printf spinlock + remove DEPRECATED stuff + begin separating x86 stuff

src/io/term/term.c

@@ -30,19 +30,10 @@ extern struct flanterm_context* ft_ctx;
 extern struct init_status init;
 
 struct spinlock_t term_lock = {0};
+struct spinlock_t printf_lock = {0};
 
 extern int panic_count;
 
-/*
- * _putchar - Writes a character to terminal (DEPRECATED)
- * @character: character to write
- */
-void _putchar(char character)
-{
-	// TODO: Spinlock here (terminal access)
-	flanterm_write(ft_ctx, &character, 1);
-}
-
 /*
  * internal_putc - Internal putchar function
  * @c: char to print
@@ -83,14 +74,26 @@ void internal_putc(int c, void *_)
  *
  * Return:
  * <ret> - number of characters sent to the callback
+ * %-1   - error
  */
 int printf(const char* fmt, ...)
 {
-    va_list args;
-    va_start(args, fmt);
-    int ret = npf_vpprintf(internal_putc, NULL, fmt, args);
-    va_end(args);
-    return ret;
+    if (panic_count == 0) {
+        spinlock_acquire(&printf_lock);
+        va_list args;
+        va_start(args, fmt);
+        int ret = npf_vpprintf(internal_putc, NULL, fmt, args);
+        va_end(args);
+        spinlock_release(&printf_lock);
+        return ret;
+    } else {
+        va_list args;
+        va_start(args, fmt);
+        int ret = npf_vpprintf(internal_putc, NULL, fmt, args);
+        va_end(args);
+        return ret;
+    }
+    return -1;
 }
 
 /*
@@ -103,30 +106,14 @@ void kputs(const char* str)
 {
 	size_t i=0;
 	while (str[i] != 0) {
-		_putchar(str[i]);
+		internal_putc(str[i], NULL);
 		i++;
 	}
-	_putchar('\r');
 }
 
 extern struct flanterm_context* ft_ctx;
 extern struct boot_context boot_ctx;
 
-/*
- * flanterm_free_wrapper - free() wrapper for Flanterm (DEPRECATED)
- * @ptr:  pointer to free
- * @size: amount of bytes to free
- *
- * This function exists solely because the Flanterm initialization
- * function only accepts a free() function with a size parameter,
- * and the default one doesn't have it.
- */
-void flanterm_free_wrapper(void* ptr, size_t size)
-{
-	(void)size;
-	kfree(ptr);
-}
-
 /*
  * term_init - Video output/terminal initialization
  *