On 06/06/2012 02:28 PM, Philippe Gerum wrote:
> On 06/06/2012 11:48 AM, Philippe Gerum wrote:
>> On 06/06/2012 11:18 AM, ali hagigat wrote:
>>> Much appreciate for the reply, Mr. Gerum. Here is the result of ldd
>>> command:
>>>
>>
>> http://www.xenomai.org/pipermail/xenomai-help/2011-12/msg00012.html
>
> Alternatively, this patch may work as well (not tested, but this
> looks like a former issue we had with aggressive optimizers):
>
> diff --git a/src/skins/posix/init.c b/src/skins/posix/init.c
> index 7a338a0..9c7849e 100644
> --- a/src/skins/posix/init.c
> +++ b/src/skins/posix/init.c
> @@ -43,6 +43,7 @@ void pse51_clock_init(int);
> static __attribute__ ((constructor))
> void __init_posix_interface(void)
> {
> + volatile pthread_t tid = pthread_self();
> #ifndef CONFIG_XENO_LIBS_DLOPEN
> struct sched_param parm;
> int policy;
> @@ -80,14 +81,14 @@ void __init_posix_interface(void)
>
> /* Don't use auto-shadowing if we are likely invoked from dlopen. */
> #ifndef CONFIG_XENO_LIBS_DLOPEN
> - err = __real_pthread_getschedparam(pthread_self(), &policy, &parm);
> + err = __real_pthread_getschedparam(tid, &policy, &parm);
> if (err) {
> fprintf(stderr, "Xenomai Posix skin init: "
> "pthread_getschedparam: %s\n", strerror(err));
> exit(EXIT_FAILURE);
> }
>
> - err = __wrap_pthread_setschedparam(pthread_self(), policy, &parm);
> + err = __wrap_pthread_setschedparam(tid, policy, &parm);
> if (err) {
> fprintf(stderr, "Xenomai Posix skin init: "
> "pthread_setschedparam: %s\n", strerror(err));
There should not be any issue here, as the pthread_self() is passed as
an argument to the called functions, the syscall is not inlined directly.
--
Gilles.
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