glibc/Makefile
Joseph Myers 8e2f7c6811 Use -Wold-style-definition.
This patch makes glibc build with -Wold-style-definition to avoid
old-style function definitions creeping back in by accident.

Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).  Also tested build for arm,
mips64 and powerpc32.  Hopefully there aren't any remaining
system-specific files with old-style definitions whose formatting
evaded my searches, but if there are, they will be easy to fix.

	* Makeconfig (+gccwarn-c): Add -Wold-style-definition.
	* Makefile ($(objpfx)c++-types-check.out): Filter out
	$(+gccwarn-c) instead of -Wstrict-prototypes.
2015-10-21 15:14:13 +00:00

448 lines
15 KiB
Makefile
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# Copyright (C) 1991-2015 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, see
# <http://www.gnu.org/licenses/>.
#
# 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)
define autoconf-it
@-rm -f $@.new
$(AUTOCONF) $(ACFLAGS) $< > $@.new
chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
mv -f $@.new $@
endef
configure: configure.ac aclocal.m4; $(autoconf-it)
%/configure: %/configure.ac aclocal.m4; $(autoconf-it)
%/preconfigure: %/preconfigure.ac 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_update-abi subdir_check-abi \
subdir_echo-headers \
subdir_install \
subdir_objs subdir_stubs subdir_testclean \
$(addprefix install-, no-libc.a bin lib data headers others)
headers := limits.h values.h features.h gnu-versions.h \
bits/xopen_lim.h gnu/libc-version.h stdc-predef.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 = $(inst_includedir)/gnu/stubs.h
install-bin-script =
ifeq (yes,$(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 $(elf-objpfx)ldconfig || LC_ALL=C \
$(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
$(slibdir) $(libdir)
ifneq (no,$(PERL))
ifeq (/usr,$(prefix))
ifeq (,$(install_root))
LD_SO=$(ld.so-version) CC="$(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 $(common-objpfx)linkobj/libc.so
endif # $(build-shared)
# 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 'builddir=`dirname "$$0"`'; \
echo 'GCONV_PATH="$${builddir}/iconvdata" \'; \
echo 'exec $(subst $(common-objdir),"$${builddir}",\
$(test-program-prefix)) $${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)
ifndef abi-variants
installed-stubs = $(inst_includedir)/gnu/stubs.h
else
installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
$(inst_includedir)/gnu/stubs.h: $(+force)
$(make-target-directory)
{ \
echo '/* This file is automatically generated.';\
echo " This file selects the right generated file of \`__stub_FUNCTION' macros";\
echo ' based on the architecture being compiled for. */'; \
echo ''; \
$(foreach h,$(abi-includes), echo '#include <$(h)>';) \
echo ''; \
$(foreach v,$(abi-variants),\
$(if $(abi-$(v)-condition),\
echo '#if $(abi-$(v)-condition)'; \
echo '# include <gnu/stubs-$(v).h>'); \
$(if $(abi-$(v)-condition),echo '#endif';) \
rm -f $(@:.d=.h).new$(v); \
) \
} > $(@:.d=.h).new
mv -f $(@:.d=.h).new $(@:.d=.h)
install-others-nosubdir: $(installed-stubs)
endif
# 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.
$(installed-stubs): 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
# 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) $(subdir-target-args) $(@F)
define subdir-target-args
subdir=$(@D)$(if $($(@D)-srcdir),\
-C $($(@D)-srcdir) ..=`pwd`/,\
-C $(@D) ..=../)
endef
.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-special += $(objpfx)c++-types-check.out $(objpfx)check-local-headers.out
ifneq ($(CXX),no)
vpath c++-types.data $(+sysdep_dirs)
$(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu99 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
$(evaluate-test)
endif
$(objpfx)check-local-headers.out: scripts/check-local-headers.sh
AWK='$(AWK)' scripts/check-local-headers.sh \
"$(includedir)" "$(objpfx)" < /dev/null > $@; \
$(evaluate-test)
ifneq ($(PERL),no)
installed-headers = argp/argp.h assert/assert.h catgets/nl_types.h \
crypt/crypt.h ctype/ctype.h debug/execinfo.h \
dirent/dirent.h dlfcn/dlfcn.h elf/elf.h elf/link.h \
gmon/sys/gmon.h gmon/sys/gmon_out.h gmon/sys/profil.h \
grp/grp.h gshadow/gshadow.h iconv/iconv.h iconv/gconv.h \
$(wildcard inet/netinet/*.h) \
$(wildcard inet/arpa/*.h inet/protocols/*.h) \
inet/aliases.h inet/ifaddrs.h inet/netinet/ip6.h \
inet/netinet/icmp6.h intl/libintl.h io/sys/stat.h \
io/sys/statfs.h io/sys/vfs.h io/sys/statvfs.h \
io/fcntl.h io/sys/fcntl.h io/poll.h io/sys/poll.h \
io/utime.h io/ftw.h io/fts.h io/sys/sendfile.h \
libio/stdio.h libio/libio.h locale/locale.h \
locale/langinfo.h locale/xlocale.h login/utmp.h \
login/lastlog.h login/pty.h malloc/malloc.h \
malloc/obstack.h malloc/mcheck.h math/math.h \
math/complex.h math/fenv.h math/tgmath.h misc/sys/uio.h \
$(wildcard nis/rpcsvc/*.h) nptl_db/thread_db.h \
sysdeps/nptl/pthread.h sysdeps/pthread/semaphore.h \
nss/nss.h posix/sys/utsname.h posix/sys/times.h \
posix/sys/wait.h posix/sys/types.h posix/unistd.h \
posix/glob.h posix/regex.h posix/wordexp.h posix/fnmatch.h\
posix/getopt.h posix/tar.h posix/sys/unistd.h \
posix/sched.h posix/re_comp.h posix/wait.h \
posix/cpio.h posix/spawn.h pwd/pwd.h resolv/resolv.h \
resolv/netdb.h $(wildcard resolv/arpa/*.h) \
resource/sys/resource.h resource/sys/vlimit.h \
resource/sys/vtimes.h resource/ulimit.h rt/aio.h \
rt/mqueue.h setjmp/setjmp.h shadow/shadow.h \
signal/signal.h signal/sys/signal.h socket/sys/socket.h \
socket/sys/un.h stdio-common/printf.h \
stdio-common/stdio_ext.h stdlib/stdlib.h stdlib/alloca.h \
stdlib/monetary.h stdlib/fmtmsg.h stdlib/ucontext.h \
sysdeps/generic/inttypes.h sysdeps/generic/stdint.h \
stdlib/errno.h stdlib/sys/errno.h string/string.h \
string/strings.h string/memory.h string/endian.h \
string/argz.h string/envz.h string/byteswap.h \
$(wildcard sunrpc/rpc/*.h sunrpc/rpcsvc/*.h) \
sysvipc/sys/ipc.h sysvipc/sys/msg.h sysvipc/sys/sem.h \
sysvipc/sys/shm.h termios/termios.h \
termios/sys/termios.h termios/sys/ttychars.h time/time.h \
time/sys/time.h time/sys/timeb.h wcsmbs/wchar.h \
wctype/wctype.h
tests-special += $(objpfx)begin-end-check.out
$(objpfx)begin-end-check.out: scripts/begin-end-check.pl
$(PERL) scripts/begin-end-check.pl $(installed-headers) > $@; \
$(evaluate-test)
endif
define summarize-tests
@egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
@echo "Summary of test results$2:"
@sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
@! egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1
endef
tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
tests: $(tests-special)
$(..)scripts/merge-test-results.sh -s $(objpfx) "" \
$(sort $(tests-special-notdir:.out=)) \
> $(objpfx)subdir-tests.sum
$(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
$(sort $(subdirs) .) \
> $(objpfx)tests.sum
$(call summarize-tests,tests.sum)
xtests:
$(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
$(sort $(subdirs)) \
> $(objpfx)xtests.sum
$(call summarize-tests,xtests.sum, for extra tests)
# The realclean target is just like distclean for the parent, but we want
# the subdirs to know the difference in case they care.
realclean distclean: parent-clean
# This is done this way rather than having `subdir_distclean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
@$(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)
ifdef objdir
-rm -f $(objpfx)Makefile
endif
-rm -f $(sysdep-$(distclean-1))
# Make the TAGS file for Emacs users.
.PHONY: TAGS
TAGS:
scripts/list-sources.sh | sed -n -e '/Makefile/p' \
$(foreach S,[chsSyl] cxx sh bash pl,\
$(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
| $(ETAGS) -o $@ -
# Make the distribution tarfile.
.PHONY: dist dist-prepare
generated := $(generated) stubs.h
files-for-dist := README INSTALL configure ChangeLog NEWS
# Regenerate stuff, then error if these things are not committed yet.
dist-prepare: $(files-for-dist)
conf=`find sysdeps $(addsuffix /sysdeps,$(sysdeps-add-ons)) \
-name configure`; \
$(MAKE) $$conf && \
git diff --stat HEAD -- $^ $$conf \
| $(AWK) '{ print; rc=1 } END { exit rc }'
%.tar: FORCE
git archive --prefix=$*/ $* > $@.new
mv -f $@.new $@
# Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
ifneq (,$(strip $(dist-version)))
dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
md5sum $^
else
dist: dist-prepare
@if v=`git describe`; then \
echo Distribution version $$v; \
$(MAKE) dist dist-version=$$v; \
else \
false; \
fi
endif
INSTALL: manual/install-plain.texi manual/macros.texi \
$(common-objpfx)manual/pkgvers.texi manual/install.texi
makeinfo --no-validate --plaintext --no-number-sections \
-I$(common-objpfx)manual $< -o $@-tmp
$(AWK) 'NF == 0 { ++n; next } \
NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
< $@-tmp > $@-tmp2
rm -f $@-tmp
-chmod a-w $@-tmp2
mv -f $@-tmp2 $@
$(common-objpfx)manual/%: FORCE
$(MAKE) $(PARALLELMFLAGS) -C manual $@
FORCE:
iconvdata/% localedata/% po/%: FORCE
$(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))