On Friday 10 January 2003 03:30, Jonathan Kallay wrote:
> Hi all,
> I'm trying to compile the kernel module for some NVidia drivers. I'm
> getting an error message saying that I'm compiling a module with a
> different version of the compiler than the one used to compile the kernel
> (gcc 2.95.4 is what's installed; the kernel version is 2.2.20 and at one
> point I was able to check the compiler version that compiled it but I can't
> remember how I did it). What's the best way to work around this problem?
This is a FAQ and is in the README you received with the driver/source.
Here is an excrpt;
Q: Compiling the NVdriver kernel module gives this error:
You appear to be compiling the NVdriver kernel module with
a compiler different from the one that was used to compile
the running kernel. This may be perfectly fine, but there
are cases where this can lead to unexpected behaviour and
system crashes.
If you know what you are doing and want to override this
check, you can do so by setting IGNORE_CC_MISMATCH.
In any other case, set the CC environment variable to the
name of the compiler that was used to compile the kernel.
A: You should compile the NVdriver kernel module with the same compiler
version that was used to compile your kernel. Some Linux kernel data
structures are dependent on the version of gcc used to compile it;
for example, in include/linux/spinlock.h:
...
* Most gcc versions have a nasty bug with empty initializers.
*/
#if (__GNUC__ > 2)
typedef struct { } rwlock_t;
#define RW_LOCK_UNLOCKED (rwlock_t) { }
#else
typedef struct { int gcc_is_buggy; } rwlock_t;
#define RW_LOCK_UNLOCKED (rwlock_t) { 0 }
#endif
If the kernel is compiled with gcc 2.x, but gcc 3.x is used when the
open files in NVdriver are built (or vice versa), the size of rwlock_t
will vary, and things like ioremap will fail.
To check what version of gcc was used to compile your kernel, you
can examine the output of:
cat /proc/version
To check what version of gcc is currently in your $PATH, you can
examine the output of:
gcc -v
--
Regards Richard
[EMAIL PROTECTED]
http://people.zeelandnet.nl/pa3gcu/
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