christos68k

package main

import (
	"fmt"
	"sort"
	"time"
	_ "unsafe"

	"golang.org/x/sys/unix"
)

christos68k

/*
 * Given a test pattern (number in base10), for each digit D starting from the right,
 * spawn D threads to burn cpu in separate dynamically allocated executable pages,
 * sleep for user-configurable delay, cancel all threads and revert executable pages
 * to PROT_NONE.
 *
 * Example for pattern 432:
 *   spawn 2 threads, sleep, cancel/mprotect, sleep, spawn 3 threads, sleep, cancel/mprotect..
 *
 * The addresses used for the executable mappings are of the form:

christos68k

$ ./map 987 2
Reserved 0x2000000000 bytes at 0x10000000000
PID: 1237837
Code len: 40
Page size: 4096
=== ARGS:
Test pattern: 987
Delay: 2
Page gap: 1