From ad9e577e8b2f6431d48a6a64fd95aff432e48441 Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Thu, 10 Mar 2022 20:01:25 -0800
Subject: More Deterministic

---
 src/lib/kmem.c    | 53 -----------------------------------------------------
 src/lib/strings.c |  8 ++++----
 2 files changed, 4 insertions(+), 57 deletions(-)

(limited to 'src/lib')

diff --git a/src/lib/kmem.c b/src/lib/kmem.c
index 931d5e3..0419662 100644
--- a/src/lib/kmem.c
+++ b/src/lib/kmem.c
@@ -2,59 +2,6 @@
 #include <drivers/uart.h>
 #include <lib/kmem.h>
 
-void* kmalloc(unsigned int size)
-{
-	unsigned int sz = 1;
-	while (sz < size && sz < 0x1000)
-		sz *= 2;
-	unsigned long offset = 0x1000*(sz/2);
-	unsigned int exp = 0;
-	unsigned int tmp = sz;
-	while (tmp != 0) {
-		exp++;
-		tmp = tmp >> 1;
-	}
-	unsigned int i = 0;
-	while (i < 0x1000) {
-		if (kmem_lookup[0x1000*exp + i] == 0) {
-			kmem_lookup[0x1000*exp + i] = 1;
-			return (void*)kmem_begin + offset + i*sz;
-		}
-		i++;
-	}
-	return 0;
-}
-
-void* kcalloc(unsigned int size)
-{
-	unsigned char* ptr = kmalloc(size);
-	if (ptr == 0)
-		return 0;
-	for(unsigned int i = 0; i < size; i++)
-		ptr[i] = 0;
-	return ptr;
-}
-
-void  kfree(void* ptr)
-{
-	if (!((unsigned long)kmem_begin <= (unsigned long)ptr && (unsigned long)ptr < (unsigned long)kmem_begin + 0x200000))
-		return;
-	unsigned long size = 1;
-	while (!((unsigned long)kmem_begin + 0x1000*(size/2) <= (unsigned long)ptr && (unsigned long)ptr < (unsigned long)kmem_begin + 0x1000*size)) {
-		size *= 2;
-	}
-	void* base = (void*)((unsigned long)ptr - ((unsigned long)ptr % size));
-	void* block_base = kmem_begin + 0x1000*(size/2);
-	unsigned int lookup_offset = (base - block_base)/size;
-	unsigned int exp = 0;
-	unsigned int tmp = size;
-	while (tmp != 0) {
-		exp++;
-		tmp = tmp >> 1;
-	}
-	kmem_lookup[0x1000*exp + lookup_offset] = 0;
-}
-
 void kmemshow32(void* data, unsigned long length)
 {
 	unsigned long* ptr = data;
diff --git a/src/lib/strings.c b/src/lib/strings.c
index 53caaec..3155afa 100644
--- a/src/lib/strings.c
+++ b/src/lib/strings.c
@@ -36,7 +36,7 @@ unsigned char strcmpn(string_t a, string_t b, unsigned int n)
 
 char* zhex32_to_str(unsigned long value)
 {
-	char* data = kcalloc(9);
+	static char data[10];
 	char tmp = 0;
 	char isz = -1;
 	for (int i = 0; i < 8; i++) {
@@ -53,7 +53,7 @@ char* zhex32_to_str(unsigned long value)
 
 char* hex32_to_str(unsigned long value)
 {
-	char* data = kcalloc(9);
+	static char data[10];
 	char tmp = 0;
 	for (int i = 0; i < 8; i++) {
 		tmp = (value >> 4*(8-i-1))&0xF;
@@ -69,7 +69,7 @@ char* u32_to_str(unsigned long value)
 {
 	unsigned long t = value;
 	unsigned long c;
-	char* data = kcalloc(11);
+	static char data[12];
 	char* dptr = data + 9;
 	for (int i = 0; i <= 10; i++) {
 		c = t%10;
@@ -91,7 +91,7 @@ char* s32_to_str(unsigned long value)
 		t = -t;
 		is_neg = 1;
 	}
-	char* data = kcalloc(12);
+	static char data[13];
 	char* dptr = data + 10;
 	for (int i = 0; i <= 10; i++) {
 		c = t%10;
-- 
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