clang g0, g4

hw/bsp/stm32g4/family.cmake

@@ -1,9 +1,5 @@
 include_guard()
 
-if (NOT BOARD)
-  message(FATAL_ERROR "BOARD not specified")
-endif ()
-
 set(ST_FAMILY g4)
 set(ST_PREFIX stm32${ST_FAMILY}xx)
 
@@ -32,7 +28,10 @@ function(add_board_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(${BOARD_TARGET} STATIC
@@ -59,9 +58,12 @@ function(add_board_target BOARD_TARGET)
     target_link_options(${BOARD_TARGET} PUBLIC
       "LINKER:--script=${LD_FILE_GNU}"
       -nostartfiles
-      # nanolib
       --specs=nosys.specs --specs=nano.specs
       )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_Clang}"
+      )
   elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
     target_link_options(${BOARD_TARGET} PUBLIC
       "LINKER:--config=${LD_FILE_IAR}"