849 строки
27 KiB
Plaintext
849 строки
27 KiB
Plaintext
dnl
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dnl Copyright (c) 2004-2005 The Trustees of Indiana University.
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dnl All rights reserved.
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dnl Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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dnl All rights reserved.
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dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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dnl University of Stuttgart. All rights reserved.
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dnl Copyright (c) 2004-2005 The Regents of the University of California.
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dnl All rights reserved.
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dnl $COPYRIGHT$
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dnl
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dnl Additional copyrights may follow
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dnl
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dnl $HEADER$
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dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_ASM_TEXT
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dnl
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dnl Determine how to set current mode as text.
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_ASM_TEXT],[
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AC_MSG_CHECKING([directive for setting text section])
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ompi_cv_asm_text=""
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case $host in
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*-aix*)
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ompi_cv_asm_text=[".csect .text[PR]"]
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;;
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*)
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ompi_cv_asm_text=".text"
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;;
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esac
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AC_MSG_RESULT([$ompi_cv_asm_text])
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AC_DEFINE_UNQUOTED([OMPI_ASM_TEXT], ["$ompi_cv_asm_text"],
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[Assembly directive for setting text section])
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OMPI_ASM_TEXT="$ompi_cv_asm_text"
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AC_SUBST(OMPI_ASM_TEXT)
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_ASM_GLOBAL
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dnl
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dnl Sets OMPI_ASM_GLOBAL to the value to prefix global values
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dnl
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dnl I'm sure if I don't have a test for this, there will be some
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dnl dumb platform that uses something else
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_ASM_GLOBAL],[
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AC_MSG_CHECKING([directive for exporting symbols])
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ompi_cv_asm_global=""
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case $host in
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*)
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ompi_cv_asm_global=".globl"
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;;
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esac
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AC_MSG_RESULT([$ompi_cv_asm_global])
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AC_DEFINE_UNQUOTED([OMPI_ASM_GLOBAL], ["$ompi_cv_asm_global"],
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[Assembly directive for exporting symbols])
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OMPI_ASM_GLOBAL="$ompi_cv_asm_global"
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AC_SUBST(OMPI_AS_GLOBAL)
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_ASM_LSYM
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dnl
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dnl Sets OMPI_ASM_LSYM to the prefix value on a symbol to make it
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dnl an internal label (jump target and whatnot)
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dnl
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dnl We look for L .L $ L$ (in that order) for something that both
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dnl assembles and does not leave a label in the output of nm. Fall
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dnl back to L if nothing else seems to work :/
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_ASM_LSYM],[
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AC_REQUIRE([OMPI_CHECK_ASM_LABEL_SUFFIX])
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AC_REQUIRE([AC_PROG_NM])
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AC_MSG_CHECKING([prefix for lsym labels])
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ompi_cv_asm_lsym="L"
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for sym in L .L $ L$ ; do
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asm_result=0
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echo "configure: trying $sym" >& AC_FD_CC
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OMPI_TRY_ASSEMBLE([foobar$ompi_cv_asm_label_suffix
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${sym}mytestlabel$ompi_cv_asm_label_suffix],
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[# ok, we succeeded at assembling. see if we can nm,
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# throwing the results in a file
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if $NM conftest.$OBJEXT > conftest.out 2>&AC_FD_CC ; then
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if test "`grep mytestlabel conftest.out`" = "" ; then
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# there was no symbol... looks promising to me
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ompi_cv_asm_lsym="$sym"
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asm_result=1
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elif test ["`grep ' [Nt] .*mytestlabel' conftest.out`"] = "" ; then
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# see if we have a non-global-ish symbol
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# but we should see if we can do better.
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ompi_cv_asm_lsym="$sym"
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fi
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else
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# not so much on the NM goodness :/
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echo "$NM failed. Output from NM was:" >& AC_FD_CC
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cat conftest.out > AC_FD_CC
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AC_MSG_WARN([$NM could not read object file])
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fi
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])
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if test "$asm_result" = "1" ; then
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break
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fi
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done
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rm -f conftest.out
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AC_MSG_RESULT([$ompi_cv_asm_lsym])
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AC_DEFINE_UNQUOTED([OMPI_ASM_LSYM], ["$ompi_cv_asm_lsym"],
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[Assembly prefix for lsym labels])
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OMPI_ASM_LSYM="$ompi_cv_asm_lsym"
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AC_SUBST(OMPI_ASM_LSYM)
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unset asm_result sym
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_ASM_GSYM
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dnl
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dnl Sets OMPI_ASM_GSYM to the prefix value on a symbol to make it
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dnl a global linkable from C. Basically, an _ or not.
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_ASM_GSYM],[
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AC_REQUIRE([OMPI_CHECK_ASM_TEXT])
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AC_REQUIRE([OMPI_CHECK_ASM_GLOBAL])
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AC_REQUIRE([OMPI_CHECK_ASM_LABEL_SUFFIX])
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AC_MSG_CHECKING([prefix for global symbol labels])
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ompi_cv_asm_gsym="none"
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for sym in "_" "" "." ; do
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asm_result=0
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echo "configure: trying $sym" >& AC_FD_CC
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cat > conftest_c.c <<EOF
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#ifdef __cplusplus
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extern "C" {
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#endif
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void gsym_test_func(void);
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#ifdef __cplusplus
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}
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#endif
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int
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main(int argc, char *argv[[]])
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{
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gsym_test_func();
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return 0;
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}
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EOF
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OMPI_TRY_ASSEMBLE([
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$ompi_cv_asm_text
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$ompi_cv_asm_global ${sym}gsym_test_func
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${sym}gsym_test_func${ompi_cv_asm_label_suffix}],
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[ompi_compile="$CC $CFLAGS -I. conftest_c.c -c > conftest.cmpl 2>&1"
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if AC_TRY_EVAL(ompi_compile) ; then
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# save the warnings
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cat conftest.cmpl >&AC_FD_CC
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ompi_link="$CC $CFLAGS conftest_c.$OBJEXT conftest.$OBJEXT -o conftest > conftest.link 2>&1"
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if AC_TRY_EVAL(ompi_link) ; then
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# save the warnings
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cat conftest.link >&AC_FD_CC
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asm_result=1
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else
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cat conftest.link >&AC_FD_CC
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echo "configure: failed C program was: " >&AC_FD_CC
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cat conftest_c.c >&AC_FD_CC
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echo "configure: failed ASM program was: " >&AC_FD_CC
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cat conftest.s >&AC_FD_CC
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asm_result=0
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fi
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else
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# save output and failed program
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cat conftest.cmpl >&AC_FD_CC
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echo "configure: failed C program was: " >&AC_FD_CC
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cat conftest.c >&AC_FD_CC
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asm_result=0
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fi],
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[asm_result=0])
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if test "$asm_result" = "1" ; then
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ompi_cv_asm_gsym="$sym"
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break
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fi
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done
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rm -f conftest.*
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AC_MSG_RESULT([$ompi_cv_asm_gsym])
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if test "$ompi_cv_asm_gsym" = "none" ; then
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AC_MSG_ERROR([Could not determine global symbol label prefix])
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fi
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AC_DEFINE_UNQUOTED([OMPI_ASM_GSYM], ["$ompi_cv_asm_gsym"],
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[Assembly prefix for lsym labels])
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OMPI_ASM_GSYM="$ompi_cv_asm_gsym"
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AC_SUBST(OMPI_ASM_GSYM)
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_ASM_LABEL_SUFFIX
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dnl
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dnl Sets OMPI_ASM_LABEL_SUFFIX to the value to suffix for labels
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dnl
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dnl I'm sure if I don't have a test for this, there will be some
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dnl dumb platform that uses something else
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_ASM_LABEL_SUFFIX],[
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AC_MSG_CHECKING([suffix for labels])
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ompi_cv_asm_label_suffix=""
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case $host in
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*)
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ompi_cv_asm_label_suffix=":"
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;;
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esac
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AC_MSG_RESULT([$ompi_cv_asm_label_suffix])
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AC_DEFINE_UNQUOTED([OMPI_ASM_LABEL_SUFFIX], ["$ompi_cv_asm_label_suffix"],
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[Assembly suffix for labels])
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OMPI_ASM_LABEL_SUFFIX="$ompi_cv_asm_label_suffix"
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AC_SUBST(OMPI_AS_LABEL_SUFFIX)
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_ASM_ALIGN_LOG
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dnl
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dnl Sets OMPI_ASM_ALIGN_LOG to 1 if align is specified
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dnl logarithmically, 0 otherwise
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_ASM_ALIGN_LOG],[
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AC_REQUIRE([OMPI_CHECK_ASM_TEXT])
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AC_REQUIRE([OMPI_CHECK_ASM_GLOBAL])
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AC_REQUIRE([OMPI_CHECK_ASM_LABEL_SUFFIX])
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AC_REQUIRE([AC_PROG_NM])
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ompi_cv_asm_align_log=0
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asm_result="no"
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AC_MSG_CHECKING([if .align directive takes logarithmic value])
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OMPI_TRY_ASSEMBLE([ $ompi_cv_asm_text
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.align 4
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$ompi_cv_asm_global foo
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.byte 1
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.align 4
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foo$ompi_cv_asm_label_suffix
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.byte 2],
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[ompi_asm_addr=[`$NM conftest.$OBJEXT | grep foo | sed -e 's/.*\([0-9a-fA-F][0-9a-fA-F]\).*foo.*/\1/'`]],
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[ompi_asm_addr=""])
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# test for both 16 and 10 (decimal and hex notations)
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echo "configure: .align test address offset is $ompi_asm_addr" >& AC_FD_CC
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if test "$ompi_asm_addr" = "16" -o "$ompi_asm_addr" = "10" ; then
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ompi_cv_asm_align_log=1
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asm_result="yes"
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fi
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AC_MSG_RESULT([$asm_result])
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AC_DEFINE_UNQUOTED([OMPI_ASM_ALIGN_LOG],
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[$ompi_cv_asm_align_log],
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[Assembly align directive expects logarithmic value])
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unset omp_asm_addr asm_result
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_ASM_TYPE
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dnl
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dnl Sets OMPI_ASM_TYPE to the prefix for the function type to
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dnl set a symbol's type as function (needed on ELF for shared
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dnl libaries). If no .type directive is needed, sets OMPI_ASM_TYPE
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dnl to an empty string
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dnl
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dnl We look for @ \# %
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_ASM_TYPE],[
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AC_MSG_CHECKING([prefix for function in .type])
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ompi_cv_asm_type=""
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case "${host}" in
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*-sun-solaris*)
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# GCC on solaris seems to accept just about anything, not
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# that what it defines actually works... So just hardwire
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# to the right answer
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ompi_cv_asm_type="#"
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;;
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*)
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for type in @ \# % ; do
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asm_result=0
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echo "configure: trying $type" >& AC_FD_CC
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OMPI_TRY_ASSEMBLE([ .type mysym, ${type}function],
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[# ok, we succeeded at assembling. see if there was
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# a warning in the output.
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if test "`cat conftest.out`" = "" ; then
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ompi_cv_asm_type="${type}"
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asm_result=1
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fi])
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if test "$asm_result" = "1" ; then
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break
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fi
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done
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;;
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esac
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rm -f conftest.out
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AC_MSG_RESULT([$ompi_cv_asm_type])
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AC_DEFINE_UNQUOTED([OMPI_ASM_TYPE], ["$ompi_cv_asm_type"],
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[How to set function type in .type directive])
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OMPI_ASM_TYPE="$ompi_cv_asm_type"
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AC_SUBST(OMPI_ASM_TYPE)
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unset asm_result type
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_ASM_SIZE
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dnl
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dnl Sets OMPI_ASM_SIZE to 1 if we should set .size directives for
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dnl each function, 0 otherwise.
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_ASM_SIZE],[
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AC_MSG_CHECKING([if .size is needed])
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ompi_cv_asm_size=0
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asm_result="no"
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OMPI_TRY_ASSEMBLE([ .size mysym, 1],
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[# ok, we succeeded at assembling. see if there was
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# a warning in the output.
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if test "`cat conftest.out`" = "" ; then
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ompi_cv_asm_size=1
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asm_result="yes"
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fi])
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rm -f conftest.out
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AC_MSG_RESULT([$asm_result])
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AC_DEFINE_UNQUOTED([OMPI_ASM_SIZE], ["$ompi_cv_asm_size"],
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[Do we need to give a .size directive?])
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OMPI_ASM_SIZE="$ompi_cv_asm_size"
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AC_SUBST(OMPI_ASM_TYPE)
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unset asm_result
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_POWERPC_REG
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dnl
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dnl See if the notation for specifying registers is X (most everyone)
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dnl or rX (OS X)
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_POWERPC_REG],[
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AC_REQUIRE([OMPI_CHECK_ASM_TEXT])
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AC_MSG_CHECKING([if PowerPC registers have r prefix])
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OMPI_TRY_ASSEMBLE([$ompi_cv_asm_text
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addi 1,1,0],
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[ompi_cv_asm_powerpc_r_reg=0],
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OMPI_TRY_ASSEMBLE([$ompi_cv_asm_text
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addi r1,r1,0],
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[ompi_cv_asm_powerpc_r_reg=1],
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AC_MSG_ERROR([Can not determine how to use PPC registers])))
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if test "$ompi_cv_asm_powerpc_r_reg" = "1" ; then
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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fi
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AC_DEFINE_UNQUOTED([OMPI_POWERPC_R_REGISTERS],
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[$ompi_cv_asm_powerpc_r_reg],
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[Whether r notation is used for ppc registers])
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_POWERPC_64BIT
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dnl
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dnl On some powerpc chips (the PPC970 or G5), the OS usually runs in
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dnl 32 bit mode, even though the hardware can do 64bit things. If
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dnl the compiler will let us, emit code for 64bit test and set type
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dnl operations (on a long long).
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_POWERPC_64BIT],[
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AC_REQUIRE([OMPI_CHECK_ASM_TEXT])
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AC_MSG_CHECKING([for 64-bit PowerPC assembly support])
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ppc64_result=0
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if test "$ompi_cv_asm_powerpc_r_reg" = "1" ; then
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ldarx_asm=" ldarx r1,r1,r1";
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else
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ldarx_asm=" ldarx 1,1,1";
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fi
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OMPI_TRY_ASSEMBLE([$ompi_cv_asm_text
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$ldarx_asm],
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[ppc64_result=1],
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[ppc64_result=0])
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if test "$ppc64_result" = "1" ; then
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AC_MSG_RESULT([yes])
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ifelse([$1],,:,[$1])
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else
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AC_MSG_RESULT([no])
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ifelse([$2],,:,[$2])
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fi
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unset ppc64_result ldarx_asm
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_SPARCV8PLUS
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_SPARCV8PLUS],[
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AC_REQUIRE([OMPI_CHECK_ASM_TEXT])
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AC_MSG_CHECKING([if have Sparc v8+/v9 support])
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sparc_result=0
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OMPI_TRY_ASSEMBLE([$ompi_cv_asm_text
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casa [%o0] 0x80, %o1, %o2],
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[sparc_result=1],
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[sparc_result=0])
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if test "$sparc_result" = "1" ; then
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AC_MSG_RESULT([yes])
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ifelse([$1],,:,[$1])
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else
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AC_MSG_RESULT([no])
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ifelse([$2],,:,[$2])
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fi
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unset sparc_result
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])dnl
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dnl #################################################################
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dnl
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dnl OMPI_CHECK_INLINE_GCC
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dnl
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dnl Check if the compiler is capable of doing GCC-style inline
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dnl assembly. Some compilers emit a warning and ignore the inline
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dnl assembly (xlc on OS X) and compile without error. Therefore,
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dnl the test attempts to run the emited code to check that the
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dnl assembly is actually run. To run this test, one argument to
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dnl the macro must be an assembly instruction in gcc format to move
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dnl the value 0 into the register containing the variable ret.
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dnl For PowerPC, this would be:
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dnl
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dnl "li %0,0" : "=&r"(ret)
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dnl
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dnl DEFINE OMPI_GCC_INLINE_ASSEMBLY to 0 or 1 depending on GCC
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dnl support
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_INLINE_GCC],[
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assembly="$1"
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asm_result="unknown"
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AC_MSG_CHECKING([if $CC supports GCC inline assembly])
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if test ! "$assembly" = "" ; then
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AC_RUN_IFELSE(AC_LANG_PROGRAM([[
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AC_INCLUDES_DEFAULT]],
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[[int ret = 1;
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__asm__ __volatile__ ($assembly);
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return ret;]]),
|
|
[asm_result="yes"], [asm_result="no"],
|
|
[asm_result="unknown"])
|
|
else
|
|
assembly="test skipped - assuming no"
|
|
fi
|
|
|
|
# if we're cross compiling, just try to compile and figure good enough
|
|
if test "$asm_result" = "unknown" ; then
|
|
AC_LINK_IFELSE(AC_LANG_PROGRAM([[
|
|
AC_INCLUDES_DEFAULT]],
|
|
[[int ret = 1;
|
|
__asm__ __volatile__ ($assembly);
|
|
return ret;]]),
|
|
[asm_result="yes"], [asm_result="no"])
|
|
fi
|
|
|
|
AC_MSG_RESULT([$asm_result])
|
|
|
|
if test "$asm_result" = "yes" ; then
|
|
OMPI_GCC_INLINE_ASSEMBLY=1
|
|
else
|
|
OMPI_GCC_INLINE_ASSEMBLY=0
|
|
fi
|
|
|
|
AC_DEFINE_UNQUOTED([OMPI_GCC_INLINE_ASSEMBLY],
|
|
[$OMPI_GCC_INLINE_ASSEMBLY],
|
|
[Whether compiler supports GCC style inline assembly])
|
|
|
|
unset OMPI_GCC_INLINE_ASSEMBLY assembly asm_result
|
|
])dnl
|
|
|
|
|
|
dnl #################################################################
|
|
dnl
|
|
dnl OMPI_CHECK_INLINE_DEC
|
|
dnl
|
|
dnl DEFINE OMPI_DEC to 0 or 1 depending on DEC
|
|
dnl support
|
|
dnl
|
|
dnl #################################################################
|
|
AC_DEFUN([OMPI_CHECK_INLINE_DEC],[
|
|
|
|
AC_MSG_CHECKING([if $CC supports DEC inline assembly])
|
|
|
|
AC_LINK_IFELSE(AC_LANG_PROGRAM([[
|
|
AC_INCLUDES_DEFAULT
|
|
#include <c_asm.h>]],
|
|
[[asm("");
|
|
return 0;]]),
|
|
[asm_result="yes"], [asm_result="no"])
|
|
|
|
AC_MSG_RESULT([$asm_result])
|
|
|
|
if test "$asm_result" = "yes" ; then
|
|
OMPI_DEC_INLINE_ASSEMBLY=1
|
|
else
|
|
OMPI_DEC_INLINE_ASSEMBLY=0
|
|
fi
|
|
|
|
AC_DEFINE_UNQUOTED([OMPI_DEC_INLINE_ASSEMBLY],
|
|
[$OMPI_DEC_INLINE_ASSEMBLY],
|
|
[Whether compiler supports DEC style inline assembly])
|
|
|
|
unset OMPI_DEC_INLINE_ASSEMBLY asm_result
|
|
])dnl
|
|
|
|
|
|
dnl #################################################################
|
|
dnl
|
|
dnl OMPI_CHECK_INLINE_XLC
|
|
dnl
|
|
dnl DEFINE OMPI_XLC to 0 or 1 depending on XLC
|
|
dnl support
|
|
dnl
|
|
dnl #################################################################
|
|
AC_DEFUN([OMPI_CHECK_INLINE_XLC],[
|
|
|
|
AC_MSG_CHECKING([if $CC supports XLC inline assembly])
|
|
|
|
OMPI_XLC_INLINE_ASSEMBLY=0
|
|
asm_result="no"
|
|
if test "$CC" = "xlc" ; then
|
|
if test "$CXX" = "xlC" -o "$CXX" = "xlc++" ; then
|
|
OMPI_XLC_INLINE_ASSEMBLY=1
|
|
asm_result="yes"
|
|
fi
|
|
fi
|
|
|
|
AC_MSG_RESULT([$asm_result])
|
|
AC_DEFINE_UNQUOTED([OMPI_XLC_INLINE_ASSEMBLY],
|
|
[$OMPI_XLC_INLINE_ASSEMBLY],
|
|
[Whether compiler supports XLC style inline assembly])
|
|
|
|
unset OMPI_XLC_INLINE_ASSEMBLY
|
|
])dnl
|
|
|
|
|
|
dnl #################################################################
|
|
dnl
|
|
dnl OMPI_CONFIG_ASM
|
|
dnl
|
|
dnl DEFINE OMPI_ASSEMBLY_ARCH to something in sys/architecture.h
|
|
dnl DEFINE OMPI_ASSEMBLY_FORMAT to string containing correct
|
|
dnl format for assembly (not user friendly)
|
|
dnl SUBST OMPI_ASSEMBLY_FORMAT to string containing correct
|
|
dnl format for assembly (not user friendly)
|
|
dnl
|
|
dnl #################################################################
|
|
AC_DEFUN([OMPI_CONFIG_ASM],[
|
|
AC_REQUIRE([OMPI_SETUP_CC])
|
|
AC_REQUIRE([OMPI_SETUP_CXX])
|
|
AC_REQUIRE([AM_PROG_AS])
|
|
AC_REQUIRE([OMPI_CHECK_ASM_TEXT])
|
|
AC_REQUIRE([OMPI_CHECK_ASM_GLOBAL])
|
|
AC_REQUIRE([OMPI_CHECK_ASM_GSYM])
|
|
AC_REQUIRE([OMPI_CHECK_ASM_LSYM])
|
|
AC_REQUIRE([OMPI_CHECK_ASM_TYPE])
|
|
AC_REQUIRE([OMPI_CHECK_ASM_SIZE])
|
|
AC_REQUIRE([OMPI_CHECK_ASM_LABEL_SUFFIX])
|
|
AC_REQUIRE([OMPI_CHECK_ASM_ALIGN_LOG])
|
|
|
|
AC_MSG_CHECKING([whether to enable smp locks])
|
|
AC_ARG_ENABLE(smp-locks,
|
|
AC_HELP_STRING([--enable-smp-locks],
|
|
[disable smp locks in atomic ops (default: enabled)]))
|
|
if test "$enable_smp_locks" != "no"; then
|
|
AC_MSG_RESULT([yes])
|
|
want_smp_locks=1
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
want_smp_locks=0
|
|
fi
|
|
AC_DEFINE_UNQUOTED([OMPI_WANT_SMP_LOCKS], [$want_smp_locks],
|
|
[whether we want to have smp locks in atomic ops or not])
|
|
|
|
|
|
# find our architecture for purposes of assembly stuff
|
|
ompi_cv_asm_arch="UNSUPPORTED"
|
|
OMPI_GCC_INLINE_ASSIGN=""
|
|
OMPI_ASM_SUPPORT_64BIT=0
|
|
case "${host}" in
|
|
*-winnt*)
|
|
ompi_cv_asm_arch="WINDOWS"
|
|
;;
|
|
|
|
i?86-*)
|
|
ompi_cv_asm_arch="IA32"
|
|
OMPI_ASM_SUPPORT_64BIT=1
|
|
OMPI_GCC_INLINE_ASSIGN='"movl [$]0, %0" : "=&r"(ret)'
|
|
;;
|
|
|
|
x86_64*)
|
|
ompi_cv_asm_arch="AMD64"
|
|
OMPI_ASM_SUPPORT_64BIT=1
|
|
OMPI_GCC_INLINE_ASSIGN='"movl [$]0, %0" : "=&r"(ret)'
|
|
;;
|
|
|
|
ia64-*)
|
|
ompi_cv_asm_arch="IA64"
|
|
OMPI_ASM_SUPPORT_64BIT=1
|
|
OMPI_GCC_INLINE_ASSIGN='"mov %0=r0\n;;\n" : "=&r"(ret)'
|
|
;;
|
|
|
|
alpha-*)
|
|
ompi_cv_asm_arch="ALPHA"
|
|
OMPI_ASM_SUPPORT_64BIT=1
|
|
OMPI_GCC_INLINE_ASSIGN='"bis zero,zero,%0" : "=&r"(ret)'
|
|
;;
|
|
|
|
mips-*)
|
|
# Should really find some way to make sure that we are on
|
|
# a MIPS III machine (r4000 and later)
|
|
ompi_cv_asm_arch="MIPS"
|
|
OMPI_ASM_SUPPORT_64BIT=1
|
|
OMPI_GCC_INLINE_ASSIGN='"or %0,[$]0,[$]0" : "=&r"(ret)'
|
|
;;
|
|
|
|
powerpc-*|powerpc64-*)
|
|
OMPI_CHECK_POWERPC_REG
|
|
if test "$ac_cv_sizeof_long" = "4" ; then
|
|
ompi_cv_asm_arch="POWERPC32"
|
|
|
|
# Note that on some platforms (Apple G5), even if we are
|
|
# compiling in 32 bit mode (and therefore should assume
|
|
# sizeof(long) == 4), we can use the 64 bit test and set
|
|
# operations.
|
|
OMPI_CHECK_POWERPC_64BIT(OMPI_ASM_SUPPORT_64BIT=1)
|
|
elif test "$ac_cv_sizeof_long" = "8" ; then
|
|
OMPI_ASM_SUPPORT_64BIT=1
|
|
ompi_cv_asm_arch="POWERPC64"
|
|
else
|
|
AC_MSG_ERROR([Could not determine PowerPC word size: $ac_cv_sizeof_long])
|
|
fi
|
|
OMPI_GCC_INLINE_ASSIGN='"1: li %0,0" : "=&r"(ret)'
|
|
;;
|
|
|
|
sparc*-*)
|
|
# SPARC v9 (and above) are the only ones with 64bit support
|
|
# if compiling 32 bit, see if we are v9 (aka v8plus) or
|
|
# earlier (casa is v8+/v9).
|
|
if test "$ac_cv_sizeof_long" = "4" ; then
|
|
have_v8plus=0
|
|
OMPI_CHECK_SPARCV8PLUS([have_v8plus=1])
|
|
if test "$have_v8plus" = "0" ; then
|
|
OMPI_ASM_SUPPORT_64BIT=0
|
|
ompi_cv_asm_arch="SPARC"
|
|
AC_MSG_WARN([Using SPARC V8 assembly for atomic operations. This])
|
|
AC_MSG_WARN([may result in reduced performance on UltraSparc platforms.])
|
|
AC_MSG_WARN([If you are compiling for the UltraSparc, consider ])
|
|
AC_MSG_WARN([specifying the architecture v8plus (cc: -xarch=v8plus, ])
|
|
AC_MSG_WARN([gcc: -mv8plus) when compiling Open MPI, as you may see a])
|
|
AC_MSG_WARN([significant performance increase.])
|
|
|
|
else
|
|
OMPI_ASM_SUPPORT_64BIT=1
|
|
ompi_cv_asm_arch="SPARCV9_32"
|
|
fi
|
|
|
|
elif test "$ac_cv_sizeof_long" = "8" ; then
|
|
OMPI_ASM_SUPPORT_64BIT=1
|
|
ompi_cv_asm_arch="SPARCV9_64"
|
|
else
|
|
AC_MSG_ERROR([Could not determine Sparc word size: $ac_cv_sizeof_long])
|
|
fi
|
|
OMPI_GCC_INLINE_ASSIGN='"mov 0,%0" : "=&r"(ret)'
|
|
;;
|
|
|
|
*)
|
|
AC_MSG_ERROR([No atomic primitives available for $host])
|
|
;;
|
|
esac
|
|
|
|
AC_DEFINE_UNQUOTED([OMPI_ASM_SUPPORT_64BIT],
|
|
[$OMPI_ASM_SUPPORT_64BIT],
|
|
[Whether we can do 64bit assembly operations or not. Should not be used outside of the assembly header files])
|
|
AC_SUBST([OMPI_ASM_SUPPORT_64BIT])
|
|
|
|
#
|
|
# figure out if we need any special function start / stop code
|
|
#
|
|
case $host_os in
|
|
aix*)
|
|
ompi_asm_arch_config="aix"
|
|
;;
|
|
*)
|
|
ompi_asm_arch_config="default"
|
|
;;
|
|
esac
|
|
|
|
|
|
# now that we know our architecture, try to inline assemble
|
|
OMPI_CHECK_INLINE_GCC([$OMPI_GCC_INLINE_ASSIGN])
|
|
OMPI_CHECK_INLINE_DEC
|
|
OMPI_CHECK_INLINE_XLC
|
|
|
|
# format:
|
|
# config_file-text-global-label_suffix-gsym-lsym-type-size-align_log-ppc_r_reg-64_bit
|
|
asm_format="${ompi_asm_arch_config}"
|
|
asm_format="${asm_format}-${ompi_cv_asm_text}-${ompi_cv_asm_global}"
|
|
asm_format="${asm_format}-${ompi_cv_asm_label_suffix}-${ompi_cv_asm_gsym}"
|
|
asm_format="${asm_format}-${ompi_cv_asm_lsym}"
|
|
asm_format="${asm_format}-${ompi_cv_asm_type}-${ompi_cv_asm_size}"
|
|
asm_format="${asm_format}-${ompi_cv_asm_align_log}"
|
|
if test "$ompi_cv_asm_arch" = "POWERPC32" -o "$ompi_cv_asm_arch" = "POWERPC64" ; then
|
|
asm_format="${asm_format}-${ompi_cv_asm_powerpc_r_reg}"
|
|
else
|
|
asm_format="${asm_format}-1"
|
|
fi
|
|
ompi_cv_asm_format="${asm_format}-${OMPI_ASM_SUPPORT_64BIT}"
|
|
OMPI_ASSEMBLY_FORMAT="$ompi_cv_asm_format"
|
|
|
|
AC_MSG_CHECKING([for assembly format])
|
|
AC_MSG_RESULT([$OMPI_ASSEMBLY_FORMAT])
|
|
AC_DEFINE_UNQUOTED([OMPI_ASSEMBLY_FORMAT], ["$OMPI_ASSEMBLY_FORMAT"],
|
|
[Format of assembly file])
|
|
AC_SUBST([OMPI_ASSEMBLY_FORMAT])
|
|
|
|
result="OMPI_$ompi_cv_asm_arch"
|
|
OMPI_ASSEMBLY_ARCH="$ompi_cv_asm_arch"
|
|
AC_MSG_CHECKING([for asssembly architecture])
|
|
AC_MSG_RESULT([$ompi_cv_asm_arch])
|
|
AC_DEFINE_UNQUOTED([OMPI_ASSEMBLY_ARCH], [$result],
|
|
[Architecture type of assembly to use for atomic operations])
|
|
AC_SUBST([OMPI_ASSEMBLY_ARCH])
|
|
|
|
OMPI_ASM_FIND_FILE
|
|
|
|
unset result asm_format
|
|
])dnl
|
|
|
|
|
|
dnl #################################################################
|
|
dnl
|
|
dnl OMPI_ASM_FIND_FILE
|
|
dnl
|
|
dnl
|
|
dnl do all the evil mojo to provide a working assembly file
|
|
dnl
|
|
dnl #################################################################
|
|
AC_DEFUN([OMPI_ASM_FIND_FILE], [
|
|
AC_REQUIRE([AC_PROG_FGREP])
|
|
AC_CHECK_PROG([PERL], [perl], [perl])
|
|
|
|
# see if we have a pre-built one already
|
|
AC_MSG_CHECKING([for pre-built assembly file])
|
|
ompi_cv_asm_file=""
|
|
if grep "$ompi_cv_asm_arch" "${top_ompi_srcdir}/opal/asm/asm-data.txt" | $FGREP "$ompi_cv_asm_format" >conftest.out 2>&1 ; then
|
|
ompi_cv_asm_file="`cut -f3 conftest.out`"
|
|
if test ! "$ompi_cv_asm_file" = "" ; then
|
|
ompi_cv_asm_file="atomic-${ompi_cv_asm_file}.s"
|
|
if test -f "${top_ompi_srcdir}/opal/asm/generated/${ompi_cv_asm_file}" ; then
|
|
AC_MSG_RESULT([yes ($ompi_cv_asm_file)])
|
|
else
|
|
AC_MSG_RESULT([no ($ompi_cv_asm_file not found)])
|
|
ompi_cv_asm_file=""
|
|
fi
|
|
fi
|
|
else
|
|
AC_MSG_RESULT([no (not in asm-data)])
|
|
fi
|
|
rm -f conftest.*
|
|
|
|
if test "$ompi_cv_asm_file" = "" ; then
|
|
if test ! "$PERL" = "" ; then
|
|
# we have perl... Can we generate a file?
|
|
AC_MSG_CHECKING([whether possible to generate assembly file])
|
|
mkdir -p opal/asm/generated
|
|
ompi_cv_asm_file="atomic-local.s"
|
|
ompi_try="$PERL \"$top_ompi_srcdir/opal/asm/generate-asm.pl\" \"$ompi_cv_asm_arch\" \"$ompi_cv_asm_format\" \"$top_ompi_srcdir/opal/asm/base\" \"$top_ompi_builddir/opal/asm/generated/$ompi_cv_asm_file\" >conftest.out 2>&1"
|
|
if AC_TRY_EVAL(ompi_try) ; then
|
|
# save the warnings
|
|
cat conftest.out >&AC_FD_CC
|
|
AC_MSG_RESULT([yes])
|
|
else
|
|
# save output
|
|
cat conftest.out >&AC_FD_CC
|
|
ompi_cv_asm_file=""
|
|
AC_MSG_RESULT([failed])
|
|
AC_MSG_WARN([Could not build atomic operations assembly file.])
|
|
AC_MSG_WARN([There will be no atomic operations for this build.])
|
|
fi
|
|
else
|
|
AC_MSG_WARN([Could not find prebuilt atomic operations file and could not])
|
|
AC_MSG_WARN([find perl to attempt to generate a custom assembly file.])
|
|
AC_MSG_WARN([There will be no atomic operations for this build.])
|
|
fi
|
|
fi
|
|
rm -f conftest.*
|
|
|
|
AC_MSG_CHECKING([for atomic assembly filename])
|
|
if test "$ompi_cv_asm_file" = "" ; then
|
|
AC_MSG_RESULT([none])
|
|
result=0
|
|
else
|
|
AC_MSG_RESULT([$ompi_cv_asm_file])
|
|
result=1
|
|
fi
|
|
|
|
AC_DEFINE_UNQUOTED([OMPI_HAVE_ASM_FILE], [$result],
|
|
[Whether there is an atomic assembly file available])
|
|
AM_CONDITIONAL([OMPI_HAVE_ASM_FILE], [test "$result" = "1"])
|
|
|
|
OMPI_ASM_FILE=$ompi_cv_asm_file
|
|
AC_SUBST(OMPI_ASM_FILE)
|
|
])dnl
|