| 0,0 → 1,195 |
|---|
| /** @addtogroup sctrace |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <syscall.h> |
| #include <ipc/ipc.h> |
| #include <udebug.h> |
| |
| #include "syscalls.h" |
| #include "errors.h" |
| #include "debug_api.h" |
| |
| #define TIDBUF_SIZE 64 |
| unsigned threadid_buf[TIDBUF_SIZE]; |
| |
| int phoneid; |
| |
| int task_connect(int taskid) |
| { |
| int rc; |
| |
| printf("ipc_connect_task(%d)...\n", taskid); |
| rc = ipc_connect_kbox(taskid); |
| printf("-> %d\n", rc); |
| phoneid = rc; |
| if (rc < 0) return rc; |
| |
| printf("debug_begin()\n"); |
| rc = debug_begin(phoneid); |
| printf("-> %d\n", rc); |
| if (rc < 0) return rc; |
| |
| return 0; |
| } |
| |
| int get_thread_list(void) |
| { |
| int rc; |
| int tb_copied; |
| int tb_needed; |
| int i; |
| |
| |
| printf("send IPC_M_DEBUG_THREAD_READ message\n"); |
| rc = debug_thread_read(phoneid, (unsigned)threadid_buf, |
| TIDBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed); |
| printf("-> %d\n", rc); |
| if (rc < 0) return rc; |
| |
| printf("thread IDs:"); |
| for (i=0; i<tb_copied / sizeof(unsigned); i++) { |
| printf(" %u", threadid_buf[i]); |
| } |
| printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned)); |
| |
| return 0; |
| } |
| |
| void print_sc_retval(int retval, rv_type_t rv_type) |
| { |
| printf (" -> "); |
| if (rv_type == RV_INTEGER) { |
| printf("%d", retval); |
| } else if (rv_type == RV_HASH) { |
| printf("0x%08x", retval); |
| } else if (rv_type == RV_ERRNO) { |
| if (retval >= -15 && retval <= 0) { |
| printf("%d %s (%s)", retval, |
| err_desc[retval].name, |
| err_desc[retval].desc); |
| } else { |
| printf("%d", retval); |
| } |
| } else if (rv_type == RV_INT_ERRNO) { |
| if (retval >= -15 && retval < 0) { |
| printf("%d %s (%s)", retval, |
| err_desc[retval].name, |
| err_desc[retval].desc); |
| } else { |
| printf("%d", retval); |
| } |
| } |
| putchar('\n'); |
| } |
| |
| void print_sc_args(unsigned *sc_args, int n) |
| { |
| int i; |
| |
| putchar('('); |
| if (n > 0) printf("%d", sc_args[0]); |
| for (i=1; i<n; i++) { |
| printf(", %d", sc_args[i]); |
| } |
| putchar(')'); |
| } |
| |
| void sc_ipc_call_async_slow(unsigned *sc_args) |
| { |
| unsigned ipc_args[6]; |
| int rc; |
| |
| memset(ipc_args, 0, sizeof(ipc_args)); |
| rc = debug_mem_read(phoneid, ipc_args, sc_args[1], sizeof(ipc_args)); |
| |
| if (rc >= 0) { |
| printf("args: (%u, %u, %u, %u, %u, %u)\n", |
| ipc_args[0], ipc_args[1], ipc_args[2], |
| ipc_args[3], ipc_args[4], ipc_args[5]); |
| } |
| } |
| |
| void trace_loop(void) |
| { |
| int rc; |
| unsigned sc_args[6]; |
| unsigned copied; |
| unsigned ev_type; |
| unsigned sc_id; |
| int sc_rc; |
| int rv_type; |
| |
| while (1) { |
| /* Run thread until a syscall is executed */ |
| rc = debug_go(phoneid, threadid_buf[0], |
| &ev_type, &sc_id, &sc_rc); |
| |
| /* Read syscall arguments */ |
| if (rc >= 0) { |
| rc = debug_args_read(phoneid, threadid_buf[0], |
| sc_args); |
| } |
| |
| /* Print syscall name, id and arguments */ |
| if (rc >= 0) { |
| printf("%s", syscall_desc[sc_id].name); |
| print_sc_args(sc_args, syscall_desc[sc_id].n_args); |
| rv_type = syscall_desc[sc_id].rv_type; |
| print_sc_retval(sc_rc, rv_type); |
| } |
| |
| switch (sc_id) { |
| case SYS_IPC_CALL_ASYNC_SLOW: |
| sc_ipc_call_async_slow(sc_args); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| |
| void trace_active_task(void) |
| { |
| int taskid; |
| int i; |
| int rc; |
| |
| printf("Syscall Tracer\n"); |
| printf("Press 'c' to connect\n"); |
| while ((i = getchar()) != 'c') |
| putchar(i); |
| |
| taskid = 13; |
| rc = task_connect(taskid); |
| if (rc < 0) { |
| printf("Failed to connect to task %d\n", taskid); |
| return; |
| } |
| |
| printf("Connected to task %d\n", taskid); |
| |
| rc = get_thread_list(); |
| if (rc < 0) { |
| printf("Failed to get thread list (error %d)\n", rc); |
| return; |
| } |
| |
| trace_loop(); |
| |
| printf("done\n"); |
| return; |
| } |
| |
| int main(void) |
| { |
| trace_active_task(); |
| } |
| |
| /** @} |
| */ |