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373b91c50d
`unw_init_local_signal` is provided as: - `_ULx86_64_init_local_signal` in `libunwind` - `_Ux86_64_init_local_signal` in `libunwind-generic` `find_library (UNWIND_LIBRARY unwind)` looks for the first library; `#define UNW_LOCAL_ONLY` before `#include <libunwind.h>` is necessary to select this variant.
44 lines
1.5 KiB
CMake
44 lines
1.5 KiB
CMake
if (CMAKE_SYSTEM MATCHES "Linux")
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option (USE_INTERNAL_UNWIND_LIBRARY "Set to FALSE to use system unwind library instead of bundled" ${NOT_UNBUNDLED})
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else ()
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option (USE_INTERNAL_UNWIND_LIBRARY "Set to FALSE to use system unwind library instead of bundled" OFF)
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endif ()
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if (NOT USE_INTERNAL_UNWIND_LIBRARY)
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find_library (UNWIND_LIBRARY unwind)
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find_path (UNWIND_INCLUDE_DIR NAMES unwind.h PATHS ${UNWIND_INCLUDE_PATHS})
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include (CheckCXXSourceCompiles)
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set(CMAKE_REQUIRED_INCLUDES ${UNWIND_INCLUDE_DIR})
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set(CMAKE_REQUIRED_LIBRARIES ${UNWIND_LIBRARY})
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check_cxx_source_compiles("
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#include <ucontext.h>
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#define UNW_LOCAL_ONLY
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#include <libunwind.h>
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int main () {
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ucontext_t context;
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unw_cursor_t cursor;
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unw_init_local_signal(&cursor, &context);
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return 0;
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}
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" HAVE_UNWIND_INIT_LOCAL_SIGNAL)
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if (NOT HAVE_UNWIND_INIT_LOCAL_SIGNAL)
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set(UNWIND_LIBRARY "")
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set(UNWIND_INCLUDE_DIR "")
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endif ()
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endif ()
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if (UNWIND_LIBRARY AND UNWIND_INCLUDE_DIR)
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#include_directories (${UNWIND_INCLUDE_DIR})
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set (USE_UNWIND 1)
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elseif (CMAKE_SYSTEM MATCHES "Linux")
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set (USE_INTERNAL_UNWIND_LIBRARY 1)
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set (UNWIND_INCLUDE_DIR "${ClickHouse_SOURCE_DIR}/contrib/libunwind/include")
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#include_directories (BEFORE ${UNWIND_INCLUDE_DIR})
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set (UNWIND_LIBRARY unwind)
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set (USE_UNWIND 1)
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endif ()
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message (STATUS "Using unwind=${USE_UNWIND}: ${UNWIND_INCLUDE_DIR} : ${UNWIND_LIBRARY}")
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