From 40c8f0540cb62033b4f140e38707ece962eb232d Mon Sep 17 00:00:00 2001
From: Sascha Schirra <sashs@scoding.de>
Date: Sun, 27 Mar 2016 21:15:45 +0200
Subject: [PATCH] sample for arm64 added

---
 bindings/ruby/sample_arm64.rb | 69 +++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 bindings/ruby/sample_arm64.rb

diff --git a/bindings/ruby/sample_arm64.rb b/bindings/ruby/sample_arm64.rb
new file mode 100644
index 00000000..45b0c9c6
--- /dev/null
+++ b/bindings/ruby/sample_arm64.rb
@@ -0,0 +1,69 @@
+#!/usr/bin/env ruby
+# Sample code for ARM64 of Unicorn. Nguyen Anh Quynh <aquynh@gmail.com>
+# Ruby sample ported by Sascha Schirra <sashs82@gmail.com>
+require 'unicorn'
+require 'unicorn/arm64_const'
+
+include Unicorn
+
+# code to be emulated
+ARM64_CODE = "\xab\x01\x0f\x8b" #add x11, x13, x15
+
+# memory address where emulation starts
+ADDRESS    = 0x10000
+
+
+# callback for tracing basic blocks
+$hook_block = Proc.new do |uc, address, size, user_data|
+    puts(">>> Tracing basic block at 0x%x, block size = 0x%x" % [address, size])
+end
+
+
+# callback for tracing instructions
+$hook_code = Proc.new do |uc, address, size, user_data|
+    puts(">>> Tracing instruction at 0x%x, instruction size = %u" % [address, size])
+end
+
+
+# Test ARM64
+def test_arm64()
+    puts("Emulate ARM64 code")
+    begin
+        # Initialize emulator in ARM mode
+        mu = Uc.new UC_ARCH_ARM64, UC_MODE_ARM
+
+        # map 2MB memory for this emulation
+        mu.mem_map(ADDRESS, 2 * 1024 * 1024)
+
+        # write machine code to be emulated to memory
+        mu.mem_write(ADDRESS, ARM64_CODE)
+
+        # initialize machine registers
+        mu.reg_write(UC_ARM64_REG_X11, 0x1234)
+        mu.reg_write(UC_ARM64_REG_X13, 0x6789)
+        mu.reg_write(UC_ARM64_REG_X15, 0x3333)
+
+        # tracing all basic blocks with customized callback
+        mu.hook_add(UC_HOOK_BLOCK, $hook_block)
+
+        # tracing all instructions with customized callback
+        mu.hook_add(UC_HOOK_CODE, $hook_code)
+
+        # emulate machine code in infinite time
+        mu.emu_start(ADDRESS, ADDRESS + ARM64_CODE.bytesize)
+
+        # now print out some registers
+        puts(">>> Emulation done. Below is the CPU context")
+
+        x11 = mu.reg_read(UC_ARM64_REG_X11)
+        x13 = mu.reg_read(UC_ARM64_REG_X13)
+        x15 = mu.reg_read(UC_ARM64_REG_X15)
+        puts(">>> X11 = 0x%x" % x11)
+
+    rescue UcError => e
+        puts("ERROR: %s" % e)
+    end
+end
+
+
+test_arm64()