// Don't report {single,multi}checker debugging
		// flags or fix as these have no effect on unitchecker
		// (as invoked by 'go vet').
		switch f.Name {
		case "debug", "cpuprofile", "memprofile", "trace", "fix":
			return
		}

		b, ok := f.Value.(interface{ IsBoolFlag() bool })
		isBool := ok && b.IsBoolFlag()
		flags = append(flags, jsonFlag{f.Name, isBool, f.Usage})
	})

				sb2.AddUint8(0)
			}
		}

		// Set runtime.disableMemoryProfiling bool if
		// runtime.MemProfile is not retained in the binary after
		// deadcode (and we're not dynamically linking).
		memProfile := ctxt.loader.Lookup("runtime.MemProfile", abiInternalVer)
		if memProfile != 0 && !ctxt.loader.AttrReachable(memProfile) && !ctxt.DynlinkingGo() {
			memProfSym := ctxt.loader.LookupOrCreateSym("runtime.disableMemoryProfiling", 0)

	    Sets -cover.

	-cpuprofile cpu.out
	    Write a CPU profile to the specified file before exiting.
	    Writes test binary as -c would.

	-memprofile mem.out
	    Write an allocation profile to the file after all tests have passed.
	    Writes test binary as -c would.

	-memprofilerate n
	    Enable more precise (and expensive) memory allocation profiles by

//	    Sets -cover.
//
//	-cpuprofile cpu.out
//	    Write a CPU profile to the specified file before exiting.
//	    Writes test binary as -c would.
//
//	-memprofile mem.out
//	    Write an allocation profile to the file after all tests have passed.
//	    Writes test binary as -c would.
//
//	-memprofilerate n

	gcrash.stack = stackalloc(16384)
	gcrash.stackguard0 = gcrash.stack.lo + 1000
	gcrash.stackguard1 = gcrash.stack.lo + 1000

	// if disableMemoryProfiling is set, update MemProfileRate to 0 to turn off memprofile.
	// Note: parsedebugvars may update MemProfileRate, but when disableMemoryProfiling is
	// set to true by the linker, it means that nothing is consuming the profile, it is
	// safe to set MemProfileRate to 0.

		{"GOOS", Const, 0},
		{"GOROOT", Func, 0},
		{"Goexit", Func, 0},
		{"GoroutineProfile", Func, 0},
		{"Gosched", Func, 0},
		{"KeepAlive", Func, 7},
		{"LockOSThread", Func, 0},
		{"MemProfile", Func, 0},
		{"MemProfileRate", Var, 0},
		{"MemProfileRecord", Type, 0},
		{"MemProfileRecord.AllocBytes", Field, 0},
		{"MemProfileRecord.AllocObjects", Field, 0},
		{"MemProfileRecord.FreeBytes", Field, 0},