> compile NEMU

221220000 张三
Linux zzy 5.15.146.1-microsoft-standard-WSL2 #1 SMP Thu Jan 11 04:09:03 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
 11:57:41 up 2 days,  2:11,  1 user,  load average: 0.55, 0.59, 0.46

abstract-machine/klib/src/printf.c

@@ -59,6 +59,7 @@ static inline int print_fmt(char **out, int n, const char** fmt, void* _ap) {
             break;
     }
     (*fmt) ++;
+    *(va_list*)_ap = ap;
     return ret;
 }