]> git.ipfire.org Git - thirdparty/glibc.git/blobdiff - Makefile
time/tst-strftime2.c: Make the file easier to maintain
[thirdparty/glibc.git] / Makefile
index a65257be82b0592632a645fbcc8cf932821ba5e4..dc5de7aa6b4c2652d4d23b6425ae5d73df01c4da 100644 (file)
--- a/Makefile
+++ b/Makefile
-# This boilerplate is necessary just because any add-on directory
-# gets added as a normal subdirectory for the glibc build process.
+# Copyright (C) 1991-2019 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
 
-subdir = ports
+# 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.
 
-include ../Rules
+# 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.
 
-.PHONY: dist dist-ports
-dist: dist-ports
+# 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/>.
 
-# Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
-dist-version = $(version)
-# Also try 'dist-tag=some="-r TAG"' (or -D DATE) to get some tag rather
-# than the release tag for X.Y.Z.
-dist-tag = -r glibc-$(subst .,_,$(dist-version))
+#
+#      Master Makefile for the GNU C library
+#
+ifneq (,)
+This makefile requires GNU Make.
+endif
 
-distname = glibc-ports-$(dist-version)
+include Makeconfig
 
-do-export = cvs $(CVSOPTS) -Q export -d $(basename $@) $(dist-tag)
 
-dist-ports: $(foreach Z,.bz2 .gz,$(distname).tar$Z)
-       md5sum $^
-$(distname).tar:
-       @rm -fr $(basename $@)
-       $(do-export) ports
-       tar cf $@ $(basename $@)
-       rm -fr $(basename $@)
-
-.PRECIOUS: %.gz %.bz2 # Don't delete output as intermediate files.
-dist-port-%: $(foreach Z,.bz2 .gz,glibc-port-%-$(dist-version).tar$Z)
+# This is the default target; it makes everything except the tests.
+.PHONY: all
+all: lib others
+\f
+ifneq ($(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_update-all-abi                                \
+                  subdir_echo-headers                                  \
+                  subdir_install                                       \
+                  subdir_objs subdir_stubs subdir_testclean            \
+                  $(addprefix install-, no-libc.a bin lib data headers others)
+\f
+headers := limits.h values.h features.h gnu-versions.h \
+          bits/xopen_lim.h gnu/libc-version.h stdc-predef.h \
+          bits/libc-header-start.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)
+
+# Used to build testrun.sh.
+define testrun-script
+#!/bin/bash
+builddir=`dirname "$$0"`
+GCONV_PATH="$${builddir}/iconvdata"
+
+usage () {
+  echo "usage: $$0 [--tool=strace] PROGRAM [ARGUMENTS...]" 2>&1
+  echo "       $$0 --tool=valgrind PROGRAM [ARGUMENTS...]" 2>&1
+  exit 1
+}
+
+toolname=default
+while test $$# -gt 0 ; do
+  case "$$1" in
+    --tool=*)
+      toolname="$${1:7}"
+      shift
+      ;;
+    --*)
+      usage
+      ;;
+    *)
+      break
+      ;;
+  esac
+done
+
+if test $$# -eq 0 ; then
+  usage
+fi
+
+case "$$toolname" in
+  default)
+    exec $(subst $(common-objdir),"$${builddir}", $(test-program-prefix)) \
+      $${1+"$$@"}
+    ;;
+  strace)
+    exec strace $(patsubst %, -E%, $(run-program-env)) \
+      $(test-via-rtld-prefix) $${1+"$$@"}
+    ;;
+  valgrind)
+    exec env $(run-program-env) valgrind $(test-via-rtld-prefix) $${1+"$$@"}
+    ;;
+  *)
+    usage
+    ;;
+esac
+endef
+
+# 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
+       $(file >$@T,$(testrun-script))
+       chmod a+x $@T
+       mv -f $@T $@
+postclean-generated += testrun.sh
+
+others: $(common-objpfx)testrun.sh
+\f
+# 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
+\f
+# This makes the Info or DVI file of the documentation from the Texinfo source.
+.PHONY: info dvi pdf html
+info dvi pdf html:
+       $(MAKE) $(PARALLELMFLAGS) -C manual $@
+\f
+# This makes all the subdirectory targets.
+
+# For each target, make it depend on DIR/target for each subdirectory DIR.
+$(+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)
+\f
+# 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
+
+ifneq (,$(CXX))
+vpath c++-types.data $(+sysdep_dirs)
+
+tests-special += $(objpfx)c++-types-check.out
+$(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
+       scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu11 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
+       $(evaluate-test)
+endif
+
+tests-special += $(objpfx)check-local-headers.out
+$(objpfx)check-local-headers.out: scripts/check-local-headers.sh
+       AWK='$(AWK)' scripts/check-local-headers.sh \
+         "$(includedir)" "$(objpfx)" < /dev/null > $@; \
+       $(evaluate-test)
+
+ifneq "$(headers)" ""
+# Special test of all the installed headers in this directory.
+tests-special += $(objpfx)check-installed-headers-c.out
+libof-check-installed-headers-c := testsuite
+$(objpfx)check-installed-headers-c.out: \
+    scripts/check-installed-headers.sh $(headers)
+       $(SHELL) $(..)scripts/check-installed-headers.sh c \
+         "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
+         $(headers) > $@; \
+       $(evaluate-test)
+
+ifneq "$(CXX)" ""
+tests-special += $(objpfx)check-installed-headers-cxx.out
+libof-check-installed-headers-cxx := testsuite
+$(objpfx)check-installed-headers-cxx.out: \
+    scripts/check-installed-headers.sh $(headers)
+       $(SHELL) $(..)scripts/check-installed-headers.sh c++ \
+         "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
+         $(headers) > $@; \
+       $(evaluate-test)
+endif # $(CXX)
+
+tests-special += $(objpfx)check-wrapper-headers.out
+$(objpfx)check-wrapper-headers.out: scripts/check-wrapper-headers.py $(headers)
+       $(PYTHON) $< --root=. --subdir=. $(headers) \
+         --generated $(common-generated) > $@; $(evaluate-test)
+endif # $(headers)
+
+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)$1
+endef
+
+# The intention here is to do ONE install of our build into the
+# testroot.pristine/ directory, then rsync (internal to
+# support/test-container) that to testroot.root/ at the start of each
+# test.  That way we can promise each test a "clean" install, without
+# having to do the install for each test.
+#
+# In addition, we have to copy some files (which we build) into this
+# root in addition to what glibc installs.  For example, many tests
+# require additional programs including /bin/sh, /bin/true, and
+# /bin/echo, all of which we build below to limit library dependencies
+# to just those things in glibc and language support libraries which
+# we also copy into the into the rootfs.  To determine what language
+# support libraries we need we build a "test" program in either C or
+# (if available) C++ just so we can copy in any shared objects
+# (which we do not build) that GCC-compiled programs depend on.
+
+
+ifeq (,$(CXX))
+LINKS_DSO_PROGRAM = links-dso-program-c
+else
+LINKS_DSO_PROGRAM = links-dso-program
+endif
+
+$(tests-container) $(addsuffix /tests,$(subdirs)) : \
+               $(objpfx)testroot.pristine/install.stamp
+$(objpfx)testroot.pristine/install.stamp :
+       test -d $(objpfx)testroot.pristine || \
+         mkdir $(objpfx)testroot.pristine
+       # We need a working /bin/sh for some of the tests.
+       test -d $(objpfx)testroot.pristine/bin || \
+         mkdir $(objpfx)testroot.pristine/bin
+       cp $(objpfx)support/shell-container $(objpfx)testroot.pristine/bin/sh
+       cp $(objpfx)support/echo-container $(objpfx)testroot.pristine/bin/echo
+       cp $(objpfx)support/true-container $(objpfx)testroot.pristine/bin/true
+ifeq ($(run-built-tests),yes)
+       # Copy these DSOs first so we can overwrite them with our own.
+       for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1  \
+               $(objpfx)elf/$(rtld-installed-name) \
+               $(objpfx)testroot.pristine/bin/sh \
+               | grep / | sed 's/^[^/]*//' | sed 's/ .*//'` ;\
+         do \
+           test -d `dirname $(objpfx)testroot.pristine$$dso` || \
+             mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
+           $(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
+         done
+       for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1  \
+               $(objpfx)elf/$(rtld-installed-name) \
+               $(objpfx)support/$(LINKS_DSO_PROGRAM) \
+               | grep / | sed 's/^[^/]*//' | sed 's/ .*//'` ;\
+         do \
+           test -d `dirname $(objpfx)testroot.pristine$$dso` || \
+             mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
+           $(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
+         done
+endif
+       $(MAKE) install DESTDIR=$(objpfx)testroot.pristine
+       touch $(objpfx)testroot.pristine/install.stamp
+
+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))
+\f
+# 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\(.in\)*$$/p')) \
+       | $(ETAGS) -o $@ -
+\f
+# Make the distribution tarfile.
+.PHONY: dist dist-prepare
+
+generated := $(generated) stubs.h
+
+files-for-dist := README INSTALL configure ChangeLog NEWS
+
+# Regenerate stuff, then error if these things are not committed yet.
+dist-prepare: $(files-for-dist)
+       conf=`find sysdeps -name configure`; \
+       $(MAKE) $$conf && \
+       git diff --stat HEAD -- $^ $$conf \
+       | $(AWK) '{ print; rc=1 } END { exit rc }'
+
+%.tar: FORCE
+       git archive --prefix=$*/ $* > $@.new
+       mv -f $@.new $@
+
+# Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
+
+ifneq (,$(strip $(dist-version)))
+dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
        md5sum $^
-glibc-port-%-$(dist-version).tar: configure ChangeLog
-       @rm -fr $(basename $@)
-       $(do-export) -l ports
-       rm -f $(basename $@)/ChangeLog.[a-z]*
-       $(do-export) ports/ChangeLog.$* \
-                    ports/sysdeps/$* ports/sysdeps/unix/sysv/linux/$*
-       mv $(basename $@)/ports/* $(basename $@)/
-       rmdir $(basename $@)/ports
-       tar cf $@ $(basename $@)
-       rm -fr $(basename $@)
+else
+dist: dist-prepare
+       @if v=`git describe`; then \
+         echo Distribution version $$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)