From: Alan Modra <amodra@gmail.com>
Date: Thu, 27 Oct 2005 04:06:35 +0000 (+0000)
Subject: 	* bfdwin.c (bfd_get_file_window): Seek into file in place of
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=182a009999e52ae9e397fa0a628b52027b232e3d;p=binutils-gdb.git

	* bfdwin.c (bfd_get_file_window): Seek into file in place of
	using bfd_cache_lookup.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index ca0a483fda1..b3b6906d53b 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,8 @@
 2005-10-27  Alan Modra  <amodra@bigpond.net.au>
 
+	* bfdwin.c (bfd_get_file_window): Seek into file in place of
+	using bfd_cache_lookup.
+
 	* cache.c (BFD_CACHE_MAX_OPEN): Make private to this file.
 	(bfd_last_cache, bfd_cache_lookup, bfd_cache_lookup_worker): Likewise.
 	* libbfd-in.h (bfd_cache_lookup_worker, bfd_last_cache): Delete.
diff --git a/bfd/bfdwin.c b/bfd/bfdwin.c
index 1450ab0e969..7236906e28b 100644
--- a/bfd/bfdwin.c
+++ b/bfd/bfdwin.c
@@ -1,5 +1,6 @@
 /* Support for memory-mapped windows into a BFD.
-   Copyright 1995, 1996, 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright 1995, 1996, 2001, 2002, 2003, 2005
+   Free Software Foundation, Inc.
    Written by Cygnus Support.
 
 This file is part of BFD, the Binary File Descriptor library.
@@ -144,7 +145,6 @@ bfd_get_file_window (bfd *abfd,
       file_ptr file_offset, offset2;
       size_t real_size;
       int fd;
-      FILE *f;
 
       /* Find the real file and the real offset into it.  */
       while (abfd->my_archive != NULL)
@@ -152,10 +152,13 @@ bfd_get_file_window (bfd *abfd,
 	  offset += abfd->origin;
 	  abfd = abfd->my_archive;
 	}
-      f = bfd_cache_lookup (abfd);
-      if (f == NULL)
+
+      /* Seek into the file, to ensure it is open if cacheable.  */
+      if (abfd->iostream == NULL
+	  && (abfd->iovec == NULL
+	      || abfd->iovec->bseek (abfd, offset, SEEK_SET) != 0))
 	return FALSE;
-      fd = fileno (f);
+      fd = fileno ((FILE *) abfd->iostream);
 
       /* Compute offsets and size for mmap and for the user's data.  */
       offset2 = offset % pagesize;