Thu, 11 Feb 2010 19:53:00 -0800
Added tag hs17-b07 for changeset 3003ddd1d433
1 #
2 # Copyright 1999-2009 Sun Microsystems, Inc. All Rights Reserved.
3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 #
5 # This code is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License version 2 only, as
7 # published by the Free Software Foundation.
8 #
9 # This code is distributed in the hope that it will be useful, but WITHOUT
10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 # version 2 for more details (a copy is included in the LICENSE file that
13 # accompanied this code).
14 #
15 # You should have received a copy of the GNU General Public License version
16 # 2 along with this work; if not, write to the Free Software Foundation,
17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 #
19 # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 # CA 95054 USA or visit www.sun.com if you need additional information or
21 # have any questions.
22 #
23 #
25 #------------------------------------------------------------------------
26 # CC, CPP & AS
28 CPP = g++
29 CC = gcc
30 AS = $(CC) -c
32 # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
33 # prints the numbers (e.g. "2.95", "3.2.1")
34 CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
35 CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
37 # check for precompiled headers support
38 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
39 USE_PRECOMPILED_HEADER=1
40 PRECOMPILED_HEADER_DIR=.
41 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/incls/_precompiled.incl.gch
42 endif
45 #------------------------------------------------------------------------
46 # Compiler flags
48 # position-independent code
49 PICFLAG = -fPIC
51 VM_PICFLAG/LIBJVM = $(PICFLAG)
52 VM_PICFLAG/AOUT =
53 VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO))
55 ifeq ($(ZERO_BUILD), true)
56 CFLAGS += $(LIBFFI_CFLAGS)
57 endif
58 CFLAGS += $(VM_PICFLAG)
59 CFLAGS += -fno-rtti
60 CFLAGS += -fno-exceptions
61 CFLAGS += -D_REENTRANT
62 CFLAGS += -fcheck-new
64 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
65 ARCHFLAG/i486 = -m32 -march=i586
66 ARCHFLAG/amd64 = -m64
67 ARCHFLAG/ia64 =
68 ARCHFLAG/sparc = -m32 -mcpu=v9
69 ARCHFLAG/sparcv9 = -m64 -mcpu=v9
70 ARCHFLAG/zero = $(ZERO_ARCHFLAG)
72 CFLAGS += $(ARCHFLAG)
73 AOUT_FLAGS += $(ARCHFLAG)
74 LFLAGS += $(ARCHFLAG)
75 ASFLAGS += $(ARCHFLAG)
77 # Use C++ Interpreter
78 ifdef CC_INTERP
79 CFLAGS += -DCC_INTERP
80 endif
82 # Keep temporary files (.ii, .s)
83 ifdef NEED_ASM
84 CFLAGS += -save-temps
85 else
86 CFLAGS += -pipe
87 endif
89 # Compiler warnings are treated as errors
90 WARNINGS_ARE_ERRORS = -Werror
92 # Except for a few acceptable ones
93 # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
94 # conversions which might affect the values. To avoid that, we need to turn
95 # it off explicitly.
96 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
97 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wsign-compare
98 else
99 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
100 endif
102 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ACCEPTABLE_WARNINGS)
103 # Special cases
104 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
106 # The flags to use for an Optimized g++ build
107 OPT_CFLAGS += -O3
109 # Hotspot uses very unstrict aliasing turn this optimization off
110 OPT_CFLAGS += -fno-strict-aliasing
112 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp
113 # if we use expensive-optimizations
114 ifeq ($(BUILDARCH), ia64)
115 OPT_CFLAGS += -fno-expensive-optimizations
116 endif
118 OPT_CFLAGS/NOOPT=-O0
120 # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
121 ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0"
122 OPT_CFLAGS/mulnode.o += -O0
123 endif
125 #------------------------------------------------------------------------
126 # Linker flags
128 # statically link libstdc++.so, work with gcc but ignored by g++
129 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
131 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
132 ifneq ("${CC_VER_MAJOR}", "2")
133 STATIC_LIBGCC += -static-libgcc
134 endif
136 ifeq ($(BUILDARCH), ia64)
137 LFLAGS += -Wl,-relax
138 endif
140 # Enable linker optimization
141 LFLAGS += -Xlinker -O1
143 # If this is a --hash-style=gnu system, use --hash-style=both
144 # The gnu .hash section won't work on some Linux systems like SuSE 10.
145 _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu')
146 ifneq ($(_HAS_HASH_STYLE_GNU),)
147 LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
148 endif
149 LFLAGS += $(LDFLAGS_HASH_STYLE)
151 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
152 MAPFLAG = -Xlinker --version-script=FILENAME
154 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
155 SONAMEFLAG = -Xlinker -soname=SONAME
157 # Build shared library
158 SHARED_FLAG = -shared
160 # Keep symbols even they are not used
161 AOUT_FLAGS += -export-dynamic
163 #------------------------------------------------------------------------
164 # Debug flags
166 # Use the stabs format for debugging information (this is the default
167 # on gcc-2.91). It's good enough, has all the information about line
168 # numbers and local variables, and libjvm_g.so is only about 16M.
169 # Change this back to "-g" if you want the most expressive format.
170 # (warning: that could easily inflate libjvm_g.so to 150M!)
171 # Note: The Itanium gcc compiler crashes when using -gstabs.
172 DEBUG_CFLAGS/ia64 = -g
173 DEBUG_CFLAGS/amd64 = -g
174 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
175 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
176 DEBUG_CFLAGS += -gstabs
177 endif
179 # DEBUG_BINARIES overrides everything, use full -g debug information
180 ifeq ($(DEBUG_BINARIES), true)
181 DEBUG_CFLAGS = -g
182 CFLAGS += $(DEBUG_CFLAGS)
183 endif