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 \ 46 DECLARE_SYMBOL_VISIBILITY(name) \ 47 SYMBOL_NAME(name): 48 49#define DEFINE_COMPILERRT_PRIVATE_FUNCTION(name) \ 50 .globl SYMBOL_NAME(name) SEPARATOR \ 51 HIDDEN_DIRECTIVE SYMBOL_NAME(name) SEPARATOR \ 52 SYMBOL_NAME(name): 53 54#define DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(name) \ 55 .globl name SEPARATOR \ 56 HIDDEN_DIRECTIVE name SEPARATOR \ 57 name: 58 59#define DEFINE_COMPILERRT_FUNCTION_ALIAS(name, target) \ 60 .globl SYMBOL_NAME(name) SEPARATOR \ 61 .set SYMBOL_NAME(name), SYMBOL_NAME(target) SEPARATOR 62 63#if defined (__ARM_EABI__) 64# define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) \ 65 DEFINE_COMPILERRT_FUNCTION_ALIAS(aeabi_name, name) 66#else 67# define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) 68#endif 69 70#endif /* COMPILERRT_ASSEMBLY_H */ 71