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