mirror of
https://github.com/opencv/opencv.git
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d29c7e7871
AArch64 semihosting
* [ts] Disable filesystem support in the TS module.
Because of this change, all the tests loading data will file, but tat
least the core module can be tested with the following line:
opencv_test_core --gtest_filter=-"*Core_InputOutput*:*Core_globbing.accuracy*"
* [aarch64] Build OpenCV for AArch64 semihosting.
This patch provide a toolchain file that allows to build the library
for semihosting applications [1]. Minimal changes have been applied to
the code to be able to compile with a baremetal toolchain.
[1] https://developer.arm.com/documentation/100863/latest
The option `CV_SEMIHOSTING` is used to guard the bits in the code that
are specific to the target.
To build the code:
cmake ../opencv/ \
-DCMAKE_TOOLCHAIN_FILE=../opencv/platforms/semihosting/aarch64-semihosting.toolchain.cmake \
-DSEMIHOSTING_TOOLCHAIN_PATH=/path/to/baremetal-toolchain/bin/ \
-DBUILD_EXAMPLES=ON -GNinja
A barematel toolchain for targeting aarch64 semihosting can be found
at [2], under `aarch64-none-elf`.
[2] https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-a/downloads
The folder `samples/semihosting` provides two example semihosting
applications.
The two binaries can be executed on the host platform with:
qemu-aarch64 ./bin/example_semihosting_histogram
qemu-aarch64 ./bin/example_semihosting_norm
Similarly, the test and perf executables of the modules can be run
with:
qemu-aarch64 ./bin/opecv_[test|perf]_<module>
Notice that filesystem support is disabled by the toolchain file,
hence some of the test that depend on filesystem support will fail.
* [semihosting] Remove blank like at the end of file. [NFC]
The spurious blankline was reported by
https://pullrequest.opencv.org/buildbot/builders/precommit_docs/builds/31158.
* [semihosting] Make the raw pixel file generation OS independent.
Use the facilities provided by Cmake to generate the header file
instead of a shell script, so that the build doesn't fail on systems
that do not have a unix shell.
* [semihosting] Rename variable for semihosting compilation.
* [semihosting] Move the cmake configuration to a variable file.
* [semihosting] Make the guard macro private for the core module.
* [semihosting] Remove space. [NFC]
* [semihosting] Improve comment with information about semihosting. [NFC]
* [semihosting] Update license statement on top of sourvce file. [NFC]
* [semihosting] Replace BM_SUFFIX with SEMIHOSTING_SUFFIX. [NFC]
* [semihosting] Remove double space. [NFC]
* [semihosting] Add some text output to the sample applications.
* [semihosting] Remove duplicate entry in cmake configuration. [NFCI]
* [semihosting] Replace `long` with `int` in sample apps. [NFCI]
* [semihosting] Use `configure_file` to create the random pixels. [NFCI]
* [semihosting][bugfix] Fix name of cmakedefine variable.
* [semihosting][samples] Use CV_8UC1 for grayscale images. [NFCI]
* [semihosting] Add readme file.
* [semihosting] Remove blank like at the end of README. [NFC]
This fixes the failure at
https://pullrequest.opencv.org/buildbot/builders/precommit_docs/builds/31272.
138 lines
4.2 KiB
CMake
138 lines
4.2 KiB
CMake
if(NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_LIST_DIR)
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#===================================================================================================
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#
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# Build as part of OpenCV
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#
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#===================================================================================================
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include("${CMAKE_CURRENT_LIST_DIR}/samples_utils.cmake")
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function(ocv_install_example_src relpath)
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if(INSTALL_C_EXAMPLES)
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file(GLOB files ${ARGN})
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install(FILES ${files}
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DESTINATION "${OPENCV_SAMPLES_SRC_INSTALL_PATH}/${relpath}"
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COMPONENT samples)
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endif()
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endfunction()
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if((TARGET Threads::Threads OR HAVE_PTHREAD OR MSVC OR APPLE) AND NOT OPENCV_EXAMPLES_DISABLE_THREADS)
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add_definitions(-DHAVE_THREADS=1)
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endif()
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add_subdirectory(cpp)
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add_subdirectory(java/tutorial_code)
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add_subdirectory(dnn)
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add_subdirectory(gpu)
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add_subdirectory(tapi)
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add_subdirectory(opencl)
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add_subdirectory(sycl)
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if(WIN32 AND HAVE_DIRECTX)
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add_subdirectory(directx)
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endif()
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if((NOT ANDROID) AND HAVE_OPENGL)
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add_subdirectory(opengl)
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endif()
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if(HAVE_OPENVX)
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add_subdirectory(openvx)
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endif()
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if(UNIX AND NOT ANDROID AND HAVE_VA)
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add_subdirectory(va_intel)
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endif()
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if(ANDROID AND (BUILD_ANDROID_EXAMPLES OR INSTALL_ANDROID_EXAMPLES))
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add_subdirectory(android)
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endif()
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if(INSTALL_PYTHON_EXAMPLES)
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add_subdirectory(python)
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endif()
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# The examples in this folder will work with a semihosting version of
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# OpenCV. For more information about semihosting, see
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# https://developer.arm.com/documentation/100863/latest
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if(OPENCV_SEMIHOSTING)
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add_subdirectory(semihosting)
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endif()
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ocv_install_example_src("." CMakeLists.txt samples_utils.cmake)
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if(INSTALL_C_EXAMPLES)
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install(DIRECTORY data DESTINATION "${OPENCV_SAMPLES_SRC_INSTALL_PATH}" COMPONENT samples_data)
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endif()
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else()
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#===================================================================================================
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#
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# Standalone mode
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#
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#===================================================================================================
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cmake_minimum_required(VERSION 3.1)
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project(samples C CXX)
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option(BUILD_EXAMPLES "Build samples" ON)
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# Assuming following installation folder structure (default for UNIX):
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# <install_root>/share/
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# └── OpenCV/ <-- OPENCV_CONFIG_INSTALL_PATH
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# ├── OpenCVConfig.cmake <-- file to be found by find_package
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# ├── ...
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# ├── samples/ <-- OPENCV_SAMPLES_SRC_INSTALL_PATH
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# │ ├── CMakeLists.txt <-- this file
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# │ ├── cpp/
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find_package(OpenCV REQUIRED PATHS "..")
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include("${CMAKE_CURRENT_LIST_DIR}/samples_utils.cmake")
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function(ocv_install_example_src)
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# not used in this branch
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endfunction()
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if(MSVC)
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if(NOT ENABLE_BUILD_HARDENING)
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add_definitions(-D_CRT_SECURE_NO_WARNINGS)
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endif()
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if(NOT OpenCV_SHARED)
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foreach(flag_var
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CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
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CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
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CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
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CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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if(${flag_var} MATCHES "/MD")
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string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
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endif()
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if(${flag_var} MATCHES "/MDd")
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string(REGEX REPLACE "/MDd" "/MTd" ${flag_var} "${${flag_var}}")
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endif()
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endforeach(flag_var)
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /NODEFAULTLIB:atlthunk.lib /NODEFAULTLIB:msvcrt.lib /NODEFAULTLIB:msvcrtd.lib")
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set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} /NODEFAULTLIB:libcmt.lib")
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set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /NODEFAULTLIB:libcmtd.lib")
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endif()
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endif()
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add_definitions(-DDISABLE_OPENCV_24_COMPATIBILITY=1) # Avoid C-like legacy API
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if(OPENCV_EXAMPLES_DISABLE_THREADS)
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# nothing
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elseif(MSVC OR APPLE)
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set(HAVE_THREADS 1)
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else()
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find_package(Threads)
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endif()
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if((TARGET Threads::Threads OR HAVE_THREADS) AND NOT OPENCV_EXAMPLES_DISABLE_THREADS)
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add_definitions(-DHAVE_THREADS=1)
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endif()
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add_subdirectory(cpp)
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if(WIN32)
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add_subdirectory(directx)
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endif()
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add_subdirectory(dnn)
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# add_subdirectory(gpu)
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add_subdirectory(opencl)
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add_subdirectory(sycl)
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# add_subdirectory(opengl)
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# add_subdirectory(openvx)
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add_subdirectory(tapi)
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# add_subdirectory(va_intel)
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endif()
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