-# Copyright (C) 1991-2006,2007,2008,2009,2010 Free Software Foundation, Inc.
+# Copyright (C) 1991-2014 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
$(before-compile))
# Even before that, we need abi-versions.h which is generated right here.
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
ifndef avoid-generated
before-compile := $(common-objpfx)abi-versions.h $(before-compile)
$(common-objpfx)abi-versions.h: $(..)scripts/abi-versions.awk \
$(common-objpfx)abi-versions.h > $@T
mv -f $@T $@
endif # avoid-generated
-endif # $(versioning) = yes
+endif # $(build-shared) = yes
ifndef avoid-generated
before-compile := $(common-objpfx)libc-abis.h $(before-compile)
-$(common-objpfx)libc-abis.h: $(..)scripts/gen-libc-abis \
+$(common-objpfx)libc-abis.h: $(common-objpfx)libc-abis.stamp; @:
+$(common-objpfx)libc-abis.stamp: $(..)scripts/gen-libc-abis \
$(firstword $(wildcard $(sysdirs:=/libc-abis)) \
$(..)libc-abis) \
$(..)Makerules
$(SHELL) $< \
$(base-machine)-$(config-vendor)-$(config-os) \
- < $(word 2,$^) > $@T
- $(move-if-change) $@T $@
+ < $(word 2,$^) > $(@:.stamp=.h)T
+ $(move-if-change) $(@:.stamp=.h)T $(@:.stamp=.h)
+ touch $@
common-generated += $(common-objpfx)libc-abis.h
endif # avoid-generated
# later directory would be chosen over a .c file in an earlier directory,
# which does not preserve the desired sysdeps ordering behavior.
-# 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 check-inhibit-asm
-case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) asm= ;; esac;
-endef
-endif
+# System-dependent makefiles can put in `inhibit-sysdep-asm' regexps
+# matching sysdep directories whose assembly source files should be
+# suppressed.
-include $(common-objpfx)sysd-rules
ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
sysd-rules-force = FORCE
FORCE:
endif
-$(common-objpfx)sysd-rules: $(common-objpfx)config.make $(..)Makerules \
+$(common-objpfx)sysd-rules: $(..)scripts/sysd-rules.awk \
+ $(common-objpfx)config.make $(..)Makerules \
$(sysdep-makefiles) $(sysdep-makeconfigs) \
$(sysd-rules-force)
-@rm -f $@T
- (echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
- for dir in $(config-sysdirs); do \
- case "$$dir" in \
- /*) ;; \
- *) dir="\$$(..)$$dir" ;; \
- esac; \
- asm='.S .s'; \
- $(check-inhibit-asm) \
- for o in $(all-object-suffixes); do \
- set $(subst :, ,$(sysd-rules-patterns)); \
- while [ $$# -ge 2 ]; do \
- t=$$1; shift; \
- d=$$1; shift; \
- v=$${t%%%}; [ x"$$v" = x ] || v="\$$($${v}CPPFLAGS)"; \
- for s in $$asm .c; do \
- echo "\$$(objpfx)$$t$$o: $$dir/$$d$$s \$$(before-compile)"; \
- echo " \$$(compile-command$$s) $$v"; \
- done; \
- done; \
- done; \
- echo "\$$(inst_includedir)/%.h: $$dir/%.h \$$(+force)"; \
- echo " \$$(do-install)"; \
- done; \
- echo 'sysd-rules-done = t') > $@T
+ LC_ALL=C $(AWK) -f $< > $@T \
+ -v all_object_suffixes='$(all-object-suffixes)' \
+ -v inhibit_sysdep_asm='$(inhibit-sysdep-asm)' \
+ -v sysd_rules_patterns='$(sysd-rules-patterns)' \
+ -v config_sysdirs='$(config-sysdirs)'
mv -f $@T $@
ifndef sysd-rules-done
object-suffixes-left := $(all-object-suffixes)
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
# Generate version maps, but wait until sysdep-subdirs is known
ifeq ($(sysd-sorted-done),t)
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
-include $(common-objpfx)sysd-versions
$(addprefix $(common-objpfx),$(version-maps)): $(common-objpfx)sysd-versions
common-generated += $(version-maps)
) > $@T
mv -f $@T $@
endif # avoid-generated
-endif # $(versioning) = yes
+endif # $(build-shared) = yes
endif # sysd-sorted-done
# 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 =
endif
endif
-# Bounded pointer thunks are only built for *.ob
-elide-bp-thunks = $(addprefix $(bppfx),$(bp-thunks))
-
elide-routines.oS += $(filter-out $(static-only-routines),\
- $(routines) $(aux) $(sysdep_routines)) \
- $(elide-bp-thunks)
-elide-routines.os += $(static-only-routines) $(elide-bp-thunks)
+ $(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-bp-thunks)
-elide-routines.op += $(shared-only-routines) $(elide-bp-thunks)
-elide-routines.og += $(shared-only-routines) $(elide-bp-thunks)
-elide-routines.ob += $(shared-only-routines)
+elide-routines.o += $(shared-only-routines)
+elide-routines.op += $(shared-only-routines)
+elide-routines.og += $(shared-only-routines)
\f
# Shared library building.
ifeq (yes,$(build-shared))
-# Reference map file only when versioning is selected and a map file name
+# Reference map file only when shared libraries are built and a map file name
# is given.
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),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
+# Compiler arguments to use to link a shared object with libc and
+# ld.so. This is intended to be as similar as possible to a default
+# link with an installed libc.
+link-libc-args = -Wl,--start-group \
+ $(libc-for-link) \
+ $(common-objpfx)libc_nonshared.a \
+ $(as-needed) $(elfobjdir)/ld.so $(no-as-needed) \
+ -Wl,--end-group
+
+# The corresponding shared libc to use. This may be modified for a
+# particular target.
+libc-for-link = $(common-objpfx)libc.so
+
+# The corresponding dependencies. As these are used in dependencies,
+# not just commands, they cannot use target-specific variables so need
+# to name both possible libc.so objects.
+link-libc-deps = $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so \
+ $(common-objpfx)libc_nonshared.a $(elfobjdir)/ld.so
+
# 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) $(+interp)
-ifneq (,$(findstring aix,$(config-os)))
- (echo '#!'; \
- dump -g $< | sed '1,6d' | cut -f2 | sort | uniq) > $(<:a=exp)
-endif
- $(build-shlib)
+# on other shared objects. The linking with libc and ld.so is intended
+# to be as similar as possible to a default link with an installed libc.
+lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(+interp) $(link-libc-deps)
+ $(build-shlib) $(link-libc-args)
-ifeq ($(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) \
+ $(if $($(@F)-no-z-defs)$(no-z-defs),,-Wl,-z,defs) $(rtld-LDFLAGS) \
$(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
$(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
-Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
$(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
endef
-else
-ifneq (,$(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 =
+shlib-lds-flags =
+else
# binutils only position loadable notes into the first page for binaries,
# not for shared objects
$(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules
$(LINK.o) -shared -Wl,-O1 \
-nostdlib -nostartfiles \
- $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
+ $(sysdep-LDFLAGS) $(rtld-LDFLAGS) $(LDFLAGS.so) \
-Wl,--verbose 2>&1 | \
sed > $@T \
-e '/^=========/,/^=========/!d;/^=========/d' \
__libc_thread_subfreeres : { *(__libc_thread_subfreeres) }\
PROVIDE(__stop___libc_thread_subfreeres = .);\
/DISCARD/ : { *(.gnu.glibc-stub.*) }@'
+ test -s $@T
mv -f $@T $@
common-generated += shlib.lds
+shlib-lds = $(common-objpfx)shlib.lds
+shlib-lds-flags = -T $(shlib-lds)
+endif
+
define build-shlib
-$(build-shlib-helper) -o $@ -T $(common-objpfx)shlib.lds \
+$(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) $(config-LDFLAGS) \
+$(LINK.o) -shared $(static-libgcc) $(sysdep-LDFLAGS) $(rtld-LDFLAGS) \
$(if $($(@F)-no-z-defs)$(no-z-defs),,-Wl,-z,defs) \
-B$(csu-objpfx) $(load-map-file) \
$(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
-$(build-module-helper) -o $@ -T $(common-objpfx)shlib.lds \
- $(csu-objpfx)abi-note.o $(build-module-objlist)
+$(build-module-helper) -o $@ $(shlib-lds-flags) \
+ $(csu-objpfx)abi-note.o $(build-module-objlist) $(link-libc-args)
endef
define build-module-asneeded
-$(build-module-helper) -o $@ -T $(common-objpfx)shlib.lds \
+$(build-module-helper) -o $@ $(shlib-lds-flags) \
$(csu-objpfx)abi-note.o \
- -Wl,--as-needed $(build-module-objlist) -Wl,--no-as-needed
+ -Wl,--as-needed $(build-module-objlist) -Wl,--no-as-needed \
+ $(link-libc-args)
endef
-else
-ifneq (,$(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
+ $(filter-out %.lds $(map-file) $(+preinit) $(+postinit) \
+ $(link-libc-deps),$^))
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 $^
-# Use our own special initializer and finalizer files for libc.so.
+ $(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-objpfx)libc_pic.opts: $(common-objpfx)libc_pic.os
+ $(OBJDUMP) -h $< | \
+ $(AWK) '$$2 ~ /\.gnu\.glibc-stub\./ { print "-R", $$2 }' \
+ > $@T
+ mv -f $@T $@
+# Apply those -R options.
+$(common-objpfx)libc_pic.os.clean: $(common-objpfx)libc_pic.opts \
+ $(common-objpfx)libc_pic.os
+ $(OBJCOPY) @$^ $@
+generated += libc_pic.opts libc_pic.os.clean
+
+libc_pic_clean := .clean
+endif
+
+# Build a possibly-modified version of libc_pic.a for use in building
+# linkobj/libc.so.
+ifeq (,$(filter sunrpc,$(subdirs)))
+$(common-objpfx)linkobj/libc_pic.a: $(common-objpfx)libc_pic.a
+ $(make-target-directory)
+ ln -f $< $@
+else
+$(common-objpfx)linkobj/libc_pic.a: $(common-objpfx)libc_pic.a \
+ $(common-objpfx)sunrpc/librpc_compat_pic.a
+ $(make-target-directory)
+ (cd $(common-objpfx)linkobj; \
+ $(AR) x ../libc_pic.a; \
+ rm $$($(AR) t ../sunrpc/librpc_compat_pic.a | sed 's/^compat-//'); \
+ $(AR) x ../sunrpc/librpc_compat_pic.a; \
+ $(AR) cr libc_pic.a *.os; \
+ rm *.os)
+endif # $(subdirs) contains sunrpc
+
+# Clear link-libc-deps for the libc.so libraries so build-shlibs does not
+# filter ld.so out of the list of linked objects.
+$(common-objpfx)libc.so: link-libc-deps = # empty
+$(common-objpfx)linkobj/libc.so: link-libc-deps = # empty
+
+# Use our own special initializer and finalizer files for the libc.so
+# libraries.
$(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
- $(common-objpfx)libc_pic.os \
+ $(common-objpfx)libc_pic.os$(libc_pic_clean) \
+ $(elfobjdir)/sofini.os \
+ $(elfobjdir)/interp.os \
+ $(elfobjdir)/ld.so \
+ $(shlib-lds)
+ $(build-shlib)
+
+$(common-objpfx)linkobj/libc.so: $(elfobjdir)/soinit.os \
+ $(common-objpfx)linkobj/libc_pic.a \
$(elfobjdir)/sofini.os \
- $(elfobjdir)/interp.os $(elfobjdir)/ld.so \
- $(common-objpfx)shlib.lds
+ $(elfobjdir)/interp.os \
+ $(elfobjdir)/ld.so \
+ $(shlib-lds)
$(build-shlib)
-ifeq ($(versioning),yes)
+
+ifeq ($(build-shared),yes)
$(common-objpfx)libc.so: $(common-objpfx)libc.map
endif
common-generated += libc.so libc_pic.os
common-generated += libc.so$(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.
# This is the list of all object files, gotten by
# replacing every ".c" in `sources' with a ".o".
-# We also add bounded-pointer thunks, which are later
-# elided for all suffixes except for `.ob'.
-override objects := $(addprefix $(objpfx),$(sources:.c=.o) \
- $(patsubst %,$(bppfx)%.o,\
- $(filter $(routines) $(sysdep_routines),$(bp-thunks))))
+override objects := $(addprefix $(objpfx),$(sources:.c=.o))
# The makefile may define $(extra-libs) with `libfoo libbar'
extra-modules-build := $(filter-out $(modules-names-nobuild),$(modules-names))
$(extra-modules-build:%=$(objpfx)%.so): $(objpfx)%.so: \
- $(objpfx)%.os $(common-objpfx)shlib.lds \
- $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a
+ $(objpfx)%.os $(shlib-lds) $(link-libs-deps)
$(build-module)
endif
\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)
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))
$(patsubst %/,cd % &&,$(objpfx)) \
$(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \
$(patsubst $(objpfx)%,%,$^)
-$(RANLIB) $@
endef
\f
# Installation.
$(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)
# $(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.
symbolic-link-prog := $(common-objpfx)elf/sln
symbolic-link-list := $(common-objpfx)elf/symlink.list
define make-shlib-link
-echo $(<F) $@ >> $(symbolic-link-list)
+echo `$(..)scripts/rellns-sh -p $< $@` $@ >> $(symbolic-link-list)
endef
else # cross-compiling
# We need a definition that can be used by elf/Makefile's install rules.
ifndef make-shlib-link
define make-shlib-link
rm -f $@
-$(LN_S) $(<F) $@
+$(LN_S) `$(..)scripts/rellns-sh -p $< $@` $@
endef
endif
$(common-objpfx)format.lds: $(..)scripts/output-format.sed \
$(common-objpfx)config.make \
$(common-objpfx)config.h $(..)Makerules
- $(LINK.o) -shared $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
+ifneq (unknown,$(output-format))
+ echo > $@.new 'OUTPUT_FORMAT($(output-format))'
+else
+ $(LINK.o) -shared $(sysdep-LDFLAGS) $(rtld-LDFLAGS) $(LDFLAGS.so) \
-x c /dev/null -o $@.so -Wl,--verbose -v 2>&1 \
| sed -n -f $< > $@.new
+ test -s $@.new
rm -f $@.so
+endif
mv -f $@.new $@
common-generated += format.lds
cat $<; \
echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
'$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
- ' AS_NEEDED (' $(slibdir)/$(rtld-installed-name) ') )' \
+ ' AS_NEEDED (' $(rtlddir)/$(rtld-installed-name) ') )' \
) > $@.new
mv -f $@.new $@
$(install-lib.a:lib%.a=$(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
# 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 $(common-objpfx)config.h
# Support the GNU standard name for this target.
.PHONY: check
CPPFLAGS-nonlib = -DNOT_IN_libc=1
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
# Generate normalized lists of symbols, versions, and data sizes.
# This is handy for checking against existing library binaries.
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
+# A sysdeps/.../Makefile can set abilist-pattern to something like
+# %-foo.abilist to look for libc-foo.abilist instead of libc.abilist.
+# This makes sense if multiple ABIs can be most cleanly supported by a
+# configuration without using separate sysdeps directories for each.
+ifdef abilist-pattern
+vpath $(abilist-pattern) $(+sysdep_dirs)
+endif
+
+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)
+
+ifdef abilist-pattern
+check-abi-%: $(common-objpfx)config.make $(abilist-pattern) $(objpfx)%.symlist
+ $(check-abi-pattern)
+check-abi-%: $(common-objpfx)config.make $(abilist-pattern) \
+ $(common-objpfx)%.symlist
+ $(check-abi-pattern)
+endif
+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-pattern
+ diff -p -U 0 $(filter $(abilist-pattern),$^) $(filter %.symlist,$^)
+endef
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)
+ifdef abilist-pattern
+update-abi-%: $(objpfx)%.symlist $(abilist-pattern)
+ $(update-abi-pattern)
+update-abi-%: $(common-objpfx)%.symlist $(abilist-pattern)
+ $(update-abi-pattern)
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
+define update-abi-pattern
+@if cmp -s $^ 2> /dev/null; \
+ then \
+ echo '+++ $(filter $(abilist-pattern),$^) is unchanged'; \
+ else cp -f $^; \
+ echo '*** Now check $(filter $(abilist-pattern),$^) changes for correctness ***'; \
+ fi
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)
do-tests-clean:
-rm -f $(addprefix $(objpfx),$(addsuffix .out,$(tests) $(xtests) \
- $(test-srcs)) \
- $(addsuffix -bp.out,$(tests) $(xtests) \
- $(test-srcs)))
+ $(test-srcs)))
# Remove the object files.
common-mostlyclean:
$(addsuffix .o,$(tests) $(xtests) \
$(test-srcs) $(others) \
$(sysdep-others)) \
- $(addsuffix -bp,$(tests) $(xtests) \
- $(test-srcs)) \
$(addsuffix .out,$(tests) $(xtests) \
- $(test-srcs)) \
- $(addsuffix -bp.out,$(tests) $(xtests) \
- $(test-srcs)))
+ $(test-srcs)))
-rm -f $(addprefix $(objpfx),$(extra-objs) $(extra-test-objs) \
$(install-lib) $(install-lib.so) \
$(install-lib.so:%.so=%_pic.a))
-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