1 # Copyright (C) 1991-2013 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, see
16 # <http://www.gnu.org/licenses/>.
19 # Rules for making a subdirectory in the GNU C library.
20 # Each subdirectory Makefile defines some variables and includes this.
23 This makefile requires GNU Make.
26 all: # Don't let the default goal come from Makeconfig.
28 include $(firstword $(..) ../)Makeconfig
31 Each subdirectory makefile must define the `subdir' variable.
33 # This ` unconfuses emacs.
34 # This is benign and useless in GNU make before 3.63.
35 export subdir := $(subdir)
37 # This is the default target; it makes the library and auxiliary programs.
41 ifeq ($(build-programs),yes)
42 others: $(addprefix $(objpfx),$(extra-objs) \
44 $(install-bin) $(install-bin-script) \
45 $(install-rootsbin) $(install-sbin))
47 others: $(addprefix $(objpfx),$(extra-objs) \
51 ifneq "$(findstring env,$(origin headers))" ""
55 ifneq "$(findstring env,$(origin generated))" ""
59 ifneq "$(findstring env,$(origin common-generated))" ""
63 # See below. This must be set before Makerules processes it.
64 before-compile += $(common-objpfx)bits/stdio_lim.h
66 include $(..)Makerules
69 subdir_lib: lib-noranlib
71 # Some subdirs need to install a dummy library.
72 # They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
73 dep-dummy-lib = $(common-objpfx)dummy.o
75 $(AR) cr$(verbose) $@ $<
78 $(common-objpfx)dummy.c:
80 (echo 'extern void __dummy__ (void);'; \
81 echo 'void __dummy__ (void) { }') > $@
82 common-generated += dummy.o dummy.c
84 # This makes all the auxiliary and test programs.
86 .PHONY: others tests bench
87 ifeq ($(multi-arch),no)
88 tests := $(filter-out $(tests-ifunc), $(tests))
89 xtests := $(filter-out $(xtests-ifunc), $(xtests))
92 ifeq ($(build-programs),yes)
93 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
95 others: $(addprefix $(objpfx),$(extra-objs))
97 ifeq ($(run-built-tests),no)
98 tests: $(addprefix $(objpfx),$(tests) $(test-srcs))
101 tests: $(tests:%=$(objpfx)%.out)
102 xtests: tests $(xtests:%=$(objpfx)%.out)
105 ifeq ($(build-programs),yes)
106 binaries-all-notests = $(others) $(sysdep-others)
107 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
108 binaries-all = $(binaries-all-notests) $(binaries-all-tests)
109 binaries-static-notests = $(others-static)
110 binaries-static-tests = $(tests-static) $(xtests-static)
111 binaries-static = $(binaries-static-notests) $(binaries-static-tests)
112 ifeq (yesyes,$(have-fpie)$(build-shared))
113 binaries-pie-tests = $(tests-pie) $(xtests-pie)
114 binaries-pie-notests = $(others-pie)
117 binaries-pie-notests =
120 binaries-all-notests =
121 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
122 binaries-all = $(binaries-all-tests)
123 binaries-static-notests =
124 binaries-static-tests =
127 binaries-pie-notests =
130 binaries-pie = $(binaries-pie-tests) $(binaries-pie-notests)
131 binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
132 $(binaries-all-tests))
133 binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
134 $(binaries-all-notests))
136 ifneq "$(strip $(binaries-shared-notests))" ""
137 $(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
138 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
139 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
143 ifneq "$(strip $(binaries-shared-tests))" ""
144 $(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
145 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
146 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
150 ifneq "$(strip $(binaries-pie-tests))" ""
151 $(addprefix $(objpfx),$(binaries-pie-tests)): %: %.o \
152 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
153 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
157 ifneq "$(strip $(binaries-pie-notests))" ""
158 $(addprefix $(objpfx),$(binaries-pie-notests)): %: %.o \
159 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
160 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
164 ifneq "$(strip $(binaries-static-notests))" ""
165 $(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
166 $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
167 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
171 ifneq "$(strip $(binaries-static-tests))" ""
172 $(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
173 $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
174 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
175 $(+link-static-tests)
178 ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
179 # These are the implicit rules for making test outputs
180 # from the test programs and whatever input files are present.
182 make-test-out = $(test-wrapper-env) \
183 GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
184 $($*-ENV) $(host-test-program-cmd) $($*-ARGS)
185 $(objpfx)%.out: %.input $(objpfx)%
186 $(make-test-out) > $@ < $(word 1,$^)
187 $(objpfx)%.out: /dev/null $(objpfx)% # Make it 2nd arg for canned sequence.
188 $(make-test-out) > $@
193 .PHONY: distclean realclean subdir_distclean subdir_realclean \
194 subdir_clean subdir_mostlyclean subdir_testclean
195 subdir_mostlyclean: mostlyclean
197 subdir_distclean: distclean
198 subdir_realclean: realclean
199 subdir_testclean: do-tests-clean
203 # We want to install everything except the library itself, but update all
204 # our portions of the library because the parent make will install it later
205 # (likewise the stubs file).
206 .PHONY: subdir_install
207 subdir_install: install-no-libc.a lib-noranlib stubs
209 .PHONY: subdir_objs subdir_stubs
213 # Target required by the Hurd to ensure that all the MiG-generated
214 # headers are in place before building a subdirectory.
215 .PHONY: before-compile
216 before-compile: $(before-compile)
218 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);