1 #
2 # Copyright (c) 1998, 2008, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 # or visit www.oracle.com if you need additional information or have any
21 # questions.
22 #
23 #
24
25 #------------------------------------------------------------------------
26 # CC, CPP & AS
27
28 CPP = g++
29 CC = gcc
30 AS = $(CC) -c
31
32 Compiler = gcc
33
34 # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
35 # prints the numbers (e.g. "2.95", "3.2.1")
36 CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
37 CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
38
39 # Check for the versions of C++ and C compilers ($CPP and $CC) used.
40
41 # Get the last thing on the line that looks like x.x+ (x is a digit).
42 COMPILER_REV := \
43 $(shell $(CPP) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
44 C_COMPILER_REV := \
45 $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
46
47
48 # check for precompiled headers support
49 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
50 USE_PRECOMPILED_HEADER=1
51 PRECOMPILED_HEADER_DIR=.
52 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/incls/_precompiled.incl.gch
53 endif
54
55
56 #------------------------------------------------------------------------
57 # Compiler flags
58
59 # position-independent code
60 PICFLAG = -fPIC
61
62 VM_PICFLAG/LIBJVM = $(PICFLAG)
63 VM_PICFLAG/AOUT =
64 VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO))
65
66 CFLAGS += $(VM_PICFLAG)
67 CFLAGS += -fno-rtti
68 CFLAGS += -fno-exceptions
69 CFLAGS += -D_REENTRANT
70 CFLAGS += -fcheck-new
71
72 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
73
74 ARCHFLAG/sparc = -m32 -mcpu=v9
75 ARCHFLAG/sparcv9 = -m64 -mcpu=v9
76 ARCHFLAG/i486 = -m32 -march=i586
77 ARCHFLAG/amd64 = -m64 -march=k8
78
79
80 # Optional sub-directory in /usr/lib where BUILDARCH libraries are kept.
81 ISA_DIR=$(ISA_DIR/$(BUILDARCH))
82 ISA_DIR/amd64=/amd64
83 ISA_DIR/i486=
84 ISA_DIR/sparcv9=/64
85
86
87 CFLAGS += $(ARCHFLAG)
88 AOUT_FLAGS += $(ARCHFLAG)
89 LFLAGS += $(ARCHFLAG)
90 ASFLAGS += $(ARCHFLAG)
91
92 ifeq ($(BUILDARCH), amd64)
93 ASFLAGS += -march=k8 -march=amd64
94 LFLAGS += -march=k8
95 endif
96
97
98 # Use C++ Interpreter
99 ifdef CC_INTERP
100 CFLAGS += -DCC_INTERP
101 endif
102
103 # Keep temporary files (.ii, .s)
104 ifdef NEED_ASM
105 CFLAGS += -save-temps
106 else
107 CFLAGS += -pipe
108 endif
109
110
111 # Compiler warnings are treated as errors
112 WARNINGS_ARE_ERRORS = -Werror
113 # Enable these warnings. See 'info gcc' about details on these options
114 ADDITIONAL_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
115 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ADDITIONAL_WARNINGS)
116 # Special cases
117 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
118
119 # The flags to use for an Optimized g++ build
120 OPT_CFLAGS += -O3
121
122 # Hotspot uses very unstrict aliasing turn this optimization off
123 OPT_CFLAGS += -fno-strict-aliasing
124
125 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp
126 # if we use expensive-optimizations
127 # Note: all ia64 setting reflect the ones for linux
128 # No actial testing was performed: there is no Solaris on ia64 presently
129 ifeq ($(BUILDARCH), ia64)
130 OPT_CFLAGS/bytecodeInterpreter.o += -fno-expensive-optimizations
131 endif
132
133 OPT_CFLAGS/NOOPT=-O0
134 #------------------------------------------------------------------------
135 # Linker flags
136
137 # statically link libstdc++.so, work with gcc but ignored by g++
138 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
139
140 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
141 ifneq ("${CC_VER_MAJOR}", "2")
142 STATIC_LIBGCC += -static-libgcc
143 endif
144
145 ifeq ($(BUILDARCH), ia64)
146 # Note: all ia64 setting reflect the ones for linux
147 # No actial testing was performed: there is no Solaris on ia64 presently
148 LFLAGS += -Wl,-relax
149 endif
150
151 ifdef USE_GNULD
152 # Enable linker optimization
153 LFLAGS += -Xlinker -O1
154
155 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
156 MAPFLAG = -Xlinker --version-script=FILENAME
157 else
158 MAPFLAG = -Xlinker -M -Xlinker FILENAME
159 endif
160
161 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
162 SONAMEFLAG = -Xlinker -soname=SONAME
163
164 # Build shared library
165 SHARED_FLAG = -shared
166
167 #------------------------------------------------------------------------
168 # Debug flags
169
170 # Use the stabs format for debugging information (this is the default
171 # on gcc-2.91). It's good enough, has all the information about line
172 # numbers and local variables, and libjvm_g.so is only about 16M.
173 # Change this back to "-g" if you want the most expressive format.
174 # (warning: that could easily inflate libjvm_g.so to 150M!)
175 # Note: The Itanium gcc compiler crashes when using -gstabs.
176 DEBUG_CFLAGS/ia64 = -g
177 DEBUG_CFLAGS/amd64 = -g
178 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
179 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
180 DEBUG_CFLAGS += -gstabs
181 endif
182
183 MCS = /usr/ccs/bin/mcs