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# 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 = -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 -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 -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)/
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