bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 1 | /* |
| 2 | * gdb server stub |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3 | * |
bellard | 3475187 | 2005-07-02 14:31:34 +0000 | [diff] [blame] | 4 | * Copyright (c) 2003-2005 Fabrice Bellard |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 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 |
| 17 | * License along with this library; if not, write to the Free Software |
aurel32 | fad6cb1 | 2009-01-04 22:05:52 +0000 | [diff] [blame] | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 19 | */ |
pbrook | 978efd6 | 2006-06-17 18:30:42 +0000 | [diff] [blame] | 20 | #include "config.h" |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 21 | #include "qemu-common.h" |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 22 | #ifdef CONFIG_USER_ONLY |
| 23 | #include <stdlib.h> |
| 24 | #include <stdio.h> |
| 25 | #include <stdarg.h> |
| 26 | #include <string.h> |
| 27 | #include <errno.h> |
| 28 | #include <unistd.h> |
pbrook | 978efd6 | 2006-06-17 18:30:42 +0000 | [diff] [blame] | 29 | #include <fcntl.h> |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 30 | |
| 31 | #include "qemu.h" |
| 32 | #else |
aliguori | 8a34a0f | 2009-03-05 23:01:55 +0000 | [diff] [blame] | 33 | #include "monitor.h" |
pbrook | 87ecb68 | 2007-11-17 17:14:51 +0000 | [diff] [blame] | 34 | #include "qemu-char.h" |
| 35 | #include "sysemu.h" |
| 36 | #include "gdbstub.h" |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 37 | #endif |
bellard | 67b915a | 2004-03-31 23:37:16 +0000 | [diff] [blame] | 38 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 39 | #define MAX_PACKET_LENGTH 4096 |
| 40 | |
bellard | 8f447cc | 2006-06-14 15:21:14 +0000 | [diff] [blame] | 41 | #include "qemu_socket.h" |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 42 | #include "kvm.h" |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 43 | |
| 44 | |
| 45 | enum { |
| 46 | GDB_SIGNAL_0 = 0, |
| 47 | GDB_SIGNAL_INT = 2, |
| 48 | GDB_SIGNAL_TRAP = 5, |
| 49 | GDB_SIGNAL_UNKNOWN = 143 |
| 50 | }; |
| 51 | |
| 52 | #ifdef CONFIG_USER_ONLY |
| 53 | |
| 54 | /* Map target signal numbers to GDB protocol signal numbers and vice |
| 55 | * versa. For user emulation's currently supported systems, we can |
| 56 | * assume most signals are defined. |
| 57 | */ |
| 58 | |
| 59 | static int gdb_signal_table[] = { |
| 60 | 0, |
| 61 | TARGET_SIGHUP, |
| 62 | TARGET_SIGINT, |
| 63 | TARGET_SIGQUIT, |
| 64 | TARGET_SIGILL, |
| 65 | TARGET_SIGTRAP, |
| 66 | TARGET_SIGABRT, |
| 67 | -1, /* SIGEMT */ |
| 68 | TARGET_SIGFPE, |
| 69 | TARGET_SIGKILL, |
| 70 | TARGET_SIGBUS, |
| 71 | TARGET_SIGSEGV, |
| 72 | TARGET_SIGSYS, |
| 73 | TARGET_SIGPIPE, |
| 74 | TARGET_SIGALRM, |
| 75 | TARGET_SIGTERM, |
| 76 | TARGET_SIGURG, |
| 77 | TARGET_SIGSTOP, |
| 78 | TARGET_SIGTSTP, |
| 79 | TARGET_SIGCONT, |
| 80 | TARGET_SIGCHLD, |
| 81 | TARGET_SIGTTIN, |
| 82 | TARGET_SIGTTOU, |
| 83 | TARGET_SIGIO, |
| 84 | TARGET_SIGXCPU, |
| 85 | TARGET_SIGXFSZ, |
| 86 | TARGET_SIGVTALRM, |
| 87 | TARGET_SIGPROF, |
| 88 | TARGET_SIGWINCH, |
| 89 | -1, /* SIGLOST */ |
| 90 | TARGET_SIGUSR1, |
| 91 | TARGET_SIGUSR2, |
blueswir1 | c72d5bf | 2009-01-15 17:27:45 +0000 | [diff] [blame] | 92 | #ifdef TARGET_SIGPWR |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 93 | TARGET_SIGPWR, |
blueswir1 | c72d5bf | 2009-01-15 17:27:45 +0000 | [diff] [blame] | 94 | #else |
| 95 | -1, |
| 96 | #endif |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 97 | -1, /* SIGPOLL */ |
| 98 | -1, |
| 99 | -1, |
| 100 | -1, |
| 101 | -1, |
| 102 | -1, |
| 103 | -1, |
| 104 | -1, |
| 105 | -1, |
| 106 | -1, |
| 107 | -1, |
| 108 | -1, |
blueswir1 | c72d5bf | 2009-01-15 17:27:45 +0000 | [diff] [blame] | 109 | #ifdef __SIGRTMIN |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 110 | __SIGRTMIN + 1, |
| 111 | __SIGRTMIN + 2, |
| 112 | __SIGRTMIN + 3, |
| 113 | __SIGRTMIN + 4, |
| 114 | __SIGRTMIN + 5, |
| 115 | __SIGRTMIN + 6, |
| 116 | __SIGRTMIN + 7, |
| 117 | __SIGRTMIN + 8, |
| 118 | __SIGRTMIN + 9, |
| 119 | __SIGRTMIN + 10, |
| 120 | __SIGRTMIN + 11, |
| 121 | __SIGRTMIN + 12, |
| 122 | __SIGRTMIN + 13, |
| 123 | __SIGRTMIN + 14, |
| 124 | __SIGRTMIN + 15, |
| 125 | __SIGRTMIN + 16, |
| 126 | __SIGRTMIN + 17, |
| 127 | __SIGRTMIN + 18, |
| 128 | __SIGRTMIN + 19, |
| 129 | __SIGRTMIN + 20, |
| 130 | __SIGRTMIN + 21, |
| 131 | __SIGRTMIN + 22, |
| 132 | __SIGRTMIN + 23, |
| 133 | __SIGRTMIN + 24, |
| 134 | __SIGRTMIN + 25, |
| 135 | __SIGRTMIN + 26, |
| 136 | __SIGRTMIN + 27, |
| 137 | __SIGRTMIN + 28, |
| 138 | __SIGRTMIN + 29, |
| 139 | __SIGRTMIN + 30, |
| 140 | __SIGRTMIN + 31, |
| 141 | -1, /* SIGCANCEL */ |
| 142 | __SIGRTMIN, |
| 143 | __SIGRTMIN + 32, |
| 144 | __SIGRTMIN + 33, |
| 145 | __SIGRTMIN + 34, |
| 146 | __SIGRTMIN + 35, |
| 147 | __SIGRTMIN + 36, |
| 148 | __SIGRTMIN + 37, |
| 149 | __SIGRTMIN + 38, |
| 150 | __SIGRTMIN + 39, |
| 151 | __SIGRTMIN + 40, |
| 152 | __SIGRTMIN + 41, |
| 153 | __SIGRTMIN + 42, |
| 154 | __SIGRTMIN + 43, |
| 155 | __SIGRTMIN + 44, |
| 156 | __SIGRTMIN + 45, |
| 157 | __SIGRTMIN + 46, |
| 158 | __SIGRTMIN + 47, |
| 159 | __SIGRTMIN + 48, |
| 160 | __SIGRTMIN + 49, |
| 161 | __SIGRTMIN + 50, |
| 162 | __SIGRTMIN + 51, |
| 163 | __SIGRTMIN + 52, |
| 164 | __SIGRTMIN + 53, |
| 165 | __SIGRTMIN + 54, |
| 166 | __SIGRTMIN + 55, |
| 167 | __SIGRTMIN + 56, |
| 168 | __SIGRTMIN + 57, |
| 169 | __SIGRTMIN + 58, |
| 170 | __SIGRTMIN + 59, |
| 171 | __SIGRTMIN + 60, |
| 172 | __SIGRTMIN + 61, |
| 173 | __SIGRTMIN + 62, |
| 174 | __SIGRTMIN + 63, |
| 175 | __SIGRTMIN + 64, |
| 176 | __SIGRTMIN + 65, |
| 177 | __SIGRTMIN + 66, |
| 178 | __SIGRTMIN + 67, |
| 179 | __SIGRTMIN + 68, |
| 180 | __SIGRTMIN + 69, |
| 181 | __SIGRTMIN + 70, |
| 182 | __SIGRTMIN + 71, |
| 183 | __SIGRTMIN + 72, |
| 184 | __SIGRTMIN + 73, |
| 185 | __SIGRTMIN + 74, |
| 186 | __SIGRTMIN + 75, |
| 187 | __SIGRTMIN + 76, |
| 188 | __SIGRTMIN + 77, |
| 189 | __SIGRTMIN + 78, |
| 190 | __SIGRTMIN + 79, |
| 191 | __SIGRTMIN + 80, |
| 192 | __SIGRTMIN + 81, |
| 193 | __SIGRTMIN + 82, |
| 194 | __SIGRTMIN + 83, |
| 195 | __SIGRTMIN + 84, |
| 196 | __SIGRTMIN + 85, |
| 197 | __SIGRTMIN + 86, |
| 198 | __SIGRTMIN + 87, |
| 199 | __SIGRTMIN + 88, |
| 200 | __SIGRTMIN + 89, |
| 201 | __SIGRTMIN + 90, |
| 202 | __SIGRTMIN + 91, |
| 203 | __SIGRTMIN + 92, |
| 204 | __SIGRTMIN + 93, |
| 205 | __SIGRTMIN + 94, |
| 206 | __SIGRTMIN + 95, |
| 207 | -1, /* SIGINFO */ |
| 208 | -1, /* UNKNOWN */ |
| 209 | -1, /* DEFAULT */ |
| 210 | -1, |
| 211 | -1, |
| 212 | -1, |
| 213 | -1, |
| 214 | -1, |
| 215 | -1 |
blueswir1 | c72d5bf | 2009-01-15 17:27:45 +0000 | [diff] [blame] | 216 | #endif |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 217 | }; |
bellard | 8f447cc | 2006-06-14 15:21:14 +0000 | [diff] [blame] | 218 | #else |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 219 | /* In system mode we only need SIGINT and SIGTRAP; other signals |
| 220 | are not yet supported. */ |
| 221 | |
| 222 | enum { |
| 223 | TARGET_SIGINT = 2, |
| 224 | TARGET_SIGTRAP = 5 |
| 225 | }; |
| 226 | |
| 227 | static int gdb_signal_table[] = { |
| 228 | -1, |
| 229 | -1, |
| 230 | TARGET_SIGINT, |
| 231 | -1, |
| 232 | -1, |
| 233 | TARGET_SIGTRAP |
| 234 | }; |
bellard | 8f447cc | 2006-06-14 15:21:14 +0000 | [diff] [blame] | 235 | #endif |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 236 | |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 237 | #ifdef CONFIG_USER_ONLY |
| 238 | static int target_signal_to_gdb (int sig) |
| 239 | { |
| 240 | int i; |
| 241 | for (i = 0; i < ARRAY_SIZE (gdb_signal_table); i++) |
| 242 | if (gdb_signal_table[i] == sig) |
| 243 | return i; |
| 244 | return GDB_SIGNAL_UNKNOWN; |
| 245 | } |
| 246 | #endif |
| 247 | |
| 248 | static int gdb_signal_to_target (int sig) |
| 249 | { |
| 250 | if (sig < ARRAY_SIZE (gdb_signal_table)) |
| 251 | return gdb_signal_table[sig]; |
| 252 | else |
| 253 | return -1; |
| 254 | } |
| 255 | |
bellard | 4abe615 | 2003-07-26 18:01:58 +0000 | [diff] [blame] | 256 | //#define DEBUG_GDB |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 257 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 258 | typedef struct GDBRegisterState { |
| 259 | int base_reg; |
| 260 | int num_regs; |
| 261 | gdb_reg_cb get_reg; |
| 262 | gdb_reg_cb set_reg; |
| 263 | const char *xml; |
| 264 | struct GDBRegisterState *next; |
| 265 | } GDBRegisterState; |
| 266 | |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 267 | enum RSState { |
aliguori | 36556b2 | 2009-03-28 18:05:53 +0000 | [diff] [blame] | 268 | RS_INACTIVE, |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 269 | RS_IDLE, |
| 270 | RS_GETLINE, |
| 271 | RS_CHKSUM1, |
| 272 | RS_CHKSUM2, |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 273 | RS_SYSCALL, |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 274 | }; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 275 | typedef struct GDBState { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 276 | CPUState *c_cpu; /* current CPU for step/continue ops */ |
| 277 | CPUState *g_cpu; /* current CPU for other ops */ |
| 278 | CPUState *query_cpu; /* for q{f|s}ThreadInfo */ |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 279 | enum RSState state; /* parsing state */ |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 280 | char line_buf[MAX_PACKET_LENGTH]; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 281 | int line_buf_index; |
| 282 | int line_csum; |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 283 | uint8_t last_packet[MAX_PACKET_LENGTH + 4]; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 284 | int last_packet_len; |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 285 | int signal; |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 286 | #ifdef CONFIG_USER_ONLY |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 287 | int fd; |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 288 | int running_state; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 289 | #else |
| 290 | CharDriverState *chr; |
aliguori | 8a34a0f | 2009-03-05 23:01:55 +0000 | [diff] [blame] | 291 | CharDriverState *mon_chr; |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 292 | #endif |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 293 | } GDBState; |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 294 | |
edgar_igl | 60897d3 | 2008-05-09 08:25:14 +0000 | [diff] [blame] | 295 | /* By default use no IRQs and no timers while single stepping so as to |
| 296 | * make single stepping like an ICE HW step. |
| 297 | */ |
| 298 | static int sstep_flags = SSTEP_ENABLE|SSTEP_NOIRQ|SSTEP_NOTIMER; |
| 299 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 300 | static GDBState *gdbserver_state; |
| 301 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 302 | /* This is an ugly hack to cope with both new and old gdb. |
| 303 | If gdb sends qXfer:features:read then assume we're talking to a newish |
| 304 | gdb that understands target descriptions. */ |
| 305 | static int gdb_has_xml; |
| 306 | |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 307 | #ifdef CONFIG_USER_ONLY |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 308 | /* XXX: This is not thread safe. Do we care? */ |
| 309 | static int gdbserver_fd = -1; |
| 310 | |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 311 | static int get_char(GDBState *s) |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 312 | { |
| 313 | uint8_t ch; |
| 314 | int ret; |
| 315 | |
| 316 | for(;;) { |
bellard | 8f447cc | 2006-06-14 15:21:14 +0000 | [diff] [blame] | 317 | ret = recv(s->fd, &ch, 1, 0); |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 318 | if (ret < 0) { |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 319 | if (errno == ECONNRESET) |
| 320 | s->fd = -1; |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 321 | if (errno != EINTR && errno != EAGAIN) |
| 322 | return -1; |
| 323 | } else if (ret == 0) { |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 324 | close(s->fd); |
| 325 | s->fd = -1; |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 326 | return -1; |
| 327 | } else { |
| 328 | break; |
| 329 | } |
| 330 | } |
| 331 | return ch; |
| 332 | } |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 333 | #endif |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 334 | |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 335 | static gdb_syscall_complete_cb gdb_current_syscall_cb; |
| 336 | |
blueswir1 | 654efcf | 2009-04-18 07:29:59 +0000 | [diff] [blame] | 337 | static enum { |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 338 | GDB_SYS_UNKNOWN, |
| 339 | GDB_SYS_ENABLED, |
| 340 | GDB_SYS_DISABLED, |
| 341 | } gdb_syscall_mode; |
| 342 | |
| 343 | /* If gdb is connected when the first semihosting syscall occurs then use |
| 344 | remote gdb syscalls. Otherwise use native file IO. */ |
| 345 | int use_gdb_syscalls(void) |
| 346 | { |
| 347 | if (gdb_syscall_mode == GDB_SYS_UNKNOWN) { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 348 | gdb_syscall_mode = (gdbserver_state ? GDB_SYS_ENABLED |
| 349 | : GDB_SYS_DISABLED); |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 350 | } |
| 351 | return gdb_syscall_mode == GDB_SYS_ENABLED; |
| 352 | } |
| 353 | |
edgar_igl | ba70a62 | 2008-03-14 06:10:42 +0000 | [diff] [blame] | 354 | /* Resume execution. */ |
| 355 | static inline void gdb_continue(GDBState *s) |
| 356 | { |
| 357 | #ifdef CONFIG_USER_ONLY |
| 358 | s->running_state = 1; |
| 359 | #else |
| 360 | vm_start(); |
| 361 | #endif |
| 362 | } |
| 363 | |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 364 | static void put_buffer(GDBState *s, const uint8_t *buf, int len) |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 365 | { |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 366 | #ifdef CONFIG_USER_ONLY |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 367 | int ret; |
| 368 | |
| 369 | while (len > 0) { |
bellard | 8f447cc | 2006-06-14 15:21:14 +0000 | [diff] [blame] | 370 | ret = send(s->fd, buf, len, 0); |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 371 | if (ret < 0) { |
| 372 | if (errno != EINTR && errno != EAGAIN) |
| 373 | return; |
| 374 | } else { |
| 375 | buf += ret; |
| 376 | len -= ret; |
| 377 | } |
| 378 | } |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 379 | #else |
| 380 | qemu_chr_write(s->chr, buf, len); |
| 381 | #endif |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | static inline int fromhex(int v) |
| 385 | { |
| 386 | if (v >= '0' && v <= '9') |
| 387 | return v - '0'; |
| 388 | else if (v >= 'A' && v <= 'F') |
| 389 | return v - 'A' + 10; |
| 390 | else if (v >= 'a' && v <= 'f') |
| 391 | return v - 'a' + 10; |
| 392 | else |
| 393 | return 0; |
| 394 | } |
| 395 | |
| 396 | static inline int tohex(int v) |
| 397 | { |
| 398 | if (v < 10) |
| 399 | return v + '0'; |
| 400 | else |
| 401 | return v - 10 + 'a'; |
| 402 | } |
| 403 | |
| 404 | static void memtohex(char *buf, const uint8_t *mem, int len) |
| 405 | { |
| 406 | int i, c; |
| 407 | char *q; |
| 408 | q = buf; |
| 409 | for(i = 0; i < len; i++) { |
| 410 | c = mem[i]; |
| 411 | *q++ = tohex(c >> 4); |
| 412 | *q++ = tohex(c & 0xf); |
| 413 | } |
| 414 | *q = '\0'; |
| 415 | } |
| 416 | |
| 417 | static void hextomem(uint8_t *mem, const char *buf, int len) |
| 418 | { |
| 419 | int i; |
| 420 | |
| 421 | for(i = 0; i < len; i++) { |
| 422 | mem[i] = (fromhex(buf[0]) << 4) | fromhex(buf[1]); |
| 423 | buf += 2; |
| 424 | } |
| 425 | } |
| 426 | |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 427 | /* return -1 if error, 0 if OK */ |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 428 | static int put_packet_binary(GDBState *s, const char *buf, int len) |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 429 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 430 | int csum, i; |
ths | 60fe76f | 2007-12-16 03:02:09 +0000 | [diff] [blame] | 431 | uint8_t *p; |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 432 | |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 433 | for(;;) { |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 434 | p = s->last_packet; |
| 435 | *(p++) = '$'; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 436 | memcpy(p, buf, len); |
| 437 | p += len; |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 438 | csum = 0; |
| 439 | for(i = 0; i < len; i++) { |
| 440 | csum += buf[i]; |
| 441 | } |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 442 | *(p++) = '#'; |
| 443 | *(p++) = tohex((csum >> 4) & 0xf); |
| 444 | *(p++) = tohex((csum) & 0xf); |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 445 | |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 446 | s->last_packet_len = p - s->last_packet; |
ths | ffe8ab8 | 2007-12-16 03:16:05 +0000 | [diff] [blame] | 447 | put_buffer(s, (uint8_t *)s->last_packet, s->last_packet_len); |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 448 | |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 449 | #ifdef CONFIG_USER_ONLY |
| 450 | i = get_char(s); |
| 451 | if (i < 0) |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 452 | return -1; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 453 | if (i == '+') |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 454 | break; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 455 | #else |
| 456 | break; |
| 457 | #endif |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 458 | } |
| 459 | return 0; |
| 460 | } |
| 461 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 462 | /* return -1 if error, 0 if OK */ |
| 463 | static int put_packet(GDBState *s, const char *buf) |
| 464 | { |
| 465 | #ifdef DEBUG_GDB |
| 466 | printf("reply='%s'\n", buf); |
| 467 | #endif |
| 468 | |
| 469 | return put_packet_binary(s, buf, strlen(buf)); |
| 470 | } |
| 471 | |
| 472 | /* The GDB remote protocol transfers values in target byte order. This means |
| 473 | we can use the raw memory access routines to access the value buffer. |
| 474 | Conveniently, these also handle the case where the buffer is mis-aligned. |
| 475 | */ |
| 476 | #define GET_REG8(val) do { \ |
| 477 | stb_p(mem_buf, val); \ |
| 478 | return 1; \ |
| 479 | } while(0) |
| 480 | #define GET_REG16(val) do { \ |
| 481 | stw_p(mem_buf, val); \ |
| 482 | return 2; \ |
| 483 | } while(0) |
| 484 | #define GET_REG32(val) do { \ |
| 485 | stl_p(mem_buf, val); \ |
| 486 | return 4; \ |
| 487 | } while(0) |
| 488 | #define GET_REG64(val) do { \ |
| 489 | stq_p(mem_buf, val); \ |
| 490 | return 8; \ |
| 491 | } while(0) |
| 492 | |
| 493 | #if TARGET_LONG_BITS == 64 |
| 494 | #define GET_REGL(val) GET_REG64(val) |
| 495 | #define ldtul_p(addr) ldq_p(addr) |
| 496 | #else |
| 497 | #define GET_REGL(val) GET_REG32(val) |
| 498 | #define ldtul_p(addr) ldl_p(addr) |
| 499 | #endif |
| 500 | |
edgar_igl | fde3fd6 | 2008-05-09 08:50:01 +0000 | [diff] [blame] | 501 | #if defined(TARGET_I386) |
balrog | 5ad265e | 2007-10-31 00:21:35 +0000 | [diff] [blame] | 502 | |
| 503 | #ifdef TARGET_X86_64 |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 504 | static const int gpr_map[16] = { |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 505 | R_EAX, R_EBX, R_ECX, R_EDX, R_ESI, R_EDI, R_EBP, R_ESP, |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 506 | 8, 9, 10, 11, 12, 13, 14, 15 |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 507 | }; |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 508 | #else |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 509 | static const int gpr_map[8] = {0, 1, 2, 3, 4, 5, 6, 7}; |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 510 | #endif |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 511 | |
| 512 | #define NUM_CORE_REGS (CPU_NB_REGS * 2 + 25) |
| 513 | |
| 514 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
| 515 | { |
| 516 | if (n < CPU_NB_REGS) { |
| 517 | GET_REGL(env->regs[gpr_map[n]]); |
| 518 | } else if (n >= CPU_NB_REGS + 8 && n < CPU_NB_REGS + 16) { |
| 519 | /* FIXME: byteswap float values. */ |
| 520 | #ifdef USE_X86LDOUBLE |
| 521 | memcpy(mem_buf, &env->fpregs[n - (CPU_NB_REGS + 8)], 10); |
| 522 | #else |
| 523 | memset(mem_buf, 0, 10); |
| 524 | #endif |
| 525 | return 10; |
| 526 | } else if (n >= CPU_NB_REGS + 24) { |
| 527 | n -= CPU_NB_REGS + 24; |
| 528 | if (n < CPU_NB_REGS) { |
| 529 | stq_p(mem_buf, env->xmm_regs[n].XMM_Q(0)); |
| 530 | stq_p(mem_buf + 8, env->xmm_regs[n].XMM_Q(1)); |
| 531 | return 16; |
| 532 | } else if (n == CPU_NB_REGS) { |
| 533 | GET_REG32(env->mxcsr); |
| 534 | } |
| 535 | } else { |
| 536 | n -= CPU_NB_REGS; |
| 537 | switch (n) { |
| 538 | case 0: GET_REGL(env->eip); |
| 539 | case 1: GET_REG32(env->eflags); |
| 540 | case 2: GET_REG32(env->segs[R_CS].selector); |
| 541 | case 3: GET_REG32(env->segs[R_SS].selector); |
| 542 | case 4: GET_REG32(env->segs[R_DS].selector); |
| 543 | case 5: GET_REG32(env->segs[R_ES].selector); |
| 544 | case 6: GET_REG32(env->segs[R_FS].selector); |
| 545 | case 7: GET_REG32(env->segs[R_GS].selector); |
| 546 | /* 8...15 x87 regs. */ |
| 547 | case 16: GET_REG32(env->fpuc); |
| 548 | case 17: GET_REG32((env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11); |
| 549 | case 18: GET_REG32(0); /* ftag */ |
| 550 | case 19: GET_REG32(0); /* fiseg */ |
| 551 | case 20: GET_REG32(0); /* fioff */ |
| 552 | case 21: GET_REG32(0); /* foseg */ |
| 553 | case 22: GET_REG32(0); /* fooff */ |
| 554 | case 23: GET_REG32(0); /* fop */ |
| 555 | /* 24+ xmm regs. */ |
| 556 | } |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 557 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 558 | return 0; |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 559 | } |
| 560 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 561 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int i) |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 562 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 563 | uint32_t tmp; |
| 564 | |
| 565 | if (i < CPU_NB_REGS) { |
| 566 | env->regs[gpr_map[i]] = ldtul_p(mem_buf); |
| 567 | return sizeof(target_ulong); |
| 568 | } else if (i >= CPU_NB_REGS + 8 && i < CPU_NB_REGS + 16) { |
| 569 | i -= CPU_NB_REGS + 8; |
| 570 | #ifdef USE_X86LDOUBLE |
| 571 | memcpy(&env->fpregs[i], mem_buf, 10); |
| 572 | #endif |
| 573 | return 10; |
| 574 | } else if (i >= CPU_NB_REGS + 24) { |
| 575 | i -= CPU_NB_REGS + 24; |
| 576 | if (i < CPU_NB_REGS) { |
| 577 | env->xmm_regs[i].XMM_Q(0) = ldq_p(mem_buf); |
| 578 | env->xmm_regs[i].XMM_Q(1) = ldq_p(mem_buf + 8); |
| 579 | return 16; |
| 580 | } else if (i == CPU_NB_REGS) { |
| 581 | env->mxcsr = ldl_p(mem_buf); |
| 582 | return 4; |
| 583 | } |
| 584 | } else { |
| 585 | i -= CPU_NB_REGS; |
| 586 | switch (i) { |
| 587 | case 0: env->eip = ldtul_p(mem_buf); return sizeof(target_ulong); |
| 588 | case 1: env->eflags = ldl_p(mem_buf); return 4; |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 589 | #if defined(CONFIG_USER_ONLY) |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 590 | #define LOAD_SEG(index, sreg)\ |
| 591 | tmp = ldl_p(mem_buf);\ |
| 592 | if (tmp != env->segs[sreg].selector)\ |
| 593 | cpu_x86_load_seg(env, sreg, tmp); |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 594 | #else |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 595 | /* FIXME: Honor segment registers. Needs to avoid raising an exception |
| 596 | when the selector is invalid. */ |
| 597 | #define LOAD_SEG(index, sreg) do {} while(0) |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 598 | #endif |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 599 | case 2: LOAD_SEG(10, R_CS); return 4; |
| 600 | case 3: LOAD_SEG(11, R_SS); return 4; |
| 601 | case 4: LOAD_SEG(12, R_DS); return 4; |
| 602 | case 5: LOAD_SEG(13, R_ES); return 4; |
| 603 | case 6: LOAD_SEG(14, R_FS); return 4; |
| 604 | case 7: LOAD_SEG(15, R_GS); return 4; |
| 605 | /* 8...15 x87 regs. */ |
| 606 | case 16: env->fpuc = ldl_p(mem_buf); return 4; |
| 607 | case 17: |
| 608 | tmp = ldl_p(mem_buf); |
| 609 | env->fpstt = (tmp >> 11) & 7; |
| 610 | env->fpus = tmp & ~0x3800; |
| 611 | return 4; |
| 612 | case 18: /* ftag */ return 4; |
| 613 | case 19: /* fiseg */ return 4; |
| 614 | case 20: /* fioff */ return 4; |
| 615 | case 21: /* foseg */ return 4; |
| 616 | case 22: /* fooff */ return 4; |
| 617 | case 23: /* fop */ return 4; |
| 618 | /* 24+ xmm regs. */ |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 619 | } |
bellard | 7980857 | 2008-05-09 14:40:22 +0000 | [diff] [blame] | 620 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 621 | /* Unrecognised register. */ |
| 622 | return 0; |
bellard | 6da41ea | 2004-01-04 15:48:38 +0000 | [diff] [blame] | 623 | } |
| 624 | |
bellard | 9e62fd7 | 2004-01-05 22:49:06 +0000 | [diff] [blame] | 625 | #elif defined (TARGET_PPC) |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 626 | |
aurel32 | e571cb4 | 2009-01-24 15:07:42 +0000 | [diff] [blame] | 627 | /* Old gdb always expects FP registers. Newer (xml-aware) gdb only |
| 628 | expects whatever the target description contains. Due to a |
| 629 | historical mishap the FP registers appear in between core integer |
| 630 | regs and PC, MSR, CR, and so forth. We hack round this by giving the |
| 631 | FP regs zero size when talking to a newer gdb. */ |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 632 | #define NUM_CORE_REGS 71 |
aurel32 | e571cb4 | 2009-01-24 15:07:42 +0000 | [diff] [blame] | 633 | #if defined (TARGET_PPC64) |
| 634 | #define GDB_CORE_XML "power64-core.xml" |
| 635 | #else |
| 636 | #define GDB_CORE_XML "power-core.xml" |
| 637 | #endif |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 638 | |
| 639 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | 9e62fd7 | 2004-01-05 22:49:06 +0000 | [diff] [blame] | 640 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 641 | if (n < 32) { |
| 642 | /* gprs */ |
| 643 | GET_REGL(env->gpr[n]); |
| 644 | } else if (n < 64) { |
| 645 | /* fprs */ |
aurel32 | e571cb4 | 2009-01-24 15:07:42 +0000 | [diff] [blame] | 646 | if (gdb_has_xml) |
| 647 | return 0; |
aurel32 | 8d4acf9 | 2008-11-30 16:23:18 +0000 | [diff] [blame] | 648 | stfq_p(mem_buf, env->fpr[n-32]); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 649 | return 8; |
| 650 | } else { |
| 651 | switch (n) { |
| 652 | case 64: GET_REGL(env->nip); |
| 653 | case 65: GET_REGL(env->msr); |
| 654 | case 66: |
| 655 | { |
| 656 | uint32_t cr = 0; |
| 657 | int i; |
| 658 | for (i = 0; i < 8; i++) |
| 659 | cr |= env->crf[i] << (32 - ((i + 1) * 4)); |
| 660 | GET_REG32(cr); |
| 661 | } |
| 662 | case 67: GET_REGL(env->lr); |
| 663 | case 68: GET_REGL(env->ctr); |
aurel32 | 3d7b417 | 2008-10-21 11:28:46 +0000 | [diff] [blame] | 664 | case 69: GET_REGL(env->xer); |
aurel32 | e571cb4 | 2009-01-24 15:07:42 +0000 | [diff] [blame] | 665 | case 70: |
| 666 | { |
| 667 | if (gdb_has_xml) |
| 668 | return 0; |
| 669 | GET_REG32(0); /* fpscr */ |
| 670 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 671 | } |
bellard | 9e62fd7 | 2004-01-05 22:49:06 +0000 | [diff] [blame] | 672 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 673 | return 0; |
bellard | 9e62fd7 | 2004-01-05 22:49:06 +0000 | [diff] [blame] | 674 | } |
| 675 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 676 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | 9e62fd7 | 2004-01-05 22:49:06 +0000 | [diff] [blame] | 677 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 678 | if (n < 32) { |
| 679 | /* gprs */ |
| 680 | env->gpr[n] = ldtul_p(mem_buf); |
| 681 | return sizeof(target_ulong); |
| 682 | } else if (n < 64) { |
| 683 | /* fprs */ |
aurel32 | e571cb4 | 2009-01-24 15:07:42 +0000 | [diff] [blame] | 684 | if (gdb_has_xml) |
| 685 | return 0; |
aurel32 | 8d4acf9 | 2008-11-30 16:23:18 +0000 | [diff] [blame] | 686 | env->fpr[n-32] = ldfq_p(mem_buf); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 687 | return 8; |
| 688 | } else { |
| 689 | switch (n) { |
| 690 | case 64: |
| 691 | env->nip = ldtul_p(mem_buf); |
| 692 | return sizeof(target_ulong); |
| 693 | case 65: |
| 694 | ppc_store_msr(env, ldtul_p(mem_buf)); |
| 695 | return sizeof(target_ulong); |
| 696 | case 66: |
| 697 | { |
| 698 | uint32_t cr = ldl_p(mem_buf); |
| 699 | int i; |
| 700 | for (i = 0; i < 8; i++) |
| 701 | env->crf[i] = (cr >> (32 - ((i + 1) * 4))) & 0xF; |
| 702 | return 4; |
| 703 | } |
| 704 | case 67: |
| 705 | env->lr = ldtul_p(mem_buf); |
| 706 | return sizeof(target_ulong); |
| 707 | case 68: |
| 708 | env->ctr = ldtul_p(mem_buf); |
| 709 | return sizeof(target_ulong); |
| 710 | case 69: |
aurel32 | 3d7b417 | 2008-10-21 11:28:46 +0000 | [diff] [blame] | 711 | env->xer = ldtul_p(mem_buf); |
| 712 | return sizeof(target_ulong); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 713 | case 70: |
| 714 | /* fpscr */ |
aurel32 | e571cb4 | 2009-01-24 15:07:42 +0000 | [diff] [blame] | 715 | if (gdb_has_xml) |
| 716 | return 0; |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 717 | return 4; |
| 718 | } |
bellard | 9e62fd7 | 2004-01-05 22:49:06 +0000 | [diff] [blame] | 719 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 720 | return 0; |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 721 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 722 | |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 723 | #elif defined (TARGET_SPARC) |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 724 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 725 | #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) |
| 726 | #define NUM_CORE_REGS 86 |
| 727 | #else |
blueswir1 | 5a37791 | 2009-01-13 16:28:01 +0000 | [diff] [blame] | 728 | #define NUM_CORE_REGS 72 |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 729 | #endif |
| 730 | |
| 731 | #ifdef TARGET_ABI32 |
| 732 | #define GET_REGA(val) GET_REG32(val) |
| 733 | #else |
| 734 | #define GET_REGA(val) GET_REGL(val) |
| 735 | #endif |
| 736 | |
| 737 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
| 738 | { |
| 739 | if (n < 8) { |
| 740 | /* g0..g7 */ |
| 741 | GET_REGA(env->gregs[n]); |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 742 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 743 | if (n < 32) { |
| 744 | /* register window */ |
| 745 | GET_REGA(env->regwptr[n - 8]); |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 746 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 747 | #if defined(TARGET_ABI32) || !defined(TARGET_SPARC64) |
| 748 | if (n < 64) { |
| 749 | /* fprs */ |
| 750 | GET_REG32(*((uint32_t *)&env->fpr[n - 32])); |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 751 | } |
| 752 | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */ |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 753 | switch (n) { |
| 754 | case 64: GET_REGA(env->y); |
| 755 | case 65: GET_REGA(GET_PSR(env)); |
| 756 | case 66: GET_REGA(env->wim); |
| 757 | case 67: GET_REGA(env->tbr); |
| 758 | case 68: GET_REGA(env->pc); |
| 759 | case 69: GET_REGA(env->npc); |
| 760 | case 70: GET_REGA(env->fsr); |
| 761 | case 71: GET_REGA(0); /* csr */ |
blueswir1 | 5a37791 | 2009-01-13 16:28:01 +0000 | [diff] [blame] | 762 | default: GET_REGA(0); |
bellard | 3475187 | 2005-07-02 14:31:34 +0000 | [diff] [blame] | 763 | } |
bellard | 3475187 | 2005-07-02 14:31:34 +0000 | [diff] [blame] | 764 | #else |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 765 | if (n < 64) { |
| 766 | /* f0-f31 */ |
| 767 | GET_REG32(*((uint32_t *)&env->fpr[n - 32])); |
bellard | 3475187 | 2005-07-02 14:31:34 +0000 | [diff] [blame] | 768 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 769 | if (n < 80) { |
| 770 | /* f32-f62 (double width, even numbers only) */ |
| 771 | uint64_t val; |
| 772 | |
| 773 | val = (uint64_t)*((uint32_t *)&env->fpr[(n - 64) * 2 + 32]) << 32; |
| 774 | val |= *((uint32_t *)&env->fpr[(n - 64) * 2 + 33]); |
| 775 | GET_REG64(val); |
| 776 | } |
| 777 | switch (n) { |
| 778 | case 80: GET_REGL(env->pc); |
| 779 | case 81: GET_REGL(env->npc); |
| 780 | case 82: GET_REGL(((uint64_t)GET_CCR(env) << 32) | |
blueswir1 | 17d996e | 2007-07-07 20:53:22 +0000 | [diff] [blame] | 781 | ((env->asi & 0xff) << 24) | |
| 782 | ((env->pstate & 0xfff) << 8) | |
| 783 | GET_CWP64(env)); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 784 | case 83: GET_REGL(env->fsr); |
| 785 | case 84: GET_REGL(env->fprs); |
| 786 | case 85: GET_REGL(env->y); |
| 787 | } |
bellard | 3475187 | 2005-07-02 14:31:34 +0000 | [diff] [blame] | 788 | #endif |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 789 | return 0; |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 790 | } |
| 791 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 792 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 793 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 794 | #if defined(TARGET_ABI32) |
| 795 | abi_ulong tmp; |
| 796 | |
| 797 | tmp = ldl_p(mem_buf); |
blueswir1 | 96d1912 | 2008-06-07 08:03:05 +0000 | [diff] [blame] | 798 | #else |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 799 | target_ulong tmp; |
| 800 | |
| 801 | tmp = ldtul_p(mem_buf); |
blueswir1 | 96d1912 | 2008-06-07 08:03:05 +0000 | [diff] [blame] | 802 | #endif |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 803 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 804 | if (n < 8) { |
| 805 | /* g0..g7 */ |
| 806 | env->gregs[n] = tmp; |
| 807 | } else if (n < 32) { |
| 808 | /* register window */ |
| 809 | env->regwptr[n - 8] = tmp; |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 810 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 811 | #if defined(TARGET_ABI32) || !defined(TARGET_SPARC64) |
| 812 | else if (n < 64) { |
| 813 | /* fprs */ |
| 814 | *((uint32_t *)&env->fpr[n - 32]) = tmp; |
| 815 | } else { |
| 816 | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */ |
| 817 | switch (n) { |
| 818 | case 64: env->y = tmp; break; |
| 819 | case 65: PUT_PSR(env, tmp); break; |
| 820 | case 66: env->wim = tmp; break; |
| 821 | case 67: env->tbr = tmp; break; |
| 822 | case 68: env->pc = tmp; break; |
| 823 | case 69: env->npc = tmp; break; |
| 824 | case 70: env->fsr = tmp; break; |
| 825 | default: return 0; |
| 826 | } |
bellard | e95c8d5 | 2004-09-30 22:22:08 +0000 | [diff] [blame] | 827 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 828 | return 4; |
bellard | 3475187 | 2005-07-02 14:31:34 +0000 | [diff] [blame] | 829 | #else |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 830 | else if (n < 64) { |
| 831 | /* f0-f31 */ |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 832 | env->fpr[n] = ldfl_p(mem_buf); |
| 833 | return 4; |
| 834 | } else if (n < 80) { |
| 835 | /* f32-f62 (double width, even numbers only) */ |
| 836 | *((uint32_t *)&env->fpr[(n - 64) * 2 + 32]) = tmp >> 32; |
| 837 | *((uint32_t *)&env->fpr[(n - 64) * 2 + 33]) = tmp; |
| 838 | } else { |
| 839 | switch (n) { |
| 840 | case 80: env->pc = tmp; break; |
| 841 | case 81: env->npc = tmp; break; |
| 842 | case 82: |
| 843 | PUT_CCR(env, tmp >> 32); |
| 844 | env->asi = (tmp >> 24) & 0xff; |
| 845 | env->pstate = (tmp >> 8) & 0xfff; |
| 846 | PUT_CWP64(env, tmp & 0xff); |
| 847 | break; |
| 848 | case 83: env->fsr = tmp; break; |
| 849 | case 84: env->fprs = tmp; break; |
| 850 | case 85: env->y = tmp; break; |
| 851 | default: return 0; |
| 852 | } |
bellard | 3475187 | 2005-07-02 14:31:34 +0000 | [diff] [blame] | 853 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 854 | return 8; |
bellard | 3475187 | 2005-07-02 14:31:34 +0000 | [diff] [blame] | 855 | #endif |
bellard | 9e62fd7 | 2004-01-05 22:49:06 +0000 | [diff] [blame] | 856 | } |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 857 | #elif defined (TARGET_ARM) |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 858 | |
| 859 | /* Old gdb always expect FPA registers. Newer (xml-aware) gdb only expect |
| 860 | whatever the target description contains. Due to a historical mishap |
| 861 | the FPA registers appear in between core integer regs and the CPSR. |
| 862 | We hack round this by giving the FPA regs zero size when talking to a |
| 863 | newer gdb. */ |
| 864 | #define NUM_CORE_REGS 26 |
| 865 | #define GDB_CORE_XML "arm-core.xml" |
| 866 | |
| 867 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 868 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 869 | if (n < 16) { |
| 870 | /* Core integer register. */ |
| 871 | GET_REG32(env->regs[n]); |
| 872 | } |
| 873 | if (n < 24) { |
| 874 | /* FPA registers. */ |
| 875 | if (gdb_has_xml) |
| 876 | return 0; |
| 877 | memset(mem_buf, 0, 12); |
| 878 | return 12; |
| 879 | } |
| 880 | switch (n) { |
| 881 | case 24: |
| 882 | /* FPA status register. */ |
| 883 | if (gdb_has_xml) |
| 884 | return 0; |
| 885 | GET_REG32(0); |
| 886 | case 25: |
| 887 | /* CPSR */ |
| 888 | GET_REG32(cpsr_read(env)); |
| 889 | } |
| 890 | /* Unknown register. */ |
| 891 | return 0; |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 892 | } |
| 893 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 894 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 895 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 896 | uint32_t tmp; |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 897 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 898 | tmp = ldl_p(mem_buf); |
| 899 | |
| 900 | /* Mask out low bit of PC to workaround gdb bugs. This will probably |
| 901 | cause problems if we ever implement the Jazelle DBX extensions. */ |
| 902 | if (n == 15) |
| 903 | tmp &= ~1; |
| 904 | |
| 905 | if (n < 16) { |
| 906 | /* Core integer register. */ |
| 907 | env->regs[n] = tmp; |
| 908 | return 4; |
| 909 | } |
| 910 | if (n < 24) { /* 16-23 */ |
| 911 | /* FPA registers (ignored). */ |
| 912 | if (gdb_has_xml) |
| 913 | return 0; |
| 914 | return 12; |
| 915 | } |
| 916 | switch (n) { |
| 917 | case 24: |
| 918 | /* FPA status register (ignored). */ |
| 919 | if (gdb_has_xml) |
| 920 | return 0; |
| 921 | return 4; |
| 922 | case 25: |
| 923 | /* CPSR */ |
| 924 | cpsr_write (env, tmp, 0xffffffff); |
| 925 | return 4; |
| 926 | } |
| 927 | /* Unknown register. */ |
| 928 | return 0; |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 929 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 930 | |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 931 | #elif defined (TARGET_M68K) |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 932 | |
| 933 | #define NUM_CORE_REGS 18 |
| 934 | |
| 935 | #define GDB_CORE_XML "cf-core.xml" |
| 936 | |
| 937 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 938 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 939 | if (n < 8) { |
| 940 | /* D0-D7 */ |
| 941 | GET_REG32(env->dregs[n]); |
| 942 | } else if (n < 16) { |
| 943 | /* A0-A7 */ |
| 944 | GET_REG32(env->aregs[n - 8]); |
| 945 | } else { |
| 946 | switch (n) { |
| 947 | case 16: GET_REG32(env->sr); |
| 948 | case 17: GET_REG32(env->pc); |
| 949 | } |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 950 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 951 | /* FP registers not included here because they vary between |
| 952 | ColdFire and m68k. Use XML bits for these. */ |
| 953 | return 0; |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 954 | } |
| 955 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 956 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 957 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 958 | uint32_t tmp; |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 959 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 960 | tmp = ldl_p(mem_buf); |
| 961 | |
| 962 | if (n < 8) { |
| 963 | /* D0-D7 */ |
| 964 | env->dregs[n] = tmp; |
| 965 | } else if (n < 8) { |
| 966 | /* A0-A7 */ |
| 967 | env->aregs[n - 8] = tmp; |
| 968 | } else { |
| 969 | switch (n) { |
| 970 | case 16: env->sr = tmp; break; |
| 971 | case 17: env->pc = tmp; break; |
| 972 | default: return 0; |
| 973 | } |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 974 | } |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 975 | return 4; |
pbrook | e6e5906 | 2006-10-22 00:18:54 +0000 | [diff] [blame] | 976 | } |
bellard | 6f970bd | 2005-12-05 19:55:19 +0000 | [diff] [blame] | 977 | #elif defined (TARGET_MIPS) |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 978 | |
| 979 | #define NUM_CORE_REGS 73 |
| 980 | |
| 981 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | 6f970bd | 2005-12-05 19:55:19 +0000 | [diff] [blame] | 982 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 983 | if (n < 32) { |
| 984 | GET_REGL(env->active_tc.gpr[n]); |
| 985 | } |
| 986 | if (env->CP0_Config1 & (1 << CP0C1_FP)) { |
| 987 | if (n >= 38 && n < 70) { |
ths | 7ac256b | 2007-10-25 21:30:37 +0000 | [diff] [blame] | 988 | if (env->CP0_Status & (1 << CP0St_FR)) |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 989 | GET_REGL(env->active_fpu.fpr[n - 38].d); |
ths | 7ac256b | 2007-10-25 21:30:37 +0000 | [diff] [blame] | 990 | else |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 991 | GET_REGL(env->active_fpu.fpr[n - 38].w[FP_ENDIAN_IDX]); |
| 992 | } |
| 993 | switch (n) { |
| 994 | case 70: GET_REGL((int32_t)env->active_fpu.fcr31); |
| 995 | case 71: GET_REGL((int32_t)env->active_fpu.fcr0); |
| 996 | } |
| 997 | } |
| 998 | switch (n) { |
| 999 | case 32: GET_REGL((int32_t)env->CP0_Status); |
| 1000 | case 33: GET_REGL(env->active_tc.LO[0]); |
| 1001 | case 34: GET_REGL(env->active_tc.HI[0]); |
| 1002 | case 35: GET_REGL(env->CP0_BadVAddr); |
| 1003 | case 36: GET_REGL((int32_t)env->CP0_Cause); |
| 1004 | case 37: GET_REGL(env->active_tc.PC); |
| 1005 | case 72: GET_REGL(0); /* fp */ |
| 1006 | case 89: GET_REGL((int32_t)env->CP0_PRid); |
| 1007 | } |
| 1008 | if (n >= 73 && n <= 88) { |
| 1009 | /* 16 embedded regs. */ |
| 1010 | GET_REGL(0); |
| 1011 | } |
ths | 36d2395 | 2007-02-28 22:37:42 +0000 | [diff] [blame] | 1012 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1013 | return 0; |
bellard | 6f970bd | 2005-12-05 19:55:19 +0000 | [diff] [blame] | 1014 | } |
| 1015 | |
ths | 8e33c08 | 2006-12-11 19:22:27 +0000 | [diff] [blame] | 1016 | /* convert MIPS rounding mode in FCR31 to IEEE library */ |
| 1017 | static unsigned int ieee_rm[] = |
| 1018 | { |
| 1019 | float_round_nearest_even, |
| 1020 | float_round_to_zero, |
| 1021 | float_round_up, |
| 1022 | float_round_down |
| 1023 | }; |
| 1024 | #define RESTORE_ROUNDING_MODE \ |
ths | f01be15 | 2008-09-18 11:57:27 +0000 | [diff] [blame] | 1025 | set_float_rounding_mode(ieee_rm[env->active_fpu.fcr31 & 3], &env->active_fpu.fp_status) |
ths | 8e33c08 | 2006-12-11 19:22:27 +0000 | [diff] [blame] | 1026 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1027 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | 6f970bd | 2005-12-05 19:55:19 +0000 | [diff] [blame] | 1028 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1029 | target_ulong tmp; |
bellard | 6f970bd | 2005-12-05 19:55:19 +0000 | [diff] [blame] | 1030 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1031 | tmp = ldtul_p(mem_buf); |
bellard | 6f970bd | 2005-12-05 19:55:19 +0000 | [diff] [blame] | 1032 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1033 | if (n < 32) { |
| 1034 | env->active_tc.gpr[n] = tmp; |
| 1035 | return sizeof(target_ulong); |
| 1036 | } |
| 1037 | if (env->CP0_Config1 & (1 << CP0C1_FP) |
| 1038 | && n >= 38 && n < 73) { |
| 1039 | if (n < 70) { |
ths | 7ac256b | 2007-10-25 21:30:37 +0000 | [diff] [blame] | 1040 | if (env->CP0_Status & (1 << CP0St_FR)) |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1041 | env->active_fpu.fpr[n - 38].d = tmp; |
ths | 7ac256b | 2007-10-25 21:30:37 +0000 | [diff] [blame] | 1042 | else |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1043 | env->active_fpu.fpr[n - 38].w[FP_ENDIAN_IDX] = tmp; |
| 1044 | } |
| 1045 | switch (n) { |
| 1046 | case 70: |
| 1047 | env->active_fpu.fcr31 = tmp & 0xFF83FFFF; |
| 1048 | /* set rounding mode */ |
| 1049 | RESTORE_ROUNDING_MODE; |
ths | 8e33c08 | 2006-12-11 19:22:27 +0000 | [diff] [blame] | 1050 | #ifndef CONFIG_SOFTFLOAT |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1051 | /* no floating point exception for native float */ |
| 1052 | SET_FP_ENABLE(env->active_fpu.fcr31, 0); |
ths | 8e33c08 | 2006-12-11 19:22:27 +0000 | [diff] [blame] | 1053 | #endif |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1054 | break; |
| 1055 | case 71: env->active_fpu.fcr0 = tmp; break; |
| 1056 | } |
| 1057 | return sizeof(target_ulong); |
| 1058 | } |
| 1059 | switch (n) { |
| 1060 | case 32: env->CP0_Status = tmp; break; |
| 1061 | case 33: env->active_tc.LO[0] = tmp; break; |
| 1062 | case 34: env->active_tc.HI[0] = tmp; break; |
| 1063 | case 35: env->CP0_BadVAddr = tmp; break; |
| 1064 | case 36: env->CP0_Cause = tmp; break; |
| 1065 | case 37: env->active_tc.PC = tmp; break; |
| 1066 | case 72: /* fp, ignored */ break; |
| 1067 | default: |
| 1068 | if (n > 89) |
| 1069 | return 0; |
| 1070 | /* Other registers are readonly. Ignore writes. */ |
| 1071 | break; |
| 1072 | } |
| 1073 | |
| 1074 | return sizeof(target_ulong); |
bellard | 6f970bd | 2005-12-05 19:55:19 +0000 | [diff] [blame] | 1075 | } |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1076 | #elif defined (TARGET_SH4) |
ths | 6ef99fc | 2007-05-13 16:36:24 +0000 | [diff] [blame] | 1077 | |
| 1078 | /* Hint: Use "set architecture sh4" in GDB to see fpu registers */ |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1079 | /* FIXME: We should use XML for this. */ |
ths | 6ef99fc | 2007-05-13 16:36:24 +0000 | [diff] [blame] | 1080 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1081 | #define NUM_CORE_REGS 59 |
| 1082 | |
| 1083 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1084 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1085 | if (n < 8) { |
| 1086 | if ((env->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB)) { |
| 1087 | GET_REGL(env->gregs[n + 16]); |
| 1088 | } else { |
| 1089 | GET_REGL(env->gregs[n]); |
| 1090 | } |
| 1091 | } else if (n < 16) { |
| 1092 | GET_REGL(env->gregs[n - 8]); |
| 1093 | } else if (n >= 25 && n < 41) { |
| 1094 | GET_REGL(env->fregs[(n - 25) + ((env->fpscr & FPSCR_FR) ? 16 : 0)]); |
| 1095 | } else if (n >= 43 && n < 51) { |
| 1096 | GET_REGL(env->gregs[n - 43]); |
| 1097 | } else if (n >= 51 && n < 59) { |
| 1098 | GET_REGL(env->gregs[n - (51 - 16)]); |
| 1099 | } |
| 1100 | switch (n) { |
| 1101 | case 16: GET_REGL(env->pc); |
| 1102 | case 17: GET_REGL(env->pr); |
| 1103 | case 18: GET_REGL(env->gbr); |
| 1104 | case 19: GET_REGL(env->vbr); |
| 1105 | case 20: GET_REGL(env->mach); |
| 1106 | case 21: GET_REGL(env->macl); |
| 1107 | case 22: GET_REGL(env->sr); |
| 1108 | case 23: GET_REGL(env->fpul); |
| 1109 | case 24: GET_REGL(env->fpscr); |
| 1110 | case 41: GET_REGL(env->ssr); |
| 1111 | case 42: GET_REGL(env->spc); |
| 1112 | } |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1113 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1114 | return 0; |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1115 | } |
| 1116 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1117 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1118 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1119 | uint32_t tmp; |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1120 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1121 | tmp = ldl_p(mem_buf); |
| 1122 | |
| 1123 | if (n < 8) { |
| 1124 | if ((env->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB)) { |
| 1125 | env->gregs[n + 16] = tmp; |
| 1126 | } else { |
| 1127 | env->gregs[n] = tmp; |
| 1128 | } |
| 1129 | return 4; |
| 1130 | } else if (n < 16) { |
| 1131 | env->gregs[n - 8] = tmp; |
| 1132 | return 4; |
| 1133 | } else if (n >= 25 && n < 41) { |
| 1134 | env->fregs[(n - 25) + ((env->fpscr & FPSCR_FR) ? 16 : 0)] = tmp; |
| 1135 | } else if (n >= 43 && n < 51) { |
| 1136 | env->gregs[n - 43] = tmp; |
| 1137 | return 4; |
| 1138 | } else if (n >= 51 && n < 59) { |
| 1139 | env->gregs[n - (51 - 16)] = tmp; |
| 1140 | return 4; |
| 1141 | } |
| 1142 | switch (n) { |
| 1143 | case 16: env->pc = tmp; |
| 1144 | case 17: env->pr = tmp; |
| 1145 | case 18: env->gbr = tmp; |
| 1146 | case 19: env->vbr = tmp; |
| 1147 | case 20: env->mach = tmp; |
| 1148 | case 21: env->macl = tmp; |
| 1149 | case 22: env->sr = tmp; |
| 1150 | case 23: env->fpul = tmp; |
| 1151 | case 24: env->fpscr = tmp; |
| 1152 | case 41: env->ssr = tmp; |
| 1153 | case 42: env->spc = tmp; |
| 1154 | default: return 0; |
| 1155 | } |
| 1156 | |
| 1157 | return 4; |
bellard | fdf9b3e | 2006-04-27 21:07:38 +0000 | [diff] [blame] | 1158 | } |
Edgar E. Iglesias | d74d6a9 | 2009-05-20 20:16:31 +0200 | [diff] [blame] | 1159 | #elif defined (TARGET_MICROBLAZE) |
| 1160 | |
| 1161 | #define NUM_CORE_REGS (32 + 5) |
| 1162 | |
| 1163 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
| 1164 | { |
| 1165 | if (n < 32) { |
| 1166 | GET_REG32(env->regs[n]); |
| 1167 | } else { |
| 1168 | GET_REG32(env->sregs[n - 32]); |
| 1169 | } |
| 1170 | return 0; |
| 1171 | } |
| 1172 | |
| 1173 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
| 1174 | { |
| 1175 | uint32_t tmp; |
| 1176 | |
| 1177 | if (n > NUM_CORE_REGS) |
| 1178 | return 0; |
| 1179 | |
| 1180 | tmp = ldl_p(mem_buf); |
| 1181 | |
| 1182 | if (n < 32) { |
| 1183 | env->regs[n] = tmp; |
| 1184 | } else { |
| 1185 | env->sregs[n - 32] = tmp; |
| 1186 | } |
| 1187 | return 4; |
| 1188 | } |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1189 | #elif defined (TARGET_CRIS) |
| 1190 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1191 | #define NUM_CORE_REGS 49 |
| 1192 | |
| 1193 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1194 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1195 | uint8_t srs; |
| 1196 | |
| 1197 | srs = env->pregs[PR_SRS]; |
| 1198 | if (n < 16) { |
| 1199 | GET_REG32(env->regs[n]); |
| 1200 | } |
| 1201 | |
| 1202 | if (n >= 21 && n < 32) { |
| 1203 | GET_REG32(env->pregs[n - 16]); |
| 1204 | } |
| 1205 | if (n >= 33 && n < 49) { |
| 1206 | GET_REG32(env->sregs[srs][n - 33]); |
| 1207 | } |
| 1208 | switch (n) { |
| 1209 | case 16: GET_REG8(env->pregs[0]); |
| 1210 | case 17: GET_REG8(env->pregs[1]); |
| 1211 | case 18: GET_REG32(env->pregs[2]); |
| 1212 | case 19: GET_REG8(srs); |
| 1213 | case 20: GET_REG16(env->pregs[4]); |
| 1214 | case 32: GET_REG32(env->pc); |
| 1215 | } |
| 1216 | |
| 1217 | return 0; |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1218 | } |
| 1219 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1220 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1221 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1222 | uint32_t tmp; |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1223 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1224 | if (n > 49) |
| 1225 | return 0; |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1226 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1227 | tmp = ldl_p(mem_buf); |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1228 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1229 | if (n < 16) { |
| 1230 | env->regs[n] = tmp; |
| 1231 | } |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1232 | |
edgar_igl | d7b6967 | 2008-10-11 19:32:21 +0000 | [diff] [blame] | 1233 | if (n >= 21 && n < 32) { |
| 1234 | env->pregs[n - 16] = tmp; |
| 1235 | } |
| 1236 | |
| 1237 | /* FIXME: Should support function regs be writable? */ |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1238 | switch (n) { |
| 1239 | case 16: return 1; |
| 1240 | case 17: return 1; |
edgar_igl | d7b6967 | 2008-10-11 19:32:21 +0000 | [diff] [blame] | 1241 | case 18: env->pregs[PR_PID] = tmp; break; |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1242 | case 19: return 1; |
| 1243 | case 20: return 2; |
| 1244 | case 32: env->pc = tmp; break; |
| 1245 | } |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1246 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1247 | return 4; |
ths | f1ccf90 | 2007-10-08 13:16:14 +0000 | [diff] [blame] | 1248 | } |
aurel32 | 19bf517 | 2008-12-07 23:26:32 +0000 | [diff] [blame] | 1249 | #elif defined (TARGET_ALPHA) |
| 1250 | |
| 1251 | #define NUM_CORE_REGS 65 |
| 1252 | |
| 1253 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
| 1254 | { |
| 1255 | if (n < 31) { |
| 1256 | GET_REGL(env->ir[n]); |
| 1257 | } |
| 1258 | else if (n == 31) { |
| 1259 | GET_REGL(0); |
| 1260 | } |
| 1261 | else if (n<63) { |
| 1262 | uint64_t val; |
| 1263 | |
| 1264 | val=*((uint64_t *)&env->fir[n-32]); |
| 1265 | GET_REGL(val); |
| 1266 | } |
| 1267 | else if (n==63) { |
| 1268 | GET_REGL(env->fpcr); |
| 1269 | } |
| 1270 | else if (n==64) { |
| 1271 | GET_REGL(env->pc); |
| 1272 | } |
| 1273 | else { |
| 1274 | GET_REGL(0); |
| 1275 | } |
| 1276 | |
| 1277 | return 0; |
| 1278 | } |
| 1279 | |
| 1280 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
| 1281 | { |
| 1282 | target_ulong tmp; |
| 1283 | tmp = ldtul_p(mem_buf); |
| 1284 | |
| 1285 | if (n < 31) { |
| 1286 | env->ir[n] = tmp; |
| 1287 | } |
| 1288 | |
| 1289 | if (n > 31 && n < 63) { |
| 1290 | env->fir[n - 32] = ldfl_p(mem_buf); |
| 1291 | } |
| 1292 | |
| 1293 | if (n == 64 ) { |
| 1294 | env->pc=tmp; |
| 1295 | } |
| 1296 | |
| 1297 | return 8; |
| 1298 | } |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 1299 | #else |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1300 | |
| 1301 | #define NUM_CORE_REGS 0 |
| 1302 | |
| 1303 | static int cpu_gdb_read_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | 6da41ea | 2004-01-04 15:48:38 +0000 | [diff] [blame] | 1304 | { |
| 1305 | return 0; |
| 1306 | } |
| 1307 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1308 | static int cpu_gdb_write_register(CPUState *env, uint8_t *mem_buf, int n) |
bellard | 6da41ea | 2004-01-04 15:48:38 +0000 | [diff] [blame] | 1309 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1310 | return 0; |
bellard | 6da41ea | 2004-01-04 15:48:38 +0000 | [diff] [blame] | 1311 | } |
| 1312 | |
| 1313 | #endif |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 1314 | |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1315 | static int num_g_regs = NUM_CORE_REGS; |
| 1316 | |
| 1317 | #ifdef GDB_CORE_XML |
| 1318 | /* Encode data using the encoding for 'x' packets. */ |
| 1319 | static int memtox(char *buf, const char *mem, int len) |
| 1320 | { |
| 1321 | char *p = buf; |
| 1322 | char c; |
| 1323 | |
| 1324 | while (len--) { |
| 1325 | c = *(mem++); |
| 1326 | switch (c) { |
| 1327 | case '#': case '$': case '*': case '}': |
| 1328 | *(p++) = '}'; |
| 1329 | *(p++) = c ^ 0x20; |
| 1330 | break; |
| 1331 | default: |
| 1332 | *(p++) = c; |
| 1333 | break; |
| 1334 | } |
| 1335 | } |
| 1336 | return p - buf; |
| 1337 | } |
| 1338 | |
aurel32 | 3faf778 | 2008-12-07 23:26:17 +0000 | [diff] [blame] | 1339 | static const char *get_feature_xml(const char *p, const char **newp) |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1340 | { |
| 1341 | extern const char *const xml_builtin[][2]; |
| 1342 | size_t len; |
| 1343 | int i; |
| 1344 | const char *name; |
| 1345 | static char target_xml[1024]; |
| 1346 | |
| 1347 | len = 0; |
| 1348 | while (p[len] && p[len] != ':') |
| 1349 | len++; |
| 1350 | *newp = p + len; |
| 1351 | |
| 1352 | name = NULL; |
| 1353 | if (strncmp(p, "target.xml", len) == 0) { |
| 1354 | /* Generate the XML description for this CPU. */ |
| 1355 | if (!target_xml[0]) { |
| 1356 | GDBRegisterState *r; |
| 1357 | |
blueswir1 | 5b3715b | 2008-10-25 11:18:12 +0000 | [diff] [blame] | 1358 | snprintf(target_xml, sizeof(target_xml), |
| 1359 | "<?xml version=\"1.0\"?>" |
| 1360 | "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">" |
| 1361 | "<target>" |
| 1362 | "<xi:include href=\"%s\"/>", |
| 1363 | GDB_CORE_XML); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1364 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1365 | for (r = first_cpu->gdb_regs; r; r = r->next) { |
blueswir1 | 2dc766d | 2009-04-13 16:06:19 +0000 | [diff] [blame] | 1366 | pstrcat(target_xml, sizeof(target_xml), "<xi:include href=\""); |
| 1367 | pstrcat(target_xml, sizeof(target_xml), r->xml); |
| 1368 | pstrcat(target_xml, sizeof(target_xml), "\"/>"); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1369 | } |
blueswir1 | 2dc766d | 2009-04-13 16:06:19 +0000 | [diff] [blame] | 1370 | pstrcat(target_xml, sizeof(target_xml), "</target>"); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1371 | } |
| 1372 | return target_xml; |
| 1373 | } |
| 1374 | for (i = 0; ; i++) { |
| 1375 | name = xml_builtin[i][0]; |
| 1376 | if (!name || (strncmp(name, p, len) == 0 && strlen(name) == len)) |
| 1377 | break; |
| 1378 | } |
| 1379 | return name ? xml_builtin[i][1] : NULL; |
| 1380 | } |
| 1381 | #endif |
| 1382 | |
| 1383 | static int gdb_read_register(CPUState *env, uint8_t *mem_buf, int reg) |
| 1384 | { |
| 1385 | GDBRegisterState *r; |
| 1386 | |
| 1387 | if (reg < NUM_CORE_REGS) |
| 1388 | return cpu_gdb_read_register(env, mem_buf, reg); |
| 1389 | |
| 1390 | for (r = env->gdb_regs; r; r = r->next) { |
| 1391 | if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) { |
| 1392 | return r->get_reg(env, mem_buf, reg - r->base_reg); |
| 1393 | } |
| 1394 | } |
| 1395 | return 0; |
| 1396 | } |
| 1397 | |
| 1398 | static int gdb_write_register(CPUState *env, uint8_t *mem_buf, int reg) |
| 1399 | { |
| 1400 | GDBRegisterState *r; |
| 1401 | |
| 1402 | if (reg < NUM_CORE_REGS) |
| 1403 | return cpu_gdb_write_register(env, mem_buf, reg); |
| 1404 | |
| 1405 | for (r = env->gdb_regs; r; r = r->next) { |
| 1406 | if (r->base_reg <= reg && reg < r->base_reg + r->num_regs) { |
| 1407 | return r->set_reg(env, mem_buf, reg - r->base_reg); |
| 1408 | } |
| 1409 | } |
| 1410 | return 0; |
| 1411 | } |
| 1412 | |
| 1413 | /* Register a supplemental set of CPU registers. If g_pos is nonzero it |
| 1414 | specifies the first register number and these registers are included in |
| 1415 | a standard "g" packet. Direction is relative to gdb, i.e. get_reg is |
| 1416 | gdb reading a CPU register, and set_reg is gdb modifying a CPU register. |
| 1417 | */ |
| 1418 | |
| 1419 | void gdb_register_coprocessor(CPUState * env, |
| 1420 | gdb_reg_cb get_reg, gdb_reg_cb set_reg, |
| 1421 | int num_regs, const char *xml, int g_pos) |
| 1422 | { |
| 1423 | GDBRegisterState *s; |
| 1424 | GDBRegisterState **p; |
| 1425 | static int last_reg = NUM_CORE_REGS; |
| 1426 | |
| 1427 | s = (GDBRegisterState *)qemu_mallocz(sizeof(GDBRegisterState)); |
| 1428 | s->base_reg = last_reg; |
| 1429 | s->num_regs = num_regs; |
| 1430 | s->get_reg = get_reg; |
| 1431 | s->set_reg = set_reg; |
| 1432 | s->xml = xml; |
| 1433 | p = &env->gdb_regs; |
| 1434 | while (*p) { |
| 1435 | /* Check for duplicates. */ |
| 1436 | if (strcmp((*p)->xml, xml) == 0) |
| 1437 | return; |
| 1438 | p = &(*p)->next; |
| 1439 | } |
| 1440 | /* Add to end of list. */ |
| 1441 | last_reg += num_regs; |
| 1442 | *p = s; |
| 1443 | if (g_pos) { |
| 1444 | if (g_pos != s->base_reg) { |
| 1445 | fprintf(stderr, "Error: Bad gdb register numbering for '%s'\n" |
| 1446 | "Expected %d got %d\n", xml, g_pos, s->base_reg); |
| 1447 | } else { |
| 1448 | num_g_regs = last_reg; |
| 1449 | } |
| 1450 | } |
| 1451 | } |
| 1452 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1453 | #ifndef CONFIG_USER_ONLY |
| 1454 | static const int xlat_gdb_type[] = { |
| 1455 | [GDB_WATCHPOINT_WRITE] = BP_GDB | BP_MEM_WRITE, |
| 1456 | [GDB_WATCHPOINT_READ] = BP_GDB | BP_MEM_READ, |
| 1457 | [GDB_WATCHPOINT_ACCESS] = BP_GDB | BP_MEM_ACCESS, |
| 1458 | }; |
| 1459 | #endif |
| 1460 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1461 | static int gdb_breakpoint_insert(target_ulong addr, target_ulong len, int type) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1462 | { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1463 | CPUState *env; |
| 1464 | int err = 0; |
| 1465 | |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 1466 | if (kvm_enabled()) |
| 1467 | return kvm_insert_breakpoint(gdbserver_state->c_cpu, addr, len, type); |
| 1468 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1469 | switch (type) { |
| 1470 | case GDB_BREAKPOINT_SW: |
| 1471 | case GDB_BREAKPOINT_HW: |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1472 | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1473 | err = cpu_breakpoint_insert(env, addr, BP_GDB, NULL); |
| 1474 | if (err) |
| 1475 | break; |
| 1476 | } |
| 1477 | return err; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1478 | #ifndef CONFIG_USER_ONLY |
| 1479 | case GDB_WATCHPOINT_WRITE: |
| 1480 | case GDB_WATCHPOINT_READ: |
| 1481 | case GDB_WATCHPOINT_ACCESS: |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1482 | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1483 | err = cpu_watchpoint_insert(env, addr, len, xlat_gdb_type[type], |
| 1484 | NULL); |
| 1485 | if (err) |
| 1486 | break; |
| 1487 | } |
| 1488 | return err; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1489 | #endif |
| 1490 | default: |
| 1491 | return -ENOSYS; |
| 1492 | } |
| 1493 | } |
| 1494 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1495 | static int gdb_breakpoint_remove(target_ulong addr, target_ulong len, int type) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1496 | { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1497 | CPUState *env; |
| 1498 | int err = 0; |
| 1499 | |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 1500 | if (kvm_enabled()) |
| 1501 | return kvm_remove_breakpoint(gdbserver_state->c_cpu, addr, len, type); |
| 1502 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1503 | switch (type) { |
| 1504 | case GDB_BREAKPOINT_SW: |
| 1505 | case GDB_BREAKPOINT_HW: |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1506 | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1507 | err = cpu_breakpoint_remove(env, addr, BP_GDB); |
| 1508 | if (err) |
| 1509 | break; |
| 1510 | } |
| 1511 | return err; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1512 | #ifndef CONFIG_USER_ONLY |
| 1513 | case GDB_WATCHPOINT_WRITE: |
| 1514 | case GDB_WATCHPOINT_READ: |
| 1515 | case GDB_WATCHPOINT_ACCESS: |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1516 | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1517 | err = cpu_watchpoint_remove(env, addr, len, xlat_gdb_type[type]); |
| 1518 | if (err) |
| 1519 | break; |
| 1520 | } |
| 1521 | return err; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1522 | #endif |
| 1523 | default: |
| 1524 | return -ENOSYS; |
| 1525 | } |
| 1526 | } |
| 1527 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1528 | static void gdb_breakpoint_remove_all(void) |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1529 | { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1530 | CPUState *env; |
| 1531 | |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 1532 | if (kvm_enabled()) { |
| 1533 | kvm_remove_all_breakpoints(gdbserver_state->c_cpu); |
| 1534 | return; |
| 1535 | } |
| 1536 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1537 | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1538 | cpu_breakpoint_remove_all(env, BP_GDB); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1539 | #ifndef CONFIG_USER_ONLY |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1540 | cpu_watchpoint_remove_all(env, BP_GDB); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1541 | #endif |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1542 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1543 | } |
| 1544 | |
aurel32 | fab9d28 | 2009-04-08 21:29:37 +0000 | [diff] [blame] | 1545 | static void gdb_set_cpu_pc(GDBState *s, target_ulong pc) |
| 1546 | { |
| 1547 | #if defined(TARGET_I386) |
| 1548 | s->c_cpu->eip = pc; |
| 1549 | cpu_synchronize_state(s->c_cpu, 1); |
| 1550 | #elif defined (TARGET_PPC) |
| 1551 | s->c_cpu->nip = pc; |
| 1552 | #elif defined (TARGET_SPARC) |
| 1553 | s->c_cpu->pc = pc; |
| 1554 | s->c_cpu->npc = pc + 4; |
| 1555 | #elif defined (TARGET_ARM) |
| 1556 | s->c_cpu->regs[15] = pc; |
| 1557 | #elif defined (TARGET_SH4) |
| 1558 | s->c_cpu->pc = pc; |
| 1559 | #elif defined (TARGET_MIPS) |
| 1560 | s->c_cpu->active_tc.PC = pc; |
Edgar E. Iglesias | d74d6a9 | 2009-05-20 20:16:31 +0200 | [diff] [blame] | 1561 | #elif defined (TARGET_MICROBLAZE) |
| 1562 | s->c_cpu->sregs[SR_PC] = pc; |
aurel32 | fab9d28 | 2009-04-08 21:29:37 +0000 | [diff] [blame] | 1563 | #elif defined (TARGET_CRIS) |
| 1564 | s->c_cpu->pc = pc; |
| 1565 | #elif defined (TARGET_ALPHA) |
| 1566 | s->c_cpu->pc = pc; |
| 1567 | #endif |
| 1568 | } |
| 1569 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1570 | static int gdb_handle_packet(GDBState *s, const char *line_buf) |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 1571 | { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1572 | CPUState *env; |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 1573 | const char *p; |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1574 | int ch, reg_size, type, res, thread; |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1575 | char buf[MAX_PACKET_LENGTH]; |
| 1576 | uint8_t mem_buf[MAX_PACKET_LENGTH]; |
| 1577 | uint8_t *registers; |
bellard | 9d9754a | 2006-06-25 15:32:37 +0000 | [diff] [blame] | 1578 | target_ulong addr, len; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1579 | |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1580 | #ifdef DEBUG_GDB |
| 1581 | printf("command='%s'\n", line_buf); |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 1582 | #endif |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1583 | p = line_buf; |
| 1584 | ch = *p++; |
| 1585 | switch(ch) { |
| 1586 | case '?': |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 1587 | /* TODO: Make this return the correct value for user-mode. */ |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 1588 | snprintf(buf, sizeof(buf), "T%02xthread:%02x;", GDB_SIGNAL_TRAP, |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1589 | s->c_cpu->cpu_index+1); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1590 | put_packet(s, buf); |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 1591 | /* Remove all the breakpoints when this query is issued, |
| 1592 | * because gdb is doing and initial connect and the state |
| 1593 | * should be cleaned up. |
| 1594 | */ |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1595 | gdb_breakpoint_remove_all(); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1596 | break; |
| 1597 | case 'c': |
| 1598 | if (*p != '\0') { |
bellard | 9d9754a | 2006-06-25 15:32:37 +0000 | [diff] [blame] | 1599 | addr = strtoull(p, (char **)&p, 16); |
aurel32 | fab9d28 | 2009-04-08 21:29:37 +0000 | [diff] [blame] | 1600 | gdb_set_cpu_pc(s, addr); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1601 | } |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 1602 | s->signal = 0; |
edgar_igl | ba70a62 | 2008-03-14 06:10:42 +0000 | [diff] [blame] | 1603 | gdb_continue(s); |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 1604 | return RS_IDLE; |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 1605 | case 'C': |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 1606 | s->signal = gdb_signal_to_target (strtoul(p, (char **)&p, 16)); |
| 1607 | if (s->signal == -1) |
| 1608 | s->signal = 0; |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 1609 | gdb_continue(s); |
| 1610 | return RS_IDLE; |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 1611 | case 'k': |
| 1612 | /* Kill the target */ |
| 1613 | fprintf(stderr, "\nQEMU: Terminated via GDBstub\n"); |
| 1614 | exit(0); |
| 1615 | case 'D': |
| 1616 | /* Detach packet */ |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1617 | gdb_breakpoint_remove_all(); |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 1618 | gdb_continue(s); |
| 1619 | put_packet(s, "OK"); |
| 1620 | break; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1621 | case 's': |
| 1622 | if (*p != '\0') { |
ths | 8fac580 | 2007-07-12 10:05:07 +0000 | [diff] [blame] | 1623 | addr = strtoull(p, (char **)&p, 16); |
aurel32 | fab9d28 | 2009-04-08 21:29:37 +0000 | [diff] [blame] | 1624 | gdb_set_cpu_pc(s, addr); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1625 | } |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1626 | cpu_single_step(s->c_cpu, sstep_flags); |
edgar_igl | ba70a62 | 2008-03-14 06:10:42 +0000 | [diff] [blame] | 1627 | gdb_continue(s); |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 1628 | return RS_IDLE; |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 1629 | case 'F': |
| 1630 | { |
| 1631 | target_ulong ret; |
| 1632 | target_ulong err; |
| 1633 | |
| 1634 | ret = strtoull(p, (char **)&p, 16); |
| 1635 | if (*p == ',') { |
| 1636 | p++; |
| 1637 | err = strtoull(p, (char **)&p, 16); |
| 1638 | } else { |
| 1639 | err = 0; |
| 1640 | } |
| 1641 | if (*p == ',') |
| 1642 | p++; |
| 1643 | type = *p; |
| 1644 | if (gdb_current_syscall_cb) |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1645 | gdb_current_syscall_cb(s->c_cpu, ret, err); |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 1646 | if (type == 'C') { |
| 1647 | put_packet(s, "T02"); |
| 1648 | } else { |
edgar_igl | ba70a62 | 2008-03-14 06:10:42 +0000 | [diff] [blame] | 1649 | gdb_continue(s); |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 1650 | } |
| 1651 | } |
| 1652 | break; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1653 | case 'g': |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 1654 | cpu_synchronize_state(s->g_cpu, 0); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1655 | len = 0; |
| 1656 | for (addr = 0; addr < num_g_regs; addr++) { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1657 | reg_size = gdb_read_register(s->g_cpu, mem_buf + len, addr); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1658 | len += reg_size; |
| 1659 | } |
| 1660 | memtohex(buf, mem_buf, len); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1661 | put_packet(s, buf); |
| 1662 | break; |
| 1663 | case 'G': |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1664 | registers = mem_buf; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1665 | len = strlen(p) / 2; |
| 1666 | hextomem((uint8_t *)registers, p, len); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1667 | for (addr = 0; addr < num_g_regs && len > 0; addr++) { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1668 | reg_size = gdb_write_register(s->g_cpu, registers, addr); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1669 | len -= reg_size; |
| 1670 | registers += reg_size; |
| 1671 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 1672 | cpu_synchronize_state(s->g_cpu, 1); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1673 | put_packet(s, "OK"); |
| 1674 | break; |
| 1675 | case 'm': |
bellard | 9d9754a | 2006-06-25 15:32:37 +0000 | [diff] [blame] | 1676 | addr = strtoull(p, (char **)&p, 16); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1677 | if (*p == ',') |
| 1678 | p++; |
bellard | 9d9754a | 2006-06-25 15:32:37 +0000 | [diff] [blame] | 1679 | len = strtoull(p, NULL, 16); |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1680 | if (cpu_memory_rw_debug(s->g_cpu, addr, mem_buf, len, 0) != 0) { |
bellard | 6f970bd | 2005-12-05 19:55:19 +0000 | [diff] [blame] | 1681 | put_packet (s, "E14"); |
| 1682 | } else { |
| 1683 | memtohex(buf, mem_buf, len); |
| 1684 | put_packet(s, buf); |
| 1685 | } |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1686 | break; |
| 1687 | case 'M': |
bellard | 9d9754a | 2006-06-25 15:32:37 +0000 | [diff] [blame] | 1688 | addr = strtoull(p, (char **)&p, 16); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1689 | if (*p == ',') |
| 1690 | p++; |
bellard | 9d9754a | 2006-06-25 15:32:37 +0000 | [diff] [blame] | 1691 | len = strtoull(p, (char **)&p, 16); |
bellard | b328f87 | 2005-01-17 22:03:16 +0000 | [diff] [blame] | 1692 | if (*p == ':') |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1693 | p++; |
| 1694 | hextomem(mem_buf, p, len); |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1695 | if (cpu_memory_rw_debug(s->g_cpu, addr, mem_buf, len, 1) != 0) |
bellard | 905f20b | 2005-04-26 21:09:55 +0000 | [diff] [blame] | 1696 | put_packet(s, "E14"); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1697 | else |
| 1698 | put_packet(s, "OK"); |
| 1699 | break; |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1700 | case 'p': |
| 1701 | /* Older gdb are really dumb, and don't use 'g' if 'p' is avaialable. |
| 1702 | This works, but can be very slow. Anything new enough to |
| 1703 | understand XML also knows how to use this properly. */ |
| 1704 | if (!gdb_has_xml) |
| 1705 | goto unknown_command; |
| 1706 | addr = strtoull(p, (char **)&p, 16); |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1707 | reg_size = gdb_read_register(s->g_cpu, mem_buf, addr); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1708 | if (reg_size) { |
| 1709 | memtohex(buf, mem_buf, reg_size); |
| 1710 | put_packet(s, buf); |
| 1711 | } else { |
| 1712 | put_packet(s, "E14"); |
| 1713 | } |
| 1714 | break; |
| 1715 | case 'P': |
| 1716 | if (!gdb_has_xml) |
| 1717 | goto unknown_command; |
| 1718 | addr = strtoull(p, (char **)&p, 16); |
| 1719 | if (*p == '=') |
| 1720 | p++; |
| 1721 | reg_size = strlen(p) / 2; |
| 1722 | hextomem(mem_buf, p, reg_size); |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1723 | gdb_write_register(s->g_cpu, mem_buf, addr); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1724 | put_packet(s, "OK"); |
| 1725 | break; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1726 | case 'Z': |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1727 | case 'z': |
| 1728 | type = strtoul(p, (char **)&p, 16); |
| 1729 | if (*p == ',') |
| 1730 | p++; |
bellard | 9d9754a | 2006-06-25 15:32:37 +0000 | [diff] [blame] | 1731 | addr = strtoull(p, (char **)&p, 16); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1732 | if (*p == ',') |
| 1733 | p++; |
bellard | 9d9754a | 2006-06-25 15:32:37 +0000 | [diff] [blame] | 1734 | len = strtoull(p, (char **)&p, 16); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1735 | if (ch == 'Z') |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1736 | res = gdb_breakpoint_insert(addr, len, type); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1737 | else |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1738 | res = gdb_breakpoint_remove(addr, len, type); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1739 | if (res >= 0) |
| 1740 | put_packet(s, "OK"); |
| 1741 | else if (res == -ENOSYS) |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1742 | put_packet(s, ""); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1743 | else |
| 1744 | put_packet(s, "E22"); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1745 | break; |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1746 | case 'H': |
| 1747 | type = *p++; |
| 1748 | thread = strtoull(p, (char **)&p, 16); |
| 1749 | if (thread == -1 || thread == 0) { |
| 1750 | put_packet(s, "OK"); |
| 1751 | break; |
| 1752 | } |
| 1753 | for (env = first_cpu; env != NULL; env = env->next_cpu) |
| 1754 | if (env->cpu_index + 1 == thread) |
| 1755 | break; |
| 1756 | if (env == NULL) { |
| 1757 | put_packet(s, "E22"); |
| 1758 | break; |
| 1759 | } |
| 1760 | switch (type) { |
| 1761 | case 'c': |
| 1762 | s->c_cpu = env; |
| 1763 | put_packet(s, "OK"); |
| 1764 | break; |
| 1765 | case 'g': |
| 1766 | s->g_cpu = env; |
| 1767 | put_packet(s, "OK"); |
| 1768 | break; |
| 1769 | default: |
| 1770 | put_packet(s, "E22"); |
| 1771 | break; |
| 1772 | } |
| 1773 | break; |
| 1774 | case 'T': |
| 1775 | thread = strtoull(p, (char **)&p, 16); |
| 1776 | #ifndef CONFIG_USER_ONLY |
| 1777 | if (thread > 0 && thread < smp_cpus + 1) |
| 1778 | #else |
| 1779 | if (thread == 1) |
| 1780 | #endif |
| 1781 | put_packet(s, "OK"); |
| 1782 | else |
| 1783 | put_packet(s, "E22"); |
| 1784 | break; |
pbrook | 978efd6 | 2006-06-17 18:30:42 +0000 | [diff] [blame] | 1785 | case 'q': |
edgar_igl | 60897d3 | 2008-05-09 08:25:14 +0000 | [diff] [blame] | 1786 | case 'Q': |
| 1787 | /* parse any 'q' packets here */ |
| 1788 | if (!strcmp(p,"qemu.sstepbits")) { |
| 1789 | /* Query Breakpoint bit definitions */ |
blueswir1 | 363a37d | 2008-08-21 17:58:08 +0000 | [diff] [blame] | 1790 | snprintf(buf, sizeof(buf), "ENABLE=%x,NOIRQ=%x,NOTIMER=%x", |
| 1791 | SSTEP_ENABLE, |
| 1792 | SSTEP_NOIRQ, |
| 1793 | SSTEP_NOTIMER); |
edgar_igl | 60897d3 | 2008-05-09 08:25:14 +0000 | [diff] [blame] | 1794 | put_packet(s, buf); |
| 1795 | break; |
| 1796 | } else if (strncmp(p,"qemu.sstep",10) == 0) { |
| 1797 | /* Display or change the sstep_flags */ |
| 1798 | p += 10; |
| 1799 | if (*p != '=') { |
| 1800 | /* Display current setting */ |
blueswir1 | 363a37d | 2008-08-21 17:58:08 +0000 | [diff] [blame] | 1801 | snprintf(buf, sizeof(buf), "0x%x", sstep_flags); |
edgar_igl | 60897d3 | 2008-05-09 08:25:14 +0000 | [diff] [blame] | 1802 | put_packet(s, buf); |
| 1803 | break; |
| 1804 | } |
| 1805 | p++; |
| 1806 | type = strtoul(p, (char **)&p, 16); |
| 1807 | sstep_flags = type; |
| 1808 | put_packet(s, "OK"); |
| 1809 | break; |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1810 | } else if (strcmp(p,"C") == 0) { |
| 1811 | /* "Current thread" remains vague in the spec, so always return |
| 1812 | * the first CPU (gdb returns the first thread). */ |
| 1813 | put_packet(s, "QC1"); |
| 1814 | break; |
| 1815 | } else if (strcmp(p,"fThreadInfo") == 0) { |
| 1816 | s->query_cpu = first_cpu; |
| 1817 | goto report_cpuinfo; |
| 1818 | } else if (strcmp(p,"sThreadInfo") == 0) { |
| 1819 | report_cpuinfo: |
| 1820 | if (s->query_cpu) { |
| 1821 | snprintf(buf, sizeof(buf), "m%x", s->query_cpu->cpu_index+1); |
| 1822 | put_packet(s, buf); |
| 1823 | s->query_cpu = s->query_cpu->next_cpu; |
| 1824 | } else |
| 1825 | put_packet(s, "l"); |
| 1826 | break; |
| 1827 | } else if (strncmp(p,"ThreadExtraInfo,", 16) == 0) { |
| 1828 | thread = strtoull(p+16, (char **)&p, 16); |
| 1829 | for (env = first_cpu; env != NULL; env = env->next_cpu) |
| 1830 | if (env->cpu_index + 1 == thread) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 1831 | cpu_synchronize_state(env, 0); |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1832 | len = snprintf((char *)mem_buf, sizeof(mem_buf), |
| 1833 | "CPU#%d [%s]", env->cpu_index, |
| 1834 | env->halted ? "halted " : "running"); |
| 1835 | memtohex(buf, mem_buf, len); |
| 1836 | put_packet(s, buf); |
| 1837 | break; |
| 1838 | } |
| 1839 | break; |
edgar_igl | 60897d3 | 2008-05-09 08:25:14 +0000 | [diff] [blame] | 1840 | } |
blueswir1 | 0b8a988 | 2009-03-07 10:51:36 +0000 | [diff] [blame] | 1841 | #ifdef CONFIG_USER_ONLY |
edgar_igl | 60897d3 | 2008-05-09 08:25:14 +0000 | [diff] [blame] | 1842 | else if (strncmp(p, "Offsets", 7) == 0) { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1843 | TaskState *ts = s->c_cpu->opaque; |
pbrook | 978efd6 | 2006-06-17 18:30:42 +0000 | [diff] [blame] | 1844 | |
blueswir1 | 363a37d | 2008-08-21 17:58:08 +0000 | [diff] [blame] | 1845 | snprintf(buf, sizeof(buf), |
| 1846 | "Text=" TARGET_ABI_FMT_lx ";Data=" TARGET_ABI_FMT_lx |
| 1847 | ";Bss=" TARGET_ABI_FMT_lx, |
| 1848 | ts->info->code_offset, |
| 1849 | ts->info->data_offset, |
| 1850 | ts->info->data_offset); |
pbrook | 978efd6 | 2006-06-17 18:30:42 +0000 | [diff] [blame] | 1851 | put_packet(s, buf); |
| 1852 | break; |
| 1853 | } |
blueswir1 | 0b8a988 | 2009-03-07 10:51:36 +0000 | [diff] [blame] | 1854 | #else /* !CONFIG_USER_ONLY */ |
aliguori | 8a34a0f | 2009-03-05 23:01:55 +0000 | [diff] [blame] | 1855 | else if (strncmp(p, "Rcmd,", 5) == 0) { |
| 1856 | int len = strlen(p + 5); |
| 1857 | |
| 1858 | if ((len % 2) != 0) { |
| 1859 | put_packet(s, "E01"); |
| 1860 | break; |
| 1861 | } |
| 1862 | hextomem(mem_buf, p + 5, len); |
| 1863 | len = len / 2; |
| 1864 | mem_buf[len++] = 0; |
| 1865 | qemu_chr_read(s->mon_chr, mem_buf, len); |
| 1866 | put_packet(s, "OK"); |
| 1867 | break; |
| 1868 | } |
blueswir1 | 0b8a988 | 2009-03-07 10:51:36 +0000 | [diff] [blame] | 1869 | #endif /* !CONFIG_USER_ONLY */ |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1870 | if (strncmp(p, "Supported", 9) == 0) { |
blueswir1 | 5b3715b | 2008-10-25 11:18:12 +0000 | [diff] [blame] | 1871 | snprintf(buf, sizeof(buf), "PacketSize=%x", MAX_PACKET_LENGTH); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1872 | #ifdef GDB_CORE_XML |
blueswir1 | 2dc766d | 2009-04-13 16:06:19 +0000 | [diff] [blame] | 1873 | pstrcat(buf, sizeof(buf), ";qXfer:features:read+"); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1874 | #endif |
| 1875 | put_packet(s, buf); |
| 1876 | break; |
| 1877 | } |
| 1878 | #ifdef GDB_CORE_XML |
| 1879 | if (strncmp(p, "Xfer:features:read:", 19) == 0) { |
| 1880 | const char *xml; |
| 1881 | target_ulong total_len; |
| 1882 | |
| 1883 | gdb_has_xml = 1; |
| 1884 | p += 19; |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1885 | xml = get_feature_xml(p, &p); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1886 | if (!xml) { |
blueswir1 | 5b3715b | 2008-10-25 11:18:12 +0000 | [diff] [blame] | 1887 | snprintf(buf, sizeof(buf), "E00"); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1888 | put_packet(s, buf); |
| 1889 | break; |
| 1890 | } |
| 1891 | |
| 1892 | if (*p == ':') |
| 1893 | p++; |
| 1894 | addr = strtoul(p, (char **)&p, 16); |
| 1895 | if (*p == ',') |
| 1896 | p++; |
| 1897 | len = strtoul(p, (char **)&p, 16); |
| 1898 | |
| 1899 | total_len = strlen(xml); |
| 1900 | if (addr > total_len) { |
blueswir1 | 5b3715b | 2008-10-25 11:18:12 +0000 | [diff] [blame] | 1901 | snprintf(buf, sizeof(buf), "E00"); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1902 | put_packet(s, buf); |
| 1903 | break; |
| 1904 | } |
| 1905 | if (len > (MAX_PACKET_LENGTH - 5) / 2) |
| 1906 | len = (MAX_PACKET_LENGTH - 5) / 2; |
| 1907 | if (len < total_len - addr) { |
| 1908 | buf[0] = 'm'; |
| 1909 | len = memtox(buf + 1, xml + addr, len); |
| 1910 | } else { |
| 1911 | buf[0] = 'l'; |
| 1912 | len = memtox(buf + 1, xml + addr, total_len - addr); |
| 1913 | } |
| 1914 | put_packet_binary(s, buf, len + 1); |
| 1915 | break; |
| 1916 | } |
| 1917 | #endif |
| 1918 | /* Unrecognised 'q' command. */ |
| 1919 | goto unknown_command; |
| 1920 | |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1921 | default: |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 1922 | unknown_command: |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1923 | /* put empty packet */ |
| 1924 | buf[0] = '\0'; |
| 1925 | put_packet(s, buf); |
| 1926 | break; |
| 1927 | } |
| 1928 | return RS_IDLE; |
| 1929 | } |
| 1930 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1931 | void gdb_set_stop_cpu(CPUState *env) |
| 1932 | { |
| 1933 | gdbserver_state->c_cpu = env; |
| 1934 | gdbserver_state->g_cpu = env; |
| 1935 | } |
| 1936 | |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 1937 | #ifndef CONFIG_USER_ONLY |
aliguori | 9781e04 | 2009-01-22 17:15:29 +0000 | [diff] [blame] | 1938 | static void gdb_vm_state_change(void *opaque, int running, int reason) |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1939 | { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1940 | GDBState *s = gdbserver_state; |
| 1941 | CPUState *env = s->c_cpu; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1942 | char buf[256]; |
aliguori | d6fc1b3 | 2008-11-18 19:55:44 +0000 | [diff] [blame] | 1943 | const char *type; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1944 | int ret; |
| 1945 | |
aliguori | 9781e04 | 2009-01-22 17:15:29 +0000 | [diff] [blame] | 1946 | if (running || (reason != EXCP_DEBUG && reason != EXCP_INTERRUPT) || |
aliguori | 36556b2 | 2009-03-28 18:05:53 +0000 | [diff] [blame] | 1947 | s->state == RS_INACTIVE || s->state == RS_SYSCALL) |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 1948 | return; |
| 1949 | |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1950 | /* disable single step if it was enable */ |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1951 | cpu_single_step(env, 0); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1952 | |
bellard | e80cfcf | 2004-12-19 23:18:01 +0000 | [diff] [blame] | 1953 | if (reason == EXCP_DEBUG) { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1954 | if (env->watchpoint_hit) { |
| 1955 | switch (env->watchpoint_hit->flags & BP_MEM_ACCESS) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1956 | case BP_MEM_READ: |
aliguori | d6fc1b3 | 2008-11-18 19:55:44 +0000 | [diff] [blame] | 1957 | type = "r"; |
| 1958 | break; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1959 | case BP_MEM_ACCESS: |
aliguori | d6fc1b3 | 2008-11-18 19:55:44 +0000 | [diff] [blame] | 1960 | type = "a"; |
| 1961 | break; |
| 1962 | default: |
| 1963 | type = ""; |
| 1964 | break; |
| 1965 | } |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1966 | snprintf(buf, sizeof(buf), |
| 1967 | "T%02xthread:%02x;%swatch:" TARGET_FMT_lx ";", |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 1968 | GDB_SIGNAL_TRAP, env->cpu_index+1, type, |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1969 | env->watchpoint_hit->vaddr); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1970 | put_packet(s, buf); |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1971 | env->watchpoint_hit = NULL; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1972 | return; |
| 1973 | } |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1974 | tb_flush(env); |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 1975 | ret = GDB_SIGNAL_TRAP; |
bellard | bbeb7b5 | 2006-04-23 18:42:15 +0000 | [diff] [blame] | 1976 | } else { |
aliguori | 9781e04 | 2009-01-22 17:15:29 +0000 | [diff] [blame] | 1977 | ret = GDB_SIGNAL_INT; |
bellard | bbeb7b5 | 2006-04-23 18:42:15 +0000 | [diff] [blame] | 1978 | } |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1979 | snprintf(buf, sizeof(buf), "T%02xthread:%02x;", ret, env->cpu_index+1); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1980 | put_packet(s, buf); |
| 1981 | } |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 1982 | #endif |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 1983 | |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 1984 | /* Send a gdb syscall request. |
| 1985 | This accepts limited printf-style format specifiers, specifically: |
pbrook | a87295e | 2007-05-26 15:09:38 +0000 | [diff] [blame] | 1986 | %x - target_ulong argument printed in hex. |
| 1987 | %lx - 64-bit argument printed in hex. |
| 1988 | %s - string pointer (target_ulong) and length (int) pair. */ |
blueswir1 | 7ccfb2e | 2008-09-14 06:45:34 +0000 | [diff] [blame] | 1989 | void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...) |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 1990 | { |
| 1991 | va_list va; |
| 1992 | char buf[256]; |
| 1993 | char *p; |
| 1994 | target_ulong addr; |
pbrook | a87295e | 2007-05-26 15:09:38 +0000 | [diff] [blame] | 1995 | uint64_t i64; |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 1996 | GDBState *s; |
| 1997 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 1998 | s = gdbserver_state; |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 1999 | if (!s) |
| 2000 | return; |
| 2001 | gdb_current_syscall_cb = cb; |
| 2002 | s->state = RS_SYSCALL; |
| 2003 | #ifndef CONFIG_USER_ONLY |
| 2004 | vm_stop(EXCP_DEBUG); |
| 2005 | #endif |
| 2006 | s->state = RS_IDLE; |
| 2007 | va_start(va, fmt); |
| 2008 | p = buf; |
| 2009 | *(p++) = 'F'; |
| 2010 | while (*fmt) { |
| 2011 | if (*fmt == '%') { |
| 2012 | fmt++; |
| 2013 | switch (*fmt++) { |
| 2014 | case 'x': |
| 2015 | addr = va_arg(va, target_ulong); |
blueswir1 | 363a37d | 2008-08-21 17:58:08 +0000 | [diff] [blame] | 2016 | p += snprintf(p, &buf[sizeof(buf)] - p, TARGET_FMT_lx, addr); |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2017 | break; |
pbrook | a87295e | 2007-05-26 15:09:38 +0000 | [diff] [blame] | 2018 | case 'l': |
| 2019 | if (*(fmt++) != 'x') |
| 2020 | goto bad_format; |
| 2021 | i64 = va_arg(va, uint64_t); |
blueswir1 | 363a37d | 2008-08-21 17:58:08 +0000 | [diff] [blame] | 2022 | p += snprintf(p, &buf[sizeof(buf)] - p, "%" PRIx64, i64); |
pbrook | a87295e | 2007-05-26 15:09:38 +0000 | [diff] [blame] | 2023 | break; |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2024 | case 's': |
| 2025 | addr = va_arg(va, target_ulong); |
blueswir1 | 363a37d | 2008-08-21 17:58:08 +0000 | [diff] [blame] | 2026 | p += snprintf(p, &buf[sizeof(buf)] - p, TARGET_FMT_lx "/%x", |
| 2027 | addr, va_arg(va, int)); |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2028 | break; |
| 2029 | default: |
pbrook | a87295e | 2007-05-26 15:09:38 +0000 | [diff] [blame] | 2030 | bad_format: |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2031 | fprintf(stderr, "gdbstub: Bad syscall format string '%s'\n", |
| 2032 | fmt - 1); |
| 2033 | break; |
| 2034 | } |
| 2035 | } else { |
| 2036 | *(p++) = *(fmt++); |
| 2037 | } |
| 2038 | } |
pbrook | 8a93e02 | 2007-08-06 13:19:15 +0000 | [diff] [blame] | 2039 | *p = 0; |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2040 | va_end(va); |
| 2041 | put_packet(s, buf); |
| 2042 | #ifdef CONFIG_USER_ONLY |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2043 | gdb_handlesig(s->c_cpu, 0); |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2044 | #else |
aurel32 | 3098dba | 2009-03-07 21:28:24 +0000 | [diff] [blame] | 2045 | cpu_exit(s->c_cpu); |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2046 | #endif |
| 2047 | } |
| 2048 | |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 2049 | static void gdb_read_byte(GDBState *s, int ch) |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2050 | { |
| 2051 | int i, csum; |
ths | 60fe76f | 2007-12-16 03:02:09 +0000 | [diff] [blame] | 2052 | uint8_t reply; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2053 | |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2054 | #ifndef CONFIG_USER_ONLY |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2055 | if (s->last_packet_len) { |
| 2056 | /* Waiting for a response to the last packet. If we see the start |
| 2057 | of a new command then abandon the previous response. */ |
| 2058 | if (ch == '-') { |
| 2059 | #ifdef DEBUG_GDB |
| 2060 | printf("Got NACK, retransmitting\n"); |
| 2061 | #endif |
ths | ffe8ab8 | 2007-12-16 03:16:05 +0000 | [diff] [blame] | 2062 | put_buffer(s, (uint8_t *)s->last_packet, s->last_packet_len); |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2063 | } |
| 2064 | #ifdef DEBUG_GDB |
| 2065 | else if (ch == '+') |
| 2066 | printf("Got ACK\n"); |
| 2067 | else |
| 2068 | printf("Got '%c' when expecting ACK/NACK\n", ch); |
| 2069 | #endif |
| 2070 | if (ch == '+' || ch == '$') |
| 2071 | s->last_packet_len = 0; |
| 2072 | if (ch != '$') |
| 2073 | return; |
| 2074 | } |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2075 | if (vm_running) { |
| 2076 | /* when the CPU is running, we cannot do anything except stop |
| 2077 | it when receiving a char */ |
| 2078 | vm_stop(EXCP_INTERRUPT); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2079 | } else |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2080 | #endif |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 2081 | { |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2082 | switch(s->state) { |
| 2083 | case RS_IDLE: |
| 2084 | if (ch == '$') { |
| 2085 | s->line_buf_index = 0; |
| 2086 | s->state = RS_GETLINE; |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 2087 | } |
| 2088 | break; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2089 | case RS_GETLINE: |
| 2090 | if (ch == '#') { |
| 2091 | s->state = RS_CHKSUM1; |
| 2092 | } else if (s->line_buf_index >= sizeof(s->line_buf) - 1) { |
| 2093 | s->state = RS_IDLE; |
| 2094 | } else { |
| 2095 | s->line_buf[s->line_buf_index++] = ch; |
| 2096 | } |
| 2097 | break; |
| 2098 | case RS_CHKSUM1: |
| 2099 | s->line_buf[s->line_buf_index] = '\0'; |
| 2100 | s->line_csum = fromhex(ch) << 4; |
| 2101 | s->state = RS_CHKSUM2; |
| 2102 | break; |
| 2103 | case RS_CHKSUM2: |
| 2104 | s->line_csum |= fromhex(ch); |
| 2105 | csum = 0; |
| 2106 | for(i = 0; i < s->line_buf_index; i++) { |
| 2107 | csum += s->line_buf[i]; |
| 2108 | } |
| 2109 | if (s->line_csum != (csum & 0xff)) { |
ths | 60fe76f | 2007-12-16 03:02:09 +0000 | [diff] [blame] | 2110 | reply = '-'; |
| 2111 | put_buffer(s, &reply, 1); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2112 | s->state = RS_IDLE; |
| 2113 | } else { |
ths | 60fe76f | 2007-12-16 03:02:09 +0000 | [diff] [blame] | 2114 | reply = '+'; |
| 2115 | put_buffer(s, &reply, 1); |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2116 | s->state = gdb_handle_packet(s, s->line_buf); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2117 | } |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 2118 | break; |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2119 | default: |
| 2120 | abort(); |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 2121 | } |
| 2122 | } |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2123 | } |
| 2124 | |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2125 | #ifdef CONFIG_USER_ONLY |
| 2126 | int |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 2127 | gdb_queuesig (void) |
| 2128 | { |
| 2129 | GDBState *s; |
| 2130 | |
| 2131 | s = gdbserver_state; |
| 2132 | |
| 2133 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2134 | return 0; |
| 2135 | else |
| 2136 | return 1; |
| 2137 | } |
| 2138 | |
| 2139 | int |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2140 | gdb_handlesig (CPUState *env, int sig) |
| 2141 | { |
| 2142 | GDBState *s; |
| 2143 | char buf[256]; |
| 2144 | int n; |
| 2145 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2146 | s = gdbserver_state; |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 2147 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2148 | return sig; |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2149 | |
| 2150 | /* disable single step if it was enabled */ |
| 2151 | cpu_single_step(env, 0); |
| 2152 | tb_flush(env); |
| 2153 | |
| 2154 | if (sig != 0) |
| 2155 | { |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 2156 | snprintf(buf, sizeof(buf), "S%02x", target_signal_to_gdb (sig)); |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2157 | put_packet(s, buf); |
| 2158 | } |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 2159 | /* put_packet() might have detected that the peer terminated the |
| 2160 | connection. */ |
| 2161 | if (s->fd < 0) |
| 2162 | return sig; |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2163 | |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2164 | sig = 0; |
| 2165 | s->state = RS_IDLE; |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 2166 | s->running_state = 0; |
| 2167 | while (s->running_state == 0) { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2168 | n = read (s->fd, buf, 256); |
| 2169 | if (n > 0) |
| 2170 | { |
| 2171 | int i; |
| 2172 | |
| 2173 | for (i = 0; i < n; i++) |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 2174 | gdb_read_byte (s, buf[i]); |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2175 | } |
| 2176 | else if (n == 0 || errno != EAGAIN) |
| 2177 | { |
| 2178 | /* XXX: Connection closed. Should probably wait for annother |
| 2179 | connection before continuing. */ |
| 2180 | return sig; |
| 2181 | } |
bellard | 4162503 | 2005-04-24 10:07:11 +0000 | [diff] [blame] | 2182 | } |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 2183 | sig = s->signal; |
| 2184 | s->signal = 0; |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2185 | return sig; |
| 2186 | } |
bellard | e900967 | 2005-04-26 20:42:36 +0000 | [diff] [blame] | 2187 | |
| 2188 | /* Tell the remote gdb that the process has exited. */ |
| 2189 | void gdb_exit(CPUState *env, int code) |
| 2190 | { |
| 2191 | GDBState *s; |
| 2192 | char buf[4]; |
| 2193 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2194 | s = gdbserver_state; |
edgar_igl | 1f487ee | 2008-05-17 22:20:53 +0000 | [diff] [blame] | 2195 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2196 | return; |
bellard | e900967 | 2005-04-26 20:42:36 +0000 | [diff] [blame] | 2197 | |
| 2198 | snprintf(buf, sizeof(buf), "W%02x", code); |
| 2199 | put_packet(s, buf); |
| 2200 | } |
| 2201 | |
aurel32 | ca587a8 | 2008-12-18 22:44:13 +0000 | [diff] [blame] | 2202 | /* Tell the remote gdb that the process has exited due to SIG. */ |
| 2203 | void gdb_signalled(CPUState *env, int sig) |
| 2204 | { |
| 2205 | GDBState *s; |
| 2206 | char buf[4]; |
| 2207 | |
| 2208 | s = gdbserver_state; |
| 2209 | if (gdbserver_fd < 0 || s->fd < 0) |
| 2210 | return; |
| 2211 | |
| 2212 | snprintf(buf, sizeof(buf), "X%02x", target_signal_to_gdb (sig)); |
| 2213 | put_packet(s, buf); |
| 2214 | } |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 2215 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2216 | static void gdb_accept(void) |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2217 | { |
| 2218 | GDBState *s; |
| 2219 | struct sockaddr_in sockaddr; |
| 2220 | socklen_t len; |
| 2221 | int val, fd; |
| 2222 | |
| 2223 | for(;;) { |
| 2224 | len = sizeof(sockaddr); |
| 2225 | fd = accept(gdbserver_fd, (struct sockaddr *)&sockaddr, &len); |
| 2226 | if (fd < 0 && errno != EINTR) { |
| 2227 | perror("accept"); |
| 2228 | return; |
| 2229 | } else if (fd >= 0) { |
| 2230 | break; |
| 2231 | } |
| 2232 | } |
| 2233 | |
| 2234 | /* set short latency */ |
| 2235 | val = 1; |
bellard | 8f447cc | 2006-06-14 15:21:14 +0000 | [diff] [blame] | 2236 | setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2237 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2238 | s = qemu_mallocz(sizeof(GDBState)); |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2239 | s->c_cpu = first_cpu; |
| 2240 | s->g_cpu = first_cpu; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2241 | s->fd = fd; |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 2242 | gdb_has_xml = 0; |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2243 | |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2244 | gdbserver_state = s; |
pbrook | a2d1eba | 2007-01-28 03:10:55 +0000 | [diff] [blame] | 2245 | |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2246 | fcntl(fd, F_SETFL, O_NONBLOCK); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2247 | } |
| 2248 | |
| 2249 | static int gdbserver_open(int port) |
| 2250 | { |
| 2251 | struct sockaddr_in sockaddr; |
| 2252 | int fd, val, ret; |
| 2253 | |
| 2254 | fd = socket(PF_INET, SOCK_STREAM, 0); |
| 2255 | if (fd < 0) { |
| 2256 | perror("socket"); |
| 2257 | return -1; |
| 2258 | } |
| 2259 | |
| 2260 | /* allow fast reuse */ |
| 2261 | val = 1; |
bellard | 8f447cc | 2006-06-14 15:21:14 +0000 | [diff] [blame] | 2262 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&val, sizeof(val)); |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2263 | |
| 2264 | sockaddr.sin_family = AF_INET; |
| 2265 | sockaddr.sin_port = htons(port); |
| 2266 | sockaddr.sin_addr.s_addr = 0; |
| 2267 | ret = bind(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)); |
| 2268 | if (ret < 0) { |
| 2269 | perror("bind"); |
| 2270 | return -1; |
| 2271 | } |
| 2272 | ret = listen(fd, 0); |
| 2273 | if (ret < 0) { |
| 2274 | perror("listen"); |
| 2275 | return -1; |
| 2276 | } |
bellard | 858693c | 2004-03-31 18:52:07 +0000 | [diff] [blame] | 2277 | return fd; |
| 2278 | } |
| 2279 | |
| 2280 | int gdbserver_start(int port) |
| 2281 | { |
| 2282 | gdbserver_fd = gdbserver_open(port); |
| 2283 | if (gdbserver_fd < 0) |
| 2284 | return -1; |
| 2285 | /* accept connections */ |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2286 | gdb_accept(); |
bellard | b4608c0 | 2003-06-27 17:34:32 +0000 | [diff] [blame] | 2287 | return 0; |
| 2288 | } |
aurel32 | 2b1319c | 2008-12-18 22:44:04 +0000 | [diff] [blame] | 2289 | |
| 2290 | /* Disable gdb stub for child processes. */ |
| 2291 | void gdbserver_fork(CPUState *env) |
| 2292 | { |
| 2293 | GDBState *s = gdbserver_state; |
edgar_igl | 9f6164d | 2009-01-07 10:22:28 +0000 | [diff] [blame] | 2294 | if (gdbserver_fd < 0 || s->fd < 0) |
aurel32 | 2b1319c | 2008-12-18 22:44:04 +0000 | [diff] [blame] | 2295 | return; |
| 2296 | close(s->fd); |
| 2297 | s->fd = -1; |
| 2298 | cpu_breakpoint_remove_all(env, BP_GDB); |
| 2299 | cpu_watchpoint_remove_all(env, BP_GDB); |
| 2300 | } |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2301 | #else |
ths | aa1f17c | 2007-07-11 22:48:58 +0000 | [diff] [blame] | 2302 | static int gdb_chr_can_receive(void *opaque) |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2303 | { |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 2304 | /* We can handle an arbitrarily large amount of data. |
| 2305 | Pick the maximum packet size, which is as good as anything. */ |
| 2306 | return MAX_PACKET_LENGTH; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2307 | } |
| 2308 | |
ths | aa1f17c | 2007-07-11 22:48:58 +0000 | [diff] [blame] | 2309 | static void gdb_chr_receive(void *opaque, const uint8_t *buf, int size) |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2310 | { |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2311 | int i; |
| 2312 | |
| 2313 | for (i = 0; i < size; i++) { |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2314 | gdb_read_byte(gdbserver_state, buf[i]); |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2315 | } |
| 2316 | } |
| 2317 | |
| 2318 | static void gdb_chr_event(void *opaque, int event) |
| 2319 | { |
| 2320 | switch (event) { |
| 2321 | case CHR_EVENT_RESET: |
| 2322 | vm_stop(EXCP_INTERRUPT); |
pbrook | 56aebc8 | 2008-10-11 17:55:29 +0000 | [diff] [blame] | 2323 | gdb_has_xml = 0; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2324 | break; |
| 2325 | default: |
| 2326 | break; |
| 2327 | } |
| 2328 | } |
| 2329 | |
aliguori | 8a34a0f | 2009-03-05 23:01:55 +0000 | [diff] [blame] | 2330 | static void gdb_monitor_output(GDBState *s, const char *msg, int len) |
| 2331 | { |
| 2332 | char buf[MAX_PACKET_LENGTH]; |
| 2333 | |
| 2334 | buf[0] = 'O'; |
| 2335 | if (len > (MAX_PACKET_LENGTH/2) - 1) |
| 2336 | len = (MAX_PACKET_LENGTH/2) - 1; |
| 2337 | memtohex(buf + 1, (uint8_t *)msg, len); |
| 2338 | put_packet(s, buf); |
| 2339 | } |
| 2340 | |
| 2341 | static int gdb_monitor_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2342 | { |
| 2343 | const char *p = (const char *)buf; |
| 2344 | int max_sz; |
| 2345 | |
| 2346 | max_sz = (sizeof(gdbserver_state->last_packet) - 2) / 2; |
| 2347 | for (;;) { |
| 2348 | if (len <= max_sz) { |
| 2349 | gdb_monitor_output(gdbserver_state, p, len); |
| 2350 | break; |
| 2351 | } |
| 2352 | gdb_monitor_output(gdbserver_state, p, max_sz); |
| 2353 | p += max_sz; |
| 2354 | len -= max_sz; |
| 2355 | } |
| 2356 | return len; |
| 2357 | } |
| 2358 | |
aliguori | 59030a8 | 2009-04-05 18:43:41 +0000 | [diff] [blame] | 2359 | #ifndef _WIN32 |
| 2360 | static void gdb_sigterm_handler(int signal) |
| 2361 | { |
| 2362 | if (vm_running) |
| 2363 | vm_stop(EXCP_INTERRUPT); |
| 2364 | } |
| 2365 | #endif |
| 2366 | |
| 2367 | int gdbserver_start(const char *device) |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2368 | { |
| 2369 | GDBState *s; |
aliguori | 59030a8 | 2009-04-05 18:43:41 +0000 | [diff] [blame] | 2370 | char gdbstub_device_name[128]; |
aliguori | 36556b2 | 2009-03-28 18:05:53 +0000 | [diff] [blame] | 2371 | CharDriverState *chr = NULL; |
| 2372 | CharDriverState *mon_chr; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2373 | |
aliguori | 59030a8 | 2009-04-05 18:43:41 +0000 | [diff] [blame] | 2374 | if (!device) |
| 2375 | return -1; |
| 2376 | if (strcmp(device, "none") != 0) { |
| 2377 | if (strstart(device, "tcp:", NULL)) { |
| 2378 | /* enforce required TCP attributes */ |
| 2379 | snprintf(gdbstub_device_name, sizeof(gdbstub_device_name), |
| 2380 | "%s,nowait,nodelay,server", device); |
| 2381 | device = gdbstub_device_name; |
aliguori | 36556b2 | 2009-03-28 18:05:53 +0000 | [diff] [blame] | 2382 | } |
aliguori | 59030a8 | 2009-04-05 18:43:41 +0000 | [diff] [blame] | 2383 | #ifndef _WIN32 |
| 2384 | else if (strcmp(device, "stdio") == 0) { |
| 2385 | struct sigaction act; |
pbrook | cfc3475 | 2007-02-22 01:48:01 +0000 | [diff] [blame] | 2386 | |
aliguori | 59030a8 | 2009-04-05 18:43:41 +0000 | [diff] [blame] | 2387 | memset(&act, 0, sizeof(act)); |
| 2388 | act.sa_handler = gdb_sigterm_handler; |
| 2389 | sigaction(SIGINT, &act, NULL); |
| 2390 | } |
| 2391 | #endif |
| 2392 | chr = qemu_chr_open("gdb", device, NULL); |
aliguori | 36556b2 | 2009-03-28 18:05:53 +0000 | [diff] [blame] | 2393 | if (!chr) |
| 2394 | return -1; |
| 2395 | |
| 2396 | qemu_chr_add_handlers(chr, gdb_chr_can_receive, gdb_chr_receive, |
| 2397 | gdb_chr_event, NULL); |
pbrook | cfc3475 | 2007-02-22 01:48:01 +0000 | [diff] [blame] | 2398 | } |
| 2399 | |
aliguori | 36556b2 | 2009-03-28 18:05:53 +0000 | [diff] [blame] | 2400 | s = gdbserver_state; |
| 2401 | if (!s) { |
| 2402 | s = qemu_mallocz(sizeof(GDBState)); |
| 2403 | gdbserver_state = s; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2404 | |
aliguori | 36556b2 | 2009-03-28 18:05:53 +0000 | [diff] [blame] | 2405 | qemu_add_vm_change_state_handler(gdb_vm_state_change, NULL); |
| 2406 | |
| 2407 | /* Initialize a monitor terminal for gdb */ |
| 2408 | mon_chr = qemu_mallocz(sizeof(*mon_chr)); |
| 2409 | mon_chr->chr_write = gdb_monitor_write; |
| 2410 | monitor_init(mon_chr, 0); |
| 2411 | } else { |
| 2412 | if (s->chr) |
| 2413 | qemu_chr_close(s->chr); |
| 2414 | mon_chr = s->mon_chr; |
| 2415 | memset(s, 0, sizeof(GDBState)); |
| 2416 | } |
aliguori | 880a757 | 2008-11-18 20:30:24 +0000 | [diff] [blame] | 2417 | s->c_cpu = first_cpu; |
| 2418 | s->g_cpu = first_cpu; |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2419 | s->chr = chr; |
aliguori | 36556b2 | 2009-03-28 18:05:53 +0000 | [diff] [blame] | 2420 | s->state = chr ? RS_IDLE : RS_INACTIVE; |
| 2421 | s->mon_chr = mon_chr; |
aliguori | 8a34a0f | 2009-03-05 23:01:55 +0000 | [diff] [blame] | 2422 | |
pbrook | 4046d91 | 2007-01-28 01:53:16 +0000 | [diff] [blame] | 2423 | return 0; |
| 2424 | } |
| 2425 | #endif |