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-rw-r--r--src/lib/kmem.c53
-rw-r--r--src/lib/strings.c8
2 files changed, 4 insertions, 57 deletions
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;