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author | Greg Hackmann <ghackmann@google.com> | 2017-11-01 14:34:26 -0700 |
---|---|---|
committer | Shuah Khan <shuahkh@osg.samsung.com> | 2017-11-15 08:01:43 -0700 |
commit | 2650554da3f895a7bc276127dac4ec43b7b860c0 (patch) | |
tree | e43be284d7c1074920a7fca904131cfb0953fe7a /tools/testing | |
parent | 8d17a6fe5d3cd635b48818b8da58a0e3ca4c2553 (diff) | |
download | linux-stable-2650554da3f895a7bc276127dac4ec43b7b860c0.tar.gz linux-stable-2650554da3f895a7bc276127dac4ec43b7b860c0.tar.bz2 linux-stable-2650554da3f895a7bc276127dac4ec43b7b860c0.zip |
selftests: vdso_test: support ARM64 targets
ARM64's vDSO exports its gettimeofday() implementation with a different
name (__kernel_gettimeofday) and version (LINUX_2.6.39) from other
architectures. Add a corresponding special-case to vdso_test.
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Diffstat (limited to 'tools/testing')
-rw-r--r-- | tools/testing/selftests/vDSO/vdso_test.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/tools/testing/selftests/vDSO/vdso_test.c b/tools/testing/selftests/vDSO/vdso_test.c index 8daeb7d7032c..2df26bd0099c 100644 --- a/tools/testing/selftests/vDSO/vdso_test.c +++ b/tools/testing/selftests/vDSO/vdso_test.c @@ -19,6 +19,19 @@ extern void *vdso_sym(const char *version, const char *name); extern void vdso_init_from_sysinfo_ehdr(uintptr_t base); extern void vdso_init_from_auxv(void *auxv); +/* + * 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"; +#else +const char *version = "LINUX_2.6"; +const char *name = "__vdso_gettimeofday"; +#endif + int main(int argc, char **argv) { unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR); @@ -31,10 +44,10 @@ 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("LINUX_2.6", "__vdso_gettimeofday"); + gtod_t gtod = (gtod_t)vdso_sym(version, name); if (!gtod) { - printf("Could not find __vdso_gettimeofday\n"); + printf("Could not find %s\n", name); return 1; } @@ -45,7 +58,7 @@ 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("__vdso_gettimeofday failed\n"); + printf("%s failed\n", name); } return 0; |