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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: dwz@sourceware.org
Subject: [Bug default/24275] New: hardlink handling leaves temporary file if
 not file compressed
Date: Tue, 01 Jan 2019 00:00:00 -0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D24275

            Bug ID: 24275
           Summary: hardlink handling leaves temporary file if not file
                    compressed
           Product: dwz
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: default
          Assignee: nobody at sourceware dot org
          Reporter: vries at gcc dot gnu.org
                CC: dwz at sourceware dot org
  Target Milestone: ---

[ Filed before at:
- rbc#1625780 - "dwz crashed on s390x and armv7hl and rpmbuild leave
    s390x.debug.#dwz#"
  https://bugzilla.redhat.com/show_bug.cgi?id=3D1625780
- rbc#1671883 - "dwz fails to remove temporary files if input files are
    hardlinked"
  https://bugzilla.redhat.com/show_bug.cgi?id=3D1671883
]

Consider a hello world executable a.out:
...
$ gcc -g hello.c
...

with a hardlink b.out:
...
$ ln a.out b.out
...

Running dwz once (with hardlink support) compresses them:
...
$ dwz -h a.out b.out
...

and trying once more, doesn't compress them further:
...
$ dwz -h a.out b.out
dwz: a.out: DWARF compression not beneficial - old size 3452 new size 3452
...

but leaves a temporary file:
...
$ ls a.out* b.out*
a.out  b.out  b.out.#dwz#.uiIcPY
...

--=20
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