i386-stivale2: fix stack

kernel/build.zig

@@ -43,6 +43,7 @@ const x86_64 = Target {
 const intel386 = Target {
     .parent = &x86,
     .cpu_arch = std.Target.Cpu.Arch.i386,
+    .cpu_model = std.build.Target.CpuModel {.explicit = &std.builtin.Target.x86.cpu._i386},
     .archdir = "i386",
     .name = "i386-generic",
 };
@@ -237,7 +238,7 @@ pub fn build(b: *Builder) !void {
 
     exe.setTarget(getTarget(ktarget));
     exe.setBuildMode(mode);
-    // exe.code_model = std.builtin.CodeModel.kernel;
+    exe.code_model = std.builtin.CodeModel.kernel;
     exe.setLinkerScriptPath(getLinkerScript(ktarget));
     // exe.setOutputDir("bin");
     // exe.strip = true;

kernel/src/arch/i386/entry-stivale2.c

@@ -11,7 +11,7 @@ void stivale2_main(struct stivale2_struct *info);
 __attribute__((section(".stivale2hdr"), used))
 struct stivale2_header header2 = {
     .entry_point = 0,
-    .stack       = 1024*1024,
+    .stack       = 1024*1024 + 15*1024,
     .flags       = 0,
     .tags        = 0
 };