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-rw-r--r--examples/device/cdc_msc_hid/Makefile34
1 files changed, 27 insertions, 7 deletions
diff --git a/examples/device/cdc_msc_hid/Makefile b/examples/device/cdc_msc_hid/Makefile
index 0071301f3..86587dd47 100644
--- a/examples/device/cdc_msc_hid/Makefile
+++ b/examples/device/cdc_msc_hid/Makefile
@@ -12,6 +12,13 @@ else
endif
endif
+# Verbose mode (V=). 0: default, 1: print out CFLAG, LDFLAG 2: print all compile command
+ifeq ("$(V)","2")
+ QUIET =
+else
+ QUIET = @
+endif
+
# If the build directory is not given, make it reflect the board name.
BUILD ?= build-$(BOARD)
@@ -49,11 +56,13 @@ CFLAGS += \
-Wno-deprecated-declarations \
-Wnested-externs \
-Wunreachable-code \
- -Wcast-align \
-Wno-error=lto-type-mismatch \
-ffunction-sections \
-fdata-sections
+# This causes lots of warning with nrf5x build due to nrfx code
+# CFLAGS += -Wcast-align
+
#Debugging/Optimization
ifeq ($(DEBUG), 1)
CFLAGS += -O0 -ggdb
@@ -61,8 +70,17 @@ else
CFLAGS += -flto -Os
endif
-CFLAGS += $(INC) -Wall -Werror -std=gnu11 -nostdlib -DBOARD_$(shell echo $(BOARD) | tr a-z\- A-Z_)
-LDFLAGS += $(CFLAGS) -nostartfiles -fshort-enums -Wl,-T,$(TOP)/$(LD_FILE) -Wl,[email protected] -Wl,-cref -Wl,-gc-sections -specs=nosys.specs -specs=nano.specs
+CFLAGS += $(INC) -Wall -Werror -std=gnu11 -DBOARD_$(shell echo $(BOARD) | tr a-z\- A-Z_)
+LDFLAGS += $(CFLAGS) -fshort-enums -Wl,-T,$(TOP)/$(LD_FILE) -Wl,[email protected] -Wl,-cref -Wl,-gc-sections -specs=nosys.specs -specs=nano.specs
+
+ifeq ("$(V)","1")
+$(info CFLAGS $(CFLAGS))
+$(info )
+$(info LDFLAGS $(LDFLAGS))
+$(info )
+$(info ASFLAGS $(ASFLAGS))
+$(info )
+endif
LIBS = -lgcc -lc -lm -lnosys
@@ -91,6 +109,8 @@ SRC_C += $(LIB_SOURCE)
# Assembly files can be name with upper case .S, convert it to .s
SRC_S := $(SRC_S:.S=.s)
+# Due to GCC LTO bug https://bugs.launchpad.net/gcc-arm-embedded/+bug/1747966
+# assembly file should be placed first in linking order
OBJ += $(addprefix $(BUILD)/obj/, $(SRC_S:.s=.o))
OBJ += $(addprefix $(BUILD)/obj/, $(SRC_C:.c=.o))
@@ -105,7 +125,7 @@ $(OBJ_DIRS):
$(BUILD)/$(BOARD)-firmware.elf: $(OBJ)
@echo LINK $@
- $(CC) -o $@ $(LDFLAGS) $^ -Wl,--start-group $(LIBS) -Wl,--end-group
+ $(QUIET)$(CC) -o $@ $(LDFLAGS) $^ -Wl,--start-group $(LIBS) -Wl,--end-group
$(BUILD)/$(BOARD)-firmware.bin: $(BUILD)/$(BOARD)-firmware.elf
@echo CREATE $@
@@ -121,7 +141,7 @@ $(BUILD)/$(BOARD)-firmware.hex: $(BUILD)/$(BOARD)-firmware.elf
vpath %.c . $(TOP)
$(BUILD)/obj/%.o: %.c
@echo CC $(notdir $@)
- @$(CC) $(CFLAGS) -c -MD -o $@ $<
+ $(QUIET)$(CC) $(CFLAGS) -c -MD -o $@ $<
@# The following fixes the dependency file.
@# See http://make.paulandlesley.org/autodep.html for details.
@# Regex adjusted from the above to play better with Windows paths, etc.
@@ -134,13 +154,13 @@ $(BUILD)/obj/%.o: %.c
vpath %.s . $(TOP)
$(BUILD)/obj/%.o: %.s
@echo AS $(notdir $@)
- @$(CC) -x assembler-with-cpp $(ASFLAGS) -c -o $@ $<
+ $(QUIET)$(CC) -x assembler-with-cpp $(ASFLAGS) -c -o $@ $<
# ASM sources upper case .S
vpath %.S . $(TOP)
$(BUILD)/obj/%.o: %.S
@echo AS $(notdir $@)
- @$(CC) -x assembler-with-cpp $(ASFLAGS) -c -o $@ $<
+ $(QUIET)$(CC) -x assembler-with-cpp $(ASFLAGS) -c -o $@ $<
# Flash binary using Jlink
ifeq ($(OS),Windows_NT)