Jiangbo wrote: >Hi, all, > > Would you please have a look to the following code for me? This code has no compile error, but it will get an error message "unresolved symbol sys_semctl". I don't know why. > > >/* gcc -c -Wall test.c*/ > > >#define __KERNEL__ > #define MODULE > > #include <linux/module.h> > #include <linux/kernel.h> > >#include <linux/string.h> >#include <linux/types.h> >#include <linux/ipc.h> >#include <linux/sem.h> >#include <linux/slab.h> /*kmalloc(), kfree()*/ >#include <linux/stat.h> > >#include <asm/types.h> >#include <asm/ipc.h> >#include <asm/uaccess.h> >#include <asm/semaphore.h> > What was the comman that caused the problem? John posted results, but needed to add a -I to get the correct headers. The commented line above is not enough either. this worked fine though: gcc -Wall -c -I /lib/modules/`uname -r`/build/include test.c if you don't want the current kernel, use the correct kernel tree instead like: -I/usr/src/linux-2.4.20/include -Thomas _______________________________________________ Redhat-devel-list mailing list Redhat-devel-list@redhat.com https://listman.redhat.com/mailman/listinfo/redhat-devel-list
