blob: 758d9243c048072b9d1ec3c60f4c32cf18ab4ebe (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
//===- 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"
#include <string>
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;
}
#define LLVM_UNREACHABLE(msg) do { assert(0 && msg); llvm_unreachable(); } while(0)
#endif
|
