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2894 | svoboda | 1 | /* |
2 | * Copyright (c) 2008 Jiri Svoboda |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
2832 | svoboda | 29 | /** @addtogroup sctrace |
30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
35 | #include <stdio.h> |
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2878 | svoboda | 36 | #include <stdlib.h> |
2832 | svoboda | 37 | #include <unistd.h> |
38 | #include <syscall.h> |
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39 | #include <ipc/ipc.h> |
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2835 | svoboda | 40 | #include <fibril.h> |
41 | #include <errno.h> |
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2838 | svoboda | 42 | #include <udebug.h> |
2862 | svoboda | 43 | #include <async.h> |
2832 | svoboda | 44 | |
2880 | svoboda | 45 | // Temporary: service and method names |
2878 | svoboda | 46 | #include "proto.h" |
47 | #include <ipc/services.h> |
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2880 | svoboda | 48 | #include "../../srv/vfs/vfs.h" |
2882 | svoboda | 49 | #include "../../srv/console/console.h" |
2878 | svoboda | 50 | |
2832 | svoboda | 51 | #include "syscalls.h" |
2874 | svoboda | 52 | #include "ipcp.h" |
2832 | svoboda | 53 | #include "errors.h" |
54 | #include "debug_api.h" |
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55 | |||
2868 | svoboda | 56 | #define THBUF_SIZE 64 |
57 | unsigned thread_hash_buf[THBUF_SIZE]; |
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2850 | svoboda | 58 | unsigned n_threads; |
2832 | svoboda | 59 | |
2868 | svoboda | 60 | int next_thread_id; |
61 | |||
2832 | svoboda | 62 | int phoneid; |
2835 | svoboda | 63 | int abort_trace; |
2832 | svoboda | 64 | |
2868 | svoboda | 65 | void thread_trace_start(unsigned thread_hash); |
66 | |||
2882 | svoboda | 67 | static proto_t *proto_console; |
2868 | svoboda | 68 | |
2832 | svoboda | 69 | int task_connect(int taskid) |
70 | { |
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71 | int rc; |
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72 | |||
73 | printf("ipc_connect_task(%d)...\n", taskid); |
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74 | rc = ipc_connect_kbox(taskid); |
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75 | printf("-> %d\n", rc); |
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76 | phoneid = rc; |
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77 | if (rc < 0) return rc; |
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78 | |||
79 | printf("debug_begin()\n"); |
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80 | rc = debug_begin(phoneid); |
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81 | printf("-> %d\n", rc); |
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82 | if (rc < 0) return rc; |
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83 | |||
84 | return 0; |
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85 | } |
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86 | |||
87 | int get_thread_list(void) |
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88 | { |
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89 | int rc; |
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90 | int tb_copied; |
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91 | int tb_needed; |
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92 | int i; |
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93 | |||
94 | |||
95 | printf("send IPC_M_DEBUG_THREAD_READ message\n"); |
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2868 | svoboda | 96 | rc = debug_thread_read(phoneid, (unsigned)thread_hash_buf, |
97 | THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed); |
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2832 | svoboda | 98 | printf("-> %d\n", rc); |
99 | if (rc < 0) return rc; |
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100 | |||
2850 | svoboda | 101 | n_threads = tb_copied / sizeof(unsigned); |
102 | |||
2832 | svoboda | 103 | printf("thread IDs:"); |
2850 | svoboda | 104 | for (i=0; i<n_threads; i++) { |
2868 | svoboda | 105 | printf(" %u", thread_hash_buf[i]); |
2832 | svoboda | 106 | } |
107 | printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned)); |
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108 | |||
109 | return 0; |
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110 | } |
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111 | |||
112 | void print_sc_retval(int retval, rv_type_t rv_type) |
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113 | { |
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114 | printf (" -> "); |
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115 | if (rv_type == RV_INTEGER) { |
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116 | printf("%d", retval); |
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117 | } else if (rv_type == RV_HASH) { |
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118 | printf("0x%08x", retval); |
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119 | } else if (rv_type == RV_ERRNO) { |
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120 | if (retval >= -15 && retval <= 0) { |
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121 | printf("%d %s (%s)", retval, |
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122 | err_desc[retval].name, |
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123 | err_desc[retval].desc); |
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124 | } else { |
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125 | printf("%d", retval); |
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126 | } |
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127 | } else if (rv_type == RV_INT_ERRNO) { |
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128 | if (retval >= -15 && retval < 0) { |
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129 | printf("%d %s (%s)", retval, |
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130 | err_desc[retval].name, |
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131 | err_desc[retval].desc); |
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132 | } else { |
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133 | printf("%d", retval); |
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134 | } |
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135 | } |
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136 | putchar('\n'); |
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137 | } |
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138 | |||
139 | void print_sc_args(unsigned *sc_args, int n) |
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140 | { |
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141 | int i; |
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142 | |||
143 | putchar('('); |
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144 | if (n > 0) printf("%d", sc_args[0]); |
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145 | for (i=1; i<n; i++) { |
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146 | printf(", %d", sc_args[i]); |
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147 | } |
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148 | putchar(')'); |
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149 | } |
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150 | |||
2872 | svoboda | 151 | void sc_ipc_call_async_fast(unsigned *sc_args, int sc_rc) |
2871 | svoboda | 152 | { |
153 | ipc_call_t call; |
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154 | int phoneid; |
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2872 | svoboda | 155 | |
156 | if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY) |
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157 | return; |
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2871 | svoboda | 158 | |
159 | phoneid = sc_args[0]; |
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160 | |||
161 | IPC_SET_METHOD(call, sc_args[1]); |
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162 | IPC_SET_ARG1(call, sc_args[2]); |
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163 | IPC_SET_ARG2(call, sc_args[3]); |
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164 | IPC_SET_ARG3(call, sc_args[4]); |
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165 | IPC_SET_ARG4(call, sc_args[5]); |
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166 | IPC_SET_ARG5(call, 0); |
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167 | |||
2874 | svoboda | 168 | ipcp_call_out(phoneid, &call, sc_rc); |
2871 | svoboda | 169 | } |
170 | |||
2872 | svoboda | 171 | void sc_ipc_call_async_slow(unsigned *sc_args, int sc_rc) |
2832 | svoboda | 172 | { |
2871 | svoboda | 173 | ipc_call_t call; |
2832 | svoboda | 174 | int rc; |
175 | |||
2872 | svoboda | 176 | if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY) |
177 | return; |
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178 | |||
2871 | svoboda | 179 | memset(&call, 0, sizeof(call)); |
180 | rc = debug_mem_read(phoneid, &call.args, sc_args[1], sizeof(call.args)); |
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2832 | svoboda | 181 | |
182 | if (rc >= 0) { |
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2874 | svoboda | 183 | ipcp_call_out(sc_args[0], &call, sc_rc); |
2832 | svoboda | 184 | } |
185 | } |
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186 | |||
2872 | svoboda | 187 | void sc_ipc_call_sync_fast(unsigned *sc_args) |
188 | { |
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189 | ipc_call_t question, reply; |
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190 | int rc; |
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191 | int phoneidx; |
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192 | |||
2877 | svoboda | 193 | // printf("sc_ipc_call_sync_fast()\n"); |
2872 | svoboda | 194 | phoneidx = sc_args[0]; |
195 | |||
196 | IPC_SET_METHOD(question, sc_args[1]); |
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197 | IPC_SET_ARG1(question, sc_args[2]); |
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198 | IPC_SET_ARG2(question, sc_args[3]); |
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199 | IPC_SET_ARG3(question, sc_args[4]); |
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200 | IPC_SET_ARG4(question, 0); |
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201 | IPC_SET_ARG5(question, 0); |
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202 | |||
2877 | svoboda | 203 | // printf("memset\n"); |
2872 | svoboda | 204 | memset(&reply, 0, sizeof(reply)); |
2877 | svoboda | 205 | // printf("debug_mem_read(phone=%d, buffer_ptr=%u, src_addr=%d, n=%d\n", |
206 | // phoneid, &reply.args, sc_args[5], sizeof(reply.args)); |
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2872 | svoboda | 207 | rc = debug_mem_read(phoneid, &reply.args, sc_args[5], sizeof(reply.args)); |
2877 | svoboda | 208 | // printf("dmr->%d\n", rc); |
2872 | svoboda | 209 | if (rc < 0) return; |
210 | |||
2877 | svoboda | 211 | // printf("call ipc_call_sync\n"); |
2874 | svoboda | 212 | ipcp_call_sync(phoneidx, &question, &reply); |
2872 | svoboda | 213 | } |
214 | |||
215 | void sc_ipc_call_sync_slow(unsigned *sc_args) |
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216 | { |
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217 | ipc_call_t question, reply; |
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218 | int rc; |
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219 | |||
220 | memset(&question, 0, sizeof(question)); |
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221 | rc = debug_mem_read(phoneid, &question.args, sc_args[1], sizeof(question.args)); |
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222 | printf("dmr->%d\n", rc); |
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223 | if (rc < 0) return; |
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224 | |||
225 | memset(&reply, 0, sizeof(reply)); |
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226 | rc = debug_mem_read(phoneid, &reply.args, sc_args[2], sizeof(reply.args)); |
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227 | printf("dmr->%d\n", rc); |
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228 | if (rc < 0) return; |
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229 | |||
2874 | svoboda | 230 | ipcp_call_sync(sc_args[0], &question, &reply); |
2872 | svoboda | 231 | } |
232 | |||
2871 | svoboda | 233 | void sc_ipc_wait(unsigned *sc_args, int sc_rc) |
234 | { |
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235 | ipc_call_t call; |
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236 | int rc; |
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237 | |||
238 | if (sc_rc == 0) return 0; |
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239 | |||
240 | memset(&call, 0, sizeof(call)); |
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241 | rc = debug_mem_read(phoneid, &call, sc_args[0], sizeof(call)); |
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2872 | svoboda | 242 | // printf("debug_mem_read(phone %d, dest %d, app-mem src %d, size %d -> %d\n", |
243 | // phoneid, (int)&call, sc_args[0], sizeof(call), rc); |
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2871 | svoboda | 244 | |
245 | if (rc >= 0) { |
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2874 | svoboda | 246 | ipcp_call_in(&call, sc_rc); |
2871 | svoboda | 247 | } |
248 | } |
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249 | |||
2868 | svoboda | 250 | void event_syscall(unsigned thread_id, unsigned thread_hash, unsigned sc_id, int sc_rc) |
2867 | svoboda | 251 | { |
252 | unsigned sc_args[6]; |
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253 | int rv_type; |
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254 | int rc; |
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255 | |||
256 | /* Read syscall arguments */ |
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2868 | svoboda | 257 | rc = debug_args_read(phoneid, thread_hash, sc_args); |
2867 | svoboda | 258 | |
259 | async_serialize_start(); |
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260 | |||
2872 | svoboda | 261 | // printf("[%d] ", thread_id); |
2867 | svoboda | 262 | |
263 | if (rc < 0) { |
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264 | printf("error\n"); |
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265 | async_serialize_end(); |
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266 | return; |
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267 | } |
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268 | |||
269 | /* Print syscall name, id and arguments */ |
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270 | printf("%s", syscall_desc[sc_id].name); |
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271 | print_sc_args(sc_args, syscall_desc[sc_id].n_args); |
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272 | rv_type = syscall_desc[sc_id].rv_type; |
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273 | print_sc_retval(sc_rc, rv_type); |
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274 | |||
275 | switch (sc_id) { |
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2871 | svoboda | 276 | case SYS_IPC_CALL_ASYNC_FAST: |
2872 | svoboda | 277 | sc_ipc_call_async_fast(sc_args, sc_rc); |
2871 | svoboda | 278 | break; |
2867 | svoboda | 279 | case SYS_IPC_CALL_ASYNC_SLOW: |
2872 | svoboda | 280 | sc_ipc_call_async_slow(sc_args, sc_rc); |
2867 | svoboda | 281 | break; |
2872 | svoboda | 282 | case SYS_IPC_CALL_SYNC_FAST: |
283 | sc_ipc_call_sync_fast(sc_args); |
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284 | break; |
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285 | case SYS_IPC_CALL_SYNC_SLOW: |
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286 | sc_ipc_call_sync_slow(sc_args); |
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287 | break; |
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2871 | svoboda | 288 | case SYS_IPC_WAIT: |
289 | sc_ipc_wait(sc_args, sc_rc); |
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290 | break; |
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2867 | svoboda | 291 | default: |
292 | break; |
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293 | } |
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294 | |||
295 | async_serialize_end(); |
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296 | } |
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297 | |||
298 | void event_new_thread(unsigned hash) |
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299 | { |
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300 | async_serialize_start(); |
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301 | printf("new thread, hash 0x%x\n", hash); |
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302 | async_serialize_end(); |
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2868 | svoboda | 303 | |
304 | thread_trace_start(hash); |
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2867 | svoboda | 305 | } |
306 | |||
2868 | svoboda | 307 | void trace_loop(void *thread_hash_arg) |
2835 | svoboda | 308 | { |
2832 | svoboda | 309 | int rc; |
310 | unsigned ev_type; |
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2868 | svoboda | 311 | unsigned thread_hash; |
312 | unsigned thread_id; |
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2867 | svoboda | 313 | unsigned val0, val1; |
2832 | svoboda | 314 | |
2868 | svoboda | 315 | thread_hash = (unsigned)thread_hash_arg; |
316 | thread_id = next_thread_id++; |
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2835 | svoboda | 317 | |
2868 | svoboda | 318 | printf("trace_loop(%d)\n", thread_id); |
319 | |||
2835 | svoboda | 320 | while (!abort_trace) { |
321 | |||
2867 | svoboda | 322 | /* Run thread until an event occurs */ |
2868 | svoboda | 323 | rc = debug_go(phoneid, thread_hash, |
2867 | svoboda | 324 | &ev_type, &val0, &val1); |
2832 | svoboda | 325 | |
2872 | svoboda | 326 | // printf("rc = %d, ev_type=%d\n", rc, ev_type); |
2838 | svoboda | 327 | if (ev_type == UDEBUG_EVENT_FINISHED) { |
2868 | svoboda | 328 | printf("thread %u debugging finished\n", thread_id); |
2838 | svoboda | 329 | break; |
330 | } |
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331 | |||
2832 | svoboda | 332 | if (rc >= 0) { |
2867 | svoboda | 333 | switch (ev_type) { |
334 | case UDEBUG_EVENT_SYSCALL: |
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2868 | svoboda | 335 | event_syscall(thread_id, thread_hash, val0, (int)val1); |
2867 | svoboda | 336 | break; |
337 | case UDEBUG_EVENT_NEW_THREAD: |
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338 | event_new_thread(val0); |
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339 | break; |
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340 | default: |
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341 | printf("unknown event type %d\n", ev_type); |
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342 | break; |
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343 | } |
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2832 | svoboda | 344 | } |
345 | |||
346 | } |
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2835 | svoboda | 347 | |
2868 | svoboda | 348 | printf("trace_loop(%d) exiting\n", thread_id); |
2832 | svoboda | 349 | } |
350 | |||
2868 | svoboda | 351 | void thread_trace_start(unsigned thread_hash) |
352 | { |
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353 | fid_t fid; |
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2832 | svoboda | 354 | |
2868 | svoboda | 355 | fid = fibril_create(trace_loop, (void *)thread_hash); |
356 | if (fid == 0) { |
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357 | printf("Warning: Failed creating fibril\n"); |
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358 | } |
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359 | fibril_add_ready(fid); |
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360 | } |
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361 | |||
2832 | svoboda | 362 | void trace_active_task(void) |
363 | { |
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364 | int taskid; |
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365 | int i; |
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366 | int rc; |
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367 | |||
368 | printf("Syscall Tracer\n"); |
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369 | printf("Press 'c' to connect\n"); |
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370 | while ((i = getchar()) != 'c') |
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371 | putchar(i); |
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372 | |||
2850 | svoboda | 373 | taskid = 14; |
2832 | svoboda | 374 | rc = task_connect(taskid); |
375 | if (rc < 0) { |
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376 | printf("Failed to connect to task %d\n", taskid); |
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377 | return; |
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378 | } |
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379 | |||
380 | printf("Connected to task %d\n", taskid); |
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381 | |||
2873 | svoboda | 382 | ipcp_init(); |
2882 | svoboda | 383 | ipcp_connection_set(1, 0, proto_console); |
2873 | svoboda | 384 | |
2832 | svoboda | 385 | rc = get_thread_list(); |
386 | if (rc < 0) { |
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387 | printf("Failed to get thread list (error %d)\n", rc); |
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388 | return; |
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389 | } |
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390 | |||
2850 | svoboda | 391 | abort_trace = 0; |
2832 | svoboda | 392 | |
2850 | svoboda | 393 | for (i = 0; i < n_threads; i++) { |
2868 | svoboda | 394 | thread_trace_start(thread_hash_buf[i]); |
2850 | svoboda | 395 | } |
396 | |||
397 | getchar(); |
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398 | |||
399 | printf("terminate debugging session...\n"); |
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400 | abort_trace = 1; |
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2835 | svoboda | 401 | debug_end(phoneid); |
2850 | svoboda | 402 | ipc_hangup(phoneid); |
403 | |||
2873 | svoboda | 404 | ipcp_cleanup(); |
405 | |||
2832 | svoboda | 406 | printf("done\n"); |
407 | return; |
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408 | } |
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409 | |||
2878 | svoboda | 410 | static void main_init(void) |
2832 | svoboda | 411 | { |
2878 | svoboda | 412 | proto_t *p; |
2880 | svoboda | 413 | oper_t *o; |
2878 | svoboda | 414 | |
2868 | svoboda | 415 | next_thread_id = 1; |
416 | |||
2878 | svoboda | 417 | proto_init(); |
418 | |||
2880 | svoboda | 419 | p = proto_new("vfs"); |
2883 | svoboda | 420 | o = oper_new("read"); |
421 | proto_add_oper(p, VFS_READ, o); |
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422 | o = oper_new("write"); |
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423 | proto_add_oper(p, VFS_WRITE, o); |
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424 | o = oper_new("truncate"); |
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425 | proto_add_oper(p, VFS_TRUNCATE, o); |
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426 | o = oper_new("mount"); |
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2880 | svoboda | 427 | proto_add_oper(p, VFS_MOUNT, o); |
2883 | svoboda | 428 | o = oper_new("unmount"); |
429 | proto_add_oper(p, VFS_UNMOUNT, o); |
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2880 | svoboda | 430 | |
2878 | svoboda | 431 | proto_register(SERVICE_VFS, p); |
2882 | svoboda | 432 | |
433 | p = proto_new("console"); |
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2883 | svoboda | 434 | o = oper_new("getchar"); |
435 | proto_add_oper(p, CONSOLE_GETCHAR, o); |
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436 | o = oper_new("putchar"); |
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2882 | svoboda | 437 | proto_add_oper(p, CONSOLE_PUTCHAR, o); |
2883 | svoboda | 438 | o = oper_new("clear"); |
439 | proto_add_oper(p, CONSOLE_CLEAR, o); |
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440 | o = oper_new("goto"); |
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441 | proto_add_oper(p, CONSOLE_GOTO, o); |
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442 | o = oper_new("getsize"); |
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443 | proto_add_oper(p, CONSOLE_GETSIZE, o); |
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444 | o = oper_new("flush"); |
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445 | proto_add_oper(p, CONSOLE_FLUSH, o); |
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446 | o = oper_new("set_style"); |
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447 | proto_add_oper(p, CONSOLE_SET_STYLE, o); |
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448 | o = oper_new("flush"); |
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449 | proto_add_oper(p, CONSOLE_CURSOR_VISIBILITY, o); |
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450 | o = oper_new("cursor_visibility"); |
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451 | proto_add_oper(p, CONSOLE_FLUSH, o); |
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2882 | svoboda | 452 | |
453 | proto_console = p; |
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454 | proto_register(SERVICE_CONSOLE, p); |
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2878 | svoboda | 455 | } |
456 | |||
457 | int main(void) |
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458 | { |
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459 | main_init(); |
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460 | |||
2835 | svoboda | 461 | while (1) { |
462 | trace_active_task(); |
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463 | } |
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2832 | svoboda | 464 | } |
465 | |||
466 | /** @} |
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467 | */ |