var gsignalStack gsignalStack
	setStack := adjustSignalStack(sig, gp.m, &gsignalStack)
	if setStack {
		gp.m.gsignal.stktopsp = getcallersp()
	}

	if gp.stackguard0 == stackFork {
		signalDuringFork(sig)
	}

	c.fixsigcode(sig)
	sighandler(sig, info, ctx, gp)
	setg(gp)
	if setStack {
		restoreGsignalStack(&gsignalStack)
	}
}

	// the same signal stack. This breaks the case of a thread
	// created in C that calls sigaltstack and then calls a Go
	// function, because we will lose track of the C code's
	// sigaltstack, but it's the best we can do.
	signalstack(&gp.m.gsignal.stack)
	gp.m.newSigstack = true

	minitSignalMask()
}

// Called from dropm to undo the effect of an minit.
//
//go:nosplit
func unminit() {
	unminitSignals()

	}
	const FAIL_FAST_GENERATE_EXCEPTION_ADDRESS = 0x1
	stdcall3(_RaiseFailFastException, uintptr(unsafe.Pointer(info)), uintptr(unsafe.Pointer(r)), FAIL_FAST_GENERATE_EXCEPTION_ADDRESS)
}

// gsignalStack is unused on Windows.

	// Fields not known to debuggers.
	procid        uint64            // for debuggers, but offset not hard-coded
	gsignal       *g                // signal-handling g
	goSigStack    gsignalStack      // Go-allocated signal handling stack
	sigmask       sigset            // storage for saved signal mask
	tls           [tlsSlots]uintptr // thread-local storage (for x86 extern register)
	mstartfn      func()