blob: d9938a1483db1047e17566c8b877c6e7d18eded1 (
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
56
57
58
59
60
|
//===- 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
/// standard error, followed by a newline.
void llvm_report_error(const std::string &reason) NORETURN;
/// This function calls abort(), and prints the optional message to stderr.
/// Call this instead of assert(0), so that compiler knows the path is not
/// reachable even for NDEBUG builds.
void llvm_unreachable(const char *msg=0) NORETURN;
}
#ifndef NDEBUG
#define LLVM_UNREACHABLE(msg) llvm_unreachable(msg)
#else
#define LLVM_UNREACHABLE(msg) llvm_unreachable()
#endif
#endif
|
