1 files changed, 0 insertions, 68 deletions

diff --git a/meta/recipes-core/glibc/glibc/0027-Acquire-ld.so-lock-before-switching-to-malloc_atfork.patch b/meta/recipes-core/glibc/glibc/0027-Acquire-ld.so-lock-before-switching-to-malloc_atfork.patch
deleted file mode 100644
index 5bc813a900..0000000000
--- a/meta/recipes-core/glibc/glibc/0027-Acquire-ld.so-lock-before-switching-to-malloc_atfork.patch
+++ /dev/null
@@ -1,68 +0,0 @@
-From eb43af9afba3c2b499be6e71b69687d4e7c6272a 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 27/30] 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 5c9bb44372..84a1a404b3 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;
--- 
-2.20.1
-