linux-kernel - [PATCH] selftests/vDSO: Add riscv getcpu & gettimeofday test

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Date:   Wed,  2 Nov 2022 04:15:31 -0400
From:   guoren@...nel.org
To:     arnd@...db.de, guoren@...nel.org, shuah@...nel.org
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org, linux-kselftest@...r.kernel.org,
        "haocheng . zy" <haocheng.zy@...ux.alibaba.com>,
        Mao Han <han_mao@...ux.alibaba.com>,
        Guo Ren <guoren@...ux.alibaba.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Elliott Hughes <enh@...gle.com>
Subject: [PATCH] selftests/vDSO: Add riscv getcpu & gettimeofday test

From: Guo Ren <guoren@...nel.org>

Enable vDSO getcpu & gettimeofday test for riscv. But only riscv64
supports __vdso_gettimeofday and riscv32 is under development.

VERSION
{
        LINUX_4.15 {
        global:
                __vdso_rt_sigreturn;
                __vdso_gettimeofday;
                __vdso_clock_gettime;
                __vdso_clock_getres;
                __vdso_getcpu;
                __vdso_flush_icache;
        local: *;
        };
}

Co-developed-by: haocheng.zy <haocheng.zy@...ux.alibaba.com>
Signed-off-by: haocheng.zy <haocheng.zy@...ux.alibaba.com>
Suggested-by: Mao Han <han_mao@...ux.alibaba.com>
Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
Signed-off-by: Guo Ren <guoren@...nel.org>
Cc: Paul Walmsley <paul.walmsley@...ive.com>
Cc: Palmer Dabbelt <palmer@...belt.com>
Cc: Elliott Hughes <enh@...gle.com>
---
 tools/testing/selftests/vDSO/vdso_test_getcpu.c       | 5 +++++
 tools/testing/selftests/vDSO/vdso_test_gettimeofday.c | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/tools/testing/selftests/vDSO/vdso_test_getcpu.c b/tools/testing/selftests/vDSO/vdso_test_getcpu.c
index fc25ede131b8..1e474f406a87 100644
--- a/tools/testing/selftests/vDSO/vdso_test_getcpu.c
+++ b/tools/testing/selftests/vDSO/vdso_test_getcpu.c
@@ -14,8 +14,13 @@
 #include "../kselftest.h"
 #include "parse_vdso.h"
 
+#if defined(__riscv)
+const char *version = "LINUX_4.15";
+const char *name = "__vdso_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 *,
diff --git a/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c b/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c
index 8ccc73ed8240..e411f287a426 100644
--- a/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c
+++ b/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c
@@ -27,6 +27,9 @@
 #if defined(__aarch64__)
 const char *version = "LINUX_2.6.39";
 const char *name = "__kernel_gettimeofday";
+#elif defined(__riscv)
+const char *version = "LINUX_4.15";
+const char *name = "__vdso_gettimeofday";
 #else
 const char *version = "LINUX_2.6";
 const char *name = "__vdso_gettimeofday";
-- 
2.36.1