cmake_minimum_required(VERSION 3.12)

# Please note that cmake support is very preliminary. Autotools-based
# build is the only fully supported build for now.

# Based on configure.ac

project(gperftools VERSION 2.15 LANGUAGES C CXX
        DESCRIPTION "Performance tools for C++"
        HOMEPAGE_URL https://github.com/gperftools/gperftools)

# Update this value for every release!
set(TCMALLOC_SO_VERSION 9.16.5)
set(PROFILER_SO_VERSION 5.11.5)
set(TCMALLOC_AND_PROFILER_SO_VERSION 10.11.6)

# The user can choose not to compile in the heap-profiler, the
# heap-checker, or the cpu-profiler.  There's also the possibility
# for a 'fully minimal' compile, which leaves out the stacktrace
# code as well.  By default, we include all of these that the
# target system supports.
set(DEFAULT_BUILD_CPU_PROFILER ON)
set(DEFAULT_BUILD_HEAP_PROFILER ON)
set(DEFAULT_BUILD_HEAP_CHECKER OFF)
set(DEFAULT_BUILD_DEBUGALLOC ON)
set(DEFAULT_BUILD_MINIMAL OFF)

set(DEFAULT_TCMALLOC_ALIGNMENT 16)
set(NEED_NANOSLEEP ON) # Used later, to decide if to run ACX_NANOSLEEP

set(HOST string(TOLOWER "${CMAKE_SYSTEM_NAME}"))

if(MINGW OR MSVC)
  set(DEFAULT_BUILD_MINIMAL ON)
  set(DEFAULT_BUILD_DEBUGALLOC OFF)
  set(NEED_NANOSLEEP OFF)
elseif(CYGWIN)
  set(DEFAULT_BUILD_CPU_PROFILER OFF)
endif()

# Heap checker is Linux-only (and deprecated).
if(CMAKE_SYSTEM MATCHES Linux)
  set(DEFAULT_BUILD_HEAP_CHECKER ON)
endif()

include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckCSourceCompiles)
include(CheckCXXSourceCompiles)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckLibraryExists)
include(CheckSymbolExists)
include(CheckTypeSize)
include(CheckVariableExists)
include(CMakeDependentOption)
include(CTest)
include(CPack)
include(GNUInstallDirs)

list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
include(DefineTargetVariables)

define_target_variables()

# Currently only backtrace works on s390.
if(s390 OR OSX)
  set(default_enable_libunwind OFF)
  set(default_enable_backtrace ON)
else()
  set(default_enable_libunwind ON)
  set(default_enable_backtrace OFF)
endif()

# Disable libunwind linking on ppc64 by default.
if(PPC64)
  set(default_enable_libunwind OFF)
  set(default_tcmalloc_pagesize 64)
else()
  if(PPC)
    set(default_enable_libunwind OFF)
  else()
    set(default_enable_libunwind ON)
  endif()
  set(default_tcmalloc_pagesize 8)
endif()

cmake_dependent_option(
  GPERFTOOLS_BUILD_CPU_PROFILER "Build cpu-profiler" ${DEFAULT_BUILD_CPU_PROFILER}
  "NOT gperftools_build_minimal" OFF)
cmake_dependent_option(
  GPERFTOOLS_BUILD_HEAP_PROFILER "Build heap-profiler" ${DEFAULT_BUILD_HEAP_PROFILER}
  "NOT gperftools_build_minimal" OFF)
cmake_dependent_option(
  GPERFTOOLS_BUILD_HEAP_CHECKER "Build heap-checker" ${DEFAULT_BUILD_HEAP_CHECKER}
  "NOT gperftools_build_minimal" OFF)
cmake_dependent_option(
  GPERFTOOLS_BUILD_DEBUGALLOC "Build debugalloc" ${DEFAULT_BUILD_DEBUGALLOC}
  "NOT gperftools_build_minimal" OFF)
option(
        gperftools_build_minimal
        "Build only tcmalloc-minimal (and maybe tcmalloc-minimal-debug)"
        ${DEFAULT_BUILD_MINIMAL})
if(gperftools_build_minimal)
  set(GPERFTOOLS_BUILD_CPU_PROFILER OFF)
  set(GPERFTOOLS_BUILD_HEAP_PROFILER OFF)
  set(GPERFTOOLS_BUILD_HEAP_CHECKER OFF)
endif()

cmake_dependent_option(
  gperftools_build_benchmark "Build benchmark" ON "NOT MINGW AND NOT MSVC" OFF)

option(gperftools_enable_stacktrace_via_backtrace
       "Enable use of backtrace() for stacktrace capturing (may deadlock)"
       ${default_enable_backtrace})
option(gperftools_enable_libunwind
       "Enable libunwind linking"
       ${default_enable_libunwind})

set(enable_backtrace ${gperftools_enable_stacktrace_via_backtrace})
set(enable_libunwind ${gperftools_enable_libunwind})

option(gperftools_enable_libgcc_unwinder_by_default
       "Prefer libgcc's _Unwind_Backtrace as default stacktrace capturing method"
       OFF)
set(PREFER_LIBGCC_UNWINDER ${gperftools_enable_libgcc_unwinder_by_default})

set(gperftools_tcmalloc_pagesize ${default_tcmalloc_pagesize}
  CACHE STRING "Set the tcmalloc internal page size")
set(allowed_page_sizes LIST "4;8;16;32;64;128;256")
set_property(CACHE gperftools_tcmalloc_pagesize PROPERTY STRINGS ${allowed_page_sizes})
if(NOT gperftools_tcmalloc_pagesize IN_LIST allowed_page_sizes)
  message(WARNING
    "Invalid gperftools_tcmalloc_pagesize (${gperftools_tcmalloc_pagesize}), "
    "setting to default value (${default_tcmalloc_pagesize})")
  set(gperftools_tcmalloc_pagesize ${default_tcmalloc_pagesize})
endif()
if (gperftools_tcmalloc_pagesize EQUAL 4)
  set(TCMALLOC_PAGE_SIZE_SHIFT 12)
elseif(gperftools_tcmalloc_pagesize EQUAL 8)
  # default page size
elseif(gperftools_tcmalloc_pagesize EQUAL 16)
  set(TCMALLOC_PAGE_SIZE_SHIFT 14)
elseif(gperftools_tcmalloc_pagesize EQUAL 32)
  set(TCMALLOC_PAGE_SIZE_SHIFT 15)
elseif(gperftools_tcmalloc_pagesize EQUAL 64)
  set(TCMALLOC_PAGE_SIZE_SHIFT 16)
elseif(gperftools_tcmalloc_pagesize EQUAL 128)
  set(TCMALLOC_PAGE_SIZE_SHIFT 17)
elseif(gperftools_tcmalloc_pagesize EQUAL 256)
  set(TCMALLOC_PAGE_SIZE_SHIFT 18)
else()
  message(WARNING
  "${gperftools_tcmalloc_pagesize}K size not supported, using default tcmalloc page size.")
endif()

set(gperftools_tcmalloc_alignment ${DEFAULT_TCMALLOC_ALIGNMENT}
  CACHE STRING "Set the tcmalloc allocation alignment")
set_property(CACHE gperftools_tcmalloc_alignment PROPERTY STRINGS "8" "16")
if(NOT gperftools_tcmalloc_alignment STREQUAL "8" AND
   NOT gperftools_tcmalloc_alignment STREQUAL "16")
  message(WARNING
      "Invalid gperftools_tcmalloc_alignment (${gperftools_tcmalloc_alignment}), "
      "setting to default value (${DEFAULT_TCMALLOC_ALIGNMENT})")
  set(gperftools_tcmalloc_alignment ${DEFAULT_TCMALLOC_ALIGNMENT})
endif()
if(gperftools_tcmalloc_alignment STREQUAL "8")
  set(TCMALLOC_ALIGN_8BYTES ON)
endif()

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS ON)

# AX_C___ATTRIBUTE__
check_c_source_compiles("#include <stdlib.h>
                         static void foo(void) __attribute__ ((unused));
                         void foo(void) { exit(1); }
                         int main() { return 0; }"
        HAVE___ATTRIBUTE__)

check_c_source_compiles("#include <stdlib.h>
                        void foo(void) __attribute__((aligned(128)));
                        void foo(void) { exit(1); }
                        int main() { return 0; }"
        HAVE___ATTRIBUTE__ALIGNED_FN) 

set(CMAKE_EXTRA_INCLUDE_FILES "malloc.h")
check_type_size("struct mallinfo" STRUCT_MALLINFO LANGUAGE CXX)
check_type_size("struct mallinfo2" STRUCT_MALLINFO2 LANGUAGE CXX)
set(CMAKE_EXTRA_INCLUDE_FILES "elf.h")
check_type_size("Elf32_Versym" ELF32_VERSYM LANGUAGE CXX) # for vdso_support.h
set(CMAKE_EXTRA_INCLUDE_FILES)
check_function_exists("sbrk" HAVE_SBRK) # for tcmalloc to get memory
check_function_exists("__sbrk" HAVE___SBRK) # for tcmalloc to get memory
check_function_exists("geteuid" HAVE_GETEUID) # for turning off services when run as root
check_include_file("features.h" HAVE_FEATURES_H) # for vdso_support.h, Where __GLIBC__ is defined
check_include_file("malloc.h" HAVE_MALLOC_H) # some systems define stuff there, others not
check_include_file("glob.h" HAVE_GLOB_H) # for heap-profile-table (cleaning up profiles)
check_include_file("execinfo.h" HAVE_EXECINFO_H) # for stacktrace? and heapchecker_unittest
check_include_file("unwind.h" HAVE_UNWIND_H) # for stacktrace
check_include_file("sched.h" HAVE_SCHED_H) # for being nice in our spinlock code
check_include_file("sys/syscall.h" HAVE_SYS_SYSCALL_H)
check_include_file("sys/socket.h" HAVE_SYS_SOCKET_H) # optional; for forking out to symbolizer
check_include_file("sys/wait.h" HAVE_SYS_WAIT_H) # optional; for forking out to symbolizer
check_include_file("poll.h" HAVE_POLL_H) # optional; for forking out to symbolizer
check_include_file("fcntl.h" HAVE_FCNTL_H) # for tcmalloc_unittest
check_include_file("grp.h" HAVE_GRP_H) # for heapchecker_unittest
check_include_file("pwd.h" HAVE_PWD_H) # for heapchecker_unittest
check_include_file("sys/resource.h" HAVE_SYS_RESOURCE_H) # for memalign_unittest.cc
check_include_file("sys/cdefs.h" HAVE_SYS_CDEFS_H) # Where glibc defines __THROW

check_include_file("sys/ucontext.h" HAVE_SYS_UCONTEXT_H)
check_include_file("ucontext.h" HAVE_UCONTEXT_H)
check_include_file("cygwin/signal.h" HAVE_CYGWIN_SIGNAL_H) # ucontext on cywgin
check_include_file("asm/ptrace.h" HAVE_ASM_PTRACE_H) # get ptrace macros, e.g. PT_NIP

check_include_file("unistd.h" HAVE_UNISTD_H)
# We also need <ucontext.h>/<sys/ucontext.h>, but we get those from
# AC_PC_FROM_UCONTEXT, below.

# We override a lot of memory allocation routines, not all of which are
# standard.  For those the system doesn't declare, we'll declare ourselves.
set(CMAKE_REQUIRED_DEFINITIONS -D_XOPEN_SOURCE=600)
check_symbol_exists("cfree" "stdlib.h;malloc.h" HAVE_DECL_CFREE)
check_symbol_exists("posix_memalign" "stdlib.h;malloc.h" HAVE_DECL_POSIX_MEMALIGN)
check_symbol_exists("memalign" "stdlib.h;malloc.h" HAVE_DECL_MEMALIGN)
check_symbol_exists("valloc" "stdlib.h;malloc.h" HAVE_DECL_VALLOC)
check_symbol_exists("pvalloc" "stdlib.h;malloc.h" HAVE_DECL_PVALLOC)
set(CMAKE_REQUIRED_DEFINITIONS)

if(HAVE_STRUCT_MALLINFO)
    set(HAVE_STRUCT_MALLINFO 1)
else()
    set(HAVE_STRUCT_MALLINFO 0)
endif()

if(HAVE_STRUCT_MALLINFO2)
    set(HAVE_STRUCT_MALLINFO2 1)
else()
    set(HAVE_STRUCT_MALLINFO2 0)
endif()

# We hardcode HAVE_MMAP to 1. There are no interesting systems anymore
# without functional mmap. And our windows (except mingw) builds
# aren't using autoconf. So we keep HAVE_MMAP define, but only to
# distingush windows and rest.
if(NOT WIN32)
  set(HAVE_MMAP 1)
endif()

# Some tests test the behavior of .so files, and only make sense for dynamic.
option(GPERFTOOLS_BUILD_STATIC "Enable Static" ON)

if(gperftools_enable_libunwind)
  check_include_file("libunwind.h" HAVE_LIBUNWIND_H)
  if(HAVE_LIBUNWIND_H)
    find_library(libunwind_location NAMES unwind)
    if(libunwind_location)
      check_library_exists(
        unwind backtrace ${libunwind_location} have_libunwind)
    endif()
    if(have_libunwind)
      set(unwind_libs ${libunwind_location})
      set(will_use_libunwind ON)
      set(USE_LIBUNWIND 1)
    endif()
  endif()
endif()

check_c_compiler_flag("-fno-omit-frame-pointer -momit-leaf-frame-pointer" have_omit_leaf_fp)
check_c_source_compiles("
  #if !(__i386__ || __x86_64__ || __riscv || __aarch64__)
  #error unsupported arch
  #endif
  int main() { return 0; }
  "
  use_omit_leaf_fp)

if (use_omit_leaf_fp)
  add_compile_options(-fno-omit-frame-pointer -momit-leaf-frame-pointer)
endif()

option(gperftools_dynamic_sized_delete_support
       "Try to build run-time switch for sized delete operator"
       OFF)
if(gperftools_dynamic_sized_delete_support)
  set(ENABLE_DYNAMIC_SIZED_DELETE 1)
endif()

option(gperftools_sized_delete "Build sized delete operator" OFF)
if(gperftools_sized_delete)
  set(ENABLE_SIZED_DELETE 1)
endif()

if(NOT MSVC)
  set(CMAKE_REQUIRED_FLAGS -fsized-deallocation)
  check_cxx_source_compiles("
  #include <new>
  int main() { (::operator delete)(0, 256); return 0; }"
          have_sized_deallocation)
  set(CMAKE_REQUIRED_FLAGS)
endif()

check_c_source_compiles("
  #include <unwind.h>
  int main()
  {
#if __APPLE__ || __FreeBSD__
#error OSX _Unwind_Backtrace recurses back to malloc
#endif
    &_Unwind_Backtrace;
    return 0;
  }"
  HAVE_UNWIND_BACKTRACE)

if(enable_backtrace)
  set(default_emergency_malloc ON)
else()
  set(default_emergency_malloc OFF)
endif()

if(will_use_libunwind AND ARM)
  set(default_emergency_malloc ON)
endif()

option(gperftools_emergency_malloc
       "Build emergency malloc"
       ${default_emergency_malloc})

check_c_source_compiles(
  "int main() { return __builtin_expect(main != 0, 1); }"
  HAVE_BUILTIN_EXPECT)

check_c_source_compiles("
  #include <unistd.h>
  int main()
  {
    char** env = __environ;
    return 0;
  }"
  HAVE___ENVIRON)

if(NEED_NANOSLEEP)
  check_c_source_compiles(
    "#include <time.h>
     int main()
     { static struct timespec ts; nanosleep(&ts, NULL); return 0; }"
    nanosleep_ok)
  if(NOT nanosleep_ok)
    set(CMAKE_REQUIRED_LIBRARIES rt)
    check_c_source_compiles(
      "#include <time.h>
       int main()
       { static struct timespec ts; nanosleep(&ts, NULL); return 0; }"
      nanosleep_ok)
    if(nanosleep_ok)
      set(nanosleep_libs rt)
    else()
      message(FATAL_ERROR "cannot find the nanosleep function")
    endif()
    set(CMAKE_REQUIRED_LIBRARIES)
  endif()
endif()

# Nanosleep requires extra libraries on some architectures (solaris).
# This sets NANOSLEEP_LIBS.  nanosleep doesn't exist on mingw, which
# is fine for us because we don't compile libspinlock, which uses it.
if(enable_backtrace)
  check_symbol_exists("backtrace" "execinfo.h" HAVE_DECL_BACKTRACE)
  check_function_exists("backtrace" backtrace_exists)
  if(NOT backtrace_exists)
    set(CMAKE_REQUIRED_LIBRARIES execinfo)
    check_function_exists("backtrace" backtrace_exists)
    set(CMAKE_REQUIRED_LIBRARIES)
    if(backtrace_exists)
      list(INSERT unwind_libs 0 execinfo)
    endif()
  endif()
endif()

find_package(Threads REQUIRED)
set(HAVE_PTHREAD ${CMAKE_USE_PTHREADS_INIT})

check_variable_exists("program_invocation_name" HAVE_PROGRAM_INVOCATION_NAME)

if(MINGW)
  check_symbol_exists("sleep" "unistd.h" HAVE_DECL_SLEEP)
  check_symbol_exists("nanosleep" "time.h" HAVE_DECL_NANOSLEEP)
endif()

if(LINUX)
  check_c_source_compiles("
    #include <signal.h>
    #include <time.h>
    int main() { return SIGEV_THREAD_ID || CLOCK_THREAD_CPUTIME_ID; }"
    HAVE_LINUX_SIGEV_THREAD_ID)
endif()

# Disable large allocation report by default.
option(gperftools_enable_large_alloc_report
      "Report very large allocations to stderr"
      OFF)
set(ENABLE_LARGE_ALLOC_REPORT ${gperftools_enable_large_alloc_report})

# Enable aggressive decommit by default
option(gperftools_enable_aggressive_decommit_by_default
      "Enable aggressive decommit by default"
      OFF)
set(ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT ${gperftools_enable_aggressive_decommit_by_default})


configure_file(cmake/config.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h @ONLY)
configure_file(cmake/tcmalloc.h.in
               ${CMAKE_CURRENT_BINARY_DIR}/gperftools/tcmalloc.h
               @ONLY)

if(GPERFTOOLS_BUILD_CPU_PROFILER OR
   GPERFTOOLS_BUILD_HEAP_PROFILER OR
   GPERFTOOLS_BUILD_HEAP_CHECKER)
  set(WITH_STACK_TRACE ON)
endif()

# Based on Makefile.am

set(CMAKE_POSITION_INDEPENDENT_CODE ON)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# This is so we can #include <gperftools/foo>
include_directories($<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>)

if(NOT WITH_STACK_TRACE)
  add_compile_definitions(NO_TCMALLOC_SAMPLES)
endif()

# These are good warnings to turn on by default.
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wwrite-strings -Woverloaded-virtual -Wno-sign-compare")
endif()

if(have_sized_deallocation)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsized-deallocation")
endif()

option(
  gperftools_enable_frame_pointers
  "Compile with -fno-omit-frame-pointer (see INSTALL)"
  OFF)

if(gperftools_enable_frame_pointers)
  add_compile_options(-fno-omit-frame-pointer -DFORCED_FRAME_POINTERS)
endif()

# For windows systems (at least, mingw), we need to tell all our
# tests to link in libtcmalloc using -u.  This is because libtcmalloc
# accomplishes its tasks via patching, leaving no work for the linker
# to identify, so the linker will ignore libtcmalloc by default unless
# we explicitly create a dependency via -u.
set(TCMALLOC_FLAGS)
if(MINGW)
  list(APPEND TCMALLOC_FLAGS "-Wl,-u__tcmalloc")
endif()

# This is a 'convenience library' -- it's not actually installed or anything
set(LOGGING_INCLUDES
        src/base/logging.h
        src/base/commandlineflags.h
        src/base/basictypes.h
        src/base/threading.h
        src/base/dynamic_annotations.h)
set(liblogging_la_SOURCES src/base/logging.cc
        src/base/generic_writer.cc
        src/base/dynamic_annotations.cc
        ${LOGGING_INCLUDES})
add_library(logging STATIC ${liblogging_la_SOURCES})

set(SYSINFO_INCLUDES
        src/base/sysinfo.h
        src/getenv_safe.h
        src/base/logging.h
        src/base/commandlineflags.h
        src/base/threading.h
        src/base/basictypes.h)
set(libsysinfo_la_SOURCES src/base/sysinfo.cc src/base/proc_maps_iterator.cc
        ${SYSINFO_INCLUDES})
set(libsysinfo_la_LIBADD ${NANOSLEEP_LIBS})
add_library(sysinfo STATIC ${libsysinfo_la_SOURCES})
target_link_libraries(sysinfo ${libsysinfo_la_LIBADD})

# For MinGW, we use also have to use libwindows Luckily, we need the
# windows.a library in exactly the same place we need spinlock.a
# (pretty much everywhere), so we can use the same variable name for
# each.  We can also optimize the MinGW rule a bit by leaving out
# files we know aren't used on windows.  libwindows also obsoletes the
# need for other files like system_alloc.cc.
if(MINGW OR MSVC)
  set(WINDOWS_INCLUDES
          src/windows/port.h
          src/windows/mini_disassembler.h
          src/windows/mini_disassembler_types.h
          src/windows/preamble_patcher.h)
  set(libwindows_la_SOURCES ${WINDOWS_INCLUDES}
          src/windows/port.cc
          src/windows/system-alloc.cc
          src/windows/ia32_modrm_map.cc
          src/windows/ia32_opcode_map.cc
          src/windows/mini_disassembler.cc
          src/windows/patch_functions.cc
          src/windows/preamble_patcher.cc
          src/windows/preamble_patcher_with_stub.cc)
  add_library(windows_object OBJECT ${libwindows_la_SOURCES})
  add_library(windows INTERFACE)
  target_sources(windows INTERFACE $<TARGET_OBJECTS:windows_object>)
  # patch_functions.cc uses Psapi.lib.  MSVC has a #pragma for that, but not us.
  target_link_libraries(windows INTERFACE psapi)

  set(SPINLOCK_INCLUDES src/base/spinlock.h
          src/base/spinlock_internal.h
          src/base/spinlock_win32-inl.h
          src/base/spinlock_linux-inl.h
          src/base/spinlock_posix-inl.h)
  set(libspinlock_la_SOURCES src/base/spinlock.cc
          src/base/spinlock_internal.cc
          ${SPINLOCK_INCLUDES})
  add_library(spinlock STATIC ${libspinlock_la_SOURCES})
  set(LIBSPINLOCK windows spinlock sysinfo logging)
  # We also need to tell mingw that sysinfo.cc needs shlwapi.lib.
  # (We do this via a #pragma for msvc, but need to do it here for mingw).
  target_link_libraries(sysinfo shlwapi)
  # spinlock uses WaitOnAddress et al. We need to link to synchronization.lib
  # (We also do this via a #pragma for msvc, but need to do it here for mingw).
  target_link_libraries(spinlock synchronization)

  set(MAYBE_PORT_CC src/windows/port.cc)

else()
  set(SPINLOCK_INCLUDES src/base/spinlock.h
          src/base/spinlock_internal.h)
  set(libspinlock_la_SOURCES src/base/spinlock.cc
          src/base/spinlock_internal.cc
          ${SPINLOCK_INCLUDES})
  add_library(spinlock STATIC ${libspinlock_la_SOURCES})
  target_link_libraries(spinlock ${nanosleep_libs})
  set(LIBSPINLOCK spinlock sysinfo logging)
  set(TCMALLOC_CC "src/tcmalloc.cc")
  set(SYSTEM_ALLOC_CC "src/system-alloc.cc")
  set(MAYBE_PORT_CC)

endif()

if(BUILD_TESTING)
  set(LOW_LEVEL_ALLOC_UNITTEST_INCLUDES
          src/base/low_level_alloc.h
          src/base/threading.h
          src/base/basictypes.h
          src/gperftools/malloc_hook.h
          src/gperftools/malloc_hook_c.h
          src/malloc_hook-inl.h
          ${SPINLOCK_INCLUDES}
          ${LOGGING_INCLUDES})
  set(low_level_alloc_unittest_SOURCES src/base/low_level_alloc.cc
          src/malloc_hook.cc
          src/mmap_hook.cc
          src/tests/low_level_alloc_unittest.cc
          ${LOW_LEVEL_ALLOC_UNITTEST_INCLUDES})
  if(MSVC OR MINGW)
      list(APPEND low_level_alloc_unittest_SOURCES src/windows/port.cc)
  endif()
  add_executable(low_level_alloc_unittest ${low_level_alloc_unittest_SOURCES})
  # By default, MallocHook takes stack traces for use by the heap-checker.
  # We don't need that functionality here, so we turn it off to reduce deps.
  target_compile_definitions(low_level_alloc_unittest PRIVATE NO_TCMALLOC_SAMPLES)
  target_link_libraries(low_level_alloc_unittest spinlock sysinfo logging gtest)
  add_test(low_level_alloc_unittest low_level_alloc_unittest)
endif()

### ------- stack trace

if(WITH_STACK_TRACE)

  set(S_STACKTRACE_INCLUDES src/stacktrace_impl_setup-inl.h
          src/stacktrace_generic-inl.h
          src/stacktrace_libgcc-inl.h
          src/stacktrace_libunwind-inl.h
          src/stacktrace_arm-inl.h
          src/stacktrace_powerpc-inl.h
          src/stacktrace_powerpc-darwin-inl.h
          src/stacktrace_powerpc-linux-inl.h
          src/stacktrace_win32-inl.h
          src/stacktrace_instrument-inl.h
          src/base/elf_mem_image.h
          src/base/vdso_support.h)

  set(SG_STACKTRACE_INCLUDES src/gperftools/stacktrace.h)
  set(STACKTRACE_INCLUDES ${S_STACKTRACE_INCLUDES} ${SG_STACKTRACE_INCLUDES})
  list(APPEND perftoolsinclude_HEADERS ${SG_STACKTRACE_INCLUDES})

  ### Making the library
  set(libstacktrace_la_SOURCES src/stacktrace.cc
          src/base/elf_mem_image.cc
          src/base/vdso_support.cc
          ${STACKTRACE_INCLUDES})
  add_library(stacktrace INTERFACE)
  add_library(stacktrace_object OBJECT ${libstacktrace_la_SOURCES})
  target_link_libraries(stacktrace INTERFACE ${unwind_libs} ${LIBSPINLOCK})
  target_sources(stacktrace INTERFACE $<TARGET_OBJECTS:stacktrace_object>)

  if(BUILD_TESTING)
    set(STACKTRACE_UNITTEST_INCLUDES src/config_for_unittests.h
            src/base/commandlineflags.h
            ${STACKTRACE_INCLUDES}
            ${LOGGING_INCLUDES})

    add_executable(stacktrace_unittest src/tests/stacktrace_unittest.cc ${libstacktrace_la_SOURCES})
    target_link_libraries(stacktrace_unittest logging ${LIBSPINLOCK} ${unwind_libs})
    target_compile_definitions(stacktrace_unittest PRIVATE STACKTRACE_IS_TESTED)
    add_test(stacktrace_unittest stacktrace_unittest)

    add_executable(check_address_test src/tests/check_address_test.cc)
    target_link_libraries(check_address_test spinlock sysinfo logging gtest)
    add_test(check_address_test check_address_test)
  endif()

endif()

### ------- pprof

# If we are not compiling with stacktrace support, pprof is worthless
if(WITH_STACK_TRACE)
  install(FILES src/pprof DESTINATION ${CMAKE_INSTALL_BINDIR} RENAME pprof-symbolize)

  if(BUILD_TESTING)
    add_test(NAME pprof_unittest
            COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/src/pprof" -test
            VERBATIM)
    list(APPEND TESTS_ENVIRONMENT "PPROF_PATH=${CMAKE_CURRENT_SOURCE_DIR}/src/pprof")
  endif()
  if(INSTALL_PPROF)
      install(FILES src/pprof DESTINATION ${CMAKE_INSTALL_BINDIR})
  endif()
endif()

### ------- tcmalloc_minimal (thread-caching malloc)

### The header files we use.  We divide into categories based on directory
set(S_TCMALLOC_MINIMAL_INCLUDES src/common.h
        src/internal_logging.h
        src/system-alloc.h
        src/packed-cache-inl.h
        ${SPINLOCK_INCLUDES}
        src/tcmalloc_guard.h
        src/base/commandlineflags.h
        src/base/threading.h
        src/base/basictypes.h
        src/safe_strerror.h
        src/pagemap.h
        src/sampler.h
        src/central_freelist.h
        src/linked_list.h
        src/libc_override.h
        src/libc_override_gcc_and_weak.h
        src/libc_override_glibc.h
        src/libc_override_osx.h
        src/libc_override_redefine.h
        src/page_heap.h
        src/page_heap_allocator.h
        src/span.h
        src/static_vars.h
        src/symbolize.h
        src/thread_cache.h
        src/thread_cache_ptr.h
        src/stack_trace_table.h
        src/base/thread_annotations.h
        src/malloc_hook-inl.h)
set(SG_TCMALLOC_MINIMAL_INCLUDES src/gperftools/malloc_hook.h
        src/gperftools/malloc_hook_c.h
        src/gperftools/malloc_extension.h
        src/gperftools/malloc_extension_c.h
        src/gperftools/nallocx.h)
set(TCMALLOC_MINIMAL_INCLUDES ${S_TCMALLOC_MINIMAL_INCLUDES} ${SG_TCMALLOC_MINIMAL_INCLUDES} ${SG_STACKTRACE_INCLUDES})
list(APPEND perftoolsinclude_HEADERS ${SG_TCMALLOC_MINIMAL_INCLUDES})

### Making the library

set(libtcmalloc_minimal_internal_la_SOURCES src/common.cc
        src/internal_logging.cc
        ${SYSTEM_ALLOC_CC}
        src/memfs_malloc.cc
        src/safe_strerror.cc
        src/central_freelist.cc
        src/page_heap.cc
        src/sampler.cc
        src/span.cc
        src/stack_trace_table.cc
        src/static_vars.cc
        src/symbolize.cc
        src/thread_cache.cc
        src/thread_cache_ptr.cc
        src/malloc_hook.cc
        src/malloc_extension.cc
        ${TCMALLOC_MINIMAL_INCLUDES})
add_library(tcmalloc_minimal_internal_object OBJECT ${libtcmalloc_minimal_internal_la_SOURCES})
# We #define NO_TCMALLOC_SAMPLES, since sampling is turned off for _minimal.
target_compile_definitions(tcmalloc_minimal_internal_object PRIVATE NO_TCMALLOC_SAMPLES NO_HEAP_CHECK NDEBUG)
add_library(tcmalloc_minimal_internal INTERFACE)
target_link_libraries(tcmalloc_minimal_internal INTERFACE ${LIBSPINLOCK})
target_sources(tcmalloc_minimal_internal INTERFACE $<TARGET_OBJECTS:tcmalloc_minimal_internal_object>)

set(libtcmalloc_minimal_la_SOURCES ${TCMALLOC_CC} ${TCMALLOC_MINIMAL_INCLUDES})
set(libtcmalloc_minimal_la_DEFINES NO_TCMALLOC_SAMPLES NDEBUG)
add_library(tcmalloc_minimal SHARED ${libtcmalloc_minimal_la_SOURCES})
target_compile_definitions(tcmalloc_minimal PRIVATE ${libtcmalloc_minimal_la_DEFINES})
set(libtcmalloc_minimal_la_LIBADD tcmalloc_minimal_internal)
target_link_libraries(tcmalloc_minimal PRIVATE tcmalloc_minimal_internal Threads::Threads)
if(MINGW AND WITH_STACK_TRACE)
  target_link_libraries(tcmalloc_minimal PRIVATE stacktrace)
endif()
set_target_properties(tcmalloc_minimal PROPERTIES
        VERSION ${TCMALLOC_SO_VERSION}
        SOVERSION ${TCMALLOC_SO_VERSION})
install(TARGETS tcmalloc_minimal)
if(GPERFTOOLS_BUILD_STATIC)
    add_library(tcmalloc_minimal_static STATIC ${libtcmalloc_minimal_internal_la_SOURCES})
    target_compile_definitions(tcmalloc_minimal_static PRIVATE NO_TCMALLOC_SAMPLES NDEBUG)
    target_link_libraries(tcmalloc_minimal_static PRIVATE tcmalloc_minimal_internal Threads::Threads)
    if(MINGW AND WITH_STACK_TRACE)
      target_link_libraries(tcmalloc_minimal_static PRIVATE stacktrace)
    endif()
    if(NOT MSVC)
      set_target_properties(tcmalloc_minimal_static PROPERTIES
              OUTPUT_NAME tcmalloc_minimal)
    endif()
    install(TARGETS tcmalloc_minimal_static)
endif()

if(BUILD_TESTING)
  set(tcmalloc_minimal_unittest_SOURCES
          src/tests/tcmalloc_unittest.cc
          src/tests/testutil.h src/tests/testutil.cc
          ${TCMALLOC_UNITTEST_INCLUDES})
  set(tcmalloc_minimal_unittest_LDADD
          ${TCMALLOC_FLAGS} Threads::Threads logging)
  # We want libtcmalloc last on the link line, but due to a bug in
  # libtool involving convenience libs, they need to come last on the
  # link line in order to get dependency ordering right.  This is ok:
  # convenience libraries are .a's, so tcmalloc is still the last .so.
  # We also put pthreads after tcmalloc, because some pthread
  # implementations define their own malloc, and we need to go on the
  # first linkline to make sure our malloc 'wins'.
  add_executable(tcmalloc_minimal_unittest ${tcmalloc_minimal_unittest_SOURCES})
  target_link_libraries(tcmalloc_minimal_unittest tcmalloc_minimal ${tcmalloc_minimal_unittest_LDADD})
  add_test(tcmalloc_minimal_unittest tcmalloc_minimal_unittest)

  if(NOT MSVC)
    add_executable(tcm_min_asserts_unittest
            src/tests/tcmalloc_unittest.cc
            src/tests/testutil.cc)
    target_compile_definitions(tcm_min_asserts_unittest PUBLIC NO_TCMALLOC_SAMPLES NO_HEAP_CHECK)
    target_link_libraries(tcm_min_asserts_unittest tcmalloc_minimal Threads::Threads)
    add_test(tcm_min_asserts_unittest tcm_min_asserts_unittest)
  endif()

  add_executable(tcmalloc_minimal_large_unittest
          src/tests/tcmalloc_large_unittest.cc
          src/tests/testutil.cc
          src/tests/testutil.h)
  target_link_libraries(tcmalloc_minimal_large_unittest tcmalloc_minimal Threads::Threads)
  add_test(tcmalloc_minimal_large_unittest tcmalloc_minimal_large_unittest)

  add_executable(tcmalloc_minimal_large_heap_fragmentation_unittest
          src/tests/large_heap_fragmentation_unittest.cc)
  target_link_libraries(
          tcmalloc_minimal_large_heap_fragmentation_unittest PUBLIC tcmalloc_minimal)
  add_test(tcmalloc_minimal_large_heap_fragmentation_unittest tcmalloc_minimal_large_heap_fragmentation_unittest)

  add_library(gtest STATIC vendor/googletest/googletest/src/gtest_main.cc
    vendor/googletest/googletest/src/gtest-assertion-result.cc
    vendor/googletest/googletest/src/gtest-death-test.cc
    vendor/googletest/googletest/src/gtest-filepath.cc
    vendor/googletest/googletest/src/gtest-matchers.cc
    vendor/googletest/googletest/src/gtest-port.cc
    vendor/googletest/googletest/src/gtest-printers.cc
    vendor/googletest/googletest/src/gtest-test-part.cc
    vendor/googletest/googletest/src/gtest-typed-test.cc
    vendor/googletest/googletest/src/gtest.cc)
  target_include_directories(gtest PRIVATE
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/vendor/googletest/googletest>
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/vendor/googletest/googletest/include>)

  target_include_directories(gtest INTERFACE
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/vendor/googletest/googletest/include>)

  add_executable(addressmap_unittest
          src/tests/addressmap_unittest.cc
          src/addressmap-inl.h
          ${MAYBE_PORT_CC})
  target_link_libraries(addressmap_unittest logging gtest)
  add_test(addressmap_unittest addressmap_unittest)

  if(NOT MINGW AND NOT MSVC)
    add_executable(system_alloc_unittest src/tests/system-alloc_unittest.cc)
    target_link_libraries(system_alloc_unittest PUBLIC tcmalloc_minimal)
    add_test(system_alloc_unittest system_alloc_unittest)

    add_executable(unique_path_unittest src/tests/unique_path_unittest.cc)
    target_link_libraries(unique_path_unittest PRIVATE sysinfo logging gtest)
    add_test(unique_path_unittest unique_path_unittest)
  endif()

  add_executable(packed_cache_test src/tests/packed-cache_test.cc src/internal_logging.cc)
  target_link_libraries(packed_cache_test logging sysinfo spinlock gtest)
  add_test(packed_cache_test packed_cache_test)

  add_executable(frag_unittest src/tests/frag_unittest.cc)
  target_link_libraries(frag_unittest PUBLIC tcmalloc_minimal)
  add_test(frag_unittest frag_unittest)

  add_executable(markidle_unittest
          src/tests/markidle_unittest.cc
          src/tests/testutil.cc)
  target_link_libraries(markidle_unittest tcmalloc_minimal Threads::Threads)
  add_test(markidle_unittest markidle_unittest)

  add_executable(current_allocated_bytes_test
          src/tests/current_allocated_bytes_test.cc)
  target_link_libraries(current_allocated_bytes_test PUBLIC tcmalloc_minimal)
  add_test(current_allocated_bytes_test current_allocated_bytes_test)

  add_executable(malloc_hook_test
          src/tests/malloc_hook_test.cc
          src/tests/testutil.cc)
  target_link_libraries(malloc_hook_test tcmalloc_minimal Threads::Threads gtest)
  add_test(malloc_hook_test malloc_hook_test)

  add_executable(mmap_hook_test
          src/tests/mmap_hook_test.cc
          src/mmap_hook.cc)
  if(MSVC)
    # Work around unresolved symbol from src/windows by linking against the entire library
    target_link_libraries(mmap_hook_test tcmalloc_minimal Threads::Threads gtest)
  else()
    target_link_libraries(mmap_hook_test spinlock sysinfo logging gtest)
  endif()
  add_test(mmap_hook_test mmap_hook_test)

  set(malloc_extension_test_SOURCES src/tests/malloc_extension_test.cc
          src/config_for_unittests.h
          src/base/logging.h
          src/gperftools/malloc_extension.h
          src/gperftools/malloc_extension_c.h)
  set(malloc_extension_test_LIBADD Threads::Threads ${TCMALLOC_FLAGS})
  add_executable(malloc_extension_test ${malloc_extension_test_SOURCES})
  target_link_libraries(malloc_extension_test tcmalloc_minimal ${malloc_extension_test_LIBADD})
  add_test(malloc_extension_test malloc_extension_test)

  if(NOT MSVC)
    add_executable(malloc_extension_c_test src/tests/malloc_extension_c_test.cc)
    target_link_libraries(malloc_extension_c_test PUBLIC
            tcmalloc_minimal)
    add_test(malloc_extension_c_test malloc_extension_c_test)
  endif()

  if(NOT MINGW AND NOT MSVC AND NOT APPLE)
    set(memalign_unittest_SOURCES src/tests/memalign_unittest.cc
            src/tcmalloc_internal.h
            src/config_for_unittests.h
            src/tests/testutil.h src/tests/testutil.cc)
    add_executable(memalign_unittest ${memalign_unittest_SOURCES})
    target_link_libraries(memalign_unittest tcmalloc_minimal Threads::Threads)
    add_test(memalign_unittest memalign_unittest)
  endif()

  add_executable(page_heap_test src/tests/page_heap_test.cc)
  if(MSVC OR MINGW)
    # page_heap_test was changed such that it now refers to an unexported symbol.
    # Temporary workaround by linking to the .obj files instead of tcmalloc_minimal.
    # Also see commit e521472 for the VSProj changes.
    target_link_libraries(page_heap_test tcmalloc_minimal spinlock sysinfo logging gtest)
  else()
    target_link_libraries(page_heap_test tcmalloc_minimal gtest)
  endif()
  add_test(page_heap_test page_heap_test)

  add_executable(pagemap_unittest src/tests/pagemap_unittest.cc src/internal_logging.cc)
  target_link_libraries(pagemap_unittest logging gtest)
  add_test(pagemap_unittest pagemap_unittest)

  add_executable(safe_strerror_test src/tests/safe_strerror_test.cc src/safe_strerror.cc)
  target_link_libraries(safe_strerror_test logging gtest)
  add_test(safe_strerror_test safe_strerror_test)

  add_executable(cleanup_test src/tests/cleanup_test.cc)
  target_link_libraries(cleanup_test gtest)
  add_test(cleanup_test cleanup_test)

  add_executable(function_ref_test src/tests/function_ref_test.cc)
  target_link_libraries(function_ref_test gtest)
  add_test(function_ref_test function_ref_test)

  add_executable(generic_writer_test src/tests/generic_writer_test.cc ${MAYBE_PORT_CC})
  target_link_libraries(generic_writer_test logging gtest)
  add_test(generic_writer_test generic_writer_test)

  add_executable(proc_maps_iterator_test src/tests/proc_maps_iterator_test.cc ${MAYBE_PORT_CC})
  target_link_libraries(proc_maps_iterator_test sysinfo logging gtest)
  add_test(proc_maps_iterator_test proc_maps_iterator_test)

  set(realloc_unittest_SOURCES src/tests/realloc_unittest.cc
          src/config_for_unittests.h
          src/base/logging.h)
  set(realloc_unittest_LDFLAGS Threads::Threads ${TCMALLOC_FLAGS})
  add_executable(realloc_unittest ${realloc_unittest_SOURCES})
  target_link_libraries(realloc_unittest PUBLIC tcmalloc_minimal ${realloc_unittest_LDFLAGS})
  add_test(realloc_unittest realloc_unittest)

  add_executable(stack_trace_table_test src/tests/stack_trace_table_test.cc)
  target_link_libraries(stack_trace_table_test PUBLIC tcmalloc_minimal gtest)
  add_test(stack_trace_table_test stack_trace_table_test)

  add_executable(thread_dealloc_unittest
          src/tests/thread_dealloc_unittest.cc
          src/tests/testutil.cc)
  target_link_libraries(thread_dealloc_unittest tcmalloc_minimal Threads::Threads)
  add_test(thread_dealloc_unittest thread_dealloc_unittest)
endif()

### ------- tcmalloc_minimal_debug (thread-caching malloc with debugallocation)

if(GPERFTOOLS_BUILD_DEBUGALLOC)
  set(libtcmalloc_minimal_debug_la_SOURCES src/debugallocation.cc
          ${TCMALLOC_MINIMAL_INCLUDES})
  add_library(tcmalloc_minimal_debug SHARED ${libtcmalloc_minimal_debug_la_SOURCES})
  target_compile_definitions(tcmalloc_minimal_debug PRIVATE ${libtcmalloc_minimal_la_DEFINES}
          TCMALLOC_FOR_DEBUGALLOCATION)
  target_link_libraries(tcmalloc_minimal_debug PRIVATE ${libtcmalloc_minimal_la_LIBADD})
  target_link_libraries(tcmalloc_minimal_debug PRIVATE Threads::Threads)
  install(TARGETS tcmalloc_minimal_debug)
  set_target_properties(tcmalloc_minimal_debug PROPERTIES
          VERSION ${TCMALLOC_SO_VERSION}
          SOVERSION ${TCMALLOC_SO_VERSION})
  if(GPERFTOOLS_BUILD_STATIC)
    add_library(tcmalloc_minimal_debug_static STATIC ${libtcmalloc_minimal_debug_la_SOURCES})
    target_compile_definitions(tcmalloc_minimal_debug_static PRIVATE ${libtcmalloc_minimal_la_DEFINES}
            TCMALLOC_FOR_DEBUGALLOCATION)
    if(NOT MSVC)
      set_target_properties(tcmalloc_minimal_debug_static PROPERTIES
              OUTPUT_NAME tcmalloc_minimal_debug)
    endif()
    target_link_libraries(tcmalloc_minimal_debug_static PRIVATE ${libtcmalloc_minimal_la_LIBADD})
    install(TARGETS tcmalloc_minimal_debug_static)
  endif()

  ### Unittests

  if(BUILD_TESTING)
    add_executable(tcmalloc_minimal_debug_unittest ${tcmalloc_minimal_unittest_SOURCES})
    target_compile_definitions(tcmalloc_minimal_debug_unittest PRIVATE DEBUGALLOCATION)
    target_link_libraries(tcmalloc_minimal_debug_unittest tcmalloc_minimal_debug ${tcmalloc_minimal_unittest_LDADD})
    add_test(tcmalloc_minimal_debug_unittest tcmalloc_minimal_debug_unittest)

    add_executable(malloc_extension_debug_test ${malloc_extension_test_SOURCES})
    target_link_libraries(malloc_extension_debug_test tcmalloc_minimal_debug ${malloc_extension_test_LIBADD})
    add_test(malloc_extension_debug_test malloc_extension_debug_test)

    if(NOT MINGW AND NOT APPLE)
      add_executable(memalign_debug_unittest ${memalign_unittest_SOURCES})
      target_link_libraries(memalign_debug_unittest
              tcmalloc_minimal_debug Threads::Threads)
      add_test(memalign_debug_unittest memalign_debug_unittest)
    endif()

    add_executable(realloc_debug_unittest ${realloc_unittest_SOURCES})
    target_link_libraries(realloc_debug_unittest PUBLIC tcmalloc_minimal_debug)
    add_test(realloc_debug_unittest realloc_debug_unittest)

    if(WITH_STACK_TRACE)
      add_executable(debugallocation_test src/tests/debugallocation_test.cc)
      target_link_libraries(debugallocation_test PUBLIC tcmalloc_minimal_debug Threads::Threads)

      add_test(NAME debugallocation_test
              COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/src/tests/debugallocation_test.sh)
    endif()
  endif()
endif()

if(NOT MINGW AND NOT MSVC)
  if(gperftools_build_benchmark)
    add_library(run_benchmark benchmark/run_benchmark.cc)

    add_executable(malloc_bench benchmark/malloc_bench.cc)
    target_link_libraries(malloc_bench run_benchmark ${TCMALLOC_FLAGS})
    if(GPERFTOOLS_BUILD_STATIC)
      target_link_libraries(malloc_bench tcmalloc_minimal_static)
    else()
      target_link_libraries(malloc_bench tcmalloc_minimal)
    endif()
    add_executable(malloc_bench_shared benchmark/malloc_bench.cc)
    target_link_libraries(malloc_bench_shared run_benchmark tcmalloc_minimal ${TCMALLOC_FLAGS} Threads::Threads)

    if(GPERFTOOLS_BUILD_HEAP_CHECKER OR GPERFTOOLS_BUILD_HEAP_PROFILER)
      add_executable(malloc_bench_shared_full benchmark/malloc_bench.cc)
      target_link_libraries(malloc_bench_shared_full run_benchmark tcmalloc ${TCMALLOC_FLAGS} Threads::Threads)
    endif()

    add_executable(binary_trees benchmark/binary_trees.cc)
    target_link_libraries(binary_trees Threads::Threads ${TCMALLOC_FLAGS})
    if(GPERFTOOLS_BUILD_STATIC)
      target_link_libraries(binary_trees tcmalloc_minimal_static)
    else()
      target_link_libraries(binary_trees tcmalloc_minimal)
    endif()
    add_executable(binary_trees_shared benchmark/binary_trees.cc)
    target_link_libraries(binary_trees_shared tcmalloc_minimal Threads::Threads ${TCMALLOC_FLAGS})
  endif()
endif()

### ------- tcmalloc (thread-caching malloc + heap profiler + heap checker)

if(GPERFTOOLS_BUILD_HEAP_CHECKER OR GPERFTOOLS_BUILD_HEAP_PROFILER)
  ### The header files we use.  We divide into categories based on directory
  set(S_TCMALLOC_INCLUDES ${S_TCMALLOC_MINIMAL_INCLUDES}
          ${LOGGING_INCLUDES}
          src/addressmap-inl.h
          src/base/googleinit.h
          src/base/linuxthreads.h
          src/base/stl_allocator.h
          src/base/sysinfo.h
          src/heap-profile-table.h
          src/heap-profile-stats.h
          src/maybe_emergency_malloc.h
          src/mmap_hook.h
          src/emergency_malloc.h)

  set(SG_TCMALLOC_INCLUDES src/gperftools/heap-profiler.h
          src/gperftools/heap-checker.h)
  set(TCMALLOC_INCLUDES ${S_TCMALLOC_INCLUDES} ${SG_TCMALLOC_MINIMAL_INCLUDES}
          ${SG_TCMALLOC_INCLUDES} ${SG_STACKTRACE_INCLUDES})
  list(APPEND perftoolsinclude_HEADERS ${SG_TCMALLOC_INCLUDES})

  if(gperftools_emergency_malloc)
    set(EMERGENCY_MALLOC_CC
            src/emergency_malloc.cc)
    set(EMERGENCY_MALLOC_DEFINE ENABLE_EMERGENCY_MALLOC)
  else()
    set(EMERGENCY_MALLOC_CC )
  endif()

  ### Making the library

  set(libtcmalloc_internal_la_SOURCES ${libtcmalloc_minimal_internal_la_SOURCES}
          ${TCMALLOC_INCLUDES}
          src/base/low_level_alloc.cc
          src/mmap_hook.cc
          src/heap-profile-table.cc
          src/heap-profiler.cc
          ${EMERGENCY_MALLOC_CC}
          src/memory_region_map.cc)
  set(libtcmalloc_internal_la_DEFINE NDEBUG ${EMERGENCY_MALLOC_DEFINE})
  set(libtcmalloc_internal_la_LIBADD stacktrace Threads::Threads)

  set(libtcmalloc_la_SOURCES ${TCMALLOC_CC} ${TCMALLOC_INCLUDES})
  set(libtcmalloc_la_DEFINE NDEBUG ${EMERGENCY_MALLOC_DEFINE})
  set(libtcmalloc_la_LIBADD tcmalloc_internal Threads::Threads)
  if(GPERFTOOLS_BUILD_HEAP_CHECKER)
    # heap-checker-bcad is last, in hopes its global ctor will run first.
    # (Note this is added to libtcmalloc.la, not libtcmalloc_internal.la,
    # but that's ok; the internal/external distinction is only useful for
    # cygwin, and cygwin doesn't use HEAP_CHECKER anyway.)
    set(HEAP_CHECKER_SOURCES src/base/linuxthreads.cc
            src/heap-checker.cc
            src/heap-checker-bcad.cc)
    list(APPEND libtcmalloc_la_SOURCES ${HEAP_CHECKER_SOURCES})
  else()
    list(APPEND libtcmalloc_internal_la_DEFINE NO_HEAP_CHECK)
    list(APPEND libtcmalloc_la_DEFINE NO_HEAP_CHECK)
  endif()

  add_library(tcmalloc_internal_object OBJECT ${libtcmalloc_internal_la_SOURCES})
  target_compile_definitions(tcmalloc_internal_object PRIVATE ${libtcmalloc_internal_la_DEFINE})
  add_library(tcmalloc_internal INTERFACE)
  target_sources(tcmalloc_internal INTERFACE $<TARGET_OBJECTS:tcmalloc_internal_object>)
  target_link_libraries(tcmalloc_internal INTERFACE ${libtcmalloc_internal_la_LIBADD})

  add_library(tcmalloc SHARED ${libtcmalloc_la_SOURCES})
  target_compile_definitions(tcmalloc PRIVATE ${libtcmalloc_la_DEFINE})
  target_link_libraries(tcmalloc ${libtcmalloc_la_LIBADD})
  set_target_properties(tcmalloc PROPERTIES
          VERSION ${TCMALLOC_SO_VERSION}
          SOVERSION ${TCMALLOC_SO_VERSION})
  install(TARGETS tcmalloc)
  if(GPERFTOOLS_BUILD_STATIC)
    add_library(tcmalloc_static STATIC ${libtcmalloc_la_SOURCES})
    target_compile_definitions(tcmalloc_static PRIVATE ${libtcmalloc_la_DEFINE})
    if(NOT MSVC)
      set_target_properties(tcmalloc_static PROPERTIES OUTPUT_NAME tcmalloc)
    endif()
    target_link_libraries(tcmalloc_static PRIVATE ${libtcmalloc_la_LIBADD})
    install(TARGETS tcmalloc_static)
  endif()

  ### Unittests
  if(BUILD_TESTING)
    set(TCMALLOC_UNITTEST_INCLUDES src/config_for_unittests.h
            src/gperftools/malloc_extension.h)
    set(tcmalloc_unittest_SOURCES src/tests/tcmalloc_unittest.cc
            src/tcmalloc_internal.h
            src/tests/testutil.h src/tests/testutil.cc
            ${TCMALLOC_UNITTEST_INCLUDES})
    set(tcmalloc_unittest_LIBADD ${TCMALLOC_FLAGS} logging Threads::Threads)
    add_executable(tcmalloc_unittest ${tcmalloc_unittest_SOURCES})
    target_link_libraries(tcmalloc_unittest tcmalloc ${tcmalloc_unittest_LIBADD})
    add_test(NAME tcmalloc_unittest
            COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/src/tests/tcmalloc_unittest.sh")

    # This makes sure it's safe to link in both tcmalloc and
    # tcmalloc_minimal.  (One would never do this on purpose, but perhaps
    # by accident...)  When we can compile libprofiler, we also link it in
    # to make sure that works too.  NOTE: On OS X, it's *not* safe to
    # link both in (we end up with two copies of every global var, and
    # the code tends to pick one arbitrarily), so don't run the test there.
    set(tcmalloc_both_unittest_srcs src/tests/tcmalloc_unittest.cc
            src/tests/testutil.h src/tests/testutil.cc
            ${TCMALLOC_UNITTEST_INCLUDES})
    if(GPERFTOOLS_BUILD_CPU_PROFILER)
      set(tcmalloc_both_unittest_ladd tcmalloc tcmalloc_minimal profiler logging Threads::Threads)
    else()
      set(tcmalloc_both_unittest_ladd tcmalloc tcmalloc_minimal logging Threads::Threads)
    endif()
    if(NOT APPLE)
      add_executable(tcmalloc_both_unittest ${tcmalloc_both_unittest_srcs})
      target_link_libraries(tcmalloc_both_unittest ${TCMALLOC_FLAGS} ${tcmalloc_both_unittest_ladd})
      add_test(tcmalloc_both_unittest tcmalloc_both_unittest)
    endif()

    add_executable(tcmalloc_large_unittest src/tests/tcmalloc_large_unittest.cc)
    target_link_libraries(tcmalloc_large_unittest tcmalloc Threads::Threads)
    add_test(tcmalloc_large_unittest tcmalloc_large_unittest)

    add_executable(tcmalloc_large_heap_fragmentation_unittest src/tests/large_heap_fragmentation_unittest.cc)
    target_link_libraries(tcmalloc_large_heap_fragmentation_unittest tcmalloc Threads::Threads)
    add_test(tcmalloc_large_heap_fragmentation_unittest tcmalloc_large_heap_fragmentation_unittest)

    # sampler_test and sampling_test both require sampling to be turned
    # on, which it's not by default.  Use the "standard" value of 2^19.
    list(APPEND TESTS_ENVIRONMENT TCMALLOC_SAMPLE_PARAMETER=524288)

    add_executable(sampler_test src/tests/sampler_test.cc src/sampler.cc)
    target_link_libraries(sampler_test gtest Threads::Threads m)
    add_test(sampler_test sampler_test)

    # These unittests often need to run binaries.  They're in the current dir
    list(APPEND TESTS_ENVIRONMENT BINDIR=. TMPDIR=/tmp/perftools)
    set(SAMPLING_TEST_INCLUDES src/config_for_unittests.h
            src/base/logging.h
            src/gperftools/malloc_extension.h)
    set(sampling_test_SOURCES src/tests/sampling_test.cc
            ${SAMPLING_TEST_INCLUDES})
    add_executable(sampling_test ${sampling_test_SOURCES})
    target_link_libraries(sampling_test ${TCMALLOC_FLAGS} tcmalloc Threads::Threads)
    add_test(NAME sampling_test.sh
            COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/src/tests/sampling_test.sh" sampling_test)
    if(GPERFTOOLS_BUILD_HEAP_PROFILER)
      set(HEAP_PROFILER_UNITTEST_INCLUDES src/config_for_unittests.h
              src/gperftools/heap-profiler.h)
      set(heap_profiler_unittest_SOURCES src/tests/heap-profiler_unittest.cc
              ${HEAP_PROFILER_UNITTEST_INCLUDES})
      add_executable(heap_profiler_unittest ${heap_profiler_unittest_SOURCES})
      target_link_libraries(heap_profiler_unittest ${TCMALLOC_FLAGS} tcmalloc Threads::Threads)
      add_test(NAME heap-profiler_unittest.sh
              COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/src/tests/heap-profiler_unittest.sh" heap-profiler_unittest)
    endif()
    if(GPERFTOOLS_BUILD_HEAP_CHECKER)
      set(HEAP_CHECKER_UNITTEST_INCLUDES src/config_for_unittests.h
              src/memory_region_map.h
              src/base/commandlineflags.h
              src/base/googleinit.h
              src/gperftools/heap-checker.h
              ${LOGGING_INCLUDES})
      set(heap_checker_unittest_SOURCES src/tests/heap-checker_unittest.cc
              ${HEAP_CHECKER_UNITTEST_INCLUDES})
      add_executable(heap_checker_unittest ${heap_checker_unittest_SOURCES})
      target_link_libraries(heap_checker_unittest ${TCMALLOC_FLAGS} tcmalloc logging Threads::Threads)
      add_test(heap-checker_unittest heap_checker_unittest)
      add_test(NAME heap-checker-death_unittest.sh
              COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/src/tests/heap-checker-death_unittest.sh")
endif()
  endif()

endif()

### ------- tcmalloc with debugallocation
if(GPERFTOOLS_BUILD_DEBUGALLOC)
  if(GPERFTOOLS_BUILD_HEAP_CHECKER OR GPERFTOOLS_BUILD_HEAP_PROFILER)
    add_library(tcmalloc_debug SHARED src/debugallocation.cc ${HEAP_CHECKER_SOURCES} ${TCMALLOC_INCLUDES})
    target_compile_definitions(tcmalloc_debug PRIVATE ${libtcmalloc_la_DEFINE}
            TCMALLOC_FOR_DEBUGALLOCATION)
    target_link_libraries(tcmalloc_debug PRIVATE ${libtcmalloc_la_LIBADD})
    set_target_properties(tcmalloc_debug PROPERTIES
            VERSION ${TCMALLOC_SO_VERSION}
            SOVERSION ${TCMALLOC_SO_VERSION})
    install(TARGETS tcmalloc_debug)
    if(GPERFTOOLS_BUILD_STATIC)
      add_library(tcmalloc_debug_static STATIC src/debugallocation.cc ${HEAP_CHECKER_SOURCES} ${TCMALLOC_INCLUDES})
      target_compile_definitions(tcmalloc_debug_static PRIVATE ${libtcmalloc_la_DEFINE}
              TCMALLOC_FOR_DEBUGALLOCATION)
      target_link_libraries(tcmalloc_debug_static PRIVATE ${libtcmalloc_la_LIBADD})
      if(NOT MSVC)
        set_target_properties(tcmalloc_debug_static PROPERTIES
                OUTPUT_NAME tcmalloc_debug)
      endif()
      install(TARGETS tcmalloc_debug_static)
    endif()

    ### Unittests
    if(BUILD_TESTING)
      add_executable(tcmalloc_debug_unittest ${tcmalloc_unittest_SOURCES})
      target_compile_definitions(tcmalloc_debug_unittest PRIVATE DEBUGALLOCATION ${tcmalloc_unittest})
      target_link_libraries(tcmalloc_debug_unittest tcmalloc_debug ${tcmalloc_unittest_LIBADD})
      add_test(tcmalloc_debug_unittest tcmalloc_debug_unittest)

      add_executable(sampling_debug_test ${sampling_test_SOURCES})
      target_link_libraries(sampling_debug_test ${TCMALLOC_FLAGS} tcmalloc_debug Threads::Threads)
      add_test(sampling_debug_test.sh "${CMAKE_CURRENT_SOURCE_DIR}/src/tests/sampling_test.sh" sampling_debug_test)

      if(GPERFTOOLS_BUILD_HEAP_PROFILER)
        add_executable(heap_profiler_debug_unittest ${heap_profiler_unittest_SOURCES})
        target_link_libraries(heap_profiler_debug_unittest ${TCMALLOC_FLAGS} tcmalloc_debug Threads::Threads)
        add_test(heap-profiler_debug_unittest.sh "${CMAKE_CURRENT_SOURCE_DIR}/src/tests/heap-profiler_unittest.sh" heap-profiler_debug_unittest)
      endif()
      if(GPERFTOOLS_BUILD_HEAP_CHECKER)
        add_executable(heap_checker_debug_unittest ${heap_checker_unittest_SOURCES})
        target_link_libraries(heap_checker_debug_unittest ${TCMALLOC_FLAGS} tcmalloc_debug logging Threads::Threads)
        add_test(heap_checker_debug_unittest heap_checker_debug_unittest)
      endif()
    endif()
  endif()
endif()

### ------- CPU profiler
if(GPERFTOOLS_BUILD_CPU_PROFILER)
  ### The header files we use.  We divide into categories based on directory
  set(S_CPU_PROFILER_INCLUDES src/profiledata.h
          src/profile-handler.h
          src/getpc.h
          src/base/threading.h
          src/base/basictypes.h
          src/base/commandlineflags.h
          src/base/googleinit.h
          src/base/logging.h
          src/base/sysinfo.h
          ${SPINLOCK_INCLUDES}
          ${LOGGING_INCLUDES})
  set(SG_CPU_PROFILER_INCLUDES src/gperftools/profiler.h)
  set(CPU_PROFILER_INCLUDES ${S_CPU_PROFILER_INCLUDES} ${SG_CPU_PROFILER_INCLUDES}
          ${SG_STACKTRACE_INCLUDES})
  list(APPEND perftoolsinclude_HEADERS ${SG_CPU_PROFILER_INCLUDES})

  ### Making the library
  set(libprofiler_la_SOURCES src/profiler.cc
          src/profile-handler.cc
          src/profiledata.cc
          ${CPU_PROFILER_INCLUDES})
  set(libprofiler_la_LIBADD stacktrace)
  add_library(profiler SHARED ${libprofiler_la_SOURCES})
  target_link_libraries(profiler PRIVATE ${libprofiler_la_LIBADD})
  target_link_libraries(profiler PRIVATE Threads::Threads)
  set_target_properties(profiler PROPERTIES
          VERSION ${PROFILER_SO_VERSION}
          SOVERSION ${PROFILER_SO_VERSION})
  install(TARGETS profiler)
  if(GPERFTOOLS_BUILD_STATIC)
    add_library(profiler_static STATIC ${libprofiler_la_SOURCES})
    target_link_libraries(profiler_static PRIVATE ${libprofiler_la_LIBADD})
    if(NOT MSVC)
      set_target_properties(profiler_static PROPERTIES OUTPUT_NAME profiler)
    endif()
    install(TARGETS profiler_static)
  endif()

  # See discussion above (under LIBTCMALLOC_MINIMAL) for why we do this.
  # Basically it's to work around systems where --rpath doesn't work right.
  set(LIBPROFILER stacktrace profiler)

  if(BUILD_TESTING)
    add_executable(getpc_test src/tests/getpc_test.cc src/getpc.h)
    add_test(getpc_test getpc_test)

    add_executable(profiledata_unittest src/tests/profiledata_unittest.cc
            src/profiledata.h
            src/base/commandlineflags.h
            src/base/logging.h
            src/base/threading.h
            src/base/basictypes.h)
    target_link_libraries(profiledata_unittest ${LIBPROFILER})
    add_test(profiledata_unittest profiledata_unittest)

    add_executable(profile_handler_unittest src/tests/profile-handler_unittest.cc
            src/profile-handler.h)
    target_link_libraries(profile_handler_unittest ${LIBPROFILER} Threads::Threads gtest)
    add_test(profile_handler_unittest profile_handler_unittest)

    add_test(NAME profiler_unittest.sh
            COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/src/tests/profiler_unittest.sh")
    set(PROFILER_UNITTEST_INCLUDES src/config_for_unittests.h
            src/gperftools/profiler.h)
    set(PROFILER_UNITTEST_SRCS src/tests/profiler_unittest.cc
            src/tests/testutil.h src/tests/testutil.cc
            ${PROFILER_UNITTEST_INCLUDES})
    add_executable(profiler1_unittest ${PROFILER_UNITTEST_SRCS})
    target_compile_definitions(profiler1_unittest PRIVATE NO_THREADS)
    target_link_libraries(profiler1_unittest ${LIBPROFILER})
    add_executable(profiler2_unittest ${PROFILER_UNITTEST_SRCS})
    target_compile_definitions(profiler2_unittest PRIVATE NO_THREADS)
    target_link_libraries(profiler2_unittest stacktrace profiler)
    add_executable(profiler3_unittest ${PROFILER_UNITTEST_SRCS})
    target_link_libraries(profiler3_unittest ${LIBPROFILER} Threads::Threads)
    add_executable(profiler4_unittest ${PROFILER_UNITTEST_SRCS})
    target_link_libraries(profiler4_unittest stacktrace profiler Threads::Threads)
  endif()
endif()

install(FILES
${CMAKE_CURRENT_BINARY_DIR}/gperftools/tcmalloc.h
        ${perftoolsinclude_HEADERS}
        DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/gperftools)

### ------- CPU profiler and heap checker, in one!

# Ideally, folks who wanted to use both tcmalloc and libprofiler,
# could just link them both into their application.  But while this
# works fine for .so files, it does not for .a files.  The easiest way
# around this -- and I've tried a bunch of the hard ways -- is to just
# to create another set of libraries that has both functionality in it.

if(GPERFTOOLS_BUILD_HEAP_PROFILER OR GPERFTOOLS_BUILD_HEAP_CHECKER)
    if(GPERFTOOLS_BUILD_CPU_PROFILER)
      add_library(tcmalloc_and_profiler SHARED ${libtcmalloc_la_SOURCES} ${libprofiler_la_SOURCES})
      target_compile_definitions(tcmalloc_and_profiler PRIVATE ${libtcmalloc_la_DEFINE})
      set_target_properties(tcmalloc_and_profiler PROPERTIES
              VERSION ${TCMALLOC_AND_PROFILER_SO_VERSION}
              SOVERSION ${TCMALLOC_AND_PROFILER_SO_VERSION})
      # We don't include libprofiler_la_LIBADD here because all it adds is
      # libstacktrace.la, which we already get via libtcmalloc.  Trying to
      # specify it twice causes link-time duplicate-definition errors. :-(
      target_link_libraries(tcmalloc_and_profiler PRIVATE ${libtcmalloc_la_LIBADD})
      install(TARGETS tcmalloc_and_profiler)
      if(GPERFTOOLS_BUILD_STATIC)
        add_library(tcmalloc_and_profiler_static STATIC ${libtcmalloc_la_SOURCES} ${libprofiler_la_SOURCES})
        target_compile_definitions(tcmalloc_and_profiler_static PRIVATE ${libtcmalloc_la_DEFINE})
        target_link_libraries(tcmalloc_and_profiler_static PRIVATE ${libtcmalloc_la_LIBADD})
        if(NOT MSVC)
          set_target_properties(tcmalloc_and_profiler_static PROPERTIES
                  OUTPUT_NAME tcmalloc_and_profiler)
        endif()
        install(TARGETS tcmalloc_and_profiler_static)
      endif()

      if(BUILD_TESTING)
        add_executable(tcmalloc_and_profiler_unittest ${tcmalloc_both_unittest_srcs})
        target_link_libraries(tcmalloc_and_profiler_unittest tcmalloc_and_profiler Threads::Threads)
        add_test(tcmalloc_and_profiler_unittest tcmalloc_and_profiler_unittest)
      endif()
    endif()
endif()

if(BUILD_TESTING)
  get_directory_property(tests TESTS)
  message("TESTS_ENVIRONMENT:${TESTS_ENVIRONMENT}")
  if(TESTS_ENVIRONMENT)
    foreach(test IN LISTS tests)
      set_tests_properties(${test} PROPERTIES ENVIRONMENT "${TESTS_ENVIRONMENT}")
    endforeach()
  endif()
endif()

if(MSVC)
    add_subdirectory(src/windows)
endif()

## ^^^^ END OF RULES TO MAKE YOUR LIBRARIES, BINARIES, AND UNITTESTS
#TODO rpm deb

# http://linux.die.net/man/1/pkg-config, http://pkg-config.freedesktop.org/wiki
# I get the description and URL lines from the rpm spec. I use sed to
# try to rewrite exec_prefix, libdir, and includedir in terms of
# prefix, if possible.
set(PTHREAD_FLAGS)
foreach(flag IN ITEMS INTERFACE_LINK_LIBRARIES INTERFACE_LINK_OPTIONS INTERFACE_INCLUDE_DIRECTORIES INTERFACE_COMPILE_OPTIONS INTERFACE_COMPILE_DEFINITIONS INTERFACE_SOURCES)
  get_target_property(T Threads::Threads ${flag})
  if(T)
    set(PTHREAD_FLAGS "${PTHREAD_FLAGS} ${T}")
  endif()
endforeach()
set(NAME tcmalloc)
configure_file(cmake/pkgconfig.pc libtcmalloc.pc @ONLY)
set(NAME tcmalloc_debug)
configure_file(cmake/pkgconfig.pc libtcmalloc_debug.pc @ONLY)
set(NAME tcmalloc_minimal)
configure_file(cmake/pkgconfig.pc libtcmalloc_minimal.pc @ONLY)
set(NAME tcmalloc_minimal_debug)
configure_file(cmake/pkgconfig.pc libtcmalloc_minimal_debug.pc @ONLY)
set(NAME profiler)
configure_file(cmake/pkgconfig.pc libprofiler.pc @ONLY)
install(FILES
        ${CMAKE_CURRENT_BINARY_DIR}/libtcmalloc.pc
        ${CMAKE_CURRENT_BINARY_DIR}/libtcmalloc_minimal.pc
        ${CMAKE_CURRENT_BINARY_DIR}/libtcmalloc_debug.pc
        ${CMAKE_CURRENT_BINARY_DIR}/libtcmalloc_minimal_debug.pc
        ${CMAKE_CURRENT_BINARY_DIR}/libprofiler.pc
        DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")

message(WARNING "note: gperftools' cmake support is incomplete and is best-effort only")

#TODO @GENERATE_CHANGELOG_RULES@
#TODO dist