ardupilot/mk/sketch_sources.mk

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################################################################################
# Sketch
#
SRCSUFFIXES = *.cpp *.c *.S
# Sketch source files
SKETCHPDESRCS := $(wildcard $(SRCROOT)/*.pde $(SRCROOT)/*.ino)
SKETCHSRCS := $(wildcard $(addprefix $(SRCROOT)/,$(SRCSUFFIXES)))
SKETCHPDE := $(wildcard $(SRCROOT)/$(SKETCH).pde $(SRCROOT)/$(SKETCH).ino)
SKETCHCPP := $(BUILDROOT)/$(SKETCH).cpp
ifneq ($(words $(SKETCHPDE)),1)
$(error ERROR: sketch $(SKETCH) must contain exactly one of $(SKETCH).pde or $(SKETCH).ino)
endif
# Sketch object files
SKETCHOBJS := $(subst $(SRCROOT),$(BUILDROOT),$(SKETCHSRCS)) $(SKETCHCPP)
SKETCHOBJS := $(addsuffix .o,$(basename $(SKETCHOBJS)))
# List of input files to the sketch.cpp file in the order they should
# be appended to create it
SKETCHCPP_SRC := $(SKETCHPDE) $(sort $(filter-out $(SKETCHPDE),$(SKETCHPDESRCS)))
################################################################################
# Libraries
#
# Pick libraries to add to the include path and to link with based on
# #include directives in the sketchfiles.
#
# For example:
#
# #include <Foo.h>
#
# implies that there might be a Foo library.
#
# Note that the # and $ require special treatment to avoid upsetting
# make.
#
SEXPR = 's/^[[:space:]]*\#include[[:space:]][<\"]([^>\"./]+).*$$/\1/p'
ifeq ($(SYSTYPE),Darwin)
LIBTOKENS := $(sort $(shell cat $(SKETCHPDESRCS) $(SKETCHSRCS) | sed -nEe $(SEXPR)))
else
LIBTOKENS := $(sort $(shell cat $(SKETCHPDESRCS) $(SKETCHSRCS) | sed -nre $(SEXPR)))
endif
#
# Find sketchbook libraries referenced by the sketch.
#
# Include paths for sketch libraries
#
SKETCHLIBS := $(wildcard $(addprefix $(SKETCHBOOK)/libraries/,$(LIBTOKENS)))
SKETCHLIBNAMES := $(notdir $(SKETCHLIBS))
SKETCHLIBSRCDIRS := $(SKETCHLIBS) $(addsuffix /utility,$(SKETCHLIBS))
SKETCHLIBSRCS := $(wildcard $(foreach suffix,$(SRCSUFFIXES),$(addsuffix /$(suffix),$(SKETCHLIBSRCDIRS))))
SKETCHLIBOBJS := $(addsuffix .o,$(basename $(subst $(SKETCHBOOK),$(BUILDROOT),$(SKETCHLIBSRCS))))
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SKETCHLIBINCLUDES := $(addprefix -I,$(SRCROOT))
SKETCHLIBINCLUDES += $(addprefix -I,$(SKETCHLIBS))
SKETCHLIBSRCSRELATIVE := $(subst $(SKETCHBOOK)/,,$(SKETCHLIBSRCS))
ifeq ($(VERBOSE),)
v = @
else
v =
endif
showflags:
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@echo "HAL_BOARD=$(HAL_BOARD) HAL_BOARD_SUBTYPE=$(HAL_BOARD_SUBTYPE) TOOLCHAIN=$(TOOLCHAIN) EXTRAFLAGS=$(EXTRAFLAGS)"
#
# Build the sketch.cpp file
$(SKETCHCPP): showflags $(SKETCHCPP_SRC)
@echo "building $(SKETCHCPP)"
$(RULEHDR)
$(v)$(AWK) -v mode=header '$(SKETCH_SPLITTER)' $(SKETCHCPP_SRC) > $@.new
$(v)echo "#line 1 \"autogenerated\"" >> $@.new
$(v)$(AWK) '$(SKETCH_PROTOTYPER)' $(SKETCHCPP_SRC) >> $@.new
$(v)$(AWK) -v mode=body '$(SKETCH_SPLITTER)' $(SKETCHCPP_SRC) >> $@.new
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$(v)cmp $@ $@.new > /dev/null 2>&1 || mv $@.new $@
$(v)rm -f $@.new
# delete the sketch.cpp file if a processing error occurs
.DELETE_ON_ERROR: $(SKETCHCPP)
#
# The sketch splitter is an awk script used to split off the
# header and body of the concatenated .pde/.ino files. It also
# inserts #line directives to help in backtracking from compiler
# and debugger messages to the original source file.
#
# Note that # and $ require special treatment here to avoid upsetting
# make.
#
# This script requires BWK or GNU awk.
#
define SKETCH_SPLITTER
BEGIN { \
scanning = 1; \
printing = (mode ~ "header") ? 1 : 0; \
} \
{ toggles = 1 } \
(FNR == 1) && printing { \
printf "#line %d \"%s\"\n", FNR, FILENAME; \
} \
/^[[:space:]]*\/\*/,/\*\// { \
toggles = 0; \
} \
/^[[:space:]]*$$/ || /^[[:space:]]*\/\/.*/ || /^\#.*$$/ { \
toggles = 0; \
} \
scanning && toggles { \
scanning = 0; \
printing = !printing; \
if (printing) { \
printf "#line %d \"%s\"\n", FNR, FILENAME; \
} \
} \
printing
endef
#
# The prototype scanner is an awk script used to generate function
# prototypes from the concantenated .pde/.ino files.
#
# Function definitions are expected to follow the form
#
# <newline><type>[<qualifier>...]<name>([<arguments>]){
#
# with whitespace permitted between the various elements. The pattern
# is assembled from separate subpatterns to make adjustments easier.
#
# Note that $ requires special treatment here to avoid upsetting make,
# and backslashes are doubled in the partial patterns to satisfy
# escaping rules.
#
# This script requires BWK or GNU awk.
#
define SKETCH_PROTOTYPER
BEGIN { \
RS="{"; \
type = "((\\n)|(^))[[:space:]]*[[:alnum:]_]+[[:space:]]+"; \
qualifiers = "([[:alnum:]_\\*&]+[[:space:]]*)*"; \
name = "[[:alnum:]_]+[[:space:]]*"; \
args = "\\([[:space:][:alnum:]_,&\\*\\[\\]]*\\)"; \
bodycuddle = "[[:space:]]*$$"; \
pattern = type qualifiers name args bodycuddle; \
} \
match($$0, pattern) { \
proto = substr($$0, RSTART, RLENGTH); \
gsub("\n", " ", proto); \
printf "%s;\n", proto; \
}
endef
# common header for rules, prints what is being built
define RULEHDR
@echo %% $(subst $(BUILDROOT)/,,$@)
@mkdir -p $(dir $@)
endef