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//===- llvm/Support/ErrorHandling.h - Callbacks for errors ------*- C++ -*-===//
//
// 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 error conditions.
// Callbacks can be registered for these errors through this API.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_ERRORHANDLING_H
#define LLVM_SUPPORT_ERRORHANDLING_H
#include "llvm/Support/Compiler.h"
namespace llvm {
// An error handler callback.
typedef void (*llvm_error_handler_t)(const std::string& reason);
// Installs a new error handler: this function will be called whenever a
// serious error is encountered by LLVM.
// If you are using llvm_start_multithreaded, you should register the handler
// before doing that.
//
// If no error handler is installed the default is to print the error message
// to stderr, and call exit(1).
// If an error handler is installed then it is the handler's responsibility to
// log the message, it will no longer be printed to stderr.
// If the error handler returns, then exit(1) will be called.
void llvm_install_error_handler(llvm_error_handler_t handler);
// Restores default error handling behaviour.
// This must not be called between llvm_start_multithreaded() and
// llvm_stop_multithreaded().
void llvm_remove_error_handler(void);
// Reports a serious error, calling any installed error handler.
// If no error handler is installed the default is to print the message to
void llvm_report_error(const std::string &reason) NORETURN;
// This function calls abort().
// Call this after assert(0), so that compiler knows the path is not
// reachable.
void llvm_unreachable(void) NORETURN;
}
#endif
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