Re: i686-w64-mingw32-gcc -fstack-protector-strong

[Marco Atzeri <marco dot atzeri at gmail dot com>]

On 08/09/2017 20:53, Lee wrote:
> On 9/8/17, Marco Atzeri   wrote:
> > On 08/09/2017 16:14, Lee wrote:
> > > I'm hoping that I'm just missing a library, but which one?  Even
> > > better, how to tell which one?
> > >
> > > $ i686-w64-mingw32-gcc -o div.exe div.c
> > > $ ./div
> > >     works
> > >
> > > $ i686-w64-mingw32-gcc -fstack-protector-strong -o div.exe div.c
> > > $ ./div
> > > C:/cygwin/home/Lee/t/div.exe: error while loading shared libraries: ?:
> > > cannot open shared object file: No such file or directory
> > >
> > > $ ldd div.exe
> > >           ntdll.dll => /cygdrive/c/WINDOWS/SYSTEM32/ntdll.dll
> > > (0x7ffef5c50000)
> > >           ??? => ??? (0x778f0000)
> > >           wow64.dll => /cygdrive/c/WINDOWS/System32/wow64.dll (0x50e50000)
> > >           wow64win.dll => /cygdrive/c/WINDOWS/System32/wow64win.dll
> > > (0x50dd0000)
> >
> > try
> >     cygcheck ./div.exe
>
> nothing useful for a non-cygwin program?
> $ cygcheck ./div.exe
> C:\cygwin\home\Lee\t\div.exe

cygcheck works also for not cygwin program
( cygcheck --help for details)

cd /cygdrive/c/windows/system32

 $ cygcheck ./net.exe
C:\windows\system32\net.exe
  C:\windows\system32\ADVAPI32.dll
    C:\windows\system32\msvcrt.dll
      C:\windows\system32\KERNELBASE.dll
        C:\windows\system32\ntdll.dll
[long cut]
  C:\windows\system32\samcli.dll
  C:\windows\system32\srvcli.dll
  C:\windows\system32\wkscli.dll
  C:\windows\system32\MPR.dll
  C:\windows\system32\IPHLPAPI.DLL
    C:\windows\system32\NSI.dll
    C:\windows\system32\WINNSI.DLL

You can also use

 $ objdump -x ./net.exe |grep -i "dll name"
        DLL Name: ADVAPI32.dll
        DLL Name: KERNEL32.dll
        DLL Name: msvcrt.dll
        DLL Name: ntdll.dll
        DLL Name: netutils.dll
        DLL Name: browcli.dll
        DLL Name: samcli.dll
        DLL Name: srvcli.dll
        DLL Name: wkscli.dll
        DLL Name: MPR.dll
        DLL Name: IPHLPAPI.DLL


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