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Use newly built crt*.o files to build shared objects [BZ #22362]
When multi-lib GCC is used to build glibc, the search order of GCC driver for crt*.o is -B*/`gcc -print-multi-directory`, the installed diretory, -B*/. This patch adds multi-lib support to csu/Makefile so that -B/glibc-build-directory/csu/ will pick up the newly built crt*.o. Tested on x86-64 for i686 and x32. [BZ #22362] * Makerules (make-link-multidir): New. * config.make.in (multidir): New. * configure.ac (libc_cv_multidir): New. AC_SUBST. * configure: Regenerated. * csu/Makefile [$(multidir) != .](multilib-extra-objs): New. [$(multidir) != .](extra-objs): Add $(multilib-extra-objs). [$(multidir) != .]($(addprefix $(objpfx)$(multidir)/, $(install-lib))): New target.
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12
ChangeLog
12
ChangeLog
@ -1,3 +1,15 @@
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2017-11-06 H.J. Lu <hongjiu.lu@intel.com>
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[BZ #22362]
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* Makerules (make-link-multidir): New.
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* config.make.in (multidir): New.
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* configure.ac (libc_cv_multidir): New. AC_SUBST.
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* configure: Regenerated.
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* csu/Makefile [$(multidir) != .](multilib-extra-objs): New.
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[$(multidir) != .](extra-objs): Add $(multilib-extra-objs).
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[$(multidir) != .]($(addprefix $(objpfx)$(multidir)/, $(install-lib))):
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New target.
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2017-11-06 Joseph Myers <joseph@codesourcery.com>
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[BZ #22402]
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@ -1079,6 +1079,11 @@ rm -f $@.new
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$(SHELL) $(..)scripts/rellns-sh $< $@.new
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mv -f $@.new $@
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endef
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define make-link-multidir
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$(patsubst %/,cd %,$(objpfx)); \
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$(LN_S) . $(multidir) 2> /dev/null; \
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test -L $(multidir)
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endef
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else
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# If we have no symbolic links don't bother with rellns-sh.
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define make-link
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@ -1086,6 +1091,10 @@ rm -f $@.new
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$(LN_S) $< $@.new
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mv -f $@.new $@
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endef
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define make-link-multidir
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$(make-target-directory)
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ln -f $(objpfx)/$(@F) $@
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endef
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endif
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ifeq (yes,$(build-shared))
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@ -21,6 +21,7 @@ includedir = @includedir@
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datarootdir = @datarootdir@
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localstatedir = @libc_cv_localstatedir@
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localedir = @localedir@
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multidir= @libc_cv_multidir@
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# Should we use and build ldconfig?
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use-ldconfig = @use_ldconfig@
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6
configure
vendored
6
configure
vendored
@ -594,6 +594,7 @@ mach_interface_list
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DEFINES
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static_nss
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profile
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libc_cv_multidir
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libc_cv_pie_default
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libc_cv_pic_default
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shared
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@ -6698,6 +6699,11 @@ fi
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$as_echo "$libc_cv_pie_default" >&6; }
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# Set the `multidir' variable by grabbing the variable from the compiler.
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# We do it once and save the result in a generated makefile.
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libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
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@ -1783,6 +1783,11 @@ fi
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rm -f conftest.*])
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AC_SUBST(libc_cv_pie_default)
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# Set the `multidir' variable by grabbing the variable from the compiler.
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# We do it once and save the result in a generated makefile.
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libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
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AC_SUBST(libc_cv_multidir)
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AC_SUBST(profile)
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AC_SUBST(static_nss)
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10
csu/Makefile
10
csu/Makefile
@ -77,6 +77,11 @@ crtstuff = crti crtn
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install-lib += $(crtstuff:=.o)
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extra-objs += $(crtstuff:=.o)
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ifneq ($(multidir),.)
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multilib-extra-objs = $(addprefix $(multidir)/, $(install-lib))
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extra-objs += $(multilib-extra-objs)
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endif
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extra-objs += abi-note.o init.o
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asm-CPPFLAGS += -I$(objpfx).
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@ -147,3 +152,8 @@ $(objpfx)abi-tag.h: $(..)abi-tags
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done
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if test -r $@.new; then mv -f $@.new $@; \
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else echo >&2 'This configuration not matched in $<'; exit 1; fi
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ifneq ($(multidir),.)
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$(addprefix $(objpfx)$(multidir)/, $(install-lib)): $(addprefix $(objpfx), $(install-lib))
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$(make-link-multidir)
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endif
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