blob: a9388ce911ffbf12c2f91917721ea19f297f15ee (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
//go:build avr
// +build avr
package runtime
import "runtime/interrupt"
const GOARCH = "arm" // avr pretends to be arm
// The bitness of the CPU (e.g. 8, 32, 64).
const TargetBits = 8
const deferExtraRegs = 1 // the frame pointer (Y register) also needs to be stored
// Align on a word boundary.
func align(ptr uintptr) uintptr {
// No alignment necessary on the AVR.
return ptr
}
func getCurrentStackPointer() uintptr {
return uintptr(stacksave())
}
// The safest thing to do here would just be to disable interrupts for
// procPin/procUnpin. Note that a global variable is safe in this case, as any
// access to procPinnedMask will happen with interrupts disabled.
var procPinnedMask interrupt.State
//go:linkname procPin sync/atomic.runtime_procPin
func procPin() {
procPinnedMask = interrupt.Disable()
}
//go:linkname procUnpin sync/atomic.runtime_procUnpin
func procUnpin() {
interrupt.Restore(procPinnedMask)
}
|
