Added link flags for stripping of symbols for release builds and the generation of link map for all builds

cmake/gcc_stm32.cmake

@@ -69,12 +69,12 @@ SET(CMAKE_CPPFILT "${TOOLCHAIN_BIN_DIR}/${TARGET_TRIPLET}-c++filt${TOOL_EXECUTAB
 SET(CMAKE_C_FLAGS_DEBUG "-Og -g" CACHE INTERNAL "c compiler flags debug")
 SET(CMAKE_CXX_FLAGS_DEBUG "-Og -g" CACHE INTERNAL "cxx compiler flags debug")
 SET(CMAKE_ASM_FLAGS_DEBUG "-g" CACHE INTERNAL "asm compiler flags debug")
-SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "" CACHE INTERNAL "linker flags debug")
+SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "-Xlinker -Map=output.map" CACHE INTERNAL "linker flags debug")
 
 SET(CMAKE_C_FLAGS_RELEASE "-Os -flto" CACHE INTERNAL "c compiler flags release")
 SET(CMAKE_CXX_FLAGS_RELEASE "-Os -flto" CACHE INTERNAL "cxx compiler flags release")
 SET(CMAKE_ASM_FLAGS_RELEASE "" CACHE INTERNAL "asm compiler flags release")
-SET(CMAKE_EXE_LINKER_FLAGS_RELEASE "-flto" CACHE INTERNAL "linker flags release")
+SET(CMAKE_EXE_LINKER_FLAGS_RELEASE "-Xlinker -Map=output.map -s -flto" CACHE INTERNAL "linker flags release")
 
 SET(CMAKE_FIND_ROOT_PATH "${TOOLCHAIN_PREFIX}/${TARGET_TRIPLET}" ${EXTRA_FIND_PATH})
 SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)