re PR target/78594 (Bug in November 11th, 2016 change to rs6000.md)

[thirdparty/gcc.git] / boehm-gc / doc / README

diff --git a/boehm-gc/doc/README b/boehm-gc/doc/README
index cbd432388f64126554fefa76c5aea311ad8a38da..eaba6e509d36612d6258fbd20f6f56f8b2fff744 100644 (file)
--- a/boehm-gc/doc/README
+++ b/boehm-gc/doc/README
@@ -1,14 +1,18 @@
 Copyright (c) 1988, 1989 Hans-J. Boehm, Alan J. Demers
 Copyright (c) 1991-1996 by Xerox Corporation.  All rights reserved.
 Copyright (c) 1996-1999 by Silicon Graphics.  All rights reserved.
-Copyright (c) 1999-2001 by Hewlett-Packard Company. All rights reserved.
+Copyright (c) 1999-2004 Hewlett-Packard Development Company, L.P.
 
 The file linux_threads.c is also
 Copyright (c) 1998 by Fergus Henderson.  All rights reserved.
 
-The files Makefile.am, and configure.in are
+The files Makefile.am, and configure.ac are
 Copyright (c) 2001 by Red Hat Inc. All rights reserved.
 
+Several files supporting GNU-style builds are copyrighted by the Free
+Software Foundation, and carry a different license from that given
+below.
+
 THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
 OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
 
@@ -18,7 +22,13 @@ Permission to modify the code and to distribute modified code is granted,
 provided the above notices are retained, and a notice that the code was
 modified is included with the above copyright notice.
 
-This is version 6.0alpha7 of a conservative garbage collector for C and C++.
+A few of the files needed to use the GNU-style build procedure come with
+slightly different licenses, though they are all similar in spirit.  A few
+are GPL'ed, but with an exception that should cover all uses in the
+collector.  (If you are concerned about such things, I recommend you look
+at the notice in config.guess or ltmain.sh.)
+
+This is version 6.6 of a conservative garbage collector for C and C++.
 
 You might find a more recent version of this at
 
@@ -219,10 +229,12 @@ and several of those are compatible with the collector.
 or equivalent is supplied.  Many of these have separate README.system
 files.
 
-  Dynamic libraries are completely supported only under SunOS
+  Dynamic libraries are completely supported only under SunOS/Solaris,
 (and even that support is not functional on the last Sun 3 release),
-Linux, IRIX 5&6, HP-PA, Win32 (not Win32S) and OSF/1 on DEC AXP machines.
-On other machines we recommend that you do one of the following:
+Linux, FreeBSD, NetBSD, IRIX 5&6, HP/UX, Win32 (not Win32S) and OSF/1
+on DEC AXP machines plus perhaps a few others listed near the top
+of dyn_load.c.  On other machines we recommend that you do one of
+the following:
 
   1) Add dynamic library support (and send us the code).
   2) Use static versions of the libraries.
@@ -236,6 +248,8 @@ On other machines we recommend that you do one of the following:
   In all cases we assume that pointer alignment is consistent with that
 enforced by the standard C compilers.  If you use a nonstandard compiler
 you may have to adjust the alignment parameters defined in gc_priv.h.
+Note that this may also be an issue with packed records/structs, if those
+enforce less alignment for pointers.
 
   A port to a machine that is not byte addressed, or does not use 32 bit
 or 64 bit addresses will require a major effort.  A port to plain MSDOS