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Handles libffi on the CMake build.

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Patch by arrowdodger!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123976 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Oscar Fuentes 2011-01-21 15:42:54 +00:00
parent 030160073d
commit 5969379145
5 changed files with 58 additions and 3 deletions
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4
CMakeLists.txt
View File

@ -114,6 +114,10 @@ if(LLVM_ENABLE_TIMESTAMPS)
set(ENABLE_TIMESTAMPS 1)
endif()
option(LLVM_ENABLE_FFI "Use libffi to call external functions from the interpreter" OFF)
set(FFI_LIBRARY_DIR "" CACHE PATH "Additional directory, where CMake should search for libffi.so")
set(FFI_INCLUDE_DIR "" CACHE PATH "Additional directory, where CMake should search for ffi.h or ffi/ffi.h")
set(C_INCLUDE_DIRS "" CACHE STRING
"Colon separated list of directories clang will search for headers.")

29
cmake/config-ix.cmake
View File

@ -190,6 +190,35 @@ llvm_find_program(fdp)
llvm_find_program(dot)
llvm_find_program(dotty)
if( LLVM_ENABLE_FFI )
find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR})
if( FFI_INCLUDE_PATH )
set(FFI_HEADER ffi.h CACHE INTERNAL "")
set(HAVE_FFI_H 1 CACHE INTERNAL "")
else()
find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR})
if( FFI_INCLUDE_PATH )
set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "")
set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "")
endif()
endif()
if( NOT FFI_HEADER )
message(FATAL_ERROR "libffi includes are not found.")
endif()
find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR})
if( NOT FFI_LIBRARY_PATH )
message(FATAL_ERROR "libffi is not found.")
endif()
list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL)
list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
endif( LLVM_ENABLE_FFI )
# Define LLVM_MULTITHREADED if gcc atomic builtins exists.
include(CheckAtomic)

6
docs/CMake.html
View File

@ -338,6 +338,12 @@
By default, <tt>&quot;-sv --no-progress-bar&quot;</tt>
on Visual C++ and Xcode,
<tt>&quot;-sv&quot;</tt> on others.</dd>
<dt><b>LLVM_ENABLE_FFI</b>:BOOL</dt>
<dd>Indicates whether LLVM Interpreter will be linked with Foreign
Function Interface library. If the library or its headers are
installed on a custom location, you can set the variables
FFI_INCLUDE_DIR and FFI_LIBRARY_DIR. Defaults to OFF.</dd>
</dl>
</div>

6
include/llvm/Config/config.h.cmake
View File

@ -130,13 +130,13 @@
#cmakedefine HAVE_FENV_H ${HAVE_FENV_H}
/* Define if libffi is available on this platform. */
#undef HAVE_FFI_CALL
#cmakedefine HAVE_FFI_CALL ${HAVE_FFI_CALL}
/* Define to 1 if you have the <ffi/ffi.h> header file. */
#undef HAVE_FFI_FFI_H
#cmakedefine HAVE_FFI_FFI_H ${HAVE_FFI_FFI_H}
/* Define to 1 if you have the <ffi.h> header file. */
#undef HAVE_FFI_H
#cmakedefine HAVE_FFI_H ${HAVE_FFI_H}
/* Set to 1 if the finite function is found in <ieeefp.h> */
#cmakedefine HAVE_FINITE_IN_IEEEFP_H ${HAVE_FINITE_IN_IEEEFP_H}

16
lib/ExecutionEngine/Interpreter/CMakeLists.txt
View File

@ -1,5 +1,21 @@
# If the user required a custom path for ffi headers, use it on its
# abolute form (see config-ix.cmake):
if( FFI_INCLUDE_DIR )
include_directories( ${FFI_INCLUDE_PATH} )
endif()
# If the user required a custom path for libffi, use it on its abolute
# form (see config-ix.cmake):
if( FFI_LIBRARY_DIR )
link_directories( ${FFI_LIBRARY_PATH} )
endif()
add_llvm_library(LLVMInterpreter
Execution.cpp
ExternalFunctions.cpp
Interpreter.cpp
)
if( LLVM_ENABLE_FFI )
target_link_libraries( LLVMInterpreter ffi )
endif()