RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Code Issues Projects Releases Wiki Activity

Provide bootstrap support to build only llvm+clang when using cmake.

Browse Source 
Where a source tree is complete with lld, lldb and polly, it may not be possible to use cmake to configure build scripts if the host compiler it not capable of compiling these sub-projects.  This change makes it possible to first build a bootstrap clang compiler when can then be used to build a complete llvm toolchain.  An example bootstrap build sequence could be as follows:

$ mkdir bootstrap
$ cd bootstrap
$ cmake -G 'Unix Makefiles'
        -DCMAKE_BUILD_TYPE:STRING=Release
        -DCMAKE_PREFIX_PATH:STRING=$(pwd)
        -DLLVM_TARGETS_TO_BUILD:STRING=host
        -DLLVM_INCLUDE_TOOLS:STRING=bootstrap-only
        ../source
$ make clang  # build clang only for host

$ cd ..
$ export CC=$(realpath bootstrap/bin)/clang
$ export CXX=$(realpath bootstrap/bin)/clang++

$ mkdir final
$ cd final
$ cmake -G 'Unix Makefiles' ../source
$ make all check-all

llvm-svn: 184924
This commit is contained in:
Andy Gibbs 2013-06-26 08:05:08 +00:00
parent d76c23149b
commit a57bb6a6f7
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
tools/CMakeLists.txt
View File

@ -58,8 +58,11 @@ if( LLVM_ENABLE_PIC )
endif()
add_llvm_external_project(clang)
add_llvm_external_project(lld)
add_llvm_external_project(lldb)
add_llvm_external_project(polly)
if( NOT LLVM_INCLUDE_TOOLS STREQUAL "bootstrap-only" )
add_llvm_external_project(lld)
add_llvm_external_project(lldb)
add_llvm_external_project(polly)
endif()
set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)