+++ /dev/null
-From efb0fca7db742f4195e1771d8ba4c7fba4938819 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Sat, 27 Jan 2018 10:05:07 -0800
-Subject: [PATCH] reset dl_load_write_lock after forking
-
-The patch in this Bugzilla entry was requested by a customer:
-
- https://www.sourceware.org/bugzilla/show_bug.cgi?id=19282
-
-The __libc_fork() code reset dl_load_lock, but it also needed to reset
-dl_load_write_lock. The patch has not yet been integrated upstream.
-
-Upstream-Status: Pending [ No Author See bugzilla]
-
-Signed-off-by: Damodar Sonone <damodar.sonone@kpit.com>
-Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com>
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
- sysdeps/nptl/fork.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/sysdeps/nptl/fork.c b/sysdeps/nptl/fork.c
-index ec56a827eb..0f48933ff1 100644
---- a/sysdeps/nptl/fork.c
-+++ b/sysdeps/nptl/fork.c
-@@ -130,9 +130,9 @@ __libc_fork (void)
- _IO_list_resetlock ();
- }
-
-- /* Reset the lock the dynamic loader uses to protect its data. */
-+ /* Reset the locks the dynamic loader uses to protect its data. */
- __rtld_lock_initialize (GL(dl_load_lock));
--
-+ __rtld_lock_initialize (GL(dl_load_write_lock));
- /* Run the handlers registered for the child. */
- __run_fork_handlers (atfork_run_child);
- }
+++ /dev/null
-From 6ea962e0946da7564a774b08dd3eda28d64e9e56 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Sat, 27 Jan 2018 10:08:04 -0800
-Subject: [PATCH] Acquire ld.so lock before switching to malloc_atfork
-
-The patch is from
- https://sourceware.org/bugzilla/show_bug.cgi?id=4578
-
-If a thread happens to hold dl_load_lock and have r_state set to RT_ADD or
-RT_DELETE at the time another thread calls fork(), then the child exit code
-from fork (in nptl/sysdeps/unix/sysv/linux/fork.c in our case) re-initializes
-dl_load_lock but does not restore r_state to RT_CONSISTENT. If the child
-subsequently requires ld.so functionality before calling exec(), then the
-assertion will fire.
-
-The patch acquires dl_load_lock on entry to fork() and releases it on exit
-from the parent path. The child path is initialized as currently done.
-This is essentially pthreads_atfork, but forced to be first because the
-acquisition of dl_load_lock must happen before malloc_atfork is active
-to avoid a deadlock.
-
-The patch has not yet been integrated upstream.
-
-Upstream-Status: Pending [ Not Author See bugzilla]
-
-Signed-off-by: Raghunath Lolur <Raghunath.Lolur@kpit.com>
-Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com>
-Signed-off-by: Zhixiong Chi <zhixiong.chi@windriver.com>
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
- sysdeps/nptl/fork.c | 7 +++++++
- 1 file changed, 7 insertions(+)
-
-diff --git a/sysdeps/nptl/fork.c b/sysdeps/nptl/fork.c
-index 0f48933ff1..eef3f9669b 100644
---- a/sysdeps/nptl/fork.c
-+++ b/sysdeps/nptl/fork.c
-@@ -25,6 +25,7 @@
- #include <tls.h>
- #include <hp-timing.h>
- #include <ldsodefs.h>
-+#include <libc-lock.h>
- #include <stdio-lock.h>
- #include <atomic.h>
- #include <nptl/pthreadP.h>
-@@ -56,6 +57,9 @@ __libc_fork (void)
- bool multiple_threads = THREAD_GETMEM (THREAD_SELF, header.multiple_threads);
-
- __run_fork_handlers (atfork_run_prepare);
-+ /* grab ld.so lock BEFORE switching to malloc_atfork */
-+ __rtld_lock_lock_recursive (GL(dl_load_lock));
-+ __rtld_lock_lock_recursive (GL(dl_load_write_lock));
-
- /* If we are not running multiple threads, we do not have to
- preserve lock state. If fork runs from a signal handler, only
-@@ -150,6 +154,9 @@ __libc_fork (void)
-
- /* Run the handlers registered for the parent. */
- __run_fork_handlers (atfork_run_parent);
-+ /* unlock ld.so last, because we locked it first */
-+ __rtld_lock_unlock_recursive (GL(dl_load_write_lock));
-+ __rtld_lock_unlock_recursive (GL(dl_load_lock));
- }
-
- return pid;
