From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Date: Wed, 11 Oct 2006 08:21:36 +0000 (-0700)
Subject: [PATCH] uml: fix uname under setarch i386
X-Git-Tag: v2.6.19-rc2~91
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=69fada32d868d7f4be128ea4df8fbe4fd897fc34;p=profile%2Fivi%2Fkernel-x86-ivi.git

[PATCH] uml: fix uname under setarch i386

On a 64bit Uml, if run under "setarch i386" (which a user did), uname()
currently returns the obtained i686 as machine - fix that.  Btw, I'm quite
surprised that under setarch i386 a 64-bit binary can run.

Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c
index 3f5b151..56b8a50 100644
--- a/arch/um/os-Linux/util.c
+++ b/arch/um/os-Linux/util.c
@@ -80,11 +80,18 @@ void setup_machinename(char *machine_out)
 	struct utsname host;
 
 	uname(&host);
-#if defined(UML_CONFIG_UML_X86) && !defined(UML_CONFIG_64BIT)
+#ifdef UML_CONFIG_UML_X86
+# ifndef UML_CONFIG_64BIT
 	if (!strcmp(host.machine, "x86_64")) {
 		strcpy(machine_out, "i686");
 		return;
 	}
+# else
+	if (!strcmp(host.machine, "i686")) {
+		strcpy(machine_out, "x86_64");
+		return;
+	}
+# endif
 #endif
 	strcpy(machine_out, host.machine);
 }