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31e2466f15
This will replace exit()/abort() style error handling with an API that allows clients to register custom error handling hooks. The default is to call exit(1) when no error handler is provided. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74922 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
//===- llvm/Support/ErrorHandling.h - Callbacks for errors ------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines an API used to indicate error conditions.
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// Callbacks can be registered for these errors through this API.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_ERRORHANDLING_H
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#define LLVM_SUPPORT_ERRORHANDLING_H
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#include "llvm/Support/Compiler.h"
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namespace llvm {
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// An error handler callback.
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typedef void (*llvm_error_handler_t)(const std::string& reason);
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// Installs a new error handler: this function will be called whenever a
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// serious error is encountered by LLVM.
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// If you are using llvm_start_multithreaded, you should register the handler
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// before doing that.
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//
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// If no error handler is installed the default is to print the error message
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// to stderr, and call exit(1).
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// If an error handler is installed then it is the handler's responsibility to
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// log the message, it will no longer be printed to stderr.
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// If the error handler returns, then exit(1) will be called.
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void llvm_install_error_handler(llvm_error_handler_t handler);
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// Restores default error handling behaviour.
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// This must not be called between llvm_start_multithreaded() and
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// llvm_stop_multithreaded().
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void llvm_remove_error_handler(void);
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// Reports a serious error, calling any installed error handler.
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// If no error handler is installed the default is to print the message to
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void llvm_report_error(const std::string &reason) NORETURN;
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// This function calls abort().
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// Call this after assert(0), so that compiler knows the path is not
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// reachable.
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void llvm_unreachable(void) NORETURN;
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}
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#endif
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