Various problems with gdb

Various problems with gdb

[Rob Shewan]

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Help!

I have googled this and searched the linux distribution (fedora) mailing 
list archives. I've checked bugzilla for fedora and gdb.

I am attempting to debug a large (1.2GB) mutithreaded C++ application on 
Fedora Core 2.

The original version of gdb was: GNU gdb Red Hat Linux 
(6.0post-0.20040223.19rh).
The current version of gdb is: GNU gdb Red Hat Linux 
(6.1post-1.20040607.8rh).

gdb is unable to set breakpoints in class methods contained in shared 
libraries. An error similar to "Cannot access memory at address 0x1b3ba" 
is displayed by gdb. I have seen this question asked but never answered. 
Browsing the sources it looks like memory_error() is being called by 
write_memory() that has called target_write_memory(). It returns EIO. Is 
there a way to alter permissions on the memory segment? Is the loader 
screwing up? Have I screwed up?

Additionally gdb doesn't handle the symbol table well using a C++ 
namespace symbol in place of something more reasonable.

Any reasonable suggestions would be greatly appreciated? If this 
warrants a bug report I will be happy to submit one, I would just like 
to make sure I'm not doing something silly first.

Please cc me, I am not subscribed to this list.

Rob Shewan



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