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1 # |
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2 # Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved. |
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3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 # |
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5 # This code is free software; you can redistribute it and/or modify it |
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6 # under the terms of the GNU General Public License version 2 only, as |
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7 # published by the Free Software Foundation. Oracle designates this |
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8 # particular file as subject to the "Classpath" exception as provided |
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9 # by Oracle in the LICENSE file that accompanied this code. |
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10 # |
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11 # This code is distributed in the hope that it will be useful, but WITHOUT |
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12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 # version 2 for more details (a copy is included in the LICENSE file that |
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15 # accompanied this code). |
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16 # |
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17 # You should have received a copy of the GNU General Public License version |
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18 # 2 along with this work; if not, write to the Free Software Foundation, |
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19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 # |
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21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 # or visit www.oracle.com if you need additional information or have any |
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23 # questions. |
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24 # |
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25 |
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26 ################################################################################ |
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27 # |
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28 # Setup flags for C/C++ compiler |
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29 # |
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30 |
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31 ############################################################################### |
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32 # |
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33 # How to compile shared libraries. |
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34 # |
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35 AC_DEFUN([FLAGS_SETUP_SHARED_LIBS], |
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36 [ |
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37 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
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38 C_FLAG_REORDER='' |
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39 |
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40 # Default works for linux, might work on other platforms as well. |
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41 SHARED_LIBRARY_FLAGS='-shared' |
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42 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1' |
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43 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" |
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44 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' |
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45 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' |
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46 |
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47 elif test "x$TOOLCHAIN_TYPE" = xclang; then |
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48 C_FLAG_REORDER='' |
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49 |
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50 if test "x$OPENJDK_TARGET_OS" = xmacosx; then |
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51 # Linking is different on MacOSX |
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52 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0" |
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53 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)' |
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54 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" |
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55 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' |
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56 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1' |
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57 |
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58 else |
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59 # Default works for linux, might work on other platforms as well. |
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60 SHARED_LIBRARY_FLAGS='-shared' |
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61 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1' |
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62 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' |
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63 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' |
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64 |
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65 # arm specific settings |
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66 if test "x$OPENJDK_TARGET_CPU" = "xarm"; then |
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67 # '-Wl,-z,origin' isn't used on arm. |
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68 SET_SHARED_LIBRARY_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' |
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69 else |
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70 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" |
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71 fi |
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72 fi |
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73 |
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74 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
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75 C_FLAG_REORDER='-xF' |
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76 SHARED_LIBRARY_FLAGS="-G" |
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77 SET_EXECUTABLE_ORIGIN='-R\$$ORIGIN[$]1' |
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78 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" |
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79 SET_SHARED_LIBRARY_NAME='-h [$]1' |
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80 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' |
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81 |
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82 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
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83 C_FLAG_REORDER='' |
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84 SHARED_LIBRARY_FLAGS="-qmkshrobj -bM:SRE -bnoentry" |
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85 SET_EXECUTABLE_ORIGIN="" |
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86 SET_SHARED_LIBRARY_ORIGIN='' |
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87 SET_SHARED_LIBRARY_NAME='' |
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88 SET_SHARED_LIBRARY_MAPFILE='' |
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89 |
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90 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
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91 C_FLAG_REORDER='' |
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92 SHARED_LIBRARY_FLAGS="-dll" |
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93 SET_EXECUTABLE_ORIGIN='' |
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94 SET_SHARED_LIBRARY_ORIGIN='' |
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95 SET_SHARED_LIBRARY_NAME='' |
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96 SET_SHARED_LIBRARY_MAPFILE='-def:[$]1' |
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97 fi |
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98 |
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99 AC_SUBST(C_FLAG_REORDER) |
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100 AC_SUBST(SET_EXECUTABLE_ORIGIN) |
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101 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) |
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102 AC_SUBST(SET_SHARED_LIBRARY_NAME) |
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103 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) |
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104 AC_SUBST(SHARED_LIBRARY_FLAGS) |
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105 ]) |
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106 |
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107 AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS], |
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108 [ |
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109 # Debug symbols |
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110 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
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111 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then |
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112 CFLAGS_DEBUG_SYMBOLS="-g1" |
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113 else |
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114 CFLAGS_DEBUG_SYMBOLS="-g" |
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115 fi |
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116 elif test "x$TOOLCHAIN_TYPE" = xclang; then |
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117 CFLAGS_DEBUG_SYMBOLS="-g" |
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118 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
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119 CFLAGS_DEBUG_SYMBOLS="-g -xs" |
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120 # -g0 enables debug symbols without disabling inlining. |
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121 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs" |
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122 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
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123 CFLAGS_DEBUG_SYMBOLS="-g" |
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124 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
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125 CFLAGS_DEBUG_SYMBOLS="-Zi" |
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126 fi |
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127 |
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128 if test "x$CXXFLAGS_DEBUG_SYMBOLS" = x; then |
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129 # If we did not specify special flags for C++, use C version |
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130 CXXFLAGS_DEBUG_SYMBOLS="$CFLAGS_DEBUG_SYMBOLS" |
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131 fi |
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132 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) |
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133 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) |
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134 |
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135 # FIXME: This was never used in the old build. What to do with it? |
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136 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
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137 # "-Og" suppported for GCC 4.8 and later |
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138 CFLAG_OPTIMIZE_DEBUG_FLAG="-Og" |
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139 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CFLAG_OPTIMIZE_DEBUG_FLAG], |
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140 IF_TRUE: [HAS_CFLAG_OPTIMIZE_DEBUG=true], |
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141 IF_FALSE: [HAS_CFLAG_OPTIMIZE_DEBUG=false]) |
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142 fi |
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143 |
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144 # Debug symbols for JVM_CFLAGS |
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145 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
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146 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -xs" |
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147 if test "x$DEBUG_LEVEL" = xslowdebug; then |
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148 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g" |
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149 else |
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150 # -g0 does not disable inlining, which -g does. |
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151 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g0" |
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152 fi |
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153 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
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154 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -Z7 -d2Zi+" |
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155 else |
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156 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g" |
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157 fi |
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158 AC_SUBST(JVM_CFLAGS_SYMBOLS) |
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159 ]) |
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160 |
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161 AC_DEFUN([FLAGS_SETUP_WARNINGS], |
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162 [ |
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163 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors], |
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164 [do not consider native warnings to be an error @<:@enabled@:>@])]) |
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165 |
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166 AC_MSG_CHECKING([if native warnings are errors]) |
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167 if test "x$enable_warnings_as_errors" = "xyes"; then |
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168 AC_MSG_RESULT([yes (explicitly set)]) |
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169 WARNINGS_AS_ERRORS=true |
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170 elif test "x$enable_warnings_as_errors" = "xno"; then |
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171 AC_MSG_RESULT([no]) |
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172 WARNINGS_AS_ERRORS=false |
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173 elif test "x$enable_warnings_as_errors" = "x"; then |
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174 AC_MSG_RESULT([yes (default)]) |
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175 WARNINGS_AS_ERRORS=true |
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176 else |
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177 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument]) |
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178 fi |
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179 |
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180 AC_SUBST(WARNINGS_AS_ERRORS) |
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181 |
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182 case "${TOOLCHAIN_TYPE}" in |
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183 microsoft) |
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184 DISABLE_WARNING_PREFIX="-wd" |
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185 CFLAGS_WARNINGS_ARE_ERRORS="-WX" |
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186 ;; |
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187 solstudio) |
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188 DISABLE_WARNING_PREFIX="-erroff=" |
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189 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" |
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190 ;; |
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191 gcc) |
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192 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error |
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193 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], |
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194 IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true], |
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195 IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false] |
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196 ) |
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197 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then |
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198 DISABLE_WARNING_PREFIX="-Wno-" |
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199 else |
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200 DISABLE_WARNING_PREFIX= |
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201 fi |
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202 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" |
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203 # Repeate the check for the BUILD_CC and BUILD_CXX. Need to also reset |
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204 # CFLAGS since any target specific flags will likely not work with the |
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205 # build compiler |
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206 CC_OLD="$CC" |
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207 CXX_OLD="$CXX" |
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208 CC="$BUILD_CC" |
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209 CXX="$BUILD_CXX" |
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210 CFLAGS_OLD="$CFLAGS" |
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211 CFLAGS="" |
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212 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], |
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213 IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true], |
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214 IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false] |
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215 ) |
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216 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then |
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217 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" |
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218 else |
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219 BUILD_CC_DISABLE_WARNING_PREFIX= |
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220 fi |
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221 CC="$CC_OLD" |
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222 CXX="$CXX_OLD" |
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223 CFLAGS="$CFLAGS_OLD" |
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224 ;; |
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225 clang) |
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226 DISABLE_WARNING_PREFIX="-Wno-" |
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227 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" |
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228 ;; |
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229 xlc) |
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230 DISABLE_WARNING_PREFIX="-qsuppress=" |
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231 CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w" |
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232 ;; |
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233 esac |
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234 AC_SUBST(DISABLE_WARNING_PREFIX) |
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235 AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX) |
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236 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) |
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237 ]) |
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238 |
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239 AC_DEFUN([FLAGS_SETUP_QUALITY_CHECKS], |
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240 [ |
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241 # bounds, memory and behavior checking options |
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242 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
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243 case $DEBUG_LEVEL in |
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244 release ) |
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245 # no adjustment |
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246 ;; |
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247 fastdebug ) |
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248 # no adjustment |
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249 ;; |
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250 slowdebug ) |
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251 # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it |
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252 # get's added conditionally on whether we produce debug symbols or not. |
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253 # This is most likely not really correct. |
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254 |
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255 # Add runtime stack smashing and undefined behavior checks. |
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256 # Not all versions of gcc support -fstack-protector |
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257 STACK_PROTECTOR_CFLAG="-fstack-protector-all" |
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258 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror], |
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259 IF_FALSE: [STACK_PROTECTOR_CFLAG=""]) |
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260 |
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261 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" |
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262 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" |
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263 |
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264 if test "x$STACK_PROTECTOR_CFLAG" != x; then |
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265 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS $STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" |
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266 fi |
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267 ;; |
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268 esac |
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269 fi |
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270 ]) |
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271 |
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272 AC_DEFUN([FLAGS_SETUP_OPTIMIZATION], |
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273 [ |
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274 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
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275 CC_HIGHEST="-fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" |
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276 |
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277 C_O_FLAG_HIGHEST_JVM="-xO4" |
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278 C_O_FLAG_DEBUG_JVM="" |
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279 C_O_FLAG_SIZE="" |
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280 C_O_FLAG_DEBUG="" |
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281 C_O_FLAG_NONE="" |
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282 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then |
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283 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST" |
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284 C_O_FLAG_HI="-xO4 -Wu,-O4~yz" |
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285 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz" |
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286 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then |
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287 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 \ |
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288 -xprefetch=auto,explicit -xchip=ultra $CC_HIGHEST" |
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289 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" |
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290 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" |
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291 fi |
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292 elif test "x$TOOLCHAIN_TYPE" = xgcc; then |
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293 C_O_FLAG_HIGHEST_JVM="-O3" |
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294 C_O_FLAG_HIGHEST="-O3" |
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295 C_O_FLAG_HI="-O3" |
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296 C_O_FLAG_NORM="-O2" |
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297 C_O_FLAG_SIZE="-Os" |
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298 C_O_FLAG_DEBUG="-O0" |
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299 C_O_FLAG_DEBUG_JVM="-O0" |
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300 C_O_FLAG_NONE="-O0" |
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301 elif test "x$TOOLCHAIN_TYPE" = xclang; then |
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302 if test "x$OPENJDK_TARGET_OS" = xmacosx; then |
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303 # On MacOSX we optimize for size, something |
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304 # we should do for all platforms? |
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305 C_O_FLAG_HIGHEST_JVM="-Os" |
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306 C_O_FLAG_HIGHEST="-Os" |
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307 C_O_FLAG_HI="-Os" |
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308 C_O_FLAG_NORM="-Os" |
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309 C_O_FLAG_DEBUG_JVM="" |
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310 else |
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311 C_O_FLAG_HIGHEST_JVM="-O3" |
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312 C_O_FLAG_HIGHEST="-O3" |
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313 C_O_FLAG_HI="-O3" |
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314 C_O_FLAG_NORM="-O2" |
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315 C_O_FLAG_DEBUG_JVM="-O0" |
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316 fi |
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317 C_O_FLAG_SIZE="-Os" |
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318 C_O_FLAG_DEBUG="-O0" |
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319 C_O_FLAG_NONE="-O0" |
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320 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
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321 C_O_FLAG_HIGHEST_JVM="-O3 -qhot=level=1 -qinline -qinlglue" |
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322 C_O_FLAG_HIGHEST="-O3 -qhot=level=1 -qinline -qinlglue" |
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323 C_O_FLAG_HI="-O3 -qinline -qinlglue" |
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324 C_O_FLAG_NORM="-O2" |
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325 C_O_FLAG_DEBUG="-qnoopt" |
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326 # FIXME: Value below not verified. |
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327 C_O_FLAG_DEBUG_JVM="" |
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328 C_O_FLAG_NONE="-qnoopt" |
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329 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
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330 C_O_FLAG_HIGHEST_JVM="-O2 -Oy-" |
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331 C_O_FLAG_HIGHEST="-O2" |
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332 C_O_FLAG_HI="-O1" |
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333 C_O_FLAG_NORM="-O1" |
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334 C_O_FLAG_DEBUG="-Od" |
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335 C_O_FLAG_DEBUG_JVM="" |
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336 C_O_FLAG_NONE="-Od" |
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337 C_O_FLAG_SIZE="-Os" |
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338 fi |
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339 |
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340 # Now copy to C++ flags |
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341 CXX_O_FLAG_HIGHEST_JVM="$C_O_FLAG_HIGHEST_JVM" |
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342 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" |
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343 CXX_O_FLAG_HI="$C_O_FLAG_HI" |
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344 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" |
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345 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" |
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346 CXX_O_FLAG_DEBUG_JVM="$C_O_FLAG_DEBUG_JVM" |
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347 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" |
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348 CXX_O_FLAG_SIZE="$C_O_FLAG_SIZE" |
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349 |
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350 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
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351 # In solstudio, also add this to C (but not C++) flags... |
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352 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xalias_level=basic" |
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353 fi |
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354 |
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355 # Adjust optimization flags according to debug level. |
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356 case $DEBUG_LEVEL in |
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357 release ) |
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358 # no adjustment |
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359 ;; |
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360 fastdebug ) |
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361 # Not quite so much optimization |
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362 C_O_FLAG_HI="$C_O_FLAG_NORM" |
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363 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" |
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364 ;; |
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365 slowdebug ) |
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366 # Disable optimization |
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367 C_O_FLAG_HIGHEST_JVM="$C_O_FLAG_DEBUG_JVM" |
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368 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" |
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369 C_O_FLAG_HI="$C_O_FLAG_DEBUG" |
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370 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" |
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371 C_O_FLAG_SIZE="$C_O_FLAG_DEBUG" |
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372 CXX_O_FLAG_HIGHEST_JVM="$CXX_O_FLAG_DEBUG_JVM" |
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373 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" |
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374 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" |
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375 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" |
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376 CXX_O_FLAG_SIZE="$CXX_O_FLAG_DEBUG" |
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377 ;; |
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378 esac |
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379 |
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380 AC_SUBST(C_O_FLAG_HIGHEST_JVM) |
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381 AC_SUBST(C_O_FLAG_HIGHEST) |
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382 AC_SUBST(C_O_FLAG_HI) |
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383 AC_SUBST(C_O_FLAG_NORM) |
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384 AC_SUBST(C_O_FLAG_NONE) |
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385 AC_SUBST(C_O_FLAG_SIZE) |
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386 AC_SUBST(CXX_O_FLAG_HIGHEST_JVM) |
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387 AC_SUBST(CXX_O_FLAG_HIGHEST) |
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388 AC_SUBST(CXX_O_FLAG_HI) |
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389 AC_SUBST(CXX_O_FLAG_NORM) |
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390 AC_SUBST(CXX_O_FLAG_NONE) |
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391 AC_SUBST(CXX_O_FLAG_SIZE) |
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392 ]) |
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393 |
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394 AC_DEFUN([FLAGS_SETUP_CFLAGS], |
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395 [ |
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396 ### CFLAGS |
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397 |
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398 FLAGS_SETUP_CFLAGS_HELPER |
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399 |
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400 FLAGS_OS=$OPENJDK_TARGET_OS |
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401 FLAGS_OS_TYPE=$OPENJDK_TARGET_OS_TYPE |
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402 FLAGS_CPU=$OPENJDK_TARGET_CPU |
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403 FLAGS_CPU_ARCH=$OPENJDK_TARGET_CPU_ARCH |
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404 FLAGS_CPU_BITS=$OPENJDK_TARGET_CPU_BITS |
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405 FLAGS_CPU_ENDIAN=$OPENJDK_TARGET_CPU_ENDIAN |
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406 FLAGS_CPU_LEGACY=$OPENJDK_TARGET_CPU_LEGACY |
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407 FLAGS_CPU_LEGACY_LIB=$OPENJDK_TARGET_CPU_LEGACY_LIB |
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408 |
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409 FLAGS_SETUP_CFLAGS_CPU_DEP([TARGET]) |
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410 |
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411 FLAGS_OS=$OPENJDK_BUILD_OS |
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412 FLAGS_OS_TYPE=$OPENJDK_BUILD_OS_TYPE |
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413 FLAGS_CPU=$OPENJDK_BUILD_CPU |
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414 FLAGS_CPU_ARCH=$OPENJDK_BUILD_CPU_ARCH |
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415 FLAGS_CPU_BITS=$OPENJDK_BUILD_CPU_BITS |
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416 FLAGS_CPU_ENDIAN=$OPENJDK_BUILD_CPU_ENDIAN |
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417 FLAGS_CPU_LEGACY=$OPENJDK_BUILD_CPU_LEGACY |
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418 FLAGS_CPU_LEGACY_LIB=$OPENJDK_BUILD_CPU_LEGACY_LIB |
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419 |
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420 FLAGS_SETUP_CFLAGS_CPU_DEP([BUILD], [OPENJDK_BUILD_]) |
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421 |
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422 # Tests are only ever compiled for TARGET |
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423 CFLAGS_TESTLIB="$CFLAGS_JDKLIB" |
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424 CXXFLAGS_TESTLIB="$CXXFLAGS_JDKLIB" |
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425 CFLAGS_TESTEXE="$CFLAGS_JDKEXE" |
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426 CXXFLAGS_TESTEXE="$CXXFLAGS_JDKEXE" |
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427 |
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428 AC_SUBST(CFLAGS_TESTLIB) |
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429 AC_SUBST(CFLAGS_TESTEXE) |
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430 AC_SUBST(CXXFLAGS_TESTLIB) |
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431 AC_SUBST(CXXFLAGS_TESTEXE) |
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432 ]) |
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433 |
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434 ################################################################################ |
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435 # platform independent |
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436 AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER], |
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437 [ |
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438 #### OS DEFINES, these should be independent on toolchain |
|
439 if test "x$OPENJDK_TARGET_OS" = xlinux; then |
|
440 CFLAGS_OS_DEF_JVM="-DLINUX" |
|
441 CFLAGS_OS_DEF_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" |
|
442 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then |
|
443 CFLAGS_OS_DEF_JVM="-DSOLARIS" |
|
444 CFLAGS_OS_DEF_JDK="-D__solaris__" |
|
445 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then |
|
446 CFLAGS_OS_DEF_JVM="-D_ALLBSD_SOURCE -D_DARWIN_C_SOURCE -D_XOPEN_SOURCE" |
|
447 CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" |
|
448 elif test "x$OPENJDK_TARGET_OS" = xaix; then |
|
449 CFLAGS_OS_DEF_JVM="-DAIX" |
|
450 elif test "x$OPENJDK_TARGET_OS" = xbsd; then |
|
451 CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE" |
|
452 elif test "x$OPENJDK_TARGET_OS" = xwindows; then |
|
453 CFLAGS_OS_DEF_JVM="-D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_" |
|
454 fi |
|
455 |
|
456 # Setup target OS define. Use OS target name but in upper case. |
|
457 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` |
|
458 CFLAGS_OS_DEF_JDK="$CFLAGS_OS_DEF_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" |
|
459 |
|
460 #### GLOBAL DEFINES |
|
461 # Set some common defines. These works for all compilers, but assume |
|
462 # -D is universally accepted. |
|
463 |
|
464 # Always enable optional macros for VM. |
|
465 ALWAYS_CFLAGS_JVM="-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS" |
|
466 |
|
467 # Setup some hard coded includes |
|
468 ALWAYS_CFLAGS_JDK=" \ |
|
469 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base \ |
|
470 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base/\$(OPENJDK_TARGET_OS_INCLUDE_SUBDIR) \ |
|
471 -I${TOPDIR}/src/java.base/share/native/libjava \ |
|
472 -I${TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava \ |
|
473 -I${TOPDIR}/src/hotspot/share/include \ |
|
474 -I${TOPDIR}/src/hotspot/os/${HOTSPOT_TARGET_OS_TYPE}/include" |
|
475 |
|
476 ############################################################################### |
|
477 |
|
478 # Adjust flags according to debug level. |
|
479 # Setup debug/release defines |
|
480 if test "x$DEBUG_LEVEL" = xrelease; then |
|
481 DEBUG_CFLAGS_JDK="-DNDEBUG" |
|
482 if test "x$OPENJDK_TARGET_OS" = xsolaris; then |
|
483 DEBUG_CFLAGS_JDK="$DEBUG_CFLAGS_JDK -DTRIMMED" |
|
484 fi |
|
485 else |
|
486 DEBUG_CFLAGS_JDK="-DDEBUG" |
|
487 |
|
488 if test "x$TOOLCHAIN_TYPE" = xxlc; then |
|
489 # We need '-qminimaltoc' or '-qpic=large -bbigtoc' if the TOC overflows. |
|
490 # Hotspot now overflows its 64K TOC (currently only for debug), |
|
491 # so for debug we build with '-qpic=large -bbigtoc'. |
|
492 DEBUG_CFLAGS_JVM="-qpic=large" |
|
493 fi |
|
494 fi |
|
495 |
|
496 if test "x$DEBUG_LEVEL" != xrelease; then |
|
497 DEBUG_OPTIONS_FLAGS_JDK="$CFLAGS_DEBUG_OPTIONS" |
|
498 DEBUG_SYMBOLS_CFLAGS_JDK="$CFLAGS_DEBUG_SYMBOLS" |
|
499 DEBUG_SYMBOLS_CXXFLAGS_JDK="$CXXFLAGS_DEBUG_SYMBOLS" |
|
500 fi |
|
501 |
|
502 #### TOOLCHAIN DEFINES |
|
503 |
|
504 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
|
505 ALWAYS_DEFINES_JVM="-D_GNU_SOURCE -D_REENTRANT" |
|
506 elif test "x$TOOLCHAIN_TYPE" = xclang; then |
|
507 ALWAYS_DEFINES_JVM="-D_GNU_SOURCE" |
|
508 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
|
509 ALWAYS_DEFINES_JVM="-DSPARC_WORKS -D_Crun_inline_placement" |
|
510 ALWAYS_DEFINES_JDK="-DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" |
|
511 ALWAYS_DEFINES_JDK_CXXONLY="-DCC_NOEX" |
|
512 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
|
513 ALWAYS_DEFINES_JVM="-D_REENTRANT" |
|
514 ALWAYS_DEFINES_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" |
|
515 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
|
516 ALWAYS_DEFINES_JDK="-DWIN32_LEAN_AND_MEAN -D_CRT_SECURE_NO_DEPRECATE \ |
|
517 -D_CRT_NONSTDC_NO_DEPRECATE -DWIN32 -DIAL" |
|
518 fi |
|
519 |
|
520 ############################################################################### |
|
521 # |
|
522 # |
|
523 # CFLAGS BASIC |
|
524 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
|
525 # COMMON to gcc and clang |
|
526 TOOLCHAIN_CFLAGS_JVM="-pipe -fno-rtti -fno-exceptions \ |
|
527 -fvisibility=hidden -fno-strict-aliasing -fno-omit-frame-pointer" |
|
528 fi |
|
529 |
|
530 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
|
531 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -fcheck-new" |
|
532 TOOLCHAIN_CFLAGS_JDK="-pipe" |
|
533 TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX (but since this gives *worse* performance, use no-strict-aliasing everywhere!) |
|
534 |
|
535 CXXSTD_CXXFLAG="-std=gnu++98" |
|
536 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CXXSTD_CXXFLAG -Werror], |
|
537 IF_FALSE: [CXXSTD_CXXFLAG=""]) |
|
538 TOOLCHAIN_CFLAGS_JDK_CXXONLY="$CXXSTD_CXXFLAG" |
|
539 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM $CXXSTD_CXXFLAG" |
|
540 ADLC_CXXFLAG="$CXXSTD_CXXFLAG" |
|
541 |
|
542 |
|
543 elif test "x$TOOLCHAIN_TYPE" = xclang; then |
|
544 # Restrict the debug information created by Clang to avoid |
|
545 # too big object files and speed the build up a little bit |
|
546 # (see http://llvm.org/bugs/show_bug.cgi?id=7554) |
|
547 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -flimit-debug-info" |
|
548 |
|
549 if test "x$OPENJDK_TARGET_OS" = xlinux; then |
|
550 TOOLCHAIN_CFLAGS_JDK="-pipe" |
|
551 TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX |
|
552 fi |
|
553 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
|
554 TOOLCHAIN_CFLAGS_JDK="-mt" |
|
555 TOOLCHAIN_CFLAGS_JDK_CONLY="-xc99=%none -xCC -Xa -v -W0,-noglobal" # C only |
|
556 TOOLCHAIN_CFLAGS_JDK_CXXONLY="-features=no%except -norunpath -xnolib" # CXX only |
|
557 TOOLCHAIN_CFLAGS_JVM="-template=no%extdef -features=no%split_init \ |
|
558 -library=stlport4 -mt -features=no%except" |
|
559 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
|
560 TOOLCHAIN_CFLAGS_JDK="-qchars=signed -qfullpath -qsaveopt" # add on both CFLAGS |
|
561 TOOLCHAIN_CFLAGS_JVM="-qtune=balanced \ |
|
562 -qalias=noansi -qstrict -qtls=default -qlanglvl=c99vla \ |
|
563 -qlanglvl=noredefmac -qnortti -qnoeh -qignerrno" |
|
564 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
|
565 TOOLCHAIN_CFLAGS_JVM="-nologo -MD -MP" |
|
566 TOOLCHAIN_CFLAGS_JDK="-nologo -MD -Zc:wchar_t-" |
|
567 fi |
|
568 |
|
569 # CFLAGS WARNINGS STUFF |
|
570 # Set JVM_CFLAGS warning handling |
|
571 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
|
572 # COMMON to gcc and clang |
|
573 WARNING_CFLAGS_JVM="-Wpointer-arith -Wsign-compare -Wunused-function" |
|
574 if ! HOTSPOT_CHECK_JVM_VARIANT(zero); then |
|
575 # Non-zero builds have stricter warnings |
|
576 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wundef -Wformat=2" |
|
577 fi |
|
578 |
|
579 fi |
|
580 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
|
581 WARNING_CFLAGS_JDK="-Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2" |
|
582 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wunused-value -Woverloaded-virtual" |
|
583 |
|
584 if ! HOTSPOT_CHECK_JVM_VARIANT(zero); then |
|
585 # Non-zero builds have stricter warnings |
|
586 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wreturn-type" |
|
587 fi |
|
588 elif test "x$TOOLCHAIN_TYPE" = xclang; then |
|
589 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wno-deprecated" |
|
590 if test "x$OPENJDK_TARGET_OS" = xlinux; then |
|
591 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wno-sometimes-uninitialized" |
|
592 WARNING_CFLAGS_JDK="-Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2" |
|
593 fi |
|
594 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
|
595 WARNING_CFLAGS_JDK_CONLY="-errshort=tags" |
|
596 WARNING_CFLAGS_JDK_CXXONLY="+w" |
|
597 WARNING_CFLAGS_JDK="-errtags=yes -errfmt" |
|
598 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
|
599 WARNING_CFLAGS="-W3" |
|
600 WARNING_CFLAGS_JDK="-wd4800" |
|
601 fi |
|
602 |
|
603 # Set some additional per-OS defines. |
|
604 |
|
605 # Additional macosx handling |
|
606 if test "x$OPENJDK_TARGET_OS" = xmacosx; then |
|
607 OS_CFLAGS="-DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \ |
|
608 -mmacosx-version-min=$MACOSX_VERSION_MIN" |
|
609 |
|
610 if test -n "$MACOSX_VERSION_MAX"; then |
|
611 OS_CFLAGS="$OS_CFLAGS \ |
|
612 -DMAC_OS_X_VERSION_MAX_ALLOWED=$MACOSX_VERSION_MAX_NODOTS" |
|
613 fi |
|
614 fi |
|
615 |
|
616 # Where does this really belong?? |
|
617 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
|
618 PICFLAG="-fPIC" |
|
619 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
|
620 PICFLAG="-KPIC" |
|
621 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
|
622 # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only |
|
623 # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker |
|
624 # will have to patch this single instruction with a call to some out-of-order code which |
|
625 # does the load from the TOC. This is of course slow. But in that case we also would have |
|
626 # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'. |
|
627 # With 'qpic=large' the compiler will by default generate a two-instruction sequence which |
|
628 # can be patched directly by the linker and does not require a jump to out-of-order code. |
|
629 # Another alternative instead of using 'qpic=large -bbigtoc' may be to use '-qminimaltoc' |
|
630 # instead. This creates a distinct TOC for every compilation unit (and thus requires two |
|
631 # loads for accessing a global variable). But there are rumors that this may be seen as a |
|
632 # 'performance feature' because of improved code locality of the symbols used in a |
|
633 # compilation unit. |
|
634 PICFLAG="-qpic" |
|
635 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
|
636 PICFLAG="" |
|
637 fi |
|
638 |
|
639 JVM_PICFLAG="$PICFLAG" |
|
640 JDK_PICFLAG="$PICFLAG" |
|
641 |
|
642 if test "x$OPENJDK_TARGET_OS" = xmacosx; then |
|
643 # Linking is different on MacOSX |
|
644 JDK_PICFLAG='' |
|
645 if test "x$STATIC_BUILD" = xtrue; then |
|
646 JVM_PICFLAG="" |
|
647 fi |
|
648 fi |
|
649 |
|
650 if test "x$OPENJDK_TARGET_OS" = xmacosx; then |
|
651 OS_CFLAGS_JVM="$OS_CFLAGS_JVM -mno-omit-leaf-frame-pointer -mstack-alignment=16" |
|
652 fi |
|
653 |
|
654 # Optional POSIX functionality needed by the JVM |
|
655 # |
|
656 # Check if clock_gettime is available and in which library. This indicates |
|
657 # availability of CLOCK_MONOTONIC for hotspot. But we don't need to link, so |
|
658 # don't let it update LIBS. |
|
659 save_LIBS="$LIBS" |
|
660 AC_SEARCH_LIBS(clock_gettime, rt, [HAS_CLOCK_GETTIME=true], []) |
|
661 if test "x$LIBS" = "x-lrt "; then |
|
662 CLOCK_GETTIME_IN_LIBRT=true |
|
663 fi |
|
664 LIBS="$save_LIBS" |
|
665 |
|
666 if test "x$HAS_CLOCK_GETTIME" = "xtrue"; then |
|
667 OS_CFLAGS_JVM="$OS_CFLAGS_JVM -DSUPPORTS_CLOCK_MONOTONIC" |
|
668 if test "x$CLOCK_GETTIME_IN_LIBRT" = "xtrue"; then |
|
669 OS_CFLAGS_JVM="$OS_CFLAGS_JVM -DNEEDS_LIBRT" |
|
670 fi |
|
671 fi |
|
672 |
|
673 # EXPORT |
|
674 AC_SUBST(ADLC_CXXFLAG) |
|
675 ]) |
|
676 |
|
677 ################################################################################ |
|
678 # $1 - Either BUILD or TARGET to pick the correct OS/CPU variables to check |
|
679 # conditionals against. |
|
680 # $2 - Optional prefix for each variable defined. |
|
681 AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP], |
|
682 [ |
|
683 #### CPU DEFINES, these should (in theory) be independent on toolchain |
|
684 |
|
685 # Setup target CPU |
|
686 # Setup endianness |
|
687 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then |
|
688 $1_DEFINES_CPU_JVM="-DVM_LITTLE_ENDIAN" |
|
689 fi |
|
690 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
|
691 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the |
|
692 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN |
|
693 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then |
|
694 $1_DEFINES_CPU_JDK="-D_LITTLE_ENDIAN=" |
|
695 else |
|
696 $1_DEFINES_CPU_JDK="-D_BIG_ENDIAN=" |
|
697 fi |
|
698 else |
|
699 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then |
|
700 $1_DEFINES_CPU_JDK="-D_LITTLE_ENDIAN" |
|
701 else |
|
702 $1_DEFINES_CPU_JDK="-D_BIG_ENDIAN" |
|
703 fi |
|
704 fi |
|
705 |
|
706 # setup CPU bit size |
|
707 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DARCH='\"$FLAGS_CPU_LEGACY\"' \ |
|
708 -D$FLAGS_CPU_LEGACY" |
|
709 |
|
710 if test "x$FLAGS_CPU_BITS" = x64; then |
|
711 # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in |
|
712 # unpack200.exe. |
|
713 if test "x$FLAGS_OS" = xlinux || test "x$FLAGS_OS" = xmacosx; then |
|
714 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_LP64=1" |
|
715 fi |
|
716 if test "x$FLAGS_OS" != xsolaris && test "x$FLAGS_OS" != xaix; then |
|
717 # Solaris does not have _LP64=1 in the old build. |
|
718 # xlc on AIX defines _LP64=1 by default and issues a warning if we redefine it. |
|
719 $1_DEFINES_CPU_JVM="${$1_DEFINES_CPU_JVM} -D_LP64=1" |
|
720 fi |
|
721 fi |
|
722 |
|
723 # toolchain dependend, per-cpu |
|
724 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
|
725 if test "x$FLAGS_CPU_ARCH" = xx86; then |
|
726 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DcpuIntel -Di586 -D$FLAGS_CPU_LEGACY_LIB" |
|
727 fi |
|
728 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
|
729 if test "x$FLAGS_CPU" = xx86_64; then |
|
730 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_AMD64_ -Damd64" |
|
731 else |
|
732 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_X86_ -Dx86" |
|
733 fi |
|
734 fi |
|
735 |
|
736 # CFLAGS PER CPU |
|
737 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
|
738 # COMMON to gcc and clang |
|
739 if test "x$FLAGS_CPU" = xx86; then |
|
740 # Force compatibility with i586 on 32 bit intel platforms. |
|
741 $1_CFLAGS_CPU="-march=i586" |
|
742 fi |
|
743 fi |
|
744 |
|
745 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
|
746 if test "x$FLAGS_CPU" = xarm; then |
|
747 # -Wno-psabi to get rid of annoying "note: the mangling of 'va_list' has changed in GCC 4.4" |
|
748 $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)\"'" |
|
749 $1_CFLAGS_CPU_JVM="-DARM" |
|
750 elif test "x$FLAGS_CPU" = xaarch64; then |
|
751 if test "x$HOTSPOT_TARGET_CPU_PORT" = xarm64; then |
|
752 $1_CFLAGS_CPU_JVM="-fsigned-char -DARM" |
|
753 fi |
|
754 elif test "x$FLAGS_CPU_ARCH" = xppc; then |
|
755 $1_CFLAGS_CPU_JVM="-minsert-sched-nops=regroup_exact -mno-multiple -mno-string" |
|
756 if test "x$FLAGS_CPU" = xppc64; then |
|
757 # -mminimal-toc fixes `relocation truncated to fit' error for gcc 4.1. |
|
758 # Use ppc64 instructions, but schedule for power5 |
|
759 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -mminimal-toc -mcpu=powerpc64 -mtune=power5" |
|
760 elif test "x$FLAGS_CPU" = xppc64le; then |
|
761 # Little endian machine uses ELFv2 ABI. |
|
762 # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI. |
|
763 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8" |
|
764 fi |
|
765 elif test "x$FLAGS_CPU" = xs390x; then |
|
766 $1_CFLAGS_CPU="-mbackchain -march=z10" |
|
767 fi |
|
768 |
|
769 if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then |
|
770 # for all archs except arm and ppc, prevent gcc to omit frame pointer |
|
771 $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer" |
|
772 fi |
|
773 |
|
774 elif test "x$TOOLCHAIN_TYPE" = xclang; then |
|
775 if test "x$FLAGS_OS" = xlinux; then |
|
776 # ppc test not really needed for clang |
|
777 if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then |
|
778 # for all archs except arm and ppc, prevent gcc to omit frame pointer |
|
779 $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer" |
|
780 fi |
|
781 fi |
|
782 |
|
783 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
|
784 if test "x$FLAGS_CPU" = xx86_64; then |
|
785 # NOTE: -xregs=no%frameptr is supposed to be default on x64 |
|
786 $1_CFLAGS_CPU_JDK="-xregs=no%frameptr" |
|
787 elif test "x$FLAGS_CPU" = xsparcv9; then |
|
788 $1_CFLAGS_CPU_JVM="-xarch=sparc" |
|
789 $1_CFLAGS_CPU_JDK_LIBONLY="-xregs=no%appl" |
|
790 fi |
|
791 |
|
792 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
|
793 if test "x$FLAGS_CPU" = xppc64; then |
|
794 $1_CFLAGS_CPU_JVM="-qarch=ppc64" |
|
795 fi |
|
796 |
|
797 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
|
798 if test "x$FLAGS_CPU" = xx86; then |
|
799 $1_CFLAGS_CPU_JVM="-arch:IA32" |
|
800 elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then |
|
801 if test "x$DEBUG_LEVEL" != xrelease; then |
|
802 # NOTE: This is probably redundant; -homeparams is default on |
|
803 # non-release builds. |
|
804 $1_CFLAGS_CPU_JVM="-homeparams" |
|
805 fi |
|
806 fi |
|
807 fi |
|
808 |
|
809 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
|
810 TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, PREFIX: $2, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS($1)) |
|
811 $1_TOOLCHAIN_CFLAGS="${$1_GCC6_CFLAGS}" |
|
812 |
|
813 TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: [4.8], PREFIX: $2, |
|
814 IF_AT_LEAST: [ |
|
815 # These flags either do not work or give spurious warnings prior to gcc 4.8. |
|
816 $1_WARNING_CFLAGS_JVM="-Wno-format-zero-length -Wtype-limits -Wuninitialized" |
|
817 ] |
|
818 ) |
|
819 fi |
|
820 |
|
821 # EXPORT to API |
|
822 CFLAGS_JVM_COMMON="$ALWAYS_CFLAGS_JVM $ALWAYS_DEFINES_JVM $TOOLCHAIN_CFLAGS_JVM \ |
|
823 $OS_CFLAGS $OS_CFLAGS_JVM $CFLAGS_OS_DEF_JVM $DEBUG_CFLAGS_JVM \ |
|
824 $WARNING_CFLAGS $WARNING_CFLAGS_JVM $JVM_PICFLAG" |
|
825 |
|
826 CFLAGS_JDK_COMMON="$ALWAYS_CFLAGS_JDK $ALWAYS_DEFINES_JDK $TOOLCHAIN_CFLAGS_JDK \ |
|
827 $OS_CFLAGS $CFLAGS_OS_DEF_JDK $DEBUG_CFLAGS_JDK $DEBUG_OPTIONS_FLAGS_JDK \ |
|
828 $WARNING_CFLAGS $WARNING_CFLAGS_JDK" |
|
829 |
|
830 # Use ${$2EXTRA_CFLAGS} to block EXTRA_CFLAGS to be added to build flags. |
|
831 # (Currently we don't have any OPENJDK_BUILD_EXTRA_CFLAGS, but that might |
|
832 # change in the future.) |
|
833 |
|
834 CFLAGS_JDK_COMMON_CONLY="$TOOLCHAIN_CFLAGS_JDK_CONLY $DEBUG_SYMBOLS_CFLAGS_JDK \ |
|
835 $WARNING_CFLAGS_JDK_CONLY ${$2EXTRA_CFLAGS}" |
|
836 CFLAGS_JDK_COMMON_CXXONLY="$ALWAYS_DEFINES_JDK_CXXONLY $TOOLCHAIN_CFLAGS_JDK_CXXONLY \ |
|
837 $DEBUG_SYMBOLS_CXXFLAGS_JDK $WARNING_CFLAGS_JDK_CXXONLY ${$2EXTRA_CXXFLAGS}" |
|
838 |
|
839 $1_CFLAGS_JVM="${$1_DEFINES_CPU_JVM} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JVM} ${$1_TOOLCHAIN_CFLAGS} ${$1_WARNING_CFLAGS_JVM}" |
|
840 $1_CFLAGS_JDK="${$1_DEFINES_CPU_JDK} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JDK} ${$1_TOOLCHAIN_CFLAGS}" |
|
841 |
|
842 $2JVM_CFLAGS="$CFLAGS_JVM_COMMON ${$1_CFLAGS_JVM} ${$2EXTRA_CXXFLAGS}" |
|
843 |
|
844 $2CFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CONLY ${$1_CFLAGS_JDK}" |
|
845 $2CXXFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CXXONLY ${$1_CFLAGS_JDK}" |
|
846 $2CFLAGS_JDKLIB="${$2CFLAGS_JDKEXE} $JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}" |
|
847 $2CXXFLAGS_JDKLIB="${$2CXXFLAGS_JDKEXE} $JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}" |
|
848 |
|
849 AC_SUBST($2JVM_CFLAGS) |
|
850 AC_SUBST($2CFLAGS_JDKLIB) |
|
851 AC_SUBST($2CFLAGS_JDKEXE) |
|
852 AC_SUBST($2CXXFLAGS_JDKLIB) |
|
853 AC_SUBST($2CXXFLAGS_JDKEXE) |
|
854 ]) |
|
855 |
|
856 # FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX]) |
|
857 # Arguments: |
|
858 # $1 - Prefix for each variable defined. |
|
859 AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS], |
|
860 [ |
|
861 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code |
|
862 # runs afoul of the more aggressive versions of these optimisations. |
|
863 # Notably, value range propagation now assumes that the this pointer of C++ |
|
864 # member functions is non-null. |
|
865 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks" |
|
866 dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation |
|
867 dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror], |
|
868 dnl IF_FALSE: [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""]) |
|
869 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse" |
|
870 dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation |
|
871 dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror], |
|
872 dnl IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""]) |
|
873 AC_MSG_NOTICE([GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}]) |
|
874 $1_GCC6_CFLAGS="${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}" |
|
875 ]) |
|
876 |
|
877 # Documentation on common flags used for solstudio in HIGHEST. |
|
878 # |
|
879 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be |
|
880 # done with care, there are some assumptions below that need to |
|
881 # be understood about the use of pointers, and IEEE behavior. |
|
882 # |
|
883 # -fns: Use non-standard floating point mode (not IEEE 754) |
|
884 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) |
|
885 # -fsingle: Use single precision floating point with 'float' |
|
886 # -xalias_level=basic: Assume memory references via basic pointer types do not alias |
|
887 # (Source with excessing pointer casting and data access with mixed |
|
888 # pointer types are not recommended) |
|
889 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions |
|
890 # (If you expect perfect errno behavior, do not use this) |
|
891 # -xdepend: Loop data dependency optimizations (need -xO3 or higher) |
|
892 # -xrestrict: Pointer parameters to functions do not overlap |
|
893 # (Similar to -xalias_level=basic usage, but less obvious sometimes. |
|
894 # If you pass in multiple pointers to the same data, do not use this) |
|
895 # -xlibmil: Inline some library routines |
|
896 # (If you expect perfect errno behavior, do not use this) |
|
897 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) |
|
898 # (If you expect perfect errno behavior, do not use this) |
|
899 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now |