kbuild: kselftest - new make target to build and run kernel selftests

Add a new make target "kselftest" to enable kernel testing. This
new target builds and runs kernel selftests. Running as root is
recommended for a complete test run as some tests don't run when
run by non-root user. Build, install, and boot kernel before
running kselftest on it.

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>

1 files changed, 12 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 284071c59477..2ca7d189618d 100644
--- a/Makefile
+++ b/Makefile
@@ -1028,6 +1028,13 @@ headers_check: headers_install
         $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
 
 # ---------------------------------------------------------------------------
+# Kernel selftest
+
+PHONY += kselftest
+kselftest:
+        $(Q)$(MAKE) -C tools/testing/selftests run_tests
+
+# ---------------------------------------------------------------------------
 # Modules
 
 ifdef CONFIG_MODULES
@@ -1230,6 +1237,11 @@ help:
         @echo  '  headerdep       - Detect inclusion cycles in headers'
         @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
         @echo  ''
+        @echo  'Kernel selftest'
+        @echo  '  kselftest       - Build and run kernel selftest (run as root)'
+        @echo  '                    Build, install, and boot kernel before'
+        @echo  '                    running kselftest on it'
+        @echo  ''
         @echo  'Kernel packaging:'
         @$(MAKE) $(build)=$(package-dir) help
         @echo  ''