Bug#106464: marked as done ([alpha] gcc-2.95 generates bad STABS debugging info on Alpha)
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>From chris@debian.org Tue Jul 24 13:54:07 2001
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Date: Tue, 24 Jul 2001 14:54:03 -0400 (EDT)
From: "Christopher C. Chimelis" <chris@debian.org>
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To: submit@bugs.debian.org
Subject: [alpha] gcc-2.95 generates bad STABS debugging info on Alpha
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Package: gcc-2.95
Version: 2.95.4-0.010629
Severity: critical
While packaging a new binutils, I noticed that 'strip -g' called twice
failed to strip binaries that were generated by gcc-2.95, and in fact,
produced binaries that no longer worked (as well as causing strip to
segfault). This only appears to affect object files, NOT linked binaries,
so stripping archives won't work properly. When comparing assembly
output, it appears that the stabs info isn't correctly generated. Using
gcc-3.0 to compile the same file (with the -gstabs option) produced a
correct object file that could be stripped repeatedly without
problems. Also, using DWARF2 output from gcc-2.95 as well as gcc-3.0 both
worked fine. I emailed upstream for binutils to verify this and HJ Lu
confirmed that the stabs info doesn't look correct and that binutils was
actually correct. This appears to only affect Alpha and is holding back a
binutils upload.
This bug is meant as a tracking mechanism for me while I try to fix this
problem, but if someone wants to ask upstream, I can provide asm output
and a very simple testcase.
Binutils that uncovered the problem: 2.11.90.0.24. 2.11.90.0.7 appears to
work fine, but I could reproduce the same problem if I used a certain file
and passed it certain flags. All gcc-2.95.4 versions that I have (dating
back to April) showed this problem.
C
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>From chris@debian.org Thu Aug 16 15:13:22 2001
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for <106464-done@bugs.debian.org>; Thu, 16 Aug 2001 16:13:21 -0400
Date: Thu, 16 Aug 2001 16:13:21 -0400 (EDT)
From: "Christopher C. Chimelis" <chris@debian.org>
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To: 106464-done@bugs.debian.org
Subject: gcc-2.95 generates bad STABS info on Alpha
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Turns out that this was a gas problem after all. Solved in binutils
2.11.90.0.27-1. For historical reasons, there is something wrong with
what gcc-2.95 outputs, but the problems that I was seeing shouldn't have
been caused by that at all.
C
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