On 21/10/20 2:50 am, Sebastian Huber wrote: > On 02/04/2020 09:09, Sebastian Huber wrote: > >> On 02/04/2020 08:46, Chris Johns wrote: >> >>> On 2020-04-02 16:53, Sebastian Huber wrote: >>>> Hallo Chris, >>>> On 21/03/2020 07:45, Sebastian Huber wrote: >>>>> On 20/03/2020 22:23, Chris Johns wrote: >>>>>>> On 20 Mar 2020, at 4:49 pm, Sebastian Huber >>>>>>> <sebastian.hu...@embedded-brains.de> wrote: >>>>>>> >>>>>>> On 20/03/2020 05:15, Chris Johns wrote: >>>>>>> >>>>>>>> On 19/3/20 7:52 pm, Sebastian Huber wrote: >>>>>>>>> The ARMv7-M architecture has no CP-15. The inline assembly for the >>>>>>>>> CP-15 access leads to assembler errors if compiled with -O0. >>>>>>>> I would like to understand this one in detail to see why there is cp15 >>>>>>>> in the build. >>>>>>> In ARMv7-M the system registers are memory mapped. >>>>>>> >>>>>>> If I compile a Cortex-M based BSP with -O0, then I get: >>>>>>> >>>>>> BSP? >>>>> For example the atsamv BSP. >>>> could you please have a look at this. Being able to build with -O0 is quite >>>> helpful during BSP development. >>> >>> Is this important for 5.1.0? >> >> It is not absolutely necessary, but I regularly had to fix this locally. We >> have several ARMv7-M based BSPs. This was my first attempt to address this >> issue: >> >> https://lists.rtems.org/pipermail/devel/2019-February/024914.html >> > We work no on another Cortex-M based BSP and building with -O0 would be really > nice.
Great. Does this mean you are adding support for libdebugger for this model of ARM? Chris _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
