The Tor Browser / file comparison
comparison: toolkit/crashreporter/test/nsTestCrasher.cpp
toolkit/crashreporter/test/nsTestCrasher.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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deleted
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| -1:000000000000 | 0:c389e1bdb72c |
|---|---|
| 1 #include "mozilla/Assertions.h" | |
| 2 | |
| 3 #include <stdio.h> | |
| 4 | |
| 5 #include "nscore.h" | |
| 6 #include "nsXULAppAPI.h" | |
| 7 #include "nsExceptionHandler.h" | |
| 8 #include "mozilla/unused.h" | |
| 9 | |
| 10 /* | |
| 11 * This pure virtual call example is from MSDN | |
| 12 */ | |
| 13 class A; | |
| 14 | |
| 15 void fcn( A* ); | |
| 16 | |
| 17 class A | |
| 18 { | |
| 19 public: | |
| 20 virtual void f() = 0; | |
| 21 A() { fcn( this ); } | |
| 22 }; | |
| 23 | |
| 24 class B : A | |
| 25 { | |
| 26 void f() { } | |
| 27 public: | |
| 28 void use() { } | |
| 29 }; | |
| 30 | |
| 31 void fcn( A* p ) | |
| 32 { | |
| 33 p->f(); | |
| 34 } | |
| 35 | |
| 36 void PureVirtualCall() | |
| 37 { | |
| 38 // generates a pure virtual function call | |
| 39 B b; | |
| 40 b.use(); // make sure b's actually used | |
| 41 } | |
| 42 | |
| 43 // Keep these in sync with CrashTestUtils.jsm! | |
| 44 const int16_t CRASH_INVALID_POINTER_DEREF = 0; | |
| 45 const int16_t CRASH_PURE_VIRTUAL_CALL = 1; | |
| 46 const int16_t CRASH_RUNTIMEABORT = 2; | |
| 47 const int16_t CRASH_OOM = 3; | |
| 48 const int16_t CRASH_MOZ_CRASH = 4; | |
| 49 const int16_t CRASH_ABORT = 5; | |
| 50 | |
| 51 extern "C" NS_EXPORT | |
| 52 void Crash(int16_t how) | |
| 53 { | |
| 54 switch (how) { | |
| 55 case CRASH_INVALID_POINTER_DEREF: { | |
| 56 volatile int* foo = (int*)0x42; | |
| 57 *foo = 0; | |
| 58 // not reached | |
| 59 break; | |
| 60 } | |
| 61 case CRASH_PURE_VIRTUAL_CALL: { | |
| 62 PureVirtualCall(); | |
| 63 // not reached | |
| 64 break; | |
| 65 } | |
| 66 case CRASH_RUNTIMEABORT: { | |
| 67 NS_RUNTIMEABORT("Intentional crash"); | |
| 68 break; | |
| 69 } | |
| 70 case CRASH_OOM: { | |
| 71 mozilla::unused << moz_xmalloc((size_t) -1); | |
| 72 mozilla::unused << moz_xmalloc((size_t) -1); | |
| 73 mozilla::unused << moz_xmalloc((size_t) -1); | |
| 74 break; | |
| 75 } | |
| 76 case CRASH_MOZ_CRASH: { | |
| 77 MOZ_CRASH(); | |
| 78 break; | |
| 79 } | |
| 80 case CRASH_ABORT: { | |
| 81 abort(); | |
| 82 break; | |
| 83 } | |
| 84 default: | |
| 85 break; | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 extern "C" NS_EXPORT | |
| 90 nsISupports* LockDir(nsIFile *directory) | |
| 91 { | |
| 92 nsISupports* lockfile = nullptr; | |
| 93 XRE_LockProfileDirectory(directory, &lockfile); | |
| 94 return lockfile; | |
| 95 } | |
| 96 | |
| 97 char testData[32]; | |
| 98 | |
| 99 extern "C" NS_EXPORT | |
| 100 uint64_t SaveAppMemory() | |
| 101 { | |
| 102 for (size_t i=0; i<sizeof(testData); i++) | |
| 103 testData[i] = i; | |
| 104 | |
| 105 FILE *fp = fopen("crash-addr", "w"); | |
| 106 if (!fp) | |
| 107 return 0; | |
| 108 fprintf(fp, "%p\n", (void *)testData); | |
| 109 fclose(fp); | |
| 110 | |
| 111 return (int64_t)testData; | |
| 112 } | |
| 113 | |
| 114 #ifdef XP_WIN32 | |
| 115 static LONG WINAPI HandleException(EXCEPTION_POINTERS* exinfo) | |
| 116 { | |
| 117 TerminateProcess(GetCurrentProcess(), 0); | |
| 118 return 0; | |
| 119 } | |
| 120 | |
| 121 extern "C" NS_EXPORT | |
| 122 void TryOverrideExceptionHandler() | |
| 123 { | |
| 124 SetUnhandledExceptionFilter(HandleException); | |
| 125 } | |
| 126 #endif |
