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Allocate half a megabyte that is freed just before minidump is written in the breakpad exception handler (Siana)

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This commit is contained in:
Latif Khalifa
2013-10-30 19:10:17 +01:00
parent f1eab3f2c5
commit 51d5984afa
1 changed files with 21 additions and 4 deletions
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25
indra/llcommon/llapp.cpp
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@@ -123,6 +123,8 @@ LLApp::LLApp() : mThreadErrorp(NULL)
commonCtor();
}
static void* sCrashLoggerReserve = NULL;
void LLApp::commonCtor()
{
// Set our status to running
@@ -148,6 +150,12 @@ void LLApp::commonCtor()
sApplication = this;
mExceptionHandler = 0;
#if LL_WINDOWS
sCrashLoggerReserve = VirtualAlloc(NULL, 512*1024, MEM_COMMIT|MEM_RESERVE, PAGE_NOACCESS);
#else
sCrashLoggerReserve = malloc(512*1024);
#endif
// initialize the buffer to write the minidump filename to
// (this is used to avoid allocating memory in the crash handler)
@@ -155,6 +163,16 @@ void LLApp::commonCtor()
mCrashReportPipeStr = L"\\\\.\\pipe\\LLCrashReporterPipe";
}
static bool clear_CrashLoggerReserve_callback(void* context, EXCEPTION_POINTERS* exinfo, MDRawAssertionInfo* assertion)
{
#if LL_WINDOWS
VirtualFree(sCrashLoggerReserve, 0, MEM_RELEASE);
#else
free(sCrashLoggerReserve);
#endif
return true;
}
LLApp::LLApp(LLErrorThread *error_thread) :
mThreadErrorp(error_thread)
{
@@ -309,7 +327,7 @@ void LLApp::setupErrorHandling()
{
mExceptionHandler = new google_breakpad::ExceptionHandler(
std::wstring(mDumpPath.begin(),mDumpPath.end()), //Dump path
0, //dump filename
clear_CrashLoggerReserve_callback,
windows_post_minidump_callback,
0,
google_breakpad::ExceptionHandler::HANDLER_ALL);
@@ -367,7 +385,7 @@ void LLApp::setupErrorHandling()
if(installHandler && (mExceptionHandler == 0))
{
mExceptionHandler = new google_breakpad::ExceptionHandler(mDumpPath, 0, &unix_post_minidump_callback, 0, true, 0);
mExceptionHandler = new google_breakpad::ExceptionHandler(mDumpPath, clear_CrashLoggerReserve_callback, &unix_post_minidump_callback, 0, true, 0);
}
#elif LL_LINUX
if(installHandler && (mExceptionHandler == 0))
@@ -377,8 +395,7 @@ void LLApp::setupErrorHandling()
mDumpPath = "/tmp";
}
google_breakpad::MinidumpDescriptor desc(mDumpPath);
//mExceptionHandler = new google_breakpad::ExceptionHandler(desc, 0, unix_minidump_callback, 0, true, 0);
mExceptionHandler = new google_breakpad::ExceptionHandler(desc, NULL, unix_minidump_callback, NULL, true, -1);
mExceptionHandler = new google_breakpad::ExceptionHandler(desc, clear_CrashLoggerReserve_callback, unix_minidump_callback, NULL, true, -1);
}
#endif