__ARCH_SI_PREAMBLE_SIZE   17 include/asm-generic/siginfo.h #define __ARCH_SI_PREAMBLE_SIZE	(3 * sizeof(int))
__ARCH_SI_PREAMBLE_SIZE    5 include/asm-x86/siginfo.h # define __ARCH_SI_PREAMBLE_SIZE	(4 * sizeof(int))