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Subject[PATCH v2 5/8] selftest/x86: build both bitnesses
Using uname with the processor flag option in some cases can yield 'unknown'
so lets use the machine flag option as it is deterministic. Add a dependency
for all_32 when building on a x86 64 bit host so that both bitnesses are
built in this case.

Cc: Andy Lutomirski <>
Signed-off-by: Tyler Baker <>
tools/testing/selftests/x86/Makefile | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index f0a7918..57090ad 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -7,14 +7,14 @@ BINARIES_64 := $(TARGETS_C_BOTHBITS:%=%_64)

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

-UNAME_P := $(shell uname -p)
+UNAME_M := $(shell uname -m)

# Always build 32-bit tests
all: all_32

# If we're on a 64-bit host, build 64-bit tests as well
-ifeq ($(shell uname -p),x86_64)
-all: all_64
+ifeq ($(UNAME_M),x86_64)
+all: all_32 all_64

all_32: check_build32 $(BINARIES_32)

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