c++ - How do I build an llvm-pass and then use clang to load the generated shared library in another rule?

Question

I have the following project structure:

llvm-pass/
  CMakeLists.txt
  BUILD
program/
  main.cc
  BUILD
WORKSPACE

In llvm-pass/BUILD

cmake_external(
  name="llvm-pass",
  output="llvm-pass.so"
)

In program/BUILD

cc_binary(
  name="program",
  srcs = ["main.cc"],
  copts = ["-Xclang -load ???"],
  data = ["//llvm-pass"]
)

I don't know how to determine the path of the llvm-pass object so that I may pass it as an argument to the program compilation rule. Any ideas?

Answer 1

等待大神答复