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selftests: vDSO: skip getrandom test if architecture is unsupported

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If the getrandom test compiles for an arch, don't exit fatally if the
actual cpu it's running on is unsupported.

Suggested-by: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2024-08-29 20:23:23 +02:00
parent b90eeff1ba
commit f78280b1a3
1 changed files with 6 additions and 1 deletions
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7
tools/testing/selftests/vDSO/vdso_test_getrandom.c
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@ -104,6 +104,7 @@ static void vgetrandom_init(void)
const char *version = versions[VDSO_VERSION];
const char *name = names[VDSO_NAMES][6];
unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR);
size_t ret;
if (!sysinfo_ehdr) {
printf("AT_SYSINFO_EHDR is not present!\n");
@ -115,7 +116,11 @@ static void vgetrandom_init(void)
printf("%s is missing!\n", name);
exit(KSFT_FAIL);
}
if (vgrnd.fn(NULL, 0, 0, &vgrnd.params, ~0UL) != 0) {
ret = vgrnd.fn(NULL, 0, 0, &vgrnd.params, ~0UL);
if (ret == -ENOSYS) {
printf("unsupported architecture\n");
exit(KSFT_SKIP);
} else if (ret) {
printf("failed to fetch vgetrandom params!\n");
exit(KSFT_FAIL);
}