Pre-processor magic or test library?
sebastian.huber at embedded-brains.de
Thu Nov 2 13:22:31 UTC 2017
On 02/11/17 13:01, Sebastian Huber wrote:
> On 30/10/17 21:56, Chris Johns wrote:
>> On 31/10/2017 01:21, Joel Sherrill wrote:
>>> On Oct 30, 2017 8:43 AM, "Chris Johns" <chrisj at rtems.org
>>> <mailto:chrisj at rtems.org>> wrote:
>>> On 28/10/2017 22:42, Sebastian Huber wrote:
>>> > we have currently some pre-processor magic to map the
>>> standard output
>>> functions to the RTEMS test printer. This works only if you
>>> <tmacros.h> in every test file in the right spot. An
>>> alternative would be to
>>> use a separate library for all tests, e.g. librtemstest.a which
>>> puts(), printf(), fprintf(), etc. How do you think about this?
>>> I like it.
>>> I like the idea but not using the same names for the.methods. this
>>> will mean
>>> that if the linker magic isn't right, you end up getting the wrong
>> The testing output routings could postfix a character like '|' to
>> '\n' and the
>> tester can check the output always have that character in column 1
>> and flag the
>> test and incorrectly linked if it does not?
> Using the wrong output facility is not a catastrophe. Most tests work
> fine with an interrupt driven console driver. I tried to provide a
> special console driver using the polled char input/output functions
> (attached patch), however, most console drivers define
> console_initialize() and the BSP_output_char in one file. Changing
> this would require more work than I can dedicate to this task.
The pre-processor magic in the testsuite doesn't catch the various
places in RTEMS which directly use fprintf(), etc. for example
A quick hack to enable a console driver in librtemsio.a would be to
define console_*() as weak functions in the normal console driver.
Separating the console driver from the device-specifics would be several
days of work. I guess nobody has a time budget for this.
Is this stuff really important for the next RTEMS release?
Sebastian Huber, embedded brains GmbH
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