runtime/CMakeLists.txt

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CMake
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cmake_minimum_required(VERSION 3.17.0)
# Start Project
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project(runtime)
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# Headers
add_library(trampoline-headers INTERFACE)
target_include_directories(trampoline-headers INTERFACE include)
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# Build
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if(NOT TRAMPOLINE_HEADERS_ONLY)
# Check Architecture
include(CheckSymbolExists)
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check_symbol_exists("__arm__" "" NO_RUNTIME_NEEDED)
if(NOT NO_RUNTIME_NEEDED)
check_symbol_exists("__aarch64__" "" USE_NATIVE_RUNTIME)
check_symbol_exists("__x86_64__" "" USE_QEMU_RUNTIME)
# Include Correct Sub-Project
set(RUNTIME_RPATH "$ORIGIN/../lib/native")
set(RUNTIME_EXTRA_LINK_FLAG "--disable-new-dtags")
target_compile_definitions(trampoline-headers INTERFACE MCPI_BUILD_RUNTIME)
if(USE_NATIVE_RUNTIME)
add_subdirectory(native)
elseif(USE_QEMU_RUNTIME)
add_subdirectory(qemu)
target_compile_definitions(trampoline-headers INTERFACE MCPI_RUNTIME_IS_QEMU)
else()
message(FATAL_ERROR "Unsupported Architecture")
endif()
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endif()
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else()
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# No-Op Install Function
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function(install_runtime)
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endfunction()
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endif()