Re: Failure to build libjava on 512MB machine

[Marco Trudel <mtrudel at gmx dot ch>]

Andrew Haley wrote:
> Gerald Pfeifer writes:
>  > I can no longer build libjava on a machine with "just" 512MB of main 
>  > memory (FreeBSD/i386 5.4 in this case).
>  > 
>  > Three weeks ago the build worked on that very machine; did we raise
>  > our minimum requirements
>
> We just imported a whole new release of the Classpath library, and
> it's big.  But that doesn't explain this bug.

You mean 0.93, right?

>  > or is this simply a bug?
>
> I think so.  javax/swing/text/html/parser is quite small:
>
>  $ /usr/bin/time make javax/swing/text/html/parser.lo 

What? No way! I always thought this must be something about 7gb or so.
Compiling my canadian cross mingw takes 2h. 40min to 50min is spend for 
compiling html/parser...
I think a linux normal build (static, 32bit) also needs about 2h. A 
cross host=mingw target=linux took only 50min to my surprise.

> 0.53user 0.16system 0:00.74elapsed 93%CPU (0avgtext+0avgdata 0maxresident)k
> 0inputs+0outputs (0major+26369minor)pagefaults 0swaps
>
>  $ ls -lh javax/swing/text/html/.libs/parser.o 
> -rw-r--r-- 1 aph aph 260K Jan 30 11:44 javax/swing/text/html/.libs/parser.o
>
> I don't know why it is using so much memory in your case.

I assume is has something to do with optimization.
- I noticed myself that I can't compile some jars on mingw (Waited an 
hour) while it just took a few minutes on Linux (cross to mingw)
- A user of my builds reported also out of memory exceptions with recent 
gcc builds when optimization is used
- someone made a java or libjava bugreport about that


Marco

>  > Gerald
>  > 
>  > echo /sw/test/GCC/trunk/libjava/classpath/lib/gnu/javax/swing/text/html/parser/*.class > gnu/javax/swing/text/html/parser.list
>  > /bin/sh ./libtool --mode=compile /files/pfeifer/OBJ-0129-2308/gcc/gcj -B/files/pfeifer/OBJ-0129-2308/i386-unknown-freebsd5.4/libjava/ -B/files/pfeifer/OBJ-0129-2308/gcc/ -ffloat-store -fomit-frame-pointer -fclasspath= -fbootclasspath=/sw/test/GCC/trunk/libjava/classpath/lib --encoding=UTF-8 -Wno-deprecated -fbootstrap-classes -g -O2 -c -o gnu/javax/swing/text/html/parser.lo -fsource-filename=/files/pfeifer/OBJ-0129-2308/i386-unknown-freebsd5.4/libjava/classpath/lib/classes -MT gnu/javax/swing/text/html/parser.lo -MD -MP -MF gnu/javax/swing/text/html/parser.deps @gnu/javax/swing/text/html/parser.list
>  > /files/pfeifer/OBJ-0129-2308/gcc/gcj -B/files/pfeifer/OBJ-0129-2308/i386-unknown-freebsd5.4/libjava/ -B/files/pfeifer/OBJ-0129-2308/gcc/ -ffloat-store -fomit-frame-pointer -fclasspath= -fbootclasspath=/sw/test/GCC/trunk/libjava/classpath/lib --encoding=UTF-8 -Wno-deprecated -fbootstrap-classes -g -O2 -c -fsource-filename=/files/pfeifer/OBJ-0129-2308/i386-unknown-freebsd5.4/libjava/classpath/lib/classes -MT gnu/javax/swing/text/html/parser.lo -MD -MP -MF gnu/javax/swing/text/html/parser.deps @gnu/javax/swing/text/html/parser.list -fPIC -o gnu/javax/swing/text/html/.libs/parser.o
>  > jc1: out of memory allocating 4072 bytes after a total of 536273352 bytes
>  > gmake[3]: *** [gnu/javax/swing/text/html/parser.lo] Error 1
>  > gmake[3]: Leaving directory `/files/pfeifer/OBJ-0129-2308/i386-unknown-freebsd5.4/libjava'
>  > gmake[2]: *** [all-recursive] Error 1
>  > gmake[2]: Leaving directory `/files/pfeifer/OBJ-0129-2308/i386-unknown-freebsd5.4/libjava'
>  > gmake[1]: *** [all-target-libjava] Error 2
>  > gmake[1]: Leaving directory `/files/pfeifer/OBJ-0129-2308'
>  > gmake: *** [bootstrap-lean] Error 2