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From: Daniel Jacobowitz <drow@false.org>
To: Jim Blandy <jimb@red-bean.com>
Cc: Ron McCall <ronald.mccall@snet.net>, gdb@sources.redhat.com
Subject: Re: warning: (Internal error: pc 0xd00 in read in psymtab, but not in symtab.)
Date: Wed, 16 Nov 2005 00:38:00 -0000	[thread overview]
Message-ID: <20051116003812.GA25895@nevyn.them.org> (raw)
In-Reply-To: <8f2776cb0511151612g34ce97ccn9a6b5101615b49f5@mail.gmail.com>

On Tue, Nov 15, 2005 at 04:12:14PM -0800, Jim Blandy wrote:
> On 11/15/05, Daniel Jacobowitz <drow@false.org> wrote:
> > No, that doesn't work.  The high address is probably
> > .gnu.linkonce.foo+0x104, which may show up as 0x104 depending on the
> > relocation format in use.
> 
> Checking my understanding:
> 
> When we drop a linkonce section, we also drop all relocs referring to
> symbols defined in that section, or the section's STT_SECTION symbol. 
> (Or do we just make the relocs use STN_UNDEF as their symbol?)  If the

Neither, quite.  We specifically fail to resolve them because they are
in .debug_info; otherwise this would be a fatal error.

> architecture uses RELA relocs, then there's probably a zero sitting in
> the code itself, but if it uses REL, then the addend is in the code,
> so we'll see it when we read the value in GDB.

Yes, that's exactly what I meant.

-- 
Daniel Jacobowitz
CodeSourcery, LLC

  reply	other threads:[~2005-11-16  0:38 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-08 15:07 Ron McCall
2005-11-13 17:39 ` Daniel Jacobowitz
2005-11-15  1:07   ` Ron McCall
2005-11-15  2:09     ` Daniel Jacobowitz
2005-11-16  3:28       ` Ron McCall
2005-11-15  6:50     ` Vladimir Prus
2005-11-15 20:46       ` Ron McCall
2005-11-15 23:10         ` Jim Blandy
2005-11-15 23:25           ` Daniel Jacobowitz
2005-11-16  0:12             ` Jim Blandy
2005-11-16  0:38               ` Daniel Jacobowitz [this message]
2005-11-16  1:33                 ` Jim Blandy
2005-11-16  2:53                   ` Daniel Jacobowitz
     [not found]                   ` <20051116025218.GA27921@nevyn.them.org>
2005-11-16  2:54                     ` Jim Blandy
2005-11-16  2:56                       ` Daniel Jacobowitz

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