gnu/lib/libgcc/Makefile

   1 # $FreeBSD$
   2
   3 GCCDIR= ${.CURDIR}/../../../contrib/gcc
   4 GCCLIB= ${.CURDIR}/../../../contrib/gcclibs
   5 COMPILERRTDIR=  ${.CURDIR}/../../../contrib/compiler-rt
   6 UNWINDINCDIR=   ${.CURDIR}/../../../contrib/llvm/projects/libunwind/include
   7 UNWINDSRCDIR=   ${.CURDIR}/../../../contrib/llvm/projects/libunwind/src
   8
   9 SHLIB_NAME=     libgcc_s.so.1
  10 SHLIBDIR?=      /lib
  11
  12 .include <src.opts.mk>
  13 #
  14 # libgcc is linked in last and thus cannot depend on ssp symbols coming
  15 # from earlier libraries. Disable stack protection for this library.
  16 #
  17 MK_SSP= no
  18
  19 .include "${.CURDIR}/../../usr.bin/cc/Makefile.tgt"
  20
  21 .if ${TARGET_CPUARCH} == "arm"
  22 CFLAGS+=        -DTARGET_ARM_EABI
  23 .endif
  24
  25 .PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR}
  26
  27 CFLAGS+=        -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
  28                 -DHAVE_GTHR_DEFAULT \
  29                 -I${GCCLIB}/include \
  30                 -I${GCCDIR}/config -I${GCCDIR} -I. \
  31                 -I${.CURDIR}/../../usr.bin/cc/cc_tools
  32
  33 LDFLAGS+=       -nodefaultlibs
  34 LIBADD+=        c
  35
  36 OBJS=           # added to below in various ways depending on TARGET_CPUARCH
  37
  38 #---------------------------------------------------------------------------
  39 #
  40 # Library members defined in libgcc2.c.
  41 # When upgrading GCC, obtain the following list from mklibgcc.in
  42 #
  43 LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
  44         _cmpdi2 _ucmpdi2 \
  45         _enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
  46         _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
  47         _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
  48         _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
  49         _powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
  50         _divxc3 _divtc3 _bswapsi2 _bswapdi2
  51 .if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm"
  52 LIB2FUNCS+= _clear_cache
  53 .endif
  54
  55 # The floating-point conversion routines that involve a single-word integer.
  56 .for mode in sf df xf
  57 LIB2FUNCS+= _fixuns${mode}si
  58 .endfor
  59
  60 # Likewise double-word routines.
  61 .if ${TARGET_CPUARCH} != "aarch64" && ${TARGET_CPUARCH} != "arm" && \
  62     ${TARGET_CPUARCH} != "riscv64"
  63 # These are implemented in an ARM specific file but will not be filtered out.
  64 # RISCVTODO: can't compile
  65 .for mode in sf df xf tf
  66 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
  67 LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
  68 .endfor
  69 .endif
  70
  71 LIB2ADD = $(LIB2FUNCS_EXTRA)
  72 LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
  73
  74 # Additional sources to handle exceptions; overridden by targets as needed.
  75 .if ${MK_LLVM_LIBUNWIND} != "no"
  76
  77 .PATH: ${COMPILERRTDIR}/lib/builtins
  78 .PATH: ${UNWINDSRCDIR}
  79 LIB2ADDEH = gcc_personality_v0.c \
  80         int_util.c \
  81         Unwind-EHABI.cpp \
  82         Unwind-sjlj.c \
  83         UnwindLevel1-gcc-ext.c \
  84         UnwindLevel1.c \
  85         UnwindRegistersRestore.S \
  86         UnwindRegistersSave.S \
  87         libunwind.cpp
  88
  89 CFLAGS+=        -I${UNWINDINCDIR} -I${.CURDIR}
  90 .if empty(CXXFLAGS:M-std=*)
  91 CXXFLAGS+=      -std=c++11
  92 .endif
  93 CXXFLAGS+=      -fno-rtti
  94 STATIC_CXXFLAGS+= -fvisibility=hidden -fPIC
  95
  96 .else # MK_LLVM_LIBUNWIND
  97
  98 .if ${TARGET_CPUARCH} == "arm"
  99 LIB2ADDEH =     unwind-arm.c libunwind.S pr-support.c unwind-c.c
 100 .else
 101 LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
 102         unwind-c.c
 103 .endif
 104
 105 .endif # MK_LLVM_LIBUNWIND
 106
 107 LIB2ADDEHSTATIC = $(LIB2ADDEH)
 108 LIB2ADDEHSHARED = $(LIB2ADDEH)
 109
 110 # List of extra C and assembler files to add to static and shared libgcc2.
 111 # Assembler files should have names ending in `.asm'.
 112 LIB2FUNCS_EXTRA =
 113
 114 # List of extra C and assembler files to add to static libgcc2.
 115 # Assembler files should have names ending in `.asm'.
 116 LIB2FUNCS_STATIC_EXTRA =
 117
 118 # Defined in libgcc2.c, included only in the static library.
 119 # KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
 120 # built on any of our platforms.
 121 LIB2FUNCS_ST = _eprintf __gcc_bcmp
 122
 123 FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
 124     _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
 125     _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
 126     _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
 127
 128 DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
 129     _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
 130     _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
 131     _df_to_sf _thenan_df _df_to_usi _usi_to_df
 132
 133 TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
 134     _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
 135     _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
 136     _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
 137
 138 # These might cause a divide overflow trap and so are compiled with
 139 # unwinder info.
 140 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
 141
 142 #-----------------------------------------------------------------------
 143 #
 144 #       Platform specific bits.
 145 #       When upgrading GCC, get the following definitions from config/<cpu>/t-*
 146 #
 147 .if ${TARGET_CPUARCH} == "arm"
 148 #       from config/arm/t-strongarm-elf
 149 CFLAGS+=        -Dinhibit_libc -fno-inline
 150 CFLAGS.clang+=  -fheinous-gnu-extensions
 151
 152 LIB1ASMSRC =    lib1funcs.asm
 153 LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
 154 # Some compilers generate __aeabi_ functions libgcc_s is missing
 155 LIBADD+=        compiler_rt
 156 .endif
 157
 158 .if ${TARGET_CPUARCH} == mips
 159 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
 160 # ABIs other than o32 need this
 161 .if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
 162 LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
 163 LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
 164 LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
 165 LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
 166 .endif
 167 .endif
 168
 169 .if ${TARGET_ARCH} == "powerpc"
 170 #       from config/rs6000/t-ppccomm
 171 LIB2FUNCS_EXTRA = tramp.asm
 172 LIB2FUNCS_STATIC_EXTRA = eabi.asm
 173 .endif
 174
 175 .if ${TARGET_ARCH} == "powerpc64"
 176 #       from config/rs6000/t-ppccomm
 177 LIB2FUNCS_EXTRA = tramp.asm
 178 .endif
 179
 180 .if ${TARGET_CPUARCH} == "sparc64"
 181 #       from config/sparc/t-elf
 182 LIB1ASMSRC =   lb1spc.asm
 183 LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
 184 .endif
 185
 186 #-----------------------------------------------------------------------
 187
 188 # Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
 189 # defined as optimized assembly code in LIB1ASMFUNCS.
 190 .if defined(LIB1ASMFUNCS)
 191 .for sym in ${LIB1ASMFUNCS}
 192 LIB2FUNCS:=     ${LIB2FUNCS:S/${sym}//g}
 193 LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
 194 .endfor
 195 .endif
 196
 197 COMMONHDRS=     tm.h tconfig.h options.h gthr-default.h
 198 .if ${MK_LLVM_LIBUNWIND} != "no"
 199 # unwind.h is a generated file when MK_LLVM_LIBUNWIND == "no", and a stale
 200 # copy may be left behind in OBJDIR when switching, so remove it explicitly.
 201 beforebuild:
 202         @rm -f ${.OBJDIR}/unwind.h
 203 .else
 204 COMMONHDRS+=    unwind.h
 205 .endif
 206
 207 #-----------------------------------------------------------------------
 208 #
 209 # Helpful shortcuts for compiler invocations.
 210 #
 211 HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
 212 CC_T =  ${CC} -c ${CFLAGS} ${HIDE} -fPIC
 213 CC_P =  ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
 214 CC_S =  ${CC} -c ${CFLAGS} ${SHARED_CFLAGS} ${PICFLAG} -DSHARED
 215
 216 #-----------------------------------------------------------------------
 217 #
 218 # Functions from libgcc2.c
 219 #
 220 STD_CFLAGS =
 221 DIV_CFLAGS =    -fexceptions -fnon-call-exceptions
 222
 223 STD_FUNCS =     ${LIB2FUNCS}
 224 DIV_FUNCS =     ${LIB2_DIVMOD_FUNCS}
 225
 226 STD_CFILE =     libgcc2.c
 227 DIV_CFILE =     libgcc2.c
 228
 229 OBJ_GRPS =      STD DIV
 230
 231 #-----------------------------------------------------------------------
 232 #
 233 # Floating point emulation functions
 234 #
 235 .if ${TARGET_CPUARCH} == "armNOT_YET" || \
 236     ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
 237
 238 FPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES -DFLOAT
 239 DPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES
 240
 241 FPBIT_CFILE =   config/fp-bit.c
 242 DPBIT_CFILE =   config/fp-bit.c
 243
 244 OBJ_GRPS +=     FPBIT DPBIT
 245 .endif
 246
 247 #-----------------------------------------------------------------------
 248 #
 249 # Generic build rules for object groups defined above
 250 #
 251 .for T in ${OBJ_GRPS}
 252 ${T}_OBJS_T =   ${${T}_FUNCS:S/$/.o/}
 253 ${T}_OBJS_P =   ${${T}_FUNCS:S/$/.po/}
 254 ${T}_OBJS_S =   ${${T}_FUNCS:S/$/.So/}
 255 OBJS +=         ${${T}_FUNCS:S/$/.o/}
 256
 257 ${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
 258         ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 259 ${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
 260         ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 261 ${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
 262         ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 263 .endfor
 264
 265 #-----------------------------------------------------------------------
 266 #
 267 # Extra objects coming from separate files
 268 #
 269 .if !empty(LIB2ADD)
 270 OBJS  +=        ${LIB2ADD:R:S/$/.o/}
 271 SOBJS +=        ${LIB2ADD:R:S/$/.So/}
 272 POBJS +=        ${LIB2ADD:R:S/$/.po/}
 273 .endif
 274
 275 #-----------------------------------------------------------------------
 276 #
 277 # Objects that should be in static library only.
 278 #
 279 SYMS_ST =       ${LIB2FUNCS_ST} ${LIB2ADD_ST}
 280 STAT_OBJS_T =   ${SYMS_ST:S/$/.o/}
 281 STAT_OBJS_P =   ${SYMS_ST:S/$/.po/}
 282 STATICOBJS  =   ${SYMS_ST:S/$/.o/}
 283
 284 ${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS}
 285         ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 286 ${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS}
 287         ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 288
 289 #-----------------------------------------------------------------------
 290 #
 291 # Assembler files.
 292 #
 293 .if defined(LIB1ASMSRC)
 294 ASM_T =         ${LIB1ASMFUNCS:S/$/.o/}
 295 ASM_P =         ${LIB1ASMFUNCS:S/$/.po/}
 296 ASM_S =         ${LIB1ASMFUNCS:S/$/.So/}
 297 ASM_V =         ${LIB1ASMFUNCS:S/$/.vis/}
 298 OBJS +=         ${LIB1ASMFUNCS:S/$/.o/}
 299
 300 ${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
 301         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
 302             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
 303 ${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
 304         ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
 305             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
 306 ${ASM_S}: ${LIB1ASMSRC}
 307         ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
 308             -o ${.TARGET} ${.ALLSRC:N*.h}
 309 ${ASM_V}: ${LIB1ASMSRC}
 310         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
 311             -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
 312         ( ${NM} -pg ${.PREFIX}.vo | \
 313                 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
 314         ) > ${.TARGET}
 315
 316 CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
 317 .endif
 318
 319 #-----------------------------------------------------------------------
 320 #
 321 # Exception handling / unwinding support.
 322 #
 323 EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
 324 EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
 325 EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
 326 EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
 327 .if ${TARGET_CPUARCH} != "riscv64"
 328 # RISCVTODO: unwinding support
 329 SOBJS    += ${EH_OBJS_S}
 330 .endif
 331
 332 .for _src in ${LIB2ADDEHSTATIC:M*.c}
 333 ${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
 334         ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
 335 ${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
 336         ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
 337 .endfor
 338 .for _src in ${LIB2ADDEHSHARED:M*.c}
 339 ${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
 340         ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
 341 .endfor
 342
 343
 344 #-----------------------------------------------------------------------
 345 #
 346 # Generated headers
 347 #
 348 ${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
 349         (cd ${.CURDIR}; ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET})
 350
 351 CLEANFILES += ${COMMONHDRS}
 352 CLEANFILES += cs-*.h option*
 353
 354 #-----------------------------------------------------------------------
 355 #
 356 # Build symbol version map
 357 #
 358 SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
 359 SHLIB_MKMAP_OPTS =
 360 SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
 361 .if ${TARGET_CPUARCH} == "arm"
 362 SHLIB_MAPFILES  += ${GCCDIR}/config/arm/libgcc-bpabi.ver
 363 .endif
 364 VERSION_MAP      = libgcc.map
 365
 366 libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
 367         (  ${NM} -pg ${SOBJS};echo %% ; \
 368           cat ${SHLIB_MAPFILES} \
 369             | sed -e '/^[   ]*#/d' \
 370                   -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
 371             | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
 372         ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
 373
 374 CLEANFILES +=   libgcc.map
 375
 376 #-----------------------------------------------------------------------
 377 #
 378 # Build additional static libgcc_eh[_p].a libraries.
 379 #
 380 libgcc_eh.a:    ${EH_OBJS_T}
 381         @${ECHO} building static gcc_eh library
 382         @rm -f ${.TARGET}
 383         ${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
 384         ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
 385
 386 _LIBS+= libgcc_eh.a
 387
 388 .if ${MK_PROFILE} != "no"
 389 libgcc_eh_p.a:  ${EH_OBJS_P}
 390         @${ECHO} building profiled gcc_eh library
 391         @rm -f ${.TARGET}
 392         ${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
 393         ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
 394
 395 _LIBS+= libgcc_eh_p.a
 396 .endif
 397
 398 _libinstall: _lib-eh-install
 399
 400 _lib-eh-install:
 401 .if ${MK_INSTALLLIB} != "no"
 402         ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
 403                 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
 404 .endif
 405 .if ${MK_PROFILE} != "no"
 406         ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
 407                 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
 408 .endif
 409
 410 CLEANFILES+=    libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
 411
 412 .include <bsd.lib.mk>
 413
 414 .SUFFIXES: .vis .vo