Several parts of CRefine did not or should not depend on anything
C-related, but the import hierarchy (and theory content) did not reflect
this. Namely:
* Move_C and ArchMove_C were intended to hold items that could be moved
to Refine yet used `kernel_m` locale and imported the C spec.
* IsolatedThreadAction indicates how to rearrange statements in the
design spec and has nothing to do with the C spec or framework.
* Fastpath_C contained the design spec of the fastpath, the design spec
rewrite proofs, and the C refinement. Having to rebuild nearly all of
CRefine to work on rewrite proofs wasted time.
In the new import hierarchy:
* Move_C imports only Refine; ArchMove_C builds on Move_C
* IsolatedThreadAction imports only ArchMove_C
* The fastpath proofs are split into the spec definition (Fastpath_Defs)
and rewrite proofs (Fastpath_Equiv), which don't depend on anything
C-related, with their C refinement remaining in Fastpath_C.
While it is possible to separate out the fastpath definitions and rewire
proofs into a separate image or even move them to Refine, development
experience indicates keeping them alongside their C refinement remains
more convenient for the proof engineer involved.
Signed-off-by: Rafal Kolanski <rafal.kolanski@proofcraft.systems>
In Isabelle2020, when isabelle jedit is started without a session
context, e.g. `isabelle jedit -l ASpec`, theory imports with path
references cause the isabelle process to hang.
Since sessions now declare directories, Isabelle can find those files
without path reference and we therefore remove all such path references
from import statements. With this, `jedit` and `build` should work with
and without explicit session context as before.
Signed-off-by: Gerwin Klein <gerwin.klein@data61.csiro.au>
Move it to ArchMove_C for each architecture except RISCV64. On RISCV64
the definitions of obj_range has changed to use mask_range and hence the
lemma statement would look different.
Signed-off-by: Rafal Kolanski <rafal.kolanski@data61.csiro.au>
crefine/[ARCH]/Move.thy is replaced with crefine/Move_C.thy
(arch-generic), and crefine/[ARCH]/ArchMove_C.thy (arch-specific).
The only CRefine theory file that imports ArchMove_C is CLevityCatch,
and ArchMove_C imports Move_C which imports "Refine.Refine".
Lemmas found by looking through "FIXME: Move" comments have been added
to either Move_C or ArchMove_C depending on whether it is arch-generic
or arch-specific respectively.
Signed-off-by: Victor Phan <Victor.Phan@data61.csiro.au>
Rafal Kolanski
Gerwin Klein
Corey Lewis
Gerwin Klein
Rafal Kolanski
Victor Phan