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* [Bug testsuite/26947] New: gdb.tui/new-layout.exp and tcl 8.5
@ 2020-11-25 23:40 vries at gcc dot gnu.org
  2020-11-26  0:39 ` [Bug testsuite/26947] " vries at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: vries at gcc dot gnu.org @ 2020-11-25 23:40 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=26947

            Bug ID: 26947
           Summary: gdb.tui/new-layout.exp and tcl 8.5
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testsuite
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

In test-case gdb.tui/new-layout.exp we find a test:
...
gdb_test "tui new-layout example src 1}" \
    "Extra '\}' in layout specification"
...
before commit 4d91ddd342b "[gdb/testsuite] Fix unbalanced braces in
gdb.tui/new-layout.exp", and after that commit:
...
gdb_test "tui new-layout example src 1\}" \
    "Extra '\}' in layout specification"
...

The commit was supposed to solve this on SLE-11 with tcl 8.5:
...
(gdb) UNRESOLVED: gdb.tui/new-layout.exp: testcase aborted due to invalid
command name: }
ERROR: Couldn't send tui new-layout example src 1} to GDB.
UNRESOLVED: gdb.tui/new-layout.exp: tui new-layout example src 1}
...
but after the commit, we have the identical:
...
(gdb) UNRESOLVED: gdb.tui/new-layout.exp: testcase aborted due to invalid
command name: }
ERROR: Couldn't send tui new-layout example src 1} to GDB.
UNRESOLVED: gdb.tui/new-layout.exp: tui new-layout example src 1}
...

After adding another escape, such that we have:
...
gdb_test "tui new-layout example src 1\\}" \
    "Extra '\}' in layout specification"
...
we get rid of the ERROR/UNRESOLVED, but now have a FAIL:
...
(gdb) tui new-layout example src 1\}^M
Trailing junk at: \}^M
(gdb) FAIL: gdb.tui/new-layout.exp: tui new-layout example src 1\}
...

There's no amount of escapes that makes this go as with tcl 8.6, where we
simply have:
...
(gdb) tui new-layout example src 1}^M
Extra '}' in layout specification^M
(gdb) PASS: gdb.tui/new-layout.exp: tui new-layout example src 1}
...

Using the two-backslash escape variant with tcl 8.6, we get the identical FAIL:
...
(gdb) tui new-layout example src 1\}^M
Trailing junk at: \}^M
(gdb) FAIL: gdb.tui/new-layout.exp: tui new-layout example src 1\}
...

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2020-11-25 23:40 [Bug testsuite/26947] New: gdb.tui/new-layout.exp and tcl 8.5 vries at gcc dot gnu.org
2020-11-26  0:39 ` [Bug testsuite/26947] " vries at gcc dot gnu.org
2020-12-10 16:56 ` vries at gcc dot gnu.org
2020-12-10 22:44 ` cvs-commit at gcc dot gnu.org
2020-12-10 22:45 ` vries at gcc dot gnu.org

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