Module Name: src
Committed By: maxv
Date: Sat Sep 17 12:09:23 UTC 2016
Modified Files:
src/sys/kern: init_main.c
Log Message:
This is just a temporary stack that holds fake arguments, and that gets
remapped as RW in sys_execve. Still, in this small window, it does not need
to be executable.
To generate a diff of this commit:
cvs rdiff -u -r1.482 -r1.483 src/sys/kern/init_main.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/init_main.c
diff -u src/sys/kern/init_main.c:1.482 src/sys/kern/init_main.c:1.483
--- src/sys/kern/init_main.c:1.482 Thu Jul 7 06:55:43 2016
+++ src/sys/kern/init_main.c Sat Sep 17 12:09:22 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: init_main.c,v 1.482 2016/07/07 06:55:43 msaitoh Exp $ */
+/* $NetBSD: init_main.c,v 1.483 2016/09/17 12:09:22 maxv Exp $ */
/*-
* Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
@@ -97,7 +97,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.482 2016/07/07 06:55:43 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.483 2016/09/17 12:09:22 maxv Exp $");
#include "opt_ddb.h"
#include "opt_inet.h"
@@ -931,10 +931,10 @@ start_init(void *arg)
*/
addr = (vaddr_t)STACK_ALLOC(USRSTACK, PAGE_SIZE);
if (uvm_map(&p->p_vmspace->vm_map, &addr, PAGE_SIZE,
- NULL, UVM_UNKNOWN_OFFSET, 0,
- UVM_MAPFLAG(UVM_PROT_ALL, UVM_PROT_ALL, UVM_INH_COPY,
- UVM_ADV_NORMAL,
- UVM_FLAG_FIXED|UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW)) != 0)
+ NULL, UVM_UNKNOWN_OFFSET, 0,
+ UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_RW, UVM_INH_COPY,
+ UVM_ADV_NORMAL,
+ UVM_FLAG_FIXED|UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW)) != 0)
panic("init: couldn't allocate argument space");
p->p_vmspace->vm_maxsaddr = (void *)STACK_MAX(addr, PAGE_SIZE);
