2013-12-13 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
+ * string/memcmp.c (memcmp): Using macro to redefine symbol name.
+ * sysdeps/powerpc/powerpc64/multiarch/Makefile: Add memcpy multiarch
+ implementations.
+ * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+ (__libc_ifunc_impl_list): Likewise.
+ * sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S: New file.
+ * sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S: New file.
+ * sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c: New file.
+ * sysdeps/powerpc/powerpc64/multiarch/memcmp.c: New file: multiarch
+ memcmp for PPC64.
+
+2013-12-13 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
+
* sysdeps/powerpc/powerpc64/multiarch/Makefile: New file to support
multiarch for POWER/PPC64.
* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
#undef memcmp
+#ifndef MEMCMP
+# define MEMCMP memcmp
+#endif
+
#ifdef _LIBC
# include <memcopy.h>
}
int
-memcmp (s1, s2, len)
+MEMCMP (s1, s2, len)
const __ptr_t s1;
const __ptr_t s2;
size_t len;
ifeq ($(subdir),string)
sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
- memcpy-power4 memcpy-ppc64
+ memcpy-power4 memcpy-ppc64 memcmp-power7 memcmp-power4 \
+ memcmp-ppc64
endif
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
#endif
+ /* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */
+ IFUNC_IMPL (i, name, memcmp,
+ IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
+ __memcmp_power7)
+ IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
+ __memcmp_power4)
+ IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
+
return i;
}
--- /dev/null
+/* Optimized memcmp implementation for PowerPC64/POWER4.
+ 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) \
+ .section ".text"; \
+ ENTRY_2(__memcmp_power4) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ BODY_LABEL(__memcmp_power4): \
+ cfi_startproc; \
+ LOCALENTRY(__memcmp_power4)
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ TRACEBACK(__memcmp_power4) \
+ END_2(__memcmp_power4)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+#undef weak_alias
+#define weak_alias(name,alias)
+
+#include <sysdeps/powerpc/powerpc64/power4/memcmp.S>
--- /dev/null
+/* Optimized memcmp implementation for PowerPC64/POWER7.
+ 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) \
+ .section ".text"; \
+ ENTRY_2(__memcmp_power7) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ BODY_LABEL(__memcmp_power7): \
+ cfi_startproc; \
+ LOCALENTRY(__memcmp_power7)
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ TRACEBACK(__memcmp_power7) \
+ END_2(__memcmp_power7)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+#undef weak_alias
+#define weak_alias(name,alias)
+
+#include <sysdeps/powerpc/powerpc64/power7/memcmp.S>
--- /dev/null
+/* 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 <string.h>
+
+#define MEMCMP __memcmp_ppc
+#undef weak_alias
+#define weak_alias(name, aliasname) \
+ extern __typeof (__memcmp_ppc) aliasname \
+ __attribute__ ((weak, alias ("__memcmp_ppc")));
+#if !defined(NOT_IN_libc) && defined(SHARED)
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name) \
+ __hidden_ver1(__memcmp_ppc, __GI_memcmp, __memcmp_ppc);
+#endif
+
+extern __typeof (memcmp) __memcmp_ppc attribute_hidden;
+
+#include <string/memcmp.c>
--- /dev/null
+/* Multiple versions of memcmp. PowerPC64 version.
+ 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. */
+#ifndef NOT_IN_libc
+# include <string.h>
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+extern __typeof (memcmp) __memcmp_ppc attribute_hidden;
+extern __typeof (memcmp) __memcmp_power4 attribute_hidden;
+extern __typeof (memcmp) __memcmp_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+libc_ifunc (memcmp,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __memcmp_power7 :
+ (hwcap & PPC_FEATURE_POWER4)
+ ? __memcmp_power4
+ : __memcmp_ppc);
+#else
+#include <string/memcmp.c>
+#endif
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