Author: tberghammer
Date: Fri Dec 18 09:35:08 2015
New Revision: 256000
URL: http://llvm.org/viewvc/llvm-project?rev=256000&view=rev
Log:
Fix the emulation of arm strd instruction
The incorrect instruction emulation caused issues in the stack unwinding
code when strd was used to push 2 register to the stack with writeback.
Modified:
lldb/trunk/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
Modified: lldb/trunk/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp?rev=256000&r1=255999&r2=256000&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
(original)
+++ lldb/trunk/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp Fri Dec
18 09:35:08 2015
@@ -10615,9 +10615,12 @@ EmulateInstructionARM::EmulateSTRDImm (c
//if wback then R[n] = offset_addr;
if (wback)
{
- context.type = eContextAdjustBaseRegister;
+ if (n == 13)
+ context.type = eContextAdjustStackPointer;
+ else
+ context.type = eContextAdjustBaseRegister;
context.SetAddress (offset_addr);
-
+
if (!WriteRegisterUnsigned (context, eRegisterKindDWARF, dwarf_r0
+ n, offset_addr))
return false;
}
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