# **********************************************************
# Copyright (c) 2020-2021 Xuhpclab. All rights reserved.
# Licensed under the MIT License.
# See LICENSE file for more information.
#  **********************************************************

# i#277/PR 540817: DynamoRIO Extensions support

cmake_minimum_required(VERSION 3.7)

include(../make/policies.cmake NO_POLICY_SCOPE)

set(DynamoRIO_INTERNAL ON) # do not import dynamorio lib target
set(DynamoRIO_DIR ${PROJECT_BINARY_DIR}/cmake)
find_package(DynamoRIO ${VERSION_NUMBER_MAJOR}.${VERSION_NUMBER_MINOR})
if (NOT DynamoRIO_FOUND)
  message(FATAL_ERROR "DynamoRIO package required to build")
endif(NOT DynamoRIO_FOUND)

set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/ext/${INSTALL_LIB}")
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
# we have no exe's yet, and we want our dll's in the lib dir
# (could use MODULE instead of SHARED if it would let us link)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/ext/${INSTALL_LIB}")
set_per_config_ouput_to_match_single_config()

set(INSTALL_EXT_BASE ext)
set(INSTALL_EXT_BIN ${INSTALL_EXT_BASE}/${INSTALL_BIN})
set(INSTALL_EXT_LIB ${INSTALL_EXT_BASE}/${INSTALL_LIB})
set(INSTALL_EXT_INCLUDE ${INSTALL_EXT_BASE}/include)
set(INSTALL_EXT_CMAKE ${INSTALL_EXT_BASE}/cmake)

disable_compiler_warnings()
# Extensions don't include configure.h so they don't get DR defines
add_dr_defines()

# This lets us share common code among all extensions.  We use a macro to
# avoid scope issues and avoid having to call configure_DynamoRIO_global().
macro(configure_extension target is_static)
  configure_DynamoRIO_client(${target})

  # ensure we rebuild if includes change
  add_dependencies(${target} api_headers)

  # i#1713: extension headers may include a shared header from this directory
  include_directories(${INSTALL_EXT_LIB})

  if (${is_static})
    add_static_lib_debug_info(${target} "${INSTALL_EXT_LIB}")
  endif ()

  if (UNIX)
    # static libs must be PIC to be linked into clients: else requires
    # relocations that run afoul of security policies, etc.
    # Doesn't hurt to apply to shared libs as well, though CMake
    # should already be adding it.
    append_property_string(TARGET ${target} COMPILE_FLAGS "-fPIC")
  else ()
    # For version info we need global_shared.h included in resources.rc.
    # The extension must add core/win32/resources.rc as a source.
    include_directories(${PROJECT_SOURCE_DIR}/core/lib)
    append_property_list(TARGET ${target} COMPILE_DEFINITIONS "RC_IS_${target}")
  endif ()

  # documentation is put into main DR docs/ dir

  DR_export_target(${target})
  install_exported_target(${target} ${INSTALL_EXT_LIB})
  copy_target_to_device(${target} "${location_suffix}")
endmacro(configure_extension)

macro(install_ext_header header)
  DR_install(FILES ${header} DESTINATION ${INSTALL_EXT_INCLUDE})
  # We also need a copy in the build dir for our --build-and-test (i#1586)
  configure_file(${header} ${PROJECT_BINARY_DIR}/ext/include/${header} COPYONLY)
endmacro()

add_subdirectory(drcontainers)
if (NOT ANDROID AND NOT ARM AND NOT AARCH64)
  # XXX i#1701: fails to build on Android.  May not be worth porting.
  # XXX: fails when cross-compiling for ARM or A64 on a machine with x86 Qt5 installing.
  # Working around that by just disabling for ARM and A64 completely.
  add_subdirectory(drgui)
endif ()
add_subdirectory(drmgr)
add_subdirectory(drx)
add_subdirectory(drwrap)
add_subdirectory(drreg)
add_subdirectory(drbbdup)
add_subdirectory(drsyms)
add_subdirectory(drutil)
add_subdirectory(droption)
add_subdirectory(drcovlib)
add_subdirectory(drcctlib)
add_subdirectory(drstatecmp)
if (BUILD_PT_TRACER)
  add_subdirectory(drpttracer)
endif (BUILD_PT_TRACER)
if (LINUX) # TODO i#2414: Port to Windows, Mac, and Android.
  if (HAVE_LIBUNWIND_H)
    add_subdirectory(drcallstack)
  else ()
    # Require libunwind.h for automated testing.
    # The TEST_SUITE var is set for packages too, to ensure we publish drcallstack.
    # We do not install for Android nor a64-on-x86 in the suite.
    if (TEST_SUITE AND NOT ANDROID AND NOT DR_HOST_NOT_TARGET)
      message(FATAL_ERROR "libunwind-dev is required to build drcallstack")
    else ()
      message(STATUS "libunwind-dev package not installed: not building drcallstack")
    endif ()
  endif ()
endif ()

# documentation is put into main DR docs/ dir

install_subdirs(${INSTALL_EXT_LIB} ${INSTALL_EXT_BIN})

# propagate to parent dir
set(exported_targets_append "${exported_targets_append}" PARENT_SCOPE)

install_ext_header("drext.h")