It's been a while since I've done this so it's possible I'm doing something silly, but I've been Googling for hours and haven't yet found a solution.
The target system is an x86 PC104 running a stripped-down RedHat. Here's what I get for version info on the PC104...
bash-2.05# uname -a Linux localhost 2.4.18 #1 Wed Jun 19 14:33:06 MDT 2002 i486 unknown
The development machine is running Debian Etch. I downloaded the
2.4.18 linux kernel sources to the development computer and extracted them in /usr/src/. Then I threw together the following bare-bones kernel module called mymodule.c...
----------------------------------------------------------------------------------------------------- #ifndef __KERNEL__ #define __KERNEL__ #define MODULE #include #include
int init_module(void) { printk("Hello, World\n"); return 0; }
void cleanup_module(void) { printk("Goodbye!\n"); }
#endif
-----------------------------------------------------------------------------------------------------
This code compiles without complaint using the following command...
gcc -Wall -O2 -D__KERNEL__ -DMODULE -I/usr/src/linux/include -c mymodule.c
...but when I try to load this on the target system, I get this...
bash-2.05# /sbin/insmod mymodule.o mymodule.o: couldn't find the kernel version the module was compiled for bash-2.05# /sbin/insmod -f mymodule.o mymodule.o: couldn't find the kernel version the module was compiled for
Can anyone tell me what I'm doing wrong? Thanks in advance...