From:	Waldemar Schultz <schultzma AT ma DOT tum DOT de>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: MINGW vs DJGPP
Date:	Wed, 18 Apr 2001 17:40:26 +0200
Organization:	[posted via] Leibniz-Rechenzentrum, Muenchen (Germany)
Lines:	82
Message-ID:	<3ADDB56A.D939F09@ma.tum.de>
References:	<3ADD8755 DOT 71826091 AT ma DOT tum DOT de> <3ADDD586 DOT 15573 DOT EE76FB AT localhost>
NNTP-Posting-Host:	pcritter14.mathematik.tu-muenchen.de
Mime-Version:	1.0
X-Trace:	wsc10.lrz-muenchen.de 987608408 15379 131.159.68.151 (18 Apr 2001 15:40:08 GMT)
X-Complaints-To:	news AT lrz-muenchen DOT de
NNTP-Posting-Date:	18 Apr 2001 15:40:08 GMT
X-Mailer:	Mozilla 4.75 [de] (Win98; U)
X-Accept-Language:	de,en-US
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

more problems with MINGW port of gcc-2.95.2:

strw.c:
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

 int main(void)
 {
 char *bbb="ABCDefgh";

  strlwr(bbb);
  printf("%s\n",bbb);
  return EXIT_SUCCESS;
 }

#66:W98>gcc -c strw.c -g -W -Wall
#66:W98>gcc strw.o -o strw.exe -mwindows -mconsole
#66:W98>strw.exe
STRW verursachte einen Fehler durch eine ungültige Seite [error: invalid
page]
in Modul MSVCRT.DLL bei 016f:780259c0.
Register:
EAX=00401210 CS=016f EIP=780259c0 EFLGS=00010202
EBX=00530000 SS=0177 ESP=0253fd98 EBP=0253fda8
ECX=00401261 DS=0177 ESI=00000000 FS=4d47
EDX=00401210 ES=0177 EDI=00000000 GS=0000
Bytes bei CS:EIP:
88 0a 42 80 3a 00 75 e9 5f 5e c9 c3 bf a0 71 03 
Stapelwerte: [stack values]
00000000 8184b424 00000000 00401270 0253fdd8 0040123e 00401210 00402004
0253fdd8 0040122b 0253fde4 8184037f 0253fe18 780042f4 00401210 0000023f 

#66:W98>gdb strw.exe
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "i386-mingw32"...
(gdb) r
Starting program: ./strw.exe
78000000:D:/W/98/SYSTEM/MSVCRT.DLL
bff70000:D:/W/98/SYSTEM/KERNEL32.DLL

Program received signal SIGSEGV, Segmentation fault.
0x780259c0 in _size_of_stack_reserve__ ()
(gdb)

But

(gdb) b main
Breakpoint 1 at 0x40122b: file strw.c, line 7.
(gdb) r
Starting program: ./strw.exe
78000000:D:/W/98/SYSTEM/MSVCRT.DLL
bff70000:D:/W/98/SYSTEM/KERNEL32.DLL

Breakpoint 1, main () at strw.c:7
7        char *bbb="ABCDefgh";
(gdb) s
9         strlwr(bbb);
(gdb) s
10        printf("%s\n",bbb);
abcdefgh
(gdb) s
11        exit(EXIT_SUCCESS);
(gdb) s

Program exited normally.
(gdb)

has anyone experienced crashig such a simple program ?

-- 
 Gruss Waldemar Schultz.
 Technische Universität München, Zentrum Mathematik M1, D 80290 München
 Tel: +49 (0)89 2892 8226        FAX: +49 (0)89 2892 8228

- Raw text -