UML - Fix boot crash

My copying of linux/init.h didn't go far enough. The definition of __used singled out gcc minor version 3, but didn't care what the major version was. This broke when unit-at-a-time was added and gcc started throwing out initcalls. This results in an early boot crash when ptrace tries to initialize a process with an empty, uninitialized register set. Signed-off-by: Jeff Dike <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
rtvt123 · Jul 23, 2008 · 7c1fed0 · 7c1fed0
1 parent 4d8f54d
commit 7c1fed0
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/arch/um/include/init.h b/arch/um/include/init.h
@@ -45,12 +45,20 @@ typedef void (*exitcall_t)(void);
 # define __section(S) __attribute__ ((__section__(#S)))
 #endif
 
+#if __GNUC__ == 3
+
 #if __GNUC_MINOR__ >= 3
 # define __used			__attribute__((__used__))
 #else
 # define __used			__attribute__((__unused__))
 #endif
 
+#else
+#if __GNUC__ == 4
+# define __used			__attribute__((__used__))
+#endif
+#endif
+
 #else
 #include <linux/compiler.h>
 #endif