| # Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 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 Library General Public License as |
| # published by the Free Software Foundation; either version 2 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 |
| # Library General Public License for more details. |
| |
| # You should have received a copy of the GNU Library General Public |
| # License along with the GNU C Library; see the file COPYING.LIB. If not, |
| # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| # Boston, MA 02111-1307, USA. |
| |
| # |
| # Common rules for making the GNU C library. This file is included |
| # by the top-level Makefile and by all subdirectory makefiles |
| # (through Rules). |
| # |
| ifneq (,) |
| This makefile requires GNU Make. |
| endif |
| |
| REQUIRED_MAKE_VERSION = 3.74 |
| REAL_MAKE_VERSION = $(firstword $(MAKE_VERSION)) |
| |
| ifneq ($(REQUIRED_MAKE_VERSION), \ |
| $(firstword $(sort $(REAL_MAKE_VERSION) $(REQUIRED_MAKE_VERSION)))) |
| Wrong GNU Make version. See above for the version needed. |
| endif |
| |
| |
| ifdef subdir |
| .. := ../ |
| endif # subdir |
| |
| # If `sources' was defined by the parent makefile, undefine it so |
| # we will later get it from wildcard search in this directory. |
| ifneq "$(findstring env,$(origin sources))" "" |
| sources := |
| endif |
| |
| oPATH := $(PATH) |
| PATH := this definition should take precedence over $(oPATH) |
| ifeq ($(PATH),$(oPATH)) |
| You must not use the -e flag when building the GNU C library. |
| else |
| PATH := $(oPATH) |
| endif |
| |
| ifndef +included-Makeconfig |
| include $(..)Makeconfig |
| endif |
| |
| # `configure' writes a definition of `config-sysdirs' in `config.make'. |
| sysdirs = $(strip $(full-config-sysdirs)) |
| |
| +sysdir_pfx = $(common-objpfx) |
| |
| export sysdirs := $(sysdirs) |
| |
| +sysdep_dirs := $(full-config-sysdirs) |
| ifdef objdir |
| +sysdep_dirs := $(objdir) $(+sysdep_dirs) |
| endif |
| |
| # Add -I switches to get the right sysdep directories. |
| # `+includes' in Makeconfig references $(+sysdep-includes). |
| +sysdep-includes := $(addprefix -I,$(+sysdep_dirs)) |
| |
| # This variable is used in ``include $(o-iterator)'' after defining |
| # $(o-iterator-doit) to produce some desired rule using $o for the object |
| # suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy |
| # is produced for each object suffix in use. |
| o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left)) |
| |
| # Include any system-specific makefiles. |
| |
| # This is here so things in sysdep Makefiles can easily depend on foo.h as |
| # appropriate and not worry about where foo.h comes from, which may be |
| # system dependent and not known by that Makefile. |
| vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \ |
| $(+sysdep_dirs) $(..))) |
| |
| # The same is true for RPC source files. |
| vpath %.x $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \ |
| $(+sysdep_dirs) $(..))) |
| |
| # Some sysdep makefiles use this to distinguish being included here from |
| # being included individually by a subdir makefile (hurd/Makefile needs this). |
| in-Makerules := yes |
| |
| -include $(+sysdir_pfx)sysd-Makefile |
| ifndef avoid-generated |
| ifneq ($(sysd-Makefile-sysdirs),$(config-sysdirs)) |
| sysd-Makefile-force = FORCE |
| FORCE: |
| endif |
| $(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \ |
| $(sysd-Makefile-force) |
| -@rm -f $@T |
| (echo 'sysd-Makefile-sysdirs := $(config-sysdirs)'; \ |
| for file in $(config-sysdirs:=/Makefile); do \ |
| if [ -f $(..)$$file ]; then \ |
| echo include "\$$(..)$$file"; \ |
| else true; fi; \ |
| done; \ |
| echo 'sysd-Makefile-done=t') > $@T |
| mv -f $@T $@ |
| endif |
| |
| ifndef sysd-Makefile-done |
| # Don't do deps until this exists, because it might change the sources list. |
| no_deps=t |
| endif |
| |
| |
| # Reorder before-compile so that mach things come first, and hurd things |
| # second, before all else. The mach and hurd subdirectories have many |
| # generated header files which the much of rest of the library depends on, |
| # so it is best to build them first (and mach before hurd, at that). |
| before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\ |
| $(before-compile)) \ |
| $(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\ |
| $(before-compile)) |
| |
| # Remove existing files from `before-compile'. Things are added there when |
| # they must exist for dependency generation to work right, but once they |
| # exist there is no further need for every single file to depend on them, |
| # and those gratuitous dependencies result in many gratuitous |
| # recompilations. |
| before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile)) |
| |
| # Don't let any before-compile file be an intermediate and get removed. |
| ifdef before-compile |
| $(before-compile): |
| endif |
| |
| # Generate an ordered list of implicit rules which find the source files in |
| # each sysdep directory. The old method was to use vpath to search all the |
| # sysdep directories. However, that had the problem that a .S file in a |
| # later directory would be chosen over a .c file in an earlier directory, |
| # which does not preserve the desired sysdeps ordering behavior. |
| |
| # When making the list of .d files to include, we can't know which ones |
| # have source in .s files, and thus do not in fact need a .d file. |
| # So we must define rules to make .d files for .s files. |
| define make-dummy-dep |
| $(addprefix ln $(common-objpfx)dummy.d ,$(filter-out $(wildcard $@),$@)) |
| endef |
| $(common-objpfx)dummy.d: |
| echo '# .s files cannot contain includes, so they need no deps.' > $@ |
| |
| # It matters that this set of rules, for compiling from sources in |
| # the current directory (the $srcdir/$subdir) come before the |
| # generated sysdep rules in included from sysd-rules below. When |
| # compiling in the source tree, generated sources go into the current |
| # directory, and those should be chosen before any sources in sysdeps. |
| define o-iterator-doit |
| $(objpfx)%$o: %.S $(before-compile); $$(compile-command.S) |
| endef |
| object-suffixes-left := $(all-object-suffixes) |
| include $(o-iterator) |
| $(objpfx)%.d: %.S $(before-compile); $(+make-deps) |
| |
| define o-iterator-doit |
| $(objpfx)%$o: %.s $(before-compile); $$(compile-command.s) |
| endef |
| object-suffixes-left := $(all-object-suffixes) |
| include $(o-iterator) |
| $(objpfx)%.d: %.s $(common-objpfx)dummy.d; $(make-dummy-dep) |
| |
| define o-iterator-doit |
| $(objpfx)%$o: %.c $(before-compile); $$(compile-command.c) |
| endef |
| object-suffixes-left := $(all-object-suffixes) |
| include $(o-iterator) |
| $(objpfx)%.d: %.c $(before-compile); $(+make-deps) |
| |
| # Omit the objpfx rules when building in the source tree, because |
| # objpfx is empty and so these rules just override the ones above. |
| ifdef objpfx |
| # Define first rules to find the source files in $(objpfx). |
| # Generated source files will end up there. |
| define o-iterator-doit |
| $(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S) |
| endef |
| object-suffixes-left := $(all-object-suffixes) |
| include $(o-iterator) |
| $(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps) |
| |
| define o-iterator-doit |
| $(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s) |
| endef |
| object-suffixes-left := $(all-object-suffixes) |
| include $(o-iterator) |
| $(objpfx)%.d: $(objpfx)%.s $(common-objpfx)dummy.d; $(make-dummy-dep) |
| |
| define o-iterator-doit |
| $(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c) |
| endef |
| object-suffixes-left := $(all-object-suffixes) |
| include $(o-iterator) |
| $(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps) |
| endif |
| |
| # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard |
| # patterns matching sysdep directories whose assembly source files should |
| # be suppressed. |
| ifdef inhibit-sysdep-asm |
| define open-check-inhibit-asm |
| case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *) |
| endef |
| close-check-inhibit-asm = ;; esac ; |
| endif |
| |
| # Don't include sysd-rules until sysd-Makefile is already there and has been |
| # included. It might define inhibit-sysdep-asm, which would affect the |
| # contents of sysd-rules. |
| ifdef sysd-Makefile-done |
| -include $(+sysdir_pfx)sysd-rules |
| ifneq ($(sysd-rules-sysdirs),$(config-sysdirs)) |
| # The value of $(+sysdep_dirs) the sysd-rules was computed for |
| # differs from the one we are using now. So force a rebuild of sysd-rules. |
| sysd-rules-force = FORCE |
| FORCE: |
| endif |
| endif |
| $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \ |
| $(wildcard $(foreach dir,$(sysdirs),\ |
| $(dir)/Makefile))\ |
| $(sysd-rules-force) |
| -@rm -f $@T |
| (echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \ |
| for dir in $(config-sysdirs:%='$$(..)%'); do \ |
| for o in $(all-object-suffixes); do \ |
| $(open-check-inhibit-asm) \ |
| echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \ |
| \$$(compile-command.S)"; \ |
| echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \ |
| \$$(compile-command.s)"; \ |
| $(close-check-inhibit-asm) \ |
| echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \ |
| \$$(compile-command.c)"; \ |
| done; \ |
| $(open-check-inhibit-asm) \ |
| echo "\$$(objpfx)%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \ |
| \$$(make-dummy-dep)"; \ |
| echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \ |
| \$$(+make-deps)"; \ |
| $(close-check-inhibit-asm) \ |
| echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \ |
| \$$(+make-deps)"; \ |
| done; \ |
| echo 'sysd-rules-done = t') > $@T |
| mv -f $@T $@ |
| |
| ifndef sysd-rules-done |
| # Don't do deps until this exists, because it provides rules to make the deps. |
| no_deps=t |
| endif |
| |
| # Generate version maps, but wait until sysdep-subdirs is known |
| ifdef sysd-dirs-done |
| ifeq ($(versioning),yes) |
| -include $(common-objpfx)sysd-versions |
| $(addprefix $(common-objpfx),$(version-maps)): $(common-objpfx)sysd-versions |
| common-generated += $(version-maps) sysd-versions |
| |
| ifndef avoid-generated |
| ifneq ($(sysd-versions-subdirs),$(all-subdirs) $(config-sysdirs)) |
| sysd-versions-force = FORCE |
| FORCE: |
| endif |
| $(common-objpfx)sysd-versions: $(..)Versions.def $(..)scripts/versions.awk \ |
| $(wildcard $(all-subdirs:%=$(..)%/Versions)) \ |
| $(wildcard $(sysdirs:%=%/Versions)) \ |
| $(sysd-versions-force) |
| { echo 'sysd-versions-subdirs = $(all-subdirs) $(config-sysdirs)' ; \ |
| $(AWK) -v buildroot=$(common-objpfx) -v defsfile=$< \ |
| -v move_if_change='$(move-if-change)' \ |
| -f $(filter-out $< $(sysd-versions-force),$^); \ |
| } > $@T |
| mv -f $@T $@ |
| endif # avoid-generated |
| endif # $(versioning) = yes |
| endif # sysd-dirs-done |
| |
| ifndef compile-command.S |
| compile-command.S = $(compile.S) $(OUTPUT_OPTION) |
| endif |
| ifndef compile-command.s |
| compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION) |
| endif |
| ifndef compile-command.c |
| compile-command.c = $(compile.c) $(OUTPUT_OPTION) |
| endif |
| |
| # GCC can grok options after the file name, and it looks nicer that way. |
| compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS) |
| compile.S = \ |
| $(CC) $< -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS) $(ASFLAGS-$(suffix $@)) |
| COMPILE.S = \ |
| $(CC) -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS) $(ASFLAGS-$(suffix $@)) |
| COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS) |
| |
| # We need this for the output to go in the right place. It will default to |
| # empty if make was configured to work with a cc that can't grok -c and -o |
| # together. You can't compile the C library with such a compiler. |
| OUTPUT_OPTION = -o $@ |
| |
| S-CPPFLAGS = $(asm-CPPFLAGS) |
| define +make-deps |
| $(make-target-directory) |
| -@rm -f $@ |
| $(+mkdep) $< $(CFLAGS) $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \ |
| sed \ |
| -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(all-object-suffixes),$(@:.d=$o)) $@,' \ |
| $(sed-remove-objpfx) > $(@:.d=.T) |
| mv -f $(@:.d=.T) $@ |
| endef |
| ifneq (,$(objpfx)) |
| # Continuation lines here are dangerous because they introduce spaces! |
| define sed-remove-objpfx |
| -e 's@ $(subst .,\.,$(subst @,\@,$(common-objpfx)))@ $$(common-objpfx)@g' \ |
| -e 's@^$(subst .,\.,$(subst @,\@,$(common-objpfx)))@$$(common-objpfx)@g' |
| endef |
| endif |
| |
| # Shared library building. |
| |
| ifeq (yes,$(build-shared)) |
| |
| # Reference map file only when versioning is selected and a map file name |
| # is given. |
| ifeq ($(versioning),yes) |
| map-file = $(firstword $($(@F:.so=-map)) \ |
| $(addprefix $(common-objpfx), \ |
| $(filter $(@F:.so=.map),$(version-maps)))) |
| load-map-file = $(map-file:%=-Wl,--version-script=%) |
| endif |
| |
| # Pattern rule to build a shared object from an archive of PIC objects. |
| # This must come after the installation rules so Make doesn't try to |
| # build shared libraries in place from the installed *_pic.a files. |
| # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies |
| # on other shared objects. |
| lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(+interp) |
| $(build-shlib) |
| |
| define build-shlib |
| $(LINK.o) -shared -O -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \ |
| -B$(csu-objpfx) $(load-map-file) \ |
| -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \ |
| $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \ |
| -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \ |
| -Wl,--whole-archive \ |
| $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \ |
| $(no-whole-archive) $(LDLIBS-$(@F:lib%.so=%).so) |
| endef |
| |
| ifndef libc.so-version |
| # Undefine this because it can't work when we libc.so is unversioned. |
| static-only-routines = |
| endif |
| |
| elide-routines.oS += $(filter-out $(static-only-routines),\ |
| $(routines) $(aux) $(sysdep_routines)) |
| elide-routines.os += $(static-only-routines) |
| |
| # If we have versioned code we don't need the old versions in any of the |
| # static libraries. |
| elide-routines.o += $(shared-only-routines) |
| elide-routines.op += $(shared-only-routines) |
| elide-routines.og += $(shared-only-routines) |
| elide-routines.ob += $(shared-only-routines) |
| |
| # Don't try to use -lc when making libc.so itself. |
| # Also omits crti.o and crtn.o, which we do not want |
| # since we define our own `.init' section specially. |
| LDFLAGS-c.so = -nostdlib -nostartfiles |
| # But we still want to link libc.so against $(gnulib). |
| LDLIBS-c.so += $(gnulib) |
| # Give libc.so an entry point and make it directly runnable itself. |
| LDFLAGS-c.so += -e __libc_main |
| # Pre-link the objects of libc_pic.a so that we can locally resolve |
| # COMMON symbols before we link against ld.so. This is because ld.so |
| # contains some of libc_pic.a already, which will prevent the COMMONs |
| # from being allocated in libc.so, which introduces evil dependencies |
| # between libc.so and ld.so, which can make it impossible to upgrade. |
| $(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a |
| $(LINK.o) -nostdlib -nostartfiles -r -o $@ \ |
| -Wl,-d -Wl,--whole-archive $^ |
| # Use our own special initializer and finalizer files for libc.so. |
| $(common-objpfx)libc.so: $(elfobjdir)/soinit.os \ |
| $(common-objpfx)libc_pic.os \ |
| $(elfobjdir)/sofini.os \ |
| $(elfobjdir)/interp.os $(elfobjdir)/ld.so |
| $(build-shlib) |
| ifeq ($(versioning),yes) |
| $(common-objpfx)libc.so: $(common-objpfx)libc.map |
| endif |
| common-generated += libc.so libc_pic.os |
| ifdef libc.so-version |
| $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so |
| $(make-link) |
| common-generated += libc.so$(libc.so-version) |
| endif |
| endif |
| |
| # Figure out the source filenames in this directory. |
| |
| override sources := $(addsuffix .c,$(filter-out $(elided-routines),\ |
| $(routines) $(aux) \ |
| $(sysdep_routines))) |
| sysdep_routines := $(sysdep_routines) |
| |
| headers := $(headers) $(sysdep_headers) |
| |
| # This is the list of all object files, gotten by |
| # replacing every ".c" in `sources' with a ".o". |
| override objects := $(addprefix $(objpfx),$(sources:.c=.o)) |
| |
| |
| # The makefile may define $(extra-libs) with `libfoo libbar' |
| # to build libfoo.a et al from the modules listed in $(libfoo-routines). |
| ifdef extra-libs |
| # extra-lib.mk is included once for each extra lib to define rules |
| # to build it, and to add its objects to the various variables. |
| # During its evaluation, $(lib) is set to the name of the library. |
| extra-libs-left := $(extra-libs) |
| include $(patsubst %,$(..)extra-lib.mk,$(extra-libs)) |
| endif |
| |
| +depfiles := $(sources:.c=.d) \ |
| $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \ |
| $(addsuffix .d,$(tests) $(test-srcs) $(tests-static)) |
| ifeq ($(build-programs),yes) |
| +depfiles += $(addsuffix .d,$(others) $(sysdep-others)) |
| endif |
| +depfiles := $(addprefix $(objpfx),\ |
| $(filter-out $(addsuffix .d,$(omit-deps)),\ |
| $(+depfiles))) |
| |
| ifdef +depfiles |
| ifneq ($(no_deps),t) |
| -include $(+depfiles) |
| endif |
| endif |
| |
| # Maximize efficiency by minimizing the number of rules. |
| .SUFFIXES: # Clear the suffix list. We don't use suffix rules. |
| # Don't define any builtin rules. |
| MAKEFLAGS := $(MAKEFLAGS)r |
| |
| # Generic rule for making directories. |
| %/: |
| # mkdir isn't smart enough to strip a trailing /. |
| mkdir $(@:%/=%) |
| |
| # Make sure that object files are not removed |
| # when they are intermediates between sources and library members. |
| .PRECIOUS: $(addprefix $(objpfx)%,$(all-object-suffixes)) |
| |
| # Make sure that the parent library archive is never removed. |
| .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c)) |
| |
| # Use the verbose option of ar and tar when not running silently. |
| ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s |
| verbose := v |
| else # -s |
| verbose := |
| endif # not -s |
| |
| ARFLAGS := r$(verbose) |
| CREATE_ARFLAGS := cru$(verbose) |
| |
| # This makes all the object files in the parent library archive. |
| |
| .PHONY: lib lib-noranlib |
| lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c)) |
| lib-noranlib: libobjs |
| |
| # For object-suffix $o, the list of objects with that suffix. |
| # Makefiles can define `elide-routines.so = foo' to leave foo.so out. |
| o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\ |
| $(elide-routines$o)),\ |
| $(objects))) |
| others: $(addprefix $(objpfx),$(install-lib)) |
| |
| ifndef objects |
| |
| # Create the stamp$o files to keep the parent makefile happy. |
| subdir_lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o) |
| $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o): |
| $(make-target-directory) |
| rm -f $@; > $@ |
| else |
| |
| # Define explicit rules to update each $(objpfx)stamp.SUFFIX |
| # timestamp file; these rules (one explicit rule is generated for each |
| # object suffix) write a list of objects to update in the stamp file. |
| # The parent will then actually add them all to the archive in the |
| # archive rule, below. |
| define o-iterator-doit |
| $(objpfx)stamp$o: $(o-objects); $$(do-stamp) |
| endef |
| define do-stamp |
| echo '$(patsubst $(objpfx)%,$(addsuffix /,$(subdir))%,$^)' > $@T |
| mv -f $@T $@ |
| endef |
| object-suffixes-left := $(object-suffixes-for-libc) |
| include $(o-iterator) |
| |
| endif |
| |
| # Now define explicit rules to build the library archives; these depend |
| # on the stamp files built above. |
| define o-iterator-doit |
| $(common-objpfx)$(patsubst %,$(libtype$o),c): \ |
| $(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib) |
| endef |
| define do-makelib |
| cd $(common-objdir) && \ |
| $(AR) $(CREATE_ARFLAGS) $(@F) `cat $(patsubst $(common-objpfx)%,%,$^)` |
| $(RANLIB) $@ |
| endef |
| subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%) |
| subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps)) |
| ifndef subdir |
| $(subdirs-stamps): subdir_lib; |
| endif |
| object-suffixes-left = $(object-suffixes-for-libc) |
| include $(o-iterator) |
| |
| |
| # This makes all the object files. |
| .PHONY: objects objs libobjs extra-objs |
| objects objs: libobjs extra-objs |
| libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o) |
| extra-objs: $(addprefix $(objpfx),$(extra-objs)) |
| |
| # Canned sequence for building an extra library archive. |
| define build-extra-lib |
| $(patsubst %/,cd % &&,$(objpfx)) \ |
| $(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \ |
| $(patsubst $(objpfx)%,%,$^) |
| $(RANLIB) $@ |
| endef |
| |
| # Installation. |
| |
| .PHONY: force-install |
| force-install: |
| |
| # $(install-lib) are installed from the object directory into $(libdir); |
| # files in $(install-lib) matching `lib%.a' are ranlib'd after installation |
| # unless they also appear in $(non-lib.a). $(install-data) are installed |
| # as they are into $(datadir). $(headers) are installed as they are in |
| # $(includedir). $(install-bin) and $(install-sbin) are installed from the |
| # object directory into $(bindir) and $(sbindir), respectively. |
| # $(install-others) are absolute path names of files to install; rules to |
| # install them are defined elsewhere. |
| |
| # The simple library name to install libc.a under. |
| # This could be defined by a sysdep Makefile. |
| ifndef libc-name |
| libc-name := c |
| endif |
| |
| define do-install |
| $(make-target-directory) |
| $(INSTALL_DATA) $< $@ |
| endef |
| |
| # Make the target directory if it doesn't exist, using the `mkinstalldirs' |
| # script that does `mkdir -p' even if `mkdir' doesn't support that flag. |
| define make-target-directory |
| $(addprefix $(..)./scripts/mkinstalldirs ,\ |
| $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%))) |
| endef |
| |
| # Any directory (parent or subdir) should install libc.a; this way |
| # "make install" in a subdir is guaranteed to install everything it changes. |
| installed-libcs := $(foreach o,$(filter-out .os,$(object-suffixes-for-libc)),\ |
| $(inst_libdir)/$(patsubst %,$(libtype$o),\ |
| $(libprefix)$(libc-name))) |
| install: $(installed-libcs) |
| $(installed-libcs): $(inst_libdir)/lib$(libprefix)%: lib $(+force) |
| $(make-target-directory) |
| $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@ |
| # Running ranlib after installing makes the __.SYMDEF time stamp up to |
| # date, which avoids messages from some linkers. |
| $(RANLIB) $@ |
| |
| define do-install-program |
| $(make-target-directory) |
| $(INSTALL_PROGRAM) $< $@.new |
| mv -f $@.new $@ |
| endef |
| |
| install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so)) |
| install-lib := $(filter-out %.so %_pic.a,$(install-lib)) |
| |
| ifeq (yes,$(build-shared)) |
| # Find which .so's have versions. |
| versioned := $(strip $(foreach so,$(install-lib.so),\ |
| $(patsubst %,$(so),$($(so)-version)))) |
| |
| install-lib.so-versioned := $(filter $(versioned), $(install-lib.so)) |
| install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so)) |
| |
| install-lib-nosubdir: $(install-lib.so-versioned:%=$(inst_libdir)/%) \ |
| $(install-lib.so-unversioned:%=$(inst_slibdir)/%) |
| |
| # Install all the unversioned shared libraries. |
| $(install-lib.so-unversioned:%=$(inst_slibdir)/%): $(inst_slibdir)/%.so: \ |
| $(objpfx)%.so $(+force) |
| $(do-install-program) |
| |
| ifneq ($(findstring -s,$(LN_S)),) |
| define make-link |
| rm -f $@.new |
| $(SHELL) $(..)scripts/rellns-sh $< $@.new |
| mv -f $@.new $@ |
| endef |
| else |
| # If we have no symbolic links don't bother with rellns-sh. |
| define make-link |
| rm -f $@.new |
| $(LN_S) $< $@.new |
| mv -f $@.new $@ |
| endef |
| endif |
| |
| ifeq (no,$(cross-compiling)) |
| ifeq (yes,$(build-shared)) |
| symbolic-link-prog := $(common-objpfx)elf/sln |
| symbolic-link-list := $(common-objpfx)elf/symlink.list |
| define make-shlib-link |
| echo $(<F) $@ >> $(symbolic-link-list) |
| endef |
| endif |
| endif |
| ifndef make-shlib-link |
| define make-shlib-link |
| rm -f $@ |
| $(LN_S) $(<F) $@ |
| endef |
| endif |
| |
| ifdef libc.so-version |
| # For a library specified to be version N, install three files: |
| # libc.so -> libc.so.N (e.g. libc.so.6) |
| # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so) |
| |
| $(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \ |
| $(+force) |
| $(make-shlib-link) |
| $(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force) |
| $(do-install-program) |
| install: $(inst_slibdir)/libc.so$(libc.so-version) |
| |
| ifndef subdir |
| # What we install as libc.so for programs to link against is in fact a |
| # link script. It contains references for the various libraries we need. |
| # The libc.so object is not complete since some functions are only defined |
| # in libc_nonshared.a. |
| # We need to use absolute paths since otherwise local copies (if they exist) |
| # of the files are taken by the linker. |
| install: $(inst_libdir)/libc.so |
| $(inst_libdir)/libc.so: $(common-objpfx)libc.so$(libc.so-version) \ |
| $(inst_libdir)/$(patsubst %,$(libtype.oS),\ |
| $(libprefix)$(libc-name)) \ |
| $(+force) |
| (echo '/* GNU ld script';\ |
| echo ' Use the shared library, but some functions are only in';\ |
| echo ' the static library, so try that secondarily. */';\ |
| echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \ |
| '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\ |
| ')' \ |
| ) > $@.new |
| mv -f $@.new $@ |
| |
| endif |
| |
| else |
| install: $(inst_slibdir)/libc.so |
| $(inst_slibdir)/libc.so: $(common-objpfx)libc.so $(+force) |
| $(do-install-program) |
| endif |
| |
| ifneq (,$(versioned)) |
| # Produce three sets of rules as above for all the smaller versioned libraries. |
| |
| define o-iterator-doit |
| $(inst_libdir)/$o: $(inst_slibdir)/$o$($o-version) $(+force); $$(make-link) |
| endef |
| object-suffixes-left := $(versioned) |
| include $(o-iterator) |
| |
| # Make symlinks in the build directory, because the versioned names might |
| # be referenced by a DT_NEEDED in another library. |
| define o-iterator-doit |
| $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link) |
| endef |
| object-suffixes-left := $(versioned) |
| include $(o-iterator) |
| |
| generated += $(foreach o,$(versioned),$o$($o-version)) |
| |
| ifeq (,$($(subdir)-version)) |
| define o-iterator-doit |
| $(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \ |
| $(+force); |
| $$(make-shlib-link) |
| endef |
| object-suffixes-left := $(versioned) |
| include $(o-iterator) |
| |
| define o-iterator-doit |
| $(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force); |
| $$(do-install-program) |
| endef |
| object-suffixes-left := $(versioned) |
| include $(o-iterator) |
| else |
| define o-iterator-doit |
| $(inst_slibdir)/$o$($o-version): \ |
| $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force); |
| $$(make-shlib-link) |
| endef |
| object-suffixes-left := $(versioned) |
| include $(o-iterator) |
| |
| define o-iterator-doit |
| $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force); |
| $$(do-install-program) |
| endef |
| object-suffixes-left := $(versioned) |
| include $(o-iterator) |
| endif |
| endif |
| |
| define do-install-so |
| $(do-install-program) |
| $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\ |
| $(filter-out %.so,$@)) |
| endef |
| |
| so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version))) |
| $(foreach v,$(so-versions),\ |
| $(inst_slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so \ |
| $(+force) |
| $(do-install-so) |
| $(foreach v,$(so-versions),\ |
| $(inst_slibdir)/$(libprefix)%$v): $(common-objpfx)%.so $(+force) |
| $(do-install-so) |
| endif |
| |
| ifdef install-bin |
| $(addprefix $(inst_bindir)/,$(install-bin)): \ |
| $(inst_bindir)/%: $(objpfx)% $(+force) |
| $(do-install-program) |
| endif |
| ifdef install-rootsbin |
| $(addprefix $(inst_rootsbindir)/,$(install-rootsbin)): \ |
| $(inst_rootsbindir)/%: $(objpfx)% $(+force) |
| $(do-install-program) |
| endif |
| ifdef install-sbin |
| $(addprefix $(inst_sbindir)/,$(install-sbin)): \ |
| $(inst_sbindir)/%: $(objpfx)% $(+force) |
| $(do-install-program) |
| endif |
| ifdef install-lib |
| install-lib.a := $(filter lib%.a,$(install-lib)) |
| install-lib-non.a := $(filter-out lib%.a,$(install-lib)) |
| ifdef install-lib-non.a |
| $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \ |
| $(inst_libdir)/$(libprefix)%: $(objpfx)% $(+force) |
| $(do-install) |
| endif |
| ifdef install-lib.a |
| $(install-lib.a:lib%.a=$(inst_libdir)/lib$(libprefix)%.a): \ |
| $(inst_libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a $(+force) |
| $(do-install) |
| $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F))) |
| endif |
| endif |
| ifdef install-data |
| $(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force) |
| $(do-install) |
| endif |
| headers := $(strip $(headers)) |
| ifdef headers |
| $(addprefix $(inst_includedir)/,$(headers)): $(inst_includedir)/%: % $(+force) |
| $(do-install) |
| endif # headers |
| |
| .PHONY: install-bin-nosubdir install-rootsbin-nosubdir install-sbin-nosubdir \ |
| install-lib-nosubdir install-data-nosubdir install-headers-nosubdir |
| install-bin-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin)) |
| install-rootsbin-nosubdir: \ |
| $(addprefix $(inst_rootsbindir)/,$(install-rootsbin)) |
| install-sbin-nosubdir: $(addprefix $(inst_sbindir)/,$(install-sbin)) |
| install-lib-nosubdir: $(addprefix $(inst_libdir)/,\ |
| $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \ |
| $(addprefix $(libprefix),$(install-lib-non.a))) |
| install-data-nosubdir: $(addprefix $(inst_datadir)/,$(install-data)) |
| install-headers-nosubdir: $(addprefix $(inst_includedir)/,$(headers)) |
| install-others-nosubdir: $(install-others) |
| |
| # We need all the `-nosubdir' targets so that `install' in the parent |
| # doesn't depend on several things which each iterate over the subdirs. |
| # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a |
| # subroutine. Then in the parent `install-FOO' also causes subdir makes. |
| install-%:: install-%-nosubdir ; |
| |
| .PHONY: install install-no-libc.a-nosubdir |
| ifeq ($(build-programs),yes) |
| install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\ |
| install-bin-nosubdir install-lib-nosubdir \ |
| install-others-nosubdir install-rootsbin-nosubdir \ |
| install-sbin-nosubdir |
| else |
| install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\ |
| install-lib-nosubdir install-others-nosubdir |
| endif |
| install: install-no-libc.a-nosubdir |
| |
| # Command to compile $< in $(objdir) using the native libraries. |
| define native-compile |
| $(make-target-directory) |
| $(patsubst %/,cd % &&,$(objpfx)) \ |
| $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \ |
| $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(@F) |
| endef |
| |
| # Command to compile $< in $(common-objdir) using the native libraries. |
| # We must cd to $(objdir) anyway so that $(..)config.h is valid. |
| define common-objdir-compile |
| $(patsubst %/,cd % &&,$(objpfx)) \ |
| $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \ |
| $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(..)$(@F) |
| endef |
| |
| # We always want to use configuration definitions. |
| # Note that this is only used for commands running in $(objpfx). |
| ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) -include $(..)config.h |
| |
| # Support the GNU standard name for this target. |
| .PHONY: check |
| check: tests |
| |
| .PHONY: TAGS |
| TAGS: $(objpfx)distinfo $(..)MakeTAGS |
| $(MAKE) $(addprefix -f ,$^) $@ |
| |
| $(..)po/%.pot: $(objpfx)distinfo $(..)MakeTAGS FORCE |
| $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@ |
| FORCE: |
| |
| |
| .PHONY: echo-headers |
| echo-headers: |
| @echo $(headers) |
| |
| |
| # Common cleaning targets. |
| |
| .PHONY: common-mostlyclean common-clean mostlyclean clean |
| clean: common-clean |
| mostlyclean: common-mostlyclean |
| |
| # Remove the object files. |
| common-mostlyclean: |
| -rm -f $(addprefix $(objpfx),$(tests) $(test-srcs) $(others) \ |
| $(sysdep-others) $(tests-static) stubs \ |
| $(addsuffix .o,$(tests) $(test-srcs) \ |
| $(tests-static) \ |
| $(others) \ |
| $(sysdep-others)) \ |
| $(addsuffix .out,$(tests) $(test-srcs)) \ |
| $(addsuffix .sout,$(tests-static))) |
| -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \ |
| $(install-lib.so) \ |
| $(install-lib.so:%.so=%_pic.a)) |
| -rm -f core |
| $(rmobjs) |
| define rmobjs |
| $(foreach o,$(object-suffixes-for-libc), |
| -rm -f $(objpfx)stamp$o $(o-objects)) |
| endef |
| |
| # Also remove the dependencies and generated source files. |
| common-clean: common-mostlyclean |
| -rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles) |
| -rm -fr $(addprefix $(objpfx),$(generated-dirs)) |
| -rm -f $(addprefix $(common-objpfx),$(common-generated)) |
| -rm -f $(objpfx)distinfo |
| |
| # Produce a file `stubs' which contains `#define __stub_FUNCTION' |
| # for each function which is a stub. We grovel over all the .d files |
| # looking for references to <stub-tag.h>. Then we grovel over each |
| # referenced source file to see what stub function it defines. |
| |
| ifdef objpfx |
| .PHONY: stubs # The parent Makefile calls this target. |
| stubs: $(objpfx)stubs |
| endif |
| s = $(sysdep_dir)/generic |
| $(objpfx)stubs: $(+depfiles) |
| # Use /dev/null since `...` might expand to empty. |
| (s=`cd $s && /bin/pwd`; \ |
| $(patsubst %/,cd % &&,$(objpfx)) \ |
| sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \ |
| `sed -n -e '\@ $s/[^ ]*\.c@{; s@^.* $s/\([^ ]*\.c\).*$$@'"$$s"'/\1@; h; }' \ |
| -e '/stub-tag\.h/{; g; p; }' \ |
| $(patsubst $(objpfx)%,%,$^) /dev/null` \ |
| /dev/null) > $@T |
| mv -f $@T $@ |
| |
| # Make the distribution tar file. |
| |
| .PHONY: dist |
| dist: $(objpfx)distinfo $(..)Make-dist |
| $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args) |
| |
| # Avoid depending on source files found in sysdeps dirs, |
| # because the references affect implicit rule selection. |
| dist: $(filter-out %.c %.S %.s,$(distribute)) |
| |
| # We used to simply export all these variables, but that frequently made the |
| # environment get too large. Instead, we write all the information into |
| # a generated makefile fragment `distinfo', and then include it with -f in |
| # the sub-make that makes the distribution (above). |
| $(objpfx)distinfo: Makefile $(..)Makerules \ |
| $(wildcard $(foreach dir,$(sysdirs),$(dir)/Makefile)) |
| $(make-target-directory) |
| $(distinfo-vars) |
| mv -f $@.new $@ |
| .PHONY: subdir_distinfo |
| subdir_distinfo: $(objpfx)distinfo |
| |
| define distinfo-vars |
| rm -f $@.new |
| echo > $@.new 'subdir := $(subdir)' |
| $(foreach var,subdir-dirs sources elided-routines sysdep_routines \ |
| headers sysdep_headers distribute dont_distribute generated \ |
| others tests test-srcs extra-libs $(extra-libs:%=%-routines) \ |
| tests-static versioned \ |
| $(addprefix install-,lib lib.so data bin sbin others), |
| echo >> $@.new '$(subdir)-$(var) := $($(var))' |
| echo >> $@.new '$(var) = $$($(subdir)-$(var))') |
| endef |
| |
| ifneq (,$(strip $(gpl2lgpl))) |
| ifneq (,$(wildcard $(..)gpl2lgpl.sed)) |
| # Snarf from the master source and frob the copying notice. |
| $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/% |
| sed -f $^ > $@-tmp |
| # So I don't edit them by mistake. |
| chmod a-w $@-tmp |
| mv -f $@-tmp $@ |
| ifeq ($(with-cvs),yes) |
| test ! -d CVS || cvs $(CVSOPTS) commit -m'Updated from $^' $@ |
| endif |
| endif |
| endif |