> 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
 00:10:23 up  7:50,  1 user,  load average: 0.49, 0.33, 0.27

abstract-machine/klib/src/stdio.c

@@ -6,11 +6,17 @@
 #if !defined(__ISA_NATIVE__) || defined(__NATIVE_USE_KLIB__)
 
 int printf(const char *fmt, ...) {
-  panic("Not implemented");
+  va_list ap;
+  va_start(ap, fmt);
+  char buf[1024] = { 0 };
+  int ret = vsnprintf(buf, sizeof(buf), fmt, ap);
+  putstr(buf);
+  va_end(ap);
+  return ret;
 }
 
 int vsprintf(char *out, const char *fmt, va_list ap) {
-  panic("Not implemented");
+  return vsnprintf(out, SIZE_MAX, fmt, ap);
 }
 
 int sprintf(char *out, const char *fmt, ...) {
@@ -29,8 +35,14 @@ int snprintf(char *out, size_t n, const char *fmt, ...) {
   return ret;
 }
 
+static int rvsnprintf(char* out, size_t n, const char* fmt, va_list ap);
+
 int vsnprintf(char *out, size_t n, const char *fmt, va_list ap) {
-  panic("Not implemented");
+  return rvsnprintf(out, n, fmt, ap);
+}
+
+static int rvsnprintf(char* out, size_t n, const char* fmt, va_list ap) {
+  return 0;
 }
 
 #endif

abstract-machine/klib/src/string.c

@@ -57,7 +57,7 @@ void *memset(void *s, int c, size_t n) {
 }
 
 void *memmove(void *dst, const void *src, size_t n) {
-  panic("Not implemented");
+  panic("Not immpliment");
 }
 
 void *memcpy(void *out, const void *in, size_t n) {