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-rw-r--r--makefiles/firmware.mk200
1 files changed, 139 insertions, 61 deletions
diff --git a/makefiles/firmware.mk b/makefiles/firmware.mk
index a6c7e0f48..9a98d2bc6 100644
--- a/makefiles/firmware.mk
+++ b/makefiles/firmware.mk
@@ -1,8 +1,5 @@
#
-# Generic Makefile for PX4 firmware.
-#
-# Currently this assumes that we're just compiling SRCS
-# and then linking the whole thing together.
+# Generic Makefile for PX4 firmware images.
#
# Requires:
#
@@ -12,6 +9,39 @@
#
# Optional:
#
+# APPS
+# Contains a list of application paths or path fragments used
+# to find applications. The names listed here are searched in
+# the following directories:
+# <absolute path>
+# $(APP_SEARCH_DIRS)
+# WORK_DIR
+# APP_SRC
+# PX4_APP_SRC
+#
+# Application directories are expected to contain an 'app.mk'
+# file which provides build configuration for the app. See
+# application.mk for more details.
+#
+# LIBS
+# Contains a list of library paths or path fragments used
+# to find libraries. The names listed here are searched in the
+# following directories:
+# <absolute path>
+# $(LIB_SEARCH_DIRS)
+# WORK_DIR
+# LIB_SRC
+# PX4_LIB_SRC
+#
+# Library directories are expected to contain a 'lib.mk'
+# file which provides build configuration for the library. See
+# library.mk for more details.
+#
+# BUILTIN_COMMANDS
+# Contains a list of built-in commands not explicitly provided
+# by applications / libraries. Each entry in this list is formatted
+# as <command>.<priority>.<stacksize>.<entrypoint>
+#
# PX4_BASE:
# Points to a PX4 distribution. Normally determined based on the
# path to this file.
@@ -29,6 +59,14 @@
# containing the files under the directory and linked into the final
# image.
#
+# APP_SEARCH_DIRS:
+# Extra directories to search first for APPS before looking in the
+# usual places.
+#
+# LIB_SEARCH_DIRS:
+# Extra directories to search first for LIBS before looking in the
+# usual places.
+#
################################################################################
# Paths and configuration
@@ -41,40 +79,66 @@
# If PX4_BASE wasn't set previously, work out what it should be
# and set it here now.
#
-export MK_DIR ?= $(dir $(lastword $(MAKEFILE_LIST)))
+MK_DIR ?= $(dir $(lastword $(MAKEFILE_LIST)))
ifeq ($(PX4_BASE),)
export PX4_BASE := $(abspath $(MK_DIR)/..)
$(info %% set PX4_BASE to $(PX4_BASE))
endif
#
+# Set a default target so that included makefiles or errors here don't
+# cause confusion.
+#
+# XXX We could do something cute here with $(DEFAULT_GOAL) if it's not one
+# of the maintenance targets and set CONFIG based on it.
+#
+all: firmware
+
+#
# Get path and tool config
#
include $(MK_DIR)/setup.mk
#
-# If WORK_DIR is not set, create a 'build' directory next to the
-# parent Makefile.
+# Locate the configuration file
#
-PARENT_MAKEFILE := $(lastword $(filter-out $(lastword $(MAKEFILE_LIST)),$(MAKEFILE_LIST)))
-ifeq ($(WORK_DIR),)
-export WORK_DIR := $(dir $(PARENT_MAKEFILE))/build
+ifeq ($(CONFIG),)
+$(error Missing configuration name or file (specify with CONFIG=<config>))
endif
-$(info %% WORK_DIR $(WORK_DIR))
+CONFIG_FILE := $(firstword $(wildcard $(CONFIG)) $(wildcard $(PX4_MK_DIR)/config_$(CONFIG).mk))
+ifeq ($(CONFIG_FILE),)
+$(error Can't find a config file called $(CONFIG) or $(PX4_MK_DIR)/config_$(CONFIG).mk)
+endif
+export CONFIG
+include $(CONFIG_FILE)
+$(info %% CONFIG $(CONFIG))
#
# Sanity-check the BOARD variable and then get the board config.
-# If BOARD is not set, but CONFIG is, use that.
+# If BOARD was not set by the configuration, extract it automatically.
#
# The board config in turn will fetch the toolchain configuration.
#
ifeq ($(BOARD),)
-ifeq ($(CONFIG),)
-$(error At least one of the BOARD or CONFIG variables must be set before including firmware.mk)
+BOARD := $(firstword $(subst _, ,$(CONFIG)))
endif
-BOARD := $(firstword $(subst _, ,$(CONFIG)))
+BOARD_FILE := $(wildcard $(PX4_MK_DIR)/board_$(BOARD).mk)
+ifeq ($(BOARD_FILE),)
+$(error Config $(CONFIG) references board $(BOARD), but no board definition file found)
endif
-include $(PX4_MK_DIR)/board_$(BOARD).mk
+export BOARD
+include $(BOARD_FILE)
+$(info %% BOARD $(BOARD))
+
+#
+# If WORK_DIR is not set, create a 'build' directory next to the
+# parent Makefile.
+#
+PARENT_MAKEFILE := $(lastword $(filter-out $(lastword $(MAKEFILE_LIST)),$(MAKEFILE_LIST)))
+ifeq ($(WORK_DIR),)
+export WORK_DIR := $(dir $(PARENT_MAKEFILE))/build
+endif
+$(info %% WORK_DIR $(WORK_DIR))
#
# Things that, if they change, might affect everything
@@ -82,43 +146,60 @@ include $(PX4_MK_DIR)/board_$(BOARD).mk
GLOBAL_DEPS += $(MAKEFILE_LIST)
################################################################################
-# NuttX libraries and paths
+# Applications
################################################################################
-#
-# Check that the NuttX archive for the selected board is available.
-#
-NUTTX_ARCHIVE := $(wildcard $(ARCHIVE_DIR)/$(BOARD).export)
-ifeq ($(NUTTX_ARCHIVE),)
-$(error The NuttX export archive for $(BOARD) is missing from $(ARCHIVE_DIR) - try 'make archives' in $(PX4_BASE))
-endif
+# where to look for applications
+APP_SEARCH_DIRS += $(WORK_DIR) $(APP_SRC) $(PX4_APP_SRC)
-#
-# The NuttX config header should always be present in the NuttX archive, and
-# if it changes, everything should be rebuilt. So, use it as the trigger to
-# unpack the NuttX archive.
-#
-NUTTX_EXPORT_DIR = $(WORK_DIR)/nuttx-export
-NUTTX_CONFIG_HEADER = $(NUTTX_EXPORT_DIR)/include/nuttx/config.h
-GLOBAL_DEPS += $(NUTTX_CONFIG_HEADER)
+# sort and unique the apps list
+APPS := $(sort $(APPS))
-#
-# Use the linker script from the NuttX export
-#
-LDSCRIPT = $(NUTTX_EXPORT_DIR)/build/ld.script
+# locate the first instance of an app by full path or by looking on the
+# application search path
+define APP_SEARCH
+ $(firstword $(wildcard $(1)/app.mk) \
+ $(foreach search_dir,$(APP_SEARCH_DIRS),$(wildcard $(search_dir)/$(1)/app.mk)) \
+ MISSING_$1)
+endef
-#
-# Add directories from the NuttX export to the relevant search paths
-#
-INCLUDE_DIRS += $(NUTTX_EXPORT_DIR)/include
-LIB_DIRS += $(NUTTX_EXPORT_DIR)/libs
-LIBS += -lapps -lnuttx
-LINK_DEPS += $(wildcard $(addsuffix /*.a,$(LIB_DIRS)))
+APP_MKFILES := $(foreach app,$(APPS),$(call APP_SEARCH,$(app)))
+MISSING_APPS := $(subst MISSING_,,$(filter MISSING_%,$(APP_MKFILES)))
+ifneq ($(MISSING_APPS),)
+$(error Can't find application(s): $(MISSING_APPS))
+endif
+
+APP_OBJS := $(foreach path,$(dir $(APP_MKFILES)),$(WORK_DIR)/$(path)/app.pre.o)
+
+$(APP_OBJS): relpath = $(patsubst $(WORK_DIR)/%,%,$@)
+$(APP_OBJS): mkfile = $(patsubst %/app.pre.o,%/app.mk,$(relpath))
+$(APP_OBJS): $(GLOBAL_DEPS) $(NUTTX_CONFIG_HEADER)
+ @echo %%
+ @echo %% Building app in $(relpath) using $(mkfile)
+ @echo %%
+ $(Q) make -f $(PX4_MK_DIR)/application.mk \
+ APP_WORK_DIR=$(dir $@) \
+ APP_OBJ=$@ \
+ APP_MK=$(mkfile) \
+ app
+
+APP_CLEANS := $(foreach path,$(dir $(APP_MKFILES)),$(WORK_DIR)/$(path)/clean)
+
+.PHONY: $(APP_CLEANS)
+$(APP_CLEANS): relpath = $(patsubst $(WORK_DIR)/%,%,$@)
+$(APP_CLEANS): mkfile = $(patsubst %/clean,%/app.mk,$(relpath))
+$(APP_CLEANS):
+ @echo %% cleaning using $(mkfile)
+ $(Q) make -f $(PX4_MK_DIR)/application.mk \
+ APP_WORK_DIR=$(dir $@) \
+ APP_MK=$(mkfile) \
+ clean
-$(NUTTX_CONFIG_HEADER): $(NUTTX_ARCHIVE)
- @echo %% Unpacking $(NUTTX_ARCHIVE)
- $(Q) unzip -q -o -d $(WORK_DIR) $(NUTTX_ARCHIVE)
- $(Q) touch $@
+################################################################################
+# NuttX libraries and paths
+################################################################################
+
+include $(PX4_MK_DIR)/nuttx.mk
################################################################################
# ROMFS generation
@@ -149,7 +230,7 @@ $(ROMFS_CSRC): $(ROMFS_IMG)
@echo %% generating $@
$(Q) (cd $(dir $<) && xxd -i $(notdir $<)) > $@
-$(ROMFS_IMG): $(ROMFS_DEPS)
+$(ROMFS_IMG): $(ROMFS_DEPS) $(GLOBAL_DEPS)
@echo %% generating $@
$(Q) $(GENROMFS) -f $@ -d $(ROMFS_ROOT) -V "NSHInitVol"
@@ -163,8 +244,6 @@ endif
# Note that we can't just put builtin_commands.c in SRCS, as it's depended on by the
# NuttX export library. Instead, we have to treat it like a library.
#
-# XXX need to fix stack size numbers here so that apps can set them.
-#
# Builtin commands can be generated by the configuration, in which case they
# must refer to commands that already exist, or indirectly generated by applications
# when they are built.
@@ -181,7 +260,7 @@ endif
BUILTIN_CSRC = $(WORK_DIR)/builtin_commands.c
# add command definitions from apps
-BUILTIN_COMMANDS += $(subst COMMAND.,,$(notdir $(wildcard $(WORK_DIR)/builtin_commands/APP.*)))
+BUILTIN_COMMANDS += $(subst COMMAND.,,$(notdir $(wildcard $(WORK_DIR)/builtin_commands/COMMAND.*)))
# (BUILTIN_PROTO,<cmdspec>,<outputfile>)
define BUILTIN_PROTO
@@ -193,7 +272,7 @@ define BUILTIN_DEF
echo ' {"$(word 1,$1)", $(word 2,$1), $(word 3,$1), $(word 4,$1)},' >> $2;
endef
-$(BUILTIN_CSRC): $(MAKEFILE_LIST)
+$(BUILTIN_CSRC): $(GLOBAL_DEPS)
@echo %% generating $@
$(Q) echo '/* builtin command list - automatically generated, do not edit */' > $@
$(Q) echo '#include <nuttx/config.h>' >> $@
@@ -209,7 +288,7 @@ BUILTIN_OBJ = $(BUILTIN_CSRC:.c=.o)
LIBS += $(BUILTIN_OBJ)
LINK_DEPS += $(BUILTIN_OBJ)
-$(BUILTIN_OBJ): $(BUILTIN_CSRC) $(GLOBAL_DEPS)
+$(BUILTIN_OBJ): $(BUILTIN_CSRC)
$(Q) $(call COMPILE,$<,$@)
################################################################################
@@ -239,7 +318,7 @@ PRODUCT_BUNDLE = $(WORK_DIR)/firmware.px4
PRODUCT_BIN = $(WORK_DIR)/firmware.bin
PRODUCT_SYM = $(WORK_DIR)/firmware.sym
-.PHONY: all
+.PHONY: firmware
firmware: $(PRODUCT_BUNDLE)
#
@@ -254,15 +333,12 @@ OBJS := $(foreach src,$(SRCS),$(WORK_DIR)/$(src).o)
$(OBJS): $(GLOBAL_DEPS)
$(filter %.c.o,$(OBJS)): $(WORK_DIR)/%.c.o: %.c
- @mkdir -p $(dir $@)
$(call COMPILE,$<,$@)
$(filter %.cpp.o,$(OBJS)): $(WORK_DIR)/%.cpp.o: %.cpp $(GLOBAL_DEPS)
- @mkdir -p $(dir $@)
$(call COMPILEXX,$<,$@)
$(filter %.S.o,$(OBJS)): $(WORK_DIR)/%.S.o: %.S $(GLOBAL_DEPS)
- @mkdir -p $(dir $@)
$(call ASSEMBLE,$<,$@)
#
@@ -278,21 +354,23 @@ $(PRODUCT_BUNDLE): $(PRODUCT_BIN)
$(PRODUCT_BIN): $(PRODUCT_SYM)
$(call SYM_TO_BIN,$<,$@)
-$(PRODUCT_SYM): $(OBJS) $(GLOBAL_DEPS) $(LINK_DEPS)
- $(call LINK,$@,$(OBJS))
+$(PRODUCT_SYM): $(OBJS) $(APP_OBJS) $(GLOBAL_DEPS) $(LINK_DEPS) $(APP_MKFILES)
+ $(call LINK,$@,$(OBJS) $(APP_OBJS))
#
# Utility rules
#
+.PHONY: upload
upload: $(PRODUCT_BUNDLE) $(PRODUCT_BIN)
- $(Q) make -f $(PX4_MK_INCLUDE)/upload.mk \
+ $(Q) make -f $(PX4_MK_DIR)/upload.mk \
METHOD=serial \
PRODUCT=$(PRODUCT) \
BUNDLE=$(PRODUCT_BUNDLE) \
BIN=$(PRODUCT_BIN)
-clean:
+.PHONY: clean
+clean: $(APP_CLEANS)
@echo %% cleaning
$(Q) $(REMOVE) $(PRODUCT_BUNDLE) $(PRODUCT_BIN) $(PRODUCT_SYM)
$(Q) $(REMOVE) $(OBJS) $(DEP_INCLUDES)