69 lines
2.4 KiB
Diff
69 lines
2.4 KiB
Diff
|
From 3df6f22e5fde470a6e0242e582e58919493bdd54 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Roland McGrath <roland@hack.frob.com>
|
||
|
|
Date: Tue, 15 Jul 2014 15:23:06 -0700
|
||
|
|
Subject: [PATCH 7/9] build extra lipthreadcond so
|
||
|
|
|
||
|
|
since 78fe624d44b8f6489b2d0de9bfdc09290a719a7, lowlevellock.c depends futex-internal.h which uses the private symbol __GI___libc_fatal of glibc.
|
||
|
|
We can't reference it in libpthread-2.17.so. Therefore, recompile in libphtread-2.17.so
|
||
|
|
|
||
|
|
---
|
||
|
|
nptl_2_17/lowlevellock_2_17.c | 46 ++++++++++++++++++++++
|
||
|
|
2 files changed, 46 insertions(+)
|
||
|
|
create mode 100644 nptl_2_17/lowlevellock_2_17.c
|
||
|
|
|
||
|
|
diff --git a/nptl_2_17/lowlevellock_2_17.c b/nptl_2_17/lowlevellock_2_17.c
|
||
|
|
new file mode 100644
|
||
|
|
index 00000000..bf1ca6b9
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/nptl_2_17/lowlevellock_2_17.c
|
||
|
|
@@ -0,0 +1,46 @@
|
||
|
|
+/* low level locking for pthread library. Generic futex-using version.
|
||
|
|
+ Copyright (C) 2003-2018 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
|
||
|
|
+ <http://www.gnu.org/licenses/>. */
|
||
|
|
+
|
||
|
|
+#include <errno.h>
|
||
|
|
+#include <sysdep.h>
|
||
|
|
+#include <lowlevellock.h>
|
||
|
|
+#include <sys/time.h>
|
||
|
|
+#include <atomic.h>
|
||
|
|
+
|
||
|
|
+void
|
||
|
|
+__lll_lock_wait_private (int *futex)
|
||
|
|
+{
|
||
|
|
+ if (*futex == 2)
|
||
|
|
+ lll_futex_wait (futex, 2, LLL_PRIVATE); /* Wait if *futex == 2. */
|
||
|
|
+
|
||
|
|
+ while (atomic_exchange_acq (futex, 2) != 0)
|
||
|
|
+ lll_futex_wait (futex, 2, LLL_PRIVATE); /* Wait if *futex == 2. */
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+
|
||
|
|
+/* This function doesn't get included in libc. */
|
||
|
|
+void
|
||
|
|
+__lll_lock_wait (int *futex, int private)
|
||
|
|
+{
|
||
|
|
+ if (*futex == 2)
|
||
|
|
+ lll_futex_wait (futex, 2, private); /* Wait if *futex == 2. */
|
||
|
|
+
|
||
|
|
+ while (atomic_exchange_acq (futex, 2) != 0)
|
||
|
|
+ lll_futex_wait (futex, 2, private); /* Wait if *futex == 2. */
|
||
|
|
+}
|
||
|
|
--
|
||
|
|
2.30.0
|
||
|
|
|