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[PATCH 04/21] PowerPC: multiarch memset/bzero for PowerPC64
- From: Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>
- To: "GNU C. Library" <libc-alpha at sourceware dot org>
- Date: Tue, 10 Dec 2013 10:29:29 -0200
- Subject: [PATCH 04/21] PowerPC: multiarch memset/bzero for PowerPC64
- Authentication-results: sourceware.org; auth=none
- References: <52A700A8 dot 3020307 at linux dot vnet dot ibm dot com>
2013-12-09 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64/memset.S (NO_BZERO_IMPL): Add macro to
avoid cretion of __bzero symbol.
* sysdeps/powerpc/powerpc64/power4/memset.S (NO_BZERO_IMPL):
Likewise.
* sysdeps/powerpc/powerpc64/power6/memset.S (NO_BZERO_IMPL):
Likewise.
* sysdeps/powerpc/powerpc64/power7/memset.S (NO_BZERO_IMPL):
Likewise.
* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add memset/bzero
multiarch implementations.
* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Likewise.
* sysdeps/powerpc/powerpc64/multiarch/bzero-power4.S: New file.
* sysdeps/powerpc/powerpc64/multiarch/bzero-power6.S: New file.
* sysdeps/powerpc/powerpc64/multiarch/bzero-power7.S: New file.
* sysdeps/powerpc/powerpc64/multiarch/bzero.c: New file: multiarch
bzero for PPC32.
* sysdeps/powerpc/powerpc64/multiarch/memset-power4.S: New file.
* sysdeps/powerpc/powerpc64/multiarch/memset-power6.S: New file.
* sysdeps/powerpc/powerpc64/multiarch/memset-power7.S: New file.
* sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S: New file.
* sysdeps/powerpc/powerpc64/multiarch/memset.c: New file: multiarch
memset for PPC64.
* sysdeps/powerpc/powerpc64/multiarch/rtld-memset.c: New file.
--
diff --git a/sysdeps/powerpc/powerpc64/memset.S b/sysdeps/powerpc/powerpc64/memset.S
index 1027a59..22c7d4e 100644
--- a/sysdeps/powerpc/powerpc64/memset.S
+++ b/sysdeps/powerpc/powerpc64/memset.S
@@ -247,6 +247,7 @@ L(medium_28t):
END_GEN_TB (memset,TB_TOCLESS)
libc_hidden_builtin_def (memset)
+#ifndef NO_BZERO_IMPL
/* Copied from bzero.S to prevent the linker from inserting a stub
between bzero and memset. */
ENTRY (__bzero)
@@ -257,3 +258,4 @@ ENTRY (__bzero)
END_GEN_TB (__bzero,TB_TOCLESS)
weak_alias (__bzero, bzero)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index 4dd2f38..2d06551 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -1,5 +1,6 @@
ifeq ($(subdir),string)
sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
memcpy-power4 memcpy-ppc64 memcmp-power7 memcmp-power4 \
- memcmp-ppc64
+ memcmp-ppc64 memset-power7 memset-power6 memset-power4 \
+ memset-ppc64 bzero-power4 bzero-power6 bzero-power7
endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/bzero-power4.S b/sysdeps/powerpc/powerpc64/multiarch/bzero-power4.S
new file mode 100644
index 0000000..cf58fc5
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/bzero-power4.S
@@ -0,0 +1,26 @@
+/* Optimized bzero 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>
+
+ENTRY (__bzero_power4)
+ CALL_MCOUNT 3
+ mr r5,r4
+ li r4,0
+ b __memset_power4
+END_GEN_TB (__bzero_power4,TB_TOCLESS)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/bzero-power6.S b/sysdeps/powerpc/powerpc64/multiarch/bzero-power6.S
new file mode 100644
index 0000000..ee3b919
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/bzero-power6.S
@@ -0,0 +1,26 @@
+/* Optimized bzero implementation for PowerPC64/POWER6.
+ 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>
+
+ENTRY (__bzero_power6)
+ CALL_MCOUNT 3
+ mr r5,r4
+ li r4,0
+ b __memset_power6
+END_GEN_TB (__bzero_power6,TB_TOCLESS)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/bzero-power7.S b/sysdeps/powerpc/powerpc64/multiarch/bzero-power7.S
new file mode 100644
index 0000000..7abc6db
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/bzero-power7.S
@@ -0,0 +1,26 @@
+/* Optimized bzero 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>
+
+ENTRY (__bzero_power7)
+ CALL_MCOUNT 3
+ mr r5,r4
+ li r4,0
+ b __memset_power7
+END_GEN_TB (__bzero_power7,TB_TOCLESS)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/bzero.c b/sysdeps/powerpc/powerpc64/multiarch/bzero.c
new file mode 100644
index 0000000..d7b3aaa
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/bzero.c
@@ -0,0 +1,40 @@
+/* Multiple versions of bzero. 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 <strings.h>
+# include "init-arch.h"
+
+extern __typeof (bzero) __bzero_ppc attribute_hidden;
+extern __typeof (bzero) __bzero_power4 attribute_hidden;
+extern __typeof (bzero) __bzero_power6 attribute_hidden;
+extern __typeof (bzero) __bzero_power7 attribute_hidden;
+
+libc_ifunc (__bzero,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __bzero_power7 :
+ (hwcap & PPC_FEATURE_ARCH_2_05)
+ ? __bzero_power6 :
+ (hwcap & PPC_FEATURE_POWER4)
+ ? __bzero_power4
+ : __bzero_ppc);
+
+weak_alias (__bzero, bzero)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 338a71c..5f277c1 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -60,6 +60,16 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_POWER4,
__memcpy_power4)
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
+
+ /* Support sysdeps/powerpc/powerpc64/multiarch/memset.c. */
+ IFUNC_IMPL (i, name, memset,
+ IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
+ __memset_power7)
+ IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
+ __memset_power6)
+ IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_POWER4,
+ __memset_power4)
+ IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
#endif
/* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */
@@ -70,5 +80,15 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memcmp_power4)
IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
+ /* Support sysdeps/powerpc/powerpc64/multiarch/bzero.c. */
+ IFUNC_IMPL (i, name, bzero,
+ IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
+ __bzero_power7)
+ IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
+ __bzero_power6)
+ IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
+ __bzero_power4)
+ IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
+
return i;
}
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset-power4.S b/sysdeps/powerpc/powerpc64/multiarch/memset-power4.S
new file mode 100644
index 0000000..aac7fb1
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset-power4.S
@@ -0,0 +1,41 @@
+/* Optimized memset 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(__memset_power4) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ BODY_LABEL(__memset_power4): \
+ cfi_startproc; \
+ LOCALENTRY(__memset_power4)
+
+#undef END_GEN_TB
+#define END_GEN_TB(name, mask) \
+ cfi_endproc; \
+ TRACEBACK_MASK(__memset_power4,mask) \
+ END_2(__memset_power4)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#define NO_BZERO_IMPL
+#include <sysdeps/powerpc/powerpc64/power4/memset.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset-power6.S b/sysdeps/powerpc/powerpc64/multiarch/memset-power6.S
new file mode 100644
index 0000000..3144c69
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset-power6.S
@@ -0,0 +1,41 @@
+/* Optimized memset implementation for PowerPC64/POWER6.
+ 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(__memset_power6) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ BODY_LABEL(__memset_power6): \
+ cfi_startproc; \
+ LOCALENTRY(__memset_power6)
+
+#undef END_GEN_TB
+#define END_GEN_TB(name, mask) \
+ cfi_endproc; \
+ TRACEBACK_MASK(__memset_power6,mask) \
+ END_2(__memset_power6)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#define NO_BZERO_IMPL
+#include <sysdeps/powerpc/powerpc64/power6/memset.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset-power7.S b/sysdeps/powerpc/powerpc64/multiarch/memset-power7.S
new file mode 100644
index 0000000..ecfa963
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset-power7.S
@@ -0,0 +1,41 @@
+/* Optimized memset 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(__memset_power7) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ BODY_LABEL(__memset_power7): \
+ cfi_startproc; \
+ LOCALENTRY(__memset_power7)
+
+#undef END_GEN_TB
+#define END_GEN_TB(name, mask) \
+ cfi_endproc; \
+ TRACEBACK_MASK(__memset_power7,mask) \
+ END_2(__memset_power7)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#define NO_BZERO_IMPL
+#include <sysdeps/powerpc/powerpc64/power7/memset.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S b/sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S
new file mode 100644
index 0000000..95b98f8
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S
@@ -0,0 +1,56 @@
+/* Default memset/bzero implementation for PowerPC64.
+ 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
+
+/* Copied from bzero.S to prevent the linker from inserting a stub
+ between bzero and memset. */
+ENTRY (__bzero_ppc)
+ CALL_MCOUNT 3
+ mr r5,r4
+ li r4,0
+ b L(_memset)
+END_GEN_TB (__bzero_ppc,TB_TOCLESS)
+
+# undef EALIGN
+# define EALIGN(name, alignt, words) \
+ .section ".text"; \
+ ENTRY_2(__memset_ppc) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ BODY_LABEL(__memset_ppc): \
+ cfi_startproc; \
+ LOCALENTRY(__memset_ppc)
+
+# undef END_GEN_TB
+# define END_GEN_TB(name, mask) \
+ cfi_endproc; \
+ TRACEBACK_MASK(__memset_ppc,mask) \
+ END_2(__memset_ppc)
+
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_memset; __GI_memset = __memset_ppc
+
+/* Do not implement __bzero at powerpc64/memset.S. */
+# define NO_BZERO_IMPL
+#endif
+
+#include <sysdeps/powerpc/powerpc64/memset.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset.c b/sysdeps/powerpc/powerpc64/multiarch/memset.c
new file mode 100644
index 0000000..226799e
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset.c
@@ -0,0 +1,40 @@
+/* Multiple versions of memset.
+ 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 (memset) __memset_ppc attribute_hidden;
+extern __typeof (memset) __memset_power4 attribute_hidden;
+extern __typeof (memset) __memset_power6 attribute_hidden;
+extern __typeof (memset) __memset_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+libc_ifunc (memset,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __memset_power7 :
+ (hwcap & PPC_FEATURE_ARCH_2_05)
+ ? __memset_power6 :
+ (hwcap & PPC_FEATURE_POWER4)
+ ? __memset_power4
+ : __memset_ppc);
+#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/rtld-memset.c b/sysdeps/powerpc/powerpc64/multiarch/rtld-memset.c
new file mode 100644
index 0000000..c74a770
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/rtld-memset.c
@@ -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/powerpc64/rtld-memset.c>
diff --git a/sysdeps/powerpc/powerpc64/power4/memset.S b/sysdeps/powerpc/powerpc64/power4/memset.S
index ad0d381..9d6fef5 100644
--- a/sysdeps/powerpc/powerpc64/power4/memset.S
+++ b/sysdeps/powerpc/powerpc64/power4/memset.S
@@ -235,6 +235,7 @@ L(medium_28t):
END_GEN_TB (memset,TB_TOCLESS)
libc_hidden_builtin_def (memset)
+#ifndef NO_BZERO_IMPL
/* Copied from bzero.S to prevent the linker from inserting a stub
between bzero and memset. */
ENTRY (__bzero)
@@ -245,3 +246,4 @@ ENTRY (__bzero)
END_GEN_TB (__bzero,TB_TOCLESS)
weak_alias (__bzero, bzero)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/power6/memset.S b/sysdeps/powerpc/powerpc64/power6/memset.S
index d61988a..15a83b7 100644
--- a/sysdeps/powerpc/powerpc64/power6/memset.S
+++ b/sysdeps/powerpc/powerpc64/power6/memset.S
@@ -379,6 +379,7 @@ L(medium_28t):
END_GEN_TB (memset,TB_TOCLESS)
libc_hidden_builtin_def (memset)
+#ifndef NO_BZERO_IMPL
/* Copied from bzero.S to prevent the linker from inserting a stub
between bzero and memset. */
ENTRY (__bzero)
@@ -389,3 +390,4 @@ ENTRY (__bzero)
END_GEN_TB (__bzero,TB_TOCLESS)
weak_alias (__bzero, bzero)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/power7/memset.S b/sysdeps/powerpc/powerpc64/power7/memset.S
index 8b081e8..03a45c2 100644
--- a/sysdeps/powerpc/powerpc64/power7/memset.S
+++ b/sysdeps/powerpc/powerpc64/power7/memset.S
@@ -383,6 +383,7 @@ L(small):
END_GEN_TB (memset,TB_TOCLESS)
libc_hidden_builtin_def (memset)
+#ifndef NO_BZERO_IMPL
/* Copied from bzero.S to prevent the linker from inserting a stub
between bzero and memset. */
ENTRY (__bzero)
@@ -393,3 +394,4 @@ ENTRY (__bzero)
END_GEN_TB (__bzero,TB_TOCLESS)
weak_alias (__bzero, bzero)
+#endif