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

This commit is contained in:
Sebastian Lackner
2016-04-13 03:15:01 +02:00
parent 579d7f8032
commit 95ff86b496
3 changed files with 109 additions and 0 deletions

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@ -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

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