From 0e3195ec3db84805b27c2ef3eab86f09a97ea42b Mon Sep 17 00:00:00 2001
From: Eggert Jung <eggert.s.jung@wischhof13.de>
Date: Sat, 10 Jan 2026 17:21:14 +0100
Subject: [PATCH] test memory info

---
 kernel/main.cc                  |  4 ++++
 kernel/memory/pageframealloc.cc | 13 +++++++++++++
 kernel/thread/idlethread.cc     |  2 +-
 kernel/user/app1/appl.cc        |  6 +++---
 4 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/kernel/main.cc b/kernel/main.cc
index 396d3bf..740b5c3 100644
--- a/kernel/main.cc
+++ b/kernel/main.cc
@@ -3,6 +3,7 @@
 #include "./debug/output.h"
 #include "./types.h"  // This is actually used
 #include "arch/core_interrupt.h"
+#include "memory/pageframealloc.h"
 #include "syscall/handler.h"
 
 #include "./device/textstream.h"
@@ -22,6 +23,7 @@ OutputStream* copyout = &copystream;
 #include "./arch/ioapic.h"
 #include "./device/ps2controller.h"
 #include "./interrupt/guard.h"
+#include "./boot/multiboot/data.h"
 #include "./sync/semaphore.h"
 #include "./thread/thread.h"
 //Semaphore koutsem(1);
@@ -38,6 +40,8 @@ static KeyboardApplication kapp;
 
 // Main function
 extern "C" int main() {
+    PageFrameAllocator::init();
+
 	tout.reset();
 	tout.setPos(33, 0);
 	tout << OS_NAME << " (2.x)" << flush;
diff --git a/kernel/memory/pageframealloc.cc b/kernel/memory/pageframealloc.cc
index ac2dfe5..82c87d0 100644
--- a/kernel/memory/pageframealloc.cc
+++ b/kernel/memory/pageframealloc.cc
@@ -1,7 +1,20 @@
 #include "../memory/pageframealloc.h"
+#include "../boot/multiboot/data.h"
 #include "pageframe.h"
+#include "../debug/output.h"
+
+#include "../memory/config.h"
+
 
 void PageFrameAllocator::init(){
+    Multiboot::Memory* memory_map_start = Multiboot::getMemoryMap();
+
+    dout << "kernel start: " << ___KERNEL_START___;
+    dout << " kernel end: " << ___KERNEL_END___ << endl;
+    while(memory_map_start != 0){
+        dout << "Memory: " << hex << memory_map_start->getStartAddress() << " to " << memory_map_start->getEndAddress() << " is available: " << memory_map_start->isAvailable() << ".\n";
+        memory_map_start = memory_map_start->getNext();
+    }
 }
 
 void PageFrameAllocator::stats(){
diff --git a/kernel/thread/idlethread.cc b/kernel/thread/idlethread.cc
index 0e3b62c..a566cb7 100644
--- a/kernel/thread/idlethread.cc
+++ b/kernel/thread/idlethread.cc
@@ -21,7 +21,7 @@ void IdleThread::action() {
 			}
 			Core::idle();
 			// We woke up. Start ticking again
-            dout << "idle ";
+            //dout << "idle ";
 
 			LAPIC::Timer::setMasked(false);
 		} else {
diff --git a/kernel/user/app1/appl.cc b/kernel/user/app1/appl.cc
index 450694c..0483ca5 100644
--- a/kernel/user/app1/appl.cc
+++ b/kernel/user/app1/appl.cc
@@ -14,9 +14,9 @@ void Application::action() {  // NOLINT
 	for (unsigned i = 1;; ++i) {
 		write(1, text, sizeof(text));
 		if(i==id){
-			write(2, "kill", 4);
-			write(2, &text[4], 1);
-			write(2, " ", 1);
+			//write(2, "kill", 4);
+			//write(2, &text[4], 1);
+			//write(2, " ", 1);
 			sys_exit();
 		}
 		sleep(1000);