]>
Commit | Line | Data |
---|---|---|
b9adb4a6 | 1 | /* General "disassemble this chunk" code. Used for debugging. */ |
5bbe9299 | 2 | #include "config.h" |
b9adb4a6 | 3 | #include "dis-asm.h" |
b9adb4a6 | 4 | #include "elf.h" |
aa0aa4fa | 5 | #include <errno.h> |
b9adb4a6 | 6 | |
c6105c0a | 7 | #include "cpu.h" |
9307c4c1 | 8 | #include "disas.h" |
c6105c0a | 9 | |
b9adb4a6 | 10 | /* Filled in by elfload.c. Simplistic, but will do for now. */ |
e80cfcfc | 11 | struct syminfo *syminfos = NULL; |
b9adb4a6 | 12 | |
aa0aa4fa FB |
13 | /* Get LENGTH bytes from info's buffer, at target address memaddr. |
14 | Transfer them to myaddr. */ | |
15 | int | |
3a742b76 PB |
16 | buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length, |
17 | struct disassemble_info *info) | |
aa0aa4fa | 18 | { |
c6105c0a FB |
19 | if (memaddr < info->buffer_vma |
20 | || memaddr + length > info->buffer_vma + info->buffer_length) | |
21 | /* Out of bounds. Use EIO because GDB uses it. */ | |
22 | return EIO; | |
23 | memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length); | |
24 | return 0; | |
aa0aa4fa FB |
25 | } |
26 | ||
c6105c0a FB |
27 | /* Get LENGTH bytes from info's buffer, at target address memaddr. |
28 | Transfer them to myaddr. */ | |
29 | static int | |
c27004ec FB |
30 | target_read_memory (bfd_vma memaddr, |
31 | bfd_byte *myaddr, | |
32 | int length, | |
33 | struct disassemble_info *info) | |
c6105c0a | 34 | { |
e612a1f7 | 35 | cpu_memory_rw_debug(cpu_single_env, memaddr, myaddr, length, 0); |
c6105c0a FB |
36 | return 0; |
37 | } | |
c6105c0a | 38 | |
aa0aa4fa FB |
39 | /* Print an error message. We can assume that this is in response to |
40 | an error return from buffer_read_memory. */ | |
41 | void | |
3a742b76 | 42 | perror_memory (int status, bfd_vma memaddr, struct disassemble_info *info) |
aa0aa4fa FB |
43 | { |
44 | if (status != EIO) | |
45 | /* Can't happen. */ | |
46 | (*info->fprintf_func) (info->stream, "Unknown error %d\n", status); | |
47 | else | |
48 | /* Actually, address between memaddr and memaddr + len was | |
49 | out of bounds. */ | |
50 | (*info->fprintf_func) (info->stream, | |
26a76461 | 51 | "Address 0x%" PRIx64 " is out of bounds.\n", memaddr); |
aa0aa4fa FB |
52 | } |
53 | ||
a31f0531 | 54 | /* This could be in a separate file, to save minuscule amounts of space |
aa0aa4fa FB |
55 | in statically linked executables. */ |
56 | ||
57 | /* Just print the address is hex. This is included for completeness even | |
58 | though both GDB and objdump provide their own (to print symbolic | |
59 | addresses). */ | |
60 | ||
61 | void | |
3a742b76 | 62 | generic_print_address (bfd_vma addr, struct disassemble_info *info) |
aa0aa4fa | 63 | { |
26a76461 | 64 | (*info->fprintf_func) (info->stream, "0x%" PRIx64, addr); |
aa0aa4fa FB |
65 | } |
66 | ||
67 | /* Just return the given address. */ | |
68 | ||
69 | int | |
3a742b76 | 70 | generic_symbol_at_address (bfd_vma addr, struct disassemble_info *info) |
aa0aa4fa FB |
71 | { |
72 | return 1; | |
73 | } | |
74 | ||
903ec55c AJ |
75 | bfd_vma bfd_getl64 (const bfd_byte *addr) |
76 | { | |
77 | unsigned long long v; | |
78 | ||
79 | v = (unsigned long long) addr[0]; | |
80 | v |= (unsigned long long) addr[1] << 8; | |
81 | v |= (unsigned long long) addr[2] << 16; | |
82 | v |= (unsigned long long) addr[3] << 24; | |
83 | v |= (unsigned long long) addr[4] << 32; | |
84 | v |= (unsigned long long) addr[5] << 40; | |
85 | v |= (unsigned long long) addr[6] << 48; | |
86 | v |= (unsigned long long) addr[7] << 56; | |
87 | return (bfd_vma) v; | |
88 | } | |
89 | ||
aa0aa4fa FB |
90 | bfd_vma bfd_getl32 (const bfd_byte *addr) |
91 | { | |
92 | unsigned long v; | |
93 | ||
94 | v = (unsigned long) addr[0]; | |
95 | v |= (unsigned long) addr[1] << 8; | |
96 | v |= (unsigned long) addr[2] << 16; | |
97 | v |= (unsigned long) addr[3] << 24; | |
98 | return (bfd_vma) v; | |
99 | } | |
100 | ||
101 | bfd_vma bfd_getb32 (const bfd_byte *addr) | |
102 | { | |
103 | unsigned long v; | |
104 | ||
105 | v = (unsigned long) addr[0] << 24; | |
106 | v |= (unsigned long) addr[1] << 16; | |
107 | v |= (unsigned long) addr[2] << 8; | |
108 | v |= (unsigned long) addr[3]; | |
109 | return (bfd_vma) v; | |
110 | } | |
111 | ||
6af0bf9c FB |
112 | bfd_vma bfd_getl16 (const bfd_byte *addr) |
113 | { | |
114 | unsigned long v; | |
115 | ||
116 | v = (unsigned long) addr[0]; | |
117 | v |= (unsigned long) addr[1] << 8; | |
118 | return (bfd_vma) v; | |
119 | } | |
120 | ||
121 | bfd_vma bfd_getb16 (const bfd_byte *addr) | |
122 | { | |
123 | unsigned long v; | |
124 | ||
125 | v = (unsigned long) addr[0] << 24; | |
126 | v |= (unsigned long) addr[1] << 16; | |
127 | return (bfd_vma) v; | |
128 | } | |
129 | ||
c2d551ff FB |
130 | #ifdef TARGET_ARM |
131 | static int | |
132 | print_insn_thumb1(bfd_vma pc, disassemble_info *info) | |
133 | { | |
134 | return print_insn_arm(pc | 1, info); | |
135 | } | |
136 | #endif | |
137 | ||
e91c8a77 | 138 | /* Disassemble this for me please... (debugging). 'flags' has the following |
c2d551ff | 139 | values: |
e99722f6 | 140 | i386 - 1 means 16 bit code, 2 means 64 bit code |
d8fd2954 | 141 | arm - bit 0 = thumb, bit 1 = reverse endian |
6a00d601 | 142 | ppc - nonzero means little endian |
c2d551ff FB |
143 | other targets - unused |
144 | */ | |
83b34f8b | 145 | void target_disas(FILE *out, target_ulong code, target_ulong size, int flags) |
b9adb4a6 | 146 | { |
c27004ec | 147 | target_ulong pc; |
b9adb4a6 FB |
148 | int count; |
149 | struct disassemble_info disasm_info; | |
150 | int (*print_insn)(bfd_vma pc, disassemble_info *info); | |
151 | ||
152 | INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf); | |
153 | ||
c27004ec FB |
154 | disasm_info.read_memory_func = target_read_memory; |
155 | disasm_info.buffer_vma = code; | |
156 | disasm_info.buffer_length = size; | |
157 | ||
158 | #ifdef TARGET_WORDS_BIGENDIAN | |
159 | disasm_info.endian = BFD_ENDIAN_BIG; | |
160 | #else | |
161 | disasm_info.endian = BFD_ENDIAN_LITTLE; | |
162 | #endif | |
163 | #if defined(TARGET_I386) | |
164 | if (flags == 2) | |
165 | disasm_info.mach = bfd_mach_x86_64; | |
5fafdf24 | 166 | else if (flags == 1) |
c27004ec FB |
167 | disasm_info.mach = bfd_mach_i386_i8086; |
168 | else | |
169 | disasm_info.mach = bfd_mach_i386_i386; | |
170 | print_insn = print_insn_i386; | |
171 | #elif defined(TARGET_ARM) | |
d8fd2954 PB |
172 | if (flags & 1) { |
173 | print_insn = print_insn_thumb1; | |
174 | } else { | |
175 | print_insn = print_insn_arm; | |
176 | } | |
177 | if (flags & 2) { | |
178 | #ifdef TARGET_WORDS_BIGENDIAN | |
179 | disasm_info.endian = BFD_ENDIAN_LITTLE; | |
180 | #else | |
181 | disasm_info.endian = BFD_ENDIAN_BIG; | |
182 | #endif | |
183 | } | |
c27004ec FB |
184 | #elif defined(TARGET_SPARC) |
185 | print_insn = print_insn_sparc; | |
3475187d FB |
186 | #ifdef TARGET_SPARC64 |
187 | disasm_info.mach = bfd_mach_sparc_v9b; | |
3b46e624 | 188 | #endif |
c27004ec | 189 | #elif defined(TARGET_PPC) |
237c0af0 | 190 | if (flags >> 16) |
111bfab3 | 191 | disasm_info.endian = BFD_ENDIAN_LITTLE; |
237c0af0 JM |
192 | if (flags & 0xFFFF) { |
193 | /* If we have a precise definitions of the instructions set, use it */ | |
194 | disasm_info.mach = flags & 0xFFFF; | |
195 | } else { | |
a2458627 | 196 | #ifdef TARGET_PPC64 |
237c0af0 | 197 | disasm_info.mach = bfd_mach_ppc64; |
a2458627 | 198 | #else |
237c0af0 | 199 | disasm_info.mach = bfd_mach_ppc; |
a2458627 | 200 | #endif |
237c0af0 | 201 | } |
c27004ec | 202 | print_insn = print_insn_ppc; |
e6e5906b PB |
203 | #elif defined(TARGET_M68K) |
204 | print_insn = print_insn_m68k; | |
6af0bf9c | 205 | #elif defined(TARGET_MIPS) |
76b3030c | 206 | #ifdef TARGET_WORDS_BIGENDIAN |
6af0bf9c | 207 | print_insn = print_insn_big_mips; |
76b3030c FB |
208 | #else |
209 | print_insn = print_insn_little_mips; | |
210 | #endif | |
fdf9b3e8 FB |
211 | #elif defined(TARGET_SH4) |
212 | disasm_info.mach = bfd_mach_sh4; | |
213 | print_insn = print_insn_sh; | |
eddf68a6 | 214 | #elif defined(TARGET_ALPHA) |
b9bec751 | 215 | disasm_info.mach = bfd_mach_alpha_ev6; |
eddf68a6 | 216 | print_insn = print_insn_alpha; |
a25fd137 | 217 | #elif defined(TARGET_CRIS) |
b09cd072 EI |
218 | if (flags != 32) { |
219 | disasm_info.mach = bfd_mach_cris_v0_v10; | |
220 | print_insn = print_insn_crisv10; | |
221 | } else { | |
222 | disasm_info.mach = bfd_mach_cris_v32; | |
223 | print_insn = print_insn_crisv32; | |
224 | } | |
db500609 UH |
225 | #elif defined(TARGET_S390X) |
226 | disasm_info.mach = bfd_mach_s390_64; | |
227 | print_insn = print_insn_s390; | |
e90e390c EI |
228 | #elif defined(TARGET_MICROBLAZE) |
229 | disasm_info.mach = bfd_arch_microblaze; | |
230 | print_insn = print_insn_microblaze; | |
79368f49 MW |
231 | #elif defined(TARGET_LM32) |
232 | disasm_info.mach = bfd_mach_lm32; | |
233 | print_insn = print_insn_lm32; | |
c27004ec | 234 | #else |
b8076a74 FB |
235 | fprintf(out, "0x" TARGET_FMT_lx |
236 | ": Asm output not supported on this arch\n", code); | |
c27004ec | 237 | return; |
c6105c0a FB |
238 | #endif |
239 | ||
7e000c2e | 240 | for (pc = code; size > 0; pc += count, size -= count) { |
fa15e030 | 241 | fprintf(out, "0x" TARGET_FMT_lx ": ", pc); |
c27004ec FB |
242 | count = print_insn(pc, &disasm_info); |
243 | #if 0 | |
244 | { | |
245 | int i; | |
246 | uint8_t b; | |
247 | fprintf(out, " {"); | |
248 | for(i = 0; i < count; i++) { | |
249 | target_read_memory(pc + i, &b, 1, &disasm_info); | |
250 | fprintf(out, " %02x", b); | |
251 | } | |
252 | fprintf(out, " }"); | |
253 | } | |
254 | #endif | |
255 | fprintf(out, "\n"); | |
256 | if (count < 0) | |
257 | break; | |
754d00ae | 258 | if (size < count) { |
259 | fprintf(out, | |
260 | "Disassembler disagrees with translator over instruction " | |
261 | "decoding\n" | |
262 | "Please report this to [email protected]\n"); | |
263 | break; | |
264 | } | |
c27004ec FB |
265 | } |
266 | } | |
267 | ||
268 | /* Disassemble this for me please... (debugging). */ | |
269 | void disas(FILE *out, void *code, unsigned long size) | |
270 | { | |
b0b0f1c9 | 271 | uintptr_t pc; |
c27004ec FB |
272 | int count; |
273 | struct disassemble_info disasm_info; | |
274 | int (*print_insn)(bfd_vma pc, disassemble_info *info); | |
275 | ||
276 | INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf); | |
277 | ||
b9adb4a6 | 278 | disasm_info.buffer = code; |
b0b0f1c9 | 279 | disasm_info.buffer_vma = (uintptr_t)code; |
b9adb4a6 FB |
280 | disasm_info.buffer_length = size; |
281 | ||
e2542fe2 | 282 | #ifdef HOST_WORDS_BIGENDIAN |
c27004ec | 283 | disasm_info.endian = BFD_ENDIAN_BIG; |
b9adb4a6 | 284 | #else |
c27004ec | 285 | disasm_info.endian = BFD_ENDIAN_LITTLE; |
b9adb4a6 | 286 | #endif |
5826e519 SW |
287 | #if defined(CONFIG_TCG_INTERPRETER) |
288 | print_insn = print_insn_tci; | |
289 | #elif defined(__i386__) | |
c27004ec FB |
290 | disasm_info.mach = bfd_mach_i386_i386; |
291 | print_insn = print_insn_i386; | |
bc51c5c9 | 292 | #elif defined(__x86_64__) |
c27004ec FB |
293 | disasm_info.mach = bfd_mach_x86_64; |
294 | print_insn = print_insn_i386; | |
e58ffeb3 | 295 | #elif defined(_ARCH_PPC) |
c27004ec | 296 | print_insn = print_insn_ppc; |
a993ba85 | 297 | #elif defined(__alpha__) |
c27004ec | 298 | print_insn = print_insn_alpha; |
aa0aa4fa | 299 | #elif defined(__sparc__) |
c27004ec | 300 | print_insn = print_insn_sparc; |
6ecd4534 BS |
301 | #if defined(__sparc_v8plus__) || defined(__sparc_v8plusa__) || defined(__sparc_v9__) |
302 | disasm_info.mach = bfd_mach_sparc_v9b; | |
303 | #endif | |
5fafdf24 | 304 | #elif defined(__arm__) |
c27004ec | 305 | print_insn = print_insn_arm; |
6af0bf9c FB |
306 | #elif defined(__MIPSEB__) |
307 | print_insn = print_insn_big_mips; | |
308 | #elif defined(__MIPSEL__) | |
309 | print_insn = print_insn_little_mips; | |
48024e4a FB |
310 | #elif defined(__m68k__) |
311 | print_insn = print_insn_m68k; | |
8f860bb8 TS |
312 | #elif defined(__s390__) |
313 | print_insn = print_insn_s390; | |
f54b3f92 AJ |
314 | #elif defined(__hppa__) |
315 | print_insn = print_insn_hppa; | |
903ec55c AJ |
316 | #elif defined(__ia64__) |
317 | print_insn = print_insn_ia64; | |
b9adb4a6 | 318 | #else |
b8076a74 FB |
319 | fprintf(out, "0x%lx: Asm output not supported on this arch\n", |
320 | (long) code); | |
c27004ec | 321 | return; |
b9adb4a6 | 322 | #endif |
b0b0f1c9 SW |
323 | for (pc = (uintptr_t)code; size > 0; pc += count, size -= count) { |
324 | fprintf(out, "0x%08" PRIxPTR ": ", pc); | |
c27004ec | 325 | count = print_insn(pc, &disasm_info); |
b9adb4a6 FB |
326 | fprintf(out, "\n"); |
327 | if (count < 0) | |
328 | break; | |
329 | } | |
330 | } | |
331 | ||
332 | /* Look up symbol for debugging purpose. Returns "" if unknown. */ | |
c27004ec | 333 | const char *lookup_symbol(target_ulong orig_addr) |
b9adb4a6 | 334 | { |
49918a75 | 335 | const char *symbol = ""; |
e80cfcfc | 336 | struct syminfo *s; |
3b46e624 | 337 | |
e80cfcfc | 338 | for (s = syminfos; s; s = s->next) { |
49918a75 PB |
339 | symbol = s->lookup_symbol(s, orig_addr); |
340 | if (symbol[0] != '\0') { | |
341 | break; | |
342 | } | |
b9adb4a6 | 343 | } |
49918a75 PB |
344 | |
345 | return symbol; | |
b9adb4a6 | 346 | } |
9307c4c1 FB |
347 | |
348 | #if !defined(CONFIG_USER_ONLY) | |
349 | ||
376253ec | 350 | #include "monitor.h" |
3d2cfdf1 | 351 | |
9307c4c1 | 352 | static int monitor_disas_is_physical; |
9349b4f9 | 353 | static CPUArchState *monitor_disas_env; |
9307c4c1 FB |
354 | |
355 | static int | |
a5f1b965 BS |
356 | monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length, |
357 | struct disassemble_info *info) | |
9307c4c1 FB |
358 | { |
359 | if (monitor_disas_is_physical) { | |
54f7b4a3 | 360 | cpu_physical_memory_read(memaddr, myaddr, length); |
9307c4c1 | 361 | } else { |
6a00d601 | 362 | cpu_memory_rw_debug(monitor_disas_env, memaddr,myaddr, length, 0); |
9307c4c1 FB |
363 | } |
364 | return 0; | |
365 | } | |
366 | ||
8b7968f7 SW |
367 | static int GCC_FMT_ATTR(2, 3) |
368 | monitor_fprintf(FILE *stream, const char *fmt, ...) | |
3d2cfdf1 FB |
369 | { |
370 | va_list ap; | |
371 | va_start(ap, fmt); | |
376253ec | 372 | monitor_vprintf((Monitor *)stream, fmt, ap); |
3d2cfdf1 FB |
373 | va_end(ap); |
374 | return 0; | |
375 | } | |
376 | ||
9349b4f9 | 377 | void monitor_disas(Monitor *mon, CPUArchState *env, |
6a00d601 | 378 | target_ulong pc, int nb_insn, int is_physical, int flags) |
9307c4c1 | 379 | { |
9307c4c1 FB |
380 | int count, i; |
381 | struct disassemble_info disasm_info; | |
382 | int (*print_insn)(bfd_vma pc, disassemble_info *info); | |
383 | ||
376253ec | 384 | INIT_DISASSEMBLE_INFO(disasm_info, (FILE *)mon, monitor_fprintf); |
9307c4c1 | 385 | |
6a00d601 | 386 | monitor_disas_env = env; |
9307c4c1 FB |
387 | monitor_disas_is_physical = is_physical; |
388 | disasm_info.read_memory_func = monitor_read_memory; | |
389 | ||
390 | disasm_info.buffer_vma = pc; | |
391 | ||
392 | #ifdef TARGET_WORDS_BIGENDIAN | |
393 | disasm_info.endian = BFD_ENDIAN_BIG; | |
394 | #else | |
395 | disasm_info.endian = BFD_ENDIAN_LITTLE; | |
396 | #endif | |
397 | #if defined(TARGET_I386) | |
fa15e030 FB |
398 | if (flags == 2) |
399 | disasm_info.mach = bfd_mach_x86_64; | |
5fafdf24 | 400 | else if (flags == 1) |
9307c4c1 | 401 | disasm_info.mach = bfd_mach_i386_i8086; |
fa15e030 FB |
402 | else |
403 | disasm_info.mach = bfd_mach_i386_i386; | |
9307c4c1 FB |
404 | print_insn = print_insn_i386; |
405 | #elif defined(TARGET_ARM) | |
406 | print_insn = print_insn_arm; | |
cbd669da TS |
407 | #elif defined(TARGET_ALPHA) |
408 | print_insn = print_insn_alpha; | |
9307c4c1 FB |
409 | #elif defined(TARGET_SPARC) |
410 | print_insn = print_insn_sparc; | |
682c4f15 BS |
411 | #ifdef TARGET_SPARC64 |
412 | disasm_info.mach = bfd_mach_sparc_v9b; | |
413 | #endif | |
9307c4c1 | 414 | #elif defined(TARGET_PPC) |
a2458627 FB |
415 | #ifdef TARGET_PPC64 |
416 | disasm_info.mach = bfd_mach_ppc64; | |
417 | #else | |
418 | disasm_info.mach = bfd_mach_ppc; | |
419 | #endif | |
9307c4c1 | 420 | print_insn = print_insn_ppc; |
e6e5906b PB |
421 | #elif defined(TARGET_M68K) |
422 | print_insn = print_insn_m68k; | |
6af0bf9c | 423 | #elif defined(TARGET_MIPS) |
76b3030c | 424 | #ifdef TARGET_WORDS_BIGENDIAN |
6af0bf9c | 425 | print_insn = print_insn_big_mips; |
76b3030c FB |
426 | #else |
427 | print_insn = print_insn_little_mips; | |
428 | #endif | |
b4e1f077 MD |
429 | #elif defined(TARGET_SH4) |
430 | disasm_info.mach = bfd_mach_sh4; | |
431 | print_insn = print_insn_sh; | |
db500609 UH |
432 | #elif defined(TARGET_S390X) |
433 | disasm_info.mach = bfd_mach_s390_64; | |
434 | print_insn = print_insn_s390; | |
79368f49 MW |
435 | #elif defined(TARGET_LM32) |
436 | disasm_info.mach = bfd_mach_lm32; | |
437 | print_insn = print_insn_lm32; | |
9307c4c1 | 438 | #else |
376253ec AL |
439 | monitor_printf(mon, "0x" TARGET_FMT_lx |
440 | ": Asm output not supported on this arch\n", pc); | |
9307c4c1 FB |
441 | return; |
442 | #endif | |
443 | ||
444 | for(i = 0; i < nb_insn; i++) { | |
376253ec | 445 | monitor_printf(mon, "0x" TARGET_FMT_lx ": ", pc); |
9307c4c1 | 446 | count = print_insn(pc, &disasm_info); |
376253ec | 447 | monitor_printf(mon, "\n"); |
9307c4c1 FB |
448 | if (count < 0) |
449 | break; | |
450 | pc += count; | |
451 | } | |
452 | } | |
453 | #endif |