Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
selftests: vDSO: skip getrandom test if architecture is unsupported
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>
+6
-1
+6
-1
tools/testing/selftests/vDSO/vdso_test_getrandom.c
+6
-1
tools/testing/selftests/vDSO/vdso_test_getrandom.c
···
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const char *version = versions[VDSO_VERSION];
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const char *name = names[VDSO_NAMES][6];
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unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR);
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+
size_t ret;
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if (!sysinfo_ehdr) {
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printf("AT_SYSINFO_EHDR is not present!\n");
···
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printf("%s is missing!\n", name);
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exit(KSFT_FAIL);
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}
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-
if (vgrnd.fn(NULL, 0, 0, &vgrnd.params, ~0UL) != 0) {
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+
ret = vgrnd.fn(NULL, 0, 0, &vgrnd.params, ~0UL);
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+
if (ret == -ENOSYS) {
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+
printf("unsupported architecture\n");
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+
exit(KSFT_SKIP);
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+
} else if (ret) {
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printf("failed to fetch vgetrandom params!\n");
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exit(KSFT_FAIL);
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}