1// Copyright (c) 2014, Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above 11// copyright notice, this list of conditions and the following disclaimer 12// in the documentation and/or other materials provided with the 13// distribution. 14// * Neither the name of Google Inc. nor the names of its 15// contributors may be used to endorse or promote products derived from 16// this software without specific prior written permission. 17// 18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30#ifndef CLIENT_LINUX_DUMP_WRITER_COMMON_UCONTEXT_READER_H 31#define CLIENT_LINUX_DUMP_WRITER_COMMON_UCONTEXT_READER_H 32 33#include <sys/ucontext.h> 34#include <sys/user.h> 35 36#include "client/linux/dump_writer_common/raw_context_cpu.h" 37#include "common/memory.h" 38#include "google_breakpad/common/minidump_format.h" 39 40namespace google_breakpad { 41 42// Wraps platform-dependent implementations of accessors to ucontext structs. 43struct UContextReader { 44 static uintptr_t GetStackPointer(const struct ucontext* uc); 45 46 static uintptr_t GetInstructionPointer(const struct ucontext* uc); 47 48 // Juggle a arch-specific ucontext into a minidump format 49 // out: the minidump structure 50 // info: the collection of register structures. 51#if defined(__i386__) || defined(__x86_64) 52 static void FillCPUContext(RawContextCPU *out, const ucontext *uc, 53 const struct _libc_fpstate* fp); 54#elif defined(__aarch64__) 55 static void FillCPUContext(RawContextCPU *out, const ucontext *uc, 56 const struct fpsimd_context* fpregs); 57#else 58 static void FillCPUContext(RawContextCPU *out, const ucontext *uc); 59#endif 60}; 61 62} // namespace google_breakpad 63 64#endif // CLIENT_LINUX_DUMP_WRITER_COMMON_UCONTEXT_READER_H 65