Generate g for today's state of Go 1.21 (go1.21.0-15-g70aa116c4a).
Compared to Go1.20 new field parentGoid was added and tracing-related
fields were moved to gTraceState struct.

Regenerated files stay without changes for Go1.20 and previous releases.

---- 8< ----
diff --git a/zruntime_g_go1.20.go b/zruntime_g_go1.21.go
index 99f483a..c55d865 100644
--- a/zruntime_g_go1.20.go
+++ b/zruntime_g_go1.21.go
@@ -1,7 +1,7 @@
 // Code generated by g_typedef; DO NOT EDIT.

-//go:build go1.20 && !go1.21
-// +build go1.20,!go1.21
+//go:build go1.21 && !go1.22
+// +build go1.21,!go1.22

 package xruntime

@@ -69,20 +69,17 @@ type g struct {
 	parkingOnChan atomic.Bool

 	raceignore    int8  // ignore race detection events
-	sysblocktraced bool     // StartTrace has emitted EvGoInSyscall about this goroutine
 	tracking      bool  // whether we're tracking this G for sched latency statistics
 	trackingSeq   uint8 // used to decide whether to track this G
 	trackingStamp int64 // timestamp of when the G last started being tracked
 	runnableTime  int64 // the amount of time spent runnable, cleared when running, only used when tracking
-	sysexitticks   int64    // cputicks when syscall has returned (for tracing)
-	traceseq       uint64   // trace event sequencer
-	tracelastp     puintptr // last P emitted an event for this goroutine
 	lockedm       muintptr
 	sig           uint32
 	writebuf      []byte
 	sigcode0      uintptr
 	sigcode1      uintptr
 	sigpc         uintptr
+	parentGoid    uint64          // goid of goroutine that created this goroutine
 	gopc          uintptr         // pc of go statement that created this goroutine
 	ancestors     *[]ancestorInfo // ancestor information goroutine(s) that created this goroutine (only used if debug.tracebackancestors)
 	startpc       uintptr         // pc of goroutine function
@@ -97,6 +94,9 @@ type g struct {
 	// current in-progress goroutine profile
 	goroutineProfiled goroutineProfileStateHolder

+	// Per-G tracer state.
+	trace gTraceState
+
 	// gcAssistBytes is this G's GC assist credit in terms of
 	// bytes allocated. If this is positive, then the G has credit
 	// to allocate gcAssistBytes bytes without assisting. If this
@@ -202,6 +202,13 @@ type ancestorInfo struct {
 	gopc uintptr   // pc of go statement that created this goroutine
 }
 type goroutineProfileStateHolder atomic.Uint32
+type gTraceState struct {
+	sysExitTime        traceTime // timestamp when syscall has returned
+	tracedSyscallEnter bool      // syscall or cgo was entered while trace was enabled or StartTrace has emitted EvGoInSyscall about this goroutine
+	seq                uint64    // trace event sequencer
+	lastP              puintptr  // last P emitted an event for this goroutine
+}
+type traceTime uint64
 type uintreg uint          // FIXME wrong on amd64p32
 type m struct{}            // FIXME stub
 type sudog struct{}        // FIXME stub