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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 370da8a121
("nptl: Fix
tst-cancel30 on sparc64").
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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parent
16c8dfba14
commit
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@ -18,6 +18,7 @@
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <support/check.h>
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#include <support/xstdio.h>
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#include <support/xthread.h>
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@ -46,13 +47,19 @@ tf (void *arg)
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/* Wait indefinitely for cancellation, which only works if asynchronous
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cancellation is enabled. */
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#if defined SYS_ppoll || defined SYS_ppoll_time64
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# ifndef SYS_ppoll_time64
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# define SYS_ppoll_time64 SYS_ppoll
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#ifdef SYS_ppoll_time64
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long int ret = syscall (SYS_ppoll_time64, NULL, 0, NULL, NULL);
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(void) ret;
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# ifdef SYS_ppoll
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if (ret == -1 && errno == ENOSYS)
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syscall (SYS_ppoll, NULL, 0, NULL, NULL);
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# endif
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syscall (SYS_ppoll_time64, NULL, 0, NULL, NULL);
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#else
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# ifdef SYS_ppoll
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syscall (SYS_ppoll, NULL, 0, NULL, NULL);
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# else
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for (;;);
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# endif
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#endif
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return 0;
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