derek.holloway
7502bf64a4
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38 lines
1.2 KiB
CMake
38 lines
1.2 KiB
CMake
# CMake module for finding libpfm4.
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#
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# If successful, the following variables will be defined:
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# HAVE_LIBPFM
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#
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# Libpfm can be disabled by setting LLVM_ENABLE_LIBPFM to 0.
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include(CheckIncludeFile)
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include(CheckLibraryExists)
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include(CheckCXXSourceCompiles)
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if (LLVM_ENABLE_LIBPFM)
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check_library_exists(pfm pfm_initialize "" HAVE_LIBPFM_INITIALIZE)
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if(HAVE_LIBPFM_INITIALIZE)
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check_include_file(perfmon/perf_event.h HAVE_PERFMON_PERF_EVENT_H)
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check_include_file(perfmon/pfmlib.h HAVE_PERFMON_PFMLIB_H)
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check_include_file(perfmon/pfmlib_perf_event.h HAVE_PERFMON_PFMLIB_PERF_EVENT_H)
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if(HAVE_PERFMON_PERF_EVENT_H AND HAVE_PERFMON_PFMLIB_H AND HAVE_PERFMON_PFMLIB_PERF_EVENT_H)
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set(HAVE_LIBPFM 1)
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# Check to see if perf_branch_entry has the field 'cycles'.
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# We couldn't use CheckStructHasMember here because 'cycles' is a bit field which is not
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# supported by CheckStructHasMember.
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CHECK_CXX_SOURCE_COMPILES("
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#include <perfmon/perf_event.h>
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int main() {
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perf_branch_entry entry;
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entry.cycles = 2;
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return 0;
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}" COMPILE_WITH_CYCLES)
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if(COMPILE_WITH_CYCLES)
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set(LIBPFM_HAS_FIELD_CYCLES 1)
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endif()
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endif()
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endif()
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endif()
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