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/*
** Copyright 2013, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#define LOG_TAG "DEBUG"
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <sys/ptrace.h>
#include <sys/user.h>
#include <backtrace/Backtrace.h>
#include <log/log.h>
#include "machine.h"
#include "utility.h"
void dump_memory_and_code(log_t* log, Backtrace* backtrace) {
struct user_regs_struct r;
if (ptrace(PTRACE_GETREGS, backtrace->Tid(), 0, &r) == -1) {
ALOGE("cannot get registers: %s\n", strerror(errno));
return;
}
dump_memory(log, backtrace, static_cast<uintptr_t>(r.rax), "memory near rax:");
dump_memory(log, backtrace, static_cast<uintptr_t>(r.rbx), "memory near rbx:");
dump_memory(log, backtrace, static_cast<uintptr_t>(r.rcx), "memory near rcx:");
dump_memory(log, backtrace, static_cast<uintptr_t>(r.rdx), "memory near rdx:");
dump_memory(log, backtrace, static_cast<uintptr_t>(r.rsi), "memory near rsi:");
dump_memory(log, backtrace, static_cast<uintptr_t>(r.rdi), "memory near rdi:");
dump_memory(log, backtrace, static_cast<uintptr_t>(r.rip), "code around rip:");
}
void dump_registers(log_t* log, pid_t tid) {
struct user_regs_struct r;
if (ptrace(PTRACE_GETREGS, tid, 0, &r) == -1) {
ALOGE("cannot get registers: %s\n", strerror(errno));
return;
}
_LOG(log, logtype::REGISTERS, " rax %016lx rbx %016lx rcx %016lx rdx %016lx\n",
r.rax, r.rbx, r.rcx, r.rdx);
_LOG(log, logtype::REGISTERS, " rsi %016lx rdi %016lx\n",
r.rsi, r.rdi);
_LOG(log, logtype::REGISTERS, " r8 %016lx r9 %016lx r10 %016lx r11 %016lx\n",
r.r8, r.r9, r.r10, r.r11);
_LOG(log, logtype::REGISTERS, " r12 %016lx r13 %016lx r14 %016lx r15 %016lx\n",
r.r12, r.r13, r.r14, r.r15);
_LOG(log, logtype::REGISTERS, " cs %016lx ss %016lx\n",
r.cs, r.ss);
_LOG(log, logtype::REGISTERS, " rip %016lx rbp %016lx rsp %016lx eflags %016lx\n",
r.rip, r.rbp, r.rsp, r.eflags);
}
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