diff options
Diffstat (limited to 'winsup/cygwin/mmap.cc')
| -rw-r--r-- | winsup/cygwin/mmap.cc | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/winsup/cygwin/mmap.cc b/winsup/cygwin/mmap.cc index 7c7d84c86..6beb45a2e 100644 --- a/winsup/cygwin/mmap.cc +++ b/winsup/cygwin/mmap.cc @@ -203,7 +203,7 @@ mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t off) caddr_t base = addr; HANDLE h; - if (fd == -1) + if ((flags & MAP_ANONYMOUS) || fd == -1) { fh_paging_file.set_io_handle (INVALID_HANDLE_VALUE); fh = &fh_paging_file; @@ -463,8 +463,16 @@ fhandler_disk_file::mmap (caddr_t *addr, size_t len, DWORD access, if (!base || ((flags & MAP_FIXED) && base != addr)) { - __seterrno (); - syscall_printf ("-1 = mmap(): MapViewOfFileEx failed with %E"); + if (!base) + { + __seterrno (); + syscall_printf ("-1 = mmap(): MapViewOfFileEx failed with %E"); + } + else + { + set_errno (EINVAL); + syscall_printf ("-1 = mmap(): address shift with MAP_FIXED given"); + } CloseHandle (h); return INVALID_HANDLE_VALUE; } |