Added patch to use a separate stack when starting new threads.

patches/ntdll-Thread_Stack/0001-ntdll-Use-a-separate-stack-when-starting-new-threads.patch

@@ -0,0 +1,81 @@
+From ef57b2c7cadda78730cb57e117507c7a8a0ff6cb Mon Sep 17 00:00:00 2001
+From: Sebastian Lackner <sebastian@fds-team.de>
+Date: Wed, 13 Apr 2016 03:11:03 +0200
+Subject: ntdll: Use a separate stack when starting new threads.
+
+---
+ dlls/ntdll/thread.c | 33 +++++++++++++++++++++++----------
+ 1 file changed, 23 insertions(+), 10 deletions(-)
+
+diff --git a/dlls/ntdll/thread.c b/dlls/ntdll/thread.c
+index 07dc285..db27447 100644
+--- a/dlls/ntdll/thread.c
++++ b/dlls/ntdll/thread.c
+@@ -25,6 +25,7 @@
+ #include <stdarg.h>
+ #include <string.h>
+ #include <stdio.h>
++#include <limits.h>
+ #include <sys/types.h>
+ #ifdef HAVE_SYS_MMAN_H
+ #include <sys/mman.h>
+@@ -452,15 +453,8 @@ void exit_thread( int status )
+ static void start_thread( struct startup_info *info )
+ {
+     TEB *teb = info->teb;
+-    struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
+     PRTL_THREAD_START_ROUTINE func = info->entry_point;
+     void *arg = info->entry_arg;
+-    struct debug_info debug_info;
+-
+-    debug_info.str_pos = debug_info.strings;
+-    debug_info.out_pos = debug_info.output;
+-    thread_data->debug_info = &debug_info;
+-    thread_data->pthread_id = pthread_self();
+ 
+     signal_init_thread( teb );
+     server_init_thread( func );
+@@ -476,6 +470,26 @@ static void start_thread( struct startup_info *info )
+ 
+ 
+ /***********************************************************************
++ *           call_start_thread
++ *
++ * Setup debug_info struct and call start_thread on target stack.
++ */
++static void call_start_thread( struct startup_info *info )
++{
++    TEB *teb = info->teb;
++    struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
++    struct debug_info debug_info;
++
++    debug_info.str_pos = debug_info.strings;
++    debug_info.out_pos = debug_info.output;
++    thread_data->debug_info = &debug_info;
++    thread_data->pthread_id = pthread_self();
++
++    wine_switch_to_stack( (void (*)(void *))start_thread, info, teb->Tib.StackBase );
++}
++
++
++/***********************************************************************
+  *              RtlCreateUserThread   (NTDLL.@)
+  */
+ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
+@@ -581,11 +595,10 @@ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *
+     if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
+ 
+     pthread_attr_init( &attr );
+-    pthread_attr_setstack( &attr, teb->DeallocationStack,
+-                           (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
++    pthread_attr_setstacksize( &attr, PTHREAD_STACK_MIN );
+     pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
+     interlocked_xchg_add( &nb_threads, 1 );
+-    if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
++    if (pthread_create( &pthread_id, &attr, (void * (*)(void *))call_start_thread, info ))
+     {
+         interlocked_xchg_add( &nb_threads, -1 );
+         pthread_attr_destroy( &attr );
+-- 
+2.7.1
+

patches/ntdll-Thread_Stack/definition

@@ -0,0 +1,2 @@
+Fixes: Use a separate stack when starting new threads
+Depends: ntdll-ThreadTime

patches/patchinstall.sh

@@ -232,6 +232,7 @@ patch_enable_all ()
 	enable_ntdll_SystemRecommendedSharedDataAlignment="$1"
 	enable_ntdll_SystemRoot_Symlink="$1"
 	enable_ntdll_ThreadTime="$1"
+	enable_ntdll_Thread_Stack="$1"
 	enable_ntdll_Threading="$1"
 	enable_ntdll_User_Shared_Data="$1"
 	enable_ntdll_WRITECOPY="$1"
@@ -869,6 +870,9 @@ patch_enable ()
 		ntdll-ThreadTime)
 			enable_ntdll_ThreadTime="$2"
 			;;
+		ntdll-Thread_Stack)
+			enable_ntdll_Thread_Stack="$2"
+			;;
 		ntdll-Threading)
 			enable_ntdll_Threading="$2"
 			;;
@@ -2139,6 +2143,13 @@ if test "$enable_ntdll_WRITECOPY" -eq 1; then
 	enable_ws2_32_WriteWatches=1
 fi
 
+if test "$enable_ntdll_Thread_Stack" -eq 1; then
+	if test "$enable_ntdll_ThreadTime" -gt 1; then
+		abort "Patchset ntdll-ThreadTime disabled, but ntdll-Thread_Stack depends on that."
+	fi
+	enable_ntdll_ThreadTime=1
+fi
+
 if test "$enable_ntdll_SystemRoot_Symlink" -eq 1; then
 	if test "$enable_ntdll_Exception" -gt 1; then
 		abort "Patchset ntdll-Exception disabled, but ntdll-SystemRoot_Symlink depends on that."
@@ -5115,6 +5126,21 @@ if test "$enable_ntdll_ThreadTime" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset ntdll-Thread_Stack
+# |
+# | This patchset has the following (direct or indirect) dependencies:
+# |   *	ntdll-ThreadTime
+# |
+# | Modified files:
+# |   *	dlls/ntdll/thread.c
+# |
+if test "$enable_ntdll_Thread_Stack" -eq 1; then
+	patch_apply ntdll-Thread_Stack/0001-ntdll-Use-a-separate-stack-when-starting-new-threads.patch
+	(
+		echo '+    { "Sebastian Lackner", "ntdll: Use a separate stack when starting new threads.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset ntdll-Threading
 # |
 # | Modified files: