X-Recipient:	archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status:	No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,TW_UU,T_RP_MATCHES_RCVD
X-Spam-Check-By:	sourceware.org
To:	cygwin AT cygwin DOT com
From:	Hans Horn <hannes AT 2horns DOT com>
Subject:	64bit (g)fortran JNI
Date:	Tue, 12 Apr 2011 07:38:06 -0700
Lines:	32
Message-ID:	<io1o4k$euu$1@dough.gmane.org>
Mime-Version:	1.0
User-Agent:	Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9
X-IsSubscribed:	yes
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com

Folks,

has anybody got any experience interfacing (g)fortran routines with Java 
via JNI?

I'm on 64bit Windows7 using cygwin
x86_64-w64-mingw32-gcc and x86_64-w64-mingw32-gfortran, both v4.5.2

Java: jdk-6u24-windows-x64

Even though I can statically link the JNI code successfully (using 
gfortran as linker), calling any native method from Java crashes the JVM 
- even when no fortran code is called at all.

my compiler/linker flags are:

gcc_opt = -O3 -std=c99 -DCYGWIN -Wl,--kill-at -mno-cygwin -shared 
-I${JAVA_HOME}/include/win32 -m64

gfc_opt = -O3 -fno-underscoring -fno-f2c -W -Wunused -Wuninitialized -m64

ld_opt = -luuid -lole32 -m64


Any clues?

Thx.,
H.


P.S. I'd posted this on the gfortran list, but the chaps there were too 
busy.


--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -