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[src/trunk]: src/sys Drop the sstk(2) syscall stub



details:   https://anonhg.NetBSD.org/src/rev/9a7e78526f74
branches:  trunk
changeset: 358260:9a7e78526f74
user:      kamil <kamil%NetBSD.org@localhost>
date:      Tue Dec 19 08:48:19 2017 +0000

description:
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>

diffstat:

 sys/compat/netbsd32/netbsd32_netbsd.c        |  16 ++--------------
 sys/compat/netbsd32/netbsd32_syscall.h       |   8 +++-----
 sys/compat/netbsd32/netbsd32_syscallargs.h   |  11 ++---------
 sys/compat/netbsd32/netbsd32_syscalls.c      |  10 +++++-----
 sys/compat/netbsd32/netbsd32_sysent.c        |  11 +++++------
 sys/compat/netbsd32/netbsd32_systrace_args.c |  24 +-----------------------
 sys/compat/netbsd32/syscalls.master          |   4 ++--
 sys/kern/init_sysent.c                       |  11 +++++------
 sys/kern/syscalls.c                          |   8 ++++----
 sys/kern/syscalls.master                     |   4 ++--
 sys/kern/systrace_args.c                     |  24 +-----------------------
 sys/rump/librump/rumpkern/rump_syscalls.c    |   9 +++++----
 sys/sys/syscall.h                            |   6 ++----
 sys/sys/syscallargs.h                        |  11 +----------
 sys/uvm/uvm_mmap.c                           |  19 ++-----------------
 15 files changed, 42 insertions(+), 134 deletions(-)

diffs (truncated from 504 to 300 lines):

diff -r 29276815c0ce -r 9a7e78526f74 sys/compat/netbsd32/netbsd32_netbsd.c
--- a/sys/compat/netbsd32/netbsd32_netbsd.c     Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/compat/netbsd32/netbsd32_netbsd.c     Tue Dec 19 08:48:19 2017 +0000
@@ -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 @@
 }
 
 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)
 {
        /* {
diff -r 29276815c0ce -r 9a7e78526f74 sys/compat/netbsd32/netbsd32_syscall.h
--- a/sys/compat/netbsd32/netbsd32_syscall.h    Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/compat/netbsd32/netbsd32_syscall.h    Tue Dec 19 08:48:19 2017 +0000
@@ -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
 
diff -r 29276815c0ce -r 9a7e78526f74 sys/compat/netbsd32/netbsd32_syscallargs.h
--- a/sys/compat/netbsd32/netbsd32_syscallargs.h        Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/compat/netbsd32/netbsd32_syscallargs.h        Tue Dec 19 08:48:19 2017 +0000
@@ -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 @@
 };
 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    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 *);
diff -r 29276815c0ce -r 9a7e78526f74 sys/compat/netbsd32/netbsd32_syscalls.c
--- a/sys/compat/netbsd32/netbsd32_syscalls.c   Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/compat/netbsd32/netbsd32_syscalls.c   Tue Dec 19 08:48:19 2017 +0000
@@ -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 @@
        /*  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 @@
        /*  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",
diff -r 29276815c0ce -r 9a7e78526f74 sys/compat/netbsd32/netbsd32_sysent.c
--- a/sys/compat/netbsd32/netbsd32_sysent.c     Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/compat/netbsd32/netbsd32_sysent.c     Tue Dec 19 08:48:19 2017 +0000
@@ -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 @@
                .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)
diff -r 29276815c0ce -r 9a7e78526f74 sys/compat/netbsd32/netbsd32_systrace_args.c
--- a/sys/compat/netbsd32/netbsd32_systrace_args.c      Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/compat/netbsd32/netbsd32_systrace_args.c      Tue Dec 19 08:48:19 2017 +0000
@@ -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 @@
                *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 @@
                        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 @@
                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)
diff -r 29276815c0ce -r 9a7e78526f74 sys/compat/netbsd32/syscalls.master
--- a/sys/compat/netbsd32/syscalls.master       Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/compat/netbsd32/syscalls.master       Tue Dec 19 08:48:19 2017 +0000
@@ -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); }
diff -r 29276815c0ce -r 9a7e78526f74 sys/kern/init_sysent.c
--- a/sys/kern/init_sysent.c    Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/kern/init_sysent.c    Tue Dec 19 08:48:19 2017 +0000
@@ -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 @@
                .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,
diff -r 29276815c0ce -r 9a7e78526f74 sys/kern/syscalls.c
--- a/sys/kern/syscalls.c       Tue Dec 19 08:27:05 2017 +0000
+++ b/sys/kern/syscalls.c       Tue Dec 19 08:48:19 2017 +0000
@@ -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 @@
        /*  67 */       "#67 (obsolete vread)",
        /*  68 */       "#68 (obsolete vwrite)",
        /*  69 */       "sbrk",
-       /*  70 */       "sstk",
+       /*  70 */       "#70 (obsolete sstk)",



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