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| author | Jan Vrany <jan.vrany@labware.com> | 2022-12-16 11:38:28 +0000 |
|---|---|---|
| committer | Jan Vrany <jan.vrany@labware.com> | 2022-12-16 11:38:28 +0000 |
| commit | 429f0cd1396203204754141681b1bc65bd3f5259 (patch) | |
| tree | 22bde7421acfcaa257a7b1187e877e055ec086db /gdb | |
| parent | d88cb738e6a7a7179dfaff8af78d69250c852af1 (diff) | |
| download | binutils-gdb-429f0cd1396203204754141681b1bc65bd3f5259.tar.gz | |
gdb/testsuite: add test for Python commands redefining itself
This commit adds a test that creates a Python command that redefines
itself during its execution. This is to test use-after-free in
execute_command ().
This test needs run with ASan enabled in order to fail when it
should.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/testsuite/gdb.python/py-cmd.exp | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.python/py-cmd.exp b/gdb/testsuite/gdb.python/py-cmd.exp index aa95a459f46..48c3e18f1cc 100644 --- a/gdb/testsuite/gdb.python/py-cmd.exp +++ b/gdb/testsuite/gdb.python/py-cmd.exp @@ -300,3 +300,33 @@ gdb_test_multiple "test_multiline" $test { pass $test } } + +# Test command redefining itself + +proc_with_prefix test_command_redefining_itself {} { + # Start with a fresh gdb + clean_restart + + + gdb_test_multiline "input command redefining itself" \ + "python" "" \ + "class redefine_cmd (gdb.Command):" "" \ + " def __init__ (self, msg):" "" \ + " super (redefine_cmd, self).__init__ (\"redefine_cmd\", gdb.COMMAND_OBSCURE)" "" \ + " self._msg = msg" "" \ + " def invoke (self, arg, from_tty):" "" \ + " print (\"redefine_cmd output, msg = %s\" % self._msg)" "" \ + " redefine_cmd (arg)" "" \ + "redefine_cmd (\"XXX\")" "" \ + "end" "" + + gdb_test "redefine_cmd AAA" \ + "redefine_cmd output, msg = XXX" \ + "call command redefining itself 1" + + gdb_test "redefine_cmd BBB" \ + "redefine_cmd output, msg = AAA" \ + "call command redefining itself 2" +} + +test_command_redefining_itself |