aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* Copyright (c) 2009 Loren Merritt
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#define GLUE(a, b) a ## b
#define JOIN(a, b) GLUE(a, b)
#define X(s) JOIN(EXTERN_ASM, s)
#if __APPLE__
#define R(n) r ## n
#else
#define R(n) n
#endif
#if ARCH_PPC64
#define PTR .quad
#define lp ld
#define lpx ldx
#define stp std
#define stpu stdu
#define PS 8
#define L(s) JOIN(., s)
.macro extfunc name
.global X(\name)
#if _CALL_ELF == 2
.text
X(\name):
addis %r2, %r12, .TOC.-X(\name)@ha
addi %r2, %r2, .TOC.-X(\name)@l
.localentry X(\name), .-X(\name)
#else
.section .opd, "aw"
X(\name):
.quad L(\name), .TOC.@tocbase, 0
.previous
.type X(\name), STT_FUNC
L(\name):
#endif
.endm
.macro movrel rd, sym, gp
ld \rd, \sym@got(R(2))
.endm
.macro get_got rd
.endm
#else /* ARCH_PPC64 */
#define PTR .int
#define lp lwz
#define lpx lwzx
#define stp stw
#define stpu stwu
#define PS 4
#define L(s) s
.macro extfunc name
.global X(\name)
.type X(\name), STT_FUNC
X(\name):
\name:
.endm
.macro movrel rd, sym, gp
#if CONFIG_PIC
lwz \rd, \sym@got(\gp)
#else
lis \rd, \sym@ha
la \rd, \sym@l(\rd)
#endif
.endm
.macro get_got rd
#if CONFIG_PIC
bcl 20, 31, .Lgot\@
.Lgot\@:
mflr \rd
addis \rd, \rd, _GLOBAL_OFFSET_TABLE_ - .Lgot\@@ha
addi \rd, \rd, _GLOBAL_OFFSET_TABLE_ - .Lgot\@@l
#endif
.endm
#endif /* ARCH_PPC64 */
#if HAVE_IBM_ASM
.macro DEFINE_REG n
.equiv r\n, \n
.equiv f\n, \n
.equiv v\n, \n
.endm
DEFINE_REG 0
DEFINE_REG 1
DEFINE_REG 2
DEFINE_REG 3
DEFINE_REG 4
DEFINE_REG 5
DEFINE_REG 6
DEFINE_REG 7
DEFINE_REG 8
DEFINE_REG 9
DEFINE_REG 10
DEFINE_REG 11
DEFINE_REG 12
DEFINE_REG 13
DEFINE_REG 14
DEFINE_REG 15
DEFINE_REG 16
DEFINE_REG 17
DEFINE_REG 18
DEFINE_REG 19
DEFINE_REG 20
DEFINE_REG 21
DEFINE_REG 22
DEFINE_REG 23
DEFINE_REG 24
DEFINE_REG 25
DEFINE_REG 26
DEFINE_REG 27
DEFINE_REG 28
DEFINE_REG 29
DEFINE_REG 30
DEFINE_REG 31
#endif /* HAVE_IBM_ASM */
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