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Mail Archives: djgpp/1994/11/08/22:15:55

To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: binutils on linux for go32/dos
Date: Tue, 8 Nov 1994 13:12:22 PST
From: "Marty Leisner" <leisner AT sdsp DOT mc DOT xerox DOT com>

(I spelled it wrong and it bounced)...
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To: dgjpp, bug-gnu-utils AT prep DOT ai DOT mit DOT edu
Subject: compiling binutils on linux for go32/dos
Fcc: +sent
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This is a general  problem for generating cross configurations...

I want to:
	do linux/go32 on linux
	do sparc/lynx-sparc/linux/go32 on sun/sparc


I made binutils on linux for linux and go32...
(its working for 2.5.1). 

Since I understand you need a different assembler
for each target:
	1) I made the binutils and ld for go32 and linux
	2) I made an assembler for linux
	3) I made an assembler for go32

I have a trivial C program:
main() {
 printf("Hello world\n");
}

Both produce the following assembler:
       .file   "hello.c"
gcc2_compiled.:
___gnu_compiled_c:
.text
LC0:
        .ascii "Hello world\12\0"
        .align 4
.globl _main
_main:
        pushl %ebp
        movl %esp,%ebp
        call ___main
        pushl $LC0
        call _printf
        addl $4,%esp
L1:
        movl %ebp,%esp
        popl %ebp
        ret

When I use the go32 version nm I get:
marty AT compaq$ nm hello.o
0000002c b .bss
0000002c d .data
00000000 t .text
00000025 t L1
00000000 t LC0
00000000 t ___gnu_compiled_c
         U ___main
00000010 T _main
         U _printf
00000000 t gcc2_compiled.

hello.o is 521 bytes...

For linux:
marty AT compaq$ nm hello.o
00000000 t ___gnu_compiled_c
         U ___main
00000010 T _main
         U _printf
00000000 t gcc2_compiled.
marty AT compaq$ ls -l hello.o
- - -rw-r--r--   1 marty    users         219 Oct 31 23:27 hello.o

I'm not sure whatis different --
on Linux it knows enough that I'm not interested in the .text, .bss, etc...
and the internal jumps...but its present in go32...

How can I get the assembler and nm  to eat the  internal jumps and .text, .data, .bss symbols?

marty		 Member of the League of Programming Freedom
leisner AT sdsp DOT mc DOT xerox DOT com  

Any sufficiently advanced technology is indistinquishable from magic
        Arthur C. Clarke, The Lost Worlds of 2001

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