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# -*- shell-script -*-
#
# Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
# University Research and Technology
# Corporation. All rights reserved.
# Copyright (c) 2004-2005 The University of Tennessee and The University
# of Tennessee Research Foundation. All rights
# reserved.
# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
# University of Stuttgart. All rights reserved.
# Copyright (c) 2004-2005 The Regents of the University of California.
# All rights reserved.
# Copyright (c) 2008-2010 Cisco Systems, Inc. All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
AC_DEFUN([MCA_memory_linux_COMPILE_MODE], [
AC_MSG_CHECKING([for MCA component $2:$3 compile mode])
$4="static"
AC_MSG_RESULT([$$4])
])
# MCA_memory_linux_CONFIG(action-if-can-compile,
# [action-if-cant-compile])
# ------------------------------------------------
AC_DEFUN([MCA_memory_linux_CONFIG],[
OMPI_VAR_SCOPE_PUSH([memory_linux_ptmalloc2_happy memory_linux_ummu_happy memory_linux_requested icc_major_ver icc_minor_ver memory_linux_mmap memory_linux_munmap memory_linux_LIBS_SAVE])
# Only allow this component to build on Linux-based systems
AC_MSG_CHECKING([operating system])
case $host in
*linux*)
AC_MSG_RESULT([$host -- supported])
memory_linux_ptmalloc2_happy=yes
memory_linux_ummu_happy=yes
;;
*)
AC_MSG_RESULT([$host -- unsupported])
memory_linux_ptmalloc2_happy=no
memory_linux_ummu_happy=no
;;
esac
AS_IF([test "$with_memory_manager" = "linux"],
[memory_linux_ptmalloc2_happy=yes
memory_linux_ummu_happy=yes
memory_linux_requested=1],
[memory_linux_requested=0
AS_IF([test "$with_memory_manager" = ""],
[memory_linux_ptmalloc2_happy=yes
memory_linux_ummu_happy=yes],
[memory_linux_ptmalloc2_happy=yes
memory_linux_ummu_happy=no])])
AS_IF([echo "$host_os" | grep '^gnu' >/dev/null 2>/dev/null],
[memory_linux_ptmalloc2_happy=no
memory_linux_ummu_happy=no])
######################################################################
# ptmalloc2
######################################################################
# Per ticket #227, Intel 9.0 v20051201 on ia64 with optimization
# of -O2 or higher will bork linux in strange in mysterious ways.
# Doh! So if the compiler vendor is intel and we're on an ia64
# box, run "icc --version" and snarf the version string. If it's
# 9.0 and the version is <= 20051201, then disable ptmalloc2.
# Executive decision: ignore optimization levels (even though -O1
# and -O0 seem to work). The upgrade to 9.1 is free, so that's a
# better path than trying to make a much more complicated test
# here.
AS_IF([test "$memory_linux_ptmalloc2_happy" = yes],
[case $host in
ia64-*)
AS_IF([test "$ompi_c_vendor" = "intel"],
[# check for v9.0 <= 20051201
icc_major_ver="`$CC --version | head -n 1 | awk '{ print [$]3 }'`"
icc_minor_ver="`$CC --version | head -n 1 | awk '{ print [$]4 }'`"
AS_IF([test "$icc_major_ver" = "9.0" -a "`expr $icc_minor_ver \<= 20051201`" = "1"],
[memory_linux_ptmalloc2_happy=no
AC_MSG_WARN([*** Detected Intel C compiler v9.0 <= 20051201 on ia64])
AC_MSG_WARN([*** This compiler/platform combination has known problems with ptmalloc2])
AC_MSG_WARN([*** Disabling ptmalloc2])])])
;;
esac])
AS_IF([test "$memory_linux_ptmalloc2_happy" = yes],
[# check for malloc.h
AC_CHECK_HEADER([malloc.h],
[memory_linux_ptmalloc2_happy=yes],
[memory_linux_ptmalloc2_happy=no])])
AS_IF([test "$memory_linux_ptmalloc2_happy" = yes],
[# check for init hook symbol
AC_CHECK_DECL([__malloc_initialize_hook],
[memory_linux_ptmalloc2_happy=yes],
[memory_linux_ptmalloc2_happy=no],
[AC_INCLUDES_DEFAULT
#include <malloc.h>])])
#
# See if we have sbrk prototyped
#
AS_IF([test "$memory_linux_ptmalloc2_happy" = yes],
[AC_CHECK_DECLS([sbrk])])
#
# Figure out how we're going to call mmap/munmap for real
#
AS_IF([test "$memory_linux_ptmalloc2_happy" = yes],
[memory_linux_mmap=0
memory_linux_munmap=1
# it's nearly impossible to call mmap from syscall(), so
# only go this route if we can't get at munmap any other
# way.
AC_CHECK_HEADER([syscall.h],
[AC_CHECK_FUNCS([syscall], [], [memory_linux_munmap=0])])
# Always look for __munmap and __mmap
AC_CHECK_FUNCS([__munmap], [memory_linux_mmap=1])
AC_CHECK_FUNCS([__mmap])
# only allow dlsym (and therefore add -ldl) if we
# really need to
AS_IF([test "$memory_linux_mmap" = "0"],
[memory_linux_LIBS_SAVE="$LIBS"
AC_CHECK_LIB([dl],
[dlsym],
[LIBS="$LIBS -ldl"
memory_linux_LIBS="-ldl"
memory_linux_mmap=1])
AC_CHECK_FUNCS([dlsym])
LIBS="$memory_linux_LIBS_SAVE"])
AS_IF([test "$memory_linux_mmap" = "0" -a "$memory_linux_munmap" = "0"],
[memory_linux_ptmalloc2_happy=no])])
# If all is good, save the extra libs for the wrapper
AS_IF([test "$memory_linux_ptmalloc2_happy" = yes],
[memory_linux_WRAPPER_EXTRA_LIBS="$memory_linux_LIBS"
value=1],
[value=0])
AC_DEFINE_UNQUOTED([MEMORY_LINUX_PTMALLOC2], [$value],
[Whether ptmalloc2 is supported on this system or not])
AM_CONDITIONAL([MEMORY_LINUX_PTMALLOC2],
[test "$memory_linux_ptmalloc2_happy" = yes])
######################################################################
# ummunotify
######################################################################
# Check for the relevant header
AS_IF([test "$memory_linux_ummu_happy" = yes],
[# check for linux/ummunotify.h
AC_CHECK_HEADER([linux/ummunotify.h],
[memory_linux_ummu_happy=yes],
[memory_linux_ummu_happy=no])])
# <stropts.h> has the Linux declaration for ioctl
AC_CHECK_HEADERS([stropts.h])
# If all is good, set the header file that we want the rest of the
# code base to use
AS_IF([test "$memory_linux_ummu_happy" = yes],
[memory_base_include="linux/public.h"
value=1],
[value=0])
AC_DEFINE_UNQUOTED([MEMORY_LINUX_UMMUNOTIFY], [$value],
[Whether ummunotify is supported on this system or not])
AM_CONDITIONAL([MEMORY_LINUX_UMMUNOTIFY],
[test "$memory_linux_ummu_happy" = yes])
######################################################################
# post processing
######################################################################
AS_IF([test "$memory_malloc_hooks_requested" = 1 -a \
"$memory_linux_ptmalloc2_happy" = no -a \
"$memory_linux_ummu_happy" = no],
[AC_MSG_ERROR([linux memory management requested but neither ptmalloc2 nor ummunotify are available. Aborting.])])
AC_SUBST([memory_linux_LIBS])
AS_IF([test "$memory_linux_ptmalloc2_happy" = yes -o \
"$memory_linux_ummu_happy" = yes],
[memory_base_found=1
$1],
[memory_base_found=0
memory_base_include=
$2])
OMPI_VAR_SCOPE_POP
])
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