1 #include "StreamWriter.h" 2 #include "llvm/ADT/StringExtras.h" 3 #include "llvm/Support/Format.h" 4 #include <cctype> 5 6 using namespace llvm::support; 7 8 namespace llvm { 9 10 raw_ostream &operator<<(raw_ostream &OS, const HexNumber& Value) { 11 uint64_t N = Value.Value; 12 // Zero is a special case. 13 if (N == 0) 14 return OS << "0x0"; 15 16 char NumberBuffer[20]; 17 char *EndPtr = NumberBuffer + sizeof(NumberBuffer); 18 char *CurPtr = EndPtr; 19 20 while (N) { 21 uintptr_t X = N % 16; 22 *--CurPtr = (X < 10 ? '0' + X : 'A' + X - 10); 23 N /= 16; 24 } 25 26 OS << "0x"; 27 return OS.write(CurPtr, EndPtr - CurPtr); 28 } 29 30 void StreamWriter::printBinaryImpl(StringRef Label, StringRef Str, 31 ArrayRef<uint8_t> Data, bool Block) { 32 if (Data.size() > 16) 33 Block = true; 34 35 if (Block) { 36 startLine() << Label; 37 if (Str.size() > 0) 38 OS << ": " << Str; 39 OS << " (\n"; 40 for (size_t addr = 0, end = Data.size(); addr < end; addr += 16) { 41 startLine() << format(" %04" PRIX64 ": ", uint64_t(addr)); 42 // Dump line of hex. 43 for (size_t i = 0; i < 16; ++i) { 44 if (i != 0 && i % 4 == 0) 45 OS << ' '; 46 if (addr + i < end) 47 OS << hexdigit((Data[addr + i] >> 4) & 0xF, false) 48 << hexdigit(Data[addr + i] & 0xF, false); 49 else 50 OS << " "; 51 } 52 // Print ascii. 53 OS << " |"; 54 for (std::size_t i = 0; i < 16 && addr + i < end; ++i) { 55 if (std::isprint(Data[addr + i] & 0xFF)) 56 OS << Data[addr + i]; 57 else 58 OS << "."; 59 } 60 OS << "|\n"; 61 } 62 63 startLine() << ")\n"; 64 } else { 65 startLine() << Label << ":"; 66 if (Str.size() > 0) 67 OS << " " << Str; 68 OS << " ("; 69 for (size_t i = 0; i < Data.size(); ++i) { 70 if (i > 0) 71 OS << " "; 72 73 OS << format("%02X", static_cast<int>(Data[i])); 74 } 75 OS << ")\n"; 76 } 77 } 78 79 } // namespace llvm 80
