917ada35cd
This patch always defines the cxx_shared, cxx_static & other top-level targets. However, they are marked as EXCLUDE_FROM_ALL when we don't want to build them. Simply declaring the targets should be of no harm, and it allows other projects to mention these targets regardless of whether they end up being built or not. This patch basically moves the definition of e.g. cxx_shared out of the `if (LIBCXX_ENABLE_SHARED)` and instead marks it as EXCLUDE_FROM_ALL conditionally on whether LIBCXX_ENABLE_SHARED is passed. It then does the same for libunwind and libc++abi targets. I purposefully avoided to reformat the files (which now has inconsistent indentation) because I wanted to keep the diff minimal, and I know this is an area of the code where folks may have downstream diffs. I will re-indent the code separately once this patch lands. This is a reapplication of 79ee0342dbf0, which was reverted in a3539090884c because it broke the TSAN and the Fuchsia builds. Resolves #77654 Differential Revision: https://reviews.llvm.org/D134221
53 lines
2.7 KiB
CMake
53 lines
2.7 KiB
CMake
set(CMAKE_ASM_COMPILER_TARGET "armv7m-none-eabi" CACHE STRING "")
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set(CMAKE_CXX_COMPILER_TARGET "armv7m-none-eabi" CACHE STRING "")
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set(CMAKE_CXX_FLAGS "-mfloat-abi=soft" CACHE STRING "")
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set(CMAKE_C_COMPILER_TARGET "armv7m-none-eabi" CACHE STRING "")
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set(CMAKE_C_FLAGS "-mfloat-abi=soft" CACHE STRING "")
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set(CMAKE_SYSTEM_NAME Generic CACHE STRING "")
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set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY CACHE STRING "")
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set(COMPILER_RT_BAREMETAL_BUILD ON CACHE BOOL "")
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set(COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "")
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set(COMPILER_RT_BUILD_PROFILE OFF CACHE BOOL "")
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set(COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")
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set(COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")
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set(COMPILER_RT_DEFAULT_TARGET_ONLY ON CACHE BOOL "")
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set(LIBCXXABI_BAREMETAL ON CACHE BOOL "")
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set(LIBCXXABI_ENABLE_ASSERTIONS OFF CACHE BOOL "")
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set(LIBCXXABI_ENABLE_EXCEPTIONS ON CACHE BOOL "")
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set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
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set(LIBCXXABI_ENABLE_STATIC ON CACHE BOOL "")
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set(LIBCXXABI_ENABLE_STATIC_UNWINDER ON CACHE BOOL "")
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set(LIBCXXABI_ENABLE_THREADS OFF CACHE BOOL "")
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set(LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
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set(LIBCXX_ENABLE_EXCEPTIONS ON CACHE BOOL "")
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set(LIBCXX_ENABLE_FILESYSTEM OFF CACHE STRING "")
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set(LIBCXX_ENABLE_MONOTONIC_CLOCK OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_RANDOM_DEVICE OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_RTTI ON CACHE BOOL "")
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set(LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_STATIC ON CACHE BOOL "")
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set(LIBCXX_ENABLE_THREADS OFF CACHE BOOL "")
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set(LIBCXX_ENABLE_WIDE_CHARACTERS OFF CACHE BOOL "")
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set(LIBCXX_INCLUDE_BENCHMARKS OFF CACHE BOOL "")
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# Long tests are prohibitively slow when run via emulation.
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set(LIBCXX_TEST_PARAMS "long_tests=False" CACHE STRING "")
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set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
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set(LIBUNWIND_ENABLE_SHARED OFF CACHE BOOL "")
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set(LIBUNWIND_ENABLE_STATIC ON CACHE BOOL "")
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set(LIBUNWIND_ENABLE_THREADS OFF CACHE BOOL "")
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set(LIBUNWIND_IS_BAREMETAL ON CACHE BOOL "")
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set(LIBUNWIND_REMEMBER_HEAP_ALLOC ON CACHE BOOL "")
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set(LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
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find_program(QEMU_SYSTEM_ARM qemu-system-arm REQUIRED)
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# On embedded platforms that don't support shared library targets, CMake implicitly changes shared
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# library targets to be static library targets. This results in duplicate definitions of the static
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# library targets even though we might not ever build the shared library target, which breaks the
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# build. To work around this, we change the output name of the shared library target so that it
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# can't conflict with the static library target.
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#
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# This is tracked by https://gitlab.kitware.com/cmake/cmake/-/issues/25759.
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set(LIBCXX_SHARED_OUTPUT_NAME "c++-shared" CACHE STRING "")
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set(LIBCXXABI_SHARED_OUTPUT_NAME "c++abi-shared" CACHE STRING "")
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set(LIBUNWIND_SHARED_OUTPUT_NAME "unwind-shared" CACHE STRING "")
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