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-rw-r--r--makefiles/firmware.mk71
-rw-r--r--makefiles/gnu-arm-eabi.mk177
-rw-r--r--makefiles/px4fmu.mk10
-rw-r--r--makefiles/px4fmu_default.mk7
-rw-r--r--makefiles/px4io.mk10
-rw-r--r--makefiles/px4io_default.mk7
-rw-r--r--platforms/empty.c3
7 files changed, 285 insertions, 0 deletions
diff --git a/makefiles/firmware.mk b/makefiles/firmware.mk
new file mode 100644
index 000000000..34741e79e
--- /dev/null
+++ b/makefiles/firmware.mk
@@ -0,0 +1,71 @@
+#
+# Generic Makefile for PX4 firmware.
+#
+# Currently this assumes that we're just compiling SRCS
+# and then linking the whole thing together.
+#
+
+#
+# Work out where this file is, so we can find other makefiles in the
+# same directory.
+#
+export PX4_MK_INCLUDE ?= $(dir $(lastword $(MAKEFILE_LIST)))
+
+#
+# Use the linker script from the NuttX export
+#
+LDSCRIPT = $(WORK_DIR)/nuttx-export/build/ld.script
+
+#
+# Add directories from the NuttX export to the relevant search paths
+#
+INCLUDE_DIRS += $(WORK_DIR)/nuttx-export/include
+LIB_DIRS += $(WORK_DIR)/nuttx-export/libs
+LIBS += -lapps -lnuttx
+
+#
+# Things that, if they change, might affect everything
+#
+GLOBAL_DEPS += $(MAKEFILE_LIST)
+
+#
+# Include the platform configuration
+#
+include $(PX4_MK_INCLUDE)/$(PLATFORM).mk
+
+#
+# What we're going to build
+#
+PRODUCT_BIN = $(WORK_DIR)/firmware.bin
+PRODUCT_SYM = $(WORK_DIR)/firmware.sym
+PRODUCTS = $(PRODUCT_BIN) $(PRODUCT_SYM)
+
+.PHONY: all
+all: $(PRODUCTS)
+
+#
+# Rules for building objects
+#
+OBJS = $(foreach src,$(SRCS),$(WORK_DIR)/$(src).o)
+
+$(filter %.c.o,$(OBJS)): $(WORK_DIR)/%.c.o: %.c
+ @echo compile $<
+ @mkdir -p $(dir $@)
+ $(call COMPILE,$<,$@)
+
+$(filter %.cpp.o,$(OBJS)): $(WORK_DIR)/%.cpp.o: %.cpp
+ @mkdir -p $(dir $@)
+ $(call COMPILEXX,$<,$@)
+
+$(filter %.S.o,$(OBJS)): $(WORK_DIR)/%.S.o: %.S
+ @mkdir -p $(dir $@)
+ $(call ASSEMBLE,$<,$@)
+
+-include $(DEP_INCLUDES)
+
+$(PRODUCT_BIN): $(PRODUCT_SYM)
+ $(call SYM_TO_BIN,$<,$@)
+
+$(PRODUCT_SYM): $(OBJS) $(GLOBAL_DEPS) $(LINK_DEPS)
+ $(call LINK,$@,$(OBJS))
+
diff --git a/makefiles/gnu-arm-eabi.mk b/makefiles/gnu-arm-eabi.mk
new file mode 100644
index 000000000..4dc337c9f
--- /dev/null
+++ b/makefiles/gnu-arm-eabi.mk
@@ -0,0 +1,177 @@
+#
+# Definitions for a generic GNU ARM-EABI toolchain
+#
+
+CROSSDEV = arm-none-eabi-
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(CROSSDEV)ar rcs
+NM = $(CROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+# XXX this is pulled pretty directly from the fmu Make.defs - needs cleanup
+
+MAXOPTIMIZATION = -O3
+
+# base CPU flags
+ARCHCPUFLAGS_CORTEXM4F = -mcpu=cortex-m4 \
+ -mthumb \
+ -march=armv7e-m \
+ -mfpu=fpv4-sp-d16 \
+ -mfloat-abi=hard
+
+ARCHCPUFLAGS_CORTEXM4 = -mcpu=cortex-m4 \
+ -mthumb \
+ -march=armv7e-m \
+ -mfloat-abi=soft
+
+ARCHCPUFLAGS_CORTEXM3 = -mcpu=cortex-m3 \
+ -mthumb \
+ -march=armv6-m \
+ -mfloat-abi=soft
+
+ARCHCPUFLAGS = $(ARCHCPUFLAGS_$(CONFIG_ARCH))
+
+# optimisation flags
+ARCHOPTIMIZATION = $(MAXOPTIMIZATION) \
+ -fno-strict-aliasing \
+ -fno-strength-reduce \
+ -fomit-frame-pointer \
+ -funsafe-math-optimizations \
+ -fno-builtin-printf \
+ -ffunction-sections \
+ -fdata-sections
+ifeq ("${CONFIG_DEBUG_SYMBOLS}","y")
+ARCHOPTIMIZATION += -g
+endif
+
+# enable precise stack overflow tracking
+# note - requires corresponding support in NuttX
+INSTRUMENTATIONDEFINES = -finstrument-functions \
+ -ffixed-r10
+
+ARCHCFLAGS = -std=gnu99
+ARCHCXXFLAGS = -fno-exceptions -fno-rtti -std=gnu++0x
+ARCHWARNINGS = -Wall \
+ -Wextra \
+ -Wdouble-promotion \
+ -Wshadow \
+ -Wfloat-equal \
+ -Wframe-larger-than=1024 \
+ -Wpointer-arith \
+ -Wlogical-op \
+ -Wmissing-declarations \
+ -Wpacked \
+ -Wno-unused-parameter
+# -Wcast-qual - generates spurious noreturn attribute warnings, try again later
+# -Wconversion - would be nice, but too many "risky-but-safe" conversions in the code
+# -Wcast-align - would help catch bad casts in some cases, but generates too many false positives
+
+ARCHCWARNINGS = $(ARCHWARNINGS) \
+ -Wbad-function-cast \
+ -Wstrict-prototypes \
+ -Wold-style-declaration \
+ -Wmissing-parameter-type \
+ -Wmissing-prototypes \
+ -Wnested-externs \
+ -Wunsuffixed-float-constants
+ARCHWARNINGSXX = $(ARCHWARNINGS)
+
+# pull in *just* libm from the toolchain ... this is grody
+LIBM = $(shell $(CC) $(ARCHCPUFLAGS) -print-file-name=libm.a)
+EXTRA_LIBS += $(LIBM)
+
+CFLAGS = $(ARCHCFLAGS) \
+ $(ARCHCWARNINGS) \
+ $(ARCHOPTIMIZATION) \
+ $(ARCHCPUFLAGS) \
+ $(ARCHINCLUDES) \
+ $(INSTRUMENTATIONDEFINES) \
+ $(ARCHDEFINES) \
+ $(EXTRADEFINES) \
+ -fno-common
+
+CXXFLAGS = $(ARCHCXXFLAGS) \
+ $(ARCHWARNINGSXX) \
+ $(ARCHOPTIMIZATION) \
+ $(ARCHCPUFLAGS) \
+ $(ARCHXXINCLUDES) \
+ $(INSTRUMENTATIONDEFINES) \
+ $(ARCHDEFINES) \
+ $(EXTRADEFINES)
+
+CPPFLAGS = $(ARCHINCLUDES) \
+ $(INSTRUMENTATIONDEFINES) \
+ $(ARCHDEFINES) \
+ $(EXTRADEFINES)
+
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+LDFLAGS += --warn-common \
+ --gc-sections \
+ -T $(LDSCRIPT) \
+ $(addprefix -L,$(LIB_DIRS))
+
+LIBGCC := $(shell $(CC) $(ARCHCPUFLAGS) -print-libgcc-file-name)
+
+
+# files that the final link depends on
+# XXX add libraries that we know about here...
+LINK_DEPS += $(LDSCRIPT)
+
+# files to include to get automated dependencies
+DEP_INCLUDES = $(subst .o,.d,$(OBJS))
+
+ifeq ($(V),)
+Q = @
+else
+Q =
+endif
+
+# compile C source $1 to object $2
+# as a side-effect, generate a dependency file
+define COMPILE
+ @echo "CC: $1"
+ $(Q) $(CC) -MD -c $(CFLAGS) $(abspath $1) -o $2
+endef
+
+# compile C++ source $1 to $2
+# as a side-effect, generate a dependency file
+define COMPILEXX
+ @echo "CXX: $1"
+ $(Q) $(CXX) -MD -c $(CXXFLAGS) $(abspath $1) -o $2
+endef
+
+# assemble $1 into $2
+define ASSEMBLE
+ @echo "AS: $1"
+ $(Q) $(CC) -c $(AFLAGS) $(abspath $1) -o $2
+endef
+
+# produce partially-linked $1 from files in $2
+define PRELINK
+ @echo "PRELINK: $1"
+ $(Q) $(LD) -Ur -o $1 $2 && $(OBJCOPY) --localize-hidden $1
+endef
+
+# update the archive $1 with the files in $2
+define ARCHIVE
+ @echo "AR: $2"
+ $(Q) $(AR) $1 $2
+endef
+
+# Link the objects in $2 into the binary $1
+define LINK
+ @echo "LINK: $1"
+ $(Q) $(LD) $(LDFLAGS) -o $1 --start-group $(LIBS) $(EXTRA_LIBS) $(LIBGCC) --end-group
+endef
+
+# convert $1 from a linked object to a raw binary
+define SYM_TO_BIN
+ @echo "BIN: $2"
+ $(Q) $(OBJCOPY) -O binary $1 $2
+endef
diff --git a/makefiles/px4fmu.mk b/makefiles/px4fmu.mk
new file mode 100644
index 000000000..75833de9f
--- /dev/null
+++ b/makefiles/px4fmu.mk
@@ -0,0 +1,10 @@
+#
+# Platform-specific definitions for the PX4FMU
+#
+
+#
+# Configure the toolchain
+#
+CONFIG_ARCH = CORTEXM4F
+
+include $(PX4_MK_INCLUDE)/gnu-arm-eabi.mk
diff --git a/makefiles/px4fmu_default.mk b/makefiles/px4fmu_default.mk
new file mode 100644
index 000000000..6e78126ff
--- /dev/null
+++ b/makefiles/px4fmu_default.mk
@@ -0,0 +1,7 @@
+#
+# Makefile for the px4fmu_default configuration
+#
+
+SRCS = $(PX4BASE)/platforms/empty.c
+
+include $(PX4BASE)/makefiles/firmware.mk
diff --git a/makefiles/px4io.mk b/makefiles/px4io.mk
new file mode 100644
index 000000000..8ea9582cb
--- /dev/null
+++ b/makefiles/px4io.mk
@@ -0,0 +1,10 @@
+#
+# Platform-specific definitions for the PX4IO
+#
+
+#
+# Configure the toolchain
+#
+CONFIG_ARCH = CORTEXM3
+
+include $(PX4_MK_INCLUDE)/gnu-arm-eabi.mk
diff --git a/makefiles/px4io_default.mk b/makefiles/px4io_default.mk
new file mode 100644
index 000000000..da480af09
--- /dev/null
+++ b/makefiles/px4io_default.mk
@@ -0,0 +1,7 @@
+#
+# Makefile for the px4io_default configuration
+#
+
+SRCS = $(PX4BASE)/platforms/empty.c
+
+include $(PX4BASE)/makefiles/firmware.mk
diff --git a/platforms/empty.c b/platforms/empty.c
new file mode 100644
index 000000000..139531354
--- /dev/null
+++ b/platforms/empty.c
@@ -0,0 +1,3 @@
+/*
+ * This is an empty C source file, used when building default firmware configurations.
+ */