[Lldb-commits] [PATCH] D71800: [CMake] Add $ORIGIN/../../../../lib to rpath if BUILD_SHARED_LIBS AND UNIX

[Fangrui Song via Phabricator via lldb-commits]

MaskRay created this revision.
MaskRay added reviewers: clayborg, JDevlieghere, jingham, labath.
Herald added subscribers: lldb-commits, kristof.beyls, mgorny.
Herald added a project: LLDB.

For -DBUILD_SHARED_LIBS=On builds, lib/liblldb.so depends on lib/*.so .
lib/python2.7/dist-packages/lldb/_lldb.so is a symlink to
lib/liblldb.so, which needs an additional rpath
`$ORIGIN/../../../../lib` to load. This fixes an import error from
lib/python2.7/dist-packages/lldb/__init__.py

  from . import _lldb
  ImportError: libLLVMAArch64CodeGen.so.10git: cannot open shared object file: No such file or directory


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71800

Files:
  lldb/source/API/CMakeLists.txt


Index: lldb/source/API/CMakeLists.txt
===================================================================
--- lldb/source/API/CMakeLists.txt
+++ lldb/source/API/CMakeLists.txt
@@ -111,6 +111,19 @@
   ${option_install_prefix}
 )
 
+# lib/pythonX.Y/dist-packages/lldb/_lldb.so is a symlink to lib/liblldb.so .
+# Add an additional rpath \$ORIGIN/../../../../lib so that _lldb.so can be
+# loaded from Python.
+if(LLDB_ENABLE_PYTHON AND BUILD_SHARED_LIBS AND UNIX)
+  if(LLVM_INSTALL_PREFIX AND NOT (LLVM_INSTALL_PREFIX STREQUAL CMAKE_INSTALL_PREFIX))
+    set(extra_libdir ${LLVM_LIBRARY_DIR})
+  elseif(LLVM_BUILD_LIBRARY_DIR)
+    set(extra_libdir ${LLVM_LIBRARY_DIR})
+  endif()
+  set(_install_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" "\$ORIGIN/../../../../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
+  set_target_properties(liblldb PROPERTIES INSTALL_RPATH "${_install_rpath}")
+endif()
+
 if (MSVC)
   set_source_files_properties(SBReproducer.cpp PROPERTIES COMPILE_FLAGS /bigobj)
 endif()


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