[Bug server/28446] New: [native-extended-gdbserver] FAIL: gdb.base/a2-run.exp: run "a2-run" with shell (timeout)

[Bug server/28446] New: [native-extended-gdbserver] FAIL: gdb.base/a2-run.exp: run "a2-run" with shell (timeout)

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28446

            Bug ID: 28446
           Summary: [native-extended-gdbserver] FAIL: gdb.base/a2-run.exp:
                    run "a2-run" with shell (timeout)
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: server
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

When running test-case gdb.base/a2-run.exp with target board
native-extended-gdbserver I run into:
...
(gdb) PASS: gdb.base/a2-run.exp: run "a2-run" again after setting args
run `echo 8`^M
^M
Child exited with status 0^M
Starting program:
/home/vries/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/a2-run/a2-run
`echo 8`^M
Process
/home/vries/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base/a2-run/a2-run
created; pid = 18231^M
usage:  factorial <number>^M
^M
Child exited with status 1^M
[Inferior 1 (process 18231) exited with code 01]^M
(gdb) FAIL: gdb.base/a2-run.exp: run "a2-run" with shell (timeout)
...

This is a regression since commit bea571ebd78 "Use construct_inferior_arguments
which handles special chars".

The commit adds escapes to the backticks, which then no longer are interpreted
by the shell.

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[Bug server/28446] [native-extended-gdbserver] FAIL: gdb.base/a2-run.exp: run "a2-run" with shell (timeout)

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28446

Tom de Vries <vries at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |m.weghorn at posteo dot de

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[Bug server/28446] [native-extended-gdbserver] FAIL: gdb.base/a2-run.exp: run "a2-run" with shell (timeout)

[m.weghorn at posteo dot de]

https://sourceware.org/bugzilla/show_bug.cgi?id=28446

--- Comment #1 from Michael Weghorn <m.weghorn at posteo dot de> ---
For your case described here, it seems clear to me that the changed behaviour
is wrong.

There's also PR 28392 which is about the change in behaviour for args passed
via 'gdbserver <ARGS>' and there's currently a discussion on how to best handle
this. I think it makes sense to first come to a conclusion there before doing
the actual implementation for both, this one here and PR 28392.

If you have any opinion on that, I'd be happy to hear about that.

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