Gedare Bloom wrote:
What is the use case and benefit of this libmm? Currently I see some
low-level changes, but what is the application or kernel level use case?
The immediate goal would be to support POSIX mprotect on BSPs that can
(and to ignore it on those that don't). Other benefits may come in the
future, as we can consider how real-time memory protection might be
employed by applications.
Currently we do not need this high-level interface, until mprotect shows up.
Dynamically loaded code could use it. The RTL code has support for
custom allocators to allow code to be loaded and then configured as
read-only/execute. There will be systems that will have requirements on
loaded code being protected in this way.
Chris
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