1 /* ===-- assembly.h - compiler-rt assembler support macros -----------------=== 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 * This file defines macros for use in compiler-rt assembler source. 11 * This file is not part of the interface of this library. 12 * 13 * ===----------------------------------------------------------------------=== 14 */ 15 16 #ifndef COMPILERRT_ASSEMBLY_H 17 #define COMPILERRT_ASSEMBLY_H 18 19 #if defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__) 20 # define SEPARATOR @ 21 #else 22 # define SEPARATOR ; 23 #endif 24 25 #if defined(__APPLE__) 26 # define HIDDEN_DIRECTIVE .private_extern 27 # define LOCAL_LABEL(name) L_##name 28 #else 29 # define HIDDEN_DIRECTIVE .hidden 30 # define LOCAL_LABEL(name) .L_##name 31 #endif 32 33 #define GLUE2(a, b) a##b 34 #define GLUE(a, b) GLUE2(a, b) 35 #define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name) 36 37 #ifdef VISIBILITY_HIDDEN 38 # define DECLARE_SYMBOL_VISIBILITY(name) \ 39 HIDDEN_DIRECTIVE SYMBOL_NAME(name) SEPARATOR 40 #else 41 # define DECLARE_SYMBOL_VISIBILITY(name) 42 #endif 43 44 #define DEFINE_COMPILERRT_FUNCTION(name) \ 45 .globl SYMBOL_NAME(name) SEPARATOR DECLARE_SYMBOL_VISIBILITY(name) \ 46 SYMBOL_NAME(name) \ 47 : 48 49 #define DEFINE_COMPILERRT_PRIVATE_FUNCTION(name) \ 50 .globl SYMBOL_NAME(name) SEPARATOR HIDDEN_DIRECTIVE SYMBOL_NAME(name) \ 51 SEPARATOR SYMBOL_NAME(name) \ 52 : 53 54 #define DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(name) \ 55 .globl name SEPARATOR HIDDEN_DIRECTIVE name SEPARATOR name: 56 57 #define DEFINE_COMPILERRT_FUNCTION_ALIAS(name, target) \ 58 .globl SYMBOL_NAME(name) SEPARATOR.set SYMBOL_NAME(name), \ 59 SYMBOL_NAME(target) SEPARATOR 60 61 #if defined(__ARM_EABI__) 62 # define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) \ 63 DEFINE_COMPILERRT_FUNCTION_ALIAS(aeabi_name, name) 64 #else 65 # define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) 66 #endif 67 68 #endif /* COMPILERRT_ASSEMBLY_H */ 69