2 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
52 #if HAVE_AS_OBJECT_ARCH
53 ELF .object_arch armv4
58 ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
59 ELF .eabi_attribute 12, 0 @ suppress Tag_Advanced_SIMD_arch
62 ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
67 ELF .eabi_attribute 25, 1 @ Tag_ABI_align_preserved
68 ELF .section .note.GNU-stack,"",%progbits @ Mark stack as non-executable
70 .macro function name, export=0, align=2
77 put_pic %(.Lpic_idx - 1)
80 ELF .size \name, . - \name
87 .global EXTERN_ASM\name
88 ELF .type EXTERN_ASM\name, %function
89 FUNC .func EXTERN_ASM\name
92 ELF .type \name, %function
98 .macro const name, align=2, relocate=0
100 ELF .size \name, . - \name
103 .if HAVE_SECTION_DATA_REL_RO && \relocate
104 .section .data.rel.ro
112 #if !HAVE_ARMV6T2_EXTERNAL
120 #if HAVE_ARMV6T2_EXTERNAL
121 movw \rd, #(\val) & 0xffff
123 movt \rd, #(\val) >> 16
134 .macro do_def_pic num, val, label
146 .macro def_pic val, label
148 do_def_pic %.Lpic_idx, \val, \label
150 .set .Lpic_idx, .Lpic_idx + 1
153 .macro ldpic rd, val, indir=0
163 def_pic \val - (.Lpic\@ + (8 >> CONFIG_THUMB)), .Lpicoff\@
166 .macro movrel rd, val
169 #elif HAVE_ARMV6T2_EXTERNAL && !defined(__APPLE__)
170 movw \rd, #:lower16:\val
171 movt \rd, #:upper16:\val
177 .macro movrelx rd, val, gp
178 #if CONFIG_PIC && defined(__ELF__)
184 ldpic gp, _GLOBAL_OFFSET_TABLE_
187 ldpic gp, _GLOBAL_OFFSET_TABLE_
192 def_pic \val(GOT), .Lpicoff\@
193 #elif CONFIG_PIC && defined(__APPLE__)
194 ldpic \rd, .Lpic\@, indir=1
195 .non_lazy_symbol_pointer
197 .indirect_symbol \val
205 .macro add_sh rd, rn, rm, sh:vararg
206 A add \rd, \rn, \rm, \sh
211 .macro ldr_pre rt, rn, rm:vararg
212 A ldr \rt, [\rn, \rm]!
217 .macro ldr_dpre rt, rn, rm:vararg
218 A ldr \rt, [\rn, -\rm]!
223 .macro ldr_nreg rt, rn, rm:vararg
224 A ldr \rt, [\rn, -\rm]
229 .macro ldr_post rt, rn, rm:vararg
230 A ldr \rt, [\rn], \rm
235 .macro ldrc_pre cc, rt, rn, rm:vararg
236 A ldr\cc \rt, [\rn, \rm]!
238 T add\cc \rn, \rn, \rm
242 .macro ldrd_reg rt, rt2, rn, rm
243 A ldrd \rt, \rt2, [\rn, \rm]
245 T ldrd \rt, \rt2, [\rt]
248 .macro ldrd_post rt, rt2, rn, rm
249 A ldrd \rt, \rt2, [\rn], \rm
250 T ldrd \rt, \rt2, [\rn]
254 .macro ldrh_pre rt, rn, rm
255 A ldrh \rt, [\rn, \rm]!
260 .macro ldrh_dpre rt, rn, rm
261 A ldrh \rt, [\rn, -\rm]!
266 .macro ldrh_post rt, rn, rm
267 A ldrh \rt, [\rn], \rm
272 .macro ldrb_post rt, rn, rm
273 A ldrb \rt, [\rn], \rm
278 .macro str_post rt, rn, rm:vararg
279 A str \rt, [\rn], \rm
284 .macro strb_post rt, rn, rm:vararg
285 A strb \rt, [\rn], \rm
290 .macro strd_post rt, rt2, rn, rm
291 A strd \rt, \rt2, [\rn], \rm
292 T strd \rt, \rt2, [\rn]
296 .macro strh_pre rt, rn, rm
297 A strh \rt, [\rn, \rm]!
302 .macro strh_dpre rt, rn, rm
303 A strh \rt, [\rn, -\rm]!
308 .macro strh_post rt, rn, rm
309 A strh \rt, [\rn], \rm
314 .macro strh_dpost rt, rn, rm
315 A strh \rt, [\rn], -\rm
321 ELF .eabi_attribute 28, 1
329 #define GLUE(a, b) a ## b
330 #define JOIN(a, b) GLUE(a, b)
331 #define X(s) JOIN(EXTERN_ASM, s)