commit 927f7ccc6beac42ae894c43cbc75b82919052cb5
author Jim Stichnoth <stichnot@chromium.org> Thu Mar 19 23:23:00 2015 -0700
committer Jim Stichnoth <stichnot@chromium.org> Thu Mar 19 23:23:00 2015 -0700
tree 88bb928ce65ce2ed2b9a97f894c6abfe0346568c
parent 5bfe21578536c437ef17052038c5d85eaf1bd484

Subzero: Support non-IRT immediate calls with -filetype=iasm.

This is done by emitting the following:
  .byte 0xe8
  .long __Sz_AbsoluteZero -4 - .

The linker is passed an argument like
  --defsym=__Sz_AbsoluteZero=0
to force the symbol's value to 0.

This special symbol is needed due to an llvm-mc parsing bug.

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/1027593002

src/assembler.cpp

diff --git a/src/assembler.cpp b/src/assembler.cpp
index d131426..931998e 100644
--- a/src/assembler.cpp
+++ b/src/assembler.cpp
@@ -136,9 +136,9 @@
       Str << "\n";
     }
     Str << "\t.long ";
-    NextFixup->emit(Ctx);
+    NextFixup->emit(Ctx, buffer_.Load<RelocOffsetT>(NextFixupLoc));
     if (fixupIsPCRel(NextFixup->kind()))
-      Str << " - (. + " << FixupSize << ")";
+      Str << " - .";
     Str << "\n";
     CurPosition = NextFixupLoc + FixupSize;
     assert(CurPosition <= EndPosition);