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2679f63fe5
This adds a set of test cases to test the behaviour of copy_tofrom_user when exceptions are encountered accessing the source or destination. Currently, copy_tofrom_user does not always copy as many bytes as possible when an exception occurs on a store to the destination, and that is reflected in failures in these tests. Based on a test program from Anton Blanchard. [paulus@ozlabs.org - test all three paths, wrote commit description, made EX_TABLE create an exception table.] Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
53 lines
1.7 KiB
Makefile
53 lines
1.7 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# The loops are all 64-bit code
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CFLAGS += -m64
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CFLAGS += -I$(CURDIR)
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CFLAGS += -D SELFTEST
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CFLAGS += -maltivec
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CFLAGS += -mcpu=power4
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# Use our CFLAGS for the implicit .S rule & set the asm machine type
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ASFLAGS = $(CFLAGS) -Wa,-mpower4
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TEST_GEN_PROGS := copyuser_64_t0 copyuser_64_t1 copyuser_64_t2 \
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copyuser_p7_t0 copyuser_p7_t1 \
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memcpy_64_t0 memcpy_64_t1 memcpy_64_t2 \
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memcpy_p7_t0 memcpy_p7_t1 \
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copyuser_64_exc_t0 copyuser_64_exc_t1 copyuser_64_exc_t2
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EXTRA_SOURCES := validate.c ../harness.c stubs.S
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include ../../lib.mk
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$(OUTPUT)/copyuser_64_t%: copyuser_64.S $(EXTRA_SOURCES)
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$(CC) $(CPPFLAGS) $(CFLAGS) \
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-D COPY_LOOP=test___copy_tofrom_user_base \
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-D SELFTEST_CASE=$(subst copyuser_64_t,,$(notdir $@)) \
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-o $@ $^
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$(OUTPUT)/copyuser_p7_t%: copyuser_power7.S $(EXTRA_SOURCES)
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$(CC) $(CPPFLAGS) $(CFLAGS) \
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-D COPY_LOOP=test___copy_tofrom_user_power7 \
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-D SELFTEST_CASE=$(subst copyuser_p7_t,,$(notdir $@)) \
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-o $@ $^
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# Strictly speaking, we only need the memcpy_64 test cases for big-endian
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$(OUTPUT)/memcpy_64_t%: memcpy_64.S $(EXTRA_SOURCES)
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$(CC) $(CPPFLAGS) $(CFLAGS) \
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-D COPY_LOOP=test_memcpy \
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-D SELFTEST_CASE=$(subst memcpy_64_t,,$(notdir $@)) \
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-o $@ $^
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$(OUTPUT)/memcpy_p7_t%: memcpy_power7.S $(EXTRA_SOURCES)
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$(CC) $(CPPFLAGS) $(CFLAGS) \
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-D COPY_LOOP=test_memcpy_power7 \
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-D SELFTEST_CASE=$(subst memcpy_p7_t,,$(notdir $@)) \
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-o $@ $^
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$(OUTPUT)/copyuser_64_exc_t%: copyuser_64.S exc_validate.c ../harness.c \
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copy_tofrom_user_reference.S stubs.S
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$(CC) $(CPPFLAGS) $(CFLAGS) \
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-D COPY_LOOP=test___copy_tofrom_user_base \
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-D SELFTEST_CASE=$(subst copyuser_64_exc_t,,$(notdir $@)) \
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-o $@ $^
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