cmake/blackboard.cmake

@@ -1,14 +0,0 @@
-cmake_minimum_required(VERSION 3.13)
-
-set(TARGET_TRIPLET arm-none-eabi)
-set(CMAKE_SYSTEM_NAME Generic)
-
-set(BLACKBOARD_MACHINE_FLAGS "-mcpu=cortex-a9 -mfpu=vfpv3 -mfloat-abi=hard")
-
-set(CMAKE_ASM_FLAGS_INIT "${BLACKBOARD_MACHINE_FLAGS}")
-set(CMAKE_C_FLAGS_INIT "${BLACKBOARD_MACHINE_FLAGS}")
-set(CMAKE_CXX_FLAGS_INIT "${BLACKBOARD_MACHINE_FLAGS}")
-set(CMAKE_EXE_LINKER_FLAGS_INIT "${BLACKBOARD_MACHINE_FLAGS} -ffreestanding -nostdlib -nostdlib++")
-
-include("${CMAKE_CURRENT_LIST_DIR}/clang.cmake")
-

cmake/clang.cmake

@@ -1,42 +0,0 @@
-cmake_minimum_required(VERSION 3.13)
-
-find_program(CMAKE_ASM_COMPILER clang)
-find_program(CMAKE_C_COMPILER   clang)
-find_program(CMAKE_CXX_COMPILER clang++)
-
-# Get host triplet, in case the target isn't set we'll use it as a default
-execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpmachine OUTPUT_VARIABLE HOST_TRIPLET)
-message(STATUS "Host target triplet: ${HOST_TRIPLET}")
-
-if(NOT TARGET_TRIPLET)
-	message(WARNING "TARGET_TRIPLET not set, defaulting to host system (${HOST_TRIPLET})")
-	set(TARGET_TRIPLET ${HOST_TRIPLET})
-endif()
-
-# Get target processor from target triplet (first in triplet, ex. for arm-none-eabi -> arm)
-string(REGEX MATCH "^[^-]*" TARGET_ARCHITECTURE ${TARGET_TRIPLET})
-
-# We need to tell clang what our target is
-set(CMAKE_ASM_COMPILER_TARGET ${TARGET_TRIPLET})
-set(CMAKE_C_COMPILER_TARGET ${TARGET_TRIPLET})
-set(CMAKE_CXX_COMPILER_TARGET ${TARGET_TRIPLET})
-
-if(NOT CMAKE_SYSTEM_NAME)
-	# Cmake uses Generic as system name for embedded systems, use that here if
-	# working on embedded systems
-	message(WARNING "CMAKE_SYSTEM_NAME name not set, defaulting to host system name (${CMAKE_HOST_SYSTEM_NAME})")
-	set(CMAKE_SYSTEM_NAME ${CMAKE_HOST_SYSTEM_NAME})
-endif()
-
-if(NOT CMAKE_SYSTEM_VERSION)
-	set(CMAKE_SYSTEM_VERSION ${CMAKE_HOST_SYSTEM_VERSION})
-endif()
-
-if(NOT CMAKE_SYSTEM_PROCESSOR)
-	# Getting architecture from target triplet, should not be setting CMAKE_SYSTEM_PROCESSOR
-	set(CMAKE_SYSTEM_PROCESSOR ${TARGET_ARCHITECTURE})
-endif()
-
-message(STATUS "Target: ${TARGET_TRIPLET}")
-message(STATUS "Target system name: ${CMAKE_SYSTEM_NAME}")
-

src/main.s

@@ -1,5 +1,5 @@
 .text
-.global _start
+.global main
 
 @define constants, these can be used as symbols in your code
 .equ LED_CTL, 0x41210000
@@ -7,7 +7,7 @@
 
 @the set and equ directives are equivalent and can be used interchangeably
 
-_start:
+main:
 	ldr r1,=SW_DATA	@load switch address from constant
 	ldr r2,=LED_CTL	@load LED address from constant
 loop: