java/5088: Can't create a java.lang.Object from CNI

bryce@waitaki.otago.ac.nz bryce@waitaki.otago.ac.nz
Tue Nov 13 15:10:00 GMT 2001


>Number:         5088
>Category:       java
>Synopsis:       Can't create a java.lang.Object from CNI
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Dec 11 22:46:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Bryce
>Release:        gcc version 3.1 20011207 (experimental)
>Organization:
>Environment:

>Description:
The test case below does not link.

$ gcc InvokeCNI.cc -lgcj
/tmp/ccoD0wXw.o: In function `main':
/tmp/ccoD0wXw.o(.text+0x48): undefined reference to `java::lang::Object::Object()'
collect2: ld returned 1 exit status

$ nm InvokeCNI.o | grep ObjectC 
         U _ZN4java4lang6ObjectC1Ev

$ nm ~/cvs/gcc/build/i686-pc-linux-gnu/libjava/java/lang/Object.o | grep ObjectC
00000030 T _ZN4java4lang6ObjectC2Ev

According to the C++ ABI spec:

<ctor-dtor-name> ::= C1	# complete object (in-charge) constructor
		   ::= C2	# base object (not-in-charge) constructor

>How-To-Repeat:
#include <gcj/cni.h>
#include <java/lang/Object.h>

int main(int argc, char *argv)
{
  using namespace java::lang;
  
  _Jv_CreateJavaVM (NULL);
  _Jv_AttachCurrentThread (NULL, NULL);
  
  new java::lang::Object ();
}

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:



More information about the Java-prs mailing list