e585b768da
Some userland application/program runtime/dynamic loaded need to know about the current ISA level to use the best runtime. While kernel doesn't provides this info. ELF_PLATFORM only provides some info about the CPU, with very few info, for example, the value is "mips" for both 24Kc and P6600. Currently ELF_BASE_PLATFORM is not used by MIPS (only by powerpc). So we cant set its value as: mips2, mips3, mips4, mips5, mips32, mips32r2, mips32r6 mips64, mips64r2, mips64r6 Then in userland, we can get it by: getauxval(AT_BASE_PLATFORM) The only problem is that it seems has different defination than ppc: on ppc, it is the mircoarchitecture while now we use it as ISA level on MIPS. Signed-off-by: YunQiang Su <syq@debian.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.