Detect assembler support for RTM
* acinclude.m4 (LIBITM_CHECK_AS_RTM): New. * configure.ac: Use it. * config.h.in, configure: Rebuild. * testsuite/Makefile.in: Rebuild. From-SVN: r193017
This commit is contained in:
Richard Henderson
Richard Henderson
parent
d0a54439c1
commit
07d3b5c8c0
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@ -1,3 +1,10 @@
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2012-10-31 Richard Henderson <rth@redhat.com>
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* acinclude.m4 (LIBITM_CHECK_AS_RTM): New.
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* configure.ac: Use it.
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* config.h.in, configure: Rebuild.
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* testsuite/Makefile.in: Rebuild.
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2012-10-24 Torvald Riegel <triegel@redhat.com>
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* libitm.texi: Clarify ABI requirements for data-logging functions.
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@ -109,6 +109,20 @@ i[[34567]]86 | x86_64)
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;;
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esac])
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dnl Check if as supports RTM instructions.
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AC_DEFUN([LIBITM_CHECK_AS_RTM], [
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case "${target_cpu}" in
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i[[34567]]86 | x86_64)
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AC_CACHE_CHECK([if the assembler supports RTM], libitm_cv_as_rtm, [
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AC_TRY_COMPILE([], [asm("1: xbegin 1b; xend");],
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[libitm_cv_as_rtm=yes], [libitm_cv_as_rtm=no])
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])
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if test x$libitm_cv_as_rtm = xyes; then
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AC_DEFINE(HAVE_AS_RTM, 1, [Define to 1 if the assembler supports RTM.])
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fi
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;;
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esac])
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sinclude(../libtool.m4)
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dnl The lines below arrange for aclocal not to bring an installed
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dnl libtool.m4 into aclocal.m4, while still arranging for automake to
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@ -12,6 +12,9 @@
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/* Define if your assembler supports .cfi_* directives. */
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#undef HAVE_AS_CFI_PSEUDO_OP
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/* Define to 1 if the assembler supports RTM. */
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#undef HAVE_AS_RTM
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/* Define to 1 if the target supports __attribute__((alias(...))). */
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#undef HAVE_ATTRIBUTE_ALIAS
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@ -667,6 +667,7 @@ CXX
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am__fastdepCC_FALSE
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am__fastdepCC_TRUE
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CCDEPMODE
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am__nodep
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AMDEPBACKSLASH
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AMDEP_FALSE
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AMDEP_TRUE
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@ -3318,11 +3319,11 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
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# We need awk for the "check" target. The system "awk" is bad on
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# some platforms.
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# Always define AMTAR for backward compatibility.
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# Always define AMTAR for backward compatibility. Yes, it's still used
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# in the wild :-( We should find a proper way to deprecate it ...
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AMTAR='$${TAR-tar}'
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AMTAR=${AMTAR-"${am_missing_run}tar"}
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am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
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am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
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@ -4220,6 +4221,7 @@ fi
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if test "x$enable_dependency_tracking" != xno; then
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am_depcomp="$ac_aux_dir/depcomp"
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AMDEPBACKSLASH='\'
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am__nodep='_no'
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fi
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if test "x$enable_dependency_tracking" != xno; then
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AMDEP_TRUE=
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@ -4244,6 +4246,7 @@ else
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# instance it was reported that on HP-UX the gcc test will end up
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# making a dummy file named `D' -- because `-MD' means `put the output
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# in D'.
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rm -rf conftest.dir
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mkdir conftest.dir
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# Copy depcomp to subdir because otherwise we won't find it if we're
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# using a relative directory.
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@ -4303,7 +4306,7 @@ else
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break
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fi
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;;
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msvisualcpp | msvcmsys)
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msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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# This compiler won't grok `-c -o', but also, the minuso test has
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# not run yet. These depmodes are late enough in the game, and
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# so weak that their functioning should not be impacted.
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@ -4628,6 +4631,7 @@ else
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# instance it was reported that on HP-UX the gcc test will end up
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# making a dummy file named `D' -- because `-MD' means `put the output
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# in D'.
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rm -rf conftest.dir
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mkdir conftest.dir
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# Copy depcomp to subdir because otherwise we won't find it if we're
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# using a relative directory.
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@ -4687,7 +4691,7 @@ else
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break
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fi
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;;
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msvisualcpp | msvcmsys)
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msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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# This compiler won't grok `-c -o', but also, the minuso test has
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# not run yet. These depmodes are late enough in the game, and
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# so weak that their functioning should not be impacted.
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@ -4762,6 +4766,7 @@ else
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# instance it was reported that on HP-UX the gcc test will end up
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# making a dummy file named `D' -- because `-MD' means `put the output
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# in D'.
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rm -rf conftest.dir
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mkdir conftest.dir
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# Copy depcomp to subdir because otherwise we won't find it if we're
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# using a relative directory.
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@ -4819,7 +4824,7 @@ else
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break
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fi
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;;
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msvisualcpp | msvcmsys)
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msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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# This compiler won't grok `-c -o', but also, the minuso test has
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# not run yet. These depmodes are late enough in the game, and
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# so weak that their functioning should not be impacted.
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@ -11779,7 +11784,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<_LT_EOF
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#line 11782 "configure"
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#line 11787 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@ -11885,7 +11890,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<_LT_EOF
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#line 11888 "configure"
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#line 11893 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@ -17327,6 +17332,43 @@ $as_echo "#define HAVE_AS_AVX 1" >>confdefs.h
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;;
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esac
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case "${target_cpu}" in
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i[34567]86 | x86_64)
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the assembler supports RTM" >&5
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$as_echo_n "checking if the assembler supports RTM... " >&6; }
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if test "${libitm_cv_as_rtm+set}" = set; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int
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main ()
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{
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asm("1: xbegin 1b; xend");
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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libitm_cv_as_rtm=yes
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else
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libitm_cv_as_rtm=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libitm_cv_as_rtm" >&5
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$as_echo "$libitm_cv_as_rtm" >&6; }
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if test x$libitm_cv_as_rtm = xyes; then
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$as_echo "#define HAVE_AS_RTM 1" >>confdefs.h
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fi
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;;
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esac
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether weak refs work like ELF" >&5
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$as_echo_n "checking whether weak refs work like ELF... " >&6; }
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@ -244,6 +244,7 @@ CFLAGS="$save_CFLAGS $XCFLAGS"
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LIBITM_CHECK_SYNC_BUILTINS
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LIBITM_CHECK_64BIT_SYNC_BUILTINS
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LIBITM_CHECK_AS_AVX
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LIBITM_CHECK_AS_RTM
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GCC_CHECK_ELF_STYLE_WEAKREF
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@ -35,7 +35,7 @@ build_triplet = @build@
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host_triplet = @host@
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target_triplet = @target@
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subdir = testsuite
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DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
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DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am
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ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
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am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
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$(top_srcdir)/../config/asmcfi.m4 \
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@ -60,10 +60,8 @@ CONFIG_HEADER = $(top_builddir)/config.h
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CONFIG_CLEAN_FILES =
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CONFIG_CLEAN_VPATH_FILES =
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SOURCES =
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DIST_SOURCES =
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DEJATOOL = $(PACKAGE)
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RUNTESTDEFAULTFLAGS = --tool $$tool --srcdir $$srcdir
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DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
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ACLOCAL = @ACLOCAL@
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AMTAR = @AMTAR@
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AR = @AR@
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@ -295,37 +293,6 @@ distclean-DEJAGNU:
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-l='$(DEJATOOL)'; for tool in $$l; do \
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rm -f $$tool.sum $$tool.log; \
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done
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distdir: $(DISTFILES)
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@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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list='$(DISTFILES)'; \
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dist_files=`for file in $$list; do echo $$file; done | \
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sed -e "s|^$$srcdirstrip/||;t" \
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-e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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case $$dist_files in \
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*/*) $(MKDIR_P) `echo "$$dist_files" | \
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sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
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sort -u` ;; \
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esac; \
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for file in $$dist_files; do \
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if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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if test -d $$d/$$file; then \
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dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
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if test -d "$(distdir)/$$file"; then \
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find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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fi; \
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if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
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find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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fi; \
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cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
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else \
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test -f "$(distdir)/$$file" \
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|| cp -p $$d/$$file "$(distdir)/$$file" \
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|| exit 1; \
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fi; \
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done
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check-am: all-am
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$(MAKE) $(AM_MAKEFLAGS) check-DEJAGNU
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check: check-am
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@ -426,8 +393,8 @@ uninstall-am:
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.PHONY: all all-am check check-DEJAGNU check-am clean clean-generic \
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clean-libtool distclean distclean-DEJAGNU distclean-generic \
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distclean-libtool distdir dvi dvi-am html html-am info info-am \
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install install-am install-data install-data-am install-dvi \
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distclean-libtool dvi dvi-am html html-am info info-am install \
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install-am install-data install-data-am install-dvi \
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install-dvi-am install-exec install-exec-am install-html \
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install-html-am install-info install-info-am install-man \
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install-pdf install-pdf-am install-ps install-ps-am \
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