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Rev | Author | Line No. | Line |
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2832 | svoboda | 1 | /** @addtogroup sctrace |
2 | * @{ |
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3 | */ |
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4 | /** @file |
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5 | */ |
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6 | |||
7 | #include <stdio.h> |
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8 | #include <unistd.h> |
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9 | #include <syscall.h> |
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10 | #include <ipc/ipc.h> |
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2835 | svoboda | 11 | #include <fibril.h> |
12 | #include <errno.h> |
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2838 | svoboda | 13 | #include <udebug.h> |
2862 | svoboda | 14 | #include <async.h> |
2832 | svoboda | 15 | |
16 | #include "syscalls.h" |
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17 | #include "errors.h" |
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18 | #include "debug_api.h" |
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19 | |||
2868 | svoboda | 20 | #define THBUF_SIZE 64 |
21 | unsigned thread_hash_buf[THBUF_SIZE]; |
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2850 | svoboda | 22 | unsigned n_threads; |
2832 | svoboda | 23 | |
2868 | svoboda | 24 | int next_thread_id; |
25 | |||
2832 | svoboda | 26 | int phoneid; |
2835 | svoboda | 27 | int abort_trace; |
2832 | svoboda | 28 | |
2868 | svoboda | 29 | void thread_trace_start(unsigned thread_hash); |
30 | |||
31 | |||
2832 | svoboda | 32 | int task_connect(int taskid) |
33 | { |
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34 | int rc; |
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35 | |||
36 | printf("ipc_connect_task(%d)...\n", taskid); |
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37 | rc = ipc_connect_kbox(taskid); |
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38 | printf("-> %d\n", rc); |
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39 | phoneid = rc; |
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40 | if (rc < 0) return rc; |
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41 | |||
42 | printf("debug_begin()\n"); |
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43 | rc = debug_begin(phoneid); |
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44 | printf("-> %d\n", rc); |
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45 | if (rc < 0) return rc; |
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46 | |||
47 | return 0; |
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48 | } |
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49 | |||
50 | int get_thread_list(void) |
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51 | { |
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52 | int rc; |
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53 | int tb_copied; |
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54 | int tb_needed; |
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55 | int i; |
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56 | |||
57 | |||
58 | printf("send IPC_M_DEBUG_THREAD_READ message\n"); |
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2868 | svoboda | 59 | rc = debug_thread_read(phoneid, (unsigned)thread_hash_buf, |
60 | THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed); |
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2832 | svoboda | 61 | printf("-> %d\n", rc); |
62 | if (rc < 0) return rc; |
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63 | |||
2850 | svoboda | 64 | n_threads = tb_copied / sizeof(unsigned); |
65 | |||
2832 | svoboda | 66 | printf("thread IDs:"); |
2850 | svoboda | 67 | for (i=0; i<n_threads; i++) { |
2868 | svoboda | 68 | printf(" %u", thread_hash_buf[i]); |
2832 | svoboda | 69 | } |
70 | printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned)); |
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71 | |||
72 | return 0; |
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73 | } |
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74 | |||
75 | void print_sc_retval(int retval, rv_type_t rv_type) |
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76 | { |
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77 | printf (" -> "); |
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78 | if (rv_type == RV_INTEGER) { |
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79 | printf("%d", retval); |
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80 | } else if (rv_type == RV_HASH) { |
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81 | printf("0x%08x", retval); |
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82 | } else if (rv_type == RV_ERRNO) { |
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83 | if (retval >= -15 && retval <= 0) { |
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84 | printf("%d %s (%s)", retval, |
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85 | err_desc[retval].name, |
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86 | err_desc[retval].desc); |
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87 | } else { |
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88 | printf("%d", retval); |
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89 | } |
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90 | } else if (rv_type == RV_INT_ERRNO) { |
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91 | if (retval >= -15 && retval < 0) { |
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92 | printf("%d %s (%s)", retval, |
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93 | err_desc[retval].name, |
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94 | err_desc[retval].desc); |
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95 | } else { |
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96 | printf("%d", retval); |
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97 | } |
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98 | } |
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99 | putchar('\n'); |
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100 | } |
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101 | |||
102 | void print_sc_args(unsigned *sc_args, int n) |
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103 | { |
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104 | int i; |
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105 | |||
106 | putchar('('); |
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107 | if (n > 0) printf("%d", sc_args[0]); |
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108 | for (i=1; i<n; i++) { |
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109 | printf(", %d", sc_args[i]); |
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110 | } |
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111 | putchar(')'); |
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112 | } |
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113 | |||
114 | void sc_ipc_call_async_slow(unsigned *sc_args) |
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115 | { |
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116 | unsigned ipc_args[6]; |
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117 | int rc; |
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118 | |||
119 | memset(ipc_args, 0, sizeof(ipc_args)); |
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120 | rc = debug_mem_read(phoneid, ipc_args, sc_args[1], sizeof(ipc_args)); |
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121 | |||
122 | if (rc >= 0) { |
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123 | printf("args: (%u, %u, %u, %u, %u, %u)\n", |
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124 | ipc_args[0], ipc_args[1], ipc_args[2], |
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125 | ipc_args[3], ipc_args[4], ipc_args[5]); |
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126 | } |
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127 | } |
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128 | |||
2868 | svoboda | 129 | void event_syscall(unsigned thread_id, unsigned thread_hash, unsigned sc_id, int sc_rc) |
2867 | svoboda | 130 | { |
131 | unsigned sc_args[6]; |
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132 | int rv_type; |
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133 | int rc; |
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134 | |||
135 | /* Read syscall arguments */ |
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2868 | svoboda | 136 | rc = debug_args_read(phoneid, thread_hash, sc_args); |
2867 | svoboda | 137 | |
138 | async_serialize_start(); |
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139 | |||
2868 | svoboda | 140 | printf("[%d] ", thread_id); |
2867 | svoboda | 141 | |
142 | if (rc < 0) { |
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143 | printf("error\n"); |
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144 | async_serialize_end(); |
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145 | return; |
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146 | } |
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147 | |||
148 | /* Print syscall name, id and arguments */ |
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149 | printf("%s", syscall_desc[sc_id].name); |
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150 | print_sc_args(sc_args, syscall_desc[sc_id].n_args); |
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151 | rv_type = syscall_desc[sc_id].rv_type; |
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152 | print_sc_retval(sc_rc, rv_type); |
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153 | |||
154 | switch (sc_id) { |
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155 | case SYS_IPC_CALL_ASYNC_SLOW: |
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156 | sc_ipc_call_async_slow(sc_args); |
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157 | break; |
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158 | default: |
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159 | break; |
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160 | } |
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161 | |||
162 | async_serialize_end(); |
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163 | } |
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164 | |||
165 | void event_new_thread(unsigned hash) |
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166 | { |
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167 | async_serialize_start(); |
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168 | printf("new thread, hash 0x%x\n", hash); |
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169 | async_serialize_end(); |
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2868 | svoboda | 170 | |
171 | thread_trace_start(hash); |
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2867 | svoboda | 172 | } |
173 | |||
2868 | svoboda | 174 | void trace_loop(void *thread_hash_arg) |
2835 | svoboda | 175 | { |
2832 | svoboda | 176 | int rc; |
177 | unsigned ev_type; |
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2868 | svoboda | 178 | unsigned thread_hash; |
179 | unsigned thread_id; |
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2867 | svoboda | 180 | unsigned val0, val1; |
2832 | svoboda | 181 | |
2868 | svoboda | 182 | thread_hash = (unsigned)thread_hash_arg; |
183 | thread_id = next_thread_id++; |
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2835 | svoboda | 184 | |
2868 | svoboda | 185 | printf("trace_loop(%d)\n", thread_id); |
186 | |||
2835 | svoboda | 187 | while (!abort_trace) { |
188 | |||
2867 | svoboda | 189 | /* Run thread until an event occurs */ |
2868 | svoboda | 190 | rc = debug_go(phoneid, thread_hash, |
2867 | svoboda | 191 | &ev_type, &val0, &val1); |
2832 | svoboda | 192 | |
2838 | svoboda | 193 | printf("rc = %d, ev_type=%d\n", rc, ev_type); |
194 | if (ev_type == UDEBUG_EVENT_FINISHED) { |
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2868 | svoboda | 195 | printf("thread %u debugging finished\n", thread_id); |
2838 | svoboda | 196 | break; |
197 | } |
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198 | |||
2832 | svoboda | 199 | if (rc >= 0) { |
2867 | svoboda | 200 | switch (ev_type) { |
201 | case UDEBUG_EVENT_SYSCALL: |
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2868 | svoboda | 202 | event_syscall(thread_id, thread_hash, val0, (int)val1); |
2867 | svoboda | 203 | break; |
204 | case UDEBUG_EVENT_NEW_THREAD: |
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205 | event_new_thread(val0); |
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206 | break; |
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207 | default: |
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208 | printf("unknown event type %d\n", ev_type); |
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209 | break; |
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210 | } |
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2832 | svoboda | 211 | } |
212 | |||
213 | } |
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2835 | svoboda | 214 | |
2868 | svoboda | 215 | printf("trace_loop(%d) exiting\n", thread_id); |
2832 | svoboda | 216 | } |
217 | |||
2868 | svoboda | 218 | void thread_trace_start(unsigned thread_hash) |
219 | { |
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220 | fid_t fid; |
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2832 | svoboda | 221 | |
2868 | svoboda | 222 | fid = fibril_create(trace_loop, (void *)thread_hash); |
223 | if (fid == 0) { |
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224 | printf("Warning: Failed creating fibril\n"); |
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225 | } |
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226 | fibril_add_ready(fid); |
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227 | } |
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228 | |||
2832 | svoboda | 229 | void trace_active_task(void) |
230 | { |
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231 | int taskid; |
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232 | int i; |
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233 | int rc; |
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234 | |||
235 | printf("Syscall Tracer\n"); |
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236 | printf("Press 'c' to connect\n"); |
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237 | while ((i = getchar()) != 'c') |
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238 | putchar(i); |
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239 | |||
2850 | svoboda | 240 | taskid = 14; |
2832 | svoboda | 241 | rc = task_connect(taskid); |
242 | if (rc < 0) { |
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243 | printf("Failed to connect to task %d\n", taskid); |
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244 | return; |
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245 | } |
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246 | |||
247 | printf("Connected to task %d\n", taskid); |
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248 | |||
249 | rc = get_thread_list(); |
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250 | if (rc < 0) { |
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251 | printf("Failed to get thread list (error %d)\n", rc); |
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252 | return; |
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253 | } |
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254 | |||
2850 | svoboda | 255 | abort_trace = 0; |
2832 | svoboda | 256 | |
2850 | svoboda | 257 | for (i = 0; i < n_threads; i++) { |
2868 | svoboda | 258 | thread_trace_start(thread_hash_buf[i]); |
2850 | svoboda | 259 | } |
260 | |||
261 | getchar(); |
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262 | |||
263 | printf("terminate debugging session...\n"); |
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264 | abort_trace = 1; |
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2835 | svoboda | 265 | debug_end(phoneid); |
2850 | svoboda | 266 | ipc_hangup(phoneid); |
267 | |||
2832 | svoboda | 268 | printf("done\n"); |
269 | return; |
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270 | } |
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271 | |||
272 | int main(void) |
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273 | { |
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2868 | svoboda | 274 | next_thread_id = 1; |
275 | |||
2835 | svoboda | 276 | while (1) { |
277 | trace_active_task(); |
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278 | } |
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2832 | svoboda | 279 | } |
280 | |||
281 | /** @} |
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282 | */ |