diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc')
-rw-r--r-- | toolkit/crashreporter/google-breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc b/toolkit/crashreporter/google-breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc deleted file mode 100644 index 622f05069..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/linux/minidump_writer/linux_core_dumper.cc +++ /dev/null @@ -1,258 +0,0 @@ -// Copyright (c) 2012, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// linux_core_dumper.cc: Implement google_breakpad::LinuxCoreDumper. -// See linux_core_dumper.h for details. - -#include "client/linux/minidump_writer/linux_core_dumper.h" - -#include <asm/ptrace.h> -#include <assert.h> -#include <elf.h> -#include <stdio.h> -#include <string.h> -#include <sys/procfs.h> -#if defined(__mips__) && defined(__ANDROID__) -// To get register definitions. -#include <asm/reg.h> -#endif - -#include "common/linux/linux_libc_support.h" - -namespace google_breakpad { - -LinuxCoreDumper::LinuxCoreDumper(pid_t pid, - const char* core_path, - const char* procfs_path, - const char* root_prefix) - : LinuxDumper(pid, root_prefix), - core_path_(core_path), - procfs_path_(procfs_path), - thread_infos_(&allocator_, 8) { - assert(core_path_); -} - -bool LinuxCoreDumper::BuildProcPath(char* path, pid_t pid, - const char* node) const { - if (!path || !node) - return false; - - size_t node_len = my_strlen(node); - if (node_len == 0) - return false; - - size_t procfs_path_len = my_strlen(procfs_path_); - size_t total_length = procfs_path_len + 1 + node_len; - if (total_length >= NAME_MAX) - return false; - - memcpy(path, procfs_path_, procfs_path_len); - path[procfs_path_len] = '/'; - memcpy(path + procfs_path_len + 1, node, node_len); - path[total_length] = '\0'; - return true; -} - -bool LinuxCoreDumper::CopyFromProcess(void* dest, pid_t child, - const void* src, size_t length) { - ElfCoreDump::Addr virtual_address = reinterpret_cast<ElfCoreDump::Addr>(src); - // TODO(benchan): Investigate whether the data to be copied could span - // across multiple segments in the core dump file. ElfCoreDump::CopyData - // and this method do not handle that case yet. - if (!core_.CopyData(dest, virtual_address, length)) { - // If the data segment is not found in the core dump, fill the result - // with marker characters. - memset(dest, 0xab, length); - return false; - } - return true; -} - -bool LinuxCoreDumper::GetThreadInfoByIndex(size_t index, ThreadInfo* info) { - if (index >= thread_infos_.size()) - return false; - - *info = thread_infos_[index]; - const uint8_t* stack_pointer; -#if defined(__i386) - memcpy(&stack_pointer, &info->regs.esp, sizeof(info->regs.esp)); -#elif defined(__x86_64) - memcpy(&stack_pointer, &info->regs.rsp, sizeof(info->regs.rsp)); -#elif defined(__ARM_EABI__) - memcpy(&stack_pointer, &info->regs.ARM_sp, sizeof(info->regs.ARM_sp)); -#elif defined(__aarch64__) - memcpy(&stack_pointer, &info->regs.sp, sizeof(info->regs.sp)); -#elif defined(__mips__) - stack_pointer = - reinterpret_cast<uint8_t*>(info->mcontext.gregs[MD_CONTEXT_MIPS_REG_SP]); -#else -#error "This code hasn't been ported to your platform yet." -#endif - info->stack_pointer = reinterpret_cast<uintptr_t>(stack_pointer); - return true; -} - -bool LinuxCoreDumper::IsPostMortem() const { - return true; -} - -bool LinuxCoreDumper::ThreadsSuspend() { - return true; -} - -bool LinuxCoreDumper::ThreadsResume() { - return true; -} - -bool LinuxCoreDumper::EnumerateThreads() { - if (!mapped_core_file_.Map(core_path_, 0)) { - fprintf(stderr, "Could not map core dump file into memory\n"); - return false; - } - - core_.SetContent(mapped_core_file_.content()); - if (!core_.IsValid()) { - fprintf(stderr, "Invalid core dump file\n"); - return false; - } - - ElfCoreDump::Note note = core_.GetFirstNote(); - if (!note.IsValid()) { - fprintf(stderr, "PT_NOTE section not found\n"); - return false; - } - - bool first_thread = true; - do { - ElfCoreDump::Word type = note.GetType(); - MemoryRange name = note.GetName(); - MemoryRange description = note.GetDescription(); - - if (type == 0 || name.IsEmpty() || description.IsEmpty()) { - fprintf(stderr, "Could not found a valid PT_NOTE.\n"); - return false; - } - - // Based on write_note_info() in linux/kernel/fs/binfmt_elf.c, notes are - // ordered as follows (NT_PRXFPREG and NT_386_TLS are i386 specific): - // Thread Name Type - // ------------------------------------------------------------------- - // 1st thread CORE NT_PRSTATUS - // process-wide CORE NT_PRPSINFO - // process-wide CORE NT_AUXV - // 1st thread CORE NT_FPREGSET - // 1st thread LINUX NT_PRXFPREG - // 1st thread LINUX NT_386_TLS - // - // 2nd thread CORE NT_PRSTATUS - // 2nd thread CORE NT_FPREGSET - // 2nd thread LINUX NT_PRXFPREG - // 2nd thread LINUX NT_386_TLS - // - // 3rd thread CORE NT_PRSTATUS - // 3rd thread CORE NT_FPREGSET - // 3rd thread LINUX NT_PRXFPREG - // 3rd thread LINUX NT_386_TLS - // - // The following code only works if notes are ordered as expected. - switch (type) { - case NT_PRSTATUS: { - if (description.length() != sizeof(elf_prstatus)) { - fprintf(stderr, "Found NT_PRSTATUS descriptor of unexpected size\n"); - return false; - } - - const elf_prstatus* status = - reinterpret_cast<const elf_prstatus*>(description.data()); - pid_t pid = status->pr_pid; - ThreadInfo info; - memset(&info, 0, sizeof(ThreadInfo)); - info.tgid = status->pr_pgrp; - info.ppid = status->pr_ppid; -#if defined(__mips__) -#if defined(__ANDROID__) - for (int i = EF_R0; i <= EF_R31; i++) - info.mcontext.gregs[i - EF_R0] = status->pr_reg[i]; -#else // __ANDROID__ - for (int i = EF_REG0; i <= EF_REG31; i++) - info.mcontext.gregs[i - EF_REG0] = status->pr_reg[i]; -#endif // __ANDROID__ - info.mcontext.mdlo = status->pr_reg[EF_LO]; - info.mcontext.mdhi = status->pr_reg[EF_HI]; - info.mcontext.pc = status->pr_reg[EF_CP0_EPC]; -#else // __mips__ - memcpy(&info.regs, status->pr_reg, sizeof(info.regs)); -#endif // __mips__ - if (first_thread) { - crash_thread_ = pid; - crash_signal_ = status->pr_info.si_signo; - } - first_thread = false; - threads_.push_back(pid); - thread_infos_.push_back(info); - break; - } -#if defined(__i386) || defined(__x86_64) - case NT_FPREGSET: { - if (thread_infos_.empty()) - return false; - - ThreadInfo* info = &thread_infos_.back(); - if (description.length() != sizeof(info->fpregs)) { - fprintf(stderr, "Found NT_FPREGSET descriptor of unexpected size\n"); - return false; - } - - memcpy(&info->fpregs, description.data(), sizeof(info->fpregs)); - break; - } -#endif -#if defined(__i386) - case NT_PRXFPREG: { - if (thread_infos_.empty()) - return false; - - ThreadInfo* info = &thread_infos_.back(); - if (description.length() != sizeof(info->fpxregs)) { - fprintf(stderr, "Found NT_PRXFPREG descriptor of unexpected size\n"); - return false; - } - - memcpy(&info->fpxregs, description.data(), sizeof(info->fpxregs)); - break; - } -#endif - } - note = note.GetNextNote(); - } while (note.IsValid()); - - return true; -} - -} // namespace google_breakpad |