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https://github.com/jerryscript-project/jerryscript.git
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Generate jerryscript-config.h before build (#2934)
Previously after the library was build there was no easy way to get back the information of how it was build. This change adds a bit of CMake code to generate the jerryscript-config.h file containing the default options and adding the modified build options/features. JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.u-szeged@partner.samsung.com
This commit is contained in:
Péter Gál
Robert Fancsik
parent
c90306449e
commit
1409a68dcb
@ -169,7 +169,7 @@ if(ENABLE_ALL_IN_ONE_SOURCE)
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set(ALL_IN_FILE_H "${CMAKE_BINARY_DIR}/src/jerryscript.h")
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set(JERRYSCRIPT_CONFIG_H "${CMAKE_BINARY_DIR}/src/jerryscript-config.h")
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add_custom_command(OUTPUT ${ALL_IN_FILE} ${ALL_IN_FILE_H} ${JERRYSCRIPT_CONFIG_H}
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add_custom_command(OUTPUT ${ALL_IN_FILE} ${ALL_IN_FILE_H}
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COMMAND python ${CMAKE_SOURCE_DIR}/tools/srcgenerator.py
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--jerry-core
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--output-dir ${CMAKE_BINARY_DIR}/src
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@ -178,6 +178,14 @@ if(ENABLE_ALL_IN_ONE_SOURCE)
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${CMAKE_SOURCE_DIR}/tools/srcgenerator.py
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${CMAKE_SOURCE_DIR}/tools/srcmerger.py
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)
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# The "true" jerryscript-config.h will be generated by the configure_file below,
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# which contains the default options and the ones passed for the CMake.
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# The input for this is the jerryscript-config.h generated by the command above.
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set(JERRYSCRIPT_GEN_CONFIG_H ${CMAKE_CURRENT_BINARY_DIR}/jerryscript-config.h)
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add_custom_command(OUTPUT ${JERRYSCRIPT_CONFIG_H}
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COMMAND ${CMAKE_COMMAND} -E copy ${JERRYSCRIPT_GEN_CONFIG_H} ${JERRYSCRIPT_CONFIG_H}
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DEPENDS ${ALL_IN_FILE_C} ${ALL_IN_FILE_H})
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add_custom_target(generate-single-source-jerry DEPENDS ${ALL_IN_FILE} ${ALL_IN_FILE_H})
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add_dependencies(generate-single-source generate-single-source-jerry)
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@ -245,6 +253,16 @@ if(EXISTS ${JERRY_PROFILE})
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file(READ "${JERRY_PROFILE}" PROFILE_SETTINGS)
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string(REGEX REPLACE "^#.*$" "" PROFILE_SETTINGS "${PROFILE_SETTINGS}")
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string(REGEX REPLACE "[\r|\n]" ";" PROFILE_SETTINGS "${PROFILE_SETTINGS}")
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# Process entries and save them as CMake variables.
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# This is required to correctly generate the jerryscript-config.h file.
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foreach(PROFILE_ENTRY ${PROFILE_SETTINGS})
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string(REPLACE "=" ";" PROFILE_ENTRY "${PROFILE_ENTRY}")
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list(GET PROFILE_ENTRY 0 PROFILE_KEY)
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list(GET PROFILE_ENTRY 1 PROFILE_VALUE)
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set(${PROFILE_KEY} ${PROFILE_VALUE})
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endforeach()
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set(DEFINES_JERRY ${DEFINES_JERRY} ${PROFILE_SETTINGS})
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else()
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message(FATAL_ERROR "Profile file: '${JERRY_PROFILE}' doesn't exist!")
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@ -280,6 +298,88 @@ set(DEFINES_JERRY ${DEFINES_JERRY} JERRY_GLOBAL_HEAP_SIZE=${JERRY_GLOBAL_HEAP_SI
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# Maximum size of stack memory usage
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set(DEFINES_JERRY ${DEFINES_JERRY} JERRY_STACK_LIMIT=${JERRY_STACK_LIMIT})
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## This function is to read "config.h" for default values
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function(read_set_defines FILE PREFIX OUTPUTVAR)
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file(READ "${CMAKE_CURRENT_SOURCE_DIR}/${FILE}" INPUT_FILE_CONTENTS)
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# match all "#define <PREFIX>\n" lines
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# notes:
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# * before the "#" there must be a newline and any number of spaces.
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# * after the "#" there can be any number of spaces.
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string(REGEX MATCHALL "\r?\n[ ]*#[ ]*define ${PREFIX}[^\n]*"
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RAW_DEFINES "${INPUT_FILE_CONTENTS}")
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set(SELECTED_VARS )
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# Transform the defines to a list of (<name>; <value>; <name 2>; <value 2>; ...) list
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foreach(DEFINE_ENTRY ${RAW_DEFINES})
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# by default every define value is empty
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set(DEFINE_VALUE " ")
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# split up the define at the space between the define name and value (if there is any)
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# first remove "#define" part of the string
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string(REGEX REPLACE "\r?\n[ ]*#[ ]*define[ ]+" "" DEFINE_KEY_VALUE "${DEFINE_ENTRY}")
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string(FIND "${DEFINE_KEY_VALUE}" " " DEFINE_KEY_IDX)
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string(LENGTH "${DEFINE_KEY_VALUE}" DEFINE_LENGTH)
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if (DEFINE_KEY_IDX EQUAL "-1")
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set(DEFINE_KEY ${DEFINE_KEY_VALUE})
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else()
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string(SUBSTRING "${DEFINE_KEY_VALUE}" 0 ${DEFINE_KEY_IDX} DEFINE_KEY)
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string(SUBSTRING "${DEFINE_KEY_VALUE}" ${DEFINE_KEY_IDX} -1 DEFINE_VALUE)
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string(STRIP "${DEFINE_VALUE}" DEFINE_VALUE)
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endif()
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list(APPEND SELECTED_VARS ${DEFINE_KEY} ${DEFINE_VALUE})
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endforeach()
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set(${OUTPUTVAR} ${SELECTED_VARS} PARENT_SCOPE)
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endfunction(read_set_defines)
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# CONFIG_DEFAULTS contains define name and values which have the JERRY_ prefix
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# as a list of (<name>; <value>; <name 2>; <value 2>; ...)
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read_set_defines("config.h" JERRY_ CONFIG_DEFAULTS)
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## Process the default values and build options to generate build config defines
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list(LENGTH CONFIG_DEFAULTS CONFIG_DEFAULT_LENGTH)
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math(EXPR CONFIG_DEFAULT_LENGTH "${CONFIG_DEFAULT_LENGTH} - 1")
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set(JERRY_MODIFIED_OPTIONS)
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foreach(CONFIG_IDX RANGE 0 ${CONFIG_DEFAULT_LENGTH} 2)
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list(GET CONFIG_DEFAULTS ${CONFIG_IDX} KEY)
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math(EXPR VALUE_IDX "${CONFIG_IDX} + 1")
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list(GET CONFIG_DEFAULTS ${VALUE_IDX} VALUE)
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# ${KEY} is the value for the given variable (aka define)
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# normalize ON/OFF cmake values to 1/0 for easier processing.
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if(${KEY} STREQUAL "ON")
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set(${KEY} 1)
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elseif(${KEY} STREQUAL "OFF")
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set(${KEY} 0)
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endif()
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# Generate "#define JERRY_<CONFIG> <CONFIG_VALUE>" entries if it is different from
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# the config default.
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# If the define loaded from the config file have a different value than the
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# relevant option passed for the CMake means that it does not have a default value.
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if(DEFINED ${KEY} AND NOT (${KEY} STREQUAL ${VALUE}))
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set(JERRY_MODIFIED_OPTIONS "${JERRY_MODIFIED_OPTIONS}#define ${KEY} ${${KEY}}\n")
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endif()
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endforeach()
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# Generate the jerryscript-config.h file into the build directory
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# This file will contain the options different from the default (aka it's the build config).
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if(JERRY_MODIFIED_OPTIONS)
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set(JERRY_BUILD_CFG
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"Generated differences from default by CMake based on build options:\n${JERRY_MODIFIED_OPTIONS}")
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else()
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set(JERRY_BUILD_CFG "JerryScript configuration")
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endif()
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configure_file(config.h jerryscript-config.h @ONLY)
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add_library(${JERRY_CORE_NAME} ${SOURCE_CORE_FILES})
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target_compile_definitions(${JERRY_CORE_NAME} PUBLIC ${DEFINES_JERRY})
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@ -304,4 +404,5 @@ configure_file(libjerry-core.pc.in libjerry-core.pc @ONLY)
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install(TARGETS ${JERRY_CORE_NAME} DESTINATION lib)
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libjerry-core.pc DESTINATION lib/pkgconfig)
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/jerryscript-config.h DESTINATION include)
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install(DIRECTORY ${INCLUDE_CORE_PUBLIC}/ DESTINATION include)
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@ -13,8 +13,10 @@
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* limitations under the License.
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*/
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#ifndef CONFIG_H
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#define CONFIG_H
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#ifndef JERRYSCRIPT_CONFIG_H
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#define JERRYSCRIPT_CONFIG_H
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// @JERRY_BUILD_CFG@
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/**
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* Built-in configurations
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@ -698,4 +700,4 @@
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# error "Date does not support float32"
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#endif
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#endif /* !CONFIG_H */
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#endif /* !JERRYSCRIPT_CONFIG_H */
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