RTEMS | Draft: libmisc/stackchk: Add stack smashing protection (!277)

[Mohamed Hassan (@Hamzi)]

Mohamed Hassan commented on a discussion on cpukit/libmisc/stackchk/check.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/277#note_115680

 >    RTEMS_SYSINIT_ISR_STACK,
 >    RTEMS_SYSINIT_ORDER_MIDDLE
 >  );
 > +
 > +/*
 > + * This is the default implementation. The user can override it 
 > + * at the application 
 > + */
 > +__attribute__((weak,noreturn)) void __stack_chk_fail(void)

@gedare I spent some time trying to figure this out. But I really didn't know how to enable the `stack protector` without explicitly adding `-fstack-protector-all` in my testcase `stackchk05.yml`.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/277#note_115680
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