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From: "gprocida+abigail at google dot com" <sourceware-bugzilla@sourceware.org>
To: libabigail@sourceware.org
Subject: [Bug default/27769] New: XML reader shares a corpus object between corpora
Date: Fri, 23 Apr 2021 07:52:46 +0000	[thread overview]
Message-ID: <bug-27769-9487@http.sourceware.org/bugzilla/> (raw)

https://sourceware.org/bugzilla/show_bug.cgi?id=27769

            Bug ID: 27769
           Summary: XML reader shares a corpus object between corpora
           Product: libabigail
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: default
          Assignee: dodji at redhat dot com
          Reporter: gprocida+abigail at google dot com
                CC: libabigail at sourceware dot org
  Target Milestone: ---

Created attachment 13396
  --> https://sourceware.org/bugzilla/attachment.cgi?id=13396&action=edit
fresh corpus object patch

Commit ebaf3305bc5adc5eb45cca2dbb9b7d94b99b6800 added a more detailed error
message around an assertion about architecture consistency.

I revisited the trigger for this today as I've been testing using whole
histories of XML versions, including a few ABIs which contained stray objects
from a different architecture. Note that the corpora in the XML were
consistently of one architecture each (as abi-instr has no architecture
attribute).

I also separately noticed yesterday that parts of the ABI get dropped if the
same abi-instr path is used in multiple corpora.

Both the assertion failure and the path collision issue go away if the XML
reader allocates a fresh corpus object for each corpus element. I have a
trivial patch to do this (and the test suite passes). However, I haven't yet
looked into whether there was an underlying reason for re-using the corpus
object.

I've attached the patch here for completeness.

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             reply	other threads:[~2021-04-23  7:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-23  7:52 gprocida+abigail at google dot com [this message]
2021-04-23 15:31 ` [Bug default/27769] " gprocida+abigail at google dot com
2021-04-27 11:32 ` gprocida+abigail at google dot com
2021-08-23  8:59 ` gprocida at google dot com

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