diff options
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/stm32.toolchain.cmake | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/cmake/stm32.toolchain.cmake b/cmake/stm32.toolchain.cmake index 8e380fe..05a9090 100644 --- a/cmake/stm32.toolchain.cmake +++ b/cmake/stm32.toolchain.cmake @@ -22,12 +22,17 @@ set(CMAKE_SYSTEM_PROCESSOR arm) set(CMAKE_CROSSCOMPILING 1) set(TARGET_FLAGS "-mcpu=cortex-m3 -mthumb") -set(BASE_FLAGS "-O3 -ffreestanding -Wall -Wextra -g -ffunction-sections -fdata-sections ${TARGET_FLAGS}") + +set(o_level "$<TARGET_PROPERTY:O_LEVEL>") +add_compile_options("$<$<BOOL:${o_level}>:-O${o_level}>$<$<NOT:$<BOOL:${o_level}>>:-O3>") +unset(o_level) + +set(BASE_FLAGS "-ffreestanding -Wall -Wextra -g -ffunction-sections -fdata-sections ${TARGET_FLAGS}") set(CMAKE_C_FLAGS "${BASE_FLAGS}" CACHE STRING "c flags") set(CMAKE_CXX_FLAGS "${BASE_FLAGS} -fno-exceptions -fno-rtti -felide-constructors -std=c++14" CACHE STRING "c++ flags") -set(LINKER_FLAGS "-O3 -nostdlib -Wl,--gc-sections ${TARGET_FLAGS}") +set(LINKER_FLAGS "-nostdlib -Wl,--gc-sections ${TARGET_FLAGS}") #set(LINKER_LIBS "-larm_cortexM4l_math -lm") set(CMAKE_EXE_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" FORCE) |