now correctly init the thread id in the pthread struct for main thread and threads spawned with spawn_thread(). This definitely helps for #7235.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40665 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/libroot/libroot_private.h

@@ -41,6 +41,8 @@ void __init_pwd_backend(void);
 void __reinit_pwd_backend_after_fork(void);
 void* __arch_get_caller(void);
 
+void __init_pthread(void);
+
 
 #ifdef __cplusplus
 }

src/system/libroot/libroot_init.c

@@ -60,6 +60,7 @@ initialize_before(image_id imageID)
 	__init_env(__gRuntimeLoader->program_args);
 	__init_heap_post_env();
 	__init_pwd_backend();
+	__init_pthread();
 }
 
 

src/system/libroot/os/thread.c

@@ -99,7 +99,10 @@ spawn_thread(thread_func entry, const char *name, int32 priority, void *data)
 	attributes.stack_address = NULL;
 	attributes.stack_size = 0;
 
-	return _kern_spawn_thread(&attributes);
+	thread->id = _kern_spawn_thread(&attributes);
+	if (thread->id < 0)
+		free(thread);
+	return thread->id;
 }
 
 

src/system/libroot/posix/pthread/pthread.c

@@ -5,7 +5,8 @@
  */
 
 
-#include "pthread_private.h"
+#include <libroot_private.h>
+#include <pthread_private.h>
 
 #include <signal.h>
 #include <stdlib.h>
@@ -93,6 +94,13 @@ __allocate_pthread(void *data)
 }
 
 
+void
+__init_pthread(void)
+{
+	sMainThread.id = find_thread(NULL);
+}
+
+
 // #pragma mark - public API