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142 lines
5.1 KiB
Makefile
142 lines
5.1 KiB
Makefile
## Copyright (C) 2012-2014 Free Software Foundation, Inc.
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## Contributed by Richard Henderson <rth@redhat.com>.
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##
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## This file is part of the GNU Atomic Library (libatomic).
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##
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## Libatomic is free software; you can redistribute it and/or modify it
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## under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 3 of the License, or
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## (at your option) any later version.
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##
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## Libatomic is distributed in the hope that it will be useful, but WITHOUT ANY
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## WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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## FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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## more details.
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##
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## Under Section 7 of GPL version 3, you are granted additional
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## permissions described in the GCC Runtime Library Exception, version
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## 3.1, as published by the Free Software Foundation.
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##
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## You should have received a copy of the GNU General Public License and
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## a copy of the GCC Runtime Library Exception along with this program;
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## see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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## <http://www.gnu.org/licenses/>.
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ACLOCAL_AMFLAGS = -I .. -I ../config
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SUBDIRS = testsuite
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## May be used by toolexeclibdir.
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gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)
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config_path= @config_path@
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search_path = $(addprefix $(top_srcdir)/config/, $(config_path)) \
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$(top_srcdir) $(top_builddir)
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vpath % $(strip $(search_path))
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DEFAULT_INCLUDES = $(addprefix -I, $(search_path))
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AM_CFLAGS = $(XCFLAGS)
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AM_CCASFLAGS = $(XCFLAGS)
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AM_LDFLAGS = $(XLDFLAGS) $(SECTION_LDFLAGS) $(OPT_LDFLAGS)
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toolexeclib_LTLIBRARIES = libatomic.la
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noinst_LTLIBRARIES = libatomic_convenience.la
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if LIBAT_BUILD_VERSIONED_SHLIB
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if LIBAT_BUILD_VERSIONED_SHLIB_GNU
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libatomic_version_script = -Wl,--version-script,$(top_srcdir)/libatomic.map
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libatomic_version_dep = $(top_srcdir)/libatomic.map
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endif
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if LIBAT_BUILD_VERSIONED_SHLIB_SUN
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libatomic_version_script = -Wl,-M,libatomic.map-sun
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libatomic_version_dep = libatomic.map-sun
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libatomic.map-sun : $(top_srcdir)/libatomic.map \
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$(top_srcdir)/../contrib/make_sunver.pl \
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$(libatomic_la_OBJECTS) $(libatomic_la_LIBADD)
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perl $(top_srcdir)/../contrib/make_sunver.pl \
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$(top_srcdir)/libatomic.map \
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$(libatomic_la_OBJECTS:%.lo=.libs/%.o) \
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`echo $(libatomic_la_LIBADD) | \
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sed 's,\([^/ ]*\)\.l\([ao]\),.libs/\1.\2,g'` \
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> $@ || (rm -f $@ ; exit 1)
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endif
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else
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libatomic_version_script =
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libatomic_version_dep =
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endif
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libatomic_version_info = -version-info $(libtool_VERSION)
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libatomic_la_LDFLAGS = $(libatomic_version_info) $(libatomic_version_script)
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libatomic_la_SOURCES = gload.c gstore.c gcas.c gexch.c glfree.c lock.c init.c \
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fenv.c
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SIZEOBJS = load store cas exch fadd fsub fand fior fxor fnand tas
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SIZES = @SIZES@
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EXTRA_libatomic_la_SOURCES = $(addsuffix _n.c,$(SIZEOBJS))
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libatomic_la_DEPENDENCIES = $(libatomic_la_LIBADD) $(libatomic_version_dep)
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## And now our custom target patterns that allow us not to have tons of
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## extra source files hanging about. Unfortunately, the complex relation
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## between source and object filenames doesn't allow us to add an explicit
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## dependency here. Fortunately that doesn't matter since auto-generated
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## dependencies do the job just as well:
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-include $(wildcard $(DEPDIR)/*.Ppo)
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## Naming pattern: base_n_i_.lo
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##
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## N size of data
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## I IFUNC alternative, index beginning at 1.
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##
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## The trailing _ in the output object file name is required to differentiate
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## these objects from those which should be compiled normally. We can only
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## have one stem in the implicit rule.
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empty =
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space = $(empty) $(empty)
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PAT_SPLIT = $(subst _,$(space),$(*F))
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PAT_BASE = $(word 1,$(PAT_SPLIT))
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PAT_N = $(word 2,$(PAT_SPLIT))
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PAT_S = $(word 3,$(PAT_SPLIT))
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IFUNC_DEF = -DIFUNC_ALT=$(PAT_S)
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IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS))
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M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
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M_SIZE = -DN=$(PAT_N)
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M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT))
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M_FILE = $(PAT_BASE)_n.c
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# The lack of explicit dependency on the source file means that VPATH cannot
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# work properly. Instead, perform this operation by hand. First, collect a
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# list of all .c files in the search path.
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all_c_files := $(foreach dir,$(search_path),$(wildcard $(dir)/*.c))
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# Then sort through them to find the one we want, and select the first.
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M_SRC = $(firstword $(filter %/$(M_FILE), $(all_c_files)))
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%_.lo: Makefile
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$(LTCOMPILE) $(M_DEPS) $(M_SIZE) $(M_IFUNC) -c -o $@ $(M_SRC)
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## Include all of the sizes in the "normal" set of compilation flags.
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libatomic_la_LIBADD = $(foreach s,$(SIZES),$(addsuffix _$(s)_.lo,$(SIZEOBJS)))
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## On a target-specific basis, include alternates to be selected by IFUNC.
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if HAVE_IFUNC
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if ARCH_ARM_LINUX
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IFUNC_OPTIONS = -march=armv7-a -DHAVE_KERNEL64
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libatomic_la_LIBADD += $(foreach s,$(SIZES),$(addsuffix _$(s)_1_.lo,$(SIZEOBJS)))
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libatomic_la_LIBADD += $(addsuffix _8_2_.lo,$(SIZEOBJS))
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endif
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if ARCH_I386
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IFUNC_OPTIONS = -march=i586
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libatomic_la_LIBADD += $(addsuffix _8_1_.lo,$(SIZEOBJS))
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endif
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if ARCH_X86_64
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IFUNC_OPTIONS = -mcx16
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libatomic_la_LIBADD += $(addsuffix _16_1_.lo,$(SIZEOBJS))
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endif
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endif
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libatomic_convenience_la_SOURCES = $(libatomic_la_SOURCES)
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libatomic_convenience_la_LIBADD = $(libatomic_la_LIBADD)
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