1 # Copyright (C) 1991-2016 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) { }') > $@
82 common-generated += dummy.o dummy.c
84 # This makes all the auxiliary and test programs.
86 .PHONY: others tests bench
88 ifeq ($(build-programs),yes)
89 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
91 others: $(addprefix $(objpfx),$(extra-objs))
93 ifeq ($(run-built-tests),no)
94 tests: $(addprefix $(objpfx),$(tests) $(test-srcs)) $(tests-special)
95 xtests: tests $(xtests-special)
97 tests: $(tests:%=$(objpfx)%.out) $(tests-special)
98 xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-special)
101 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
102 xtests-special-notdir = $(patsubst $(objpfx)%, %, $(xtests-special))
104 $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
105 $(sort $(tests) $(tests-special-notdir:.out=)) \
106 > $(objpfx)subdir-tests.sum
108 $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
109 $(sort $(xtests) $(xtests-special-notdir:.out=)) \
110 > $(objpfx)subdir-xtests.sum
112 ifeq ($(build-programs),yes)
113 binaries-all-notests = $(others) $(sysdep-others)
114 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
115 binaries-all = $(binaries-all-notests) $(binaries-all-tests)
116 binaries-static-notests = $(others-static)
117 binaries-static-tests = $(tests-static) $(xtests-static)
118 binaries-static = $(binaries-static-notests) $(binaries-static-tests)
119 ifeq (yesyes,$(have-fpie)$(build-shared))
120 binaries-pie-tests = $(tests-pie) $(xtests-pie)
121 binaries-pie-notests = $(others-pie)
124 binaries-pie-notests =
127 binaries-all-notests =
128 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
129 binaries-all = $(binaries-all-tests)
130 binaries-static-notests =
131 binaries-static-tests =
134 binaries-pie-notests =
137 binaries-pie = $(binaries-pie-tests) $(binaries-pie-notests)
138 binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
139 $(binaries-all-tests))
140 binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
141 $(binaries-all-notests))
143 ifneq "$(strip $(binaries-shared-notests))" ""
144 $(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
145 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
146 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
150 ifneq "$(strip $(binaries-shared-tests))" ""
151 $(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
152 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
153 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
157 ifneq "$(strip $(binaries-pie-tests))" ""
158 $(addprefix $(objpfx),$(binaries-pie-tests)): %: %.o \
159 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
160 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
164 ifneq "$(strip $(binaries-pie-notests))" ""
165 $(addprefix $(objpfx),$(binaries-pie-notests)): %: %.o \
166 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
167 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
171 ifneq "$(strip $(binaries-static-notests))" ""
172 $(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
173 $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
174 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
178 ifneq "$(strip $(binaries-static-tests))" ""
179 $(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
180 $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
181 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
182 $(+link-static-tests)
185 ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
186 # These are the implicit rules for making test outputs
187 # from the test programs and whatever input files are present.
190 $(if $($*-ENV-only),$(test-wrapper-env-only) $($*-ENV-only),\
191 $(test-wrapper-env) $(run-program-env) $($*-ENV)) \
192 $(host-test-program-cmd) $($*-ARGS)
194 $(objpfx)%.out: %.input $(objpfx)%
195 $(make-test-out) > $@ < $(word 1,$^); \
197 $(objpfx)%.out: /dev/null $(objpfx)% # Make it 2nd arg for canned sequence.
198 $(make-test-out) > $@; \
201 # tests-unsupported lists tests that we will not try to build at all in
202 # this configuration. Note this runs every time because it does not
203 # actually create its target. The dependency on Makefile is meant to
204 # ensure that it runs after a Makefile change to add a test to the list
205 # when it previously ran and produced a .out file (probably for a failure).
206 ifneq "$(strip $(tests-unsupported))" ""
207 $(tests-unsupported:%=$(objpfx)%.out): $(objpfx)%.out: Makefile
209 $(..)scripts/evaluate-test.sh $(patsubst $(common-objpfx)%.out,%,$@) \
210 77 false false > $(@:.out=.test-result)
216 .PHONY: distclean realclean subdir_distclean subdir_realclean \
217 subdir_clean subdir_mostlyclean subdir_testclean
218 subdir_mostlyclean: mostlyclean
220 subdir_distclean: distclean
221 subdir_realclean: realclean
222 subdir_testclean: do-tests-clean
226 # We want to install everything except the library itself, but update all
227 # our portions of the library because the parent make will install it later
228 # (likewise the stubs file).
229 .PHONY: subdir_install
230 subdir_install: install-no-libc.a lib-noranlib stubs
232 .PHONY: subdir_objs subdir_stubs
236 # Target required by the Hurd to ensure that all the MiG-generated
237 # headers are in place before building a subdirectory.
238 .PHONY: before-compile
239 before-compile: $(before-compile)
241 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);