[lld] r253879 - [ELF/AArch64] Fix overflow checks for R_AARCH64_PREL16 and _PREL32 relocations.

[Igor Kudrin via llvm-commits]

Author: ikudrin
Date: Mon Nov 23 10:56:10 2015
New Revision: 253879

URL: http://llvm.org/viewvc/llvm-project?rev=253879&view=rev
Log:
[ELF/AArch64] Fix overflow checks for R_AARCH64_PREL16 and _PREL32 relocations.

Modified:
    lld/trunk/ELF/Target.cpp

Modified: lld/trunk/ELF/Target.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Target.cpp?rev=253879&r1=253878&r2=253879&view=diff
==============================================================================
--- lld/trunk/ELF/Target.cpp (original)
+++ lld/trunk/ELF/Target.cpp Mon Nov 23 10:56:10 2015
@@ -755,12 +755,12 @@ void AArch64TargetInfo::relocateOne(uint
     or32le(Loc, (SA & 0xFFF) << 10);
     break;
   case R_AARCH64_PREL16:
-    if (!isInt<16>(SA))
+    if (!isInt<16>(SA - P))
       error("Relocation R_AARCH64_PREL16 out of range");
     write16le(Loc, SA - P);
     break;
   case R_AARCH64_PREL32:
-    if (!isInt<32>(SA))
+    if (!isInt<32>(SA - P))
       error("Relocation R_AARCH64_PREL32 out of range");
     write32le(Loc, SA - P);
     break;