PowerPC: multiarch bzero cleanup for PPC64
This patch cleanups the multiarch bzero for powerpc64 by remove the multiarch objects and use instead the the memset embedded implementation presented in each multiarch optimization. The code generate is essentially the same, but the TB_TOCLESS (which is not essential).
This commit is contained in:
Adhemerval Zanella
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17
ChangeLog
17
ChangeLog
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@ -1,3 +1,20 @@
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2014-09-10 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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* sysdeps/powerpc/powerpc64/multiarch/Makefile [sysdep_routines]:
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Remove bzero multiarch objects.
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* sysdeps/powerpc/powerpc64/multiarch/bzero-power4.S: Remove file.
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* sysdeps/powerpc/powerpc64/multiarch/bzero-power6.S: Likewise.
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* sysdeps/powerpc/powerpc64/multiarch/bzero-power7.S: Likewise.
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* sysdeps/powerpc/powerpc64/multiarch/memset-power4.S [NO_BZERO_IMPL]:
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Remove define.
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[__bzero]: Redefine to specific name.
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* sysdeps/powerpc/powerpc64/multiarch/memset-power6.S: Likewise.
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* sysdeps/powerpc/powerpc64/multiarch/memset-power7.S: Likewise.
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* sysdeps/powerpc/powerpc64/power4/memset.S [NO_BZERO_IMPL]: Remove
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define.
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* sysdeps/powerpc/powerpc64/power6/memset.S: Likewise.
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* sysdeps/powerpc/powerpc64/power7/memset.S: Likewise.
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2014-09-10 Florian Weimer <fweimer@redhat.com>
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* Makeconfig (gccwarn-c): Turn implicit-function-declaration
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@ -2,7 +2,7 @@ ifeq ($(subdir),string)
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sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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memcpy-power4 memcpy-ppc64 memcmp-power7 memcmp-power4 \
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memcmp-ppc64 memset-power7 memset-power6 memset-power4 \
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memset-ppc64 bzero-power4 bzero-power6 bzero-power7 \
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memset-ppc64 \
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mempcpy-power7 mempcpy-ppc64 memchr-power7 memchr-ppc64 \
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memrchr-power7 memrchr-ppc64 rawmemchr-power7 \
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rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \
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@ -1,26 +0,0 @@
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/* Optimized bzero implementation for PowerPC64/POWER4.
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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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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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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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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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#include <sysdep.h>
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ENTRY (__bzero_power4)
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CALL_MCOUNT 3
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mr r5,r4
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li r4,0
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b __memset_power4
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END_GEN_TB (__bzero_power4,TB_TOCLESS)
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@ -1,26 +0,0 @@
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/* Optimized bzero implementation for PowerPC64/POWER6.
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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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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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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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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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#include <sysdep.h>
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ENTRY (__bzero_power6)
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CALL_MCOUNT 3
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mr r5,r4
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li r4,0
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b __memset_power6
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END_GEN_TB (__bzero_power6,TB_TOCLESS)
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@ -1,26 +0,0 @@
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/* Optimized bzero implementation for PowerPC64/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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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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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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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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#include <sysdep.h>
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ENTRY (__bzero_power7)
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CALL_MCOUNT 3
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mr r5,r4
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li r4,0
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b __memset_power7
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END_GEN_TB (__bzero_power7,TB_TOCLESS)
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@ -37,5 +37,7 @@
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#undef libc_hidden_builtin_def
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#define libc_hidden_builtin_def(name)
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#define NO_BZERO_IMPL
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#undef __bzero
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#define __bzero __bzero_power4
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#include <sysdeps/powerpc/powerpc64/power4/memset.S>
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@ -37,5 +37,7 @@
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#undef libc_hidden_builtin_def
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#define libc_hidden_builtin_def(name)
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#define NO_BZERO_IMPL
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#undef __bzero
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#define __bzero __bzero_power6
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#include <sysdeps/powerpc/powerpc64/power6/memset.S>
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@ -37,5 +37,6 @@
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#undef libc_hidden_builtin_def
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#define libc_hidden_builtin_def(name)
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#define NO_BZERO_IMPL
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#undef __bzero
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#define __bzero __bzero_power7
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#include <sysdeps/powerpc/powerpc64/power7/memset.S>
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@ -235,7 +235,6 @@ L(medium_28t):
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END_GEN_TB (memset,TB_TOCLESS)
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libc_hidden_builtin_def (memset)
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#ifndef NO_BZERO_IMPL
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/* Copied from bzero.S to prevent the linker from inserting a stub
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between bzero and memset. */
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ENTRY (__bzero)
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@ -243,7 +242,7 @@ ENTRY (__bzero)
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mr r5,r4
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li r4,0
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b L(_memset)
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END_GEN_TB (__bzero,TB_TOCLESS)
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END (__bzero)
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#ifndef __bzero
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weak_alias (__bzero, bzero)
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#endif
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@ -379,7 +379,6 @@ L(medium_28t):
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END_GEN_TB (memset,TB_TOCLESS)
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libc_hidden_builtin_def (memset)
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#ifndef NO_BZERO_IMPL
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/* Copied from bzero.S to prevent the linker from inserting a stub
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between bzero and memset. */
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ENTRY (__bzero)
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@ -387,7 +386,7 @@ ENTRY (__bzero)
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mr r5,r4
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li r4,0
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b L(_memset)
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END_GEN_TB (__bzero,TB_TOCLESS)
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END (__bzero)
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#ifndef __bzero
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weak_alias (__bzero, bzero)
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#endif
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@ -383,7 +383,6 @@ L(small):
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END_GEN_TB (memset,TB_TOCLESS)
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libc_hidden_builtin_def (memset)
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#ifndef NO_BZERO_IMPL
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/* Copied from bzero.S to prevent the linker from inserting a stub
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between bzero and memset. */
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ENTRY (__bzero)
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@ -391,7 +390,7 @@ ENTRY (__bzero)
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mr r5,r4
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li r4,0
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b L(_memset)
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END_GEN_TB (__bzero,TB_TOCLESS)
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END (__bzero)
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#ifndef __bzero
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weak_alias (__bzero, bzero)
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#endif
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