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Subject[PATCH 5/7] selftests/x86: fix cross build logic
Date
x86 tests should not be built when ARCH != x86. Reused the logic from
breakpoints to determine when it's appropriate to build.

Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
---
tools/testing/selftests/x86/Makefile | 35 +++++++++++++++++++++++------------
1 file changed, 23 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index f0a7918..7be67a0 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -7,31 +7,36 @@ BINARIES_64 := $(TARGETS_C_BOTHBITS:%=%_64)

CFLAGS := -O2 -g -std=gnu99 -pthread -Wall

-UNAME_P := $(shell uname -p)
-
-# Always build 32-bit tests
+# Taken from perf makefile
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
+ifeq ($(ARCH),i386)
+ARCH := x86
all: all_32
-
+endif
+ifeq ($(ARCH),x86_64)
+ARCH := x86
# If we're on a 64-bit host, build 64-bit tests as well
-ifeq ($(shell uname -p),x86_64)
-all: all_64
+all: all_32 all_64
endif

all_32: check_build32 $(BINARIES_32)

all_64: $(BINARIES_64)

-clean:
- $(RM) $(BINARIES_32) $(BINARIES_64)
-
-run_tests:
- ./run_x86_tests.sh
-
$(TARGETS_C_BOTHBITS:%=%_32): %_32: %.c
+ifeq ($(ARCH),x86)
$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
+else
+ echo "Not an x86 target, can't build x86 tests"
+endif

$(TARGETS_C_BOTHBITS:%=%_64): %_64: %.c
+ifeq ($(ARCH),x86)
$(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
+else
+ echo "Not an x86 target, can't build x86 tests"
+endif

check_build32:
@if ! $(CC) -m32 -o /dev/null trivial_32bit_program.c; then \
@@ -46,3 +51,9 @@ check_build32:
echo " yum install glibc-devel.*i686"; \
exit 1; \
fi
+
+run_tests:
+ ./run_x86_tests.sh
+
+clean:
+ $(RM) $(BINARIES_32) $(BINARIES_64)
--
2.1.0


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