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authorFabrice Desclaux <fabrice.desclaux@cea.fr>2017-04-14 13:32:59 +0200
committerFabrice Desclaux <fabrice.desclaux@cea.fr>2017-04-20 12:31:33 +0200
commit16fc339e53bfc908dbcd73fc912d7d75aed7218c (patch)
treef13faa66157ddd4c12dff191d314d81e5f2bf33f /miasm2/arch/mips32/jit.py
parentff981a11ef71960a239ec44295f06bb384124521 (diff)
downloadmiasm-16fc339e53bfc908dbcd73fc912d7d75aed7218c.tar.gz
miasm-16fc339e53bfc908dbcd73fc912d7d75aed7218c.zip
Ir: make AssignBlock immutable
Diffstat (limited to 'miasm2/arch/mips32/jit.py')
-rw-r--r--miasm2/arch/mips32/jit.py12
1 files changed, 8 insertions, 4 deletions
diff --git a/miasm2/arch/mips32/jit.py b/miasm2/arch/mips32/jit.py
index bfa9c5fd..939a0e50 100644
--- a/miasm2/arch/mips32/jit.py
+++ b/miasm2/arch/mips32/jit.py
@@ -5,6 +5,7 @@ from miasm2.core import asmblock
 from miasm2.core.utils import pck32, upck32
 from miasm2.arch.mips32.sem import ir_mips32l, ir_mips32b
 from miasm2.jitter.codegen import CGen
+from miasm2.ir.ir import AssignBlock
 import miasm2.expression.expression as m2_expr
 
 log = logging.getLogger('jit_mips32')
@@ -43,18 +44,21 @@ class mipsCGen(CGen):
             if not instr.breakflow():
                 continue
             for irblock in irblocks:
-                for assignblock in irblock.irs:
+                for idx, assignblock in enumerate(irblock.irs):
                     if self.ir_arch.pc not in assignblock:
                         continue
+                    new_assignblock = dict(assignblock)
                     # Add internal branch destination
-                    assignblock[self.delay_slot_dst] = assignblock[
+                    new_assignblock[self.delay_slot_dst] = assignblock[
                         self.ir_arch.pc]
-                    assignblock[self.delay_slot_set] = m2_expr.ExprInt(1, 32)
+                    new_assignblock[self.delay_slot_set] = m2_expr.ExprInt(1, 32)
                     # Replace IRDst with next instruction
-                    assignblock[self.ir_arch.IRDst] = m2_expr.ExprId(
+                    new_assignblock[self.ir_arch.IRDst] = m2_expr.ExprId(
                         self.ir_arch.get_next_instr(instr))
                     irblock.dst = m2_expr.ExprId(
                         self.ir_arch.get_next_instr(instr))
+                    irblock.irs[idx] = AssignBlock(new_assignblock)
+
         return irblocks_list
 
     def gen_finalize(self, block):