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UnwindEntry

Struct UnwindEntry 

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#[repr(C)]
pub struct UnwindEntry { pub pc: u32, pub cfa_offset: i16, pub rbp_offset: i16, pub cfa_type: u8, pub rbp_type: u8, pub _pad: [u8; 2], }
Expand description

Compact unwind table entry for eBPF-side stack unwinding.

On x86_64, the return address is always at CFA-8, so we don’t store RA rule/offset. Using u32 for PC (file-relative addresses fit in 4GB) and i16 offsets gives us 12 bytes per entry.

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§pc: u32§cfa_offset: i16§rbp_offset: i16§cfa_type: u8§rbp_type: u8§_pad: [u8; 2]

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Trait Implementations§

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impl Clone for UnwindEntry

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fn clone(&self) -> UnwindEntry

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 PartialEq for UnwindEntry

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for UnwindEntry

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impl Eq for UnwindEntry

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impl StructuralPartialEq for UnwindEntry

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Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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.