How to debug fcl from within Lazarus
lazarus / 12-Debugger

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merlin352 · 2009-10-28 10:06

Hello

I come again up with this topic because there is no real solution to
find. Neither in this forum nor on the web.

My Problem: I want to debug the db-unit from the fcl.

I have created debug versions for fcl-db with the following procedure
:

cd \pp\packages\fcl-db
make clean
make debug CREATESMART=1 SMARTLINK=1
make install

after this the newly created *.o and *.ppu are under
\pp\units\i386-win32\fcl-db

They are bigger than the ones created without debug-information.

Then I recompile my project under Lazarus. I can debug my project, 
but there is no debug-information for p.ex. db.pas. Breakpoints are
grayed out as invalid. I cannot step into the code.

Has anyone more information on this topic.

thx

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Vincent Snijders · 2009-10-28 10:25

Are the newly compiled units used in your program and not the old
(without debuginfo) units from your regular installation? (try for
example renaming db.ppu to db.ppu.gone and see if your program still
compiles).

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merlin352 · 2009-10-28 10:31

There is only 1 copy of db.ppu on my computer.

The compiler does no longer find db.ppu when I rename it and stops
with an error.

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merlin352 · 2009-10-28 12:54

Ok, I found the solution.

One thing is that I use DWARF-debug information to have limited access
to properties

So the solution is

cd \pp\packages\fcl-db
make clean
make debug OPT=-gw 
make install

With the 3. line DWARF-info is generated. Smartlinking does not work
with DWARF, so the options are useless.

Greetings