Switch to nanoprintf + good spinlock (rflags) = no more FLANTERM ISSUES???

src/io/term/term.c

@@ -19,10 +19,20 @@ because this shitty implementation will be replaced one day by Flanterm
 #include "flanterm_backends/fb.h"
 #include "mem/heap/kheap.h"
 #include "limine.h"
+#include <stdarg.h>
+#include "sched/spinlock.h"
+#include "io/serial/serial.h"
+
+#define NANOPRINTF_IMPLEMENTATION
+#include "nanoprintf.h"
 
 extern struct flanterm_context* ft_ctx;
 extern struct init_status init;
 
+struct spinlock_t term_lock = {0};
+
+extern int panic_count;
+
 /*
  * _putchar - Writes a character to terminal
  * @character: character to write
@@ -33,6 +43,39 @@ void _putchar(char character)
 	flanterm_write(ft_ctx, &character, 1);
 }
 
+void internal_putc(int c, void *_)
+{
+    (void)_;
+    char ch = (char)c;
+
+    if (init.terminal) {
+        if (panic_count == 0) {
+            spinlock_acquire(&term_lock);
+            flanterm_write(ft_ctx, &ch, 1);
+            spinlock_release(&term_lock);
+        } else {
+            flanterm_write(ft_ctx, &ch, 1);
+        }
+    }
+
+    
+    if (init.serial) {
+        if (ch == '\n') {
+            skputc('\r');
+        }
+        skputc(ch);
+    }
+}
+
+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;
+}
+
 /*
  * kputs - Kernel puts
  * @str: String to write