[PATCH v3 5/5] selftests: vdso: Support arm64 in getcpu() test
From: Mark Brown <broonie@kernel.org>
Date: 2020-08-19 12:15:39
Also in:
linux-kselftest
Subsystem:
generic vdso library, kernel selftest framework, the rest · Maintainers:
Andy Lutomirski, Thomas Gleixner, Vincenzo Frascino, Shuah Khan, Linus Torvalds
arm64 exports the vDSO ABI with a version of LINUX_2.6.39 and symbols prefixed with __kernel rather than __vdso. Update the getcpu() test to handle this. Signed-off-by: Mark Brown <broonie@kernel.org> --- tools/testing/selftests/vDSO/vdso_test_getcpu.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/tools/testing/selftests/vDSO/vdso_test_getcpu.c b/tools/testing/selftests/vDSO/vdso_test_getcpu.c
index fc25ede131b8..4aeb65012b81 100644
--- a/tools/testing/selftests/vDSO/vdso_test_getcpu.c
+++ b/tools/testing/selftests/vDSO/vdso_test_getcpu.c@@ -14,8 +14,18 @@ #include "../kselftest.h" #include "parse_vdso.h" +/* + * ARM64's vDSO exports its getcpu() implementation with a different + * name and version from other architectures, so we need to handle it + * as a special case. + */ +#if defined(__aarch64__) +const char *version = "LINUX_2.6.39"; +const char *name = "__kernel_getcpu"; +#else const char *version = "LINUX_2.6"; const char *name = "__vdso_getcpu"; +#endif struct getcpu_cache; typedef long (*getcpu_t)(unsigned int *, unsigned int *,
--
2.20.1
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