Alan,
The code for the 32-bit runtime on 64-bit kernel originated on a PPC64,
and may never nave been tested on x86-64. The patch makes sense, due to
the i386-vs-i686 naming mess. However, the patch is currently
incomplete since PPC64 and SPARC64 don't have any value for
CR_LIBARCH32. I think you want to change one line in your patch from
CR_LIBARCH=$CR_LIBARCH32
to
CR_LIBARCH=${CR_LIBARCH32:-$CR_ARCH32}
Which should be correct on all architectures but still require changing
the same 2 lines as your original patch.
-Paul
On 9/28/2010 7:26 AM, Alan Woodland wrote:
tags 597601 +patch
tags 597601 +pending
thanks
Hi,
I'm having some trouble getting x86 builds to work in an x86 chroot
hosted on a x86_64 machine. The fault seems to stem from the fact that
CR_LIBARCH is set to i686, not i386, which causes the building of the
library later on to search in libcr/arch/i686 for cr_atomic.h, which
doesn't exist.
The trivial fix of changing CR_ARCH32 = i686 to i386 in configure.ac
fixes the problem for x86 builds in the chroot, but breaks multiarch
support because when configure is called as sub-configure for the
32bit library it ends up with i386 as CR_ARCH, which causes the
"unsupported architecture" message to get displayed.
The minimally intrusive fix I've come up with is:
Index: blcr-0.8.2/configure.ac
===================================================================
--- blcr-0.8.2.orig/configure.ac 2010-09-28 14:58:10.000000000 +0100
+++ blcr-0.8.2/configure.ac 2010-09-28 15:13:29.000000000 +0100
@@ -215,6 +215,7 @@
;;
x86_64)
CR_ARCH32=i686
+ CR_LIBARCH32=i386
cr_wordsize=8
;;
ppc64|powerpc64)
@@ -683,7 +684,7 @@
CR_LIBARCH=$CR_ARCH
if test $ac_cv_sizeof_void_p != $cr_wordsize; then
if test $cr_wordsize = 8; then
- CR_LIBARCH=$CR_ARCH32
+ CR_LIBARCH=$CR_LIBARCH32
else
AC_MSG_ERROR([CC='$CC' yields sizeof(void *) =
$ac_cv_sizeof_void_p when expecting $cr_wordsize.$clue])
fi
Is this sane? It seems to work on my test systems, but that doesn't
prove anything.
Thanks,
Alan
--
Paul H. Hargrove [email protected]
Future Technologies Group
HPC Research Department Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory Fax: +1-510-486-6900
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