What is 'External: SIGSEV'
lazarus / 12-Debugger

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stab · 2010-05-14 17:05

Newbie with Lazarus but long time Delphi user.

Made a very simple app, one button and onclick-event with code:
procedure TForm1.Button1Click(Sender: TObject);
var
  i : integer;
begin
  i := 0;

  i := i + 1;
end;

Would like to use breakpoints to pinpoint behavior and opened
Environment--> Options--> Debugger and marked GNU debugger(gdb).

Added a breakpoint at 'i := 0';

The app stopped immediately with:
Project project1.exe raised exception class 'External: SIGSEV'

How should one do to be able to use breakpoints?

Regards
stab

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Imants · 2010-05-15 11:00

I Delphi this code would be eliminated by optimizer and you couldn't
use brake points there either.
But which Lazarus do you use because I use Lazarus from trunk and I
have no problems with breakpoints(works same as in Delphi and no need
for extra configuration).

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JuhaManninen · 2010-05-15 12:15

Looks like gdb somehow gives the SIGSEV. Can you run gdb from command
line? Can you debug a program with it from command line?

Juha

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Marc · 2010-05-16 17:42

what os, what lazarus version ?

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stab · 2010-05-18 17:44

Os: Windows XP svp 3

Lazarus: 0.9.28.2 beta

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stab · 2010-05-18 17:47

and FPC version: 2.2.4