* [PATCH] selftests/intel_pstate: Fix build rule for x86
@ 2018-02-21 18:07 Daniel Díaz
0 siblings, 0 replies; only message in thread
From: Daniel Díaz @ 2018-02-21 18:07 UTC (permalink / raw)
To: shuahkh, linux-kselftest
Cc: Daniel Díaz, Shuah Khan, Philippe Ombredanne, SeongJae Park,
Thomas Gleixner, Greg Kroah-Hartman, open list
Ensure that ARCH is defined and that this only builds for
x86 architectures.
It is possible to build from the root of the Linux tree, which
will define ARCH, or to run make from the selftests/ directory
itself, which has no provision for defining ARCH, so this
change is to use the current definition (if any), or to check
uname -m if undefined.
Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org>
---
tools/testing/selftests/intel_pstate/Makefile | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/intel_pstate/Makefile b/tools/testing/selftests/intel_pstate/Makefile
index 5a3f7d37..7340fd6 100644
--- a/tools/testing/selftests/intel_pstate/Makefile
+++ b/tools/testing/selftests/intel_pstate/Makefile
@@ -2,7 +2,10 @@
CFLAGS := $(CFLAGS) -Wall -D_GNU_SOURCE
LDLIBS := $(LDLIBS) -lm
-ifeq (,$(filter $(ARCH),x86))
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
+
+ifeq (x86,$(ARCH))
TEST_GEN_FILES := msr aperf
endif
--
2.7.4
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