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openmpi/config/ompi_check_attributes.m4

275 строки
11 KiB
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Исходник Обычный вид История

# -*- 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) 2004-2007 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.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
AC_DEFUN([OMPI_CHECK____ATTRIBUTE__], [
AC_MSG_CHECKING(for __attribute__)
AC_CACHE_VAL(ac_cv___attribute__, [
AC_TRY_COMPILE(
2005-09-14 02:28:51 +04:00
[#include <stdlib.h>
/* Check for the longest available __attribute__ (since gcc-2.3) */
struct foo {
char a;
int x[2] __attribute__ ((packed));
};
],
[],
[ac_cv___attribute__=1 ac_cv___attribute__msg=yes],
[ac_cv___attribute__=0 ac_cv___attribute__msg=no],
)])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE, [$ac_cv___attribute__],
[Whether your compiler has __attribute__ or not])
AC_MSG_RESULT($ac_cv___attribute__msg)
#
# Now that we know the compiler support __attribute__ let's check which kind of
# attributed are supported.
#
if test "$ac_cv___attribute__msg" = "no"; then
ac_cv___attribute__aligned=0
ac_cv___attribute__const=0
ac_cv___attribute__deprecated=0
ac_cv___attribute__format=0
ac_cv___attribute__malloc=0
ac_cv___attribute__nonnull=0
ac_cv___attribute__noreturn=0
ac_cv___attribute__pure=0
ac_cv___attribute__packed=0
ac_cv___attribute__unused=0
ac_cv___attribute__visibility=0
ac_cv___attribute__warn_unused_result=0
ac_cv___attribute__weak_alias=0
else
AC_MSG_CHECKING([for __attribute__ ((aligned))])
AC_CACHE_VAL(ac_cv___attribute__aligned, [
AC_TRY_COMPILE(
[#include <stdlib.h>
struct foo { char text[4] } __attribute__ ((aligned(8))); ],
[],
[ac_cv___attribute__aligned=1 ac_cv___attribute__aligned_msg=yes],
[ac_cv___attribute__aligned=0 ac_cv___attribute__aligned_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__aligned_msg)
AC_MSG_CHECKING([for __attribute__ ((const))])
AC_CACHE_VAL(ac_cv___attribute__const, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int foo(int arg1, int arg2) __attribute__ ((const));
int foo(int arg1, int arg2) { return arg1 * arg2 + arg1; }],
[],
[ac_cv___attribute__const=1 ac_cv___attribute__const_msg=yes],
[ac_cv___attribute__const=0 ac_cv___attribute__const_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__const_msg)
AC_MSG_CHECKING([for __attribute__ ((deprecated))])
AC_CACHE_VAL(ac_cv___attribute__deprecated, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int foo(int arg1, int arg2) __attribute__ ((deprecated));
int foo(int arg1, int arg2) { return arg1 * arg2 + arg1; }],
[],
[ac_cv___attribute__deprecated=1 ac_cv___attribute__deprecated_msg=yes],
[ac_cv___attribute__deprecated=0 ac_cv___attribute__deprecated_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__deprecated_msg)
AC_MSG_CHECKING([for __attribute__ ((format))])
AC_CACHE_VAL(ac_cv___attribute__format, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int this_printf (void *my_object, const char *my_format, ...) __attribute__ ((format (printf, 2, 3)));],
[],
[ac_cv___attribute__format=1 ac_cv___attribute__format_msg=yes],
[ac_cv___attribute__format=0 ac_cv___attribute__format_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__format_msg)
AC_MSG_CHECKING([for __attribute__ ((malloc))])
AC_CACHE_VAL(ac_cv___attribute__malloc, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int * foo(int arg1) __attribute__ ((malloc));
int * foo(int arg1) { return malloc(arg1); }],
[],
[ac_cv___attribute__malloc=1 ac_cv___attribute__malloc_msg=yes],
[ac_cv___attribute__malloc=0 ac_cv___attribute__malloc_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__malloc_msg)
AC_MSG_CHECKING([for __attribute__ ((may_alias))])
AC_CACHE_VAL(ac_cv___attribute__may_alias, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int * arg __attribute__ ((may_alias));],
[],
[ac_cv___attribute__may_alias=1 ac_cv___attribute__may_alias_msg=yes],
[ac_cv___attribute__may_alias=0 ac_cv___attribute__may_alias_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__may_alias_msg)
AC_MSG_CHECKING([for __attribute__ ((nonnull))])
AC_CACHE_VAL(ac_cv___attribute__nonnull, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int square(int *arg) __attribute__ ((nonnull));
int square(int *arg) { return *arg; }],
[
int value=1;
value = square (&value);
],
[ac_cv___attribute__nonnull=1 ac_cv___attribute__nonnull_msg=yes],
[ac_cv___attribute__nonnull=0 ac_cv___attribute__nonnull_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__nonnull_msg)
AC_MSG_CHECKING([for __attribute__ ((noreturn))])
AC_CACHE_VAL(ac_cv___attribute__noreturn, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int fatal(int arg1) __attribute__ ((noreturn));
int fatal(int arg1) { exit(arg1); }],
[],
[ac_cv___attribute__noreturn=1 ac_cv___attribute__noreturn_msg=yes],
[ac_cv___attribute__noreturn=0 ac_cv___attribute__noreturn_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__noreturn_msg)
AC_MSG_CHECKING([for __attribute__ ((packed))])
AC_CACHE_VAL(ac_cv___attribute__packed, [
AC_TRY_COMPILE(
[#include <stdlib.h>
struct foo {
char a;
int x[2] __attribute__ ((packed));
};],
[],
[ac_cv___attribute__packed=1 ac_cv___attribute__packed_msg=yes],
[ac_cv___attribute__packed=0 ac_cv___attribute__packed_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__packed_msg)
AC_MSG_CHECKING([for __attribute__ ((pure))])
AC_CACHE_VAL(ac_cv___attribute__pure, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int square(int arg) __attribute__ ((pure));
int square(int arg) { return arg * arg; }],
[],
[ac_cv___attribute__pure=1 ac_cv___attribute__pure_msg=yes],
[ac_cv___attribute__pure=0 ac_cv___attribute__pure_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__pure_msg)
AC_MSG_CHECKING([for __attribute__ ((unused))])
AC_CACHE_VAL(ac_cv___attribute__unused, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int square(int arg1 __attribute__ ((unused)), int arg2);
int square(int arg1, int arg2) { return arg2; }],
[],
[ac_cv___attribute__unused=1 ac_cv___attribute__unused_msg=yes],
[ac_cv___attribute__unused=0 ac_cv___attribute__unused_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__unused_msg)
AC_MSG_CHECKING([for __attribute__ ((visibility))])
AC_CACHE_VAL(ac_cv___attribute__visibility, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int square(int arg1) __attribute__ ((visibility("hidden")));],
[],
[ac_cv___attribute__visibility=1 ac_cv___attribute__visibility_msg=yes],
[ac_cv___attribute__visibility=0 ac_cv___attribute__visibility_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__visibility_msg)
AC_MSG_CHECKING([for __attribute__ ((warn_unused_result))])
AC_CACHE_VAL(ac_cv___attribute__warn_unused_result, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int foo(int arg) __attribute__ ((warn_unused_result));
int foo(int arg) { return arg + 3; }
int foo2(int arg) { return foo (arg); } ],
[],
[ac_cv___attribute__warn_unused_result=1 ac_cv___attribute__warn_unused_result_msg=yes],
[ac_cv___attribute__warn_unused_result=0 ac_cv___attribute__warn_unused_result_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__warn_unused_result_msg)
AC_MSG_CHECKING([for __attribute__ ((weak, alias..))])
AC_CACHE_VAL(ac_cv___attribute__weak_alias, [
AC_TRY_COMPILE(
[#include <stdlib.h>
int foo(int arg) { return arg + 3; }
int foo2(int) __attribute__ ((weak, alias("foo")));],
[],
[ac_cv___attribute__weak_alias=1 ac_cv___attribute__weak_alias_msg=yes],
[ac_cv___attribute__weak_alias=0 ac_cv___attribute__weak_alias_msg=no]
)])
AC_MSG_RESULT($ac_cv___attribute__weak_alias_msg)
fi
# Now that all the values are set, define them
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_ALIGNED, [$ac_cv___attribute__aligned],
[Whether your compiler has __attribute__ aligned or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_CONST, [$ac_cv___attribute__const],
[Whether your compiler has __attribute__ const or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_DEPRECATED, [$ac_cv___attribute__deprecated],
[Whether your compiler has __attribute__ deprecated or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_FORMAT, [$ac_cv___attribute__format],
[Whether your compiler has __attribute__ format or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_MALLOC, [$ac_cv___attribute__malloc],
[Whether your compiler has __attribute__ malloc or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_MAY_ALIAS, [$ac_cv___attribute__may_alias],
[Whether your compiler has __attribute__ may_alias or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_NONNULL, [$ac_cv___attribute__nonnull],
[Whether your compiler has __attribute__ nonnull or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_NORETURN, [$ac_cv___attribute__noreturn],
[Whether your compiler has __attribute__ noreturn or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_PACKED, [$ac_cv___attribute__packed],
[Whether your compiler has __attribute__ packed or not])
2005-09-14 02:28:51 +04:00
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_PURE, [$ac_cv___attribute__pure],
[Whether your compiler has __attribute__ pure or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_UNUSED, [$ac_cv___attribute__unused],
[Whether your compiler has __attribute__ unused or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_VISIBILITY, [$ac_cv___attribute__visibility],
[Whether your compiler has __attribute__ visibility or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_WARN_UNUSED_RESULT, [$ac_cv___attribute__warn_unused_result],
[Whether your compiler has __attribute__ warn unused result or not])
AC_DEFINE_UNQUOTED(OMPI_HAVE_ATTRIBUTE_WEAK_ALIAS, [$ac_cv___attribute__weak_alias],
[Whether your compiler has __attribute__ weak alias or not])
])