RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.7/changes.html,v
retrieving revision 1.113
@@ -43,6 +43,16 @@
+ <li>On ARM, when compiling for ARMv6 (but not ARMv6-M), ARMv7-A,
+ ARMv7-R, or ARMv7-M, the default of the new option
+ <code>-munaligned-accesses</code> is on, which for some source
+ codes generates code that accesses memory on unaligned adresses.
+ This will require the OS of those systems to enable such accesses
+ (controlled by CP15 register c1, refer to ARM documentation).
+ Alternatively or for compatibility with OS versions that do not
+ enable unaligned accesses, all codes has to be compiled with
<li>Support on ARM for the legacy floating-point accelerator (FPA) and
the mixed-endian floating-point format that it used has been obsoleted.
The ports that still use this format have been obsoleted as well.