__NR_64_Linux 23 arch/mips/include/asm/unistd.h #define NR_syscalls (__NR_64_Linux + __NR_64_Linux_syscalls) __NR_64_Linux 407 arch/mips/kernel/ftrace.c if (nr >= __NR_64_Linux && nr < __NR_64_Linux + __NR_64_Linux_syscalls) __NR_64_Linux 408 arch/mips/kernel/ftrace.c return (unsigned long)sys_call_table[nr - __NR_64_Linux];