100 ASFLAGS += -march=k8 -march=amd64
101 LFLAGS += -march=k8
102 endif
103
104
105 # Use C++ Interpreter
106 ifdef CC_INTERP
107 CFLAGS += -DCC_INTERP
108 endif
109
110 # Keep temporary files (.ii, .s)
111 ifdef NEED_ASM
112 CFLAGS += -save-temps
113 else
114 CFLAGS += -pipe
115 endif
116
117
118 # Compiler warnings are treated as errors
119 WARNINGS_ARE_ERRORS = -Werror
120 # Enable these warnings. See 'info gcc' about details on these options
121 WARNING_FLAGS = -Wpointer-arith -Wconversion -Wsign-compare -Wundef -Wformat=2 -Wno-error=format-nonliteral
122 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)
123 # Special cases
124 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
125
126 # The flags to use for an Optimized g++ build
127 OPT_CFLAGS += -O3
128
129 # Hotspot uses very unstrict aliasing turn this optimization off
130 OPT_CFLAGS += -fno-strict-aliasing
131
132 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp
133 # if we use expensive-optimizations
134 # Note: all ia64 setting reflect the ones for linux
135 # No actial testing was performed: there is no Solaris on ia64 presently
136 ifeq ($(BUILDARCH), ia64)
137 OPT_CFLAGS/bytecodeInterpreter.o += -fno-expensive-optimizations
138 endif
139
140 OPT_CFLAGS/NOOPT=-O0
141
142 # Flags for generating make dependency flags.
143 ifneq ("${CC_VER_MAJOR}", "2")
144 DEPFLAGS = -fpch-deps -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
145 endif
146
147 # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
148 ifeq ($(USE_PRECOMPILED_HEADER),0)
149 CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
150 endif
151
152 #------------------------------------------------------------------------
153 # Linker flags
154
155 # statically link libstdc++.so, work with gcc but ignored by g++
156 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
157
158 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
159 ifneq ("${CC_VER_MAJOR}", "2")
160 STATIC_LIBGCC += -static-libgcc
161 endif
162
163 ifeq ($(BUILDARCH), ia64)
164 # Note: all ia64 setting reflect the ones for linux
165 # No actial testing was performed: there is no Solaris on ia64 presently
166 LFLAGS += -Wl,-relax
167 endif
168
169 ifdef USE_GNULD
170 # Enable linker optimization
171 LFLAGS += -Xlinker -O1
172
173 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
174 MAPFLAG = -Xlinker --version-script=FILENAME
175 else
176 MAPFLAG = -Xlinker -M -Xlinker FILENAME
177 endif
178
179 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
180 SONAMEFLAG = -Xlinker -soname=SONAME
181
182 # Build shared library
183 SHARED_FLAG = -shared
184
185 #------------------------------------------------------------------------
186 # Debug flags
187
188 # Use the stabs format for debugging information (this is the default
189 # on gcc-2.91). It's good enough, has all the information about line
190 # numbers and local variables, and libjvm.so is only about 16M.
191 # Change this back to "-g" if you want the most expressive format.
192 # (warning: that could easily inflate libjvm.so to 150M!)
193 # Note: The Itanium gcc compiler crashes when using -gstabs.
194 DEBUG_CFLAGS/ia64 = -g
195 DEBUG_CFLAGS/amd64 = -g
196 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
197 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
198 DEBUG_CFLAGS += -gstabs
199 endif
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100 ASFLAGS += -march=k8 -march=amd64
101 LFLAGS += -march=k8
102 endif
103
104
105 # Use C++ Interpreter
106 ifdef CC_INTERP
107 CFLAGS += -DCC_INTERP
108 endif
109
110 # Keep temporary files (.ii, .s)
111 ifdef NEED_ASM
112 CFLAGS += -save-temps
113 else
114 CFLAGS += -pipe
115 endif
116
117
118 # Compiler warnings are treated as errors
119 WARNINGS_ARE_ERRORS = -Werror
120
121 # Enable these warnings. See 'info gcc' about details on these options
122 WARNING_FLAGS = -Wpointer-arith -Wconversion -Wsign-compare -Wundef -Wformat=2 -Wno-error=format-nonliteral
123 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)
124
125 # Special cases
126 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
127
128 # optimization control flags (Used by fastdebug and release variants)
129 OPT_CFLAGS/NOOPT=-O0
130 ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 8 \) \))" "1"
131 # Allow basic optimizations which don't distrupt debugging. (Principally dead code elimination)
132 OPT_CFLAGS/DEBUG=-Og
133 +else
134 # Allow no optimizations.
135 OPT_CFLAGS/DEBUG=-O0
136 endif
137 OPT_CFLAGS/SIZE=-Os
138 OPT_CFLAGS/SPEED=-O3
139
140 OPT_CFLAGS_DEFAULT ?= SPEED
141
142 # Hotspot uses very unstrict aliasing turn this optimization off
143 # This option is added to CFLAGS rather than OPT_CFLAGS
144 # so that OPT_CFLAGS overrides get this option too.
145 CFLAGS += -fno-strict-aliasing
146
147 ifdef OPT_CFLAGS
148 ifneq ("$(origin OPT_CFLAGS)", "command line")
149 $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.")
150 endif
151 endif
152
153 OPT_CFLAGS = $(OPT_CFLAGS/$(OPT_CFLAGS_DEFAULT)) $(OPT_EXTRAS)
154
155 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp
156 # if we use expensive-optimizations
157 # Note: all ia64 setting reflect the ones for linux
158 # No actial testing was performed: there is no Solaris on ia64 presently
159 ifeq ($(BUILDARCH), ia64)
160 OPT_CFLAGS/bytecodeInterpreter.o += -fno-expensive-optimizations
161 endif
162
163 # Work around some compiler bugs.
164 ifeq ($(USE_CLANG), true)
165 ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1)
166 OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)
167 endif
168 else
169 # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
170 ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 3), 1)
171 OPT_CFLAGS/mulnode.o += $(OPT_CFLAGS/NOOPT)
172 endif
173 endif
174
175 # Flags for generating make dependency flags.
176 ifneq ($(CC_VER_MAJOR), 2)
177 DEPFLAGS = -fpch-deps -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
178 endif
179
180 # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
181 ifeq ($(USE_PRECOMPILED_HEADER),0)
182 CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
183 endif
184
185 #------------------------------------------------------------------------
186 # Linker flags
187
188 # statically link libstdc++.so, work with gcc but ignored by g++
189 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
190
191
192 ifdef USE_GNULD
193 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
194 ifneq ($(CC_VER_MAJOR), 2)
195 STATIC_LIBGCC += -static-libgcc
196 endif
197
198 # Enable linker optimization
199 LFLAGS += -Xlinker -O1
200
201 ifeq ($(VARIANT), DBG)
202 # for relocations read-only
203 LFLAGS += -Xlinker -z -Xlinker relro
204
205 ifeq ($(FASTDEBUG), false)
206 # disable incremental relocations linking
207 LFLAGS += -Xlinker -z -Xlinker now
208 endif
209 endif
210
211 ifeq ($(BUILDARCH), ia64)
212 # Note: all ia64 setting reflect the ones for linux
213 # No actual testing was performed: there is no Solaris on ia64 presently
214 LFLAGS += -Wl,-relax
215 endif
216
217 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
218 MAPFLAG = -Xlinker --version-script=FILENAME
219 else
220 MAPFLAG = -Xlinker -M -Xlinker FILENAME
221 endif
222
223 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
224 SONAMEFLAG = -Xlinker -soname=SONAME
225
226 # Build shared library
227 SHARED_FLAG = -shared
228
229 #------------------------------------------------------------------------
230 # Debug flags
231
232 ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 8 \) \))" "1"
233 # Allow basic optimizations which don't distrupt debugging. (Principally dead code elimination)
234 DEBUG_CFLAGS=-Og
235 else
236 # Allow no optimizations.
237 DEBUG_CFLAGS=-O0
238 endif
239
240
241 # Use the stabs format for debugging information (this is the default
242 # on gcc-2.91). It's good enough, has all the information about line
243 # numbers and local variables, and libjvm.so is only about 16M.
244 # Change this back to "-g" if you want the most expressive format.
245 # (warning: that could easily inflate libjvm.so to 150M!)
246 # Note: The Itanium gcc compiler crashes when using -gstabs.
247 DEBUG_CFLAGS/ia64 = -g
248 DEBUG_CFLAGS/amd64 = -g
249 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
250 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
251 DEBUG_CFLAGS += -gstabs
252 endif
253
254 # Enable bounds checking.
255 ifeq ($(VARIANT), DBG)
256 # _FORTIFY_SOURCE appears in GCC 4.0+
257 ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) )" "0"
258 ifeq ($(FASTDEBUG), true)
259 # compile time size bounds checks
260 CFLAGS += -D_FORTIFY_SOURCE=1
261 else
262 # and runtime size bounds checks and paranoid stack smashing checks.
263 CFLAGS += -D_FORTIFY_SOURCE=2 -fstack-protector-all --param ssp-buffer-size=1
264 endif
265 endif
266 endif
267
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