Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-sh.c -- Assemble code for the Hitachi Super-H |
aae6ddf9 | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 |
f7e42eb4 | 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" | |
3882b010 | 30 | #include "safe-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 | |
e08ae979 HPN |
39 | typedef struct |
40 | { | |
41 | sh_arg_type type; | |
42 | int reg; | |
43 | expressionS immediate; | |
44 | } | |
45 | sh_operand_info; | |
46 | ||
252b5132 RH |
47 | const char comment_chars[] = "!"; |
48 | const char line_separator_chars[] = ";"; | |
49 | const char line_comment_chars[] = "!#"; | |
50 | ||
51 | static void s_uses PARAMS ((int)); | |
52 | ||
53 | static void sh_count_relocs PARAMS ((bfd *, segT, PTR)); | |
54 | static void sh_frob_section PARAMS ((bfd *, segT, PTR)); | |
55 | ||
252b5132 | 56 | static void s_uacons PARAMS ((int)); |
d4845d57 | 57 | static sh_opcode_info *find_cooked_opcode PARAMS ((char **)); |
0d10e182 | 58 | static unsigned int assemble_ppi PARAMS ((char *, sh_opcode_info *)); |
e08ae979 | 59 | static void little PARAMS ((int)); |
05982cac | 60 | static void big PARAMS ((int)); |
e08ae979 | 61 | static int parse_reg PARAMS ((char *, int *, int *)); |
e08ae979 HPN |
62 | static char *parse_exp PARAMS ((char *, sh_operand_info *)); |
63 | static char *parse_at PARAMS ((char *, sh_operand_info *)); | |
64 | static void get_operand PARAMS ((char **, sh_operand_info *)); | |
65 | static char *get_operands | |
66 | PARAMS ((sh_opcode_info *, char *, sh_operand_info *)); | |
67 | static sh_opcode_info *get_specific | |
68 | PARAMS ((sh_opcode_info *, sh_operand_info *)); | |
69 | static void insert PARAMS ((char *, int, int, sh_operand_info *)); | |
70 | static void build_relax PARAMS ((sh_opcode_info *, sh_operand_info *)); | |
71 | static char *insert_loop_bounds PARAMS ((char *, sh_operand_info *)); | |
72 | static unsigned int build_Mytes | |
73 | PARAMS ((sh_opcode_info *, sh_operand_info *)); | |
28602ebf | 74 | static boolean sh_local_pcrel PARAMS ((fixS *fix)); |
252b5132 | 75 | |
a1cc9221 AO |
76 | #ifdef OBJ_ELF |
77 | static void sh_elf_cons PARAMS ((int)); | |
78 | ||
538cd60f AO |
79 | inline static int sh_PIC_related_p PARAMS ((symbolS *)); |
80 | static int sh_check_fixup PARAMS ((expressionS *, bfd_reloc_code_real_type *)); | |
81 | inline static char *sh_end_of_match PARAMS ((char *, char *)); | |
82 | ||
a1cc9221 AO |
83 | symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */ |
84 | #endif | |
85 | ||
05982cac HPN |
86 | static void |
87 | big (ignore) | |
88 | int ignore ATTRIBUTE_UNUSED; | |
89 | { | |
90 | if (! target_big_endian) | |
91 | as_bad (_("directive .big encountered when option -big required")); | |
92 | ||
93 | /* Stop further messages. */ | |
94 | target_big_endian = 1; | |
95 | } | |
252b5132 RH |
96 | |
97 | static void | |
98 | little (ignore) | |
43841e91 | 99 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 100 | { |
05982cac HPN |
101 | if (target_big_endian) |
102 | as_bad (_("directive .little encountered when option -little required")); | |
103 | ||
104 | /* Stop further messages. */ | |
252b5132 RH |
105 | target_big_endian = 0; |
106 | } | |
107 | ||
d4845d57 JR |
108 | /* This table describes all the machine specific pseudo-ops the assembler |
109 | has to support. The fields are: | |
110 | pseudo-op name without dot | |
111 | function to call to execute this pseudo-op | |
6b31947e | 112 | Integer arg to pass to the function. */ |
d4845d57 | 113 | |
252b5132 RH |
114 | const pseudo_typeS md_pseudo_table[] = |
115 | { | |
a1cc9221 AO |
116 | #ifdef OBJ_ELF |
117 | {"long", sh_elf_cons, 4}, | |
118 | {"int", sh_elf_cons, 4}, | |
119 | {"word", sh_elf_cons, 2}, | |
120 | {"short", sh_elf_cons, 2}, | |
121 | #else | |
252b5132 RH |
122 | {"int", cons, 4}, |
123 | {"word", cons, 2}, | |
a1cc9221 | 124 | #endif /* OBJ_ELF */ |
05982cac | 125 | {"big", big, 0}, |
252b5132 RH |
126 | {"form", listing_psize, 0}, |
127 | {"little", little, 0}, | |
128 | {"heading", listing_title, 0}, | |
129 | {"import", s_ignore, 0}, | |
130 | {"page", listing_eject, 0}, | |
131 | {"program", s_ignore, 0}, | |
132 | {"uses", s_uses, 0}, | |
133 | {"uaword", s_uacons, 2}, | |
134 | {"ualong", s_uacons, 4}, | |
de68de20 AO |
135 | {"uaquad", s_uacons, 8}, |
136 | {"2byte", s_uacons, 2}, | |
137 | {"4byte", s_uacons, 4}, | |
138 | {"8byte", s_uacons, 8}, | |
2bc0a128 | 139 | #ifdef BFD_ASSEMBLER |
9f1838ed | 140 | {"file", (void (*) PARAMS ((int))) dwarf2_directive_file, 0 }, |
de68de20 | 141 | {"loc", dwarf2_directive_loc, 0 }, |
2bc0a128 | 142 | #endif |
324bfcf3 AO |
143 | #ifdef HAVE_SH64 |
144 | {"mode", s_sh64_mode, 0 }, | |
145 | ||
146 | /* Have the old name too. */ | |
147 | {"isa", s_sh64_mode, 0 }, | |
148 | ||
149 | /* Assert that the right ABI is used. */ | |
150 | {"abi", s_sh64_abi, 0 }, | |
151 | ||
152 | { "vtable_inherit", sh64_vtable_inherit, 0 }, | |
153 | { "vtable_entry", sh64_vtable_entry, 0 }, | |
154 | #endif /* HAVE_SH64 */ | |
252b5132 RH |
155 | {0, 0, 0} |
156 | }; | |
157 | ||
158 | /*int md_reloc_size; */ | |
159 | ||
160 | int sh_relax; /* set if -relax seen */ | |
161 | ||
162 | /* Whether -small was seen. */ | |
163 | ||
164 | int sh_small; | |
165 | ||
d4845d57 JR |
166 | /* Whether -dsp was seen. */ |
167 | ||
168 | static int sh_dsp; | |
169 | ||
170 | /* The bit mask of architectures that could | |
171 | accomodate the insns seen so far. */ | |
172 | static int valid_arch; | |
173 | ||
252b5132 RH |
174 | const char EXP_CHARS[] = "eE"; |
175 | ||
6b31947e | 176 | /* Chars that mean this number is a floating point constant. */ |
252b5132 RH |
177 | /* As in 0f12.456 */ |
178 | /* or 0d1.2345e12 */ | |
179 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
180 | ||
181 | #define C(a,b) ENCODE_RELAX(a,b) | |
182 | ||
252b5132 RH |
183 | #define ENCODE_RELAX(what,length) (((what) << 4) + (length)) |
184 | #define GET_WHAT(x) ((x>>4)) | |
185 | ||
6b31947e | 186 | /* These are the three types of relaxable instrction. */ |
324bfcf3 AO |
187 | /* These are the types of relaxable instructions; except for END which is |
188 | a marker. */ | |
252b5132 RH |
189 | #define COND_JUMP 1 |
190 | #define COND_JUMP_DELAY 2 | |
191 | #define UNCOND_JUMP 3 | |
324bfcf3 AO |
192 | |
193 | #ifdef HAVE_SH64 | |
194 | ||
195 | /* A 16-bit (times four) pc-relative operand, at most expanded to 32 bits. */ | |
196 | #define SH64PCREL16_32 4 | |
197 | /* A 16-bit (times four) pc-relative operand, at most expanded to 64 bits. */ | |
198 | #define SH64PCREL16_64 5 | |
199 | ||
200 | /* Variants of the above for adjusting the insn to PTA or PTB according to | |
201 | the label. */ | |
202 | #define SH64PCREL16PT_32 6 | |
203 | #define SH64PCREL16PT_64 7 | |
204 | ||
205 | /* A MOVI expansion, expanding to at most 32 or 64 bits. */ | |
206 | #define MOVI_IMM_32 8 | |
207 | #define MOVI_IMM_32_PCREL 9 | |
208 | #define MOVI_IMM_64 10 | |
209 | #define MOVI_IMM_64_PCREL 11 | |
210 | #define END 12 | |
211 | ||
212 | #else /* HAVE_SH64 */ | |
213 | ||
252b5132 RH |
214 | #define END 4 |
215 | ||
324bfcf3 AO |
216 | #endif /* HAVE_SH64 */ |
217 | ||
252b5132 RH |
218 | #define UNDEF_DISP 0 |
219 | #define COND8 1 | |
220 | #define COND12 2 | |
221 | #define COND32 3 | |
252b5132 RH |
222 | #define UNDEF_WORD_DISP 4 |
223 | ||
224 | #define UNCOND12 1 | |
225 | #define UNCOND32 2 | |
226 | ||
324bfcf3 AO |
227 | #ifdef HAVE_SH64 |
228 | #define UNDEF_SH64PCREL 0 | |
229 | #define SH64PCREL16 1 | |
230 | #define SH64PCREL32 2 | |
231 | #define SH64PCREL48 3 | |
232 | #define SH64PCREL64 4 | |
233 | #define SH64PCRELPLT 5 | |
234 | ||
235 | #define UNDEF_MOVI 0 | |
236 | #define MOVI_16 1 | |
237 | #define MOVI_32 2 | |
238 | #define MOVI_48 3 | |
239 | #define MOVI_64 4 | |
240 | #define MOVI_PLT 5 | |
241 | #define MOVI_GOTOFF 6 | |
242 | #define MOVI_GOTPC 7 | |
243 | #endif /* HAVE_SH64 */ | |
244 | ||
252b5132 RH |
245 | /* Branch displacements are from the address of the branch plus |
246 | four, thus all minimum and maximum values have 4 added to them. */ | |
247 | #define COND8_F 258 | |
248 | #define COND8_M -252 | |
249 | #define COND8_LENGTH 2 | |
250 | ||
251 | /* There is one extra instruction before the branch, so we must add | |
252 | two more bytes to account for it. */ | |
253 | #define COND12_F 4100 | |
254 | #define COND12_M -4090 | |
255 | #define COND12_LENGTH 6 | |
256 | ||
257 | #define COND12_DELAY_LENGTH 4 | |
258 | ||
259 | /* ??? The minimum and maximum values are wrong, but this does not matter | |
260 | since this relocation type is not supported yet. */ | |
261 | #define COND32_F (1<<30) | |
262 | #define COND32_M -(1<<30) | |
263 | #define COND32_LENGTH 14 | |
264 | ||
265 | #define UNCOND12_F 4098 | |
266 | #define UNCOND12_M -4092 | |
267 | #define UNCOND12_LENGTH 2 | |
268 | ||
269 | /* ??? The minimum and maximum values are wrong, but this does not matter | |
270 | since this relocation type is not supported yet. */ | |
271 | #define UNCOND32_F (1<<30) | |
272 | #define UNCOND32_M -(1<<30) | |
273 | #define UNCOND32_LENGTH 14 | |
274 | ||
324bfcf3 AO |
275 | #ifdef HAVE_SH64 |
276 | /* The trivial expansion of a SH64PCREL16 relaxation is just a "PT label, | |
277 | TRd" as is the current insn, so no extra length. Note that the "reach" | |
278 | is calculated from the address *after* that insn, but the offset in the | |
279 | insn is calculated from the beginning of the insn. We also need to | |
280 | take into account the implicit 1 coded as the "A" in PTA when counting | |
281 | forward. If PTB reaches an odd address, we trap that as an error | |
282 | elsewhere, so we don't have to have different relaxation entries. We | |
283 | don't add a one to the negative range, since PTB would then have the | |
284 | farthest backward-reaching value skipped, not generated at relaxation. */ | |
285 | #define SH64PCREL16_F (32767 * 4 - 4 + 1) | |
286 | #define SH64PCREL16_M (-32768 * 4 - 4) | |
287 | #define SH64PCREL16_LENGTH 0 | |
288 | ||
289 | /* The next step is to change that PT insn into | |
290 | MOVI ((label - datalabel Ln) >> 16) & 65535, R25 | |
291 | SHORI (label - datalabel Ln) & 65535, R25 | |
292 | Ln: | |
293 | PTREL R25,TRd | |
294 | which means two extra insns, 8 extra bytes. This is the limit for the | |
295 | 32-bit ABI. | |
296 | ||
297 | The expressions look a bit bad since we have to adjust this to avoid overflow on a | |
298 | 32-bit host. */ | |
299 | #define SH64PCREL32_F ((((long) 1 << 30) - 1) * 2 + 1 - 4) | |
300 | #define SH64PCREL32_LENGTH (2 * 4) | |
301 | ||
302 | /* Similarly, we just change the MOVI and add a SHORI for the 48-bit | |
303 | expansion. */ | |
304 | #if BFD_HOST_64BIT_LONG | |
305 | /* The "reach" type is long, so we can only do this for a 64-bit-long | |
306 | host. */ | |
307 | #define SH64PCREL32_M (((long) -1 << 30) * 2 - 4) | |
308 | #define SH64PCREL48_F ((((long) 1 << 47) - 1) - 4) | |
309 | #define SH64PCREL48_M (((long) -1 << 47) - 4) | |
310 | #define SH64PCREL48_LENGTH (3 * 4) | |
311 | #else | |
312 | /* If the host does not have 64-bit longs, just make this state identical | |
313 | in reach to the 32-bit state. Note that we have a slightly incorrect | |
314 | reach, but the correct one above will overflow a 32-bit number. */ | |
315 | #define SH64PCREL32_M (((long) -1 << 30) * 2) | |
316 | #define SH64PCREL48_F SH64PCREL32_F | |
317 | #define SH64PCREL48_M SH64PCREL32_M | |
318 | #define SH64PCREL48_LENGTH (3 * 4) | |
319 | #endif /* BFD_HOST_64BIT_LONG */ | |
320 | ||
321 | /* And similarly for the 64-bit expansion; a MOVI + SHORI + SHORI + SHORI | |
322 | + PTREL sequence. */ | |
323 | #define SH64PCREL64_LENGTH (4 * 4) | |
324 | ||
325 | /* For MOVI, we make the MOVI + SHORI... expansion you can see in the | |
326 | SH64PCREL expansions. The PCREL one is similar, but the other has no | |
327 | pc-relative reach; it must be fully expanded in | |
328 | shmedia_md_estimate_size_before_relax. */ | |
329 | #define MOVI_16_LENGTH 0 | |
330 | #define MOVI_16_F (32767 - 4) | |
331 | #define MOVI_16_M (-32768 - 4) | |
332 | #define MOVI_32_LENGTH 4 | |
333 | #define MOVI_32_F ((((long) 1 << 30) - 1) * 2 + 1 - 4) | |
334 | #define MOVI_48_LENGTH 8 | |
335 | ||
336 | #if BFD_HOST_64BIT_LONG | |
337 | /* The "reach" type is long, so we can only do this for a 64-bit-long | |
338 | host. */ | |
339 | #define MOVI_32_M (((long) -1 << 30) * 2 - 4) | |
340 | #define MOVI_48_F ((((long) 1 << 47) - 1) - 4) | |
341 | #define MOVI_48_M (((long) -1 << 47) - 4) | |
342 | #else | |
343 | /* If the host does not have 64-bit longs, just make this state identical | |
344 | in reach to the 32-bit state. Note that we have a slightly incorrect | |
345 | reach, but the correct one above will overflow a 32-bit number. */ | |
346 | #define MOVI_32_M (((long) -1 << 30) * 2) | |
347 | #define MOVI_48_F MOVI_32_F | |
348 | #define MOVI_48_M MOVI_32_M | |
349 | #endif /* BFD_HOST_64BIT_LONG */ | |
350 | ||
351 | #define MOVI_64_LENGTH 12 | |
352 | #endif /* HAVE_SH64 */ | |
353 | ||
43841e91 NC |
354 | #define EMPTY { 0, 0, 0, 0 } |
355 | ||
252b5132 | 356 | const relax_typeS md_relax_table[C (END, 0)] = { |
43841e91 NC |
357 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, |
358 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
252b5132 | 359 | |
43841e91 | 360 | EMPTY, |
252b5132 RH |
361 | /* C (COND_JUMP, COND8) */ |
362 | { COND8_F, COND8_M, COND8_LENGTH, C (COND_JUMP, COND12) }, | |
363 | /* C (COND_JUMP, COND12) */ | |
364 | { COND12_F, COND12_M, COND12_LENGTH, C (COND_JUMP, COND32), }, | |
365 | /* C (COND_JUMP, COND32) */ | |
366 | { COND32_F, COND32_M, COND32_LENGTH, 0, }, | |
e66457fb AM |
367 | /* C (COND_JUMP, UNDEF_WORD_DISP) */ |
368 | { 0, 0, COND32_LENGTH, 0, }, | |
369 | EMPTY, EMPTY, EMPTY, | |
43841e91 | 370 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, |
252b5132 | 371 | |
43841e91 | 372 | EMPTY, |
252b5132 RH |
373 | /* C (COND_JUMP_DELAY, COND8) */ |
374 | { COND8_F, COND8_M, COND8_LENGTH, C (COND_JUMP_DELAY, COND12) }, | |
375 | /* C (COND_JUMP_DELAY, COND12) */ | |
376 | { COND12_F, COND12_M, COND12_DELAY_LENGTH, C (COND_JUMP_DELAY, COND32), }, | |
377 | /* C (COND_JUMP_DELAY, COND32) */ | |
378 | { COND32_F, COND32_M, COND32_LENGTH, 0, }, | |
e66457fb AM |
379 | /* C (COND_JUMP_DELAY, UNDEF_WORD_DISP) */ |
380 | { 0, 0, COND32_LENGTH, 0, }, | |
381 | EMPTY, EMPTY, EMPTY, | |
43841e91 | 382 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, |
252b5132 | 383 | |
43841e91 | 384 | EMPTY, |
252b5132 RH |
385 | /* C (UNCOND_JUMP, UNCOND12) */ |
386 | { UNCOND12_F, UNCOND12_M, UNCOND12_LENGTH, C (UNCOND_JUMP, UNCOND32), }, | |
387 | /* C (UNCOND_JUMP, UNCOND32) */ | |
388 | { UNCOND32_F, UNCOND32_M, UNCOND32_LENGTH, 0, }, | |
e66457fb AM |
389 | EMPTY, |
390 | /* C (UNCOND_JUMP, UNDEF_WORD_DISP) */ | |
391 | { 0, 0, UNCOND32_LENGTH, 0, }, | |
392 | EMPTY, EMPTY, EMPTY, | |
43841e91 | 393 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, |
324bfcf3 AO |
394 | |
395 | #ifdef HAVE_SH64 | |
396 | /* C (SH64PCREL16_32, SH64PCREL16) */ | |
397 | EMPTY, | |
398 | { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16_32, SH64PCREL32) }, | |
399 | /* C (SH64PCREL16_32, SH64PCREL32) */ | |
400 | { 0, 0, SH64PCREL32_LENGTH, 0 }, | |
401 | EMPTY, EMPTY, | |
402 | /* C (SH64PCREL16_32, SH64PCRELPLT) */ | |
403 | { 0, 0, SH64PCREL32_LENGTH, 0 }, | |
404 | EMPTY, EMPTY, | |
405 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
406 | ||
407 | /* C (SH64PCREL16_64, SH64PCREL16) */ | |
408 | EMPTY, | |
409 | { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16_64, SH64PCREL32) }, | |
410 | /* C (SH64PCREL16_64, SH64PCREL32) */ | |
411 | { SH64PCREL32_F, SH64PCREL32_M, SH64PCREL32_LENGTH, C (SH64PCREL16_64, SH64PCREL48) }, | |
412 | /* C (SH64PCREL16_64, SH64PCREL48) */ | |
413 | { SH64PCREL48_F, SH64PCREL48_M, SH64PCREL48_LENGTH, C (SH64PCREL16_64, SH64PCREL64) }, | |
414 | /* C (SH64PCREL16_64, SH64PCREL64) */ | |
415 | { 0, 0, SH64PCREL64_LENGTH, 0 }, | |
416 | /* C (SH64PCREL16_64, SH64PCRELPLT) */ | |
417 | { 0, 0, SH64PCREL64_LENGTH, 0 }, | |
418 | EMPTY, EMPTY, | |
419 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
420 | ||
421 | /* C (SH64PCREL16PT_32, SH64PCREL16) */ | |
422 | EMPTY, | |
423 | { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16PT_32, SH64PCREL32) }, | |
424 | /* C (SH64PCREL16PT_32, SH64PCREL32) */ | |
425 | { 0, 0, SH64PCREL32_LENGTH, 0 }, | |
426 | EMPTY, EMPTY, | |
427 | /* C (SH64PCREL16PT_32, SH64PCRELPLT) */ | |
428 | { 0, 0, SH64PCREL32_LENGTH, 0 }, | |
429 | EMPTY, EMPTY, | |
430 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
431 | ||
432 | /* C (SH64PCREL16PT_64, SH64PCREL16) */ | |
433 | EMPTY, | |
434 | { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16PT_64, SH64PCREL32) }, | |
435 | /* C (SH64PCREL16PT_64, SH64PCREL32) */ | |
436 | { SH64PCREL32_F, | |
5d6255fe | 437 | SH64PCREL32_M, |
324bfcf3 AO |
438 | SH64PCREL32_LENGTH, |
439 | C (SH64PCREL16PT_64, SH64PCREL48) }, | |
440 | /* C (SH64PCREL16PT_64, SH64PCREL48) */ | |
441 | { SH64PCREL48_F, SH64PCREL48_M, SH64PCREL48_LENGTH, C (SH64PCREL16PT_64, SH64PCREL64) }, | |
442 | /* C (SH64PCREL16PT_64, SH64PCREL64) */ | |
443 | { 0, 0, SH64PCREL64_LENGTH, 0 }, | |
444 | /* C (SH64PCREL16PT_64, SH64PCRELPLT) */ | |
445 | { 0, 0, SH64PCREL64_LENGTH, 0}, | |
446 | EMPTY, EMPTY, | |
447 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
448 | ||
449 | /* C (MOVI_IMM_32, UNDEF_MOVI) */ | |
450 | { 0, 0, MOVI_32_LENGTH, 0 }, | |
451 | /* C (MOVI_IMM_32, MOVI_16) */ | |
452 | { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_32, MOVI_32) }, | |
453 | /* C (MOVI_IMM_32, MOVI_32) */ | |
454 | { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, 0 }, | |
455 | EMPTY, EMPTY, EMPTY, | |
456 | /* C (MOVI_IMM_32, MOVI_GOTOFF) */ | |
457 | { 0, 0, MOVI_32_LENGTH, 0 }, | |
458 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
459 | ||
460 | /* C (MOVI_IMM_32_PCREL, MOVI_16) */ | |
461 | EMPTY, | |
462 | { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_32_PCREL, MOVI_32) }, | |
463 | /* C (MOVI_IMM_32_PCREL, MOVI_32) */ | |
464 | { 0, 0, MOVI_32_LENGTH, 0 }, | |
465 | EMPTY, EMPTY, | |
466 | /* C (MOVI_IMM_32_PCREL, MOVI_PLT) */ | |
467 | { 0, 0, MOVI_32_LENGTH, 0 }, | |
468 | EMPTY, | |
469 | /* C (MOVI_IMM_32_PCREL, MOVI_GOTPC) */ | |
470 | { 0, 0, MOVI_32_LENGTH, 0 }, | |
471 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
472 | ||
473 | /* C (MOVI_IMM_64, UNDEF_MOVI) */ | |
474 | { 0, 0, MOVI_64_LENGTH, 0 }, | |
475 | /* C (MOVI_IMM_64, MOVI_16) */ | |
476 | { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_64, MOVI_32) }, | |
477 | /* C (MOVI_IMM_64, MOVI_32) */ | |
478 | { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, C (MOVI_IMM_64, MOVI_48) }, | |
479 | /* C (MOVI_IMM_64, MOVI_48) */ | |
480 | { MOVI_48_F, MOVI_48_M, MOVI_48_LENGTH, C (MOVI_IMM_64, MOVI_64) }, | |
481 | /* C (MOVI_IMM_64, MOVI_64) */ | |
482 | { 0, 0, MOVI_64_LENGTH, 0 }, | |
483 | EMPTY, | |
484 | /* C (MOVI_IMM_64, MOVI_GOTOFF) */ | |
485 | { 0, 0, MOVI_64_LENGTH, 0 }, | |
486 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
487 | ||
488 | /* C (MOVI_IMM_64_PCREL, MOVI_16) */ | |
489 | EMPTY, | |
490 | { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_32) }, | |
491 | /* C (MOVI_IMM_64_PCREL, MOVI_32) */ | |
492 | { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_48) }, | |
493 | /* C (MOVI_IMM_64_PCREL, MOVI_48) */ | |
494 | { MOVI_48_F, MOVI_48_M, MOVI_48_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_64) }, | |
495 | /* C (MOVI_IMM_64_PCREL, MOVI_64) */ | |
496 | { 0, 0, MOVI_64_LENGTH, 0 }, | |
497 | /* C (MOVI_IMM_64_PCREL, MOVI_PLT) */ | |
498 | { 0, 0, MOVI_64_LENGTH, 0 }, | |
499 | EMPTY, | |
500 | /* C (MOVI_IMM_64_PCREL, MOVI_GOTPC) */ | |
501 | { 0, 0, MOVI_64_LENGTH, 0 }, | |
502 | EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, | |
503 | ||
504 | #endif /* HAVE_SH64 */ | |
505 | ||
252b5132 RH |
506 | }; |
507 | ||
43841e91 NC |
508 | #undef EMPTY |
509 | ||
252b5132 RH |
510 | static struct hash_control *opcode_hash_control; /* Opcode mnemonics */ |
511 | ||
a1cc9221 AO |
512 | \f |
513 | #ifdef OBJ_ELF | |
538cd60f AO |
514 | /* Determinet whether the symbol needs any kind of PIC relocation. */ |
515 | ||
516 | inline static int | |
517 | sh_PIC_related_p (sym) | |
518 | symbolS *sym; | |
a1cc9221 | 519 | { |
538cd60f | 520 | expressionS *exp; |
a1cc9221 | 521 | |
538cd60f AO |
522 | if (! sym) |
523 | return 0; | |
524 | ||
525 | if (sym == GOT_symbol) | |
526 | return 1; | |
527 | ||
324bfcf3 AO |
528 | #ifdef HAVE_SH64 |
529 | if (sh_PIC_related_p (*symbol_get_tc (sym))) | |
530 | return 1; | |
531 | #endif | |
532 | ||
538cd60f AO |
533 | exp = symbol_get_value_expression (sym); |
534 | ||
535 | return (exp->X_op == O_PIC_reloc | |
536 | || sh_PIC_related_p (exp->X_add_symbol) | |
537 | || sh_PIC_related_p (exp->X_op_symbol)); | |
538 | } | |
539 | ||
540 | /* Determine the relocation type to be used to represent the | |
541 | expression, that may be rearranged. */ | |
542 | ||
543 | static int | |
544 | sh_check_fixup (main_exp, r_type_p) | |
545 | expressionS *main_exp; | |
546 | bfd_reloc_code_real_type *r_type_p; | |
547 | { | |
548 | expressionS *exp = main_exp; | |
549 | ||
550 | /* This is here for backward-compatibility only. GCC used to generated: | |
551 | ||
552 | f@PLT + . - (.LPCS# + 2) | |
553 | ||
554 | but we'd rather be able to handle this as a PIC-related reference | |
555 | plus/minus a symbol. However, gas' parser gives us: | |
556 | ||
557 | O_subtract (O_add (f@PLT, .), .LPCS#+2) | |
5d6255fe | 558 | |
538cd60f AO |
559 | so we attempt to transform this into: |
560 | ||
561 | O_subtract (f@PLT, O_subtract (.LPCS#+2, .)) | |
562 | ||
5d6255fe | 563 | which we can handle simply below. */ |
538cd60f AO |
564 | if (exp->X_op == O_subtract) |
565 | { | |
566 | if (sh_PIC_related_p (exp->X_op_symbol)) | |
567 | return 1; | |
568 | ||
569 | exp = symbol_get_value_expression (exp->X_add_symbol); | |
570 | ||
571 | if (exp && sh_PIC_related_p (exp->X_op_symbol)) | |
572 | return 1; | |
573 | ||
574 | if (exp && exp->X_op == O_add | |
575 | && sh_PIC_related_p (exp->X_add_symbol)) | |
576 | { | |
577 | symbolS *sym = exp->X_add_symbol; | |
578 | ||
579 | exp->X_op = O_subtract; | |
580 | exp->X_add_symbol = main_exp->X_op_symbol; | |
581 | ||
582 | main_exp->X_op_symbol = main_exp->X_add_symbol; | |
583 | main_exp->X_add_symbol = sym; | |
584 | ||
585 | main_exp->X_add_number += exp->X_add_number; | |
586 | exp->X_add_number = 0; | |
587 | } | |
588 | ||
589 | exp = main_exp; | |
590 | } | |
591 | else if (exp->X_op == O_add && sh_PIC_related_p (exp->X_op_symbol)) | |
592 | return 1; | |
593 | ||
594 | if (exp->X_op == O_symbol || exp->X_op == O_add || exp->X_op == O_subtract) | |
595 | { | |
324bfcf3 AO |
596 | #ifdef HAVE_SH64 |
597 | if (exp->X_add_symbol | |
598 | && (exp->X_add_symbol == GOT_symbol | |
599 | || (GOT_symbol | |
600 | && *symbol_get_tc (exp->X_add_symbol) == GOT_symbol))) | |
601 | { | |
602 | switch (*r_type_p) | |
603 | { | |
604 | case BFD_RELOC_SH_IMM_LOW16: | |
605 | *r_type_p = BFD_RELOC_SH_GOTPC_LOW16; | |
606 | break; | |
607 | ||
608 | case BFD_RELOC_SH_IMM_MEDLOW16: | |
609 | *r_type_p = BFD_RELOC_SH_GOTPC_MEDLOW16; | |
610 | break; | |
611 | ||
612 | case BFD_RELOC_SH_IMM_MEDHI16: | |
613 | *r_type_p = BFD_RELOC_SH_GOTPC_MEDHI16; | |
614 | break; | |
615 | ||
616 | case BFD_RELOC_SH_IMM_HI16: | |
617 | *r_type_p = BFD_RELOC_SH_GOTPC_HI16; | |
618 | break; | |
619 | ||
620 | case BFD_RELOC_NONE: | |
621 | case BFD_RELOC_UNUSED: | |
622 | *r_type_p = BFD_RELOC_SH_GOTPC; | |
623 | break; | |
5d6255fe | 624 | |
324bfcf3 AO |
625 | default: |
626 | abort (); | |
627 | } | |
628 | return 0; | |
629 | } | |
630 | #else | |
538cd60f AO |
631 | if (exp->X_add_symbol && exp->X_add_symbol == GOT_symbol) |
632 | { | |
633 | *r_type_p = BFD_RELOC_SH_GOTPC; | |
634 | return 0; | |
635 | } | |
324bfcf3 | 636 | #endif |
538cd60f AO |
637 | exp = symbol_get_value_expression (exp->X_add_symbol); |
638 | if (! exp) | |
639 | return 0; | |
640 | } | |
641 | ||
642 | if (exp->X_op == O_PIC_reloc) | |
643 | { | |
324bfcf3 AO |
644 | #ifdef HAVE_SH64 |
645 | switch (*r_type_p) | |
646 | { | |
647 | case BFD_RELOC_NONE: | |
648 | case BFD_RELOC_UNUSED: | |
649 | *r_type_p = exp->X_md; | |
650 | break; | |
651 | ||
652 | case BFD_RELOC_SH_IMM_LOW16: | |
653 | switch (exp->X_md) | |
654 | { | |
655 | case BFD_RELOC_32_GOTOFF: | |
656 | *r_type_p = BFD_RELOC_SH_GOTOFF_LOW16; | |
657 | break; | |
5d6255fe | 658 | |
324bfcf3 AO |
659 | case BFD_RELOC_SH_GOTPLT32: |
660 | *r_type_p = BFD_RELOC_SH_GOTPLT_LOW16; | |
661 | break; | |
5d6255fe | 662 | |
324bfcf3 AO |
663 | case BFD_RELOC_32_GOT_PCREL: |
664 | *r_type_p = BFD_RELOC_SH_GOT_LOW16; | |
665 | break; | |
5d6255fe | 666 | |
324bfcf3 AO |
667 | case BFD_RELOC_32_PLT_PCREL: |
668 | *r_type_p = BFD_RELOC_SH_PLT_LOW16; | |
669 | break; | |
670 | ||
671 | default: | |
672 | abort (); | |
673 | } | |
674 | break; | |
675 | ||
676 | case BFD_RELOC_SH_IMM_MEDLOW16: | |
677 | switch (exp->X_md) | |
678 | { | |
679 | case BFD_RELOC_32_GOTOFF: | |
680 | *r_type_p = BFD_RELOC_SH_GOTOFF_MEDLOW16; | |
681 | break; | |
5d6255fe | 682 | |
324bfcf3 AO |
683 | case BFD_RELOC_SH_GOTPLT32: |
684 | *r_type_p = BFD_RELOC_SH_GOTPLT_MEDLOW16; | |
685 | break; | |
5d6255fe | 686 | |
324bfcf3 AO |
687 | case BFD_RELOC_32_GOT_PCREL: |
688 | *r_type_p = BFD_RELOC_SH_GOT_MEDLOW16; | |
689 | break; | |
5d6255fe | 690 | |
324bfcf3 AO |
691 | case BFD_RELOC_32_PLT_PCREL: |
692 | *r_type_p = BFD_RELOC_SH_PLT_MEDLOW16; | |
693 | break; | |
694 | ||
695 | default: | |
696 | abort (); | |
697 | } | |
698 | break; | |
699 | ||
700 | case BFD_RELOC_SH_IMM_MEDHI16: | |
701 | switch (exp->X_md) | |
702 | { | |
703 | case BFD_RELOC_32_GOTOFF: | |
704 | *r_type_p = BFD_RELOC_SH_GOTOFF_MEDHI16; | |
705 | break; | |
5d6255fe | 706 | |
324bfcf3 AO |
707 | case BFD_RELOC_SH_GOTPLT32: |
708 | *r_type_p = BFD_RELOC_SH_GOTPLT_MEDHI16; | |
709 | break; | |
5d6255fe | 710 | |
324bfcf3 AO |
711 | case BFD_RELOC_32_GOT_PCREL: |
712 | *r_type_p = BFD_RELOC_SH_GOT_MEDHI16; | |
713 | break; | |
5d6255fe | 714 | |
324bfcf3 AO |
715 | case BFD_RELOC_32_PLT_PCREL: |
716 | *r_type_p = BFD_RELOC_SH_PLT_MEDHI16; | |
717 | break; | |
718 | ||
719 | default: | |
720 | abort (); | |
721 | } | |
722 | break; | |
723 | ||
724 | case BFD_RELOC_SH_IMM_HI16: | |
725 | switch (exp->X_md) | |
726 | { | |
727 | case BFD_RELOC_32_GOTOFF: | |
728 | *r_type_p = BFD_RELOC_SH_GOTOFF_HI16; | |
729 | break; | |
5d6255fe | 730 | |
324bfcf3 AO |
731 | case BFD_RELOC_SH_GOTPLT32: |
732 | *r_type_p = BFD_RELOC_SH_GOTPLT_HI16; | |
733 | break; | |
5d6255fe | 734 | |
324bfcf3 AO |
735 | case BFD_RELOC_32_GOT_PCREL: |
736 | *r_type_p = BFD_RELOC_SH_GOT_HI16; | |
737 | break; | |
5d6255fe | 738 | |
324bfcf3 AO |
739 | case BFD_RELOC_32_PLT_PCREL: |
740 | *r_type_p = BFD_RELOC_SH_PLT_HI16; | |
741 | break; | |
742 | ||
743 | default: | |
744 | abort (); | |
745 | } | |
746 | break; | |
747 | ||
748 | default: | |
749 | abort (); | |
750 | } | |
751 | #else | |
538cd60f | 752 | *r_type_p = exp->X_md; |
324bfcf3 | 753 | #endif |
538cd60f AO |
754 | if (exp == main_exp) |
755 | exp->X_op = O_symbol; | |
756 | else | |
757 | { | |
758 | main_exp->X_add_symbol = exp->X_add_symbol; | |
759 | main_exp->X_add_number += exp->X_add_number; | |
760 | } | |
761 | } | |
762 | else | |
763 | return (sh_PIC_related_p (exp->X_add_symbol) | |
764 | || sh_PIC_related_p (exp->X_op_symbol)); | |
765 | ||
766 | return 0; | |
767 | } | |
768 | ||
769 | /* Add expression EXP of SIZE bytes to offset OFF of fragment FRAG. */ | |
770 | ||
771 | void | |
772 | sh_cons_fix_new (frag, off, size, exp) | |
773 | fragS *frag; | |
774 | int off, size; | |
775 | expressionS *exp; | |
776 | { | |
777 | bfd_reloc_code_real_type r_type = BFD_RELOC_UNUSED; | |
778 | ||
779 | if (sh_check_fixup (exp, &r_type)) | |
780 | as_bad (_("Invalid PIC expression.")); | |
781 | ||
782 | if (r_type == BFD_RELOC_UNUSED) | |
783 | switch (size) | |
a1cc9221 | 784 | { |
538cd60f AO |
785 | case 1: |
786 | r_type = BFD_RELOC_8; | |
787 | break; | |
a1cc9221 | 788 | |
538cd60f AO |
789 | case 2: |
790 | r_type = BFD_RELOC_16; | |
791 | break; | |
792 | ||
793 | case 4: | |
794 | r_type = BFD_RELOC_32; | |
795 | break; | |
a1cc9221 | 796 | |
324bfcf3 AO |
797 | #ifdef HAVE_SH64 |
798 | case 8: | |
799 | r_type = BFD_RELOC_64; | |
800 | break; | |
801 | #endif | |
802 | ||
538cd60f AO |
803 | default: |
804 | goto error; | |
805 | } | |
806 | else if (size != 4) | |
807 | { | |
808 | error: | |
809 | as_bad (_("unsupported BFD relocation size %u"), size); | |
810 | r_type = BFD_RELOC_UNUSED; | |
811 | } | |
5d6255fe | 812 | |
538cd60f | 813 | fix_new_exp (frag, off, size, exp, 0, r_type); |
a1cc9221 AO |
814 | } |
815 | ||
816 | /* The regular cons() function, that reads constants, doesn't support | |
817 | suffixes such as @GOT, @GOTOFF and @PLT, that generate | |
818 | machine-specific relocation types. So we must define it here. */ | |
819 | /* Clobbers input_line_pointer, checks end-of-line. */ | |
820 | static void | |
821 | sh_elf_cons (nbytes) | |
822 | register int nbytes; /* 1=.byte, 2=.word, 4=.long */ | |
823 | { | |
538cd60f | 824 | expressionS exp; |
a1cc9221 | 825 | |
324bfcf3 AO |
826 | #ifdef HAVE_SH64 |
827 | ||
828 | /* Update existing range to include a previous insn, if there was one. */ | |
829 | sh64_update_contents_mark (true); | |
830 | ||
831 | /* We need to make sure the contents type is set to data. */ | |
832 | sh64_flag_output (); | |
833 | ||
834 | #endif /* HAVE_SH64 */ | |
835 | ||
a1cc9221 AO |
836 | if (is_it_end_of_statement ()) |
837 | { | |
838 | demand_empty_rest_of_line (); | |
839 | return; | |
840 | } | |
841 | ||
842 | do | |
843 | { | |
844 | expression (&exp); | |
538cd60f | 845 | emit_expr (&exp, (unsigned int) nbytes); |
a1cc9221 AO |
846 | } |
847 | while (*input_line_pointer++ == ','); | |
848 | ||
81d4177b | 849 | input_line_pointer--; /* Put terminator back into stream. */ |
a1cc9221 AO |
850 | if (*input_line_pointer == '#' || *input_line_pointer == '!') |
851 | { | |
dda5ecfc | 852 | while (! is_end_of_line[(unsigned char) *input_line_pointer++]); |
a1cc9221 AO |
853 | } |
854 | else | |
855 | demand_empty_rest_of_line (); | |
856 | } | |
857 | #endif /* OBJ_ELF */ | |
858 | ||
859 | \f | |
6b31947e NC |
860 | /* This function is called once, at assembler startup time. This should |
861 | set up all the tables, etc that the MD part of the assembler needs. */ | |
252b5132 RH |
862 | |
863 | void | |
864 | md_begin () | |
865 | { | |
5ff37431 | 866 | const sh_opcode_info *opcode; |
252b5132 | 867 | char *prev_name = ""; |
d4845d57 | 868 | int target_arch; |
252b5132 | 869 | |
d4845d57 JR |
870 | target_arch = arch_sh1_up & ~(sh_dsp ? arch_sh3e_up : arch_sh_dsp_up); |
871 | valid_arch = target_arch; | |
872 | ||
324bfcf3 AO |
873 | #ifdef HAVE_SH64 |
874 | shmedia_md_begin (); | |
875 | #endif | |
876 | ||
252b5132 RH |
877 | opcode_hash_control = hash_new (); |
878 | ||
6b31947e | 879 | /* Insert unique names into hash table. */ |
252b5132 RH |
880 | for (opcode = sh_table; opcode->name; opcode++) |
881 | { | |
5ff37431 | 882 | if (strcmp (prev_name, opcode->name) != 0) |
252b5132 | 883 | { |
a37c8f88 JR |
884 | if (! (opcode->arch & target_arch)) |
885 | continue; | |
252b5132 RH |
886 | prev_name = opcode->name; |
887 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
888 | } | |
252b5132 RH |
889 | } |
890 | } | |
891 | ||
892 | static int reg_m; | |
893 | static int reg_n; | |
d4845d57 JR |
894 | static int reg_x, reg_y; |
895 | static int reg_efg; | |
252b5132 RH |
896 | static int reg_b; |
897 | ||
3882b010 | 898 | #define IDENT_CHAR(c) (ISALNUM (c) || (c) == '_') |
dead1419 | 899 | |
6b31947e NC |
900 | /* Try to parse a reg name. Return the number of chars consumed. */ |
901 | ||
252b5132 RH |
902 | static int |
903 | parse_reg (src, mode, reg) | |
904 | char *src; | |
905 | int *mode; | |
906 | int *reg; | |
907 | { | |
3882b010 L |
908 | char l0 = TOLOWER (src[0]); |
909 | char l1 = l0 ? TOLOWER (src[1]) : 0; | |
e46fee70 | 910 | |
dead1419 | 911 | /* We use ! IDENT_CHAR for the next character after the register name, to |
252b5132 | 912 | make sure that we won't accidentally recognize a symbol name such as |
dead1419 | 913 | 'sram' or sr_ram as being a reference to the register 'sr'. */ |
252b5132 | 914 | |
e46fee70 | 915 | if (l0 == 'r') |
252b5132 | 916 | { |
e46fee70 | 917 | if (l1 == '1') |
d4845d57 JR |
918 | { |
919 | if (src[2] >= '0' && src[2] <= '5' | |
dead1419 | 920 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
921 | { |
922 | *mode = A_REG_N; | |
923 | *reg = 10 + src[2] - '0'; | |
924 | return 3; | |
925 | } | |
926 | } | |
e46fee70 | 927 | if (l1 >= '0' && l1 <= '9' |
dead1419 | 928 | && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
929 | { |
930 | *mode = A_REG_N; | |
e46fee70 | 931 | *reg = (l1 - '0'); |
d4845d57 JR |
932 | return 2; |
933 | } | |
e46fee70 | 934 | if (l1 >= '0' && l1 <= '7' && strncasecmp (&src[2], "_bank", 5) == 0 |
dead1419 JR |
935 | && ! IDENT_CHAR ((unsigned char) src[7])) |
936 | { | |
937 | *mode = A_REG_B; | |
e46fee70 | 938 | *reg = (l1 - '0'); |
dead1419 JR |
939 | return 7; |
940 | } | |
d4845d57 | 941 | |
e46fee70 | 942 | if (l1 == 'e' && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
943 | { |
944 | *mode = A_RE; | |
945 | return 2; | |
946 | } | |
e46fee70 | 947 | if (l1 == 's' && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
948 | { |
949 | *mode = A_RS; | |
950 | return 2; | |
951 | } | |
252b5132 RH |
952 | } |
953 | ||
e46fee70 | 954 | if (l0 == 'a') |
252b5132 | 955 | { |
e46fee70 | 956 | if (l1 == '0') |
d4845d57 | 957 | { |
dead1419 | 958 | if (! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
959 | { |
960 | *mode = DSP_REG_N; | |
961 | *reg = A_A0_NUM; | |
962 | return 2; | |
963 | } | |
3882b010 | 964 | if (TOLOWER (src[2]) == 'g' && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
965 | { |
966 | *mode = DSP_REG_N; | |
967 | *reg = A_A0G_NUM; | |
968 | return 3; | |
969 | } | |
970 | } | |
e46fee70 | 971 | if (l1 == '1') |
252b5132 | 972 | { |
dead1419 | 973 | if (! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 | 974 | { |
d4845d57 JR |
975 | *mode = DSP_REG_N; |
976 | *reg = A_A1_NUM; | |
977 | return 2; | |
978 | } | |
3882b010 | 979 | if (TOLOWER (src[2]) == 'g' && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
980 | { |
981 | *mode = DSP_REG_N; | |
982 | *reg = A_A1G_NUM; | |
252b5132 RH |
983 | return 3; |
984 | } | |
985 | } | |
d4845d57 | 986 | |
e46fee70 | 987 | if (l1 == 'x' && src[2] >= '0' && src[2] <= '1' |
dead1419 | 988 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
989 | { |
990 | *mode = A_REG_N; | |
e46fee70 | 991 | *reg = 4 + (l1 - '0'); |
d4845d57 JR |
992 | return 3; |
993 | } | |
e46fee70 | 994 | if (l1 == 'y' && src[2] >= '0' && src[2] <= '1' |
dead1419 | 995 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
996 | { |
997 | *mode = A_REG_N; | |
e46fee70 | 998 | *reg = 6 + (l1 - '0'); |
d4845d57 JR |
999 | return 3; |
1000 | } | |
e46fee70 | 1001 | if (l1 == 's' && src[2] >= '0' && src[2] <= '3' |
dead1419 | 1002 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 | 1003 | { |
e46fee70 | 1004 | int n = l1 - '0'; |
d4845d57 JR |
1005 | |
1006 | *mode = A_REG_N; | |
1007 | *reg = n | ((~n & 2) << 1); | |
1008 | return 3; | |
1009 | } | |
1010 | } | |
1011 | ||
912a07db | 1012 | if (l0 == 'i' && l1 && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 | 1013 | { |
e46fee70 | 1014 | if (l1 == 's') |
d4845d57 JR |
1015 | { |
1016 | *mode = A_REG_N; | |
1017 | *reg = 8; | |
252b5132 RH |
1018 | return 2; |
1019 | } | |
e46fee70 | 1020 | if (l1 == 'x') |
d4845d57 JR |
1021 | { |
1022 | *mode = A_REG_N; | |
1023 | *reg = 8; | |
1024 | return 2; | |
1025 | } | |
e46fee70 | 1026 | if (l1 == 'y') |
d4845d57 JR |
1027 | { |
1028 | *mode = A_REG_N; | |
1029 | *reg = 9; | |
1030 | return 2; | |
1031 | } | |
1032 | } | |
1033 | ||
e46fee70 | 1034 | if (l0 == 'x' && l1 >= '0' && l1 <= '1' |
dead1419 | 1035 | && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
1036 | { |
1037 | *mode = DSP_REG_N; | |
e46fee70 | 1038 | *reg = A_X0_NUM + l1 - '0'; |
d4845d57 JR |
1039 | return 2; |
1040 | } | |
1041 | ||
e46fee70 | 1042 | if (l0 == 'y' && l1 >= '0' && l1 <= '1' |
dead1419 | 1043 | && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
1044 | { |
1045 | *mode = DSP_REG_N; | |
e46fee70 | 1046 | *reg = A_Y0_NUM + l1 - '0'; |
d4845d57 JR |
1047 | return 2; |
1048 | } | |
1049 | ||
e46fee70 | 1050 | if (l0 == 'm' && l1 >= '0' && l1 <= '1' |
dead1419 | 1051 | && ! IDENT_CHAR ((unsigned char) src[2])) |
d4845d57 JR |
1052 | { |
1053 | *mode = DSP_REG_N; | |
e46fee70 | 1054 | *reg = l1 == '0' ? A_M0_NUM : A_M1_NUM; |
d4845d57 | 1055 | return 2; |
252b5132 RH |
1056 | } |
1057 | ||
e46fee70 HPN |
1058 | if (l0 == 's' |
1059 | && l1 == 's' | |
3882b010 | 1060 | && TOLOWER (src[2]) == 'r' && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1061 | { |
1062 | *mode = A_SSR; | |
1063 | return 3; | |
1064 | } | |
1065 | ||
3882b010 | 1066 | if (l0 == 's' && l1 == 'p' && TOLOWER (src[2]) == 'c' |
dead1419 | 1067 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1068 | { |
1069 | *mode = A_SPC; | |
1070 | return 3; | |
1071 | } | |
1072 | ||
3882b010 | 1073 | if (l0 == 's' && l1 == 'g' && TOLOWER (src[2]) == 'r' |
dead1419 | 1074 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1075 | { |
1076 | *mode = A_SGR; | |
1077 | return 3; | |
1078 | } | |
1079 | ||
3882b010 | 1080 | if (l0 == 'd' && l1 == 's' && TOLOWER (src[2]) == 'r' |
dead1419 | 1081 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
1082 | { |
1083 | *mode = A_DSR; | |
1084 | return 3; | |
1085 | } | |
1086 | ||
3882b010 | 1087 | if (l0 == 'd' && l1 == 'b' && TOLOWER (src[2]) == 'r' |
dead1419 | 1088 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1089 | { |
1090 | *mode = A_DBR; | |
1091 | return 3; | |
1092 | } | |
1093 | ||
e46fee70 | 1094 | if (l0 == 's' && l1 == 'r' && ! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 RH |
1095 | { |
1096 | *mode = A_SR; | |
1097 | return 2; | |
1098 | } | |
1099 | ||
e46fee70 | 1100 | if (l0 == 's' && l1 == 'p' && ! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 RH |
1101 | { |
1102 | *mode = A_REG_N; | |
1103 | *reg = 15; | |
1104 | return 2; | |
1105 | } | |
1106 | ||
e46fee70 | 1107 | if (l0 == 'p' && l1 == 'r' && ! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 RH |
1108 | { |
1109 | *mode = A_PR; | |
1110 | return 2; | |
1111 | } | |
e46fee70 | 1112 | if (l0 == 'p' && l1 == 'c' && ! IDENT_CHAR ((unsigned char) src[2])) |
252b5132 | 1113 | { |
015551fc JR |
1114 | /* Don't use A_DISP_PC here - that would accept stuff like 'mova pc,r0' |
1115 | and use an uninitialized immediate. */ | |
1116 | *mode = A_PC; | |
252b5132 RH |
1117 | return 2; |
1118 | } | |
3882b010 | 1119 | if (l0 == 'g' && l1 == 'b' && TOLOWER (src[2]) == 'r' |
dead1419 | 1120 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1121 | { |
1122 | *mode = A_GBR; | |
1123 | return 3; | |
1124 | } | |
3882b010 | 1125 | if (l0 == 'v' && l1 == 'b' && TOLOWER (src[2]) == 'r' |
dead1419 | 1126 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1127 | { |
1128 | *mode = A_VBR; | |
1129 | return 3; | |
1130 | } | |
1131 | ||
3882b010 | 1132 | if (l0 == 'm' && l1 == 'a' && TOLOWER (src[2]) == 'c' |
dead1419 | 1133 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 | 1134 | { |
3882b010 | 1135 | if (TOLOWER (src[3]) == 'l') |
252b5132 RH |
1136 | { |
1137 | *mode = A_MACL; | |
1138 | return 4; | |
1139 | } | |
3882b010 | 1140 | if (TOLOWER (src[3]) == 'h') |
252b5132 RH |
1141 | { |
1142 | *mode = A_MACH; | |
1143 | return 4; | |
1144 | } | |
1145 | } | |
3882b010 | 1146 | if (l0 == 'm' && l1 == 'o' && TOLOWER (src[2]) == 'd' |
912a07db | 1147 | && ! IDENT_CHAR ((unsigned char) src[3])) |
d4845d57 JR |
1148 | { |
1149 | *mode = A_MOD; | |
1150 | return 3; | |
1151 | } | |
e46fee70 | 1152 | if (l0 == 'f' && l1 == 'r') |
252b5132 RH |
1153 | { |
1154 | if (src[2] == '1') | |
1155 | { | |
1156 | if (src[3] >= '0' && src[3] <= '5' | |
dead1419 | 1157 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
1158 | { |
1159 | *mode = F_REG_N; | |
1160 | *reg = 10 + src[3] - '0'; | |
1161 | return 4; | |
1162 | } | |
1163 | } | |
1164 | if (src[2] >= '0' && src[2] <= '9' | |
dead1419 | 1165 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1166 | { |
1167 | *mode = F_REG_N; | |
1168 | *reg = (src[2] - '0'); | |
1169 | return 3; | |
1170 | } | |
1171 | } | |
e46fee70 | 1172 | if (l0 == 'd' && l1 == 'r') |
252b5132 RH |
1173 | { |
1174 | if (src[2] == '1') | |
1175 | { | |
1176 | if (src[3] >= '0' && src[3] <= '4' && ! ((src[3] - '0') & 1) | |
dead1419 | 1177 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
1178 | { |
1179 | *mode = D_REG_N; | |
1180 | *reg = 10 + src[3] - '0'; | |
1181 | return 4; | |
1182 | } | |
1183 | } | |
1184 | if (src[2] >= '0' && src[2] <= '8' && ! ((src[2] - '0') & 1) | |
dead1419 | 1185 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1186 | { |
1187 | *mode = D_REG_N; | |
1188 | *reg = (src[2] - '0'); | |
1189 | return 3; | |
1190 | } | |
1191 | } | |
e46fee70 | 1192 | if (l0 == 'x' && l1 == 'd') |
252b5132 RH |
1193 | { |
1194 | if (src[2] == '1') | |
1195 | { | |
1196 | if (src[3] >= '0' && src[3] <= '4' && ! ((src[3] - '0') & 1) | |
dead1419 | 1197 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
1198 | { |
1199 | *mode = X_REG_N; | |
1200 | *reg = 11 + src[3] - '0'; | |
1201 | return 4; | |
1202 | } | |
1203 | } | |
1204 | if (src[2] >= '0' && src[2] <= '8' && ! ((src[2] - '0') & 1) | |
dead1419 | 1205 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1206 | { |
1207 | *mode = X_REG_N; | |
1208 | *reg = (src[2] - '0') + 1; | |
1209 | return 3; | |
1210 | } | |
1211 | } | |
e46fee70 | 1212 | if (l0 == 'f' && l1 == 'v') |
252b5132 | 1213 | { |
dead1419 | 1214 | if (src[2] == '1'&& src[3] == '2' && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
1215 | { |
1216 | *mode = V_REG_N; | |
1217 | *reg = 12; | |
1218 | return 4; | |
1219 | } | |
1220 | if ((src[2] == '0' || src[2] == '4' || src[2] == '8') | |
dead1419 | 1221 | && ! IDENT_CHAR ((unsigned char) src[3])) |
252b5132 RH |
1222 | { |
1223 | *mode = V_REG_N; | |
1224 | *reg = (src[2] - '0'); | |
1225 | return 3; | |
1226 | } | |
1227 | } | |
3882b010 L |
1228 | if (l0 == 'f' && l1 == 'p' && TOLOWER (src[2]) == 'u' |
1229 | && TOLOWER (src[3]) == 'l' | |
dead1419 | 1230 | && ! IDENT_CHAR ((unsigned char) src[4])) |
252b5132 RH |
1231 | { |
1232 | *mode = FPUL_N; | |
1233 | return 4; | |
1234 | } | |
1235 | ||
3882b010 L |
1236 | if (l0 == 'f' && l1 == 'p' && TOLOWER (src[2]) == 's' |
1237 | && TOLOWER (src[3]) == 'c' | |
1238 | && TOLOWER (src[4]) == 'r' && ! IDENT_CHAR ((unsigned char) src[5])) | |
252b5132 RH |
1239 | { |
1240 | *mode = FPSCR_N; | |
1241 | return 5; | |
1242 | } | |
1243 | ||
3882b010 L |
1244 | if (l0 == 'x' && l1 == 'm' && TOLOWER (src[2]) == 't' |
1245 | && TOLOWER (src[3]) == 'r' | |
1246 | && TOLOWER (src[4]) == 'x' && ! IDENT_CHAR ((unsigned char) src[5])) | |
252b5132 RH |
1247 | { |
1248 | *mode = XMTRX_M4; | |
1249 | return 5; | |
1250 | } | |
1251 | ||
1252 | return 0; | |
1253 | } | |
1254 | ||
c4aa876b | 1255 | static char * |
015551fc | 1256 | parse_exp (s, op) |
252b5132 | 1257 | char *s; |
015551fc | 1258 | sh_operand_info *op; |
252b5132 RH |
1259 | { |
1260 | char *save; | |
1261 | char *new; | |
1262 | ||
1263 | save = input_line_pointer; | |
1264 | input_line_pointer = s; | |
015551fc JR |
1265 | expression (&op->immediate); |
1266 | if (op->immediate.X_op == O_absent) | |
252b5132 | 1267 | as_bad (_("missing operand")); |
538cd60f AO |
1268 | #ifdef OBJ_ELF |
1269 | else if (op->immediate.X_op == O_PIC_reloc | |
1270 | || sh_PIC_related_p (op->immediate.X_add_symbol) | |
1271 | || sh_PIC_related_p (op->immediate.X_op_symbol)) | |
1272 | as_bad (_("misplaced PIC operand")); | |
1273 | #endif | |
252b5132 RH |
1274 | new = input_line_pointer; |
1275 | input_line_pointer = save; | |
1276 | return new; | |
1277 | } | |
1278 | ||
252b5132 RH |
1279 | /* The many forms of operand: |
1280 | ||
1281 | Rn Register direct | |
1282 | @Rn Register indirect | |
1283 | @Rn+ Autoincrement | |
1284 | @-Rn Autodecrement | |
1285 | @(disp:4,Rn) | |
1286 | @(disp:8,GBR) | |
1287 | @(disp:8,PC) | |
1288 | ||
1289 | @(R0,Rn) | |
1290 | @(R0,GBR) | |
1291 | ||
1292 | disp:8 | |
1293 | disp:12 | |
1294 | #imm8 | |
1295 | pr, gbr, vbr, macl, mach | |
252b5132 RH |
1296 | */ |
1297 | ||
c4aa876b | 1298 | static char * |
252b5132 RH |
1299 | parse_at (src, op) |
1300 | char *src; | |
1301 | sh_operand_info *op; | |
1302 | { | |
1303 | int len; | |
1304 | int mode; | |
1305 | src++; | |
1306 | if (src[0] == '-') | |
1307 | { | |
6b31947e | 1308 | /* Must be predecrement. */ |
252b5132 RH |
1309 | src++; |
1310 | ||
1311 | len = parse_reg (src, &mode, &(op->reg)); | |
1312 | if (mode != A_REG_N) | |
1313 | as_bad (_("illegal register after @-")); | |
1314 | ||
1315 | op->type = A_DEC_N; | |
1316 | src += len; | |
1317 | } | |
1318 | else if (src[0] == '(') | |
1319 | { | |
1320 | /* Could be @(disp, rn), @(disp, gbr), @(disp, pc), @(r0, gbr) or | |
8d4d84c2 | 1321 | @(r0, rn). */ |
252b5132 RH |
1322 | src++; |
1323 | len = parse_reg (src, &mode, &(op->reg)); | |
1324 | if (len && mode == A_REG_N) | |
1325 | { | |
1326 | src += len; | |
1327 | if (op->reg != 0) | |
1328 | { | |
1329 | as_bad (_("must be @(r0,...)")); | |
1330 | } | |
1331 | if (src[0] == ',') | |
252b5132 | 1332 | { |
8d4d84c2 AO |
1333 | src++; |
1334 | /* Now can be rn or gbr. */ | |
1335 | len = parse_reg (src, &mode, &(op->reg)); | |
1336 | } | |
1337 | else | |
1338 | { | |
1339 | len = 0; | |
252b5132 | 1340 | } |
8d4d84c2 | 1341 | if (len) |
252b5132 | 1342 | { |
8d4d84c2 AO |
1343 | if (mode == A_GBR) |
1344 | { | |
1345 | op->type = A_R0_GBR; | |
1346 | } | |
1347 | else if (mode == A_REG_N) | |
1348 | { | |
1349 | op->type = A_IND_R0_REG_N; | |
1350 | } | |
1351 | else | |
1352 | { | |
1353 | as_bad (_("syntax error in @(r0,...)")); | |
1354 | } | |
252b5132 RH |
1355 | } |
1356 | else | |
1357 | { | |
8d4d84c2 | 1358 | as_bad (_("syntax error in @(r0...)")); |
252b5132 RH |
1359 | } |
1360 | } | |
1361 | else | |
1362 | { | |
8d4d84c2 | 1363 | /* Must be an @(disp,.. thing). */ |
015551fc | 1364 | src = parse_exp (src, op); |
252b5132 RH |
1365 | if (src[0] == ',') |
1366 | src++; | |
8d4d84c2 | 1367 | /* Now can be rn, gbr or pc. */ |
252b5132 RH |
1368 | len = parse_reg (src, &mode, &op->reg); |
1369 | if (len) | |
1370 | { | |
1371 | if (mode == A_REG_N) | |
1372 | { | |
1373 | op->type = A_DISP_REG_N; | |
1374 | } | |
1375 | else if (mode == A_GBR) | |
1376 | { | |
1377 | op->type = A_DISP_GBR; | |
1378 | } | |
015551fc | 1379 | else if (mode == A_PC) |
252b5132 | 1380 | { |
dbb4348d JR |
1381 | /* We want @(expr, pc) to uniformly address . + expr, |
1382 | no matter if expr is a constant, or a more complex | |
1383 | expression, e.g. sym-. or sym1-sym2. | |
1384 | However, we also used to accept @(sym,pc) | |
1385 | as adressing sym, i.e. meaning the same as plain sym. | |
1386 | Some existing code does use the @(sym,pc) syntax, so | |
1387 | we give it the old semantics for now, but warn about | |
1388 | its use, so that users have some time to fix their code. | |
1389 | ||
1390 | Note that due to this backward compatibility hack, | |
1391 | we'll get unexpected results when @(offset, pc) is used, | |
1392 | and offset is a symbol that is set later to an an address | |
1393 | difference, or an external symbol that is set to an | |
1394 | address difference in another source file, so we want to | |
1395 | eventually remove it. */ | |
9691d64f JR |
1396 | if (op->immediate.X_op == O_symbol) |
1397 | { | |
1398 | op->type = A_DISP_PC; | |
1399 | as_warn (_("Deprecated syntax.")); | |
1400 | } | |
1401 | else | |
1402 | { | |
1403 | op->type = A_DISP_PC_ABS; | |
1404 | /* Such operands don't get corrected for PC==.+4, so | |
1405 | make the correction here. */ | |
1406 | op->immediate.X_add_number -= 4; | |
1407 | } | |
252b5132 RH |
1408 | } |
1409 | else | |
1410 | { | |
1411 | as_bad (_("syntax error in @(disp,[Rn, gbr, pc])")); | |
1412 | } | |
1413 | } | |
1414 | else | |
1415 | { | |
1416 | as_bad (_("syntax error in @(disp,[Rn, gbr, pc])")); | |
1417 | } | |
1418 | } | |
1419 | src += len; | |
1420 | if (src[0] != ')') | |
1421 | as_bad (_("expecting )")); | |
1422 | else | |
1423 | src++; | |
1424 | } | |
1425 | else | |
1426 | { | |
1427 | src += parse_reg (src, &mode, &(op->reg)); | |
1428 | if (mode != A_REG_N) | |
006299d3 NC |
1429 | as_bad (_("illegal register after @")); |
1430 | ||
252b5132 RH |
1431 | if (src[0] == '+') |
1432 | { | |
1000a02a NC |
1433 | char l0, l1; |
1434 | ||
252b5132 | 1435 | src++; |
1000a02a NC |
1436 | l0 = TOLOWER (src[0]); |
1437 | l1 = TOLOWER (src[1]); | |
1438 | ||
1439 | if ((l0 == 'r' && l1 == '8') | |
1440 | || (l0 == 'i' && (l1 == 'x' || l1 == 's'))) | |
d4845d57 JR |
1441 | { |
1442 | src += 2; | |
1443 | op->type = A_PMOD_N; | |
1444 | } | |
006299d3 NC |
1445 | else if ( (l0 == 'r' && l1 == '9') |
1446 | || (l0 == 'i' && l1 == 'y')) | |
d4845d57 JR |
1447 | { |
1448 | src += 2; | |
1449 | op->type = A_PMODY_N; | |
1450 | } | |
1451 | else | |
1452 | op->type = A_INC_N; | |
252b5132 RH |
1453 | } |
1454 | else | |
006299d3 | 1455 | op->type = A_IND_N; |
252b5132 RH |
1456 | } |
1457 | return src; | |
1458 | } | |
1459 | ||
1460 | static void | |
1461 | get_operand (ptr, op) | |
1462 | char **ptr; | |
1463 | sh_operand_info *op; | |
1464 | { | |
1465 | char *src = *ptr; | |
1466 | int mode = -1; | |
1467 | unsigned int len; | |
1468 | ||
1469 | if (src[0] == '#') | |
1470 | { | |
1471 | src++; | |
015551fc | 1472 | *ptr = parse_exp (src, op); |
252b5132 RH |
1473 | op->type = A_IMM; |
1474 | return; | |
1475 | } | |
1476 | ||
1477 | else if (src[0] == '@') | |
1478 | { | |
1479 | *ptr = parse_at (src, op); | |
1480 | return; | |
1481 | } | |
1482 | len = parse_reg (src, &mode, &(op->reg)); | |
1483 | if (len) | |
1484 | { | |
1485 | *ptr = src + len; | |
1486 | op->type = mode; | |
1487 | return; | |
1488 | } | |
1489 | else | |
1490 | { | |
6b31947e | 1491 | /* Not a reg, the only thing left is a displacement. */ |
015551fc | 1492 | *ptr = parse_exp (src, op); |
252b5132 RH |
1493 | op->type = A_DISP_PC; |
1494 | return; | |
1495 | } | |
1496 | } | |
1497 | ||
c4aa876b | 1498 | static char * |
252b5132 RH |
1499 | get_operands (info, args, operand) |
1500 | sh_opcode_info *info; | |
1501 | char *args; | |
1502 | sh_operand_info *operand; | |
252b5132 RH |
1503 | { |
1504 | char *ptr = args; | |
1505 | if (info->arg[0]) | |
1506 | { | |
d4845d57 JR |
1507 | /* The pre-processor will eliminate whitespace in front of '@' |
1508 | after the first argument; we may be called multiple times | |
1509 | from assemble_ppi, so don't insist on finding whitespace here. */ | |
1510 | if (*ptr == ' ') | |
1511 | ptr++; | |
252b5132 RH |
1512 | |
1513 | get_operand (&ptr, operand + 0); | |
1514 | if (info->arg[1]) | |
1515 | { | |
1516 | if (*ptr == ',') | |
1517 | { | |
1518 | ptr++; | |
1519 | } | |
1520 | get_operand (&ptr, operand + 1); | |
52ccafd0 JR |
1521 | /* ??? Hack: psha/pshl have a varying operand number depending on |
1522 | the type of the first operand. We handle this by having the | |
1523 | three-operand version first and reducing the number of operands | |
1524 | parsed to two if we see that the first operand is an immediate. | |
1525 | This works because no insn with three operands has an immediate | |
1526 | as first operand. */ | |
1527 | if (info->arg[2] && operand[0].type != A_IMM) | |
252b5132 RH |
1528 | { |
1529 | if (*ptr == ',') | |
1530 | { | |
1531 | ptr++; | |
1532 | } | |
1533 | get_operand (&ptr, operand + 2); | |
1534 | } | |
1535 | else | |
1536 | { | |
1537 | operand[2].type = 0; | |
1538 | } | |
1539 | } | |
1540 | else | |
1541 | { | |
1542 | operand[1].type = 0; | |
1543 | operand[2].type = 0; | |
1544 | } | |
1545 | } | |
1546 | else | |
1547 | { | |
1548 | operand[0].type = 0; | |
1549 | operand[1].type = 0; | |
1550 | operand[2].type = 0; | |
1551 | } | |
1552 | return ptr; | |
1553 | } | |
1554 | ||
1555 | /* Passed a pointer to a list of opcodes which use different | |
1556 | addressing modes, return the opcode which matches the opcodes | |
6b31947e | 1557 | provided. */ |
252b5132 | 1558 | |
c4aa876b | 1559 | static sh_opcode_info * |
252b5132 RH |
1560 | get_specific (opcode, operands) |
1561 | sh_opcode_info *opcode; | |
1562 | sh_operand_info *operands; | |
1563 | { | |
1564 | sh_opcode_info *this_try = opcode; | |
1565 | char *name = opcode->name; | |
1566 | int n = 0; | |
c4aa876b | 1567 | |
252b5132 RH |
1568 | while (opcode->name) |
1569 | { | |
1570 | this_try = opcode++; | |
5ff37431 | 1571 | if ((this_try->name != name) && (strcmp (this_try->name, name) != 0)) |
252b5132 RH |
1572 | { |
1573 | /* We've looked so far down the table that we've run out of | |
6b31947e | 1574 | opcodes with the same name. */ |
252b5132 RH |
1575 | return 0; |
1576 | } | |
c4aa876b | 1577 | |
6b31947e | 1578 | /* Look at both operands needed by the opcodes and provided by |
252b5132 RH |
1579 | the user - since an arg test will often fail on the same arg |
1580 | again and again, we'll try and test the last failing arg the | |
6b31947e | 1581 | first on each opcode try. */ |
252b5132 RH |
1582 | for (n = 0; this_try->arg[n]; n++) |
1583 | { | |
1584 | sh_operand_info *user = operands + n; | |
1585 | sh_arg_type arg = this_try->arg[n]; | |
c4aa876b | 1586 | |
252b5132 RH |
1587 | switch (arg) |
1588 | { | |
7679ead9 AO |
1589 | case A_DISP_PC: |
1590 | if (user->type == A_DISP_PC_ABS) | |
1591 | break; | |
1592 | /* Fall through. */ | |
252b5132 RH |
1593 | case A_IMM: |
1594 | case A_BDISP12: | |
1595 | case A_BDISP8: | |
1596 | case A_DISP_GBR: | |
252b5132 RH |
1597 | case A_MACH: |
1598 | case A_PR: | |
1599 | case A_MACL: | |
1600 | if (user->type != arg) | |
1601 | goto fail; | |
1602 | break; | |
1603 | case A_R0: | |
1604 | /* opcode needs r0 */ | |
1605 | if (user->type != A_REG_N || user->reg != 0) | |
1606 | goto fail; | |
1607 | break; | |
1608 | case A_R0_GBR: | |
1609 | if (user->type != A_R0_GBR || user->reg != 0) | |
1610 | goto fail; | |
1611 | break; | |
1612 | case F_FR0: | |
1613 | if (user->type != F_REG_N || user->reg != 0) | |
1614 | goto fail; | |
1615 | break; | |
1616 | ||
1617 | case A_REG_N: | |
1618 | case A_INC_N: | |
1619 | case A_DEC_N: | |
1620 | case A_IND_N: | |
1621 | case A_IND_R0_REG_N: | |
1622 | case A_DISP_REG_N: | |
1623 | case F_REG_N: | |
1624 | case D_REG_N: | |
1625 | case X_REG_N: | |
1626 | case V_REG_N: | |
1627 | case FPUL_N: | |
1628 | case FPSCR_N: | |
d4845d57 JR |
1629 | case A_PMOD_N: |
1630 | case A_PMODY_N: | |
1631 | case DSP_REG_N: | |
252b5132 RH |
1632 | /* Opcode needs rn */ |
1633 | if (user->type != arg) | |
1634 | goto fail; | |
1635 | reg_n = user->reg; | |
1636 | break; | |
252b5132 RH |
1637 | case DX_REG_N: |
1638 | if (user->type != D_REG_N && user->type != X_REG_N) | |
1639 | goto fail; | |
1640 | reg_n = user->reg; | |
1641 | break; | |
1642 | case A_GBR: | |
1643 | case A_SR: | |
1644 | case A_VBR: | |
d4845d57 JR |
1645 | case A_DSR: |
1646 | case A_MOD: | |
1647 | case A_RE: | |
1648 | case A_RS: | |
252b5132 RH |
1649 | case A_SSR: |
1650 | case A_SPC: | |
1651 | case A_SGR: | |
1652 | case A_DBR: | |
1653 | if (user->type != arg) | |
1654 | goto fail; | |
1655 | break; | |
1656 | ||
c4aa876b | 1657 | case A_REG_B: |
252b5132 RH |
1658 | if (user->type != arg) |
1659 | goto fail; | |
1660 | reg_b = user->reg; | |
1661 | break; | |
1662 | ||
1663 | case A_REG_M: | |
1664 | case A_INC_M: | |
1665 | case A_DEC_M: | |
1666 | case A_IND_M: | |
1667 | case A_IND_R0_REG_M: | |
1668 | case A_DISP_REG_M: | |
d4845d57 | 1669 | case DSP_REG_M: |
252b5132 RH |
1670 | /* Opcode needs rn */ |
1671 | if (user->type != arg - A_REG_M + A_REG_N) | |
1672 | goto fail; | |
1673 | reg_m = user->reg; | |
1674 | break; | |
1675 | ||
d4845d57 JR |
1676 | case DSP_REG_X: |
1677 | if (user->type != DSP_REG_N) | |
1678 | goto fail; | |
1679 | switch (user->reg) | |
1680 | { | |
1681 | case A_X0_NUM: | |
1682 | reg_x = 0; | |
1683 | break; | |
1684 | case A_X1_NUM: | |
1685 | reg_x = 1; | |
1686 | break; | |
1687 | case A_A0_NUM: | |
1688 | reg_x = 2; | |
1689 | break; | |
1690 | case A_A1_NUM: | |
1691 | reg_x = 3; | |
1692 | break; | |
1693 | default: | |
1694 | goto fail; | |
1695 | } | |
1696 | break; | |
1697 | ||
1698 | case DSP_REG_Y: | |
1699 | if (user->type != DSP_REG_N) | |
1700 | goto fail; | |
1701 | switch (user->reg) | |
1702 | { | |
1703 | case A_Y0_NUM: | |
1704 | reg_y = 0; | |
1705 | break; | |
1706 | case A_Y1_NUM: | |
1707 | reg_y = 1; | |
1708 | break; | |
1709 | case A_M0_NUM: | |
1710 | reg_y = 2; | |
1711 | break; | |
1712 | case A_M1_NUM: | |
1713 | reg_y = 3; | |
1714 | break; | |
1715 | default: | |
1716 | goto fail; | |
1717 | } | |
1718 | break; | |
1719 | ||
1720 | case DSP_REG_E: | |
1721 | if (user->type != DSP_REG_N) | |
1722 | goto fail; | |
1723 | switch (user->reg) | |
1724 | { | |
1725 | case A_X0_NUM: | |
1726 | reg_efg = 0 << 10; | |
1727 | break; | |
1728 | case A_X1_NUM: | |
1729 | reg_efg = 1 << 10; | |
1730 | break; | |
1731 | case A_Y0_NUM: | |
1732 | reg_efg = 2 << 10; | |
1733 | break; | |
1734 | case A_A1_NUM: | |
1735 | reg_efg = 3 << 10; | |
1736 | break; | |
1737 | default: | |
1738 | goto fail; | |
1739 | } | |
1740 | break; | |
1741 | ||
1742 | case DSP_REG_F: | |
1743 | if (user->type != DSP_REG_N) | |
1744 | goto fail; | |
1745 | switch (user->reg) | |
1746 | { | |
1747 | case A_Y0_NUM: | |
1748 | reg_efg |= 0 << 8; | |
1749 | break; | |
1750 | case A_Y1_NUM: | |
1751 | reg_efg |= 1 << 8; | |
1752 | break; | |
1753 | case A_X0_NUM: | |
1754 | reg_efg |= 2 << 8; | |
1755 | break; | |
1756 | case A_A1_NUM: | |
1757 | reg_efg |= 3 << 8; | |
1758 | break; | |
1759 | default: | |
1760 | goto fail; | |
1761 | } | |
1762 | break; | |
1763 | ||
1764 | case DSP_REG_G: | |
1765 | if (user->type != DSP_REG_N) | |
1766 | goto fail; | |
1767 | switch (user->reg) | |
1768 | { | |
1769 | case A_M0_NUM: | |
1770 | reg_efg |= 0 << 2; | |
1771 | break; | |
1772 | case A_M1_NUM: | |
1773 | reg_efg |= 1 << 2; | |
1774 | break; | |
1775 | case A_A0_NUM: | |
1776 | reg_efg |= 2 << 2; | |
1777 | break; | |
1778 | case A_A1_NUM: | |
1779 | reg_efg |= 3 << 2; | |
1780 | break; | |
1781 | default: | |
1782 | goto fail; | |
1783 | } | |
1784 | break; | |
1785 | ||
1786 | case A_A0: | |
1787 | if (user->type != DSP_REG_N || user->reg != A_A0_NUM) | |
1788 | goto fail; | |
1789 | break; | |
1790 | case A_X0: | |
1791 | if (user->type != DSP_REG_N || user->reg != A_X0_NUM) | |
1792 | goto fail; | |
1793 | break; | |
1794 | case A_X1: | |
1795 | if (user->type != DSP_REG_N || user->reg != A_X1_NUM) | |
1796 | goto fail; | |
1797 | break; | |
1798 | case A_Y0: | |
1799 | if (user->type != DSP_REG_N || user->reg != A_Y0_NUM) | |
1800 | goto fail; | |
1801 | break; | |
1802 | case A_Y1: | |
1803 | if (user->type != DSP_REG_N || user->reg != A_Y1_NUM) | |
1804 | goto fail; | |
1805 | break; | |
1806 | ||
252b5132 RH |
1807 | case F_REG_M: |
1808 | case D_REG_M: | |
1809 | case X_REG_M: | |
1810 | case V_REG_M: | |
1811 | case FPUL_M: | |
1812 | case FPSCR_M: | |
1813 | /* Opcode needs rn */ | |
1814 | if (user->type != arg - F_REG_M + F_REG_N) | |
1815 | goto fail; | |
1816 | reg_m = user->reg; | |
1817 | break; | |
1818 | case DX_REG_M: | |
1819 | if (user->type != D_REG_N && user->type != X_REG_N) | |
1820 | goto fail; | |
1821 | reg_m = user->reg; | |
1822 | break; | |
1823 | case XMTRX_M4: | |
1824 | if (user->type != XMTRX_M4) | |
1825 | goto fail; | |
1826 | reg_m = 4; | |
1827 | break; | |
c4aa876b | 1828 | |
252b5132 RH |
1829 | default: |
1830 | printf (_("unhandled %d\n"), arg); | |
1831 | goto fail; | |
1832 | } | |
1833 | } | |
a37c8f88 JR |
1834 | if ( !(valid_arch & this_try->arch)) |
1835 | goto fail; | |
d4845d57 | 1836 | valid_arch &= this_try->arch; |
252b5132 | 1837 | return this_try; |
c4aa876b NC |
1838 | fail: |
1839 | ; | |
252b5132 RH |
1840 | } |
1841 | ||
1842 | return 0; | |
1843 | } | |
1844 | ||
252b5132 | 1845 | static void |
015551fc | 1846 | insert (where, how, pcrel, op) |
252b5132 RH |
1847 | char *where; |
1848 | int how; | |
1849 | int pcrel; | |
015551fc | 1850 | sh_operand_info *op; |
252b5132 RH |
1851 | { |
1852 | fix_new_exp (frag_now, | |
1853 | where - frag_now->fr_literal, | |
1854 | 2, | |
015551fc | 1855 | &op->immediate, |
252b5132 RH |
1856 | pcrel, |
1857 | how); | |
1858 | } | |
1859 | ||
1860 | static void | |
015551fc | 1861 | build_relax (opcode, op) |
252b5132 | 1862 | sh_opcode_info *opcode; |
015551fc | 1863 | sh_operand_info *op; |
252b5132 RH |
1864 | { |
1865 | int high_byte = target_big_endian ? 0 : 1; | |
1866 | char *p; | |
1867 | ||
1868 | if (opcode->arg[0] == A_BDISP8) | |
1869 | { | |
1870 | int what = (opcode->nibbles[1] & 4) ? COND_JUMP_DELAY : COND_JUMP; | |
1871 | p = frag_var (rs_machine_dependent, | |
1872 | md_relax_table[C (what, COND32)].rlx_length, | |
1873 | md_relax_table[C (what, COND8)].rlx_length, | |
1874 | C (what, 0), | |
015551fc JR |
1875 | op->immediate.X_add_symbol, |
1876 | op->immediate.X_add_number, | |
252b5132 RH |
1877 | 0); |
1878 | p[high_byte] = (opcode->nibbles[0] << 4) | (opcode->nibbles[1]); | |
1879 | } | |
1880 | else if (opcode->arg[0] == A_BDISP12) | |
1881 | { | |
1882 | p = frag_var (rs_machine_dependent, | |
1883 | md_relax_table[C (UNCOND_JUMP, UNCOND32)].rlx_length, | |
1884 | md_relax_table[C (UNCOND_JUMP, UNCOND12)].rlx_length, | |
1885 | C (UNCOND_JUMP, 0), | |
015551fc JR |
1886 | op->immediate.X_add_symbol, |
1887 | op->immediate.X_add_number, | |
252b5132 RH |
1888 | 0); |
1889 | p[high_byte] = (opcode->nibbles[0] << 4); | |
1890 | } | |
1891 | ||
1892 | } | |
1893 | ||
6b31947e | 1894 | /* Insert ldrs & ldre with fancy relocations that relaxation can recognize. */ |
d67b5d6d | 1895 | |
015551fc JR |
1896 | static char * |
1897 | insert_loop_bounds (output, operand) | |
1898 | char *output; | |
1899 | sh_operand_info *operand; | |
1900 | { | |
1901 | char *name; | |
1902 | symbolS *end_sym; | |
1903 | ||
1904 | /* Since the low byte of the opcode will be overwritten by the reloc, we | |
1905 | can just stash the high byte into both bytes and ignore endianness. */ | |
1906 | output[0] = 0x8c; | |
1907 | output[1] = 0x8c; | |
1908 | insert (output, BFD_RELOC_SH_LOOP_START, 1, operand); | |
1909 | insert (output, BFD_RELOC_SH_LOOP_END, 1, operand + 1); | |
1910 | ||
1911 | if (sh_relax) | |
1912 | { | |
1913 | static int count = 0; | |
1914 | ||
1915 | /* If the last loop insn is a two-byte-insn, it is in danger of being | |
1916 | swapped with the insn after it. To prevent this, create a new | |
1917 | symbol - complete with SH_LABEL reloc - after the last loop insn. | |
1918 | If the last loop insn is four bytes long, the symbol will be | |
1919 | right in the middle, but four byte insns are not swapped anyways. */ | |
1920 | /* A REPEAT takes 6 bytes. The SH has a 32 bit address space. | |
1921 | Hence a 9 digit number should be enough to count all REPEATs. */ | |
1922 | name = alloca (11); | |
1923 | sprintf (name, "_R%x", count++ & 0x3fffffff); | |
c4aa876b | 1924 | end_sym = symbol_new (name, undefined_section, 0, &zero_address_frag); |
015551fc JR |
1925 | /* Make this a local symbol. */ |
1926 | #ifdef OBJ_COFF | |
1927 | SF_SET_LOCAL (end_sym); | |
1928 | #endif /* OBJ_COFF */ | |
1929 | symbol_table_insert (end_sym); | |
1930 | end_sym->sy_value = operand[1].immediate; | |
1931 | end_sym->sy_value.X_add_number += 2; | |
1932 | fix_new (frag_now, frag_now_fix (), 2, end_sym, 0, 1, BFD_RELOC_SH_LABEL); | |
1933 | } | |
1934 | ||
1935 | output = frag_more (2); | |
1936 | output[0] = 0x8e; | |
1937 | output[1] = 0x8e; | |
1938 | insert (output, BFD_RELOC_SH_LOOP_START, 1, operand); | |
1939 | insert (output, BFD_RELOC_SH_LOOP_END, 1, operand + 1); | |
1940 | ||
1941 | return frag_more (2); | |
1942 | } | |
1943 | ||
d67b5d6d | 1944 | /* Now we know what sort of opcodes it is, let's build the bytes. */ |
6b31947e | 1945 | |
0d10e182 | 1946 | static unsigned int |
252b5132 RH |
1947 | build_Mytes (opcode, operand) |
1948 | sh_opcode_info *opcode; | |
1949 | sh_operand_info *operand; | |
252b5132 RH |
1950 | { |
1951 | int index; | |
1952 | char nbuf[4]; | |
1953 | char *output = frag_more (2); | |
0d10e182 | 1954 | unsigned int size = 2; |
252b5132 RH |
1955 | int low_byte = target_big_endian ? 1 : 0; |
1956 | nbuf[0] = 0; | |
1957 | nbuf[1] = 0; | |
1958 | nbuf[2] = 0; | |
1959 | nbuf[3] = 0; | |
1960 | ||
1961 | for (index = 0; index < 4; index++) | |
1962 | { | |
1963 | sh_nibble_type i = opcode->nibbles[index]; | |
1964 | if (i < 16) | |
1965 | { | |
1966 | nbuf[index] = i; | |
1967 | } | |
1968 | else | |
1969 | { | |
1970 | switch (i) | |
1971 | { | |
1972 | case REG_N: | |
1973 | nbuf[index] = reg_n; | |
1974 | break; | |
1975 | case REG_M: | |
1976 | nbuf[index] = reg_m; | |
1977 | break; | |
d4845d57 JR |
1978 | case SDT_REG_N: |
1979 | if (reg_n < 2 || reg_n > 5) | |
1980 | as_bad (_("Invalid register: 'r%d'"), reg_n); | |
1981 | nbuf[index] = (reg_n & 3) | 4; | |
1982 | break; | |
252b5132 RH |
1983 | case REG_NM: |
1984 | nbuf[index] = reg_n | (reg_m >> 2); | |
1985 | break; | |
c4aa876b | 1986 | case REG_B: |
252b5132 RH |
1987 | nbuf[index] = reg_b | 0x08; |
1988 | break; | |
015551fc JR |
1989 | case IMM0_4BY4: |
1990 | insert (output + low_byte, BFD_RELOC_SH_IMM4BY4, 0, operand); | |
1991 | break; | |
1992 | case IMM0_4BY2: | |
1993 | insert (output + low_byte, BFD_RELOC_SH_IMM4BY2, 0, operand); | |
1994 | break; | |
1995 | case IMM0_4: | |
1996 | insert (output + low_byte, BFD_RELOC_SH_IMM4, 0, operand); | |
1997 | break; | |
1998 | case IMM1_4BY4: | |
1999 | insert (output + low_byte, BFD_RELOC_SH_IMM4BY4, 0, operand + 1); | |
2000 | break; | |
2001 | case IMM1_4BY2: | |
2002 | insert (output + low_byte, BFD_RELOC_SH_IMM4BY2, 0, operand + 1); | |
252b5132 | 2003 | break; |
015551fc JR |
2004 | case IMM1_4: |
2005 | insert (output + low_byte, BFD_RELOC_SH_IMM4, 0, operand + 1); | |
252b5132 | 2006 | break; |
015551fc JR |
2007 | case IMM0_8BY4: |
2008 | insert (output + low_byte, BFD_RELOC_SH_IMM8BY4, 0, operand); | |
252b5132 | 2009 | break; |
015551fc JR |
2010 | case IMM0_8BY2: |
2011 | insert (output + low_byte, BFD_RELOC_SH_IMM8BY2, 0, operand); | |
252b5132 | 2012 | break; |
015551fc JR |
2013 | case IMM0_8: |
2014 | insert (output + low_byte, BFD_RELOC_SH_IMM8, 0, operand); | |
252b5132 | 2015 | break; |
015551fc JR |
2016 | case IMM1_8BY4: |
2017 | insert (output + low_byte, BFD_RELOC_SH_IMM8BY4, 0, operand + 1); | |
252b5132 | 2018 | break; |
015551fc JR |
2019 | case IMM1_8BY2: |
2020 | insert (output + low_byte, BFD_RELOC_SH_IMM8BY2, 0, operand + 1); | |
2021 | break; | |
2022 | case IMM1_8: | |
2023 | insert (output + low_byte, BFD_RELOC_SH_IMM8, 0, operand + 1); | |
252b5132 RH |
2024 | break; |
2025 | case PCRELIMM_8BY4: | |
7679ead9 AO |
2026 | insert (output, BFD_RELOC_SH_PCRELIMM8BY4, |
2027 | operand->type != A_DISP_PC_ABS, operand); | |
252b5132 RH |
2028 | break; |
2029 | case PCRELIMM_8BY2: | |
7679ead9 AO |
2030 | insert (output, BFD_RELOC_SH_PCRELIMM8BY2, |
2031 | operand->type != A_DISP_PC_ABS, operand); | |
015551fc JR |
2032 | break; |
2033 | case REPEAT: | |
2034 | output = insert_loop_bounds (output, operand); | |
2035 | nbuf[index] = opcode->nibbles[3]; | |
2036 | operand += 2; | |
252b5132 RH |
2037 | break; |
2038 | default: | |
2039 | printf (_("failed for %d\n"), i); | |
2040 | } | |
2041 | } | |
2042 | } | |
c4aa876b NC |
2043 | if (!target_big_endian) |
2044 | { | |
2045 | output[1] = (nbuf[0] << 4) | (nbuf[1]); | |
2046 | output[0] = (nbuf[2] << 4) | (nbuf[3]); | |
2047 | } | |
2048 | else | |
2049 | { | |
2050 | output[0] = (nbuf[0] << 4) | (nbuf[1]); | |
2051 | output[1] = (nbuf[2] << 4) | (nbuf[3]); | |
2052 | } | |
0d10e182 | 2053 | return size; |
252b5132 RH |
2054 | } |
2055 | ||
d4845d57 JR |
2056 | /* Find an opcode at the start of *STR_P in the hash table, and set |
2057 | *STR_P to the first character after the last one read. */ | |
252b5132 | 2058 | |
d4845d57 JR |
2059 | static sh_opcode_info * |
2060 | find_cooked_opcode (str_p) | |
2061 | char **str_p; | |
252b5132 | 2062 | { |
d4845d57 | 2063 | char *str = *str_p; |
252b5132 RH |
2064 | unsigned char *op_start; |
2065 | unsigned char *op_end; | |
252b5132 RH |
2066 | char name[20]; |
2067 | int nlen = 0; | |
c4aa876b | 2068 | |
6b31947e | 2069 | /* Drop leading whitespace. */ |
252b5132 RH |
2070 | while (*str == ' ') |
2071 | str++; | |
2072 | ||
d4845d57 JR |
2073 | /* Find the op code end. |
2074 | The pre-processor will eliminate whitespace in front of | |
2075 | any '@' after the first argument; we may be called from | |
2076 | assemble_ppi, so the opcode might be terminated by an '@'. */ | |
252b5132 RH |
2077 | for (op_start = op_end = (unsigned char *) (str); |
2078 | *op_end | |
2079 | && nlen < 20 | |
d4845d57 | 2080 | && !is_end_of_line[*op_end] && *op_end != ' ' && *op_end != '@'; |
252b5132 RH |
2081 | op_end++) |
2082 | { | |
2083 | unsigned char c = op_start[nlen]; | |
2084 | ||
2085 | /* The machine independent code will convert CMP/EQ into cmp/EQ | |
d4845d57 JR |
2086 | because it thinks the '/' is the end of the symbol. Moreover, |
2087 | all but the first sub-insn is a parallel processing insn won't | |
3882b010 | 2088 | be capitalized. Instead of hacking up the machine independent |
d4845d57 | 2089 | code, we just deal with it here. */ |
3882b010 | 2090 | c = TOLOWER (c); |
252b5132 RH |
2091 | name[nlen] = c; |
2092 | nlen++; | |
2093 | } | |
c4aa876b | 2094 | |
252b5132 | 2095 | name[nlen] = 0; |
d4845d57 | 2096 | *str_p = op_end; |
252b5132 RH |
2097 | |
2098 | if (nlen == 0) | |
6b31947e | 2099 | as_bad (_("can't find opcode ")); |
252b5132 | 2100 | |
d4845d57 JR |
2101 | return (sh_opcode_info *) hash_find (opcode_hash_control, name); |
2102 | } | |
2103 | ||
2104 | /* Assemble a parallel processing insn. */ | |
2105 | #define DDT_BASE 0xf000 /* Base value for double data transfer insns */ | |
6b31947e | 2106 | |
0d10e182 | 2107 | static unsigned int |
d4845d57 JR |
2108 | assemble_ppi (op_end, opcode) |
2109 | char *op_end; | |
2110 | sh_opcode_info *opcode; | |
2111 | { | |
2112 | int movx = 0; | |
2113 | int movy = 0; | |
2114 | int cond = 0; | |
2115 | int field_b = 0; | |
2116 | char *output; | |
2117 | int move_code; | |
0d10e182 | 2118 | unsigned int size; |
d4845d57 | 2119 | |
d4845d57 JR |
2120 | for (;;) |
2121 | { | |
2122 | sh_operand_info operand[3]; | |
2123 | ||
ac62e7a3 JR |
2124 | /* Some insn ignore one or more register fields, e.g. psts machl,a0. |
2125 | Make sure we encode a defined insn pattern. */ | |
2126 | reg_x = 0; | |
2127 | reg_y = 0; | |
2128 | reg_n = 0; | |
2129 | ||
d4845d57 JR |
2130 | if (opcode->arg[0] != A_END) |
2131 | op_end = get_operands (opcode, op_end, operand); | |
2132 | opcode = get_specific (opcode, operand); | |
2133 | if (opcode == 0) | |
2134 | { | |
6b31947e | 2135 | /* Couldn't find an opcode which matched the operands. */ |
d4845d57 | 2136 | char *where = frag_more (2); |
0d10e182 | 2137 | size = 2; |
d4845d57 JR |
2138 | |
2139 | where[0] = 0x0; | |
2140 | where[1] = 0x0; | |
2141 | as_bad (_("invalid operands for opcode")); | |
0d10e182 | 2142 | return size; |
d4845d57 | 2143 | } |
c4aa876b | 2144 | |
d4845d57 JR |
2145 | if (opcode->nibbles[0] != PPI) |
2146 | as_bad (_("insn can't be combined with parallel processing insn")); | |
2147 | ||
2148 | switch (opcode->nibbles[1]) | |
2149 | { | |
2150 | ||
2151 | case NOPX: | |
2152 | if (movx) | |
2153 | as_bad (_("multiple movx specifications")); | |
2154 | movx = DDT_BASE; | |
2155 | break; | |
2156 | case NOPY: | |
2157 | if (movy) | |
2158 | as_bad (_("multiple movy specifications")); | |
2159 | movy = DDT_BASE; | |
2160 | break; | |
2161 | ||
2162 | case MOVX: | |
2163 | if (movx) | |
2164 | as_bad (_("multiple movx specifications")); | |
2165 | if (reg_n < 4 || reg_n > 5) | |
2166 | as_bad (_("invalid movx address register")); | |
2167 | if (opcode->nibbles[2] & 8) | |
2168 | { | |
2169 | if (reg_m == A_A1_NUM) | |
2170 | movx = 1 << 7; | |
2171 | else if (reg_m != A_A0_NUM) | |
2172 | as_bad (_("invalid movx dsp register")); | |
2173 | } | |
2174 | else | |
2175 | { | |
2176 | if (reg_x > 1) | |
2177 | as_bad (_("invalid movx dsp register")); | |
2178 | movx = reg_x << 7; | |
2179 | } | |
2180 | movx += ((reg_n - 4) << 9) + (opcode->nibbles[2] << 2) + DDT_BASE; | |
2181 | break; | |
2182 | ||
2183 | case MOVY: | |
2184 | if (movy) | |
2185 | as_bad (_("multiple movy specifications")); | |
2186 | if (opcode->nibbles[2] & 8) | |
2187 | { | |
2188 | /* Bit 3 in nibbles[2] is intended for bit 4 of the opcode, | |
2189 | so add 8 more. */ | |
2190 | movy = 8; | |
2191 | if (reg_m == A_A1_NUM) | |
2192 | movy += 1 << 6; | |
2193 | else if (reg_m != A_A0_NUM) | |
2194 | as_bad (_("invalid movy dsp register")); | |
2195 | } | |
2196 | else | |
2197 | { | |
2198 | if (reg_y > 1) | |
2199 | as_bad (_("invalid movy dsp register")); | |
2200 | movy = reg_y << 6; | |
2201 | } | |
2202 | if (reg_n < 6 || reg_n > 7) | |
2203 | as_bad (_("invalid movy address register")); | |
2204 | movy += ((reg_n - 6) << 8) + opcode->nibbles[2] + DDT_BASE; | |
2205 | break; | |
2206 | ||
2207 | case PSH: | |
015551fc | 2208 | if (operand[0].immediate.X_op != O_constant) |
d4845d57 JR |
2209 | as_bad (_("dsp immediate shift value not constant")); |
2210 | field_b = ((opcode->nibbles[2] << 12) | |
015551fc | 2211 | | (operand[0].immediate.X_add_number & 127) << 4 |
d4845d57 JR |
2212 | | reg_n); |
2213 | break; | |
2214 | case PPI3: | |
2215 | if (field_b) | |
2216 | as_bad (_("multiple parallel processing specifications")); | |
2217 | field_b = ((opcode->nibbles[2] << 12) + (opcode->nibbles[3] << 8) | |
2218 | + (reg_x << 6) + (reg_y << 4) + reg_n); | |
2219 | break; | |
2220 | case PDC: | |
2221 | if (cond) | |
2222 | as_bad (_("multiple condition specifications")); | |
2223 | cond = opcode->nibbles[2] << 8; | |
2224 | if (*op_end) | |
2225 | goto skip_cond_check; | |
2226 | break; | |
2227 | case PPIC: | |
2228 | if (field_b) | |
2229 | as_bad (_("multiple parallel processing specifications")); | |
2230 | field_b = ((opcode->nibbles[2] << 12) + (opcode->nibbles[3] << 8) | |
2231 | + cond + (reg_x << 6) + (reg_y << 4) + reg_n); | |
2232 | cond = 0; | |
2233 | break; | |
2234 | case PMUL: | |
2235 | if (field_b) | |
2236 | { | |
2237 | if ((field_b & 0xef00) != 0xa100) | |
2238 | as_bad (_("insn cannot be combined with pmuls")); | |
2239 | field_b -= 0x8100; | |
2240 | switch (field_b & 0xf) | |
2241 | { | |
2242 | case A_X0_NUM: | |
2243 | field_b += 0 - A_X0_NUM; | |
2244 | break; | |
2245 | case A_Y0_NUM: | |
2246 | field_b += 1 - A_Y0_NUM; | |
2247 | break; | |
2248 | case A_A0_NUM: | |
2249 | field_b += 2 - A_A0_NUM; | |
2250 | break; | |
2251 | case A_A1_NUM: | |
2252 | field_b += 3 - A_A1_NUM; | |
2253 | break; | |
2254 | default: | |
2255 | as_bad (_("bad padd / psub pmuls output operand")); | |
2256 | } | |
7dd04abd JR |
2257 | /* Generate warning if the destination register for padd / psub |
2258 | and pmuls is the same ( only for A0 or A1 ). | |
2259 | If the last nibble is 1010 then A0 is used in both | |
2260 | padd / psub and pmuls. If it is 1111 then A1 is used | |
2261 | as destination register in both padd / psub and pmuls. */ | |
5db33d76 JR |
2262 | |
2263 | if ((((field_b | reg_efg) & 0x000F) == 0x000A) | |
2264 | || (((field_b | reg_efg) & 0x000F) == 0x000F)) | |
2265 | as_warn (_("destination register is same for parallel insns")); | |
d4845d57 JR |
2266 | } |
2267 | field_b += 0x4000 + reg_efg; | |
2268 | break; | |
2269 | default: | |
2270 | abort (); | |
2271 | } | |
2272 | if (cond) | |
2273 | { | |
2274 | as_bad (_("condition not followed by conditionalizable insn")); | |
2275 | cond = 0; | |
2276 | } | |
2277 | if (! *op_end) | |
2278 | break; | |
2279 | skip_cond_check: | |
2280 | opcode = find_cooked_opcode (&op_end); | |
2281 | if (opcode == NULL) | |
2282 | { | |
2283 | (as_bad | |
2284 | (_("unrecognized characters at end of parallel processing insn"))); | |
2285 | break; | |
2286 | } | |
2287 | } | |
2288 | ||
2289 | move_code = movx | movy; | |
2290 | if (field_b) | |
2291 | { | |
2292 | /* Parallel processing insn. */ | |
2293 | unsigned long ppi_code = (movx | movy | 0xf800) << 16 | field_b; | |
2294 | ||
2295 | output = frag_more (4); | |
0d10e182 | 2296 | size = 4; |
d4845d57 JR |
2297 | if (! target_big_endian) |
2298 | { | |
2299 | output[3] = ppi_code >> 8; | |
2300 | output[2] = ppi_code; | |
2301 | } | |
2302 | else | |
2303 | { | |
2304 | output[2] = ppi_code >> 8; | |
2305 | output[3] = ppi_code; | |
2306 | } | |
2307 | move_code |= 0xf800; | |
2308 | } | |
2309 | else | |
0d10e182 JL |
2310 | { |
2311 | /* Just a double data transfer. */ | |
2312 | output = frag_more (2); | |
2313 | size = 2; | |
2314 | } | |
d4845d57 JR |
2315 | if (! target_big_endian) |
2316 | { | |
2317 | output[1] = move_code >> 8; | |
2318 | output[0] = move_code; | |
2319 | } | |
2320 | else | |
2321 | { | |
2322 | output[0] = move_code >> 8; | |
2323 | output[1] = move_code; | |
2324 | } | |
0d10e182 | 2325 | return size; |
d4845d57 JR |
2326 | } |
2327 | ||
2328 | /* This is the guts of the machine-dependent assembler. STR points to a | |
2329 | machine dependent instruction. This function is supposed to emit | |
6b31947e | 2330 | the frags/bytes it assembles to. */ |
d4845d57 JR |
2331 | |
2332 | void | |
2333 | md_assemble (str) | |
2334 | char *str; | |
2335 | { | |
2336 | unsigned char *op_end; | |
2337 | sh_operand_info operand[3]; | |
2338 | sh_opcode_info *opcode; | |
dda5ecfc | 2339 | unsigned int size = 0; |
d4845d57 | 2340 | |
324bfcf3 AO |
2341 | #ifdef HAVE_SH64 |
2342 | if (sh64_isa_mode == sh64_isa_shmedia) | |
2343 | { | |
2344 | shmedia_md_assemble (str); | |
2345 | return; | |
2346 | } | |
2347 | else | |
2348 | { | |
2349 | /* If we've seen pseudo-directives, make sure any emitted data or | |
2350 | frags are marked as data. */ | |
2351 | if (seen_insn == false) | |
2352 | { | |
2353 | sh64_update_contents_mark (true); | |
2354 | sh64_set_contents_type (CRT_SH5_ISA16); | |
2355 | } | |
2356 | ||
2357 | seen_insn = true; | |
2358 | } | |
2359 | #endif /* HAVE_SH64 */ | |
2360 | ||
d4845d57 JR |
2361 | opcode = find_cooked_opcode (&str); |
2362 | op_end = str; | |
252b5132 RH |
2363 | |
2364 | if (opcode == NULL) | |
2365 | { | |
2366 | as_bad (_("unknown opcode")); | |
2367 | return; | |
2368 | } | |
2369 | ||
2370 | if (sh_relax | |
2371 | && ! seg_info (now_seg)->tc_segment_info_data.in_code) | |
2372 | { | |
2373 | /* Output a CODE reloc to tell the linker that the following | |
2374 | bytes are instructions, not data. */ | |
2375 | fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0, | |
2376 | BFD_RELOC_SH_CODE); | |
2377 | seg_info (now_seg)->tc_segment_info_data.in_code = 1; | |
2378 | } | |
2379 | ||
d4845d57 JR |
2380 | if (opcode->nibbles[0] == PPI) |
2381 | { | |
0d10e182 | 2382 | size = assemble_ppi (op_end, opcode); |
252b5132 RH |
2383 | } |
2384 | else | |
2385 | { | |
0d10e182 JL |
2386 | if (opcode->arg[0] == A_BDISP12 |
2387 | || opcode->arg[0] == A_BDISP8) | |
252b5132 | 2388 | { |
0d10e182 JL |
2389 | parse_exp (op_end + 1, &operand[0]); |
2390 | build_relax (opcode, &operand[0]); | |
5fc44b2d JR |
2391 | } |
2392 | else | |
2393 | { | |
0d10e182 JL |
2394 | if (opcode->arg[0] == A_END) |
2395 | { | |
2396 | /* Ignore trailing whitespace. If there is any, it has already | |
2397 | been compressed to a single space. */ | |
2398 | if (*op_end == ' ') | |
2399 | op_end++; | |
2400 | } | |
2401 | else | |
2402 | { | |
2403 | op_end = get_operands (opcode, op_end, operand); | |
2404 | } | |
2405 | opcode = get_specific (opcode, operand); | |
252b5132 | 2406 | |
0d10e182 JL |
2407 | if (opcode == 0) |
2408 | { | |
2409 | /* Couldn't find an opcode which matched the operands. */ | |
2410 | char *where = frag_more (2); | |
2411 | size = 2; | |
252b5132 | 2412 | |
0d10e182 JL |
2413 | where[0] = 0x0; |
2414 | where[1] = 0x0; | |
2415 | as_bad (_("invalid operands for opcode")); | |
2416 | } | |
2417 | else | |
2418 | { | |
2419 | if (*op_end) | |
2420 | as_bad (_("excess operands: '%s'"), op_end); | |
2421 | ||
2422 | size = build_Mytes (opcode, operand); | |
2423 | } | |
252b5132 | 2424 | } |
0d10e182 | 2425 | } |
252b5132 | 2426 | |
2bc0a128 | 2427 | #ifdef BFD_ASSEMBLER |
4dc7ead9 | 2428 | dwarf2_emit_insn (size); |
2bc0a128 | 2429 | #endif |
252b5132 RH |
2430 | } |
2431 | ||
2432 | /* This routine is called each time a label definition is seen. It | |
2433 | emits a BFD_RELOC_SH_LABEL reloc if necessary. */ | |
2434 | ||
2435 | void | |
2436 | sh_frob_label () | |
2437 | { | |
2438 | static fragS *last_label_frag; | |
2439 | static int last_label_offset; | |
2440 | ||
2441 | if (sh_relax | |
2442 | && seg_info (now_seg)->tc_segment_info_data.in_code) | |
2443 | { | |
2444 | int offset; | |
2445 | ||
2446 | offset = frag_now_fix (); | |
2447 | if (frag_now != last_label_frag | |
2448 | || offset != last_label_offset) | |
c4aa876b | 2449 | { |
252b5132 RH |
2450 | fix_new (frag_now, offset, 2, &abs_symbol, 0, 0, BFD_RELOC_SH_LABEL); |
2451 | last_label_frag = frag_now; | |
2452 | last_label_offset = offset; | |
2453 | } | |
2454 | } | |
2455 | } | |
2456 | ||
2457 | /* This routine is called when the assembler is about to output some | |
2458 | data. It emits a BFD_RELOC_SH_DATA reloc if necessary. */ | |
2459 | ||
2460 | void | |
2461 | sh_flush_pending_output () | |
2462 | { | |
2463 | if (sh_relax | |
2464 | && seg_info (now_seg)->tc_segment_info_data.in_code) | |
2465 | { | |
2466 | fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0, | |
2467 | BFD_RELOC_SH_DATA); | |
2468 | seg_info (now_seg)->tc_segment_info_data.in_code = 0; | |
2469 | } | |
2470 | } | |
2471 | ||
2472 | symbolS * | |
c0fecd35 | 2473 | md_undefined_symbol (name) |
538cd60f | 2474 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
2475 | { |
2476 | return 0; | |
2477 | } | |
2478 | ||
2479 | #ifdef OBJ_COFF | |
056350c6 | 2480 | #ifndef BFD_ASSEMBLER |
252b5132 RH |
2481 | |
2482 | void | |
c0fecd35 | 2483 | tc_crawl_symbol_chain (headers) |
cce5a618 | 2484 | object_headers *headers ATTRIBUTE_UNUSED; |
252b5132 RH |
2485 | { |
2486 | printf (_("call to tc_crawl_symbol_chain \n")); | |
2487 | } | |
2488 | ||
2489 | void | |
c0fecd35 | 2490 | tc_headers_hook (headers) |
cce5a618 | 2491 | object_headers *headers ATTRIBUTE_UNUSED; |
252b5132 RH |
2492 | { |
2493 | printf (_("call to tc_headers_hook \n")); | |
2494 | } | |
2495 | ||
056350c6 | 2496 | #endif |
252b5132 RH |
2497 | #endif |
2498 | ||
6b31947e NC |
2499 | /* Various routines to kill one day. */ |
2500 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
2501 | #define MAX_LITTLENUMS 6 |
2502 | ||
6b31947e NC |
2503 | /* Turn a string in input_line_pointer into a floating point constant |
2504 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
2505 | of LITTLENUMS emitted is stored in *SIZEP . An error message is | |
2506 | returned, or NULL on OK. */ | |
2507 | ||
252b5132 RH |
2508 | char * |
2509 | md_atof (type, litP, sizeP) | |
2510 | int type; | |
2511 | char *litP; | |
2512 | int *sizeP; | |
2513 | { | |
2514 | int prec; | |
2515 | LITTLENUM_TYPE words[4]; | |
2516 | char *t; | |
2517 | int i; | |
2518 | ||
2519 | switch (type) | |
2520 | { | |
2521 | case 'f': | |
2522 | prec = 2; | |
2523 | break; | |
2524 | ||
2525 | case 'd': | |
2526 | prec = 4; | |
2527 | break; | |
2528 | ||
2529 | default: | |
2530 | *sizeP = 0; | |
2531 | return _("bad call to md_atof"); | |
2532 | } | |
2533 | ||
2534 | t = atof_ieee (input_line_pointer, type, words); | |
2535 | if (t) | |
2536 | input_line_pointer = t; | |
2537 | ||
2538 | *sizeP = prec * 2; | |
2539 | ||
2540 | if (! target_big_endian) | |
2541 | { | |
2542 | for (i = prec - 1; i >= 0; i--) | |
2543 | { | |
2544 | md_number_to_chars (litP, (valueT) words[i], 2); | |
2545 | litP += 2; | |
2546 | } | |
2547 | } | |
2548 | else | |
2549 | { | |
2550 | for (i = 0; i < prec; i++) | |
2551 | { | |
2552 | md_number_to_chars (litP, (valueT) words[i], 2); | |
2553 | litP += 2; | |
2554 | } | |
2555 | } | |
c4aa876b | 2556 | |
252b5132 RH |
2557 | return NULL; |
2558 | } | |
2559 | ||
2560 | /* Handle the .uses pseudo-op. This pseudo-op is used just before a | |
2561 | call instruction. It refers to a label of the instruction which | |
2562 | loads the register which the call uses. We use it to generate a | |
2563 | special reloc for the linker. */ | |
2564 | ||
2565 | static void | |
2566 | s_uses (ignore) | |
43841e91 | 2567 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2568 | { |
2569 | expressionS ex; | |
2570 | ||
2571 | if (! sh_relax) | |
2572 | as_warn (_(".uses pseudo-op seen when not relaxing")); | |
2573 | ||
2574 | expression (&ex); | |
2575 | ||
2576 | if (ex.X_op != O_symbol || ex.X_add_number != 0) | |
2577 | { | |
2578 | as_bad (_("bad .uses format")); | |
2579 | ignore_rest_of_line (); | |
2580 | return; | |
2581 | } | |
2582 | ||
2583 | fix_new_exp (frag_now, frag_now_fix (), 2, &ex, 1, BFD_RELOC_SH_USES); | |
2584 | ||
2585 | demand_empty_rest_of_line (); | |
2586 | } | |
2587 | \f | |
5a38dc70 | 2588 | const char *md_shortopts = ""; |
6b31947e NC |
2589 | struct option md_longopts[] = |
2590 | { | |
252b5132 | 2591 | #define OPTION_RELAX (OPTION_MD_BASE) |
05982cac HPN |
2592 | #define OPTION_BIG (OPTION_MD_BASE + 1) |
2593 | #define OPTION_LITTLE (OPTION_BIG + 1) | |
252b5132 | 2594 | #define OPTION_SMALL (OPTION_LITTLE + 1) |
d4845d57 | 2595 | #define OPTION_DSP (OPTION_SMALL + 1) |
252b5132 RH |
2596 | |
2597 | {"relax", no_argument, NULL, OPTION_RELAX}, | |
05982cac | 2598 | {"big", no_argument, NULL, OPTION_BIG}, |
252b5132 RH |
2599 | {"little", no_argument, NULL, OPTION_LITTLE}, |
2600 | {"small", no_argument, NULL, OPTION_SMALL}, | |
d4845d57 | 2601 | {"dsp", no_argument, NULL, OPTION_DSP}, |
324bfcf3 AO |
2602 | #ifdef HAVE_SH64 |
2603 | #define OPTION_ISA (OPTION_DSP + 1) | |
2604 | #define OPTION_ABI (OPTION_ISA + 1) | |
2605 | #define OPTION_NO_MIX (OPTION_ABI + 1) | |
2606 | #define OPTION_SHCOMPACT_CONST_CRANGE (OPTION_NO_MIX + 1) | |
2607 | #define OPTION_NO_EXPAND (OPTION_SHCOMPACT_CONST_CRANGE + 1) | |
2608 | #define OPTION_PT32 (OPTION_NO_EXPAND + 1) | |
2609 | {"isa", required_argument, NULL, OPTION_ISA}, | |
2610 | {"abi", required_argument, NULL, OPTION_ABI}, | |
2611 | {"no-mix", no_argument, NULL, OPTION_NO_MIX}, | |
2612 | {"shcompact-const-crange", no_argument, NULL, OPTION_SHCOMPACT_CONST_CRANGE}, | |
2613 | {"no-expand", no_argument, NULL, OPTION_NO_EXPAND}, | |
2614 | {"expand-pt32", no_argument, NULL, OPTION_PT32}, | |
2615 | #endif /* HAVE_SH64 */ | |
2616 | ||
252b5132 RH |
2617 | {NULL, no_argument, NULL, 0} |
2618 | }; | |
c4aa876b | 2619 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
2620 | |
2621 | int | |
2622 | md_parse_option (c, arg) | |
2623 | int c; | |
43841e91 | 2624 | char *arg ATTRIBUTE_UNUSED; |
252b5132 RH |
2625 | { |
2626 | switch (c) | |
2627 | { | |
2628 | case OPTION_RELAX: | |
2629 | sh_relax = 1; | |
2630 | break; | |
2631 | ||
05982cac HPN |
2632 | case OPTION_BIG: |
2633 | target_big_endian = 1; | |
2634 | break; | |
2635 | ||
252b5132 | 2636 | case OPTION_LITTLE: |
252b5132 RH |
2637 | target_big_endian = 0; |
2638 | break; | |
2639 | ||
2640 | case OPTION_SMALL: | |
2641 | sh_small = 1; | |
2642 | break; | |
2643 | ||
d4845d57 JR |
2644 | case OPTION_DSP: |
2645 | sh_dsp = 1; | |
2646 | break; | |
2647 | ||
324bfcf3 AO |
2648 | #ifdef HAVE_SH64 |
2649 | case OPTION_ISA: | |
2650 | if (strcasecmp (arg, "shmedia") == 0) | |
2651 | { | |
2652 | if (sh64_isa_mode == sh64_isa_shcompact) | |
2653 | as_bad (_("Invalid combination: --isa=SHcompact with --isa=SHmedia")); | |
2654 | sh64_isa_mode = sh64_isa_shmedia; | |
2655 | } | |
2656 | else if (strcasecmp (arg, "shcompact") == 0) | |
2657 | { | |
2658 | if (sh64_isa_mode == sh64_isa_shmedia) | |
2659 | as_bad (_("Invalid combination: --isa=SHmedia with --isa=SHcompact")); | |
2660 | if (sh64_abi == sh64_abi_64) | |
2661 | as_bad (_("Invalid combination: --abi=64 with --isa=SHcompact")); | |
2662 | sh64_isa_mode = sh64_isa_shcompact; | |
2663 | } | |
2664 | else | |
2665 | as_bad ("Invalid argument to --isa option: %s", arg); | |
2666 | break; | |
2667 | ||
2668 | case OPTION_ABI: | |
2669 | if (strcmp (arg, "32") == 0) | |
2670 | { | |
2671 | if (sh64_abi == sh64_abi_64) | |
2672 | as_bad (_("Invalid combination: --abi=32 with --abi=64")); | |
2673 | sh64_abi = sh64_abi_32; | |
2674 | } | |
2675 | else if (strcmp (arg, "64") == 0) | |
2676 | { | |
2677 | if (sh64_abi == sh64_abi_32) | |
2678 | as_bad (_("Invalid combination: --abi=64 with --abi=32")); | |
2679 | if (sh64_isa_mode == sh64_isa_shcompact) | |
2680 | as_bad (_("Invalid combination: --isa=SHcompact with --abi=64")); | |
2681 | sh64_abi = sh64_abi_64; | |
2682 | } | |
2683 | else | |
2684 | as_bad ("Invalid argument to --abi option: %s", arg); | |
2685 | break; | |
2686 | ||
2687 | case OPTION_NO_MIX: | |
2688 | sh64_mix = false; | |
2689 | break; | |
2690 | ||
2691 | case OPTION_SHCOMPACT_CONST_CRANGE: | |
2692 | sh64_shcompact_const_crange = true; | |
2693 | break; | |
2694 | ||
2695 | case OPTION_NO_EXPAND: | |
2696 | sh64_expand = false; | |
2697 | break; | |
2698 | ||
2699 | case OPTION_PT32: | |
2700 | sh64_pt32 = true; | |
2701 | break; | |
2702 | #endif /* HAVE_SH64 */ | |
2703 | ||
252b5132 RH |
2704 | default: |
2705 | return 0; | |
2706 | } | |
2707 | ||
2708 | return 1; | |
2709 | } | |
2710 | ||
2711 | void | |
2712 | md_show_usage (stream) | |
2713 | FILE *stream; | |
2714 | { | |
c4aa876b | 2715 | fprintf (stream, _("\ |
252b5132 RH |
2716 | SH options:\n\ |
2717 | -little generate little endian code\n\ | |
05982cac | 2718 | -big generate big endian code\n\ |
252b5132 | 2719 | -relax alter jump instructions for long displacements\n\ |
5b8274e3 | 2720 | -small align sections to 4 byte boundaries, not 16\n\ |
182e89d3 | 2721 | -dsp enable sh-dsp insns, and disable sh3e / sh4 insns.\n")); |
324bfcf3 AO |
2722 | #ifdef HAVE_SH64 |
2723 | fprintf (stream, _("\ | |
2724 | -isa=[shmedia set default instruction set for SH64\n\ | |
2725 | | SHmedia\n\ | |
2726 | | shcompact\n\ | |
2727 | | SHcompact]\n\ | |
2728 | -abi=[32|64] set size of expanded SHmedia operands and object\n\ | |
2729 | file type\n\ | |
2730 | -shcompact-const-crange emit code-range descriptors for constants in\n\ | |
2731 | SHcompact code sections\n\ | |
2732 | -no-mix disallow SHmedia code in the same section as\n\ | |
2733 | constants and SHcompact code\n\ | |
2734 | -no-expand do not expand MOVI, PT, PTA or PTB instructions\n\ | |
2735 | -expand-pt32 with -abi=64, expand PT, PTA and PTB instructions\n\ | |
2736 | to 32 bits only")); | |
2737 | #endif /* HAVE_SH64 */ | |
252b5132 RH |
2738 | } |
2739 | \f | |
252b5132 RH |
2740 | /* This struct is used to pass arguments to sh_count_relocs through |
2741 | bfd_map_over_sections. */ | |
2742 | ||
2743 | struct sh_count_relocs | |
2744 | { | |
2745 | /* Symbol we are looking for. */ | |
2746 | symbolS *sym; | |
2747 | /* Count of relocs found. */ | |
2748 | int count; | |
2749 | }; | |
2750 | ||
2751 | /* Count the number of fixups in a section which refer to a particular | |
2752 | symbol. When using BFD_ASSEMBLER, this is called via | |
2753 | bfd_map_over_sections. */ | |
2754 | ||
252b5132 RH |
2755 | static void |
2756 | sh_count_relocs (abfd, sec, data) | |
43841e91 | 2757 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2758 | segT sec; |
2759 | PTR data; | |
2760 | { | |
2761 | struct sh_count_relocs *info = (struct sh_count_relocs *) data; | |
2762 | segment_info_type *seginfo; | |
2763 | symbolS *sym; | |
2764 | fixS *fix; | |
2765 | ||
2766 | seginfo = seg_info (sec); | |
2767 | if (seginfo == NULL) | |
2768 | return; | |
2769 | ||
2770 | sym = info->sym; | |
2771 | for (fix = seginfo->fix_root; fix != NULL; fix = fix->fx_next) | |
2772 | { | |
2773 | if (fix->fx_addsy == sym) | |
2774 | { | |
2775 | ++info->count; | |
2776 | fix->fx_tcbit = 1; | |
2777 | } | |
2778 | } | |
2779 | } | |
2780 | ||
2781 | /* Handle the count relocs for a particular section. When using | |
2782 | BFD_ASSEMBLER, this is called via bfd_map_over_sections. */ | |
2783 | ||
252b5132 RH |
2784 | static void |
2785 | sh_frob_section (abfd, sec, ignore) | |
43841e91 | 2786 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 2787 | segT sec; |
43841e91 | 2788 | PTR ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2789 | { |
2790 | segment_info_type *seginfo; | |
2791 | fixS *fix; | |
2792 | ||
2793 | seginfo = seg_info (sec); | |
2794 | if (seginfo == NULL) | |
2795 | return; | |
2796 | ||
2797 | for (fix = seginfo->fix_root; fix != NULL; fix = fix->fx_next) | |
2798 | { | |
2799 | symbolS *sym; | |
2800 | bfd_vma val; | |
2801 | fixS *fscan; | |
2802 | struct sh_count_relocs info; | |
2803 | ||
2804 | if (fix->fx_r_type != BFD_RELOC_SH_USES) | |
2805 | continue; | |
2806 | ||
2807 | /* The BFD_RELOC_SH_USES reloc should refer to a defined local | |
2808 | symbol in the same section. */ | |
2809 | sym = fix->fx_addsy; | |
2810 | if (sym == NULL | |
2811 | || fix->fx_subsy != NULL | |
2812 | || fix->fx_addnumber != 0 | |
2813 | || S_GET_SEGMENT (sym) != sec | |
2814 | #if ! defined (BFD_ASSEMBLER) && defined (OBJ_COFF) | |
2815 | || S_GET_STORAGE_CLASS (sym) == C_EXT | |
2816 | #endif | |
2817 | || S_IS_EXTERNAL (sym)) | |
2818 | { | |
2819 | as_warn_where (fix->fx_file, fix->fx_line, | |
2820 | _(".uses does not refer to a local symbol in the same section")); | |
2821 | continue; | |
2822 | } | |
2823 | ||
2824 | /* Look through the fixups again, this time looking for one | |
2825 | at the same location as sym. */ | |
2826 | val = S_GET_VALUE (sym); | |
2827 | for (fscan = seginfo->fix_root; | |
2828 | fscan != NULL; | |
2829 | fscan = fscan->fx_next) | |
2830 | if (val == fscan->fx_frag->fr_address + fscan->fx_where | |
2831 | && fscan->fx_r_type != BFD_RELOC_SH_ALIGN | |
2832 | && fscan->fx_r_type != BFD_RELOC_SH_CODE | |
2833 | && fscan->fx_r_type != BFD_RELOC_SH_DATA | |
2834 | && fscan->fx_r_type != BFD_RELOC_SH_LABEL) | |
2835 | break; | |
2836 | if (fscan == NULL) | |
2837 | { | |
2838 | as_warn_where (fix->fx_file, fix->fx_line, | |
2839 | _("can't find fixup pointed to by .uses")); | |
2840 | continue; | |
2841 | } | |
2842 | ||
2843 | if (fscan->fx_tcbit) | |
2844 | { | |
2845 | /* We've already done this one. */ | |
2846 | continue; | |
2847 | } | |
2848 | ||
6b31947e NC |
2849 | /* The variable fscan should also be a fixup to a local symbol |
2850 | in the same section. */ | |
252b5132 RH |
2851 | sym = fscan->fx_addsy; |
2852 | if (sym == NULL | |
2853 | || fscan->fx_subsy != NULL | |
2854 | || fscan->fx_addnumber != 0 | |
2855 | || S_GET_SEGMENT (sym) != sec | |
2856 | #if ! defined (BFD_ASSEMBLER) && defined (OBJ_COFF) | |
2857 | || S_GET_STORAGE_CLASS (sym) == C_EXT | |
2858 | #endif | |
2859 | || S_IS_EXTERNAL (sym)) | |
2860 | { | |
2861 | as_warn_where (fix->fx_file, fix->fx_line, | |
2862 | _(".uses target does not refer to a local symbol in the same section")); | |
2863 | continue; | |
2864 | } | |
2865 | ||
2866 | /* Now we look through all the fixups of all the sections, | |
2867 | counting the number of times we find a reference to sym. */ | |
2868 | info.sym = sym; | |
2869 | info.count = 0; | |
2870 | #ifdef BFD_ASSEMBLER | |
2871 | bfd_map_over_sections (stdoutput, sh_count_relocs, (PTR) &info); | |
2872 | #else | |
2873 | { | |
2874 | int iscan; | |
2875 | ||
2876 | for (iscan = SEG_E0; iscan < SEG_UNKNOWN; iscan++) | |
2877 | sh_count_relocs ((bfd *) NULL, iscan, (PTR) &info); | |
2878 | } | |
2879 | #endif | |
2880 | ||
2881 | if (info.count < 1) | |
2882 | abort (); | |
2883 | ||
2884 | /* Generate a BFD_RELOC_SH_COUNT fixup at the location of sym. | |
2885 | We have already adjusted the value of sym to include the | |
2886 | fragment address, so we undo that adjustment here. */ | |
2887 | subseg_change (sec, 0); | |
7bcad3e5 NC |
2888 | fix_new (fscan->fx_frag, |
2889 | S_GET_VALUE (sym) - fscan->fx_frag->fr_address, | |
252b5132 RH |
2890 | 4, &abs_symbol, info.count, 0, BFD_RELOC_SH_COUNT); |
2891 | } | |
2892 | } | |
2893 | ||
2894 | /* This function is called after the symbol table has been completed, | |
2895 | but before the relocs or section contents have been written out. | |
2896 | If we have seen any .uses pseudo-ops, they point to an instruction | |
2897 | which loads a register with the address of a function. We look | |
2898 | through the fixups to find where the function address is being | |
2899 | loaded from. We then generate a COUNT reloc giving the number of | |
2900 | times that function address is referred to. The linker uses this | |
2901 | information when doing relaxing, to decide when it can eliminate | |
2902 | the stored function address entirely. */ | |
2903 | ||
2904 | void | |
2905 | sh_frob_file () | |
2906 | { | |
324bfcf3 AO |
2907 | #ifdef HAVE_SH64 |
2908 | shmedia_frob_file_before_adjust (); | |
2909 | #endif | |
2910 | ||
252b5132 RH |
2911 | if (! sh_relax) |
2912 | return; | |
2913 | ||
2914 | #ifdef BFD_ASSEMBLER | |
2915 | bfd_map_over_sections (stdoutput, sh_frob_section, (PTR) NULL); | |
2916 | #else | |
2917 | { | |
2918 | int iseg; | |
2919 | ||
2920 | for (iseg = SEG_E0; iseg < SEG_UNKNOWN; iseg++) | |
2921 | sh_frob_section ((bfd *) NULL, iseg, (PTR) NULL); | |
2922 | } | |
2923 | #endif | |
2924 | } | |
2925 | ||
2926 | /* Called after relaxing. Set the correct sizes of the fragments, and | |
94f592af | 2927 | create relocs so that md_apply_fix3 will fill in the correct values. */ |
252b5132 RH |
2928 | |
2929 | void | |
2930 | md_convert_frag (headers, seg, fragP) | |
2931 | #ifdef BFD_ASSEMBLER | |
43841e91 | 2932 | bfd *headers ATTRIBUTE_UNUSED; |
252b5132 | 2933 | #else |
cce5a618 | 2934 | object_headers *headers ATTRIBUTE_UNUSED; |
252b5132 RH |
2935 | #endif |
2936 | segT seg; | |
2937 | fragS *fragP; | |
2938 | { | |
2939 | int donerelax = 0; | |
2940 | ||
2941 | switch (fragP->fr_subtype) | |
2942 | { | |
2943 | case C (COND_JUMP, COND8): | |
2944 | case C (COND_JUMP_DELAY, COND8): | |
2945 | subseg_change (seg, 0); | |
2946 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
2947 | 1, BFD_RELOC_SH_PCDISP8BY2); | |
2948 | fragP->fr_fix += 2; | |
2949 | fragP->fr_var = 0; | |
2950 | break; | |
2951 | ||
2952 | case C (UNCOND_JUMP, UNCOND12): | |
2953 | subseg_change (seg, 0); | |
2954 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset, | |
2955 | 1, BFD_RELOC_SH_PCDISP12BY2); | |
2956 | fragP->fr_fix += 2; | |
2957 | fragP->fr_var = 0; | |
2958 | break; | |
2959 | ||
2960 | case C (UNCOND_JUMP, UNCOND32): | |
2961 | case C (UNCOND_JUMP, UNDEF_WORD_DISP): | |
2962 | if (fragP->fr_symbol == NULL) | |
99b222b4 HPN |
2963 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2964 | _("displacement overflows 12-bit field")); | |
252b5132 | 2965 | else if (S_IS_DEFINED (fragP->fr_symbol)) |
99b222b4 HPN |
2966 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2967 | _("displacement to defined symbol %s overflows 12-bit field"), | |
2968 | S_GET_NAME (fragP->fr_symbol)); | |
252b5132 | 2969 | else |
99b222b4 HPN |
2970 | as_bad_where (fragP->fr_file, fragP->fr_line, |
2971 | _("displacement to undefined symbol %s overflows 12-bit field"), | |
2972 | S_GET_NAME (fragP->fr_symbol)); | |
2973 | /* Stabilize this frag, so we don't trip an assert. */ | |
2974 | fragP->fr_fix += fragP->fr_var; | |
2975 | fragP->fr_var = 0; | |
252b5132 RH |
2976 | break; |
2977 | ||
2978 | case C (COND_JUMP, COND12): | |
2979 | case C (COND_JUMP_DELAY, COND12): | |
6b31947e | 2980 | /* A bcond won't fit, so turn it into a b!cond; bra disp; nop. */ |
252b5132 RH |
2981 | /* I found that a relax failure for gcc.c-torture/execute/930628-1.c |
2982 | was due to gas incorrectly relaxing an out-of-range conditional | |
2983 | branch with delay slot. It turned: | |
2984 | bf.s L6 (slot mov.l r12,@(44,r0)) | |
2985 | into: | |
c4aa876b | 2986 | |
252b5132 RH |
2987 | 2c: 8f 01 a0 8b bf.s 32 <_main+32> (slot bra L6) |
2988 | 30: 00 09 nop | |
2989 | 32: 10 cb mov.l r12,@(44,r0) | |
2990 | Therefore, branches with delay slots have to be handled | |
2991 | differently from ones without delay slots. */ | |
2992 | { | |
2993 | unsigned char *buffer = | |
2994 | (unsigned char *) (fragP->fr_fix + fragP->fr_literal); | |
2995 | int highbyte = target_big_endian ? 0 : 1; | |
2996 | int lowbyte = target_big_endian ? 1 : 0; | |
2997 | int delay = fragP->fr_subtype == C (COND_JUMP_DELAY, COND12); | |
2998 | ||
2999 | /* Toggle the true/false bit of the bcond. */ | |
3000 | buffer[highbyte] ^= 0x2; | |
3001 | ||
d3ecfc59 | 3002 | /* If this is a delayed branch, we may not put the bra in the |
252b5132 RH |
3003 | slot. So we change it to a non-delayed branch, like that: |
3004 | b! cond slot_label; bra disp; slot_label: slot_insn | |
3005 | ??? We should try if swapping the conditional branch and | |
3006 | its delay-slot insn already makes the branch reach. */ | |
3007 | ||
3008 | /* Build a relocation to six / four bytes farther on. */ | |
3009 | subseg_change (seg, 0); | |
3010 | fix_new (fragP, fragP->fr_fix, 2, | |
3011 | #ifdef BFD_ASSEMBLER | |
3012 | section_symbol (seg), | |
3013 | #else | |
3014 | seg_info (seg)->dot, | |
3015 | #endif | |
3016 | fragP->fr_address + fragP->fr_fix + (delay ? 4 : 6), | |
3017 | 1, BFD_RELOC_SH_PCDISP8BY2); | |
3018 | ||
3019 | /* Set up a jump instruction. */ | |
3020 | buffer[highbyte + 2] = 0xa0; | |
3021 | buffer[lowbyte + 2] = 0; | |
3022 | fix_new (fragP, fragP->fr_fix + 2, 2, fragP->fr_symbol, | |
3023 | fragP->fr_offset, 1, BFD_RELOC_SH_PCDISP12BY2); | |
3024 | ||
3025 | if (delay) | |
3026 | { | |
3027 | buffer[highbyte] &= ~0x4; /* Removes delay slot from branch. */ | |
3028 | fragP->fr_fix += 4; | |
3029 | } | |
3030 | else | |
3031 | { | |
3032 | /* Fill in a NOP instruction. */ | |
3033 | buffer[highbyte + 4] = 0x0; | |
3034 | buffer[lowbyte + 4] = 0x9; | |
3035 | ||
3036 | fragP->fr_fix += 6; | |
3037 | } | |
3038 | fragP->fr_var = 0; | |
3039 | donerelax = 1; | |
3040 | } | |
3041 | break; | |
3042 | ||
3043 | case C (COND_JUMP, COND32): | |
3044 | case C (COND_JUMP_DELAY, COND32): | |
3045 | case C (COND_JUMP, UNDEF_WORD_DISP): | |
3046 | case C (COND_JUMP_DELAY, UNDEF_WORD_DISP): | |
3047 | if (fragP->fr_symbol == NULL) | |
99b222b4 HPN |
3048 | as_bad_where (fragP->fr_file, fragP->fr_line, |
3049 | _("displacement overflows 8-bit field")); | |
252b5132 | 3050 | else if (S_IS_DEFINED (fragP->fr_symbol)) |
99b222b4 HPN |
3051 | as_bad_where (fragP->fr_file, fragP->fr_line, |
3052 | _("displacement to defined symbol %s overflows 8-bit field"), | |
3053 | S_GET_NAME (fragP->fr_symbol)); | |
252b5132 | 3054 | else |
99b222b4 HPN |
3055 | as_bad_where (fragP->fr_file, fragP->fr_line, |
3056 | _("displacement to undefined symbol %s overflows 8-bit field "), | |
3057 | S_GET_NAME (fragP->fr_symbol)); | |
3058 | /* Stabilize this frag, so we don't trip an assert. */ | |
3059 | fragP->fr_fix += fragP->fr_var; | |
3060 | fragP->fr_var = 0; | |
252b5132 RH |
3061 | break; |
3062 | ||
3063 | default: | |
324bfcf3 AO |
3064 | #ifdef HAVE_SH64 |
3065 | shmedia_md_convert_frag (headers, seg, fragP, true); | |
3066 | #else | |
252b5132 | 3067 | abort (); |
324bfcf3 | 3068 | #endif |
252b5132 RH |
3069 | } |
3070 | ||
3071 | if (donerelax && !sh_relax) | |
3072 | as_warn_where (fragP->fr_file, fragP->fr_line, | |
3073 | _("overflow in branch to %s; converted into longer instruction sequence"), | |
3074 | (fragP->fr_symbol != NULL | |
3075 | ? S_GET_NAME (fragP->fr_symbol) | |
3076 | : "")); | |
3077 | } | |
3078 | ||
3079 | valueT | |
c0fecd35 | 3080 | md_section_align (seg, size) |
dda5ecfc | 3081 | segT seg ATTRIBUTE_UNUSED; |
c0fecd35 | 3082 | valueT size; |
252b5132 RH |
3083 | { |
3084 | #ifdef BFD_ASSEMBLER | |
3085 | #ifdef OBJ_ELF | |
3086 | return size; | |
3087 | #else /* ! OBJ_ELF */ | |
3088 | return ((size + (1 << bfd_get_section_alignment (stdoutput, seg)) - 1) | |
3089 | & (-1 << bfd_get_section_alignment (stdoutput, seg))); | |
3090 | #endif /* ! OBJ_ELF */ | |
3091 | #else /* ! BFD_ASSEMBLER */ | |
3092 | return ((size + (1 << section_alignment[(int) seg]) - 1) | |
3093 | & (-1 << section_alignment[(int) seg])); | |
3094 | #endif /* ! BFD_ASSEMBLER */ | |
3095 | } | |
3096 | ||
3097 | /* This static variable is set by s_uacons to tell sh_cons_align that | |
3098 | the expession does not need to be aligned. */ | |
3099 | ||
3100 | static int sh_no_align_cons = 0; | |
3101 | ||
3102 | /* This handles the unaligned space allocation pseudo-ops, such as | |
3103 | .uaword. .uaword is just like .word, but the value does not need | |
3104 | to be aligned. */ | |
3105 | ||
3106 | static void | |
3107 | s_uacons (bytes) | |
3108 | int bytes; | |
3109 | { | |
3110 | /* Tell sh_cons_align not to align this value. */ | |
3111 | sh_no_align_cons = 1; | |
3112 | cons (bytes); | |
3113 | } | |
3114 | ||
3115 | /* If a .word, et. al., pseud-op is seen, warn if the value is not | |
3116 | aligned correctly. Note that this can cause warnings to be issued | |
3117 | when assembling initialized structured which were declared with the | |
3118 | packed attribute. FIXME: Perhaps we should require an option to | |
3119 | enable this warning? */ | |
3120 | ||
3121 | void | |
3122 | sh_cons_align (nbytes) | |
3123 | int nbytes; | |
3124 | { | |
3125 | int nalign; | |
3126 | char *p; | |
3127 | ||
3128 | if (sh_no_align_cons) | |
3129 | { | |
3130 | /* This is an unaligned pseudo-op. */ | |
3131 | sh_no_align_cons = 0; | |
3132 | return; | |
3133 | } | |
3134 | ||
3135 | nalign = 0; | |
3136 | while ((nbytes & 1) == 0) | |
3137 | { | |
3138 | ++nalign; | |
3139 | nbytes >>= 1; | |
3140 | } | |
3141 | ||
3142 | if (nalign == 0) | |
3143 | return; | |
3144 | ||
3145 | if (now_seg == absolute_section) | |
3146 | { | |
3147 | if ((abs_section_offset & ((1 << nalign) - 1)) != 0) | |
3148 | as_warn (_("misaligned data")); | |
3149 | return; | |
3150 | } | |
3151 | ||
0a9ef439 | 3152 | p = frag_var (rs_align_test, 1, 1, (relax_substateT) 0, |
252b5132 RH |
3153 | (symbolS *) NULL, (offsetT) nalign, (char *) NULL); |
3154 | ||
3155 | record_alignment (now_seg, nalign); | |
3156 | } | |
3157 | ||
3158 | /* When relaxing, we need to output a reloc for any .align directive | |
3159 | that requests alignment to a four byte boundary or larger. This is | |
3160 | also where we check for misaligned data. */ | |
3161 | ||
3162 | void | |
3163 | sh_handle_align (frag) | |
3164 | fragS *frag; | |
3165 | { | |
0a9ef439 RH |
3166 | int bytes = frag->fr_next->fr_address - frag->fr_address - frag->fr_fix; |
3167 | ||
3168 | if (frag->fr_type == rs_align_code) | |
3169 | { | |
3170 | static const unsigned char big_nop_pattern[] = { 0x00, 0x09 }; | |
3171 | static const unsigned char little_nop_pattern[] = { 0x09, 0x00 }; | |
3172 | ||
3173 | char *p = frag->fr_literal + frag->fr_fix; | |
3174 | ||
3175 | if (bytes & 1) | |
3176 | { | |
3177 | *p++ = 0; | |
3178 | bytes--; | |
3179 | frag->fr_fix += 1; | |
3180 | } | |
3181 | ||
3182 | if (target_big_endian) | |
3183 | { | |
3184 | memcpy (p, big_nop_pattern, sizeof big_nop_pattern); | |
3185 | frag->fr_var = sizeof big_nop_pattern; | |
3186 | } | |
3187 | else | |
3188 | { | |
3189 | memcpy (p, little_nop_pattern, sizeof little_nop_pattern); | |
3190 | frag->fr_var = sizeof little_nop_pattern; | |
3191 | } | |
3192 | } | |
3193 | else if (frag->fr_type == rs_align_test) | |
3194 | { | |
3195 | if (bytes != 0) | |
3196 | as_warn_where (frag->fr_file, frag->fr_line, _("misaligned data")); | |
3197 | } | |
3198 | ||
252b5132 | 3199 | if (sh_relax |
0a9ef439 RH |
3200 | && (frag->fr_type == rs_align |
3201 | || frag->fr_type == rs_align_code) | |
252b5132 RH |
3202 | && frag->fr_address + frag->fr_fix > 0 |
3203 | && frag->fr_offset > 1 | |
3204 | && now_seg != bss_section) | |
3205 | fix_new (frag, frag->fr_fix, 2, &abs_symbol, frag->fr_offset, 0, | |
3206 | BFD_RELOC_SH_ALIGN); | |
252b5132 RH |
3207 | } |
3208 | ||
28602ebf KK |
3209 | /* See whether the relocation should be resolved locally. */ |
3210 | ||
3211 | static boolean | |
3212 | sh_local_pcrel (fix) | |
3213 | fixS *fix; | |
3214 | { | |
3215 | return (! sh_relax && | |
3216 | (fix->fx_r_type == BFD_RELOC_SH_PCDISP8BY2 | |
3217 | || fix->fx_r_type == BFD_RELOC_SH_PCDISP12BY2 | |
3218 | || fix->fx_r_type == BFD_RELOC_SH_PCRELIMM8BY2 | |
3219 | || fix->fx_r_type == BFD_RELOC_SH_PCRELIMM8BY4 | |
3220 | || fix->fx_r_type == BFD_RELOC_8_PCREL | |
3221 | || fix->fx_r_type == BFD_RELOC_SH_SWITCH16 | |
3222 | || fix->fx_r_type == BFD_RELOC_SH_SWITCH32)); | |
3223 | } | |
3224 | ||
252b5132 RH |
3225 | /* See whether we need to force a relocation into the output file. |
3226 | This is used to force out switch and PC relative relocations when | |
3227 | relaxing. */ | |
3228 | ||
3229 | int | |
3230 | sh_force_relocation (fix) | |
3231 | fixS *fix; | |
3232 | { | |
8ba4dac0 DJ |
3233 | /* These relocations can't make it into a DSO, so no use forcing |
3234 | them for global symbols. */ | |
28602ebf | 3235 | if (sh_local_pcrel (fix)) |
8ba4dac0 DJ |
3236 | return 0; |
3237 | ||
9efb3b7b | 3238 | /* Make sure some relocations get emitted. */ |
252b5132 | 3239 | if (fix->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
015551fc JR |
3240 | || fix->fx_r_type == BFD_RELOC_VTABLE_ENTRY |
3241 | || fix->fx_r_type == BFD_RELOC_SH_LOOP_START | |
a161fe53 | 3242 | || fix->fx_r_type == BFD_RELOC_SH_LOOP_END |
9efb3b7b KK |
3243 | || fix->fx_r_type == BFD_RELOC_SH_TLS_GD_32 |
3244 | || fix->fx_r_type == BFD_RELOC_SH_TLS_LD_32 | |
3245 | || fix->fx_r_type == BFD_RELOC_SH_TLS_IE_32 | |
3246 | || fix->fx_r_type == BFD_RELOC_SH_TLS_LDO_32 | |
3247 | || fix->fx_r_type == BFD_RELOC_SH_TLS_LE_32 | |
a161fe53 | 3248 | || S_FORCE_RELOC (fix->fx_addsy)) |
252b5132 RH |
3249 | return 1; |
3250 | ||
3251 | if (! sh_relax) | |
3252 | return 0; | |
3253 | ||
3254 | return (fix->fx_pcrel | |
3255 | || SWITCH_TABLE (fix) | |
3256 | || fix->fx_r_type == BFD_RELOC_SH_COUNT | |
3257 | || fix->fx_r_type == BFD_RELOC_SH_ALIGN | |
3258 | || fix->fx_r_type == BFD_RELOC_SH_CODE | |
3259 | || fix->fx_r_type == BFD_RELOC_SH_DATA | |
324bfcf3 AO |
3260 | #ifdef HAVE_SH64 |
3261 | || fix->fx_r_type == BFD_RELOC_SH_SHMEDIA_CODE | |
3262 | #endif | |
252b5132 RH |
3263 | || fix->fx_r_type == BFD_RELOC_SH_LABEL); |
3264 | } | |
3265 | ||
3266 | #ifdef OBJ_ELF | |
3267 | boolean | |
3268 | sh_fix_adjustable (fixP) | |
3269 | fixS *fixP; | |
3270 | { | |
a161fe53 AM |
3271 | if (fixP->fx_r_type == BFD_RELOC_32_PLT_PCREL |
3272 | || fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL | |
3273 | || fixP->fx_r_type == BFD_RELOC_SH_GOTPC | |
a1cc9221 AO |
3274 | || fixP->fx_r_type == BFD_RELOC_RVA) |
3275 | return 0; | |
3276 | ||
252b5132 RH |
3277 | /* We need the symbol name for the VTABLE entries */ |
3278 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
3279 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
3280 | return 0; | |
3281 | ||
3282 | return 1; | |
3283 | } | |
d4845d57 | 3284 | |
6b31947e NC |
3285 | void |
3286 | sh_elf_final_processing () | |
d4845d57 JR |
3287 | { |
3288 | int val; | |
3289 | ||
3290 | /* Set file-specific flags to indicate if this code needs | |
3291 | a processor with the sh-dsp / sh3e ISA to execute. */ | |
324bfcf3 AO |
3292 | #ifdef HAVE_SH64 |
3293 | /* SH5 and above don't know about the valid_arch arch_sh* bits defined | |
3294 | in sh-opc.h, so check SH64 mode before checking valid_arch. */ | |
3295 | if (sh64_isa_mode != sh64_isa_unspecified) | |
3296 | val = EF_SH5; | |
3297 | else | |
3298 | #endif /* HAVE_SH64 */ | |
d4845d57 JR |
3299 | if (valid_arch & arch_sh1) |
3300 | val = EF_SH1; | |
3301 | else if (valid_arch & arch_sh2) | |
3302 | val = EF_SH2; | |
3303 | else if (valid_arch & arch_sh_dsp) | |
3304 | val = EF_SH_DSP; | |
3305 | else if (valid_arch & arch_sh3) | |
3306 | val = EF_SH3; | |
3307 | else if (valid_arch & arch_sh3_dsp) | |
3308 | val = EF_SH_DSP; | |
3309 | else if (valid_arch & arch_sh3e) | |
3310 | val = EF_SH3E; | |
3311 | else if (valid_arch & arch_sh4) | |
3312 | val = EF_SH4; | |
3313 | else | |
3314 | abort (); | |
3315 | ||
3316 | elf_elfheader (stdoutput)->e_flags &= ~EF_SH_MACH_MASK; | |
3317 | elf_elfheader (stdoutput)->e_flags |= val; | |
3318 | } | |
252b5132 RH |
3319 | #endif |
3320 | ||
3321 | /* Apply a fixup to the object file. */ | |
3322 | ||
252b5132 | 3323 | void |
94f592af NC |
3324 | md_apply_fix3 (fixP, valP, seg) |
3325 | fixS * fixP; | |
3326 | valueT * valP; | |
3327 | segT seg ATTRIBUTE_UNUSED; | |
252b5132 RH |
3328 | { |
3329 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
3330 | int lowbyte = target_big_endian ? 1 : 0; | |
3331 | int highbyte = target_big_endian ? 0 : 1; | |
2ed5f585 | 3332 | long val = (long) *valP; |
252b5132 RH |
3333 | long max, min; |
3334 | int shift; | |
3335 | ||
3336 | #ifdef BFD_ASSEMBLER | |
a1cc9221 AO |
3337 | /* A difference between two symbols, the second of which is in the |
3338 | current section, is transformed in a PC-relative relocation to | |
3339 | the other symbol. We have to adjust the relocation type here. */ | |
3340 | if (fixP->fx_pcrel) | |
3341 | { | |
3342 | switch (fixP->fx_r_type) | |
3343 | { | |
3344 | default: | |
3345 | break; | |
3346 | ||
3347 | case BFD_RELOC_32: | |
3348 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
3349 | break; | |
3350 | ||
3351 | /* Currently, we only support 32-bit PCREL relocations. | |
3352 | We'd need a new reloc type to handle 16_PCREL, and | |
3353 | 8_PCREL is already taken for R_SH_SWITCH8, which | |
3354 | apparently does something completely different than what | |
3355 | we need. FIXME. */ | |
3356 | case BFD_RELOC_16: | |
3357 | bfd_set_error (bfd_error_bad_value); | |
94f592af | 3358 | return; |
81d4177b | 3359 | |
a1cc9221 AO |
3360 | case BFD_RELOC_8: |
3361 | bfd_set_error (bfd_error_bad_value); | |
94f592af | 3362 | return; |
a1cc9221 AO |
3363 | } |
3364 | } | |
3365 | ||
6b31947e NC |
3366 | /* The function adjust_reloc_syms won't convert a reloc against a weak |
3367 | symbol into a reloc against a section, but bfd_install_relocation | |
3368 | will screw up if the symbol is defined, so we have to adjust val here | |
1308f14c HPN |
3369 | to avoid the screw up later. |
3370 | ||
3371 | For ordinary relocs, this does not happen for ELF, since for ELF, | |
3372 | bfd_install_relocation uses the "special function" field of the | |
3373 | howto, and does not execute the code that needs to be undone, as long | |
3374 | as the special function does not return bfd_reloc_continue. | |
3375 | It can happen for GOT- and PLT-type relocs the way they are | |
3376 | described in elf32-sh.c as they use bfd_elf_generic_reloc, but it | |
3377 | doesn't matter here since those relocs don't use VAL; see below. */ | |
3378 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour | |
3379 | && fixP->fx_addsy != NULL | |
252b5132 RH |
3380 | && S_IS_WEAK (fixP->fx_addsy)) |
3381 | val -= S_GET_VALUE (fixP->fx_addsy); | |
3382 | #endif | |
3383 | ||
3384 | #ifndef BFD_ASSEMBLER | |
3385 | if (fixP->fx_r_type == 0) | |
3386 | { | |
3387 | if (fixP->fx_size == 2) | |
3388 | fixP->fx_r_type = BFD_RELOC_16; | |
3389 | else if (fixP->fx_size == 4) | |
3390 | fixP->fx_r_type = BFD_RELOC_32; | |
3391 | else if (fixP->fx_size == 1) | |
3392 | fixP->fx_r_type = BFD_RELOC_8; | |
3393 | else | |
3394 | abort (); | |
3395 | } | |
3396 | #endif | |
3397 | ||
3398 | max = min = 0; | |
3399 | shift = 0; | |
3400 | switch (fixP->fx_r_type) | |
3401 | { | |
3402 | case BFD_RELOC_SH_IMM4: | |
3403 | max = 0xf; | |
3404 | *buf = (*buf & 0xf0) | (val & 0xf); | |
3405 | break; | |
3406 | ||
3407 | case BFD_RELOC_SH_IMM4BY2: | |
3408 | max = 0xf; | |
3409 | shift = 1; | |
3410 | *buf = (*buf & 0xf0) | ((val >> 1) & 0xf); | |
3411 | break; | |
3412 | ||
3413 | case BFD_RELOC_SH_IMM4BY4: | |
3414 | max = 0xf; | |
3415 | shift = 2; | |
3416 | *buf = (*buf & 0xf0) | ((val >> 2) & 0xf); | |
3417 | break; | |
3418 | ||
3419 | case BFD_RELOC_SH_IMM8BY2: | |
3420 | max = 0xff; | |
3421 | shift = 1; | |
3422 | *buf = val >> 1; | |
3423 | break; | |
3424 | ||
3425 | case BFD_RELOC_SH_IMM8BY4: | |
3426 | max = 0xff; | |
3427 | shift = 2; | |
3428 | *buf = val >> 2; | |
3429 | break; | |
3430 | ||
3431 | case BFD_RELOC_8: | |
3432 | case BFD_RELOC_SH_IMM8: | |
3433 | /* Sometimes the 8 bit value is sign extended (e.g., add) and | |
3434 | sometimes it is not (e.g., and). We permit any 8 bit value. | |
3435 | Note that adding further restrictions may invalidate | |
3436 | reasonable looking assembly code, such as ``and -0x1,r0''. */ | |
3437 | max = 0xff; | |
c4aa876b | 3438 | min = -0xff; |
252b5132 RH |
3439 | *buf++ = val; |
3440 | break; | |
3441 | ||
3442 | case BFD_RELOC_SH_PCRELIMM8BY4: | |
3443 | /* The lower two bits of the PC are cleared before the | |
3444 | displacement is added in. We can assume that the destination | |
3445 | is on a 4 byte bounday. If this instruction is also on a 4 | |
3446 | byte boundary, then we want | |
3447 | (target - here) / 4 | |
3448 | and target - here is a multiple of 4. | |
3449 | Otherwise, we are on a 2 byte boundary, and we want | |
3450 | (target - (here - 2)) / 4 | |
3451 | and target - here is not a multiple of 4. Computing | |
3452 | (target - (here - 2)) / 4 == (target - here + 2) / 4 | |
3453 | works for both cases, since in the first case the addition of | |
3454 | 2 will be removed by the division. target - here is in the | |
3455 | variable val. */ | |
3456 | val = (val + 2) / 4; | |
3457 | if (val & ~0xff) | |
3458 | as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far")); | |
3459 | buf[lowbyte] = val; | |
3460 | break; | |
3461 | ||
3462 | case BFD_RELOC_SH_PCRELIMM8BY2: | |
3463 | val /= 2; | |
3464 | if (val & ~0xff) | |
3465 | as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far")); | |
3466 | buf[lowbyte] = val; | |
3467 | break; | |
3468 | ||
3469 | case BFD_RELOC_SH_PCDISP8BY2: | |
3470 | val /= 2; | |
3471 | if (val < -0x80 || val > 0x7f) | |
3472 | as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far")); | |
3473 | buf[lowbyte] = val; | |
3474 | break; | |
3475 | ||
3476 | case BFD_RELOC_SH_PCDISP12BY2: | |
3477 | val /= 2; | |
8637c045 | 3478 | if (val < -0x800 || val > 0x7ff) |
252b5132 RH |
3479 | as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far")); |
3480 | buf[lowbyte] = val & 0xff; | |
3481 | buf[highbyte] |= (val >> 8) & 0xf; | |
3482 | break; | |
3483 | ||
3484 | case BFD_RELOC_32: | |
a1cc9221 | 3485 | case BFD_RELOC_32_PCREL: |
1db77c8e | 3486 | md_number_to_chars (buf, val, 4); |
252b5132 RH |
3487 | break; |
3488 | ||
3489 | case BFD_RELOC_16: | |
1db77c8e | 3490 | md_number_to_chars (buf, val, 2); |
252b5132 RH |
3491 | break; |
3492 | ||
3493 | case BFD_RELOC_SH_USES: | |
3494 | /* Pass the value into sh_coff_reloc_mangle. */ | |
3495 | fixP->fx_addnumber = val; | |
3496 | break; | |
3497 | ||
3498 | case BFD_RELOC_SH_COUNT: | |
3499 | case BFD_RELOC_SH_ALIGN: | |
3500 | case BFD_RELOC_SH_CODE: | |
3501 | case BFD_RELOC_SH_DATA: | |
3502 | case BFD_RELOC_SH_LABEL: | |
3503 | /* Nothing to do here. */ | |
3504 | break; | |
3505 | ||
015551fc JR |
3506 | case BFD_RELOC_SH_LOOP_START: |
3507 | case BFD_RELOC_SH_LOOP_END: | |
3508 | ||
252b5132 RH |
3509 | case BFD_RELOC_VTABLE_INHERIT: |
3510 | case BFD_RELOC_VTABLE_ENTRY: | |
3511 | fixP->fx_done = 0; | |
3512 | return; | |
3513 | ||
a1cc9221 AO |
3514 | #ifdef OBJ_ELF |
3515 | case BFD_RELOC_32_PLT_PCREL: | |
3516 | /* Make the jump instruction point to the address of the operand. At | |
81d4177b | 3517 | runtime we merely add the offset to the actual PLT entry. */ |
94f592af | 3518 | * valP = 0xfffffffc; |
a161fe53 | 3519 | val = 0; |
ac3f04d7 AO |
3520 | if (fixP->fx_subsy) |
3521 | val -= S_GET_VALUE (fixP->fx_subsy); | |
a161fe53 | 3522 | fixP->fx_addnumber = val; |
538cd60f | 3523 | md_number_to_chars (buf, val, 4); |
a1cc9221 AO |
3524 | break; |
3525 | ||
3526 | case BFD_RELOC_SH_GOTPC: | |
3527 | /* This is tough to explain. We end up with this one if we have | |
3528 | operands that look like "_GLOBAL_OFFSET_TABLE_+[.-.L284]". | |
3529 | The goal here is to obtain the absolute address of the GOT, | |
3530 | and it is strongly preferable from a performance point of | |
3531 | view to avoid using a runtime relocation for this. There are | |
3532 | cases where you have something like: | |
81d4177b | 3533 | |
a1cc9221 | 3534 | .long _GLOBAL_OFFSET_TABLE_+[.-.L66] |
81d4177b | 3535 | |
a1cc9221 AO |
3536 | and here no correction would be required. Internally in the |
3537 | assembler we treat operands of this form as not being pcrel | |
3538 | since the '.' is explicitly mentioned, and I wonder whether | |
3539 | it would simplify matters to do it this way. Who knows. In | |
3540 | earlier versions of the PIC patches, the pcrel_adjust field | |
3541 | was used to store the correction, but since the expression is | |
3542 | not pcrel, I felt it would be confusing to do it this way. */ | |
94f592af | 3543 | * valP -= 1; |
a1cc9221 AO |
3544 | md_number_to_chars (buf, val, 4); |
3545 | break; | |
3546 | ||
3547 | case BFD_RELOC_32_GOT_PCREL: | |
324bfcf3 | 3548 | case BFD_RELOC_SH_GOTPLT32: |
9efb3b7b KK |
3549 | case BFD_RELOC_SH_TLS_GD_32: |
3550 | case BFD_RELOC_SH_TLS_LD_32: | |
3551 | case BFD_RELOC_SH_TLS_IE_32: | |
94f592af | 3552 | * valP = 0; /* Fully resolved at runtime. No addend. */ |
a1cc9221 AO |
3553 | md_number_to_chars (buf, 0, 4); |
3554 | break; | |
3555 | ||
3556 | case BFD_RELOC_32_GOTOFF: | |
9efb3b7b KK |
3557 | case BFD_RELOC_SH_TLS_LDO_32: |
3558 | case BFD_RELOC_SH_TLS_LE_32: | |
538cd60f | 3559 | md_number_to_chars (buf, val, 4); |
a1cc9221 AO |
3560 | break; |
3561 | #endif | |
3562 | ||
252b5132 | 3563 | default: |
324bfcf3 AO |
3564 | #ifdef HAVE_SH64 |
3565 | shmedia_md_apply_fix3 (fixP, valP); | |
3566 | return; | |
3567 | #else | |
252b5132 | 3568 | abort (); |
324bfcf3 | 3569 | #endif |
252b5132 RH |
3570 | } |
3571 | ||
3572 | if (shift != 0) | |
3573 | { | |
3574 | if ((val & ((1 << shift) - 1)) != 0) | |
3575 | as_bad_where (fixP->fx_file, fixP->fx_line, _("misaligned offset")); | |
3576 | if (val >= 0) | |
3577 | val >>= shift; | |
3578 | else | |
3579 | val = ((val >> shift) | |
3580 | | ((long) -1 & ~ ((long) -1 >> shift))); | |
3581 | } | |
3582 | if (max != 0 && (val < min || val > max)) | |
3583 | as_bad_where (fixP->fx_file, fixP->fx_line, _("offset out of range")); | |
3584 | ||
94f592af NC |
3585 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) |
3586 | fixP->fx_done = 1; | |
252b5132 RH |
3587 | } |
3588 | ||
3589 | /* Called just before address relaxation. Return the length | |
3590 | by which a fragment must grow to reach it's destination. */ | |
3591 | ||
3592 | int | |
3593 | md_estimate_size_before_relax (fragP, segment_type) | |
3594 | register fragS *fragP; | |
3595 | register segT segment_type; | |
3596 | { | |
e66457fb AM |
3597 | int what; |
3598 | ||
252b5132 RH |
3599 | switch (fragP->fr_subtype) |
3600 | { | |
93c2a809 | 3601 | default: |
324bfcf3 AO |
3602 | #ifdef HAVE_SH64 |
3603 | return shmedia_md_estimate_size_before_relax (fragP, segment_type); | |
3604 | #else | |
93c2a809 | 3605 | abort (); |
324bfcf3 AO |
3606 | #endif |
3607 | ||
93c2a809 | 3608 | |
252b5132 | 3609 | case C (UNCOND_JUMP, UNDEF_DISP): |
6b31947e | 3610 | /* Used to be a branch to somewhere which was unknown. */ |
252b5132 RH |
3611 | if (!fragP->fr_symbol) |
3612 | { | |
3613 | fragP->fr_subtype = C (UNCOND_JUMP, UNCOND12); | |
252b5132 RH |
3614 | } |
3615 | else if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type) | |
3616 | { | |
3617 | fragP->fr_subtype = C (UNCOND_JUMP, UNCOND12); | |
252b5132 RH |
3618 | } |
3619 | else | |
3620 | { | |
3621 | fragP->fr_subtype = C (UNCOND_JUMP, UNDEF_WORD_DISP); | |
252b5132 RH |
3622 | } |
3623 | break; | |
3624 | ||
252b5132 RH |
3625 | case C (COND_JUMP, UNDEF_DISP): |
3626 | case C (COND_JUMP_DELAY, UNDEF_DISP): | |
e66457fb | 3627 | what = GET_WHAT (fragP->fr_subtype); |
6b31947e | 3628 | /* Used to be a branch to somewhere which was unknown. */ |
252b5132 RH |
3629 | if (fragP->fr_symbol |
3630 | && S_GET_SEGMENT (fragP->fr_symbol) == segment_type) | |
3631 | { | |
252b5132 | 3632 | /* Got a symbol and it's defined in this segment, become byte |
6b31947e | 3633 | sized - maybe it will fix up. */ |
252b5132 | 3634 | fragP->fr_subtype = C (what, COND8); |
252b5132 RH |
3635 | } |
3636 | else if (fragP->fr_symbol) | |
3637 | { | |
6b31947e | 3638 | /* Its got a segment, but its not ours, so it will always be long. */ |
252b5132 | 3639 | fragP->fr_subtype = C (what, UNDEF_WORD_DISP); |
252b5132 RH |
3640 | } |
3641 | else | |
3642 | { | |
6b31947e | 3643 | /* We know the abs value. */ |
252b5132 | 3644 | fragP->fr_subtype = C (what, COND8); |
252b5132 | 3645 | } |
93c2a809 | 3646 | break; |
252b5132 | 3647 | |
93c2a809 | 3648 | case C (UNCOND_JUMP, UNCOND12): |
e66457fb | 3649 | case C (UNCOND_JUMP, UNCOND32): |
93c2a809 AM |
3650 | case C (UNCOND_JUMP, UNDEF_WORD_DISP): |
3651 | case C (COND_JUMP, COND8): | |
e66457fb AM |
3652 | case C (COND_JUMP, COND12): |
3653 | case C (COND_JUMP, COND32): | |
93c2a809 AM |
3654 | case C (COND_JUMP, UNDEF_WORD_DISP): |
3655 | case C (COND_JUMP_DELAY, COND8): | |
e66457fb AM |
3656 | case C (COND_JUMP_DELAY, COND12): |
3657 | case C (COND_JUMP_DELAY, COND32): | |
93c2a809 AM |
3658 | case C (COND_JUMP_DELAY, UNDEF_WORD_DISP): |
3659 | /* When relaxing a section for the second time, we don't need to | |
e66457fb | 3660 | do anything besides return the current size. */ |
252b5132 RH |
3661 | break; |
3662 | } | |
e66457fb AM |
3663 | |
3664 | fragP->fr_var = md_relax_table[fragP->fr_subtype].rlx_length; | |
252b5132 RH |
3665 | return fragP->fr_var; |
3666 | } | |
3667 | ||
6b31947e | 3668 | /* Put number into target byte order. */ |
252b5132 RH |
3669 | |
3670 | void | |
3671 | md_number_to_chars (ptr, use, nbytes) | |
3672 | char *ptr; | |
3673 | valueT use; | |
3674 | int nbytes; | |
3675 | { | |
324bfcf3 AO |
3676 | #ifdef HAVE_SH64 |
3677 | /* We might need to set the contents type to data. */ | |
3678 | sh64_flag_output (); | |
3679 | #endif | |
3680 | ||
252b5132 RH |
3681 | if (! target_big_endian) |
3682 | number_to_chars_littleendian (ptr, use, nbytes); | |
3683 | else | |
3684 | number_to_chars_bigendian (ptr, use, nbytes); | |
3685 | } | |
3686 | ||
cce5a618 NC |
3687 | /* This version is used in obj-coff.c when not using BFD_ASSEMBLER. |
3688 | eg for the sh-hms target. */ | |
3689 | ||
3690 | long | |
3691 | md_pcrel_from (fixP) | |
3692 | fixS *fixP; | |
3693 | { | |
3694 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address + 2; | |
3695 | } | |
3696 | ||
252b5132 | 3697 | long |
ef17112f | 3698 | md_pcrel_from_section (fixP, sec) |
252b5132 | 3699 | fixS *fixP; |
ef17112f | 3700 | segT sec; |
252b5132 | 3701 | { |
28602ebf KK |
3702 | if (! sh_local_pcrel (fixP) |
3703 | && fixP->fx_addsy != (symbolS *) NULL | |
3704 | && (S_FORCE_RELOC (fixP->fx_addsy) | |
ef17112f HPN |
3705 | || S_GET_SEGMENT (fixP->fx_addsy) != sec)) |
3706 | { | |
3707 | /* The symbol is undefined (or is defined but not in this section, | |
3708 | or we're not sure about it being the final definition). Let the | |
3709 | linker figure it out. We need to adjust the subtraction of a | |
3710 | symbol to the position of the relocated data, though. */ | |
3711 | return fixP->fx_subsy ? fixP->fx_where + fixP->fx_frag->fr_address : 0; | |
3712 | } | |
3713 | ||
cce5a618 | 3714 | return md_pcrel_from (fixP); |
252b5132 RH |
3715 | } |
3716 | ||
3717 | #ifdef OBJ_COFF | |
3718 | ||
3719 | int | |
3720 | tc_coff_sizemachdep (frag) | |
3721 | fragS *frag; | |
3722 | { | |
3723 | return md_relax_table[frag->fr_subtype].rlx_length; | |
3724 | } | |
3725 | ||
3726 | #endif /* OBJ_COFF */ | |
3727 | ||
252b5132 RH |
3728 | #ifndef BFD_ASSEMBLER |
3729 | #ifdef OBJ_COFF | |
3730 | ||
3731 | /* Map BFD relocs to SH COFF relocs. */ | |
3732 | ||
3733 | struct reloc_map | |
3734 | { | |
3735 | bfd_reloc_code_real_type bfd_reloc; | |
3736 | int sh_reloc; | |
3737 | }; | |
3738 | ||
3739 | static const struct reloc_map coff_reloc_map[] = | |
3740 | { | |
3741 | { BFD_RELOC_32, R_SH_IMM32 }, | |
3742 | { BFD_RELOC_16, R_SH_IMM16 }, | |
3743 | { BFD_RELOC_8, R_SH_IMM8 }, | |
3744 | { BFD_RELOC_SH_PCDISP8BY2, R_SH_PCDISP8BY2 }, | |
3745 | { BFD_RELOC_SH_PCDISP12BY2, R_SH_PCDISP }, | |
3746 | { BFD_RELOC_SH_IMM4, R_SH_IMM4 }, | |
3747 | { BFD_RELOC_SH_IMM4BY2, R_SH_IMM4BY2 }, | |
3748 | { BFD_RELOC_SH_IMM4BY4, R_SH_IMM4BY4 }, | |
3749 | { BFD_RELOC_SH_IMM8, R_SH_IMM8 }, | |
3750 | { BFD_RELOC_SH_IMM8BY2, R_SH_IMM8BY2 }, | |
3751 | { BFD_RELOC_SH_IMM8BY4, R_SH_IMM8BY4 }, | |
3752 | { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_PCRELIMM8BY2 }, | |
3753 | { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_PCRELIMM8BY4 }, | |
3754 | { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, | |
3755 | { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, | |
3756 | { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, | |
3757 | { BFD_RELOC_SH_USES, R_SH_USES }, | |
3758 | { BFD_RELOC_SH_COUNT, R_SH_COUNT }, | |
3759 | { BFD_RELOC_SH_ALIGN, R_SH_ALIGN }, | |
3760 | { BFD_RELOC_SH_CODE, R_SH_CODE }, | |
3761 | { BFD_RELOC_SH_DATA, R_SH_DATA }, | |
3762 | { BFD_RELOC_SH_LABEL, R_SH_LABEL }, | |
3763 | { BFD_RELOC_UNUSED, 0 } | |
3764 | }; | |
3765 | ||
3766 | /* Adjust a reloc for the SH. This is similar to the generic code, | |
3767 | but does some minor tweaking. */ | |
3768 | ||
3769 | void | |
3770 | sh_coff_reloc_mangle (seg, fix, intr, paddr) | |
3771 | segment_info_type *seg; | |
3772 | fixS *fix; | |
3773 | struct internal_reloc *intr; | |
3774 | unsigned int paddr; | |
3775 | { | |
3776 | symbolS *symbol_ptr = fix->fx_addsy; | |
3777 | symbolS *dot; | |
3778 | ||
3779 | intr->r_vaddr = paddr + fix->fx_frag->fr_address + fix->fx_where; | |
3780 | ||
3781 | if (! SWITCH_TABLE (fix)) | |
3782 | { | |
3783 | const struct reloc_map *rm; | |
3784 | ||
3785 | for (rm = coff_reloc_map; rm->bfd_reloc != BFD_RELOC_UNUSED; rm++) | |
3786 | if (rm->bfd_reloc == (bfd_reloc_code_real_type) fix->fx_r_type) | |
3787 | break; | |
3788 | if (rm->bfd_reloc == BFD_RELOC_UNUSED) | |
3789 | as_bad_where (fix->fx_file, fix->fx_line, | |
3790 | _("Can not represent %s relocation in this object file format"), | |
3791 | bfd_get_reloc_code_name (fix->fx_r_type)); | |
3792 | intr->r_type = rm->sh_reloc; | |
3793 | intr->r_offset = 0; | |
3794 | } | |
3795 | else | |
3796 | { | |
3797 | know (sh_relax); | |
3798 | ||
3799 | if (fix->fx_r_type == BFD_RELOC_16) | |
3800 | intr->r_type = R_SH_SWITCH16; | |
3801 | else if (fix->fx_r_type == BFD_RELOC_8) | |
3802 | intr->r_type = R_SH_SWITCH8; | |
3803 | else if (fix->fx_r_type == BFD_RELOC_32) | |
3804 | intr->r_type = R_SH_SWITCH32; | |
3805 | else | |
3806 | abort (); | |
3807 | ||
3808 | /* For a switch reloc, we set r_offset to the difference between | |
3809 | the reloc address and the subtrahend. When the linker is | |
3810 | doing relaxing, it can use the determine the starting and | |
3811 | ending points of the switch difference expression. */ | |
3812 | intr->r_offset = intr->r_vaddr - S_GET_VALUE (fix->fx_subsy); | |
3813 | } | |
3814 | ||
3815 | /* PC relative relocs are always against the current section. */ | |
3816 | if (symbol_ptr == NULL) | |
3817 | { | |
3818 | switch (fix->fx_r_type) | |
3819 | { | |
3820 | case BFD_RELOC_SH_PCRELIMM8BY2: | |
3821 | case BFD_RELOC_SH_PCRELIMM8BY4: | |
3822 | case BFD_RELOC_SH_PCDISP8BY2: | |
3823 | case BFD_RELOC_SH_PCDISP12BY2: | |
3824 | case BFD_RELOC_SH_USES: | |
3825 | symbol_ptr = seg->dot; | |
3826 | break; | |
3827 | default: | |
3828 | break; | |
3829 | } | |
3830 | } | |
3831 | ||
3832 | if (fix->fx_r_type == BFD_RELOC_SH_USES) | |
3833 | { | |
3834 | /* We can't store the offset in the object file, since this | |
3835 | reloc does not take up any space, so we store it in r_offset. | |
94f592af | 3836 | The fx_addnumber field was set in md_apply_fix3. */ |
252b5132 RH |
3837 | intr->r_offset = fix->fx_addnumber; |
3838 | } | |
3839 | else if (fix->fx_r_type == BFD_RELOC_SH_COUNT) | |
3840 | { | |
3841 | /* We can't store the count in the object file, since this reloc | |
3842 | does not take up any space, so we store it in r_offset. The | |
3843 | fx_offset field was set when the fixup was created in | |
3844 | sh_coff_frob_file. */ | |
3845 | intr->r_offset = fix->fx_offset; | |
3846 | /* This reloc is always absolute. */ | |
3847 | symbol_ptr = NULL; | |
3848 | } | |
3849 | else if (fix->fx_r_type == BFD_RELOC_SH_ALIGN) | |
3850 | { | |
3851 | /* Store the alignment in the r_offset field. */ | |
3852 | intr->r_offset = fix->fx_offset; | |
3853 | /* This reloc is always absolute. */ | |
3854 | symbol_ptr = NULL; | |
3855 | } | |
3856 | else if (fix->fx_r_type == BFD_RELOC_SH_CODE | |
3857 | || fix->fx_r_type == BFD_RELOC_SH_DATA | |
3858 | || fix->fx_r_type == BFD_RELOC_SH_LABEL) | |
3859 | { | |
3860 | /* These relocs are always absolute. */ | |
3861 | symbol_ptr = NULL; | |
3862 | } | |
3863 | ||
3864 | /* Turn the segment of the symbol into an offset. */ | |
3865 | if (symbol_ptr != NULL) | |
3866 | { | |
3867 | dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot; | |
3868 | if (dot != NULL) | |
3869 | intr->r_symndx = dot->sy_number; | |
3870 | else | |
3871 | intr->r_symndx = symbol_ptr->sy_number; | |
3872 | } | |
3873 | else | |
3874 | intr->r_symndx = -1; | |
3875 | } | |
3876 | ||
3877 | #endif /* OBJ_COFF */ | |
3878 | #endif /* ! BFD_ASSEMBLER */ | |
3879 | ||
3880 | #ifdef BFD_ASSEMBLER | |
3881 | ||
3882 | /* Create a reloc. */ | |
3883 | ||
3884 | arelent * | |
3885 | tc_gen_reloc (section, fixp) | |
43841e91 | 3886 | asection *section ATTRIBUTE_UNUSED; |
252b5132 RH |
3887 | fixS *fixp; |
3888 | { | |
3889 | arelent *rel; | |
3890 | bfd_reloc_code_real_type r_type; | |
3891 | ||
3892 | rel = (arelent *) xmalloc (sizeof (arelent)); | |
49309057 ILT |
3893 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
3894 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
3895 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; |
3896 | ||
3897 | r_type = fixp->fx_r_type; | |
3898 | ||
3899 | if (SWITCH_TABLE (fixp)) | |
3900 | { | |
3901 | rel->addend = rel->address - S_GET_VALUE (fixp->fx_subsy); | |
3902 | if (r_type == BFD_RELOC_16) | |
3903 | r_type = BFD_RELOC_SH_SWITCH16; | |
3904 | else if (r_type == BFD_RELOC_8) | |
3905 | r_type = BFD_RELOC_8_PCREL; | |
3906 | else if (r_type == BFD_RELOC_32) | |
3907 | r_type = BFD_RELOC_SH_SWITCH32; | |
3908 | else | |
3909 | abort (); | |
3910 | } | |
3911 | else if (r_type == BFD_RELOC_SH_USES) | |
3912 | rel->addend = fixp->fx_addnumber; | |
3913 | else if (r_type == BFD_RELOC_SH_COUNT) | |
3914 | rel->addend = fixp->fx_offset; | |
3915 | else if (r_type == BFD_RELOC_SH_ALIGN) | |
3916 | rel->addend = fixp->fx_offset; | |
3917 | else if (r_type == BFD_RELOC_VTABLE_INHERIT | |
3918 | || r_type == BFD_RELOC_VTABLE_ENTRY) | |
3919 | rel->addend = fixp->fx_offset; | |
015551fc JR |
3920 | else if (r_type == BFD_RELOC_SH_LOOP_START |
3921 | || r_type == BFD_RELOC_SH_LOOP_END) | |
3922 | rel->addend = fixp->fx_offset; | |
3923 | else if (r_type == BFD_RELOC_SH_LABEL && fixp->fx_pcrel) | |
3924 | { | |
3925 | rel->addend = 0; | |
3926 | rel->address = rel->addend = fixp->fx_offset; | |
3927 | } | |
324bfcf3 AO |
3928 | #ifdef HAVE_SH64 |
3929 | else if (shmedia_init_reloc (rel, fixp)) | |
3930 | ; | |
3931 | #endif | |
252b5132 RH |
3932 | else if (fixp->fx_pcrel) |
3933 | rel->addend = fixp->fx_addnumber; | |
a1cc9221 AO |
3934 | else if (r_type == BFD_RELOC_32 || r_type == BFD_RELOC_32_GOTOFF) |
3935 | rel->addend = fixp->fx_addnumber; | |
252b5132 RH |
3936 | else |
3937 | rel->addend = 0; | |
3938 | ||
3939 | rel->howto = bfd_reloc_type_lookup (stdoutput, r_type); | |
a161fe53 | 3940 | if (rel->howto == NULL) |
252b5132 RH |
3941 | { |
3942 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
3943 | _("Cannot represent relocation type %s"), | |
3944 | bfd_get_reloc_code_name (r_type)); | |
3945 | /* Set howto to a garbage value so that we can keep going. */ | |
3946 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
3947 | assert (rel->howto != NULL); | |
3948 | } | |
3949 | ||
3950 | return rel; | |
3951 | } | |
3952 | ||
538cd60f AO |
3953 | #ifdef OBJ_ELF |
3954 | inline static char * | |
3955 | sh_end_of_match (cont, what) | |
3956 | char *cont, *what; | |
3957 | { | |
3958 | int len = strlen (what); | |
3959 | ||
3960 | if (strncasecmp (cont, what, strlen (what)) == 0 | |
3961 | && ! is_part_of_name (cont[len])) | |
3962 | return cont + len; | |
3963 | ||
3964 | return NULL; | |
5d6255fe | 3965 | } |
538cd60f AO |
3966 | |
3967 | int | |
3968 | sh_parse_name (name, exprP, nextcharP) | |
3969 | char const *name; | |
3970 | expressionS *exprP; | |
3971 | char *nextcharP; | |
3972 | { | |
3973 | char *next = input_line_pointer; | |
3974 | char *next_end; | |
3975 | int reloc_type; | |
3976 | segT segment; | |
3977 | ||
3978 | exprP->X_op_symbol = NULL; | |
3979 | ||
3980 | if (strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0) | |
3981 | { | |
3982 | if (! GOT_symbol) | |
3983 | GOT_symbol = symbol_find_or_make (name); | |
3984 | ||
3985 | exprP->X_add_symbol = GOT_symbol; | |
3986 | no_suffix: | |
3987 | /* If we have an absolute symbol or a reg, then we know its | |
3988 | value now. */ | |
3989 | segment = S_GET_SEGMENT (exprP->X_add_symbol); | |
3990 | if (segment == absolute_section) | |
3991 | { | |
3992 | exprP->X_op = O_constant; | |
3993 | exprP->X_add_number = S_GET_VALUE (exprP->X_add_symbol); | |
3994 | exprP->X_add_symbol = NULL; | |
3995 | } | |
3996 | else if (segment == reg_section) | |
3997 | { | |
3998 | exprP->X_op = O_register; | |
3999 | exprP->X_add_number = S_GET_VALUE (exprP->X_add_symbol); | |
4000 | exprP->X_add_symbol = NULL; | |
4001 | } | |
4002 | else | |
4003 | { | |
4004 | exprP->X_op = O_symbol; | |
4005 | exprP->X_add_number = 0; | |
4006 | } | |
4007 | ||
4008 | return 1; | |
4009 | } | |
4010 | ||
4011 | exprP->X_add_symbol = symbol_find_or_make (name); | |
5d6255fe | 4012 | |
538cd60f AO |
4013 | if (*nextcharP != '@') |
4014 | goto no_suffix; | |
4015 | else if ((next_end = sh_end_of_match (next + 1, "GOTOFF"))) | |
4016 | reloc_type = BFD_RELOC_32_GOTOFF; | |
324bfcf3 AO |
4017 | else if ((next_end = sh_end_of_match (next + 1, "GOTPLT"))) |
4018 | reloc_type = BFD_RELOC_SH_GOTPLT32; | |
538cd60f AO |
4019 | else if ((next_end = sh_end_of_match (next + 1, "GOT"))) |
4020 | reloc_type = BFD_RELOC_32_GOT_PCREL; | |
4021 | else if ((next_end = sh_end_of_match (next + 1, "PLT"))) | |
4022 | reloc_type = BFD_RELOC_32_PLT_PCREL; | |
9efb3b7b KK |
4023 | else if ((next_end = sh_end_of_match (next + 1, "TLSGD"))) |
4024 | reloc_type = BFD_RELOC_SH_TLS_GD_32; | |
4025 | else if ((next_end = sh_end_of_match (next + 1, "TLSLDM"))) | |
4026 | reloc_type = BFD_RELOC_SH_TLS_LD_32; | |
4027 | else if ((next_end = sh_end_of_match (next + 1, "GOTTPOFF"))) | |
4028 | reloc_type = BFD_RELOC_SH_TLS_IE_32; | |
4029 | else if ((next_end = sh_end_of_match (next + 1, "TPOFF"))) | |
4030 | reloc_type = BFD_RELOC_SH_TLS_LE_32; | |
4031 | else if ((next_end = sh_end_of_match (next + 1, "DTPOFF"))) | |
4032 | reloc_type = BFD_RELOC_SH_TLS_LDO_32; | |
538cd60f AO |
4033 | else |
4034 | goto no_suffix; | |
4035 | ||
4036 | *input_line_pointer = *nextcharP; | |
4037 | input_line_pointer = next_end; | |
4038 | *nextcharP = *input_line_pointer; | |
4039 | *input_line_pointer = '\0'; | |
4040 | ||
4041 | exprP->X_op = O_PIC_reloc; | |
4042 | exprP->X_add_number = 0; | |
4043 | exprP->X_md = reloc_type; | |
4044 | ||
4045 | return 1; | |
4046 | } | |
4047 | #endif | |
252b5132 | 4048 | #endif /* BFD_ASSEMBLER */ |