This is the mail archive of the
cygwin@cygwin.com
mailing list for the Cygwin project.
possible munmap bug
- From: "peter garrone" <pgarrone at linuxmail dot org>
- To: cygwin at cygwin dot com
- Date: Fri, 26 Sep 2003 09:52:48 +0800
- Subject: possible munmap bug
Hi,
This was causing my build of gcc to fail.
File winsup/cygwin/mmap.cc version 1.86 (and earlier) function munmap
when unmapping a 64K record, passes the wrong parameters to fhandler_base::munmap,
passing the function parameter address/length instead of a block local version.
This patch explains it all.
diff -r -p -U 5 cygwin-snapshot-20030924-1/winsup/cygwin/mmap.cc new_cygwin/winsup/cygwin/mmap.cc
--- cygwin-snapshot-20030924-1/winsup/cygwin/mmap.cc 2003-09-25 10:40:33.000000000 +1000
+++ new_cygwin/winsup/cygwin/mmap.cc 2003-09-26 11:34:29.984375000 +1000
@@ -679,11 +679,11 @@ munmap (void *addr, size_t len)
mmap_record *rec = map_list->get_record (record_idx);
if (rec->unmap_pages (u_addr, u_len))
{
/* The whole record has been unmapped, so... */
fhandler_base *fh = rec->alloc_fh ();
- fh->munmap (rec->get_handle (), (caddr_t)addr, len);
+ fh->munmap (rec->get_handle (), (caddr_t)u_addr, u_len);
rec->free_fh (fh);
/* ...delete the record. */
if (map_list->del_record (record_idx--))
{
--
______________________________________________
http://www.linuxmail.org/
Now with e-mail forwarding for only US$5.95/yr
Powered by Outblaze
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/