mips: update README.mips and NEWS for 3.9

Minor update to README.mips and NEWS section to state that MIPS64 support is
new in 3.9, as well as support for MIPS DSP ASE on MIPS32.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13661 a5019735-40e9-0310-863c-91ae7b9d1cf9

Author: petarj

NEWS

@@ -3,7 +3,10 @@ Release 3.9.0 (?? ?????? 201?)
 
 * ================== PLATFORM CHANGES =================
 
-  mips64-linux support
+* Support for MIPS64 LE and BE running Linux. Valgrind has been tested
+  on MIPS64 Debian Squeeze and Debian Wheezy distributions.
+
+* Support for MIPS DSP ASE on MIPS32 platforms.
 
   Support for s390x Decimal Floating Point instructions on hosts that
   have the DFP facility installed.

README.mips

@@ -1,8 +1,9 @@
 
 Supported platforms
 -------------------
-- MIPS32 and MIPS32r2 platforms are currently supported.
+- MIPS32 and MIPS64 platforms are currently supported.
 - Both little-endian and big-endian cores are supported.
+- MIPS DSP ASE on MIPS32 platforms is supported.
 
 
 Building V for MIPS
@@ -11,8 +12,9 @@ Building V for MIPS
 expects that native GCC is configured correctly and optimized for the platform.
 Yet, this may not be the case with some Debian distributions which configure
 GCC to compile to "mips1" by default. Depending on a target platform, using
-CFLAGS="-mips32r2" or CFLAGS="-mips32" will do the trick and compile Valgrind
-correctly.
+CFLAGS="-mips32r2", CFLAGS="-mips32" or CFLAGS="-mips64" or
+CFLAGS="-mips64 -mabi=64" will do the trick and compile Valgrind correctly.
+
 - Use of cross-toolchain is supported as well.
 - Example of configure line and additional configure options:
 
@@ -35,17 +37,18 @@ correctly.
  * --build=mips-linux is needed if you want to build it for MIPS32 on 64-bit
    MIPS system.
 
- * If you are compiling Valgrind with gcc version older then gcc (GCC) 4.5.1
-   you must specify CFLAGS="-mips32r2 -mplt", e.g.
+ * If you are compiling Valgrind for mips32 with gcc version older then
+   gcc (GCC) 4.5.1, you must specify CFLAGS="-mips32r2 -mplt", e.g.
+
    ./configure --prefix=<path_to_install_directory>
    CFLAGS="-mips32r2 -mplt"
 
 
 Limitations
 -----------
-- Currently, memcheck, massif, lackey, callgrind and none are supported.
-- Support for helgrind, drd and exp-ptrcheck is still incomplete.
-- Some Valgrind tests for MIPS expect mips32r2 architecture and will not
-compile when target is one of the older instruction sets.
+- Some gdb tests will fail when gdb (GDB) older than 7.5 is used and gdb is
+  not compiled with '--with-expat=yes'.
+- You can not compile tests for DSP ASE if you are using gcc (GCC) older
+  then 4.6.1 due to a bug in the toolchain.
 - Older GCC may have issues with some inline assembly blocks. Get a toolchain
-based on newer GCC versions, if possible.
+  based on newer GCC versions, if possible.