clang l4

hw/bsp/stm32l4/family.cmake

@@ -1,9 +1,5 @@
 include_guard()
 
-if (NOT BOARD)
-  message(FATAL_ERROR "BOARD not specified")
-endif ()
-
 set(ST_FAMILY l4)
 set(ST_PREFIX stm32${ST_FAMILY}xx)
 
@@ -29,7 +25,10 @@ function(add_board_target BOARD_TARGET)
   if (NOT TARGET ${BOARD_TARGET})
     # Startup & Linker script
     set(STARTUP_FILE_GNU ${ST_CMSIS}/Source/Templates/gcc/startup_${MCU_VARIANT}.s)
+    set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
     set(STARTUP_FILE_IAR ${ST_CMSIS}/Source/Templates/iar/startup_${MCU_VARIANT}.s)
+
+    set(LD_FILE_Clang ${LD_FILE_GNU})
     set(LD_FILE_IAR ${ST_CMSIS}/Source/Templates/iar/linker/${MCU_VARIANT}_flash.icf)
 
     add_library(${BOARD_TARGET} STATIC
@@ -52,10 +51,8 @@ function(add_board_target BOARD_TARGET)
       ${ST_CMSIS}/Include
       ${ST_HAL_DRIVER}/Inc
       )
-    target_compile_options(${BOARD_TARGET} PUBLIC
-      )
-    target_compile_definitions(${BOARD_TARGET} PUBLIC
-      )
+#    target_compile_options(${BOARD_TARGET} PUBLIC)
+#    target_compile_definitions(${BOARD_TARGET} PUBLIC)
 
     update_board(${BOARD_TARGET})
 
@@ -63,9 +60,11 @@ function(add_board_target BOARD_TARGET)
       target_link_options(${BOARD_TARGET} PUBLIC
         "LINKER:--script=${LD_FILE_GNU}"
         -nostartfiles
-        # nanolib
-        --specs=nosys.specs
-        --specs=nano.specs
+        --specs=nosys.specs --specs=nano.specs
+        )
+    elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+      target_link_options(${BOARD_TARGET} PUBLIC
+        "LINKER:--script=${LD_FILE_Clang}"
         )
     elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
       target_link_options(${BOARD_TARGET} PUBLIC