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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/31237] New: [gdb, clang] FAIL: gdb.gdb/index-file.exp:
 gdb-index files are identical
Date: Fri, 12 Jan 2024 08:13:00 +0000
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X-Bugzilla-Product: gdb
X-Bugzilla-Component: gdb
X-Bugzilla-Version: HEAD
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: vries at gcc dot gnu.org
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X-Bugzilla-Priority: P2
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31237

            Bug ID: 31237
           Summary: [gdb, clang] FAIL: gdb.gdb/index-file.exp: gdb-index
                    files are identical
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

I build gdb with clang, and ran into:
...
(gdb) PASS: gdb.gdb/index-file.exp: create second dwarf-index files
Executing on host: cmp -s
"/home/vries/gdb/build/gdb/testsuite/outputs/gdb.gdb/index-file/index_1/xgd=
b.gdb-index"
"/home/vries/gdb/build/gdb/testsuite/outputs/gdb.gdb/index-file/index_2/xgd=
b.gdb-index"
   (timeout =3D 300)
builtin_spawn -ignore SIGHUP cmp -s
/home/vries/gdb/build/gdb/testsuite/outputs/gdb.gdb/index-file/index_1/xgdb=
.gdb-index
/home/vries/gdb/build/gdb/testsuite/outputs/gdb.gdb/index-file/index_2/xgdb=
.gdb-index^M
FAIL: gdb.gdb/index-file.exp: gdb-index files are identical
...

And indeed:
...
$ ls -al index_2/xgdb.gdb-index
-rw-------. 1 vries vries 13582433 12 jan 09:08 index_2/xgdb.gdb-index
$ ls -al  index_1/xgdb.gdb-index
-rw-------. 1 vries vries 13582873 12 jan 09:08 index_1/xgdb.gdb-index
...

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