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authorSantosh Sivaraj <santosh@fossix.org>2019-09-04 03:13:59 +0530
committerMichael Ellerman <mpe@ellerman.id.au>2019-09-12 09:27:00 +1000
commit6f62a8223e65c0571e48225d5d7e56de95225bae (patch)
tree289ff5946d3c92ef4baab0684d82afbc492e8e52
parentpowerpc/memcpy: Fix stack corruption for smaller sizes (diff)
downloadlinux-dev-6f62a8223e65c0571e48225d5d7e56de95225bae.tar.xz
linux-dev-6f62a8223e65c0571e48225d5d7e56de95225bae.zip
seltests/powerpc: Add a selftest for memcpy_mcsafe
Appropriate self tests for memcpy_mcsafe Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Santosh Sivaraj <santosh@fossix.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190903214359.23887-2-santosh@fossix.org
-rw-r--r--tools/testing/selftests/powerpc/copyloops/.gitignore1
-rw-r--r--tools/testing/selftests/powerpc/copyloops/Makefile7
-rw-r--r--tools/testing/selftests/powerpc/copyloops/asm/export.h1
l---------tools/testing/selftests/powerpc/copyloops/memcpy_mcsafe_64.S1
4 files changed, 9 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/copyloops/.gitignore b/tools/testing/selftests/powerpc/copyloops/.gitignore
index de158104912a..12ef5b031974 100644
--- a/tools/testing/selftests/powerpc/copyloops/.gitignore
+++ b/tools/testing/selftests/powerpc/copyloops/.gitignore
@@ -11,3 +11,4 @@ memcpy_p7_t1
copyuser_64_exc_t0
copyuser_64_exc_t1
copyuser_64_exc_t2
+memcpy_mcsafe_64
diff --git a/tools/testing/selftests/powerpc/copyloops/Makefile b/tools/testing/selftests/powerpc/copyloops/Makefile
index 44574f3818b3..0917983a1c78 100644
--- a/tools/testing/selftests/powerpc/copyloops/Makefile
+++ b/tools/testing/selftests/powerpc/copyloops/Makefile
@@ -12,7 +12,7 @@ ASFLAGS = $(CFLAGS) -Wa,-mpower4
TEST_GEN_PROGS := copyuser_64_t0 copyuser_64_t1 copyuser_64_t2 \
copyuser_p7_t0 copyuser_p7_t1 \
memcpy_64_t0 memcpy_64_t1 memcpy_64_t2 \
- memcpy_p7_t0 memcpy_p7_t1 \
+ memcpy_p7_t0 memcpy_p7_t1 memcpy_mcsafe_64 \
copyuser_64_exc_t0 copyuser_64_exc_t1 copyuser_64_exc_t2
EXTRA_SOURCES := validate.c ../harness.c stubs.S
@@ -45,6 +45,11 @@ $(OUTPUT)/memcpy_p7_t%: memcpy_power7.S $(EXTRA_SOURCES)
-D SELFTEST_CASE=$(subst memcpy_p7_t,,$(notdir $@)) \
-o $@ $^
+$(OUTPUT)/memcpy_mcsafe_64: memcpy_mcsafe_64.S $(EXTRA_SOURCES)
+ $(CC) $(CPPFLAGS) $(CFLAGS) \
+ -D COPY_LOOP=test_memcpy_mcsafe \
+ -o $@ $^
+
$(OUTPUT)/copyuser_64_exc_t%: copyuser_64.S exc_validate.c ../harness.c \
copy_tofrom_user_reference.S stubs.S
$(CC) $(CPPFLAGS) $(CFLAGS) \
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/export.h b/tools/testing/selftests/powerpc/copyloops/asm/export.h
index 05c1663c89b0..e6b80d5fbd14 100644
--- a/tools/testing/selftests/powerpc/copyloops/asm/export.h
+++ b/tools/testing/selftests/powerpc/copyloops/asm/export.h
@@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
#define EXPORT_SYMBOL(x)
+#define EXPORT_SYMBOL_GPL(x)
#define EXPORT_SYMBOL_KASAN(x)
diff --git a/tools/testing/selftests/powerpc/copyloops/memcpy_mcsafe_64.S b/tools/testing/selftests/powerpc/copyloops/memcpy_mcsafe_64.S
new file mode 120000
index 000000000000..f0feef3062f6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/memcpy_mcsafe_64.S
@@ -0,0 +1 @@
+../../../../../arch/powerpc/lib/memcpy_mcsafe_64.S \ No newline at end of file