ABISysV_arm64.cpp revision 309124
1//===-- ABISysV_arm64.cpp ---------------------------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#include "ABISysV_arm64.h" 11 12// C Includes 13// C++ Includes 14#include <vector> 15 16// Other libraries and framework includes 17#include "llvm/ADT/STLExtras.h" 18#include "llvm/ADT/Triple.h" 19 20// Project includes 21#include "lldb/Core/ConstString.h" 22#include "lldb/Core/Error.h" 23#include "lldb/Core/Log.h" 24#include "lldb/Core/Module.h" 25#include "lldb/Core/PluginManager.h" 26#include "lldb/Core/RegisterValue.h" 27#include "lldb/Core/Scalar.h" 28#include "lldb/Core/Value.h" 29#include "lldb/Core/ValueObjectConstResult.h" 30#include "lldb/Symbol/UnwindPlan.h" 31#include "lldb/Target/Process.h" 32#include "lldb/Target/RegisterContext.h" 33#include "lldb/Target/Target.h" 34#include "lldb/Target/Thread.h" 35 36#include "Utility/ARM64_DWARF_Registers.h" 37 38using namespace lldb; 39using namespace lldb_private; 40 41static RegisterInfo g_register_infos[] = 42{ 43 // NAME ALT SZ OFF ENCODING FORMAT EH_FRAME DWARF GENERIC PROCESS PLUGIN LLDB NATIVE 44 // ========== ======= == === ============= =================== =================== ====================== =========================== ======================= ====================== 45 { "x0", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x0, LLDB_REGNUM_GENERIC_ARG1, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 46 { "x1", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x1, LLDB_REGNUM_GENERIC_ARG2, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 47 { "x2", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x2, LLDB_REGNUM_GENERIC_ARG3, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 48 { "x3", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x3, LLDB_REGNUM_GENERIC_ARG4, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 49 { "x4", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x4, LLDB_REGNUM_GENERIC_ARG5, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 50 { "x5", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x5, LLDB_REGNUM_GENERIC_ARG6, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 51 { "x6", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x6, LLDB_REGNUM_GENERIC_ARG7, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 52 { "x7", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x7, LLDB_REGNUM_GENERIC_ARG8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 53 { "x8", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 54 { "x9", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x9, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 55 { "x10", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x10, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 56 { "x11", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x11, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 57 { "x12", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x12, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 58 { "x13", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x13, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 59 { "x14", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x14, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 60 { "x15", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x15, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 61 { "x16", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x16, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 62 { "x17", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x17, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 63 { "x18", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x18, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 64 { "x19", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x19, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 65 { "x20", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x20, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 66 { "x21", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x21, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 67 { "x22", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x22, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 68 { "x23", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x23, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 69 { "x24", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x24, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 70 { "x25", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x25, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 71 { "x26", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x26, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 72 { "x27", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x27, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 73 { "x28", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x28, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 74 { "fp", "x29", 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x29, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 75 { "lr", "x30", 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x30, LLDB_REGNUM_GENERIC_RA, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 76 { "sp", "x31", 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x31, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 77 { "pc", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::pc, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 78 { "cpsr", "psr", 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::cpsr, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 79 80 { "v0", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v0, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 81 { "v1", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v1, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 82 { "v2", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v2, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 83 { "v3", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v3, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 84 { "v4", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v4, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 85 { "v5", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v5, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 86 { "v6", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v6, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 87 { "v7", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v7, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 88 { "v8", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 89 { "v9", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v9, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 90 { "v10", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v10, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 91 { "v11", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v11, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 92 { "v12", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v12, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 93 { "v13", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v13, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 94 { "v14", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v14, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 95 { "v15", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v15, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 96 { "v16", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v16, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 97 { "v17", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v17, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 98 { "v18", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v18, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 99 { "v19", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v19, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 100 { "v20", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v20, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 101 { "v21", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v21, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 102 { "v22", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v22, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 103 { "v23", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v23, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 104 { "v24", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v24, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 105 { "v25", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v25, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 106 { "v26", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v26, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 107 { "v27", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v27, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 108 { "v28", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v28, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 109 { "v29", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v29, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 110 { "v30", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v30, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 111 { "v31", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v31, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 112 113 { "fpsr", nullptr, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 114 { "fpcr", nullptr, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 115 116 { "s0", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 117 { "s1", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 118 { "s2", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 119 { "s3", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 120 { "s4", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 121 { "s5", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 122 { "s6", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 123 { "s7", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 124 { "s8", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 125 { "s9", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 126 { "s10", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 127 { "s11", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 128 { "s12", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 129 { "s13", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 130 { "s14", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 131 { "s15", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 132 { "s16", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 133 { "s17", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 134 { "s18", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 135 { "s19", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 136 { "s20", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 137 { "s21", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 138 { "s22", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 139 { "s23", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 140 { "s24", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 141 { "s25", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 142 { "s26", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 143 { "s27", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 144 { "s28", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 145 { "s29", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 146 { "s30", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 147 { "s31", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 148 149 { "d0", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 150 { "d1", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 151 { "d2", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 152 { "d3", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 153 { "d4", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 154 { "d5", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 155 { "d6", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 156 { "d7", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 157 { "d8", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 158 { "d9", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 159 { "d10", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 160 { "d11", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 161 { "d12", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 162 { "d13", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 163 { "d14", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 164 { "d15", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 165 { "d16", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 166 { "d17", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 167 { "d18", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 168 { "d19", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 169 { "d20", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 170 { "d21", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 171 { "d22", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 172 { "d23", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 173 { "d24", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 174 { "d25", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 175 { "d26", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 176 { "d27", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 177 { "d28", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 178 { "d29", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 179 { "d30", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, 180 { "d31", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr } 181}; 182 183static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos); 184static bool g_register_info_names_constified = false; 185 186const lldb_private::RegisterInfo * 187ABISysV_arm64::GetRegisterInfoArray (uint32_t &count) 188{ 189 // Make the C-string names and alt_names for the register infos into const 190 // C-string values by having the ConstString unique the names in the global 191 // constant C-string pool. 192 if (!g_register_info_names_constified) 193 { 194 g_register_info_names_constified = true; 195 for (uint32_t i=0; i<k_num_register_infos; ++i) 196 { 197 if (g_register_infos[i].name) 198 g_register_infos[i].name = ConstString(g_register_infos[i].name).GetCString(); 199 if (g_register_infos[i].alt_name) 200 g_register_infos[i].alt_name = ConstString(g_register_infos[i].alt_name).GetCString(); 201 } 202 } 203 count = k_num_register_infos; 204 return g_register_infos; 205} 206 207size_t 208ABISysV_arm64::GetRedZoneSize () const 209{ 210 return 128; 211} 212 213//------------------------------------------------------------------ 214// Static Functions 215//------------------------------------------------------------------ 216 217ABISP 218ABISysV_arm64::CreateInstance (const ArchSpec &arch) 219{ 220 static ABISP g_abi_sp; 221 const llvm::Triple::ArchType arch_type = arch.GetTriple().getArch(); 222 const llvm::Triple::VendorType vendor_type = arch.GetTriple().getVendor(); 223 224 if (vendor_type != llvm::Triple::Apple) 225 { 226 if (arch_type == llvm::Triple::aarch64) 227 { 228 if (!g_abi_sp) 229 g_abi_sp.reset (new ABISysV_arm64); 230 return g_abi_sp; 231 } 232 } 233 234 return ABISP(); 235} 236 237bool 238ABISysV_arm64::PrepareTrivialCall (Thread &thread, 239 addr_t sp, 240 addr_t func_addr, 241 addr_t return_addr, 242 llvm::ArrayRef<addr_t> args) const 243{ 244 RegisterContext *reg_ctx = thread.GetRegisterContext().get(); 245 if (!reg_ctx) 246 return false; 247 248 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 249 250 if (log) 251 { 252 StreamString s; 253 s.Printf("ABISysV_x86_64::PrepareTrivialCall (tid = 0x%" PRIx64 ", sp = 0x%" PRIx64 ", func_addr = 0x%" PRIx64 ", return_addr = 0x%" PRIx64, 254 thread.GetID(), 255 (uint64_t)sp, 256 (uint64_t)func_addr, 257 (uint64_t)return_addr); 258 259 for (size_t i = 0; i < args.size(); ++i) 260 s.Printf (", arg%d = 0x%" PRIx64, static_cast<int>(i + 1), args[i]); 261 s.PutCString (")"); 262 log->PutCString(s.GetString().c_str()); 263 } 264 265 // x0 - x7 contain first 8 simple args 266 if (args.size() > 8) 267 return false; 268 269 for (size_t i = 0; i < args.size(); ++i) 270 { 271 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + i); 272 if (log) 273 log->Printf("About to write arg%d (0x%" PRIx64 ") into %s", 274 static_cast<int>(i + 1), args[i], reg_info->name); 275 if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, args[i])) 276 return false; 277 } 278 279 // Set "lr" to the return address 280 if (!reg_ctx->WriteRegisterFromUnsigned (reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA), return_addr)) 281 return false; 282 283 // Set "sp" to the requested value 284 if (!reg_ctx->WriteRegisterFromUnsigned (reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP), sp)) 285 return false; 286 287 // Set "pc" to the address requested 288 if (!reg_ctx->WriteRegisterFromUnsigned (reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC), func_addr)) 289 return false; 290 291 return true; 292} 293 294//TODO: We dont support fp/SIMD arguments in v0-v7 295bool 296ABISysV_arm64::GetArgumentValues (Thread &thread, ValueList &values) const 297{ 298 uint32_t num_values = values.GetSize(); 299 300 ExecutionContext exe_ctx (thread.shared_from_this()); 301 302 // Extract the register context so we can read arguments from registers 303 304 RegisterContext *reg_ctx = thread.GetRegisterContext().get(); 305 306 if (!reg_ctx) 307 return false; 308 309 addr_t sp = 0; 310 311 for (uint32_t value_idx = 0; value_idx < num_values; ++value_idx) 312 { 313 // We currently only support extracting values with Clang QualTypes. 314 // Do we care about others? 315 Value *value = values.GetValueAtIndex(value_idx); 316 317 if (!value) 318 return false; 319 320 CompilerType value_type = value->GetCompilerType(); 321 if (value_type) 322 { 323 bool is_signed = false; 324 size_t bit_width = 0; 325 if (value_type.IsIntegerOrEnumerationType (is_signed)) 326 { 327 bit_width = value_type.GetBitSize(&thread); 328 } 329 else if (value_type.IsPointerOrReferenceType ()) 330 { 331 bit_width = value_type.GetBitSize(&thread); 332 } 333 else 334 { 335 // We only handle integer, pointer and reference types currently... 336 return false; 337 } 338 339 if (bit_width <= (exe_ctx.GetProcessRef().GetAddressByteSize() * 8)) 340 { 341 if (value_idx < 8) 342 { 343 // Arguments 1-8 are in x0-x7... 344 const RegisterInfo *reg_info = nullptr; 345 reg_info= reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + value_idx); 346 347 if (reg_info) 348 { 349 RegisterValue reg_value; 350 351 if (reg_ctx->ReadRegister(reg_info, reg_value)) 352 { 353 if (is_signed) 354 reg_value.SignExtend(bit_width); 355 if (!reg_value.GetScalarValue(value->GetScalar())) 356 return false; 357 continue; 358 } 359 } 360 return false; 361 } 362 else 363 { 364 //TODO: Verify for stack layout for SysV 365 if (sp == 0) 366 { 367 // Read the stack pointer if we already haven't read it 368 sp = reg_ctx->GetSP(0); 369 if (sp == 0) 370 return false; 371 } 372 373 // Arguments 5 on up are on the stack 374 const uint32_t arg_byte_size = (bit_width + (8-1)) / 8; 375 Error error; 376 if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory(sp, arg_byte_size, is_signed, value->GetScalar(), error)) 377 return false; 378 379 sp += arg_byte_size; 380 // Align up to the next 8 byte boundary if needed 381 if (sp % 8) 382 { 383 sp >>= 3; 384 sp += 1; 385 sp <<= 3; 386 } 387 } 388 } 389 } 390 } 391 return true; 392} 393 394Error 395ABISysV_arm64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value_sp) 396{ 397 Error error; 398 if (!new_value_sp) 399 { 400 error.SetErrorString("Empty value object for return value."); 401 return error; 402 } 403 404 CompilerType return_value_type = new_value_sp->GetCompilerType(); 405 if (!return_value_type) 406 { 407 error.SetErrorString ("Null clang type for return value."); 408 return error; 409 } 410 411 Thread *thread = frame_sp->GetThread().get(); 412 413 RegisterContext *reg_ctx = thread->GetRegisterContext().get(); 414 415 if (reg_ctx) 416 { 417 DataExtractor data; 418 Error data_error; 419 const uint64_t byte_size = new_value_sp->GetData(data, data_error); 420 if (data_error.Fail()) 421 { 422 error.SetErrorStringWithFormat("Couldn't convert return value to raw data: %s", data_error.AsCString()); 423 return error; 424 } 425 426 const uint32_t type_flags = return_value_type.GetTypeInfo(nullptr); 427 if (type_flags & eTypeIsScalar || 428 type_flags & eTypeIsPointer) 429 { 430 if (type_flags & eTypeIsInteger || 431 type_flags & eTypeIsPointer ) 432 { 433 // Extract the register context so we can read arguments from registers 434 lldb::offset_t offset = 0; 435 if (byte_size <= 16) 436 { 437 const RegisterInfo *x0_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1); 438 if (byte_size <= 8) 439 { 440 uint64_t raw_value = data.GetMaxU64(&offset, byte_size); 441 442 if (!reg_ctx->WriteRegisterFromUnsigned (x0_info, raw_value)) 443 error.SetErrorString ("failed to write register x0"); 444 } 445 else 446 { 447 uint64_t raw_value = data.GetMaxU64(&offset, 8); 448 449 if (reg_ctx->WriteRegisterFromUnsigned (x0_info, raw_value)) 450 { 451 const RegisterInfo *x1_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2); 452 raw_value = data.GetMaxU64(&offset, byte_size - offset); 453 454 if (!reg_ctx->WriteRegisterFromUnsigned (x1_info, raw_value)) 455 error.SetErrorString ("failed to write register x1"); 456 } 457 } 458 } 459 else 460 { 461 error.SetErrorString("We don't support returning longer than 128 bit integer values at present."); 462 } 463 } 464 else if (type_flags & eTypeIsFloat) 465 { 466 if (type_flags & eTypeIsComplex) 467 { 468 // Don't handle complex yet. 469 error.SetErrorString ("returning complex float values are not supported"); 470 } 471 else 472 { 473 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0); 474 475 if (v0_info) 476 { 477 if (byte_size <= 16) 478 { 479 if (byte_size <= RegisterValue::GetMaxByteSize()) 480 { 481 RegisterValue reg_value; 482 error = reg_value.SetValueFromData (v0_info, data, 0, true); 483 if (error.Success()) 484 { 485 if (!reg_ctx->WriteRegister (v0_info, reg_value)) 486 error.SetErrorString ("failed to write register v0"); 487 } 488 } 489 else 490 { 491 error.SetErrorStringWithFormat ("returning float values with a byte size of %" PRIu64 " are not supported", byte_size); 492 } 493 } 494 else 495 { 496 error.SetErrorString("returning float values longer than 128 bits are not supported"); 497 } 498 } 499 else 500 { 501 error.SetErrorString("v0 register is not available on this target"); 502 } 503 } 504 } 505 } 506 else if (type_flags & eTypeIsVector) 507 { 508 if (byte_size > 0) 509 { 510 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0); 511 512 if (v0_info) 513 { 514 if (byte_size <= v0_info->byte_size) 515 { 516 RegisterValue reg_value; 517 error = reg_value.SetValueFromData (v0_info, data, 0, true); 518 if (error.Success()) 519 { 520 if (!reg_ctx->WriteRegister (v0_info, reg_value)) 521 error.SetErrorString ("failed to write register v0"); 522 } 523 } 524 } 525 } 526 } 527 } 528 else 529 { 530 error.SetErrorString("no registers are available"); 531 } 532 533 return error; 534} 535 536bool 537ABISysV_arm64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan) 538{ 539 unwind_plan.Clear(); 540 unwind_plan.SetRegisterKind (eRegisterKindDWARF); 541 542 uint32_t lr_reg_num = arm64_dwarf::lr; 543 uint32_t sp_reg_num = arm64_dwarf::sp; 544 uint32_t pc_reg_num = arm64_dwarf::pc; 545 546 UnwindPlan::RowSP row(new UnwindPlan::Row); 547 548 // Our previous Call Frame Address is the stack pointer 549 row->GetCFAValue().SetIsRegisterPlusOffset (sp_reg_num, 0); 550 551 // Our previous PC is in the LR 552 row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true); 553 554 unwind_plan.AppendRow (row); 555 556 // All other registers are the same. 557 558 unwind_plan.SetSourceName ("arm64 at-func-entry default"); 559 unwind_plan.SetSourcedFromCompiler (eLazyBoolNo); 560 561 return true; 562} 563 564bool 565ABISysV_arm64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan) 566{ 567 unwind_plan.Clear(); 568 unwind_plan.SetRegisterKind (eRegisterKindDWARF); 569 570 uint32_t fp_reg_num = arm64_dwarf::fp; 571 uint32_t pc_reg_num = arm64_dwarf::pc; 572 573 UnwindPlan::RowSP row(new UnwindPlan::Row); 574 const int32_t ptr_size = 8; 575 576 row->GetCFAValue().SetIsRegisterPlusOffset (fp_reg_num, 2 * ptr_size); 577 row->SetOffset (0); 578 579 row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true); 580 row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true); 581 582 unwind_plan.AppendRow (row); 583 unwind_plan.SetSourceName ("arm64 default unwind plan"); 584 unwind_plan.SetSourcedFromCompiler (eLazyBoolNo); 585 unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo); 586 587 return true; 588} 589 590// AAPCS64 (Procedure Call Standard for the ARM 64-bit Architecture) says 591// registers x19 through x28 and sp are callee preserved. 592// v8-v15 are non-volatile (and specifically only the lower 8 bytes of these regs), 593// the rest of the fp/SIMD registers are volatile. 594 595// We treat x29 as callee preserved also, else the unwinder won't try to 596// retrieve fp saves. 597 598bool 599ABISysV_arm64::RegisterIsVolatile (const RegisterInfo *reg_info) 600{ 601 if (reg_info) 602 { 603 const char *name = reg_info->name; 604 605 // Sometimes we'll be called with the "alternate" name for these registers; 606 // recognize them as non-volatile. 607 608 if (name[0] == 'p' && name[1] == 'c') // pc 609 return false; 610 if (name[0] == 'f' && name[1] == 'p') // fp 611 return false; 612 if (name[0] == 's' && name[1] == 'p') // sp 613 return false; 614 if (name[0] == 'l' && name[1] == 'r') // lr 615 return false; 616 617 if (name[0] == 'x') 618 { 619 // Volatile registers: x0-x18 620 // Although documentation says only x19-28 + sp are callee saved 621 // We ll also have to treat x30 as non-volatile. 622 // Each dwarf frame has its own value of lr. 623 // Return false for the non-volatile gpr regs, true for everything else 624 switch (name[1]) 625 { 626 case '1': 627 switch (name[2]) 628 { 629 case '9': 630 return false; // x19 is non-volatile 631 default: 632 return true; 633 } 634 break; 635 case '2': 636 switch (name[2]) 637 { 638 case '0': 639 case '1': 640 case '2': 641 case '3': 642 case '4': 643 case '5': 644 case '6': 645 case '7': 646 case '8': 647 return false; // x20 - 28 are non-volatile 648 case '9': 649 return false; // x29 aka fp treat as non-volatile 650 default: 651 return true; 652 } 653 case '3': // x30 (lr) and x31 (sp) treat as non-volatile 654 if (name[2] == '0' || name[2] == '1') 655 return false; 656 break; 657 default: 658 return true; // all volatile cases not handled above fall here. 659 } 660 } 661 else if (name[0] == 'v' || name[0] == 's' || name[0] == 'd') 662 { 663 // Volatile registers: v0-7, v16-v31 664 // Return false for non-volatile fp/SIMD regs, true for everything else 665 switch (name[1]) 666 { 667 case '8': 668 case '9': 669 return false; // v8-v9 are non-volatile 670 case '1': 671 switch (name[2]) 672 { 673 case '0': 674 case '1': 675 case '2': 676 case '3': 677 case '4': 678 case '5': 679 return false; // v10-v15 are non-volatile 680 default: 681 return true; 682 } 683 default: 684 return true; 685 } 686 } 687 } 688 return true; 689} 690 691static bool 692LoadValueFromConsecutiveGPRRegisters (ExecutionContext &exe_ctx, 693 RegisterContext *reg_ctx, 694 const CompilerType &value_type, 695 bool is_return_value, // false => parameter, true => return value 696 uint32_t &NGRN, // NGRN (see ABI documentation) 697 uint32_t &NSRN, // NSRN (see ABI documentation) 698 DataExtractor &data) 699{ 700 const size_t byte_size = value_type.GetByteSize(nullptr); 701 702 if (byte_size == 0) 703 return false; 704 705 std::unique_ptr<DataBufferHeap> heap_data_ap (new DataBufferHeap(byte_size, 0)); 706 const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder(); 707 Error error; 708 709 CompilerType base_type; 710 const uint32_t homogeneous_count = value_type.IsHomogeneousAggregate (&base_type); 711 if (homogeneous_count > 0 && homogeneous_count <= 8) 712 { 713 // Make sure we have enough registers 714 if (NSRN < 8 && (8-NSRN) >= homogeneous_count) 715 { 716 if (!base_type) 717 return false; 718 const size_t base_byte_size = base_type.GetByteSize(nullptr); 719 uint32_t data_offset = 0; 720 721 for (uint32_t i=0; i<homogeneous_count; ++i) 722 { 723 char v_name[8]; 724 ::snprintf (v_name, sizeof(v_name), "v%u", NSRN); 725 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName(v_name, 0); 726 if (reg_info == nullptr) 727 return false; 728 729 if (base_byte_size > reg_info->byte_size) 730 return false; 731 732 RegisterValue reg_value; 733 734 if (!reg_ctx->ReadRegister(reg_info, reg_value)) 735 return false; 736 737 // Make sure we have enough room in "heap_data_ap" 738 if ((data_offset + base_byte_size) <= heap_data_ap->GetByteSize()) 739 { 740 const size_t bytes_copied = reg_value.GetAsMemoryData (reg_info, 741 heap_data_ap->GetBytes()+data_offset, 742 base_byte_size, 743 byte_order, 744 error); 745 if (bytes_copied != base_byte_size) 746 return false; 747 data_offset += bytes_copied; 748 ++NSRN; 749 } 750 else 751 return false; 752 } 753 data.SetByteOrder(byte_order); 754 data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize()); 755 data.SetData(DataBufferSP (heap_data_ap.release())); 756 return true; 757 } 758 } 759 760 const size_t max_reg_byte_size = 16; 761 if (byte_size <= max_reg_byte_size) 762 { 763 size_t bytes_left = byte_size; 764 uint32_t data_offset = 0; 765 while (data_offset < byte_size) 766 { 767 if (NGRN >= 8) 768 return false; 769 770 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + NGRN); 771 if (reg_info == nullptr) 772 return false; 773 774 RegisterValue reg_value; 775 776 if (!reg_ctx->ReadRegister(reg_info, reg_value)) 777 return false; 778 779 const size_t curr_byte_size = std::min<size_t>(8,bytes_left); 780 const size_t bytes_copied = reg_value.GetAsMemoryData (reg_info, heap_data_ap->GetBytes()+data_offset, curr_byte_size, byte_order, error); 781 if (bytes_copied == 0) 782 return false; 783 if (bytes_copied >= bytes_left) 784 break; 785 data_offset += bytes_copied; 786 bytes_left -= bytes_copied; 787 ++NGRN; 788 } 789 } 790 else 791 { 792 const RegisterInfo *reg_info = nullptr; 793 if (is_return_value) 794 { 795 // We are assuming we are decoding this immediately after returning 796 // from a function call and that the address of the structure is in x8 797 reg_info = reg_ctx->GetRegisterInfoByName("x8", 0); 798 } 799 else 800 { 801 // We are assuming we are stopped at the first instruction in a function 802 // and that the ABI is being respected so all parameters appear where they 803 // should be (functions with no external linkage can legally violate the ABI). 804 if (NGRN >= 8) 805 return false; 806 807 reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + NGRN); 808 if (reg_info == nullptr) 809 return false; 810 ++NGRN; 811 } 812 813 if (reg_info == nullptr) 814 return false; 815 816 const lldb::addr_t value_addr = reg_ctx->ReadRegisterAsUnsigned(reg_info, LLDB_INVALID_ADDRESS); 817 818 if (value_addr == LLDB_INVALID_ADDRESS) 819 return false; 820 821 if (exe_ctx.GetProcessRef().ReadMemory (value_addr, 822 heap_data_ap->GetBytes(), 823 heap_data_ap->GetByteSize(), 824 error) != heap_data_ap->GetByteSize()) 825 { 826 return false; 827 } 828 } 829 830 data.SetByteOrder(byte_order); 831 data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize()); 832 data.SetData(DataBufferSP (heap_data_ap.release())); 833 return true; 834} 835 836ValueObjectSP 837ABISysV_arm64::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const 838{ 839 ValueObjectSP return_valobj_sp; 840 Value value; 841 842 ExecutionContext exe_ctx (thread.shared_from_this()); 843 if (exe_ctx.GetTargetPtr() == nullptr || exe_ctx.GetProcessPtr() == nullptr) 844 return return_valobj_sp; 845 846 //value.SetContext (Value::eContextTypeClangType, return_compiler_type); 847 value.SetCompilerType(return_compiler_type); 848 849 RegisterContext *reg_ctx = thread.GetRegisterContext().get(); 850 if (!reg_ctx) 851 return return_valobj_sp; 852 853 const size_t byte_size = return_compiler_type.GetByteSize(nullptr); 854 855 const uint32_t type_flags = return_compiler_type.GetTypeInfo(nullptr); 856 if (type_flags & eTypeIsScalar || 857 type_flags & eTypeIsPointer) 858 { 859 value.SetValueType(Value::eValueTypeScalar); 860 861 bool success = false; 862 if (type_flags & eTypeIsInteger || 863 type_flags & eTypeIsPointer ) 864 { 865 // Extract the register context so we can read arguments from registers 866 if (byte_size <= 8) 867 { 868 const RegisterInfo *x0_reg_info = nullptr; 869 x0_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1); 870 if (x0_reg_info) 871 { 872 uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(x0_reg_info, 0); 873 const bool is_signed = (type_flags & eTypeIsSigned) != 0; 874 switch (byte_size) 875 { 876 default: 877 break; 878 case 16: // uint128_t 879 // In register x0 and x1 880 { 881 const RegisterInfo *x1_reg_info = nullptr; 882 x1_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2); 883 884 if (x1_reg_info) 885 { 886 if (byte_size <= x0_reg_info->byte_size + x1_reg_info->byte_size) 887 { 888 std::unique_ptr<DataBufferHeap> heap_data_ap (new DataBufferHeap(byte_size, 0)); 889 const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder(); 890 RegisterValue x0_reg_value; 891 RegisterValue x1_reg_value; 892 if (reg_ctx->ReadRegister(x0_reg_info, x0_reg_value) && 893 reg_ctx->ReadRegister(x1_reg_info, x1_reg_value)) 894 { 895 Error error; 896 if (x0_reg_value.GetAsMemoryData (x0_reg_info, heap_data_ap->GetBytes()+0, 8, byte_order, error) && 897 x1_reg_value.GetAsMemoryData (x1_reg_info, heap_data_ap->GetBytes()+8, 8, byte_order, error)) 898 { 899 DataExtractor data (DataBufferSP (heap_data_ap.release()), 900 byte_order, 901 exe_ctx.GetProcessRef().GetAddressByteSize()); 902 903 return_valobj_sp = ValueObjectConstResult::Create (&thread, 904 return_compiler_type, 905 ConstString(""), 906 data); 907 return return_valobj_sp; 908 } 909 } 910 } 911 } 912 } 913 break; 914 case sizeof(uint64_t): 915 if (is_signed) 916 value.GetScalar() = (int64_t)(raw_value); 917 else 918 value.GetScalar() = (uint64_t)(raw_value); 919 success = true; 920 break; 921 922 case sizeof(uint32_t): 923 if (is_signed) 924 value.GetScalar() = (int32_t)(raw_value & UINT32_MAX); 925 else 926 value.GetScalar() = (uint32_t)(raw_value & UINT32_MAX); 927 success = true; 928 break; 929 930 case sizeof(uint16_t): 931 if (is_signed) 932 value.GetScalar() = (int16_t)(raw_value & UINT16_MAX); 933 else 934 value.GetScalar() = (uint16_t)(raw_value & UINT16_MAX); 935 success = true; 936 break; 937 938 case sizeof(uint8_t): 939 if (is_signed) 940 value.GetScalar() = (int8_t)(raw_value & UINT8_MAX); 941 else 942 value.GetScalar() = (uint8_t)(raw_value & UINT8_MAX); 943 success = true; 944 break; 945 } 946 } 947 } 948 } 949 else if (type_flags & eTypeIsFloat) 950 { 951 if (type_flags & eTypeIsComplex) 952 { 953 // Don't handle complex yet. 954 } 955 else 956 { 957 if (byte_size <= sizeof(long double)) 958 { 959 const RegisterInfo *v0_reg_info = reg_ctx->GetRegisterInfoByName("v0", 0); 960 RegisterValue v0_value; 961 if (reg_ctx->ReadRegister (v0_reg_info, v0_value)) 962 { 963 DataExtractor data; 964 if (v0_value.GetData(data)) 965 { 966 lldb::offset_t offset = 0; 967 if (byte_size == sizeof(float)) 968 { 969 value.GetScalar() = data.GetFloat(&offset); 970 success = true; 971 } 972 else if (byte_size == sizeof(double)) 973 { 974 value.GetScalar() = data.GetDouble(&offset); 975 success = true; 976 } 977 else if (byte_size == sizeof(long double)) 978 { 979 value.GetScalar() = data.GetLongDouble(&offset); 980 success = true; 981 } 982 } 983 } 984 } 985 } 986 } 987 988 if (success) 989 return_valobj_sp = ValueObjectConstResult::Create (thread.GetStackFrameAtIndex(0).get(), 990 value, 991 ConstString("")); 992 } 993 else if (type_flags & eTypeIsVector) 994 { 995 if (byte_size > 0) 996 { 997 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0); 998 999 if (v0_info) 1000 { 1001 if (byte_size <= v0_info->byte_size) 1002 { 1003 std::unique_ptr<DataBufferHeap> heap_data_ap (new DataBufferHeap(byte_size, 0)); 1004 const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder(); 1005 RegisterValue reg_value; 1006 if (reg_ctx->ReadRegister(v0_info, reg_value)) 1007 { 1008 Error error; 1009 if (reg_value.GetAsMemoryData (v0_info, 1010 heap_data_ap->GetBytes(), 1011 heap_data_ap->GetByteSize(), 1012 byte_order, 1013 error)) 1014 { 1015 DataExtractor data (DataBufferSP (heap_data_ap.release()), 1016 byte_order, 1017 exe_ctx.GetProcessRef().GetAddressByteSize()); 1018 return_valobj_sp = ValueObjectConstResult::Create (&thread, 1019 return_compiler_type, 1020 ConstString(""), 1021 data); 1022 } 1023 } 1024 } 1025 } 1026 } 1027 } 1028 else if (type_flags & eTypeIsStructUnion || 1029 type_flags & eTypeIsClass) 1030 { 1031 DataExtractor data; 1032 1033 uint32_t NGRN = 0; // Search ABI docs for NGRN 1034 uint32_t NSRN = 0; // Search ABI docs for NSRN 1035 const bool is_return_value = true; 1036 if (LoadValueFromConsecutiveGPRRegisters (exe_ctx, reg_ctx, return_compiler_type, is_return_value, NGRN, NSRN, data)) 1037 { 1038 return_valobj_sp = ValueObjectConstResult::Create (&thread, 1039 return_compiler_type, 1040 ConstString(""), 1041 data); 1042 } 1043 } 1044 return return_valobj_sp; 1045} 1046 1047void 1048ABISysV_arm64::Initialize() 1049{ 1050 PluginManager::RegisterPlugin (GetPluginNameStatic(), 1051 "SysV ABI for AArch64 targets", 1052 CreateInstance); 1053} 1054 1055void 1056ABISysV_arm64::Terminate() 1057{ 1058 PluginManager::UnregisterPlugin (CreateInstance); 1059} 1060 1061lldb_private::ConstString 1062ABISysV_arm64::GetPluginNameStatic() 1063{ 1064 static ConstString g_name("SysV-arm64"); 1065 return g_name; 1066} 1067 1068//------------------------------------------------------------------ 1069// PluginInterface protocol 1070//------------------------------------------------------------------ 1071 1072ConstString 1073ABISysV_arm64::GetPluginName() 1074{ 1075 return GetPluginNameStatic(); 1076} 1077 1078uint32_t 1079ABISysV_arm64::GetPluginVersion() 1080{ 1081 return 1; 1082} 1083