HelenOS sources
_padd 60 uspace/lib/c/include/macros.h #define PADD32(n) _padd(32, __LINE__, n)
_padd 61 uspace/lib/c/include/macros.h #define PADD16(n) _padd(16, __LINE__, n)
_padd 62 uspace/lib/c/include/macros.h #define PADD8(n) _padd(8, __LINE__, n)
_padd 60 uspace/lib/posix/include/libc/macros.h #define PADD32(n) _padd(32, __LINE__, n)
_padd 61 uspace/lib/posix/include/libc/macros.h #define PADD16(n) _padd(16, __LINE__, n)
_padd 62 uspace/lib/posix/include/libc/macros.h #define PADD8(n) _padd(8, __LINE__, n)
HelenOS homepage, sources at GitHub