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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 <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 
     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