allow to skip CPU_CORE

Author: hathach

.github/workflows/build_iar.yml

@@ -47,7 +47,7 @@ jobs:
       run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
-      run: python3 tools/build_family.py ${{ matrix.family }} CC=iccarm
+      run: python3 tools/build_family.py ${{ matrix.family }} TOOLCHAIN=iar
 
   cmake:
     runs-on: [self-hosted, Linux, X64, hifiphile]

examples/make.mk

@@ -137,5 +137,10 @@ else ifeq ($(LOGGER),swo)
   CFLAGS += -DLOGGER_SWO
 endif
 
+# CPU specific flags
+ifdef CPU_CORE
+include $(TOP)/tools/make/cpu/$(CPU_CORE).mk
+endif
+
 # toolchain specific
 include $(TOP)/tools/make/toolchain/arm_$(TOOLCHAIN).mk

tools/build_family.py

@@ -11,7 +11,7 @@
 
 build_separator = '-' * 106
 
-make_iar_option = 'CC=iccarm'
+make_iar_option = 'TOOLCHAIN=iar'
 
 def filter_with_input(mylist):
     if len(sys.argv) > 1:

tools/make/toolchain/arm_gcc.mk

@@ -9,9 +9,6 @@ GDB = $(CROSS_COMPILE)gdb
 OBJCOPY = $(CROSS_COMPILE)objcopy
 SIZE = $(CROSS_COMPILE)size
 
-# CPU specific flags
-include $(TOP)/tools/make/cpu/$(CPU_CORE).mk
-
 # ---------------------------------------
 # Compiler Flags
 # ---------------------------------------

tools/make/toolchain/arm_iar.mk

@@ -4,8 +4,6 @@ LD = ilinkarm
 OBJCOPY = ielftool --silent
 SIZE = size
 
-include $(TOP)/tools/make/cpu/$(CPU_CORE).mk
-
 # Enable extension mode (gcc compatible)
 CFLAGS += -e --debug --silent