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
Someone might want to add it. Thanks Jeffrey On Mon, Feb 29, 2016 at 11:59 AM, Jeffrey Tan <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> wrote: > >> >> On Feb 27, 2016, at 8:34 PM, Jeffrey Tan via lldb-dev < >> 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 >> http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev >> >> >> >
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