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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-11-22 18:55:03 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-11-25 10:43:18 -0300
commit5289cec4b8812ffe7998df81b74be8ef6e563b5f (patch)
tree5823cafb2ef2d0b005b93953e10504fbebb8515c /nptl
parenta3e7aead03d558e77fc8b9dc4d567b7bb8619545 (diff)
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nptl: Replace lll_timedwait with __futex_abstimed_wait64
Checked with x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'nptl')
-rw-r--r--nptl/Makefile1
-rw-r--r--nptl/lll_timedlock_wait.c62
-rw-r--r--nptl/pthread_mutex_lock.c4
3 files changed, 2 insertions, 65 deletions
diff --git a/nptl/Makefile b/nptl/Makefile
index 74ab758c12..968768d33b 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -147,7 +147,6 @@ libpthread-routines = nptl-init nptlfreeres vars events version pt-interp \
 		      pt-longjmp pt-cleanup\
 		      cancellation \
 		      lowlevellock \
-		      lll_timedlock_wait \
 		      pt-fork pt-fcntl \
 		      $(pthread-compat-wrappers) \
 		      pt-raise pt-system \
diff --git a/nptl/lll_timedlock_wait.c b/nptl/lll_timedlock_wait.c
deleted file mode 100644
index eabdca70c8..0000000000
--- a/nptl/lll_timedlock_wait.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/* Timed low level locking for pthread library.  Generic futex-using version.
-   Copyright (C) 2003-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <atomic.h>
-#include <errno.h>
-#include <lowlevellock.h>
-#include <sys/time.h>
-#include <time.h>
-
-
-int
-__lll_clocklock_wait (int *futex, int val, clockid_t clockid,
-		      const struct timespec *abstime, int private)
-{
-  struct timespec ts, *tsp = NULL;
-
-  if (abstime != NULL)
-    {
-      /* Reject invalid timeouts.  */
-      if (! valid_nanoseconds (abstime->tv_nsec))
-        return EINVAL;
-
-      /* Get the current time. This can only fail if clockid is not valid.  */
-      if (__glibc_unlikely (__clock_gettime (clockid, &ts) != 0))
-        return EINVAL;
-
-      /* Compute relative timeout.  */
-      ts.tv_sec = abstime->tv_sec - ts.tv_sec;
-      ts.tv_nsec = abstime->tv_nsec - ts.tv_nsec;
-      if (ts.tv_nsec < 0)
-        {
-	  ts.tv_nsec += 1000000000;
-	  --ts.tv_sec;
-        }
-
-      if (ts.tv_sec < 0)
-        return ETIMEDOUT;
-
-      tsp = &ts;
-    }
-
-  /* If *futex == val, wait until woken or timeout.  */
-  lll_futex_timed_wait (futex, val, tsp, private);
-
-  return 0;
-}
diff --git a/nptl/pthread_mutex_lock.c b/nptl/pthread_mutex_lock.c
index 0439002454..1f137f6201 100644
--- a/nptl/pthread_mutex_lock.c
+++ b/nptl/pthread_mutex_lock.c
@@ -425,8 +425,8 @@ __pthread_mutex_lock_full (pthread_mutex_t *mutex)
 
 		/* Delay the thread indefinitely.  */
 		while (1)
-		  lll_timedwait (&(int){0}, 0, 0 /* ignored */, NULL,
-				 private);
+		  __futex_abstimed_wait64 (&(unsigned int){0}, 0,
+					   0 /* ignored */, NULL, private);
 	      }
 
 	    oldval = mutex->__data.__lock;