llvm-project/compiler-rt/lib/int_util.c

63 lines
1.8 KiB
C

/* ===-- int_util.c - Implement internal utilities --------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*/
#include "int_util.h"
#include "int_lib.h"
/* NOTE: The definitions in this file are declared weak because we clients to be
* able to arbitrarily package individual functions into separate .a files. If
* we did not declare these weak, some link situations might end up seeing
* duplicate strong definitions of the same symbol.
*
* We can't use this solution for kernel use (which may not support weak), but
* currently expect that when built for kernel use all the functionality is
* packaged into a single library.
*/
#ifdef KERNEL_USE
extern void panic(const char *, ...) __attribute__((noreturn));
#ifndef _WIN32
__attribute__((visibility("hidden")))
#endif
void compilerrt_abort_impl(const char *file, int line, const char *function) {
panic("%s:%d: abort in %s", file, line, function);
}
#elif __APPLE__ && !__STATIC__
/* from libSystem.dylib */
extern void __assert_rtn(const char *func, const char *file,
int line, const char * message) __attribute__((noreturn));
#ifndef _WIN32
__attribute__((weak))
__attribute__((visibility("hidden")))
#endif
void compilerrt_abort_impl(const char *file, int line, const char *function) {
__assert_rtn(function, file, line, "libcompiler_rt abort");
}
#else
/* Get the system definition of abort() */
#include <stdlib.h>
#ifndef _WIN32
__attribute__((weak))
__attribute__((visibility("hidden")))
#endif
void compilerrt_abort_impl(const char *file, int line, const char *function) {
abort();
}
#endif