RFR: JDK-8305118: Add RISC-V related content to building.md [v4]

[Erik Joelsson]

On Wed, 5 Apr 2023 13:43:11 GMT, Guoxiong Li <gli at openjdk.org> wrote:

>> Hi all,
>> 
>> This patch adds the RISC-V related content to `building.md`. But I didn't 
>> generate `building.html` locally, because I know the `pandoc` version 
>> may influencethe the output of `building.html` (Need help here).
>> 
>> I know there are many steps and subtle points about cross-compiling the 
>> external libraries. Considering the content length and the libraries are 
>> introduced at `External Library Requirements`, I give only one example 
>> instead of all of them.
>> 
>> And I tried to build it by using `devkits` and `Debian sysroots`. But it failed locally.
>> Maybe someone who has built successfully can tell me how to change the
>> document, which mainly adds the right name to their supported target table.
>> 
>> Thanks for the review and assist.
>> 
>> Best Regards,
>> -- Guoxiong
>
> Guoxiong Li has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Updated html

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/13223#pullrequestreview-1372991568