1 /* 2 * Copyright 2006, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "DEBUG" 18 19 #include <errno.h> 20 #include <stdint.h> 21 #include <string.h> 22 #include <sys/ptrace.h> 23 24 #include <backtrace/Backtrace.h> 25 #include <log/log.h> 26 27 #include "machine.h" 28 #include "utility.h" 29 30 void dump_memory_and_code(log_t* log, Backtrace* backtrace) { 31 struct pt_regs r; 32 if (ptrace(PTRACE_GETREGS, backtrace->Tid(), 0, &r) == -1) { 33 ALOGE("cannot get registers: %s\n", strerror(errno)); 34 return; 35 } 36 37 dump_memory(log, backtrace, static_cast<uintptr_t>(r.eax), "memory near eax:"); 38 dump_memory(log, backtrace, static_cast<uintptr_t>(r.ebx), "memory near ebx:"); 39 dump_memory(log, backtrace, static_cast<uintptr_t>(r.ecx), "memory near ecx:"); 40 dump_memory(log, backtrace, static_cast<uintptr_t>(r.edx), "memory near edx:"); 41 dump_memory(log, backtrace, static_cast<uintptr_t>(r.esi), "memory near esi:"); 42 dump_memory(log, backtrace, static_cast<uintptr_t>(r.edi), "memory near edi:"); 43 44 dump_memory(log, backtrace, static_cast<uintptr_t>(r.eip), "code around eip:"); 45 } 46 47 void dump_registers(log_t* log, pid_t tid) { 48 struct pt_regs r; 49 if (ptrace(PTRACE_GETREGS, tid, 0, &r) == -1) { 50 ALOGE("cannot get registers: %s\n", strerror(errno)); 51 return; 52 } 53 54 _LOG(log, logtype::REGISTERS, " eax %08lx ebx %08lx ecx %08lx edx %08lx\n", 55 r.eax, r.ebx, r.ecx, r.edx); 56 _LOG(log, logtype::REGISTERS, " esi %08lx edi %08lx\n", 57 r.esi, r.edi); 58 _LOG(log, logtype::REGISTERS, " xcs %08x xds %08x xes %08x xfs %08x xss %08x\n", 59 r.xcs, r.xds, r.xes, r.xfs, r.xss); 60 _LOG(log, logtype::REGISTERS, " eip %08lx ebp %08lx esp %08lx flags %08lx\n", 61 r.eip, r.ebp, r.esp, r.eflags); 62 } 63
