ref: e8682d0129850f44cc89e5c5e3b512f7f4c8a83d
dir: /sys/src/boot/bitsy/map/
defn acidmap()
{
local dfoffset;
dfoffset = map()[1][3];
map({"text", _start, etext, 0x20});
map({"data", etext+1, edata, dfoffset});
print("Set map for plan 9 kernel image\n");
print("btext ", _start, " etext ", etext, "\n");
}