Re: shared objects and device drivers ...

["Vishal Khanna" <vishal@xxxxxxxxxxxxxxxxxxx>]

Try using man gdb, if that is also not installed, there is a PS version of
the manual on the net, check out the  www.gnu.org for the same.

>
>I use RH kernel 2.0.30, on a 486DX4 m/c, 8 Mb ram + 16 Mb cache. I have a
>couple of problems.
>
>*****************
>I tried to create a Java stub, and to use a Linux shared object to access a
>few functions. Leaving the Java part apart, the file containing the
>functions is say foo.c, a specific function being foo(), which I compiled
>using -shared flag, and moved the file to foo.so. Linux does support .so
>files on my m/c. The function is called from say caller.c where I have
>opened it with dlopen(), used this handle in dlsym() to get the address of
>foo(). I have checked for errors at every step. The program then compiles
>and links correctly(with -Wall no warnings). But when I execute this, I
have
>a runaway program. Can I use gdb to track the error ? If yes, how do I use
>gdb. I mean I gave,
>
>list<CR>
>break at <line_num><CR> but it gives error.
>
>Must be my syntax. Any reference URLs ?
>******************
>My monitor is a low end SVGA with 512 Kb. In Micro$oft Windoze with
>RTVGA???.drv files I got 256 colors. In linux X I only
>get 16 colors. If I change the card setting to anything other than generic
>VGA, the monitor goes haywire. I don't have exact
>specs for the card, as I had assembled the m/c, that too four years back.
>How can I make a device driver for the same ? Any
>hints. I tried various sites having 'khg' but cannot get the example files
>in any of them. Any help where I could get them, and
>probably having least traffic ;-)
>******************
>
>Thanks in advance for your help.
>
>Suvendra
>
>
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