compilation problems with ecj.jar

Mon Jan 15 18:08:00 GMT 2007

Andrew Haley wrote:
> Marco Trudel writes:
> > Andrew Haley wrote:
> > > Marco Trudel writes:
> > > 
> > > > I get this error while compiling the current GCJ trunk:
> > > > 
> > > > org/eclipse/jdt/core/compiler/CharOperation.java: In class 
> > > > 'org.eclipse.jdt.core.compiler.CharOperation':
> > > > org/eclipse/jdt/core/compiler/CharOperation.java: In method 
> > > > 'org.eclipse.jdt.core.compiler.CharOperation.<clinit>()':
> > > > org/eclipse/jdt/core/compiler/CharOperation.java:0: internal compiler 
> > > > error: Segmentation fault
> > > > 
> > > > This is a class from the ecj.jar I downloaded. Is that ecj.jar work in 
> > > > progress? Should I update it frequently? Does it work for others?
> > > > 
> > > > I configure with:
> > > > configure --prefix=/home/Marco/Desktop/compile-lin-lin/gcc-XYZXYZ-lin 
> > > > --build=`/usr/local/src/gcc/config.guess` --host=i686-pc-linux-gnu 
> > > > --target=i686-pc-linux-gnu --enable-languages=c,c++,java --enable-libgcj 
> > > > --with-gnu-as --with-gnu-ld --disable-nls --disable-debug 
> > > > --disable-shared --disable-checking --enable-threads=posix 
> > > > --disable-win32-registry 
> > > > --with-gmp=/home/Marco/Desktop/compile-lin-lin/gmp-out 
> > > > --with-mpfr=/home/Marco/Desktop/compile-lin-lin/mpfr-out
> > > 
> > > Please tell us exactly what command is being executed when you get
> > > this error.
> > 
> > Sorry, I intended to minimize the output but of course I cut too much 
> > away. Here you go with the whole one:
>> Something to do with --disable-shared, I suspect. The build is
> statically compiling ecj1; dynamic builds don't do that, interpreting
> instead.

But this is intended this way and ok?
> Nevertheless, this command does work for me, producing ecjx. It needs
> a lot of memory to compile, though. Perhaps you're running out of
> memory.

Yes, I think you're right. I tried a couple of times and sometimes got 
"virtual memory exhausted: Cannot allocate memory", even if I removed 
optimization. How much RAM do you have? I have 1gb RAM and 2gb swap. I'm 
somewhat surprised that that's not enough or at least not enough without 
optimization...
thanks
Marco