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Makefile.am (ARCH_AARCH64_LINUX): Add IFUNC_OPTIONS and libatomic_la_LIBADD.

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2017-12-04  Steve Ellcey  <sellcey@cavium.com>

	* Makefile.am (ARCH_AARCH64_LINUX): Add IFUNC_OPTIONS and
	libatomic_la_LIBADD.
	* config/linux/aarch64/host-config.h: New file.
	* configure.ac (IFUNC_RESOLVER_ARGS): Define.
	(ARCH_AARCH64_LINUX): New conditional for IFUNC builds.
	* configure.tgt (aarch64): Set ARCH and try_ifunc.
	(aarch64*-*-linux*) Update config_path.
	(aarch64*-*-linux*) Set IFUNC_RESOLVER_ARGS.
	* libatomic_i.h (GEN_SELECTOR): Add IFUNC_RESOLVER_ARGS argument.
	* Makefile.in: Regenerate.
	* auto-config.h.in: Regenerate.
	* configure: Regenerate.

From-SVN: r255399
This commit is contained in:
Steve Ellcey 2017-12-05 00:49:09 +00:00 committed by Steve Ellcey
parent ad8503503f
commit 141abc6f1e
9 changed files with 120 additions and 9 deletions
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15
libatomic/ChangeLog
View File

@ -1,3 +1,18 @@
2017-12-04 Steve Ellcey <sellcey@cavium.com>
* Makefile.am (ARCH_AARCH64_LINUX): Add IFUNC_OPTIONS and
libatomic_la_LIBADD.
* config/linux/aarch64/host-config.h: New file.
* configure.ac (IFUNC_RESOLVER_ARGS): Define.
(ARCH_AARCH64_LINUX): New conditional for IFUNC builds.
* configure.tgt (aarch64): Set ARCH and try_ifunc.
(aarch64*-*-linux*) Update config_path.
(aarch64*-*-linux*) Set IFUNC_RESOLVER_ARGS.
* libatomic_i.h (GEN_SELECTOR): Add IFUNC_RESOLVER_ARGS argument.
* Makefile.in: Regenerate.
* auto-config.h.in: Regenerate.
* configure: Regenerate.
2017-11-17 Igor Tsimbalist <igor.v.tsimbalist@intel.com>
* configure.ac: Set CET_FLAGS, update XCFLAGS.

4
libatomic/Makefile.am
View File

@ -122,6 +122,10 @@ libatomic_la_LIBADD = $(foreach s,$(SIZES),$(addsuffix _$(s)_.lo,$(SIZEOBJS)))
## On a target-specific basis, include alternates to be selected by IFUNC.
if HAVE_IFUNC
if ARCH_AARCH64_LINUX
IFUNC_OPTIONS = -march=armv8.1-a
libatomic_la_LIBADD += $(foreach s,$(SIZES),$(addsuffix _$(s)_1_.lo,$(SIZEOBJS)))
endif
if ARCH_ARM_LINUX
IFUNC_OPTIONS = -march=armv7-a+fp -DHAVE_KERNEL64
libatomic_la_LIBADD += $(foreach s,$(SIZES),$(addsuffix _$(s)_1_.lo,$(SIZEOBJS)))

10
libatomic/Makefile.in
View File

@ -52,13 +52,14 @@ POST_UNINSTALL = :
build_triplet = @build@
host_triplet = @host@
target_triplet = @target@
@ARCH_ARM_LINUX_TRUE@@HAVE_IFUNC_TRUE@am__append_1 = $(foreach \
@ARCH_AARCH64_LINUX_TRUE@@HAVE_IFUNC_TRUE@am__append_1 = $(foreach s,$(SIZES),$(addsuffix _$(s)_1_.lo,$(SIZEOBJS)))
@ARCH_ARM_LINUX_TRUE@@HAVE_IFUNC_TRUE@am__append_2 = $(foreach \
@ARCH_ARM_LINUX_TRUE@@HAVE_IFUNC_TRUE@ s,$(SIZES),$(addsuffix \
@ARCH_ARM_LINUX_TRUE@@HAVE_IFUNC_TRUE@ _$(s)_1_.lo,$(SIZEOBJS))) \
@ARCH_ARM_LINUX_TRUE@@HAVE_IFUNC_TRUE@ $(addsuffix \
@ARCH_ARM_LINUX_TRUE@@HAVE_IFUNC_TRUE@ _8_2_.lo,$(SIZEOBJS))
@ARCH_I386_TRUE@@HAVE_IFUNC_TRUE@am__append_2 = $(addsuffix _8_1_.lo,$(SIZEOBJS))
@ARCH_X86_64_TRUE@@HAVE_IFUNC_TRUE@am__append_3 = $(addsuffix _16_1_.lo,$(SIZEOBJS))
@ARCH_I386_TRUE@@HAVE_IFUNC_TRUE@am__append_3 = $(addsuffix _8_1_.lo,$(SIZEOBJS))
@ARCH_X86_64_TRUE@@HAVE_IFUNC_TRUE@am__append_4 = $(addsuffix _16_1_.lo,$(SIZEOBJS))
subdir = .
DIST_COMMON = ChangeLog $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
$(top_srcdir)/configure $(am__configure_deps) \
@ -346,7 +347,8 @@ all_c_files := $(foreach dir,$(search_path),$(wildcard $(dir)/*.c))
M_SRC = $(firstword $(filter %/$(M_FILE), $(all_c_files)))
libatomic_la_LIBADD = $(foreach s,$(SIZES),$(addsuffix \
_$(s)_.lo,$(SIZEOBJS))) $(am__append_1) $(am__append_2) \
$(am__append_3)
$(am__append_3) $(am__append_4)
@ARCH_AARCH64_LINUX_TRUE@@HAVE_IFUNC_TRUE@IFUNC_OPTIONS = -march=armv8.1-a
@ARCH_ARM_LINUX_TRUE@@HAVE_IFUNC_TRUE@IFUNC_OPTIONS = -march=armv7-a+fp -DHAVE_KERNEL64
@ARCH_I386_TRUE@@HAVE_IFUNC_TRUE@IFUNC_OPTIONS = -march=i586
@ARCH_X86_64_TRUE@@HAVE_IFUNC_TRUE@IFUNC_OPTIONS = -mcx16

3
libatomic/auto-config.h.in
View File

@ -153,6 +153,9 @@
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define ifunc resolver function argument. */
#undef IFUNC_RESOLVER_ARGS
/* Define to 1 if GNU symbol versioning is used for libatomic. */
#undef LIBAT_GNU_SYMBOL_VERSIONING

36
libatomic/config/linux/aarch64/host-config.h Normal file
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@ -0,0 +1,36 @@
/* Copyright (C) 2017 Free Software Foundation, Inc.
This file is part of the GNU Atomic Library (libatomic).
Libatomic is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
Libatomic 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 General Public License for
more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#if HAVE_IFUNC
#include <stdlib.h>
# ifdef HWCAP_ATOMICS
# define IFUNC_COND_1 (hwcap & HWCAP_ATOMICS)
# else
# define IFUNC_COND_1 (false)
# endif
# define IFUNC_NCOND(N) (1)
#endif /* HAVE_IFUNC */
#include_next <host-config.h>

25
libatomic/configure vendored
View File

@ -608,6 +608,8 @@ ARCH_I386_FALSE
ARCH_I386_TRUE
ARCH_ARM_LINUX_FALSE
ARCH_ARM_LINUX_TRUE
ARCH_AARCH64_LINUX_FALSE
ARCH_AARCH64_LINUX_TRUE
HAVE_IFUNC_FALSE
HAVE_IFUNC_TRUE
SIZES
@ -11118,7 +11120,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11121 "configure"
#line 11123 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -11224,7 +11226,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11227 "configure"
#line 11229 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -11526,6 +11528,13 @@ if test -n "$UNSUPPORTED"; then
as_fn_error "Configuration ${target} is unsupported." "$LINENO" 5
fi
# Write out the ifunc resolver arg type.
cat >>confdefs.h <<_ACEOF
#define IFUNC_RESOLVER_ARGS $IFUNC_RESOLVER_ARGS
_ACEOF
# Disable fallbacks to __sync routines from libgcc. Otherwise we'll
# make silly decisions about what the cpu can do.
CFLAGS="$save_CFLAGS -fno-sync-libcalls $XCFLAGS"
@ -15313,6 +15322,14 @@ else
HAVE_IFUNC_FALSE=
fi
if expr "$config_path" : ".* linux/aarch64 .*" > /dev/null; then
ARCH_AARCH64_LINUX_TRUE=
ARCH_AARCH64_LINUX_FALSE='#'
else
ARCH_AARCH64_LINUX_TRUE='#'
ARCH_AARCH64_LINUX_FALSE=
fi
if expr "$config_path" : ".* linux/arm .*" > /dev/null; then
ARCH_ARM_LINUX_TRUE=
ARCH_ARM_LINUX_FALSE='#'
@ -15503,6 +15520,10 @@ if test -z "${HAVE_IFUNC_TRUE}" && test -z "${HAVE_IFUNC_FALSE}"; then
as_fn_error "conditional \"HAVE_IFUNC\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${ARCH_AARCH64_LINUX_TRUE}" && test -z "${ARCH_AARCH64_LINUX_FALSE}"; then
as_fn_error "conditional \"ARCH_AARCH64_LINUX\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${ARCH_ARM_LINUX_TRUE}" && test -z "${ARCH_ARM_LINUX_FALSE}"; then
as_fn_error "conditional \"ARCH_ARM_LINUX\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5

6
libatomic/configure.ac
View File

@ -163,6 +163,10 @@ if test -n "$UNSUPPORTED"; then
AC_MSG_ERROR([Configuration ${target} is unsupported.])
fi
# Write out the ifunc resolver arg type.
AC_DEFINE_UNQUOTED(IFUNC_RESOLVER_ARGS, $IFUNC_RESOLVER_ARGS,
[Define ifunc resolver function argument.])
# Disable fallbacks to __sync routines from libgcc. Otherwise we'll
# make silly decisions about what the cpu can do.
CFLAGS="$save_CFLAGS -fno-sync-libcalls $XCFLAGS"
@ -251,6 +255,8 @@ AC_SUBST(LIBS)
AC_SUBST(SIZES)
AM_CONDITIONAL(HAVE_IFUNC, test x$libat_cv_have_ifunc = xyes)
AM_CONDITIONAL(ARCH_AARCH64_LINUX,
[expr "$config_path" : ".* linux/aarch64 .*" > /dev/null])
AM_CONDITIONAL(ARCH_ARM_LINUX,
[expr "$config_path" : ".* linux/arm .*" > /dev/null])
AM_CONDITIONAL(ARCH_I386,

24
libatomic/configure.tgt
View File

@ -40,6 +40,14 @@ case "${target_cpu}" in
riscv*) ARCH=riscv ;;
sh*) ARCH=sh ;;
aarch64*)
ARCH=aarch64
case "${target}" in
aarch64*-*-linux*)
try_ifunc=yes
;;
esac
;;
arm*)
ARCH=arm
case "${target}" in
@ -109,6 +117,11 @@ fi
# Other system configury
case "${target}" in
aarch64*-*-linux*)
# OS support for atomic primitives.
config_path="${config_path} linux/aarch64 posix"
;;
arm*-*-linux*)
# OS support for atomic primitives.
config_path="${config_path} linux/arm posix"
@ -153,3 +166,14 @@ case "${target}" in
UNSUPPORTED=1
;;
esac
# glibc will pass hwcap to ifunc resolver functions as an argument.
# The type may be different on different architectures.
case "${target}" in
aarch64*-*-*)
IFUNC_RESOLVER_ARGS="uint64_t hwcap"
;;
*)
IFUNC_RESOLVER_ARGS="void"
;;
esac

6
libatomic/libatomic_i.h
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@ -240,7 +240,7 @@ bool libat_is_lock_free (size_t, void *) MAN(is_lock_free);
# if IFUNC_NCOND(N) == 1
# define GEN_SELECTOR(X) \
extern typeof(C2(libat_,X)) C3(libat_,X,_i1) HIDDEN; \
static typeof(C2(libat_,X)) * C2(select_,X) (void) \
static typeof(C2(libat_,X)) * C2(select_,X) (IFUNC_RESOLVER_ARGS) \
{ \
if (IFUNC_COND_1) \
return C3(libat_,X,_i1); \
@ -250,7 +250,7 @@ bool libat_is_lock_free (size_t, void *) MAN(is_lock_free);
# define GEN_SELECTOR(X) \
extern typeof(C2(libat_,X)) C3(libat_,X,_i1) HIDDEN; \
extern typeof(C2(libat_,X)) C3(libat_,X,_i2) HIDDEN; \
static typeof(C2(libat_,X)) * C2(select_,X) (void) \
static typeof(C2(libat_,X)) * C2(select_,X) (IFUNC_RESOLVER_ARGS) \
{ \
if (IFUNC_COND_1) \
return C3(libat_,X,_i1); \
@ -263,7 +263,7 @@ bool libat_is_lock_free (size_t, void *) MAN(is_lock_free);
extern typeof(C2(libat_,X)) C3(libat_,X,_i1) HIDDEN; \
extern typeof(C2(libat_,X)) C3(libat_,X,_i2) HIDDEN; \
extern typeof(C2(libat_,X)) C3(libat_,X,_i3) HIDDEN; \
static typeof(C2(libat_,X)) * C2(select_,X) (void) \
static typeof(C2(libat_,X)) * C2(select_,X) (IFUNC_RESOLVER_ARGS) \
{ \
if (IFUNC_COND_1) \
return C3(libat_,X,_i1); \