* Changed _kern_spawn_thread() and create_thread(): Instead of individual

arguments they get a single thread_creation_attributes structure now.
* Added stack_address and stack_size to thread_creation_attributes,
  which allow to specify the stack size or the stack to be used for the
  new user thread.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25389 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/kernel.h

@@ -37,6 +37,8 @@
 /** Size of the stack given to teams in user space */
 #define USER_MAIN_THREAD_STACK_SIZE	(16 * 1024 * 1024)	// 16 MB
 #define USER_STACK_SIZE				(256 * 1024)		// 256 kB
+#define MIN_USER_STACK_SIZE			(4 * 1024)			// 4 KB
+#define MAX_USER_STACK_SIZE			(16 * 1024 * 1024)	// 16 MB
 #define USER_STACK_GUARD_PAGES		4					// 16 kB
 
 /** Size of the environmental variables space for a process */

headers/private/kernel/syscalls.h

@@ -33,6 +33,7 @@ struct stat;
 
 struct disk_device_job_progress_info;
 struct partitionable_space_data;
+struct thread_creation_attributes;
 struct user_disk_device_data;
 struct user_disk_device_job_info;
 struct user_disk_system_info;
@@ -107,8 +108,8 @@ extern pid_t		_kern_setpgid(pid_t process, pid_t group);
 extern pid_t		_kern_setsid(void);
 extern status_t		_kern_change_root(const char *path);
 
-extern thread_id	_kern_spawn_thread(int32 (*func)(thread_func, void *),
-						const char *name, int32 priority, void *data1, void *data2);
+extern thread_id	_kern_spawn_thread(
+						struct thread_creation_attributes* attributes);
 extern thread_id	_kern_find_thread(const char *name);
 extern status_t		_kern_suspend_thread(thread_id thread);
 extern status_t		_kern_resume_thread(thread_id thread);

headers/private/kernel/thread.h

@@ -20,6 +20,21 @@
 
 struct kernel_args;
 struct select_info;
+struct thread_creation_attributes;
+
+struct thread_creation_attributes {
+	int32 (*entry)(thread_func, void *);
+	const char*	name;
+	int32		priority;
+	void*		args1;
+	void*		args2;
+	void*		stack_address;
+	size_t		stack_size;
+
+	// when calling kernel only
+	team_id		team;
+	thread_id	thread;
+};
 
 
 #ifdef __cplusplus
@@ -89,7 +104,7 @@ status_t _user_rename_thread(thread_id thread, const char *name);
 status_t _user_suspend_thread(thread_id thread);
 status_t _user_resume_thread(thread_id thread);
 status_t _user_rename_thread(thread_id thread, const char *name);
-thread_id _user_spawn_thread(thread_entry_func entry, const char *name, int32 priority, void *arg1, void *arg2);
+thread_id _user_spawn_thread(struct thread_creation_attributes* attributes);
 status_t _user_wait_for_thread(thread_id id, status_t *_returnCode);
 status_t _user_snooze_etc(bigtime_t timeout, int timebase, uint32 flags);
 status_t _user_kill_thread(thread_id thread);