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 26 extern void panic(const char *, ...) __attribute__((noreturn)); 27 __attribute__((visibility("hidden"))) 28 void compilerrt_abort_impl(const char *file, int line, const char *function) { 29 panic("%s:%d: abort in %s", file, line, function); 30 } 31 32 #elif __APPLE__ && !__STATIC__ 33 34 /* from libSystem.dylib */ 35 extern void __assert_rtn(const char *func, const char *file, 36 int line, const char * message) __attribute__((noreturn)); 37 38 __attribute__((weak)) 39 __attribute__((visibility("hidden"))) 40 void compilerrt_abort_impl(const char *file, int line, const char *function) { 41 __assert_rtn(function, file, line, "libcompiler_rt abort"); 42 } 43 44 45 #else 46 47 /* Get the system definition of abort() */ 48 #include <stdlib.h> 49 50 __attribute__((weak)) 51 __attribute__((visibility("hidden"))) 52 void compilerrt_abort_impl(const char *file, int line, const char *function) { 53 abort(); 54 } 55 56 #endif 57
