[OE-core] [PATCH] pango: use qemu to generate pango.modules during rootfs construction
Phil Blundell
philb at gnu.org
Sun Sep 11 21:33:20 UTC 2011
On Sat, 2011-09-10 at 10:28 +0100, Phil Blundell wrote:
> The other odd thing is that, from a quick look at the qemu source code,
> it does seem as though sys_futex (which is syscall 240 on i386 and
> syscall 202 on x86-64) ought to be supported if qemu was built with NPTL
> on. However, in my x86-64 test I did see the "unsupported syscall 202"
> syscall although the binary still seemed to run fine.
This part turns out not (quite) to be so mysterious. For some reason,
qemu's configure script doesn't set target_nptl=yes for i386 or x86-64,
though it does for the majority of other arches. So it will indeed be
the case that sys_futex will show up as an "unsupported syscall" on
those two architectures.
I'm not quite sure why qemu would be deciding not to do futexes on those
two architectures specifically. I guess there must be some
functionality missing from the x86 emulation backend though I am not
sure exactly what that would be or how hard it would be to add.
p.
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