Mercurial > hg > truffle
annotate make/linux/makefiles/gcc.make @ 1681:126ea7725993
6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes
| author | bobv |
|---|---|
| date | Tue, 03 Aug 2010 08:13:38 -0400 |
| parents | c18cbe5936b8 |
| children | d2ede61b7a12 |
| rev | line source |
|---|---|
| 0 | 1 # |
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2 # Copyright (c) 1999, 2009, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 # | |
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19 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 # or visit www.oracle.com if you need additional information or have any |
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21 # questions. |
| 0 | 22 # |
| 23 # | |
| 24 | |
| 25 #------------------------------------------------------------------------ | |
| 26 # CC, CPP & AS | |
| 27 | |
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28 ifdef ALT_COMPILER_PATH |
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29 CPP = $(ALT_COMPILER_PATH)/g++ |
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30 CC = $(ALT_COMPILER_PATH)/gcc |
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31 else |
| 0 | 32 CPP = g++ |
| 33 CC = gcc | |
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34 endif |
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35 |
| 0 | 36 AS = $(CC) -c |
| 37 | |
| 38 # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only | |
| 39 # prints the numbers (e.g. "2.95", "3.2.1") | |
| 40 CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1) | |
| 41 CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2) | |
| 42 | |
| 43 # check for precompiled headers support | |
| 44 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0" | |
| 45 USE_PRECOMPILED_HEADER=1 | |
| 46 PRECOMPILED_HEADER_DIR=. | |
| 47 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/incls/_precompiled.incl.gch | |
| 48 endif | |
| 49 | |
| 50 | |
| 51 #------------------------------------------------------------------------ | |
| 52 # Compiler flags | |
| 53 | |
| 54 # position-independent code | |
| 55 PICFLAG = -fPIC | |
| 56 | |
| 57 VM_PICFLAG/LIBJVM = $(PICFLAG) | |
| 58 VM_PICFLAG/AOUT = | |
| 59 VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO)) | |
| 60 | |
| 1010 | 61 ifeq ($(ZERO_BUILD), true) |
| 62 CFLAGS += $(LIBFFI_CFLAGS) | |
| 63 endif | |
| 0 | 64 CFLAGS += $(VM_PICFLAG) |
| 65 CFLAGS += -fno-rtti | |
| 66 CFLAGS += -fno-exceptions | |
| 67 CFLAGS += -D_REENTRANT | |
| 68 CFLAGS += -fcheck-new | |
| 69 | |
| 70 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH)) | |
| 71 ARCHFLAG/i486 = -m32 -march=i586 | |
| 72 ARCHFLAG/amd64 = -m64 | |
| 73 ARCHFLAG/ia64 = | |
| 74 ARCHFLAG/sparc = -m32 -mcpu=v9 | |
| 75 ARCHFLAG/sparcv9 = -m64 -mcpu=v9 | |
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76 ARCHFLAG/arm = -fsigned-char |
| 1010 | 77 ARCHFLAG/zero = $(ZERO_ARCHFLAG) |
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78 ifndef E500V2 |
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79 ARCHFLAG/ppc = -mcpu=powerpc |
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80 endif |
| 0 | 81 |
| 82 CFLAGS += $(ARCHFLAG) | |
| 83 AOUT_FLAGS += $(ARCHFLAG) | |
| 84 LFLAGS += $(ARCHFLAG) | |
| 85 ASFLAGS += $(ARCHFLAG) | |
| 86 | |
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87 ifdef E500V2 |
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88 CFLAGS += -DE500V2 |
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89 endif |
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90 |
| 0 | 91 # Use C++ Interpreter |
| 92 ifdef CC_INTERP | |
| 93 CFLAGS += -DCC_INTERP | |
| 94 endif | |
| 95 | |
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96 # Build for embedded targets |
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97 ifdef JAVASE_EMBEDDED |
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98 CFLAGS += -DJAVASE_EMBEDDED |
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99 endif |
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100 |
| 0 | 101 # Keep temporary files (.ii, .s) |
| 102 ifdef NEED_ASM | |
| 103 CFLAGS += -save-temps | |
| 104 else | |
| 105 CFLAGS += -pipe | |
| 106 endif | |
| 107 | |
| 108 # Compiler warnings are treated as errors | |
| 109 WARNINGS_ARE_ERRORS = -Werror | |
| 229 | 110 |
| 0 | 111 # Except for a few acceptable ones |
| 229 | 112 # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit |
| 113 # conversions which might affect the values. To avoid that, we need to turn | |
| 114 # it off explicitly. | |
| 115 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0" | |
| 116 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wsign-compare | |
| 117 else | |
| 0 | 118 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare |
| 229 | 119 endif |
| 120 | |
| 0 | 121 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ACCEPTABLE_WARNINGS) |
| 122 # Special cases | |
| 123 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) | |
| 124 | |
| 125 # The flags to use for an Optimized g++ build | |
| 126 OPT_CFLAGS += -O3 | |
| 127 | |
| 128 # Hotspot uses very unstrict aliasing turn this optimization off | |
| 129 OPT_CFLAGS += -fno-strict-aliasing | |
| 130 | |
| 131 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp | |
| 132 # if we use expensive-optimizations | |
| 133 ifeq ($(BUILDARCH), ia64) | |
| 134 OPT_CFLAGS += -fno-expensive-optimizations | |
| 135 endif | |
| 136 | |
| 137 OPT_CFLAGS/NOOPT=-O0 | |
| 138 | |
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139 # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation. |
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140 ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0" |
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141 OPT_CFLAGS/mulnode.o += -O0 |
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142 endif |
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143 |
| 0 | 144 #------------------------------------------------------------------------ |
| 145 # Linker flags | |
| 146 | |
| 147 # statically link libstdc++.so, work with gcc but ignored by g++ | |
| 148 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic | |
| 149 | |
| 150 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x. | |
| 151 ifneq ("${CC_VER_MAJOR}", "2") | |
| 152 STATIC_LIBGCC += -static-libgcc | |
| 153 endif | |
| 154 | |
| 155 ifeq ($(BUILDARCH), ia64) | |
| 156 LFLAGS += -Wl,-relax | |
| 157 endif | |
| 158 | |
| 159 # Enable linker optimization | |
| 160 LFLAGS += -Xlinker -O1 | |
| 161 | |
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162 # If this is a --hash-style=gnu system, use --hash-style=both |
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163 # The gnu .hash section won't work on some Linux systems like SuSE 10. |
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164 _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu') |
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165 ifneq ($(_HAS_HASH_STYLE_GNU),) |
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166 LDFLAGS_HASH_STYLE = -Wl,--hash-style=both |
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167 endif |
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168 LFLAGS += $(LDFLAGS_HASH_STYLE) |
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169 |
| 0 | 170 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file. |
| 171 MAPFLAG = -Xlinker --version-script=FILENAME | |
| 172 | |
| 173 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj | |
| 174 SONAMEFLAG = -Xlinker -soname=SONAME | |
| 175 | |
| 176 # Build shared library | |
| 177 SHARED_FLAG = -shared | |
| 178 | |
| 179 # Keep symbols even they are not used | |
| 180 AOUT_FLAGS += -export-dynamic | |
| 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 | |
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193 DEBUG_CFLAGS/arm = -g |
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194 DEBUG_CFLAGS/ppc = -g |
| 0 | 195 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH)) |
| 196 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),) | |
| 197 DEBUG_CFLAGS += -gstabs | |
| 198 endif | |
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199 |
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200 # DEBUG_BINARIES overrides everything, use full -g debug information |
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201 ifeq ($(DEBUG_BINARIES), true) |
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202 DEBUG_CFLAGS = -g |
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203 CFLAGS += $(DEBUG_CFLAGS) |
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204 endif |
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205 |
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206 # If we are building HEADLESS, pass on to VM |
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207 # so it can set the java.awt.headless property |
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208 ifdef HEADLESS |
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209 CFLAGS += -DHEADLESS |
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210 endif |
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211 |
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212 # We are building Embedded for a small device |
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213 # favor code space over speed |
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214 ifdef MINIMIZE_RAM_USAGE |
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215 CFLAGS += -DMINIMIZE_RAM_USAGE |
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216 endif |