-# Copyright (C) 1991-2010, 2011 Free Software Foundation, Inc.
+# Copyright (C) 1991-2012 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
-# License along with the GNU C Library; if not, write to the Free
-# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-# 02111-1307 USA.
+# License along with the GNU C Library; if not, see
+# <http://www.gnu.org/licenses/>.
#
# Common rules for making the GNU C library. This file is included
/*) ;; \
*) dir="\$$(..)$$dir" ;; \
esac; \
- asm='.S .s'; \
+ asm='.S'; \
$(check-inhibit-asm) \
for o in $(all-object-suffixes); do \
set $(subst :, ,$(sysd-rules-patterns)); \
include $(o-iterator)
define o-iterator-doit
-$(objpfx)%$o: %.s $(before-compile); $$(compile-command.s)
-endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-
-define o-iterator-doit
$(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
endef
object-suffixes-left := $(all-object-suffixes)
include $(o-iterator)
define o-iterator-doit
-$(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s)
-endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-
-define o-iterator-doit
$(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
endef
object-suffixes-left := $(all-object-suffixes)
# Generate .dT files as we compile.
compile-mkdep-flags = -MD -MP -MF $@.dt -MT $@
compile-command.S = $(compile.S) $(OUTPUT_OPTION) $(compile-mkdep-flags)
-compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION) $(compile-mkdep-flags)
compile-command.c = $(compile.c) $(OUTPUT_OPTION) $(compile-mkdep-flags)
compile-command.cc = $(compile.cc) $(OUTPUT_OPTION) $(compile-mkdep-flags)
+# Like compile-mkdep-flags, but for use with $(BUILD_CC). We don't want to
+# track system includes here, they may spuriously trigger an install rule,
+# and would cause the check-local-headers test to fail.
+native-compile-mkdep-flags = -MMD -MP -MF $@.dt -MT $@
+
# GCC can grok options after the file name, and it looks nicer that way.
compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
compile.cc = $(CXX) $< -c $(CXXFLAGS) $(CPPFLAGS)
compile.S = $(CC) $< -c $(CPPFLAGS) $(S-CPPFLAGS) \
$(ASFLAGS) $(ASFLAGS-$(suffix $@))
+COMPILE.c = $(CC) -c $(CFLAGS) $(CPPFLAGS)
COMPILE.S = $(CC) -c $(CPPFLAGS) $(S-CPPFLAGS) \
$(ASFLAGS) $(ASFLAGS-$(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 $@
+# This is the end of the pipeline for compiling generated C code.
+compile-stdin.c = $(COMPILE.c) -o $@ -x c - $(compile-mkdep-flags)
+
# We need the $(CFLAGS) to be in there to have the right predefines during
# the dependency run for C sources. But having it for assembly sources can
# get the wrong predefines.
\f
# Modify the list of routines we build for different targets
-ifeq (yesyes,$(build-shared)$(elf))
+ifeq (yes,$(build-shared))
ifndef libc.so-version
# Undefine this because it can't work when we libc.so is unversioned.
static-only-routines =
# $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
# on other shared objects.
lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(+interp)
-ifneq (,$(findstring aix,$(config-os)))
- (echo '#!'; \
- dump -g $< | sed '1,6d' | cut -f2 | sort | uniq) > $(<:a=exp)
-endif
$(build-shlib)
-ifeq ($(elf),yes)
define build-shlib-helper
$(LINK.o) -shared $(static-libgcc) -Wl,-O1 $(sysdep-LDFLAGS) \
$(if $($(@F)-no-z-defs)$(no-z-defs),,-Wl,-z,defs) $(config-LDFLAGS) \
$(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
endef
-else
-ifneq (,$(findstring aix,$(config-os)))
-define build-shlib-helper
-$(LINK.o) -Wl,-G,-bM:SRE,-bnoentry,-bE:$(<:a=exp) \
- $(sysdep-LDFLAGS) $(config-LDFLAGS) $(extra-B-$(@F:lib%.so=%).so) \
- $(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
- $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
- -L$(subst :, -L,$(rpath-link))
-endef
-else
-endif
-endif
-ifeq (yes,$(elf))
ifeq (yes,$(use-default-link))
# If the linker is good enough, we can let it use its default linker script.
shlib-lds =
$(build-shlib-helper) -o $@ $(shlib-lds-flags) \
$(csu-objpfx)abi-note.o $(build-shlib-objlist)
endef
-else
-ifneq (,$(findstring aix,$(config-os)))
-define build-shlib
-$(build-shlib-helper) \
- -o $@ \
- $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
- $(no-whole-archive) $(LDLIBS-$(@F:lib%.so=%).so)
-endef
-define build-shlib
-$(build-shlib-helper) \
- $(build-shlib-objlist)
-endef
-endif
-endif
-ifneq (,$(findstring aix,$(config-os)))
-define build-module-helper
-$(LINK.o) -Wl,-G -Wl,-bM:SRE -Wl,-bnoentry -Wl,-bexpall \
- $(sysdep-LDFLAGS) $(config-LDFLAGS) \
- $(load-map-file) \
- $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
- -L$(subst :, -L,$(rpath-link)) -Wl,-L=$(rpath-link)
-endef
-else
define build-module-helper
$(LINK.o) -shared $(static-libgcc) $(sysdep-LDFLAGS) $(config-LDFLAGS) \
$(if $($(@F)-no-z-defs)$(no-z-defs),,-Wl,-z,defs) \
$(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
endef
-endif
# This macro is similar to build-shlib but it does not define a soname
# and it does not depend on the destination name to start with `lib'.
-ifeq (yes,$(elf))
# binutils only position loadable notes into the first page for binaries,
# not for shared objects
define build-module
$(csu-objpfx)abi-note.o \
-Wl,--as-needed $(build-module-objlist) -Wl,--no-as-needed
endef
-else
-ifneq (,$(findstring aix,$(config-os)))
-define build-module
-$(build-module-helper) \
- -o $@ \
- $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
- $(no-whole-archive) $(LDLIBS-$(@F:%.so=%).so)
-endef
-else
-define build-module
-define build-module
-$(build-module-helper) \
- -o $@ \
- $(build-module-objlist)
-endef
-endif
-endif
build-module-helper-objlist = \
$(patsubst %_pic.a,$(whole-archive) %_pic.a $(no-whole-archive),\
$(filter-out %.lds $(map-file) $(+preinit) $(+postinit),$^))
-whole-archive := -Wl,--whole-archive
build-module-objlist = $(build-module-helper-objlist) $(LDLIBS-$(@F:%.so=%).so)
build-shlib-objlist = $(build-module-helper-objlist) \
# contains some of libc_pic.a already, which will prevent the COMMONs
# from being allocated in libc.so, which introduces evil dependencies
# between libc.so and ld.so, which can make it impossible to upgrade.
-ifeq ($(elf),yes)
$(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
$(LINK.o) -nostdlib -nostartfiles -r -o $@ \
- $(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^ -o $@
+ $(LDFLAGS-c_pic.os) -Wl,-d $(whole-archive) $^ -o $@
ifeq (,$(strip $(shlib-lds-flags)))
# Generate a list of -R options to excise .gnu.glibc-stub.* sections.
common-generated += libc.so$(libc.so-version)
endif
endif
-else
-ifneq (,$(findstring aix,$(config-os)))
-$(common-objpfx)libc.so: $(common-objpfx)libc_pic.a
- @rm -f $@
- (echo '#!'; \
- dump -g $^ | sed '1,6d' | cut -f2 | sort | uniq) > $(^:a=exp)
- sed '/__mulh/d;/__mull/d;/__divss/d;/__divus/d;/__quoss/d;/__quous/d' \
- /lib/syscalls.exp > $(common-objpfx)syscalls.exp
- $(LINK.o) -G -bM:SRE -bnoentry -bE:$(^:a=exp) \
- -bE:$(common-objpfx)syscalls.exp \
- -bI:$(common-objpfx)syscalls.exp \
- -L$(common-objpfx) -o $@ $^
-# AIX runtime ld wants libc.so to be libc.a(shr.o) hardwired
- cp $@ $(common-objpfx)shr.o
- $(AR) $(ARFLAGS) $(common-objpfx)libc.a $(common-objpfx)shr.o
-endif
-endif
\f
# Figure out the source filenames in this directory.
\f
+depfiles := $(sources:.c=.d) \
$(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
+ $(patsubst %.oS,%.d,$(filter %.oS,$(extra-objs))) \
$(patsubst %.o,%.d,$(filter %.o,$(extra-test-objs:.os=.o))) \
$(addsuffix .d,$(tests) $(xtests) $(test-srcs))
ifeq ($(build-programs),yes)
# $(inst_libdir)/libfoo.so -- for linking, symlink or ld script
# $(inst_slibdir)/libfoo.so.NN -- for loading by SONAME, symlink
# $(inst_slibdir)/libfoo-X.Y.Z.so -- the real shared object file
-V := $(firstword $($(subdir)-version) $(version))
+lib-version := $(firstword $($(subdir)-version) $(version))
install-lib-nosubdir: $(install-lib.so-unversioned:%=$(inst_slibdir)/%) \
$(foreach L,$(install-lib.so-versioned),\
$(inst_libdir)/$L \
- $(inst_slibdir)/$(L:.so=)-$V.so \
+ $(inst_slibdir)/$(L:.so=)-$(lib-version).so \
$(inst_slibdir)/$L$($L-version))
# Install all the unversioned shared libraries.
# headers in the sysdeps tree.
$(inst_includedir)/%.h: $(objpfx)%.h $(+force)
$(do-install)
+$(inst_includedir)/%.h: $(common-objpfx)%.h $(+force)
+ $(do-install)
$(inst_includedir)/%.h: %.h $(+force)
$(do-install)
$(inst_includedir)/%.h: $(..)include/%.h $(+force)
endif
install: install-no-libc.a-nosubdir
\f
-# Command to compile $< in $(objdir) using the native libraries.
+# Command to compile $< 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)
+ $< $(OUTPUT_OPTION) $(BUILD_LDFLAGS)
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
+ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) $(BUILD_CPPFLAGS) -D_GNU_SOURCE \
+ -DIS_IN_build -include $(common-objpfx)config.h
# Support the GNU standard name for this target.
.PHONY: check
mv -f $@T $@
%.dynsym: %.so
- $(OBJDUMP) --dynamic-syms $< > $@T
+ LC_ALL=C $(OBJDUMP) --dynamic-syms $< > $@T
mv -f $@T $@
-check-abi-%: $(..)scripts/extract-abilist.awk $(common-objpfx)config.make \
- $(..)abilist/%.abilist $(objpfx)%.symlist
+vpath %.abilist $(+sysdep_dirs)
+
+# The .PRECIOUS rule prevents the files built by an implicit rule whose
+# target pattern is %.symlist from being considered "intermediate files"
+# and automatically removed. We only want these files to be removed by
+# 'make clean', which is handled by the 'generated' variable.
+.PRECIOUS: %.symlist
+generated += $(extra-libs:=.symlist)
+
+check-abi-%: $(common-objpfx)config.make %.abilist $(objpfx)%.symlist
$(check-abi)
-check-abi-%: $(..)scripts/extract-abilist.awk $(common-objpfx)config.make \
- $(..)abilist/%.abilist $(common-objpfx)%.symlist
+check-abi-%: $(common-objpfx)config.make %.abilist $(common-objpfx)%.symlist
$(check-abi)
define check-abi
- LC_ALL=C \
- $(AWK) -f $< -v 'config=$(check-abi-config)' \
- $(patsubst %,-v 'lastversion=%',$($*-abi-frozen)) \
- $(filter %.abilist,$^) \
- | { diff -p -U 0 - $(filter %.symlist,$^) $(check-abi-warn) ; }
+ diff -p -U 0 $(filter %.abilist,$^) $(filter %.symlist,$^)
endef
-ifeq ($(enable-check-abi),warn)
-check-abi-warn = || echo '*** WARNING: $*.so failed ABI check'
-endif
-
-ifeq ($(firstword $(sysd-sorted-done) f)$(firstword $(generating) f),tf)
--include $(common-objpfx)tls.make
-config-tls := tls
-ifeq ($(use-thread),yes)
-config-tls := thread
-endif
-check-abi-config := \
- $(config-machine)-$(config-vendor)-$(config-os)/$(config-tls)
-endif
-update-abi-%: $(..)scripts/merge-abilist.awk $(..)abilist/%.abilist \
- $(objpfx)%.symlist
+update-abi-%: $(objpfx)%.symlist %.abilist
$(update-abi)
-update-abi-%: $(..)scripts/merge-abilist.awk $(..)abilist/%.abilist \
- $(common-objpfx)%.symlist
+update-abi-%: $(common-objpfx)%.symlist %.abilist
$(update-abi)
-ifndef update-abi-config
-define update-abi
- @echo 'Run $(MAKE) $@ update-abi-config=REGEXP'; exit 2
-endef
-else
define update-abi
-LC_ALL=C $(AWK) -v config='$(update-abi-config)' -f $^ \
- > $(..)abilist/$*.abilist.new
-@if cmp -s $(..)abilist/$*.abilist.new $(..)abilist/$*.abilist 2> /dev/null; \
- then rm -f $(..)abilist/$*.abilist.new; \
- echo '+++ $(..)abilist/$*.abilist is unchanged'; \
- else mv -f $(..)abilist/$*.abilist.new $(..)abilist/$*.abilist; \
- echo '*** Now check $*.abilist changes for correctness ***'; \
+@if cmp -s $^ 2> /dev/null; \
+ then \
+ echo '+++ $(filter %.abilist,$^) is unchanged'; \
+ else cp -f $^; \
+ echo '*** Now check $(filter %.abilist,$^) changes for correctness ***'; \
fi
endef
-endif
.PHONY: update-abi check-abi
update-abi: $(patsubst %.so,update-abi-%,$(install-lib.so-versioned))
endif
ifeq ($(build-shared),yes)
-ifneq ($(enable-check-abi),no)
ifdef subdir
tests: check-abi
endif
endif
-endif
endif
echo '#define _LIBC 1'; \
echo '#include "$(..)misc/sys/uio.h"'; } | \
$(CC) -E -dM -MD -MP -MF $(@:st=dT) -MT '$(@:st=h) $(@:st=d)' \
- $(+includes) -xc - -o $(@:st=hT)
+ $(CPPUNDEFS) $(+includes) -xc - -o $(@:st=hT)
sed $(sed-remove-objpfx) $(sed-remove-dotdot) \
$(@:st=dT) > $(@:st=dt)
mv -f $(@:st=dt) $(@:st=d)
-rm -f $(objpfx)*.d $(objpfx)*.dt
-rm -fr $(addprefix $(objpfx),$(generated-dirs))
-rm -f $(addprefix $(common-objpfx),$(common-generated))
+ -rm -f $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
\f
# 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.
+# for each function which is a stub.
ifdef objpfx
.PHONY: stubs # The parent Makefile calls this target.
# 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