diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp | 61 |
1 files changed, 22 insertions, 39 deletions
diff --git a/contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp b/contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp index 4df09904c9f6..8bc4ca981614 100644 --- a/contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp +++ b/contrib/llvm/lib/Target/Sparc/Disassembler/SparcDisassembler.cpp @@ -16,7 +16,6 @@ #include "SparcSubtarget.h" #include "llvm/MC/MCDisassembler.h" #include "llvm/MC/MCFixedLenDisassembler.h" -#include "llvm/Support/MemoryObject.h" #include "llvm/Support/TargetRegistry.h" using namespace llvm; @@ -27,23 +26,17 @@ typedef MCDisassembler::DecodeStatus DecodeStatus; namespace { -/// SparcDisassembler - a disassembler class for Sparc. +/// A disassembler class for Sparc. class SparcDisassembler : public MCDisassembler { public: - /// Constructor - Initializes the disassembler. - /// - SparcDisassembler(const MCSubtargetInfo &STI, MCContext &Ctx) : - MCDisassembler(STI, Ctx) - {} + SparcDisassembler(const MCSubtargetInfo &STI, MCContext &Ctx) + : MCDisassembler(STI, Ctx) {} virtual ~SparcDisassembler() {} - /// getInstruction - See MCDisassembler. - DecodeStatus getInstruction(MCInst &instr, - uint64_t &size, - const MemoryObject ®ion, - uint64_t address, - raw_ostream &vStream, - raw_ostream &cStream) const override; + DecodeStatus getInstruction(MCInst &Instr, uint64_t &Size, + ArrayRef<uint8_t> Bytes, uint64_t Address, + raw_ostream &VStream, + raw_ostream &CStream) const override; }; } @@ -213,47 +206,37 @@ static DecodeStatus DecodeSWAP(MCInst &Inst, unsigned insn, uint64_t Address, #include "SparcGenDisassemblerTables.inc" -/// readInstruction - read four bytes from the MemoryObject -/// and return 32 bit word. -static DecodeStatus readInstruction32(const MemoryObject ®ion, - uint64_t address, - uint64_t &size, - uint32_t &insn) { - uint8_t Bytes[4]; - +/// Read four bytes from the ArrayRef and return 32 bit word. +static DecodeStatus readInstruction32(ArrayRef<uint8_t> Bytes, uint64_t Address, + uint64_t &Size, uint32_t &Insn) { // We want to read exactly 4 Bytes of data. - if (region.readBytes(address, 4, Bytes) == -1) { - size = 0; + if (Bytes.size() < 4) { + Size = 0; return MCDisassembler::Fail; } // Encoded as a big-endian 32-bit word in the stream. - insn = (Bytes[3] << 0) | - (Bytes[2] << 8) | - (Bytes[1] << 16) | - (Bytes[0] << 24); + Insn = + (Bytes[3] << 0) | (Bytes[2] << 8) | (Bytes[1] << 16) | (Bytes[0] << 24); return MCDisassembler::Success; } - -DecodeStatus -SparcDisassembler::getInstruction(MCInst &instr, - uint64_t &Size, - const MemoryObject &Region, - uint64_t Address, - raw_ostream &vStream, - raw_ostream &cStream) const { +DecodeStatus SparcDisassembler::getInstruction(MCInst &Instr, uint64_t &Size, + ArrayRef<uint8_t> Bytes, + uint64_t Address, + raw_ostream &VStream, + raw_ostream &CStream) const { uint32_t Insn; - DecodeStatus Result = readInstruction32(Region, Address, Size, Insn); + DecodeStatus Result = readInstruction32(Bytes, Address, Size, Insn); if (Result == MCDisassembler::Fail) return MCDisassembler::Fail; // Calling the auto-generated decoder function. - Result = decodeInstruction(DecoderTableSparc32, instr, Insn, Address, - this, STI); + Result = + decodeInstruction(DecoderTableSparc32, Instr, Insn, Address, this, STI); if (Result != MCDisassembler::Fail) { Size = 4; |