From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin-patches@cygwin.com
Cc: "Takashi Yano" <takashi.yano@nifty.ne.jp>,
"Mümin A ." <muminaydin06@gmail.com>,
"Corinna Vinschen" <corinna@vinschen.de>
Subject: [PATCH] Cygwin: thread: Reset _my_tls.tid if it's pthread_null in init_mainthread().
Date: Fri, 23 Jun 2023 00:30:08 +0900 [thread overview]
Message-ID: <20230622153008.392-1-takashi.yano@nifty.ne.jp> (raw)
Currently, _my_tls.tid is set to pthread_null if pthread::self()
is called before pthread::init_mainthread(). As a result, pthread::
init_mainthread() does not set _my_tls.tid appropriately. Due to
this, pthread_join() fails in LDAP environment if the program is
the first program which loads cygwin1.dll.
https://cygwin.com/pipermail/cygwin/2023-June/253792.html
With this patch, _my_tls.tid is re-initialized in pthread::
init_mainthread() if it is pthread_null.
Reported-by: Mümin A. <muminaydin06@gmail.com>
Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
---
winsup/cygwin/thread.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc
index 5c1284a93..f614e01c4 100644
--- a/winsup/cygwin/thread.cc
+++ b/winsup/cygwin/thread.cc
@@ -364,7 +364,7 @@ void
pthread::init_mainthread ()
{
pthread *thread = _my_tls.tid;
- if (!thread)
+ if (!thread || thread == pthread_null::get_null_pthread ())
{
thread = new pthread ();
if (!thread)
--
2.39.0
next reply other threads:[~2023-06-22 15:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-22 15:30 Takashi Yano [this message]
2023-07-03 10:39 ` Corinna Vinschen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230622153008.392-1-takashi.yano@nifty.ne.jp \
--to=takashi.yano@nifty.ne.jp \
--cc=corinna@vinschen.de \
--cc=cygwin-patches@cygwin.com \
--cc=muminaydin06@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).