cmake: Eclipse CDT4 generator amendment
1. The generator handles just the COMPILE_DEFINITIONS.
(See: __ZEPHYR_SUPERVISOR__)
For the defines in INTERFACE_COMPILE_DEFINITIONS
a special handling is necessary.
Solution:
The amendment function generates a macro header file
${CMAKE_BINARY_DIR}/zephyr/include/generated/cmake_intdef.h
based on INTERFACE_COMPILE_DEFINITIONS and appends the
defines from the file to
CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS.
2. Eclipse CDT4 indexer has problems with CMake 'Eclipse CDT4 - x'
generator projects that use mixed C/C++.
The Eclipse CDT4 indexer is showing a lot of unresolved symbol
errors, when the project was created with CMake generator and
the code is a mix of C and C++.
The root cause of the problem is the g++ built-in __cplusplus macro,
that is passed by CMake generator in the '.cproject' file.
The defines in '.cproject' are always the same for C and C++.
In mixed C/C++ projects, the header files often contain the following
lines to let C++ code call the C functions:
#ifdef __cplusplus
extern "C" {
#endif
< header content >
#ifdef __cplusplus
}
#endif
Whenever the Eclipse CDT4 indexer compiles the code for
code analysis, it has the macro __cplusplus set,
independent of whether standard C or C++ source files are compiled.
The 'extern "C"' confuses the standard C compilation and the indexer
is messed up.
Solution:
The amendment function deletes the __cplusplus entry from
CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS.
3. The amendment function appends the defines from
${CMAKE_BINARY_DIR}/zephyr/include/generated/autoconf.h to
CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS.
Signed-off-by: Istvan Bisz <istvan.bisz@t-online.hu>
This commit is contained in:
Istvan Bisz
Anas Nashif
parent
4ccf075d3b
commit
26e6162a82
2 changed files with 208 additions and 0 deletions
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@ -350,3 +350,11 @@ foreach(boilerplate_lib ${ZEPHYR_INTERFACE_LIBS_PROPERTY})
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${boilerplate_lib}
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)
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endforeach()
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if("${CMAKE_EXTRA_GENERATOR}" STREQUAL "Eclipse CDT4")
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# Call the amendment function before .project and .cproject generation
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# C and CXX includes, defines in .cproject without __cplusplus
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# with project includes and defines
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include(${ZEPHYR_BASE}/cmake/ide/eclipse_cdt4_generator_amendment.cmake)
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eclipse_cdt4_generator_amendment(1)
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endif()
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200
cmake/ide/eclipse_cdt4_generator_amendment.cmake
Normal file
200
cmake/ide/eclipse_cdt4_generator_amendment.cmake
Normal file
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@ -0,0 +1,200 @@
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# cmake: Eclipse CDT4 generator amendment
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#
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#1. The generator handles just the COMPILE_DEFINITIONS.
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# (See: __ZEPHYR_SUPERVISOR__)
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# For the defines in INTERFACE_COMPILE_DEFINITIONS
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# a special handling is necessary.
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#
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# Solution:
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# The amendment function generates a macro header file
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# ${CMAKE_BINARY_DIR}/zephyr/include/generated/cmake_intdef.h
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# based on INTERFACE_COMPILE_DEFINITIONS and appends the
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# defines from the file to
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# CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS.
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#
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#2. Eclipse CDT4 indexer has problems with CMake 'Eclipse CDT4 - x'
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# generator projects that use mixed C/C++.
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# The Eclipse CDT4 indexer is showing a lot of unresolved symbol
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# errors, when the project was created with CMake generator and
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# the code is a mix of C and C++.
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# The root cause of the problem is the g++ built-in __cplusplus macro,
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# that is passed by CMake generator in the '.cproject' file.
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# The defines in '.cproject' are always the same for C and C++.
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# In mixed C/C++ projects, the header files often contain the following
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# lines to let C++ code call the C functions:
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#
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# #ifdef __cplusplus
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# extern "C" {
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# #endif
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#
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# < header content >
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#
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# #ifdef __cplusplus
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# }
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# #endif
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#
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# Whenever the Eclipse CDT4 indexer compiles the code for
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# code analysis, it has the macro __cplusplus set,
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# independent of whether standard C or C++ source files are compiled.
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# The 'extern "C"' confuses the standard C compilation and the indexer
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# is messed up.
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#
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# Solution:
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# The amendment function deletes the __cplusplus entry from
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# CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS.
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#
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#3. The amendment function appends the defines from
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# ${CMAKE_BINARY_DIR}/zephyr/include/generated/autoconf.h to
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# CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS.
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#
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function(eclipse_cdt4_generator_amendment _param_defs)
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#
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# _param_defs handled values:
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#
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# 1 - work mode: "C and CXX includes, defines in .cproject without __cplusplus"
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# 2 - work mode: "C and CXX includes, defines in .cproject with __cplusplus"
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# 5 - work mode: "C and CXX includes, defines in Eclipse with project defines"
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#
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# In any other case,
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# the C and CXX includes, defines setting in Eclipse is the user task.
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#
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## EXPERIMENTAL:
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## 3 - work mode: "C and CXX includes, defines in .settings - [EXPERIMENTAL]"
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## 4 - work mode: "C and CXX includes, defines in .settings with project defines - [EXPERIMENTAL]"
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#
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message(" Eclipse CDT4 generator amendment mode:")
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if (${_param_defs} EQUAL 1)
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set(_work_mode "C and CXX includes, defines in .cproject without __cplusplus")
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message(" ${_work_mode}")
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message(" with project includes and defines")
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elseif (${_param_defs} EQUAL 2)
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set(_work_mode "C and CXX includes, defines in .cproject with __cplusplus")
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message(" ${_work_mode}")
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message(" with project includes and defines")
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#elseif (${_param_defs} EQUAL 3)
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# set(_work_mode "C and CXX includes, defines in .settings - [EXPERIMENTAL]")
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# message(" ${_work_mode}")
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# message(" without project defines")
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#elseif (${_param_defs} EQUAL 4)
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# set(_work_mode "C and CXX includes, defines in .settings with project defines - [EXPERIMENTAL]")
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# message(" ${_work_mode}")
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elseif (${_param_defs} EQUAL 5)
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set(_work_mode "C and CXX includes, defines in Eclipse with project defines")
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message(" ${_work_mode}")
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else(${_param_defs} EQUAL 1)
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set(_work_mode "C and CXX includes, defines setting in Eclipse is the user task")
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message(" ${_work_mode}")
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endif(${_param_defs} EQUAL 1)
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set(OUTPUT_FILE ${CMAKE_BINARY_DIR}/zephyr/include/generated/cmake_intdef.h)
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file(WRITE ${OUTPUT_FILE} "/* Generated by eclipse_cd4_generator_amendment.cmake */\n")
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file(APPEND ${OUTPUT_FILE} "/* The header contains the defines collected from the */\n")
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file(APPEND ${OUTPUT_FILE} "/* INTERFACE_COMPILE_DEFINITIONS target property */\n")
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file(APPEND ${OUTPUT_FILE} "/* corresponding to zephyr_interface */\n")
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get_target_property(_int_comp_def zephyr_interface INTERFACE_COMPILE_DEFINITIONS)
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foreach( d ${_int_comp_def} )
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string(REGEX MATCH "([A-Za-z_][A-Za-z0-9_]*) *=* *(.*) *$" _dummy "${d}")
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file(APPEND ${OUTPUT_FILE} "#define ${CMAKE_MATCH_1} ${CMAKE_MATCH_2}\n")
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endforeach()
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if (${_work_mode} STREQUAL "C and CXX includes, defines in Eclipse with project defines")
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message("")
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message(" -------------------------------------------------------------------------")
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message(" Add the following two command line parameters:")
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message("")
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message(" -imacros ${CMAKE_BINARY_DIR}/zephyr/include/generated/cmake_intdef.h")
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message(" -imacros ${AUTOCONF_H}")
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message("")
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message(" to 'CDT cross GCC Built-in Compiler Settings' provider command definition")
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message(" -------------------------------------------------------------------------")
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message("")
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endif()
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if ( (${_work_mode} STREQUAL "C and CXX includes, defines in .settings - [EXPERIMENTAL]") OR
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(${_work_mode} STREQUAL "C and CXX includes, defines in .settings with project defines - [EXPERIMENTAL]") )
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set(OUTPUT_FILE ${CMAKE_BINARY_DIR}/.settings/language.settings.xml)
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file(WRITE ${OUTPUT_FILE} "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n")
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file(APPEND ${OUTPUT_FILE} "<project>\n")
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file(APPEND ${OUTPUT_FILE} "\t<configuration id=\"org.eclipse.cdt.core.default.config.1\" name=\"Configuration\">\n")
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file(APPEND ${OUTPUT_FILE} "\t\t<extension point=\"org.eclipse.cdt.core.LanguageSettingsProvider\">\n")
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file(APPEND ${OUTPUT_FILE} "\t\t\t<provider copy-of=\"extension\" id=\"org.eclipse.cdt.ui.UserLanguageSettingsProvider\"/>\n")
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file(APPEND ${OUTPUT_FILE} "\t\t\t<provider-reference id=\"org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider\" ref=\"shared-provider\"/>\n")
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file(APPEND ${OUTPUT_FILE} "\t\t\t<provider-reference id=\"org.eclipse.cdt.core.PathEntryScannerInfoLanguageSettingsProvider\" ref=\"shared-provider\"/>\n")
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if (${_work_mode} STREQUAL "C and CXX includes, defines in .settings with project defines - [EXPERIMENTAL]")
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file(APPEND ${OUTPUT_FILE} "\t\t\t<provider class=\"org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector\" console=\"false\" id=\"org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector\" keep-relative-paths=\"false\" name=\"Zephyr autoconf and SDK Compiler Settings\" parameter=\"${CROSS_COMPILE}\${COMMAND} \${FLAGS} -imacros ${CMAKE_BINARY_DIR}/zephyr/include/generated/cmake_intdef.h -imacros ${AUTOCONF_H} -E -P -v -dD "\${INPUTS}"\" store-entries-with-project=\"true\">\n")
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else ()
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file(APPEND ${OUTPUT_FILE} "\t\t\t<provider class=\"org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector\" console=\"false\" id=\"org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector\" keep-relative-paths=\"false\" name=\"Zephyr autoconf and SDK Compiler Settings\" parameter=\"${CROSS_COMPILE}\${COMMAND} \${FLAGS} -E -P -v -dD "\${INPUTS}"\" store-entries-with-project=\"true\">\n")
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endif ()
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file(APPEND ${OUTPUT_FILE} "\t\t\t\t<language-scope id=\"org.eclipse.cdt.core.gcc\"/>\n")
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file(APPEND ${OUTPUT_FILE} "\t\t\t\t<language-scope id=\"org.eclipse.cdt.core.g++\"/>\n")
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file(APPEND ${OUTPUT_FILE} "\t\t\t</provider>\n")
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file(APPEND ${OUTPUT_FILE} "\t\t</extension>\n")
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file(APPEND ${OUTPUT_FILE} "\t</configuration>\n")
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file(APPEND ${OUTPUT_FILE} "</project>\n")
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endif ()
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if ( (${_work_mode} STREQUAL "C and CXX includes, defines in .cproject without __cplusplus") OR
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(${_work_mode} STREQUAL "C and CXX includes, defines in .cproject with __cplusplus") OR
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(${_work_mode} STREQUAL "C and CXX includes, defines in .settings - [EXPERIMENTAL]") )
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if ( (${_work_mode} STREQUAL "C and CXX includes, defines in .cproject without __cplusplus") OR
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(${_work_mode} STREQUAL "C and CXX includes, defines in .cproject with __cplusplus") )
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if (${_work_mode} STREQUAL "C and CXX includes, defines in .cproject without __cplusplus")
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# Delete __cplusplus define
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set(TEMP_VAR "${CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS}")
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STRING(REGEX REPLACE "__cplusplus;.*;" "" TEMP_VAR "${TEMP_VAR}")
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set(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS "${TEMP_VAR}" CACHE INTERNAL "CXX compiler system defined macros")
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endif()
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else()
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# Wiping C compiler system defined macros and include directories
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if (CMAKE_C_COMPILER_ID MATCHES GNU)
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set(CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS "" CACHE INTERNAL "C compiler system include directories")
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set(CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS "" CACHE INTERNAL "C compiler system defined macros")
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endif ()
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# Wiping CXX compiler system defined macros and include directories
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if ("${CMAKE_CXX_COMPILER_ID}" MATCHES GNU)
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set(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_INCLUDE_DIRS "" CACHE INTERNAL "CXX compiler system include directories")
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set(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS "" CACHE INTERNAL "CXX compiler system defined macros")
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endif ()
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endif()
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file(STRINGS ${CMAKE_BINARY_DIR}/zephyr/include/generated/cmake_intdef.h _int_comp_def)
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set (_resultDefines "${CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS}")
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foreach( d ${_int_comp_def} )
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string(REGEX MATCH "^#define +([A-Za-z_][A-Za-z0-9_]*) *(.*) *$" _dummy "${d}")
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if (NOT ("${CMAKE_MATCH_1}" STREQUAL "") )
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list(APPEND _resultDefines "${CMAKE_MATCH_1}")
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if ("${CMAKE_MATCH_2}" STREQUAL "")
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list(APPEND _resultDefines "")
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else()
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list(APPEND _resultDefines "${CMAKE_MATCH_2}")
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endif()
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endif()
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endforeach()
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set (CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS "${_resultDefines}" CACHE INTERNAL "C compiler system defined macros")
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file(STRINGS ${AUTOCONF_H} _auto_conf)
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set (_resultDefines "${CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS}")
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foreach( d ${_auto_conf} )
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string(REGEX MATCH "^#define +([A-Za-z_][A-Za-z0-9_]*) *(.*) *$" _dummy "${d}")
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if (NOT ("${CMAKE_MATCH_1}" STREQUAL "") )
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list(APPEND _resultDefines "${CMAKE_MATCH_1}")
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if ("${CMAKE_MATCH_2}" STREQUAL "")
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list(APPEND _resultDefines " ")
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else()
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list(APPEND _resultDefines "${CMAKE_MATCH_2}")
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endif()
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endif()
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endforeach()
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set (CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS "${_resultDefines}" CACHE INTERNAL "C compiler system defined macros")
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endif()
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endfunction(eclipse_cdt4_generator_amendment _param_defs)
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