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-rw-r--r--example/asm_x86.py47
1 files changed, 47 insertions, 0 deletions
diff --git a/example/asm_x86.py b/example/asm_x86.py
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--- /dev/null
+++ b/example/asm_x86.py
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+#! /usr/bin/env python
+
+from miasm2.core.cpu import parse_ast
+from miasm2.arch.x86.arch import mn_x86, base_expr, variable
+from miasm2.core import parse_asm
+from miasm2.expression.expression import *
+from miasm2.core import asmbloc
+from elfesteem.strpatchwork import StrPatchwork
+
+reg_and_id = dict(mn_x86.regs.all_regs_ids_byname)
+
+
+def my_ast_int2expr(a):
+    return ExprInt32(a)
+
+
+def my_ast_id2expr(t):
+    return reg_and_id.get(t, ExprId(t, size=32))
+
+my_var_parser = parse_ast(my_ast_id2expr, my_ast_int2expr)
+base_expr.setParseAction(my_var_parser)
+
+blocs, symbol_pool = parse_asm.parse_txt(mn_x86, 32, '''
+main:
+  PUSH EBP
+  MOV  EBP, ESP
+  SUB  ESP, 0x100
+  MOV  EAX, 0x1337
+  LEA  ESI, DWORD PTR [mystr]
+  MOV  ESP, EBP
+  POP  EBP
+  RET
+mystr:
+.string "test string"
+''')
+
+# fix shellcode addr
+symbol_pool.set_offset(symbol_pool.getby_name("main"), 0x0)
+s = StrPatchwork()
+resolved_b, patches = asmbloc.asm_resolve_final(
+    mn_x86, '32', blocs[0], symbol_pool)
+for offset, raw in patches.items():
+    s[offset] = raw
+
+print patches
+
+open('demo_x86_32.bin', 'wb').write(str(s))