Free coverage data when unloading a method

Author: richard-fine

mono/metadata/profiler-private.h

@@ -113,6 +113,7 @@ mono_profiler_installed (void)
 }
 
 MonoProfilerCoverageInfo *mono_profiler_coverage_alloc (MonoMethod *method, guint32 entries);
+void mono_profiler_coverage_free (MonoMethod* method, MonoProfilerCoverageInfo* info);
 
 struct _MonoProfilerCallContext {
 	/*

mono/metadata/profiler.c

@@ -564,6 +564,20 @@ mono_profiler_coverage_alloc (MonoMethod *method, guint32 entries)
 	return info;
 }
 
+void mono_profiler_coverage_free (MonoMethod* method, MonoProfilerCoverageInfo* info)
+{
+	if (!mono_profiler_state.code_coverage)
+		return;
+
+	coverage_lock ();
+
+	g_hash_table_remove(mono_profiler_state.coverage_hash, method);
+
+	coverage_unlock ();
+
+	g_free (info);
+}
+
 /**
  * mono_profiler_enable_sampling:
  *

mono/mini/mini.c

@@ -1908,6 +1908,11 @@ mono_empty_compile (MonoCompile *cfg)
 	}
 	cfg->headers_to_free = NULL;
 
+	if (cfg->coverage_info) {
+		mono_profiler_coverage_free(cfg->method, cfg->coverage_info);
+		cfg->coverage_info = NULL;
+	}
+
 	if (cfg->mempool) {
 	//mono_mempool_stats (cfg->mempool);
 		mono_mempool_destroy (cfg->mempool);