1 #
2 # Copyright (c) 1998, 2011, 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 # Allow the user to turn off precompiled headers from the command line.
51 ifneq ($(USE_PRECOMPILED_HEADER),0)
52 USE_PRECOMPILED_HEADER=1
53 PRECOMPILED_HEADER_DIR=.
54 PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
55 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
56 endif
57 endif
58
59
60 #------------------------------------------------------------------------
61 # Compiler flags
62
63 # position-independent code
64 PICFLAG = -fPIC
65
66 VM_PICFLAG/LIBJVM = $(PICFLAG)
67 VM_PICFLAG/AOUT =
68 VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO))
69
70 CFLAGS += $(VM_PICFLAG)
71 CFLAGS += -fno-rtti
72 CFLAGS += -fno-exceptions
73 CFLAGS += -D_REENTRANT
74 CFLAGS += -fcheck-new
75
76 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
77
78 ARCHFLAG/sparc = -m32 -mcpu=v9
79 ARCHFLAG/sparcv9 = -m64 -mcpu=v9
80 ARCHFLAG/i486 = -m32 -march=i586
81 ARCHFLAG/amd64 = -m64 -march=k8
82
83
84 # Optional sub-directory in /usr/lib where BUILDARCH libraries are kept.
85 ISA_DIR=$(ISA_DIR/$(BUILDARCH))
86 ISA_DIR/amd64=/amd64
87 ISA_DIR/i486=
88 ISA_DIR/sparcv9=/64
89
90
91 CFLAGS += $(ARCHFLAG)
92 AOUT_FLAGS += $(ARCHFLAG)
93 LFLAGS += $(ARCHFLAG)
94 ASFLAGS += $(ARCHFLAG)
95
96 ifeq ($(BUILDARCH), amd64)
97 ASFLAGS += -march=k8 -march=amd64
98 LFLAGS += -march=k8
99 endif
100
101
102 # Use C++ Interpreter
103 ifdef CC_INTERP
104 CFLAGS += -DCC_INTERP
105 endif
106
107 # Keep temporary files (.ii, .s)
108 ifdef NEED_ASM
109 CFLAGS += -save-temps
110 else
111 CFLAGS += -pipe
112 endif
113
114
115 # Compiler warnings are treated as errors
116 WARNINGS_ARE_ERRORS = -Werror
117 # Enable these warnings. See 'info gcc' about details on these options
118 ADDITIONAL_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
119 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ADDITIONAL_WARNINGS)
120 # Special cases
121 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
122
123 # The flags to use for an Optimized g++ build
124 OPT_CFLAGS += -O3
125
126 # Hotspot uses very unstrict aliasing turn this optimization off
127 OPT_CFLAGS += -fno-strict-aliasing
128
129 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp
130 # if we use expensive-optimizations
131 # Note: all ia64 setting reflect the ones for linux
132 # No actial testing was performed: there is no Solaris on ia64 presently
133 ifeq ($(BUILDARCH), ia64)
134 OPT_CFLAGS/bytecodeInterpreter.o += -fno-expensive-optimizations
135 endif
136
137 OPT_CFLAGS/NOOPT=-O0
138
139 # Flags for generating make dependency flags.
140 ifneq ("${CC_VER_MAJOR}", "2")
141 DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
142 endif
143
144 # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
145 ifneq ($(USE_PRECOMPILED_HEADER),1)
146 CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
147 endif
148
149 #------------------------------------------------------------------------
150 # Linker flags
151
152 # statically link libstdc++.so, work with gcc but ignored by g++
153 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
154
155 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
156 ifneq ("${CC_VER_MAJOR}", "2")
157 STATIC_LIBGCC += -static-libgcc
158 endif
159
160 ifeq ($(BUILDARCH), ia64)
161 # Note: all ia64 setting reflect the ones for linux
162 # No actial testing was performed: there is no Solaris on ia64 presently
163 LFLAGS += -Wl,-relax
164 endif
165
166 ifdef USE_GNULD
167 # Enable linker optimization
168 LFLAGS += -Xlinker -O1
169
170 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
171 MAPFLAG = -Xlinker --version-script=FILENAME
172 else
173 MAPFLAG = -Xlinker -M -Xlinker FILENAME
174 endif
175
176 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
177 SONAMEFLAG = -Xlinker -soname=SONAME
178
179 # Build shared library
180 SHARED_FLAG = -shared
181
182 #------------------------------------------------------------------------
183 # Debug flags
184
185 # Use the stabs format for debugging information (this is the default
186 # on gcc-2.91). It's good enough, has all the information about line
187 # numbers and local variables, and libjvm_g.so is only about 16M.
188 # Change this back to "-g" if you want the most expressive format.
189 # (warning: that could easily inflate libjvm_g.so to 150M!)
190 # Note: The Itanium gcc compiler crashes when using -gstabs.
191 DEBUG_CFLAGS/ia64 = -g
192 DEBUG_CFLAGS/amd64 = -g
193 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
194 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
195 DEBUG_CFLAGS += -gstabs
196 endif
197
198 MCS = /usr/ccs/bin/mcs