36 строки
840 Б
Go
36 строки
840 Б
Go
//go:build fe310 && qemu
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package runtime
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import (
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"runtime/volatile"
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"unsafe"
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)
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// Special memory-mapped device to exit tests, created by SiFive.
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var testExit = (*volatile.Register32)(unsafe.Pointer(uintptr(0x100000)))
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// ticksToNanoseconds converts CLINT ticks (at 100ns per tick) to nanoseconds.
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func ticksToNanoseconds(ticks timeUnit) int64 {
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return int64(ticks) * 100
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}
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// nanosecondsToTicks converts nanoseconds to CLINT ticks (at 100ns per tick).
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func nanosecondsToTicks(ns int64) timeUnit {
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return timeUnit(ns / 100)
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}
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func abort() {
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exit(1)
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}
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func exit(code int) {
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if code == 0 {
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// Signal a successful exit.
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testExit.Set(0x5555) // FINISHER_PASS
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} else {
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// Signal a failure. The exit code is stored in the upper 16 bits of the
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// 32 bit value.
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testExit.Set(uint32(code)<<16 | 0x3333) // FINISHER_FAIL
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}
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}
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