Index: runtime/bin/fdutils_fuchsia.cc |
diff --git a/runtime/bin/fdutils_fuchsia.cc b/runtime/bin/fdutils_fuchsia.cc |
index 4aa4b29f573a8289e2b6599579650a25774b6fa8..00c9763fc8e2e2703bf8071b443f6d22b1faaa11 100644 |
--- a/runtime/bin/fdutils_fuchsia.cc |
+++ b/runtime/bin/fdutils_fuchsia.cc |
@@ -74,6 +74,7 @@ intptr_t FDUtils::AvailableBytes(intptr_t fd) { |
int available; // ioctl for FIONREAD expects an 'int*' argument. |
int result = NO_RETRY_EXPECTED(ioctl(fd, FIONREAD, &available)); |
if (result < 0) { |
+ perror("ioctl(fd, FIONREAD, &available) failed"); |
return result; |
} |
ASSERT(available >= 0); |