Ago1.20.0 occlum #6
Open
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
… sgx tee tee libos occlum hooks all syscall by providing a special glibc or musl implementation to support java and c++ in sgx tee， but go's syscall is not dependent on glibc and musl，it was implemented by plan9 assembly in go runtime directly. we need to hook all syscalls by replacing syscall instruction and jump into occlum syscall process entry. Reviewed-by: lei.yul <[email protected]> Reviewed-by: denghui.ddh <[email protected]> Reviewed-by: qingfeng.yy <[email protected]>
go internal-abi defines x15 register as fixed zero value to initialize some stack variables in x64 architecture. but tee libos occlum could not guarantee to clear x15 when a syscall returns, so ago have to clear x15 when a occlum syscall returned to prevent x15 register from pollution. Reviewed-by: lei.yul <[email protected]> Reviewed-by: denghui.ddh <[email protected]> Reviewed-by: qingfeng.yy <[email protected]>
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Outdated suggestions cannot be applied.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.
No description provided.