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From: "marcel at codesourcery dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug testsuite/30637] New: compare-sections.exp fails due to
 unfulfilled sections mismatch
Date: Fri, 14 Jul 2023 16:20:19 +0000
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X-Bugzilla-Product: gdb
X-Bugzilla-Component: testsuite
X-Bugzilla-Version: 12.1
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X-Bugzilla-Severity: minor
X-Bugzilla-Who: marcel at codesourcery dot com
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D30637

            Bug ID: 30637
           Summary: compare-sections.exp fails due to unfulfilled sections
                    mismatch
           Product: gdb
           Version: 12.1
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: testsuite
          Assignee: unassigned at sourceware dot org
          Reporter: marcel at codesourcery dot com
  Target Milestone: ---

Hi,

testing GDB 12 (and 13) on Nios II ELF, I recognized the following test fai=
l:

   FAIL: gdb.base/compare-sections.exp: after run to main: compare-sections

... which results from the test case=20

   gdb_test "compare-sections" \
        "MIS-MATCHED.*warning.*One or more sections.*does not match.*loaded
file"

in 'with_test_prefix "after run to main"' in compare-sections.exp.

If my understanding is correct, then it is expected that at least one secti=
on
of the image on the target differs from the corresponding section on the ho=
st
after running to main. Debugging the test binary manually I found that all
sections match and I wondered if the test assumption (the mismatch) is inde=
ed
valid for non-PIE targets (when "is_pie" is false). Maybe "compare-sections"
should rather be handled like "compare-sections -r" which checks the match =
vs.
mismatch depending on is_pie (added in commit 34dafe9f39e)?

If my understanding is correct, then the attached patch seems to fix it.

Marcel

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