Dear all,
I want to build an LLVM pass by using CMake.
After reading the ralevant part of the documentation (
http://llvm.org/releases/3.1/docs/CMake.html#passdev),
I copied the files in the llvm/lib/Transforms/Hello to another folder in
order to give a try.
Then I renamed the folder as Hello2.
Then I have changed CMakeLists.txt as following:
cmake_minimum_required(VERSION 2.8)
# A convenience variable:
set(LLVM_ROOT "../llvm_cmake_build" CACHE PATH "Root of LLVM
install.")
# A bit of a sanity check:
if( NOT EXISTS ${LLVM_ROOT}/include/llvm )
message(FATAL_ERROR "LLVM_ROOT (${LLVM_ROOT}) is not a valid LLVM
install")
endif()
# We incorporate the CMake features provided by LLVM:
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
"${LLVM_ROOT}/share/llvm/cmake")
include(LLVMConfig)
find_package(LLVM)
if( NOT LLVM_FOUND )
message(FATAL_ERROR "LLVM package can't be found. Set
CMAKE_PREFIX_PATH
variable to LLVM's installation prefix.")
endif()
# Define add_llvm_* macro's.
include(AddLLVM)
add_definitions(${LLVM_DEFINITIONS})
include_directories(${LLVM_INCLUDE_DIRS})
link_directories(${LLVM_LIBRARY_DIRS})
add_llvm_loadable_module( LLVMHello
Hello.cpp
)
Furthermore, I created a separate build and install directories in order to
build and install my pass.
cd Hello2_build
cmake ../Hello2 -DCMAKE_INSTALL_PREFIX=../Hello2_install/
-- The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
It seems that cmake is ok. When I run make install, it gives errors (see
below) and i think the reason is that it can not find the directory to llvm
header files.
I could not figure it out which variable to set and how to use it in order
to point the required directory ?
( as in the make pass build which requires LLVM_SRC_ROOT LLVM_OBJ_ROOT
variables to be set)
Hello2/Hello.cpp:17:23: error: llvm/Pass.h: No such file or directory
Hello2/Hello.cpp:18:27: error: llvm/Function.h: No such file or directory
Hello2/Hello.cpp:19:38: error: llvm/Support/raw_ostream.h: No such file or
directory
Hello2/Hello.cpp:20:32: error: llvm/ADT/Statistic.h: No such file or
directory
Hello2/Hello.cpp:21: error: ‘llvm’ is not a namespace-name
...
Your feedback is very welcome.
Thanks.
--
Best Regards,
Erkan
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erkan diken <erkandiken at gmail.com> writes: [snip]> It seems that cmake is ok. When I run make install, it gives errors (see > below) and i think the reason is that it can not find the directory to llvm > header files. > I could not figure it out which variable to set and how to use it in order > to point the required directory ? > ( as in the make pass build which requires LLVM_SRC_ROOT LLVM_OBJ_ROOT > variables to be set) > > Hello2/Hello.cpp:17:23: error: llvm/Pass.h: No such file or directory > Hello2/Hello.cpp:18:27: error: llvm/Function.h: No such file or directory > Hello2/Hello.cpp:19:38: error: llvm/Support/raw_ostream.h: No such file or > directory > Hello2/Hello.cpp:20:32: error: llvm/ADT/Statistic.h: No such file or > directory > Hello2/Hello.cpp:21: error: ‘llvm’ is not a namespace-name > ... > > Your feedback is very welcome.I think this is the same problem that was reported here a few weeks ago. IIRC LLVM_INCLUDE_DIRS and LLVM_LIBRARY_DIRS are wrong after install. Try with include_directories( ${LLVM_ROOT}/include ) link_directories( ${LLVM_ROOT}/lib )
Yes, it works. Thanks Oscar. On Mon, Jul 23, 2012 at 10:38 PM, Óscar Fuentes <ofv at wanadoo.es> wrote:> The following message is a courtesy copy of an article > that has been posted to gmane.comp.compilers.llvm.devel as well. > > erkan diken <erkandiken at gmail.com> writes: > > [snip] > > > It seems that cmake is ok. When I run make install, it gives errors (see > > below) and i think the reason is that it can not find the directory to > llvm > > header files. > > I could not figure it out which variable to set and how to use it in > order > > to point the required directory ? > > ( as in the make pass build which requires LLVM_SRC_ROOT LLVM_OBJ_ROOT > > variables to be set) > > > > Hello2/Hello.cpp:17:23: error: llvm/Pass.h: No such file or directory > > Hello2/Hello.cpp:18:27: error: llvm/Function.h: No such file or directory > > Hello2/Hello.cpp:19:38: error: llvm/Support/raw_ostream.h: No such file > or > > directory > > Hello2/Hello.cpp:20:32: error: llvm/ADT/Statistic.h: No such file or > > directory > > Hello2/Hello.cpp:21: error: ‘llvm’ is not a namespace-name > > ... > > > > Your feedback is very welcome. > > I think this is the same problem that was reported here a few weeks > ago. IIRC LLVM_INCLUDE_DIRS and LLVM_LIBRARY_DIRS are wrong after > install. Try with > > include_directories( ${LLVM_ROOT}/include ) > link_directories( ${LLVM_ROOT}/lib ) >-- Best Regards, Erkan Diken ------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120724/f5f3653a/attachment.html>