From patchwork Mon Mar 7 17:36:27 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "H.J. Lu" X-Patchwork-Id: 11241 Received: (qmail 127716 invoked by alias); 7 Mar 2016 17:37:09 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 127609 invoked by uid 89); 7 Mar 2016 17:37:08 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=1.2 required=5.0 tests=AWL, BAYES_50, FREEMAIL_FROM, SPF_SOFTFAIL autolearn=no version=3.3.2 spammy=__mempcpy_ssse3, $16, asm-syntax.h, sk:HIDDEN_ X-HELO: mga14.intel.com X-ExtLoop1: 1 From: "H.J. Lu" To: libc-alpha@sourceware.org Cc: Ondrej Bilka Subject: [PATCH 4/7] Add entry points for __mempcpy_sse2_unaligned and _chk functions Date: Mon, 7 Mar 2016 09:36:27 -0800 Message-Id: <1457372190-12196-5-git-send-email-hjl.tools@gmail.com> In-Reply-To: <1457372190-12196-1-git-send-email-hjl.tools@gmail.com> References: <1457372190-12196-1-git-send-email-hjl.tools@gmail.com> Add entry points for __mempcpy_chk_sse2_unaligned, __mempcpy_sse2_unaligned and __memcpy_chk_sse2_unaligned. [BZ #19776] * sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Test __memcpy_chk_sse2_unaligned, __mempcpy_chk_sse2_unaligned and __mempcpy_sse2_unaligned. * sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S (__mempcpy_chk_sse2_unaligned): New. (__mempcpy_sse2_unaligned): Likewise. (__memcpy_chk_sse2_unaligned): Likewise. (L(start): New label. --- sysdeps/x86_64/multiarch/ifunc-impl-list.c | 6 ++++++ sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S | 20 ++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c index 188b6d3..47ca468 100644 --- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c +++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c @@ -278,6 +278,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, HAS_CPU_FEATURE (SSSE3), __memcpy_chk_ssse3) IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1, + __memcpy_chk_sse2_unaligned) + IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1, __memcpy_chk_sse2)) /* Support sysdeps/x86_64/multiarch/memcpy.S. */ @@ -314,6 +316,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, HAS_CPU_FEATURE (SSSE3), __mempcpy_chk_ssse3) IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1, + __mempcpy_chk_sse2_unaligned) + IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1, __mempcpy_chk_sse2)) /* Support sysdeps/x86_64/multiarch/mempcpy.S. */ @@ -330,6 +334,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __mempcpy_ssse3_back) IFUNC_IMPL_ADD (array, i, mempcpy, HAS_CPU_FEATURE (SSSE3), __mempcpy_ssse3) + IFUNC_IMPL_ADD (array, i, mempcpy, 1, + __mempcpy_sse2_unaligned) IFUNC_IMPL_ADD (array, i, mempcpy, 1, __mempcpy_sse2)) /* Support sysdeps/x86_64/multiarch/strncmp.S. */ diff --git a/sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S b/sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S index 335a498..947c50f 100644 --- a/sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S +++ b/sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S @@ -22,9 +22,29 @@ #include "asm-syntax.h" +# ifdef SHARED +ENTRY (__mempcpy_chk_sse2_unaligned) + cmpq %rdx, %rcx + jb HIDDEN_JUMPTARGET (__chk_fail) +END (__mempcpy_chk_sse2_unaligned) +# endif + +ENTRY (__mempcpy_sse2_unaligned) + mov %rdi, %rax + add %rdx, %rax + jmp L(start) +END (__mempcpy_sse2_unaligned) + +# ifdef SHARED +ENTRY (__memcpy_chk_sse2_unaligned) + cmpq %rdx, %rcx + jb HIDDEN_JUMPTARGET (__chk_fail) +END (__memcpy_chk_sse2_unaligned) +# endif ENTRY(__memcpy_sse2_unaligned) movq %rdi, %rax +L(start): testq %rdx, %rdx je L(return) cmpq $16, %rdx