From: Adnan Khaleel <adnan AT ee DOT tamu DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Help with Assembly -
Date: Sun, 10 Jan 1999 21:37:45 -0600
Organization: Texas A&M University, College Station, Texas
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Hi there,

I'm porting a program from UNIX over to dos and I'm using the good old
DJGPP for it (what else!). I have one problem that I cant figure out.
One of the files of the source code is written entirely in assembly and
has several routines and is contained in a file with a .s extention. All
the files i.e. all the *.c and this *.s file are compiled into object
files and then into a library. Later this library in called during
linking the usual.

Everything compiles fine even the .s file but when I link it later on, I
get errors saying that there is an undefined reference to the functions
in the .s file. I've done exactly the same think in UNIX and I've never
encountered these errors.
Here is a sample from that .s file just in case.

 .file "subs.s"
 .text
 .globl _restore
_restore:
 movl _spp,%esp
 movl _fpp,%ebp
 movl _xlen,%ebx
 movl _xto,%esi
 movl _xfrom,%edi
 jmp .L1
.L0:
 movl %esi,%eax
 movl %edi,%edx
 movl (%edx),%ecx
 movl %ecx,(%eax)
 addl $4,%esi
 addl $4,%edi
.L1:
 movl %ebx,%eax
 decl %ebx
 testl %eax,%eax
 jg .L0
 movl (%esp),%ebx
 movl 4(%esp),%esi
 movl 8(%esp),%edi
 leave
 ret


where _spp, _fpp .... are global variables. Its in the standard AT&T
syntax so thats not the problem.

Any help or pointers appreciated.

Adnan