tools/testing/selftests/lib.mk

   1 # This mimics the top-level Makefile. We do it explicitly here so that this
   2 # Makefile can operate with or without the kbuild infrastructure.
   3 CC := $(CROSS_COMPILE)gcc
   4
   5 ifeq (0,$(MAKELEVEL))
   6     ifeq ($(OUTPUT),)
   7         OUTPUT := $(shell pwd)
   8         DEFAULT_INSTALL_HDR_PATH := 1
   9     endif
  10 endif
  11 selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
  12
  13 # The following are built by lib.mk common compile rules.
  14 # TEST_CUSTOM_PROGS should be used by tests that require
  15 # custom build rule and prevent common build rule use.
  16 # TEST_PROGS are for test shell scripts.
  17 # TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
  18 # and install targets. Common clean doesn't touch them.
  19 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
  20 TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
  21 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
  22
  23 ifdef KSFT_KHDR_INSTALL
  24 top_srcdir ?= ../../../..
  25 include $(top_srcdir)/scripts/subarch.include
  26 ARCH            ?= $(SUBARCH)
  27
  28 # set default goal to all, so make without a target runs all, even when
  29 # all isn't the first target in the file.
  30 .DEFAULT_GOAL := all
  31
  32 # Invoke headers install with --no-builtin-rules to avoid circular
  33 # dependency in "make kselftest" case. In this case, second level
  34 # make inherits builtin-rules which will use the rule generate
  35 # Makefile.o and runs into
  36 # "Circular Makefile.o <- prepare dependency dropped."
  37 # and headers_install fails and test compile fails.
  38 # O= KBUILD_OUTPUT cases don't run into this error, since main Makefile
  39 # invokes them as sub-makes and --no-builtin-rules is not necessary,
  40 # but doesn't cause any failures. Keep it simple and use the same
  41 # flags in both cases.
  42 # Note that the support to install headers from lib.mk is necessary
  43 # when test Makefile is run directly with "make -C".
  44 # When local build is done, headers are installed in the default
  45 # INSTALL_HDR_PATH usr/include.
  46 .PHONY: khdr
  47 khdr:
  48 ifndef KSFT_KHDR_INSTALL_DONE
  49 ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
  50         $(MAKE) --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
  51 else
  52         $(MAKE) --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \
  53                 ARCH=$(ARCH) -C $(top_srcdir) headers_install
  54 endif
  55 endif
  56
  57 all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
  58 else
  59 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
  60 endif
  61
  62 define RUN_TESTS
  63         BASE_DIR="$(selfdir)";                  \
  64         . $(selfdir)/kselftest/runner.sh;       \
  65         if [ "X$(summary)" != "X" ]; then       \
  66                 per_test_logging=1;             \
  67         fi;                                     \
  68         run_many $(1)
  69 endef
  70
  71 run_tests: all
  72 ifdef building_out_of_srctree
  73         @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
  74                 rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \
  75         fi
  76         @if [ "X$(TEST_PROGS)" != "X" ]; then \
  77                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(OUTPUT)/$(TEST_PROGS)) ; \
  78         else \
  79                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
  80         fi
  81 else
  82         @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
  83 endif
  84
  85 define INSTALL_SINGLE_RULE
  86         $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
  87         $(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/)
  88 endef
  89
  90 define INSTALL_RULE
  91         $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
  92         $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
  93         $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
  94         $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
  95         $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
  96         $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
  97         $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
  98 endef
  99
 100 install: all
 101 ifdef INSTALL_PATH
 102         $(INSTALL_RULE)
 103 else
 104         $(error Error: set INSTALL_PATH to use install)
 105 endif
 106
 107 emit_tests:
 108         for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
 109                 BASENAME_TEST=`basename $$TEST`;        \
 110                 echo "$(COLLECTION):$$BASENAME_TEST";   \
 111         done
 112
 113 # define if isn't already. It is undefined in make O= case.
 114 ifeq ($(RM),)
 115 RM := rm -f
 116 endif
 117
 118 define CLEAN
 119         $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 120 endef
 121
 122 clean:
 123         $(CLEAN)
 124
 125 # When make O= with kselftest target from main level
 126 # the following aren't defined.
 127 #
 128 ifdef building_out_of_srctree
 129 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 130 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
 131 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 132 endif
 133
 134 # Selftest makefiles can override those targets by setting
 135 # OVERRIDE_TARGETS = 1.
 136 ifeq ($(OVERRIDE_TARGETS),)
 137 LOCAL_HDRS := $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
 138 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
 139         $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
 140
 141 $(OUTPUT)/%.o:%.S
 142         $(COMPILE.S) $^ -o $@
 143
 144 $(OUTPUT)/%:%.S
 145         $(LINK.S) $^ $(LDLIBS) -o $@
 146 endif
 147
 148 .PHONY: run_tests all clean install emit_tests