1e73427f66
This adds a new counter tool to be able to test various watch events. A flexible watch array can be populated from command line, each field may be tuned with a dedicated command line sub-option in "--watch" string. Several watch events can be defined, each can have specific watch options, by using "--watch <watch 1 options> --watch <watch 2 options>". Watch options is a comma separated list. It also comes with a simple default watch (to monitor overflow/underflow events), used when no watch parameters are provided. It's equivalent to: counter_watch_events -w comp_count,scope_count,evt_ovf_udf The print_usage() routine proposes another example, from the command line, which generates a 2 elements watch array, to monitor: - overflow underflow events - capture events, on channel 3, that reads read captured data by specifying the component id (capture3_component_id being 7 here). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://lore.kernel.org/r/20231213173117.4174511-2-fabrice.gasnier@foss.st.com Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
1.8 KiB
SPDX-License-Identifier: GPL-2.0
include ../scripts/Makefile.include
bindir ?= /usr/bin
ifeq ($(srctree),) srctree := $(patsubst %/,%,$(dir $(CURDIR))) srctree := $(patsubst %/,%,$(dir $(srctree))) endif
Do not use make's built-in rules
(this improves performance and avoids hard-to-debug behaviour);
MAKEFLAGS += -r
override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
-I$(srctree)/tools/include
ALL_TARGETS := counter_example counter_watch_events ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
all: $(ALL_PROGRAMS)
export srctree OUTPUT CC LD CFLAGS include $(srctree)/tools/build/Makefile.include
We need the following to be outside of kernel tree
$(OUTPUT)include/linux/counter.h: ../../include/uapi/linux/counter.h mkdir -p $(OUTPUT)include/linux 2>&1 || true ln -sf $(CURDIR)/../../include/uapi/linux/counter.h $@
prepare: $(OUTPUT)include/linux/counter.h
COUNTER_EXAMPLE := $(OUTPUT)counter_example.o $(COUNTER_EXAMPLE): prepare FORCE $(Q)$(MAKE) $(build)=counter_example $(OUTPUT)counter_example: $(COUNTER_EXAMPLE) $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
COUNTER_WATCH_EVENTS := $(OUTPUT)counter_watch_events.o $(COUNTER_WATCH_EVENTS): prepare FORCE $(Q)$(MAKE) $(build)=counter_watch_events $(OUTPUT)counter_watch_events: $(COUNTER_WATCH_EVENTS) $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
clean: rm -f $(ALL_PROGRAMS) rm -rf $(OUTPUT)include/linux/counter.h rm -df $(OUTPUT)include/linux rm -df $(OUTPUT)include find $(or $(OUTPUT),.) -name '.o' -delete -o -name '..d' -delete find $(or $(OUTPUT),.) -name '.*.o.cmd' -delete
install: $(ALL_PROGRAMS)
install -d -m 755 $(DESTDIR)$(bindir);
for program in $(ALL_PROGRAMS); do
install $$program $(DESTDIR)$(bindir);
done
FORCE:
.PHONY: all install clean FORCE prepare