From owner-freebsd-hackers@FreeBSD.ORG  Sun Apr 24 08:15:17 2005
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 301C916A4CE
	for <freebsd-hackers@freebsd.org>;
	Sun, 24 Apr 2005 08:15:17 +0000 (GMT)
Received: from smtp01.aptg.net (smtp01.aptg.net [210.200.211.36])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 1AB3643D2D
	for <freebsd-hackers@freebsd.org>;
	Sun, 24 Apr 2005 08:15:16 +0000 (GMT)
	(envelope-from b8701143@tmu.edu.tw)
Received: from localhost (localhost [127.0.0.1])664D653375E
	for <freebsd-hackers@freebsd.org>;
	Sun, 24 Apr 2005 16:15:15 +0800 (CST)
Received: from smtp01.aptg.net ([127.0.0.1])
 by localhost (smtp01 [127.0.0.1]) (amavisd-new, port 10024) with ESMTP
 id 24328-19 for <freebsd-hackers@freebsd.org>;
 Sun, 24 Apr 2005 16:15:15 +0800 (CST)
Received: from IBM6C6CDABCD41 (210-58-40-189.cm.dynamic.apol.com.tw
	[210.58.40.189])CC851533759	for <freebsd-hackers@freebsd.org>;
	Sun, 24 Apr 2005 16:15:14 +0800 (CST)
Message-ID: <001601c548a5$bcdde6b0$6702a8c0@IBM6C6CDABCD41>
From: "HHCHANG" <b8701143@tmu.edu.tw>
To: <freebsd-hackers@freebsd.org>
Date: Sun, 24 Apr 2005 16:15:12 +0800
MIME-Version: 1.0
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2900.2180
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180
X-Virus-Scanned: by amavisd-new at aptg.net
Content-Type: text/plain;
	charset="big5"
Content-Transfer-Encoding: quoted-printable
X-Content-Filtered-By: Mailman/MimeDel 2.1.1
Subject: about execute assembly exapmles under freebsd
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 24 Apr 2005 08:15:17 -0000

Hi,
I couldn't execute assembly example  under freebsd .
The environment and tools I used were (in IBM X31 box):
1.
bash-2.05b# uname -a
FreeBSD sexbear.localhost 5.3-STABLE FreeBSD 5.3-STABLE #3: Sun Feb 20 =
21:55:06 UTC 2005    =
?root@sexbear.localhost:/usr/obj/usr/src/sys/SEXBEAR??i386
2.
bash-2.05b# as -v
GNU assembler version 2.15 [FreeBSD] 2004-05-23 (i386-obrien-freebsd) =
using BFD version 2.15 [FreeBSD] 2004-05-23

bash-2.05b# ld -v
GNU ld version 2.15 [FreeBSD] 2004-05-23

3.(compile and execute the example)
bash-2.05b#
  as -gstabs -o cpuid.o cpuid.s
  ld -o cpuid cpuid.o
  cpuid (no output after executing the program)
  gdb cpuid
  (gdb) run
  Starting program: /usr/local/src/code/chap04/cpuid
  Program exited with code 0340.
  (gdb) break *_start
  (gdb) run
  Program exited with code 0340.
###################example in book###################################
#cpuid.s Sample program to extract the processor Vendor ID
.section .data
output:
   .ascii "The processor Vendor ID is 'xxxxxxxxxxxx'\n"
.section .text
.globl _start
_start:
   movl $0, %eax
   cpuid
   movl $output, %edi
   movl %ebx, 28(%edi)
   movl %edx, 32(%edi)
   movl %ecx, 36(%edi)
   movl $4, %eax
   movl $1, %ebx
   movl $output, %ecx
   movl $42, %edx
   int $0x80
   movl $1,
   %eax
   movl $0, %ebx
   int $0x80

###################example in book###################################

I viewed the tutorial: http://www.int80h.org/bsdasm/.
but I couldn't find any syntax error in the program.
Could someone give me a hint where I could find the more information?
Thanks~

Regards,