Wayne Thornton commented on a discussion on cpukit/score/cpu/x86_64/include/rtems/score/cpu.h: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1256#note_150896 > > typedef uintptr_t CPU_Uint32ptr; > > +/** > + * Pauses the CPU pipeline to prevent aggressive speculative execution > + * and reduce thermal load during spin-wait loops. > + */ > +static inline void _CPU_Spin_wait( void ) > +{ > + __asm__ volatile( "pause" ::: "memory" ); > +} > + > +/* Explicitly define the macro so the preprocessor can see it in DHRL API */ > +#define _CPU_Spin_wait _CPU_Spin_wait I would prefer to keep the `#define` as a way of providing a friendlier error message, as I have in the `dhrl.c` implementation. Example: ``` /* Enforce architectural hardware requirements at compile time */ #ifndef _CPU_Spin_wait #error "DHRL requires _CPU_Spin_wait() to be defined by the architecture." #endif ``` -- View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1256#note_150896 You're receiving this email because of your account on gitlab.rtems.org.
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