2 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
4 * This file is part of Libav.
6 * Libav 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 * Libav 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 Libav; 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 HAVE_AS_ARCH_DIRECTIVE
60 #if HAVE_AS_OBJECT_ARCH
61 ELF .object_arch armv4
66 ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
67 ELF .eabi_attribute 12, 0 @ suppress Tag_Advanced_SIMD_arch
70 ELF .eabi_attribute 10, 0 @ suppress Tag_FP_arch
75 ELF .eabi_attribute 25, 1 @ Tag_ABI_align_preserved
76 ELF .section .note.GNU-stack,"",%progbits @ Mark stack as non-executable
78 .macro function name, export=0, align=2
85 put_pic %(.Lpic_idx - 1)
91 ELF .size \name, . - \name
98 .global EXTERN_ASM\name
99 ELF .type EXTERN_ASM\name, %function
100 FUNC .func EXTERN_ASM\name
103 ELF .type \name, %function
109 .macro const name, align=2, relocate=0
111 ELF .size \name, . - \name
114 #if HAVE_SECTION_DATA_REL_RO
116 .section .data.rel.ro
120 #elif !defined(__MACH__)
129 #if !HAVE_ARMV6T2_EXTERNAL
137 #if HAVE_ARMV6T2_EXTERNAL
138 movw \rd, #(\val) & 0xffff
140 movt \rd, #(\val) >> 16
151 .macro do_def_pic num, val, label
163 .macro def_pic val, label
165 do_def_pic %.Lpic_idx, \val, \label
167 .set .Lpic_idx, .Lpic_idx + 1
170 .macro ldpic rd, val, indir=0
180 def_pic \val - (.Lpic\@ + (8 >> CONFIG_THUMB)), .Lpicoff\@
183 .macro movrel rd, val
186 #elif HAVE_ARMV6T2_EXTERNAL && !defined(__APPLE__)
187 movw \rd, #:lower16:\val
188 movt \rd, #:upper16:\val
194 .macro movrelx rd, val, gp
196 .error "movrelx needs two distinct registers"
199 .warning "movrelx rd=\rd without explicit set gp"
202 .warning "movrelx rd=\rd without explicit set gp"
204 #if CONFIG_PIC && defined(__ELF__)
210 ldpic gp, _GLOBAL_OFFSET_TABLE_
213 ldpic gp, _GLOBAL_OFFSET_TABLE_
218 def_pic \val(GOT), .Lpicoff\@
219 #elif CONFIG_PIC && defined(__APPLE__)
220 ldpic \rd, .Lpic\@, indir=1
221 .non_lazy_symbol_pointer
223 .indirect_symbol \val
231 .macro add_sh rd, rn, rm, sh:vararg
232 A add \rd, \rn, \rm, \sh
237 .macro ldr_pre rt, rn, rm:vararg
238 A ldr \rt, [\rn, \rm]!
243 .macro ldr_dpre rt, rn, rm:vararg
244 A ldr \rt, [\rn, -\rm]!
249 .macro ldr_nreg rt, rn, rm:vararg
250 A ldr \rt, [\rn, -\rm]
255 .macro ldr_post rt, rn, rm:vararg
256 A ldr \rt, [\rn], \rm
261 .macro ldrc_pre cc, rt, rn, rm:vararg
262 A ldr\cc \rt, [\rn, \rm]!
264 T add\cc \rn, \rn, \rm
268 .macro ldrd_reg rt, rt2, rn, rm
269 A ldrd \rt, \rt2, [\rn, \rm]
271 T ldrd \rt, \rt2, [\rt]
274 .macro ldrd_post rt, rt2, rn, rm
275 A ldrd \rt, \rt2, [\rn], \rm
276 T ldrd \rt, \rt2, [\rn]
280 .macro ldrh_pre rt, rn, rm
281 A ldrh \rt, [\rn, \rm]!
286 .macro ldrh_dpre rt, rn, rm
287 A ldrh \rt, [\rn, -\rm]!
292 .macro ldrh_post rt, rn, rm
293 A ldrh \rt, [\rn], \rm
298 .macro ldrb_post rt, rn, rm
299 A ldrb \rt, [\rn], \rm
304 .macro str_post rt, rn, rm:vararg
305 A str \rt, [\rn], \rm
310 .macro strb_post rt, rn, rm:vararg
311 A strb \rt, [\rn], \rm
316 .macro strd_post rt, rt2, rn, rm
317 A strd \rt, \rt2, [\rn], \rm
318 T strd \rt, \rt2, [\rn]
322 .macro strh_pre rt, rn, rm
323 A strh \rt, [\rn, \rm]!
328 .macro strh_dpre rt, rn, rm
329 A strh \rt, [\rn, -\rm]!
334 .macro strh_post rt, rn, rm
335 A strh \rt, [\rn], \rm
340 .macro strh_dpost rt, rn, rm
341 A strh \rt, [\rn], -\rm
347 ELF .eabi_attribute 28, 1
355 #define GLUE(a, b) a ## b
356 #define JOIN(a, b) GLUE(a, b)
357 #define X(s) JOIN(EXTERN_ASM, s)