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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /Makeconfig
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'Makeconfig')
-rw-r--r--Makeconfig234
1 files changed, 132 insertions, 102 deletions
diff --git a/Makeconfig b/Makeconfig
index 5a1aebccff..d267e5af21 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2003,2004,2005,2006 Free Software Foundation, Inc.
+# Copyright (C) 1991-2003, 2004 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
@@ -99,21 +99,7 @@ binfmt-subdir = aout
endif
# Complete path to sysdep dirs.
-# `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
+export full_config_sysdirs := $(addprefix $(..),$(config-sysdirs))
# 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
@@ -127,16 +113,16 @@ $(common-objpfx)config.make: $(common-objpfx)config.status \
# 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 \
- $(foreach dir,$(sysdirs),\
- $(wildcard $(dir)/Implies) \
+ $(foreach dir,$(full_config_sysdirs),\
+ $(wildcard \
+ $(dir)/Implies) \
$(patsubst %.in,%,\
$(firstword $(wildcard \
$(addprefix $(dir)/,configure configure.in))))) \
$(patsubst %.in,%,\
- $(foreach add-on,$(add-ons),\
+ $(foreach dir,$(add-ons),\
$(firstword $(wildcard \
- $(addprefix $(firstword $(filter /%,$(add-on)) $(..)$(add-on))/,\
- configure configure.in)))))
+ $(addprefix $(..)$(dir)/,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; \
@@ -413,20 +399,11 @@ LDFLAGS.so += $(relro-LDFLAGS)
LDFLAGS-rtld += $(relro-LDFLAGS)
endif
-ifeq (yes,$(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) $(hashstyle-LDFLAGS) \
+ $(combreloc-LDFLAGS) $(relro-LDFLAGS) \
$(addprefix $(csu-objpfx),$(start-installed-name)) \
$(+preinit) $(+prector) \
$(filter-out $(addprefix $(csu-objpfx),start.o \
@@ -438,7 +415,7 @@ endif
# Command for statically linking programs with the C library.
ifndef +link-static
+link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \
- $(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
+ $(sysdep-LDFLAGS) $(LDFLAGS) \
$(addprefix $(csu-objpfx),$(static-start-installed-name)) \
$(+preinit) $(+prector) \
$(filter-out $(addprefix $(csu-objpfx),start.o \
@@ -503,21 +480,32 @@ default-rpath = $(libdir)
endif
ifndef link-extra-libs
-link-extra-libs = $(LDLIBS-$(@F))
-link-extra-libs-static = $(link-extra-libs)
-link-extra-libs-bounded = $(link-extra-libs)
+ifeq (yes,$(build-shared))
+ifneq ($(common-objpfx),$(objpfx))
+link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),\
+ $(wildcard $(common-objpfx)$(lib).so$($(notdir $(lib)).so-version) \
+ $(objpfx)$(lib).so$($(notdir $(lib)).so-version)))
+else
+link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).so$($(notdir $(lib)).so-version))
+endif
+else
+link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
+endif
endif
# The static libraries.
ifeq (yes,$(build-static))
link-libc-static = $(common-objpfx)libc.a $(static-gnulib) $(common-objpfx)libc.a
+link-extra-libs-static = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
else
ifeq (yes,$(build-shared))
# We can try to link the programs with lib*_pic.a...
link-libc-static = $(static-gnulib) $(common-objpfx)libc_pic.a
+link-extra-libs-static = $(link-extra-libs)
endif
endif
link-libc-bounded = $(common-objpfx)libc_b.a $(gnulib) $(common-objpfx)libc_b.a
+link-extra-libs-bounded = $(foreach lib,$(LDLIBS-$(@F:%-bp=%)),$(common-objpfx)$(lib)_b.a)
ifndef gnulib
ifneq ($(have-cc-with-libunwind),yes)
@@ -575,15 +563,10 @@ endif
# Extra flags to pass to GCC.
ifeq ($(all-warnings),yes)
-+gccwarn := -Wall -Wwrite-strings -Winline -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
++gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
else
-+gccwarn := -Wall -Wwrite-strings -Winline
++gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes
endif
-+gccwarn-c = -Wstrict-prototypes
-
-# We do not depend on the address of constants in different files to be
-# actually different, so allow the compiler to merge them all.
-+merge-constants = -fmerge-all-constants
# This is the program that generates makefile dependencies from C source files.
# The -MP flag tells GCC >= 3.2 (which we now require) to produce dummy
@@ -595,11 +578,6 @@ endif
# The program that makes Emacs-style TAGS files.
ETAGS := etags
-# The `xgettext' program for producing .pot files from sources.
-ifndef XGETTEXT
-XGETTEXT = xgettext
-endif
-
# The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and
# perhaps others) to preprocess assembly code in some cases.
M4 = m4
@@ -644,21 +622,21 @@ ifeq "$(strip $(+cflags))" ""
+cflags := $(default_cflags)
endif # $(+cflags) == ""
-+cflags += $(addprefix -mcpu=,$(with-cpu)) $(+gccwarn) $(+merge-constants)
++cflags := $(+cflags) $(+gccwarn)
+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 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. $(sysincludes)
+# These are flags given to the C compiler to tell it to look for include
+# files (including ones given in angle brackets) in the current directory,
+# in the parent library source directory and in the include directory.
+# `+sysdep-includes' will be defined by Makerules.
++includes = -I$(..)include -I. \
+ $(patsubst %/,-I%,$(objpfx)) $(patsubst %/,-I%,$(..)) \
+ $(libio-include) $(includes) \
+ $(+sysdep-includes) $(sysincludes)
# Since libio has several internal header files, we use a -I instead
# of many little headers in the include directory.
@@ -675,12 +653,8 @@ CPPFLAGS = $($(subdir)-CPPFLAGS) $(+includes) $(defines) \
$(libof-$(<F)) $(libof-$(@F)),$(CPPFLAGS-$(lib))) \
$(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F)) $(CPPFLAGS-$(basename $(@F)))
override CFLAGS = -std=gnu99 \
- $(filter-out %frame-pointer,$(+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))
+ $(filter-out %frame-pointer,$(+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.
@@ -769,16 +743,20 @@ endif
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
+-include $(common-objpfx)sysd-dirs
+
+ifeq ($(sysd-dirs-done),t)
-include $(common-objpfx)sysd-sorted
subdirs = $(sorted-subdirs)
-subdir-srcdirs = $(foreach dir,$(subdirs),\
- $(firstword $($(dir)-srcdir) $(..)$(dir)))
+endif
ifeq (yes, $(build-shared))
@@ -792,7 +770,8 @@ ifeq (yes, $(build-shared))
# (but no commands).
%.v.i: $(common-objpfx)config.h
sed '/^[ ]*#/d;s/^[ ]*%/#/' $(filter-out FORCE %.h,$^) \
- | $(CC) -E -undef $(CPPFLAGS) -x assembler-with-cpp - \
+ | $(CC) -E -undef $(CPPFLAGS) \
+ -DASSEMBLER -x assembler-with-cpp - \
> $@T
mv -f $@T $@
%.v: %.v.i
@@ -808,8 +787,9 @@ ifndef avoid-generated
# This lets add-ons give more-specific matches that override defaults
# in the top-level file.
$(common-objpfx)shlib-versions.v.i: \
- $(wildcard $(+sysdep_dirs:=/shlib-versions) \
- $(subdir-srcdirs:=/shlib-versions)) \
+ $(wildcard $(patsubst %, $(..)%/shlib-versions,$(add-ons) \
+ $(config-sysdirs) \
+ $(subdirs))) \
$(..)shlib-versions
soversions-default-setname = $(patsubst %, %,\
@@ -818,16 +798,11 @@ soversions-default-setname = $(patsubst %, %,\
$(common-objpfx)soversions.i: $(..)scripts/soversions.awk \
$(common-objpfx)shlib-versions.v
$(AWK) -v default_setname='$(soversions-default-setname)' \
- -v cpu='$(config-machine)' \
- -v vendor='$(config-vendor)' \
- -v os='$(config-os)' \
+ -v config='$(config-machine)-$(config-vendor)-$(config-os)' \
-f $^ > $@T
mv -f $@T $@
-$(common-objpfx)soversions.mk: $(common-objpfx)soversions.i $(..)Makeconfig
- (seen_DEFAULT=0; seen_WORDSIZE32=0; seen_WORDSIZE64=0; \
- while read which lib number setname; do \
- eval seen_$$which=1; \
- test x"$$which" = xDEFAULT || continue; \
+$(common-objpfx)soversions.mk: $(common-objpfx)soversions.i
+ (while read lib number setname; do \
case $$number in \
[0-9]*) echo "$$lib.so-version=.$$number"; \
echo "all-sonames+=$$lib=$$lib.so\$$($$lib.so-version)";;\
@@ -835,12 +810,6 @@ $(common-objpfx)soversions.mk: $(common-objpfx)soversions.i $(..)Makeconfig
echo "all-sonames+=$$lib=\$$($$lib.so-version)";;\
esac; \
done; \
- case "$$seen_DEFAULT$$seen_WORDSIZE32$$seen_WORDSIZE64" in \
- 100) echo biarch = no;; \
- 101) echo biarch = 32;; \
- ?1?) echo biarch = 64;; \
- *) echo >&2 BUG; exit 2;; \
- esac; \
echo soversions.mk-done = t;) < $< > $@T; exit 0
mv -f $@T $@
endif
@@ -854,11 +823,31 @@ postclean-generated += soversions.mk soversions.i \
before-compile += $(common-objpfx)gnu/lib-names.h
ifeq ($(soversions.mk-done),t)
$(common-objpfx)gnu/lib-names.h: $(common-objpfx)gnu/lib-names.stmp; @:
-$(common-objpfx)gnu/lib-names.stmp: $(..)scripts/lib-names.awk \
- $(common-objpfx)soversions.i
+$(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk
$(make-target-directory)
@rm -f ${@:stmp=T} $@
- $(AWK) -f $^ > ${@:stmp=T}
+ (echo '/* This file is automatically generated.';\
+ echo ' It defines macros to allow user program to find the shared';\
+ echo ' library files which come as part of GNU libc. */';\
+ echo '#ifndef __GNU_LIB_NAMES_H'; \
+ echo '#define __GNU_LIB_NAMES_H 1'; \
+ echo; \
+ (libs='$(all-sonames)';\
+ for l in $$libs; do \
+ name=`echo $$l | sed 's/.*=//'`; \
+ upname=`echo $$l | sed 's/=.*//' | \
+ tr 'abcdefghijklmnopqrstuvwxyz-' \
+ 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \
+ upname2=`echo $$name | sed 's/[.]so.*//' | \
+ tr 'abcdefghijklmnopqrstuvwxyz-' \
+ 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \
+ echo "#define $${upname}_SO \"$$name\""; \
+ if test $$upname != $$upname2; then \
+ echo "#define $${upname2}_SO \"$$name\""; \
+ fi; \
+ done;) | sort; \
+ echo; \
+ echo '#endif /* gnu/lib-names.h */';) > ${@:stmp=T}
$(move-if-change) ${@:stmp=T} ${@:stmp=h}
touch $@
endif
@@ -909,39 +898,80 @@ 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.
+# dependencies. Only the $(binfmt-subdir) should always be kept at the
+# end of the list.
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 nss localedata timezone rt conform debug \
- $(add-on-subdirs) $(dlfcn) $(binfmt-subdir)
+ 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))
ifndef avoid-generated
-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
+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
mv -f $@-tmp $@
-$(all-Depend-files): ;
endif
# Let sysdeps/ subdirs contain a Makeconfig fragment for us to include here.
-sysdep-makeconfigs := $(wildcard $(+sysdep_dirs:=/Makeconfig))
+sysdep-makeconfigs := $(wildcard $(patsubst %,$(..)%/Makeconfig,\
+ $(config-sysdirs) $(add-ons)))
+
ifneq (,$(sysdep-makeconfigs))
-include $(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 $M)
endif
endif # Makeconfig not yet included
+# The whole body above didn't run when we are included as a subroutine
+# of ourselves in the sysdep-makeconfigs include line. This bit runs.
+ifneq (,$(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: