From 0e0380305eb8ab045aa26882e48e0b61498977c8 Mon Sep 17 00:00:00 2001
From: comex
Date: Sat, 17 Jan 2015 13:40:22 -0500
Subject: imp forwarding works

---
 lib/objc.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 lib/objc.h

(limited to 'lib/objc.h')

diff --git a/lib/objc.h b/lib/objc.h
new file mode 100644
index 0000000..24427e1
--- /dev/null
+++ b/lib/objc.h
@@ -0,0 +1,23 @@
+#pragma once
+/* PAGE_SIZE is not actually a constant on iOS */
+#if defined(__arm64__)
+#define _PAGE_SHIFT 14
+#else
+#define _PAGE_SHIFT 12
+#endif
+#define _PAGE_SIZE (1 << _PAGE_SHIFT)
+#if defined(__x86_64__)
+#define TRAMPOLINE_SIZE 0x23
+#elif defined(__i386__)
+#define TRAMPOLINE_SIZE 0x1c
+#elif defined(__arm__)
+#define TRAMPOLINE_SIZE 0x18
+#elif defined(__arm64__)
+#define TRAMPOLINE_SIZE 0x40
+#endif
+#ifdef __LP64__
+#define REMAP_PAGE_ENTRY_SIZE 24
+#else
+#define REMAP_PAGE_ENTRY_SIZE 12
+#endif
+#define TRAMPOLINES_PER_PAGE (_PAGE_SIZE / TRAMPOLINE_SIZE)
-- 
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