Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 1 | /* |
| 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 | */ |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 17 | |
Christopher Ferris | b36b592 | 2015-06-17 18:35:59 -0700 | [diff] [blame] | 18 | #define LOG_TAG "DEBUG" |
| 19 | |
Elliott Hughes | 9e7d218 | 2013-11-26 18:01:29 -0800 | [diff] [blame] | 20 | #include <errno.h> |
Christopher Ferris | e8bc77e | 2015-05-22 14:26:13 -0700 | [diff] [blame] | 21 | #include <stdint.h> |
Jeff Brown | 053b865 | 2012-06-06 16:25:03 -0700 | [diff] [blame] | 22 | #include <string.h> |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 23 | #include <sys/ptrace.h> |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 24 | |
Christopher Ferris | e8bc77e | 2015-05-22 14:26:13 -0700 | [diff] [blame] | 25 | #include <backtrace/Backtrace.h> |
Christopher Ferris | b36b592 | 2015-06-17 18:35:59 -0700 | [diff] [blame] | 26 | #include <log/log.h> |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 27 | |
Christopher Ferris | e8bc77e | 2015-05-22 14:26:13 -0700 | [diff] [blame] | 28 | #include "machine.h" |
| 29 | #include "utility.h" |
| 30 | |
| 31 | void dump_memory_and_code(log_t* log, Backtrace* backtrace) { |
Elliott Hughes | e7f18e1 | 2014-07-09 12:11:42 -0700 | [diff] [blame] | 32 | pt_regs regs; |
Christopher Ferris | e8bc77e | 2015-05-22 14:26:13 -0700 | [diff] [blame] | 33 | if (ptrace(PTRACE_GETREGS, backtrace->Tid(), 0, ®s)) { |
Christopher Ferris | b36b592 | 2015-06-17 18:35:59 -0700 | [diff] [blame] | 34 | ALOGE("cannot get registers: %s\n", strerror(errno)); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 35 | return; |
| 36 | } |
| 37 | |
Christopher Ferris | e8bc77e | 2015-05-22 14:26:13 -0700 | [diff] [blame] | 38 | static const char reg_names[] = "r0r1r2r3r4r5r6r7r8r9slfpipsp"; |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 39 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 40 | for (int reg = 0; reg < 14; reg++) { |
Christopher Ferris | e8bc77e | 2015-05-22 14:26:13 -0700 | [diff] [blame] | 41 | dump_memory(log, backtrace, regs.uregs[reg], "memory near %.2s:", ®_names[reg * 2]); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 42 | } |
Andy McFadden | 136dcc5 | 2011-09-22 16:37:06 -0700 | [diff] [blame] | 43 | |
Christopher Ferris | e8bc77e | 2015-05-22 14:26:13 -0700 | [diff] [blame] | 44 | dump_memory(log, backtrace, static_cast<uintptr_t>(regs.ARM_pc), "code around pc:"); |
Andy McFadden | 136dcc5 | 2011-09-22 16:37:06 -0700 | [diff] [blame] | 45 | |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 46 | if (regs.ARM_pc != regs.ARM_lr) { |
Christopher Ferris | e8bc77e | 2015-05-22 14:26:13 -0700 | [diff] [blame] | 47 | dump_memory(log, backtrace, static_cast<uintptr_t>(regs.ARM_lr), "code around lr:"); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 48 | } |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 49 | } |
| 50 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 51 | void dump_registers(log_t* log, pid_t tid) { |
Elliott Hughes | e7f18e1 | 2014-07-09 12:11:42 -0700 | [diff] [blame] | 52 | pt_regs r; |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 53 | if (ptrace(PTRACE_GETREGS, tid, 0, &r)) { |
Christopher Ferris | b36b592 | 2015-06-17 18:35:59 -0700 | [diff] [blame] | 54 | ALOGE("cannot get registers: %s\n", strerror(errno)); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 55 | return; |
| 56 | } |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 57 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 58 | _LOG(log, logtype::REGISTERS, " r0 %08x r1 %08x r2 %08x r3 %08x\n", |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 59 | static_cast<uint32_t>(r.ARM_r0), static_cast<uint32_t>(r.ARM_r1), |
| 60 | static_cast<uint32_t>(r.ARM_r2), static_cast<uint32_t>(r.ARM_r3)); |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 61 | _LOG(log, logtype::REGISTERS, " r4 %08x r5 %08x r6 %08x r7 %08x\n", |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 62 | static_cast<uint32_t>(r.ARM_r4), static_cast<uint32_t>(r.ARM_r5), |
| 63 | static_cast<uint32_t>(r.ARM_r6), static_cast<uint32_t>(r.ARM_r7)); |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 64 | _LOG(log, logtype::REGISTERS, " r8 %08x r9 %08x sl %08x fp %08x\n", |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 65 | static_cast<uint32_t>(r.ARM_r8), static_cast<uint32_t>(r.ARM_r9), |
| 66 | static_cast<uint32_t>(r.ARM_r10), static_cast<uint32_t>(r.ARM_fp)); |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 67 | _LOG(log, logtype::REGISTERS, " ip %08x sp %08x lr %08x pc %08x cpsr %08x\n", |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 68 | static_cast<uint32_t>(r.ARM_ip), static_cast<uint32_t>(r.ARM_sp), |
| 69 | static_cast<uint32_t>(r.ARM_lr), static_cast<uint32_t>(r.ARM_pc), |
| 70 | static_cast<uint32_t>(r.ARM_cpsr)); |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 71 | |
Elliott Hughes | e7f18e1 | 2014-07-09 12:11:42 -0700 | [diff] [blame] | 72 | user_vfp vfp_regs; |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 73 | if (ptrace(PTRACE_GETVFPREGS, tid, 0, &vfp_regs)) { |
Christopher Ferris | b36b592 | 2015-06-17 18:35:59 -0700 | [diff] [blame] | 74 | ALOGE("cannot get FP registers: %s\n", strerror(errno)); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 75 | return; |
| 76 | } |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 77 | |
Elliott Hughes | e7f18e1 | 2014-07-09 12:11:42 -0700 | [diff] [blame] | 78 | for (size_t i = 0; i < 32; i += 2) { |
Elliott Hughes | b40c503 | 2014-07-14 16:10:15 -0700 | [diff] [blame] | 79 | _LOG(log, logtype::FP_REGISTERS, " d%-2d %016llx d%-2d %016llx\n", |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 80 | i, vfp_regs.fpregs[i], i+1, vfp_regs.fpregs[i+1]); |
| 81 | } |
Elliott Hughes | b40c503 | 2014-07-14 16:10:15 -0700 | [diff] [blame] | 82 | _LOG(log, logtype::FP_REGISTERS, " scr %08lx\n", vfp_regs.fpscr); |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 83 | } |