On Saturday 03 February 2007 06:36, Mohammad Jawwad wrote: > Hello, > > > > How does one add a system call to user mode linux? > > I followed the instructions here:= > > http://user-mode-linux.sourceforge.net/lksct/
It's from 2002, (I've seen this in the homepage), it's outdated. No information about kernel development lasts for so long. Those instructions could be meaningful for 2.4, and _maybe_ early 2.6 UML kernels (I didn't look at the details). Which UML version did you use? These days, to add a syscall to a 32bit UML you must patch x86 sources, and for a 64bit UML, the x86-64 sources. There will be more info on doing that in various websites.So look for info on doing that. Files to modify are, at least: For x86: include/asm-i386/unistd.h arch/i386/kernel/syscall_table.S For x86_64: include/asm-x86_64/unistd.h Those files are included/reused by UML - this was done to make it easier to keep syscall tables in sync. Also, syscall 253 is already assigned these days. > The program compiles but dosent print out the the output from the printk() > statement. > > Has anybody successfully installed a system call in uml? -- Inform me of my mistakes, so I can add them to my list! Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade Chiacchiera con i tuoi amici in tempo reale! http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
