Michael Ellerman 7481cad474 selftests/powerpc: Add a test of counting larx/stcx
This is based on the count_instructions test.

However this one also counts the number of failed stcx's, and in
conjunction with knowing the size of the stcx loop, can calculate the
total number of instructions executed even in the face of
non-deterministic stcx failures.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200426114410.3917383-1-mpe@ellerman.id.au
2020-05-15 11:58:55 +10:00

51 lines
1.4 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
noarg:
$(MAKE) -C ../
TEST_GEN_PROGS := count_instructions count_stcx_fail l3_bank_test per_event_excludes
EXTRA_SOURCES := ../harness.c event.c lib.c ../utils.c
top_srcdir = ../../../../..
include ../../lib.mk
all: $(TEST_GEN_PROGS) ebb
$(TEST_GEN_PROGS): $(EXTRA_SOURCES)
# loop.S can only be built 64-bit
$(OUTPUT)/count_instructions: CFLAGS += -m64
$(OUTPUT)/count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
$(OUTPUT)/count_stcx_fail: CFLAGS += -m64
$(OUTPUT)/count_stcx_fail: loop.S $(EXTRA_SOURCES)
$(OUTPUT)/per_event_excludes: ../utils.c
DEFAULT_RUN_TESTS := $(RUN_TESTS)
override define RUN_TESTS
$(DEFAULT_RUN_TESTS)
TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests
endef
DEFAULT_EMIT_TESTS := $(EMIT_TESTS)
override define EMIT_TESTS
$(DEFAULT_EMIT_TESTS)
TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
endef
DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
override define INSTALL_RULE
$(DEFAULT_INSTALL_RULE)
TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install
endef
clean:
$(RM) $(TEST_GEN_PROGS) $(OUTPUT)/loop.o
TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean
ebb:
TARGET=$@; BUILD_TARGET=$$OUTPUT/$$TARGET; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $$TARGET all
.PHONY: all run_tests clean ebb