[tcf-dev] breakpoints / access types

[Samuel Ghinet <samuel.ghinet@xxxxxxxxxxxx>]

Hello,

I am working on a debugger using tcf and I've hit into an issue 
concerning it & Eclipse, and I don't know what to make of it.

On debugging an application, when I toggle a breakpoint from Eclipse, 
the tcf agent finds it to have the type "Auto".
However, looking at the function get_bp_access_types from breakpoints.c, 
we see this:

> if (virtual_addr && type != NULL && strcmp(type, "Software") == 0) 
access_types |= CTX_BP_ACCESS_SOFTWARE;

Basically, if the breakpoint type is Auto (default case from Eclipse), 
then the CTX_BP_ACCESS_SOFTWARE flag is not set, which means that when 
the context_plant_breakpoint function is called, the debugger can only 
assume that the user (here, Eclipse) had asked for a hardware breakpoint 
- even though the "hardware" value of the BreakInstruction struct is 0.

So my question is, what is the expected behavior in tcf? Should "Auto" 
be translated to "Software" or to "Hardware"? Or, there is a point where 
the debugger (outside of tcf) is supposed to decide what "Auto" should mean?

Thanks,
Samuel Ghinet