diff options
| author | Janne Grunau <janne-libav@jannau.net> | 2013-12-10 20:13:32 +0100 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2014-01-15 12:05:09 +0100 |
| commit | b7b17ed66e199afc7246e642bf3b35c3f8eca217 (patch) | |
| tree | 2bd123eca798d0ccfaf4c10cf4e41f5e7a847ed3 /libavutil/aarch64/asm.S | |
| parent | 1e9265cd8f0821acbeca1db437be1361a3976b85 (diff) | |
aarch64: add cpuflags support for NEON and VFP
NEON and VFP are currently mandatory for all ARMv8 profiles. Both are
handled as extensions as far as cpuflags are concerned. This is
consistent with handling x86_64 which always has SSE2, but still
handles it as an extension.
Diffstat (limited to 'libavutil/aarch64/asm.S')
| -rw-r--r-- | libavutil/aarch64/asm.S | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libavutil/aarch64/asm.S b/libavutil/aarch64/asm.S new file mode 100644 index 0000000000..94e5a84583 --- /dev/null +++ b/libavutil/aarch64/asm.S @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" + +#ifdef __ELF__ +# define ELF +#else +# define ELF // +#endif + +.macro function name, export=0, align=2 + .macro endfunc +ELF .size \name, . - \name + .endfunc + .purgem endfunc + .endm + .text + .align \align + .if \export + .global EXTERN_ASM\name +EXTERN_ASM\name: + .endif +ELF .type \name, %function + .func \name +\name: +.endm + +.macro const name, align=2 + .macro endconst +ELF .size \name, . - \name + .purgem endconst + .endm + .section .rodata + .align \align +\name: +.endm + +.macro movrel rd, val +#if CONFIG_PIC + adrp \rd, #:pg_hi21:\val + add \rd, \rd, #:lo12:\val +#else + ldr \rd, =\val +#endif +.endm |