DBG: automatic comments will have a '\1' character as prefix.

Author: mrexodia

x64_dbg_dbg/_exports.cpp

@@ -163,7 +163,7 @@ extern "C" DLL_EXPORT bool _dbg_addrinfoget(duint addr, SEGMENTREG segment, ADDR
                     len--;
                 if(len)
                     len++;
-                sprintf(addrinfo->comment, "%s:%u", filename + len, line.LineNumber);
+                sprintf_s(addrinfo->comment, "\1%s:%u", filename + len, line.LineNumber);
                 retval = true;
             }
             else if(!bOnlyCipAutoComments || addr == GetContextDataEx(hActiveThread, UE_CIP)) //no line number
@@ -273,8 +273,10 @@ extern "C" DLL_EXPORT bool _dbg_addrinfoget(duint addr, SEGMENTREG segment, ADDR
                         retval = true;
                     }
                 }
-                comment.resize(MAX_COMMENT_SIZE - 1);
-                strcpy_s(addrinfo->comment, comment.c_str());
+                comment.resize(MAX_COMMENT_SIZE - 2);
+                String fullComment = "\1";
+                fullComment += comment;
+                strcpy_s(addrinfo->comment, fullComment.c_str());
             }
         }
     }

x64_dbg_dbg/addrinfo.cpp

@@ -380,7 +380,7 @@ bool apienumexports(uint base, EXPORTENUMCALLBACK cbEnum)
 ///comment functions
 bool commentset(uint addr, const char* text, bool manual)
 {
-    if(!DbgIsDebugging() or !memisvalidreadptr(fdProcessInfo->hProcess, addr) or !text or strlen(text) >= MAX_COMMENT_SIZE - 1)
+    if(!DbgIsDebugging() or !memisvalidreadptr(fdProcessInfo->hProcess, addr) or !text or text[0] == '\1' or strlen(text) >= MAX_COMMENT_SIZE - 1)
         return false;
     if(!*text) //NOTE: delete when there is no text
     {