Arm-64:[PAC][WIP]Add auth-strip in prolog and epilog of jitted methods #110472
+46
−4
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
dotnet-issue-labeler
bot
added
the
area-CodeGen-coreclr
dotnet-policy-service
bot
added
the
community-contribution
|
Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch |
This was referenced Dec 6, 2024
Closed
|
Draft Pull Request was automatically closed for 30 days of inactivity. Please let us know if you'd like to reopen it. |
This was referenced Jan 6, 2025
Open
|
@SwapnilGaikwad - once you resolve the stack walking problem, can you also try something like this in a Foo() method? paciasp
stp fp, lr, [sp, #-0x10]!
mov x9, [sp] ; overwrite lr value with random content
...
...
xpaclri ; will fail and should give the call stack
... |
- Add support for 'pac_sign_lr' unwind code - Use authenticate instruciton instead of stripping PAC in epilog
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR updates prolog and epilog of all the jit-ed methods with instructions to sign and strip encryption of link register. It's currently work in progress.
@kunalspathak @janvorli @a74nh