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https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-11 17:02:25 +00:00
Force libunwind usage (removes gcc_eh support)
libunwind is reentrant and signal safe, and works faster then then gcc_eh (plus it has some custom patches for problems that have been found during it's usage in ClickHouse). gcc_eh may be missing in the system (if gcc was not installed), and even if it exists clickhouse uses -nodefaultlibs, so some care should be made to make it work. Also this library is tiny and there shouln't be any problem to require it always (there is already tendency to require some contrib libraries, i.e. poco). Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
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@ -87,7 +87,6 @@ if (ENABLE_FUZZING)
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set (ENABLE_CLICKHOUSE_ODBC_BRIDGE OFF)
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set (ENABLE_LIBRARIES 0)
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set (ENABLE_SSL 1)
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set (USE_UNWIND ON)
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set (ENABLE_EMBEDDED_COMPILER 0)
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set (ENABLE_EXAMPLES 0)
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set (ENABLE_UTILS 0)
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@ -15,6 +15,7 @@ set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15)
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set(THREADS_PREFER_PTHREAD_FLAG ON)
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find_package(Threads REQUIRED)
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include (cmake/unwind.cmake)
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include (cmake/cxx.cmake)
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link_libraries(global-group)
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@ -40,7 +40,6 @@ if (CMAKE_CROSSCOMPILING)
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set (OPENSSL_NO_ASM ON CACHE INTERNAL "")
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set (ENABLE_JEMALLOC ON CACHE INTERNAL "")
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set (ENABLE_PARQUET OFF CACHE INTERNAL "")
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set (USE_UNWIND OFF CACHE INTERNAL "")
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set (ENABLE_GRPC OFF CACHE INTERNAL "")
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set (ENABLE_HDFS OFF CACHE INTERNAL "")
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set (ENABLE_MYSQL OFF CACHE INTERNAL "")
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@ -1,13 +1 @@
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option (USE_UNWIND "Enable libunwind (better stacktraces)" ${ENABLE_LIBRARIES})
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if (USE_UNWIND)
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add_subdirectory(contrib/libunwind-cmake)
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set (UNWIND_LIBRARIES unwind)
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set (EXCEPTION_HANDLING_LIBRARY ${UNWIND_LIBRARIES})
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message (STATUS "Using libunwind: ${UNWIND_LIBRARIES}")
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else ()
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set (EXCEPTION_HANDLING_LIBRARY gcc_eh)
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endif ()
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message (STATUS "Using exception handler: ${EXCEPTION_HANDLING_LIBRARY}")
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add_subdirectory(contrib/libunwind-cmake)
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@ -170,16 +170,13 @@ endif ()
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target_compile_definitions(_jemalloc PRIVATE -DJEMALLOC_PROF=1)
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if (USE_UNWIND)
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# jemalloc provides support for two different libunwind flavors: the original HP libunwind and the one coming with gcc / g++ / libstdc++.
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# The latter is identified by `JEMALLOC_PROF_LIBGCC` and uses `_Unwind_Backtrace` method instead of `unw_backtrace`.
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# At the time ClickHouse uses LLVM libunwind which follows libgcc's way of backtracing.
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# ClickHouse has to provide `unw_backtrace` method by the means of [commit 8e2b31e](https://github.com/ClickHouse/libunwind/commit/8e2b31e766dd502f6df74909e04a7dbdf5182eb1).
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target_compile_definitions (_jemalloc PRIVATE -DJEMALLOC_PROF_LIBGCC=1)
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target_link_libraries (_jemalloc PRIVATE unwind)
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endif ()
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# jemalloc provides support for two different libunwind flavors: the original HP libunwind and the one coming with gcc / g++ / libstdc++.
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# The latter is identified by `JEMALLOC_PROF_LIBGCC` and uses `_Unwind_Backtrace` method instead of `unw_backtrace`.
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# At the time ClickHouse uses LLVM libunwind which follows libgcc's way of backtracing.
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#
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# ClickHouse has to provide `unw_backtrace` method by the means of [commit 8e2b31e](https://github.com/ClickHouse/libunwind/commit/8e2b31e766dd502f6df74909e04a7dbdf5182eb1).
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target_compile_definitions (_jemalloc PRIVATE -DJEMALLOC_PROF_LIBGCC=1)
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target_link_libraries (_jemalloc PRIVATE unwind)
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# for RTLD_NEXT
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target_compile_options(_jemalloc PRIVATE -D_GNU_SOURCE)
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@ -61,9 +61,7 @@ target_include_directories(cxx SYSTEM BEFORE PUBLIC $<$<COMPILE_LANGUAGE:CXX>:$
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target_compile_definitions(cxx PRIVATE -D_LIBCPP_BUILDING_LIBRARY -DLIBCXX_BUILDING_LIBCXXABI)
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# Enable capturing stack traces for all exceptions.
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if (USE_UNWIND)
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target_compile_definitions(cxx PUBLIC -DSTD_EXCEPTION_HAS_STACK_TRACE=1)
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endif ()
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target_compile_definitions(cxx PUBLIC -DSTD_EXCEPTION_HAS_STACK_TRACE=1)
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if (USE_MUSL)
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target_compile_definitions(cxx PUBLIC -D_LIBCPP_HAS_MUSL_LIBC=1)
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@ -35,12 +35,10 @@ target_include_directories(cxxabi SYSTEM BEFORE
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)
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target_compile_definitions(cxxabi PRIVATE -D_LIBCPP_BUILDING_LIBRARY)
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target_compile_options(cxxabi PRIVATE -nostdinc++ -fno-sanitize=undefined -Wno-macro-redefined) # If we don't disable UBSan, infinite recursion happens in dynamic_cast.
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target_link_libraries(cxxabi PUBLIC ${EXCEPTION_HANDLING_LIBRARY})
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target_link_libraries(cxxabi PUBLIC unwind)
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# Enable capturing stack traces for all exceptions.
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if (USE_UNWIND)
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target_compile_definitions(cxxabi PUBLIC -DSTD_EXCEPTION_HAS_STACK_TRACE=1)
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endif ()
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target_compile_definitions(cxxabi PUBLIC -DSTD_EXCEPTION_HAS_STACK_TRACE=1)
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install(
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TARGETS cxxabi
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@ -166,7 +166,6 @@ function run_cmake
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"-DENABLE_UTILS=0"
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"-DENABLE_EMBEDDED_COMPILER=0"
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"-DENABLE_THINLTO=0"
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"-DUSE_UNWIND=1"
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"-DENABLE_NURAFT=1"
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"-DENABLE_SIMDJSON=1"
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"-DENABLE_JEMALLOC=1"
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@ -23,7 +23,7 @@ sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)"
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``` bash
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cd ClickHouse
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mkdir build-riscv64
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CC=clang-16 CXX=clang++-16 cmake . -Bbuild-riscv64 -G Ninja -DCMAKE_TOOLCHAIN_FILE=cmake/linux/toolchain-riscv64.cmake -DGLIBC_COMPATIBILITY=OFF -DENABLE_LDAP=OFF -DOPENSSL_NO_ASM=ON -DENABLE_JEMALLOC=ON -DENABLE_PARQUET=OFF -DUSE_UNWIND=OFF -DENABLE_GRPC=OFF -DENABLE_HDFS=OFF -DENABLE_MYSQL=OFF
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CC=clang-16 CXX=clang++-16 cmake . -Bbuild-riscv64 -G Ninja -DCMAKE_TOOLCHAIN_FILE=cmake/linux/toolchain-riscv64.cmake -DGLIBC_COMPATIBILITY=OFF -DENABLE_LDAP=OFF -DOPENSSL_NO_ASM=ON -DENABLE_JEMALLOC=ON -DENABLE_PARQUET=OFF -DENABLE_GRPC=OFF -DENABLE_HDFS=OFF -DENABLE_MYSQL=OFF
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ninja -C build-riscv64
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```
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@ -1627,7 +1627,7 @@ try
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/// Init trace collector only after trace_log system table was created
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/// Disable it if we collect test coverage information, because it will work extremely slow.
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#if USE_UNWIND && !WITH_COVERAGE
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#if !WITH_COVERAGE
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/// Profilers cannot work reliably with any other libunwind or without PHDR cache.
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if (hasPHDRCache())
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{
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@ -1650,10 +1650,6 @@ try
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/// Describe multiple reasons when query profiler cannot work.
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#if !USE_UNWIND
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LOG_INFO(log, "Query Profiler and TraceCollector are disabled because they cannot work without bundled unwind (stack unwinding) library.");
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#endif
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#if WITH_COVERAGE
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LOG_INFO(log, "Query Profiler and TraceCollector are disabled because they work extremely slow with test coverage.");
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#endif
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@ -91,7 +91,7 @@ namespace ErrorCodes
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extern const int NOT_IMPLEMENTED;
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}
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#if USE_UNWIND
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#ifndef __APPLE__
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Timer::Timer()
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: log(&Poco::Logger::get("Timer"))
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{}
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@ -209,13 +209,13 @@ QueryProfilerBase<ProfilerImpl>::QueryProfilerBase(UInt64 thread_id, int clock_t
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UNUSED(pause_signal);
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throw Exception(ErrorCodes::NOT_IMPLEMENTED, "QueryProfiler disabled because they cannot work under sanitizers");
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#elif !USE_UNWIND
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#elif defined(__APPLE__)
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UNUSED(thread_id);
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UNUSED(clock_type);
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UNUSED(period);
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UNUSED(pause_signal);
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throw Exception(ErrorCodes::NOT_IMPLEMENTED, "QueryProfiler cannot work with stock libunwind");
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throw Exception(ErrorCodes::NOT_IMPLEMENTED, "QueryProfiler cannot work on OSX");
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#else
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/// Sanity check.
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if (!hasPHDRCache())
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@ -264,7 +264,7 @@ QueryProfilerBase<ProfilerImpl>::~QueryProfilerBase()
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template <typename ProfilerImpl>
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void QueryProfilerBase<ProfilerImpl>::cleanup()
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{
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#if USE_UNWIND
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#ifndef __APPLE__
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timer.stop();
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signal_handler_disarmed = true;
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#endif
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@ -28,7 +28,7 @@ namespace DB
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* Note that signal handler implementation is defined by template parameter. See QueryProfilerReal and QueryProfilerCPU.
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*/
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#if USE_UNWIND
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#ifndef __APPLE__
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class Timer
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{
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public:
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@ -60,7 +60,7 @@ private:
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Poco::Logger * log;
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#if USE_UNWIND
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#ifndef __APPLE__
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inline static thread_local Timer timer = Timer();
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#endif
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#include <sstream>
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#include <unordered_map>
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#include <fmt/format.h>
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#include <libunwind.h>
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#include "config.h"
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#if USE_UNWIND
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# include <libunwind.h>
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#endif
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namespace
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{
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/// Currently this variable is set up once on server startup.
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@ -287,12 +284,8 @@ StackTrace::StackTrace(const ucontext_t & signal_context)
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void StackTrace::tryCapture()
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{
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#if USE_UNWIND
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size = unw_backtrace(frame_pointers.data(), capacity);
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__msan_unpoison(frame_pointers.data(), size * sizeof(frame_pointers[0]));
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#else
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size = 0;
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#endif
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}
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/// ClickHouse uses bundled libc++ so type names will be the same on every system thus it's safe to hardcode them
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@ -9,7 +9,6 @@
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#cmakedefine01 USE_AWS_S3
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#cmakedefine01 USE_AZURE_BLOB_STORAGE
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#cmakedefine01 USE_BROTLI
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#cmakedefine01 USE_UNWIND
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#cmakedefine01 USE_CASSANDRA
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#cmakedefine01 USE_SENTRY
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#cmakedefine01 USE_GRPC
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@ -23,7 +23,6 @@ const char * auto_config_build[]
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"USE_EMBEDDED_COMPILER", "@USE_EMBEDDED_COMPILER@",
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"USE_GLIBC_COMPATIBILITY", "@GLIBC_COMPATIBILITY@",
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"USE_JEMALLOC", "@ENABLE_JEMALLOC@",
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"USE_UNWIND", "@USE_UNWIND@",
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"USE_ICU", "@USE_ICU@",
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"USE_H3", "@USE_H3@",
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"USE_MYSQL", "@USE_MYSQL@",
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