[OE-core] X server failing on PowerPC
Gary Thomas
gary at mlbassoc.com
Wed May 16 11:50:35 UTC 2012
When built from a recent OE-core using GCC 4.7.x, the X server
fails on PowerPC targets. Filed as Poky/Yocto bug #2460, it boils down
to a sequence of code like this:
void *ptr;
switch(XX) {
case a:
define_some_structure A;
ptr = &A;
break;
case b:
define_some_structure B;
ptr = &B;
break;
}
call_some_function(ptr);
I didn't explore how this messes up, just that it does when compiled
on PowerPC with GCC 4.7.x. Note that it works fine on ARM (and I assume
x86 as well)
Is this even legal C? even if it works [has worked] for 20+ years?
Should I propose my patch? I'm only interested in xserver-kdrive_1.7.99.2,
but I think this probably affects all X server instances.
--
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Gary Thomas | Consulting for the
MLB Associates | Embedded world
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