RTEMS | cpukit/error: Make RTEMS_ERROR_* shifts 16-bit host clean (!1069)

SHIVAM DEOLANKAR (@D3athSkulll) gitlab at rtems.org
Sat Feb 21 21:56:36 UTC 2026




SHIVAM DEOLANKAR commented on a discussion on cpukit/include/rtems/error.h: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1069#note_143211

 > -#if 0
 > -/* not 16bit-int host clean */
 > -#define RTEMS_ERROR_ERRNO  (1<<((sizeof(rtems_error_code_t) * CHAR_BIT) - 2)) /* hi bit; use 'errno' */
 > -#define RTEMS_ERROR_PANIC  (RTEMS_ERROR_ERRNO / 2)       /* err fatal; no return */
 > -#define RTEMS_ERROR_ABORT  (RTEMS_ERROR_ERRNO / 4)       /* err is fatal; panic */
 > -#else
 > -#define RTEMS_ERROR_ERRNO  (0x40000000) /* hi bit; use 'errno' */
 > -#define RTEMS_ERROR_PANIC  (0x20000000) /* err fatal; no return */
 > -#define RTEMS_ERROR_ABORT  (0x10000000) /* err is fatal; panic */
 > -#endif
 > +/*
 > + * Define Error Flags
 > + */
 > +#define RTEMS_ERROR_BITS (sizeof(rtems_error_code_t) * CHAR_BIT)
 > +
 > +#define RTEMS_ERROR_ERRNO (((rtems_error_code_t)1) << (RTEMS_ERROR_BITS - 2))

Done

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1069#note_143211
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