[PATCH] libstdc++: async: tolerate slightly shorter sleep

[Alexandre Oliva]

On Jun 22, 2022, Alexandre Oliva <oliva@adacore.com> wrote:

> Regstrapped on x86_64-linux-gnu, also tested with a cross to
> aarch64-rtems6.  Ok to install?

The early wakeups are fixed for rtems6.1, so the same question raised at
https://gcc.gnu.org/pipermail/gcc-patches/2022-June/597102.html apply to
this one:

libstdc++: xfail nanosleep tests on rtems

From: Alexandre Oliva <oliva@adacore.com>

Since it has been determined that nanosleep may return slightly too
early on RTEMS, due to clock resolution differences, expect
30_thread/async tests that have detected too-early wakeups to fail on
RTEMS targets.


for  libstdc++-v3/ChangeLog

	* testsuite/30_threads/async/async.cc: xfail on RTEMS.

TN: V608-048
---
 libstdc++-v3/testsuite/30_threads/async/async.cc |    1 +
 1 file changed, 1 insertion(+)

diff --git a/libstdc++-v3/testsuite/30_threads/async/async.cc b/libstdc++-v3/testsuite/30_threads/async/async.cc
index 38943ff1a9a5e..e0b731186c459 100644
--- a/libstdc++-v3/testsuite/30_threads/async/async.cc
+++ b/libstdc++-v3/testsuite/30_threads/async/async.cc
@@ -2,6 +2,7 @@
 // { dg-additional-options "-pthread" { target pthread } }
 // { dg-require-effective-target c++11 }
 // { dg-require-gthreads "" }
+// { dg-xfail-if "nanosleep may wake up too early" { *-*-rtems* } }
 
 // Copyright (C) 2010-2022 Free Software Foundation, Inc.
 //


-- 
Alexandre Oliva, happy hacker                https://FSFLA.org/blogs/lxo/
   Free Software Activist                       GNU Toolchain Engineer
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