Re: How to link HelloWorld.O (created by GCC) ??

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Article #148

#148

From: Tauno Voipio
Date: Thu, 22 May 2003 07:26

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"Hans" <nospam@nospam.com> wrote in message
news:bagdiq$ol1$1@news4.tilbu1.nb.home.nl...
> Hello,
>
> I have written HelloWorld.c and compiled to assembly using GCC. (so I can
> study the assembly).
>
> Using AS I have assembled HelloWorld.s to HelloWorld.O
>
> But how to link HelloWorld.O to HelloWorld Executable? Which minimal
command
> line options do I need to use to link? The Linker is complaining about the
> Printf call. Against which and HOW sharedlibrary stub do I need to link
> HelloWorld.O?
>

By far, the easiest way is to let GCC do it. You can add switches on the GCC
command line to produce an assembly listing in addition to the final code.

Try this:

   gcc -o hello -Wa,-ahlms=hello.lst hello.c

HTH

Tauno Voipio
tauno voipio @ iki fi

PS:

If the assembly code looks complicated, add the switch -O2 to the command
line and try again.

TV

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From: "Tauno Voipio" <tauno.voipio@iki.fi.SPAMBAIT_REMOVE.invalid>
Newsgroups: comp.lang.asm.x86,gnu.gcc
Subject: Re: How to link HelloWorld.O (created by GCC) ??
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