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@@ -94,8 +94,18 @@ endif()
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# Global Compiler & Linker Configuration
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#
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-# include symbols
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-add_compile_options(-g)
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+# enable warnings
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+add_compile_options(-Wall -Wextra -Wno-expansion-to-defined -Wsign-compare)
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+
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+# default standards for all targets
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+set(CMAKE_C_STANDARD 11)
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+set(CMAKE_CXX_STANDARD 17)
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+
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+# support _DEBUG macro (some code uses to recognize debug builds)
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+if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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+ add_compile_definitions(_DEBUG)
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+endif()
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+
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#
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# Firmware - get file lists.
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@@ -213,25 +223,35 @@ foreach(_FILE ${AVR_SOURCES})
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set_property(SOURCE ${_FILE} APPEND_STRING PROPERTY COMPILE_FLAGS "-frandom-seed=core/${_BASE}.o")
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endforeach()
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-# optimizations
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+#
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+# Target configuration
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+#
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if(CMAKE_CROSSCOMPILING)
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- if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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- add_compile_options(-Og)
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- else()
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- add_compile_options(-Os)
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- endif()
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+ # default optimization flags
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+ set(CMAKE_CXX_FLAGS_DEBUG "-Og -g")
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+ set(CMAKE_CXX_FLAGS_RELEASE "-Os -g -DNDEBUG")
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+ set(CMAKE_C_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG})
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+ set(CMAKE_C_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE})
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- # mcu related settings
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- set(MCU_FLAGS -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10819 -DARDUINO_AVR_PRUSA_EINSY_RAMBO -DARDUINO_ARCH_AVR)
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- add_compile_options(${MCU_FLAGS})
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+ # mcu and target-related settings
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+ add_compile_options(-mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10819 -DARDUINO_AVR_PRUSA_EINSY_RAMBO -DARDUINO_ARCH_AVR)
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+ add_link_options(-mmcu=atmega2560 -Wl,-u,vfprintf -lprintf_flt -lm)
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- add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-fno-exceptions>)
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+ # disable some C++ language features
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add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-fno-threadsafe-statics>)
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add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-fno-rtti>)
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- add_compile_options(-Wall -Wextra -Wno-expansion-to-defined -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects)
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+
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+ # disable exceptions
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+ add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-fno-exceptions>)
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+ add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-fno-unwind-tables>)
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# split and gc sections
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- add_link_options(-Os -g -flto -Wl,--gc-sections -mmcu=atmega2560 -Wl,-u,vfprintf -lprintf_flt -lm )
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+ add_compile_options(-ffunction-sections -fdata-sections)
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+ add_link_options(-Wl,--gc-sections)
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+
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+ # LTO (with custom options)
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+ add_compile_options(-flto -fno-fat-lto-objects)
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+ add_link_options(-flto)
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# Create this target before we apply the GC options
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add_library(avr_core STATIC ${AVR_SOURCES})
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@@ -239,31 +259,8 @@ if(CMAKE_CROSSCOMPILING)
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${PRUSA_BOARDS_DIR}/cores/prusa_einsy_rambo/
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${PRUSA_BOARDS_DIR}/variants/prusa_einsy_rambo/
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)
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-
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-
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-
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- # disable exceptions and related metadata
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- add_compile_options(-fno-unwind-tables)
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- add_link_options(-Wl,--defsym,__exidx_start=0,--defsym,__exidx_end=0)
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-else()
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- if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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- add_compile_options(-O0)
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- else()
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- add_compile_options(-O2)
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- endif()
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-endif()
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-
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-# enable all warnings (well, not all, but some)
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-add_compile_options(-Wsign-compare)
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-add_compile_options($<$<COMPILE_LANGUAGE:C>:-std=gnu11>)
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-
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-# support _DEBUG macro (some code uses to recognize debug builds)
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-if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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- add_compile_definitions(_DEBUG)
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endif()
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-
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-
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# Setup language resources:
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# file(GLOB LANG_VARIANTS RELATIVE ${PROJECT_SOURCE_DIR}/lang/po ${PROJECT_SOURCE_DIR}/lang/po/Firmware_??.po)
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# string(REPLACE "Firmware_" "" LANG_VARIANTS "${LANG_VARIANTS}")
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@@ -281,8 +278,6 @@ add_dependencies(ALL_FIRMWARE ALL_ENGLISH ALL_MULTILANG)
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function(add_base_binary variant_name)
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add_executable(${variant_name} ${FW_SOURCES} ${FW_HEADERS} ${VARIANT_CFG_FILE})
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- set_target_properties(${variant_name} PROPERTIES CXX_STANDARD 17)
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-
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target_include_directories(${variant_name} PRIVATE
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${PRUSA_BOARDS_DIR}/cores/prusa_einsy_rambo/
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${PRUSA_BOARDS_DIR}/variants/prusa_einsy_rambo/
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