4455d6a9ef
* Add support for windows/arm64 * split sentinel files and add winarm64 experiment * update loadBinaryInfoPE to support PIE binaries * skip TestDump on windows/arm64 * run windows/arm64 compilation on windows/amd64 * add entry point check for pie binaries * delete unusded code * document windows/arm64 breakpoint * implement changing windows/arm64 fp registers * update crosscall offset names * fix G load when using CGO * fix testvariablescgo * remove DerefGStructOffset * derefrence gstructoffset in GStructOffset() if necessary
73 lines
1.8 KiB
Go
73 lines
1.8 KiB
Go
package native
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import (
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"errors"
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"fmt"
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"unsafe"
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"github.com/go-delve/delve/pkg/proc"
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"github.com/go-delve/delve/pkg/proc/amd64util"
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"github.com/go-delve/delve/pkg/proc/winutil"
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)
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func newContext() *winutil.AMD64CONTEXT {
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return winutil.NewAMD64CONTEXT()
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}
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func registers(t *nativeThread) (proc.Registers, error) {
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context := newContext()
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context.SetFlags(_CONTEXT_ALL)
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err := t.getContext(context)
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if err != nil {
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return nil, err
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}
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var threadInfo _THREAD_BASIC_INFORMATION
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status := _NtQueryInformationThread(t.os.hThread, _ThreadBasicInformation, uintptr(unsafe.Pointer(&threadInfo)), uint32(unsafe.Sizeof(threadInfo)), nil)
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if !_NT_SUCCESS(status) {
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return nil, fmt.Errorf("NtQueryInformationThread failed: it returns 0x%x", status)
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}
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return winutil.NewAMD64Registers(context, uint64(threadInfo.TebBaseAddress)), nil
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}
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func (t *nativeThread) setContext(context *winutil.AMD64CONTEXT) error {
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return _SetThreadContext(t.os.hThread, context)
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}
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func (t *nativeThread) getContext(context *winutil.AMD64CONTEXT) error {
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return _GetThreadContext(t.os.hThread, context)
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}
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func (t *nativeThread) restoreRegisters(savedRegs proc.Registers) error {
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return t.setContext(savedRegs.(*winutil.AMD64Registers).Context)
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}
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func (t *nativeThread) withDebugRegisters(f func(*amd64util.DebugRegisters) error) error {
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if !enableHardwareBreakpoints {
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return errors.New("hardware breakpoints not supported")
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}
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context := winutil.NewAMD64CONTEXT()
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context.ContextFlags = _CONTEXT_DEBUG_REGISTERS
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err := t.getContext(context)
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if err != nil {
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return err
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}
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drs := amd64util.NewDebugRegisters(&context.Dr0, &context.Dr1, &context.Dr2, &context.Dr3, &context.Dr6, &context.Dr7)
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err = f(drs)
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if err != nil {
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return err
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}
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if drs.Dirty {
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return t.setContext(context)
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}
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return nil
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}
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