# Copyright (C) 2010 Sun Microsystems, Inc
# 
# 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 

INCLUDE(CheckSymbolExists)
INCLUDE(CheckCSourceRuns)


SET(TARGET_OS_SOLARIS 1)
# Enable 64 bit file offsets
SET(_FILE_OFFSET_BITS 64)

# Legacy option, without it  my_pthread is having problems
ADD_DEFINITIONS(-DHAVE_RWLOCK_T)

# On  Solaris, use of intrinsics will screw the lib search logic
# Force using -lm, so rint etc are found.
SET(LIBM m)

# CMake defined -lthread as thread flag. This crashes in dlopen 
# when trying to load plugins workaround with -lpthread
SET(CMAKE_THREADS_LIBS_INIT -lpthread CACHE INTERNAL "")

# Solaris specific large page support
CHECK_SYMBOL_EXISTS(MHA_MAPSIZE_VA sys/mman.h  HAVE_DECL_MHA_MAPSIZE_VA)
IF(HAVE_DECL_MHA_MAPSIZE_VA)
 SET(HAVE_SOLARIS_LARGE_PAGES 1)
 SET(HAVE_LARGE_PAGE_OPTION 1)
ENDIF()


# Solaris atomics
CHECK_C_SOURCE_RUNS(
 "
 #include  <atomic.h>
  int main()
  {
    int foo = -10; int bar = 10;
    int64_t foo64 = -10; int64_t bar64 = 10;
    if (atomic_add_int_nv((uint_t *)&foo, bar) || foo)
      return -1;
    bar = atomic_swap_uint((uint_t *)&foo, (uint_t)bar);
    if (bar || foo != 10)
     return -1;
    bar = atomic_cas_uint((uint_t *)&bar, (uint_t)foo, 15);
    if (bar)
      return -1;
    if (atomic_add_64_nv((volatile uint64_t *)&foo64, bar64) || foo64)
      return -1;
    bar64 = atomic_swap_64((volatile uint64_t *)&foo64, (uint64_t)bar64);
    if (bar64 || foo64 != 10)
      return -1;
    bar64 = atomic_cas_64((volatile uint64_t *)&bar64, (uint_t)foo64, 15);
    if (bar64)
      return -1;
    atomic_or_64((volatile uint64_t *)&bar64, 0);
    return 0;
  }
"  HAVE_SOLARIS_ATOMIC)