[src/trunk]: src/sys/compat/irix Use stack rlimit for the stack size, and not...

[manu <manu%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/340c4a8d5a81
branches:  trunk
changeset: 526230:340c4a8d5a81
user:      manu <manu%NetBSD.org@localhost>
date:      Sun Apr 28 19:42:13 2002 +0000

description:
Use stack rlimit for the stack size, and not the current stack size. This
avoids requestion 2*rlimit on second sproc call.

diffstat:

 sys/compat/irix/irix_prctl.c |  14 +++++++++-----
 1 files changed, 9 insertions(+), 5 deletions(-)

diffs (44 lines):

diff -r 9352db28e489 -r 340c4a8d5a81 sys/compat/irix/irix_prctl.c
--- a/sys/compat/irix/irix_prctl.c      Sun Apr 28 17:56:53 2002 +0000
+++ b/sys/compat/irix/irix_prctl.c      Sun Apr 28 19:42:13 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: irix_prctl.c,v 1.6 2002/04/28 17:56:53 manu Exp $ */
+/*     $NetBSD: irix_prctl.c,v 1.7 2002/04/28 19:42:13 manu Exp $ */
 
 /*-
  * Copyright (c) 2001-2002 The NetBSD Foundation, Inc.
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: irix_prctl.c,v 1.6 2002/04/28 17:56:53 manu Exp $");
+__KERNEL_RCSID(0, "$NetBSD: irix_prctl.c,v 1.7 2002/04/28 19:42:13 manu Exp $");
 
 #include <sys/errno.h>
 #include <sys/types.h>
@@ -45,6 +45,7 @@
 #include <sys/signal.h>
 #include <sys/systm.h>
 #include <sys/exec.h>
+#include <sys/resourcevar.h>
 
 #include <uvm/uvm_extern.h>
 
@@ -200,11 +201,14 @@
         * Setting up child stack 
         */
        if (len == 0) 
-               len = (u_long)p->p_vmspace->vm_minsaddr 
-                   - (u_long)p->p_vmspace->vm_maxsaddr;
-       if (sp == NULL)
+               len = p->p_rlimit[RLIMIT_STACK].rlim_cur;
+       if (sp == NULL) {
                sp = (caddr_t)(round_page(tf->f_regs[SP]) 
                    - IRIX_SPROC_STACK_OFFSET - len);
+               while (trunc_page((u_long)sp) >= 
+                   (u_long)p->p_vmspace->vm_maxsaddr)
+                       sp -= IRIX_SPROC_STACK_OFFSET;
+       }
 
        if (inh & IRIX_PR_SADDR) {
                bzero(&vmc, sizeof(vmc));