Redesign setting .rodata map values (still broken state)

[grantseltzer]

This is a POC of being able to set variables in .rodata, an internal bpf map to set global variables.

In this example it works (can be proven with sudo bpftool map dump name main.rodata) but it fails intermittently if the data types of the variables are different (i.e. not all longs or all ints). Still have to get to the bottom of that.

[*] sudo bpftool map dump name main.rodata
[{
        "value": {
            ".rodata": [{
                    "foo": 6
                },{
                    "bar": 443
                },{
                    "baz": 333
                }
            ]
        }
    }
]

Signed-off-by: grantseltzer grantseltzer@gmail.com