CVE-2015-1472: wscanf allocates too little memory
[glibc.git] / Makefile
blob17e796fe1bb1c6590235c20b99476d5e8098c161
1 # Copyright (C) 1991-2015 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 # Master Makefile for the GNU C library
21 ifneq (,)
22 This makefile requires GNU Make.
23 endif
25 include Makeconfig
28 # This is the default target; it makes everything except the tests.
29 .PHONY: all
30 all: lib others
32 ifneq ($(AUTOCONF),no)
34 define autoconf-it
35 @-rm -f $@.new
36 $(AUTOCONF) $(ACFLAGS) $< > $@.new
37 chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
38 mv -f $@.new $@
39 endef
41 configure: configure.ac aclocal.m4; $(autoconf-it)
42 %/configure: %/configure.ac aclocal.m4; $(autoconf-it)
43 %/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it)
45 endif # $(AUTOCONF) = no
48 # We don't want to run anything here in parallel.
49 .NOTPARALLEL:
51 # These are the targets that are made by making them in each subdirectory.
52 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean \
53 subdir_clean subdir_distclean subdir_realclean \
54 tests xtests \
55 subdir_update-abi subdir_check-abi \
56 subdir_echo-headers \
57 subdir_install \
58 subdir_objs subdir_stubs subdir_testclean \
59 $(addprefix install-, no-libc.a bin lib data headers others)
61 headers := limits.h values.h features.h gnu-versions.h bits/libc-lock.h \
62 bits/xopen_lim.h gnu/libc-version.h stdc-predef.h
64 echo-headers: subdir_echo-headers
66 # The headers are in the include directory.
67 subdir-dirs = include
68 vpath %.h $(subdir-dirs)
70 # What to install.
71 install-others = $(inst_includedir)/gnu/stubs.h
72 install-bin-script =
74 ifeq (yes,$(build-shared))
75 headers += gnu/lib-names.h
76 endif
78 include Makerules
80 ifeq ($(build-programs),yes)
81 others: $(addprefix $(objpfx),$(install-bin-script))
82 endif
84 # Install from subdirectories too.
85 install: subdir_install
87 # Explicit dependency so that `make install-headers' works
88 install-headers: install-headers-nosubdir
90 # Make sure that the dynamic linker is installed before libc.
91 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
93 .PHONY: elf/ldso_install
94 elf/ldso_install:
95 $(MAKE) -C $(@D) $(@F)
97 # Create links for shared libraries using the `ldconfig' program if possible.
98 # Ignore the error if we cannot update /etc/ld.so.cache.
99 ifeq (no,$(cross-compiling))
100 ifeq (yes,$(build-shared))
101 install: install-symbolic-link
102 .PHONY: install-symbolic-link
103 install-symbolic-link: subdir_install
104 $(symbolic-link-prog) $(symbolic-link-list)
105 rm -f $(symbolic-link-list)
107 install:
108 -test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
109 $(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
110 $(slibdir) $(libdir)
111 ifneq (no,$(PERL))
112 ifeq (/usr,$(prefix))
113 ifeq (,$(install_root))
114 LD_SO=$(ld.so-version) CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
115 endif
116 endif
117 endif
118 endif
119 endif
121 # Build subdirectory lib objects.
122 lib-noranlib: subdir_lib
124 ifeq (yes,$(build-shared))
125 # Build the shared object from the PIC object library.
126 lib: $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so
127 endif # $(build-shared)
130 # This is a handy script for running any dynamically linked program against
131 # the current libc build for testing.
132 $(common-objpfx)testrun.sh: $(common-objpfx)config.make \
133 $(..)Makeconfig $(..)Makefile
134 (echo '#!/bin/sh'; \
135 echo 'builddir=`dirname "$$0"`'; \
136 echo 'GCONV_PATH="$${builddir}/iconvdata" \'; \
137 echo 'exec $(subst $(common-objdir),"$${builddir}",\
138 $(test-program-prefix)) $${1+"$$@"}'; \
139 ) > $@T
140 chmod a+x $@T
141 mv -f $@T $@
142 postclean-generated += testrun.sh
144 others: $(common-objpfx)testrun.sh
146 # Makerules creates a file `stubs' in each subdirectory, which
147 # contains `#define __stub_FUNCTION' for each function defined in that
148 # directory which is a stub.
149 # Here we paste all of these together into <gnu/stubs.h>.
151 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
153 ifndef abi-variants
154 installed-stubs = $(inst_includedir)/gnu/stubs.h
155 else
156 installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
158 $(inst_includedir)/gnu/stubs.h: $(+force)
159 $(make-target-directory)
161 echo '/* This file is automatically generated.';\
162 echo " This file selects the right generated file of \`__stub_FUNCTION' macros";\
163 echo ' based on the architecture being compiled for. */'; \
164 echo ''; \
165 $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
166 echo ''; \
167 $(foreach v,$(abi-variants),\
168 $(if $(abi-$(v)-condition),\
169 echo '#if $(abi-$(v)-condition)'; \
170 echo '# include <gnu/stubs-$(v).h>'); \
171 $(if $(abi-$(v)-condition),echo '#endif';) \
172 rm -f $(@:.d=.h).new$(v); \
174 } > $(@:.d=.h).new
175 mv -f $(@:.d=.h).new $(@:.d=.h)
177 install-others-nosubdir: $(installed-stubs)
178 endif
181 # Since stubs.h is never needed when building the library, we simplify the
182 # hairy installation process by producing it in place only as the last part
183 # of the top-level `make install'. It depends on subdir_install, which
184 # iterates over all the subdirs; subdir_install in each subdir depends on
185 # the subdir's stubs file. Having more direct dependencies would result in
186 # extra iterations over the list for subdirs and many recursive makes.
187 $(installed-stubs): include/stubs-prologue.h subdir_install
188 $(make-target-directory)
189 @rm -f $(objpfx)stubs.h
190 (sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
191 if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
192 then echo 'stubs.h unchanged'; \
193 else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
194 rm -f $(objpfx)stubs.h
196 # This makes the Info or DVI file of the documentation from the Texinfo source.
197 .PHONY: info dvi pdf html
198 info dvi pdf html:
199 $(MAKE) $(PARALLELMFLAGS) -C manual $@
201 # This makes all the subdirectory targets.
203 # For each target, make it depend on DIR/target for each subdirectory DIR.
204 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
206 # Compute a list of all those targets.
207 all-subdirs-targets := $(foreach dir,$(subdirs),\
208 $(addprefix $(dir)/,$(+subdir_targets)))
210 # The action for each of those is to cd into the directory and make the
211 # target there.
212 $(all-subdirs-targets):
213 $(MAKE) $(PARALLELMFLAGS) $(subdir-target-args) $(@F)
215 define subdir-target-args
216 subdir=$(@D)$(if $($(@D)-srcdir),\
217 -C $($(@D)-srcdir) ..=`pwd`/,\
218 -C $(@D) ..=../)
219 endef
221 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
223 # Targets to clean things up to various degrees.
225 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
226 tests-clean
228 # Subroutines of all cleaning targets.
229 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
230 -rm -f $(foreach o,$(object-suffixes-for-libc),\
231 $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
232 $(addprefix $(objpfx),$(install-lib))
233 parent-clean: parent-mostlyclean common-clean
235 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
236 $(addprefix $(objpfx),sysd-dirs sysd-rules) \
237 $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
239 clean: parent-clean
240 # This is done this way rather than having `subdir_clean' be a
241 # dependency of this target so that libc.a will be removed before the
242 # subdirectories are dealt with and so they won't try to remove object
243 # files from it when it's going to be removed anyway.
244 @$(MAKE) subdir_clean no_deps=t
245 -rm -f $(postclean)
246 mostlyclean: parent-mostlyclean
247 @$(MAKE) subdir_mostlyclean no_deps=t
248 -rm -f $(postclean)
250 tests-clean:
251 @$(MAKE) subdir_testclean no_deps=t
253 tests-special += $(objpfx)c++-types-check.out $(objpfx)check-local-headers.out
254 ifneq ($(CXX),no)
256 vpath c++-types.data $(+sysdep_dirs)
258 $(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
259 scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu99 -Wstrict-prototypes,$(CFLAGS)) $(CPPFLAGS) > $@; \
260 $(evaluate-test)
261 endif
263 $(objpfx)check-local-headers.out: scripts/check-local-headers.sh
264 AWK='$(AWK)' scripts/check-local-headers.sh \
265 "$(includedir)" "$(objpfx)" > $@; \
266 $(evaluate-test)
268 ifneq ($(PERL),no)
269 installed-headers = argp/argp.h assert/assert.h catgets/nl_types.h \
270 crypt/crypt.h ctype/ctype.h debug/execinfo.h \
271 dirent/dirent.h dlfcn/dlfcn.h elf/elf.h elf/link.h \
272 gmon/sys/gmon.h gmon/sys/gmon_out.h gmon/sys/profil.h \
273 grp/grp.h gshadow/gshadow.h iconv/iconv.h iconv/gconv.h \
274 $(wildcard inet/netinet/*.h) \
275 $(wildcard inet/arpa/*.h inet/protocols/*.h) \
276 inet/aliases.h inet/ifaddrs.h inet/netinet/ip6.h \
277 inet/netinet/icmp6.h intl/libintl.h io/sys/stat.h \
278 io/sys/statfs.h io/sys/vfs.h io/sys/statvfs.h \
279 io/fcntl.h io/sys/fcntl.h io/poll.h io/sys/poll.h \
280 io/utime.h io/ftw.h io/fts.h io/sys/sendfile.h \
281 libio/stdio.h libio/libio.h locale/locale.h \
282 locale/langinfo.h locale/xlocale.h login/utmp.h \
283 login/lastlog.h login/pty.h malloc/malloc.h \
284 malloc/obstack.h malloc/mcheck.h math/math.h \
285 math/complex.h math/fenv.h math/tgmath.h misc/sys/uio.h \
286 $(wildcard nis/rpcsvc/*.h) nptl_db/thread_db.h \
287 sysdeps/nptl/pthread.h sysdeps/pthread/semaphore.h \
288 nss/nss.h posix/sys/utsname.h posix/sys/times.h \
289 posix/sys/wait.h posix/sys/types.h posix/unistd.h \
290 posix/glob.h posix/regex.h posix/wordexp.h posix/fnmatch.h\
291 posix/getopt.h posix/tar.h posix/sys/unistd.h \
292 posix/sched.h posix/re_comp.h posix/wait.h \
293 posix/cpio.h posix/spawn.h pwd/pwd.h resolv/resolv.h \
294 resolv/netdb.h $(wildcard resolv/arpa/*.h) \
295 resource/sys/resource.h resource/sys/vlimit.h \
296 resource/sys/vtimes.h resource/ulimit.h rt/aio.h \
297 rt/mqueue.h setjmp/setjmp.h shadow/shadow.h \
298 signal/signal.h signal/sys/signal.h socket/sys/socket.h \
299 socket/sys/un.h stdio-common/printf.h \
300 stdio-common/stdio_ext.h stdlib/stdlib.h stdlib/alloca.h \
301 stdlib/monetary.h stdlib/fmtmsg.h stdlib/ucontext.h \
302 sysdeps/generic/inttypes.h sysdeps/generic/stdint.h \
303 stdlib/errno.h stdlib/sys/errno.h string/string.h \
304 string/strings.h string/memory.h string/endian.h \
305 string/argz.h string/envz.h string/byteswap.h \
306 $(wildcard sunrpc/rpc/*.h sunrpc/rpcsvc/*.h) \
307 sysvipc/sys/ipc.h sysvipc/sys/msg.h sysvipc/sys/sem.h \
308 sysvipc/sys/shm.h termios/termios.h \
309 termios/sys/termios.h termios/sys/ttychars.h time/time.h \
310 time/sys/time.h time/sys/timeb.h wcsmbs/wchar.h \
311 wctype/wctype.h
313 tests-special += $(objpfx)begin-end-check.out
314 $(objpfx)begin-end-check.out: scripts/begin-end-check.pl
315 $(PERL) scripts/begin-end-check.pl $(installed-headers) > $@; \
316 $(evaluate-test)
317 endif
319 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
320 tests: $(tests-special)
321 $(..)scripts/merge-test-results.sh -s $(objpfx) "" \
322 $(sort $(tests-special-notdir:.out=)) \
323 > $(objpfx)subdir-tests.sum
324 $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
325 $(sort $(subdirs) .) \
326 > $(objpfx)tests.sum
327 @grep '^ERROR:' $(objpfx)tests.sum || true
328 @grep '^FAIL:' $(objpfx)tests.sum || true
329 @echo "Summary of test results:"
330 @sed 's/:.*//' < $(objpfx)tests.sum | sort | uniq -c
331 @if grep -q '^ERROR:' $(objpfx)tests.sum; then exit 1; fi
332 @if grep -q '^FAIL:' $(objpfx)tests.sum; then exit 1; fi
333 xtests:
334 $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
335 $(sort $(subdirs)) \
336 > $(objpfx)xtests.sum
337 @grep '^ERROR:' $(objpfx)xtests.sum || true
338 @grep '^FAIL:' $(objpfx)xtests.sum || true
339 @echo "Summary of test results for extra tests:"
340 @sed 's/:.*//' < $(objpfx)xtests.sum | sort | uniq -c
341 @if grep -q '^ERROR:' $(objpfx)xtests.sum; then exit 1; fi
342 @if grep -q '^FAIL:' $(objpfx)xtests.sum; then exit 1; fi
344 # The realclean target is just like distclean for the parent, but we want
345 # the subdirs to know the difference in case they care.
346 realclean distclean: parent-clean
347 # This is done this way rather than having `subdir_distclean' be a
348 # dependency of this target so that libc.a will be removed before the
349 # subdirectories are dealt with and so they won't try to remove object
350 # files from it when it's going to be removed anyway.
351 @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
352 sysdep-subdirs="$(sysdep-subdirs)"
353 -rm -f $(postclean)
355 # Subroutine of distclean and realclean.
356 distclean-1: subdir_$(distclean-1)
357 -rm -f $(config-generated)
358 -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
359 -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
360 ifdef objdir
361 -rm -f $(objpfx)Makefile
362 endif
363 -rm -f $(sysdep-$(distclean-1))
365 # Make the TAGS file for Emacs users.
367 .PHONY: TAGS
368 TAGS:
369 scripts/list-sources.sh | sed -n -e '/Makefile/p' \
370 $(foreach S,[chsSyl] cxx sh bash pl,\
371 $(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
372 | $(ETAGS) -o $@ -
374 # Make the distribution tarfile.
375 .PHONY: dist dist-prepare
377 generated := $(generated) stubs.h
379 files-for-dist := README INSTALL configure ChangeLog NEWS
381 # Regenerate stuff, then error if these things are not committed yet.
382 dist-prepare: $(files-for-dist)
383 conf=`find sysdeps $(addsuffix /sysdeps,$(sysdeps-add-ons)) \
384 -name configure`; \
385 $(MAKE) $$conf && \
386 git diff --stat HEAD -- $^ $$conf \
387 | $(AWK) '{ print; rc=1 } END { exit rc }'
389 %.tar: FORCE
390 git archive --prefix=$*/ $* > $@.new
391 mv -f $@.new $@
393 # Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
395 ifneq (,$(strip $(dist-version)))
396 dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
397 md5sum $^
398 else
399 dist: dist-prepare
400 @if v=`git describe`; then \
401 echo Distribution version $$v; \
402 $(MAKE) dist dist-version=$$v; \
403 else \
404 false; \
406 endif
408 INSTALL: manual/install-plain.texi manual/macros.texi \
409 $(common-objpfx)manual/pkgvers.texi manual/install.texi
410 makeinfo --no-validate --plaintext --no-number-sections \
411 -I$(common-objpfx)manual $< -o $@-tmp
412 $(AWK) 'NF == 0 { ++n; next } \
413 NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
414 < $@-tmp > $@-tmp2
415 rm -f $@-tmp
416 -chmod a-w $@-tmp2
417 mv -f $@-tmp2 $@
418 $(common-objpfx)manual/%: FORCE
419 $(MAKE) $(PARALLELMFLAGS) -C manual $@
420 FORCE:
422 iconvdata/% localedata/% po/%: FORCE
423 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
425 # glibc 2.0 contains some header files which aren't used with glibc 2.1
426 # anymore.
427 # These rules should remove those headers
428 ifeq (,$(install_root))
429 ifeq ($(old-glibc-headers),yes)
430 install: remove-old-headers
431 endif
432 endif
434 headers2_0 := __math.h bytesex.h confname.h direntry.h elfclass.h \
435 errnos.h fcntlbits.h huge_val.h ioctl-types.h \
436 ioctls.h iovec.h jmp_buf.h libc-lock.h local_lim.h \
437 mathcalls.h mpool.h nan.h ndbm.h posix1_lim.h \
438 posix2_lim.h posix_opt.h resourcebits.h schedbits.h \
439 selectbits.h semaphorebits.h sigaction.h sigcontext.h \
440 signum.h sigset.h sockaddrcom.h socketbits.h stab.def \
441 statbuf.h statfsbuf.h stdio-lock.h stdio_lim.h \
442 syscall-list.h termbits.h timebits.h ustatbits.h \
443 utmpbits.h utsnamelen.h waitflags.h waitstatus.h \
444 xopen_lim.h gnu/types.h sys/ipc_buf.h \
445 sys/kernel_termios.h sys/msq_buf.h sys/sem_buf.h \
446 sys/shm_buf.h sys/socketcall.h sigstack.h
448 .PHONY: remove-old-headers
449 remove-old-headers:
450 rm -f $(addprefix $(inst_includedir)/, $(headers2_0))