78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
//===- lib/Support/ErrorHandling.cpp - Callbacks for errors ---------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines an API used to indicate fatal error conditions. Non-fatal
|
|
// errors (most of them) should be handled through LLVMContext.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/ADT/Twine.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include "llvm/System/Signals.h"
|
|
#include "llvm/System/Threading.h"
|
|
#include <cassert>
|
|
#include <cstdlib>
|
|
using namespace llvm;
|
|
using namespace std;
|
|
|
|
static fatal_error_handler_t ErrorHandler = 0;
|
|
static void *ErrorHandlerUserData = 0;
|
|
|
|
void llvm::install_fatal_error_handler(fatal_error_handler_t handler,
|
|
void *user_data) {
|
|
assert(!llvm_is_multithreaded() &&
|
|
"Cannot register error handlers after starting multithreaded mode!\n");
|
|
assert(!ErrorHandler && "Error handler already registered!\n");
|
|
ErrorHandler = handler;
|
|
ErrorHandlerUserData = user_data;
|
|
}
|
|
|
|
void llvm::remove_fatal_error_handler() {
|
|
ErrorHandler = 0;
|
|
}
|
|
|
|
void llvm::report_fatal_error(const char *reason) {
|
|
report_fatal_error(Twine(reason));
|
|
}
|
|
|
|
void llvm::report_fatal_error(const std::string &reason) {
|
|
report_fatal_error(Twine(reason));
|
|
}
|
|
|
|
void llvm::report_fatal_error(const Twine &reason) {
|
|
if (!ErrorHandler) {
|
|
errs() << "LLVM ERROR: " << reason << "\n";
|
|
} else {
|
|
ErrorHandler(ErrorHandlerUserData, reason.str());
|
|
}
|
|
|
|
// If we reached here, we are failing ungracefully. Run the interrupt handlers
|
|
// to make sure any special cleanups get done, in particular that we remove
|
|
// files registered with RemoveFileOnSignal.
|
|
sys::RunInterruptHandlers();
|
|
|
|
exit(1);
|
|
}
|
|
|
|
void llvm::llvm_unreachable_internal(const char *msg, const char *file,
|
|
unsigned line) {
|
|
// This code intentionally doesn't call the ErrorHandler callback, because
|
|
// llvm_unreachable is intended to be used to indicate "impossible"
|
|
// situations, and not legitimate runtime errors.
|
|
if (msg)
|
|
dbgs() << msg << "\n";
|
|
dbgs() << "UNREACHABLE executed";
|
|
if (file)
|
|
dbgs() << " at " << file << ":" << line;
|
|
dbgs() << "!\n";
|
|
abort();
|
|
}
|