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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 18:39:59 +00:00
![Björn Töpel](/assets/img/avatar_default.png)
When kselftest is built/installed with the 'gen_tar' target, rsync is used for the installation step to copy files. Extra care is needed for tests that have symlinks. Commitae108c48b5
("selftests: net: Fix cross-tree inclusion of scripts") added '-L' (transform symlink into referent file/dir) to rsync, to fix dangling links. However, that broke some tests where the symlink (being a symlink) is part of the test (e.g. exec:execveat). Use rsync's '--copy-unsafe-links' that does right thing. Fixes:ae108c48b5
("selftests: net: Fix cross-tree inclusion of scripts") Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Reviewed-by: Benjamin Poirier <bpoirier@nvidia.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
190 lines
6.5 KiB
Makefile
190 lines
6.5 KiB
Makefile
# This mimics the top-level Makefile. We do it explicitly here so that this
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# Makefile can operate with or without the kbuild infrastructure.
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ifneq ($(LLVM),)
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ifneq ($(filter %/,$(LLVM)),)
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LLVM_PREFIX := $(LLVM)
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else ifneq ($(filter -%,$(LLVM)),)
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LLVM_SUFFIX := $(LLVM)
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endif
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CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi
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CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu
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CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl
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CLANG_TARGET_FLAGS_i386 := i386-linux-gnu
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CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu
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CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu
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CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu
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CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu
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CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu
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CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu
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CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu
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CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH))
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ifeq ($(CROSS_COMPILE),)
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ifeq ($(CLANG_TARGET_FLAGS),)
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$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
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else
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CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
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endif # CLANG_TARGET_FLAGS
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else
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CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
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endif # CROSS_COMPILE
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CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as
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else
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CC := $(CROSS_COMPILE)gcc
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endif # LLVM
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ifeq (0,$(MAKELEVEL))
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ifeq ($(OUTPUT),)
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OUTPUT := $(shell pwd)
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DEFAULT_INSTALL_HDR_PATH := 1
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endif
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endif
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selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
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top_srcdir = $(selfdir)/../../..
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ifeq ("$(origin O)", "command line")
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KBUILD_OUTPUT := $(O)
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endif
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ifneq ($(KBUILD_OUTPUT),)
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# Make's built-in functions such as $(abspath ...), $(realpath ...) cannot
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# expand a shell special character '~'. We use a somewhat tedious way here.
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abs_objtree := $(shell cd $(top_srcdir) && mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) && pwd)
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$(if $(abs_objtree),, \
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$(error failed to create output directory "$(KBUILD_OUTPUT)"))
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# $(realpath ...) resolves symlinks
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abs_objtree := $(realpath $(abs_objtree))
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KHDR_DIR := ${abs_objtree}/usr/include
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else
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abs_srctree := $(shell cd $(top_srcdir) && pwd)
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KHDR_DIR := ${abs_srctree}/usr/include
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endif
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KHDR_INCLUDES := -isystem $(KHDR_DIR)
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# The following are built by lib.mk common compile rules.
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# TEST_CUSTOM_PROGS should be used by tests that require
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# custom build rule and prevent common build rule use.
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# TEST_PROGS are for test shell scripts.
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# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
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# and install targets. Common clean doesn't touch them.
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TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
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TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
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TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
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all: kernel_header_files $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) \
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$(TEST_GEN_FILES)
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kernel_header_files:
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@ls $(KHDR_DIR)/linux/*.h >/dev/null 2>/dev/null; \
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if [ $$? -ne 0 ]; then \
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RED='\033[1;31m'; \
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NOCOLOR='\033[0m'; \
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echo; \
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echo -e "$${RED}error$${NOCOLOR}: missing kernel header files."; \
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echo "Please run this and try again:"; \
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echo; \
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echo " cd $(top_srcdir)"; \
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echo " make headers"; \
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echo; \
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exit 1; \
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fi
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.PHONY: kernel_header_files
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define RUN_TESTS
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BASE_DIR="$(selfdir)"; \
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. $(selfdir)/kselftest/runner.sh; \
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if [ "X$(summary)" != "X" ]; then \
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per_test_logging=1; \
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fi; \
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run_many $(1)
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endef
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run_tests: all
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ifdef building_out_of_srctree
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@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
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rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \
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fi
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@if [ "X$(TEST_PROGS)" != "X" ]; then \
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$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
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$(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
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else \
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$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
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fi
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else
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@$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
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endif
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define INSTALL_SINGLE_RULE
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$(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
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$(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/)
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endef
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define INSTALL_RULE
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$(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
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endef
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install: all
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ifdef INSTALL_PATH
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$(INSTALL_RULE)
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else
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$(error Error: set INSTALL_PATH to use install)
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endif
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emit_tests:
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for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
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BASENAME_TEST=`basename $$TEST`; \
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echo "$(COLLECTION):$$BASENAME_TEST"; \
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done
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# define if isn't already. It is undefined in make O= case.
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ifeq ($(RM),)
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RM := rm -f
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endif
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define CLEAN
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$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
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endef
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clean:
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$(CLEAN)
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# Enables to extend CFLAGS and LDFLAGS from command line, e.g.
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# make USERCFLAGS=-Werror USERLDFLAGS=-static
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CFLAGS += $(USERCFLAGS)
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LDFLAGS += $(USERLDFLAGS)
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# When make O= with kselftest target from main level
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# the following aren't defined.
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#
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ifdef building_out_of_srctree
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LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
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COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
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LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
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endif
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# Selftest makefiles can override those targets by setting
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# OVERRIDE_TARGETS = 1.
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ifeq ($(OVERRIDE_TARGETS),)
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LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
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$(OUTPUT)/%:%.c $(LOCAL_HDRS)
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$(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
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$(OUTPUT)/%.o:%.S
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$(COMPILE.S) $^ -o $@
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$(OUTPUT)/%:%.S
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$(LINK.S) $^ $(LDLIBS) -o $@
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endif
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.PHONY: run_tests all clean install emit_tests
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