1 files changed, 53 insertions, 0 deletions
diff --git a/js/src/jit/JitCommon.h b/js/src/jit/JitCommon.h
new file mode 100644
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--- /dev/null
+++ b/js/src/jit/JitCommon.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * 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/. */
+
+#ifndef jit_JitCommon_h
+#define jit_JitCommon_h
+
+// Various macros used by all JITs.
+
+#include "jit/Simulator.h"
+
+#ifdef JS_SIMULATOR
+// Call into cross-jitted code by following the ABI of the simulated
+// architecture.
+#  define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7)          \
+    (js::jit::Simulator::Current()->call(                                     \
+        JS_FUNC_TO_DATA_PTR(uint8_t*, entry), 8, intptr_t(p0), intptr_t(p1),  \
+        intptr_t(p2), intptr_t(p3), intptr_t(p4), intptr_t(p5), intptr_t(p6), \
+        intptr_t(p7)))
+
+#  define CALL_GENERATED_0(entry)                                              \
+    (js::jit::Simulator::Current()->call(JS_FUNC_TO_DATA_PTR(uint8_t*, entry), \
+                                         0))
+
+#  define CALL_GENERATED_1(entry, p0)                                          \
+    (js::jit::Simulator::Current()->call(JS_FUNC_TO_DATA_PTR(uint8_t*, entry), \
+                                         1, intptr_t(p0)))
+
+#  define CALL_GENERATED_2(entry, p0, p1)                                      \
+    (js::jit::Simulator::Current()->call(JS_FUNC_TO_DATA_PTR(uint8_t*, entry), \
+                                         2, intptr_t(p0), intptr_t(p1)))
+
+#  define CALL_GENERATED_3(entry, p0, p1, p2)                                  \
+    (js::jit::Simulator::Current()->call(JS_FUNC_TO_DATA_PTR(uint8_t*, entry), \
+                                         3, intptr_t(p0), intptr_t(p1),        \
+                                         intptr_t(p2)))
+
+#else
+
+// Call into jitted code by following the ABI of the native architecture.
+#  define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \
+    entry(p0, p1, p2, p3, p4, p5, p6, p7)
+
+#  define CALL_GENERATED_0(entry) entry()
+#  define CALL_GENERATED_1(entry, p0) entry(p0)
+#  define CALL_GENERATED_2(entry, p0, p1) entry(p0, p1)
+#  define CALL_GENERATED_3(entry, p0, p1, p2) entry(p0, p1, p2)
+
+#endif
+
+#endif  // jit_JitCommon_h