From 8d48bbd9746228b63bafa5f92b621998d7d8f3d3 Mon Sep 17 00:00:00 2001
From: Jon Santmyer <jon@jonsantmyer.com>
Date: Sun, 4 Oct 2026 10:49:41 -0400
Subject: move init fully to proc. remove init pages prealloc. prepare for
 scheduling

---
 sys/syscall.c     |  8 ++++----
 sys/syscall.h     |  1 +
 sys/syscall_pcb.c | 26 ++++++++++++++++++++++++++
 3 files changed, 31 insertions(+), 4 deletions(-)
 create mode 100644 sys/syscall_pcb.c

(limited to 'sys')

diff --git a/sys/syscall.c b/sys/syscall.c
index 7207708..54d5468 100644
--- a/sys/syscall.c
+++ b/sys/syscall.c
@@ -38,7 +38,7 @@ static const syscall_handle_t s_syscall_handles[128] = {
     [JOVE_OBJ_PAGEDIR] = _syscall_handle_pagedir,
     [JOVE_OBJ_PROCESSOR] = _syscall_handle_generic,
     [JOVE_OBJ_SHMEMORY] = _syscall_handle_generic,
-    [JOVE_OBJ_PCB] = _syscall_handle_generic,
+    [JOVE_OBJ_PCB] = _syscall_handle_pcb,
     [JOVE_OBJ_INT_HANDLE] = _syscall_handle_generic,
     [JOVE_OBJ_INITRD_FILE] = _syscall_handle_initrd_file,
     [JOVE_OBJ_FRAMEBUFFER] = _syscall_handle_generic,
@@ -86,7 +86,7 @@ syscall_handler(uintmax_t message_path_raw, uint16_t message_pathlen)
 
     ctx.pcb = process_current();
     pcb_t *pcb = obj_deref(ctx.pcb);
-    ctx.objdir = lockstack_push(&ctx.lockstack, obj_take(pcb_rootdir(pcb)));
+    ctx.objdir = lockstack_push(&ctx.lockstack, obj_take(pcb_getrootdir(pcb)));
 
     ctx.message = link_try_traverse_objdir(
             ctx.objdir, &ctx.lockstack, message_pathlen, message_path);
@@ -113,7 +113,7 @@ syscall_handler(uintmax_t message_path_raw, uint16_t message_pathlen)
     }
 
     uintptr_t message_vptr = message_unmap(ctx.message.obj,
-            (jove_owned_obj_t*)pcb_pagedir(pcb));
+            (jove_owned_obj_t*)pcb_getpagedir(pcb));
 
     size_t messagelen = 0x1000;
     void *messagedata = (void*)message_getdata(ctx.message.obj);
@@ -154,7 +154,7 @@ syscall_handler(uintmax_t message_path_raw, uint16_t message_pathlen)
     }
 
 remap_return:
-    message_remap(ctx.message.obj, (jove_owned_obj_t*)pcb_pagedir(pcb), message_vptr);
+    message_remap(ctx.message.obj, (jove_owned_obj_t*)pcb_getpagedir(pcb), message_vptr);
 
 release_return:
     lockstack_popall(&ctx.lockstack);
diff --git a/sys/syscall.h b/sys/syscall.h
index 461b104..082fe29 100644
--- a/sys/syscall.h
+++ b/sys/syscall.h
@@ -57,6 +57,7 @@ int _syscall_handle_vtt(syscall_context_t *ctx);
 int _syscall_handle_objdir(syscall_context_t *ctx);
 int _syscall_handle_untyped(syscall_context_t *ctx);
 int _syscall_handle_pagedir(syscall_context_t *ctx);
+int _syscall_handle_pcb(syscall_context_t *ctx);
 int _syscall_handle_initrd_file(syscall_context_t *ctx);
 int _syscall_handle_message(syscall_context_t *ctx);
 
diff --git a/sys/syscall_pcb.c b/sys/syscall_pcb.c
new file mode 100644
index 0000000..b77be95
--- /dev/null
+++ b/sys/syscall_pcb.c
@@ -0,0 +1,26 @@
+#include "api/error.h"
+#include "lib/printf.h"
+#include "syscall.h"
+
+int
+s_syscall_pcb_yield(jove_owned_obj_t *pcb_obj,
+        size_t bytes_left,
+        void *payload_data)
+{
+    kprintf("%s: Stub!\n", __func__);
+    return 0;
+}
+
+int
+_syscall_handle_pcb(syscall_context_t *ctx)
+{
+    switch(ctx->header->callid) {
+        case SYSCALL_PCB_YIELD:
+            if(ctx->target.permissions & SYSCALL_PERM_PCB_YIELD)
+                return s_syscall_pcb_yield(ctx->target.obj, ctx->bytes_left, ctx->payload);
+            return -EPERM;
+
+        default:
+            return -EBADCALL;
+    }
+}
-- 
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