Enum probe_rs::debug::debug_step::SteppingMode

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pub enum SteppingMode {
    BreakPoint,
    StepInstruction,
    OverStatement,
    IntoStatement,
    OutOfStatement,
}
Expand description

Stepping granularity for stepping through a program during debug.

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BreakPoint

Special case, where we aren’t stepping, but we are trying to find the next valid breakpoint.

  • The validity of halt locations are defined as target instructions that live between the end of the prologue, and the start of the end sequence of a gimli::read::LineRow.
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StepInstruction

Advance one machine instruction at a time.

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OverStatement

Step Over the current statement, and halt at the start of the next statement.

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IntoStatement

Use best efforts to determine the location of any function calls in this statement, and step into them.

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OutOfStatement

Step to the calling statement, immediately after the current function returns.

Implementations§

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impl SteppingMode

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pub fn step(
&self,
core: &mut Core<'_>,
debug_info: &DebugInfo
) -> Result<(CoreStatus, u64), DebugError>

Determine the program counter location where the SteppingMode is aimed, and step to it. Return the new CoreStatus and program_counter value.

Implementation Notes for stepping at statement granularity:

  • If a hardware breakpoint is available, we will set it at the desired location, run to it, and release it.
  • If no hardware breakpoints are available, we will do repeated instruction steps until we reach the desired location.

Usage Note:

  • Currently, no special provision is made for the effect of interrupts that get triggered during stepping. The user must ensure that interrupts are disabled during stepping, or accept that stepping may be diverted by the interrupt processing on the core.

Trait Implementations§

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impl Clone for SteppingMode

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fn clone(&self) -> SteppingMode

Returns a copy 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 SteppingMode

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

Formats the value using the given formatter. Read more

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