| /* |
| * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> |
| * |
| * 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" |
| |
| #ifdef __ELF__ |
| # define ELF |
| #else |
| # define ELF @ |
| #endif |
| |
| .syntax unified |
| |
| .macro require8 val=1 |
| ELF .eabi_attribute 24, \val |
| .endm |
| |
| .macro preserve8 val=1 |
| ELF .eabi_attribute 25, \val |
| .endm |
| |
| .macro function name, export=0 |
| .macro endfunc |
| ELF .size \name, . - \name |
| .endfunc |
| .purgem endfunc |
| .endm |
| .text |
| .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 mov32 rd, val |
| #if HAVE_ARMV6T2 |
| movw \rd, #(\val) & 0xffff |
| .if (\val) >> 16 |
| movt \rd, #(\val) >> 16 |
| .endif |
| #else |
| ldr \rd, =\val |
| #endif |
| .endm |
| |
| .macro movrel rd, val |
| #if HAVE_ARMV6T2 && !CONFIG_PIC && !defined(__APPLE__) |
| movw \rd, #:lower16:\val |
| movt \rd, #:upper16:\val |
| #else |
| ldr \rd, =\val |
| #endif |
| .endm |
| |
| #if HAVE_VFP_ARGS |
| .eabi_attribute 28, 1 |
| # define VFP |
| # define NOVFP @ |
| #else |
| # define VFP @ |
| # define NOVFP |
| #endif |
| |
| #define GLUE(a, b) a ## b |
| #define JOIN(a, b) GLUE(a, b) |
| #define X(s) JOIN(EXTERN_ASM, s) |