.
775
776 The table is sorted. Suitable for searching by a binary search. */
777
778static const struct pd_reg pre_defined_registers[] =
779{
780 {"%arg0", 26},
781 {"%arg1", 25},
782 {"%arg2", 24},
783 {"%arg3", 23},
784 {"%cr0", 0},
785 {"%cr10", 10},
786 {"%cr11", 11},
787 {"%cr12", 12},
788 {"%cr13", 13},
789 {"%cr14", 14},
790 {"%cr15", 15},
791 {"%cr16", 16},
792 {"%cr17", 17},
793 {"%cr18", 18},
794 {"%cr19", 19},
795 {"%cr20", 20},
796 {"%cr21", 21},
797 {"%cr22", 22},
798 {"%cr23", 23},
799 {"%cr24", 24},
800 {"%cr25", 25},
801 {"%cr26", 26},
802 {"%cr27", 27},
803 {"%cr28", 28},
804 {"%cr29", 29},
805 {"%cr30", 30},
806 {"%cr31", 31},
807 {"%cr8", 8},
808 {"%cr9", 9},
809 {"%dp", 27},
810 {"%eiem", 15},
811 {"%eirr", 23},
812 {"%fr0", 0},
813 {"%fr0l", 0},
814 {"%fr0r", 0},
815 {"%fr1", 1},
816 {"%fr10", 10},
817 {"%fr10l", 10},
818 {"%fr10r", 10},
819 {"%fr11", 11},
820 {"%fr11l", 11},
821 {"%fr11r", 11},
822 {"%fr12", 12},
823 {"%fr12l", 12},
824 {"%fr12r", 12},
825 {"%fr13", 13},
826 {"%fr13l", 13},
827 {"%fr13r", 13},
828 {"%fr14", 14},
829 {"%fr14l", 14},
830 {"%fr14r", 14},
831 {"%fr15", 15},
832 {"%fr15l", 15},
833 {"%fr15r", 15},
834 {"%fr16", 16},
835 {"%fr16l", 16},
836 {"%fr16r", 16},
837 {"%fr17", 17},
838 {"%fr17l", 17},
839 {"%fr17r", 17},
840 {"%fr18", 18},
841 {"%fr18l", 18},
842 {"%fr18r", 18},
843 {"%fr19", 19},
844 {"%fr19l", 19},
845 {"%fr19r", 19},
846 {"%fr1l", 1},
847 {"%fr1r", 1},
848 {"%fr2", 2},
849 {"%fr20", 20},
850 {"%fr20l", 20},
851 {"%fr20r", 20},
852 {"%fr21", 21},
853 {"%fr21l", 21},
854 {"%fr21r", 21},
855 {"%fr22", 22},
856 {"%fr22l", 22},
857 {"%fr22r", 22},
858 {"%fr23", 23},
859 {"%fr23l", 23},
860 {"%fr23r", 23},
861 {"%fr24", 24},
862 {"%fr24l", 24},
863 {"%fr24r", 24},
864 {"%fr25", 25},
865 {"%fr25l", 25},
866 {"%fr25r", 25},
867 {"%fr26", 26},
868 {"%fr26l", 26},
869 {"%fr26r", 26},
870 {"%fr27", 27},
871 {"%fr27l", 27},
872 {"%fr27r", 27},
873 {"%fr28", 28},
874 {"%fr28l", 28},
875 {"%fr28r", 28},
876 {"%fr29", 29},
877 {"%fr29l", 29},
878 {"%fr29r", 29},
879 {"%fr2l", 2},
880 {"%fr2r", 2},
881 {"%fr3", 3},
882 {"%fr30", 30},
883 {"%fr30l", 30},
884 {"%fr30r", 30},
885 {"%fr31", 31},
886 {"%fr31l", 31},
887 {"%fr31r", 31},
888 {"%fr3l", 3},
889 {"%fr3r", 3},
890 {"%fr4", 4},
891 {"%fr4l", 4},
892 {"%fr4r", 4},
893 {"%fr5", 5},
894 {"%fr5l", 5},
895 {"%fr5r", 5},
896 {"%fr6", 6},
897 {"%fr6l", 6},
898 {"%fr6r", 6},
899 {"%fr7", 7},
900 {"%fr7l", 7},
901 {"%fr7r", 7},
902 {"%fr8", 8},
903 {"%fr8l", 8},
904 {"%fr8r", 8},
905 {"%fr9", 9},
906 {"%fr9l", 9},
907 {"%fr9r", 9},
908 {"%hta", 25},
909 {"%iir", 19},
910 {"%ior", 21},
911 {"%ipsw", 22},
912 {"%isr", 20},
913 {"%itmr", 16},
914 {"%iva", 14},
915 {"%pcoq", 18},
916 {"%pcsq", 17},
917 {"%pidr1", 8},
918 {"%pidr2", 9},
919 {"%pidr3", 12},
920 {"%pidr4", 13},
921 {"%ppda", 24},
922 {"%r0", 0},
923 {"%r1", 1},
924 {"%r10", 10},
925 {"%r11", 11},
926 {"%r12", 12},
927 {"%r13", 13},
928 {"%r14", 14},
929 {"%r15", 15},
930 {"%r16", 16},
931 {"%r17", 17},
932 {"%r18", 18},
933 {"%r19", 19},
934 {"%r2", 2},
935 {"%r20", 20},
936 {"%r21", 21},
937 {"%r22", 22},
938 {"%r23", 23},
939 {"%r24", 24},
940 {"%r25", 25},
941 {"%r26", 26},
942 {"%r27", 27},
943 {"%r28", 28},
944 {"%r29", 29},
945 {"%r3", 3},
946 {"%r30", 30},
947 {"%r31", 31},
948 {"%r4", 4},
949 {"%r5", 5},
950 {"%r6", 6},
951 {"%r7", 7},
952 {"%r8", 8},
953 {"%r9", 9},
954 {"%rctr", 0},
955 {"%ret0", 28},
956 {"%ret1", 29},
957 {"%rp", 2},
958 {"%sar", 11},
959 {"%sp", 30},
960 {"%sr0", 0},
961 {"%sr1", 1},
962 {"%sr2", 2},
963 {"%sr3", 3},
964 {"%sr4", 4},
965 {"%sr5", 5},
966 {"%sr6", 6},
967 {"%sr7", 7},
968 {"%tr0", 24},
969 {"%tr1", 25},
970 {"%tr2", 26},
971 {"%tr3", 27},
972 {"%tr4", 28},
973 {"%tr5", 29},
974 {"%tr6", 30},
975 {"%tr7", 31}
976};
977
978/* This table is sorted by order of the length of the string. This is
979 so we check for <> before we check for <. If we had a <> and checked
980 for < first, we would get a false match. */
981static const struct fp_cond_map fp_cond_map[] =
982{
983 {"false?", 0},
984 {"false", 1},
985 {"true?", 30},
986 {"true", 31},
987 {"!<=>", 3},
988 {"!?>=", 8},
989 {"!?<=", 16},
990 {"!<>", 7},
991 {"!>=", 11},
992 {"!?>", 12},
993 {"?<=", 14},
994 {"!<=", 19},
995 {"!?<", 20},
996 {"?>=", 22},
997 {"!?=", 24},
998 {"!=t", 27},
999 {"<=>", 29},
1000 {"=t", 5},
1001 {"?=", 6},
1002 {"?<", 10},
1003 {"<=", 13},
1004 {"!>", 15},
1005 {"?>", 18},
1006 {">=", 21},
1007 {"!<", 23},
1008 {"<>", 25},
1009 {"!=", 26},
1010 {"!?", 28},
1011 {"?", 2},
1012 {"=", 4},
1013 {"<", 9},
1014 {">", 17}
1015};
1016
1017static const struct selector_entry selector_table[] =
1018{
1019 {"f", e_fsel},
1020 {"l", e_lsel},
1021 {"ld", e_ldsel},
1022 {"lp", e_lpsel},
1023 {"lr", e_lrsel},
1024 {"ls", e_lssel},
1025 {"lt", e_ltsel},
39ba5561 1026 {"ltp", e_ltpsel},
252b5132
RH		 1027 {"n", e_nsel},
1028 {"nl", e_nlsel},
1029 {"nlr", e_nlrsel},
1030 {"p", e_psel},
1031 {"r", e_rsel},
1032 {"rd", e_rdsel},
1033 {"rp", e_rpsel},
1034 {"rr", e_rrsel},
1035 {"rs", e_rssel},
1036 {"rt", e_rtsel},
39ba5561 1037 {"rtp", e_rtpsel},
252b5132
RH		 1038 {"t", e_tsel},
1039};
1040
49863f82 1041#ifdef OBJ_SOM
252b5132
RH		 1042/* default space and subspace dictionaries */
1043
1044#define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1045#define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1046
1047/* pre-defined subsegments (subspaces) for the HPPA. */
1048#define SUBSEG_CODE 0
1049#define SUBSEG_LIT 1
1050#define SUBSEG_MILLI 2
1051#define SUBSEG_DATA 0
1052#define SUBSEG_BSS 2
1053#define SUBSEG_UNWIND 3
1054#define SUBSEG_GDB_STRINGS 0
1055#define SUBSEG_GDB_SYMBOLS 1
1056
1057static struct default_subspace_dict pa_def_subspaces[] =
1058{
49863f82
JL		 1059 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE},
1060 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA},
1061 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT},
1062 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI},
1063 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS},
252b5132
RH		 1064 {NULL, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1065};
1066
1067static struct default_space_dict pa_def_spaces[] =
1068{
49863f82
JL		 1069 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL},
1070 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL},
1071 {NULL, 0, 0, 0, 0, 0, ASEC_NULL}
252b5132
RH		 1072};
1073
1074/* Misc local definitions used by the assembler. */
1075
252b5132
RH		 1076/* These macros are used to maintain spaces/subspaces. */
1077#define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1078#define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1079#define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1080#define SPACE_NAME(space_chain) (space_chain)->sd_name
1081
1082#define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
1083#define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
49863f82
JL		 1084#endif
1085
1086/* Return nonzero if the string pointed to by S potentially represents
1087 a right or left half of a FP register */
1088#define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1089#define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
252b5132
RH		 1090
1091/* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1092 main loop after insertion. */
1093
1094#define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1095 { \
1096 ((OPCODE) |= (FIELD) << (START)); \
1097 continue; \
1098 }
1099
1100/* Simple range checking for FIELD againt HIGH and LOW bounds.
1101 IGNORE is used to suppress the error message. */
1102
1103#define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1104 { \
1105 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1106 { \
1107 if (! IGNORE) \
1108 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1109 (int) (FIELD));\
1110 break; \
1111 } \
1112 }
1113
1114#define is_DP_relative(exp) \
1115 ((exp).X_op == O_subtract \
a0f75b47 1116 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
252b5132
RH		 1117
1118#define is_PC_relative(exp) \
1119 ((exp).X_op == O_subtract \
a0f75b47 1120 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
252b5132
RH		 1121
1122/* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1123 always be able to reduce the expression to a constant, so we don't
1124 need real complex handling yet. */
1125#define is_complex(exp) \
1126 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1127
1128/* Actual functions to implement the PA specific code for the assembler. */
1129
1130/* Called before writing the object file. Make sure entry/exit and
1131 proc/procend pairs match. */
1132
1133void
1134pa_check_eof ()
1135{
1136 if (within_entry_exit)
1137 as_fatal (_("Missing .exit\n"));
1138
1139 if (within_procedure)
1140 as_fatal (_("Missing .procend\n"));
1141}
1142
252b5132
RH		 1143/* Returns a pointer to the label_symbol_struct for the current space.
1144 or NULL if no label_symbol_struct exists for the current space. */
1145
1146static label_symbol_struct *
1147pa_get_label ()
1148{
1149 label_symbol_struct *label_chain;
252b5132
RH		 1150
1151 for (label_chain = label_symbols_rootp;
1152 label_chain;
1153 label_chain = label_chain->lss_next)
49863f82
JL		 1154 {
1155#ifdef OBJ_SOM
1156 if (current_space == label_chain->lss_space && label_chain->lss_label)
1157 return label_chain;
1158#endif
1159#ifdef OBJ_ELF
1160 if (now_seg == label_chain->lss_segment && label_chain->lss_label)
252b5132 1161 return label_chain;
49863f82
JL		 1162#endif
1163 }
252b5132
RH		 1164
1165 return NULL;
1166}
1167
1168/* Defines a label for the current space. If one is already defined,
1169 this function will replace it with the new label. */
1170
1171void
1172pa_define_label (symbol)
1173 symbolS *symbol;
1174{
1175 label_symbol_struct *label_chain = pa_get_label ();
252b5132
RH		 1176
1177 if (label_chain)
1178 label_chain->lss_label = symbol;
1179 else
1180 {
1181 /* Create a new label entry and add it to the head of the chain. */
1182 label_chain
1183 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1184 label_chain->lss_label = symbol;
49863f82
JL		 1185#ifdef OBJ_SOM
1186 label_chain->lss_space = current_space;
1187#endif
1188#ifdef OBJ_ELF
1189 label_chain->lss_segment = now_seg;
1190#endif
252b5132
RH		 1191 label_chain->lss_next = NULL;
1192
1193 if (label_symbols_rootp)
1194 label_chain->lss_next = label_symbols_rootp;
1195
1196 label_symbols_rootp = label_chain;
1197 }
1198}
1199
1200/* Removes a label definition for the current space.
1201 If there is no label_symbol_struct entry, then no action is taken. */
1202
1203static void
1204pa_undefine_label ()
1205{
1206 label_symbol_struct *label_chain;
1207 label_symbol_struct *prev_label_chain = NULL;
252b5132
RH		 1208
1209 for (label_chain = label_symbols_rootp;
1210 label_chain;
1211 label_chain = label_chain->lss_next)
1212 {
49863f82
JL		 1213 if (1
1214#ifdef OBJ_SOM
1215 && current_space == label_chain->lss_space && label_chain->lss_label
1216#endif
1217#ifdef OBJ_ELF
1218 && now_seg == label_chain->lss_segment && label_chain->lss_label
1219#endif
1220 )
252b5132
RH		 1221 {
1222 /* Remove the label from the chain and free its memory. */
1223 if (prev_label_chain)
1224 prev_label_chain->lss_next = label_chain->lss_next;
1225 else
1226 label_symbols_rootp = label_chain->lss_next;
1227
1228 free (label_chain);
1229 break;
1230 }
1231 prev_label_chain = label_chain;
1232 }
1233}
1234
1235
1236/* An HPPA-specific version of fix_new. This is required because the HPPA
1237 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1238 results in the creation of an instance of an hppa_fix_struct. An
1239 hppa_fix_struct stores the extra information along with a pointer to the
1240 original fixS. This is attached to the original fixup via the
1241 tc_fix_data field. */
1242
1243static void
1244fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
1245 r_type, r_field, r_format, arg_reloc, unwind_bits)
1246 fragS *frag;
1247 int where;
1248 int size;
1249 symbolS *add_symbol;
1250 long offset;
1251 expressionS *exp;
1252 int pcrel;
1253 bfd_reloc_code_real_type r_type;
1254 enum hppa_reloc_field_selector_type_alt r_field;
1255 int r_format;
1256 long arg_reloc;
1257 int* unwind_bits;
1258{
1259 fixS *new_fix;
1260
1261 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
1262 obstack_alloc (&notes, sizeof (struct hppa_fix_struct));
1263
1264 if (exp != NULL)
1265 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1266 else
1267 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
1268 new_fix->tc_fix_data = (void *) hppa_fix;
1269 hppa_fix->fx_r_type = r_type;
1270 hppa_fix->fx_r_field = r_field;
1271 hppa_fix->fx_r_format = r_format;
1272 hppa_fix->fx_arg_reloc = arg_reloc;
1273 hppa_fix->segment = now_seg;
1274#ifdef OBJ_SOM
1275 if (r_type == R_ENTRY || r_type == R_EXIT)
1276 new_fix->fx_offset = *unwind_bits;
1277#endif
1278
1279 /* foo-$global$ is used to access non-automatic storage. $global$
1280 is really just a marker and has served its purpose, so eliminate
1281 it now so as not to confuse write.c. */
1282 if (new_fix->fx_subsy
1283 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
1284 new_fix->fx_subsy = NULL;
1285}
1286
1287/* Parse a .byte, .word, .long expression for the HPPA. Called by
1288 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1289
1290void
1291parse_cons_expression_hppa (exp)
1292 expressionS *exp;
1293{
1294 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
1295 expression (exp);
1296}
1297
1298/* This fix_new is called by cons via TC_CONS_FIX_NEW.
1299 hppa_field_selector is set by the parse_cons_expression_hppa. */
1300
1301void
1302cons_fix_new_hppa (frag, where, size, exp)
1303 fragS *frag;
1304 int where;
1305 int size;
1306 expressionS *exp;
1307{
1308 unsigned int rel_type;
1309
1310 /* Get a base relocation type. */
1311 if (is_DP_relative (*exp))
1312 rel_type = R_HPPA_GOTOFF;
1313 else if (is_complex (*exp))
1314 rel_type = R_HPPA_COMPLEX;
1315 else
1316 rel_type = R_HPPA;
1317
1318 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
1319 as_warn (_("Invalid field selector. Assuming F%%."));
1320
1321 fix_new_hppa (frag, where, size,
1322 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
077db52a 1323 hppa_field_selector, size * 8, 0, NULL);
252b5132
RH		 1324
1325 /* Reset field selector to its default state. */
1326 hppa_field_selector = 0;
1327}
1328
1329/* This function is called once, at assembler startup time. It should
1330 set up all the tables, etc. that the MD part of the assembler will need. */
1331
1332void
1333md_begin ()
1334{
1335 const char *retval = NULL;
1336 int lose = 0;
1337 unsigned int i = 0;
1338
1339 last_call_info = NULL;
1340 call_info_root = NULL;
1341
1342 /* Set the default machine type. */
1343 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
1344 as_warn (_("could not set architecture and machine"));
1345
1346 /* Folding of text and data segments fails miserably on the PA.
1347 Warn user and disable "-R" option. */
1348 if (flag_readonly_data_in_text)
1349 {
1350 as_warn (_("-R option not supported on this target."));
1351 flag_readonly_data_in_text = 0;
1352 }
1353
49863f82 1354#ifdef OBJ_SOM
252b5132 1355 pa_spaces_begin ();
49863f82 1356#endif
252b5132
RH		 1357
1358 op_hash = hash_new ();
1359
1360 while (i < NUMOPCODES)
1361 {
1362 const char *name = pa_opcodes[i].name;
1363 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
1364 if (retval != NULL && *retval != '\0')
1365 {
1366 as_fatal (_("Internal error: can't hash `%s': %s\n"), name, retval);
1367 lose = 1;
1368 }
1369 do
1370 {
1371 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
1372 != pa_opcodes[i].match)
1373 {
1374 fprintf (stderr, _("internal error: losing opcode: `%s' \"%s\"\n"),
1375 pa_opcodes[i].name, pa_opcodes[i].args);
1376 lose = 1;
1377 }
1378 ++i;
1379 }
1380 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
1381 }
1382
1383 if (lose)
1384 as_fatal (_("Broken assembler. No assembly attempted."));
1385
49863f82 1386#ifdef OBJ_SOM
252b5132
RH		 1387 /* SOM will change text_section. To make sure we never put
1388 anything into the old one switch to the new one now. */
1389 subseg_set (text_section, 0);
49863f82 1390#endif
252b5132 1391
993142d5 1392#ifdef OBJ_SOM
252b5132
RH		 1393 dummy_symbol = symbol_find_or_make ("L$dummy");
1394 S_SET_SEGMENT (dummy_symbol, text_section);
993142d5
ILT		 1395 /* Force the symbol to be converted to a real symbol. */
1396 (void) symbol_get_bfdsym (dummy_symbol);
1397#endif
252b5132
RH		 1398}
1399
1400/* Assemble a single instruction storing it into a frag. */
1401void
1402md_assemble (str)
1403 char *str;
1404{
1405 char *to;
1406
1407 /* The had better be something to assemble. */
1408 assert (str);
1409
1410 /* If we are within a procedure definition, make sure we've
1411 defined a label for the procedure; handle case where the
1412 label was defined after the .PROC directive.
1413
1414 Note there's not need to diddle with the segment or fragment
1415 for the label symbol in this case. We have already switched
1416 into the new $CODE$ subspace at this point. */
1417 if (within_procedure && last_call_info->start_symbol == NULL)
1418 {
1419 label_symbol_struct *label_symbol = pa_get_label ();
1420
1421 if (label_symbol)
1422 {
1423 if (label_symbol->lss_label)
1424 {
1425 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47
ILT		 1426 symbol_get_bfdsym (label_symbol->lss_label)->flags
1427 |= BSF_FUNCTION;
252b5132
RH		 1428#ifdef OBJ_SOM
1429 /* Also handle allocation of a fixup to hold the unwind
1430 information when the label appears after the proc/procend. */
1431 if (within_entry_exit)
1432 {
1433 char *where = frag_more (0);
1434
1435 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
1436 NULL, (offsetT) 0, NULL,
1437 0, R_HPPA_ENTRY, e_fsel, 0, 0,
1438 (int *)&last_call_info->ci_unwind.descriptor);
1439 }
1440#endif
1441 }
1442 else
1443 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
1444 }
1445 else
1446 as_bad (_("Missing function name for .PROC"));
1447 }
1448
1449 /* Assemble the instruction. Results are saved into "the_insn". */
1450 pa_ip (str);
1451
1452 /* Get somewhere to put the assembled instrution. */
1453 to = frag_more (4);
1454
1455 /* Output the opcode. */
1456 md_number_to_chars (to, the_insn.opcode, 4);
1457
1458 /* If necessary output more stuff. */
1459 if (the_insn.reloc != R_HPPA_NONE)
1460 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1461 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1462 the_insn.reloc, the_insn.field_selector,
1463 the_insn.format, the_insn.arg_reloc, NULL);
2d93dcc4
JL		 1464
1465#ifdef OBJ_ELF
1466 if (debug_type == DEBUG_DWARF2)
b52c78b8
JL		 1467 {
1468 bfd_vma addr;
1469
e061d86f
JL		 1470 /* First update the notion of the current source line. */
1471 dwarf2_where (&debug_line);
1472
1473 /* We want the offset of the start of this instruction within the
1474 the current frag. */
1475 addr = frag_now->fr_address + frag_now_fix () - 4;
2d93dcc4 1476
e061d86f 1477 /* And record the information. */
b52c78b8 1478 dwarf2_gen_line_info (addr, &debug_line);
b52c78b8
JL		 1479 }
1480#endif
252b5132
RH		 1481}
1482
1483/* Do the real work for assembling a single instruction. Store results
1484 into the global "the_insn" variable. */
1485
1486static void
1487pa_ip (str)
1488 char *str;
1489{
1490 char *error_message = "";
1491 char *s, c, *argstart, *name, *save_s;
1492 const char *args;
1493 int match = FALSE;
1494 int comma = 0;
1495 int cmpltr, nullif, flag, cond, num;
1496 unsigned long opcode;
1497 struct pa_opcode *insn;
1498
49863f82 1499#ifdef OBJ_SOM
252b5132
RH		 1500 /* We must have a valid space and subspace. */
1501 pa_check_current_space_and_subspace ();
49863f82 1502#endif
252b5132 1503
b1c5e0ee
JL		 1504 /* Convert everything up to the first whitespace character into lower
1505 case. */
1506 for (s = str; *s != ' ' && *s != '\t' && *s != '\n' && *s != '\0'; s++)
1507 if (isupper (*s))
1508 *s = tolower (*s);
1509
252b5132
RH		 1510 /* Skip to something interesting. */
1511 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1512 ;
1513
1514 switch (*s)
1515 {
1516
1517 case '\0':
1518 break;
1519
1520 case ',':
1521 comma = 1;
1522
1523 /*FALLTHROUGH */
1524
1525 case ' ':
1526 *s++ = '\0';
1527 break;
1528
1529 default:
1530 as_fatal (_("Unknown opcode: `%s'"), str);
1531 }
1532
1533 save_s = str;
1534
252b5132
RH		 1535 /* Look up the opcode in the has table. */
1536 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1537 {
1538 as_bad ("Unknown opcode: `%s'", str);
1539 return;
1540 }
1541
1542 if (comma)
1543 {
1544 *--s = ',';
1545 }
1546
1547 /* Mark the location where arguments for the instruction start, then
1548 start processing them. */
1549 argstart = s;
1550 for (;;)
1551 {
1552 /* Do some initialization. */
1553 opcode = insn->match;
0f4f8b56 1554 strict = (insn->flags & FLAG_STRICT);
252b5132
RH		 1555 memset (&the_insn, 0, sizeof (the_insn));
1556
1557 the_insn.reloc = R_HPPA_NONE;
1558
1559 /* If this instruction is specific to a particular architecture,
1560 then set a new architecture. */
1561 /* But do not automatically promote to pa2.0. The automatic promotion
1562 crud is for compatability with HP's old assemblers only. */
1563 if (insn->arch < 20
1564 && bfd_get_mach (stdoutput) < insn->arch)
1565 {
1566 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, insn->arch))
1567 as_warn (_("could not update architecture and machine"));
1568 }
1569 else if (bfd_get_mach (stdoutput) < insn->arch)
1570 {
1571 match = FALSE;
1572 goto failed;
1573 }
1574
1575 /* Build the opcode, checking as we go to make
1576 sure that the operands match. */
1577 for (args = insn->args;; ++args)
1578 {
680ef6de
JL		 1579 /* Absorb white space in instruction. */
1580 while (*s == ' ' || *s == '\t')
1581 s++;
1582
252b5132
RH		 1583 switch (*args)
1584 {
1585
1586 /* End of arguments. */
1587 case '\0':
1588 if (*s == '\0')
1589 match = TRUE;
1590 break;
1591
1592 case '+':
1593 if (*s == '+')
1594 {
1595 ++s;
1596 continue;
1597 }
1598 if (*s == '-')
1599 continue;
1600 break;
1601
1602 /* These must match exactly. */
1603 case '(':
1604 case ')':
1605 case ',':
1606 case ' ':
1607 if (*s++ == *args)
1608 continue;
1609 break;
1610
1611 /* Handle a 5 bit register or control register field at 10. */
1612 case 'b':
1613 case '^':
0f4f8b56
JL		 1614 /* This should be more strict. Small steps. */
1615 if (strict && *s != '%')
1616 break;
e7c1f43c 1617 num = pa_parse_number (&s, 0);
252b5132
RH		 1618 CHECK_FIELD (num, 31, 0, 0);
1619 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
1620
a97685e9
JL		 1621 /* Handle %sar or %cr11. No bits get set, we just verify that it
1622 is there. */
1623 case '!':
1624 /* Skip whitespace before register. */
1625 while (*s == ' ' || *s == '\t')
1626 s = s + 1;
1627
1628 if (!strncasecmp(s, "%sar", 4))
1629 {
1630 s += 4;
1631 continue;
1632 }
1633 else if (!strncasecmp(s, "%cr11", 5))
1634 {
1635 s += 5;
1636 continue;
1637 }
1638 break;
1639
252b5132
RH		 1640 /* Handle a 5 bit register field at 15. */
1641 case 'x':
0f4f8b56
JL		 1642 /* This should be more strict. Small steps. */
1643 if (strict && *s != '%')
1644 break;
e7c1f43c 1645 num = pa_parse_number (&s, 0);
252b5132
RH		 1646 CHECK_FIELD (num, 31, 0, 0);
1647 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1648
1649 /* Handle a 5 bit register field at 31. */
252b5132 1650 case 't':
0f4f8b56
JL		 1651 /* This should be more strict. Small steps. */
1652 if (strict && *s != '%')
1653 break;
e7c1f43c 1654 num = pa_parse_number (&s, 0);
252b5132
RH		 1655 CHECK_FIELD (num, 31, 0, 0);
1656 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1657
413c94ba
JL		 1658 /* Handle a 5 bit register field at 10 and 15. */
1659 case 'a':
0f4f8b56
JL		 1660 /* This should be more strict. Small steps. */
1661 if (strict && *s != '%')
1662 break;
e7c1f43c 1663 num = pa_parse_number (&s, 0);
413c94ba
JL		 1664 CHECK_FIELD (num, 31, 0, 0);
1665 opcode |= num << 16;
1666 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
1667
252b5132
RH		 1668 /* Handle a 5 bit field length at 31. */
1669 case 'T':
1670 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1671 if (strict && the_insn.exp.X_op != O_constant)
1672 break;
252b5132
RH		 1673 s = expr_end;
1674 CHECK_FIELD (num, 32, 1, 0);
1675 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
1676
1677 /* Handle a 5 bit immediate at 15. */
1678 case '5':
1679 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1680 if (strict && the_insn.exp.X_op != O_constant)
1681 break;
252b5132 1682 s = expr_end;
0f4f8b56
JL		 1683 /* When in strict mode, we want to just reject this
1684 match instead of giving an out of range error. */
1685 CHECK_FIELD (num, 15, -16, strict);
252b5132
RH		 1686 low_sign_unext (num, 5, &num);
1687 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1688
1689 /* Handle a 5 bit immediate at 31. */
1690 case 'V':
1691 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1692 if (strict && the_insn.exp.X_op != O_constant)
1693 break;
252b5132 1694 s = expr_end;
0f4f8b56
JL		 1695 /* When in strict mode, we want to just reject this
1696 match instead of giving an out of range error. */
1697 CHECK_FIELD (num, 15, -16, strict)
252b5132
RH		 1698 low_sign_unext (num, 5, &num);
1699 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1700
1701 /* Handle an unsigned 5 bit immediate at 31. */
1702 case 'r':
1703 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1704 if (strict && the_insn.exp.X_op != O_constant)
1705 break;
252b5132
RH		 1706 s = expr_end;
1707 CHECK_FIELD (num, 31, 0, 0);
0f4f8b56 1708 INSERT_FIELD_AND_CONTINUE (opcode, num, strict);
252b5132
RH		 1709
1710 /* Handle an unsigned 5 bit immediate at 15. */
1711 case 'R':
1712 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1713 if (strict && the_insn.exp.X_op != O_constant)
1714 break;
252b5132 1715 s = expr_end;
0f4f8b56 1716 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 1717 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1718
680ef6de
JL		 1719 /* Handle an unsigned 10 bit immediate at 15. */
1720 case 'U':
1721 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 1722 if (strict && the_insn.exp.X_op != O_constant)
1723 break;
680ef6de 1724 s = expr_end;
0f4f8b56 1725 CHECK_FIELD (num, 1023, 0, strict);
680ef6de
JL		 1726 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
1727
252b5132
RH		 1728 /* Handle a 2 bit space identifier at 17. */
1729 case 's':
0f4f8b56
JL		 1730 /* This should be more strict. Small steps. */
1731 if (strict && *s != '%')
1732 break;
e7c1f43c 1733 num = pa_parse_number (&s, 0);
252b5132
RH		 1734 CHECK_FIELD (num, 3, 0, 1);
1735 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
1736
1737 /* Handle a 3 bit space identifier at 18. */
1738 case 'S':
0f4f8b56
JL		 1739 /* This should be more strict. Small steps. */
1740 if (strict && *s != '%')
1741 break;
e7c1f43c 1742 num = pa_parse_number (&s, 0);
252b5132
RH		 1743 CHECK_FIELD (num, 7, 0, 1);
1744 dis_assemble_3 (num, &num);
1745 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
1746
28252e61 1747 /* Handle all completers. */
252b5132 1748 case 'c':
28252e61
JL		 1749 switch (*++args)
1750 {
1751
1752 /* Handle a completer for an indexing load or store. */
1753 case 'x':
252b5132 1754 {
28252e61
JL		 1755 int uu = 0;
1756 int m = 0;
1757 int i = 0;
1758 while (*s == ',' && i < 2)
252b5132 1759 {
28252e61
JL		 1760 s++;
1761 if (strncasecmp (s, "sm", 2) == 0)
1762 {
1763 uu = 1;
1764 m = 1;
1765 s++;
1766 i++;
1767 }
1768 else if (strncasecmp (s, "m", 1) == 0)
1769 m = 1;
1770 else if (strncasecmp (s, "s", 1) == 0)
1771 uu = 1;
0f4f8b56
JL		 1772 /* When in strict mode this is a match failure. */
1773 else if (strict)
1774 break;
28252e61
JL		 1775 else
1776 as_bad (_("Invalid Indexed Load Completer."));
252b5132
RH		 1777 s++;
1778 i++;
1779 }
28252e61
JL		 1780 if (i > 2)
1781 as_bad (_("Invalid Indexed Load Completer Syntax."));
1782 opcode |= m << 5;
1783 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
252b5132 1784 }
252b5132 1785
28252e61
JL		 1786 /* Handle a short load/store completer. */
1787 case 'm':
61dd1d31 1788 case 'q':
71823da4 1789 case 'J':
65fab780 1790 case 'c':
252b5132 1791 {
28252e61
JL		 1792 int a = 0;
1793 int m = 0;
1794 if (*s == ',')
252b5132 1795 {
28252e61
JL		 1796 s++;
1797 if (strncasecmp (s, "ma", 2) == 0)
1798 {
1799 a = 0;
1800 m = 1;
1801 }
1802 else if (strncasecmp (s, "mb", 2) == 0)
1803 {
1804 a = 1;
1805 m = 1;
1806 }
0f4f8b56
JL		 1807 /* When in strict mode this is a match failure. */
1808 else if (strict)
1809 break;
28252e61
JL		 1810 else
1811 as_bad (_("Invalid Short Load/Store Completer."));
1812 s += 2;
252b5132 1813 }
65fab780
JL		 1814 /* If we did not get a ma/mb completer, then we do not
1815 consider this a positive match for 'cc'. */
1816 else if (*args == 'c')
1817 break;
252b5132 1818
71823da4
JL		 1819 /* 'J', 'm' and 'q' are the same, except for where they
1820 encode the before/after field. */
61dd1d31
JL		 1821 if (*args == 'm')
1822 {
1823 opcode |= m << 5;
1824 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1825 }
1826 else if (*args == 'q')
1827 {
1828 opcode |= m << 3;
1829 INSERT_FIELD_AND_CONTINUE (opcode, a, 2);
1830 }
71823da4
JL		 1831 else if (*args == 'J')
1832 {
1833 /* M bit is explicit in the major opcode. */
1834 INSERT_FIELD_AND_CONTINUE (opcode, a, 2);
1835 }
65fab780
JL		 1836 else if (*args == 'c')
1837 {
1838 /* Gross! Hide these values in the immediate field
1839 of the instruction, then pull them out later. */
1840 opcode |= m << 8;
1841 opcode |= a << 9;
1842 continue;
1843 }
252b5132 1844 }
252b5132 1845
28252e61
JL		 1846 /* Handle a stbys completer. */
1847 case 's':
252b5132 1848 {
28252e61
JL		 1849 int a = 0;
1850 int m = 0;
1851 int i = 0;
1852 while (*s == ',' && i < 2)
1853 {
1854 s++;
1855 if (strncasecmp (s, "m", 1) == 0)
1856 m = 1;
1857 else if (strncasecmp (s, "b", 1) == 0)
1858 a = 0;
1859 else if (strncasecmp (s, "e", 1) == 0)
1860 a = 1;
0f4f8b56
JL		 1861 /* When in strict mode this is a match failure. */
1862 else if (strict)
1863 break;
28252e61
JL		 1864 else
1865 as_bad (_("Invalid Store Bytes Short Completer"));
1866 s++;
1867 i++;
1868 }
1869 if (i > 2)
252b5132 1870 as_bad (_("Invalid Store Bytes Short Completer"));
28252e61
JL		 1871 opcode |= m << 5;
1872 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
252b5132 1873 }
28252e61 1874
680ef6de
JL		 1875 /* Handle a local processor completer. */
1876 case 'L':
1877 if (strncasecmp (s, ",l", 2) != 0)
1878 break;
1879 s += 2;
1880 continue;
1881
1882 /* Handle a PROBE read/write completer. */
1883 case 'w':
1884 flag = 0;
1885 if (!strncasecmp (s, ",w", 2))
1886 {
1887 flag = 1;
1888 s += 2;
1889 }
1890 else if (!strncasecmp (s, ",r", 2))
1891 {
1892 flag = 0;
1893 s += 2;
1894 }
1895
1896 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
1897
1898 /* Handle MFCTL wide completer. */
1899 case 'W':
1900 if (strncasecmp (s, ",w", 2) != 0)
1901 break;
1902 s += 2;
1903 continue;
1904
1905 /* Handle an RFI restore completer. */
1906 case 'r':
1907 flag = 0;
1908 if (!strncasecmp (s, ",r", 2))
1909 {
1910 flag = 5;
1911 s += 2;
1912 }
1913
1914 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
1915
28252e61
JL		 1916 /* Handle a system control completer. */
1917 case 'Z':
1918 if (*s == ',' && (*(s + 1) == 'm' || *(s + 1) == 'M'))
1919 {
1920 flag = 1;
1921 s += 2;
1922 }
1923 else
1924 flag = 0;
1925
1926 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
1927
680ef6de
JL		 1928 /* Handle intermediate/final completer for DCOR. */
1929 case 'i':
1930 flag = 0;
1931 if (!strncasecmp (s, ",i", 2))
1932 {
1933 flag = 1;
1934 s += 2;
1935 }
1936
1937 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
1938
9e4f2d3a
JL		 1939 /* Handle zero/sign extension completer. */
1940 case 'z':
1941 flag = 1;
1942 if (!strncasecmp (s, ",z", 2))
1943 {
1944 flag = 0;
1945 s += 2;
1946 }
1947
1948 INSERT_FIELD_AND_CONTINUE (opcode, flag, 10);
1949
680ef6de
JL		 1950 /* Handle add completer. */
1951 case 'a':
1952 flag = 1;
1953 if (!strncasecmp (s, ",l", 2))
1954 {
1955 flag = 2;
1956 s += 2;
1957 }
1958 else if (!strncasecmp (s, ",tsv", 4))
1959 {
1960 flag = 3;
1961 s += 4;
1962 }
1963
1964 INSERT_FIELD_AND_CONTINUE (opcode, flag, 10);
1965
1966 /* Handle 64 bit carry for ADD. */
1967 case 'Y':
1968 flag = 0;
1969 if (!strncasecmp (s, ",dc,tsv", 7) ||
1970 !strncasecmp (s, ",tsv,dc", 7))
1971 {
1972 flag = 1;
1973 s += 7;
1974 }
1975 else if (!strncasecmp (s, ",dc", 3))
1976 {
1977 flag = 0;
1978 s += 3;
1979 }
1980 else
1981 break;
1982
1983 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
1984
1985 /* Handle 32 bit carry for ADD. */
1986 case 'y':
1987 flag = 0;
1988 if (!strncasecmp (s, ",c,tsv", 6) ||
1989 !strncasecmp (s, ",tsv,c", 6))
1990 {
1991 flag = 1;
1992 s += 6;
1993 }
1994 else if (!strncasecmp (s, ",c", 2))
1995 {
1996 flag = 0;
1997 s += 2;
1998 }
1999 else
2000 break;
2001
2002 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2003
2004 /* Handle trap on signed overflow. */
2005 case 'v':
2006 flag = 0;
2007 if (!strncasecmp (s, ",tsv", 4))
2008 {
2009 flag = 1;
2010 s += 4;
2011 }
2012
2013 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2014
2015 /* Handle trap on condition and overflow. */
2016 case 't':
2017 flag = 0;
2018 if (!strncasecmp (s, ",tc,tsv", 7) ||
2019 !strncasecmp (s, ",tsv,tc", 7))
2020 {
2021 flag = 1;
2022 s += 7;
2023 }
2024 else if (!strncasecmp (s, ",tc", 3))
2025 {
2026 flag = 0;
2027 s += 3;
2028 }
2029 else
2030 break;
2031
2032 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2033
2034 /* Handle 64 bit borrow for SUB. */
2035 case 'B':
2036 flag = 0;
2037 if (!strncasecmp (s, ",db,tsv", 7) ||
2038 !strncasecmp (s, ",tsv,db", 7))
2039 {
2040 flag = 1;
2041 s += 7;
2042 }
2043 else if (!strncasecmp (s, ",db", 3))
2044 {
2045 flag = 0;
2046 s += 3;
2047 }
2048 else
2049 break;
2050
2051 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2052
2053 /* Handle 32 bit borrow for SUB. */
2054 case 'b':
2055 flag = 0;
2056 if (!strncasecmp (s, ",b,tsv", 6) ||
2057 !strncasecmp (s, ",tsv,b", 6))
2058 {
2059 flag = 1;
2060 s += 6;
2061 }
2062 else if (!strncasecmp (s, ",b", 2))
2063 {
2064 flag = 0;
2065 s += 2;
2066 }
2067 else
2068 break;
2069
2070 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
2071
2072 /* Handle trap condition completer for UADDCM. */
2073 case 'T':
2074 flag = 0;
2075 if (!strncasecmp (s, ",tc", 3))
2076 {
2077 flag = 1;
2078 s += 3;
2079 }
2080
2081 INSERT_FIELD_AND_CONTINUE (opcode, flag, 6);
2082
413c94ba
JL		 2083 /* Handle signed/unsigned at 21. */
2084 case 'S':
2085 {
2086 int sign = 1;
2087 if (strncasecmp (s, ",s", 2) == 0)
2088 {
2089 sign = 1;
2090 s += 2;
2091 }
2092 else if (strncasecmp (s, ",u", 2) == 0)
2093 {
2094 sign = 0;
2095 s += 2;
2096 }
2097
2098 INSERT_FIELD_AND_CONTINUE (opcode, sign, 10);
2099 }
2100
2101 /* Handle left/right combination at 17:18. */
2102 case 'h':
2103 if (*s++ == ',')
2104 {
2105 int lr = 0;
2106 if (*s == 'r')
2107 lr = 2;
2108 else if (*s == 'l')
2109 lr = 0;
2110 else
2111 as_bad(_("Invalid left/right combination completer"));
2112
2113 s++;
2114 INSERT_FIELD_AND_CONTINUE (opcode, lr, 13);
2115 }
2116 else
2117 as_bad(_("Invalid left/right combination completer"));
2118 break;
2119
2120 /* Handle saturation at 24:25. */
2121 case 'H':
2122 {
2123 int sat = 3;
2124 if (strncasecmp (s, ",ss", 3) == 0)
2125 {
2126 sat = 1;
2127 s += 3;
2128 }
2129 else if (strncasecmp (s, ",us", 3) == 0)
2130 {
2131 sat = 0;
2132 s += 3;
2133 }
2134
2135 INSERT_FIELD_AND_CONTINUE (opcode, sat, 6);
2136 }
2137
2138 /* Handle permutation completer. */
2139 case '*':
2140 if (*s++ == ',')
2141 {
b1039fc4 2142 int permloc[4];
413c94ba
JL		 2143 int perm = 0;
2144 int i = 0;
b1039fc4
JL		 2145 permloc[0] = 13;
2146 permloc[1] = 10;
2147 permloc[2] = 8;
2148 permloc[3] = 6;
413c94ba
JL		 2149 for (; i < 4; i++)
2150 {
2151 switch (*s++)
2152 {
2153 case '0':
2154 perm = 0;
2155 break;
2156 case '1':
2157 perm = 1;
2158 break;
2159 case '2':
2160 perm = 2;
2161 break;
2162 case '3':
2163 perm = 3;
2164 break;
2165 default:
2166 as_bad(_("Invalid permutation completer"));
2167 }
2168 opcode |= perm << permloc[i];
2169 }
2170 continue;
2171 }
2172 else
2173 as_bad(_("Invalid permutation completer"));
2174 break;
2175
28252e61
JL		 2176 default:
2177 abort ();
2178 }
2179 break;
252b5132 2180
55a914bc 2181 /* Handle all conditions. */
252b5132 2182 case '?':
55a914bc
JL		 2183 {
2184 args++;
2185 switch (*args)
2186 {
2187 /* Handle FP compare conditions. */
2188 case 'f':
2189 cond = pa_parse_fp_cmp_cond (&s);
2190 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
2191
2192 /* Handle an add condition. */
9a913dfb 2193 case 'A':
55a914bc
JL		 2194 case 'a':
2195 cmpltr = 0;
2196 flag = 0;
2197 if (*s == ',')
2198 {
2199 s++;
9a913dfb
JL		 2200
2201 /* 64 bit conditions. */
2202 if (*args == 'A')
2203 {
2204 if (*s == '*')
2205 s++;
2206 else
2207 break;
2208 }
17d9105c
JL		 2209 else if (*s == '*')
2210 break;
55a914bc 2211 name = s;
9a913dfb 2212
680ef6de 2213 name = s;
55a914bc
JL		 2214 while (*s != ',' && *s != ' ' && *s != '\t')
2215 s += 1;
2216 c = *s;
2217 *s = 0x00;
2218 if (strcmp (name, "=") == 0)
2219 cmpltr = 1;
2220 else if (strcmp (name, "<") == 0)
2221 cmpltr = 2;
2222 else if (strcmp (name, "<=") == 0)
2223 cmpltr = 3;
2224 else if (strcasecmp (name, "nuv") == 0)
2225 cmpltr = 4;
2226 else if (strcasecmp (name, "znv") == 0)
2227 cmpltr = 5;
2228 else if (strcasecmp (name, "sv") == 0)
2229 cmpltr = 6;
2230 else if (strcasecmp (name, "od") == 0)
2231 cmpltr = 7;
2232 else if (strcasecmp (name, "tr") == 0)
2233 {
2234 cmpltr = 0;
2235 flag = 1;
2236 }
2237 else if (strcmp (name, "<>") == 0)
2238 {
2239 cmpltr = 1;
2240 flag = 1;
2241 }
2242 else if (strcmp (name, ">=") == 0)
2243 {
2244 cmpltr = 2;
2245 flag = 1;
2246 }
2247 else if (strcmp (name, ">") == 0)
2248 {
2249 cmpltr = 3;
2250 flag = 1;
2251 }
2252 else if (strcasecmp (name, "uv") == 0)
2253 {
2254 cmpltr = 4;
2255 flag = 1;
2256 }
2257 else if (strcasecmp (name, "vnz") == 0)
2258 {
2259 cmpltr = 5;
2260 flag = 1;
2261 }
2262 else if (strcasecmp (name, "nsv") == 0)
2263 {
2264 cmpltr = 6;
2265 flag = 1;
2266 }
2267 else if (strcasecmp (name, "ev") == 0)
2268 {
2269 cmpltr = 7;
2270 flag = 1;
2271 }
9a913dfb
JL		 2272 /* ",*" is a valid condition. */
2273 else if (*args == 'a')
55a914bc
JL		 2274 as_bad (_("Invalid Add Condition: %s"), name);
2275 *s = c;
2276 }
2277 opcode |= cmpltr << 13;
2278 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2279
55a914bc
JL		 2280 /* Handle non-negated add and branch condition. */
2281 case 'd':
2282 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
2283 if (cmpltr < 0)
2284 {
2285 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2286 cmpltr = 0;
2287 }
2288 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2289
9a913dfb
JL		 2290 /* Handle negated add and branch condition. */
2291 case 'D':
2292 abort ();
2293
2294 /* Handle wide-mode non-negated add and branch condition. */
2295 case 'w':
2296 abort ();
2297
2298 /* Handle wide-mode negated add and branch condition. */
2299 case 'W':
2300 abort();
2301
55a914bc
JL		 2302 /* Handle a negated or non-negated add and branch
2303 condition. */
2304 case '@':
2305 save_s = s;
2306 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
2307 if (cmpltr < 0)
2308 {
2309 s = save_s;
2310 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
2311 if (cmpltr < 0)
2312 {
2313 as_bad (_("Invalid Compare/Subtract Condition"));
2314 cmpltr = 0;
2315 }
2316 else
2317 {
2318 /* Negated condition requires an opcode change. */
2319 opcode |= 1 << 27;
2320 }
2321 }
2322 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
252b5132 2323
55a914bc 2324 /* Handle branch on bit conditions. */
9a913dfb 2325 case 'B':
55a914bc
JL		 2326 case 'b':
2327 cmpltr = 0;
2328 if (*s == ',')
2329 {
2330 s++;
9a913dfb
JL		 2331
2332 if (*args == 'B')
2333 {
2334 if (*s == '*')
2335 s++;
2336 else
2337 break;
2338 }
17d9105c
JL		 2339 else if (*s == '*')
2340 break;
9a913dfb 2341
55a914bc
JL		 2342 if (strncmp (s, "<", 1) == 0)
2343 {
2344 cmpltr = 0;
2345 s++;
2346 }
2347 else if (strncmp (s, ">=", 2) == 0)
2348 {
2349 cmpltr = 1;
2350 s += 2;
2351 }
2352 else
2353 as_bad (_("Invalid Bit Branch Condition: %c"), *s);
2354 }
2355 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 15);
252b5132 2356
55a914bc 2357 /* Handle a compare/subtract condition. */
9a913dfb 2358 case 'S':
55a914bc
JL		 2359 case 's':
2360 cmpltr = 0;
2361 flag = 0;
2362 if (*s == ',')
2363 {
2364 s++;
9a913dfb
JL		 2365
2366 /* 64 bit conditions. */
2367 if (*args == 'S')
2368 {
2369 if (*s == '*')
2370 s++;
2371 else
2372 break;
2373 }
17d9105c
JL		 2374 else if (*s == '*')
2375 break;
55a914bc 2376 name = s;
9a913dfb 2377
680ef6de 2378 name = s;
55a914bc
JL		 2379 while (*s != ',' && *s != ' ' && *s != '\t')
2380 s += 1;
2381 c = *s;
2382 *s = 0x00;
2383 if (strcmp (name, "=") == 0)
2384 cmpltr = 1;
2385 else if (strcmp (name, "<") == 0)
2386 cmpltr = 2;
2387 else if (strcmp (name, "<=") == 0)
2388 cmpltr = 3;
2389 else if (strcasecmp (name, "<<") == 0)
2390 cmpltr = 4;
2391 else if (strcasecmp (name, "<<=") == 0)
2392 cmpltr = 5;
2393 else if (strcasecmp (name, "sv") == 0)
2394 cmpltr = 6;
2395 else if (strcasecmp (name, "od") == 0)
2396 cmpltr = 7;
2397 else if (strcasecmp (name, "tr") == 0)
2398 {
2399 cmpltr = 0;
2400 flag = 1;
2401 }
2402 else if (strcmp (name, "<>") == 0)
2403 {
2404 cmpltr = 1;
2405 flag = 1;
2406 }
2407 else if (strcmp (name, ">=") == 0)
2408 {
2409 cmpltr = 2;
2410 flag = 1;
2411 }
2412 else if (strcmp (name, ">") == 0)
2413 {
2414 cmpltr = 3;
2415 flag = 1;
2416 }
2417 else if (strcasecmp (name, ">>=") == 0)
2418 {
2419 cmpltr = 4;
2420 flag = 1;
2421 }
2422 else if (strcasecmp (name, ">>") == 0)
2423 {
2424 cmpltr = 5;
2425 flag = 1;
2426 }
2427 else if (strcasecmp (name, "nsv") == 0)
2428 {
2429 cmpltr = 6;
2430 flag = 1;
2431 }
2432 else if (strcasecmp (name, "ev") == 0)
2433 {
2434 cmpltr = 7;
2435 flag = 1;
2436 }
9a913dfb
JL		 2437 /* ",*" is a valid condition. */
2438 else if (*args != 'S')
55a914bc
JL		 2439 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2440 name);
2441 *s = c;
2442 }
2443 opcode |= cmpltr << 13;
2444 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2445
55a914bc
JL		 2446 /* Handle a non-negated compare condition. */
2447 case 't':
2448 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2449 if (cmpltr < 0)
2450 {
2451 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2452 cmpltr = 0;
2453 }
2454 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
9a913dfb
JL		 2455
2456 /* Handle a negated compare condition. */
2457 case 'T':
2458 abort ();
2459
2460 /* Handle a 64 bit non-negated compare condition. */
2461 case 'r':
2462 abort ();
2463
2464 /* Handle a 64 bit negated compare condition. */
2465 case 'R':
2466 abort ();
2467
2468 /* Handle a 64 bit cmpib condition. */
2469 case 'Q':
2470 abort ();
55a914bc
JL		 2471
2472 /* Handle a negated or non-negated compare/subtract
2473 condition. */
2474 case 'n':
2475 save_s = s;
2476 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2477 if (cmpltr < 0)
2478 {
2479 s = save_s;
2480 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
2481 if (cmpltr < 0)
2482 {
2483 as_bad (_("Invalid Compare/Subtract Condition."));
2484 cmpltr = 0;
2485 }
2486 else
2487 {
2488 /* Negated condition requires an opcode change. */
2489 opcode |= 1 << 27;
2490 }
2491 }
2492
2493 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2494
2495 /* Handle a logical instruction condition. */
9a913dfb 2496 case 'L':
55a914bc
JL		 2497 case 'l':
2498 cmpltr = 0;
2499 flag = 0;
2500 if (*s == ',')
2501 {
2502 s++;
9a913dfb
JL		 2503
2504 /* 64 bit conditions. */
2505 if (*args == 'L')
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
2522
2523 if (strcmp (name, "=") == 0)
2524 cmpltr = 1;
2525 else if (strcmp (name, "<") == 0)
2526 cmpltr = 2;
2527 else if (strcmp (name, "<=") == 0)
2528 cmpltr = 3;
2529 else if (strcasecmp (name, "od") == 0)
2530 cmpltr = 7;
2531 else if (strcasecmp (name, "tr") == 0)
2532 {
2533 cmpltr = 0;
2534 flag = 1;
2535 }
2536 else if (strcmp (name, "<>") == 0)
2537 {
2538 cmpltr = 1;
2539 flag = 1;
2540 }
2541 else if (strcmp (name, ">=") == 0)
2542 {
2543 cmpltr = 2;
2544 flag = 1;
2545 }
2546 else if (strcmp (name, ">") == 0)
2547 {
2548 cmpltr = 3;
2549 flag = 1;
2550 }
2551 else if (strcasecmp (name, "ev") == 0)
2552 {
2553 cmpltr = 7;
2554 flag = 1;
2555 }
9a913dfb
JL		 2556 /* ",*" is a valid condition. */
2557 else if (*args != 'L')
55a914bc
JL		 2558 as_bad (_("Invalid Logical Instruction Condition."));
2559 *s = c;
2560 }
2561 opcode |= cmpltr << 13;
2562 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
2563
2564 /* Handle a shift/extract/deposit condition. */
9a913dfb 2565 case 'X':
55a914bc
JL		 2566 case 'x':
2567 case 'y':
2568 cmpltr = 0;
2569 if (*s == ',')
2570 {
2571 save_s = s++;
2572
9a913dfb
JL		 2573 /* 64 bit conditions. */
2574 if (*args == 'X')
2575 {
2576 if (*s == '*')
2577 s++;
2578 else
2579 break;
2580 }
17d9105c
JL		 2581 else if (*s == '*')
2582 break;
55a914bc 2583 name = s;
9a913dfb 2584
680ef6de 2585 name = s;
55a914bc
JL		 2586 while (*s != ',' && *s != ' ' && *s != '\t')
2587 s += 1;
2588 c = *s;
2589 *s = 0x00;
2590 if (strcmp (name, "=") == 0)
2591 cmpltr = 1;
2592 else if (strcmp (name, "<") == 0)
2593 cmpltr = 2;
2594 else if (strcasecmp (name, "od") == 0)
2595 cmpltr = 3;
2596 else if (strcasecmp (name, "tr") == 0)
2597 cmpltr = 4;
2598 else if (strcmp (name, "<>") == 0)
2599 cmpltr = 5;
2600 else if (strcmp (name, ">=") == 0)
2601 cmpltr = 6;
2602 else if (strcasecmp (name, "ev") == 0)
2603 cmpltr = 7;
2604 /* Handle movb,n. Put things back the way they were.
2605 This includes moving s back to where it started. */
2606 else if (strcasecmp (name, "n") == 0 && *args == 'y')
2607 {
2608 *s = c;
2609 s = save_s;
2610 continue;
2611 }
9a913dfb
JL		 2612 /* ",*" is a valid condition. */
2613 else if (*args != 'X')
55a914bc
JL		 2614 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2615 *s = c;
2616 }
2617 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
252b5132 2618
55a914bc 2619 /* Handle a unit instruction condition. */
9a913dfb
JL		 2620 case 'U':
2621 case 'u':
55a914bc
JL		 2622 cmpltr = 0;
2623 flag = 0;
2624 if (*s == ',')
2625 {
2626 s++;
2627
9a913dfb
JL		 2628 /* 64 bit conditions. */
2629 if (*args == 'U')
2630 {
2631 if (*s == '*')
2632 s++;
2633 else
2634 break;
2635 }
17d9105c
JL		 2636 else if (*s == '*')
2637 break;
9a913dfb 2638
55a914bc
JL		 2639 if (strncasecmp (s, "sbz", 3) == 0)
2640 {
2641 cmpltr = 2;
2642 s += 3;
2643 }
2644 else if (strncasecmp (s, "shz", 3) == 0)
2645 {
2646 cmpltr = 3;
2647 s += 3;
2648 }
2649 else if (strncasecmp (s, "sdc", 3) == 0)
2650 {
2651 cmpltr = 4;
2652 s += 3;
2653 }
2654 else if (strncasecmp (s, "sbc", 3) == 0)
2655 {
2656 cmpltr = 6;
2657 s += 3;
2658 }
2659 else if (strncasecmp (s, "shc", 3) == 0)
2660 {
2661 cmpltr = 7;
2662 s += 3;
2663 }
2664 else if (strncasecmp (s, "tr", 2) == 0)
2665 {
2666 cmpltr = 0;
2667 flag = 1;
2668 s += 2;
2669 }
2670 else if (strncasecmp (s, "nbz", 3) == 0)
2671 {
2672 cmpltr = 2;
2673 flag = 1;
2674 s += 3;
2675 }
2676 else if (strncasecmp (s, "nhz", 3) == 0)
2677 {
2678 cmpltr = 3;
2679 flag = 1;
2680 s += 3;
2681 }
2682 else if (strncasecmp (s, "ndc", 3) == 0)
2683 {
2684 cmpltr = 4;
2685 flag = 1;
2686 s += 3;
2687 }
2688 else if (strncasecmp (s, "nbc", 3) == 0)
2689 {
2690 cmpltr = 6;
2691 flag = 1;
2692 s += 3;
2693 }
2694 else if (strncasecmp (s, "nhc", 3) == 0)
2695 {
2696 cmpltr = 7;
2697 flag = 1;
2698 s += 3;
2699 }
9a913dfb
JL		 2700 /* ",*" is a valid condition. */
2701 else if (*args != 'U')
55a914bc
JL		 2702 as_bad (_("Invalid Unit Instruction Condition."));
2703 }
2704 opcode |= cmpltr << 13;
2705 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2706
55a914bc
JL		 2707 default:
2708 abort ();
2709 }
0741736b 2710 break;
55a914bc 2711 }
252b5132 2712
252b5132
RH		 2713 /* Handle a nullification completer for branch instructions. */
2714 case 'n':
2715 nullif = pa_parse_nullif (&s);
2716 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
2717
2718 /* Handle a nullification completer for copr and spop insns. */
2719 case 'N':
2720 nullif = pa_parse_nullif (&s);
2721 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2722
6be78360
JL		 2723 /* Handle ,gate completer for new syntax branches. */
2724 case 'g':
54af6ff6 2725 if (*s == ',' && strncasecmp (s + 1, "gate", 4) == 0)
6be78360
JL		 2726 s += 5;
2727 else
2728 break;
2729 continue;
252b5132 2730
3db6e6bd
JL		 2731 /* Handle ,l completer for new syntax branches. */
2732 case 'l':
54af6ff6 2733 if (*s == ',' && strncasecmp (s + 1, "l", 1) == 0)
3db6e6bd
JL		 2734 s += 2;
2735 else
2736 break;
2737 continue;
2738
dbe2f9ee
JL		 2739 /* Handle ,push completer for new syntax branches. */
2740 case 'M':
54af6ff6 2741 if (*s == ',' && strncasecmp (s + 1, "push", 4) == 0)
dbe2f9ee
JL		 2742 s += 5;
2743 else
2744 break;
2745 continue;
2746
629d9417
JL		 2747 /* Handle ,pop completer for new syntax branches. */
2748 case 'B':
54af6ff6 2749 if (*s == ',' && strncasecmp (s + 1, "pop", 3) == 0)
629d9417
JL		 2750 s += 4;
2751 else
2752 break;
2753 continue;
2754
dbe2f9ee
JL		 2755 /* Handle ,%r2 completer for new syntax branches. */
2756 case 'L':
54af6ff6 2757 if (*s == ',' && strncasecmp (s + 1, "%r2", 3) == 0)
dbe2f9ee 2758 s += 4;
54af6ff6 2759 else if (*s == ',' && strncasecmp (s + 1, "%rp", 3) == 0)
dbe2f9ee
JL		 2760 s += 4;
2761 else
2762 break;
2763 continue;
2764
1cf6ae67
JL		 2765 /* Handle 3 bit entry into the fp compare array. Valid values
2766 are 0..6 inclusive. */
2767 case 'h':
2768 get_expression (s);
2769 s = expr_end;
2770 if (the_insn.exp.X_op == O_constant)
2771 {
2772 num = evaluate_absolute (&the_insn);
2773 CHECK_FIELD (num, 6, 0, 0);
2774 num++;
2775 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
2776 }
2777 else
2778 break;
2779
2780 /* Handle 3 bit entry into the fp compare array. Valid values
2781 are 0..6 inclusive. */
2782 case 'm':
2783 get_expression (s);
1cf6ae67
JL		 2784 if (the_insn.exp.X_op == O_constant)
2785 {
b1039fc4 2786 s = expr_end;
1cf6ae67
JL		 2787 num = evaluate_absolute (&the_insn);
2788 CHECK_FIELD (num, 6, 0, 0);
2789 num = (num + 1) ^ 1;
2790 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
2791 }
2792 else
b1039fc4 2793 break;
1cf6ae67
JL		 2794
2795 /* Handle graphics test completers for ftest */
2796 case '=':
2797 {
2798 num = pa_parse_ftest_gfx_completer (&s);
2799 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2800 }
2801
252b5132
RH		 2802 /* Handle a 11 bit immediate at 31. */
2803 case 'i':
2804 the_insn.field_selector = pa_chk_field_selector (&s);
2805 get_expression (s);
2806 s = expr_end;
2807 if (the_insn.exp.X_op == O_constant)
2808 {
2809 num = evaluate_absolute (&the_insn);
2810 CHECK_FIELD (num, 1023, -1024, 0);
2811 low_sign_unext (num, 11, &num);
2812 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2813 }
2814 else
2815 {
2816 if (is_DP_relative (the_insn.exp))
2817 the_insn.reloc = R_HPPA_GOTOFF;
2818 else if (is_PC_relative (the_insn.exp))
2819 the_insn.reloc = R_HPPA_PCREL_CALL;
2820 else
2821 the_insn.reloc = R_HPPA;
2822 the_insn.format = 11;
2823 continue;
2824 }
2825
65fab780
JL		 2826 /* Handle a 14 bit immediate at 31. */
2827 case 'J':
2828 the_insn.field_selector = pa_chk_field_selector (&s);
2829 get_expression (s);
2830 s = expr_end;
2831 if (the_insn.exp.X_op == O_constant)
2832 {
2833 int a, m;
2834
2835 /* XXX the completer stored away tibits of information
2836 for us to extract. We need a cleaner way to do this.
2837 Now that we have lots of letters again, it would be
2838 good to rethink this. */
2839 m = (opcode & (1 << 8)) != 0;
2840 a = (opcode & (1 << 9)) != 0;
2841 opcode &= ~ (3 << 8);
2842 num = evaluate_absolute (&the_insn);
2843 if (a == 1 && num >= 0 || (a == 0 && num < 0))
2844 break;
2845 CHECK_FIELD (num, 8191, -8192, 0);
2846 low_sign_unext (num, 14, &num);
2847 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2848 }
2849 else
2850 {
2851 break;
2852 }
2853
2854 /* Handle a 14 bit immediate at 31. */
2855 case 'K':
2856 the_insn.field_selector = pa_chk_field_selector (&s);
2857 get_expression (s);
2858 s = expr_end;
2859 if (the_insn.exp.X_op == O_constant)
2860 {
2861 int a, m;
2862
2863 /* XXX the completer stored away tibits of information
2864 for us to extract. We need a cleaner way to do this.
2865 Now that we have lots of letters again, it would be
2866 good to rethink this. */
2867 m = (opcode & (1 << 8)) != 0;
2868 a = (opcode & (1 << 9)) != 0;
2869 opcode &= ~ (3 << 8);
2870 num = evaluate_absolute (&the_insn);
2871 if (a == 1 && num < 0 || (a == 0 && num > 0))
2872 break;
2873 if (num % 4)
2874 break;
2875 CHECK_FIELD (num, 8191, -8192, 0);
2876 if (num < 0)
2877 opcode |= 1;
2878 num &= 0x1fff;
2879 num >>= 2;
2880 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
2881 }
2882 else
2883 {
2884 break;
2885 }
2886
61dd1d31
JL		 2887 /* Handle 14 bit immediated, shifted left three times. */
2888 case '#':
2889 the_insn.field_selector = pa_chk_field_selector (&s);
2890 get_expression (s);
2891 s = expr_end;
2892 if (the_insn.exp.X_op == O_constant)
2893 {
2894 num = evaluate_absolute (&the_insn);
2895 if (num & 0x7)
2896 break;
2897 CHECK_FIELD (num, 8191, -8192, 0);
2898 if (num < 0)
2899 opcode |= 1;
2900 num &= 0x1fff;
2901 num >>= 3;
2902 INSERT_FIELD_AND_CONTINUE (opcode, num, 4);
2903 }
2904 else
2905 {
2906 if (is_DP_relative (the_insn.exp))
2907 the_insn.reloc = R_HPPA_GOTOFF;
2908 else if (is_PC_relative (the_insn.exp))
2909 the_insn.reloc = R_HPPA_PCREL_CALL;
2910 else
2911 the_insn.reloc = R_HPPA;
2912 the_insn.format = 14;
2913 continue;
2914 }
2915 break;
2916
2917 /* Handle 14 bit immediate, shifted left twice. */
2918 case 'd':
2919 the_insn.field_selector = pa_chk_field_selector (&s);
2920 get_expression (s);
2921 s = expr_end;
2922 if (the_insn.exp.X_op == O_constant)
2923 {
2924 num = evaluate_absolute (&the_insn);
2925 if (num & 0x3)
2926 break;
2927 CHECK_FIELD (num, 8191, -8192, 0);
2928 if (num < 0)
2929 opcode |= 1;
2930 num &= 0x1fff;
2931 num >>= 2;
2932 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
2933 }
2934 else
2935 {
2936 if (is_DP_relative (the_insn.exp))
2937 the_insn.reloc = R_HPPA_GOTOFF;
2938 else if (is_PC_relative (the_insn.exp))
2939 the_insn.reloc = R_HPPA_PCREL_CALL;
2940 else
2941 the_insn.reloc = R_HPPA;
2942 the_insn.format = 14;
2943 continue;
2944 }
252b5132
RH		 2945
2946 /* Handle a 14 bit immediate at 31. */
2947 case 'j':
2948 the_insn.field_selector = pa_chk_field_selector (&s);
2949 get_expression (s);
2950 s = expr_end;
2951 if (the_insn.exp.X_op == O_constant)
2952 {
2953 num = evaluate_absolute (&the_insn);
2954 CHECK_FIELD (num, 8191, -8192, 0);
2955 low_sign_unext (num, 14, &num);
2956 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2957 }
2958 else
2959 {
2960 if (is_DP_relative (the_insn.exp))
2961 the_insn.reloc = R_HPPA_GOTOFF;
2962 else if (is_PC_relative (the_insn.exp))
2963 the_insn.reloc = R_HPPA_PCREL_CALL;
2964 else
2965 the_insn.reloc = R_HPPA;
2966 the_insn.format = 14;
2967 continue;
2968 }
2969
2970 /* Handle a 21 bit immediate at 31. */
2971 case 'k':
2972 the_insn.field_selector = pa_chk_field_selector (&s);
2973 get_expression (s);
2974 s = expr_end;
2975 if (the_insn.exp.X_op == O_constant)
2976 {
2977 num = evaluate_absolute (&the_insn);
2978 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
2979 dis_assemble_21 (num, &num);
2980 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2981 }
2982 else
2983 {
2984 if (is_DP_relative (the_insn.exp))
2985 the_insn.reloc = R_HPPA_GOTOFF;
2986 else if (is_PC_relative (the_insn.exp))
2987 the_insn.reloc = R_HPPA_PCREL_CALL;
2988 else
2989 the_insn.reloc = R_HPPA;
2990 the_insn.format = 21;
2991 continue;
2992 }
2993
2994 /* Handle a 12 bit branch displacement. */
2995 case 'w':
2996 the_insn.field_selector = pa_chk_field_selector (&s);
2997 get_expression (s);
2998 s = expr_end;
2999 the_insn.pcrel = 1;
3000 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
3001 {
3002 unsigned int w1, w, result;
3003
3004 num = evaluate_absolute (&the_insn);
3005 if (num % 4)
3006 {
3007 as_bad (_("Branch to unaligned address"));
3008 break;
3009 }
3010 CHECK_FIELD (num, 8199, -8184, 0);
3011 sign_unext ((num - 8) >> 2, 12, &result);
3012 dis_assemble_12 (result, &w1, &w);
3013 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
3014 }
3015 else
3016 {
3017 the_insn.reloc = R_HPPA_PCREL_CALL;
3018 the_insn.format = 12;
3019 the_insn.arg_reloc = last_call_desc.arg_reloc;
3020 memset (&last_call_desc, 0, sizeof (struct call_desc));
3021 s = expr_end;
3022 continue;
3023 }
3024
3025 /* Handle a 17 bit branch displacement. */
3026 case 'W':
3027 the_insn.field_selector = pa_chk_field_selector (&s);
3028 get_expression (s);
3029 s = expr_end;
3030 the_insn.pcrel = 1;
3031 if (!the_insn.exp.X_add_symbol
3032 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3033 "L$0\001"))
3034 {
3035 unsigned int w2, w1, w, result;
3036
3037 num = evaluate_absolute (&the_insn);
3038 if (num % 4)
3039 {
3040 as_bad (_("Branch to unaligned address"));
3041 break;
3042 }
3043 CHECK_FIELD (num, 262143, -262144, 0);
3044
3045 if (the_insn.exp.X_add_symbol)
3046 num -= 8;
3047
3048 sign_unext (num >> 2, 17, &result);
3049 dis_assemble_17 (result, &w1, &w2, &w);
3050 INSERT_FIELD_AND_CONTINUE (opcode,
3051 ((w2 << 2) | (w1 << 16) | w), 0);
3052 }
3053 else
3054 {
3055 the_insn.reloc = R_HPPA_PCREL_CALL;
3056 the_insn.format = 17;
3057 the_insn.arg_reloc = last_call_desc.arg_reloc;
3058 memset (&last_call_desc, 0, sizeof (struct call_desc));
3059 continue;
3060 }
3061
77c02e18
JL		 3062 /* Handle a 22 bit branch displacement. */
3063 case 'X':
3064 the_insn.field_selector = pa_chk_field_selector (&s);
3065 get_expression (s);
3066 s = expr_end;
3067 the_insn.pcrel = 1;
3068 if (!the_insn.exp.X_add_symbol
3069 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3070 "L$0\001"))
3071 {
3072 unsigned int w3, w2, w1, w, result;
3073
3074 num = evaluate_absolute (&the_insn);
3075 if (num % 4)
3076 {
3077 as_bad (_("Branch to unaligned address"));
3078 break;
3079 }
3080 CHECK_FIELD (num, 8388607, -8388608, 0);
3081
3082 if (the_insn.exp.X_add_symbol)
3083 num -= 8;
3084
3085 sign_unext (num >> 2, 22, &result);
3086 dis_assemble_22 (result, &w3, &w1, &w2, &w);
3087 INSERT_FIELD_AND_CONTINUE (opcode,
3088 ((w3 << 21) | (w2 << 2)
3089 | (w1 << 16) | w),
3090 0);
3091 }
3092 else
3093 {
3094 the_insn.reloc = R_HPPA_PCREL_CALL;
3095 the_insn.format = 22;
3096 the_insn.arg_reloc = last_call_desc.arg_reloc;
3097 memset (&last_call_desc, 0, sizeof (struct call_desc));
3098 continue;
3099 }
3100
252b5132
RH		 3101 /* Handle an absolute 17 bit branch target. */
3102 case 'z':
3103 the_insn.field_selector = pa_chk_field_selector (&s);
3104 get_expression (s);
3105 s = expr_end;
3106 the_insn.pcrel = 0;
3107 if (!the_insn.exp.X_add_symbol
3108 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3109 "L$0\001"))
3110 {
3111 unsigned int w2, w1, w, result;
3112
3113 num = evaluate_absolute (&the_insn);
3114 if (num % 4)
3115 {
3116 as_bad (_("Branch to unaligned address"));
3117 break;
3118 }
3119 CHECK_FIELD (num, 262143, -262144, 0);
3120
3121 if (the_insn.exp.X_add_symbol)
3122 num -= 8;
3123
3124 sign_unext (num >> 2, 17, &result);
3125 dis_assemble_17 (result, &w1, &w2, &w);
3126 INSERT_FIELD_AND_CONTINUE (opcode,
3127 ((w2 << 2) | (w1 << 16) | w), 0);
3128 }
3129 else
3130 {
3131 the_insn.reloc = R_HPPA_ABS_CALL;
3132 the_insn.format = 17;
3133 the_insn.arg_reloc = last_call_desc.arg_reloc;
3134 memset (&last_call_desc, 0, sizeof (struct call_desc));
3135 continue;
3136 }
3137
4964086a
JL		 3138 /* Handle '%r1' implicit operand of addil instruction. */
3139 case 'Z':
3140 if (*s == ',' && *(s + 1) == '%' && *(s + 3) == '1'
3141 && (*(s + 2) == 'r' || *(s + 2) == 'R'))
3142 {
3143 s += 4;
3144 continue;
3145 }
3146 else
3147 break;
3148
a97685e9
JL		 3149 /* Handle a 2 bit shift count at 25. */
3150 case '.':
3151 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3152 if (strict && the_insn.exp.X_op != O_constant)
3153 break;
a97685e9 3154 s = expr_end;
0f4f8b56 3155 CHECK_FIELD (num, 3, 1, strict);
a97685e9
JL		 3156 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3157
413c94ba
JL		 3158 /* Handle a 4 bit shift count at 25. */
3159 case '*':
3160 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3161 if (strict && the_insn.exp.X_op != O_constant)
3162 break;
413c94ba 3163 s = expr_end;
0f4f8b56 3164 CHECK_FIELD (num, 15, 0, strict);
413c94ba
JL		 3165 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3166
252b5132
RH		 3167 /* Handle a 5 bit shift count at 26. */
3168 case 'p':
3169 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3170 if (strict && the_insn.exp.X_op != O_constant)
3171 break;
252b5132 3172 s = expr_end;
0f4f8b56 3173 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 3174 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
3175
a97685e9
JL		 3176 /* Handle a 6 bit shift count at 20,22:26. */
3177 case '~':
3178 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3179 if (strict && the_insn.exp.X_op != O_constant)
3180 break;
a97685e9 3181 s = expr_end;
0f4f8b56 3182 CHECK_FIELD (num, 63, 0, strict);
a97685e9
JL		 3183 num = 63 - num;
3184 opcode |= (num & 0x20) << 6;
3185 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
3186
9e4f2d3a
JL		 3187 /* Handle a 6 bit field length at 23,27:31. */
3188 case '%':
3189 flag = 0;
3190 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3191 if (strict && the_insn.exp.X_op != O_constant)
3192 break;
9e4f2d3a 3193 s = expr_end;
0f4f8b56 3194 CHECK_FIELD (num, 64, 1, strict);
9e4f2d3a
JL		 3195 num--;
3196 opcode |= (num & 0x20) << 3;
3197 num = 31 - (num & 0x1f);
3198 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3199
3200 /* Handle a 6 bit field length at 19,27:31. */
3201 case '|':
3202 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3203 if (strict && the_insn.exp.X_op != O_constant)
3204 break;
9e4f2d3a 3205 s = expr_end;
0f4f8b56 3206 CHECK_FIELD (num, 64, 1, strict);
9e4f2d3a
JL		 3207 num--;
3208 opcode |= (num & 0x20) << 7;
3209 num = 31 - (num & 0x1f);
3210 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3211
252b5132
RH		 3212 /* Handle a 5 bit bit position at 26. */
3213 case 'P':
3214 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3215 if (strict && the_insn.exp.X_op != O_constant)
3216 break;
252b5132 3217 s = expr_end;
0f4f8b56 3218 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 3219 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
3220
9e4f2d3a
JL		 3221 /* Handle a 6 bit bit position at 20,22:26. */
3222 case 'q':
3223 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3224 if (strict && the_insn.exp.X_op != O_constant)
3225 break;
9e4f2d3a 3226 s = expr_end;
0f4f8b56 3227 CHECK_FIELD (num, 63, 0, strict);
9e4f2d3a
JL		 3228 opcode |= (num & 0x20) << 6;
3229 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
3230
252b5132
RH		 3231 /* Handle a 5 bit immediate at 10. */
3232 case 'Q':
252b5132 3233 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3234 if (strict && the_insn.exp.X_op != O_constant)
3235 break;
252b5132
RH		 3236 if (the_insn.exp.X_op != O_constant)
3237 break;
3238 s = expr_end;
0f4f8b56 3239 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 3240 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
3241
a97685e9
JL		 3242 /* Handle a 9 bit immediate at 28. */
3243 case '$':
3244 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3245 if (strict && the_insn.exp.X_op != O_constant)
3246 break;
a97685e9 3247 s = expr_end;
0f4f8b56 3248 CHECK_FIELD (num, 511, 1, strict);
a97685e9
JL		 3249 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
3250
252b5132
RH		 3251 /* Handle a 13 bit immediate at 18. */
3252 case 'A':
3253 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3254 if (strict && the_insn.exp.X_op != O_constant)
3255 break;
252b5132 3256 s = expr_end;
0f4f8b56 3257 CHECK_FIELD (num, 8191, 0, strict);
252b5132
RH		 3258 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
3259
3260 /* Handle a 26 bit immediate at 31. */
3261 case 'D':
3262 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3263 if (strict && the_insn.exp.X_op != O_constant)
3264 break;
252b5132 3265 s = expr_end;
0f4f8b56 3266 CHECK_FIELD (num, 671108864, 0, strict);
252b5132
RH		 3267 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3268
3269 /* Handle a 3 bit SFU identifier at 25. */
97e1581b 3270 case 'v':
252b5132
RH		 3271 if (*s++ != ',')
3272 as_bad (_("Invalid SFU identifier"));
3273 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3274 if (strict && the_insn.exp.X_op != O_constant)
3275 break;
252b5132 3276 s = expr_end;
0f4f8b56 3277 CHECK_FIELD (num, 7, 0, strict);
252b5132
RH		 3278 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3279
3280 /* Handle a 20 bit SOP field for spop0. */
3281 case 'O':
3282 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3283 if (strict && the_insn.exp.X_op != O_constant)
3284 break;
252b5132 3285 s = expr_end;
0f4f8b56 3286 CHECK_FIELD (num, 1048575, 0, strict);
252b5132
RH		 3287 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
3288 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3289
3290 /* Handle a 15bit SOP field for spop1. */
3291 case 'o':
3292 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3293 if (strict && the_insn.exp.X_op != O_constant)
3294 break;
252b5132 3295 s = expr_end;
0f4f8b56 3296 CHECK_FIELD (num, 32767, 0, strict);
252b5132
RH		 3297 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
3298
3299 /* Handle a 10bit SOP field for spop3. */
3300 case '0':
3301 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3302 if (strict && the_insn.exp.X_op != O_constant)
3303 break;
252b5132 3304 s = expr_end;
0f4f8b56 3305 CHECK_FIELD (num, 1023, 0, strict);
252b5132
RH		 3306 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
3307 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3308
3309 /* Handle a 15 bit SOP field for spop2. */
3310 case '1':
3311 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3312 if (strict && the_insn.exp.X_op != O_constant)
3313 break;
252b5132 3314 s = expr_end;
0f4f8b56 3315 CHECK_FIELD (num, 32767, 0, strict);
252b5132
RH		 3316 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
3317 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3318
3319 /* Handle a 3-bit co-processor ID field. */
3320 case 'u':
3321 if (*s++ != ',')
3322 as_bad (_("Invalid COPR identifier"));
3323 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3324 if (strict && the_insn.exp.X_op != O_constant)
3325 break;
252b5132 3326 s = expr_end;
0f4f8b56 3327 CHECK_FIELD (num, 7, 0, strict);
252b5132
RH		 3328 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3329
3330 /* Handle a 22bit SOP field for copr. */
3331 case '2':
3332 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3333 if (strict && the_insn.exp.X_op != O_constant)
3334 break;
252b5132 3335 s = expr_end;
0f4f8b56 3336 CHECK_FIELD (num, 4194303, 0, strict);
252b5132
RH		 3337 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
3338 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3339
1cf6ae67
JL		 3340 /* Handle a source FP operand format completer. */
3341 case '{':
3342 if (*s == ',' && *(s+1) == 't')
3343 {
3344 the_insn.trunc = 1;
3345 s += 2;
3346 }
3347 else
3348 the_insn.trunc = 0;
3349 flag = pa_parse_fp_cnv_format (&s);
3350 the_insn.fpof1 = flag;
3351 if (flag == W || flag == UW)
3352 flag = SGL;
3353 if (flag == DW || flag == UDW)
3354 flag = DBL;
3355 if (flag == QW || flag == UQW)
3356 flag = QUAD;
3357 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3358
3359 /* Handle a destination FP operand format completer. */
3360 case '_':
3361 /* pa_parse_format needs the ',' prefix. */
3362 s--;
3363 flag = pa_parse_fp_cnv_format (&s);
3364 the_insn.fpof2 = flag;
3365 if (flag == W || flag == UW)
3366 flag = SGL;
3367 if (flag == DW || flag == UDW)
3368 flag = DBL;
3369 if (flag == QW || flag == UQW)
3370 flag = QUAD;
3371 opcode |= flag << 13;
3372 if (the_insn.fpof1 == SGL
3373 || the_insn.fpof1 == DBL
3374 || the_insn.fpof1 == QUAD)
3375 {
3376 if (the_insn.fpof2 == SGL
3377 || the_insn.fpof2 == DBL
3378 || the_insn.fpof2 == QUAD)
3379 flag = 0;
3380 else if (the_insn.fpof2 == W
3381 || the_insn.fpof2 == DW
3382 || the_insn.fpof2 == QW)
3383 flag = 2;
3384 else if (the_insn.fpof2 == UW
3385 || the_insn.fpof2 == UDW
3386 || the_insn.fpof2 == UQW)
3387 flag = 6;
3388 else
3389 abort ();
3390 }
3391 else if (the_insn.fpof1 == W
3392 || the_insn.fpof1 == DW
3393 || the_insn.fpof1 == QW)
3394 {
3395 if (the_insn.fpof2 == SGL
3396 || the_insn.fpof2 == DBL
3397 || the_insn.fpof2 == QUAD)
3398 flag = 1;
3399 else
3400 abort ();
3401 }
3402 else if (the_insn.fpof1 == UW
3403 || the_insn.fpof1 == UDW
3404 || the_insn.fpof1 == UQW)
3405 {
3406 if (the_insn.fpof2 == SGL
3407 || the_insn.fpof2 == DBL
3408 || the_insn.fpof2 == QUAD)
3409 flag = 5;
3410 else
3411 abort ();
3412 }
3413 flag |= the_insn.trunc;
3414 INSERT_FIELD_AND_CONTINUE (opcode, flag, 15);
252b5132
RH		 3415
3416 /* Handle a source FP operand format completer. */
3417 case 'F':
3418 flag = pa_parse_fp_format (&s);
3419 the_insn.fpof1 = flag;
3420 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3421
3422 /* Handle a destination FP operand format completer. */
3423 case 'G':
3424 /* pa_parse_format needs the ',' prefix. */
3425 s--;
3426 flag = pa_parse_fp_format (&s);
3427 the_insn.fpof2 = flag;
3428 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
3429
9ecc05f0
JL		 3430 /* Handle a source FP operand format completer at 20. */
3431 case 'I':
3432 flag = pa_parse_fp_format (&s);
3433 the_insn.fpof1 = flag;
3434 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3435
97e1581b
JL		 3436 /* Handle a floating point operand format at 26.
3437 Only allows single and double precision. */
3438 case 'H':
3439 flag = pa_parse_fp_format (&s);
3440 switch (flag)
3441 {
3442 case SGL:
3443 opcode |= 0x20;
3444 case DBL:
3445 the_insn.fpof1 = flag;
3446 continue;
252b5132 3447
97e1581b
JL		 3448 case QUAD:
3449 case ILLEGAL_FMT:
3450 default:
3451 as_bad (_("Invalid Floating Point Operand Format."));
3452 }
3453 break;
252b5132 3454
97e1581b
JL		 3455 /* Handle all floating point registers. */
3456 case 'f':
3457 switch (*++args)
3458 {
3459 /* Float target register. */
3460 case 't':
0f4f8b56
JL		 3461 /* This should be more strict. Small steps. */
3462 if (strict && *s != '%')
3463 break;
e7c1f43c 3464 num = pa_parse_number (&s, 0);
97e1581b
JL		 3465 CHECK_FIELD (num, 31, 0, 0);
3466 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
252b5132 3467
97e1581b
JL		 3468 /* Float target register with L/R selection. */
3469 case 'T':
252b5132 3470 {
97e1581b 3471 struct pa_11_fp_reg_struct result;
252b5132 3472
0f4f8b56
JL		 3473 /* This should be more strict. Small steps. */
3474 if (strict && *s != '%')
3475 break;
e7c1f43c 3476 pa_parse_number (&s, &result);
97e1581b
JL		 3477 CHECK_FIELD (result.number_part, 31, 0, 0);
3478 opcode |= result.number_part;
b53fcc20 3479
97e1581b
JL		 3480 /* 0x30 opcodes are FP arithmetic operation opcodes
3481 and need to be turned into 0x38 opcodes. This
3482 is not necessary for loads/stores. */
3483 if (need_pa11_opcode (&the_insn, &result)
3484 && ((opcode & 0xfc000000) == 0x30000000))
3485 opcode |= 1 << 27;
b53fcc20 3486
97e1581b
JL		 3487 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
3488 }
252b5132 3489
97e1581b
JL		 3490 /* Float operand 1. */
3491 case 'a':
3492 {
3493 struct pa_11_fp_reg_struct result;
252b5132 3494
0f4f8b56
JL		 3495 /* This should be more strict. Small steps. */
3496 if (strict && *s != '%')
3497 break;
e7c1f43c 3498 pa_parse_number (&s, &result);
97e1581b
JL		 3499 CHECK_FIELD (result.number_part, 31, 0, 0);
3500 opcode |= result.number_part << 21;
3501 if (need_pa11_opcode (&the_insn, &result))
3502 {
3503 opcode |= (result.l_r_select & 1) << 7;
3504 opcode |= 1 << 27;
3505 }
3506 continue;
3507 }
252b5132 3508
97e1581b 3509 /* Float operand 1 with L/R selection. */
e061d86f 3510 case 'X':
97e1581b 3511 case 'A':
252b5132 3512 {
97e1581b
JL		 3513 struct pa_11_fp_reg_struct result;
3514
0f4f8b56
JL		 3515 /* This should be more strict. Small steps. */
3516 if (strict && *s != '%')
3517 break;
e7c1f43c 3518 pa_parse_number (&s, &result);
97e1581b
JL		 3519 CHECK_FIELD (result.number_part, 31, 0, 0);
3520 opcode |= result.number_part << 21;
3521 opcode |= (result.l_r_select & 1) << 7;
3522 continue;
252b5132 3523 }
252b5132 3524
97e1581b
JL		 3525 /* Float operand 2. */
3526 case 'b':
3527 {
3528 struct pa_11_fp_reg_struct result;
252b5132 3529
0f4f8b56
JL		 3530 /* This should be more strict. Small steps. */
3531 if (strict && *s != '%')
3532 break;
e7c1f43c 3533 pa_parse_number (&s, &result);
97e1581b
JL		 3534 CHECK_FIELD (result.number_part, 31, 0, 0);
3535 opcode |= (result.number_part & 0x1f) << 16;
3536 if (need_pa11_opcode (&the_insn, &result))
3537 {
3538 opcode |= (result.l_r_select & 1) << 12;
3539 opcode |= 1 << 27;
3540 }
3541 continue;
3542 }
3543
3544 /* Float operand 2 with L/R selection. */
3545 case 'B':
252b5132 3546 {
97e1581b
JL		 3547 struct pa_11_fp_reg_struct result;
3548
0f4f8b56
JL		 3549 /* This should be more strict. Small steps. */
3550 if (strict && *s != '%')
3551 break;
e7c1f43c 3552 pa_parse_number (&s, &result);
97e1581b
JL		 3553 CHECK_FIELD (result.number_part, 31, 0, 0);
3554 opcode |= (result.number_part & 0x1f) << 16;
252b5132 3555 opcode |= (result.l_r_select & 1) << 12;
97e1581b 3556 continue;
252b5132 3557 }
252b5132 3558
97e1581b
JL		 3559 /* Float operand 3 for fmpyfadd, fmpynfadd. */
3560 case 'C':
3561 {
3562 struct pa_11_fp_reg_struct result;
3563 int regnum;
3564
0f4f8b56
JL		 3565 /* This should be more strict. Small steps. */
3566 if (strict && *s != '%')
3567 break;
e7c1f43c 3568 pa_parse_number (&s, &result);
97e1581b
JL		 3569 CHECK_FIELD (result.number_part, 31, 0, 0);
3570 opcode |= (result.number_part & 0x1c) << 11;
3571 opcode |= (result.number_part & 0x3) << 9;
3572 opcode |= (result.l_r_select & 1) << 8;
3573 continue;
3574 }
b53fcc20 3575
97e1581b
JL		 3576 /* Float mult operand 1 for fmpyadd, fmpysub */
3577 case 'i':
3578 {
3579 struct pa_11_fp_reg_struct result;
b53fcc20 3580
0f4f8b56
JL		 3581 /* This should be more strict. Small steps. */
3582 if (strict && *s != '%')
3583 break;
e7c1f43c 3584 pa_parse_number (&s, &result);
97e1581b
JL		 3585 CHECK_FIELD (result.number_part, 31, 0, 0);
3586 if (the_insn.fpof1 == SGL)
3587 {
3588 if (result.number_part < 16)
3589 {
3590 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3591 break;
3592 }
252b5132 3593
97e1581b
JL		 3594 result.number_part &= 0xF;
3595 result.number_part |= (result.l_r_select & 1) << 4;
3596 }
3597 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
3598 }
3599
3600 /* Float mult operand 2 for fmpyadd, fmpysub */
3601 case 'j':
252b5132 3602 {
97e1581b
JL		 3603 struct pa_11_fp_reg_struct result;
3604
0f4f8b56
JL		 3605 /* This should be more strict. Small steps. */
3606 if (strict && *s != '%')
3607 break;
e7c1f43c 3608 pa_parse_number (&s, &result);
97e1581b
JL		 3609 CHECK_FIELD (result.number_part, 31, 0, 0);
3610 if (the_insn.fpof1 == SGL)
252b5132 3611 {
97e1581b
JL		 3612 if (result.number_part < 16)
3613 {
3614 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3615 break;
3616 }
3617 result.number_part &= 0xF;
3618 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3619 }
97e1581b 3620 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
252b5132 3621 }
252b5132 3622
97e1581b
JL		 3623 /* Float mult target for fmpyadd, fmpysub */
3624 case 'k':
252b5132 3625 {
97e1581b
JL		 3626 struct pa_11_fp_reg_struct result;
3627
0f4f8b56
JL		 3628 /* This should be more strict. Small steps. */
3629 if (strict && *s != '%')
3630 break;
e7c1f43c 3631 pa_parse_number (&s, &result);
97e1581b
JL		 3632 CHECK_FIELD (result.number_part, 31, 0, 0);
3633 if (the_insn.fpof1 == SGL)
252b5132 3634 {
97e1581b
JL		 3635 if (result.number_part < 16)
3636 {
3637 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3638 break;
3639 }
3640 result.number_part &= 0xF;
3641 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3642 }
97e1581b 3643 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 0);
252b5132 3644 }
252b5132 3645
97e1581b
JL		 3646 /* Float add operand 1 for fmpyadd, fmpysub */
3647 case 'l':
252b5132 3648 {
97e1581b
JL		 3649 struct pa_11_fp_reg_struct result;
3650
0f4f8b56
JL		 3651 /* This should be more strict. Small steps. */
3652 if (strict && *s != '%')
3653 break;
e7c1f43c 3654 pa_parse_number (&s, &result);
97e1581b
JL		 3655 CHECK_FIELD (result.number_part, 31, 0, 0);
3656 if (the_insn.fpof1 == SGL)
252b5132 3657 {
97e1581b
JL		 3658 if (result.number_part < 16)
3659 {
3660 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3661 break;
3662 }
3663 result.number_part &= 0xF;
3664 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3665 }
97e1581b 3666 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
252b5132 3667 }
252b5132 3668
97e1581b
JL		 3669 /* Float add target for fmpyadd, fmpysub */
3670 case 'm':
252b5132 3671 {
97e1581b
JL		 3672 struct pa_11_fp_reg_struct result;
3673
0f4f8b56
JL		 3674 /* This should be more strict. Small steps. */
3675 if (strict && *s != '%')
3676 break;
e7c1f43c 3677 pa_parse_number (&s, &result);
97e1581b
JL		 3678 CHECK_FIELD (result.number_part, 31, 0, 0);
3679 if (the_insn.fpof1 == SGL)
252b5132 3680 {
97e1581b
JL		 3681 if (result.number_part < 16)
3682 {
3683 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3684 break;
3685 }
3686 result.number_part &= 0xF;
3687 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3688 }
97e1581b 3689 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
252b5132 3690 }
252b5132 3691
71823da4
JL		 3692 /* Handle L/R register halves like 'x'. */
3693 case 'e':
3694 {
3695 struct pa_11_fp_reg_struct result;
3696
3697 if (strict && *s != '%')
3698 break;
3699 pa_parse_number (&s, &result);
3700 CHECK_FIELD (result.number_part, 31, 0, 0);
3701 opcode |= (result.number_part & 0x1f) << 16;
3702 if (need_pa11_opcode (&the_insn, &result))
3703 {
3704 opcode |= (result.l_r_select & 1) << 1;
3705 }
3706 continue;
97e1581b
JL		 3707 default:
3708 abort ();
3709 }
3710 break;
3711
3712 /* Handle L/R register halves like 'x'. */
3713 case 'e':
252b5132
RH		 3714 {
3715 struct pa_11_fp_reg_struct result;
3716
0f4f8b56
JL		 3717 /* This should be more strict. Small steps. */
3718 if (strict && *s != '%')
3719 break;
e7c1f43c 3720 pa_parse_number (&s, &result);
252b5132 3721 CHECK_FIELD (result.number_part, 31, 0, 0);
97e1581b
JL		 3722 opcode |= (result.number_part & 0x1f) << 16;
3723 if (need_pa11_opcode (&the_insn, &result))
252b5132 3724 {
97e1581b 3725 opcode |= (result.l_r_select & 1) << 1;
252b5132 3726 }
97e1581b 3727 continue;
252b5132
RH		 3728 }
3729
252b5132
RH		 3730 default:
3731 abort ();
3732 }
3733 break;
3734 }
3735
3736 failed:
3737 /* Check if the args matched. */
3738 if (match == FALSE)
3739 {
3740 if (&insn[1] - pa_opcodes < (int) NUMOPCODES
3741 && !strcmp (insn->name, insn[1].name))
3742 {
3743 ++insn;
3744 s = argstart;
3745 continue;
3746 }
3747 else
3748 {
3749 as_bad (_("Invalid operands %s"), error_message);
3750 return;
3751 }
3752 }
3753 break;
3754 }
3755
3756 the_insn.opcode = opcode;
3757}
3758
3759/* Turn a string in input_line_pointer into a floating point constant of type
3760 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3761 emitted is stored in *sizeP . An error message or NULL is returned. */
3762
3763#define MAX_LITTLENUMS 6
3764
3765char *
3766md_atof (type, litP, sizeP)
3767 char type;
3768 char *litP;
3769 int *sizeP;
3770{
3771 int prec;
3772 LITTLENUM_TYPE words[MAX_LITTLENUMS];
3773 LITTLENUM_TYPE *wordP;
3774 char *t;
3775
3776 switch (type)
3777 {
3778
3779 case 'f':
3780 case 'F':
3781 case 's':
3782 case 'S':
3783 prec = 2;
3784 break;
3785
3786 case 'd':
3787 case 'D':
3788 case 'r':
3789 case 'R':
3790 prec = 4;
3791 break;
3792
3793 case 'x':
3794 case 'X':
3795 prec = 6;
3796 break;
3797
3798 case 'p':
3799 case 'P':
3800 prec = 6;
3801 break;
3802
3803 default:
3804 *sizeP = 0;
3805 return _("Bad call to MD_ATOF()");
3806 }
3807 t = atof_ieee (input_line_pointer, type, words);
3808 if (t)
3809 input_line_pointer = t;
3810 *sizeP = prec * sizeof (LITTLENUM_TYPE);
3811 for (wordP = words; prec--;)
3812 {
3813 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
3814 litP += sizeof (LITTLENUM_TYPE);
3815 }
3816 return NULL;
3817}
3818
3819/* Write out big-endian. */
3820
3821void
3822md_number_to_chars (buf, val, n)
3823 char *buf;
3824 valueT val;
3825 int n;
3826{
3827 number_to_chars_bigendian (buf, val, n);
3828}
3829
3830/* Translate internal representation of relocation info to BFD target
3831 format. */
3832
3833arelent **
3834tc_gen_reloc (section, fixp)
3835 asection *section;
3836 fixS *fixp;
3837{
3838 arelent *reloc;
3839 struct hppa_fix_struct *hppa_fixp;
3840 bfd_reloc_code_real_type code;
3841 static arelent *no_relocs = NULL;
3842 arelent **relocs;
3843 bfd_reloc_code_real_type **codes;
3844 int n_relocs;
3845 int i;
3846
3847 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
3848 if (fixp->fx_addsy == 0)
3849 return &no_relocs;
3850 assert (hppa_fixp != 0);
3851 assert (section != 0);
3852
3853 reloc = (arelent *) xmalloc (sizeof (arelent));
3854
a0f75b47
ILT		 3855 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3856 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3857 codes = (bfd_reloc_code_real_type **) hppa_gen_reloc_type (stdoutput,
3858 fixp->fx_r_type,
3859 hppa_fixp->fx_r_format,
3860 hppa_fixp->fx_r_field,
3861 fixp->fx_subsy != NULL,
a0f75b47 3862 symbol_get_bfdsym (fixp->fx_addsy));
252b5132
RH		 3863
3864 if (codes == NULL)
3865 abort ();
3866
3867 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
3868 ;
3869
3870 relocs = (arelent **) xmalloc (sizeof (arelent *) * n_relocs + 1);
3871 reloc = (arelent *) xmalloc (sizeof (arelent) * n_relocs);
3872 for (i = 0; i < n_relocs; i++)
3873 relocs[i] = &reloc[i];
3874
3875 relocs[n_relocs] = NULL;
3876
3877#ifdef OBJ_ELF
3878 switch (fixp->fx_r_type)
3879 {
3880 default:
3881 assert (n_relocs == 1);
3882
3883 code = *codes[0];
3884
a0f75b47
ILT		 3885 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3886 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3887 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
3888 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
3889 reloc->addend = 0; /* default */
3890
3891 assert (reloc->howto && code == reloc->howto->type);
3892
3893 /* Now, do any processing that is dependent on the relocation type. */
3894 switch (code)
3895 {
3896 case R_PARISC_DLTREL21L:
3897 case R_PARISC_DLTREL14R:
3898 case R_PARISC_DLTREL14F:
3899 case R_PARISC_PLABEL32:
3900 case R_PARISC_PLABEL21L:
3901 case R_PARISC_PLABEL14R:
3902 /* For plabel relocations, the addend of the
3903 relocation should be either 0 (no static link) or 2
3904 (static link required).
3905
3906 FIXME: We always assume no static link!
3907
3908 We also slam a zero addend into the DLT relative relocs;
3909 it doesn't make a lot of sense to use any addend since
3910 it gets you a different (eg unknown) DLT entry. */
3911 reloc->addend = 0;
3912 break;
3913
3914 case R_PARISC_PCREL21L:
3915 case R_PARISC_PCREL17R:
3916 case R_PARISC_PCREL17F:
3917 case R_PARISC_PCREL17C:
3918 case R_PARISC_PCREL14R:
3919 case R_PARISC_PCREL14F:
3920 /* The constant is stored in the instruction. */
3921 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3922 break;
3923 default:
3924 reloc->addend = fixp->fx_offset;
3925 break;
3926 }
3927 break;
3928 }
3929#else /* OBJ_SOM */
3930
3931 /* Walk over reach relocation returned by the BFD backend. */
3932 for (i = 0; i < n_relocs; i++)
3933 {
3934 code = *codes[i];
3935
398e8c25
ILT		 3936 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3937 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3938 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
3939 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3940
3941 switch (code)
3942 {
3943 case R_COMP2:
3944 /* The only time we ever use a R_COMP2 fixup is for the difference
3945 of two symbols. With that in mind we fill in all four
3946 relocs now and break out of the loop. */
3947 assert (i == 1);
993142d5 3948 relocs[0]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3949 relocs[0]->howto = bfd_reloc_type_lookup (stdoutput, *codes[0]);
3950 relocs[0]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3951 relocs[0]->addend = 0;
993142d5
ILT		 3952 relocs[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3953 *relocs[1]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3954 relocs[1]->howto = bfd_reloc_type_lookup (stdoutput, *codes[1]);
3955 relocs[1]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3956 relocs[1]->addend = 0;
993142d5
ILT		 3957 relocs[2]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3958 *relocs[2]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);
252b5132
RH		 3959 relocs[2]->howto = bfd_reloc_type_lookup (stdoutput, *codes[2]);
3960 relocs[2]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3961 relocs[2]->addend = 0;
993142d5 3962 relocs[3]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3963 relocs[3]->howto = bfd_reloc_type_lookup (stdoutput, *codes[3]);
3964 relocs[3]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3965 relocs[3]->addend = 0;
993142d5 3966 relocs[4]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3967 relocs[4]->howto = bfd_reloc_type_lookup (stdoutput, *codes[4]);
3968 relocs[4]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3969 relocs[4]->addend = 0;
3970 goto done;
3971 case R_PCREL_CALL:
3972 case R_ABS_CALL:
3973 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3974 break;
3975
3976 case R_DLT_REL:
3977 case R_DATA_PLABEL:
3978 case R_CODE_PLABEL:
3979 /* For plabel relocations, the addend of the
3980 relocation should be either 0 (no static link) or 2
3981 (static link required).
3982
3983 FIXME: We always assume no static link!
3984
3985 We also slam a zero addend into the DLT relative relocs;
3986 it doesn't make a lot of sense to use any addend since
3987 it gets you a different (eg unknown) DLT entry. */
3988 relocs[i]->addend = 0;
3989 break;
3990
3991 case R_N_MODE:
3992 case R_S_MODE:
3993 case R_D_MODE:
3994 case R_R_MODE:
3995 case R_FSEL:
3996 case R_LSEL:
3997 case R_RSEL:
3998 case R_BEGIN_BRTAB:
3999 case R_END_BRTAB:
4000 case R_BEGIN_TRY:
4001 case R_N0SEL:
4002 case R_N1SEL:
4003 /* There is no symbol or addend associated with these fixups. */
993142d5
ILT		 4004 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
4005 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
252b5132
RH		 4006 relocs[i]->addend = 0;
4007 break;
4008
4009 case R_END_TRY:
4010 case R_ENTRY:
4011 case R_EXIT:
4012 /* There is no symbol associated with these fixups. */
993142d5
ILT		 4013 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
4014 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
252b5132
RH		 4015 relocs[i]->addend = fixp->fx_offset;
4016 break;
4017
4018 default:
4019 relocs[i]->addend = fixp->fx_offset;
4020 }
4021 }
4022
4023 done:
4024#endif
4025
4026 return relocs;
4027}
4028
4029/* Process any machine dependent frag types. */
4030
4031void
4032md_convert_frag (abfd, sec, fragP)
4033 register bfd *abfd;
4034 register asection *sec;
4035 register fragS *fragP;
4036{
4037 unsigned int address;
4038
4039 if (fragP->fr_type == rs_machine_dependent)
4040 {
4041 switch ((int) fragP->fr_subtype)
4042 {
4043 case 0:
4044 fragP->fr_type = rs_fill;
4045 know (fragP->fr_var == 1);
4046 know (fragP->fr_next);
4047 address = fragP->fr_address + fragP->fr_fix;
4048 if (address % fragP->fr_offset)
4049 {
4050 fragP->fr_offset =
4051 fragP->fr_next->fr_address
4052 - fragP->fr_address
4053 - fragP->fr_fix;
4054 }
4055 else
4056 fragP->fr_offset = 0;
4057 break;
4058 }
4059 }
4060}
4061
4062/* Round up a section size to the appropriate boundary. */
4063
4064valueT
4065md_section_align (segment, size)
4066 asection *segment;
4067 valueT size;
4068{
4069 int align = bfd_get_section_alignment (stdoutput, segment);
4070 int align2 = (1 << align) - 1;
4071
4072 return (size + align2) & ~align2;
4073}
4074
4075/* Return the approximate size of a frag before relaxation has occurred. */
4076int
4077md_estimate_size_before_relax (fragP, segment)
4078 register fragS *fragP;
4079 asection *segment;
4080{
4081 int size;
4082
4083 size = 0;
4084
4085 while ((fragP->fr_fix + size) % fragP->fr_offset)
4086 size++;
4087
4088 return size;
4089}
4090\f
4091CONST char *md_shortopts = "";
4092struct option md_longopts[] = {
4093 {NULL, no_argument, NULL, 0}
4094};
4095size_t md_longopts_size = sizeof(md_longopts);
4096
4097int
4098md_parse_option (c, arg)
4099 int c;
4100 char *arg;
4101{
4102 return 0;
4103}
4104
4105void
4106md_show_usage (stream)
4107 FILE *stream;
4108{
4109}
4110\f
4111/* We have no need to default values of symbols. */
4112
4113symbolS *
4114md_undefined_symbol (name)
4115 char *name;
4116{
4117 return 0;
4118}
4119
4120/* Apply a fixup to an instruction. */
4121
4122int
4123md_apply_fix (fixP, valp)
4124 fixS *fixP;
4125 valueT *valp;
4126{
4127 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
4128 struct hppa_fix_struct *hppa_fixP;
4129 long new_val, result = 0;
4130 unsigned int w1, w2, w, resulti;
4131
4132 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
4133 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
4134 never be "applied" (they are just markers). Likewise for
4135 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
4136#ifdef OBJ_SOM
4137 if (fixP->fx_r_type == R_HPPA_ENTRY
4138 || fixP->fx_r_type == R_HPPA_EXIT
4139 || fixP->fx_r_type == R_HPPA_BEGIN_BRTAB
4140 || fixP->fx_r_type == R_HPPA_END_BRTAB
4141 || fixP->fx_r_type == R_HPPA_BEGIN_TRY)
4142 return 1;
4143
4144 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
4145 fixups are considered not adjustable, which in turn causes
4146 adjust_reloc_syms to not set fx_offset. Ugh. */
4147 if (fixP->fx_r_type == R_HPPA_END_TRY)
4148 {
4149 fixP->fx_offset = *valp;
4150 return 1;
4151 }
4152#endif
4153
4154 /* There should have been an HPPA specific fixup associated
4155 with the GAS fixup. */
4156 if (hppa_fixP)
4157 {
4158 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
4159 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
4160
4161 /* If there is a symbol associated with this fixup, then it's something
4162 which will need a SOM relocation (except for some PC-relative relocs).
4163 In such cases we should treat the "val" or "addend" as zero since it
4164 will be added in as needed from fx_offset in tc_gen_reloc. */
4165 if ((fixP->fx_addsy != NULL
4166 || fixP->fx_r_type == R_HPPA_NONE)
4167#ifdef OBJ_SOM
4168 && fmt != 32
4169#endif
4170 )
90700a53 4171 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
252b5132
RH		 4172#ifdef OBJ_SOM
4173 /* These field selectors imply that we do not want an addend. */
4174 else if (hppa_fixP->fx_r_field == e_psel
4175 || hppa_fixP->fx_r_field == e_rpsel
4176 || hppa_fixP->fx_r_field == e_lpsel
4177 || hppa_fixP->fx_r_field == e_tsel
4178 || hppa_fixP->fx_r_field == e_rtsel
4179 || hppa_fixP->fx_r_field == e_ltsel)
90700a53 4180 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
252b5132
RH		 4181 /* This is truely disgusting. The machine independent code blindly
4182 adds in the value of the symbol being relocated against. Damn! */
4183 else if (fmt == 32
4184 && fixP->fx_addsy != NULL
4185 && S_GET_SEGMENT (fixP->fx_addsy) != bfd_com_section_ptr)
4186 new_val = hppa_field_adjust (*valp - S_GET_VALUE (fixP->fx_addsy),
4187 0, hppa_fixP->fx_r_field);
4188#endif
4189 else
4190 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
4191
4192 /* Handle pc-relative exceptions from above. */
4193#define arg_reloc_stub_needed(CALLER, CALLEE) \
4194 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
90700a53 4195 if ((fmt == 12 || fmt == 17 || fmt == 22)
252b5132
RH		 4196 && fixP->fx_addsy
4197 && fixP->fx_pcrel
49863f82 4198#ifdef OBJ_SOM
252b5132 4199 && !arg_reloc_stub_needed ((long) ((obj_symbol_type *)
a0f75b47
ILT		 4200 symbol_get_bfdsym (fixP->fx_addsy))->tc_data.ap.hppa_arg_reloc,
4201 hppa_fixP->fx_arg_reloc)
49863f82 4202#endif
90700a53 4203 && (((int)(*valp) > -262144 && (int)(*valp) < 262143) && fmt != 22)
252b5132
RH		 4204 && S_GET_SEGMENT (fixP->fx_addsy) == hppa_fixP->segment
4205 && !(fixP->fx_subsy
4206 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
4207
4208 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
4209#undef arg_reloc_stub_needed
4210
4211 switch (fmt)
4212 {
4213 /* Handle all opcodes with the 'j' operand type. */
4214 case 14:
4215 CHECK_FIELD (new_val, 8191, -8192, 0);
4216
4217 /* Mask off 14 bits to be changed. */
4218 bfd_put_32 (stdoutput,
4219 bfd_get_32 (stdoutput, buf) & 0xffffc000,
4220 buf);
4221 low_sign_unext (new_val, 14, &resulti);
4222 result = resulti;
4223 break;
4224
4225 /* Handle all opcodes with the 'k' operand type. */
4226 case 21:
4227 CHECK_FIELD (new_val, 2097152, 0, 0);
4228
4229 /* Mask off 21 bits to be changed. */
4230 bfd_put_32 (stdoutput,
4231 bfd_get_32 (stdoutput, buf) & 0xffe00000,
4232 buf);
4233 dis_assemble_21 (new_val, &resulti);
4234 result = resulti;
4235 break;
4236
4237 /* Handle all the opcodes with the 'i' operand type. */
4238 case 11:
4239 CHECK_FIELD (new_val, 1023, -1023, 0);
4240
4241 /* Mask off 11 bits to be changed. */
4242 bfd_put_32 (stdoutput,
4243 bfd_get_32 (stdoutput, buf) & 0xffff800,
4244 buf);
4245 low_sign_unext (new_val, 11, &resulti);
4246 result = resulti;
4247 break;
4248
4249 /* Handle all the opcodes with the 'w' operand type. */
4250 case 12:
4251 CHECK_FIELD (new_val, 8199, -8184, 0);
4252
4253 /* Mask off 11 bits to be changed. */
4254 sign_unext ((new_val - 8) >> 2, 12, &resulti);
4255 bfd_put_32 (stdoutput,
4256 bfd_get_32 (stdoutput, buf) & 0xffffe002,
4257 buf);
4258
4259 dis_assemble_12 (resulti, &w1, &w);
4260 result = ((w1 << 2) | w);
4261 break;
4262
4263 /* Handle some of the opcodes with the 'W' operand type. */
4264 case 17:
4265 {
4266 int distance = *valp;
4267
4268 CHECK_FIELD (new_val, 262143, -262144, 0);
4269
4270 /* If this is an absolute branch (ie no link) with an out of
4271 range target, then we want to complain. */
4272 if (fixP->fx_r_type == R_HPPA_PCREL_CALL
4273 && (distance > 262143 || distance < -262144)
4274 && (bfd_get_32 (stdoutput, buf) & 0xffe00000) == 0xe8000000)
4275 CHECK_FIELD (distance, 262143, -262144, 0);
4276
4277 /* Mask off 17 bits to be changed. */
4278 bfd_put_32 (stdoutput,
4279 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
4280 buf);
4281 sign_unext ((new_val - 8) >> 2, 17, &resulti);
4282 dis_assemble_17 (resulti, &w1, &w2, &w);
4283 result = ((w2 << 2) | (w1 << 16) | w);
4284 break;
4285 }
4286
77c02e18
JL		 4287 case 22:
4288 {
4289 int distance = *valp, w3;
4290
4291 CHECK_FIELD (new_val, 8388607, -8388608, 0);
4292
4293 /* If this is an absolute branch (ie no link) with an out of
4294 range target, then we want to complain. */
4295 if (fixP->fx_r_type == R_HPPA_PCREL_CALL
4296 && (distance > 8388607 || distance < -8388608)
4297 && (bfd_get_32 (stdoutput, buf) & 0xffe00000) == 0xe8000000)
4298 CHECK_FIELD (distance, 8388607, -8388608, 0);
4299
4300 /* Mask off 22 bits to be changed. */
4301 bfd_put_32 (stdoutput,
4302 bfd_get_32 (stdoutput, buf) & 0xfc00e002,
4303 buf);
4304 sign_unext ((new_val - 8) >> 2, 22, &resulti);
4305 dis_assemble_22 (resulti, &w3, &w1, &w2, &w);
4306 result = ((w3 << 21) | (w2 << 2) | (w1 << 16) | w);
4307 break;
4308 }
4309
252b5132
RH		 4310 case 32:
4311 result = 0;
4312 bfd_put_32 (stdoutput, new_val, buf);
4313 break;
4314
4315 default:
4316 as_bad (_("Unknown relocation encountered in md_apply_fix."));
4317 return 0;
4318 }
4319
4320 /* Insert the relocation. */
4321 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
4322 return 1;
4323 }
4324 else
4325 {
4326 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
4327 (unsigned int) fixP, fixP->fx_r_type);
4328 return 0;
4329 }
4330}
4331
4332/* Exactly what point is a PC-relative offset relative TO?
4333 On the PA, they're relative to the address of the offset. */
4334
4335long
4336md_pcrel_from (fixP)
4337 fixS *fixP;
4338{
4339 return fixP->fx_where + fixP->fx_frag->fr_address;
4340}
4341
4342/* Return nonzero if the input line pointer is at the end of
4343 a statement. */
4344
4345static int
4346is_end_of_statement ()
4347{
4348 return ((*input_line_pointer == '\n')
4349 || (*input_line_pointer == ';')
4350 || (*input_line_pointer == '!'));
4351}
4352
4353/* Read a number from S. The number might come in one of many forms,
4354 the most common will be a hex or decimal constant, but it could be
4355 a pre-defined register (Yuk!), or an absolute symbol.
4356
4357 Return a number or -1 for failure.
4358
4359 When parsing PA-89 FP register numbers RESULT will be
4360 the address of a structure to return information about
4361 L/R half of FP registers, store results there as appropriate.
4362
4363 pa_parse_number can not handle negative constants and will fail
4364 horribly if it is passed such a constant. */
4365
4366static int
4367pa_parse_number (s, result)
4368 char **s;
4369 struct pa_11_fp_reg_struct *result;
4370{
4371 int num;
4372 char *name;
4373 char c;
4374 symbolS *sym;
4375 int status;
4376 char *p = *s;
4377
4378 /* Skip whitespace before the number. */
4379 while (*p == ' ' || *p == '\t')
4380 p = p + 1;
4381
4382 /* Store info in RESULT if requested by caller. */
4383 if (result)
4384 {
4385 result->number_part = -1;
4386 result->l_r_select = -1;
4387 }
4388 num = -1;
4389
4390 if (isdigit (*p))
4391 {
4392 /* Looks like a number. */
4393 num = 0;
4394
4395 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
4396 {
4397 /* The number is specified in hex. */
4398 p += 2;
4399 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
4400 || ((*p >= 'A') && (*p <= 'F')))
4401 {
4402 if (isdigit (*p))
4403 num = num * 16 + *p - '0';
4404 else if (*p >= 'a' && *p <= 'f')
4405 num = num * 16 + *p - 'a' + 10;
4406 else
4407 num = num * 16 + *p - 'A' + 10;
4408 ++p;
4409 }
4410 }
4411 else
4412 {
4413 /* The number is specified in decimal. */
4414 while (isdigit (*p))
4415 {
4416 num = num * 10 + *p - '0';
4417 ++p;
4418 }
4419 }
4420
4421 /* Store info in RESULT if requested by the caller. */
4422 if (result)
4423 {
4424 result->number_part = num;
4425
4426 if (IS_R_SELECT (p))
4427 {
4428 result->l_r_select = 1;
4429 ++p;
4430 }
4431 else if (IS_L_SELECT (p))
4432 {
4433 result->l_r_select = 0;
4434 ++p;
4435 }
4436 else
4437 result->l_r_select = 0;
4438 }
4439 }
4440 else if (*p == '%')
4441 {
4442 /* The number might be a predefined register. */
4443 num = 0;
4444 name = p;
4445 p++;
4446 c = *p;
4447 /* Tege hack: Special case for general registers as the general
4448 code makes a binary search with case translation, and is VERY
4449 slow. */
4450 if (c == 'r')
4451 {
4452 p++;
4453 if (*p == 'e' && *(p + 1) == 't'
4454 && (*(p + 2) == '0' || *(p + 2) == '1'))
4455 {
4456 p += 2;
4457 num = *p - '0' + 28;
4458 p++;
4459 }
4460 else if (*p == 'p')
4461 {
4462 num = 2;
4463 p++;
4464 }
4465 else if (!isdigit (*p))
4466 {
4467 if (print_errors)
4468 as_bad (_("Undefined register: '%s'."), name);
4469 num = -1;
4470 }
4471 else
4472 {
4473 do
4474 num = num * 10 + *p++ - '0';
4475 while (isdigit (*p));
4476 }
4477 }
4478 else
4479 {
4480 /* Do a normal register search. */
4481 while (is_part_of_name (c))
4482 {
4483 p = p + 1;
4484 c = *p;
4485 }
4486 *p = 0;
4487 status = reg_name_search (name);
4488 if (status >= 0)
4489 num = status;
4490 else
4491 {
4492 if (print_errors)
4493 as_bad (_("Undefined register: '%s'."), name);
4494 num = -1;
4495 }
4496 *p = c;
4497 }
4498
4499 /* Store info in RESULT if requested by caller. */
4500 if (result)
4501 {
4502 result->number_part = num;
4503 if (IS_R_SELECT (p - 1))
4504 result->l_r_select = 1;
4505 else if (IS_L_SELECT (p - 1))
4506 result->l_r_select = 0;
4507 else
4508 result->l_r_select = 0;
4509 }
4510 }
4511 else
4512 {
4513 /* And finally, it could be a symbol in the absolute section which
4514 is effectively a constant. */
4515 num = 0;
4516 name = p;
4517 c = *p;
4518 while (is_part_of_name (c))
4519 {
4520 p = p + 1;
4521 c = *p;
4522 }
4523 *p = 0;
4524 if ((sym = symbol_find (name)) != NULL)
4525 {
4526 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
4527 num = S_GET_VALUE (sym);
4528 else
4529 {
4530 if (print_errors)
4531 as_bad (_("Non-absolute symbol: '%s'."), name);
4532 num = -1;
4533 }
4534 }
4535 else
4536 {
4537 /* There is where we'd come for an undefined symbol
4538 or for an empty string. For an empty string we
4539 will return zero. That's a concession made for
4540 compatability with the braindamaged HP assemblers. */
4541 if (*name == 0)
4542 num = 0;
4543 else
4544 {
4545 if (print_errors)
4546 as_bad (_("Undefined absolute constant: '%s'."), name);
4547 num = -1;
4548 }
4549 }
4550 *p = c;
4551
4552 /* Store info in RESULT if requested by caller. */
4553 if (result)
4554 {
4555 result->number_part = num;
4556 if (IS_R_SELECT (p - 1))
4557 result->l_r_select = 1;
4558 else if (IS_L_SELECT (p - 1))
4559 result->l_r_select = 0;
4560 else
4561 result->l_r_select = 0;
4562 }
4563 }
4564
4565 *s = p;
4566 return num;
4567}
4568
4569#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
4570
4571/* Given NAME, find the register number associated with that name, return
4572 the integer value associated with the given name or -1 on failure. */
4573
4574static int
4575reg_name_search (name)
4576 char *name;
4577{
4578 int middle, low, high;
4579 int cmp;
4580
4581 low = 0;
4582 high = REG_NAME_CNT - 1;
4583
4584 do
4585 {
4586 middle = (low + high) / 2;
4587 cmp = strcasecmp (name, pre_defined_registers[middle].name);
4588 if (cmp < 0)
4589 high = middle - 1;
4590 else if (cmp > 0)
4591 low = middle + 1;
4592 else
4593 return pre_defined_registers[middle].value;
4594 }
4595 while (low <= high);
4596
4597 return -1;
4598}
4599
4600
4601/* Return nonzero if the given INSN and L/R information will require
4602 a new PA-1.1 opcode. */
4603
4604static int
4605need_pa11_opcode (insn, result)
4606 struct pa_it *insn;
4607 struct pa_11_fp_reg_struct *result;
4608{
4609 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
4610 {
4611 /* If this instruction is specific to a particular architecture,
4612 then set a new architecture. */
4613 if (bfd_get_mach (stdoutput) < pa11)
4614 {
4615 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, pa11))
4616 as_warn (_("could not update architecture and machine"));
4617 }
4618 return TRUE;
4619 }
4620 else
4621 return FALSE;
4622}
4623
4624/* Parse a condition for a fcmp instruction. Return the numerical
4625 code associated with the condition. */
4626
4627static int
4628pa_parse_fp_cmp_cond (s)
4629 char **s;
4630{
4631 int cond, i;
4632
4633 cond = 0;
4634
4635 for (i = 0; i < 32; i++)
4636 {
4637 if (strncasecmp (*s, fp_cond_map[i].string,
4638 strlen (fp_cond_map[i].string)) == 0)
4639 {
4640 cond = fp_cond_map[i].cond;
4641 *s += strlen (fp_cond_map[i].string);
4642 /* If not a complete match, back up the input string and
4643 report an error. */
4644 if (**s != ' ' && **s != '\t')
4645 {
4646 *s -= strlen (fp_cond_map[i].string);
4647 break;
4648 }
4649 while (**s == ' ' || **s == '\t')
4650 *s = *s + 1;
4651 return cond;
4652 }
4653 }
4654
4655 as_bad (_("Invalid FP Compare Condition: %s"), *s);
4656
4657 /* Advance over the bogus completer. */
4658 while (**s != ',' && **s != ' ' && **s != '\t')
4659 *s += 1;
4660
4661 return 0;
4662}
4663
1cf6ae67
JL		 4664/* Parse a graphics test complete for ftest. */
4665
4666static int
4667pa_parse_ftest_gfx_completer (s)
4668 char **s;
4669{
4670 int value;
4671
4672 value = 0;
4673 if (strncasecmp (*s, "acc8", 4) == 0)
4674 {
4675 value = 5;
4676 *s += 4;
4677 }
4678 else if (strncasecmp (*s, "acc6", 4) == 0)
4679 {
4680 value = 9;
4681 *s += 4;
4682 }
4683 else if (strncasecmp (*s, "acc4", 4) == 0)
4684 {
4685 value = 13;
4686 *s += 4;
4687 }
4688 else if (strncasecmp (*s, "acc2", 4) == 0)
4689 {
4690 value = 17;
4691 *s += 4;
4692 }
4693 else if (strncasecmp (*s, "acc", 3) == 0)
4694 {
4695 value = 1;
4696 *s += 3;
4697 }
4698 else if (strncasecmp (*s, "rej8", 4) == 0)
4699 {
4700 value = 6;
4701 *s += 4;
4702 }
4703 else if (strncasecmp (*s, "rej", 3) == 0)
4704 {
4705 value = 2;
4706 *s += 3;
4707 }
4708 else
4709 {
4710 value = 0;
4711 as_bad (_("Invalid FTEST completer: %s"), *s);
4712 }
4713
4714 return value;
4715}
4716
4717/* Parse an FP operand format completer returning the completer
4718 type. */
4719
4720static fp_operand_format
4721pa_parse_fp_cnv_format (s)
4722 char **s;
4723{
4724 int format;
4725
4726 format = SGL;
4727 if (**s == ',')
4728 {
4729 *s += 1;
4730 if (strncasecmp (*s, "sgl", 3) == 0)
4731 {
4732 format = SGL;
4733 *s += 4;
4734 }
4735 else if (strncasecmp (*s, "dbl", 3) == 0)
4736 {
4737 format = DBL;
4738 *s += 4;
4739 }
4740 else if (strncasecmp (*s, "quad", 4) == 0)
4741 {
4742 format = QUAD;
4743 *s += 5;
4744 }
4745 else if (strncasecmp (*s, "w", 1) == 0)
4746 {
4747 format = W;
4748 *s += 2;
4749 }
4750 else if (strncasecmp (*s, "uw", 2) == 0)
4751 {
4752 format = UW;
4753 *s += 3;
4754 }
4755 else if (strncasecmp (*s, "dw", 2) == 0)
4756 {
4757 format = DW;
4758 *s += 3;
4759 }
4760 else if (strncasecmp (*s, "udw", 3) == 0)
4761 {
4762 format = UDW;
4763 *s += 4;
4764 }
4765 else if (strncasecmp (*s, "qw", 2) == 0)
4766 {
4767 format = QW;
4768 *s += 3;
4769 }
4770 else if (strncasecmp (*s, "uqw", 3) == 0)
4771 {
4772 format = UQW;
4773 *s += 4;
4774 }
4775 else
4776 {
4777 format = ILLEGAL_FMT;
4778 as_bad (_("Invalid FP Operand Format: %3s"), *s);
4779 }
4780 }
4781
4782 return format;
4783}
252b5132
RH		 4784
4785/* Parse an FP operand format completer returning the completer
4786 type. */
4787
4788static fp_operand_format
4789pa_parse_fp_format (s)
4790 char **s;
4791{
4792 int format;
4793
4794 format = SGL;
4795 if (**s == ',')
4796 {
4797 *s += 1;
4798 if (strncasecmp (*s, "sgl", 3) == 0)
4799 {
4800 format = SGL;
4801 *s += 4;
4802 }
4803 else if (strncasecmp (*s, "dbl", 3) == 0)
4804 {
4805 format = DBL;
4806 *s += 4;
4807 }
4808 else if (strncasecmp (*s, "quad", 4) == 0)
4809 {
4810 format = QUAD;
4811 *s += 5;
4812 }
4813 else
4814 {
4815 format = ILLEGAL_FMT;
4816 as_bad (_("Invalid FP Operand Format: %3s"), *s);
4817 }
4818 }
4819
4820 return format;
4821}
4822
4823/* Convert from a selector string into a selector type. */
4824
4825static int
4826pa_chk_field_selector (str)
4827 char **str;
4828{
4829 int middle, low, high;
4830 int cmp;
4831 char name[4];
4832
4833 /* Read past any whitespace. */
4834 /* FIXME: should we read past newlines and formfeeds??? */
4835 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
4836 *str = *str + 1;
4837
4838 if ((*str)[1] == '\'' || (*str)[1] == '%')
4839 name[0] = tolower ((*str)[0]),
4840 name[1] = 0;
4841 else if ((*str)[2] == '\'' || (*str)[2] == '%')
4842 name[0] = tolower ((*str)[0]),
4843 name[1] = tolower ((*str)[1]),
4844 name[2] = 0;
252b5132
RH		 4845 else if ((*str)[3] == '\'' || (*str)[3] == '%')
4846 name[0] = tolower ((*str)[0]),
4847 name[1] = tolower ((*str)[1]),
4848 name[2] = tolower ((*str)[2]),
4849 name[3] = 0;
252b5132
RH		 4850 else
4851 return e_fsel;
4852
4853 low = 0;
4854 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
4855
4856 do
4857 {
4858 middle = (low + high) / 2;
4859 cmp = strcmp (name, selector_table[middle].prefix);
4860 if (cmp < 0)
4861 high = middle - 1;
4862 else if (cmp > 0)
4863 low = middle + 1;
4864 else
4865 {
4866 *str += strlen (name) + 1;
4867#ifndef OBJ_SOM
4868 if (selector_table[middle].field_selector == e_nsel)
4869 return e_fsel;
4870#endif
4871 return selector_table[middle].field_selector;
4872 }
4873 }
4874 while (low <= high);
4875
4876 return e_fsel;
4877}
4878
4879/* Mark (via expr_end) the end of an expression (I think). FIXME. */
4880
4881static int
4882get_expression (str)
4883 char *str;
4884{
4885 char *save_in;
4886 asection *seg;
4887
4888 save_in = input_line_pointer;
4889 input_line_pointer = str;
4890 seg = expression (&the_insn.exp);
4891 if (!(seg == absolute_section
4892 || seg == undefined_section
4893 || SEG_NORMAL (seg)))
4894 {
4895 as_warn (_("Bad segment in expression."));
4896 expr_end = input_line_pointer;
4897 input_line_pointer = save_in;
4898 return 1;
4899 }
4900 expr_end = input_line_pointer;
4901 input_line_pointer = save_in;
4902 return 0;
4903}
4904
4905/* Mark (via expr_end) the end of an absolute expression. FIXME. */
4906static int
4907pa_get_absolute_expression (insn, strp)
4908 struct pa_it *insn;
4909 char **strp;
4910{
4911 char *save_in;
4912
4913 insn->field_selector = pa_chk_field_selector (strp);
4914 save_in = input_line_pointer;
4915 input_line_pointer = *strp;
4916 expression (&insn->exp);
4917 /* This is not perfect, but is a huge improvement over doing nothing.
4918
4919 The PA assembly syntax is ambigious in a variety of ways. Consider
4920 this string "4 %r5" Is that the number 4 followed by the register
4921 r5, or is that 4 MOD 5?
4922
4923 If we get a modulo expresion When looking for an absolute, we try
4924 again cutting off the input string at the first whitespace character. */
4925 if (insn->exp.X_op == O_modulus)
4926 {
4927 char *s, c;
4928 int retval;
4929
4930 input_line_pointer = *strp;
4931 s = *strp;
4932 while (*s != ',' && *s != ' ' && *s != '\t')
4933 s++;
4934
4935 c = *s;
4936 *s = 0;
4937
4938 retval = pa_get_absolute_expression (insn, strp);
4939
4940 input_line_pointer = save_in;
4941 *s = c;
4942 return evaluate_absolute (insn);
4943 }
0f4f8b56
JL		 4944 /* When in strict mode we have a non-match, fix up the pointers
4945 and return to our caller. */
4946 if (insn->exp.X_op != O_constant && strict)
4947 {
4948 expr_end = input_line_pointer;
4949 input_line_pointer = save_in;
4950 return 0;
4951 }
252b5132
RH		 4952 if (insn->exp.X_op != O_constant)
4953 {
4954 as_bad (_("Bad segment (should be absolute)."));
4955 expr_end = input_line_pointer;
4956 input_line_pointer = save_in;
4957 return 0;
4958 }
4959 expr_end = input_line_pointer;
4960 input_line_pointer = save_in;
4961 return evaluate_absolute (insn);
4962}
4963
4964/* Evaluate an absolute expression EXP which may be modified by
4965 the selector FIELD_SELECTOR. Return the value of the expression. */
4966static int
4967evaluate_absolute (insn)
4968 struct pa_it *insn;
4969{
4970 int value;
4971 expressionS exp;
4972 int field_selector = insn->field_selector;
4973
4974 exp = insn->exp;
4975 value = exp.X_add_number;
4976
4977 switch (field_selector)
4978 {
4979 /* No change. */
4980 case e_fsel:
4981 break;
4982
4983 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4984 case e_lssel:
4985 if (value & 0x00000400)
4986 value += 0x800;
4987 value = (value & 0xfffff800) >> 11;
4988 break;
4989
4990 /* Sign extend from bit 21. */
4991 case e_rssel:
4992 if (value & 0x00000400)
4993 value |= 0xfffff800;
4994 else
4995 value &= 0x7ff;
4996 break;
4997
4998 /* Arithmetic shift right 11 bits. */
4999 case e_lsel:
5000 value = (value & 0xfffff800) >> 11;
5001 break;
5002
5003 /* Set bits 0-20 to zero. */
5004 case e_rsel:
5005 value = value & 0x7ff;
5006 break;
5007
5008 /* Add 0x800 and arithmetic shift right 11 bits. */
5009 case e_ldsel:
5010 value += 0x800;
5011 value = (value & 0xfffff800) >> 11;
5012 break;
5013
5014 /* Set bitgs 0-21 to one. */
5015 case e_rdsel:
5016 value |= 0xfffff800;
5017 break;
5018
5019#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
5020 case e_rrsel:
5021 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
5022 break;
5023
5024 case e_lrsel:
5025 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
5026 break;
5027#undef RSEL_ROUND
5028
5029 default:
5030 BAD_CASE (field_selector);
5031 break;
5032 }
5033 return value;
5034}
5035
5036/* Given an argument location specification return the associated
5037 argument location number. */
5038
5039static unsigned int
5040pa_build_arg_reloc (type_name)
5041 char *type_name;
5042{
5043
5044 if (strncasecmp (type_name, "no", 2) == 0)
5045 return 0;
5046 if (strncasecmp (type_name, "gr", 2) == 0)
5047 return 1;
5048 else if (strncasecmp (type_name, "fr", 2) == 0)
5049 return 2;
5050 else if (strncasecmp (type_name, "fu", 2) == 0)
5051 return 3;
5052 else
5053 as_bad (_("Invalid argument location: %s\n"), type_name);
5054
5055 return 0;
5056}
5057
5058/* Encode and return an argument relocation specification for
5059 the given register in the location specified by arg_reloc. */
5060
5061static unsigned int
5062pa_align_arg_reloc (reg, arg_reloc)
5063 unsigned int reg;
5064 unsigned int arg_reloc;
5065{
5066 unsigned int new_reloc;
5067
5068 new_reloc = arg_reloc;
5069 switch (reg)
5070 {
5071 case 0:
5072 new_reloc <<= 8;
5073 break;
5074 case 1:
5075 new_reloc <<= 6;
5076 break;
5077 case 2:
5078 new_reloc <<= 4;
5079 break;
5080 case 3:
5081 new_reloc <<= 2;
5082 break;
5083 default:
5084 as_bad (_("Invalid argument description: %d"), reg);
5085 }
5086
5087 return new_reloc;
5088}
5089
5090/* Parse a PA nullification completer (,n). Return nonzero if the
5091 completer was found; return zero if no completer was found. */
5092
5093static int
5094pa_parse_nullif (s)
5095 char **s;
5096{
5097 int nullif;
5098
5099 nullif = 0;
5100 if (**s == ',')
5101 {
5102 *s = *s + 1;
5103 if (strncasecmp (*s, "n", 1) == 0)
5104 nullif = 1;
5105 else
5106 {
5107 as_bad (_("Invalid Nullification: (%c)"), **s);
5108 nullif = 0;
5109 }
5110 *s = *s + 1;
5111 }
5112
5113 return nullif;
5114}
5115
5116/* Parse a non-negated compare/subtract completer returning the
5117 number (for encoding in instrutions) of the given completer.
5118
5119 ISBRANCH specifies whether or not this is parsing a condition
5120 completer for a branch (vs a nullification completer for a
5121 computational instruction. */
5122
5123static int
5124pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
5125 char **s;
5126 int isbranch;
5127{
5128 int cmpltr;
5129 char *name = *s + 1;
5130 char c;
5131 char *save_s = *s;
5132 int nullify = 0;
5133
5134 cmpltr = 0;
5135 if (**s == ',')
5136 {
5137 *s += 1;
5138 while (**s != ',' && **s != ' ' && **s != '\t')
5139 *s += 1;
5140 c = **s;
5141 **s = 0x00;
5142
5143
5144 if (strcmp (name, "=") == 0)
5145 {
5146 cmpltr = 1;
5147 }
5148 else if (strcmp (name, "<") == 0)
5149 {
5150 cmpltr = 2;
5151 }
5152 else if (strcmp (name, "<=") == 0)
5153 {
5154 cmpltr = 3;
5155 }
5156 else if (strcmp (name, "<<") == 0)
5157 {
5158 cmpltr = 4;
5159 }
5160 else if (strcmp (name, "<<=") == 0)
5161 {
5162 cmpltr = 5;
5163 }
5164 else if (strcasecmp (name, "sv") == 0)
5165 {
5166 cmpltr = 6;
5167 }
5168 else if (strcasecmp (name, "od") == 0)
5169 {
5170 cmpltr = 7;
5171 }
5172 /* If we have something like addb,n then there is no condition
5173 completer. */
5174 else if (strcasecmp (name, "n") == 0 && isbranch)
5175 {
5176 cmpltr = 0;
5177 nullify = 1;
5178 }
5179 else
5180 {
5181 cmpltr = -1;
5182 }
5183 **s = c;
5184 }
5185
5186 /* Reset pointers if this was really a ,n for a branch instruction. */
5187 if (nullify)
5188 *s = save_s;
5189
5190
5191 return cmpltr;
5192}
5193
5194/* Parse a negated compare/subtract completer returning the
5195 number (for encoding in instrutions) of the given completer.
5196
5197 ISBRANCH specifies whether or not this is parsing a condition
5198 completer for a branch (vs a nullification completer for a
5199 computational instruction. */
5200
5201static int
5202pa_parse_neg_cmpsub_cmpltr (s, isbranch)
5203 char **s;
5204 int isbranch;
5205{
5206 int cmpltr;
5207 char *name = *s + 1;
5208 char c;
5209 char *save_s = *s;
5210 int nullify = 0;
5211
5212 cmpltr = 0;
5213 if (**s == ',')
5214 {
5215 *s += 1;
5216 while (**s != ',' && **s != ' ' && **s != '\t')
5217 *s += 1;
5218 c = **s;
5219 **s = 0x00;
5220
5221
5222 if (strcasecmp (name, "tr") == 0)
5223 {
5224 cmpltr = 0;
5225 }
5226 else if (strcmp (name, "<>") == 0)
5227 {
5228 cmpltr = 1;
5229 }
5230 else if (strcmp (name, ">=") == 0)
5231 {
5232 cmpltr = 2;
5233 }
5234 else if (strcmp (name, ">") == 0)
5235 {
5236 cmpltr = 3;
5237 }
5238 else if (strcmp (name, ">>=") == 0)
5239 {
5240 cmpltr = 4;
5241 }
5242 else if (strcmp (name, ">>") == 0)
5243 {
5244 cmpltr = 5;
5245 }
5246 else if (strcasecmp (name, "nsv") == 0)
5247 {
5248 cmpltr = 6;
5249 }
5250 else if (strcasecmp (name, "ev") == 0)
5251 {
5252 cmpltr = 7;
5253 }
5254 /* If we have something like addb,n then there is no condition
5255 completer. */
5256 else if (strcasecmp (name, "n") == 0 && isbranch)
5257 {
5258 cmpltr = 0;
5259 nullify = 1;
5260 }
5261 else
5262 {
5263 cmpltr = -1;
5264 }
5265 **s = c;
5266 }
5267
5268 /* Reset pointers if this was really a ,n for a branch instruction. */
5269 if (nullify)
5270 *s = save_s;
5271
5272
5273 return cmpltr;
5274}
5275
5276
5277/* Parse a non-negated addition completer returning the number
5278 (for encoding in instrutions) of the given completer.
5279
5280 ISBRANCH specifies whether or not this is parsing a condition
5281 completer for a branch (vs a nullification completer for a
5282 computational instruction. */
5283
5284static int
5285pa_parse_nonneg_add_cmpltr (s, isbranch)
5286 char **s;
5287 int isbranch;
5288{
5289 int cmpltr;
5290 char *name = *s + 1;
5291 char c;
5292 char *save_s = *s;
5293
5294 cmpltr = 0;
5295 if (**s == ',')
5296 {
5297 *s += 1;
5298 while (**s != ',' && **s != ' ' && **s != '\t')
5299 *s += 1;
5300 c = **s;
5301 **s = 0x00;
5302 if (strcmp (name, "=") == 0)
5303 {
5304 cmpltr = 1;
5305 }
5306 else if (strcmp (name, "<") == 0)
5307 {
5308 cmpltr = 2;
5309 }
5310 else if (strcmp (name, "<=") == 0)
5311 {
5312 cmpltr = 3;
5313 }
5314 else if (strcasecmp (name, "nuv") == 0)
5315 {
5316 cmpltr = 4;
5317 }
5318 else if (strcasecmp (name, "znv") == 0)
5319 {
5320 cmpltr = 5;
5321 }
5322 else if (strcasecmp (name, "sv") == 0)
5323 {
5324 cmpltr = 6;
5325 }
5326 else if (strcasecmp (name, "od") == 0)
5327 {
5328 cmpltr = 7;
5329 }
5330 /* If we have something like addb,n then there is no condition
5331 completer. */
5332 else if (strcasecmp (name, "n") == 0 && isbranch)
5333 {
5334 cmpltr = 0;
5335 }
5336 else
5337 {
5338 cmpltr = -1;
5339 }
5340 **s = c;
5341 }
5342
5343 /* Reset pointers if this was really a ,n for a branch instruction. */
5344 if (cmpltr == 0 && *name == 'n' && isbranch)
5345 *s = save_s;
5346
5347 return cmpltr;
5348}
5349
5350/* Parse a negated addition completer returning the number
5351 (for encoding in instrutions) of the given completer.
5352
5353 ISBRANCH specifies whether or not this is parsing a condition
5354 completer for a branch (vs a nullification completer for a
5355 computational instruction). */
5356
5357static int
5358pa_parse_neg_add_cmpltr (s, isbranch)
5359 char **s;
5360 int isbranch;
5361{
5362 int cmpltr;
5363 char *name = *s + 1;
5364 char c;
5365 char *save_s = *s;
5366
5367 cmpltr = 0;
5368 if (**s == ',')
5369 {
5370 *s += 1;
5371 while (**s != ',' && **s != ' ' && **s != '\t')
5372 *s += 1;
5373 c = **s;
5374 **s = 0x00;
5375 if (strcasecmp (name, "tr") == 0)
5376 {
5377 cmpltr = 0;
5378 }
5379 else if (strcmp (name, "<>") == 0)
5380 {
5381 cmpltr = 1;
5382 }
5383 else if (strcmp (name, ">=") == 0)
5384 {
5385 cmpltr = 2;
5386 }
5387 else if (strcmp (name, ">") == 0)
5388 {
5389 cmpltr = 3;
5390 }
5391 else if (strcasecmp (name, "uv") == 0)
5392 {
5393 cmpltr = 4;
5394 }
5395 else if (strcasecmp (name, "vnz") == 0)
5396 {
5397 cmpltr = 5;
5398 }
5399 else if (strcasecmp (name, "nsv") == 0)
5400 {
5401 cmpltr = 6;
5402 }
5403 else if (strcasecmp (name, "ev") == 0)
5404 {
5405 cmpltr = 7;
5406 }
5407 /* If we have something like addb,n then there is no condition
5408 completer. */
5409 else if (strcasecmp (name, "n") == 0 && isbranch)
5410 {
5411 cmpltr = 0;
5412 }
5413 else
5414 {
5415 cmpltr = -1;
5416 }
5417 **s = c;
5418 }
5419
5420 /* Reset pointers if this was really a ,n for a branch instruction. */
5421 if (cmpltr == 0 && *name == 'n' && isbranch)
5422 *s = save_s;
5423
5424 return cmpltr;
5425}
5426
49863f82 5427#ifdef OBJ_SOM
252b5132
RH		 5428/* Handle an alignment directive. Special so that we can update the
5429 alignment of the subspace if necessary. */
5430static void
5431pa_align (bytes)
5432{
5433 /* We must have a valid space and subspace. */
5434 pa_check_current_space_and_subspace ();
5435
5436 /* Let the generic gas code do most of the work. */
5437 s_align_bytes (bytes);
5438
5439 /* If bytes is a power of 2, then update the current subspace's
5440 alignment if necessary. */
5441 if (log2 (bytes) != -1)
5442 record_alignment (current_subspace->ssd_seg, log2 (bytes));
5443}
49863f82 5444#endif
252b5132
RH		 5445
5446/* Handle a .BLOCK type pseudo-op. */
5447
5448static void
5449pa_block (z)
5450 int z;
5451{
5452 char *p;
5453 long int temp_fill;
5454 unsigned int temp_size;
5455 unsigned int i;
5456
49863f82 5457#ifdef OBJ_SOM
252b5132
RH		 5458 /* We must have a valid space and subspace. */
5459 pa_check_current_space_and_subspace ();
49863f82 5460#endif
252b5132
RH		 5461
5462 temp_size = get_absolute_expression ();
5463
5464 /* Always fill with zeros, that's what the HP assembler does. */
5465 temp_fill = 0;
5466
5467 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
5468 (relax_substateT) 0, (symbolS *) 0, (offsetT) 1, NULL);
5469 memset (p, 0, temp_size);
5470
5471 /* Convert 2 bytes at a time. */
5472
5473 for (i = 0; i < temp_size; i += 2)
5474 {
5475 md_number_to_chars (p + i,
5476 (valueT) temp_fill,
5477 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
5478 }
5479
5480 pa_undefine_label ();
5481 demand_empty_rest_of_line ();
5482}
5483
5484/* Handle a .begin_brtab and .end_brtab pseudo-op. */
5485
5486static void
5487pa_brtab (begin)
5488 int begin;
5489{
5490
5491#ifdef OBJ_SOM
5492 /* The BRTAB relocations are only availble in SOM (to denote
5493 the beginning and end of branch tables). */
5494 char *where = frag_more (0);
5495
5496 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5497 NULL, (offsetT) 0, NULL,
5498 0, begin ? R_HPPA_BEGIN_BRTAB : R_HPPA_END_BRTAB,
5499 e_fsel, 0, 0, NULL);
5500#endif
5501
5502 demand_empty_rest_of_line ();
5503}
5504
5505/* Handle a .begin_try and .end_try pseudo-op. */
5506
5507static void
5508pa_try (begin)
5509 int begin;
5510{
5511#ifdef OBJ_SOM
5512 expressionS exp;
5513 char *where = frag_more (0);
5514
5515 if (! begin)
5516 expression (&exp);
5517
5518 /* The TRY relocations are only availble in SOM (to denote
5519 the beginning and end of exception handling regions). */
5520
5521 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5522 NULL, (offsetT) 0, begin ? NULL : &exp,
5523 0, begin ? R_HPPA_BEGIN_TRY : R_HPPA_END_TRY,
5524 e_fsel, 0, 0, NULL);
5525#endif
5526
5527 demand_empty_rest_of_line ();
5528}
5529
5530/* Handle a .CALL pseudo-op. This involves storing away information
5531 about where arguments are to be found so the linker can detect
5532 (and correct) argument location mismatches between caller and callee. */
5533
5534static void
5535pa_call (unused)
5536 int unused;
5537{
49863f82 5538#ifdef OBJ_SOM
252b5132
RH		 5539 /* We must have a valid space and subspace. */
5540 pa_check_current_space_and_subspace ();
49863f82 5541#endif
252b5132
RH		 5542
5543 pa_call_args (&last_call_desc);
5544 demand_empty_rest_of_line ();
5545}
5546
5547/* Do the dirty work of building a call descriptor which describes
5548 where the caller placed arguments to a function call. */
5549
5550static void
5551pa_call_args (call_desc)
5552 struct call_desc *call_desc;
5553{
5554 char *name, c, *p;
5555 unsigned int temp, arg_reloc;
5556
5557 while (!is_end_of_statement ())
5558 {
5559 name = input_line_pointer;
5560 c = get_symbol_end ();
5561 /* Process a source argument. */
5562 if ((strncasecmp (name, "argw", 4) == 0))
5563 {
5564 temp = atoi (name + 4);
5565 p = input_line_pointer;
5566 *p = c;
5567 input_line_pointer++;
5568 name = input_line_pointer;
5569 c = get_symbol_end ();
5570 arg_reloc = pa_build_arg_reloc (name);
5571 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
5572 }
5573 /* Process a return value. */
5574 else if ((strncasecmp (name, "rtnval", 6) == 0))
5575 {
5576 p = input_line_pointer;
5577 *p = c;
5578 input_line_pointer++;
5579 name = input_line_pointer;
5580 c = get_symbol_end ();
5581 arg_reloc = pa_build_arg_reloc (name);
5582 call_desc->arg_reloc |= (arg_reloc & 0x3);
5583 }
5584 else
5585 {
5586 as_bad (_("Invalid .CALL argument: %s"), name);
5587 }
5588 p = input_line_pointer;
5589 *p = c;
5590 if (!is_end_of_statement ())
5591 input_line_pointer++;
5592 }
5593}
5594
5595/* Return TRUE if FRAG1 and FRAG2 are the same. */
5596
5597static int
5598is_same_frag (frag1, frag2)
5599 fragS *frag1;
5600 fragS *frag2;
5601{
5602
5603 if (frag1 == NULL)
5604 return (FALSE);
5605 else if (frag2 == NULL)
5606 return (FALSE);
5607 else if (frag1 == frag2)
5608 return (TRUE);
5609 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
5610 return (is_same_frag (frag1, frag2->fr_next));
5611 else
5612 return (FALSE);
5613}
5614
5615#ifdef OBJ_ELF
5616/* Build an entry in the UNWIND subspace from the given function
5617 attributes in CALL_INFO. This is not needed for SOM as using
5618 R_ENTRY and R_EXIT relocations allow the linker to handle building
5619 of the unwind spaces. */
5620
5621static void
5622pa_build_unwind_subspace (call_info)
5623 struct call_info *call_info;
5624{
5625 char *unwind;
5626 asection *seg, *save_seg;
46031ca9 5627 asymbol *sym;
252b5132 5628 subsegT subseg, save_subseg;
46031ca9 5629 int i, reloc;
252b5132
RH		 5630 char c, *p;
5631
f1a1312b 5632 if (now_seg != text_section)
7acbfc6b
JL		 5633 return;
5634
9100134c
JL		 5635 if (bfd_get_arch_info (stdoutput)->bits_per_address == 32)
5636 reloc = R_PARISC_DIR32;
46031ca9 5637 else
9100134c 5638 reloc = R_PARISC_SEGREL32;
46031ca9 5639
252b5132
RH		 5640 /* Get into the right seg/subseg. This may involve creating
5641 the seg the first time through. Make sure to have the
5642 old seg/subseg so that we can reset things when we are done. */
252b5132
RH		 5643 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
5644 if (seg == ASEC_NULL)
5645 {
5646 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
5647 bfd_set_section_flags (stdoutput, seg,
5648 SEC_READONLY | SEC_HAS_CONTENTS
b100be66
JL		 5649 | SEC_LOAD | SEC_RELOC | SEC_ALLOC | SEC_DATA);
5650 bfd_set_section_alignment (stdoutput, seg, 2);
252b5132
RH		 5651 }
5652
5653 save_seg = now_seg;
5654 save_subseg = now_subseg;
46031ca9 5655 subseg_set (seg, 0);
252b5132
RH		 5656
5657
5658 /* Get some space to hold relocation information for the unwind
5659 descriptor. */
5660 p = frag_more (4);
5661 md_number_to_chars (p, 0, 4);
5662
5663 /* Relocation info. for start offset of the function. */
5664 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
5665 call_info->start_symbol, (offsetT) 0,
46031ca9
JL		 5666 (expressionS *) NULL, 0, reloc,
5667 e_fsel, 32, 0, NULL);
252b5132
RH		 5668
5669 p = frag_more (4);
5670 md_number_to_chars (p, 0, 4);
5671
5672 /* Relocation info. for end offset of the function.
5673
5674 Because we allow reductions of 32bit relocations for ELF, this will be
5675 reduced to section_sym + offset which avoids putting the temporary
5676 symbol into the symbol table. It (should) end up giving the same
5677 value as call_info->start_symbol + function size once the linker is
5678 finished with its work. */
5679
5680 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
5681 call_info->end_symbol, (offsetT) 0,
46031ca9
JL		 5682 (expressionS *) NULL, 0, reloc,
5683 e_fsel, 32, 0, NULL);
252b5132
RH		 5684
5685 /* Dump it. */
5686 unwind = (char *) &call_info->ci_unwind;
5687 for (i = 8; i < sizeof (struct unwind_table); i++)
5688 {
5689 c = *(unwind + i);
5690 {
5691 FRAG_APPEND_1_CHAR (c);
5692 }
5693 }
5694
5695 /* Return back to the original segment/subsegment. */
5696 subseg_set (save_seg, save_subseg);
5697}
5698#endif
5699
5700/* Process a .CALLINFO pseudo-op. This information is used later
5701 to build unwind descriptors and maybe one day to support
5702 .ENTER and .LEAVE. */
5703
5704static void
5705pa_callinfo (unused)
5706 int unused;
5707{
5708 char *name, c, *p;
5709 int temp;
5710
49863f82 5711#ifdef OBJ_SOM
252b5132
RH		 5712 /* We must have a valid space and subspace. */
5713 pa_check_current_space_and_subspace ();
49863f82 5714#endif
252b5132
RH		 5715
5716 /* .CALLINFO must appear within a procedure definition. */
5717 if (!within_procedure)
5718 as_bad (_(".callinfo is not within a procedure definition"));
5719
5720 /* Mark the fact that we found the .CALLINFO for the
5721 current procedure. */
5722 callinfo_found = TRUE;
5723
5724 /* Iterate over the .CALLINFO arguments. */
5725 while (!is_end_of_statement ())
5726 {
5727 name = input_line_pointer;
5728 c = get_symbol_end ();
5729 /* Frame size specification. */
5730 if ((strncasecmp (name, "frame", 5) == 0))
5731 {
5732 p = input_line_pointer;
5733 *p = c;
5734 input_line_pointer++;
5735 temp = get_absolute_expression ();
5736 if ((temp & 0x3) != 0)
5737 {
5738 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp);
5739 temp = 0;
5740 }
5741
5742 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5743 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
5744
5745 }
5746 /* Entry register (GR, GR and SR) specifications. */
5747 else if ((strncasecmp (name, "entry_gr", 8) == 0))
5748 {
5749 p = input_line_pointer;
5750 *p = c;
5751 input_line_pointer++;
5752 temp = get_absolute_expression ();
5753 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5754 even though %r19 is caller saved. I think this is a bug in
5755 the HP assembler, and we are not going to emulate it. */
5756 if (temp < 3 || temp > 18)
5757 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5758 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
5759 }
5760 else if ((strncasecmp (name, "entry_fr", 8) == 0))
5761 {
5762 p = input_line_pointer;
5763 *p = c;
5764 input_line_pointer++;
5765 temp = get_absolute_expression ();
5766 /* Similarly the HP assembler takes 31 as the high bound even
5767 though %fr21 is the last callee saved floating point register. */
5768 if (temp < 12 || temp > 21)
5769 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5770 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
5771 }
5772 else if ((strncasecmp (name, "entry_sr", 8) == 0))
5773 {
5774 p = input_line_pointer;
5775 *p = c;
5776 input_line_pointer++;
5777 temp = get_absolute_expression ();
5778 if (temp != 3)
5779 as_bad (_("Value for ENTRY_SR must be 3\n"));
5780 }
5781 /* Note whether or not this function performs any calls. */
5782 else if ((strncasecmp (name, "calls", 5) == 0) ||
5783 (strncasecmp (name, "caller", 6) == 0))
5784 {
5785 p = input_line_pointer;
5786 *p = c;
5787 }
5788 else if ((strncasecmp (name, "no_calls", 8) == 0))
5789 {
5790 p = input_line_pointer;
5791 *p = c;
5792 }
5793 /* Should RP be saved into the stack. */
5794 else if ((strncasecmp (name, "save_rp", 7) == 0))
5795 {
5796 p = input_line_pointer;
5797 *p = c;
5798 last_call_info->ci_unwind.descriptor.save_rp = 1;
5799 }
5800 /* Likewise for SP. */
5801 else if ((strncasecmp (name, "save_sp", 7) == 0))
5802 {
5803 p = input_line_pointer;
5804 *p = c;
5805 last_call_info->ci_unwind.descriptor.save_sp = 1;
5806 }
5807 /* Is this an unwindable procedure. If so mark it so
5808 in the unwind descriptor. */
5809 else if ((strncasecmp (name, "no_unwind", 9) == 0))
5810 {
5811 p = input_line_pointer;
5812 *p = c;
5813 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
5814 }
5815 /* Is this an interrupt routine. If so mark it in the
5816 unwind descriptor. */
5817 else if ((strncasecmp (name, "hpux_int", 7) == 0))
5818 {
5819 p = input_line_pointer;
5820 *p = c;
5821 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
5822 }
5823 /* Is this a millicode routine. "millicode" isn't in my
5824 assembler manual, but my copy is old. The HP assembler
5825 accepts it, and there's a place in the unwind descriptor
5826 to drop the information, so we'll accept it too. */
5827 else if ((strncasecmp (name, "millicode", 9) == 0))
5828 {
5829 p = input_line_pointer;
5830 *p = c;
5831 last_call_info->ci_unwind.descriptor.millicode = 1;
5832 }
5833 else
5834 {
5835 as_bad (_("Invalid .CALLINFO argument: %s"), name);
5836 *input_line_pointer = c;
5837 }
5838 if (!is_end_of_statement ())
5839 input_line_pointer++;
5840 }
5841
5842 demand_empty_rest_of_line ();
5843}
5844
5845/* Switch into the code subspace. */
5846
5847static void
5848pa_code (unused)
5849 int unused;
5850{
49863f82 5851#ifdef OBJ_SOM
252b5132
RH		 5852 current_space = is_defined_space ("$TEXT$");
5853 current_subspace
5854 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 5855#endif
252b5132
RH		 5856 s_text (0);
5857 pa_undefine_label ();
5858}
5859
5860/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5861 the .comm pseudo-op has the following symtax:
5862
5863 <label> .comm <length>
5864
5865 where <label> is optional and is a symbol whose address will be the start of
5866 a block of memory <length> bytes long. <length> must be an absolute
5867 expression. <length> bytes will be allocated in the current space
5868 and subspace.
5869
5870 Also note the label may not even be on the same line as the .comm.
5871
5872 This difference in syntax means the colon function will be called
5873 on the symbol before we arrive in pa_comm. colon will set a number
5874 of attributes of the symbol that need to be fixed here. In particular
5875 the value, section pointer, fragment pointer, flags, etc. What
5876 a pain.
5877
5878 This also makes error detection all but impossible. */
5879
5880static void
5881pa_comm (unused)
5882 int unused;
5883{
5884 unsigned int size;
5885 symbolS *symbol;
5886 label_symbol_struct *label_symbol = pa_get_label ();
5887
5888 if (label_symbol)
5889 symbol = label_symbol->lss_label;
5890 else
5891 symbol = NULL;
5892
5893 SKIP_WHITESPACE ();
5894 size = get_absolute_expression ();
5895
5896 if (symbol)
5897 {
5898 S_SET_VALUE (symbol, size);
5899 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
5900 S_SET_EXTERNAL (symbol);
5901
5902 /* colon() has already set the frag to the current location in the
5903 current subspace; we need to reset the fragment to the zero address
5904 fragment. We also need to reset the segment pointer. */
a0f75b47 5905 symbol_set_frag (symbol, &zero_address_frag);
252b5132
RH		 5906 }
5907 demand_empty_rest_of_line ();
5908}
5909
5910/* Process a .END pseudo-op. */
5911
5912static void
5913pa_end (unused)
5914 int unused;
5915{
5916 demand_empty_rest_of_line ();
5917}
5918
5919/* Process a .ENTER pseudo-op. This is not supported. */
5920static void
5921pa_enter (unused)
5922 int unused;
5923{
49863f82 5924#ifdef OBJ_SOM
252b5132
RH		 5925 /* We must have a valid space and subspace. */
5926 pa_check_current_space_and_subspace ();
49863f82 5927#endif
252b5132
RH		 5928
5929 as_bad (_("The .ENTER pseudo-op is not supported"));
5930 demand_empty_rest_of_line ();
5931}
5932
5933/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5934 procesure. */
5935static void
5936pa_entry (unused)
5937 int unused;
5938{
49863f82 5939#ifdef OBJ_SOM
252b5132
RH		 5940 /* We must have a valid space and subspace. */
5941 pa_check_current_space_and_subspace ();
49863f82 5942#endif
252b5132
RH		 5943
5944 if (!within_procedure)
5945 as_bad (_("Misplaced .entry. Ignored."));
5946 else
5947 {
5948 if (!callinfo_found)
5949 as_bad (_("Missing .callinfo."));
5950 }
5951 demand_empty_rest_of_line ();
5952 within_entry_exit = TRUE;
5953
5954#ifdef OBJ_SOM
5955 /* SOM defers building of unwind descriptors until the link phase.
5956 The assembler is responsible for creating an R_ENTRY relocation
5957 to mark the beginning of a region and hold the unwind bits, and
5958 for creating an R_EXIT relocation to mark the end of the region.
5959
5960 FIXME. ELF should be using the same conventions! The problem
5961 is an unwind requires too much relocation space. Hmmm. Maybe
5962 if we split the unwind bits up between the relocations which
5963 denote the entry and exit points. */
5964 if (last_call_info->start_symbol != NULL)
5965 {
5966 char *where = frag_more (0);
5967
5968 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5969 NULL, (offsetT) 0, NULL,
5970 0, R_HPPA_ENTRY, e_fsel, 0, 0,
5971 (int *) &last_call_info->ci_unwind.descriptor);
5972 }
5973#endif
5974}
5975
5976/* Handle a .EQU pseudo-op. */
5977
5978static void
5979pa_equ (reg)
5980 int reg;
5981{
5982 label_symbol_struct *label_symbol = pa_get_label ();
5983 symbolS *symbol;
5984
5985 if (label_symbol)
5986 {
5987 symbol = label_symbol->lss_label;
5988 if (reg)
5989 S_SET_VALUE (symbol, pa_parse_number (&input_line_pointer, 0));
5990 else
5991 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
5992 S_SET_SEGMENT (symbol, bfd_abs_section_ptr);
5993 }
5994 else
5995 {
5996 if (reg)
5997 as_bad (_(".REG must use a label"));
5998 else
5999 as_bad (_(".EQU must use a label"));
6000 }
6001
6002 pa_undefine_label ();
6003 demand_empty_rest_of_line ();
6004}
6005
6006/* Helper function. Does processing for the end of a function. This
6007 usually involves creating some relocations or building special
6008 symbols to mark the end of the function. */
6009
6010static void
6011process_exit ()
6012{
6013 char *where;
6014
6015 where = frag_more (0);
6016
6017#ifdef OBJ_ELF
6018 /* Mark the end of the function, stuff away the location of the frag
6019 for the end of the function, and finally call pa_build_unwind_subspace
6020 to add an entry in the unwind table. */
6021 hppa_elf_mark_end_of_function ();
6022 pa_build_unwind_subspace (last_call_info);
6023#else
6024 /* SOM defers building of unwind descriptors until the link phase.
6025 The assembler is responsible for creating an R_ENTRY relocation
6026 to mark the beginning of a region and hold the unwind bits, and
6027 for creating an R_EXIT relocation to mark the end of the region.
6028
6029 FIXME. ELF should be using the same conventions! The problem
6030 is an unwind requires too much relocation space. Hmmm. Maybe
6031 if we split the unwind bits up between the relocations which
6032 denote the entry and exit points. */
6033 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
6034 NULL, (offsetT) 0,
6035 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0,
6036 (int *) &last_call_info->ci_unwind.descriptor + 1);
6037#endif
6038}
6039
6040/* Process a .EXIT pseudo-op. */
6041
6042static void
6043pa_exit (unused)
6044 int unused;
6045{
49863f82 6046#ifdef OBJ_SOM
252b5132
RH		 6047 /* We must have a valid space and subspace. */
6048 pa_check_current_space_and_subspace ();
49863f82 6049#endif
252b5132
RH		 6050
6051 if (!within_procedure)
6052 as_bad (_(".EXIT must appear within a procedure"));
6053 else
6054 {
6055 if (!callinfo_found)
6056 as_bad (_("Missing .callinfo"));
6057 else
6058 {
6059 if (!within_entry_exit)
6060 as_bad (_("No .ENTRY for this .EXIT"));
6061 else
6062 {
6063 within_entry_exit = FALSE;
6064 process_exit ();
6065 }
6066 }
6067 }
6068 demand_empty_rest_of_line ();
6069}
6070
6071/* Process a .EXPORT directive. This makes functions external
6072 and provides information such as argument relocation entries
6073 to callers. */
6074
6075static void
6076pa_export (unused)
6077 int unused;
6078{
6079 char *name, c, *p;
6080 symbolS *symbol;
6081
6082 name = input_line_pointer;
6083 c = get_symbol_end ();
6084 /* Make sure the given symbol exists. */
6085 if ((symbol = symbol_find_or_make (name)) == NULL)
6086 {
6087 as_bad (_("Cannot define export symbol: %s\n"), name);
6088 p = input_line_pointer;
6089 *p = c;
6090 input_line_pointer++;
6091 }
6092 else
6093 {
6094 /* OK. Set the external bits and process argument relocations. */
6095 S_SET_EXTERNAL (symbol);
6096 p = input_line_pointer;
6097 *p = c;
6098 if (!is_end_of_statement ())
6099 {
6100 input_line_pointer++;
6101 pa_type_args (symbol, 1);
6102 }
6103 }
6104
6105 demand_empty_rest_of_line ();
6106}
6107
6108/* Helper function to process arguments to a .EXPORT pseudo-op. */
6109
6110static void
6111pa_type_args (symbolP, is_export)
6112 symbolS *symbolP;
6113 int is_export;
6114{
6115 char *name, c, *p;
6116 unsigned int temp, arg_reloc;
6117 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
a0f75b47 6118 obj_symbol_type *symbol = (obj_symbol_type *) symbol_get_bfdsym (symbolP);
252b5132
RH		 6119
6120 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
6121
6122 {
6123 input_line_pointer += 8;
a0f75b47 6124 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 6125 S_SET_SEGMENT (symbolP, bfd_abs_section_ptr);
6126 type = SYMBOL_TYPE_ABSOLUTE;
6127 }
6128 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
6129 {
6130 input_line_pointer += 4;
6131 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
6132 instead one should be IMPORTing/EXPORTing ENTRY types.
6133
6134 Complain if one tries to EXPORT a CODE type since that's never
6135 done. Both GCC and HP C still try to IMPORT CODE types, so
6136 silently fix them to be ENTRY types. */
a0f75b47 6137 if (S_IS_FUNCTION (symbolP))
252b5132
RH		 6138 {
6139 if (is_export)
a0f75b47
ILT		 6140 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
6141 S_GET_NAME (symbolP));
252b5132 6142
a0f75b47 6143 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6144 type = SYMBOL_TYPE_ENTRY;
6145 }
6146 else
6147 {
a0f75b47 6148 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 6149 type = SYMBOL_TYPE_CODE;
6150 }
6151 }
6152 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
6153 {
6154 input_line_pointer += 4;
a0f75b47 6155 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
7acbfc6b 6156 symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT;
252b5132
RH		 6157 type = SYMBOL_TYPE_DATA;
6158 }
6159 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
6160 {
6161 input_line_pointer += 5;
a0f75b47 6162 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6163 type = SYMBOL_TYPE_ENTRY;
6164 }
6165 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
6166 {
6167 input_line_pointer += 9;
a0f75b47 6168 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6169 type = SYMBOL_TYPE_MILLICODE;
6170 }
6171 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
6172 {
6173 input_line_pointer += 6;
a0f75b47 6174 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 6175 type = SYMBOL_TYPE_PLABEL;
6176 }
6177 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
6178 {
6179 input_line_pointer += 8;
a0f75b47 6180 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6181 type = SYMBOL_TYPE_PRI_PROG;
6182 }
6183 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
6184 {
6185 input_line_pointer += 8;
a0f75b47 6186 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6187 type = SYMBOL_TYPE_SEC_PROG;
6188 }
6189
6190 /* SOM requires much more information about symbol types
6191 than BFD understands. This is how we get this information
6192 to the SOM BFD backend. */
6193#ifdef obj_set_symbol_type
a0f75b47 6194 obj_set_symbol_type (symbol_get_bfdsym (symbolP), (int) type);
252b5132
RH		 6195#endif
6196
6197 /* Now that the type of the exported symbol has been handled,
6198 handle any argument relocation information. */
6199 while (!is_end_of_statement ())
6200 {
6201 if (*input_line_pointer == ',')
6202 input_line_pointer++;
6203 name = input_line_pointer;
6204 c = get_symbol_end ();
6205 /* Argument sources. */
6206 if ((strncasecmp (name, "argw", 4) == 0))
6207 {
6208 p = input_line_pointer;
6209 *p = c;
6210 input_line_pointer++;
6211 temp = atoi (name + 4);
6212 name = input_line_pointer;
6213 c = get_symbol_end ();
6214 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
49863f82 6215#ifdef OBJ_SOM
252b5132 6216 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
49863f82 6217#endif
252b5132
RH		 6218 *input_line_pointer = c;
6219 }
6220 /* The return value. */
6221 else if ((strncasecmp (name, "rtnval", 6)) == 0)
6222 {
6223 p = input_line_pointer;
6224 *p = c;
6225 input_line_pointer++;
6226 name = input_line_pointer;
6227 c = get_symbol_end ();
6228 arg_reloc = pa_build_arg_reloc (name);
49863f82 6229#ifdef OBJ_SOM
252b5132 6230 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
49863f82 6231#endif
252b5132
RH		 6232 *input_line_pointer = c;
6233 }
6234 /* Privelege level. */
6235 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
6236 {
6237 p = input_line_pointer;
6238 *p = c;
6239 input_line_pointer++;
6240 temp = atoi (input_line_pointer);
49863f82 6241#ifdef OBJ_SOM
252b5132 6242 symbol->tc_data.ap.hppa_priv_level = temp;
49863f82 6243#endif
252b5132
RH		 6244 c = get_symbol_end ();
6245 *input_line_pointer = c;
6246 }
6247 else
6248 {
6249 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name);
6250 p = input_line_pointer;
6251 *p = c;
6252 }
6253 if (!is_end_of_statement ())
6254 input_line_pointer++;
6255 }
6256}
6257
6258/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
6259 assembly file must either be defined in the assembly file, or
6260 explicitly IMPORTED from another. */
6261
6262static void
6263pa_import (unused)
6264 int unused;
6265{
6266 char *name, c, *p;
6267 symbolS *symbol;
6268
6269 name = input_line_pointer;
6270 c = get_symbol_end ();
6271
6272 symbol = symbol_find (name);
6273 /* Ugh. We might be importing a symbol defined earlier in the file,
6274 in which case all the code below will really screw things up
6275 (set the wrong segment, symbol flags & type, etc). */
6276 if (symbol == NULL || !S_IS_DEFINED (symbol))
6277 {
6278 symbol = symbol_find_or_make (name);
6279 p = input_line_pointer;
6280 *p = c;
6281
6282 if (!is_end_of_statement ())
6283 {
6284 input_line_pointer++;
6285 pa_type_args (symbol, 0);
6286 }
6287 else
6288 {
6289 /* Sigh. To be compatable with the HP assembler and to help
6290 poorly written assembly code, we assign a type based on
6291 the the current segment. Note only BSF_FUNCTION really
6292 matters, we do not need to set the full SYMBOL_TYPE_* info. */
6293 if (now_seg == text_section)
a0f75b47 6294 symbol_get_bfdsym (symbol)->flags |= BSF_FUNCTION;
252b5132
RH		 6295
6296 /* If the section is undefined, then the symbol is undefined
6297 Since this is an import, leave the section undefined. */
6298 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
6299 }
6300 }
6301 else
6302 {
6303 /* The symbol was already defined. Just eat everything up to
6304 the end of the current statement. */
6305 while (!is_end_of_statement ())
6306 input_line_pointer++;
6307 }
6308
6309 demand_empty_rest_of_line ();
6310}
6311
6312/* Handle a .LABEL pseudo-op. */
6313
6314static void
6315pa_label (unused)
6316 int unused;
6317{
6318 char *name, c, *p;
6319
6320 name = input_line_pointer;
6321 c = get_symbol_end ();
6322
6323 if (strlen (name) > 0)
6324 {
6325 colon (name);
6326 p = input_line_pointer;
6327 *p = c;
6328 }
6329 else
6330 {
6331 as_warn (_("Missing label name on .LABEL"));
6332 }
6333
6334 if (!is_end_of_statement ())
6335 {
6336 as_warn (_("extra .LABEL arguments ignored."));
6337 ignore_rest_of_line ();
6338 }
6339 demand_empty_rest_of_line ();
6340}
6341
6342/* Handle a .LEAVE pseudo-op. This is not supported yet. */
6343
6344static void
6345pa_leave (unused)
6346 int unused;
6347{
49863f82 6348#ifdef OBJ_SOM
252b5132
RH		 6349 /* We must have a valid space and subspace. */
6350 pa_check_current_space_and_subspace ();
49863f82 6351#endif
252b5132
RH		 6352
6353 as_bad (_("The .LEAVE pseudo-op is not supported"));
6354 demand_empty_rest_of_line ();
6355}
6356
6357/* Handle a .LEVEL pseudo-op. */
6358
6359static void
6360pa_level (unused)
6361 int unused;
6362{
6363 char *level;
6364
6365 level = input_line_pointer;
6366 if (strncmp (level, "1.0", 3) == 0)
6367 {
6368 input_line_pointer += 3;
6369 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
6370 as_warn (_("could not set architecture and machine"));
6371 }
6372 else if (strncmp (level, "1.1", 3) == 0)
6373 {
6374 input_line_pointer += 3;
6375 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 11))
6376 as_warn (_("could not set architecture and machine"));
6377 }
46031ca9
JL		 6378 else if (strncmp (level, "2.0w", 4) == 0)
6379 {
6380 input_line_pointer += 4;
6381 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 25))
6382 as_warn (_("could not set architecture and machine"));
6383 }
252b5132
RH		 6384 else if (strncmp (level, "2.0", 3) == 0)
6385 {
6386 input_line_pointer += 3;
6387 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 20))
6388 as_warn (_("could not set architecture and machine"));
6389 }
6390 else
6391 {
6392 as_bad (_("Unrecognized .LEVEL argument\n"));
6393 ignore_rest_of_line ();
6394 }
6395 demand_empty_rest_of_line ();
6396}
6397
6398/* Handle a .ORIGIN pseudo-op. */
6399
6400static void
6401pa_origin (unused)
6402 int unused;
6403{
49863f82 6404#ifdef OBJ_SOM
252b5132
RH		 6405 /* We must have a valid space and subspace. */
6406 pa_check_current_space_and_subspace ();
49863f82 6407#endif
252b5132
RH		 6408
6409 s_org (0);
6410 pa_undefine_label ();
6411}
6412
6413/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
6414 is for static functions. FIXME. Should share more code with .EXPORT. */
6415
6416static void
6417pa_param (unused)
6418 int unused;
6419{
6420 char *name, c, *p;
6421 symbolS *symbol;
6422
6423 name = input_line_pointer;
6424 c = get_symbol_end ();
6425
6426 if ((symbol = symbol_find_or_make (name)) == NULL)
6427 {
6428 as_bad (_("Cannot define static symbol: %s\n"), name);
6429 p = input_line_pointer;
6430 *p = c;
6431 input_line_pointer++;
6432 }
6433 else
6434 {
6435 S_CLEAR_EXTERNAL (symbol);
6436 p = input_line_pointer;
6437 *p = c;
6438 if (!is_end_of_statement ())
6439 {
6440 input_line_pointer++;
6441 pa_type_args (symbol, 0);
6442 }
6443 }
6444
6445 demand_empty_rest_of_line ();
6446}
6447
6448/* Handle a .PROC pseudo-op. It is used to mark the beginning
6449 of a procedure from a syntatical point of view. */
6450
6451static void
6452pa_proc (unused)
6453 int unused;
6454{
6455 struct call_info *call_info;
6456
49863f82 6457#ifdef OBJ_SOM
252b5132
RH		 6458 /* We must have a valid space and subspace. */
6459 pa_check_current_space_and_subspace ();
49863f82 6460#endif
252b5132
RH		 6461
6462 if (within_procedure)
6463 as_fatal (_("Nested procedures"));
6464
6465 /* Reset global variables for new procedure. */
6466 callinfo_found = FALSE;
6467 within_procedure = TRUE;
6468
6469 /* Create another call_info structure. */
6470 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
6471
6472 if (!call_info)
6473 as_fatal (_("Cannot allocate unwind descriptor\n"));
6474
6475 memset (call_info, 0, sizeof (struct call_info));
6476
6477 call_info->ci_next = NULL;
6478
6479 if (call_info_root == NULL)
6480 {
6481 call_info_root = call_info;
6482 last_call_info = call_info;
6483 }
6484 else
6485 {
6486 last_call_info->ci_next = call_info;
6487 last_call_info = call_info;
6488 }
6489
6490 /* set up defaults on call_info structure */
6491
6492 call_info->ci_unwind.descriptor.cannot_unwind = 0;
6493 call_info->ci_unwind.descriptor.region_desc = 1;
6494 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
6495
6496 /* If we got a .PROC pseudo-op, we know that the function is defined
6497 locally. Make sure it gets into the symbol table. */
6498 {
6499 label_symbol_struct *label_symbol = pa_get_label ();
6500
6501 if (label_symbol)
6502 {
6503 if (label_symbol->lss_label)
6504 {
6505 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47 6506 symbol_get_bfdsym (label_symbol->lss_label)->flags |= BSF_FUNCTION;
252b5132
RH		 6507 }
6508 else
6509 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6510 }
6511 else
6512 last_call_info->start_symbol = NULL;
6513 }
6514
6515 demand_empty_rest_of_line ();
6516}
6517
6518/* Process the syntatical end of a procedure. Make sure all the
6519 appropriate pseudo-ops were found within the procedure. */
6520
6521static void
6522pa_procend (unused)
6523 int unused;
6524{
6525
49863f82 6526#ifdef OBJ_SOM
252b5132
RH		 6527 /* We must have a valid space and subspace. */
6528 pa_check_current_space_and_subspace ();
49863f82 6529#endif
252b5132
RH		 6530
6531 /* If we are within a procedure definition, make sure we've
6532 defined a label for the procedure; handle case where the
6533 label was defined after the .PROC directive.
6534
6535 Note there's not need to diddle with the segment or fragment
6536 for the label symbol in this case. We have already switched
6537 into the new $CODE$ subspace at this point. */
6538 if (within_procedure && last_call_info->start_symbol == NULL)
6539 {
6540 label_symbol_struct *label_symbol = pa_get_label ();
6541
6542 if (label_symbol)
6543 {
6544 if (label_symbol->lss_label)
6545 {
6546 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47
ILT		 6547 symbol_get_bfdsym (label_symbol->lss_label)->flags
6548 |= BSF_FUNCTION;
252b5132
RH		 6549#ifdef OBJ_SOM
6550 /* Also handle allocation of a fixup to hold the unwind
6551 information when the label appears after the proc/procend. */
6552 if (within_entry_exit)
6553 {
6554 char *where = frag_more (0);
6555
6556 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
6557 NULL, (offsetT) 0, NULL,
6558 0, R_HPPA_ENTRY, e_fsel, 0, 0,
6559 (int *) &last_call_info->ci_unwind.descriptor);
6560 }
6561#endif
6562 }
6563 else
6564 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6565 }
6566 else
6567 as_bad (_("Missing function name for .PROC"));
6568 }
6569
6570 if (!within_procedure)
6571 as_bad (_("misplaced .procend"));
6572
6573 if (!callinfo_found)
6574 as_bad (_("Missing .callinfo for this procedure"));
6575
6576 if (within_entry_exit)
6577 as_bad (_("Missing .EXIT for a .ENTRY"));
6578
6579#ifdef OBJ_ELF
6580 /* ELF needs to mark the end of each function so that it can compute
6581 the size of the function (apparently its needed in the symbol table). */
6582 hppa_elf_mark_end_of_function ();
6583#endif
6584
6585 within_procedure = FALSE;
6586 demand_empty_rest_of_line ();
6587 pa_undefine_label ();
6588}
6589
49863f82
JL		 6590/* If VALUE is an exact power of two between zero and 2^31, then
6591 return log2 (VALUE). Else return -1. */
6592
6593static int
6594log2 (value)
6595 int value;
6596{
6597 int shift = 0;
6598
6599 while ((1 << shift) != value && shift < 32)
6600 shift++;
6601
6602 if (shift >= 32)
6603 return -1;
6604 else
6605 return shift;
6606}
6607
6608
6609#ifdef OBJ_SOM
6610/* Check to make sure we have a valid space and subspace. */
6611
6612static void
6613pa_check_current_space_and_subspace ()
6614{
6615 if (current_space == NULL)
6616 as_fatal (_("Not in a space.\n"));
6617
6618 if (current_subspace == NULL)
6619 as_fatal (_("Not in a subspace.\n"));
6620}
6621
252b5132
RH		 6622/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
6623 then create a new space entry to hold the information specified
6624 by the parameters to the .SPACE directive. */
6625
6626static sd_chain_struct *
6627pa_parse_space_stmt (space_name, create_flag)
6628 char *space_name;
6629 int create_flag;
6630{
6631 char *name, *ptemp, c;
6632 char loadable, defined, private, sort;
6633 int spnum, temp;
6634 asection *seg = NULL;
6635 sd_chain_struct *space;
6636
6637 /* load default values */
6638 spnum = 0;
6639 sort = 0;
6640 loadable = TRUE;
6641 defined = TRUE;
6642 private = FALSE;
6643 if (strcmp (space_name, "$TEXT$") == 0)
6644 {
6645 seg = pa_def_spaces[0].segment;
6646 defined = pa_def_spaces[0].defined;
6647 private = pa_def_spaces[0].private;
6648 sort = pa_def_spaces[0].sort;
6649 spnum = pa_def_spaces[0].spnum;
6650 }
6651 else if (strcmp (space_name, "$PRIVATE$") == 0)
6652 {
6653 seg = pa_def_spaces[1].segment;
6654 defined = pa_def_spaces[1].defined;
6655 private = pa_def_spaces[1].private;
6656 sort = pa_def_spaces[1].sort;
6657 spnum = pa_def_spaces[1].spnum;
6658 }
6659
6660 if (!is_end_of_statement ())
6661 {
6662 print_errors = FALSE;
6663 ptemp = input_line_pointer + 1;
6664 /* First see if the space was specified as a number rather than
6665 as a name. According to the PA assembly manual the rest of
6666 the line should be ignored. */
6667 temp = pa_parse_number (&ptemp, 0);
6668 if (temp >= 0)
6669 {
6670 spnum = temp;
6671 input_line_pointer = ptemp;
6672 }
6673 else
6674 {
6675 while (!is_end_of_statement ())
6676 {
6677 input_line_pointer++;
6678 name = input_line_pointer;
6679 c = get_symbol_end ();
6680 if ((strncasecmp (name, "spnum", 5) == 0))
6681 {
6682 *input_line_pointer = c;
6683 input_line_pointer++;
6684 spnum = get_absolute_expression ();
6685 }
6686 else if ((strncasecmp (name, "sort", 4) == 0))
6687 {
6688 *input_line_pointer = c;
6689 input_line_pointer++;
6690 sort = get_absolute_expression ();
6691 }
6692 else if ((strncasecmp (name, "unloadable", 10) == 0))
6693 {
6694 *input_line_pointer = c;
6695 loadable = FALSE;
6696 }
6697 else if ((strncasecmp (name, "notdefined", 10) == 0))
6698 {
6699 *input_line_pointer = c;
6700 defined = FALSE;
6701 }
6702 else if ((strncasecmp (name, "private", 7) == 0))
6703 {
6704 *input_line_pointer = c;
6705 private = TRUE;
6706 }
6707 else
6708 {
6709 as_bad (_("Invalid .SPACE argument"));
6710 *input_line_pointer = c;
6711 if (!is_end_of_statement ())
6712 input_line_pointer++;
6713 }
6714 }
6715 }
6716 print_errors = TRUE;
6717 }
6718
6719 if (create_flag && seg == NULL)
6720 seg = subseg_new (space_name, 0);
6721
6722 /* If create_flag is nonzero, then create the new space with
6723 the attributes computed above. Else set the values in
6724 an already existing space -- this can only happen for
6725 the first occurence of a built-in space. */
6726 if (create_flag)
6727 space = create_new_space (space_name, spnum, loadable, defined,
6728 private, sort, seg, 1);
6729 else
6730 {
6731 space = is_defined_space (space_name);
6732 SPACE_SPNUM (space) = spnum;
6733 SPACE_DEFINED (space) = defined & 1;
6734 SPACE_USER_DEFINED (space) = 1;
6735 }
6736
6737#ifdef obj_set_section_attributes
6738 obj_set_section_attributes (seg, defined, private, sort, spnum);
6739#endif
6740
6741 return space;
6742}
6743
6744/* Handle a .SPACE pseudo-op; this switches the current space to the
6745 given space, creating the new space if necessary. */
6746
6747static void
6748pa_space (unused)
6749 int unused;
6750{
6751 char *name, c, *space_name, *save_s;
6752 int temp;
6753 sd_chain_struct *sd_chain;
6754
6755 if (within_procedure)
6756 {
6757 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6758 ignore_rest_of_line ();
6759 }
6760 else
6761 {
6762 /* Check for some of the predefined spaces. FIXME: most of the code
6763 below is repeated several times, can we extract the common parts
6764 and place them into a subroutine or something similar? */
6765 /* FIXME Is this (and the next IF stmt) really right?
6766 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6767 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
6768 {
6769 input_line_pointer += 6;
6770 sd_chain = is_defined_space ("$TEXT$");
6771 if (sd_chain == NULL)
6772 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
6773 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6774 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
6775
6776 current_space = sd_chain;
6777 subseg_set (text_section, sd_chain->sd_last_subseg);
6778 current_subspace
6779 = pa_subsegment_to_subspace (text_section,
6780 sd_chain->sd_last_subseg);
6781 demand_empty_rest_of_line ();
6782 return;
6783 }
6784 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
6785 {
6786 input_line_pointer += 9;
6787 sd_chain = is_defined_space ("$PRIVATE$");
6788 if (sd_chain == NULL)
6789 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
6790 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6791 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
6792
6793 current_space = sd_chain;
6794 subseg_set (data_section, sd_chain->sd_last_subseg);
6795 current_subspace
6796 = pa_subsegment_to_subspace (data_section,
6797 sd_chain->sd_last_subseg);
6798 demand_empty_rest_of_line ();
6799 return;
6800 }
6801 if (!strncasecmp (input_line_pointer,
6802 GDB_DEBUG_SPACE_NAME,
6803 strlen (GDB_DEBUG_SPACE_NAME)))
6804 {
6805 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
6806 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
6807 if (sd_chain == NULL)
6808 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
6809 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6810 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
6811
6812 current_space = sd_chain;
6813
6814 {
6815 asection *gdb_section
6816 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
6817
6818 subseg_set (gdb_section, sd_chain->sd_last_subseg);
6819 current_subspace
6820 = pa_subsegment_to_subspace (gdb_section,
6821 sd_chain->sd_last_subseg);
6822 }
6823 demand_empty_rest_of_line ();
6824 return;
6825 }
6826
6827 /* It could be a space specified by number. */
6828 print_errors = 0;
6829 save_s = input_line_pointer;
6830 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
6831 {
6832 if ((sd_chain = pa_find_space_by_number (temp)))
6833 {
6834 current_space = sd_chain;
6835
6836 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
6837 current_subspace
6838 = pa_subsegment_to_subspace (sd_chain->sd_seg,
6839 sd_chain->sd_last_subseg);
6840 demand_empty_rest_of_line ();
6841 return;
6842 }
6843 }
6844
6845 /* Not a number, attempt to create a new space. */
6846 print_errors = 1;
6847 input_line_pointer = save_s;
6848 name = input_line_pointer;
6849 c = get_symbol_end ();
6850 space_name = xmalloc (strlen (name) + 1);
6851 strcpy (space_name, name);
6852 *input_line_pointer = c;
6853
6854 sd_chain = pa_parse_space_stmt (space_name, 1);
6855 current_space = sd_chain;
6856
6857 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
6858 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
6859 sd_chain->sd_last_subseg);
6860 demand_empty_rest_of_line ();
6861 }
6862}
6863
6864/* Switch to a new space. (I think). FIXME. */
6865
6866static void
6867pa_spnum (unused)
6868 int unused;
6869{
6870 char *name;
6871 char c;
6872 char *p;
6873 sd_chain_struct *space;
6874
6875 name = input_line_pointer;
6876 c = get_symbol_end ();
6877 space = is_defined_space (name);
6878 if (space)
6879 {
6880 p = frag_more (4);
6881 md_number_to_chars (p, SPACE_SPNUM (space), 4);
6882 }
6883 else
6884 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name);
6885
6886 *input_line_pointer = c;
6887 demand_empty_rest_of_line ();
6888}
6889
252b5132
RH		 6890/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6891 given subspace, creating the new subspace if necessary.
6892
6893 FIXME. Should mirror pa_space more closely, in particular how
6894 they're broken up into subroutines. */
6895
6896static void
6897pa_subspace (create_new)
6898 int create_new;
6899{
49863f82 6900 char *name, *ss_name, c;
252b5132
RH		 6901 char loadable, code_only, common, dup_common, zero, sort;
6902 int i, access, space_index, alignment, quadrant, applicable, flags;
6903 sd_chain_struct *space;
6904 ssd_chain_struct *ssd;
6905 asection *section;
6906
6907 if (current_space == NULL)
6908 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6909
6910 if (within_procedure)
6911 {
6912 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6913 ignore_rest_of_line ();
6914 }
6915 else
6916 {
6917 name = input_line_pointer;
6918 c = get_symbol_end ();
6919 ss_name = xmalloc (strlen (name) + 1);
6920 strcpy (ss_name, name);
6921 *input_line_pointer = c;
6922
6923 /* Load default values. */
6924 sort = 0;
6925 access = 0x7f;
6926 loadable = 1;
6927 common = 0;
6928 dup_common = 0;
6929 code_only = 0;
6930 zero = 0;
6931 space_index = ~0;
6932 alignment = 1;
6933 quadrant = 0;
252b5132
RH		 6934
6935 space = current_space;
6936 if (create_new)
6937 ssd = NULL;
6938 else
6939 ssd = is_defined_subspace (ss_name);
6940 /* Allow user to override the builtin attributes of subspaces. But
6941 only allow the attributes to be changed once! */
6942 if (ssd && SUBSPACE_DEFINED (ssd))
6943 {
6944 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
6945 current_subspace = ssd;
6946 if (!is_end_of_statement ())
6947 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6948 demand_empty_rest_of_line ();
6949 return;
6950 }
6951 else
6952 {
6953 /* A new subspace. Load default values if it matches one of
6954 the builtin subspaces. */
6955 i = 0;
6956 while (pa_def_subspaces[i].name)
6957 {
6958 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
6959 {
6960 loadable = pa_def_subspaces[i].loadable;
6961 common = pa_def_subspaces[i].common;
6962 dup_common = pa_def_subspaces[i].dup_common;
6963 code_only = pa_def_subspaces[i].code_only;
6964 zero = pa_def_subspaces[i].zero;
6965 space_index = pa_def_subspaces[i].space_index;
6966 alignment = pa_def_subspaces[i].alignment;
6967 quadrant = pa_def_subspaces[i].quadrant;
6968 access = pa_def_subspaces[i].access;
6969 sort = pa_def_subspaces[i].sort;
252b5132
RH		 6970 break;
6971 }
6972 i++;
6973 }
6974 }
6975
6976 /* We should be working with a new subspace now. Fill in
6977 any information as specified by the user. */
6978 if (!is_end_of_statement ())
6979 {
6980 input_line_pointer++;
6981 while (!is_end_of_statement ())
6982 {
6983 name = input_line_pointer;
6984 c = get_symbol_end ();
6985 if ((strncasecmp (name, "quad", 4) == 0))
6986 {
6987 *input_line_pointer = c;
6988 input_line_pointer++;
6989 quadrant = get_absolute_expression ();
6990 }
6991 else if ((strncasecmp (name, "align", 5) == 0))
6992 {
6993 *input_line_pointer = c;
6994 input_line_pointer++;
6995 alignment = get_absolute_expression ();
6996 if (log2 (alignment) == -1)
6997 {
6998 as_bad (_("Alignment must be a power of 2"));
6999 alignment = 1;
7000 }
7001 }
7002 else if ((strncasecmp (name, "access", 6) == 0))
7003 {
7004 *input_line_pointer = c;
7005 input_line_pointer++;
7006 access = get_absolute_expression ();
7007 }
7008 else if ((strncasecmp (name, "sort", 4) == 0))
7009 {
7010 *input_line_pointer = c;
7011 input_line_pointer++;
7012 sort = get_absolute_expression ();
7013 }
7014 else if ((strncasecmp (name, "code_only", 9) == 0))
7015 {
7016 *input_line_pointer = c;
7017 code_only = 1;
7018 }
7019 else if ((strncasecmp (name, "unloadable", 10) == 0))
7020 {
7021 *input_line_pointer = c;
7022 loadable = 0;
7023 }
7024 else if ((strncasecmp (name, "common", 6) == 0))
7025 {
7026 *input_line_pointer = c;
7027 common = 1;
7028 }
7029 else if ((strncasecmp (name, "dup_comm", 8) == 0))
7030 {
7031 *input_line_pointer = c;
7032 dup_common = 1;
7033 }
7034 else if ((strncasecmp (name, "zero", 4) == 0))
7035 {
7036 *input_line_pointer = c;
7037 zero = 1;
7038 }
7039 else if ((strncasecmp (name, "first", 5) == 0))
7040 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
7041 else
7042 as_bad (_("Invalid .SUBSPACE argument"));
7043 if (!is_end_of_statement ())
7044 input_line_pointer++;
7045 }
7046 }
7047
7048 /* Compute a reasonable set of BFD flags based on the information
7049 in the .subspace directive. */
7050 applicable = bfd_applicable_section_flags (stdoutput);
7051 flags = 0;
7052 if (loadable)
7053 flags |= (SEC_ALLOC | SEC_LOAD);
7054 if (code_only)
7055 flags |= SEC_CODE;
7056 if (common || dup_common)
7057 flags |= SEC_IS_COMMON;
7058
7059 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
7060
7061 /* This is a zero-filled subspace (eg BSS). */
7062 if (zero)
7063 flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
7064
7065 applicable &= flags;
7066
7067 /* If this is an existing subspace, then we want to use the
7068 segment already associated with the subspace.
7069
7070 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
7071 lots of sections. It might be a problem in the PA ELF
7072 code, I do not know yet. For now avoid creating anything
7073 but the "standard" sections for ELF. */
7074 if (create_new)
7075 section = subseg_force_new (ss_name, 0);
7076 else if (ssd)
7077 section = ssd->ssd_seg;
252b5132
RH		 7078 else
7079 section = subseg_new (ss_name, 0);
7080
7081 if (zero)
7082 seg_info (section)->bss = 1;
7083
7084 /* Now set the flags. */
7085 bfd_set_section_flags (stdoutput, section, applicable);
7086
7087 /* Record any alignment request for this section. */
7088 record_alignment (section, log2 (alignment));
7089
7090 /* Set the starting offset for this section. */
7091 bfd_set_section_vma (stdoutput, section,
7092 pa_subspace_start (space, quadrant));
7093
7094 /* Now that all the flags are set, update an existing subspace,
7095 or create a new one. */
7096 if (ssd)
7097
7098 current_subspace = update_subspace (space, ss_name, loadable,
7099 code_only, common, dup_common,
7100 sort, zero, access, space_index,
7101 alignment, quadrant,
7102 section);
7103 else
7104 current_subspace = create_new_subspace (space, ss_name, loadable,
7105 code_only, common,
7106 dup_common, zero, sort,
7107 access, space_index,
7108 alignment, quadrant, section);
7109
7110 demand_empty_rest_of_line ();
7111 current_subspace->ssd_seg = section;
7112 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
7113 }
7114 SUBSPACE_DEFINED (current_subspace) = 1;
7115}
7116
7117
7118/* Create default space and subspace dictionaries. */
7119
7120static void
7121pa_spaces_begin ()
7122{
7123 int i;
7124
7125 space_dict_root = NULL;
7126 space_dict_last = NULL;
7127
7128 i = 0;
7129 while (pa_def_spaces[i].name)
7130 {
7131 char *name;
7132
7133 /* Pick the right name to use for the new section. */
49863f82 7134 name = pa_def_spaces[i].name;
252b5132
RH		 7135
7136 pa_def_spaces[i].segment = subseg_new (name, 0);
7137 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
7138 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
7139 pa_def_spaces[i].private, pa_def_spaces[i].sort,
7140 pa_def_spaces[i].segment, 0);
7141 i++;
7142 }
7143
7144 i = 0;
7145 while (pa_def_subspaces[i].name)
7146 {
7147 char *name;
7148 int applicable, subsegment;
7149 asection *segment = NULL;
7150 sd_chain_struct *space;
7151
7152 /* Pick the right name for the new section and pick the right
7153 subsegment number. */
49863f82
JL		 7154 name = pa_def_subspaces[i].name;
7155 subsegment = 0;
252b5132
RH		 7156
7157 /* Create the new section. */
7158 segment = subseg_new (name, subsegment);
7159
7160
7161 /* For SOM we want to replace the standard .text, .data, and .bss
7162 sections with our own. We also want to set BFD flags for
7163 all the built-in subspaces. */
49863f82 7164 if (!strcmp (pa_def_subspaces[i].name, "$CODE$"))
252b5132
RH		 7165 {
7166 text_section = segment;
7167 applicable = bfd_applicable_section_flags (stdoutput);
7168 bfd_set_section_flags (stdoutput, segment,
7169 applicable & (SEC_ALLOC | SEC_LOAD
7170 | SEC_RELOC | SEC_CODE
7171 | SEC_READONLY
7172 | SEC_HAS_CONTENTS));
7173 }
49863f82 7174 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$"))
252b5132
RH		 7175 {
7176 data_section = segment;
7177 applicable = bfd_applicable_section_flags (stdoutput);
7178 bfd_set_section_flags (stdoutput, segment,
7179 applicable & (SEC_ALLOC | SEC_LOAD
7180 | SEC_RELOC
7181 | SEC_HAS_CONTENTS));
7182
7183
7184 }
49863f82 7185 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$"))
252b5132
RH		 7186 {
7187 bss_section = segment;
7188 applicable = bfd_applicable_section_flags (stdoutput);
7189 bfd_set_section_flags (stdoutput, segment,
7190 applicable & SEC_ALLOC);
7191 }
49863f82 7192 else if (!strcmp (pa_def_subspaces[i].name, "$LIT$"))
252b5132
RH		 7193 {
7194 applicable = bfd_applicable_section_flags (stdoutput);
7195 bfd_set_section_flags (stdoutput, segment,
7196 applicable & (SEC_ALLOC | SEC_LOAD
7197 | SEC_RELOC
7198 | SEC_READONLY
7199 | SEC_HAS_CONTENTS));
7200 }
49863f82 7201 else if (!strcmp (pa_def_subspaces[i].name, "$MILLICODE$"))
252b5132
RH		 7202 {
7203 applicable = bfd_applicable_section_flags (stdoutput);
7204 bfd_set_section_flags (stdoutput, segment,
7205 applicable & (SEC_ALLOC | SEC_LOAD
7206 | SEC_RELOC
7207 | SEC_READONLY
7208 | SEC_HAS_CONTENTS));
7209 }
49863f82 7210 else if (!strcmp (pa_def_subspaces[i].name, "$UNWIND$"))
252b5132
RH		 7211 {
7212 applicable = bfd_applicable_section_flags (stdoutput);
7213 bfd_set_section_flags (stdoutput, segment,
7214 applicable & (SEC_ALLOC | SEC_LOAD
7215 | SEC_RELOC
7216 | SEC_READONLY
7217 | SEC_HAS_CONTENTS));
7218 }
7219
7220 /* Find the space associated with this subspace. */
7221 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
7222 def_space_index].segment);
7223 if (space == NULL)
7224 {
7225 as_fatal (_("Internal error: Unable to find containing space for %s."),
7226 pa_def_subspaces[i].name);
7227 }
7228
7229 create_new_subspace (space, name,
7230 pa_def_subspaces[i].loadable,
7231 pa_def_subspaces[i].code_only,
7232 pa_def_subspaces[i].common,
7233 pa_def_subspaces[i].dup_common,
7234 pa_def_subspaces[i].zero,
7235 pa_def_subspaces[i].sort,
7236 pa_def_subspaces[i].access,
7237 pa_def_subspaces[i].space_index,
7238 pa_def_subspaces[i].alignment,
7239 pa_def_subspaces[i].quadrant,
7240 segment);
7241 i++;
7242 }
7243}
7244
7245
7246
7247/* Create a new space NAME, with the appropriate flags as defined
7248 by the given parameters. */
7249
7250static sd_chain_struct *
7251create_new_space (name, spnum, loadable, defined, private,
7252 sort, seg, user_defined)
7253 char *name;
7254 int spnum;
7255 int loadable;
7256 int defined;
7257 int private;
7258 int sort;
7259 asection *seg;
7260 int user_defined;
7261{
7262 sd_chain_struct *chain_entry;
7263
7264 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
7265 if (!chain_entry)
7266 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
7267 name);
7268
7269 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
7270 strcpy (SPACE_NAME (chain_entry), name);
7271 SPACE_DEFINED (chain_entry) = defined;
7272 SPACE_USER_DEFINED (chain_entry) = user_defined;
7273 SPACE_SPNUM (chain_entry) = spnum;
7274
7275 chain_entry->sd_seg = seg;
7276 chain_entry->sd_last_subseg = -1;
7277 chain_entry->sd_subspaces = NULL;
7278 chain_entry->sd_next = NULL;
7279
7280 /* Find spot for the new space based on its sort key. */
7281 if (!space_dict_last)
7282 space_dict_last = chain_entry;
7283
7284 if (space_dict_root == NULL)
7285 space_dict_root = chain_entry;
7286 else
7287 {
7288 sd_chain_struct *chain_pointer;
7289 sd_chain_struct *prev_chain_pointer;
7290
7291 chain_pointer = space_dict_root;
7292 prev_chain_pointer = NULL;
7293
7294 while (chain_pointer)
7295 {
7296 prev_chain_pointer = chain_pointer;
7297 chain_pointer = chain_pointer->sd_next;
7298 }
7299
7300 /* At this point we've found the correct place to add the new
7301 entry. So add it and update the linked lists as appropriate. */
7302 if (prev_chain_pointer)
7303 {
7304 chain_entry->sd_next = chain_pointer;
7305 prev_chain_pointer->sd_next = chain_entry;
7306 }
7307 else
7308 {
7309 space_dict_root = chain_entry;
7310 chain_entry->sd_next = chain_pointer;
7311 }
7312
7313 if (chain_entry->sd_next == NULL)
7314 space_dict_last = chain_entry;
7315 }
7316
7317 /* This is here to catch predefined spaces which do not get
7318 modified by the user's input. Another call is found at
7319 the bottom of pa_parse_space_stmt to handle cases where
7320 the user modifies a predefined space. */
7321#ifdef obj_set_section_attributes
7322 obj_set_section_attributes (seg, defined, private, sort, spnum);
7323#endif
7324
7325 return chain_entry;
7326}
7327
7328/* Create a new subspace NAME, with the appropriate flags as defined
7329 by the given parameters.
7330
7331 Add the new subspace to the subspace dictionary chain in numerical
7332 order as defined by the SORT entries. */
7333
7334static ssd_chain_struct *
7335create_new_subspace (space, name, loadable, code_only, common,
7336 dup_common, is_zero, sort, access, space_index,
7337 alignment, quadrant, seg)
7338 sd_chain_struct *space;
7339 char *name;
7340 int loadable, code_only, common, dup_common, is_zero;
7341 int sort;
7342 int access;
7343 int space_index;
7344 int alignment;
7345 int quadrant;
7346 asection *seg;
7347{
7348 ssd_chain_struct *chain_entry;
7349
7350 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
7351 if (!chain_entry)
7352 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name);
7353
7354 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
7355 strcpy (SUBSPACE_NAME (chain_entry), name);
7356
7357 /* Initialize subspace_defined. When we hit a .subspace directive
7358 we'll set it to 1 which "locks-in" the subspace attributes. */
7359 SUBSPACE_DEFINED (chain_entry) = 0;
7360
49863f82 7361 chain_entry->ssd_subseg = 0;
252b5132
RH		 7362 chain_entry->ssd_seg = seg;
7363 chain_entry->ssd_next = NULL;
7364
7365 /* Find spot for the new subspace based on its sort key. */
7366 if (space->sd_subspaces == NULL)
7367 space->sd_subspaces = chain_entry;
7368 else
7369 {
7370 ssd_chain_struct *chain_pointer;
7371 ssd_chain_struct *prev_chain_pointer;
7372
7373 chain_pointer = space->sd_subspaces;
7374 prev_chain_pointer = NULL;
7375
7376 while (chain_pointer)
7377 {
7378 prev_chain_pointer = chain_pointer;
7379 chain_pointer = chain_pointer->ssd_next;
7380 }
7381
7382 /* Now we have somewhere to put the new entry. Insert it and update
7383 the links. */
7384 if (prev_chain_pointer)
7385 {
7386 chain_entry->ssd_next = chain_pointer;
7387 prev_chain_pointer->ssd_next = chain_entry;
7388 }
7389 else
7390 {
7391 space->sd_subspaces = chain_entry;
7392 chain_entry->ssd_next = chain_pointer;
7393 }
7394 }
7395
7396#ifdef obj_set_subsection_attributes
7397 obj_set_subsection_attributes (seg, space->sd_seg, access,
7398 sort, quadrant);
7399#endif
7400
7401 return chain_entry;
7402}
7403
7404/* Update the information for the given subspace based upon the
7405 various arguments. Return the modified subspace chain entry. */
7406
7407static ssd_chain_struct *
7408update_subspace (space, name, loadable, code_only, common, dup_common, sort,
7409 zero, access, space_index, alignment, quadrant, section)
7410 sd_chain_struct *space;
7411 char *name;
7412 int loadable;
7413 int code_only;
7414 int common;
7415 int dup_common;
7416 int zero;
7417 int sort;
7418 int access;
7419 int space_index;
7420 int alignment;
7421 int quadrant;
7422 asection *section;
7423{
7424 ssd_chain_struct *chain_entry;
7425
7426 chain_entry = is_defined_subspace (name);
7427
7428#ifdef obj_set_subsection_attributes
7429 obj_set_subsection_attributes (section, space->sd_seg, access,
7430 sort, quadrant);
7431#endif
7432
7433 return chain_entry;
7434}
7435
7436/* Return the space chain entry for the space with the name NAME or
7437 NULL if no such space exists. */
7438
7439static sd_chain_struct *
7440is_defined_space (name)
7441 char *name;
7442{
7443 sd_chain_struct *chain_pointer;
7444
7445 for (chain_pointer = space_dict_root;
7446 chain_pointer;
7447 chain_pointer = chain_pointer->sd_next)
7448 {
7449 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
7450 return chain_pointer;
7451 }
7452
7453 /* No mapping from segment to space was found. Return NULL. */
7454 return NULL;
7455}
7456
7457/* Find and return the space associated with the given seg. If no mapping
7458 from the given seg to a space is found, then return NULL.
7459
7460 Unlike subspaces, the number of spaces is not expected to grow much,
7461 so a linear exhaustive search is OK here. */
7462
7463static sd_chain_struct *
7464pa_segment_to_space (seg)
7465 asection *seg;
7466{
7467 sd_chain_struct *space_chain;
7468
7469 /* Walk through each space looking for the correct mapping. */
7470 for (space_chain = space_dict_root;
7471 space_chain;
7472 space_chain = space_chain->sd_next)
7473 {
7474 if (space_chain->sd_seg == seg)
7475 return space_chain;
7476 }
7477
7478 /* Mapping was not found. Return NULL. */
7479 return NULL;
7480}
7481
7482/* Return the space chain entry for the subspace with the name NAME or
7483 NULL if no such subspace exists.
7484
7485 Uses a linear search through all the spaces and subspaces, this may
7486 not be appropriate if we ever being placing each function in its
7487 own subspace. */
7488
7489static ssd_chain_struct *
7490is_defined_subspace (name)
7491 char *name;
7492{
7493 sd_chain_struct *space_chain;
7494 ssd_chain_struct *subspace_chain;
7495
7496 /* Walk through each space. */
7497 for (space_chain = space_dict_root;
7498 space_chain;
7499 space_chain = space_chain->sd_next)
7500 {
7501 /* Walk through each subspace looking for a name which matches. */
7502 for (subspace_chain = space_chain->sd_subspaces;
7503 subspace_chain;
7504 subspace_chain = subspace_chain->ssd_next)
7505 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
7506 return subspace_chain;
7507 }
7508
7509 /* Subspace wasn't found. Return NULL. */
7510 return NULL;
7511}
7512
7513/* Find and return the subspace associated with the given seg. If no
7514 mapping from the given seg to a subspace is found, then return NULL.
7515
7516 If we ever put each procedure/function within its own subspace
7517 (to make life easier on the compiler and linker), then this will have
7518 to become more efficient. */
7519
7520static ssd_chain_struct *
7521pa_subsegment_to_subspace (seg, subseg)
7522 asection *seg;
7523 subsegT subseg;
7524{
7525 sd_chain_struct *space_chain;
7526 ssd_chain_struct *subspace_chain;
7527
7528 /* Walk through each space. */
7529 for (space_chain = space_dict_root;
7530 space_chain;
7531 space_chain = space_chain->sd_next)
7532 {
7533 if (space_chain->sd_seg == seg)
7534 {
7535 /* Walk through each subspace within each space looking for
7536 the correct mapping. */
7537 for (subspace_chain = space_chain->sd_subspaces;
7538 subspace_chain;
7539 subspace_chain = subspace_chain->ssd_next)
7540 if (subspace_chain->ssd_subseg == (int) subseg)
7541 return subspace_chain;
7542 }
7543 }
7544
7545 /* No mapping from subsegment to subspace found. Return NULL. */
7546 return NULL;
7547}
7548
7549/* Given a number, try and find a space with the name number.
7550
7551 Return a pointer to a space dictionary chain entry for the space
7552 that was found or NULL on failure. */
7553
7554static sd_chain_struct *
7555pa_find_space_by_number (number)
7556 int number;
7557{
7558 sd_chain_struct *space_chain;
7559
7560 for (space_chain = space_dict_root;
7561 space_chain;
7562 space_chain = space_chain->sd_next)
7563 {
7564 if (SPACE_SPNUM (space_chain) == (unsigned int) number)
7565 return space_chain;
7566 }
7567
7568 /* No appropriate space found. Return NULL. */
7569 return NULL;
7570}
7571
7572/* Return the starting address for the given subspace. If the starting
7573 address is unknown then return zero. */
7574
7575static unsigned int
7576pa_subspace_start (space, quadrant)
7577 sd_chain_struct *space;
7578 int quadrant;
7579{
252b5132
RH		 7580 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
7581 is not correct for the PA OSF1 port. */
7582 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
7583 return 0x40000000;
7584 else if (space->sd_seg == data_section && quadrant == 1)
7585 return 0x40000000;
7586 else
7587 return 0;
252b5132
RH		 7588 return 0;
7589}
7590
7591/* FIXME. Needs documentation. */
7592static int
7593pa_next_subseg (space)
7594 sd_chain_struct *space;
7595{
7596
7597 space->sd_last_subseg++;
7598 return space->sd_last_subseg;
7599}
49863f82 7600#endif
252b5132
RH		 7601
7602/* Helper function for pa_stringer. Used to find the end of
7603 a string. */
7604
7605static unsigned int
7606pa_stringer_aux (s)
7607 char *s;
7608{
7609 unsigned int c = *s & CHAR_MASK;
7610
49863f82 7611#ifdef OBJ_SOM
252b5132
RH		 7612 /* We must have a valid space and subspace. */
7613 pa_check_current_space_and_subspace ();
49863f82 7614#endif
252b5132
RH		 7615
7616 switch (c)
7617 {
7618 case '\"':
7619 c = NOT_A_CHAR;
7620 break;
7621 default:
7622 break;
7623 }
7624 return c;
7625}
7626
7627/* Handle a .STRING type pseudo-op. */
7628
7629static void
7630pa_stringer (append_zero)
7631 int append_zero;
7632{
7633 char *s, num_buf[4];
7634 unsigned int c;
7635 int i;
7636
7637 /* Preprocess the string to handle PA-specific escape sequences.
7638 For example, \xDD where DD is a hexidecimal number should be
7639 changed to \OOO where OOO is an octal number. */
7640
7641 /* Skip the opening quote. */
7642 s = input_line_pointer + 1;
7643
7644 while (is_a_char (c = pa_stringer_aux (s++)))
7645 {
7646 if (c == '\\')
7647 {
7648 c = *s;
7649 switch (c)
7650 {
7651 /* Handle \x<num>. */
7652 case 'x':
7653 {
7654 unsigned int number;
7655 int num_digit;
7656 char dg;
7657 char *s_start = s;
7658
7659 /* Get pas the 'x'. */
7660 s++;
7661 for (num_digit = 0, number = 0, dg = *s;
7662 num_digit < 2
7663 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
7664 || (dg >= 'A' && dg <= 'F'));
7665 num_digit++)
7666 {
7667 if (isdigit (dg))
7668 number = number * 16 + dg - '0';
7669 else if (dg >= 'a' && dg <= 'f')
7670 number = number * 16 + dg - 'a' + 10;
7671 else
7672 number = number * 16 + dg - 'A' + 10;
7673
7674 s++;
7675 dg = *s;
7676 }
7677 if (num_digit > 0)
7678 {
7679 switch (num_digit)
7680 {
7681 case 1:
7682 sprintf (num_buf, "%02o", number);
7683 break;
7684 case 2:
7685 sprintf (num_buf, "%03o", number);
7686 break;
7687 }
7688 for (i = 0; i <= num_digit; i++)
7689 s_start[i] = num_buf[i];
7690 }
7691 break;
7692 }
7693 /* This might be a "\"", skip over the escaped char. */
7694 default:
7695 s++;
7696 break;
7697 }
7698 }
7699 }
7700 stringer (append_zero);
7701 pa_undefine_label ();
7702}
7703
7704/* Handle a .VERSION pseudo-op. */
7705
7706static void
7707pa_version (unused)
7708 int unused;
7709{
7710 obj_version (0);
7711 pa_undefine_label ();
7712}
7713
7714#ifdef OBJ_SOM
7715
7716/* Handle a .COMPILER pseudo-op. */
7717
7718static void
7719pa_compiler (unused)
7720 int unused;
7721{
7722 obj_som_compiler (0);
7723 pa_undefine_label ();
7724}
7725
7726#endif
7727
7728/* Handle a .COPYRIGHT pseudo-op. */
7729
7730static void
7731pa_copyright (unused)
7732 int unused;
7733{
7734 obj_copyright (0);
7735 pa_undefine_label ();
7736}
7737
7738/* Just like a normal cons, but when finished we have to undefine
7739 the latest space label. */
7740
7741static void
7742pa_cons (nbytes)
7743 int nbytes;
7744{
7745 cons (nbytes);
7746 pa_undefine_label ();
7747}
7748
7749/* Switch to the data space. As usual delete our label. */
7750
7751static void
7752pa_data (unused)
7753 int unused;
7754{
49863f82 7755#ifdef OBJ_SOM
252b5132
RH		 7756 current_space = is_defined_space ("$PRIVATE$");
7757 current_subspace
7758 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 7759#endif
252b5132
RH		 7760 s_data (0);
7761 pa_undefine_label ();
7762}
7763
7764/* Like float_cons, but we need to undefine our label. */
7765
7766static void
7767pa_float_cons (float_type)
7768 int float_type;
7769{
7770 float_cons (float_type);
7771 pa_undefine_label ();
7772}
7773
7774/* Like s_fill, but delete our label when finished. */
7775
7776static void
7777pa_fill (unused)
7778 int unused;
7779{
49863f82 7780#ifdef OBJ_SOM
252b5132
RH		 7781 /* We must have a valid space and subspace. */
7782 pa_check_current_space_and_subspace ();
49863f82 7783#endif
252b5132
RH		 7784
7785 s_fill (0);
7786 pa_undefine_label ();
7787}
7788
7789/* Like lcomm, but delete our label when finished. */
7790
7791static void
7792pa_lcomm (needs_align)
7793 int needs_align;
7794{
49863f82 7795#ifdef OBJ_SOM
252b5132
RH		 7796 /* We must have a valid space and subspace. */
7797 pa_check_current_space_and_subspace ();
49863f82 7798#endif
252b5132
RH		 7799
7800 s_lcomm (needs_align);
7801 pa_undefine_label ();
7802}
7803
7804/* Like lsym, but delete our label when finished. */
7805
7806static void
7807pa_lsym (unused)
7808 int unused;
7809{
49863f82 7810#ifdef OBJ_SOM
252b5132
RH		 7811 /* We must have a valid space and subspace. */
7812 pa_check_current_space_and_subspace ();
49863f82 7813#endif
252b5132
RH		 7814
7815 s_lsym (0);
7816 pa_undefine_label ();
7817}
7818
7819/* Switch to the text space. Like s_text, but delete our
7820 label when finished. */
7821static void
7822pa_text (unused)
7823 int unused;
7824{
49863f82 7825#ifdef OBJ_SOM
252b5132
RH		 7826 current_space = is_defined_space ("$TEXT$");
7827 current_subspace
7828 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 7829#endif
252b5132
RH		 7830
7831 s_text (0);
7832 pa_undefine_label ();
7833}
7834
7835/* On the PA relocations which involve function symbols must not be
7836 adjusted. This so that the linker can know when/how to create argument
7837 relocation stubs for indirect calls and calls to static functions.
7838
7839 "T" field selectors create DLT relative fixups for accessing
7840 globals and statics in PIC code; each DLT relative fixup creates
7841 an entry in the DLT table. The entries contain the address of
7842 the final target (eg accessing "foo" would create a DLT entry
7843 with the address of "foo").
7844
7845 Unfortunately, the HP linker doesn't take into account any addend
7846 when generating the DLT; so accessing $LIT$+8 puts the address of
7847 $LIT$ into the DLT rather than the address of $LIT$+8.
7848
7849 The end result is we can't perform relocation symbol reductions for
7850 any fixup which creates entries in the DLT (eg they use "T" field
7851 selectors).
7852
7853 Reject reductions involving symbols with external scope; such
7854 reductions make life a living hell for object file editors.
7855
7856 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7857 the code space. The SOM BFD backend doesn't know how to pull the
7858 right bits out of an instruction. */
7859
7860int
7861hppa_fix_adjustable (fixp)
7862 fixS *fixp;
7863{
7864 struct hppa_fix_struct *hppa_fix;
7865
7866 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
7867
7868#ifdef OBJ_SOM
7869 /* Reject reductions of symbols in 32bit relocs. */
7870 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
7871 return 0;
7872
7873 /* Reject reductions of symbols in sym1-sym2 expressions when
7874 the fixup will occur in a CODE subspace.
7875
7876 XXX FIXME: Long term we probably want to reject all of these;
7877 for example reducing in the debug section would lose if we ever
7878 supported using the optimizing hp linker. */
7879 if (fixp->fx_addsy
7880 && fixp->fx_subsy
7881 && (hppa_fix->segment->flags & SEC_CODE))
7882 {
7883 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
398e8c25 7884 symbol_mark_used_in_reloc (fixp->fx_subsy);
252b5132
RH		 7885 return 0;
7886 }
7887
7888 /* We can't adjust any relocs that use LR% and RR% field selectors.
7889 That confuses the HP linker. */
7890 if (hppa_fix->fx_r_field == e_lrsel
7891 || hppa_fix->fx_r_field == e_rrsel
7892 || hppa_fix->fx_r_field == e_nlrsel)
7893 return 0;
7894#endif
7895
7896 /* Reject reductions of symbols in DLT relative relocs,
7897 relocations with plabels. */
7898 if (hppa_fix->fx_r_field == e_tsel
7899 || hppa_fix->fx_r_field == e_ltsel
7900 || hppa_fix->fx_r_field == e_rtsel
7901 || hppa_fix->fx_r_field == e_psel
7902 || hppa_fix->fx_r_field == e_rpsel
7903 || hppa_fix->fx_r_field == e_lpsel)
7904 return 0;
7905
a0f75b47 7906 if (fixp->fx_addsy && S_IS_EXTERNAL (fixp->fx_addsy))
252b5132
RH		 7907 return 0;
7908
7909 /* Reject absolute calls (jumps). */
7910 if (hppa_fix->fx_r_type == R_HPPA_ABS_CALL)
7911 return 0;
7912
7913 /* Reject reductions of function symbols. */
a0f75b47 7914 if (fixp->fx_addsy == 0 || ! S_IS_FUNCTION (fixp->fx_addsy))
252b5132
RH		 7915 return 1;
7916
7917 return 0;
7918}
7919
7920/* Return nonzero if the fixup in FIXP will require a relocation,
7921 even it if appears that the fixup could be completely handled
7922 within GAS. */
7923
7924int
7925hppa_force_relocation (fixp)
7926 fixS *fixp;
7927{
7928 struct hppa_fix_struct *hppa_fixp;
7929 int distance;
7930
7931 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
7932#ifdef OBJ_SOM
7933 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT
7934 || fixp->fx_r_type == R_HPPA_BEGIN_BRTAB
7935 || fixp->fx_r_type == R_HPPA_END_BRTAB
7936 || fixp->fx_r_type == R_HPPA_BEGIN_TRY
7937 || fixp->fx_r_type == R_HPPA_END_TRY
7938 || (fixp->fx_addsy != NULL && fixp->fx_subsy != NULL
7939 && (hppa_fixp->segment->flags & SEC_CODE) != 0))
7940 return 1;
7941#endif
7942
7943#define arg_reloc_stub_needed(CALLER, CALLEE) \
7944 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7945
49863f82 7946#ifdef OBJ_SOM
252b5132
RH		 7947 /* It is necessary to force PC-relative calls/jumps to have a relocation
7948 entry if they're going to need either a argument relocation or long
7949 call stub. FIXME. Can't we need the same for absolute calls? */
7950 if (fixp->fx_pcrel && fixp->fx_addsy
7951 && (arg_reloc_stub_needed ((long) ((obj_symbol_type *)
a0f75b47
ILT		 7952 symbol_get_bfdsym (fixp->fx_addsy))->tc_data.ap.hppa_arg_reloc,
7953 hppa_fixp->fx_arg_reloc)))
252b5132 7954 return 1;
49863f82 7955#endif
252b5132
RH		 7956 distance = (fixp->fx_offset + S_GET_VALUE (fixp->fx_addsy)
7957 - md_pcrel_from (fixp));
7958 /* Now check and see if we're going to need a long-branch stub. */
7959 if (fixp->fx_r_type == R_HPPA_PCREL_CALL
7960 && (distance > 262143 || distance < -262144))
7961 return 1;
7962
7963 if (fixp->fx_r_type == R_HPPA_ABS_CALL)
7964 return 1;
7965#undef arg_reloc_stub_needed
7966
7967 /* No need (yet) to force another relocations to be emitted. */
7968 return 0;
7969}
7970
7971/* Now for some ELF specific code. FIXME. */
7972#ifdef OBJ_ELF
7973/* Mark the end of a function so that it's possible to compute
7974 the size of the function in hppa_elf_final_processing. */
7975
7976static void
7977hppa_elf_mark_end_of_function ()
7978{
7979 /* ELF does not have EXIT relocations. All we do is create a
7980 temporary symbol marking the end of the function. */
7981 char *name = (char *)
7982 xmalloc (strlen ("L$\001end_") +
7983 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
7984
7985 if (name)
7986 {
7987 symbolS *symbolP;
7988
7989 strcpy (name, "L$\001end_");
7990 strcat (name, S_GET_NAME (last_call_info->start_symbol));
7991
7992 /* If we have a .exit followed by a .procend, then the
7993 symbol will have already been defined. */
7994 symbolP = symbol_find (name);
7995 if (symbolP)
7996 {
7997 /* The symbol has already been defined! This can
7998 happen if we have a .exit followed by a .procend.
7999
8000 This is *not* an error. All we want to do is free
8001 the memory we just allocated for the name and continue. */
8002 xfree (name);
8003 }
8004 else
8005 {
8006 /* symbol value should be the offset of the
8007 last instruction of the function */
8008 symbolP = symbol_new (name, now_seg, (valueT) (frag_now_fix () - 4),
8009 frag_now);
8010
8011 assert (symbolP);
a0f75b47 8012 S_CLEAR_EXTERNAL (symbolP);
252b5132
RH		 8013 symbol_table_insert (symbolP);
8014 }
8015
8016 if (symbolP)
8017 last_call_info->end_symbol = symbolP;
8018 else
8019 as_bad (_("Symbol '%s' could not be created."), name);
8020
8021 }
8022 else
8023 as_bad (_("No memory for symbol name."));
8024
8025}
8026
8027/* For ELF, this function serves one purpose: to setup the st_size
8028 field of STT_FUNC symbols. To do this, we need to scan the
8029 call_info structure list, determining st_size in by taking the
8030 difference in the address of the beginning/end marker symbols. */
8031
8032void
8033elf_hppa_final_processing ()
8034{
8035 struct call_info *call_info_pointer;
8036
8037 for (call_info_pointer = call_info_root;
8038 call_info_pointer;
8039 call_info_pointer = call_info_pointer->ci_next)
8040 {
8041 elf_symbol_type *esym
a0f75b47
ILT		 8042 = ((elf_symbol_type *)
8043 symbol_get_bfdsym (call_info_pointer->start_symbol));
252b5132
RH		 8044 esym->internal_elf_sym.st_size =
8045 S_GET_VALUE (call_info_pointer->end_symbol)
8046 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
8047 }
8048}
8049#endif
2d93dcc4
JL		 8050
8051#ifdef OBJ_ELF
8052pa_end_of_source ()
8053{
8054 if (debug_type == DEBUG_DWARF2)
8055 dwarf2_finish ();
8056}
8057#endif
GDB Binutils - Deliverables
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