I added util::format as a replacement for other printf implementations
last year, but it sat there only being used by the kernel all this time.
Now I've templated it so that it can be used by the bootloader, and
removed printf from panic.serial as well.
I'm a tabs guy. I like tabs, it's an elegant way to represent
indentation instead of brute-forcing it. But I have to admit that the
world seems to be going towards spaces, and tooling tends not to play
nice with tabs. So here we go, changing the whole repo to spaces since
I'm getting tired of all the inconsistent formatting.
Create a new usermode program, srv.init, and have it read the initial
module_page args sent to it by the bootloader. Doesn't yet do anything
useful but sets up the way for loading the rest of the programs from
srv.init.
Other (mostly) related changes:
- bootloader: The allocator now has a function for allocating init
modules out of a modules_page slab. Also changed how the allocator is
initialized and passes the allocation register and modules_page list
to efi_main().
- bootloader: Expose the simple wstrlen() to the rest of the program
- bootloader: Move check_cpu_supported() to hardware.cpp
- bootloader: Moved program_desc to loader.h and made the loader
functions take it as an argument instead of paths.
- kernel: Rename the system_map_mmio syscall to system_map_phys, and
stop having it default those VMAs to having the vm_flags::mmio flag.
Added a new flag mask, vm_flags::driver_mask, so that drivers can be
allowed to ask for the MMIO flag.
- kernel: Rename load_simple_process() to load_init_server() and got rid
of all the stack setup routines in memory_bootstrap.cpp and task.s
- Fixed formatting in config/debug.toml, undefined __linux and other
linux-specific defines, and got rid of _LIBCPP_HAS_THREAD_API_EXTERNAL
because that's just not true.
Separate the video mode setting out from the console code into video.*,
and remove the framebuffer from the kernel args, moving it to the new
init args format.
The bootloader relied on the kernel to know which parts of memory to not
allocate over. For the future shift of having the init process load
other processes instead of the kernel, the bootloader needs a mechanism
to just hand the kernel a list of allocations. This is now done through
the new bootloader allocator, which all allocation goes through. Pool
memory will not be tracked, and so can be overwritten - this means the
args structure and its other structures like programs need to be handled
right away, or copied by the kernel.
- Add bootloader allocator
- Implement a new linked-list based set of pages that act as allocation
registers
- Allow for operator new in the bootloader, which goes through the
global allocator for pool memory
- Split memory map and frame accouting code in the bootloader into
separate memory_map.* files
- Remove many includes that could be replaced by forward declaration in
the bootloader
- Add a new global template type, `counted`, which replaces the
bootloader's `buffer` type, and updated kernel args structure to use it.
- Move bootloader's pointer_manipulation.h to the global include dir
- Make offset_iterator try to return references instead of pointers to
make it more consistent with static array iteration
- Implement a stub atexit() in the bootloader to satisfy clang
The kernel::args namespace is really the protocol for initializing the
kernel from the bootloader. Also, the header struct in that namespace
isn't actually a header, but a collection of parameters. This change
renames the namespace to kernel::init and the struct to args.
After exiting UEFI, the bootloader had no way of displaying status to
the user. Now it will display a series of small boxes as a progress bar
along the bottom of the screen if a framebuffer exists. Errors or
warnings during a step will cause that step's box to turn red or orange,
and display bars above it to signal the error code.
This caused the simplification of the error handling system (which was
mostly just calling status_line::fail) and added different types of
status objects.
Create a new framebuffer driver. Also hackily passing frame buffer size
in the list of init handles to all processes and mapping the framebuffer
into all processes. Changed bootloader passing frame buffer as a module
to its own struct.
