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 | |
Elliott Hughes | 9e7d218 | 2013-11-26 18:01:29 -0800 | [diff] [blame] | 18 | #include <errno.h> |
Elliott Hughes | 9e7d218 | 2013-11-26 18:01:29 -0800 | [diff] [blame] | 19 | #include <stddef.h> |
| 20 | #include <stdio.h> |
Jeff Brown | 053b865 | 2012-06-06 16:25:03 -0700 | [diff] [blame] | 21 | #include <stdlib.h> |
| 22 | #include <string.h> |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 23 | #include <sys/ptrace.h> |
Elliott Hughes | 9e7d218 | 2013-11-26 18:01:29 -0800 | [diff] [blame] | 24 | #include <sys/types.h> |
| 25 | #include <sys/user.h> |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 26 | |
Jeff Brown | 13e715b | 2011-10-21 12:14:56 -0700 | [diff] [blame] | 27 | #include "../utility.h" |
| 28 | #include "../machine.h" |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 29 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 30 | void dump_memory_and_code(log_t* log, pid_t tid) { |
Elliott Hughes | e7f18e1 | 2014-07-09 12:11:42 -0700 | [diff] [blame] | 31 | pt_regs regs; |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 32 | if (ptrace(PTRACE_GETREGS, tid, 0, ®s)) { |
| 33 | return; |
| 34 | } |
| 35 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 36 | static const char REG_NAMES[] = "r0r1r2r3r4r5r6r7r8r9slfpipsp"; |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 37 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 38 | for (int reg = 0; reg < 14; reg++) { |
| 39 | // this may not be a valid way to access, but it'll do for now |
| 40 | uintptr_t addr = regs.uregs[reg]; |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 41 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 42 | // Don't bother if it looks like a small int or ~= null, or if |
| 43 | // it's in the kernel area. |
| 44 | if (addr < 4096 || addr >= 0xc0000000) { |
| 45 | continue; |
Andy McFadden | 136dcc5 | 2011-09-22 16:37:06 -0700 | [diff] [blame] | 46 | } |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 47 | |
| 48 | _LOG(log, logtype::MEMORY, "\nmemory near %.2s:\n", ®_NAMES[reg * 2]); |
| 49 | dump_memory(log, tid, addr); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 50 | } |
Andy McFadden | 136dcc5 | 2011-09-22 16:37:06 -0700 | [diff] [blame] | 51 | |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 52 | // explicitly allow upload of code dump logging |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 53 | _LOG(log, logtype::MEMORY, "\ncode around pc:\n"); |
| 54 | dump_memory(log, tid, static_cast<uintptr_t>(regs.ARM_pc)); |
Andy McFadden | 136dcc5 | 2011-09-22 16:37:06 -0700 | [diff] [blame] | 55 | |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 56 | if (regs.ARM_pc != regs.ARM_lr) { |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 57 | _LOG(log, logtype::MEMORY, "\ncode around lr:\n"); |
| 58 | dump_memory(log, tid, static_cast<uintptr_t>(regs.ARM_lr)); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 59 | } |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 60 | } |
| 61 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 62 | void dump_registers(log_t* log, pid_t tid) { |
Elliott Hughes | e7f18e1 | 2014-07-09 12:11:42 -0700 | [diff] [blame] | 63 | pt_regs r; |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 64 | if (ptrace(PTRACE_GETREGS, tid, 0, &r)) { |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 65 | _LOG(log, logtype::REGISTERS, "cannot get registers: %s\n", strerror(errno)); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 66 | return; |
| 67 | } |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 68 | |
Brigid Smith | 62ba489 | 2014-06-10 11:53:08 -0700 | [diff] [blame] | 69 | _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] | 70 | static_cast<uint32_t>(r.ARM_r0), static_cast<uint32_t>(r.ARM_r1), |
| 71 | 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] | 72 | _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] | 73 | static_cast<uint32_t>(r.ARM_r4), static_cast<uint32_t>(r.ARM_r5), |
| 74 | 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] | 75 | _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] | 76 | static_cast<uint32_t>(r.ARM_r8), static_cast<uint32_t>(r.ARM_r9), |
| 77 | 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] | 78 | _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] | 79 | static_cast<uint32_t>(r.ARM_ip), static_cast<uint32_t>(r.ARM_sp), |
| 80 | static_cast<uint32_t>(r.ARM_lr), static_cast<uint32_t>(r.ARM_pc), |
| 81 | static_cast<uint32_t>(r.ARM_cpsr)); |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 82 | |
Elliott Hughes | e7f18e1 | 2014-07-09 12:11:42 -0700 | [diff] [blame] | 83 | user_vfp vfp_regs; |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 84 | if (ptrace(PTRACE_GETVFPREGS, tid, 0, &vfp_regs)) { |
Elliott Hughes | b40c503 | 2014-07-14 16:10:15 -0700 | [diff] [blame^] | 85 | _LOG(log, logtype::FP_REGISTERS, "cannot get FP registers: %s\n", strerror(errno)); |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 86 | return; |
| 87 | } |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 88 | |
Elliott Hughes | e7f18e1 | 2014-07-09 12:11:42 -0700 | [diff] [blame] | 89 | for (size_t i = 0; i < 32; i += 2) { |
Elliott Hughes | b40c503 | 2014-07-14 16:10:15 -0700 | [diff] [blame^] | 90 | _LOG(log, logtype::FP_REGISTERS, " d%-2d %016llx d%-2d %016llx\n", |
Christopher Ferris | 20303f8 | 2014-01-10 16:33:16 -0800 | [diff] [blame] | 91 | i, vfp_regs.fpregs[i], i+1, vfp_regs.fpregs[i+1]); |
| 92 | } |
Elliott Hughes | b40c503 | 2014-07-14 16:10:15 -0700 | [diff] [blame^] | 93 | _LOG(log, logtype::FP_REGISTERS, " scr %08lx\n", vfp_regs.fpscr); |
Bruce Beare | 8492490 | 2010-10-13 14:21:30 -0700 | [diff] [blame] | 94 | } |