84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
/*
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*
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* Copyright 2006, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "DEBUG"
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#include <errno.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/ptrace.h>
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#include <backtrace/Backtrace.h>
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#include <log/log.h>
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#include "machine.h"
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#include "utility.h"
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void dump_memory_and_code(log_t* log, Backtrace* backtrace) {
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pt_regs regs;
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if (ptrace(PTRACE_GETREGS, backtrace->Tid(), 0, ®s)) {
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ALOGE("cannot get registers: %s\n", strerror(errno));
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return;
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}
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static const char reg_names[] = "r0r1r2r3r4r5r6r7r8r9slfpipsp";
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for (int reg = 0; reg < 14; reg++) {
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dump_memory(log, backtrace, regs.uregs[reg], "memory near %.2s:", ®_names[reg * 2]);
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}
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dump_memory(log, backtrace, static_cast<uintptr_t>(regs.ARM_pc), "code around pc:");
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if (regs.ARM_pc != regs.ARM_lr) {
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dump_memory(log, backtrace, static_cast<uintptr_t>(regs.ARM_lr), "code around lr:");
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}
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}
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void dump_registers(log_t* log, pid_t tid) {
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pt_regs r;
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if (ptrace(PTRACE_GETREGS, tid, 0, &r)) {
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ALOGE("cannot get registers: %s\n", strerror(errno));
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return;
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}
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_LOG(log, logtype::REGISTERS, " r0 %08x r1 %08x r2 %08x r3 %08x\n",
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static_cast<uint32_t>(r.ARM_r0), static_cast<uint32_t>(r.ARM_r1),
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static_cast<uint32_t>(r.ARM_r2), static_cast<uint32_t>(r.ARM_r3));
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_LOG(log, logtype::REGISTERS, " r4 %08x r5 %08x r6 %08x r7 %08x\n",
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static_cast<uint32_t>(r.ARM_r4), static_cast<uint32_t>(r.ARM_r5),
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static_cast<uint32_t>(r.ARM_r6), static_cast<uint32_t>(r.ARM_r7));
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_LOG(log, logtype::REGISTERS, " r8 %08x r9 %08x sl %08x fp %08x\n",
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static_cast<uint32_t>(r.ARM_r8), static_cast<uint32_t>(r.ARM_r9),
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static_cast<uint32_t>(r.ARM_r10), static_cast<uint32_t>(r.ARM_fp));
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_LOG(log, logtype::REGISTERS, " ip %08x sp %08x lr %08x pc %08x cpsr %08x\n",
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static_cast<uint32_t>(r.ARM_ip), static_cast<uint32_t>(r.ARM_sp),
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static_cast<uint32_t>(r.ARM_lr), static_cast<uint32_t>(r.ARM_pc),
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static_cast<uint32_t>(r.ARM_cpsr));
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user_vfp vfp_regs;
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if (ptrace(PTRACE_GETVFPREGS, tid, 0, &vfp_regs)) {
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ALOGE("cannot get FP registers: %s\n", strerror(errno));
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return;
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}
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for (size_t i = 0; i < 32; i += 2) {
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_LOG(log, logtype::FP_REGISTERS, " d%-2d %016llx d%-2d %016llx\n",
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i, vfp_regs.fpregs[i], i+1, vfp_regs.fpregs[i+1]);
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}
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_LOG(log, logtype::FP_REGISTERS, " scr %08lx\n", vfp_regs.fpscr);
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}
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