Trying to fix kheap...

kernel/libc/Makefile

@@ -1,4 +1,4 @@
-OBJS = stdio.o string.o
+OBJS = stdio.o string.o assert.o
 
 CC = i686-elf-gcc # cross-compiler
 CFLAGS = -m32 -fno-stack-protector -ffreestanding -Wall -Wextra -Werror -g -c

kernel/libc/assert.c

@@ -0,0 +1,31 @@
+#include "assert.h"
+
+// We panic when we find a critical error, this function is called by assert macro
+extern void panic(const char *message, const char *file, uint32_t line) {
+    asm volatile("cli"); // Disable interrupts
+
+    kprint((uint8_t*)"PANIC(");
+    kprint((uint8_t*)message);
+    kprint((uint8_t*)") at ");
+    kprint((uint8_t*)file);
+    kprint((uint8_t*)":");
+    kprint_dec(line);
+    kprint((uint8_t*)"\n");
+    // Now hang on for ever
+    for(;;);
+}
+
+// Check for assertion failed, this function call by assert macro
+extern void panic_assert(const char *file, uint32_t line, const char *desc) {
+    asm volatile("cli"); // Disable interrupts
+
+    kprint((uint8_t*)"ASSERTION-FAILED(");
+    kprint((uint8_t*)desc);
+    kprint((uint8_t*)") at ");
+    kprint((uint8_t*)file);
+    kprint((uint8_t*)":");
+    kprint_dec(line);
+    kprint((uint8_t*)"\n");
+    // Now hang on forever
+    for(;;);
+}

kernel/libc/assert.h

@@ -0,0 +1,21 @@
+/**************************************
+ *          iceOS Kernel              *
+ * Developed by Marco 'icebit' Cetica * 
+ *            (c) 2019                *
+ *       Released under GPLv3         *
+ * https://github.com/ice-bit/iceOS   *
+ ***************************************/
+#ifndef ASSERT_H
+#define ASSERT_H
+
+#include <stdint.h>
+#include "../drivers/tty.h"
+// These functions are used for error checking
+
+#define PANIC(msg) panic(msg, __FILE__, __LINE__);
+#define ASSERT(b) ((b) ? (void)0 : panic_assert(__FILE__, __LINE__, #b))
+
+extern void panic(const char *message, const char *file, uint32_t line);
+extern void panic_assert(const char *file, uint32_t line, const char *desc);
+
+#endif