| 67,6 → 67,9 |
|---|
| thash_t thash; |
| volatile int paused; |
| |
| breakpoint_t brk_list[MAX_BRKPTS]; |
| int lifted_brkpt; |
| |
| void read_line(char *buffer, int n) |
| { |
| char c; |
| 216,6 → 219,8 |
|---|
| thread_debug_start(hash); |
| } |
| |
| static unsigned buffer[1024]; |
| |
| void debug_loop(void *thread_hash_arg) |
| { |
| int rc; |
| 265,10 → 270,45 |
|---|
| break; |
| case UDEBUG_EVENT_BREAKPOINT: |
| printf("breakpoint reached\n"); |
| usleep(2000*2000); |
| rc = udebug_regs_read(app_phone, thread_hash, buffer); |
| printf("udebug_regs_read -> %d\n", rc); |
| int eip_idx = 12; |
| int efl_idx = 14; |
| printf("EIP was 0x%08x\n", buffer[eip_idx]); |
| int brk_addr = buffer[eip_idx] - 1; |
| int bi; |
| for (bi = 0; bi < MAX_BRKPTS; bi++) |
| if (brk_list[bi].set && brk_list[bi].addr == brk_addr) |
| break; |
| if (bi < MAX_BRKPTS) { |
| buffer[eip_idx] = brk_addr; |
| buffer[efl_idx] |= 0x0100; /* trap flag */ |
| printf("setting EIP to 0x%08x\n", buffer[eip_idx]); |
| rc = udebug_regs_write(app_phone, thread_hash, buffer); |
| rc = udebug_mem_write(app_phone, &brk_list[bi].back, brk_addr, 1); |
| printf("udebug_mem_write(phone, 0x%x, 0x%02x, 1) -> %d\n", brk_addr, brk_list[bi].back, rc); |
| lifted_brkpt = bi; |
| } else { |
| printf("unrecognized breakpoint at 0x%x\n", brk_addr); |
| } |
| break; |
| case UDEBUG_EVENT_TRAP: |
| printf("trap event\n"); |
| unsigned char brkinstr[1]; |
| breakpoint_t *lb = &brk_list[lifted_brkpt]; |
| brkinstr[0] = 0xcc; |
| rc = udebug_mem_write(app_phone, brkinstr, lb->addr, 1); |
| printf("restore breakpoint -> %d\n", rc); |
| |
| rc = udebug_regs_read(app_phone, thread_hash, buffer); |
| printf("udebug_regs_read -> %d\n", rc); |
| int efl_idx2 = 14; |
| buffer[efl_idx2] &= ~0x0100; /* trap flag */ |
| rc = udebug_regs_write(app_phone, thread_hash, buffer); |
| break; |
| default: |
| printf("unknown event type %d\n", ev_type); |
| usleep(1000*1000); |
| break; |
| } |
| } |