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From: Jeffrey A Law <law@cygnus.com>
To: Alan Modra <alan@linuxcare.com.au>
Cc: David Huggins-Daines <dhd@linuxcare.com>,
	Paul Bame <bame@noam.fc.hp.com>,
	Alan Modra <amodra@puffin.external.hp.com>,
	parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] Non-bootable kernel problems
Date: Fri, 14 Jul 2000 10:02:05 -0600	[thread overview]
Message-ID: <1747.963590525@upchuck> (raw)
In-Reply-To: Your message of Fri, 14 Jul 2000 10:44:27 +1000. <Pine.LNX.4.21.0007141038590.15538-100000@front.linuxcare.com.au>


  In message <Pine.LNX.4.21.0007141038590.15538-100000@front.linuxcare.com.au>y
ou write:
  > On 13 Jul 2000, David Huggins-Daines wrote:
  > 
  > > Okay, this is my final word on this for today, I promise that if I
  > > send any more mail on it, it will include a patch :-)
  > 
  > Nice bit of debugging, David.  Have a look in
  > gcc/config/pa/pa.c:output_global_address
  > 
  >       /* How bogus.  The compiler is apparently responsible for
  > 	 rounding the constant if it uses an LR field selector.
  > 
  > 	 The linker and/or assembler seem a better place since
  > 	 they have to do this kind of thing already.
  > 
  > 	 If we fail to do this, HP's optimizing linker may eliminate
  > 	 an addil, but not update the ldw/stw/ldo instruction that
  > 	 uses the result of the addil.  */
  >       if (round_constant)
  > 	offset = ((offset + 0x1000) & ~0x1fff);
  > 
  > Zap these two lines, and I think the problem will go away.
But that's totally the wrong thing to do as it will break hpux.

The linker is the problem.

jeff

  reply	other threads:[~2000-07-14 16:18 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-07-12 23:35 [parisc-linux] Non-bootable kernel problems Richard Hirst
2000-07-13 17:14 ` Paul Bame
2000-07-13 18:46   ` David Huggins-Daines
2000-07-13 21:14     ` David Huggins-Daines
2000-07-13 19:20       ` Jeffrey A Law
2000-07-14 16:10         ` David Huggins-Daines
2000-07-14 16:39           ` Jeffrey A Law
2000-07-14 18:53             ` David Huggins-Daines
2000-07-14 20:40               ` David Huggins-Daines
2000-07-14 22:14                 ` GAS fix for reloc problems (was Re: [parisc-linux] Non-bootable kernel problems) David Huggins-Daines
2000-07-15  8:33                   ` Alan Modra
2000-07-15  1:31               ` [parisc-linux] Non-bootable kernel problems Alan Modra
2000-07-13 23:45       ` David Huggins-Daines
2000-07-14  0:44         ` Alan Modra
2000-07-14 16:02           ` Jeffrey A Law [this message]
2000-07-14 16:02             ` David Huggins-Daines
2000-07-14 16:37               ` Jeffrey A Law

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