machine.c revision 6cc492308712613cd23bee9240b1757428841a2f 
1/* system/debuggerd/debuggerd.c
2**
3** Copyright 2006, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#include <stdio.h>
19#include <errno.h>
20#include <signal.h>
21#include <pthread.h>
22#include <fcntl.h>
23#include <sys/types.h>
24#include <dirent.h>
25
26#include <sys/ptrace.h>
27#include <sys/wait.h>
28#include <sys/exec_elf.h>
29#include <sys/stat.h>
30
31#include <cutils/sockets.h>
32#include <cutils/properties.h>
33
34#include <linux/input.h>
35
36#include "../utility.h"
37#include "x86_utility.h"
38
39void dump_registers(int tfd, int pid, bool at_fault)
40{
41    struct pt_regs_x86 r;
42    bool only_in_tombstone = !at_fault;
43
44    if(ptrace(PTRACE_GETREGS, pid, 0, &r)) {
45        _LOG(tfd, only_in_tombstone,
46             "cannot get registers: %s\n", strerror(errno));
47        return;
48    }
49//if there is no stack, no print just like arm
50    if(!r.ebp)
51        return;
52    _LOG(tfd, only_in_tombstone, " eax %08x  ebx %08x  ecx %08x  edx %08x\n",
53         r.eax, r.ebx, r.ecx, r.edx);
54    _LOG(tfd, only_in_tombstone, " esi %08x  edi %08x\n",
55         r.esi, r.edi);
56    _LOG(tfd, only_in_tombstone, " xcs %08x  xds %08x  xes %08x  xfs %08x xss %08x\n",
57         r.xcs, r.xds, r.xes, r.xfs, r.xss);
58    _LOG(tfd, only_in_tombstone,
59         " eip %08x  ebp %08x  esp %08x  flags %08x\n",
60         r.eip, r.ebp, r.esp, r.eflags);
61}
62