1/* ===-- int_util.c - Implement internal utilities --------------------------===
2 *
3 *                     The LLVM Compiler Infrastructure
4 *
5 * This file is dual licensed under the MIT and the University of Illinois Open
6 * Source Licenses. See LICENSE.TXT for details.
7 *
8 * ===----------------------------------------------------------------------===
9 */
10
11#include "int_util.h"
12#include "int_lib.h"
13
14/* NOTE: The definitions in this file are declared weak because we clients to be
15 * able to arbitrarily package individual functions into separate .a files. If
16 * we did not declare these weak, some link situations might end up seeing
17 * duplicate strong definitions of the same symbol.
18 *
19 * We can't use this solution for kernel use (which may not support weak), but
20 * currently expect that when built for kernel use all the functionality is
21 * packaged into a single library.
22 */
23
24#ifdef KERNEL_USE
25
26extern void panic(const char *, ...) __attribute__((noreturn));
27#ifndef _WIN32
28__attribute__((visibility("hidden")))
29#endif
30void compilerrt_abort_impl(const char *file, int line, const char *function) {
31  panic("%s:%d: abort in %s", file, line, function);
32}
33
34#elif __APPLE__ && !__STATIC__
35
36/* from libSystem.dylib */
37extern void __assert_rtn(const char *func, const char *file,
38                     int line, const char * message) __attribute__((noreturn));
39
40#ifndef _WIN32
41__attribute__((weak))
42__attribute__((visibility("hidden")))
43#endif
44void compilerrt_abort_impl(const char *file, int line, const char *function) {
45  __assert_rtn(function, file, line, "libcompiler_rt abort");
46}
47
48
49#else
50
51/* Get the system definition of abort() */
52#include <stdlib.h>
53
54#ifndef _WIN32
55__attribute__((weak))
56__attribute__((visibility("hidden")))
57#endif
58void compilerrt_abort_impl(const char *file, int line, const char *function) {
59  abort();
60}
61
62#endif
63