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Date: Thu, 3 Jul 2014 08:51:15 -0700 From: Andy Lutomirski <luto@...capital.net> To: Jan Beulich <JBeulich@...e.com> Cc: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "H. Peter Anvin" <hpa@...or.com> Subject: Re: [PATCH] ix86: fix vDSO build On Thu, Jul 3, 2014 at 8:44 AM, Jan Beulich <JBeulich@...e.com> wrote: >>>> On 03.07.14 at 17:34, <luto@...capital.net> wrote: >> On Thu, Jul 3, 2014 at 7:35 AM, Jan Beulich <JBeulich@...e.com> wrote: >>> Relying on static functions used just once to get inlined (and >>> subsequently have dead code paths eliminated) is wrong: Compilers are >>> free to decide whether they do this, regardless of optimization level. >>> With this not happening for vdso_addr() (observed with gcc 4.1.x), an >>> unresolved reference to align_vdso_addr() causes the build to fail. >>> >>> Signed-off-by: Jan Beulich <jbeulich@...e.com> >>> Cc: Andy Lutomirski <luto@...capital.net> >> >> Acked-by: Andy Lutomirski <luto@...capital.net> > > Thanks (also for the other one). > >> Any chance you could send a dump of the symbol and relocation tables >> of a .so.dbg with this problem? I'm curious why checkundef.sh never >> caught it. > > vma.o is part of the kernel, not the .so. Duh :) --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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