Tweak the novm allocator to let us more easily add a variable sized
arena at boot.
Also added code to trap secondary cpus and reenable the use of WFI
instruction.
Very little needed to port except to conditionalize some assembly in the
context switch and exception code. Mostly needed to move build system
stuff around and add a new project.
TL;DR most uses of lib/console.h -> lk/console_cmd.h
Move the part that lets a piece of code somewhere in the system to
define a console command from the actual lib/console api to start an
instance of the console. Move in almost every place the user of the
console command definition to the new header, lk/console_cmd.h which is
always in the include path.
Also remove most uses of testing for WITH_LIB_CONSOLE since you can
almost always just safely define it and then let the linker remove it.
Replace the body of the MIT license with a reference to the LICENSE file
and a URL with the MIT license. Replaces 20 something lines with 3.
No functional change.
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
Currently targets qemu's sifive_e machine, which is a split flash/ram
machine, much like the Sifive HiFive1. Untested as of yet on a real
HiFive1.
Basic support including interrupts and architectural timers in place.
make_buf() is a static function with two callers who pass in one of
two constants. The parameters allowed for any uint count to be
supplied and the arithmetic during memory allocation was unchecked
This change updates make_buf() to reflect its usage, which is
safe, while eliminating any future uses from accidentally becoming
unsafe.
Generically add support for more than one user address space,
attach to a thread, and context switch as thread swaps happen.
Add support for ARM and ARM64, and stub out support for x86 platforms.
Ran everything through scripts/codestyle.space, which uses astyle
to generally follow K&R style.
Biggest non whitespace change is pulling brackets down on function
declarations, which I'm pretty ambivalent about, but astyle insists
on taking a stance
Hopefully to nothing...
- remove current/pinned cpu tracking in thread struct
- macroize access to current/pinned cpu tracking
- empty-inline/remove vestigial mp_* bits in UP builds
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.
