Commit Graph

4 Commits

Author SHA1 Message Date
Sam Leffler
05233af12c Add capscan suport.
Add support to output the contents of the top-level CNode of a CAmkES
service or KataOS application to the serial console. This is dependent
on kernel support that is enabled with CONFIG_PRINTING. Applications
must be running; otherwise there is no CSpace to dump.

Specific changes:
- add a "capscan" shell command
- add capscan method to each CAmkES interface
- add capscan_bundle method to the ProcessControlInterface
- add Camkes::capscan() to dump the top-level CNode
- add ProcessManager support to dump the CNode for a bundle

TODO: fix syscall wrapper error return

Change-Id: If6ca222decdb4c40a1d3a63e69792eb3feb30f6a
GitOrigin-RevId: 504c0182ccccf287b5d58cd8e33981c11d7539d7
2022-10-06 18:56:08 +00:00
Sam Leffler
69eefbd5c9 Change ProcessManager interfaces to return ProcessManagerError.
Propagate the ProcessManagerError enum through the
PackageManagementInterface and ProcessControlInterface so the client
has more information about why a request failed.

Change-Id: Ic2d8fcf1401edd6faff85fe821443f720d0b00c4
GitOrigin-RevId: 91d668fc56a352776803392d89aacc034cee1f1e
2022-10-06 18:01:42 +00:00
Sam Leffler
b9e209b008 Overhaul ProcessManager support.
- Split support into three levels:
  o kata_proc_manager::process_manager is a single-threaded implementation
    of ProcessManagerInterface and PackageManagerInterface that uses an
    abstract manager interface to carry out low-level work (used mainly
    to inject fakes for unit testing).
  o kata_proc_manager is a thread-safe wrapper around process_manager that
    has the manager interfaces bound to KataOS; this is the level at which
    we integrate with external components.
  o kata_proc_component is the top-level glue code for the ProcessManager
    camkes component; it has a pre_init function to setup rust support
    (logger, allocator, etc), a run function for the component's control
    block, and wrapper functions for the camkes ProcessControl and
    PackageManagement interfaces.
- Add install, uninstall, start, stop, and bundles shell commands for
  exercising ProcessControlInterface & PackageManagementInterface.

Specifics:
- Bundle id's are now treated internally as SmallString's with &str
  used for passing bundle id's through api's. The BundleId type is
  temporarily used for get_running_bundles() to return information (but
  see below about RawBundleIdData).
- ArrayVec's are replaced with a hashbrown::HashMap
- Bundle objects are Box'd instead of holding refs (now that we have an
  allocator); this eliminates lifetime constraints.
- The manager interface is Box'd to eliminate lifetime constraints.
- Purge ProcessManager::empty(), it's infeasible with the hashmap and
  is not needed with kata_proc_manager support for static decls.
- Add RawBundleIdData support for serialize+deserialize of BundleIdArray;
  no more leaking internal data types to client code.
- Remove bounds check on #bundles recorded; set a nominal capacity
  and fallback to dynamic allocation of the hashmap.
- Manually update ProcessManagerBindings.h (using cbindgen).

Change-Id: I08deaecc997ea96cb794808036540bedd58b3fa4
GitOrigin-RevId: 6e0826940b43b1295d39769b57812a9494b5a4cb
2022-10-06 17:59:52 +00:00
Sam Leffler
e35c69ae4c Add initial ProcessMaanger interfaces.
- new ProcessManager component (aka kata-process-manager)

NB: interfaces/ProcessManagerBindings.h is manually generated by cbindgen
for the moment; e.g.
  cargo install cbindgen;
  cd components/ProcessManager; cbindgen -c cbindgen.toml \
      -o ../../interfaces/ProcessManagerBindings.h kata-proc-common

Change-Id: I153c6b193c6ba8e376b87a2563dc8543753f0b42
GitOrigin-RevId: 18c354f14cbec6ce01c020136fe9aefd88248ee9
2022-10-06 17:56:26 +00:00