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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-10-14 09:14:43 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-12-06 05:47:01 -0600
commitba9641477e4b50c7d2e168653496d0ae830854f3 (patch)
tree929ed958ad38f5132877f420a0cd50c777e6504c /sysdeps
parent31c81aaa01a6033c53b30d3ffa9aa806d10ecdf5 (diff)
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PowerPC: multiarch strchr for PowerPC32
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/Makefile3
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c8
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/rtld-strchr.S18
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/strchr-power7.S39
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/strchr-ppc32.S41
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c35
6 files changed, 143 insertions, 1 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
index 3225d0c4ac..a8ce149899 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
@@ -7,7 +7,8 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
rawmemchr-ppc32 strlen-power7 strlen-ppc32 strnlen-power7 \
strnlen-ppc32 strncmp-power7 strncmp-ppc32 \
strcasecmp-power7 strcasecmp_l-power7 strncase-power7 \
- strncase_l-power7 strchrnul-power7 strchrnul-ppc32
+ strncase_l-power7 strchrnul-power7 strchrnul-ppc32 \
+ strchr-power7 strchr-ppc32
CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
index 018c948ec6..81755e79c4 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
@@ -173,5 +173,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, strchrnul, 1,
__strchrnul_ppc))
+ /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c. */
+ IFUNC_IMPL (i, name, strchr,
+ IFUNC_IMPL_ADD (array, i, strchr,
+ hwcap & PPC_FEATURE_HAS_VSX,
+ __strchr_power7)
+ IFUNC_IMPL_ADD (array, i, strchr, 1,
+ __strchr_ppc))
+
return i;
}
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/rtld-strchr.S b/sysdeps/powerpc/powerpc32/power4/multiarch/rtld-strchr.S
new file mode 100644
index 0000000000..d75786c57f
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/rtld-strchr.S
@@ -0,0 +1,18 @@
+/* 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 <sysdeps/powerpc/powerpc32/strchr.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strchr-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/strchr-power7.S
new file mode 100644
index 0000000000..066b71161f
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strchr-power7.S
@@ -0,0 +1,39 @@
+/* Optimized strchr implementation for PowerPC32/POWER7 using cmpb insn.
+ 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 ENTRY
+#define ENTRY(name) \
+ .globl C_SYMBOL_NAME(__strchr_power7); \
+ .type C_SYMBOL_NAME(__strchr_power7),@function; \
+ C_LABEL(__strchr_power7) \
+ cfi_startproc;
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ ASM_SIZE_DIRECTIVE(__strchr_power7)
+
+#undef weak_alias
+#define weak_alias(name, alias)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc32/power7/strchr.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strchr-ppc32.S b/sysdeps/powerpc/powerpc32/power4/multiarch/strchr-ppc32.S
new file mode 100644
index 0000000000..a71b46a7a4
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strchr-ppc32.S
@@ -0,0 +1,41 @@
+/* PowerPC32 default implementation of strchr.
+ 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>
+
+#ifdef SHARED
+# undef ENTRY
+# define ENTRY(name) \
+ .globl C_SYMBOL_NAME(__strchr_ppc); \
+ .type C_SYMBOL_NAME(__strchr_ppc),@function; \
+ .align ALIGNARG(2); \
+ C_LABEL(__strchr_ppc) \
+ cfi_startproc; \
+ CALL_MCOUNT
+
+# undef END
+# define END(name) \
+ cfi_endproc; \
+ ASM_SIZE_DIRECTIVE(__strchr_ppc) \
+
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_strchr; __GI_strchr = __strchr_ppc
+#endif
+
+#include <sysdeps/powerpc/powerpc32/strchr.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c b/sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c
new file mode 100644
index 0000000000..8a7dc74833
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c
@@ -0,0 +1,35 @@
+/* Multiple versions of strchr.
+ 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 (strchr) __strchr_ppc attribute_hidden;
+extern __typeof (strchr) __strchr_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+libc_ifunc (strchr,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __strchr_power7
+ : __strchr_ppc);
+weak_alias (strchr, index)
+#endif