Hello,
There seems to be a bug in cygwin linker, which causes invalid order of
object initialization.
Comments?
rgds,
PRR
---
bug.cpp:
#include <stdio.h>
class CIntHolder{
public:
CIntHolder(int iValue) { m_iValue=iValue; }
int m_iValue;
};
static int g_Counter;
CIntHolder g_Object3(++g_Counter);
CIntHolder __attribute__ ((init_priority(102))) g_Object2(++g_Counter);
CIntHolder __attribute__ ((init_priority(101))) g_Object1(++g_Counter);
CIntHolder g_Object4(++g_Counter);
int main(){
printf("%d %d %d %d\n", g_Object1.m_iValue, g_Object2.m_iValue,
g_Object3.m_iValue, g_Object4.m_iValue);
return 0;
}
---
According to documentation, default objects have lowest priority (0xffff), so
the correct order of g_Object initalization should be 1, 2, 3, 4.
Programs compiled under CygWin create Objects 3 and 4 prior to 1 and 2.
---
Possible cause:
Objects, that have init_priority defined, are created in correct order,
which implies that the default priority of object initialization is etiher
0 or not initialized on linker startup.
---
Screenshot:
prr@PRR /
$ g++ bug.cpp
prr@PRR /
$ ./a.exe
3 4 1 2
prr@PRR /
$ gcc -v
Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/3.2/specs
Configured with: /netrel/src/gcc-3.2-3/configure
--enable-languages=c,c++,f77,ja
va --enable-libgcj --enable-threads=posix --with-system-zlib --enable-nls
--with
out-included-gettext --enable-interpreter --disable-sjlj-exceptions
--disable-ve
rsion-specific-runtime-libs --enable-shared --build=i686-pc-linux
--host=i686-pc
-cygwin --target=i686-pc-cygwin --enable-haifa --prefix=/usr
--exec-prefix=/usr
--sysconfdir=/etc --libdir=/usr/lib --includedir=/nonexistent/include
--libexecd
ir=/usr/sbin
Thread model: posix
gcc version 3.2 20020927 (prerelease)
prr@PRR /
$ ld -v
GNU ld version 2.13.90 20021118
---
cygcheck.out:
Cygwin Win95/NT Configuration Diagnostics
Current System Time: Mon Jan 20 14:46:09 2003
Windows 2000 Professional Ver 5.0 Build 2195 Service Pack 2
Path: C:\cygwin\usr\local\bin
C:\cygwin\bin
C:\cygwin\bin
c:\WINNT\system32
c:\WINNT
c:\WINNT\System32\Wbem
c:\Program Files\ATI Technologies\ATI Control Panel
c:\Program Files\Symantec\pcAnywhere\
SysDir: C:\WINNT\System32
WinDir: C:\WINNT
HOME = :\cygwin'
MAKE_MODE = nix'
PWD = /'
USER = rr'
ALLUSERSPROFILE = :\Documents and Settings\All Users'
APPDATA = :\Documents and Settings\prr\Application Data'
COMMONPROGRAMFILES = :\Program Files\Common Files'
COMPUTERNAME = RR'
COMSPEC = :\WINNT\system32\cmd.exe'
HOMEDRIVE = :'
HOMEPATH = '
LOGONSERVER = \FSERVER'
NUMBER_OF_PROCESSORS =
OLDPWD = /usr/bin'
OS2LIBPATH = :\WINNT\system32\os2\dll;'
OS = indows_NT'
PATHEXT = .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PROCESSOR_ARCHITECTURE = †'
PROCESSOR_IDENTIFIER = † Family 15 Model 2 Stepping 4, GenuineIntel'
PROCESSOR_LEVEL =
PROCESSOR_REVISION = 4'
PROGRAMFILES = :\Program Files'
PROMPT = $P$G'
PS1 = [\033]0;\w\007
\033[32m\]\u@\h \[\033[33m\w\033[0m\]
$ '
SHLVL =
SYSTEMDRIVE = :'
SYSTEMROOT = :\WINNT'
TEMP = :\DOCUME~1\prr\LOCALS~1\Temp'
TERM = ygwin'
TMP = :\DOCUME~1\prr\LOCALS~1\Temp'
USERDNSDOMAIN = laytech.playtech'
USERDOMAIN = LAYTECH'
USERNAME = rr'
USERPROFILE = :\Documents and Settings\prr'
WINDIR = :\WINNT'
_ = /usr/bin/cygcheck'
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
(default) = /cygdrive'
cygdrive flags = 0x00000022
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
(default) = :\cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = :\cygwin/bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = :\cygwin/lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
a: fd N/A N/A
c: hd NTFS 10001Mb 82% CP CS UN PA FC
d: hd NTFS 26999Mb 59% CP CS UN PA FC Work
e: hd NTFS 2196Mb 65% CP CS UN PA FC Personal
f: cd CDFS 0Mb -2147483548% CS Audio CD
h: net NTFS 60000Mb 8% CP CS UN PA FC Develop
k: net NTFS 20002Mb 22% CP CS UN PA FC Clients
t: net NTFS 259408Mb 77% CP CS UN PA Graphics
C:\cygwin / system binmode
C:\cygwin/bin /usr/bin system binmode
C:\cygwin/lib /usr/lib system binmode
. /cygdrive user binmode,cygdrive
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cpp.exe
Found: C:\cygwin\bin\find.exe
Found: C:\cygwin\bin\gcc.exe
Not Found: gdb
Found: C:\cygwin\bin\ld.exe
Found: C:\cygwin\bin\ls.exe
Not Found: make
Found: C:\cygwin\bin\sh.exe
45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
"cygform5.dll" v0.0 ts=2001/4/25 8:28
35k 2002/01/09 C:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
"cygform6.dll" v0.0 ts=2002/1/9 8:03
19k 2002/02/20 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2002/2/20 5:05
17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/7 6:34
20k 2002/10/10 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
"cyghistory5.dll" v0.0 ts=2002/10/10 20:28
929k 2002/06/24 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
"cygiconv-2.dll" v0.0 ts=2002/6/24 21:24
22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
"cygintl-1.dll" v0.0 ts=2001/12/13 11:28
28k 2002/09/20 C:\cygwin\bin\cygintl-2.dll - os=4.0 img=1.0 sys=4.0
"cygintl-2.dll" v0.0 ts=2002/9/20 6:13
26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
"cygmenu5.dll" v0.0 ts=2001/4/25 8:27
20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
"cygmenu6.dll" v0.0 ts=2002/1/9 8:03
156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++5.dll" v0.0 ts=2001/4/25 8:29
175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++6.dll" v0.0 ts=2002/1/9 8:03
226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses5.dll" v0.0 ts=2001/4/25 8:17
202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses6.dll" v0.0 ts=2002/1/9 8:03
15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
"cygpanel5.dll" v0.0 ts=2001/4/25 8:27
12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
"cygpanel6.dll" v0.0 ts=2002/1/9 8:03
40k 2001/11/21 C:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
"cygpcre.dll" v0.0 ts=2001/11/22 0:15
39k 2001/11/21 C:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix.dll" v0.0 ts=2001/11/22 0:15
108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/7 6:34
127k 2002/10/10 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
"cygreadline5.dll" v0.0 ts=2002/10/10 20:28
50k 2002/03/12 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2002/3/12 6:38
880k 2002/12/25 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2002/12/25 22:37
Cygwin DLL version info:
DLL version: 1.3.18
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 69
Shared data: 3
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix: cygdrive prefix
Cygdrive default prefix:
Build date: Wed Dec 25 15:37:50 EST 2002
Shared id: cygwin1S3
Cygwin Package Information
Last downloaded files to: C:\temp\CygWin
Last downloaded files from:
ftp://ftp.inf.tu-dresden.de/software/windows/cygwin32
Package Version
_update-info-dir 00121-1
ash 20020731-1
autoconf 2.54-1
autoconf-devel 2.57-1
autoconf-stable 2.13-4
automake 1.7.1-1
automake-devel 1.7.2-1
automake-stable 1.4p5-5
base-files 1.1-1
base-passwd 1.0-1
bash 2.05b-8
binutils 20021117-1
cmake 1.4.7-1
cygwin 1.3.18-1
diff 1.0-1
diffutils 2.8.1-1
fileutils 4.1-1
findutils 4.1.7-4
gawk 3.1.1-5
gcc 3.2-3
gcc-mingw 20020817-5
gdbm 1.8.0-4
grep 2.5-1
gzip 1.3.3-4
libiconv2 1.8-2
libintl1 0.10.40-1
libintl2 0.11.5-1
libncurses5 5.2-1
libncurses6 5.2-8
libreadline4 4.1-2
libreadline5 4.3-2
login 1.7-1
m4 1.4-1
mingw-runtime 2.3-1
mktemp 1.4-1
ncurses 5.2-8
pcre 3.7-1
perl 5.6.1-2
readline 4.3-2
sed 4.0.5-1
sh-utils 2.0.15-3
tar 1.13.25-1
termcap 20020930-1
terminfo 5.2-3
texinfo 4.2-4
textutils 2.0.21-1
w32api 2.1-1
which 1.5-1
zlib 1.1.4-1
Use -h to see help about each section
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