mkimage-profiles/lib/report.mk

# enable make target tracing

ifdef REPORT
TRACE_PREFIX := trace:building
OLD_SHELL := $(SHELL)
SHELL = $(info $(TRACE_PREFIX) $@$(if $^$|, -> $^ $|))$(OLD_SHELL)
# piggyback BUILDDIR back into supervising environment
$(info $(TRACE_PREFIX) BUILDDIR = $(BUILDDIR))
endif
initial target tracing support and reporting The purpose is being able to examine particular target interdependency graph for a given image having been configured to avoid convoluted dependencies (loops in particular). The implementation is based on SHELL hook hint by John Graham-Cumming: http://cmcrossroads.com/ask-mr-make/6535-tracing-rule-execution-in-gnu-make 2012-03-19 15:42:10 +04:00			`# enable make target tracing`

			`ifdef REPORT`
			`TRACE_PREFIX := trace:building`
			`OLD_SHELL := $(SHELL)`
			`SHELL = $(info $(TRACE_PREFIX) $@$(if $^$\|, -> $^ $\|))$(OLD_SHELL)`
			`# piggyback BUILDDIR back into supervising environment`
			`$(info $(TRACE_PREFIX) BUILDDIR = $(BUILDDIR))`
			`endif`