AM3352: Enable GCC Plugin for meta-toolchain-arago-tisdkin SDK 09.01

Pratik Pingate

Part Number: AM3352

Tool/software:

Hello,

I have compiled the "meta-toolchain-arago-tisdk" and successfully generated its binaries. However, I am encountering an error related to GCC plugins while trying to compile an out-of-tree kernel driver.

einfochips@VM2568:~/work/WiFi/v6.1.97-backports$ make KLIB=$MY_KERNEL KLIB_BUILD=$MY_KERNEL ARCH=arm CROSS_COMPILE=/home/einfochips/work/toolchain_tisdk/sysroots/x86_64-arago-linux/usr/bin/arm-oe-linux-gnueabi/arm-oe-linux-gnueabi- modules
CC [M] /home/einfochips/work/WiFi/v6.1.97-backports/compat/main.o
cc1: error: cannot load plugin ./scripts/gcc-plugins/arm_ssp_per_task_plugin.so: ./scripts/gcc-plugins/arm_ssp_per_task_plugin.so: undefined symbol: _ZN8opt_pass14set_pass_paramEjb

Additionally, whenever I try to cross-compile hello_world.c, it gives the error: "fatal error: stdio.h: No such file or directory."

Could you please guide me on how to resolve this issue or how to include GCC plugins and standard header files in the generated toolchain binary?

Best regards,
Pratik

13 days ago

0 Andreas Dannenberg 12 days ago

TI__Guru 62597 points

Hi Pratik,

Pratik Pingate said:
Additionally, whenever I try to cross-compile hello_world.c, it gives the error: "fatal error: stdio.h: No such file or directory."

Looks like you are missing the specification of the target sysroot during compile. This is a known documentation issue with SDK v9.1, that has since been fixed in the just-released AM335x SDK v9.3, see https://software-dl.ti.com/processor-sdk-linux/esd/AM335X/09_03_05_02/exports/docs/linux/Overview/GCC_ToolChain.html#linux-devkit

(Note that the updated instructions may be specific to how SDK v9.3 is setup/configured. For a more generic approach that involves explicitly specifying $CFLAGS, also see here: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1344666/am4378-linux-devkit-compile-code-failed-for-ti-processor-sdk-documents-need-to-be-updated/5128591#5128591).

Pratik Pingate said:

einfochips@VM2568:~/work/WiFi/v6.1.97-backports$ make KLIB=$MY_KERNEL KLIB_BUILD=$MY_KERNEL ARCH=arm CROSS_COMPILE=/home/einfochips/work/toolchain_tisdk/sysroots/x86_64-arago-linux/usr/bin/arm-oe-linux-gnueabi/arm-oe-linux-gnueabi- modules
CC [M] /home/einfochips/work/WiFi/v6.1.97-backports/compat/main.o
cc1: error: cannot load plugin ./scripts/gcc-plugins/arm_ssp_per_task_plugin.so: ./scripts/gcc-plugins/arm_ssp_per_task_plugin.so: undefined symbol: _ZN8opt_pass14set_pass_paramEjb

Looks like this is a very specific build issue, with the build depending on certain kernel Kconfig options being turned on (CONFIG_GCC_PLUGIN*). Can you review https://www.kernel.org/doc/Documentation/kbuild/gcc-plugins.rst for more information on how to enable those, and debug related issues.

Regards, Andreas

0 Pratik Pingate 7 days ago in reply to Andreas Dannenberg

Prodigy 40 points

Hi Andreas,

I am able to compile the hello.c

einfochips@VM2568:~/toolchain$ echo $CC

arm-oe-linux-gnueabi-gcc -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=hard --sysroot=/home/einfochips/toolchain/sysroots/armv7at2hf-neon-oe-linux-gnueabi

einfochips@VM2568:~/toolchain$ ${CC} hello.c -o hello -mfpu=neon -mfloat-abi=hard

einfochips@VM2568:~/toolchain$ file hello

hello: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, BuildID[sha1]=feb9148397bc187d400fdc797144e6719f59c361, for GNU/Linux 3.2.0, with debug_info, not stripped

einfochips@VM2568:~/toolchain$

I have followed the steps mentioned in https://www.kernel.org/doc/Documentation/kbuild/gcc-plugins.rst but didn't succeed. Getting same error for GCC Plugins.

0 Andreas Dannenberg 7 days ago in reply to Pratik Pingate

TI__Guru 62597 points

Looks like this issue here: https://stackoverflow.com/questions/75775123/error-arm-ssp-per-task-plugin-so-undefined-symbol-z9rtx-alloc8rtx-code

Regards, Andreas

Processors

Processors forum

AM3352: Enable GCC Plugin for meta-toolchain-arago-tisdkin SDK 09.01