Changeset fb97252f for src

Timestamp:

Apr 17, 2018, 2:10:11 PM (6 years ago)

Author:

Aaron Moss <a3moss@…>

Branches:

new-env, with_gc

Children:

5af7306

Parents:

24de7b1

Message:

Added GC_TRAP debugging compilation flag

File:

• src/Common/GC.cc (modified) (3 diffs)

src/Common/GC.cc

@@ -51 +51 @@
 }
 
+// build with flag GC_TRAP to compile in a breakpoint on register and sweep of a dynamically 
+// chosen object. Process to use:
+//     break GC::register_object
+//     run
+//     set variable GC_TRAP_OBJ = <target>
+//     disable <first breakpoint>
+#ifdef GC_TRAP
+#include <csignal>
+
+/// Set to object to check in debugger
+void* GC_TRAP_OBJ = nullptr;
+#endif
+
 void GC::register_object(GC_Object* obj) {
+        #ifdef GC_TRAP
+                if ( obj == GC_TRAP_OBJ ) std::raise(SIGTRAP);
+        #endif
         gens[g].push_back(obj);
         obj->mark = !this->mark;  // initialize as un-marked
@@ -81 +97 @@
         for ( GC_Object*& obj : young ) {
                 if ( obj->mark != mark ) {
+                        #ifdef GC_TRAP
+                                if ( obj == GC_TRAP_OBJ ) std::raise(SIGTRAP);
+                        #endif
                         delete obj;
                         obj = nullptr;
@@ -103 +122 @@
         for ( GC_Object*& obj : old ) {
                 if ( obj->mark != mark ) {
+                        #ifdef GC_TRAP
+                                if ( obj == GC_TRAP_OBJ ) std::raise(SIGTRAP);
+                        #endif
                         delete obj;
                         obj = nullptr;