Rev 2835 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 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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| 11 | #include <udebug.h> |
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| 12 | |||
| 13 | #include "syscalls.h" |
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| 14 | #include "errors.h" |
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| 15 | #include "debug_api.h" |
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| 16 | |||
| 17 | #define TIDBUF_SIZE 64 |
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| 18 | unsigned threadid_buf[TIDBUF_SIZE]; |
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| 19 | |||
| 20 | int phoneid; |
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| 21 | |||
| 22 | int task_connect(int taskid) |
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| 23 | { |
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| 24 | int rc; |
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| 25 | |||
| 26 | printf("ipc_connect_task(%d)...\n", taskid); |
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| 27 | rc = ipc_connect_kbox(taskid); |
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| 28 | printf("-> %d\n", rc); |
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| 29 | phoneid = rc; |
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| 30 | if (rc < 0) return rc; |
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| 31 | |||
| 32 | printf("debug_begin()\n"); |
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| 33 | rc = debug_begin(phoneid); |
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| 34 | printf("-> %d\n", rc); |
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| 35 | if (rc < 0) return rc; |
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| 36 | |||
| 37 | return 0; |
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| 38 | } |
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| 39 | |||
| 40 | int get_thread_list(void) |
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| 41 | { |
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| 42 | int rc; |
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| 43 | int tb_copied; |
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| 44 | int tb_needed; |
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| 45 | int i; |
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| 46 | |||
| 47 | |||
| 48 | printf("send IPC_M_DEBUG_THREAD_READ message\n"); |
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| 49 | rc = debug_thread_read(phoneid, (unsigned)threadid_buf, |
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| 50 | TIDBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed); |
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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 | printf("thread IDs:"); |
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| 55 | for (i=0; i<tb_copied / sizeof(unsigned); i++) { |
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| 56 | printf(" %u", threadid_buf[i]); |
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| 57 | } |
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| 58 | printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned)); |
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| 59 | |||
| 60 | return 0; |
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| 61 | } |
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| 62 | |||
| 63 | void print_sc_retval(int retval, rv_type_t rv_type) |
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| 64 | { |
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| 65 | printf (" -> "); |
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| 66 | if (rv_type == RV_INTEGER) { |
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| 67 | printf("%d", retval); |
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| 68 | } else if (rv_type == RV_HASH) { |
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| 69 | printf("0x%08x", retval); |
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| 70 | } else if (rv_type == RV_ERRNO) { |
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| 71 | if (retval >= -15 && retval <= 0) { |
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| 72 | printf("%d %s (%s)", retval, |
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| 73 | err_desc[retval].name, |
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| 74 | err_desc[retval].desc); |
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| 75 | } else { |
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| 76 | printf("%d", retval); |
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| 77 | } |
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| 78 | } else if (rv_type == RV_INT_ERRNO) { |
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| 79 | if (retval >= -15 && retval < 0) { |
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| 80 | printf("%d %s (%s)", retval, |
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| 81 | err_desc[retval].name, |
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| 82 | err_desc[retval].desc); |
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| 83 | } else { |
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| 84 | printf("%d", retval); |
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| 85 | } |
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| 86 | } |
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| 87 | putchar('\n'); |
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| 88 | } |
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| 89 | |||
| 90 | void print_sc_args(unsigned *sc_args, int n) |
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| 91 | { |
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| 92 | int i; |
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| 93 | |||
| 94 | putchar('('); |
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| 95 | if (n > 0) printf("%d", sc_args[0]); |
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| 96 | for (i=1; i<n; i++) { |
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| 97 | printf(", %d", sc_args[i]); |
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| 98 | } |
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| 99 | putchar(')'); |
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| 100 | } |
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| 101 | |||
| 102 | void sc_ipc_call_async_slow(unsigned *sc_args) |
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| 103 | { |
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| 104 | unsigned ipc_args[6]; |
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| 105 | int rc; |
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| 106 | |||
| 107 | memset(ipc_args, 0, sizeof(ipc_args)); |
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| 108 | rc = debug_mem_read(phoneid, ipc_args, sc_args[1], sizeof(ipc_args)); |
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| 109 | |||
| 110 | if (rc >= 0) { |
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| 111 | printf("args: (%u, %u, %u, %u, %u, %u)\n", |
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| 112 | ipc_args[0], ipc_args[1], ipc_args[2], |
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| 113 | ipc_args[3], ipc_args[4], ipc_args[5]); |
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| 114 | } |
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| 115 | } |
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| 116 | |||
| 117 | void trace_loop(void) |
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| 118 | { |
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| 119 | int rc; |
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| 120 | unsigned sc_args[6]; |
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| 121 | unsigned copied; |
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| 122 | unsigned ev_type; |
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| 123 | unsigned sc_id; |
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| 124 | int sc_rc; |
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| 125 | int rv_type; |
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| 126 | |||
| 127 | while (1) { |
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| 128 | /* Run thread until a syscall is executed */ |
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| 129 | rc = debug_go(phoneid, threadid_buf[0], |
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| 130 | &ev_type, &sc_id, &sc_rc); |
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| 131 | |||
| 132 | /* Read syscall arguments */ |
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| 133 | if (rc >= 0) { |
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| 134 | rc = debug_args_read(phoneid, threadid_buf[0], |
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| 135 | sc_args); |
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| 136 | } |
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| 137 | |||
| 138 | /* Print syscall name, id and arguments */ |
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| 139 | if (rc >= 0) { |
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| 140 | printf("%s", syscall_desc[sc_id].name); |
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| 141 | print_sc_args(sc_args, syscall_desc[sc_id].n_args); |
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| 142 | rv_type = syscall_desc[sc_id].rv_type; |
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| 143 | print_sc_retval(sc_rc, rv_type); |
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| 144 | } |
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| 145 | |||
| 146 | switch (sc_id) { |
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| 147 | case SYS_IPC_CALL_ASYNC_SLOW: |
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| 148 | sc_ipc_call_async_slow(sc_args); |
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| 149 | break; |
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| 150 | default: |
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| 151 | break; |
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| 152 | } |
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| 153 | } |
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| 154 | } |
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| 155 | |||
| 156 | |||
| 157 | void trace_active_task(void) |
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| 158 | { |
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| 159 | int taskid; |
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| 160 | int i; |
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| 161 | int rc; |
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| 162 | |||
| 163 | printf("Syscall Tracer\n"); |
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| 164 | printf("Press 'c' to connect\n"); |
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| 165 | while ((i = getchar()) != 'c') |
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| 166 | putchar(i); |
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| 167 | |||
| 168 | taskid = 13; |
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| 169 | rc = task_connect(taskid); |
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| 170 | if (rc < 0) { |
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| 171 | printf("Failed to connect to task %d\n", taskid); |
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| 172 | return; |
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| 173 | } |
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| 174 | |||
| 175 | printf("Connected to task %d\n", taskid); |
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| 176 | |||
| 177 | rc = get_thread_list(); |
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| 178 | if (rc < 0) { |
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| 179 | printf("Failed to get thread list (error %d)\n", rc); |
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| 180 | return; |
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| 181 | } |
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| 182 | |||
| 183 | trace_loop(); |
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| 184 | |||
| 185 | printf("done\n"); |
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| 186 | return; |
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| 187 | } |
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| 188 | |||
| 189 | int main(void) |
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| 190 | { |
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| 191 | trace_active_task(); |
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| 192 | } |
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| 193 | |||
| 194 | /** @} |
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| 195 | */ |