From: Andy Lutomirski Date: Wed, 13 Jul 2011 13:24:12 +0000 (-0400) Subject: x86-64: Add --no-undefined to vDSO build X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7f79ad15f33cf4968cafb0e3d2beba427de01d3a;p=openwrt%2Fstaging%2Fblogic.git x86-64: Add --no-undefined to vDSO build This gives much nicer diagnostics when something goes wrong. It's supported at least as far back as binutils 2.15. Signed-off-by: Andy Lutomirski Link: http://lkml.kernel.org/r/de0b50920469ff6359c529526e7639fdd36fa83c.1310563276.git.luto@mit.edu Signed-off-by: H. Peter Anvin --- diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile index bef0bc962400..5d179502a52c 100644 --- a/arch/x86/vdso/Makefile +++ b/arch/x86/vdso/Makefile @@ -26,6 +26,7 @@ targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y) export CPPFLAGS_vdso.lds += -P -C VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \ + -Wl,--no-undefined \ -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so