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Post-reorg cleanup: POSIX layer, and naming fixes

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Follow-up to the monorepo re-org. Suite 35/35 plus host tests green.

POSIX compatibility is now its own library, library/posix/ (unistd, stdio),
layered strictly over the runtime — it calls the runtime's IPC/heap, never
system calls directly. The runtime is now POSIX-free (the danos-native
application ABI). The VFS wire protocol is danos-native throughout
(Stat -> FileStatus, .stat -> .status, O_CREAT -> create); the POSIX layer
maps the POSIX spellings at the boundary. The coding standard's ABI-name
exception is scoped to one place: a file is allowed POSIX spellings only if it
lives under library/posix/ — everywhere else, danos naming with no exception.

Naming fixes, all mechanical:
- initrd -> initial-ramdisk: the source file, the module, the tool
  (make-initial-ramdisk.py), the artifact (initial-ramdisk.img, including the
  bootloader's load path), and the identifiers.
- system/kernel/device-service.zig -> devices-broker.zig: it is ring-0 kernel
  code (the trusted device table + claim capability), not a ring-3 service. The
  future user-space device *manager* (policy) will live in system/services/.
- Dropped the daemon `d` suffix: hpetd -> hpet, busd -> bus. A driver lives in
  system/drivers/, so the folder already says what it is; encoding the role in
  the name too is redundant. The coding standard drops that exception.
- system/devices/aml/interp.zig -> interpreter.zig (the type was already
  Interpreter).
This commit is contained in:
Daniel Samson
2026-07-10 13:33:06 +01:00
parent 8754d4e46a
commit ceacc6b514
27 changed files with 308 additions and 254 deletions
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boot/efi.zig
+11 -11
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@@ -15,8 +15,8 @@ const kernel_file_name = std.unicode.utf8ToUtf16LeStringLiteral("kernel");
/// the FAT driver walks the components itself, so no directory dance needed).
const init_file_name = std.unicode.utf8ToUtf16LeStringLiteral("sbin\\init");
/// Path of the initrd image on the boot volume (the VFS server + drivers).
const initrd_file_name = std.unicode.utf8ToUtf16LeStringLiteral("initrd.img");
/// Path of the initial_ramdisk image on the boot volume (the VFS server + drivers).
const initial_ramdisk_file_name = std.unicode.utf8ToUtf16LeStringLiteral("initial-ramdisk.img");
/// Physical page size, and the sentinel UEFI uses to seek to end-of-file.
const page_size = 4096;
@@ -68,9 +68,9 @@ fn boot() !noreturn {
log(") - booting without user space\r\n");
};
// Best effort: the initrd (VFS server + drivers) is optional too.
loadInitrd(bs, &boot_information) catch |err| {
log("danos: no initrd (");
// Best effort: the initial_ramdisk (VFS server + drivers) is optional too.
loadInitialRamdisk(bs, &boot_information) catch |err| {
log("danos: no initial_ramdisk (");
logBytes(@errorName(err));
log(")\r\n");
};
@@ -396,12 +396,12 @@ fn loadInit(bs: *uefi.tables.BootServices, boot_information: *BootInformation) !
log("danos: sbin/init loaded\r\n");
}
/// Ferry the initrd (the VFS server + drivers) to the kernel, same as init.
fn loadInitrd(bs: *uefi.tables.BootServices, boot_information: *BootInformation) !void {
const image = try loadFile(bs, initrd_file_name);
boot_information.initrd_base = @intFromPtr(image.ptr);
boot_information.initrd_len = image.len;
log("danos: initrd loaded\r\n");
/// Ferry the initial_ramdisk (the VFS server + drivers) to the kernel, same as init.
fn loadInitialRamdisk(bs: *uefi.tables.BootServices, boot_information: *BootInformation) !void {
const image = try loadFile(bs, initial_ramdisk_file_name);
boot_information.initial_ramdisk_base = @intFromPtr(image.ptr);
boot_information.initial_ramdisk_len = image.len;
log("danos: initial_ramdisk loaded\r\n");
}
/// Validate the ELF, copy every PT_LOAD segment to its physical address, and