There isn’t necessarily A load address for an SBModule. After all, the different segments could load with different offsets. We usually list the offset of the __TEXT__ address as the load address - for instance in “image list", since if you are only interested in symbolication, that’s what you care about. But there isn’t just one load address.
Jim > On Feb 29, 2016, at 2:02 PM, Jeffrey Tan <jeffrey.fu...@gmail.com> wrote: > > Btw: I did not find an API to retrieve the load address of the SBModule? This > seems to be weird to me, did I miss anything? > > > On Mon, Feb 29, 2016 at 1:34 PM, Jeffrey Tan <jeffrey.fu...@gmail.com > <mailto:jeffrey.fu...@gmail.com>> wrote: > I see why I did not find them in the first place. These two APIs are not > listed in the official doc: > http://lldb.llvm.org/python_reference/index.html > <http://lldb.llvm.org/python_reference/index.html> > > Someone might want to add it. > > Thanks > Jeffrey > > On Mon, Feb 29, 2016 at 11:59 AM, Jeffrey Tan <jeffrey.fu...@gmail.com > <mailto:jeffrey.fu...@gmail.com>> wrote: > This is very useful, thanks for the info! > > On Mon, Feb 29, 2016 at 10:36 AM, Jim Ingham <jing...@apple.com > <mailto:jing...@apple.com>> wrote: > >> On Feb 27, 2016, at 8:34 PM, Jeffrey Tan via lldb-dev >> <lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org>> wrote: >> >> Hi, >> >> I am trying to listen for module/symbol load/unload events and display them >> in output UI so that debugger users can have a basic clue what is debugger >> busy doing while launching a big executable linking many shared libraries. >> >> Questions: >> 1. I did not find an API to get current load/unload module during module >> events. I was expecting some static API like lldb.SBModule(or >> SBTarget).GetModuleFromEvent(SBEvent), but this does not exists. I tried to >> treat current PC's module as loading module in module load/unload events. >> But that does not work too(I think because process is not stopped in module >> load/unload events). Do I miss something here? > > From SBTarget.h: > > static uint32_t > GetNumModulesFromEvent (const lldb::SBEvent &event); > > static lldb::SBModule > GetModuleAtIndexFromEvent (const uint32_t idx, const lldb::SBEvent > &event); > > Note, you can also cause the process to stop with modules are loaded with the > setting: > > target.process.stop-on-sharedlibrary-events > > if that is more convenient for you. > >> >> 2. Even though "image list" shows I have around 42 modules loaded in >> process, I only got two module load events. Why is that? > > On OS X the loader loads the closure of modules for whatever it is loading, > and only stops and informs the debugger when this is all done. So it is > quite usual to see only a few load events even though many modules get loaded. > > >> >> 3. Even though I added lldb.SBTarget.eBroadcastBitSymbolsLoaded, there is no >> event of type eBroadcastBitSymbolsLoaded generated. Is it expected? >> Apparently I have the symbols next to the binary. > > That event gets sent when symbols are added to an already loaded module. It > is so a UI will know to refresh the backtrace, local variables, source view, > etc when code goes from having no symbols to having some symbols. Those > actions are not needed if the library & its symbols get loaded > simultaneously, so it isn’t sent in that case. > > Jim > > >> >> This is tested on mac OSX lldb. >> >> Jeffrey >> _______________________________________________ >> lldb-dev mailing list >> lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org> >> http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev >> <http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev> > > > >
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