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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 |
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29 AC_DEFUN([FLAGS_SETUP_LINKER_FLAGS_FOR_JDK], |
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30 [ |
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31 ### LINKER |
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32 ### COMMON LINKER FLAGS |
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33 FLAGS_SETUP_LINKER_FLAGS_FOR_JDK_HELPER |
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34 |
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35 # TARGET CHAIN |
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36 # On some platforms (mac) the linker warns about non existing -L dirs. |
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37 # For any of the variants server, client or minimal, the dir matches the |
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38 # variant name. The "main" variant should be used for linking. For the |
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39 # rest, the dir is just server. |
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40 if HOTSPOT_CHECK_JVM_VARIANT(server) || HOTSPOT_CHECK_JVM_VARIANT(client) \ |
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41 || HOTSPOT_CHECK_JVM_VARIANT(minimal); then |
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42 TARGET_JVM_VARIANT_PATH=$JVM_VARIANT_MAIN |
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43 else |
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44 TARGET_JVM_VARIANT_PATH=server |
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45 fi |
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46 FLAGS_SETUP_LINKER_FLAGS_FOR_JDK_CPU_DEP([TARGET]) |
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47 |
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48 # BUILD CHAIN |
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49 |
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50 # When building a buildjdk, it's always only the server variant |
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51 BUILD_JVM_VARIANT_PATH=server |
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52 |
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53 FLAGS_SETUP_LINKER_FLAGS_FOR_JDK_CPU_DEP([BUILD], [OPENJDK_BUILD_]) |
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54 |
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55 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB" |
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56 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE ${TARGET_LDFLAGS_JDK_LIBPATH}" |
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57 AC_SUBST(LDFLAGS_TESTLIB) |
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58 AC_SUBST(LDFLAGS_TESTEXE) |
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59 ]) |
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60 |
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61 ################################################################################ |
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62 |
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63 # CPU independent |
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64 AC_DEFUN([FLAGS_SETUP_LINKER_FLAGS_FOR_JDK_HELPER], |
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65 [ |
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66 # BASIC_LDFLAGS (per toolchain) |
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67 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
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68 # If this is a --hash-style=gnu system, use --hash-style=both, why? |
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69 # We have previously set HAS_GNU_HASH if this is the case |
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70 if test -n "$HAS_GNU_HASH"; then |
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71 BASIC_LDFLAGS="-Wl,--hash-style=both" |
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72 LIBJSIG_HASHSTYLE_LDFLAGS="-Wl,--hash-style=both" |
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73 fi |
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74 |
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75 # And since we now know that the linker is gnu, then add -z defs, to forbid |
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76 # undefined symbols in object files. |
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77 BASIC_LDFLAGS="$BASIC_LDFLAGS -Wl,-z,defs" |
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78 |
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79 BASIC_LDFLAGS_JVM_ONLY="-Wl,-z,noexecstack -Wl,-O1" |
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80 |
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81 BASIC_LDFLAGS_JDK_LIB_ONLY="-Wl,-z,noexecstack" |
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82 LIBJSIG_NOEXECSTACK_LDFLAGS="-Wl,-z,noexecstack" |
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83 |
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84 |
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85 if test "x$HAS_LINKER_RELRO" = "xtrue"; then |
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86 BASIC_LDFLAGS_JVM_ONLY="$BASIC_LDFLAGS_JVM_ONLY $LINKER_RELRO_FLAG" |
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87 fi |
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88 |
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89 elif test "x$TOOLCHAIN_TYPE" = xclang; then |
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90 BASIC_LDFLAGS_JVM_ONLY="-mno-omit-leaf-frame-pointer -mstack-alignment=16 -stdlib=libstdc++ -fPIC" |
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91 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
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92 BASIC_LDFLAGS="-Wl,-z,defs" |
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93 BASIC_LDFLAGS_ONLYCXX="-norunpath" |
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94 BASIC_LDFLAGS_ONLYCXX_JDK_ONLY="-xnolib" |
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95 |
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96 BASIC_LDFLAGS_JDK_ONLY="-ztext" |
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97 BASIC_LDFLAGS_JVM_ONLY="-library=%none -mt -z noversion" |
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98 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
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99 BASIC_LDFLAGS="-b64 -brtl -bnolibpath -bexpall -bernotok -btextpsize:64K -bdatapsize:64K -bstackpsize:64K" |
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100 BASIC_LDFLAGS_JVM_ONLY="-Wl,-lC_r" |
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101 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
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102 BASIC_LDFLAGS="-nologo -opt:ref" |
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103 BASIC_LDFLAGS_JDK_ONLY="-incremental:no" |
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104 BASIC_LDFLAGS_JVM_ONLY="-opt:icf,8 -subsystem:windows -base:0x8000000" |
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105 fi |
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106 |
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107 # OS_LDFLAGS (per toolchain) |
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108 if test "x$TOOLCHAIN_TYPE" = xclang || test "x$TOOLCHAIN_TYPE" = xgcc; then |
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109 if test "x$OPENJDK_TARGET_OS" = xmacosx; then |
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110 # Assume clang or gcc. |
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111 # FIXME: We should really generalize SET_SHARED_LIBRARY_ORIGIN instead. |
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112 OS_LDFLAGS_JVM_ONLY="-Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.." |
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113 OS_LDFLAGS_JDK_ONLY="-mmacosx-version-min=\$(MACOSX_VERSION_MIN)" |
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114 fi |
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115 fi |
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116 |
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117 # DEBUGLEVEL_LDFLAGS (per toolchain) |
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118 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
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119 if test "x$OPENJDK_TARGET_OS" = xlinux; then |
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120 if test x$DEBUG_LEVEL = xrelease; then |
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121 DEBUGLEVEL_LDFLAGS_JDK_ONLY="$DEBUGLEVEL_LDFLAGS_JDK_ONLY -Wl,-O1" |
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122 else |
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123 # mark relocations read only on (fast/slow) debug builds |
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124 if test "x$HAS_LINKER_RELRO" = "xtrue"; then |
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125 DEBUGLEVEL_LDFLAGS_JDK_ONLY="$LINKER_RELRO_FLAG" |
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126 fi |
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127 fi |
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128 if test x$DEBUG_LEVEL = xslowdebug; then |
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129 if test "x$HAS_LINKER_NOW" = "xtrue"; then |
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130 # do relocations at load |
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131 DEBUGLEVEL_LDFLAGS="$LINKER_NOW_FLAG" |
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132 fi |
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133 fi |
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134 fi |
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135 elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
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136 # We need '-qminimaltoc' or '-qpic=large -bbigtoc' if the TOC overflows. |
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137 # Hotspot now overflows its 64K TOC (currently only for debug), |
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138 # so we build with '-qpic=large -bbigtoc'. |
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139 if test "x$DEBUG_LEVEL" != xrelease; then |
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140 DEBUGLEVEL_LDFLAGS_JVM_ONLY="$DEBUGLEVEL_LDFLAGS_JVM_ONLY -bbigtoc" |
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141 fi |
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142 fi |
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143 |
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144 # EXECUTABLE_LDFLAGS (per toolchain) |
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145 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
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146 EXECUTABLE_LDFLAGS="$EXECUTABLE_LDFLAGS -Wl,--allow-shlib-undefined" |
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147 fi |
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148 |
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149 # EXPORT to old api |
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150 LDFLAGS_CXX_JDK="$BASIC_LDFLAGS_ONLYCXX $BASIC_LDFLAGS_ONLYCXX_JDK_ONLY" |
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151 AC_SUBST(LDFLAGS_CXX_JDK) |
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152 AC_SUBST(LIBJSIG_HASHSTYLE_LDFLAGS) |
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153 AC_SUBST(LIBJSIG_NOEXECSTACK_LDFLAGS) |
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154 ]) |
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155 |
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156 ################################################################################ |
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157 # $1 - Either BUILD or TARGET to pick the correct OS/CPU variables to check |
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158 # conditionals against. |
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159 # $2 - Optional prefix for each variable defined. |
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160 AC_DEFUN([FLAGS_SETUP_LINKER_FLAGS_FOR_JDK_CPU_DEP], |
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161 [ |
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162 # CPU_LDFLAGS (per toolchain) |
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163 # These can differ between TARGET and BUILD. |
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164 if test "x$TOOLCHAIN_TYPE" = xgcc; then |
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165 if test "x${OPENJDK_$1_CPU}" = xx86; then |
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166 $1_CPU_LDFLAGS_JVM_ONLY="-march=i586" |
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167 fi |
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168 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then |
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169 if test "x${OPENJDK_$1_CPU}" = "xsparcv9"; then |
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170 $1_CPU_LDFLAGS_JVM_ONLY="-xarch=sparc" |
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171 fi |
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172 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
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173 if test "x${OPENJDK_$1_CPU}" = "xx86"; then |
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174 $1_CPU_LDFLAGS="-safeseh" |
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175 # NOTE: Old build added -machine. Probably not needed. |
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176 $1_CPU_LDFLAGS_JVM_ONLY="-machine:I386" |
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177 LDFLAGS_STACK_SIZE=327680 |
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178 else |
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179 $1_CPU_LDFLAGS_JVM_ONLY="-machine:AMD64" |
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180 LDFLAGS_STACK_SIZE=1048576 |
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181 fi |
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182 $1_CPU_EXECUTABLE_LDFLAGS="-stack:$LDFLAGS_STACK_SIZE" |
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183 fi |
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184 |
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185 # JVM_VARIANT_PATH depends on if this is build or target... |
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186 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
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187 $1_LDFLAGS_JDK_LIBPATH="-libpath:${OUTPUTDIR}/support/modules_libs/java.base" |
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188 else |
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189 $1_LDFLAGS_JDK_LIBPATH="-L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base \ |
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190 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/${$1_JVM_VARIANT_PATH}" |
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191 fi |
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192 |
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193 # Export to old API, prefix with $2 if present |
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194 LDFLAGS_JDK_COMMON="$BASIC_LDFLAGS $BASIC_LDFLAGS_JDK_ONLY $OS_LDFLAGS_JDK_ONLY $DEBUGLEVEL_LDFLAGS_JDK_ONLY" |
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195 $2LDFLAGS_JDKLIB="$LDFLAGS_JDK_COMMON $BASIC_LDFLAGS_JDK_LIB_ONLY ${$1_LDFLAGS_JDK_LIBPATH}" |
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196 $2LDFLAGS_JDKEXE="$LDFLAGS_JDK_COMMON $EXECUTABLE_LDFLAGS ${$1_CPU_EXECUTABLE_LDFLAGS}" |
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197 |
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198 $2JVM_LDFLAGS="$BASIC_LDFLAGS $BASIC_LDFLAGS_JVM_ONLY $OS_LDFLAGS_JVM_ONLY \ |
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199 $DEBUGLEVEL_LDFLAGS $DEBUGLEVEL_LDFLAGS_JVM_ONLY $BASIC_LDFLAGS_ONLYCXX \ |
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200 ${$1_CPU_LDFLAGS} ${$1_CPU_LDFLAGS_JVM_ONLY}" |
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201 |
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202 AC_SUBST($2LDFLAGS_JDKLIB) |
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203 AC_SUBST($2LDFLAGS_JDKEXE) |
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204 |
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205 AC_SUBST($2JVM_LDFLAGS) |
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206 ]) |