1cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines//===-- ARMWinEHPrinter.cpp - Windows on ARM EH Data Printer ----*- C++ -*-===// 2cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 3cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// The LLVM Compiler Infrastructure 4cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 5cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// This file is distributed under the University of Illinois Open Source 6cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// License. See LICENSE.TXT for details. 7cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 8cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines//===----------------------------------------------------------------------===// 9cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 10cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// Windows on ARM uses a series of serialised data structures (RuntimeFunction) 11cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// to create a table of information for unwinding. In order to conserve space, 12cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// there are two different ways that this data is represented. 13cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 14cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// For functions with canonical forms for the prologue and epilogue, the data 15cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// can be stored in a "packed" form. In this case, the data is packed into the 16cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// RuntimeFunction's remaining 30-bits and can fully describe the entire frame. 17cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 18cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// +---------------------------------------+ 19cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// | Function Entry Address | 20cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// +---------------------------------------+ 21cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// | Packed Form Data | 22cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// +---------------------------------------+ 23cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 24cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// This layout is parsed by Decoder::dumpPackedEntry. No unwind bytecode is 25cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// associated with such a frame as they can be derived from the provided data. 26cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// The decoder does not synthesize this data as it is unnecessary for the 27cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// purposes of validation, with the synthesis being required only by a proper 28cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// unwinder. 29cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 30cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// For functions that are large or do not match canonical forms, the data is 31cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// split up into two portions, with the actual data residing in the "exception 32cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// data" table (.xdata) with a reference to the entry from the "procedure data" 33cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// (.pdata) entry. 34cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 35cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// The exception data contains information about the frame setup, all of the 36cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// epilouge scopes (for functions for which there are multiple exit points) and 37cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// the associated exception handler. Additionally, the entry contains byte-code 38cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// describing how to unwind the function (c.f. Decoder::decodeOpcodes). 39cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 40cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// +---------------------------------------+ 41cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// | Function Entry Address | 42cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// +---------------------------------------+ 43cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// | Exception Data Entry Address | 44cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// +---------------------------------------+ 45cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 46cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// This layout is parsed by Decoder::dumpUnpackedEntry. Such an entry must 47cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// first resolve the exception data entry address. This structure 48cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// (ExceptionDataRecord) has a variable sized header 49cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// (c.f. ARM::WinEH::HeaderWords) and encodes most of the same information as 50cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// the packed form. However, because this information is insufficient to 51cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// synthesize the unwinding, there are associated unwinding bytecode which make 52cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// up the bulk of the Decoder. 53cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 54cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// The decoder itself is table-driven, using the first byte to determine the 55cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// opcode and dispatching to the associated printing routine. The bytecode 56cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// itself is a variable length instruction encoding that can fully describe the 57cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// state of the stack and the necessary operations for unwinding to the 58cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// beginning of the frame. 59cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// 60cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// The byte-code maintains a 1-1 instruction mapping, indicating both the width 61cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// of the instruction (Thumb2 instructions are variable length, 16 or 32 bits 62cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// wide) allowing the program to unwind from any point in the prologue, body, or 63cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// epilogue of the function. 64cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 65cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "ARMWinEHPrinter.h" 66cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "Error.h" 67cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "llvm/ADT/StringExtras.h" 68cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "llvm/ADT/STLExtras.h" 69cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "llvm/Support/ARMWinEH.h" 70cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "llvm/Support/Format.h" 71cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 72cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesusing namespace llvm; 73cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesusing namespace llvm::object; 74cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesusing namespace llvm::support; 75cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 76cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesnamespace llvm { 77cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesraw_ostream &operator<<(raw_ostream &OS, const ARM::WinEH::ReturnType &RT) { 78cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines switch (RT) { 79cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines case ARM::WinEH::ReturnType::RT_POP: 80cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << "pop {pc}"; 81cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines break; 82cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines case ARM::WinEH::ReturnType::RT_B: 83cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << "b target"; 84cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines break; 85cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines case ARM::WinEH::ReturnType::RT_BW: 86cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << "b.w target"; 87cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines break; 88cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines case ARM::WinEH::ReturnType::RT_NoEpilogue: 89cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << "(no epilogue)"; 90cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines break; 91cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 92cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return OS; 93cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 94cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 95cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 96cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesstatic std::string formatSymbol(StringRef Name, uint64_t Address, 97cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Offset = 0) { 98cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines std::string Buffer; 99cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines raw_string_ostream OS(Buffer); 100cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 101cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!Name.empty()) 102cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << Name << " "; 103cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 104cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Offset) 105cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << format("+0x%X (0x%" PRIX64 ")", Offset, Address); 106cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines else if (!Name.empty()) 107cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << format("(0x%" PRIX64 ")", Address); 108cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines else 109cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << format("0x%" PRIX64, Address); 110cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 111cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return OS.str(); 112cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 113cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 114cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesnamespace llvm { 115cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesnamespace ARM { 116cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesnamespace WinEH { 117cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesconst size_t Decoder::PDataEntrySize = sizeof(RuntimeFunction); 118cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 119cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines// TODO name the uops more appropriately 120cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesconst Decoder::RingEntry Decoder::Ring[] = { 121cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0x80, 0x00, &Decoder::opcode_0xxxxxxx }, // UOP_STACK_FREE (16-bit) 122cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xc0, 0x80, &Decoder::opcode_10Lxxxxx }, // UOP_POP (32-bit) 123cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xf0, 0xc0, &Decoder::opcode_1100xxxx }, // UOP_STACK_SAVE (16-bit) 124cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xf8, 0xd0, &Decoder::opcode_11010Lxx }, // UOP_POP (16-bit) 125cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xf8, 0xd8, &Decoder::opcode_11011Lxx }, // UOP_POP (32-bit) 126cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xf8, 0xe0, &Decoder::opcode_11100xxx }, // UOP_VPOP (32-bit) 127cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xfc, 0xe8, &Decoder::opcode_111010xx }, // UOP_STACK_FREE (32-bit) 128cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xfe, 0xec, &Decoder::opcode_1110110L }, // UOP_POP (16-bit) 129cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xee, &Decoder::opcode_11101110 }, // UOP_MICROSOFT_SPECIFIC (16-bit) 130cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines // UOP_PUSH_MACHINE_FRAME 131cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines // UOP_PUSH_CONTEXT 132cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines // UOP_PUSH_TRAP_FRAME 133cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines // UOP_REDZONE_RESTORE_LR 134cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xef, &Decoder::opcode_11101111 }, // UOP_LDRPC_POSTINC (32-bit) 135cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xf5, &Decoder::opcode_11110101 }, // UOP_VPOP (32-bit) 136cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xf6, &Decoder::opcode_11110110 }, // UOP_VPOP (32-bit) 137cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xf7, &Decoder::opcode_11110111 }, // UOP_STACK_RESTORE (16-bit) 138cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xf8, &Decoder::opcode_11111000 }, // UOP_STACK_RESTORE (16-bit) 139cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xf9, &Decoder::opcode_11111001 }, // UOP_STACK_RESTORE (32-bit) 140cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xfa, &Decoder::opcode_11111010 }, // UOP_STACK_RESTORE (32-bit) 141cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xfb, &Decoder::opcode_11111011 }, // UOP_NOP (16-bit) 142cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xfc, &Decoder::opcode_11111100 }, // UOP_NOP (32-bit) 143cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xfd, &Decoder::opcode_11111101 }, // UOP_NOP (16-bit) / END 144cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xfe, &Decoder::opcode_11111110 }, // UOP_NOP (32-bit) / END 145cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines { 0xff, 0xff, &Decoder::opcode_11111111 }, // UOP_END 146cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines}; 147cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 148cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesvoid Decoder::printRegisters(const std::pair<uint16_t, uint32_t> &RegisterMask) { 149cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines static const char * const GPRRegisterNames[16] = { 150cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", 151cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines "r11", "ip", "sp", "lr", "pc", 152cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines }; 153cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 154cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const uint16_t GPRMask = std::get<0>(RegisterMask); 155cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const uint16_t VFPMask = std::get<1>(RegisterMask); 156cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 157cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '{'; 158cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines bool Comma = false; 159cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (unsigned RI = 0, RE = 11; RI < RE; ++RI) { 160cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (GPRMask & (1 << RI)) { 161cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Comma) 162cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << ", "; 163cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << GPRRegisterNames[RI]; 164cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Comma = true; 165cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 166cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 167cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (unsigned RI = 0, RE = 32; RI < RE; ++RI) { 168cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (VFPMask & (1 << RI)) { 169cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Comma) 170cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << ", "; 171cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << "d" << unsigned(RI); 172cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Comma = true; 173cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 174cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 175cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (unsigned RI = 11, RE = 16; RI < RE; ++RI) { 176cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (GPRMask & (1 << RI)) { 177cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Comma) 178cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << ", "; 179cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << GPRRegisterNames[RI]; 180cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Comma = true; 181cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 182cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 183cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '}'; 184cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 185cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 186cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen HinesErrorOr<object::SectionRef> 187cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen HinesDecoder::getSectionContaining(const COFFObjectFile &COFF, uint64_t VA) { 188cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (const auto &Section : COFF.sections()) { 189cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Address; 190cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Size; 191cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 192cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (std::error_code EC = Section.getAddress(Address)) 193cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return EC; 194cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (std::error_code EC = Section.getSize(Size)) 195cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return EC; 196cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 197cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (VA >= Address && (VA - Address) <= Size) 198cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return Section; 199cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 200cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return readobj_error::unknown_symbol; 201cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 202cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 203cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen HinesErrorOr<object::SymbolRef> Decoder::getSymbol(const COFFObjectFile &COFF, 204cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t VA, bool FunctionOnly) { 205cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (const auto &Symbol : COFF.symbols()) { 206cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (FunctionOnly) { 207cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SymbolRef::Type Type; 208cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (std::error_code EC = Symbol.getType(Type)) 209cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return EC; 210cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Type != SymbolRef::ST_Function) 211cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines continue; 212cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 213cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 214cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Address; 215cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (std::error_code EC = Symbol.getAddress(Address)) 216cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return EC; 217cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Address == VA) 218cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return Symbol; 219cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 220cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return readobj_error::unknown_symbol; 221cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 222cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 223cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen HinesErrorOr<SymbolRef> Decoder::getRelocatedSymbol(const COFFObjectFile &, 224cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const SectionRef &Section, 225cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Offset) { 226cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (const auto &Relocation : Section.relocations()) { 227cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t RelocationOffset; 228cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (auto Error = Relocation.getOffset(RelocationOffset)) 229cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return Error; 230cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (RelocationOffset == Offset) 231cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return *Relocation.getSymbol(); 232cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 233cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return readobj_error::unknown_symbol; 234cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 235cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 236cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_0xxxxxxx(const ulittle8_t *OC, unsigned &Offset, 237cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 238cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint8_t Imm = OC[Offset] & 0x7f; 239cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; %s sp, #(%u * 4)\n", 240cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset], 241cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), 242cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Imm); 243cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 244cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 245cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 246cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 247cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_10Lxxxxx(const ulittle8_t *OC, unsigned &Offset, 248cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 249cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Link = (OC[Offset] & 0x20) >> 5; 250cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint16_t RegisterMask = (Link << (Prologue ? 14 : 15)) 251cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | ((OC[Offset + 0] & 0x1f) << 8) 252cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | ((OC[Offset + 1] & 0xff) << 0); 253cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines assert((~RegisterMask & (1 << 13)) && "sp must not be set"); 254cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines assert((~RegisterMask & (1 << (Prologue ? 15 : 14))) && "pc must not be set"); 255cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 256cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s.w ", 257cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1], 258cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Prologue ? "push" : "pop"); 259cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines printRegisters(std::make_pair(RegisterMask, 0)); 260cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '\n'; 261cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 262cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset; 263cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 264cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 265cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 266cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_1100xxxx(const ulittle8_t *OC, unsigned &Offset, 267cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 268cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Prologue) 269cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; mov r%u, sp\n", 270cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset], OC[Offset] & 0xf); 271cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines else 272cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; mov sp, r%u\n", 273cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset], OC[Offset] & 0xf); 274cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 275cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 276cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 277cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 278cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11010Lxx(const ulittle8_t *OC, unsigned &Offset, 279cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 280cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Link = (OC[Offset] & 0x4) >> 3; 281cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Count = (OC[Offset] & 0x3); 282cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 283cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint16_t GPRMask = (Link << (Prologue ? 14 : 15)) 284cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | (((1 << (Count + 1)) - 1) << 4); 285cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 286cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; %s ", OC[Offset], 287cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Prologue ? "push" : "pop"); 288cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines printRegisters(std::make_pair(GPRMask, 0)); 289cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '\n'; 290cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 291cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 292cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 293cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 294cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 295cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11011Lxx(const ulittle8_t *OC, unsigned &Offset, 296cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 297cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Link = (OC[Offset] & 0x4) >> 2; 298cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Count = (OC[Offset] & 0x3) + 4; 299cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 300cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint16_t GPRMask = (Link << (Prologue ? 14 : 15)) 301cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | (((1 << (Count + 1)) - 1) << 4); 302cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 303cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; %s.w ", OC[Offset], 304cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Prologue ? "push" : "pop"); 305cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines printRegisters(std::make_pair(GPRMask, 0)); 306cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '\n'; 307cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 308cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 309cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 310cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 311cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 312cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11100xxx(const ulittle8_t *OC, unsigned &Offset, 313cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 314cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned High = (OC[Offset] & 0x7); 315cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint32_t VFPMask = (((1 << (High + 1)) - 1) << 8); 316cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 317cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; %s ", OC[Offset], 318cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Prologue ? "vpush" : "vpop"); 319cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines printRegisters(std::make_pair(0, VFPMask)); 320cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '\n'; 321cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 322cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 323cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 324cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 325cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 326cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_111010xx(const ulittle8_t *OC, unsigned &Offset, 327cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 328cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint16_t Imm = ((OC[Offset + 0] & 0x03) << 8) | ((OC[Offset + 1] & 0xff) << 0); 329cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 330cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s.w sp, #(%u * 4)\n", 331cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1], 332cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), 333cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Imm); 334cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 335cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset; 336cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 337cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 338cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 339cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_1110110L(const ulittle8_t *OC, unsigned &Offset, 340cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 341cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint8_t GPRMask = ((OC[Offset + 0] & 0x01) << (Prologue ? 14 : 15)) 342cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | ((OC[Offset + 1] & 0xff) << 0); 343cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 344cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s ", OC[Offset + 0], 345cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 1], Prologue ? "push" : "pop"); 346cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines printRegisters(std::make_pair(GPRMask, 0)); 347cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '\n'; 348cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 349cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset; 350cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 351cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 352cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 353cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11101110(const ulittle8_t *OC, unsigned &Offset, 354cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 355cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines assert(!Prologue && "may not be used in prologue"); 356cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 357cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (OC[Offset + 1] & 0xf0) 358cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x 0x%02x ; reserved\n", 359cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1]); 360cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines else 361cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() 362cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines << format("0x%02x 0x%02x ; microsoft-specific (type: %u)\n", 363cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 1] & 0x0f); 364cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 365cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset; 366cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 367cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 368cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 369cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11101111(const ulittle8_t *OC, unsigned &Offset, 370cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 371cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines assert(!Prologue && "may not be used in prologue"); 372cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 373cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (OC[Offset + 1] & 0xf0) 374cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x 0x%02x ; reserved\n", 375cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1]); 376cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines else 377cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() 378cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines << format("0x%02x 0x%02x ; ldr.w lr, [sp], #%u\n", 379cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 1] << 2); 380cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 381cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset; 382cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 383cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 384cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 385cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11110101(const ulittle8_t *OC, unsigned &Offset, 386cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 387cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Start = (OC[Offset + 1] & 0xf0) >> 4; 388cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned End = (OC[Offset + 1] & 0x0f) >> 0; 389cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint32_t VFPMask = ((1 << (End - Start)) - 1) << Start; 390cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 391cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s ", OC[Offset + 0], 392cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 1], Prologue ? "vpush" : "vpop"); 393cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines printRegisters(std::make_pair(0, VFPMask)); 394cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '\n'; 395cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 396cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset; 397cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 398cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 399cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 400cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11110110(const ulittle8_t *OC, unsigned &Offset, 401cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 402cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Start = (OC[Offset + 1] & 0xf0) >> 4; 403cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned End = (OC[Offset + 1] & 0x0f) >> 0; 404cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint32_t VFPMask = ((1 << (End - Start)) - 1) << 16; 405cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 406cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x 0x%02x ; %s ", OC[Offset + 0], 407cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 1], Prologue ? "vpush" : "vpop"); 408cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines printRegisters(std::make_pair(0, VFPMask)); 409cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '\n'; 410cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 411cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset; 412cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 413cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 414cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 415cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11110111(const ulittle8_t *OC, unsigned &Offset, 416cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 417cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint32_t Imm = (OC[Offset + 1] << 8) | (OC[Offset + 2] << 0); 418cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 419cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x 0x%02x 0x%02x ; %s sp, sp, #(%u * 4)\n", 420cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 2], 421cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), 422cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Imm); 423cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 424cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset, ++Offset; 425cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 426cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 427cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 428cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11111000(const ulittle8_t *OC, unsigned &Offset, 429cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 430cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint32_t Imm = (OC[Offset + 1] << 16) 431cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | (OC[Offset + 2] << 8) 432cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | (OC[Offset + 3] << 0); 433cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 434cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() 435cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines << format("0x%02x 0x%02x 0x%02x 0x%02x ; %s sp, sp, #(%u * 4)\n", 436cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 2], OC[Offset + 3], 437cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), Imm); 438cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 439cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset, ++Offset, ++Offset; 440cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 441cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 442cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 443cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11111001(const ulittle8_t *OC, unsigned &Offset, 444cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 445cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint32_t Imm = (OC[Offset + 1] << 8) | (OC[Offset + 2] << 0); 446cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 447cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() 448cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines << format("0x%02x 0x%02x 0x%02x ; %s.w sp, sp, #(%u * 4)\n", 449cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 2], 450cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), Imm); 451cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 452cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset, ++Offset; 453cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 454cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 455cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 456cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11111010(const ulittle8_t *OC, unsigned &Offset, 457cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 458cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint32_t Imm = (OC[Offset + 1] << 16) 459cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | (OC[Offset + 2] << 8) 460cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines | (OC[Offset + 3] << 0); 461cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 462cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() 463cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines << format("0x%02x 0x%02x 0x%02x 0x%02x ; %s.w sp, sp, #(%u * 4)\n", 464cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OC[Offset + 0], OC[Offset + 1], OC[Offset + 2], OC[Offset + 3], 465cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines static_cast<const char *>(Prologue ? "sub" : "add"), Imm); 466cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 467cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset, ++Offset, ++Offset, ++Offset; 468cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 469cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 470cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 471cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11111011(const ulittle8_t *OC, unsigned &Offset, 472cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 473cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; nop\n", OC[Offset]); 474cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 475cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 476cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 477cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 478cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11111100(const ulittle8_t *OC, unsigned &Offset, 479cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 480cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; nop.w\n", OC[Offset]); 481cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 482cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 483cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 484cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 485cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11111101(const ulittle8_t *OC, unsigned &Offset, 486cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 487cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; b\n", OC[Offset]); 488cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 489cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return true; 490cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 491cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 492cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11111110(const ulittle8_t *OC, unsigned &Offset, 493cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 494cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << format("0x%02x ; b.w\n", OC[Offset]); 495cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 496cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return true; 497cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 498cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 499cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::opcode_11111111(const ulittle8_t *OC, unsigned &Offset, 500cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Length, bool Prologue) { 501cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ++Offset; 502cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return true; 503cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 504cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 505cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesvoid Decoder::decodeOpcodes(ArrayRef<ulittle8_t> Opcodes, unsigned Offset, 506cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines bool Prologue) { 507cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines assert((!Prologue || Offset == 0) && "prologue should always use offset 0"); 508cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 509cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines bool Terminated = false; 510cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (unsigned OI = Offset, OE = Opcodes.size(); !Terminated && OI < OE; ) { 511cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (unsigned DI = 0;; ++DI) { 512cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if ((Opcodes[OI] & Ring[DI].Mask) == Ring[DI].Value) { 513cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Terminated = (this->*Ring[DI].Routine)(Opcodes.data(), OI, 0, Prologue); 514cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines break; 515cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 516cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines assert(DI < array_lengthof(Ring) && "unhandled opcode"); 517cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 518cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 519cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 520cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 521cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::dumpXDataRecord(const COFFObjectFile &COFF, 522cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const SectionRef &Section, 523cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t FunctionAddress, uint64_t VA) { 524cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ArrayRef<uint8_t> Contents; 525cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (COFF.getSectionContents(COFF.getCOFFSection(Section), Contents)) 526cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 527cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 528cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t SectionVA; 529cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Section.getAddress(SectionVA)) 530cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 531cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 532cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Offset = VA - SectionVA; 533cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const ulittle32_t *Data = 534cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines reinterpret_cast<const ulittle32_t *>(Contents.data() + Offset); 535cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const ExceptionDataRecord XData(Data); 536cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 537cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines DictScope XRS(SW, "ExceptionData"); 538cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber("FunctionLength", XData.FunctionLength() << 1); 539cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber("Version", XData.Vers()); 540cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printBoolean("ExceptionData", XData.X()); 541cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printBoolean("EpiloguePacked", XData.E()); 542cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printBoolean("Fragment", XData.F()); 543cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber(XData.E() ? "EpilogueOffset" : "EpilogueScopes", 544cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines XData.EpilogueCount()); 545cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber("ByteCodeLength", 546cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines static_cast<uint64_t>(XData.CodeWords() * sizeof(uint32_t))); 547cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 548cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (XData.E()) { 549cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ArrayRef<ulittle8_t> UC = XData.UnwindByteCode(); 550cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!XData.F()) { 551cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ListScope PS(SW, "Prologue"); 552cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines decodeOpcodes(UC, 0, /*Prologue=*/true); 553cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 554cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (XData.EpilogueCount()) { 555cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ListScope ES(SW, "Epilogue"); 556cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines decodeOpcodes(UC, XData.EpilogueCount(), /*Prologue=*/false); 557cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 558cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } else { 559cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ArrayRef<ulittle32_t> EpilogueScopes = XData.EpilogueScopes(); 560cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ListScope ESS(SW, "EpilogueScopes"); 561cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (const EpilogueScope ES : EpilogueScopes) { 562cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines DictScope ESES(SW, "EpilogueScope"); 563cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber("StartOffset", ES.EpilogueStartOffset()); 564cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber("Condition", ES.Condition()); 565cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber("EpilogueStartIndex", ES.EpilogueStartIndex()); 566cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 567cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ListScope Opcodes(SW, "Opcodes"); 568cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines decodeOpcodes(XData.UnwindByteCode(), ES.EpilogueStartIndex(), 569cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines /*Prologue=*/false); 570cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 571cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 572cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 573cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (XData.X()) { 574cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const uint32_t Address = XData.ExceptionHandlerRVA(); 575cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const uint32_t Parameter = XData.ExceptionHandlerParameter(); 576cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const size_t HandlerOffset = HeaderWords(XData) 577cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines + (XData.E() ? 0 : XData.EpilogueCount()) 578cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines + XData.CodeWords(); 579cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 580cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ErrorOr<SymbolRef> Symbol = 581cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines getRelocatedSymbol(COFF, Section, HandlerOffset * sizeof(uint32_t)); 582cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!Symbol) 583cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Symbol = getSymbol(COFF, Address, /*FunctionOnly=*/true); 584cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 585cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines StringRef Name; 586cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Symbol) 587cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Symbol->getName(Name); 588cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 589cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ListScope EHS(SW, "ExceptionHandler"); 590cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printString("Routine", formatSymbol(Name, Address)); 591cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printHex("Parameter", Parameter); 592cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 593cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 594cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return true; 595cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 596cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 597cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::dumpUnpackedEntry(const COFFObjectFile &COFF, 598cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const SectionRef Section, uint64_t Offset, 599cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Index, const RuntimeFunction &RF) { 600cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines assert(RF.Flag() == RuntimeFunctionFlag::RFF_Unpacked && 601cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines "packed entry cannot be treated as an unpacked entry"); 602cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 603cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ErrorOr<SymbolRef> Function = getRelocatedSymbol(COFF, Section, Offset); 604cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!Function) 605cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Function = getSymbol(COFF, RF.BeginAddress, /*FunctionOnly=*/true); 606cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 607cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ErrorOr<SymbolRef> XDataRecord = getRelocatedSymbol(COFF, Section, Offset + 4); 608cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!XDataRecord) 609cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines XDataRecord = getSymbol(COFF, RF.ExceptionInformationRVA()); 610cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 611cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!RF.BeginAddress && !Function) 612cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 613cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!RF.UnwindData && !XDataRecord) 614cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 615cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 616cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines StringRef FunctionName; 617cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t FunctionAddress; 618cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Function) { 619cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Function->getName(FunctionName); 620cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Function->getAddress(FunctionAddress); 621cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } else { 622cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const pe32_header *PEHeader; 623cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (COFF.getPE32Header(PEHeader)) 624cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 625cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines FunctionAddress = PEHeader->ImageBase + RF.BeginAddress; 626cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 627cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 628cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printString("Function", formatSymbol(FunctionName, FunctionAddress)); 629cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 630cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (XDataRecord) { 631cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines StringRef Name; 632cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Address; 633cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 634cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines XDataRecord->getName(Name); 635cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines XDataRecord->getAddress(Address); 636cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 637cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printString("ExceptionRecord", formatSymbol(Name, Address)); 638cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 639cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines section_iterator SI = COFF.section_end(); 640cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (XDataRecord->getSection(SI)) 641cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 642cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 643cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return dumpXDataRecord(COFF, *SI, FunctionAddress, Address); 644cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } else { 645cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const pe32_header *PEHeader; 646cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (COFF.getPE32Header(PEHeader)) 647cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 648cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 649cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Address = PEHeader->ImageBase + RF.ExceptionInformationRVA(); 650cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printString("ExceptionRecord", formatSymbol("", Address)); 651cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 652cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ErrorOr<SectionRef> Section = 653cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines getSectionContaining(COFF, RF.ExceptionInformationRVA()); 654cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!Section) 655cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 656cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 657cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return dumpXDataRecord(COFF, *Section, FunctionAddress, 658cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines RF.ExceptionInformationRVA()); 659cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 660cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 661cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 662cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::dumpPackedEntry(const object::COFFObjectFile &COFF, 663cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const SectionRef Section, uint64_t Offset, 664cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines unsigned Index, const RuntimeFunction &RF) { 665cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines assert((RF.Flag() == RuntimeFunctionFlag::RFF_Packed || 666cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines RF.Flag() == RuntimeFunctionFlag::RFF_PackedFragment) && 667cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines "unpacked entry cannot be treated as a packed entry"); 668cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 669cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ErrorOr<SymbolRef> Function = getRelocatedSymbol(COFF, Section, Offset); 670cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!Function) 671cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Function = getSymbol(COFF, RF.BeginAddress, /*FunctionOnly=*/true); 672cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 673cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines StringRef FunctionName; 674cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t FunctionAddress; 675cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Function) { 676cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Function->getName(FunctionName); 677cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines Function->getAddress(FunctionAddress); 678cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } else { 679cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const pe32_header *PEHeader; 680cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (COFF.getPE32Header(PEHeader)) 681cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return false; 682cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines FunctionAddress = PEHeader->ImageBase + RF.BeginAddress; 683cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 684cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 685cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printString("Function", formatSymbol(FunctionName, FunctionAddress)); 686cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printBoolean("Fragment", 687cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines RF.Flag() == RuntimeFunctionFlag::RFF_PackedFragment); 688cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber("FunctionLength", RF.FunctionLength()); 689cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << "ReturnType: " << RF.Ret() << '\n'; 690cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printBoolean("HomedParameters", RF.H()); 691cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.startLine() << "SavedRegisters: "; 692cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines printRegisters(SavedRegisterMask(RF)); 693cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines OS << '\n'; 694cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines SW.printNumber("StackAdjustment", StackAdjustment(RF) << 2); 695cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 696cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return true; 697cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 698cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 699cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesbool Decoder::dumpProcedureDataEntry(const COFFObjectFile &COFF, 700cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const SectionRef Section, unsigned Index, 701cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ArrayRef<uint8_t> Contents) { 702cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines uint64_t Offset = PDataEntrySize * Index; 703cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const ulittle32_t *Data = 704cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines reinterpret_cast<const ulittle32_t *>(Contents.data() + Offset); 705cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 706cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const RuntimeFunction Entry(Data); 707cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines DictScope RFS(SW, "RuntimeFunction"); 708cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Entry.Flag() == RuntimeFunctionFlag::RFF_Unpacked) 709cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return dumpUnpackedEntry(COFF, Section, Offset, Index, Entry); 710cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return dumpPackedEntry(COFF, Section, Offset, Index, Entry); 711cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 712cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 713cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesvoid Decoder::dumpProcedureData(const COFFObjectFile &COFF, 714cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const SectionRef Section) { 715cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ArrayRef<uint8_t> Contents; 716cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (COFF.getSectionContents(COFF.getCOFFSection(Section), Contents)) 717cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return; 718cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 719cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (Contents.size() % PDataEntrySize) { 720cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines errs() << ".pdata content is not " << PDataEntrySize << "-byte aligned\n"; 721cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return; 722cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 723cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 724cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (unsigned EI = 0, EE = Contents.size() / PDataEntrySize; EI < EE; ++EI) 725cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (!dumpProcedureDataEntry(COFF, Section, EI, Contents)) 726cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines break; 727cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 728cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 729cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hinesstd::error_code Decoder::dumpProcedureData(const COFFObjectFile &COFF) { 730cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines for (const auto &Section : COFF.sections()) { 731cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines StringRef SectionName; 732cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (std::error_code EC = 733cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines COFF.getSectionName(COFF.getCOFFSection(Section), SectionName)) 734cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return EC; 735cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 736cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines if (SectionName.startswith(".pdata")) 737cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines dumpProcedureData(COFF, Section); 738cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 739cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return std::error_code(); 740cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 741cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 742cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 743cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines} 744cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 745