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use STACKGAPBASE

This commit is contained in:
deraadt 1994-09-28 00:41:17 +00:00
parent 0e2babc5f4
commit 042d2d08a1
3 changed files with 11 additions and 12 deletions
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8
sys/compat/sunos/sun_misc.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: sun_misc.c,v 1.30 1994/06/29 06:30:20 cgd Exp $ */
/* $NetBSD: sun_misc.c,v 1.31 1994/09/28 00:41:28 deraadt Exp $ */
/*
* Copyright (c) 1992, 1993
@ -235,7 +235,7 @@ sun_mount(p, uap, retval)
return (error);
if (strcmp(fsname, "4.2") == 0) {
uap->type = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
uap->type = STACKGAPBASE;
if (error = copyout("ufs", uap->type, sizeof("ufs")))
return (error);
} else if (strcmp(fsname, "nfs") == 0) {
@ -250,7 +250,7 @@ sun_mount(p, uap, retval)
return (error);
bcopy(&sain, &sa, sizeof sa);
sa.sa_len = sizeof(sain);
uap->data = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
uap->data = STACKGAPBASE;
na.addr = (struct sockaddr *)((int)uap->data + sizeof na);
na.addrlen = sizeof(struct sockaddr);
na.sotype = SOCK_DGRAM;
@ -705,7 +705,7 @@ sun_nfssvc(p, uap, retval)
bzero(&outuap, sizeof outuap);
outuap.fd = uap->fd;
outuap.mskval = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
outuap.mskval = STACKGAPBASE;
outuap.msklen = sizeof sa;
outuap.mtchval = outuap.mskval + sizeof sa;
outuap.mtchlen = sizeof sa;

8
sys/compat/sunos/sunos_misc.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: sunos_misc.c,v 1.30 1994/06/29 06:30:20 cgd Exp $ */
/* $NetBSD: sunos_misc.c,v 1.31 1994/09/28 00:41:28 deraadt Exp $ */
/*
* Copyright (c) 1992, 1993
@ -235,7 +235,7 @@ sun_mount(p, uap, retval)
return (error);
if (strcmp(fsname, "4.2") == 0) {
uap->type = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
uap->type = STACKGAPBASE;
if (error = copyout("ufs", uap->type, sizeof("ufs")))
return (error);
} else if (strcmp(fsname, "nfs") == 0) {
@ -250,7 +250,7 @@ sun_mount(p, uap, retval)
return (error);
bcopy(&sain, &sa, sizeof sa);
sa.sa_len = sizeof(sain);
uap->data = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
uap->data = STACKGAPBASE;
na.addr = (struct sockaddr *)((int)uap->data + sizeof na);
na.addrlen = sizeof(struct sockaddr);
na.sotype = SOCK_DGRAM;
@ -705,7 +705,7 @@ sun_nfssvc(p, uap, retval)
bzero(&outuap, sizeof outuap);
outuap.fd = uap->fd;
outuap.mskval = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
outuap.mskval = STACKGAPBASE;
outuap.msklen = sizeof sa;
outuap.mtchval = outuap.mskval + sizeof sa;
outuap.mtchlen = sizeof sa;

7
sys/sys/exec.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: exec.h,v 1.45 1994/08/15 22:04:47 mycroft Exp $ */
/* $NetBSD: exec.h,v 1.46 1994/09/28 00:41:17 deraadt Exp $ */
/*-
* Copyright (c) 1994 Christopher G. Demetriou
@ -65,15 +65,14 @@ struct ps_strings {
/*
* Below the PS_STRINGS and sigtramp, we may require a gap on the stack
* (used to copyin/copyout various emulation data structures). The base
* address of this gap may need alignment, so use this to reference it:
* (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
* (used to copyin/copyout various emulation data structures).
*/
#if defined(COMPAT_SUNOS) || defined(COMPAT_ULTRIX) || defined(COMPAT_IBCS2)
#define STACKGAPLEN 400 /* plenty enough for now */
#else
#define STACKGAPLEN 0
#endif
#define STACKGAPBASE ((caddr_t)ALIGN((caddr_t)PS_STRINGS - szsigcode - STACKGAPLEN))
/*
* Arguments to the exec system call.