assembly.h revision 222656
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 DEFINE_COMPILERRT_FUNCTION(name) \ 39 .globl SYMBOL_NAME(name) SEPARATOR \ 40 HIDDEN_DIRECTIVE SYMBOL_NAME(name) SEPARATOR \ 41 SYMBOL_NAME(name): 42#else 43#define DEFINE_COMPILERRT_FUNCTION(name) \ 44 .globl SYMBOL_NAME(name) SEPARATOR \ 45 SYMBOL_NAME(name): 46#endif 47 48#define DEFINE_COMPILERRT_PRIVATE_FUNCTION(name) \ 49 .globl SYMBOL_NAME(name) SEPARATOR \ 50 HIDDEN_DIRECTIVE SYMBOL_NAME(name) SEPARATOR \ 51 SYMBOL_NAME(name): 52 53#define DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(name) \ 54 .globl name SEPARATOR \ 55 HIDDEN_DIRECTIVE name SEPARATOR \ 56 name: 57 58#define DEFINE_COMPILERRT_FUNCTION_ALIAS(name, target) \ 59 .globl SYMBOL_NAME(name) SEPARATOR \ 60 .set SYMBOL_NAME(name), SYMBOL_NAME(target) SEPARATOR 61 62#if defined (__ARM_EABI__) 63# define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) \ 64 DEFINE_COMPILERRT_FUNCTION_ALIAS(aeabi_name, name) 65#else 66# define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) 67#endif 68 69#endif /* COMPILERRT_ASSEMBLY_H */ 70