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Date: Thu, 02 Jul 2009 08:04:00 -0000
From: Lennyk <lennyk430@gmail.com>
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To: gcc-help@gcc.gnu.org
Subject: undefined reference to... when using intel inline asm
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Hi,

I'm having difficulties translating Windows-style intel assembler to 
Linux (with GCC).

Code (Window-style):
int bswap(int n)
{
    __asm
    {
       mov eax, n
       bswap eax
       mov n, eax
    }
    return n;
}

After looking at some guides/tutorials I've translated this code to Linux:
int bswap(int n)
{
    asm(".intel_syntax noprefix");
    asm("mov eax, n");
    asm("bswap eax");
    asm("mov n, eax");
    asm(".att_syntax noprefix");
    return n;
}

Compilation passes - but the linker shouts: "undefined reference to `n'"

What am I doing wrong? Shouldn't it be straight forward to translate 
these simple commands to Linux?

GCC version: 4.1.2 20080704 (Red Hat 4.1.2-44)
Target: i386-redhat-linux

Thanks!