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* 2614Kartik K. Agaram2016-01-291-1/+1
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* 2581 - make space for the refcount in address:sharedKartik K. Agaram2016-01-201-6/+11
| | | | | | | | | | | We don't yet actually maintain the refcount. That's next. Hardest part of this was debugging the assume-console scenarios in layer 85. That took some detailed manual diffing of traces (because the output of diff was no good). New tracing added in this commit add 8% to .traces LoC. Commented out trace() calls (used during debugging) make that 45%.
* 2576 - distinguish allocated addresses from othersKartik K. Agaram2016-01-191-7/+9
| | | | | | | | | | | | | | | | This is the one major refinement on the C programming model I'm planning to introduce in mu. Instead of Rust's menagerie of pointer types and static checking, I want to introduce just one new type, and use it to perform ref-counting at runtime. So far all we're doing is updating new's interface. The actual ref-counting implementation is next. One implication: I might sometimes need duplicate implementations for a recipe with allocated vs vanilla addresses of the same type. So far it seems I can get away with just always passing in allocated addresses; the situations when you want to pass an unallocated address to a recipe should be few and far between.
* 2571Kartik K. Agaram2016-01-191-0/+83
Reorganize layers in preparation for a better way to manage heap allocations without ever risking use-after-free errors.