The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * gdb server stub |
| 3 | * |
| 4 | * Copyright (c) 2003-2005 Fabrice Bellard |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
David 'Digit' Turner | 9251866 | 2010-05-10 23:26:01 -0700 | [diff] [blame] | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 18 | */ |
| 19 | #include "config.h" |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 20 | #include "qemu-common.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 21 | #ifdef CONFIG_USER_ONLY |
| 22 | #include <stdlib.h> |
| 23 | #include <stdio.h> |
| 24 | #include <stdarg.h> |
| 25 | #include <string.h> |
| 26 | #include <errno.h> |
| 27 | #include <unistd.h> |
| 28 | #include <fcntl.h> |
| 29 | |
| 30 | #include "qemu.h" |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 31 | #include "hw/hw.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 32 | #else |
David 'Digit' Turner | 6af6765 | 2013-12-14 23:49:32 +0100 | [diff] [blame] | 33 | #include "monitor/monitor.h" |
David 'Digit' Turner | e7216d8 | 2013-12-15 00:51:13 +0100 | [diff] [blame] | 34 | #include "sysemu/char.h" |
David 'Digit' Turner | 34c48ff | 2013-12-15 00:25:03 +0100 | [diff] [blame] | 35 | #include "sysemu/sysemu.h" |
David 'Digit' Turner | 852088c | 2013-12-14 23:04:12 +0100 | [diff] [blame] | 36 | #include "exec/gdbstub.h" |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 37 | #include "exec/exec-all.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 38 | #endif |
| 39 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 40 | #define MAX_PACKET_LENGTH 4096 |
| 41 | |
David 'Digit' Turner | d0edecb | 2013-12-17 09:32:26 +0100 | [diff] [blame] | 42 | #include "qemu/sockets.h" |
David 'Digit' Turner | 34c48ff | 2013-12-15 00:25:03 +0100 | [diff] [blame] | 43 | #include "sysemu/kvm.h" |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 44 | |
| 45 | |
| 46 | enum { |
| 47 | GDB_SIGNAL_0 = 0, |
| 48 | GDB_SIGNAL_INT = 2, |
| 49 | GDB_SIGNAL_TRAP = 5, |
| 50 | GDB_SIGNAL_UNKNOWN = 143 |
| 51 | }; |
| 52 | |
| 53 | #ifdef CONFIG_USER_ONLY |
| 54 | |
| 55 | /* Map target signal numbers to GDB protocol signal numbers and vice |
| 56 | * versa. For user emulation's currently supported systems, we can |
| 57 | * assume most signals are defined. |
| 58 | */ |
| 59 | |
| 60 | static int gdb_signal_table[] = { |
| 61 | 0, |
| 62 | TARGET_SIGHUP, |
| 63 | TARGET_SIGINT, |
| 64 | TARGET_SIGQUIT, |
| 65 | TARGET_SIGILL, |
| 66 | TARGET_SIGTRAP, |
| 67 | TARGET_SIGABRT, |
| 68 | -1, /* SIGEMT */ |
| 69 | TARGET_SIGFPE, |
| 70 | TARGET_SIGKILL, |
| 71 | TARGET_SIGBUS, |
| 72 | TARGET_SIGSEGV, |
| 73 | TARGET_SIGSYS, |
| 74 | TARGET_SIGPIPE, |
| 75 | TARGET_SIGALRM, |
| 76 | TARGET_SIGTERM, |
| 77 | TARGET_SIGURG, |
| 78 | TARGET_SIGSTOP, |
| 79 | TARGET_SIGTSTP, |
| 80 | TARGET_SIGCONT, |
| 81 | TARGET_SIGCHLD, |
| 82 | TARGET_SIGTTIN, |
| 83 | TARGET_SIGTTOU, |
| 84 | TARGET_SIGIO, |
| 85 | TARGET_SIGXCPU, |
| 86 | TARGET_SIGXFSZ, |
| 87 | TARGET_SIGVTALRM, |
| 88 | TARGET_SIGPROF, |
| 89 | TARGET_SIGWINCH, |
| 90 | -1, /* SIGLOST */ |
| 91 | TARGET_SIGUSR1, |
| 92 | TARGET_SIGUSR2, |
| 93 | #ifdef TARGET_SIGPWR |
| 94 | TARGET_SIGPWR, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 95 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 96 | -1, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 97 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 98 | -1, /* SIGPOLL */ |
| 99 | -1, |
| 100 | -1, |
| 101 | -1, |
| 102 | -1, |
| 103 | -1, |
| 104 | -1, |
| 105 | -1, |
| 106 | -1, |
| 107 | -1, |
| 108 | -1, |
| 109 | -1, |
| 110 | #ifdef __SIGRTMIN |
| 111 | __SIGRTMIN + 1, |
| 112 | __SIGRTMIN + 2, |
| 113 | __SIGRTMIN + 3, |
| 114 | __SIGRTMIN + 4, |
| 115 | __SIGRTMIN + 5, |
| 116 | __SIGRTMIN + 6, |
| 117 | __SIGRTMIN + 7, |
| 118 | __SIGRTMIN + 8, |
| 119 | __SIGRTMIN + 9, |
| 120 | __SIGRTMIN + 10, |
| 121 | __SIGRTMIN + 11, |
| 122 | __SIGRTMIN + 12, |
| 123 | __SIGRTMIN + 13, |
| 124 | __SIGRTMIN + 14, |
| 125 | __SIGRTMIN + 15, |
| 126 | __SIGRTMIN + 16, |
| 127 | __SIGRTMIN + 17, |
| 128 | __SIGRTMIN + 18, |
| 129 | __SIGRTMIN + 19, |
| 130 | __SIGRTMIN + 20, |
| 131 | __SIGRTMIN + 21, |
| 132 | __SIGRTMIN + 22, |
| 133 | __SIGRTMIN + 23, |
| 134 | __SIGRTMIN + 24, |
| 135 | __SIGRTMIN + 25, |
| 136 | __SIGRTMIN + 26, |
| 137 | __SIGRTMIN + 27, |
| 138 | __SIGRTMIN + 28, |
| 139 | __SIGRTMIN + 29, |
| 140 | __SIGRTMIN + 30, |
| 141 | __SIGRTMIN + 31, |
| 142 | -1, /* SIGCANCEL */ |
| 143 | __SIGRTMIN, |
| 144 | __SIGRTMIN + 32, |
| 145 | __SIGRTMIN + 33, |
| 146 | __SIGRTMIN + 34, |
| 147 | __SIGRTMIN + 35, |
| 148 | __SIGRTMIN + 36, |
| 149 | __SIGRTMIN + 37, |
| 150 | __SIGRTMIN + 38, |
| 151 | __SIGRTMIN + 39, |
| 152 | __SIGRTMIN + 40, |
| 153 | __SIGRTMIN + 41, |
| 154 | __SIGRTMIN + 42, |
| 155 | __SIGRTMIN + 43, |
| 156 | __SIGRTMIN + 44, |
| 157 | __SIGRTMIN + 45, |
| 158 | __SIGRTMIN + 46, |
| 159 | __SIGRTMIN + 47, |
| 160 | __SIGRTMIN + 48, |
| 161 | __SIGRTMIN + 49, |
| 162 | __SIGRTMIN + 50, |
| 163 | __SIGRTMIN + 51, |
| 164 | __SIGRTMIN + 52, |
| 165 | __SIGRTMIN + 53, |
| 166 | __SIGRTMIN + 54, |
| 167 | __SIGRTMIN + 55, |
| 168 | __SIGRTMIN + 56, |
| 169 | __SIGRTMIN + 57, |
| 170 | __SIGRTMIN + 58, |
| 171 | __SIGRTMIN + 59, |
| 172 | __SIGRTMIN + 60, |
| 173 | __SIGRTMIN + 61, |
| 174 | __SIGRTMIN + 62, |
| 175 | __SIGRTMIN + 63, |
| 176 | __SIGRTMIN + 64, |
| 177 | __SIGRTMIN + 65, |
| 178 | __SIGRTMIN + 66, |
| 179 | __SIGRTMIN + 67, |
| 180 | __SIGRTMIN + 68, |
| 181 | __SIGRTMIN + 69, |
| 182 | __SIGRTMIN + 70, |
| 183 | __SIGRTMIN + 71, |
| 184 | __SIGRTMIN + 72, |
| 185 | __SIGRTMIN + 73, |
| 186 | __SIGRTMIN + 74, |
| 187 | __SIGRTMIN + 75, |
| 188 | __SIGRTMIN + 76, |
| 189 | __SIGRTMIN + 77, |
| 190 | __SIGRTMIN + 78, |
| 191 | __SIGRTMIN + 79, |
| 192 | __SIGRTMIN + 80, |
| 193 | __SIGRTMIN + 81, |
| 194 | __SIGRTMIN + 82, |
| 195 | __SIGRTMIN + 83, |
| 196 | __SIGRTMIN + 84, |
| 197 | __SIGRTMIN + 85, |
| 198 | __SIGRTMIN + 86, |
| 199 | __SIGRTMIN + 87, |
| 200 | __SIGRTMIN + 88, |
| 201 | __SIGRTMIN + 89, |
| 202 | __SIGRTMIN + 90, |
| 203 | __SIGRTMIN + 91, |
| 204 | __SIGRTMIN + 92, |
| 205 | __SIGRTMIN + 93, |
| 206 | __SIGRTMIN + 94, |
| 207 | __SIGRTMIN + 95, |
| 208 | -1, /* SIGINFO */ |
| 209 | -1, /* UNKNOWN */ |
| 210 | -1, /* DEFAULT */ |
| 211 | -1, |
| 212 | -1, |
| 213 | -1, |
| 214 | -1, |
| 215 | -1, |
| 216 | -1 |
| 217 | #endif |
| 218 | }; |
| 219 | #else |
| 220 | /* In system mode we only need SIGINT and SIGTRAP; other signals |
| 221 | are not yet supported. */ |
| 222 | |
| 223 | enum { |
| 224 | TARGET_SIGINT = 2, |
| 225 | TARGET_SIGTRAP = 5 |
| 226 | }; |
| 227 | |
| 228 | static int gdb_signal_table[] = { |
| 229 | -1, |
| 230 | -1, |
| 231 | TARGET_SIGINT, |
| 232 | -1, |
| 233 | -1, |
| 234 | TARGET_SIGTRAP |
| 235 | }; |
| 236 | #endif |
| 237 | |
| 238 | #ifdef CONFIG_USER_ONLY |
| 239 | static int target_signal_to_gdb (int sig) |
| 240 | { |
| 241 | int i; |
| 242 | for (i = 0; i < ARRAY_SIZE (gdb_signal_table); i++) |
| 243 | if (gdb_signal_table[i] == sig) |
| 244 | return i; |
| 245 | return GDB_SIGNAL_UNKNOWN; |
| 246 | } |
| 247 | #endif |
| 248 | |
| 249 | static int gdb_signal_to_target (int sig) |
| 250 | { |
| 251 | if (sig < ARRAY_SIZE (gdb_signal_table)) |
| 252 | return gdb_signal_table[sig]; |
| 253 | else |
| 254 | return -1; |
| 255 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 256 | |
| 257 | //#define DEBUG_GDB |
| 258 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 259 | typedef struct GDBRegisterState { |
| 260 | int base_reg; |
| 261 | int num_regs; |
| 262 | gdb_reg_cb get_reg; |
| 263 | gdb_reg_cb set_reg; |
| 264 | const char *xml; |
| 265 | struct GDBRegisterState *next; |
| 266 | } GDBRegisterState; |
| 267 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 268 | enum RSState { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 269 | RS_INACTIVE, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 270 | RS_IDLE, |
| 271 | RS_GETLINE, |
| 272 | RS_CHKSUM1, |
| 273 | RS_CHKSUM2, |
| 274 | RS_SYSCALL, |
| 275 | }; |
| 276 | typedef struct GDBState { |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 277 | CPUArchState *c_cpu; /* current CPU for step/continue ops */ |
| 278 | CPUArchState *g_cpu; /* current CPU for other ops */ |
| 279 | CPUArchState *query_cpu; /* for q{f|s}ThreadInfo */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 280 | enum RSState state; /* parsing state */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 281 | char line_buf[MAX_PACKET_LENGTH]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 282 | int line_buf_index; |
| 283 | int line_csum; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 284 | uint8_t last_packet[MAX_PACKET_LENGTH + 4]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 285 | int last_packet_len; |
| 286 | int signal; |
| 287 | #ifdef CONFIG_USER_ONLY |
| 288 | int fd; |
| 289 | int running_state; |
| 290 | #else |
| 291 | CharDriverState *chr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 292 | CharDriverState *mon_chr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 293 | #endif |
| 294 | } GDBState; |
| 295 | |
| 296 | /* By default use no IRQs and no timers while single stepping so as to |
| 297 | * make single stepping like an ICE HW step. |
| 298 | */ |
| 299 | static int sstep_flags = SSTEP_ENABLE|SSTEP_NOIRQ|SSTEP_NOTIMER; |
| 300 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 301 | static GDBState *gdbserver_state; |
| 302 | |
| 303 | /* This is an ugly hack to cope with both new and old gdb. |
| 304 | If gdb sends qXfer:features:read then assume we're talking to a newish |
| 305 | gdb that understands target descriptions. */ |
| 306 | static int gdb_has_xml; |
| 307 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 308 | #ifdef CONFIG_USER_ONLY |
| 309 | /* XXX: This is not thread safe. Do we care? */ |
| 310 | static int gdbserver_fd = -1; |
| 311 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 312 | static int get_char(GDBState *s) |
| 313 | { |
| 314 | uint8_t ch; |
| 315 | int ret; |
| 316 | |
| 317 | for(;;) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 318 | ret = recv(s->fd, &ch, 1, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 319 | if (ret < 0) { |
| 320 | if (errno == ECONNRESET) |
| 321 | s->fd = -1; |
| 322 | if (errno != EINTR && errno != EAGAIN) |
| 323 | return -1; |
| 324 | } else if (ret == 0) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 325 | close(s->fd); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 326 | s->fd = -1; |
| 327 | return -1; |
| 328 | } else { |
| 329 | break; |
| 330 | } |
| 331 | } |
| 332 | return ch; |
| 333 | } |
| 334 | #endif |
| 335 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 336 | static gdb_syscall_complete_cb gdb_current_syscall_cb; |
| 337 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 338 | static enum { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 339 | GDB_SYS_UNKNOWN, |
| 340 | GDB_SYS_ENABLED, |
| 341 | GDB_SYS_DISABLED, |
| 342 | } gdb_syscall_mode; |
| 343 | |
| 344 | /* If gdb is connected when the first semihosting syscall occurs then use |
| 345 | remote gdb syscalls. Otherwise use native file IO. */ |
| 346 | int use_gdb_syscalls(void) |
| 347 | { |
| 348 | if (gdb_syscall_mode == GDB_SYS_UNKNOWN) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 349 | gdb_syscall_mode = (gdbserver_state ? GDB_SYS_ENABLED |
| 350 | : GDB_SYS_DISABLED); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 351 | } |
| 352 | return gdb_syscall_mode == GDB_SYS_ENABLED; |
| 353 | } |
| 354 | |
| 355 | /* Resume execution. */ |
| 356 | static inline void gdb_continue(GDBState *s) |
| 357 | { |
| 358 | #ifdef CONFIG_USER_ONLY |
| 359 | s->running_state = 1; |
| 360 | #else |
| 361 | vm_start(); |
| 362 | #endif |
| 363 | } |
| 364 | |
| 365 | static void put_buffer(GDBState *s, const uint8_t *buf, int len) |
| 366 | { |
| 367 | #ifdef CONFIG_USER_ONLY |
| 368 | int ret; |
| 369 | |
| 370 | while (len > 0) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 371 | ret = send(s->fd, buf, len, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 372 | if (ret < 0) { |
| 373 | if (errno != EINTR && errno != EAGAIN) |
| 374 | return; |
| 375 | } else { |
| 376 | buf += ret; |
| 377 | len -= ret; |
| 378 | } |
| 379 | } |
| 380 | #else |
| 381 | qemu_chr_write(s->chr, buf, len); |
| 382 | #endif |
| 383 | } |
| 384 | |
| 385 | static inline int fromhex(int v) |
| 386 | { |
| 387 | if (v >= '0' && v <= '9') |
| 388 | return v - '0'; |
| 389 | else if (v >= 'A' && v <= 'F') |
| 390 | return v - 'A' + 10; |
| 391 | else if (v >= 'a' && v <= 'f') |
| 392 | return v - 'a' + 10; |
| 393 | else |
| 394 | return 0; |
| 395 | } |
| 396 | |
| 397 | static inline int tohex(int v) |
| 398 | { |
| 399 | if (v < 10) |
| 400 | return v + '0'; |
| 401 | else |
| 402 | return v - 10 + 'a'; |
| 403 | } |
| 404 | |
| 405 | static void memtohex(char *buf, const uint8_t *mem, int len) |
| 406 | { |
| 407 | int i, c; |
| 408 | char *q; |
| 409 | q = buf; |
| 410 | for(i = 0; i < len; i++) { |
| 411 | c = mem[i]; |
| 412 | *q++ = tohex(c >> 4); |
| 413 | *q++ = tohex(c & 0xf); |
| 414 | } |
| 415 | *q = '\0'; |
| 416 | } |
| 417 | |
| 418 | static void hextomem(uint8_t *mem, const char *buf, int len) |
| 419 | { |
| 420 | int i; |
| 421 | |
| 422 | for(i = 0; i < len; i++) { |
| 423 | mem[i] = (fromhex(buf[0]) << 4) | fromhex(buf[1]); |
| 424 | buf += 2; |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | /* return -1 if error, 0 if OK */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 429 | static int put_packet_binary(GDBState *s, const char *buf, int len) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 430 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 431 | int csum, i; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 432 | uint8_t *p; |
| 433 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 434 | for(;;) { |
| 435 | p = s->last_packet; |
| 436 | *(p++) = '$'; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 437 | memcpy(p, buf, len); |
| 438 | p += len; |
| 439 | csum = 0; |
| 440 | for(i = 0; i < len; i++) { |
| 441 | csum += buf[i]; |
| 442 | } |
| 443 | *(p++) = '#'; |
| 444 | *(p++) = tohex((csum >> 4) & 0xf); |
| 445 | *(p++) = tohex((csum) & 0xf); |
| 446 | |
| 447 | s->last_packet_len = p - s->last_packet; |
| 448 | put_buffer(s, (uint8_t *)s->last_packet, s->last_packet_len); |
| 449 | |
| 450 | #ifdef CONFIG_USER_ONLY |
| 451 | i = get_char(s); |
| 452 | if (i < 0) |
| 453 | return -1; |
| 454 | if (i == '+') |
| 455 | break; |
| 456 | #else |
| 457 | break; |
| 458 | #endif |
| 459 | } |
| 460 | return 0; |
| 461 | } |
| 462 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 463 | /* return -1 if error, 0 if OK */ |
| 464 | static int put_packet(GDBState *s, const char *buf) |
| 465 | { |
| 466 | #ifdef DEBUG_GDB |
| 467 | printf("reply='%s'\n", buf); |
| 468 | #endif |
| 469 | |
| 470 | return put_packet_binary(s, buf, strlen(buf)); |
| 471 | } |
| 472 | |
| 473 | /* The GDB remote protocol transfers values in target byte order. This means |
| 474 | we can use the raw memory access routines to access the value buffer. |
| 475 | Conveniently, these also handle the case where the buffer is mis-aligned. |
| 476 | */ |
| 477 | #define GET_REG8(val) do { \ |
| 478 | stb_p(mem_buf, val); \ |
| 479 | return 1; \ |
| 480 | } while(0) |
| 481 | #define GET_REG16(val) do { \ |
| 482 | stw_p(mem_buf, val); \ |
| 483 | return 2; \ |
| 484 | } while(0) |
| 485 | #define GET_REG32(val) do { \ |
| 486 | stl_p(mem_buf, val); \ |
| 487 | return 4; \ |
| 488 | } while(0) |
| 489 | #define GET_REG64(val) do { \ |
| 490 | stq_p(mem_buf, val); \ |
| 491 | return 8; \ |
| 492 | } while(0) |
| 493 | |
| 494 | #if TARGET_LONG_BITS == 64 |
| 495 | #define GET_REGL(val) GET_REG64(val) |
| 496 | #define ldtul_p(addr) ldq_p(addr) |
| 497 | #else |
| 498 | #define GET_REGL(val) GET_REG32(val) |
| 499 | #define ldtul_p(addr) ldl_p(addr) |
| 500 | #endif |
| 501 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 502 | #if defined(TARGET_I386) |
| 503 | |
| 504 | #ifdef TARGET_X86_64 |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 505 | static const int gpr_map[16] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 506 | R_EAX, R_EBX, R_ECX, R_EDX, R_ESI, R_EDI, R_EBP, R_ESP, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 507 | 8, 9, 10, 11, 12, 13, 14, 15 |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 508 | }; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 509 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 510 | static const int gpr_map[8] = {0, 1, 2, 3, 4, 5, 6, 7}; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 511 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 512 | |
| 513 | #define NUM_CORE_REGS (CPU_NB_REGS * 2 + 25) |
| 514 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 515 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 516 | { |
| 517 | if (n < CPU_NB_REGS) { |
| 518 | GET_REGL(env->regs[gpr_map[n]]); |
| 519 | } else if (n >= CPU_NB_REGS + 8 && n < CPU_NB_REGS + 16) { |
| 520 | /* FIXME: byteswap float values. */ |
| 521 | #ifdef USE_X86LDOUBLE |
| 522 | memcpy(mem_buf, &env->fpregs[n - (CPU_NB_REGS + 8)], 10); |
| 523 | #else |
| 524 | memset(mem_buf, 0, 10); |
| 525 | #endif |
| 526 | return 10; |
| 527 | } else if (n >= CPU_NB_REGS + 24) { |
| 528 | n -= CPU_NB_REGS + 24; |
| 529 | if (n < CPU_NB_REGS) { |
| 530 | stq_p(mem_buf, env->xmm_regs[n].XMM_Q(0)); |
| 531 | stq_p(mem_buf + 8, env->xmm_regs[n].XMM_Q(1)); |
| 532 | return 16; |
| 533 | } else if (n == CPU_NB_REGS) { |
| 534 | GET_REG32(env->mxcsr); |
David 'Digit' Turner | c005246 | 2014-02-25 18:39:29 +0100 | [diff] [blame] | 535 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 536 | } else { |
| 537 | n -= CPU_NB_REGS; |
| 538 | switch (n) { |
| 539 | case 0: GET_REGL(env->eip); |
| 540 | case 1: GET_REG32(env->eflags); |
| 541 | case 2: GET_REG32(env->segs[R_CS].selector); |
| 542 | case 3: GET_REG32(env->segs[R_SS].selector); |
| 543 | case 4: GET_REG32(env->segs[R_DS].selector); |
| 544 | case 5: GET_REG32(env->segs[R_ES].selector); |
| 545 | case 6: GET_REG32(env->segs[R_FS].selector); |
| 546 | case 7: GET_REG32(env->segs[R_GS].selector); |
| 547 | /* 8...15 x87 regs. */ |
| 548 | case 16: GET_REG32(env->fpuc); |
| 549 | case 17: GET_REG32((env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11); |
| 550 | case 18: GET_REG32(0); /* ftag */ |
| 551 | case 19: GET_REG32(0); /* fiseg */ |
| 552 | case 20: GET_REG32(0); /* fioff */ |
| 553 | case 21: GET_REG32(0); /* foseg */ |
| 554 | case 22: GET_REG32(0); /* fooff */ |
| 555 | case 23: GET_REG32(0); /* fop */ |
| 556 | /* 24+ xmm regs. */ |
| 557 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 558 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 559 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 560 | } |
| 561 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 562 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int i) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 563 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 564 | uint32_t tmp; |
| 565 | |
| 566 | if (i < CPU_NB_REGS) { |
| 567 | env->regs[gpr_map[i]] = ldtul_p(mem_buf); |
| 568 | return sizeof(target_ulong); |
| 569 | } else if (i >= CPU_NB_REGS + 8 && i < CPU_NB_REGS + 16) { |
| 570 | i -= CPU_NB_REGS + 8; |
| 571 | #ifdef USE_X86LDOUBLE |
| 572 | memcpy(&env->fpregs[i], mem_buf, 10); |
| 573 | #endif |
| 574 | return 10; |
| 575 | } else if (i >= CPU_NB_REGS + 24) { |
| 576 | i -= CPU_NB_REGS + 24; |
| 577 | if (i < CPU_NB_REGS) { |
| 578 | env->xmm_regs[i].XMM_Q(0) = ldq_p(mem_buf); |
| 579 | env->xmm_regs[i].XMM_Q(1) = ldq_p(mem_buf + 8); |
| 580 | return 16; |
| 581 | } else if (i == CPU_NB_REGS) { |
| 582 | env->mxcsr = ldl_p(mem_buf); |
| 583 | return 4; |
| 584 | } |
| 585 | } else { |
| 586 | i -= CPU_NB_REGS; |
| 587 | switch (i) { |
| 588 | case 0: env->eip = ldtul_p(mem_buf); return sizeof(target_ulong); |
| 589 | case 1: env->eflags = ldl_p(mem_buf); return 4; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 590 | #if defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 591 | #define LOAD_SEG(index, sreg)\ |
| 592 | tmp = ldl_p(mem_buf);\ |
| 593 | if (tmp != env->segs[sreg].selector)\ |
| 594 | cpu_x86_load_seg(env, sreg, tmp); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 595 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 596 | /* FIXME: Honor segment registers. Needs to avoid raising an exception |
| 597 | when the selector is invalid. */ |
| 598 | #define LOAD_SEG(index, sreg) do {} while(0) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 599 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 600 | case 2: LOAD_SEG(10, R_CS); return 4; |
| 601 | case 3: LOAD_SEG(11, R_SS); return 4; |
| 602 | case 4: LOAD_SEG(12, R_DS); return 4; |
| 603 | case 5: LOAD_SEG(13, R_ES); return 4; |
| 604 | case 6: LOAD_SEG(14, R_FS); return 4; |
| 605 | case 7: LOAD_SEG(15, R_GS); return 4; |
| 606 | /* 8...15 x87 regs. */ |
| 607 | case 16: env->fpuc = ldl_p(mem_buf); return 4; |
| 608 | case 17: |
| 609 | tmp = ldl_p(mem_buf); |
| 610 | env->fpstt = (tmp >> 11) & 7; |
| 611 | env->fpus = tmp & ~0x3800; |
| 612 | return 4; |
| 613 | case 18: /* ftag */ return 4; |
| 614 | case 19: /* fiseg */ return 4; |
| 615 | case 20: /* fioff */ return 4; |
| 616 | case 21: /* foseg */ return 4; |
| 617 | case 22: /* fooff */ return 4; |
| 618 | case 23: /* fop */ return 4; |
| 619 | /* 24+ xmm regs. */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 620 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 621 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 622 | /* Unrecognised register. */ |
| 623 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 624 | } |
| 625 | |
| 626 | #elif defined (TARGET_PPC) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 627 | |
| 628 | /* Old gdb always expects FP registers. Newer (xml-aware) gdb only |
| 629 | expects whatever the target description contains. Due to a |
| 630 | historical mishap the FP registers appear in between core integer |
| 631 | regs and PC, MSR, CR, and so forth. We hack round this by giving the |
| 632 | FP regs zero size when talking to a newer gdb. */ |
| 633 | #define NUM_CORE_REGS 71 |
| 634 | #if defined (TARGET_PPC64) |
| 635 | #define GDB_CORE_XML "power64-core.xml" |
| 636 | #else |
| 637 | #define GDB_CORE_XML "power-core.xml" |
| 638 | #endif |
| 639 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 640 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 641 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 642 | if (n < 32) { |
| 643 | /* gprs */ |
| 644 | GET_REGL(env->gpr[n]); |
| 645 | } else if (n < 64) { |
| 646 | /* fprs */ |
| 647 | if (gdb_has_xml) |
| 648 | return 0; |
| 649 | stfq_p(mem_buf, env->fpr[n-32]); |
| 650 | return 8; |
| 651 | } else { |
| 652 | switch (n) { |
| 653 | case 64: GET_REGL(env->nip); |
| 654 | case 65: GET_REGL(env->msr); |
| 655 | case 66: |
| 656 | { |
| 657 | uint32_t cr = 0; |
| 658 | int i; |
| 659 | for (i = 0; i < 8; i++) |
| 660 | cr |= env->crf[i] << (32 - ((i + 1) * 4)); |
| 661 | GET_REG32(cr); |
| 662 | } |
| 663 | case 67: GET_REGL(env->lr); |
| 664 | case 68: GET_REGL(env->ctr); |
| 665 | case 69: GET_REGL(env->xer); |
| 666 | case 70: |
| 667 | { |
| 668 | if (gdb_has_xml) |
| 669 | return 0; |
| 670 | GET_REG32(0); /* fpscr */ |
| 671 | } |
| 672 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 673 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 674 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 675 | } |
| 676 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 677 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 678 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 679 | if (n < 32) { |
| 680 | /* gprs */ |
| 681 | env->gpr[n] = ldtul_p(mem_buf); |
| 682 | return sizeof(target_ulong); |
| 683 | } else if (n < 64) { |
| 684 | /* fprs */ |
| 685 | if (gdb_has_xml) |
| 686 | return 0; |
| 687 | env->fpr[n-32] = ldfq_p(mem_buf); |
| 688 | return 8; |
| 689 | } else { |
| 690 | switch (n) { |
| 691 | case 64: |
| 692 | env->nip = ldtul_p(mem_buf); |
| 693 | return sizeof(target_ulong); |
| 694 | case 65: |
| 695 | ppc_store_msr(env, ldtul_p(mem_buf)); |
| 696 | return sizeof(target_ulong); |
| 697 | case 66: |
| 698 | { |
| 699 | uint32_t cr = ldl_p(mem_buf); |
| 700 | int i; |
| 701 | for (i = 0; i < 8; i++) |
| 702 | env->crf[i] = (cr >> (32 - ((i + 1) * 4))) & 0xF; |
| 703 | return 4; |
| 704 | } |
| 705 | case 67: |
| 706 | env->lr = ldtul_p(mem_buf); |
| 707 | return sizeof(target_ulong); |
| 708 | case 68: |
| 709 | env->ctr = ldtul_p(mem_buf); |
| 710 | return sizeof(target_ulong); |
| 711 | case 69: |
| 712 | env->xer = ldtul_p(mem_buf); |
| 713 | return sizeof(target_ulong); |
| 714 | case 70: |
| 715 | /* fpscr */ |
| 716 | if (gdb_has_xml) |
| 717 | return 0; |
| 718 | return 4; |
| 719 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 720 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 721 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 722 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 723 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 724 | #elif defined (TARGET_SPARC) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 725 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 726 | #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) |
| 727 | #define NUM_CORE_REGS 86 |
| 728 | #else |
| 729 | #define NUM_CORE_REGS 72 |
| 730 | #endif |
| 731 | |
| 732 | #ifdef TARGET_ABI32 |
| 733 | #define GET_REGA(val) GET_REG32(val) |
| 734 | #else |
| 735 | #define GET_REGA(val) GET_REGL(val) |
| 736 | #endif |
| 737 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 738 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 739 | { |
| 740 | if (n < 8) { |
| 741 | /* g0..g7 */ |
| 742 | GET_REGA(env->gregs[n]); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 743 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 744 | if (n < 32) { |
| 745 | /* register window */ |
| 746 | GET_REGA(env->regwptr[n - 8]); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 747 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 748 | #if defined(TARGET_ABI32) || !defined(TARGET_SPARC64) |
| 749 | if (n < 64) { |
| 750 | /* fprs */ |
| 751 | GET_REG32(*((uint32_t *)&env->fpr[n - 32])); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 752 | } |
| 753 | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 754 | switch (n) { |
| 755 | case 64: GET_REGA(env->y); |
| 756 | case 65: GET_REGA(GET_PSR(env)); |
| 757 | case 66: GET_REGA(env->wim); |
| 758 | case 67: GET_REGA(env->tbr); |
| 759 | case 68: GET_REGA(env->pc); |
| 760 | case 69: GET_REGA(env->npc); |
| 761 | case 70: GET_REGA(env->fsr); |
| 762 | case 71: GET_REGA(0); /* csr */ |
| 763 | default: GET_REGA(0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 764 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 765 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 766 | if (n < 64) { |
| 767 | /* f0-f31 */ |
| 768 | GET_REG32(*((uint32_t *)&env->fpr[n - 32])); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 769 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 770 | if (n < 80) { |
| 771 | /* f32-f62 (double width, even numbers only) */ |
| 772 | uint64_t val; |
| 773 | |
| 774 | val = (uint64_t)*((uint32_t *)&env->fpr[(n - 64) * 2 + 32]) << 32; |
| 775 | val |= *((uint32_t *)&env->fpr[(n - 64) * 2 + 33]); |
| 776 | GET_REG64(val); |
| 777 | } |
| 778 | switch (n) { |
| 779 | case 80: GET_REGL(env->pc); |
| 780 | case 81: GET_REGL(env->npc); |
| 781 | case 82: GET_REGL(((uint64_t)GET_CCR(env) << 32) | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 782 | ((env->asi & 0xff) << 24) | |
| 783 | ((env->pstate & 0xfff) << 8) | |
| 784 | GET_CWP64(env)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 785 | case 83: GET_REGL(env->fsr); |
| 786 | case 84: GET_REGL(env->fprs); |
| 787 | case 85: GET_REGL(env->y); |
| 788 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 789 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 790 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 791 | } |
| 792 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 793 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 794 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 795 | #if defined(TARGET_ABI32) |
| 796 | abi_ulong tmp; |
| 797 | |
| 798 | tmp = ldl_p(mem_buf); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 799 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 800 | target_ulong tmp; |
| 801 | |
| 802 | tmp = ldtul_p(mem_buf); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 803 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 804 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 805 | if (n < 8) { |
| 806 | /* g0..g7 */ |
| 807 | env->gregs[n] = tmp; |
| 808 | } else if (n < 32) { |
| 809 | /* register window */ |
| 810 | env->regwptr[n - 8] = tmp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 811 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 812 | #if defined(TARGET_ABI32) || !defined(TARGET_SPARC64) |
| 813 | else if (n < 64) { |
| 814 | /* fprs */ |
| 815 | *((uint32_t *)&env->fpr[n - 32]) = tmp; |
| 816 | } else { |
| 817 | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */ |
| 818 | switch (n) { |
| 819 | case 64: env->y = tmp; break; |
| 820 | case 65: PUT_PSR(env, tmp); break; |
| 821 | case 66: env->wim = tmp; break; |
| 822 | case 67: env->tbr = tmp; break; |
| 823 | case 68: env->pc = tmp; break; |
| 824 | case 69: env->npc = tmp; break; |
| 825 | case 70: env->fsr = tmp; break; |
| 826 | default: return 0; |
| 827 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 828 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 829 | return 4; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 830 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 831 | else if (n < 64) { |
| 832 | /* f0-f31 */ |
| 833 | env->fpr[n] = ldfl_p(mem_buf); |
| 834 | return 4; |
| 835 | } else if (n < 80) { |
| 836 | /* f32-f62 (double width, even numbers only) */ |
| 837 | *((uint32_t *)&env->fpr[(n - 64) * 2 + 32]) = tmp >> 32; |
| 838 | *((uint32_t *)&env->fpr[(n - 64) * 2 + 33]) = tmp; |
| 839 | } else { |
| 840 | switch (n) { |
| 841 | case 80: env->pc = tmp; break; |
| 842 | case 81: env->npc = tmp; break; |
| 843 | case 82: |
| 844 | PUT_CCR(env, tmp >> 32); |
| 845 | env->asi = (tmp >> 24) & 0xff; |
| 846 | env->pstate = (tmp >> 8) & 0xfff; |
| 847 | PUT_CWP64(env, tmp & 0xff); |
| 848 | break; |
| 849 | case 83: env->fsr = tmp; break; |
| 850 | case 84: env->fprs = tmp; break; |
| 851 | case 85: env->y = tmp; break; |
| 852 | default: return 0; |
| 853 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 854 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 855 | return 8; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 856 | #endif |
| 857 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 858 | #elif defined (TARGET_ARM) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 859 | |
| 860 | /* Old gdb always expect FPA registers. Newer (xml-aware) gdb only expect |
| 861 | whatever the target description contains. Due to a historical mishap |
| 862 | the FPA registers appear in between core integer regs and the CPSR. |
| 863 | We hack round this by giving the FPA regs zero size when talking to a |
| 864 | newer gdb. */ |
| 865 | #define NUM_CORE_REGS 26 |
| 866 | #define GDB_CORE_XML "arm-core.xml" |
| 867 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 868 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 869 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 870 | if (n < 16) { |
| 871 | /* Core integer register. */ |
| 872 | GET_REG32(env->regs[n]); |
| 873 | } |
| 874 | if (n < 24) { |
| 875 | /* FPA registers. */ |
| 876 | if (gdb_has_xml) |
| 877 | return 0; |
| 878 | memset(mem_buf, 0, 12); |
| 879 | return 12; |
| 880 | } |
| 881 | switch (n) { |
| 882 | case 24: |
| 883 | /* FPA status register. */ |
| 884 | if (gdb_has_xml) |
| 885 | return 0; |
| 886 | GET_REG32(0); |
| 887 | case 25: |
| 888 | /* CPSR */ |
| 889 | GET_REG32(cpsr_read(env)); |
| 890 | } |
| 891 | /* Unknown register. */ |
| 892 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 893 | } |
| 894 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 895 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 896 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 897 | uint32_t tmp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 898 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 899 | tmp = ldl_p(mem_buf); |
| 900 | |
| 901 | /* Mask out low bit of PC to workaround gdb bugs. This will probably |
| 902 | cause problems if we ever implement the Jazelle DBX extensions. */ |
| 903 | if (n == 15) |
| 904 | tmp &= ~1; |
| 905 | |
| 906 | if (n < 16) { |
| 907 | /* Core integer register. */ |
| 908 | env->regs[n] = tmp; |
| 909 | return 4; |
| 910 | } |
| 911 | if (n < 24) { /* 16-23 */ |
| 912 | /* FPA registers (ignored). */ |
| 913 | if (gdb_has_xml) |
| 914 | return 0; |
| 915 | return 12; |
| 916 | } |
| 917 | switch (n) { |
| 918 | case 24: |
| 919 | /* FPA status register (ignored). */ |
| 920 | if (gdb_has_xml) |
| 921 | return 0; |
| 922 | return 4; |
| 923 | case 25: |
| 924 | /* CPSR */ |
| 925 | cpsr_write (env, tmp, 0xffffffff); |
| 926 | return 4; |
| 927 | } |
| 928 | /* Unknown register. */ |
| 929 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 930 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 931 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 932 | #elif defined (TARGET_M68K) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 933 | |
| 934 | #define NUM_CORE_REGS 18 |
| 935 | |
| 936 | #define GDB_CORE_XML "cf-core.xml" |
| 937 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 938 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 939 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 940 | if (n < 8) { |
| 941 | /* D0-D7 */ |
| 942 | GET_REG32(env->dregs[n]); |
| 943 | } else if (n < 16) { |
| 944 | /* A0-A7 */ |
| 945 | GET_REG32(env->aregs[n - 8]); |
| 946 | } else { |
| 947 | switch (n) { |
| 948 | case 16: GET_REG32(env->sr); |
| 949 | case 17: GET_REG32(env->pc); |
| 950 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 951 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 952 | /* FP registers not included here because they vary between |
| 953 | ColdFire and m68k. Use XML bits for these. */ |
| 954 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 955 | } |
| 956 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 957 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 958 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 959 | uint32_t tmp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 960 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 961 | tmp = ldl_p(mem_buf); |
| 962 | |
| 963 | if (n < 8) { |
| 964 | /* D0-D7 */ |
| 965 | env->dregs[n] = tmp; |
| 966 | } else if (n < 8) { |
| 967 | /* A0-A7 */ |
| 968 | env->aregs[n - 8] = tmp; |
| 969 | } else { |
| 970 | switch (n) { |
| 971 | case 16: env->sr = tmp; break; |
| 972 | case 17: env->pc = tmp; break; |
| 973 | default: return 0; |
| 974 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 975 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 976 | return 4; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 977 | } |
| 978 | #elif defined (TARGET_MIPS) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 979 | |
| 980 | #define NUM_CORE_REGS 73 |
| 981 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 982 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 983 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 984 | if (n < 32) { |
| 985 | GET_REGL(env->active_tc.gpr[n]); |
| 986 | } |
| 987 | if (env->CP0_Config1 & (1 << CP0C1_FP)) { |
| 988 | if (n >= 38 && n < 70) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 989 | if (env->CP0_Status & (1 << CP0St_FR)) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 990 | GET_REGL(env->active_fpu.fpr[n - 38].d); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 991 | else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 992 | GET_REGL(env->active_fpu.fpr[n - 38].w[FP_ENDIAN_IDX]); |
| 993 | } |
| 994 | switch (n) { |
| 995 | case 70: GET_REGL((int32_t)env->active_fpu.fcr31); |
| 996 | case 71: GET_REGL((int32_t)env->active_fpu.fcr0); |
| 997 | } |
| 998 | } |
| 999 | switch (n) { |
| 1000 | case 32: GET_REGL((int32_t)env->CP0_Status); |
| 1001 | case 33: GET_REGL(env->active_tc.LO[0]); |
| 1002 | case 34: GET_REGL(env->active_tc.HI[0]); |
| 1003 | case 35: GET_REGL(env->CP0_BadVAddr); |
| 1004 | case 36: GET_REGL((int32_t)env->CP0_Cause); |
| 1005 | case 37: GET_REGL(env->active_tc.PC); |
| 1006 | case 72: GET_REGL(0); /* fp */ |
| 1007 | case 89: GET_REGL((int32_t)env->CP0_PRid); |
| 1008 | } |
| 1009 | if (n >= 73 && n <= 88) { |
| 1010 | /* 16 embedded regs. */ |
| 1011 | GET_REGL(0); |
| 1012 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1013 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1014 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1015 | } |
| 1016 | |
| 1017 | /* convert MIPS rounding mode in FCR31 to IEEE library */ |
| 1018 | static unsigned int ieee_rm[] = |
| 1019 | { |
| 1020 | float_round_nearest_even, |
| 1021 | float_round_to_zero, |
| 1022 | float_round_up, |
| 1023 | float_round_down |
| 1024 | }; |
| 1025 | #define RESTORE_ROUNDING_MODE \ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1026 | set_float_rounding_mode(ieee_rm[env->active_fpu.fcr31 & 3], &env->active_fpu.fp_status) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1027 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1028 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1029 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1030 | target_ulong tmp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1031 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1032 | tmp = ldtul_p(mem_buf); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1033 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1034 | if (n < 32) { |
| 1035 | env->active_tc.gpr[n] = tmp; |
| 1036 | return sizeof(target_ulong); |
| 1037 | } |
| 1038 | if (env->CP0_Config1 & (1 << CP0C1_FP) |
| 1039 | && n >= 38 && n < 73) { |
| 1040 | if (n < 70) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1041 | if (env->CP0_Status & (1 << CP0St_FR)) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1042 | env->active_fpu.fpr[n - 38].d = tmp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1043 | else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1044 | env->active_fpu.fpr[n - 38].w[FP_ENDIAN_IDX] = tmp; |
| 1045 | } |
| 1046 | switch (n) { |
| 1047 | case 70: |
| 1048 | env->active_fpu.fcr31 = tmp & 0xFF83FFFF; |
| 1049 | /* set rounding mode */ |
| 1050 | RESTORE_ROUNDING_MODE; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1051 | #ifndef CONFIG_SOFTFLOAT |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1052 | /* no floating point exception for native float */ |
| 1053 | SET_FP_ENABLE(env->active_fpu.fcr31, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1054 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1055 | break; |
| 1056 | case 71: env->active_fpu.fcr0 = tmp; break; |
| 1057 | } |
| 1058 | return sizeof(target_ulong); |
| 1059 | } |
| 1060 | switch (n) { |
| 1061 | case 32: env->CP0_Status = tmp; break; |
| 1062 | case 33: env->active_tc.LO[0] = tmp; break; |
| 1063 | case 34: env->active_tc.HI[0] = tmp; break; |
| 1064 | case 35: env->CP0_BadVAddr = tmp; break; |
| 1065 | case 36: env->CP0_Cause = tmp; break; |
| 1066 | case 37: env->active_tc.PC = tmp; break; |
| 1067 | case 72: /* fp, ignored */ break; |
David 'Digit' Turner | c005246 | 2014-02-25 18:39:29 +0100 | [diff] [blame] | 1068 | default: |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1069 | if (n > 89) |
| 1070 | return 0; |
| 1071 | /* Other registers are readonly. Ignore writes. */ |
| 1072 | break; |
| 1073 | } |
| 1074 | |
| 1075 | return sizeof(target_ulong); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1076 | } |
| 1077 | #elif defined (TARGET_SH4) |
| 1078 | |
| 1079 | /* Hint: Use "set architecture sh4" in GDB to see fpu registers */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1080 | /* FIXME: We should use XML for this. */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1081 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1082 | #define NUM_CORE_REGS 59 |
| 1083 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1084 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1085 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1086 | if (n < 8) { |
| 1087 | if ((env->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB)) { |
| 1088 | GET_REGL(env->gregs[n + 16]); |
| 1089 | } else { |
| 1090 | GET_REGL(env->gregs[n]); |
| 1091 | } |
| 1092 | } else if (n < 16) { |
| 1093 | GET_REGL(env->gregs[n - 8]); |
| 1094 | } else if (n >= 25 && n < 41) { |
| 1095 | GET_REGL(env->fregs[(n - 25) + ((env->fpscr & FPSCR_FR) ? 16 : 0)]); |
| 1096 | } else if (n >= 43 && n < 51) { |
| 1097 | GET_REGL(env->gregs[n - 43]); |
| 1098 | } else if (n >= 51 && n < 59) { |
| 1099 | GET_REGL(env->gregs[n - (51 - 16)]); |
| 1100 | } |
| 1101 | switch (n) { |
| 1102 | case 16: GET_REGL(env->pc); |
| 1103 | case 17: GET_REGL(env->pr); |
| 1104 | case 18: GET_REGL(env->gbr); |
| 1105 | case 19: GET_REGL(env->vbr); |
| 1106 | case 20: GET_REGL(env->mach); |
| 1107 | case 21: GET_REGL(env->macl); |
| 1108 | case 22: GET_REGL(env->sr); |
| 1109 | case 23: GET_REGL(env->fpul); |
| 1110 | case 24: GET_REGL(env->fpscr); |
| 1111 | case 41: GET_REGL(env->ssr); |
| 1112 | case 42: GET_REGL(env->spc); |
| 1113 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1114 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1115 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1116 | } |
| 1117 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1118 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1119 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1120 | uint32_t tmp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1121 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1122 | tmp = ldl_p(mem_buf); |
| 1123 | |
| 1124 | if (n < 8) { |
| 1125 | if ((env->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB)) { |
| 1126 | env->gregs[n + 16] = tmp; |
| 1127 | } else { |
| 1128 | env->gregs[n] = tmp; |
| 1129 | } |
| 1130 | return 4; |
| 1131 | } else if (n < 16) { |
| 1132 | env->gregs[n - 8] = tmp; |
| 1133 | return 4; |
| 1134 | } else if (n >= 25 && n < 41) { |
| 1135 | env->fregs[(n - 25) + ((env->fpscr & FPSCR_FR) ? 16 : 0)] = tmp; |
| 1136 | } else if (n >= 43 && n < 51) { |
| 1137 | env->gregs[n - 43] = tmp; |
| 1138 | return 4; |
| 1139 | } else if (n >= 51 && n < 59) { |
| 1140 | env->gregs[n - (51 - 16)] = tmp; |
| 1141 | return 4; |
| 1142 | } |
| 1143 | switch (n) { |
| 1144 | case 16: env->pc = tmp; |
| 1145 | case 17: env->pr = tmp; |
| 1146 | case 18: env->gbr = tmp; |
| 1147 | case 19: env->vbr = tmp; |
| 1148 | case 20: env->mach = tmp; |
| 1149 | case 21: env->macl = tmp; |
| 1150 | case 22: env->sr = tmp; |
| 1151 | case 23: env->fpul = tmp; |
| 1152 | case 24: env->fpscr = tmp; |
| 1153 | case 41: env->ssr = tmp; |
| 1154 | case 42: env->spc = tmp; |
| 1155 | default: return 0; |
| 1156 | } |
| 1157 | |
| 1158 | return 4; |
| 1159 | } |
| 1160 | #elif defined (TARGET_MICROBLAZE) |
| 1161 | |
| 1162 | #define NUM_CORE_REGS (32 + 5) |
| 1163 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1164 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1165 | { |
| 1166 | if (n < 32) { |
| 1167 | GET_REG32(env->regs[n]); |
| 1168 | } else { |
| 1169 | GET_REG32(env->sregs[n - 32]); |
| 1170 | } |
| 1171 | return 0; |
| 1172 | } |
| 1173 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1174 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1175 | { |
| 1176 | uint32_t tmp; |
| 1177 | |
| 1178 | if (n > NUM_CORE_REGS) |
| 1179 | return 0; |
| 1180 | |
| 1181 | tmp = ldl_p(mem_buf); |
| 1182 | |
| 1183 | if (n < 32) { |
| 1184 | env->regs[n] = tmp; |
| 1185 | } else { |
| 1186 | env->sregs[n - 32] = tmp; |
| 1187 | } |
| 1188 | return 4; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1189 | } |
| 1190 | #elif defined (TARGET_CRIS) |
| 1191 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1192 | #define NUM_CORE_REGS 49 |
| 1193 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1194 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1195 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1196 | uint8_t srs; |
| 1197 | |
| 1198 | srs = env->pregs[PR_SRS]; |
| 1199 | if (n < 16) { |
| 1200 | GET_REG32(env->regs[n]); |
| 1201 | } |
| 1202 | |
| 1203 | if (n >= 21 && n < 32) { |
| 1204 | GET_REG32(env->pregs[n - 16]); |
| 1205 | } |
| 1206 | if (n >= 33 && n < 49) { |
| 1207 | GET_REG32(env->sregs[srs][n - 33]); |
| 1208 | } |
| 1209 | switch (n) { |
| 1210 | case 16: GET_REG8(env->pregs[0]); |
| 1211 | case 17: GET_REG8(env->pregs[1]); |
| 1212 | case 18: GET_REG32(env->pregs[2]); |
| 1213 | case 19: GET_REG8(srs); |
| 1214 | case 20: GET_REG16(env->pregs[4]); |
| 1215 | case 32: GET_REG32(env->pc); |
| 1216 | } |
| 1217 | |
| 1218 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1219 | } |
| 1220 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1221 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1222 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1223 | uint32_t tmp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1224 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1225 | if (n > 49) |
| 1226 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1227 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1228 | tmp = ldl_p(mem_buf); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1229 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1230 | if (n < 16) { |
| 1231 | env->regs[n] = tmp; |
| 1232 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1233 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1234 | if (n >= 21 && n < 32) { |
| 1235 | env->pregs[n - 16] = tmp; |
| 1236 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1237 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1238 | /* FIXME: Should support function regs be writable? */ |
| 1239 | switch (n) { |
| 1240 | case 16: return 1; |
| 1241 | case 17: return 1; |
| 1242 | case 18: env->pregs[PR_PID] = tmp; break; |
| 1243 | case 19: return 1; |
| 1244 | case 20: return 2; |
| 1245 | case 32: env->pc = tmp; break; |
| 1246 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1247 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1248 | return 4; |
| 1249 | } |
| 1250 | #elif defined (TARGET_ALPHA) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1251 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1252 | #define NUM_CORE_REGS 65 |
| 1253 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1254 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1255 | { |
| 1256 | if (n < 31) { |
| 1257 | GET_REGL(env->ir[n]); |
| 1258 | } |
| 1259 | else if (n == 31) { |
| 1260 | GET_REGL(0); |
| 1261 | } |
| 1262 | else if (n<63) { |
| 1263 | uint64_t val; |
| 1264 | |
| 1265 | val=*((uint64_t *)&env->fir[n-32]); |
| 1266 | GET_REGL(val); |
| 1267 | } |
| 1268 | else if (n==63) { |
| 1269 | GET_REGL(env->fpcr); |
| 1270 | } |
| 1271 | else if (n==64) { |
| 1272 | GET_REGL(env->pc); |
| 1273 | } |
| 1274 | else { |
| 1275 | GET_REGL(0); |
| 1276 | } |
| 1277 | |
| 1278 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1279 | } |
| 1280 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1281 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1282 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1283 | target_ulong tmp; |
| 1284 | tmp = ldtul_p(mem_buf); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1285 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1286 | if (n < 31) { |
| 1287 | env->ir[n] = tmp; |
| 1288 | } |
| 1289 | |
| 1290 | if (n > 31 && n < 63) { |
| 1291 | env->fir[n - 32] = ldfl_p(mem_buf); |
| 1292 | } |
| 1293 | |
| 1294 | if (n == 64 ) { |
| 1295 | env->pc=tmp; |
| 1296 | } |
| 1297 | |
| 1298 | return 8; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1299 | } |
| 1300 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1301 | |
| 1302 | #define NUM_CORE_REGS 0 |
| 1303 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1304 | static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1305 | { |
| 1306 | return 0; |
| 1307 | } |
| 1308 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1309 | static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1310 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1311 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1312 | } |
| 1313 | |
| 1314 | #endif |
| 1315 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1316 | static int num_g_regs = NUM_CORE_REGS; |
| 1317 | |
| 1318 | #ifdef GDB_CORE_XML |
| 1319 | /* Encode data using the encoding for 'x' packets. */ |
| 1320 | static int memtox(char *buf, const char *mem, int len) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1321 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1322 | char *p = buf; |
| 1323 | char c; |
| 1324 | |
| 1325 | while (len--) { |
| 1326 | c = *(mem++); |
| 1327 | switch (c) { |
| 1328 | case '#': case '$': case '*': case '}': |
| 1329 | *(p++) = '}'; |
| 1330 | *(p++) = c ^ 0x20; |
| 1331 | break; |
| 1332 | default: |
| 1333 | *(p++) = c; |
| 1334 | break; |
| 1335 | } |
| 1336 | } |
| 1337 | return p - buf; |
| 1338 | } |
| 1339 | |
| 1340 | static const char *get_feature_xml(const char *p, const char **newp) |
| 1341 | { |
| 1342 | extern const char *const xml_builtin[][2]; |
| 1343 | size_t len; |
| 1344 | int i; |
| 1345 | const char *name; |
| 1346 | static char target_xml[1024]; |
| 1347 | |
| 1348 | len = 0; |
| 1349 | while (p[len] && p[len] != ':') |
| 1350 | len++; |
| 1351 | *newp = p + len; |
| 1352 | |
| 1353 | name = NULL; |
| 1354 | if (strncmp(p, "target.xml", len) == 0) { |
| 1355 | /* Generate the XML description for this CPU. */ |
| 1356 | if (!target_xml[0]) { |
| 1357 | GDBRegisterState *r; |
| 1358 | |
| 1359 | snprintf(target_xml, sizeof(target_xml), |
| 1360 | "<?xml version=\"1.0\"?>" |
| 1361 | "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">" |
| 1362 | "<target>" |
| 1363 | "<xi:include href=\"%s\"/>", |
| 1364 | GDB_CORE_XML); |
| 1365 | |
David 'Digit' Turner | 4ab1225 | 2014-03-24 11:29:53 +0100 | [diff] [blame] | 1366 | for (r = QTAILQ_FIRST(&cpus)->gdb_regs; r; r = r->next) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1367 | pstrcat(target_xml, sizeof(target_xml), "<xi:include href=\""); |
| 1368 | pstrcat(target_xml, sizeof(target_xml), r->xml); |
| 1369 | pstrcat(target_xml, sizeof(target_xml), "\"/>"); |
| 1370 | } |
| 1371 | pstrcat(target_xml, sizeof(target_xml), "</target>"); |
| 1372 | } |
| 1373 | return target_xml; |
| 1374 | } |
| 1375 | for (i = 0; ; i++) { |
| 1376 | name = xml_builtin[i][0]; |
| 1377 | if (!name || (strncmp(name, p, len) == 0 && strlen(name) == len)) |
| 1378 | break; |
| 1379 | } |
| 1380 | return name ? xml_builtin[i][1] : NULL; |
| 1381 | } |
| 1382 | #endif |
| 1383 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1384 | static int gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int reg) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1385 | { |
| 1386 | GDBRegisterState *r; |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1387 | CPUState *cpu = ENV_GET_CPU(env); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1388 | |
| 1389 | if (reg < NUM_CORE_REGS) |
| 1390 | return cpu_gdb_read_register(env, mem_buf, reg); |
| 1391 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1392 | for (r = cpu->gdb_regs; r; r = r->next) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1393 | if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) { |
| 1394 | return r->get_reg(env, mem_buf, reg - r->base_reg); |
| 1395 | } |
| 1396 | } |
| 1397 | return 0; |
| 1398 | } |
| 1399 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1400 | static int gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int reg) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1401 | { |
| 1402 | GDBRegisterState *r; |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1403 | CPUState *cpu = ENV_GET_CPU(env); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1404 | |
| 1405 | if (reg < NUM_CORE_REGS) |
| 1406 | return cpu_gdb_write_register(env, mem_buf, reg); |
| 1407 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1408 | for (r = cpu->gdb_regs; r; r = r->next) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1409 | if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) { |
| 1410 | return r->set_reg(env, mem_buf, reg - r->base_reg); |
| 1411 | } |
| 1412 | } |
| 1413 | return 0; |
| 1414 | } |
| 1415 | |
| 1416 | /* Register a supplemental set of CPU registers. If g_pos is nonzero it |
| 1417 | specifies the first register number and these registers are included in |
| 1418 | a standard "g" packet. Direction is relative to gdb, i.e. get_reg is |
| 1419 | gdb reading a CPU register, and set_reg is gdb modifying a CPU register. |
| 1420 | */ |
| 1421 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1422 | void gdb_register_coprocessor(CPUState *cpu, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1423 | gdb_reg_cb get_reg, gdb_reg_cb set_reg, |
| 1424 | int num_regs, const char *xml, int g_pos) |
| 1425 | { |
| 1426 | GDBRegisterState *s; |
| 1427 | GDBRegisterState **p; |
| 1428 | static int last_reg = NUM_CORE_REGS; |
| 1429 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1430 | s = (GDBRegisterState *)g_malloc0(sizeof(GDBRegisterState)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1431 | s->base_reg = last_reg; |
| 1432 | s->num_regs = num_regs; |
| 1433 | s->get_reg = get_reg; |
| 1434 | s->set_reg = set_reg; |
| 1435 | s->xml = xml; |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1436 | p = &cpu->gdb_regs; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1437 | while (*p) { |
| 1438 | /* Check for duplicates. */ |
| 1439 | if (strcmp((*p)->xml, xml) == 0) |
| 1440 | return; |
| 1441 | p = &(*p)->next; |
| 1442 | } |
| 1443 | /* Add to end of list. */ |
| 1444 | last_reg += num_regs; |
| 1445 | *p = s; |
| 1446 | if (g_pos) { |
| 1447 | if (g_pos != s->base_reg) { |
| 1448 | fprintf(stderr, "Error: Bad gdb register numbering for '%s'\n" |
| 1449 | "Expected %d got %d\n", xml, g_pos, s->base_reg); |
| 1450 | } else { |
| 1451 | num_g_regs = last_reg; |
| 1452 | } |
| 1453 | } |
| 1454 | } |
| 1455 | |
| 1456 | #ifndef CONFIG_USER_ONLY |
| 1457 | static const int xlat_gdb_type[] = { |
| 1458 | [GDB_WATCHPOINT_WRITE] = BP_GDB | BP_MEM_WRITE, |
| 1459 | [GDB_WATCHPOINT_READ] = BP_GDB | BP_MEM_READ, |
| 1460 | [GDB_WATCHPOINT_ACCESS] = BP_GDB | BP_MEM_ACCESS, |
| 1461 | }; |
| 1462 | #endif |
| 1463 | |
| 1464 | static int gdb_breakpoint_insert(target_ulong addr, target_ulong len, int type) |
| 1465 | { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1466 | CPUState *cpu; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1467 | int err = 0; |
| 1468 | |
| 1469 | if (kvm_enabled()) |
David 'Digit' Turner | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 1470 | return kvm_insert_breakpoint(ENV_GET_CPU(gdbserver_state->c_cpu), addr, len, type); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1471 | |
| 1472 | switch (type) { |
| 1473 | case GDB_BREAKPOINT_SW: |
| 1474 | case GDB_BREAKPOINT_HW: |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1475 | CPU_FOREACH(cpu) { |
| 1476 | err = cpu_breakpoint_insert(cpu->env_ptr, addr, BP_GDB, NULL); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1477 | if (err) |
| 1478 | break; |
| 1479 | } |
| 1480 | return err; |
| 1481 | #ifndef CONFIG_USER_ONLY |
| 1482 | case GDB_WATCHPOINT_WRITE: |
| 1483 | case GDB_WATCHPOINT_READ: |
| 1484 | case GDB_WATCHPOINT_ACCESS: |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1485 | CPU_FOREACH(cpu) { |
| 1486 | err = cpu_watchpoint_insert(cpu->env_ptr, addr, len, xlat_gdb_type[type], |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1487 | NULL); |
| 1488 | if (err) |
| 1489 | break; |
| 1490 | } |
| 1491 | return err; |
| 1492 | #endif |
| 1493 | default: |
| 1494 | return -ENOSYS; |
| 1495 | } |
| 1496 | } |
| 1497 | |
| 1498 | static int gdb_breakpoint_remove(target_ulong addr, target_ulong len, int type) |
| 1499 | { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1500 | CPUState *cpu; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1501 | int err = 0; |
| 1502 | |
| 1503 | if (kvm_enabled()) |
David 'Digit' Turner | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 1504 | return kvm_remove_breakpoint(ENV_GET_CPU(gdbserver_state->c_cpu), addr, len, type); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1505 | |
| 1506 | switch (type) { |
| 1507 | case GDB_BREAKPOINT_SW: |
| 1508 | case GDB_BREAKPOINT_HW: |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1509 | CPU_FOREACH(cpu) { |
| 1510 | err = cpu_breakpoint_remove(cpu->env_ptr, addr, BP_GDB); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1511 | if (err) |
| 1512 | break; |
| 1513 | } |
| 1514 | return err; |
| 1515 | #ifndef CONFIG_USER_ONLY |
| 1516 | case GDB_WATCHPOINT_WRITE: |
| 1517 | case GDB_WATCHPOINT_READ: |
| 1518 | case GDB_WATCHPOINT_ACCESS: |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1519 | CPU_FOREACH(cpu) { |
| 1520 | err = cpu_watchpoint_remove(cpu->env_ptr, addr, len, xlat_gdb_type[type]); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1521 | if (err) |
| 1522 | break; |
| 1523 | } |
| 1524 | return err; |
| 1525 | #endif |
| 1526 | default: |
| 1527 | return -ENOSYS; |
| 1528 | } |
| 1529 | } |
| 1530 | |
| 1531 | static void gdb_breakpoint_remove_all(void) |
| 1532 | { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1533 | CPUState *cpu; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1534 | |
| 1535 | if (kvm_enabled()) { |
David 'Digit' Turner | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 1536 | kvm_remove_all_breakpoints(ENV_GET_CPU(gdbserver_state->c_cpu)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1537 | return; |
| 1538 | } |
| 1539 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1540 | CPU_FOREACH(cpu) { |
| 1541 | cpu_breakpoint_remove_all(cpu->env_ptr, BP_GDB); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1542 | #ifndef CONFIG_USER_ONLY |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1543 | cpu_watchpoint_remove_all(cpu->env_ptr, BP_GDB); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1544 | #endif |
| 1545 | } |
| 1546 | } |
| 1547 | |
| 1548 | static void gdb_set_cpu_pc(GDBState *s, target_ulong pc) |
| 1549 | { |
| 1550 | #if defined(TARGET_I386) |
| 1551 | s->c_cpu->eip = pc; |
David 'Digit' Turner | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 1552 | cpu_synchronize_state(ENV_GET_CPU(s->c_cpu), 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1553 | #elif defined (TARGET_PPC) |
| 1554 | s->c_cpu->nip = pc; |
| 1555 | #elif defined (TARGET_SPARC) |
| 1556 | s->c_cpu->pc = pc; |
| 1557 | s->c_cpu->npc = pc + 4; |
| 1558 | #elif defined (TARGET_ARM) |
| 1559 | s->c_cpu->regs[15] = pc; |
| 1560 | #elif defined (TARGET_SH4) |
| 1561 | s->c_cpu->pc = pc; |
| 1562 | #elif defined (TARGET_MIPS) |
| 1563 | s->c_cpu->active_tc.PC = pc; |
| 1564 | #elif defined (TARGET_MICROBLAZE) |
| 1565 | s->c_cpu->sregs[SR_PC] = pc; |
| 1566 | #elif defined (TARGET_CRIS) |
| 1567 | s->c_cpu->pc = pc; |
| 1568 | #elif defined (TARGET_ALPHA) |
| 1569 | s->c_cpu->pc = pc; |
| 1570 | #endif |
| 1571 | } |
| 1572 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1573 | static inline int gdb_id(CPUState *cpu) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1574 | { |
| 1575 | #if defined(CONFIG_USER_ONLY) && defined(USE_NPTL) |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1576 | return cpu->host_tid; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1577 | #else |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1578 | return cpu->cpu_index + 1; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1579 | #endif |
| 1580 | } |
| 1581 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1582 | static CPUArchState *find_cpu(uint32_t thread_id) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1583 | { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1584 | CPUState *cpu; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1585 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1586 | CPU_FOREACH(cpu) { |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1587 | if (gdb_id(cpu) == thread_id) { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1588 | return cpu->env_ptr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1589 | } |
| 1590 | } |
| 1591 | |
| 1592 | return NULL; |
| 1593 | } |
| 1594 | |
| 1595 | static int gdb_handle_packet(GDBState *s, const char *line_buf) |
| 1596 | { |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1597 | CPUArchState *env; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1598 | const char *p; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1599 | uint32_t thread; |
| 1600 | int ch, reg_size, type, res; |
| 1601 | char buf[MAX_PACKET_LENGTH]; |
| 1602 | uint8_t mem_buf[MAX_PACKET_LENGTH]; |
| 1603 | uint8_t *registers; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1604 | target_ulong addr, len; |
| 1605 | |
| 1606 | #ifdef DEBUG_GDB |
| 1607 | printf("command='%s'\n", line_buf); |
| 1608 | #endif |
| 1609 | p = line_buf; |
| 1610 | ch = *p++; |
| 1611 | switch(ch) { |
| 1612 | case '?': |
| 1613 | /* TODO: Make this return the correct value for user-mode. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1614 | snprintf(buf, sizeof(buf), "T%02xthread:%02x;", GDB_SIGNAL_TRAP, |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1615 | gdb_id(ENV_GET_CPU(s->c_cpu))); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1616 | put_packet(s, buf); |
| 1617 | /* Remove all the breakpoints when this query is issued, |
| 1618 | * because gdb is doing and initial connect and the state |
| 1619 | * should be cleaned up. |
| 1620 | */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1621 | gdb_breakpoint_remove_all(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1622 | break; |
| 1623 | case 'c': |
| 1624 | if (*p != '\0') { |
| 1625 | addr = strtoull(p, (char **)&p, 16); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1626 | gdb_set_cpu_pc(s, addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1627 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1628 | s->signal = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1629 | gdb_continue(s); |
| 1630 | return RS_IDLE; |
| 1631 | case 'C': |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1632 | s->signal = gdb_signal_to_target (strtoul(p, (char **)&p, 16)); |
| 1633 | if (s->signal == -1) |
| 1634 | s->signal = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1635 | gdb_continue(s); |
| 1636 | return RS_IDLE; |
| 1637 | case 'k': |
| 1638 | /* Kill the target */ |
| 1639 | fprintf(stderr, "\nQEMU: Terminated via GDBstub\n"); |
| 1640 | exit(0); |
| 1641 | case 'D': |
| 1642 | /* Detach packet */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1643 | gdb_breakpoint_remove_all(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1644 | gdb_continue(s); |
| 1645 | put_packet(s, "OK"); |
| 1646 | break; |
| 1647 | case 's': |
| 1648 | if (*p != '\0') { |
| 1649 | addr = strtoull(p, (char **)&p, 16); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1650 | gdb_set_cpu_pc(s, addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1651 | } |
David 'Digit' Turner | fed223d | 2014-03-24 17:42:47 +0100 | [diff] [blame] | 1652 | cpu_single_step(ENV_GET_CPU(s->c_cpu), sstep_flags); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1653 | gdb_continue(s); |
| 1654 | return RS_IDLE; |
| 1655 | case 'F': |
| 1656 | { |
| 1657 | target_ulong ret; |
| 1658 | target_ulong err; |
| 1659 | |
| 1660 | ret = strtoull(p, (char **)&p, 16); |
| 1661 | if (*p == ',') { |
| 1662 | p++; |
| 1663 | err = strtoull(p, (char **)&p, 16); |
| 1664 | } else { |
| 1665 | err = 0; |
| 1666 | } |
| 1667 | if (*p == ',') |
| 1668 | p++; |
| 1669 | type = *p; |
| 1670 | if (gdb_current_syscall_cb) |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1671 | gdb_current_syscall_cb(ENV_GET_CPU(s->c_cpu), ret, err); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1672 | if (type == 'C') { |
| 1673 | put_packet(s, "T02"); |
| 1674 | } else { |
| 1675 | gdb_continue(s); |
| 1676 | } |
| 1677 | } |
| 1678 | break; |
| 1679 | case 'g': |
David 'Digit' Turner | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 1680 | cpu_synchronize_state(ENV_GET_CPU(s->g_cpu), 0); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1681 | len = 0; |
| 1682 | for (addr = 0; addr < num_g_regs; addr++) { |
| 1683 | reg_size = gdb_read_register(s->g_cpu, mem_buf + len, addr); |
| 1684 | len += reg_size; |
| 1685 | } |
| 1686 | memtohex(buf, mem_buf, len); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1687 | put_packet(s, buf); |
| 1688 | break; |
| 1689 | case 'G': |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1690 | registers = mem_buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1691 | len = strlen(p) / 2; |
| 1692 | hextomem((uint8_t *)registers, p, len); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1693 | for (addr = 0; addr < num_g_regs && len > 0; addr++) { |
| 1694 | reg_size = gdb_write_register(s->g_cpu, registers, addr); |
| 1695 | len -= reg_size; |
| 1696 | registers += reg_size; |
| 1697 | } |
David 'Digit' Turner | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 1698 | cpu_synchronize_state(ENV_GET_CPU(s->g_cpu), 1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1699 | put_packet(s, "OK"); |
| 1700 | break; |
| 1701 | case 'm': |
| 1702 | addr = strtoull(p, (char **)&p, 16); |
| 1703 | if (*p == ',') |
| 1704 | p++; |
| 1705 | len = strtoull(p, NULL, 16); |
David 'Digit' Turner | aaef275 | 2014-03-25 17:19:27 +0100 | [diff] [blame] | 1706 | if (cpu_memory_rw_debug(ENV_GET_CPU(s->g_cpu), addr, mem_buf, len, 0) != 0) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1707 | put_packet (s, "E14"); |
| 1708 | } else { |
| 1709 | memtohex(buf, mem_buf, len); |
| 1710 | put_packet(s, buf); |
| 1711 | } |
| 1712 | break; |
| 1713 | case 'M': |
| 1714 | addr = strtoull(p, (char **)&p, 16); |
| 1715 | if (*p == ',') |
| 1716 | p++; |
| 1717 | len = strtoull(p, (char **)&p, 16); |
| 1718 | if (*p == ':') |
| 1719 | p++; |
| 1720 | hextomem(mem_buf, p, len); |
David 'Digit' Turner | aaef275 | 2014-03-25 17:19:27 +0100 | [diff] [blame] | 1721 | if (cpu_memory_rw_debug(ENV_GET_CPU(s->g_cpu), addr, mem_buf, len, 1) != 0) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1722 | put_packet(s, "E14"); |
| 1723 | else |
| 1724 | put_packet(s, "OK"); |
| 1725 | break; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1726 | case 'p': |
| 1727 | /* Older gdb are really dumb, and don't use 'g' if 'p' is avaialable. |
| 1728 | This works, but can be very slow. Anything new enough to |
| 1729 | understand XML also knows how to use this properly. */ |
| 1730 | if (!gdb_has_xml) |
| 1731 | goto unknown_command; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1732 | addr = strtoull(p, (char **)&p, 16); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1733 | reg_size = gdb_read_register(s->g_cpu, mem_buf, addr); |
| 1734 | if (reg_size) { |
| 1735 | memtohex(buf, mem_buf, reg_size); |
| 1736 | put_packet(s, buf); |
| 1737 | } else { |
| 1738 | put_packet(s, "E14"); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1739 | } |
| 1740 | break; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1741 | case 'P': |
| 1742 | if (!gdb_has_xml) |
| 1743 | goto unknown_command; |
| 1744 | addr = strtoull(p, (char **)&p, 16); |
| 1745 | if (*p == '=') |
| 1746 | p++; |
| 1747 | reg_size = strlen(p) / 2; |
| 1748 | hextomem(mem_buf, p, reg_size); |
| 1749 | gdb_write_register(s->g_cpu, mem_buf, addr); |
| 1750 | put_packet(s, "OK"); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1751 | break; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1752 | case 'Z': |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1753 | case 'z': |
| 1754 | type = strtoul(p, (char **)&p, 16); |
| 1755 | if (*p == ',') |
| 1756 | p++; |
| 1757 | addr = strtoull(p, (char **)&p, 16); |
| 1758 | if (*p == ',') |
| 1759 | p++; |
| 1760 | len = strtoull(p, (char **)&p, 16); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1761 | if (ch == 'Z') |
| 1762 | res = gdb_breakpoint_insert(addr, len, type); |
| 1763 | else |
| 1764 | res = gdb_breakpoint_remove(addr, len, type); |
| 1765 | if (res >= 0) |
| 1766 | put_packet(s, "OK"); |
| 1767 | else if (res == -ENOSYS) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1768 | put_packet(s, ""); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1769 | else |
| 1770 | put_packet(s, "E22"); |
| 1771 | break; |
| 1772 | case 'H': |
| 1773 | type = *p++; |
| 1774 | thread = strtoull(p, (char **)&p, 16); |
| 1775 | if (thread == -1 || thread == 0) { |
| 1776 | put_packet(s, "OK"); |
| 1777 | break; |
| 1778 | } |
| 1779 | env = find_cpu(thread); |
| 1780 | if (env == NULL) { |
| 1781 | put_packet(s, "E22"); |
| 1782 | break; |
| 1783 | } |
| 1784 | switch (type) { |
| 1785 | case 'c': |
| 1786 | s->c_cpu = env; |
| 1787 | put_packet(s, "OK"); |
| 1788 | break; |
| 1789 | case 'g': |
| 1790 | s->g_cpu = env; |
| 1791 | put_packet(s, "OK"); |
| 1792 | break; |
| 1793 | default: |
| 1794 | put_packet(s, "E22"); |
| 1795 | break; |
| 1796 | } |
| 1797 | break; |
| 1798 | case 'T': |
| 1799 | thread = strtoull(p, (char **)&p, 16); |
| 1800 | env = find_cpu(thread); |
| 1801 | |
| 1802 | if (env != NULL) { |
| 1803 | put_packet(s, "OK"); |
| 1804 | } else { |
| 1805 | put_packet(s, "E22"); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1806 | } |
| 1807 | break; |
| 1808 | case 'q': |
| 1809 | case 'Q': |
| 1810 | /* parse any 'q' packets here */ |
| 1811 | if (!strcmp(p,"qemu.sstepbits")) { |
| 1812 | /* Query Breakpoint bit definitions */ |
| 1813 | snprintf(buf, sizeof(buf), "ENABLE=%x,NOIRQ=%x,NOTIMER=%x", |
| 1814 | SSTEP_ENABLE, |
| 1815 | SSTEP_NOIRQ, |
| 1816 | SSTEP_NOTIMER); |
| 1817 | put_packet(s, buf); |
| 1818 | break; |
| 1819 | } else if (strncmp(p,"qemu.sstep",10) == 0) { |
| 1820 | /* Display or change the sstep_flags */ |
| 1821 | p += 10; |
| 1822 | if (*p != '=') { |
| 1823 | /* Display current setting */ |
| 1824 | snprintf(buf, sizeof(buf), "0x%x", sstep_flags); |
| 1825 | put_packet(s, buf); |
| 1826 | break; |
| 1827 | } |
| 1828 | p++; |
| 1829 | type = strtoul(p, (char **)&p, 16); |
| 1830 | sstep_flags = type; |
| 1831 | put_packet(s, "OK"); |
| 1832 | break; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1833 | } else if (strcmp(p,"C") == 0) { |
| 1834 | /* "Current thread" remains vague in the spec, so always return |
| 1835 | * the first CPU (gdb returns the first thread). */ |
| 1836 | put_packet(s, "QC1"); |
| 1837 | break; |
| 1838 | } else if (strcmp(p,"fThreadInfo") == 0) { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1839 | s->query_cpu = QTAILQ_FIRST(&cpus)->env_ptr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1840 | goto report_cpuinfo; |
| 1841 | } else if (strcmp(p,"sThreadInfo") == 0) { |
| 1842 | report_cpuinfo: |
| 1843 | if (s->query_cpu) { |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1844 | snprintf(buf, sizeof(buf), "m%x", gdb_id(ENV_GET_CPU(s->query_cpu))); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1845 | put_packet(s, buf); |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1846 | s->query_cpu = QTAILQ_NEXT(ENV_GET_CPU(s->query_cpu), node)->env_ptr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1847 | } else |
| 1848 | put_packet(s, "l"); |
| 1849 | break; |
| 1850 | } else if (strncmp(p,"ThreadExtraInfo,", 16) == 0) { |
| 1851 | thread = strtoull(p+16, (char **)&p, 16); |
| 1852 | env = find_cpu(thread); |
| 1853 | if (env != NULL) { |
David 'Digit' Turner | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 1854 | cpu_synchronize_state(ENV_GET_CPU(env), 0); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1855 | len = snprintf((char *)mem_buf, sizeof(mem_buf), |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 1856 | "CPU#%d [%s]", ENV_GET_CPU(env)->cpu_index, |
| 1857 | ENV_GET_CPU(env)->halted ? "halted " : "running"); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1858 | memtohex(buf, mem_buf, len); |
| 1859 | put_packet(s, buf); |
| 1860 | } |
| 1861 | break; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1862 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1863 | #ifdef CONFIG_USER_ONLY |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1864 | else if (strncmp(p, "Offsets", 7) == 0) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1865 | TaskState *ts = s->c_cpu->opaque; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1866 | |
| 1867 | snprintf(buf, sizeof(buf), |
| 1868 | "Text=" TARGET_ABI_FMT_lx ";Data=" TARGET_ABI_FMT_lx |
| 1869 | ";Bss=" TARGET_ABI_FMT_lx, |
| 1870 | ts->info->code_offset, |
| 1871 | ts->info->data_offset, |
| 1872 | ts->info->data_offset); |
| 1873 | put_packet(s, buf); |
| 1874 | break; |
| 1875 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1876 | #else /* !CONFIG_USER_ONLY */ |
| 1877 | else if (strncmp(p, "Rcmd,", 5) == 0) { |
| 1878 | int len = strlen(p + 5); |
| 1879 | |
| 1880 | if ((len % 2) != 0) { |
| 1881 | put_packet(s, "E01"); |
| 1882 | break; |
| 1883 | } |
| 1884 | hextomem(mem_buf, p + 5, len); |
| 1885 | len = len / 2; |
| 1886 | mem_buf[len++] = 0; |
| 1887 | qemu_chr_read(s->mon_chr, mem_buf, len); |
| 1888 | put_packet(s, "OK"); |
| 1889 | break; |
| 1890 | } |
| 1891 | #endif /* !CONFIG_USER_ONLY */ |
| 1892 | if (strncmp(p, "Supported", 9) == 0) { |
| 1893 | snprintf(buf, sizeof(buf), "PacketSize=%x", MAX_PACKET_LENGTH); |
| 1894 | #ifdef GDB_CORE_XML |
| 1895 | pstrcat(buf, sizeof(buf), ";qXfer:features:read+"); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1896 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1897 | put_packet(s, buf); |
| 1898 | break; |
| 1899 | } |
| 1900 | #ifdef GDB_CORE_XML |
| 1901 | if (strncmp(p, "Xfer:features:read:", 19) == 0) { |
| 1902 | const char *xml; |
| 1903 | target_ulong total_len; |
| 1904 | |
| 1905 | gdb_has_xml = 1; |
| 1906 | p += 19; |
| 1907 | xml = get_feature_xml(p, &p); |
| 1908 | if (!xml) { |
| 1909 | snprintf(buf, sizeof(buf), "E00"); |
| 1910 | put_packet(s, buf); |
| 1911 | break; |
| 1912 | } |
| 1913 | |
| 1914 | if (*p == ':') |
| 1915 | p++; |
| 1916 | addr = strtoul(p, (char **)&p, 16); |
| 1917 | if (*p == ',') |
| 1918 | p++; |
| 1919 | len = strtoul(p, (char **)&p, 16); |
| 1920 | |
| 1921 | total_len = strlen(xml); |
| 1922 | if (addr > total_len) { |
| 1923 | snprintf(buf, sizeof(buf), "E00"); |
| 1924 | put_packet(s, buf); |
| 1925 | break; |
| 1926 | } |
| 1927 | if (len > (MAX_PACKET_LENGTH - 5) / 2) |
| 1928 | len = (MAX_PACKET_LENGTH - 5) / 2; |
| 1929 | if (len < total_len - addr) { |
| 1930 | buf[0] = 'm'; |
| 1931 | len = memtox(buf + 1, xml + addr, len); |
| 1932 | } else { |
| 1933 | buf[0] = 'l'; |
| 1934 | len = memtox(buf + 1, xml + addr, total_len - addr); |
| 1935 | } |
| 1936 | put_packet_binary(s, buf, len + 1); |
| 1937 | break; |
| 1938 | } |
| 1939 | #endif |
| 1940 | /* Unrecognised 'q' command. */ |
| 1941 | goto unknown_command; |
| 1942 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1943 | default: |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1944 | unknown_command: |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1945 | /* put empty packet */ |
| 1946 | buf[0] = '\0'; |
| 1947 | put_packet(s, buf); |
| 1948 | break; |
| 1949 | } |
| 1950 | return RS_IDLE; |
| 1951 | } |
| 1952 | |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1953 | void gdb_set_stop_cpu(CPUState *cpu) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1954 | { |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1955 | gdbserver_state->c_cpu = cpu->env_ptr; |
| 1956 | gdbserver_state->g_cpu = cpu->env_ptr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1957 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1958 | |
| 1959 | #ifndef CONFIG_USER_ONLY |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1960 | static void gdb_vm_state_change(void *opaque, int running, int reason) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1961 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1962 | GDBState *s = gdbserver_state; |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1963 | CPUArchState *env = s->c_cpu; |
| 1964 | CPUState *cpu = ENV_GET_CPU(env); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1965 | char buf[256]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1966 | const char *type; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1967 | int ret; |
| 1968 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1969 | if (running || (reason != EXCP_DEBUG && reason != EXCP_INTERRUPT) || |
| 1970 | s->state == RS_INACTIVE || s->state == RS_SYSCALL) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1971 | return; |
| 1972 | |
| 1973 | /* disable single step if it was enable */ |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1974 | cpu_single_step(cpu, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1975 | |
| 1976 | if (reason == EXCP_DEBUG) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1977 | if (env->watchpoint_hit) { |
| 1978 | switch (env->watchpoint_hit->flags & BP_MEM_ACCESS) { |
| 1979 | case BP_MEM_READ: |
| 1980 | type = "r"; |
| 1981 | break; |
| 1982 | case BP_MEM_ACCESS: |
| 1983 | type = "a"; |
| 1984 | break; |
| 1985 | default: |
| 1986 | type = ""; |
| 1987 | break; |
| 1988 | } |
| 1989 | snprintf(buf, sizeof(buf), |
| 1990 | "T%02xthread:%02x;%swatch:" TARGET_FMT_lx ";", |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 1991 | GDB_SIGNAL_TRAP, gdb_id(cpu), type, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1992 | env->watchpoint_hit->vaddr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1993 | put_packet(s, buf); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1994 | env->watchpoint_hit = NULL; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1995 | return; |
| 1996 | } |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1997 | tb_flush(env); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1998 | ret = GDB_SIGNAL_TRAP; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1999 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2000 | ret = GDB_SIGNAL_INT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2001 | } |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 2002 | snprintf(buf, sizeof(buf), "T%02xthread:%02x;", ret, gdb_id(cpu)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2003 | put_packet(s, buf); |
| 2004 | } |
| 2005 | #endif |
| 2006 | |
| 2007 | /* Send a gdb syscall request. |
| 2008 | This accepts limited printf-style format specifiers, specifically: |
| 2009 | %x - target_ulong argument printed in hex. |
| 2010 | %lx - 64-bit argument printed in hex. |
| 2011 | %s - string pointer (target_ulong) and length (int) pair. */ |
| 2012 | void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...) |
| 2013 | { |
| 2014 | va_list va; |
| 2015 | char buf[256]; |
| 2016 | char *p; |
| 2017 | target_ulong addr; |
| 2018 | uint64_t i64; |
| 2019 | GDBState *s; |
| 2020 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2021 | s = gdbserver_state; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2022 | if (!s) |
| 2023 | return; |
| 2024 | gdb_current_syscall_cb = cb; |
| 2025 | s->state = RS_SYSCALL; |
| 2026 | #ifndef CONFIG_USER_ONLY |
| 2027 | vm_stop(EXCP_DEBUG); |
| 2028 | #endif |
| 2029 | s->state = RS_IDLE; |
| 2030 | va_start(va, fmt); |
| 2031 | p = buf; |
| 2032 | *(p++) = 'F'; |
| 2033 | while (*fmt) { |
| 2034 | if (*fmt == '%') { |
| 2035 | fmt++; |
| 2036 | switch (*fmt++) { |
| 2037 | case 'x': |
| 2038 | addr = va_arg(va, target_ulong); |
| 2039 | p += snprintf(p, &buf[sizeof(buf)] - p, TARGET_FMT_lx, addr); |
| 2040 | break; |
| 2041 | case 'l': |
| 2042 | if (*(fmt++) != 'x') |
| 2043 | goto bad_format; |
| 2044 | i64 = va_arg(va, uint64_t); |
| 2045 | p += snprintf(p, &buf[sizeof(buf)] - p, "%" PRIx64, i64); |
| 2046 | break; |
| 2047 | case 's': |
| 2048 | addr = va_arg(va, target_ulong); |
| 2049 | p += snprintf(p, &buf[sizeof(buf)] - p, TARGET_FMT_lx "/%x", |
| 2050 | addr, va_arg(va, int)); |
| 2051 | break; |
| 2052 | default: |
| 2053 | bad_format: |
| 2054 | fprintf(stderr, "gdbstub: Bad syscall format string '%s'\n", |
| 2055 | fmt - 1); |
| 2056 | break; |
| 2057 | } |
| 2058 | } else { |
| 2059 | *(p++) = *(fmt++); |
| 2060 | } |
| 2061 | } |
| 2062 | *p = 0; |
| 2063 | va_end(va); |
| 2064 | put_packet(s, buf); |
| 2065 | #ifdef CONFIG_USER_ONLY |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2066 | gdb_handlesig(s->c_cpu, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2067 | #else |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 2068 | cpu_exit(ENV_GET_CPU(s->c_cpu)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2069 | #endif |
| 2070 | } |
| 2071 | |
| 2072 | static void gdb_read_byte(GDBState *s, int ch) |
| 2073 | { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2074 | int i, csum; |
| 2075 | uint8_t reply; |
| 2076 | |
| 2077 | #ifndef CONFIG_USER_ONLY |
| 2078 | if (s->last_packet_len) { |
| 2079 | /* Waiting for a response to the last packet. If we see the start |
| 2080 | of a new command then abandon the previous response. */ |
| 2081 | if (ch == '-') { |
| 2082 | #ifdef DEBUG_GDB |
| 2083 | printf("Got NACK, retransmitting\n"); |
| 2084 | #endif |
| 2085 | put_buffer(s, (uint8_t *)s->last_packet, s->last_packet_len); |
| 2086 | } |
| 2087 | #ifdef DEBUG_GDB |
| 2088 | else if (ch == '+') |
| 2089 | printf("Got ACK\n"); |
| 2090 | else |
| 2091 | printf("Got '%c' when expecting ACK/NACK\n", ch); |
| 2092 | #endif |
| 2093 | if (ch == '+' || ch == '$') |
| 2094 | s->last_packet_len = 0; |
| 2095 | if (ch != '$') |
| 2096 | return; |
| 2097 | } |
| 2098 | if (vm_running) { |
| 2099 | /* when the CPU is running, we cannot do anything except stop |
| 2100 | it when receiving a char */ |
| 2101 | vm_stop(EXCP_INTERRUPT); |
| 2102 | } else |
| 2103 | #endif |
| 2104 | { |
| 2105 | switch(s->state) { |
| 2106 | case RS_IDLE: |
| 2107 | if (ch == '$') { |
| 2108 | s->line_buf_index = 0; |
| 2109 | s->state = RS_GETLINE; |
| 2110 | } |
| 2111 | break; |
| 2112 | case RS_GETLINE: |
| 2113 | if (ch == '#') { |
| 2114 | s->state = RS_CHKSUM1; |
| 2115 | } else if (s->line_buf_index >= sizeof(s->line_buf) - 1) { |
| 2116 | s->state = RS_IDLE; |
| 2117 | } else { |
| 2118 | s->line_buf[s->line_buf_index++] = ch; |
| 2119 | } |
| 2120 | break; |
| 2121 | case RS_CHKSUM1: |
| 2122 | s->line_buf[s->line_buf_index] = '\0'; |
| 2123 | s->line_csum = fromhex(ch) << 4; |
| 2124 | s->state = RS_CHKSUM2; |
| 2125 | break; |
| 2126 | case RS_CHKSUM2: |
| 2127 | s->line_csum |= fromhex(ch); |
| 2128 | csum = 0; |
| 2129 | for(i = 0; i < s->line_buf_index; i++) { |
| 2130 | csum += s->line_buf[i]; |
| 2131 | } |
| 2132 | if (s->line_csum != (csum & 0xff)) { |
| 2133 | reply = '-'; |
| 2134 | put_buffer(s, &reply, 1); |
| 2135 | s->state = RS_IDLE; |
| 2136 | } else { |
| 2137 | reply = '+'; |
| 2138 | put_buffer(s, &reply, 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2139 | s->state = gdb_handle_packet(s, s->line_buf); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2140 | } |
| 2141 | break; |
| 2142 | default: |
| 2143 | abort(); |
| 2144 | } |
| 2145 | } |
| 2146 | } |
| 2147 | |
| 2148 | #ifdef CONFIG_USER_ONLY |
| 2149 | int |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2150 | gdb_queuesig (void) |
| 2151 | { |
| 2152 | GDBState *s; |
| 2153 | |
| 2154 | s = gdbserver_state; |
| 2155 | |
| 2156 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2157 | return 0; |
| 2158 | else |
| 2159 | return 1; |
| 2160 | } |
| 2161 | |
| 2162 | int |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 2163 | gdb_handlesig (CPUState *cpu, int sig) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2164 | { |
| 2165 | GDBState *s; |
| 2166 | char buf[256]; |
| 2167 | int n; |
| 2168 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2169 | s = gdbserver_state; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2170 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2171 | return sig; |
| 2172 | |
| 2173 | /* disable single step if it was enabled */ |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 2174 | cpu_single_step(cpu, 0); |
| 2175 | tb_flush(cpu->env_ptr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2176 | |
| 2177 | if (sig != 0) |
| 2178 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2179 | snprintf(buf, sizeof(buf), "S%02x", target_signal_to_gdb (sig)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2180 | put_packet(s, buf); |
| 2181 | } |
David 'Digit' Turner | c005246 | 2014-02-25 18:39:29 +0100 | [diff] [blame] | 2182 | /* put_packet() might have detected that the peer terminated the |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2183 | connection. */ |
| 2184 | if (s->fd < 0) |
| 2185 | return sig; |
| 2186 | |
| 2187 | sig = 0; |
| 2188 | s->state = RS_IDLE; |
| 2189 | s->running_state = 0; |
| 2190 | while (s->running_state == 0) { |
| 2191 | n = read (s->fd, buf, 256); |
| 2192 | if (n > 0) |
| 2193 | { |
| 2194 | int i; |
| 2195 | |
| 2196 | for (i = 0; i < n; i++) |
| 2197 | gdb_read_byte (s, buf[i]); |
| 2198 | } |
| 2199 | else if (n == 0 || errno != EAGAIN) |
| 2200 | { |
| 2201 | /* XXX: Connection closed. Should probably wait for annother |
| 2202 | connection before continuing. */ |
| 2203 | return sig; |
| 2204 | } |
| 2205 | } |
| 2206 | sig = s->signal; |
| 2207 | s->signal = 0; |
| 2208 | return sig; |
| 2209 | } |
| 2210 | |
| 2211 | /* Tell the remote gdb that the process has exited. */ |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 2212 | void gdb_exit(CPUState *cpu, int code) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2213 | { |
| 2214 | GDBState *s; |
| 2215 | char buf[4]; |
| 2216 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2217 | s = gdbserver_state; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2218 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2219 | return; |
| 2220 | |
| 2221 | snprintf(buf, sizeof(buf), "W%02x", code); |
| 2222 | put_packet(s, buf); |
| 2223 | } |
| 2224 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2225 | /* Tell the remote gdb that the process has exited due to SIG. */ |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 2226 | void gdb_signalled(CPUState *cpu, int sig) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2227 | { |
| 2228 | GDBState *s; |
| 2229 | char buf[4]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2230 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2231 | s = gdbserver_state; |
| 2232 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2233 | return; |
| 2234 | |
| 2235 | snprintf(buf, sizeof(buf), "X%02x", target_signal_to_gdb (sig)); |
| 2236 | put_packet(s, buf); |
| 2237 | } |
| 2238 | |
| 2239 | static void gdb_accept(void) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2240 | { |
| 2241 | GDBState *s; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2242 | struct sockaddr_in sockaddr; |
| 2243 | socklen_t len; |
| 2244 | int val, fd; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2245 | |
| 2246 | for(;;) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2247 | len = sizeof(sockaddr); |
| 2248 | fd = accept(gdbserver_fd, (struct sockaddr *)&sockaddr, &len); |
| 2249 | if (fd < 0 && errno != EINTR) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2250 | perror("accept"); |
| 2251 | return; |
| 2252 | } else if (fd >= 0) { |
| 2253 | break; |
| 2254 | } |
| 2255 | } |
| 2256 | |
| 2257 | /* set short latency */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2258 | val = 1; |
David 'Digit' Turner | 6731cf5 | 2014-01-16 18:15:41 +0100 | [diff] [blame] | 2259 | qemu_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2260 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2261 | s = g_malloc0(sizeof(GDBState)); |
David 'Digit' Turner | 4ab1225 | 2014-03-24 11:29:53 +0100 | [diff] [blame] | 2262 | s->c_cpu = QTAILQ_FIRST(&cpus); |
| 2263 | s->g_cpu = QTAILQ_FIRST(&cpus); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2264 | s->fd = fd; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2265 | gdb_has_xml = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2266 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2267 | gdbserver_state = s; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2268 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2269 | fcntl(fd, F_SETFL, O_NONBLOCK); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2270 | } |
| 2271 | |
| 2272 | static int gdbserver_open(int port) |
| 2273 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2274 | struct sockaddr_in sockaddr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2275 | int fd, val, ret; |
| 2276 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2277 | fd = socket(PF_INET, SOCK_STREAM, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2278 | if (fd < 0) { |
| 2279 | perror("socket"); |
| 2280 | return -1; |
| 2281 | } |
| 2282 | |
| 2283 | /* allow fast reuse */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2284 | val = 1; |
David 'Digit' Turner | 6731cf5 | 2014-01-16 18:15:41 +0100 | [diff] [blame] | 2285 | qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&val, sizeof(val)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2286 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2287 | sockaddr.sin_family = AF_INET; |
| 2288 | sockaddr.sin_port = htons(port); |
| 2289 | sockaddr.sin_addr.s_addr = 0; |
| 2290 | ret = bind(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2291 | if (ret < 0) { |
| 2292 | perror("bind"); |
| 2293 | return -1; |
| 2294 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2295 | ret = listen(fd, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2296 | if (ret < 0) { |
| 2297 | perror("listen"); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2298 | return -1; |
| 2299 | } |
| 2300 | return fd; |
| 2301 | } |
| 2302 | |
| 2303 | int gdbserver_start(int port) |
| 2304 | { |
| 2305 | gdbserver_fd = gdbserver_open(port); |
| 2306 | if (gdbserver_fd < 0) |
| 2307 | return -1; |
| 2308 | /* accept connections */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2309 | gdb_accept(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2310 | return 0; |
| 2311 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2312 | |
| 2313 | /* Disable gdb stub for child processes. */ |
David 'Digit' Turner | 0b1a845 | 2014-03-25 17:37:52 +0100 | [diff] [blame] | 2314 | void gdbserver_fork(CPUArchState *env) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2315 | { |
| 2316 | GDBState *s = gdbserver_state; |
| 2317 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2318 | return; |
| 2319 | close(s->fd); |
| 2320 | s->fd = -1; |
| 2321 | cpu_breakpoint_remove_all(env, BP_GDB); |
| 2322 | cpu_watchpoint_remove_all(env, BP_GDB); |
| 2323 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2324 | #else |
| 2325 | static int gdb_chr_can_receive(void *opaque) |
| 2326 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2327 | /* We can handle an arbitrarily large amount of data. |
| 2328 | Pick the maximum packet size, which is as good as anything. */ |
| 2329 | return MAX_PACKET_LENGTH; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2330 | } |
| 2331 | |
| 2332 | static void gdb_chr_receive(void *opaque, const uint8_t *buf, int size) |
| 2333 | { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2334 | int i; |
| 2335 | |
| 2336 | for (i = 0; i < size; i++) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2337 | gdb_read_byte(gdbserver_state, buf[i]); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2338 | } |
| 2339 | } |
| 2340 | |
| 2341 | static void gdb_chr_event(void *opaque, int event) |
| 2342 | { |
| 2343 | switch (event) { |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2344 | case CHR_EVENT_OPENED: |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2345 | vm_stop(EXCP_INTERRUPT); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2346 | gdb_has_xml = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2347 | break; |
| 2348 | default: |
| 2349 | break; |
| 2350 | } |
| 2351 | } |
| 2352 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2353 | static void gdb_monitor_output(GDBState *s, const char *msg, int len) |
| 2354 | { |
| 2355 | char buf[MAX_PACKET_LENGTH]; |
| 2356 | |
| 2357 | buf[0] = 'O'; |
| 2358 | if (len > (MAX_PACKET_LENGTH/2) - 1) |
| 2359 | len = (MAX_PACKET_LENGTH/2) - 1; |
| 2360 | memtohex(buf + 1, (uint8_t *)msg, len); |
| 2361 | put_packet(s, buf); |
| 2362 | } |
| 2363 | |
| 2364 | static int gdb_monitor_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2365 | { |
| 2366 | const char *p = (const char *)buf; |
| 2367 | int max_sz; |
| 2368 | |
| 2369 | max_sz = (sizeof(gdbserver_state->last_packet) - 2) / 2; |
| 2370 | for (;;) { |
| 2371 | if (len <= max_sz) { |
| 2372 | gdb_monitor_output(gdbserver_state, p, len); |
| 2373 | break; |
| 2374 | } |
| 2375 | gdb_monitor_output(gdbserver_state, p, max_sz); |
| 2376 | p += max_sz; |
| 2377 | len -= max_sz; |
| 2378 | } |
| 2379 | return len; |
| 2380 | } |
| 2381 | |
| 2382 | #ifndef _WIN32 |
| 2383 | static void gdb_sigterm_handler(int signal) |
| 2384 | { |
| 2385 | if (vm_running) |
| 2386 | vm_stop(EXCP_INTERRUPT); |
| 2387 | } |
| 2388 | #endif |
| 2389 | |
| 2390 | int gdbserver_start(const char *device) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2391 | { |
| 2392 | GDBState *s; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2393 | char gdbstub_device_name[128]; |
| 2394 | CharDriverState *chr = NULL; |
| 2395 | CharDriverState *mon_chr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2396 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2397 | if (!device) |
| 2398 | return -1; |
| 2399 | if (strcmp(device, "none") != 0) { |
| 2400 | if (strstart(device, "tcp:", NULL)) { |
| 2401 | /* enforce required TCP attributes */ |
| 2402 | snprintf(gdbstub_device_name, sizeof(gdbstub_device_name), |
| 2403 | "%s,nowait,nodelay,server", device); |
| 2404 | device = gdbstub_device_name; |
| 2405 | } |
| 2406 | #ifndef _WIN32 |
| 2407 | else if (strcmp(device, "stdio") == 0) { |
| 2408 | struct sigaction act; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2409 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2410 | memset(&act, 0, sizeof(act)); |
| 2411 | act.sa_handler = gdb_sigterm_handler; |
| 2412 | sigaction(SIGINT, &act, NULL); |
| 2413 | } |
| 2414 | #endif |
| 2415 | chr = qemu_chr_open("gdb", device, NULL); |
| 2416 | if (!chr) |
| 2417 | return -1; |
| 2418 | |
| 2419 | qemu_chr_add_handlers(chr, gdb_chr_can_receive, gdb_chr_receive, |
| 2420 | gdb_chr_event, NULL); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2421 | } |
| 2422 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2423 | s = gdbserver_state; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2424 | if (!s) { |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2425 | s = g_malloc0(sizeof(GDBState)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2426 | gdbserver_state = s; |
| 2427 | |
| 2428 | qemu_add_vm_change_state_handler(gdb_vm_state_change, NULL); |
| 2429 | |
| 2430 | /* Initialize a monitor terminal for gdb */ |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2431 | mon_chr = g_malloc0(sizeof(*mon_chr)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2432 | mon_chr->chr_write = gdb_monitor_write; |
| 2433 | monitor_init(mon_chr, 0); |
| 2434 | } else { |
| 2435 | if (s->chr) |
| 2436 | qemu_chr_close(s->chr); |
| 2437 | mon_chr = s->mon_chr; |
| 2438 | memset(s, 0, sizeof(GDBState)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2439 | } |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 2440 | s->c_cpu = QTAILQ_FIRST(&cpus)->env_ptr; |
| 2441 | s->g_cpu = s->c_cpu; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2442 | s->chr = chr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2443 | s->state = chr ? RS_IDLE : RS_INACTIVE; |
| 2444 | s->mon_chr = mon_chr; |
| 2445 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2446 | return 0; |
| 2447 | } |
| 2448 | #endif |