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Consolidate PIE linking Makefile rules.

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H.J. Lu 2009-06-16 09:19:59 -07:00 committed by Ulrich Drepper
parent 25bfbb9e0e
commit 435aa54b3b
4 changed files with 27 additions and 17 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2009-06-02 H.J. Lu <hongjiu.lu@intel.com>
* Makeconfig (+link-pie): Define.
(+prectorS): Define.
(+postctorS): Define.
* elf/Makefile ($(objpfx)tst-pie1): Use $(+link-pie).
* nscd/Makefile ($(objpfx)nscd): Likewise.
2009-04-22 Ryan S. Arnold <rsa@us.ibm.com>
[BZ #10107]

16
Makeconfig
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@ -434,6 +434,19 @@ ifndef +link
$(common-objpfx)libc% $(+postinit),$^) \
$(link-extra-libs) $(link-libc) $(+postctor) $(+postinit)
endif
# Command for linking PIE programs with the C library.
ifndef +link-pie
+link-pie = $(CC) -pie -Wl,-O1 -nostdlib -nostartfiles -o $@ \
$(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
$(combreloc-LDFLAGS) $(relro-LDFLAGS) $(hashstyle-LDFLAGS) \
$(addprefix $(csu-objpfx),S$(start-installed-name)) \
$(+preinit) $(+prectorS) \
$(filter-out $(addprefix $(csu-objpfx),start.o \
S$(start-installed-name))\
$(+preinit) $(link-extra-libs) \
$(common-objpfx)libc% $(+postinit),$^) \
$(link-extra-libs) $(link-libc) $(+postctorS) $(+postinit)
endif
# Command for statically linking programs with the C library.
ifndef +link-static
+link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \
@ -538,6 +551,9 @@ ifeq ($(elf),yes)
+postinit = $(addprefix $(csu-objpfx),crtn.o)
+prector = `$(CC) --print-file-name=crtbegin.o`
+postctor = `$(CC) --print-file-name=crtend.o`
# Variants of the two previous definitions for linking PIE programs.
+prectorS = `$(CC) --print-file-name=crtbeginS.o`
+postctorS = `$(CC) --print-file-name=crtendS.o`
+interp = $(addprefix $(elf-objpfx),interp.os)
endif
csu-objpfx = $(common-objpfx)csu/

9
elf/Makefile
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@ -852,14 +852,7 @@ $(objpfx)tst-pie1.out: $(objpfx)tst-pie1
$< > $@
$(objpfx)tst-pie1: $(objpfx)tst-pie1.o $(objpfx)tst-piemod1.so
$(LINK.o) -pie -Wl,-O1 \
$(sysdep-LDFLAGS) $(config-LDFLAGS) \
$(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
$(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
$(LDFLAGS) $(LDFLAGS-$(@F)) \
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
-o $@ $(objpfx)tst-pie1.o $(objpfx)tst-piemod1.so \
$(common-objpfx)libc_nonshared.a
$(+link-pie)
generated += tst-pie1 tst-pie1.out tst-pie1.o
endif

11
nscd/Makefile
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@ -1,5 +1,4 @@
# Copyright (C) 1998,2000,2002,2003,2004,2005,2006,2007,2008
# Free Software Foundation, Inc.
# Copyright (C) 1998,2000,2002-2009 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
@ -128,13 +127,7 @@ ifeq (yesyes,$(have-fpie)$(build-shared))
relro-LDFLAGS += -Wl,-z,now
$(objpfx)nscd: $(addprefix $(objpfx),$(nscd-modules:=.o))
$(LINK.o) -pie -Wl,-O1 $(nscd-cflags) \
$(sysdep-LDFLAGS) $(config-LDFLAGS) $(relro-LDFLAGS) \
$(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
$(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
$(LDFLAGS) $(LDFLAGS-$(@F)) \
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
-o $@ $^ $(LDLIBS-nscd) $(common-objpfx)libc_nonshared.a
$(+link-pie)
endif
# This makes sure -DNOT_IN_libc is passed for all these modules.