38 строки
750 Б
Go
38 строки
750 Б
Go
// +build tinygo.riscv32
|
|
|
|
package runtime
|
|
|
|
import "unsafe"
|
|
|
|
//go:extern _sbss
|
|
var _sbss [0]byte
|
|
|
|
//go:extern _ebss
|
|
var _ebss [0]byte
|
|
|
|
//go:extern _sdata
|
|
var _sdata [0]byte
|
|
|
|
//go:extern _sidata
|
|
var _sidata [0]byte
|
|
|
|
//go:extern _edata
|
|
var _edata [0]byte
|
|
|
|
func preinit() {
|
|
// Initialize .bss: zero-initialized global variables.
|
|
ptr := unsafe.Pointer(&_sbss)
|
|
for ptr != unsafe.Pointer(&_ebss) {
|
|
*(*uint32)(ptr) = 0
|
|
ptr = unsafe.Pointer(uintptr(ptr) + 4)
|
|
}
|
|
|
|
// Initialize .data: global variables initialized from flash.
|
|
src := unsafe.Pointer(&_sidata)
|
|
dst := unsafe.Pointer(&_sdata)
|
|
for dst != unsafe.Pointer(&_edata) {
|
|
*(*uint32)(dst) = *(*uint32)(src)
|
|
dst = unsafe.Pointer(uintptr(dst) + 4)
|
|
src = unsafe.Pointer(uintptr(src) + 4)
|
|
}
|
|
}
|