diff options
Diffstat (limited to 'examples/make.mk')
| -rw-r--r-- | examples/make.mk | 110 |
1 files changed, 69 insertions, 41 deletions
diff --git a/examples/make.mk b/examples/make.mk index e02d226b6..d91263db9 100644 --- a/examples/make.mk +++ b/examples/make.mk @@ -2,57 +2,38 @@ # Common make definition for all examples # --------------------------------------- -# Build directory -BUILD := _build/$(BOARD) - -PROJECT := $(notdir $(CURDIR)) -BIN := $(TOP)/_bin/$(BOARD)/$(notdir $(CURDIR)) - -# Handy check parameter function -check_defined = \ - $(strip $(foreach 1,$1, \ - $(call __check_defined,$1,$(strip $(value 2))))) -__check_defined = \ - $(if $(value $1),, \ - $(error Undefined make flag: $1$(if $2, ($2)))) +#-------------- TOP and CURRENT_PATH ------------ -#-------------- Select the board to build for. ------------ +# Set TOP to be the path to get from the current directory (where make was +# invoked) to the top of the tree. $(lastword $(MAKEFILE_LIST)) returns +# the name of this makefile relative to where make was invoked. +THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST)) -# Board without family -ifneq ($(wildcard $(TOP)/hw/bsp/$(BOARD)/board.mk),) -BOARD_PATH := hw/bsp/$(BOARD) -FAMILY := -endif - -# Board within family -ifeq ($(BOARD_PATH),) - BOARD_PATH := $(subst $(TOP)/,,$(wildcard $(TOP)/hw/bsp/*/boards/$(BOARD))) - FAMILY := $(word 3, $(subst /, ,$(BOARD_PATH))) - FAMILY_PATH = hw/bsp/$(FAMILY) -endif +# strip off /tools/top.mk to get for example ../../.. +# and Set TOP to an absolute path +TOP = $(abspath $(subst make.mk,..,$(THIS_MAKEFILE))) -ifeq ($(BOARD_PATH),) - $(info You must provide a BOARD parameter with 'BOARD=') - $(error Invalid BOARD specified) -endif +# Set CURRENT_PATH to the relative path from TOP to the current directory, ie examples/device/cdc_msc_freertos +CURRENT_PATH = $(subst $(TOP)/,,$(abspath .)) -ifeq ($(FAMILY),) - include $(TOP)/hw/bsp/$(BOARD)/board.mk -else - # Include Family and Board specific defs - include $(TOP)/$(FAMILY_PATH)/family.mk +# Detect whether shell style is windows or not +# https://stackoverflow.com/questions/714100/os-detecting-makefile/52062069#52062069 +ifeq '$(findstring ;,$(PATH))' ';' +# PATH contains semicolon - so we're definitely on Windows. +CMDEXE := 1 - SRC_C += $(subst $(TOP)/,,$(wildcard $(TOP)/$(FAMILY_PATH)/*.c)) +# makefile shell commands should use syntax for DOS CMD, not unix sh +# Unfortunately, SHELL may point to sh or bash, which can't accept DOS syntax. +# We can't just use sh, because while sh and/or bash shell may be available, +# many Windows environments won't have utilities like realpath used below, so... +# Force DOS command shell on Windows. +SHELL := cmd.exe endif - #-------------- Cross Compiler ------------ # Can be set by board, default to ARM GCC CROSS_COMPILE ?= arm-none-eabi- -# Allow for -Os to be changed by board makefiles in case -Os is not allowed -CFLAGS_OPTIMIZED ?= -Os - ifeq ($(CC),iccarm) USE_IAR = 1 endif @@ -68,7 +49,7 @@ else CXX = $(CROSS_COMPILE)g++ AS = $(CC) -x assembler-with-cpp LD = $(CC) - + GDB = $(CROSS_COMPILE)gdb OBJCOPY = $(CROSS_COMPILE)objcopy SIZE = $(CROSS_COMPILE)size @@ -86,6 +67,50 @@ else PYTHON = python3 endif + +# Build directory +BUILD := _build/$(BOARD) + +PROJECT := $(notdir $(CURDIR)) +BIN := $(TOP)/_bin/$(BOARD)/$(notdir $(CURDIR)) + +# Handy check parameter function +check_defined = \ + $(strip $(foreach 1,$1, \ + $(call __check_defined,$1,$(strip $(value 2))))) +__check_defined = \ + $(if $(value $1),, \ + $(error Undefined make flag: $1$(if $2, ($2)))) + +#-------------- Select the board to build for. ------------ + +# Board without family +ifneq ($(wildcard $(TOP)/hw/bsp/$(BOARD)/board.mk),) +BOARD_PATH := hw/bsp/$(BOARD) +FAMILY := +endif + +# Board within family +ifeq ($(BOARD_PATH),) + BOARD_PATH := $(subst $(TOP)/,,$(wildcard $(TOP)/hw/bsp/*/boards/$(BOARD))) + FAMILY := $(word 3, $(subst /, ,$(BOARD_PATH))) + FAMILY_PATH = hw/bsp/$(FAMILY) +endif + +ifeq ($(BOARD_PATH),) + $(info You must provide a BOARD parameter with 'BOARD=') + $(error Invalid BOARD specified) +endif + +ifeq ($(FAMILY),) + include $(TOP)/hw/bsp/$(BOARD)/board.mk +else + # Include Family and Board specific defs + include $(TOP)/$(FAMILY_PATH)/family.mk + + SRC_C += $(subst $(TOP)/,,$(wildcard $(TOP)/$(FAMILY_PATH)/*.c)) +endif + #-------------- Source files and compiler flags -------------- # Include all source C in family & board folder @@ -94,6 +119,9 @@ SRC_C += $(subst $(TOP)/,,$(wildcard $(TOP)/$(BOARD_PATH)/*.c)) INC += $(TOP)/$(FAMILY_PATH) +# Allow for -Os to be changed by board makefiles in case -Os is not allowed +CFLAGS_OPTIMIZED ?= -Os + # GCC Compiler Flags GCC_CFLAGS += \ -ggdb \ |