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Michael Ellerman authored
This commit adds a test of instruction counting using the PMU on powerpc. Although the bulk of the code is architecture agnostic, the code needs to run a precisely sized loop which is implemented in assembler. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
cb96143d
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Makefile 391 B
noarg:
$(MAKE) -C ../
PROGS := count_instructions
EXTRA_SOURCES := ../harness.c event.c
all: $(PROGS)
$(PROGS): $(EXTRA_SOURCES)
# loop.S can only be built 64-bit
count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
$(CC) $(CFLAGS) -m64 -o $@ $^
run_tests: all
@-for PROG in $(PROGS); do \
./$$PROG; \
done;
clean:
rm -f $(PROGS) loop.o
.PHONY: all run_tests clean