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Message-ID: <20020721185338.65304.qmail@web10105.mail.yahoo.com>
Date: Sun, 21 Jul 2002 20:53:38 +0200 (CEST)
From: =?iso-8859-1?q?Sylvain=20Petreolle?= <spetreolle AT yahoo DOT fr>
Subject: Re: g++ (v.3.1.1-4)  -mno-cygwin with a hello world sample crashes oddly
To: cygwin AT cygwin DOT com
In-Reply-To: <20020721170010.GB1183@redhat.com>
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This thread is not dead.
The result of this shows that Cygwin can at the moment be told to
execute code without having a correct executable file (also COFF
format).

Cygwin should have detected a non-executable file and 
have refused to launch it.

What happens here on NT:
if you use incorrect syntax by appending .exe in g++ cmd :
$ g++ -mno-cygwin -c cpplus.cpp -o cpplus.exe ; g++ -mno-cygwin -c
cpplus.cpp -o cpplus
$ ls -l cpplus cpplus.exe
-rw-r--r--    1 Nom      544          1855 Jul 21 20:38 cpplus
-rwxr-xr-x    1 Nom      544          1855 Jul 21 20:41 cpplus.exe
finally tring to launch it:
$ ./cpplus
BASH: ./cpplus: Permission denied
$ ./cpplus.exe
runs and hangs. (note that under Windows ME it doesn't run,saying
permission denied though it's detected as executable by ls).

two problems:
- ls should show non executable file (problem in cygwin filesystem /ls
excutable detection routine)
- incorrect code can be launched on NT systems.

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