#

#  Copyright (C) 2014 - 2019 Intel Corporation.

#  All rights reserved.

#

#  Redistribution and use in source and binary forms, with or without

#  modification, are permitted provided that the following conditions are met:

#  1. Redistributions of source code must retain the above copyright notice(s),

#     this list of conditions and the following disclaimer.

#  2. Redistributions in binary form must reproduce the above copyright notice(s),

#     this list of conditions and the following disclaimer in the documentation

#     and/or other materials provided with the distribution.

#

#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY EXPRESS

#  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO

#  EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY DIRECT, INDIRECT,

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#  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE

#  OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#

#                                               -*- Autoconf -*-

# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.63])

AC_INIT([memkind],m4_esyscmd([tr -d '\n' < VERSION]))

AC_CONFIG_MACRO_DIR([m4])

AC_CONFIG_HEADERS([config.h])

AC_CONFIG_SRCDIR([memkind.spec.mk])

AM_INIT_AUTOMAKE([-Wall -Werror foreign 1.11 silent-rules subdir-objects parallel-tests tar-pax])

AM_SILENT_RULES([yes])

# Checks for programs and libraries.

m4_ifdef([AM_PROG_AR], [AM_PROG_AR])

AC_PROG_CXX

AC_PROG_CC

AC_OPENMP

AC_CHECK_LIB(numa, numa_available, [], [AC_MSG_ERROR([libnuma is required dependency])])

AX_PTHREAD([LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" CC="$PTHREAD_CC"],

           [AC_MSG_ERROR([pthreads are required dependency])])

AM_PROG_CC_C_O

#============================tls===============================================

# Check for thread local storage support

AC_ARG_ENABLE([tls],

  [AS_HELP_STRING([--enable-tls], [Enable thread-local storage (__thread keyword)])],

[if test "x$enable_tls" = "xyes" ; then

  enable_tls="1"

else

  enable_tls="0"

fi

],

[enable_tls="0"]

)

if test "x${enable_tls}" = "x1" ; then

AC_MSG_CHECKING([for TLS support])

AC_COMPILE_IFELSE([AC_LANG_PROGRAM(

[[

    __thread int x;

]], [[

    x = 1234;

]])],

    AC_MSG_RESULT([yes]),

    AC_MSG_RESULT([no])

    enable_tls="0")

fi

if test "x${enable_tls}" = "x1" ; then

  AC_DEFINE([MEMKIND_TLS], [ ], [Enables TLS usage for mapping arenas to threads])

fi

AC_SUBST([enable_tls])

#============================decorators========================================

AC_ARG_ENABLE([decorators],

  [AS_HELP_STRING([--enable-decorators], [Enable decorators])],

[if test "x$enable_decorators" = "xyes" ; then

  enable_decorators="1"

else

  enable_decorators="0"

fi

],

[enable_decorators="0"]

)

if test "x${enable_decorators}" = "x1" ; then

  AC_DEFINE([MEMKIND_DECORATION_ENABLED], [ ], [Enables decorators])

fi

AC_SUBST([enable_decorators])

#============================debug=============================================

AC_ARG_ENABLE([debug],

  [AS_HELP_STRING([--enable-debug], [Build debugging code and compile with -O0 -g])],

[if test "x$enable_debug" = "xno" ; then

  enable_debug="0"

else

  enable_debug="1"

fi

],

[enable_debug="0"]

)

if test "x$enable_debug" = "x1" ; then

  AC_DEFINE([MEMKIND_DEBUG], [ ], [Enables code for debugging])

  CFLAGS="$CFLAGS -O0 -g"

  CXXFLAGS="$CXXFLAGS -O0 -g"

fi

AC_SUBST([enable_debug])

#============================gcov==============================================

AC_ARG_ENABLE([gcov],

  [AS_HELP_STRING([--enable-gcov], [Build code with gcov instructions])],

[if test "x$enable_gcov" = "xno" ; then

  enable_gcov="0"

else

  enable_gcov="1"

fi

],

[enable_gcov="0"]

)

if test "x$enable_gcov" = "x1" ; then

  CFLAGS="$CFLAGS -O0 -fprofile-arcs -ftest-coverage"

  CXXFLAGS="$CXXFLAGS -O0 -fprofile-arcs -ftest-coverage"

fi

AC_SUBST([enable_gcov])

#============================secure_flags======================================

AC_ARG_ENABLE([secure],

  [AS_HELP_STRING([--enable-secure], [Build library with security enchantments])],

[if test "x$enable_secure" = "xno" ; then

  enable_secure="0"

else

  enable_secure="1"

fi

],

[enable_secure="1"]

)

if test "x$enable_secure" = "x1" ; then

  CFLAGS="$CFLAGS -fstack-protector"

  LDFLAGS="$LDFLAGS -Wl,-z,relro,-z,now"

  if test "$CFLAGS" != "${CFLAGS%-O0*}" ; then # if CFLAGS contains -O0

      echo "WARNING: Could not apply FORTIFY_SOURCE=2 due to lack of optimization (-O0)"

  else

      CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2" #FORTITFY_SOURCE does not work with -O0 (ex. if enable_debug=1 or enable_gcov=1)

  fi

fi

AC_SUBST([enable_secure])

#============================tcache_max_size_class======================

tcache_max_size_class=12;

AC_DEFINE_UNQUOTED([JEMALLOC_TCACHE_CLASS], $tcache_max_size_class,

  [Maximum size class (log base 2) to cache in jemalloc tcache])

AC_SUBST(tcache_max_size_class)

#============================auto_arenas================================

auto_arenas=256;

AC_DEFINE_UNQUOTED([ARENA_LIMIT_DEFAULT_KIND], $auto_arenas,

  [Maximum number of automatic managed arenas by jemalloc (used by MEMKIND_DEFAULT)])

AC_SUBST(auto_arenas)

#============================arena_limit=======================================

arena_limit=256;

AC_ARG_VAR(ARENA_LIMIT,

  [Upper bound for number of arenas per kind, if set to 0 then no limit]

)

if test "$ARENA_LIMIT" != "" ; then

  arena_limit=$ARENA_LIMIT;

fi

AC_DEFINE_UNQUOTED([ARENA_LIMIT_PER_KIND], $arena_limit, [Upper bound for number of arenas per kind])

#============================memkind_prefix=======================================

memkind_prefix=jemk_;

AC_ARG_VAR(MEMKIND_PREFIX,

  [Prefix used for all jemalloc public API under memkind, default value jemk_]

)

if test "$MEMKIND_PREFIX" != "" ; then

  memkind_prefix=$MEMKIND_PREFIX;

fi

AC_SUBST(memkind_prefix)

#===============================daxctl=========================================

AC_ARG_ENABLE([daxctl],

  [AS_HELP_STRING([--enable-daxctl], [Build library with daxctl support])],

[if test "x$enable_daxctl" = "xno" ; then

  enable_daxctl="0"

else

  enable_daxctl="1"

fi

],

[enable_daxctl="1"]

)

if test "x$enable_daxctl" = "x1" ; then

    AC_CHECK_LIB(daxctl, daxctl_dev_get_memory, [daxctl_kmem=yes], [daxctl_kmem=no])

fi

if test $daxctl_kmem = "yes" ; then

    AC_DEFINE([MEMKIND_DAXCTL_KMEM], [1], [Automatic recognition of PMEM as system memory in MEMKIND_DAX_KMEM])

    AC_SUBST(DAXCTL_LIBS, [-ldaxctl])

    LDFLAGS="$LDFLAGS -ldaxctl"

fi

AC_SUBST([enable_daxctl])

#============================cxx11=============================================

AX_CXX_COMPILE_STDCXX_11([noext], [optional])

AM_CONDITIONAL([HAVE_CXX11], [test "x$HAVE_CXX11" = x1])

LT_PREREQ([2.2])

LT_INIT

AC_CONFIG_FILES([Makefile memkind.pc])

AC_OUTPUT

AC_MSG_RESULT([=================================================================================])

AC_MSG_RESULT([

               Memkind version $VERSION])

if test $daxctl_kmem = "yes" ; then

AC_MSG_RESULT([

               Automatic recognition of PMEM NUMA in MEMKIND_DAX_KMEM is enabled])

else

AC_MSG_RESULT([

               Automatic recognition of PMEM NUMA in MEMKIND_DAX_KMEM is disabled

               To enable this feature please install libdaxctl-devel v66 or later

               and run configure again])

fi

AC_MSG_RESULT([=================================================================================])