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HostCapabilitiesReport

detcore_model::host_capability

Struct HostCapabilitiesReport 

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pub struct HostCapabilitiesReport {
    pub schema: u64,
    pub host_capabilities: HostCapabilities,
    pub exact_branch_counter: CapabilityVerdict,
}
Expand description

Complete machine-readable output from hermit host-capabilities --json.

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§schema: u64§host_capabilities: HostCapabilities§exact_branch_counter: CapabilityVerdict

Whether this host’s retired-conditional-branch counter, which drives Hermit’s virtual clock on the ptrace and e9patch backends, passes Reverie’s performance-counter validation. When it is absent, hermit run --strict refuses those backends, and the E2E harness reports their cells HOST-INAPPLICABLE.

It is not one of HostCapability: only the hermit binary, which links Reverie’s ptrace backend, can run that validation, so no other process can probe it, and adding a member to that closed set changes every result and stress-series row. See https://github.com/rrnewton/hermit/issues/3794.

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impl HostCapabilitiesReport

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pub const SCHEMA: u64 = 2

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pub fn probe(exact_branch_counter: CapabilityVerdict) -> Self

Probe the closed set and record exact_branch_counter, which the caller probes because this crate cannot.

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pub fn validate(&self) -> Result<(), String>

Trait Implementations§

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impl Clone for HostCapabilitiesReport

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fn clone(&self) -> HostCapabilitiesReport

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for HostCapabilitiesReport

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for HostCapabilitiesReport

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Eq for HostCapabilitiesReport

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impl PartialEq for HostCapabilitiesReport

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fn eq(&self, other: &HostCapabilitiesReport) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl Serialize for HostCapabilitiesReport

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for HostCapabilitiesReport

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