/**************************************************************************** * Copyright (c) 1998,2006 Free Software Foundation, Inc. * * * * 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, distribute with modifications, 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 ABOVE 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. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /* * $Id: makedef.cmd,v 1.5 2006/04/22 23:14:50 tom Exp $ * * Author: Juan Jose Garcia Ripoll . * Webpage: http://www.arrakis.es/~worm/ * * makedef.cmd - update a DLL export list using a newly created library file * in a.out format, plus an old .DEF file. * * standard output gets a sorted list with all entrypoints with entrycodes. * This list, plus a few .def sentences (LIBRARY, DESCRIPTION and EXPORT) * is used to build a new .def file. * * `_nc_*' symbols are ignored. * * returns 1 when the old def_file is corrupted -- that is, export items are * not properly formatted. * * returns 0 if everything went OK. */ parse arg lib_file def_file lib_file = translate(lib_file,'\','/') def_file = translate(def_file,'\','/') call CleanQueue /* * `codes' is the stem that links a code to every symbol * `names' is the stem where symbols are stored sequentially * `last' is the index of the last symbol defined */ last = 0 used. = 0 codes. = 0 names. = '' tmp_name = 'foo.tmp' /* * This sed expression cleans empty lines, comments and special .DEF * commands, such as LIBRARY..., EXPORTS..., etc */ tidy_up = '"/^[A-Z]/d;s/[ ][ ]*/ /g;s/;.*$//g;s/^[ ]*//g;/^[ ]*$/d"' /* * First we find all public symbols (functions and variables). Next we * concatenate this list with the old one, sorting it and wiping out * all unused data (comments, DLL directives, blanks, etc). All this * information is pushed into a REXX private list with the RXQUEUE * utility program. */ '@echo off' 'emxexp -u' lib_file '>' tmp_name 'cat' tmp_name def_file '| sed' tidy_up '| sort > foo2.tmp' 'type foo2.tmp | rxqueue' 'del' tmp_name '1>NUL' /* * This loop runs over the queue items */ do while queued() > 0 /* * We retrieve the symbol name (NEW_NAME) and its number (NEW_NUMBER) * When the line comes from `emximp's output, there's no number, so * we assign it the special value 0. */ parse pull new_symbol '@'new_code rest if Left(new_symbol,1) = '"' then parse var new_symbol '"' new_name '"' rest else do echo 'Symbol 'new_symbol' was not quoted' new_name = new_symbol end if new_code = '' then new_code = 0 /* * Here, one would place all smart checks that would kill unused symbols. * However, export tables are not that big, so why bothering? if Left(new_name,4) = '_nc_' then iterate */ /* * The algorithm: * IF (this is the 2nd time the symbol appears) THEN * (this symbol comes from a .DEF file) * it has a valid code that we store * we mark that code as used * ELIF (it has no number) THEN * (it's a new symbol) * we increase the counter of defined symbols * we assign it the special number 0 * (later on it'll be assigned an unused export code) * ELSE * this symbol was in the old DLL and it's no longer * here, so we skip it. */ select when new_name = '' then 'echo Warning: empty symbol found 1>&2' when names.last = new_name then do codes.last = new_code used.new_code = 1 end when new_code = 0 then do last = last + 1 names.last = new_name codes.last = 0 end otherwise 'echo Warning: symbol "'new_name'" has disappeared 1>&2' end /* select */ end /* do while queued() */ /* * Finally we scan the stem, writing out all symbols with export codes. * Those that did not have a valid one (just 0) are assigned a new one. */ new_code = 1 inx = 1 do while inx <= last if codes.inx = 0 then do do while used.new_code \= 0 new_code = new_code + 1 end codes.inx = new_code used.new_code = 1 end say ' "'names.inx'" @'codes.inx' NONAME' inx = inx + 1 end 'del foo2.tmp 1>NUL' exit 0 /* * Cleans the REXX queue by pulling and forgetting every line. * This is needed, at least, when `makedef.cmd' starts, because an aborted * REXX program might have left some rubbish in. */ CleanQueue: procedure do while queued() > 0 parse pull foo end return