diff options
Diffstat (limited to 'lldb/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp')
| -rw-r--r-- | lldb/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/lldb/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp b/lldb/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp new file mode 100644 index 00000000000..103cff4a2a5 --- /dev/null +++ b/lldb/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp @@ -0,0 +1,323 @@ +//===-- RegisterContextWindows_x64.cpp --------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "lldb/lldb-private-types.h" +#include "lldb/Core/Error.h" +#include "lldb/Core/RegisterValue.h" +#include "lldb/Host/windows/HostThreadWindows.h" +#include "lldb/Host/windows/windows.h" + +#include "lldb-x86-register-enums.h" +#include "RegisterContext_x86.h" +#include "RegisterContextWindows_x64.h" +#include "TargetThreadWindows.h" + +#include "llvm/ADT/STLExtras.h" + +using namespace lldb; +using namespace lldb_private; + +#define DEFINE_GPR(reg, alt) #reg, alt, 8, 0, eEncodingUint, eFormatHexUppercase +#define DEFINE_GPR_BIN(reg, alt) #reg, alt, 8, 0, eEncodingUint, eFormatBinary + +namespace +{ + +// This enum defines the layout of the global RegisterInfo array. This is necessary because +// lldb register sets are defined in terms of indices into the register array. As such, the +// order of RegisterInfos defined in global registers array must match the order defined here. +// When defining the register set layouts, these values can appear in an arbitrary order, and that +// determines the order that register values are displayed in a dump. +enum RegisterIndex +{ + eRegisterIndexRax, + eRegisterIndexRbx, + eRegisterIndexRcx, + eRegisterIndexRdx, + eRegisterIndexRdi, + eRegisterIndexRsi, + eRegisterIndexR8, + eRegisterIndexR9, + eRegisterIndexR10, + eRegisterIndexR11, + eRegisterIndexR12, + eRegisterIndexR13, + eRegisterIndexR14, + eRegisterIndexR15, + eRegisterIndexRbp, + eRegisterIndexRsp, + eRegisterIndexRip, + eRegisterIndexRflags +}; + +// Array of all register information supported by Windows x86 +RegisterInfo g_register_infos[] = { + // Macro auto defines most stuff eh_frame DWARF GENERIC + // GDB LLDB VALUE REGS INVALIDATE REGS + // ================================ ========================= ====================== ========================= + // =================== ================= ========== =============== + {DEFINE_GPR(rax, nullptr), + {dwarf_rax_x86_64, dwarf_rax_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_rax_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(rbx, nullptr), + {dwarf_rbx_x86_64, dwarf_rbx_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_rbx_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(rcx, nullptr), + {dwarf_rcx_x86_64, dwarf_rcx_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_rcx_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(rdx, nullptr), + {dwarf_rdx_x86_64, dwarf_rdx_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_rdx_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(rdi, nullptr), + {dwarf_rdi_x86_64, dwarf_rdi_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_rdi_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(rsi, nullptr), + {dwarf_rsi_x86_64, dwarf_rsi_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_rsi_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(r8, nullptr), + {dwarf_r8_x86_64, dwarf_r8_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_r8_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(r9, nullptr), + {dwarf_r9_x86_64, dwarf_r9_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_r9_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(r10, nullptr), + {dwarf_r10_x86_64, dwarf_r10_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_r10_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(r11, nullptr), + {dwarf_r11_x86_64, dwarf_r11_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_r11_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(r12, nullptr), + {dwarf_r12_x86_64, dwarf_r12_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_r12_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(r13, nullptr), + {dwarf_r13_x86_64, dwarf_r13_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_r13_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(r14, nullptr), + {dwarf_r14_x86_64, dwarf_r14_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_r14_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(r15, nullptr), + {dwarf_r15_x86_64, dwarf_r15_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_r15_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(rbp, "fp"), + {dwarf_rbp_x86_64, dwarf_rbp_x86_64, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM, lldb_rbp_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(rsp, "sp"), + {dwarf_rsp_x86_64, dwarf_rsp_x86_64, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM, lldb_rsp_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR(rip, "pc"), + {dwarf_rip_x86_64, dwarf_rip_x86_64, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM, lldb_rip_x86_64}, + nullptr, + nullptr}, + {DEFINE_GPR_BIN(eflags, "flags"), + {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM, lldb_rflags_x86_64}, + nullptr, + nullptr}, +}; + +// Array of lldb register numbers used to define the set of all General Purpose Registers +uint32_t g_gpr_reg_indices[] = {eRegisterIndexRax, eRegisterIndexRbx, eRegisterIndexRcx, eRegisterIndexRdx, + eRegisterIndexRdi, eRegisterIndexRsi, eRegisterIndexR8, eRegisterIndexR9, + eRegisterIndexR10, eRegisterIndexR11, eRegisterIndexR12, eRegisterIndexR13, + eRegisterIndexR14, eRegisterIndexR15, eRegisterIndexRbp, eRegisterIndexRsp, + eRegisterIndexRip, eRegisterIndexRflags}; + +RegisterSet g_register_sets[] = { + {"General Purpose Registers", "gpr", llvm::array_lengthof(g_gpr_reg_indices), g_gpr_reg_indices}, +}; +} + +//------------------------------------------------------------------ +// Constructors and Destructors +//------------------------------------------------------------------ +RegisterContextWindows_x64::RegisterContextWindows_x64(Thread &thread, uint32_t concrete_frame_idx) + : RegisterContextWindows(thread, concrete_frame_idx) +{ +} + +RegisterContextWindows_x64::~RegisterContextWindows_x64() +{ +} + +size_t +RegisterContextWindows_x64::GetRegisterCount() +{ + return llvm::array_lengthof(g_register_infos); +} + +const RegisterInfo * +RegisterContextWindows_x64::GetRegisterInfoAtIndex(size_t reg) +{ + return &g_register_infos[reg]; +} + +size_t +RegisterContextWindows_x64::GetRegisterSetCount() +{ + return llvm::array_lengthof(g_register_sets); +} + +const RegisterSet * +RegisterContextWindows_x64::GetRegisterSet(size_t reg_set) +{ + return &g_register_sets[reg_set]; +} + +bool +RegisterContextWindows_x64::ReadRegister(const RegisterInfo *reg_info, RegisterValue ®_value) +{ + if (!CacheAllRegisterValues()) + return false; + + switch (reg_info->kinds[eRegisterKindLLDB]) + { + case lldb_rax_x86_64: + reg_value.SetUInt64(m_context.Rax); + break; + case lldb_rbx_x86_64: + reg_value.SetUInt64(m_context.Rbx); + break; + case lldb_rcx_x86_64: + reg_value.SetUInt64(m_context.Rcx); + break; + case lldb_rdx_x86_64: + reg_value.SetUInt64(m_context.Rdx); + break; + case lldb_rdi_x86_64: + reg_value.SetUInt64(m_context.Rdi); + break; + case lldb_rsi_x86_64: + reg_value.SetUInt64(m_context.Rsi); + break; + case lldb_r8_x86_64: + reg_value.SetUInt64(m_context.R8); + break; + case lldb_r9_x86_64: + reg_value.SetUInt64(m_context.R9); + break; + case lldb_r10_x86_64: + reg_value.SetUInt64(m_context.R10); + break; + case lldb_r11_x86_64: + reg_value.SetUInt64(m_context.R11); + break; + case lldb_r12_x86_64: + reg_value.SetUInt64(m_context.R12); + break; + case lldb_r13_x86_64: + reg_value.SetUInt64(m_context.R13); + break; + case lldb_r14_x86_64: + reg_value.SetUInt64(m_context.R14); + break; + case lldb_r15_x86_64: + reg_value.SetUInt64(m_context.R15); + break; + case lldb_rbp_x86_64: + reg_value.SetUInt64(m_context.Rbp); + break; + case lldb_rsp_x86_64: + reg_value.SetUInt64(m_context.Rsp); + break; + case lldb_rip_x86_64: + reg_value.SetUInt64(m_context.Rip); + break; + case lldb_rflags_x86_64: + reg_value.SetUInt64(m_context.EFlags); + break; + } + return true; +} + +bool +RegisterContextWindows_x64::WriteRegister(const RegisterInfo *reg_info, const RegisterValue ®_value) +{ + // Since we cannot only write a single register value to the inferior, we need to make sure + // our cached copy of the register values are fresh. Otherwise when writing EAX, for example, + // we may also overwrite some other register with a stale value. + if (!CacheAllRegisterValues()) + return false; + + switch (reg_info->kinds[eRegisterKindLLDB]) + { + case lldb_rax_x86_64: + m_context.Rax = reg_value.GetAsUInt64(); + break; + case lldb_rbx_x86_64: + m_context.Rbx = reg_value.GetAsUInt64(); + break; + case lldb_rcx_x86_64: + m_context.Rcx = reg_value.GetAsUInt64(); + break; + case lldb_rdx_x86_64: + m_context.Rdx = reg_value.GetAsUInt64(); + break; + case lldb_rdi_x86_64: + m_context.Rdi = reg_value.GetAsUInt64(); + break; + case lldb_rsi_x86_64: + m_context.Rsi = reg_value.GetAsUInt64(); + break; + case lldb_r8_x86_64: + m_context.R8 = reg_value.GetAsUInt64(); + break; + case lldb_r9_x86_64: + m_context.R9 = reg_value.GetAsUInt64(); + break; + case lldb_r10_x86_64: + m_context.R10 = reg_value.GetAsUInt64(); + break; + case lldb_r11_x86_64: + m_context.R11 = reg_value.GetAsUInt64(); + break; + case lldb_r12_x86_64: + m_context.R12 = reg_value.GetAsUInt64(); + break; + case lldb_r13_x86_64: + m_context.R13 = reg_value.GetAsUInt64(); + break; + case lldb_r14_x86_64: + m_context.R14 = reg_value.GetAsUInt64(); + break; + case lldb_r15_x86_64: + m_context.R15 = reg_value.GetAsUInt64(); + break; + case lldb_rbp_x86_64: + m_context.Rbp = reg_value.GetAsUInt64(); + break; + case lldb_rsp_x86_64: + m_context.Rsp = reg_value.GetAsUInt64(); + break; + case lldb_rip_x86_64: + m_context.Rip = reg_value.GetAsUInt64(); + break; + case lldb_rflags_x86_64: + m_context.EFlags = reg_value.GetAsUInt64(); + break; + } + + // Physically update the registers in the target process. + TargetThreadWindows &wthread = static_cast<TargetThreadWindows &>(m_thread); + return ::SetThreadContext(wthread.GetHostThread().GetNativeThread().GetSystemHandle(), &m_context); +} |
