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Message-ID: <20231213012300.5640-2-yangtiezhu@loongson.cn>
Date:   Wed, 13 Dec 2023 09:22:59 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Shuah Khan <shuah@...nel.org>,
        Shuah Khan <skhan@...uxfoundation.org>
Cc:     linux-kselftest@...r.kernel.org, loongarch@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/2] selftests/vDSO: Fix building errors on LoongArch

There exist the following errors when build vDSO selftests on LoongArch:

  # make headers && cd tools/testing/selftests/vDSO && make
  ...
  error: 'VDSO_VERSION' undeclared (first use in this function)
  ...
  error: 'VDSO_NAMES' undeclared (first use in this function)

We can see the following code in arch/loongarch/vdso/vdso.lds.S:

VERSION
{
        LINUX_5.10 {
        global:
                __vdso_getcpu;
                __vdso_clock_getres;
                __vdso_clock_gettime;
                __vdso_gettimeofday;
                __vdso_rt_sigreturn;
        local: *;
        };
}

so VDSO_VERSION should be 6 and VDSO_NAMES should be 1 for LoongArch,
add them to fix the building errors on LoongArch.

Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
 tools/testing/selftests/vDSO/vdso_config.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/vDSO/vdso_config.h b/tools/testing/selftests/vDSO/vdso_config.h
index cdfed403ba13..7b543e7f04d7 100644
--- a/tools/testing/selftests/vDSO/vdso_config.h
+++ b/tools/testing/selftests/vDSO/vdso_config.h
@@ -53,15 +53,19 @@
 #if __riscv_xlen == 32
 #define VDSO_32BIT		1
 #endif
+#elif defined(__loongarch__)
+#define VDSO_VERSION		6
+#define VDSO_NAMES		1
 #endif
 
-static const char *versions[6] = {
+static const char *versions[7] = {
 	"LINUX_2.6",
 	"LINUX_2.6.15",
 	"LINUX_2.6.29",
 	"LINUX_2.6.39",
 	"LINUX_4",
 	"LINUX_4.15",
+	"LINUX_5.10"
 };
 
 static const char *names[2][6] = {
-- 
2.42.0

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