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Use constants for the opcodes when writing to stdout or stderr.
There still is no stdin operation.
Signed-off-by: Sean Cross <sean@xobs.io>
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This is an initial commit of network support for Xous.
On hardware, is backed by smoltcp running via a Xous server in a
separate process space.
This patch adds TCP and UDP client and server support as well as DNS
resolution support using the dns Xous server.
Signed-off-by: Sean Cross <sean@xobs.io>
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When updating memory flags via `update_memory_flags()`, ensure we
multiply the slice length by the element size to get the full memory
size.
Signed-off-by: Sean Cross <sean@xobs.io>
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The amount of memory allocated was multiplied by sizeof::<T>(), so the
amount of memory to be freed should also be multiplied by sizeof::<T>().
Signed-off-by: Sean Cross <sean@xobs.io>
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The `ret1` and `ret2` return values from lend operations are returned in
$a1 and $a2. This function incorrectly pulled them from $a6 and $a7,
causing them to always be `0`.
Signed-off-by: Sean Cross <sean@xobs.io>
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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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Xous has a concept of `services` that provide various features.
Processes may connect to these services by name or by address. Most
services require a name server in order to connect.
Add a file with the most common services, and provide a way to connect
to a service by querying the name server.
Signed-off-by: Sean Cross <sean@xobs.io>
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Xous has no C FFI. Instead, all FFI is done via syscalls that are
specified in Rust. Add these FFI calls to libstd, as well as some of the
currently-supported syscalls.
This enables Rust programs to interact with the Xous operating system
while avoiding adding an extra dependency to libstd.
Signed-off-by: Sean Cross <sean@xobs.io>
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