Re: [meta-arago][master][PATCH 1/1] tensorflow-lite: fix undefined Abseil logging symbols in shared library

On 12/03/26 8:06 pm, Andrew Davis wrote:
> On 3/12/26 9:19 AM, Pratham Deshmukh wrote:
>> Add patch to resolve GStreamer pipeline failures when using 
>> TensorFlow Lite
>> object detection models. The tensorflow2-lite NNStreamer plugin was 
>> failing
>> to load due to missing Abseil logging symbols (_ZN4absl12lts_2025012712
>> log_internal9kCharNullE, 
>> _ZN4absl12lts_2025012712log_internal10LogMessage
>> C1EPKciNS2_8ErrorTagE) in the libtensorflow-lite.so.2 shared library.
>>
>
> You could demangle these symbols[0] to make them more readable here, 
> or just
> not list them at all, the exact symbols that where missing can be seen in
> the patch itself.
>
> Andrew
>
> [0] https://www.demangler.com/
>
Understood. I'll ensure this in future patch submissions.
Thanks.
>> The fix adds missing Abseil logging targets to the CMake build system 
>> and
>> links required logging libraries (log_internal_nullguard, 
>> log_internal_message,
>> log_severity, raw_logging_internal) to ensure all symbols are 
>> available at
>> runtime.
>>
>> Added Patch:
>>    - 0003-Fix-GStreamer-TensorFlow-Lite-pipeline-failures-due-.patch
>>
>> Signed-off-by: Pratham Deshmukh <[email protected]>
>> ---
>>   ...nsorFlow-Lite-pipeline-failures-due-.patch | 62 +++++++++++++++++++
>>   .../tensorflow-lite/tensorflow-lite_2.20.0.bb |  1 +
>>   2 files changed, 63 insertions(+)
>>   create mode 100644 
>> meta-arago-extras/recipes-framework/tensorflow-lite/tensorflow-lite/0003-Fix-GStreamer-TensorFlow-Lite-pipeline-failures-due-.patch
>>
>> diff --git 
>> a/meta-arago-extras/recipes-framework/tensorflow-lite/tensorflow-lite/0003-Fix-GStreamer-TensorFlow-Lite-pipeline-failures-due-.patch 
>> b/meta-arago-extras/recipes-framework/tensorflow-lite/tensorflow-lite/0003-Fix-GStreamer-TensorFlow-Lite-pipeline-failures-due-.patch 
>>
>> new file mode 100644
>> index 00000000..f286018f
>> --- /dev/null
>> +++ 
>> b/meta-arago-extras/recipes-framework/tensorflow-lite/tensorflow-lite/0003-Fix-GStreamer-TensorFlow-Lite-pipeline-failures-due-.patch
>> @@ -0,0 +1,62 @@
>> +From 0e6c2c6d0911897e38f54dd0739e13ea15ccedd8 Mon Sep 17 00:00:00 2001
>> +From: Pratham Deshmukh <[email protected]>
>> +Date: Thu, 12 Mar 2026 16:50:33 +0530
>> +Subject: [PATCH] Fix GStreamer TensorFlow Lite pipeline failures due to
>> + missing Abseil logging symbols
>> +
>> +When running GStreamer pipelines with TensorFlow Lite object 
>> detection [0]
>> +
>> +The pipeline failed with undefined symbol errors:
>> +  undefined symbol: _ZN4absl12lts_2025012712log_internal9kCharNullE
>> +  undefined symbol: 
>> _ZN4absl12lts_2025012712log_internal10LogMessageC1EPKciNS2_8ErrorTagE
>> +
>> +TensorFlow Lite shared library was missing Abseil logging
>> +components that are required at runtime but weren't being linked 
>> during build.
>> +
>> +Add missing Abseil logging targets (log_internal_message, 
>> log_internal_nullguard)
>> +to the Findabsl.cmake module and link the required Abseil logging 
>> libraries in the
>> +tensorflow-lite target, including absl::log_internal_nullguard for 
>> the kCharNull
>> +symbol, absl::log_internal_message for the LogMessage constructor, 
>> and absl::log_severity
>> +and absl::raw_logging_internal for base logging support.
>> +
>> +[0] 
>> https://texasinstruments.github.io/processor-sdk-doc/processor-sdk-linux-AM62X/esd/docs/master/linux/Foundational_Components/Machine_Learning/tflite.html#example-applications
>> +
>> +Upstream-Status: Pending
>> +
>> +Signed-off-by: Pratham Deshmukh <[email protected]>
>> +---
>> + tensorflow/lite/CMakeLists.txt                     | 4 ++++
>> + tensorflow/lite/tools/cmake/modules/Findabsl.cmake | 2 ++
>> + 2 files changed, 6 insertions(+)
>> +
>> +diff --git a/tensorflow/lite/CMakeLists.txt 
>> b/tensorflow/lite/CMakeLists.txt
>> +index 7e0004ef..8c43fdac 100644
>> +--- a/tensorflow/lite/CMakeLists.txt
>> ++++ b/tensorflow/lite/CMakeLists.txt
>> +@@ -732,6 +732,10 @@ target_link_libraries(tensorflow-lite
>> +     absl::strings
>> +     absl::synchronization
>> +     absl::variant
>> ++    absl::log_internal_nullguard
>> ++    absl::log_severity
>> ++    absl::raw_logging_internal
>> ++    absl::log_internal_message
>> +     farmhash
>> +     fft2d_fftsg2d
>> +     flatbuffers::flatbuffers
>> +diff --git a/tensorflow/lite/tools/cmake/modules/Findabsl.cmake 
>> b/tensorflow/lite/tools/cmake/modules/Findabsl.cmake
>> +index 75041749..685b851b 100644
>> +--- a/tensorflow/lite/tools/cmake/modules/Findabsl.cmake
>> ++++ b/tensorflow/lite/tools/cmake/modules/Findabsl.cmake
>> +@@ -99,6 +99,8 @@ if(abseil-cpp_POPULATED)
>> +     leak_check_api_enabled_for_testing
>> +     leak_check_disable
>> +     log_severity
>> ++    log_internal_message
>> ++    log_internal_nullguard
>> +     main_lib
>> +     malloc_internal
>> +     memory
>> +--
>> +2.34.1
>> +
>> diff --git 
>> a/meta-arago-extras/recipes-framework/tensorflow-lite/tensorflow-lite_2.20.0.bb 
>> b/meta-arago-extras/recipes-framework/tensorflow-lite/tensorflow-lite_2.20.0.bb 
>>
>> index 43562303..ee445e75 100644
>> --- 
>> a/meta-arago-extras/recipes-framework/tensorflow-lite/tensorflow-lite_2.20.0.bb
>> +++ 
>> b/meta-arago-extras/recipes-framework/tensorflow-lite/tensorflow-lite_2.20.0.bb
>> @@ -16,6 +16,7 @@ SRC_URI = " \
>> git://github.com/tensorflow/tensorflow.git;protocol=https;branch=r2.20 \
>>       file://0001-Update-CMakeLists-for-building.patch \
>> file://0002-Update-CMakeLists-for-building-shared-object.patch \
>> + 
>> file://0003-Fix-GStreamer-TensorFlow-Lite-pipeline-failures-due-.patch \
>>       file://tensorflow2-lite.pc.in \
>>   "
>