Package org.lwjgl.llvm

Interface LLVMOpInfoCallbackI

All Superinterfaces:
CallbackI, Pointer
All Known Implementing Classes:
LLVMOpInfoCallback
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface LLVMOpInfoCallbackI extends CallbackI
Instances of this interface may be passed to the CreateDisasm, CreateDisasmCPU and CreateDisasmCPUFeatures methods.

Type


 int (*invoke(long, long, long, long, long, int, long)) (
     void *DisInfo,
     uint64_t PC,
     uint64_t Offset,
     uint64_t OpSize,
     uint64_t InstSize,
     int TagType,
     void *TagBuf
 )

  • Nested Class Summary

    Nested classes/interfaces inherited from interface org.lwjgl.system.Pointer

    Pointer.Default

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final FFICIF
    CIF
     

    Fields inherited from interface org.lwjgl.system.Pointer

    BITS32, BITS64, CLONG_SHIFT, CLONG_SIZE, POINTER_SHIFT, POINTER_SIZE

  • Method Summary

    Modifier and Type
    Method
    Description
    default void
    callback(long ret, long args)
    The Java method that will be called from native code when the native callback function is invoked.
    default FFICIF
    getCallInterface()
    Returns the libffi Call Interface for this callback function.
    int
    invoke(long DisInfo, long PC, long Offset, long OpSize, long InstSize, int TagType, long TagBuf)
    The type for the operand information call back function.

    Methods inherited from interface org.lwjgl.system.CallbackI

    address

  • Field Details

    • CIF

      static final FFICIF CIF

  • Method Details

    • getCallInterface

      default FFICIF getCallInterface()
      Description copied from interface: CallbackI
      Returns the libffi Call Interface for this callback function. [INTERNAL API]
      Specified by:
      getCallInterface in interface CallbackI
      Returns:
      the CIF structure for this callback function

    • callback

      default void callback(long ret, long args)
      Description copied from interface: CallbackI
      The Java method that will be called from native code when the native callback function is invoked.
      Specified by:
      callback in interface CallbackI
      Parameters:
      ret - a pointer to the memory used for the function's return value.

      If the function is declared as returning void, then this value is garbage and should not be used.

      Otherwise, the callback must fill the object to which this points, following the same special promotion behavior as LibFFI.ffi_call(org.lwjgl.system.libffi.FFICIF, long, java.nio.ByteBuffer, org.lwjgl.PointerBuffer). That is, in most cases, ret points to an object of exactly the size of the type specified when CIF was constructed. However, integral types narrower than the system register size are widened. In these cases your program may assume that ret points to an ffi_arg object.

      args - a vector of pointers to memory holding the arguments to the function

    • invoke

      int invoke(long DisInfo, long PC, long Offset, long OpSize, long InstSize, int TagType, long TagBuf)
      The type for the operand information call back function.

      This is called to get the symbolic information for an operand of an instruction. Typically this is from the relocation information, symbol table, etc. That block of information is saved when the disassembler context is created and passed to the call back in the DisInfo parameter. The instruction containing operand is at the PC parameter. For some instruction sets, there can be more than one operand with symbolic information. To determine the symbolic operand information for each operand, the bytes for the specific operand in the instruction are specified by the Offset parameter and its byte width is the OpSize parameter. For instructions sets with fixed widths and one symbolic operand per instruction, the Offset parameter will be zero and InstSize parameter will be the instruction width. The information is returned in TagBuf and is Triple specific with its specific information defined by the value of TagType for that Triple. If symbolic information is returned the function returns 1, otherwise it returns 0.