System Information

• OpenCV @ 4.x (Jan 16, 2024) (1d701d1)
• ubuntu 22.04 with g++-powerpc64le-linux-gnu and qemu-user packages

Detailed description

Many tests fail when running core test on qemu for powerpc64le

Steps to reproduce

Build using toolchain file:

set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR powerpc64le)
set(CMAKE_C_COMPILER   /usr/bin/powerpc64le-linux-gnu-gcc)
set(CMAKE_CXX_COMPILER /usr/bin/powerpc64le-linux-gnu-g++)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

Run:

OPENCV_TEST_DATA_PATH=/opencv_extra/testdata \
qemu-ppc64le \
  -L /usr/powerpc64le-linux-gnu/ \
./bin/opencv_test_core

Result: 307 test failed

failures.txt

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files (videos, images, onnx, etc)