GitHub - xsphen/Linux-learning1

#include <signal.h> ###几种代码规范在代码的最开始定义 `

为了安全性，user-spase 不能直接调用kernel-spase， user-spase 只能给通知kerenl来让kernel来为自己执行内核提供的功能，
liunx 通过 int 80 cpu 指令来陷入内核，所有的系统调用都通过一个数字来表示，通过eax,制定调用参数通过ebx,ecx,edx,esi,edi,来传递前5的参数，如果还有通过stack传递

marco.c

宏的作用域

Name		Name	Last commit message	Last commit date
Latest commit History 148 Commits
ELF-file-node		ELF-file-node
autotools		autotools
color		color
coroutine		coroutine
curl		curl
daemon		daemon
dirty		dirty
epoll		epoll
fifo		fifo
gcc-features-node		gcc-features-node
io-system		io-system
kernel		kernel
make		make
md5		md5
memory		memory
mpi		mpi
mysql		mysql
open-tools		open-tools
process		process
pthread		pthread
serial-port		serial-port
shared-lib		shared-lib
signals		signals
socket		socket
ssl		ssl
stdlib		stdlib
syslog		syslog
time		time
vm		vm
xdr		xdr
zhao-utility		zhao-utility
.gitignore		.gitignore
README.md		README.md
atoi_t.c		atoi_t.c
backtrace.c		backtrace.c
base64.c		base64.c
binutils.md		binutils.md
dbm1.c		dbm1.c
device.c		device.c
enverment.c		enverment.c
errno_t.c		errno_t.c
exec_calls.c		exec_calls.c
garbage_collect.c		garbage_collect.c
getopt.c		getopt.c
hash.c		hash.c
libevent.c		libevent.c
locale.txt		locale.txt
marco.c		marco.c
memroy.c		memroy.c
menu1.c		menu1.c
other.c		other.c
password.c		password.c
permstring.c		permstring.c
pkg-config.md		pkg-config.md
practice.c		practice.c
ranlib.Readme		ranlib.Readme
security_control.md		security_control.md
sem1.c		sem1.c
setjmp.c		setjmp.c
sysconf.c		sysconf.c
tt.c		tt.c
va.c		va.c