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|
#!/usr/bin/awk -f
#
# Rewrite the interpreter source in $1 to use GNU C extensions, writing the
# modified file to stdout.
#
# Author: Ian.Piumarta@INRIA.Fr
#
# Last edited: 2009-09-17 08:34:23 by piumarta on ubuntu.piumarta.com
# Copyright (C) 1996-2004 by Ian Piumarta and other authors/contributors
# listed elsewhere in this file.
# All rights reserved.
#
# This file is part of Unix Squeak.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
BEGIN {
print "/* This file has been post-processed for GNU C */\n\n";
# print "copying first section of file" > "/dev/stderr";
stage= 0;
}
/#include "sq.h"/ {
print "#include \"sqGnu.h\"\n";
next;
}
# An inlining comment means the interpreter was not inlined
/inline\: true/ {
# print NR, $0 > "/dev/stderr";
# print "" > "/dev/stderr";
# print "*** interpreter was not inlined: bailing out! ***" > "/dev/stderr";
# print "" > "/dev/stderr";
stage= -1;
}
(stage == 0) && /^int interpret\(void\) \{/ {
# print "interpret: adding static register assignments" > "/dev/stderr";
stage= 1;
print;
next;
}
(stage == 0) && /^sqInt interpret\(void\) \{/ {
# print "interpret: adding static register assignments" > "/dev/stderr";
stage= 1;
print;
next;
}
(stage == 1) && /^ char\* localIP;/ {
print " register char* localIP IP_REG;";
next;
}
(stage == 1) && /^register struct foo \* foo = &fum;/ {
print " register struct foo * foo GP_REG= &fum;";
next;
}
(stage == 1) && /^ char\* localSP;/ {
print " register char* localSP SP_REG;";
next;
}
(stage == 1) && /^ int currentBytecode;/ {
print " register int currentBytecode CB_REG;";
next;
}
(stage == 1) && /^ sqInt currentBytecode;/ {
print " register int currentBytecode CB_REG;";
next;
}
(stage == 1) && /^$/ {
# print "interpret: adding bytecode dispatch table" > "/dev/stderr";
print " JUMP_TABLE;\n";
# print "interpret: rewriting case labels and outer breaks" > "/dev/stderr";
stage= 2;
FS=" ";
# FS="[ :]+";
next;
}
(stage == 2) && /^ case / {
print " CASE(" (($NF) + 0) ")";
# print " CASE(" $3 ")";
next;
}
(stage == 2) && /^ break;/ {
print " BREAK;";
next;
}
(stage == 2) && /^\}/ {
stage= -1;
print;
next;
}
(stage == 3) && /^int primitiveResponse\(/ {
print;
# print "primitiveResponse: adding primitive dispatch table" > "/dev/stderr";
print " PRIM_TABLE;\n";
# print "primitiveResponse: rewriting case labels" > "/dev/stderr";
stage= 4;
FS=" ";
# FS="[ :]+";
next;
}
(stage == 3) && /^sqInt primitiveResponse\(/ {
print;
# print "primitiveResponse: adding primitive dispatch table" > "/dev/stderr";
print " PRIM_TABLE;\n";
# print "primitiveResponse: rewriting case labels" > "/dev/stderr";
stage= 4;
FS=" ";
# FS="[ :]+";
next;
}
(stage == 4) && /^ switch \(primitiveIndex\) \{/ {
# print "primitiveResponse: adding primitive dispatch" > "/dev/stderr";
print " PRIM_DISPATCH;";
print;
next;
}
(stage == 4) && /^ switch \(foo->primitiveIndex\) \{/ {
# print "primitiveResponse: adding primitive dispatch" > "/dev/stderr";
print " PRIM_DISPATCH;";
print;
next;
}
(stage == 4) && /^ case / {
print " CASE(" (($NF) + 0) ")";
# print " CASE(" $3 ")";
next;
}
(stage == 4) && /^\}/ {
# print "copying last section of file" > "/dev/stderr";
stage= -1;
FS=" ";
print;
next;
}
# default
{
print;
next;
}
END {
if (stage != -1) {
print "#error GNUIFICATION FAILED (", stage, ")"
}
}
|
