diff options
Diffstat (limited to 'sysdeps/arm/armv7/multiarch/memchr.S')
-rw-r--r-- | sysdeps/arm/armv7/multiarch/memchr.S | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/arm/armv7/multiarch/memchr.S b/sysdeps/arm/armv7/multiarch/memchr.S new file mode 100644 index 0000000000..8e8097abd5 --- /dev/null +++ b/sysdeps/arm/armv7/multiarch/memchr.S @@ -0,0 +1,59 @@ +/* Multiple versions of memchr + All versions must be listed in ifunc-impl-list.c. + Copyright (C) 2013-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include <rtld-global-offsets.h> + +#if IS_IN (libc) +/* Under __ARM_NEON__, memchr_neon.S defines the name memchr. */ +# ifndef __ARM_NEON__ + .text + .arm +ENTRY(memchr) + .type memchr, %gnu_indirect_function + ldr r1, .Lmemchr_noneon + tst r0, #HWCAP_ARM_NEON + ldrne r1, .Lmemchr_neon +1: + add r0, r1, pc + DO_RET(lr) + +.Lmemchr_noneon: + .long C_SYMBOL_NAME(__memchr_noneon) - 1b - 8 +.Lmemchr_neon: + .long C_SYMBOL_NAME(__memchr_neon) - 1b - 8 + +END(memchr) + +libc_hidden_builtin_def (memchr) +# endif /* Not __ARM_NEON__. */ +libc_hidden_def (__memchr_noneon) + +# undef libc_hidden_builtin_def +# define libc_hidden_builtin_def(name) +# undef weak_alias +# define weak_alias(x, y) +# undef libc_hidden_def +# define libc_hidden_def(name) + +# define memchr __memchr_noneon + +#endif + +#include "memchr_impl.S" |