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authorJoseph Huber <huberjn@outlook.com>2024-01-22 07:27:06 -0600
committerGitHub <noreply@github.com>2024-01-22 07:27:06 -0600
commitb689b4fe55103a04eac847964e126b6048b89ae0 (patch)
tree3f980569b78f1254704505a7391e8d7e498974ba
parentab1b4991cfacfe04a579bf0b0ff4a704a6224d4a (diff)
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[LLVM][CMake] Add ffi_static target for the FFI static library (#78779)
Summary: This patch is an attempt to make the `find_package(FFI)` support in LLVM prefer to provide the static library version if present. This is currently an optional library for building `libffi`, and its presence implies that it should likely be used. This patch is an attempt to fix some problems observed with testing programs linked against `libffi` on many different systems that could have conflicting paths. Linking it statically prevents this. This patch adds the `ffi_static` target for this library.
-rw-r--r--llvm/cmake/modules/FindFFI.cmake14
-rw-r--r--openmp/libomptarget/plugins-nextgen/CMakeLists.txt13
2 files changed, 20 insertions, 7 deletions
diff --git a/llvm/cmake/modules/FindFFI.cmake b/llvm/cmake/modules/FindFFI.cmake
index c9ba104..8e67c5d 100644
--- a/llvm/cmake/modules/FindFFI.cmake
+++ b/llvm/cmake/modules/FindFFI.cmake
@@ -15,6 +15,7 @@
# FFI_FOUND
# FFI_INCLUDE_DIRS
# FFI_LIBRARIES
+# FFI_STATIC_LIBRARIES
# HAVE_FFI_CALL
#
# HAVE_FFI_H or HAVE_FFI_FFI_H is defined depending on the ffi.h include path.
@@ -34,7 +35,8 @@ else()
endif()
endif()
-find_library(FFI_LIBRARIES ffi PATHS ${FFI_LIBRARY_DIR})
+find_library(FFI_LIBRARIES NAMES ffi PATHS ${FFI_LIBRARY_DIR})
+find_library(FFI_STATIC_LIBRARIES NAMES libffi.a PATHS ${FFI_LIBRARY_DIR})
if(FFI_LIBRARIES)
include(CMakePushCheckState)
@@ -76,6 +78,7 @@ find_package_handle_standard_args(FFI
${required_includes}
HAVE_FFI_CALL)
mark_as_advanced(FFI_LIBRARIES
+ FFI_STATIC_LIBRARIES
FFI_INCLUDE_DIRS
HAVE_FFI_CALL
FFI_HEADER
@@ -83,11 +86,18 @@ mark_as_advanced(FFI_LIBRARIES
HAVE_FFI_FFI_H)
if(FFI_FOUND)
- if(NOT TARGET FFI::ffi)
+ if(NOT TARGET FFI::ffi AND FFI_LIBRARIES)
add_library(FFI::ffi UNKNOWN IMPORTED)
set_target_properties(FFI::ffi PROPERTIES IMPORTED_LOCATION "${FFI_LIBRARIES}")
if(FFI_INCLUDE_DIRS)
set_target_properties(FFI::ffi PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${FFI_INCLUDE_DIRS}")
endif()
endif()
+ if(NOT TARGET FFI::ffi_static AND FFI_STATIC_LIBRARIES)
+ add_library(FFI::ffi_static UNKNOWN IMPORTED)
+ set_target_properties(FFI::ffi_static PROPERTIES IMPORTED_LOCATION "${FFI_STATIC_LIBRARIES}")
+ if(FFI_INCLUDE_DIRS)
+ set_target_properties(FFI::ffi_static PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${FFI_INCLUDE_DIRS}")
+ endif()
+ endif()
endif()
diff --git a/openmp/libomptarget/plugins-nextgen/CMakeLists.txt b/openmp/libomptarget/plugins-nextgen/CMakeLists.txt
index 9b4e945..f5fc3b6 100644
--- a/openmp/libomptarget/plugins-nextgen/CMakeLists.txt
+++ b/openmp/libomptarget/plugins-nextgen/CMakeLists.txt
@@ -49,11 +49,14 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "${tmachine}$")
)
if(LIBOMPTARGET_DEP_LIBFFI_FOUND)
- libomptarget_say("Building ${tmachine_libname} plugin linked with libffi")
- target_link_libraries("omptarget.rtl.${tmachine_libname}" PRIVATE
- ${FFI_LIBRARIES})
- target_include_directories("omptarget.rtl.${tmachine_libname}" PRIVATE
- ${FFI_INCLUDE_DIRS})
+ libomptarget_say("Building ${tmachine_libname} plugin linked with libffi")
+ if(FFI_STATIC_LIBRARIES)
+ target_link_libraries(
+ "omptarget.rtl.${tmachine_libname}" PRIVATE FFI::ffi_static)
+ else()
+ target_link_libraries(
+ "omptarget.rtl.${tmachine_libname}" PRIVATE FFI::ffi)
+ endif()
else()
libomptarget_say("Building ${tmachine_libname} plugie for dlopened libffi")
target_sources("omptarget.rtl.${tmachine_libname}" PRIVATE