1abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT/* 2abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * 3abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * Copyright 2014, The Android Open Source Project 4abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * 5abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * Licensed under the Apache License, Version 2.0 (the "License"); 6abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * you may not use this file except in compliance with the License. 7abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * You may obtain a copy of the License at 8abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * 9abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * http://www.apache.org/licenses/LICENSE-2.0 10abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * 11abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * Unless required by applicable law or agreed to in writing, software 12abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * distributed under the License is distributed on an "AS IS" BASIS, 13abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * See the License for the specific language governing permissions and 15abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT * limitations under the License. 16abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT */ 17abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 18aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes#include <elf.h> 19abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT#include <errno.h> 20aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes#include <inttypes.h> 21aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes#include <string.h> 22abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT#include <sys/types.h> 23abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT#include <sys/ptrace.h> 24abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT#include <sys/user.h> 25abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT#include <sys/uio.h> 26abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 27abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT#include "../utility.h" 28abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT#include "../machine.h" 29abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 3062ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smithvoid dump_memory_and_code(log_t* log, pid_t tid) { 31abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT struct user_pt_regs regs; 32abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT struct iovec io; 33abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT io.iov_base = ®s; 34abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT io.iov_len = sizeof(regs); 35abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 36abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT if (ptrace(PTRACE_GETREGSET, tid, (void*)NT_PRSTATUS, &io) == -1) { 37e17f267b2a54d4b1a2b440a94ce06818ece49c7bBrigid Smith _LOG(log, logtype::ERROR, "%s: ptrace failed to get registers: %s\n", 38abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT __func__, strerror(errno)); 39abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT return; 40abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT } 41abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 4262ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith for (int reg = 0; reg < 31; reg++) { 4362ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith uintptr_t addr = regs.regs[reg]; 44abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 4562ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith /* 4662ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith * Don't bother if it looks like a small int or ~= null, or if 4762ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith * it's in the kernel area. 4862ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith */ 4962ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith if (addr < 4096 || addr >= (1UL<<63)) { 5062ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith continue; 51abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT } 5262ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith 5362ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith _LOG(log, logtype::MEMORY, "\nmemory near x%d:\n", reg); 5462ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith dump_memory(log, tid, addr); 55abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT } 56abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 5762ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith _LOG(log, logtype::MEMORY, "\ncode around pc:\n"); 5862ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith dump_memory(log, tid, (uintptr_t)regs.pc); 59abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 60abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT if (regs.pc != regs.sp) { 6162ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith _LOG(log, logtype::MEMORY, "\ncode around sp:\n"); 6262ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith dump_memory(log, tid, (uintptr_t)regs.sp); 63abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT } 64abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT} 65abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 6662ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smithvoid dump_registers(log_t* log, pid_t tid) { 67abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT struct user_pt_regs r; 68abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT struct iovec io; 69abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT io.iov_base = &r; 70abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT io.iov_len = sizeof(r); 71abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 72abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT if (ptrace(PTRACE_GETREGSET, tid, (void*) NT_PRSTATUS, (void*) &io) == -1) { 73e17f267b2a54d4b1a2b440a94ce06818ece49c7bBrigid Smith _LOG(log, logtype::ERROR, "ptrace error: %s\n", strerror(errno)); 74abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT return; 75abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT } 76abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 77abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT for (int i = 0; i < 28; i += 4) { 7862ba489ba00a2689d4e257bc178cff87495f99d7Brigid Smith _LOG(log, logtype::REGISTERS, 79aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes " x%-2d %016llx x%-2d %016llx x%-2d %016llx x%-2d %016llx\n", 80aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes i, r.regs[i], 81aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes i+1, r.regs[i+1], 82aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes i+2, r.regs[i+2], 83aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes i+3, r.regs[i+3]); 84abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT } 85abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 86aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes _LOG(log, logtype::REGISTERS, " x28 %016llx x29 %016llx x30 %016llx\n", 87aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes r.regs[28], r.regs[29], r.regs[30]); 88abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 89aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes _LOG(log, logtype::REGISTERS, " sp %016llx pc %016llx pstate %016llx\n", 90aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes r.sp, r.pc, r.pstate); 91abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 92abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT struct user_fpsimd_state f; 93abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT io.iov_base = &f; 94abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT io.iov_len = sizeof(f); 95abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 96abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT if (ptrace(PTRACE_GETREGSET, tid, (void*) NT_PRFPREG, (void*) &io) == -1) { 97e17f267b2a54d4b1a2b440a94ce06818ece49c7bBrigid Smith _LOG(log, logtype::ERROR, "ptrace error: %s\n", strerror(errno)); 98abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT return; 99abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT } 100abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT 101aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes for (int i = 0; i < 32; i += 2) { 102aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes _LOG(log, logtype::FP_REGISTERS, 103aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes " v%-2d %016" PRIx64 "%016" PRIx64 " v%-2d %016" PRIx64 "%016" PRIx64 "\n", 104aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes i, 105aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes static_cast<uint64_t>(f.vregs[i] >> 64), 106aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes static_cast<uint64_t>(f.vregs[i]), 107aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes i+1, 108aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes static_cast<uint64_t>(f.vregs[i+1] >> 64), 109aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes static_cast<uint64_t>(f.vregs[i+1])); 110abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT } 111aae5d437556d877f2a198601394ba8ea7a559a70Elliott Hughes _LOG(log, logtype::FP_REGISTERS, " fpsr %08x fpcr %08x\n", f.fpsr, f.fpcr); 112abc60c26b7448e6b2842351688a7a823b8b787d6Kévin PETIT} 113