code review 3759042: runtime: windows/amd64 port

src/pkg/runtime/mkasmh.sh

 #!/bin/sh
 # Copyright 2009 The Go Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style
 # license that can be found in the LICENSE file.
 
 set -e
 
 cat <<'EOF'
 // Assembly constants.
 // AUTOMATICALLY GENERATED BY mkasmh.sh DURING BUILD
 
 EOF
 
 case "$GOARCH" in
 386)
         # The offsets 0 and 4 are also known to:
-        #       nacl/thread.c:/^newosproc
         #       ../../cmd/8l/pass.c:/D_GS
         #       ../../libcgo/linux_386.c:/^threadentry
         #       ../../libcgo/darwin_386.c:/^threadentry
         case "$GOOS" in
         windows)
                 echo '#define   get_tls(r)      MOVL 0x2c(FS), r'
                 echo '#define   g(r)    0(r)'
                 echo '#define   m(r)    4(r)'
                 ;;
         plan9)
-                echo '#define   get_tls(r)'
-                echo '#define   g(r)    0xdfffefc0'
-                echo '#define   m(r)    0xdfffefc4'
+                echo '#define   get_tls(r)      MOVL _tos(SB), r '
+                echo '#define   g(r)    -8(r)'
+                echo '#define   m(r)    -4(r)'
                 ;;
         linux)
                 # On Linux systems, what we call 0(GS) and 4(GS) for g and m
                 # turn into %gs:-8 and %gs:-4 (using gcc syntax to denote
                 # what the machine sees as opposed to 8l input).
                 # 8l rewrites 0(GS) and 4(GS) into these.
                 #
                 # On Linux Xen, it is not allowed to use %gs:-8 and %gs:-4
                 # directly.  Instead, we have to store %gs:0 into a temporary
                 # register and then use -8(%reg) and -4(%reg).  This kind
@@ skipping 45 matching lines @@
         echo '#define   LR      R14'
         ;;
 *)
         echo 'unknown $GOARCH: '$GOARCH 1>&2
         exit 1
         ;;
 esac
 echo
 
 awk '
+{ gsub(/\r/, ""); }
 /^aggr G$/ { aggr="g" }
 /^aggr M$/ { aggr = "m" }
 /^aggr Gobuf$/ { aggr = "gobuf" }
 /^}/ { aggr = "" }
 
 #       Gobuf 24 sched;
 #       'Y' 48 stack0;
 #       'Y' 56 entry;
 #       'A' G 64 alllink;
 aggr != "" && /^        / {
         name=$NF;
         sub(/;/, "", name);
         offset=$(NF-1);
         printf("#define %s_%s %s\n", aggr, name, offset);
 }
 ' runtime.acid.$GOARCH