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Date: Thu, 9 Dec 2010 16:10:16 GMT
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To: freebsd-ports-bugs@FreeBSD.org
From: Chris Calvey <chris@geonumerical.org>
Cc: 
Subject: Re: ports/152304: sysutils/fcron: illegal instruction 4
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The following reply was made to PR ports/152304; it has been noted by GNATS.

From: Chris Calvey <chris@geonumerical.org>
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: ports/152304: sysutils/fcron: illegal instruction 4
Date: Thu, 9 Dec 2010 15:39:16 +0000

 I have found the cause of this bug. When subs.c is compiled the
 following warning message is generated:
 
 subs.c: In function 'open_as_user':
 subs.c:124: warning: 'mode_t' is promoted to 'int' when passed through
 '...'
 subs.c:124: warning: (so you should pass 'int' not 'mode_t' to 'va_arg')
 subs.c:124: note: if this code is reached, the program will abort
 
 gcc generates a ud2a instruction in the resulting subs.o object file and
 the program indeed aborts when it hits this instruction.
 
 This is a temporary patch that resolves this problem:
 
 --- subs.c.orig	2010-12-09 14:41:13.000000000 +0000
 +++ subs.c	2010-12-09 14:41:46.000000000 +0000
 @@ -121,7 +121,7 @@
  
      if (flags & O_CREAT) {
          va_start(ap, flags);
 -        mode = va_arg(ap, mode_t);
 +        mode = va_arg(ap, int);
          va_end(ap);
      }
  
 @@ -179,7 +179,7 @@
  
      if (flags & O_CREAT) {
          va_start(ap, flags);
 -        mode = va_arg(ap, mode_t);
 +        mode = va_arg(ap, int);
          va_end(ap);
      }
  
 I have reported the above to the fcron developer in addition.
 
 Regards
 
 Chris