Re: Using gpsd-dbg

[Fred Wright]

On Tue, 14 Sep 2021, Gary E. Miller wrote:
> On Tue, 14 Sep 2021 19:28:45 +0000
> Jared Hagel <jared.hagel@vontas.com> wrote:
>
> > Thanks Gary. I am building from source. Turning on debugging before
> > building sounds like the better option to me. I'll do that - after I
> > figure out how 😊. I'm sure it won't be hard to find.
>
> Assuming you are using gcc, just build with CFLAGS="-ggdb"

Actually, the best way is just to specify debug=yes on the scons command 
line, which includes debug information in both compiling and linking, and 
also turns off optimizations, since gdb and lldb don't tend to handle 
optimized code as well as their documentation suggests.  If you really 
need to debug optimized code (e.g., because the code behaves differently 
when optimized), you can use debug_opt=yes instead, but then you should be 
prepared to see a somewhat distorted view of the program's state through 
the debugger.  In that case, sometimes it's necessary to look at the 
assembler code to see what's really going on.

Fred Wright