Add visibility feature for Sun Studio compilers.
This commit was SVN r20833.
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@ -11,6 +11,7 @@
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# Copyright (c) 2004-2005 The Regents of the University of California.
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# All rights reserved.
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# Copyright (c) 2006-2007 Cisco Systems, Inc. All rights reserved.
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# Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
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# $COPYRIGHT$
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#
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# Additional copyrights may follow
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@ -24,7 +25,7 @@
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AC_DEFUN([OMPI_CHECK_VISIBILITY],[
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AC_REQUIRE([AC_PROG_GREP])
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# Check if the compiler has support for visibility, like some versions of gcc, icc.
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# Check if the compiler has support for visibility, like some versions of gcc, icc Sun Studio cc.
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AC_ARG_ENABLE(visibility,
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AC_HELP_STRING([--enable-visibility],
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[enable visibility feature of certain compilers/linkers (default: enabled)]))
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@ -34,14 +35,16 @@ AC_DEFUN([OMPI_CHECK_VISIBILITY],[
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have_visibility=0
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else
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CFLAGS_orig="$CFLAGS"
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CFLAGS="$CFLAGS_orig -fvisibility=hidden"
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add=
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# check using gcc -fvisibility=hidden flag
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CFLAGS="$CFLAGS_orig -fvisibility=hidden"
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AC_CACHE_CHECK([if $CC supports -fvisibility],
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[ompi_cv_cc_fvisibility],
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[AC_TRY_LINK([
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#include <stdio.h>
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__attribute__((visibility("default"))) int foo;
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void bar(void) { fprintf(stderr, "bar\n"); };
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void bar(void) { fprintf(stderr, "bar\n"); }
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],[],
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[if test -s conftest.err ; then
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$GREP -iq "visibility" conftest.err
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@ -55,6 +58,27 @@ AC_DEFUN([OMPI_CHECK_VISIBILITY],[
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fi],
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[ompi_cv_cc_fvisibility="no"])
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])
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# Check using Sun Studio -xldscope=hidden flag
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CFLAGS="$CFLAGS_orig -xldscope=hidden"
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AC_CACHE_CHECK([if $CC supports -xldscope],
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[ompi_cv_cc_xldscope],
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[AC_TRY_LINK([
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#include <stdio.h>
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__attribute__((visibility("default"))) int foo;
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void bar(void) { fprintf(stderr, "bar\n"); }
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],[],
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[if test -s conftest.err ; then
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$GREP -iq "visibility" conftest.err
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if test "$?" = "0" ; then
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ompi_cv_cc_xldscope="no"
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else
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ompi_cv_cc_xldscope="yes"
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fi
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else
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ompi_cv_cc_xldscope="yes"
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fi],
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[ompi_cv_cc_xldscope="no"])
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])
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if test "$ompi_cv_cc_fvisibility" = "yes" ; then
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add=" -fvisibility=hidden"
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@ -62,6 +86,12 @@ AC_DEFUN([OMPI_CHECK_VISIBILITY],[
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AC_MSG_CHECKING([enable symbol visibility])
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AC_MSG_RESULT([yes])
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AC_MSG_WARN([$add has been added to CFLAGS])
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elif test "$ompi_cv_cc_xldscope" = "yes" ; then
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add=" -xldscope=hidden"
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have_visibility=1
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AC_MSG_CHECKING([enable symbol visibility])
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AC_MSG_RESULT([yes])
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AC_MSG_WARN([$add has been added to CFLAGS])
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elif test "$enable_visibility" = "yes"; then
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AC_MSG_ERROR([Symbol visibility support requested but compiler does not seem to support it. Aborting])
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else
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@ -242,7 +242,7 @@ OPAL_DECLSPEC int opal_paffinity_base_slot_list_set(long rank);
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/**
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* Debugging output stream
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*/
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extern int opal_paffinity_base_output;
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OPAL_DECLSPEC extern int opal_paffinity_base_output;
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END_C_DECLS
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@ -40,7 +40,7 @@
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/*
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* Globals
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*/
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int opal_paffinity_base_output = -1;
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OPAL_DECLSPEC int opal_paffinity_base_output = -1;
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bool opal_paffinity_base_components_opened_valid = false;
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opal_list_t opal_paffinity_base_components_opened;
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