From fc11ff8d0acebbf0802854156d45cb1d8bb7c079 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Fri, 4 Aug 2017 12:27:00 -0700 Subject: x86-64: Use IFUNC memcpy and mempcpy in libc.a Since apply_irel is called before memcpy and mempcpy are called, we can use IFUNC memcpy and mempcpy in libc.a. * sysdeps/x86_64/memmove.S (MEMCPY_SYMBOL): Don't check SHARED. (MEMPCPY_SYMBOL): Likewise. * sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Test memcpy and mempcpy in libc.a. * sysdeps/x86_64/multiarch/memcpy-ssse3-back.S: Also include in libc.a. * sysdeps/x86_64/multiarch/memcpy-ssse3.S: Likewise. * sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S: Likewise. * sysdeps/x86_64/multiarch/memcpy.c: Also include in libc.a. (__hidden_ver1): Don't use in libc.a. * sysdeps/x86_64/multiarch/memmove-sse2-unaligned-erms.S (__mempcpy): Don't create a weak alias in libc.a. * sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S: Support libc.a. * sysdeps/x86_64/multiarch/mempcpy.c: Also include in libc.a. (__hidden_ver1): Don't use in libc.a. --- sysdeps/x86_64/multiarch/ifunc-impl-list.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sysdeps/x86_64/multiarch/ifunc-impl-list.c') diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c index b761e70a2e..df5ca4c65b 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -447,6 +447,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __memcpy_chk_sse2_unaligned_erms) IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1, __memcpy_chk_erms)) +#endif /* Support sysdeps/x86_64/multiarch/memcpy.c. */ IFUNC_IMPL (i, name, memcpy, @@ -474,6 +475,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __memcpy_sse2_unaligned_erms) IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_erms)) +#ifdef SHARED /* Support sysdeps/x86_64/multiarch/mempcpy_chk.c. */ IFUNC_IMPL (i, name, __mempcpy_chk, IFUNC_IMPL_ADD (array, i, __mempcpy_chk, @@ -503,6 +505,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __mempcpy_chk_sse2_unaligned_erms) IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1, __mempcpy_chk_erms)) +#endif /* Support sysdeps/x86_64/multiarch/mempcpy.c. */ IFUNC_IMPL (i, name, mempcpy, @@ -539,6 +542,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __strncmp_ssse3) IFUNC_IMPL_ADD (array, i, strncmp, 1, __strncmp_sse2)) +#ifdef SHARED /* Support sysdeps/x86_64/multiarch/wmemset_chk.c. */ IFUNC_IMPL (i, name, __wmemset_chk, IFUNC_IMPL_ADD (array, i, __wmemset_chk, 1, -- cgit 1.4.1