From 4af19d010f4f2a103d75ceac83f155392032400c Mon Sep 17 00:00:00 2001
From: Drew Galbraith <dgalbraith33@gmail.com>
Date: Sun, 5 Nov 2023 08:48:41 -0800
Subject: [PATCH] [Zion] Add an early debug method without allocations.

---
 zion/debug/debug.cpp | 2 ++
 zion/debug/debug.h   | 4 ++++
 zion/zion.cpp        | 4 ++--
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/zion/debug/debug.cpp b/zion/debug/debug.cpp
index 44188fa..44347e8 100644
--- a/zion/debug/debug.cpp
+++ b/zion/debug/debug.cpp
@@ -132,6 +132,8 @@ void dbg_internal(const char* fmt, va_list args) {
 
 }  // namespace
 
+void early_dbgln(const char* str) { dbgcstr(str); }
+
 void dbg(const char* fmt, ...) {
   va_list arg;
   va_start(arg, fmt);
diff --git a/zion/debug/debug.h b/zion/debug/debug.h
index b343446..5e862f4 100644
--- a/zion/debug/debug.h
+++ b/zion/debug/debug.h
@@ -4,6 +4,10 @@
 
 #include "include/ztypes.h"
 
+// Debug line without formatting for
+// before allocations are available.
+void early_dbgln(const char* str);
+
 void dbg(const char* fmt, ...);
 void dbgln(const char* str, ...);
 void panic(const char* str, ...);
diff --git a/zion/zion.cpp b/zion/zion.cpp
index fc44e51..876c221 100644
--- a/zion/zion.cpp
+++ b/zion/zion.cpp
@@ -17,11 +17,11 @@
 #include "syscall/syscall.h"
 
 extern "C" void zion() {
-  dbgln("[boot] Init GDT & IDT.");
+  early_dbgln("[boot] Init GDT & IDT.");
   InitGdt();
   InitIdt();
 
-  dbgln("[boot] Init Physical Memory Manager.");
+  early_dbgln("[boot] Init Physical Memory Manager.");
   phys_mem::InitBootstrapPageAllocation();
   KernelHeap heap(0xFFFFFFFF'40000000, 0xFFFFFFFF'80000000);
   phys_mem::InitPhysicalMemoryManager();