添加系统调用

添加系统调用 <1>vim /usr/src/linux26/include/asm-generic/unistd.h æ??åŠ ï?š#define __NR_mycopycall 243 <1*>vim /usr/src/linux26/arch/x86/include/asm/unistd_32.h æ??åŠ ï?š#define __NR_mycopycall 337 <2>vim /usr/src/linux26/include/linux/syscalls.h æ??åŠ ï?šasmlinkage long sys_mycopycall(char *src,char *des); <2>vim /usr/src/linux26/arch/x86/kernel/syscall_table_32.S æ??åŠ ï?š.long sys_mycopycall <3>vim /usr/src/linux26/Makefile Add mycall/ to core-y(Search for regex:core-y.*+=).You will be creating this directory.This direstory will contain the source file,header file and Makefile for our system call. <4>root@ubuntu:/usr/src/linux26# mkdir mycall <5>vim /usr/src/linux26/mycopycall/mycopycall.c æ??åŠ æº•ç •ï?šasmlinkage long sys_mycopycall(long number) { return number; } <6>vim /usr/src/linux26/mycopycall/Makefile <7>make mrproper <8>make menuconfig <9>make <10>make modules_install <11>æ‹?è?•æ–?的内æ ?åˆ?/bootç›?å?•ä?‹ <12>ä??æ”?/host/ubuntu/install/boot/grub/grub.cfgæ–‡ä?? vim /usr/src/linux/kernel/sys.c æ??åŠ ï?šasmlinkage long sys_mycopycall(int number) { return number; } ç?–è?‘ï?Œå??å??ç”?æ–?的内æ ? 测è?•ä??ç •å?‚ä?‹ï?š /home/pb/code/testmycall.c other: mkinitramfs