gnu/lib/libgcc/Makefile

   1 # $FreeBSD$
   2
   3 PACKAGE=        clibs
   4 GCCDIR= ${.CURDIR}/../../../contrib/gcc
   5 GCCLIB= ${.CURDIR}/../../../contrib/gcclibs
   6 CCDIR=  ${.CURDIR}/../../usr.bin/cc
   7 COMPILERRTDIR=  ${.CURDIR}/../../../contrib/compiler-rt
   8 UNWINDINCDIR=   ${.CURDIR}/../../../contrib/llvm/projects/libunwind/include
   9 UNWINDSRCDIR=   ${.CURDIR}/../../../contrib/llvm/projects/libunwind/src
  10
  11 SHLIB_NAME=     libgcc_s.so.1
  12 SHLIBDIR?=      /lib
  13
  14 .include <src.opts.mk>
  15 #
  16 # libgcc is linked in last and thus cannot depend on ssp symbols coming
  17 # from earlier libraries. Disable stack protection for this library.
  18 #
  19 MK_SSP= no
  20
  21 .include "${CCDIR}/Makefile.tgt"
  22 .include "${CCDIR}/cc_tools/Makefile.hdrs"
  23
  24 .if ${TARGET_CPUARCH} == "arm"
  25 CFLAGS+=        -DTARGET_ARM_EABI
  26 .endif
  27
  28 .PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR}
  29
  30 CFLAGS+=        -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
  31                 -DHAVE_GTHR_DEFAULT \
  32                 -I${GCCLIB}/include \
  33                 -I${GCCDIR}/config -I${GCCDIR} -I. \
  34                 -I${CCDIR}/cc_tools
  35
  36 LDFLAGS+=       -nodefaultlibs
  37 LIBADD+=        c
  38
  39 SOBJS=          # added to below in various ways depending on TARGET_CPUARCH
  40
  41 #---------------------------------------------------------------------------
  42 #
  43 # Library members defined in libgcc2.c.
  44 # When upgrading GCC, obtain the following list from mklibgcc.in
  45 #
  46 LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
  47         _cmpdi2 _ucmpdi2 \
  48         _enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
  49         _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
  50         _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
  51         _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
  52         _powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
  53         _divxc3 _divtc3 _bswapsi2 _bswapdi2
  54 .if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm"
  55 LIB2FUNCS+= _clear_cache
  56 .endif
  57
  58 # The floating-point conversion routines that involve a single-word integer.
  59 .for mode in sf df xf
  60 LIB2FUNCS+= _fixuns${mode}si
  61 .endfor
  62
  63 # Likewise double-word routines.
  64 .if ${TARGET_CPUARCH} != "aarch64" && ${TARGET_CPUARCH} != "arm" && \
  65     ${TARGET_CPUARCH} != "riscv64"
  66 # These are implemented in an ARM specific file but will not be filtered out.
  67 # RISCVTODO: can't compile
  68 .for mode in sf df xf tf
  69 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
  70 LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
  71 .endfor
  72 .endif
  73
  74 LIB2ADD = $(LIB2FUNCS_EXTRA)
  75 LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
  76
  77 # Additional sources to handle exceptions; overridden by targets as needed.
  78 .if ${MK_LLVM_LIBUNWIND} != "no"
  79
  80 .PATH: ${COMPILERRTDIR}/lib/builtins
  81 .PATH: ${UNWINDSRCDIR}
  82 LIB2ADDEH = gcc_personality_v0.c \
  83         int_util.c \
  84         Unwind-EHABI.cpp \
  85         Unwind-sjlj.c \
  86         UnwindLevel1-gcc-ext.c \
  87         UnwindLevel1.c \
  88         UnwindRegistersRestore.S \
  89         UnwindRegistersSave.S \
  90         libunwind.cpp
  91
  92 CFLAGS+=        -I${UNWINDINCDIR} -I${.CURDIR} -D_LIBUNWIND_IS_NATIVE_ONLY
  93 .if empty(CXXFLAGS:M-std=*)
  94 CXXFLAGS+=      -std=c++11
  95 .endif
  96 CXXFLAGS+=      -fno-rtti
  97 STATIC_CXXFLAGS+= -fvisibility=hidden -fPIC
  98 .if ${MK_DIRDEPS_BUILD} == "yes"
  99 # Avoid dependency on lib/libc++
 100 CFLAGS+=        -I${SRCTOP}/contrib/libc++/include
 101 .endif
 102
 103 .else # MK_LLVM_LIBUNWIND
 104
 105 .if ${TARGET_CPUARCH} == "arm"
 106 LIB2ADDEH =     unwind-arm.c libunwind-arm.S pr-support.c unwind-c.c
 107 .else
 108 LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
 109         unwind-c.c
 110 .endif
 111
 112 .endif # MK_LLVM_LIBUNWIND
 113
 114 LIB2ADDEHSTATIC = $(LIB2ADDEH)
 115 LIB2ADDEHSHARED = $(LIB2ADDEH)
 116
 117 # List of extra C and assembler files to add to static and shared libgcc2.
 118 # Assembler files should have names ending in `.asm'.
 119 LIB2FUNCS_EXTRA =
 120
 121 # List of extra C and assembler files to add to static libgcc2.
 122 # Assembler files should have names ending in `.asm'.
 123 LIB2FUNCS_STATIC_EXTRA =
 124
 125 # Defined in libgcc2.c, included only in the static library.
 126 # KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
 127 # built on any of our platforms.
 128 LIB2FUNCS_ST = _eprintf __gcc_bcmp
 129
 130 FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
 131     _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
 132     _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
 133     _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
 134
 135 DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
 136     _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
 137     _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
 138     _df_to_sf _thenan_df _df_to_usi _usi_to_df
 139
 140 TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
 141     _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
 142     _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
 143     _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
 144
 145 # These might cause a divide overflow trap and so are compiled with
 146 # unwinder info.
 147 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
 148
 149 #-----------------------------------------------------------------------
 150 #
 151 #       Platform specific bits.
 152 #       When upgrading GCC, get the following definitions from config/<cpu>/t-*
 153 #
 154 .if ${TARGET_CPUARCH} == "arm"
 155 #       from config/arm/t-strongarm-elf
 156 CFLAGS+=        -Dinhibit_libc -fno-inline
 157 CFLAGS.clang+=  -fheinous-gnu-extensions
 158
 159 LIB1ASMSRC =    lib1funcs.asm
 160 LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
 161 # Some compilers generate __aeabi_ functions libgcc_s is missing
 162 LIBADD+=        compiler_rt
 163 .endif
 164
 165 .if ${TARGET_CPUARCH} == mips
 166 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
 167 # ABIs other than o32 need this
 168 .if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
 169 LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
 170 LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
 171 LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
 172 LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
 173 .endif
 174 .endif
 175
 176 .if ${TARGET_ARCH} == "powerpc"
 177 #       from config/rs6000/t-ppccomm
 178 LIB2FUNCS_EXTRA = tramp.asm
 179 LIB2FUNCS_STATIC_EXTRA = eabi.asm
 180 .endif
 181
 182 .if ${TARGET_ARCH} == "powerpc64"
 183 #       from config/rs6000/t-ppccomm
 184 LIB2FUNCS_EXTRA = tramp.asm
 185 .endif
 186
 187 .if ${TARGET_CPUARCH} == "sparc64"
 188 #       from config/sparc/t-elf
 189 LIB1ASMSRC =   lb1spc.asm
 190 LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
 191 .endif
 192
 193 #-----------------------------------------------------------------------
 194
 195 # Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
 196 # defined as optimized assembly code in LIB1ASMFUNCS.
 197 .if defined(LIB1ASMFUNCS)
 198 .for sym in ${LIB1ASMFUNCS}
 199 LIB2FUNCS:=     ${LIB2FUNCS:S/${sym}//g}
 200 LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
 201 .endfor
 202 .endif
 203
 204 COMMONHDRS=     tm.h tconfig.h options.h gthr-default.h
 205 .if ${MK_LLVM_LIBUNWIND} != "no"
 206 # unwind.h is a generated file when MK_LLVM_LIBUNWIND == "no", and a stale
 207 # copy may be left behind in OBJDIR when switching, so remove it explicitly.
 208 beforebuild:
 209         @rm -f ${.OBJDIR}/unwind.h
 210 .else
 211 COMMONHDRS+=    unwind.h
 212 .endif
 213
 214 #-----------------------------------------------------------------------
 215 #
 216 # Helpful shortcuts for compiler invocations.
 217 #
 218 HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
 219 CC_T =  ${CC} -c ${CFLAGS} ${HIDE} -fPIC
 220 CC_P =  ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
 221 CC_S =  ${CC} -c ${CFLAGS} ${SHARED_CFLAGS} ${PICFLAG} -DSHARED
 222
 223 #-----------------------------------------------------------------------
 224 #
 225 # Functions from libgcc2.c
 226 #
 227 STD_CFLAGS =
 228 DIV_CFLAGS =    -fexceptions -fnon-call-exceptions
 229
 230 STD_FUNCS =     ${LIB2FUNCS}
 231 DIV_FUNCS =     ${LIB2_DIVMOD_FUNCS}
 232
 233 STD_CFILE =     libgcc2.c
 234 DIV_CFILE =     libgcc2.c
 235
 236 OBJ_GRPS =      STD DIV
 237
 238 #-----------------------------------------------------------------------
 239 #
 240 # Floating point emulation functions
 241 #
 242 .if ${TARGET_CPUARCH} == "armNOT_YET" || \
 243     ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
 244
 245 FPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES -DFLOAT
 246 DPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES
 247
 248 FPBIT_CFILE =   config/fp-bit.c
 249 DPBIT_CFILE =   config/fp-bit.c
 250
 251 OBJ_GRPS +=     FPBIT DPBIT
 252 .endif
 253
 254 #-----------------------------------------------------------------------
 255 #
 256 # Generic build rules for object groups defined above
 257 #
 258 .for T in ${OBJ_GRPS}
 259 ${T}_OBJS_T =   ${${T}_FUNCS:S/$/.o/}
 260 ${T}_OBJS_P =   ${${T}_FUNCS:S/$/.po/}
 261 ${T}_OBJS_S =   ${${T}_FUNCS:S/$/.pico/}
 262 SOBJS +=        ${${T}_FUNCS:S/$/.pico/}
 263
 264 ${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
 265         ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 266 ${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
 267         ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 268 ${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
 269         ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 270 .endfor
 271
 272 #-----------------------------------------------------------------------
 273 #
 274 # Extra objects coming from separate files
 275 #
 276 .if !empty(LIB2ADD)
 277 SOBJS +=        ${LIB2ADD:R:S/$/.pico/}
 278 .endif
 279
 280 #-----------------------------------------------------------------------
 281 #
 282 # Objects that should be in static library only.
 283 #
 284 SYMS_ST =       ${LIB2FUNCS_ST} ${LIB2ADD_ST}
 285 STAT_OBJS_T =   ${SYMS_ST:S/$/.o/}
 286 STAT_OBJS_P =   ${SYMS_ST:S/$/.po/}
 287 STATICOBJS  =   ${SYMS_ST:S/$/.o/}
 288
 289 ${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS}
 290         ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 291 ${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS}
 292         ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 293
 294 #-----------------------------------------------------------------------
 295 #
 296 # Assembler files.
 297 #
 298 .if defined(LIB1ASMSRC)
 299 ASM_T =         ${LIB1ASMFUNCS:S/$/.o/}
 300 ASM_P =         ${LIB1ASMFUNCS:S/$/.po/}
 301 ASM_S =         ${LIB1ASMFUNCS:S/$/.pico/}
 302 ASM_V =         ${LIB1ASMFUNCS:S/$/.vis/}
 303 SOBJS +=        ${LIB1ASMFUNCS:S/$/.pico/}
 304
 305 ${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
 306         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
 307             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
 308 ${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
 309         ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
 310             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
 311 ${ASM_S}: ${LIB1ASMSRC}
 312         ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
 313             -o ${.TARGET} ${.ALLSRC:N*.h}
 314 ${ASM_V}: ${LIB1ASMSRC}
 315         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
 316             -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
 317         ( ${NM} -pg ${.PREFIX}.vo | \
 318                 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
 319         ) > ${.TARGET}
 320
 321 CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
 322 .endif
 323
 324 #-----------------------------------------------------------------------
 325 #
 326 # Exception handling / unwinding support.
 327 #
 328 EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
 329 EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
 330 EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.pico/}
 331 EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
 332 .if ${TARGET_CPUARCH} != "riscv64"
 333 # RISCVTODO: unwinding support
 334 SOBJS    += ${EH_OBJS_S}
 335 .endif
 336
 337 .for _src in ${LIB2ADDEHSTATIC:M*.c}
 338 ${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
 339         ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
 340 ${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
 341         ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
 342 .endfor
 343 .for _src in ${LIB2ADDEHSHARED:M*.c}
 344 ${_src:R:S/$/.pico/}: ${_src} ${COMMONHDRS}
 345         ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
 346 .endfor
 347
 348
 349 CLEANFILES += ${COMMONHDRS}
 350 CLEANFILES += cs-*.h option*
 351
 352 #-----------------------------------------------------------------------
 353 #
 354 # Build symbol version map
 355 #
 356 SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
 357 SHLIB_MKMAP_OPTS =
 358 SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
 359 .if ${TARGET_CPUARCH} == "arm"
 360 SHLIB_MAPFILES  += ${GCCDIR}/config/arm/libgcc-bpabi.ver
 361 .endif
 362 VERSION_MAP      = libgcc.map
 363
 364 libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS}
 365         (  ${NM} -pg ${SOBJS};echo %% ; \
 366           cat ${SHLIB_MAPFILES} \
 367             | sed -e '/^[   ]*#/d' \
 368                   -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
 369             | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
 370         ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
 371
 372 CLEANFILES +=   libgcc.map
 373
 374 #-----------------------------------------------------------------------
 375 #
 376 # Build additional static libgcc_eh[_p].a libraries.
 377 #
 378 libgcc_eh.a:    ${EH_OBJS_T}
 379         @${ECHO} building static gcc_eh library
 380         @rm -f ${.TARGET}
 381         ${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
 382         ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
 383
 384 _LIBS+= libgcc_eh.a
 385
 386 .if ${MK_PROFILE} != "no"
 387 libgcc_eh_p.a:  ${EH_OBJS_P}
 388         @${ECHO} building profiled gcc_eh library
 389         @rm -f ${.TARGET}
 390         ${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
 391         ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
 392
 393 _LIBS+= libgcc_eh_p.a
 394 .endif
 395
 396 _libinstall: _lib-eh-install
 397
 398 _lib-eh-install:
 399 .if ${MK_INSTALLLIB} != "no"
 400         ${INSTALL} ${TAG_ARGS} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
 401                 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
 402 .endif
 403 .if ${MK_PROFILE} != "no"
 404         ${INSTALL} ${TAG_ARGS} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
 405                 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
 406 .endif
 407
 408 CLEANFILES+=    libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
 409
 410 .include <bsd.lib.mk>
 411
 412 .SUFFIXES: .vis .vo