diff options
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c')
| -rw-r--r-- | REORG.TODO/sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c b/REORG.TODO/sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c new file mode 100644 index 0000000000..b414ba946b --- /dev/null +++ b/REORG.TODO/sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c @@ -0,0 +1,48 @@ +/* Multiple versions of memcpy. + 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/>. */ + +/* Define multiple versions only for the definition in lib and for + DSO. In static binaries we need memcpy before the initialization + happened. */ +#if defined SHARED && IS_IN (libc) +# undef memcpy +# define memcpy __redirect_memcpy +# include <string.h> +# include <shlib-compat.h> +# include "init-arch.h" + +extern __typeof (memcpy) __memcpy_ppc attribute_hidden; +extern __typeof (memcpy) __memcpy_cell attribute_hidden; +extern __typeof (memcpy) __memcpy_power6 attribute_hidden; +extern __typeof (memcpy) __memcpy_a2 attribute_hidden; +extern __typeof (memcpy) __memcpy_power7 attribute_hidden; +# undef memcpy + +/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle + ifunc symbol properly. */ +libc_ifunc_redirected (__redirect_memcpy, memcpy, + (hwcap & PPC_FEATURE_HAS_VSX) + ? __memcpy_power7 + : (hwcap & PPC_FEATURE_ARCH_2_06) + ? __memcpy_a2 + : (hwcap & PPC_FEATURE_ARCH_2_05) + ? __memcpy_power6 + : (hwcap & PPC_FEATURE_CELL_BE) + ? __memcpy_cell + : __memcpy_ppc); +#endif |