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_THREAD_INFO_H_ 31 #define CLIENT_LINUX_DUMP_WRITER_COMMON_THREAD_INFO_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 40 namespace google_breakpad { 41 42 #if defined(__i386) || defined(__x86_64) 43 typedef __typeof__(((struct user*) 0)->u_debugreg[0]) debugreg_t; 44 #endif 45 46 // We produce one of these structures for each thread in the crashed process. 47 struct ThreadInfo { 48 pid_t tgid; // thread group id 49 pid_t ppid; // parent process 50 51 uintptr_t stack_pointer; // thread stack pointer 52 53 54 #if defined(__i386) || defined(__x86_64) 55 user_regs_struct regs; 56 user_fpregs_struct fpregs; 57 static const unsigned kNumDebugRegisters = 8; 58 debugreg_t dregs[8]; 59 #if defined(__i386) 60 user_fpxregs_struct fpxregs; 61 #endif // defined(__i386) 62 63 #elif defined(__ARM_EABI__) 64 // Mimicking how strace does this(see syscall.c, search for GETREGS) 65 struct user_regs regs; 66 struct user_fpregs fpregs; 67 #elif defined(__aarch64__) 68 // Use the structures defined in <asm/ptrace.h> 69 struct user_pt_regs regs; 70 struct user_fpsimd_state fpregs; 71 #elif defined(__mips__) 72 user_regs_struct regs; 73 user_fpregs_struct fpregs; 74 uint32_t hi[3]; 75 uint32_t lo[3]; 76 uint32_t dsp_control; 77 #endif 78 79 // Returns the instruction pointer (platform-dependent impl.). 80 uintptr_t GetInstructionPointer() const; 81 82 // Fills a RawContextCPU using the context in the ThreadInfo object. 83 void FillCPUContext(RawContextCPU* out) const; 84 }; 85 86 } // namespace google_breakpad 87 88 #endif // CLIENT_LINUX_DUMP_WRITER_COMMON_THREAD_INFO_H_ 89