Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-sh.c -- Assemble code for the Hitachi Super-H |
f7e42eb4 NC |
2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
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 | |
19 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
6b31947e | 22 | /* Written By Steve Chamberlain <sac@cygnus.com> */ |
252b5132 RH |
23 | |
24 | #include <stdio.h> | |
25 | #include "as.h" | |
26 | #include "bfd.h" | |
27 | #include "subsegs.h" | |
28 | #define DEFINE_TABLE | |
29 | #include "opcodes/sh-opc.h" | |
30 | #include <ctype.h> | |
43841e91 | 31 | #include "struc-symbol.h" |
d4845d57 JR |
32 | |
33 | #ifdef OBJ_ELF | |
34 | #include "elf/sh.h" | |
35 | #endif | |
36 | ||
0d10e182 | 37 | #include "dwarf2dbg.h" |
0d10e182 | 38 | |
252b5132 RH |
39 | const char comment_chars[] = "!"; |
40 | const char line_separator_chars[] = ";"; | |
41 | const char line_comment_chars[] = "!#"; | |
42 | ||
43 | static void s_uses PARAMS ((int)); | |
44 | ||
45 | static void sh_count_relocs PARAMS ((bfd *, segT, PTR)); | |
46 | static void sh_frob_section PARAMS ((bfd *, segT, PTR)); | |
47 | ||
252b5132 RH |
48 | void cons (); |
49 | void s_align_bytes (); | |
50 | static void s_uacons PARAMS ((int)); | |
d4845d57 | 51 | static sh_opcode_info *find_cooked_opcode PARAMS ((char **)); |
0d10e182 | 52 | static unsigned int assemble_ppi PARAMS ((char *, sh_opcode_info *)); |
252b5132 | 53 | |
a1cc9221 AO |
54 | #ifdef OBJ_ELF |
55 | static void sh_elf_cons PARAMS ((int)); | |
56 | ||
57 | symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */ | |
58 | #endif | |
59 | ||
252b5132 RH |
60 | int shl = 0; |
61 | ||
62 | static void | |
63 | little (ignore) | |
43841e91 | 64 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
65 | { |
66 | shl = 1; | |
67 | target_big_endian = 0; | |
68 | } | |
69 | ||
d4845d57 JR |
70 | /* This table describes all the machine specific pseudo-ops the assembler |
71 | has to support. The fields are: | |
72 | pseudo-op name without dot | |
73 | function to call to execute this pseudo-op | |
6b31947e | 74 | Integer arg to pass to the function. */ |
d4845d57 | 75 | |
252b5132 RH |
76 | const pseudo_typeS md_pseudo_table[] = |
77 | { | |
a1cc9221 AO |
78 | #ifdef OBJ_ELF |
79 | {"long", sh_elf_cons, 4}, | |
80 | {"int", sh_elf_cons, 4}, | |
81 | {"word", sh_elf_cons, 2}, | |
82 | {"short", sh_elf_cons, 2}, | |
83 | #else | |
252b5132 RH |
84 | {"int", cons, 4}, |
85 | {"word", cons, 2}, | |
a1cc9221 | 86 | #endif /* OBJ_ELF */ |
252b5132 RH |
87 | {"form", listing_psize, 0}, |
88 | {"little", little, 0}, | |
89 | {"heading", listing_title, 0}, | |
90 | {"import", s_ignore, 0}, | |
91 | {"page", listing_eject, 0}, | |
92 | {"program", s_ignore, 0}, | |
93 | {"uses", s_uses, 0}, | |
94 | {"uaword", s_uacons, 2}, | |
95 | {"ualong", s_uacons, 4}, | |
de68de20 AO |
96 | {"uaquad", s_uacons, 8}, |
97 | {"2byte", s_uacons, 2}, | |
98 | {"4byte", s_uacons, 4}, | |
99 | {"8byte", s_uacons, 8}, | |
100 | {"file", dwarf2_directive_file, 0 }, | |
101 | {"loc", dwarf2_directive_loc, 0 }, | |
252b5132 RH |
102 | {0, 0, 0} |
103 | }; | |
104 | ||
105 | /*int md_reloc_size; */ | |
106 | ||
107 | int sh_relax; /* set if -relax seen */ | |
108 | ||
109 | /* Whether -small was seen. */ | |
110 | ||
111 | int sh_small; | |
112 | ||
d4845d57 JR |
113 | /* Whether -dsp was seen. */ |
114 | ||
115 | static int sh_dsp; | |
116 | ||
117 | /* The bit mask of architectures that could | |
118 | accomodate the insns seen so far. */ | |
119 | static int valid_arch; | |
120 | ||
252b5132 RH |
121 | const char EXP_CHARS[] = "eE"; |
122 | ||
6b31947e | 123 | /* Chars that mean this number is a floating point constant. */ |
252b5132 RH |
124 | /* As in 0f12.456 */ |
125 | /* or 0d1.2345e12 */ | |
126 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
127 | ||
128 | #define C(a,b) ENCODE_RELAX(a,b) | |
129 | ||
252b5132 RH |
130 | #define ENCODE_RELAX(what,length) (((what) << 4) + (length)) |
131 | #define GET_WHAT(x) ((x>>4)) | |
132 | ||
6b31947e | 133 | /* These are the three types of relaxable instrction. */ |
252b5132 RH |
134 | #define COND_JUMP 1 |
135 | #define COND_JUMP_DELAY 2 | |
136 | #define UNCOND_JUMP 3 | |
137 | #define END 4 | |
138 | ||
139 | #define UNDEF_DISP 0 | |
140 | #define COND8 1 | |
141 | #define COND12 2 | |
142 | #define COND32 3 | |
143 | #define UNCOND12 1 | |
144 | #define UNCOND32 2 | |
145 | #define UNDEF_WORD_DISP 4 | |
146 | ||
147 | #define UNCOND12 1 | |
148 | #define UNCOND32 2 | |
149 | ||
150 | /* Branch displacements are from the address of the branch plus | |
151 | four, thus all minimum and maximum values have 4 added to them. */ | |
152 | #define COND8_F 258 | |
153 | #define COND8_M -252 | |
154 | #define COND8_LENGTH 2 | |
155 | ||
156 | /* There is one extra instruction before the branch, so we must add | |
157 | two more bytes to account for it. */ | |
158 | #define COND12_F 4100 | |
159 | #define COND12_M -4090 | |
160 | #define COND12_LENGTH 6 | |
161 | ||
162 | #define COND12_DELAY_LENGTH 4 | |
163 | ||
164 | /* ??? The minimum and maximum values are wrong, but this does not matter | |
165 | since this relocation type is not supported yet. */ | |
166 | #define COND32_F (1<<30) | |
167 | #define COND32_M -(1<<30) | |
168 | #define COND32_LENGTH 14 | |
169 | ||
170 | #define UNCOND12_F 4098 | |
171 | #define UNCOND12_M -4092 | |
172 | #define UNCOND12_LENGTH 2 | |
173 | ||
174 | /* ??? The minimum and maximum values are wrong, but this does not matter | |
175 | since this relocation type is not supported yet. */ | |
176 | #define UNCOND32_F (1<<30) | |
177 | #define UNCOND32_M -(1<<30) | |
178 | #define UNCOND32_LENGTH 14 | |
179 | ||
43841e91 NC |
180 | #define EMPTY { 0, 0, 0, 0 } |
181 | ||
252b5132 | 182 | const relax_typeS md_relax_table[C (END, 0)] = { |
43841e91 NC |
183 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, |
184 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
252b5132 | 185 | |
43841e91 | 186 | EMPTY, |
252b5132 RH |
187 | /* C (COND_JUMP, COND8) */ |
188 | { COND8_F, COND8_M, COND8_LENGTH, C (COND_JUMP, COND12) }, | |
189 | /* C (COND_JUMP, COND12) */ | |
190 | { COND12_F, COND12_M, COND12_LENGTH, C (COND_JUMP, COND32), }, | |
191 | /* C (COND_JUMP, COND32) */ | |
192 | { COND32_F, COND32_M, COND32_LENGTH, 0, }, | |
43841e91 NC |
193 | EMPTY, EMPTY, EMPTY, EMPTY, |
194 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
252b5132 | 195 | |
43841e91 | 196 | EMPTY, |
252b5132 RH |
197 | /* C (COND_JUMP_DELAY, COND8) */ |
198 | { COND8_F, COND8_M, COND8_LENGTH, C (COND_JUMP_DELAY, COND12) }, | |
199 | /* C (COND_JUMP_DELAY, COND12) */ | |
200 | { COND12_F, COND12_M, COND12_DELAY_LENGTH, C (COND_JUMP_DELAY, COND32), }, | |
201 | /* C (COND_JUMP_DELAY, COND32) */ | |
202 | { COND32_F, COND32_M, COND32_LENGTH, 0, }, | |
43841e91 NC |
203 | EMPTY, EMPTY, EMPTY, EMPTY, |
204 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
252b5132 | 205 | |
43841e91 | 206 | EMPTY, |
252b5132 RH |
207 | /* C (UNCOND_JUMP, UNCOND12) */ |
208 | { UNCOND12_F, UNCOND12_M, UNCOND12_LENGTH, C (UNCOND_JUMP, UNCOND32), }, | |
209 | /* C (UNCOND_JUMP, UNCOND32) */ | |
210 | { UNCOND32_F, UNCOND32_M, UNCOND32_LENGTH, 0, }, | |
43841e91 NC |
211 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, |
212 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
252b5132 RH |
213 | }; |
214 | ||
43841e91 NC |
215 | #undef EMPTY |
216 | ||
252b5132 RH |
217 | static struct hash_control *opcode_hash_control; /* Opcode mnemonics */ |
218 | ||
a1cc9221 AO |
219 | \f |
220 | #ifdef OBJ_ELF | |
81d4177b | 221 | /* Parse @got, etc. and return the desired relocation. |
a1cc9221 AO |
222 | If we have additional arithmetic expression, then we fill in new_exp_p. */ |
223 | static bfd_reloc_code_real_type | |
224 | sh_elf_suffix (str_p, exp_p, new_exp_p) | |
225 | char **str_p; | |
226 | expressionS *exp_p, *new_exp_p; | |
227 | { | |
228 | struct map_bfd { | |
229 | char *string; | |
230 | int length; | |
231 | bfd_reloc_code_real_type reloc; | |
232 | }; | |
233 | ||
234 | char ident[20]; | |
235 | char *str = *str_p; | |
236 | char *str2; | |
237 | int ch; | |
238 | int len; | |
239 | struct map_bfd *ptr; | |
240 | ||
bc805888 | 241 | #define MAP(str,reloc) { str, sizeof (str)-1, reloc } |
a1cc9221 AO |
242 | |
243 | static struct map_bfd mapping[] = { | |
244 | MAP ("got", BFD_RELOC_32_GOT_PCREL), | |
245 | MAP ("plt", BFD_RELOC_32_PLT_PCREL), | |
246 | MAP ("gotoff", BFD_RELOC_32_GOTOFF), | |
247 | { (char *)0, 0, BFD_RELOC_UNUSED } | |
248 | }; | |
249 | ||
250 | if (*str++ != '@') | |
251 | return BFD_RELOC_UNUSED; | |
252 | ||
253 | for (ch = *str, str2 = ident; | |
254 | (str2 < ident + sizeof (ident) - 1 | |
255 | && (isalnum (ch) || ch == '@')); | |
256 | ch = *++str) | |
257 | { | |
258 | *str2++ = (islower (ch)) ? ch : tolower (ch); | |
259 | } | |
260 | ||
261 | *str2 = '\0'; | |
262 | len = str2 - ident; | |
263 | ||
264 | ch = ident[0]; | |
265 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
266 | if (ch == ptr->string[0] | |
267 | && len == ptr->length | |
268 | && memcmp (ident, ptr->string, ptr->length) == 0) | |
269 | { | |
270 | /* Now check for identifier@suffix+constant */ | |
271 | if (*str == '-' || *str == '+') | |
272 | { | |
273 | char *orig_line = input_line_pointer; | |
274 | ||
275 | input_line_pointer = str; | |
276 | expression (new_exp_p); | |
277 | if (new_exp_p->X_op == O_constant) | |
278 | { | |
279 | exp_p->X_add_number += new_exp_p->X_add_number; | |
280 | str = input_line_pointer; | |
281 | } | |
282 | if (new_exp_p->X_op == O_subtract) | |
283 | str = input_line_pointer; | |
284 | ||
285 | if (&input_line_pointer != str_p) | |
286 | input_line_pointer = orig_line; | |
287 | } | |
288 | ||
289 | *str_p = str; | |
290 | return ptr->reloc; | |
291 | } | |
292 | ||
293 | return BFD_RELOC_UNUSED; | |
294 | } | |
295 | ||
296 | /* The regular cons() function, that reads constants, doesn't support | |
297 | suffixes such as @GOT, @GOTOFF and @PLT, that generate | |
298 | machine-specific relocation types. So we must define it here. */ | |
299 | /* Clobbers input_line_pointer, checks end-of-line. */ | |
300 | static void | |
301 | sh_elf_cons (nbytes) | |
302 | register int nbytes; /* 1=.byte, 2=.word, 4=.long */ | |
303 | { | |
304 | expressionS exp, new_exp; | |
305 | bfd_reloc_code_real_type reloc; | |
306 | const char *name; | |
307 | ||
308 | if (is_it_end_of_statement ()) | |
309 | { | |
310 | demand_empty_rest_of_line (); | |
311 | return; | |
312 | } | |
313 | ||
314 | do | |
315 | { | |
316 | expression (&exp); | |
317 | new_exp.X_op = O_absent; | |
318 | new_exp.X_add_symbol = new_exp.X_op_symbol = NULL; | |
319 | /* If the _GLOBAL_OFFSET_TABLE_ symbol hasn't been found yet, | |
320 | use the name of the symbol to tell whether it's the | |
321 | _GLOBAL_OFFSET_TABLE_. If it has, comparing the symbols is | |
322 | sufficient. */ | |
323 | if (! GOT_symbol && exp.X_add_symbol) | |
324 | name = S_GET_NAME (exp.X_add_symbol); | |
325 | else | |
326 | name = NULL; | |
327 | /* Check whether this expression involves the | |
328 | _GLOBAL_OFFSET_TABLE_ symbol, by itself or added to a | |
329 | difference of two other symbols. */ | |
330 | if (((GOT_symbol && GOT_symbol == exp.X_add_symbol) | |
331 | || (! GOT_symbol && name | |
332 | && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0)) | |
333 | && (exp.X_op == O_symbol | |
334 | || (exp.X_op == O_add | |
335 | && ((symbol_get_value_expression (exp.X_op_symbol)->X_op) | |
336 | == O_subtract)))) | |
337 | { | |
338 | reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, | |
339 | BFD_RELOC_32); | |
340 | int size = bfd_get_reloc_size (reloc_howto); | |
341 | ||
342 | if (GOT_symbol == NULL) | |
343 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); | |
344 | ||
345 | if (size > nbytes) | |
346 | as_bad (_("%s relocations do not fit in %d bytes\n"), | |
347 | reloc_howto->name, nbytes); | |
348 | else | |
349 | { | |
350 | register char *p = frag_more ((int) nbytes); | |
351 | int offset = nbytes - size; | |
352 | ||
353 | fix_new_exp (frag_now, p - frag_now->fr_literal + offset, | |
354 | size, &exp, 0, TC_RELOC_GLOBAL_OFFSET_TABLE); | |
355 | } | |
356 | } | |
357 | /* Check if this symbol involves one of the magic suffixes, such | |
358 | as @GOT, @GOTOFF or @PLT, and determine which relocation type | |
359 | to use. */ | |
360 | else if ((exp.X_op == O_symbol || (exp.X_op == O_add && exp.X_op_symbol)) | |
361 | && *input_line_pointer == '@' | |
362 | && ((reloc = sh_elf_suffix (&input_line_pointer, &exp, &new_exp)) | |
363 | != BFD_RELOC_UNUSED)) | |
364 | { | |
365 | reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, | |
366 | reloc); | |
367 | int size = bfd_get_reloc_size (reloc_howto); | |
368 | ||
369 | /* Force a GOT to be generated. */ | |
370 | if (GOT_symbol == NULL) | |
371 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); | |
372 | ||
373 | if (size > nbytes) | |
374 | as_bad (_("%s relocations do not fit in %d bytes\n"), | |
375 | reloc_howto->name, nbytes); | |
376 | else | |
377 | { | |
378 | register char *p = frag_more ((int) nbytes); | |
379 | int offset = nbytes - size; | |
380 | ||
381 | fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, | |
382 | &exp, 0, reloc); | |
81d4177b | 383 | if (new_exp.X_op != O_absent) |
a1cc9221 AO |
384 | fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, |
385 | &new_exp, 0, BFD_RELOC_32); | |
386 | } | |
387 | } | |
388 | else | |
389 | emit_expr (&exp, (unsigned int) nbytes); | |
390 | } | |
391 | while (*input_line_pointer++ == ','); | |
392 | ||
81d4177b | 393 | input_line_pointer--; /* Put terminator back into stream. */ |
a1cc9221 AO |
394 | if (*input_line_pointer == '#' || *input_line_pointer == '!') |
395 | { | |
dda5ecfc | 396 | while (! is_end_of_line[(unsigned char) *input_line_pointer++]); |
a1cc9221 AO |
397 | } |
398 | else | |
399 | demand_empty_rest_of_line (); | |
400 | } | |
401 | #endif /* OBJ_ELF */ | |
402 | ||
403 | \f | |
6b31947e NC |
404 | /* This function is called once, at assembler startup time. This should |
405 | set up all the tables, etc that the MD part of the assembler needs. */ | |
252b5132 RH |
406 | |
407 | void | |
408 | md_begin () | |
409 | { | |
410 | sh_opcode_info *opcode; | |
411 | char *prev_name = ""; | |
d4845d57 | 412 | int target_arch; |
252b5132 | 413 | |
056350c6 NC |
414 | #ifdef TE_PE |
415 | /* The WinCE OS only supports little endian executables. */ | |
416 | target_big_endian = 0; | |
417 | #else | |
252b5132 RH |
418 | if (! shl) |
419 | target_big_endian = 1; | |
056350c6 | 420 | #endif |
252b5132 | 421 | |
d4845d57 JR |
422 | target_arch = arch_sh1_up & ~(sh_dsp ? arch_sh3e_up : arch_sh_dsp_up); |
423 | valid_arch = target_arch; | |
424 | ||
252b5132 RH |
425 | opcode_hash_control = hash_new (); |
426 | ||
6b31947e | 427 | /* Insert unique names into hash table. */ |
252b5132 RH |
428 | for (opcode = sh_table; opcode->name; opcode++) |
429 | { | |
a37c8f88 | 430 | if (strcmp (prev_name, opcode->name)) |
252b5132 | 431 | { |
a37c8f88 JR |
432 | if (! (opcode->arch & target_arch)) |
433 | continue; | |
252b5132 RH |
434 | prev_name = opcode->name; |
435 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
436 | } | |
437 | else | |
438 | { | |
439 | /* Make all the opcodes with the same name point to the same | |
6b31947e | 440 | string. */ |
252b5132 RH |
441 | opcode->name = prev_name; |
442 | } | |
443 | } | |
444 | } | |
445 | ||
446 | static int reg_m; | |
447 | static int reg_n; | |
d4845d57 JR |
448 | static int reg_x, reg_y; |
449 | static int reg_efg; | |
252b5132 RH |
450 | static int reg_b; |
451 | ||
252b5132 RH |
452 | typedef struct |
453 | { | |
454 | sh_arg_type type; | |
455 | int reg; | |
015551fc | 456 | expressionS immediate; |
252b5132 | 457 | } |
252b5132 RH |
458 | sh_operand_info; |
459 | ||
dead1419 JR |
460 | #define IDENT_CHAR(c) (isalnum (c) || (c) == '_') |
461 | ||
6b31947e NC |
462 | /* Try to parse a reg name. Return the number of chars consumed. */ |
463 | ||
252b5132 RH |
464 | static int |
465 | parse_reg (src, mode, reg) | |
466 | char *src; | |
467 | int *mode; | |
468 | int *reg; | |
469 | { | |
e46fee70 HPN |
470 | char l0 = tolower (src[0]); |
471 | char l1 = l0 ? tolower (src[1]) : 0; | |
472 | ||
dead1419 | 473 | /* We use ! IDENT_CHAR for the next character after the register name, to |
252b5132 | 474 | make sure that we won't accidentally recognize a symbol name such as |
dead1419 | 475 | 'sram' or sr_ram as being a reference to the register 'sr'. */ |
252b5132 | 476 | |
e46fee70 | 477 | if (l0 == 'r') |
252b5132 | 478 | { |
e46fee70 | 479 | if (l1 == '1') |
d4845d57 JR |
480 | { |
481 | if (src[2] >= '0' && src[2] <= '5' | |
dead1419 | 482 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
483 | { |
484 | *mode = A_REG_N; | |
485 | *reg = 10 + src[2] - '0'; | |
486 | return 3; | |
487 | } | |
488 | } | |
e46fee70 | 489 | if (l1 >= '0' && l1 <= '9' |
dead1419 | 490 | && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
491 | { |
492 | *mode = A_REG_N; | |
e46fee70 | 493 | *reg = (l1 - '0'); |
d4845d57 JR |
494 | return 2; |
495 | } | |
e46fee70 | 496 | if (l1 >= '0' && l1 <= '7' && strncasecmp (&src[2], "_bank", 5) == 0 |
dead1419 JR |
497 | && ! IDENT_CHAR ((unsigned char) src[7])) |
498 | { | |
499 | *mode = A_REG_B; | |
e46fee70 | 500 | *reg = (l1 - '0'); |
dead1419 JR |
501 | return 7; |
502 | } | |
d4845d57 | 503 | |
e46fee70 | 504 | if (l1 == 'e' && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
505 | { |
506 | *mode = A_RE; | |
507 | return 2; | |
508 | } | |
e46fee70 | 509 | if (l1 == 's' && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
510 | { |
511 | *mode = A_RS; | |
512 | return 2; | |
513 | } | |
252b5132 RH |
514 | } |
515 | ||
e46fee70 | 516 | if (l0 == 'a') |
252b5132 | 517 | { |
e46fee70 | 518 | if (l1 == '0') |
d4845d57 | 519 | { |
dead1419 | 520 | if (! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
521 | { |
522 | *mode = DSP_REG_N; | |
523 | *reg = A_A0_NUM; | |
524 | return 2; | |
525 | } | |
e46fee70 | 526 | if (tolower (src[2]) == 'g' && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
527 | { |
528 | *mode = DSP_REG_N; | |
529 | *reg = A_A0G_NUM; | |
530 | return 3; | |
531 | } | |
532 | } | |
e46fee70 | 533 | if (l1 == '1') |
252b5132 | 534 | { |
dead1419 | 535 | if (! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 | 536 | { |
d4845d57 JR |
537 | *mode = DSP_REG_N; |
538 | *reg = A_A1_NUM; | |
539 | return 2; | |
540 | } | |
e46fee70 | 541 | if (tolower (src[2]) == 'g' && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
542 | { |
543 | *mode = DSP_REG_N; | |
544 | *reg = A_A1G_NUM; | |
252b5132 RH |
545 | return 3; |
546 | } | |
547 | } | |
d4845d57 | 548 | |
e46fee70 | 549 | if (l1 == 'x' && src[2] >= '0' && src[2] <= '1' |
dead1419 | 550 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
551 | { |
552 | *mode = A_REG_N; | |
e46fee70 | 553 | *reg = 4 + (l1 - '0'); |
d4845d57 JR |
554 | return 3; |
555 | } | |
e46fee70 | 556 | if (l1 == 'y' && src[2] >= '0' && src[2] <= '1' |
dead1419 | 557 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
558 | { |
559 | *mode = A_REG_N; | |
e46fee70 | 560 | *reg = 6 + (l1 - '0'); |
d4845d57 JR |
561 | return 3; |
562 | } | |
e46fee70 | 563 | if (l1 == 's' && src[2] >= '0' && src[2] <= '3' |
dead1419 | 564 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 | 565 | { |
e46fee70 | 566 | int n = l1 - '0'; |
d4845d57 JR |
567 | |
568 | *mode = A_REG_N; | |
569 | *reg = n | ((~n & 2) << 1); | |
570 | return 3; | |
571 | } | |
572 | } | |
573 | ||
e46fee70 | 574 | if (l0 == 'i' && l1 && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 | 575 | { |
e46fee70 | 576 | if (l1 == 's') |
d4845d57 JR |
577 | { |
578 | *mode = A_REG_N; | |
579 | *reg = 8; | |
252b5132 RH |
580 | return 2; |
581 | } | |
e46fee70 | 582 | if (l1 == 'x') |
d4845d57 JR |
583 | { |
584 | *mode = A_REG_N; | |
585 | *reg = 8; | |
586 | return 2; | |
587 | } | |
e46fee70 | 588 | if (l1 == 'y') |
d4845d57 JR |
589 | { |
590 | *mode = A_REG_N; | |
591 | *reg = 9; | |
592 | return 2; | |
593 | } | |
594 | } | |
595 | ||
e46fee70 | 596 | if (l0 == 'x' && l1 >= '0' && l1 <= '1' |
dead1419 | 597 | && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
598 | { |
599 | *mode = DSP_REG_N; | |
e46fee70 | 600 | *reg = A_X0_NUM + l1 - '0'; |
d4845d57 JR |
601 | return 2; |
602 | } | |
603 | ||
e46fee70 | 604 | if (l0 == 'y' && l1 >= '0' && l1 <= '1' |
dead1419 | 605 | && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
606 | { |
607 | *mode = DSP_REG_N; | |
e46fee70 | 608 | *reg = A_Y0_NUM + l1 - '0'; |
d4845d57 JR |
609 | return 2; |
610 | } | |
611 | ||
e46fee70 | 612 | if (l0 == 'm' && l1 >= '0' && l1 <= '1' |
dead1419 | 613 | && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
614 | { |
615 | *mode = DSP_REG_N; | |
e46fee70 | 616 | *reg = l1 == '0' ? A_M0_NUM : A_M1_NUM; |
d4845d57 | 617 | return 2; |
252b5132 RH |
618 | } |
619 | ||
e46fee70 HPN |
620 | if (l0 == 's' |
621 | && l1 == 's' | |
622 | && tolower (src[2]) == 'r' && ! IDENT_CHAR ((unsigned char) src[3])) | |
252b5132 RH |
623 | { |
624 | *mode = A_SSR; | |
625 | return 3; | |
626 | } | |
627 | ||
e46fee70 | 628 | if (l0 == 's' && l1 == 'p' && tolower (src[2]) == 'c' |
dead1419 | 629 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
630 | { |
631 | *mode = A_SPC; | |
632 | return 3; | |
633 | } | |
634 | ||
e46fee70 | 635 | if (l0 == 's' && l1 == 'g' && tolower (src[2]) == 'r' |
dead1419 | 636 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
637 | { |
638 | *mode = A_SGR; | |
639 | return 3; | |
640 | } | |
641 | ||
e46fee70 | 642 | if (l0 == 'd' && l1 == 's' && tolower (src[2]) == 'r' |
dead1419 | 643 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
644 | { |
645 | *mode = A_DSR; | |
646 | return 3; | |
647 | } | |
648 | ||
e46fee70 | 649 | if (l0 == 'd' && l1 == 'b' && tolower (src[2]) == 'r' |
dead1419 | 650 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
651 | { |
652 | *mode = A_DBR; | |
653 | return 3; | |
654 | } | |
655 | ||
e46fee70 | 656 | if (l0 == 's' && l1 == 'r' && ! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 RH |
657 | { |
658 | *mode = A_SR; | |
659 | return 2; | |
660 | } | |
661 | ||
e46fee70 | 662 | if (l0 == 's' && l1 == 'p' && ! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 RH |
663 | { |
664 | *mode = A_REG_N; | |
665 | *reg = 15; | |
666 | return 2; | |
667 | } | |
668 | ||
e46fee70 | 669 | if (l0 == 'p' && l1 == 'r' && ! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 RH |
670 | { |
671 | *mode = A_PR; | |
672 | return 2; | |
673 | } | |
e46fee70 | 674 | if (l0 == 'p' && l1 == 'c' && ! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 | 675 | { |
015551fc JR |
676 | /* Don't use A_DISP_PC here - that would accept stuff like 'mova pc,r0' |
677 | and use an uninitialized immediate. */ | |
678 | *mode = A_PC; | |
252b5132 RH |
679 | return 2; |
680 | } | |
e46fee70 | 681 | if (l0 == 'g' && l1 == 'b' && tolower (src[2]) == 'r' |
dead1419 | 682 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
683 | { |
684 | *mode = A_GBR; | |
685 | return 3; | |
686 | } | |
e46fee70 | 687 | if (l0 == 'v' && l1 == 'b' && tolower (src[2]) == 'r' |
dead1419 | 688 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
689 | { |
690 | *mode = A_VBR; | |
691 | return 3; | |
692 | } | |
693 | ||
e46fee70 | 694 | if (l0 == 'm' && l1 == 'a' && tolower (src[2]) == 'c' |
dead1419 | 695 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
696 | { |
697 | if (src[3] == 'l') | |
698 | { | |
699 | *mode = A_MACL; | |
700 | return 4; | |
701 | } | |
702 | if (src[3] == 'h') | |
703 | { | |
704 | *mode = A_MACH; | |
705 | return 4; | |
706 | } | |
707 | } | |
e46fee70 | 708 | if (l0 == 'm' && l1 == 'o' && tolower (src[2]) == 'd' |
dead1419 | 709 | && ! IDENT_CHAR ((unsigned char) src[4])) |
d4845d57 JR |
710 | { |
711 | *mode = A_MOD; | |
712 | return 3; | |
713 | } | |
e46fee70 | 714 | if (l0 == 'f' && l1 == 'r') |
252b5132 RH |
715 | { |
716 | if (src[2] == '1') | |
717 | { | |
718 | if (src[3] >= '0' && src[3] <= '5' | |
dead1419 | 719 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
720 | { |
721 | *mode = F_REG_N; | |
722 | *reg = 10 + src[3] - '0'; | |
723 | return 4; | |
724 | } | |
725 | } | |
726 | if (src[2] >= '0' && src[2] <= '9' | |
dead1419 | 727 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
728 | { |
729 | *mode = F_REG_N; | |
730 | *reg = (src[2] - '0'); | |
731 | return 3; | |
732 | } | |
733 | } | |
e46fee70 | 734 | if (l0 == 'd' && l1 == 'r') |
252b5132 RH |
735 | { |
736 | if (src[2] == '1') | |
737 | { | |
738 | if (src[3] >= '0' && src[3] <= '4' && ! ((src[3] - '0') & 1) | |
dead1419 | 739 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
740 | { |
741 | *mode = D_REG_N; | |
742 | *reg = 10 + src[3] - '0'; | |
743 | return 4; | |
744 | } | |
745 | } | |
746 | if (src[2] >= '0' && src[2] <= '8' && ! ((src[2] - '0') & 1) | |
dead1419 | 747 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
748 | { |
749 | *mode = D_REG_N; | |
750 | *reg = (src[2] - '0'); | |
751 | return 3; | |
752 | } | |
753 | } | |
e46fee70 | 754 | if (l0 == 'x' && l1 == 'd') |
252b5132 RH |
755 | { |
756 | if (src[2] == '1') | |
757 | { | |
758 | if (src[3] >= '0' && src[3] <= '4' && ! ((src[3] - '0') & 1) | |
dead1419 | 759 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
760 | { |
761 | *mode = X_REG_N; | |
762 | *reg = 11 + src[3] - '0'; | |
763 | return 4; | |
764 | } | |
765 | } | |
766 | if (src[2] >= '0' && src[2] <= '8' && ! ((src[2] - '0') & 1) | |
dead1419 | 767 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
768 | { |
769 | *mode = X_REG_N; | |
770 | *reg = (src[2] - '0') + 1; | |
771 | return 3; | |
772 | } | |
773 | } | |
e46fee70 | 774 | if (l0 == 'f' && l1 == 'v') |
252b5132 | 775 | { |
dead1419 | 776 | if (src[2] == '1'&& src[3] == '2' && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
777 | { |
778 | *mode = V_REG_N; | |
779 | *reg = 12; | |
780 | return 4; | |
781 | } | |
782 | if ((src[2] == '0' || src[2] == '4' || src[2] == '8') | |
dead1419 | 783 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
784 | { |
785 | *mode = V_REG_N; | |
786 | *reg = (src[2] - '0'); | |
787 | return 3; | |
788 | } | |
789 | } | |
e46fee70 HPN |
790 | if (l0 == 'f' && l1 == 'p' && tolower (src[2]) == 'u' |
791 | && tolower (src[3]) == 'l' | |
dead1419 | 792 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
793 | { |
794 | *mode = FPUL_N; | |
795 | return 4; | |
796 | } | |
797 | ||
e46fee70 HPN |
798 | if (l0 == 'f' && l1 == 'p' && tolower (src[2]) == 's' |
799 | && tolower (src[3]) == 'c' | |
800 | && tolower (src[4]) == 'r' && ! IDENT_CHAR ((unsigned char) src[5])) | |
252b5132 RH |
801 | { |
802 | *mode = FPSCR_N; | |
803 | return 5; | |
804 | } | |
805 | ||
e46fee70 HPN |
806 | if (l0 == 'x' && l1 == 'm' && tolower (src[2]) == 't' |
807 | && tolower (src[3]) == 'r' | |
808 | && tolower (src[4]) == 'x' && ! IDENT_CHAR ((unsigned char) src[5])) | |
252b5132 RH |
809 | { |
810 | *mode = XMTRX_M4; | |
811 | return 5; | |
812 | } | |
813 | ||
814 | return 0; | |
815 | } | |
816 | ||
c4aa876b NC |
817 | static symbolS * |
818 | dot () | |
252b5132 RH |
819 | { |
820 | const char *fake; | |
821 | ||
822 | /* JF: '.' is pseudo symbol with value of current location | |
823 | in current segment. */ | |
824 | fake = FAKE_LABEL_NAME; | |
825 | return symbol_new (fake, | |
826 | now_seg, | |
827 | (valueT) frag_now_fix (), | |
828 | frag_now); | |
252b5132 RH |
829 | } |
830 | ||
c4aa876b | 831 | static char * |
015551fc | 832 | parse_exp (s, op) |
252b5132 | 833 | char *s; |
015551fc | 834 | sh_operand_info *op; |
252b5132 RH |
835 | { |
836 | char *save; | |
837 | char *new; | |
838 | ||
839 | save = input_line_pointer; | |
840 | input_line_pointer = s; | |
015551fc JR |
841 | expression (&op->immediate); |
842 | if (op->immediate.X_op == O_absent) | |
252b5132 RH |
843 | as_bad (_("missing operand")); |
844 | new = input_line_pointer; | |
845 | input_line_pointer = save; | |
846 | return new; | |
847 | } | |
848 | ||
252b5132 RH |
849 | /* The many forms of operand: |
850 | ||
851 | Rn Register direct | |
852 | @Rn Register indirect | |
853 | @Rn+ Autoincrement | |
854 | @-Rn Autodecrement | |
855 | @(disp:4,Rn) | |
856 | @(disp:8,GBR) | |
857 | @(disp:8,PC) | |
858 | ||
859 | @(R0,Rn) | |
860 | @(R0,GBR) | |
861 | ||
862 | disp:8 | |
863 | disp:12 | |
864 | #imm8 | |
865 | pr, gbr, vbr, macl, mach | |
252b5132 RH |
866 | */ |
867 | ||
c4aa876b | 868 | static char * |
252b5132 RH |
869 | parse_at (src, op) |
870 | char *src; | |
871 | sh_operand_info *op; | |
872 | { | |
873 | int len; | |
874 | int mode; | |
875 | src++; | |
876 | if (src[0] == '-') | |
877 | { | |
6b31947e | 878 | /* Must be predecrement. */ |
252b5132 RH |
879 | src++; |
880 | ||
881 | len = parse_reg (src, &mode, &(op->reg)); | |
882 | if (mode != A_REG_N) | |
883 | as_bad (_("illegal register after @-")); | |
884 | ||
885 | op->type = A_DEC_N; | |
886 | src += len; | |
887 | } | |
888 | else if (src[0] == '(') | |
889 | { | |
890 | /* Could be @(disp, rn), @(disp, gbr), @(disp, pc), @(r0, gbr) or | |
891 | @(r0, rn) */ | |
892 | src++; | |
893 | len = parse_reg (src, &mode, &(op->reg)); | |
894 | if (len && mode == A_REG_N) | |
895 | { | |
896 | src += len; | |
897 | if (op->reg != 0) | |
898 | { | |
899 | as_bad (_("must be @(r0,...)")); | |
900 | } | |
901 | if (src[0] == ',') | |
902 | src++; | |
903 | /* Now can be rn or gbr */ | |
904 | len = parse_reg (src, &mode, &(op->reg)); | |
905 | if (mode == A_GBR) | |
906 | { | |
907 | op->type = A_R0_GBR; | |
908 | } | |
909 | else if (mode == A_REG_N) | |
910 | { | |
911 | op->type = A_IND_R0_REG_N; | |
912 | } | |
913 | else | |
914 | { | |
915 | as_bad (_("syntax error in @(r0,...)")); | |
916 | } | |
917 | } | |
918 | else | |
919 | { | |
920 | /* Must be an @(disp,.. thing) */ | |
015551fc | 921 | src = parse_exp (src, op); |
252b5132 RH |
922 | if (src[0] == ',') |
923 | src++; | |
924 | /* Now can be rn, gbr or pc */ | |
925 | len = parse_reg (src, &mode, &op->reg); | |
926 | if (len) | |
927 | { | |
928 | if (mode == A_REG_N) | |
929 | { | |
930 | op->type = A_DISP_REG_N; | |
931 | } | |
932 | else if (mode == A_GBR) | |
933 | { | |
934 | op->type = A_DISP_GBR; | |
935 | } | |
015551fc | 936 | else if (mode == A_PC) |
252b5132 | 937 | { |
c4aa876b NC |
938 | /* Turn a plain @(4,pc) into @(.+4,pc). */ |
939 | if (op->immediate.X_op == O_constant) | |
940 | { | |
941 | op->immediate.X_add_symbol = dot(); | |
942 | op->immediate.X_op = O_symbol; | |
943 | } | |
252b5132 RH |
944 | op->type = A_DISP_PC; |
945 | } | |
946 | else | |
947 | { | |
948 | as_bad (_("syntax error in @(disp,[Rn, gbr, pc])")); | |
949 | } | |
950 | } | |
951 | else | |
952 | { | |
953 | as_bad (_("syntax error in @(disp,[Rn, gbr, pc])")); | |
954 | } | |
955 | } | |
956 | src += len; | |
957 | if (src[0] != ')') | |
958 | as_bad (_("expecting )")); | |
959 | else | |
960 | src++; | |
961 | } | |
962 | else | |
963 | { | |
964 | src += parse_reg (src, &mode, &(op->reg)); | |
965 | if (mode != A_REG_N) | |
966 | { | |
967 | as_bad (_("illegal register after @")); | |
968 | } | |
969 | if (src[0] == '+') | |
970 | { | |
252b5132 | 971 | src++; |
d4845d57 JR |
972 | if ((src[0] == 'r' && src[1] == '8') |
973 | || (src[0] == 'i' && (src[1] == 'x' || src[1] == 's'))) | |
974 | { | |
975 | src += 2; | |
976 | op->type = A_PMOD_N; | |
977 | } | |
978 | if ((src[0] == 'r' && src[1] == '9') | |
979 | || (src[0] == 'i' && src[1] == 'y')) | |
980 | { | |
981 | src += 2; | |
982 | op->type = A_PMODY_N; | |
983 | } | |
984 | else | |
985 | op->type = A_INC_N; | |
252b5132 RH |
986 | } |
987 | else | |
988 | { | |
989 | op->type = A_IND_N; | |
990 | } | |
991 | } | |
992 | return src; | |
993 | } | |
994 | ||
995 | static void | |
996 | get_operand (ptr, op) | |
997 | char **ptr; | |
998 | sh_operand_info *op; | |
999 | { | |
1000 | char *src = *ptr; | |
1001 | int mode = -1; | |
1002 | unsigned int len; | |
1003 | ||
1004 | if (src[0] == '#') | |
1005 | { | |
1006 | src++; | |
015551fc | 1007 | *ptr = parse_exp (src, op); |
252b5132 RH |
1008 | op->type = A_IMM; |
1009 | return; | |
1010 | } | |
1011 | ||
1012 | else if (src[0] == '@') | |
1013 | { | |
1014 | *ptr = parse_at (src, op); | |
1015 | return; | |
1016 | } | |
1017 | len = parse_reg (src, &mode, &(op->reg)); | |
1018 | if (len) | |
1019 | { | |
1020 | *ptr = src + len; | |
1021 | op->type = mode; | |
1022 | return; | |
1023 | } | |
1024 | else | |
1025 | { | |
6b31947e | 1026 | /* Not a reg, the only thing left is a displacement. */ |
015551fc | 1027 | *ptr = parse_exp (src, op); |
252b5132 RH |
1028 | op->type = A_DISP_PC; |
1029 | return; | |
1030 | } | |
1031 | } | |
1032 | ||
c4aa876b | 1033 | static char * |
252b5132 RH |
1034 | get_operands (info, args, operand) |
1035 | sh_opcode_info *info; | |
1036 | char *args; | |
1037 | sh_operand_info *operand; | |
252b5132 RH |
1038 | { |
1039 | char *ptr = args; | |
1040 | if (info->arg[0]) | |
1041 | { | |
d4845d57 JR |
1042 | /* The pre-processor will eliminate whitespace in front of '@' |
1043 | after the first argument; we may be called multiple times | |
1044 | from assemble_ppi, so don't insist on finding whitespace here. */ | |
1045 | if (*ptr == ' ') | |
1046 | ptr++; | |
252b5132 RH |
1047 | |
1048 | get_operand (&ptr, operand + 0); | |
1049 | if (info->arg[1]) | |
1050 | { | |
1051 | if (*ptr == ',') | |
1052 | { | |
1053 | ptr++; | |
1054 | } | |
1055 | get_operand (&ptr, operand + 1); | |
52ccafd0 JR |
1056 | /* ??? Hack: psha/pshl have a varying operand number depending on |
1057 | the type of the first operand. We handle this by having the | |
1058 | three-operand version first and reducing the number of operands | |
1059 | parsed to two if we see that the first operand is an immediate. | |
1060 | This works because no insn with three operands has an immediate | |
1061 | as first operand. */ | |
1062 | if (info->arg[2] && operand[0].type != A_IMM) | |
252b5132 RH |
1063 | { |
1064 | if (*ptr == ',') | |
1065 | { | |
1066 | ptr++; | |
1067 | } | |
1068 | get_operand (&ptr, operand + 2); | |
1069 | } | |
1070 | else | |
1071 | { | |
1072 | operand[2].type = 0; | |
1073 | } | |
1074 | } | |
1075 | else | |
1076 | { | |
1077 | operand[1].type = 0; | |
1078 | operand[2].type = 0; | |
1079 | } | |
1080 | } | |
1081 | else | |
1082 | { | |
1083 | operand[0].type = 0; | |
1084 | operand[1].type = 0; | |
1085 | operand[2].type = 0; | |
1086 | } | |
1087 | return ptr; | |
1088 | } | |
1089 | ||
1090 | /* Passed a pointer to a list of opcodes which use different | |
1091 | addressing modes, return the opcode which matches the opcodes | |
6b31947e | 1092 | provided. */ |
252b5132 | 1093 | |
c4aa876b | 1094 | static sh_opcode_info * |
252b5132 RH |
1095 | get_specific (opcode, operands) |
1096 | sh_opcode_info *opcode; | |
1097 | sh_operand_info *operands; | |
1098 | { | |
1099 | sh_opcode_info *this_try = opcode; | |
1100 | char *name = opcode->name; | |
1101 | int n = 0; | |
c4aa876b | 1102 | |
252b5132 RH |
1103 | while (opcode->name) |
1104 | { | |
1105 | this_try = opcode++; | |
1106 | if (this_try->name != name) | |
1107 | { | |
1108 | /* We've looked so far down the table that we've run out of | |
6b31947e | 1109 | opcodes with the same name. */ |
252b5132 RH |
1110 | return 0; |
1111 | } | |
c4aa876b | 1112 | |
6b31947e | 1113 | /* Look at both operands needed by the opcodes and provided by |
252b5132 RH |
1114 | the user - since an arg test will often fail on the same arg |
1115 | again and again, we'll try and test the last failing arg the | |
6b31947e | 1116 | first on each opcode try. */ |
252b5132 RH |
1117 | for (n = 0; this_try->arg[n]; n++) |
1118 | { | |
1119 | sh_operand_info *user = operands + n; | |
1120 | sh_arg_type arg = this_try->arg[n]; | |
c4aa876b | 1121 | |
252b5132 RH |
1122 | switch (arg) |
1123 | { | |
1124 | case A_IMM: | |
1125 | case A_BDISP12: | |
1126 | case A_BDISP8: | |
1127 | case A_DISP_GBR: | |
1128 | case A_DISP_PC: | |
1129 | case A_MACH: | |
1130 | case A_PR: | |
1131 | case A_MACL: | |
1132 | if (user->type != arg) | |
1133 | goto fail; | |
1134 | break; | |
1135 | case A_R0: | |
1136 | /* opcode needs r0 */ | |
1137 | if (user->type != A_REG_N || user->reg != 0) | |
1138 | goto fail; | |
1139 | break; | |
1140 | case A_R0_GBR: | |
1141 | if (user->type != A_R0_GBR || user->reg != 0) | |
1142 | goto fail; | |
1143 | break; | |
1144 | case F_FR0: | |
1145 | if (user->type != F_REG_N || user->reg != 0) | |
1146 | goto fail; | |
1147 | break; | |
1148 | ||
1149 | case A_REG_N: | |
1150 | case A_INC_N: | |
1151 | case A_DEC_N: | |
1152 | case A_IND_N: | |
1153 | case A_IND_R0_REG_N: | |
1154 | case A_DISP_REG_N: | |
1155 | case F_REG_N: | |
1156 | case D_REG_N: | |
1157 | case X_REG_N: | |
1158 | case V_REG_N: | |
1159 | case FPUL_N: | |
1160 | case FPSCR_N: | |
d4845d57 JR |
1161 | case A_PMOD_N: |
1162 | case A_PMODY_N: | |
1163 | case DSP_REG_N: | |
252b5132 RH |
1164 | /* Opcode needs rn */ |
1165 | if (user->type != arg) | |
1166 | goto fail; | |
1167 | reg_n = user->reg; | |
1168 | break; | |
252b5132 RH |
1169 | case DX_REG_N: |
1170 | if (user->type != D_REG_N && user->type != X_REG_N) | |
1171 | goto fail; | |
1172 | reg_n = user->reg; | |
1173 | break; | |
1174 | case A_GBR: | |
1175 | case A_SR: | |
1176 | case A_VBR: | |
d4845d57 JR |
1177 | case A_DSR: |
1178 | case A_MOD: | |
1179 | case A_RE: | |
1180 | case A_RS: | |
252b5132 RH |
1181 | case A_SSR: |
1182 | case A_SPC: | |
1183 | case A_SGR: | |
1184 | case A_DBR: | |
1185 | if (user->type != arg) | |
1186 | goto fail; | |
1187 | break; | |
1188 | ||
c4aa876b | 1189 | case A_REG_B: |
252b5132 RH |
1190 | if (user->type != arg) |
1191 | goto fail; | |
1192 | reg_b = user->reg; | |
1193 | break; | |
1194 | ||
1195 | case A_REG_M: | |
1196 | case A_INC_M: | |
1197 | case A_DEC_M: | |
1198 | case A_IND_M: | |
1199 | case A_IND_R0_REG_M: | |
1200 | case A_DISP_REG_M: | |
d4845d57 | 1201 | case DSP_REG_M: |
252b5132 RH |
1202 | /* Opcode needs rn */ |
1203 | if (user->type != arg - A_REG_M + A_REG_N) | |
1204 | goto fail; | |
1205 | reg_m = user->reg; | |
1206 | break; | |
1207 | ||
d4845d57 JR |
1208 | case DSP_REG_X: |
1209 | if (user->type != DSP_REG_N) | |
1210 | goto fail; | |
1211 | switch (user->reg) | |
1212 | { | |
1213 | case A_X0_NUM: | |
1214 | reg_x = 0; | |
1215 | break; | |
1216 | case A_X1_NUM: | |
1217 | reg_x = 1; | |
1218 | break; | |
1219 | case A_A0_NUM: | |
1220 | reg_x = 2; | |
1221 | break; | |
1222 | case A_A1_NUM: | |
1223 | reg_x = 3; | |
1224 | break; | |
1225 | default: | |
1226 | goto fail; | |
1227 | } | |
1228 | break; | |
1229 | ||
1230 | case DSP_REG_Y: | |
1231 | if (user->type != DSP_REG_N) | |
1232 | goto fail; | |
1233 | switch (user->reg) | |
1234 | { | |
1235 | case A_Y0_NUM: | |
1236 | reg_y = 0; | |
1237 | break; | |
1238 | case A_Y1_NUM: | |
1239 | reg_y = 1; | |
1240 | break; | |
1241 | case A_M0_NUM: | |
1242 | reg_y = 2; | |
1243 | break; | |
1244 | case A_M1_NUM: | |
1245 | reg_y = 3; | |
1246 | break; | |
1247 | default: | |
1248 | goto fail; | |
1249 | } | |
1250 | break; | |
1251 | ||
1252 | case DSP_REG_E: | |
1253 | if (user->type != DSP_REG_N) | |
1254 | goto fail; | |
1255 | switch (user->reg) | |
1256 | { | |
1257 | case A_X0_NUM: | |
1258 | reg_efg = 0 << 10; | |
1259 | break; | |
1260 | case A_X1_NUM: | |
1261 | reg_efg = 1 << 10; | |
1262 | break; | |
1263 | case A_Y0_NUM: | |
1264 | reg_efg = 2 << 10; | |
1265 | break; | |
1266 | case A_A1_NUM: | |
1267 | reg_efg = 3 << 10; | |
1268 | break; | |
1269 | default: | |
1270 | goto fail; | |
1271 | } | |
1272 | break; | |
1273 | ||
1274 | case DSP_REG_F: | |
1275 | if (user->type != DSP_REG_N) | |
1276 | goto fail; | |
1277 | switch (user->reg) | |
1278 | { | |
1279 | case A_Y0_NUM: | |
1280 | reg_efg |= 0 << 8; | |
1281 | break; | |
1282 | case A_Y1_NUM: | |
1283 | reg_efg |= 1 << 8; | |
1284 | break; | |
1285 | case A_X0_NUM: | |
1286 | reg_efg |= 2 << 8; | |
1287 | break; | |
1288 | case A_A1_NUM: | |
1289 | reg_efg |= 3 << 8; | |
1290 | break; | |
1291 | default: | |
1292 | goto fail; | |
1293 | } | |
1294 | break; | |
1295 | ||
1296 | case DSP_REG_G: | |
1297 | if (user->type != DSP_REG_N) | |
1298 | goto fail; | |
1299 | switch (user->reg) | |
1300 | { | |
1301 | case A_M0_NUM: | |
1302 | reg_efg |= 0 << 2; | |
1303 | break; | |
1304 | case A_M1_NUM: | |
1305 | reg_efg |= 1 << 2; | |
1306 | break; | |
1307 | case A_A0_NUM: | |
1308 | reg_efg |= 2 << 2; | |
1309 | break; | |
1310 | case A_A1_NUM: | |
1311 | reg_efg |= 3 << 2; | |
1312 | break; | |
1313 | default: | |
1314 | goto fail; | |
1315 | } | |
1316 | break; | |
1317 | ||
1318 | case A_A0: | |
1319 | if (user->type != DSP_REG_N || user->reg != A_A0_NUM) | |
1320 | goto fail; | |
1321 | break; | |
1322 | case A_X0: | |
1323 | if (user->type != DSP_REG_N || user->reg != A_X0_NUM) | |
1324 | goto fail; | |
1325 | break; | |
1326 | case A_X1: | |
1327 | if (user->type != DSP_REG_N || user->reg != A_X1_NUM) | |
1328 | goto fail; | |
1329 | break; | |
1330 | case A_Y0: | |
1331 | if (user->type != DSP_REG_N || user->reg != A_Y0_NUM) | |
1332 | goto fail; | |
1333 | break; | |
1334 | case A_Y1: | |
1335 | if (user->type != DSP_REG_N || user->reg != A_Y1_NUM) | |
1336 | goto fail; | |
1337 | break; | |
1338 | ||
252b5132 RH |
1339 | case F_REG_M: |
1340 | case D_REG_M: | |
1341 | case X_REG_M: | |
1342 | case V_REG_M: | |
1343 | case FPUL_M: | |
1344 | case FPSCR_M: | |
1345 | /* Opcode needs rn */ | |
1346 | if (user->type != arg - F_REG_M + F_REG_N) | |
1347 | goto fail; | |
1348 | reg_m = user->reg; | |
1349 | break; | |
1350 | case DX_REG_M: | |
1351 | if (user->type != D_REG_N && user->type != X_REG_N) | |
1352 | goto fail; | |
1353 | reg_m = user->reg; | |
1354 | break; | |
1355 | case XMTRX_M4: | |
1356 | if (user->type != XMTRX_M4) | |
1357 | goto fail; | |
1358 | reg_m = 4; | |
1359 | break; | |
c4aa876b | 1360 | |
252b5132 RH |
1361 | default: |
1362 | printf (_("unhandled %d\n"), arg); | |
1363 | goto fail; | |
1364 | } | |
1365 | } | |
a37c8f88 JR |
1366 | if ( !(valid_arch & this_try->arch)) |
1367 | goto fail; | |
d4845d57 | 1368 | valid_arch &= this_try->arch; |
252b5132 | 1369 | return this_try; |
c4aa876b NC |
1370 | fail: |
1371 | ; | |
252b5132 RH |
1372 | } |
1373 | ||
1374 | return 0; | |
1375 | } | |
1376 | ||
1377 | int | |
1378 | check (operand, low, high) | |
1379 | expressionS *operand; | |
1380 | int low; | |
1381 | int high; | |
1382 | { | |
1383 | if (operand->X_op != O_constant | |
1384 | || operand->X_add_number < low | |
1385 | || operand->X_add_number > high) | |
1386 | { | |
1387 | as_bad (_("operand must be absolute in range %d..%d"), low, high); | |
1388 | } | |
1389 | return operand->X_add_number; | |
1390 | } | |
1391 | ||
252b5132 | 1392 | static void |
015551fc | 1393 | insert (where, how, pcrel, op) |
252b5132 RH |
1394 | char *where; |
1395 | int how; | |
1396 | int pcrel; | |
015551fc | 1397 | sh_operand_info *op; |
252b5132 RH |
1398 | { |
1399 | fix_new_exp (frag_now, | |
1400 | where - frag_now->fr_literal, | |
1401 | 2, | |
015551fc | 1402 | &op->immediate, |
252b5132 RH |
1403 | pcrel, |
1404 | how); | |
1405 | } | |
1406 | ||
1407 | static void | |
015551fc | 1408 | build_relax (opcode, op) |
252b5132 | 1409 | sh_opcode_info *opcode; |
015551fc | 1410 | sh_operand_info *op; |
252b5132 RH |
1411 | { |
1412 | int high_byte = target_big_endian ? 0 : 1; | |
1413 | char *p; | |
1414 | ||
1415 | if (opcode->arg[0] == A_BDISP8) | |
1416 | { | |
1417 | int what = (opcode->nibbles[1] & 4) ? COND_JUMP_DELAY : COND_JUMP; | |
1418 | p = frag_var (rs_machine_dependent, | |
1419 | md_relax_table[C (what, COND32)].rlx_length, | |
1420 | md_relax_table[C (what, COND8)].rlx_length, | |
1421 | C (what, 0), | |
015551fc JR |
1422 | op->immediate.X_add_symbol, |
1423 | op->immediate.X_add_number, | |
252b5132 RH |
1424 | 0); |
1425 | p[high_byte] = (opcode->nibbles[0] << 4) | (opcode->nibbles[1]); | |
1426 | } | |
1427 | else if (opcode->arg[0] == A_BDISP12) | |
1428 | { | |
1429 | p = frag_var (rs_machine_dependent, | |
1430 | md_relax_table[C (UNCOND_JUMP, UNCOND32)].rlx_length, | |
1431 | md_relax_table[C (UNCOND_JUMP, UNCOND12)].rlx_length, | |
1432 | C (UNCOND_JUMP, 0), | |
015551fc JR |
1433 | op->immediate.X_add_symbol, |
1434 | op->immediate.X_add_number, | |
252b5132 RH |
1435 | 0); |
1436 | p[high_byte] = (opcode->nibbles[0] << 4); | |
1437 | } | |
1438 | ||
1439 | } | |
1440 | ||
6b31947e | 1441 | /* Insert ldrs & ldre with fancy relocations that relaxation can recognize. */ |
d67b5d6d | 1442 | |
015551fc JR |
1443 | static char * |
1444 | insert_loop_bounds (output, operand) | |
1445 | char *output; | |
1446 | sh_operand_info *operand; | |
1447 | { | |
1448 | char *name; | |
1449 | symbolS *end_sym; | |
1450 | ||
1451 | /* Since the low byte of the opcode will be overwritten by the reloc, we | |
1452 | can just stash the high byte into both bytes and ignore endianness. */ | |
1453 | output[0] = 0x8c; | |
1454 | output[1] = 0x8c; | |
1455 | insert (output, BFD_RELOC_SH_LOOP_START, 1, operand); | |
1456 | insert (output, BFD_RELOC_SH_LOOP_END, 1, operand + 1); | |
1457 | ||
1458 | if (sh_relax) | |
1459 | { | |
1460 | static int count = 0; | |
1461 | ||
1462 | /* If the last loop insn is a two-byte-insn, it is in danger of being | |
1463 | swapped with the insn after it. To prevent this, create a new | |
1464 | symbol - complete with SH_LABEL reloc - after the last loop insn. | |
1465 | If the last loop insn is four bytes long, the symbol will be | |
1466 | right in the middle, but four byte insns are not swapped anyways. */ | |
1467 | /* A REPEAT takes 6 bytes. The SH has a 32 bit address space. | |
1468 | Hence a 9 digit number should be enough to count all REPEATs. */ | |
1469 | name = alloca (11); | |
1470 | sprintf (name, "_R%x", count++ & 0x3fffffff); | |
c4aa876b | 1471 | end_sym = symbol_new (name, undefined_section, 0, &zero_address_frag); |
015551fc JR |
1472 | /* Make this a local symbol. */ |
1473 | #ifdef OBJ_COFF | |
1474 | SF_SET_LOCAL (end_sym); | |
1475 | #endif /* OBJ_COFF */ | |
1476 | symbol_table_insert (end_sym); | |
1477 | end_sym->sy_value = operand[1].immediate; | |
1478 | end_sym->sy_value.X_add_number += 2; | |
1479 | fix_new (frag_now, frag_now_fix (), 2, end_sym, 0, 1, BFD_RELOC_SH_LABEL); | |
1480 | } | |
1481 | ||
1482 | output = frag_more (2); | |
1483 | output[0] = 0x8e; | |
1484 | output[1] = 0x8e; | |
1485 | insert (output, BFD_RELOC_SH_LOOP_START, 1, operand); | |
1486 | insert (output, BFD_RELOC_SH_LOOP_END, 1, operand + 1); | |
1487 | ||
1488 | return frag_more (2); | |
1489 | } | |
1490 | ||
d67b5d6d | 1491 | /* Now we know what sort of opcodes it is, let's build the bytes. */ |
6b31947e | 1492 | |
0d10e182 | 1493 | static unsigned int |
252b5132 RH |
1494 | build_Mytes (opcode, operand) |
1495 | sh_opcode_info *opcode; | |
1496 | sh_operand_info *operand; | |
1497 | ||
1498 | { | |
1499 | int index; | |
1500 | char nbuf[4]; | |
1501 | char *output = frag_more (2); | |
0d10e182 | 1502 | unsigned int size = 2; |
252b5132 RH |
1503 | int low_byte = target_big_endian ? 1 : 0; |
1504 | nbuf[0] = 0; | |
1505 | nbuf[1] = 0; | |
1506 | nbuf[2] = 0; | |
1507 | nbuf[3] = 0; | |
1508 | ||
1509 | for (index = 0; index < 4; index++) | |
1510 | { | |
1511 | sh_nibble_type i = opcode->nibbles[index]; | |
1512 | if (i < 16) | |
1513 | { | |
1514 | nbuf[index] = i; | |
1515 | } | |
1516 | else | |
1517 | { | |
1518 | switch (i) | |
1519 | { | |
1520 | case REG_N: | |
1521 | nbuf[index] = reg_n; | |
1522 | break; | |
1523 | case REG_M: | |
1524 | nbuf[index] = reg_m; | |
1525 | break; | |
d4845d57 JR |
1526 | case SDT_REG_N: |
1527 | if (reg_n < 2 || reg_n > 5) | |
1528 | as_bad (_("Invalid register: 'r%d'"), reg_n); | |
1529 | nbuf[index] = (reg_n & 3) | 4; | |
1530 | break; | |
252b5132 RH |
1531 | case REG_NM: |
1532 | nbuf[index] = reg_n | (reg_m >> 2); | |
1533 | break; | |
c4aa876b | 1534 | case REG_B: |
252b5132 RH |
1535 | nbuf[index] = reg_b | 0x08; |
1536 | break; | |
015551fc JR |
1537 | case IMM0_4BY4: |
1538 | insert (output + low_byte, BFD_RELOC_SH_IMM4BY4, 0, operand); | |
1539 | break; | |
1540 | case IMM0_4BY2: | |
1541 | insert (output + low_byte, BFD_RELOC_SH_IMM4BY2, 0, operand); | |
1542 | break; | |
1543 | case IMM0_4: | |
1544 | insert (output + low_byte, BFD_RELOC_SH_IMM4, 0, operand); | |
1545 | break; | |
1546 | case IMM1_4BY4: | |
1547 | insert (output + low_byte, BFD_RELOC_SH_IMM4BY4, 0, operand + 1); | |
1548 | break; | |
1549 | case IMM1_4BY2: | |
1550 | insert (output + low_byte, BFD_RELOC_SH_IMM4BY2, 0, operand + 1); | |
252b5132 | 1551 | break; |
015551fc JR |
1552 | case IMM1_4: |
1553 | insert (output + low_byte, BFD_RELOC_SH_IMM4, 0, operand + 1); | |
252b5132 | 1554 | break; |
015551fc JR |
1555 | case IMM0_8BY4: |
1556 | insert (output + low_byte, BFD_RELOC_SH_IMM8BY4, 0, operand); | |
252b5132 | 1557 | break; |
015551fc JR |
1558 | case IMM0_8BY2: |
1559 | insert (output + low_byte, BFD_RELOC_SH_IMM8BY2, 0, operand); | |
252b5132 | 1560 | break; |
015551fc JR |
1561 | case IMM0_8: |
1562 | insert (output + low_byte, BFD_RELOC_SH_IMM8, 0, operand); | |
252b5132 | 1563 | break; |
015551fc JR |
1564 | case IMM1_8BY4: |
1565 | insert (output + low_byte, BFD_RELOC_SH_IMM8BY4, 0, operand + 1); | |
252b5132 | 1566 | break; |
015551fc JR |
1567 | case IMM1_8BY2: |
1568 | insert (output + low_byte, BFD_RELOC_SH_IMM8BY2, 0, operand + 1); | |
1569 | break; | |
1570 | case IMM1_8: | |
1571 | insert (output + low_byte, BFD_RELOC_SH_IMM8, 0, operand + 1); | |
252b5132 RH |
1572 | break; |
1573 | case PCRELIMM_8BY4: | |
015551fc | 1574 | insert (output, BFD_RELOC_SH_PCRELIMM8BY4, 1, operand); |
252b5132 RH |
1575 | break; |
1576 | case PCRELIMM_8BY2: | |
015551fc JR |
1577 | insert (output, BFD_RELOC_SH_PCRELIMM8BY2, 1, operand); |
1578 | break; | |
1579 | case REPEAT: | |
1580 | output = insert_loop_bounds (output, operand); | |
1581 | nbuf[index] = opcode->nibbles[3]; | |
1582 | operand += 2; | |
252b5132 RH |
1583 | break; |
1584 | default: | |
1585 | printf (_("failed for %d\n"), i); | |
1586 | } | |
1587 | } | |
1588 | } | |
c4aa876b NC |
1589 | if (!target_big_endian) |
1590 | { | |
1591 | output[1] = (nbuf[0] << 4) | (nbuf[1]); | |
1592 | output[0] = (nbuf[2] << 4) | (nbuf[3]); | |
1593 | } | |
1594 | else | |
1595 | { | |
1596 | output[0] = (nbuf[0] << 4) | (nbuf[1]); | |
1597 | output[1] = (nbuf[2] << 4) | (nbuf[3]); | |
1598 | } | |
0d10e182 | 1599 | return size; |
252b5132 RH |
1600 | } |
1601 | ||
d4845d57 JR |
1602 | /* Find an opcode at the start of *STR_P in the hash table, and set |
1603 | *STR_P to the first character after the last one read. */ | |
252b5132 | 1604 | |
d4845d57 JR |
1605 | static sh_opcode_info * |
1606 | find_cooked_opcode (str_p) | |
1607 | char **str_p; | |
252b5132 | 1608 | { |
d4845d57 | 1609 | char *str = *str_p; |
252b5132 RH |
1610 | unsigned char *op_start; |
1611 | unsigned char *op_end; | |
252b5132 RH |
1612 | char name[20]; |
1613 | int nlen = 0; | |
c4aa876b | 1614 | |
6b31947e | 1615 | /* Drop leading whitespace. */ |
252b5132 RH |
1616 | while (*str == ' ') |
1617 | str++; | |
1618 | ||
d4845d57 JR |
1619 | /* Find the op code end. |
1620 | The pre-processor will eliminate whitespace in front of | |
1621 | any '@' after the first argument; we may be called from | |
1622 | assemble_ppi, so the opcode might be terminated by an '@'. */ | |
252b5132 RH |
1623 | for (op_start = op_end = (unsigned char *) (str); |
1624 | *op_end | |
1625 | && nlen < 20 | |
d4845d57 | 1626 | && !is_end_of_line[*op_end] && *op_end != ' ' && *op_end != '@'; |
252b5132 RH |
1627 | op_end++) |
1628 | { | |
1629 | unsigned char c = op_start[nlen]; | |
1630 | ||
1631 | /* The machine independent code will convert CMP/EQ into cmp/EQ | |
d4845d57 JR |
1632 | because it thinks the '/' is the end of the symbol. Moreover, |
1633 | all but the first sub-insn is a parallel processing insn won't | |
1634 | be capitailzed. Instead of hacking up the machine independent | |
1635 | code, we just deal with it here. */ | |
252b5132 RH |
1636 | c = isupper (c) ? tolower (c) : c; |
1637 | name[nlen] = c; | |
1638 | nlen++; | |
1639 | } | |
c4aa876b | 1640 | |
252b5132 | 1641 | name[nlen] = 0; |
d4845d57 | 1642 | *str_p = op_end; |
252b5132 RH |
1643 | |
1644 | if (nlen == 0) | |
6b31947e | 1645 | as_bad (_("can't find opcode ")); |
252b5132 | 1646 | |
d4845d57 JR |
1647 | return (sh_opcode_info *) hash_find (opcode_hash_control, name); |
1648 | } | |
1649 | ||
1650 | /* Assemble a parallel processing insn. */ | |
1651 | #define DDT_BASE 0xf000 /* Base value for double data transfer insns */ | |
6b31947e | 1652 | |
0d10e182 | 1653 | static unsigned int |
d4845d57 JR |
1654 | assemble_ppi (op_end, opcode) |
1655 | char *op_end; | |
1656 | sh_opcode_info *opcode; | |
1657 | { | |
1658 | int movx = 0; | |
1659 | int movy = 0; | |
1660 | int cond = 0; | |
1661 | int field_b = 0; | |
1662 | char *output; | |
1663 | int move_code; | |
0d10e182 | 1664 | unsigned int size; |
d4845d57 JR |
1665 | |
1666 | /* Some insn ignore one or more register fields, e.g. psts machl,a0. | |
1667 | Make sure we encode a defined insn pattern. */ | |
1668 | reg_x = 0; | |
1669 | reg_y = 0; | |
1670 | ||
1671 | for (;;) | |
1672 | { | |
1673 | sh_operand_info operand[3]; | |
1674 | ||
1675 | if (opcode->arg[0] != A_END) | |
1676 | op_end = get_operands (opcode, op_end, operand); | |
1677 | opcode = get_specific (opcode, operand); | |
1678 | if (opcode == 0) | |
1679 | { | |
6b31947e | 1680 | /* Couldn't find an opcode which matched the operands. */ |
d4845d57 | 1681 | char *where = frag_more (2); |
0d10e182 | 1682 | size = 2; |
d4845d57 JR |
1683 | |
1684 | where[0] = 0x0; | |
1685 | where[1] = 0x0; | |
1686 | as_bad (_("invalid operands for opcode")); | |
0d10e182 | 1687 | return size; |
d4845d57 | 1688 | } |
c4aa876b | 1689 | |
d4845d57 JR |
1690 | if (opcode->nibbles[0] != PPI) |
1691 | as_bad (_("insn can't be combined with parallel processing insn")); | |
1692 | ||
1693 | switch (opcode->nibbles[1]) | |
1694 | { | |
1695 | ||
1696 | case NOPX: | |
1697 | if (movx) | |
1698 | as_bad (_("multiple movx specifications")); | |
1699 | movx = DDT_BASE; | |
1700 | break; | |
1701 | case NOPY: | |
1702 | if (movy) | |
1703 | as_bad (_("multiple movy specifications")); | |
1704 | movy = DDT_BASE; | |
1705 | break; | |
1706 | ||
1707 | case MOVX: | |
1708 | if (movx) | |
1709 | as_bad (_("multiple movx specifications")); | |
1710 | if (reg_n < 4 || reg_n > 5) | |
1711 | as_bad (_("invalid movx address register")); | |
1712 | if (opcode->nibbles[2] & 8) | |
1713 | { | |
1714 | if (reg_m == A_A1_NUM) | |
1715 | movx = 1 << 7; | |
1716 | else if (reg_m != A_A0_NUM) | |
1717 | as_bad (_("invalid movx dsp register")); | |
1718 | } | |
1719 | else | |
1720 | { | |
1721 | if (reg_x > 1) | |
1722 | as_bad (_("invalid movx dsp register")); | |
1723 | movx = reg_x << 7; | |
1724 | } | |
1725 | movx += ((reg_n - 4) << 9) + (opcode->nibbles[2] << 2) + DDT_BASE; | |
1726 | break; | |
1727 | ||
1728 | case MOVY: | |
1729 | if (movy) | |
1730 | as_bad (_("multiple movy specifications")); | |
1731 | if (opcode->nibbles[2] & 8) | |
1732 | { | |
1733 | /* Bit 3 in nibbles[2] is intended for bit 4 of the opcode, | |
1734 | so add 8 more. */ | |
1735 | movy = 8; | |
1736 | if (reg_m == A_A1_NUM) | |
1737 | movy += 1 << 6; | |
1738 | else if (reg_m != A_A0_NUM) | |
1739 | as_bad (_("invalid movy dsp register")); | |
1740 | } | |
1741 | else | |
1742 | { | |
1743 | if (reg_y > 1) | |
1744 | as_bad (_("invalid movy dsp register")); | |
1745 | movy = reg_y << 6; | |
1746 | } | |
1747 | if (reg_n < 6 || reg_n > 7) | |
1748 | as_bad (_("invalid movy address register")); | |
1749 | movy += ((reg_n - 6) << 8) + opcode->nibbles[2] + DDT_BASE; | |
1750 | break; | |
1751 | ||
1752 | case PSH: | |
015551fc | 1753 | if (operand[0].immediate.X_op != O_constant) |
d4845d57 JR |
1754 | as_bad (_("dsp immediate shift value not constant")); |
1755 | field_b = ((opcode->nibbles[2] << 12) | |
015551fc | 1756 | | (operand[0].immediate.X_add_number & 127) << 4 |
d4845d57 JR |
1757 | | reg_n); |
1758 | break; | |
1759 | case PPI3: | |
1760 | if (field_b) | |
1761 | as_bad (_("multiple parallel processing specifications")); | |
1762 | field_b = ((opcode->nibbles[2] << 12) + (opcode->nibbles[3] << 8) | |
1763 | + (reg_x << 6) + (reg_y << 4) + reg_n); | |
1764 | break; | |
1765 | case PDC: | |
1766 | if (cond) | |
1767 | as_bad (_("multiple condition specifications")); | |
1768 | cond = opcode->nibbles[2] << 8; | |
1769 | if (*op_end) | |
1770 | goto skip_cond_check; | |
1771 | break; | |
1772 | case PPIC: | |
1773 | if (field_b) | |
1774 | as_bad (_("multiple parallel processing specifications")); | |
1775 | field_b = ((opcode->nibbles[2] << 12) + (opcode->nibbles[3] << 8) | |
1776 | + cond + (reg_x << 6) + (reg_y << 4) + reg_n); | |
1777 | cond = 0; | |
1778 | break; | |
1779 | case PMUL: | |
1780 | if (field_b) | |
1781 | { | |
1782 | if ((field_b & 0xef00) != 0xa100) | |
1783 | as_bad (_("insn cannot be combined with pmuls")); | |
1784 | field_b -= 0x8100; | |
1785 | switch (field_b & 0xf) | |
1786 | { | |
1787 | case A_X0_NUM: | |
1788 | field_b += 0 - A_X0_NUM; | |
1789 | break; | |
1790 | case A_Y0_NUM: | |
1791 | field_b += 1 - A_Y0_NUM; | |
1792 | break; | |
1793 | case A_A0_NUM: | |
1794 | field_b += 2 - A_A0_NUM; | |
1795 | break; | |
1796 | case A_A1_NUM: | |
1797 | field_b += 3 - A_A1_NUM; | |
1798 | break; | |
1799 | default: | |
1800 | as_bad (_("bad padd / psub pmuls output operand")); | |
1801 | } | |
1802 | } | |
1803 | field_b += 0x4000 + reg_efg; | |
1804 | break; | |
1805 | default: | |
1806 | abort (); | |
1807 | } | |
1808 | if (cond) | |
1809 | { | |
1810 | as_bad (_("condition not followed by conditionalizable insn")); | |
1811 | cond = 0; | |
1812 | } | |
1813 | if (! *op_end) | |
1814 | break; | |
1815 | skip_cond_check: | |
1816 | opcode = find_cooked_opcode (&op_end); | |
1817 | if (opcode == NULL) | |
1818 | { | |
1819 | (as_bad | |
1820 | (_("unrecognized characters at end of parallel processing insn"))); | |
1821 | break; | |
1822 | } | |
1823 | } | |
1824 | ||
1825 | move_code = movx | movy; | |
1826 | if (field_b) | |
1827 | { | |
1828 | /* Parallel processing insn. */ | |
1829 | unsigned long ppi_code = (movx | movy | 0xf800) << 16 | field_b; | |
1830 | ||
1831 | output = frag_more (4); | |
0d10e182 | 1832 | size = 4; |
d4845d57 JR |
1833 | if (! target_big_endian) |
1834 | { | |
1835 | output[3] = ppi_code >> 8; | |
1836 | output[2] = ppi_code; | |
1837 | } | |
1838 | else | |
1839 | { | |
1840 | output[2] = ppi_code >> 8; | |
1841 | output[3] = ppi_code; | |
1842 | } | |
1843 | move_code |= 0xf800; | |
1844 | } | |
1845 | else | |
0d10e182 JL |
1846 | { |
1847 | /* Just a double data transfer. */ | |
1848 | output = frag_more (2); | |
1849 | size = 2; | |
1850 | } | |
d4845d57 JR |
1851 | if (! target_big_endian) |
1852 | { | |
1853 | output[1] = move_code >> 8; | |
1854 | output[0] = move_code; | |
1855 | } | |
1856 | else | |
1857 | { | |
1858 | output[0] = move_code >> 8; | |
1859 | output[1] = move_code; | |
1860 | } | |
0d10e182 | 1861 | return size; |
d4845d57 JR |
1862 | } |
1863 | ||
1864 | /* This is the guts of the machine-dependent assembler. STR points to a | |
1865 | machine dependent instruction. This function is supposed to emit | |
6b31947e | 1866 | the frags/bytes it assembles to. */ |
d4845d57 JR |
1867 | |
1868 | void | |
1869 | md_assemble (str) | |
1870 | char *str; | |
1871 | { | |
1872 | unsigned char *op_end; | |
1873 | sh_operand_info operand[3]; | |
1874 | sh_opcode_info *opcode; | |
dda5ecfc | 1875 | unsigned int size = 0; |
d4845d57 JR |
1876 | |
1877 | opcode = find_cooked_opcode (&str); | |
1878 | op_end = str; | |
252b5132 RH |
1879 | |
1880 | if (opcode == NULL) | |
1881 | { | |
1882 | as_bad (_("unknown opcode")); | |
1883 | return; | |
1884 | } | |
1885 | ||
1886 | if (sh_relax | |
1887 | && ! seg_info (now_seg)->tc_segment_info_data.in_code) | |
1888 | { | |
1889 | /* Output a CODE reloc to tell the linker that the following | |
1890 | bytes are instructions, not data. */ | |
1891 | fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0, | |
1892 | BFD_RELOC_SH_CODE); | |
1893 | seg_info (now_seg)->tc_segment_info_data.in_code = 1; | |
1894 | } | |
1895 | ||
d4845d57 JR |
1896 | if (opcode->nibbles[0] == PPI) |
1897 | { | |
0d10e182 | 1898 | size = assemble_ppi (op_end, opcode); |
252b5132 RH |
1899 | } |
1900 | else | |
1901 | { | |
0d10e182 JL |
1902 | if (opcode->arg[0] == A_BDISP12 |
1903 | || opcode->arg[0] == A_BDISP8) | |
252b5132 | 1904 | { |
0d10e182 JL |
1905 | parse_exp (op_end + 1, &operand[0]); |
1906 | build_relax (opcode, &operand[0]); | |
5fc44b2d JR |
1907 | } |
1908 | else | |
1909 | { | |
0d10e182 JL |
1910 | if (opcode->arg[0] == A_END) |
1911 | { | |
1912 | /* Ignore trailing whitespace. If there is any, it has already | |
1913 | been compressed to a single space. */ | |
1914 | if (*op_end == ' ') | |
1915 | op_end++; | |
1916 | } | |
1917 | else | |
1918 | { | |
1919 | op_end = get_operands (opcode, op_end, operand); | |
1920 | } | |
1921 | opcode = get_specific (opcode, operand); | |
252b5132 | 1922 | |
0d10e182 JL |
1923 | if (opcode == 0) |
1924 | { | |
1925 | /* Couldn't find an opcode which matched the operands. */ | |
1926 | char *where = frag_more (2); | |
1927 | size = 2; | |
252b5132 | 1928 | |
0d10e182 JL |
1929 | where[0] = 0x0; |
1930 | where[1] = 0x0; | |
1931 | as_bad (_("invalid operands for opcode")); | |
1932 | } | |
1933 | else | |
1934 | { | |
1935 | if (*op_end) | |
1936 | as_bad (_("excess operands: '%s'"), op_end); | |
1937 | ||
1938 | size = build_Mytes (opcode, operand); | |
1939 | } | |
252b5132 | 1940 | } |
0d10e182 | 1941 | } |
252b5132 | 1942 | |
4dc7ead9 | 1943 | dwarf2_emit_insn (size); |
252b5132 RH |
1944 | } |
1945 | ||
1946 | /* This routine is called each time a label definition is seen. It | |
1947 | emits a BFD_RELOC_SH_LABEL reloc if necessary. */ | |
1948 | ||
1949 | void | |
1950 | sh_frob_label () | |
1951 | { | |
1952 | static fragS *last_label_frag; | |
1953 | static int last_label_offset; | |
1954 | ||
1955 | if (sh_relax | |
1956 | && seg_info (now_seg)->tc_segment_info_data.in_code) | |
1957 | { | |
1958 | int offset; | |
1959 | ||
1960 | offset = frag_now_fix (); | |
1961 | if (frag_now != last_label_frag | |
1962 | || offset != last_label_offset) | |
c4aa876b | 1963 | { |
252b5132 RH |
1964 | fix_new (frag_now, offset, 2, &abs_symbol, 0, 0, BFD_RELOC_SH_LABEL); |
1965 | last_label_frag = frag_now; | |
1966 | last_label_offset = offset; | |
1967 | } | |
1968 | } | |
1969 | } | |
1970 | ||
1971 | /* This routine is called when the assembler is about to output some | |
1972 | data. It emits a BFD_RELOC_SH_DATA reloc if necessary. */ | |
1973 | ||
1974 | void | |
1975 | sh_flush_pending_output () | |
1976 | { | |
1977 | if (sh_relax | |
1978 | && seg_info (now_seg)->tc_segment_info_data.in_code) | |
1979 | { | |
1980 | fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0, | |
1981 | BFD_RELOC_SH_DATA); | |
1982 | seg_info (now_seg)->tc_segment_info_data.in_code = 0; | |
1983 | } | |
1984 | } | |
1985 | ||
1986 | symbolS * | |
c0fecd35 AM |
1987 | md_undefined_symbol (name) |
1988 | char *name; | |
252b5132 | 1989 | { |
a1cc9221 AO |
1990 | #ifdef OBJ_ELF |
1991 | /* Under ELF we need to default _GLOBAL_OFFSET_TABLE. Otherwise we | |
1992 | have no need to default values of symbols. */ | |
1993 | if (strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0) | |
1994 | { | |
1995 | if (!GOT_symbol) | |
1996 | { | |
1997 | if (symbol_find (name)) | |
1998 | as_bad ("GOT already in the symbol table"); | |
81d4177b | 1999 | |
a1cc9221 AO |
2000 | GOT_symbol = symbol_new (name, undefined_section, |
2001 | (valueT)0, & zero_address_frag); | |
2002 | } | |
81d4177b | 2003 | |
a1cc9221 AO |
2004 | return GOT_symbol; |
2005 | } | |
2006 | #endif /* OBJ_ELF */ | |
81d4177b | 2007 | |
252b5132 RH |
2008 | return 0; |
2009 | } | |
2010 | ||
2011 | #ifdef OBJ_COFF | |
056350c6 | 2012 | #ifndef BFD_ASSEMBLER |
252b5132 RH |
2013 | |
2014 | void | |
c0fecd35 AM |
2015 | tc_crawl_symbol_chain (headers) |
2016 | object_headers *headers; | |
252b5132 RH |
2017 | { |
2018 | printf (_("call to tc_crawl_symbol_chain \n")); | |
2019 | } | |
2020 | ||
2021 | void | |
c0fecd35 AM |
2022 | tc_headers_hook (headers) |
2023 | object_headers *headers; | |
252b5132 RH |
2024 | { |
2025 | printf (_("call to tc_headers_hook \n")); | |
2026 | } | |
2027 | ||
056350c6 | 2028 | #endif |
252b5132 RH |
2029 | #endif |
2030 | ||
6b31947e NC |
2031 | /* Various routines to kill one day. */ |
2032 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
2033 | #define MAX_LITTLENUMS 6 |
2034 | ||
6b31947e NC |
2035 | /* Turn a string in input_line_pointer into a floating point constant |
2036 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
2037 | of LITTLENUMS emitted is stored in *SIZEP . An error message is | |
2038 | returned, or NULL on OK. */ | |
2039 | ||
252b5132 RH |
2040 | char * |
2041 | md_atof (type, litP, sizeP) | |
2042 | int type; | |
2043 | char *litP; | |
2044 | int *sizeP; | |
2045 | { | |
2046 | int prec; | |
2047 | LITTLENUM_TYPE words[4]; | |
2048 | char *t; | |
2049 | int i; | |
2050 | ||
2051 | switch (type) | |
2052 | { | |
2053 | case 'f': | |
2054 | prec = 2; | |
2055 | break; | |
2056 | ||
2057 | case 'd': | |
2058 | prec = 4; | |
2059 | break; | |
2060 | ||
2061 | default: | |
2062 | *sizeP = 0; | |
2063 | return _("bad call to md_atof"); | |
2064 | } | |
2065 | ||
2066 | t = atof_ieee (input_line_pointer, type, words); | |
2067 | if (t) | |
2068 | input_line_pointer = t; | |
2069 | ||
2070 | *sizeP = prec * 2; | |
2071 | ||
2072 | if (! target_big_endian) | |
2073 | { | |
2074 | for (i = prec - 1; i >= 0; i--) | |
2075 | { | |
2076 | md_number_to_chars (litP, (valueT) words[i], 2); | |
2077 | litP += 2; | |
2078 | } | |
2079 | } | |
2080 | else | |
2081 | { | |
2082 | for (i = 0; i < prec; i++) | |
2083 | { | |
2084 | md_number_to_chars (litP, (valueT) words[i], 2); | |
2085 | litP += 2; | |
2086 | } | |
2087 | } | |
c4aa876b | 2088 | |
252b5132 RH |
2089 | return NULL; |
2090 | } | |
2091 | ||
2092 | /* Handle the .uses pseudo-op. This pseudo-op is used just before a | |
2093 | call instruction. It refers to a label of the instruction which | |
2094 | loads the register which the call uses. We use it to generate a | |
2095 | special reloc for the linker. */ | |
2096 | ||
2097 | static void | |
2098 | s_uses (ignore) | |
43841e91 | 2099 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2100 | { |
2101 | expressionS ex; | |
2102 | ||
2103 | if (! sh_relax) | |
2104 | as_warn (_(".uses pseudo-op seen when not relaxing")); | |
2105 | ||
2106 | expression (&ex); | |
2107 | ||
2108 | if (ex.X_op != O_symbol || ex.X_add_number != 0) | |
2109 | { | |
2110 | as_bad (_("bad .uses format")); | |
2111 | ignore_rest_of_line (); | |
2112 | return; | |
2113 | } | |
2114 | ||
2115 | fix_new_exp (frag_now, frag_now_fix (), 2, &ex, 1, BFD_RELOC_SH_USES); | |
2116 | ||
2117 | demand_empty_rest_of_line (); | |
2118 | } | |
2119 | \f | |
2120 | CONST char *md_shortopts = ""; | |
6b31947e NC |
2121 | struct option md_longopts[] = |
2122 | { | |
252b5132 RH |
2123 | #define OPTION_RELAX (OPTION_MD_BASE) |
2124 | #define OPTION_LITTLE (OPTION_MD_BASE + 1) | |
2125 | #define OPTION_SMALL (OPTION_LITTLE + 1) | |
d4845d57 | 2126 | #define OPTION_DSP (OPTION_SMALL + 1) |
252b5132 RH |
2127 | |
2128 | {"relax", no_argument, NULL, OPTION_RELAX}, | |
2129 | {"little", no_argument, NULL, OPTION_LITTLE}, | |
2130 | {"small", no_argument, NULL, OPTION_SMALL}, | |
d4845d57 | 2131 | {"dsp", no_argument, NULL, OPTION_DSP}, |
252b5132 RH |
2132 | {NULL, no_argument, NULL, 0} |
2133 | }; | |
c4aa876b | 2134 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
2135 | |
2136 | int | |
2137 | md_parse_option (c, arg) | |
2138 | int c; | |
43841e91 | 2139 | char *arg ATTRIBUTE_UNUSED; |
252b5132 RH |
2140 | { |
2141 | switch (c) | |
2142 | { | |
2143 | case OPTION_RELAX: | |
2144 | sh_relax = 1; | |
2145 | break; | |
2146 | ||
2147 | case OPTION_LITTLE: | |
2148 | shl = 1; | |
2149 | target_big_endian = 0; | |
2150 | break; | |
2151 | ||
2152 | case OPTION_SMALL: | |
2153 | sh_small = 1; | |
2154 | break; | |
2155 | ||
d4845d57 JR |
2156 | case OPTION_DSP: |
2157 | sh_dsp = 1; | |
2158 | break; | |
2159 | ||
252b5132 RH |
2160 | default: |
2161 | return 0; | |
2162 | } | |
2163 | ||
2164 | return 1; | |
2165 | } | |
2166 | ||
2167 | void | |
2168 | md_show_usage (stream) | |
2169 | FILE *stream; | |
2170 | { | |
c4aa876b | 2171 | fprintf (stream, _("\ |
252b5132 RH |
2172 | SH options:\n\ |
2173 | -little generate little endian code\n\ | |
2174 | -relax alter jump instructions for long displacements\n\ | |
5b8274e3 | 2175 | -small align sections to 4 byte boundaries, not 16\n\ |
182e89d3 | 2176 | -dsp enable sh-dsp insns, and disable sh3e / sh4 insns.\n")); |
252b5132 RH |
2177 | } |
2178 | \f | |
2179 | void | |
2180 | tc_Nout_fix_to_chars () | |
2181 | { | |
2182 | printf (_("call to tc_Nout_fix_to_chars \n")); | |
2183 | abort (); | |
2184 | } | |
2185 | ||
2186 | /* This struct is used to pass arguments to sh_count_relocs through | |
2187 | bfd_map_over_sections. */ | |
2188 | ||
2189 | struct sh_count_relocs | |
2190 | { | |
2191 | /* Symbol we are looking for. */ | |
2192 | symbolS *sym; | |
2193 | /* Count of relocs found. */ | |
2194 | int count; | |
2195 | }; | |
2196 | ||
2197 | /* Count the number of fixups in a section which refer to a particular | |
2198 | symbol. When using BFD_ASSEMBLER, this is called via | |
2199 | bfd_map_over_sections. */ | |
2200 | ||
252b5132 RH |
2201 | static void |
2202 | sh_count_relocs (abfd, sec, data) | |
43841e91 | 2203 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2204 | segT sec; |
2205 | PTR data; | |
2206 | { | |
2207 | struct sh_count_relocs *info = (struct sh_count_relocs *) data; | |
2208 | segment_info_type *seginfo; | |
2209 | symbolS *sym; | |
2210 | fixS *fix; | |
2211 | ||
2212 | seginfo = seg_info (sec); | |
2213 | if (seginfo == NULL) | |
2214 | return; | |
2215 | ||
2216 | sym = info->sym; | |
2217 | for (fix = seginfo->fix_root; fix != NULL; fix = fix->fx_next) | |
2218 | { | |
2219 | if (fix->fx_addsy == sym) | |
2220 | { | |
2221 | ++info->count; | |
2222 | fix->fx_tcbit = 1; | |
2223 | } | |
2224 | } | |
2225 | } | |
2226 | ||
2227 | /* Handle the count relocs for a particular section. When using | |
2228 | BFD_ASSEMBLER, this is called via bfd_map_over_sections. */ | |
2229 | ||
252b5132 RH |
2230 | static void |
2231 | sh_frob_section (abfd, sec, ignore) | |
43841e91 | 2232 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 2233 | segT sec; |
43841e91 | 2234 | PTR ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2235 | { |
2236 | segment_info_type *seginfo; | |
2237 | fixS *fix; | |
2238 | ||
2239 | seginfo = seg_info (sec); | |
2240 | if (seginfo == NULL) | |
2241 | return; | |
2242 | ||
2243 | for (fix = seginfo->fix_root; fix != NULL; fix = fix->fx_next) | |
2244 | { | |
2245 | symbolS *sym; | |
2246 | bfd_vma val; | |
2247 | fixS *fscan; | |
2248 | struct sh_count_relocs info; | |
2249 | ||
2250 | if (fix->fx_r_type != BFD_RELOC_SH_USES) | |
2251 | continue; | |
2252 | ||
2253 | /* The BFD_RELOC_SH_USES reloc should refer to a defined local | |
2254 | symbol in the same section. */ | |
2255 | sym = fix->fx_addsy; | |
2256 | if (sym == NULL | |
2257 | || fix->fx_subsy != NULL | |
2258 | || fix->fx_addnumber != 0 | |
2259 | || S_GET_SEGMENT (sym) != sec | |
2260 | #if ! defined (BFD_ASSEMBLER) && defined (OBJ_COFF) | |
2261 | || S_GET_STORAGE_CLASS (sym) == C_EXT | |
2262 | #endif | |
2263 | || S_IS_EXTERNAL (sym)) | |
2264 | { | |
2265 | as_warn_where (fix->fx_file, fix->fx_line, | |
2266 | _(".uses does not refer to a local symbol in the same section")); | |
2267 | continue; | |
2268 | } | |
2269 | ||
2270 | /* Look through the fixups again, this time looking for one | |
2271 | at the same location as sym. */ | |
2272 | val = S_GET_VALUE (sym); | |
2273 | for (fscan = seginfo->fix_root; | |
2274 | fscan != NULL; | |
2275 | fscan = fscan->fx_next) | |
2276 | if (val == fscan->fx_frag->fr_address + fscan->fx_where | |
2277 | && fscan->fx_r_type != BFD_RELOC_SH_ALIGN | |
2278 | && fscan->fx_r_type != BFD_RELOC_SH_CODE | |
2279 | && fscan->fx_r_type != BFD_RELOC_SH_DATA | |
2280 | && fscan->fx_r_type != BFD_RELOC_SH_LABEL) | |
2281 | break; | |
2282 | if (fscan == NULL) | |
2283 | { | |
2284 | as_warn_where (fix->fx_file, fix->fx_line, | |
2285 | _("can't find fixup pointed to by .uses")); | |
2286 | continue; | |
2287 | } | |
2288 | ||
2289 | if (fscan->fx_tcbit) | |
2290 | { | |
2291 | /* We've already done this one. */ | |
2292 | continue; | |
2293 | } | |
2294 | ||
6b31947e NC |
2295 | /* The variable fscan should also be a fixup to a local symbol |
2296 | in the same section. */ | |
252b5132 RH |
2297 | sym = fscan->fx_addsy; |
2298 | if (sym == NULL | |
2299 | || fscan->fx_subsy != NULL | |
2300 | || fscan->fx_addnumber != 0 | |
2301 | || S_GET_SEGMENT (sym) != sec | |
2302 | #if ! defined (BFD_ASSEMBLER) && defined (OBJ_COFF) | |
2303 | || S_GET_STORAGE_CLASS (sym) == C_EXT | |
2304 | #endif | |
2305 | || S_IS_EXTERNAL (sym)) | |
2306 | { | |
2307 | as_warn_where (fix->fx_file, fix->fx_line, | |
2308 | _(".uses target does not refer to a local symbol in the same section")); | |
2309 | continue; | |
2310 | } | |
2311 | ||
2312 | /* Now we look through all the fixups of all the sections, | |
2313 | counting the number of times we find a reference to sym. */ | |
2314 | info.sym = sym; | |
2315 | info.count = 0; | |
2316 | #ifdef BFD_ASSEMBLER | |
2317 | bfd_map_over_sections (stdoutput, sh_count_relocs, (PTR) &info); | |
2318 | #else | |
2319 | { | |
2320 | int iscan; | |
2321 | ||
2322 | for (iscan = SEG_E0; iscan < SEG_UNKNOWN; iscan++) | |
2323 | sh_count_relocs ((bfd *) NULL, iscan, (PTR) &info); | |
2324 | } | |
2325 | #endif | |
2326 | ||
2327 | if (info.count < 1) | |
2328 | abort (); | |
2329 | ||
2330 | /* Generate a BFD_RELOC_SH_COUNT fixup at the location of sym. | |
2331 | We have already adjusted the value of sym to include the | |
2332 | fragment address, so we undo that adjustment here. */ | |
2333 | subseg_change (sec, 0); | |
49309057 ILT |
2334 | fix_new (symbol_get_frag (sym), |
2335 | S_GET_VALUE (sym) - symbol_get_frag (sym)->fr_address, | |
252b5132 RH |
2336 | 4, &abs_symbol, info.count, 0, BFD_RELOC_SH_COUNT); |
2337 | } | |
2338 | } | |
2339 | ||
2340 | /* This function is called after the symbol table has been completed, | |
2341 | but before the relocs or section contents have been written out. | |
2342 | If we have seen any .uses pseudo-ops, they point to an instruction | |
2343 | which loads a register with the address of a function. We look | |
2344 | through the fixups to find where the function address is being | |
2345 | loaded from. We then generate a COUNT reloc giving the number of | |
2346 | times that function address is referred to. The linker uses this | |
2347 | information when doing relaxing, to decide when it can eliminate | |
2348 | the stored function address entirely. */ | |
2349 | ||
2350 | void | |
2351 | sh_frob_file () | |
2352 | { | |
2353 | if (! sh_relax) | |
2354 | return; | |
2355 | ||
2356 | #ifdef BFD_ASSEMBLER | |
2357 | bfd_map_over_sections (stdoutput, sh_frob_section, (PTR) NULL); | |
2358 | #else | |
2359 | { | |
2360 | int iseg; | |
2361 | ||
2362 | for (iseg = SEG_E0; iseg < SEG_UNKNOWN; iseg++) | |
2363 | sh_frob_section ((bfd *) NULL, iseg, (PTR) NULL); | |
2364 | } | |
2365 | #endif | |
2366 | } | |
2367 | ||
2368 | /* Called after relaxing. Set the correct sizes of the fragments, and | |
2369 | create relocs so that md_apply_fix will fill in the correct values. */ | |
2370 | ||
2371 | void | |
2372 | md_convert_frag (headers, seg, fragP) | |
2373 | #ifdef BFD_ASSEMBLER | |
43841e91 | 2374 | bfd *headers ATTRIBUTE_UNUSED; |
252b5132 RH |
2375 | #else |
2376 | object_headers *headers; | |
2377 | #endif | |
2378 | segT seg; | |
2379 | fragS *fragP; | |
2380 | { | |
2381 | int donerelax = 0; | |
2382 | ||
2383 | switch (fragP->fr_subtype) | |
2384 | { | |
2385 | case C (COND_JUMP, COND8): | |
2386 | case C (COND_JUMP_DELAY, COND8): | |
2387 | subseg_change (seg, 0); | |
2388 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
2389 | 1, BFD_RELOC_SH_PCDISP8BY2); | |
2390 | fragP->fr_fix += 2; | |
2391 | fragP->fr_var = 0; | |
2392 | break; | |
2393 | ||
2394 | case C (UNCOND_JUMP, UNCOND12): | |
2395 | subseg_change (seg, 0); | |
2396 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
2397 | 1, BFD_RELOC_SH_PCDISP12BY2); | |
2398 | fragP->fr_fix += 2; | |
2399 | fragP->fr_var = 0; | |
2400 | break; | |
2401 | ||
2402 | case C (UNCOND_JUMP, UNCOND32): | |
2403 | case C (UNCOND_JUMP, UNDEF_WORD_DISP): | |
2404 | if (fragP->fr_symbol == NULL) | |
99b222b4 HPN |
2405 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2406 | _("displacement overflows 12-bit field")); | |
252b5132 | 2407 | else if (S_IS_DEFINED (fragP->fr_symbol)) |
99b222b4 HPN |
2408 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2409 | _("displacement to defined symbol %s overflows 12-bit field"), | |
2410 | S_GET_NAME (fragP->fr_symbol)); | |
252b5132 | 2411 | else |
99b222b4 HPN |
2412 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2413 | _("displacement to undefined symbol %s overflows 12-bit field"), | |
2414 | S_GET_NAME (fragP->fr_symbol)); | |
2415 | /* Stabilize this frag, so we don't trip an assert. */ | |
2416 | fragP->fr_fix += fragP->fr_var; | |
2417 | fragP->fr_var = 0; | |
252b5132 RH |
2418 | break; |
2419 | ||
2420 | case C (COND_JUMP, COND12): | |
2421 | case C (COND_JUMP_DELAY, COND12): | |
6b31947e | 2422 | /* A bcond won't fit, so turn it into a b!cond; bra disp; nop. */ |
252b5132 RH |
2423 | /* I found that a relax failure for gcc.c-torture/execute/930628-1.c |
2424 | was due to gas incorrectly relaxing an out-of-range conditional | |
2425 | branch with delay slot. It turned: | |
2426 | bf.s L6 (slot mov.l r12,@(44,r0)) | |
2427 | into: | |
c4aa876b | 2428 | |
252b5132 RH |
2429 | 2c: 8f 01 a0 8b bf.s 32 <_main+32> (slot bra L6) |
2430 | 30: 00 09 nop | |
2431 | 32: 10 cb mov.l r12,@(44,r0) | |
2432 | Therefore, branches with delay slots have to be handled | |
2433 | differently from ones without delay slots. */ | |
2434 | { | |
2435 | unsigned char *buffer = | |
2436 | (unsigned char *) (fragP->fr_fix + fragP->fr_literal); | |
2437 | int highbyte = target_big_endian ? 0 : 1; | |
2438 | int lowbyte = target_big_endian ? 1 : 0; | |
2439 | int delay = fragP->fr_subtype == C (COND_JUMP_DELAY, COND12); | |
2440 | ||
2441 | /* Toggle the true/false bit of the bcond. */ | |
2442 | buffer[highbyte] ^= 0x2; | |
2443 | ||
2444 | /* If this is a dalayed branch, we may not put the the bra in the | |
2445 | slot. So we change it to a non-delayed branch, like that: | |
2446 | b! cond slot_label; bra disp; slot_label: slot_insn | |
2447 | ??? We should try if swapping the conditional branch and | |
2448 | its delay-slot insn already makes the branch reach. */ | |
2449 | ||
2450 | /* Build a relocation to six / four bytes farther on. */ | |
2451 | subseg_change (seg, 0); | |
2452 | fix_new (fragP, fragP->fr_fix, 2, | |
2453 | #ifdef BFD_ASSEMBLER | |
2454 | section_symbol (seg), | |
2455 | #else | |
2456 | seg_info (seg)->dot, | |
2457 | #endif | |
2458 | fragP->fr_address + fragP->fr_fix + (delay ? 4 : 6), | |
2459 | 1, BFD_RELOC_SH_PCDISP8BY2); | |
2460 | ||
2461 | /* Set up a jump instruction. */ | |
2462 | buffer[highbyte + 2] = 0xa0; | |
2463 | buffer[lowbyte + 2] = 0; | |
2464 | fix_new (fragP, fragP->fr_fix + 2, 2, fragP->fr_symbol, | |
2465 | fragP->fr_offset, 1, BFD_RELOC_SH_PCDISP12BY2); | |
2466 | ||
2467 | if (delay) | |
2468 | { | |
2469 | buffer[highbyte] &= ~0x4; /* Removes delay slot from branch. */ | |
2470 | fragP->fr_fix += 4; | |
2471 | } | |
2472 | else | |
2473 | { | |
2474 | /* Fill in a NOP instruction. */ | |
2475 | buffer[highbyte + 4] = 0x0; | |
2476 | buffer[lowbyte + 4] = 0x9; | |
2477 | ||
2478 | fragP->fr_fix += 6; | |
2479 | } | |
2480 | fragP->fr_var = 0; | |
2481 | donerelax = 1; | |
2482 | } | |
2483 | break; | |
2484 | ||
2485 | case C (COND_JUMP, COND32): | |
2486 | case C (COND_JUMP_DELAY, COND32): | |
2487 | case C (COND_JUMP, UNDEF_WORD_DISP): | |
2488 | case C (COND_JUMP_DELAY, UNDEF_WORD_DISP): | |
2489 | if (fragP->fr_symbol == NULL) | |
99b222b4 HPN |
2490 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2491 | _("displacement overflows 8-bit field")); | |
252b5132 | 2492 | else if (S_IS_DEFINED (fragP->fr_symbol)) |
99b222b4 HPN |
2493 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2494 | _("displacement to defined symbol %s overflows 8-bit field"), | |
2495 | S_GET_NAME (fragP->fr_symbol)); | |
252b5132 | 2496 | else |
99b222b4 HPN |
2497 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2498 | _("displacement to undefined symbol %s overflows 8-bit field "), | |
2499 | S_GET_NAME (fragP->fr_symbol)); | |
2500 | /* Stabilize this frag, so we don't trip an assert. */ | |
2501 | fragP->fr_fix += fragP->fr_var; | |
2502 | fragP->fr_var = 0; | |
252b5132 RH |
2503 | break; |
2504 | ||
2505 | default: | |
2506 | abort (); | |
2507 | } | |
2508 | ||
2509 | if (donerelax && !sh_relax) | |
2510 | as_warn_where (fragP->fr_file, fragP->fr_line, | |
2511 | _("overflow in branch to %s; converted into longer instruction sequence"), | |
2512 | (fragP->fr_symbol != NULL | |
2513 | ? S_GET_NAME (fragP->fr_symbol) | |
2514 | : "")); | |
2515 | } | |
2516 | ||
2517 | valueT | |
c0fecd35 | 2518 | md_section_align (seg, size) |
dda5ecfc | 2519 | segT seg ATTRIBUTE_UNUSED; |
c0fecd35 | 2520 | valueT size; |
252b5132 RH |
2521 | { |
2522 | #ifdef BFD_ASSEMBLER | |
2523 | #ifdef OBJ_ELF | |
2524 | return size; | |
2525 | #else /* ! OBJ_ELF */ | |
2526 | return ((size + (1 << bfd_get_section_alignment (stdoutput, seg)) - 1) | |
2527 | & (-1 << bfd_get_section_alignment (stdoutput, seg))); | |
2528 | #endif /* ! OBJ_ELF */ | |
2529 | #else /* ! BFD_ASSEMBLER */ | |
2530 | return ((size + (1 << section_alignment[(int) seg]) - 1) | |
2531 | & (-1 << section_alignment[(int) seg])); | |
2532 | #endif /* ! BFD_ASSEMBLER */ | |
2533 | } | |
2534 | ||
2535 | /* This static variable is set by s_uacons to tell sh_cons_align that | |
2536 | the expession does not need to be aligned. */ | |
2537 | ||
2538 | static int sh_no_align_cons = 0; | |
2539 | ||
2540 | /* This handles the unaligned space allocation pseudo-ops, such as | |
2541 | .uaword. .uaword is just like .word, but the value does not need | |
2542 | to be aligned. */ | |
2543 | ||
2544 | static void | |
2545 | s_uacons (bytes) | |
2546 | int bytes; | |
2547 | { | |
2548 | /* Tell sh_cons_align not to align this value. */ | |
2549 | sh_no_align_cons = 1; | |
2550 | cons (bytes); | |
2551 | } | |
2552 | ||
2553 | /* If a .word, et. al., pseud-op is seen, warn if the value is not | |
2554 | aligned correctly. Note that this can cause warnings to be issued | |
2555 | when assembling initialized structured which were declared with the | |
2556 | packed attribute. FIXME: Perhaps we should require an option to | |
2557 | enable this warning? */ | |
2558 | ||
2559 | void | |
2560 | sh_cons_align (nbytes) | |
2561 | int nbytes; | |
2562 | { | |
2563 | int nalign; | |
2564 | char *p; | |
2565 | ||
2566 | if (sh_no_align_cons) | |
2567 | { | |
2568 | /* This is an unaligned pseudo-op. */ | |
2569 | sh_no_align_cons = 0; | |
2570 | return; | |
2571 | } | |
2572 | ||
2573 | nalign = 0; | |
2574 | while ((nbytes & 1) == 0) | |
2575 | { | |
2576 | ++nalign; | |
2577 | nbytes >>= 1; | |
2578 | } | |
2579 | ||
2580 | if (nalign == 0) | |
2581 | return; | |
2582 | ||
2583 | if (now_seg == absolute_section) | |
2584 | { | |
2585 | if ((abs_section_offset & ((1 << nalign) - 1)) != 0) | |
2586 | as_warn (_("misaligned data")); | |
2587 | return; | |
2588 | } | |
2589 | ||
0a9ef439 | 2590 | p = frag_var (rs_align_test, 1, 1, (relax_substateT) 0, |
252b5132 RH |
2591 | (symbolS *) NULL, (offsetT) nalign, (char *) NULL); |
2592 | ||
2593 | record_alignment (now_seg, nalign); | |
2594 | } | |
2595 | ||
2596 | /* When relaxing, we need to output a reloc for any .align directive | |
2597 | that requests alignment to a four byte boundary or larger. This is | |
2598 | also where we check for misaligned data. */ | |
2599 | ||
2600 | void | |
2601 | sh_handle_align (frag) | |
2602 | fragS *frag; | |
2603 | { | |
0a9ef439 RH |
2604 | int bytes = frag->fr_next->fr_address - frag->fr_address - frag->fr_fix; |
2605 | ||
2606 | if (frag->fr_type == rs_align_code) | |
2607 | { | |
2608 | static const unsigned char big_nop_pattern[] = { 0x00, 0x09 }; | |
2609 | static const unsigned char little_nop_pattern[] = { 0x09, 0x00 }; | |
2610 | ||
2611 | char *p = frag->fr_literal + frag->fr_fix; | |
2612 | ||
2613 | if (bytes & 1) | |
2614 | { | |
2615 | *p++ = 0; | |
2616 | bytes--; | |
2617 | frag->fr_fix += 1; | |
2618 | } | |
2619 | ||
2620 | if (target_big_endian) | |
2621 | { | |
2622 | memcpy (p, big_nop_pattern, sizeof big_nop_pattern); | |
2623 | frag->fr_var = sizeof big_nop_pattern; | |
2624 | } | |
2625 | else | |
2626 | { | |
2627 | memcpy (p, little_nop_pattern, sizeof little_nop_pattern); | |
2628 | frag->fr_var = sizeof little_nop_pattern; | |
2629 | } | |
2630 | } | |
2631 | else if (frag->fr_type == rs_align_test) | |
2632 | { | |
2633 | if (bytes != 0) | |
2634 | as_warn_where (frag->fr_file, frag->fr_line, _("misaligned data")); | |
2635 | } | |
2636 | ||
252b5132 | 2637 | if (sh_relax |
0a9ef439 RH |
2638 | && (frag->fr_type == rs_align |
2639 | || frag->fr_type == rs_align_code) | |
252b5132 RH |
2640 | && frag->fr_address + frag->fr_fix > 0 |
2641 | && frag->fr_offset > 1 | |
2642 | && now_seg != bss_section) | |
2643 | fix_new (frag, frag->fr_fix, 2, &abs_symbol, frag->fr_offset, 0, | |
2644 | BFD_RELOC_SH_ALIGN); | |
252b5132 RH |
2645 | } |
2646 | ||
2647 | /* This macro decides whether a particular reloc is an entry in a | |
2648 | switch table. It is used when relaxing, because the linker needs | |
2649 | to know about all such entries so that it can adjust them if | |
2650 | necessary. */ | |
2651 | ||
2652 | #ifdef BFD_ASSEMBLER | |
2653 | #define SWITCH_TABLE_CONS(fix) (0) | |
2654 | #else | |
2655 | #define SWITCH_TABLE_CONS(fix) \ | |
2656 | ((fix)->fx_r_type == 0 \ | |
2657 | && ((fix)->fx_size == 2 \ | |
2658 | || (fix)->fx_size == 1 \ | |
2659 | || (fix)->fx_size == 4)) | |
2660 | #endif | |
2661 | ||
2662 | #define SWITCH_TABLE(fix) \ | |
2663 | ((fix)->fx_addsy != NULL \ | |
2664 | && (fix)->fx_subsy != NULL \ | |
2665 | && S_GET_SEGMENT ((fix)->fx_addsy) == text_section \ | |
2666 | && S_GET_SEGMENT ((fix)->fx_subsy) == text_section \ | |
2667 | && ((fix)->fx_r_type == BFD_RELOC_32 \ | |
2668 | || (fix)->fx_r_type == BFD_RELOC_16 \ | |
2669 | || (fix)->fx_r_type == BFD_RELOC_8 \ | |
2670 | || SWITCH_TABLE_CONS (fix))) | |
2671 | ||
2672 | /* See whether we need to force a relocation into the output file. | |
2673 | This is used to force out switch and PC relative relocations when | |
2674 | relaxing. */ | |
2675 | ||
2676 | int | |
2677 | sh_force_relocation (fix) | |
2678 | fixS *fix; | |
2679 | { | |
2680 | ||
2681 | if (fix->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
015551fc JR |
2682 | || fix->fx_r_type == BFD_RELOC_VTABLE_ENTRY |
2683 | || fix->fx_r_type == BFD_RELOC_SH_LOOP_START | |
2684 | || fix->fx_r_type == BFD_RELOC_SH_LOOP_END) | |
252b5132 RH |
2685 | return 1; |
2686 | ||
2687 | if (! sh_relax) | |
2688 | return 0; | |
2689 | ||
2690 | return (fix->fx_pcrel | |
2691 | || SWITCH_TABLE (fix) | |
2692 | || fix->fx_r_type == BFD_RELOC_SH_COUNT | |
2693 | || fix->fx_r_type == BFD_RELOC_SH_ALIGN | |
2694 | || fix->fx_r_type == BFD_RELOC_SH_CODE | |
2695 | || fix->fx_r_type == BFD_RELOC_SH_DATA | |
2696 | || fix->fx_r_type == BFD_RELOC_SH_LABEL); | |
2697 | } | |
2698 | ||
2699 | #ifdef OBJ_ELF | |
2700 | boolean | |
2701 | sh_fix_adjustable (fixP) | |
2702 | fixS *fixP; | |
2703 | { | |
2704 | ||
2705 | if (fixP->fx_addsy == NULL) | |
2706 | return 1; | |
c4aa876b | 2707 | |
a1cc9221 AO |
2708 | if (fixP->fx_r_type == BFD_RELOC_SH_PCDISP8BY2 |
2709 | || fixP->fx_r_type == BFD_RELOC_SH_PCDISP12BY2 | |
2710 | || fixP->fx_r_type == BFD_RELOC_SH_PCRELIMM8BY2 | |
2711 | || fixP->fx_r_type == BFD_RELOC_SH_PCRELIMM8BY4 | |
2712 | || fixP->fx_r_type == BFD_RELOC_8_PCREL | |
2713 | || fixP->fx_r_type == BFD_RELOC_SH_SWITCH16 | |
2714 | || fixP->fx_r_type == BFD_RELOC_SH_SWITCH32) | |
2715 | return 1; | |
2716 | ||
2717 | if (! TC_RELOC_RTSYM_LOC_FIXUP (fixP) | |
2718 | || fixP->fx_r_type == BFD_RELOC_32_GOTOFF | |
2719 | || fixP->fx_r_type == BFD_RELOC_RVA) | |
2720 | return 0; | |
2721 | ||
252b5132 RH |
2722 | /* We need the symbol name for the VTABLE entries */ |
2723 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
2724 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
2725 | return 0; | |
2726 | ||
2727 | return 1; | |
2728 | } | |
d4845d57 | 2729 | |
6b31947e NC |
2730 | void |
2731 | sh_elf_final_processing () | |
d4845d57 JR |
2732 | { |
2733 | int val; | |
2734 | ||
2735 | /* Set file-specific flags to indicate if this code needs | |
2736 | a processor with the sh-dsp / sh3e ISA to execute. */ | |
2737 | if (valid_arch & arch_sh1) | |
2738 | val = EF_SH1; | |
2739 | else if (valid_arch & arch_sh2) | |
2740 | val = EF_SH2; | |
2741 | else if (valid_arch & arch_sh_dsp) | |
2742 | val = EF_SH_DSP; | |
2743 | else if (valid_arch & arch_sh3) | |
2744 | val = EF_SH3; | |
2745 | else if (valid_arch & arch_sh3_dsp) | |
2746 | val = EF_SH_DSP; | |
2747 | else if (valid_arch & arch_sh3e) | |
2748 | val = EF_SH3E; | |
2749 | else if (valid_arch & arch_sh4) | |
2750 | val = EF_SH4; | |
2751 | else | |
2752 | abort (); | |
2753 | ||
2754 | elf_elfheader (stdoutput)->e_flags &= ~EF_SH_MACH_MASK; | |
2755 | elf_elfheader (stdoutput)->e_flags |= val; | |
2756 | } | |
252b5132 RH |
2757 | #endif |
2758 | ||
2759 | /* Apply a fixup to the object file. */ | |
2760 | ||
2761 | #ifdef BFD_ASSEMBLER | |
2762 | int | |
2763 | md_apply_fix (fixP, valp) | |
2764 | fixS *fixP; | |
2765 | valueT *valp; | |
2766 | #else | |
2767 | void | |
2768 | md_apply_fix (fixP, val) | |
2769 | fixS *fixP; | |
2770 | long val; | |
2771 | #endif | |
2772 | { | |
2773 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
2774 | int lowbyte = target_big_endian ? 1 : 0; | |
2775 | int highbyte = target_big_endian ? 0 : 1; | |
2776 | #ifdef BFD_ASSEMBLER | |
2777 | long val = *valp; | |
2778 | #endif | |
2779 | long max, min; | |
2780 | int shift; | |
2781 | ||
2782 | #ifdef BFD_ASSEMBLER | |
a1cc9221 AO |
2783 | /* A difference between two symbols, the second of which is in the |
2784 | current section, is transformed in a PC-relative relocation to | |
2785 | the other symbol. We have to adjust the relocation type here. */ | |
2786 | if (fixP->fx_pcrel) | |
2787 | { | |
2788 | switch (fixP->fx_r_type) | |
2789 | { | |
2790 | default: | |
2791 | break; | |
2792 | ||
2793 | case BFD_RELOC_32: | |
2794 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
2795 | break; | |
2796 | ||
2797 | /* Currently, we only support 32-bit PCREL relocations. | |
2798 | We'd need a new reloc type to handle 16_PCREL, and | |
2799 | 8_PCREL is already taken for R_SH_SWITCH8, which | |
2800 | apparently does something completely different than what | |
2801 | we need. FIXME. */ | |
2802 | case BFD_RELOC_16: | |
2803 | bfd_set_error (bfd_error_bad_value); | |
2804 | return false; | |
81d4177b | 2805 | |
a1cc9221 AO |
2806 | case BFD_RELOC_8: |
2807 | bfd_set_error (bfd_error_bad_value); | |
2808 | return false; | |
2809 | } | |
2810 | } | |
2811 | ||
6b31947e NC |
2812 | /* The function adjust_reloc_syms won't convert a reloc against a weak |
2813 | symbol into a reloc against a section, but bfd_install_relocation | |
2814 | will screw up if the symbol is defined, so we have to adjust val here | |
1308f14c HPN |
2815 | to avoid the screw up later. |
2816 | ||
2817 | For ordinary relocs, this does not happen for ELF, since for ELF, | |
2818 | bfd_install_relocation uses the "special function" field of the | |
2819 | howto, and does not execute the code that needs to be undone, as long | |
2820 | as the special function does not return bfd_reloc_continue. | |
2821 | It can happen for GOT- and PLT-type relocs the way they are | |
2822 | described in elf32-sh.c as they use bfd_elf_generic_reloc, but it | |
2823 | doesn't matter here since those relocs don't use VAL; see below. */ | |
2824 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour | |
2825 | && fixP->fx_addsy != NULL | |
252b5132 RH |
2826 | && S_IS_WEAK (fixP->fx_addsy)) |
2827 | val -= S_GET_VALUE (fixP->fx_addsy); | |
2828 | #endif | |
2829 | ||
2830 | #ifndef BFD_ASSEMBLER | |
2831 | if (fixP->fx_r_type == 0) | |
2832 | { | |
2833 | if (fixP->fx_size == 2) | |
2834 | fixP->fx_r_type = BFD_RELOC_16; | |
2835 | else if (fixP->fx_size == 4) | |
2836 | fixP->fx_r_type = BFD_RELOC_32; | |
2837 | else if (fixP->fx_size == 1) | |
2838 | fixP->fx_r_type = BFD_RELOC_8; | |
2839 | else | |
2840 | abort (); | |
2841 | } | |
2842 | #endif | |
2843 | ||
2844 | max = min = 0; | |
2845 | shift = 0; | |
2846 | switch (fixP->fx_r_type) | |
2847 | { | |
2848 | case BFD_RELOC_SH_IMM4: | |
2849 | max = 0xf; | |
2850 | *buf = (*buf & 0xf0) | (val & 0xf); | |
2851 | break; | |
2852 | ||
2853 | case BFD_RELOC_SH_IMM4BY2: | |
2854 | max = 0xf; | |
2855 | shift = 1; | |
2856 | *buf = (*buf & 0xf0) | ((val >> 1) & 0xf); | |
2857 | break; | |
2858 | ||
2859 | case BFD_RELOC_SH_IMM4BY4: | |
2860 | max = 0xf; | |
2861 | shift = 2; | |
2862 | *buf = (*buf & 0xf0) | ((val >> 2) & 0xf); | |
2863 | break; | |
2864 | ||
2865 | case BFD_RELOC_SH_IMM8BY2: | |
2866 | max = 0xff; | |
2867 | shift = 1; | |
2868 | *buf = val >> 1; | |
2869 | break; | |
2870 | ||
2871 | case BFD_RELOC_SH_IMM8BY4: | |
2872 | max = 0xff; | |
2873 | shift = 2; | |
2874 | *buf = val >> 2; | |
2875 | break; | |
2876 | ||
2877 | case BFD_RELOC_8: | |
2878 | case BFD_RELOC_SH_IMM8: | |
2879 | /* Sometimes the 8 bit value is sign extended (e.g., add) and | |
2880 | sometimes it is not (e.g., and). We permit any 8 bit value. | |
2881 | Note that adding further restrictions may invalidate | |
2882 | reasonable looking assembly code, such as ``and -0x1,r0''. */ | |
2883 | max = 0xff; | |
c4aa876b | 2884 | min = -0xff; |
252b5132 RH |
2885 | *buf++ = val; |
2886 | break; | |
2887 | ||
2888 | case BFD_RELOC_SH_PCRELIMM8BY4: | |
2889 | /* The lower two bits of the PC are cleared before the | |
2890 | displacement is added in. We can assume that the destination | |
2891 | is on a 4 byte bounday. If this instruction is also on a 4 | |
2892 | byte boundary, then we want | |
2893 | (target - here) / 4 | |
2894 | and target - here is a multiple of 4. | |
2895 | Otherwise, we are on a 2 byte boundary, and we want | |
2896 | (target - (here - 2)) / 4 | |
2897 | and target - here is not a multiple of 4. Computing | |
2898 | (target - (here - 2)) / 4 == (target - here + 2) / 4 | |
2899 | works for both cases, since in the first case the addition of | |
2900 | 2 will be removed by the division. target - here is in the | |
2901 | variable val. */ | |
2902 | val = (val + 2) / 4; | |
2903 | if (val & ~0xff) | |
2904 | as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far")); | |
2905 | buf[lowbyte] = val; | |
2906 | break; | |
2907 | ||
2908 | case BFD_RELOC_SH_PCRELIMM8BY2: | |
2909 | val /= 2; | |
2910 | if (val & ~0xff) | |
2911 | as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far")); | |
2912 | buf[lowbyte] = val; | |
2913 | break; | |
2914 | ||
2915 | case BFD_RELOC_SH_PCDISP8BY2: | |
2916 | val /= 2; | |
2917 | if (val < -0x80 || val > 0x7f) | |
2918 | as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far")); | |
2919 | buf[lowbyte] = val; | |
2920 | break; | |
2921 | ||
2922 | case BFD_RELOC_SH_PCDISP12BY2: | |
2923 | val /= 2; | |
8637c045 | 2924 | if (val < -0x800 || val > 0x7ff) |
252b5132 RH |
2925 | as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far")); |
2926 | buf[lowbyte] = val & 0xff; | |
2927 | buf[highbyte] |= (val >> 8) & 0xf; | |
2928 | break; | |
2929 | ||
2930 | case BFD_RELOC_32: | |
a1cc9221 | 2931 | case BFD_RELOC_32_PCREL: |
1db77c8e | 2932 | md_number_to_chars (buf, val, 4); |
252b5132 RH |
2933 | break; |
2934 | ||
2935 | case BFD_RELOC_16: | |
1db77c8e | 2936 | md_number_to_chars (buf, val, 2); |
252b5132 RH |
2937 | break; |
2938 | ||
2939 | case BFD_RELOC_SH_USES: | |
2940 | /* Pass the value into sh_coff_reloc_mangle. */ | |
2941 | fixP->fx_addnumber = val; | |
2942 | break; | |
2943 | ||
2944 | case BFD_RELOC_SH_COUNT: | |
2945 | case BFD_RELOC_SH_ALIGN: | |
2946 | case BFD_RELOC_SH_CODE: | |
2947 | case BFD_RELOC_SH_DATA: | |
2948 | case BFD_RELOC_SH_LABEL: | |
2949 | /* Nothing to do here. */ | |
2950 | break; | |
2951 | ||
015551fc JR |
2952 | case BFD_RELOC_SH_LOOP_START: |
2953 | case BFD_RELOC_SH_LOOP_END: | |
2954 | ||
252b5132 RH |
2955 | case BFD_RELOC_VTABLE_INHERIT: |
2956 | case BFD_RELOC_VTABLE_ENTRY: | |
2957 | fixP->fx_done = 0; | |
49309057 ILT |
2958 | #ifdef BFD_ASSEMBLER |
2959 | return 0; | |
2960 | #else | |
252b5132 | 2961 | return; |
49309057 | 2962 | #endif |
252b5132 | 2963 | |
a1cc9221 AO |
2964 | #ifdef OBJ_ELF |
2965 | case BFD_RELOC_32_PLT_PCREL: | |
2966 | /* Make the jump instruction point to the address of the operand. At | |
81d4177b | 2967 | runtime we merely add the offset to the actual PLT entry. */ |
a1cc9221 AO |
2968 | *valp = 0xfffffffc; |
2969 | break; | |
2970 | ||
2971 | case BFD_RELOC_SH_GOTPC: | |
2972 | /* This is tough to explain. We end up with this one if we have | |
2973 | operands that look like "_GLOBAL_OFFSET_TABLE_+[.-.L284]". | |
2974 | The goal here is to obtain the absolute address of the GOT, | |
2975 | and it is strongly preferable from a performance point of | |
2976 | view to avoid using a runtime relocation for this. There are | |
2977 | cases where you have something like: | |
81d4177b | 2978 | |
a1cc9221 | 2979 | .long _GLOBAL_OFFSET_TABLE_+[.-.L66] |
81d4177b | 2980 | |
a1cc9221 AO |
2981 | and here no correction would be required. Internally in the |
2982 | assembler we treat operands of this form as not being pcrel | |
2983 | since the '.' is explicitly mentioned, and I wonder whether | |
2984 | it would simplify matters to do it this way. Who knows. In | |
2985 | earlier versions of the PIC patches, the pcrel_adjust field | |
2986 | was used to store the correction, but since the expression is | |
2987 | not pcrel, I felt it would be confusing to do it this way. */ | |
2988 | *valp -= 1; | |
2989 | md_number_to_chars (buf, val, 4); | |
2990 | break; | |
2991 | ||
2992 | case BFD_RELOC_32_GOT_PCREL: | |
2993 | *valp = 0; /* Fully resolved at runtime. No addend. */ | |
2994 | md_number_to_chars (buf, 0, 4); | |
2995 | break; | |
2996 | ||
2997 | case BFD_RELOC_32_GOTOFF: | |
2998 | break; | |
2999 | #endif | |
3000 | ||
252b5132 RH |
3001 | default: |
3002 | abort (); | |
3003 | } | |
3004 | ||
3005 | if (shift != 0) | |
3006 | { | |
3007 | if ((val & ((1 << shift) - 1)) != 0) | |
3008 | as_bad_where (fixP->fx_file, fixP->fx_line, _("misaligned offset")); | |
3009 | if (val >= 0) | |
3010 | val >>= shift; | |
3011 | else | |
3012 | val = ((val >> shift) | |
3013 | | ((long) -1 & ~ ((long) -1 >> shift))); | |
3014 | } | |
3015 | if (max != 0 && (val < min || val > max)) | |
3016 | as_bad_where (fixP->fx_file, fixP->fx_line, _("offset out of range")); | |
3017 | ||
3018 | #ifdef BFD_ASSEMBLER | |
3019 | return 0; | |
3020 | #endif | |
3021 | } | |
3022 | ||
3023 | /* Called just before address relaxation. Return the length | |
3024 | by which a fragment must grow to reach it's destination. */ | |
3025 | ||
3026 | int | |
3027 | md_estimate_size_before_relax (fragP, segment_type) | |
3028 | register fragS *fragP; | |
3029 | register segT segment_type; | |
3030 | { | |
3031 | switch (fragP->fr_subtype) | |
3032 | { | |
3033 | case C (UNCOND_JUMP, UNDEF_DISP): | |
6b31947e | 3034 | /* Used to be a branch to somewhere which was unknown. */ |
252b5132 RH |
3035 | if (!fragP->fr_symbol) |
3036 | { | |
3037 | fragP->fr_subtype = C (UNCOND_JUMP, UNCOND12); | |
3038 | fragP->fr_var = md_relax_table[C (UNCOND_JUMP, UNCOND12)].rlx_length; | |
3039 | } | |
3040 | else if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type) | |
3041 | { | |
3042 | fragP->fr_subtype = C (UNCOND_JUMP, UNCOND12); | |
3043 | fragP->fr_var = md_relax_table[C (UNCOND_JUMP, UNCOND12)].rlx_length; | |
3044 | } | |
3045 | else | |
3046 | { | |
3047 | fragP->fr_subtype = C (UNCOND_JUMP, UNDEF_WORD_DISP); | |
3048 | fragP->fr_var = md_relax_table[C (UNCOND_JUMP, UNCOND32)].rlx_length; | |
3049 | return md_relax_table[C (UNCOND_JUMP, UNCOND32)].rlx_length; | |
3050 | } | |
3051 | break; | |
3052 | ||
3053 | default: | |
3054 | abort (); | |
3055 | case C (COND_JUMP, UNDEF_DISP): | |
3056 | case C (COND_JUMP_DELAY, UNDEF_DISP): | |
6b31947e | 3057 | /* Used to be a branch to somewhere which was unknown. */ |
252b5132 RH |
3058 | if (fragP->fr_symbol |
3059 | && S_GET_SEGMENT (fragP->fr_symbol) == segment_type) | |
3060 | { | |
3061 | int what = GET_WHAT (fragP->fr_subtype); | |
3062 | /* Got a symbol and it's defined in this segment, become byte | |
6b31947e | 3063 | sized - maybe it will fix up. */ |
252b5132 RH |
3064 | fragP->fr_subtype = C (what, COND8); |
3065 | fragP->fr_var = md_relax_table[C (what, COND8)].rlx_length; | |
3066 | } | |
3067 | else if (fragP->fr_symbol) | |
3068 | { | |
3069 | int what = GET_WHAT (fragP->fr_subtype); | |
6b31947e | 3070 | /* Its got a segment, but its not ours, so it will always be long. */ |
252b5132 RH |
3071 | fragP->fr_subtype = C (what, UNDEF_WORD_DISP); |
3072 | fragP->fr_var = md_relax_table[C (what, COND32)].rlx_length; | |
3073 | return md_relax_table[C (what, COND32)].rlx_length; | |
3074 | } | |
3075 | else | |
3076 | { | |
3077 | int what = GET_WHAT (fragP->fr_subtype); | |
6b31947e | 3078 | /* We know the abs value. */ |
252b5132 RH |
3079 | fragP->fr_subtype = C (what, COND8); |
3080 | fragP->fr_var = md_relax_table[C (what, COND8)].rlx_length; | |
3081 | } | |
3082 | ||
3083 | break; | |
3084 | } | |
3085 | return fragP->fr_var; | |
3086 | } | |
3087 | ||
6b31947e | 3088 | /* Put number into target byte order. */ |
252b5132 RH |
3089 | |
3090 | void | |
3091 | md_number_to_chars (ptr, use, nbytes) | |
3092 | char *ptr; | |
3093 | valueT use; | |
3094 | int nbytes; | |
3095 | { | |
3096 | if (! target_big_endian) | |
3097 | number_to_chars_littleendian (ptr, use, nbytes); | |
3098 | else | |
3099 | number_to_chars_bigendian (ptr, use, nbytes); | |
3100 | } | |
3101 | ||
3102 | long | |
3103 | md_pcrel_from (fixP) | |
3104 | fixS *fixP; | |
3105 | { | |
3106 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address + 2; | |
3107 | } | |
3108 | ||
3109 | #ifdef OBJ_COFF | |
3110 | ||
3111 | int | |
3112 | tc_coff_sizemachdep (frag) | |
3113 | fragS *frag; | |
3114 | { | |
3115 | return md_relax_table[frag->fr_subtype].rlx_length; | |
3116 | } | |
3117 | ||
3118 | #endif /* OBJ_COFF */ | |
3119 | ||
252b5132 RH |
3120 | #ifndef BFD_ASSEMBLER |
3121 | #ifdef OBJ_COFF | |
3122 | ||
3123 | /* Map BFD relocs to SH COFF relocs. */ | |
3124 | ||
3125 | struct reloc_map | |
3126 | { | |
3127 | bfd_reloc_code_real_type bfd_reloc; | |
3128 | int sh_reloc; | |
3129 | }; | |
3130 | ||
3131 | static const struct reloc_map coff_reloc_map[] = | |
3132 | { | |
3133 | { BFD_RELOC_32, R_SH_IMM32 }, | |
3134 | { BFD_RELOC_16, R_SH_IMM16 }, | |
3135 | { BFD_RELOC_8, R_SH_IMM8 }, | |
3136 | { BFD_RELOC_SH_PCDISP8BY2, R_SH_PCDISP8BY2 }, | |
3137 | { BFD_RELOC_SH_PCDISP12BY2, R_SH_PCDISP }, | |
3138 | { BFD_RELOC_SH_IMM4, R_SH_IMM4 }, | |
3139 | { BFD_RELOC_SH_IMM4BY2, R_SH_IMM4BY2 }, | |
3140 | { BFD_RELOC_SH_IMM4BY4, R_SH_IMM4BY4 }, | |
3141 | { BFD_RELOC_SH_IMM8, R_SH_IMM8 }, | |
3142 | { BFD_RELOC_SH_IMM8BY2, R_SH_IMM8BY2 }, | |
3143 | { BFD_RELOC_SH_IMM8BY4, R_SH_IMM8BY4 }, | |
3144 | { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_PCRELIMM8BY2 }, | |
3145 | { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_PCRELIMM8BY4 }, | |
3146 | { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, | |
3147 | { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, | |
3148 | { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, | |
3149 | { BFD_RELOC_SH_USES, R_SH_USES }, | |
3150 | { BFD_RELOC_SH_COUNT, R_SH_COUNT }, | |
3151 | { BFD_RELOC_SH_ALIGN, R_SH_ALIGN }, | |
3152 | { BFD_RELOC_SH_CODE, R_SH_CODE }, | |
3153 | { BFD_RELOC_SH_DATA, R_SH_DATA }, | |
3154 | { BFD_RELOC_SH_LABEL, R_SH_LABEL }, | |
3155 | { BFD_RELOC_UNUSED, 0 } | |
3156 | }; | |
3157 | ||
3158 | /* Adjust a reloc for the SH. This is similar to the generic code, | |
3159 | but does some minor tweaking. */ | |
3160 | ||
3161 | void | |
3162 | sh_coff_reloc_mangle (seg, fix, intr, paddr) | |
3163 | segment_info_type *seg; | |
3164 | fixS *fix; | |
3165 | struct internal_reloc *intr; | |
3166 | unsigned int paddr; | |
3167 | { | |
3168 | symbolS *symbol_ptr = fix->fx_addsy; | |
3169 | symbolS *dot; | |
3170 | ||
3171 | intr->r_vaddr = paddr + fix->fx_frag->fr_address + fix->fx_where; | |
3172 | ||
3173 | if (! SWITCH_TABLE (fix)) | |
3174 | { | |
3175 | const struct reloc_map *rm; | |
3176 | ||
3177 | for (rm = coff_reloc_map; rm->bfd_reloc != BFD_RELOC_UNUSED; rm++) | |
3178 | if (rm->bfd_reloc == (bfd_reloc_code_real_type) fix->fx_r_type) | |
3179 | break; | |
3180 | if (rm->bfd_reloc == BFD_RELOC_UNUSED) | |
3181 | as_bad_where (fix->fx_file, fix->fx_line, | |
3182 | _("Can not represent %s relocation in this object file format"), | |
3183 | bfd_get_reloc_code_name (fix->fx_r_type)); | |
3184 | intr->r_type = rm->sh_reloc; | |
3185 | intr->r_offset = 0; | |
3186 | } | |
3187 | else | |
3188 | { | |
3189 | know (sh_relax); | |
3190 | ||
3191 | if (fix->fx_r_type == BFD_RELOC_16) | |
3192 | intr->r_type = R_SH_SWITCH16; | |
3193 | else if (fix->fx_r_type == BFD_RELOC_8) | |
3194 | intr->r_type = R_SH_SWITCH8; | |
3195 | else if (fix->fx_r_type == BFD_RELOC_32) | |
3196 | intr->r_type = R_SH_SWITCH32; | |
3197 | else | |
3198 | abort (); | |
3199 | ||
3200 | /* For a switch reloc, we set r_offset to the difference between | |
3201 | the reloc address and the subtrahend. When the linker is | |
3202 | doing relaxing, it can use the determine the starting and | |
3203 | ending points of the switch difference expression. */ | |
3204 | intr->r_offset = intr->r_vaddr - S_GET_VALUE (fix->fx_subsy); | |
3205 | } | |
3206 | ||
3207 | /* PC relative relocs are always against the current section. */ | |
3208 | if (symbol_ptr == NULL) | |
3209 | { | |
3210 | switch (fix->fx_r_type) | |
3211 | { | |
3212 | case BFD_RELOC_SH_PCRELIMM8BY2: | |
3213 | case BFD_RELOC_SH_PCRELIMM8BY4: | |
3214 | case BFD_RELOC_SH_PCDISP8BY2: | |
3215 | case BFD_RELOC_SH_PCDISP12BY2: | |
3216 | case BFD_RELOC_SH_USES: | |
3217 | symbol_ptr = seg->dot; | |
3218 | break; | |
3219 | default: | |
3220 | break; | |
3221 | } | |
3222 | } | |
3223 | ||
3224 | if (fix->fx_r_type == BFD_RELOC_SH_USES) | |
3225 | { | |
3226 | /* We can't store the offset in the object file, since this | |
3227 | reloc does not take up any space, so we store it in r_offset. | |
3228 | The fx_addnumber field was set in md_apply_fix. */ | |
3229 | intr->r_offset = fix->fx_addnumber; | |
3230 | } | |
3231 | else if (fix->fx_r_type == BFD_RELOC_SH_COUNT) | |
3232 | { | |
3233 | /* We can't store the count in the object file, since this reloc | |
3234 | does not take up any space, so we store it in r_offset. The | |
3235 | fx_offset field was set when the fixup was created in | |
3236 | sh_coff_frob_file. */ | |
3237 | intr->r_offset = fix->fx_offset; | |
3238 | /* This reloc is always absolute. */ | |
3239 | symbol_ptr = NULL; | |
3240 | } | |
3241 | else if (fix->fx_r_type == BFD_RELOC_SH_ALIGN) | |
3242 | { | |
3243 | /* Store the alignment in the r_offset field. */ | |
3244 | intr->r_offset = fix->fx_offset; | |
3245 | /* This reloc is always absolute. */ | |
3246 | symbol_ptr = NULL; | |
3247 | } | |
3248 | else if (fix->fx_r_type == BFD_RELOC_SH_CODE | |
3249 | || fix->fx_r_type == BFD_RELOC_SH_DATA | |
3250 | || fix->fx_r_type == BFD_RELOC_SH_LABEL) | |
3251 | { | |
3252 | /* These relocs are always absolute. */ | |
3253 | symbol_ptr = NULL; | |
3254 | } | |
3255 | ||
3256 | /* Turn the segment of the symbol into an offset. */ | |
3257 | if (symbol_ptr != NULL) | |
3258 | { | |
3259 | dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot; | |
3260 | if (dot != NULL) | |
3261 | intr->r_symndx = dot->sy_number; | |
3262 | else | |
3263 | intr->r_symndx = symbol_ptr->sy_number; | |
3264 | } | |
3265 | else | |
3266 | intr->r_symndx = -1; | |
3267 | } | |
3268 | ||
3269 | #endif /* OBJ_COFF */ | |
3270 | #endif /* ! BFD_ASSEMBLER */ | |
3271 | ||
3272 | #ifdef BFD_ASSEMBLER | |
3273 | ||
3274 | /* Create a reloc. */ | |
3275 | ||
3276 | arelent * | |
3277 | tc_gen_reloc (section, fixp) | |
43841e91 | 3278 | asection *section ATTRIBUTE_UNUSED; |
252b5132 RH |
3279 | fixS *fixp; |
3280 | { | |
3281 | arelent *rel; | |
3282 | bfd_reloc_code_real_type r_type; | |
3283 | ||
3284 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
3285 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
3286 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
3287 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; |
3288 | ||
3289 | r_type = fixp->fx_r_type; | |
3290 | ||
3291 | if (SWITCH_TABLE (fixp)) | |
3292 | { | |
3293 | rel->addend = rel->address - S_GET_VALUE (fixp->fx_subsy); | |
3294 | if (r_type == BFD_RELOC_16) | |
3295 | r_type = BFD_RELOC_SH_SWITCH16; | |
3296 | else if (r_type == BFD_RELOC_8) | |
3297 | r_type = BFD_RELOC_8_PCREL; | |
3298 | else if (r_type == BFD_RELOC_32) | |
3299 | r_type = BFD_RELOC_SH_SWITCH32; | |
3300 | else | |
3301 | abort (); | |
3302 | } | |
3303 | else if (r_type == BFD_RELOC_SH_USES) | |
3304 | rel->addend = fixp->fx_addnumber; | |
3305 | else if (r_type == BFD_RELOC_SH_COUNT) | |
3306 | rel->addend = fixp->fx_offset; | |
3307 | else if (r_type == BFD_RELOC_SH_ALIGN) | |
3308 | rel->addend = fixp->fx_offset; | |
3309 | else if (r_type == BFD_RELOC_VTABLE_INHERIT | |
3310 | || r_type == BFD_RELOC_VTABLE_ENTRY) | |
3311 | rel->addend = fixp->fx_offset; | |
015551fc JR |
3312 | else if (r_type == BFD_RELOC_SH_LOOP_START |
3313 | || r_type == BFD_RELOC_SH_LOOP_END) | |
3314 | rel->addend = fixp->fx_offset; | |
3315 | else if (r_type == BFD_RELOC_SH_LABEL && fixp->fx_pcrel) | |
3316 | { | |
3317 | rel->addend = 0; | |
3318 | rel->address = rel->addend = fixp->fx_offset; | |
3319 | } | |
252b5132 RH |
3320 | else if (fixp->fx_pcrel) |
3321 | rel->addend = fixp->fx_addnumber; | |
a1cc9221 AO |
3322 | else if (r_type == BFD_RELOC_32 || r_type == BFD_RELOC_32_GOTOFF) |
3323 | rel->addend = fixp->fx_addnumber; | |
252b5132 RH |
3324 | else |
3325 | rel->addend = 0; | |
3326 | ||
3327 | rel->howto = bfd_reloc_type_lookup (stdoutput, r_type); | |
3328 | if (rel->howto == NULL) | |
3329 | { | |
3330 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
3331 | _("Cannot represent relocation type %s"), | |
3332 | bfd_get_reloc_code_name (r_type)); | |
3333 | /* Set howto to a garbage value so that we can keep going. */ | |
3334 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
3335 | assert (rel->howto != NULL); | |
3336 | } | |
3337 | ||
3338 | return rel; | |
3339 | } | |
3340 | ||
3341 | #endif /* BFD_ASSEMBLER */ |