b713001313
For example, for running tests with -target=wasm or -target=cortex-m-qemu. It looks at the output to determine whether tests were successful in the absence of a status code.
68 строки
1,1 КиБ
Go
68 строки
1,1 КиБ
Go
// +build cortexm,qemu
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package runtime
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// This file implements the Stellaris LM3S6965 Cortex-M3 chip as implemented by
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// QEMU.
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import (
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"device/arm"
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"runtime/volatile"
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"unsafe"
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)
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type timeUnit int64
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var timestamp timeUnit
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func postinit() {}
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//export Reset_Handler
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func main() {
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preinit()
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run()
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// Signal successful exit.
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arm.SemihostingCall(arm.SemihostingReportException, arm.SemihostingApplicationExit)
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abort()
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}
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const asyncScheduler = false
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func ticksToNanoseconds(ticks timeUnit) int64 {
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return int64(ticks)
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}
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func nanosecondsToTicks(ns int64) timeUnit {
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return timeUnit(ns)
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}
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func sleepTicks(d timeUnit) {
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// TODO: actually sleep here for the given time.
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timestamp += d
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}
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func ticks() timeUnit {
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return timestamp
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}
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// UART0 output register.
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var stdoutWrite = (*volatile.Register8)(unsafe.Pointer(uintptr(0x4000c000)))
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func putchar(c byte) {
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stdoutWrite.Set(uint8(c))
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}
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func waitForEvents() {
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arm.Asm("wfe")
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}
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func abort() {
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// Signal an abnormal exit.
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arm.SemihostingCall(arm.SemihostingReportException, arm.SemihostingRunTimeErrorUnknown)
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// Lock up forever (should be unreachable).
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for {
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arm.Asm("wfi")
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}
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}
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