1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/crashreporter/test/nsTestCrasher.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,126 @@
1.4 +#include "mozilla/Assertions.h"
1.5 +
1.6 +#include <stdio.h>
1.7 +
1.8 +#include "nscore.h"
1.9 +#include "nsXULAppAPI.h"
1.10 +#include "nsExceptionHandler.h"
1.11 +#include "mozilla/unused.h"
1.12 +
1.13 +/*
1.14 + * This pure virtual call example is from MSDN
1.15 + */
1.16 +class A;
1.17 +
1.18 +void fcn( A* );
1.19 +
1.20 +class A
1.21 +{
1.22 +public:
1.23 + virtual void f() = 0;
1.24 + A() { fcn( this ); }
1.25 +};
1.26 +
1.27 +class B : A
1.28 +{
1.29 + void f() { }
1.30 +public:
1.31 + void use() { }
1.32 +};
1.33 +
1.34 +void fcn( A* p )
1.35 +{
1.36 + p->f();
1.37 +}
1.38 +
1.39 +void PureVirtualCall()
1.40 +{
1.41 + // generates a pure virtual function call
1.42 + B b;
1.43 + b.use(); // make sure b's actually used
1.44 +}
1.45 +
1.46 +// Keep these in sync with CrashTestUtils.jsm!
1.47 +const int16_t CRASH_INVALID_POINTER_DEREF = 0;
1.48 +const int16_t CRASH_PURE_VIRTUAL_CALL = 1;
1.49 +const int16_t CRASH_RUNTIMEABORT = 2;
1.50 +const int16_t CRASH_OOM = 3;
1.51 +const int16_t CRASH_MOZ_CRASH = 4;
1.52 +const int16_t CRASH_ABORT = 5;
1.53 +
1.54 +extern "C" NS_EXPORT
1.55 +void Crash(int16_t how)
1.56 +{
1.57 + switch (how) {
1.58 + case CRASH_INVALID_POINTER_DEREF: {
1.59 + volatile int* foo = (int*)0x42;
1.60 + *foo = 0;
1.61 + // not reached
1.62 + break;
1.63 + }
1.64 + case CRASH_PURE_VIRTUAL_CALL: {
1.65 + PureVirtualCall();
1.66 + // not reached
1.67 + break;
1.68 + }
1.69 + case CRASH_RUNTIMEABORT: {
1.70 + NS_RUNTIMEABORT("Intentional crash");
1.71 + break;
1.72 + }
1.73 + case CRASH_OOM: {
1.74 + mozilla::unused << moz_xmalloc((size_t) -1);
1.75 + mozilla::unused << moz_xmalloc((size_t) -1);
1.76 + mozilla::unused << moz_xmalloc((size_t) -1);
1.77 + break;
1.78 + }
1.79 + case CRASH_MOZ_CRASH: {
1.80 + MOZ_CRASH();
1.81 + break;
1.82 + }
1.83 + case CRASH_ABORT: {
1.84 + abort();
1.85 + break;
1.86 + }
1.87 + default:
1.88 + break;
1.89 + }
1.90 +}
1.91 +
1.92 +extern "C" NS_EXPORT
1.93 +nsISupports* LockDir(nsIFile *directory)
1.94 +{
1.95 + nsISupports* lockfile = nullptr;
1.96 + XRE_LockProfileDirectory(directory, &lockfile);
1.97 + return lockfile;
1.98 +}
1.99 +
1.100 +char testData[32];
1.101 +
1.102 +extern "C" NS_EXPORT
1.103 +uint64_t SaveAppMemory()
1.104 +{
1.105 + for (size_t i=0; i<sizeof(testData); i++)
1.106 + testData[i] = i;
1.107 +
1.108 + FILE *fp = fopen("crash-addr", "w");
1.109 + if (!fp)
1.110 + return 0;
1.111 + fprintf(fp, "%p\n", (void *)testData);
1.112 + fclose(fp);
1.113 +
1.114 + return (int64_t)testData;
1.115 +}
1.116 +
1.117 +#ifdef XP_WIN32
1.118 +static LONG WINAPI HandleException(EXCEPTION_POINTERS* exinfo)
1.119 +{
1.120 + TerminateProcess(GetCurrentProcess(), 0);
1.121 + return 0;
1.122 +}
1.123 +
1.124 +extern "C" NS_EXPORT
1.125 +void TryOverrideExceptionHandler()
1.126 +{
1.127 + SetUnhandledExceptionFilter(HandleException);
1.128 +}
1.129 +#endif
