| //===-- RegisterContextMinidump_x86_32.h ------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef liblldb_RegisterContextMinidump_x86_32_h_ |
| #define liblldb_RegisterContextMinidump_x86_32_h_ |
| |
| // Project includes |
| #include "MinidumpTypes.h" |
| |
| // Other libraries and framework includes |
| #include "Plugins/Process/Utility/RegisterInfoInterface.h" |
| #include "Plugins/Process/Utility/lldb-x86-register-enums.h" |
| |
| #include "lldb/Target/RegisterContext.h" |
| |
| #include "llvm/ADT/ArrayRef.h" |
| #include "llvm/ADT/BitmaskEnum.h" |
| #include "llvm/Support/Endian.h" |
| |
| // C includes |
| // C++ includes |
| |
| namespace lldb_private { |
| |
| namespace minidump { |
| |
| // This function receives an ArrayRef pointing to the bytes of the Minidump |
| // register context and returns a DataBuffer that's ordered by the offsets |
| // specified in the RegisterInfoInterface argument |
| // This way we can reuse the already existing register contexts |
| lldb::DataBufferSP |
| ConvertMinidumpContext_x86_32(llvm::ArrayRef<uint8_t> source_data, |
| RegisterInfoInterface *target_reg_interface); |
| |
| // Reference: see breakpad/crashpad source or WinNT.h |
| struct MinidumpFloatingSaveAreaX86 { |
| llvm::support::ulittle32_t control_word; |
| llvm::support::ulittle32_t status_word; |
| llvm::support::ulittle32_t tag_word; |
| llvm::support::ulittle32_t error_offset; |
| llvm::support::ulittle32_t error_selector; |
| llvm::support::ulittle32_t data_offset; |
| llvm::support::ulittle32_t data_selector; |
| |
| enum { |
| RegisterAreaSize = 80, |
| }; |
| // register_area contains eight 80-bit (x87 "long double") quantities for |
| // floating-point registers %st0 (%mm0) through %st7 (%mm7). |
| uint8_t register_area[RegisterAreaSize]; |
| llvm::support::ulittle32_t cr0_npx_state; |
| }; |
| |
| struct MinidumpContext_x86_32 { |
| // The context_flags field determines which parts |
| // of the structure are populated (have valid values) |
| llvm::support::ulittle32_t context_flags; |
| |
| // The next 6 registers are included with |
| // MinidumpContext_x86_32_Flags::DebugRegisters |
| llvm::support::ulittle32_t dr0; |
| llvm::support::ulittle32_t dr1; |
| llvm::support::ulittle32_t dr2; |
| llvm::support::ulittle32_t dr3; |
| llvm::support::ulittle32_t dr6; |
| llvm::support::ulittle32_t dr7; |
| |
| // The next field is included with |
| // MinidumpContext_x86_32_Flags::FloatingPoint |
| MinidumpFloatingSaveAreaX86 float_save; |
| |
| // The next 4 registers are included with |
| // MinidumpContext_x86_32_Flags::Segments |
| llvm::support::ulittle32_t gs; |
| llvm::support::ulittle32_t fs; |
| llvm::support::ulittle32_t es; |
| llvm::support::ulittle32_t ds; |
| |
| // The next 6 registers are included with |
| // MinidumpContext_x86_32_Flags::Integer |
| llvm::support::ulittle32_t edi; |
| llvm::support::ulittle32_t esi; |
| llvm::support::ulittle32_t ebx; |
| llvm::support::ulittle32_t edx; |
| llvm::support::ulittle32_t ecx; |
| llvm::support::ulittle32_t eax; |
| |
| // The next 6 registers are included with |
| // MinidumpContext_x86_32_Flags::Control |
| llvm::support::ulittle32_t ebp; |
| llvm::support::ulittle32_t eip; |
| llvm::support::ulittle32_t cs; // WinNT.h says "must be sanitized" |
| llvm::support::ulittle32_t eflags; // WinNT.h says "must be sanitized" |
| llvm::support::ulittle32_t esp; |
| llvm::support::ulittle32_t ss; |
| |
| // The next field is included with |
| // MinidumpContext_x86_32_Flags::ExtendedRegisters |
| // It contains vector (MMX/SSE) registers. It it laid out in the |
| // format used by the fxsave and fsrstor instructions, so it includes |
| // a copy of the x87 floating-point registers as well. See FXSAVE in |
| // "Intel Architecture Software Developer's Manual, Volume 2." |
| enum { |
| ExtendedRegistersSize = 512, |
| }; |
| uint8_t extended_registers[ExtendedRegistersSize]; |
| }; |
| |
| LLVM_ENABLE_BITMASK_ENUMS_IN_NAMESPACE(); |
| |
| // For context_flags. These values indicate the type of |
| // context stored in the structure. The high 24 bits identify the CPU, the |
| // low 8 bits identify the type of context saved. |
| enum class MinidumpContext_x86_32_Flags : uint32_t { |
| x86_32_Flag = 0x00010000, // CONTEXT_i386, CONTEXT_i486 |
| Control = x86_32_Flag | 0x00000001, |
| Integer = x86_32_Flag | 0x00000002, |
| Segments = x86_32_Flag | 0x00000004, |
| FloatingPoint = x86_32_Flag | 0x00000008, |
| DebugRegisters = x86_32_Flag | 0x00000010, |
| ExtendedRegisters = x86_32_Flag | 0x00000020, |
| XState = x86_32_Flag | 0x00000040, |
| |
| Full = Control | Integer | Segments, |
| All = Full | FloatingPoint | DebugRegisters | ExtendedRegisters, |
| |
| LLVM_MARK_AS_BITMASK_ENUM(/* LargestValue = */ All) |
| }; |
| |
| } // end namespace minidump |
| } // end namespace lldb_private |
| #endif // liblldb_RegisterContextMinidump_x86_32_h_ |