[PATCH] D25069: Fix PREL31 relocation on ARM

[Yichao Yu via llvm-commits]

yuyichao updated this revision to Diff 73203.
yuyichao added a comment.

Fix bit31 mask....


https://reviews.llvm.org/D25069

Files:
  lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp


Index: lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
===================================================================
--- lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -463,7 +463,11 @@
 
   case ELF::R_ARM_NONE:
     break;
+    // Write a 31bit signed offset
   case ELF::R_ARM_PREL31:
+    *TargetPtr &= 0x80000000;
+    *TargetPtr |= (Value - FinalAddress) & ~0x80000000;
+    break;
   case ELF::R_ARM_TARGET1:
   case ELF::R_ARM_ABS32:
     *TargetPtr = Value;


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