ref: 6a95aa56825af40b265363ec73a4790af9a41f28
dir: /src/arm/asm.S/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2018, Janne Grunau
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DAV1D_SRC_ARM_ASM_S__
#define __DAV1D_SRC_ARM_ASM_S__
#include "config.h"
#if ARCH_ARM
.syntax unified
#ifdef __ELF__
.fpu neon
.eabi_attribute 10, 0 // suppress Tag_FP_arch
.eabi_attribute 12, 0 // suppress Tag_Advanced_SIMD_arch
#endif
#ifdef _WIN32
#define CONFIG_THUMB 1
#else
#define CONFIG_THUMB 0
#endif
#if CONFIG_THUMB
.thumb
#define A @
#define T
#else
#define A
#define T @
#endif
#endif
#if !defined(PIC)
#if defined(__PIC__)
#define PIC __PIC__
#elif defined(__pic__)
#define PIC __pic__
#endif
#endif
#ifndef PRIVATE_PREFIX
#define PRIVATE_PREFIX dav1d_
#endif
#define PASTE(a,b) a ## b
#define CONCAT(a,b) PASTE(a,b)
#ifdef PREFIX
#define EXTERN CONCAT(_,PRIVATE_PREFIX)
#else
#define EXTERN PRIVATE_PREFIX
#endif
.macro function name, export=0, align=2
.macro endfunc
#ifdef __ELF__
.size \name, . - \name
#endif
#if HAVE_AS_FUNC
.endfunc
#endif
.purgem endfunc
.endm
.text
.align \align
.if \export
.global EXTERN\name
#ifdef __ELF__
.type EXTERN\name, %function
#endif
#if HAVE_AS_FUNC
.func EXTERN\name
#endif
EXTERN\name:
.else
#ifdef __ELF__
.type \name, %function
#endif
#if HAVE_AS_FUNC
.func \name
#endif
.endif
\name:
.endm
.macro const name, align=2
.macro endconst
#ifdef __ELF__
.size \name, . - \name
#endif
.purgem endconst
.endm
#if !defined(__MACH__)
.section .rodata
#else
.const_data
#endif
.align \align
\name:
.endm
#ifdef __APPLE__
#define L(x) L ## x
#else
#define L(x) .L ## x
#endif
#define X(x) CONCAT(EXTERN, x)
#endif /* __DAV1D_SRC_ARM_ASM_S__ */