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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-09-16 10:34:12 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-09-17 17:42:25 +0200 |
| commit | dce1cdf19e6d8d7c5f72163401171648093d27bb (patch) | |
| tree | 250b04f5134b91b1e260bbe0bc72c55a004e6a68 /cpukit | |
| parent | rtems: Add RTEMS_ALIGN_DOWN() (diff) | |
| download | rtems-dce1cdf19e6d8d7c5f72163401171648093d27bb.tar.bz2 | |
rtems: Add RTEMS_ALIGN_UP()
Update #3959.
Update #4074.
Diffstat (limited to 'cpukit')
| -rw-r--r-- | cpukit/include/rtems/score/basedefs.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/cpukit/include/rtems/score/basedefs.h b/cpukit/include/rtems/score/basedefs.h index 4d16c88b49..c31b4ebef7 100644 --- a/cpukit/include/rtems/score/basedefs.h +++ b/cpukit/include/rtems/score/basedefs.h @@ -235,6 +235,21 @@ ( ( _value ) & ~( ( _alignment ) - 1 ) ) /** + * @brief Returns the specified value aligned up to the specified alignment. + * + * @param _value is the value to align up. + * + * @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 up to the specified alignment is + * returned. + */ +#define RTEMS_ALIGN_UP( _value, _alignment ) \ + ( ( ( _value ) + ( _alignment ) - 1 ) & ~( ( _alignment ) - 1 ) ) + +/** * @brief Instructs the compiler to enforce the specified alignment. */ #if defined(__GNUC__) |