Re: Adding a new syscall to gnumach

[Samuel Thibault]

Hello,

Joan Lledó, le jeu. 27 mai 2021 21:33:20 +0200, a ecrit:
> In my work to extend the memory proxies implementation, I'm considering
> adding a new syscall which receives a memory object and returns whether is
> it a proxy or not. I need something like that from the arbiter to properly
> set ranges when creating a new proxy.
> 
> What are the steps to add a new syscall?, is there any docs? I wrote the
> function and declared its prototype in mach4.defs,

AIUI it's not a system call that you are talking about, but an RPC.

> but it's not enough.

What do you mean by "it's not enough"?  What does not work *exactly*?

Source-code-wise IIRC it's enough. But to get the function into
libmachuser you need to rebuild it against the new .defs file.

Samuel