[PATCH] D50520: Add support for Hexagon's R_HEX_HI16/R_HEX_LO16 relocations.

[Sid Manning via Phabricator via llvm-commits]

sidneym created this revision.
sidneym added reviewers: ruiu, kparzysz, bcain, shankare.
Herald added subscribers: arichardson, emaste.
Herald added a reviewer: espindola.

Add HI/LO relocations and testcase.


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D50520

Files:
  ELF/Arch/Hexagon.cpp
  test/ELF/hexagon.s


Index: test/ELF/hexagon.s
===================================================================
--- test/ELF/hexagon.s
+++ test/ELF/hexagon.s
@@ -151,3 +151,11 @@
 # R_HEX_6_X
 { r0 = ##_start; r2 = r16 }
 # CHECK: 28003082   	r0 = ##69632; 	r2 = r16 }
+
+# R_HEX_HI16
+r0.h = #HI(_start)
+# CHECK: r0.h = #1
+
+# R_HEX_LO16
+r0.l = #LO(_start)
+# CHECK: r0.l = #4096
Index: ELF/Arch/Hexagon.cpp
===================================================================
--- ELF/Arch/Hexagon.cpp
+++ ELF/Arch/Hexagon.cpp
@@ -135,6 +135,12 @@
   case R_HEX_B32_PCREL_X:
     or32le(Loc, applyMask(0x0fff3fff, Val >> 6));
     break;
+  case R_HEX_HI16:
+    or32le(Loc, applyMask(0x00c03fff, Val >> 16));
+    break;
+  case R_HEX_LO16:
+    or32le(Loc, applyMask(0x00c03fff, Val));
+    break;
   default:
     error(getErrorLocation(Loc) + "unrecognized reloc " + toString(Type));
     break;


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