{ if (count <= 0) { fprintf(stderr, "Error: Invalid number of arguments.\n"); return; } va_list args; va_start(args, count); for (int i = 0; i < count; i++) { int value = va_arg(args, int); printf("%d ", value);
内核层面的 vm_area_struct( vma )对应于 Java 层面的 MappedByteBuffer,内核层面的 file 对应于 Java 层面的 FileChannel。 struct file 结构是内核用来描述被进程打开的磁盘文件的,它和进程是强相关的( fd 的作用域也是和进程相关的),即使多个进程打开同一个文件,那么内核会为每一个进程创建一个 struct file ...
Prints some information about the file being viewed, including its name and the line number and byte offset of the bottom line being displayed. If possible, it also prints the length of the file, the number of lines in the file and the percent of the file above the last displayed line. ...
Functions that take a variable number of arguments continue to be passed all of their arguments on the stack. 需要特别指出的是,该函数属性只在 x86 架构下有效。 在x86-64 架构下,由于使用寄存器来传递参数,所以 asmlinkage 没有实际意义: // file: include/linux/linkage.h #define asmlinkage CPP_...
如果遇到类似错误:"error creating aufs mount to ... invalid arguments", 那意味着当前配置的 docker 存储驱动不被支持,可以从 Storage Driver 选配一个,例如: $ sudo vim /etc/docker/daemon.json { "registry-mirrors": ["https://docker.mirrors.ustc.edu.cn"], "storage-driver": "devicemapper" } ...
<*> RAM block devicesupport(1)Default number of RAMdisks(131072)Default RAM disksize(kbytes) 配置完成,会在.config生成如下配置: CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=1 CONFIG_BLK_DEV_RAM_SIZE=131072 同时为了让内核有能力在内核加载阶段就能装入ramdisk,并运行其中的内容,要选中: ...
and /rd,/rd, #~((1 << 13) - 1) // top of 8Kstack .endm /* * These are the registers used in the syscallhandler, and allow us to * have in theory up to 7 arguments to afunction - x0 to x6. * * x7 is reserved for the system call number in32-bit mode. ...
// file: lib/sort.c/*** sort - sort an array of elements* @base: pointer to data to sort* @num: number of elements* @size: size of each element* @cmp_func: pointer to comparison function* @swap_func: pointer to swap function or NULL** This function does a heapsort on the giv...
The default extra features of multipath devices, using the format: "number_of_features_plus_arguments feature1 ...". Possible values for features include: queue_if_no_path, which is the same as setting no_path_retry to queue. For information on issues that may arise when us...
Without arguments, `alias' prints the list of aliases in the reusable form `alias NAME=VALUE' on standard output. Otherwise, an alias is defined for each NAME whose VALUE is given. A trailing space in VALUE causes the next word to be checked for ...