Merge pull request #5 from mmtk/mmtk-bug

Include some basic info on MMTk on crashes

Author: chrisseaton

vm_dump.c

@@ -37,6 +37,10 @@
 #include "vm_core.h"
 #include "ractor_core.h"
 
+#ifdef USE_THIRD_PARTY_HEAP
+#include "mmtk.h"
+#endif
+
 #define MAX_POSBUF 128
 
 #define VM_CFP_CNT(ec, cfp) \
@@ -1189,6 +1193,16 @@ rb_vm_bugreport(const void *ctx)
         }
 #endif
     }
+
+#ifdef USE_THIRD_PARTY_HEAP
+    fprintf(stderr, "* MMTk:\n\n");
+    fprintf(stderr, "               mmtk_free_bytes: %zu\n", mmtk_free_bytes());
+    fprintf(stderr, "              mmtk_total_bytes: %zu\n", mmtk_total_bytes());
+    fprintf(stderr, "               mmtk_used_bytes: %zu\n", mmtk_used_bytes());
+    fprintf(stderr, "    mmtk_starting_heap_address: 0x%zx\n", (size_t) mmtk_starting_heap_address());
+    fprintf(stderr, "        mmtk_last_heap_address: 0x%zx\n", (size_t) mmtk_last_heap_address());
+    fprintf(stderr, "\n");
+#endif
 }
 
 void