fix make build due to clang changes

Author: hathach

examples/build_system/make/make.mk

@@ -20,8 +20,6 @@ ifndef TOOLCHAIN
   TOOLCHAIN = gcc
 endif
 
-$(info TOOLCHAIN: $(TOOLCHAIN))
-
 #-------------- TOP and CURRENT_PATH ------------
 
 # Set TOP to be the path to get from the current directory (where make was invoked) to the top of the tree.

hw/bsp/imxrt/family.mk

@@ -11,6 +11,7 @@ MCU_DIR = $(SDK_DIR)/devices/$(MCU_VARIANT)
 CFLAGS += \
   -D__ARMVFP__=0 \
   -D__ARMFPV5__=0 \
+  -D__STARTUP_CLEAR_BSS \
   -DXIP_EXTERNAL_FLASH=1 \
   -DXIP_BOOT_HEADER_ENABLE=1 \
   -DCFG_TUSB_MCU=OPT_MCU_MIMXRT1XXX
@@ -26,7 +27,9 @@ endif
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter -Wno-error=implicit-fallthrough -Wno-error=redundant-decls
 
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += \
+  -nostartfiles \
+  --specs=nosys.specs --specs=nano.specs
 
 # All source paths should be relative to the top level.
 LD_FILE ?= $(MCU_DIR)/gcc/$(MCU_VARIANT)xxxxx${MCU_CORE}_flexspi_nor.ld

hw/bsp/kinetis_k/family.mk

@@ -6,9 +6,12 @@ include $(TOP)/$(BOARD_PATH)/board.mk
 CPU_CORE ?= cortex-m4
 
 CFLAGS += \
+  -D__STARTUP_CLEAR_BSS \
   -DCFG_TUSB_MCU=OPT_MCU_KINETIS_K \
 
 LDFLAGS += \
+  -nostartfiles \
+  --specs=nosys.specs --specs=nano.specs \
   -Wl,--defsym,__stack_size__=0x400 \
   -Wl,--defsym,__heap_size__=0
 

hw/bsp/kinetis_kl/family.mk

@@ -6,9 +6,11 @@ include $(TOP)/$(BOARD_PATH)/board.mk
 CPU_CORE ?= cortex-m0plus
 
 CFLAGS += \
+  -D__STARTUP_CLEAR_BSS \
   -DCFG_TUSB_MCU=OPT_MCU_KINETIS_KL \
 
 LDFLAGS += \
+  -nostartfiles \
   -specs=nosys.specs -specs=nano.specs \
   -Wl,--defsym,__stack_size__=0x400 \
   -Wl,--defsym,__heap_size__=0

hw/bsp/lpc17/family.mk

@@ -18,7 +18,7 @@ CFLAGS += -Wno-error=strict-prototypes -Wno-error=cast-qual
 # caused by freeRTOS port !!
 CFLAGS += -Wno-error=maybe-uninitialized
 
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += --specs=nosys.specs --specs=nano.specs
 
 SRC_C += \
 	src/portable/nxp/lpc17_40/dcd_lpc17_40.c \
@@ -36,3 +36,4 @@ SRC_C += \
 INC += \
 	$(TOP)/$(BOARD_PATH) \
 	$(TOP)/$(MCU_DIR)/inc \
+	$(TOP)/lib/CMSIS_5/CMSIS/Core/Include \

hw/bsp/lpc18/family.mk

@@ -14,7 +14,7 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter -Wno-error=strict-prototypes -Wno-error=cast-qual
 
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += --specs=nosys.specs --specs=nano.specs
 
 SRC_C += \
 	src/portable/chipidea/ci_hs/dcd_ci_hs.c \
@@ -30,4 +30,5 @@ SRC_C += \
 INC += \
 	$(TOP)/$(BOARD_PATH) \
 	$(TOP)/$(MCU_DIR)/inc \
-	$(TOP)/$(MCU_DIR)/inc/config_18xx
+	$(TOP)/$(MCU_DIR)/inc/config_18xx \
+	$(TOP)/lib/CMSIS_5/CMSIS/Core/Include \

hw/bsp/lpc40/family.mk

@@ -15,7 +15,7 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=strict-prototypes -Wno-error=unused-parameter -Wno-error=cast-qual
 
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += --specs=nosys.specs --specs=nano.specs
 
 # All source paths should be relative to the top level.
 SRC_C += \
@@ -32,4 +32,5 @@ SRC_C += \
 
 INC += \
 	$(TOP)/$(MCU_DIR)/inc \
+	$(TOP)/lib/CMSIS_5/CMSIS/Core/Include \
 	$(TOP)/$(BOARD_PATH)

hw/bsp/lpc43/family.mk

@@ -18,7 +18,7 @@ CFLAGS += \
   -Wno-error=cast-qual \
   -Wno-error=incompatible-pointer-types \
 
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += --specs=nosys.specs --specs=nano.specs
 
 SRC_C += \
 	src/portable/chipidea/ci_hs/dcd_ci_hs.c \
@@ -36,4 +36,5 @@ SRC_C += \
 INC += \
   $(TOP)/$(BOARD_PATH) \
 	${TOP}/${SDK_DIR}/inc \
-	${TOP}/${SDK_DIR}/inc/config_43xx
+	${TOP}/${SDK_DIR}/inc/config_43xx \
+	$(TOP)/lib/CMSIS_5/CMSIS/Core/Include \

hw/bsp/lpc54/family.mk

@@ -7,6 +7,7 @@ MCU_DIR = $(SDK_DIR)/devices/$(MCU_VARIANT)
 
 CFLAGS += \
   -flto \
+  -D__STARTUP_CLEAR_BSS \
   -DCFG_TUSB_MCU=OPT_MCU_LPC54XXX \
   -DCFG_TUSB_MEM_ALIGN='__attribute__((aligned(64)))' \
 
@@ -23,7 +24,9 @@ endif
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter
 
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += \
+  -nostartfiles \
+  --specs=nosys.specs --specs=nano.specs
 
 SRC_C += \
 	src/portable/nxp/lpc_ip3511/dcd_lpc_ip3511.c \

hw/bsp/lpc55/family.mk

@@ -11,9 +11,10 @@ PORT ?= 1
 
 CFLAGS += \
   -flto \
+  -D__STARTUP_CLEAR_BSS \
   -DCFG_TUSB_MCU=OPT_MCU_LPC55XX \
   -DCFG_TUSB_MEM_ALIGN='__attribute__((aligned(64)))' \
-  -DBOARD_TUD_RHPORT=$(PORT)
+  -DBOARD_TUD_RHPORT=$(PORT) \
 
 ifeq ($(PORT), 1)
   $(info "PORT1 High Speed")
@@ -28,7 +29,9 @@ endif
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter -Wno-error=float-equal
 
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += \
+  -nostartfiles \
+  --specs=nosys.specs --specs=nano.specs \
 
 # All source paths should be relative to the top level.
 LD_FILE ?= $(MCU_DIR)/gcc/$(MCU_CORE)_flash.ld