mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-03 04:01:43 +08:00
8e2f7c6811
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.
448 lines
15 KiB
Makefile
448 lines
15 KiB
Makefile
# Copyright (C) 1991-2015 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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#
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# Master Makefile for the GNU C library
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#
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ifneq (,)
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This makefile requires GNU Make.
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endif
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include Makeconfig
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# This is the default target; it makes everything except the tests.
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.PHONY: all
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all: lib others
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ifneq ($(AUTOCONF),no)
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define autoconf-it
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@-rm -f $@.new
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$(AUTOCONF) $(ACFLAGS) $< > $@.new
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chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
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mv -f $@.new $@
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endef
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configure: configure.ac aclocal.m4; $(autoconf-it)
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%/configure: %/configure.ac aclocal.m4; $(autoconf-it)
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%/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it)
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endif # $(AUTOCONF) = no
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# We don't want to run anything here in parallel.
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.NOTPARALLEL:
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# These are the targets that are made by making them in each subdirectory.
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+subdir_targets := subdir_lib objects objs others subdir_mostlyclean \
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subdir_clean subdir_distclean subdir_realclean \
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tests xtests \
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subdir_update-abi subdir_check-abi \
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subdir_echo-headers \
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subdir_install \
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subdir_objs subdir_stubs subdir_testclean \
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$(addprefix install-, no-libc.a bin lib data headers others)
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headers := limits.h values.h features.h gnu-versions.h \
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bits/xopen_lim.h gnu/libc-version.h stdc-predef.h
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echo-headers: subdir_echo-headers
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# The headers are in the include directory.
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subdir-dirs = include
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vpath %.h $(subdir-dirs)
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# What to install.
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install-others = $(inst_includedir)/gnu/stubs.h
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install-bin-script =
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ifeq (yes,$(build-shared))
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headers += gnu/lib-names.h
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endif
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include Makerules
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ifeq ($(build-programs),yes)
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others: $(addprefix $(objpfx),$(install-bin-script))
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endif
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# Install from subdirectories too.
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install: subdir_install
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# Explicit dependency so that `make install-headers' works
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install-headers: install-headers-nosubdir
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# Make sure that the dynamic linker is installed before libc.
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$(inst_slibdir)/libc-$(version).so: elf/ldso_install
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.PHONY: elf/ldso_install
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elf/ldso_install:
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$(MAKE) -C $(@D) $(@F)
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# Create links for shared libraries using the `ldconfig' program if possible.
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# Ignore the error if we cannot update /etc/ld.so.cache.
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ifeq (no,$(cross-compiling))
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ifeq (yes,$(build-shared))
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install: install-symbolic-link
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.PHONY: install-symbolic-link
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install-symbolic-link: subdir_install
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$(symbolic-link-prog) $(symbolic-link-list)
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rm -f $(symbolic-link-list)
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install:
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-test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
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$(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
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$(slibdir) $(libdir)
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ifneq (no,$(PERL))
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ifeq (/usr,$(prefix))
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ifeq (,$(install_root))
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LD_SO=$(ld.so-version) CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
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endif
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endif
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endif
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endif
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endif
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# Build subdirectory lib objects.
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lib-noranlib: subdir_lib
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ifeq (yes,$(build-shared))
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# Build the shared object from the PIC object library.
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lib: $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so
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endif # $(build-shared)
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# This is a handy script for running any dynamically linked program against
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# the current libc build for testing.
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$(common-objpfx)testrun.sh: $(common-objpfx)config.make \
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$(..)Makeconfig $(..)Makefile
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(echo '#!/bin/sh'; \
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echo 'builddir=`dirname "$$0"`'; \
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echo 'GCONV_PATH="$${builddir}/iconvdata" \'; \
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echo 'exec $(subst $(common-objdir),"$${builddir}",\
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$(test-program-prefix)) $${1+"$$@"}'; \
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) > $@T
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chmod a+x $@T
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mv -f $@T $@
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postclean-generated += testrun.sh
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others: $(common-objpfx)testrun.sh
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# Makerules creates a file `stubs' in each subdirectory, which
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# contains `#define __stub_FUNCTION' for each function defined in that
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# directory which is a stub.
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# Here we paste all of these together into <gnu/stubs.h>.
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subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
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ifndef abi-variants
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installed-stubs = $(inst_includedir)/gnu/stubs.h
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else
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installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
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$(inst_includedir)/gnu/stubs.h: $(+force)
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$(make-target-directory)
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{ \
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echo '/* This file is automatically generated.';\
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echo " This file selects the right generated file of \`__stub_FUNCTION' macros";\
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echo ' based on the architecture being compiled for. */'; \
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echo ''; \
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$(foreach h,$(abi-includes), echo '#include <$(h)>';) \
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echo ''; \
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$(foreach v,$(abi-variants),\
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$(if $(abi-$(v)-condition),\
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echo '#if $(abi-$(v)-condition)'; \
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echo '# include <gnu/stubs-$(v).h>'); \
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$(if $(abi-$(v)-condition),echo '#endif';) \
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rm -f $(@:.d=.h).new$(v); \
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) \
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} > $(@:.d=.h).new
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mv -f $(@:.d=.h).new $(@:.d=.h)
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install-others-nosubdir: $(installed-stubs)
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endif
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# Since stubs.h is never needed when building the library, we simplify the
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# hairy installation process by producing it in place only as the last part
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# of the top-level `make install'. It depends on subdir_install, which
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# iterates over all the subdirs; subdir_install in each subdir depends on
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# the subdir's stubs file. Having more direct dependencies would result in
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# extra iterations over the list for subdirs and many recursive makes.
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$(installed-stubs): include/stubs-prologue.h subdir_install
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$(make-target-directory)
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@rm -f $(objpfx)stubs.h
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(sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
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if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
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then echo 'stubs.h unchanged'; \
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else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
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rm -f $(objpfx)stubs.h
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# This makes the Info or DVI file of the documentation from the Texinfo source.
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.PHONY: info dvi pdf html
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info dvi pdf html:
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$(MAKE) $(PARALLELMFLAGS) -C manual $@
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# This makes all the subdirectory targets.
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# For each target, make it depend on DIR/target for each subdirectory DIR.
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$(+subdir_targets): %: $(addsuffix /%,$(subdirs))
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# Compute a list of all those targets.
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all-subdirs-targets := $(foreach dir,$(subdirs),\
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$(addprefix $(dir)/,$(+subdir_targets)))
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# The action for each of those is to cd into the directory and make the
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# target there.
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$(all-subdirs-targets):
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$(MAKE) $(PARALLELMFLAGS) $(subdir-target-args) $(@F)
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define subdir-target-args
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subdir=$(@D)$(if $($(@D)-srcdir),\
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-C $($(@D)-srcdir) ..=`pwd`/,\
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-C $(@D) ..=../)
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endef
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.PHONY: $(+subdir_targets) $(all-subdirs-targets)
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# Targets to clean things up to various degrees.
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.PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
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tests-clean
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# Subroutines of all cleaning targets.
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parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
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-rm -f $(foreach o,$(object-suffixes-for-libc),\
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$(common-objpfx)$(patsubst %,$(libtype$o),c)) \
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$(addprefix $(objpfx),$(install-lib))
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parent-clean: parent-mostlyclean common-clean
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postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
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$(addprefix $(objpfx),sysd-dirs sysd-rules) \
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$(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
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clean: parent-clean
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# This is done this way rather than having `subdir_clean' be a
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# dependency of this target so that libc.a will be removed before the
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# subdirectories are dealt with and so they won't try to remove object
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# files from it when it's going to be removed anyway.
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@$(MAKE) subdir_clean no_deps=t
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-rm -f $(postclean)
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mostlyclean: parent-mostlyclean
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@$(MAKE) subdir_mostlyclean no_deps=t
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-rm -f $(postclean)
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tests-clean:
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@$(MAKE) subdir_testclean no_deps=t
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tests-special += $(objpfx)c++-types-check.out $(objpfx)check-local-headers.out
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ifneq ($(CXX),no)
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vpath c++-types.data $(+sysdep_dirs)
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$(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
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scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu99 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
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$(evaluate-test)
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endif
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$(objpfx)check-local-headers.out: scripts/check-local-headers.sh
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AWK='$(AWK)' scripts/check-local-headers.sh \
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"$(includedir)" "$(objpfx)" < /dev/null > $@; \
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$(evaluate-test)
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ifneq ($(PERL),no)
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installed-headers = argp/argp.h assert/assert.h catgets/nl_types.h \
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crypt/crypt.h ctype/ctype.h debug/execinfo.h \
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dirent/dirent.h dlfcn/dlfcn.h elf/elf.h elf/link.h \
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gmon/sys/gmon.h gmon/sys/gmon_out.h gmon/sys/profil.h \
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grp/grp.h gshadow/gshadow.h iconv/iconv.h iconv/gconv.h \
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$(wildcard inet/netinet/*.h) \
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$(wildcard inet/arpa/*.h inet/protocols/*.h) \
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inet/aliases.h inet/ifaddrs.h inet/netinet/ip6.h \
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inet/netinet/icmp6.h intl/libintl.h io/sys/stat.h \
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io/sys/statfs.h io/sys/vfs.h io/sys/statvfs.h \
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io/fcntl.h io/sys/fcntl.h io/poll.h io/sys/poll.h \
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io/utime.h io/ftw.h io/fts.h io/sys/sendfile.h \
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libio/stdio.h libio/libio.h locale/locale.h \
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locale/langinfo.h locale/xlocale.h login/utmp.h \
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login/lastlog.h login/pty.h malloc/malloc.h \
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malloc/obstack.h malloc/mcheck.h math/math.h \
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math/complex.h math/fenv.h math/tgmath.h misc/sys/uio.h \
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$(wildcard nis/rpcsvc/*.h) nptl_db/thread_db.h \
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sysdeps/nptl/pthread.h sysdeps/pthread/semaphore.h \
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nss/nss.h posix/sys/utsname.h posix/sys/times.h \
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posix/sys/wait.h posix/sys/types.h posix/unistd.h \
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posix/glob.h posix/regex.h posix/wordexp.h posix/fnmatch.h\
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posix/getopt.h posix/tar.h posix/sys/unistd.h \
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posix/sched.h posix/re_comp.h posix/wait.h \
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posix/cpio.h posix/spawn.h pwd/pwd.h resolv/resolv.h \
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resolv/netdb.h $(wildcard resolv/arpa/*.h) \
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resource/sys/resource.h resource/sys/vlimit.h \
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resource/sys/vtimes.h resource/ulimit.h rt/aio.h \
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rt/mqueue.h setjmp/setjmp.h shadow/shadow.h \
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signal/signal.h signal/sys/signal.h socket/sys/socket.h \
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socket/sys/un.h stdio-common/printf.h \
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stdio-common/stdio_ext.h stdlib/stdlib.h stdlib/alloca.h \
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stdlib/monetary.h stdlib/fmtmsg.h stdlib/ucontext.h \
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sysdeps/generic/inttypes.h sysdeps/generic/stdint.h \
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stdlib/errno.h stdlib/sys/errno.h string/string.h \
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string/strings.h string/memory.h string/endian.h \
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string/argz.h string/envz.h string/byteswap.h \
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$(wildcard sunrpc/rpc/*.h sunrpc/rpcsvc/*.h) \
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sysvipc/sys/ipc.h sysvipc/sys/msg.h sysvipc/sys/sem.h \
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sysvipc/sys/shm.h termios/termios.h \
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termios/sys/termios.h termios/sys/ttychars.h time/time.h \
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time/sys/time.h time/sys/timeb.h wcsmbs/wchar.h \
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wctype/wctype.h
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tests-special += $(objpfx)begin-end-check.out
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$(objpfx)begin-end-check.out: scripts/begin-end-check.pl
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$(PERL) scripts/begin-end-check.pl $(installed-headers) > $@; \
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$(evaluate-test)
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endif
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define summarize-tests
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@egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
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@echo "Summary of test results$2:"
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@sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
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@! egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1
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endef
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tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
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tests: $(tests-special)
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$(..)scripts/merge-test-results.sh -s $(objpfx) "" \
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$(sort $(tests-special-notdir:.out=)) \
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> $(objpfx)subdir-tests.sum
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$(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
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$(sort $(subdirs) .) \
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> $(objpfx)tests.sum
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$(call summarize-tests,tests.sum)
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xtests:
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$(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
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$(sort $(subdirs)) \
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> $(objpfx)xtests.sum
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$(call summarize-tests,xtests.sum, for extra tests)
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# The realclean target is just like distclean for the parent, but we want
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# the subdirs to know the difference in case they care.
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realclean distclean: parent-clean
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# This is done this way rather than having `subdir_distclean' be a
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# dependency of this target so that libc.a will be removed before the
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# subdirectories are dealt with and so they won't try to remove object
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# files from it when it's going to be removed anyway.
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@$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
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sysdep-subdirs="$(sysdep-subdirs)"
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-rm -f $(postclean)
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# Subroutine of distclean and realclean.
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distclean-1: subdir_$(distclean-1)
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-rm -f $(config-generated)
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-rm -f $(addprefix $(objpfx),config.status config.cache config.log)
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-rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
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ifdef objdir
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-rm -f $(objpfx)Makefile
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endif
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-rm -f $(sysdep-$(distclean-1))
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# Make the TAGS file for Emacs users.
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.PHONY: TAGS
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TAGS:
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scripts/list-sources.sh | sed -n -e '/Makefile/p' \
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$(foreach S,[chsSyl] cxx sh bash pl,\
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$(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
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| $(ETAGS) -o $@ -
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# Make the distribution tarfile.
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.PHONY: dist dist-prepare
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generated := $(generated) stubs.h
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files-for-dist := README INSTALL configure ChangeLog NEWS
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# Regenerate stuff, then error if these things are not committed yet.
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dist-prepare: $(files-for-dist)
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conf=`find sysdeps $(addsuffix /sysdeps,$(sysdeps-add-ons)) \
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-name configure`; \
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$(MAKE) $$conf && \
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git diff --stat HEAD -- $^ $$conf \
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| $(AWK) '{ print; rc=1 } END { exit rc }'
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%.tar: FORCE
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git archive --prefix=$*/ $* > $@.new
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mv -f $@.new $@
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# Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
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ifneq (,$(strip $(dist-version)))
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dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
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md5sum $^
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else
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dist: dist-prepare
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@if v=`git describe`; then \
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echo Distribution version $$v; \
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$(MAKE) dist dist-version=$$v; \
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else \
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false; \
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fi
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endif
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INSTALL: manual/install-plain.texi manual/macros.texi \
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$(common-objpfx)manual/pkgvers.texi manual/install.texi
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makeinfo --no-validate --plaintext --no-number-sections \
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-I$(common-objpfx)manual $< -o $@-tmp
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$(AWK) 'NF == 0 { ++n; next } \
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NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
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< $@-tmp > $@-tmp2
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rm -f $@-tmp
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-chmod a-w $@-tmp2
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mv -f $@-tmp2 $@
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$(common-objpfx)manual/%: FORCE
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$(MAKE) $(PARALLELMFLAGS) -C manual $@
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FORCE:
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iconvdata/% localedata/% po/%: FORCE
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$(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
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|
||
# glibc 2.0 contains some header files which aren't used with glibc 2.1
|
||
# anymore.
|
||
# These rules should remove those headers
|
||
ifeq (,$(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))
|