Messages in this thread | | | Date | Wed, 25 Oct 2006 01:00:55 +0400 | From | Mitch <> | Subject | Re: More uml build failures on 2.16.19-rc3 and 2.6.18.1 |
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I've definetly not done any such change on my machine. Remember with the same compile, same environment, if i go back to 2.6.18 i can build uml fine. If i move to 2.6.18.1 or above it breaks...
I do notice my gcc stddef does have this defined
% grep offsetof /usr/lib/gcc/i686-linux/4.0.3/include/stddef.h #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
And i notice my compiler has it inbuilt, so maybe this is a gcc 4.0.3 issue ?
% strings /usr/libexec/gcc/i686-linux/4.0.3/cc1|grep offsetof offsetof_member_designator __builtin_offsetof fold_offsetof_1 -Winvalid-offsetof Warn about invalid uses of the "offsetof" macro
-------- Original Message -------- Subject: Re: More uml build failures on 2.16.19-rc3 and 2.6.18.1 Date: Tue, 24 Oct 2006 09:20:25 -0400 From: Jeff Dike <jdike@addtoit.com> To: Mitch <Mitch@0Bits.COM> CC: linux-kernel@vger.kernel.org References: <453DC147.2020508@0Bits.COM>
On Tue, Oct 24, 2006 at 11:31:19AM +0400, Mitch wrote: > I'm still having build failures on 2.6.18.1 and even the latest -rc3 > > home /usr/src/sources/kernel/linux-2.6.18% !ma > make ARCH=um > SYMLINK arch/um/include/kern_constants.h > CC arch/um/sys-i386/user-offsets.s > arch/um/sys-i386/user-offsets.c: In function 'foo': > arch/um/sys-i386/user-offsets.c:19: warning: implicit declaration of > function 'offsetof'
The last time I saw this, someone had replaced the glibc kernel headers with a link to include/ within a kernel pool. There, offsetof is wrapped in #ifdef __KERNEL__, and inaccessible to userspace.
The glibc headers have a usable offsetof, so fix that, and UML should build.
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