AM5749: makefile:54: recipe for target 'build-api' failed

Ok so here's the update. I permanently changed my PATH as:

$ gedit ~/.profile

And then, I sourced this file using 

$ source ~/.profile

So, the actual problem got resolved but this is what I face now: 

I tried searching for the "features.h" file in the SDK folder and found many of them... I added the one in "...usr/include" to the environment but still to no good. 

please help

Hi Prashant, is an option for you build TIDL-API on target (AM57x)?. In case, this is an option for you let me share some steps that worked for me in the pass

1. Clone tidl-api inside AM57x /home/root/git_tidl_api

git clone https://bitbucket.itg.ti.com/scm/mctools/tidl-api.git

1. Export some paths

export TIDL_API_DIR=/home/root/git_tidl_api/tidl-api/tidl_api

export LD_LIBRARY_PATH=${TIDL_API_DIR}

1. Build / run (below is for a particular example in one of the git branches.. but should work for the  building the lib)

root@am57xx-evm:~/git_tidl_api/tidl-api/examples/mobilenet_subgraph# make clean

root@am57xx-evm:~/git_tidl_api/tidl-api/examples/mobilenet_subgraph# make

root@am57xx-evm:~/git_tidl_api/tidl-api/examples/mobilenet_subgraph# ./mobilenet_subgraph

1. For enabling dbg

Export TIDL_SUBGRAPH_TRACE=1

Hope this helps,

Paula

Hi Paula Carrillo. Thanks for the reply but I am building it on my x86 ubuntu system... and I fear this is not what I need

Prashant, in your Ubuntu are you cross-compiling or building for native Linux?. I believe you are cross-compiling as you setup TARGET_ROOT, however, I am not sure you are using the correct prefix

TARGET_ROOTDIR=/home/pradan/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/bin

from Makefile I see it is suggested "armv7ahf-neon-linux-gnueabi"

thank you,

Paula

I am trying to build it... to test model porting using TIDL. (I also aim to use the viewer to view the equivalent model).

this is what I see in the makefile

# makefile for building from the tidl-api git repo
# Cross-compilation requires TARGET_ROOTDIR to be set.
# E.g.
# PSDK_LINUX=<path to Processor Linux SDK install>
# TARGET_ROOTDIR=ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7ahf-neon-linux-gnueabi

I used the prefix from here. Am I wrong ?

Hey Paula. thanks for the follow up. I am on it and will let you know the progress soon. 

P.S. Prior to the TIDL make, I am setting up the SDK installation as given here: http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Overview/Download_and_Install_the_SDK.html

Am I doing it right ?

Hi Prashant, yes, it also what I did.

thank you,

Paula

Hey Paula,

I completed the SDK setup mentioned in the link below. AND shown below 

software-dl.ti.com/.../Overview_Building_the_SDK.html  Is it necessary ? Also, I tried making the TIDL API midway this and the problem still persisted. 

$ git clone git://arago-project.org/git/projects/oe-layersetup.git tisdk
$ cd tisdk
$ ./oe-layertool-setup.sh -f configs/processor-sdk/processor-sdk-<version>-config.txt
$ cd build
$ . conf/setenv
$ export TOOLCHAIN_PATH_ARMV7=$HOME/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf
$ export TOOLCHAIN_PATH_ARMV8=$HOME/gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu  
# EXCEPT FOR THIS STEP             
$ MACHINE=am57xx-evm bitbake arago-base-tisdk-image   

Prashanth,

Please ignore the step that you are facing a problem and just try to follow Paula's suggestion without this step.

Regards

Karthik

Hey Paula Carrillo I wasn't sure if I correctly installed the SDK, so I opened another thread here https://e2e.ti.com/support/processors/f/791/p/896178/3313366#3313366. This is the update:

I executed the `make` command while building the SDK, as mentioned here: http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Overview/Top_Level_Makefile.html. Now, I see the following directory built: example_applications... along with some others. 

Inside which, I even see "tidl-examples-1.4.0" folder. I thought that this saves the need to setup TIDL API manually, but when I try to run the executables already built inside any example, it shows the following error:

pradan@pradan-HP-15-Notebook-PC:~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/example-applications/tidl-examples-1.4.0/ssd_multibox$ ./ssd_multibox
bash: ./ssd_multibox: cannot execute binary file: Exec format error

After this, I again tried installing the TIDL using your suggestio. Here's the persistent error I am facing: 

pradan@pradan-HP-15-Notebook-PC:~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/tidl$ export PSDK_LINUX="~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81"
pradan@pradan-HP-15-Notebook-PC:~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/tidl$ export TARGET_ROOTDIR="~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi"
pradan@pradan-HP-15-Notebook-PC:~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/tidl$ export HOSR_ROOTDIR="~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/x86_64-arago-linux"
pradan@pradan-HP-15-Notebook-PC:~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/tidl$ make build-api
make -C tidl_api
make[1]: Entering directory '/home/pradan/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/tidl/tidl_api'
Compiling src/ocl_device.cpp ...
~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-g++ -c "--sysroot=~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi" -I~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include -I~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include -O3 -std=c++11 -Wall -Werror -Wno-error=ignored-attributes -fPIC -I~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/usr/share/ti/opencl -I~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/usr/share/ti/opencl -Isrc -Iinc -D_BUILD_VER=01.05.01 -D_BUILD_SHA=4b801ad src/ocl_device.cpp -o obj/ocl_device.o
In file included from /home/pradan/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/c++/8.3.0/arm-linux-gnueabihf/bits/c++config.h:508,
                 from /home/pradan/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/c++/8.3.0/cstdlib:41,
                 from src/ocl_device.cpp:30:
/home/pradan/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/c++/8.3.0/arm-linux-gnueabihf/bits/os_defines.h:39:10: fatal error: features.h: No such file or directory
 #include <features.h>
          ^~~~~~~~~~~~
compilation terminated.
Makefile:92: recipe for target 'obj/ocl_device.o' failed
make[1]: *** [obj/ocl_device.o] Error 1
make[1]: Leaving directory '/home/pradan/ti-processor-sdk-linux-am57xx-eppradan@pradan-HP-15-Notebook-PC:~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81/tidl$ 

What am I doing wrong ?

Hi Prashant, to your questions:

1)  if building rebuilding SDK is necessary, Answer, as pointed out by Karthik is not. In my test, I just downloaded/installed latest Linux PSDK from ti.com... Rebuilding the SDK could be challenging the first time, specially if you are behind proxy settings in your network.. So, I would suggest only do it if you really need it.

2) ./ssd_multibox: cannot execute binary file: Exec format error --> Most likely this binary was crosscompiled for ARM. My guess is that you get it from Linux PSDK pre-build package. but let me know if I am wrong. And if so, from where this binary comes.

Note: Even if you succeed on building tidl-api and the examples, I just checked Makefile from GIT TIDL_API /tidl-api/examples/ssd_multibox and it uses for TIDL_API_DIR = ${TARGET_ROOTDIR}/usr/share/ti/tidl/tidl_api.. so I don't think you can compiled ssd_multibox demo for x86.. well maybe if you modify makefiles and uses tidl_api.a library build for x86 you could.. In summary it could be a way but probably not that straight forward.

For your background, we typically start developing on x86, but for our releases not always those test environments and makefiles get carry. After releasing to Linux PSDK in ti.com most of the testing (if not all) is done on the boards..  

I will check with the experts to see if there is a way to do it and come back to you.

Also, do you think you can get access to an AM57x9?

Thank you,

Paula

Hey Paula, your answer worked but only after the environment script was sourced `

pradan@pradan-HP-15-Notebook-PC:~/ti-processor-sdk-linux-am57xx-evm-06.02.00.81$ source linux-devkit/environment-setup

`. 

Thank you for the efforts. 

But, although I see all the examples built as executables, how can I use the tools like : model import tool, viewer tool, etc on my Linux system ?

Hi Prashant, interesting.. maybe I have a path hard coded somewhere, that help me build without running "environment-setup". In any case, I am glad you figure it out. I would take a note.

On the other hand, you can find a prebuild tidl_model_import.out binary and example configuration files in your Linux PSDK. Below example paths:

• ti-processor-sdk-linux-am57xx-evm-06.02.00.81-release/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/tidl_model_import.out
• ti-processor-sdk-linux-am57xx-evm-06.02.00.81-release/linux-devkit/sysroots/x86_64-arago-linux/usr/share/ti/tidl/utils/test/testvecs/config/import/

Sample Usage: tidl_model_import.out ./test/testvecs/config/import/tidl_import_jseg21.txt

More details on how to run import tool, viewer tool etc:

Finally, just FYI, below GIT location for TIDL Utils:

thank you,

Paula