__NR_umask 134 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_umask, sys_umask) __NR_umask 504 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_umask, sys_umask) __NR_umask 1728 tools/include/nolibc/nolibc.h return my_syscall1(__NR_umask, mode); __NR_umask 504 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_umask, sys_umask)