ARMWinEHPrinter.cpp revision 37ed9c199ca639565f6ce88105f9e39e898d82d0
1c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines//===-- ARMWinEHPrinter.cpp - Windows on ARM EH Data Printer ----*- C++ -*-===// 2c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 3c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// The LLVM Compiler Infrastructure 4c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 5c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// This file is distributed under the University of Illinois Open Source 6c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// License. See LICENSE.TXT for details. 7c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 8c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines//===----------------------------------------------------------------------===// 9c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 10c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// Windows on ARM uses a series of serialised data structures (RuntimeFunction) 11c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// to create a table of information for unwinding. In order to conserve space, 12c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// there are two different ways that this data is represented. 13c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 14c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// For functions with canonical forms for the prologue and epilogue, the data 15c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// can be stored in a "packed" form. In this case, the data is packed into the 16c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// RuntimeFunction's remaining 30-bits and can fully describe the entire frame. 17c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 18c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// +---------------------------------------+ 19c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// | Function Entry Address | 20c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// +---------------------------------------+ 21c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// | Packed Form Data | 22c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// +---------------------------------------+ 23c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 24c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// This layout is parsed by Decoder::dumpPackedEntry. No unwind bytecode is 25c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// associated with such a frame as they can be derived from the provided data. 26c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// The decoder does not synthesize this data as it is unnecessary for the 27c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// purposes of validation, with the synthesis being required only by a proper 28c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// unwinder. 29c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 30c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// For functions that are large or do not match canonical forms, the data is 31c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// split up into two portions, with the actual data residing in the "exception 32c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// data" table (.xdata) with a reference to the entry from the "procedure data" 33c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// (.pdata) entry. 34c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 35c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// The exception data contains information about the frame setup, all of the 36c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// epilouge scopes (for functions for which there are multiple exit points) and 37c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// the associated exception handler. Additionally, the entry contains byte-code 38c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// describing how to unwind the function (c.f. Decoder::decodeOpcodes). 39c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 40c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// +---------------------------------------+ 41c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// | Function Entry Address | 42c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// +---------------------------------------+ 43c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// | Exception Data Entry Address | 44c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// +---------------------------------------+ 45c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 46c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// This layout is parsed by Decoder::dumpUnpackedEntry. Such an entry must 47c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// first resolve the exception data entry address. This structure 48c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// (ExceptionDataRecord) has a variable sized header 49c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// (c.f. ARM::WinEH::HeaderWords) and encodes most of the same information as 50c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// the packed form. However, because this information is insufficient to 51c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// synthesize the unwinding, there are associated unwinding bytecode which make 52c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// up the bulk of the Decoder. 53c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 54c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// The decoder itself is table-driven, using the first byte to determine the 55c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// opcode and dispatching to the associated printing routine. The bytecode 56c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// itself is a variable length instruction encoding that can fully describe the 57c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// state of the stack and the necessary operations for unwinding to the 58c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// beginning of the frame. 59c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// 60c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// The byte-code maintains a 1-1 instruction mapping, indicating both the width 61c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// of the instruction (Thumb2 instructions are variable length, 16 or 32 bits 62c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// wide) allowing the program to unwind from any point in the prologue, body, or 63c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// epilogue of the function. 64c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 65c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines#include "ARMWinEHPrinter.h" 66c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines#include "Error.h" 67c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines#include "llvm/ADT/StringExtras.h" 68c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines#include "llvm/ADT/STLExtras.h" 69c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines#include "llvm/Support/ARMWinEH.h" 70c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines#include "llvm/Support/Format.h" 71c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 72c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesusing namespace llvm; 73c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesusing namespace llvm::object; 74c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesusing namespace llvm::support; 75c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 76c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesnamespace llvm { 77c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesraw_ostream &operator<<(raw_ostream &OS, const ARM::WinEH::ReturnType &RT) { 78c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines switch (RT) { 79c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines case ARM::WinEH::ReturnType::RT_POP: 80c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << "pop {pc}"; 81c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines break; 82c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines case ARM::WinEH::ReturnType::RT_B: 83c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << "b target"; 84c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines break; 85c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines case ARM::WinEH::ReturnType::RT_BW: 86c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << "b.w target"; 87c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines break; 88c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines case ARM::WinEH::ReturnType::RT_NoEpilogue: 89c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << "(no epilogue)"; 90c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines break; 91c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 92c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return OS; 93c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 94c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 95c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 96c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesstatic std::string formatSymbol(StringRef Name, uint64_t Address, 97c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t Offset = 0) { 98c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines std::string Buffer; 99c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines raw_string_ostream OS(Buffer); 100c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 101c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!Name.empty()) 102c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << Name << " "; 103c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 104c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Offset) 105c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << format("+0x%X (0x%" PRIX64 ")", Offset, Address); 106c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines else if (!Name.empty()) 107c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << format("(0x%" PRIX64 ")", Address); 108c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines else 109c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << format("0x%" PRIX64, Address); 110c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 111c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return OS.str(); 112c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 113c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 114c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesnamespace llvm { 115c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesnamespace ARM { 116c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesnamespace WinEH { 117c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesconst size_t Decoder::PDataEntrySize = sizeof(RuntimeFunction); 118c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 119c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines// TODO name the uops more appropriately 120c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesconst Decoder::RingEntry Decoder::Ring[] = { 121c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0x80, 0x00, &Decoder::opcode_0xxxxxxx }, // UOP_STACK_FREE (16-bit) 122c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xc0, 0x80, &Decoder::opcode_10Lxxxxx }, // UOP_POP (32-bit) 123c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xf0, 0xc0, &Decoder::opcode_1100xxxx }, // UOP_STACK_SAVE (16-bit) 124c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xf8, 0xd0, &Decoder::opcode_11010Lxx }, // UOP_POP (16-bit) 125c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xf8, 0xd8, &Decoder::opcode_11011Lxx }, // UOP_POP (32-bit) 126c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xf8, 0xe0, &Decoder::opcode_11100xxx }, // UOP_VPOP (32-bit) 127c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xfc, 0xe8, &Decoder::opcode_111010xx }, // UOP_STACK_FREE (32-bit) 128c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xfe, 0xec, &Decoder::opcode_1110110L }, // UOP_POP (16-bit) 129c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xee, &Decoder::opcode_11101110 }, // UOP_MICROSOFT_SPECIFIC (16-bit) 130c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines // UOP_PUSH_MACHINE_FRAME 131c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines // UOP_PUSH_CONTEXT 132c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines // UOP_PUSH_TRAP_FRAME 133c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines // UOP_REDZONE_RESTORE_LR 134c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xef, &Decoder::opcode_11101111 }, // UOP_LDRPC_POSTINC (32-bit) 135c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xf5, &Decoder::opcode_11110101 }, // UOP_VPOP (32-bit) 136c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xf6, &Decoder::opcode_11110110 }, // UOP_VPOP (32-bit) 137c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xf7, &Decoder::opcode_11110111 }, // UOP_STACK_RESTORE (16-bit) 138c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xf8, &Decoder::opcode_11111000 }, // UOP_STACK_RESTORE (16-bit) 139c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xf9, &Decoder::opcode_11111001 }, // UOP_STACK_RESTORE (32-bit) 140c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xfa, &Decoder::opcode_11111010 }, // UOP_STACK_RESTORE (32-bit) 141c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xfb, &Decoder::opcode_11111011 }, // UOP_NOP (16-bit) 142c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xfc, &Decoder::opcode_11111100 }, // UOP_NOP (32-bit) 143c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xfd, &Decoder::opcode_11111101 }, // UOP_NOP (16-bit) / END 144c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xfe, &Decoder::opcode_11111110 }, // UOP_NOP (32-bit) / END 145c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines { 0xff, 0xff, &Decoder::opcode_11111111 }, // UOP_END 146c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines}; 147c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 148c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesvoid Decoder::printRegisters(const std::pair<uint16_t, uint32_t> &RegisterMask) { 149c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines static const char * const GPRRegisterNames[16] = { 150c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", 151c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines "r11", "ip", "sp", "lr", "pc", 152c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines }; 153c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 154c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const uint16_t GPRMask = std::get<0>(RegisterMask); 155c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const uint16_t VFPMask = std::get<1>(RegisterMask); 156c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 157c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '{'; 158c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines bool Comma = false; 159c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (unsigned RI = 0, RE = 11; RI < RE; ++RI) { 160c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (GPRMask & (1 << RI)) { 161c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Comma) 162c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << ", "; 163c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << GPRRegisterNames[RI]; 164c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Comma = true; 165c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 166c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 167c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (unsigned RI = 0, RE = 32; RI < RE; ++RI) { 168c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (VFPMask & (1 << RI)) { 169c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Comma) 170c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << ", "; 171c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << "d" << unsigned(RI); 172c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Comma = true; 173c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 174c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 175c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (unsigned RI = 11, RE = 16; RI < RE; ++RI) { 176c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (GPRMask & (1 << RI)) { 177c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Comma) 178c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << ", "; 179c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << GPRRegisterNames[RI]; 180c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Comma = true; 181c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 182c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 183c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '}'; 184c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 185c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 186c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen HinesErrorOr<object::SectionRef> 187c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen HinesDecoder::getSectionContaining(const COFFObjectFile &COFF, uint64_t VA) { 188c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (const auto &Section : COFF.sections()) { 18937ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines uint64_t Address = Section.getAddress(); 19037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines uint64_t Size = Section.getSize(); 191c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 192c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (VA >= Address && (VA - Address) <= Size) 193c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return Section; 194c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 195c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return readobj_error::unknown_symbol; 196c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 197c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 198c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen HinesErrorOr<object::SymbolRef> Decoder::getSymbol(const COFFObjectFile &COFF, 199c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t VA, bool FunctionOnly) { 200c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (const auto &Symbol : COFF.symbols()) { 201c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (FunctionOnly) { 202c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SymbolRef::Type Type; 203c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (std::error_code EC = Symbol.getType(Type)) 204c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return EC; 205c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Type != SymbolRef::ST_Function) 206c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines continue; 207c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 208c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 209c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t Address; 210c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (std::error_code EC = Symbol.getAddress(Address)) 211c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return EC; 212c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Address == VA) 213c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return Symbol; 214c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 215c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return readobj_error::unknown_symbol; 216c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 217c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 218c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen HinesErrorOr<SymbolRef> Decoder::getRelocatedSymbol(const COFFObjectFile &, 219c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const SectionRef &Section, 220c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t Offset) { 221c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (const auto &Relocation : Section.relocations()) { 222c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t RelocationOffset; 223c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (auto Error = Relocation.getOffset(RelocationOffset)) 224c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return Error; 225c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (RelocationOffset == Offset) 226c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return *Relocation.getSymbol(); 227c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 228c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return readobj_error::unknown_symbol; 229c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 230c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 23137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_0xxxxxxx(const uint8_t *OC, unsigned &Offset, 232c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 233c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint8_t Imm = OC[Offset] & 0x7f; 234c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; %s sp, #(%u * 4)\n", 235c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset], 236c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), 237c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Imm); 238c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 239c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 240c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 241c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 24237ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_10Lxxxxx(const uint8_t *OC, unsigned &Offset, 243c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 244c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Link = (OC[Offset] & 0x20) >> 5; 245c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint16_t RegisterMask = (Link << (Prologue ? 14 : 15)) 246c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | ((OC[Offset + 0] & 0x1f) << 8) 247c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | ((OC[Offset + 1] & 0xff) << 0); 248c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines assert((~RegisterMask & (1 << 13)) && "sp must not be set"); 249c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines assert((~RegisterMask & (1 << (Prologue ? 15 : 14))) && "pc must not be set"); 250c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 251c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s.w ", 252c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1], 253c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Prologue ? "push" : "pop"); 254c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines printRegisters(std::make_pair(RegisterMask, 0)); 255c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '\n'; 256c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 257c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset; 258c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 259c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 260c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 26137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_1100xxxx(const uint8_t *OC, unsigned &Offset, 262c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 263c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Prologue) 264c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; mov r%u, sp\n", 265c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset], OC[Offset] & 0xf); 266c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines else 267c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; mov sp, r%u\n", 268c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset], OC[Offset] & 0xf); 269c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 270c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 271c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 272c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 27337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11010Lxx(const uint8_t *OC, unsigned &Offset, 274c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 275c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Link = (OC[Offset] & 0x4) >> 3; 276c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Count = (OC[Offset] & 0x3); 277c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 278c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint16_t GPRMask = (Link << (Prologue ? 14 : 15)) 279c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | (((1 << (Count + 1)) - 1) << 4); 280c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 281c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; %s ", OC[Offset], 282c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Prologue ? "push" : "pop"); 283c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines printRegisters(std::make_pair(GPRMask, 0)); 284c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '\n'; 285c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 286c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 287c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 288c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 289c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 29037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11011Lxx(const uint8_t *OC, unsigned &Offset, 291c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 292c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Link = (OC[Offset] & 0x4) >> 2; 293c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Count = (OC[Offset] & 0x3) + 4; 294c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 295c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint16_t GPRMask = (Link << (Prologue ? 14 : 15)) 296c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | (((1 << (Count + 1)) - 1) << 4); 297c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 298c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; %s.w ", OC[Offset], 299c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Prologue ? "push" : "pop"); 300c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines printRegisters(std::make_pair(GPRMask, 0)); 301c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '\n'; 302c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 303c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 304c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 305c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 306c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 30737ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11100xxx(const uint8_t *OC, unsigned &Offset, 308c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 309c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned High = (OC[Offset] & 0x7); 310c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint32_t VFPMask = (((1 << (High + 1)) - 1) << 8); 311c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 312c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; %s ", OC[Offset], 313c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Prologue ? "vpush" : "vpop"); 314c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines printRegisters(std::make_pair(0, VFPMask)); 315c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '\n'; 316c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 317c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 318c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 319c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 320c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 32137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_111010xx(const uint8_t *OC, unsigned &Offset, 322c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 323c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint16_t Imm = ((OC[Offset + 0] & 0x03) << 8) | ((OC[Offset + 1] & 0xff) << 0); 324c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 325c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s.w sp, #(%u * 4)\n", 326c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1], 327c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), 328c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Imm); 329c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 330c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset; 331c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 332c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 333c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 33437ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_1110110L(const uint8_t *OC, unsigned &Offset, 335c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 336c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint8_t GPRMask = ((OC[Offset + 0] & 0x01) << (Prologue ? 14 : 15)) 337c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | ((OC[Offset + 1] & 0xff) << 0); 338c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 339c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s ", OC[Offset + 0], 340c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 1], Prologue ? "push" : "pop"); 341c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines printRegisters(std::make_pair(GPRMask, 0)); 342c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '\n'; 343c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 344c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset; 345c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 346c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 347c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 34837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11101110(const uint8_t *OC, unsigned &Offset, 349c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 350c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines assert(!Prologue && "may not be used in prologue"); 351c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 352c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (OC[Offset + 1] & 0xf0) 353c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x 0x%02x ; reserved\n", 354c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1]); 355c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines else 356c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() 357c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines << format("0x%02x 0x%02x ; microsoft-specific (type: %u)\n", 358c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 1] & 0x0f); 359c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 360c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset; 361c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 362c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 363c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 36437ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11101111(const uint8_t *OC, unsigned &Offset, 365c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 366c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines assert(!Prologue && "may not be used in prologue"); 367c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 368c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (OC[Offset + 1] & 0xf0) 369c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x 0x%02x ; reserved\n", 370c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1]); 371c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines else 372c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() 373c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines << format("0x%02x 0x%02x ; ldr.w lr, [sp], #%u\n", 374c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 1] << 2); 375c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 376c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset; 377c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 378c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 379c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 38037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11110101(const uint8_t *OC, unsigned &Offset, 381c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 382c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Start = (OC[Offset + 1] & 0xf0) >> 4; 383c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned End = (OC[Offset + 1] & 0x0f) >> 0; 384c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint32_t VFPMask = ((1 << (End - Start)) - 1) << Start; 385c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 386c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s ", OC[Offset + 0], 387c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 1], Prologue ? "vpush" : "vpop"); 388c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines printRegisters(std::make_pair(0, VFPMask)); 389c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '\n'; 390c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 391c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset; 392c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 393c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 394c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 39537ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11110110(const uint8_t *OC, unsigned &Offset, 396c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 397c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Start = (OC[Offset + 1] & 0xf0) >> 4; 398c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned End = (OC[Offset + 1] & 0x0f) >> 0; 399c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint32_t VFPMask = ((1 << (End - Start)) - 1) << 16; 400c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 401c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s ", OC[Offset + 0], 402c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 1], Prologue ? "vpush" : "vpop"); 403c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines printRegisters(std::make_pair(0, VFPMask)); 404c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '\n'; 405c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 406c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset; 407c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 408c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 409c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 41037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11110111(const uint8_t *OC, unsigned &Offset, 411c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 412c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint32_t Imm = (OC[Offset + 1] << 8) | (OC[Offset + 2] << 0); 413c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 414c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x 0x%02x 0x%02x ; %s sp, sp, #(%u * 4)\n", 415c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 2], 416c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), 417c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Imm); 418c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 419c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset, ++Offset; 420c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 421c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 422c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 42337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11111000(const uint8_t *OC, unsigned &Offset, 424c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 425c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint32_t Imm = (OC[Offset + 1] << 16) 426c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | (OC[Offset + 2] << 8) 427c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | (OC[Offset + 3] << 0); 428c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 429c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() 430c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines << format("0x%02x 0x%02x 0x%02x 0x%02x ; %s sp, sp, #(%u * 4)\n", 431c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 2], OC[Offset + 3], 432c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), Imm); 433c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 434c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset, ++Offset, ++Offset; 435c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 436c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 437c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 43837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11111001(const uint8_t *OC, unsigned &Offset, 439c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 440c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint32_t Imm = (OC[Offset + 1] << 8) | (OC[Offset + 2] << 0); 441c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 442c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() 443c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines << format("0x%02x 0x%02x 0x%02x ; %s.w sp, sp, #(%u * 4)\n", 444c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 2], 445c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), Imm); 446c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 447c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset, ++Offset; 448c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 449c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 450c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 45137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11111010(const uint8_t *OC, unsigned &Offset, 452c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 453c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint32_t Imm = (OC[Offset + 1] << 16) 454c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | (OC[Offset + 2] << 8) 455c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines | (OC[Offset + 3] << 0); 456c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 457c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() 458c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines << format("0x%02x 0x%02x 0x%02x 0x%02x ; %s.w sp, sp, #(%u * 4)\n", 459c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 2], OC[Offset + 3], 460c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), Imm); 461c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 462c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset, ++Offset, ++Offset, ++Offset; 463c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 464c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 465c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 46637ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11111011(const uint8_t *OC, unsigned &Offset, 467c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 468c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; nop\n", OC[Offset]); 469c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 470c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 471c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 472c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 47337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11111100(const uint8_t *OC, unsigned &Offset, 474c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 475c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; nop.w\n", OC[Offset]); 476c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 477c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 478c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 479c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 48037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11111101(const uint8_t *OC, unsigned &Offset, 481c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 482c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; b\n", OC[Offset]); 483c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 484c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return true; 485c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 486c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 48737ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11111110(const uint8_t *OC, unsigned &Offset, 488c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 489c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << format("0x%02x ; b.w\n", OC[Offset]); 490c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 491c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return true; 492c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 493c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 49437ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesbool Decoder::opcode_11111111(const uint8_t *OC, unsigned &Offset, 495c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Length, bool Prologue) { 496c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ++Offset; 497c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return true; 498c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 499c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 50037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinesvoid Decoder::decodeOpcodes(ArrayRef<uint8_t> Opcodes, unsigned Offset, 501c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines bool Prologue) { 502c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines assert((!Prologue || Offset == 0) && "prologue should always use offset 0"); 503c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 504c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines bool Terminated = false; 505c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (unsigned OI = Offset, OE = Opcodes.size(); !Terminated && OI < OE; ) { 506c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (unsigned DI = 0;; ++DI) { 507c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if ((Opcodes[OI] & Ring[DI].Mask) == Ring[DI].Value) { 508c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Terminated = (this->*Ring[DI].Routine)(Opcodes.data(), OI, 0, Prologue); 509c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines break; 510c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 511c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines assert(DI < array_lengthof(Ring) && "unhandled opcode"); 512c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 513c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 514c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 515c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 516c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesbool Decoder::dumpXDataRecord(const COFFObjectFile &COFF, 517c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const SectionRef &Section, 518c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t FunctionAddress, uint64_t VA) { 519c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ArrayRef<uint8_t> Contents; 520c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (COFF.getSectionContents(COFF.getCOFFSection(Section), Contents)) 521c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 522c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 52337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines uint64_t SectionVA = Section.getAddress(); 524c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t Offset = VA - SectionVA; 525c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const ulittle32_t *Data = 526c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines reinterpret_cast<const ulittle32_t *>(Contents.data() + Offset); 527c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const ExceptionDataRecord XData(Data); 528c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 529c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines DictScope XRS(SW, "ExceptionData"); 530c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber("FunctionLength", XData.FunctionLength() << 1); 531c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber("Version", XData.Vers()); 532c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printBoolean("ExceptionData", XData.X()); 533c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printBoolean("EpiloguePacked", XData.E()); 534c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printBoolean("Fragment", XData.F()); 535c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber(XData.E() ? "EpilogueOffset" : "EpilogueScopes", 536c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines XData.EpilogueCount()); 537c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber("ByteCodeLength", 538c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines static_cast<uint64_t>(XData.CodeWords() * sizeof(uint32_t))); 539c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 540c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (XData.E()) { 54137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines ArrayRef<uint8_t> UC = XData.UnwindByteCode(); 542c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!XData.F()) { 543c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ListScope PS(SW, "Prologue"); 544c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines decodeOpcodes(UC, 0, /*Prologue=*/true); 545c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 546c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (XData.EpilogueCount()) { 547c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ListScope ES(SW, "Epilogue"); 548c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines decodeOpcodes(UC, XData.EpilogueCount(), /*Prologue=*/false); 549c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 550c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } else { 551c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ArrayRef<ulittle32_t> EpilogueScopes = XData.EpilogueScopes(); 552c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ListScope ESS(SW, "EpilogueScopes"); 553c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (const EpilogueScope ES : EpilogueScopes) { 554c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines DictScope ESES(SW, "EpilogueScope"); 555c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber("StartOffset", ES.EpilogueStartOffset()); 556c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber("Condition", ES.Condition()); 557c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber("EpilogueStartIndex", ES.EpilogueStartIndex()); 558c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 559c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ListScope Opcodes(SW, "Opcodes"); 560c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines decodeOpcodes(XData.UnwindByteCode(), ES.EpilogueStartIndex(), 561c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines /*Prologue=*/false); 562c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 563c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 564c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 565c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (XData.X()) { 566c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const uint32_t Address = XData.ExceptionHandlerRVA(); 567c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const uint32_t Parameter = XData.ExceptionHandlerParameter(); 568c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const size_t HandlerOffset = HeaderWords(XData) 569c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines + (XData.E() ? 0 : XData.EpilogueCount()) 570c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines + XData.CodeWords(); 571c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 572c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ErrorOr<SymbolRef> Symbol = 573c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines getRelocatedSymbol(COFF, Section, HandlerOffset * sizeof(uint32_t)); 574c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!Symbol) 575c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Symbol = getSymbol(COFF, Address, /*FunctionOnly=*/true); 576c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 577c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines StringRef Name; 578c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Symbol) 579c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Symbol->getName(Name); 580c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 581c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ListScope EHS(SW, "ExceptionHandler"); 582c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printString("Routine", formatSymbol(Name, Address)); 583c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printHex("Parameter", Parameter); 584c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 585c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 586c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return true; 587c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 588c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 589c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesbool Decoder::dumpUnpackedEntry(const COFFObjectFile &COFF, 590c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const SectionRef Section, uint64_t Offset, 591c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Index, const RuntimeFunction &RF) { 592c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines assert(RF.Flag() == RuntimeFunctionFlag::RFF_Unpacked && 593c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines "packed entry cannot be treated as an unpacked entry"); 594c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 595c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ErrorOr<SymbolRef> Function = getRelocatedSymbol(COFF, Section, Offset); 596c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!Function) 597c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Function = getSymbol(COFF, RF.BeginAddress, /*FunctionOnly=*/true); 598c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 599c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ErrorOr<SymbolRef> XDataRecord = getRelocatedSymbol(COFF, Section, Offset + 4); 600c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!XDataRecord) 601c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines XDataRecord = getSymbol(COFF, RF.ExceptionInformationRVA()); 602c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 603c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!RF.BeginAddress && !Function) 604c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 605c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!RF.UnwindData && !XDataRecord) 606c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 607c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 608c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines StringRef FunctionName; 609c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t FunctionAddress; 610c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Function) { 611c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Function->getName(FunctionName); 612c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Function->getAddress(FunctionAddress); 613c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } else { 614c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const pe32_header *PEHeader; 615c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (COFF.getPE32Header(PEHeader)) 616c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 617c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines FunctionAddress = PEHeader->ImageBase + RF.BeginAddress; 618c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 619c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 620c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printString("Function", formatSymbol(FunctionName, FunctionAddress)); 621c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 622c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (XDataRecord) { 623c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines StringRef Name; 624c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t Address; 625c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 626c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines XDataRecord->getName(Name); 627c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines XDataRecord->getAddress(Address); 628c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 629c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printString("ExceptionRecord", formatSymbol(Name, Address)); 630c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 631c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines section_iterator SI = COFF.section_end(); 632c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (XDataRecord->getSection(SI)) 633c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 634c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 635c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return dumpXDataRecord(COFF, *SI, FunctionAddress, Address); 636c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } else { 637c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const pe32_header *PEHeader; 638c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (COFF.getPE32Header(PEHeader)) 639c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 640c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 641c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t Address = PEHeader->ImageBase + RF.ExceptionInformationRVA(); 642c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printString("ExceptionRecord", formatSymbol("", Address)); 643c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 644c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ErrorOr<SectionRef> Section = 645c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines getSectionContaining(COFF, RF.ExceptionInformationRVA()); 646c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!Section) 647c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 648c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 649c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return dumpXDataRecord(COFF, *Section, FunctionAddress, 650c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines RF.ExceptionInformationRVA()); 651c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 652c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 653c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 654c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesbool Decoder::dumpPackedEntry(const object::COFFObjectFile &COFF, 655c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const SectionRef Section, uint64_t Offset, 656c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines unsigned Index, const RuntimeFunction &RF) { 657c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines assert((RF.Flag() == RuntimeFunctionFlag::RFF_Packed || 658c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines RF.Flag() == RuntimeFunctionFlag::RFF_PackedFragment) && 659c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines "unpacked entry cannot be treated as a packed entry"); 660c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 661c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ErrorOr<SymbolRef> Function = getRelocatedSymbol(COFF, Section, Offset); 662c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!Function) 663c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Function = getSymbol(COFF, RF.BeginAddress, /*FunctionOnly=*/true); 664c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 665c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines StringRef FunctionName; 666c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t FunctionAddress; 667c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Function) { 668c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Function->getName(FunctionName); 669c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Function->getAddress(FunctionAddress); 670c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } else { 671c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const pe32_header *PEHeader; 672c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (COFF.getPE32Header(PEHeader)) 673c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return false; 674c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines FunctionAddress = PEHeader->ImageBase + RF.BeginAddress; 675c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 676c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 677c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printString("Function", formatSymbol(FunctionName, FunctionAddress)); 678c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printBoolean("Fragment", 679c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines RF.Flag() == RuntimeFunctionFlag::RFF_PackedFragment); 680c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber("FunctionLength", RF.FunctionLength()); 681c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << "ReturnType: " << RF.Ret() << '\n'; 682c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printBoolean("HomedParameters", RF.H()); 683c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.startLine() << "SavedRegisters: "; 684c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines printRegisters(SavedRegisterMask(RF)); 685c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines OS << '\n'; 686c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines SW.printNumber("StackAdjustment", StackAdjustment(RF) << 2); 687c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 688c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return true; 689c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 690c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 691c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesbool Decoder::dumpProcedureDataEntry(const COFFObjectFile &COFF, 692c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const SectionRef Section, unsigned Index, 693c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ArrayRef<uint8_t> Contents) { 694c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines uint64_t Offset = PDataEntrySize * Index; 695c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const ulittle32_t *Data = 696c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines reinterpret_cast<const ulittle32_t *>(Contents.data() + Offset); 697c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 698c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const RuntimeFunction Entry(Data); 699c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines DictScope RFS(SW, "RuntimeFunction"); 700c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Entry.Flag() == RuntimeFunctionFlag::RFF_Unpacked) 701c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return dumpUnpackedEntry(COFF, Section, Offset, Index, Entry); 702c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return dumpPackedEntry(COFF, Section, Offset, Index, Entry); 703c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 704c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 705c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesvoid Decoder::dumpProcedureData(const COFFObjectFile &COFF, 706c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines const SectionRef Section) { 707c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines ArrayRef<uint8_t> Contents; 708c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (COFF.getSectionContents(COFF.getCOFFSection(Section), Contents)) 709c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return; 710c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 711c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (Contents.size() % PDataEntrySize) { 712c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines errs() << ".pdata content is not " << PDataEntrySize << "-byte aligned\n"; 713c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return; 714c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 715c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 716c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (unsigned EI = 0, EE = Contents.size() / PDataEntrySize; EI < EE; ++EI) 717c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (!dumpProcedureDataEntry(COFF, Section, EI, Contents)) 718c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines break; 719c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 720c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 721c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinesstd::error_code Decoder::dumpProcedureData(const COFFObjectFile &COFF) { 722c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines for (const auto &Section : COFF.sections()) { 723c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines StringRef SectionName; 724c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (std::error_code EC = 725c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines COFF.getSectionName(COFF.getCOFFSection(Section), SectionName)) 726c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return EC; 727c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 728c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines if (SectionName.startswith(".pdata")) 729c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines dumpProcedureData(COFF, Section); 730c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines } 731c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines return std::error_code(); 732c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 733c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 734c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 735c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines} 736