- 0.60.5

[packages/busybox.git] / busybox-pivot_root.patch

diff -uNr busybox-0.60.1.orig/libbb/syscalls.c busybox-0.60.1/libbb/syscalls.c
--- busybox-0.60.1.orig/libbb/syscalls.c	Fri Jun 29 18:59:32 2001
+++ busybox-0.60.1/libbb/syscalls.c	Thu Apr 25 08:11:30 2002
@@ -45,29 +45,27 @@
 #endif
 
 #ifndef __NR_pivot_root
-#warning This kernel does not support the pivot_root syscall
-#warning -> The pivot_root system call is being stubbed out...
-int pivot_root(const char * new_root,const char * put_old)
-{
-	/* BusyBox was compiled against a kernel that did not support
-	 *  the pivot_root system call.  To make this application work,
-	 *  you will need to recompile with a kernel supporting the
-	 *  pivot_root system call.
-	 */
-	fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n");
-	fprintf(stderr, "with a kernel supporting the pivot_root system call. -Erik\n\n");
-	errno=ENOSYS;
-	return -1;
-}
-#else
-#  if defined(__ia64__)
+# warning "Guessing pivot_root() syscall number"
+# ifdef __i386__
+#  define __NR_pivot_root 217
+# elif defined(__alpha__)
+#  define __NR_pivot_root 374
+# elif defined(__sparc__) || defined(__sparc64__)
+#  define __NR_pivot_root 146
+# elif defined(__powerpc__)
+#  define __NR_pivot_root 203
+# else
+#  error "Get kernel-2.4 headers!"
+# endif
+#endif
+
+#if defined(__ia64__)
 	int pivot_root(const char * new_root,const char * put_old)
 	{
 		return(syscall(__NR_pivot_root, new_root, put_old));
 	}
-#  else
+#else
     _syscall2(int,pivot_root,const char *,new_root,const char *,put_old);
-#  endif
 #endif