CMakeLists.txt

project(Android-Emulator)
cmake_minimum_required(VERSION 3.5)
message("Android target tag: ${ANDROID_TARGET_TAG}")

if(NOT DEFINED ANDROID_TARGET_TAG)
  message(
    WARNING
      "You need to invoke the cmake generator with a proper toolchain from android/build/cmake, "
      "It is best to invoke: android/scripts/rebuild. "
      "Using the system toolchain might have unintended consequences, and you will need all required "
      "packages to build qemu (https://wiki.qemu.org/Hosts/Linux,https://wiki.qemu.org/Hosts/Mac)."
  )
  list(APPEND CMAKE_MODULE_PATH
       "${CMAKE_CURRENT_LIST_DIR}/android/build/cmake/")
  include(toolchain)
  _get_host_tag(TAG)
  toolchain_configure_tags(${TAG})
endif()

message(
  STATUS
    "Configured host ${ANDROID_HOST_TAG} to target: ${ANDROID_TARGET_TAG}, target os: ${ANDROID_TARGET_OS}/${ANDROID_TARGET_OS_FLAVOR}"
)

include(android)
include(prebuilts)

set(OPTION_CRASHUPLOAD "NONE" CACHE STRING "Destination of crash reports.")
set(OPTION_SDK_TOOLS_REVISION "" CACHE STRING
                                       "The tools revision to use, if any")
set(OPTION_SDK_TOOLS_BUILD_NUMBER ""
    CACHE STRING "The sdk buildnumber to use, if any.")
set(OPTION_ASAN "" CACHE STRING "The list of build sanitizers to user")
set(OPTION_COVERAGE_IN_DEBUG TRUE
    CACHE BOOL "True if code coverage should be enabled in debug builds.")
set(OPTION_ASAN_IN_DEBUG TRUE
    CACHE BOOL "True if asan should be turned on for debug builds.")
set(OPTION_TIME_INFO FALSE
    CACHE BOOL "True if you wish to collect compile time statistics")
set(OPTION_CLANG_TIDY
    ""
    CACHE
      STRING
      "List of targets for which you wish to run clang-tidy for code analysis.")
set(OPTION_CLANG_TIDY_FIX FALSE
    CACHE BOOL "True if you wish clang-tidy to auto fix issues it encounters.")
set(QTWEBENGINE FALSE CACHE BOOL "True if the webengine should be enabled.")
if(LINUX_X86_64)
  set(WEBRTC
      TRUE
      CACHE
        BOOL
        "True if the emulator should be build with WEBRTC support. Defaults on for Linux"
  )
else()
  set(WEBRTC
      FALSE
      CACHE
        BOOL
        "True if the emulator should be build with WEBRTC support. Defaults on for Linux"
  )
endif()
set(QEMU_UPSTREAM TRUE
    CACHE BOOL "True if the upstream version of qemu should be build.")
set(ANDROIDSTUDIO FALSE
    CACHE BOOL "Deprecated. Android studio is using the gRPC interface directly.")
set(OPTION_MINBUILD
    FALSE
    CACHE
      BOOL
      "True if we should build a minimum set of components to support 64-bit guets only."
)
set(OPTION_TCMALLOC
    TRUE
    CACHE
      BOOL
      "True if we should use TCMalloc on its supported platforms (currently, linux)."
)
set(OPTION_GFXSTREAM_BACKEND FALSE
    CACHE BOOL "True if we should build the gfxstream backend (plus everything else).")

set(GFXSTREAM FALSE
    CACHE BOOL "True if we should build gfxstream, crosvm, and its accompanying libraries/tests.")

set(OPTION_AEMU_LIBS_ONLY FALSE
    CACHE BOOL "True if we should build only AEMU libraries and their tests.")

set(CROSVM FALSE
    CACHE BOOL "True if we should build crosvm (also builds gfxstream)")

set(GFXSTREAM_ONLY FALSE
    CACHE BOOL "True if we should build only gfxstream")

if (GFXSTREAM_ONLY)
    set(CROSVM FALSE)
    set(GFXSTREAM TRUE)
endif()

if (LINUX_AARCH64)
    set(OPTION_MINBUILD TRUE)
    set(QTWEBENGINE FALSE)
    set(QEMU_UPSTREAM FALSE)
    set(WEBRTC FALSE)
endif()

if (CROSVM OR GFXSTREAM)
    set(OPTION_AEMU_LIBS_ONLY TRUE)
    set(OPTION_GFXSTREAM_BACKEND TRUE)
    set(OPTION_TCMALLOC FALSE)
    set(WEBRTC FALSE)
    set(ANDROIDSTUDIO FALSE)
endif()

string(STRIP "${OPTION_SDK_TOOLS_BUILD_NUMBER}" OPTION_SDK_TOOLS_BUILD_NUMBER)
string(STRIP "${OPTION_SDK_TOOLS_REVISION}" OPTION_SDK_TOOLS_REVISION)

set_property(CACHE OPTION_CRASHUPLOAD PROPERTY STRINGS NONE STAGING PROD)
  set(DBG_INFO ${CMAKE_BINARY_DIR}/build/debug_info)

# Symbol extraction is not supported when cross compiling.
if(OPTION_CRASHUPLOAD STREQUAL "NONE")
  set(ANDROID_EXTRACT_SYMBOLS FALSE)
else()
  set(ANDROID_EXTRACT_SYMBOLS TRUE)
  set(ANDROID_SYMBOL_DIR ${DBG_INFO})
  file(MAKE_DIRECTORY ${ANDROID_SYMBOL_DIR})
  message(STATUS "Uploading symbols to ${OPTION_CRASHUPLOAD}")
endif()

if(ANDROID_EXTRACT_SYMBOLS AND CROSSCOMPILE)
  message(
    WARNING
      "Symbol extraction not supported when cross compiling from ${ANDROID_HOST_TAG} -> ${ANDROID_TARGET_TAG}, disabling."
  )
  set(ANDROID_EXTRACT_SYMBOLS FALSE)
endif()

# Make sure targets have complete control of include order.
set(CMAKE_INCLUDE_CURRENT_DIR OFF)

# Enable C++17 in C++
# (Note, cmake does not set the proper flags when using CXX_STANDARD) with our
# custom clang.
add_cxx_flag("-std=c++17")

# Gather compile time statistics
if(OPTION_TIME_INFO)
  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CMAKE_COMMAND} -E time")
  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "${CMAKE_COMMAND} -E time")
endif()

set(CMAKE_POSITION_INDEPENDENT_CODE ON)

# Let's bin place everything in the root, with the shared libs in the right
# place
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib64)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/archives)
set(CMAKE_PDB_OUTPUT_DIRECTORY ${DBG_INFO})
# Feeling courageous? Set this to $ANDROID_SDK_ROOT
set(CMAKE_INSTALL_PREFIX ${CMAKE_BINARY_DIR}/distribution/emulator)

# Pthreads from the prebuilts please!
set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
set(THREADS_PREFER_PTHREAD_FLAG TRUE)
prebuilt(Threads)

# Configure OS depdendency licensenses
if (LINUX_AARCH64)
      message("Cross build aarch64 libstdc++")
      android_license(
        TARGET "RUNTIME_OS_DEPENDENCIES"
        LIBNAME "libstdc++"
        URL "https://packages.debian.org/sid/crossbuild-essential-arm64"
        SPDX "LLVM-exception"
        LICENSE
          "https://android.googlesource.com/toolchain/clang/+/refs/heads/master/LICENSE.TXT"
        LOCAL "${ANDROID_QEMU2_TOP_DIR}/LICENSES/LICENSE.LLVM")
elseif(LINUX_X86_64)
      android_license(
        TARGET "RUNTIME_OS_DEPENDENCIES"
        LIBNAME "libc++"
        URL "https://android.googlesource.com/toolchain/clang/+/refs/heads/master/"
        SPDX "LLVM-exception"
        LICENSE
          "https://android.googlesource.com/toolchain/clang/+/refs/heads/master/LICENSE.TXT"
        LOCAL "${ANDROID_QEMU2_TOP_DIR}/LICENSES/LICENSE.LLVM")
else()
  android_license(TARGET "RUNTIME_OS_DEPENDENCIES" LIBNAME None SPDX None
                  LICENSE None LOCAL None)
endif()

if(CMAKE_BUILD_TYPE STREQUAL "Debug")
  add_definitions("-DANDROID_DEBUG")
  add_c_flag("-O0 -g3")

  if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT CROSSCOMPILE)
    if(NOT OPTION_ASAN AND OPTION_ASAN_IN_DEBUG)
      set(OPTION_ASAN address)
    endif()

    if(OPTION_ASAN STREQUAL "thread" AND OPTION_COVERAGE_IN_DEBUG)
      message(FATAL_ERROR "You cannot run tsan with code coverage enabled.")
    endif()
    if(NOT WINDOWS_MSVC_X86_64 AND OPTION_COVERAGE_IN_DEBUG)
      message("Enabling code coverage")
      # Build an instrumented version of the code  that generates coverage
      # mapping to enable code coverage analysis
      set(ANDROID_CODE_COVERAGE TRUE)
      add_c_flag("-fcoverage-mapping")
      add_c_flag("-fprofile-instr-generate")
      add_c_flag("-fprofile-arcs")
      add_c_flag("-ftest-coverage")
      add_c_flag("--coverage")
    endif()
  endif()
else()
  set(CMAKE_INSTALL_DO_STRIP TRUE)
  add_definitions("-DNDEBUG=1")
  if(WINDOWS_MSVC_X86_64)
    # clang-cl takes msvc based parameters, so -O3 is a nop
    add_c_flag("-O2")
  else()
    add_c_flag("-O3 -g3")
  endif()
endif()

# Target specific configurations that we do not want to do in the
# toolchain.cmake Toolchain variables seem to be overwritten pending your cmake
# version.
if(LINUX_X86_64)
  add_c_flag("-Werror")
  add_c_flag("-Wno-deprecated-declarations") # Protobuf generates deprecation warnings for deprecated enums
  # And the asm type if we are compiling with yasm
  set(ANDROID_NASM_TYPE elf64)
  # This should make sure we have sufficient information left to properly print std::string etc.
  # see b/156534499 for details.
  add_c_flag("-fno-limit-debug-info")
elseif(LINUX_AARCH64)
  set(ANDROID_NASM_TYPE elf64)
elseif(WINDOWS_MSVC_X86_64)
  # And the asm type if we are compiling with yasm
  set(ANDROID_NASM_TYPE win64)
  set(CMAKE_SHARED_LIBRARY_PREFIX "lib")
elseif(DARWIN_X86_64)
  # And the asm type if we are compiling with yasm
  set(ANDROID_NASM_TYPE macho64)
  # Always consider the source to be darwin.
  add_definitions(-D_DARWIN_C_SOURCE=1)
  add_c_flag("-Wno-everything")
else()
  message(FATAL_ERROR "Unknown target!")
endif()

# Note that clang in windows act as a drop in replacement for cl
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
  add_definitions("-D__STDC_CONSTANT_MACROS" "-D_LIBCPP_VERSION=__GLIBCPP__")

  # If macro expansion goes wrong, we like to see why
  add_c_flag("-fmacro-backtrace-limit=0")

  # Let's not trip over warnings & errors that do not exist on every platform
  # clang-cl != clang-lin != clang-darwin
  add_c_flag("-Wno-unknown-warning-option")
  add_c_flag("-Wno-unknown-argument")
endif()

if(DARWIN_X86_64)
  add_c_flag("-Werror")
endif()

if(WINDOWS_MSVC_X86_64)
  add_c_flag("-MD")
  # b/141774858 to track turning them back on again.
  add_c_flag("-Wno-everything")
  add_definitions("-D_NO_EXCEPTIONS")

  if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
    # Disable security checks, "we know what we are doing"
    add_c_flag("-GS-")
    # Disable rtti, we are not going to be needing it, this is the msvc
    # equivalent of -fno-rtti
    add_c_flag("-GR-")

    # Link time optization tragically fails when cross compiling.
    if(NOT CROSSCOMPILE)
      # Do a global optimization pass (note, link times --> infinity)
      add_c_flag("-flto=thin")
      # Optimize a bit more on the vtables in use, note this requires -flto
      add_c_flag("-fwhole-program-vtables")
    endif()
  endif()
endif()

# Copy the source properties and add the build number to it, this will enable
# external tools to easily operate on version id.
set(SOURCE_PROP_DEST ${CMAKE_BINARY_DIR}/source.properties)
file(COPY ${ANDROID_QEMU2_TOP_DIR}/source.properties
     DESTINATION ${CMAKE_BINARY_DIR})
file(APPEND ${SOURCE_PROP_DEST} "Pkg.BuildId=${OPTION_SDK_TOOLS_BUILD_NUMBER}")
install(FILES ${SOURCE_PROP_DEST} DESTINATION . RENAME source.properties)

if(OPTION_CLANG_TIDY)
  set(DO_FIX "")
  if(OPTION_CLANG_TIDY_FIX)
    set(DO_FIX "--fix")
  endif()
  # Workaround to ignore generated code.
  file(WRITE "${PROJECT_BINARY_DIR}/.clang-tidy"
       "Checks: '-*,android-cloexec-accept'")
  set(DO_CLANG_TIDY "${CLANG_TIDY_EXE}" "${DO_FIX}")
endif()

add_c_flag("-g")
# Disable generation of information about every class with virtual functions for
# use by the C++ runtime type identification features (dynamic_cast and typeid).
# If you don't use those parts of the language, you can save some space by using
# this flag. Note that exception handling uses the same information, but it will
# generate it as needed. The  dynamic_cast operator can still be used for casts
# that do not require runtime type information, i.e. casts to void * or to
# unambiguous base classes.
if(NOT WINDOWS_MSVC_X86_64)
  add_cxx_flag("-fno-rtti")
endif()

# Compiling with -fno-exceptions disables exceptions support and uses the
# variant of C++ libraries without exceptions. Use of try, catch, or throw
# results in an error message. Linking objects that have been compiled with
# -fno- exceptions automatically selects the libraries without exceptions. You
# can use the linker option --no_exceptions to diagnose whether the objects
# being linked contain exceptions. If an exception propagates into a function
# that has been compiled without exceptions support, then the program
# terminates.
add_cxx_flag("-fno-exceptions")
add_cxx_flag("-Wno-invalid-offsetof")
add_cxx_flag("-Wno-implicit-int-float-conversion")

# Ensure that <inttypes.h> always defines all interesting macros.
add_definitions("-D__STDC_LIMIT_MACROS=1" "-D__STDC_FORMAT_MACROS=1")
# (From https://stackoverflow.com/questions/5582211/what-does-define-gnu-source-
# imply) with GNU_SOURCE, you will get:
#
# * access to lots of nonstandard GNU/Linux extension functions
# * access to traditional functions which were omitted from the POSIX standard
#   (often for good reason, such as being replaced with better alternatives, or
#   being tied to particular legacy implementations)
# * access to low-level functions that cannot be portable, but that you
#   sometimes need for implementing system utilities like mount, ifconfig, etc.
#   broken behavior for lots of POSIX-specified functions, where the GNU folks
#   disagreed with the standards committee on how the functions should behave
#   and decided to do their own thing. As long as you're aware of these things,
#   it should not be a problem to define _GNU_SOURCE, but you should avoid
#   defining it and instead define _POSIX_C_SOURCE=200809L or _XOPEN_SOURCE=700
#   when possible to ensure that your programs are portable.
add_definitions("-D_GNU_SOURCE=1")

# Enable large-file support (i.e. make off_t a 64-bit value).
add_definitions("-D_FILE_OFFSET_BITS=64" "-D_LARGEFILE_SOURCE")

if(OPTION_ASAN AND (LINUX_X86_64 OR DARWIN_X86_64))
  message(STATUS "Enabling ASAN with: ${OPTION_ASAN}")
  add_c_flag("-fsanitize=${OPTION_ASAN}")
  add_c_flag("-g3")
  if(OPTION_ASAN STREQUAL "address")
    add_c_flag("-fno-omit-frame-pointer")
  endif()
endif()

# Toolchain file can get loaded multiple times, resulting in this variable being
# overwritten on native windows.
if(MSVC AND WINDOWS_MSVC_X86_64)
  set(CMAKE_SHARED_LIBRARY_PREFIX "lib")
endif()

# We now have configured our base compiler..

# Unit tests please!
enable_testing()

# TODO(jansene): Make these prebuilts. Files on which the emulator (and some
# unit tests dependes). If a target takes a prebuilt_dependency on these, then
# they will be binplaced in  ${EXECUTABLE_DIRECTORY}/lib/...
set(EMULATOR_FEATURE_DEPENDENCIES
    "${ANDROID_QEMU2_TOP_DIR}/android/data/advancedFeatures.ini>lib/advancedFeatures.ini"
    "${ANDROID_QEMU2_TOP_DIR}/android/data/advancedFeaturesCanary.ini>lib/advancedFeaturesCanary.ini"
    "${ANDROID_QEMU2_TOP_DIR}/android/data/emu-original-feature-flags.protobuf>lib/emu-original-feature-flags.protobuf"
    "${ANDROID_QEMU2_TOP_DIR}/android/data/hostapd.conf>lib/hostapd.conf"
)

if(LINUX_AARCH64)
    set(ANDROID_TARGET_ARCH "aarch64")
else()
    set(ANDROID_TARGET_ARCH "x86_64")
endif()

set(SWIFTSHADER_DEPENDENCIES
    "${ANDROID_QEMU2_TOP_DIR}/../../prebuilts/android-emulator-build/common/swiftshader/${ANDROID_TARGET_OS_FLAVOR}-${ANDROID_TARGET_ARCH}/lib/libEGL${CMAKE_SHARED_LIBRARY_SUFFIX}>lib64/gles_swiftshader/libEGL${CMAKE_SHARED_LIBRARY_SUFFIX}"
    "${ANDROID_QEMU2_TOP_DIR}/../../prebuilts/android-emulator-build/common/swiftshader/${ANDROID_TARGET_OS_FLAVOR}-${ANDROID_TARGET_ARCH}/lib/libGLES_CM${CMAKE_SHARED_LIBRARY_SUFFIX}>lib64/gles_swiftshader/libGLES_CM${CMAKE_SHARED_LIBRARY_SUFFIX}"
    "${ANDROID_QEMU2_TOP_DIR}/../../prebuilts/android-emulator-build/common/swiftshader/${ANDROID_TARGET_OS_FLAVOR}-${ANDROID_TARGET_ARCH}/lib/libGLESv2${CMAKE_SHARED_LIBRARY_SUFFIX}>lib64/gles_swiftshader/libGLESv2${CMAKE_SHARED_LIBRARY_SUFFIX}"
)

android_license(
  TARGET SWIFTSHADER_DEPENDENCIES
  LIBNAME swiftshader
  EXECUTABLES
    "gles_swiftshader/libEGL${CMAKE_SHARED_LIBRARY_SUFFIX}"
    "gles_swiftshader/libGLES_CM${CMAKE_SHARED_LIBRARY_SUFFIX}"
    "gles_swiftshader/libGLESv2${CMAKE_SHARED_LIBRARY_SUFFIX}"
  URL "https://android.googlesource.com/platform/external/swiftshader/+/refs/heads/emu-master-dev"
  SPDX "Apache-2.0"
  LICENSE
    "https://android.googlesource.com/platform/external/swiftshader/+/refs/heads/emu-master-dev/LICENSE.txt"
  LOCAL "${ANDROID_QEMU2_TOP_DIR}/LICENSES/LICENSE.APACHE2")

if (NOT LINUX_AARCH64)
    # Angle shader translator (and possibly also vk renderer) dependencies
set(ANGLE_DEPENDENCIES
    "${ANDROID_QEMU2_TOP_DIR}/../../prebuilts/android-emulator-build/common/ANGLE/${ANDROID_TARGET_OS_FLAVOR}-${ANDROID_TARGET_ARCH}/lib/libshadertranslator${CMAKE_SHARED_LIBRARY_SUFFIX}>lib64/libshadertranslator${CMAKE_SHARED_LIBRARY_SUFFIX}")

android_license(
  TARGET ANGLE_DEPENDENCIES
  LIBNAME angle
  EXECUTABLES
    "libshadertranslator${CMAKE_SHARED_LIBRARY_SUFFIX}"
  URL "https://chromium.googlesource.com/angle/angle"
  SPDX "BSD-3-Clause"
  LICENSE "https://chromium.googlesource.com/angle/angle/LICENSE"
  LOCAL "${ANDROID_QEMU2_TOP_DIR}/LICENSES/LICENSE.ANGLE")

endif()

if(WINDOWS_MSVC_X86_64)
  set(ANGLE_RENDERER_DEPENDENCIES
      "${ANDROID_QEMU2_TOP_DIR}/../../prebuilts/android-emulator-build/common/ANGLE/windows-x86_64/lib/libEGL${CMAKE_SHARED_LIBRARY_SUFFIX}>lib64/gles_angle/libEGL${CMAKE_SHARED_LIBRARY_SUFFIX}"
      "${ANDROID_QEMU2_TOP_DIR}/../../prebuilts/android-emulator-build/common/ANGLE/windows-x86_64/lib/libGLESv2${CMAKE_SHARED_LIBRARY_SUFFIX}>lib64/gles_angle/libGLESv2${CMAKE_SHARED_LIBRARY_SUFFIX}"
      "${ANDROID_QEMU2_TOP_DIR}/../../prebuilts/android-emulator-build/common/ANGLE/windows-x86_64/lib/d3dcompiler_47${CMAKE_SHARED_LIBRARY_SUFFIX}>lib64/gles_angle/d3dcompiler_47${CMAKE_SHARED_LIBRARY_SUFFIX}"
  )

  # Angle executables licensing information.
  android_license(
    TARGET ANGLE_RENDERER_DEPENDENCIES
    LIBNAME angle-renderer
    EXECUTABLES
      "gles_angle/libEGL${CMAKE_SHARED_LIBRARY_SUFFIX}"
      "gles_angle/libGLESv2${CMAKE_SHARED_LIBRARY_SUFFIX}"
      "gles_angle/d3dcompiler_47${CMAKE_SHARED_LIBRARY_SUFFIX}"
    URL "https://chromium.googlesource.com/angle/angle"
    SPDX "BSD-3-Clause"
    LICENSE "https://chromium.googlesource.com/angle/angle/LICENSE"
    LOCAL "${ANDROID_QEMU2_TOP_DIR}/LICENSES/LICENSE.ANGLE")

endif()

prebuilt(GLIB2)
prebuilt(SDL2)
prebuilt(FDT)
prebuilt(PIXMAN)
prebuilt(VIRGLRENDERER)
prebuilt(TCMALLOC)

# Make sure the standard set of windows libraries are available as targets
if(WINDOWS)
  include(emu-windows-libs)
endif()

# There is no USB support on windows, so we will not try to resolve it.
if(NOT WINDOWS)
  prebuilt(USB)
endif()

# Get the versions from git (Note that both functions are doing pretty much the
# same)
get_git_version(ANDROID_QEMU_VERSION)
get_git_sha(ANDROID_QEMU_SHA)

# Generate the qemu-version header.
configure_file(qemu-version.h.in qemu-version.h @ONLY)

# We need the auto generated header for some components, so let's set the
# ANDROID_HW_CONFIG_H variable to point to the generated header. Those that need
# it can add it to their sources list, and it will be there.
android_generate_hw_config()

# Lets set up a qemu dependency that we all can rely on
android_add_interface(
  TARGET android-qemu-deps
  LICENSE "GPL-2.0-only"
  LIBNAME
    qemu
    URL
    "https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev"
  REPO "${ANDROID_QEMU2_TOP_DIR}"
  NOTICE "REPO/LICENSE")

# This defines all the include directories needed to compile the libqemu
# libraries. There should be no need to make additions here.
if (LINUX_AARCH64)
    set(TCG_ARCH_DIR "tcg/aarch64")
else()
    set(TCG_ARCH_DIR "tcg/i386")
endif()
target_include_directories(
  android-qemu-deps
  INTERFACE
    tcg
    ${TCG_ARCH_DIR}
    accel/tcg
    include
    disas/libvixl
    ${CMAKE_CURRENT_SOURCE_DIR}
    ${CMAKE_BINARY_DIR}
    qemu2-auto-generated
    ../../prebuilts/android-emulator-build/qemu-android-deps/${ANDROID_TARGET_TAG}/include
    android-qemu2-glue/config/${ANDROID_TARGET_TAG}/)

# These are the rules that every qemu component needs, regardless of the
# platform you are compiling on. Please document any flags you set as not
# everyone is a compiler expert!
target_compile_definitions(
  android-qemu-deps
  INTERFACE # Enable faster migration code when saving RAM to a snapshot
            "-DCONFIG_MIGRATION_RAM_SINGLE_ITERATION")
target_compile_definitions(android-qemu-deps INTERFACE # Enable VIRGL
                                                       "-DCONFIG_VIRGL")

target_compile_options(
  android-qemu-deps
  INTERFACE "-Werror=implicit-function-declaration"
            "-Wno-unused-function"
            "-Wno-address-of-packed-member"
            "-Wno-shift-negative-value"
            # Do not allow the compiler to assume the strictest aliasing rules
            # applicable to the language being compiled. For C (and C++), this
            # activates optimizations based on the type of expressions. In
            # particular, an object of one type is assumed never to reside at
            # the same address as an object of a different type, unless the
            # types are almost the same.  Supposedly this can introduce weird
            # failures esp. on older gcc versions (MINGW) (See
            # http://thiemonagel.de/2010/01/no-strict-aliasing/)
            "-fno-strict-aliasing")

# This option instructs the compiler to assume that signed arithmetic overflow
# of addition, subtraction and multiplication wraps around using twos-complement
# representation. This flag enables some optimizations and disables others. The
# options -ftrapv and -fwrapv override each other, so using -ftrapv -fwrapv on
# the command-line results in -fwrapv being effective. Qemu is using this, so we
# use it as well. "-fwrapv" The -fno- common option specifies that the compiler
# should instead place uninitialized global variables in the data section of the
# object file.  This inhibits the merging of tentative definitions by the linker
# so you get a multiple- definition error if the same variable is defined in
# more than one compilation unit.  Compiling with -fno- common is useful on
# targets for which it provides better performance, or if you wish to verify
# that the program will work on other systems that always treat uninitialized
# variable definitions this way.  Remove this and you'll get all sorts of fun
# linker issues.
target_compile_options(android-qemu-deps INTERFACE "-fno-common")

# Make sure we make our dependent libraries available.
target_link_libraries(android-qemu-deps INTERFACE GLIB2::GLIB2 PIXMAN::PIXMAN
                                                  zlib)

target_link_libraries(android-qemu-deps INTERFACE virglrenderer-headers)

# We only support usb on mac/lin
android_target_link_libraries(android-qemu-deps darwin-x86_64 INTERFACE
                              USB::USB)
android_target_link_libraries(android-qemu-deps linux-x86_64 INTERFACE USB::USB)

# Now we add the normal android libs, so we can use them
add_subdirectory(android)
add_subdirectory(android-qemu2-glue)

set(ANDROID_QEMU_ARM_DEVICES "hw/pci/goldfish_address_space.c")
set(ANDROID_QEMU_COMMON_DEVICES "${ANDROID_QEMU_ARM_DEVICES};hw/i386/pc_piix.c")

# Darwin definitions
set(ANDROID_QEMU_i386_DEVICES_darwin-x86_64
    "hw/i386/acpi-build.c;${ANDROID_QEMU_COMMON_DEVICES}")
set(ANDROID_QEMU_arm_DEVICES_darwin-x86_64
    "hvf-stub.c;accel/stubs/hax-stub.c;${ANDROID_QEMU_ARM_DEVICES}")
target_compile_definitions(android-qemu-deps INTERFACE "-DANDROID_IO")
android_target_compile_options(
  android-qemu-deps
  darwin-x86_64
  INTERFACE
  # Emit extra code to check for buffer overflows, such as stack smashing
  # attacks. This is done by adding a guard variable to functions with
  # vulnerable objects. This includes functions that call alloca, and functions
  # with buffers larger than 8 bytes. The guards are initialized when a function
  # is entered and then checked when the function exits. If a guard check fails,
  # an error message is printed and the program exits. Like -fstack-protector
  # but includes additional functions to be protected — those that have local
  # array definitions, or have references to local frame addresses.
  "-fstack-protector-strong"
  "-Wno-address-of-packed-member"
  "-Wno-format-security"
  "-Wno-initializer-overrides"
  "-Wno-tautological-compare"
  "-Wno-tautological-pointer-compare"
  "-Wno-unused-variable"
  "-Wno-return-type"
  "-Wno-shift-negative-value"
  # There are a series of out of bounds issues in hvf.
  "-Wno-array-bounds"
  "-Wno-format"
  "-Wno-implicit-int-float-conversion"
  "-Wno-reorder-init-list")
android_target_compile_definitions(android-qemu-deps darwin-x86_64 INTERFACE
                                   "-D_DARWIN_C_SOURCE=1")
android_target_link_libraries(android-qemu-deps darwin-x86_64 INTERFACE
                              "-framework IOKit" "-framework CoreFoundation")

# Windows x86 definitions
set(ANDROID_QEMU_arm_DEVICES_windows_msvc-x86_64
    "hvf-stub.c;accel/stubs/hax-stub.c;${ANDROID_QEMU_ARM_DEVICES}")
set(ANDROID_QEMU_i386_DEVICES_windows_msvc-x86_64
    "hvf-stub.c;hw/i386/acpi-build.c;${ANDROID_QEMU_COMMON_DEVICES}")
android_target_compile_options(
  android-qemu-deps
  windows_msvc-x86_64
  INTERFACE
  "-Wno-sometimes-uninitialized"
  "-Wno-return-type"
  "-Wno-initializer-overrides"
  "-Wno-int-to-void-pointer-cast"
  "-Wno-incompatible-pointer-types"
  "-Wno-unused-variable"
  "-Wno-microsoft-include"
  "-Wno-address-of-packed-member"
  "-Wno-address-of"
  "-mms-bitfields"
  "-mcx16"
  "-Wno-implicit-int-float-conversion"
  "-Wno-reorder-init-list")

android_target_compile_definitions(
  android-qemu-deps
  windows
  INTERFACE
  "-DWIN32_LEAN_AND_MEAN"
  "-DWINVER=0x601"
  "-D_WIN32_WINNT=0x601"
  "-D__USE_MINGW_ANSI_STDIO=1")

# Linux settings
set(ANDROID_QEMU_i386_DEVICES_linux-x86_64
    "hvf-stub.c;accel/stubs/hax-stub.c;hw/i386/acpi-build.c;${ANDROID_QEMU_COMMON_DEVICES}"
)
set(ANDROID_QEMU_arm_DEVICES_linux-x86_64
    "hvf-stub.c;accel/stubs/hax-stub.c;${ANDROID_QEMU_ARM_DEVICES}")

set(ANDROID_QEMU_i386_DEVICES_linux-aarch64
    "hvf-stub.c;accel/stubs/hax-stub.c;hw/i386/acpi-build.c;${ANDROID_QEMU_COMMON_DEVICES}"
)
set(ANDROID_QEMU_arm_DEVICES_linux-aarch64
    "hvf-stub.c;accel/stubs/hax-stub.c;${ANDROID_QEMU_ARM_DEVICES}")

android_target_include_directories(android-qemu-deps linux-x86_64 INTERFACE
                                   linux-headers)
android_target_include_directories(android-qemu-deps linux-aarch64 INTERFACE
                                   linux-headers)
android_target_compile_options(
  android-qemu-deps
  linux-x86_64
  INTERFACE
  # Emit extra code to check for buffer overflows, such as stack smashing
  # attacks. This is done by adding a guard variable to functions with
  # vulnerable objects. This includes functions that call alloca, and functions
  # with buffers larger than 8 bytes. The guards are initialized when a function
  # is entered and then checked when the function exits. If a guard check fails,
  # an error message is printed and the program exits. Like -fstack-protector
  # but includes additional functions to be protected — those that have local
  # array definitions, or have references to local frame addresses.
  "-fstack-protector-strong"
  "-Wno-address-of-packed-member"
  "-Wno-format-security"
  "-Wno-initializer-overrides"
  "-Wno-tautological-compare"
  "-Wno-tautological-pointer-compare"
  "-Wno-unused-variable"
  "-Wno-implicit-int-float-conversion"
  "-Wno-reorder-init-list")
android_target_link_libraries(android-qemu-deps linux-x86_64 INTERFACE
                              "${TCMALLOC_LIBRARIES} -lutil")
android_target_link_libraries(android-qemu-deps linux-aarch64 INTERFACE
                              "${TCMALLOC_LIBRARIES} -lutil")
android_target_link_libraries(android-qemu-deps darwin-x86_64 INTERFACE
                              "-framework CoreAudio")
android_target_link_libraries(android-qemu-deps windows_msvc-x86_64 INTERFACE
                              android-emu-base)

set(ANDROID_AUTOGEN "qemu2-auto-generated")
if (LINUX_AARCH64)
    set(ASM_DIR_TARGET "../linux-headers/asm-arm64" )
else()
    set(ASM_DIR_TARGET "../linux-headers/asm-x86" )
endif()

set(NEED_RELINK_ASM FALSE)
if (EXISTS ${ANDROID_QEMU2_TOP_DIR}/${ANDROID_AUTOGEN}/asm)
  # check the link is correct
  if (LINUX_AARCH64)
    if (EXISTS ${ANDROID_QEMU2_TOP_DIR}/${ANDROID_AUTOGEN}/asm/unistd_x32.h)
    set(NEED_RELINK_ASM TRUE)
    endif()
  else()
    if (NOT EXISTS ${ANDROID_QEMU2_TOP_DIR}/${ANDROID_AUTOGEN}/asm/unistd_x32.h)
    set(NEED_RELINK_ASM TRUE)
    endif()
  endif()
else()
  set(NEED_RELINK_ASM TRUE)
endif()

if (NEED_RELINK_ASM)
message("create_symlink ${ASM_DIR_TARGET} ${ANDROID_AUTOGEN}/asm")
execute_process(
        COMMAND ${CMAKE_COMMAND} -E create_symlink "${ASM_DIR_TARGET}" "${ANDROID_AUTOGEN}/asm"
        WORKING_DIRECTORY ${ANDROID_QEMU2_TOP_DIR})
endif()

set(ANDROID_QEMU2_TOP_DIR ${ANDROID_QEMU2_TOP_DIR})
include(cmake-main.${ANDROID_TARGET_TAG}.inc)

# Once we have a newer version of cmake we can generate the object library in a
# platform independent way b/121393952
android_add_library(
  TARGET qemu2-common
  LICENSE "GPL-2.0-only"
  LIBNAME
    qemu
    URL
    "https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev"
  REPO "${ANDROID_QEMU2_TOP_DIR}"
  NOTICE "REPO/LICENSE"
  SRC # cmake-format: sortable
      ${qemu2-shared_sources} ${qemu2-shared_generated_sources})
target_compile_definitions(qemu2-common PRIVATE "-DPOISON_CONFIG_ANDROID")
target_compile_options(qemu2-common PRIVATE "-Wno-string-plus-int"
                                            "-Wno-return-type")
target_link_libraries(qemu2-common PUBLIC android-qemu-deps)

if (NOT OPTION_AEMU_LIBS_ONLY)

  # Not allowed to have libraries without source files.
  android_add_library(
    TARGET headless-paaudio
    LICENSE "GPL-2.0-only"
    LIBNAME
      qemu
      URL
      "https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev"
    REPO "${ANDROID_QEMU2_TOP_DIR}"
    NOTICE "REPO/LICENSE"
    SRC # cmake-format: sortable
        audio/paaudio-headless-impl-placeholder.c
    LINUX audio/paaudio-headless-impl.c)
if (LINUX_AARCH64)
  target_include_directories(
        headless-paaudio
        PUBLIC
        ${ANDROID_QEMU2_TOP_DIR}/../../prebuilts/android-emulator-build/qemu-android-deps/linux-aarch64/include
        )
endif()

  android_add_interface(
    TARGET android-qemu-deps-headful
    LICENSE "GPL-2.0-only"
    LIBNAME
      qemu
      URL
      "https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev"
    REPO "${ANDROID_QEMU2_TOP_DIR}"
    NOTICE "REPO/LICENSE")
  android_target_link_libraries(android-qemu-deps-headful linux-x86_64 INTERFACE
                                "-lpulse")

  android_add_interface(
    TARGET android-qemu-deps-headless
    LICENSE "GPL-2.0-only"
    LIBNAME
      qemu
      URL
      "https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev"
    REPO "${ANDROID_QEMU2_TOP_DIR}"
    NOTICE "REPO/LICENSE")
  android_target_link_libraries(android-qemu-deps-headless linux-x86_64 INTERFACE
                                headless-paaudio)

  android_target_link_libraries(android-qemu-deps-headless linux-aarch64 INTERFACE
                                headless-paaudio)

  android_add_library(
    TARGET libqemu2-util
    LICENSE "GPL-2.0-only"
    LIBNAME
      qemu
      URL
      "https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev"
    REPO "${ANDROID_QEMU2_TOP_DIR}"
    NOTICE "REPO/LICENSE"
    SRC # cmake-format: sortable
        ${libqemuutil_sources} ${libqemuutil_generated_sources})
  target_link_libraries(libqemu2-util PRIVATE android-qemu-deps FDT)
  android_target_link_libraries(libqemu2-util windows
                                PRIVATE psapi::psapi winmm::winmm dxguid::dxguid)
  target_compile_definitions(libqemu2-util PRIVATE "-DPOISON_CONFIG_ANDROID")

  android_add_library(
    TARGET libqemustub
    LICENSE "GPL-2.0-only"
    LIBNAME
      qemu
      URL
      "https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev"
    REPO "${ANDROID_QEMU2_TOP_DIR}"
    NOTICE "REPO/LICENSE"
    SRC # cmake-format: sortable
        ${libqemustub_sources} ${libqemuutil_generated_sources})
  target_link_libraries(libqemustub PRIVATE android-qemu-deps)
  target_compile_definitions(libqemustub PRIVATE "-DLIBQEMUSTUB")

  # Qemu-img
  android_add_executable(
    TARGET qemu-img INSTALL .
    LICENSE GPL-2.0-only
    LIBNAME
      qemu
      URL
      "https://android.googlesource.com/platform/external/qemu/+/refs/heads/emu-master-dev"
    REPO "${ANDROID_QEMU2_TOP_DIR}"
    NOTICE "REPO/LICENSE"
    SRC # cmake-format: sortable
        ${qemu-img_sources} block/qcow2-bitmap.c
    LINUX scsi/pr-manager.c)
  target_link_libraries(qemu-img PRIVATE libqemu2-util libqemustub
                                         android-qemu-deps android-emu-base)

  # Create the qemu targets.
  if(NOT LINUX_AARCH64)
  android_add_qemu_executable(
    x86_64 "${ANDROID_QEMU_i386_DEVICES_${ANDROID_TARGET_TAG}}")
  android_add_qemu_headless_executable(
    x86_64 "${ANDROID_QEMU_i386_DEVICES_${ANDROID_TARGET_TAG}}")
  endif()
  android_add_qemu_executable(aarch64
                              "${ANDROID_QEMU_arm_DEVICES_${ANDROID_TARGET_TAG}}")
  android_add_qemu_headless_executable(
    aarch64 "${ANDROID_QEMU_arm_DEVICES_${ANDROID_TARGET_TAG}}")

  if(NOT OPTION_MINBUILD)
    android_add_qemu_executable(
      i386 "${ANDROID_QEMU_i386_DEVICES_${ANDROID_TARGET_TAG}}")
    android_add_qemu_executable(
      armel "${ANDROID_QEMU_arm_DEVICES_${ANDROID_TARGET_TAG}}")
    android_add_qemu_headless_executable(
      i386 "${ANDROID_QEMU_i386_DEVICES_${ANDROID_TARGET_TAG}}")
    android_add_qemu_headless_executable(
      armel "${ANDROID_QEMU_arm_DEVICES_${ANDROID_TARGET_TAG}}")
  endif()

  # and the upstream qemu targets, if desired.
  if(QEMU_UPSTREAM)
    message(STATUS "Building upstream qemu.")
    android_add_qemu_upstream_executable(
      i386 "${ANDROID_QEMU_i386_DEVICES_${ANDROID_TARGET_TAG}}")
    android_add_qemu_upstream_executable(
      x86_64 "${ANDROID_QEMU_i386_DEVICES_${ANDROID_TARGET_TAG}}")
    android_add_qemu_upstream_executable(
      aarch64 "${ANDROID_QEMU_arm_DEVICES_${ANDROID_TARGET_TAG}}")
    android_add_qemu_upstream_executable(
      armel "${ANDROID_QEMU_arm_DEVICES_${ANDROID_TARGET_TAG}}")
  endif()

  # The tests currently work on linux only.
  if(ANDROID_TARGET_TAG MATCHES "linux.*")
    include(qemu-test.cmake)
  endif()

endif()

file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/target.tag "${ANDROID_TARGET_TAG}")

# Construct licenses for all targets, this should always be the last thing we
# do.
finalize_all_licenses()