mesonbuild: Recognise risc-v architecture

[kraj]

Signed-off-by: Khem Raj raj.khem@gmail.com

[rossburton]

Do those names match what platform.machine() gives under Python on target?

[rossburton]

Also to make the CI pass, you need to expand the documentation too.

[kraj]

@rossburton thanks, fixed now

[jpakkane]

Are you aware if these names are what all other build systems et al use for RISCV or are there some other terms as well?

[kraj]

riscv32 support is just being added to glibc so not many distros are out there yet and riscv64 is common yes.

[jpakkane]

And the glibc names are riscv32 and riscv64?

[jpakkane]

And to highlight this question from above:

Do those names match what platform.machine() gives under Python on target?

[kraj]

Here is output from python on qemuriscv64

root@qemuriscv64:~# python
Python 2.7.15 (default, Jul 21 2018, 18:17:04)
[GCC 8.1.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform
>>> print platform.machine()
riscv64
>>>

[jpakkane]

Great, thanks.