From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from web15601.mail.cnb.yahoo.com (web15601.mail.cnb.yahoo.com [202.165.102.55]) by ozlabs.org (Postfix) with SMTP id A826B67A3A for ; Fri, 23 Jun 2006 00:38:38 +1000 (EST) Message-ID: <20060622143156.39031.qmail@web15601.mail.cnb.yahoo.com> Date: Thu, 22 Jun 2006 22:31:56 +0800 (CST) From: Zhou Rui Subject: Problem for "insmod: unresolved symbol printk" To: linuxppc-dev@ozlabs.org MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-982979180-1150986716=:36987" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --0-982979180-1150986716=:36987 Content-Type: text/plain; charset=gb2312 Content-Transfer-Encoding: 8bit Hi, all I'm a newbie for linuxppc. I've tried to write a simple hello.c as a kernel module. /*hello.c*/ #ifndef MODULE #define MODULE #endif #ifndef __KERNEL__ #define __KERNEL__ #endif #include #include int init_module(void) { printk("Hello world 1.\n"); return 0; } void cleanup_module(void) { printk("Goodbye world 1.\n"); } I wrote the code on a machine with Slackware installed. There was a PowerPC405EP board connected to the machined with NFS used. On the PowerPC board, the kernel is linuxppc-2.4.25-rthal5 and can be logged in via telnet. On the machine, there was also a toolchain for PowerPC and there were a series of commands beginning with "powerpc-linux-" existing. I've tried to cross-compile the source file with "powerpc-linux-gcc -c hello.c" or "powerpc-linux-gcc -c -DMODVERSIONS -I/usr/src/linuxppc-2.4.25/include hello.c" for PowerPC. But when I telneted into the board and run "insmod hello.o" on the PowerPC board, there always was "insmod: unresolved symbol printk". So would anyone give me some advice about the problem? Thank you very much. --------------------------------- 雅虎免费邮箱-3.5G容量，20M附件 --0-982979180-1150986716=:36987 Content-Type: text/html; charset=gb2312 Content-Transfer-Encoding: 8bit Hi, all
    I'm a newbie for linuxppc. I've tried to write a simple hello.c as a kernel module.

/*hello.c*/
#ifndef MODULE
#define MODULE
#endif

#ifndef __KERNEL__
#define __KERNEL__
#endif

#include <linux/module.h>
#include <linux/kernel.h>

int init_module(void)
{
        printk("Hello world 1.\n");
        return 0;
}

void cleanup_module(void)
{
        printk("Goodbye world 1.\n");
}

I wrote the code on a machine with Slackware installed. There was a PowerPC405EP board connected to the machined with NFS used. On the PowerPC board, the kernel is linuxppc-2.4.25-rthal5 and can be logged in via telnet. On the machine, there was also a toolchain for PowerPC and there were a series of commands beginning with "powerpc-linux-" existing. I've tried to cross-compile the source file with "powerpc-linux-gcc -c hello.c" or "powerpc-linux-gcc -c -DMODVERSIONS -I/usr/src/linuxppc-2.4.25/include hello.c" for PowerPC. But when I telneted into the board and run "insmod hello.o" on the PowerPC board, there always was "insmod: unresolved symbol printk". So would anyone give me some advice about the problem? Thank you very much.

雅虎免费邮箱-3.5G容量，20M附件 --0-982979180-1150986716=:36987--