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
dump_registers(int tfd,int pid,bool at_fault)39 void 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