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#
# Copyright (C) 2006, 2009, Innobase Oy. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
# St, Fifth Floor, Boston, MA 02110-1301 USA
#
AC_DEFUN([AC_INNODB_ACTIONS],[
PANDORA_REQUIRE_FLEX
PANDORA_HAVE_LIBAIO
AC_REQUIRE([AC_FUNC_MMAP])
AC_CHECK_LIB(rt, aio_read, [innodb_system_libs="-lrt"])
AC_SUBST(innodb_system_libs)
AC_CHECK_HEADERS(aio.h sched.h)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(void*, 4)
AC_CHECK_FUNCS(sched_yield fdatasync localtime_r pread)
AC_CHECK_FUNCS([uname munmap memchr getpagesize bzero])
AC_C_BIGENDIAN
case "$target_os" in
lin*)
AM_CFLAGS="$AM_CFLAGS -DUNIV_LINUX";;
hpux10*)
AM_CFLAGS="$AM_CFLAGS -DUNIV_MUST_NOT_INLINE -DUNIV_HPUX -DUNIV_HPUX10";;
hp*)
AM_CFLAGS="$AM_CFLAGS -DUNIV_MUST_NOT_INLINE -DUNIV_HPUX";;
aix*)
AM_CFLAGS="$AM_CFLAGS -DUNIV_AIX";;
irix*|osf*|sysv5uw7*|openbsd*)
AM_CFLAGS="$AM_CFLAGS -DUNIV_MUST_NOT_INLINE";;
*solaris*|*SunOS*)
# Begin Solaris atomic function checks
AC_CHECK_FUNCS([atomic_cas_ulong atomic_cas_32 \
atomic_cas_64 atomic_add_long],
[plugin_innodb_have_solaris_atomics=yes],
[plugin_innodb_have_solaris_atomics=no])
AS_IF([test "${plugin_innodb_have_solaris_atomics}" = "yes"],[
AC_DEFINE([HAVE_SOLARIS_ATOMICS],
[1],
[Define to 1 if Solaris supports \
atomic functions.])
])
### End Solaris atomic function checks
AM_CFLAGS="$AM_CFLAGS -DUNIV_SOLARIS";;
esac
INNODB_DYNAMIC_CFLAGS="-DPANDORA_DYNAMIC_PLUGIN"
case "$target_cpu" in
x86_64)
# The AMD64 ABI forbids absolute addresses in shared libraries
;;
*86)
# Use absolute addresses on IA-32
INNODB_DYNAMIC_CFLAGS="$INNODB_DYNAMIC_CFLAGS -prefer-non-pic"
;;
esac
AC_SUBST(INNODB_DYNAMIC_CFLAGS)
AC_CACHE_CHECK([whether pthread_t can be used by GCC atomic builtins],
[ac_cv_plugin_innodb_have_gcc_atomic],[
AC_RUN_IFELSE([
AC_LANG_PROGRAM([[
#include <pthread.h>
#include <string.h>
]],[[
pthread_t x1;
pthread_t x2;
pthread_t x3;
memset(&x1, 0x0, sizeof(x1));
memset(&x2, 0x0, sizeof(x2));
memset(&x3, 0x0, sizeof(x3));
__sync_bool_compare_and_swap(&x1, x2, x3);
]])],
[ac_cv_plugin_innodb_have_gcc_atomic=yes],
[ac_cv_plugin_innodb_have_gcc_atomic=no])
])
AS_IF([test "${ac_cv_plugin_innodb_have_gcc_atomic}" = "yes"],[
AC_DEFINE([HAVE_ATOMIC_PTHREAD_T], [1],
[pthread_t can be used by GCC atomic builtins])
])
AC_CACHE_CHECK(
[whether __attribute__ visibility "hidden" is supported],
[ac_cv_can_use_hidden_],[
AC_LANG_PUSH(C++)
dnl Must be done once we turn on warnings and such
save_CXXFLAGS="${CXXFLAGS}"
CXXFLAGS="${AM_CXXFLAGS} ${CXXFLAGS}"
AC_LINK_IFELSE([
AC_LANG_PROGRAM(
[[
__attribute__((visibility ("hidden")))
void testme() { }
]],[[testme()]]
)],
[ac_cv_can_use_hidden_=yes],
[ac_cv_can_use_hidden_=no])
CXXFLAGS="${save_CXXFLAGS}"
AC_LANG_POP()])
AS_IF([test "$ac_cv_can_use_hidden_" = "yes"],[
AC_DEFINE(HAVE_ATTR_HIDDEN, 1,
[Define to 1 if you have support for __attribute__((visibility("hidden")))])
])
# Try using solaris atomics on SunOS if GCC atomics are not available
AS_IF([test "${ac_cv_plugin_innodb_have_gcc_atomic}" = "yes"],[
AC_MSG_NOTICE([no need to check pthread_t size])
],[
AS_IF([test "${ac_cv_plugin_innodb_have_solaris_atomics}" = "yes"],[
AC_CACHE_CHECK([checking if pthread_t size is integral],
[ac_cv_plugin_innodb_pthread_integral],[
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
#include <pthread.h>
]],[[
pthread_t x = 0;
]])],[
ac_cv_plugin_innodb_pthread_integral=yes
],[
ac_cv_plugin_innodb_pthread_integral=no
])
])
AS_IF([test "${ac_cv_plugin_innodb_pthread_integral}" = "yes"],[
AC_DEFINE([HAVE_ATOMIC_PTHREAD_T], [1],
[pthread_t can be used by solaris atomics])
])
# size of pthread_t is needed for typed solaris atomics
AC_CHECK_SIZEOF([pthread_t], [], [
#include <pthread.h>
])
])
])
# Check for x86 PAUSE instruction
AC_CACHE_CHECK([for x86 PAUSE instruction],[ac_cv_plugin_innodb_has_pause],[
# We have to actually try running the test program, because of a bug
# in Solaris on x86_64, where it wrongly reports that PAUSE is not
# supported when trying to run an application. See
# http://bugs.opensolaris.org/bugdatabase/printableBug.do?bug_id=6478684
# We use ib_ prefix to avoid collisoins if this code is added to
# mysql's configure.in.
AC_RUN_IFELSE([AC_LANG_PROGRAM([[]],[[
__asm__ __volatile__ ("pause");
]])],[
ac_cv_plugin_innodb_has_pause=yes
],[
ac_cv_plugin_innodb_has_pause=no
])
])
AS_IF([test "${ac_cv_plugin_innodb_has_pause}" = "yes"],[
AC_DEFINE([IB_HAVE_PAUSE_INSTRUCTION], [1],
[Does x86 PAUSE instruction exist])
])
])
AC_INNODB_ACTIONS
# vim: set ft=config:
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