diff options
Diffstat (limited to 'sys/alpha/include')
| -rw-r--r-- | sys/alpha/include/vmparam.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/sys/alpha/include/vmparam.h b/sys/alpha/include/vmparam.h index fead056e3d0c4..04c62a65a5460 100644 --- a/sys/alpha/include/vmparam.h +++ b/sys/alpha/include/vmparam.h @@ -1,4 +1,4 @@ -/* $Id: vmparam.h,v 1.2 1998/06/10 10:55:30 dfr Exp $ */ +/* $Id: vmparam.h,v 1.3 1998/06/14 13:45:15 dfr Exp $ */ /* From: NetBSD: vmparam.h,v 1.6 1997/09/23 23:23:23 mjacob Exp */ #ifndef _ALPHA_VMPARAM_H #define _ALPHA_VMPARAM_H @@ -54,7 +54,15 @@ * kernel stack. */ #define USRTEXT CLBYTES -#define USRSTACK VM_MAXUSER_ADDRESS +/* #define USRSTACK VM_MAXUSER_ADDRESS */ + +/* + * This stack location is suitable for OSF1 emulation. Some OSF + * programs are built as 32bit and assume that the stack is reachable + * with a 32bit value. OSF1 manages to have a variable location for + * the user stack which we should probably also support. + */ +#define USRSTACK (0x12000000LL - (UPAGES*PAGE_SIZE)) /* * Virtual memory related constants, all in bytes |