200994bc8f
Changes implementations of proc.Registers interface and the op.DwarfRegisters struct so that floating point registers can be loaded only when they are needed. Removes the floatingPoint parameter from proc.Thread.Registers. This accomplishes three things: 1. it simplifies the proc.Thread.Registers interface 2. it makes it impossible to accidentally create a broken set of saved registers or of op.DwarfRegisters by accidentally calling Registers(false) 3. it improves general performance of Delve by avoiding to load floating point registers as much as possible Floating point registers are loaded under two circumstances: 1. When the Slice method is called with floatingPoint == true 2. When the Copy method is called Benchmark before: BenchmarkConditionalBreakpoints-4 1 4327350142 ns/op Benchmark after: BenchmarkConditionalBreakpoints-4 1 3852642917 ns/op Updates #1549
133 lines
3.2 KiB
Go
133 lines
3.2 KiB
Go
//+build darwin,!macnative
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package native
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import (
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"errors"
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"sync"
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"github.com/go-delve/delve/pkg/proc"
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)
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var ErrNativeBackendDisabled = errors.New("native backend disabled during compilation")
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// Launch returns ErrNativeBackendDisabled.
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func Launch(_ []string, _ string, _ bool, _ []string, _ string) (*proc.Target, error) {
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return nil, ErrNativeBackendDisabled
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}
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// Attach returns ErrNativeBackendDisabled.
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func Attach(_ int, _ []string) (*proc.Target, error) {
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return nil, ErrNativeBackendDisabled
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}
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// waitStatus is a synonym for the platform-specific WaitStatus
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type waitStatus struct{}
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// osSpecificDetails holds information specific to the OSX/Darwin
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// operating system / kernel.
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type osSpecificDetails struct{}
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// osProcessDetails holds Darwin specific information.
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type osProcessDetails struct{}
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func findExecutable(path string, pid int) string {
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panic(ErrNativeBackendDisabled)
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}
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func killProcess(pid int) error {
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panic(ErrNativeBackendDisabled)
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}
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func registers(thread *nativeThread) (proc.Registers, error) {
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panic(ErrNativeBackendDisabled)
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}
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func (dbp *nativeProcess) loadProcessInformation(wg *sync.WaitGroup) {
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panic(ErrNativeBackendDisabled)
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}
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func (dbp *nativeProcess) requestManualStop() (err error) {
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panic(ErrNativeBackendDisabled)
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}
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func (dbp *nativeProcess) resume() error {
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panic(ErrNativeBackendDisabled)
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}
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func (dbp *nativeProcess) trapWait(pid int) (*nativeThread, error) {
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panic(ErrNativeBackendDisabled)
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}
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func (dbp *nativeProcess) stop(trapthread *nativeThread) (err error) {
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panic(ErrNativeBackendDisabled)
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}
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func (dbp *nativeProcess) updateThreadList() error {
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panic(ErrNativeBackendDisabled)
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}
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func (dbp *nativeProcess) kill() (err error) {
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panic(ErrNativeBackendDisabled)
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}
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func (dbp *nativeProcess) detach(kill bool) error {
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panic(ErrNativeBackendDisabled)
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}
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// EntryPoint returns the entry point for the process,
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// useful for PIEs.
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func (dbp *nativeProcess) EntryPoint() (uint64, error) {
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panic(ErrNativeBackendDisabled)
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}
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// Blocked returns true if the thread is blocked
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func (t *nativeThread) Blocked() bool {
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panic(ErrNativeBackendDisabled)
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}
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// SetPC sets the value of the PC register.
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func (t *nativeThread) SetPC(pc uint64) error {
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panic(ErrNativeBackendDisabled)
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}
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// SetSP sets the value of the SP register.
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func (t *nativeThread) SetSP(sp uint64) error {
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panic(ErrNativeBackendDisabled)
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}
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// SetDX sets the value of the DX register.
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func (t *nativeThread) SetDX(dx uint64) error {
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panic(ErrNativeBackendDisabled)
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}
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// ReadMemory reads len(buf) bytes at addr into buf.
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func (t *nativeThread) ReadMemory(buf []byte, addr uintptr) (int, error) {
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panic(ErrNativeBackendDisabled)
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}
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// WriteMemory writes the contents of data at addr.
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func (t *nativeThread) WriteMemory(addr uintptr, data []byte) (int, error) {
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panic(ErrNativeBackendDisabled)
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}
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func (t *nativeThread) resume() error {
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panic(ErrNativeBackendDisabled)
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}
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func (t *nativeThread) singleStep() error {
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panic(ErrNativeBackendDisabled)
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}
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func (t *nativeThread) restoreRegisters(sr proc.Registers) error {
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panic(ErrNativeBackendDisabled)
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}
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// Stopped returns whether the thread is stopped at
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// the operating system level.
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func (t *nativeThread) Stopped() bool {
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panic(ErrNativeBackendDisabled)
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}
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func initialize(dbp *nativeProcess) error { return nil }
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