gdb and shared libraries

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Article #1217

#1217

From: Doug Abbott
Date: Mon, 01 May 2006 04:09

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2504 bytes

Hi,

I know this problem has been alluded to in the past, but I haven't seen 
a workable solution to the exact problem I'm seeing.  I'm running gdb 
6.3 under Red Hat 9 on a PC accessing an ARM9 target board through 
gdbserver.  Oh, and by the way, I refuse to work at the command line 
level so I'm running DDD on top of gdb.

In trying to debug a simple "Hello World" program, which appears to run 
correctly on the target outside of gdb, here's what I get.  When I 
connect to the remote target via TCP, I get:

    0x40001470 in ?? ()

This in itself is suspicious.  I don't recall ever seeing anything like 
this before using other remote targets.  Then when I execute next, I get:

    Cannot access memory at address 0x0
    Cannot find bounds of current function

Hmmm, that last one leads me to believe gdb isn't finding the 
appropriate shared libraries.  I tried executing the command:

    set solib-search-path <arm_library_path>

before connecting to the target.  Didn't work.

And why on earth should gdb be trying to access memory at address 0?  
Any thoughts???

Thanks,

Doug

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From: Doug Abbott <doug@intellimetrix.us>
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Subject: gdb and shared libraries
Date: Sun, 30 Apr 2006 22:09:31 -0600
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