Koichi Kawabata <kkoichi@lepoche.com> writes: > Hi: > > I'm not the original poster, but I come to have the similar question > as he may have. > > Ed L Cashin <ecashin@uga.edu> wrote on Sun, 14 Dec 2003 19:41:13 -0500 >> > Shinpei Kato <shinny@j02.itscom.net> writes: >> > So I want to know how the fork() set the parameter. >> > And to confirm it, I want the source code of fork(). >> >> In glibc, see ./sysdeps/unix/sysv/linux/i386/clone.S, where the Check out that file if you haven't already. It seems to have what you're looking for. >> registers are set up and the "int 0x80" instruction is used to trap >> into the O.S. system call handler. >> >> The clone system call is how forking is done nowadays. > > You mean to say "glibc implements fork() via clone()"? Not really. In fact, I was a little misleading. There are two different linux system calls: clone and fork. From glibc's perspective, it could call either one to do a fork. I don't know whether on i386 linux it uses one or both, but the file I mentioned above has code for using the clone system call. -- --Ed L Cashin | PGP public key: ecashin@uga.edu | http://noserose.net/e/pgp/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
