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From 942cdf02caef0ea4fe257cf5898754b9b1897c4a 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 05:58:14 -0500
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Subject: [PATCH] PowerPC: multiarch strchrnul for PowerPC64
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commit 9ee2969b057862443b81789b56a61514edf34779
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Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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Date: Fri Dec 13 14:50:26 2013 -0500
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Added sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c and
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string/strchrnul.c apart from original commit.
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---
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string/strchrnul.c | 6 +++-
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.../powerpc32/power4/multiarch/strchrnul-ppc32.c | 28 ++++++++++++++++
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sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 +-
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.../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 +++++
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.../powerpc/powerpc64/multiarch/strchrnul-power7.S | 38 ++++++++++++++++++++++
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.../powerpc/powerpc64/multiarch/strchrnul-ppc64.c | 19 +++++++++++
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sysdeps/powerpc/powerpc64/multiarch/strchrnul.c | 37 +++++++++++++++++++++
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7 files changed, 137 insertions(+), 2 deletions(-)
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create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchrnul-power7.S
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchrnul-ppc64.c
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
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diff --git glibc-2.17-c758a686/string/strchrnul.c glibc-2.17-c758a686/string/strchrnul.c
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index 0db5e23..39540a3 100644
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--- glibc-2.17-c758a686/string/strchrnul.c
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+++ glibc-2.17-c758a686/string/strchrnul.c
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@@ -27,9 +27,13 @@
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#undef __strchrnul
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#undef strchrnul
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+#ifndef STRCHRNUL
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+# define STRCHRNUL __strchrnul
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+#endif
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+
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/* Find the first occurrence of C in S or the final NUL byte. */
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char *
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-__strchrnul (s, c_in)
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+STRCHRNUL (s, c_in)
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const char *s;
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int c_in;
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{
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c
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new file mode 100644
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index 0000000..950643a
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c
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@@ -0,0 +1,28 @@
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+/* PowerPC32 default implementation of strchrnul.
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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 <string.h>
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+
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+#define STRCHRNUL __strchrnul_ppc
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+
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+#undef weak_alias
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+#define weak_alias(a,b )
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+
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+extern __typeof (strchrnul) __strchrnul_ppc attribute_hidden;
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+
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+#include <string/strchrnul.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 f7c5853..15b86bd 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 +8,8 @@ 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 strchr-power7 strchr-ppc64
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+ strncmp-power4 strncmp-ppc64 strchr-power7 strchr-ppc64 \
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+ strchrnul-power7 strchrnul-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 3b005ea..9e3b89d 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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@@ -94,6 +94,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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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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+
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+ /* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c. */
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+ IFUNC_IMPL (i, name, strchrnul,
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+ IFUNC_IMPL_ADD (array, i, strchrnul,
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+ hwcap & PPC_FEATURE_HAS_VSX,
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+ __strchrnul_power7)
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+ IFUNC_IMPL_ADD (array, i, strchrnul, 1,
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+ __strchrnul_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/strchrnul-power7.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-power7.S
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new file mode 100644
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index 0000000..87d7c03
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-power7.S
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@@ -0,0 +1,38 @@
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+/* Optimized strchrnul 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(__strchrnul_power7) \
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+ .align ALIGNARG(2); \
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+ BODY_LABEL(__strchrnul_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(__strchrnul_power7) \
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+ END_2(__strchrnul_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/strchrnul.S>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-ppc64.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-ppc64.c
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new file mode 100644
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index 0000000..a76b335
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-ppc64.c
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@@ -0,0 +1,19 @@
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+/* PowerPC64 default implementation of strchrnul.
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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/powerpc32/power4/multiarch/strchrnul-ppc32.c>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
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new file mode 100644
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index 0000000..dab1cbf
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
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@@ -0,0 +1,37 @@
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+/* Multiple versions of strchrnul.
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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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+#ifndef 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 (__strchrnul) __strchrnul_ppc attribute_hidden;
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+extern __typeof (__strchrnul) __strchrnul_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 (__strchrnul,
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+ (hwcap & PPC_FEATURE_HAS_VSX)
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+ ? __strchrnul_power7
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+ : __strchrnul_ppc);
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+
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+weak_alias (__strchrnul, strchrnul)
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+#else
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+#include <string/strchrnul.c>
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+#endif
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--
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1.8.3.1
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