the 2nd link should be:
http://webcvs.freedesktop.org/xorg/xc/programs/Xserver/hw/xfree86/DebuggingHints?view=co
you might find this part useful:
....
5. Without module support gdb is not able to print the function where
an error occurred in a module.
If you get a line like:
(gdb) bt
#0 0x823b4f5 in ?? ()
....
You may obtain the function the address belongs to by calling
LoaderPrintSymbol():
(gdb) call LoaderPrintSymbol(0x823b4f5)
The symbol returned might not always be the name of the function
which contains the address. In case of static functions the symbol
is not known to the loader. However LoaderPrintSymbol() will print
the nearest known function and the offset from its start. You may
easily find the exact location of the address if you do:
# objdump --disassemble <file>.o
<file>.o is the name of the object file containing the symbol printed.
...
On Wed, Mar 3, 2010 at 7:03 AM, Pat Kane <[email protected]> wrote:
> Dave,
>
> For X server gdb help take a look at:
> http://www.x.org/wiki/Development/Documentation/ServerDebugging
> http://webcvs.freedesktop.org/xorg/xc/programs/Xserver/hw/xfree86/DebuggingHints
> the second is a bit out of date but still useful.
>
> Pat
> ---
>
> On Wed, Mar 3, 2010 at 12:24 AM, David Mohr <[email protected]> wrote:
> ...
>> I don't have much experience with how gdb behaves if there are no
>> debugging symbols available in _part_ of the program. Could it be that
>> I can inspect the X server by setting a breakpoint somewhere and then
>> continuing?
>> If so, what would be a good place to put a breakpoint (I have no clue
>> about X internals)?
> ...
>
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