Update #3959. Update #4074. --- cpukit/include/rtems/score/basedefs.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/cpukit/include/rtems/score/basedefs.h b/cpukit/include/rtems/score/basedefs.h index 5a7e4e4f31..4d16c88b49 100644 --- a/cpukit/include/rtems/score/basedefs.h +++ b/cpukit/include/rtems/score/basedefs.h @@ -219,6 +219,21 @@ #define RTEMS_WEAK_ALIAS( _target ) #endif +/** + * @brief Returns the specified value aligned down to the specified alignment. + * + * @param _value is the value to align down. + * + * @param _alignment is the desired alignment in bytes. The alignment shall be + * a power of two, otherwise the returned value is undefined. The alignment + * parameter is evaluated twice. + * + * @return The specified value aligned down to the specified alignment is + * returned. + */ +#define RTEMS_ALIGN_DOWN( _value, _alignment ) \ + ( ( _value ) & ~( ( _alignment ) - 1 ) ) + /** * @brief Instructs the compiler to enforce the specified alignment. */ -- 2.26.2 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
