PROCESSOR-SDK-AM335X: Building Linux kernel via SDK's makefile fails

Michael Nemanov

Hi,

I've tried building the Linux kernel in PSDK 09.01.00.001 using the built-in makefile and got the following warnings and failures:

During the DTB compilation phase, most of the sources emit this warning:

> make linux HOSTCC=gcc-9 HOSTCXX=g++-9
=====================================
Building the Linux Kernel DTBs
=====================================
make -C /home/a0389739/devroot/psdk0902/board-support/ti-linux-kernel* ARCH=arm CROSS_COMPILE=/home/a0389739/devroot/psdk0902/external-toolchain-dir/arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf- multi_v7_defconfig ti_multi_v7_prune.config no_smp.config 
make[1]: Entering directory '/home/a0389739/devroot/psdk0902/board-support/ti-linux-kernel-6.1.46+gitAUTOINC+1d4b5da681-g1d4b5da681'
  HOSTCC  scripts/basic/fixdep
...
...
...
  HOSTLD  scripts/dtc/fdtoverlay
  HOSTLD  scripts/dtc/dtc
  UPD     include/config/kernel.release
  DTC     arch/arm/boot/dts/am335x-netcom-plus-2xx.dtb
arch/arm/boot/dts/am33xx.dtsi:164.10-167.6: Warning (unit_address_vs_reg): /target-module@4b000000/target-module@140000/pmu@0: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:317.33-321.8: Warning (unit_address_vs_reg): /ocp/interconnect@44c00000/segment@200000/target-module@10000/scm@0/scm_conf@0/phy-gmii-sel: node has a reg or ranges property, but no unit name
arch/arm/boot/dts/am33xx-l4.dtsi:2025.10-2029.6: Warning (unit_address_vs_reg): /ocp/interconnect@48000000/segment@200000/target-module@0/mpu@0: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:758.27-762.7: Warning (unit_address_vs_reg): /ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0/slave@200: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:764.27-768.7: Warning (unit_address_vs_reg): /ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0/slave@300: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:111.25-114.7: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@0/prcm@0/clocks: missing or empty reg/ranges property
  also defined at arch/arm/boot/dts/am33xx-clocks.dtsi:138.14-618.3
arch/arm/boot/dts/am33xx-l4.dtsi:116.37-117.7: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@0/prcm@0/clockdomains: missing or empty reg/ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:317.33-321.8: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@10000/scm@0/scm_conf@0/phy-gmii-sel: simple-bus unit address format error, expected "650"
arch/arm/boot/dts/am33xx-l4.dtsi:323.25-326.8: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@10000/scm@0/scm_conf@0/clocks: missing or empty reg/ranges property
  also defined at arch/arm/boot/dts/am33xx-clocks.dtsi:7.13-137.3
arch/arm/boot/dts/am33xx-l4.dtsi:352.36-353.7: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@10000/scm@0/clockdomains: missing or empty reg/ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:961.12-991.4: Warning (simple_bus_reg): /ocp/interconnect@4b140000/segment@0: simple-bus unit address format error, expected "4800"
arch/arm/boot/dts/am33xx-l4.dtsi:720.20-769.6: Warning (unique_unit_address): /ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0: duplicate unit-address (also used in node /ocp/interconnect@4a000000/segment@0/target-module@100000/switch@0)
make[1]: Leaving directory '/home/a0389739/devroot/psdk0902/board-support/ti-linux-kernel-6.1.46+gitAUTOINC+1d4b5da681-g1d4b5da681'
make[1]: Entering directory '/home/a0389739/devroot/psdk0902/board-support/ti-linux-kernel-6.1.46+gitAUTOINC+1d4b5da681-g1d4b5da681'
  DTC     arch/arm/boot/dts/am335x-sancloud-bbe-extended-wifi.dtb
arch/arm/boot/dts/am33xx.dtsi:164.10-167.6: Warning (unit_address_vs_reg): /target-module@4b000000/target-module@140000/pmu@0: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:317.33-321.8: Warning (unit_address_vs_reg): /ocp/interconnect@44c00000/segment@200000/target-module@10000/scm@0/scm_conf@0/phy-gmii-sel: node has a reg or ranges property, but no unit name
arch/arm/boot/dts/am33xx-l4.dtsi:2025.10-2029.6: Warning (unit_address_vs_reg): /ocp/interconnect@48000000/segment@200000/target-module@0/mpu@0: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:758.27-762.7: Warning (unit_address_vs_reg): /ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0/slave@200: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:764.27-768.7: Warning (unit_address_vs_reg): /ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0/slave@300: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am335x-sancloud-bbe-extended-wifi.dts:21.32-27.4: Warning (unit_address_vs_reg): /fixedregulator@2: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:111.25-114.7: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@0/prcm@0/clocks: missing or empty reg/ranges property
  also defined at arch/arm/boot/dts/am33xx-clocks.dtsi:138.14-618.3
arch/arm/boot/dts/am33xx-l4.dtsi:116.37-117.7: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@0/prcm@0/clockdomains: missing or empty reg/ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:317.33-321.8: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@10000/scm@0/scm_conf@0/phy-gmii-sel: simple-bus unit address format error, expected "650"
arch/arm/boot/dts/am33xx-l4.dtsi:323.25-326.8: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@10000/scm@0/scm_conf@0/clocks: missing or empty reg/ranges property
  also defined at arch/arm/boot/dts/am33xx-clocks.dtsi:7.13-137.3
arch/arm/boot/dts/am33xx-l4.dtsi:352.36-353.7: Warning (simple_bus_reg): /ocp/interconnect@44c00000/segment@200000/target-module@10000/scm@0/clockdomains: missing or empty reg/ranges property
arch/arm/boot/dts/am33xx-l4.dtsi:961.12-991.4: Warning (simple_bus_reg): /ocp/interconnect@4b140000/segment@0: simple-bus unit address format error, expected "4800"
arch/arm/boot/dts/am33xx-l4.dtsi:720.20-769.6: Warning (unique_unit_address): /ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0: duplicate unit-address (also used in node /ocp/interconnect@4a000000/segment@0/target-module@100000/switch@0)
make[1]: Leaving directory '/home/a0389739/devroot/psdk0902/board-support/ti-linux-kernel-6.1.46+gitAUTOINC+1d4b5da681-g1d4b5da681'
make[1]: Entering directory '/home/a0389739/devroot/psdk0902/board-support/ti-linux-kernel-6.1.46+gitAUTOINC+1d4b5da681-g1d4b5da681'
^Cmake[1]: *** [Makefile:1266: include/config/kernel.release] Interrupt
make: *** [makerules/Makefile_linux-dtbs:11: linux-dtbs] Interrupt

During the zImage compilation phase there are actual errors:

> make linux HOSTCC=gcc-9 HOSTCXX=g++-9
=================================
Building the Linux Kernel
=================================
...
...
...
  HOSTLD  scripts/dtc/fdtoverlay
  HOSTLD  scripts/dtc/dtc
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/sorttable
  HOSTCC  scripts/asn1_compiler
  HOSTCXX scripts/gcc-plugins/arm_ssp_per_task_plugin.so
In file included from /home/a0389739/devroot/psdk0902/external-toolchain-dir/arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-linux-gnueabihf_org/bin/../lib/gcc/arm-none-linux-gnueabihf/11.3.1/plugin/include/gcc-plugin.h:28,
                 from scripts/gcc-plugins/gcc-common.h:7,
                 from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:
/home/a0389739/devroot/psdk0902/external-toolchain-dir/arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-linux-gnueabihf_org/bin/../lib/gcc/arm-none-linux-gnueabihf/11.3.1/plugin/include/system.h:698:10: fatal error: gmp.h: No such file or directory
  698 | #include <gmp.h>
      |          ^~~~~~~
compilation terminated.
make[3]: *** [scripts/gcc-plugins/Makefile:54: scripts/gcc-plugins/arm_ssp_per_task_plugin.so] Error 1
make[2]: *** [scripts/Makefile.build:502: scripts/gcc-plugins] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [Makefile:1273: scripts] Error 2
make[1]: *** Waiting for unfinished jobs....
  UPD     include/config/kernel.release
make[1]: Leaving directory '/home/a0389739/devroot/psdk0902/board-support/ti-linux-kernel-6.1.46+gitAUTOINC+1d4b5da681-g1d4b5da681'
make: *** [makerules/Makefile_linux:9: linux] Error 2

Updating the toolchain in external-toolchain-dir/arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-linux-gnueabihf to arm-gnu-toolchain-12.3.rel1-x86_64-arm-none-linux-gnueabihf allows zImage to build successfully but the DTB warning persists, not sure what to make of it.

The same steps worked as expected in SDK 8, am I missing something?

Thanks and best regards,
Michael.

1 month ago

0 Hong Guan64 1 month ago

TI__Guru 54515 points

Please expect delayed response on your question due to our domain expert is out of office this week.

+1 Bin Liu 1 month ago

TI__Guru*** 125756 points

HI MIchael,

> make linux HOSTCC=gcc-9 HOSTCXX=g++-9

To build Linux kernel in the SDK, please use command 'make linux' at the top level of the SDK installation directory.

Please refer to the following documentation for compiling components in the SDK.

https://software-dl.ti.com/processor-sdk-linux/esd/AM335X/09_01_00_001/exports/docs/linux/Overview/Top_Level_Makefile.html

0 Michael Nemanov 1 month ago in reply to Bin Liu

TI__Prodigy 20 points

Hi Bin,

On my machine I have several GCC versions one being very old (4.8) so I had to explicitly specify the host GCC/G++ compilers. I've tried on another machine as well and running make linux gives the same errors and warnings.

Best regards,
Michael.

0 Bin Liu 1 month ago in reply to Michael Nemanov

TI__Guru*** 125756 points

Hi Michael,

Please don't set the toolchain path in $PATH env. When running command such as 'make linux' in the SDK top level directory, Makefile invokes Rules.make which specifies the toolchain provided in the SDK.

+1 Bin Liu 1 month ago in reply to Bin Liu

TI__Guru*** 125756 points

698 | #include <gmp.h>
| ^~~~~~~
compilation terminated.

For this error, please try to install the following packages on Ubuntu 22.04.

$ sudo apt install libgmp3-dev libmpc-dev

0 Michael Nemanov 1 month ago in reply to Bin Liu

TI__Prodigy 20 points

Hi Bin,

I was only setting the GCC toolchain used for host-side tools generation (HOSTCC, HOSTCXX). I did not saw it being specified and indeed my default GCC was selected which was pretty old.

0 Michael Nemanov 1 month ago in reply to Bin Liu

TI__Prodigy 20 points

Thank you!
This resolved the problem.

0 Xavier Ramon Vilamu 18 days ago

Prodigy 60 points

Hello,

I have had the same problem. Whether I build the DTS file directly from the /board-support/ti-linux-kernel-6.1.46+gitAUTOINC+ccf548983b-gccf548983b folder or run 'make all' or 'make linux' in the root of the sdk.

When I built again, the warnings don't appear. Is the first compilation well or do I do a second compilation of the DTB?

Thanks,

0 Bin Liu 17 days ago in reply to Xavier Ramon Vilamu

TI__Guru*** 125756 points

Hi Xavier,

Your issue doesn't look to be the same. Please create a new E2E thread for your issue with details or console logs.

Processors

Processors forum

PROCESSOR-SDK-AM335X: Building Linux kernel via SDK's makefile fails