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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 <stddef.h>
19 #include <stdbool.h>
20 #include <stdlib.h>
21 #include <string.h>
22 #include <stdio.h>
23 #include <errno.h>
24 #include <sys/types.h>
25 #include <sys/ptrace.h>
26 
27 #include <corkscrew/ptrace.h>
28 
29 #include <linux/user.h>
30 
31 #include "../utility.h"
32 #include "../machine.h"
33 
dump_memory_and_code(const ptrace_context_t * context __attribute ((unused)),log_t * log,pid_t tid,bool at_fault)34 void dump_memory_and_code(const ptrace_context_t* context __attribute((unused)),
35         log_t* log, pid_t tid, bool at_fault) {
36 }
37 
dump_registers(const ptrace_context_t * context __attribute ((unused)),log_t * log,pid_t tid,bool at_fault)38 void dump_registers(const ptrace_context_t* context __attribute((unused)),
39         log_t* log, pid_t tid, bool at_fault) {
40     struct pt_regs_x86 r;
41     int scopeFlags = (at_fault ? SCOPE_AT_FAULT : 0);
42 
43     if(ptrace(PTRACE_GETREGS, tid, 0, &r)) {
44         _LOG(log, scopeFlags, "cannot get registers: %s\n", strerror(errno));
45         return;
46     }
47     //if there is no stack, no print just like arm
48     if(!r.ebp)
49         return;
50     _LOG(log, scopeFlags, "    eax %08x  ebx %08x  ecx %08x  edx %08x\n",
51          r.eax, r.ebx, r.ecx, r.edx);
52     _LOG(log, scopeFlags, "    esi %08x  edi %08x\n",
53          r.esi, r.edi);
54     _LOG(log, scopeFlags, "    xcs %08x  xds %08x  xes %08x  xfs %08x  xss %08x\n",
55          r.xcs, r.xds, r.xes, r.xfs, r.xss);
56     _LOG(log, scopeFlags, "    eip %08x  ebp %08x  esp %08x  flags %08x\n",
57          r.eip, r.ebp, r.esp, r.eflags);
58 }
59