On Sat, 20 Jul 2019 at 03:01, Chris Johns <chr...@rtems.org> wrote: > On 19/7/19 8:32 pm, Nils Hölscher wrote: > > I am currently adding more and more libbsd deps to my build, that are > not in > > rtems or rtems-libbsd. > > Now I have been touching these to files of the BSD kernel: > > > https://github.com/freebsd/freebsd/blob/0966ce5cd477cd7c8b63b0f9de75396aa5939032/sys/arm/include/cpu-v4.h > > > https://github.com/freebsd/freebsd/blob/0966ce5cd477cd7c8b63b0f9de75396aa5939032/sys/arm/include/atomic-v6.h > > Throwing a good dozen of warning when compiling and I only need one call > from > > these files. > > This is needed in the pru driver to distinguish between prussv1 and > prussv2, a > > feature I definitely want. > > FYI: prussv1 is on the TI Sitara AM18xx SoCs and v2 on the AM35xx. > > > > So the question is should I try to resolve those warnings and try to > port the > > whole files to rtems or should I try to just pick what I need and be > done? > > > > What are the warnings? > In file included from ../../sys/arm/ti/ti_cpuid.c:50:0: ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h: In function 'tlb_flush_all_local': ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h:347:2: warning: implicit declaration of function 'dsb' [-Wimplicit-function-declaration] dsb(); ^~~ ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h: In function 'icache_sync': ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h:488:2: warning: implicit declaration of function 'isb' [-Wimplicit-function-declaration] isb(); ^~~ ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h: In function 'dcache_inv_poc': ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h:550:2: warning: implicit declaration of function 'cpu_l2cache_inv_range'; did you mean 'icache_inv_all'? [-Wimplicit-function-declaration] cpu_l2cache_inv_range(pa, size); ^~~~~~~~~~~~~~~~~~~~~ icache_inv_all ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h: In function 'dcache_wb_poc': ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h:606:2: warning: implicit declaration of function 'cpu_l2cache_wb_range' [-Wimplicit-function-declaration] cpu_l2cache_wb_range(pa, size); ^~~~~~~~~~~~~~~~~~~~ ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h: In function 'dcache_wbinv_poc': ../../sys/arm/ti/../../../freebsd/sys/arm/include/cpu-v6.h:625:2: warning: implicit declaration of function 'cpu_l2cache_wbinv_range'; did you mean 'dcache_wbinv_poc'? [-Wimplicit-function-declaration] cpu_l2cache_wbinv_range(pa, size); ^~~~~~~~~~~~~~~~~~~~~~~ dcache_wbinv_poc
> > Do you have the libbsd changes in a repo somewhere so I can have a look? > I am currently keeping the changes in the rtems-pru repo with absolute paths. The files of interest would be: https://github.com/nilhoel1/rtems-pru/tree/pruss-shell/freebsd/sys/arm/include And the file that includes these https://github.com/nilhoel1/rtems-pru/blob/pruss-shell/sys/arm/ti/ti_cpuid.c#L46 I also extracted the assembler call I need here: https://github.com/nilhoel1/rtems-pru/blob/pruss-shell/include/bsp/cp15_midr_get.h Best, Nils > > > Chris >
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