MinGW - Minimalist GNU for Windows

It turns out that I should have specified the "--main"
flag like this:

/c/gcc3.2/tgcc/bin/gcj -O --main=T T.java

Classic RTFM!

(The -O gets rid of the ".stabs" errors - no debugging
information generated.)

So it *FINALLY* prints out the uber-gratifying "Hello World!".
:-)

But happiness was shortlived - when I saw the size of the EXE:

-rwxr-xr-x    1 rmathew  Administ 14114054 Aug 27  2002 a.exe

14MB is an awful lot for something that merely prints "Hello
World!"! So I ran "strip" on the EXE and now:

-rwxr-xr-x    1 rmathew  Administ  1816576 Aug 27  2002 a.exe

This still *is* a lot and I must figure out what I can
do about it (if at all). :-(

Thanks a lot for all your help and support - and of course
patience. :-)

Ranjit.

Ranjit Mathew wrote:
> Hi,
> 
>     Some of you might by now be sick of my messages
> regarding GCJ/MinGW, but in all fairness, I must
> post an update on my progress so far. ;-)
> 
> Well, I have FINALLY been able to build and install
> GCJ/MinGW (Yay!) but there still seems some way to
> go. The simple HelloWorld program gives the following
> errors:
> -------------------------- 8< --------------------------
> /h/temp > /c/gcc3.2/tgcc/bin/gcj T.java
> C:\TEMP/ccaEaaaa.s: Assembler messages:
> C:\TEMP/ccaEaaaa.s:26: Warning: .stabs: description field '60005' too 
> big, try a different debug format
> C:\TEMP/ccaEaaaa.s:55: Warning: .stabs: description field '10001' too 
> big, try a different debug format
> c:/gcc3.2/tgcc/bin/../lib/gcc-lib/mingw32/3.2/../../../libmingw32.a(main.o)(.text+0x7f):main.c: 
> undefined reference to `WinMain@...'
> -------------------------- 8< --------------------------
> 
> While I can understand the source of the ".stabs" errors
> (I should have used a different debugging format - dwarf32?),
> I do not understand the WinMain@... errors, because it comes
> even when I give the -mconsole command line option to
> GCJ.
> 
> BTW, The compiler automatically defaults to using
> the "crt2.o" startup code from mingw-runtime, instead of
> "crtbegin.o" from GCC 3.2, in which case, the code for
> that should also be a part, IMHO, of the GCC distro.
> 
> Thanks a lot, once again, for your help and support
> guys. And please tell me if I'm wasting too much of
> your time - and bandwidth. :-)
> 
> Sincerely Yours,
> Ranjit Mathew.
> 
> 
> 
> 
> 
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Ranjit Mathew <rmathew@...> writes:

[snip]

> But happiness was shortlived - when I saw the size of the EXE:
> 
> -rwxr-xr-x    1 rmathew  Administ 14114054 Aug 27  2002 a.exe
> 
> 14MB is an awful lot for something that merely prints "Hello
> World!"! So I ran "strip" on the EXE and now:
> 
> -rwxr-xr-x    1 rmathew  Administ  1816576 Aug 27  2002 a.exe
> 
> This still *is* a lot and I must figure out what I can
> do about it (if at all). :-(

Don't let that discourage you. A 4 lines C++ "hello world" executable
is about 200 KB stripped, but this doesn't mean that an application
made from 40000 lines must result on 2 GB executable.

Try with a "real world" Java application. Obviously, almost 100% of
your 1.8 MB executable is fixed baggage that is "amortized" as your
application grows.

[snip]

-- 
Oscar

Can you make available a patch based on what you have accomplished so far?
I too am interested in getting gcj to work.