[llvm] r225507 - ARM: add support for R_ARM_ABS8 relocations

[Saleem Abdulrasool]

Author: compnerd
Date: Thu Jan  8 23:59:12 2015
New Revision: 225507

URL: http://llvm.org/viewvc/llvm-project?rev=225507&view=rev
Log:
ARM: add support for R_ARM_ABS8 relocations

Add support for R_ARM_ABS8 relocation.  Addresses PR22126.

Added:
    llvm/trunk/test/MC/ARM/reloc-abs8.s
Modified:
    llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp

Modified: llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp?rev=225507&r1=225506&r2=225507&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp (original)
+++ llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp Thu Jan  8 23:59:12 2015
@@ -148,6 +148,14 @@ unsigned ARMELFObjectWriter::GetRelocTyp
   } else {
     switch ((unsigned)Fixup.getKind()) {
     default: llvm_unreachable("invalid fixup kind!");
+    case FK_Data_1:
+      switch (Modifier) {
+      default: llvm_unreachable("unsupported Modifier");
+      case MCSymbolRefExpr::VK_None:
+        Type = ELF::R_ARM_ABS8;
+        break;
+      }
+      break;
     case FK_Data_4:
       switch (Modifier) {
       default: llvm_unreachable("Unsupported Modifier");

Added: llvm/trunk/test/MC/ARM/reloc-abs8.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ARM/reloc-abs8.s?rev=225507&view=auto
==============================================================================
--- llvm/trunk/test/MC/ARM/reloc-abs8.s (added)
+++ llvm/trunk/test/MC/ARM/reloc-abs8.s Thu Jan  8 23:59:12 2015
@@ -0,0 +1,10 @@
+@ RUN: llvm-mc -triple armv7-eabi -filetype obj -o - %s | llvm-objdump -r - \
+@ RUN:     | FileCheck %s
+
+	.syntax unified
+
+	.byte abs8_0 -128
+	.byte abs8_1 +255
+
+@ CHECK: 0 R_ARM_ABS8 abs8_0
+@ CHECK: 1 R_ARM_ABS8 abs8_1