psxshm01 and psxshm02 fail on SPARC/erc32

Sebastian Huber sebastian.huber at
Wed Jan 25 07:07:58 UTC 2017

On 25/01/17 04:00, Gedare Bloom wrote:
> On Tue, Jan 24, 2017 at 7:25 PM, Joel Sherrill<joel at>  wrote:
>> >
>> >
>> >On Tue, Jan 24, 2017 at 6:23 PM, Gedare Bloom<gedare at>  wrote:
>>> >>
>>> >>Yes. They should fail with MAP_FAILED until we get a proper mmap().
>>> >>This can be either detected, or the test can be augmented until we get
>>> >>mmap support for shm objects done.
>>> >>
>> >
>> >When you say augmented, you mean with an implementation of the
>> >adapter layer you defined that uses malloc() and knows a few names?
>> >
> I mean to ignore/expect the MAP_FAILED return from mmap and terminate
> gracefully.

In case MAP_FAILED is currently the expected return value on all 
architectures, then this should be expected by the test. When will there 
be a proper mmap() implementation exist? What is a proper mmap() 
implementation for RTEMS at all?

I used mmap() on some GUI library to speed up the font initialization 
and simply mapped read-only font files (IMFS memfiles) via mmap(). It 
would be good to gather some use cases. I think Qt uses also mmap() for 
font files.

Sebastian Huber, embedded brains GmbH

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