No real functional change except how the smaller ARCH_DEFAULT_PAGE_SIZE
is now computed and set in defines.h instead of rules.mk for arch/arm to
be consistent with the other arch that has a large/small build (riscv).
To work properly with some hypervisors on various architectures (ARM,
ARM64, x86), add global routines to allow access to MMIO registers via
architecturally defined accessors.
Add accessors for ARM, ARM64, and x86-32/64. Have the other arches
default to just using whatever the compiler emits.
Will need to generally move things off the legacy REG*() accessors
since they're really not safe going forward with what compilers emit.
This lets some arches return a 64bit counter.
As a result of fixing this, removed -Wno-format switch in the test app
which caused the need to fix a lot of printfs.
Previously, was relying on a regular definition with the arch_ops.h code
overriding it with a static inline. This has been annoying for some
years since it forces the declarations to be in order. Change it to
simple declare an inline wrapper around an arch_ routine that does
whatever it needs to do.
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
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
This allows for individual modules to extend the main linker script,
primarily to add their own sections to interate over.
Remove the main shared_* linker scripts.
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.
If a make variable was modified in a way that would cause the linker
script to need to be regenerated on arches that use generated linker
scripts, make sure we get a fresh copy.
Reuse the same generate-then-replace logic that goes into config.h
files.
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.
