CRASH caused by: [PATCH 06/10] setexpr: Add some tests for buffer overflow and backref

Heinrich Schuchardt xypron.glpk at
Tue Jan 19 20:07:22 CET 2021

On 1/19/21 7:06 PM, Simon Glass wrote:
> Hi Heinrich,
> On Sun, 17 Jan 2021 at 15:52, Heinrich Schuchardt <xypron.glpk at> wrote:
>> On 11/1/20 10:15 PM, Simon Glass wrote:
>>> Add tests to check for buffer overflow using simple replacement as well
>>> as back references. At present these don't fully pass.
>>> Signed-off-by: Simon Glass <sjg at>
>>> ---
>>>    cmd/setexpr.c      | 21 +++--------
>>>    include/command.h  | 17 +++++++++
>>>    test/cmd/setexpr.c | 89 ++++++++++++++++++++++++++++++++++++++++++++++
>>>    3 files changed, 110 insertions(+), 17 deletions(-)
> Yes this is intended for sandbox.
> Do you really want to run this test on a board? If the compiler is
> working, then the sandbox test should be enough.
> I can certainly update it to run on boards, but that was not the intent.
> Regards,
> Simon

The idea of our Python test environment is that we can run it on
physical boards. Amongst others differences in bitness or endianness can
lead to test failures that occur on some boards but not on others. So
preferably tests should be executable on all boards. If this is not
reasonably possible, e.g. when using sandbox drivers, the test author
must ensure that no error occurs when building or testing on other boards.

CONFIG_CMD_SETEXPR is selected by default by
sipeed_maix_smode_defconfig. Hence we should allow testing the command
on the board.

Best regards


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