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https://github.com/espressif/esp-idf.git
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feat(ulp): build ULP full subprojects as CMake v2 children
This commit is contained in:
Renz Bagaporo
@@ -0,0 +1,158 @@
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# SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Apache-2.0
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from pathlib import Path
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import pytest
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from test_build_system_helpers import IdfPyFunc
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from test_build_system_helpers import replace_in_file
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@pytest.mark.test_app_copy('tools/test_apps/system/ulp/full_subproject/lp_core')
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def test_ulp_full_project_regenerates_config_from_parent_sdkconfig(idf_py: IdfPyFunc, test_app_copy: Path) -> None:
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# Full ULP subprojects use the parent sdkconfig as their source of truth.
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# Changing the parent config should regenerate the child's sdkconfig.cmake.
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assert test_app_copy.exists()
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sdkconfig = Path('build/sdkconfig')
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idf_py('-DIDF_TARGET=esp32c6', '-DSDKCONFIG=build/sdkconfig', 'build')
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ulp_sdkconfig_cmake_files = sorted(Path('build/subprojects').glob('*/config/sdkconfig.cmake'))
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assert len(ulp_sdkconfig_cmake_files) == 1
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ulp_sdkconfig_cmake = ulp_sdkconfig_cmake_files[0]
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assert 'set(CONFIG_ULP_COPROC_RESERVE_MEM "4096")' in ulp_sdkconfig_cmake.read_text()
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replace_in_file(sdkconfig, 'CONFIG_ULP_COPROC_RESERVE_MEM=4096', 'CONFIG_ULP_COPROC_RESERVE_MEM=8192')
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idf_py('build')
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assert 'set(CONFIG_ULP_COPROC_RESERVE_MEM "8192")' in ulp_sdkconfig_cmake.read_text()
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@pytest.mark.parametrize(
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'target,subproject_dir,linked_artifact,custom_section,mapped_entry,symbol',
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(
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pytest.param(
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'esp32',
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'ulp_main',
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'ulp_main.sym',
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'.ulp_fsm_extra_data',
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'*libmain.a:counter.*(.ulp_fsm_extra_data .ulp_fsm_extra_data.*)',
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'ldgen_section_marker',
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marks=[pytest.mark.test_app_copy('tools/test_apps/system/ulp/full_subproject/fsm')],
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id='fsm',
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),
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pytest.param(
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'esp32s2',
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'ulp_main',
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'ulp_main.map',
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'.ulp_riscv_extra_data',
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'*libmain.a:main.*(.ulp_riscv_extra_data .ulp_riscv_extra_data.*)',
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'ldgen_section_marker',
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marks=[pytest.mark.test_app_copy('tools/test_apps/system/ulp/full_subproject/riscv')],
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id='riscv',
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),
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pytest.param(
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'esp32c6',
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'ulp_build_system_example',
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'ulp_build_system_example.map',
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'.ulp_math_fast',
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'*libulp_math.a:ulp_math.*(.ulp_math_fast .ulp_math_fast.*)',
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'ulp_math_multiply',
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marks=[pytest.mark.test_app_copy('tools/test_apps/system/ulp/full_subproject/lp_core')],
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id='lp_core',
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),
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),
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)
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def test_ulp_full_project_applies_component_ldgen_mapping(
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idf_py: IdfPyFunc,
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test_app_copy: Path,
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target: str,
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subproject_dir: str,
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linked_artifact: str,
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custom_section: str,
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mapped_entry: str,
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symbol: str,
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) -> None:
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# These examples declare component LDFRAGMENTS and target_linker_script()
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# templates. Build the ULP child project, then check that ldgen expanded the
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# template mapping and the custom section/symbol survived the ULP link.
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assert test_app_copy.exists()
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idf_py(f'-DIDF_TARGET={target}', '-DSDKCONFIG=build/sdkconfig', 'build')
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ulp_project_dir = Path('build/subprojects') / subproject_dir
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processed_scripts = sorted(ulp_project_dir.glob('**/ulp_sections.ld_library_*'))
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assert processed_scripts
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assert any(mapped_entry in script.read_text(encoding='utf-8') for script in processed_scripts)
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linked_output = (ulp_project_dir / linked_artifact).read_text(encoding='utf-8')
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assert custom_section in linked_output
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assert symbol in linked_output
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@pytest.mark.parametrize(
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'target,ulp_project_cmake,subproject_dir,project_replacement,enabled_languages,disabled_languages',
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(
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pytest.param(
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'esp32',
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'main/ulp/CMakeLists.txt',
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'ulp_main',
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None,
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('ASM',),
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('C', 'CXX'),
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marks=[pytest.mark.test_app_copy('tools/test_apps/system/ulp/full_subproject/fsm')],
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id='fsm_asm_only',
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),
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pytest.param(
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'esp32s2',
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'main/ulp/CMakeLists.txt',
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'ulp_main',
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('project(${IDF_DEFAULT_PROJECT_NAME} C CXX ASM)', 'project(${IDF_DEFAULT_PROJECT_NAME} C ASM)'),
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('C', 'ASM'),
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('CXX',),
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marks=[pytest.mark.test_app_copy('tools/test_apps/system/ulp/full_subproject/riscv')],
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id='riscv_c_asm',
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),
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pytest.param(
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'esp32c6',
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'main/ulp/CMakeLists.txt',
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'ulp_build_system_example',
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('project(${IDF_DEFAULT_PROJECT_NAME} C CXX ASM)', 'project(${IDF_DEFAULT_PROJECT_NAME} C ASM)'),
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('C', 'ASM'),
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('CXX',),
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marks=[pytest.mark.test_app_copy('tools/test_apps/system/ulp/full_subproject/lp_core')],
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id='lp_core_c_asm',
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),
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),
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)
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def test_ulp_full_project_respects_child_project_enabled_languages(
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idf_py: IdfPyFunc,
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test_app_copy: Path,
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target: str,
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ulp_project_cmake: str,
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subproject_dir: str,
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project_replacement: tuple[str, str] | None,
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enabled_languages: tuple[str, ...],
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disabled_languages: tuple[str, ...],
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) -> None:
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# The ULP child project should use the languages declared by its own
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# project() call. FSM can build as an ASM-only project, while RISC-V and
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# LP-core ULP projects do not need CXX when their child project only enables
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# C and ASM.
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if project_replacement is not None:
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replace_in_file(test_app_copy / ulp_project_cmake, project_replacement[0], project_replacement[1])
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ulp_project_cmake_path = test_app_copy / ulp_project_cmake
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ulp_project_cmake_path.write_text(
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ulp_project_cmake_path.read_text(encoding='utf-8')
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+ '\nget_property(ulp_enabled_languages GLOBAL PROPERTY ENABLED_LANGUAGES)\n'
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+ 'file(WRITE "${CMAKE_BINARY_DIR}/enabled_languages.txt" "${ulp_enabled_languages}\\n")\n',
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encoding='utf-8',
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)
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idf_py(f'-DIDF_TARGET={target}', '-DSDKCONFIG=build/sdkconfig', 'build')
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child_languages = (
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(Path('build/subprojects') / subproject_dir / 'enabled_languages.txt').read_text(encoding='utf-8').strip()
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)
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for language in enabled_languages:
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assert language in child_languages.split(';')
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for language in disabled_languages:
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assert language not in child_languages.split(';')
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