[GSoC 2020: Daily Update]: Building EPICS with RTEMS5

Gedare Bloom gedare at rtems.org
Wed Jul 1 03:55:27 UTC 2020 

On Tue, Jun 30, 2020 at 9:42 PM Mritunjay Sharma
<mritunjaysharma394 at gmail.com> wrote:
>
> Hi Gedare,
>
> Thank you for the quick response, I tried using --target=i386-rtems4.10, which again
> gave me the same error.
>
Did you build an RTEMS compiler toolchain for 4.10? and install it to
a prefix in your $PATH?

> "checking for RTEMS_CPU_MODEL... i386_fp
> checking for RTEMS_BSP_FAMILY... pc386
> checking for CPU_CFLAGS... (cached) -mtune=i386
> checking for CFLAGS_OPTIMIZE_V... (cached) -O2 -g
> checking for style of include used by make... GNU
> checking for i386-rtems4.10-gcc... no
> configure: error: no acceptable cc found in $PATH
> Makefile:712: recipe for target 'pc386' failed
> make[2]: *** [pc386] Error 1
> make[2]: Leaving directory '/home/mritunjay/development/rtems-4.10.2/pc-386/i386-rtems4.10/c'
> Makefile:257: recipe for target 'all-recursive' failed
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory '/home/mritunjay/development/rtems-4.10.2/pc-386/i386-rtems4.10/c'
> Makefile:275: recipe for target 'all-recursive' failed
> make: *** [all-recursive] Error 1"
>
> Mritunjay
>
> On Wed, Jul 1, 2020 at 3:48 AM Gedare Bloom <gedare at rtems.org> wrote:
>>
>>  Use --target=i386-rtems4.10 instead of  --target=i386-rtems
>>
>> Does this work with 4.10.3/4.10 HEAD?
>>
>> On Tue, Jun 30, 2020 at 3:54 PM Mritunjay Sharma
>> <mritunjaysharma394 at gmail.com> wrote:
>> >
>> > Hello everyone,
>> >
>> > I followed the documentation here https://docs.rtems.org/releases/rtemsdocs-4.10.2/share/rtems/pdf/started.pdf and
>> > started building RTEMS (4.10.2) for target architecture: i386 and BSP: pc386. The configure seemed to be fine
>> > after entering the following command:
>> > "../configure --target=i386-rtems --disable-posix --enable-cxx --enable-rtemsbsp=pc386 --enable-tests=samples --prefix=/home/development/rtems-4.10.2"
>> >
>> > However, the make failed with the following error: checking for i386-rtems-gcc... no
>> > "configure: error: no acceptable cc found in $PATH
>> > Makefile:712: recipe for target 'pc386' failed
>> > make[2]: *** [pc386] Error 1
>> > make[2]: Leaving directory '/home/mritunjay/development/rtems-4.10.2/pc386/i386-rtems/c'
>> > Makefile:257: recipe for target 'all-recursive' failed
>> > make[1]: *** [all-recursive] Error 1
>> > make[1]: Leaving directory '/home/mritunjay/development/rtems-4.10.2/pc386/i386-rtems/c'
>> > Makefile:275: recipe for target 'all-recursive' failed
>> > make: *** [all-recursive] Error 1"
>> >
>> > I checked that gcc is already installed in /usr/bin/gcc.
>> > So I am not able to figure out what exactly is causing the error.
>> > Please help to figure out what is causing this and how it can be resolved.
>> > I have attached the config log as well.
>> >
>> > Thanks
>> > Mritunjay
>> >
>> >
>> >
>> >
>> >
>> >
>> > On Wed, Jul 1, 2020 at 12:27 AM Mritunjay Sharma <mritunjaysharma394 at gmail.com> wrote:
>> >>
>> >>
>> >> I mistakenly forgot to cc my other mentors.
>> >>
>> >> This is what I responded :
>> >>
>> >>> Hello Heinz,
>> >>>
>> >>> Pardon the mistake I did in haste,
>> >>> as I advised by you I am now building it for RTEMS 4.10 and then I will
>> >>> be reporting here shortly as the build completes.
>> >>>
>> >>> Thanks
>> >>> Mritunjay.
>> >>
>> >>
>> >> I am shortly sending the email for the progress I made after working on above.
>> >> Thanks
>> >> Mritunjay
>> >>
>> >>
>> >>
>> >> On Wed, Jul 1, 2020 at 12:11 AM Heinz Junkes <junkes at fhi-berlin.mpg.de> wrote:
>> >>>
>> >>> Hello, Mritunjay,
>> >>>
>> >>> the epics-base version in github does not work with RTEMS5 It needs my extensions for this.
>> >>> Therefore I suggested that you first build epics7 for e.g. RTEMS 4.10.
>> >>> Then the easiest way is to build epics7 for RTEMS-pc386-qemu. This is fully supported.
>> >>> So you learn how to build EPics and then you can develop a first rsb-set for it.
>> >>> If this works, we will work on RTEMS5 and xilinx-Zynq.
>> >>> Heinz
>> >>>
>> >>> > On 30. Jun 2020, at 20:10, Mritunjay Sharma <mritunjaysharma394 at gmail.com> wrote:
>> >>> >
>> >>> >
>> >>> > Hello everyone,
>> >>> >
>> >>> > While yesterday, I completed the blog for the progress
>> >>> > till date, today I started the coding part.
>> >>> >
>> >>> > The tutorial that Heinz sent me yesterday guided
>> >>> > me to make the following changes:
>> >>> >
>> >>> > 1) epics-base/configure/CONFIG_SITE:
>> >>> > # Which target architectures to cross-compile for.
>> >>> > #  Definitions in configure/os/CONFIG_SITE.<host>.Common
>> >>> > #  may override this setting.
>> >>> > -CROSS_COMPILER_TARGET_ARCHS=
>> >>> > - #CROSS_COMPILER_TARGET_ARCHS=vxWorks-ppc32
>> >>> > + CROSS_COMPILER_TARGET_ARCHS=pc386
>> >>> > +#CROSS_COMPILER_TARGET_ARCHS=RTEMS-xilinx_zynq_a9_qemu
>> >>> >
>> >>> > I did not use xilinx_zynq_a9_qemu for now because I could
>> >>> > not locate CONFIG.Common.RTEMS-xilinx_zynq_a9_qemu
>> >>> > as of now in epics-base/configure/os.
>> >>> >
>> >>> > 2) configure/os/CONFIG_SITE.Common.RTEMS :
>> >>> >
>> >>> > # Where to find RTEMS
>> >>> > #
>> >>> > # APS:
>> >>> > -RTEMS_VERSION = 4.10.2
>> >>> > -RTEMS_BASE = /usr/local/vw/rtems/rtems-$(RTEMS_VERSION)
>> >>> > #RTEMS_VERSION = 4.10.2
>> >>> > #RTEMS_BASE = /usr/local/vw/rtems/rtems-$(RTEMS_VERSION)
>> >>> >
>> >>> > +# FHI:
>> >>> > +RTEMS_SERIES = 5
>> >>> > +RTEMS_VERSION = 5
>> >>> > +RTEMS_BASE = /home/mritunjay/development/rtems/5
>> >>> >
>> >>> > I thought to straightaway move with building it with RTEMS 5
>> >>> > because I have done it earlier for beatnik.
>> >>> >
>> >>> > After this as an experiment, I tried the make command which,
>> >>> > as expected, generated the following error:
>> >>> >
>> >>> > "make[4]: *** No rule to make target '../O.Common/osiFileName.h', needed by 'inc'.  Stop.
>> >>> > make[4]: Leaving directory '/home/mritunjay/development/EPICS/epics-base/modules/libcom/src/O.pc386'
>> >>> > ../../../configure/RULES_ARCHS:58: recipe for target 'install.pc386' failed
>> >>> > make[3]: *** [install.pc386] Error 2
>> >>> > make[3]: Leaving directory '/home/mritunjay/development/EPICS/epics-base/modules/libcom/src'
>> >>> > ../../configure/RULES_DIRS:85: recipe for target 'src.install' failed
>> >>> > make[2]: *** [src.install] Error 2
>> >>> > make[2]: Leaving directory '/home/mritunjay/development/EPICS/epics-base/modules/libcom'
>> >>> > ../configure/RULES_DIRS:85: recipe for target 'libcom.install' failed
>> >>> > make[1]: *** [libcom.install] Error 2
>> >>> > make[1]: Leaving directory '/home/mritunjay/development/EPICS/epics-base/modules'
>> >>> > configure/RULES_DIRS:85: recipe for target 'modules.install' failed
>> >>> > make: *** [modules.install] Error 2
>> >>> > "
>> >>> > I then re-visited to what I did with beatnik and made the following changes to
>> >>> > start with adding support for RTEMS 5:
>> >>> >
>> >>> > diff --git a/configure/CONFIG_COMMON b/configure/CONFIG_COMMON
>> >>> > index 6c0e11e0d..d56802968 100644
>> >>> > --- a/configure/CONFIG_COMMON
>> >>> > +++ b/configure/CONFIG_COMMON
>> >>> > @@ -142,9 +142,10 @@ BUILDLIB_SUFFIX = $(BUILDLIB_SUFFIX_$(SHARED_LIBRARIES))
>> >>> >  #--------------------------------------------------
>> >>> >  # vpath directories
>> >>> >  POSIX_YES = os/posix
>> >>> > +OS_IMPL_DIRS = $(if $(OS_API),os/$(OS_CLASS)-$(OS_API),) os/$(OS_CLASS)
>> >>> >  GENERIC_SRC_DIRS = .. $(SRC_DIRS)
>> >>> >  OS_SRC_DIRS += . $(foreach dir, .. $(SRC_DIRS), \
>> >>> > -       $(addprefix $(dir)/, os/$(OS_CLASS) $(POSIX_$(POSIX)) os/default ))
>> >>> > +       $(addprefix $(dir)/, $(OS_IMPL_DIRS) $(POSIX_$(POSIX)) os/default ))
>> >>> >  CMPLR_SRC_DIRS += . $(foreach dir, .. $(SRC_DIRS), \
>> >>> >         $(addprefix $(dir)/, compiler/$(CMPLR_CLASS) compiler/default ))
>> >>> >  ALL_SRC_DIRS = $(CMPLR_SRC_DIRS) $(OS_SRC_DIRS) $(GENERIC_SRC_DIRS)
>> >>> > diff --git a/configure/CONFIG_SITE b/configure/CONFIG_SITE
>> >>> > index 09b4c1525..f3aa4b3f7 100644
>> >>> > --- a/configure/CONFIG_SITE
>> >>> > +++ b/configure/CONFIG_SITE
>> >>> > @@ -161,7 +161,7 @@ USE_POSIX_THREAD_PRIORITY_SCHEDULING = YES
>> >>> >
>> >>> >  # Site version number, if set will append '-' and this string to the
>> >>> >  #  EPICS version number string that is reported by many tools.
>> >>> > -EPICS_SITE_VERSION =
>> >>> > +EPICS_SITE_VERSION =
>> >>> >
>> >>> >  # For GNU compiler, use pipes rather than temporary files for
>> >>> >  #  communication between the various stages of compilation.
>> >>> > diff --git a/configure/os/CONFIG.Common.RTEMS b/configure/os/CONFIG.Common.RTEMS
>> >>> > index 8425e6ef9..929510d61 100644
>> >>> > --- a/configure/os/CONFIG.Common.RTEMS
>> >>> > +++ b/configure/os/CONFIG.Common.RTEMS
>> >>> > @@ -94,16 +94,28 @@ MODEXT=.obj
>> >>> >  # operating system class (include/os/<os_class>)
>> >>> >  OS_CLASS = RTEMS
>> >>> >
>> >>> > +#--------------------------------------------------
>> >>> > +# operating system API (src/os/<os_class>-<os-api>)
>> >>> > +OS_API_4.7 = kernel
>> >>> > +OS_API_4.8 = kernel
>> >>> > +OS_API_4.9 = kernel
>> >>> > +OS_API_4.10 = kernel
>> >>> > +OS_API = $(firstword $(OS_API_$(RTEMS_SERIES)) posix)
>> >>> > +
>> >>> >  #--------------------------------------------------
>> >>> >  # Operating system flags
>> >>> > -OP_SYS_LDLIBS += -lrtemsCom -lc -lrtemscpu -lCom -lnfs -lm
>> >>> > -OP_SYS_LDFLAGS += $(CPU_CFLAGS) -u Init \
>> >>> > +OP_SYS_LDLIBS += -lrtemsCom -lc -lrtemscpu -lCom -lnfs -lm
>> >>> > +# newest Rtems > 2019 needs this -ltftpfs
>> >>> > +
>> >>> > +OP_SYS_LDFLAGS_posix += -u POSIX_Init
>> >>> > +OP_SYS_LDFLAGS_kernel += $(CPU_CFLAGS) -u Init \
>> >>> >                   $(PROJECT_RELEASE)/lib/no-dpmem.rel \
>> >>> >                   $(PROJECT_RELEASE)/lib/no-mp.rel \
>> >>> >                   $(PROJECT_RELEASE)/lib/no-part.rel \
>> >>> >                   $(PROJECT_RELEASE)/lib/no-signal.rel \
>> >>> >                   $(PROJECT_RELEASE)/lib/no-rtmon.rel
>> >>> >
>> >>> > +OP_SYS_LDFLAGS += $(CPU_FLAGS) $(OP_SYS_LDFLAGS_$(OS_API))
>> >>> >  MOD_SYS_LDFLAGS += $(CPU_CFLAGS) -Wl,-r -nostdlib
>> >>> >
>> >>> >  # Do not link against libraries which are part of the Generic Image
>> >>> > diff --git a/modules/libcom/RTEMS/Makefile b/modules/libcom/RTEMS/Makefile
>> >>> > index b46889db1..cb1a63b97 100644
>> >>> > --- a/modules/libcom/RTEMS/Makefile
>> >>> > +++ b/modules/libcom/RTEMS/Makefile
>> >>> > @@ -11,6 +11,9 @@ TOP = ../../..
>> >>> >  include $(TOP)/configure/CONFIG
>> >>> >  include $(TOP)/configure/CONFIG_LIBCOM_VERSION
>> >>> >
>> >>> > +#for checking
>> >>> > +SRC_DIRS += ../$(OS_API)
>> >>> > +
>> >>> >  PERL_SCRIPTS += epicsMakeMemFs.pl
>> >>> >
>> >>> >  INC += epicsRtemsInitHooks.h
>> >>> > (END)
>> >>> >
>> >>> > I will start with further changes tomorrow. Please find the changes pushed
>> >>> > here: https://github.com/epics-base/epics-base/compare/7.0...mritunjaysharma394:GSoC_pc-386
>> >>> >
>> >>> > I will be pleased to have the feedback and if I am on the correct course now.
>> >>> >
>> >>> > I will also like to inform that I have filled the GSoC Phase 1 Evaluation form and I
>> >>> > will request all my mentors to please feel free to fill the form before the deadline
>> >>> > and I hope that from now I will not disappoint with my progress.
>> >>> >
>> >>> > It is my bad that I still have not  been able to reach out to one more
>> >>> > mentor Pavel Pisa. Please if possible share the email id of Pavel and cc
>> >>> > Pavel in the replies to the email so that Pavel s aware of the progress and I
>> >>> > can apologise for my inability to connect with Pavel earlier.
>> >>> >
>> >>> > Thanks,
>> >>> > Mritunjay.
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>> >
>> >>>

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