diff options
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/stm32.ld | 13 | ||||
| -rw-r--r-- | cmake/stm32.toolchain.cmake | 8 |
2 files changed, 15 insertions, 6 deletions
diff --git a/cmake/stm32.ld b/cmake/stm32.ld index fc69574..bafd520 100644 --- a/cmake/stm32.ld +++ b/cmake/stm32.ld @@ -16,7 +16,7 @@ SECTIONS { /* The first word has to be the initial stack pointer */ LONG(__initial_stack_pointer); - */init_high.cpp.obj(.isr_vectors) + KEEP(*/init_high.cpp.obj(.isr_vectors)) } >FLASH ASSERT(SIZEOF(.isr) > 100, "The isr_vectors section is too small") ASSERT(SIZEOF(.isr) < 1000, "The isr_vectors section is too big") @@ -29,11 +29,20 @@ SECTIONS *(.rodata*) } >FLASH + .init_arrays : + { + _init_array_start = .; + KEEP(*(.init_array)) + KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*))) + _init_array_end = .; + } >FLASH + . = ORIGIN(RAM); .data ALIGN(4) : { - *(.data*) + *(.data) + *(.data.*) } >RAM AT >FLASH .bss ALIGN(4) (NOLOAD) : diff --git a/cmake/stm32.toolchain.cmake b/cmake/stm32.toolchain.cmake index ab73d90..e595ec9 100644 --- a/cmake/stm32.toolchain.cmake +++ b/cmake/stm32.toolchain.cmake @@ -22,13 +22,13 @@ set(CMAKE_SYSTEM_PROCESSOR arm) set(CMAKE_CROSSCOMPILING 1) set(TARGET_FLAGS "-mcpu=cortex-m3 -mthumb") -set(BASE_FLAGS "-Wall -g -ffunction-sections -fdata-sections ${TARGET_FLAGS}") +set(BASE_FLAGS "-O3 -ffreestanding -nostdlib -Wall -Wextra -g -ffunction-sections -fdata-sections ${TARGET_FLAGS}") -set(CMAKE_C_FLAGS "${BASE_FLAGS}" CACHE STRING "c flags") # XXX Generate TIME_T dynamically. +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 ${TARGET_FLAGS}") -set(LINKER_LIBS "-larm_cortexM4l_math -lm") +set(LINKER_FLAGS "-O3 -Wl,--gc-sections ${TARGET_FLAGS}") +#set(LINKER_LIBS "-larm_cortexM4l_math -lm") set(CMAKE_EXE_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" FORCE) |