116 lines
3.6 KiB
Java
116 lines
3.6 KiB
Java
/*
|
|
|
|
Java bindings for the Unicorn Emulator Engine
|
|
|
|
Copyright(c) 2015 Chris Eagle
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
version 2 as published by the Free Software Foundation.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
*/
|
|
|
|
/* Unicorn Emulator Engine */
|
|
/* By Nguyen Anh Quynh, 2015 */
|
|
|
|
/* Sample code to demonstrate how to emulate Sparc code */
|
|
|
|
import unicorn.*;
|
|
|
|
public class Sample_sparc {
|
|
|
|
// code to be emulated
|
|
public static final byte[] SPARC_CODE = {-122,0,64,2};
|
|
//public static final byte[] SPARC_CODE = {-69,112,0,0}; //illegal code
|
|
|
|
// memory address where emulation starts
|
|
public static final int ADDRESS = 0x10000;
|
|
|
|
public static final long toInt(byte val[]) {
|
|
long res = 0;
|
|
for (int i = 0; i < val.length; i++) {
|
|
long v = val[i] & 0xff;
|
|
res = res + (v << (i * 8));
|
|
}
|
|
return res;
|
|
}
|
|
|
|
public static final byte[] toBytes(long val) {
|
|
byte[] res = new byte[8];
|
|
for (int i = 0; i < 8; i++) {
|
|
res[i] = (byte)(val & 0xff);
|
|
val >>>= 8;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
// callback for tracing basic blocks
|
|
private static class MyBlockHook implements BlockHook {
|
|
public void hook(Unicorn u, long address, int size, Object user_data) {
|
|
System.out.print(String.format(">>> Tracing basic block at 0x%x, block size = 0x%x\n", address, size));
|
|
}
|
|
}
|
|
|
|
// callback for tracing instruction
|
|
private static class MyCodeHook implements CodeHook {
|
|
public void hook(Unicorn u, long address, int size, Object user_data) {
|
|
System.out.print(String.format(">>> Tracing instruction at 0x%x, instruction size = 0x%x\n", address, size));
|
|
}
|
|
}
|
|
|
|
static void test_sparc()
|
|
{
|
|
byte[] g1 = toBytes(0x1230); // G1 register
|
|
byte[] g2 = toBytes(0x6789); // G2 register
|
|
byte[] g3 = toBytes(0x5555); // G3 register
|
|
|
|
System.out.print("Emulate SPARC code\n");
|
|
|
|
// Initialize emulator in Sparc mode
|
|
Unicorn u = new Unicorn(Unicorn.UC_ARCH_SPARC, Unicorn.UC_MODE_BIG_ENDIAN);
|
|
|
|
// map 2MB memory for this emulation
|
|
u.mem_map(ADDRESS, 2 * 1024 * 1024, Unicorn.UC_PROT_ALL);
|
|
|
|
// write machine code to be emulated to memory
|
|
u.mem_write(ADDRESS, SPARC_CODE);
|
|
|
|
// initialize machine registers
|
|
u.reg_write(Unicorn.UC_SPARC_REG_G1, g1);
|
|
u.reg_write(Unicorn.UC_SPARC_REG_G2, g2);
|
|
u.reg_write(Unicorn.UC_SPARC_REG_G3, g3);
|
|
|
|
// tracing all basic blocks with customized callback
|
|
u.hook_add(new MyBlockHook(), 1, 0, null);
|
|
|
|
// tracing one instruction at ADDRESS with customized callback
|
|
u.hook_add(new MyCodeHook(), ADDRESS, ADDRESS, null);
|
|
|
|
// emulate machine code in infinite time (last param = 0), or when
|
|
// finishing all the code.
|
|
u.emu_start(ADDRESS, ADDRESS + SPARC_CODE.length, 0, 0);
|
|
|
|
// now print out some registers
|
|
System.out.print(">>> Emulation done. Below is the CPU context\n");
|
|
|
|
g3 = u.reg_read(Unicorn.UC_SPARC_REG_G3, 4);
|
|
System.out.print(String.format(">>> G3 = 0x%x\n", toInt(g3)));
|
|
|
|
u.close();
|
|
}
|
|
|
|
public static void main(String args[])
|
|
{
|
|
test_sparc();
|
|
}
|
|
}
|