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Commit | Line | Data |
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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 FB |
7 | #include "cpu.h" |
8 | #include "exec-all.h" | |
9307c4c1 | 9 | #include "disas.h" |
c6105c0a | 10 | |
b9adb4a6 | 11 | /* Filled in by elfload.c. Simplistic, but will do for now. */ |
e80cfcfc | 12 | struct syminfo *syminfos = NULL; |
b9adb4a6 | 13 | |
aa0aa4fa FB |
14 | /* Get LENGTH bytes from info's buffer, at target address memaddr. |
15 | Transfer them to myaddr. */ | |
16 | int | |
3a742b76 PB |
17 | buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length, |
18 | struct disassemble_info *info) | |
aa0aa4fa | 19 | { |
c6105c0a FB |
20 | if (memaddr < info->buffer_vma |
21 | || memaddr + length > info->buffer_vma + info->buffer_length) | |
22 | /* Out of bounds. Use EIO because GDB uses it. */ | |
23 | return EIO; | |
24 | memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length); | |
25 | return 0; | |
aa0aa4fa FB |
26 | } |
27 | ||
c6105c0a FB |
28 | /* Get LENGTH bytes from info's buffer, at target address memaddr. |
29 | Transfer them to myaddr. */ | |
30 | static int | |
c27004ec FB |
31 | target_read_memory (bfd_vma memaddr, |
32 | bfd_byte *myaddr, | |
33 | int length, | |
34 | struct disassemble_info *info) | |
c6105c0a | 35 | { |
e612a1f7 | 36 | cpu_memory_rw_debug(cpu_single_env, memaddr, myaddr, length, 0); |
c6105c0a FB |
37 | return 0; |
38 | } | |
c6105c0a | 39 | |
aa0aa4fa FB |
40 | /* Print an error message. We can assume that this is in response to |
41 | an error return from buffer_read_memory. */ | |
42 | void | |
3a742b76 | 43 | perror_memory (int status, bfd_vma memaddr, struct disassemble_info *info) |
aa0aa4fa FB |
44 | { |
45 | if (status != EIO) | |
46 | /* Can't happen. */ | |
47 | (*info->fprintf_func) (info->stream, "Unknown error %d\n", status); | |
48 | else | |
49 | /* Actually, address between memaddr and memaddr + len was | |
50 | out of bounds. */ | |
51 | (*info->fprintf_func) (info->stream, | |
26a76461 | 52 | "Address 0x%" PRIx64 " is out of bounds.\n", memaddr); |
aa0aa4fa FB |
53 | } |
54 | ||
55 | /* This could be in a separate file, to save miniscule amounts of space | |
56 | in statically linked executables. */ | |
57 | ||
58 | /* Just print the address is hex. This is included for completeness even | |
59 | though both GDB and objdump provide their own (to print symbolic | |
60 | addresses). */ | |
61 | ||
62 | void | |
3a742b76 | 63 | generic_print_address (bfd_vma addr, struct disassemble_info *info) |
aa0aa4fa | 64 | { |
26a76461 | 65 | (*info->fprintf_func) (info->stream, "0x%" PRIx64, addr); |
aa0aa4fa FB |
66 | } |
67 | ||
68 | /* Just return the given address. */ | |
69 | ||
70 | int | |
3a742b76 | 71 | generic_symbol_at_address (bfd_vma addr, struct disassemble_info *info) |
aa0aa4fa FB |
72 | { |
73 | return 1; | |
74 | } | |
75 | ||
903ec55c AJ |
76 | bfd_vma bfd_getl64 (const bfd_byte *addr) |
77 | { | |
78 | unsigned long long v; | |
79 | ||
80 | v = (unsigned long long) addr[0]; | |
81 | v |= (unsigned long long) addr[1] << 8; | |
82 | v |= (unsigned long long) addr[2] << 16; | |
83 | v |= (unsigned long long) addr[3] << 24; | |
84 | v |= (unsigned long long) addr[4] << 32; | |
85 | v |= (unsigned long long) addr[5] << 40; | |
86 | v |= (unsigned long long) addr[6] << 48; | |
87 | v |= (unsigned long long) addr[7] << 56; | |
88 | return (bfd_vma) v; | |
89 | } | |
90 | ||
aa0aa4fa FB |
91 | bfd_vma bfd_getl32 (const bfd_byte *addr) |
92 | { | |
93 | unsigned long v; | |
94 | ||
95 | v = (unsigned long) addr[0]; | |
96 | v |= (unsigned long) addr[1] << 8; | |
97 | v |= (unsigned long) addr[2] << 16; | |
98 | v |= (unsigned long) addr[3] << 24; | |
99 | return (bfd_vma) v; | |
100 | } | |
101 | ||
102 | bfd_vma bfd_getb32 (const bfd_byte *addr) | |
103 | { | |
104 | unsigned long v; | |
105 | ||
106 | v = (unsigned long) addr[0] << 24; | |
107 | v |= (unsigned long) addr[1] << 16; | |
108 | v |= (unsigned long) addr[2] << 8; | |
109 | v |= (unsigned long) addr[3]; | |
110 | return (bfd_vma) v; | |
111 | } | |
112 | ||
6af0bf9c FB |
113 | bfd_vma bfd_getl16 (const bfd_byte *addr) |
114 | { | |
115 | unsigned long v; | |
116 | ||
117 | v = (unsigned long) addr[0]; | |
118 | v |= (unsigned long) addr[1] << 8; | |
119 | return (bfd_vma) v; | |
120 | } | |
121 | ||
122 | bfd_vma bfd_getb16 (const bfd_byte *addr) | |
123 | { | |
124 | unsigned long v; | |
125 | ||
126 | v = (unsigned long) addr[0] << 24; | |
127 | v |= (unsigned long) addr[1] << 16; | |
128 | return (bfd_vma) v; | |
129 | } | |
130 | ||
c2d551ff FB |
131 | #ifdef TARGET_ARM |
132 | static int | |
133 | print_insn_thumb1(bfd_vma pc, disassemble_info *info) | |
134 | { | |
135 | return print_insn_arm(pc | 1, info); | |
136 | } | |
137 | #endif | |
138 | ||
e91c8a77 | 139 | /* Disassemble this for me please... (debugging). 'flags' has the following |
c2d551ff FB |
140 | values: |
141 | i386 - nonzero means 16 bit code | |
5fafdf24 | 142 | arm - nonzero means thumb code |
6a00d601 | 143 | ppc - nonzero means little endian |
c2d551ff FB |
144 | other targets - unused |
145 | */ | |
83b34f8b | 146 | void target_disas(FILE *out, target_ulong code, target_ulong size, int flags) |
b9adb4a6 | 147 | { |
c27004ec | 148 | target_ulong pc; |
b9adb4a6 FB |
149 | int count; |
150 | struct disassemble_info disasm_info; | |
151 | int (*print_insn)(bfd_vma pc, disassemble_info *info); | |
152 | ||
153 | INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf); | |
154 | ||
c27004ec FB |
155 | disasm_info.read_memory_func = target_read_memory; |
156 | disasm_info.buffer_vma = code; | |
157 | disasm_info.buffer_length = size; | |
158 | ||
159 | #ifdef TARGET_WORDS_BIGENDIAN | |
160 | disasm_info.endian = BFD_ENDIAN_BIG; | |
161 | #else | |
162 | disasm_info.endian = BFD_ENDIAN_LITTLE; | |
163 | #endif | |
164 | #if defined(TARGET_I386) | |
165 | if (flags == 2) | |
166 | disasm_info.mach = bfd_mach_x86_64; | |
5fafdf24 | 167 | else if (flags == 1) |
c27004ec FB |
168 | disasm_info.mach = bfd_mach_i386_i8086; |
169 | else | |
170 | disasm_info.mach = bfd_mach_i386_i386; | |
171 | print_insn = print_insn_i386; | |
172 | #elif defined(TARGET_ARM) | |
c2d551ff FB |
173 | if (flags) |
174 | print_insn = print_insn_thumb1; | |
175 | else | |
176 | print_insn = print_insn_arm; | |
c27004ec FB |
177 | #elif defined(TARGET_SPARC) |
178 | print_insn = print_insn_sparc; | |
3475187d FB |
179 | #ifdef TARGET_SPARC64 |
180 | disasm_info.mach = bfd_mach_sparc_v9b; | |
3b46e624 | 181 | #endif |
c27004ec | 182 | #elif defined(TARGET_PPC) |
237c0af0 | 183 | if (flags >> 16) |
111bfab3 | 184 | disasm_info.endian = BFD_ENDIAN_LITTLE; |
237c0af0 JM |
185 | if (flags & 0xFFFF) { |
186 | /* If we have a precise definitions of the instructions set, use it */ | |
187 | disasm_info.mach = flags & 0xFFFF; | |
188 | } else { | |
a2458627 | 189 | #ifdef TARGET_PPC64 |
237c0af0 | 190 | disasm_info.mach = bfd_mach_ppc64; |
a2458627 | 191 | #else |
237c0af0 | 192 | disasm_info.mach = bfd_mach_ppc; |
a2458627 | 193 | #endif |
237c0af0 | 194 | } |
c27004ec | 195 | print_insn = print_insn_ppc; |
e6e5906b PB |
196 | #elif defined(TARGET_M68K) |
197 | print_insn = print_insn_m68k; | |
6af0bf9c | 198 | #elif defined(TARGET_MIPS) |
76b3030c | 199 | #ifdef TARGET_WORDS_BIGENDIAN |
6af0bf9c | 200 | print_insn = print_insn_big_mips; |
76b3030c FB |
201 | #else |
202 | print_insn = print_insn_little_mips; | |
203 | #endif | |
fdf9b3e8 FB |
204 | #elif defined(TARGET_SH4) |
205 | disasm_info.mach = bfd_mach_sh4; | |
206 | print_insn = print_insn_sh; | |
eddf68a6 JM |
207 | #elif defined(TARGET_ALPHA) |
208 | disasm_info.mach = bfd_mach_alpha; | |
209 | print_insn = print_insn_alpha; | |
a25fd137 TS |
210 | #elif defined(TARGET_CRIS) |
211 | disasm_info.mach = bfd_mach_cris_v32; | |
212 | print_insn = print_insn_crisv32; | |
e90e390c EI |
213 | #elif defined(TARGET_MICROBLAZE) |
214 | disasm_info.mach = bfd_arch_microblaze; | |
215 | print_insn = print_insn_microblaze; | |
c27004ec | 216 | #else |
b8076a74 FB |
217 | fprintf(out, "0x" TARGET_FMT_lx |
218 | ": Asm output not supported on this arch\n", code); | |
c27004ec | 219 | return; |
c6105c0a FB |
220 | #endif |
221 | ||
7e000c2e | 222 | for (pc = code; size > 0; pc += count, size -= count) { |
fa15e030 | 223 | fprintf(out, "0x" TARGET_FMT_lx ": ", pc); |
c27004ec FB |
224 | count = print_insn(pc, &disasm_info); |
225 | #if 0 | |
226 | { | |
227 | int i; | |
228 | uint8_t b; | |
229 | fprintf(out, " {"); | |
230 | for(i = 0; i < count; i++) { | |
231 | target_read_memory(pc + i, &b, 1, &disasm_info); | |
232 | fprintf(out, " %02x", b); | |
233 | } | |
234 | fprintf(out, " }"); | |
235 | } | |
236 | #endif | |
237 | fprintf(out, "\n"); | |
238 | if (count < 0) | |
239 | break; | |
754d00ae | 240 | if (size < count) { |
241 | fprintf(out, | |
242 | "Disassembler disagrees with translator over instruction " | |
243 | "decoding\n" | |
244 | "Please report this to [email protected]\n"); | |
245 | break; | |
246 | } | |
c27004ec FB |
247 | } |
248 | } | |
249 | ||
250 | /* Disassemble this for me please... (debugging). */ | |
251 | void disas(FILE *out, void *code, unsigned long size) | |
252 | { | |
253 | unsigned long pc; | |
254 | int count; | |
255 | struct disassemble_info disasm_info; | |
256 | int (*print_insn)(bfd_vma pc, disassemble_info *info); | |
257 | ||
258 | INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf); | |
259 | ||
b9adb4a6 FB |
260 | disasm_info.buffer = code; |
261 | disasm_info.buffer_vma = (unsigned long)code; | |
262 | disasm_info.buffer_length = size; | |
263 | ||
e2542fe2 | 264 | #ifdef HOST_WORDS_BIGENDIAN |
c27004ec | 265 | disasm_info.endian = BFD_ENDIAN_BIG; |
b9adb4a6 | 266 | #else |
c27004ec | 267 | disasm_info.endian = BFD_ENDIAN_LITTLE; |
b9adb4a6 | 268 | #endif |
bc51c5c9 | 269 | #if defined(__i386__) |
c27004ec FB |
270 | disasm_info.mach = bfd_mach_i386_i386; |
271 | print_insn = print_insn_i386; | |
bc51c5c9 | 272 | #elif defined(__x86_64__) |
c27004ec FB |
273 | disasm_info.mach = bfd_mach_x86_64; |
274 | print_insn = print_insn_i386; | |
e58ffeb3 | 275 | #elif defined(_ARCH_PPC) |
c27004ec | 276 | print_insn = print_insn_ppc; |
a993ba85 | 277 | #elif defined(__alpha__) |
c27004ec | 278 | print_insn = print_insn_alpha; |
aa0aa4fa | 279 | #elif defined(__sparc__) |
c27004ec | 280 | print_insn = print_insn_sparc; |
6ecd4534 BS |
281 | #if defined(__sparc_v8plus__) || defined(__sparc_v8plusa__) || defined(__sparc_v9__) |
282 | disasm_info.mach = bfd_mach_sparc_v9b; | |
283 | #endif | |
5fafdf24 | 284 | #elif defined(__arm__) |
c27004ec | 285 | print_insn = print_insn_arm; |
6af0bf9c FB |
286 | #elif defined(__MIPSEB__) |
287 | print_insn = print_insn_big_mips; | |
288 | #elif defined(__MIPSEL__) | |
289 | print_insn = print_insn_little_mips; | |
48024e4a FB |
290 | #elif defined(__m68k__) |
291 | print_insn = print_insn_m68k; | |
8f860bb8 TS |
292 | #elif defined(__s390__) |
293 | print_insn = print_insn_s390; | |
f54b3f92 AJ |
294 | #elif defined(__hppa__) |
295 | print_insn = print_insn_hppa; | |
903ec55c AJ |
296 | #elif defined(__ia64__) |
297 | print_insn = print_insn_ia64; | |
b9adb4a6 | 298 | #else |
b8076a74 FB |
299 | fprintf(out, "0x%lx: Asm output not supported on this arch\n", |
300 | (long) code); | |
c27004ec | 301 | return; |
b9adb4a6 | 302 | #endif |
7e000c2e | 303 | for (pc = (unsigned long)code; size > 0; pc += count, size -= count) { |
c27004ec | 304 | fprintf(out, "0x%08lx: ", pc); |
aa0aa4fa | 305 | #ifdef __arm__ |
46152182 | 306 | /* since data is included in the code, it is better to |
aa0aa4fa | 307 | display code data too */ |
46152182 | 308 | fprintf(out, "%08x ", (int)bfd_getl32((const bfd_byte *)pc)); |
aa0aa4fa | 309 | #endif |
c27004ec | 310 | count = print_insn(pc, &disasm_info); |
b9adb4a6 FB |
311 | fprintf(out, "\n"); |
312 | if (count < 0) | |
313 | break; | |
314 | } | |
315 | } | |
316 | ||
317 | /* Look up symbol for debugging purpose. Returns "" if unknown. */ | |
c27004ec | 318 | const char *lookup_symbol(target_ulong orig_addr) |
b9adb4a6 | 319 | { |
49918a75 | 320 | const char *symbol = ""; |
e80cfcfc | 321 | struct syminfo *s; |
3b46e624 | 322 | |
e80cfcfc | 323 | for (s = syminfos; s; s = s->next) { |
49918a75 PB |
324 | symbol = s->lookup_symbol(s, orig_addr); |
325 | if (symbol[0] != '\0') { | |
326 | break; | |
327 | } | |
b9adb4a6 | 328 | } |
49918a75 PB |
329 | |
330 | return symbol; | |
b9adb4a6 | 331 | } |
9307c4c1 FB |
332 | |
333 | #if !defined(CONFIG_USER_ONLY) | |
334 | ||
376253ec | 335 | #include "monitor.h" |
3d2cfdf1 | 336 | |
9307c4c1 | 337 | static int monitor_disas_is_physical; |
6a00d601 | 338 | static CPUState *monitor_disas_env; |
9307c4c1 FB |
339 | |
340 | static int | |
a5f1b965 BS |
341 | monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length, |
342 | struct disassemble_info *info) | |
9307c4c1 FB |
343 | { |
344 | if (monitor_disas_is_physical) { | |
345 | cpu_physical_memory_rw(memaddr, myaddr, length, 0); | |
346 | } else { | |
6a00d601 | 347 | cpu_memory_rw_debug(monitor_disas_env, memaddr,myaddr, length, 0); |
9307c4c1 FB |
348 | } |
349 | return 0; | |
350 | } | |
351 | ||
3d2cfdf1 FB |
352 | static int monitor_fprintf(FILE *stream, const char *fmt, ...) |
353 | { | |
354 | va_list ap; | |
355 | va_start(ap, fmt); | |
376253ec | 356 | monitor_vprintf((Monitor *)stream, fmt, ap); |
3d2cfdf1 FB |
357 | va_end(ap); |
358 | return 0; | |
359 | } | |
360 | ||
376253ec | 361 | void monitor_disas(Monitor *mon, CPUState *env, |
6a00d601 | 362 | target_ulong pc, int nb_insn, int is_physical, int flags) |
9307c4c1 | 363 | { |
9307c4c1 FB |
364 | int count, i; |
365 | struct disassemble_info disasm_info; | |
366 | int (*print_insn)(bfd_vma pc, disassemble_info *info); | |
367 | ||
376253ec | 368 | INIT_DISASSEMBLE_INFO(disasm_info, (FILE *)mon, monitor_fprintf); |
9307c4c1 | 369 | |
6a00d601 | 370 | monitor_disas_env = env; |
9307c4c1 FB |
371 | monitor_disas_is_physical = is_physical; |
372 | disasm_info.read_memory_func = monitor_read_memory; | |
373 | ||
374 | disasm_info.buffer_vma = pc; | |
375 | ||
376 | #ifdef TARGET_WORDS_BIGENDIAN | |
377 | disasm_info.endian = BFD_ENDIAN_BIG; | |
378 | #else | |
379 | disasm_info.endian = BFD_ENDIAN_LITTLE; | |
380 | #endif | |
381 | #if defined(TARGET_I386) | |
fa15e030 FB |
382 | if (flags == 2) |
383 | disasm_info.mach = bfd_mach_x86_64; | |
5fafdf24 | 384 | else if (flags == 1) |
9307c4c1 | 385 | disasm_info.mach = bfd_mach_i386_i8086; |
fa15e030 FB |
386 | else |
387 | disasm_info.mach = bfd_mach_i386_i386; | |
9307c4c1 FB |
388 | print_insn = print_insn_i386; |
389 | #elif defined(TARGET_ARM) | |
390 | print_insn = print_insn_arm; | |
cbd669da TS |
391 | #elif defined(TARGET_ALPHA) |
392 | print_insn = print_insn_alpha; | |
9307c4c1 FB |
393 | #elif defined(TARGET_SPARC) |
394 | print_insn = print_insn_sparc; | |
682c4f15 BS |
395 | #ifdef TARGET_SPARC64 |
396 | disasm_info.mach = bfd_mach_sparc_v9b; | |
397 | #endif | |
9307c4c1 | 398 | #elif defined(TARGET_PPC) |
a2458627 FB |
399 | #ifdef TARGET_PPC64 |
400 | disasm_info.mach = bfd_mach_ppc64; | |
401 | #else | |
402 | disasm_info.mach = bfd_mach_ppc; | |
403 | #endif | |
9307c4c1 | 404 | print_insn = print_insn_ppc; |
e6e5906b PB |
405 | #elif defined(TARGET_M68K) |
406 | print_insn = print_insn_m68k; | |
6af0bf9c | 407 | #elif defined(TARGET_MIPS) |
76b3030c | 408 | #ifdef TARGET_WORDS_BIGENDIAN |
6af0bf9c | 409 | print_insn = print_insn_big_mips; |
76b3030c FB |
410 | #else |
411 | print_insn = print_insn_little_mips; | |
412 | #endif | |
b4e1f077 MD |
413 | #elif defined(TARGET_SH4) |
414 | disasm_info.mach = bfd_mach_sh4; | |
415 | print_insn = print_insn_sh; | |
9307c4c1 | 416 | #else |
376253ec AL |
417 | monitor_printf(mon, "0x" TARGET_FMT_lx |
418 | ": Asm output not supported on this arch\n", pc); | |
9307c4c1 FB |
419 | return; |
420 | #endif | |
421 | ||
422 | for(i = 0; i < nb_insn; i++) { | |
376253ec | 423 | monitor_printf(mon, "0x" TARGET_FMT_lx ": ", pc); |
9307c4c1 | 424 | count = print_insn(pc, &disasm_info); |
376253ec | 425 | monitor_printf(mon, "\n"); |
9307c4c1 FB |
426 | if (count < 0) |
427 | break; | |
428 | pc += count; | |
429 | } | |
430 | } | |
431 | #endif |