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-rw-r--r--tools/testing/selftests/lib.mk156
1 files changed, 156 insertions, 0 deletions
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
new file mode 100644
index 000000000..aa646e066
--- /dev/null
+++ b/tools/testing/selftests/lib.mk
@@ -0,0 +1,156 @@
+# This mimics the top-level Makefile. We do it explicitly here so that this
+# Makefile can operate with or without the kbuild infrastructure.
+ifneq ($(LLVM),)
+ifneq ($(filter %/,$(LLVM)),)
+LLVM_PREFIX := $(LLVM)
+else ifneq ($(filter -%,$(LLVM)),)
+LLVM_SUFFIX := $(LLVM)
+endif
+
+CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi
+CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu
+CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl
+CLANG_TARGET_FLAGS_i386 := i386-linux-gnu
+CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu
+CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu
+CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu
+CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu
+CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu
+CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu
+CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu
+CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH))
+
+ifeq ($(CROSS_COMPILE),)
+ifeq ($(CLANG_TARGET_FLAGS),)
+$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
+else
+CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
+endif # CLANG_TARGET_FLAGS
+else
+CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
+endif # CROSS_COMPILE
+
+CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as
+else
+CC := $(CROSS_COMPILE)gcc
+endif # LLVM
+
+ifeq (0,$(MAKELEVEL))
+ ifeq ($(OUTPUT),)
+ OUTPUT := $(shell pwd)
+ DEFAULT_INSTALL_HDR_PATH := 1
+ endif
+endif
+selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
+top_srcdir = $(selfdir)/../../..
+
+ifeq ($(KHDR_INCLUDES),)
+KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
+endif
+
+# The following are built by lib.mk common compile rules.
+# TEST_CUSTOM_PROGS should be used by tests that require
+# custom build rule and prevent common build rule use.
+# TEST_PROGS are for test shell scripts.
+# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
+# and install targets. Common clean doesn't touch them.
+TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
+TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
+TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
+
+all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
+
+define RUN_TESTS
+ BASE_DIR="$(selfdir)"; \
+ . $(selfdir)/kselftest/runner.sh; \
+ if [ "X$(summary)" != "X" ]; then \
+ per_test_logging=1; \
+ fi; \
+ run_many $(1)
+endef
+
+run_tests: all
+ifdef building_out_of_srctree
+ @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
+ rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \
+ fi
+ @if [ "X$(TEST_PROGS)" != "X" ]; then \
+ $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
+ $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
+ else \
+ $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
+ fi
+else
+ @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
+endif
+
+define INSTALL_SINGLE_RULE
+ $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
+ $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/)
+endef
+
+define INSTALL_RULE
+ $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
+ $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
+ $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
+ $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
+ $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
+ $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
+ $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
+ $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
+endef
+
+install: all
+ifdef INSTALL_PATH
+ $(INSTALL_RULE)
+else
+ $(error Error: set INSTALL_PATH to use install)
+endif
+
+emit_tests:
+ for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
+ BASENAME_TEST=`basename $$TEST`; \
+ echo "$(COLLECTION):$$BASENAME_TEST"; \
+ done
+
+# define if isn't already. It is undefined in make O= case.
+ifeq ($(RM),)
+RM := rm -f
+endif
+
+define CLEAN
+ $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
+endef
+
+clean:
+ $(CLEAN)
+
+# Enables to extend CFLAGS and LDFLAGS from command line, e.g.
+# make USERCFLAGS=-Werror USERLDFLAGS=-static
+CFLAGS += $(USERCFLAGS)
+LDFLAGS += $(USERLDFLAGS)
+
+# When make O= with kselftest target from main level
+# the following aren't defined.
+#
+ifdef building_out_of_srctree
+LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
+COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
+LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
+endif
+
+# Selftest makefiles can override those targets by setting
+# OVERRIDE_TARGETS = 1.
+ifeq ($(OVERRIDE_TARGETS),)
+LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
+$(OUTPUT)/%:%.c $(LOCAL_HDRS)
+ $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
+
+$(OUTPUT)/%.o:%.S
+ $(COMPILE.S) $^ -o $@
+
+$(OUTPUT)/%:%.S
+ $(LINK.S) $^ $(LDLIBS) -o $@
+endif
+
+.PHONY: run_tests all clean install emit_tests