-# Copyright (C) 1991-2003, 2004, 2005 Free Software Foundation, Inc.
+# Copyright (C) 1991-2003,2004,2005,2006,2007,2008
+# 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
endif
# Complete path to sysdep dirs.
-export full_config_sysdirs := $(addprefix $(..),$(config-sysdirs))
+# `configure' writes a definition of `config-sysdirs' in `config.make'.
+sysdirs := $(foreach D,$(config-sysdirs),$(firstword $(filter /%,$D) $(..)$D))
+
+# Add-ons that contribute sysdeps trees get added to the include list
+# after sysdeps/generic. This makes #include <sysdeps/...> work right
+# to find specific add-on files without assuming the add-on directory name.
+# It also means that headers can go into an add-on's base directory
+# instead of the add-on needing a sysdeps/generic of its own.
+sysdeps-srcdirs := $(foreach add-on,$(sysdeps-add-ons),\
+ $(firstword $(filter /%,$(add-on)) \
+ $(..)$(add-on)))
++sysdep_dirs = $(sysdirs) $(sysdeps-srcdirs)
+ifdef objdir
++sysdep_dirs := $(objdir) $(+sysdep_dirs)
+endif
# Run config.status to update config.make and config.h. We don't show the
# dependence of config.h to Make, because it is only touched when it
# Find all the add-on and sysdeps configure fragments, to make sure we
# re-run configure when any of them changes.
$(common-objpfx)config.status: $(..)version.h $(..)configure \
- $(foreach dir,$(full_config_sysdirs),\
- $(wildcard \
- $(dir)/Implies) \
+ $(foreach dir,$(sysdirs),\
+ $(wildcard $(dir)/Implies) \
$(patsubst %.in,%,\
$(firstword $(wildcard \
$(addprefix $(dir)/,configure configure.in))))) \
$(patsubst %.in,%,\
- $(foreach dir,$(add-ons),\
+ $(foreach add-on,$(add-ons),\
$(firstword $(wildcard \
- $(addprefix $(..)$(dir)/,configure configure.in)))))
+ $(addprefix $(firstword $(filter /%,$(add-on)) $(..)$(add-on))/,\
+ configure configure.in)))))
@cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
echo The GNU C library has not been configured. >&2; \
echo Run \`configure\' to configure it before building. >&2; \
LDFLAGS-rtld += $(combreloc-LDFLAGS)
endif
-ifeq (yes,$(have-z-relro))
relro-LDFLAGS = -Wl,-z,relro
LDFLAGS.so += $(relro-LDFLAGS)
LDFLAGS-rtld += $(relro-LDFLAGS)
+
+ifeq (yes,$(have-hash-style))
+# For the time being we unconditionally use 'both'. At some time we
+# should declare statically linked code as 'out of luck' and compile
+# with --hash-style=gnu only.
+hashstyle-LDFLAGS = -Wl,--hash-style=both
+LDFLAGS.so += $(hashstyle-LDFLAGS)
+LDFLAGS-rtld += $(hashstyle-LDFLAGS)
endif
# Command for linking programs with the C library.
ifndef +link
+link = $(CC) -nostdlib -nostartfiles -o $@ \
$(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
- $(combreloc-LDFLAGS) $(relro-LDFLAGS) \
+ $(combreloc-LDFLAGS) $(relro-LDFLAGS) $(hashstyle-LDFLAGS) \
$(addprefix $(csu-objpfx),$(start-installed-name)) \
$(+preinit) $(+prector) \
$(filter-out $(addprefix $(csu-objpfx),start.o \
# Command for statically linking programs with the C library.
ifndef +link-static
+link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \
- $(sysdep-LDFLAGS) $(LDFLAGS) \
+ $(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
$(addprefix $(csu-objpfx),$(static-start-installed-name)) \
$(+preinit) $(+prector) \
$(filter-out $(addprefix $(csu-objpfx),start.o \
# Extra flags to pass to GCC.
ifeq ($(all-warnings),yes)
-+gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
++gccwarn := -Wall -Wwrite-strings -Winline -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
else
-+gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes
++gccwarn := -Wall -Wwrite-strings -Winline
endif
++gccwarn-c = -Wstrict-prototypes
+
+# We do not depend on the address of constants in different files to be
+# actually different, so allow the compiler to merge them all.
++merge-constants = -fmerge-all-constants
# This is the program that generates makefile dependencies from C source files.
# The -MP flag tells GCC >= 3.2 (which we now require) to produce dummy
# The program that makes Emacs-style TAGS files.
ETAGS := etags
+# The `xgettext' program for producing .pot files from sources.
+ifndef XGETTEXT
+XGETTEXT = xgettext
+endif
+
# The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and
# perhaps others) to preprocess assembly code in some cases.
M4 = m4
+cflags := $(default_cflags)
endif # $(+cflags) == ""
-+cflags := $(+cflags) $(+gccwarn)
++cflags += $(addprefix -mcpu=,$(with-cpu)) $(+gccwarn) $(+merge-constants)
+gcc-nowarn := -w
# Don't duplicate options if we inherited variables from the parent.
+cflags := $(sort $(+cflags))
-# These are flags given to the C compiler to tell it to look for include
-# files (including ones given in angle brackets) in the current directory,
-# in the parent library source directory and in the include directory.
-# `+sysdep-includes' will be defined by Makerules.
-+includes = -I$(..)include -I. \
- $(patsubst %/,-I%,$(objpfx)) $(patsubst %/,-I%,$(..)) \
- $(libio-include) $(includes) \
- $(+sysdep-includes) $(sysincludes)
+# These are flags given to the C compiler to tell it to look for
+# include files (including ones given in angle brackets) in the parent
+# library source directory, in the include directory, and in the
+# current directory.
++sysdep-includes = $(addprefix -I,$(+sysdep_dirs))
++includes = -I$(..)include $(if $(subdir),$(objpfx:%/=-I%)) \
+ $(+sysdep-includes) $(includes) \
+ $(patsubst %/,-I%,$(..)) $(libio-include) -I. $(sysincludes)
# Since libio has several internal header files, we use a -I instead
# of many little headers in the include directory.
$(foreach lib,$(libof-$(basename $(@F))) \
$(libof-$(<F)) $(libof-$(@F)),$(CPPFLAGS-$(lib))) \
$(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F)) $(CPPFLAGS-$(basename $(@F)))
-override CFLAGS = -std=gnu99 \
- $(filter-out %frame-pointer,$(+cflags)) $(sysdep-CFLAGS) \
- $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) $(CFLAGS-$(@F))
+override CFLAGS = -std=gnu99 $(gnu89-inline-CFLAGS) \
+ $(filter-out %frame-pointer,$(+cflags)) $(+gccwarn-c) \
+ $(sysdep-CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) \
+ $(CFLAGS-$(@F))
+override CXXFLAGS = $(c++-sysincludes) \
+ $(filter-out %frame-pointer,$(+cflags)) $(sysdep-CFLAGS) \
+ $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) $(CFLAGS-$(@F))
# If everything is compiled with -fPIC (implicitly) we must tell this by
# defining the PIC symbol.
endif
ASFLAGS += $(ASFLAGS-config)
-+gnu-stabs = $(shell echo>&2 '*** BARF ON ME')
-
ifndef BUILD_CC
BUILD_CC = $(CC)
endif
move-if-change = $(SHELL) $(..)scripts/move-if-change
\f
--include $(common-objpfx)sysd-dirs
-
-ifeq ($(sysd-dirs-done),t)
-include $(common-objpfx)sysd-sorted
subdirs = $(sorted-subdirs)
-endif
+subdir-srcdirs = $(foreach dir,$(subdirs),\
+ $(firstword $($(dir)-srcdir) $(..)$(dir)))
ifeq (yes, $(build-shared))
# (but no commands).
%.v.i: $(common-objpfx)config.h
sed '/^[ ]*#/d;s/^[ ]*%/#/' $(filter-out FORCE %.h,$^) \
- | $(CC) -E -undef $(CPPFLAGS) \
- -DASSEMBLER -x assembler-with-cpp - \
+ | $(CC) -E -undef $(CPPFLAGS) -x assembler-with-cpp - \
> $@T
mv -f $@T $@
%.v: %.v.i
# This lets add-ons give more-specific matches that override defaults
# in the top-level file.
$(common-objpfx)shlib-versions.v.i: \
- $(wildcard $(patsubst %, $(..)%/shlib-versions,$(add-ons) \
- $(config-sysdirs) \
- $(subdirs))) \
+ $(wildcard $(+sysdep_dirs:=/shlib-versions) \
+ $(subdir-srcdirs:=/shlib-versions)) \
$(..)shlib-versions
soversions-default-setname = $(patsubst %, %,\
$(common-objpfx)soversions.i
$(make-target-directory)
@rm -f ${@:stmp=T} $@
- $(AWK) -f $^ > ${@:stmp=T}
+ LC_ALL=C $(AWK) -f $^ > ${@:stmp=T}
$(move-if-change) ${@:stmp=T} ${@:stmp=h}
touch $@
endif
# These are the subdirectories containing the library source. The order
# is more or less arbitrary. The sorting step will take care of the
-# dependencies. Only the $(binfmt-subdir) should always be kept at the
-# end of the list.
+# dependencies.
all-subdirs = csu assert ctype locale intl catgets math setjmp signal \
- stdlib stdio-common libio malloc string wcsmbs time dirent \
+ stdlib stdio-common libio malloc string wcsmbs time dirent \
grp pwd posix io termios resource misc socket sysvipc gmon \
gnulib iconv iconvdata wctype manual shadow po argp \
- crypt $(add-ons) nss localedata timezone rt conform debug \
- $(sysdep-subdirs) $(dlfcn) $(binfmt-subdir)
-all-subdirs := $(filter-out $(sysdep-inhibit-subdirs),$(all-subdirs))
-
-# The mach and hurd subdirectories have many generated header files which
-# much of the rest of the library depends on, so it is best to build them
-# first (and mach before hurd, at that). The before-compile additions in
-# sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
-# not to exist when making in other directories, but it will be slower that
-# way with more somewhat expensive `make' invocations.
-subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
- $(filter-out mach hurd,$(subdirs))
+ crypt nss localedata timezone rt conform debug \
+ $(add-on-subdirs) $(dlfcn) $(binfmt-subdir)
ifndef avoid-generated
-all-Subdirs-files = $(wildcard $(config-sysdirs:%=$(..)%/Subdirs))
-$(common-objpfx)sysd-dirs: $(common-objpfx)config.make $(all-Subdirs-files)
- $(AWK) 'BEGIN { subdirs = ""; inhibit = "" }; \
- /^#/ { next }; \
- /^[^-]/ { subdirs = subdirs " " $$0 }; \
- /^-/ { inhibit = inhibit " " substr($$0, 2) }; \
- END { printf "sysdep-subdirs =%s\n", subdirs; \
- printf "sysdep-inhibit-subdirs =%s\n", inhibit; \
- print "sysd-dirs-done = t" }' \
- $(patsubst $<,/dev/null,$^) > $@-tmp
- mv -f $@-tmp $@
-
-all-Depend-files = $(wildcard $(..)*/Depend)
-$(common-objpfx)sysd-sorted: $(..)scripts/gen-sorted.awk $(all-Depend-files) \
- $(common-objpfx)sysd-dirs $(..)Makeconfig
- { { dirs='$(patsubst $(..)%/Depend,%,$(filter %/Depend,$^))'; \
- for d in $$dirs; do \
- while read on; do \
- echo "depend $$d $$on"; \
- done < $(..)$$d/Depend; \
- done; \
- for f in $(all-subdirs); do \
- echo $$f; \
- done; \
- } | $(AWK) -f $< && \
- echo sysd-sorted-done = t; \
- } > $@-tmp
+all-Depend-files := $(wildcard $(foreach dir,$(all-subdirs),\
+ $(firstword $($(dir)-srcdir) \
+ $(..)$(dir))/Depend))
+$(common-objpfx)sysd-sorted: $(..)scripts/gen-sorted.awk \
+ $(common-objpfx)config.make $(..)Makeconfig \
+ $(wildcard $(sysdirs:=/Subdirs)) \
+ $(all-Depend-files)
+ $(AWK) -f $< \
+ -v subdirs='$(all-subdirs)' \
+ -v srcpfx='$(..)' \
+ $(filter %/Subdirs %/Depend,$^) > $@-tmp
mv -f $@-tmp $@
+$(all-Depend-files): ;
endif
-# Let sysdeps/ subdirs contain a Makeconfig fragment for us to include here.
-sysdep-makeconfigs := $(wildcard $(patsubst %,$(..)%/Makeconfig,\
- $(config-sysdirs) $(add-ons)))
+# This gives partial TARGET:SOURCE pattern pairs to have rules
+# emitted into sysd-rules. A sysdeps Makeconfig fragment can
+# add its own special object file prefix to this list with e.g. foo-%:%
+# to have foo-*.? compiled from *.? using $(foo-CPPFLAGS).
+sysd-rules-patterns := %:% rtld-%:% m_%:s_%
+# Let sysdeps/ subdirs contain a Makeconfig fragment for us to include here.
+sysdep-makeconfigs := $(wildcard $(+sysdep_dirs:=/Makeconfig))
ifneq (,$(sysdep-makeconfigs))
-Makeconfig-doing-sysdep := $(sysdep-makeconfigs)
-# Before each one, include ourselves again to do the bit below that
-# will set `Makeconfig-add-on' in an add-on's Makeconfig fragment.
-include $(foreach M,$(sysdep-makeconfigs),$(..)Makeconfig $M)
+include $(sysdep-makeconfigs)
endif
+# Compute just the target patterns. Makeconfig has set sysd-rules-patterns.
+sysd-rules-targets := $(foreach p,$(sysd-rules-patterns),\
+ $(firstword $(subst :, ,$p)))
endif # Makeconfig not yet included
-# The whole body above didn't run when we are included as a subroutine
-# of ourselves in the sysdep-makeconfigs include line. This bit runs.
-ifneq (,$(Makeconfig-doing-sysdep))
-sysdep-Makeconfig := $(firstword $(Makeconfig-doing-sysdep))
-Makeconfig-doing-sysdep := $(filter-out $(sysdep-Makeconfig),\
- $(Makeconfig-doing-sysdep))
-Makeconfig-add-on := $(filter $(add-ons),$(patsubst $(..)%/Makeconfig,%,\
- $(sysdep-Makeconfig)))
-endif
-
# Local Variables:
# mode: makefile
# End:
git://sourceware.org / glibc.git / blobdiff