#include "llvm/ADT/Twine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/Threading.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Config/config.h"
#include <cassert>
#include <cstdlib>
#if defined(HAVE_UNISTD_H)
# include <unistd.h>
#endif
#if defined(_MSC_VER)
# include <io.h>
# include <fcntl.h>
#endif
using namespace llvm;
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(StringRef Reason) {
report_fatal_error(Twine(Reason));
}
void llvm::report_fatal_error(const Twine &Reason) {
if (ErrorHandler) {
ErrorHandler(ErrorHandlerUserData, Reason.str());
} else {
SmallVector<char, 64> Buffer;
raw_svector_ostream OS(Buffer);
OS << "LLVM ERROR: " << Reason << "\n";
StringRef MessageStr = OS.str();
ssize_t written = ::write(2, MessageStr.data(), MessageStr.size());
(void)written; }
sys::RunInterruptHandlers();
exit(1);
}
void llvm::llvm_unreachable_internal(const char *msg, const char *file,
unsigned line) {
if (msg)
dbgs() << msg << "\n";
dbgs() << "UNREACHABLE executed";
if (file)
dbgs() << " at " << file << ":" << line;
dbgs() << "!\n";
abort();
}