__cygwin_environ, __imp_environ, _cur_environ, where is 'environ' symbol?
Vasiliy
testtest_2005@ukr.net
Wed Jun 12 12:12:00 GMT 2013
ok, it seems that newlib/libc/stdlib/environ.c has not made its way
into cygwin1.dll and/or libcygwin.a; shouldn't that be included?
________________________________
From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
To: cygwin at cygwin dot com
Date: Wed, 12 Jun 2013 11:53:15 +0200
Subject: Re: __cygwin_environ, __imp_environ, _cur_environ, where is
'environ' symbol?
References: <CAHYyVz6bkXx89HZsWrt8ojgUVw02W_qG1s6bd7Ev2XAW3wcRog at
mail dot gmail dot com>
Reply-to: cygwin at cygwin dot com
________________________________
environ is the exported symbol referencing the internal __cygwin_environ
variable on x86_64. Linking against and accessing it works for me:
$ uname -a
CYGWIN_NT-6.2 VMBERT864 1.7.21(0.266/5/3) 2013-06-11 21:43 x86_64 Cygwin
$ cat > envtest.c <<EOF
#include <stdio.h>
int
main ()
{
extern char **environ;
printf ("environ: %p first entry: <%s>\n", &environ, environ[0]);
return 0;
}
EOF
$ gcc -o envtest envtest.c
$ ./envtest
environ: 0x1802a4778 first entry: <ALLUSERSPROFILE=C:\ProgramData>
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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