1 2Supported platforms 3------------------- 4- MIPS32 and MIPS64 platforms are currently supported. 5- Both little-endian and big-endian cores are supported. 6- MIPS DSP ASE on MIPS32 platforms is supported. 7 8 9Building V for MIPS 10------------------- 11- Native build is available for all supported platforms. The build system 12expects that native GCC is configured correctly and optimized for the platform. 13Yet, this may not be the case with some Debian distributions which configure 14GCC to compile to "mips1" by default. Depending on a target platform, using 15CFLAGS="-mips32r2", CFLAGS="-mips32" or CFLAGS="-mips64" or 16CFLAGS="-mips64 -mabi=64" will do the trick and compile Valgrind correctly. 17 18- Use of cross-toolchain is supported as well. 19- Example of configure line and additional configure options: 20 21 $ ./configure --host=mipsel-linux-gnu --prefix=<path_to_install_directory> 22 [--with-pagesize=<4|16|64>] 23 24 * --host=mips-linux-gnu is necessary only if Valgrind is built on platform 25 other then MIPS, tools for building MIPS application have to be in PATH. 26 27 * --with-pagesize option is used to set default PAGE SIZE. If option is not 28 used, PAGE SIZE is set to value default for platform on which Valgrind is 29 built on. Possible values are 4, 16 of 64 and represent size in kilobytes. 30 31 * --host=mips-linux-gnu is necessary if you compile it with cross toolchain 32 compiler for big endian platform. 33 34 * --host=mipsel-linux-gnu is necessary if you compile it with cross toolchain 35 compiler for little endian platform. 36 37 * --build=mips-linux is needed if you want to build it for MIPS32 on 64-bit 38 MIPS system. 39 40 * If you are compiling Valgrind for mips32 with gcc version older then 41 gcc (GCC) 4.5.1, you must specify CFLAGS="-mips32r2 -mplt", e.g. 42 43 ./configure --prefix=<path_to_install_directory> 44 CFLAGS="-mips32r2 -mplt" 45 46 47Limitations 48----------- 49- Some gdb tests will fail when gdb (GDB) older than 7.5 is used and gdb is 50 not compiled with '--with-expat=yes'. 51- You can not compile tests for DSP ASE if you are using gcc (GCC) older 52 then 4.6.1 due to a bug in the toolchain. 53- Older GCC may have issues with some inline assembly blocks. Get a toolchain 54 based on newer GCC versions, if possible. 55