1# CrossWinToARMLinux.cmake
2#
3# Set up a CMakeCache for a cross Windows to ARM Linux toolchain build.
4#
5# This cache file can be used to build a cross toolchain to ARM Linux
6# on Windows platform.
7#
8# NOTE: the build requires a development ARM Linux root filesystem to use
9# proper target platform depended library and header files.
10#
11# Configure:
12#  cmake -G Ninja ^
13#       -DCMAKE_INSTALL_PREFIX=../install ^
14#       -DDEFAULT_SYSROOT=<path-to-develop-arm-linux-root-fs> ^
15#       -DLLVM_AR=<llvm_obj_root>/bin/llvm-ar[.exe] ^
16#       -DCMAKE_CXX_FLAGS="-D__OPTIMIZE__" ^
17#       -DREMOTE_TEST_HOST="<hostname>" ^
18#       -DREMOTE_TEST_USER="<ssh_user_name>" ^
19#       -C<llvm_src_root>/llvm-project/clang/cmake/caches/CrossWinToARMLinux.cmake ^
20#       <llvm_src_root>/llvm-project/llvm
21# Build:
22#  cmake --build . --target install
23# Test:
24#  cmake --build . --target check-llvm
25#  cmake --build . --target check-clang
26#  cmake --build . --target check-lld
27
28if (NOT DEFINED DEFAULT_SYSROOT)
29  message(WARNING "DEFAULT_SYSROOT must be specified for the cross toolchain build.")
30endif()
31
32if (DEFINED LLVM_AR)
33  set(CMAKE_AR "${LLVM_AR}" CACHE STRING "")
34endif()
35
36if (NOT DEFINED LLVM_TARGETS_TO_BUILD)
37  set(LLVM_TARGETS_TO_BUILD "ARM" CACHE STRING "")
38endif()
39
40if (NOT DEFINED CMAKE_C_COMPILER_TARGET)
41  # Required if COMPILER_RT_DEFAULT_TARGET_ONLY is ON
42  set(CMAKE_C_COMPILER_TARGET "armv7-linux-gnueabihf" CACHE STRING "")
43endif()
44
45if (NOT DEFINED CMAKE_BUILD_TYPE)
46  set(CMAKE_BUILD_TYPE "Release" CACHE STRING "")
47endif()
48
49set(CMAKE_CROSSCOMPILING                    ON CACHE BOOL "")
50set(CMAKE_CL_SHOWINCLUDES_PREFIX            "Note: including file: " CACHE STRING "")
51
52set(LLVM_ENABLE_ASSERTIONS                  ON CACHE BOOL "")
53set(LLVM_ENABLE_PROJECTS                    "clang;clang-tools-extra;lld" CACHE STRING "")
54set(LLVM_ENABLE_RUNTIMES                    "compiler-rt;libunwind;libcxxabi;libcxx" CACHE STRING "")
55set(LLVM_DEFAULT_TARGET_TRIPLE              "${CMAKE_C_COMPILER_TARGET}" CACHE STRING "")
56set(LLVM_TARGET_ARCH                        "${CMAKE_C_COMPILER_TARGET}" CACHE STRING "")
57set(LLVM_LIT_ARGS                           "-vv ${LLVM_LIT_ARGS}" CACHE STRING "" FORCE)
58
59set(CLANG_DEFAULT_LINKER                    "lld" CACHE STRING "")
60
61set(COMPILER_RT_BUILD_BUILTINS              ON CACHE BOOL "")
62set(COMPILER_RT_BUILD_SANITIZERS            OFF CACHE BOOL "")
63set(COMPILER_RT_BUILD_XRAY                  OFF CACHE BOOL "")
64set(COMPILER_RT_BUILD_LIBFUZZER             OFF CACHE BOOL "")
65set(COMPILER_RT_BUILD_PROFILE               OFF CACHE BOOL "")
66set(COMPILER_RT_DEFAULT_TARGET_ONLY         ON CACHE BOOL "")
67
68set(LIBUNWIND_USE_COMPILER_RT               ON CACHE BOOL "")
69set(LIBUNWIND_TARGET_TRIPLE                 "${CMAKE_C_COMPILER_TARGET}" CACHE STRING "")
70set(LIBUNWIND_SYSROOT                       "${DEFAULT_SYSROOT}" CACHE STRING "")
71set(LIBUNWIND_ENABLE_SHARED                 OFF CACHE BOOL "")
72
73set(LIBCXXABI_USE_LLVM_UNWINDER             ON CACHE BOOL "")
74set(LIBCXXABI_ENABLE_STATIC_UNWINDER        ON CACHE BOOL "")
75set(LIBCXXABI_USE_COMPILER_RT               ON CACHE BOOL "")
76set(LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS OFF CACHE BOOL "")
77set(LIBCXXABI_TARGET_TRIPLE                 "${CMAKE_C_COMPILER_TARGET}" CACHE STRING "")
78set(LIBCXXABI_SYSROOT                       "${DEFAULT_SYSROOT}" CACHE STRING "")
79set(LIBCXXABI_LINK_TESTS_WITH_SHARED_LIBCXXABI OFF CACHE BOOL "")
80set(LIBCXXABI_LINK_TESTS_WITH_SHARED_LIBCXX    OFF CACHE BOOL "")
81
82set(LIBCXX_USE_COMPILER_RT                  ON CACHE BOOL "")
83set(LIBCXX_TARGET_TRIPLE                    "${CMAKE_C_COMPILER_TARGET}" CACHE STRING "")
84set(LIBCXX_SYSROOT                          "${DEFAULT_SYSROOT}" CACHE STRING "")
85set(LIBCXX_ENABLE_SHARED                    OFF CACHE BOOL "")
86
87set(BUILTINS_CMAKE_ARGS                     "-DCMAKE_SYSTEM_NAME=Linux;-DCMAKE_AR=${CMAKE_AR}" CACHE STRING "")
88set(RUNTIMES_CMAKE_ARGS                     "-DCMAKE_SYSTEM_NAME=Linux;-DCMAKE_AR=${CMAKE_AR}" CACHE STRING "")
89
90# Remote test configuration.
91if(DEFINED REMOTE_TEST_HOST)
92  set(DEFAULT_TEST_EXECUTOR                 "SSHExecutor('${REMOTE_TEST_HOST}', '${REMOTE_TEST_USER}')")
93  set(DEFAULT_TEST_TARGET_INFO              "libcxx.test.target_info.LinuxLocalTI")
94
95  # Allow override with the custom values.
96  if(NOT DEFINED LIBUNWIND_TARGET_INFO)
97    set(LIBUNWIND_TARGET_INFO               "${DEFAULT_TEST_TARGET_INFO}" CACHE STRING "")
98  endif()
99  if(NOT DEFINED LIBUNWIND_EXECUTOR)
100    set(LIBUNWIND_EXECUTOR                  "${DEFAULT_TEST_EXECUTOR}" CACHE STRING "")
101  endif()
102  if(NOT DEFINED LIBCXXABI_TARGET_INFO)
103    set(LIBCXXABI_TARGET_INFO               "${DEFAULT_TEST_TARGET_INFO}" CACHE STRING "")
104  endif()
105  if(NOT DEFINED LIBCXXABI_EXECUTOR)
106    set(LIBCXXABI_EXECUTOR                  "${DEFAULT_TEST_EXECUTOR}" CACHE STRING "")
107  endif()
108  if(NOT DEFINED LIBCXX_TARGET_INFO)
109    set(LIBCXX_TARGET_INFO                  "${DEFAULT_TEST_TARGET_INFO}" CACHE STRING "")
110  endif()
111  if(NOT DEFINED LIBCXX_EXECUTOR)
112    set(LIBCXX_EXECUTOR                     "${DEFAULT_TEST_EXECUTOR}" CACHE STRING "")
113  endif()
114endif()
115
116set(LLVM_INSTALL_TOOLCHAIN_ONLY             ON CACHE BOOL "")
117set(LLVM_TOOLCHAIN_TOOLS
118  llvm-ar
119  llvm-cov
120  llvm-cxxfilt
121  llvm-dwarfdump
122  llvm-lib
123  llvm-nm
124  llvm-objdump
125  llvm-profdata
126  llvm-ranlib
127  llvm-readobj
128  llvm-size
129  llvm-symbolizer
130  CACHE STRING "")
131
132set(LLVM_DISTRIBUTION_COMPONENTS
133  clang
134  lld
135  LTO
136  clang-format
137  builtins
138  runtimes
139  ${LLVM_TOOLCHAIN_TOOLS}
140  CACHE STRING "")
141