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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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2874 | svoboda | 17 | #include "ipcp.h" |
2832 | svoboda | 18 | #include "errors.h" |
19 | #include "debug_api.h" |
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20 | |||
2868 | svoboda | 21 | #define THBUF_SIZE 64 |
22 | unsigned thread_hash_buf[THBUF_SIZE]; |
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2850 | svoboda | 23 | unsigned n_threads; |
2832 | svoboda | 24 | |
2868 | svoboda | 25 | int next_thread_id; |
26 | |||
2832 | svoboda | 27 | int phoneid; |
2835 | svoboda | 28 | int abort_trace; |
2832 | svoboda | 29 | |
2868 | svoboda | 30 | void thread_trace_start(unsigned thread_hash); |
31 | |||
32 | |||
2832 | svoboda | 33 | int task_connect(int taskid) |
34 | { |
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35 | int rc; |
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36 | |||
37 | printf("ipc_connect_task(%d)...\n", taskid); |
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38 | rc = ipc_connect_kbox(taskid); |
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39 | printf("-> %d\n", rc); |
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40 | phoneid = rc; |
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41 | if (rc < 0) return rc; |
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42 | |||
43 | printf("debug_begin()\n"); |
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44 | rc = debug_begin(phoneid); |
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45 | printf("-> %d\n", rc); |
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46 | if (rc < 0) return rc; |
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47 | |||
48 | return 0; |
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49 | } |
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50 | |||
51 | int get_thread_list(void) |
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52 | { |
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53 | int rc; |
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54 | int tb_copied; |
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55 | int tb_needed; |
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56 | int i; |
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57 | |||
58 | |||
59 | printf("send IPC_M_DEBUG_THREAD_READ message\n"); |
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2868 | svoboda | 60 | rc = debug_thread_read(phoneid, (unsigned)thread_hash_buf, |
61 | THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed); |
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2832 | svoboda | 62 | printf("-> %d\n", rc); |
63 | if (rc < 0) return rc; |
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64 | |||
2850 | svoboda | 65 | n_threads = tb_copied / sizeof(unsigned); |
66 | |||
2832 | svoboda | 67 | printf("thread IDs:"); |
2850 | svoboda | 68 | for (i=0; i<n_threads; i++) { |
2868 | svoboda | 69 | printf(" %u", thread_hash_buf[i]); |
2832 | svoboda | 70 | } |
71 | printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned)); |
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72 | |||
73 | return 0; |
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74 | } |
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75 | |||
76 | void print_sc_retval(int retval, rv_type_t rv_type) |
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77 | { |
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78 | printf (" -> "); |
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79 | if (rv_type == RV_INTEGER) { |
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80 | printf("%d", retval); |
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81 | } else if (rv_type == RV_HASH) { |
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82 | printf("0x%08x", retval); |
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83 | } else if (rv_type == RV_ERRNO) { |
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84 | if (retval >= -15 && retval <= 0) { |
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85 | printf("%d %s (%s)", retval, |
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86 | err_desc[retval].name, |
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87 | err_desc[retval].desc); |
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88 | } else { |
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89 | printf("%d", retval); |
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90 | } |
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91 | } else if (rv_type == RV_INT_ERRNO) { |
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92 | if (retval >= -15 && retval < 0) { |
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93 | printf("%d %s (%s)", retval, |
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94 | err_desc[retval].name, |
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95 | err_desc[retval].desc); |
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96 | } else { |
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97 | printf("%d", retval); |
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98 | } |
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99 | } |
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100 | putchar('\n'); |
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101 | } |
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102 | |||
103 | void print_sc_args(unsigned *sc_args, int n) |
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104 | { |
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105 | int i; |
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106 | |||
107 | putchar('('); |
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108 | if (n > 0) printf("%d", sc_args[0]); |
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109 | for (i=1; i<n; i++) { |
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110 | printf(", %d", sc_args[i]); |
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111 | } |
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112 | putchar(')'); |
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113 | } |
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114 | |||
2872 | svoboda | 115 | void sc_ipc_call_async_fast(unsigned *sc_args, int sc_rc) |
2871 | svoboda | 116 | { |
117 | ipc_call_t call; |
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118 | int phoneid; |
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2872 | svoboda | 119 | |
120 | if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY) |
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121 | return; |
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2871 | svoboda | 122 | |
123 | phoneid = sc_args[0]; |
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124 | |||
125 | IPC_SET_METHOD(call, sc_args[1]); |
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126 | IPC_SET_ARG1(call, sc_args[2]); |
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127 | IPC_SET_ARG2(call, sc_args[3]); |
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128 | IPC_SET_ARG3(call, sc_args[4]); |
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129 | IPC_SET_ARG4(call, sc_args[5]); |
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130 | IPC_SET_ARG5(call, 0); |
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131 | |||
2874 | svoboda | 132 | ipcp_call_out(phoneid, &call, sc_rc); |
2871 | svoboda | 133 | } |
134 | |||
2872 | svoboda | 135 | void sc_ipc_call_async_slow(unsigned *sc_args, int sc_rc) |
2832 | svoboda | 136 | { |
2871 | svoboda | 137 | ipc_call_t call; |
2832 | svoboda | 138 | int rc; |
139 | |||
2872 | svoboda | 140 | if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY) |
141 | return; |
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142 | |||
2871 | svoboda | 143 | memset(&call, 0, sizeof(call)); |
144 | rc = debug_mem_read(phoneid, &call.args, sc_args[1], sizeof(call.args)); |
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2832 | svoboda | 145 | |
146 | if (rc >= 0) { |
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2874 | svoboda | 147 | ipcp_call_out(sc_args[0], &call, sc_rc); |
2832 | svoboda | 148 | } |
149 | } |
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150 | |||
2872 | svoboda | 151 | void sc_ipc_call_sync_fast(unsigned *sc_args) |
152 | { |
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153 | ipc_call_t question, reply; |
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154 | int rc; |
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155 | int phoneidx; |
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156 | |||
157 | printf("sc_ipc_call_sync_fast()\n"); |
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158 | phoneidx = sc_args[0]; |
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159 | |||
160 | IPC_SET_METHOD(question, sc_args[1]); |
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161 | IPC_SET_ARG1(question, sc_args[2]); |
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162 | IPC_SET_ARG2(question, sc_args[3]); |
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163 | IPC_SET_ARG3(question, sc_args[4]); |
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164 | IPC_SET_ARG4(question, 0); |
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165 | IPC_SET_ARG5(question, 0); |
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166 | |||
167 | printf("memset\n"); |
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168 | memset(&reply, 0, sizeof(reply)); |
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169 | printf("debug_mem_read(phone=%d, buffer_ptr=%u, src_addr=%d, n=%d\n", |
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170 | phoneid, &reply.args, sc_args[5], sizeof(reply.args)); |
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171 | rc = debug_mem_read(phoneid, &reply.args, sc_args[5], sizeof(reply.args)); |
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172 | printf("dmr->%d\n", rc); |
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173 | if (rc < 0) return; |
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174 | |||
2874 | svoboda | 175 | printf("call ipc_call_sync\n"); |
176 | ipcp_call_sync(phoneidx, &question, &reply); |
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2872 | svoboda | 177 | } |
178 | |||
179 | void sc_ipc_call_sync_slow(unsigned *sc_args) |
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180 | { |
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181 | ipc_call_t question, reply; |
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182 | int rc; |
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183 | |||
184 | memset(&question, 0, sizeof(question)); |
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185 | rc = debug_mem_read(phoneid, &question.args, sc_args[1], sizeof(question.args)); |
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186 | printf("dmr->%d\n", rc); |
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187 | if (rc < 0) return; |
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188 | |||
189 | memset(&reply, 0, sizeof(reply)); |
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190 | rc = debug_mem_read(phoneid, &reply.args, sc_args[2], sizeof(reply.args)); |
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191 | printf("dmr->%d\n", rc); |
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192 | if (rc < 0) return; |
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193 | |||
2874 | svoboda | 194 | ipcp_call_sync(sc_args[0], &question, &reply); |
2872 | svoboda | 195 | } |
196 | |||
2871 | svoboda | 197 | void sc_ipc_wait(unsigned *sc_args, int sc_rc) |
198 | { |
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199 | ipc_call_t call; |
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200 | int rc; |
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201 | |||
202 | if (sc_rc == 0) return 0; |
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203 | |||
204 | memset(&call, 0, sizeof(call)); |
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205 | rc = debug_mem_read(phoneid, &call, sc_args[0], sizeof(call)); |
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2872 | svoboda | 206 | // printf("debug_mem_read(phone %d, dest %d, app-mem src %d, size %d -> %d\n", |
207 | // phoneid, (int)&call, sc_args[0], sizeof(call), rc); |
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2871 | svoboda | 208 | |
209 | if (rc >= 0) { |
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2874 | svoboda | 210 | ipcp_call_in(&call, sc_rc); |
2871 | svoboda | 211 | } |
212 | } |
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213 | |||
2868 | svoboda | 214 | void event_syscall(unsigned thread_id, unsigned thread_hash, unsigned sc_id, int sc_rc) |
2867 | svoboda | 215 | { |
216 | unsigned sc_args[6]; |
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217 | int rv_type; |
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218 | int rc; |
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219 | |||
220 | /* Read syscall arguments */ |
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2868 | svoboda | 221 | rc = debug_args_read(phoneid, thread_hash, sc_args); |
2867 | svoboda | 222 | |
223 | async_serialize_start(); |
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224 | |||
2872 | svoboda | 225 | // printf("[%d] ", thread_id); |
2867 | svoboda | 226 | |
227 | if (rc < 0) { |
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228 | printf("error\n"); |
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229 | async_serialize_end(); |
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230 | return; |
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231 | } |
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232 | |||
233 | /* Print syscall name, id and arguments */ |
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234 | printf("%s", syscall_desc[sc_id].name); |
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235 | print_sc_args(sc_args, syscall_desc[sc_id].n_args); |
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236 | rv_type = syscall_desc[sc_id].rv_type; |
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237 | print_sc_retval(sc_rc, rv_type); |
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238 | |||
239 | switch (sc_id) { |
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2871 | svoboda | 240 | case SYS_IPC_CALL_ASYNC_FAST: |
2872 | svoboda | 241 | sc_ipc_call_async_fast(sc_args, sc_rc); |
2871 | svoboda | 242 | break; |
2867 | svoboda | 243 | case SYS_IPC_CALL_ASYNC_SLOW: |
2872 | svoboda | 244 | sc_ipc_call_async_slow(sc_args, sc_rc); |
2867 | svoboda | 245 | break; |
2872 | svoboda | 246 | case SYS_IPC_CALL_SYNC_FAST: |
247 | sc_ipc_call_sync_fast(sc_args); |
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248 | break; |
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249 | case SYS_IPC_CALL_SYNC_SLOW: |
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250 | sc_ipc_call_sync_slow(sc_args); |
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251 | break; |
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2871 | svoboda | 252 | case SYS_IPC_WAIT: |
253 | sc_ipc_wait(sc_args, sc_rc); |
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254 | break; |
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2867 | svoboda | 255 | default: |
256 | break; |
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257 | } |
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258 | |||
259 | async_serialize_end(); |
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260 | } |
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261 | |||
262 | void event_new_thread(unsigned hash) |
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263 | { |
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264 | async_serialize_start(); |
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265 | printf("new thread, hash 0x%x\n", hash); |
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266 | async_serialize_end(); |
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2868 | svoboda | 267 | |
268 | thread_trace_start(hash); |
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2867 | svoboda | 269 | } |
270 | |||
2868 | svoboda | 271 | void trace_loop(void *thread_hash_arg) |
2835 | svoboda | 272 | { |
2832 | svoboda | 273 | int rc; |
274 | unsigned ev_type; |
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2868 | svoboda | 275 | unsigned thread_hash; |
276 | unsigned thread_id; |
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2867 | svoboda | 277 | unsigned val0, val1; |
2832 | svoboda | 278 | |
2868 | svoboda | 279 | thread_hash = (unsigned)thread_hash_arg; |
280 | thread_id = next_thread_id++; |
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2835 | svoboda | 281 | |
2868 | svoboda | 282 | printf("trace_loop(%d)\n", thread_id); |
283 | |||
2835 | svoboda | 284 | while (!abort_trace) { |
285 | |||
2867 | svoboda | 286 | /* Run thread until an event occurs */ |
2868 | svoboda | 287 | rc = debug_go(phoneid, thread_hash, |
2867 | svoboda | 288 | &ev_type, &val0, &val1); |
2832 | svoboda | 289 | |
2872 | svoboda | 290 | // printf("rc = %d, ev_type=%d\n", rc, ev_type); |
2838 | svoboda | 291 | if (ev_type == UDEBUG_EVENT_FINISHED) { |
2868 | svoboda | 292 | printf("thread %u debugging finished\n", thread_id); |
2838 | svoboda | 293 | break; |
294 | } |
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295 | |||
2832 | svoboda | 296 | if (rc >= 0) { |
2867 | svoboda | 297 | switch (ev_type) { |
298 | case UDEBUG_EVENT_SYSCALL: |
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2868 | svoboda | 299 | event_syscall(thread_id, thread_hash, val0, (int)val1); |
2867 | svoboda | 300 | break; |
301 | case UDEBUG_EVENT_NEW_THREAD: |
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302 | event_new_thread(val0); |
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303 | break; |
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304 | default: |
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305 | printf("unknown event type %d\n", ev_type); |
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306 | break; |
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307 | } |
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2832 | svoboda | 308 | } |
309 | |||
310 | } |
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2835 | svoboda | 311 | |
2868 | svoboda | 312 | printf("trace_loop(%d) exiting\n", thread_id); |
2832 | svoboda | 313 | } |
314 | |||
2868 | svoboda | 315 | void thread_trace_start(unsigned thread_hash) |
316 | { |
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317 | fid_t fid; |
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2832 | svoboda | 318 | |
2868 | svoboda | 319 | fid = fibril_create(trace_loop, (void *)thread_hash); |
320 | if (fid == 0) { |
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321 | printf("Warning: Failed creating fibril\n"); |
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322 | } |
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323 | fibril_add_ready(fid); |
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324 | } |
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325 | |||
2832 | svoboda | 326 | void trace_active_task(void) |
327 | { |
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328 | int taskid; |
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329 | int i; |
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330 | int rc; |
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331 | |||
332 | printf("Syscall Tracer\n"); |
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333 | printf("Press 'c' to connect\n"); |
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334 | while ((i = getchar()) != 'c') |
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335 | putchar(i); |
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336 | |||
2850 | svoboda | 337 | taskid = 14; |
2832 | svoboda | 338 | rc = task_connect(taskid); |
339 | if (rc < 0) { |
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340 | printf("Failed to connect to task %d\n", taskid); |
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341 | return; |
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342 | } |
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343 | |||
344 | printf("Connected to task %d\n", taskid); |
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345 | |||
2873 | svoboda | 346 | ipcp_init(); |
347 | |||
2832 | svoboda | 348 | rc = get_thread_list(); |
349 | if (rc < 0) { |
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350 | printf("Failed to get thread list (error %d)\n", rc); |
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351 | return; |
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352 | } |
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353 | |||
2850 | svoboda | 354 | abort_trace = 0; |
2832 | svoboda | 355 | |
2850 | svoboda | 356 | for (i = 0; i < n_threads; i++) { |
2868 | svoboda | 357 | thread_trace_start(thread_hash_buf[i]); |
2850 | svoboda | 358 | } |
359 | |||
360 | getchar(); |
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361 | |||
362 | printf("terminate debugging session...\n"); |
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363 | abort_trace = 1; |
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2835 | svoboda | 364 | debug_end(phoneid); |
2850 | svoboda | 365 | ipc_hangup(phoneid); |
366 | |||
2873 | svoboda | 367 | ipcp_cleanup(); |
368 | |||
2832 | svoboda | 369 | printf("done\n"); |
370 | return; |
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371 | } |
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372 | |||
373 | int main(void) |
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374 | { |
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2868 | svoboda | 375 | next_thread_id = 1; |
376 | |||
2835 | svoboda | 377 | while (1) { |
378 | trace_active_task(); |
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379 | } |
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2832 | svoboda | 380 | } |
381 | |||
382 | /** @} |
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383 | */ |