Error while mapping shared library sections

Error while mapping shared library sections

[johnmb]

I am debugging remotely and found that the performance of the link was quite
insufficient to use KDevelop - not unreasonable. So I am going back to using
GDB directly; this works when debugging locally but I am having problems
trying to debug remotely.

To start my debug session I first run a script containing the following :-

ruser=root@192.168.0.20
ssh ${ruser} 'gdbserver :2001 /home/programs/track'

This gives the expected listening on port 2001 message.  then I type the
following in another terminal window:-

gdb track --command debug/fsf_gdb_remote

The script fsf_gdb_remote contains the following:- 

set args -s 3 -i 1 -w /home/john/programs/
target remote 192.168.0.20:2001

Here is the following conversation in gdb:-

(gdb) b main
Breakpoint 1 at 0x804febd: file /home/john/kas_master/trunk/src/main.cc,
line 117.
(gdb) c
Continuing.
Error while mapping shared library sections:
/lib/libfsfutils.so: No such file or directory.
Error while mapping shared library sections:
/lib/libstdc++.so.6: No such file or directory.
Error while mapping shared library sections:
/lib/tls/libm.so.6: No such file or directory.
Error while mapping shared library sections:
/lib/tls/libc.so.6: No such file or directory.
Error while mapping shared library sections:
/lib/tls/libdl.so.2: No such file or directory.
Error while mapping shared library sections:
/lib/libz.so.1: No such file or directory.
Error while mapping shared library sections:
/lib/libgmodule-2.0.so.0: No such file or directory.
Error while mapping shared library sections:
/lib/libpcre.so.3: No such file or directory.

Breakpoint 1, main (argc=1, argv=0xbfbd2994) at
/home/john/kas_master/trunk/src/main.cc:117
117         int la=-1;  //  Language
(gdb)  


All the libraries are at the locations in the remote target as given in the
error messages so I don't
understand why this is happening.  I did read in several google located
accounts that this is fixed by
upgrading gdb to version 6.1; however I am using version 6.8 so it can't be
that.

Any ideas would be most gratefully accepted.



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Re: Error while mapping shared library sections

[Joel Brobecker]

> All the libraries are at the locations in the remote target as given
> in the error messages so I don't understand why this is happening.  I
> did read in several google located accounts that this is fixed by
> upgrading gdb to version 6.1; however I am using version 6.8 so it
> can't be that.

All the libraries should be available on the host as well, so that GDB
can read the symbols from them.

Exerpt from the GDB Manual:

    20.3.2 Connecting to gdbserver
    
    Run gdb on the host system.
    
    First make sure you have the necessary symbol files. Load symbols
    for your application using the file command before you connect. Use
    set sysroot to locate target libraries (unless your gdb was compiled
    with the correct sysroot using --with-sysroot). 

-- 
Joel

Re: Error while mapping shared library sections

[Pedro Alves]

On Thursday 27 October 2011 16:23:56, johnmb wrote:

> All the libraries are at the locations in the remote target as given in the
> error messages so I don't
> understand why this is happening.  

Those files don't exist on the _host_ (where gdb is running).

> Any ideas would be most gratefully accepted.

You need a copy of the target's shared libraries on the host,
and point GDB at them.  See "set sysroot" in the manual.

-- 
Pedro Alves

Error while mapping shared library sections

[spas]

Hi all,

    I am doing remote debugging.  host=intel  target = powerpc 
I am facing an error which is given below:

#warning: .dynamic section for "/lib/libc.so.6" is not at the expected
address (wrong library or version #mismatch?)
#Error while mapping shared library sections:
#/lib/ld.so.1: No such file or directory.

on continuning further
#Program exited with code 03.

 please get me an way to overcome this error
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Re: Error while mapping shared library sections

[Daniel Jacobowitz]

On Mon, Apr 14, 2008 at 11:54:20PM -0700, spas wrote:
> 
> Hi all,
> 
>     I am doing remote debugging.  host=intel  target = powerpc 
> I am facing an error which is given below:
> 
> #warning: .dynamic section for "/lib/libc.so.6" is not at the expected
> address (wrong library or version #mismatch?)

Please read the manual section on "set sysroot".

-- 
Daniel Jacobowitz
CodeSourcery