Switching between GDB & fpdebug
lazarus / 12-Debugger

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J-G · 2022-05-13 09:50

Having found Martin_fr's explanation about which DWARF to use and
noting that it is possible to switch between these two I've looked at
[Project][Options] and can see the DWARF Varieties listed along with
'automatic' & 'stabs' but no 'GDB'.

'auto' & 'stabs' both cause the 'Which DWARF' dialogue to appear so
are obviously not 'alias' for GDB so how do I select GDB ?

I only want to do so to test a short new project which is refusing to
compile rather than as a need to use older code.

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wp · 2022-05-13 09:56

The debugger selection is in "Tools" > "Options" > "Debugger" >
"Debugger backend". Just select the debugger from the combo box at the
very top; it should list the items "FpDebug [...]" and "Gdb [...]" by
default.

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Martin_fr · 2022-05-13 10:41

"DWARF" and "Stabs" are like ".doc" and ".odt" ...

And FpDebug vs GDB (vs LLDB) are like MS-Word vs Libre-Office-
Writer....

One is the data (or to be exact: The name of the format in which the
data is stored).
The other is the application that uses the data.

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J-G · 2022-05-13 12:04

Thanks WP & Martin_fr   -   understood on both counts.

Whether I will ever need to go back to GBD is moot but I have now
proved that it has nothing to do with the TPointF problem that raised
the question!