From 04454efba24f352eee6dca7442166dade5000392 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sun, 8 Jan 2006 01:51:18 +0000 Subject: (AIO_MISC_WAIT): Work around gcc being to clever and reloading the futex value where it shouldn't. --- nptl/sysdeps/pthread/aio_misc.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'nptl/sysdeps/pthread') diff --git a/nptl/sysdeps/pthread/aio_misc.h b/nptl/sysdeps/pthread/aio_misc.h index 5aeb34eb98..f285083883 100644 --- a/nptl/sysdeps/pthread/aio_misc.h +++ b/nptl/sysdeps/pthread/aio_misc.h @@ -35,6 +35,7 @@ #define AIO_MISC_WAIT(result, futex, timeout, cancel) \ do { \ + volatile int *futexaddr = &futex; \ int oldval = futex; \ \ if (oldval != 0) \ @@ -48,11 +49,11 @@ int status; \ do \ { \ - status = lll_futex_timed_wait (&futex, oldval, timeout); \ + status = lll_futex_timed_wait (futexaddr, oldval, timeout); \ if (status != -EWOULDBLOCK) \ break; \ \ - oldval = futex; \ + oldval = *futexaddr; \ } \ while (oldval != 0); \ \ -- cgit 1.4.1