Adding support for printing operands symbolically to llvm's public 'C'

disassembler API.  Hooked this up to the ARM target so such tools as Darwin's
otool(1) can now print things like branch targets for example this:
  blx _puts
instead of this:
  blx #-36
And even print the expression encoded in the Mach-O relocation entried for
things like this:
  movt r0, :upper16:((_foo-_bar)+1234)

llvm-svn: 129284

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
index 74f8b53b48c..579e1a49b12 100644
--- a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
+++ b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
@@ -422,6 +422,10 @@ bool ARMDisassembler::getInstruction(MCInst &MI,
   if (!Builder)
     return false;
 
+  Builder->setupBuilderForSymbolicDisassembly(getLLVMOpInfoCallback(),
+                                              getDisInfoBlock(), getMCContext(),
+                                              Address);
+
   if (!Builder->Build(MI, insn))
     return false;
 
@@ -504,6 +508,10 @@ bool ThumbDisassembler::getInstruction(MCInst &MI,
 
   Builder->SetSession(const_cast<Session *>(&SO));
 
+  Builder->setupBuilderForSymbolicDisassembly(getLLVMOpInfoCallback(),
+                                              getDisInfoBlock(), getMCContext(),
+                                              Address);
+
   if (!Builder->Build(MI, insn))
     return false;