<html dir=""><head><style id="axi-htmleditor-style" type="text/css">p { margin: 0px; }</style></head><body style="font-size: 10pt; font-family: Arial; background-image: none; background-repeat: repeat; background-attachment: fixed;">Thank you for the reply. In the case of my code, it does not matter to use stmt or self. I even did your suggestion but right now it does not know the self. :( <br><br>On Wed, 06/21/2017 10:44 AM, Brian Cain <bcain@codeaurora.org> wrote:<br><blockquote style="border-left: 2px solid rgb(00, 00, 204); padding-left: 4px; margin-left: 16px;"><div style="null; null;"><meta http="http" equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Generator" content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">I think you want “stmt.addr” and “stmt.data” instead of “self.addr”, “self.data”.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">You can check what attributes an object has with “dir(self)” and “dir(stmt)”. The error indicates you’ve referenced an attribute of “self” that doesn’t exist.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">-Brian<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p><div><div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> llvm-dev [mailto:llvm-dev-bounces@lists.llvm.org] <b>On Behalf Of </b>Samaneh Berenjian via llvm-dev<br><b>Sent:</b> Wednesday, June 21, 2017 8:58 AM<br><b>To:</b> llvm-dev@lists.llvm.org<br><b>Subject:</b> [llvm-dev] question about llvmlite<o:p></o:p></span></p></div></div><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Hi all,<o:p></o:p></span></p><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">I am using llvmlite for pyvex and I want the output of my code (which is written based on llvmlite) to be like pyvex. In pyvex, (<a href="https://github.com/angr/pyvex" target="_blank">https://github.com/angr/pyvex</a>). Considering pyvex, I tried to implement the following statements in pyvex to llvmlite:<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">for stmt in irsb.statements:<o:p></o:p></span></p></div></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> if isinstance(stmt, pyvex.IRStmt.Store):<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> <span style="color:#D73A49">print</span></span><span style="font-size:9.0pt;font-family:Consolas;color:#24292E;background:white"> </span><span class="pl-pds"><span style="font-size:9.0pt;font-family:Consolas;color:#032F62;background:white">"</span></span><span class="pl-s"><span style="font-size:9.0pt;font-family:Consolas;color:#032F62;background:white">ST</span></span><span class="pl-c1"><span style="font-size:9.0pt;font-family:Consolas;color:#005CC5;background:white">%s</span></span><span class="pl-s"><span style="font-size:9.0pt;font-family:Consolas;color:#032F62;background:white">(</span></span><span class="pl-c1"><span style="font-size:9.0pt;font-family:Consolas;color:#005CC5;background:white">%s</span></span><span class="pl-s"><span style="font-size:9.0pt;font-family:Consolas;color:#032F62;background:white">) = </span></span><span class="pl-c1"><span style="font-size:9.0pt;font-family:Consolas;color:#005CC5;background:white">%s</span></span><span class="pl-pds"><span style="font-size:9.0pt;font-family:Consolas;color:#032F62;background:white">"</span></span><span style="font-size:9.0pt;font-family:Consolas;color:#24292E;background:white"> </span><span class="pl-k"><span style="font-size:9.0pt;font-family:Consolas;color:#D73A49;background:white">%</span></span><span style="font-size:9.0pt;font-family:Consolas;color:#24292E;background:white"> (</span><span class="pl-c1"><span style="font-size:9.0pt;font-family:Consolas;color:#005CC5;background:white">self</span></span><span style="font-size:9.0pt;font-family:Consolas;color:#24292E;background:white">.endness[</span><span class="pl-k"><span style="font-size:9.0pt;font-family:Consolas;color:#D73A49;background:white">-</span></span><span class="pl-c1"><span style="font-size:9.0pt;font-family:Consolas;color:#005CC5;background:white">2</span></span><span style="font-size:9.0pt;font-family:Consolas;color:#24292E;background:white">:].lower(), </span><span class="pl-c1"><span style="font-size:9.0pt;font-family:Consolas;color:#005CC5;background:white">self</span></span><span style="font-size:9.0pt;font-family:Consolas;color:#24292E;background:white">.addr, </span><span class="pl-c1"><span style="font-size:9.0pt;font-family:Consolas;color:#005CC5;background:white">self</span></span><span style="font-size:9.0pt;font-family:Consolas;color:#24292E;background:white">.data) (which gets the data in a register and store it in another register)</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">I translate it in llvmlite as follows:</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">from ctypes import CFUNCTYPE, c_int</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">import archinfo</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">import llvmlite.ir as ll</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">import llvmlite.binding as llvm</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">import pyvex</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">CODE = b"\x55\x48\x8b\x05\xb8\x13\x00\x00"</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">mehran = -100</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">llvm.initialize()</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">llvm.initialize_native_target()</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">llvm.initialize_native_asmprinter()</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">module = ll.Module()</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">func_ty = ll.FunctionType(ll.VoidType(), [])</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">func = ll.Function(module, func_ty, name='read_instructions')</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">a = func.args</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">bb_entry = func.append_basic_block('entry')</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">irbuilder = ll.IRBuilder(bb_entry)</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">int_type = ll.IntType(64);</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">irsb = pyvex.block.IRSB(CODE, 0x400400, archinfo.ArchAMD64())</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white">for stmt in irsb.statements:</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> #if isinstance(pyvex.IRStmt.Store):</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> with irbuilder.if_then(stmt, pyvex.IRStmt.Store):</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> t = irbuilder.load_reg(ll.IntType(64), stmt.data)</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> t1 = irbuilder.load_reg(ll.IntType(64), stmt.addr)</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> tcall = irbuilder.call(func, [t])</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> t1call = irbuilder.call(func, [t1])</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> result = irbuilder.store_reg(ll.Constant(ll.IntType(64), t), ll.IntType(64), t1)</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> irbuilder.ret( result )</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> print( module )</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#24292E;background:white"> target = llvm.Target.from_default_triple()</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> </span><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">target_machine = target.create_target_machine()</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> backing_mod = llvm.parse_assembly("")</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> engine = llvm.create_mcjit_compiler(backing_mod, target_machine)</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> mod = llvm.parse_assembly( str( module ) )</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> mod.verify()</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> engine.add_module(mod)</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> engine.finalize_object()</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> func_ptr = engine.get_function_address("read_instructions")</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> c_fn_fib = CFUNCTYPE(c_int64, c_int64)(func_ptr)</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> <o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Having the above code, when running it, I am stopped with error:<o:p></o:p></span></p></div><div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">AttributeError: 'IMark' object has no attribute 'data'<o:p></o:p></span></p></div></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Can anyone help me in this way?<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Thank you<o:p></o:p></span></p></div><pre><o:p> </o:p></pre><pre>-- <o:p></o:p></pre><pre>This email was Anti Virus checked by Security Gateway.<o:p></o:p></pre></div><pre>--
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