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89 lines
2.1 KiB
89 lines
2.1 KiB
/* |
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* Copyright (c) 2008 Mans Rullgard <mans@mansr.com> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "config.h" |
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#ifdef __ELF__ |
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# define ELF |
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#else |
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# define ELF # |
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#endif |
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#if HAVE_AS_FUNC |
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# define FUNC |
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#else |
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# define FUNC # |
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#endif |
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.macro function name, export=0, align=2 |
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.macro endfunc |
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ELF .size \name, . - \name |
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FUNC .endfunc |
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.purgem endfunc |
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.endm |
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.text |
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.align \align |
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.if \export |
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.global EXTERN_ASM\name |
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ELF .type EXTERN_ASM\name, %function |
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FUNC .func EXTERN_ASM\name |
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EXTERN_ASM\name: |
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.else |
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ELF .type \name, %function |
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FUNC .func \name |
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\name: |
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.endif |
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.endm |
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.macro const name, align=2, relocate=0 |
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.macro endconst |
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ELF .size \name, . - \name |
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.purgem endconst |
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.endm |
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#if HAVE_SECTION_DATA_REL_RO |
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.if \relocate |
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.section .data.rel.ro |
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.else |
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.section .rodata |
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.endif |
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#elif !defined(__MACH__) |
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.section .rodata |
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#else |
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.const_data |
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#endif |
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.align \align |
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\name: |
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.endm |
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.macro movrel rd, val |
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#if CONFIG_PIC && defined(__APPLE__) |
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adrp \rd, \val@PAGE |
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add \rd, \rd, \val@PAGEOFF |
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#elif CONFIG_PIC |
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adrp \rd, \val |
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add \rd, \rd, :lo12:\val |
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#else |
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ldr \rd, =\val |
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#endif |
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.endm |
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#define GLUE(a, b) a ## b |
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#define JOIN(a, b) GLUE(a, b) |
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#define X(s) JOIN(EXTERN_ASM, s)
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