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author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2013-12-13 14:31:41 -0500 |
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committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2013-12-13 14:31:41 -0500 |
commit | b5beafbceec80b5a33d3383dde88196afc966e67 (patch) | |
tree | 620c6df2686c25c45bd4d3df3f7313582d07da27 /sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | |
parent | 5e6a4d4b9eb579c5ca606c0eed1f2f40e405a5f1 (diff) | |
download | glibc-b5beafbceec80b5a33d3383dde88196afc966e67.tar.gz glibc-b5beafbceec80b5a33d3383dde88196afc966e67.tar.xz glibc-b5beafbceec80b5a33d3383dde88196afc966e67.zip |
PowerPC: multiarch memcpy for PowerPC64
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c')
-rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c new file mode 100644 index 0000000000..034e551d67 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c @@ -0,0 +1,66 @@ +/* Enumerate available IFUNC implementations of a function. PowerPC64 version. + Copyright (C) 2013 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 <assert.h> +#include <string.h> +#include <wchar.h> +#include <ldsodefs.h> +#include <ifunc-impl-list.h> + +/* Maximum number of IFUNC implementations. */ +#define MAX_IFUNC 6 + +size_t +__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, + size_t max) +{ + assert (max >= MAX_IFUNC); + + size_t i = 0; + + unsigned long int hwcap = GLRO(dl_hwcap); + /* hwcap contains only the latest supported ISA, the code checks which is + and fills the previous supported ones. */ + if (hwcap & PPC_FEATURE_ARCH_2_06) + hwcap |= PPC_FEATURE_ARCH_2_05 | PPC_FEATURE_POWER5_PLUS | + PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4; + else if (hwcap & PPC_FEATURE_ARCH_2_05) + hwcap |= PPC_FEATURE_POWER5_PLUS | PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4; + else if (hwcap & PPC_FEATURE_POWER5_PLUS) + hwcap |= PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4; + else if (hwcap & PPC_FEATURE_POWER5) + hwcap |= PPC_FEATURE_POWER4; + +#ifdef SHARED + /* Support sysdeps/powerpc/powerpc64/multiarch/memcpy.c. */ + IFUNC_IMPL (i, name, memcpy, + IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX, + __memcpy_power7) + IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06, + __memcpy_a2) + IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05, + __memcpy_power6) + IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE, + __memcpy_cell) + IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_POWER4, + __memcpy_power4) + IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc)) +#endif + + return i; +} |