DBG: "setfreezestack 1/0" command to freeze the stack

Author: mrexodia

src/dbg/debugger.cpp

@@ -155,6 +155,11 @@ void dbgsetisdetachedbyuser(bool b)
     isDetachedByUser = b;
 }
 
+void dbgsetfreezestack(bool freeze)
+{
+    bFreezeStack = freeze;
+}
+
 void dbgclearignoredexceptions()
 {
     ignoredExceptionRange.clear();
@@ -1128,6 +1133,7 @@ DWORD WINAPI threadDebugLoop(void* lpParameter)
     bIsAttached = false;
     bSkipExceptions = false;
     bBreakOnNextDll = false;
+    bFreezeStack = false;
     INIT_STRUCT* init = (INIT_STRUCT*)lpParameter;
     bFileIsDll = IsFileDLLW(StringUtils::Utf8ToUtf16(init->exe).c_str(), 0);
     pDebuggedEntry = GetPE32DataW(StringUtils::Utf8ToUtf16(init->exe).c_str(), 0, UE_OEP);
@@ -1421,6 +1427,7 @@ DWORD WINAPI threadAttachLoop(void* lpParameter)
     lock(WAITID_STOP);
     bIsAttached = true;
     bSkipExceptions = false;
+    bFreezeStack = false;
     DWORD pid = (DWORD)lpParameter;
     static PROCESS_INFORMATION pi_attached;
     fdProcessInfo = &pi_attached;

src/dbg/debugger.h

@@ -74,6 +74,7 @@ void dbgsetskipexceptions(bool skip);
 void dbgsetstepping(bool stepping);
 void dbgsetispausedbyuser(bool b);
 void dbgsetisdetachedbyuser(bool b);
+void dbgsetfreezestack(bool freeze);
 void dbgclearignoredexceptions();
 void dbgaddignoredexception(ExceptionRange range);
 bool dbgisignoredexception(unsigned int exception);

src/dbg/debugger_commands.cpp

@@ -2091,3 +2091,16 @@ CMDRESULT cbDebugSkip(int argc, char* argv[])
     DebugUpdateGui(cip, false); //update GUI
     return STATUS_CONTINUE;
 }
+
+CMDRESULT cbDebugSetfreezestack(int argc, char* argv[])
+{
+    if (argc < 2)
+    {
+        dputs("Not enough arguments!");
+        return STATUS_ERROR;
+    }
+    bool freeze = *argv[1] != '0';
+    dbgsetfreezestack(freeze);
+    dprintf("Stack is now %s\n", freeze ? "freezed" : "unfreezed");
+    return STATUS_CONTINUE;
+}

src/dbg/debugger_commands.h

@@ -64,6 +64,7 @@ CMDRESULT cbDebugDownloadSymbol(int argc, char* argv[]);
 CMDRESULT cbDebugGetPageRights(int argc, char* argv[]);
 CMDRESULT cbDebugSetPageRights(int argc, char* argv[]);
 CMDRESULT cbDebugSkip(int argc, char* argv[]);
+CMDRESULT cbDebugSetfreezestack(int argc, char* argv[]);
 
 //misc
 void showcommandlineerror(cmdline_error_t* cmdline_error);

src/dbg/x64_dbg.cpp

@@ -212,6 +212,7 @@ static void registercommands()
     dbgcmdnew("virtualmod", cbInstrVirtualmod, true); //virtual module
     dbgcmdnew("findallmem\1findmemall", cbInstrFindMemAll, true); //memory map pattern find
     dbgcmdnew("setmaxfindresult\1findsetmaxresult", cbInstrSetMaxFindResult, false); //set the maximum number of occurences found
+    dbgcmdnew("setfreezestack", cbDebugSetfreezestack, false); //freeze the stack from auto updates
 }
 
 static bool cbCommandProvider(char* cmd, int maxlen)