Module Name:    src
Committed By:   kamil
Date:           Tue Dec 19 08:48:19 UTC 2017

Modified Files:
        src/sys/compat/netbsd32: netbsd32_netbsd.c netbsd32_syscall.h
            netbsd32_syscallargs.h netbsd32_syscalls.c netbsd32_sysent.c
            netbsd32_systrace_args.c syscalls.master
        src/sys/kern: init_sysent.c syscalls.c syscalls.master systrace_args.c
        src/sys/rump/librump/rumpkern: rump_syscalls.c
        src/sys/sys: syscall.h syscallargs.h
        src/sys/uvm: uvm_mmap.c

Log Message:
Drop the sstk(2) syscall stub

sstk - change stack section size

This functionality has never been implemented and is a remnant from 16-bit
UNIX. This stub appeared with the first NetBSD commit.

Sponsored by <The NetBSD Foundation>


To generate a diff of this commit:
cvs rdiff -u -r1.208 -r1.209 src/sys/compat/netbsd32/netbsd32_netbsd.c
cvs rdiff -u -r1.130 -r1.131 src/sys/compat/netbsd32/netbsd32_syscall.h \
    src/sys/compat/netbsd32/netbsd32_syscallargs.h
cvs rdiff -u -r1.128 -r1.129 src/sys/compat/netbsd32/netbsd32_syscalls.c \
    src/sys/compat/netbsd32/netbsd32_sysent.c
cvs rdiff -u -r1.20 -r1.21 src/sys/compat/netbsd32/netbsd32_systrace_args.c
cvs rdiff -u -r1.116 -r1.117 src/sys/compat/netbsd32/syscalls.master
cvs rdiff -u -r1.315 -r1.316 src/sys/kern/init_sysent.c
cvs rdiff -u -r1.306 -r1.307 src/sys/kern/syscalls.c
cvs rdiff -u -r1.287 -r1.288 src/sys/kern/syscalls.master
cvs rdiff -u -r1.24 -r1.25 src/sys/kern/systrace_args.c
cvs rdiff -u -r1.133 -r1.134 src/sys/rump/librump/rumpkern/rump_syscalls.c
cvs rdiff -u -r1.300 -r1.301 src/sys/sys/syscall.h
cvs rdiff -u -r1.284 -r1.285 src/sys/sys/syscallargs.h
cvs rdiff -u -r1.167 -r1.168 src/sys/uvm/uvm_mmap.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/compat/netbsd32/netbsd32_netbsd.c
diff -u src/sys/compat/netbsd32/netbsd32_netbsd.c:1.208 src/sys/compat/netbsd32/netbsd32_netbsd.c:1.209
--- src/sys/compat/netbsd32/netbsd32_netbsd.c:1.208	Wed Dec  6 19:15:27 2017
+++ src/sys/compat/netbsd32/netbsd32_netbsd.c	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-/*	$NetBSD: netbsd32_netbsd.c,v 1.208 2017/12/06 19:15:27 christos Exp $	*/
+/*	$NetBSD: netbsd32_netbsd.c,v 1.209 2017/12/19 08:48:19 kamil Exp $	*/
 
 /*
  * Copyright (c) 1998, 2001, 2008 Matthew R. Green
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: netbsd32_netbsd.c,v 1.208 2017/12/06 19:15:27 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: netbsd32_netbsd.c,v 1.209 2017/12/19 08:48:19 kamil Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_ddb.h"
@@ -713,18 +713,6 @@ netbsd32_sbrk(struct lwp *l, const struc
 }
 
 int
-netbsd32_sstk(struct lwp *l, const struct netbsd32_sstk_args *uap, register_t *retval)
-{
-	/* {
-		syscallarg(int) incr;
-	} */
-	struct sys_sstk_args ua;
-
-	NETBSD32TO64_UAP(incr);
-	return (sys_sstk(l, &ua, retval));
-}
-
-int
 netbsd32_munmap(struct lwp *l, const struct netbsd32_munmap_args *uap, register_t *retval)
 {
 	/* {

Index: src/sys/compat/netbsd32/netbsd32_syscall.h
diff -u src/sys/compat/netbsd32/netbsd32_syscall.h:1.130 src/sys/compat/netbsd32/netbsd32_syscall.h:1.131
--- src/sys/compat/netbsd32/netbsd32_syscall.h:1.130	Tue Dec 19 07:58:50 2017
+++ src/sys/compat/netbsd32/netbsd32_syscall.h	Tue Dec 19 08:48:19 2017
@@ -1,10 +1,10 @@
-/* $NetBSD: netbsd32_syscall.h,v 1.130 2017/12/19 07:58:50 kamil Exp $ */
+/* $NetBSD: netbsd32_syscall.h,v 1.131 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call numbers.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.115 2016/10/19 09:44:01 skrll Exp
+ * created from	NetBSD: syscalls.master,v 1.116 2017/12/19 07:58:50 kamil Exp
  */
 
 #ifndef _NETBSD32_SYS_SYSCALL_H_
@@ -216,9 +216,7 @@
 /* syscall: "netbsd32_sbrk" ret: "int" args: "netbsd32_intptr_t" */
 #define	NETBSD32_SYS_netbsd32_sbrk	69
 
-/* syscall: "netbsd32_sstk" ret: "int" args: "int" */
-#define	NETBSD32_SYS_netbsd32_sstk	70
-
+				/* 70 is obsolete sstk */
 /* syscall: "compat_43_netbsd32_ommap" ret: "int" args: "netbsd32_voidp" "netbsd32_size_t" "int" "int" "int" "netbsd32_long" */
 #define	NETBSD32_SYS_compat_43_netbsd32_ommap	71
 
Index: src/sys/compat/netbsd32/netbsd32_syscallargs.h
diff -u src/sys/compat/netbsd32/netbsd32_syscallargs.h:1.130 src/sys/compat/netbsd32/netbsd32_syscallargs.h:1.131
--- src/sys/compat/netbsd32/netbsd32_syscallargs.h:1.130	Tue Dec 19 07:58:50 2017
+++ src/sys/compat/netbsd32/netbsd32_syscallargs.h	Tue Dec 19 08:48:19 2017
@@ -1,10 +1,10 @@
-/* $NetBSD: netbsd32_syscallargs.h,v 1.130 2017/12/19 07:58:50 kamil Exp $ */
+/* $NetBSD: netbsd32_syscallargs.h,v 1.131 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call argument lists.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.115 2016/10/19 09:44:01 skrll Exp
+ * created from	NetBSD: syscalls.master,v 1.116 2017/12/19 07:58:50 kamil Exp
  */
 
 #ifndef _NETBSD32_SYS_SYSCALLARGS_H_
@@ -380,11 +380,6 @@ struct netbsd32_sbrk_args {
 };
 check_syscall_args(netbsd32_sbrk)
 
-struct netbsd32_sstk_args {
-	syscallarg(int) incr;
-};
-check_syscall_args(netbsd32_sstk)
-
 struct compat_43_netbsd32_ommap_args {
 	syscallarg(netbsd32_voidp) addr;
 	syscallarg(netbsd32_size_t) len;
@@ -2741,8 +2736,6 @@ int	sys_vfork(struct lwp *, const void *
 
 int	netbsd32_sbrk(struct lwp *, const struct netbsd32_sbrk_args *, register_t *);
 
-int	netbsd32_sstk(struct lwp *, const struct netbsd32_sstk_args *, register_t *);
-
 int	compat_43_netbsd32_ommap(struct lwp *, const struct compat_43_netbsd32_ommap_args *, register_t *);
 
 int	netbsd32_ovadvise(struct lwp *, const struct netbsd32_ovadvise_args *, register_t *);

Index: src/sys/compat/netbsd32/netbsd32_syscalls.c
diff -u src/sys/compat/netbsd32/netbsd32_syscalls.c:1.128 src/sys/compat/netbsd32/netbsd32_syscalls.c:1.129
--- src/sys/compat/netbsd32/netbsd32_syscalls.c:1.128	Wed May 10 06:19:49 2017
+++ src/sys/compat/netbsd32/netbsd32_syscalls.c	Tue Dec 19 08:48:19 2017
@@ -1,14 +1,14 @@
-/* $NetBSD: netbsd32_syscalls.c,v 1.128 2017/05/10 06:19:49 riastradh Exp $ */
+/* $NetBSD: netbsd32_syscalls.c,v 1.129 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call names.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.115 2016/10/19 09:44:01 skrll Exp
+ * created from	NetBSD: syscalls.master,v 1.116 2017/12/19 07:58:50 kamil Exp
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: netbsd32_syscalls.c,v 1.128 2017/05/10 06:19:49 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: netbsd32_syscalls.c,v 1.129 2017/12/19 08:48:19 kamil Exp $");
 
 #if defined(_KERNEL_OPT)
 #if defined(_KERNEL_OPT)
@@ -98,7 +98,7 @@ const char *const netbsd32_syscallnames[
 	/*  67 */	"#67 (obsolete vread)",
 	/*  68 */	"#68 (obsolete vwrite)",
 	/*  69 */	"netbsd32_sbrk",
-	/*  70 */	"netbsd32_sstk",
+	/*  70 */	"#70 (obsolete sstk)",
 	/*  71 */	"compat_43_netbsd32_ommap",
 	/*  72 */	"vadvise",
 	/*  73 */	"netbsd32_munmap",
@@ -628,7 +628,7 @@ const char *const altnetbsd32_syscallnam
 	/*  67 */	NULL, /* obsolete vread */
 	/*  68 */	NULL, /* obsolete vwrite */
 	/*  69 */	"sbrk",
-	/*  70 */	"sstk",
+	/*  70 */	NULL, /* obsolete sstk */
 	/*  71 */	NULL, /* compat_43_netbsd32_ommap */
 	/*  72 */	"ovadvise",
 	/*  73 */	"munmap",
Index: src/sys/compat/netbsd32/netbsd32_sysent.c
diff -u src/sys/compat/netbsd32/netbsd32_sysent.c:1.128 src/sys/compat/netbsd32/netbsd32_sysent.c:1.129
--- src/sys/compat/netbsd32/netbsd32_sysent.c:1.128	Wed May 10 06:19:49 2017
+++ src/sys/compat/netbsd32/netbsd32_sysent.c	Tue Dec 19 08:48:19 2017
@@ -1,14 +1,14 @@
-/* $NetBSD: netbsd32_sysent.c,v 1.128 2017/05/10 06:19:49 riastradh Exp $ */
+/* $NetBSD: netbsd32_sysent.c,v 1.129 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call switch table.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.115 2016/10/19 09:44:01 skrll Exp
+ * created from	NetBSD: syscalls.master,v 1.116 2017/12/19 07:58:50 kamil Exp
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: netbsd32_sysent.c,v 1.128 2017/05/10 06:19:49 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: netbsd32_sysent.c,v 1.129 2017/12/19 08:48:19 kamil Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_compat_netbsd.h"
@@ -385,9 +385,8 @@ struct sysent netbsd32_sysent[] = {
 		.sy_call = (sy_call_t *)netbsd32_sbrk
 	},		/* 69 = netbsd32_sbrk */
 	{
-		ns(struct netbsd32_sstk_args),
-		.sy_call = (sy_call_t *)netbsd32_sstk
-	},		/* 70 = netbsd32_sstk */
+		.sy_call = sys_nosys,
+	},		/* 70 = filler */
 	{
 		ns(struct compat_43_netbsd32_ommap_args),
 		.sy_call = (sy_call_t *)compat_43(netbsd32_ommap)

Index: src/sys/compat/netbsd32/netbsd32_systrace_args.c
diff -u src/sys/compat/netbsd32/netbsd32_systrace_args.c:1.20 src/sys/compat/netbsd32/netbsd32_systrace_args.c:1.21
--- src/sys/compat/netbsd32/netbsd32_systrace_args.c:1.20	Tue Dec 19 07:58:50 2017
+++ src/sys/compat/netbsd32/netbsd32_systrace_args.c	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: netbsd32_systrace_args.c,v 1.20 2017/12/19 07:58:50 kamil Exp $ */
+/* $NetBSD: netbsd32_systrace_args.c,v 1.21 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call argument to DTrace register array converstion.
@@ -529,13 +529,6 @@ systrace_args(register_t sysnum, const v
 		*n_args = 1;
 		break;
 	}
-	/* netbsd32_sstk */
-	case 70: {
-		const struct netbsd32_sstk_args *p = params;
-		iarg[0] = SCARG(p, incr); /* int */
-		*n_args = 1;
-		break;
-	}
 	/* netbsd32_ommap */
 	case 71: {
 		const struct compat_43_netbsd32_ommap_args *p = params;
@@ -4283,16 +4276,6 @@ systrace_entry_setargdesc(int sysnum, in
 			break;
 		};
 		break;
-	/* netbsd32_sstk */
-	case 70:
-		switch(ndx) {
-		case 0:
-			p = "int";
-			break;
-		default:
-			break;
-		};
-		break;
 	/* netbsd32_ommap */
 	case 71:
 		switch(ndx) {
@@ -9669,11 +9652,6 @@ systrace_return_setargdesc(int sysnum, i
 		if (ndx == 0 || ndx == 1)
 			p = "int";
 		break;
-	/* netbsd32_sstk */
-	case 70:
-		if (ndx == 0 || ndx == 1)
-			p = "int";
-		break;
 	/* netbsd32_ommap */
 	case 71:
 		if (ndx == 0 || ndx == 1)

Index: src/sys/compat/netbsd32/syscalls.master
diff -u src/sys/compat/netbsd32/syscalls.master:1.116 src/sys/compat/netbsd32/syscalls.master:1.117
--- src/sys/compat/netbsd32/syscalls.master:1.116	Tue Dec 19 07:58:50 2017
+++ src/sys/compat/netbsd32/syscalls.master	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-	$NetBSD: syscalls.master,v 1.116 2017/12/19 07:58:50 kamil Exp $
+	$NetBSD: syscalls.master,v 1.117 2017/12/19 08:48:19 kamil Exp $
 
 ;	from: NetBSD: syscalls.master,v 1.81 1998/07/05 08:49:50 jonathan Exp
 ;	@(#)syscalls.master	8.2 (Berkeley) 1/13/94
@@ -175,7 +175,7 @@
 67	OBSOL		vread
 68	OBSOL		vwrite
 69	STD		{ int|netbsd32||sbrk(netbsd32_intptr_t incr); }
-70	STD		{ int|netbsd32||sstk(int incr); }
+70	OBSOL		sstk
 71	COMPAT_43	{ int|netbsd32||ommap(netbsd32_voidp addr, \
 			    netbsd32_size_t len, int prot, int flags, int fd, \
 			    netbsd32_long pos); }

Index: src/sys/kern/init_sysent.c
diff -u src/sys/kern/init_sysent.c:1.315 src/sys/kern/init_sysent.c:1.316
--- src/sys/kern/init_sysent.c:1.315	Wed May 10 06:19:47 2017
+++ src/sys/kern/init_sysent.c	Tue Dec 19 08:48:19 2017
@@ -1,14 +1,14 @@
-/* $NetBSD: init_sysent.c,v 1.315 2017/05/10 06:19:47 riastradh Exp $ */
+/* $NetBSD: init_sysent.c,v 1.316 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call switch table.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.286 2016/11/02 00:11:59 pgoyette Exp
+ * created from	NetBSD: syscalls.master,v 1.287 2017/12/08 01:19:29 christos Exp
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: init_sysent.c,v 1.315 2017/05/10 06:19:47 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: init_sysent.c,v 1.316 2017/12/19 08:48:19 kamil Exp $");
 
 #include "opt_modular.h"
 #include "opt_ntp.h"
@@ -426,9 +426,8 @@ struct sysent sysent[] = {
 		.sy_call = (sy_call_t *)sys_sbrk
 	},		/* 69 = sbrk */
 	{
-		ns(struct sys_sstk_args),
-		.sy_call = (sy_call_t *)sys_sstk
-	},		/* 70 = sstk */
+		.sy_call = sys_nosys,
+	},		/* 70 = filler */
 	{
 		ns(struct compat_43_sys_mmap_args),
 		.sy_flags = SYCALL_ARG_PTR,

Index: src/sys/kern/syscalls.c
diff -u src/sys/kern/syscalls.c:1.306 src/sys/kern/syscalls.c:1.307
--- src/sys/kern/syscalls.c:1.306	Fri Dec  8 01:20:52 2017
+++ src/sys/kern/syscalls.c	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: syscalls.c,v 1.306 2017/12/08 01:20:52 christos Exp $ */
+/* $NetBSD: syscalls.c,v 1.307 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call names.
@@ -8,7 +8,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: syscalls.c,v 1.306 2017/12/08 01:20:52 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: syscalls.c,v 1.307 2017/12/19 08:48:19 kamil Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_modular.h"
@@ -97,7 +97,7 @@ const char *const syscallnames[] = {
 	/*  67 */	"#67 (obsolete vread)",
 	/*  68 */	"#68 (obsolete vwrite)",
 	/*  69 */	"sbrk",
-	/*  70 */	"sstk",
+	/*  70 */	"#70 (obsolete sstk)",
 	/*  71 */	"compat_43_ommap",
 	/*  72 */	"vadvise",
 	/*  73 */	"munmap",
@@ -634,7 +634,7 @@ const char *const altsyscallnames[] = {
 	/*  67 */	NULL, /* obsolete vread */
 	/*  68 */	NULL, /* obsolete vwrite */
 	/*  69 */	NULL, /* sbrk */
-	/*  70 */	NULL, /* sstk */
+	/*  70 */	NULL, /* obsolete sstk */
 	/*  71 */	NULL, /* compat_43_ommap */
 	/*  72 */	"ovadvise",
 	/*  73 */	NULL, /* munmap */

Index: src/sys/kern/syscalls.master
diff -u src/sys/kern/syscalls.master:1.287 src/sys/kern/syscalls.master:1.288
--- src/sys/kern/syscalls.master:1.287	Fri Dec  8 01:19:29 2017
+++ src/sys/kern/syscalls.master	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-	$NetBSD: syscalls.master,v 1.287 2017/12/08 01:19:29 christos Exp $
+	$NetBSD: syscalls.master,v 1.288 2017/12/19 08:48:19 kamil Exp $
 
 ;	@(#)syscalls.master	8.2 (Berkeley) 1/13/94
 
@@ -176,7 +176,7 @@
 67	OBSOL		vread
 68	OBSOL		vwrite
 69	STD 		{ int|sys||sbrk(intptr_t incr); }
-70	STD 		{ int|sys||sstk(int incr); }
+70	OBSOL 		sstk
 71	COMPAT_43 MODULAR compat	\
 		{ int|sys||mmap(void *addr, size_t len, int prot, \
 			    int flags, int fd, long pos); } ommap

Index: src/sys/kern/systrace_args.c
diff -u src/sys/kern/systrace_args.c:1.24 src/sys/kern/systrace_args.c:1.25
--- src/sys/kern/systrace_args.c:1.24	Wed May 10 06:19:47 2017
+++ src/sys/kern/systrace_args.c	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: systrace_args.c,v 1.24 2017/05/10 06:19:47 riastradh Exp $ */
+/* $NetBSD: systrace_args.c,v 1.25 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call argument to DTrace register array converstion.
@@ -529,13 +529,6 @@ systrace_args(register_t sysnum, const v
 		*n_args = 1;
 		break;
 	}
-	/* sys_sstk */
-	case 70: {
-		const struct sys_sstk_args *p = params;
-		iarg[0] = SCARG(p, incr); /* int */
-		*n_args = 1;
-		break;
-	}
 	/* sys_mmap */
 	case 71: {
 		const struct compat_43_sys_mmap_args *p = params;
@@ -4497,16 +4490,6 @@ systrace_entry_setargdesc(int sysnum, in
 			break;
 		};
 		break;
-	/* sys_sstk */
-	case 70:
-		switch(ndx) {
-		case 0:
-			p = "int";
-			break;
-		default:
-			break;
-		};
-		break;
 	/* sys_mmap */
 	case 71:
 		switch(ndx) {
@@ -10236,11 +10219,6 @@ systrace_return_setargdesc(int sysnum, i
 		if (ndx == 0 || ndx == 1)
 			p = "int";
 		break;
-	/* sys_sstk */
-	case 70:
-		if (ndx == 0 || ndx == 1)
-			p = "int";
-		break;
 	/* sys_mmap */
 	case 71:
 		if (ndx == 0 || ndx == 1)

Index: src/sys/rump/librump/rumpkern/rump_syscalls.c
diff -u src/sys/rump/librump/rumpkern/rump_syscalls.c:1.133 src/sys/rump/librump/rumpkern/rump_syscalls.c:1.134
--- src/sys/rump/librump/rumpkern/rump_syscalls.c:1.133	Fri Dec  8 01:20:53 2017
+++ src/sys/rump/librump/rumpkern/rump_syscalls.c	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: rump_syscalls.c,v 1.133 2017/12/08 01:20:53 christos Exp $ */
+/* $NetBSD: rump_syscalls.c,v 1.134 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call vector and marshalling for rump.
@@ -15,7 +15,7 @@
 
 #ifdef __NetBSD__
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rump_syscalls.c,v 1.133 2017/12/08 01:20:53 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rump_syscalls.c,v 1.134 2017/12/19 08:48:19 kamil Exp $");
 
 #include <sys/fstypes.h>
 #include <sys/proc.h>
@@ -6780,8 +6780,9 @@ struct sysent rump_sysent[] = {
 		.sy_call = (sy_call_t *)rumpns_enosys,
 },		/* 69 = sbrk */
 	{
+		.sy_flags = SYCALL_NOSYS,
 		.sy_call = (sy_call_t *)rumpns_enosys,
-},		/* 70 = sstk */
+	},		/* 70 = filler */
 	{
 		.sy_flags = SYCALL_NOSYS,
 		.sy_call = (sy_call_t *)rumpns_sys_nomodule,

Index: src/sys/sys/syscall.h
diff -u src/sys/sys/syscall.h:1.300 src/sys/sys/syscall.h:1.301
--- src/sys/sys/syscall.h:1.300	Fri Dec  8 01:20:53 2017
+++ src/sys/sys/syscall.h	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: syscall.h,v 1.300 2017/12/08 01:20:53 christos Exp $ */
+/* $NetBSD: syscall.h,v 1.301 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call numbers.
@@ -216,9 +216,7 @@
 /* syscall: "sbrk" ret: "int" args: "intptr_t" */
 #define	SYS_sbrk	69
 
-/* syscall: "sstk" ret: "int" args: "int" */
-#define	SYS_sstk	70
-
+				/* 70 is obsolete sstk */
 /* syscall: "compat_43_ommap" ret: "int" args: "void *" "size_t" "int" "int" "int" "long" */
 #define	SYS_compat_43_ommap	71
 

Index: src/sys/sys/syscallargs.h
diff -u src/sys/sys/syscallargs.h:1.284 src/sys/sys/syscallargs.h:1.285
--- src/sys/sys/syscallargs.h:1.284	Fri Dec  8 01:20:53 2017
+++ src/sys/sys/syscallargs.h	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: syscallargs.h,v 1.284 2017/12/08 01:20:53 christos Exp $ */
+/* $NetBSD: syscallargs.h,v 1.285 2017/12/19 08:48:19 kamil Exp $ */
 
 /*
  * System call argument lists.
@@ -435,13 +435,6 @@ check_syscall_args(sys_sbrk)
 #endif /* !RUMP_CLIENT */
 
 #ifndef RUMP_CLIENT
-struct sys_sstk_args {
-	syscallarg(int) incr;
-};
-check_syscall_args(sys_sstk)
-#endif /* !RUMP_CLIENT */
-
-#ifndef RUMP_CLIENT
 struct compat_43_sys_mmap_args {
 	syscallarg(void *) addr;
 	syscallarg(size_t) len;
@@ -3300,8 +3293,6 @@ int	sys_vfork(struct lwp *, const void *
 
 int	sys_sbrk(struct lwp *, const struct sys_sbrk_args *, register_t *);
 
-int	sys_sstk(struct lwp *, const struct sys_sstk_args *, register_t *);
-
 int	compat_43_sys_mmap(struct lwp *, const struct compat_43_sys_mmap_args *, register_t *);
 
 int	sys_ovadvise(struct lwp *, const struct sys_ovadvise_args *, register_t *);

Index: src/sys/uvm/uvm_mmap.c
diff -u src/sys/uvm/uvm_mmap.c:1.167 src/sys/uvm/uvm_mmap.c:1.168
--- src/sys/uvm/uvm_mmap.c:1.167	Fri Oct 27 12:01:08 2017
+++ src/sys/uvm/uvm_mmap.c	Tue Dec 19 08:48:19 2017
@@ -1,4 +1,4 @@
-/*	$NetBSD: uvm_mmap.c,v 1.167 2017/10/27 12:01:08 utkarsh009 Exp $	*/
+/*	$NetBSD: uvm_mmap.c,v 1.168 2017/12/19 08:48:19 kamil Exp $	*/
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -46,7 +46,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_mmap.c,v 1.167 2017/10/27 12:01:08 utkarsh009 Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_mmap.c,v 1.168 2017/12/19 08:48:19 kamil Exp $");
 
 #include "opt_compat_netbsd.h"
 #include "opt_pax.h"
@@ -108,21 +108,6 @@ sys_sbrk(struct lwp *l, const struct sys
 }
 
 /*
- * sys_sstk: sstk system call.
- */
-
-/* ARGSUSED */
-int
-sys_sstk(struct lwp *l, const struct sys_sstk_args *uap, register_t *retval)
-{
-	/* {
-		syscallarg(int) incr;
-	} */
-
-	return ENOSYS;
-}
-
-/*
  * sys_mincore: determine if pages are in core or not.
  */
 

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