Low Level Virtual Machine (LLVM) + IVT/OVT (Interleaved/Ordered VTables)
================================

To get started:


1) Setup prerequisites - download and build binutils with gold support.
Lets say that binutils source is in $(BINUTILS_SRC) and the built version
is in $(BINUTILS_BUILD).

  git clone --depth 1 git://sourceware.org/git/binutils-gdb.git $(BINUTILS_SRC)
  mkdir $(BINUTILS_BUILD)
  cd $(BINUTILS_BUILD)
  $(BINUTILS_SRC)/configure --enable-gold --enable-plugins --disable-werror
  make -j 8 (or however many cores you can spare)

(If you run into any weird errors with your binutils build, try removing the 
$(BINUTILS_BUILD) directory, re-creating it, and running configure/make again)

2) Clone the repo in $(REPO_DIR)

  git clone https://github.com/UCSD-PL/ivt.git $(REPO_DIR)

3) Build the repo in a directory $(REPO_BUILD_DIR):

  mkdir $(REPO_BUILD_DIR)
  cd $(REPO_BUILD_DIR)
  $(REPO_DIR)/configure --enable-optimized=1 --with-binutils-include=$(BINUTILS_SRC)/include
  make -j 8 (or however many cores you can spare...)

4) Set the benchmark paths - edit $(REPO_DIR)/benchmarks/folder.cfg and set
  the variables:

  LLVM_DIR="$(REPO_DIR)"
  LLVM_BUILD_DIR="$(REPO_BUILD_DIR)/Release+Asserts/bin"
  BINUTILS_BUILD_DIR="$(BINUTILS_BUILD)"
  
5) Symlink ld-new to ld inside the binutils build's gold directory:

  cd $(BINUTILS_BUILD)/gold
  ln -s ld-new ld

6) Build the two libraries - libdlcfi and libdyncast

  cd $(REPO_DIR)/libdlcfi
  make clean all
  cd $(REPO_DIR)/libdyncast
  make clean all

7) Run the benchmarks

  cd $(REPO_DIR)/benchmarks
  ./run_all_benchmarks.sh

If the benchmarks run successfully, you should see something like this in the end:

############################################################
DONE !!!
############################################################