libgcc/Makefile.in

   1 # Makefile.in
   2
   3 # Copyright (C) 2005, 2006, 2009, 2010, 2011 Free Software Foundation
   4 #
   5 # This file is part of GCC.
   6 #
   7 # GCC is free software; you can redistribute it and/or modify it under the
   8 # terms of the GNU Library General Public License as published by the Free
   9 # Software Foundation; either version 3 of the License, or (at your option)
  10 # any later version.
  11 #
  12 # GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  14 # FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15 # more details.
  16 #
  17 # You should have received a copy of the GNU General Public License along
  18 # with GCC; see the file COPYING3.  If not see
  19 # <http://www.gnu.org/licenses/>.
  20 #
  21
  22 libgcc_topdir = @libgcc_topdir@
  23 host_subdir = @host_subdir@
  24
  25 gcc_srcdir = $(libgcc_topdir)/gcc
  26 gcc_objdir = $(MULTIBUILDTOP)../../$(host_subdir)/gcc
  27
  28 srcdir = @srcdir@
  29
  30 prefix = @prefix@
  31
  32 exec_prefix = @exec_prefix@
  33 libdir = @libdir@
  34 shlib_slibdir = @slibdir@
  35
  36 SHELL = @SHELL@
  37
  38 cpu_type = @cpu_type@
  39 enable_shared = @enable_shared@
  40 decimal_float = @decimal_float@
  41 enable_decimal_float = @enable_decimal_float@
  42 fixed_point = @fixed_point@
  43
  44 host_noncanonical = @host_noncanonical@
  45 target_noncanonical = @target_noncanonical@
  46
  47 # List of extra object files that should be compiled for this target machine.
  48 # The rules for compiling them should be in the t-* file for the machine.
  49 EXTRA_PARTS = @extra_parts@
  50
  51 # Multilib support variables.
  52 MULTISRCTOP =
  53 MULTIBUILDTOP =
  54 MULTIDIRS =
  55 MULTISUBDIR =
  56 MULTIDO = true
  57 MULTICLEAN = true
  58
  59 INSTALL = @INSTALL@
  60 INSTALL_PROGRAM = @INSTALL_PROGRAM@
  61 INSTALL_DATA = @INSTALL_DATA@
  62 mkinstalldirs = $(SHELL) $(libgcc_topdir)/mkinstalldirs
  63
  64 objext = .o
  65
  66 AR = @AR@
  67 AR_FLAGS = rc
  68
  69 CC = @CC@
  70 CFLAGS = @CFLAGS@
  71 RANLIB = @RANLIB@
  72 LN_S = @LN_S@
  73
  74 PWD_COMMAND = $${PWDCMD-pwd}
  75
  76 # Flags to pass to a recursive make.
  77 FLAGS_TO_PASS = \
  78         "AR=$(AR)" \
  79         "AR_FLAGS=$(AR_FLAGS)" \
  80         "CC=$(CC)" \
  81         "CFLAGS=$(CFLAGS)" \
  82         "DESTDIR=$(DESTDIR)" \
  83         "EXTRA_OFILES=$(EXTRA_OFILES)" \
  84         "HDEFINES=$(HDEFINES)" \
  85         "INSTALL=$(INSTALL)" \
  86         "INSTALL_DATA=$(INSTALL_DATA)" \
  87         "INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \
  88         "LDFLAGS=$(LDFLAGS)" \
  89         "LOADLIBES=$(LOADLIBES)" \
  90         "RANLIB=$(RANLIB)" \
  91         "SHELL=$(SHELL)" \
  92         "prefix=$(prefix)" \
  93         "exec_prefix=$(exec_prefix)" \
  94         "libdir=$(libdir)" \
  95         "libsubdir=$(libsubdir)" \
  96         "tooldir=$(tooldir)"
  97
  98 # Dependencies for "all" are set later in the file.
  99 all: all-multi
 100         # Now that we have built all the objects, we need to copy
 101         # them back to the GCC directory.  Too many things (other
 102         # in-tree libraries, and DejaGNU) know about the layout
 103         # of the build tree, for now.
 104         $(MAKE) install-leaf DESTDIR=$(gcc_objdir) \
 105           slibdir= libsubdir= MULTIOSDIR=$(MULTIDIR)
 106
 107 .PHONY: all-multi
 108 all-multi:
 109         # If this is the top-level multilib, build all the other
 110         # multilibs.
 111         @: $(MAKE) ; exec $(MULTIDO) $(FLAGS_TO_PASS) multi-do DO=all
 112
 113 .PHONY: check installcheck
 114 check:
 115 installcheck:
 116
 117 .PHONY: all clean
 118
 119 clean:
 120         -rm -f config.h stamp-h stmp-ldirs libgcc.map
 121         -rm -f *$(objext)
 122         -rm -f *.dep
 123         -rm -f *.a
 124         -rm -f libunwind$(SHLIB_EXT)
 125         -rm -f libgcc_s*
 126         @$(MULTICLEAN) multi-clean DO=clean
 127 distclean: clean
 128         @$(MULTICLEAN) multi-clean DO=distclean
 129         -rm -f *~ Makefile config.cache config.status multilib.out
 130         -rm -f config.log
 131 maintainer-clean realclean: distclean
 132
 133 Makefile: $(srcdir)/Makefile.in config.status
 134         CONFIG_FILES=Makefile CONFIG_HEADERS= $(SHELL) ./config.status
 135
 136 # Depending on Makefile makes sure that config.status has been re-run
 137 # if needed.  This prevents problems with parallel builds.
 138 config.h: stamp-h ; @true
 139 stamp-h: $(srcdir)/config.in config.status Makefile
 140         CONFIG_FILES= CONFIG_HEADERS=config.h:$(srcdir)/config.in $(SHELL) ./config.status
 141
 142 config.status: $(srcdir)/configure $(srcdir)/config.host
 143         $(SHELL) ./config.status --recheck
 144
 145 AUTOCONF = autoconf
 146 configure_deps = \
 147         $(srcdir)/../config/enable.m4 \
 148         $(srcdir)/../config/tls.m4 \
 149         $(srcdir)/../config/acx.m4 \
 150         $(srcdir)/../config/no-executables.m4 \
 151         $(srcdir)/../config/override.m4 \
 152         $(srcdir)/../config/dfp.m4 \
 153
 154 $(srcdir)/configure: @MAINT@ $(srcdir)/configure.ac $(configure_deps)
 155         cd $(srcdir) && $(AUTOCONF)
 156
 157 include $(gcc_objdir)/libgcc.mvars
 158
 159 # Flags to pass to recursive makes.
 160
 161 AR_FOR_TARGET = $(AR)
 162 AR_FLAGS_FOR_TARGET =
 163 AR_CREATE_FOR_TARGET = $(AR_FOR_TARGET) $(AR_FLAGS_FOR_TARGET) rc
 164 AR_EXTRACT_FOR_TARGET = $(AR_FOR_TARGET) $(AR_FLAGS_FOR_TARGET) x
 165 AWK = @AWK@
 166 GCC_FOR_TARGET = $(CC)
 167 LIPO = @LIPO@
 168 LIPO_FOR_TARGET = $(LIPO)
 169 MACHMODE_H = machmode.h mode-classes.def insn-modes.h
 170 NM = @NM@
 171 NM_FOR_TARGET = $(NM)
 172 RANLIB_FOR_TARGET = $(RANLIB)
 173 STRIP = @STRIP@
 174 STRIP_FOR_TARGET = $(STRIP)
 175
 176 # Directory in which the compiler finds libraries etc.
 177 libsubdir = $(libdir)/gcc/$(host_noncanonical)/$(version)
 178 # Used to install the shared libgcc.
 179 slibdir = @slibdir@
 180 # Maybe used for DLLs on Windows targets.
 181 toolexecdir = @toolexecdir@
 182 toolexeclibdir = @toolexeclibdir@
 183
 184 export AR_FOR_TARGET
 185 export AR_CREATE_FOR_TARGET
 186 export AR_FLAGS_FOR_TARGET
 187 export AR_EXTRACT_FOR_TARGET
 188 export AWK
 189 export DESTDIR
 190 export GCC_FOR_TARGET
 191 export INCLUDES
 192 export INSTALL_DATA
 193 export LIB1ASMSRC
 194 export LIBGCC2_CFLAGS
 195 export LIPO_FOR_TARGET
 196 export MACHMODE_H
 197 export NM_FOR_TARGET
 198 export STRIP_FOR_TARGET
 199 export RANLIB_FOR_TARGET
 200 export libsubdir
 201 export slibdir
 202 export toolexecdir
 203 export toolexeclibdir
 204
 205 version := $(shell $(CC) -dumpversion)
 206
 207 ifeq ($(decimal_float),yes)
 208 ifeq ($(enable_decimal_float),bid)
 209 DECNUMINC = -I$(srcdir)/config/libbid -DENABLE_DECIMAL_BID_FORMAT
 210 else
 211 DECNUMINC = -I$(srcdir)/../libdecnumber/$(enable_decimal_float) \
 212             -I$(srcdir)/../libdecnumber
 213 endif
 214 else
 215 DECNUMINC =
 216 endif
 217
 218 # Specify the directories to be searched for header files.
 219 # Both . and srcdir are used, in that order,
 220 # so that *config.h will be found in the compilation
 221 # subdirectory rather than in the source directory.
 222 # -I$(@D) and -I$(srcdir)/$(@D) cause the subdirectory of the file
 223 # currently being compiled, in both source trees, to be examined as well.
 224 INCLUDES = -I. -I$(@D) -I$(gcc_objdir) \
 225            -I$(srcdir) -I$(srcdir)/$(@D) -I$(srcdir)/../gcc \
 226            -I$(srcdir)/../include $(DECNUMINC)
 227
 228 # Forcibly remove any profiling-related flags.  There is no point
 229 # in supporting profiled bootstrap in this library.
 230 override CFLAGS := $(filter-out -fprofile-generate -fprofile-use,$(CFLAGS))
 231
 232 # CFLAGS first is not perfect; normally setting CFLAGS should override any
 233 # options in LIBGCC2_CFLAGS.  But LIBGCC2_CFLAGS may contain -g0, and CFLAGS
 234 # will usually contain -g, so for the moment CFLAGS goes first.  We must
 235 # include CFLAGS - that's where multilib options live.
 236 INTERNAL_CFLAGS = $(CFLAGS) $(LIBGCC2_CFLAGS) $(HOST_LIBGCC2_CFLAGS) \
 237                   $(INCLUDES) @set_have_cc_tls@ @set_use_emutls@
 238
 239 MULTIDIR := $(shell $(CC) $(CFLAGS) -print-multi-directory)
 240 MULTIOSDIR := $(shell $(CC) $(CFLAGS) -print-multi-os-directory)
 241
 242 MULTIOSSUBDIR := $(shell if test $(MULTIOSDIR) != .; then echo /$(MULTIOSDIR); fi)
 243 inst_libdir = $(libsubdir)$(MULTISUBDIR)
 244 inst_slibdir = $(slibdir)$(MULTIOSSUBDIR)
 245
 246 gcc_compile_bare = $(CC) $(INTERNAL_CFLAGS)
 247 compile_deps = -MT $@ -MD -MP -MF $(basename $@).dep
 248 gcc_compile = $(gcc_compile_bare) -o $@ $(compile_deps)
 249 gcc_s_compile = $(gcc_compile) -DSHARED
 250
 251 objects = $(filter %$(objext),$^)
 252
 253 # Collect any host-specific information from Makefile fragments.
 254
 255 LIBGCC_VER_GNU_PREFIX = __
 256 LIBGCC_VER_SYMBOLS_PREFIX =
 257
 258 tmake_file = @tmake_file@
 259 include $(srcdir)/empty.mk $(tmake_file)
 260
 261 # Only handle shared libraries if both:
 262 #   - the user requested them
 263 #   - we know how to build them
 264 ifeq ($(SHLIB_LINK),)
 265   enable_shared := no
 266 endif
 267
 268 ifeq ($(enable_shared),yes)
 269   iterator = $(srcdir)/empty.mk $(patsubst %,$(srcdir)/shared-object.mk,$(iter-items))
 270
 271   install-shared = install-shared
 272
 273   ifneq ($(LIBUNWIND),)
 274     install-libunwind = install-libunwind
 275   endif
 276
 277 # For -fvisibility=hidden.  We need both a -fvisibility=hidden on
 278 # the command line, and a #define to prevent libgcc2.h etc from
 279 # overriding that with #pragmas.
 280 vis_hide = @vis_hide@
 281
 282 ifneq (,$(vis_hide))
 283
 284 # If we have -fvisibility=hidden, then we need to generate hide
 285 # lists for object files implemented in assembly.
 286 ASM_HIDDEN_OP = @asm_hidden_op@
 287
 288 define gen-hide-list
 289 $(NM) -pg $< | \
 290   $(AWK) 'NF == 3 && $$2 !~ /^[UN]$$/ && $$3 !~ /.*_compat/ \
 291          && $$3 !~ /.*@.*/ \
 292          { print "\t$(ASM_HIDDEN_OP)", $$3 }' > $@T
 293 mv -f $@T $@
 294 endef
 295 else
 296 gen-hide-list = echo > $@
 297 endif
 298
 299 else
 300 # Not enable_shared.
 301 iterator = $(srcdir)/empty.mk $(patsubst %,$(srcdir)/static-object.mk,$(iter-items))
 302 vis_hide =
 303 gen-hide-list = echo > \$@
 304 endif
 305
 306 ifneq ($(EXTRA_PARTS),)
 307   extra-parts = libgcc-extra-parts
 308   INSTALL_PARTS = $(EXTRA_PARTS)
 309 else
 310 ifneq ($(GCC_EXTRA_PARTS),)
 311   extra-parts = gcc-extra-parts
 312   INSTALL_PARTS = $(GCC_EXTRA_PARTS)
 313 endif
 314 endif
 315
 316 LIB2ADD += enable-execute-stack.c
 317
 318 # Library members defined in libgcc2.c.
 319 lib2funcs = _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _cmpdi2 _ucmpdi2    \
 320             _clear_cache _trampoline __main _absvsi2 \
 321             _absvdi2 _addvsi3 _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 \
 322             _negvsi2 _negvdi2 _ctors _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2  \
 323             _ctzsi2 _ctzdi2 _popcount_tab _popcountsi2 _popcountdi2        \
 324             _paritysi2 _paritydi2 _powisf2 _powidf2 _powixf2 _powitf2      \
 325             _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 _divxc3        \
 326             _divtc3 _bswapsi2 _bswapdi2 _clrsbsi2 _clrsbdi2
 327
 328 # The floating-point conversion routines that involve a single-word integer.
 329 # XX stands for the integer mode.
 330 swfloatfuncs = $(patsubst %,_fixuns%XX,sf df xf)
 331
 332 # Likewise double-word routines.
 333 dwfloatfuncs = $(patsubst %,_fix%XX,sf df xf tf) \
 334                $(patsubst %,_fixuns%XX,sf df xf tf) \
 335                $(patsubst %,_floatXX%,sf df xf tf) \
 336                $(patsubst %,_floatunXX%,sf df xf tf)
 337
 338 ifeq ($(LIB2_SIDITI_CONV_FUNCS),)
 339   lib2funcs += $(subst XX,si,$(swfloatfuncs))
 340   lib2funcs += $(subst XX,di,$(dwfloatfuncs))
 341 endif
 342
 343 # These might cause a divide overflow trap and so are compiled with
 344 # unwinder info.
 345 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
 346
 347 # Remove any objects from lib2funcs and LIB2_DIVMOD_FUNCS that are
 348 # defined as optimized assembly code in LIB1ASMFUNCS or as C code
 349 # in LIB2FUNCS_EXCLUDE.
 350 lib2funcs := $(filter-out $(LIB2FUNCS_EXCLUDE) $(LIB1ASMFUNCS),$(lib2funcs))
 351 LIB2_DIVMOD_FUNCS := $(filter-out $(LIB2FUNCS_EXCLUDE) $(LIB1ASMFUNCS), \
 352                        $(LIB2_DIVMOD_FUNCS))
 353
 354 # Build "libgcc1" (assembly) components.
 355 ifeq ($(enable_shared),yes)
 356
 357 lib1asmfuncs-o = $(patsubst %,%$(objext),$(LIB1ASMFUNCS))
 358 $(lib1asmfuncs-o): %$(objext): $(gcc_srcdir)/config/$(LIB1ASMSRC) %.vis
 359         $(gcc_compile) -DL$* -xassembler-with-cpp \
 360           -c $(gcc_srcdir)/config/$(LIB1ASMSRC) -include $*.vis
 361 $(patsubst %,%.vis,$(LIB1ASMFUNCS)): %.vis: %_s$(objext)
 362         $(gen-hide-list)
 363 libgcc-objects += $(lib1asmfuncs-o)
 364
 365 lib1asmfuncs-s-o = $(patsubst %,%_s$(objext),$(LIB1ASMFUNCS))
 366 $(lib1asmfuncs-s-o): %_s$(objext): $(gcc_srcdir)/config/$(LIB1ASMSRC)
 367         $(gcc_s_compile) -DL$* -xassembler-with-cpp \
 368           -c $(gcc_srcdir)/config/$(LIB1ASMSRC)
 369 libgcc-s-objects += $(lib1asmfuncs-s-o)
 370
 371 else
 372
 373 lib1asmfuncs-o = $(patsubst %,%$(objext),$(LIB1ASMFUNCS))
 374 $(lib1asmfuncs-o): %$(objext): $(gcc_srcdir)/config/$(LIB1ASMSRC)
 375         $(gcc_compile) -DL$* -xassembler-with-cpp \
 376           -c $(gcc_srcdir)/config/$(LIB1ASMSRC)
 377 libgcc-objects += $(lib1asmfuncs-o)
 378
 379 endif
 380
 381 # Build lib2funcs.  For the static library also include LIB2FUNCS_ST.
 382 lib2funcs-o = $(patsubst %,%$(objext),$(lib2funcs) $(LIB2FUNCS_ST))
 383 $(lib2funcs-o): %$(objext): $(gcc_srcdir)/libgcc2.c
 384         $(gcc_compile) -DL$* -c $(gcc_srcdir)/libgcc2.c \
 385           $(vis_hide)
 386 libgcc-objects += $(lib2funcs-o)
 387
 388 ifeq ($(enable_shared),yes)
 389 lib2funcs-s-o = $(patsubst %,%_s$(objext),$(lib2funcs))
 390 $(lib2funcs-s-o): %_s$(objext): $(gcc_srcdir)/libgcc2.c
 391         $(gcc_s_compile) -DL$* -c $(gcc_srcdir)/libgcc2.c
 392 libgcc-s-objects += $(lib2funcs-s-o)
 393 endif
 394
 395 ifneq ($(LIB2_SIDITI_CONV_FUNCS),)
 396 # Build libgcc2.c for each conversion function, with a specific
 397 # L<func> definition and LIBGCC2_UNITS_PER_WORD setting.  The DImode
 398 # functions are built with a wordsize of 4; the TImode functions are
 399 # built with the same labels, but a wordsize of 8.
 400
 401 sifuncs := $(filter-out $(LIB2FUNCS_EXCLUDE),$(subst XX,si,$(swfloatfuncs)))
 402 difuncs := $(filter-out $(LIB2FUNCS_EXCLUDE),$(subst XX,di,$(dwfloatfuncs)))
 403 tifuncs := $(filter-out $(LIB2FUNCS_EXCLUDE),$(subst XX,ti,$(dwfloatfuncs)))
 404
 405 iter-items := $(sifuncs) $(difuncs) $(tifuncs)
 406 iter-labels := $(sifuncs) $(difuncs) $(difuncs)
 407 iter-sizes := $(patsubst %,4,$(sifuncs) $(difuncs)) $(patsubst %,8,$(tifuncs))
 408
 409 include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/siditi-object.mk,$(iter-items))
 410
 411 libgcc-objects += $(patsubst %,%$(objext),$(sifuncs) $(difuncs) $(tifuncs))
 412 ifeq ($(enable_shared),yes)
 413 libgcc-s-objects += $(patsubst %,%_s$(objext),$(sifuncs) $(difuncs) $(tifuncs))
 414 endif
 415 endif
 416
 417 # Build LIB2_DIVMOD_FUNCS.
 418 lib2-divmod-o = $(patsubst %,%$(objext),$(LIB2_DIVMOD_FUNCS))
 419 $(lib2-divmod-o): %$(objext): $(gcc_srcdir)/libgcc2.c
 420         $(gcc_compile) -DL$* -c $(gcc_srcdir)/libgcc2.c \
 421           -fexceptions -fnon-call-exceptions $(vis_hide)
 422 libgcc-objects += $(lib2-divmod-o)
 423
 424 ifeq ($(enable_shared),yes)
 425 lib2-divmod-s-o = $(patsubst %,%_s$(objext),$(LIB2_DIVMOD_FUNCS))
 426 $(lib2-divmod-s-o): %_s$(objext): $(gcc_srcdir)/libgcc2.c
 427         $(gcc_s_compile) -DL$* -c $(gcc_srcdir)/libgcc2.c \
 428           -fexceptions -fnon-call-exceptions
 429 libgcc-s-objects += $(lib2-divmod-s-o)
 430 endif
 431
 432 # $(FPBIT) et al. are pathnames relative to the GCC build
 433 # directory; the supporting files are made by the GCC
 434 # Makefile.
 435 # FIXME: Soon we will be able to move this logic into this directory.
 436
 437 ifneq ($(fpbit-in-libgcc),yes)
 438 FPBIT:=$(if $(FPBIT),$(gcc_objdir)/$(FPBIT),)
 439 DPBIT:=$(if $(DPBIT),$(gcc_objdir)/$(DPBIT),)
 440 TPBIT:=$(if $(TPBIT),$(gcc_objdir)/$(TPBIT),)
 441 endif
 442
 443 ifeq ($(TPBIT),)
 444 # _sf_to_tf and _df_to_tf require tp-bit.c being compiled in.
 445 FPBIT_FUNCS := $(filter-out _sf_to_tf,$(FPBIT_FUNCS))
 446 DPBIT_FUNCS := $(filter-out _df_to_tf,$(DPBIT_FUNCS))
 447 endif
 448
 449 # Build FPBIT.
 450 ifneq ($(FPBIT),)
 451 fpbit-o = $(patsubst %,%$(objext),$(FPBIT_FUNCS))
 452 $(fpbit-o): %$(objext): $(FPBIT)
 453         $(gcc_compile) -DFINE_GRAINED_LIBRARIES -DL$* -c $(FPBIT) $(vis_hide)
 454 libgcc-objects += $(fpbit-o)
 455
 456 ifeq ($(enable_shared),yes)
 457 fpbit-s-o = $(patsubst %,%_s$(objext),$(FPBIT_FUNCS))
 458 $(fpbit-s-o): %_s$(objext): $(FPBIT)
 459         $(gcc_s_compile) -DFINE_GRAINED_LIBRARIES -DL$* -c $(FPBIT)
 460 libgcc-s-objects += $(fpbit-s-o)
 461 endif
 462 endif
 463
 464 # Build DPBIT.
 465 ifneq ($(DPBIT),)
 466 dpbit-o = $(patsubst %,%$(objext),$(DPBIT_FUNCS))
 467 $(dpbit-o): %$(objext): $(DPBIT)
 468         $(gcc_compile) -DFINE_GRAINED_LIBRARIES -DL$* -c $(DPBIT) $(vis_hide)
 469 libgcc-objects += $(dpbit-o)
 470
 471 ifeq ($(enable_shared),yes)
 472 dpbit-s-o = $(patsubst %,%_s$(objext),$(DPBIT_FUNCS))
 473 $(dpbit-s-o): %_s$(objext): $(DPBIT)
 474         $(gcc_s_compile) -DFINE_GRAINED_LIBRARIES -DL$* -c $(DPBIT)
 475 libgcc-s-objects += $(dpbit-s-o)
 476 endif
 477 endif
 478
 479 # Build TPBIT.
 480 ifneq ($(TPBIT),)
 481 tpbit-o = $(patsubst %,%$(objext),$(TPBIT_FUNCS))
 482 $(tpbit-o): %$(objext): $(TPBIT)
 483         $(gcc_compile) -DFINE_GRAINED_LIBRARIES -DL$* -c $(TPBIT) $(vis_hide)
 484 libgcc-objects += $(tpbit-o)
 485
 486 ifeq ($(enable_shared),yes)
 487 tpbit-s-o = $(patsubst %,%_s$(objext),$(TPBIT_FUNCS))
 488 $(tpbit-s-o): %_s$(objext): $(TPBIT)
 489         $(gcc_s_compile) -DFINE_GRAINED_LIBRARIES -DL$* -c $(TPBIT)
 490 libgcc-s-objects += $(tpbit-s-o)
 491 endif
 492 endif
 493
 494 # Build decimal floating point support.
 495 ifeq ($(decimal_float),yes)
 496
 497 # If $DFP_ENABLE is set, then we want all data type sizes.
 498 ifneq ($(DFP_ENABLE),)
 499 D32PBIT = 1
 500 D64PBIT = 1
 501 D128PBIT = 1
 502 endif
 503
 504 dfp-filenames =
 505 ifneq ($(D32PBIT)$(D64PBIT)$(D128PBIT),)
 506 ifeq ($(enable_decimal_float),bid)
 507 dfp-filenames += bid_decimal_globals bid_decimal_data \
 508                  bid_binarydecimal bid_convert_data \
 509                  _isinfd32 _isinfd64 _isinfd128 bid64_noncomp \
 510                  bid128_noncomp bid128_fma bid_round bid_from_int \
 511                  bid64_add bid128_add bid64_div bid128_div \
 512                  bid64_mul bid128_mul bid64_compare bid128_compare \
 513                  bid128 bid32_to_bid64 bid32_to_bid128 bid64_to_bid128 \
 514                  bid64_to_int32 bid64_to_int64 \
 515                  bid64_to_uint32 bid64_to_uint64 \
 516                  bid128_to_int32 bid128_to_int64 \
 517                  bid128_to_uint32 bid128_to_uint64
 518 else
 519 dfp-filenames += decContext decNumber decExcept decRound decLibrary decDouble decPacked decQuad decSingle
 520 endif
 521 endif
 522
 523 dfp-objects = $(patsubst %,%$(objext),$(dfp-filenames))
 524 ifeq ($(enable_decimal_float),bid)
 525 $(dfp-objects): %$(objext): $(srcdir)/config/libbid/%.c
 526 else
 527 $(dfp-objects): %$(objext): $(srcdir)/../libdecnumber/%.c
 528 endif
 529         $(gcc_compile) -c $<
 530 libgcc-objects += $(dfp-objects)
 531
 532 decbits-filenames =
 533 ifneq ($(enable_decimal_float),bid)
 534 ifneq ($(D32PBIT),)
 535 decbits-filenames += decimal32
 536 endif
 537
 538 ifneq ($(D64PBIT),)
 539 decbits-filenames += decimal64
 540 endif
 541
 542 ifneq ($(D128PBIT),)
 543 decbits-filenames += decimal128
 544 endif
 545 endif
 546
 547 decbits-objects = $(patsubst %,%$(objext),$(decbits-filenames))
 548 ifeq ($(enable_decimal_float),bid)
 549 $(decbits-objects): %$(objext): $(srcdir)/config/libbid/%.c
 550 else
 551 $(decbits-objects): %$(objext): $(srcdir)/../libdecnumber/$(enable_decimal_float)/%.c
 552 endif
 553         $(gcc_compile) -c $<
 554 libgcc-objects += $(decbits-objects)
 555
 556 # Next build individual support functions.
 557 D32PBIT_FUNCS = _addsub_sd _div_sd _mul_sd _plus_sd _minus_sd \
 558         _eq_sd _ne_sd _lt_sd _gt_sd _le_sd _ge_sd \
 559         _sd_to_si _sd_to_di _sd_to_usi _sd_to_udi \
 560         _si_to_sd _di_to_sd _usi_to_sd _udi_to_sd \
 561         _sd_to_sf _sd_to_df _sd_to_xf _sd_to_tf \
 562         _sf_to_sd _df_to_sd _xf_to_sd _tf_to_sd \
 563         _sd_to_dd _sd_to_td _unord_sd _conv_sd
 564
 565 D64PBIT_FUNCS = _addsub_dd _div_dd _mul_dd _plus_dd _minus_dd \
 566         _eq_dd _ne_dd _lt_dd _gt_dd _le_dd _ge_dd \
 567         _dd_to_si _dd_to_di _dd_to_usi _dd_to_udi \
 568         _si_to_dd _di_to_dd _usi_to_dd _udi_to_dd \
 569         _dd_to_sf _dd_to_df _dd_to_xf _dd_to_tf \
 570         _sf_to_dd _df_to_dd _xf_to_dd _tf_to_dd \
 571         _dd_to_sd _dd_to_td _unord_dd _conv_dd
 572
 573 D128PBIT_FUNCS = _addsub_td _div_td _mul_td _plus_td _minus_td \
 574         _eq_td _ne_td _lt_td _gt_td _le_td _ge_td \
 575         _td_to_si _td_to_di _td_to_usi _td_to_udi \
 576         _si_to_td _di_to_td _usi_to_td _udi_to_td \
 577         _td_to_sf _td_to_df _td_to_xf _td_to_tf \
 578         _sf_to_td _df_to_td _xf_to_td _tf_to_td \
 579         _td_to_sd _td_to_dd _unord_td _conv_td
 580
 581 ifeq ($(enable_decimal_float),bid)
 582 ifneq ($(D32PBIT),)
 583 D32PBIT_FUNCS:=$(filter-out _plus_sd _minus_sd _conv_sd, $(D32PBIT_FUNCS))
 584 endif
 585
 586 ifneq ($(D64PBIT),)
 587 D64PBIT_FUNCS:=$(filter-out _plus_dd _minus_dd _conv_dd, $(D64PBIT_FUNCS))
 588 endif
 589
 590 ifneq ($(D128PBIT),)
 591 D128PBIT_FUNCS:=$(filter-out _plus_td _minus_td _conv_td, $(D128PBIT_FUNCS))
 592 endif
 593 endif
 594
 595 ifneq ($(D32PBIT),)
 596 d32pbit-o = $(patsubst %,%$(objext),$(D32PBIT_FUNCS))
 597 ifeq ($(enable_decimal_float),bid)
 598 $(d32pbit-o): %$(objext): $(srcdir)/config/libbid/%.c
 599 else
 600 $(d32pbit-o): %$(objext): $(srcdir)/dfp-bit.c
 601 endif
 602         $(gcc_compile) -DFINE_GRAINED_LIBRARIES -DL$* -DWIDTH=32 -c $<
 603 libgcc-objects += $(d32pbit-o)
 604 endif
 605
 606 ifneq ($(D64PBIT),)
 607 d64pbit-o = $(patsubst %,%$(objext),$(D64PBIT_FUNCS))
 608 ifeq ($(enable_decimal_float),bid)
 609 $(d64pbit-o): %$(objext): $(srcdir)/config/libbid/%.c
 610 else
 611 $(d64pbit-o): %$(objext): $(srcdir)/dfp-bit.c
 612 endif
 613         $(gcc_compile) -DFINE_GRAINED_LIBRARIES -DL$* -DWIDTH=64 -c $<
 614 libgcc-objects += $(d64pbit-o)
 615 endif
 616
 617 ifneq ($(D128PBIT),)
 618 d128pbit-o = $(patsubst %,%$(objext),$(D128PBIT_FUNCS))
 619 ifeq ($(enable_decimal_float),bid)
 620 $(d128pbit-o): %$(objext): $(srcdir)/config/libbid/%.c
 621 else
 622 $(d128pbit-o): %$(objext): $(srcdir)/dfp-bit.c
 623 endif
 624         $(gcc_compile) -DFINE_GRAINED_LIBRARIES -DL$* -DWIDTH=128 -c $<
 625 libgcc-objects += $(d128pbit-o)
 626 endif
 627
 628 endif
 629
 630 ifeq ($(LIBGCC_SYNC),yes)
 631 libgcc-sync-size-funcs := $(foreach op, add sub or and xor nand, \
 632                             sync_fetch_and_$(op) \
 633                             sync_$(op)_and_fetch) \
 634                           sync_bool_compare_and_swap \
 635                           sync_val_compare_and_swap \
 636                           sync_lock_test_and_set
 637
 638 libgcc-sync-size-funcs := $(foreach prefix, $(libgcc-sync-size-funcs), \
 639                             $(foreach suffix, 1 2 4 8 16, \
 640                               $(prefix)_$(suffix)))
 641
 642 libgcc-sync-size-funcs-o = $(patsubst %,%$(objext),$(libgcc-sync-size-funcs))
 643 $(libgcc-sync-size-funcs-o): %$(objext): $(gcc_srcdir)/config/sync.c
 644         $(gcc_compile) $(LIBGCC_SYNC_CFLAGS) \
 645           -DFN=`echo "$*" | sed 's/_[^_]*$$//'` \
 646           -DSIZE=`echo "$*" | sed 's/.*_//'` \
 647           -c $(gcc_srcdir)/config/sync.c $(vis_hide)
 648 libgcc-objects += $(libgcc-sync-size-funcs-o)
 649
 650 libgcc-sync-funcs := sync_synchronize
 651
 652 libgcc-sync-funcs-o = $(patsubst %,%$(objext),$(libgcc-sync-funcs))
 653 $(libgcc-sync-funcs-o): %$(objext): $(gcc_srcdir)/config/sync.c
 654         $(gcc_compile) $(LIBGCC_SYNC_CFLAGS) \
 655           -DL$* \
 656           -c $(gcc_srcdir)/config/sync.c $(vis_hide)
 657 libgcc-objects += $(libgcc-sync-funcs-o)
 658
 659 ifeq ($(enable_shared),yes)
 660 libgcc-sync-size-funcs-s-o = $(patsubst %,%_s$(objext), \
 661                                $(libgcc-sync-size-funcs))
 662 $(libgcc-sync-size-funcs-s-o): %_s$(objext): $(gcc_srcdir)/config/sync.c
 663         $(gcc_s_compile) $(LIBGCC_SYNC_CFLAGS) \
 664           -DFN=`echo "$*" | sed 's/_[^_]*$$//'` \
 665           -DSIZE=`echo "$*" | sed 's/.*_//'` \
 666           -c $(gcc_srcdir)/config/sync.c
 667 libgcc-s-objects += $(libgcc-sync-size-funcs-s-o)
 668
 669 libgcc-sync-funcs-s-o = $(patsubst %,%_s$(objext),$(libgcc-sync-funcs))
 670 $(libgcc-sync-funcs-s-o): %_s$(objext): $(gcc_srcdir)/config/sync.c
 671         $(gcc_s_compile) $(LIBGCC_SYNC_CFLAGS) \
 672           -DL$* \
 673           -c $(gcc_srcdir)/config/sync.c
 674 libgcc-s-objects += $(libgcc-sync-funcs-s-o)
 675 endif
 676 endif
 677
 678 # Build fixed-point support.
 679 ifeq ($(fixed_point),yes)
 680
 681 # Generate permutations of function name and mode
 682 fixed-labels := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith labels)
 683 fixed-funcs := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith funcs)
 684 fixed-modes := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith modes)
 685
 686 # Generate the rules for each arithmetic function
 687 iter-items := $(fixed-funcs)
 688 iter-labels := $(fixed-labels)
 689 iter-from := $(fixed-modes)
 690 iter-to := $(fixed-modes)
 691 include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/fixed-obj.mk,$(iter-items))
 692
 693 # Add arithmetic functions to list of objects to be built
 694 libgcc-objects += $(patsubst %,%$(objext),$(fixed-funcs))
 695 ifeq ($(enable_shared),yes)
 696 libgcc-s-objects += $(patsubst %,%_s$(objext),$(fixed-funcs))
 697 endif
 698
 699 # Convert from or to fractional
 700 fixed-conv-funcs := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv funcs)
 701 fixed-conv-labels := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv labels)
 702 fixed-conv-from := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv from)
 703 fixed-conv-to :=  $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv to)
 704
 705 # Generate the make rules for each conversion function
 706 iter-items := $(fixed-conv-funcs)
 707 iter-labels := $(fixed-conv-labels)
 708 iter-from := $(fixed-conv-from)
 709 iter-to := $(fixed-conv-to)
 710 include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/fixed-obj.mk,$(iter-items))
 711
 712 # Add conversion functions to list of objects to be built
 713 libgcc-objects += $(patsubst %,%$(objext),$(fixed-conv-funcs))
 714 ifeq ($(enable_shared),yes)
 715 libgcc-s-objects += $(patsubst %,%_s$(objext),$(fixed-conv-funcs))
 716 endif
 717
 718 endif
 719
 720 # Build LIB2ADD and LIB2ADD_ST.
 721 ifneq ($(filter-out %.c %.S %.asm,$(LIB2ADD) $(LIB2ADD_ST)),)
 722 $(error Unsupported files in LIB2ADD or LIB2ADD_ST.)
 723 endif
 724
 725 libgcc-objects += $(addsuffix $(objext),$(basename $(notdir $(LIB2ADD))))
 726 libgcc-objects += $(addsuffix $(objext),$(basename $(notdir $(LIB2ADD_ST))))
 727
 728 c_flags :=
 729 iter-items := $(LIB2ADD) $(LIB2ADD_ST)
 730 include $(iterator)
 731
 732 ifeq ($(enable_shared),yes)
 733 libgcc-s-objects += $(addsuffix _s$(objext),$(basename $(notdir $(LIB2ADD))))
 734 endif
 735
 736 # Build LIB2ADDEH, LIB2ADDEHSTATIC, and LIB2ADDEHSHARED.  If we don't have
 737 # libgcc_eh.a, only LIB2ADDEH matters.  If we do, only LIB2ADDEHSTATIC and
 738 # LIB2ADDEHSHARED matter.  (Usually all three are identical.)
 739
 740 c_flags := -fexceptions
 741
 742 ifeq ($(enable_shared),yes)
 743
 744 libgcc-eh-objects += $(addsuffix $(objext),$(basename $(notdir $(LIB2ADDEHSTATIC))))
 745 libgcc-s-objects += $(addsuffix _s$(objext),$(basename $(notdir $(LIB2ADDEHSHARED))))
 746
 747 iter-items := $(sort $(LIB2ADDEHSTATIC) $(LIB2ADDEHSHARED))
 748 include $(iterator)
 749
 750 else
 751 # Not shared.  LIB2ADDEH are added to libgcc.a.
 752
 753 libgcc-objects += $(addsuffix $(objext),$(basename $(notdir $(LIB2ADDEH))))
 754
 755 iter-items := $(LIB2ADDEH)
 756 include $(iterator)
 757
 758 endif
 759
 760 # Build LIBUNWIND.
 761
 762 c_flags := -fexceptions
 763
 764 libunwind-objects += $(addsuffix $(objext),$(basename $(notdir $(LIBUNWIND))))
 765
 766 ifeq ($(enable_shared),yes)
 767 libunwind-s-objects += $(addsuffix _s$(objext),$(basename $(notdir $(LIBUNWIND))))
 768 endif
 769
 770 iter-items := $(LIBUNWIND)
 771 include $(iterator)
 772
 773 # Build libgcov components.
 774
 775 # Defined in libgcov.c, included only in gcov library
 776 LIBGCOV = _gcov _gcov_merge_add _gcov_merge_single _gcov_merge_delta \
 777     _gcov_fork _gcov_execl _gcov_execlp _gcov_execle \
 778     _gcov_execv _gcov_execvp _gcov_execve \
 779     _gcov_interval_profiler _gcov_pow2_profiler _gcov_one_value_profiler \
 780     _gcov_indirect_call_profiler _gcov_average_profiler _gcov_ior_profiler \
 781     _gcov_merge_ior
 782
 783 libgcov-objects = $(patsubst %,%$(objext),$(LIBGCOV))
 784
 785 $(libgcov-objects): %$(objext): $(srcdir)/libgcov.c
 786         $(gcc_compile) -DL$* -c $(srcdir)/libgcov.c
 787
 788
 789 # Static libraries.
 790 libgcc.a: $(libgcc-objects)
 791 libgcov.a: $(libgcov-objects)
 792 libunwind.a: $(libunwind-objects)
 793 libgcc_eh.a: $(libgcc-eh-objects)
 794
 795 libgcc.a libgcov.a libunwind.a libgcc_eh.a:
 796         -rm -f $@
 797
 798         objects="$(objects)";                                   \
 799         if test -z "$$objects"; then                            \
 800           echo 'int __libgcc_eh_dummy;' > eh_dummy.c;           \
 801           $(gcc_compile_bare) $(vis_hide) -c eh_dummy.c         \
 802              -o eh_dummy$(objext);                              \
 803           objects=eh_dummy$(objext);                            \
 804         fi;                                                     \
 805         $(AR_CREATE_FOR_TARGET) $@ $$objects
 806
 807         $(RANLIB) $@
 808
 809 all: libgcc.a libgcov.a
 810
 811 ifneq ($(LIBUNWIND),)
 812 all: libunwind.a
 813 libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
 814 endif
 815
 816 ifeq ($(enable_shared),yes)
 817 all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
 818 ifneq ($(LIBUNWIND),)
 819 all: libunwind$(SHLIB_EXT)
 820 endif
 821 endif
 822
 823 ifeq ($(enable_shared),yes)
 824
 825 # Map-file generation.
 826 ifneq ($(SHLIB_MKMAP),)
 827 libgcc.map: $(SHLIB_MKMAP) $(SHLIB_MAPFILES) $(libgcc-s-objects)
 828         { $(NM) $(SHLIB_NM_FLAGS) $(libgcc-s-objects); echo %%; \
 829           cat $(SHLIB_MAPFILES) \
 830             | sed -e '/^[       ]*#/d' \
 831                   -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
 832             | $(gcc_compile_bare) -E -xassembler-with-cpp -; \
 833         } | $(AWK) -f $(SHLIB_MKMAP) $(SHLIB_MKMAP_OPTS) > tmp-$@
 834         mv tmp-$@ $@
 835 libgcc_s$(SHLIB_EXT): libgcc.map
 836 mapfile = libgcc.map
 837 endif
 838
 839 libgcc-std.ver: $(srcdir)/libgcc-std.ver.in
 840         sed -e 's/__PFX__/$(LIBGCC_VER_GNU_PREFIX)/g' < $< > $@
 841
 842 libgcc_s$(SHLIB_EXT): $(libgcc-s-objects) $(extra-parts)
 843         # @multilib_flags@ is still needed because this may use
 844         # $(GCC_FOR_TARGET) and $(LIBGCC2_CFLAGS) directly.
 845         # @multilib_dir@ is not really necessary, but sometimes it has
 846         # more uses than just a directory name.
 847         $(mkinstalldirs) $(MULTIDIR)
 848         $(subst @multilib_flags@,$(CFLAGS) -B./,$(subst \
 849                 @multilib_dir@,$(MULTIDIR),$(subst \
 850                 @shlib_objs@,$(objects),$(subst \
 851                 @shlib_base_name@,libgcc_s,$(subst \
 852                 @shlib_map_file@,$(mapfile),$(subst \
 853                 @shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(subst \
 854                 @shlib_slibdir@,$(shlib_slibdir),$(SHLIB_LINK))))))))
 855
 856 libunwind$(SHLIB_EXT): $(libunwind-s-objects) $(extra-parts)
 857         # @multilib_flags@ is still needed because this may use
 858         # $(GCC_FOR_TARGET) and $(LIBGCC2_CFLAGS) directly.
 859         # @multilib_dir@ is not really necessary, but sometimes it has
 860         # more uses than just a directory name.
 861         $(mkinstalldirs) $(MULTIDIR)
 862         $(subst @multilib_flags@,$(CFLAGS) -B./,$(subst \
 863                 @multilib_dir@,$(MULTIDIR),$(subst \
 864                 @shlib_objs@,$(objects),$(subst \
 865                 @shlib_base_name@,libunwind,$(subst \
 866                 @shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIBUNWIND_LINK))))))
 867
 868 endif
 869
 870 # Build the standard GCC startfiles and endfiles.
 871 ALL_CRT_CFLAGS = $(CFLAGS) $(CRTSTUFF_CFLAGS) $(INCLUDES)
 872 crt_compile = $(CC) $(ALL_CRT_CFLAGS) -o $@ $(compile_deps)
 873
 874 ifeq ($(CUSTOM_CRTSTUFF),)
 875 crtbegin$(objext): $(gcc_srcdir)/crtstuff.c
 876         $(crt_compile) $(CRTSTUFF_T_CFLAGS) \
 877           -c $(gcc_srcdir)/crtstuff.c -DCRT_BEGIN
 878
 879 crtend$(objext): $(gcc_srcdir)/crtstuff.c
 880         $(crt_compile) $(CRTSTUFF_T_CFLAGS) \
 881           -c $(gcc_srcdir)/crtstuff.c -DCRT_END
 882
 883 # These are versions of crtbegin and crtend for shared libraries.
 884 crtbeginS$(objext): $(gcc_srcdir)/crtstuff.c
 885         $(crt_compile) $(CRTSTUFF_T_CFLAGS_S) \
 886           -c $(gcc_srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFS_O
 887
 888 crtendS$(objext): $(gcc_srcdir)/crtstuff.c
 889         $(crt_compile) $(CRTSTUFF_T_CFLAGS_S) \
 890           -c $(gcc_srcdir)/crtstuff.c -DCRT_END -DCRTSTUFFS_O
 891
 892 # This is a version of crtbegin for -static links.
 893 crtbeginT.o: $(gcc_srcdir)/crtstuff.c
 894         $(crt_compile) $(CRTSTUFF_T_CFLAGS) \
 895           -c $(gcc_srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFT_O
 896 endif
 897
 898 # Build extra startfiles in the libgcc directory.
 899 .PHONY: libgcc-extra-parts
 900 libgcc-extra-parts: $(EXTRA_PARTS)
 901 ifneq ($(GCC_EXTRA_PARTS),)
 902 ifneq ($(sort $(EXTRA_PARTS)),$(GCC_EXTRA_PARTS))
 903         # If the gcc directory specifies which extra parts to
 904         # build for this target, and the libgcc configuration also
 905         # specifies, make sure they match.  This can be removed
 906         # when the gcc directory no longer holds libgcc configuration;
 907         # it is useful when migrating a target.
 908         @echo "Configuration mismatch!"
 909         @echo "Extra parts from gcc directory: $(GCC_EXTRA_PARTS)"
 910         @echo "Extra parts from libgcc: $(EXTRA_PARTS)"
 911         exit 1
 912 endif
 913 endif
 914
 915         # Early copyback; see "all" above for the rationale.  The
 916         # early copy is necessary so that the gcc -B options find
 917         # the right startup files when linking shared libgcc.
 918         $(mkinstalldirs) $(gcc_objdir)$(MULTISUBDIR)
 919         parts="$(EXTRA_PARTS)";                                 \
 920         for file in $$parts; do                                 \
 921           rm -f $(gcc_objdir)$(MULTISUBDIR)/$$file;             \
 922           $(INSTALL_DATA) $$file $(gcc_objdir)$(MULTISUBDIR)/;  \
 923           case $$file in                                        \
 924             *.a)                                                \
 925               $(RANLIB) $(gcc_objdir)$(MULTISUBDIR)/$$file ;;   \
 926           esac;                                                 \
 927         done
 928
 929 # Build extra startfiles in the gcc directory, for unconverted
 930 # targets.
 931 .PHONY: gcc-extra-parts
 932 gcc-extra-parts:
 933         # Recursively invoke make in the GCC directory to build any
 934         # startfiles (for now).  We must do this just once, passing
 935         # it all the GCC_EXTRA_PARTS as simultaneous goal targets,
 936         # so that rules which cannot execute simultaneously are properly
 937         # serialized.  We indirect through T_TARGET in case any multilib
 938         # directories contain an equals sign, to prevent make from
 939         # interpreting any of the goals as variable assignments.
 940
 941         # We must use cd && make rather than make -C, or else the stage
 942         # number will be embedded in debug information.
 943
 944         T=`$(PWD_COMMAND)`/ \
 945         && cd $(gcc_objdir) \
 946         && $(MAKE) GCC_FOR_TARGET="$(CC)" \
 947           MULTILIB_CFLAGS="$(CFLAGS)" \
 948           T=$$T \
 949           T_TARGET="$(patsubst %,$${T}%,$(GCC_EXTRA_PARTS))" \
 950           T_TARGET
 951
 952         # Early copyback; see "all" above for the rationale.  The
 953         # early copy is necessary so that the gcc -B options find
 954         # the right startup files when linking shared libgcc.
 955         $(mkinstalldirs) $(gcc_objdir)$(MULTISUBDIR)
 956         parts="$(GCC_EXTRA_PARTS)";                             \
 957         for file in $$parts; do                                 \
 958           rm -f $(gcc_objdir)$(MULTISUBDIR)/$$file;             \
 959           $(INSTALL_DATA) $$file $(gcc_objdir)$(MULTISUBDIR)/;  \
 960           case $$file in                                        \
 961             *.a)                                                \
 962               $(RANLIB) $(gcc_objdir)$(MULTISUBDIR)/$$file ;;   \
 963           esac;                                                 \
 964         done
 965
 966 all: $(extra-parts)
 967
 968 # Documentation targets (empty).
 969 .PHONY: info html dvi pdf install-info install-html install-pdf
 970
 971 info:
 972 install-info:
 973 html:
 974 install-html:
 975 dvi:
 976 pdf:
 977 install-pdf:
 978
 979 # Install rules.  These do not depend on "all", so that they can be invoked
 980 # recursively from it.
 981 install-libunwind:
 982         $(mkinstalldirs) $(DESTDIR)$(inst_slibdir)
 983
 984         # NOTE: Maybe this should go into $(inst_libdir), but this
 985         # is where the old mklibgcc.in put it.
 986         $(INSTALL_DATA) libunwind.a $(DESTDIR)$(inst_slibdir)/
 987         chmod 644 $(DESTDIR)$(inst_slibdir)/libunwind.a
 988         $(RANLIB) $(DESTDIR)$(inst_slibdir)/libunwind.a
 989
 990         $(subst @multilib_dir@,$(MULTIDIR),$(subst \
 991                 @shlib_base_name@,libunwind,$(subst \
 992                 @shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIBUNWIND_INSTALL))))
 993
 994 install-shared:
 995         $(mkinstalldirs) $(DESTDIR)$(inst_libdir)
 996
 997         $(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
 998         chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
 999         $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
1000
1001         $(subst @multilib_dir@,$(MULTIDIR),$(subst \
1002                 @shlib_base_name@,libgcc_s,$(subst \
1003                 @shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
1004
1005 install-leaf: $(install-shared) $(install-libunwind)
1006         $(mkinstalldirs) $(DESTDIR)$(inst_libdir)
1007
1008         $(INSTALL_DATA) libgcc.a $(DESTDIR)$(inst_libdir)/
1009         chmod 644 $(DESTDIR)$(inst_libdir)/libgcc.a
1010         $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc.a
1011         $(INSTALL_DATA) libgcov.a $(DESTDIR)$(inst_libdir)/
1012         chmod 644 $(DESTDIR)$(inst_libdir)/libgcov.a
1013         $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcov.a
1014
1015         parts="$(INSTALL_PARTS)";                               \
1016         for file in $$parts; do                                 \
1017           rm -f $(DESTDIR)$(inst_libdir)/$$file;                \
1018           $(INSTALL_DATA) $$file $(DESTDIR)$(inst_libdir)/;     \
1019           case $$file in                                        \
1020             *.a)                                                \
1021               $(RANLIB) $(gcc_objdir)$(MULTISUBDIR)/$$file ;;   \
1022           esac;                                                 \
1023         done
1024
1025 install: install-leaf
1026         @: $(MAKE) ; $(MULTIDO) $(FLAGS_TO_PASS) multi-do DO=install
1027
1028 install-strip: install
1029
1030 .PHONY: install install-shared install-libunwind install-strip
1031
1032 # Don't export variables to the environment, in order to not confuse
1033 # configure.
1034 .NOEXPORT:
1035
1036 include $(srcdir)/empty.mk $(wildcard *.dep)
1037
1038 # TODO QUEUE:
1039 #   Garbage collect in gcc/:
1040 #     $(LIBGCC) settings in t-* are now unused
1041 #
1042 #   Remove use of $(gcc_srcdir).  Source files referenced using $(gcc_srcdir)
1043 #   should move into the libgcc directory.
1044