search

klonyyy / STMViewer

Real-time STM32 variable & trace viewer
GNU General Public License v3.0
556 stars 62 forks source link

Add drop-down-list to select a variable to watch #18

Closed wimalopaan closed 6 months ago

wimalopaan commented 10 months ago

One has to manually enter the full name (mangled) of a variable to watch. If one use C++ with templates this is tedious, because one has to look into the .elf-file to get the mangled names: e.g. _ZN4GFSMI7DevicesI10ESC_FOC_016ConfigN3Mcu3Stm9Stm32G431EEE10mDebugTickE is such a name in my case.

It would be beautiful to get a drop-down-list with the de-mangled names: e.g. GFSM<Devices<ESC_FOC_01, Config, Mcu::Stm::Stm32G431> >::mDebugTick

klonyyy commented 10 months ago

It should be possible to just use the object instance name, without specyfing template parameters - have you tried that? A simplified example that I could try would be helpful as well.

wimalopaan commented 10 months ago

In the above example GFSM<Devices<ESC_FOC_01, Config, Mcu::Stm::Stm32G431> > is the instantiated template and mDebug is a static member inside of that template-class. Do you mean, the name mDebug will suffice?

klonyyy commented 10 months ago

I mean if you have an object instance for example GFSM<Devices<ESC_FOC_01, Config, Mcu::Stm::Stm32G431> > test; you should be able to use test.mDebug.

wimalopaan commented 10 months ago

I mean if you have an object instance for example GFSM<Devices<ESC_FOC_01, Config, Mcu::Stm::Stm32G431> > test; you should be able to use test.mDebug.

Ok, now I understand. No, there is no instance of that template-class: all its members are static.

Would it be passible to get a drop-down-list of all objects with static storage for the menu from the .elf-file using de-mangled names? This would be very helpful. If you need an example, I will provide one.

klonyyy commented 10 months ago

I think I was able to reproduce it, thanks. For now it its not possible, however I will look for an easy solution if there is one. If you want to quickly show some data, you can consider copying it's value to a global variable. I'm aware its ugly but maybe this is something that will make your work faster.

wimalopaan commented 10 months ago

Well, that would be possible, but I think, I stick to the way copying the name from the .elf file.

Maybe another way would be to generate the STMViewer-config-file via some script parsing the .elf.

klonyyy commented 10 months ago

This might be also helpful. Basically use gdb's autocomplete (so that you get all the types right) and then copy and paste the full name. Just tried it and it works fine: image

BTW: I'll be working on a window that lists all variables and lets you pick the ones you want, but this is not a simple and quick task ;)