added cmakelists to build everything

Author: itzandroidtab

CMakeLists.txt

@@ -0,0 +1,95 @@
+# set minimum version of CMake.
+cmake_minimum_required(VERSION 3.13)
+
+# The Generic system name is used for embedded targets (targets without OS) in
+# CMake
+set(CMAKE_SYSTEM_NAME Generic)
+set(CMAKE_SYSTEM_PROCESSOR ARM)
+
+# Supress Error when trying to test the compiler
+set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
+set(BUILD_SHARED_LIBS OFF)
+
+# set project name and version
+project(flash_loader VERSION 0.0.1)
+
+# enable assembly
+enable_language(ASM)
+
+set(SOURCES
+    ${CMAKE_SOURCE_DIR}/entry/entry.c
+    ${CMAKE_SOURCE_DIR}/entry/cortex-vector.cpp
+    ${CMAKE_SOURCE_DIR}/flash/main.cpp
+    ${CMAKE_SOURCE_DIR}/flash/flash_device.cpp
+)
+
+set(HEADERS
+    ${CMAKE_SOURCE_DIR}/entry/entry.hpp
+)
+
+# add our executable
+add_executable(flash_loader
+    ${SOURCES} ${HEADERS} 
+)
+
+# enable C++20 support for the library
+target_compile_features(flash_loader PUBLIC cxx_std_20)
+
+# set the output filename
+set_target_properties(flash_loader PROPERTIES OUTPUT_NAME "flash_loader" SUFFIX ".elf")
+
+# compiler optimisations
+target_compile_options(flash_loader PRIVATE "-g")
+target_compile_options(flash_loader PRIVATE "-Os")
+
+# set the cpu options for the compiler
+target_compile_options(flash_loader PRIVATE "-march=armv7e-m")
+target_compile_options(flash_loader PRIVATE "-mcpu=cortex-m4")
+target_compile_options(flash_loader PRIVATE "-mthumb")
+
+# other compiler settings
+target_compile_options(flash_loader PRIVATE "-Wno-attributes")
+target_compile_options(flash_loader PRIVATE "-fno-non-call-exceptions")
+target_compile_options(flash_loader PRIVATE "-fno-common")
+target_compile_options(flash_loader PRIVATE "-ffunction-sections")
+target_compile_options(flash_loader PRIVATE "-fdata-sections")
+target_compile_options(flash_loader PRIVATE "-fno-exceptions")
+target_compile_options(flash_loader PRIVATE "-Wno-maybe-uninitialized")
+target_compile_options(flash_loader PRIVATE "-Wno-unused-local-typedefs")
+target_compile_options(flash_loader PRIVATE "-Wno-unused-but-set-variable")
+target_compile_options(flash_loader PRIVATE "-Wno-unused-function")
+target_compile_options(flash_loader PRIVATE "-fomit-frame-pointer")
+target_compile_options(flash_loader PRIVATE "-Wall")
+target_compile_options(flash_loader PRIVATE "-Werror")
+
+# set the c++ only options
+target_compile_options(flash_loader PUBLIC $<$<COMPILE_LANGUAGE:CXX>:-fno-threadsafe-statics>)
+target_compile_options(flash_loader PUBLIC $<$<COMPILE_LANGUAGE:CXX>:-fno-rtti>)
+target_compile_options(flash_loader PUBLIC $<$<COMPILE_LANGUAGE:CXX>:-fconcepts>)
+target_compile_options(flash_loader PUBLIC $<$<COMPILE_LANGUAGE:CXX>:-fno-use-cxa-get-exception-ptr>)
+target_compile_options(flash_loader PUBLIC $<$<COMPILE_LANGUAGE:CXX>:-fno-use-cxa-atexit>)
+
+# set the cpu options for the linker
+target_link_options(flash_loader PRIVATE "-march=armv7e-m")
+target_link_options(flash_loader PRIVATE "-mcpu=cortex-m4")
+target_link_options(flash_loader PRIVATE "-mthumb")
+
+# other linker options
+target_link_options(flash_loader PRIVATE "-ffunction-sections")
+target_link_options(flash_loader PRIVATE "-fdata-sections")
+target_link_options(flash_loader PUBLIC "-nostdlib")
+target_link_options(flash_loader PUBLIC "-nodefaultlibs")
+target_link_options(flash_loader PUBLIC "-nostartfiles")
+target_link_options(flash_loader PUBLIC "-Wl,--gc-sections")
+target_link_options(flash_loader PUBLIC "-Wl,-fatal-warnings")
+target_link_options(flash_loader PUBLIC "-Wl,-cref,-Map=flash_loader.map")
+target_link_options(flash_loader PUBLIC "-Wl,--print-memory-usage")
+
+# link to the linkerscript of the target cpu
+target_link_options(flash_loader PUBLIC "-T${CMAKE_SOURCE_DIR}/linkerscript.ld")
+
+# Custom commands for processing the build binary and show some statistics and debug info 
+add_custom_command(TARGET flash_loader DEPENDS ${CMAKE_BINARY_DIR}/flash_loader.elf POST_BUILD COMMAND arm-none-eabi-objcopy ARGS -O binary -R .bss -R .stack flash_loader.elf flash_loader.bin)
+add_custom_command(TARGET flash_loader DEPENDS ${CMAKE_BINARY_DIR}/flash_loader.elf POST_BUILD COMMAND arm-none-eabi-objdump ARGS -C -S flash_loader.elf > flash_loader.lss)
+add_custom_command(TARGET flash_loader DEPENDS ${CMAKE_BINARY_DIR}/flash_loader.elf POST_BUILD COMMAND arm-none-eabi-objdump ARGS -C -sj .flash_device -sj .bss -sj .data -sj .rodata -S flash_loader.elf > flash_loader.memory)
+add_custom_command(TARGET flash_loader DEPENDS ${CMAKE_BINARY_DIR}/flash_loader.elf POST_BUILD COMMAND arm-none-eabi-size ARGS -A flash_loader.elf -x)