diff options
Diffstat (limited to 'lib/Target/ARM/Disassembler/ARMDisassemblerCore.h')
-rw-r--r-- | lib/Target/ARM/Disassembler/ARMDisassemblerCore.h | 55 |
1 files changed, 9 insertions, 46 deletions
diff --git a/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h b/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h index 6d74251..3075230 100644 --- a/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h +++ b/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h @@ -13,8 +13,8 @@ // specifies the encoding used by the instruction, as well as a helper function // to convert the enums to printable char strings. // -// It also contains code to represent the concepts of Builder, Builder Factory, -// as well as the Algorithm to solve the problem of disassembling an ARM instr. +// It also contains code to represent the concepts of Builder and DisassembleFP +// to solve the problem of disassembling an ARM instr. // //===----------------------------------------------------------------------===// @@ -171,60 +171,23 @@ typedef ARMBasicMCBuilder *BO; typedef bool (*DisassembleFP)(MCInst &MI, unsigned Opcode, uint32_t insn, unsigned short NumOps, unsigned &NumOpsAdded, BO Builder); -/// ARMAlgorithm - ARMAlgorithm implements the ARM/Thumb disassembly by solving -/// the problem of building the MCOperands of an MCInst. Construction of -/// ARMAlgorithm requires passing in a function pointer with the DisassembleFP -/// data type. -class ARMAlgorithm { -public: - /// GetInstance - GetInstance returns an instance of ARMAlgorithm given the - /// encoding Format. API clients should not free up the returned instance. - static ARMAlgorithm *GetInstance(ARMFormat Format); - - /// DoCleanup - DoCleanup is meant to be called upon exit as an exit handler. - static void DoCleanup(); - - /// Return true if this algorithm successfully disassembles the instruction. - /// NumOpsAdded is updated to reflect the number of operands added by the - /// algorithm. NumOpsAdded may be less than NumOps, in which case, there are - /// operands unaccounted for which need to be dealt with by the API client. - bool Solve(MCInst &MI, unsigned Opcode, uint32_t insn, unsigned short NumOps, - unsigned &NumOpsAdded, BO Builder) const { - if (Disassemble == NULL) - return false; - - return (*Disassemble)(MI, Opcode, insn, NumOps, NumOpsAdded, Builder); - } - -private: - ARMAlgorithm(DisassembleFP fp) : Disassemble(fp) {} - ARMAlgorithm(ARMAlgorithm &AA) : Disassemble(AA.Disassemble) {} - - virtual ~ARMAlgorithm() {} - - DisassembleFP Disassemble; -}; - /// ARMBasicMCBuilder - ARMBasicMCBuilder represents an ARM MCInst builder that /// knows how to build up the MCOperand list. class ARMBasicMCBuilder { unsigned Opcode; ARMFormat Format; unsigned short NumOps; - const ARMAlgorithm &Algo; + DisassembleFP Disasm; Session *SP; public: ARMBasicMCBuilder(ARMBasicMCBuilder &B) - : Opcode(B.Opcode), Format(B.Format), NumOps(B.NumOps), Algo(B.Algo), + : Opcode(B.Opcode), Format(B.Format), NumOps(B.NumOps), Disasm(B.Disasm), SP(B.SP) {} - /// Opcode, Format, NumOperands, and Algo make an ARM Basic MCBuilder. - ARMBasicMCBuilder(unsigned opc, ARMFormat format, unsigned short num, - const ARMAlgorithm &algo) - : Opcode(opc), Format(format), NumOps(num), Algo(algo), SP(0) - {} + /// Opcode, Format, and NumOperands make up an ARM Basic MCBuilder. + ARMBasicMCBuilder(unsigned opc, ARMFormat format, unsigned short num); virtual ~ARMBasicMCBuilder() {} @@ -256,9 +219,9 @@ public: /// BuildIt - BuildIt performs the build step for this ARM Basic MC Builder. /// The general idea is to set the Opcode for the MCInst, followed by adding /// the appropriate MCOperands to the MCInst. ARM Basic MC Builder delegates - /// to the Algo (ARM Disassemble Algorithm) object to perform Format-specific - /// disassembly, followed by class method TryPredicateAndSBitModifier() to do - /// PredicateOperand and OptionalDefOperand which follow the Dst/Src Operands. + /// to the Format-specific disassemble function for disassembly, followed by + /// TryPredicateAndSBitModifier() for PredicateOperand and OptionalDefOperand + /// which follow the Dst/Src Operands. virtual bool BuildIt(MCInst &MI, uint32_t insn); /// RunBuildAfterHook - RunBuildAfterHook performs operations deemed necessary |