bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 1 | /* General "disassemble this chunk" code. Used for debugging. */ |
Peter Maydell | d38ea87 | 2016-01-29 17:50:05 +0000 | [diff] [blame] | 2 | #include "qemu/osdep.h" |
Markus Armbruster | 3979fca | 2019-04-17 21:18:04 +0200 | [diff] [blame] | 3 | #include "disas/dis-asm.h" |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 4 | #include "elf.h" |
Markus Armbruster | 30cc983 | 2019-04-17 21:18:03 +0200 | [diff] [blame] | 5 | #include "qemu/qemu-print.h" |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 6 | |
Paolo Bonzini | 76cad71 | 2012-10-24 11:12:21 +0200 | [diff] [blame] | 7 | #include "disas/disas.h" |
Richard Henderson | 8ca8076 | 2017-09-14 09:41:12 -0700 | [diff] [blame] | 8 | #include "disas/capstone.h" |
bellard | c6105c0 | 2003-10-27 21:13:58 +0000 | [diff] [blame] | 9 | |
Blue Swirl | f4359b9 | 2012-09-08 12:40:00 +0000 | [diff] [blame] | 10 | typedef struct CPUDebug { |
| 11 | struct disassemble_info info; |
Peter Crosthwaite | d49190c | 2015-05-24 14:20:41 -0700 | [diff] [blame] | 12 | CPUState *cpu; |
Blue Swirl | f4359b9 | 2012-09-08 12:40:00 +0000 | [diff] [blame] | 13 | } CPUDebug; |
| 14 | |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 15 | /* Filled in by elfload.c. Simplistic, but will do for now. */ |
bellard | e80cfcf | 2004-12-19 23:18:01 +0000 | [diff] [blame] | 16 | struct syminfo *syminfos = NULL; |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 17 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 18 | /* |
| 19 | * Get LENGTH bytes from info's buffer, at host address memaddr. |
| 20 | * Transfer them to myaddr. |
| 21 | */ |
| 22 | static int host_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length, |
| 23 | struct disassemble_info *info) |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 24 | { |
bellard | c6105c0 | 2003-10-27 21:13:58 +0000 | [diff] [blame] | 25 | if (memaddr < info->buffer_vma |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 26 | || memaddr + length > info->buffer_vma + info->buffer_length) { |
bellard | c6105c0 | 2003-10-27 21:13:58 +0000 | [diff] [blame] | 27 | /* Out of bounds. Use EIO because GDB uses it. */ |
| 28 | return EIO; |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 29 | } |
bellard | c6105c0 | 2003-10-27 21:13:58 +0000 | [diff] [blame] | 30 | memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length); |
| 31 | return 0; |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 32 | } |
| 33 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 34 | /* |
| 35 | * Get LENGTH bytes from info's buffer, at target address memaddr. |
| 36 | * Transfer them to myaddr. |
| 37 | */ |
| 38 | static int target_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length, |
| 39 | struct disassemble_info *info) |
bellard | c6105c0 | 2003-10-27 21:13:58 +0000 | [diff] [blame] | 40 | { |
Blue Swirl | f4359b9 | 2012-09-08 12:40:00 +0000 | [diff] [blame] | 41 | CPUDebug *s = container_of(info, CPUDebug, info); |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 42 | int r = cpu_memory_rw_debug(s->cpu, memaddr, myaddr, length, 0); |
Philippe Mathieu-Daudé | 6766ba5 | 2020-05-18 17:53:04 +0200 | [diff] [blame] | 43 | return r ? EIO : 0; |
bellard | c6105c0 | 2003-10-27 21:13:58 +0000 | [diff] [blame] | 44 | } |
bellard | c6105c0 | 2003-10-27 21:13:58 +0000 | [diff] [blame] | 45 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 46 | /* |
| 47 | * Print an error message. We can assume that this is in response to |
| 48 | * an error return from {host,target}_read_memory. |
| 49 | */ |
| 50 | static void perror_memory(int status, bfd_vma memaddr, |
| 51 | struct disassemble_info *info) |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 52 | { |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 53 | if (status != EIO) { |
| 54 | /* Can't happen. */ |
| 55 | info->fprintf_func(info->stream, "Unknown error %d\n", status); |
| 56 | } else { |
| 57 | /* Address between memaddr and memaddr + len was out of bounds. */ |
| 58 | info->fprintf_func(info->stream, |
| 59 | "Address 0x%" PRIx64 " is out of bounds.\n", |
| 60 | memaddr); |
| 61 | } |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 62 | } |
| 63 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 64 | /* Print address in hex. */ |
| 65 | static void print_address(bfd_vma addr, struct disassemble_info *info) |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 66 | { |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 67 | info->fprintf_func(info->stream, "0x%" PRIx64, addr); |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 68 | } |
| 69 | |
Peter Maydell | 636bd28 | 2012-06-25 04:55:55 +0000 | [diff] [blame] | 70 | /* Print address in hex, truncated to the width of a host virtual address. */ |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 71 | static void host_print_address(bfd_vma addr, struct disassemble_info *info) |
Peter Maydell | 636bd28 | 2012-06-25 04:55:55 +0000 | [diff] [blame] | 72 | { |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 73 | print_address((uintptr_t)addr, info); |
Peter Maydell | 636bd28 | 2012-06-25 04:55:55 +0000 | [diff] [blame] | 74 | } |
| 75 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 76 | /* Stub prevents some fruitless earching in optabs disassemblers. */ |
| 77 | static int symbol_at_address(bfd_vma addr, struct disassemble_info *info) |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 78 | { |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 79 | return 1; |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 80 | } |
| 81 | |
Richard Henderson | c46ffd5 | 2013-08-16 23:29:45 -0700 | [diff] [blame] | 82 | static int print_insn_objdump(bfd_vma pc, disassemble_info *info, |
| 83 | const char *prefix) |
| 84 | { |
| 85 | int i, n = info->buffer_length; |
| 86 | uint8_t *buf = g_malloc(n); |
| 87 | |
| 88 | info->read_memory_func(pc, buf, n, info); |
| 89 | |
| 90 | for (i = 0; i < n; ++i) { |
| 91 | if (i % 32 == 0) { |
| 92 | info->fprintf_func(info->stream, "\n%s: ", prefix); |
| 93 | } |
| 94 | info->fprintf_func(info->stream, "%02x", buf[i]); |
| 95 | } |
| 96 | |
| 97 | g_free(buf); |
| 98 | return n; |
| 99 | } |
| 100 | |
| 101 | static int print_insn_od_host(bfd_vma pc, disassemble_info *info) |
| 102 | { |
| 103 | return print_insn_objdump(pc, info, "OBJD-H"); |
| 104 | } |
| 105 | |
| 106 | static int print_insn_od_target(bfd_vma pc, disassemble_info *info) |
| 107 | { |
| 108 | return print_insn_objdump(pc, info, "OBJD-T"); |
| 109 | } |
| 110 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 111 | static void initialize_debug(CPUDebug *s) |
| 112 | { |
| 113 | memset(s, 0, sizeof(*s)); |
| 114 | s->info.arch = bfd_arch_unknown; |
| 115 | s->info.cap_arch = -1; |
| 116 | s->info.cap_insn_unit = 4; |
| 117 | s->info.cap_insn_split = 4; |
| 118 | s->info.memory_error_func = perror_memory; |
| 119 | s->info.symbol_at_address_func = symbol_at_address; |
| 120 | } |
| 121 | |
| 122 | static void initialize_debug_target(CPUDebug *s, CPUState *cpu) |
| 123 | { |
| 124 | initialize_debug(s); |
| 125 | |
| 126 | s->cpu = cpu; |
| 127 | s->info.read_memory_func = target_read_memory; |
| 128 | s->info.print_address_func = print_address; |
| 129 | #ifdef TARGET_WORDS_BIGENDIAN |
| 130 | s->info.endian = BFD_ENDIAN_BIG; |
| 131 | #else |
| 132 | s->info.endian = BFD_ENDIAN_LITTLE; |
| 133 | #endif |
| 134 | |
| 135 | CPUClass *cc = CPU_GET_CLASS(cpu); |
| 136 | if (cc->disas_set_info) { |
| 137 | cc->disas_set_info(cpu, &s->info); |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | static void initialize_debug_host(CPUDebug *s) |
| 142 | { |
| 143 | initialize_debug(s); |
| 144 | |
| 145 | s->info.read_memory_func = host_read_memory; |
| 146 | s->info.print_address_func = host_print_address; |
| 147 | #ifdef HOST_WORDS_BIGENDIAN |
| 148 | s->info.endian = BFD_ENDIAN_BIG; |
| 149 | #else |
| 150 | s->info.endian = BFD_ENDIAN_LITTLE; |
| 151 | #endif |
| 152 | #if defined(CONFIG_TCG_INTERPRETER) |
| 153 | s->info.print_insn = print_insn_tci; |
| 154 | #elif defined(__i386__) |
| 155 | s->info.mach = bfd_mach_i386_i386; |
| 156 | s->info.print_insn = print_insn_i386; |
| 157 | s->info.cap_arch = CS_ARCH_X86; |
| 158 | s->info.cap_mode = CS_MODE_32; |
| 159 | s->info.cap_insn_unit = 1; |
| 160 | s->info.cap_insn_split = 8; |
| 161 | #elif defined(__x86_64__) |
| 162 | s->info.mach = bfd_mach_x86_64; |
| 163 | s->info.print_insn = print_insn_i386; |
| 164 | s->info.cap_arch = CS_ARCH_X86; |
| 165 | s->info.cap_mode = CS_MODE_64; |
| 166 | s->info.cap_insn_unit = 1; |
| 167 | s->info.cap_insn_split = 8; |
| 168 | #elif defined(_ARCH_PPC) |
| 169 | s->info.disassembler_options = (char *)"any"; |
| 170 | s->info.print_insn = print_insn_ppc; |
| 171 | s->info.cap_arch = CS_ARCH_PPC; |
| 172 | # ifdef _ARCH_PPC64 |
| 173 | s->info.cap_mode = CS_MODE_64; |
| 174 | # endif |
| 175 | #elif defined(__riscv) && defined(CONFIG_RISCV_DIS) |
| 176 | #if defined(_ILP32) || (__riscv_xlen == 32) |
| 177 | s->info.print_insn = print_insn_riscv32; |
| 178 | #elif defined(_LP64) |
| 179 | s->info.print_insn = print_insn_riscv64; |
| 180 | #else |
| 181 | #error unsupported RISC-V ABI |
| 182 | #endif |
Richard Henderson | a4038a0 | 2020-09-11 17:59:01 -0700 | [diff] [blame] | 183 | #elif defined(__aarch64__) |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 184 | s->info.cap_arch = CS_ARCH_ARM64; |
Richard Henderson | a4038a0 | 2020-09-11 17:59:01 -0700 | [diff] [blame] | 185 | # ifdef CONFIG_ARM_A64_DIS |
| 186 | s->info.print_insn = print_insn_arm_a64; |
| 187 | # endif |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 188 | #elif defined(__alpha__) |
| 189 | s->info.print_insn = print_insn_alpha; |
| 190 | #elif defined(__sparc__) |
| 191 | s->info.print_insn = print_insn_sparc; |
| 192 | s->info.mach = bfd_mach_sparc_v9b; |
| 193 | #elif defined(__arm__) |
| 194 | /* TCG only generates code for arm mode. */ |
| 195 | s->info.print_insn = print_insn_arm; |
| 196 | s->info.cap_arch = CS_ARCH_ARM; |
| 197 | #elif defined(__MIPSEB__) |
| 198 | s->info.print_insn = print_insn_big_mips; |
| 199 | #elif defined(__MIPSEL__) |
| 200 | s->info.print_insn = print_insn_little_mips; |
| 201 | #elif defined(__m68k__) |
| 202 | s->info.print_insn = print_insn_m68k; |
| 203 | #elif defined(__s390__) |
| 204 | s->info.print_insn = print_insn_s390; |
Richard Henderson | 3d56284 | 2020-01-04 07:24:59 +1000 | [diff] [blame] | 205 | s->info.cap_arch = CS_ARCH_SYSZ; |
| 206 | s->info.cap_insn_unit = 2; |
| 207 | s->info.cap_insn_split = 6; |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 208 | #elif defined(__hppa__) |
| 209 | s->info.print_insn = print_insn_hppa; |
| 210 | #endif |
| 211 | } |
| 212 | |
Richard Henderson | 1d48474 | 2017-09-14 08:38:35 -0700 | [diff] [blame] | 213 | /* Disassemble this for me please... (debugging). */ |
Peter Crosthwaite | d49190c | 2015-05-24 14:20:41 -0700 | [diff] [blame] | 214 | void target_disas(FILE *out, CPUState *cpu, target_ulong code, |
Richard Henderson | 1d48474 | 2017-09-14 08:38:35 -0700 | [diff] [blame] | 215 | target_ulong size) |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 216 | { |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 217 | target_ulong pc; |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 218 | int count; |
Blue Swirl | f4359b9 | 2012-09-08 12:40:00 +0000 | [diff] [blame] | 219 | CPUDebug s; |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 220 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 221 | initialize_debug_target(&s, cpu); |
| 222 | s.info.fprintf_func = fprintf; |
| 223 | s.info.stream = out; |
Blue Swirl | f4359b9 | 2012-09-08 12:40:00 +0000 | [diff] [blame] | 224 | s.info.buffer_vma = code; |
| 225 | s.info.buffer_length = size; |
Peter Crosthwaite | 37b9de4 | 2015-06-23 20:57:33 -0700 | [diff] [blame] | 226 | |
Richard Henderson | 8ca8076 | 2017-09-14 09:41:12 -0700 | [diff] [blame] | 227 | if (s.info.cap_arch >= 0 && cap_disas_target(&s.info, code, size)) { |
| 228 | return; |
| 229 | } |
| 230 | |
Peter Crosthwaite | 2de295c | 2015-06-23 20:57:32 -0700 | [diff] [blame] | 231 | if (s.info.print_insn == NULL) { |
| 232 | s.info.print_insn = print_insn_od_target; |
Richard Henderson | c46ffd5 | 2013-08-16 23:29:45 -0700 | [diff] [blame] | 233 | } |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 234 | |
blueswir1 | 7e000c2 | 2009-02-13 21:44:41 +0000 | [diff] [blame] | 235 | for (pc = code; size > 0; pc += count, size -= count) { |
bellard | fa15e03 | 2005-01-31 23:32:31 +0000 | [diff] [blame] | 236 | fprintf(out, "0x" TARGET_FMT_lx ": ", pc); |
Peter Crosthwaite | 2de295c | 2015-06-23 20:57:32 -0700 | [diff] [blame] | 237 | count = s.info.print_insn(pc, &s.info); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 238 | fprintf(out, "\n"); |
| 239 | if (count < 0) |
| 240 | break; |
malc | 754d00a | 2009-04-21 22:26:22 +0000 | [diff] [blame] | 241 | if (size < count) { |
| 242 | fprintf(out, |
| 243 | "Disassembler disagrees with translator over instruction " |
| 244 | "decoding\n" |
| 245 | "Please report this to qemu-devel@nongnu.org\n"); |
| 246 | break; |
| 247 | } |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 248 | } |
| 249 | } |
| 250 | |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 251 | static int plugin_printf(FILE *stream, const char *fmt, ...) |
| 252 | { |
Richard Henderson | b71f3a6 | 2020-09-10 15:13:38 -0700 | [diff] [blame] | 253 | /* We abuse the FILE parameter to pass a GString. */ |
| 254 | GString *s = (GString *)stream; |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 255 | int initial_len = s->len; |
Richard Henderson | b71f3a6 | 2020-09-10 15:13:38 -0700 | [diff] [blame] | 256 | va_list va; |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 257 | |
| 258 | va_start(va, fmt); |
| 259 | g_string_append_vprintf(s, fmt, va); |
| 260 | va_end(va); |
| 261 | |
| 262 | return s->len - initial_len; |
| 263 | } |
| 264 | |
| 265 | static void plugin_print_address(bfd_vma addr, struct disassemble_info *info) |
| 266 | { |
| 267 | /* does nothing */ |
| 268 | } |
| 269 | |
| 270 | |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 271 | /* |
| 272 | * We should only be dissembling one instruction at a time here. If |
| 273 | * there is left over it usually indicates the front end has read more |
| 274 | * bytes than it needed. |
| 275 | */ |
| 276 | char *plugin_disas(CPUState *cpu, uint64_t addr, size_t size) |
| 277 | { |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 278 | CPUDebug s; |
Richard Henderson | b71f3a6 | 2020-09-10 15:13:38 -0700 | [diff] [blame] | 279 | GString *ds = g_string_new(NULL); |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 280 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 281 | initialize_debug_target(&s, cpu); |
| 282 | s.info.fprintf_func = plugin_printf; |
Richard Henderson | b71f3a6 | 2020-09-10 15:13:38 -0700 | [diff] [blame] | 283 | s.info.stream = (FILE *)ds; /* abuse this slot */ |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 284 | s.info.buffer_vma = addr; |
| 285 | s.info.buffer_length = size; |
| 286 | s.info.print_address_func = plugin_print_address; |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 287 | |
| 288 | if (s.info.cap_arch >= 0 && cap_disas_plugin(&s.info, addr, size)) { |
Richard Henderson | b71f3a6 | 2020-09-10 15:13:38 -0700 | [diff] [blame] | 289 | ; /* done */ |
| 290 | } else if (s.info.print_insn) { |
| 291 | s.info.print_insn(addr, &s.info); |
| 292 | } else { |
| 293 | ; /* cannot disassemble -- return empty string */ |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 294 | } |
| 295 | |
Richard Henderson | b71f3a6 | 2020-09-10 15:13:38 -0700 | [diff] [blame] | 296 | /* Return the buffer, freeing the GString container. */ |
| 297 | return g_string_free(ds, false); |
Alex Bennée | cbafa23 | 2019-05-22 10:27:14 +0100 | [diff] [blame] | 298 | } |
| 299 | |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 300 | /* Disassemble this for me please... (debugging). */ |
Richard Henderson | f06176b | 2020-10-30 20:59:01 -0700 | [diff] [blame] | 301 | void disas(FILE *out, const void *code, unsigned long size) |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 302 | { |
Stefan Weil | b0b0f1c | 2012-04-12 15:44:35 +0200 | [diff] [blame] | 303 | uintptr_t pc; |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 304 | int count; |
Blue Swirl | f4359b9 | 2012-09-08 12:40:00 +0000 | [diff] [blame] | 305 | CPUDebug s; |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 306 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 307 | initialize_debug_host(&s); |
| 308 | s.info.fprintf_func = fprintf; |
| 309 | s.info.stream = out; |
Blue Swirl | f4359b9 | 2012-09-08 12:40:00 +0000 | [diff] [blame] | 310 | s.info.buffer = code; |
| 311 | s.info.buffer_vma = (uintptr_t)code; |
| 312 | s.info.buffer_length = size; |
Richard Henderson | 8ca8076 | 2017-09-14 09:41:12 -0700 | [diff] [blame] | 313 | |
Richard Henderson | 4c389f6 | 2020-09-10 12:15:04 -0700 | [diff] [blame] | 314 | if (s.info.cap_arch >= 0 && cap_disas_host(&s.info, code, size)) { |
Richard Henderson | 8ca8076 | 2017-09-14 09:41:12 -0700 | [diff] [blame] | 315 | return; |
| 316 | } |
| 317 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 318 | if (s.info.print_insn == NULL) { |
| 319 | s.info.print_insn = print_insn_od_host; |
Richard Henderson | c46ffd5 | 2013-08-16 23:29:45 -0700 | [diff] [blame] | 320 | } |
Stefan Weil | b0b0f1c | 2012-04-12 15:44:35 +0200 | [diff] [blame] | 321 | for (pc = (uintptr_t)code; size > 0; pc += count, size -= count) { |
| 322 | fprintf(out, "0x%08" PRIxPTR ": ", pc); |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 323 | count = s.info.print_insn(pc, &s.info); |
Alex Bennée | e5ef4ec | 2020-05-13 18:51:32 +0100 | [diff] [blame] | 324 | fprintf(out, "\n"); |
| 325 | if (count < 0) { |
| 326 | break; |
| 327 | } |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 328 | } |
Alex Bennée | e5ef4ec | 2020-05-13 18:51:32 +0100 | [diff] [blame] | 329 | |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 330 | } |
| 331 | |
| 332 | /* Look up symbol for debugging purpose. Returns "" if unknown. */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 333 | const char *lookup_symbol(target_ulong orig_addr) |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 334 | { |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 335 | const char *symbol = ""; |
bellard | e80cfcf | 2004-12-19 23:18:01 +0000 | [diff] [blame] | 336 | struct syminfo *s; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 337 | |
bellard | e80cfcf | 2004-12-19 23:18:01 +0000 | [diff] [blame] | 338 | for (s = syminfos; s; s = s->next) { |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 339 | symbol = s->lookup_symbol(s, orig_addr); |
| 340 | if (symbol[0] != '\0') { |
| 341 | break; |
| 342 | } |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 343 | } |
pbrook | 49918a7 | 2008-10-22 15:11:31 +0000 | [diff] [blame] | 344 | |
| 345 | return symbol; |
bellard | b9adb4a | 2003-04-29 20:41:16 +0000 | [diff] [blame] | 346 | } |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 347 | |
| 348 | #if !defined(CONFIG_USER_ONLY) |
| 349 | |
Paolo Bonzini | 83c9089 | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 350 | #include "monitor/monitor.h" |
bellard | 3d2cfdf | 2004-08-01 21:49:07 +0000 | [diff] [blame] | 351 | |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 352 | static int |
Richard Henderson | b8d8720 | 2017-09-19 09:40:40 -0500 | [diff] [blame] | 353 | physical_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length, |
blueswir1 | a5f1b96 | 2008-08-17 20:21:51 +0000 | [diff] [blame] | 354 | struct disassemble_info *info) |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 355 | { |
Peter Maydell | f2c6abc | 2018-12-14 13:30:49 +0000 | [diff] [blame] | 356 | CPUDebug *s = container_of(info, CPUDebug, info); |
Philippe Mathieu-Daudé | 6766ba5 | 2020-05-18 17:53:04 +0200 | [diff] [blame] | 357 | MemTxResult res; |
Peter Maydell | f2c6abc | 2018-12-14 13:30:49 +0000 | [diff] [blame] | 358 | |
Philippe Mathieu-Daudé | 6766ba5 | 2020-05-18 17:53:04 +0200 | [diff] [blame] | 359 | res = address_space_read(s->cpu->as, memaddr, MEMTXATTRS_UNSPECIFIED, |
| 360 | myaddr, length); |
| 361 | return res == MEMTX_OK ? 0 : EIO; |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 362 | } |
| 363 | |
Richard Henderson | 1d48474 | 2017-09-14 08:38:35 -0700 | [diff] [blame] | 364 | /* Disassembler for the monitor. */ |
Peter Crosthwaite | d49190c | 2015-05-24 14:20:41 -0700 | [diff] [blame] | 365 | void monitor_disas(Monitor *mon, CPUState *cpu, |
Richard Henderson | 1d48474 | 2017-09-14 08:38:35 -0700 | [diff] [blame] | 366 | target_ulong pc, int nb_insn, int is_physical) |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 367 | { |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 368 | int count, i; |
Blue Swirl | f4359b9 | 2012-09-08 12:40:00 +0000 | [diff] [blame] | 369 | CPUDebug s; |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 370 | |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 371 | initialize_debug_target(&s, cpu); |
| 372 | s.info.fprintf_func = qemu_fprintf; |
| 373 | if (is_physical) { |
| 374 | s.info.read_memory_func = physical_read_memory; |
Peter Crosthwaite | 37b9de4 | 2015-06-23 20:57:33 -0700 | [diff] [blame] | 375 | } |
Richard Henderson | 12b6e9b | 2020-09-10 14:40:54 -0700 | [diff] [blame] | 376 | s.info.buffer_vma = pc; |
Peter Crosthwaite | 37b9de4 | 2015-06-23 20:57:33 -0700 | [diff] [blame] | 377 | |
Richard Henderson | 8ca8076 | 2017-09-14 09:41:12 -0700 | [diff] [blame] | 378 | if (s.info.cap_arch >= 0 && cap_disas_monitor(&s.info, pc, nb_insn)) { |
| 379 | return; |
| 380 | } |
| 381 | |
Peter Crosthwaite | 37b9de4 | 2015-06-23 20:57:33 -0700 | [diff] [blame] | 382 | if (!s.info.print_insn) { |
| 383 | monitor_printf(mon, "0x" TARGET_FMT_lx |
| 384 | ": Asm output not supported on this arch\n", pc); |
| 385 | return; |
| 386 | } |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 387 | |
| 388 | for(i = 0; i < nb_insn; i++) { |
aliguori | 376253e | 2009-03-05 23:01:23 +0000 | [diff] [blame] | 389 | monitor_printf(mon, "0x" TARGET_FMT_lx ": ", pc); |
Peter Crosthwaite | 2de295c | 2015-06-23 20:57:32 -0700 | [diff] [blame] | 390 | count = s.info.print_insn(pc, &s.info); |
aliguori | 376253e | 2009-03-05 23:01:23 +0000 | [diff] [blame] | 391 | monitor_printf(mon, "\n"); |
bellard | 9307c4c | 2004-04-04 12:57:25 +0000 | [diff] [blame] | 392 | if (count < 0) |
| 393 | break; |
| 394 | pc += count; |
| 395 | } |
| 396 | } |
| 397 | #endif |