8156980: Hotspot build doesn't have -std=gnu++98 gcc option
8157358: Syntax error in TOOLCHAIN_CHECK_COMPILER_VERSION
Summary: Add flags for GCC 6 to JVM_CFLAGS and fix prefix handling
Reviewed-by: erikj, kbarrett
--- a/common/autoconf/flags.m4 Fri Jul 08 12:17:09 2016 -0700
+++ b/common/autoconf/flags.m4 Sun Jul 10 22:00:03 2016 +0100
@@ -713,6 +713,7 @@
FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [[$]$2CXXSTD_CXXFLAG -Werror],
IF_FALSE: [$2CXXSTD_CXXFLAG=""])
$2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"
+ $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"
AC_SUBST([$2CXXSTD_CXXFLAG])
fi
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
@@ -768,7 +769,7 @@
$2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing"
;;
esac
- TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, PREFIX: $2, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS)
+ TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, PREFIX: $2, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS($2))
elif test "x$TOOLCHAIN_TYPE" = xclang; then
$2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_GNU_SOURCE"
@@ -1447,19 +1448,24 @@
AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
])
-AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
+# FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX])
+# Arguments:
+# $1 - Optional prefix for each variable defined.
+AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
[
# These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
# runs afoul of the more aggressive versions of these optimisations.
# Notably, value range propagation now assumes that the this pointer of C++
# member functions is non-null.
- NO_NULL_POINTER_CHECK_CFLAG="-fno-delete-null-pointer-checks"
- FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_NULL_POINTER_CHECK_CFLAG -Werror],
- IF_FALSE: [NO_NULL_POINTER_CHECK_CFLAG=""])
- AC_SUBST([NO_NULL_POINTER_CHECK_CFLAG])
+ NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
+ dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation
+ dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],
+ dnl IF_FALSE: [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])
NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
- FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror],
- IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""])
- CFLAGS_JDK="${CFLAGS_JDK} ${NO_NULL_POINTER_CHECK_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
- AC_SUBST([NO_LIFETIME_DSE_CFLAG])
+ dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation
+ dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror],
+ dnl IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""])
+ AC_MSG_NOTICE([GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}])
+ $1CFLAGS_JDK="[$]$1CFLAGS_JDK ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
+ $1JVM_CFLAGS="[$]$1JVM_CFLAGS ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
])
--- a/common/autoconf/generated-configure.sh Fri Jul 08 12:17:09 2016 -0700
+++ b/common/autoconf/generated-configure.sh Sun Jul 10 22:00:03 2016 +0100
@@ -749,8 +749,6 @@
CFLAGS_JDKEXE
CFLAGS_JDKLIB
MACOSX_VERSION_MIN
-NO_LIFETIME_DSE_CFLAG
-NO_NULL_POINTER_CHECK_CFLAG
CXXSTD_CXXFLAG
CXX_O_FLAG_SIZE
CXX_O_FLAG_NONE
@@ -4092,6 +4090,9 @@
+# FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX])
+# Arguments:
+# $1 - Optional prefix for each variable defined.
#
@@ -5094,7 +5095,7 @@
#CUSTOM_AUTOCONF_INCLUDE
# Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1467960715
+DATE_WHEN_GENERATED=1468427332
###############################################################################
#
@@ -47232,6 +47233,28 @@
BUILD_SYSROOT_CFLAGS="$SYSROOT_CFLAGS"
BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS"
BUILD_AR="$AR"
+
+
+ if test "x$CC_VERSION_NUMBER" != "x$CXX_VERSION_NUMBER"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C and C++ compiler have different version numbers, $CC_VERSION_NUMBER vs $CXX_VERSION_NUMBER." >&5
+$as_echo "$as_me: WARNING: C and C++ compiler have different version numbers, $CC_VERSION_NUMBER vs $CXX_VERSION_NUMBER." >&2;}
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: This typically indicates a broken setup, and is not supported" >&5
+$as_echo "$as_me: WARNING: This typically indicates a broken setup, and is not supported" >&2;}
+ fi
+
+ # We only check CC_VERSION_NUMBER since we assume CXX_VERSION_NUMBER is equal.
+ if [[ "[$]CC_VERSION_NUMBER" =~ (.*\.){3} ]] ; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C compiler version number has more than three parts (X.Y.Z): $CC_VERSION_NUMBER. Comparisons might be wrong." >&5
+$as_echo "$as_me: WARNING: C compiler version number has more than three parts (X.Y.Z): $CC_VERSION_NUMBER. Comparisons might be wrong." >&2;}
+ fi
+
+ if [[ "[$]CC_VERSION_NUMBER" =~ [0-9]{6} ]] ; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C compiler version number has a part larger than 99999: $CC_VERSION_NUMBER. Comparisons might be wrong." >&5
+$as_echo "$as_me: WARNING: C compiler version number has a part larger than 99999: $CC_VERSION_NUMBER. Comparisons might be wrong." >&2;}
+ fi
+
+ OPENJDK_BUILD_COMPARABLE_ACTUAL_VERSION=`$AWK -F. '{ printf("%05d%05d%05d\n", $1, $2, $3) }' <<< "$CC_VERSION_NUMBER"`
+
fi
@@ -49781,6 +49804,7 @@
CXXFLAGS_JDK="${CXXFLAGS_JDK} ${CXXSTD_CXXFLAG}"
+ JVM_CFLAGS="${JVM_CFLAGS} ${CXXSTD_CXXFLAG}"
fi
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
@@ -49913,542 +49937,12 @@
# runs afoul of the more aggressive versions of these optimisations.
# Notably, value range propagation now assumes that the this pointer of C++
# member functions is non-null.
- NO_NULL_POINTER_CHECK_CFLAG="-fno-delete-null-pointer-checks"
-
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- # Execute function body
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C compiler supports \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"" >&5
-$as_echo_n "checking if the C compiler supports \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"... " >&6; }
- supports=yes
-
- saved_cflags="$CFLAGS"
- CFLAGS="$CFLAGS $NO_NULL_POINTER_CHECK_CFLAG -Werror"
- ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-int i;
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-else
- supports=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
- CFLAGS="$saved_cflags"
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
- if test "x$supports" = "xyes" ; then
- :
- C_COMP_SUPPORTS="yes"
- else
- :
- C_COMP_SUPPORTS="no"
- fi
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- # Execute function body
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- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C++ compiler supports \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"" >&5
-$as_echo_n "checking if the C++ compiler supports \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"... " >&6; }
- supports=yes
-
- saved_cxxflags="$CXXFLAGS"
- CXXFLAGS="$CXXFLAG $NO_NULL_POINTER_CHECK_CFLAG -Werror"
- ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-int i;
-_ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-
-else
- supports=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
- CXXFLAGS="$saved_cxxflags"
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
- if test "x$supports" = "xyes" ; then
- :
- CXX_COMP_SUPPORTS="yes"
- else
- :
- CXX_COMP_SUPPORTS="no"
- fi
-
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- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if both compilers support \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"" >&5
-$as_echo_n "checking if both compilers support \"$NO_NULL_POINTER_CHECK_CFLAG -Werror\"... " >&6; }
- supports=no
- if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
- if test "x$supports" = "xyes" ; then
- :
-
- else
- :
- NO_NULL_POINTER_CHECK_CFLAG=""
- fi
-
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- NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
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- # Execute function body
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- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C compiler supports \"$NO_LIFETIME_DSE_CFLAG -Werror\"" >&5
-$as_echo_n "checking if the C compiler supports \"$NO_LIFETIME_DSE_CFLAG -Werror\"... " >&6; }
- supports=yes
-
- saved_cflags="$CFLAGS"
- CFLAGS="$CFLAGS $NO_LIFETIME_DSE_CFLAG -Werror"
- ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-int i;
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-else
- supports=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
- CFLAGS="$saved_cflags"
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
- if test "x$supports" = "xyes" ; then
- :
- C_COMP_SUPPORTS="yes"
- else
- :
- C_COMP_SUPPORTS="no"
- fi
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- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C++ compiler supports \"$NO_LIFETIME_DSE_CFLAG -Werror\"" >&5
-$as_echo_n "checking if the C++ compiler supports \"$NO_LIFETIME_DSE_CFLAG -Werror\"... " >&6; }
- supports=yes
-
- saved_cxxflags="$CXXFLAGS"
- CXXFLAGS="$CXXFLAG $NO_LIFETIME_DSE_CFLAG -Werror"
- ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-int i;
-_ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-
-else
- supports=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
- CXXFLAGS="$saved_cxxflags"
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
- if test "x$supports" = "xyes" ; then
- :
- CXX_COMP_SUPPORTS="yes"
- else
- :
- CXX_COMP_SUPPORTS="no"
- fi
-
-
-
-
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- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if both compilers support \"$NO_LIFETIME_DSE_CFLAG -Werror\"" >&5
-$as_echo_n "checking if both compilers support \"$NO_LIFETIME_DSE_CFLAG -Werror\"... " >&6; }
- supports=no
- if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports" >&5
-$as_echo "$supports" >&6; }
- if test "x$supports" = "xyes" ; then
- :
-
- else
- :
- NO_LIFETIME_DSE_CFLAG=""
- fi
-
-
-
-
-
-
- CFLAGS_JDK="${CFLAGS_JDK} ${NO_NULL_POINTER_CHECK_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
-
-
+ NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
+ NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}" >&5
+$as_echo "$as_me: GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}" >&6;}
+ CFLAGS_JDK="$CFLAGS_JDK ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
+ JVM_CFLAGS="$JVM_CFLAGS ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
else
:
@@ -51127,6 +50621,7 @@
OPENJDK_BUILD_CXXFLAGS_JDK="${OPENJDK_BUILD_CXXFLAGS_JDK} ${OPENJDK_BUILD_CXXSTD_CXXFLAG}"
+ OPENJDK_BUILD_JVM_CFLAGS="${OPENJDK_BUILD_JVM_CFLAGS} ${OPENJDK_BUILD_CXXSTD_CXXFLAG}"
fi
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
@@ -51255,6 +50750,17 @@
if test $OPENJDK_BUILD_COMPARABLE_ACTUAL_VERSION -ge $COMPARABLE_REFERENCE_VERSION ; then
:
+ # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
+ # runs afoul of the more aggressive versions of these optimisations.
+ # Notably, value range propagation now assumes that the this pointer of C++
+ # member functions is non-null.
+ NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
+ NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}" >&5
+$as_echo "$as_me: GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}" >&6;}
+ OPENJDK_BUILD_CFLAGS_JDK="$OPENJDK_BUILD_CFLAGS_JDK ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
+ OPENJDK_BUILD_JVM_CFLAGS="$OPENJDK_BUILD_JVM_CFLAGS ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
+
else
:
--- a/common/autoconf/spec.gmk.in Fri Jul 08 12:17:09 2016 -0700
+++ b/common/autoconf/spec.gmk.in Sun Jul 10 22:00:03 2016 +0100
@@ -391,8 +391,6 @@
WARNINGS_AS_ERRORS := @WARNINGS_AS_ERRORS@
CFLAGS_CCACHE:=@CFLAGS_CCACHE@
-NO_NULL_POINTER_CHECK_FLAG=@NO_NULL_POINTER_CHECK_CFLAG@
-NO_LIFETIME_DSE_CFLAG=@NO_LIFETIME_DSE_CFLAG@
CXXSTD_CXXFLAG=@CXXSTD_CXXFLAG@
# Tools that potentially need to be cross compilation aware.
--- a/common/autoconf/toolchain.m4 Fri Jul 08 12:17:09 2016 -0700
+++ b/common/autoconf/toolchain.m4 Sun Jul 10 22:00:03 2016 +0100
@@ -831,6 +831,8 @@
BUILD_SYSROOT_CFLAGS="$SYSROOT_CFLAGS"
BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS"
BUILD_AR="$AR"
+
+ TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS([], [OPENJDK_BUILD_])
fi
AC_SUBST(BUILD_CC)