[PATCH] uml: fix some UML own initcall macros

UML has his own initcall mechanism to handle his special userspace
initialization (they are called in different moments, so they are indeed

It must also duplicate some definition for the benefit of userspace code - but
those definition weren't in sync with the main code.  Also, the UML own macros
missed __attribute_used__.  Both problems are fixed by this patch.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/include/init.h

@@ -40,9 +40,18 @@
 typedef int (*initcall_t)(void);
 typedef void (*exitcall_t)(void);
 
-#define __init          __attribute__ ((__section__ (".text.init")))
-#define __exit          __attribute__ ((unused, __section__(".text.exit")))
-#define __initdata      __attribute__ ((__section__ (".data.init")))
+/* These are for everybody (although not all archs will actually
+   discard it in modules) */
+#define __init		__attribute__ ((__section__ (".init.text")))
+#define __initdata	__attribute__ ((__section__ (".init.data")))
+#define __exitdata	__attribute__ ((__section__(".exit.data")))
+#define __exit_call	__attribute_used__ __attribute__ ((__section__ (".exitcall.exit")))
+
+#ifdef MODULE
+#define __exit		__attribute__ ((__section__(".exit.text")))
+#else
+#define __exit		__attribute_used__ __attribute__ ((__section__(".exit.text")))
+#endif
 
 #endif
 
@@ -94,11 +103,11 @@ extern struct uml_param __uml_setup_start, __uml_setup_end;
  * Mark functions and data as being only used at initialization
  * or exit time.
  */
-#define __uml_init_setup	__attribute__ ((unused,__section__ (".uml.setup.init")))
-#define __uml_setup_help	__attribute__ ((unused,__section__ (".uml.help.init")))
-#define __uml_init_call		__attribute__ ((unused,__section__ (".uml.initcall.init")))
-#define __uml_postsetup_call	__attribute__ ((unused,__section__ (".uml.postsetup.init")))
-#define __uml_exit_call		__attribute__ ((unused,__section__ (".uml.exitcall.exit")))
+#define __uml_init_setup	__attribute_used__ __attribute__ ((__section__ (".uml.setup.init")))
+#define __uml_setup_help	__attribute_used__ __attribute__ ((__section__ (".uml.help.init")))
+#define __uml_init_call		__attribute_used__ __attribute__ ((__section__ (".uml.initcall.init")))
+#define __uml_postsetup_call	__attribute_used__ __attribute__ ((__section__ (".uml.postsetup.init")))
+#define __uml_exit_call		__attribute_used__ __attribute__ ((__section__ (".uml.exitcall.exit")))
 
 #endif /* _LINUX_UML_INIT_H */