projects / apple / libplatform.git / blame
| Commit | Line | Data |
|---|---|---|
| ada7c492 A |
1 | /* |
| 2 | * Copyright (c) 2013 Apple Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. The rights granted to you under the License | |
| 10 | * may not be used to create, or enable the creation or redistribution of, | |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any | |
| 13 | * terms of an Apple operating system software license agreement. | |
| 14 | * | |
| 15 | * Please obtain a copy of the License at | |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 17 | * | |
| 18 | * The Original Code and all software distributed under the License are | |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 23 | * Please see the License for the specific language governing rights and | |
| 24 | * limitations under the License. | |
| 25 | * | |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
| 27 | */ | |
| 28 | ||
| 29 | #ifndef __INTERNAL_ASM_H__ | |
| 30 | #define __INTERNAL_ASM_H__ | |
| 31 | ||
| 32 | #include <machine/cpu_capabilities.h> | |
| 33 | ||
| 34 | #define OS_STRINGIFY1(s) #s | |
| 35 | #define OS_STRINGIFY(s) OS_STRINGIFY1(s) | |
| 36 | #define OS_CONCAT1(x, y) x ## y | |
| 37 | #define OS_CONCAT(x, y) OS_CONCAT1(x, y) | |
| 38 | ||
| 39 | #ifdef __ASSEMBLER__ | |
| 40 | #define OS_VARIANT(f, v) OS_CONCAT(_, OS_CONCAT(f, OS_CONCAT($VARIANT$, v))) | |
| 41 | #else | |
| 42 | #define OS_VARIANT(f, v) OS_CONCAT(f, OS_CONCAT($VARIANT$, v)) | |
| 43 | #endif | |
| 44 | ||
| 45 | #if defined(__ASSEMBLER__) | |
| 46 | ||
| 47 | #if defined(__i386__) || defined(__x86_64__) | |
| 48 | ||
| 49 | #define OS_VARIANT_FUNCTION_START(name, variant, alignment) \ | |
| 50 | .text ; \ | |
| 51 | .align alignment, 0x90 ; \ | |
| 52 | .private_extern OS_VARIANT(name, variant) ; \ | |
| 53 | OS_VARIANT(name, variant) ## : | |
| 54 | ||
| 55 | // GENERIC indicates that this function will be chosen as the generic | |
| 56 | // implementation (at compile time) when building targets which do not | |
| 57 | // support dyld variant resolves. | |
| 58 | #if defined(VARIANT_NO_RESOLVERS) || defined(VARIANT_DYLD) | |
| 59 | #define OS_VARIANT_FUNCTION_START_GENERIC(name, variant, alignment) \ | |
| 60 | OS_VARIANT_FUNCTION_START(name, variant, alignment) \ | |
| 61 | .globl _ ## name ; \ | |
| 62 | _ ## name ## : | |
| 63 | #else | |
| 64 | #define OS_VARIANT_FUNCTION_START_GENERIC OS_VARIANT_FUNCTION_START | |
| 65 | #endif | |
| 66 | ||
| 67 | #define OS_ATOMIC_FUNCTION_START(name, alignment) \ | |
| 68 | .text ; \ | |
| 69 | .align alignment, 0x90 ; \ | |
| 70 | .globl _ ## name ; \ | |
| 71 | _ ## name ## : | |
| 72 | ||
| 73 | #endif // defined(__i386__) || defined(__x86_64__) | |
| 74 | ||
| 75 | #endif // defined(__ASSEMBLER__) | |
| 76 | ||
| 77 | #endif // __INTERNAL_ASM_H__ |