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List:       binutils-bugs
Subject:    [Bug ld/29293] New: [2.39 Regression] elfnn-aarch64.c: def_protected member unintialized
From:       "pexu at sourceware dot mail.kapsi.fi" <sourceware-bugzilla () sourceware ! org>
Date:       2022-06-27 12:16:52
Message-ID: bug-29293-70 () http ! sourceware ! org/bugzilla/
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https://sourceware.org/bugzilla/show_bug.cgi?id=29293

            Bug ID: 29293
           Summary: [2.39 Regression] elfnn-aarch64.c: def_protected
                    member unintialized
           Product: binutils
           Version: 2.39 (HEAD)
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: pexu at sourceware dot mail.kapsi.fi
  Target Milestone: ---

Created attachment 14178
  --> https://sourceware.org/bugzilla/attachment.cgi?id=14178&action=edit
aarch64: properly initialize def_protected member

Hi.

"aarch64: Disallow copy relocations on protected data" [1] commit unfortunately
does not initialize def_protected member.

This leads to spurious "copy relocation against non-copyable protected symbol"
errors as def_protected member might not be touched (if definition is false)
and the allocation routine (bfd_hash_allocate/objalloc_alloc) does not appear
to zero initialize allocated space.

Attached a patch proposal.

[1]
https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=90b7a5df152a64d2bea20beb438e8b81049a5c30

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