breakpad

Enum FrameTrust

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#[repr(C)]
pub enum FrameTrust {
    None = 0,
    Scan = 1,
    CFIScan = 2,
    FP = 3,
    CFI = 4,
    Prewalked = 5,
    Context = 6,
}
Expand description

Indicates how well the instruction pointer derived during stack walking is trusted. Since the stack walker can resort to stack scanning, it can wind up with dubious frames.

In rough order of “trust metric”.

Variants§

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None = 0

Unknown trust.

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Scan = 1

Scanned the stack, found this (lowest precision).

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CFIScan = 2

Found while scanning stack using call frame info.

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FP = 3

Derived from frame pointer.

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CFI = 4

Derived from call frame info.

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Prewalked = 5

Explicitly provided by some external stack walker.

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Context = 6

Given as instruction pointer in a context (highest precision).

Trait Implementations§

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impl Debug for FrameTrust

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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<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.