| |
| Supported platforms |
| ------------------- |
| - 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 |
| ------------------- |
| - Native build is available for all supported platforms. The build system |
| 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", 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: |
| |
| $ ./configure --host=mipsel-linux-gnu --prefix=<path_to_install_directory> |
| [--with-pagesize=<4|16|64>] |
| |
| * --host=mips-linux-gnu is necessary only if Valgrind is built on platform |
| other then MIPS, tools for building MIPS application have to be in PATH. |
| |
| * --with-pagesize option is used to set default PAGE SIZE. If option is not |
| used, PAGE SIZE is set to value default for platform on which Valgrind is |
| built on. Possible values are 4, 16 of 64 and represent size in kilobytes. |
| |
| * --host=mips-linux-gnu is necessary if you compile it with cross toolchain |
| compiler for big endian platform. |
| |
| * --host=mipsel-linux-gnu is necessary if you compile it with cross toolchain |
| compiler for little endian platform. |
| |
| * --build=mips-linux is needed if you want to build it for MIPS32 on 64-bit |
| MIPS system. |
| |
| * 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 |
| ----------- |
| - 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. |