Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
To: cygwin AT cygwin DOT com
From: "Alex Vinokur" <alexvn AT connect DOT to>
Subject: gcc -mno-cygwin foo.c & gcc foo.c generate different behavior
Date: Tue, 22 Jun 2004 19:06:34 +0300
Lines: 72
Message-ID: <cb9lec$ueu$1@sea.gmane.org>
X-Complaints-To: usenet AT sea DOT gmane DOT org
X-Gmane-NNTP-Posting-Host: 82.166.217.97
X-Newsreader: Microsoft Outlook Express 6.00.2800.1409

====================
Windows 2000
CYGWIN_NT-5.0 1.5.10-3 (0.116/4/2)
gcc (GCC) 3.3.1 (cygming special)
====================



------ foo.c ------

#include <stdio.h>

struct foo
{
  char* bar_;
};

int main()
{
char* ch = "ABC";
struct foo* f;

  f->bar_ = ch;  /* gcc foo.c : Segmentation fault */
  printf("start\n");
  printf("---> %s\n", f->bar_);
  printf("finish\n");

  return 0;

}

-------------------

$ gcc -mno-cygwin foo.c

$ a
start
---> ABC
finish

$ cygcheck a
Found: .\a.exe
a.exe
  C:\WINNT\system32\msvcrt.dll
    C:\WINNT\system32\KERNEL32.dll
      C:\WINNT\system32\NTDLL.DLL


$ gcc foo.c

$ a
Segmentation fault (core dumped)

$ cygcheck a
Found: .\a.exe
a.exe
  C:\cygwin\bin\cygwin1.dll
    C:\WINNT\system32\ADVAPI32.DLL
      C:\WINNT\system32\NTDLL.DLL
      C:\WINNT\system32\KERNEL32.DLL
      C:\WINNT\system32\RPCRT4.DLL


-- 
   Alex Vinokur
     http://mathforum.org/library/view/10978.html
     http://sourceforge.net/users/alexvn







--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/