sys_munmap        196 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_munmap, sys_munmap)
sys_munmap        823 include/linux/syscalls.h asmlinkage long sys_munmap(unsigned long addr, size_t len);
sys_munmap        627 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_munmap, sys_munmap)
sys_munmap        627 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_munmap, sys_munmap)