mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-01 05:33:36 +08:00
ad18dadec9
If building on a subset of architectures only, it is easy to miss
wrapper headers which are required by other architectures because
they lack the corresponding sysdeps header. The check ensures
that every installed header which is not itself a sysdeps header
has a header under include/ (that presumably wraps the header,
and perhaps also adding declarations and definitions for !_ISOMAC).
Also check for the absence of the sysdeps/generic/bits directory
removed in commit c72565e5f1, to make
accidental re-introduction more difficult.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
501 lines
16 KiB
Makefile
501 lines
16 KiB
Makefile
# Copyright (C) 1991-2019 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 # $(AUTOCONF) = no
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# We don't want to run anything here in parallel.
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.NOTPARALLEL:
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# These are the targets that are made by making them in each subdirectory.
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+subdir_targets := subdir_lib objects objs others subdir_mostlyclean \
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subdir_clean subdir_distclean subdir_realclean \
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tests xtests \
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subdir_update-abi subdir_check-abi \
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subdir_update-all-abi \
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subdir_echo-headers \
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subdir_install \
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subdir_objs subdir_stubs subdir_testclean \
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$(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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bits/libc-header-start.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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# Used to build testrun.sh.
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define testrun-script
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#!/bin/bash
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builddir=`dirname "$$0"`
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GCONV_PATH="$${builddir}/iconvdata"
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usage () {
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echo "usage: $$0 [--tool=strace] PROGRAM [ARGUMENTS...]" 2>&1
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echo " $$0 --tool=valgrind PROGRAM [ARGUMENTS...]" 2>&1
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exit 1
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}
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toolname=default
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while test $$# -gt 0 ; do
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case "$$1" in
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--tool=*)
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toolname="$${1:7}"
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shift
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;;
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--*)
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usage
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;;
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*)
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break
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;;
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esac
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done
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if test $$# -eq 0 ; then
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usage
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fi
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case "$$toolname" in
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default)
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exec $(subst $(common-objdir),"$${builddir}", $(test-program-prefix)) \
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$${1+"$$@"}
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;;
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strace)
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exec strace $(patsubst %, -E%, $(run-program-env)) \
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$(test-via-rtld-prefix) $${1+"$$@"}
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;;
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valgrind)
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exec env $(run-program-env) valgrind $(test-via-rtld-prefix) $${1+"$$@"}
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;;
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*)
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usage
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;;
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esac
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endef
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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 $(..)Makefile
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$(file >$@T,$(testrun-script))
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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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ifneq (,$(CXX))
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vpath c++-types.data $(+sysdep_dirs)
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tests-special += $(objpfx)c++-types-check.out
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$(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=gnu11 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
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$(evaluate-test)
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endif
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tests-special += $(objpfx)check-local-headers.out
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$(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 "$(headers)" ""
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# Special test of all the installed headers in this directory.
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tests-special += $(objpfx)check-installed-headers-c.out
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libof-check-installed-headers-c := testsuite
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$(objpfx)check-installed-headers-c.out: \
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scripts/check-installed-headers.sh $(headers)
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$(SHELL) $(..)scripts/check-installed-headers.sh c \
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"$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
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$(headers) > $@; \
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$(evaluate-test)
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ifneq "$(CXX)" ""
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tests-special += $(objpfx)check-installed-headers-cxx.out
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libof-check-installed-headers-cxx := testsuite
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$(objpfx)check-installed-headers-cxx.out: \
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scripts/check-installed-headers.sh $(headers)
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$(SHELL) $(..)scripts/check-installed-headers.sh c++ \
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"$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
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$(headers) > $@; \
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$(evaluate-test)
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endif # $(CXX)
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tests-special += $(objpfx)check-wrapper-headers.out
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$(objpfx)check-wrapper-headers.out: scripts/check-wrapper-headers.py $(headers)
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$(PYTHON) $< --root=. --subdir=. $(headers) \
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--generated $(common-generated) > $@; $(evaluate-test)
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endif # $(headers)
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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)$1
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endef
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# The intention here is to do ONE install of our build into the
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# testroot.pristine/ directory, then rsync (internal to
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# support/test-container) that to testroot.root/ at the start of each
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# test. That way we can promise each test a "clean" install, without
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# having to do the install for each test.
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#
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# In addition, we have to copy some files (which we build) into this
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# root in addition to what glibc installs. For example, many tests
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# require additional programs including /bin/sh, /bin/true, and
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# /bin/echo, all of which we build below to limit library dependencies
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# to just those things in glibc and language support libraries which
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# we also copy into the into the rootfs. To determine what language
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# support libraries we need we build a "test" program in either C or
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# (if available) C++ just so we can copy in any shared objects
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# (which we do not build) that GCC-compiled programs depend on.
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ifeq (,$(CXX))
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LINKS_DSO_PROGRAM = links-dso-program-c
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else
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LINKS_DSO_PROGRAM = links-dso-program
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endif
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$(tests-container) $(addsuffix /tests,$(subdirs)) : \
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$(objpfx)testroot.pristine/install.stamp
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$(objpfx)testroot.pristine/install.stamp :
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test -d $(objpfx)testroot.pristine || \
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mkdir $(objpfx)testroot.pristine
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# We need a working /bin/sh for some of the tests.
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test -d $(objpfx)testroot.pristine/bin || \
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mkdir $(objpfx)testroot.pristine/bin
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cp $(objpfx)support/shell-container $(objpfx)testroot.pristine/bin/sh
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cp $(objpfx)support/echo-container $(objpfx)testroot.pristine/bin/echo
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cp $(objpfx)support/true-container $(objpfx)testroot.pristine/bin/true
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ifeq ($(run-built-tests),yes)
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# Copy these DSOs first so we can overwrite them with our own.
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for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1 \
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$(objpfx)elf/$(rtld-installed-name) \
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$(objpfx)testroot.pristine/bin/sh \
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| grep / | sed 's/^[^/]*//' | sed 's/ .*//'` ;\
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do \
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test -d `dirname $(objpfx)testroot.pristine$$dso` || \
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mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
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$(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
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done
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for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1 \
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$(objpfx)elf/$(rtld-installed-name) \
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$(objpfx)support/$(LINKS_DSO_PROGRAM) \
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||
| grep / | sed 's/^[^/]*//' | sed 's/ .*//'` ;\
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do \
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test -d `dirname $(objpfx)testroot.pristine$$dso` || \
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mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
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$(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
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done
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endif
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$(MAKE) install DESTDIR=$(objpfx)testroot.pristine
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touch $(objpfx)testroot.pristine/install.stamp
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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
|
||
# 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
|
||
TAGS:
|
||
scripts/list-sources.sh | sed -n -e '/Makefile/p' \
|
||
$(foreach S,[chsSyl] cxx sh bash pl,\
|
||
$(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
|
||
| $(ETAGS) -o $@ -
|
||
|
||
# Make the distribution tarfile.
|
||
.PHONY: dist dist-prepare
|
||
|
||
generated := $(generated) stubs.h
|
||
|
||
files-for-dist := README INSTALL configure ChangeLog NEWS
|
||
|
||
# Regenerate stuff, then error if these things are not committed yet.
|
||
dist-prepare: $(files-for-dist)
|
||
conf=`find sysdeps -name configure`; \
|
||
$(MAKE) $$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)
|