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From: Mark Kettenis <mark.kettenis@xs4all.nl>
To: cagney@gnu.org
Cc: gdb-patches@sources.redhat.com
Subject: Re: [COMMIT] Fix decoding CIE's in DWARF frame info
Date: Fri, 05 Nov 2004 18:54:00 -0000	[thread overview]
Message-ID: <200411051853.iA5IrpfP014435@elgar.sibelius.xs4all.nl> (raw)
In-Reply-To: <418BB19C.7000100@gnu.org> (message from Andrew Cagney on Fri, 05 Nov 2004 12:00:12 -0500)

   Date: Fri, 05 Nov 2004 12:00:12 -0500
   From: Andrew Cagney <cagney@gnu.org>

   Mark Kettenis wrote:
   > The old code didn't take into account that the encoding used to
   > specify the personality routine in the augmentation could be
   > DW_PE_EH_aligned.
   > 
   > Fixed by the attach patch.
   > 
   > Committed to mainline.  I'll commit this to the branch later today.

   How are you testing this?  I'm seeing:

   dwarf2-frame.c:1083: internal-error: Unsupported encoding: DW_EH_PE_indirect

If your toolchain really generates DW_EH_PE_indirect, it's a different
problem; I don't know how to properly support this :-(.

The problem fixed by the patch is different: because we failed to do
proper alignment gdb was essentially interpreting garbage.  Now if
that garbage accidentally matched DW_EH_PE_indirect, it could lead to
the error message you're seeing.

Anyway, I noticed the problem when writing some code at work.
Unfortunately I don't know how to convert it into a test case.

Cheers,

Mark


  reply	other threads:[~2004-11-05 18:54 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-05 15:43 Mark Kettenis
2004-11-05 17:00 ` Andrew Cagney
2004-11-05 18:54   ` Mark Kettenis [this message]
2004-11-05 19:12     ` Daniel Jacobowitz
2004-11-05 20:37       ` Mark Kettenis
2004-11-05 20:41         ` Daniel Jacobowitz
2004-11-05 20:53           ` Mark Kettenis
2004-11-05 21:22     ` Andrew Cagney
2004-11-05 21:25       ` Daniel Jacobowitz
2004-11-05 22:00         ` Mark Kettenis
2004-11-05 22:11         ` Andrew Cagney

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