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139 commits

Author SHA1 Message Date
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
Sean Cross
b9d211af3b xous: begin adding a create_process() call 
This will mimic the `create_thread()` call and will obviate our own
process-creation code.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-26 10:54:54 +08:00
Sean Cross
cf992e9b09 kernel: hosted: properly shut down process 
This ensures a process with a server can be reused.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-23 17:57:35 +08:00
Sean Cross
0c2eb002ec kernel: hosted: use timeout for tcp reading 
Previously we were blocking, which used way too much processing power.
Instead, use a timeout of ~200 ms.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-23 17:56:39 +08:00
Sean Cross
ca73e8a8dd kernel: test: ensure environment variables are cleared 
These interfere with the test.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-23 17:55:48 +08:00
Sean Cross
8242f1b53f kernel: make server IDs 128 bits 
This makes server IDs a full 128 bits, and changes the argument to
CreateServer from 32-bits to 128-bits.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 17:28:18 +08:00
Sean Cross
68691a757d kernel: fix hanging shutdown thread and warnings 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 16:23:21 +08:00
Sean Cross
4130ce7bd1 kernel: fix threading and multiplexing issues 
Connections weren't getting multiplexed correctly. As a result, they
would respond with the wrong message to a given thread.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 15:51:51 +08:00
Sean Cross
e63e29916a kernel: syscall: move return_memory into its own function 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 10:18:40 +08:00
Sean Cross
d84fd73cfa kernel: rename mod files for IDE support 
If these files are called `mod.rs`, the IDE interface gets really
confusing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 10:14:43 +08:00
Sean Cross
cf571ad1ee kernel: more renaming context -> thread 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 10:13:24 +08:00
Sean Cross
e1bf9965c3 kernel: more renaming context -> thread 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 10:01:57 +08:00
Sean Cross
16d88d8cb5 kernel: syscall: move receive_message to its own function 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 09:57:06 +08:00
Sean Cross
549866bcd5 kernel: remove printlns, needless context queries 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 09:52:18 +08:00
Sean Cross
1a6b1160a3 syscall: move send_message into its own function 
This breaks up the giant `handle()` function.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-21 09:44:16 +08:00
Sean Cross
42f95e6488 threading: get basic threading tests working 
With this, we can now run two "threads" within one process.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-16 12:23:09 +08:00
Sean Cross
e2296fceac ThreadID: rename from CtxID 
Contexts are now renamed to Threads, which better reflects what they
actually are.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-16 11:04:31 +08:00
Sean Cross
11994d325b kernel: test: add test for server_client_same_process 
This is part of `multiple_contexts`, but it's nice to have an explicit
test for this functionality.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-16 10:22:26 +08:00
Sean Cross
1216963d24 rename contexts -> threads and spawn -> create 
This ensures we're more consistent in naming for these constructs.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-07-16 10:17:46 +08:00