Re: [hatari-devel] Fwrite warnings

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 27.10.2022 1.38, Roger Burrows wrote:
> On 27 Oct 2022 at 0:39, Eero Tamminen wrote:
> > On 26.10.2022 15.16, Uwe Seimet wrote:
> > > > with the latest sources I get tons of warnings when, for instance, I
> > compile
> > > > with Pure C. I have never seen these warnings before.
> > > >
> > > > WARN : GEMDOS Fwrite() to 'ROOT.O' file, opened as read-only
> >
> > This is from following commit:
> > https://git.tuxfamily.org/hatari/hatari.git/commit/?id=799020b84d0224a4bb38f2b
> > 892a8ecdd1c11bcc1
> Since Atari TOS allows writes to files opened as read-only, I'm not sure what
> the purpose of this warning is, particularly if it clutteres up the console.

Until very recently, Hatari GEMDOS HD has opened host files as 
read-only, when TOS program asks for that in Fopen().

=> programs Fopen()ing files as read-only when they intend to write to 
them, seems exceedingly rare, as I have never encountered problems with 
that (and I've tested huge amount of programs).

Read-only Fcreate() calls GEMDOS HD has opened Fcreate() files as 
writable since 2009, but it chmod()s the file as read-only so that 
writes for successive opens would not have succeeded (without Fattrib() 
before them).


	- Eero