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, CXX & AS 27 28 # If a SPEC is not set already, then use these defaults. 29 ifeq ($(SPEC),) 30 # When cross-compiling the ALT_COMPILER_PATH points 31 # to the cross-compilation toolset 32 ifdef CROSS_COMPILE_ARCH 33 CXX = $(ALT_COMPILER_PATH)/g++ 34 CC = $(ALT_COMPILER_PATH)/gcc 35 HOSTCXX = g++ 36 HOSTCC = gcc 37 STRIP = $(ALT_COMPILER_PATH)/strip 38 else 39 CXX = g++ 40 CC = gcc 41 HOSTCXX = $(CXX) 42 HOSTCC = $(CC) 43 STRIP = strip 44 endif 45 AS = $(CC) -c 46 endif 47 48 49 # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only 50 # prints the numbers (e.g. "2.95", "3.2.1") 51 CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1) 52 CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2) 53 54 # check for precompiled headers support 55 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0" 56 # Allow the user to turn off precompiled headers from the command line. 57 ifneq ($(USE_PRECOMPILED_HEADER),0) 58 PRECOMPILED_HEADER_DIR=. 59 PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp 60 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch 61 endif 62 endif 63 64 65 #------------------------------------------------------------------------ 66 # Compiler flags 67 68 # position-independent code 69 PICFLAG = -fPIC 70 71 VM_PICFLAG/LIBJVM = $(PICFLAG) 72 VM_PICFLAG/AOUT = 73 VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO)) 74 75 ifeq ($(JVM_VARIANT_ZERO), true) 76 CFLAGS += $(LIBFFI_CFLAGS) 77 endif 78 ifeq ($(JVM_VARIANT_ZEROSHARK), true) 79 CFLAGS += $(LIBFFI_CFLAGS) 80 CFLAGS += $(LLVM_CFLAGS) 81 endif 82 CFLAGS += $(VM_PICFLAG) 83 CFLAGS += -fno-rtti 84 CFLAGS += -fno-exceptions 85 CFLAGS += -D_REENTRANT 86 CFLAGS += -fcheck-new 87 # version 4 and above support fvisibility=hidden (matches jni_x86.h file) 88 # except 4.1.2 gives pointless warnings that can't be disabled (afaik) 89 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0" 90 CFLAGS += -fvisibility=hidden 91 endif 92 93 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH)) 94 ARCHFLAG/i486 = -m32 -march=i586 95 ARCHFLAG/amd64 = -m64 96 ARCHFLAG/ia64 = 97 ARCHFLAG/sparc = -m32 -mcpu=v9 98 ARCHFLAG/sparcv9 = -m64 -mcpu=v9 99 ARCHFLAG/arm = -fsigned-char 100 ARCHFLAG/zero = $(ZERO_ARCHFLAG) 101 ifndef E500V2 102 ARCHFLAG/ppc = -mcpu=powerpc 103 endif 104 105 CFLAGS += $(ARCHFLAG) 106 AOUT_FLAGS += $(ARCHFLAG) 107 LFLAGS += $(ARCHFLAG) 108 ASFLAGS += $(ARCHFLAG) 109 110 ifdef E500V2 111 CFLAGS += -DE500V2 112 endif 113 114 # Use C++ Interpreter 115 ifdef CC_INTERP 116 CFLAGS += -DCC_INTERP 117 endif 118 119 # Keep temporary files (.ii, .s) 120 ifdef NEED_ASM 121 CFLAGS += -save-temps 122 else 123 CFLAGS += -pipe 124 endif 125 126 # Compiler warnings are treated as errors 127 WARNINGS_ARE_ERRORS = -Werror 128 129 WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef -Wunused-function 130 131 # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit 132 # conversions which might affect the values. Only enable it in earlier versions. 133 ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0" 134 WARNING_FLAGS += -Wconversion 135 endif 136 137 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS) 138 # Special cases 139 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) 140 141 # The flags to use for an Optimized g++ build 142 OPT_CFLAGS/SIZE=-Os 143 OPT_CFLAGS/SPEED=-O3 144 145 # Hotspot uses very unstrict aliasing turn this optimization off 146 # This option is added to CFLAGS rather than OPT_CFLAGS 147 # so that OPT_CFLAGS overrides get this option too. 148 CFLAGS += -fno-strict-aliasing 149 150 OPT_CFLAGS_DEFAULT ?= SPEED 151 152 ifdef OPT_CFLAGS 153 ifneq ("$(origin OPT_CFLAGS)", "command line") 154 $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.") 155 endif 156 endif 157 158 OPT_CFLAGS = $(OPT_CFLAGS/$(OPT_CFLAGS_DEFAULT)) $(OPT_EXTRAS) 159 160 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp 161 # if we use expensive-optimizations 162 ifeq ($(BUILDARCH), ia64) 163 OPT_CFLAGS += -fno-expensive-optimizations 164 endif 165 166 OPT_CFLAGS/NOOPT=-O0 167 168 # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation. 169 ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0" 170 OPT_CFLAGS/mulnode.o += -O0 171 endif 172 173 # Flags for generating make dependency flags. 174 ifneq ("${CC_VER_MAJOR}", "2") 175 DEPFLAGS = -fpch-deps -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d) 176 endif 177 178 # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp. 179 ifeq ($(USE_PRECOMPILED_HEADER),0) 180 CFLAGS += -DDONT_USE_PRECOMPILED_HEADER 181 endif 182 183 #------------------------------------------------------------------------ 184 # Linker flags 185 186 # statically link libstdc++.so, work with gcc but ignored by g++ 187 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic 188 189 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x. 190 ifneq ("${CC_VER_MAJOR}", "2") 191 STATIC_LIBGCC += -static-libgcc 192 endif 193 194 ifeq ($(BUILDARCH), ia64) 195 LFLAGS += -Wl,-relax 196 endif 197 198 # Enable linker optimization 199 LFLAGS += -Xlinker -O1 200 201 # If this is a --hash-style=gnu system, use --hash-style=both 202 # The gnu .hash section won't work on some Linux systems like SuSE 10. 203 _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu') 204 ifneq ($(_HAS_HASH_STYLE_GNU),) 205 LDFLAGS_HASH_STYLE = -Wl,--hash-style=both 206 endif 207 LFLAGS += $(LDFLAGS_HASH_STYLE) 208 209 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file. 210 MAPFLAG = -Xlinker --version-script=FILENAME 211 212 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj 213 SONAMEFLAG = -Xlinker -soname=SONAME 214 215 # Build shared library 216 SHARED_FLAG = -shared 217 218 # Keep symbols even they are not used 219 AOUT_FLAGS += -Xlinker -export-dynamic 220 221 #------------------------------------------------------------------------ 222 # Debug flags 223 224 # DEBUG_BINARIES uses full -g debug information for all configs 225 ifeq ($(DEBUG_BINARIES), true) 226 CFLAGS += -g 227 else 228 # Use the stabs format for debugging information (this is the default 229 # on gcc-2.91). It's good enough, has all the information about line 230 # numbers and local variables, and libjvm.so is only about 16M. 231 # Change this back to "-g" if you want the most expressive format. 232 # (warning: that could easily inflate libjvm.so to 150M!) 233 # Note: The Itanium gcc compiler crashes when using -gstabs. 234 DEBUG_CFLAGS/ia64 = -g 235 DEBUG_CFLAGS/amd64 = -g 236 DEBUG_CFLAGS/arm = -g 237 DEBUG_CFLAGS/ppc = -g 238 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH)) 239 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),) 240 DEBUG_CFLAGS += -gstabs 241 endif 242 243 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1) 244 FASTDEBUG_CFLAGS/ia64 = -g 245 FASTDEBUG_CFLAGS/amd64 = -g 246 FASTDEBUG_CFLAGS/arm = -g 247 FASTDEBUG_CFLAGS/ppc = -g 248 FASTDEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH)) 249 ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),) 250 FASTDEBUG_CFLAGS += -gstabs 251 endif 252 253 OPT_CFLAGS/ia64 = -g 254 OPT_CFLAGS/amd64 = -g 255 OPT_CFLAGS/arm = -g 256 OPT_CFLAGS/ppc = -g 257 OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH)) 258 ifeq ($(OPT_CFLAGS/$(BUILDARCH)),) 259 OPT_CFLAGS += -gstabs 260 endif 261 endif 262 endif 263 264 # If we are building HEADLESS, pass on to VM 265 # so it can set the java.awt.headless property 266 ifdef HEADLESS 267 CFLAGS += -DHEADLESS 268 endif 269 270 # We are building Embedded for a small device 271 # favor code space over speed 272 ifdef MINIMIZE_RAM_USAGE 273 CFLAGS += -DMINIMIZE_RAM_USAGE 274 endif | 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, CXX & AS 27 28 # If a SPEC is not set already, then use these defaults. 29 ifeq ($(SPEC),) 30 # When cross-compiling the ALT_COMPILER_PATH points 31 # to the cross-compilation toolset 32 ifdef CROSS_COMPILE_ARCH 33 CXX = $(ALT_COMPILER_PATH)/g++ 34 CC = $(ALT_COMPILER_PATH)/gcc 35 HOSTCXX = g++ 36 HOSTCC = gcc 37 STRIP = $(ALT_COMPILER_PATH)/strip 38 else 39 ifeq ($(USE_CLANG), true) 40 CXX = clang++ 41 CC = clang 42 else 43 CXX = g++ 44 CC = gcc 45 endif 46 47 HOSTCXX = $(CXX) 48 HOSTCC = $(CC) 49 STRIP = strip 50 endif 51 AS = $(CC) -c 52 endif 53 54 55 ifeq ($(USE_CLANG), true) 56 CC_VER_MAJOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f1) 57 CC_VER_MINOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f2) 58 else 59 # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only 60 # prints the numbers (e.g. "2.95", "3.2.1") 61 CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1) 62 CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2) 63 endif 64 65 66 ifeq ($(USE_CLANG), true) 67 # Clang has precompiled headers support by default, but the user can switch 68 # it off by using 'USE_PRECOMPILED_HEADER=0'. 69 ifdef LP64 70 ifeq ($(USE_PRECOMPILED_HEADER),) 71 USE_PRECOMPILED_HEADER=1 72 endif 73 else 74 # We don't support precompiled headers on 32-bit builds because there some files are 75 # compiled with -fPIC while others are compiled without (see 'NONPIC_OBJ_FILES' rules.make) 76 # Clang produces an error if the PCH file was compiled with other options than the actual compilation unit. 77 USE_PRECOMPILED_HEADER=0 78 endif 79 80 ifeq ($(USE_PRECOMPILED_HEADER),1) 81 82 ifndef LP64 83 $(error " Precompiled Headers only supported on 64-bit platforms!") 84 endif 85 86 PRECOMPILED_HEADER_DIR=. 87 PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp 88 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.pch 89 90 PCH_FLAG = -include precompiled.hpp 91 PCH_FLAG/DEFAULT = $(PCH_FLAG) 92 PCH_FLAG/NO_PCH = -DNO_PCH 93 PCH_FLAG/BY_FILE = $(PCH_FLAG/$@)$(PCH_FLAG/DEFAULT$(PCH_FLAG/$@)) 94 95 VM_PCH_FLAG/LIBJVM = $(PCH_FLAG/BY_FILE) 96 VM_PCH_FLAG/AOUT = 97 VM_PCH_FLAG = $(VM_PCH_FLAG/$(LINK_INTO)) 98 99 # We only use precompiled headers for the JVM build 100 CFLAGS += $(VM_PCH_FLAG) 101 102 # There are some files which don't like precompiled headers 103 # The following files are build with 'OPT_CFLAGS/NOOPT' (-O0) in the opt build. 104 # But Clang doesn't support a precompiled header which was compiled with -O3 105 # to be used in a compilation unit which uses '-O0'. We could also prepare an 106 # extra '-O0' PCH file for the opt build and use it here, but it's probably 107 # not worth the effoert as long as only two files need this special handling. 108 PCH_FLAG/loopTransform.o = $(PCH_FLAG/NO_PCH) 109 PCH_FLAG/sharedRuntimeTrig.o = $(PCH_FLAG/NO_PCH) 110 PCH_FLAG/sharedRuntimeTrans.o = $(PCH_FLAG/NO_PCH) 111 112 endif 113 else # ($(USE_CLANG), true) 114 # check for precompiled headers support 115 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0" 116 # Allow the user to turn off precompiled headers from the command line. 117 ifneq ($(USE_PRECOMPILED_HEADER),0) 118 PRECOMPILED_HEADER_DIR=. 119 PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp 120 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch 121 endif 122 endif 123 endif 124 125 # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp. 126 ifeq ($(USE_PRECOMPILED_HEADER),0) 127 CFLAGS += -DDONT_USE_PRECOMPILED_HEADER 128 endif 129 130 131 #------------------------------------------------------------------------ 132 # Compiler flags 133 134 # position-independent code 135 PICFLAG = -fPIC 136 137 VM_PICFLAG/LIBJVM = $(PICFLAG) 138 VM_PICFLAG/AOUT = 139 VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO)) 140 141 ifeq ($(JVM_VARIANT_ZERO), true) 142 CFLAGS += $(LIBFFI_CFLAGS) 143 endif 144 ifeq ($(JVM_VARIANT_ZEROSHARK), true) 145 CFLAGS += $(LIBFFI_CFLAGS) 146 CFLAGS += $(LLVM_CFLAGS) 147 endif 148 CFLAGS += $(VM_PICFLAG) 149 CFLAGS += -fno-rtti 150 CFLAGS += -fno-exceptions 151 CFLAGS += -D_REENTRANT 152 ifeq ($(USE_CLANG),) 153 CFLAGS += -fcheck-new 154 # version 4 and above support fvisibility=hidden (matches jni_x86.h file) 155 # except 4.1.2 gives pointless warnings that can't be disabled (afaik) 156 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0" 157 CFLAGS += -fvisibility=hidden 158 endif 159 else 160 CFLAGS += -fvisibility=hidden 161 endif 162 163 ifeq ($(USE_CLANG), true) 164 # Before Clang 3.1, we had to pass the stack alignment specification directly to llvm with the help of '-mllvm' 165 # Starting with version 3.1, Clang understands the '-mstack-alignment' (and rejects '-mllvm -stack-alignment') 166 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 1 \) \))" "0" 167 STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mstack-alignment=16 168 else 169 STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mllvm -stack-alignment=16 170 endif 171 endif 172 173 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH)) 174 ARCHFLAG/i486 = -m32 -march=i586 175 ARCHFLAG/amd64 = -m64 $(STACK_ALIGNMENT_OPT) 176 ARCHFLAG/ia64 = 177 ARCHFLAG/sparc = -m32 -mcpu=v9 178 ARCHFLAG/sparcv9 = -m64 -mcpu=v9 179 ARCHFLAG/arm = -fsigned-char 180 ARCHFLAG/zero = $(ZERO_ARCHFLAG) 181 ifndef E500V2 182 ARCHFLAG/ppc = -mcpu=powerpc 183 endif 184 185 CFLAGS += $(ARCHFLAG) 186 AOUT_FLAGS += $(ARCHFLAG) 187 LFLAGS += $(ARCHFLAG) 188 ASFLAGS += $(ARCHFLAG) 189 190 ifdef E500V2 191 CFLAGS += -DE500V2 192 endif 193 194 # Use C++ Interpreter 195 ifdef CC_INTERP 196 CFLAGS += -DCC_INTERP 197 endif 198 199 # Keep temporary files (.ii, .s) 200 ifdef NEED_ASM 201 CFLAGS += -save-temps 202 else 203 CFLAGS += -pipe 204 endif 205 206 # Compiler warnings are treated as errors 207 WARNINGS_ARE_ERRORS = -Werror 208 209 ifeq ($(USE_CLANG), true) 210 # However we need to clean the code up before we can unrestrictedly enable this option with Clang 211 WARNINGS_ARE_ERRORS += -Wno-unused-value -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses 212 WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-constant-out-of-range-compare -Wno-tautological-compare 213 WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess 214 WARNINGS_ARE_ERRORS += -Wno-return-type -Wno-empty-body 215 endif 216 217 WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef -Wunused-function 218 219 ifeq ($(USE_CLANG),) 220 # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit 221 # conversions which might affect the values. Only enable it in earlier versions. 222 ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0" 223 WARNING_FLAGS += -Wconversion 224 endif 225 endif 226 227 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS) 228 # Special cases 229 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) 230 231 # The flags to use for an Optimized g++ build 232 OPT_CFLAGS/SIZE=-Os 233 OPT_CFLAGS/SPEED=-O3 234 235 # Hotspot uses very unstrict aliasing turn this optimization off 236 # This option is added to CFLAGS rather than OPT_CFLAGS 237 # so that OPT_CFLAGS overrides get this option too. 238 CFLAGS += -fno-strict-aliasing 239 240 OPT_CFLAGS_DEFAULT ?= SPEED 241 242 ifdef OPT_CFLAGS 243 ifneq ("$(origin OPT_CFLAGS)", "command line") 244 $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.") 245 endif 246 endif 247 248 OPT_CFLAGS = $(OPT_CFLAGS/$(OPT_CFLAGS_DEFAULT)) $(OPT_EXTRAS) 249 250 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp 251 # if we use expensive-optimizations 252 ifeq ($(BUILDARCH), ia64) 253 OPT_CFLAGS += -fno-expensive-optimizations 254 endif 255 256 OPT_CFLAGS/NOOPT=-O0 257 258 # Work around some compiler bugs. 259 ifeq ($(USE_CLANG), true) 260 ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1) 261 OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT) 262 endif 263 else 264 # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation. 265 ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 3), 1) 266 OPT_CFLAGS/mulnode.o += $(OPT_CFLAGS/NOOPT) 267 endif 268 endif 269 270 # Flags for generating make dependency flags. 271 DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d) 272 ifeq ($(USE_CLANG),) 273 ifneq ("${CC_VER_MAJOR}", "2") 274 DEPFLAGS += -fpch-deps 275 endif 276 endif 277 278 #------------------------------------------------------------------------ 279 # Linker flags 280 281 # statically link libstdc++.so, work with gcc but ignored by g++ 282 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic 283 284 ifeq ($(USE_CLANG),) 285 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x. 286 ifneq ("${CC_VER_MAJOR}", "2") 287 STATIC_LIBGCC += -static-libgcc 288 endif 289 290 ifeq ($(BUILDARCH), ia64) 291 LFLAGS += -Wl,-relax 292 endif 293 endif 294 295 # Enable linker optimization 296 LFLAGS += -Xlinker -O1 297 298 ifeq ($(USE_CLANG),) 299 # If this is a --hash-style=gnu system, use --hash-style=both 300 # The gnu .hash section won't work on some Linux systems like SuSE 10. 301 _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu') 302 ifneq ($(_HAS_HASH_STYLE_GNU),) 303 LDFLAGS_HASH_STYLE = -Wl,--hash-style=both 304 endif 305 else 306 # Don't know how to find out the 'hash style' of a system as '-dumpspecs' 307 # doesn't work for Clang. So for now we'll alwys use --hash-style=both 308 LDFLAGS_HASH_STYLE = -Wl,--hash-style=both 309 endif 310 311 LFLAGS += $(LDFLAGS_HASH_STYLE) 312 313 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file. 314 MAPFLAG = -Xlinker --version-script=FILENAME 315 316 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj 317 SONAMEFLAG = -Xlinker -soname=SONAME 318 319 # Build shared library 320 SHARED_FLAG = -shared 321 322 # Keep symbols even they are not used 323 AOUT_FLAGS += -Xlinker -export-dynamic 324 325 #------------------------------------------------------------------------ 326 # Debug flags 327 328 ifeq ($(USE_CLANG), true) 329 # Restrict the debug information created by Clang to avoid 330 # too big object files and speed the build up a little bit 331 # (see http://llvm.org/bugs/show_bug.cgi?id=7554) 332 CFLAGS += -flimit-debug-info 333 endif 334 335 # DEBUG_BINARIES uses full -g debug information for all configs 336 ifeq ($(DEBUG_BINARIES), true) 337 CFLAGS += -g 338 else 339 # Use the stabs format for debugging information (this is the default 340 # on gcc-2.91). It's good enough, has all the information about line 341 # numbers and local variables, and libjvm.so is only about 16M. 342 # Change this back to "-g" if you want the most expressive format. 343 # (warning: that could easily inflate libjvm.so to 150M!) 344 # Note: The Itanium gcc compiler crashes when using -gstabs. 345 DEBUG_CFLAGS/ia64 = -g 346 DEBUG_CFLAGS/amd64 = -g 347 DEBUG_CFLAGS/arm = -g 348 DEBUG_CFLAGS/ppc = -g 349 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH)) 350 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),) 351 ifeq ($(USE_CLANG), true) 352 # Clang doesn't understand -gstabs 353 OPT_CFLAGS += -g 354 else 355 OPT_CFLAGS += -gstabs 356 endif 357 endif 358 359 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1) 360 FASTDEBUG_CFLAGS/ia64 = -g 361 FASTDEBUG_CFLAGS/amd64 = -g 362 FASTDEBUG_CFLAGS/arm = -g 363 FASTDEBUG_CFLAGS/ppc = -g 364 FASTDEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH)) 365 ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),) 366 ifeq ($(USE_CLANG), true) 367 # Clang doesn't understand -gstabs 368 OPT_CFLAGS += -g 369 else 370 OPT_CFLAGS += -gstabs 371 endif 372 endif 373 374 OPT_CFLAGS/ia64 = -g 375 OPT_CFLAGS/amd64 = -g 376 OPT_CFLAGS/arm = -g 377 OPT_CFLAGS/ppc = -g 378 OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH)) 379 ifeq ($(OPT_CFLAGS/$(BUILDARCH)),) 380 ifeq ($(USE_CLANG), true) 381 # Clang doesn't understand -gstabs 382 OPT_CFLAGS += -g 383 else 384 OPT_CFLAGS += -gstabs 385 endif 386 endif 387 endif 388 endif 389 390 # If we are building HEADLESS, pass on to VM 391 # so it can set the java.awt.headless property 392 ifdef HEADLESS 393 CFLAGS += -DHEADLESS 394 endif 395 396 # We are building Embedded for a small device 397 # favor code space over speed 398 ifdef MINIMIZE_RAM_USAGE 399 CFLAGS += -DMINIMIZE_RAM_USAGE 400 endif |