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-rw-r--r--linux/linux-tool-selftests.mk46
1 files changed, 46 insertions, 0 deletions
diff --git a/linux/linux-tool-selftests.mk b/linux/linux-tool-selftests.mk
new file mode 100644
index 0000000000..3cbfed2d81
--- /dev/null
+++ b/linux/linux-tool-selftests.mk
@@ -0,0 +1,46 @@
+################################################################################
+#
+# selftests
+#
+################################################################################
+
+LINUX_TOOLS += selftests
+
+ifeq ($(KERNEL_ARCH),x86_64)
+SELFTESTS_ARCH=x86
+else
+ifeq ($(KERNEL_ARCH),i386)
+SELFTESTS_ARCH=x86
+else
+SELFTESTS_ARCH=$(KERNEL_ARCH)
+endif
+endif
+
+SELFTESTS_DEPENDENCIES = libcap-ng popt
+
+SELFTESTS_MAKE_FLAGS = \
+ $(LINUX_MAKE_FLAGS) \
+ ARCH=$(SELFTESTS_ARCH)
+
+# O must be redefined here to overwrite the one used by Buildroot for
+# out of tree build. We build the selftests in $(@D)/tools/selftests and
+# not just $(@D) so that it isn't built in the root directory of the kernel
+# sources.
+#
+# The headers_install step here is important as some kernel selftests use a
+# hardcoded CFLAGS to find kernel headers e.g:
+# CFLAGS += -I../../../../usr/include/
+# The headers_install target will install the kernel headers locally inside
+# the Linux build dir
+define SELFTESTS_BUILD_CMDS
+ $(TARGET_MAKE_ENV) $(MAKE1) -C $(@D) $(SELFTESTS_MAKE_FLAGS) \
+ headers_install
+ $(TARGET_MAKE_ENV) $(MAKE1) -C $(@D)/tools/testing/selftests \
+ $(SELFTESTS_MAKE_FLAGS) O=$(@D)/tools/testing/selftests
+endef
+
+define SELFTESTS_INSTALL_TARGET_CMDS
+ $(TARGET_MAKE_ENV) $(MAKE1) -C $(@D)/tools/testing/selftests \
+ $(SELFTESTS_MAKE_FLAGS) O=$(@D)/tools/testing/selftests \
+ INSTALL_PATH=$(TARGET_DIR)/usr/lib/kselftests install
+endef
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