1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/build/linux/makefiles/gcc.make Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,158 @@
1.4 +#
1.5 +# Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 +# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 +#
1.8 +# This code is free software; you can redistribute it and/or modify it
1.9 +# under the terms of the GNU General Public License version 2 only, as
1.10 +# published by the Free Software Foundation.
1.11 +#
1.12 +# This code is distributed in the hope that it will be useful, but WITHOUT
1.13 +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 +# version 2 for more details (a copy is included in the LICENSE file that
1.16 +# accompanied this code).
1.17 +#
1.18 +# You should have received a copy of the GNU General Public License version
1.19 +# 2 along with this work; if not, write to the Free Software Foundation,
1.20 +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 +#
1.22 +# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 +# CA 95054 USA or visit www.sun.com if you need additional information or
1.24 +# have any questions.
1.25 +#
1.26 +#
1.27 +
1.28 +#------------------------------------------------------------------------
1.29 +# CC, CPP & AS
1.30 +
1.31 +CPP = g++
1.32 +CC = gcc
1.33 +AS = $(CC) -c
1.34 +
1.35 +# -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
1.36 +# prints the numbers (e.g. "2.95", "3.2.1")
1.37 +CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
1.38 +CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
1.39 +
1.40 +# check for precompiled headers support
1.41 +ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
1.42 +USE_PRECOMPILED_HEADER=1
1.43 +PRECOMPILED_HEADER_DIR=.
1.44 +PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/incls/_precompiled.incl.gch
1.45 +endif
1.46 +
1.47 +
1.48 +#------------------------------------------------------------------------
1.49 +# Compiler flags
1.50 +
1.51 +# position-independent code
1.52 +PICFLAG = -fPIC
1.53 +
1.54 +VM_PICFLAG/LIBJVM = $(PICFLAG)
1.55 +VM_PICFLAG/AOUT =
1.56 +
1.57 +ifneq ($(BUILDARCH), i486)
1.58 +VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO))
1.59 +else
1.60 +# PIC has significant overhead on x86, build nonpic VM for now.
1.61 +# Link JVM at a "good" base location to avoid unnecessary .text patching.
1.62 +JVM_BASE_ADDR = 0x06000000
1.63 +endif
1.64 +
1.65 +CFLAGS += $(VM_PICFLAG)
1.66 +CFLAGS += -fno-rtti
1.67 +CFLAGS += -fno-exceptions
1.68 +CFLAGS += -D_REENTRANT
1.69 +CFLAGS += -fcheck-new
1.70 +
1.71 +ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
1.72 +ARCHFLAG/i486 = -m32 -march=i586
1.73 +ARCHFLAG/amd64 = -m64
1.74 +ARCHFLAG/ia64 =
1.75 +ARCHFLAG/sparc = -m32 -mcpu=v9
1.76 +ARCHFLAG/sparcv9 = -m64 -mcpu=v9
1.77 +
1.78 +CFLAGS += $(ARCHFLAG)
1.79 +AOUT_FLAGS += $(ARCHFLAG)
1.80 +LFLAGS += $(ARCHFLAG)
1.81 +ASFLAGS += $(ARCHFLAG)
1.82 +
1.83 +# Use C++ Interpreter
1.84 +ifdef CC_INTERP
1.85 + CFLAGS += -DCC_INTERP
1.86 +endif
1.87 +
1.88 +# Keep temporary files (.ii, .s)
1.89 +ifdef NEED_ASM
1.90 + CFLAGS += -save-temps
1.91 +else
1.92 + CFLAGS += -pipe
1.93 +endif
1.94 +
1.95 +# Compiler warnings are treated as errors
1.96 +WARNINGS_ARE_ERRORS = -Werror
1.97 +# Except for a few acceptable ones
1.98 +ACCEPTABLE_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
1.99 +CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ACCEPTABLE_WARNINGS)
1.100 +# Special cases
1.101 +CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
1.102 +
1.103 +# The flags to use for an Optimized g++ build
1.104 +OPT_CFLAGS += -O3
1.105 +
1.106 +# Hotspot uses very unstrict aliasing turn this optimization off
1.107 +OPT_CFLAGS += -fno-strict-aliasing
1.108 +
1.109 +# The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp
1.110 +# if we use expensive-optimizations
1.111 +ifeq ($(BUILDARCH), ia64)
1.112 +OPT_CFLAGS += -fno-expensive-optimizations
1.113 +endif
1.114 +
1.115 +OPT_CFLAGS/NOOPT=-O0
1.116 +
1.117 +#------------------------------------------------------------------------
1.118 +# Linker flags
1.119 +
1.120 +# statically link libstdc++.so, work with gcc but ignored by g++
1.121 +STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
1.122 +
1.123 +# statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
1.124 +ifneq ("${CC_VER_MAJOR}", "2")
1.125 +STATIC_LIBGCC += -static-libgcc
1.126 +endif
1.127 +
1.128 +ifeq ($(BUILDARCH), ia64)
1.129 +LFLAGS += -Wl,-relax
1.130 +endif
1.131 +
1.132 +# Enable linker optimization
1.133 +LFLAGS += -Xlinker -O1
1.134 +
1.135 +# Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
1.136 +MAPFLAG = -Xlinker --version-script=FILENAME
1.137 +
1.138 +# Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
1.139 +SONAMEFLAG = -Xlinker -soname=SONAME
1.140 +
1.141 +# Build shared library
1.142 +SHARED_FLAG = -shared
1.143 +
1.144 +# Keep symbols even they are not used
1.145 +AOUT_FLAGS += -export-dynamic
1.146 +
1.147 +#------------------------------------------------------------------------
1.148 +# Debug flags
1.149 +
1.150 +# Use the stabs format for debugging information (this is the default
1.151 +# on gcc-2.91). It's good enough, has all the information about line
1.152 +# numbers and local variables, and libjvm_g.so is only about 16M.
1.153 +# Change this back to "-g" if you want the most expressive format.
1.154 +# (warning: that could easily inflate libjvm_g.so to 150M!)
1.155 +# Note: The Itanium gcc compiler crashes when using -gstabs.
1.156 +DEBUG_CFLAGS/ia64 = -g
1.157 +DEBUG_CFLAGS/amd64 = -g
1.158 +DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
1.159 +ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
1.160 +DEBUG_CFLAGS += -gstabs
1.161 +endif
