1 #
   2 # Copyright (c) 1999, 2012, 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.  Oracle designates this
   8 # particular file as subject to the "Classpath" exception as provided
   9 # by Oracle in the LICENSE file that accompanied this code.
  10 #
  11 # This code is distributed in the hope that it will be useful, but WITHOUT
  12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # version 2 for more details (a copy is included in the LICENSE file that
  15 # accompanied this code).
  16 #
  17 # You should have received a copy of the GNU General Public License version
  18 # 2 along with this work; if not, write to the Free Software Foundation,
  19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 #
  21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22 # or visit www.oracle.com if you need additional information or have any
  23 # questions.
  24 #
  25 
  26 #
  27 # Makefile to specify compiler flags for programs and libraries
  28 # targeted to Linux.  Should not contain any rules.
  29 #
  30 # WARNING: This file is shared with other workspaces. 
  31 #          So when it includes other files, it must use JDK_TOPDIR.
  32 #
  33 
  34 # Warning: the following variables are overriden by Defs.gmk. Set
  35 # values will be silently ignored:
  36 #   CFLAGS        (set $(OTHER_CFLAGS) instead)
  37 #   CPPFLAGS      (set $(OTHER_CPPFLAGS) instead)
  38 #   CXXFLAGS      (set $(OTHER_CXXFLAGS) instead)
  39 #   LDFLAGS       (set $(OTHER_LDFAGS) instead)
  40 #   LDLIBS        (set $(EXTRA_LIBS) instead)
  41 #   LDLIBS_COMMON (set $(EXTRA_LIBS) instead)
  42 
  43 # Get shared JDK settings
  44 include $(JDK_MAKE_SHARED_DIR)/Defs.gmk
  45 
  46 # Part of INCREMENTAL_BUILD mechanism.
  47 #   Compiler emits things like:  path/file.o: file.h
  48 #   We want something like: relative_path/file.o relative_path/file.d: file.h
  49 CC_DEPEND        = -MM
  50 CC_DEPEND_FILTER = $(SED) -e 's!$*\.$(OBJECT_SUFFIX)!$(dir $@)& $(dir $@)$*.$(DEPEND_SUFFIX)!g'
  51 
  52 ifndef PLATFORM_SRC
  53   PLATFORM_SRC = $(BUILDDIR)/../src/solaris
  54 endif # PLATFORM_SRC
  55 
  56 # Platform specific closed sources
  57 ifndef OPENJDK
  58   ifndef CLOSED_PLATFORM_SRC
  59     CLOSED_PLATFORM_SRC = $(BUILDDIR)/../src/closed/solaris
  60   endif
  61 endif
  62 
  63 # platform specific include files
  64 PLATFORM_INCLUDE_NAME = $(PLATFORM)
  65 PLATFORM_INCLUDE      = $(INCLUDEDIR)/$(PLATFORM_INCLUDE_NAME)
  66 
  67 # suffix used for make dependencies files.
  68 DEPEND_SUFFIX = d
  69 # The suffix applied to the library name for FDLIBM
  70 FDDLIBM_SUFFIX = a
  71 # The suffix applied to scripts (.bat for windows, nothing for unix)
  72 SCRIPT_SUFFIX =
  73 # CC compiler object code output directive flag value
  74 CC_OBJECT_OUTPUT_FLAG = -o #trailing blank required!
  75 
  76 ENABLE_FULL_DEBUG_SYMBOLS ?= 1
  77 # since objcopy is optional, we set ZIP_DEBUGINFO_FILES later
  78 
  79 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
  80   # Default OBJCOPY comes from GNU Binutils on Linux:
  81   DEF_OBJCOPY=/usr/bin/objcopy
  82   ifdef CROSS_COMPILE_ARCH
  83     # don't try to generate .debuginfo files when cross compiling
  84     _JUNK_ := $(shell \
  85       echo >&2 "INFO: cross compiling for ARCH $(CROSS_COMPILE_ARCH)," \
  86         "skipping .debuginfo generation.")
  87     OBJCOPY=
  88   else
  89     OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
  90     ifneq ($(ALT_OBJCOPY),)
  91       _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
  92       # disable .debuginfo support by setting ALT_OBJCOPY to a non-existent path
  93       OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
  94     endif
  95   endif
  96 
  97   # Setting ENABLE_FULL_DEBUG_SYMBOLS=1 (and OBJCOPY) above enables the
  98   # JDK build to import .debuginfo or .diz files from the HotSpot build.
  99   # However, adding FDS support to the JDK build will occur in phases
 100   # so a different make variable (LIBRARY_SUPPORTS_FULL_DEBUG_SYMBOLS)
 101   # is used to indicate that a particular library supports FDS.
 102 
 103   ifeq ($(OBJCOPY),)
 104     _JUNK_ := $(shell \
 105       echo >&2 "INFO: no objcopy cmd found so cannot create .debuginfo files.")
 106     ENABLE_FULL_DEBUG_SYMBOLS=0
 107   else
 108     _JUNK_ := $(shell \
 109       echo >&2 "INFO: $(OBJCOPY) cmd found so will create .debuginfo files.")
 110 
 111     # Library stripping policies for .debuginfo configs:
 112     #   all_strip - strips everything from the library
 113     #   min_strip - strips most stuff from the library; leaves minimum symbols
 114     #   no_strip  - does not strip the library at all
 115     #
 116     # Oracle security policy requires "all_strip". A waiver was granted on
 117     # 2011.09.01 that permits using "min_strip" in the Java JDK and Java JRE.
 118     #
 119     # Currently, STRIP_POLICY is only used when Full Debug Symbols is enabled.
 120     STRIP_POLICY ?= min_strip
 121 
 122     _JUNK_ := $(shell \
 123       echo >&2 "INFO: STRIP_POLICY=$(STRIP_POLICY)")
 124 
 125     ZIP_DEBUGINFO_FILES ?= 1
 126 
 127     _JUNK_ := $(shell \
 128       echo >&2 "INFO: ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES)")
 129   endif
 130 endif
 131 
 132 #
 133 # Default optimization
 134 #
 135 
 136 ifndef OPTIMIZATION_LEVEL
 137   ifeq ($(PRODUCT), java)
 138     OPTIMIZATION_LEVEL = HIGHER
 139   else
 140     OPTIMIZATION_LEVEL = LOWER
 141   endif
 142 endif
 143 ifndef FASTDEBUG_OPTIMIZATION_LEVEL
 144   FASTDEBUG_OPTIMIZATION_LEVEL = LOWER
 145 endif
 146 
 147 CC_OPT/NONE     = 
 148 CC_OPT/LOWER    = -O2
 149 CC_OPT/HIGHER   = -O3
 150 CC_OPT/HIGHEST  = -O3
 151 
 152 CC_OPT          = $(CC_OPT/$(OPTIMIZATION_LEVEL))
 153 
 154 # For all platforms, do not omit the frame pointer register usage. 
 155 #    We need this frame pointer to make it easy to walk the stacks.
 156 #    This should be the default on X86, but ia64 and amd64 may not have this
 157 #    as the default.
 158 CFLAGS_REQUIRED_amd64   += -fno-omit-frame-pointer -D_LITTLE_ENDIAN
 159 CFLAGS_REQUIRED_i586    += -fno-omit-frame-pointer -D_LITTLE_ENDIAN
 160 CFLAGS_REQUIRED_ia64    += -fno-omit-frame-pointer -D_LITTLE_ENDIAN
 161 CFLAGS_REQUIRED_sparcv9 += -m64 -mcpu=v9
 162 LDFLAGS_COMMON_sparcv9  += -m64 -mcpu=v9
 163 CFLAGS_REQUIRED_sparc   += -m32 -mcpu=v9
 164 LDFLAGS_COMMON_sparc    += -m32 -mcpu=v9
 165 CFLAGS_REQUIRED_arm     += -fsigned-char -D_LITTLE_ENDIAN
 166 CFLAGS_REQUIRED_ppc     += -fsigned-char -D_BIG_ENDIAN
 167 ifeq ($(ZERO_BUILD), true)
 168   CFLAGS_REQUIRED       =  $(ZERO_ARCHFLAG)
 169   ifeq ($(ZERO_ENDIANNESS), little)
 170     CFLAGS_REQUIRED     += -D_LITTLE_ENDIAN
 171   endif
 172   LDFLAGS_COMMON        += $(ZERO_ARCHFLAG)
 173 else
 174   CFLAGS_REQUIRED       =  $(CFLAGS_REQUIRED_$(ARCH))
 175   LDFLAGS_COMMON        += $(LDFLAGS_COMMON_$(ARCH))
 176 endif
 177 
 178 # If this is a --hash-style=gnu system, use --hash-style=both
 179 #   The gnu .hash section won't work on some Linux systems like SuSE 10.
 180 _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | $(GREP) -- '--hash-style=gnu')
 181 ifneq ($(_HAS_HASH_STYLE_GNU),)
 182   LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
 183 endif
 184 LDFLAGS_COMMON          += $(LDFLAGS_HASH_STYLE)
 185 
 186 #
 187 # Selection of warning messages
 188 #
 189 GCC_INHIBIT     = -Wno-unused -Wno-parentheses
 190 GCC_STYLE       = 
 191 GCC_WARNINGS    = -W -Wall $(GCC_STYLE) $(GCC_INHIBIT)
 192 
 193 #
 194 # Treat compiler warnings as errors, if warnings not allowed
 195 #
 196 ifeq ($(COMPILER_WARNINGS_FATAL),true)
 197   GCC_WARNINGS += -Werror
 198 endif
 199 
 200 #
 201 # Misc compiler options
 202 #
 203 ifneq ($(ARCH),ppc)
 204   CFLAGS_COMMON   = -fno-strict-aliasing
 205 endif 
 206 PIC_CODE_LARGE = -fPIC
 207 PIC_CODE_SMALL = -fpic
 208 GLOBAL_KPIC = $(PIC_CODE_LARGE)
 209 CFLAGS_COMMON   += $(GLOBAL_KPIC) $(GCC_WARNINGS)
 210 ifeq ($(ARCH), amd64)
 211  CFLAGS_COMMON += -pipe
 212 endif
 213 
 214 # Linux 64bit machines use Dwarf2, which can be HUGE, have fastdebug use -g1
 215 DEBUG_FLAG = -g
 216 ifeq ($(FASTDEBUG), true)
 217   ifeq ($(ARCH_DATA_MODEL), 64)
 218     DEBUG_FLAG = -g1
 219   endif
 220 endif
 221 
 222 # DEBUG_BINARIES overrides everything, use full -g debug information
 223 ifeq ($(DEBUG_BINARIES), true)
 224   DEBUG_FLAG = -g
 225   CFLAGS_REQUIRED += $(DEBUG_FLAG)
 226 endif
 227 
 228 CFLAGS_OPT      = $(CC_OPT)
 229 CFLAGS_DBG      = $(DEBUG_FLAG)
 230 CFLAGS_COMMON += $(CFLAGS_REQUIRED)
 231 
 232 CXXFLAGS_COMMON = $(GLOBAL_KPIC) -DCC_NOEX $(GCC_WARNINGS)
 233 CXXFLAGS_OPT    = $(CC_OPT)
 234 CXXFLAGS_DBG    = $(DEBUG_FLAG)
 235 CXXFLAGS_COMMON += $(CFLAGS_REQUIRED)
 236 
 237 # FASTDEBUG: Optimize the code in the -g versions, gives us a faster debug java
 238 ifeq ($(FASTDEBUG), true)
 239   CFLAGS_DBG    += $(CC_OPT/$(FASTDEBUG_OPTIMIZATION_LEVEL))
 240   CXXFLAGS_DBG  += $(CC_OPT/$(FASTDEBUG_OPTIMIZATION_LEVEL))
 241 endif
 242 
 243 CPP_ARCH_FLAGS = -DARCH='"$(ARCH)"'
 244 
 245 # Alpha arch does not like "alpha" defined (potential general arch cleanup issue here)
 246 ifneq ($(ARCH),alpha)
 247   CPP_ARCH_FLAGS += -D$(ARCH)
 248 else
 249   CPP_ARCH_FLAGS += -D_$(ARCH)_
 250 endif
 251 
 252 CPPFLAGS_COMMON = $(CPP_ARCH_FLAGS) -DLINUX $(VERSION_DEFINES) \
 253                   -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_REENTRANT
 254 
 255 ifeq ($(ARCH_DATA_MODEL), 64)
 256 CPPFLAGS_COMMON += -D_LP64=1
 257 endif
 258 
 259 CPPFLAGS_OPT    = -DNDEBUG
 260 CPPFLAGS_DBG    = -DDEBUG
 261 ifneq ($(PRODUCT), java)
 262   CPPFLAGS_DBG    += -DLOGGING 
 263 endif
 264 
 265 ifdef LIBRARY
 266   # Libraries need to locate other libraries at runtime, and you can tell
 267   #   a library where to look by way of the dynamic runpaths (RPATH or RUNPATH)
 268   #   buried inside the .so. The $ORIGIN says to look relative to where
 269   #   the library itself is and it can be followed with relative paths from
 270   #   that. By default we always look in $ORIGIN, optionally we add relative
 271   #   paths if the Makefile sets LD_RUNPATH_EXTRAS to those relative paths.
 272   #   On Linux we add a flag -z origin, not sure if this is necessary, but 
 273   #   doesn't seem to hurt.
 274   #   The environment variable LD_LIBRARY_PATH will over-ride these runpaths.
 275   #   Try: 'readelf -d lib*.so' to see these settings in a library.
 276   #
 277   Z_ORIGIN_FLAG/sparc = -Xlinker -z -Xlinker origin
 278   Z_ORIGIN_FLAG/i586  = -Xlinker -z -Xlinker origin
 279   Z_ORIGIN_FLAG/amd64 = -Xlinker -z -Xlinker origin 
 280   Z_ORIGIN_FLAG/ia64  = -Xlinker -z -Xlinker origin
 281   Z_ORIGIN_FLAG/arm   = 
 282   Z_ORIGIN_FLAG/ppc   =
 283   Z_ORIGIN_FLAG/zero  = -Xlinker -z -Xlinker origin
 284 
 285   LDFLAG_Z_ORIGIN = $(Z_ORIGIN_FLAG/$(ARCH_FAMILY))
 286 
 287   LDFLAGS_COMMON += $(LDFLAG_Z_ORIGIN) -Xlinker -rpath -Xlinker \$$ORIGIN
 288   LDFLAGS_COMMON += $(LD_RUNPATH_EXTRAS:%=$(LDFLAG_Z_ORIGIN) -Xlinker -rpath -Xlinker \$$ORIGIN/%)
 289 
 290 endif
 291 
 292 EXTRA_LIBS += -lc
 293 
 294 LDFLAGS_DEFS_OPTION  = -Xlinker -z -Xlinker defs
 295 LDFLAGS_COMMON  += $(LDFLAGS_DEFS_OPTION)
 296 
 297 #
 298 # -L paths for finding and -ljava
 299 #
 300 LDFLAGS_OPT     = -Xlinker -O1
 301 LDFLAGS_COMMON += -L$(LIBDIR)/$(LIBARCH)
 302 LDFLAGS_COMMON += -Wl,-soname=$(LIB_PREFIX)$(LIBRARY).$(LIBRARY_SUFFIX)
 303 
 304 #
 305 # -static-libgcc is a gcc-3 flag to statically link libgcc, gcc-2.9x always
 306 # statically link libgcc but will print a warning with the flag. We don't 
 307 # want the warning, so check gcc version first.
 308 #
 309 ifeq ($(CC_MAJORVER),3)
 310   OTHER_LDFLAGS  += -static-libgcc
 311 endif
 312 
 313 # Automatic precompiled header option to use (if COMPILE_APPROACH=batch)
 314 #   (See Rules.gmk) The gcc 5 compiler might have an option for this?
 315 AUTOMATIC_PCH_OPTION = 
 316 
 317 #
 318 # Post Processing of libraries/executables
 319 #
 320 ifeq ($(VARIANT), OPT)
 321   ifneq ($(NO_STRIP), true)
 322     ifneq ($(DEBUG_BINARIES), true)
 323       # Debug 'strip -g' leaves local function Elf symbols (better stack
 324       # traces)
 325       POST_STRIP_PROCESS = $(STRIP) -g
 326     endif
 327   endif
 328 endif
 329 
 330 #
 331 # Use: ld $(LD_MAPFILE_FLAG) mapfile *.o
 332 #
 333 LD_MAPFILE_FLAG = -Xlinker --version-script -Xlinker
 334 
 335 #
 336 # Support for Quantify.
 337 #
 338 ifdef QUANTIFY
 339 QUANTIFY_CMD = quantify
 340 QUANTIFY_OPTIONS = -cache-dir=/tmp/quantify -always-use-cache-dir=yes
 341 LINK_PRE_CMD = $(QUANTIFY_CMD) $(QUANTIFY_OPTIONS)
 342 endif
 343 
 344 #
 345 # Path and option to link against the VM, if you have to.  Note that
 346 # there are libraries that link against only -ljava, but they do get
 347 # -L to the -ljvm, this is because -ljava depends on -ljvm, whereas
 348 # the library itself should not.
 349 #
 350 VM_NAME         = server
 351 JVMLIB          = -L$(LIBDIR)/$(LIBARCH)/$(VM_NAME) -ljvm
 352 JAVALIB         = -ljava $(JVMLIB)
 353 
 354 #
 355 # We want to privatize JVM symbols on Solaris. This is so the user can
 356 # write a function called FindClass and this should not override the 
 357 # FindClass that is inside the JVM. At this point in time we are not
 358 # concerned with other JNI libraries because we hope that there will
 359 # not be as many clashes there.
 360 #
 361 PRIVATIZE_JVM_SYMBOLS = false
 362 
 363 USE_PTHREADS = true
 364 override ALT_CODESET_KEY         = _NL_CTYPE_CODESET_NAME
 365 override AWT_RUNPATH             =
 366 override HAVE_ALTZONE            = false
 367 override HAVE_FILIOH             = false
 368 override HAVE_GETHRTIME          = false
 369 override HAVE_GETHRVTIME         = false
 370 override HAVE_SIGIGNORE          = true
 371 override LEX_LIBRARY             = -lfl
 372 ifeq ($(STATIC_CXX),true)
 373 override LIBCXX                  = -Wl,-Bstatic -lstdc++ -lgcc -Wl,-Bdynamic
 374 else
 375 override LIBCXX                  = -lstdc++
 376 endif
 377 override LIBPOSIX4               =
 378 override LIBSOCKET               =
 379 override LIBNSL                  =
 380 override LIBSCF                  =
 381 override LIBTHREAD               =
 382 override LIBDL                   = -ldl
 383 override MOOT_PRIORITIES         = true
 384 override NO_INTERRUPTIBLE_IO     = true
 385 ifeq ($(ARCH), amd64)
 386 override OPENWIN_LIB             = $(OPENWIN_HOME)/lib64
 387 else
 388 override OPENWIN_LIB             = $(OPENWIN_HOME)/lib
 389 endif
 390 override OTHER_M4FLAGS           = -D__GLIBC__ -DGNU_ASSEMBLER
 391 override SUN_CMM_SUBDIR          =
 392 override THREADS_FLAG            = native
 393 override USE_GNU_M4              = true
 394 override USING_GNU_TAR           = true
 395 override WRITE_LIBVERSION        = false
 396 
 397 # USE_EXECNAME forces the launcher to look up argv[0] on $PATH, and put the
 398 # resulting resolved absolute name of the executable in the environment
 399 # variable EXECNAME.  That executable name is then used that to locate the
 400 # installation area.
 401 override USE_EXECNAME            = true
 402 
 403 # If your platform has DPS, it will have Type1 fonts too, in which case
 404 # it is best to enable DPS support until such time as 2D's rasteriser
 405 # can fully handle Type1 fonts in all cases. Default is "yes".
 406 # HAVE_DPS should only be "no" if the platform has no DPS headers or libs
 407 # DPS (Displayable PostScript) is available on Solaris machines
 408 HAVE_DPS = no
 409 
 410 #
 411 # Japanese manpages
 412 #
 413 JA_SOURCE_ENCODING = eucJP
 414 JA_TARGET_ENCODINGS = UTF-8
 415 
 416 # Settings for the JDI - Serviceability Agent binding.
 417 HOTSPOT_SALIB_PATH   = $(HOTSPOT_IMPORT_PATH)/jre/lib/$(LIBARCH)
 418 SALIB_NAME = $(LIB_PREFIX)saproc.$(LIBRARY_SUFFIX)
 419 SA_DEBUGINFO_NAME = $(LIB_PREFIX)saproc.debuginfo
 420 SA_DIZ_NAME = $(LIB_PREFIX)saproc.diz
 421 
 422 # The JDI - Serviceability Agent binding is not currently supported
 423 # on Linux-ia64.
 424 ifeq ($(ARCH), ia64)
 425   INCLUDE_SA = false
 426 else
 427   INCLUDE_SA = true
 428 endif
 429 
 430 ifdef CROSS_COMPILE_ARCH
 431   # X11 headers are not under /usr/include
 432   OTHER_CFLAGS += -I$(OPENWIN_HOME)/include
 433   OTHER_CXXFLAGS += -I$(OPENWIN_HOME)/include
 434   OTHER_CPPFLAGS += -I$(OPENWIN_HOME)/include
 435 endif