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提交 31fff845 编写于 作者: A aarzilli 提交者： Derek Parker
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proc: move windows register handling code to winutil package 

Move windows register handling code to winutil package in preparation
for using it in proc/core to read minidump files.
上级 3048b960
隐藏空白更改
内联 并排
Showing with 446 addition and 417 deletion
pkg/proc/native/registers_windows_amd64.go
浏览文件 @ 31fff845
......@@ -4,136 +4,13 @@ import (
"fmt"
"unsafe"
"golang.org/x/arch/x86/x86asm"
"github.com/derekparker/delve/pkg/proc"
"github.com/derekparker/delve/pkg/proc/winutil"
)
// Regs represents CPU registers on an AMD64 processor.
type Regs struct {
rax uint64
rbx uint64
rcx uint64
rdx uint64
rdi uint64
rsi uint64
rbp uint64
rsp uint64
r8 uint64
r9 uint64
r10 uint64
r11 uint64
r12 uint64
r13 uint64
r14 uint64
r15 uint64
rip uint64
eflags uint64
cs uint64
fs uint64
gs uint64
tls uint64
context *_CONTEXT
fltSave *_XMM_SAVE_AREA32
}
func (r *Regs) Slice() []proc.Register {
var regs = []struct {
k string
v uint64
}{
{"Rip", r.rip},
{"Rsp", r.rsp},
{"Rax", r.rax},
{"Rbx", r.rbx},
{"Rcx", r.rcx},
{"Rdx", r.rdx},
{"Rdi", r.rdi},
{"Rsi", r.rsi},
{"Rbp", r.rbp},
{"R8", r.r8},
{"R9", r.r9},
{"R10", r.r10},
{"R11", r.r11},
{"R12", r.r12},
{"R13", r.r13},
{"R14", r.r14},
{"R15", r.r15},
{"Eflags", r.eflags},
{"Cs", r.cs},
{"Fs", r.fs},
{"Gs", r.gs},
{"TLS", r.tls},
}
outlen := len(regs)
if r.fltSave != nil {
outlen += 6 + 8 + 2 + 16
}
out := make([]proc.Register, 0, outlen)
for _, reg := range regs {
if reg.k == "Eflags" {
out = proc.AppendEflagReg(out, reg.k, reg.v)
} else {
out = proc.AppendQwordReg(out, reg.k, reg.v)
}
}
if r.fltSave != nil {
out = proc.AppendWordReg(out, "CW", r.fltSave.ControlWord)
out = proc.AppendWordReg(out, "SW", r.fltSave.StatusWord)
out = proc.AppendWordReg(out, "TW", uint16(r.fltSave.TagWord))
out = proc.AppendWordReg(out, "FOP", r.fltSave.ErrorOpcode)
out = proc.AppendQwordReg(out, "FIP", uint64(r.fltSave.ErrorSelector)<<32|uint64(r.fltSave.ErrorOffset))
out = proc.AppendQwordReg(out, "FDP", uint64(r.fltSave.DataSelector)<<32|uint64(r.fltSave.DataOffset))
for i := range r.fltSave.FloatRegisters {
out = proc.AppendX87Reg(out, i, uint16(r.fltSave.FloatRegisters[i].High), r.fltSave.FloatRegisters[i].Low)
}
out = proc.AppendMxcsrReg(out, "MXCSR", uint64(r.fltSave.MxCsr))
out = proc.AppendDwordReg(out, "MXCSR_MASK", r.fltSave.MxCsr_Mask)
for i := 0; i < len(r.fltSave.XmmRegisters); i += 16 {
out = proc.AppendSSEReg(out, fmt.Sprintf("XMM%d", i/16), r.fltSave.XmmRegisters[i:i+16])
}
}
return out
}
// PC returns the current program counter
// i.e. the RIP CPU register.
func (r *Regs) PC() uint64 {
return r.rip
}
// SP returns the stack pointer location,
// i.e. the RSP register.
func (r *Regs) SP() uint64 {
return r.rsp
}
func (r *Regs) BP() uint64 {
return r.rbp
}
// CX returns the value of the RCX register.
func (r *Regs) CX() uint64 {
return r.rcx
}
// TLS returns the value of the register
// that contains the location of the thread
// local storage segment.
func (r *Regs) TLS() uint64 {
return r.tls
}
func (r *Regs) GAddr() (uint64, bool) {
return 0, false
}
// SetPC sets the RIP register to the value specified by `pc`.
func (thread *Thread) SetPC(pc uint64) error {
context := newCONTEXT()
context := winutil.NewCONTEXT()
context.ContextFlags = _CONTEXT_ALL
err := _GetThreadContext(thread.os.hThread, context)
......@@ -148,7 +25,7 @@ func (thread *Thread) SetPC(pc uint64) error {
// SetSP sets the RSP register to the value specified by `sp`.
func (thread *Thread) SetSP(sp uint64) error {
context := newCONTEXT()
context := winutil.NewCONTEXT()
context.ContextFlags = _CONTEXT_ALL
err := _GetThreadContext(thread.os.hThread, context)
......@@ -162,7 +39,7 @@ func (thread *Thread) SetSP(sp uint64) error {
}
func (thread *Thread) SetDX(dx uint64) error {
context := newCONTEXT()
context := winutil.NewCONTEXT()
context.ContextFlags = _CONTEXT_ALL
err := _GetThreadContext(thread.os.hThread, context)
......@@ -175,165 +52,8 @@ func (thread *Thread) SetDX(dx uint64) error {
return _SetThreadContext(thread.os.hThread, context)
}
func (r *Regs) Get(n int) (uint64, error) {
reg := x86asm.Reg(n)
const (
mask8 = 0x000f
mask16 = 0x00ff
mask32 = 0xffff
)
switch reg {
// 8-bit
case x86asm.AL:
return r.rax & mask8, nil
case x86asm.CL:
return r.rcx & mask8, nil
case x86asm.DL:
return r.rdx & mask8, nil
case x86asm.BL:
return r.rbx & mask8, nil
case x86asm.AH:
return (r.rax >> 8) & mask8, nil
case x86asm.CH:
return (r.rcx >> 8) & mask8, nil
case x86asm.DH:
return (r.rdx >> 8) & mask8, nil
case x86asm.BH:
return (r.rbx >> 8) & mask8, nil
case x86asm.SPB:
return r.rsp & mask8, nil
case x86asm.BPB:
return r.rbp & mask8, nil
case x86asm.SIB:
return r.rsi & mask8, nil
case x86asm.DIB:
return r.rdi & mask8, nil
case x86asm.R8B:
return r.r8 & mask8, nil
case x86asm.R9B:
return r.r9 & mask8, nil
case x86asm.R10B:
return r.r10 & mask8, nil
case x86asm.R11B:
return r.r11 & mask8, nil
case x86asm.R12B:
return r.r12 & mask8, nil
case x86asm.R13B:
return r.r13 & mask8, nil
case x86asm.R14B:
return r.r14 & mask8, nil
case x86asm.R15B:
return r.r15 & mask8, nil
// 16-bit
case x86asm.AX:
return r.rax & mask16, nil
case x86asm.CX:
return r.rcx & mask16, nil
case x86asm.DX:
return r.rdx & mask16, nil
case x86asm.BX:
return r.rbx & mask16, nil
case x86asm.SP:
return r.rsp & mask16, nil
case x86asm.BP:
return r.rbp & mask16, nil
case x86asm.SI:
return r.rsi & mask16, nil
case x86asm.DI:
return r.rdi & mask16, nil
case x86asm.R8W:
return r.r8 & mask16, nil
case x86asm.R9W:
return r.r9 & mask16, nil
case x86asm.R10W:
return r.r10 & mask16, nil
case x86asm.R11W:
return r.r11 & mask16, nil
case x86asm.R12W:
return r.r12 & mask16, nil
case x86asm.R13W:
return r.r13 & mask16, nil
case x86asm.R14W:
return r.r14 & mask16, nil
case x86asm.R15W:
return r.r15 & mask16, nil
// 32-bit
case x86asm.EAX:
return r.rax & mask32, nil
case x86asm.ECX:
return r.rcx & mask32, nil
case x86asm.EDX:
return r.rdx & mask32, nil
case x86asm.EBX:
return r.rbx & mask32, nil
case x86asm.ESP:
return r.rsp & mask32, nil
case x86asm.EBP:
return r.rbp & mask32, nil
case x86asm.ESI:
return r.rsi & mask32, nil
case x86asm.EDI:
return r.rdi & mask32, nil
case x86asm.R8L:
return r.r8 & mask32, nil
case x86asm.R9L:
return r.r9 & mask32, nil
case x86asm.R10L:
return r.r10 & mask32, nil
case x86asm.R11L:
return r.r11 & mask32, nil
case x86asm.R12L:
return r.r12 & mask32, nil
case x86asm.R13L:
return r.r13 & mask32, nil
case x86asm.R14L:
return r.r14 & mask32, nil
case x86asm.R15L:
return r.r15 & mask32, nil
// 64-bit
case x86asm.RAX:
return r.rax, nil
case x86asm.RCX:
return r.rcx, nil
case x86asm.RDX:
return r.rdx, nil
case x86asm.RBX:
return r.rbx, nil
case x86asm.RSP:
return r.rsp, nil
case x86asm.RBP:
return r.rbp, nil
case x86asm.RSI:
return r.rsi, nil
case x86asm.RDI:
return r.rdi, nil
case x86asm.R8:
return r.r8, nil
case x86asm.R9:
return r.r9, nil
case x86asm.R10:
return r.r10, nil
case x86asm.R11:
return r.r11, nil
case x86asm.R12:
return r.r12, nil
case x86asm.R13:
return r.r13, nil
case x86asm.R14:
return r.r14, nil
case x86asm.R15:
return r.r15, nil
}
return 0, proc.ErrUnknownRegister
}
func registers(thread *Thread, floatingPoint bool) (proc.Registers, error) {
context := newCONTEXT()
context := winutil.NewCONTEXT()
context.ContextFlags = _CONTEXT_ALL
err := _GetThreadContext(thread.os.hThread, context)
......@@ -347,44 +67,5 @@ func registers(thread *Thread, floatingPoint bool) (proc.Registers, error) {
return nil, fmt.Errorf("NtQueryInformationThread failed: it returns 0x%x", status)
}
regs := &Regs{
rax: uint64(context.Rax),
rbx: uint64(context.Rbx),
rcx: uint64(context.Rcx),
rdx: uint64(context.Rdx),
rdi: uint64(context.Rdi),
rsi: uint64(context.Rsi),
rbp: uint64(context.Rbp),
rsp: uint64(context.Rsp),
r8: uint64(context.R8),
r9: uint64(context.R9),
r10: uint64(context.R10),
r11: uint64(context.R11),
r12: uint64(context.R12),
r13: uint64(context.R13),
r14: uint64(context.R14),
r15: uint64(context.R15),
rip: uint64(context.Rip),
eflags: uint64(context.EFlags),
cs: uint64(context.SegCs),
fs: uint64(context.SegFs),
gs: uint64(context.SegGs),
tls: uint64(threadInfo.TebBaseAddress),
}
if floatingPoint {
regs.fltSave = &context.FltSave
}
regs.context = context
return regs, nil
}
func (r *Regs) Copy() proc.Registers {
var rr Regs
rr = *r
rr.context = newCONTEXT()
*(rr.context) = *(r.context)
rr.fltSave = &rr.context.FltSave
return &rr
return winutil.NewAMD64Registers(context, uint64(threadInfo.TebBaseAddress), floatingPoint), nil
}
pkg/proc/native/syscall_windows.go
浏览文件 @ 31fff845
......@@ -4,6 +4,8 @@ package native
import (
"syscall"
"github.com/derekparker/delve/pkg/proc/winutil"
)
type _NTSTATUS int32
......@@ -97,6 +99,11 @@ func _NT_SUCCESS(x _NTSTATUS) bool {
return x >= 0
}
// zsyscall_windows.go, an autogenerated file, wants to refer to the context
// structure as _CONTEXT, but we need to have it in pkg/proc/winutil.CONTEXT
// because it's also used on non-windows operating systems.
type _CONTEXT = winutil.CONTEXT
//sys _NtQueryInformationThread(threadHandle syscall.Handle, infoclass int32, info uintptr, infolen uint32, retlen *uint32) (status _NTSTATUS) = ntdll.NtQueryInformationThread
//sys _GetThreadContext(thread syscall.Handle, context *_CONTEXT) (err error) = kernel32.GetThreadContext
//sys _SetThreadContext(thread syscall.Handle, context *_CONTEXT) (err error) = kernel32.SetThreadContext
......
pkg/proc/native/syscall_windows_amd64.go
浏览文件 @ 31fff845
package native
import "unsafe"
const (
_CONTEXT_AMD64 = 0x100000
_CONTEXT_CONTROL = (_CONTEXT_AMD64 | 0x1)
......@@ -17,94 +15,6 @@ const (
_CONTEXT_EXCEPTION_REPORTING = 0x80000000
)
type _M128A struct {
Low uint64
High int64
}
type _XMM_SAVE_AREA32 struct {
ControlWord uint16
StatusWord uint16
TagWord byte
Reserved1 byte
ErrorOpcode uint16
ErrorOffset uint32
ErrorSelector uint16
Reserved2 uint16
DataOffset uint32
DataSelector uint16
Reserved3 uint16
MxCsr uint32
MxCsr_Mask uint32
FloatRegisters [8]_M128A
XmmRegisters [256]byte
Reserved4 [96]byte
}
type _CONTEXT struct {
P1Home uint64
P2Home uint64
P3Home uint64
P4Home uint64
P5Home uint64
P6Home uint64
ContextFlags uint32
MxCsr uint32
SegCs uint16
SegDs uint16
SegEs uint16
SegFs uint16
SegGs uint16
SegSs uint16
EFlags uint32
Dr0 uint64
Dr1 uint64
Dr2 uint64
Dr3 uint64
Dr6 uint64
Dr7 uint64
Rax uint64
Rcx uint64
Rdx uint64
Rbx uint64
Rsp uint64
Rbp uint64
Rsi uint64
Rdi uint64
R8 uint64
R9 uint64
R10 uint64
R11 uint64
R12 uint64
R13 uint64
R14 uint64
R15 uint64
Rip uint64
FltSave _XMM_SAVE_AREA32
VectorRegister [26]_M128A
VectorControl uint64
DebugControl uint64
LastBranchToRip uint64
LastBranchFromRip uint64
LastExceptionToRip uint64
LastExceptionFromRip uint64
}
// newCONTEXT allocates Windows CONTEXT structure aligned to 16 bytes.
func newCONTEXT() *_CONTEXT {
var c *_CONTEXT
buf := make([]byte, unsafe.Sizeof(*c)+15)
return (*_CONTEXT)(unsafe.Pointer((uintptr(unsafe.Pointer(&buf[15]))) &^ 15))
}
type _DEBUG_EVENT struct {
DebugEventCode uint32
ProcessId uint32
......
pkg/proc/native/threads_windows.go
浏览文件 @ 31fff845
......@@ -7,6 +7,7 @@ import (
sys "golang.org/x/sys/windows"
"github.com/derekparker/delve/pkg/proc"
"github.com/derekparker/delve/pkg/proc/winutil"
)
// WaitStatus is a synonym for the platform-specific WaitStatus
......@@ -19,7 +20,7 @@ type OSSpecificDetails struct {
}
func (t *Thread) singleStep() error {
context := newCONTEXT()
context := winutil.NewCONTEXT()
context.ContextFlags = _CONTEXT_ALL
// Set the processor TRAP flag
......@@ -154,5 +155,5 @@ func (t *Thread) ReadMemory(buf []byte, addr uintptr) (int, error) {
}
func (t *Thread) restoreRegisters(savedRegs proc.Registers) error {
return _SetThreadContext(t.os.hThread, savedRegs.(*Regs).context)
return _SetThreadContext(t.os.hThread, savedRegs.(*winutil.AMD64Registers).Context)
}
pkg/proc/winutil/regs.go 0 → 100644
浏览文件 @ 31fff845
package winutil
import (
"fmt"
"unsafe"
"golang.org/x/arch/x86/x86asm"
"github.com/derekparker/delve/pkg/proc"
)
// AMD64Registers represents CPU registers on an AMD64 processor.
type AMD64Registers struct {
rax uint64
rbx uint64
rcx uint64
rdx uint64
rdi uint64
rsi uint64
rbp uint64
rsp uint64
r8 uint64
r9 uint64
r10 uint64
r11 uint64
r12 uint64
r13 uint64
r14 uint64
r15 uint64
rip uint64
eflags uint64
cs uint64
fs uint64
gs uint64
tls uint64
Context *CONTEXT
fltSave *XMM_SAVE_AREA32
}
// NewAMD64Registers creates a new AMD64Registers struct from a CONTEXT
// struct and the TEB base address of the thread.
func NewAMD64Registers(context *CONTEXT, TebBaseAddress uint64, floatingPoint bool) *AMD64Registers {
regs := &AMD64Registers{
rax: uint64(context.Rax),
rbx: uint64(context.Rbx),
rcx: uint64(context.Rcx),
rdx: uint64(context.Rdx),
rdi: uint64(context.Rdi),
rsi: uint64(context.Rsi),
rbp: uint64(context.Rbp),
rsp: uint64(context.Rsp),
r8: uint64(context.R8),
r9: uint64(context.R9),
r10: uint64(context.R10),
r11: uint64(context.R11),
r12: uint64(context.R12),
r13: uint64(context.R13),
r14: uint64(context.R14),
r15: uint64(context.R15),
rip: uint64(context.Rip),
eflags: uint64(context.EFlags),
cs: uint64(context.SegCs),
fs: uint64(context.SegFs),
gs: uint64(context.SegGs),
tls: TebBaseAddress,
}
if floatingPoint {
regs.fltSave = &context.FltSave
}
regs.Context = context
return regs
}
// Slice returns the registers as a list of (name, value) pairs.
func (r *AMD64Registers) Slice() []proc.Register {
var regs = []struct {
k string
v uint64
}{
{"Rip", r.rip},
{"Rsp", r.rsp},
{"Rax", r.rax},
{"Rbx", r.rbx},
{"Rcx", r.rcx},
{"Rdx", r.rdx},
{"Rdi", r.rdi},
{"Rsi", r.rsi},
{"Rbp", r.rbp},
{"R8", r.r8},
{"R9", r.r9},
{"R10", r.r10},
{"R11", r.r11},
{"R12", r.r12},
{"R13", r.r13},
{"R14", r.r14},
{"R15", r.r15},
{"Eflags", r.eflags},
{"Cs", r.cs},
{"Fs", r.fs},
{"Gs", r.gs},
{"TLS", r.tls},
}
outlen := len(regs)
if r.fltSave != nil {
outlen += 6 + 8 + 2 + 16
}
out := make([]proc.Register, 0, outlen)
for _, reg := range regs {
if reg.k == "Eflags" {
out = proc.AppendEflagReg(out, reg.k, reg.v)
} else {
out = proc.AppendQwordReg(out, reg.k, reg.v)
}
}
if r.fltSave != nil {
out = proc.AppendWordReg(out, "CW", r.fltSave.ControlWord)
out = proc.AppendWordReg(out, "SW", r.fltSave.StatusWord)
out = proc.AppendWordReg(out, "TW", uint16(r.fltSave.TagWord))
out = proc.AppendWordReg(out, "FOP", r.fltSave.ErrorOpcode)
out = proc.AppendQwordReg(out, "FIP", uint64(r.fltSave.ErrorSelector)<<32|uint64(r.fltSave.ErrorOffset))
out = proc.AppendQwordReg(out, "FDP", uint64(r.fltSave.DataSelector)<<32|uint64(r.fltSave.DataOffset))
for i := range r.fltSave.FloatRegisters {
out = proc.AppendX87Reg(out, i, uint16(r.fltSave.FloatRegisters[i].High), r.fltSave.FloatRegisters[i].Low)
}
out = proc.AppendMxcsrReg(out, "MXCSR", uint64(r.fltSave.MxCsr))
out = proc.AppendDwordReg(out, "MXCSR_MASK", r.fltSave.MxCsr_Mask)
for i := 0; i < len(r.fltSave.XmmRegisters); i += 16 {
out = proc.AppendSSEReg(out, fmt.Sprintf("XMM%d", i/16), r.fltSave.XmmRegisters[i:i+16])
}
}
return out
}
// PC returns the current program counter
// i.e. the RIP CPU register.
func (r *AMD64Registers) PC() uint64 {
return r.rip
}
// SP returns the stack pointer location,
// i.e. the RSP register.
func (r *AMD64Registers) SP() uint64 {
return r.rsp
}
func (r *AMD64Registers) BP() uint64 {
return r.rbp
}
// CX returns the value of the RCX register.
func (r *AMD64Registers) CX() uint64 {
return r.rcx
}
// TLS returns the value of the register
// that contains the location of the thread
// local storage segment.
func (r *AMD64Registers) TLS() uint64 {
return r.tls
}
// GAddr returns the address of the G variable if it is known, 0 and false
// otherwise.
func (r *AMD64Registers) GAddr() (uint64, bool) {
return 0, false
}
// Get returns the value of the n-th register (in x86asm order).
func (r *AMD64Registers) Get(n int) (uint64, error) {
reg := x86asm.Reg(n)
const (
mask8 = 0x000f
mask16 = 0x00ff
mask32 = 0xffff
)
switch reg {
// 8-bit
case x86asm.AL:
return r.rax & mask8, nil
case x86asm.CL:
return r.rcx & mask8, nil
case x86asm.DL:
return r.rdx & mask8, nil
case x86asm.BL:
return r.rbx & mask8, nil
case x86asm.AH:
return (r.rax >> 8) & mask8, nil
case x86asm.CH:
return (r.rcx >> 8) & mask8, nil
case x86asm.DH:
return (r.rdx >> 8) & mask8, nil
case x86asm.BH:
return (r.rbx >> 8) & mask8, nil
case x86asm.SPB:
return r.rsp & mask8, nil
case x86asm.BPB:
return r.rbp & mask8, nil
case x86asm.SIB:
return r.rsi & mask8, nil
case x86asm.DIB:
return r.rdi & mask8, nil
case x86asm.R8B:
return r.r8 & mask8, nil
case x86asm.R9B:
return r.r9 & mask8, nil
case x86asm.R10B:
return r.r10 & mask8, nil
case x86asm.R11B:
return r.r11 & mask8, nil
case x86asm.R12B:
return r.r12 & mask8, nil
case x86asm.R13B:
return r.r13 & mask8, nil
case x86asm.R14B:
return r.r14 & mask8, nil
case x86asm.R15B:
return r.r15 & mask8, nil
// 16-bit
case x86asm.AX:
return r.rax & mask16, nil
case x86asm.CX:
return r.rcx & mask16, nil
case x86asm.DX:
return r.rdx & mask16, nil
case x86asm.BX:
return r.rbx & mask16, nil
case x86asm.SP:
return r.rsp & mask16, nil
case x86asm.BP:
return r.rbp & mask16, nil
case x86asm.SI:
return r.rsi & mask16, nil
case x86asm.DI:
return r.rdi & mask16, nil
case x86asm.R8W:
return r.r8 & mask16, nil
case x86asm.R9W:
return r.r9 & mask16, nil
case x86asm.R10W:
return r.r10 & mask16, nil
case x86asm.R11W:
return r.r11 & mask16, nil
case x86asm.R12W:
return r.r12 & mask16, nil
case x86asm.R13W:
return r.r13 & mask16, nil
case x86asm.R14W:
return r.r14 & mask16, nil
case x86asm.R15W:
return r.r15 & mask16, nil
// 32-bit
case x86asm.EAX:
return r.rax & mask32, nil
case x86asm.ECX:
return r.rcx & mask32, nil
case x86asm.EDX:
return r.rdx & mask32, nil
case x86asm.EBX:
return r.rbx & mask32, nil
case x86asm.ESP:
return r.rsp & mask32, nil
case x86asm.EBP:
return r.rbp & mask32, nil
case x86asm.ESI:
return r.rsi & mask32, nil
case x86asm.EDI:
return r.rdi & mask32, nil
case x86asm.R8L:
return r.r8 & mask32, nil
case x86asm.R9L:
return r.r9 & mask32, nil
case x86asm.R10L:
return r.r10 & mask32, nil
case x86asm.R11L:
return r.r11 & mask32, nil
case x86asm.R12L:
return r.r12 & mask32, nil
case x86asm.R13L:
return r.r13 & mask32, nil
case x86asm.R14L:
return r.r14 & mask32, nil
case x86asm.R15L:
return r.r15 & mask32, nil
// 64-bit
case x86asm.RAX:
return r.rax, nil
case x86asm.RCX:
return r.rcx, nil
case x86asm.RDX:
return r.rdx, nil
case x86asm.RBX:
return r.rbx, nil
case x86asm.RSP:
return r.rsp, nil
case x86asm.RBP:
return r.rbp, nil
case x86asm.RSI:
return r.rsi, nil
case x86asm.RDI:
return r.rdi, nil
case x86asm.R8:
return r.r8, nil
case x86asm.R9:
return r.r9, nil
case x86asm.R10:
return r.r10, nil
case x86asm.R11:
return r.r11, nil
case x86asm.R12:
return r.r12, nil
case x86asm.R13:
return r.r13, nil
case x86asm.R14:
return r.r14, nil
case x86asm.R15:
return r.r15, nil
}
return 0, proc.ErrUnknownRegister
}
// Copy returns a copy of these registers that is guarenteed not to change.
func (r *AMD64Registers) Copy() proc.Registers {
var rr AMD64Registers
rr = *r
rr.Context = NewCONTEXT()
*(rr.Context) = *(r.Context)
rr.fltSave = &rr.Context.FltSave
return &rr
}
// M128A tracks the _M128A windows struct.
type M128A struct {
Low uint64
High int64
}
// XMM_SAVE_AREA32 tracks the _XMM_SAVE_AREA32 windows struct.
type XMM_SAVE_AREA32 struct {
ControlWord uint16
StatusWord uint16
TagWord byte
Reserved1 byte
ErrorOpcode uint16
ErrorOffset uint32
ErrorSelector uint16
Reserved2 uint16
DataOffset uint32
DataSelector uint16
Reserved3 uint16
MxCsr uint32
MxCsr_Mask uint32
FloatRegisters [8]M128A
XmmRegisters [256]byte
Reserved4 [96]byte
}
// CONTEXT tracks the _CONTEXT of windows.
type CONTEXT struct {
P1Home uint64
P2Home uint64
P3Home uint64
P4Home uint64
P5Home uint64
P6Home uint64
ContextFlags uint32
MxCsr uint32
SegCs uint16
SegDs uint16
SegEs uint16
SegFs uint16
SegGs uint16
SegSs uint16
EFlags uint32
Dr0 uint64
Dr1 uint64
Dr2 uint64
Dr3 uint64
Dr6 uint64
Dr7 uint64
Rax uint64
Rcx uint64
Rdx uint64
Rbx uint64
Rsp uint64
Rbp uint64
Rsi uint64
Rdi uint64
R8 uint64
R9 uint64
R10 uint64
R11 uint64
R12 uint64
R13 uint64
R14 uint64
R15 uint64
Rip uint64
FltSave XMM_SAVE_AREA32
VectorRegister [26]M128A
VectorControl uint64
DebugControl uint64
LastBranchToRip uint64
LastBranchFromRip uint64
LastExceptionToRip uint64
LastExceptionFromRip uint64
}
// NewCONTEXT allocates Windows CONTEXT structure aligned to 16 bytes.
func NewCONTEXT() *CONTEXT {
var c *CONTEXT
buf := make([]byte, unsafe.Sizeof(*c)+15)
return (*CONTEXT)(unsafe.Pointer((uintptr(unsafe.Pointer(&buf[15]))) &^ 15))
}
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