This is backwards-compatible with unsupported targets.
If an application is compiled using the K64F target without uVisor
(UVISOR_PRESENT not set or set to 0) then uvisor_init() will just be an
empty function that immediately returns.
This commit includes all sections that are just added to the linker
script. These changes are backwards-compatible, meaning that they will
not affect the existing code.
Targets that do not support uVisor will leave those sections empty.
uvisor-lib has an init function that must be called before the RTOS kernel
is initialized. Call uvisor_lib_init from software_init_hook to accomplish
this.
Wrap software_init_hook so that it can be used or extended from outside the
RTOS. This is desirable so that code can be added to the software_init_hook
without making the RTOS depend on new features or libraries.
Add the OsEventObserver mechanism. A client interested in receiving
notifications on certain OS events can register to receive notifications
with osRegisterForOsEvents. This is useful for clients like the secure
memory allocator, which observes thread switching events in order to swap
in and out different memory allocator objects.
Add the memory management code from uVisor to a shared location that is
suitable for both supported and unsupported use. To do this, we copy all
the RTX-specific files from the RTX folders in uVisor.
Note that the page allocator code is so identical between uVisor supported
and unsupported mode that we can copy the file as-is from uVisor for use on
unsupported targets. This commit performs that copying, to a file called
page_allocator.c_inc, which is included from unsupported_page_allocator.c
only for targets where uVisor is not present.
Freescale KSDK2 gpio_object.h pulled in Freescale libraries to inline
some GPIO operations.
The resulting namespace pollution (status_t) doesn't seem to be worth
the function call overhead. Hopefully making the base address array
non-automatic will offset that loss.
mbed TLS requires an entropy source, and this provides support for one through
the K64F RNG.
The macro MBEDTLS_ENTROPY_HARDWARE_ALT also added to target.json to enable use
of the entropy collector by mbed TLS.
"features" will make more sense in the context of the feature support
that we'll introduce later (related to #1878). Plus, "device_has" is
arguably a better description of the actual content of this key.
Alessandro Angelino
Niklas Hauser
Jaeden Amero
Niklas Hauser
Milosch Meriac
Martin Kojtal
Christopher Haster
Russ Butler
Sam Grove
Mihail Stoyanov
Rohit Grover
Kevin Bracey
svastm
Irit Arkin
Simon Butcher
Bogdan Marinescu
Mahesh Mahadevan
Bartosz Szczepanski
Vincent Coubard