#include "llvm/Support/FileSystem.h"
#include <algorithm>
#include <stdio.h>
#include <vector>
#include "WindowsSupport.h"
#ifdef __MINGW32__
#include <imagehlp.h>
#else
#include <dbghelp.h>
#endif
#include <psapi.h>
#ifdef _MSC_VER
#pragma comment(lib, "psapi.lib")
#pragma comment(lib, "dbghelp.lib")
#elif __MINGW32__
#if ((HAVE_LIBIMAGEHLP != 1) || (HAVE_LIBPSAPI != 1))
#error "libimagehlp.a & libpsapi.a should be present"
#endif
#pragma GCC diagnostic ignored "-Wformat"
#pragma GCC diagnostic ignored "-Wformat-extra-args"
#if !defined(__MINGW64_VERSION_MAJOR)
typedef struct _IMAGEHLP_LINE64 {
DWORD SizeOfStruct;
PVOID Key;
DWORD LineNumber;
PCHAR FileName;
DWORD64 Address;
} IMAGEHLP_LINE64, *PIMAGEHLP_LINE64;
typedef struct _IMAGEHLP_SYMBOL64 {
DWORD SizeOfStruct;
DWORD64 Address;
DWORD Size;
DWORD Flags;
DWORD MaxNameLength;
CHAR Name[1];
} IMAGEHLP_SYMBOL64, *PIMAGEHLP_SYMBOL64;
typedef struct _tagADDRESS64 {
DWORD64 Offset;
WORD Segment;
ADDRESS_MODE Mode;
} ADDRESS64, *LPADDRESS64;
typedef struct _KDHELP64 {
DWORD64 Thread;
DWORD ThCallbackStack;
DWORD ThCallbackBStore;
DWORD NextCallback;
DWORD FramePointer;
DWORD64 KiCallUserMode;
DWORD64 KeUserCallbackDispatcher;
DWORD64 SystemRangeStart;
DWORD64 KiUserExceptionDispatcher;
DWORD64 StackBase;
DWORD64 StackLimit;
DWORD64 Reserved[5];
} KDHELP64, *PKDHELP64;
typedef struct _tagSTACKFRAME64 {
ADDRESS64 AddrPC;
ADDRESS64 AddrReturn;
ADDRESS64 AddrFrame;
ADDRESS64 AddrStack;
ADDRESS64 AddrBStore;
PVOID FuncTableEntry;
DWORD64 Params[4];
BOOL Far;
BOOL Virtual;
DWORD64 Reserved[3];
KDHELP64 KdHelp;
} STACKFRAME64, *LPSTACKFRAME64;
typedef BOOL (__stdcall *PREAD_PROCESS_MEMORY_ROUTINE64)(HANDLE hProcess,
DWORD64 qwBaseAddress, PVOID lpBuffer, DWORD nSize,
LPDWORD lpNumberOfBytesRead);
typedef PVOID (__stdcall *PFUNCTION_TABLE_ACCESS_ROUTINE64)( HANDLE ahProcess,
DWORD64 AddrBase);
typedef DWORD64 (__stdcall *PGET_MODULE_BASE_ROUTINE64)(HANDLE hProcess,
DWORD64 Address);
typedef DWORD64 (__stdcall *PTRANSLATE_ADDRESS_ROUTINE64)(HANDLE hProcess,
HANDLE hThread, LPADDRESS64 lpaddr);
typedef BOOL (WINAPI *fpStackWalk64)(DWORD, HANDLE, HANDLE, LPSTACKFRAME64,
PVOID, PREAD_PROCESS_MEMORY_ROUTINE64,
PFUNCTION_TABLE_ACCESS_ROUTINE64,
PGET_MODULE_BASE_ROUTINE64,
PTRANSLATE_ADDRESS_ROUTINE64);
static fpStackWalk64 StackWalk64;
typedef DWORD64 (WINAPI *fpSymGetModuleBase64)(HANDLE, DWORD64);
static fpSymGetModuleBase64 SymGetModuleBase64;
typedef BOOL (WINAPI *fpSymGetSymFromAddr64)(HANDLE, DWORD64,
PDWORD64, PIMAGEHLP_SYMBOL64);
static fpSymGetSymFromAddr64 SymGetSymFromAddr64;
typedef BOOL (WINAPI *fpSymGetLineFromAddr64)(HANDLE, DWORD64,
PDWORD, PIMAGEHLP_LINE64);
static fpSymGetLineFromAddr64 SymGetLineFromAddr64;
typedef PVOID (WINAPI *fpSymFunctionTableAccess64)(HANDLE, DWORD64);
static fpSymFunctionTableAccess64 SymFunctionTableAccess64;
static bool load64BitDebugHelp(void) {
HMODULE hLib = ::LoadLibraryW(L"Dbghelp.dll");
if (hLib) {
StackWalk64 = (fpStackWalk64)
::GetProcAddress(hLib, "StackWalk64");
SymGetModuleBase64 = (fpSymGetModuleBase64)
::GetProcAddress(hLib, "SymGetModuleBase64");
SymGetSymFromAddr64 = (fpSymGetSymFromAddr64)
::GetProcAddress(hLib, "SymGetSymFromAddr64");
SymGetLineFromAddr64 = (fpSymGetLineFromAddr64)
::GetProcAddress(hLib, "SymGetLineFromAddr64");
SymFunctionTableAccess64 = (fpSymFunctionTableAccess64)
::GetProcAddress(hLib, "SymFunctionTableAccess64");
}
return StackWalk64 != NULL;
}
#endif #endif // __MINGW32__
static LONG WINAPI LLVMUnhandledExceptionFilter(LPEXCEPTION_POINTERS ep);
static BOOL WINAPI LLVMConsoleCtrlHandler(DWORD dwCtrlType);
static void (*InterruptFunction)() = 0;
static std::vector<std::string> *FilesToRemove = NULL;
static std::vector<std::pair<void(*)(void*), void*> > *CallBacksToRun = 0;
static bool RegisteredUnhandledExceptionFilter = false;
static bool CleanupExecuted = false;
static bool ExitOnUnhandledExceptions = false;
static PTOP_LEVEL_EXCEPTION_FILTER OldFilter = NULL;
static CRITICAL_SECTION CriticalSection;
namespace llvm {
#ifdef _MSC_VER
static int AvoidMessageBoxHook(int ReportType, char *Message, int *Return) {
if (Return)
*Return = 1;
return TRUE;
}
#endif
static void RegisterHandler() {
#if __MINGW32__ && !defined(__MINGW64_VERSION_MAJOR)
if (!load64BitDebugHelp()) {
assert(false && "These APIs should always be available");
return;
}
#endif
if (RegisteredUnhandledExceptionFilter) {
EnterCriticalSection(&CriticalSection);
return;
}
InitializeCriticalSection(&CriticalSection);
EnterCriticalSection(&CriticalSection);
RegisteredUnhandledExceptionFilter = true;
OldFilter = SetUnhandledExceptionFilter(LLVMUnhandledExceptionFilter);
SetConsoleCtrlHandler(LLVMConsoleCtrlHandler, TRUE);
if (getenv("LLVM_DISABLE_CRASH_REPORT")) {
#ifdef _MSC_VER
_CrtSetReportHook(AvoidMessageBoxHook);
#endif
SetErrorMode(SEM_FAILCRITICALERRORS |
SEM_NOGPFAULTERRORBOX |
SEM_NOOPENFILEERRORBOX);
ExitOnUnhandledExceptions = true;
}
}
bool sys::RemoveFileOnSignal(StringRef Filename, std::string* ErrMsg) {
RegisterHandler();
if (CleanupExecuted) {
if (ErrMsg)
*ErrMsg = "Process terminating -- cannot register for removal";
return true;
}
if (FilesToRemove == NULL)
FilesToRemove = new std::vector<std::string>;
FilesToRemove->push_back(Filename);
LeaveCriticalSection(&CriticalSection);
return false;
}
void sys::DontRemoveFileOnSignal(StringRef Filename) {
if (FilesToRemove == NULL)
return;
RegisterHandler();
FilesToRemove->push_back(Filename);
std::vector<std::string>::reverse_iterator I =
std::find(FilesToRemove->rbegin(), FilesToRemove->rend(), Filename);
if (I != FilesToRemove->rend())
FilesToRemove->erase(I.base()-1);
LeaveCriticalSection(&CriticalSection);
}
void sys::PrintStackTraceOnErrorSignal() {
RegisterHandler();
LeaveCriticalSection(&CriticalSection);
}
void llvm::sys::PrintStackTrace(FILE *) {
}
void sys::SetInterruptFunction(void (*IF)()) {
RegisterHandler();
InterruptFunction = IF;
LeaveCriticalSection(&CriticalSection);
}
void sys::AddSignalHandler(void (*FnPtr)(void *), void *Cookie) {
if (CallBacksToRun == 0)
CallBacksToRun = new std::vector<std::pair<void(*)(void*), void*> >();
CallBacksToRun->push_back(std::make_pair(FnPtr, Cookie));
RegisterHandler();
LeaveCriticalSection(&CriticalSection);
}
}
static void Cleanup() {
EnterCriticalSection(&CriticalSection);
CleanupExecuted = true;
if (FilesToRemove != NULL)
while (!FilesToRemove->empty()) {
llvm::sys::fs::remove(FilesToRemove->back());
FilesToRemove->pop_back();
}
if (CallBacksToRun)
for (unsigned i = 0, e = CallBacksToRun->size(); i != e; ++i)
(*CallBacksToRun)[i].first((*CallBacksToRun)[i].second);
LeaveCriticalSection(&CriticalSection);
}
void llvm::sys::RunInterruptHandlers() {
Cleanup();
}
static LONG WINAPI LLVMUnhandledExceptionFilter(LPEXCEPTION_POINTERS ep) {
Cleanup();
STACKFRAME64 StackFrame;
memset(&StackFrame, 0, sizeof(StackFrame));
DWORD machineType;
#if defined(_M_X64)
machineType = IMAGE_FILE_MACHINE_AMD64;
StackFrame.AddrPC.Offset = ep->ContextRecord->Rip;
StackFrame.AddrPC.Mode = AddrModeFlat;
StackFrame.AddrStack.Offset = ep->ContextRecord->Rsp;
StackFrame.AddrStack.Mode = AddrModeFlat;
StackFrame.AddrFrame.Offset = ep->ContextRecord->Rbp;
StackFrame.AddrFrame.Mode = AddrModeFlat;
#elif defined(_M_IX86)
machineType = IMAGE_FILE_MACHINE_I386;
StackFrame.AddrPC.Offset = ep->ContextRecord->Eip;
StackFrame.AddrPC.Mode = AddrModeFlat;
StackFrame.AddrStack.Offset = ep->ContextRecord->Esp;
StackFrame.AddrStack.Mode = AddrModeFlat;
StackFrame.AddrFrame.Offset = ep->ContextRecord->Ebp;
StackFrame.AddrFrame.Mode = AddrModeFlat;
#endif
HANDLE hProcess = GetCurrentProcess();
HANDLE hThread = GetCurrentThread();
SymSetOptions(SYMOPT_DEFERRED_LOADS|SYMOPT_LOAD_LINES);
SymInitialize(hProcess, NULL, TRUE);
while (true) {
if (!StackWalk64(machineType, hProcess, hThread, &StackFrame,
ep->ContextRecord, NULL, SymFunctionTableAccess64,
SymGetModuleBase64, NULL)) {
break;
}
if (StackFrame.AddrFrame.Offset == 0)
break;
DWORD64 PC = StackFrame.AddrPC.Offset;
#if defined(_M_X64)
fprintf(stderr, "0x%016llX", PC);
#elif defined(_M_IX86)
fprintf(stderr, "0x%08lX", static_cast<DWORD>(PC));
#endif
#if defined(_M_X64)
fprintf(stderr, " (0x%016llX 0x%016llX 0x%016llX 0x%016llX)",
StackFrame.Params[0],
StackFrame.Params[1],
StackFrame.Params[2],
StackFrame.Params[3]);
#elif defined(_M_IX86)
fprintf(stderr, " (0x%08lX 0x%08lX 0x%08lX 0x%08lX)",
static_cast<DWORD>(StackFrame.Params[0]),
static_cast<DWORD>(StackFrame.Params[1]),
static_cast<DWORD>(StackFrame.Params[2]),
static_cast<DWORD>(StackFrame.Params[3]));
#endif
if (!SymGetModuleBase64(hProcess, PC)) {
fputs(" <unknown module>\n", stderr);
continue;
}
char buffer[512];
IMAGEHLP_SYMBOL64 *symbol = reinterpret_cast<IMAGEHLP_SYMBOL64 *>(buffer);
memset(symbol, 0, sizeof(IMAGEHLP_SYMBOL64));
symbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
symbol->MaxNameLength = 512 - sizeof(IMAGEHLP_SYMBOL64);
DWORD64 dwDisp;
if (!SymGetSymFromAddr64(hProcess, PC, &dwDisp, symbol)) {
fputc('\n', stderr);
continue;
}
buffer[511] = 0;
if (dwDisp > 0)
fprintf(stderr, ", %s() + 0x%llX bytes(s)", symbol->Name, dwDisp);
else
fprintf(stderr, ", %s", symbol->Name);
IMAGEHLP_LINE64 line;
DWORD dwLineDisp;
memset(&line, 0, sizeof(line));
line.SizeOfStruct = sizeof(line);
if (SymGetLineFromAddr64(hProcess, PC, &dwLineDisp, &line)) {
fprintf(stderr, ", %s, line %lu", line.FileName, line.LineNumber);
if (dwLineDisp > 0)
fprintf(stderr, " + 0x%lX byte(s)", dwLineDisp);
}
fputc('\n', stderr);
}
if (ExitOnUnhandledExceptions)
_exit(ep->ExceptionRecord->ExceptionCode);
if (OldFilter)
return (*OldFilter)(ep);
else
return EXCEPTION_CONTINUE_SEARCH;
}
static BOOL WINAPI LLVMConsoleCtrlHandler(DWORD dwCtrlType) {
EnterCriticalSection(&CriticalSection);
Cleanup();
void (*IF)() = InterruptFunction;
InterruptFunction = 0;
if (IF) {
IF(); LeaveCriticalSection(&CriticalSection);
return TRUE; }
LeaveCriticalSection(&CriticalSection);
return FALSE;
}
#if __MINGW32__
#pragma GCC diagnostic warning "-Wformat"
#pragma GCC diagnostic warning "-Wformat-extra-args"
#endif