func runtime.dumpGCProg 2 uses runtime (current package) mbitmap.go#L1445: dumpGCProg(addb(typ.gcdata, 4)) mbitmap.go#L1879: func dumpGCProg(p *byte) {
The pages are generated with Golds v0.2.8-preview. (GOOS=darwin GOARCH=arm64)