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Message-Id: <20091014090245.d04c8ab2.randy.dunlap@oracle.com> Date: Wed, 14 Oct 2009 09:02:45 -0700 From: Randy Dunlap <randy.dunlap@...cle.com> To: Arnaldo Carvalho de Melo <acme@...hat.com> Cc: Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org, mingo@...hat.com, hpa@...or.com, paulus@...ba.org, a.p.zijlstra@...llo.nl, efault@....de, fweisbec@...il.com, tglx@...utronix.de, linux-tip-commits@...r.kernel.org Subject: Re: [tip:perf/urgent] perf tools: Fix the NO_64BIT build on pure 64-bit systems On Wed, 14 Oct 2009 12:58:48 -0300 Arnaldo Carvalho de Melo wrote: > Em Wed, Oct 14, 2009 at 07:44:04AM -0700, Randy Dunlap escreveu: > > On Wed, 14 Oct 2009 08:20:52 +0200 Ingo Molnar wrote: > > > > > > > > * Randy Dunlap <randy.dunlap@...CLE.COM> wrote: > > > > > > > On Mon, 12 Oct 2009 08:34:16 GMT tip-bot for Ingo Molnar wrote: > > > > > > > > > Commit-ID: 55621ccf2b7a8afe39df8c80f55b28424fd07d13 > > > > > Gitweb: http://git.kernel.org/tip/55621ccf2b7a8afe39df8c80f55b28424fd07d13 > > > > > Author: Ingo Molnar <mingo@...e.hu> > > > > > AuthorDate: Mon, 12 Oct 2009 09:57:25 +0200 > > > > > Committer: Ingo Molnar <mingo@...e.hu> > > > > > CommitDate: Mon, 12 Oct 2009 10:00:27 +0200 > > > > > > > > > > perf tools: Fix the NO_64BIT build on pure 64-bit systems > > > > > > > > > > Randy Dunlap reported that 'make NO_64BIT=1' fails to build > > > > > a pure 32-b it binary on 64-bit/64-bit x86 systems. > > > > > > > > > > The reason is that we dont pass in the -m32 and GCC defaults > > > > > to -m64. > > > > > > > > > > So pass it in - and also extend the warning message about libelf > > > > > dependencies - glibc-dev[el] is needed as well beyond the libelf > > > > > library. > > > > > > > > Ingo, thanks, I finally got this working, after installing more 32-bit > > > > libs etc., like Kyle said that I would need to do. > > > > > > > > The error message is still a little misleading/confusing: > > > > Makefile:426: *** No libelf.h/libelf found, please install libelf-dev/elfutils-libelf-devel and glibc-dev[el]. Stop. > > > > > > > > when elfutils-libelf-devel.i586 is installed but glibc-devel.i[56]86 is not > > > > installed. gcc failed with: > > > > In file included from /usr/include/features.h:376, > > > > from /usr/include/sys/types.h:27, > > > > from /usr/include/libelf.h:53, > > > > from elfdeveltest.c:1: > > > > /usr/include/gnu/stubs.h:7:27: error: gnu/stubs-32.h: No such file or directory > > > > > > Why is it misleading? It says it very clearly that you need to install > > > both: > > > > > > please install libelf-dev/elfutils-libelf-devel and glibc-dev[el]. Stop. > > > > It also says very clearly: > > > > Makefile:426: *** No libelf.h/libelf found > > > > which is not correct. > > So the correct way is to first look for the presence of glibc-devel, > barf if its not present, then after that, do what is done now and test > for the presence of libelf.h :-\ > > But if one just follows the suggestion, and installs the suggested > packages, it should work, no? Yes, it's just the confusing message... --- ~Randy -- 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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