Package ghidra.pcode.emu.jit

Record Class JitPassage.IndBranch

java.lang.Object
java.lang.Record
ghidra.pcode.emu.jit.JitPassage.IndBranch
Record Components:
from - see from()
flowCtx - the decode context after the branch is taken
All Implemented Interfaces:
JitPassage.Branch
Enclosing class:
JitPassage
public static record JitPassage.IndBranch(PcodeOp from, RegisterValue flowCtx) extends Record implements JitPassage.Branch
A branch to a dynamic address

When execution encounters this branch, the run method will set the emulator's program counter to the computed address and its context to flowCtx(), then return the appropriate entry point for further execution.

TODO: Some analysis may be possible to narrow the possible addresses to a known few and then treat this as several JitPassage.IntBranches; however, I worry this is too expensive for what it gets us. This will be necessary if we are to JIT, e.g., a switch table.

  • Constructor Details

    • IndBranch

      public IndBranch(PcodeOp from, RegisterValue flowCtx)
      Creates an instance of a IndBranch record class.
      Parameters:
      from - the value for the from record component
      flowCtx - the value for the flowCtx record component

  • Method Details

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • from

      public PcodeOp from()
      Returns the value of the from record component.
      Specified by:
      from in interface JitPassage.Branch
      Returns:
      the value of the from record component

    • flowCtx

      public RegisterValue flowCtx()
      Returns the value of the flowCtx record component.
      Returns:
      the value of the flowCtx record component