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-rw-r--r--tools/testing/selftests/arm64/bti/Makefile61
1 files changed, 61 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/bti/Makefile b/tools/testing/selftests/arm64/bti/Makefile
new file mode 100644
index 000000000..ccdac414a
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/Makefile
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_GEN_PROGS := btitest nobtitest
+
+PROGS := $(patsubst %,gen/%,$(TEST_GEN_PROGS))
+
+# These tests are built as freestanding binaries since otherwise BTI
+# support in ld.so is required which is not currently widespread; when
+# it is available it will still be useful to test this separately as the
+# cases for statically linked and dynamically lined binaries are
+# slightly different.
+
+CFLAGS_NOBTI = -mbranch-protection=none -DBTI=0
+CFLAGS_BTI = -mbranch-protection=standard -DBTI=1
+
+CFLAGS_COMMON = -ffreestanding -Wall -Wextra $(CFLAGS)
+
+BTI_CC_COMMAND = $(CC) $(CFLAGS_BTI) $(CFLAGS_COMMON) -c -o $@ $<
+NOBTI_CC_COMMAND = $(CC) $(CFLAGS_NOBTI) $(CFLAGS_COMMON) -c -o $@ $<
+
+%-bti.o: %.c
+ $(BTI_CC_COMMAND)
+
+%-bti.o: %.S
+ $(BTI_CC_COMMAND)
+
+%-nobti.o: %.c
+ $(NOBTI_CC_COMMAND)
+
+%-nobti.o: %.S
+ $(NOBTI_CC_COMMAND)
+
+BTI_OBJS = \
+ test-bti.o \
+ signal-bti.o \
+ start-bti.o \
+ syscall-bti.o \
+ system-bti.o \
+ teststubs-bti.o \
+ trampoline-bti.o
+gen/btitest: $(BTI_OBJS)
+ $(CC) $(CFLAGS_BTI) $(CFLAGS_COMMON) -nostdlib -static -o $@ $^
+
+NOBTI_OBJS = \
+ test-nobti.o \
+ signal-nobti.o \
+ start-nobti.o \
+ syscall-nobti.o \
+ system-nobti.o \
+ teststubs-nobti.o \
+ trampoline-nobti.o
+gen/nobtitest: $(NOBTI_OBJS)
+ $(CC) $(CFLAGS_BTI) $(CFLAGS_COMMON) -nostdlib -static -o $@ $^
+
+# Including KSFT lib.mk here will also mangle the TEST_GEN_PROGS list
+# to account for any OUTPUT target-dirs optionally provided by
+# the toplevel makefile
+include ../../lib.mk
+
+$(TEST_GEN_PROGS): $(PROGS)
+ cp $(PROGS) $(OUTPUT)/