Central | spec/rtems: fix clobbered local in task restart validation (!13)

Sebastian Huber (@sebhub) gitlab at rtems.org
Mon Oct 13 07:48:07 UTC 2025




Sebastian Huber started a new discussion on spec/rtems/task/req/restart.yml: https://gitlab.rtems.org/rtems/prequal/rtems-central/-/merge_requests/13#note_134885

 >        if ( ctx->interrupt || ctx->nested_request ) {
 >          if ( ctx->blocked ) {
 >            SetFatalHandler( ResumeThreadDispatch, ctx );
 > -          cpu_self = _Thread_Dispatch_disable();
 > +          (void) _Thread_Dispatch_disable();
 >  
 >            if ( setjmp( ctx->thread_dispatch_context ) == 0 ) {

I reviewed the complete function. From my point of view this warning is a false positive. From searching the internet, it seems the `-Wclobbered` warning is prone to produce false positives. The `ctx` is also a non-volatile local variable. It is just a matter of time before it produces a warning as well. I need more time to review this. Some suggest to move the setjmp() call to a separate function without local variables.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/prequal/rtems-central/-/merge_requests/13#note_134885
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