From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from zrtps0kn.nortel.com (zrtps0kn.nortel.com [47.140.192.55]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (Client CN "zrtps0kn.nortel.com", Issuer "NORTEL" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 87C62DE055 for ; Sat, 10 May 2008 03:17:18 +1000 (EST) Message-ID: <482486F7.3090805@nortel.com> Date: Fri, 09 May 2008 11:16:39 -0600 From: "Chris Friesen" MIME-Version: 1.0 To: linuxppc-dev@ozlabs.org, roland@redhat.com, paulus@samba.org, benh@kernel.crashing.org Subject: patch to install unstripped vDSO on disk breaks powerpc kernel build Content-Type: text/plain; charset=ISO-8859-1; format=flowed List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I'm using gcc 3.4.3 and binutils 2.15.92.0.2. I originally saw the following problem in 2.6.25 but it's present in git head as well: CALL /home/cfriesen/kernels/2.6.25/linux-2.6.25/scripts/checksyscalls.sh CHK include/linux/compile.h CALL /home/cfriesen/kernels/2.6.25/linux-2.6.25/arch/powerpc/kernel/systbl_chk.sh AS arch/powerpc/kernel/systbl.o OBJCOPY arch/powerpc/kernel/vdso64/vdso64.so BFD: arch/powerpc/kernel/vdso64/vdso64.so: The first section in the PT_DYNAMIC segment is not the .dynamic section /home/cfriesen/bin/ppc64-R9a/bin/ppc64-R9a-objcopy: arch/powerpc/kernel/vdso64/vdso64.so: Bad value BFD: arch/powerpc/kernel/vdso64/vdso64.so: The first section in the PT_DYNAMIC segment is not the .dynamic section /home/cfriesen/bin/ppc64-R9a/bin/ppc64-R9a-objcopy: arch/powerpc/kernel/vdso64/vdso64.so: Bad value make[3]: *** [arch/powerpc/kernel/vdso64/vdso64.so] Error 1 make[2]: *** [arch/powerpc/kernel/vdso64] Error 2 make[1]: *** [arch/powerpc/kernel] Error 2 make: *** [sub-make] Error 2 I installed git and bisected the problem. It turns out that it's due to the following commit: commit 8150caad02266623b5b9f58088d589f130fccd97 Author: Roland McGrath Date: Tue Oct 2 13:30:04 2007 -0700 [POWERPC] powerpc vDSO: install unstripped copies on disk This keeps an unstripped copy of the vDSO images built before they are stripped and embedded in the kernel. The unstripped copies get installed in $(MODLIB)/vdso/ by "make install". These files can be useful when they contain source-level debugging information. Signed-off-by: Roland McGrath Cc: Sam Ravnborg Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras Anyone have any idea what's going on? Thanks, Chris