From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1Ft8XX-00084i-GM for user-mode-linux-devel@lists.sourceforge.net; Wed, 21 Jun 2006 12:39:03 -0700 Received: from 41-052.adsl.zetnet.co.uk ([194.247.41.52] helo=mail.esperi.org.uk ident=user67409) by mail.sourceforge.net with esmtp (Exim 4.44) id 1Ft8XS-000727-S6 for user-mode-linux-devel@lists.sourceforge.net; Wed, 21 Jun 2006 12:39:00 -0700 Received: from esperi.org.uk (nix@hades.wkstn.nix [192.168.14.18]) by mail.esperi.org.uk (8.12.11.20060614/8.12.11) with ESMTP id k5LJcpXd002069 for ; Wed, 21 Jun 2006 20:38:51 +0100 From: Nix Date: Wed, 21 Jun 2006 20:38:50 +0100 Message-ID: <87sllyl2np.fsf@hades.wkstn.nix> MIME-Version: 1.0 Subject: [uml-devel] problems compiling 2.6.17 against glibc 2.4 List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: user-mode-linux-devel@lists.sourceforge.net The problem is that arch/um/os-Linux/sys-i386/registers.c messes around inside a jmp_buf, and in glibc 2.4 the glibc maintainers have helpfully removed the definitions that let you poke around in there (they were only there for the sake of one macro, _JMPBUF_UNWINDS, which is no longer user-visible.) This vile patch lets me compile but is almost certainly not good enough: however, I don't know what *is* good enough: now that glibc is blocking us from the layout of the jmp_buf, what's to stop them from changing it? (Well, other than that it would break the ABI ;) ) A temporary hack to make it compile is --- linux-orig/arch/um/os-Linux/sys-i386/registers.c 2006-06-20 08:17:47.000000000 +0100 +++ linux/arch/um/os-Linux/sys-i386/registers.c 2006-06-21 07:54:52.000000000 +0100 @@ -130,6 +130,14 @@ HOST_FP_SIZE * sizeof(unsigned long)); } +# define JB_BX 0 +# define JB_SI 1 +# define JB_DI 2 +# define JB_BP 3 +# define JB_SP 4 +# define JB_PC 5 +# define JB_SIZE 24 + void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer) { struct __jmp_buf_tag *jmpbuf = buffer; but that's hardly acceptable in the long run. -- `NB: Anyone suggesting that we should say "Tibibytes" instead of Terabytes there will be hunted down and brutally slain. That is all.' --- Matthew Wilcox All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel