Add Verilated::scopesDump(), for debugging.

include/verilated.cpp

@@ -915,6 +915,10 @@ void Verilated::commandArgs(int argc, const char** argv) {
     VerilatedImp::commandArgs(argc,argv);
 }
 
+void Verilated::scopesDump() {
+    VerilatedImp::scopesDump();
+}
+
 //===========================================================================
 // VerilatedModule:: Methods
 

include/verilated.h

@@ -186,10 +186,16 @@ public:
     /// Enable/disable assertions
     static void assertOn(bool flag) { s_assertOn=flag; }
     static bool assertOn() { return s_assertOn; }
+
     /// Record command line arguments, for retrieval by $test$plusargs/$value$plusargs
     static void commandArgs(int argc, const char** argv);
     static void commandArgs(int argc, char** argv) { commandArgs(argc,(const char**)argv); }
 
+    /// For debugging, print text list of all scope names with
+    /// dpiImport/Export context.  This function may change in future
+    /// releases - contact the authors before production use.
+    static void scopesDump();
+
     // METHODS - INTERNAL USE ONLY
     // Internal: Create a new module name by concatenating two strings
     static const char* catName(const char* n1, const char* n2); // Returns new'ed data

include/verilatedimp.h

@@ -137,7 +137,15 @@ public: // But only for verilated*.cpp
 	ScopeNameMap::iterator it=s_s.m_nameMap.find(scopep->name());
 	if (it != s_s.m_nameMap.end()) s_s.m_nameMap.erase(it);
     }
-    
+    static void scopesDump() {
+	VL_PRINTF("scopesDump:\n");
+	for (ScopeNameMap::iterator it=s_s.m_nameMap.begin();
+	     it!=s_s.m_nameMap.end(); ++it) {
+	    const VerilatedScope* scopep = it->second;
+	    VL_PRINTF("    %s\n", scopep->name());
+	}
+	VL_PRINTF("\n");
+    }
 };
 
 #endif  // Guard

test_regress/t/t_dpi_context_c.cpp

@@ -32,6 +32,10 @@
 # error "Unknown simulator for DPI test"
 #endif
 
+#ifdef VERILATOR
+# include "verilated.h"
+#endif
+
 #ifdef NEED_EXTERNS
 extern "C" {
 
@@ -50,6 +54,13 @@ int dpic_line() {
 	return 0;
     }
 
+#ifdef VERILATOR
+    static int didDump = 0;
+    if (didDump++ == 0) {
+	Verilated::scopesDump();
+    }
+#endif
+
     const char* scopenamep = svGetNameFromScope(scope);
     if (!scopenamep) {
 	printf("%%Warning: svGetNameFromScope failed\n");