xref: /llvm-project/llvm/include/llvm-c/ErrorHandling.h (revision ad523cc398d132ca48215f6499ba420cf0f7aaaa)

/*===-- llvm-c/ErrorHandling.h - Error Handling C Interface -------*- C -*-===*\
|*                                                                            *|
|* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
|* Exceptions.                                                                *|
|* See https://llvm.org/LICENSE.txt for license information.                  *|
|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    *|
|*                                                                            *|
|*===----------------------------------------------------------------------===*|
|*                                                                            *|
|* This file defines the C interface to LLVM's error handling mechanism.      *|
|*                                                                            *|
\*===----------------------------------------------------------------------===*/

#ifndef LLVM_C_ERRORHANDLING_H
#define LLVM_C_ERRORHANDLING_H

#include "llvm-c/ExternC.h"

LLVM_C_EXTERN_C_BEGIN

/**
 * @addtogroup LLVMCError
 *
 * @{
 */

typedef void (*LLVMFatalErrorHandler)(const char *Reason);

/**
 * Install a fatal error handler. By default, if LLVM detects a fatal error, it
 * will call exit(1). This may not be appropriate in many contexts. For example,
 * doing exit(1) will bypass many crash reporting/tracing system tools. This
 * function allows you to install a callback that will be invoked prior to the
 * call to exit(1).
 */
void LLVMInstallFatalErrorHandler(LLVMFatalErrorHandler Handler);

/**
 * Reset the fatal error handler. This resets LLVM's fatal error handling
 * behavior to the default.
 */
void LLVMResetFatalErrorHandler(void);

/**
 * Enable LLVM's built-in stack trace code. This intercepts the OS's crash
 * signals and prints which component of LLVM you were in at the time if the
 * crash.
 */
void LLVMEnablePrettyStackTrace(void);

/**
 * @}
 */

LLVM_C_EXTERN_C_END

#endif