1 ## Copyright (C) 2012-2014 Free Software Foundation, Inc.
2 ## Contributed by Richard Henderson <rth@redhat.com>.
4 ## This file is part of the GNU Atomic Library (libatomic).
6 ## Libatomic is free software; you can redistribute it and/or modify it
7 ## under the terms of the GNU General Public License as published by
8 ## the Free Software Foundation; either version 3 of the License, or
9 ## (at your option) any later version.
11 ## Libatomic is distributed in the hope that it will be useful, but WITHOUT ANY
12 ## WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 ## FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 ## Under Section 7 of GPL version 3, you are granted additional
17 ## permissions described in the GCC Runtime Library Exception, version
18 ## 3.1, as published by the Free Software Foundation.
20 ## You should have received a copy of the GNU General Public License and
21 ## a copy of the GCC Runtime Library Exception along with this program;
22 ## see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 ## <http://www.gnu.org/licenses/>.
25 ACLOCAL_AMFLAGS = -I .. -I ../config
28 ## May be used by toolexeclibdir.
29 gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)
31 config_path= @config_path@
32 search_path = $(addprefix $(top_srcdir)/config/, $(config_path)) \
33 $(top_srcdir) $(top_builddir)
35 vpath % $(strip $(search_path))
37 DEFAULT_INCLUDES = $(addprefix -I, $(search_path))
38 AM_CFLAGS = $(XCFLAGS)
39 AM_CCASFLAGS = $(XCFLAGS)
40 AM_LDFLAGS = $(XLDFLAGS) $(SECTION_LDFLAGS) $(OPT_LDFLAGS)
42 toolexeclib_LTLIBRARIES = libatomic.la
43 noinst_LTLIBRARIES = libatomic_convenience.la \
44 libatomic_convenience_no_lock.la
46 if LIBAT_BUILD_VERSIONED_SHLIB
47 if LIBAT_BUILD_VERSIONED_SHLIB_GNU
48 libatomic_version_script = -Wl,--version-script,$(top_srcdir)/libatomic.map
49 libatomic_version_dep = $(top_srcdir)/libatomic.map
51 if LIBAT_BUILD_VERSIONED_SHLIB_SUN
52 libatomic_version_script = -Wl,-M,libatomic.map-sun
53 libatomic_version_dep = libatomic.map-sun
54 libatomic.map-sun : $(top_srcdir)/libatomic.map \
55 $(top_srcdir)/../contrib/make_sunver.pl \
56 $(libatomic_la_OBJECTS) $(libatomic_la_LIBADD)
57 perl $(top_srcdir)/../contrib/make_sunver.pl \
58 $(top_srcdir)/libatomic.map \
59 $(libatomic_la_OBJECTS:%.lo=.libs/%.o) \
60 `echo $(libatomic_la_LIBADD) | \
61 sed 's,\([^/ ]*\)\.l\([ao]\),.libs/\1.\2,g'` \
62 > $@ || (rm -f $@ ; exit 1)
65 libatomic_version_script =
66 libatomic_version_dep =
68 libatomic_version_info = -version-info $(libtool_VERSION)
70 libatomic_la_LDFLAGS = $(libatomic_version_info) $(libatomic_version_script)
71 LIBAT_SRC_NO_LOCK = gload.c gstore.c gcas.c gexch.c glfree.c init.c fenv.c
72 libatomic_la_SOURCES = $(LIBAT_SRC_NO_LOCK) lock.c
74 SIZEOBJS = load store cas exch fadd fsub fand fior fxor fnand tas
77 EXTRA_libatomic_la_SOURCES = $(addsuffix _n.c,$(SIZEOBJS))
78 libatomic_la_DEPENDENCIES = $(libatomic_la_LIBADD) $(libatomic_version_dep)
80 ## And now our custom target patterns that allow us not to have tons of
81 ## extra source files hanging about. Unfortunately, the complex relation
82 ## between source and object filenames doesn't allow us to add an explicit
83 ## dependency here. Fortunately that doesn't matter since auto-generated
84 ## dependencies do the job just as well:
85 -include $(wildcard $(DEPDIR)/*.Ppo)
87 ## Naming pattern: base_n_i_.lo
90 ## I IFUNC alternative, index beginning at 1.
92 ## The trailing _ in the output object file name is required to differentiate
93 ## these objects from those which should be compiled normally. We can only
94 ## have one stem in the implicit rule.
97 space = $(empty) $(empty)
98 PAT_SPLIT = $(subst _,$(space),$(*F))
99 PAT_BASE = $(word 1,$(PAT_SPLIT))
100 PAT_N = $(word 2,$(PAT_SPLIT))
101 PAT_S = $(word 3,$(PAT_SPLIT))
102 IFUNC_DEF = -DIFUNC_ALT=$(PAT_S)
103 IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS))
105 M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
106 M_SIZE = -DN=$(PAT_N)
107 M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT))
108 M_FILE = $(PAT_BASE)_n.c
110 # The lack of explicit dependency on the source file means that VPATH cannot
111 # work properly. Instead, perform this operation by hand. First, collect a
112 # list of all .c files in the search path.
113 all_c_files := $(foreach dir,$(search_path),$(wildcard $(dir)/*.c))
115 # Then sort through them to find the one we want, and select the first.
116 M_SRC = $(firstword $(filter %/$(M_FILE), $(all_c_files)))
119 $(LTCOMPILE) $(M_DEPS) $(M_SIZE) $(M_IFUNC) -c -o $@ $(M_SRC)
121 ## Include all of the sizes in the "normal" set of compilation flags.
122 libatomic_la_LIBADD = $(foreach s,$(SIZES),$(addsuffix _$(s)_.lo,$(SIZEOBJS)))
124 ## On a target-specific basis, include alternates to be selected by IFUNC.
127 IFUNC_OPTIONS = -march=armv7-a -DHAVE_KERNEL64
128 libatomic_la_LIBADD += $(foreach s,$(SIZES),$(addsuffix _$(s)_1_.lo,$(SIZEOBJS)))
129 libatomic_la_LIBADD += $(addsuffix _8_2_.lo,$(SIZEOBJS))
132 IFUNC_OPTIONS = -march=i586
133 libatomic_la_LIBADD += $(addsuffix _8_1_.lo,$(SIZEOBJS))
136 IFUNC_OPTIONS = -mcx16
137 libatomic_la_LIBADD += $(addsuffix _16_1_.lo,$(SIZEOBJS))
141 libatomic_convenience_la_SOURCES = $(libatomic_la_SOURCES)
142 libatomic_convenience_la_LIBADD = $(libatomic_la_LIBADD)
144 libatomic_convenience_no_lock_la_SOURCES = $(LIBAT_SRC_NO_LOCK)
145 libatomic_convenience_no_lock_la_LIBADD = $(libatomic_la_LIBADD)