1 files changed, 103 insertions, 0 deletions
diff --git a/js/src/devtools/rootAnalysis/computeGCFunctions.js b/js/src/devtools/rootAnalysis/computeGCFunctions.js
new file mode 100644
index 0000000000..90705051c9
--- /dev/null
+++ b/js/src/devtools/rootAnalysis/computeGCFunctions.js
@@ -0,0 +1,103 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
+"use strict";
+
+loadRelativeToScript('utility.js');
+loadRelativeToScript('annotations.js');
+loadRelativeToScript('loadCallgraph.js');
+
+function usage() {
+  throw "Usage: computeGCFunctions.js <rawcalls1.txt> <rawcalls2.txt>... --outputs <out:callgraph.txt> <out:gcFunctions.txt> <out:gcFunctions.lst> <out:gcEdges.txt> <out:limitedFunctions.lst>";
+}
+
+if (typeof scriptArgs[0] != 'string')
+  usage();
+
+var start = "Time: " + new Date;
+
+try {
+  var options = parse_options([
+    {
+      name: 'inputs',
+      dest: 'rawcalls_filenames',
+      nargs: '+'
+    },
+    {
+      name: '--outputs',
+      type: 'bool'
+    },
+    {
+      name: 'callgraph',
+      type: 'string',
+      default: 'callgraph.txt'
+    },
+    {
+      name: 'gcFunctions',
+      type: 'string',
+      default: 'gcFunctions.txt'
+    },
+    {
+      name: 'gcFunctionsList',
+      type: 'string',
+      default: 'gcFunctions.lst'
+    },
+    {
+      name: 'limitedFunctions',
+      type: 'string',
+      default: 'limitedFunctions.lst'
+    },
+  ]);
+} catch {
+  printErr("Usage: computeGCFunctions.js <rawcalls1.txt> <rawcalls2.txt>... --outputs <out:callgraph.txt> <out:gcFunctions.txt> <out:gcFunctions.lst> <out:gcEdges.txt> <out:limitedFunctions.lst>");
+  quit(1);
+};
+
+var {
+  gcFunctions,
+  functions,
+  calleesOf,
+  limitedFunctions
+} = loadCallgraph(options.rawcalls_filenames);
+
+printErr("Writing " + options.gcFunctions);
+redirect(options.gcFunctions);
+
+for (var name in gcFunctions) {
+    for (let readable of (functions.readableName[name] || [name])) {
+        print("");
+        const fullname = (name == readable) ? name : name + "$" + readable;
+        print("GC Function: " + fullname);
+        let current = name;
+        do {
+            current = gcFunctions[current];
+            if (current === 'internal')
+                ; // Hit the end
+            else if (current in functions.readableName)
+                print("    " + functions.readableName[current][0]);
+            else
+                print("    " + current);
+        } while (current in gcFunctions);
+    }
+}
+
+printErr("Writing " + options.gcFunctionsList);
+redirect(options.gcFunctionsList);
+for (var name in gcFunctions) {
+    if (name in functions.readableName) {
+        for (var readable of functions.readableName[name])
+            print(name + "$" + readable);
+    } else {
+        print(name);
+    }
+}
+
+printErr("Writing " + options.limitedFunctions);
+redirect(options.limitedFunctions);
+print(JSON.stringify(limitedFunctions, null, 4));
+
+printErr("Writing " + options.callgraph);
+redirect(options.callgraph);
+saveCallgraph(functions, calleesOf);