[uml-devel] [PATCH 6/9] UML - UML/i386 is i386 when running on x86_64

[uml-devel] [PATCH 6/9] UML - UML/i386 is i386 when running on x86_64

[Jeff Dike]

From Paolo Giarrusso - Make a UML/i386 instance running on x86_64 pretend
to be i386 rather than x86_64.

Signed-off-by: Jeff Dike <jdike@addtoit.com>

Index: linux-2.6.12-rc6/arch/um/kernel/user_util.c
===================================================================
--- linux-2.6.12-rc6.orig/arch/um/kernel/user_util.c	2005-08-08 12:32:06.000000000 -0400
+++ linux-2.6.12-rc6/arch/um/kernel/user_util.c	2005-08-12 14:00:34.000000000 -0400
@@ -132,7 +132,12 @@
 	struct utsname host;
 
 	uname(&host);
-	strcpy(machine_out, host.machine);
+	/* XXX: crude detection of 32-bit binary. */
+	if (sizeof(long) == 4 && !strcmp(host.machine, "x86_64")) {
+		strcpy(machine_out, "i686");
+	} else {
+		strcpy(machine_out, host.machine);
+	}
 }
 
 char host_info[(_UTSNAME_LENGTH + 1) * 4 + _UTSNAME_NODENAME_LENGTH + 1];



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