//===-- ABISysV_arm64.cpp ---------------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "ABISysV_arm64.h" // C Includes // C++ Includes #include // Other libraries and framework includes #include "llvm/ADT/STLExtras.h" #include "llvm/ADT/Triple.h" // Project includes #include "lldb/Core/ConstString.h" #include "lldb/Core/Error.h" #include "lldb/Core/Log.h" #include "lldb/Core/Module.h" #include "lldb/Core/PluginManager.h" #include "lldb/Core/RegisterValue.h" #include "lldb/Core/Scalar.h" #include "lldb/Core/Value.h" #include "lldb/Core/ValueObjectConstResult.h" #include "lldb/Symbol/UnwindPlan.h" #include "lldb/Target/Process.h" #include "lldb/Target/RegisterContext.h" #include "lldb/Target/Target.h" #include "lldb/Target/Thread.h" #include "Utility/ARM64_DWARF_Registers.h" using namespace lldb; using namespace lldb_private; static RegisterInfo g_register_infos[] = { // NAME ALT SZ OFF ENCODING FORMAT EH_FRAME DWARF GENERIC PROCESS PLUGIN LLDB NATIVE // ========== ======= == === ============= =================== =================== ====================== =========================== ======================= ====================== { "x0", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x0, LLDB_REGNUM_GENERIC_ARG1, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x1", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x1, LLDB_REGNUM_GENERIC_ARG2, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x2", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x2, LLDB_REGNUM_GENERIC_ARG3, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x3", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x3, LLDB_REGNUM_GENERIC_ARG4, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x4", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x4, LLDB_REGNUM_GENERIC_ARG5, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x5", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x5, LLDB_REGNUM_GENERIC_ARG6, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x6", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x6, LLDB_REGNUM_GENERIC_ARG7, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x7", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x7, LLDB_REGNUM_GENERIC_ARG8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x8", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x9", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x9, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x10", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x10, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x11", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x11, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x12", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x12, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x13", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x13, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x14", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x14, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x15", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x15, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x16", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x16, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x17", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x17, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x18", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x18, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x19", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x19, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x20", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x20, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x21", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x21, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x22", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x22, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x23", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x23, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x24", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x24, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x25", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x25, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x26", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x26, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x27", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x27, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "x28", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x28, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "fp", "x29", 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x29, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "lr", "x30", 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x30, LLDB_REGNUM_GENERIC_RA, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "sp", "x31", 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::x31, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "pc", nullptr, 8, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::pc, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "cpsr", "psr", 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, arm64_dwarf::cpsr, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v0", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v0, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v1", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v1, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v2", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v2, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v3", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v3, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v4", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v4, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v5", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v5, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v6", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v6, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v7", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v7, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v8", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v8, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v9", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v9, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v10", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v10, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v11", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v11, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v12", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v12, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v13", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v13, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v14", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v14, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v15", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v15, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v16", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v16, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v17", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v17, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v18", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v18, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v19", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v19, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v20", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v20, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v21", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v21, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v22", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v22, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v23", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v23, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v24", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v24, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v25", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v25, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v26", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v26, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v27", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v27, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v28", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v28, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v29", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v29, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v30", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v30, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "v31", nullptr, 16, 0, eEncodingVector , eFormatVectorOfUInt8, { LLDB_INVALID_REGNUM, arm64_dwarf::v31, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "fpsr", nullptr, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "fpcr", nullptr, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s0", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s1", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s2", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s3", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s4", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s5", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s6", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s7", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s8", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s9", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s10", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s11", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s12", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s13", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s14", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s15", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s16", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s17", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s18", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s19", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s20", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s21", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s22", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s23", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s24", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s25", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s26", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s27", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s28", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s29", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s30", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "s31", nullptr, 4, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d0", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d1", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d2", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d3", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d4", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d5", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d6", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d7", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d8", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d9", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d10", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d11", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d12", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d13", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d14", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d15", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d16", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d17", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d18", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d19", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d20", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d21", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d22", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d23", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d24", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d25", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d26", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d27", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d28", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d29", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d30", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr }, { "d31", nullptr, 8, 0, eEncodingIEEE754 , eFormatFloat , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, nullptr, nullptr } }; static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos); static bool g_register_info_names_constified = false; const lldb_private::RegisterInfo * ABISysV_arm64::GetRegisterInfoArray (uint32_t &count) { // Make the C-string names and alt_names for the register infos into const // C-string values by having the ConstString unique the names in the global // constant C-string pool. if (!g_register_info_names_constified) { g_register_info_names_constified = true; for (uint32_t i=0; i args) const { RegisterContext *reg_ctx = thread.GetRegisterContext().get(); if (!reg_ctx) return false; Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); if (log) { StreamString s; s.Printf("ABISysV_x86_64::PrepareTrivialCall (tid = 0x%" PRIx64 ", sp = 0x%" PRIx64 ", func_addr = 0x%" PRIx64 ", return_addr = 0x%" PRIx64, thread.GetID(), (uint64_t)sp, (uint64_t)func_addr, (uint64_t)return_addr); for (size_t i = 0; i < args.size(); ++i) s.Printf (", arg%d = 0x%" PRIx64, static_cast(i + 1), args[i]); s.PutCString (")"); log->PutCString(s.GetString().c_str()); } // x0 - x7 contain first 8 simple args if (args.size() > 8) return false; for (size_t i = 0; i < args.size(); ++i) { const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + i); if (log) log->Printf("About to write arg%d (0x%" PRIx64 ") into %s", static_cast(i + 1), args[i], reg_info->name); if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, args[i])) return false; } // Set "lr" to the return address if (!reg_ctx->WriteRegisterFromUnsigned (reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA), return_addr)) return false; // Set "sp" to the requested value if (!reg_ctx->WriteRegisterFromUnsigned (reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP), sp)) return false; // Set "pc" to the address requested if (!reg_ctx->WriteRegisterFromUnsigned (reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC), func_addr)) return false; return true; } //TODO: We dont support fp/SIMD arguments in v0-v7 bool ABISysV_arm64::GetArgumentValues (Thread &thread, ValueList &values) const { uint32_t num_values = values.GetSize(); ExecutionContext exe_ctx (thread.shared_from_this()); // Extract the register context so we can read arguments from registers RegisterContext *reg_ctx = thread.GetRegisterContext().get(); if (!reg_ctx) return false; addr_t sp = 0; for (uint32_t value_idx = 0; value_idx < num_values; ++value_idx) { // We currently only support extracting values with Clang QualTypes. // Do we care about others? Value *value = values.GetValueAtIndex(value_idx); if (!value) return false; CompilerType value_type = value->GetCompilerType(); if (value_type) { bool is_signed = false; size_t bit_width = 0; if (value_type.IsIntegerOrEnumerationType (is_signed)) { bit_width = value_type.GetBitSize(&thread); } else if (value_type.IsPointerOrReferenceType ()) { bit_width = value_type.GetBitSize(&thread); } else { // We only handle integer, pointer and reference types currently... return false; } if (bit_width <= (exe_ctx.GetProcessRef().GetAddressByteSize() * 8)) { if (value_idx < 8) { // Arguments 1-8 are in x0-x7... const RegisterInfo *reg_info = nullptr; reg_info= reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + value_idx); if (reg_info) { RegisterValue reg_value; if (reg_ctx->ReadRegister(reg_info, reg_value)) { if (is_signed) reg_value.SignExtend(bit_width); if (!reg_value.GetScalarValue(value->GetScalar())) return false; continue; } } return false; } else { //TODO: Verify for stack layout for SysV if (sp == 0) { // Read the stack pointer if we already haven't read it sp = reg_ctx->GetSP(0); if (sp == 0) return false; } // Arguments 5 on up are on the stack const uint32_t arg_byte_size = (bit_width + (8-1)) / 8; Error error; if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory(sp, arg_byte_size, is_signed, value->GetScalar(), error)) return false; sp += arg_byte_size; // Align up to the next 8 byte boundary if needed if (sp % 8) { sp >>= 3; sp += 1; sp <<= 3; } } } } } return true; } Error ABISysV_arm64::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value_sp) { Error error; if (!new_value_sp) { error.SetErrorString("Empty value object for return value."); return error; } CompilerType return_value_type = new_value_sp->GetCompilerType(); if (!return_value_type) { error.SetErrorString ("Null clang type for return value."); return error; } Thread *thread = frame_sp->GetThread().get(); RegisterContext *reg_ctx = thread->GetRegisterContext().get(); if (reg_ctx) { DataExtractor data; Error data_error; const uint64_t byte_size = new_value_sp->GetData(data, data_error); if (data_error.Fail()) { error.SetErrorStringWithFormat("Couldn't convert return value to raw data: %s", data_error.AsCString()); return error; } const uint32_t type_flags = return_value_type.GetTypeInfo(nullptr); if (type_flags & eTypeIsScalar || type_flags & eTypeIsPointer) { if (type_flags & eTypeIsInteger || type_flags & eTypeIsPointer ) { // Extract the register context so we can read arguments from registers lldb::offset_t offset = 0; if (byte_size <= 16) { const RegisterInfo *x0_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1); if (byte_size <= 8) { uint64_t raw_value = data.GetMaxU64(&offset, byte_size); if (!reg_ctx->WriteRegisterFromUnsigned (x0_info, raw_value)) error.SetErrorString ("failed to write register x0"); } else { uint64_t raw_value = data.GetMaxU64(&offset, 8); if (reg_ctx->WriteRegisterFromUnsigned (x0_info, raw_value)) { const RegisterInfo *x1_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2); raw_value = data.GetMaxU64(&offset, byte_size - offset); if (!reg_ctx->WriteRegisterFromUnsigned (x1_info, raw_value)) error.SetErrorString ("failed to write register x1"); } } } else { error.SetErrorString("We don't support returning longer than 128 bit integer values at present."); } } else if (type_flags & eTypeIsFloat) { if (type_flags & eTypeIsComplex) { // Don't handle complex yet. error.SetErrorString ("returning complex float values are not supported"); } else { const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0); if (v0_info) { if (byte_size <= 16) { if (byte_size <= RegisterValue::GetMaxByteSize()) { RegisterValue reg_value; error = reg_value.SetValueFromData (v0_info, data, 0, true); if (error.Success()) { if (!reg_ctx->WriteRegister (v0_info, reg_value)) error.SetErrorString ("failed to write register v0"); } } else { error.SetErrorStringWithFormat ("returning float values with a byte size of %" PRIu64 " are not supported", byte_size); } } else { error.SetErrorString("returning float values longer than 128 bits are not supported"); } } else { error.SetErrorString("v0 register is not available on this target"); } } } } else if (type_flags & eTypeIsVector) { if (byte_size > 0) { const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0); if (v0_info) { if (byte_size <= v0_info->byte_size) { RegisterValue reg_value; error = reg_value.SetValueFromData (v0_info, data, 0, true); if (error.Success()) { if (!reg_ctx->WriteRegister (v0_info, reg_value)) error.SetErrorString ("failed to write register v0"); } } } } } } else { error.SetErrorString("no registers are available"); } return error; } bool ABISysV_arm64::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan) { unwind_plan.Clear(); unwind_plan.SetRegisterKind (eRegisterKindDWARF); uint32_t lr_reg_num = arm64_dwarf::lr; uint32_t sp_reg_num = arm64_dwarf::sp; uint32_t pc_reg_num = arm64_dwarf::pc; UnwindPlan::RowSP row(new UnwindPlan::Row); // Our previous Call Frame Address is the stack pointer row->GetCFAValue().SetIsRegisterPlusOffset (sp_reg_num, 0); // Our previous PC is in the LR row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true); unwind_plan.AppendRow (row); // All other registers are the same. unwind_plan.SetSourceName ("arm64 at-func-entry default"); unwind_plan.SetSourcedFromCompiler (eLazyBoolNo); return true; } bool ABISysV_arm64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan) { unwind_plan.Clear(); unwind_plan.SetRegisterKind (eRegisterKindDWARF); uint32_t fp_reg_num = arm64_dwarf::fp; uint32_t pc_reg_num = arm64_dwarf::pc; UnwindPlan::RowSP row(new UnwindPlan::Row); const int32_t ptr_size = 8; row->GetCFAValue().SetIsRegisterPlusOffset (fp_reg_num, 2 * ptr_size); row->SetOffset (0); row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true); row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true); unwind_plan.AppendRow (row); unwind_plan.SetSourceName ("arm64 default unwind plan"); unwind_plan.SetSourcedFromCompiler (eLazyBoolNo); unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo); return true; } // AAPCS64 (Procedure Call Standard for the ARM 64-bit Architecture) says // registers x19 through x28 and sp are callee preserved. // v8-v15 are non-volatile (and specifically only the lower 8 bytes of these regs), // the rest of the fp/SIMD registers are volatile. // We treat x29 as callee preserved also, else the unwinder won't try to // retrieve fp saves. bool ABISysV_arm64::RegisterIsVolatile (const RegisterInfo *reg_info) { if (reg_info) { const char *name = reg_info->name; // Sometimes we'll be called with the "alternate" name for these registers; // recognize them as non-volatile. if (name[0] == 'p' && name[1] == 'c') // pc return false; if (name[0] == 'f' && name[1] == 'p') // fp return false; if (name[0] == 's' && name[1] == 'p') // sp return false; if (name[0] == 'l' && name[1] == 'r') // lr return false; if (name[0] == 'x') { // Volatile registers: x0-x18 // Although documentation says only x19-28 + sp are callee saved // We ll also have to treat x30 as non-volatile. // Each dwarf frame has its own value of lr. // Return false for the non-volatile gpr regs, true for everything else switch (name[1]) { case '1': switch (name[2]) { case '9': return false; // x19 is non-volatile default: return true; } break; case '2': switch (name[2]) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': return false; // x20 - 28 are non-volatile case '9': return false; // x29 aka fp treat as non-volatile default: return true; } case '3': // x30 (lr) and x31 (sp) treat as non-volatile if (name[2] == '0' || name[2] == '1') return false; break; default: return true; // all volatile cases not handled above fall here. } } else if (name[0] == 'v' || name[0] == 's' || name[0] == 'd') { // Volatile registers: v0-7, v16-v31 // Return false for non-volatile fp/SIMD regs, true for everything else switch (name[1]) { case '8': case '9': return false; // v8-v9 are non-volatile case '1': switch (name[2]) { case '0': case '1': case '2': case '3': case '4': case '5': return false; // v10-v15 are non-volatile default: return true; } default: return true; } } } return true; } static bool LoadValueFromConsecutiveGPRRegisters (ExecutionContext &exe_ctx, RegisterContext *reg_ctx, const CompilerType &value_type, bool is_return_value, // false => parameter, true => return value uint32_t &NGRN, // NGRN (see ABI documentation) uint32_t &NSRN, // NSRN (see ABI documentation) DataExtractor &data) { const size_t byte_size = value_type.GetByteSize(nullptr); if (byte_size == 0) return false; std::unique_ptr heap_data_ap (new DataBufferHeap(byte_size, 0)); const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder(); Error error; CompilerType base_type; const uint32_t homogeneous_count = value_type.IsHomogeneousAggregate (&base_type); if (homogeneous_count > 0 && homogeneous_count <= 8) { // Make sure we have enough registers if (NSRN < 8 && (8-NSRN) >= homogeneous_count) { if (!base_type) return false; const size_t base_byte_size = base_type.GetByteSize(nullptr); uint32_t data_offset = 0; for (uint32_t i=0; iGetRegisterInfoByName(v_name, 0); if (reg_info == nullptr) return false; if (base_byte_size > reg_info->byte_size) return false; RegisterValue reg_value; if (!reg_ctx->ReadRegister(reg_info, reg_value)) return false; // Make sure we have enough room in "heap_data_ap" if ((data_offset + base_byte_size) <= heap_data_ap->GetByteSize()) { const size_t bytes_copied = reg_value.GetAsMemoryData (reg_info, heap_data_ap->GetBytes()+data_offset, base_byte_size, byte_order, error); if (bytes_copied != base_byte_size) return false; data_offset += bytes_copied; ++NSRN; } else return false; } data.SetByteOrder(byte_order); data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize()); data.SetData(DataBufferSP (heap_data_ap.release())); return true; } } const size_t max_reg_byte_size = 16; if (byte_size <= max_reg_byte_size) { size_t bytes_left = byte_size; uint32_t data_offset = 0; while (data_offset < byte_size) { if (NGRN >= 8) return false; const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + NGRN); if (reg_info == nullptr) return false; RegisterValue reg_value; if (!reg_ctx->ReadRegister(reg_info, reg_value)) return false; const size_t curr_byte_size = std::min(8,bytes_left); const size_t bytes_copied = reg_value.GetAsMemoryData (reg_info, heap_data_ap->GetBytes()+data_offset, curr_byte_size, byte_order, error); if (bytes_copied == 0) return false; if (bytes_copied >= bytes_left) break; data_offset += bytes_copied; bytes_left -= bytes_copied; ++NGRN; } } else { const RegisterInfo *reg_info = nullptr; if (is_return_value) { // We are assuming we are decoding this immediately after returning // from a function call and that the address of the structure is in x8 reg_info = reg_ctx->GetRegisterInfoByName("x8", 0); } else { // We are assuming we are stopped at the first instruction in a function // and that the ABI is being respected so all parameters appear where they // should be (functions with no external linkage can legally violate the ABI). if (NGRN >= 8) return false; reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + NGRN); if (reg_info == nullptr) return false; ++NGRN; } if (reg_info == nullptr) return false; const lldb::addr_t value_addr = reg_ctx->ReadRegisterAsUnsigned(reg_info, LLDB_INVALID_ADDRESS); if (value_addr == LLDB_INVALID_ADDRESS) return false; if (exe_ctx.GetProcessRef().ReadMemory (value_addr, heap_data_ap->GetBytes(), heap_data_ap->GetByteSize(), error) != heap_data_ap->GetByteSize()) { return false; } } data.SetByteOrder(byte_order); data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize()); data.SetData(DataBufferSP (heap_data_ap.release())); return true; } ValueObjectSP ABISysV_arm64::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_compiler_type) const { ValueObjectSP return_valobj_sp; Value value; ExecutionContext exe_ctx (thread.shared_from_this()); if (exe_ctx.GetTargetPtr() == nullptr || exe_ctx.GetProcessPtr() == nullptr) return return_valobj_sp; //value.SetContext (Value::eContextTypeClangType, return_compiler_type); value.SetCompilerType(return_compiler_type); RegisterContext *reg_ctx = thread.GetRegisterContext().get(); if (!reg_ctx) return return_valobj_sp; const size_t byte_size = return_compiler_type.GetByteSize(nullptr); const uint32_t type_flags = return_compiler_type.GetTypeInfo(nullptr); if (type_flags & eTypeIsScalar || type_flags & eTypeIsPointer) { value.SetValueType(Value::eValueTypeScalar); bool success = false; if (type_flags & eTypeIsInteger || type_flags & eTypeIsPointer ) { // Extract the register context so we can read arguments from registers if (byte_size <= 8) { const RegisterInfo *x0_reg_info = nullptr; x0_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1); if (x0_reg_info) { uint64_t raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(x0_reg_info, 0); const bool is_signed = (type_flags & eTypeIsSigned) != 0; switch (byte_size) { default: break; case 16: // uint128_t // In register x0 and x1 { const RegisterInfo *x1_reg_info = nullptr; x1_reg_info = reg_ctx->GetRegisterInfo (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2); if (x1_reg_info) { if (byte_size <= x0_reg_info->byte_size + x1_reg_info->byte_size) { std::unique_ptr heap_data_ap (new DataBufferHeap(byte_size, 0)); const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder(); RegisterValue x0_reg_value; RegisterValue x1_reg_value; if (reg_ctx->ReadRegister(x0_reg_info, x0_reg_value) && reg_ctx->ReadRegister(x1_reg_info, x1_reg_value)) { Error error; if (x0_reg_value.GetAsMemoryData (x0_reg_info, heap_data_ap->GetBytes()+0, 8, byte_order, error) && x1_reg_value.GetAsMemoryData (x1_reg_info, heap_data_ap->GetBytes()+8, 8, byte_order, error)) { DataExtractor data (DataBufferSP (heap_data_ap.release()), byte_order, exe_ctx.GetProcessRef().GetAddressByteSize()); return_valobj_sp = ValueObjectConstResult::Create (&thread, return_compiler_type, ConstString(""), data); return return_valobj_sp; } } } } } break; case sizeof(uint64_t): if (is_signed) value.GetScalar() = (int64_t)(raw_value); else value.GetScalar() = (uint64_t)(raw_value); success = true; break; case sizeof(uint32_t): if (is_signed) value.GetScalar() = (int32_t)(raw_value & UINT32_MAX); else value.GetScalar() = (uint32_t)(raw_value & UINT32_MAX); success = true; break; case sizeof(uint16_t): if (is_signed) value.GetScalar() = (int16_t)(raw_value & UINT16_MAX); else value.GetScalar() = (uint16_t)(raw_value & UINT16_MAX); success = true; break; case sizeof(uint8_t): if (is_signed) value.GetScalar() = (int8_t)(raw_value & UINT8_MAX); else value.GetScalar() = (uint8_t)(raw_value & UINT8_MAX); success = true; break; } } } } else if (type_flags & eTypeIsFloat) { if (type_flags & eTypeIsComplex) { // Don't handle complex yet. } else { if (byte_size <= sizeof(long double)) { const RegisterInfo *v0_reg_info = reg_ctx->GetRegisterInfoByName("v0", 0); RegisterValue v0_value; if (reg_ctx->ReadRegister (v0_reg_info, v0_value)) { DataExtractor data; if (v0_value.GetData(data)) { lldb::offset_t offset = 0; if (byte_size == sizeof(float)) { value.GetScalar() = data.GetFloat(&offset); success = true; } else if (byte_size == sizeof(double)) { value.GetScalar() = data.GetDouble(&offset); success = true; } else if (byte_size == sizeof(long double)) { value.GetScalar() = data.GetLongDouble(&offset); success = true; } } } } } } if (success) return_valobj_sp = ValueObjectConstResult::Create (thread.GetStackFrameAtIndex(0).get(), value, ConstString("")); } else if (type_flags & eTypeIsVector) { if (byte_size > 0) { const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0); if (v0_info) { if (byte_size <= v0_info->byte_size) { std::unique_ptr heap_data_ap (new DataBufferHeap(byte_size, 0)); const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder(); RegisterValue reg_value; if (reg_ctx->ReadRegister(v0_info, reg_value)) { Error error; if (reg_value.GetAsMemoryData (v0_info, heap_data_ap->GetBytes(), heap_data_ap->GetByteSize(), byte_order, error)) { DataExtractor data (DataBufferSP (heap_data_ap.release()), byte_order, exe_ctx.GetProcessRef().GetAddressByteSize()); return_valobj_sp = ValueObjectConstResult::Create (&thread, return_compiler_type, ConstString(""), data); } } } } } } else if (type_flags & eTypeIsStructUnion || type_flags & eTypeIsClass) { DataExtractor data; uint32_t NGRN = 0; // Search ABI docs for NGRN uint32_t NSRN = 0; // Search ABI docs for NSRN const bool is_return_value = true; if (LoadValueFromConsecutiveGPRRegisters (exe_ctx, reg_ctx, return_compiler_type, is_return_value, NGRN, NSRN, data)) { return_valobj_sp = ValueObjectConstResult::Create (&thread, return_compiler_type, ConstString(""), data); } } return return_valobj_sp; } void ABISysV_arm64::Initialize() { PluginManager::RegisterPlugin (GetPluginNameStatic(), "SysV ABI for AArch64 targets", CreateInstance); } void ABISysV_arm64::Terminate() { PluginManager::UnregisterPlugin (CreateInstance); } lldb_private::ConstString ABISysV_arm64::GetPluginNameStatic() { static ConstString g_name("SysV-arm64"); return g_name; } //------------------------------------------------------------------ // PluginInterface protocol //------------------------------------------------------------------ ConstString ABISysV_arm64::GetPluginName() { return GetPluginNameStatic(); } uint32_t ABISysV_arm64::GetPluginVersion() { return 1; }