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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-10-14 08:31:17 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-12-06 05:47:01 -0600
commita19e01a355f1ffbb839b4d367307e34bad7f4df8 (patch)
tree4fac41fe9bea80947c604910b9e75b911067bd56 /sysdeps/powerpc/powerpc32
parentae9cf7a2e89aa4b4646b66dd32739409a46c857c (diff)
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PowerPC: multiarch strncmp for PowerPC32
Diffstat (limited to 'sysdeps/powerpc/powerpc32')
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/Makefile2
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c7
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S38
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S40
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c35
5 files changed, 121 insertions, 1 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
index b84f867f01..d82f6915af 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
@@ -5,5 +5,5 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
bzero-ppc32 mempcpy-power7 mempcpy-ppc32 memchr-power7 \
memchr-ppc32 memrchr-power7 memrchr-ppc32 rawmemchr-power7 \
rawmemchr-ppc32 strlen-power7 strlen-ppc32 strnlen-power7 \
- strnlen-ppc32
+ strnlen-ppc32 strncmp-power7 strncmp-ppc32
endif
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
index b2c6691c96..a964881900 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
@@ -88,6 +88,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__strnlen_power7)
IFUNC_IMPL_ADD (array, i, strnlen, 1,
__strnlen_ppc))
+
+ /* Support sysdeps/powerpc/powerpc32/multiarch/strncmp.c. */
+ IFUNC_IMPL (i, name, strncmp,
+ IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
+ __strncmp_power7)
+ IFUNC_IMPL_ADD (array, i, strncmp, 1,
+ __strncmp_ppc))
#endif
/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c. */
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S
new file mode 100644
index 0000000000..c9240e55be
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S
@@ -0,0 +1,38 @@
+/* Optimized strcmp implementation for POWER7/PowerPC32.
+ 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 <sysdep.h>
+
+#undef EALIGN
+#define EALIGN(name, alignt, words) \
+ .globl C_SYMBOL_NAME(__strncmp_power7); \
+ .type C_SYMBOL_NAME(__strncmp_power7),@function; \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ C_LABEL(__strncmp_power7) \
+ cfi_startproc;
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ ASM_SIZE_DIRECTIVE(__strncmp_power7)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc32/power7/strncmp.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S
new file mode 100644
index 0000000000..bd573bbfa9
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S
@@ -0,0 +1,40 @@
+/* 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 <sysdep.h>
+
+#if defined SHARED && !defined NOT_IN_libc
+# undef EALIGN
+# define EALIGN(name, alignt, words) \
+ .globl C_SYMBOL_NAME(__strncmp_ppc); \
+ .type C_SYMBOL_NAME(__strncmp_ppc),@function; \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ C_LABEL(__strncmp_ppc) \
+ cfi_startproc;
+
+# undef END
+# define END(name) \
+ cfi_endproc; \
+ ASM_SIZE_DIRECTIVE(__strncmp_ppc)
+
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_strncmp; __GI_strncmp = __strncmp_ppc
+#endif
+
+#include <sysdeps/powerpc/powerpc32/power4/strncmp.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c
new file mode 100644
index 0000000000..5dea0769f7
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c
@@ -0,0 +1,35 @@
+/* Multiple versions of strncmp.
+ 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/>. */
+
+/* Define multiple versions only for definition in libc. */
+#if defined SHARED && !defined NOT_IN_libc
+# include <string.h>
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+extern __typeof (strncmp) __strncmp_ppc attribute_hidden;
+extern __typeof (strncmp) __strncmp_power4 attribute_hidden;
+extern __typeof (strncmp) __strncmp_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+libc_ifunc (strncmp,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __strncmp_power7
+ : __strncmp_ppc);
+#endif