[Lazarus] Changing the type of debug info
William Oliveira Ferreira
bdexterholland at gmail.com
Wed Dec 14 15:11:50 CET 2011
I´ll gonna test stabs for a while as i´m using *Lazarus 0.9.31 r32454 FPC
2.5.1 i386-win32-win32/win64*. I´ve worryed with FPC version, but, as you
said, dwarf may not work on 64Bits versions...
Thanks for information...
________________________________
William de Oliveira Ferreira
Bacharel em Sistemas de Informação
2011/12/14 Martin <lazarus at mfriebe.de>
> On 14/12/2011 01:14, William Oliveira Ferreira wrote:
>
> does lazarus takes some especific advantage changing the type of debug
> info? (project options > compiler options > linking)
>
>
> yes, but only for a few things.
>
> Before changing it, ensure your gdb can deal with it. Normally that is the
> cases
> - On Mac, not sure as apple still distributes 6.3.50
> - win 64 before fpc 2.6 , dwarf may not work
>
> when choosing dwarf, always use "+ sets" (unless maybe again your gdb is
> real old, I have used it with gdb 6.7.5 all ok)
>
> dwarf 3 is experimental and works LESS well than dwarf (2) => unless you
> have a specially patched gdb (archer branch).
> (Though I did not test the archer gdb, no idea, if it is good)
>
>
> ----------------
> biggest diff is
>
> with dwarf you can inspect certain properties. that is ONLY properties
> that directly map to a field.
> Neither stabs, nor any dwarf will call a getter function.
>
> stabs deals better with
> - nested (dynamic) array
> - param-by-ref "function foo( var RefParam: TBar)"
>
> however Laz 0.9.31 deals with most of this.
>
> there may be a few other diffs. I have no complete list
>
> some fpc (or maybe the linker) had bugs, leaving out line info for parts
> of try except. But I do not recall the exact details
>
>
>
> --
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>
>
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