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1cmake_minimum_required(VERSION 3.20.0)2include(CheckCXXCompilerFlag)3include(CheckIncludeFiles)4include(GNUInstallDirs)5 6set(CMAKE_CXX_EXTENSIONS OFF)7set(CMAKE_CXX_STANDARD 17)8 9project(libbolt_rt_project)10 11check_include_files(elf.h HAVE_ELF_H)12configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in13 ${CMAKE_CURRENT_BINARY_DIR}/config.h)14 15add_library(bolt_rt_instr STATIC16 instr.cpp17 ${CMAKE_CURRENT_BINARY_DIR}/config.h18 )19set_target_properties(bolt_rt_instr PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "lib${LLVM_LIBDIR_SUFFIX}")20add_library(bolt_rt_hugify STATIC21 hugify.cpp22 ${CMAKE_CURRENT_BINARY_DIR}/config.h23 )24set_target_properties(bolt_rt_hugify PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "lib${LLVM_LIBDIR_SUFFIX}")25 26if(NOT BOLT_BUILT_STANDALONE)27 add_custom_command(TARGET bolt_rt_instr POST_BUILD28 COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/libbolt_rt_instr.a" "${LLVM_LIBRARY_DIR}")29 add_custom_command(TARGET bolt_rt_hugify POST_BUILD30 COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/libbolt_rt_hugify.a" "${LLVM_LIBRARY_DIR}")31endif()32 33set(BOLT_RT_FLAGS34 -ffreestanding35 -fno-exceptions36 -fno-rtti37 -fno-stack-protector38 -fPIC39 # Runtime currently assumes omitted frame pointers for functions marked __attribute((naked)).40 # Protect against distros adding -fno-omit-frame-pointer and compiling with GCC.41 # Refs: llvm/llvm-project#148595 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7788242 -fomit-frame-pointer43)44if (CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")45 set(BOLT_RT_FLAGS ${BOLT_RT_FLAGS} 46 -mno-sse 47 -mgeneral-regs-only)48endif()49if (CMAKE_SYSTEM_PROCESSOR MATCHES "riscv64")50 set(BOLT_RT_FLAGS ${BOLT_RT_FLAGS})51endif()52if (CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")53 check_cxx_compiler_flag("-mno-outline-atomics" CXX_SUPPORTS_OUTLINE_ATOMICS)54 if (CXX_SUPPORTS_OUTLINE_ATOMICS)55 set(BOLT_RT_FLAGS ${BOLT_RT_FLAGS} 56 -mno-outline-atomics 57 -mgeneral-regs-only)58 endif()59endif()60 61# Don't let the compiler think it can create calls to standard libs62target_compile_options(bolt_rt_instr PRIVATE ${BOLT_RT_FLAGS})63target_include_directories(bolt_rt_instr PRIVATE ${CMAKE_CURRENT_BINARY_DIR})64target_compile_options(bolt_rt_hugify PRIVATE ${BOLT_RT_FLAGS})65target_include_directories(bolt_rt_hugify PRIVATE ${CMAKE_CURRENT_BINARY_DIR})66 67install(TARGETS bolt_rt_instr DESTINATION "lib${LLVM_LIBDIR_SUFFIX}")68install(TARGETS bolt_rt_hugify DESTINATION "lib${LLVM_LIBDIR_SUFFIX}")69 70if (CMAKE_CXX_COMPILER_ID MATCHES ".*Clang.*" AND CMAKE_SYSTEM_NAME STREQUAL "Darwin")71 add_library(bolt_rt_instr_osx STATIC72 instr.cpp73 ${CMAKE_CURRENT_BINARY_DIR}/config.h74 )75 set_target_properties(bolt_rt_instr_osx PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "lib${LLVM_LIBDIR_SUFFIX}")76 target_include_directories(bolt_rt_instr_osx PRIVATE ${CMAKE_CURRENT_BINARY_DIR})77 target_compile_options(bolt_rt_instr_osx PRIVATE78 -target x86_64-apple-darwin19.6.079 ${BOLT_RT_FLAGS})80 install(TARGETS bolt_rt_instr_osx DESTINATION "lib${LLVM_LIBDIR_SUFFIX}")81 82 if(NOT BOLT_BUILT_STANDALONE)83 add_custom_command(TARGET bolt_rt_instr_osx POST_BUILD84 COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/libbolt_rt_instr_osx.a" "${LLVM_LIBRARY_DIR}")85 endif()86endif()87