diff options
| author | whitequark <whitequark@whitequark.org> | 2020-05-23 19:50:09 +0000 |
|---|---|---|
| committer | whitequark <whitequark@whitequark.org> | 2020-05-23 20:57:26 +0000 |
| commit | e7bb04769d5d7262d3ecfd0de49953078174a880 (patch) | |
| tree | 20100cd95832d9da3dcebcdb263ba5b05482ffe2 /CMakeLists.txt | |
| parent | 2692c6f6cce41d22847058c85715e8822feb9b87 (diff) | |
| download | nextpnr-e7bb04769d5d7262d3ecfd0de49953078174a880.tar.gz nextpnr-e7bb04769d5d7262d3ecfd0de49953078174a880.tar.bz2 nextpnr-e7bb04769d5d7262d3ecfd0de49953078174a880.zip | |
Port nextpnr-{ice40,ecp5} to WASI.
This involves very few changes, all typical to WASM ports:
* WASM doesn't currently support threads or atomics so those are
disabled.
* WASM doesn't currently support exceptions so the exception
machinery is stubbed out.
* WASM doesn't (and can't) have mmap(), so an emulation library is
used. That library currently doesn't support MAP_SHARED flags,
so MAP_PRIVATE is used instead.
There is also an update to bring ECP5 bbasm CMake rules to parity
with iCE40 ones, since although it is possible to embed chipdb into
nextpnr on WASM, a 200 MB WASM file has very few practical uses.
The README is not updated and there is no included toolchain file
because at the moment it's not possible to build nextpnr with
upstream boost and wasi-libc. Boost requires a patch (merged, will
be available in boost 1.74.0), wasi-libc requires a few unmerged
patches.
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index c1d9f1a6..4fa8f511 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -14,6 +14,24 @@ option(SERIALIZE_CHIPDB "Never build chipdb in parallel to reduce peak memory us set(Boost_NO_BOOST_CMAKE ON) +if(WASI) + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lwasi-emulated-mman") + set(USE_THREADS OFF) + add_definitions( + -DBOOST_EXCEPTION_DISABLE + -DBOOST_NO_EXCEPTIONS + -DBOOST_SP_NO_ATOMIC_ACCESS + -DBOOST_AC_DISABLE_THREADS + -DBOOST_NO_CXX11_HDR_MUTEX + ) +else() + set(USE_THREADS ON) +endif() + +if (NOT USE_THREADS) + add_definitions(-DNPNR_DISABLE_THREADS) +endif() + set(link_param "") if (STATIC_BUILD) set(Boost_USE_STATIC_LIBS ON) @@ -84,7 +102,6 @@ else() set(CMAKE_CXX_FLAGS_RELEASE "-Wall -fPIC -O3 -g -pipe") endif() endif() -set(CMAKE_DEFIN) set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/3rdparty/sanitizers-cmake/cmake;." ${CMAKE_MODULE_PATH}) @@ -99,7 +116,10 @@ endif() find_package(Sanitizers) # List of Boost libraries to include -set(boost_libs filesystem thread program_options iostreams system) +set(boost_libs filesystem program_options iostreams system) +if (USE_THREADS) + list(APPEND boost_libs thread) +endif() if (BUILD_GUI AND NOT BUILD_PYTHON) message(FATAL_ERROR "GUI requires Python to build") @@ -229,6 +249,10 @@ foreach (family ${ARCH}) # Add the CLI binary target add_executable(${PROGRAM_PREFIX}nextpnr-${family} ${COMMON_FILES} ${${ufamily}_FILES}) + if (WASI) + # set(CMAKE_EXECUTABLE_SUFFIX) breaks CMake tests for some reason + set_property(TARGET ${PROGRAM_PREFIX}nextpnr-${family} PROPERTY SUFFIX ".wasm") + endif() install(TARGETS ${PROGRAM_PREFIX}nextpnr-${family} RUNTIME DESTINATION bin) target_compile_definitions(${PROGRAM_PREFIX}nextpnr-${family} PRIVATE MAIN_EXECUTABLE) |