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_allocator.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 <sys/user.h> |
69 | struct user_regs_struct regs; |
70 | struct user_fpsimd_struct fpregs; |
71 | #elif defined(__mips__) |
72 | // Use the structure defined in <sys/ucontext.h>. |
73 | mcontext_t mcontext; |
74 | #endif |
75 | |
76 | // Returns the instruction pointer (platform-dependent impl.). |
77 | uintptr_t GetInstructionPointer() const; |
78 | |
79 | // Fills a RawContextCPU using the context in the ThreadInfo object. |
80 | void FillCPUContext(RawContextCPU* out) const; |
81 | |
82 | // Returns the pointer and size of general purpose register area. |
83 | void GetGeneralPurposeRegisters(void** gp_regs, size_t* size); |
84 | |
85 | // Returns the pointer and size of float point register area. |
86 | void GetFloatingPointRegisters(void** fp_regs, size_t* size); |
87 | }; |
88 | |
89 | } // namespace google_breakpad |
90 | |
91 | #endif // CLIENT_LINUX_DUMP_WRITER_COMMON_THREAD_INFO_H_ |
92 | |