[src/netbsd-1-5]: src/sys/kern Pull up revision 1.46 (via patch, requested by...

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

details:   https://anonhg.NetBSD.org/src/rev/c592bfbde599
branches:  netbsd-1-5
changeset: 491460:c592bfbde599
user:      he <he%NetBSD.org@localhost>
date:      Tue May 01 08:53:00 2001 +0000

description:
Pull up revision 1.46 (via patch, requested by jdolecek):
  Make it possible to use a different function for unimplemented
  syscalls than sys_nosys(), so that the Linux emulation can avoid
  posting SIGSYS and instead just return ENOSYS.

diffstat:

 sys/kern/makesyscalls.sh |  22 +++++++++++++---------
 1 files changed, 13 insertions(+), 9 deletions(-)

diffs (75 lines):

diff -r aff063ef5ec5 -r c592bfbde599 sys/kern/makesyscalls.sh
--- a/sys/kern/makesyscalls.sh  Sat Apr 28 07:05:58 2001 +0000
+++ b/sys/kern/makesyscalls.sh  Tue May 01 08:53:00 2001 +0000
@@ -1,5 +1,5 @@
 #! /bin/sh -
-#      $NetBSD: makesyscalls.sh,v 1.35 1999/08/20 19:07:31 thorpej Exp $
+#      $NetBSD: makesyscalls.sh,v 1.35.12.1 2001/05/01 08:53:00 he Exp $
 #
 # Copyright (c) 1994,1996 Christopher G. Demetriou
 # All rights reserved.
@@ -41,9 +41,6 @@
        ;;
 esac
 
-# source the config file.
-. ./$1
-
 # the config file sets the following variables:
 #      sysnames        the syscall names file
 #      sysnumhdr       the syscall numbers file
@@ -54,9 +51,15 @@
 #      namesname       the name for the 'char *[]' we define
 #      constprefix     the prefix for the system call constants
 #      registertype    the type for register_t
+#      sys_nosys       [optional] name of function called for unsupported
+#                      syscalls, if not sys_nosys()
 #
 # NOTE THAT THIS makesyscalls.sh DOES NOT SUPPORT 'LIBCOMPAT'.
 
+# source the config file.
+sys_nosys="sys_nosys"  # default is sys_nosys(), if not specified otherwise
+. ./$1
+
 # tmp files:
 sysdcl="sysent.dcl"
 sysprotos="sys.protos"
@@ -129,6 +132,7 @@
        syscompat_pref = \"$syscompat_pref\"
        sysent = \"$sysent\"
        sysnamesbottom = \"$sysnamesbottom\"
+       sys_nosys = \"$sys_nosys\"
        infile = \"$2\"
 
        compatopts = \"$compatopts\"
@@ -146,7 +150,7 @@
                printf "#define %s(func) __CONCAT(%s_,func)\n", compat[i], \
                    compat[i] > sysent
                printf "#else\n" > sysent
-               printf "#define %s(func) sys_nosys\n", compat[i] > sysent
+               printf "#define %s(func) %s\n", compat[i], sys_nosys > sysent
                printf "#endif\n" > sysent
        }
 
@@ -367,8 +371,8 @@
 
        # output syscall switch entry
        if (nodefs == "INDIR") {
-               printf("\t{ 0, 0,\n\t    sys_nosys },\t\t\t/* %d = %s (indir) */\n", \
-                   syscall, funcalias) > sysent
+               printf("\t{ 0, 0,\n\t    %s },\t\t\t/* %d = %s (indir) */\n", \
+                   sys_nosys, syscall, funcalias) > sysent
        } else {
 #              printf("\t{ { %d", argc) > sysent
 #              for (i = 1; i <= argc; i++) {
@@ -466,8 +470,8 @@
        for (i = 3; i <= NF; i++)
                comment=comment " " $i
 
-       printf("\t{ 0, 0,\n\t    sys_nosys },\t\t\t/* %d = %s */\n", \
-           syscall, comment) > sysent
+       printf("\t{ 0, 0,\n\t    %s },\t\t\t/* %d = %s */\n", \
+          sys_nosys, syscall, comment) > sysent
        printf("\t\"#%d (%s)\",\t\t/* %d = %s */\n", \
            syscall, comment, syscall, comment) > sysnamesbottom
        if ($2 != "UNIMPL")