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

Mritunjay Sharma mritunjaysharma394 at gmail.com
Wed Jul 1 03:42:33 UTC 2020 

Hi Gedare,

Thank you for the quick response, I tried using --target=i386-rtems4.10,
which again
gave me the same error.

"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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