OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 10 matching lines...) Expand all Loading... |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_PLATFORM_POSIX_H_ | 28 #ifndef V8_PLATFORM_POSIX_H_ |
29 #define V8_PLATFORM_POSIX_H_ | 29 #define V8_PLATFORM_POSIX_H_ |
30 | 30 |
| 31 #include <cxxabi.h> |
| 32 #include <stdio.h> |
| 33 |
| 34 #include "platform.h" |
| 35 |
31 namespace v8 { | 36 namespace v8 { |
32 namespace internal { | 37 namespace internal { |
33 | 38 |
34 // Used by platform implementation files during OS::PostSetUp(). | 39 // Used by platform implementation files during OS::PostSetUp(). |
35 void POSIXPostSetUp(); | 40 void POSIXPostSetUp(); |
36 | 41 |
| 42 // Used by platform implementation files during OS::DumpBacktrace() |
| 43 // and OS::StackWalk(). |
| 44 template<int (*backtrace)(void**, int), |
| 45 char** (*backtrace_symbols)(void* const*, int)> |
| 46 struct POSIXBacktraceHelper { |
| 47 static void DumpBacktrace() { |
| 48 void* trace[100]; |
| 49 int size = backtrace(trace, ARRAY_SIZE(trace)); |
| 50 char** symbols = backtrace_symbols(trace, size); |
| 51 fprintf(stderr, "\n==== C stack trace ===============================\n\n"); |
| 52 if (size == 0) { |
| 53 fprintf(stderr, "(empty)\n"); |
| 54 } else if (symbols == NULL) { |
| 55 fprintf(stderr, "(no symbols)\n"); |
| 56 } else { |
| 57 for (int i = 1; i < size; ++i) { |
| 58 fprintf(stderr, "%2d: ", i); |
| 59 char mangled[201]; |
| 60 if (sscanf(symbols[i], "%*[^(]%*[(]%200[^)+]", mangled) == 1) {// NOLINT |
| 61 int status; |
| 62 size_t length; |
| 63 char* demangled = abi::__cxa_demangle( |
| 64 mangled, NULL, &length, &status); |
| 65 fprintf(stderr, "%s\n", demangled != NULL ? demangled : mangled); |
| 66 free(demangled); |
| 67 } else { |
| 68 fprintf(stderr, "??\n"); |
| 69 } |
| 70 } |
| 71 } |
| 72 fflush(stderr); |
| 73 free(symbols); |
| 74 } |
| 75 |
| 76 static int StackWalk(Vector<OS::StackFrame> frames) { |
| 77 int frames_size = frames.length(); |
| 78 ScopedVector<void*> addresses(frames_size); |
| 79 |
| 80 int frames_count = backtrace(addresses.start(), frames_size); |
| 81 |
| 82 char** symbols = backtrace_symbols(addresses.start(), frames_count); |
| 83 if (symbols == NULL) { |
| 84 return OS::kStackWalkError; |
| 85 } |
| 86 |
| 87 for (int i = 0; i < frames_count; i++) { |
| 88 frames[i].address = addresses[i]; |
| 89 // Format a text representation of the frame based on the information |
| 90 // available. |
| 91 OS::SNPrintF(MutableCStrVector(frames[i].text, OS::kStackWalkMaxTextLen), |
| 92 "%s", symbols[i]); |
| 93 // Make sure line termination is in place. |
| 94 frames[i].text[OS::kStackWalkMaxTextLen - 1] = '\0'; |
| 95 } |
| 96 |
| 97 free(symbols); |
| 98 |
| 99 return frames_count; |
| 100 } |
| 101 }; |
| 102 |
37 } } // namespace v8::internal | 103 } } // namespace v8::internal |
38 | 104 |
39 #endif // V8_PLATFORM_POSIX_H_ | 105 #endif // V8_PLATFORM_POSIX_H_ |
OLD | NEW |