malloc/free and priority inheritance?

Carlos O'Donell carlos@redhat.com
Thu Apr 4 14:54:00 GMT 2013


On 04/04/2013 09:37 AM, Siddhesh Poyarekar wrote:
> On 4 April 2013 19:00, Stanislav Meduna <stano@meduna.org> wrote:
> 
>> hm well.. the assembler version of e.g. __pthread_cond_broadcast
>> in 2.17 for x86 seems to be using the PI. No luck with ARM (2.16
>> in ports) though.
> 
> The generic C code was updated to use PI in current master (I don't
> remember if the arm support bits were added, but they must have been
> by now), so you could cherry-pick and backport those bits for your
> distro if you want.

... and ARM uses the generic C code.

My comments in BZ#12114 still remain. Why can't we make malloc/free
use PI locks? We need not convert lll_lock, but just make malloc-machine.h
use a PI-aware lock?

Cheers,
Carlos.

[1] http://sourceware.org/bugzilla/show_bug.cgi?id=12114



More information about the Libc-help mailing list