Mity CPU Platforms » MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P

Nathan Wright wrote:

Hi guys,

We already have pru-icss on target by including it in our base image recipe.
[...]

When we build meta-toolchain-arago-tisdk however, the SDK does not include all the needed support files. It has the compiler at sysroots/x86_64-arago-linux/usr/share/ti/cgt-pru, but the supporting files for compiling your own program (found in previous SDKs at .../example-applications/pru-icss-*.*.*) are not there. Searching all the sources, the only recipe that fetches from https://git.ti.com/cgit/pru-software-support-package is pru-icss.

Are you trying to build code for the PRU or code for the ARM to talk to the PRU?

We are trying to build our own code for the PRU.

Our CMakeLists looks like this...

# variables for the pru build
set (PRU_CGT ${HOST_SYSROOT}/usr/share/ti/cgt-pru)
set (PRU_CGT_BIN ${PRU_CGT}/bin)
set (PRU_CGT_INC ${PRU_CGT}/include)
set (PRU_CGT_LIB ${PRU_CGT}/lib)

set (PRU_RPMSG ${SDK_PATH}/example-applications/pru-icss-5.6.0)  <--- This is missing from the SDK
set (PRU_RPMSG_INC ${PRU_RPMSG}/include)

add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/pr1_pru0.o" 
    COMMAND "${PRU_CGT_BIN}/clpru" 
        "--include_path=${PRU_CGT_INC}" 
        "--include_path=${PRU_RPMSG_INC}" 
        "--include_path=${PRU_RPMSG_INC}/am572x_2_0" 
        "--include_path=../../include" 
        "-v3" 
        "-O4" 
        "-mf" 
        "--display_error_number" 
        "--endian=little" 
        "--hardware_mac=on" 
        "--obj_directory=${CMAKE_CURRENT_BINARY_DIR}" 
        "--pp_directory=${CMAKE_CURRENT_BINARY_DIR}" 
        "-ppd" 
        "-ppa" 
        "-fe" 
        "${CMAKE_CURRENT_BINARY_DIR}/pr1_pru0.o" 
        "pr1_pru0.c" 
    DEPENDS
        ${CMAKE_CURRENT_SOURCE_DIR}/pr1_pru0.c
    WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" 
    VERBATIM
    COMMENT "Creating pr1_pru0.o" 
)

It doesn't have to be 5.6.0. I think the layers use 6.3.0, which is probably fine. There are include files in there that are needed to compile.

I am simply looking for how to include the support package in to the sdk when I build it.

I am currently trying this, but I am just blindly throwing things at the wall.

meta-toolchain-arago-tisdk.bbappend...

TOOLCHAIN_HOST_TASK:append += " pru-icss-dev" 

Ah so I think the way TI has their recipes setup, you need to build the tisdk-core-bundle recipe if you want the installer that TI produces that contains everything.
https://layers.openembedded.org/layerindex/recipe/405899/

Personally I'd recommend checking out the pru examples you need yourself and adding them to your code repo so your only external dependencies is the stuff included in the sdk toolchain build.

These are the steps I took to figure that out but its all a bit convoluted...

$ ag example-applications
meta-arago/meta-arago-extras/recipes-graphics/glsdk-example-apps/glsdk-example-apps.bb
14:SRC_URI = "git://git.ti.com/git/glsdk/example-applications.git;protocol=https;branch=master \

meta-tisdk/conf/distro/include/arago-source-ipk.inc
44:SRCIPK_INSTALL_DIR:pn-arm-benchmarks ?= "example-applications/${PN}-${PV}" 
47:SRCIPK_INSTALL_DIR:pn-oprofile-example ?= "example-applications/${PN}" 
50:SRCIPK_INSTALL_DIR:pn-pdm-anomaly-detection ?= "example-applications/${PN}-${PV}" 
88:SRCIPK_INSTALL_DIR:pn-pru-icss ?= "example-applications/${PN}-${PV}" 
91:SRCIPK_INSTALL_DIR:pn-mmwavegesture-hmi ?= "example-applications/${PN}-${PV}" 
94:SRCIPK_INSTALL_DIR:pn-evse-hmi ?= "example-applications/${PN}-${PV}" 
97:SRCIPK_INSTALL_DIR:pn-protection-relays-hmi ?= "example-applications/${PN}-${PV}" 
100:SRCIPK_INSTALL_DIR_pn-omapconf ?= "example-applications/${PN}-${PV}" 

meta-tisdk/recipes-demos/pru-adc/pru-adc_git.bb
52:SRCIPK_INSTALL_DIR = "example-applications/${PN}-${PV}"    <----------
==================================
$ ag SRCIPK_INSTALL_DIR
meta-tisdk/classes/sourceipk.bbclass
12:#   - SRCIPK_INSTALL_DIR    = This variable indicates the directory to install
24:# By setting the SRCIPK_INSTALL_DIR this default can be changed to any
48:SRCIPK_INSTALL_DIR ?= "/usr/src/${PN}-src" 
127:    cd ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}
140:    rm -rf ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/.git
143:    mv $gitshallowclone/.git ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/
162:    cd ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}
244:        mkdir -p ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}
249:            tar -C ${SRCIPK_SRC_DIR} -cO $excludes . | tar -C ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR} -xpf -
253:        if [ -e ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/patches ]
255:            mv ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/patches ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/patches-links
256:            cp -rL ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/patches-links ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/patches
257:            rm -rf ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/patches-links
262:            sourceipk_create_readme ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/
263:            cp ${FILE} ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/
296:        d.setVar('FILES_%s-src' % (pn), '${SRCIPK_INSTALL_DIR}')
301:    install -d ${PKGDEST}/${PN}-src/${SRCIPK_INSTALL_DIR}
303:        ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/. \
304:        ${PKGDEST}/${PN}-src/${SRCIPK_INSTALL_DIR}

meta-tisdk/conf/distro/include/arago-source-ipk.inc    <-------------
26:#       SRCIPK_INSTALL_DIR:pn-<pkg> = "<install dir>" 
28:#       SRCIPK_INSTALL_DIR:pn-u-boot = "board-support/u-boot-source" 
44:SRCIPK_INSTALL_DIR:pn-arm-benchmarks ?= "example-applications/${PN}-${PV}" 
47:SRCIPK_INSTALL_DIR:pn-oprofile-example ?= "example-applications/${PN}" 
50:SRCIPK_INSTALL_DIR:pn-pdm-anomaly-detection ?= "example-applications/${PN}-${PV}" 
53:SRCIPK_INSTALL_DIR:pn-u-boot-ti-staging ?= "${@oe.utils.conditional("TI_EXTRAS", "tie-jailhouse", "board-support/u-boot-extras-jailhouse-${PV}${UBOOT_LOCALVERSION}", "board-support/ti-u-boot-${PV}${UBOOT_LOCALVERSION}", d)}" 
58:SRCIPK_INSTALL_DIR:pn-linux-ti-staging ?= "${@oe.utils.conditional("TI_EXTRAS", "tie-jailhouse", "board-support/linux-extras-${PV}${KERNEL_LOCALVERSION}", "board-support/ti-linux-kernel-${PV}${KERNEL_LOCALVERSION}", d)}" 
63:SRCIPK_INSTALL_DIR:pn-linux-ti-staging-rt ?= "${@oe.utils.conditional("TI_EXTRAS", "tie-jailhouse", "board-support/linux-extras-${PV}${KERNEL_LOCALVERSION}", "board-support/ti-linux-kernel-${PV}${KERNEL_LOCALVERSION}", d)}" 
68:SRCIPK_INSTALL_DIR:pn-cryptodev-module ?= "board-support/extra-drivers/cryptodev-module-${PV}" 
72:SRCIPK_INSTALL_DIR:pn-ti-img-rogue-driver ?= "board-support/extra-drivers/${PN}-${PV}" 
76:SRCIPK_INSTALL_DIR:pn-jailhouse ?= "board-support/extra-drivers/${PN}-${PV}" 
80:SRCIPK_INSTALL_DIR:pn-optee-os ?= "board-support/${PN}-${PV}" 
84:SRCIPK_INSTALL_DIR:pn-trusted-firmware-a ?= "board-support/${PN}-${PV}" 
88:SRCIPK_INSTALL_DIR:pn-pru-icss ?= "example-applications/${PN}-${PV}" 
91:SRCIPK_INSTALL_DIR:pn-mmwavegesture-hmi ?= "example-applications/${PN}-${PV}" 
94:SRCIPK_INSTALL_DIR:pn-evse-hmi ?= "example-applications/${PN}-${PV}" 
97:SRCIPK_INSTALL_DIR:pn-protection-relays-hmi ?= "example-applications/${PN}-${PV}" 
100:SRCIPK_INSTALL_DIR_pn-omapconf ?= "example-applications/${PN}-${PV}" 

meta-tisdk/recipes-demos/opcua-server/opcua-server_git.bb
16:SRCIPK_INSTALL_DIR = "examples/opc-ua-server" 

meta-tisdk/recipes-demos/pru-adc/pru-adc_git.bb
52:SRCIPK_INSTALL_DIR = "example-applications/${PN}-${PV}" 

meta-edgeai/conf/distro/include/edgeai-source-ipk.inc
5:SRCIPK_INSTALL_DIR:pn-edgeai-apps-utils ?= "edgeai-app-stack/${PN}" 
12:SRCIPK_INSTALL_DIR:pn-edgeai-dl-inferer ?= "edgeai-app-stack/${PN}" 
19:SRCIPK_INSTALL_DIR:pn-edgeai-gst-apps ?= "edgeai-app-stack/${PN}" 
26:SRCIPK_INSTALL_DIR:pn-edgeai-gst-plugins ?= "edgeai-app-stack/${PN}" 
33:SRCIPK_INSTALL_DIR:pn-edgeai-tiovx-kernels ?= "edgeai-app-stack/${PN}" 
40:SRCIPK_INSTALL_DIR:pn-edgeai-tiovx-modules ?= "edgeai-app-stack/${PN}" 
==============================
$ ag sourceipk.bbclass
meta-tisdk/classes/sourceipk.bbclass
1:# sourceipk.bbclass enables the creation of an ipk file that contains the
============================
$ ag arago-source-ipk.inc
meta-tisdk/conf/layer.conf
18:require conf/distro/include/arago-source-ipk.inc

===================================
$ ag sourceipk
meta-tisdk/conf/distro/include/arago-source-ipk.inc
37:INHERIT += "sourceipk" 
39:# Disable including README and recipe files in sourceipks for SDK builds.

meta-tisdk/classes/sourceipk.bbclass
1:# sourceipk.bbclass enables the creation of an ipk file that contains the
78:# the sourceipk
186:                # sourceipk more than once.
217:sourceipk_create_readme() {
240:sourceipk_do_create_srcipk() {
262:            sourceipk_create_readme ${SRCIPK_STAGING_DIR}/${SRCIPK_INSTALL_DIR}/
288:# Do not perform any QA checks on sourceipk packages

meta-tisdk/recipes-core/images/tisdk-core-bundle.bbappend      <--------
17:    packagegroup-arago-tisdk-sourceipks-sdk-host \

Hi Jon,

I guess I need more explicit instructions.

What exactly should I do with "tisdk-core-bundle"?

I have tried adding it a couple variables with seemingly no effect.

Thanks,
Nathan

tisdk-core-bundle is another recipe of TI's which bundles a bunch of stuff into a single installer. You can build it via bitbake. Though I think its a bit overkill. It will likely trigger building of a lot of different recipes and images which you don't care about.

meta-arago/meta-arago-distro/recipes-core/images/tisdk-core-bundle.bb

Ok, so that brings me back to my original question.

I see the files I need at...

pokyuser@b46b6b5ada2e:/work/am57xx-evm-ep00075/build$ ls -l ./arago-tmp-default-glibc/sysroots-components/am57xx_evm_ep00075/pru-icss/usr/
total 8
drwxr-xr-x 12 pokyuser pokyuser 4096 Feb 19 21:37 include
drwxr-xr-x  2 pokyuser pokyuser 4096 Feb 19 21:37 lib

What are the steps to include that tree in to the SDK installer?

I figured it out...

nwright@nwright-ubuntu-24-lts:~/projects/oe-layersetup/sources/meta-adbsg$ cat recipes-core/meta/meta-toolchain-arago-tisdk.bbappend 
TOOLCHAIN_TARGET_TASK:append = " \
    pru-icss-dev \
    pru-icss-staticdev \
" 

Thanks

Okay glad it works. Strange that they would put the include files in the -staticdev package. I wonder if that's a bug on TI's part.

I guess it is not that strange since the PRU code can't do stuff dynamically. I think it is all statically linked builds.

Hilariously though, it does not play well with the rest of the include space. The pru compiler starts acting all gnu-y if they co-habitate.

So I had to isolate them.

nwright@nwright-ubuntu-24-lts:~/projects/oe-layersetup/sources/meta-adbsg$ cat recipes-bsp/pru/pru-icss_%.bbappend 
do_install:append() {
    # The header files can't be mixed in with all the linux
    # header files because the pru compiler gets confused and 
    # starts trying to include soft-stubs.h.
    #
    # So, we will move the headers in to their own folder
    install -d ${D}${includedir}/pru
    cd ${D}${includedir}
    mv pru_* rsc_types.h am* pru/
}

# Add to package revision to indicate it has been changed
PR:append:mitysom-am62x-ep00119 = "_mitysom-am62x-ep00119_0" 
PR:append:am57xx-evm-ep00075 = "_am57xx-evm-ep00075_0"