diff mbox series

nptl: Fix tst-cancel30 on kernels without ppoll_time64 support

Message ID 87bk658x9j.fsf@oldenburg.str.redhat.com (mailing list archive)
State Committed
Headers
Series nptl: Fix tst-cancel30 on kernels without ppoll_time64 support |

Checks

Context Check Description
redhat-pt-bot/TryBot-apply_patch success Patch applied to master at the time it was sent
redhat-pt-bot/TryBot-32bit success Build for i686
linaro-tcwg-bot/tcwg_glibc_build--master-aarch64 success Testing passed
linaro-tcwg-bot/tcwg_glibc_check--master-aarch64 success Testing passed
linaro-tcwg-bot/tcwg_glibc_build--master-arm success Testing passed
linaro-tcwg-bot/tcwg_glibc_check--master-arm success Testing passed

Commit Message

Florian Weimer April 19, 2024, 10:25 a.m. UTC 
  Fall back to ppoll if ppoll_time64 fails with ENOSYS.
Fixes commit 370da8a121c3ba9eeb2f13da15fc0f21f4136b25 ("nptl: Fix
tst-cancel30 on sparc64").

---
 sysdeps/pthread/tst-cancel30.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)


base-commit: 0997c3d0c87433ac8c78043aaa9b6b7e91df2882
diff mbox series

Patch

diff --git a/sysdeps/pthread/tst-cancel30.c b/sysdeps/pthread/tst-cancel30.c
index 3030660e5f..09071a80ab 100644
--- a/sysdeps/pthread/tst-cancel30.c
+++ b/sysdeps/pthread/tst-cancel30.c
@@ -18,6 +18,7 @@ 
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
+#include <errno.h>
 #include <support/check.h>
 #include <support/xstdio.h>
 #include <support/xthread.h>
@@ -46,13 +47,18 @@  tf (void *arg)
 
   /* Wait indefinitely for cancellation, which only works if asynchronous
      cancellation is enabled.  */
-#if defined SYS_ppoll || defined SYS_ppoll_time64
-# ifndef SYS_ppoll_time64
-#  define SYS_ppoll_time64 SYS_ppoll
+#ifdef SYS_ppoll_time64
+  long int ret = syscall (SYS_ppoll_time64, NULL, 0, NULL, NULL);
+# ifdef SYS_ppoll
+  if (ret == -1 && errno == ENOSYS)
+    syscall (SYS_ppoll, NULL, 0, NULL, NULL);
 # endif
-  syscall (SYS_ppoll_time64, NULL, 0, NULL, NULL);
 #else
+# ifdef SYS_ppoll
+  syscall (SYS_ppoll, NULL, 0, NULL, NULL);
+# else
   for (;;);
+# endif
 #endif
 
   return 0;