[lldb-dev] Loading debug symbols (C++, Ubuntu 14.04)
Stefan Kratochwil via lldb-dev
lldb-dev at lists.llvm.org
Sat May 7 11:45:01 PDT 2016
I need to gather information about variables on the stack frames of a
given program, lets say apache2 (httpd), using the C++ flavour of the
lldb scripting bridge.
Now, if I attach to the corresponding process id, lldb does not find any
debug symbols, although I have installed the debug symbols package for
If I use the lldb cli, I have to use
'target symbols load /usr/lib/debug/usr/sbin/apache2'
(or any other path under /usr/lib/debug, depending on the stack frame /
module I am currently looking at) to load the corresponding debug symbols.
However, if I try the same with gdb, then it automagically uses the
binaries under /usr/lib/debug (the non-stripped binaries from any *-dbg
package are located here) for symbolification.
Now, there are two questions for me:
1.: Is there a way to let lldb automagically load debug symbols from
/usr/lib/debug, if there are any?
2.: If not, how can I do this manually using the C++ API?
The SBTarget class does not have suitable methods for this - the closest
thing is SBTarget#AddModule(), but this gives me a _new_ module, instead
of associating a symbolfile with an existing one. The code path of
CommandObjectTarget.cpp#AddModuleSymbols() seems not to be reflected in
the scripting bridge, or at least I haven't found it yet.
I am not using the most recent lldb version - I am currently using svn
rev 247535, my operating system is a Ubuntu 14.04.
Any help on this is very appreciated!
Thank you very much, and best regards,
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