ARM: add support for R_ARM_ABS8 relocations

Add support for R_ARM_ABS8 relocation. Addresses PR22126. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225507 91177308-0d34-0410-b5e6-96231b3b80d8
Svengali · Jan 9, 2015 · ea4fe48 · ea4fe48
1 parent c41acff
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diff --git a/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp b/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
@@ -148,6 +148,14 @@ unsigned ARMELFObjectWriter::GetRelocTypeInner(const MCValue &Target,
   } 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");

diff --git a/test/MC/ARM/reloc-abs8.s b/test/MC/ARM/reloc-abs8.s
@@ -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