From c25b9e2337aad02073a199619f6f754f15cccd38 Mon Sep 17 00:00:00 2001
From: comex
Date: Mon, 19 Jan 2015 19:12:32 -0500
Subject: more reorganization - move OS X/iOS specific stuff into its own
 directory

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

(limited to 'lib/darwin/objc.h')

diff --git a/lib/darwin/objc.h b/lib/darwin/objc.h
new file mode 100644
index 0000000..9628c35
--- /dev/null
+++ b/lib/darwin/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 0x27
+#elif defined(__i386__)
+#define TRAMPOLINE_SIZE 0x19
+#elif defined(__arm__)
+#define TRAMPOLINE_SIZE 0x18
+#elif defined(__arm64__)
+#define TRAMPOLINE_SIZE 0x40
+#endif
+#ifdef __LP64__
+#define TRAMP_INFO_PAGE_ENTRY_SIZE 24
+#else
+#define TRAMP_INFO_PAGE_ENTRY_SIZE 12
+#endif
+#define TRAMPOLINES_PER_PAGE (_PAGE_SIZE / TRAMPOLINE_SIZE)
-- 
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