1 files changed, 92 insertions, 0 deletions
diff --git a/js/src/gdb/tests/test-Interpreter.cpp b/js/src/gdb/tests/test-Interpreter.cpp
new file mode 100644
index 000000000..9e206ff6a
--- /dev/null
+++ b/js/src/gdb/tests/test-Interpreter.cpp
@@ -0,0 +1,92 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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/. */
+
+#include "gdb-tests.h"
+#include "jsapi.h"
+
+#include "vm/Stack.h"
+
+namespace js {
+
+void
+GDBTestInitInterpreterRegs(InterpreterRegs& regs,
+                           js::InterpreterFrame* fp_,
+                           JS::Value* sp,
+                           uint8_t* pc)
+{
+    regs.fp_ = fp_;
+    regs.sp = sp;
+    regs.pc = pc;
+}
+
+void
+GDBTestInitAbstractFramePtr(AbstractFramePtr& frame, void* ptr)
+{
+    MOZ_ASSERT((uintptr_t(ptr) &  AbstractFramePtr::TagMask) == 0);
+    frame.ptr_ = uintptr_t(ptr) | AbstractFramePtr::Tag_ScriptFrameIterData;
+}
+
+void
+GDBTestInitAbstractFramePtr(AbstractFramePtr& frame, InterpreterFrame* ptr)
+{
+    MOZ_ASSERT((uintptr_t(ptr) & AbstractFramePtr::TagMask) == 0);
+    frame.ptr_ = uintptr_t(ptr) | AbstractFramePtr::Tag_InterpreterFrame;
+}
+
+void
+GDBTestInitAbstractFramePtr(AbstractFramePtr& frame, jit::BaselineFrame* ptr)
+{
+    MOZ_ASSERT((uintptr_t(ptr) & AbstractFramePtr::TagMask) == 0);
+    frame.ptr_ = uintptr_t(ptr) | AbstractFramePtr::Tag_BaselineFrame;
+}
+
+void
+GDBTestInitAbstractFramePtr(AbstractFramePtr& frame, jit::RematerializedFrame* ptr)
+{
+    MOZ_ASSERT((uintptr_t(ptr) & AbstractFramePtr::TagMask) == 0);
+    frame.ptr_ = uintptr_t(ptr) | AbstractFramePtr::Tag_RematerializedFrame;
+}
+
+} // namespace js
+
+FRAGMENT(Interpreter, Regs) {
+  struct FakeFrame {
+    js::InterpreterFrame frame;
+    JS::Value slot0;
+    JS::Value slot1;
+    JS::Value slot2;
+  } fakeFrame;
+  uint8_t fakeOpcode = JSOP_IFEQ;
+
+  js::InterpreterRegs regs;
+  js::GDBTestInitInterpreterRegs(regs, &fakeFrame.frame, &fakeFrame.slot2, &fakeOpcode);
+
+  breakpoint();
+
+  (void) regs;
+}
+
+FRAGMENT(Interpreter, AbstractFramePtr) {
+
+    js::AbstractFramePtr sfidptr;
+    GDBTestInitAbstractFramePtr(sfidptr, (js::ScriptFrameIter::Data*) uintptr_t(0xdeeb0));
+
+    js::AbstractFramePtr ifptr;
+    GDBTestInitAbstractFramePtr(ifptr, (js::InterpreterFrame*) uintptr_t(0x8badf00));
+
+    js::AbstractFramePtr bfptr;
+    GDBTestInitAbstractFramePtr(bfptr, (js::jit::BaselineFrame*) uintptr_t(0xbadcafe0));
+
+    js::AbstractFramePtr rfptr;
+    GDBTestInitAbstractFramePtr(rfptr, (js::jit::RematerializedFrame*) uintptr_t(0xdabbad00));
+
+    breakpoint();
+
+    (void) sfidptr;
+    (void) ifptr;
+    (void) bfptr;
+    (void) rfptr;
+}