temporarily removed libstdc++ test, and disable stack prot to pass compilation

kernel/Makefile

@@ -15,7 +15,7 @@ head:
 	nasm -f elf$(BITS) -DTARGET_BITS=$(BITS) image_head.asm -o image_head.o
 
 kernel:
-	g++ -ffreestanding -fpie -fno-exceptions -c kernel.cc -o kernel.o -m$(BITS) -std=c++17
+	g++ -ffreestanding -fpie -fno-exceptions -fno-stack-protector -c kernel.cc -o kernel.o -m$(BITS) -std=c++17
 
 clean:
 	rm -f *.o *.img

kernel/kernel.cc

@@ -33,7 +33,7 @@ void main() {
     //     print_char('0' + test_buf[i], default_color);
     // }
     // std::string s = "cxxhello world";
-    std::basic_string<char, std::char_traits<char>, kallocator<char>> s = "cxx hello world";
-    print(s.c_str());
+    // std::basic_string<char, std::char_traits<char>, kallocator<char>> s = "cxx hello world";
+    // print(s.c_str());
 }