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157 commits

Author SHA1 Message Date
Sean Cross
96c5739cdd kernel: fix remaining warnings 
This fixes all remaining warnings in the kernel. For now.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 01:17:35 +08:00
Sean Cross
bc92f4b042 kernel: services: fix build on riscv 
Somehow the build broke. Oops.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:36:39 +08:00
Sean Cross
25824df335 kernel: services: print fewer diagnostic messages 
These were printed a lot, which is not a thing we want right now.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:36:11 +08:00
Sean Cross
d87b59d47c kernel: riscv: print fewer debug messages 
The IRQ handler was very noisy, which generated a lot of spew.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:35:28 +08:00
Sean Cross
9af28d0a90 kernel: irq: fix build 
We were missing some packages when building on riscv.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:34:49 +08:00
Sean Cross
b78a71c495 kernel: print-panics: implement this feature in debug.rs 
With this feature enabled, claim the kernel UART for panic printing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:34:41 +08:00
Sean Cross
750f05c322 kernel: cargo: add print-panics feature 
With this feature enabled, the kernel will claim a UART and print panics
when they occur.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:33:30 +08:00
Sean Cross
8f70c0640c kernel: fix server indexing 
Server IDs were being improperly indexed, resulting in a
probably-invalid server index being returned.

Adjust these so that correct server indices are returned.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-29 22:10:24 +08:00
Sean Cross
dfd11f846d hosted: fix hosted builds 
We can now run `cargo xtask run` and it will do the right thing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-18 13:52:43 +08:00
Sean Cross
0ca7fe6f12 kernel/loader: fix build arguments 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-18 12:10:46 +08:00
Sean Cross
8920ab57cf xtask: remove loader, kernel from workspace to fix rebuilds 
These packages modify RUSTFLAGS, which causes some packages to be
rebuilt every time. Move them out of the workspace so as to ensure they
don't use the same `target` directory.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-18 10:51:29 +08:00
Sean Cross
bb17038bfe kernel: rename "xous" to "xous-kernel" in import 
Cargo appears to cache packages in the workspace when multiple packages
use the same crate. Unfortunately, Xous uses different features
depending on whether it's running in the kernel or in userspace.

Pull the kernel version of "xous" in under a different namespace in
order to force it to use a different build.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-17 18:37:40 +08:00
Sean Cross
cb959eb1cf kernel: fix interrupts 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 22:43:38 +08:00
Sean Cross
31f63c3f5f kernel: threads work now 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 22:05:06 +08:00
Sean Cross
1d23bc5aae kernel: first multiple threads working 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 21:17:48 +08:00
Sean Cross
a467d6fcc7 kernel: baremetal: 2nd process starts to run and crashes 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 16:06:38 +08:00
Sean Cross
75449f1deb kernel: get PID1 running, now working on PID2 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 00:35:37 +08:00
Sean Cross
10ecacd136 kernel: native: create process for initial processes 
These all need to bootstrap themselves.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 23:08:54 +08:00
Sean Cross
bef0168c20 kernel: more warning fixes 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 22:14:14 +08:00
Sean Cross
ba30b4919d kernel: remove more warnings 
Still haven't run it on real hardware, but this removes more warnings
from the system.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 21:52:28 +08:00
Sean Cross
0006d4d99c kernel: get building 
This is where the story really starts...

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 21:33:21 +08:00
Sean Cross
8ccecb6d99 kernel: down to 12 errors again 
Slowly chipping away at it.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 20:59:31 +08:00
Sean Cross
299b9fc298 kernel: start working on lifetime errors 
Only about 24 errors, so it's better than it could have been.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:45:02 +08:00
Sean Cross
8925964754 kernel: on to lifetime issues now! 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:38:15 +08:00
Sean Cross
30fef020f2 baremetal: just one more build error for this phase 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:27:43 +08:00
Sean Cross
e7a4927943 kernel: down to 7 compile errors 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:21:54 +08:00
Sean Cross
9bba5cbe4d server: pass memory buffer to server init 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:02:05 +08:00
Sean Cross
e48e1820f6 kernel: down to 12 errors 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 18:27:18 +08:00
Sean Cross
814be7cd84 kernel: down to 29 errors on bare metal 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 16:48:58 +08:00
Sean Cross
ebf568dadd baremetal: slowly whittling down the number of errors 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 16:14:34 +08:00
Sean Cross
fb6d42be55 kernel: begin re-porting xous to baremetal 
Only 68 errors to fix!

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-07 18:57:55 +08:00
Sean Cross
49083081c3 xous: replace processes-as-threads with baremetal check 
This gets it working on baremetal, and keeps processes-as-threads
available for running in hosted mode.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-06 23:25:28 +08:00
Sean Cross
bd99f33761 kernel: move debug-here to windows,unix 
This uses lazy_static, which only works on libstd.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-06 23:08:03 +08:00
Sean Cross
285b92401e mem: get tests working again on hosted 
This fixes all tests so they now work (and pass!) when running in a
hosted environment.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-03 18:15:56 +08:00
Sean Cross
ea3a473c9f reworking memory allocation 
The kernel should run in a `no_std` environment, which means it must
currently run without `alloc`. We have our own allocation methods when
running on baremetal hardware.

Begin the work to break out the allocation method so that it will work
on both desktop and baremetal environments.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-03 17:40:57 +08:00
Sean Cross
21aa67b748 workspace: remove workspace 
The kernel and userspace both need to use `xous`, but have different
requirements. If we use a workspace, then all instances of `xous-rs`
must have the same feature set.

This breaks them apart so the kernel can have one set of features and
programs can have another set.

As part of this change, tests are now integrated into the kernel, and a
new `create_process_as_thread()` and `wait_process_as_thread()` function
pair have been added.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-02 16:11:12 +08:00
Sean Cross
ef0ef924c8 fix more clippy warnings 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-29 22:48:48 +08:00
Sean Cross
869ebcff8b kernel: get tests and running working 
This fixes process creation so that it works for both tests and running
it as a program.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-29 22:37:03 +08:00
Sean Cross
039975323e tests: add tests package 
This package serves only to build tests for the kernel, because the
kernel wants to use a different mechanism for spawning processes.

Cargo doesn't support having `#[cfg(test)]` attributes on modules in
order to allow conditional compilation depending on whether we're
running a test or not. To work around this, `main.rs` is included in
another dummy crate.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-29 21:18:30 +08:00
Sean Cross
cece761ff1 xous: SID: convert to using newtype 
Rather than simply casting a tuple as a type, create a new struct SID.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-29 20:03:21 +08:00
Sean Cross
e7e8a2b748 kernel: get initial hosted non-test processes working 
This now has the ability to fork off processes.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-29 17:52:01 +08:00
Sean Cross
d9024076c6 kernel: beginnings of hosted mode 
This splits hosted mode out from tests so they can run standalone.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-28 18:41:49 +08:00
Sean Cross
fbcbc8dfa1 kernel: fix deadlock in threaded messages 
Due to an ordering issue, it was possible for thread message responses
to become deadlocked, wherein a message would get stored in the shared
table in between checking the table value and locking the network
connection.

This change makes a second check of the table after the network
connection is locked, in order to prevent this condition.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-28 18:12:52 +08:00
Sean Cross
f925011ea2 kernel: fix multiple contexts test 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-28 14:03:44 +08:00
Sean Cross
9af0fec049 kernel: convert multi-thread test (it's broken right now) 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-28 13:54:11 +08:00
Sean Cross
c40e0a138d kernel: convert scalar message test to use processes 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-28 13:40:02 +08:00
Sean Cross
1512d2138e kernel: tests: remove excess prints 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-28 13:35:15 +08:00
Sean Cross
19222c34a9 kernel: get shutdown and multi-clients working 
THis now has proper authentication for tests.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-28 13:28:14 +08:00
Sean Cross
7258fc83b7 kernel: rework process creation 
This now uses a system of access keys to associate processes with the
kernel.

This currently does not pass tests.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-27 21:44:50 +08:00
Sean Cross
ab7a56937c create_process: rename from spawn_process 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-27 09:30:43 +08:00