Ensures the top of the loop is 16byte aligned to give Cortex's
prefetcher the best chance of loading the code.
If the address size is a power of two (We always do 64GB or 32GB VM atm)
then do the address size masking in one instruction instead of loading a
64bit constant first
Move some accessed constants to a literal pool at the end of the ASM
dispatcher.
Was accidently setting the buffer size then unmapping at that new size.
Make sure to unmap then resize.
Also cleans up which buffer is actually being touched here, only the
initial buffer ever changes here.
This requires implementing custom ASM dispatchers for the interpreter
side of things so it works correctly.
Allows all of our CPU backends to safely support signaling.
This is a bit of a nightmare change and requires rethinking logic about
debugging in some instances.
There are a significant number of changes here that I don't really
expect much review on.
Adds a bunch of new features and allows us to support GDB, IDA, and
Binja through their remote GDB debugging facilities.
Ghidra may also work but I haven't tried.
This work isn't quite yet complete to do correct thread stepping yet. We
need to add support for stopping threads using signals since threads may
be stuck inside of a syscall.
I have a hack locally that tries pausing all threads and times out after
a few seconds which works well enough for local testing.
Add and substract were the main culprits here.
We are trying to more towards a state where:
* Every IR op can expect it isn't given extra bits
on it's input
* Every IR op never sets more bits than it's size
* All unnessicary BFEs are never emitted
* ARM doesn't have to implement special 8 and 16bit versions of IR ops
All masking required to implement 8/16bit math on
arm should be explictly generated from Opcode decoder
The IR mostly worked this way already.
The one change I needed to make was in DCSE.
DCSE needs to add an explict truncate whenever an eliminated store was
doing an implict trunctate.
Any time a guest signal is blocked, add it to the guest signal mask.
This doesn't use a signal queue so repeat signals can end up being lost.
This is expected behaviour
This doesn't help with implementing the problem of unblocking signals
causing the masked signal to be resent
This syscall requires the application to have root and will fail with
-EPERM otherwise.
Implementing this as just an -EPERM return allows Crispy Doom to run
Bunch of templated instructions that didn't need to be templated.
Removes a bunch of duplicate entries.
Saves a couple hundred kilobytes on the final file
When RA made the source address register be the same register as the
destination register then we could have overwritten the address with the
move.
Use a temporary until we get RA constraints in place.
