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Re: Symbol in DLL begin with _
- To: "'cygwin at cygwin dot com'" <cygwin at cygwin dot com>
- Subject: Re: Symbol in DLL begin with _
- From: "Pasch, Thomas (ACTGRO)" <extern dot thomas dot pasch at volkswagen dot de>
- Date: 2001年7月31日 12:37:36 +0200
Hm,
I've managed it now. Documentation and the FAQ is a little unclear to me
(and not up to date either). Here's a bash script to do the job (for JNI
only,
comment out the grep stuff for the more general case.
Kind regards,
Thomas
-----------------------------------
#!/bin/bash
# mkdll.sh LIBNAME OBJECTFILES
# LIBNAME: without extensions
# OBJECTFILES: *.o (with extensions)
if test $# -lt 2; then
echo "usage: mkdll.sh LIBNAME OBJECTS*"
exit -1
fi
# additional libs to link with: here we are doing C++ stuff
export LIBS=-lstdc++
export LIBNAME=1ドル
shift
# based on a tip of Dmitry Timoshkov
# zero, remove old dll
rm $LIBNAME.a $LIBNAME.dll $LIBNAME.def $LIBNAME.tmp 2>/dev/null
# first, get a EXPORT list
dlltool --add-stdcall-alias --export-all-symbols --output-def $LIBNAME.tmp
$*
# (JNI only): second, only let the 'Java_' symbols in
echo EXPORTS >$LIBNAME.def
grep "Java_" $LIBNAME.tmp >>$LIBNAME.def
# third, create the .dll
dllwrap -o $LIBNAME.dll $* $LIBS -k --def $LIBNAME.def \
-Wl,--kill-at,--enable-stdcall-fixup
# forth, reorganize the .a lib
dlltool --kill-at --input-def $LIBNAME.def --output-lib lib$LIBNAME.a
# fifth, echo something helpful about the dependencies of the dll
cygcheck -rv $LIBNAME.dll
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