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* ltmain.in (impgen.c): Added a new embedded C file that can be

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used under win32 to extract a def file (symbol export list) from a
dll that has none.  Code to use it might need to wait for the ILD
merge before it will be useful...
This commit is contained in:
Gary V. Vaughan 1999-02-18 14:46:46 +00:00
parent b115c9bdfe
commit 918d2d10d7
2 changed files with 144 additions and 5 deletions
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17
ChangeLog
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@ -1,3 +1,10 @@
1999-02-18 Gary V. Vaughan <gvaughan@oranda.demon.co.uk>
* ltmain.in (impgen.c): Added a new embedded C file that can be
used under win32 to extract a def file (symbol export list) from a
dll that has none. Code to use it might need to wait for the ILD
merge before it will be useful...
1999-02-18 Thomas Tanner <tanner@gmx.de>
* TODO: updated
@ -411,7 +418,7 @@
anything about the format of the date, just that it does not
contain `$'
1999-01-22 Gary V. Vaughan <garyv@oranda.demon.co.uk>
1999-01-22 Gary V. Vaughan <gvaughan@oranda.demon.co.uk>
* configure.in (date): echo the version number during
configuration, and show $date for cvs versions.
@ -467,7 +474,7 @@
* demo/configure.in, demo/Makefile.am (DLPREOPEN): reverted; it
didn't make any difference.
1999-01-21 Gary V. Vaughan <garyv@oranda.demon.co.uk>
1999-01-21 Gary V. Vaughan <gvaughan@oranda.demon.co.uk>
* THANKS: Added Chris Laas <golem@MIT.EDU>
@ -811,7 +818,7 @@
* mdemo/Makefile.am: use -export-dynamic until libtool
and libltdl are able to handle module dependencies
1999-01-14 Gary V. Vaughan <garyv@oranda.demon.co.uk>
1999-01-14 Gary V. Vaughan <gvaughan@oranda.demon.co.uk>
* THANKS: added Mark Elbrecht.
* ltconfig.in (PATH_SEPARATOR): new variable to hold valid $PATH
@ -1653,7 +1660,7 @@
* mdemo/modules/Makefile.am: replaced -export-symbols with
-export-dynamic since it doesn't work for modules
1998-12-01 Gary V. Vaughan <garyv@oranda.demon.co.uk>
1998-12-01 Gary V. Vaughan <gvaughan@oranda.demon.co.uk>
* README: Updated homepage pointer to gnu libtool page.
@ -1676,7 +1683,7 @@
* config.guess, config.sub: imported from autoconf pre-2.13
1998-11-27 Gary V. Vaughan <garyv@oranda.demon.co.uk>
1998-11-27 Gary V. Vaughan <gvaughan@oranda.demon.co.uk>
* libtool (AM_PROG_LD): Oops... we need to know the host_os for
the changes below. I'm not sure whether mingw32 and os2 support

132
ltmain.in
View File

@ -643,6 +643,138 @@ compiler."
# return TRUE;
# }
# /* ltdll.c ends here */
# This is a source program that is used to create import libraries
# on Windows for dlls which lack them. Don't remove nor modify the
# starting and closing comments
# /* impgen.c starts here */
# /* Copyright (C) 1999 Free Software Foundation, Inc.
#
# This file is part of GNU libtool.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# */
#
# #include <stdio.h> /* for printf() */
# #include <unistd.h> /* for open(), lseek(), read() */
# #include <fcntl.h> /* for O_RDONLY, O_BINARY */
# #include <string.h> /* for strdup() */
#
# static unsigned int
# pe_get16 (fd, offset)
# int fd;
# int offset;
# {
# unsigned char b[2];
# lseek (fd, offset, SEEK_SET);
# read (fd, b, 2);
# return b[0] + (b[1]<<8);
# }
#
# static unsigned int
# pe_get32 (fd, offset)
# int fd;
# int offset;
# {
# unsigned char b[4];
# lseek (fd, offset, SEEK_SET);
# read (fd, b, 4);
# return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24);
# }
#
# static unsigned int
# pe_as32 (ptr)
# void *ptr;
# {
# unsigned char *b = ptr;
# return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24);
# }
#
# int
# main (argc, argv)
# int argc;
# char *argv[];
# {
# int dll;
# unsigned long pe_header_offset, opthdr_ofs, num_entries, i;
# unsigned long export_rva, export_size, nsections, secptr, expptr;
# unsigned long name_rvas, nexp;
# unsigned char *expdata, *erva;
# char *filename, *dll_name;
#
# filename = argv[1];
#
# dll = open(filename, O_RDONLY|O_BINARY);
# if (!dll)
# return 1;
#
# dll_name = filename;
#
# for (i=0; filename[i]; i++)
# if (filename[i] == '/' || filename[i] == '\\' || filename[i] == ':')
# dll_name = filename + i +1;
#
# pe_header_offset = pe_get32 (dll, 0x3c);
# opthdr_ofs = pe_header_offset + 4 + 20;
# num_entries = pe_get32 (dll, opthdr_ofs + 92);
#
# if (num_entries < 1) /* no exports */
# return 1;
#
# export_rva = pe_get32 (dll, opthdr_ofs + 96);
# export_size = pe_get32 (dll, opthdr_ofs + 100);
# nsections = pe_get16 (dll, pe_header_offset + 4 +2);
# secptr = (pe_header_offset + 4 + 20 +
# pe_get16 (dll, pe_header_offset + 4 + 16));
#
# expptr = 0;
# for (i = 0; i < nsections; i++)
# {
# char sname[8];
# unsigned long secptr1 = secptr + 40 * i;
# unsigned long vaddr = pe_get32 (dll, secptr1 + 12);
# unsigned long vsize = pe_get32 (dll, secptr1 + 16);
# unsigned long fptr = pe_get32 (dll, secptr1 + 20);
# lseek(dll, secptr1, SEEK_SET);
# read(dll, sname, 8);
# if (vaddr <= export_rva && vaddr+vsize > export_rva)
# {
# expptr = fptr + (export_rva - vaddr);
# if (export_rva + export_size > vaddr + vsize)
# export_size = vsize - (export_rva - vaddr);
# break;
# }
# }
#
# expdata = (unsigned char*)malloc(export_size);
# lseek (dll, expptr, SEEK_SET);
# read (dll, expdata, export_size);
# erva = expdata - export_rva;
#
# nexp = pe_as32 (expdata+24);
# name_rvas = pe_as32 (expdata+32);
#
# printf ("EXPORTS\n");
# for (i = 0; i<nexp; i++)
# {
# unsigned long name_rva = pe_as32 (erva+name_rvas+i*4);
# printf ("\t%s @ %ld ;\n", erva+name_rva, 1+ i);
# }
#
# return 0;
# }
# /* impgen.c ends here */
;;
*)
allow_undefined=yes