From 0158bceec78c7891a7ef672770bf42e65fd064dd Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Wed, 8 Jan 2020 22:47:51 -0500
Subject: libthread: run first thread in proc on system stack

For pthread systems that are fussy about which stack is used,
this makes sure that threadmain runs on a system stack.
If you only use proccreate (never threadcreate), all threads run
on system stacks.
---
 man/man3/thread.3 | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'man/man3')

diff --git a/man/man3/thread.3 b/man/man3/thread.3
index 0ebbddd0..9088ae2e 100644
--- a/man/man3/thread.3
+++ b/man/man3/thread.3
@@ -169,6 +169,14 @@ initialized to the desired value
 .B mainstacksize
 .B =
 .BR 1024 ).
+When using the
+.I pthread
+library, 
+.B mainstacksize
+is ignored, as is the stack size argument to
+.BR proccreate :
+the first thread in each proc
+runs on the native system stack.
 .PP
 .I Threadcreate
 creates a new thread in the calling proc, returning a unique integer
-- 
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