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
58 #if HAVE_AS_OBJECT_ARCH
59 ELF .object_arch armv4
64 ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
65 ELF .eabi_attribute 12, 0 @ suppress Tag_Advanced_SIMD_arch
68 ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
73 ELF .eabi_attribute 25, 1 @ Tag_ABI_align_preserved
74 ELF .section .note.GNU-stack,"",%progbits @ Mark stack as non-executable
76 .macro function name, export=0, align=2
83 put_pic %(.Lpic_idx - 1)
89 ELF .size \name, . - \name
96 .global EXTERN_ASM\name
97 ELF .type EXTERN_ASM\name, %function
98 FUNC .func EXTERN_ASM\name
101 ELF .type \name, %function
107 .macro const name, align=2, relocate=0
109 ELF .size \name, . - \name
112 .if HAVE_SECTION_DATA_REL_RO && \relocate
113 .section .data.rel.ro
121 #if !HAVE_ARMV6T2_EXTERNAL
129 #if HAVE_ARMV6T2_EXTERNAL
130 movw \rd, #(\val) & 0xffff
132 movt \rd, #(\val) >> 16
143 .macro do_def_pic num, val, label
155 .macro def_pic val, label
157 do_def_pic %.Lpic_idx, \val, \label
159 .set .Lpic_idx, .Lpic_idx + 1
162 .macro ldpic rd, val, indir=0
172 def_pic \val - (.Lpic\@ + (8 >> CONFIG_THUMB)), .Lpicoff\@
175 .macro movrel rd, val
178 #elif HAVE_ARMV6T2_EXTERNAL && !defined(__APPLE__)
179 movw \rd, #:lower16:\val
180 movt \rd, #:upper16:\val
186 .macro movrelx rd, val, gp
188 .error "movrelx needs two distinct registers"
191 .warning "movrelx rd=\rd without explicit set gp"
194 .warning "movrelx rd=\rd without explicit set gp"
196 #if CONFIG_PIC && defined(__ELF__)
202 ldpic gp, _GLOBAL_OFFSET_TABLE_
205 ldpic gp, _GLOBAL_OFFSET_TABLE_
210 def_pic \val(GOT), .Lpicoff\@
211 #elif CONFIG_PIC && defined(__APPLE__)
212 ldpic \rd, .Lpic\@, indir=1
213 .non_lazy_symbol_pointer
215 .indirect_symbol \val
223 .macro add_sh rd, rn, rm, sh:vararg
224 A add \rd, \rn, \rm, \sh
229 .macro ldr_pre rt, rn, rm:vararg
230 A ldr \rt, [\rn, \rm]!
235 .macro ldr_dpre rt, rn, rm:vararg
236 A ldr \rt, [\rn, -\rm]!
241 .macro ldr_nreg rt, rn, rm:vararg
242 A ldr \rt, [\rn, -\rm]
247 .macro ldr_post rt, rn, rm:vararg
248 A ldr \rt, [\rn], \rm
253 .macro ldrc_pre cc, rt, rn, rm:vararg
254 A ldr\cc \rt, [\rn, \rm]!
256 T add\cc \rn, \rn, \rm
260 .macro ldrd_reg rt, rt2, rn, rm
261 A ldrd \rt, \rt2, [\rn, \rm]
263 T ldrd \rt, \rt2, [\rt]
266 .macro ldrd_post rt, rt2, rn, rm
267 A ldrd \rt, \rt2, [\rn], \rm
268 T ldrd \rt, \rt2, [\rn]
272 .macro ldrh_pre rt, rn, rm
273 A ldrh \rt, [\rn, \rm]!
278 .macro ldrh_dpre rt, rn, rm
279 A ldrh \rt, [\rn, -\rm]!
284 .macro ldrh_post rt, rn, rm
285 A ldrh \rt, [\rn], \rm
290 .macro ldrb_post rt, rn, rm
291 A ldrb \rt, [\rn], \rm
296 .macro str_post rt, rn, rm:vararg
297 A str \rt, [\rn], \rm
302 .macro strb_post rt, rn, rm:vararg
303 A strb \rt, [\rn], \rm
308 .macro strd_post rt, rt2, rn, rm
309 A strd \rt, \rt2, [\rn], \rm
310 T strd \rt, \rt2, [\rn]
314 .macro strh_pre rt, rn, rm
315 A strh \rt, [\rn, \rm]!
320 .macro strh_dpre rt, rn, rm
321 A strh \rt, [\rn, -\rm]!
326 .macro strh_post rt, rn, rm
327 A strh \rt, [\rn], \rm
332 .macro strh_dpost rt, rn, rm
333 A strh \rt, [\rn], -\rm
339 ELF .eabi_attribute 28, 1
347 #define GLUE(a, b) a ## b
348 #define JOIN(a, b) GLUE(a, b)
349 #define X(s) JOIN(EXTERN_ASM, s)