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/* ===-- 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_lib.h" 
#include "int_util.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 
 
NORETURN extern void panic(const char *, ...); 
#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__ 
 
/* from libSystem.dylib */ 
NORETURN extern void __assert_rtn(const char *func, const char *file, int line, 
                                  const char *message); 
 
#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