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* [PATCH] selftests/vDSO: fix ABI selftest on riscv
@ 2021-02-04 14:50 Tobias Klauser
  2021-02-05  7:06 ` Palmer Dabbelt
  0 siblings, 1 reply; 7+ messages in thread
From: Tobias Klauser @ 2021-02-04 14:50 UTC (permalink / raw)
  To: Shuah Khan, Paul Walmsley, Palmer Dabbelt, Albert Ou
  Cc: Vincenzo Frascino, linux-kselftest, linux-kernel, linux-riscv

Only older versions of the RISC-V GCC toolchain define __riscv__. Check
for __riscv as well, which is used by newer GCC toolchains. Also set
VDSO_32BIT based on __riscv_xlen.

Before (on riscv64):

$ ./vdso_test_abi
[vDSO kselftest] VDSO_VERSION: LINUX_4
Could not find __vdso_gettimeofday
Could not find __vdso_clock_gettime
Could not find __vdso_clock_getres
clock_id: CLOCK_REALTIME [PASS]
Could not find __vdso_clock_gettime
Could not find __vdso_clock_getres
clock_id: CLOCK_BOOTTIME [PASS]
Could not find __vdso_clock_gettime
Could not find __vdso_clock_getres
clock_id: CLOCK_TAI [PASS]
Could not find __vdso_clock_gettime
Could not find __vdso_clock_getres
clock_id: CLOCK_REALTIME_COARSE [PASS]
Could not find __vdso_clock_gettime
Could not find __vdso_clock_getres
clock_id: CLOCK_MONOTONIC [PASS]
Could not find __vdso_clock_gettime
Could not find __vdso_clock_getres
clock_id: CLOCK_MONOTONIC_RAW [PASS]
Could not find __vdso_clock_gettime
Could not find __vdso_clock_getres
clock_id: CLOCK_MONOTONIC_COARSE [PASS]
Could not find __vdso_time

After (on riscv32):

$ ./vdso_test_abi
[vDSO kselftest] VDSO_VERSION: LINUX_4.15
The time is 1612449376.015086
The time is 1612449376.18340784
The resolution is 0 1
clock_id: CLOCK_REALTIME [PASS]
The time is 774.842586182
The resolution is 0 1
clock_id: CLOCK_BOOTTIME [PASS]
The time is 1612449376.22536565
The resolution is 0 1
clock_id: CLOCK_TAI [PASS]
The time is 1612449376.20885172
The resolution is 0 4000000
clock_id: CLOCK_REALTIME_COARSE [PASS]
The time is 774.845491269
The resolution is 0 1
clock_id: CLOCK_MONOTONIC [PASS]
The time is 774.849534200
The resolution is 0 1
clock_id: CLOCK_MONOTONIC_RAW [PASS]
The time is 774.842139684
The resolution is 0 4000000
clock_id: CLOCK_MONOTONIC_COARSE [PASS]
Could not find __vdso_time

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
---
 tools/testing/selftests/vDSO/vdso_config.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/vDSO/vdso_config.h b/tools/testing/selftests/vDSO/vdso_config.h
index 6a6fe8d4ff55..6188b16827d1 100644
--- a/tools/testing/selftests/vDSO/vdso_config.h
+++ b/tools/testing/selftests/vDSO/vdso_config.h
@@ -47,10 +47,12 @@
 #elif defined(__x86_64__)
 #define VDSO_VERSION		0
 #define VDSO_NAMES		1
-#elif defined(__riscv__)
+#elif defined(__riscv__) || defined(__riscv)
 #define VDSO_VERSION		5
 #define VDSO_NAMES		1
+#if __riscv_xlen == 32
 #define VDSO_32BIT		1
+#endif
 #else /* nds32 */
 #define VDSO_VERSION		4
 #define VDSO_NAMES		1
-- 
2.30.0


^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2021-02-10  8:07 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-02-04 14:50 [PATCH] selftests/vDSO: fix ABI selftest on riscv Tobias Klauser
2021-02-05  7:06 ` Palmer Dabbelt
2021-02-05  7:57   ` Tobias Klauser
2021-02-08 23:37     ` Shuah Khan
2021-02-09  1:55       ` Palmer Dabbelt
2021-02-10  8:06       ` Tobias Klauser
2021-02-05 11:12   ` Vincenzo Frascino

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