| /* |
| * Copyright (c) 2012-2013 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| /*========================================================================== |
| * |
| * @file: aniCompiler.h |
| * |
| * @brief: This file tries to abstract the differences among compilers. |
| * Supported compilers are: |
| * ARM RVCT compiler |
| * |
| * @author: Kumar Anand |
| * |
| * |
| *=========================================================================*/ |
| #ifndef __ANI_COMPILER_ABSTRACT_H |
| #define __ANI_COMPILER_ABSTRACT_H |
| |
| /* |
| * 1. GNU C/C++ Compiler |
| * |
| * How to detect gcc : __GNUC__ |
| * How to detect gcc version : |
| * major version : __GNUC__ (2 = 2.x, 3 = 3.x, 4 = 4.x) |
| * minor version : __GNUC_MINOR__ |
| * |
| * 2. Microsoft C/C++ Compiler |
| * |
| * How to detect msc : _MSC_VER |
| * How to detect msc version : |
| * _MSC_VER (1200 = MSVC 6.0, 1300 = MSVC 7.0, ...) |
| * |
| * 3. Intel C/C++ Compiler |
| * |
| * How to detect icc : __INTEL_COMPILER, __ICC (legacy), __ECC (legacy) |
| * How to detect icc version : |
| * __INTEL_COMPILER, __ICC, __ECC (700 = 7.0, 900 = 9.0, ...) |
| * |
| * 4. Other compilers (not supported) |
| * |
| * Borland : __BORLANDC__ |
| * Greenhills : __ghs |
| * Metrowerks : __MWERKS__ |
| * SGI MIPSpro : __sgi |
| */ |
| |
| /* |
| * Packing directives : These are used to force compiler to pack bits and |
| * bytes in the data structure. C standard does not regulate this strictly, |
| * and many things are to compiler implementation. Many compilers support |
| * compiler specific directives or options that allow different packing |
| * and alignment. |
| * |
| * Alignment directives : Compiler may think packed data structures have |
| * no specific alignment requirement. Then compiler may generate multiple |
| * byte accesses to access two byte or four bytes data structures. This |
| * affects on performance especially for RISC systems. If some data |
| * structure is located on specific alignment always, alignment directives |
| * help compiler generate more efficient codes. |
| */ |
| |
| #undef __ANI_COMPILER_PRAGMA_PACK_STACK |
| #undef __ANI_COMPILER_PRAGMA_PACK |
| |
| #if defined(_MSC_VER) |
| #define __ANI_COMPILER_PRAGMA_PACK_STACK 1 |
| #define __ANI_COMPILER_PRAGMA_PACK 1 |
| #define __ani_attr_pre_packed |
| #define __ani_attr_packed |
| #define __ani_attr_aligned_2 |
| #define __ani_attr_aligned_4 |
| #define __ani_attr_aligned_8 |
| #define __ani_attr_aligned_16 |
| #define __ani_attr_aligned_32 |
| #define PACKED |
| #define PACKED_POST |
| #define ALIGN(__value) |
| #elif defined(__INTEL_COMPILER) || defined(__ICC) || defined(__ECC) |
| #define __ANI_COMPILER_PRAGMA_PACK 1 |
| #define __ani_attr_pre_packed |
| #define __ani_attr_packed |
| #define __ani_attr_aligned_2 |
| #define __ani_attr_aligned_4 |
| #define __ani_attr_aligned_8 |
| #define __ani_attr_aligned_16 |
| #define __ani_attr_aligned_32 |
| #define PACKED |
| #define PACKED_POST |
| #define ALIGN(__value) |
| #elif defined(__GNUC__) |
| #define __ani_attr_pre_packed |
| #define __ani_attr_packed __attribute__((packed)) |
| #define __ani_attr_aligned_2 __attribute__((aligned(2))) |
| #define __ani_attr_aligned_4 __attribute__((aligned(4))) |
| #define __ani_attr_aligned_8 __attribute__((aligned(8))) |
| #define __ani_attr_aligned_16 __attribute__((aligned(16))) |
| #define __ani_attr_aligned_32 __attribute__((aligned(32))) |
| #ifndef PACKED |
| #define PACKED |
| #endif |
| #ifndef PACKED_POST |
| #define PACKED_POST __attribute__((packed)) |
| #endif |
| #ifndef ALIGN |
| #define ALIGN(__value) __attribute__((aligned(__value))) |
| #endif |
| #elif defined(ANI_COMPILER_TYPE_RVCT) |
| /* Nothing defined so far */ |
| |
| /* |
| * RIVA 1.2 and Pronto uses ARMCT5.1 compiler and it throws lot of warning when __align() is used in structure definitions. |
| * __attribute__((aligned())) is GNU compiler attribute that is accepted by ARM compiler and resolves the warnings. |
| */ |
| #if (__ARMCC_VERSION > 400000) |
| #define __ani_attr_packed |
| #define __ani_attr_pre_packed __packed |
| #define __ani_attr_aligned_2 __attribute__((aligned(2))) |
| #define __ani_attr_aligned_4 __attribute__((aligned(4))) |
| #define __ani_attr_aligned_8 __attribute__((aligned(8))) |
| #define __ani_attr_aligned_16 __attribute__((aligned(16))) |
| #define __ani_attr_aligned_32 __attribute__((aligned(32))) |
| #define PACKED __packed |
| #define PACKED_POST |
| #define ALIGN(__value) __align(__value) |
| #define PREPACK __packed |
| #define POSTPACK |
| #else |
| #define __ani_attr_packed |
| #define __ani_attr_pre_packed __packed |
| #define __ani_attr_aligned_2 __align(2) |
| #define __ani_attr_aligned_4 __align(4) |
| #define __ani_attr_aligned_8 __align(8) |
| #define __ani_attr_aligned_16 __align(16) |
| #define __ani_attr_aligned_32 __align(32) |
| #define PACKED __packed |
| #define PACKED_POST |
| #define ALIGN(__value) __align(__value) |
| #endif |
| |
| #else |
| #error "Unknown compiler" |
| #endif |
| |
| #ifndef PACKED_PRE |
| #define PACKED_PRE __ani_attr_pre_packed |
| #endif |
| |
| #ifndef ALIGN_4 |
| #define ALIGN_4 __ani_attr_aligned_4 |
| #endif |
| |
| #endif //__ANI_COMPILER_ABSTRACT_H |
| |