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Enable various compilation flags to reduce the binary size (#401)

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* Add the following compilation flags:
 * -fno-exceptions and -fno-non-call-exceptions : disable exception handling
 * -fno-rtti : disable run time type information (needed by dynamic_cast, for example)

These flags reduce the binary size by about 100KB!

Also, -fstack-usage generate debug info (not in final binary) to allow tools like Puncover to do a stack analysis.

* Remove unused CMake variables in CMake_nRF5x.cmake (duplicated in src/CMakeLists.txt).
Replace -O0 by -Og in DEBUG builds. This generates a smaller binary (small enough for the internal memory) that is debugger friendly.
This commit is contained in:
JF002 2021-06-01 21:03:01 +02:00 committed by GitHub
parent c0b0f8cb73
commit 1b6acdedc2
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 38 additions and 53 deletions
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15
cmake-nRF5x/CMake_nRF5x.cmake
View File

@ -74,21 +74,6 @@ macro(nRF5x_setup)
)
endif ()
set(COMMON_FLAGS "-MP -MD -mthumb -mabi=aapcs -Wall -g3 -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin --short-enums ${CPU_FLAGS} -Wreturn-type -Werror=return-type")
# compiler/assambler/linker flags
set(CMAKE_C_FLAGS "${COMMON_FLAGS}")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -g3")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3")
set(CMAKE_CXX_FLAGS "${COMMON_FLAGS}")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g3")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
set(CMAKE_ASM_FLAGS "-MP -MD -x assembler-with-cpp")
set(CMAKE_EXE_LINKER_FLAGS "-mthumb -mabi=aapcs -L ${NRF5_SDK_PATH}/modules/nrfx/mdk -T${NRF5_LINKER_SCRIPT} ${CPU_FLAGS} -Wl,--gc-sections --specs=nano.specs -lc -lnosys -lm")
# note: we must override the default cmake linker flags so that CMAKE_C_FLAGS are not added implicitly
set(CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_COMPILER} <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
set(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_C_COMPILER} <LINK_FLAGS> <OBJECTS> -lstdc++ -o <TARGET> <LINK_LIBRARIES>")
# basic board definitions and drivers
include_directories(
"${NRF5_SDK_PATH}/components"

74
src/CMakeLists.txt
View File

@ -744,7 +744,7 @@ link_directories(
)
set(COMMON_FLAGS -MP -MD -mthumb -mabi=aapcs -Wall -Wno-unknown-pragmas -g3 -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin --short-enums -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wreturn-type -Werror=return-type)
set(COMMON_FLAGS -MP -MD -mthumb -mabi=aapcs -Wall -Wno-unknown-pragmas -g3 -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin --short-enums -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wreturn-type -Werror=return-type -fstack-usage -fno-exceptions -fno-non-call-exceptions)
add_definitions(-DCONFIG_GPIO_AS_PINRESET)
add_definitions(-DNIMBLE_CFG_CONTROLLER)
add_definitions(-DOS_CPUTIME_FREQ)
@ -766,10 +766,10 @@ add_library(nrf-sdk STATIC ${SDK_SOURCE_FILES})
target_include_directories(nrf-sdk SYSTEM PUBLIC . ../)
target_include_directories(nrf-sdk SYSTEM PUBLIC ${INCLUDES_FROM_LIBS})
target_compile_options(nrf-sdk PRIVATE
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
@ -778,10 +778,10 @@ add_library(nimble STATIC ${NIMBLE_SRC} ${TINYCRYPT_SRC})
target_include_directories(nimble SYSTEM PUBLIC . ../)
target_include_directories(nimble SYSTEM PUBLIC ${INCLUDES_FROM_LIBS})
target_compile_options(nimble PRIVATE
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
@ -790,10 +790,10 @@ add_library(lvgl STATIC ${LVGL_SRC})
target_include_directories(lvgl SYSTEM PUBLIC . ../)
target_include_directories(lvgl SYSTEM PUBLIC ${INCLUDES_FROM_LIBS})
target_compile_options(lvgl PRIVATE
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
@ -805,10 +805,10 @@ add_executable(${EXECUTABLE_NAME} ${SOURCE_FILES})
set_target_properties(${EXECUTABLE_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_FILE_NAME})
target_link_libraries(${EXECUTABLE_NAME} nimble nrf-sdk lvgl)
target_compile_options(${EXECUTABLE_NAME} PUBLIC
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
@ -835,10 +835,10 @@ add_executable(${EXECUTABLE_MCUBOOT_NAME} ${SOURCE_FILES})
target_link_libraries(${EXECUTABLE_MCUBOOT_NAME} nimble nrf-sdk lvgl)
set_target_properties(${EXECUTABLE_MCUBOOT_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_MCUBOOT_FILE_NAME})
target_compile_options(${EXECUTABLE_MCUBOOT_NAME} PUBLIC
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
@ -872,10 +872,10 @@ target_link_libraries(${EXECUTABLE_RECOVERY_NAME} nimble nrf-sdk)
set_target_properties(${EXECUTABLE_RECOVERY_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_RECOVERY_FILE_NAME})
target_compile_definitions(${EXECUTABLE_RECOVERY_NAME} PUBLIC "PINETIME_IS_RECOVERY")
target_compile_options(${EXECUTABLE_RECOVERY_NAME} PUBLIC
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
@ -902,10 +902,10 @@ target_link_libraries(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} nimble nrf-sdk)
set_target_properties(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_RECOVERY_MCUBOOT_FILE_NAME})
target_compile_definitions(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} PUBLIC "PINETIME_IS_RECOVERY")
target_compile_options(${EXECUTABLE_RECOVERY_MCUBOOT_NAME} PUBLIC
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
@ -939,10 +939,10 @@ add_executable(${EXECUTABLE_RECOVERYLOADER_NAME} ${RECOVERYLOADER_SOURCE_FILES})
target_link_libraries(${EXECUTABLE_RECOVERYLOADER_NAME} nrf-sdk)
set_target_properties(${EXECUTABLE_RECOVERYLOADER_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_RECOVERYLOADER_FILE_NAME})
target_compile_options(${EXECUTABLE_RECOVERYLOADER_NAME} PUBLIC
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
target_include_directories(${EXECUTABLE_RECOVERYLOADER_NAME} PUBLIC
@ -972,10 +972,10 @@ add_executable(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} ${RECOVERYLOADER_SOURCE
target_link_libraries(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} nrf-sdk)
set_target_properties(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_MCUBOOT_RECOVERYLOADER_FILE_NAME})
target_compile_options(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} PUBLIC
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
$<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
)
target_include_directories(${EXECUTABLE_MCUBOOT_RECOVERYLOADER_NAME} PUBLIC

2
src/displayapp/DisplayApp.cpp
View File

@ -153,7 +153,7 @@ void DisplayApp::Refresh() {
break;
case Messages::TimerDone:
if (currentApp == Apps::Timer) {
auto *timer = dynamic_cast<Screens::Timer*>(currentScreen.get());
auto *timer = static_cast<Screens::Timer*>(currentScreen.get());
timer->setDone();
} else {
LoadApp(Apps::Timer, DisplayApp::FullRefreshDirections::Down);