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>
Highlights:
- new reserved IRQ and associated handler: VPPIEvent
- VPPI events are virtual interrupts we can forward to VMs; currently there is
only one event: virtual timer interrupt
- VGICMaintenance and VPPIEvent can both receive late interrupts from hardware,
which are now discarded instead of being delivered to current thread
- given only one possible VPPI event, simplifier tends to mop up more than it
should, making some proofs fragile w.r.t. adding a new VPPI event
- the order of some lemmas/specs needed shuffling, as now VCPU code needs some
interrupt code, which uses VCPU code
Session-qualified imports will be required for Isabelle2018 and help clarify
the structure of sessions in the build tree.
This commit mainly adds a new set of sessions for lib/, including a Lib
session that includes most theories in lib/ and a few separate sessions for
parts that have dependencies beyond CParser or are separate AFP sessions.
The group "lib" collects all lib/ sessions.
As a consequence, other theories should use lib/ theories by session name,
not by path, which in turns means spec and proof sessions should also refer
to each other by session name, not path, to avoid duplicate theory errors in
theory merges later.
Gerwin Klein
Rafal Kolanski
Rafal Kolanski
Miki Tanaka