__NR_getpid 24 arch/x86/include/generated/uapi/asm/unistd_32.h #define __NR_getpid 20 __NR_getpid 43 arch/x86/include/generated/uapi/asm/unistd_64.h #define __NR_getpid 39 __NR_getpid 38 arch/x86/include/generated/uapi/asm/unistd_x32.h #define __NR_getpid (__X32_SYSCALL_BIT + 39)