> 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
 18:06:44 up 13:19,  1 user,  load average: 0.21, 0.09, 0.11

abstract-machine/klib/src/stdio.c

@@ -42,6 +42,19 @@ int vsnprintf(char *out, size_t n, const char *fmt, va_list ap) {
 }
 
 static int rvsnprintf(char* out, size_t n, const char* fmt, va_list ap) {
+  while (n) {
+    switch (*fmt)
+    {
+    case '%':
+      break;
+    default:
+      *out = *fmt;
+      out ++;
+      fmt ++;
+      n --;
+      break;
+    }
+  }
   return 0;
 }
 

nemu/Kconfig

@@ -12,6 +12,9 @@ menu "NEMU Configuration Options"
     default n
     help
       Say Y here if you want to enable match rules Log
+  config CONFIG_TEST_EXPR
+    bool "Enable test expr program"
+    default n
 endmenu
 
 choice

nemu/src/monitor/sdb/sdb.c

@@ -265,6 +265,8 @@ void init_sdb() {
   init_wp_pool();
 }
 
+
+#ifdef CONFIG_CONFIG_TEXT_EXPR
 void _test_expr() {
   uint32_t expect, res;
   char buf[65536] = {0};
@@ -296,4 +298,6 @@ int test_expr(int argc, char *argv[]) {
     _test_expr();
   }
   return 0;
-}
+}
+
+#endif

nemu/src/monitor/sdb/watchpoint.c

@@ -44,8 +44,6 @@ void init_wp_pool() {
   free_ = wp_pool;
 }
 
-/* TODO: Implement the functionality of watchpoint */
-
 bool wp_check_hit(void) {
   bool res = false;
   for (WP* tmp = head; tmp != NULL; tmp = tmp->next) {

nemu/src/nemu-main.c

@@ -21,7 +21,7 @@ void engine_start();
 int is_exit_status_bad();
 
 int main(int argc, char *argv[]) {
-#ifdef _TEST_EXPR_
+#ifdef CONFIG_CONFIG_TEST_EXPR
   init_monitor(0, NULL);
   int test_expr(int argc, char *argv[]);
   return test_expr(argc, argv);