From 4337bc11c8de4f14126fb2017e856a458ea12509 Mon Sep 17 00:00:00 2001
From: 0x35c <unai64@orange.fr>
Date: Mon, 21 Oct 2024 13:36:42 +0200
Subject: [PATCH] wip: debug memory pages persistency

---
 src/kernel.c              | 24 +++++++++++++++++++-----
 src/kpanic.c              |  2 +-
 src/memory/memory.c       |  2 +-
 src/memory/page.c         |  2 +-
 src/memory/virt/vmalloc.c |  4 ++--
 5 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/src/kernel.c b/src/kernel.c
index 9fecc03..29d6766 100644
--- a/src/kernel.c
+++ b/src/kernel.c
@@ -1,4 +1,5 @@
 #include "alloc.h"
+#include "debug.h"
 #include "drivers.h"
 #include "gdt.h"
 #include "idt.h"
@@ -35,10 +36,23 @@ void kernel_main(void)
 	        "I see no way to confuse an array of 256 seg:off pairs with a "
 	        "complex 8*unknown quantity -byte descriptor table. -- Troy "
 	        "Martin 03:50, 22 March 2009 (UTC)\n");
-	/* kprintf("%p\n", vmalloc(10)); */
-	int i = 0;
-	while (vmalloc(10))
-		if (i++ > 11000)
-			kprintf("%d\n", i++);
+	/* char *str = vmalloc(10); */
+	/* strcpy(str, "hello"); */
+	/* int i = 0; */
+	/* while (vmalloc(10)) */
+	/* 	if (i++ > 11000) */
+	/* 		kprintf("str: %s at %d\n", str, i); */
+	void *tab[1024];
+	for (int i = 0; i < 1024; i++) {
+		tab[i] = alloc_pages(1);
+		/* PRINT_INT(i); */
+		/* PRINT_PTR(tab[i]); */
+		if (tab[i])
+			memset(tab[i], i, 4096);
+	}
+	/* PRINT_UINT(((uint8_t *)tab[0])[0]); */
+	for (int i = 0; i < 10; i++)
+		PRINT_PTR(tab[i]);
+	/* PRINT_UINT(((uint8_t *)tab[i])[0]); */
 	shell_init();
 }
diff --git a/src/kpanic.c b/src/kpanic.c
index b5c8024..276f296 100644
--- a/src/kpanic.c
+++ b/src/kpanic.c
@@ -22,7 +22,7 @@ void kpanic(const char *format, ...)
 	kprintf("fault at address: %p\n", faulting_address);
 	/* for (int i = 16; i < 32; i++) */
 	/* 	kprintf("%p\n", page_table1[i]); */
-	show_valloc_mem();
+	/* show_valloc_mem(); */
 	/* kprintf("\n\n"); */
 	/* print_stack(); */
 	/* kprintf("\n\n"); */
diff --git a/src/memory/memory.c b/src/memory/memory.c
index 9a4fe0f..c035774 100644
--- a/src/memory/memory.c
+++ b/src/memory/memory.c
@@ -16,5 +16,5 @@ void init_memory(void)
 		page_directory[i] = 0x02;
 	for (int16_t i = 0; i < 1024; i++)
 		page_table1[i] = (i << 12) | 0x03;
-	page_directory[0] = ((uint32_t)page_table1 - HEAP_END) | 0x03;
+	page_directory[342] = ((uint32_t)page_table1 - HEAP_END) | 0x03;
 }
diff --git a/src/memory/page.c b/src/memory/page.c
index 4a78ee3..c2138ad 100644
--- a/src/memory/page.c
+++ b/src/memory/page.c
@@ -46,7 +46,7 @@ void *alloc_pages(size_t size)
 		/* assert(page_table1[i] >> 12 == i); */
 		page_table1[i] = ((uint32_t)frame & PAGE_MASK) | INIT_FLAGS;
 	}
-	PRINT_PTR(page_table1[index]);
+	/* PRINT_PTR(page_table1[index]); */
 	return (void *)(index * PAGE_SIZE);
 }
 
diff --git a/src/memory/virt/vmalloc.c b/src/memory/virt/vmalloc.c
index c78ced7..dce5352 100644
--- a/src/memory/virt/vmalloc.c
+++ b/src/memory/virt/vmalloc.c
@@ -17,8 +17,8 @@ static Block *find_block(Zone *head, uint32_t size)
 		     block_it = block_it->next_free) {
 			assert(block_it);
 			if (block_it->in_use) {
-				PRINT_PTR(block_it);
-				PRINT_PTR(block_it->zone);
+				/* PRINT_PTR(block_it); */
+				/* PRINT_PTR(block_it->zone); */
 			}
 			assert(!block_it->in_use);
 			if (size <= block_it->size) {