Messages in this thread | | | From | Andy Lutomirski <> | Date | Wed, 2 Jul 2014 13:00:32 -0700 | Subject | Re: [BUILD BUG][3.16-rc3] Error: too many copied sections (max = 13) |
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On Mon, Jun 30, 2014 at 9:09 PM, Steven Rostedt <rostedt@goodmis.org> wrote: > Testing the latest kernel (3.16-rc3) I hit this build bug: > > VDSO2C arch/x86/vdso/vdso-image-64.c > Error: too many copied sections (max = 13) > /arch/x86/vdso/Makefile:61: recipe for target 'arch/x86/vdso/vdso-image-64.c' failed > make[3]: *** [arch/x86/vdso/vdso-image-64.c] Error 1 > /scripts/Makefile.build:404: recipe for target 'arch/x86/vdso' failed > make[2]: *** [arch/x86/vdso] Error 2 > > I bisected it down to this commit: > > commit 0e3727a8839c988a3c56170bc8da76d55a16acad > Author: Andy Lutomirski <luto@amacapital.net> > Date: Wed Jun 18 15:59:49 2014 -0700 > > x86/vdso: Remove some redundant in-memory section headers > > When I revert this commit, it compiles fine. > > I built my gcc and binutils from their sources unmodified: > > gcc 4.6.0 > > binutils 2.21
I managed to munge the binutils sources enough to build binutils 2.21. This seems to be a binutils bug: ld generates an empty .rela.dyn. Fortunately, it's not generating a DT_RELA dynamic entry.
I'm not quite sure what to do about this. I could discard it, but then I might want to make sure that, once I've discarded it, I don't put any other sections in, since I don't know how well gdb can handle section renumbering. Maybe there's nothing to worry about here.
Or I could admit defeat and put the vvar area before the vdso text.
--Andy
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