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Add support for Condvar, Mutex, and RWLock. These are all backed by the
ticktimer server.
Signed-off-by: Sean Cross <sean@xobs.io>
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Add an implementation of thread local storage. This uses a container
that is pointed to by the otherwise-unsed `$tp` register. This container
is allocated on-demand, so threads that use no TLS will not allocate
this extra memory.
Signed-off-by: Sean Cross <sean@xobs.io>
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Add initial support for threads on Xous. This includes thread creation
and joining.
Signed-off-by: Sean Cross <sean@xobs.io>
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Add support for determining the current time. This connects to the
ticktimer server in order to get the system uptime.
Signed-off-by: Sean Cross <sean@xobs.io>
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Add support for stdout. This enables basic console printing via
`println!()`. Output is written to the log server.
Signed-off-by: Sean Cross <sean@xobs.io>
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Basic alloc support on Xous is supported by the `dlmalloc` crate. This
necessitates bumping the dlmalloc version to 0.2.4.
Signed-off-by: Sean Cross <sean@xobs.io>
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Add the basics to get the operating system running, including how to
exit the operating system.
Since Xous has no libc, there is no default entrypoint. Add a `_start`
entrypoint to the system-specific os module.
Signed-off-by: Sean Cross <sean@xobs.io>
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Add the `xous` target to libstd. Currently this defers everything to the
`unsupported` target.
Signed-off-by: Sean Cross <sean@xobs.io>
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