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build: phase 2 pilot — pci-bus builds as a package

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build-support gains the domains-based userBinary: the default import set
(the library/kernel concern modules, driver/service clients, mmio,
acpi-ids, xkeyboard-config) is assembled from the domain packages, and
the root shim + user link script come from the kernel package directory.
system/drivers/pci-bus is the first binary package: a ~15-line
declarative build.zig naming only its extras (device-manager-protocol,
pci-class); the root build consumes the artifact for the boot image and
the driver also builds standalone from its own directory. Boot-image
file list unchanged.
This commit is contained in:
Daniel Samson
2026-07-26 22:55:47 +01:00
parent 721288c516
commit 6f4fdc2789
5 changed files with 116 additions and 5 deletions
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build.zig
+4 -5
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@@ -467,11 +467,10 @@ pub fn build(b: *std.Build) void {
const shared_memory_server_exe = addUserBinary(b, kernel_target, &default_imports, "shared-memory-server", "test/system/services/shared-memory-server/shared-memory-server.zig");
const shared_memory_client_exe = addUserBinary(b, kernel_target, &default_imports, "shared-memory-client", "test/system/services/shared-memory-client/shared-memory-client.zig");
const fat_test_exe = addUserBinary(b, kernel_target, &default_imports, "fat-test", "test/system/services/fat-test/fat-test.zig");
const pci_bus_exe = addUserBinary(b, kernel_target, &default_imports, "pci-bus", "system/drivers/pci-bus/pci-bus.zig");
programModule(pci_bus_exe).addImport("device-manager-protocol", device_manager_protocol_module);
// The PCI bus driver decodes each function's class triple to human names in its
// boot log (class/subclass/prog-IF), so pull in the shared pci-class reference.
programModule(pci_bus_exe).addImport("pci-class", pci_class_module);
// The first binary package (docs/build-packages-plan.md, phase 2): pci-bus
// builds itself against the domain packages; the root build just takes the
// artifact for the boot image.
const pci_bus_exe = b.dependency("pci-bus", .{}).artifact("pci-bus");
// A test fixture, not a real driver: hellos to the device manager, then faults —
// what the driver-restart scenario drives the crash-loop cap with.
const crash_test_exe = addUserBinary(b, kernel_target, &default_imports, "crash-test", "test/system/services/crash-test/crash-test.zig");