Eleven calls from the stable-1.19.x headers plus krun_free_ctx, loaded
at runtime so a missing install names the remediation instead of failing
to link. Symbol lookup goes through a macro that carries the signature
from libkrun.h, every unsafe block states its invariant, and negative
returns map onto errno errors. The KVM probe ports ecr's open-then-
KVM_GET_API_VERSION check and reports KvmUnavailable with the full
remediation text.
ecrou's workspace starts from ecr's confinement-neutral half: image
reference resolution, the content cache with digest freshness, layer
extraction with whiteouts and deferred directory modes, provisioned
hot cells, and the progress/error/config plumbing. Adaptations: the
cache lives in ~/.cache/ecrou, the namespace-era error variants and
utils constants are gone, KvmUnavailable arrives ahead of its caller,
rootfs loses its exec() delegation, and uname(2) goes through libc
now that nix is no longer a dependency. The CLI crate is a stub until
its commit.
Valentin Haudiquet