about summary refs log tree commit diff
path: root/Makefile
blob: 23e8b2fcb9acabb176c237e3c0e4bb74656b5215 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
# Copyright (C) 1991-2002, 2003 Free Software Foundation, Inc.
# This file is part of the GNU C Library.

# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.

# The GNU C Library 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
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, write to the Free
# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
# 02111-1307 USA.

#
#	Master Makefile for the GNU C library
#
ifneq (,)
This makefile requires GNU Make.
endif

include Makeconfig


# This is the default target; it makes everything except the tests.
.PHONY: all
all: lib others

ifneq ($(AUTOCONF),no)

ifeq ($(with-cvs),yes)
define autoconf-it-cvs
test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
endef
else
autoconf-it-cvs =
endif

define autoconf-it
@-rm -f $@.new
$(AUTOCONF) $(ACFLAGS) $< > $@.new
chmod a-w,a+x $@.new
mv -f $@.new $@
$(autoconf-it-cvs)
endef

configure: configure.in aclocal.m4; $(autoconf-it)
%/configure: %/configure.in aclocal.m4; $(autoconf-it)

endif # $(AUTOCONF) = no


# We don't want to run anything here in parallel.
.NOTPARALLEL:

# These are the targets that are made by making them in each subdirectory.
+subdir_targets	:= subdir_lib objects objs others subdir_mostlyclean	\
		   subdir_clean subdir_distclean subdir_realclean	\
		   tests xtests subdir_lint.out				\
		   subdir_update-abi subdir_check-abi subdir_distinfo	\
		   subdir_echo-headers subdir_echo-distinfo		\
		   subdir_install					\
		   subdir_testclean					\
		   $(addprefix install-, no-libc.a bin lib data headers others)

headers := limits.h values.h features.h gnu-versions.h bits/libc-lock.h \
	   bits/xopen_lim.h gnu/libc-version.h

echo-headers: subdir_echo-headers

# The headers are in the include directory.
subdir-dirs = include
vpath %.h $(subdir-dirs)

# What to install.
install-others = $(inst_includedir)/gnu/stubs.h
install-bin-script = glibcbug

ifeq (yes,$(build-shared))
headers += gnu/lib-names.h
endif

include Makerules

ifeq ($(build-programs),yes)
others: $(addprefix $(objpfx),$(install-bin-script))
endif

# Install from subdirectories too.
install: subdir_install

# Explicit dependency so that `make install-headers' works
install-headers: install-headers-nosubdir

# Make sure that the dynamic linker is installed before libc.
$(inst_slibdir)/libc-$(version).so: elf/ldso_install

.PHONY: elf/ldso_install
elf/ldso_install:
	$(MAKE) -C $(@D) $(@F)

# Create links for shared libraries using the `ldconfig' program if possible.
# Ignore the error if we cannot update /etc/ld.so.cache.
ifeq (no,$(cross-compiling))
ifeq (yes,$(build-shared))
install: install-symbolic-link
.PHONY: install-symbolic-link
install-symbolic-link: subdir_install
	$(symbolic-link-prog) $(symbolic-link-list)
	rm -f $(symbolic-link-list)

install:
	-test ! -x $(common-objpfx)elf/ldconfig || LC_ALL=C LANGUAGE=C \
	  $(common-objpfx)elf/ldconfig $(addprefix -r ,$(install_root)) \
				       $(slibdir) $(libdir)
ifneq (no,$(PERL))
ifeq (/usr,$(prefix))
ifeq (,$(install_root))
	CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
endif
endif
endif
endif
endif

# Build subdirectory lib objects.
lib-noranlib: subdir_lib

ifeq (yes,$(build-shared))
# Build the shared object from the PIC object library.
lib: $(common-objpfx)libc.so
endif


# This is a handy script for running any dynamically linked program against
# the current libc build for testing.
$(common-objpfx)testrun.sh: $(common-objpfx)config.make \
			    $(..)Makeconfig $(..)Makefile
	(echo '#!/bin/sh'; \
	 echo "GCONV_PATH='$(common-objpfx)iconvdata' \\"; \
	 echo 'exec $(run-program-prefix) $${1+"$$@"}'; \
	) > $@T
	chmod a+x $@T
	mv -f $@T $@
postclean-generated += testrun.sh

others: $(common-objpfx)testrun.sh

# Makerules creates a file `stubs' in each subdirectory, which
# contains `#define __stub_FUNCTION' for each function defined in that
# directory which is a stub.
# Here we paste all of these together into <gnu/stubs.h>.

subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)

# Since stubs.h is never needed when building the library, we simplify the
# hairy installation process by producing it in place only as the last part
# of the top-level `make install'.  It depends on subdir_install, which
# iterates over all the subdirs; subdir_install in each subdir depends on
# the subdir's stubs file.  Having more direct dependencies would result in
# extra iterations over the list for subdirs and many recursive makes.
$(inst_includedir)/gnu/stubs.h: include/stubs-prologue.h subdir_install
	$(make-target-directory)
	@rm -f $(objpfx)stubs.h
	(sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
	if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
	then echo 'stubs.h unchanged'; \
	else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
	rm -f $(objpfx)stubs.h

# The `glibcbug' script contains the version number and it shall be rebuild
# whenever this changes or the `glibcbug.in' file.
$(objpfx)glibcbug: $(common-objpfx)config.status glibcbug.in
	cd $(<D) && CONFIG_FILES=$(@F) CONFIG_HEADERS= $(SHELL) $(<F)

# This makes the Info or DVI file of the documentation from the Texinfo source.
.PHONY: info dvi pdf html
info dvi pdf html:
	$(MAKE) $(PARALLELMFLAGS) -C manual $@

# This makes all the subdirectory targets.

# For each target, make it depend on DIR/target for each subdirectory DIR.
$(+subdir_targets): %: $(addsuffix /%,$(subdirs))

# Compute a list of all those targets.
all-subdirs-targets := $(foreach dir,$(subdirs),\
				 $(addprefix $(dir)/,$(+subdir_targets)))

# The action for each of those is to cd into the directory and make the
# target there.
$(all-subdirs-targets):
	$(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)

.PHONY: $(+subdir_targets) $(all-subdirs-targets)

# Targets to clean things up to various degrees.

.PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
	tests-clean

# Subroutines of all cleaning targets.
parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
	-rm -f $(foreach o,$(object-suffixes-for-libc),\
		   $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
	       $(addprefix $(objpfx),$(install-lib))
parent-clean: parent-mostlyclean common-clean

postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
	    $(addprefix $(objpfx),sysd-dirs sysd-rules) \
	    $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)

clean: parent-clean
# This is done this way rather than having `subdir_clean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
	@$(MAKE) subdir_clean no_deps=t
	-rm -f $(postclean)
mostlyclean: parent-mostlyclean
	@$(MAKE) subdir_mostlyclean no_deps=t
	-rm -f $(postclean)

tests-clean:
	@$(MAKE) subdir_testclean no_deps=t

tests: $(objpfx)c++-types-check.out
ifneq (no,$(CXX)$(wildcard scripts/data/c++-types-$(base-machine)-$(config-os).data))
$(objpfx)c++-types-check.out: scripts/data/c++-types-$(base-machine)-$(config-os).data
	scripts/check-c++-types.sh $^ $(CXX) $(filter-out -std=gnu99,$(CFLAGS)) $(CPPFLAGS) > $@
else
$(objpfx)c++-types-check.out:
	@echo 'WARNING C++ tests not run; create a c++-types-XXX file'
	@echo "not run" > $@
endif

# The realclean target is just like distclean for the parent, but we want
# the subdirs to know the difference in case they care.
realclean distclean: parent-clean
# This is done this way rather than having `subdir_distclean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
	@$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
		 sysdep-subdirs="$(sysdep-subdirs)"
	-rm -f $(postclean)

# Subroutine of distclean and realclean.
distclean-1: subdir_$(distclean-1)
	-rm -f $(config-generated)
	-rm -f $(addprefix $(objpfx),config.status config.cache config.log)
	-rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
	-rm -f $(addprefix $(objpfx),glibcbug)
ifdef objdir
	-rm -f $(objpfx)Makefile
endif
	-rm -f $(sysdep-$(distclean-1))

.PHONY: echo_subdirs
echo_subdirs:;@echo '$(subdirs)'

.PHONY: echo-distinfo parent_echo-distinfo
echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
parent_echo-distinfo:
	@echo $(addprefix +header+,$(headers)) \
	      $(addprefix +nodist+,$(generated))


# Make the distribution tarfile.

distribute  :=	README README.libm INSTALL FAQ FAQ.in NOTES NEWS BUGS	\
		PROJECTS COPYING.LIB COPYING ChangeLog ChangeLog.[0-9]	\
		ChangeLog.1[0-9] Makefile Makeconfig Makerules Rules	\
		Make-dist MakeTAGS extra-lib.mk o-iterator.mk configure	\
		configure.in aclocal.m4 config.h.in config.make.in	\
		config-name.in Makefile.in sysdep.h set-hooks.h		\
		libc-symbols.h version.h shlib-versions rpm/Makefile	\
		rpm/template rpm/rpmrc glibcbug.in abi-tags stub-tag.h	\
		test-skeleton.c include/des.h include/libc-internal.h	\
		include/shlib-compat.h include/pthread.h Versions.def	\
		cppflags-iterator.mk tls.make.c				\
		include/stubs-prologue.h include/gnu/stubs.h		\
		include/atomic.h bits/atomic.h				\
		INTERFACE CONFORMANCE NAMESPACE LICENSES	        \
		$(addprefix scripts/,					\
			    rellns-sh config.sub config.guess		\
			    mkinstalldirs move-if-change install-sh	\
			    test-installation.pl gen-FAQ.pl versions.awk\
			    gen-sorted.awk abi-versions.awk abilist.awk	\
			    firstversions.awk documented.sh cpp		\
			    output-format.sed gen-as-const.awk		\
			    merge-abilist.awk extract-abilist.awk	\
			    rpm2dynsym.sh				\
			    )						\
		$(wildcard scripts/data/*.data)				\
		$(wildcard abilist/*.abilist)

distribute := $(strip $(distribute))
generated := $(generated) stubs.h

README: README.template version.h
	-rm -f $@
	sed -e 's/RELEASE/$(release)/' -e 's/VERSION/$(version)/' < $< > $@
# Make it unwritable so I won't change it by mistake.
	chmod 444 $@
ifeq ($(with-cvs),yes)
	test ! -d CVS || cvs $(CVSOPTS) commit -m'Remade for $(release)-$(version)' $@
endif

define format-me
@rm -f $@
makeinfo --no-validate --no-warn --no-headers $< -o $@
-chmod a-w $@
endef
INSTALL: manual/install.texi; $(format-me)
NOTES: manual/creature.texi; $(format-me)
manual/dir-add.texi manual/dir-add.info: FORCE
	$(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
FAQ: scripts/gen-FAQ.pl FAQ.in
	$(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
ifeq ($(with-cvs),yes)
	test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated:  $(PERL) $^' $@
endif
FORCE:

rpm/%: subdir_distinfo
	$(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)

iconvdata/% localedata/% po/% manual/%:
	$(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)

# glibc 2.0 contains some header files which aren't used with glibc 2.1
# anymore.
# These rules should remove those headers
ifeq (,$(install_root))
ifeq ($(old-glibc-headers),yes)
install: remove-old-headers
endif
endif

headers2_0 := 	__math.h bytesex.h confname.h direntry.h elfclass.h  	\
		errnos.h fcntlbits.h huge_val.h ioctl-types.h 		\
		ioctls.h iovec.h jmp_buf.h libc-lock.h local_lim.h 	\
		mathcalls.h mpool.h nan.h ndbm.h posix1_lim.h  		\
		posix2_lim.h posix_opt.h resourcebits.h schedbits.h 	\
		selectbits.h semaphorebits.h sigaction.h sigcontext.h 	\
		signum.h sigset.h sockaddrcom.h socketbits.h stab.def 	\
		statbuf.h statfsbuf.h stdio-lock.h stdio_lim.h 		\
		syscall-list.h termbits.h timebits.h ustatbits.h 	\
		utmpbits.h utsnamelen.h waitflags.h waitstatus.h 	\
		xopen_lim.h gnu/types.h sys/ipc_buf.h 			\
		sys/kernel_termios.h sys/msq_buf.h sys/sem_buf.h 	\
		sys/shm_buf.h sys/socketcall.h sigstack.h

.PHONY: remove-old-headers
remove-old-headers:
	rm -f $(addprefix $(inst_includedir)/, $(headers2_0))