rework entry point

src/kern/entry.zig

@@ -1,16 +0,0 @@
-const std = @import("std");
-
-const r = @import("root");
-
-const pl = r.pl;
-const ke = r.ke;
-const ki = ke.private;
-
-pub const std_options = r.std_options;
-pub const panic = r.panic;
-
-export fn kmain(info: *r.BootInfo) callconv(.c) void {
-    ke.ncpus = 1;
-
-    ki.init(info);
-}

src/kern/init.zig

@@ -10,6 +10,7 @@ var thread0: ke.Thread = undefined;
 var stack: [r.kib(16)]u8 align(16) = undefined;
 
 pub fn init(boot_info: *r.BootInfo) linksection(r.init) void {
+    ke.ncpus = 1;
     ki.impl.early_init();
     ki.tunable.init(boot_info);
     std.log.info("Welcome to the machine", .{});
@@ -27,6 +28,4 @@ pub fn init(boot_info: *r.BootInfo) linksection(r.init) void {
     ki.sched.percpu.local().current_thread = &thread0;
 
     std.log.info("Zag for {s} ({s}), cmdline is \"{?s}\"", .{ pl.name, arch.name, boot_info.cmdline });
-
-    ex.private.init(boot_info);
 }

src/kern/root.zig

@@ -24,6 +24,7 @@ pub const Tunable = p.tunable.Tunable;
 
 // === Exported Interfaces ===
 pub const panic = p.panic.panic;
+pub const init = p.init;
 
 pub const ipl = struct {
     pub const raise = p.ipl.raise;