root / gdbstub.c @ 89fc88da
History | View | Annotate | Download (34.4 kB)
1 | b4608c04 | bellard | /*
|
---|---|---|---|
2 | b4608c04 | bellard | * gdb server stub
|
3 | 5fafdf24 | ths | *
|
4 | 3475187d | bellard | * Copyright (c) 2003-2005 Fabrice Bellard
|
5 | b4608c04 | bellard | *
|
6 | b4608c04 | bellard | * This library is free software; you can redistribute it and/or
|
7 | b4608c04 | bellard | * modify it under the terms of the GNU Lesser General Public
|
8 | b4608c04 | bellard | * License as published by the Free Software Foundation; either
|
9 | b4608c04 | bellard | * version 2 of the License, or (at your option) any later version.
|
10 | b4608c04 | bellard | *
|
11 | b4608c04 | bellard | * This library is distributed in the hope that it will be useful,
|
12 | b4608c04 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | b4608c04 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | b4608c04 | bellard | * Lesser General Public License for more details.
|
15 | b4608c04 | bellard | *
|
16 | b4608c04 | bellard | * You should have received a copy of the GNU Lesser General Public
|
17 | b4608c04 | bellard | * License along with this library; if not, write to the Free Software
|
18 | b4608c04 | bellard | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
19 | b4608c04 | bellard | */
|
20 | 978efd6a | pbrook | #include "config.h" |
21 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
|
22 | 1fddef4b | bellard | #include <stdlib.h> |
23 | 1fddef4b | bellard | #include <stdio.h> |
24 | 1fddef4b | bellard | #include <stdarg.h> |
25 | 1fddef4b | bellard | #include <string.h> |
26 | 1fddef4b | bellard | #include <errno.h> |
27 | 1fddef4b | bellard | #include <unistd.h> |
28 | 978efd6a | pbrook | #include <fcntl.h> |
29 | 1fddef4b | bellard | |
30 | 1fddef4b | bellard | #include "qemu.h" |
31 | 1fddef4b | bellard | #else
|
32 | 67b915a5 | bellard | #include "vl.h" |
33 | 1fddef4b | bellard | #endif
|
34 | 67b915a5 | bellard | |
35 | 8f447cc7 | bellard | #include "qemu_socket.h" |
36 | 8f447cc7 | bellard | #ifdef _WIN32
|
37 | 8f447cc7 | bellard | /* XXX: these constants may be independent of the host ones even for Unix */
|
38 | 8f447cc7 | bellard | #ifndef SIGTRAP
|
39 | 8f447cc7 | bellard | #define SIGTRAP 5 |
40 | 8f447cc7 | bellard | #endif
|
41 | 8f447cc7 | bellard | #ifndef SIGINT
|
42 | 8f447cc7 | bellard | #define SIGINT 2 |
43 | 8f447cc7 | bellard | #endif
|
44 | 8f447cc7 | bellard | #else
|
45 | b4608c04 | bellard | #include <signal.h> |
46 | 8f447cc7 | bellard | #endif
|
47 | b4608c04 | bellard | |
48 | 4abe615b | bellard | //#define DEBUG_GDB
|
49 | b4608c04 | bellard | |
50 | 858693c6 | bellard | enum RSState {
|
51 | 858693c6 | bellard | RS_IDLE, |
52 | 858693c6 | bellard | RS_GETLINE, |
53 | 858693c6 | bellard | RS_CHKSUM1, |
54 | 858693c6 | bellard | RS_CHKSUM2, |
55 | a2d1ebaf | pbrook | RS_SYSCALL, |
56 | 858693c6 | bellard | }; |
57 | 858693c6 | bellard | typedef struct GDBState { |
58 | 6a00d601 | bellard | CPUState *env; /* current CPU */
|
59 | 41625033 | bellard | enum RSState state; /* parsing state */ |
60 | 858693c6 | bellard | char line_buf[4096]; |
61 | 858693c6 | bellard | int line_buf_index;
|
62 | 858693c6 | bellard | int line_csum;
|
63 | 4046d913 | pbrook | char last_packet[4100]; |
64 | 4046d913 | pbrook | int last_packet_len;
|
65 | 41625033 | bellard | #ifdef CONFIG_USER_ONLY
|
66 | 4046d913 | pbrook | int fd;
|
67 | 41625033 | bellard | int running_state;
|
68 | 4046d913 | pbrook | #else
|
69 | 4046d913 | pbrook | CharDriverState *chr; |
70 | 41625033 | bellard | #endif
|
71 | 858693c6 | bellard | } GDBState; |
72 | b4608c04 | bellard | |
73 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
|
74 | 4046d913 | pbrook | /* XXX: This is not thread safe. Do we care? */
|
75 | 4046d913 | pbrook | static int gdbserver_fd = -1; |
76 | 4046d913 | pbrook | |
77 | 1fddef4b | bellard | /* XXX: remove this hack. */
|
78 | 1fddef4b | bellard | static GDBState gdbserver_state;
|
79 | 1fddef4b | bellard | |
80 | 858693c6 | bellard | static int get_char(GDBState *s) |
81 | b4608c04 | bellard | { |
82 | b4608c04 | bellard | uint8_t ch; |
83 | b4608c04 | bellard | int ret;
|
84 | b4608c04 | bellard | |
85 | b4608c04 | bellard | for(;;) {
|
86 | 8f447cc7 | bellard | ret = recv(s->fd, &ch, 1, 0); |
87 | b4608c04 | bellard | if (ret < 0) { |
88 | b4608c04 | bellard | if (errno != EINTR && errno != EAGAIN)
|
89 | b4608c04 | bellard | return -1; |
90 | b4608c04 | bellard | } else if (ret == 0) { |
91 | b4608c04 | bellard | return -1; |
92 | b4608c04 | bellard | } else {
|
93 | b4608c04 | bellard | break;
|
94 | b4608c04 | bellard | } |
95 | b4608c04 | bellard | } |
96 | b4608c04 | bellard | return ch;
|
97 | b4608c04 | bellard | } |
98 | 4046d913 | pbrook | #endif
|
99 | b4608c04 | bellard | |
100 | a2d1ebaf | pbrook | /* GDB stub state for use by semihosting syscalls. */
|
101 | a2d1ebaf | pbrook | static GDBState *gdb_syscall_state;
|
102 | a2d1ebaf | pbrook | static gdb_syscall_complete_cb gdb_current_syscall_cb;
|
103 | a2d1ebaf | pbrook | |
104 | a2d1ebaf | pbrook | enum {
|
105 | a2d1ebaf | pbrook | GDB_SYS_UNKNOWN, |
106 | a2d1ebaf | pbrook | GDB_SYS_ENABLED, |
107 | a2d1ebaf | pbrook | GDB_SYS_DISABLED, |
108 | a2d1ebaf | pbrook | } gdb_syscall_mode; |
109 | a2d1ebaf | pbrook | |
110 | a2d1ebaf | pbrook | /* If gdb is connected when the first semihosting syscall occurs then use
|
111 | a2d1ebaf | pbrook | remote gdb syscalls. Otherwise use native file IO. */
|
112 | a2d1ebaf | pbrook | int use_gdb_syscalls(void) |
113 | a2d1ebaf | pbrook | { |
114 | a2d1ebaf | pbrook | if (gdb_syscall_mode == GDB_SYS_UNKNOWN) {
|
115 | a2d1ebaf | pbrook | gdb_syscall_mode = (gdb_syscall_state ? GDB_SYS_ENABLED |
116 | a2d1ebaf | pbrook | : GDB_SYS_DISABLED); |
117 | a2d1ebaf | pbrook | } |
118 | a2d1ebaf | pbrook | return gdb_syscall_mode == GDB_SYS_ENABLED;
|
119 | a2d1ebaf | pbrook | } |
120 | a2d1ebaf | pbrook | |
121 | 858693c6 | bellard | static void put_buffer(GDBState *s, const uint8_t *buf, int len) |
122 | b4608c04 | bellard | { |
123 | 4046d913 | pbrook | #ifdef CONFIG_USER_ONLY
|
124 | b4608c04 | bellard | int ret;
|
125 | b4608c04 | bellard | |
126 | b4608c04 | bellard | while (len > 0) { |
127 | 8f447cc7 | bellard | ret = send(s->fd, buf, len, 0);
|
128 | b4608c04 | bellard | if (ret < 0) { |
129 | b4608c04 | bellard | if (errno != EINTR && errno != EAGAIN)
|
130 | b4608c04 | bellard | return;
|
131 | b4608c04 | bellard | } else {
|
132 | b4608c04 | bellard | buf += ret; |
133 | b4608c04 | bellard | len -= ret; |
134 | b4608c04 | bellard | } |
135 | b4608c04 | bellard | } |
136 | 4046d913 | pbrook | #else
|
137 | 4046d913 | pbrook | qemu_chr_write(s->chr, buf, len); |
138 | 4046d913 | pbrook | #endif
|
139 | b4608c04 | bellard | } |
140 | b4608c04 | bellard | |
141 | b4608c04 | bellard | static inline int fromhex(int v) |
142 | b4608c04 | bellard | { |
143 | b4608c04 | bellard | if (v >= '0' && v <= '9') |
144 | b4608c04 | bellard | return v - '0'; |
145 | b4608c04 | bellard | else if (v >= 'A' && v <= 'F') |
146 | b4608c04 | bellard | return v - 'A' + 10; |
147 | b4608c04 | bellard | else if (v >= 'a' && v <= 'f') |
148 | b4608c04 | bellard | return v - 'a' + 10; |
149 | b4608c04 | bellard | else
|
150 | b4608c04 | bellard | return 0; |
151 | b4608c04 | bellard | } |
152 | b4608c04 | bellard | |
153 | b4608c04 | bellard | static inline int tohex(int v) |
154 | b4608c04 | bellard | { |
155 | b4608c04 | bellard | if (v < 10) |
156 | b4608c04 | bellard | return v + '0'; |
157 | b4608c04 | bellard | else
|
158 | b4608c04 | bellard | return v - 10 + 'a'; |
159 | b4608c04 | bellard | } |
160 | b4608c04 | bellard | |
161 | b4608c04 | bellard | static void memtohex(char *buf, const uint8_t *mem, int len) |
162 | b4608c04 | bellard | { |
163 | b4608c04 | bellard | int i, c;
|
164 | b4608c04 | bellard | char *q;
|
165 | b4608c04 | bellard | q = buf; |
166 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
167 | b4608c04 | bellard | c = mem[i]; |
168 | b4608c04 | bellard | *q++ = tohex(c >> 4);
|
169 | b4608c04 | bellard | *q++ = tohex(c & 0xf);
|
170 | b4608c04 | bellard | } |
171 | b4608c04 | bellard | *q = '\0';
|
172 | b4608c04 | bellard | } |
173 | b4608c04 | bellard | |
174 | b4608c04 | bellard | static void hextomem(uint8_t *mem, const char *buf, int len) |
175 | b4608c04 | bellard | { |
176 | b4608c04 | bellard | int i;
|
177 | b4608c04 | bellard | |
178 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
179 | b4608c04 | bellard | mem[i] = (fromhex(buf[0]) << 4) | fromhex(buf[1]); |
180 | b4608c04 | bellard | buf += 2;
|
181 | b4608c04 | bellard | } |
182 | b4608c04 | bellard | } |
183 | b4608c04 | bellard | |
184 | b4608c04 | bellard | /* return -1 if error, 0 if OK */
|
185 | 858693c6 | bellard | static int put_packet(GDBState *s, char *buf) |
186 | b4608c04 | bellard | { |
187 | 4046d913 | pbrook | int len, csum, i;
|
188 | 4046d913 | pbrook | char *p;
|
189 | b4608c04 | bellard | |
190 | b4608c04 | bellard | #ifdef DEBUG_GDB
|
191 | b4608c04 | bellard | printf("reply='%s'\n", buf);
|
192 | b4608c04 | bellard | #endif
|
193 | b4608c04 | bellard | |
194 | b4608c04 | bellard | for(;;) {
|
195 | 4046d913 | pbrook | p = s->last_packet; |
196 | 4046d913 | pbrook | *(p++) = '$';
|
197 | b4608c04 | bellard | len = strlen(buf); |
198 | 4046d913 | pbrook | memcpy(p, buf, len); |
199 | 4046d913 | pbrook | p += len; |
200 | b4608c04 | bellard | csum = 0;
|
201 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
202 | b4608c04 | bellard | csum += buf[i]; |
203 | b4608c04 | bellard | } |
204 | 4046d913 | pbrook | *(p++) = '#';
|
205 | 4046d913 | pbrook | *(p++) = tohex((csum >> 4) & 0xf); |
206 | 4046d913 | pbrook | *(p++) = tohex((csum) & 0xf);
|
207 | b4608c04 | bellard | |
208 | 4046d913 | pbrook | s->last_packet_len = p - s->last_packet; |
209 | 4046d913 | pbrook | put_buffer(s, s->last_packet, s->last_packet_len); |
210 | b4608c04 | bellard | |
211 | 4046d913 | pbrook | #ifdef CONFIG_USER_ONLY
|
212 | 4046d913 | pbrook | i = get_char(s); |
213 | 4046d913 | pbrook | if (i < 0) |
214 | b4608c04 | bellard | return -1; |
215 | 4046d913 | pbrook | if (i == '+') |
216 | b4608c04 | bellard | break;
|
217 | 4046d913 | pbrook | #else
|
218 | 4046d913 | pbrook | break;
|
219 | 4046d913 | pbrook | #endif
|
220 | b4608c04 | bellard | } |
221 | b4608c04 | bellard | return 0; |
222 | b4608c04 | bellard | } |
223 | b4608c04 | bellard | |
224 | 6da41eaf | bellard | #if defined(TARGET_I386)
|
225 | 6da41eaf | bellard | |
226 | 6da41eaf | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
227 | 6da41eaf | bellard | { |
228 | e95c8d51 | bellard | uint32_t *registers = (uint32_t *)mem_buf; |
229 | 6da41eaf | bellard | int i, fpus;
|
230 | 6da41eaf | bellard | |
231 | 6da41eaf | bellard | for(i = 0; i < 8; i++) { |
232 | e95c8d51 | bellard | registers[i] = env->regs[i]; |
233 | 6da41eaf | bellard | } |
234 | e95c8d51 | bellard | registers[8] = env->eip;
|
235 | e95c8d51 | bellard | registers[9] = env->eflags;
|
236 | e95c8d51 | bellard | registers[10] = env->segs[R_CS].selector;
|
237 | e95c8d51 | bellard | registers[11] = env->segs[R_SS].selector;
|
238 | e95c8d51 | bellard | registers[12] = env->segs[R_DS].selector;
|
239 | e95c8d51 | bellard | registers[13] = env->segs[R_ES].selector;
|
240 | e95c8d51 | bellard | registers[14] = env->segs[R_FS].selector;
|
241 | e95c8d51 | bellard | registers[15] = env->segs[R_GS].selector;
|
242 | 6da41eaf | bellard | /* XXX: convert floats */
|
243 | 6da41eaf | bellard | for(i = 0; i < 8; i++) { |
244 | 6da41eaf | bellard | memcpy(mem_buf + 16 * 4 + i * 10, &env->fpregs[i], 10); |
245 | 6da41eaf | bellard | } |
246 | e95c8d51 | bellard | registers[36] = env->fpuc;
|
247 | 6da41eaf | bellard | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
248 | e95c8d51 | bellard | registers[37] = fpus;
|
249 | e95c8d51 | bellard | registers[38] = 0; /* XXX: convert tags */ |
250 | e95c8d51 | bellard | registers[39] = 0; /* fiseg */ |
251 | e95c8d51 | bellard | registers[40] = 0; /* fioff */ |
252 | e95c8d51 | bellard | registers[41] = 0; /* foseg */ |
253 | e95c8d51 | bellard | registers[42] = 0; /* fooff */ |
254 | e95c8d51 | bellard | registers[43] = 0; /* fop */ |
255 | 3b46e624 | ths | |
256 | e95c8d51 | bellard | for(i = 0; i < 16; i++) |
257 | e95c8d51 | bellard | tswapls(®isters[i]); |
258 | e95c8d51 | bellard | for(i = 36; i < 44; i++) |
259 | e95c8d51 | bellard | tswapls(®isters[i]); |
260 | 6da41eaf | bellard | return 44 * 4; |
261 | 6da41eaf | bellard | } |
262 | 6da41eaf | bellard | |
263 | 6da41eaf | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
264 | 6da41eaf | bellard | { |
265 | 6da41eaf | bellard | uint32_t *registers = (uint32_t *)mem_buf; |
266 | 6da41eaf | bellard | int i;
|
267 | 6da41eaf | bellard | |
268 | 6da41eaf | bellard | for(i = 0; i < 8; i++) { |
269 | 6da41eaf | bellard | env->regs[i] = tswapl(registers[i]); |
270 | 6da41eaf | bellard | } |
271 | e95c8d51 | bellard | env->eip = tswapl(registers[8]);
|
272 | e95c8d51 | bellard | env->eflags = tswapl(registers[9]);
|
273 | 6da41eaf | bellard | #if defined(CONFIG_USER_ONLY)
|
274 | 6da41eaf | bellard | #define LOAD_SEG(index, sreg)\
|
275 | 6da41eaf | bellard | if (tswapl(registers[index]) != env->segs[sreg].selector)\
|
276 | 6da41eaf | bellard | cpu_x86_load_seg(env, sreg, tswapl(registers[index])); |
277 | 6da41eaf | bellard | LOAD_SEG(10, R_CS);
|
278 | 6da41eaf | bellard | LOAD_SEG(11, R_SS);
|
279 | 6da41eaf | bellard | LOAD_SEG(12, R_DS);
|
280 | 6da41eaf | bellard | LOAD_SEG(13, R_ES);
|
281 | 6da41eaf | bellard | LOAD_SEG(14, R_FS);
|
282 | 6da41eaf | bellard | LOAD_SEG(15, R_GS);
|
283 | 6da41eaf | bellard | #endif
|
284 | 6da41eaf | bellard | } |
285 | 6da41eaf | bellard | |
286 | 9e62fd7f | bellard | #elif defined (TARGET_PPC)
|
287 | 9e62fd7f | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
288 | 9e62fd7f | bellard | { |
289 | a541f297 | bellard | uint32_t *registers = (uint32_t *)mem_buf, tmp; |
290 | 9e62fd7f | bellard | int i;
|
291 | 9e62fd7f | bellard | |
292 | 9e62fd7f | bellard | /* fill in gprs */
|
293 | a541f297 | bellard | for(i = 0; i < 32; i++) { |
294 | e95c8d51 | bellard | registers[i] = tswapl(env->gpr[i]); |
295 | 9e62fd7f | bellard | } |
296 | 9e62fd7f | bellard | /* fill in fprs */
|
297 | 9e62fd7f | bellard | for (i = 0; i < 32; i++) { |
298 | e95c8d51 | bellard | registers[(i * 2) + 32] = tswapl(*((uint32_t *)&env->fpr[i])); |
299 | e95c8d51 | bellard | registers[(i * 2) + 33] = tswapl(*((uint32_t *)&env->fpr[i] + 1)); |
300 | 9e62fd7f | bellard | } |
301 | 9e62fd7f | bellard | /* nip, msr, ccr, lnk, ctr, xer, mq */
|
302 | e95c8d51 | bellard | registers[96] = tswapl(env->nip);
|
303 | 3fc6c082 | bellard | registers[97] = tswapl(do_load_msr(env));
|
304 | 9e62fd7f | bellard | tmp = 0;
|
305 | 9e62fd7f | bellard | for (i = 0; i < 8; i++) |
306 | a541f297 | bellard | tmp |= env->crf[i] << (32 - ((i + 1) * 4)); |
307 | e95c8d51 | bellard | registers[98] = tswapl(tmp);
|
308 | e95c8d51 | bellard | registers[99] = tswapl(env->lr);
|
309 | e95c8d51 | bellard | registers[100] = tswapl(env->ctr);
|
310 | 76a66253 | j_mayer | registers[101] = tswapl(ppc_load_xer(env));
|
311 | e95c8d51 | bellard | registers[102] = 0; |
312 | a541f297 | bellard | |
313 | a541f297 | bellard | return 103 * 4; |
314 | 9e62fd7f | bellard | } |
315 | 9e62fd7f | bellard | |
316 | 9e62fd7f | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
317 | 9e62fd7f | bellard | { |
318 | 9e62fd7f | bellard | uint32_t *registers = (uint32_t *)mem_buf; |
319 | 9e62fd7f | bellard | int i;
|
320 | 9e62fd7f | bellard | |
321 | 9e62fd7f | bellard | /* fill in gprs */
|
322 | 9e62fd7f | bellard | for (i = 0; i < 32; i++) { |
323 | e95c8d51 | bellard | env->gpr[i] = tswapl(registers[i]); |
324 | 9e62fd7f | bellard | } |
325 | 9e62fd7f | bellard | /* fill in fprs */
|
326 | 9e62fd7f | bellard | for (i = 0; i < 32; i++) { |
327 | e95c8d51 | bellard | *((uint32_t *)&env->fpr[i]) = tswapl(registers[(i * 2) + 32]); |
328 | e95c8d51 | bellard | *((uint32_t *)&env->fpr[i] + 1) = tswapl(registers[(i * 2) + 33]); |
329 | 9e62fd7f | bellard | } |
330 | 9e62fd7f | bellard | /* nip, msr, ccr, lnk, ctr, xer, mq */
|
331 | e95c8d51 | bellard | env->nip = tswapl(registers[96]);
|
332 | 3fc6c082 | bellard | do_store_msr(env, tswapl(registers[97]));
|
333 | e95c8d51 | bellard | registers[98] = tswapl(registers[98]); |
334 | 9e62fd7f | bellard | for (i = 0; i < 8; i++) |
335 | a541f297 | bellard | env->crf[i] = (registers[98] >> (32 - ((i + 1) * 4))) & 0xF; |
336 | e95c8d51 | bellard | env->lr = tswapl(registers[99]);
|
337 | e95c8d51 | bellard | env->ctr = tswapl(registers[100]);
|
338 | 76a66253 | j_mayer | ppc_store_xer(env, tswapl(registers[101]));
|
339 | e95c8d51 | bellard | } |
340 | e95c8d51 | bellard | #elif defined (TARGET_SPARC)
|
341 | e95c8d51 | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
342 | e95c8d51 | bellard | { |
343 | 3475187d | bellard | target_ulong *registers = (target_ulong *)mem_buf; |
344 | e95c8d51 | bellard | int i;
|
345 | e95c8d51 | bellard | |
346 | e95c8d51 | bellard | /* fill in g0..g7 */
|
347 | 48b2c193 | bellard | for(i = 0; i < 8; i++) { |
348 | e95c8d51 | bellard | registers[i] = tswapl(env->gregs[i]); |
349 | e95c8d51 | bellard | } |
350 | e95c8d51 | bellard | /* fill in register window */
|
351 | e95c8d51 | bellard | for(i = 0; i < 24; i++) { |
352 | e95c8d51 | bellard | registers[i + 8] = tswapl(env->regwptr[i]);
|
353 | e95c8d51 | bellard | } |
354 | 9d9754a3 | bellard | #ifndef TARGET_SPARC64
|
355 | e95c8d51 | bellard | /* fill in fprs */
|
356 | e95c8d51 | bellard | for (i = 0; i < 32; i++) { |
357 | e95c8d51 | bellard | registers[i + 32] = tswapl(*((uint32_t *)&env->fpr[i]));
|
358 | e95c8d51 | bellard | } |
359 | e95c8d51 | bellard | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
|
360 | e95c8d51 | bellard | registers[64] = tswapl(env->y);
|
361 | 3475187d | bellard | { |
362 | 3475187d | bellard | target_ulong tmp; |
363 | 3475187d | bellard | |
364 | 3475187d | bellard | tmp = GET_PSR(env); |
365 | 3475187d | bellard | registers[65] = tswapl(tmp);
|
366 | 3475187d | bellard | } |
367 | e95c8d51 | bellard | registers[66] = tswapl(env->wim);
|
368 | e95c8d51 | bellard | registers[67] = tswapl(env->tbr);
|
369 | e95c8d51 | bellard | registers[68] = tswapl(env->pc);
|
370 | e95c8d51 | bellard | registers[69] = tswapl(env->npc);
|
371 | e95c8d51 | bellard | registers[70] = tswapl(env->fsr);
|
372 | e95c8d51 | bellard | registers[71] = 0; /* csr */ |
373 | e95c8d51 | bellard | registers[72] = 0; |
374 | 3475187d | bellard | return 73 * sizeof(target_ulong); |
375 | 3475187d | bellard | #else
|
376 | 9d9754a3 | bellard | /* fill in fprs */
|
377 | 9d9754a3 | bellard | for (i = 0; i < 64; i += 2) { |
378 | 9d9754a3 | bellard | uint64_t tmp; |
379 | 9d9754a3 | bellard | |
380 | 8979596d | blueswir1 | tmp = ((uint64_t)*(uint32_t *)&env->fpr[i]) << 32;
|
381 | 8979596d | blueswir1 | tmp |= *(uint32_t *)&env->fpr[i + 1];
|
382 | 8979596d | blueswir1 | registers[i / 2 + 32] = tswap64(tmp); |
383 | 3475187d | bellard | } |
384 | 9d9754a3 | bellard | registers[64] = tswapl(env->pc);
|
385 | 9d9754a3 | bellard | registers[65] = tswapl(env->npc);
|
386 | 17d996e1 | blueswir1 | registers[66] = tswapl(((uint64_t)GET_CCR(env) << 32) | |
387 | 17d996e1 | blueswir1 | ((env->asi & 0xff) << 24) | |
388 | 17d996e1 | blueswir1 | ((env->pstate & 0xfff) << 8) | |
389 | 17d996e1 | blueswir1 | GET_CWP64(env)); |
390 | 9d9754a3 | bellard | registers[67] = tswapl(env->fsr);
|
391 | 9d9754a3 | bellard | registers[68] = tswapl(env->fprs);
|
392 | 9d9754a3 | bellard | registers[69] = tswapl(env->y);
|
393 | 9d9754a3 | bellard | return 70 * sizeof(target_ulong); |
394 | 3475187d | bellard | #endif
|
395 | e95c8d51 | bellard | } |
396 | e95c8d51 | bellard | |
397 | e95c8d51 | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
398 | e95c8d51 | bellard | { |
399 | 3475187d | bellard | target_ulong *registers = (target_ulong *)mem_buf; |
400 | e95c8d51 | bellard | int i;
|
401 | e95c8d51 | bellard | |
402 | e95c8d51 | bellard | /* fill in g0..g7 */
|
403 | e95c8d51 | bellard | for(i = 0; i < 7; i++) { |
404 | e95c8d51 | bellard | env->gregs[i] = tswapl(registers[i]); |
405 | e95c8d51 | bellard | } |
406 | e95c8d51 | bellard | /* fill in register window */
|
407 | e95c8d51 | bellard | for(i = 0; i < 24; i++) { |
408 | 3475187d | bellard | env->regwptr[i] = tswapl(registers[i + 8]);
|
409 | e95c8d51 | bellard | } |
410 | 9d9754a3 | bellard | #ifndef TARGET_SPARC64
|
411 | e95c8d51 | bellard | /* fill in fprs */
|
412 | e95c8d51 | bellard | for (i = 0; i < 32; i++) { |
413 | e95c8d51 | bellard | *((uint32_t *)&env->fpr[i]) = tswapl(registers[i + 32]);
|
414 | e95c8d51 | bellard | } |
415 | e95c8d51 | bellard | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
|
416 | e95c8d51 | bellard | env->y = tswapl(registers[64]);
|
417 | e80cfcfc | bellard | PUT_PSR(env, tswapl(registers[65]));
|
418 | e95c8d51 | bellard | env->wim = tswapl(registers[66]);
|
419 | e95c8d51 | bellard | env->tbr = tswapl(registers[67]);
|
420 | e95c8d51 | bellard | env->pc = tswapl(registers[68]);
|
421 | e95c8d51 | bellard | env->npc = tswapl(registers[69]);
|
422 | e95c8d51 | bellard | env->fsr = tswapl(registers[70]);
|
423 | 3475187d | bellard | #else
|
424 | 9d9754a3 | bellard | for (i = 0; i < 64; i += 2) { |
425 | 8979596d | blueswir1 | uint64_t tmp; |
426 | 8979596d | blueswir1 | |
427 | 8979596d | blueswir1 | tmp = tswap64(registers[i / 2 + 32]); |
428 | 8979596d | blueswir1 | *((uint32_t *)&env->fpr[i]) = tmp >> 32;
|
429 | 8979596d | blueswir1 | *((uint32_t *)&env->fpr[i + 1]) = tmp & 0xffffffff; |
430 | 3475187d | bellard | } |
431 | 9d9754a3 | bellard | env->pc = tswapl(registers[64]);
|
432 | 9d9754a3 | bellard | env->npc = tswapl(registers[65]);
|
433 | 17d996e1 | blueswir1 | { |
434 | 17d996e1 | blueswir1 | uint64_t tmp = tswapl(registers[66]);
|
435 | 17d996e1 | blueswir1 | |
436 | 17d996e1 | blueswir1 | PUT_CCR(env, tmp >> 32);
|
437 | 17d996e1 | blueswir1 | env->asi = (tmp >> 24) & 0xff; |
438 | 17d996e1 | blueswir1 | env->pstate = (tmp >> 8) & 0xfff; |
439 | 17d996e1 | blueswir1 | PUT_CWP64(env, tmp & 0xff);
|
440 | 17d996e1 | blueswir1 | } |
441 | 9d9754a3 | bellard | env->fsr = tswapl(registers[67]);
|
442 | 9d9754a3 | bellard | env->fprs = tswapl(registers[68]);
|
443 | 9d9754a3 | bellard | env->y = tswapl(registers[69]);
|
444 | 3475187d | bellard | #endif
|
445 | 9e62fd7f | bellard | } |
446 | 1fddef4b | bellard | #elif defined (TARGET_ARM)
|
447 | 1fddef4b | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
448 | 1fddef4b | bellard | { |
449 | 1fddef4b | bellard | int i;
|
450 | 1fddef4b | bellard | uint8_t *ptr; |
451 | 1fddef4b | bellard | |
452 | 1fddef4b | bellard | ptr = mem_buf; |
453 | 1fddef4b | bellard | /* 16 core integer registers (4 bytes each). */
|
454 | 1fddef4b | bellard | for (i = 0; i < 16; i++) |
455 | 1fddef4b | bellard | { |
456 | 1fddef4b | bellard | *(uint32_t *)ptr = tswapl(env->regs[i]); |
457 | 1fddef4b | bellard | ptr += 4;
|
458 | 1fddef4b | bellard | } |
459 | 1fddef4b | bellard | /* 8 FPA registers (12 bytes each), FPS (4 bytes).
|
460 | 1fddef4b | bellard | Not yet implemented. */
|
461 | 1fddef4b | bellard | memset (ptr, 0, 8 * 12 + 4); |
462 | 1fddef4b | bellard | ptr += 8 * 12 + 4; |
463 | 1fddef4b | bellard | /* CPSR (4 bytes). */
|
464 | b5ff1b31 | bellard | *(uint32_t *)ptr = tswapl (cpsr_read(env)); |
465 | 1fddef4b | bellard | ptr += 4;
|
466 | 1fddef4b | bellard | |
467 | 1fddef4b | bellard | return ptr - mem_buf;
|
468 | 1fddef4b | bellard | } |
469 | 6da41eaf | bellard | |
470 | 1fddef4b | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
471 | 1fddef4b | bellard | { |
472 | 1fddef4b | bellard | int i;
|
473 | 1fddef4b | bellard | uint8_t *ptr; |
474 | 1fddef4b | bellard | |
475 | 1fddef4b | bellard | ptr = mem_buf; |
476 | 1fddef4b | bellard | /* Core integer registers. */
|
477 | 1fddef4b | bellard | for (i = 0; i < 16; i++) |
478 | 1fddef4b | bellard | { |
479 | 1fddef4b | bellard | env->regs[i] = tswapl(*(uint32_t *)ptr); |
480 | 1fddef4b | bellard | ptr += 4;
|
481 | 1fddef4b | bellard | } |
482 | 1fddef4b | bellard | /* Ignore FPA regs and scr. */
|
483 | 1fddef4b | bellard | ptr += 8 * 12 + 4; |
484 | b5ff1b31 | bellard | cpsr_write (env, tswapl(*(uint32_t *)ptr), 0xffffffff);
|
485 | 1fddef4b | bellard | } |
486 | e6e5906b | pbrook | #elif defined (TARGET_M68K)
|
487 | e6e5906b | pbrook | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
488 | e6e5906b | pbrook | { |
489 | e6e5906b | pbrook | int i;
|
490 | e6e5906b | pbrook | uint8_t *ptr; |
491 | e6e5906b | pbrook | CPU_DoubleU u; |
492 | e6e5906b | pbrook | |
493 | e6e5906b | pbrook | ptr = mem_buf; |
494 | e6e5906b | pbrook | /* D0-D7 */
|
495 | e6e5906b | pbrook | for (i = 0; i < 8; i++) { |
496 | e6e5906b | pbrook | *(uint32_t *)ptr = tswapl(env->dregs[i]); |
497 | e6e5906b | pbrook | ptr += 4;
|
498 | e6e5906b | pbrook | } |
499 | e6e5906b | pbrook | /* A0-A7 */
|
500 | e6e5906b | pbrook | for (i = 0; i < 8; i++) { |
501 | e6e5906b | pbrook | *(uint32_t *)ptr = tswapl(env->aregs[i]); |
502 | e6e5906b | pbrook | ptr += 4;
|
503 | e6e5906b | pbrook | } |
504 | e6e5906b | pbrook | *(uint32_t *)ptr = tswapl(env->sr); |
505 | e6e5906b | pbrook | ptr += 4;
|
506 | e6e5906b | pbrook | *(uint32_t *)ptr = tswapl(env->pc); |
507 | e6e5906b | pbrook | ptr += 4;
|
508 | e6e5906b | pbrook | /* F0-F7. The 68881/68040 have 12-bit extended precision registers.
|
509 | e6e5906b | pbrook | ColdFire has 8-bit double precision registers. */
|
510 | e6e5906b | pbrook | for (i = 0; i < 8; i++) { |
511 | e6e5906b | pbrook | u.d = env->fregs[i]; |
512 | e6e5906b | pbrook | *(uint32_t *)ptr = tswap32(u.l.upper); |
513 | e6e5906b | pbrook | *(uint32_t *)ptr = tswap32(u.l.lower); |
514 | e6e5906b | pbrook | } |
515 | e6e5906b | pbrook | /* FP control regs (not implemented). */
|
516 | e6e5906b | pbrook | memset (ptr, 0, 3 * 4); |
517 | e6e5906b | pbrook | ptr += 3 * 4; |
518 | e6e5906b | pbrook | |
519 | e6e5906b | pbrook | return ptr - mem_buf;
|
520 | e6e5906b | pbrook | } |
521 | e6e5906b | pbrook | |
522 | e6e5906b | pbrook | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
523 | e6e5906b | pbrook | { |
524 | e6e5906b | pbrook | int i;
|
525 | e6e5906b | pbrook | uint8_t *ptr; |
526 | e6e5906b | pbrook | CPU_DoubleU u; |
527 | e6e5906b | pbrook | |
528 | e6e5906b | pbrook | ptr = mem_buf; |
529 | e6e5906b | pbrook | /* D0-D7 */
|
530 | e6e5906b | pbrook | for (i = 0; i < 8; i++) { |
531 | e6e5906b | pbrook | env->dregs[i] = tswapl(*(uint32_t *)ptr); |
532 | e6e5906b | pbrook | ptr += 4;
|
533 | e6e5906b | pbrook | } |
534 | e6e5906b | pbrook | /* A0-A7 */
|
535 | e6e5906b | pbrook | for (i = 0; i < 8; i++) { |
536 | e6e5906b | pbrook | env->aregs[i] = tswapl(*(uint32_t *)ptr); |
537 | e6e5906b | pbrook | ptr += 4;
|
538 | e6e5906b | pbrook | } |
539 | e6e5906b | pbrook | env->sr = tswapl(*(uint32_t *)ptr); |
540 | e6e5906b | pbrook | ptr += 4;
|
541 | e6e5906b | pbrook | env->pc = tswapl(*(uint32_t *)ptr); |
542 | e6e5906b | pbrook | ptr += 4;
|
543 | e6e5906b | pbrook | /* F0-F7. The 68881/68040 have 12-bit extended precision registers.
|
544 | e6e5906b | pbrook | ColdFire has 8-bit double precision registers. */
|
545 | e6e5906b | pbrook | for (i = 0; i < 8; i++) { |
546 | 5fafdf24 | ths | u.l.upper = tswap32(*(uint32_t *)ptr); |
547 | e6e5906b | pbrook | u.l.lower = tswap32(*(uint32_t *)ptr); |
548 | e6e5906b | pbrook | env->fregs[i] = u.d; |
549 | e6e5906b | pbrook | } |
550 | e6e5906b | pbrook | /* FP control regs (not implemented). */
|
551 | e6e5906b | pbrook | ptr += 3 * 4; |
552 | e6e5906b | pbrook | } |
553 | 6f970bd9 | bellard | #elif defined (TARGET_MIPS)
|
554 | 6f970bd9 | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
555 | 6f970bd9 | bellard | { |
556 | 6f970bd9 | bellard | int i;
|
557 | 6f970bd9 | bellard | uint8_t *ptr; |
558 | 6f970bd9 | bellard | |
559 | 6f970bd9 | bellard | ptr = mem_buf; |
560 | 6f970bd9 | bellard | for (i = 0; i < 32; i++) |
561 | 6f970bd9 | bellard | { |
562 | ead9360e | ths | *(target_ulong *)ptr = tswapl(env->gpr[i][env->current_tc]); |
563 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
564 | 6f970bd9 | bellard | } |
565 | 6f970bd9 | bellard | |
566 | 2052caa7 | ths | *(target_ulong *)ptr = tswapl(env->CP0_Status); |
567 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
568 | 6f970bd9 | bellard | |
569 | ead9360e | ths | *(target_ulong *)ptr = tswapl(env->LO[0][env->current_tc]);
|
570 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
571 | 6f970bd9 | bellard | |
572 | ead9360e | ths | *(target_ulong *)ptr = tswapl(env->HI[0][env->current_tc]);
|
573 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
574 | 6f970bd9 | bellard | |
575 | 2052caa7 | ths | *(target_ulong *)ptr = tswapl(env->CP0_BadVAddr); |
576 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
577 | 6f970bd9 | bellard | |
578 | 2052caa7 | ths | *(target_ulong *)ptr = tswapl(env->CP0_Cause); |
579 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
580 | 6f970bd9 | bellard | |
581 | ead9360e | ths | *(target_ulong *)ptr = tswapl(env->PC[env->current_tc]); |
582 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
583 | 6f970bd9 | bellard | |
584 | 36d23958 | ths | if (env->CP0_Config1 & (1 << CP0C1_FP)) |
585 | 8e33c08c | ths | { |
586 | 36d23958 | ths | for (i = 0; i < 32; i++) |
587 | 36d23958 | ths | { |
588 | ead9360e | ths | *(target_ulong *)ptr = tswapl(env->fpu->fpr[i].fs[FP_ENDIAN_IDX]); |
589 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
590 | 36d23958 | ths | } |
591 | 8e33c08c | ths | |
592 | ead9360e | ths | *(target_ulong *)ptr = tswapl(env->fpu->fcr31); |
593 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
594 | 8e33c08c | ths | |
595 | ead9360e | ths | *(target_ulong *)ptr = tswapl(env->fpu->fcr0); |
596 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
597 | 36d23958 | ths | } |
598 | 8e33c08c | ths | |
599 | 6f970bd9 | bellard | /* 32 FP registers, fsr, fir, fp. Not yet implemented. */
|
600 | 8e33c08c | ths | /* what's 'fp' mean here? */
|
601 | 6f970bd9 | bellard | |
602 | 6f970bd9 | bellard | return ptr - mem_buf;
|
603 | 6f970bd9 | bellard | } |
604 | 6f970bd9 | bellard | |
605 | 8e33c08c | ths | /* convert MIPS rounding mode in FCR31 to IEEE library */
|
606 | 8e33c08c | ths | static unsigned int ieee_rm[] = |
607 | 8e33c08c | ths | { |
608 | 8e33c08c | ths | float_round_nearest_even, |
609 | 8e33c08c | ths | float_round_to_zero, |
610 | 8e33c08c | ths | float_round_up, |
611 | 8e33c08c | ths | float_round_down |
612 | 8e33c08c | ths | }; |
613 | 8e33c08c | ths | #define RESTORE_ROUNDING_MODE \
|
614 | ead9360e | ths | set_float_rounding_mode(ieee_rm[env->fpu->fcr31 & 3], &env->fpu->fp_status)
|
615 | 8e33c08c | ths | |
616 | 6f970bd9 | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
617 | 6f970bd9 | bellard | { |
618 | 6f970bd9 | bellard | int i;
|
619 | 6f970bd9 | bellard | uint8_t *ptr; |
620 | 6f970bd9 | bellard | |
621 | 6f970bd9 | bellard | ptr = mem_buf; |
622 | 6f970bd9 | bellard | for (i = 0; i < 32; i++) |
623 | 6f970bd9 | bellard | { |
624 | ead9360e | ths | env->gpr[i][env->current_tc] = tswapl(*(target_ulong *)ptr); |
625 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
626 | 6f970bd9 | bellard | } |
627 | 6f970bd9 | bellard | |
628 | 2052caa7 | ths | env->CP0_Status = tswapl(*(target_ulong *)ptr); |
629 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
630 | 6f970bd9 | bellard | |
631 | ead9360e | ths | env->LO[0][env->current_tc] = tswapl(*(target_ulong *)ptr);
|
632 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
633 | 6f970bd9 | bellard | |
634 | ead9360e | ths | env->HI[0][env->current_tc] = tswapl(*(target_ulong *)ptr);
|
635 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
636 | 6f970bd9 | bellard | |
637 | 2052caa7 | ths | env->CP0_BadVAddr = tswapl(*(target_ulong *)ptr); |
638 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
639 | 6f970bd9 | bellard | |
640 | 2052caa7 | ths | env->CP0_Cause = tswapl(*(target_ulong *)ptr); |
641 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
642 | 6f970bd9 | bellard | |
643 | ead9360e | ths | env->PC[env->current_tc] = tswapl(*(target_ulong *)ptr); |
644 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
645 | 8e33c08c | ths | |
646 | 36d23958 | ths | if (env->CP0_Config1 & (1 << CP0C1_FP)) |
647 | 8e33c08c | ths | { |
648 | 36d23958 | ths | for (i = 0; i < 32; i++) |
649 | 36d23958 | ths | { |
650 | ead9360e | ths | env->fpu->fpr[i].fs[FP_ENDIAN_IDX] = tswapl(*(target_ulong *)ptr); |
651 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
652 | 36d23958 | ths | } |
653 | 8e33c08c | ths | |
654 | ead9360e | ths | env->fpu->fcr31 = tswapl(*(target_ulong *)ptr) & 0x0183FFFF;
|
655 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
656 | 8e33c08c | ths | |
657 | ead9360e | ths | env->fpu->fcr0 = tswapl(*(target_ulong *)ptr); |
658 | 2052caa7 | ths | ptr += sizeof(target_ulong);
|
659 | 8e33c08c | ths | |
660 | 36d23958 | ths | /* set rounding mode */
|
661 | 36d23958 | ths | RESTORE_ROUNDING_MODE; |
662 | 8e33c08c | ths | |
663 | 8e33c08c | ths | #ifndef CONFIG_SOFTFLOAT
|
664 | 36d23958 | ths | /* no floating point exception for native float */
|
665 | 36d23958 | ths | SET_FP_ENABLE(env->fcr31, 0);
|
666 | 8e33c08c | ths | #endif
|
667 | 36d23958 | ths | } |
668 | 6f970bd9 | bellard | } |
669 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
670 | 6ef99fc5 | ths | |
671 | 6ef99fc5 | ths | /* Hint: Use "set architecture sh4" in GDB to see fpu registers */
|
672 | 6ef99fc5 | ths | |
673 | fdf9b3e8 | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
674 | fdf9b3e8 | bellard | { |
675 | fdf9b3e8 | bellard | uint32_t *ptr = (uint32_t *)mem_buf; |
676 | fdf9b3e8 | bellard | int i;
|
677 | fdf9b3e8 | bellard | |
678 | fdf9b3e8 | bellard | #define SAVE(x) *ptr++=tswapl(x)
|
679 | 9c2a9ea1 | pbrook | if ((env->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB)) {
|
680 | 9c2a9ea1 | pbrook | for (i = 0; i < 8; i++) SAVE(env->gregs[i + 16]); |
681 | 9c2a9ea1 | pbrook | } else {
|
682 | 9c2a9ea1 | pbrook | for (i = 0; i < 8; i++) SAVE(env->gregs[i]); |
683 | 9c2a9ea1 | pbrook | } |
684 | 9c2a9ea1 | pbrook | for (i = 8; i < 16; i++) SAVE(env->gregs[i]); |
685 | fdf9b3e8 | bellard | SAVE (env->pc); |
686 | fdf9b3e8 | bellard | SAVE (env->pr); |
687 | fdf9b3e8 | bellard | SAVE (env->gbr); |
688 | fdf9b3e8 | bellard | SAVE (env->vbr); |
689 | fdf9b3e8 | bellard | SAVE (env->mach); |
690 | fdf9b3e8 | bellard | SAVE (env->macl); |
691 | fdf9b3e8 | bellard | SAVE (env->sr); |
692 | 6ef99fc5 | ths | SAVE (env->fpul); |
693 | 6ef99fc5 | ths | SAVE (env->fpscr); |
694 | 6ef99fc5 | ths | for (i = 0; i < 16; i++) |
695 | 6ef99fc5 | ths | SAVE(env->fregs[i + ((env->fpscr & FPSCR_FR) ? 16 : 0)]); |
696 | 6ef99fc5 | ths | SAVE (env->ssr); |
697 | 6ef99fc5 | ths | SAVE (env->spc); |
698 | 6ef99fc5 | ths | for (i = 0; i < 8; i++) SAVE(env->gregs[i]); |
699 | 6ef99fc5 | ths | for (i = 0; i < 8; i++) SAVE(env->gregs[i + 16]); |
700 | fdf9b3e8 | bellard | return ((uint8_t *)ptr - mem_buf);
|
701 | fdf9b3e8 | bellard | } |
702 | fdf9b3e8 | bellard | |
703 | fdf9b3e8 | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
704 | fdf9b3e8 | bellard | { |
705 | fdf9b3e8 | bellard | uint32_t *ptr = (uint32_t *)mem_buf; |
706 | fdf9b3e8 | bellard | int i;
|
707 | fdf9b3e8 | bellard | |
708 | fdf9b3e8 | bellard | #define LOAD(x) (x)=*ptr++;
|
709 | 9c2a9ea1 | pbrook | if ((env->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB)) {
|
710 | 9c2a9ea1 | pbrook | for (i = 0; i < 8; i++) LOAD(env->gregs[i + 16]); |
711 | 9c2a9ea1 | pbrook | } else {
|
712 | 9c2a9ea1 | pbrook | for (i = 0; i < 8; i++) LOAD(env->gregs[i]); |
713 | 9c2a9ea1 | pbrook | } |
714 | 9c2a9ea1 | pbrook | for (i = 8; i < 16; i++) LOAD(env->gregs[i]); |
715 | fdf9b3e8 | bellard | LOAD (env->pc); |
716 | fdf9b3e8 | bellard | LOAD (env->pr); |
717 | fdf9b3e8 | bellard | LOAD (env->gbr); |
718 | fdf9b3e8 | bellard | LOAD (env->vbr); |
719 | fdf9b3e8 | bellard | LOAD (env->mach); |
720 | fdf9b3e8 | bellard | LOAD (env->macl); |
721 | fdf9b3e8 | bellard | LOAD (env->sr); |
722 | 6ef99fc5 | ths | LOAD (env->fpul); |
723 | 6ef99fc5 | ths | LOAD (env->fpscr); |
724 | 6ef99fc5 | ths | for (i = 0; i < 16; i++) |
725 | 6ef99fc5 | ths | LOAD(env->fregs[i + ((env->fpscr & FPSCR_FR) ? 16 : 0)]); |
726 | 6ef99fc5 | ths | LOAD (env->ssr); |
727 | 6ef99fc5 | ths | LOAD (env->spc); |
728 | 6ef99fc5 | ths | for (i = 0; i < 8; i++) LOAD(env->gregs[i]); |
729 | 6ef99fc5 | ths | for (i = 0; i < 8; i++) LOAD(env->gregs[i + 16]); |
730 | fdf9b3e8 | bellard | } |
731 | f1ccf904 | ths | #elif defined (TARGET_CRIS)
|
732 | f1ccf904 | ths | |
733 | f1ccf904 | ths | static int cris_save_32 (unsigned char *d, uint32_t value) |
734 | f1ccf904 | ths | { |
735 | f1ccf904 | ths | *d++ = (value); |
736 | f1ccf904 | ths | *d++ = (value >>= 8);
|
737 | f1ccf904 | ths | *d++ = (value >>= 8);
|
738 | f1ccf904 | ths | *d++ = (value >>= 8);
|
739 | f1ccf904 | ths | return 4; |
740 | f1ccf904 | ths | } |
741 | f1ccf904 | ths | static int cris_save_16 (unsigned char *d, uint32_t value) |
742 | f1ccf904 | ths | { |
743 | f1ccf904 | ths | *d++ = (value); |
744 | f1ccf904 | ths | *d++ = (value >>= 8);
|
745 | f1ccf904 | ths | return 2; |
746 | f1ccf904 | ths | } |
747 | f1ccf904 | ths | static int cris_save_8 (unsigned char *d, uint32_t value) |
748 | f1ccf904 | ths | { |
749 | f1ccf904 | ths | *d++ = (value); |
750 | f1ccf904 | ths | return 1; |
751 | f1ccf904 | ths | } |
752 | f1ccf904 | ths | |
753 | f1ccf904 | ths | /* FIXME: this will bug on archs not supporting unaligned word accesses. */
|
754 | f1ccf904 | ths | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
755 | f1ccf904 | ths | { |
756 | f1ccf904 | ths | uint8_t *ptr = mem_buf; |
757 | f1ccf904 | ths | uint8_t srs; |
758 | f1ccf904 | ths | int i;
|
759 | f1ccf904 | ths | |
760 | f1ccf904 | ths | for (i = 0; i < 16; i++) |
761 | f1ccf904 | ths | ptr += cris_save_32 (ptr, env->regs[i]); |
762 | f1ccf904 | ths | |
763 | f1ccf904 | ths | srs = env->pregs[SR_SRS]; |
764 | f1ccf904 | ths | |
765 | f1ccf904 | ths | ptr += cris_save_8 (ptr, env->pregs[0]);
|
766 | f1ccf904 | ths | ptr += cris_save_8 (ptr, env->pregs[1]);
|
767 | f1ccf904 | ths | ptr += cris_save_32 (ptr, env->pregs[2]);
|
768 | f1ccf904 | ths | ptr += cris_save_8 (ptr, srs); |
769 | f1ccf904 | ths | ptr += cris_save_16 (ptr, env->pregs[4]);
|
770 | f1ccf904 | ths | |
771 | f1ccf904 | ths | for (i = 5; i < 16; i++) |
772 | f1ccf904 | ths | ptr += cris_save_32 (ptr, env->pregs[i]); |
773 | f1ccf904 | ths | |
774 | f1ccf904 | ths | ptr += cris_save_32 (ptr, env->pc); |
775 | f1ccf904 | ths | |
776 | f1ccf904 | ths | for (i = 0; i < 16; i++) |
777 | f1ccf904 | ths | ptr += cris_save_32 (ptr, env->sregs[srs][i]); |
778 | f1ccf904 | ths | |
779 | f1ccf904 | ths | return ((uint8_t *)ptr - mem_buf);
|
780 | f1ccf904 | ths | } |
781 | f1ccf904 | ths | |
782 | f1ccf904 | ths | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
783 | f1ccf904 | ths | { |
784 | f1ccf904 | ths | uint32_t *ptr = (uint32_t *)mem_buf; |
785 | f1ccf904 | ths | int i;
|
786 | f1ccf904 | ths | |
787 | f1ccf904 | ths | #define LOAD(x) (x)=*ptr++;
|
788 | f1ccf904 | ths | for (i = 0; i < 16; i++) LOAD(env->regs[i]); |
789 | f1ccf904 | ths | LOAD (env->pc); |
790 | f1ccf904 | ths | } |
791 | 1fddef4b | bellard | #else
|
792 | 6da41eaf | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
793 | 6da41eaf | bellard | { |
794 | 6da41eaf | bellard | return 0; |
795 | 6da41eaf | bellard | } |
796 | 6da41eaf | bellard | |
797 | 6da41eaf | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
798 | 6da41eaf | bellard | { |
799 | 6da41eaf | bellard | } |
800 | 6da41eaf | bellard | |
801 | 6da41eaf | bellard | #endif
|
802 | b4608c04 | bellard | |
803 | 1fddef4b | bellard | static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf) |
804 | b4608c04 | bellard | { |
805 | b4608c04 | bellard | const char *p; |
806 | 858693c6 | bellard | int ch, reg_size, type;
|
807 | b4608c04 | bellard | char buf[4096]; |
808 | f1ccf904 | ths | uint8_t mem_buf[4096];
|
809 | b4608c04 | bellard | uint32_t *registers; |
810 | 9d9754a3 | bellard | target_ulong addr, len; |
811 | 3b46e624 | ths | |
812 | 858693c6 | bellard | #ifdef DEBUG_GDB
|
813 | 858693c6 | bellard | printf("command='%s'\n", line_buf);
|
814 | 858693c6 | bellard | #endif
|
815 | 858693c6 | bellard | p = line_buf; |
816 | 858693c6 | bellard | ch = *p++; |
817 | 858693c6 | bellard | switch(ch) {
|
818 | 858693c6 | bellard | case '?': |
819 | 1fddef4b | bellard | /* TODO: Make this return the correct value for user-mode. */
|
820 | 858693c6 | bellard | snprintf(buf, sizeof(buf), "S%02x", SIGTRAP); |
821 | 858693c6 | bellard | put_packet(s, buf); |
822 | 858693c6 | bellard | break;
|
823 | 858693c6 | bellard | case 'c': |
824 | 858693c6 | bellard | if (*p != '\0') { |
825 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
826 | 4c3a88a2 | bellard | #if defined(TARGET_I386)
|
827 | 858693c6 | bellard | env->eip = addr; |
828 | 5be1a8e0 | bellard | #elif defined (TARGET_PPC)
|
829 | 858693c6 | bellard | env->nip = addr; |
830 | 8d5f07fa | bellard | #elif defined (TARGET_SPARC)
|
831 | 8d5f07fa | bellard | env->pc = addr; |
832 | 8d5f07fa | bellard | env->npc = addr + 4;
|
833 | b5ff1b31 | bellard | #elif defined (TARGET_ARM)
|
834 | b5ff1b31 | bellard | env->regs[15] = addr;
|
835 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
836 | 8fac5803 | ths | env->pc = addr; |
837 | 8fac5803 | ths | #elif defined (TARGET_MIPS)
|
838 | ead9360e | ths | env->PC[env->current_tc] = addr; |
839 | f1ccf904 | ths | #elif defined (TARGET_CRIS)
|
840 | f1ccf904 | ths | env->pc = addr; |
841 | 4c3a88a2 | bellard | #endif
|
842 | 858693c6 | bellard | } |
843 | 41625033 | bellard | #ifdef CONFIG_USER_ONLY
|
844 | 41625033 | bellard | s->running_state = 1;
|
845 | 41625033 | bellard | #else
|
846 | 41625033 | bellard | vm_start(); |
847 | 41625033 | bellard | #endif
|
848 | 41625033 | bellard | return RS_IDLE;
|
849 | 858693c6 | bellard | case 's': |
850 | 858693c6 | bellard | if (*p != '\0') { |
851 | 8fac5803 | ths | addr = strtoull(p, (char **)&p, 16); |
852 | c33a346e | bellard | #if defined(TARGET_I386)
|
853 | 858693c6 | bellard | env->eip = addr; |
854 | 5be1a8e0 | bellard | #elif defined (TARGET_PPC)
|
855 | 858693c6 | bellard | env->nip = addr; |
856 | 8d5f07fa | bellard | #elif defined (TARGET_SPARC)
|
857 | 8d5f07fa | bellard | env->pc = addr; |
858 | 8d5f07fa | bellard | env->npc = addr + 4;
|
859 | b5ff1b31 | bellard | #elif defined (TARGET_ARM)
|
860 | b5ff1b31 | bellard | env->regs[15] = addr;
|
861 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
862 | 8fac5803 | ths | env->pc = addr; |
863 | 8fac5803 | ths | #elif defined (TARGET_MIPS)
|
864 | ead9360e | ths | env->PC[env->current_tc] = addr; |
865 | f1ccf904 | ths | #elif defined (TARGET_CRIS)
|
866 | f1ccf904 | ths | env->pc = addr; |
867 | c33a346e | bellard | #endif
|
868 | 858693c6 | bellard | } |
869 | 858693c6 | bellard | cpu_single_step(env, 1);
|
870 | 41625033 | bellard | #ifdef CONFIG_USER_ONLY
|
871 | 41625033 | bellard | s->running_state = 1;
|
872 | 41625033 | bellard | #else
|
873 | 41625033 | bellard | vm_start(); |
874 | 41625033 | bellard | #endif
|
875 | 41625033 | bellard | return RS_IDLE;
|
876 | a2d1ebaf | pbrook | case 'F': |
877 | a2d1ebaf | pbrook | { |
878 | a2d1ebaf | pbrook | target_ulong ret; |
879 | a2d1ebaf | pbrook | target_ulong err; |
880 | a2d1ebaf | pbrook | |
881 | a2d1ebaf | pbrook | ret = strtoull(p, (char **)&p, 16); |
882 | a2d1ebaf | pbrook | if (*p == ',') { |
883 | a2d1ebaf | pbrook | p++; |
884 | a2d1ebaf | pbrook | err = strtoull(p, (char **)&p, 16); |
885 | a2d1ebaf | pbrook | } else {
|
886 | a2d1ebaf | pbrook | err = 0;
|
887 | a2d1ebaf | pbrook | } |
888 | a2d1ebaf | pbrook | if (*p == ',') |
889 | a2d1ebaf | pbrook | p++; |
890 | a2d1ebaf | pbrook | type = *p; |
891 | a2d1ebaf | pbrook | if (gdb_current_syscall_cb)
|
892 | a2d1ebaf | pbrook | gdb_current_syscall_cb(s->env, ret, err); |
893 | a2d1ebaf | pbrook | if (type == 'C') { |
894 | a2d1ebaf | pbrook | put_packet(s, "T02");
|
895 | a2d1ebaf | pbrook | } else {
|
896 | a2d1ebaf | pbrook | #ifdef CONFIG_USER_ONLY
|
897 | a2d1ebaf | pbrook | s->running_state = 1;
|
898 | a2d1ebaf | pbrook | #else
|
899 | a2d1ebaf | pbrook | vm_start(); |
900 | a2d1ebaf | pbrook | #endif
|
901 | a2d1ebaf | pbrook | } |
902 | a2d1ebaf | pbrook | } |
903 | a2d1ebaf | pbrook | break;
|
904 | 858693c6 | bellard | case 'g': |
905 | 858693c6 | bellard | reg_size = cpu_gdb_read_registers(env, mem_buf); |
906 | 858693c6 | bellard | memtohex(buf, mem_buf, reg_size); |
907 | 858693c6 | bellard | put_packet(s, buf); |
908 | 858693c6 | bellard | break;
|
909 | 858693c6 | bellard | case 'G': |
910 | 858693c6 | bellard | registers = (void *)mem_buf;
|
911 | 858693c6 | bellard | len = strlen(p) / 2;
|
912 | 858693c6 | bellard | hextomem((uint8_t *)registers, p, len); |
913 | 858693c6 | bellard | cpu_gdb_write_registers(env, mem_buf, len); |
914 | 858693c6 | bellard | put_packet(s, "OK");
|
915 | 858693c6 | bellard | break;
|
916 | 858693c6 | bellard | case 'm': |
917 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
918 | 858693c6 | bellard | if (*p == ',') |
919 | 858693c6 | bellard | p++; |
920 | 9d9754a3 | bellard | len = strtoull(p, NULL, 16); |
921 | 6f970bd9 | bellard | if (cpu_memory_rw_debug(env, addr, mem_buf, len, 0) != 0) { |
922 | 6f970bd9 | bellard | put_packet (s, "E14");
|
923 | 6f970bd9 | bellard | } else {
|
924 | 6f970bd9 | bellard | memtohex(buf, mem_buf, len); |
925 | 6f970bd9 | bellard | put_packet(s, buf); |
926 | 6f970bd9 | bellard | } |
927 | 858693c6 | bellard | break;
|
928 | 858693c6 | bellard | case 'M': |
929 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
930 | 858693c6 | bellard | if (*p == ',') |
931 | 858693c6 | bellard | p++; |
932 | 9d9754a3 | bellard | len = strtoull(p, (char **)&p, 16); |
933 | b328f873 | bellard | if (*p == ':') |
934 | 858693c6 | bellard | p++; |
935 | 858693c6 | bellard | hextomem(mem_buf, p, len); |
936 | 858693c6 | bellard | if (cpu_memory_rw_debug(env, addr, mem_buf, len, 1) != 0) |
937 | 905f20b1 | bellard | put_packet(s, "E14");
|
938 | 858693c6 | bellard | else
|
939 | 858693c6 | bellard | put_packet(s, "OK");
|
940 | 858693c6 | bellard | break;
|
941 | 858693c6 | bellard | case 'Z': |
942 | 858693c6 | bellard | type = strtoul(p, (char **)&p, 16); |
943 | 858693c6 | bellard | if (*p == ',') |
944 | 858693c6 | bellard | p++; |
945 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
946 | 858693c6 | bellard | if (*p == ',') |
947 | 858693c6 | bellard | p++; |
948 | 9d9754a3 | bellard | len = strtoull(p, (char **)&p, 16); |
949 | 858693c6 | bellard | if (type == 0 || type == 1) { |
950 | 858693c6 | bellard | if (cpu_breakpoint_insert(env, addr) < 0) |
951 | 858693c6 | bellard | goto breakpoint_error;
|
952 | 858693c6 | bellard | put_packet(s, "OK");
|
953 | 6658ffb8 | pbrook | #ifndef CONFIG_USER_ONLY
|
954 | 6658ffb8 | pbrook | } else if (type == 2) { |
955 | 6658ffb8 | pbrook | if (cpu_watchpoint_insert(env, addr) < 0) |
956 | 6658ffb8 | pbrook | goto breakpoint_error;
|
957 | 6658ffb8 | pbrook | put_packet(s, "OK");
|
958 | 6658ffb8 | pbrook | #endif
|
959 | 858693c6 | bellard | } else {
|
960 | 858693c6 | bellard | breakpoint_error:
|
961 | 905f20b1 | bellard | put_packet(s, "E22");
|
962 | 858693c6 | bellard | } |
963 | 858693c6 | bellard | break;
|
964 | 858693c6 | bellard | case 'z': |
965 | 858693c6 | bellard | type = strtoul(p, (char **)&p, 16); |
966 | 858693c6 | bellard | if (*p == ',') |
967 | 858693c6 | bellard | p++; |
968 | 9d9754a3 | bellard | addr = strtoull(p, (char **)&p, 16); |
969 | 858693c6 | bellard | if (*p == ',') |
970 | 858693c6 | bellard | p++; |
971 | 9d9754a3 | bellard | len = strtoull(p, (char **)&p, 16); |
972 | 858693c6 | bellard | if (type == 0 || type == 1) { |
973 | 858693c6 | bellard | cpu_breakpoint_remove(env, addr); |
974 | 858693c6 | bellard | put_packet(s, "OK");
|
975 | 6658ffb8 | pbrook | #ifndef CONFIG_USER_ONLY
|
976 | 6658ffb8 | pbrook | } else if (type == 2) { |
977 | 6658ffb8 | pbrook | cpu_watchpoint_remove(env, addr); |
978 | 6658ffb8 | pbrook | put_packet(s, "OK");
|
979 | 6658ffb8 | pbrook | #endif
|
980 | 858693c6 | bellard | } else {
|
981 | 858693c6 | bellard | goto breakpoint_error;
|
982 | 858693c6 | bellard | } |
983 | 858693c6 | bellard | break;
|
984 | 831b7825 | ths | #ifdef CONFIG_LINUX_USER
|
985 | 978efd6a | pbrook | case 'q': |
986 | 978efd6a | pbrook | if (strncmp(p, "Offsets", 7) == 0) { |
987 | 978efd6a | pbrook | TaskState *ts = env->opaque; |
988 | 978efd6a | pbrook | |
989 | fe834d04 | ths | sprintf(buf, |
990 | fe834d04 | ths | "Text=" TARGET_FMT_lx ";Data=" TARGET_FMT_lx ";Bss=" TARGET_FMT_lx, |
991 | fe834d04 | ths | ts->info->code_offset, |
992 | fe834d04 | ths | ts->info->data_offset, |
993 | fe834d04 | ths | ts->info->data_offset); |
994 | 978efd6a | pbrook | put_packet(s, buf); |
995 | 978efd6a | pbrook | break;
|
996 | 978efd6a | pbrook | } |
997 | 978efd6a | pbrook | /* Fall through. */
|
998 | 978efd6a | pbrook | #endif
|
999 | 858693c6 | bellard | default:
|
1000 | 858693c6 | bellard | // unknown_command:
|
1001 | 858693c6 | bellard | /* put empty packet */
|
1002 | 858693c6 | bellard | buf[0] = '\0'; |
1003 | 858693c6 | bellard | put_packet(s, buf); |
1004 | 858693c6 | bellard | break;
|
1005 | 858693c6 | bellard | } |
1006 | 858693c6 | bellard | return RS_IDLE;
|
1007 | 858693c6 | bellard | } |
1008 | 858693c6 | bellard | |
1009 | 612458f5 | bellard | extern void tb_flush(CPUState *env); |
1010 | 612458f5 | bellard | |
1011 | 1fddef4b | bellard | #ifndef CONFIG_USER_ONLY
|
1012 | 858693c6 | bellard | static void gdb_vm_stopped(void *opaque, int reason) |
1013 | 858693c6 | bellard | { |
1014 | 858693c6 | bellard | GDBState *s = opaque; |
1015 | 858693c6 | bellard | char buf[256]; |
1016 | 858693c6 | bellard | int ret;
|
1017 | 858693c6 | bellard | |
1018 | a2d1ebaf | pbrook | if (s->state == RS_SYSCALL)
|
1019 | a2d1ebaf | pbrook | return;
|
1020 | a2d1ebaf | pbrook | |
1021 | 858693c6 | bellard | /* disable single step if it was enable */
|
1022 | 6a00d601 | bellard | cpu_single_step(s->env, 0);
|
1023 | 858693c6 | bellard | |
1024 | e80cfcfc | bellard | if (reason == EXCP_DEBUG) {
|
1025 | 6658ffb8 | pbrook | if (s->env->watchpoint_hit) {
|
1026 | aa6290b7 | pbrook | snprintf(buf, sizeof(buf), "T%02xwatch:" TARGET_FMT_lx ";", |
1027 | aa6290b7 | pbrook | SIGTRAP, |
1028 | 6658ffb8 | pbrook | s->env->watchpoint[s->env->watchpoint_hit - 1].vaddr);
|
1029 | 6658ffb8 | pbrook | put_packet(s, buf); |
1030 | 6658ffb8 | pbrook | s->env->watchpoint_hit = 0;
|
1031 | 6658ffb8 | pbrook | return;
|
1032 | 6658ffb8 | pbrook | } |
1033 | 6a00d601 | bellard | tb_flush(s->env); |
1034 | 858693c6 | bellard | ret = SIGTRAP; |
1035 | bbeb7b5c | bellard | } else if (reason == EXCP_INTERRUPT) { |
1036 | bbeb7b5c | bellard | ret = SIGINT; |
1037 | bbeb7b5c | bellard | } else {
|
1038 | 858693c6 | bellard | ret = 0;
|
1039 | bbeb7b5c | bellard | } |
1040 | 858693c6 | bellard | snprintf(buf, sizeof(buf), "S%02x", ret); |
1041 | 858693c6 | bellard | put_packet(s, buf); |
1042 | 858693c6 | bellard | } |
1043 | 1fddef4b | bellard | #endif
|
1044 | 858693c6 | bellard | |
1045 | a2d1ebaf | pbrook | /* Send a gdb syscall request.
|
1046 | a2d1ebaf | pbrook | This accepts limited printf-style format specifiers, specifically:
|
1047 | a87295e8 | pbrook | %x - target_ulong argument printed in hex.
|
1048 | a87295e8 | pbrook | %lx - 64-bit argument printed in hex.
|
1049 | a87295e8 | pbrook | %s - string pointer (target_ulong) and length (int) pair. */
|
1050 | a2d1ebaf | pbrook | void gdb_do_syscall(gdb_syscall_complete_cb cb, char *fmt, ...) |
1051 | a2d1ebaf | pbrook | { |
1052 | a2d1ebaf | pbrook | va_list va; |
1053 | a2d1ebaf | pbrook | char buf[256]; |
1054 | a2d1ebaf | pbrook | char *p;
|
1055 | a2d1ebaf | pbrook | target_ulong addr; |
1056 | a87295e8 | pbrook | uint64_t i64; |
1057 | a2d1ebaf | pbrook | GDBState *s; |
1058 | a2d1ebaf | pbrook | |
1059 | a2d1ebaf | pbrook | s = gdb_syscall_state; |
1060 | a2d1ebaf | pbrook | if (!s)
|
1061 | a2d1ebaf | pbrook | return;
|
1062 | a2d1ebaf | pbrook | gdb_current_syscall_cb = cb; |
1063 | a2d1ebaf | pbrook | s->state = RS_SYSCALL; |
1064 | a2d1ebaf | pbrook | #ifndef CONFIG_USER_ONLY
|
1065 | a2d1ebaf | pbrook | vm_stop(EXCP_DEBUG); |
1066 | a2d1ebaf | pbrook | #endif
|
1067 | a2d1ebaf | pbrook | s->state = RS_IDLE; |
1068 | a2d1ebaf | pbrook | va_start(va, fmt); |
1069 | a2d1ebaf | pbrook | p = buf; |
1070 | a2d1ebaf | pbrook | *(p++) = 'F';
|
1071 | a2d1ebaf | pbrook | while (*fmt) {
|
1072 | a2d1ebaf | pbrook | if (*fmt == '%') { |
1073 | a2d1ebaf | pbrook | fmt++; |
1074 | a2d1ebaf | pbrook | switch (*fmt++) {
|
1075 | a2d1ebaf | pbrook | case 'x': |
1076 | a2d1ebaf | pbrook | addr = va_arg(va, target_ulong); |
1077 | a2d1ebaf | pbrook | p += sprintf(p, TARGET_FMT_lx, addr); |
1078 | a2d1ebaf | pbrook | break;
|
1079 | a87295e8 | pbrook | case 'l': |
1080 | a87295e8 | pbrook | if (*(fmt++) != 'x') |
1081 | a87295e8 | pbrook | goto bad_format;
|
1082 | a87295e8 | pbrook | i64 = va_arg(va, uint64_t); |
1083 | a87295e8 | pbrook | p += sprintf(p, "%" PRIx64, i64);
|
1084 | a87295e8 | pbrook | break;
|
1085 | a2d1ebaf | pbrook | case 's': |
1086 | a2d1ebaf | pbrook | addr = va_arg(va, target_ulong); |
1087 | a2d1ebaf | pbrook | p += sprintf(p, TARGET_FMT_lx "/%x", addr, va_arg(va, int)); |
1088 | a2d1ebaf | pbrook | break;
|
1089 | a2d1ebaf | pbrook | default:
|
1090 | a87295e8 | pbrook | bad_format:
|
1091 | a2d1ebaf | pbrook | fprintf(stderr, "gdbstub: Bad syscall format string '%s'\n",
|
1092 | a2d1ebaf | pbrook | fmt - 1);
|
1093 | a2d1ebaf | pbrook | break;
|
1094 | a2d1ebaf | pbrook | } |
1095 | a2d1ebaf | pbrook | } else {
|
1096 | a2d1ebaf | pbrook | *(p++) = *(fmt++); |
1097 | a2d1ebaf | pbrook | } |
1098 | a2d1ebaf | pbrook | } |
1099 | 8a93e02a | pbrook | *p = 0;
|
1100 | a2d1ebaf | pbrook | va_end(va); |
1101 | a2d1ebaf | pbrook | put_packet(s, buf); |
1102 | a2d1ebaf | pbrook | #ifdef CONFIG_USER_ONLY
|
1103 | a2d1ebaf | pbrook | gdb_handlesig(s->env, 0);
|
1104 | a2d1ebaf | pbrook | #else
|
1105 | a2d1ebaf | pbrook | cpu_interrupt(s->env, CPU_INTERRUPT_EXIT); |
1106 | a2d1ebaf | pbrook | #endif
|
1107 | a2d1ebaf | pbrook | } |
1108 | a2d1ebaf | pbrook | |
1109 | 6a00d601 | bellard | static void gdb_read_byte(GDBState *s, int ch) |
1110 | 858693c6 | bellard | { |
1111 | 6a00d601 | bellard | CPUState *env = s->env; |
1112 | 858693c6 | bellard | int i, csum;
|
1113 | 858693c6 | bellard | char reply[1]; |
1114 | 858693c6 | bellard | |
1115 | 1fddef4b | bellard | #ifndef CONFIG_USER_ONLY
|
1116 | 4046d913 | pbrook | if (s->last_packet_len) {
|
1117 | 4046d913 | pbrook | /* Waiting for a response to the last packet. If we see the start
|
1118 | 4046d913 | pbrook | of a new command then abandon the previous response. */
|
1119 | 4046d913 | pbrook | if (ch == '-') { |
1120 | 4046d913 | pbrook | #ifdef DEBUG_GDB
|
1121 | 4046d913 | pbrook | printf("Got NACK, retransmitting\n");
|
1122 | 4046d913 | pbrook | #endif
|
1123 | 4046d913 | pbrook | put_buffer(s, s->last_packet, s->last_packet_len); |
1124 | 4046d913 | pbrook | } |
1125 | 4046d913 | pbrook | #ifdef DEBUG_GDB
|
1126 | 4046d913 | pbrook | else if (ch == '+') |
1127 | 4046d913 | pbrook | printf("Got ACK\n");
|
1128 | 4046d913 | pbrook | else
|
1129 | 4046d913 | pbrook | printf("Got '%c' when expecting ACK/NACK\n", ch);
|
1130 | 4046d913 | pbrook | #endif
|
1131 | 4046d913 | pbrook | if (ch == '+' || ch == '$') |
1132 | 4046d913 | pbrook | s->last_packet_len = 0;
|
1133 | 4046d913 | pbrook | if (ch != '$') |
1134 | 4046d913 | pbrook | return;
|
1135 | 4046d913 | pbrook | } |
1136 | 858693c6 | bellard | if (vm_running) {
|
1137 | 858693c6 | bellard | /* when the CPU is running, we cannot do anything except stop
|
1138 | 858693c6 | bellard | it when receiving a char */
|
1139 | 858693c6 | bellard | vm_stop(EXCP_INTERRUPT); |
1140 | 5fafdf24 | ths | } else
|
1141 | 1fddef4b | bellard | #endif
|
1142 | 41625033 | bellard | { |
1143 | 858693c6 | bellard | switch(s->state) {
|
1144 | 858693c6 | bellard | case RS_IDLE:
|
1145 | 858693c6 | bellard | if (ch == '$') { |
1146 | 858693c6 | bellard | s->line_buf_index = 0;
|
1147 | 858693c6 | bellard | s->state = RS_GETLINE; |
1148 | c33a346e | bellard | } |
1149 | b4608c04 | bellard | break;
|
1150 | 858693c6 | bellard | case RS_GETLINE:
|
1151 | 858693c6 | bellard | if (ch == '#') { |
1152 | 858693c6 | bellard | s->state = RS_CHKSUM1; |
1153 | 858693c6 | bellard | } else if (s->line_buf_index >= sizeof(s->line_buf) - 1) { |
1154 | 858693c6 | bellard | s->state = RS_IDLE; |
1155 | 4c3a88a2 | bellard | } else {
|
1156 | 858693c6 | bellard | s->line_buf[s->line_buf_index++] = ch; |
1157 | 4c3a88a2 | bellard | } |
1158 | 4c3a88a2 | bellard | break;
|
1159 | 858693c6 | bellard | case RS_CHKSUM1:
|
1160 | 858693c6 | bellard | s->line_buf[s->line_buf_index] = '\0';
|
1161 | 858693c6 | bellard | s->line_csum = fromhex(ch) << 4;
|
1162 | 858693c6 | bellard | s->state = RS_CHKSUM2; |
1163 | 858693c6 | bellard | break;
|
1164 | 858693c6 | bellard | case RS_CHKSUM2:
|
1165 | 858693c6 | bellard | s->line_csum |= fromhex(ch); |
1166 | 858693c6 | bellard | csum = 0;
|
1167 | 858693c6 | bellard | for(i = 0; i < s->line_buf_index; i++) { |
1168 | 858693c6 | bellard | csum += s->line_buf[i]; |
1169 | 858693c6 | bellard | } |
1170 | 858693c6 | bellard | if (s->line_csum != (csum & 0xff)) { |
1171 | 858693c6 | bellard | reply[0] = '-'; |
1172 | 858693c6 | bellard | put_buffer(s, reply, 1);
|
1173 | 858693c6 | bellard | s->state = RS_IDLE; |
1174 | 4c3a88a2 | bellard | } else {
|
1175 | 858693c6 | bellard | reply[0] = '+'; |
1176 | 858693c6 | bellard | put_buffer(s, reply, 1);
|
1177 | 1fddef4b | bellard | s->state = gdb_handle_packet(s, env, s->line_buf); |
1178 | 4c3a88a2 | bellard | } |
1179 | 4c3a88a2 | bellard | break;
|
1180 | a2d1ebaf | pbrook | default:
|
1181 | a2d1ebaf | pbrook | abort(); |
1182 | 858693c6 | bellard | } |
1183 | 858693c6 | bellard | } |
1184 | 858693c6 | bellard | } |
1185 | 858693c6 | bellard | |
1186 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
|
1187 | 1fddef4b | bellard | int
|
1188 | 1fddef4b | bellard | gdb_handlesig (CPUState *env, int sig)
|
1189 | 1fddef4b | bellard | { |
1190 | 1fddef4b | bellard | GDBState *s; |
1191 | 1fddef4b | bellard | char buf[256]; |
1192 | 1fddef4b | bellard | int n;
|
1193 | 1fddef4b | bellard | |
1194 | 1fddef4b | bellard | if (gdbserver_fd < 0) |
1195 | 1fddef4b | bellard | return sig;
|
1196 | 1fddef4b | bellard | |
1197 | 1fddef4b | bellard | s = &gdbserver_state; |
1198 | 1fddef4b | bellard | |
1199 | 1fddef4b | bellard | /* disable single step if it was enabled */
|
1200 | 1fddef4b | bellard | cpu_single_step(env, 0);
|
1201 | 1fddef4b | bellard | tb_flush(env); |
1202 | 1fddef4b | bellard | |
1203 | 1fddef4b | bellard | if (sig != 0) |
1204 | 1fddef4b | bellard | { |
1205 | 1fddef4b | bellard | snprintf(buf, sizeof(buf), "S%02x", sig); |
1206 | 1fddef4b | bellard | put_packet(s, buf); |
1207 | 1fddef4b | bellard | } |
1208 | 1fddef4b | bellard | |
1209 | 1fddef4b | bellard | sig = 0;
|
1210 | 1fddef4b | bellard | s->state = RS_IDLE; |
1211 | 41625033 | bellard | s->running_state = 0;
|
1212 | 41625033 | bellard | while (s->running_state == 0) { |
1213 | 1fddef4b | bellard | n = read (s->fd, buf, 256);
|
1214 | 1fddef4b | bellard | if (n > 0) |
1215 | 1fddef4b | bellard | { |
1216 | 1fddef4b | bellard | int i;
|
1217 | 1fddef4b | bellard | |
1218 | 1fddef4b | bellard | for (i = 0; i < n; i++) |
1219 | 6a00d601 | bellard | gdb_read_byte (s, buf[i]); |
1220 | 1fddef4b | bellard | } |
1221 | 1fddef4b | bellard | else if (n == 0 || errno != EAGAIN) |
1222 | 1fddef4b | bellard | { |
1223 | 1fddef4b | bellard | /* XXX: Connection closed. Should probably wait for annother
|
1224 | 1fddef4b | bellard | connection before continuing. */
|
1225 | 1fddef4b | bellard | return sig;
|
1226 | 1fddef4b | bellard | } |
1227 | 41625033 | bellard | } |
1228 | 1fddef4b | bellard | return sig;
|
1229 | 1fddef4b | bellard | } |
1230 | e9009676 | bellard | |
1231 | e9009676 | bellard | /* Tell the remote gdb that the process has exited. */
|
1232 | e9009676 | bellard | void gdb_exit(CPUState *env, int code) |
1233 | e9009676 | bellard | { |
1234 | e9009676 | bellard | GDBState *s; |
1235 | e9009676 | bellard | char buf[4]; |
1236 | e9009676 | bellard | |
1237 | e9009676 | bellard | if (gdbserver_fd < 0) |
1238 | e9009676 | bellard | return;
|
1239 | e9009676 | bellard | |
1240 | e9009676 | bellard | s = &gdbserver_state; |
1241 | e9009676 | bellard | |
1242 | e9009676 | bellard | snprintf(buf, sizeof(buf), "W%02x", code); |
1243 | e9009676 | bellard | put_packet(s, buf); |
1244 | e9009676 | bellard | } |
1245 | e9009676 | bellard | |
1246 | 1fddef4b | bellard | |
1247 | 7c9d8e07 | bellard | static void gdb_accept(void *opaque) |
1248 | 858693c6 | bellard | { |
1249 | 858693c6 | bellard | GDBState *s; |
1250 | 858693c6 | bellard | struct sockaddr_in sockaddr;
|
1251 | 858693c6 | bellard | socklen_t len; |
1252 | 858693c6 | bellard | int val, fd;
|
1253 | 858693c6 | bellard | |
1254 | 858693c6 | bellard | for(;;) {
|
1255 | 858693c6 | bellard | len = sizeof(sockaddr);
|
1256 | 858693c6 | bellard | fd = accept(gdbserver_fd, (struct sockaddr *)&sockaddr, &len);
|
1257 | 858693c6 | bellard | if (fd < 0 && errno != EINTR) { |
1258 | 858693c6 | bellard | perror("accept");
|
1259 | 858693c6 | bellard | return;
|
1260 | 858693c6 | bellard | } else if (fd >= 0) { |
1261 | b4608c04 | bellard | break;
|
1262 | b4608c04 | bellard | } |
1263 | b4608c04 | bellard | } |
1264 | 858693c6 | bellard | |
1265 | 858693c6 | bellard | /* set short latency */
|
1266 | 858693c6 | bellard | val = 1;
|
1267 | 8f447cc7 | bellard | setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
1268 | 3b46e624 | ths | |
1269 | 1fddef4b | bellard | s = &gdbserver_state; |
1270 | 1fddef4b | bellard | memset (s, 0, sizeof (GDBState)); |
1271 | 6a00d601 | bellard | s->env = first_cpu; /* XXX: allow to change CPU */
|
1272 | 858693c6 | bellard | s->fd = fd; |
1273 | 858693c6 | bellard | |
1274 | a2d1ebaf | pbrook | gdb_syscall_state = s; |
1275 | a2d1ebaf | pbrook | |
1276 | 858693c6 | bellard | fcntl(fd, F_SETFL, O_NONBLOCK); |
1277 | 858693c6 | bellard | } |
1278 | 858693c6 | bellard | |
1279 | 858693c6 | bellard | static int gdbserver_open(int port) |
1280 | 858693c6 | bellard | { |
1281 | 858693c6 | bellard | struct sockaddr_in sockaddr;
|
1282 | 858693c6 | bellard | int fd, val, ret;
|
1283 | 858693c6 | bellard | |
1284 | 858693c6 | bellard | fd = socket(PF_INET, SOCK_STREAM, 0);
|
1285 | 858693c6 | bellard | if (fd < 0) { |
1286 | 858693c6 | bellard | perror("socket");
|
1287 | 858693c6 | bellard | return -1; |
1288 | 858693c6 | bellard | } |
1289 | 858693c6 | bellard | |
1290 | 858693c6 | bellard | /* allow fast reuse */
|
1291 | 858693c6 | bellard | val = 1;
|
1292 | 8f447cc7 | bellard | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&val, sizeof(val)); |
1293 | 858693c6 | bellard | |
1294 | 858693c6 | bellard | sockaddr.sin_family = AF_INET; |
1295 | 858693c6 | bellard | sockaddr.sin_port = htons(port); |
1296 | 858693c6 | bellard | sockaddr.sin_addr.s_addr = 0;
|
1297 | 858693c6 | bellard | ret = bind(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)); |
1298 | 858693c6 | bellard | if (ret < 0) { |
1299 | 858693c6 | bellard | perror("bind");
|
1300 | 858693c6 | bellard | return -1; |
1301 | 858693c6 | bellard | } |
1302 | 858693c6 | bellard | ret = listen(fd, 0);
|
1303 | 858693c6 | bellard | if (ret < 0) { |
1304 | 858693c6 | bellard | perror("listen");
|
1305 | 858693c6 | bellard | return -1; |
1306 | 858693c6 | bellard | } |
1307 | 858693c6 | bellard | return fd;
|
1308 | 858693c6 | bellard | } |
1309 | 858693c6 | bellard | |
1310 | 858693c6 | bellard | int gdbserver_start(int port) |
1311 | 858693c6 | bellard | { |
1312 | 858693c6 | bellard | gdbserver_fd = gdbserver_open(port); |
1313 | 858693c6 | bellard | if (gdbserver_fd < 0) |
1314 | 858693c6 | bellard | return -1; |
1315 | 858693c6 | bellard | /* accept connections */
|
1316 | 7c9d8e07 | bellard | gdb_accept (NULL);
|
1317 | 4046d913 | pbrook | return 0; |
1318 | 4046d913 | pbrook | } |
1319 | 1fddef4b | bellard | #else
|
1320 | aa1f17c1 | ths | static int gdb_chr_can_receive(void *opaque) |
1321 | 4046d913 | pbrook | { |
1322 | 4046d913 | pbrook | return 1; |
1323 | 4046d913 | pbrook | } |
1324 | 4046d913 | pbrook | |
1325 | aa1f17c1 | ths | static void gdb_chr_receive(void *opaque, const uint8_t *buf, int size) |
1326 | 4046d913 | pbrook | { |
1327 | 4046d913 | pbrook | GDBState *s = opaque; |
1328 | 4046d913 | pbrook | int i;
|
1329 | 4046d913 | pbrook | |
1330 | 4046d913 | pbrook | for (i = 0; i < size; i++) { |
1331 | 4046d913 | pbrook | gdb_read_byte(s, buf[i]); |
1332 | 4046d913 | pbrook | } |
1333 | 4046d913 | pbrook | } |
1334 | 4046d913 | pbrook | |
1335 | 4046d913 | pbrook | static void gdb_chr_event(void *opaque, int event) |
1336 | 4046d913 | pbrook | { |
1337 | 4046d913 | pbrook | switch (event) {
|
1338 | 4046d913 | pbrook | case CHR_EVENT_RESET:
|
1339 | 4046d913 | pbrook | vm_stop(EXCP_INTERRUPT); |
1340 | a2d1ebaf | pbrook | gdb_syscall_state = opaque; |
1341 | 4046d913 | pbrook | break;
|
1342 | 4046d913 | pbrook | default:
|
1343 | 4046d913 | pbrook | break;
|
1344 | 4046d913 | pbrook | } |
1345 | 4046d913 | pbrook | } |
1346 | 4046d913 | pbrook | |
1347 | cfc3475a | pbrook | int gdbserver_start(const char *port) |
1348 | 4046d913 | pbrook | { |
1349 | 4046d913 | pbrook | GDBState *s; |
1350 | cfc3475a | pbrook | char gdbstub_port_name[128]; |
1351 | cfc3475a | pbrook | int port_num;
|
1352 | cfc3475a | pbrook | char *p;
|
1353 | cfc3475a | pbrook | CharDriverState *chr; |
1354 | cfc3475a | pbrook | |
1355 | cfc3475a | pbrook | if (!port || !*port)
|
1356 | cfc3475a | pbrook | return -1; |
1357 | 4046d913 | pbrook | |
1358 | cfc3475a | pbrook | port_num = strtol(port, &p, 10);
|
1359 | cfc3475a | pbrook | if (*p == 0) { |
1360 | cfc3475a | pbrook | /* A numeric value is interpreted as a port number. */
|
1361 | cfc3475a | pbrook | snprintf(gdbstub_port_name, sizeof(gdbstub_port_name),
|
1362 | cfc3475a | pbrook | "tcp::%d,nowait,nodelay,server", port_num);
|
1363 | cfc3475a | pbrook | port = gdbstub_port_name; |
1364 | cfc3475a | pbrook | } |
1365 | cfc3475a | pbrook | |
1366 | cfc3475a | pbrook | chr = qemu_chr_open(port); |
1367 | 4046d913 | pbrook | if (!chr)
|
1368 | 4046d913 | pbrook | return -1; |
1369 | 4046d913 | pbrook | |
1370 | 4046d913 | pbrook | s = qemu_mallocz(sizeof(GDBState));
|
1371 | 4046d913 | pbrook | if (!s) {
|
1372 | 4046d913 | pbrook | return -1; |
1373 | 4046d913 | pbrook | } |
1374 | 4046d913 | pbrook | s->env = first_cpu; /* XXX: allow to change CPU */
|
1375 | 4046d913 | pbrook | s->chr = chr; |
1376 | aa1f17c1 | ths | qemu_chr_add_handlers(chr, gdb_chr_can_receive, gdb_chr_receive, |
1377 | 4046d913 | pbrook | gdb_chr_event, s); |
1378 | 4046d913 | pbrook | qemu_add_vm_stop_handler(gdb_vm_stopped, s); |
1379 | b4608c04 | bellard | return 0; |
1380 | b4608c04 | bellard | } |
1381 | 4046d913 | pbrook | #endif |