It could not find __vdso_getcpu and __vdso_gettimeofday when test getcpu and gettimeofday on LoongArch.

# make headers && cd tools/testing/selftests/vDSO && make # ./vdso_test_getcpu Could not find __vdso_getcpu # ./vdso_test_gettimeofday Could not find __vdso_gettimeofday

One simple way is to add LoongArch case to define version and name, just like commit d942f231afc0 ("selftests/vDSO: Add riscv getcpu & gettimeofday test"), but it is not the best way.

Since each architecture has already defined names and versions in vdso_config.h, it is proper to include vdso_config.h to get version and name for all archs.

Signed-off-by: Tiezhu Yang yangtiezhu@loongson.cn --- tools/testing/selftests/vDSO/vdso_test_getcpu.c | 16 +++++-------- .../selftests/vDSO/vdso_test_gettimeofday.c | 26 ++++++---------------- 2 files changed, 13 insertions(+), 29 deletions(-)

diff --git a/tools/testing/selftests/vDSO/vdso_test_getcpu.c b/tools/testing/selftests/vDSO/vdso_test_getcpu.c index 1df5d05..b758f68 100644 --- a/tools/testing/selftests/vDSO/vdso_test_getcpu.c +++ b/tools/testing/selftests/vDSO/vdso_test_getcpu.c @@ -13,13 +13,7 @@

#include "../kselftest.h" #include "parse_vdso.h" - -#if defined(__riscv) -const char *version = "LINUX_4.15"; -#else -const char *version = "LINUX_2.6"; -#endif -const char *name = "__vdso_getcpu"; +#include "vdso_config.h"

struct getcpu_cache; typedef long (*getcpu_t)(unsigned int *, unsigned int *, @@ -27,6 +21,8 @@ typedef long (*getcpu_t)(unsigned int *, unsigned int *,

int main(int argc, char **argv) { + const char *version = versions[VDSO_VERSION]; + const char **name = (const char **)&names[VDSO_NAMES]; unsigned long sysinfo_ehdr; unsigned int cpu, node; getcpu_t get_cpu; @@ -40,9 +36,9 @@ int main(int argc, char **argv)

vdso_init_from_sysinfo_ehdr(getauxval(AT_SYSINFO_EHDR));

- get_cpu = (getcpu_t)vdso_sym(version, name); + get_cpu = (getcpu_t)vdso_sym(version, name[4]); if (!get_cpu) { - printf("Could not find %s\n", name); + printf("Could not find %s\n", name[4]); return KSFT_SKIP; }

@@ -50,7 +46,7 @@ int main(int argc, char **argv) if (ret == 0) { printf("Running on CPU %u node %u\n", cpu, node); } else { - printf("%s failed\n", name); + printf("%s failed\n", name[4]); return KSFT_FAIL; }

diff --git a/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c b/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c index e411f28..ee4f1ca 100644 --- a/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c +++ b/tools/testing/selftests/vDSO/vdso_test_gettimeofday.c @@ -18,25 +18,13 @@

#include "../kselftest.h" #include "parse_vdso.h" - -/* - * ARM64's vDSO exports its gettimeofday() 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_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"; -#endif +#include "vdso_config.h"

int main(int argc, char **argv) { + const char *version = versions[VDSO_VERSION]; + const char **name = (const char **)&names[VDSO_NAMES]; + unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR); if (!sysinfo_ehdr) { printf("AT_SYSINFO_EHDR is not present!\n"); @@ -47,10 +35,10 @@ int main(int argc, char **argv)

/* Find gettimeofday. */ typedef long (*gtod_t)(struct timeval *tv, struct timezone *tz); - gtod_t gtod = (gtod_t)vdso_sym(version, name); + gtod_t gtod = (gtod_t)vdso_sym(version, name[0]);

if (!gtod) { - printf("Could not find %s\n", name); + printf("Could not find %s\n", name[0]); return KSFT_SKIP; }

@@ -61,7 +49,7 @@ int main(int argc, char **argv) printf("The time is %lld.%06lld\n", (long long)tv.tv_sec, (long long)tv.tv_usec); } else { - printf("%s failed\n", name); + printf("%s failed\n", name[0]); return KSFT_FAIL; }