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