feat: add program runtime crate#20
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This was referenced May 28, 2026
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What changed
Added the
solana-program-runtimecrate, an engine-shaped fork of Agave's cratepatched in workspace-wide via
[patch.crates-io].Why
The engine needs invocation state, CPI translation, and SBF VM setup that map
account regions directly into the VM rather than threading data through a
serialized buffer.
Closes #9.
Impact
logging, and program-cache primitives.
separate
MemoryRegions, not the serialized input buffer.solana-svm.Reviewer notes
The
serializationandvmerror remapping must stay in sync with thetransaction-context access-violation handler — see
solana/README.md(VM Account Mapping, Access-Violation Growth).
Follow-up
svmdrives this runtime upstack.