DEBUG is working again on VSCode, finally
Now, I’ve a problem. If I place a breakpoint (for example) there at line 1074:
it ONLY stop at 1078. So can’t catch that condition, and not able to debugging at all (at 1078 it will trigger for each Param’s change, not only paramId 9 and value = 0.1).
What can be done? I compile with -O0, isn’t enough?
stop at 1072, the beginning of that function, not in the function itself
it doesn’t make sense: this will break at every function call. I just need to hit when paramId = 9 and value = 0.1f.
This is a bit of a wild stab, but try
-ggdb3 rather than
fabs(value - 0.1) < 0.02 or some such. The param hitting
0.1 exactly is pretty unlikely yeah?
Seems a bit better, but still a pain
Can step-back be activated in VSCode/gdb? I would like to step back on previous lines of code, seeing how the situation was before that instructions etc.
@baconpaul For this specific case, I can intercept exactly 0.1f.
Well except it seems you can’t because the debugger won’t stop
debuggers are great but when the fail me I often debug with print also. If you put a
std::cout << "HERE" << std::endl in the if statement, do you see it and still not get a debugger stop? I would just do that to eliminate any ambiguity about values vs debug infrastructure.
sure I see it. Its like it can’t reach that exact point, dunno why. -ggdb3 seems help anyway.
Now: that’s not enough. I need to go step back instructions by instructions, since I think I’m in the territory of pointer alias and/or memory leaks, and its hard with breakpoint and debug message.
Is it possible to setup this feature with gdb (in VSCode, Windows/MinGW)?
-exec target record-full on DEBUG CONSOLE, but it says Process record: the current architecture doesn’t support record function. Can’t we do it on Windows with my actual architecture?
$ gcc -dumpmachine
I’m sorry I’ve only ever run the rack debugger on mac and lin.
Which architeture do you have? Do you use GDB? Does it support reverse step? I could think to setup the environment…
I use clang in clion on mac and gcc in clion on linux
i have never stepped backwards but see my mac can’t seem to do it - and doc shows this as a gdb not lldb thing on a quick google. I don’t have a linux box with me now to check but the clion doc indicates it would work with gdb on linux.
Anyone tried this?
Using rr in an IDE · rr-debugger/rr Wiki · GitHub
Maybe can be a solution?
EDIT: doh!!! Only Linux
I assume this is all on a build with optimizations tuned off?
Yes of course. But it seems more catchable now with
The Jebrains IDE’s really are second to none, and notice that for FOSS projects you might get them for free