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这是一本操作系统辅导教材的辅助资料

add new syscall : sys_getmm(pid_t pid,unsigned long *arr)
file need to be modified:
/kernel/sys.c
/include/asm/unistd.h
/arch/i386/kernel/entry.S

compile kernel:
make menuconfig
make dep
make bzImage
make modules
make module_install

compile test case:
gcc -I/usr/src/linux-2.4.7-10syscall/include -o syscall syscall.c


run example:
pid 1 memory map:
start_code:	8048000
end_code:	804de8f
start_data:	804eea0
end_data:	804f36c
start_brk:	804f554
brk:		8054000
start_stack:	bfffff40
arg_start:	bfffffda
arg_end:	bfffffdf
env_start:	bfffffdf
env_end:	bffffff1