979 lines
37 KiB
Plaintext
979 lines
37 KiB
Plaintext
#
|
|
# Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
|
|
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
#
|
|
# This code is free software; you can redistribute it and/or modify it
|
|
# under the terms of the GNU General Public License version 2 only, as
|
|
# published by the Free Software Foundation. Oracle designates this
|
|
# particular file as subject to the "Classpath" exception as provided
|
|
# by Oracle in the LICENSE file that accompanied this code.
|
|
#
|
|
# This code is distributed in the hope that it will be useful, but WITHOUT
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
# version 2 for more details (a copy is included in the LICENSE file that
|
|
# accompanied this code).
|
|
#
|
|
# You should have received a copy of the GNU General Public License version
|
|
# 2 along with this work; if not, write to the Free Software Foundation,
|
|
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
#
|
|
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
# or visit www.oracle.com if you need additional information or have any
|
|
# questions.
|
|
#
|
|
|
|
################################################################################
|
|
#
|
|
# Setup flags for C/C++ compiler
|
|
#
|
|
|
|
################################################################################
|
|
#
|
|
# How to compile shared libraries.
|
|
#
|
|
AC_DEFUN([FLAGS_SETUP_SHARED_LIBS],
|
|
[
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
# Default works for linux, might work on other platforms as well.
|
|
SHARED_LIBRARY_FLAGS='-shared'
|
|
# --disable-new-dtags forces use of RPATH instead of RUNPATH for rpaths.
|
|
# This protects internal library dependencies within the JDK from being
|
|
# overridden using LD_LIBRARY_PATH. See JDK-8326891 for more information.
|
|
SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1 -Wl,--disable-new-dtags'
|
|
SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
|
|
SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
|
|
|
|
elif test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
|
|
# Linking is different on MacOSX
|
|
SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0"
|
|
SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)'
|
|
SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
|
|
SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
|
|
|
|
elif test "x$OPENJDK_TARGET_OS" = xaix; then
|
|
# Linking is different on aix
|
|
SHARED_LIBRARY_FLAGS="-shared -Wl,-bM:SRE -Wl,-bnoentry"
|
|
SET_EXECUTABLE_ORIGIN=""
|
|
SET_SHARED_LIBRARY_ORIGIN=''
|
|
SET_SHARED_LIBRARY_NAME=''
|
|
|
|
else
|
|
# Default works for linux, might work on other platforms as well.
|
|
SHARED_LIBRARY_FLAGS='-shared'
|
|
SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1'
|
|
if test "x$OPENJDK_TARGET_OS" = xlinux; then
|
|
SET_EXECUTABLE_ORIGIN="$SET_EXECUTABLE_ORIGIN -Wl,--disable-new-dtags"
|
|
fi
|
|
SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
|
|
|
|
# arm specific settings
|
|
if test "x$OPENJDK_TARGET_CPU" = "xarm"; then
|
|
# '-Wl,-z,origin' isn't used on arm.
|
|
SET_SHARED_LIBRARY_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1'
|
|
else
|
|
SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
|
|
fi
|
|
fi
|
|
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
SHARED_LIBRARY_FLAGS="-dll"
|
|
SET_EXECUTABLE_ORIGIN=''
|
|
SET_SHARED_LIBRARY_ORIGIN=''
|
|
SET_SHARED_LIBRARY_NAME=''
|
|
fi
|
|
|
|
AC_SUBST(SET_EXECUTABLE_ORIGIN)
|
|
AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
|
|
AC_SUBST(SET_SHARED_LIBRARY_NAME)
|
|
AC_SUBST(SHARED_LIBRARY_FLAGS)
|
|
])
|
|
|
|
AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS],
|
|
[
|
|
# By default don't set any specific assembler debug
|
|
# info flags for toolchains unless we know they work.
|
|
# See JDK-8207057.
|
|
ASFLAGS_DEBUG_SYMBOLS=""
|
|
|
|
# Debug prefix mapping if supported by compiler
|
|
DEBUG_PREFIX_CFLAGS=
|
|
|
|
# Debug symbols
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
|
|
# Check if compiler supports -fdebug-prefix-map. If so, use that to make
|
|
# the debug symbol paths resolve to paths relative to the workspace root.
|
|
workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/"
|
|
DEBUG_PREFIX_CFLAGS="-fdebug-prefix-map=${workspace_root_trailing_slash}="
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${DEBUG_PREFIX_CFLAGS}],
|
|
IF_FALSE: [
|
|
DEBUG_PREFIX_CFLAGS=
|
|
],
|
|
IF_TRUE: [
|
|
# Add debug prefix map gcc system include paths, as they cause
|
|
# non-deterministic debug paths depending on gcc path location.
|
|
DEBUG_PREFIX_MAP_GCC_INCLUDE_PATHS
|
|
|
|
# Add debug prefix map for OUTPUTDIR to handle the scenario when
|
|
# it is not located within WORKSPACE_ROOT
|
|
outputdir_slash="${OUTPUTDIR%/}/"
|
|
DEBUG_PREFIX_CFLAGS="$DEBUG_PREFIX_CFLAGS -fdebug-prefix-map=${outputdir_slash}="
|
|
]
|
|
)
|
|
fi
|
|
|
|
CFLAGS_DEBUG_SYMBOLS="-g -gdwarf-4"
|
|
ASFLAGS_DEBUG_SYMBOLS="-g"
|
|
elif test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
|
|
# Check if compiler supports -fdebug-prefix-map. If so, use that to make
|
|
# the debug symbol paths resolve to paths relative to the workspace root.
|
|
workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/"
|
|
DEBUG_PREFIX_CFLAGS="-fdebug-prefix-map=${workspace_root_trailing_slash}="
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${DEBUG_PREFIX_CFLAGS}],
|
|
IF_FALSE: [
|
|
DEBUG_PREFIX_CFLAGS=
|
|
]
|
|
)
|
|
fi
|
|
|
|
# -gdwarf-4 and -gdwarf-aranges were introduced in clang 5.0
|
|
GDWARF_FLAGS="-gdwarf-4 -gdwarf-aranges"
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${GDWARF_FLAGS}],
|
|
IF_FALSE: [GDWARF_FLAGS=""])
|
|
|
|
CFLAGS_DEBUG_SYMBOLS="-g ${GDWARF_FLAGS}"
|
|
ASFLAGS_DEBUG_SYMBOLS="-g"
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
CFLAGS_DEBUG_SYMBOLS="-Z7"
|
|
fi
|
|
|
|
if test "x$DEBUG_PREFIX_CFLAGS" != x; then
|
|
CFLAGS_DEBUG_SYMBOLS="$CFLAGS_DEBUG_SYMBOLS $DEBUG_PREFIX_CFLAGS"
|
|
ASFLAGS_DEBUG_SYMBOLS="$ASFLAGS_DEBUG_SYMBOLS $DEBUG_PREFIX_CFLAGS"
|
|
fi
|
|
|
|
AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
|
|
AC_SUBST(ASFLAGS_DEBUG_SYMBOLS)
|
|
])
|
|
|
|
# gcc will embed the full system include paths in the debug info
|
|
# resulting in non-deterministic debug symbol files and thus
|
|
# non-reproducible native libraries if gcc includes are located
|
|
# in different paths.
|
|
# Add -fdebug-prefix-map'ings for root and gcc include paths,
|
|
# pointing to a common set of folders so that the binaries are deterministic:
|
|
# root include : /usr/include
|
|
# gcc include : /usr/local/gcc_include
|
|
# g++ include : /usr/local/gxx_include
|
|
AC_DEFUN([DEBUG_PREFIX_MAP_GCC_INCLUDE_PATHS],
|
|
[
|
|
# Determine gcc system include paths.
|
|
# Assume default roots to start with:
|
|
GCC_ROOT_INCLUDE="/usr/include"
|
|
|
|
# Determine is sysroot or devkit specified?
|
|
if test "x$SYSROOT" != "x"; then
|
|
GCC_ROOT_INCLUDE="${SYSROOT%/}/usr/include"
|
|
fi
|
|
|
|
# Add root include mapping => /usr/include
|
|
GCC_INCLUDE_DEBUG_MAP_FLAGS="-fdebug-prefix-map=${GCC_ROOT_INCLUDE}/=/usr/include/"
|
|
|
|
# Add gcc system include mapping => /usr/local/gcc_include
|
|
# Find location of stddef.h using build C compiler
|
|
GCC_SYSTEM_INCLUDE=`$ECHO "#include <stddef.h>" | \
|
|
$CC $CFLAGS -v -E - 2>&1 | \
|
|
$GREP stddef | $TAIL -1 | $TR -s " " | $CUT -d'"' -f2`
|
|
if test "x$GCC_SYSTEM_INCLUDE" != "x"; then
|
|
GCC_SYSTEM_INCLUDE=`$DIRNAME $GCC_SYSTEM_INCLUDE`
|
|
GCC_INCLUDE_DEBUG_MAP_FLAGS="$GCC_INCLUDE_DEBUG_MAP_FLAGS \
|
|
-fdebug-prefix-map=${GCC_SYSTEM_INCLUDE}/=/usr/local/gcc_include/"
|
|
fi
|
|
|
|
# Add g++ system include mapping => /usr/local/gxx_include
|
|
# Find location of cstddef using build C++ compiler
|
|
GXX_SYSTEM_INCLUDE=`$ECHO "#include <cstddef>" | \
|
|
$CXX $CXXFLAGS -v -E -x c++ - 2>&1 | \
|
|
$GREP cstddef | $TAIL -1 | $TR -s " " | $CUT -d'"' -f2`
|
|
if test "x$GXX_SYSTEM_INCLUDE" != "x"; then
|
|
GXX_SYSTEM_INCLUDE=`$DIRNAME $GXX_SYSTEM_INCLUDE`
|
|
GCC_INCLUDE_DEBUG_MAP_FLAGS="$GCC_INCLUDE_DEBUG_MAP_FLAGS \
|
|
-fdebug-prefix-map=${GXX_SYSTEM_INCLUDE}/=/usr/local/gxx_include/"
|
|
fi
|
|
|
|
# Add to debug prefix cflags
|
|
DEBUG_PREFIX_CFLAGS="$DEBUG_PREFIX_CFLAGS $GCC_INCLUDE_DEBUG_MAP_FLAGS"
|
|
])
|
|
|
|
AC_DEFUN([FLAGS_SETUP_WARNINGS],
|
|
[
|
|
# Set default value.
|
|
WARNINGS_AS_ERRORS_DEFAULT=true
|
|
|
|
UTIL_ARG_ENABLE(NAME: warnings-as-errors, DEFAULT: $WARNINGS_AS_ERRORS_DEFAULT,
|
|
RESULT: WARNINGS_AS_ERRORS,
|
|
DEFAULT_DESC: [auto],
|
|
DESC: [consider native warnings to be an error])
|
|
AC_SUBST(WARNINGS_AS_ERRORS)
|
|
|
|
case "${TOOLCHAIN_TYPE}" in
|
|
microsoft)
|
|
DISABLE_WARNING_PREFIX="-wd"
|
|
BUILD_CC_DISABLE_WARNING_PREFIX="-wd"
|
|
CFLAGS_WARNINGS_ARE_ERRORS="-WX"
|
|
|
|
WARNINGS_ENABLE_ALL="-W3"
|
|
DISABLED_WARNINGS="4800 5105"
|
|
;;
|
|
|
|
gcc)
|
|
DISABLE_WARNING_PREFIX="-Wno-"
|
|
BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
|
|
CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
|
|
|
|
# Additional warnings that are not activated by -Wall and -Wextra
|
|
WARNINGS_ENABLE_ADDITIONAL="-Wpointer-arith -Wreturn-type -Wsign-compare \
|
|
-Wtrampolines -Wundef -Wunused-const-variable=1 -Wunused-function \
|
|
-Wunused-result -Wunused-value"
|
|
WARNINGS_ENABLE_ADDITIONAL_CXX="-Woverloaded-virtual -Wreorder"
|
|
WARNINGS_ENABLE_ALL_CFLAGS="-Wall -Wextra -Wformat=2 $WARNINGS_ENABLE_ADDITIONAL"
|
|
WARNINGS_ENABLE_ALL_CXXFLAGS="$WARNINGS_ENABLE_ALL_CFLAGS $WARNINGS_ENABLE_ADDITIONAL_CXX"
|
|
|
|
# These warnings will never be turned on, since they generate too many
|
|
# false positives.
|
|
DISABLED_WARNINGS="unused-parameter"
|
|
# gcc10/11 on ppc generate lots of abi warnings about layout of aggregates containing vectors
|
|
if test "x$OPENJDK_TARGET_CPU_ARCH" = "xppc"; then
|
|
DISABLED_WARNINGS="$DISABLED_WARNINGS psabi"
|
|
fi
|
|
;;
|
|
|
|
clang)
|
|
DISABLE_WARNING_PREFIX="-Wno-"
|
|
BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
|
|
CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
|
|
|
|
# Additional warnings that are not activated by -Wall and -Wextra
|
|
WARNINGS_ENABLE_ADDITIONAL="-Wpointer-arith -Wsign-compare -Wreorder \
|
|
-Wunused-function -Wundef -Wunused-value -Woverloaded-virtual"
|
|
WARNINGS_ENABLE_ALL="-Wall -Wextra -Wformat=2 $WARNINGS_ENABLE_ADDITIONAL"
|
|
|
|
# These warnings will never be turned on, since they generate too many
|
|
# false positives.
|
|
DISABLED_WARNINGS="unknown-warning-option unused-parameter"
|
|
;;
|
|
esac
|
|
AC_SUBST(DISABLE_WARNING_PREFIX)
|
|
AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX)
|
|
AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
|
|
AC_SUBST(DISABLED_WARNINGS)
|
|
AC_SUBST(DISABLED_WARNINGS_C)
|
|
AC_SUBST(DISABLED_WARNINGS_CXX)
|
|
])
|
|
|
|
AC_DEFUN([FLAGS_SETUP_QUALITY_CHECKS],
|
|
[
|
|
# bounds, memory and behavior checking options
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
case $DEBUG_LEVEL in
|
|
release )
|
|
# no adjustment
|
|
;;
|
|
fastdebug )
|
|
# no adjustment
|
|
;;
|
|
slowdebug )
|
|
# FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it
|
|
# gets added conditionally on whether we produce debug symbols or not.
|
|
# This is most likely not really correct.
|
|
|
|
# Add runtime stack smashing and undefined behavior checks.
|
|
CFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1"
|
|
CXXFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1"
|
|
|
|
JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -fstack-protector-all --param ssp-buffer-size=1"
|
|
;;
|
|
esac
|
|
fi
|
|
])
|
|
|
|
AC_DEFUN([FLAGS_SETUP_OPTIMIZATION],
|
|
[
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
C_O_FLAG_HIGHEST_JVM="-O3"
|
|
C_O_FLAG_HIGHEST="-O3"
|
|
C_O_FLAG_HI="-O3"
|
|
C_O_FLAG_NORM="-O2"
|
|
C_O_FLAG_SIZE="-Os"
|
|
C_O_FLAG_DEBUG="-O0"
|
|
C_O_FLAG_DEBUG_JVM="-O0"
|
|
C_O_FLAG_NONE="-O0"
|
|
# -D_FORTIFY_SOURCE=2 hardening option needs optimization (at least -O1) enabled
|
|
# set for lower O-levels -U_FORTIFY_SOURCE to overwrite previous settings
|
|
if test "x$OPENJDK_TARGET_OS" = xlinux -a "x$DEBUG_LEVEL" = "xfastdebug"; then
|
|
DISABLE_FORTIFY_CFLAGS="-U_FORTIFY_SOURCE"
|
|
# ASan doesn't work well with _FORTIFY_SOURCE
|
|
# See https://github.com/google/sanitizers/wiki/AddressSanitizer#faq
|
|
if test "x$ASAN_ENABLED" = xyes; then
|
|
ENABLE_FORTIFY_CFLAGS="${DISABLE_FORTIFY_CFLAGS}"
|
|
else
|
|
ENABLE_FORTIFY_CFLAGS="-D_FORTIFY_SOURCE=2"
|
|
fi
|
|
C_O_FLAG_HIGHEST_JVM="${C_O_FLAG_HIGHEST_JVM} ${ENABLE_FORTIFY_CFLAGS}"
|
|
C_O_FLAG_HIGHEST="${C_O_FLAG_HIGHEST} ${ENABLE_FORTIFY_CFLAGS}"
|
|
C_O_FLAG_HI="${C_O_FLAG_HI} ${ENABLE_FORTIFY_CFLAGS}"
|
|
C_O_FLAG_NORM="${C_O_FLAG_NORM} ${ENABLE_FORTIFY_CFLAGS}"
|
|
C_O_FLAG_SIZE="${C_O_FLAG_SIZE} ${DISABLE_FORTIFY_CFLAGS}"
|
|
C_O_FLAG_DEBUG="${C_O_FLAG_DEBUG} ${DISABLE_FORTIFY_CFLAGS}"
|
|
C_O_FLAG_DEBUG_JVM="${C_O_FLAG_DEBUG_JVM} ${DISABLE_FORTIFY_CFLAGS}"
|
|
C_O_FLAG_NONE="${C_O_FLAG_NONE} ${DISABLE_FORTIFY_CFLAGS}"
|
|
fi
|
|
elif test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
if test "x$OPENJDK_TARGET_OS" = xaix; then
|
|
C_O_FLAG_HIGHEST_JVM="-O3 -finline-functions"
|
|
C_O_FLAG_HIGHEST="-O3 -finline-functions"
|
|
C_O_FLAG_HI="-O3 -finline-functions"
|
|
else
|
|
C_O_FLAG_HIGHEST_JVM="-O3"
|
|
C_O_FLAG_HIGHEST="-O3"
|
|
C_O_FLAG_HI="-O3"
|
|
fi
|
|
C_O_FLAG_NORM="-O2"
|
|
C_O_FLAG_DEBUG_JVM="-O0"
|
|
C_O_FLAG_SIZE="-Os"
|
|
C_O_FLAG_DEBUG="-O0"
|
|
C_O_FLAG_NONE="-O0"
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
C_O_FLAG_HIGHEST_JVM="-O2 -Oy-"
|
|
C_O_FLAG_HIGHEST="-O2"
|
|
C_O_FLAG_HI="-O1"
|
|
C_O_FLAG_NORM="-O1"
|
|
C_O_FLAG_DEBUG="-Od"
|
|
C_O_FLAG_DEBUG_JVM=""
|
|
C_O_FLAG_NONE="-Od"
|
|
C_O_FLAG_SIZE="-Os"
|
|
fi
|
|
|
|
# Now copy to C++ flags
|
|
CXX_O_FLAG_HIGHEST_JVM="$C_O_FLAG_HIGHEST_JVM"
|
|
CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
|
|
CXX_O_FLAG_HI="$C_O_FLAG_HI"
|
|
CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
|
|
CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG"
|
|
CXX_O_FLAG_DEBUG_JVM="$C_O_FLAG_DEBUG_JVM"
|
|
CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
|
|
CXX_O_FLAG_SIZE="$C_O_FLAG_SIZE"
|
|
|
|
# Adjust optimization flags according to debug level.
|
|
case $DEBUG_LEVEL in
|
|
release )
|
|
# no adjustment
|
|
;;
|
|
fastdebug )
|
|
# Not quite so much optimization
|
|
C_O_FLAG_HI="$C_O_FLAG_NORM"
|
|
CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
|
|
;;
|
|
slowdebug )
|
|
# Disable optimization
|
|
C_O_FLAG_HIGHEST_JVM="$C_O_FLAG_DEBUG_JVM"
|
|
C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG"
|
|
C_O_FLAG_HI="$C_O_FLAG_DEBUG"
|
|
C_O_FLAG_NORM="$C_O_FLAG_DEBUG"
|
|
C_O_FLAG_SIZE="$C_O_FLAG_DEBUG"
|
|
CXX_O_FLAG_HIGHEST_JVM="$CXX_O_FLAG_DEBUG_JVM"
|
|
CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG"
|
|
CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG"
|
|
CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG"
|
|
CXX_O_FLAG_SIZE="$CXX_O_FLAG_DEBUG"
|
|
;;
|
|
esac
|
|
|
|
AC_SUBST(C_O_FLAG_HIGHEST_JVM)
|
|
AC_SUBST(C_O_FLAG_HIGHEST)
|
|
AC_SUBST(C_O_FLAG_HI)
|
|
AC_SUBST(C_O_FLAG_NORM)
|
|
AC_SUBST(C_O_FLAG_NONE)
|
|
AC_SUBST(C_O_FLAG_SIZE)
|
|
AC_SUBST(CXX_O_FLAG_HIGHEST_JVM)
|
|
AC_SUBST(CXX_O_FLAG_HIGHEST)
|
|
AC_SUBST(CXX_O_FLAG_HI)
|
|
AC_SUBST(CXX_O_FLAG_NORM)
|
|
AC_SUBST(CXX_O_FLAG_NONE)
|
|
AC_SUBST(CXX_O_FLAG_SIZE)
|
|
])
|
|
|
|
AC_DEFUN([FLAGS_SETUP_CFLAGS],
|
|
[
|
|
### CFLAGS
|
|
|
|
FLAGS_SETUP_CFLAGS_HELPER
|
|
|
|
FLAGS_OS=$OPENJDK_TARGET_OS
|
|
FLAGS_OS_TYPE=$OPENJDK_TARGET_OS_TYPE
|
|
FLAGS_CPU=$OPENJDK_TARGET_CPU
|
|
FLAGS_CPU_ARCH=$OPENJDK_TARGET_CPU_ARCH
|
|
FLAGS_CPU_BITS=$OPENJDK_TARGET_CPU_BITS
|
|
FLAGS_CPU_ENDIAN=$OPENJDK_TARGET_CPU_ENDIAN
|
|
FLAGS_CPU_LEGACY=$OPENJDK_TARGET_CPU_LEGACY
|
|
FLAGS_CPU_LEGACY_LIB=$OPENJDK_TARGET_CPU_LEGACY_LIB
|
|
|
|
FLAGS_SETUP_CFLAGS_CPU_DEP([TARGET])
|
|
|
|
# Repeat the check for the BUILD_CC and BUILD_CXX. Need to also reset CFLAGS
|
|
# since any target specific flags will likely not work with the build compiler.
|
|
CC_OLD="$CC"
|
|
CXX_OLD="$CXX"
|
|
CFLAGS_OLD="$CFLAGS"
|
|
CXXFLAGS_OLD="$CXXFLAGS"
|
|
CC="$BUILD_CC"
|
|
CXX="$BUILD_CXX"
|
|
CFLAGS=""
|
|
CXXFLAGS=""
|
|
|
|
FLAGS_OS=$OPENJDK_BUILD_OS
|
|
FLAGS_OS_TYPE=$OPENJDK_BUILD_OS_TYPE
|
|
FLAGS_CPU=$OPENJDK_BUILD_CPU
|
|
FLAGS_CPU_ARCH=$OPENJDK_BUILD_CPU_ARCH
|
|
FLAGS_CPU_BITS=$OPENJDK_BUILD_CPU_BITS
|
|
FLAGS_CPU_ENDIAN=$OPENJDK_BUILD_CPU_ENDIAN
|
|
FLAGS_CPU_LEGACY=$OPENJDK_BUILD_CPU_LEGACY
|
|
FLAGS_CPU_LEGACY_LIB=$OPENJDK_BUILD_CPU_LEGACY_LIB
|
|
|
|
FLAGS_SETUP_CFLAGS_CPU_DEP([BUILD], [OPENJDK_BUILD_], [BUILD_])
|
|
|
|
CC="$CC_OLD"
|
|
CXX="$CXX_OLD"
|
|
CFLAGS="$CFLAGS_OLD"
|
|
CXXFLAGS="$CXXFLAGS_OLD"
|
|
])
|
|
|
|
################################################################################
|
|
# platform independent
|
|
AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER],
|
|
[
|
|
#### OS DEFINES, these should be independent on toolchain
|
|
if test "x$OPENJDK_TARGET_OS" = xlinux; then
|
|
CFLAGS_OS_DEF_JVM="-DLINUX -D_FILE_OFFSET_BITS=64"
|
|
CFLAGS_OS_DEF_JDK="-D_GNU_SOURCE -D_REENTRANT -D_FILE_OFFSET_BITS=64"
|
|
elif test "x$OPENJDK_TARGET_OS" = xmacosx; then
|
|
CFLAGS_OS_DEF_JVM="-D_ALLBSD_SOURCE -D_DARWIN_C_SOURCE -D_XOPEN_SOURCE"
|
|
CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
|
|
elif test "x$OPENJDK_TARGET_OS" = xaix; then
|
|
CFLAGS_OS_DEF_JVM="-DAIX -D_LARGE_FILES"
|
|
CFLAGS_OS_DEF_JDK="-D_LARGE_FILES"
|
|
elif test "x$OPENJDK_TARGET_OS" = xbsd; then
|
|
CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE"
|
|
elif test "x$OPENJDK_TARGET_OS" = xwindows; then
|
|
CFLAGS_OS_DEF_JVM="-D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_"
|
|
fi
|
|
|
|
CFLAGS_OS_DEF_JDK="$CFLAGS_OS_DEF_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
|
|
|
|
#### GLOBAL DEFINES
|
|
# Set some common defines. These works for all compilers, but assume
|
|
# -D is universally accepted.
|
|
|
|
# Always enable optional macros for VM.
|
|
ALWAYS_CFLAGS_JVM="-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS"
|
|
|
|
##############################################################################
|
|
|
|
# Adjust flags according to debug level.
|
|
# Setup debug/release defines
|
|
if test "x$DEBUG_LEVEL" = xrelease; then
|
|
DEBUG_CFLAGS_JDK="-DNDEBUG"
|
|
else
|
|
DEBUG_CFLAGS_JDK="-DDEBUG"
|
|
|
|
if test "x$TOOLCHAIN_TYPE" = xclang && test "x$OPENJDK_TARGET_OS" = xaix; then
|
|
DEBUG_CFLAGS_JVM="-fpic -mcmodel=large"
|
|
fi
|
|
fi
|
|
|
|
if test "x$DEBUG_LEVEL" != xrelease; then
|
|
DEBUG_OPTIONS_FLAGS_JDK="$CFLAGS_DEBUG_OPTIONS"
|
|
DEBUG_SYMBOLS_CFLAGS_JDK="$CFLAGS_DEBUG_SYMBOLS"
|
|
fi
|
|
|
|
#### TOOLCHAIN DEFINES
|
|
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
ALWAYS_DEFINES_JVM="-D_GNU_SOURCE -D_REENTRANT"
|
|
elif test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
ALWAYS_DEFINES_JVM="-D_GNU_SOURCE"
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
# _WIN32_WINNT=0x0602 means access APIs for Windows 8 and above. See
|
|
# https://docs.microsoft.com/en-us/cpp/porting/modifying-winver-and-win32-winnt?view=msvc-170
|
|
ALWAYS_DEFINES="-DWIN32_LEAN_AND_MEAN -D_WIN32_WINNT=0x0602 \
|
|
-D_CRT_DECLARE_NONSTDC_NAMES -D_CRT_NONSTDC_NO_WARNINGS -D_CRT_SECURE_NO_WARNINGS"
|
|
ALWAYS_DEFINES_JDK="$ALWAYS_DEFINES -DWIN32 -DIAL"
|
|
ALWAYS_DEFINES_JVM="$ALWAYS_DEFINES -DNOMINMAX"
|
|
fi
|
|
|
|
##############################################################################
|
|
#
|
|
#
|
|
# CFLAGS BASIC
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
# COMMON to gcc and clang
|
|
TOOLCHAIN_CFLAGS_JVM="-pipe -fno-rtti -fno-exceptions \
|
|
-fvisibility=hidden -fno-strict-aliasing -fno-omit-frame-pointer"
|
|
fi
|
|
|
|
if test "x$TOOLCHAIN_TYPE" = xclang && test "x$OPENJDK_TARGET_OS" = xaix; then
|
|
# clang compiler on aix needs -ffunction-sections
|
|
TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -ffunction-sections -ftls-model -fno-math-errno -fstack-protector"
|
|
TOOLCHAIN_CFLAGS_JDK="-ffunction-sections -fsigned-char -fstack-protector"
|
|
fi
|
|
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -fstack-protector"
|
|
TOOLCHAIN_CFLAGS_JDK="-fvisibility=hidden -pipe -fstack-protector"
|
|
# reduce lib size on linux in link step, this needs also special compile flags
|
|
# do this on s390x also for libjvm (where serviceability agent is not supported)
|
|
if test "x$ENABLE_LINKTIME_GC" = xtrue; then
|
|
TOOLCHAIN_CFLAGS_JDK="$TOOLCHAIN_CFLAGS_JDK -ffunction-sections -fdata-sections"
|
|
if test "x$OPENJDK_TARGET_CPU" = xs390x && test "x$DEBUG_LEVEL" == xrelease; then
|
|
TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -ffunction-sections -fdata-sections"
|
|
fi
|
|
fi
|
|
# technically NOT for CXX (but since this gives *worse* performance, use
|
|
# no-strict-aliasing everywhere!)
|
|
TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing"
|
|
|
|
elif test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
# Restrict the debug information created by Clang to avoid
|
|
# too big object files and speed the build up a little bit
|
|
# (see http://llvm.org/bugs/show_bug.cgi?id=7554)
|
|
TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -flimit-debug-info"
|
|
|
|
# In principle the stack alignment below is cpu- and ABI-dependent and
|
|
# should agree with values of StackAlignmentInBytes in various
|
|
# src/hotspot/cpu/*/globalDefinitions_*.hpp files, but this value currently
|
|
# works for all platforms.
|
|
TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -mno-omit-leaf-frame-pointer -mstack-alignment=16"
|
|
|
|
if test "x$OPENJDK_TARGET_OS" = xlinux; then
|
|
if test "x$DEBUG_LEVEL" = xrelease; then
|
|
# Clang does not inline as much as GCC does for functions with "inline" keyword by default.
|
|
# This causes noticeable slowdown in pause time for G1, and possibly in other areas.
|
|
# Increasing the inline hint threshold avoids the slowdown for Clang-built JVM.
|
|
TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -mllvm -inlinehint-threshold=100000"
|
|
fi
|
|
TOOLCHAIN_CFLAGS_JDK="-pipe"
|
|
TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX
|
|
fi
|
|
TOOLCHAIN_CFLAGS_JDK="$TOOLCHAIN_CFLAGS_JDK -fvisibility=hidden"
|
|
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
# The -utf-8 option sets source and execution character sets to UTF-8 to enable correct
|
|
# compilation of all source files regardless of the active code page on Windows.
|
|
TOOLCHAIN_CFLAGS_JVM="-nologo -MD -Zc:preprocessor -Zc:inline -permissive- -utf-8 -MP"
|
|
TOOLCHAIN_CFLAGS_JDK="-nologo -MD -Zc:preprocessor -Zc:inline -permissive- -utf-8 -Zc:wchar_t-"
|
|
fi
|
|
|
|
# CFLAGS C language level for JDK sources (hotspot only uses C++)
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
LANGSTD_CFLAGS="-std=c11"
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
LANGSTD_CFLAGS="-std:c11"
|
|
fi
|
|
TOOLCHAIN_CFLAGS_JDK_CONLY="$LANGSTD_CFLAGS $TOOLCHAIN_CFLAGS_JDK_CONLY"
|
|
|
|
# CXXFLAGS C++ language level for all of JDK, including Hotspot.
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
LANGSTD_CXXFLAGS="-std=c++14"
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
LANGSTD_CXXFLAGS="-std:c++14"
|
|
else
|
|
AC_MSG_ERROR([Cannot enable C++14 for this toolchain])
|
|
fi
|
|
TOOLCHAIN_CFLAGS_JDK_CXXONLY="$TOOLCHAIN_CFLAGS_JDK_CXXONLY $LANGSTD_CXXFLAGS"
|
|
TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM $LANGSTD_CXXFLAGS"
|
|
ADLC_LANGSTD_CXXFLAGS="$LANGSTD_CXXFLAGS"
|
|
|
|
# CFLAGS WARNINGS STUFF
|
|
# Set JVM_CFLAGS warning handling
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
WARNING_CFLAGS_JDK_CONLY="$WARNINGS_ENABLE_ALL_CFLAGS"
|
|
WARNING_CFLAGS_JDK_CXXONLY="$WARNINGS_ENABLE_ALL_CXXFLAGS"
|
|
WARNING_CFLAGS_JVM="$WARNINGS_ENABLE_ALL_CXXFLAGS"
|
|
|
|
elif test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
WARNING_CFLAGS="$WARNINGS_ENABLE_ALL"
|
|
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
WARNING_CFLAGS="$WARNINGS_ENABLE_ALL"
|
|
|
|
fi
|
|
|
|
# Set some additional per-OS defines.
|
|
|
|
# Additional macosx handling
|
|
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
|
|
OS_CFLAGS="-DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \
|
|
-mmacosx-version-min=$MACOSX_VERSION_MIN"
|
|
|
|
if test -n "$MACOSX_VERSION_MAX"; then
|
|
OS_CFLAGS="$OS_CFLAGS \
|
|
-DMAC_OS_X_VERSION_MAX_ALLOWED=$MACOSX_VERSION_MAX_NODOTS"
|
|
fi
|
|
fi
|
|
|
|
OS_CFLAGS="$OS_CFLAGS -DLIBC=$OPENJDK_TARGET_LIBC"
|
|
if test "x$OPENJDK_TARGET_LIBC" = xmusl; then
|
|
OS_CFLAGS="$OS_CFLAGS -DMUSL_LIBC"
|
|
fi
|
|
|
|
# Where does this really belong??
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
PICFLAG="-fPIC"
|
|
PIEFLAG="-fPIE"
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
PICFLAG=""
|
|
fi
|
|
|
|
if test "x$TOOLCHAIN_TYPE" = xclang && test "x$OPENJDK_TARGET_OS" = xaix; then
|
|
JVM_PICFLAG="-fpic -mcmodel=large"
|
|
else
|
|
JVM_PICFLAG="$PICFLAG"
|
|
fi
|
|
JDK_PICFLAG="$PICFLAG"
|
|
|
|
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
|
|
# Linking is different on macOS
|
|
JVM_PICFLAG=""
|
|
fi
|
|
|
|
# Extra flags needed when building optional static versions of certain
|
|
# JDK libraries.
|
|
STATIC_LIBS_CFLAGS="-DSTATIC_BUILD=1"
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
STATIC_LIBS_CFLAGS="$STATIC_LIBS_CFLAGS -ffunction-sections -fdata-sections \
|
|
-DJNIEXPORT='__attribute__((visibility(\"default\")))'"
|
|
else
|
|
STATIC_LIBS_CFLAGS="$STATIC_LIBS_CFLAGS -DJNIEXPORT="
|
|
fi
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
# Disable relax-relocation to enable compatibility with older linkers
|
|
RELAX_RELOCATIONS_FLAG="-Xassembler -mrelax-relocations=no"
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${RELAX_RELOCATIONS_FLAG}],
|
|
IF_TRUE: [STATIC_LIBS_CFLAGS="$STATIC_LIBS_CFLAGS ${RELAX_RELOCATIONS_FLAG}"])
|
|
fi
|
|
AC_SUBST(STATIC_LIBS_CFLAGS)
|
|
])
|
|
|
|
################################################################################
|
|
# $1 - Either BUILD or TARGET to pick the correct OS/CPU variables to check
|
|
# conditionals against.
|
|
# $2 - Optional prefix for each variable defined.
|
|
# $3 - Optional prefix for compiler variables (either BUILD_ or nothing).
|
|
AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
|
|
[
|
|
#### CPU DEFINES, these should (in theory) be independent on toolchain
|
|
|
|
# Setup target CPU
|
|
# Setup endianness
|
|
if test "x$FLAGS_CPU_ENDIAN" = xlittle; then
|
|
$1_DEFINES_CPU_JVM="-DVM_LITTLE_ENDIAN"
|
|
$1_DEFINES_CPU_JDK="-D_LITTLE_ENDIAN"
|
|
else
|
|
$1_DEFINES_CPU_JDK="-D_BIG_ENDIAN"
|
|
fi
|
|
|
|
# setup CPU bit size
|
|
$1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DARCH='\"$FLAGS_CPU_LEGACY\"' \
|
|
-D$FLAGS_CPU_LEGACY"
|
|
|
|
if test "x$FLAGS_CPU_BITS" = x64; then
|
|
$1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_LP64=1"
|
|
$1_DEFINES_CPU_JVM="${$1_DEFINES_CPU_JVM} -D_LP64=1"
|
|
fi
|
|
|
|
# toolchain dependent, per-cpu
|
|
if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
if test "x$FLAGS_CPU" = xaarch64; then
|
|
$1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_ARM64_ -Darm64"
|
|
elif test "x$FLAGS_CPU" = xx86_64; then
|
|
$1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_AMD64_ -Damd64"
|
|
else
|
|
$1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_X86_ -Dx86"
|
|
fi
|
|
fi
|
|
|
|
# CFLAGS PER CPU
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
# COMMON to gcc and clang
|
|
AC_MSG_CHECKING([if $1 is x86])
|
|
if test "x$FLAGS_CPU" = xx86; then
|
|
AC_MSG_RESULT([yes])
|
|
AC_MSG_CHECKING([if control flow protection is enabled by additional compiler flags])
|
|
if echo "${EXTRA_CFLAGS}${EXTRA_CXXFLAGS}${EXTRA_ASFLAGS}" | ${GREP} -q 'fcf-protection' ; then
|
|
# cf-protection requires CMOV and thus i686
|
|
$1_CFLAGS_CPU="-march=i686"
|
|
AC_MSG_RESULT([yes, forcing ${$1_CFLAGS_CPU}])
|
|
else
|
|
# Force compatibility with i586 on 32 bit intel platforms.
|
|
$1_CFLAGS_CPU="-march=i586"
|
|
AC_MSG_RESULT([no, forcing ${$1_CFLAGS_CPU}])
|
|
fi
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
fi
|
|
fi
|
|
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
if test "x$FLAGS_CPU" = xaarch64; then
|
|
# -Wno-psabi to get rid of annoying "note: parameter passing for argument of type '<type> changed in GCC 9.1"
|
|
$1_CFLAGS_CPU="-Wno-psabi"
|
|
elif test "x$FLAGS_CPU" = xarm; then
|
|
# -Wno-psabi to get rid of annoying "note: the mangling of 'va_list' has changed in GCC 4.4"
|
|
$1_CFLAGS_CPU="-fsigned-char -Wno-psabi $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS -DJDK_ARCH_ABI_PROP_NAME='\"\$(JDK_ARCH_ABI_PROP_NAME)\"'"
|
|
$1_CFLAGS_CPU_JVM="-DARM"
|
|
elif test "x$FLAGS_CPU_ARCH" = xppc; then
|
|
$1_CFLAGS_CPU_JVM="-minsert-sched-nops=regroup_exact -mno-multiple -mno-string"
|
|
if test "x$FLAGS_CPU" = xppc64; then
|
|
# -mminimal-toc fixes `relocation truncated to fit' error for gcc 4.1.
|
|
# Use ppc64 instructions, but schedule for power5
|
|
$1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -mminimal-toc -mcpu=powerpc64 -mtune=power5"
|
|
elif test "x$FLAGS_CPU" = xppc64le; then
|
|
# Little endian machine uses ELFv2 ABI.
|
|
# Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI.
|
|
$1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8"
|
|
fi
|
|
elif test "x$FLAGS_CPU" = xs390x; then
|
|
$1_CFLAGS_CPU="-mbackchain -march=z10"
|
|
fi
|
|
|
|
if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then
|
|
# for all archs except arm and ppc, prevent gcc to omit frame pointer
|
|
$1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer"
|
|
fi
|
|
|
|
elif test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
if test "x$FLAGS_OS" = xlinux; then
|
|
# ppc test not really needed for clang
|
|
if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then
|
|
# for all archs except arm and ppc, prevent gcc to omit frame pointer
|
|
$1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer"
|
|
fi
|
|
fi
|
|
if test "x$OPENJDK_TARGET_OS" = xaix; then
|
|
$1_CFLAGS_CPU="-mcpu=pwr8"
|
|
fi
|
|
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
if test "x$FLAGS_CPU" = xx86; then
|
|
$1_CFLAGS_CPU_JVM="-arch:IA32"
|
|
elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
|
|
if test "x$DEBUG_LEVEL" != xrelease; then
|
|
# NOTE: This is probably redundant; -homeparams is default on
|
|
# non-release builds.
|
|
$1_CFLAGS_CPU_JVM="-homeparams"
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc; then
|
|
FLAGS_SETUP_GCC6_COMPILER_FLAGS($1, $3)
|
|
$1_TOOLCHAIN_CFLAGS="${$1_GCC6_CFLAGS}"
|
|
|
|
$1_WARNING_CFLAGS_JVM="-Wno-format-zero-length -Wtype-limits -Wuninitialized"
|
|
fi
|
|
|
|
if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
REPRODUCIBLE_CFLAGS="-experimental:deterministic"
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${REPRODUCIBLE_CFLAGS}],
|
|
PREFIX: $3,
|
|
IF_FALSE: [
|
|
REPRODUCIBLE_CFLAGS=
|
|
]
|
|
)
|
|
AC_SUBST(REPRODUCIBLE_CFLAGS)
|
|
fi
|
|
|
|
# Prevent the __FILE__ macro from generating absolute paths into the built
|
|
# binaries. Depending on toolchain, different mitigations are possible.
|
|
# * GCC and Clang of new enough versions have -fmacro-prefix-map.
|
|
# * For most other toolchains, supplying all source files and -I flags as
|
|
# relative paths fixes the issue.
|
|
FILE_MACRO_CFLAGS=
|
|
if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
# Check if compiler supports -fmacro-prefix-map. If so, use that to make
|
|
# the __FILE__ macro resolve to paths relative to the workspace root.
|
|
workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/"
|
|
FILE_MACRO_CFLAGS="-fmacro-prefix-map=${workspace_root_trailing_slash}="
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${FILE_MACRO_CFLAGS}],
|
|
PREFIX: $3,
|
|
IF_FALSE: [
|
|
FILE_MACRO_CFLAGS=
|
|
]
|
|
)
|
|
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
|
|
# There is a known issue with the pathmap if the mapping is made to the
|
|
# empty string. Add a minimal string "s" as prefix to work around this.
|
|
# PATHMAP_FLAGS is also added to LDFLAGS in flags-ldflags.m4.
|
|
PATHMAP_FLAGS="-pathmap:${WORKSPACE_ROOT}=s"
|
|
FILE_MACRO_CFLAGS="$PATHMAP_FLAGS"
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${FILE_MACRO_CFLAGS}],
|
|
PREFIX: $3,
|
|
IF_FALSE: [
|
|
PATHMAP_FLAGS=
|
|
FILE_MACRO_CFLAGS=
|
|
]
|
|
)
|
|
if test "x$FILE_MACRO_CFLAGS" != x; then
|
|
# Add -pathmap for all VS system include paths using Windows
|
|
# full Long path name that is generated by the compiler
|
|
# Not enabled under WSL as there is no easy way to obtain the
|
|
# Windows full long paths, thus reproducible WSL builds will
|
|
# depend on building with the same VS toolchain install location.
|
|
if test "x$OPENJDK_BUILD_OS_ENV" != "xwindows.wsl1" && test "x$OPENJDK_BUILD_OS_ENV" != "xwindows.wsl2"; then
|
|
for ipath in ${$3SYSROOT_CFLAGS}; do
|
|
if test "x${ipath:0:2}" == "x-I"; then
|
|
ipath_path=${ipath#"-I"}
|
|
UTIL_FIXUP_WIN_LONG_PATH(ipath_path)
|
|
FILE_MACRO_CFLAGS="$FILE_MACRO_CFLAGS -pathmap:\"$ipath_path\"=vsi"
|
|
fi
|
|
done
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
AC_MSG_CHECKING([how to prevent absolute paths in output])
|
|
if test "x$FILE_MACRO_CFLAGS" != x; then
|
|
AC_MSG_RESULT([using compiler options])
|
|
else
|
|
AC_MSG_RESULT([using relative paths])
|
|
fi
|
|
fi
|
|
AC_SUBST(FILE_MACRO_CFLAGS)
|
|
|
|
FLAGS_SETUP_BRANCH_PROTECTION
|
|
|
|
# EXPORT to API
|
|
CFLAGS_JVM_COMMON="$ALWAYS_CFLAGS_JVM $ALWAYS_DEFINES_JVM \
|
|
$TOOLCHAIN_CFLAGS_JVM ${$1_TOOLCHAIN_CFLAGS_JVM} \
|
|
$OS_CFLAGS $OS_CFLAGS_JVM $CFLAGS_OS_DEF_JVM $DEBUG_CFLAGS_JVM \
|
|
$WARNING_CFLAGS $WARNING_CFLAGS_JVM $JVM_PICFLAG $FILE_MACRO_CFLAGS \
|
|
$REPRODUCIBLE_CFLAGS $BRANCH_PROTECTION_CFLAGS"
|
|
|
|
CFLAGS_JDK_COMMON="$ALWAYS_DEFINES_JDK $TOOLCHAIN_CFLAGS_JDK \
|
|
$OS_CFLAGS $CFLAGS_OS_DEF_JDK $DEBUG_CFLAGS_JDK $DEBUG_OPTIONS_FLAGS_JDK \
|
|
$WARNING_CFLAGS $WARNING_CFLAGS_JDK $DEBUG_SYMBOLS_CFLAGS_JDK \
|
|
$FILE_MACRO_CFLAGS $REPRODUCIBLE_CFLAGS $BRANCH_PROTECTION_CFLAGS"
|
|
|
|
# Use ${$2EXTRA_CFLAGS} to block EXTRA_CFLAGS to be added to build flags.
|
|
# (Currently we don't have any OPENJDK_BUILD_EXTRA_CFLAGS, but that might
|
|
# change in the future.)
|
|
|
|
CFLAGS_JDK_COMMON_CONLY="$TOOLCHAIN_CFLAGS_JDK_CONLY \
|
|
$WARNING_CFLAGS_JDK_CONLY ${$2EXTRA_CFLAGS}"
|
|
CFLAGS_JDK_COMMON_CXXONLY="$ALWAYS_DEFINES_JDK_CXXONLY \
|
|
$TOOLCHAIN_CFLAGS_JDK_CXXONLY \
|
|
${$1_TOOLCHAIN_CFLAGS_JDK_CXXONLY} \
|
|
$WARNING_CFLAGS_JDK_CXXONLY ${$2EXTRA_CXXFLAGS}"
|
|
|
|
$1_CFLAGS_JVM="${$1_DEFINES_CPU_JVM} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JVM} ${$1_TOOLCHAIN_CFLAGS} ${$1_WARNING_CFLAGS_JVM}"
|
|
$1_CFLAGS_JDK="${$1_DEFINES_CPU_JDK} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JDK} ${$1_TOOLCHAIN_CFLAGS}"
|
|
|
|
$2JVM_CFLAGS="$CFLAGS_JVM_COMMON ${$1_CFLAGS_JVM} ${$2EXTRA_CXXFLAGS}"
|
|
|
|
$2CFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CONLY ${$1_CFLAGS_JDK} $PIEFLAG"
|
|
$2CXXFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CXXONLY ${$1_CFLAGS_JDK} $PIEFLAG"
|
|
$2CFLAGS_JDKLIB="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CONLY ${$1_CFLAGS_JDK} \
|
|
$JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}"
|
|
$2CXXFLAGS_JDKLIB="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CXXONLY ${$1_CFLAGS_JDK} \
|
|
$JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}"
|
|
|
|
AC_SUBST($2JVM_CFLAGS)
|
|
AC_SUBST($2CFLAGS_JDKLIB)
|
|
AC_SUBST($2CFLAGS_JDKEXE)
|
|
AC_SUBST($2CXXFLAGS_JDKLIB)
|
|
AC_SUBST($2CXXFLAGS_JDKEXE)
|
|
AC_SUBST($2ADLC_LANGSTD_CXXFLAGS)
|
|
|
|
COMPILER_FP_CONTRACT_OFF_FLAG="-ffp-contract=off"
|
|
# Check that the compiler supports -ffp-contract=off flag
|
|
# Set FDLIBM_CFLAGS to -ffp-contract=off if it does. Empty
|
|
# otherwise.
|
|
# These flags are required for GCC-based builds of
|
|
# fdlibm with optimization without losing precision.
|
|
# Notably, -ffp-contract=off needs to be added for GCC >= 4.6.
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_FP_CONTRACT_OFF_FLAG}],
|
|
PREFIX: $3,
|
|
IF_TRUE: [$2FDLIBM_CFLAGS=${COMPILER_FP_CONTRACT_OFF_FLAG}],
|
|
IF_FALSE: [$2FDLIBM_CFLAGS=""])
|
|
fi
|
|
AC_SUBST($2FDLIBM_CFLAGS)
|
|
|
|
# Check whether the compiler supports the Arm C Language Extensions (ACLE)
|
|
# for SVE. Set SVE_CFLAGS to -march=armv8-a+sve if it does.
|
|
# ACLE and this flag are required to build the aarch64 SVE related functions in
|
|
# libvectormath.
|
|
if test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
AC_LANG_PUSH(C)
|
|
OLD_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS -march=armv8-a+sve"
|
|
AC_MSG_CHECKING([if Arm SVE ACLE is supported])
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <arm_sve.h>],
|
|
[
|
|
svint32_t r = svdup_n_s32(1);
|
|
return 0;
|
|
])],
|
|
[
|
|
AC_MSG_RESULT([yes])
|
|
$2SVE_CFLAGS="-march=armv8-a+sve"
|
|
],
|
|
[
|
|
AC_MSG_RESULT([no])
|
|
$2SVE_CFLAGS=""
|
|
]
|
|
)
|
|
CFLAGS="$OLD_CFLAGS"
|
|
AC_LANG_POP(C)
|
|
fi
|
|
fi
|
|
AC_SUBST($2SVE_CFLAGS)
|
|
])
|
|
|
|
# FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX])
|
|
# Arguments:
|
|
# $1 - Prefix for each variable defined.
|
|
# $2 - Prefix for compiler variables (either BUILD_ or nothing).
|
|
AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
|
|
[
|
|
# This flag is required for GCC 6 builds as undefined behavior in OpenJDK code
|
|
# runs afoul of the more aggressive versions of this optimization.
|
|
NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG],
|
|
PREFIX: $2, IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""])
|
|
$1_GCC6_CFLAGS="${NO_LIFETIME_DSE_CFLAG}"
|
|
])
|
|
|
|
AC_DEFUN_ONCE([FLAGS_SETUP_BRANCH_PROTECTION],
|
|
[
|
|
# Is branch protection available?
|
|
BRANCH_PROTECTION_AVAILABLE=false
|
|
BRANCH_PROTECTION_FLAG="-mbranch-protection=standard"
|
|
|
|
if test "x$OPENJDK_TARGET_CPU" = xaarch64; then
|
|
if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
|
|
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$BRANCH_PROTECTION_FLAG],
|
|
IF_TRUE: [BRANCH_PROTECTION_AVAILABLE=true])
|
|
fi
|
|
fi
|
|
|
|
UTIL_ARG_ENABLE(NAME: branch-protection, DEFAULT: false,
|
|
RESULT: BRANCH_PROTECTION_ENABLED, AVAILABLE: $BRANCH_PROTECTION_AVAILABLE,
|
|
DESC: [enable branch protection when compiling C/C++],
|
|
IF_ENABLED: [BRANCH_PROTECTION_CFLAGS=$BRANCH_PROTECTION_FLAG])
|
|
])
|