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authorShuah Khan <shuahkh@osg.samsung.com>2015-03-18 11:57:39 -0600
committerShuah Khan <shuahkh@osg.samsung.com>2015-03-19 09:54:55 -0600
commit67d8712dcc70aa16d8e14a52eb73870e3cbddfc2 (patch)
tree777a01d85382b31943ab9ed9d1688fe4bbac06ba
parent9a0b57451ae8142c74d65bddb6d7765818babbed (diff)
downloadlinux-67d8712dcc70aa16d8e14a52eb73870e3cbddfc2.tar.gz
selftests: Fix build failures when invoked from kselftest target
Several tests that rely on implicit build rules fail to build, when invoked from the main Makefile kselftest target. These failures are due to --no-builtin-rules and --no-builtin-variables options set in the inherited MAKEFLAGS. --no-builtin-rules eliminates the use of built-in implicit rules and --no-builtin-variables is for not defining built-in variables. These two options override the use of implicit rules resulting in build failures. In addition, inherited LDFLAGS result in build failures and there is no need to define LDFLAGS. Clear LDFLAGS and MAKEFLAG when make is invoked from the main Makefile kselftest target. Fixing this at selftests Makefile avoids changing the main Makefile and keeps this change self contained at selftests level. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au>
-rw-r--r--tools/testing/selftests/Makefile8
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 4e511221a0c..0db571340ed 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -22,6 +22,14 @@ TARGETS += vm
TARGETS_HOTPLUG = cpu-hotplug
TARGETS_HOTPLUG += memory-hotplug
+# Clear LDFLAGS and MAKEFLAGS if called from main
+# Makefile to avoid test build failures when test
+# Makefile doesn't have explicit build rules.
+ifeq (1,$(MAKELEVEL))
+undefine LDFLAGS
+override MAKEFLAGS =
+endif
+
all:
for TARGET in $(TARGETS); do \
make -C $$TARGET; \