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1 #
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2 # Copyright 1998-2008 Sun Microsystems, Inc. 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.
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8 #
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9 # This code is distributed in the hope that it will be useful, but WITHOUT
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10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 # version 2 for more details (a copy is included in the LICENSE file that
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13 # accompanied this code).
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14 #
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15 # You should have received a copy of the GNU General Public License version
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16 # 2 along with this work; if not, write to the Free Software Foundation,
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17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 #
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19 # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 # CA 95054 USA or visit www.sun.com if you need additional information or
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21 # have any questions.
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22 #
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23 #
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24
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25 #------------------------------------------------------------------------
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26 # CC, CPP & AS
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27
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28 CPP = g++
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29 CC = gcc
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30 AS = $(CC) -c
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31
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32 Compiler = gcc
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33
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34 # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
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35 # prints the numbers (e.g. "2.95", "3.2.1")
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36 CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
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37 CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
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38
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39 # Check for the versions of C++ and C compilers ($CPP and $CC) used.
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40
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41 # Get the last thing on the line that looks like x.x+ (x is a digit).
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42 COMPILER_REV := \
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43 $(shell $(CPP) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
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44 C_COMPILER_REV := \
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45 $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
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46
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47
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48 # check for precompiled headers support
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49 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
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50 USE_PRECOMPILED_HEADER=1
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51 PRECOMPILED_HEADER_DIR=.
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52 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/incls/_precompiled.incl.gch
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53 endif
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54
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55
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56 #------------------------------------------------------------------------
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57 # Compiler flags
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58
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59 # position-independent code
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60 PICFLAG = -fPIC
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61
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62 VM_PICFLAG/LIBJVM = $(PICFLAG)
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63 VM_PICFLAG/AOUT =
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64 VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO))
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65
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66 CFLAGS += $(VM_PICFLAG)
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67 CFLAGS += -fno-rtti
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68 CFLAGS += -fno-exceptions
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69 CFLAGS += -D_REENTRANT
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70 CFLAGS += -fcheck-new
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71
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72 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
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73
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74 ARCHFLAG/sparc = -m32 -mcpu=v9
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75 ARCHFLAG/sparcv9 = -m64 -mcpu=v9
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76 ARCHFLAG/i486 = -m32 -march=i586
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77 ARCHFLAG/amd64 = -m64 -march=k8
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78
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79
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80 # Optional sub-directory in /usr/lib where BUILDARCH libraries are kept.
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81 ISA_DIR=$(ISA_DIR/$(BUILDARCH))
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82 ISA_DIR/amd64=/amd64
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83 ISA_DIR/i486=
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84 ISA_DIR/sparcv9=/64
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85
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86
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87 CFLAGS += $(ARCHFLAG)
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88 AOUT_FLAGS += $(ARCHFLAG)
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89 LFLAGS += $(ARCHFLAG)
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90 ASFLAGS += $(ARCHFLAG)
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91
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92 ifeq ($(BUILDARCH), amd64)
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93 ASFLAGS += -march=k8 -march=amd64
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94 LFLAGS += -march=k8
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95 endif
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96
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97
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98 # Use C++ Interpreter
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99 ifdef CC_INTERP
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100 CFLAGS += -DCC_INTERP
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101 endif
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102
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103 # Keep temporary files (.ii, .s)
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104 ifdef NEED_ASM
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105 CFLAGS += -save-temps
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106 else
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107 CFLAGS += -pipe
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108 endif
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109
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110
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111 # Compiler warnings are treated as errors
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112 WARNINGS_ARE_ERRORS = -Werror
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113 # Enable these warnings. See 'info gcc' about details on these options
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114 ADDITIONAL_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
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115 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ADDITIONAL_WARNINGS)
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116 # Special cases
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117 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
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118
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119 # The flags to use for an Optimized g++ build
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120 OPT_CFLAGS += -O3
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121
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122 # Hotspot uses very unstrict aliasing turn this optimization off
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123 OPT_CFLAGS += -fno-strict-aliasing
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124
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125 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp
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126 # if we use expensive-optimizations
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127 # Note: all ia64 setting reflect the ones for linux
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128 # No actial testing was performed: there is no Solaris on ia64 presently
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129 ifeq ($(BUILDARCH), ia64)
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130 OPT_CFLAGS/bytecodeInterpreter.o += -fno-expensive-optimizations
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131 endif
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132
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133 OPT_CFLAGS/NOOPT=-O0
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134 #------------------------------------------------------------------------
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135 # Linker flags
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136
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137 # statically link libstdc++.so, work with gcc but ignored by g++
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138 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
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139
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140 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
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141 ifneq ("${CC_VER_MAJOR}", "2")
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142 STATIC_LIBGCC += -static-libgcc
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143 endif
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144
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145 ifeq ($(BUILDARCH), ia64)
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146 # Note: all ia64 setting reflect the ones for linux
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147 # No actial testing was performed: there is no Solaris on ia64 presently
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148 LFLAGS += -Wl,-relax
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149 endif
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150
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151 ifdef USE_GNULD
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152 # Enable linker optimization
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153 LFLAGS += -Xlinker -O1
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154
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155 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
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156 MAPFLAG = -Xlinker --version-script=FILENAME
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157 else
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158 MAPFLAG = -Xlinker -M -Xlinker FILENAME
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159 endif
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160
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161 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
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162 SONAMEFLAG = -Xlinker -soname=SONAME
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163
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164 # Build shared library
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165 SHARED_FLAG = -shared
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166
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167 #------------------------------------------------------------------------
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168 # Debug flags
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169
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170 # Use the stabs format for debugging information (this is the default
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171 # on gcc-2.91). It's good enough, has all the information about line
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172 # numbers and local variables, and libjvm_g.so is only about 16M.
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173 # Change this back to "-g" if you want the most expressive format.
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174 # (warning: that could easily inflate libjvm_g.so to 150M!)
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175 # Note: The Itanium gcc compiler crashes when using -gstabs.
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176 DEBUG_CFLAGS/ia64 = -g
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177 DEBUG_CFLAGS/amd64 = -g
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178 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
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179 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
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180 DEBUG_CFLAGS += -gstabs
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181 endif
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182
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183 MCS = /usr/ccs/bin/mcs
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