Moved "__progname" from startup code to libroot_init.c (because BeOS start_dyn.o

doesn't export it), initialization has also moved to initialize_before().
Added BeOS compatibility stubs to allow execution of BeOS native apps - added
comments to every function; some of them might be removed later on again.
Also moved "environ" to posix/stdlib/env.c for the same reason.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2446 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/libroot/libroot_init.c

@@ -1,21 +1,71 @@
 /* 
-** Copyright 2002, Manuel J. Petit. All rights reserved.
-** Distributed under the terms of the NewOS License.
+** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
 */
 
+
 #include <user_runtime.h>
+#include <string.h>
 
 
-extern void __init__dlfcn(struct uspace_program_args const *args);
 extern void __init__image(struct uspace_program_args const *args);
-
+extern void __init__dlfcn(struct uspace_program_args const *args);
 
 void initialize_before(image_id imageID, struct uspace_program_args const *args);
 
+char *__progname = NULL;
+
+thread_id __main_thread_id;
+char **argv_save;
+	// needed for BeOS compatibility - they get set in the original
+	// BeOS startup code, but they won't be initialized when the
+	// OpenBeOS startup code is used.
+
+
+// ToDo: these functions are defined in libgcc - this one is included in
+//		libroot.so in BeOS, but we probably don't want to do that.
+//		Since we don't yet have libgcc at all, it's defined here for now
+//		so that BeOS executables will find them.
+//		Remove them later!
+
+
+void __deregister_frame_info(void);
+void
+__deregister_frame_info(void)
+{
+}
+
+
+void __register_frame_info(void);
+void
+__register_frame_info(void)
+{
+}
+
+
 void
 initialize_before(image_id imageID, struct uspace_program_args const *args)
 {
-	__init__dlfcn(args);
+	char *programPath = args->argv[0];
+	if (programPath) {
+		if ((__progname = strrchr(programPath, '/')) == NULL)
+			__progname = programPath;
+		else
+			__progname++;
+	}
+
 	__init__image(args);
+	__init__dlfcn(args);
+}
+
+
+void _init_c_library_(void);
+void
+_init_c_library_(void)
+{
+	// This function is called from the BeOS start_dyn.o - so it's called once
+	// for every application that was compiled under BeOS.
+	// Our libroot functions are already initialized above, so we don't have to
+	// do anything here.
 }
 

src/kernel/libroot/os/image.c

@@ -64,3 +64,13 @@ __init__image(struct uspace_program_args const *args)
 {
 	gRuntimeLinker = args->rld_export;
 }
+
+
+void _call_init_routines_(void);
+void
+_call_init_routines_(void)
+{
+	// This is called by the original BeOS startup code.
+	// We don't need it, because our loader already does the job, right?
+}
+

src/kernel/libroot/os/thread.c

@@ -146,3 +146,11 @@ snooze_until(bigtime_t time, int timeBase)
 }
 
 
+void _thread_do_exit_notification(void);
+void
+_thread_do_exit_notification(void)
+{
+	// this is called from the original BeOS startup code
+	// has probably to do with the on_exit stuff.
+}
+

src/kernel/libroot/posix/stdlib/env.c

@@ -6,6 +6,9 @@
 #include <stdlib.h>
 
 
+char **environ = NULL;
+
+
 int setenv(const char *name, const char *value, int overwrite)
 {
 	return sys_setenv(name, value, overwrite);