Re: [HACKERS] DEC Alpha and HAVE_INT_TIMEZONE

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: dwayne(at)mika(dot)com
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] DEC Alpha and HAVE_INT_TIMEZONE
Date: 1998-03-20 17:19:42
Message-ID: 199803201719.MAA08203@candle.pha.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

>
> -----BEGIN PGP SIGNED MESSAGE-----
>
> I've finally figured out why the Alpha fails when
> HAVE_INT_TIMEZONE is defined. As far as I'm concerned, somebody
> at DEC should be shot. The problem has nothing to do with
> postgresql code. The symbol 'timezone' is defined in two
> different libraries, as two very different things! libc.a
> defines it as a global variable of type long, as documented in
> the timezone(3) manpage. However, libbsd.a defines a function
> named timezone. Since we link explicitly to -lbsd, guess which
> definition gets linked into the program? We're using the address
> of that function as our timezone offset. Well, the low four
> bytes of the address, anyway.

I assume they are supporting both uses for the symbol. I recommend
hard-coding the stuff into the port, and hopefully it will work. Please
send it patches soon. If it is alpha-specific, we can fold it into the
mega-patch, because alpha was broken in 6.3 anyway.

>
> As far as I can tell, we don't require any of the routines used
> in libbsd.a. I'm about to do some more testing to confirm this,
> so hopefully a patch will be on its way soon. Up to this point,
> all I've recompiled under this new model is postgres, which links
> fine, and runs without error. The only failure on the date tests
> that I noticed seemed to be using PST when it should have been
> PDT. I suspect that's an artifact of where I am (Michigan)
> which, according to the /etc/zoneinfo/localtime source, didn't
> observe DST between 1968 and 1973.

Yea, I see this sometimes too on BSDI.

--
Bruce Momjian | 830 Blythe Avenue
maillist(at)candle(dot)pha(dot)pa(dot)us | Drexel Hill, Pennsylvania 19026
+ If your life is a hard drive, | (610) 353-9879(w)
+ Christ can be your backup. | (610) 853-3000(h)

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Bruce Momjian 1998-03-20 17:24:05 Re: [HACKERS] psql nested queries with 2000+ records
Previous Message Bruce Momjian 1998-03-20 17:06:55 Re: [HACKERS] Re: [PATCHES] patches for 6.2.1p6