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
43 #if HAVE_AS_FPU_DIRECTIVE
49 #if CONFIG_THUMB && defined(__APPLE__)
55 #if HAVE_AS_ARCH_DIRECTIVE
66 #if HAVE_AS_OBJECT_ARCH
67 ELF .object_arch armv4
72 ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
73 ELF .eabi_attribute 12, 0 @ suppress Tag_Advanced_SIMD_arch
76 ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
81 ELF .eabi_attribute 25, 1 @ Tag_ABI_align_preserved
82 ELF .section .note.GNU-stack,"",%progbits @ Mark stack as non-executable
84 .macro function name, export=0, align=2
91 put_pic %(.Lpic_idx - 1)
97 ELF .size \name, . - \name
104 .global EXTERN_ASM\name
105 ELF .type EXTERN_ASM\name, %function
106 FUNC .func EXTERN_ASM\name
107 TFUNC .thumb_func EXTERN_ASM\name
110 ELF .type \name, %function
112 TFUNC .thumb_func \name
117 .macro const name, align=2, relocate=0
119 ELF .size \name, . - \name
122 #if HAVE_SECTION_DATA_REL_RO
124 .section .data.rel.ro
128 #elif !defined(__MACH__)
137 #if !HAVE_ARMV6T2_EXTERNAL
145 #if HAVE_ARMV6T2_EXTERNAL
146 movw \rd, #(\val) & 0xffff
148 movt \rd, #(\val) >> 16
159 .macro do_def_pic num, val, label
171 .macro def_pic val, label
173 do_def_pic %.Lpic_idx, \val, \label
175 .set .Lpic_idx, .Lpic_idx + 1
178 .macro ldpic rd, val, indir=0
188 def_pic \val - (.Lpic\@ + (8 >> CONFIG_THUMB)), .Lpicoff\@
191 .macro movrel rd, val
194 #elif HAVE_ARMV6T2_EXTERNAL && !defined(__APPLE__)
195 movw \rd, #:lower16:\val
196 movt \rd, #:upper16:\val
202 .macro movrelx rd, val, gp
204 .error "movrelx needs two distinct registers"
207 .warning "movrelx rd=\rd without explicit set gp"
210 .warning "movrelx rd=\rd without explicit set gp"
212 #if CONFIG_PIC && defined(__ELF__)
218 ldpic gp, _GLOBAL_OFFSET_TABLE_
221 ldpic gp, _GLOBAL_OFFSET_TABLE_
226 def_pic \val(GOT), .Lpicoff\@
227 #elif CONFIG_PIC && defined(__APPLE__)
228 ldpic \rd, .Lpic\@, indir=1
229 .non_lazy_symbol_pointer
231 .indirect_symbol \val
239 .macro add_sh rd, rn, rm, sh:vararg
240 A add \rd, \rn, \rm, \sh
245 .macro ldr_pre rt, rn, rm:vararg
246 A ldr \rt, [\rn, \rm]!
251 .macro ldr_dpre rt, rn, rm:vararg
252 A ldr \rt, [\rn, -\rm]!
257 .macro ldr_nreg rt, rn, rm:vararg
258 A ldr \rt, [\rn, -\rm]
263 .macro ldr_post rt, rn, rm:vararg
264 A ldr \rt, [\rn], \rm
269 .macro ldrc_pre cc, rt, rn, rm:vararg
270 A ldr\cc \rt, [\rn, \rm]!
272 T add\cc \rn, \rn, \rm
276 .macro ldrd_reg rt, rt2, rn, rm
277 A ldrd \rt, \rt2, [\rn, \rm]
279 T ldrd \rt, \rt2, [\rt]
282 .macro ldrd_post rt, rt2, rn, rm
283 A ldrd \rt, \rt2, [\rn], \rm
284 T ldrd \rt, \rt2, [\rn]
288 .macro ldrh_pre rt, rn, rm
289 A ldrh \rt, [\rn, \rm]!
294 .macro ldrh_dpre rt, rn, rm
295 A ldrh \rt, [\rn, -\rm]!
300 .macro ldrh_post rt, rn, rm
301 A ldrh \rt, [\rn], \rm
306 .macro ldrb_post rt, rn, rm
307 A ldrb \rt, [\rn], \rm
312 .macro str_post rt, rn, rm:vararg
313 A str \rt, [\rn], \rm
318 .macro strb_post rt, rn, rm:vararg
319 A strb \rt, [\rn], \rm
324 .macro strd_post rt, rt2, rn, rm
325 A strd \rt, \rt2, [\rn], \rm
326 T strd \rt, \rt2, [\rn]
330 .macro strh_pre rt, rn, rm
331 A strh \rt, [\rn, \rm]!
336 .macro strh_dpre rt, rn, rm
337 A strh \rt, [\rn, -\rm]!
342 .macro strh_post rt, rn, rm
343 A strh \rt, [\rn], \rm
348 .macro strh_dpost rt, rn, rm
349 A strh \rt, [\rn], -\rm
355 ELF .eabi_attribute 28, 1
363 #define GLUE(a, b) a ## b
364 #define JOIN(a, b) GLUE(a, b)
365 #define X(s) JOIN(EXTERN_ASM, s)