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authorFlorian Weimer <fweimer@redhat.com>2024-04-23 21:16:32 +0200
committerFlorian Weimer <fweimer@redhat.com>2024-04-25 12:57:32 +0200
commite828914cf9f2fc2caa5bced0fc6a03cb78324979 (patch)
tree6a86bfdf435403ae6118ea6b206a384887dc7040 /sysdeps/pthread
parent31da30f23cddd36db29d5b6a1c7619361b271fb4 (diff)
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nptl: Fix tst-cancel30 on kernels without ppoll_time64 support
Fall back to ppoll if ppoll_time64 fails with ENOSYS.
Fixes commit 370da8a121c3ba9eeb2f13da15fc0f21f4136b25 ("nptl: Fix
tst-cancel30 on sparc64").

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit f4724843ada64a51d66f65d3199fe431f9d4c254)
Diffstat (limited to 'sysdeps/pthread')
-rw-r--r--sysdeps/pthread/tst-cancel30.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/sysdeps/pthread/tst-cancel30.c b/sysdeps/pthread/tst-cancel30.c
index 3030660e5f..94ad6281bc 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 +47,19 @@ 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);
+  (void) ret;
+# 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;