Almost nothing changes here except moving braces to the same line as the
function declaration. Everything else is largely whitespace changes and
a few dangling files with tab indents.
See scripts/codestyle
This picks up the major work of allowing multiple heap implementations
and enable dlmalloc as an alternate heap to the simple existing one
(now called 'miniheap').
Also added a novm page allocator for memory management on systems too small
or missing an mmu to have a vm. Not much more than a simple bitmap allocator
that the heap pulls from. Allows for other heaps and/or users of physical
memory to coexist and span multiple banks of memory.
Punched out a version of the microblaze on a ZYBO dev board, which required
a few tweaks an additions to run on real hardware.
Refactored the qemu and zybo microblaze target.
The qemu target has 128KB of ram at 0 and the rest at 0x90000000.
Split the binary so that the vector table lives at 0 and everything else in
the high address.
