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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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2878 | svoboda | 8 | #include <stdlib.h> |
2832 | svoboda | 9 | #include <unistd.h> |
10 | #include <syscall.h> |
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11 | #include <ipc/ipc.h> |
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2835 | svoboda | 12 | #include <fibril.h> |
13 | #include <errno.h> |
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2838 | svoboda | 14 | #include <udebug.h> |
2862 | svoboda | 15 | #include <async.h> |
2832 | svoboda | 16 | |
2880 | svoboda | 17 | // Temporary: service and method names |
2878 | svoboda | 18 | #include "proto.h" |
19 | #include <ipc/services.h> |
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2880 | svoboda | 20 | #include "../../srv/vfs/vfs.h" |
2878 | svoboda | 21 | |
2832 | svoboda | 22 | #include "syscalls.h" |
2874 | svoboda | 23 | #include "ipcp.h" |
2832 | svoboda | 24 | #include "errors.h" |
25 | #include "debug_api.h" |
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26 | |||
2868 | svoboda | 27 | #define THBUF_SIZE 64 |
28 | unsigned thread_hash_buf[THBUF_SIZE]; |
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2850 | svoboda | 29 | unsigned n_threads; |
2832 | svoboda | 30 | |
2868 | svoboda | 31 | int next_thread_id; |
32 | |||
2832 | svoboda | 33 | int phoneid; |
2835 | svoboda | 34 | int abort_trace; |
2832 | svoboda | 35 | |
2868 | svoboda | 36 | void thread_trace_start(unsigned thread_hash); |
37 | |||
38 | |||
2832 | svoboda | 39 | int task_connect(int taskid) |
40 | { |
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41 | int rc; |
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42 | |||
43 | printf("ipc_connect_task(%d)...\n", taskid); |
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44 | rc = ipc_connect_kbox(taskid); |
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45 | printf("-> %d\n", rc); |
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46 | phoneid = rc; |
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47 | if (rc < 0) return rc; |
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48 | |||
49 | printf("debug_begin()\n"); |
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50 | rc = debug_begin(phoneid); |
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51 | printf("-> %d\n", rc); |
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52 | if (rc < 0) return rc; |
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53 | |||
54 | return 0; |
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55 | } |
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56 | |||
57 | int get_thread_list(void) |
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58 | { |
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59 | int rc; |
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60 | int tb_copied; |
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61 | int tb_needed; |
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62 | int i; |
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63 | |||
64 | |||
65 | printf("send IPC_M_DEBUG_THREAD_READ message\n"); |
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2868 | svoboda | 66 | rc = debug_thread_read(phoneid, (unsigned)thread_hash_buf, |
67 | THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed); |
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2832 | svoboda | 68 | printf("-> %d\n", rc); |
69 | if (rc < 0) return rc; |
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70 | |||
2850 | svoboda | 71 | n_threads = tb_copied / sizeof(unsigned); |
72 | |||
2832 | svoboda | 73 | printf("thread IDs:"); |
2850 | svoboda | 74 | for (i=0; i<n_threads; i++) { |
2868 | svoboda | 75 | printf(" %u", thread_hash_buf[i]); |
2832 | svoboda | 76 | } |
77 | printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned)); |
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78 | |||
79 | return 0; |
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80 | } |
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81 | |||
82 | void print_sc_retval(int retval, rv_type_t rv_type) |
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83 | { |
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84 | printf (" -> "); |
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85 | if (rv_type == RV_INTEGER) { |
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86 | printf("%d", retval); |
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87 | } else if (rv_type == RV_HASH) { |
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88 | printf("0x%08x", retval); |
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89 | } else if (rv_type == RV_ERRNO) { |
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90 | if (retval >= -15 && retval <= 0) { |
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91 | printf("%d %s (%s)", retval, |
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92 | err_desc[retval].name, |
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93 | err_desc[retval].desc); |
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94 | } else { |
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95 | printf("%d", retval); |
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96 | } |
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97 | } else if (rv_type == RV_INT_ERRNO) { |
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98 | if (retval >= -15 && retval < 0) { |
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99 | printf("%d %s (%s)", retval, |
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100 | err_desc[retval].name, |
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101 | err_desc[retval].desc); |
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102 | } else { |
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103 | printf("%d", retval); |
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104 | } |
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105 | } |
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106 | putchar('\n'); |
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107 | } |
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108 | |||
109 | void print_sc_args(unsigned *sc_args, int n) |
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110 | { |
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111 | int i; |
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112 | |||
113 | putchar('('); |
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114 | if (n > 0) printf("%d", sc_args[0]); |
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115 | for (i=1; i<n; i++) { |
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116 | printf(", %d", sc_args[i]); |
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117 | } |
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118 | putchar(')'); |
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119 | } |
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120 | |||
2872 | svoboda | 121 | void sc_ipc_call_async_fast(unsigned *sc_args, int sc_rc) |
2871 | svoboda | 122 | { |
123 | ipc_call_t call; |
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124 | int phoneid; |
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2872 | svoboda | 125 | |
126 | if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY) |
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127 | return; |
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2871 | svoboda | 128 | |
129 | phoneid = sc_args[0]; |
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130 | |||
131 | IPC_SET_METHOD(call, sc_args[1]); |
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132 | IPC_SET_ARG1(call, sc_args[2]); |
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133 | IPC_SET_ARG2(call, sc_args[3]); |
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134 | IPC_SET_ARG3(call, sc_args[4]); |
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135 | IPC_SET_ARG4(call, sc_args[5]); |
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136 | IPC_SET_ARG5(call, 0); |
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137 | |||
2874 | svoboda | 138 | ipcp_call_out(phoneid, &call, sc_rc); |
2871 | svoboda | 139 | } |
140 | |||
2872 | svoboda | 141 | void sc_ipc_call_async_slow(unsigned *sc_args, int sc_rc) |
2832 | svoboda | 142 | { |
2871 | svoboda | 143 | ipc_call_t call; |
2832 | svoboda | 144 | int rc; |
145 | |||
2872 | svoboda | 146 | if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY) |
147 | return; |
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148 | |||
2871 | svoboda | 149 | memset(&call, 0, sizeof(call)); |
150 | rc = debug_mem_read(phoneid, &call.args, sc_args[1], sizeof(call.args)); |
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2832 | svoboda | 151 | |
152 | if (rc >= 0) { |
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2874 | svoboda | 153 | ipcp_call_out(sc_args[0], &call, sc_rc); |
2832 | svoboda | 154 | } |
155 | } |
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156 | |||
2872 | svoboda | 157 | void sc_ipc_call_sync_fast(unsigned *sc_args) |
158 | { |
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159 | ipc_call_t question, reply; |
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160 | int rc; |
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161 | int phoneidx; |
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162 | |||
2877 | svoboda | 163 | // printf("sc_ipc_call_sync_fast()\n"); |
2872 | svoboda | 164 | phoneidx = sc_args[0]; |
165 | |||
166 | IPC_SET_METHOD(question, sc_args[1]); |
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167 | IPC_SET_ARG1(question, sc_args[2]); |
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168 | IPC_SET_ARG2(question, sc_args[3]); |
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169 | IPC_SET_ARG3(question, sc_args[4]); |
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170 | IPC_SET_ARG4(question, 0); |
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171 | IPC_SET_ARG5(question, 0); |
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172 | |||
2877 | svoboda | 173 | // printf("memset\n"); |
2872 | svoboda | 174 | memset(&reply, 0, sizeof(reply)); |
2877 | svoboda | 175 | // printf("debug_mem_read(phone=%d, buffer_ptr=%u, src_addr=%d, n=%d\n", |
176 | // phoneid, &reply.args, sc_args[5], sizeof(reply.args)); |
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2872 | svoboda | 177 | rc = debug_mem_read(phoneid, &reply.args, sc_args[5], sizeof(reply.args)); |
2877 | svoboda | 178 | // printf("dmr->%d\n", rc); |
2872 | svoboda | 179 | if (rc < 0) return; |
180 | |||
2877 | svoboda | 181 | // printf("call ipc_call_sync\n"); |
2874 | svoboda | 182 | ipcp_call_sync(phoneidx, &question, &reply); |
2872 | svoboda | 183 | } |
184 | |||
185 | void sc_ipc_call_sync_slow(unsigned *sc_args) |
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186 | { |
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187 | ipc_call_t question, reply; |
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188 | int rc; |
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189 | |||
190 | memset(&question, 0, sizeof(question)); |
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191 | rc = debug_mem_read(phoneid, &question.args, sc_args[1], sizeof(question.args)); |
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192 | printf("dmr->%d\n", rc); |
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193 | if (rc < 0) return; |
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194 | |||
195 | memset(&reply, 0, sizeof(reply)); |
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196 | rc = debug_mem_read(phoneid, &reply.args, sc_args[2], sizeof(reply.args)); |
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197 | printf("dmr->%d\n", rc); |
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198 | if (rc < 0) return; |
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199 | |||
2874 | svoboda | 200 | ipcp_call_sync(sc_args[0], &question, &reply); |
2872 | svoboda | 201 | } |
202 | |||
2871 | svoboda | 203 | void sc_ipc_wait(unsigned *sc_args, int sc_rc) |
204 | { |
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205 | ipc_call_t call; |
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206 | int rc; |
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207 | |||
208 | if (sc_rc == 0) return 0; |
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209 | |||
210 | memset(&call, 0, sizeof(call)); |
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211 | rc = debug_mem_read(phoneid, &call, sc_args[0], sizeof(call)); |
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2872 | svoboda | 212 | // printf("debug_mem_read(phone %d, dest %d, app-mem src %d, size %d -> %d\n", |
213 | // phoneid, (int)&call, sc_args[0], sizeof(call), rc); |
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2871 | svoboda | 214 | |
215 | if (rc >= 0) { |
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2874 | svoboda | 216 | ipcp_call_in(&call, sc_rc); |
2871 | svoboda | 217 | } |
218 | } |
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219 | |||
2868 | svoboda | 220 | void event_syscall(unsigned thread_id, unsigned thread_hash, unsigned sc_id, int sc_rc) |
2867 | svoboda | 221 | { |
222 | unsigned sc_args[6]; |
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223 | int rv_type; |
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224 | int rc; |
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225 | |||
226 | /* Read syscall arguments */ |
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2868 | svoboda | 227 | rc = debug_args_read(phoneid, thread_hash, sc_args); |
2867 | svoboda | 228 | |
229 | async_serialize_start(); |
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230 | |||
2872 | svoboda | 231 | // printf("[%d] ", thread_id); |
2867 | svoboda | 232 | |
233 | if (rc < 0) { |
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234 | printf("error\n"); |
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235 | async_serialize_end(); |
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236 | return; |
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237 | } |
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238 | |||
239 | /* Print syscall name, id and arguments */ |
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240 | printf("%s", syscall_desc[sc_id].name); |
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241 | print_sc_args(sc_args, syscall_desc[sc_id].n_args); |
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242 | rv_type = syscall_desc[sc_id].rv_type; |
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243 | print_sc_retval(sc_rc, rv_type); |
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244 | |||
245 | switch (sc_id) { |
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2871 | svoboda | 246 | case SYS_IPC_CALL_ASYNC_FAST: |
2872 | svoboda | 247 | sc_ipc_call_async_fast(sc_args, sc_rc); |
2871 | svoboda | 248 | break; |
2867 | svoboda | 249 | case SYS_IPC_CALL_ASYNC_SLOW: |
2872 | svoboda | 250 | sc_ipc_call_async_slow(sc_args, sc_rc); |
2867 | svoboda | 251 | break; |
2872 | svoboda | 252 | case SYS_IPC_CALL_SYNC_FAST: |
253 | sc_ipc_call_sync_fast(sc_args); |
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254 | break; |
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255 | case SYS_IPC_CALL_SYNC_SLOW: |
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256 | sc_ipc_call_sync_slow(sc_args); |
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257 | break; |
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2871 | svoboda | 258 | case SYS_IPC_WAIT: |
259 | sc_ipc_wait(sc_args, sc_rc); |
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260 | break; |
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2867 | svoboda | 261 | default: |
262 | break; |
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263 | } |
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264 | |||
265 | async_serialize_end(); |
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266 | } |
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267 | |||
268 | void event_new_thread(unsigned hash) |
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269 | { |
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270 | async_serialize_start(); |
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271 | printf("new thread, hash 0x%x\n", hash); |
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272 | async_serialize_end(); |
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2868 | svoboda | 273 | |
274 | thread_trace_start(hash); |
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2867 | svoboda | 275 | } |
276 | |||
2868 | svoboda | 277 | void trace_loop(void *thread_hash_arg) |
2835 | svoboda | 278 | { |
2832 | svoboda | 279 | int rc; |
280 | unsigned ev_type; |
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2868 | svoboda | 281 | unsigned thread_hash; |
282 | unsigned thread_id; |
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2867 | svoboda | 283 | unsigned val0, val1; |
2832 | svoboda | 284 | |
2868 | svoboda | 285 | thread_hash = (unsigned)thread_hash_arg; |
286 | thread_id = next_thread_id++; |
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2835 | svoboda | 287 | |
2868 | svoboda | 288 | printf("trace_loop(%d)\n", thread_id); |
289 | |||
2835 | svoboda | 290 | while (!abort_trace) { |
291 | |||
2867 | svoboda | 292 | /* Run thread until an event occurs */ |
2868 | svoboda | 293 | rc = debug_go(phoneid, thread_hash, |
2867 | svoboda | 294 | &ev_type, &val0, &val1); |
2832 | svoboda | 295 | |
2872 | svoboda | 296 | // printf("rc = %d, ev_type=%d\n", rc, ev_type); |
2838 | svoboda | 297 | if (ev_type == UDEBUG_EVENT_FINISHED) { |
2868 | svoboda | 298 | printf("thread %u debugging finished\n", thread_id); |
2838 | svoboda | 299 | break; |
300 | } |
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301 | |||
2832 | svoboda | 302 | if (rc >= 0) { |
2867 | svoboda | 303 | switch (ev_type) { |
304 | case UDEBUG_EVENT_SYSCALL: |
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2868 | svoboda | 305 | event_syscall(thread_id, thread_hash, val0, (int)val1); |
2867 | svoboda | 306 | break; |
307 | case UDEBUG_EVENT_NEW_THREAD: |
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308 | event_new_thread(val0); |
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309 | break; |
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310 | default: |
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311 | printf("unknown event type %d\n", ev_type); |
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312 | break; |
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313 | } |
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2832 | svoboda | 314 | } |
315 | |||
316 | } |
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2835 | svoboda | 317 | |
2868 | svoboda | 318 | printf("trace_loop(%d) exiting\n", thread_id); |
2832 | svoboda | 319 | } |
320 | |||
2868 | svoboda | 321 | void thread_trace_start(unsigned thread_hash) |
322 | { |
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323 | fid_t fid; |
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2832 | svoboda | 324 | |
2868 | svoboda | 325 | fid = fibril_create(trace_loop, (void *)thread_hash); |
326 | if (fid == 0) { |
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327 | printf("Warning: Failed creating fibril\n"); |
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328 | } |
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329 | fibril_add_ready(fid); |
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330 | } |
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331 | |||
2832 | svoboda | 332 | void trace_active_task(void) |
333 | { |
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334 | int taskid; |
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335 | int i; |
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336 | int rc; |
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337 | |||
338 | printf("Syscall Tracer\n"); |
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339 | printf("Press 'c' to connect\n"); |
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340 | while ((i = getchar()) != 'c') |
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341 | putchar(i); |
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342 | |||
2850 | svoboda | 343 | taskid = 14; |
2832 | svoboda | 344 | rc = task_connect(taskid); |
345 | if (rc < 0) { |
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346 | printf("Failed to connect to task %d\n", taskid); |
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347 | return; |
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348 | } |
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349 | |||
350 | printf("Connected to task %d\n", taskid); |
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351 | |||
2873 | svoboda | 352 | ipcp_init(); |
353 | |||
2832 | svoboda | 354 | rc = get_thread_list(); |
355 | if (rc < 0) { |
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356 | printf("Failed to get thread list (error %d)\n", rc); |
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357 | return; |
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358 | } |
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359 | |||
2850 | svoboda | 360 | abort_trace = 0; |
2832 | svoboda | 361 | |
2850 | svoboda | 362 | for (i = 0; i < n_threads; i++) { |
2868 | svoboda | 363 | thread_trace_start(thread_hash_buf[i]); |
2850 | svoboda | 364 | } |
365 | |||
366 | getchar(); |
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367 | |||
368 | printf("terminate debugging session...\n"); |
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369 | abort_trace = 1; |
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2835 | svoboda | 370 | debug_end(phoneid); |
2850 | svoboda | 371 | ipc_hangup(phoneid); |
372 | |||
2873 | svoboda | 373 | ipcp_cleanup(); |
374 | |||
2832 | svoboda | 375 | printf("done\n"); |
376 | return; |
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377 | } |
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378 | |||
2878 | svoboda | 379 | static void main_init(void) |
2832 | svoboda | 380 | { |
2878 | svoboda | 381 | proto_t *p; |
2880 | svoboda | 382 | oper_t *o; |
2878 | svoboda | 383 | |
2868 | svoboda | 384 | next_thread_id = 1; |
385 | |||
2878 | svoboda | 386 | proto_init(); |
387 | |||
2880 | svoboda | 388 | o = malloc(sizeof(oper_t)); |
389 | o->name = "mount"; |
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390 | |||
391 | p = proto_new("vfs"); |
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392 | proto_add_oper(p, VFS_MOUNT, o); |
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393 | |||
2878 | svoboda | 394 | proto_register(SERVICE_VFS, p); |
395 | } |
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396 | |||
397 | int main(void) |
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398 | { |
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399 | main_init(); |
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400 | |||
2835 | svoboda | 401 | while (1) { |
402 | trace_active_task(); |
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403 | } |
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2832 | svoboda | 404 | } |
405 | |||
406 | /** @} |
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407 | */ |