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