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1 | b4608c04 | bellard | /*
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2 | b4608c04 | bellard | * gdb server stub
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3 | b4608c04 | bellard | *
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4 | 3475187d | bellard | * Copyright (c) 2003-2005 Fabrice Bellard
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5 | b4608c04 | bellard | *
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6 | b4608c04 | bellard | * This library is free software; you can redistribute it and/or
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7 | b4608c04 | bellard | * modify it under the terms of the GNU Lesser General Public
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8 | b4608c04 | bellard | * License as published by the Free Software Foundation; either
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9 | b4608c04 | bellard | * version 2 of the License, or (at your option) any later version.
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10 | b4608c04 | bellard | *
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11 | b4608c04 | bellard | * This library is distributed in the hope that it will be useful,
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12 | b4608c04 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | b4608c04 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | b4608c04 | bellard | * Lesser General Public License for more details.
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15 | b4608c04 | bellard | *
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16 | b4608c04 | bellard | * You should have received a copy of the GNU Lesser General Public
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17 | b4608c04 | bellard | * License along with this library; if not, write to the Free Software
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18 | b4608c04 | bellard | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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19 | b4608c04 | bellard | */
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20 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
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21 | 1fddef4b | bellard | #include <stdlib.h> |
22 | 1fddef4b | bellard | #include <stdio.h> |
23 | 1fddef4b | bellard | #include <stdarg.h> |
24 | 1fddef4b | bellard | #include <string.h> |
25 | 1fddef4b | bellard | #include <errno.h> |
26 | 1fddef4b | bellard | #include <unistd.h> |
27 | 1fddef4b | bellard | |
28 | 1fddef4b | bellard | #include "qemu.h" |
29 | 1fddef4b | bellard | #else
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30 | 67b915a5 | bellard | #include "vl.h" |
31 | 1fddef4b | bellard | #endif
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32 | 67b915a5 | bellard | |
33 | b4608c04 | bellard | #include <sys/socket.h> |
34 | b4608c04 | bellard | #include <netinet/in.h> |
35 | b4608c04 | bellard | #include <netinet/tcp.h> |
36 | b4608c04 | bellard | #include <signal.h> |
37 | b4608c04 | bellard | |
38 | 4abe615b | bellard | //#define DEBUG_GDB
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39 | b4608c04 | bellard | |
40 | 858693c6 | bellard | enum RSState {
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41 | 858693c6 | bellard | RS_IDLE, |
42 | 858693c6 | bellard | RS_GETLINE, |
43 | 858693c6 | bellard | RS_CHKSUM1, |
44 | 858693c6 | bellard | RS_CHKSUM2, |
45 | 858693c6 | bellard | }; |
46 | 1fddef4b | bellard | /* XXX: This is not thread safe. Do we care? */
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47 | 1fddef4b | bellard | static int gdbserver_fd = -1; |
48 | b4608c04 | bellard | |
49 | 858693c6 | bellard | typedef struct GDBState { |
50 | 6a00d601 | bellard | CPUState *env; /* current CPU */
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51 | 41625033 | bellard | enum RSState state; /* parsing state */ |
52 | 858693c6 | bellard | int fd;
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53 | 858693c6 | bellard | char line_buf[4096]; |
54 | 858693c6 | bellard | int line_buf_index;
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55 | 858693c6 | bellard | int line_csum;
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56 | 41625033 | bellard | #ifdef CONFIG_USER_ONLY
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57 | 41625033 | bellard | int running_state;
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58 | 41625033 | bellard | #endif
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59 | 858693c6 | bellard | } GDBState; |
60 | b4608c04 | bellard | |
61 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
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62 | 1fddef4b | bellard | /* XXX: remove this hack. */
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63 | 1fddef4b | bellard | static GDBState gdbserver_state;
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64 | 1fddef4b | bellard | #endif
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65 | 1fddef4b | bellard | |
66 | 858693c6 | bellard | static int get_char(GDBState *s) |
67 | b4608c04 | bellard | { |
68 | b4608c04 | bellard | uint8_t ch; |
69 | b4608c04 | bellard | int ret;
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70 | b4608c04 | bellard | |
71 | b4608c04 | bellard | for(;;) {
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72 | 858693c6 | bellard | ret = read(s->fd, &ch, 1);
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73 | b4608c04 | bellard | if (ret < 0) { |
74 | b4608c04 | bellard | if (errno != EINTR && errno != EAGAIN)
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75 | b4608c04 | bellard | return -1; |
76 | b4608c04 | bellard | } else if (ret == 0) { |
77 | b4608c04 | bellard | return -1; |
78 | b4608c04 | bellard | } else {
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79 | b4608c04 | bellard | break;
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80 | b4608c04 | bellard | } |
81 | b4608c04 | bellard | } |
82 | b4608c04 | bellard | return ch;
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83 | b4608c04 | bellard | } |
84 | b4608c04 | bellard | |
85 | 858693c6 | bellard | static void put_buffer(GDBState *s, const uint8_t *buf, int len) |
86 | b4608c04 | bellard | { |
87 | b4608c04 | bellard | int ret;
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88 | b4608c04 | bellard | |
89 | b4608c04 | bellard | while (len > 0) { |
90 | 858693c6 | bellard | ret = write(s->fd, buf, len); |
91 | b4608c04 | bellard | if (ret < 0) { |
92 | b4608c04 | bellard | if (errno != EINTR && errno != EAGAIN)
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93 | b4608c04 | bellard | return;
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94 | b4608c04 | bellard | } else {
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95 | b4608c04 | bellard | buf += ret; |
96 | b4608c04 | bellard | len -= ret; |
97 | b4608c04 | bellard | } |
98 | b4608c04 | bellard | } |
99 | b4608c04 | bellard | } |
100 | b4608c04 | bellard | |
101 | b4608c04 | bellard | static inline int fromhex(int v) |
102 | b4608c04 | bellard | { |
103 | b4608c04 | bellard | if (v >= '0' && v <= '9') |
104 | b4608c04 | bellard | return v - '0'; |
105 | b4608c04 | bellard | else if (v >= 'A' && v <= 'F') |
106 | b4608c04 | bellard | return v - 'A' + 10; |
107 | b4608c04 | bellard | else if (v >= 'a' && v <= 'f') |
108 | b4608c04 | bellard | return v - 'a' + 10; |
109 | b4608c04 | bellard | else
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110 | b4608c04 | bellard | return 0; |
111 | b4608c04 | bellard | } |
112 | b4608c04 | bellard | |
113 | b4608c04 | bellard | static inline int tohex(int v) |
114 | b4608c04 | bellard | { |
115 | b4608c04 | bellard | if (v < 10) |
116 | b4608c04 | bellard | return v + '0'; |
117 | b4608c04 | bellard | else
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118 | b4608c04 | bellard | return v - 10 + 'a'; |
119 | b4608c04 | bellard | } |
120 | b4608c04 | bellard | |
121 | b4608c04 | bellard | static void memtohex(char *buf, const uint8_t *mem, int len) |
122 | b4608c04 | bellard | { |
123 | b4608c04 | bellard | int i, c;
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124 | b4608c04 | bellard | char *q;
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125 | b4608c04 | bellard | q = buf; |
126 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
127 | b4608c04 | bellard | c = mem[i]; |
128 | b4608c04 | bellard | *q++ = tohex(c >> 4);
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129 | b4608c04 | bellard | *q++ = tohex(c & 0xf);
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130 | b4608c04 | bellard | } |
131 | b4608c04 | bellard | *q = '\0';
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132 | b4608c04 | bellard | } |
133 | b4608c04 | bellard | |
134 | b4608c04 | bellard | static void hextomem(uint8_t *mem, const char *buf, int len) |
135 | b4608c04 | bellard | { |
136 | b4608c04 | bellard | int i;
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137 | b4608c04 | bellard | |
138 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
139 | b4608c04 | bellard | mem[i] = (fromhex(buf[0]) << 4) | fromhex(buf[1]); |
140 | b4608c04 | bellard | buf += 2;
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141 | b4608c04 | bellard | } |
142 | b4608c04 | bellard | } |
143 | b4608c04 | bellard | |
144 | b4608c04 | bellard | /* return -1 if error, 0 if OK */
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145 | 858693c6 | bellard | static int put_packet(GDBState *s, char *buf) |
146 | b4608c04 | bellard | { |
147 | b4608c04 | bellard | char buf1[3]; |
148 | b4608c04 | bellard | int len, csum, ch, i;
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149 | b4608c04 | bellard | |
150 | b4608c04 | bellard | #ifdef DEBUG_GDB
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151 | b4608c04 | bellard | printf("reply='%s'\n", buf);
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152 | b4608c04 | bellard | #endif
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153 | b4608c04 | bellard | |
154 | b4608c04 | bellard | for(;;) {
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155 | b4608c04 | bellard | buf1[0] = '$'; |
156 | 858693c6 | bellard | put_buffer(s, buf1, 1);
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157 | b4608c04 | bellard | len = strlen(buf); |
158 | 858693c6 | bellard | put_buffer(s, buf, len); |
159 | b4608c04 | bellard | csum = 0;
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160 | b4608c04 | bellard | for(i = 0; i < len; i++) { |
161 | b4608c04 | bellard | csum += buf[i]; |
162 | b4608c04 | bellard | } |
163 | b4608c04 | bellard | buf1[0] = '#'; |
164 | b4608c04 | bellard | buf1[1] = tohex((csum >> 4) & 0xf); |
165 | b4608c04 | bellard | buf1[2] = tohex((csum) & 0xf); |
166 | b4608c04 | bellard | |
167 | 858693c6 | bellard | put_buffer(s, buf1, 3);
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168 | b4608c04 | bellard | |
169 | 858693c6 | bellard | ch = get_char(s); |
170 | b4608c04 | bellard | if (ch < 0) |
171 | b4608c04 | bellard | return -1; |
172 | b4608c04 | bellard | if (ch == '+') |
173 | b4608c04 | bellard | break;
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174 | b4608c04 | bellard | } |
175 | b4608c04 | bellard | return 0; |
176 | b4608c04 | bellard | } |
177 | b4608c04 | bellard | |
178 | 6da41eaf | bellard | #if defined(TARGET_I386)
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179 | 6da41eaf | bellard | |
180 | 6da41eaf | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
181 | 6da41eaf | bellard | { |
182 | e95c8d51 | bellard | uint32_t *registers = (uint32_t *)mem_buf; |
183 | 6da41eaf | bellard | int i, fpus;
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184 | 6da41eaf | bellard | |
185 | 6da41eaf | bellard | for(i = 0; i < 8; i++) { |
186 | e95c8d51 | bellard | registers[i] = env->regs[i]; |
187 | 6da41eaf | bellard | } |
188 | e95c8d51 | bellard | registers[8] = env->eip;
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189 | e95c8d51 | bellard | registers[9] = env->eflags;
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190 | e95c8d51 | bellard | registers[10] = env->segs[R_CS].selector;
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191 | e95c8d51 | bellard | registers[11] = env->segs[R_SS].selector;
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192 | e95c8d51 | bellard | registers[12] = env->segs[R_DS].selector;
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193 | e95c8d51 | bellard | registers[13] = env->segs[R_ES].selector;
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194 | e95c8d51 | bellard | registers[14] = env->segs[R_FS].selector;
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195 | e95c8d51 | bellard | registers[15] = env->segs[R_GS].selector;
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196 | 6da41eaf | bellard | /* XXX: convert floats */
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197 | 6da41eaf | bellard | for(i = 0; i < 8; i++) { |
198 | 6da41eaf | bellard | memcpy(mem_buf + 16 * 4 + i * 10, &env->fpregs[i], 10); |
199 | 6da41eaf | bellard | } |
200 | e95c8d51 | bellard | registers[36] = env->fpuc;
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201 | 6da41eaf | bellard | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
202 | e95c8d51 | bellard | registers[37] = fpus;
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203 | e95c8d51 | bellard | registers[38] = 0; /* XXX: convert tags */ |
204 | e95c8d51 | bellard | registers[39] = 0; /* fiseg */ |
205 | e95c8d51 | bellard | registers[40] = 0; /* fioff */ |
206 | e95c8d51 | bellard | registers[41] = 0; /* foseg */ |
207 | e95c8d51 | bellard | registers[42] = 0; /* fooff */ |
208 | e95c8d51 | bellard | registers[43] = 0; /* fop */ |
209 | e95c8d51 | bellard | |
210 | e95c8d51 | bellard | for(i = 0; i < 16; i++) |
211 | e95c8d51 | bellard | tswapls(®isters[i]); |
212 | e95c8d51 | bellard | for(i = 36; i < 44; i++) |
213 | e95c8d51 | bellard | tswapls(®isters[i]); |
214 | 6da41eaf | bellard | return 44 * 4; |
215 | 6da41eaf | bellard | } |
216 | 6da41eaf | bellard | |
217 | 6da41eaf | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
218 | 6da41eaf | bellard | { |
219 | 6da41eaf | bellard | uint32_t *registers = (uint32_t *)mem_buf; |
220 | 6da41eaf | bellard | int i;
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221 | 6da41eaf | bellard | |
222 | 6da41eaf | bellard | for(i = 0; i < 8; i++) { |
223 | 6da41eaf | bellard | env->regs[i] = tswapl(registers[i]); |
224 | 6da41eaf | bellard | } |
225 | e95c8d51 | bellard | env->eip = tswapl(registers[8]);
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226 | e95c8d51 | bellard | env->eflags = tswapl(registers[9]);
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227 | 6da41eaf | bellard | #if defined(CONFIG_USER_ONLY)
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228 | 6da41eaf | bellard | #define LOAD_SEG(index, sreg)\
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229 | 6da41eaf | bellard | if (tswapl(registers[index]) != env->segs[sreg].selector)\
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230 | 6da41eaf | bellard | cpu_x86_load_seg(env, sreg, tswapl(registers[index])); |
231 | 6da41eaf | bellard | LOAD_SEG(10, R_CS);
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232 | 6da41eaf | bellard | LOAD_SEG(11, R_SS);
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233 | 6da41eaf | bellard | LOAD_SEG(12, R_DS);
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234 | 6da41eaf | bellard | LOAD_SEG(13, R_ES);
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235 | 6da41eaf | bellard | LOAD_SEG(14, R_FS);
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236 | 6da41eaf | bellard | LOAD_SEG(15, R_GS);
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237 | 6da41eaf | bellard | #endif
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238 | 6da41eaf | bellard | } |
239 | 6da41eaf | bellard | |
240 | 9e62fd7f | bellard | #elif defined (TARGET_PPC)
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241 | 9e62fd7f | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
242 | 9e62fd7f | bellard | { |
243 | a541f297 | bellard | uint32_t *registers = (uint32_t *)mem_buf, tmp; |
244 | 9e62fd7f | bellard | int i;
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245 | 9e62fd7f | bellard | |
246 | 9e62fd7f | bellard | /* fill in gprs */
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247 | a541f297 | bellard | for(i = 0; i < 32; i++) { |
248 | e95c8d51 | bellard | registers[i] = tswapl(env->gpr[i]); |
249 | 9e62fd7f | bellard | } |
250 | 9e62fd7f | bellard | /* fill in fprs */
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251 | 9e62fd7f | bellard | for (i = 0; i < 32; i++) { |
252 | e95c8d51 | bellard | registers[(i * 2) + 32] = tswapl(*((uint32_t *)&env->fpr[i])); |
253 | e95c8d51 | bellard | registers[(i * 2) + 33] = tswapl(*((uint32_t *)&env->fpr[i] + 1)); |
254 | 9e62fd7f | bellard | } |
255 | 9e62fd7f | bellard | /* nip, msr, ccr, lnk, ctr, xer, mq */
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256 | e95c8d51 | bellard | registers[96] = tswapl(env->nip);
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257 | 3fc6c082 | bellard | registers[97] = tswapl(do_load_msr(env));
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258 | 9e62fd7f | bellard | tmp = 0;
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259 | 9e62fd7f | bellard | for (i = 0; i < 8; i++) |
260 | a541f297 | bellard | tmp |= env->crf[i] << (32 - ((i + 1) * 4)); |
261 | e95c8d51 | bellard | registers[98] = tswapl(tmp);
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262 | e95c8d51 | bellard | registers[99] = tswapl(env->lr);
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263 | e95c8d51 | bellard | registers[100] = tswapl(env->ctr);
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264 | 3fc6c082 | bellard | registers[101] = tswapl(do_load_xer(env));
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265 | e95c8d51 | bellard | registers[102] = 0; |
266 | a541f297 | bellard | |
267 | a541f297 | bellard | return 103 * 4; |
268 | 9e62fd7f | bellard | } |
269 | 9e62fd7f | bellard | |
270 | 9e62fd7f | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
271 | 9e62fd7f | bellard | { |
272 | 9e62fd7f | bellard | uint32_t *registers = (uint32_t *)mem_buf; |
273 | 9e62fd7f | bellard | int i;
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274 | 9e62fd7f | bellard | |
275 | 9e62fd7f | bellard | /* fill in gprs */
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276 | 9e62fd7f | bellard | for (i = 0; i < 32; i++) { |
277 | e95c8d51 | bellard | env->gpr[i] = tswapl(registers[i]); |
278 | 9e62fd7f | bellard | } |
279 | 9e62fd7f | bellard | /* fill in fprs */
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280 | 9e62fd7f | bellard | for (i = 0; i < 32; i++) { |
281 | e95c8d51 | bellard | *((uint32_t *)&env->fpr[i]) = tswapl(registers[(i * 2) + 32]); |
282 | e95c8d51 | bellard | *((uint32_t *)&env->fpr[i] + 1) = tswapl(registers[(i * 2) + 33]); |
283 | 9e62fd7f | bellard | } |
284 | 9e62fd7f | bellard | /* nip, msr, ccr, lnk, ctr, xer, mq */
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285 | e95c8d51 | bellard | env->nip = tswapl(registers[96]);
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286 | 3fc6c082 | bellard | do_store_msr(env, tswapl(registers[97]));
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287 | e95c8d51 | bellard | registers[98] = tswapl(registers[98]); |
288 | 9e62fd7f | bellard | for (i = 0; i < 8; i++) |
289 | a541f297 | bellard | env->crf[i] = (registers[98] >> (32 - ((i + 1) * 4))) & 0xF; |
290 | e95c8d51 | bellard | env->lr = tswapl(registers[99]);
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291 | e95c8d51 | bellard | env->ctr = tswapl(registers[100]);
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292 | 3fc6c082 | bellard | do_store_xer(env, tswapl(registers[101]));
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293 | e95c8d51 | bellard | } |
294 | e95c8d51 | bellard | #elif defined (TARGET_SPARC)
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295 | e95c8d51 | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
296 | e95c8d51 | bellard | { |
297 | 3475187d | bellard | target_ulong *registers = (target_ulong *)mem_buf; |
298 | e95c8d51 | bellard | int i;
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299 | e95c8d51 | bellard | |
300 | e95c8d51 | bellard | /* fill in g0..g7 */
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301 | 48b2c193 | bellard | for(i = 0; i < 8; i++) { |
302 | e95c8d51 | bellard | registers[i] = tswapl(env->gregs[i]); |
303 | e95c8d51 | bellard | } |
304 | e95c8d51 | bellard | /* fill in register window */
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305 | e95c8d51 | bellard | for(i = 0; i < 24; i++) { |
306 | e95c8d51 | bellard | registers[i + 8] = tswapl(env->regwptr[i]);
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307 | e95c8d51 | bellard | } |
308 | e95c8d51 | bellard | /* fill in fprs */
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309 | e95c8d51 | bellard | for (i = 0; i < 32; i++) { |
310 | e95c8d51 | bellard | registers[i + 32] = tswapl(*((uint32_t *)&env->fpr[i]));
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311 | e95c8d51 | bellard | } |
312 | 3475187d | bellard | #ifndef TARGET_SPARC64
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313 | e95c8d51 | bellard | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
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314 | e95c8d51 | bellard | registers[64] = tswapl(env->y);
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315 | 3475187d | bellard | { |
316 | 3475187d | bellard | target_ulong tmp; |
317 | 3475187d | bellard | |
318 | 3475187d | bellard | tmp = GET_PSR(env); |
319 | 3475187d | bellard | registers[65] = tswapl(tmp);
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320 | 3475187d | bellard | } |
321 | e95c8d51 | bellard | registers[66] = tswapl(env->wim);
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322 | e95c8d51 | bellard | registers[67] = tswapl(env->tbr);
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323 | e95c8d51 | bellard | registers[68] = tswapl(env->pc);
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324 | e95c8d51 | bellard | registers[69] = tswapl(env->npc);
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325 | e95c8d51 | bellard | registers[70] = tswapl(env->fsr);
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326 | e95c8d51 | bellard | registers[71] = 0; /* csr */ |
327 | e95c8d51 | bellard | registers[72] = 0; |
328 | 3475187d | bellard | return 73 * sizeof(target_ulong); |
329 | 3475187d | bellard | #else
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330 | 3475187d | bellard | for (i = 0; i < 32; i += 2) { |
331 | 3475187d | bellard | registers[i/2 + 64] = tswapl(*((uint64_t *)&env->fpr[i])); |
332 | 3475187d | bellard | } |
333 | 3475187d | bellard | registers[81] = tswapl(env->pc);
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334 | 3475187d | bellard | registers[82] = tswapl(env->npc);
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335 | 3475187d | bellard | registers[83] = tswapl(env->tstate[env->tl]);
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336 | 3475187d | bellard | registers[84] = tswapl(env->fsr);
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337 | 3475187d | bellard | registers[85] = tswapl(env->fprs);
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338 | 3475187d | bellard | registers[86] = tswapl(env->y);
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339 | 3475187d | bellard | return 87 * sizeof(target_ulong); |
340 | 3475187d | bellard | #endif
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341 | e95c8d51 | bellard | } |
342 | e95c8d51 | bellard | |
343 | e95c8d51 | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
344 | e95c8d51 | bellard | { |
345 | 3475187d | bellard | target_ulong *registers = (target_ulong *)mem_buf; |
346 | e95c8d51 | bellard | int i;
|
347 | e95c8d51 | bellard | |
348 | e95c8d51 | bellard | /* fill in g0..g7 */
|
349 | e95c8d51 | bellard | for(i = 0; i < 7; i++) { |
350 | e95c8d51 | bellard | env->gregs[i] = tswapl(registers[i]); |
351 | e95c8d51 | bellard | } |
352 | e95c8d51 | bellard | /* fill in register window */
|
353 | e95c8d51 | bellard | for(i = 0; i < 24; i++) { |
354 | 3475187d | bellard | env->regwptr[i] = tswapl(registers[i + 8]);
|
355 | e95c8d51 | bellard | } |
356 | e95c8d51 | bellard | /* fill in fprs */
|
357 | e95c8d51 | bellard | for (i = 0; i < 32; i++) { |
358 | e95c8d51 | bellard | *((uint32_t *)&env->fpr[i]) = tswapl(registers[i + 32]);
|
359 | e95c8d51 | bellard | } |
360 | 3475187d | bellard | #ifndef TARGET_SPARC64
|
361 | e95c8d51 | bellard | /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
|
362 | e95c8d51 | bellard | env->y = tswapl(registers[64]);
|
363 | e80cfcfc | bellard | PUT_PSR(env, tswapl(registers[65]));
|
364 | e95c8d51 | bellard | env->wim = tswapl(registers[66]);
|
365 | e95c8d51 | bellard | env->tbr = tswapl(registers[67]);
|
366 | e95c8d51 | bellard | env->pc = tswapl(registers[68]);
|
367 | e95c8d51 | bellard | env->npc = tswapl(registers[69]);
|
368 | e95c8d51 | bellard | env->fsr = tswapl(registers[70]);
|
369 | 3475187d | bellard | #else
|
370 | 3475187d | bellard | for (i = 0; i < 32; i += 2) { |
371 | 3475187d | bellard | uint64_t tmp; |
372 | 3475187d | bellard | tmp = tswapl(registers[i/2 + 64]) << 32; |
373 | 3475187d | bellard | tmp |= tswapl(registers[i/2 + 64 + 1]); |
374 | 3475187d | bellard | *((uint64_t *)&env->fpr[i]) = tmp; |
375 | 3475187d | bellard | } |
376 | 3475187d | bellard | env->pc = tswapl(registers[81]);
|
377 | 3475187d | bellard | env->npc = tswapl(registers[82]);
|
378 | 3475187d | bellard | env->tstate[env->tl] = tswapl(registers[83]);
|
379 | 3475187d | bellard | env->fsr = tswapl(registers[84]);
|
380 | 3475187d | bellard | env->fprs = tswapl(registers[85]);
|
381 | 3475187d | bellard | env->y = tswapl(registers[86]);
|
382 | 3475187d | bellard | #endif
|
383 | 9e62fd7f | bellard | } |
384 | 1fddef4b | bellard | #elif defined (TARGET_ARM)
|
385 | 1fddef4b | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
386 | 1fddef4b | bellard | { |
387 | 1fddef4b | bellard | int i;
|
388 | 1fddef4b | bellard | uint8_t *ptr; |
389 | 1fddef4b | bellard | |
390 | 1fddef4b | bellard | ptr = mem_buf; |
391 | 1fddef4b | bellard | /* 16 core integer registers (4 bytes each). */
|
392 | 1fddef4b | bellard | for (i = 0; i < 16; i++) |
393 | 1fddef4b | bellard | { |
394 | 1fddef4b | bellard | *(uint32_t *)ptr = tswapl(env->regs[i]); |
395 | 1fddef4b | bellard | ptr += 4;
|
396 | 1fddef4b | bellard | } |
397 | 1fddef4b | bellard | /* 8 FPA registers (12 bytes each), FPS (4 bytes).
|
398 | 1fddef4b | bellard | Not yet implemented. */
|
399 | 1fddef4b | bellard | memset (ptr, 0, 8 * 12 + 4); |
400 | 1fddef4b | bellard | ptr += 8 * 12 + 4; |
401 | 1fddef4b | bellard | /* CPSR (4 bytes). */
|
402 | b5ff1b31 | bellard | *(uint32_t *)ptr = tswapl (cpsr_read(env)); |
403 | 1fddef4b | bellard | ptr += 4;
|
404 | 1fddef4b | bellard | |
405 | 1fddef4b | bellard | return ptr - mem_buf;
|
406 | 1fddef4b | bellard | } |
407 | 6da41eaf | bellard | |
408 | 1fddef4b | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
409 | 1fddef4b | bellard | { |
410 | 1fddef4b | bellard | int i;
|
411 | 1fddef4b | bellard | uint8_t *ptr; |
412 | 1fddef4b | bellard | |
413 | 1fddef4b | bellard | ptr = mem_buf; |
414 | 1fddef4b | bellard | /* Core integer registers. */
|
415 | 1fddef4b | bellard | for (i = 0; i < 16; i++) |
416 | 1fddef4b | bellard | { |
417 | 1fddef4b | bellard | env->regs[i] = tswapl(*(uint32_t *)ptr); |
418 | 1fddef4b | bellard | ptr += 4;
|
419 | 1fddef4b | bellard | } |
420 | 1fddef4b | bellard | /* Ignore FPA regs and scr. */
|
421 | 1fddef4b | bellard | ptr += 8 * 12 + 4; |
422 | b5ff1b31 | bellard | cpsr_write (env, tswapl(*(uint32_t *)ptr), 0xffffffff);
|
423 | 1fddef4b | bellard | } |
424 | 6f970bd9 | bellard | #elif defined (TARGET_MIPS)
|
425 | 6f970bd9 | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
426 | 6f970bd9 | bellard | { |
427 | 6f970bd9 | bellard | int i;
|
428 | 6f970bd9 | bellard | uint8_t *ptr; |
429 | 6f970bd9 | bellard | |
430 | 6f970bd9 | bellard | ptr = mem_buf; |
431 | 6f970bd9 | bellard | for (i = 0; i < 32; i++) |
432 | 6f970bd9 | bellard | { |
433 | 6f970bd9 | bellard | *(uint32_t *)ptr = tswapl(env->gpr[i]); |
434 | 6f970bd9 | bellard | ptr += 4;
|
435 | 6f970bd9 | bellard | } |
436 | 6f970bd9 | bellard | |
437 | 6f970bd9 | bellard | *(uint32_t *)ptr = tswapl(env->CP0_Status); |
438 | 6f970bd9 | bellard | ptr += 4;
|
439 | 6f970bd9 | bellard | |
440 | 6f970bd9 | bellard | *(uint32_t *)ptr = tswapl(env->LO); |
441 | 6f970bd9 | bellard | ptr += 4;
|
442 | 6f970bd9 | bellard | |
443 | 6f970bd9 | bellard | *(uint32_t *)ptr = tswapl(env->HI); |
444 | 6f970bd9 | bellard | ptr += 4;
|
445 | 6f970bd9 | bellard | |
446 | 6f970bd9 | bellard | *(uint32_t *)ptr = tswapl(env->CP0_BadVAddr); |
447 | 6f970bd9 | bellard | ptr += 4;
|
448 | 6f970bd9 | bellard | |
449 | 6f970bd9 | bellard | *(uint32_t *)ptr = tswapl(env->CP0_Cause); |
450 | 6f970bd9 | bellard | ptr += 4;
|
451 | 6f970bd9 | bellard | |
452 | 6f970bd9 | bellard | *(uint32_t *)ptr = tswapl(env->PC); |
453 | 6f970bd9 | bellard | ptr += 4;
|
454 | 6f970bd9 | bellard | |
455 | 6f970bd9 | bellard | /* 32 FP registers, fsr, fir, fp. Not yet implemented. */
|
456 | 6f970bd9 | bellard | |
457 | 6f970bd9 | bellard | return ptr - mem_buf;
|
458 | 6f970bd9 | bellard | } |
459 | 6f970bd9 | bellard | |
460 | 6f970bd9 | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
461 | 6f970bd9 | bellard | { |
462 | 6f970bd9 | bellard | int i;
|
463 | 6f970bd9 | bellard | uint8_t *ptr; |
464 | 6f970bd9 | bellard | |
465 | 6f970bd9 | bellard | ptr = mem_buf; |
466 | 6f970bd9 | bellard | for (i = 0; i < 32; i++) |
467 | 6f970bd9 | bellard | { |
468 | 6f970bd9 | bellard | env->gpr[i] = tswapl(*(uint32_t *)ptr); |
469 | 6f970bd9 | bellard | ptr += 4;
|
470 | 6f970bd9 | bellard | } |
471 | 6f970bd9 | bellard | |
472 | 6f970bd9 | bellard | env->CP0_Status = tswapl(*(uint32_t *)ptr); |
473 | 6f970bd9 | bellard | ptr += 4;
|
474 | 6f970bd9 | bellard | |
475 | 6f970bd9 | bellard | env->LO = tswapl(*(uint32_t *)ptr); |
476 | 6f970bd9 | bellard | ptr += 4;
|
477 | 6f970bd9 | bellard | |
478 | 6f970bd9 | bellard | env->HI = tswapl(*(uint32_t *)ptr); |
479 | 6f970bd9 | bellard | ptr += 4;
|
480 | 6f970bd9 | bellard | |
481 | 6f970bd9 | bellard | env->CP0_BadVAddr = tswapl(*(uint32_t *)ptr); |
482 | 6f970bd9 | bellard | ptr += 4;
|
483 | 6f970bd9 | bellard | |
484 | 6f970bd9 | bellard | env->CP0_Cause = tswapl(*(uint32_t *)ptr); |
485 | 6f970bd9 | bellard | ptr += 4;
|
486 | 6f970bd9 | bellard | |
487 | 6f970bd9 | bellard | env->PC = tswapl(*(uint32_t *)ptr); |
488 | 6f970bd9 | bellard | ptr += 4;
|
489 | 6f970bd9 | bellard | } |
490 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
491 | fdf9b3e8 | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
492 | fdf9b3e8 | bellard | { |
493 | fdf9b3e8 | bellard | uint32_t *ptr = (uint32_t *)mem_buf; |
494 | fdf9b3e8 | bellard | int i;
|
495 | fdf9b3e8 | bellard | |
496 | fdf9b3e8 | bellard | #define SAVE(x) *ptr++=tswapl(x)
|
497 | fdf9b3e8 | bellard | for (i = 0; i < 16; i++) SAVE(env->gregs[i]); |
498 | fdf9b3e8 | bellard | SAVE (env->pc); |
499 | fdf9b3e8 | bellard | SAVE (env->pr); |
500 | fdf9b3e8 | bellard | SAVE (env->gbr); |
501 | fdf9b3e8 | bellard | SAVE (env->vbr); |
502 | fdf9b3e8 | bellard | SAVE (env->mach); |
503 | fdf9b3e8 | bellard | SAVE (env->macl); |
504 | fdf9b3e8 | bellard | SAVE (env->sr); |
505 | fdf9b3e8 | bellard | SAVE (0); /* TICKS */ |
506 | fdf9b3e8 | bellard | SAVE (0); /* STALLS */ |
507 | fdf9b3e8 | bellard | SAVE (0); /* CYCLES */ |
508 | fdf9b3e8 | bellard | SAVE (0); /* INSTS */ |
509 | fdf9b3e8 | bellard | SAVE (0); /* PLR */ |
510 | fdf9b3e8 | bellard | |
511 | fdf9b3e8 | bellard | return ((uint8_t *)ptr - mem_buf);
|
512 | fdf9b3e8 | bellard | } |
513 | fdf9b3e8 | bellard | |
514 | fdf9b3e8 | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
515 | fdf9b3e8 | bellard | { |
516 | fdf9b3e8 | bellard | uint32_t *ptr = (uint32_t *)mem_buf; |
517 | fdf9b3e8 | bellard | int i;
|
518 | fdf9b3e8 | bellard | |
519 | fdf9b3e8 | bellard | #define LOAD(x) (x)=*ptr++;
|
520 | fdf9b3e8 | bellard | for (i = 0; i < 16; i++) LOAD(env->gregs[i]); |
521 | fdf9b3e8 | bellard | LOAD (env->pc); |
522 | fdf9b3e8 | bellard | LOAD (env->pr); |
523 | fdf9b3e8 | bellard | LOAD (env->gbr); |
524 | fdf9b3e8 | bellard | LOAD (env->vbr); |
525 | fdf9b3e8 | bellard | LOAD (env->mach); |
526 | fdf9b3e8 | bellard | LOAD (env->macl); |
527 | fdf9b3e8 | bellard | LOAD (env->sr); |
528 | fdf9b3e8 | bellard | } |
529 | 1fddef4b | bellard | #else
|
530 | 6da41eaf | bellard | static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf) |
531 | 6da41eaf | bellard | { |
532 | 6da41eaf | bellard | return 0; |
533 | 6da41eaf | bellard | } |
534 | 6da41eaf | bellard | |
535 | 6da41eaf | bellard | static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) |
536 | 6da41eaf | bellard | { |
537 | 6da41eaf | bellard | } |
538 | 6da41eaf | bellard | |
539 | 6da41eaf | bellard | #endif
|
540 | b4608c04 | bellard | |
541 | 1fddef4b | bellard | static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf) |
542 | b4608c04 | bellard | { |
543 | b4608c04 | bellard | const char *p; |
544 | 858693c6 | bellard | int ch, reg_size, type;
|
545 | b4608c04 | bellard | char buf[4096]; |
546 | b4608c04 | bellard | uint8_t mem_buf[2000];
|
547 | b4608c04 | bellard | uint32_t *registers; |
548 | b4608c04 | bellard | uint32_t addr, len; |
549 | b4608c04 | bellard | |
550 | 858693c6 | bellard | #ifdef DEBUG_GDB
|
551 | 858693c6 | bellard | printf("command='%s'\n", line_buf);
|
552 | 858693c6 | bellard | #endif
|
553 | 858693c6 | bellard | p = line_buf; |
554 | 858693c6 | bellard | ch = *p++; |
555 | 858693c6 | bellard | switch(ch) {
|
556 | 858693c6 | bellard | case '?': |
557 | 1fddef4b | bellard | /* TODO: Make this return the correct value for user-mode. */
|
558 | 858693c6 | bellard | snprintf(buf, sizeof(buf), "S%02x", SIGTRAP); |
559 | 858693c6 | bellard | put_packet(s, buf); |
560 | 858693c6 | bellard | break;
|
561 | 858693c6 | bellard | case 'c': |
562 | 858693c6 | bellard | if (*p != '\0') { |
563 | 858693c6 | bellard | addr = strtoul(p, (char **)&p, 16); |
564 | 4c3a88a2 | bellard | #if defined(TARGET_I386)
|
565 | 858693c6 | bellard | env->eip = addr; |
566 | 5be1a8e0 | bellard | #elif defined (TARGET_PPC)
|
567 | 858693c6 | bellard | env->nip = addr; |
568 | 8d5f07fa | bellard | #elif defined (TARGET_SPARC)
|
569 | 8d5f07fa | bellard | env->pc = addr; |
570 | 8d5f07fa | bellard | env->npc = addr + 4;
|
571 | b5ff1b31 | bellard | #elif defined (TARGET_ARM)
|
572 | b5ff1b31 | bellard | env->regs[15] = addr;
|
573 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
574 | fdf9b3e8 | bellard | env->pc = addr; |
575 | 4c3a88a2 | bellard | #endif
|
576 | 858693c6 | bellard | } |
577 | 41625033 | bellard | #ifdef CONFIG_USER_ONLY
|
578 | 41625033 | bellard | s->running_state = 1;
|
579 | 41625033 | bellard | #else
|
580 | 41625033 | bellard | vm_start(); |
581 | 41625033 | bellard | #endif
|
582 | 41625033 | bellard | return RS_IDLE;
|
583 | 858693c6 | bellard | case 's': |
584 | 858693c6 | bellard | if (*p != '\0') { |
585 | 858693c6 | bellard | addr = strtoul(p, (char **)&p, 16); |
586 | c33a346e | bellard | #if defined(TARGET_I386)
|
587 | 858693c6 | bellard | env->eip = addr; |
588 | 5be1a8e0 | bellard | #elif defined (TARGET_PPC)
|
589 | 858693c6 | bellard | env->nip = addr; |
590 | 8d5f07fa | bellard | #elif defined (TARGET_SPARC)
|
591 | 8d5f07fa | bellard | env->pc = addr; |
592 | 8d5f07fa | bellard | env->npc = addr + 4;
|
593 | b5ff1b31 | bellard | #elif defined (TARGET_ARM)
|
594 | b5ff1b31 | bellard | env->regs[15] = addr;
|
595 | fdf9b3e8 | bellard | #elif defined (TARGET_SH4)
|
596 | fdf9b3e8 | bellard | env->pc = addr; |
597 | c33a346e | bellard | #endif
|
598 | 858693c6 | bellard | } |
599 | 858693c6 | bellard | cpu_single_step(env, 1);
|
600 | 41625033 | bellard | #ifdef CONFIG_USER_ONLY
|
601 | 41625033 | bellard | s->running_state = 1;
|
602 | 41625033 | bellard | #else
|
603 | 41625033 | bellard | vm_start(); |
604 | 41625033 | bellard | #endif
|
605 | 41625033 | bellard | return RS_IDLE;
|
606 | 858693c6 | bellard | case 'g': |
607 | 858693c6 | bellard | reg_size = cpu_gdb_read_registers(env, mem_buf); |
608 | 858693c6 | bellard | memtohex(buf, mem_buf, reg_size); |
609 | 858693c6 | bellard | put_packet(s, buf); |
610 | 858693c6 | bellard | break;
|
611 | 858693c6 | bellard | case 'G': |
612 | 858693c6 | bellard | registers = (void *)mem_buf;
|
613 | 858693c6 | bellard | len = strlen(p) / 2;
|
614 | 858693c6 | bellard | hextomem((uint8_t *)registers, p, len); |
615 | 858693c6 | bellard | cpu_gdb_write_registers(env, mem_buf, len); |
616 | 858693c6 | bellard | put_packet(s, "OK");
|
617 | 858693c6 | bellard | break;
|
618 | 858693c6 | bellard | case 'm': |
619 | 858693c6 | bellard | addr = strtoul(p, (char **)&p, 16); |
620 | 858693c6 | bellard | if (*p == ',') |
621 | 858693c6 | bellard | p++; |
622 | 858693c6 | bellard | len = strtoul(p, NULL, 16); |
623 | 6f970bd9 | bellard | if (cpu_memory_rw_debug(env, addr, mem_buf, len, 0) != 0) { |
624 | 6f970bd9 | bellard | put_packet (s, "E14");
|
625 | 6f970bd9 | bellard | } else {
|
626 | 6f970bd9 | bellard | memtohex(buf, mem_buf, len); |
627 | 6f970bd9 | bellard | put_packet(s, buf); |
628 | 6f970bd9 | bellard | } |
629 | 858693c6 | bellard | break;
|
630 | 858693c6 | bellard | case 'M': |
631 | 858693c6 | bellard | addr = strtoul(p, (char **)&p, 16); |
632 | 858693c6 | bellard | if (*p == ',') |
633 | 858693c6 | bellard | p++; |
634 | 858693c6 | bellard | len = strtoul(p, (char **)&p, 16); |
635 | b328f873 | bellard | if (*p == ':') |
636 | 858693c6 | bellard | p++; |
637 | 858693c6 | bellard | hextomem(mem_buf, p, len); |
638 | 858693c6 | bellard | if (cpu_memory_rw_debug(env, addr, mem_buf, len, 1) != 0) |
639 | 905f20b1 | bellard | put_packet(s, "E14");
|
640 | 858693c6 | bellard | else
|
641 | 858693c6 | bellard | put_packet(s, "OK");
|
642 | 858693c6 | bellard | break;
|
643 | 858693c6 | bellard | case 'Z': |
644 | 858693c6 | bellard | type = strtoul(p, (char **)&p, 16); |
645 | 858693c6 | bellard | if (*p == ',') |
646 | 858693c6 | bellard | p++; |
647 | 858693c6 | bellard | addr = strtoul(p, (char **)&p, 16); |
648 | 858693c6 | bellard | if (*p == ',') |
649 | 858693c6 | bellard | p++; |
650 | 858693c6 | bellard | len = strtoul(p, (char **)&p, 16); |
651 | 858693c6 | bellard | if (type == 0 || type == 1) { |
652 | 858693c6 | bellard | if (cpu_breakpoint_insert(env, addr) < 0) |
653 | 858693c6 | bellard | goto breakpoint_error;
|
654 | 858693c6 | bellard | put_packet(s, "OK");
|
655 | 858693c6 | bellard | } else {
|
656 | 858693c6 | bellard | breakpoint_error:
|
657 | 905f20b1 | bellard | put_packet(s, "E22");
|
658 | 858693c6 | bellard | } |
659 | 858693c6 | bellard | break;
|
660 | 858693c6 | bellard | case 'z': |
661 | 858693c6 | bellard | type = strtoul(p, (char **)&p, 16); |
662 | 858693c6 | bellard | if (*p == ',') |
663 | 858693c6 | bellard | p++; |
664 | 858693c6 | bellard | addr = strtoul(p, (char **)&p, 16); |
665 | 858693c6 | bellard | if (*p == ',') |
666 | 858693c6 | bellard | p++; |
667 | 858693c6 | bellard | len = strtoul(p, (char **)&p, 16); |
668 | 858693c6 | bellard | if (type == 0 || type == 1) { |
669 | 858693c6 | bellard | cpu_breakpoint_remove(env, addr); |
670 | 858693c6 | bellard | put_packet(s, "OK");
|
671 | 858693c6 | bellard | } else {
|
672 | 858693c6 | bellard | goto breakpoint_error;
|
673 | 858693c6 | bellard | } |
674 | 858693c6 | bellard | break;
|
675 | 858693c6 | bellard | default:
|
676 | 858693c6 | bellard | // unknown_command:
|
677 | 858693c6 | bellard | /* put empty packet */
|
678 | 858693c6 | bellard | buf[0] = '\0'; |
679 | 858693c6 | bellard | put_packet(s, buf); |
680 | 858693c6 | bellard | break;
|
681 | 858693c6 | bellard | } |
682 | 858693c6 | bellard | return RS_IDLE;
|
683 | 858693c6 | bellard | } |
684 | 858693c6 | bellard | |
685 | 612458f5 | bellard | extern void tb_flush(CPUState *env); |
686 | 612458f5 | bellard | |
687 | 1fddef4b | bellard | #ifndef CONFIG_USER_ONLY
|
688 | 858693c6 | bellard | static void gdb_vm_stopped(void *opaque, int reason) |
689 | 858693c6 | bellard | { |
690 | 858693c6 | bellard | GDBState *s = opaque; |
691 | 858693c6 | bellard | char buf[256]; |
692 | 858693c6 | bellard | int ret;
|
693 | 858693c6 | bellard | |
694 | 858693c6 | bellard | /* disable single step if it was enable */
|
695 | 6a00d601 | bellard | cpu_single_step(s->env, 0);
|
696 | 858693c6 | bellard | |
697 | e80cfcfc | bellard | if (reason == EXCP_DEBUG) {
|
698 | 6a00d601 | bellard | tb_flush(s->env); |
699 | 858693c6 | bellard | ret = SIGTRAP; |
700 | bbeb7b5c | bellard | } else if (reason == EXCP_INTERRUPT) { |
701 | bbeb7b5c | bellard | ret = SIGINT; |
702 | bbeb7b5c | bellard | } else {
|
703 | 858693c6 | bellard | ret = 0;
|
704 | bbeb7b5c | bellard | } |
705 | 858693c6 | bellard | snprintf(buf, sizeof(buf), "S%02x", ret); |
706 | 858693c6 | bellard | put_packet(s, buf); |
707 | 858693c6 | bellard | } |
708 | 1fddef4b | bellard | #endif
|
709 | 858693c6 | bellard | |
710 | 6a00d601 | bellard | static void gdb_read_byte(GDBState *s, int ch) |
711 | 858693c6 | bellard | { |
712 | 6a00d601 | bellard | CPUState *env = s->env; |
713 | 858693c6 | bellard | int i, csum;
|
714 | 858693c6 | bellard | char reply[1]; |
715 | 858693c6 | bellard | |
716 | 1fddef4b | bellard | #ifndef CONFIG_USER_ONLY
|
717 | 858693c6 | bellard | if (vm_running) {
|
718 | 858693c6 | bellard | /* when the CPU is running, we cannot do anything except stop
|
719 | 858693c6 | bellard | it when receiving a char */
|
720 | 858693c6 | bellard | vm_stop(EXCP_INTERRUPT); |
721 | 41625033 | bellard | } else
|
722 | 1fddef4b | bellard | #endif
|
723 | 41625033 | bellard | { |
724 | 858693c6 | bellard | switch(s->state) {
|
725 | 858693c6 | bellard | case RS_IDLE:
|
726 | 858693c6 | bellard | if (ch == '$') { |
727 | 858693c6 | bellard | s->line_buf_index = 0;
|
728 | 858693c6 | bellard | s->state = RS_GETLINE; |
729 | c33a346e | bellard | } |
730 | b4608c04 | bellard | break;
|
731 | 858693c6 | bellard | case RS_GETLINE:
|
732 | 858693c6 | bellard | if (ch == '#') { |
733 | 858693c6 | bellard | s->state = RS_CHKSUM1; |
734 | 858693c6 | bellard | } else if (s->line_buf_index >= sizeof(s->line_buf) - 1) { |
735 | 858693c6 | bellard | s->state = RS_IDLE; |
736 | 4c3a88a2 | bellard | } else {
|
737 | 858693c6 | bellard | s->line_buf[s->line_buf_index++] = ch; |
738 | 4c3a88a2 | bellard | } |
739 | 4c3a88a2 | bellard | break;
|
740 | 858693c6 | bellard | case RS_CHKSUM1:
|
741 | 858693c6 | bellard | s->line_buf[s->line_buf_index] = '\0';
|
742 | 858693c6 | bellard | s->line_csum = fromhex(ch) << 4;
|
743 | 858693c6 | bellard | s->state = RS_CHKSUM2; |
744 | 858693c6 | bellard | break;
|
745 | 858693c6 | bellard | case RS_CHKSUM2:
|
746 | 858693c6 | bellard | s->line_csum |= fromhex(ch); |
747 | 858693c6 | bellard | csum = 0;
|
748 | 858693c6 | bellard | for(i = 0; i < s->line_buf_index; i++) { |
749 | 858693c6 | bellard | csum += s->line_buf[i]; |
750 | 858693c6 | bellard | } |
751 | 858693c6 | bellard | if (s->line_csum != (csum & 0xff)) { |
752 | 858693c6 | bellard | reply[0] = '-'; |
753 | 858693c6 | bellard | put_buffer(s, reply, 1);
|
754 | 858693c6 | bellard | s->state = RS_IDLE; |
755 | 4c3a88a2 | bellard | } else {
|
756 | 858693c6 | bellard | reply[0] = '+'; |
757 | 858693c6 | bellard | put_buffer(s, reply, 1);
|
758 | 1fddef4b | bellard | s->state = gdb_handle_packet(s, env, s->line_buf); |
759 | 4c3a88a2 | bellard | } |
760 | 4c3a88a2 | bellard | break;
|
761 | 858693c6 | bellard | } |
762 | 858693c6 | bellard | } |
763 | 858693c6 | bellard | } |
764 | 858693c6 | bellard | |
765 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
|
766 | 1fddef4b | bellard | int
|
767 | 1fddef4b | bellard | gdb_handlesig (CPUState *env, int sig)
|
768 | 1fddef4b | bellard | { |
769 | 1fddef4b | bellard | GDBState *s; |
770 | 1fddef4b | bellard | char buf[256]; |
771 | 1fddef4b | bellard | int n;
|
772 | 1fddef4b | bellard | |
773 | 1fddef4b | bellard | if (gdbserver_fd < 0) |
774 | 1fddef4b | bellard | return sig;
|
775 | 1fddef4b | bellard | |
776 | 1fddef4b | bellard | s = &gdbserver_state; |
777 | 1fddef4b | bellard | |
778 | 1fddef4b | bellard | /* disable single step if it was enabled */
|
779 | 1fddef4b | bellard | cpu_single_step(env, 0);
|
780 | 1fddef4b | bellard | tb_flush(env); |
781 | 1fddef4b | bellard | |
782 | 1fddef4b | bellard | if (sig != 0) |
783 | 1fddef4b | bellard | { |
784 | 1fddef4b | bellard | snprintf(buf, sizeof(buf), "S%02x", sig); |
785 | 1fddef4b | bellard | put_packet(s, buf); |
786 | 1fddef4b | bellard | } |
787 | 1fddef4b | bellard | |
788 | 1fddef4b | bellard | sig = 0;
|
789 | 1fddef4b | bellard | s->state = RS_IDLE; |
790 | 41625033 | bellard | s->running_state = 0;
|
791 | 41625033 | bellard | while (s->running_state == 0) { |
792 | 1fddef4b | bellard | n = read (s->fd, buf, 256);
|
793 | 1fddef4b | bellard | if (n > 0) |
794 | 1fddef4b | bellard | { |
795 | 1fddef4b | bellard | int i;
|
796 | 1fddef4b | bellard | |
797 | 1fddef4b | bellard | for (i = 0; i < n; i++) |
798 | 6a00d601 | bellard | gdb_read_byte (s, buf[i]); |
799 | 1fddef4b | bellard | } |
800 | 1fddef4b | bellard | else if (n == 0 || errno != EAGAIN) |
801 | 1fddef4b | bellard | { |
802 | 1fddef4b | bellard | /* XXX: Connection closed. Should probably wait for annother
|
803 | 1fddef4b | bellard | connection before continuing. */
|
804 | 1fddef4b | bellard | return sig;
|
805 | 1fddef4b | bellard | } |
806 | 41625033 | bellard | } |
807 | 1fddef4b | bellard | return sig;
|
808 | 1fddef4b | bellard | } |
809 | e9009676 | bellard | |
810 | e9009676 | bellard | /* Tell the remote gdb that the process has exited. */
|
811 | e9009676 | bellard | void gdb_exit(CPUState *env, int code) |
812 | e9009676 | bellard | { |
813 | e9009676 | bellard | GDBState *s; |
814 | e9009676 | bellard | char buf[4]; |
815 | e9009676 | bellard | |
816 | e9009676 | bellard | if (gdbserver_fd < 0) |
817 | e9009676 | bellard | return;
|
818 | e9009676 | bellard | |
819 | e9009676 | bellard | s = &gdbserver_state; |
820 | e9009676 | bellard | |
821 | e9009676 | bellard | snprintf(buf, sizeof(buf), "W%02x", code); |
822 | e9009676 | bellard | put_packet(s, buf); |
823 | e9009676 | bellard | } |
824 | e9009676 | bellard | |
825 | 1fddef4b | bellard | #else
|
826 | 7c9d8e07 | bellard | static void gdb_read(void *opaque) |
827 | 858693c6 | bellard | { |
828 | 858693c6 | bellard | GDBState *s = opaque; |
829 | 7c9d8e07 | bellard | int i, size;
|
830 | 7c9d8e07 | bellard | uint8_t buf[4096];
|
831 | 7c9d8e07 | bellard | |
832 | 7c9d8e07 | bellard | size = read(s->fd, buf, sizeof(buf));
|
833 | 7c9d8e07 | bellard | if (size < 0) |
834 | 7c9d8e07 | bellard | return;
|
835 | 858693c6 | bellard | if (size == 0) { |
836 | 858693c6 | bellard | /* end of connection */
|
837 | 858693c6 | bellard | qemu_del_vm_stop_handler(gdb_vm_stopped, s); |
838 | 7c9d8e07 | bellard | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
839 | 858693c6 | bellard | qemu_free(s); |
840 | 858693c6 | bellard | vm_start(); |
841 | 858693c6 | bellard | } else {
|
842 | 858693c6 | bellard | for(i = 0; i < size; i++) |
843 | 6a00d601 | bellard | gdb_read_byte(s, buf[i]); |
844 | 858693c6 | bellard | } |
845 | 858693c6 | bellard | } |
846 | 858693c6 | bellard | |
847 | 1fddef4b | bellard | #endif
|
848 | 1fddef4b | bellard | |
849 | 7c9d8e07 | bellard | static void gdb_accept(void *opaque) |
850 | 858693c6 | bellard | { |
851 | 858693c6 | bellard | GDBState *s; |
852 | 858693c6 | bellard | struct sockaddr_in sockaddr;
|
853 | 858693c6 | bellard | socklen_t len; |
854 | 858693c6 | bellard | int val, fd;
|
855 | 858693c6 | bellard | |
856 | 858693c6 | bellard | for(;;) {
|
857 | 858693c6 | bellard | len = sizeof(sockaddr);
|
858 | 858693c6 | bellard | fd = accept(gdbserver_fd, (struct sockaddr *)&sockaddr, &len);
|
859 | 858693c6 | bellard | if (fd < 0 && errno != EINTR) { |
860 | 858693c6 | bellard | perror("accept");
|
861 | 858693c6 | bellard | return;
|
862 | 858693c6 | bellard | } else if (fd >= 0) { |
863 | b4608c04 | bellard | break;
|
864 | b4608c04 | bellard | } |
865 | b4608c04 | bellard | } |
866 | 858693c6 | bellard | |
867 | 858693c6 | bellard | /* set short latency */
|
868 | 858693c6 | bellard | val = 1;
|
869 | 7d3505c5 | bellard | setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val));
|
870 | 858693c6 | bellard | |
871 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
|
872 | 1fddef4b | bellard | s = &gdbserver_state; |
873 | 1fddef4b | bellard | memset (s, 0, sizeof (GDBState)); |
874 | 1fddef4b | bellard | #else
|
875 | 858693c6 | bellard | s = qemu_mallocz(sizeof(GDBState));
|
876 | 858693c6 | bellard | if (!s) {
|
877 | 858693c6 | bellard | close(fd); |
878 | 858693c6 | bellard | return;
|
879 | 858693c6 | bellard | } |
880 | 1fddef4b | bellard | #endif
|
881 | 6a00d601 | bellard | s->env = first_cpu; /* XXX: allow to change CPU */
|
882 | 858693c6 | bellard | s->fd = fd; |
883 | 858693c6 | bellard | |
884 | 858693c6 | bellard | fcntl(fd, F_SETFL, O_NONBLOCK); |
885 | 858693c6 | bellard | |
886 | 1fddef4b | bellard | #ifndef CONFIG_USER_ONLY
|
887 | 858693c6 | bellard | /* stop the VM */
|
888 | 858693c6 | bellard | vm_stop(EXCP_INTERRUPT); |
889 | 858693c6 | bellard | |
890 | 858693c6 | bellard | /* start handling I/O */
|
891 | 7c9d8e07 | bellard | qemu_set_fd_handler(s->fd, gdb_read, NULL, s);
|
892 | 858693c6 | bellard | /* when the VM is stopped, the following callback is called */
|
893 | 858693c6 | bellard | qemu_add_vm_stop_handler(gdb_vm_stopped, s); |
894 | 1fddef4b | bellard | #endif
|
895 | 858693c6 | bellard | } |
896 | 858693c6 | bellard | |
897 | 858693c6 | bellard | static int gdbserver_open(int port) |
898 | 858693c6 | bellard | { |
899 | 858693c6 | bellard | struct sockaddr_in sockaddr;
|
900 | 858693c6 | bellard | int fd, val, ret;
|
901 | 858693c6 | bellard | |
902 | 858693c6 | bellard | fd = socket(PF_INET, SOCK_STREAM, 0);
|
903 | 858693c6 | bellard | if (fd < 0) { |
904 | 858693c6 | bellard | perror("socket");
|
905 | 858693c6 | bellard | return -1; |
906 | 858693c6 | bellard | } |
907 | 858693c6 | bellard | |
908 | 858693c6 | bellard | /* allow fast reuse */
|
909 | 858693c6 | bellard | val = 1;
|
910 | 858693c6 | bellard | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
|
911 | 858693c6 | bellard | |
912 | 858693c6 | bellard | sockaddr.sin_family = AF_INET; |
913 | 858693c6 | bellard | sockaddr.sin_port = htons(port); |
914 | 858693c6 | bellard | sockaddr.sin_addr.s_addr = 0;
|
915 | 858693c6 | bellard | ret = bind(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)); |
916 | 858693c6 | bellard | if (ret < 0) { |
917 | 858693c6 | bellard | perror("bind");
|
918 | 858693c6 | bellard | return -1; |
919 | 858693c6 | bellard | } |
920 | 858693c6 | bellard | ret = listen(fd, 0);
|
921 | 858693c6 | bellard | if (ret < 0) { |
922 | 858693c6 | bellard | perror("listen");
|
923 | 858693c6 | bellard | return -1; |
924 | 858693c6 | bellard | } |
925 | 1fddef4b | bellard | #ifndef CONFIG_USER_ONLY
|
926 | 858693c6 | bellard | fcntl(fd, F_SETFL, O_NONBLOCK); |
927 | 1fddef4b | bellard | #endif
|
928 | 858693c6 | bellard | return fd;
|
929 | 858693c6 | bellard | } |
930 | 858693c6 | bellard | |
931 | 858693c6 | bellard | int gdbserver_start(int port) |
932 | 858693c6 | bellard | { |
933 | 858693c6 | bellard | gdbserver_fd = gdbserver_open(port); |
934 | 858693c6 | bellard | if (gdbserver_fd < 0) |
935 | 858693c6 | bellard | return -1; |
936 | 858693c6 | bellard | /* accept connections */
|
937 | 1fddef4b | bellard | #ifdef CONFIG_USER_ONLY
|
938 | 7c9d8e07 | bellard | gdb_accept (NULL);
|
939 | 1fddef4b | bellard | #else
|
940 | 7c9d8e07 | bellard | qemu_set_fd_handler(gdbserver_fd, gdb_accept, NULL, NULL); |
941 | 1fddef4b | bellard | #endif
|
942 | b4608c04 | bellard | return 0; |
943 | b4608c04 | bellard | } |