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* hppa.h (pa_opcodes): Fix minor thinkos introduced while cleaning
[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 {
2142 int permloc[4] = {13,10,8,6};
2143 int perm = 0;
2144 int i = 0;
2145 for (; i < 4; i++)
2146 {
2147 switch (*s++)
2148 {
2149 case '0':
2150 perm = 0;
2151 break;
2152 case '1':
2153 perm = 1;
2154 break;
2155 case '2':
2156 perm = 2;
2157 break;
2158 case '3':
2159 perm = 3;
2160 break;
2161 default:
2162 as_bad(_("Invalid permutation completer"));
2163 }
2164 opcode |= perm << permloc[i];
2165 }
2166 continue;
2167 }
2168 else
2169 as_bad(_("Invalid permutation completer"));
2170 break;
2171
28252e61
JL		 2172 default:
2173 abort ();
2174 }
2175 break;
252b5132 2176
55a914bc 2177 /* Handle all conditions. */
252b5132 2178 case '?':
55a914bc
JL		 2179 {
2180 args++;
2181 switch (*args)
2182 {
2183 /* Handle FP compare conditions. */
2184 case 'f':
2185 cond = pa_parse_fp_cmp_cond (&s);
2186 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
2187
2188 /* Handle an add condition. */
9a913dfb 2189 case 'A':
55a914bc
JL		 2190 case 'a':
2191 cmpltr = 0;
2192 flag = 0;
2193 if (*s == ',')
2194 {
2195 s++;
9a913dfb
JL		 2196
2197 /* 64 bit conditions. */
2198 if (*args == 'A')
2199 {
2200 if (*s == '*')
2201 s++;
2202 else
2203 break;
2204 }
17d9105c
JL		 2205 else if (*s == '*')
2206 break;
55a914bc 2207 name = s;
9a913dfb 2208
680ef6de 2209 name = s;
55a914bc
JL		 2210 while (*s != ',' && *s != ' ' && *s != '\t')
2211 s += 1;
2212 c = *s;
2213 *s = 0x00;
2214 if (strcmp (name, "=") == 0)
2215 cmpltr = 1;
2216 else if (strcmp (name, "<") == 0)
2217 cmpltr = 2;
2218 else if (strcmp (name, "<=") == 0)
2219 cmpltr = 3;
2220 else if (strcasecmp (name, "nuv") == 0)
2221 cmpltr = 4;
2222 else if (strcasecmp (name, "znv") == 0)
2223 cmpltr = 5;
2224 else if (strcasecmp (name, "sv") == 0)
2225 cmpltr = 6;
2226 else if (strcasecmp (name, "od") == 0)
2227 cmpltr = 7;
2228 else if (strcasecmp (name, "tr") == 0)
2229 {
2230 cmpltr = 0;
2231 flag = 1;
2232 }
2233 else if (strcmp (name, "<>") == 0)
2234 {
2235 cmpltr = 1;
2236 flag = 1;
2237 }
2238 else if (strcmp (name, ">=") == 0)
2239 {
2240 cmpltr = 2;
2241 flag = 1;
2242 }
2243 else if (strcmp (name, ">") == 0)
2244 {
2245 cmpltr = 3;
2246 flag = 1;
2247 }
2248 else if (strcasecmp (name, "uv") == 0)
2249 {
2250 cmpltr = 4;
2251 flag = 1;
2252 }
2253 else if (strcasecmp (name, "vnz") == 0)
2254 {
2255 cmpltr = 5;
2256 flag = 1;
2257 }
2258 else if (strcasecmp (name, "nsv") == 0)
2259 {
2260 cmpltr = 6;
2261 flag = 1;
2262 }
2263 else if (strcasecmp (name, "ev") == 0)
2264 {
2265 cmpltr = 7;
2266 flag = 1;
2267 }
9a913dfb
JL		 2268 /* ",*" is a valid condition. */
2269 else if (*args == 'a')
55a914bc
JL		 2270 as_bad (_("Invalid Add Condition: %s"), name);
2271 *s = c;
2272 }
2273 opcode |= cmpltr << 13;
2274 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2275
55a914bc
JL		 2276 /* Handle non-negated add and branch condition. */
2277 case 'd':
2278 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
2279 if (cmpltr < 0)
2280 {
2281 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2282 cmpltr = 0;
2283 }
2284 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2285
9a913dfb
JL		 2286 /* Handle negated add and branch condition. */
2287 case 'D':
2288 abort ();
2289
2290 /* Handle wide-mode non-negated add and branch condition. */
2291 case 'w':
2292 abort ();
2293
2294 /* Handle wide-mode negated add and branch condition. */
2295 case 'W':
2296 abort();
2297
55a914bc
JL		 2298 /* Handle a negated or non-negated add and branch
2299 condition. */
2300 case '@':
2301 save_s = s;
2302 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
2303 if (cmpltr < 0)
2304 {
2305 s = save_s;
2306 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
2307 if (cmpltr < 0)
2308 {
2309 as_bad (_("Invalid Compare/Subtract Condition"));
2310 cmpltr = 0;
2311 }
2312 else
2313 {
2314 /* Negated condition requires an opcode change. */
2315 opcode |= 1 << 27;
2316 }
2317 }
2318 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
252b5132 2319
55a914bc 2320 /* Handle branch on bit conditions. */
9a913dfb 2321 case 'B':
55a914bc
JL		 2322 case 'b':
2323 cmpltr = 0;
2324 if (*s == ',')
2325 {
2326 s++;
9a913dfb
JL		 2327
2328 if (*args == 'B')
2329 {
2330 if (*s == '*')
2331 s++;
2332 else
2333 break;
2334 }
17d9105c
JL		 2335 else if (*s == '*')
2336 break;
9a913dfb 2337
55a914bc
JL		 2338 if (strncmp (s, "<", 1) == 0)
2339 {
2340 cmpltr = 0;
2341 s++;
2342 }
2343 else if (strncmp (s, ">=", 2) == 0)
2344 {
2345 cmpltr = 1;
2346 s += 2;
2347 }
2348 else
2349 as_bad (_("Invalid Bit Branch Condition: %c"), *s);
2350 }
2351 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 15);
252b5132 2352
55a914bc 2353 /* Handle a compare/subtract condition. */
9a913dfb 2354 case 'S':
55a914bc
JL		 2355 case 's':
2356 cmpltr = 0;
2357 flag = 0;
2358 if (*s == ',')
2359 {
2360 s++;
9a913dfb
JL		 2361
2362 /* 64 bit conditions. */
2363 if (*args == 'S')
2364 {
2365 if (*s == '*')
2366 s++;
2367 else
2368 break;
2369 }
17d9105c
JL		 2370 else if (*s == '*')
2371 break;
55a914bc 2372 name = s;
9a913dfb 2373
680ef6de 2374 name = s;
55a914bc
JL		 2375 while (*s != ',' && *s != ' ' && *s != '\t')
2376 s += 1;
2377 c = *s;
2378 *s = 0x00;
2379 if (strcmp (name, "=") == 0)
2380 cmpltr = 1;
2381 else if (strcmp (name, "<") == 0)
2382 cmpltr = 2;
2383 else if (strcmp (name, "<=") == 0)
2384 cmpltr = 3;
2385 else if (strcasecmp (name, "<<") == 0)
2386 cmpltr = 4;
2387 else if (strcasecmp (name, "<<=") == 0)
2388 cmpltr = 5;
2389 else if (strcasecmp (name, "sv") == 0)
2390 cmpltr = 6;
2391 else if (strcasecmp (name, "od") == 0)
2392 cmpltr = 7;
2393 else if (strcasecmp (name, "tr") == 0)
2394 {
2395 cmpltr = 0;
2396 flag = 1;
2397 }
2398 else if (strcmp (name, "<>") == 0)
2399 {
2400 cmpltr = 1;
2401 flag = 1;
2402 }
2403 else if (strcmp (name, ">=") == 0)
2404 {
2405 cmpltr = 2;
2406 flag = 1;
2407 }
2408 else if (strcmp (name, ">") == 0)
2409 {
2410 cmpltr = 3;
2411 flag = 1;
2412 }
2413 else if (strcasecmp (name, ">>=") == 0)
2414 {
2415 cmpltr = 4;
2416 flag = 1;
2417 }
2418 else if (strcasecmp (name, ">>") == 0)
2419 {
2420 cmpltr = 5;
2421 flag = 1;
2422 }
2423 else if (strcasecmp (name, "nsv") == 0)
2424 {
2425 cmpltr = 6;
2426 flag = 1;
2427 }
2428 else if (strcasecmp (name, "ev") == 0)
2429 {
2430 cmpltr = 7;
2431 flag = 1;
2432 }
9a913dfb
JL		 2433 /* ",*" is a valid condition. */
2434 else if (*args != 'S')
55a914bc
JL		 2435 as_bad (_("Invalid Compare/Subtract Condition: %s"),
2436 name);
2437 *s = c;
2438 }
2439 opcode |= cmpltr << 13;
2440 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2441
55a914bc
JL		 2442 /* Handle a non-negated compare condition. */
2443 case 't':
2444 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2445 if (cmpltr < 0)
2446 {
2447 as_bad (_("Invalid Compare/Subtract Condition: %c"), *s);
2448 cmpltr = 0;
2449 }
2450 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
9a913dfb
JL		 2451
2452 /* Handle a negated compare condition. */
2453 case 'T':
2454 abort ();
2455
2456 /* Handle a 64 bit non-negated compare condition. */
2457 case 'r':
2458 abort ();
2459
2460 /* Handle a 64 bit negated compare condition. */
2461 case 'R':
2462 abort ();
2463
2464 /* Handle a 64 bit cmpib condition. */
2465 case 'Q':
2466 abort ();
55a914bc
JL		 2467
2468 /* Handle a negated or non-negated compare/subtract
2469 condition. */
2470 case 'n':
2471 save_s = s;
2472 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
2473 if (cmpltr < 0)
2474 {
2475 s = save_s;
2476 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
2477 if (cmpltr < 0)
2478 {
2479 as_bad (_("Invalid Compare/Subtract Condition."));
2480 cmpltr = 0;
2481 }
2482 else
2483 {
2484 /* Negated condition requires an opcode change. */
2485 opcode |= 1 << 27;
2486 }
2487 }
2488
2489 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
2490
2491 /* Handle a logical instruction condition. */
9a913dfb 2492 case 'L':
55a914bc
JL		 2493 case 'l':
2494 cmpltr = 0;
2495 flag = 0;
2496 if (*s == ',')
2497 {
2498 s++;
9a913dfb
JL		 2499
2500 /* 64 bit conditions. */
2501 if (*args == 'L')
2502 {
2503 if (*s == '*')
2504 s++;
2505 else
2506 break;
2507 }
17d9105c
JL		 2508 else if (*s == '*')
2509 break;
55a914bc 2510 name = s;
9a913dfb 2511
680ef6de 2512 name = s;
55a914bc
JL		 2513 while (*s != ',' && *s != ' ' && *s != '\t')
2514 s += 1;
2515 c = *s;
2516 *s = 0x00;
2517
2518
2519 if (strcmp (name, "=") == 0)
2520 cmpltr = 1;
2521 else if (strcmp (name, "<") == 0)
2522 cmpltr = 2;
2523 else if (strcmp (name, "<=") == 0)
2524 cmpltr = 3;
2525 else if (strcasecmp (name, "od") == 0)
2526 cmpltr = 7;
2527 else if (strcasecmp (name, "tr") == 0)
2528 {
2529 cmpltr = 0;
2530 flag = 1;
2531 }
2532 else if (strcmp (name, "<>") == 0)
2533 {
2534 cmpltr = 1;
2535 flag = 1;
2536 }
2537 else if (strcmp (name, ">=") == 0)
2538 {
2539 cmpltr = 2;
2540 flag = 1;
2541 }
2542 else if (strcmp (name, ">") == 0)
2543 {
2544 cmpltr = 3;
2545 flag = 1;
2546 }
2547 else if (strcasecmp (name, "ev") == 0)
2548 {
2549 cmpltr = 7;
2550 flag = 1;
2551 }
9a913dfb
JL		 2552 /* ",*" is a valid condition. */
2553 else if (*args != 'L')
55a914bc
JL		 2554 as_bad (_("Invalid Logical Instruction Condition."));
2555 *s = c;
2556 }
2557 opcode |= cmpltr << 13;
2558 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
2559
2560 /* Handle a shift/extract/deposit condition. */
9a913dfb 2561 case 'X':
55a914bc
JL		 2562 case 'x':
2563 case 'y':
2564 cmpltr = 0;
2565 if (*s == ',')
2566 {
2567 save_s = s++;
2568
9a913dfb
JL		 2569 /* 64 bit conditions. */
2570 if (*args == 'X')
2571 {
2572 if (*s == '*')
2573 s++;
2574 else
2575 break;
2576 }
17d9105c
JL		 2577 else if (*s == '*')
2578 break;
55a914bc 2579 name = s;
9a913dfb 2580
680ef6de 2581 name = s;
55a914bc
JL		 2582 while (*s != ',' && *s != ' ' && *s != '\t')
2583 s += 1;
2584 c = *s;
2585 *s = 0x00;
2586 if (strcmp (name, "=") == 0)
2587 cmpltr = 1;
2588 else if (strcmp (name, "<") == 0)
2589 cmpltr = 2;
2590 else if (strcasecmp (name, "od") == 0)
2591 cmpltr = 3;
2592 else if (strcasecmp (name, "tr") == 0)
2593 cmpltr = 4;
2594 else if (strcmp (name, "<>") == 0)
2595 cmpltr = 5;
2596 else if (strcmp (name, ">=") == 0)
2597 cmpltr = 6;
2598 else if (strcasecmp (name, "ev") == 0)
2599 cmpltr = 7;
2600 /* Handle movb,n. Put things back the way they were.
2601 This includes moving s back to where it started. */
2602 else if (strcasecmp (name, "n") == 0 && *args == 'y')
2603 {
2604 *s = c;
2605 s = save_s;
2606 continue;
2607 }
9a913dfb
JL		 2608 /* ",*" is a valid condition. */
2609 else if (*args != 'X')
55a914bc
JL		 2610 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
2611 *s = c;
2612 }
2613 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
252b5132 2614
55a914bc 2615 /* Handle a unit instruction condition. */
9a913dfb
JL		 2616 case 'U':
2617 case 'u':
55a914bc
JL		 2618 cmpltr = 0;
2619 flag = 0;
2620 if (*s == ',')
2621 {
2622 s++;
2623
9a913dfb
JL		 2624 /* 64 bit conditions. */
2625 if (*args == 'U')
2626 {
2627 if (*s == '*')
2628 s++;
2629 else
2630 break;
2631 }
17d9105c
JL		 2632 else if (*s == '*')
2633 break;
9a913dfb 2634
55a914bc
JL		 2635 if (strncasecmp (s, "sbz", 3) == 0)
2636 {
2637 cmpltr = 2;
2638 s += 3;
2639 }
2640 else if (strncasecmp (s, "shz", 3) == 0)
2641 {
2642 cmpltr = 3;
2643 s += 3;
2644 }
2645 else if (strncasecmp (s, "sdc", 3) == 0)
2646 {
2647 cmpltr = 4;
2648 s += 3;
2649 }
2650 else if (strncasecmp (s, "sbc", 3) == 0)
2651 {
2652 cmpltr = 6;
2653 s += 3;
2654 }
2655 else if (strncasecmp (s, "shc", 3) == 0)
2656 {
2657 cmpltr = 7;
2658 s += 3;
2659 }
2660 else if (strncasecmp (s, "tr", 2) == 0)
2661 {
2662 cmpltr = 0;
2663 flag = 1;
2664 s += 2;
2665 }
2666 else if (strncasecmp (s, "nbz", 3) == 0)
2667 {
2668 cmpltr = 2;
2669 flag = 1;
2670 s += 3;
2671 }
2672 else if (strncasecmp (s, "nhz", 3) == 0)
2673 {
2674 cmpltr = 3;
2675 flag = 1;
2676 s += 3;
2677 }
2678 else if (strncasecmp (s, "ndc", 3) == 0)
2679 {
2680 cmpltr = 4;
2681 flag = 1;
2682 s += 3;
2683 }
2684 else if (strncasecmp (s, "nbc", 3) == 0)
2685 {
2686 cmpltr = 6;
2687 flag = 1;
2688 s += 3;
2689 }
2690 else if (strncasecmp (s, "nhc", 3) == 0)
2691 {
2692 cmpltr = 7;
2693 flag = 1;
2694 s += 3;
2695 }
9a913dfb
JL		 2696 /* ",*" is a valid condition. */
2697 else if (*args != 'U')
55a914bc
JL		 2698 as_bad (_("Invalid Unit Instruction Condition."));
2699 }
2700 opcode |= cmpltr << 13;
2701 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
252b5132 2702
55a914bc
JL		 2703 default:
2704 abort ();
2705 }
0741736b 2706 break;
55a914bc 2707 }
252b5132 2708
252b5132
RH		 2709 /* Handle a nullification completer for branch instructions. */
2710 case 'n':
2711 nullif = pa_parse_nullif (&s);
2712 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
2713
2714 /* Handle a nullification completer for copr and spop insns. */
2715 case 'N':
2716 nullif = pa_parse_nullif (&s);
2717 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2718
6be78360
JL		 2719 /* Handle ,gate completer for new syntax branches. */
2720 case 'g':
2721 if (*s == ',' && strcasecmp (s + 1, "gate") == 0)
2722 s += 5;
2723 else
2724 break;
2725 continue;
252b5132 2726
3db6e6bd
JL		 2727 /* Handle ,l completer for new syntax branches. */
2728 case 'l':
2729 if (*s == ',' && strcasecmp (s + 1, "l") == 0)
2730 s += 2;
2731 else
2732 break;
2733 continue;
2734
dbe2f9ee
JL		 2735 /* Handle ,push completer for new syntax branches. */
2736 case 'M':
2737 if (*s == ',' && strcasecmp (s + 1, "push") == 0)
2738 s += 5;
2739 else
2740 break;
2741 continue;
2742
629d9417
JL		 2743 /* Handle ,pop completer for new syntax branches. */
2744 case 'B':
2745 if (*s == ',' && strcasecmp (s + 1, "pop") == 0)
2746 s += 4;
2747 else
2748 break;
2749 continue;
2750
dbe2f9ee
JL		 2751 /* Handle ,%r2 completer for new syntax branches. */
2752 case 'L':
2753 if (*s == ',' && strcasecmp (s + 1, "%r2") == 0)
2754 s += 4;
2755 else if (*s == ',' && strcasecmp (s + 1, "%rp") == 0)
2756 s += 4;
2757 else
2758 break;
2759 continue;
2760
1cf6ae67
JL		 2761 /* Handle 3 bit entry into the fp compare array. Valid values
2762 are 0..6 inclusive. */
2763 case 'h':
2764 get_expression (s);
2765 s = expr_end;
2766 if (the_insn.exp.X_op == O_constant)
2767 {
2768 num = evaluate_absolute (&the_insn);
2769 CHECK_FIELD (num, 6, 0, 0);
2770 num++;
2771 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
2772 }
2773 else
2774 break;
2775
2776 /* Handle 3 bit entry into the fp compare array. Valid values
2777 are 0..6 inclusive. */
2778 case 'm':
2779 get_expression (s);
2780 s = expr_end;
2781 if (the_insn.exp.X_op == O_constant)
2782 {
2783 num = evaluate_absolute (&the_insn);
2784 CHECK_FIELD (num, 6, 0, 0);
2785 num = (num + 1) ^ 1;
2786 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
2787 }
2788 else
2789 as_bad (_("Invalid CBit Specification: %s"), s);
2790
2791 /* Handle graphics test completers for ftest */
2792 case '=':
2793 {
2794 num = pa_parse_ftest_gfx_completer (&s);
2795 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2796 }
2797
252b5132
RH		 2798 /* Handle a 11 bit immediate at 31. */
2799 case 'i':
2800 the_insn.field_selector = pa_chk_field_selector (&s);
2801 get_expression (s);
2802 s = expr_end;
2803 if (the_insn.exp.X_op == O_constant)
2804 {
2805 num = evaluate_absolute (&the_insn);
2806 CHECK_FIELD (num, 1023, -1024, 0);
2807 low_sign_unext (num, 11, &num);
2808 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2809 }
2810 else
2811 {
2812 if (is_DP_relative (the_insn.exp))
2813 the_insn.reloc = R_HPPA_GOTOFF;
2814 else if (is_PC_relative (the_insn.exp))
2815 the_insn.reloc = R_HPPA_PCREL_CALL;
2816 else
2817 the_insn.reloc = R_HPPA;
2818 the_insn.format = 11;
2819 continue;
2820 }
2821
65fab780
JL		 2822 /* Handle a 14 bit immediate at 31. */
2823 case 'J':
2824 the_insn.field_selector = pa_chk_field_selector (&s);
2825 get_expression (s);
2826 s = expr_end;
2827 if (the_insn.exp.X_op == O_constant)
2828 {
2829 int a, m;
2830
2831 /* XXX the completer stored away tibits of information
2832 for us to extract. We need a cleaner way to do this.
2833 Now that we have lots of letters again, it would be
2834 good to rethink this. */
2835 m = (opcode & (1 << 8)) != 0;
2836 a = (opcode & (1 << 9)) != 0;
2837 opcode &= ~ (3 << 8);
2838 num = evaluate_absolute (&the_insn);
2839 if (a == 1 && num >= 0 || (a == 0 && num < 0))
2840 break;
2841 CHECK_FIELD (num, 8191, -8192, 0);
2842 low_sign_unext (num, 14, &num);
2843 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2844 }
2845 else
2846 {
2847 break;
2848 }
2849
2850 /* Handle a 14 bit immediate at 31. */
2851 case 'K':
2852 the_insn.field_selector = pa_chk_field_selector (&s);
2853 get_expression (s);
2854 s = expr_end;
2855 if (the_insn.exp.X_op == O_constant)
2856 {
2857 int a, m;
2858
2859 /* XXX the completer stored away tibits of information
2860 for us to extract. We need a cleaner way to do this.
2861 Now that we have lots of letters again, it would be
2862 good to rethink this. */
2863 m = (opcode & (1 << 8)) != 0;
2864 a = (opcode & (1 << 9)) != 0;
2865 opcode &= ~ (3 << 8);
2866 num = evaluate_absolute (&the_insn);
2867 if (a == 1 && num < 0 || (a == 0 && num > 0))
2868 break;
2869 if (num % 4)
2870 break;
2871 CHECK_FIELD (num, 8191, -8192, 0);
2872 if (num < 0)
2873 opcode |= 1;
2874 num &= 0x1fff;
2875 num >>= 2;
2876 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
2877 }
2878 else
2879 {
2880 break;
2881 }
2882
61dd1d31
JL		 2883 /* Handle 14 bit immediated, shifted left three times. */
2884 case '#':
2885 the_insn.field_selector = pa_chk_field_selector (&s);
2886 get_expression (s);
2887 s = expr_end;
2888 if (the_insn.exp.X_op == O_constant)
2889 {
2890 num = evaluate_absolute (&the_insn);
2891 if (num & 0x7)
2892 break;
2893 CHECK_FIELD (num, 8191, -8192, 0);
2894 if (num < 0)
2895 opcode |= 1;
2896 num &= 0x1fff;
2897 num >>= 3;
2898 INSERT_FIELD_AND_CONTINUE (opcode, num, 4);
2899 }
2900 else
2901 {
2902 if (is_DP_relative (the_insn.exp))
2903 the_insn.reloc = R_HPPA_GOTOFF;
2904 else if (is_PC_relative (the_insn.exp))
2905 the_insn.reloc = R_HPPA_PCREL_CALL;
2906 else
2907 the_insn.reloc = R_HPPA;
2908 the_insn.format = 14;
2909 continue;
2910 }
2911 break;
2912
2913 /* Handle 14 bit immediate, shifted left twice. */
2914 case 'd':
2915 the_insn.field_selector = pa_chk_field_selector (&s);
2916 get_expression (s);
2917 s = expr_end;
2918 if (the_insn.exp.X_op == O_constant)
2919 {
2920 num = evaluate_absolute (&the_insn);
2921 if (num & 0x3)
2922 break;
2923 CHECK_FIELD (num, 8191, -8192, 0);
2924 if (num < 0)
2925 opcode |= 1;
2926 num &= 0x1fff;
2927 num >>= 2;
2928 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
2929 }
2930 else
2931 {
2932 if (is_DP_relative (the_insn.exp))
2933 the_insn.reloc = R_HPPA_GOTOFF;
2934 else if (is_PC_relative (the_insn.exp))
2935 the_insn.reloc = R_HPPA_PCREL_CALL;
2936 else
2937 the_insn.reloc = R_HPPA;
2938 the_insn.format = 14;
2939 continue;
2940 }
252b5132
RH		 2941
2942 /* Handle a 14 bit immediate at 31. */
2943 case 'j':
2944 the_insn.field_selector = pa_chk_field_selector (&s);
2945 get_expression (s);
2946 s = expr_end;
2947 if (the_insn.exp.X_op == O_constant)
2948 {
2949 num = evaluate_absolute (&the_insn);
2950 CHECK_FIELD (num, 8191, -8192, 0);
2951 low_sign_unext (num, 14, &num);
2952 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2953 }
2954 else
2955 {
2956 if (is_DP_relative (the_insn.exp))
2957 the_insn.reloc = R_HPPA_GOTOFF;
2958 else if (is_PC_relative (the_insn.exp))
2959 the_insn.reloc = R_HPPA_PCREL_CALL;
2960 else
2961 the_insn.reloc = R_HPPA;
2962 the_insn.format = 14;
2963 continue;
2964 }
2965
2966 /* Handle a 21 bit immediate at 31. */
2967 case 'k':
2968 the_insn.field_selector = pa_chk_field_selector (&s);
2969 get_expression (s);
2970 s = expr_end;
2971 if (the_insn.exp.X_op == O_constant)
2972 {
2973 num = evaluate_absolute (&the_insn);
2974 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
2975 dis_assemble_21 (num, &num);
2976 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2977 }
2978 else
2979 {
2980 if (is_DP_relative (the_insn.exp))
2981 the_insn.reloc = R_HPPA_GOTOFF;
2982 else if (is_PC_relative (the_insn.exp))
2983 the_insn.reloc = R_HPPA_PCREL_CALL;
2984 else
2985 the_insn.reloc = R_HPPA;
2986 the_insn.format = 21;
2987 continue;
2988 }
2989
2990 /* Handle a 12 bit branch displacement. */
2991 case 'w':
2992 the_insn.field_selector = pa_chk_field_selector (&s);
2993 get_expression (s);
2994 s = expr_end;
2995 the_insn.pcrel = 1;
2996 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
2997 {
2998 unsigned int w1, w, result;
2999
3000 num = evaluate_absolute (&the_insn);
3001 if (num % 4)
3002 {
3003 as_bad (_("Branch to unaligned address"));
3004 break;
3005 }
3006 CHECK_FIELD (num, 8199, -8184, 0);
3007 sign_unext ((num - 8) >> 2, 12, &result);
3008 dis_assemble_12 (result, &w1, &w);
3009 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
3010 }
3011 else
3012 {
3013 the_insn.reloc = R_HPPA_PCREL_CALL;
3014 the_insn.format = 12;
3015 the_insn.arg_reloc = last_call_desc.arg_reloc;
3016 memset (&last_call_desc, 0, sizeof (struct call_desc));
3017 s = expr_end;
3018 continue;
3019 }
3020
3021 /* Handle a 17 bit branch displacement. */
3022 case 'W':
3023 the_insn.field_selector = pa_chk_field_selector (&s);
3024 get_expression (s);
3025 s = expr_end;
3026 the_insn.pcrel = 1;
3027 if (!the_insn.exp.X_add_symbol
3028 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3029 "L$0\001"))
3030 {
3031 unsigned int w2, w1, w, result;
3032
3033 num = evaluate_absolute (&the_insn);
3034 if (num % 4)
3035 {
3036 as_bad (_("Branch to unaligned address"));
3037 break;
3038 }
3039 CHECK_FIELD (num, 262143, -262144, 0);
3040
3041 if (the_insn.exp.X_add_symbol)
3042 num -= 8;
3043
3044 sign_unext (num >> 2, 17, &result);
3045 dis_assemble_17 (result, &w1, &w2, &w);
3046 INSERT_FIELD_AND_CONTINUE (opcode,
3047 ((w2 << 2) | (w1 << 16) | w), 0);
3048 }
3049 else
3050 {
3051 the_insn.reloc = R_HPPA_PCREL_CALL;
3052 the_insn.format = 17;
3053 the_insn.arg_reloc = last_call_desc.arg_reloc;
3054 memset (&last_call_desc, 0, sizeof (struct call_desc));
3055 continue;
3056 }
3057
77c02e18
JL		 3058 /* Handle a 22 bit branch displacement. */
3059 case 'X':
3060 the_insn.field_selector = pa_chk_field_selector (&s);
3061 get_expression (s);
3062 s = expr_end;
3063 the_insn.pcrel = 1;
3064 if (!the_insn.exp.X_add_symbol
3065 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3066 "L$0\001"))
3067 {
3068 unsigned int w3, w2, w1, w, result;
3069
3070 num = evaluate_absolute (&the_insn);
3071 if (num % 4)
3072 {
3073 as_bad (_("Branch to unaligned address"));
3074 break;
3075 }
3076 CHECK_FIELD (num, 8388607, -8388608, 0);
3077
3078 if (the_insn.exp.X_add_symbol)
3079 num -= 8;
3080
3081 sign_unext (num >> 2, 22, &result);
3082 dis_assemble_22 (result, &w3, &w1, &w2, &w);
3083 INSERT_FIELD_AND_CONTINUE (opcode,
3084 ((w3 << 21) | (w2 << 2)
3085 | (w1 << 16) | w),
3086 0);
3087 }
3088 else
3089 {
3090 the_insn.reloc = R_HPPA_PCREL_CALL;
3091 the_insn.format = 22;
3092 the_insn.arg_reloc = last_call_desc.arg_reloc;
3093 memset (&last_call_desc, 0, sizeof (struct call_desc));
3094 continue;
3095 }
3096
252b5132
RH		 3097 /* Handle an absolute 17 bit branch target. */
3098 case 'z':
3099 the_insn.field_selector = pa_chk_field_selector (&s);
3100 get_expression (s);
3101 s = expr_end;
3102 the_insn.pcrel = 0;
3103 if (!the_insn.exp.X_add_symbol
3104 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
3105 "L$0\001"))
3106 {
3107 unsigned int w2, w1, w, result;
3108
3109 num = evaluate_absolute (&the_insn);
3110 if (num % 4)
3111 {
3112 as_bad (_("Branch to unaligned address"));
3113 break;
3114 }
3115 CHECK_FIELD (num, 262143, -262144, 0);
3116
3117 if (the_insn.exp.X_add_symbol)
3118 num -= 8;
3119
3120 sign_unext (num >> 2, 17, &result);
3121 dis_assemble_17 (result, &w1, &w2, &w);
3122 INSERT_FIELD_AND_CONTINUE (opcode,
3123 ((w2 << 2) | (w1 << 16) | w), 0);
3124 }
3125 else
3126 {
3127 the_insn.reloc = R_HPPA_ABS_CALL;
3128 the_insn.format = 17;
3129 the_insn.arg_reloc = last_call_desc.arg_reloc;
3130 memset (&last_call_desc, 0, sizeof (struct call_desc));
3131 continue;
3132 }
3133
4964086a
JL		 3134 /* Handle '%r1' implicit operand of addil instruction. */
3135 case 'Z':
3136 if (*s == ',' && *(s + 1) == '%' && *(s + 3) == '1'
3137 && (*(s + 2) == 'r' || *(s + 2) == 'R'))
3138 {
3139 s += 4;
3140 continue;
3141 }
3142 else
3143 break;
3144
a97685e9
JL		 3145 /* Handle a 2 bit shift count at 25. */
3146 case '.':
3147 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3148 if (strict && the_insn.exp.X_op != O_constant)
3149 break;
a97685e9 3150 s = expr_end;
0f4f8b56 3151 CHECK_FIELD (num, 3, 1, strict);
a97685e9
JL		 3152 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3153
413c94ba
JL		 3154 /* Handle a 4 bit shift count at 25. */
3155 case '*':
3156 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3157 if (strict && the_insn.exp.X_op != O_constant)
3158 break;
413c94ba 3159 s = expr_end;
0f4f8b56 3160 CHECK_FIELD (num, 15, 0, strict);
413c94ba
JL		 3161 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3162
252b5132
RH		 3163 /* Handle a 5 bit shift count at 26. */
3164 case 'p':
3165 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3166 if (strict && the_insn.exp.X_op != O_constant)
3167 break;
252b5132 3168 s = expr_end;
0f4f8b56 3169 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 3170 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
3171
a97685e9
JL		 3172 /* Handle a 6 bit shift count at 20,22:26. */
3173 case '~':
3174 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3175 if (strict && the_insn.exp.X_op != O_constant)
3176 break;
a97685e9 3177 s = expr_end;
0f4f8b56 3178 CHECK_FIELD (num, 63, 0, strict);
a97685e9
JL		 3179 num = 63 - num;
3180 opcode |= (num & 0x20) << 6;
3181 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
3182
9e4f2d3a
JL		 3183 /* Handle a 6 bit field length at 23,27:31. */
3184 case '%':
3185 flag = 0;
3186 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3187 if (strict && the_insn.exp.X_op != O_constant)
3188 break;
9e4f2d3a 3189 s = expr_end;
0f4f8b56 3190 CHECK_FIELD (num, 64, 1, strict);
9e4f2d3a
JL		 3191 num--;
3192 opcode |= (num & 0x20) << 3;
3193 num = 31 - (num & 0x1f);
3194 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3195
3196 /* Handle a 6 bit field length at 19,27:31. */
3197 case '|':
3198 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3199 if (strict && the_insn.exp.X_op != O_constant)
3200 break;
9e4f2d3a 3201 s = expr_end;
0f4f8b56 3202 CHECK_FIELD (num, 64, 1, strict);
9e4f2d3a
JL		 3203 num--;
3204 opcode |= (num & 0x20) << 7;
3205 num = 31 - (num & 0x1f);
3206 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3207
252b5132
RH		 3208 /* Handle a 5 bit bit position at 26. */
3209 case 'P':
3210 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3211 if (strict && the_insn.exp.X_op != O_constant)
3212 break;
252b5132 3213 s = expr_end;
0f4f8b56 3214 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 3215 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
3216
9e4f2d3a
JL		 3217 /* Handle a 6 bit bit position at 20,22:26. */
3218 case 'q':
3219 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3220 if (strict && the_insn.exp.X_op != O_constant)
3221 break;
9e4f2d3a 3222 s = expr_end;
0f4f8b56 3223 CHECK_FIELD (num, 63, 0, strict);
9e4f2d3a
JL		 3224 opcode |= (num & 0x20) << 6;
3225 INSERT_FIELD_AND_CONTINUE (opcode, num & 0x1f, 5);
3226
252b5132
RH		 3227 /* Handle a 5 bit immediate at 10. */
3228 case 'Q':
252b5132 3229 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3230 if (strict && the_insn.exp.X_op != O_constant)
3231 break;
252b5132
RH		 3232 if (the_insn.exp.X_op != O_constant)
3233 break;
3234 s = expr_end;
0f4f8b56 3235 CHECK_FIELD (num, 31, 0, strict);
252b5132
RH		 3236 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
3237
a97685e9
JL		 3238 /* Handle a 9 bit immediate at 28. */
3239 case '$':
3240 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3241 if (strict && the_insn.exp.X_op != O_constant)
3242 break;
a97685e9 3243 s = expr_end;
0f4f8b56 3244 CHECK_FIELD (num, 511, 1, strict);
a97685e9
JL		 3245 INSERT_FIELD_AND_CONTINUE (opcode, num, 3);
3246
252b5132
RH		 3247 /* Handle a 13 bit immediate at 18. */
3248 case 'A':
3249 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3250 if (strict && the_insn.exp.X_op != O_constant)
3251 break;
252b5132 3252 s = expr_end;
0f4f8b56 3253 CHECK_FIELD (num, 8191, 0, strict);
252b5132
RH		 3254 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
3255
3256 /* Handle a 26 bit immediate at 31. */
3257 case 'D':
3258 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3259 if (strict && the_insn.exp.X_op != O_constant)
3260 break;
252b5132 3261 s = expr_end;
0f4f8b56 3262 CHECK_FIELD (num, 671108864, 0, strict);
252b5132
RH		 3263 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3264
3265 /* Handle a 3 bit SFU identifier at 25. */
97e1581b 3266 case 'v':
252b5132
RH		 3267 if (*s++ != ',')
3268 as_bad (_("Invalid SFU identifier"));
3269 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3270 if (strict && the_insn.exp.X_op != O_constant)
3271 break;
252b5132 3272 s = expr_end;
0f4f8b56 3273 CHECK_FIELD (num, 7, 0, strict);
252b5132
RH		 3274 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3275
3276 /* Handle a 20 bit SOP field for spop0. */
3277 case 'O':
3278 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3279 if (strict && the_insn.exp.X_op != O_constant)
3280 break;
252b5132 3281 s = expr_end;
0f4f8b56 3282 CHECK_FIELD (num, 1048575, 0, strict);
252b5132
RH		 3283 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
3284 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3285
3286 /* Handle a 15bit SOP field for spop1. */
3287 case 'o':
3288 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3289 if (strict && the_insn.exp.X_op != O_constant)
3290 break;
252b5132 3291 s = expr_end;
0f4f8b56 3292 CHECK_FIELD (num, 32767, 0, strict);
252b5132
RH		 3293 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
3294
3295 /* Handle a 10bit SOP field for spop3. */
3296 case '0':
3297 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3298 if (strict && the_insn.exp.X_op != O_constant)
3299 break;
252b5132 3300 s = expr_end;
0f4f8b56 3301 CHECK_FIELD (num, 1023, 0, strict);
252b5132
RH		 3302 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
3303 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3304
3305 /* Handle a 15 bit SOP field for spop2. */
3306 case '1':
3307 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3308 if (strict && the_insn.exp.X_op != O_constant)
3309 break;
252b5132 3310 s = expr_end;
0f4f8b56 3311 CHECK_FIELD (num, 32767, 0, strict);
252b5132
RH		 3312 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
3313 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3314
3315 /* Handle a 3-bit co-processor ID field. */
3316 case 'u':
3317 if (*s++ != ',')
3318 as_bad (_("Invalid COPR identifier"));
3319 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3320 if (strict && the_insn.exp.X_op != O_constant)
3321 break;
252b5132 3322 s = expr_end;
0f4f8b56 3323 CHECK_FIELD (num, 7, 0, strict);
252b5132
RH		 3324 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
3325
3326 /* Handle a 22bit SOP field for copr. */
3327 case '2':
3328 num = pa_get_absolute_expression (&the_insn, &s);
0f4f8b56
JL		 3329 if (strict && the_insn.exp.X_op != O_constant)
3330 break;
252b5132 3331 s = expr_end;
0f4f8b56 3332 CHECK_FIELD (num, 4194303, 0, strict);
252b5132
RH		 3333 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
3334 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
3335
1cf6ae67
JL		 3336 /* Handle a source FP operand format completer. */
3337 case '{':
3338 if (*s == ',' && *(s+1) == 't')
3339 {
3340 the_insn.trunc = 1;
3341 s += 2;
3342 }
3343 else
3344 the_insn.trunc = 0;
3345 flag = pa_parse_fp_cnv_format (&s);
3346 the_insn.fpof1 = flag;
3347 if (flag == W || flag == UW)
3348 flag = SGL;
3349 if (flag == DW || flag == UDW)
3350 flag = DBL;
3351 if (flag == QW || flag == UQW)
3352 flag = QUAD;
3353 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3354
3355 /* Handle a destination FP operand format completer. */
3356 case '_':
3357 /* pa_parse_format needs the ',' prefix. */
3358 s--;
3359 flag = pa_parse_fp_cnv_format (&s);
3360 the_insn.fpof2 = flag;
3361 if (flag == W || flag == UW)
3362 flag = SGL;
3363 if (flag == DW || flag == UDW)
3364 flag = DBL;
3365 if (flag == QW || flag == UQW)
3366 flag = QUAD;
3367 opcode |= flag << 13;
3368 if (the_insn.fpof1 == SGL
3369 || the_insn.fpof1 == DBL
3370 || the_insn.fpof1 == QUAD)
3371 {
3372 if (the_insn.fpof2 == SGL
3373 || the_insn.fpof2 == DBL
3374 || the_insn.fpof2 == QUAD)
3375 flag = 0;
3376 else if (the_insn.fpof2 == W
3377 || the_insn.fpof2 == DW
3378 || the_insn.fpof2 == QW)
3379 flag = 2;
3380 else if (the_insn.fpof2 == UW
3381 || the_insn.fpof2 == UDW
3382 || the_insn.fpof2 == UQW)
3383 flag = 6;
3384 else
3385 abort ();
3386 }
3387 else if (the_insn.fpof1 == W
3388 || the_insn.fpof1 == DW
3389 || the_insn.fpof1 == QW)
3390 {
3391 if (the_insn.fpof2 == SGL
3392 || the_insn.fpof2 == DBL
3393 || the_insn.fpof2 == QUAD)
3394 flag = 1;
3395 else
3396 abort ();
3397 }
3398 else if (the_insn.fpof1 == UW
3399 || the_insn.fpof1 == UDW
3400 || the_insn.fpof1 == UQW)
3401 {
3402 if (the_insn.fpof2 == SGL
3403 || the_insn.fpof2 == DBL
3404 || the_insn.fpof2 == QUAD)
3405 flag = 5;
3406 else
3407 abort ();
3408 }
3409 flag |= the_insn.trunc;
3410 INSERT_FIELD_AND_CONTINUE (opcode, flag, 15);
252b5132
RH		 3411
3412 /* Handle a source FP operand format completer. */
3413 case 'F':
3414 flag = pa_parse_fp_format (&s);
3415 the_insn.fpof1 = flag;
3416 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3417
3418 /* Handle a destination FP operand format completer. */
3419 case 'G':
3420 /* pa_parse_format needs the ',' prefix. */
3421 s--;
3422 flag = pa_parse_fp_format (&s);
3423 the_insn.fpof2 = flag;
3424 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
3425
9ecc05f0
JL		 3426 /* Handle a source FP operand format completer at 20. */
3427 case 'I':
3428 flag = pa_parse_fp_format (&s);
3429 the_insn.fpof1 = flag;
3430 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
3431
97e1581b
JL		 3432 /* Handle a floating point operand format at 26.
3433 Only allows single and double precision. */
3434 case 'H':
3435 flag = pa_parse_fp_format (&s);
3436 switch (flag)
3437 {
3438 case SGL:
3439 opcode |= 0x20;
3440 case DBL:
3441 the_insn.fpof1 = flag;
3442 continue;
252b5132 3443
97e1581b
JL		 3444 case QUAD:
3445 case ILLEGAL_FMT:
3446 default:
3447 as_bad (_("Invalid Floating Point Operand Format."));
3448 }
3449 break;
252b5132 3450
97e1581b
JL		 3451 /* Handle all floating point registers. */
3452 case 'f':
3453 switch (*++args)
3454 {
3455 /* Float target register. */
3456 case 't':
0f4f8b56
JL		 3457 /* This should be more strict. Small steps. */
3458 if (strict && *s != '%')
3459 break;
e7c1f43c 3460 num = pa_parse_number (&s, 0);
97e1581b
JL		 3461 CHECK_FIELD (num, 31, 0, 0);
3462 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
252b5132 3463
97e1581b
JL		 3464 /* Float target register with L/R selection. */
3465 case 'T':
252b5132 3466 {
97e1581b 3467 struct pa_11_fp_reg_struct result;
252b5132 3468
0f4f8b56
JL		 3469 /* This should be more strict. Small steps. */
3470 if (strict && *s != '%')
3471 break;
e7c1f43c 3472 pa_parse_number (&s, &result);
97e1581b
JL		 3473 CHECK_FIELD (result.number_part, 31, 0, 0);
3474 opcode |= result.number_part;
b53fcc20 3475
97e1581b
JL		 3476 /* 0x30 opcodes are FP arithmetic operation opcodes
3477 and need to be turned into 0x38 opcodes. This
3478 is not necessary for loads/stores. */
3479 if (need_pa11_opcode (&the_insn, &result)
3480 && ((opcode & 0xfc000000) == 0x30000000))
3481 opcode |= 1 << 27;
b53fcc20 3482
97e1581b
JL		 3483 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
3484 }
252b5132 3485
97e1581b
JL		 3486 /* Float operand 1. */
3487 case 'a':
3488 {
3489 struct pa_11_fp_reg_struct result;
252b5132 3490
0f4f8b56
JL		 3491 /* This should be more strict. Small steps. */
3492 if (strict && *s != '%')
3493 break;
e7c1f43c 3494 pa_parse_number (&s, &result);
97e1581b
JL		 3495 CHECK_FIELD (result.number_part, 31, 0, 0);
3496 opcode |= result.number_part << 21;
3497 if (need_pa11_opcode (&the_insn, &result))
3498 {
3499 opcode |= (result.l_r_select & 1) << 7;
3500 opcode |= 1 << 27;
3501 }
3502 continue;
3503 }
252b5132 3504
97e1581b 3505 /* Float operand 1 with L/R selection. */
e061d86f 3506 case 'X':
97e1581b 3507 case 'A':
252b5132 3508 {
97e1581b
JL		 3509 struct pa_11_fp_reg_struct result;
3510
0f4f8b56
JL		 3511 /* This should be more strict. Small steps. */
3512 if (strict && *s != '%')
3513 break;
e7c1f43c 3514 pa_parse_number (&s, &result);
97e1581b
JL		 3515 CHECK_FIELD (result.number_part, 31, 0, 0);
3516 opcode |= result.number_part << 21;
3517 opcode |= (result.l_r_select & 1) << 7;
3518 continue;
252b5132 3519 }
252b5132 3520
97e1581b
JL		 3521 /* Float operand 2. */
3522 case 'b':
3523 {
3524 struct pa_11_fp_reg_struct result;
252b5132 3525
0f4f8b56
JL		 3526 /* This should be more strict. Small steps. */
3527 if (strict && *s != '%')
3528 break;
e7c1f43c 3529 pa_parse_number (&s, &result);
97e1581b
JL		 3530 CHECK_FIELD (result.number_part, 31, 0, 0);
3531 opcode |= (result.number_part & 0x1f) << 16;
3532 if (need_pa11_opcode (&the_insn, &result))
3533 {
3534 opcode |= (result.l_r_select & 1) << 12;
3535 opcode |= 1 << 27;
3536 }
3537 continue;
3538 }
3539
3540 /* Float operand 2 with L/R selection. */
3541 case 'B':
252b5132 3542 {
97e1581b
JL		 3543 struct pa_11_fp_reg_struct result;
3544
0f4f8b56
JL		 3545 /* This should be more strict. Small steps. */
3546 if (strict && *s != '%')
3547 break;
e7c1f43c 3548 pa_parse_number (&s, &result);
97e1581b
JL		 3549 CHECK_FIELD (result.number_part, 31, 0, 0);
3550 opcode |= (result.number_part & 0x1f) << 16;
252b5132 3551 opcode |= (result.l_r_select & 1) << 12;
97e1581b 3552 continue;
252b5132 3553 }
252b5132 3554
97e1581b
JL		 3555 /* Float operand 3 for fmpyfadd, fmpynfadd. */
3556 case 'C':
3557 {
3558 struct pa_11_fp_reg_struct result;
3559 int regnum;
3560
0f4f8b56
JL		 3561 /* This should be more strict. Small steps. */
3562 if (strict && *s != '%')
3563 break;
e7c1f43c 3564 pa_parse_number (&s, &result);
97e1581b
JL		 3565 CHECK_FIELD (result.number_part, 31, 0, 0);
3566 opcode |= (result.number_part & 0x1c) << 11;
3567 opcode |= (result.number_part & 0x3) << 9;
3568 opcode |= (result.l_r_select & 1) << 8;
3569 continue;
3570 }
b53fcc20 3571
97e1581b
JL		 3572 /* Float mult operand 1 for fmpyadd, fmpysub */
3573 case 'i':
3574 {
3575 struct pa_11_fp_reg_struct result;
b53fcc20 3576
0f4f8b56
JL		 3577 /* This should be more strict. Small steps. */
3578 if (strict && *s != '%')
3579 break;
e7c1f43c 3580 pa_parse_number (&s, &result);
97e1581b
JL		 3581 CHECK_FIELD (result.number_part, 31, 0, 0);
3582 if (the_insn.fpof1 == SGL)
3583 {
3584 if (result.number_part < 16)
3585 {
3586 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3587 break;
3588 }
252b5132 3589
97e1581b
JL		 3590 result.number_part &= 0xF;
3591 result.number_part |= (result.l_r_select & 1) << 4;
3592 }
3593 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
3594 }
3595
3596 /* Float mult operand 2 for fmpyadd, fmpysub */
3597 case 'j':
252b5132 3598 {
97e1581b
JL		 3599 struct pa_11_fp_reg_struct result;
3600
0f4f8b56
JL		 3601 /* This should be more strict. Small steps. */
3602 if (strict && *s != '%')
3603 break;
e7c1f43c 3604 pa_parse_number (&s, &result);
97e1581b
JL		 3605 CHECK_FIELD (result.number_part, 31, 0, 0);
3606 if (the_insn.fpof1 == SGL)
252b5132 3607 {
97e1581b
JL		 3608 if (result.number_part < 16)
3609 {
3610 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3611 break;
3612 }
3613 result.number_part &= 0xF;
3614 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3615 }
97e1581b 3616 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
252b5132 3617 }
252b5132 3618
97e1581b
JL		 3619 /* Float mult target for fmpyadd, fmpysub */
3620 case 'k':
252b5132 3621 {
97e1581b
JL		 3622 struct pa_11_fp_reg_struct result;
3623
0f4f8b56
JL		 3624 /* This should be more strict. Small steps. */
3625 if (strict && *s != '%')
3626 break;
e7c1f43c 3627 pa_parse_number (&s, &result);
97e1581b
JL		 3628 CHECK_FIELD (result.number_part, 31, 0, 0);
3629 if (the_insn.fpof1 == SGL)
252b5132 3630 {
97e1581b
JL		 3631 if (result.number_part < 16)
3632 {
3633 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3634 break;
3635 }
3636 result.number_part &= 0xF;
3637 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3638 }
97e1581b 3639 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 0);
252b5132 3640 }
252b5132 3641
97e1581b
JL		 3642 /* Float add operand 1 for fmpyadd, fmpysub */
3643 case 'l':
252b5132 3644 {
97e1581b
JL		 3645 struct pa_11_fp_reg_struct result;
3646
0f4f8b56
JL		 3647 /* This should be more strict. Small steps. */
3648 if (strict && *s != '%')
3649 break;
e7c1f43c 3650 pa_parse_number (&s, &result);
97e1581b
JL		 3651 CHECK_FIELD (result.number_part, 31, 0, 0);
3652 if (the_insn.fpof1 == SGL)
252b5132 3653 {
97e1581b
JL		 3654 if (result.number_part < 16)
3655 {
3656 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3657 break;
3658 }
3659 result.number_part &= 0xF;
3660 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3661 }
97e1581b 3662 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
252b5132 3663 }
252b5132 3664
97e1581b
JL		 3665 /* Float add target for fmpyadd, fmpysub */
3666 case 'm':
252b5132 3667 {
97e1581b
JL		 3668 struct pa_11_fp_reg_struct result;
3669
0f4f8b56
JL		 3670 /* This should be more strict. Small steps. */
3671 if (strict && *s != '%')
3672 break;
e7c1f43c 3673 pa_parse_number (&s, &result);
97e1581b
JL		 3674 CHECK_FIELD (result.number_part, 31, 0, 0);
3675 if (the_insn.fpof1 == SGL)
252b5132 3676 {
97e1581b
JL		 3677 if (result.number_part < 16)
3678 {
3679 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
3680 break;
3681 }
3682 result.number_part &= 0xF;
3683 result.number_part |= (result.l_r_select & 1) << 4;
252b5132 3684 }
97e1581b 3685 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
252b5132 3686 }
252b5132 3687
71823da4
JL		 3688 /* Handle L/R register halves like 'x'. */
3689 case 'e':
3690 {
3691 struct pa_11_fp_reg_struct result;
3692
3693 if (strict && *s != '%')
3694 break;
3695 pa_parse_number (&s, &result);
3696 CHECK_FIELD (result.number_part, 31, 0, 0);
3697 opcode |= (result.number_part & 0x1f) << 16;
3698 if (need_pa11_opcode (&the_insn, &result))
3699 {
3700 opcode |= (result.l_r_select & 1) << 1;
3701 }
3702 continue;
97e1581b
JL		 3703 default:
3704 abort ();
3705 }
3706 break;
3707
3708 /* Handle L/R register halves like 'x'. */
3709 case 'e':
252b5132
RH		 3710 {
3711 struct pa_11_fp_reg_struct result;
3712
0f4f8b56
JL		 3713 /* This should be more strict. Small steps. */
3714 if (strict && *s != '%')
3715 break;
e7c1f43c 3716 pa_parse_number (&s, &result);
252b5132 3717 CHECK_FIELD (result.number_part, 31, 0, 0);
97e1581b
JL		 3718 opcode |= (result.number_part & 0x1f) << 16;
3719 if (need_pa11_opcode (&the_insn, &result))
252b5132 3720 {
97e1581b 3721 opcode |= (result.l_r_select & 1) << 1;
252b5132 3722 }
97e1581b 3723 continue;
252b5132
RH		 3724 }
3725
252b5132
RH		 3726 default:
3727 abort ();
3728 }
3729 break;
3730 }
3731
3732 failed:
3733 /* Check if the args matched. */
3734 if (match == FALSE)
3735 {
3736 if (&insn[1] - pa_opcodes < (int) NUMOPCODES
3737 && !strcmp (insn->name, insn[1].name))
3738 {
3739 ++insn;
3740 s = argstart;
3741 continue;
3742 }
3743 else
3744 {
3745 as_bad (_("Invalid operands %s"), error_message);
3746 return;
3747 }
3748 }
3749 break;
3750 }
3751
3752 the_insn.opcode = opcode;
3753}
3754
3755/* Turn a string in input_line_pointer into a floating point constant of type
3756 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
3757 emitted is stored in *sizeP . An error message or NULL is returned. */
3758
3759#define MAX_LITTLENUMS 6
3760
3761char *
3762md_atof (type, litP, sizeP)
3763 char type;
3764 char *litP;
3765 int *sizeP;
3766{
3767 int prec;
3768 LITTLENUM_TYPE words[MAX_LITTLENUMS];
3769 LITTLENUM_TYPE *wordP;
3770 char *t;
3771
3772 switch (type)
3773 {
3774
3775 case 'f':
3776 case 'F':
3777 case 's':
3778 case 'S':
3779 prec = 2;
3780 break;
3781
3782 case 'd':
3783 case 'D':
3784 case 'r':
3785 case 'R':
3786 prec = 4;
3787 break;
3788
3789 case 'x':
3790 case 'X':
3791 prec = 6;
3792 break;
3793
3794 case 'p':
3795 case 'P':
3796 prec = 6;
3797 break;
3798
3799 default:
3800 *sizeP = 0;
3801 return _("Bad call to MD_ATOF()");
3802 }
3803 t = atof_ieee (input_line_pointer, type, words);
3804 if (t)
3805 input_line_pointer = t;
3806 *sizeP = prec * sizeof (LITTLENUM_TYPE);
3807 for (wordP = words; prec--;)
3808 {
3809 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
3810 litP += sizeof (LITTLENUM_TYPE);
3811 }
3812 return NULL;
3813}
3814
3815/* Write out big-endian. */
3816
3817void
3818md_number_to_chars (buf, val, n)
3819 char *buf;
3820 valueT val;
3821 int n;
3822{
3823 number_to_chars_bigendian (buf, val, n);
3824}
3825
3826/* Translate internal representation of relocation info to BFD target
3827 format. */
3828
3829arelent **
3830tc_gen_reloc (section, fixp)
3831 asection *section;
3832 fixS *fixp;
3833{
3834 arelent *reloc;
3835 struct hppa_fix_struct *hppa_fixp;
3836 bfd_reloc_code_real_type code;
3837 static arelent *no_relocs = NULL;
3838 arelent **relocs;
3839 bfd_reloc_code_real_type **codes;
3840 int n_relocs;
3841 int i;
3842
3843 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
3844 if (fixp->fx_addsy == 0)
3845 return &no_relocs;
3846 assert (hppa_fixp != 0);
3847 assert (section != 0);
3848
3849 reloc = (arelent *) xmalloc (sizeof (arelent));
3850
a0f75b47
ILT		 3851 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3852 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3853 codes = (bfd_reloc_code_real_type **) hppa_gen_reloc_type (stdoutput,
3854 fixp->fx_r_type,
3855 hppa_fixp->fx_r_format,
3856 hppa_fixp->fx_r_field,
3857 fixp->fx_subsy != NULL,
a0f75b47 3858 symbol_get_bfdsym (fixp->fx_addsy));
252b5132
RH		 3859
3860 if (codes == NULL)
3861 abort ();
3862
3863 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
3864 ;
3865
3866 relocs = (arelent **) xmalloc (sizeof (arelent *) * n_relocs + 1);
3867 reloc = (arelent *) xmalloc (sizeof (arelent) * n_relocs);
3868 for (i = 0; i < n_relocs; i++)
3869 relocs[i] = &reloc[i];
3870
3871 relocs[n_relocs] = NULL;
3872
3873#ifdef OBJ_ELF
3874 switch (fixp->fx_r_type)
3875 {
3876 default:
3877 assert (n_relocs == 1);
3878
3879 code = *codes[0];
3880
a0f75b47
ILT		 3881 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3882 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3883 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
3884 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
3885 reloc->addend = 0; /* default */
3886
3887 assert (reloc->howto && code == reloc->howto->type);
3888
3889 /* Now, do any processing that is dependent on the relocation type. */
3890 switch (code)
3891 {
3892 case R_PARISC_DLTREL21L:
3893 case R_PARISC_DLTREL14R:
3894 case R_PARISC_DLTREL14F:
3895 case R_PARISC_PLABEL32:
3896 case R_PARISC_PLABEL21L:
3897 case R_PARISC_PLABEL14R:
3898 /* For plabel relocations, the addend of the
3899 relocation should be either 0 (no static link) or 2
3900 (static link required).
3901
3902 FIXME: We always assume no static link!
3903
3904 We also slam a zero addend into the DLT relative relocs;
3905 it doesn't make a lot of sense to use any addend since
3906 it gets you a different (eg unknown) DLT entry. */
3907 reloc->addend = 0;
3908 break;
3909
3910 case R_PARISC_PCREL21L:
3911 case R_PARISC_PCREL17R:
3912 case R_PARISC_PCREL17F:
3913 case R_PARISC_PCREL17C:
3914 case R_PARISC_PCREL14R:
3915 case R_PARISC_PCREL14F:
3916 /* The constant is stored in the instruction. */
3917 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3918 break;
3919 default:
3920 reloc->addend = fixp->fx_offset;
3921 break;
3922 }
3923 break;
3924 }
3925#else /* OBJ_SOM */
3926
3927 /* Walk over reach relocation returned by the BFD backend. */
3928 for (i = 0; i < n_relocs; i++)
3929 {
3930 code = *codes[i];
3931
398e8c25
ILT		 3932 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3933 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3934 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
3935 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3936
3937 switch (code)
3938 {
3939 case R_COMP2:
3940 /* The only time we ever use a R_COMP2 fixup is for the difference
3941 of two symbols. With that in mind we fill in all four
3942 relocs now and break out of the loop. */
3943 assert (i == 1);
993142d5 3944 relocs[0]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3945 relocs[0]->howto = bfd_reloc_type_lookup (stdoutput, *codes[0]);
3946 relocs[0]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3947 relocs[0]->addend = 0;
993142d5
ILT		 3948 relocs[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3949 *relocs[1]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 3950 relocs[1]->howto = bfd_reloc_type_lookup (stdoutput, *codes[1]);
3951 relocs[1]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3952 relocs[1]->addend = 0;
993142d5
ILT		 3953 relocs[2]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
3954 *relocs[2]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);
252b5132
RH		 3955 relocs[2]->howto = bfd_reloc_type_lookup (stdoutput, *codes[2]);
3956 relocs[2]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3957 relocs[2]->addend = 0;
993142d5 3958 relocs[3]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3959 relocs[3]->howto = bfd_reloc_type_lookup (stdoutput, *codes[3]);
3960 relocs[3]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3961 relocs[3]->addend = 0;
993142d5 3962 relocs[4]->sym_ptr_ptr = (asymbol **) &(bfd_abs_symbol);
252b5132
RH		 3963 relocs[4]->howto = bfd_reloc_type_lookup (stdoutput, *codes[4]);
3964 relocs[4]->address = fixp->fx_frag->fr_address + fixp->fx_where;
3965 relocs[4]->addend = 0;
3966 goto done;
3967 case R_PCREL_CALL:
3968 case R_ABS_CALL:
3969 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
3970 break;
3971
3972 case R_DLT_REL:
3973 case R_DATA_PLABEL:
3974 case R_CODE_PLABEL:
3975 /* For plabel relocations, the addend of the
3976 relocation should be either 0 (no static link) or 2
3977 (static link required).
3978
3979 FIXME: We always assume no static link!
3980
3981 We also slam a zero addend into the DLT relative relocs;
3982 it doesn't make a lot of sense to use any addend since
3983 it gets you a different (eg unknown) DLT entry. */
3984 relocs[i]->addend = 0;
3985 break;
3986
3987 case R_N_MODE:
3988 case R_S_MODE:
3989 case R_D_MODE:
3990 case R_R_MODE:
3991 case R_FSEL:
3992 case R_LSEL:
3993 case R_RSEL:
3994 case R_BEGIN_BRTAB:
3995 case R_END_BRTAB:
3996 case R_BEGIN_TRY:
3997 case R_N0SEL:
3998 case R_N1SEL:
3999 /* There is no symbol or addend associated with these fixups. */
993142d5
ILT		 4000 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
4001 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
252b5132
RH		 4002 relocs[i]->addend = 0;
4003 break;
4004
4005 case R_END_TRY:
4006 case R_ENTRY:
4007 case R_EXIT:
4008 /* There is no symbol associated with these fixups. */
993142d5
ILT		 4009 relocs[i]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
4010 *relocs[i]->sym_ptr_ptr = symbol_get_bfdsym (dummy_symbol);
252b5132
RH		 4011 relocs[i]->addend = fixp->fx_offset;
4012 break;
4013
4014 default:
4015 relocs[i]->addend = fixp->fx_offset;
4016 }
4017 }
4018
4019 done:
4020#endif
4021
4022 return relocs;
4023}
4024
4025/* Process any machine dependent frag types. */
4026
4027void
4028md_convert_frag (abfd, sec, fragP)
4029 register bfd *abfd;
4030 register asection *sec;
4031 register fragS *fragP;
4032{
4033 unsigned int address;
4034
4035 if (fragP->fr_type == rs_machine_dependent)
4036 {
4037 switch ((int) fragP->fr_subtype)
4038 {
4039 case 0:
4040 fragP->fr_type = rs_fill;
4041 know (fragP->fr_var == 1);
4042 know (fragP->fr_next);
4043 address = fragP->fr_address + fragP->fr_fix;
4044 if (address % fragP->fr_offset)
4045 {
4046 fragP->fr_offset =
4047 fragP->fr_next->fr_address
4048 - fragP->fr_address
4049 - fragP->fr_fix;
4050 }
4051 else
4052 fragP->fr_offset = 0;
4053 break;
4054 }
4055 }
4056}
4057
4058/* Round up a section size to the appropriate boundary. */
4059
4060valueT
4061md_section_align (segment, size)
4062 asection *segment;
4063 valueT size;
4064{
4065 int align = bfd_get_section_alignment (stdoutput, segment);
4066 int align2 = (1 << align) - 1;
4067
4068 return (size + align2) & ~align2;
4069}
4070
4071/* Return the approximate size of a frag before relaxation has occurred. */
4072int
4073md_estimate_size_before_relax (fragP, segment)
4074 register fragS *fragP;
4075 asection *segment;
4076{
4077 int size;
4078
4079 size = 0;
4080
4081 while ((fragP->fr_fix + size) % fragP->fr_offset)
4082 size++;
4083
4084 return size;
4085}
4086\f
4087CONST char *md_shortopts = "";
4088struct option md_longopts[] = {
4089 {NULL, no_argument, NULL, 0}
4090};
4091size_t md_longopts_size = sizeof(md_longopts);
4092
4093int
4094md_parse_option (c, arg)
4095 int c;
4096 char *arg;
4097{
4098 return 0;
4099}
4100
4101void
4102md_show_usage (stream)
4103 FILE *stream;
4104{
4105}
4106\f
4107/* We have no need to default values of symbols. */
4108
4109symbolS *
4110md_undefined_symbol (name)
4111 char *name;
4112{
4113 return 0;
4114}
4115
4116/* Apply a fixup to an instruction. */
4117
4118int
4119md_apply_fix (fixP, valp)
4120 fixS *fixP;
4121 valueT *valp;
4122{
4123 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
4124 struct hppa_fix_struct *hppa_fixP;
4125 long new_val, result = 0;
4126 unsigned int w1, w2, w, resulti;
4127
4128 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
4129 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
4130 never be "applied" (they are just markers). Likewise for
4131 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
4132#ifdef OBJ_SOM
4133 if (fixP->fx_r_type == R_HPPA_ENTRY
4134 || fixP->fx_r_type == R_HPPA_EXIT
4135 || fixP->fx_r_type == R_HPPA_BEGIN_BRTAB
4136 || fixP->fx_r_type == R_HPPA_END_BRTAB
4137 || fixP->fx_r_type == R_HPPA_BEGIN_TRY)
4138 return 1;
4139
4140 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
4141 fixups are considered not adjustable, which in turn causes
4142 adjust_reloc_syms to not set fx_offset. Ugh. */
4143 if (fixP->fx_r_type == R_HPPA_END_TRY)
4144 {
4145 fixP->fx_offset = *valp;
4146 return 1;
4147 }
4148#endif
4149
4150 /* There should have been an HPPA specific fixup associated
4151 with the GAS fixup. */
4152 if (hppa_fixP)
4153 {
4154 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
4155 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
4156
4157 /* If there is a symbol associated with this fixup, then it's something
4158 which will need a SOM relocation (except for some PC-relative relocs).
4159 In such cases we should treat the "val" or "addend" as zero since it
4160 will be added in as needed from fx_offset in tc_gen_reloc. */
4161 if ((fixP->fx_addsy != NULL
4162 || fixP->fx_r_type == R_HPPA_NONE)
4163#ifdef OBJ_SOM
4164 && fmt != 32
4165#endif
4166 )
90700a53 4167 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
252b5132
RH		 4168#ifdef OBJ_SOM
4169 /* These field selectors imply that we do not want an addend. */
4170 else if (hppa_fixP->fx_r_field == e_psel
4171 || hppa_fixP->fx_r_field == e_rpsel
4172 || hppa_fixP->fx_r_field == e_lpsel
4173 || hppa_fixP->fx_r_field == e_tsel
4174 || hppa_fixP->fx_r_field == e_rtsel
4175 || hppa_fixP->fx_r_field == e_ltsel)
90700a53 4176 new_val = ((fmt == 12 || fmt == 17 || fmt == 22) ? 8 : 0);
252b5132
RH		 4177 /* This is truely disgusting. The machine independent code blindly
4178 adds in the value of the symbol being relocated against. Damn! */
4179 else if (fmt == 32
4180 && fixP->fx_addsy != NULL
4181 && S_GET_SEGMENT (fixP->fx_addsy) != bfd_com_section_ptr)
4182 new_val = hppa_field_adjust (*valp - S_GET_VALUE (fixP->fx_addsy),
4183 0, hppa_fixP->fx_r_field);
4184#endif
4185 else
4186 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
4187
4188 /* Handle pc-relative exceptions from above. */
4189#define arg_reloc_stub_needed(CALLER, CALLEE) \
4190 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
90700a53 4191 if ((fmt == 12 || fmt == 17 || fmt == 22)
252b5132
RH		 4192 && fixP->fx_addsy
4193 && fixP->fx_pcrel
49863f82 4194#ifdef OBJ_SOM
252b5132 4195 && !arg_reloc_stub_needed ((long) ((obj_symbol_type *)
a0f75b47
ILT		 4196 symbol_get_bfdsym (fixP->fx_addsy))->tc_data.ap.hppa_arg_reloc,
4197 hppa_fixP->fx_arg_reloc)
49863f82 4198#endif
90700a53 4199 && (((int)(*valp) > -262144 && (int)(*valp) < 262143) && fmt != 22)
252b5132
RH		 4200 && S_GET_SEGMENT (fixP->fx_addsy) == hppa_fixP->segment
4201 && !(fixP->fx_subsy
4202 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
4203
4204 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
4205#undef arg_reloc_stub_needed
4206
4207 switch (fmt)
4208 {
4209 /* Handle all opcodes with the 'j' operand type. */
4210 case 14:
4211 CHECK_FIELD (new_val, 8191, -8192, 0);
4212
4213 /* Mask off 14 bits to be changed. */
4214 bfd_put_32 (stdoutput,
4215 bfd_get_32 (stdoutput, buf) & 0xffffc000,
4216 buf);
4217 low_sign_unext (new_val, 14, &resulti);
4218 result = resulti;
4219 break;
4220
4221 /* Handle all opcodes with the 'k' operand type. */
4222 case 21:
4223 CHECK_FIELD (new_val, 2097152, 0, 0);
4224
4225 /* Mask off 21 bits to be changed. */
4226 bfd_put_32 (stdoutput,
4227 bfd_get_32 (stdoutput, buf) & 0xffe00000,
4228 buf);
4229 dis_assemble_21 (new_val, &resulti);
4230 result = resulti;
4231 break;
4232
4233 /* Handle all the opcodes with the 'i' operand type. */
4234 case 11:
4235 CHECK_FIELD (new_val, 1023, -1023, 0);
4236
4237 /* Mask off 11 bits to be changed. */
4238 bfd_put_32 (stdoutput,
4239 bfd_get_32 (stdoutput, buf) & 0xffff800,
4240 buf);
4241 low_sign_unext (new_val, 11, &resulti);
4242 result = resulti;
4243 break;
4244
4245 /* Handle all the opcodes with the 'w' operand type. */
4246 case 12:
4247 CHECK_FIELD (new_val, 8199, -8184, 0);
4248
4249 /* Mask off 11 bits to be changed. */
4250 sign_unext ((new_val - 8) >> 2, 12, &resulti);
4251 bfd_put_32 (stdoutput,
4252 bfd_get_32 (stdoutput, buf) & 0xffffe002,
4253 buf);
4254
4255 dis_assemble_12 (resulti, &w1, &w);
4256 result = ((w1 << 2) | w);
4257 break;
4258
4259 /* Handle some of the opcodes with the 'W' operand type. */
4260 case 17:
4261 {
4262 int distance = *valp;
4263
4264 CHECK_FIELD (new_val, 262143, -262144, 0);
4265
4266 /* If this is an absolute branch (ie no link) with an out of
4267 range target, then we want to complain. */
4268 if (fixP->fx_r_type == R_HPPA_PCREL_CALL
4269 && (distance > 262143 || distance < -262144)
4270 && (bfd_get_32 (stdoutput, buf) & 0xffe00000) == 0xe8000000)
4271 CHECK_FIELD (distance, 262143, -262144, 0);
4272
4273 /* Mask off 17 bits to be changed. */
4274 bfd_put_32 (stdoutput,
4275 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
4276 buf);
4277 sign_unext ((new_val - 8) >> 2, 17, &resulti);
4278 dis_assemble_17 (resulti, &w1, &w2, &w);
4279 result = ((w2 << 2) | (w1 << 16) | w);
4280 break;
4281 }
4282
77c02e18
JL		 4283 case 22:
4284 {
4285 int distance = *valp, w3;
4286
4287 CHECK_FIELD (new_val, 8388607, -8388608, 0);
4288
4289 /* If this is an absolute branch (ie no link) with an out of
4290 range target, then we want to complain. */
4291 if (fixP->fx_r_type == R_HPPA_PCREL_CALL
4292 && (distance > 8388607 || distance < -8388608)
4293 && (bfd_get_32 (stdoutput, buf) & 0xffe00000) == 0xe8000000)
4294 CHECK_FIELD (distance, 8388607, -8388608, 0);
4295
4296 /* Mask off 22 bits to be changed. */
4297 bfd_put_32 (stdoutput,
4298 bfd_get_32 (stdoutput, buf) & 0xfc00e002,
4299 buf);
4300 sign_unext ((new_val - 8) >> 2, 22, &resulti);
4301 dis_assemble_22 (resulti, &w3, &w1, &w2, &w);
4302 result = ((w3 << 21) | (w2 << 2) | (w1 << 16) | w);
4303 break;
4304 }
4305
252b5132
RH		 4306 case 32:
4307 result = 0;
4308 bfd_put_32 (stdoutput, new_val, buf);
4309 break;
4310
4311 default:
4312 as_bad (_("Unknown relocation encountered in md_apply_fix."));
4313 return 0;
4314 }
4315
4316 /* Insert the relocation. */
4317 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
4318 return 1;
4319 }
4320 else
4321 {
4322 printf (_("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n"),
4323 (unsigned int) fixP, fixP->fx_r_type);
4324 return 0;
4325 }
4326}
4327
4328/* Exactly what point is a PC-relative offset relative TO?
4329 On the PA, they're relative to the address of the offset. */
4330
4331long
4332md_pcrel_from (fixP)
4333 fixS *fixP;
4334{
4335 return fixP->fx_where + fixP->fx_frag->fr_address;
4336}
4337
4338/* Return nonzero if the input line pointer is at the end of
4339 a statement. */
4340
4341static int
4342is_end_of_statement ()
4343{
4344 return ((*input_line_pointer == '\n')
4345 || (*input_line_pointer == ';')
4346 || (*input_line_pointer == '!'));
4347}
4348
4349/* Read a number from S. The number might come in one of many forms,
4350 the most common will be a hex or decimal constant, but it could be
4351 a pre-defined register (Yuk!), or an absolute symbol.
4352
4353 Return a number or -1 for failure.
4354
4355 When parsing PA-89 FP register numbers RESULT will be
4356 the address of a structure to return information about
4357 L/R half of FP registers, store results there as appropriate.
4358
4359 pa_parse_number can not handle negative constants and will fail
4360 horribly if it is passed such a constant. */
4361
4362static int
4363pa_parse_number (s, result)
4364 char **s;
4365 struct pa_11_fp_reg_struct *result;
4366{
4367 int num;
4368 char *name;
4369 char c;
4370 symbolS *sym;
4371 int status;
4372 char *p = *s;
4373
4374 /* Skip whitespace before the number. */
4375 while (*p == ' ' || *p == '\t')
4376 p = p + 1;
4377
4378 /* Store info in RESULT if requested by caller. */
4379 if (result)
4380 {
4381 result->number_part = -1;
4382 result->l_r_select = -1;
4383 }
4384 num = -1;
4385
4386 if (isdigit (*p))
4387 {
4388 /* Looks like a number. */
4389 num = 0;
4390
4391 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
4392 {
4393 /* The number is specified in hex. */
4394 p += 2;
4395 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
4396 || ((*p >= 'A') && (*p <= 'F')))
4397 {
4398 if (isdigit (*p))
4399 num = num * 16 + *p - '0';
4400 else if (*p >= 'a' && *p <= 'f')
4401 num = num * 16 + *p - 'a' + 10;
4402 else
4403 num = num * 16 + *p - 'A' + 10;
4404 ++p;
4405 }
4406 }
4407 else
4408 {
4409 /* The number is specified in decimal. */
4410 while (isdigit (*p))
4411 {
4412 num = num * 10 + *p - '0';
4413 ++p;
4414 }
4415 }
4416
4417 /* Store info in RESULT if requested by the caller. */
4418 if (result)
4419 {
4420 result->number_part = num;
4421
4422 if (IS_R_SELECT (p))
4423 {
4424 result->l_r_select = 1;
4425 ++p;
4426 }
4427 else if (IS_L_SELECT (p))
4428 {
4429 result->l_r_select = 0;
4430 ++p;
4431 }
4432 else
4433 result->l_r_select = 0;
4434 }
4435 }
4436 else if (*p == '%')
4437 {
4438 /* The number might be a predefined register. */
4439 num = 0;
4440 name = p;
4441 p++;
4442 c = *p;
4443 /* Tege hack: Special case for general registers as the general
4444 code makes a binary search with case translation, and is VERY
4445 slow. */
4446 if (c == 'r')
4447 {
4448 p++;
4449 if (*p == 'e' && *(p + 1) == 't'
4450 && (*(p + 2) == '0' || *(p + 2) == '1'))
4451 {
4452 p += 2;
4453 num = *p - '0' + 28;
4454 p++;
4455 }
4456 else if (*p == 'p')
4457 {
4458 num = 2;
4459 p++;
4460 }
4461 else if (!isdigit (*p))
4462 {
4463 if (print_errors)
4464 as_bad (_("Undefined register: '%s'."), name);
4465 num = -1;
4466 }
4467 else
4468 {
4469 do
4470 num = num * 10 + *p++ - '0';
4471 while (isdigit (*p));
4472 }
4473 }
4474 else
4475 {
4476 /* Do a normal register search. */
4477 while (is_part_of_name (c))
4478 {
4479 p = p + 1;
4480 c = *p;
4481 }
4482 *p = 0;
4483 status = reg_name_search (name);
4484 if (status >= 0)
4485 num = status;
4486 else
4487 {
4488 if (print_errors)
4489 as_bad (_("Undefined register: '%s'."), name);
4490 num = -1;
4491 }
4492 *p = c;
4493 }
4494
4495 /* Store info in RESULT if requested by caller. */
4496 if (result)
4497 {
4498 result->number_part = num;
4499 if (IS_R_SELECT (p - 1))
4500 result->l_r_select = 1;
4501 else if (IS_L_SELECT (p - 1))
4502 result->l_r_select = 0;
4503 else
4504 result->l_r_select = 0;
4505 }
4506 }
4507 else
4508 {
4509 /* And finally, it could be a symbol in the absolute section which
4510 is effectively a constant. */
4511 num = 0;
4512 name = p;
4513 c = *p;
4514 while (is_part_of_name (c))
4515 {
4516 p = p + 1;
4517 c = *p;
4518 }
4519 *p = 0;
4520 if ((sym = symbol_find (name)) != NULL)
4521 {
4522 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
4523 num = S_GET_VALUE (sym);
4524 else
4525 {
4526 if (print_errors)
4527 as_bad (_("Non-absolute symbol: '%s'."), name);
4528 num = -1;
4529 }
4530 }
4531 else
4532 {
4533 /* There is where we'd come for an undefined symbol
4534 or for an empty string. For an empty string we
4535 will return zero. That's a concession made for
4536 compatability with the braindamaged HP assemblers. */
4537 if (*name == 0)
4538 num = 0;
4539 else
4540 {
4541 if (print_errors)
4542 as_bad (_("Undefined absolute constant: '%s'."), name);
4543 num = -1;
4544 }
4545 }
4546 *p = c;
4547
4548 /* Store info in RESULT if requested by caller. */
4549 if (result)
4550 {
4551 result->number_part = num;
4552 if (IS_R_SELECT (p - 1))
4553 result->l_r_select = 1;
4554 else if (IS_L_SELECT (p - 1))
4555 result->l_r_select = 0;
4556 else
4557 result->l_r_select = 0;
4558 }
4559 }
4560
4561 *s = p;
4562 return num;
4563}
4564
4565#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
4566
4567/* Given NAME, find the register number associated with that name, return
4568 the integer value associated with the given name or -1 on failure. */
4569
4570static int
4571reg_name_search (name)
4572 char *name;
4573{
4574 int middle, low, high;
4575 int cmp;
4576
4577 low = 0;
4578 high = REG_NAME_CNT - 1;
4579
4580 do
4581 {
4582 middle = (low + high) / 2;
4583 cmp = strcasecmp (name, pre_defined_registers[middle].name);
4584 if (cmp < 0)
4585 high = middle - 1;
4586 else if (cmp > 0)
4587 low = middle + 1;
4588 else
4589 return pre_defined_registers[middle].value;
4590 }
4591 while (low <= high);
4592
4593 return -1;
4594}
4595
4596
4597/* Return nonzero if the given INSN and L/R information will require
4598 a new PA-1.1 opcode. */
4599
4600static int
4601need_pa11_opcode (insn, result)
4602 struct pa_it *insn;
4603 struct pa_11_fp_reg_struct *result;
4604{
4605 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
4606 {
4607 /* If this instruction is specific to a particular architecture,
4608 then set a new architecture. */
4609 if (bfd_get_mach (stdoutput) < pa11)
4610 {
4611 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, pa11))
4612 as_warn (_("could not update architecture and machine"));
4613 }
4614 return TRUE;
4615 }
4616 else
4617 return FALSE;
4618}
4619
4620/* Parse a condition for a fcmp instruction. Return the numerical
4621 code associated with the condition. */
4622
4623static int
4624pa_parse_fp_cmp_cond (s)
4625 char **s;
4626{
4627 int cond, i;
4628
4629 cond = 0;
4630
4631 for (i = 0; i < 32; i++)
4632 {
4633 if (strncasecmp (*s, fp_cond_map[i].string,
4634 strlen (fp_cond_map[i].string)) == 0)
4635 {
4636 cond = fp_cond_map[i].cond;
4637 *s += strlen (fp_cond_map[i].string);
4638 /* If not a complete match, back up the input string and
4639 report an error. */
4640 if (**s != ' ' && **s != '\t')
4641 {
4642 *s -= strlen (fp_cond_map[i].string);
4643 break;
4644 }
4645 while (**s == ' ' || **s == '\t')
4646 *s = *s + 1;
4647 return cond;
4648 }
4649 }
4650
4651 as_bad (_("Invalid FP Compare Condition: %s"), *s);
4652
4653 /* Advance over the bogus completer. */
4654 while (**s != ',' && **s != ' ' && **s != '\t')
4655 *s += 1;
4656
4657 return 0;
4658}
4659
1cf6ae67
JL		 4660/* Parse a graphics test complete for ftest. */
4661
4662static int
4663pa_parse_ftest_gfx_completer (s)
4664 char **s;
4665{
4666 int value;
4667
4668 value = 0;
4669 if (strncasecmp (*s, "acc8", 4) == 0)
4670 {
4671 value = 5;
4672 *s += 4;
4673 }
4674 else if (strncasecmp (*s, "acc6", 4) == 0)
4675 {
4676 value = 9;
4677 *s += 4;
4678 }
4679 else if (strncasecmp (*s, "acc4", 4) == 0)
4680 {
4681 value = 13;
4682 *s += 4;
4683 }
4684 else if (strncasecmp (*s, "acc2", 4) == 0)
4685 {
4686 value = 17;
4687 *s += 4;
4688 }
4689 else if (strncasecmp (*s, "acc", 3) == 0)
4690 {
4691 value = 1;
4692 *s += 3;
4693 }
4694 else if (strncasecmp (*s, "rej8", 4) == 0)
4695 {
4696 value = 6;
4697 *s += 4;
4698 }
4699 else if (strncasecmp (*s, "rej", 3) == 0)
4700 {
4701 value = 2;
4702 *s += 3;
4703 }
4704 else
4705 {
4706 value = 0;
4707 as_bad (_("Invalid FTEST completer: %s"), *s);
4708 }
4709
4710 return value;
4711}
4712
4713/* Parse an FP operand format completer returning the completer
4714 type. */
4715
4716static fp_operand_format
4717pa_parse_fp_cnv_format (s)
4718 char **s;
4719{
4720 int format;
4721
4722 format = SGL;
4723 if (**s == ',')
4724 {
4725 *s += 1;
4726 if (strncasecmp (*s, "sgl", 3) == 0)
4727 {
4728 format = SGL;
4729 *s += 4;
4730 }
4731 else if (strncasecmp (*s, "dbl", 3) == 0)
4732 {
4733 format = DBL;
4734 *s += 4;
4735 }
4736 else if (strncasecmp (*s, "quad", 4) == 0)
4737 {
4738 format = QUAD;
4739 *s += 5;
4740 }
4741 else if (strncasecmp (*s, "w", 1) == 0)
4742 {
4743 format = W;
4744 *s += 2;
4745 }
4746 else if (strncasecmp (*s, "uw", 2) == 0)
4747 {
4748 format = UW;
4749 *s += 3;
4750 }
4751 else if (strncasecmp (*s, "dw", 2) == 0)
4752 {
4753 format = DW;
4754 *s += 3;
4755 }
4756 else if (strncasecmp (*s, "udw", 3) == 0)
4757 {
4758 format = UDW;
4759 *s += 4;
4760 }
4761 else if (strncasecmp (*s, "qw", 2) == 0)
4762 {
4763 format = QW;
4764 *s += 3;
4765 }
4766 else if (strncasecmp (*s, "uqw", 3) == 0)
4767 {
4768 format = UQW;
4769 *s += 4;
4770 }
4771 else
4772 {
4773 format = ILLEGAL_FMT;
4774 as_bad (_("Invalid FP Operand Format: %3s"), *s);
4775 }
4776 }
4777
4778 return format;
4779}
252b5132
RH		 4780
4781/* Parse an FP operand format completer returning the completer
4782 type. */
4783
4784static fp_operand_format
4785pa_parse_fp_format (s)
4786 char **s;
4787{
4788 int format;
4789
4790 format = SGL;
4791 if (**s == ',')
4792 {
4793 *s += 1;
4794 if (strncasecmp (*s, "sgl", 3) == 0)
4795 {
4796 format = SGL;
4797 *s += 4;
4798 }
4799 else if (strncasecmp (*s, "dbl", 3) == 0)
4800 {
4801 format = DBL;
4802 *s += 4;
4803 }
4804 else if (strncasecmp (*s, "quad", 4) == 0)
4805 {
4806 format = QUAD;
4807 *s += 5;
4808 }
4809 else
4810 {
4811 format = ILLEGAL_FMT;
4812 as_bad (_("Invalid FP Operand Format: %3s"), *s);
4813 }
4814 }
4815
4816 return format;
4817}
4818
4819/* Convert from a selector string into a selector type. */
4820
4821static int
4822pa_chk_field_selector (str)
4823 char **str;
4824{
4825 int middle, low, high;
4826 int cmp;
4827 char name[4];
4828
4829 /* Read past any whitespace. */
4830 /* FIXME: should we read past newlines and formfeeds??? */
4831 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
4832 *str = *str + 1;
4833
4834 if ((*str)[1] == '\'' || (*str)[1] == '%')
4835 name[0] = tolower ((*str)[0]),
4836 name[1] = 0;
4837 else if ((*str)[2] == '\'' || (*str)[2] == '%')
4838 name[0] = tolower ((*str)[0]),
4839 name[1] = tolower ((*str)[1]),
4840 name[2] = 0;
252b5132
RH		 4841 else if ((*str)[3] == '\'' || (*str)[3] == '%')
4842 name[0] = tolower ((*str)[0]),
4843 name[1] = tolower ((*str)[1]),
4844 name[2] = tolower ((*str)[2]),
4845 name[3] = 0;
252b5132
RH		 4846 else
4847 return e_fsel;
4848
4849 low = 0;
4850 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
4851
4852 do
4853 {
4854 middle = (low + high) / 2;
4855 cmp = strcmp (name, selector_table[middle].prefix);
4856 if (cmp < 0)
4857 high = middle - 1;
4858 else if (cmp > 0)
4859 low = middle + 1;
4860 else
4861 {
4862 *str += strlen (name) + 1;
4863#ifndef OBJ_SOM
4864 if (selector_table[middle].field_selector == e_nsel)
4865 return e_fsel;
4866#endif
4867 return selector_table[middle].field_selector;
4868 }
4869 }
4870 while (low <= high);
4871
4872 return e_fsel;
4873}
4874
4875/* Mark (via expr_end) the end of an expression (I think). FIXME. */
4876
4877static int
4878get_expression (str)
4879 char *str;
4880{
4881 char *save_in;
4882 asection *seg;
4883
4884 save_in = input_line_pointer;
4885 input_line_pointer = str;
4886 seg = expression (&the_insn.exp);
4887 if (!(seg == absolute_section
4888 || seg == undefined_section
4889 || SEG_NORMAL (seg)))
4890 {
4891 as_warn (_("Bad segment in expression."));
4892 expr_end = input_line_pointer;
4893 input_line_pointer = save_in;
4894 return 1;
4895 }
4896 expr_end = input_line_pointer;
4897 input_line_pointer = save_in;
4898 return 0;
4899}
4900
4901/* Mark (via expr_end) the end of an absolute expression. FIXME. */
4902static int
4903pa_get_absolute_expression (insn, strp)
4904 struct pa_it *insn;
4905 char **strp;
4906{
4907 char *save_in;
4908
4909 insn->field_selector = pa_chk_field_selector (strp);
4910 save_in = input_line_pointer;
4911 input_line_pointer = *strp;
4912 expression (&insn->exp);
4913 /* This is not perfect, but is a huge improvement over doing nothing.
4914
4915 The PA assembly syntax is ambigious in a variety of ways. Consider
4916 this string "4 %r5" Is that the number 4 followed by the register
4917 r5, or is that 4 MOD 5?
4918
4919 If we get a modulo expresion When looking for an absolute, we try
4920 again cutting off the input string at the first whitespace character. */
4921 if (insn->exp.X_op == O_modulus)
4922 {
4923 char *s, c;
4924 int retval;
4925
4926 input_line_pointer = *strp;
4927 s = *strp;
4928 while (*s != ',' && *s != ' ' && *s != '\t')
4929 s++;
4930
4931 c = *s;
4932 *s = 0;
4933
4934 retval = pa_get_absolute_expression (insn, strp);
4935
4936 input_line_pointer = save_in;
4937 *s = c;
4938 return evaluate_absolute (insn);
4939 }
0f4f8b56
JL		 4940 /* When in strict mode we have a non-match, fix up the pointers
4941 and return to our caller. */
4942 if (insn->exp.X_op != O_constant && strict)
4943 {
4944 expr_end = input_line_pointer;
4945 input_line_pointer = save_in;
4946 return 0;
4947 }
252b5132
RH		 4948 if (insn->exp.X_op != O_constant)
4949 {
4950 as_bad (_("Bad segment (should be absolute)."));
4951 expr_end = input_line_pointer;
4952 input_line_pointer = save_in;
4953 return 0;
4954 }
4955 expr_end = input_line_pointer;
4956 input_line_pointer = save_in;
4957 return evaluate_absolute (insn);
4958}
4959
4960/* Evaluate an absolute expression EXP which may be modified by
4961 the selector FIELD_SELECTOR. Return the value of the expression. */
4962static int
4963evaluate_absolute (insn)
4964 struct pa_it *insn;
4965{
4966 int value;
4967 expressionS exp;
4968 int field_selector = insn->field_selector;
4969
4970 exp = insn->exp;
4971 value = exp.X_add_number;
4972
4973 switch (field_selector)
4974 {
4975 /* No change. */
4976 case e_fsel:
4977 break;
4978
4979 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
4980 case e_lssel:
4981 if (value & 0x00000400)
4982 value += 0x800;
4983 value = (value & 0xfffff800) >> 11;
4984 break;
4985
4986 /* Sign extend from bit 21. */
4987 case e_rssel:
4988 if (value & 0x00000400)
4989 value |= 0xfffff800;
4990 else
4991 value &= 0x7ff;
4992 break;
4993
4994 /* Arithmetic shift right 11 bits. */
4995 case e_lsel:
4996 value = (value & 0xfffff800) >> 11;
4997 break;
4998
4999 /* Set bits 0-20 to zero. */
5000 case e_rsel:
5001 value = value & 0x7ff;
5002 break;
5003
5004 /* Add 0x800 and arithmetic shift right 11 bits. */
5005 case e_ldsel:
5006 value += 0x800;
5007 value = (value & 0xfffff800) >> 11;
5008 break;
5009
5010 /* Set bitgs 0-21 to one. */
5011 case e_rdsel:
5012 value |= 0xfffff800;
5013 break;
5014
5015#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
5016 case e_rrsel:
5017 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
5018 break;
5019
5020 case e_lrsel:
5021 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
5022 break;
5023#undef RSEL_ROUND
5024
5025 default:
5026 BAD_CASE (field_selector);
5027 break;
5028 }
5029 return value;
5030}
5031
5032/* Given an argument location specification return the associated
5033 argument location number. */
5034
5035static unsigned int
5036pa_build_arg_reloc (type_name)
5037 char *type_name;
5038{
5039
5040 if (strncasecmp (type_name, "no", 2) == 0)
5041 return 0;
5042 if (strncasecmp (type_name, "gr", 2) == 0)
5043 return 1;
5044 else if (strncasecmp (type_name, "fr", 2) == 0)
5045 return 2;
5046 else if (strncasecmp (type_name, "fu", 2) == 0)
5047 return 3;
5048 else
5049 as_bad (_("Invalid argument location: %s\n"), type_name);
5050
5051 return 0;
5052}
5053
5054/* Encode and return an argument relocation specification for
5055 the given register in the location specified by arg_reloc. */
5056
5057static unsigned int
5058pa_align_arg_reloc (reg, arg_reloc)
5059 unsigned int reg;
5060 unsigned int arg_reloc;
5061{
5062 unsigned int new_reloc;
5063
5064 new_reloc = arg_reloc;
5065 switch (reg)
5066 {
5067 case 0:
5068 new_reloc <<= 8;
5069 break;
5070 case 1:
5071 new_reloc <<= 6;
5072 break;
5073 case 2:
5074 new_reloc <<= 4;
5075 break;
5076 case 3:
5077 new_reloc <<= 2;
5078 break;
5079 default:
5080 as_bad (_("Invalid argument description: %d"), reg);
5081 }
5082
5083 return new_reloc;
5084}
5085
5086/* Parse a PA nullification completer (,n). Return nonzero if the
5087 completer was found; return zero if no completer was found. */
5088
5089static int
5090pa_parse_nullif (s)
5091 char **s;
5092{
5093 int nullif;
5094
5095 nullif = 0;
5096 if (**s == ',')
5097 {
5098 *s = *s + 1;
5099 if (strncasecmp (*s, "n", 1) == 0)
5100 nullif = 1;
5101 else
5102 {
5103 as_bad (_("Invalid Nullification: (%c)"), **s);
5104 nullif = 0;
5105 }
5106 *s = *s + 1;
5107 }
5108
5109 return nullif;
5110}
5111
5112/* Parse a non-negated compare/subtract completer returning the
5113 number (for encoding in instrutions) of the given completer.
5114
5115 ISBRANCH specifies whether or not this is parsing a condition
5116 completer for a branch (vs a nullification completer for a
5117 computational instruction. */
5118
5119static int
5120pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
5121 char **s;
5122 int isbranch;
5123{
5124 int cmpltr;
5125 char *name = *s + 1;
5126 char c;
5127 char *save_s = *s;
5128 int nullify = 0;
5129
5130 cmpltr = 0;
5131 if (**s == ',')
5132 {
5133 *s += 1;
5134 while (**s != ',' && **s != ' ' && **s != '\t')
5135 *s += 1;
5136 c = **s;
5137 **s = 0x00;
5138
5139
5140 if (strcmp (name, "=") == 0)
5141 {
5142 cmpltr = 1;
5143 }
5144 else if (strcmp (name, "<") == 0)
5145 {
5146 cmpltr = 2;
5147 }
5148 else if (strcmp (name, "<=") == 0)
5149 {
5150 cmpltr = 3;
5151 }
5152 else if (strcmp (name, "<<") == 0)
5153 {
5154 cmpltr = 4;
5155 }
5156 else if (strcmp (name, "<<=") == 0)
5157 {
5158 cmpltr = 5;
5159 }
5160 else if (strcasecmp (name, "sv") == 0)
5161 {
5162 cmpltr = 6;
5163 }
5164 else if (strcasecmp (name, "od") == 0)
5165 {
5166 cmpltr = 7;
5167 }
5168 /* If we have something like addb,n then there is no condition
5169 completer. */
5170 else if (strcasecmp (name, "n") == 0 && isbranch)
5171 {
5172 cmpltr = 0;
5173 nullify = 1;
5174 }
5175 else
5176 {
5177 cmpltr = -1;
5178 }
5179 **s = c;
5180 }
5181
5182 /* Reset pointers if this was really a ,n for a branch instruction. */
5183 if (nullify)
5184 *s = save_s;
5185
5186
5187 return cmpltr;
5188}
5189
5190/* Parse a negated compare/subtract completer returning the
5191 number (for encoding in instrutions) of the given completer.
5192
5193 ISBRANCH specifies whether or not this is parsing a condition
5194 completer for a branch (vs a nullification completer for a
5195 computational instruction. */
5196
5197static int
5198pa_parse_neg_cmpsub_cmpltr (s, isbranch)
5199 char **s;
5200 int isbranch;
5201{
5202 int cmpltr;
5203 char *name = *s + 1;
5204 char c;
5205 char *save_s = *s;
5206 int nullify = 0;
5207
5208 cmpltr = 0;
5209 if (**s == ',')
5210 {
5211 *s += 1;
5212 while (**s != ',' && **s != ' ' && **s != '\t')
5213 *s += 1;
5214 c = **s;
5215 **s = 0x00;
5216
5217
5218 if (strcasecmp (name, "tr") == 0)
5219 {
5220 cmpltr = 0;
5221 }
5222 else if (strcmp (name, "<>") == 0)
5223 {
5224 cmpltr = 1;
5225 }
5226 else if (strcmp (name, ">=") == 0)
5227 {
5228 cmpltr = 2;
5229 }
5230 else if (strcmp (name, ">") == 0)
5231 {
5232 cmpltr = 3;
5233 }
5234 else if (strcmp (name, ">>=") == 0)
5235 {
5236 cmpltr = 4;
5237 }
5238 else if (strcmp (name, ">>") == 0)
5239 {
5240 cmpltr = 5;
5241 }
5242 else if (strcasecmp (name, "nsv") == 0)
5243 {
5244 cmpltr = 6;
5245 }
5246 else if (strcasecmp (name, "ev") == 0)
5247 {
5248 cmpltr = 7;
5249 }
5250 /* If we have something like addb,n then there is no condition
5251 completer. */
5252 else if (strcasecmp (name, "n") == 0 && isbranch)
5253 {
5254 cmpltr = 0;
5255 nullify = 1;
5256 }
5257 else
5258 {
5259 cmpltr = -1;
5260 }
5261 **s = c;
5262 }
5263
5264 /* Reset pointers if this was really a ,n for a branch instruction. */
5265 if (nullify)
5266 *s = save_s;
5267
5268
5269 return cmpltr;
5270}
5271
5272
5273/* Parse a non-negated addition completer returning the number
5274 (for encoding in instrutions) of the given completer.
5275
5276 ISBRANCH specifies whether or not this is parsing a condition
5277 completer for a branch (vs a nullification completer for a
5278 computational instruction. */
5279
5280static int
5281pa_parse_nonneg_add_cmpltr (s, isbranch)
5282 char **s;
5283 int isbranch;
5284{
5285 int cmpltr;
5286 char *name = *s + 1;
5287 char c;
5288 char *save_s = *s;
5289
5290 cmpltr = 0;
5291 if (**s == ',')
5292 {
5293 *s += 1;
5294 while (**s != ',' && **s != ' ' && **s != '\t')
5295 *s += 1;
5296 c = **s;
5297 **s = 0x00;
5298 if (strcmp (name, "=") == 0)
5299 {
5300 cmpltr = 1;
5301 }
5302 else if (strcmp (name, "<") == 0)
5303 {
5304 cmpltr = 2;
5305 }
5306 else if (strcmp (name, "<=") == 0)
5307 {
5308 cmpltr = 3;
5309 }
5310 else if (strcasecmp (name, "nuv") == 0)
5311 {
5312 cmpltr = 4;
5313 }
5314 else if (strcasecmp (name, "znv") == 0)
5315 {
5316 cmpltr = 5;
5317 }
5318 else if (strcasecmp (name, "sv") == 0)
5319 {
5320 cmpltr = 6;
5321 }
5322 else if (strcasecmp (name, "od") == 0)
5323 {
5324 cmpltr = 7;
5325 }
5326 /* If we have something like addb,n then there is no condition
5327 completer. */
5328 else if (strcasecmp (name, "n") == 0 && isbranch)
5329 {
5330 cmpltr = 0;
5331 }
5332 else
5333 {
5334 cmpltr = -1;
5335 }
5336 **s = c;
5337 }
5338
5339 /* Reset pointers if this was really a ,n for a branch instruction. */
5340 if (cmpltr == 0 && *name == 'n' && isbranch)
5341 *s = save_s;
5342
5343 return cmpltr;
5344}
5345
5346/* Parse a negated addition completer returning the number
5347 (for encoding in instrutions) of the given completer.
5348
5349 ISBRANCH specifies whether or not this is parsing a condition
5350 completer for a branch (vs a nullification completer for a
5351 computational instruction). */
5352
5353static int
5354pa_parse_neg_add_cmpltr (s, isbranch)
5355 char **s;
5356 int isbranch;
5357{
5358 int cmpltr;
5359 char *name = *s + 1;
5360 char c;
5361 char *save_s = *s;
5362
5363 cmpltr = 0;
5364 if (**s == ',')
5365 {
5366 *s += 1;
5367 while (**s != ',' && **s != ' ' && **s != '\t')
5368 *s += 1;
5369 c = **s;
5370 **s = 0x00;
5371 if (strcasecmp (name, "tr") == 0)
5372 {
5373 cmpltr = 0;
5374 }
5375 else if (strcmp (name, "<>") == 0)
5376 {
5377 cmpltr = 1;
5378 }
5379 else if (strcmp (name, ">=") == 0)
5380 {
5381 cmpltr = 2;
5382 }
5383 else if (strcmp (name, ">") == 0)
5384 {
5385 cmpltr = 3;
5386 }
5387 else if (strcasecmp (name, "uv") == 0)
5388 {
5389 cmpltr = 4;
5390 }
5391 else if (strcasecmp (name, "vnz") == 0)
5392 {
5393 cmpltr = 5;
5394 }
5395 else if (strcasecmp (name, "nsv") == 0)
5396 {
5397 cmpltr = 6;
5398 }
5399 else if (strcasecmp (name, "ev") == 0)
5400 {
5401 cmpltr = 7;
5402 }
5403 /* If we have something like addb,n then there is no condition
5404 completer. */
5405 else if (strcasecmp (name, "n") == 0 && isbranch)
5406 {
5407 cmpltr = 0;
5408 }
5409 else
5410 {
5411 cmpltr = -1;
5412 }
5413 **s = c;
5414 }
5415
5416 /* Reset pointers if this was really a ,n for a branch instruction. */
5417 if (cmpltr == 0 && *name == 'n' && isbranch)
5418 *s = save_s;
5419
5420 return cmpltr;
5421}
5422
49863f82 5423#ifdef OBJ_SOM
252b5132
RH		 5424/* Handle an alignment directive. Special so that we can update the
5425 alignment of the subspace if necessary. */
5426static void
5427pa_align (bytes)
5428{
5429 /* We must have a valid space and subspace. */
5430 pa_check_current_space_and_subspace ();
5431
5432 /* Let the generic gas code do most of the work. */
5433 s_align_bytes (bytes);
5434
5435 /* If bytes is a power of 2, then update the current subspace's
5436 alignment if necessary. */
5437 if (log2 (bytes) != -1)
5438 record_alignment (current_subspace->ssd_seg, log2 (bytes));
5439}
49863f82 5440#endif
252b5132
RH		 5441
5442/* Handle a .BLOCK type pseudo-op. */
5443
5444static void
5445pa_block (z)
5446 int z;
5447{
5448 char *p;
5449 long int temp_fill;
5450 unsigned int temp_size;
5451 unsigned int i;
5452
49863f82 5453#ifdef OBJ_SOM
252b5132
RH		 5454 /* We must have a valid space and subspace. */
5455 pa_check_current_space_and_subspace ();
49863f82 5456#endif
252b5132
RH		 5457
5458 temp_size = get_absolute_expression ();
5459
5460 /* Always fill with zeros, that's what the HP assembler does. */
5461 temp_fill = 0;
5462
5463 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
5464 (relax_substateT) 0, (symbolS *) 0, (offsetT) 1, NULL);
5465 memset (p, 0, temp_size);
5466
5467 /* Convert 2 bytes at a time. */
5468
5469 for (i = 0; i < temp_size; i += 2)
5470 {
5471 md_number_to_chars (p + i,
5472 (valueT) temp_fill,
5473 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
5474 }
5475
5476 pa_undefine_label ();
5477 demand_empty_rest_of_line ();
5478}
5479
5480/* Handle a .begin_brtab and .end_brtab pseudo-op. */
5481
5482static void
5483pa_brtab (begin)
5484 int begin;
5485{
5486
5487#ifdef OBJ_SOM
5488 /* The BRTAB relocations are only availble in SOM (to denote
5489 the beginning and end of branch tables). */
5490 char *where = frag_more (0);
5491
5492 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5493 NULL, (offsetT) 0, NULL,
5494 0, begin ? R_HPPA_BEGIN_BRTAB : R_HPPA_END_BRTAB,
5495 e_fsel, 0, 0, NULL);
5496#endif
5497
5498 demand_empty_rest_of_line ();
5499}
5500
5501/* Handle a .begin_try and .end_try pseudo-op. */
5502
5503static void
5504pa_try (begin)
5505 int begin;
5506{
5507#ifdef OBJ_SOM
5508 expressionS exp;
5509 char *where = frag_more (0);
5510
5511 if (! begin)
5512 expression (&exp);
5513
5514 /* The TRY relocations are only availble in SOM (to denote
5515 the beginning and end of exception handling regions). */
5516
5517 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5518 NULL, (offsetT) 0, begin ? NULL : &exp,
5519 0, begin ? R_HPPA_BEGIN_TRY : R_HPPA_END_TRY,
5520 e_fsel, 0, 0, NULL);
5521#endif
5522
5523 demand_empty_rest_of_line ();
5524}
5525
5526/* Handle a .CALL pseudo-op. This involves storing away information
5527 about where arguments are to be found so the linker can detect
5528 (and correct) argument location mismatches between caller and callee. */
5529
5530static void
5531pa_call (unused)
5532 int unused;
5533{
49863f82 5534#ifdef OBJ_SOM
252b5132
RH		 5535 /* We must have a valid space and subspace. */
5536 pa_check_current_space_and_subspace ();
49863f82 5537#endif
252b5132
RH		 5538
5539 pa_call_args (&last_call_desc);
5540 demand_empty_rest_of_line ();
5541}
5542
5543/* Do the dirty work of building a call descriptor which describes
5544 where the caller placed arguments to a function call. */
5545
5546static void
5547pa_call_args (call_desc)
5548 struct call_desc *call_desc;
5549{
5550 char *name, c, *p;
5551 unsigned int temp, arg_reloc;
5552
5553 while (!is_end_of_statement ())
5554 {
5555 name = input_line_pointer;
5556 c = get_symbol_end ();
5557 /* Process a source argument. */
5558 if ((strncasecmp (name, "argw", 4) == 0))
5559 {
5560 temp = atoi (name + 4);
5561 p = input_line_pointer;
5562 *p = c;
5563 input_line_pointer++;
5564 name = input_line_pointer;
5565 c = get_symbol_end ();
5566 arg_reloc = pa_build_arg_reloc (name);
5567 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
5568 }
5569 /* Process a return value. */
5570 else if ((strncasecmp (name, "rtnval", 6) == 0))
5571 {
5572 p = input_line_pointer;
5573 *p = c;
5574 input_line_pointer++;
5575 name = input_line_pointer;
5576 c = get_symbol_end ();
5577 arg_reloc = pa_build_arg_reloc (name);
5578 call_desc->arg_reloc |= (arg_reloc & 0x3);
5579 }
5580 else
5581 {
5582 as_bad (_("Invalid .CALL argument: %s"), name);
5583 }
5584 p = input_line_pointer;
5585 *p = c;
5586 if (!is_end_of_statement ())
5587 input_line_pointer++;
5588 }
5589}
5590
5591/* Return TRUE if FRAG1 and FRAG2 are the same. */
5592
5593static int
5594is_same_frag (frag1, frag2)
5595 fragS *frag1;
5596 fragS *frag2;
5597{
5598
5599 if (frag1 == NULL)
5600 return (FALSE);
5601 else if (frag2 == NULL)
5602 return (FALSE);
5603 else if (frag1 == frag2)
5604 return (TRUE);
5605 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
5606 return (is_same_frag (frag1, frag2->fr_next));
5607 else
5608 return (FALSE);
5609}
5610
5611#ifdef OBJ_ELF
5612/* Build an entry in the UNWIND subspace from the given function
5613 attributes in CALL_INFO. This is not needed for SOM as using
5614 R_ENTRY and R_EXIT relocations allow the linker to handle building
5615 of the unwind spaces. */
5616
5617static void
5618pa_build_unwind_subspace (call_info)
5619 struct call_info *call_info;
5620{
5621 char *unwind;
5622 asection *seg, *save_seg;
46031ca9 5623 asymbol *sym;
252b5132 5624 subsegT subseg, save_subseg;
46031ca9 5625 int i, reloc;
252b5132
RH		 5626 char c, *p;
5627
f1a1312b 5628 if (now_seg != text_section)
7acbfc6b
JL		 5629 return;
5630
9100134c
JL		 5631 if (bfd_get_arch_info (stdoutput)->bits_per_address == 32)
5632 reloc = R_PARISC_DIR32;
46031ca9 5633 else
9100134c 5634 reloc = R_PARISC_SEGREL32;
46031ca9 5635
252b5132
RH		 5636 /* Get into the right seg/subseg. This may involve creating
5637 the seg the first time through. Make sure to have the
5638 old seg/subseg so that we can reset things when we are done. */
252b5132
RH		 5639 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
5640 if (seg == ASEC_NULL)
5641 {
5642 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
5643 bfd_set_section_flags (stdoutput, seg,
5644 SEC_READONLY | SEC_HAS_CONTENTS
b100be66
JL		 5645 | SEC_LOAD | SEC_RELOC | SEC_ALLOC | SEC_DATA);
5646 bfd_set_section_alignment (stdoutput, seg, 2);
252b5132
RH		 5647 }
5648
5649 save_seg = now_seg;
5650 save_subseg = now_subseg;
46031ca9 5651 subseg_set (seg, 0);
252b5132
RH		 5652
5653
5654 /* Get some space to hold relocation information for the unwind
5655 descriptor. */
5656 p = frag_more (4);
5657 md_number_to_chars (p, 0, 4);
5658
5659 /* Relocation info. for start offset of the function. */
5660 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
5661 call_info->start_symbol, (offsetT) 0,
46031ca9
JL		 5662 (expressionS *) NULL, 0, reloc,
5663 e_fsel, 32, 0, NULL);
252b5132
RH		 5664
5665 p = frag_more (4);
5666 md_number_to_chars (p, 0, 4);
5667
5668 /* Relocation info. for end offset of the function.
5669
5670 Because we allow reductions of 32bit relocations for ELF, this will be
5671 reduced to section_sym + offset which avoids putting the temporary
5672 symbol into the symbol table. It (should) end up giving the same
5673 value as call_info->start_symbol + function size once the linker is
5674 finished with its work. */
5675
5676 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
5677 call_info->end_symbol, (offsetT) 0,
46031ca9
JL		 5678 (expressionS *) NULL, 0, reloc,
5679 e_fsel, 32, 0, NULL);
252b5132
RH		 5680
5681 /* Dump it. */
5682 unwind = (char *) &call_info->ci_unwind;
5683 for (i = 8; i < sizeof (struct unwind_table); i++)
5684 {
5685 c = *(unwind + i);
5686 {
5687 FRAG_APPEND_1_CHAR (c);
5688 }
5689 }
5690
5691 /* Return back to the original segment/subsegment. */
5692 subseg_set (save_seg, save_subseg);
5693}
5694#endif
5695
5696/* Process a .CALLINFO pseudo-op. This information is used later
5697 to build unwind descriptors and maybe one day to support
5698 .ENTER and .LEAVE. */
5699
5700static void
5701pa_callinfo (unused)
5702 int unused;
5703{
5704 char *name, c, *p;
5705 int temp;
5706
49863f82 5707#ifdef OBJ_SOM
252b5132
RH		 5708 /* We must have a valid space and subspace. */
5709 pa_check_current_space_and_subspace ();
49863f82 5710#endif
252b5132
RH		 5711
5712 /* .CALLINFO must appear within a procedure definition. */
5713 if (!within_procedure)
5714 as_bad (_(".callinfo is not within a procedure definition"));
5715
5716 /* Mark the fact that we found the .CALLINFO for the
5717 current procedure. */
5718 callinfo_found = TRUE;
5719
5720 /* Iterate over the .CALLINFO arguments. */
5721 while (!is_end_of_statement ())
5722 {
5723 name = input_line_pointer;
5724 c = get_symbol_end ();
5725 /* Frame size specification. */
5726 if ((strncasecmp (name, "frame", 5) == 0))
5727 {
5728 p = input_line_pointer;
5729 *p = c;
5730 input_line_pointer++;
5731 temp = get_absolute_expression ();
5732 if ((temp & 0x3) != 0)
5733 {
5734 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp);
5735 temp = 0;
5736 }
5737
5738 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
5739 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
5740
5741 }
5742 /* Entry register (GR, GR and SR) specifications. */
5743 else if ((strncasecmp (name, "entry_gr", 8) == 0))
5744 {
5745 p = input_line_pointer;
5746 *p = c;
5747 input_line_pointer++;
5748 temp = get_absolute_expression ();
5749 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
5750 even though %r19 is caller saved. I think this is a bug in
5751 the HP assembler, and we are not going to emulate it. */
5752 if (temp < 3 || temp > 18)
5753 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
5754 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
5755 }
5756 else if ((strncasecmp (name, "entry_fr", 8) == 0))
5757 {
5758 p = input_line_pointer;
5759 *p = c;
5760 input_line_pointer++;
5761 temp = get_absolute_expression ();
5762 /* Similarly the HP assembler takes 31 as the high bound even
5763 though %fr21 is the last callee saved floating point register. */
5764 if (temp < 12 || temp > 21)
5765 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
5766 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
5767 }
5768 else if ((strncasecmp (name, "entry_sr", 8) == 0))
5769 {
5770 p = input_line_pointer;
5771 *p = c;
5772 input_line_pointer++;
5773 temp = get_absolute_expression ();
5774 if (temp != 3)
5775 as_bad (_("Value for ENTRY_SR must be 3\n"));
5776 }
5777 /* Note whether or not this function performs any calls. */
5778 else if ((strncasecmp (name, "calls", 5) == 0) ||
5779 (strncasecmp (name, "caller", 6) == 0))
5780 {
5781 p = input_line_pointer;
5782 *p = c;
5783 }
5784 else if ((strncasecmp (name, "no_calls", 8) == 0))
5785 {
5786 p = input_line_pointer;
5787 *p = c;
5788 }
5789 /* Should RP be saved into the stack. */
5790 else if ((strncasecmp (name, "save_rp", 7) == 0))
5791 {
5792 p = input_line_pointer;
5793 *p = c;
5794 last_call_info->ci_unwind.descriptor.save_rp = 1;
5795 }
5796 /* Likewise for SP. */
5797 else if ((strncasecmp (name, "save_sp", 7) == 0))
5798 {
5799 p = input_line_pointer;
5800 *p = c;
5801 last_call_info->ci_unwind.descriptor.save_sp = 1;
5802 }
5803 /* Is this an unwindable procedure. If so mark it so
5804 in the unwind descriptor. */
5805 else if ((strncasecmp (name, "no_unwind", 9) == 0))
5806 {
5807 p = input_line_pointer;
5808 *p = c;
5809 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
5810 }
5811 /* Is this an interrupt routine. If so mark it in the
5812 unwind descriptor. */
5813 else if ((strncasecmp (name, "hpux_int", 7) == 0))
5814 {
5815 p = input_line_pointer;
5816 *p = c;
5817 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
5818 }
5819 /* Is this a millicode routine. "millicode" isn't in my
5820 assembler manual, but my copy is old. The HP assembler
5821 accepts it, and there's a place in the unwind descriptor
5822 to drop the information, so we'll accept it too. */
5823 else if ((strncasecmp (name, "millicode", 9) == 0))
5824 {
5825 p = input_line_pointer;
5826 *p = c;
5827 last_call_info->ci_unwind.descriptor.millicode = 1;
5828 }
5829 else
5830 {
5831 as_bad (_("Invalid .CALLINFO argument: %s"), name);
5832 *input_line_pointer = c;
5833 }
5834 if (!is_end_of_statement ())
5835 input_line_pointer++;
5836 }
5837
5838 demand_empty_rest_of_line ();
5839}
5840
5841/* Switch into the code subspace. */
5842
5843static void
5844pa_code (unused)
5845 int unused;
5846{
49863f82 5847#ifdef OBJ_SOM
252b5132
RH		 5848 current_space = is_defined_space ("$TEXT$");
5849 current_subspace
5850 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 5851#endif
252b5132
RH		 5852 s_text (0);
5853 pa_undefine_label ();
5854}
5855
5856/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
5857 the .comm pseudo-op has the following symtax:
5858
5859 <label> .comm <length>
5860
5861 where <label> is optional and is a symbol whose address will be the start of
5862 a block of memory <length> bytes long. <length> must be an absolute
5863 expression. <length> bytes will be allocated in the current space
5864 and subspace.
5865
5866 Also note the label may not even be on the same line as the .comm.
5867
5868 This difference in syntax means the colon function will be called
5869 on the symbol before we arrive in pa_comm. colon will set a number
5870 of attributes of the symbol that need to be fixed here. In particular
5871 the value, section pointer, fragment pointer, flags, etc. What
5872 a pain.
5873
5874 This also makes error detection all but impossible. */
5875
5876static void
5877pa_comm (unused)
5878 int unused;
5879{
5880 unsigned int size;
5881 symbolS *symbol;
5882 label_symbol_struct *label_symbol = pa_get_label ();
5883
5884 if (label_symbol)
5885 symbol = label_symbol->lss_label;
5886 else
5887 symbol = NULL;
5888
5889 SKIP_WHITESPACE ();
5890 size = get_absolute_expression ();
5891
5892 if (symbol)
5893 {
5894 S_SET_VALUE (symbol, size);
5895 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
5896 S_SET_EXTERNAL (symbol);
5897
5898 /* colon() has already set the frag to the current location in the
5899 current subspace; we need to reset the fragment to the zero address
5900 fragment. We also need to reset the segment pointer. */
a0f75b47 5901 symbol_set_frag (symbol, &zero_address_frag);
252b5132
RH		 5902 }
5903 demand_empty_rest_of_line ();
5904}
5905
5906/* Process a .END pseudo-op. */
5907
5908static void
5909pa_end (unused)
5910 int unused;
5911{
5912 demand_empty_rest_of_line ();
5913}
5914
5915/* Process a .ENTER pseudo-op. This is not supported. */
5916static void
5917pa_enter (unused)
5918 int unused;
5919{
49863f82 5920#ifdef OBJ_SOM
252b5132
RH		 5921 /* We must have a valid space and subspace. */
5922 pa_check_current_space_and_subspace ();
49863f82 5923#endif
252b5132
RH		 5924
5925 as_bad (_("The .ENTER pseudo-op is not supported"));
5926 demand_empty_rest_of_line ();
5927}
5928
5929/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
5930 procesure. */
5931static void
5932pa_entry (unused)
5933 int unused;
5934{
49863f82 5935#ifdef OBJ_SOM
252b5132
RH		 5936 /* We must have a valid space and subspace. */
5937 pa_check_current_space_and_subspace ();
49863f82 5938#endif
252b5132
RH		 5939
5940 if (!within_procedure)
5941 as_bad (_("Misplaced .entry. Ignored."));
5942 else
5943 {
5944 if (!callinfo_found)
5945 as_bad (_("Missing .callinfo."));
5946 }
5947 demand_empty_rest_of_line ();
5948 within_entry_exit = TRUE;
5949
5950#ifdef OBJ_SOM
5951 /* SOM defers building of unwind descriptors until the link phase.
5952 The assembler is responsible for creating an R_ENTRY relocation
5953 to mark the beginning of a region and hold the unwind bits, and
5954 for creating an R_EXIT relocation to mark the end of the region.
5955
5956 FIXME. ELF should be using the same conventions! The problem
5957 is an unwind requires too much relocation space. Hmmm. Maybe
5958 if we split the unwind bits up between the relocations which
5959 denote the entry and exit points. */
5960 if (last_call_info->start_symbol != NULL)
5961 {
5962 char *where = frag_more (0);
5963
5964 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
5965 NULL, (offsetT) 0, NULL,
5966 0, R_HPPA_ENTRY, e_fsel, 0, 0,
5967 (int *) &last_call_info->ci_unwind.descriptor);
5968 }
5969#endif
5970}
5971
5972/* Handle a .EQU pseudo-op. */
5973
5974static void
5975pa_equ (reg)
5976 int reg;
5977{
5978 label_symbol_struct *label_symbol = pa_get_label ();
5979 symbolS *symbol;
5980
5981 if (label_symbol)
5982 {
5983 symbol = label_symbol->lss_label;
5984 if (reg)
5985 S_SET_VALUE (symbol, pa_parse_number (&input_line_pointer, 0));
5986 else
5987 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
5988 S_SET_SEGMENT (symbol, bfd_abs_section_ptr);
5989 }
5990 else
5991 {
5992 if (reg)
5993 as_bad (_(".REG must use a label"));
5994 else
5995 as_bad (_(".EQU must use a label"));
5996 }
5997
5998 pa_undefine_label ();
5999 demand_empty_rest_of_line ();
6000}
6001
6002/* Helper function. Does processing for the end of a function. This
6003 usually involves creating some relocations or building special
6004 symbols to mark the end of the function. */
6005
6006static void
6007process_exit ()
6008{
6009 char *where;
6010
6011 where = frag_more (0);
6012
6013#ifdef OBJ_ELF
6014 /* Mark the end of the function, stuff away the location of the frag
6015 for the end of the function, and finally call pa_build_unwind_subspace
6016 to add an entry in the unwind table. */
6017 hppa_elf_mark_end_of_function ();
6018 pa_build_unwind_subspace (last_call_info);
6019#else
6020 /* SOM defers building of unwind descriptors until the link phase.
6021 The assembler is responsible for creating an R_ENTRY relocation
6022 to mark the beginning of a region and hold the unwind bits, and
6023 for creating an R_EXIT relocation to mark the end of the region.
6024
6025 FIXME. ELF should be using the same conventions! The problem
6026 is an unwind requires too much relocation space. Hmmm. Maybe
6027 if we split the unwind bits up between the relocations which
6028 denote the entry and exit points. */
6029 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
6030 NULL, (offsetT) 0,
6031 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0,
6032 (int *) &last_call_info->ci_unwind.descriptor + 1);
6033#endif
6034}
6035
6036/* Process a .EXIT pseudo-op. */
6037
6038static void
6039pa_exit (unused)
6040 int unused;
6041{
49863f82 6042#ifdef OBJ_SOM
252b5132
RH		 6043 /* We must have a valid space and subspace. */
6044 pa_check_current_space_and_subspace ();
49863f82 6045#endif
252b5132
RH		 6046
6047 if (!within_procedure)
6048 as_bad (_(".EXIT must appear within a procedure"));
6049 else
6050 {
6051 if (!callinfo_found)
6052 as_bad (_("Missing .callinfo"));
6053 else
6054 {
6055 if (!within_entry_exit)
6056 as_bad (_("No .ENTRY for this .EXIT"));
6057 else
6058 {
6059 within_entry_exit = FALSE;
6060 process_exit ();
6061 }
6062 }
6063 }
6064 demand_empty_rest_of_line ();
6065}
6066
6067/* Process a .EXPORT directive. This makes functions external
6068 and provides information such as argument relocation entries
6069 to callers. */
6070
6071static void
6072pa_export (unused)
6073 int unused;
6074{
6075 char *name, c, *p;
6076 symbolS *symbol;
6077
6078 name = input_line_pointer;
6079 c = get_symbol_end ();
6080 /* Make sure the given symbol exists. */
6081 if ((symbol = symbol_find_or_make (name)) == NULL)
6082 {
6083 as_bad (_("Cannot define export symbol: %s\n"), name);
6084 p = input_line_pointer;
6085 *p = c;
6086 input_line_pointer++;
6087 }
6088 else
6089 {
6090 /* OK. Set the external bits and process argument relocations. */
6091 S_SET_EXTERNAL (symbol);
6092 p = input_line_pointer;
6093 *p = c;
6094 if (!is_end_of_statement ())
6095 {
6096 input_line_pointer++;
6097 pa_type_args (symbol, 1);
6098 }
6099 }
6100
6101 demand_empty_rest_of_line ();
6102}
6103
6104/* Helper function to process arguments to a .EXPORT pseudo-op. */
6105
6106static void
6107pa_type_args (symbolP, is_export)
6108 symbolS *symbolP;
6109 int is_export;
6110{
6111 char *name, c, *p;
6112 unsigned int temp, arg_reloc;
6113 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
a0f75b47 6114 obj_symbol_type *symbol = (obj_symbol_type *) symbol_get_bfdsym (symbolP);
252b5132
RH		 6115
6116 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
6117
6118 {
6119 input_line_pointer += 8;
a0f75b47 6120 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 6121 S_SET_SEGMENT (symbolP, bfd_abs_section_ptr);
6122 type = SYMBOL_TYPE_ABSOLUTE;
6123 }
6124 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
6125 {
6126 input_line_pointer += 4;
6127 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
6128 instead one should be IMPORTing/EXPORTing ENTRY types.
6129
6130 Complain if one tries to EXPORT a CODE type since that's never
6131 done. Both GCC and HP C still try to IMPORT CODE types, so
6132 silently fix them to be ENTRY types. */
a0f75b47 6133 if (S_IS_FUNCTION (symbolP))
252b5132
RH		 6134 {
6135 if (is_export)
a0f75b47
ILT		 6136 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
6137 S_GET_NAME (symbolP));
252b5132 6138
a0f75b47 6139 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6140 type = SYMBOL_TYPE_ENTRY;
6141 }
6142 else
6143 {
a0f75b47 6144 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 6145 type = SYMBOL_TYPE_CODE;
6146 }
6147 }
6148 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
6149 {
6150 input_line_pointer += 4;
a0f75b47 6151 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
7acbfc6b 6152 symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT;
252b5132
RH		 6153 type = SYMBOL_TYPE_DATA;
6154 }
6155 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
6156 {
6157 input_line_pointer += 5;
a0f75b47 6158 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6159 type = SYMBOL_TYPE_ENTRY;
6160 }
6161 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
6162 {
6163 input_line_pointer += 9;
a0f75b47 6164 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6165 type = SYMBOL_TYPE_MILLICODE;
6166 }
6167 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
6168 {
6169 input_line_pointer += 6;
a0f75b47 6170 symbol_get_bfdsym (symbolP)->flags &= ~BSF_FUNCTION;
252b5132
RH		 6171 type = SYMBOL_TYPE_PLABEL;
6172 }
6173 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
6174 {
6175 input_line_pointer += 8;
a0f75b47 6176 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6177 type = SYMBOL_TYPE_PRI_PROG;
6178 }
6179 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
6180 {
6181 input_line_pointer += 8;
a0f75b47 6182 symbol_get_bfdsym (symbolP)->flags |= BSF_FUNCTION;
252b5132
RH		 6183 type = SYMBOL_TYPE_SEC_PROG;
6184 }
6185
6186 /* SOM requires much more information about symbol types
6187 than BFD understands. This is how we get this information
6188 to the SOM BFD backend. */
6189#ifdef obj_set_symbol_type
a0f75b47 6190 obj_set_symbol_type (symbol_get_bfdsym (symbolP), (int) type);
252b5132
RH		 6191#endif
6192
6193 /* Now that the type of the exported symbol has been handled,
6194 handle any argument relocation information. */
6195 while (!is_end_of_statement ())
6196 {
6197 if (*input_line_pointer == ',')
6198 input_line_pointer++;
6199 name = input_line_pointer;
6200 c = get_symbol_end ();
6201 /* Argument sources. */
6202 if ((strncasecmp (name, "argw", 4) == 0))
6203 {
6204 p = input_line_pointer;
6205 *p = c;
6206 input_line_pointer++;
6207 temp = atoi (name + 4);
6208 name = input_line_pointer;
6209 c = get_symbol_end ();
6210 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
49863f82 6211#ifdef OBJ_SOM
252b5132 6212 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
49863f82 6213#endif
252b5132
RH		 6214 *input_line_pointer = c;
6215 }
6216 /* The return value. */
6217 else if ((strncasecmp (name, "rtnval", 6)) == 0)
6218 {
6219 p = input_line_pointer;
6220 *p = c;
6221 input_line_pointer++;
6222 name = input_line_pointer;
6223 c = get_symbol_end ();
6224 arg_reloc = pa_build_arg_reloc (name);
49863f82 6225#ifdef OBJ_SOM
252b5132 6226 symbol->tc_data.ap.hppa_arg_reloc |= arg_reloc;
49863f82 6227#endif
252b5132
RH		 6228 *input_line_pointer = c;
6229 }
6230 /* Privelege level. */
6231 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
6232 {
6233 p = input_line_pointer;
6234 *p = c;
6235 input_line_pointer++;
6236 temp = atoi (input_line_pointer);
49863f82 6237#ifdef OBJ_SOM
252b5132 6238 symbol->tc_data.ap.hppa_priv_level = temp;
49863f82 6239#endif
252b5132
RH		 6240 c = get_symbol_end ();
6241 *input_line_pointer = c;
6242 }
6243 else
6244 {
6245 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name);
6246 p = input_line_pointer;
6247 *p = c;
6248 }
6249 if (!is_end_of_statement ())
6250 input_line_pointer++;
6251 }
6252}
6253
6254/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
6255 assembly file must either be defined in the assembly file, or
6256 explicitly IMPORTED from another. */
6257
6258static void
6259pa_import (unused)
6260 int unused;
6261{
6262 char *name, c, *p;
6263 symbolS *symbol;
6264
6265 name = input_line_pointer;
6266 c = get_symbol_end ();
6267
6268 symbol = symbol_find (name);
6269 /* Ugh. We might be importing a symbol defined earlier in the file,
6270 in which case all the code below will really screw things up
6271 (set the wrong segment, symbol flags & type, etc). */
6272 if (symbol == NULL || !S_IS_DEFINED (symbol))
6273 {
6274 symbol = symbol_find_or_make (name);
6275 p = input_line_pointer;
6276 *p = c;
6277
6278 if (!is_end_of_statement ())
6279 {
6280 input_line_pointer++;
6281 pa_type_args (symbol, 0);
6282 }
6283 else
6284 {
6285 /* Sigh. To be compatable with the HP assembler and to help
6286 poorly written assembly code, we assign a type based on
6287 the the current segment. Note only BSF_FUNCTION really
6288 matters, we do not need to set the full SYMBOL_TYPE_* info. */
6289 if (now_seg == text_section)
a0f75b47 6290 symbol_get_bfdsym (symbol)->flags |= BSF_FUNCTION;
252b5132
RH		 6291
6292 /* If the section is undefined, then the symbol is undefined
6293 Since this is an import, leave the section undefined. */
6294 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
6295 }
6296 }
6297 else
6298 {
6299 /* The symbol was already defined. Just eat everything up to
6300 the end of the current statement. */
6301 while (!is_end_of_statement ())
6302 input_line_pointer++;
6303 }
6304
6305 demand_empty_rest_of_line ();
6306}
6307
6308/* Handle a .LABEL pseudo-op. */
6309
6310static void
6311pa_label (unused)
6312 int unused;
6313{
6314 char *name, c, *p;
6315
6316 name = input_line_pointer;
6317 c = get_symbol_end ();
6318
6319 if (strlen (name) > 0)
6320 {
6321 colon (name);
6322 p = input_line_pointer;
6323 *p = c;
6324 }
6325 else
6326 {
6327 as_warn (_("Missing label name on .LABEL"));
6328 }
6329
6330 if (!is_end_of_statement ())
6331 {
6332 as_warn (_("extra .LABEL arguments ignored."));
6333 ignore_rest_of_line ();
6334 }
6335 demand_empty_rest_of_line ();
6336}
6337
6338/* Handle a .LEAVE pseudo-op. This is not supported yet. */
6339
6340static void
6341pa_leave (unused)
6342 int unused;
6343{
49863f82 6344#ifdef OBJ_SOM
252b5132
RH		 6345 /* We must have a valid space and subspace. */
6346 pa_check_current_space_and_subspace ();
49863f82 6347#endif
252b5132
RH		 6348
6349 as_bad (_("The .LEAVE pseudo-op is not supported"));
6350 demand_empty_rest_of_line ();
6351}
6352
6353/* Handle a .LEVEL pseudo-op. */
6354
6355static void
6356pa_level (unused)
6357 int unused;
6358{
6359 char *level;
6360
6361 level = input_line_pointer;
6362 if (strncmp (level, "1.0", 3) == 0)
6363 {
6364 input_line_pointer += 3;
6365 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
6366 as_warn (_("could not set architecture and machine"));
6367 }
6368 else if (strncmp (level, "1.1", 3) == 0)
6369 {
6370 input_line_pointer += 3;
6371 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 11))
6372 as_warn (_("could not set architecture and machine"));
6373 }
46031ca9
JL		 6374 else if (strncmp (level, "2.0w", 4) == 0)
6375 {
6376 input_line_pointer += 4;
6377 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 25))
6378 as_warn (_("could not set architecture and machine"));
6379 }
252b5132
RH		 6380 else if (strncmp (level, "2.0", 3) == 0)
6381 {
6382 input_line_pointer += 3;
6383 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 20))
6384 as_warn (_("could not set architecture and machine"));
6385 }
6386 else
6387 {
6388 as_bad (_("Unrecognized .LEVEL argument\n"));
6389 ignore_rest_of_line ();
6390 }
6391 demand_empty_rest_of_line ();
6392}
6393
6394/* Handle a .ORIGIN pseudo-op. */
6395
6396static void
6397pa_origin (unused)
6398 int unused;
6399{
49863f82 6400#ifdef OBJ_SOM
252b5132
RH		 6401 /* We must have a valid space and subspace. */
6402 pa_check_current_space_and_subspace ();
49863f82 6403#endif
252b5132
RH		 6404
6405 s_org (0);
6406 pa_undefine_label ();
6407}
6408
6409/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
6410 is for static functions. FIXME. Should share more code with .EXPORT. */
6411
6412static void
6413pa_param (unused)
6414 int unused;
6415{
6416 char *name, c, *p;
6417 symbolS *symbol;
6418
6419 name = input_line_pointer;
6420 c = get_symbol_end ();
6421
6422 if ((symbol = symbol_find_or_make (name)) == NULL)
6423 {
6424 as_bad (_("Cannot define static symbol: %s\n"), name);
6425 p = input_line_pointer;
6426 *p = c;
6427 input_line_pointer++;
6428 }
6429 else
6430 {
6431 S_CLEAR_EXTERNAL (symbol);
6432 p = input_line_pointer;
6433 *p = c;
6434 if (!is_end_of_statement ())
6435 {
6436 input_line_pointer++;
6437 pa_type_args (symbol, 0);
6438 }
6439 }
6440
6441 demand_empty_rest_of_line ();
6442}
6443
6444/* Handle a .PROC pseudo-op. It is used to mark the beginning
6445 of a procedure from a syntatical point of view. */
6446
6447static void
6448pa_proc (unused)
6449 int unused;
6450{
6451 struct call_info *call_info;
6452
49863f82 6453#ifdef OBJ_SOM
252b5132
RH		 6454 /* We must have a valid space and subspace. */
6455 pa_check_current_space_and_subspace ();
49863f82 6456#endif
252b5132
RH		 6457
6458 if (within_procedure)
6459 as_fatal (_("Nested procedures"));
6460
6461 /* Reset global variables for new procedure. */
6462 callinfo_found = FALSE;
6463 within_procedure = TRUE;
6464
6465 /* Create another call_info structure. */
6466 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
6467
6468 if (!call_info)
6469 as_fatal (_("Cannot allocate unwind descriptor\n"));
6470
6471 memset (call_info, 0, sizeof (struct call_info));
6472
6473 call_info->ci_next = NULL;
6474
6475 if (call_info_root == NULL)
6476 {
6477 call_info_root = call_info;
6478 last_call_info = call_info;
6479 }
6480 else
6481 {
6482 last_call_info->ci_next = call_info;
6483 last_call_info = call_info;
6484 }
6485
6486 /* set up defaults on call_info structure */
6487
6488 call_info->ci_unwind.descriptor.cannot_unwind = 0;
6489 call_info->ci_unwind.descriptor.region_desc = 1;
6490 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
6491
6492 /* If we got a .PROC pseudo-op, we know that the function is defined
6493 locally. Make sure it gets into the symbol table. */
6494 {
6495 label_symbol_struct *label_symbol = pa_get_label ();
6496
6497 if (label_symbol)
6498 {
6499 if (label_symbol->lss_label)
6500 {
6501 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47 6502 symbol_get_bfdsym (label_symbol->lss_label)->flags |= BSF_FUNCTION;
252b5132
RH		 6503 }
6504 else
6505 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6506 }
6507 else
6508 last_call_info->start_symbol = NULL;
6509 }
6510
6511 demand_empty_rest_of_line ();
6512}
6513
6514/* Process the syntatical end of a procedure. Make sure all the
6515 appropriate pseudo-ops were found within the procedure. */
6516
6517static void
6518pa_procend (unused)
6519 int unused;
6520{
6521
49863f82 6522#ifdef OBJ_SOM
252b5132
RH		 6523 /* We must have a valid space and subspace. */
6524 pa_check_current_space_and_subspace ();
49863f82 6525#endif
252b5132
RH		 6526
6527 /* If we are within a procedure definition, make sure we've
6528 defined a label for the procedure; handle case where the
6529 label was defined after the .PROC directive.
6530
6531 Note there's not need to diddle with the segment or fragment
6532 for the label symbol in this case. We have already switched
6533 into the new $CODE$ subspace at this point. */
6534 if (within_procedure && last_call_info->start_symbol == NULL)
6535 {
6536 label_symbol_struct *label_symbol = pa_get_label ();
6537
6538 if (label_symbol)
6539 {
6540 if (label_symbol->lss_label)
6541 {
6542 last_call_info->start_symbol = label_symbol->lss_label;
a0f75b47
ILT		 6543 symbol_get_bfdsym (label_symbol->lss_label)->flags
6544 |= BSF_FUNCTION;
252b5132
RH		 6545#ifdef OBJ_SOM
6546 /* Also handle allocation of a fixup to hold the unwind
6547 information when the label appears after the proc/procend. */
6548 if (within_entry_exit)
6549 {
6550 char *where = frag_more (0);
6551
6552 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
6553 NULL, (offsetT) 0, NULL,
6554 0, R_HPPA_ENTRY, e_fsel, 0, 0,
6555 (int *) &last_call_info->ci_unwind.descriptor);
6556 }
6557#endif
6558 }
6559 else
6560 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6561 }
6562 else
6563 as_bad (_("Missing function name for .PROC"));
6564 }
6565
6566 if (!within_procedure)
6567 as_bad (_("misplaced .procend"));
6568
6569 if (!callinfo_found)
6570 as_bad (_("Missing .callinfo for this procedure"));
6571
6572 if (within_entry_exit)
6573 as_bad (_("Missing .EXIT for a .ENTRY"));
6574
6575#ifdef OBJ_ELF
6576 /* ELF needs to mark the end of each function so that it can compute
6577 the size of the function (apparently its needed in the symbol table). */
6578 hppa_elf_mark_end_of_function ();
6579#endif
6580
6581 within_procedure = FALSE;
6582 demand_empty_rest_of_line ();
6583 pa_undefine_label ();
6584}
6585
49863f82
JL		 6586/* If VALUE is an exact power of two between zero and 2^31, then
6587 return log2 (VALUE). Else return -1. */
6588
6589static int
6590log2 (value)
6591 int value;
6592{
6593 int shift = 0;
6594
6595 while ((1 << shift) != value && shift < 32)
6596 shift++;
6597
6598 if (shift >= 32)
6599 return -1;
6600 else
6601 return shift;
6602}
6603
6604
6605#ifdef OBJ_SOM
6606/* Check to make sure we have a valid space and subspace. */
6607
6608static void
6609pa_check_current_space_and_subspace ()
6610{
6611 if (current_space == NULL)
6612 as_fatal (_("Not in a space.\n"));
6613
6614 if (current_subspace == NULL)
6615 as_fatal (_("Not in a subspace.\n"));
6616}
6617
252b5132
RH		 6618/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
6619 then create a new space entry to hold the information specified
6620 by the parameters to the .SPACE directive. */
6621
6622static sd_chain_struct *
6623pa_parse_space_stmt (space_name, create_flag)
6624 char *space_name;
6625 int create_flag;
6626{
6627 char *name, *ptemp, c;
6628 char loadable, defined, private, sort;
6629 int spnum, temp;
6630 asection *seg = NULL;
6631 sd_chain_struct *space;
6632
6633 /* load default values */
6634 spnum = 0;
6635 sort = 0;
6636 loadable = TRUE;
6637 defined = TRUE;
6638 private = FALSE;
6639 if (strcmp (space_name, "$TEXT$") == 0)
6640 {
6641 seg = pa_def_spaces[0].segment;
6642 defined = pa_def_spaces[0].defined;
6643 private = pa_def_spaces[0].private;
6644 sort = pa_def_spaces[0].sort;
6645 spnum = pa_def_spaces[0].spnum;
6646 }
6647 else if (strcmp (space_name, "$PRIVATE$") == 0)
6648 {
6649 seg = pa_def_spaces[1].segment;
6650 defined = pa_def_spaces[1].defined;
6651 private = pa_def_spaces[1].private;
6652 sort = pa_def_spaces[1].sort;
6653 spnum = pa_def_spaces[1].spnum;
6654 }
6655
6656 if (!is_end_of_statement ())
6657 {
6658 print_errors = FALSE;
6659 ptemp = input_line_pointer + 1;
6660 /* First see if the space was specified as a number rather than
6661 as a name. According to the PA assembly manual the rest of
6662 the line should be ignored. */
6663 temp = pa_parse_number (&ptemp, 0);
6664 if (temp >= 0)
6665 {
6666 spnum = temp;
6667 input_line_pointer = ptemp;
6668 }
6669 else
6670 {
6671 while (!is_end_of_statement ())
6672 {
6673 input_line_pointer++;
6674 name = input_line_pointer;
6675 c = get_symbol_end ();
6676 if ((strncasecmp (name, "spnum", 5) == 0))
6677 {
6678 *input_line_pointer = c;
6679 input_line_pointer++;
6680 spnum = get_absolute_expression ();
6681 }
6682 else if ((strncasecmp (name, "sort", 4) == 0))
6683 {
6684 *input_line_pointer = c;
6685 input_line_pointer++;
6686 sort = get_absolute_expression ();
6687 }
6688 else if ((strncasecmp (name, "unloadable", 10) == 0))
6689 {
6690 *input_line_pointer = c;
6691 loadable = FALSE;
6692 }
6693 else if ((strncasecmp (name, "notdefined", 10) == 0))
6694 {
6695 *input_line_pointer = c;
6696 defined = FALSE;
6697 }
6698 else if ((strncasecmp (name, "private", 7) == 0))
6699 {
6700 *input_line_pointer = c;
6701 private = TRUE;
6702 }
6703 else
6704 {
6705 as_bad (_("Invalid .SPACE argument"));
6706 *input_line_pointer = c;
6707 if (!is_end_of_statement ())
6708 input_line_pointer++;
6709 }
6710 }
6711 }
6712 print_errors = TRUE;
6713 }
6714
6715 if (create_flag && seg == NULL)
6716 seg = subseg_new (space_name, 0);
6717
6718 /* If create_flag is nonzero, then create the new space with
6719 the attributes computed above. Else set the values in
6720 an already existing space -- this can only happen for
6721 the first occurence of a built-in space. */
6722 if (create_flag)
6723 space = create_new_space (space_name, spnum, loadable, defined,
6724 private, sort, seg, 1);
6725 else
6726 {
6727 space = is_defined_space (space_name);
6728 SPACE_SPNUM (space) = spnum;
6729 SPACE_DEFINED (space) = defined & 1;
6730 SPACE_USER_DEFINED (space) = 1;
6731 }
6732
6733#ifdef obj_set_section_attributes
6734 obj_set_section_attributes (seg, defined, private, sort, spnum);
6735#endif
6736
6737 return space;
6738}
6739
6740/* Handle a .SPACE pseudo-op; this switches the current space to the
6741 given space, creating the new space if necessary. */
6742
6743static void
6744pa_space (unused)
6745 int unused;
6746{
6747 char *name, c, *space_name, *save_s;
6748 int temp;
6749 sd_chain_struct *sd_chain;
6750
6751 if (within_procedure)
6752 {
6753 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
6754 ignore_rest_of_line ();
6755 }
6756 else
6757 {
6758 /* Check for some of the predefined spaces. FIXME: most of the code
6759 below is repeated several times, can we extract the common parts
6760 and place them into a subroutine or something similar? */
6761 /* FIXME Is this (and the next IF stmt) really right?
6762 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
6763 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
6764 {
6765 input_line_pointer += 6;
6766 sd_chain = is_defined_space ("$TEXT$");
6767 if (sd_chain == NULL)
6768 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
6769 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6770 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
6771
6772 current_space = sd_chain;
6773 subseg_set (text_section, sd_chain->sd_last_subseg);
6774 current_subspace
6775 = pa_subsegment_to_subspace (text_section,
6776 sd_chain->sd_last_subseg);
6777 demand_empty_rest_of_line ();
6778 return;
6779 }
6780 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
6781 {
6782 input_line_pointer += 9;
6783 sd_chain = is_defined_space ("$PRIVATE$");
6784 if (sd_chain == NULL)
6785 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
6786 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6787 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
6788
6789 current_space = sd_chain;
6790 subseg_set (data_section, sd_chain->sd_last_subseg);
6791 current_subspace
6792 = pa_subsegment_to_subspace (data_section,
6793 sd_chain->sd_last_subseg);
6794 demand_empty_rest_of_line ();
6795 return;
6796 }
6797 if (!strncasecmp (input_line_pointer,
6798 GDB_DEBUG_SPACE_NAME,
6799 strlen (GDB_DEBUG_SPACE_NAME)))
6800 {
6801 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
6802 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
6803 if (sd_chain == NULL)
6804 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
6805 else if (SPACE_USER_DEFINED (sd_chain) == 0)
6806 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
6807
6808 current_space = sd_chain;
6809
6810 {
6811 asection *gdb_section
6812 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
6813
6814 subseg_set (gdb_section, sd_chain->sd_last_subseg);
6815 current_subspace
6816 = pa_subsegment_to_subspace (gdb_section,
6817 sd_chain->sd_last_subseg);
6818 }
6819 demand_empty_rest_of_line ();
6820 return;
6821 }
6822
6823 /* It could be a space specified by number. */
6824 print_errors = 0;
6825 save_s = input_line_pointer;
6826 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
6827 {
6828 if ((sd_chain = pa_find_space_by_number (temp)))
6829 {
6830 current_space = sd_chain;
6831
6832 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
6833 current_subspace
6834 = pa_subsegment_to_subspace (sd_chain->sd_seg,
6835 sd_chain->sd_last_subseg);
6836 demand_empty_rest_of_line ();
6837 return;
6838 }
6839 }
6840
6841 /* Not a number, attempt to create a new space. */
6842 print_errors = 1;
6843 input_line_pointer = save_s;
6844 name = input_line_pointer;
6845 c = get_symbol_end ();
6846 space_name = xmalloc (strlen (name) + 1);
6847 strcpy (space_name, name);
6848 *input_line_pointer = c;
6849
6850 sd_chain = pa_parse_space_stmt (space_name, 1);
6851 current_space = sd_chain;
6852
6853 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
6854 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
6855 sd_chain->sd_last_subseg);
6856 demand_empty_rest_of_line ();
6857 }
6858}
6859
6860/* Switch to a new space. (I think). FIXME. */
6861
6862static void
6863pa_spnum (unused)
6864 int unused;
6865{
6866 char *name;
6867 char c;
6868 char *p;
6869 sd_chain_struct *space;
6870
6871 name = input_line_pointer;
6872 c = get_symbol_end ();
6873 space = is_defined_space (name);
6874 if (space)
6875 {
6876 p = frag_more (4);
6877 md_number_to_chars (p, SPACE_SPNUM (space), 4);
6878 }
6879 else
6880 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name);
6881
6882 *input_line_pointer = c;
6883 demand_empty_rest_of_line ();
6884}
6885
252b5132
RH		 6886/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
6887 given subspace, creating the new subspace if necessary.
6888
6889 FIXME. Should mirror pa_space more closely, in particular how
6890 they're broken up into subroutines. */
6891
6892static void
6893pa_subspace (create_new)
6894 int create_new;
6895{
49863f82 6896 char *name, *ss_name, c;
252b5132
RH		 6897 char loadable, code_only, common, dup_common, zero, sort;
6898 int i, access, space_index, alignment, quadrant, applicable, flags;
6899 sd_chain_struct *space;
6900 ssd_chain_struct *ssd;
6901 asection *section;
6902
6903 if (current_space == NULL)
6904 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
6905
6906 if (within_procedure)
6907 {
6908 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
6909 ignore_rest_of_line ();
6910 }
6911 else
6912 {
6913 name = input_line_pointer;
6914 c = get_symbol_end ();
6915 ss_name = xmalloc (strlen (name) + 1);
6916 strcpy (ss_name, name);
6917 *input_line_pointer = c;
6918
6919 /* Load default values. */
6920 sort = 0;
6921 access = 0x7f;
6922 loadable = 1;
6923 common = 0;
6924 dup_common = 0;
6925 code_only = 0;
6926 zero = 0;
6927 space_index = ~0;
6928 alignment = 1;
6929 quadrant = 0;
252b5132
RH		 6930
6931 space = current_space;
6932 if (create_new)
6933 ssd = NULL;
6934 else
6935 ssd = is_defined_subspace (ss_name);
6936 /* Allow user to override the builtin attributes of subspaces. But
6937 only allow the attributes to be changed once! */
6938 if (ssd && SUBSPACE_DEFINED (ssd))
6939 {
6940 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
6941 current_subspace = ssd;
6942 if (!is_end_of_statement ())
6943 as_warn (_("Parameters of an existing subspace can\'t be modified"));
6944 demand_empty_rest_of_line ();
6945 return;
6946 }
6947 else
6948 {
6949 /* A new subspace. Load default values if it matches one of
6950 the builtin subspaces. */
6951 i = 0;
6952 while (pa_def_subspaces[i].name)
6953 {
6954 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
6955 {
6956 loadable = pa_def_subspaces[i].loadable;
6957 common = pa_def_subspaces[i].common;
6958 dup_common = pa_def_subspaces[i].dup_common;
6959 code_only = pa_def_subspaces[i].code_only;
6960 zero = pa_def_subspaces[i].zero;
6961 space_index = pa_def_subspaces[i].space_index;
6962 alignment = pa_def_subspaces[i].alignment;
6963 quadrant = pa_def_subspaces[i].quadrant;
6964 access = pa_def_subspaces[i].access;
6965 sort = pa_def_subspaces[i].sort;
252b5132
RH		 6966 break;
6967 }
6968 i++;
6969 }
6970 }
6971
6972 /* We should be working with a new subspace now. Fill in
6973 any information as specified by the user. */
6974 if (!is_end_of_statement ())
6975 {
6976 input_line_pointer++;
6977 while (!is_end_of_statement ())
6978 {
6979 name = input_line_pointer;
6980 c = get_symbol_end ();
6981 if ((strncasecmp (name, "quad", 4) == 0))
6982 {
6983 *input_line_pointer = c;
6984 input_line_pointer++;
6985 quadrant = get_absolute_expression ();
6986 }
6987 else if ((strncasecmp (name, "align", 5) == 0))
6988 {
6989 *input_line_pointer = c;
6990 input_line_pointer++;
6991 alignment = get_absolute_expression ();
6992 if (log2 (alignment) == -1)
6993 {
6994 as_bad (_("Alignment must be a power of 2"));
6995 alignment = 1;
6996 }
6997 }
6998 else if ((strncasecmp (name, "access", 6) == 0))
6999 {
7000 *input_line_pointer = c;
7001 input_line_pointer++;
7002 access = get_absolute_expression ();
7003 }
7004 else if ((strncasecmp (name, "sort", 4) == 0))
7005 {
7006 *input_line_pointer = c;
7007 input_line_pointer++;
7008 sort = get_absolute_expression ();
7009 }
7010 else if ((strncasecmp (name, "code_only", 9) == 0))
7011 {
7012 *input_line_pointer = c;
7013 code_only = 1;
7014 }
7015 else if ((strncasecmp (name, "unloadable", 10) == 0))
7016 {
7017 *input_line_pointer = c;
7018 loadable = 0;
7019 }
7020 else if ((strncasecmp (name, "common", 6) == 0))
7021 {
7022 *input_line_pointer = c;
7023 common = 1;
7024 }
7025 else if ((strncasecmp (name, "dup_comm", 8) == 0))
7026 {
7027 *input_line_pointer = c;
7028 dup_common = 1;
7029 }
7030 else if ((strncasecmp (name, "zero", 4) == 0))
7031 {
7032 *input_line_pointer = c;
7033 zero = 1;
7034 }
7035 else if ((strncasecmp (name, "first", 5) == 0))
7036 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
7037 else
7038 as_bad (_("Invalid .SUBSPACE argument"));
7039 if (!is_end_of_statement ())
7040 input_line_pointer++;
7041 }
7042 }
7043
7044 /* Compute a reasonable set of BFD flags based on the information
7045 in the .subspace directive. */
7046 applicable = bfd_applicable_section_flags (stdoutput);
7047 flags = 0;
7048 if (loadable)
7049 flags |= (SEC_ALLOC | SEC_LOAD);
7050 if (code_only)
7051 flags |= SEC_CODE;
7052 if (common || dup_common)
7053 flags |= SEC_IS_COMMON;
7054
7055 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
7056
7057 /* This is a zero-filled subspace (eg BSS). */
7058 if (zero)
7059 flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
7060
7061 applicable &= flags;
7062
7063 /* If this is an existing subspace, then we want to use the
7064 segment already associated with the subspace.
7065
7066 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
7067 lots of sections. It might be a problem in the PA ELF
7068 code, I do not know yet. For now avoid creating anything
7069 but the "standard" sections for ELF. */
7070 if (create_new)
7071 section = subseg_force_new (ss_name, 0);
7072 else if (ssd)
7073 section = ssd->ssd_seg;
252b5132
RH		 7074 else
7075 section = subseg_new (ss_name, 0);
7076
7077 if (zero)
7078 seg_info (section)->bss = 1;
7079
7080 /* Now set the flags. */
7081 bfd_set_section_flags (stdoutput, section, applicable);
7082
7083 /* Record any alignment request for this section. */
7084 record_alignment (section, log2 (alignment));
7085
7086 /* Set the starting offset for this section. */
7087 bfd_set_section_vma (stdoutput, section,
7088 pa_subspace_start (space, quadrant));
7089
7090 /* Now that all the flags are set, update an existing subspace,
7091 or create a new one. */
7092 if (ssd)
7093
7094 current_subspace = update_subspace (space, ss_name, loadable,
7095 code_only, common, dup_common,
7096 sort, zero, access, space_index,
7097 alignment, quadrant,
7098 section);
7099 else
7100 current_subspace = create_new_subspace (space, ss_name, loadable,
7101 code_only, common,
7102 dup_common, zero, sort,
7103 access, space_index,
7104 alignment, quadrant, section);
7105
7106 demand_empty_rest_of_line ();
7107 current_subspace->ssd_seg = section;
7108 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
7109 }
7110 SUBSPACE_DEFINED (current_subspace) = 1;
7111}
7112
7113
7114/* Create default space and subspace dictionaries. */
7115
7116static void
7117pa_spaces_begin ()
7118{
7119 int i;
7120
7121 space_dict_root = NULL;
7122 space_dict_last = NULL;
7123
7124 i = 0;
7125 while (pa_def_spaces[i].name)
7126 {
7127 char *name;
7128
7129 /* Pick the right name to use for the new section. */
49863f82 7130 name = pa_def_spaces[i].name;
252b5132
RH		 7131
7132 pa_def_spaces[i].segment = subseg_new (name, 0);
7133 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
7134 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
7135 pa_def_spaces[i].private, pa_def_spaces[i].sort,
7136 pa_def_spaces[i].segment, 0);
7137 i++;
7138 }
7139
7140 i = 0;
7141 while (pa_def_subspaces[i].name)
7142 {
7143 char *name;
7144 int applicable, subsegment;
7145 asection *segment = NULL;
7146 sd_chain_struct *space;
7147
7148 /* Pick the right name for the new section and pick the right
7149 subsegment number. */
49863f82
JL		 7150 name = pa_def_subspaces[i].name;
7151 subsegment = 0;
252b5132
RH		 7152
7153 /* Create the new section. */
7154 segment = subseg_new (name, subsegment);
7155
7156
7157 /* For SOM we want to replace the standard .text, .data, and .bss
7158 sections with our own. We also want to set BFD flags for
7159 all the built-in subspaces. */
49863f82 7160 if (!strcmp (pa_def_subspaces[i].name, "$CODE$"))
252b5132
RH		 7161 {
7162 text_section = segment;
7163 applicable = bfd_applicable_section_flags (stdoutput);
7164 bfd_set_section_flags (stdoutput, segment,
7165 applicable & (SEC_ALLOC | SEC_LOAD
7166 | SEC_RELOC | SEC_CODE
7167 | SEC_READONLY
7168 | SEC_HAS_CONTENTS));
7169 }
49863f82 7170 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$"))
252b5132
RH		 7171 {
7172 data_section = segment;
7173 applicable = bfd_applicable_section_flags (stdoutput);
7174 bfd_set_section_flags (stdoutput, segment,
7175 applicable & (SEC_ALLOC | SEC_LOAD
7176 | SEC_RELOC
7177 | SEC_HAS_CONTENTS));
7178
7179
7180 }
49863f82 7181 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$"))
252b5132
RH		 7182 {
7183 bss_section = segment;
7184 applicable = bfd_applicable_section_flags (stdoutput);
7185 bfd_set_section_flags (stdoutput, segment,
7186 applicable & SEC_ALLOC);
7187 }
49863f82 7188 else if (!strcmp (pa_def_subspaces[i].name, "$LIT$"))
252b5132
RH		 7189 {
7190 applicable = bfd_applicable_section_flags (stdoutput);
7191 bfd_set_section_flags (stdoutput, segment,
7192 applicable & (SEC_ALLOC | SEC_LOAD
7193 | SEC_RELOC
7194 | SEC_READONLY
7195 | SEC_HAS_CONTENTS));
7196 }
49863f82 7197 else if (!strcmp (pa_def_subspaces[i].name, "$MILLICODE$"))
252b5132
RH		 7198 {
7199 applicable = bfd_applicable_section_flags (stdoutput);
7200 bfd_set_section_flags (stdoutput, segment,
7201 applicable & (SEC_ALLOC | SEC_LOAD
7202 | SEC_RELOC
7203 | SEC_READONLY
7204 | SEC_HAS_CONTENTS));
7205 }
49863f82 7206 else if (!strcmp (pa_def_subspaces[i].name, "$UNWIND$"))
252b5132
RH		 7207 {
7208 applicable = bfd_applicable_section_flags (stdoutput);
7209 bfd_set_section_flags (stdoutput, segment,
7210 applicable & (SEC_ALLOC | SEC_LOAD
7211 | SEC_RELOC
7212 | SEC_READONLY
7213 | SEC_HAS_CONTENTS));
7214 }
7215
7216 /* Find the space associated with this subspace. */
7217 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
7218 def_space_index].segment);
7219 if (space == NULL)
7220 {
7221 as_fatal (_("Internal error: Unable to find containing space for %s."),
7222 pa_def_subspaces[i].name);
7223 }
7224
7225 create_new_subspace (space, name,
7226 pa_def_subspaces[i].loadable,
7227 pa_def_subspaces[i].code_only,
7228 pa_def_subspaces[i].common,
7229 pa_def_subspaces[i].dup_common,
7230 pa_def_subspaces[i].zero,
7231 pa_def_subspaces[i].sort,
7232 pa_def_subspaces[i].access,
7233 pa_def_subspaces[i].space_index,
7234 pa_def_subspaces[i].alignment,
7235 pa_def_subspaces[i].quadrant,
7236 segment);
7237 i++;
7238 }
7239}
7240
7241
7242
7243/* Create a new space NAME, with the appropriate flags as defined
7244 by the given parameters. */
7245
7246static sd_chain_struct *
7247create_new_space (name, spnum, loadable, defined, private,
7248 sort, seg, user_defined)
7249 char *name;
7250 int spnum;
7251 int loadable;
7252 int defined;
7253 int private;
7254 int sort;
7255 asection *seg;
7256 int user_defined;
7257{
7258 sd_chain_struct *chain_entry;
7259
7260 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
7261 if (!chain_entry)
7262 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
7263 name);
7264
7265 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
7266 strcpy (SPACE_NAME (chain_entry), name);
7267 SPACE_DEFINED (chain_entry) = defined;
7268 SPACE_USER_DEFINED (chain_entry) = user_defined;
7269 SPACE_SPNUM (chain_entry) = spnum;
7270
7271 chain_entry->sd_seg = seg;
7272 chain_entry->sd_last_subseg = -1;
7273 chain_entry->sd_subspaces = NULL;
7274 chain_entry->sd_next = NULL;
7275
7276 /* Find spot for the new space based on its sort key. */
7277 if (!space_dict_last)
7278 space_dict_last = chain_entry;
7279
7280 if (space_dict_root == NULL)
7281 space_dict_root = chain_entry;
7282 else
7283 {
7284 sd_chain_struct *chain_pointer;
7285 sd_chain_struct *prev_chain_pointer;
7286
7287 chain_pointer = space_dict_root;
7288 prev_chain_pointer = NULL;
7289
7290 while (chain_pointer)
7291 {
7292 prev_chain_pointer = chain_pointer;
7293 chain_pointer = chain_pointer->sd_next;
7294 }
7295
7296 /* At this point we've found the correct place to add the new
7297 entry. So add it and update the linked lists as appropriate. */
7298 if (prev_chain_pointer)
7299 {
7300 chain_entry->sd_next = chain_pointer;
7301 prev_chain_pointer->sd_next = chain_entry;
7302 }
7303 else
7304 {
7305 space_dict_root = chain_entry;
7306 chain_entry->sd_next = chain_pointer;
7307 }
7308
7309 if (chain_entry->sd_next == NULL)
7310 space_dict_last = chain_entry;
7311 }
7312
7313 /* This is here to catch predefined spaces which do not get
7314 modified by the user's input. Another call is found at
7315 the bottom of pa_parse_space_stmt to handle cases where
7316 the user modifies a predefined space. */
7317#ifdef obj_set_section_attributes
7318 obj_set_section_attributes (seg, defined, private, sort, spnum);
7319#endif
7320
7321 return chain_entry;
7322}
7323
7324/* Create a new subspace NAME, with the appropriate flags as defined
7325 by the given parameters.
7326
7327 Add the new subspace to the subspace dictionary chain in numerical
7328 order as defined by the SORT entries. */
7329
7330static ssd_chain_struct *
7331create_new_subspace (space, name, loadable, code_only, common,
7332 dup_common, is_zero, sort, access, space_index,
7333 alignment, quadrant, seg)
7334 sd_chain_struct *space;
7335 char *name;
7336 int loadable, code_only, common, dup_common, is_zero;
7337 int sort;
7338 int access;
7339 int space_index;
7340 int alignment;
7341 int quadrant;
7342 asection *seg;
7343{
7344 ssd_chain_struct *chain_entry;
7345
7346 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
7347 if (!chain_entry)
7348 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name);
7349
7350 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
7351 strcpy (SUBSPACE_NAME (chain_entry), name);
7352
7353 /* Initialize subspace_defined. When we hit a .subspace directive
7354 we'll set it to 1 which "locks-in" the subspace attributes. */
7355 SUBSPACE_DEFINED (chain_entry) = 0;
7356
49863f82 7357 chain_entry->ssd_subseg = 0;
252b5132
RH		 7358 chain_entry->ssd_seg = seg;
7359 chain_entry->ssd_next = NULL;
7360
7361 /* Find spot for the new subspace based on its sort key. */
7362 if (space->sd_subspaces == NULL)
7363 space->sd_subspaces = chain_entry;
7364 else
7365 {
7366 ssd_chain_struct *chain_pointer;
7367 ssd_chain_struct *prev_chain_pointer;
7368
7369 chain_pointer = space->sd_subspaces;
7370 prev_chain_pointer = NULL;
7371
7372 while (chain_pointer)
7373 {
7374 prev_chain_pointer = chain_pointer;
7375 chain_pointer = chain_pointer->ssd_next;
7376 }
7377
7378 /* Now we have somewhere to put the new entry. Insert it and update
7379 the links. */
7380 if (prev_chain_pointer)
7381 {
7382 chain_entry->ssd_next = chain_pointer;
7383 prev_chain_pointer->ssd_next = chain_entry;
7384 }
7385 else
7386 {
7387 space->sd_subspaces = chain_entry;
7388 chain_entry->ssd_next = chain_pointer;
7389 }
7390 }
7391
7392#ifdef obj_set_subsection_attributes
7393 obj_set_subsection_attributes (seg, space->sd_seg, access,
7394 sort, quadrant);
7395#endif
7396
7397 return chain_entry;
7398}
7399
7400/* Update the information for the given subspace based upon the
7401 various arguments. Return the modified subspace chain entry. */
7402
7403static ssd_chain_struct *
7404update_subspace (space, name, loadable, code_only, common, dup_common, sort,
7405 zero, access, space_index, alignment, quadrant, section)
7406 sd_chain_struct *space;
7407 char *name;
7408 int loadable;
7409 int code_only;
7410 int common;
7411 int dup_common;
7412 int zero;
7413 int sort;
7414 int access;
7415 int space_index;
7416 int alignment;
7417 int quadrant;
7418 asection *section;
7419{
7420 ssd_chain_struct *chain_entry;
7421
7422 chain_entry = is_defined_subspace (name);
7423
7424#ifdef obj_set_subsection_attributes
7425 obj_set_subsection_attributes (section, space->sd_seg, access,
7426 sort, quadrant);
7427#endif
7428
7429 return chain_entry;
7430}
7431
7432/* Return the space chain entry for the space with the name NAME or
7433 NULL if no such space exists. */
7434
7435static sd_chain_struct *
7436is_defined_space (name)
7437 char *name;
7438{
7439 sd_chain_struct *chain_pointer;
7440
7441 for (chain_pointer = space_dict_root;
7442 chain_pointer;
7443 chain_pointer = chain_pointer->sd_next)
7444 {
7445 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
7446 return chain_pointer;
7447 }
7448
7449 /* No mapping from segment to space was found. Return NULL. */
7450 return NULL;
7451}
7452
7453/* Find and return the space associated with the given seg. If no mapping
7454 from the given seg to a space is found, then return NULL.
7455
7456 Unlike subspaces, the number of spaces is not expected to grow much,
7457 so a linear exhaustive search is OK here. */
7458
7459static sd_chain_struct *
7460pa_segment_to_space (seg)
7461 asection *seg;
7462{
7463 sd_chain_struct *space_chain;
7464
7465 /* Walk through each space looking for the correct mapping. */
7466 for (space_chain = space_dict_root;
7467 space_chain;
7468 space_chain = space_chain->sd_next)
7469 {
7470 if (space_chain->sd_seg == seg)
7471 return space_chain;
7472 }
7473
7474 /* Mapping was not found. Return NULL. */
7475 return NULL;
7476}
7477
7478/* Return the space chain entry for the subspace with the name NAME or
7479 NULL if no such subspace exists.
7480
7481 Uses a linear search through all the spaces and subspaces, this may
7482 not be appropriate if we ever being placing each function in its
7483 own subspace. */
7484
7485static ssd_chain_struct *
7486is_defined_subspace (name)
7487 char *name;
7488{
7489 sd_chain_struct *space_chain;
7490 ssd_chain_struct *subspace_chain;
7491
7492 /* Walk through each space. */
7493 for (space_chain = space_dict_root;
7494 space_chain;
7495 space_chain = space_chain->sd_next)
7496 {
7497 /* Walk through each subspace looking for a name which matches. */
7498 for (subspace_chain = space_chain->sd_subspaces;
7499 subspace_chain;
7500 subspace_chain = subspace_chain->ssd_next)
7501 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
7502 return subspace_chain;
7503 }
7504
7505 /* Subspace wasn't found. Return NULL. */
7506 return NULL;
7507}
7508
7509/* Find and return the subspace associated with the given seg. If no
7510 mapping from the given seg to a subspace is found, then return NULL.
7511
7512 If we ever put each procedure/function within its own subspace
7513 (to make life easier on the compiler and linker), then this will have
7514 to become more efficient. */
7515
7516static ssd_chain_struct *
7517pa_subsegment_to_subspace (seg, subseg)
7518 asection *seg;
7519 subsegT subseg;
7520{
7521 sd_chain_struct *space_chain;
7522 ssd_chain_struct *subspace_chain;
7523
7524 /* Walk through each space. */
7525 for (space_chain = space_dict_root;
7526 space_chain;
7527 space_chain = space_chain->sd_next)
7528 {
7529 if (space_chain->sd_seg == seg)
7530 {
7531 /* Walk through each subspace within each space looking for
7532 the correct mapping. */
7533 for (subspace_chain = space_chain->sd_subspaces;
7534 subspace_chain;
7535 subspace_chain = subspace_chain->ssd_next)
7536 if (subspace_chain->ssd_subseg == (int) subseg)
7537 return subspace_chain;
7538 }
7539 }
7540
7541 /* No mapping from subsegment to subspace found. Return NULL. */
7542 return NULL;
7543}
7544
7545/* Given a number, try and find a space with the name number.
7546
7547 Return a pointer to a space dictionary chain entry for the space
7548 that was found or NULL on failure. */
7549
7550static sd_chain_struct *
7551pa_find_space_by_number (number)
7552 int number;
7553{
7554 sd_chain_struct *space_chain;
7555
7556 for (space_chain = space_dict_root;
7557 space_chain;
7558 space_chain = space_chain->sd_next)
7559 {
7560 if (SPACE_SPNUM (space_chain) == (unsigned int) number)
7561 return space_chain;
7562 }
7563
7564 /* No appropriate space found. Return NULL. */
7565 return NULL;
7566}
7567
7568/* Return the starting address for the given subspace. If the starting
7569 address is unknown then return zero. */
7570
7571static unsigned int
7572pa_subspace_start (space, quadrant)
7573 sd_chain_struct *space;
7574 int quadrant;
7575{
252b5132
RH		 7576 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
7577 is not correct for the PA OSF1 port. */
7578 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
7579 return 0x40000000;
7580 else if (space->sd_seg == data_section && quadrant == 1)
7581 return 0x40000000;
7582 else
7583 return 0;
252b5132
RH		 7584 return 0;
7585}
7586
7587/* FIXME. Needs documentation. */
7588static int
7589pa_next_subseg (space)
7590 sd_chain_struct *space;
7591{
7592
7593 space->sd_last_subseg++;
7594 return space->sd_last_subseg;
7595}
49863f82 7596#endif
252b5132
RH		 7597
7598/* Helper function for pa_stringer. Used to find the end of
7599 a string. */
7600
7601static unsigned int
7602pa_stringer_aux (s)
7603 char *s;
7604{
7605 unsigned int c = *s & CHAR_MASK;
7606
49863f82 7607#ifdef OBJ_SOM
252b5132
RH		 7608 /* We must have a valid space and subspace. */
7609 pa_check_current_space_and_subspace ();
49863f82 7610#endif
252b5132
RH		 7611
7612 switch (c)
7613 {
7614 case '\"':
7615 c = NOT_A_CHAR;
7616 break;
7617 default:
7618 break;
7619 }
7620 return c;
7621}
7622
7623/* Handle a .STRING type pseudo-op. */
7624
7625static void
7626pa_stringer (append_zero)
7627 int append_zero;
7628{
7629 char *s, num_buf[4];
7630 unsigned int c;
7631 int i;
7632
7633 /* Preprocess the string to handle PA-specific escape sequences.
7634 For example, \xDD where DD is a hexidecimal number should be
7635 changed to \OOO where OOO is an octal number. */
7636
7637 /* Skip the opening quote. */
7638 s = input_line_pointer + 1;
7639
7640 while (is_a_char (c = pa_stringer_aux (s++)))
7641 {
7642 if (c == '\\')
7643 {
7644 c = *s;
7645 switch (c)
7646 {
7647 /* Handle \x<num>. */
7648 case 'x':
7649 {
7650 unsigned int number;
7651 int num_digit;
7652 char dg;
7653 char *s_start = s;
7654
7655 /* Get pas the 'x'. */
7656 s++;
7657 for (num_digit = 0, number = 0, dg = *s;
7658 num_digit < 2
7659 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
7660 || (dg >= 'A' && dg <= 'F'));
7661 num_digit++)
7662 {
7663 if (isdigit (dg))
7664 number = number * 16 + dg - '0';
7665 else if (dg >= 'a' && dg <= 'f')
7666 number = number * 16 + dg - 'a' + 10;
7667 else
7668 number = number * 16 + dg - 'A' + 10;
7669
7670 s++;
7671 dg = *s;
7672 }
7673 if (num_digit > 0)
7674 {
7675 switch (num_digit)
7676 {
7677 case 1:
7678 sprintf (num_buf, "%02o", number);
7679 break;
7680 case 2:
7681 sprintf (num_buf, "%03o", number);
7682 break;
7683 }
7684 for (i = 0; i <= num_digit; i++)
7685 s_start[i] = num_buf[i];
7686 }
7687 break;
7688 }
7689 /* This might be a "\"", skip over the escaped char. */
7690 default:
7691 s++;
7692 break;
7693 }
7694 }
7695 }
7696 stringer (append_zero);
7697 pa_undefine_label ();
7698}
7699
7700/* Handle a .VERSION pseudo-op. */
7701
7702static void
7703pa_version (unused)
7704 int unused;
7705{
7706 obj_version (0);
7707 pa_undefine_label ();
7708}
7709
7710#ifdef OBJ_SOM
7711
7712/* Handle a .COMPILER pseudo-op. */
7713
7714static void
7715pa_compiler (unused)
7716 int unused;
7717{
7718 obj_som_compiler (0);
7719 pa_undefine_label ();
7720}
7721
7722#endif
7723
7724/* Handle a .COPYRIGHT pseudo-op. */
7725
7726static void
7727pa_copyright (unused)
7728 int unused;
7729{
7730 obj_copyright (0);
7731 pa_undefine_label ();
7732}
7733
7734/* Just like a normal cons, but when finished we have to undefine
7735 the latest space label. */
7736
7737static void
7738pa_cons (nbytes)
7739 int nbytes;
7740{
7741 cons (nbytes);
7742 pa_undefine_label ();
7743}
7744
7745/* Switch to the data space. As usual delete our label. */
7746
7747static void
7748pa_data (unused)
7749 int unused;
7750{
49863f82 7751#ifdef OBJ_SOM
252b5132
RH		 7752 current_space = is_defined_space ("$PRIVATE$");
7753 current_subspace
7754 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 7755#endif
252b5132
RH		 7756 s_data (0);
7757 pa_undefine_label ();
7758}
7759
7760/* Like float_cons, but we need to undefine our label. */
7761
7762static void
7763pa_float_cons (float_type)
7764 int float_type;
7765{
7766 float_cons (float_type);
7767 pa_undefine_label ();
7768}
7769
7770/* Like s_fill, but delete our label when finished. */
7771
7772static void
7773pa_fill (unused)
7774 int unused;
7775{
49863f82 7776#ifdef OBJ_SOM
252b5132
RH		 7777 /* We must have a valid space and subspace. */
7778 pa_check_current_space_and_subspace ();
49863f82 7779#endif
252b5132
RH		 7780
7781 s_fill (0);
7782 pa_undefine_label ();
7783}
7784
7785/* Like lcomm, but delete our label when finished. */
7786
7787static void
7788pa_lcomm (needs_align)
7789 int needs_align;
7790{
49863f82 7791#ifdef OBJ_SOM
252b5132
RH		 7792 /* We must have a valid space and subspace. */
7793 pa_check_current_space_and_subspace ();
49863f82 7794#endif
252b5132
RH		 7795
7796 s_lcomm (needs_align);
7797 pa_undefine_label ();
7798}
7799
7800/* Like lsym, but delete our label when finished. */
7801
7802static void
7803pa_lsym (unused)
7804 int unused;
7805{
49863f82 7806#ifdef OBJ_SOM
252b5132
RH		 7807 /* We must have a valid space and subspace. */
7808 pa_check_current_space_and_subspace ();
49863f82 7809#endif
252b5132
RH		 7810
7811 s_lsym (0);
7812 pa_undefine_label ();
7813}
7814
7815/* Switch to the text space. Like s_text, but delete our
7816 label when finished. */
7817static void
7818pa_text (unused)
7819 int unused;
7820{
49863f82 7821#ifdef OBJ_SOM
252b5132
RH		 7822 current_space = is_defined_space ("$TEXT$");
7823 current_subspace
7824 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
49863f82 7825#endif
252b5132
RH		 7826
7827 s_text (0);
7828 pa_undefine_label ();
7829}
7830
7831/* On the PA relocations which involve function symbols must not be
7832 adjusted. This so that the linker can know when/how to create argument
7833 relocation stubs for indirect calls and calls to static functions.
7834
7835 "T" field selectors create DLT relative fixups for accessing
7836 globals and statics in PIC code; each DLT relative fixup creates
7837 an entry in the DLT table. The entries contain the address of
7838 the final target (eg accessing "foo" would create a DLT entry
7839 with the address of "foo").
7840
7841 Unfortunately, the HP linker doesn't take into account any addend
7842 when generating the DLT; so accessing $LIT$+8 puts the address of
7843 $LIT$ into the DLT rather than the address of $LIT$+8.
7844
7845 The end result is we can't perform relocation symbol reductions for
7846 any fixup which creates entries in the DLT (eg they use "T" field
7847 selectors).
7848
7849 Reject reductions involving symbols with external scope; such
7850 reductions make life a living hell for object file editors.
7851
7852 FIXME. Also reject R_HPPA relocations which are 32bits wide in
7853 the code space. The SOM BFD backend doesn't know how to pull the
7854 right bits out of an instruction. */
7855
7856int
7857hppa_fix_adjustable (fixp)
7858 fixS *fixp;
7859{
7860 struct hppa_fix_struct *hppa_fix;
7861
7862 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
7863
7864#ifdef OBJ_SOM
7865 /* Reject reductions of symbols in 32bit relocs. */
7866 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
7867 return 0;
7868
7869 /* Reject reductions of symbols in sym1-sym2 expressions when
7870 the fixup will occur in a CODE subspace.
7871
7872 XXX FIXME: Long term we probably want to reject all of these;
7873 for example reducing in the debug section would lose if we ever
7874 supported using the optimizing hp linker. */
7875 if (fixp->fx_addsy
7876 && fixp->fx_subsy
7877 && (hppa_fix->segment->flags & SEC_CODE))
7878 {
7879 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
398e8c25 7880 symbol_mark_used_in_reloc (fixp->fx_subsy);
252b5132
RH		 7881 return 0;
7882 }
7883
7884 /* We can't adjust any relocs that use LR% and RR% field selectors.
7885 That confuses the HP linker. */
7886 if (hppa_fix->fx_r_field == e_lrsel
7887 || hppa_fix->fx_r_field == e_rrsel
7888 || hppa_fix->fx_r_field == e_nlrsel)
7889 return 0;
7890#endif
7891
7892 /* Reject reductions of symbols in DLT relative relocs,
7893 relocations with plabels. */
7894 if (hppa_fix->fx_r_field == e_tsel
7895 || hppa_fix->fx_r_field == e_ltsel
7896 || hppa_fix->fx_r_field == e_rtsel
7897 || hppa_fix->fx_r_field == e_psel
7898 || hppa_fix->fx_r_field == e_rpsel
7899 || hppa_fix->fx_r_field == e_lpsel)
7900 return 0;
7901
a0f75b47 7902 if (fixp->fx_addsy && S_IS_EXTERNAL (fixp->fx_addsy))
252b5132
RH		 7903 return 0;
7904
7905 /* Reject absolute calls (jumps). */
7906 if (hppa_fix->fx_r_type == R_HPPA_ABS_CALL)
7907 return 0;
7908
7909 /* Reject reductions of function symbols. */
a0f75b47 7910 if (fixp->fx_addsy == 0 || ! S_IS_FUNCTION (fixp->fx_addsy))
252b5132
RH		 7911 return 1;
7912
7913 return 0;
7914}
7915
7916/* Return nonzero if the fixup in FIXP will require a relocation,
7917 even it if appears that the fixup could be completely handled
7918 within GAS. */
7919
7920int
7921hppa_force_relocation (fixp)
7922 fixS *fixp;
7923{
7924 struct hppa_fix_struct *hppa_fixp;
7925 int distance;
7926
7927 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
7928#ifdef OBJ_SOM
7929 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT
7930 || fixp->fx_r_type == R_HPPA_BEGIN_BRTAB
7931 || fixp->fx_r_type == R_HPPA_END_BRTAB
7932 || fixp->fx_r_type == R_HPPA_BEGIN_TRY
7933 || fixp->fx_r_type == R_HPPA_END_TRY
7934 || (fixp->fx_addsy != NULL && fixp->fx_subsy != NULL
7935 && (hppa_fixp->segment->flags & SEC_CODE) != 0))
7936 return 1;
7937#endif
7938
7939#define arg_reloc_stub_needed(CALLER, CALLEE) \
7940 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
7941
49863f82 7942#ifdef OBJ_SOM
252b5132
RH		 7943 /* It is necessary to force PC-relative calls/jumps to have a relocation
7944 entry if they're going to need either a argument relocation or long
7945 call stub. FIXME. Can't we need the same for absolute calls? */
7946 if (fixp->fx_pcrel && fixp->fx_addsy
7947 && (arg_reloc_stub_needed ((long) ((obj_symbol_type *)
a0f75b47
ILT		 7948 symbol_get_bfdsym (fixp->fx_addsy))->tc_data.ap.hppa_arg_reloc,
7949 hppa_fixp->fx_arg_reloc)))
252b5132 7950 return 1;
49863f82 7951#endif
252b5132
RH		 7952 distance = (fixp->fx_offset + S_GET_VALUE (fixp->fx_addsy)
7953 - md_pcrel_from (fixp));
7954 /* Now check and see if we're going to need a long-branch stub. */
7955 if (fixp->fx_r_type == R_HPPA_PCREL_CALL
7956 && (distance > 262143 || distance < -262144))
7957 return 1;
7958
7959 if (fixp->fx_r_type == R_HPPA_ABS_CALL)
7960 return 1;
7961#undef arg_reloc_stub_needed
7962
7963 /* No need (yet) to force another relocations to be emitted. */
7964 return 0;
7965}
7966
7967/* Now for some ELF specific code. FIXME. */
7968#ifdef OBJ_ELF
7969/* Mark the end of a function so that it's possible to compute
7970 the size of the function in hppa_elf_final_processing. */
7971
7972static void
7973hppa_elf_mark_end_of_function ()
7974{
7975 /* ELF does not have EXIT relocations. All we do is create a
7976 temporary symbol marking the end of the function. */
7977 char *name = (char *)
7978 xmalloc (strlen ("L$\001end_") +
7979 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
7980
7981 if (name)
7982 {
7983 symbolS *symbolP;
7984
7985 strcpy (name, "L$\001end_");
7986 strcat (name, S_GET_NAME (last_call_info->start_symbol));
7987
7988 /* If we have a .exit followed by a .procend, then the
7989 symbol will have already been defined. */
7990 symbolP = symbol_find (name);
7991 if (symbolP)
7992 {
7993 /* The symbol has already been defined! This can
7994 happen if we have a .exit followed by a .procend.
7995
7996 This is *not* an error. All we want to do is free
7997 the memory we just allocated for the name and continue. */
7998 xfree (name);
7999 }
8000 else
8001 {
8002 /* symbol value should be the offset of the
8003 last instruction of the function */
8004 symbolP = symbol_new (name, now_seg, (valueT) (frag_now_fix () - 4),
8005 frag_now);
8006
8007 assert (symbolP);
a0f75b47 8008 S_CLEAR_EXTERNAL (symbolP);
252b5132
RH		 8009 symbol_table_insert (symbolP);
8010 }
8011
8012 if (symbolP)
8013 last_call_info->end_symbol = symbolP;
8014 else
8015 as_bad (_("Symbol '%s' could not be created."), name);
8016
8017 }
8018 else
8019 as_bad (_("No memory for symbol name."));
8020
8021}
8022
8023/* For ELF, this function serves one purpose: to setup the st_size
8024 field of STT_FUNC symbols. To do this, we need to scan the
8025 call_info structure list, determining st_size in by taking the
8026 difference in the address of the beginning/end marker symbols. */
8027
8028void
8029elf_hppa_final_processing ()
8030{
8031 struct call_info *call_info_pointer;
8032
8033 for (call_info_pointer = call_info_root;
8034 call_info_pointer;
8035 call_info_pointer = call_info_pointer->ci_next)
8036 {
8037 elf_symbol_type *esym
a0f75b47
ILT		 8038 = ((elf_symbol_type *)
8039 symbol_get_bfdsym (call_info_pointer->start_symbol));
252b5132
RH		 8040 esym->internal_elf_sym.st_size =
8041 S_GET_VALUE (call_info_pointer->end_symbol)
8042 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
8043 }
8044}
8045#endif
2d93dcc4
JL		 8046
8047#ifdef OBJ_ELF
8048pa_end_of_source ()
8049{
8050 if (debug_type == DEBUG_DWARF2)
8051 dwarf2_finish ();
8052}
8053#endif
GDB Binutils - Deliverables
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