__NR_mkdirat     1131 sandbox/linux/services/arm_linux_syscalls.h #define __NR_mkdirat (__NR_SYSCALL_BASE+323)
__NR_mkdirat     1182 sandbox/linux/services/x86_32_linux_syscalls.h #define __NR_mkdirat 296
__NR_mkdirat     1046 sandbox/linux/services/x86_64_linux_syscalls.h #define __NR_mkdirat 258