27 lines
606 B
Go
27 lines
606 B
Go
//+build !windows
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package monkey
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import (
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"syscall"
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)
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// this function is super unsafe
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// aww yeah
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// It copies a slice to a raw memory location, disabling all memory protection before doing so.
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func copyToLocation(location uintptr, data []byte) {
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f := rawMemoryAccess(location, len(data))
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page := rawMemoryAccess(pageStart(location), syscall.Getpagesize())
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err := syscall.Mprotect(page, syscall.PROT_READ|syscall.PROT_WRITE|syscall.PROT_EXEC)
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if err != nil {
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panic(err)
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}
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copy(f, data[:])
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err = syscall.Mprotect(page, syscall.PROT_READ|syscall.PROT_EXEC)
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if err != nil {
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panic(err)
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}
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}
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