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From 1a5121cbdc34d9f56bb1bbb3f3ce3a90ddc1ff6b Mon Sep 17 00:00:00 2001
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From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
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Date: Wed, 30 Jul 2014 05:55:13 -0500
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Subject: [PATCH] PowerPC: multiarch strchr for PowerPC64
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commit 372dc060e0a25044ba5a797c71fb0ee53921fe47
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Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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Date: Fri Dec 13 14:49:54 2013 -0500
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---
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sysdeps/powerpc/powerpc64/multiarch/Makefile | 2 +-
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.../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 +++++
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sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S | 18 ++++++++++
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.../powerpc/powerpc64/multiarch/strchr-power7.S | 38 ++++++++++++++++++++
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sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S | 41 ++++++++++++++++++++++
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sysdeps/powerpc/powerpc64/multiarch/strchr.c | 35 ++++++++++++++++++
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6 files changed, 141 insertions(+), 1 deletion(-)
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchr.c
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
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index 22baf1c..f7c5853 100644
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--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
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@@ -8,7 +8,7 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \
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strnlen-ppc64 strcasecmp-power7 strcasecmp_l-power7 \
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strncase-power7 strncase_l-power7 strncmp-power7 \
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- strncmp-power4 strncmp-ppc64
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+ strncmp-power4 strncmp-ppc64 strchr-power7 strchr-ppc64
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CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
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CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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index 67f75a5..3b005ea 100644
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--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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@@ -86,6 +86,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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__strncmp_power4)
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IFUNC_IMPL_ADD (array, i, strncmp, 1,
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__strncmp_ppc))
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+
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+ /* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c. */
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+ IFUNC_IMPL (i, name, strchr,
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+ IFUNC_IMPL_ADD (array, i, strchr,
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+ hwcap & PPC_FEATURE_HAS_VSX,
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+ __strchr_power7)
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+ IFUNC_IMPL_ADD (array, i, strchr, 1,
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+ __strchr_ppc))
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#endif
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/* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S
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new file mode 100644
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index 0000000..5c62657
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S
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@@ -0,0 +1,18 @@
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+/* Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdeps/powerpc/powerpc64/strchr.S>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S
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new file mode 100644
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index 0000000..0b2ca42
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S
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@@ -0,0 +1,38 @@
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+/* Optimized strchr implementation for POWER7.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdep.h>
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+
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+#undef ENTRY
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+#define ENTRY(name) \
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+ .section ".text"; \
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+ ENTRY_2(__strchr_power7) \
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+ .align ALIGNARG(2); \
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+ BODY_LABEL(__strchr_power7): \
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+ cfi_startproc;
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+
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+#undef END
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+#define END(name) \
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+ cfi_endproc; \
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+ TRACEBACK(__strchr_power7) \
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+ END_2(__strchr_power7)
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+
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+#undef libc_hidden_builtin_def
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+#define libc_hidden_builtin_def(name)
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+
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+#include <sysdeps/powerpc/powerpc64/power7/strchr.S>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S
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new file mode 100644
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index 0000000..ded9284
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S
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@@ -0,0 +1,41 @@
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+/* PowerPC64 default implementation of strchr.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdep.h>
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+
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+#ifdef SHARED
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+# undef ENTRY
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+# define ENTRY(name) \
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+ .section ".text"; \
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+ ENTRY_2(__strchr_ppc) \
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+ .align ALIGNARG(2); \
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+ BODY_LABEL(__strchr_ppc): \
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+ cfi_startproc;
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+
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+# undef END
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+# define END(name) \
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+ cfi_endproc; \
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+ TRACEBACK(__strchr_ppc) \
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+ END_2(__strchr_ppc)
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+
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+# undef libc_hidden_builtin_def
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+# define libc_hidden_builtin_def(name) \
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+ .globl __GI_strchr; __GI_strchr = __strchr_ppc
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+#endif
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+
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+#include <sysdeps/powerpc/powerpc64/strchr.S>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr.c
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new file mode 100644
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index 0000000..74a9d54
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr.c
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@@ -0,0 +1,35 @@
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+/* Multiple versions of strchr.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+/* Define multiple versions only for definition in libc. */
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+#if defined SHARED && !defined NOT_IN_libc
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+# include <string.h>
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+# include <shlib-compat.h>
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+# include "init-arch.h"
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+
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+extern __typeof (strchr) __strchr_ppc attribute_hidden;
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+extern __typeof (strchr) __strchr_power7 attribute_hidden;
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+
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+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
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+ ifunc symbol properly. */
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+libc_ifunc (strchr,
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+ (hwcap & PPC_FEATURE_HAS_VSX)
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+ ? __strchr_power7
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+ : __strchr_ppc);
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+weak_alias (strchr, index)
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+#endif
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--
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1.8.3.1
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