1# $FreeBSD$ 2 3GCCDIR= ${.CURDIR}/../../../contrib/gcc 4GCCLIB= ${.CURDIR}/../../../contrib/gcclibs 5COMPILERRTDIR= ${.CURDIR}/../../../contrib/compiler-rt 6UNWINDINCDIR= ${.CURDIR}/../../../contrib/llvm/projects/libunwind/include 7UNWINDSRCDIR= ${.CURDIR}/../../../contrib/llvm/projects/libunwind/src 8 9SHLIB_NAME= libgcc_s.so.1 10SHLIBDIR?= /lib 11 12.include <src.opts.mk> 13# 14# libgcc is linked in last and thus cannot depend on ssp symbols coming 15# from earlier libraries. Disable stack protection for this library. 16# 17MK_SSP= no 18 19.include "${.CURDIR}/../../usr.bin/cc/Makefile.tgt" 20 21.if ${TARGET_CPUARCH} == "arm" 22CFLAGS+= -DTARGET_ARM_EABI 23.endif 24 25.PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR} 26 27CFLAGS+= -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \ 28 -DHAVE_GTHR_DEFAULT \ 29 -I${GCCLIB}/include \ 30 -I${GCCDIR}/config -I${GCCDIR} -I. \ 31 -I${.CURDIR}/../../usr.bin/cc/cc_tools 32 33LDFLAGS+= -nodefaultlibs 34LIBADD+= c 35 36OBJS= # 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# 43LIB2FUNCS= _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" || ${TARGET_CPUARCH} != "arm" 52LIB2FUNCS+= _clear_cache 53.endif 54 55# The floating-point conversion routines that involve a single-word integer. 56.for mode in sf df xf 57LIB2FUNCS+= _fixuns${mode}si 58.endfor 59 60# Likewise double-word routines. 61.if ${TARGET_CPUARCH} != "aarch64" && ${TARGET_CPUARCH} != "arm" 62# These are implemented in an ARM specific file but will not be filtered out 63.for mode in sf df xf tf 64LIB2FUNCS+= _fix${mode}di _fixuns${mode}di 65LIB2FUNCS+= _floatdi${mode} _floatundi${mode} 66.endfor 67.endif 68 69LIB2ADD = $(LIB2FUNCS_EXTRA) 70LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA) 71 72# Additional sources to handle exceptions; overridden by targets as needed. 73.if ${MK_LLVM_LIBUNWIND} != "no" 74 75.PATH: ${COMPILERRTDIR}/lib/builtins 76.PATH: ${UNWINDSRCDIR} 77LIB2ADDEH = gcc_personality_v0.c \ 78 int_util.c \ 79 Unwind-EHABI.cpp \ 80 Unwind-sjlj.c \ 81 UnwindLevel1-gcc-ext.c \ 82 UnwindLevel1.c \ 83 UnwindRegistersRestore.S \ 84 UnwindRegistersSave.S \ 85 libunwind.cpp 86 87CFLAGS+= -I${UNWINDINCDIR} -I${.CURDIR} 88.if empty(CXXFLAGS:M-std=*) 89CXXFLAGS+= -std=c++11 90.endif 91CXXFLAGS+= -fno-rtti 92 93.else # MK_LLVM_LIBUNWIND 94 95.if ${TARGET_CPUARCH} == "arm" 96LIB2ADDEH = unwind-arm.c libunwind.S pr-support.c unwind-c.c 97.else 98LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \ 99 unwind-c.c 100.endif 101 102.endif # MK_LLVM_LIBUNWIND 103 104LIB2ADDEHSTATIC = $(LIB2ADDEH) 105LIB2ADDEHSHARED = $(LIB2ADDEH) 106 107# List of extra C and assembler files to add to static and shared libgcc2. 108# Assembler files should have names ending in `.asm'. 109LIB2FUNCS_EXTRA = 110 111# List of extra C and assembler files to add to static libgcc2. 112# Assembler files should have names ending in `.asm'. 113LIB2FUNCS_STATIC_EXTRA = 114 115# Defined in libgcc2.c, included only in the static library. 116# KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not 117# built on any of our platforms. 118LIB2FUNCS_ST = _eprintf __gcc_bcmp 119 120FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \ 121 _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \ 122 _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \ 123 _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf 124 125DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \ 126 _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \ 127 _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \ 128 _df_to_sf _thenan_df _df_to_usi _usi_to_df 129 130TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \ 131 _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \ 132 _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \ 133 _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf 134 135# These might cause a divide overflow trap and so are compiled with 136# unwinder info. 137LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4 138 139#----------------------------------------------------------------------- 140# 141# Platform specific bits. 142# When upgrading GCC, get the following definitions from config/<cpu>/t-* 143# 144.if ${TARGET_CPUARCH} == "arm" 145# from config/arm/t-strongarm-elf 146CFLAGS+= -Dinhibit_libc -fno-inline 147CFLAGS.clang+= -fheinous-gnu-extensions 148 149LIB1ASMSRC = lib1funcs.asm 150LIB1ASMFUNCS = _dvmd_tls _bb_init_func 151# Some compilers generate __aeabi_ functions libgcc_s is missing 152LIBADD+= compiler_rt 153.endif 154 155.if ${TARGET_CPUARCH} == mips 156LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c 157# ABIs other than o32 need this 158.if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel" 159LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c 160LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c 161LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c 162LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c 163.endif 164.endif 165 166.if ${TARGET_ARCH} == "powerpc" 167# from config/rs6000/t-ppccomm 168LIB2FUNCS_EXTRA = tramp.asm 169LIB2FUNCS_STATIC_EXTRA = eabi.asm 170.endif 171 172.if ${TARGET_ARCH} == "powerpc64" 173# from config/rs6000/t-ppccomm 174LIB2FUNCS_EXTRA = tramp.asm 175.endif 176 177.if ${TARGET_CPUARCH} == "sparc64" 178# from config/sparc/t-elf 179LIB1ASMSRC = lb1spc.asm 180LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3 181.endif 182 183#----------------------------------------------------------------------- 184 185# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are 186# defined as optimized assembly code in LIB1ASMFUNCS. 187.if defined(LIB1ASMFUNCS) 188.for sym in ${LIB1ASMFUNCS} 189LIB2FUNCS:= ${LIB2FUNCS:S/${sym}//g} 190LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g} 191.endfor 192.endif 193 194COMMONHDRS= tm.h tconfig.h options.h gthr-default.h 195.if ${MK_LLVM_LIBUNWIND} == no 196COMMONHDRS+= unwind.h 197.endif 198 199#----------------------------------------------------------------------- 200# 201# Helpful shortcuts for compiler invocations. 202# 203HIDE = -fvisibility=hidden -DHIDE_EXPORTS 204CC_T = ${CC} -c ${CFLAGS} ${HIDE} -fPIC 205CC_P = ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC 206CC_S = ${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED 207CXX_T = ${CXX} -c ${CXXFLAGS} ${HIDE} -fPIC 208CXX_P = ${CXX} -c ${CXXFLAGS} ${HIDE} -p -fPIC 209CXX_S = ${CXX} -c ${CXXFLAGS} ${PICFLAG} -DSHARED 210 211#----------------------------------------------------------------------- 212# 213# Functions from libgcc2.c 214# 215STD_CFLAGS = 216DIV_CFLAGS = -fexceptions -fnon-call-exceptions 217 218STD_FUNCS = ${LIB2FUNCS} 219DIV_FUNCS = ${LIB2_DIVMOD_FUNCS} 220 221STD_CFILE = libgcc2.c 222DIV_CFILE = libgcc2.c 223 224OBJ_GRPS = STD DIV 225 226#----------------------------------------------------------------------- 227# 228# Floating point emulation functions 229# 230.if ${TARGET_CPUARCH} == "armNOT_YET" || \ 231 ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64" 232 233FPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES -DFLOAT 234DPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES 235 236FPBIT_CFILE = config/fp-bit.c 237DPBIT_CFILE = config/fp-bit.c 238 239OBJ_GRPS += FPBIT DPBIT 240.endif 241 242#----------------------------------------------------------------------- 243# 244# Generic build rules for object groups defined above 245# 246.for T in ${OBJ_GRPS} 247${T}_OBJS_T = ${${T}_FUNCS:S/$/.o/} 248${T}_OBJS_P = ${${T}_FUNCS:S/$/.po/} 249${T}_OBJS_S = ${${T}_FUNCS:S/$/.So/} 250OBJS += ${${T}_FUNCS:S/$/.o/} 251 252${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS} 253 ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 254${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS} 255 ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 256${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS} 257 ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 258.endfor 259 260#----------------------------------------------------------------------- 261# 262# Extra objects coming from separate files 263# 264.if !empty(LIB2ADD) 265OBJS += ${LIB2ADD:R:S/$/.o/} 266SOBJS += ${LIB2ADD:R:S/$/.So/} 267POBJS += ${LIB2ADD:R:S/$/.po/} 268.endif 269 270#----------------------------------------------------------------------- 271# 272# Objects that should be in static library only. 273# 274SYMS_ST = ${LIB2FUNCS_ST} ${LIB2ADD_ST} 275STAT_OBJS_T = ${SYMS_ST:S/$/.o/} 276STAT_OBJS_P = ${SYMS_ST:S/$/.po/} 277STATICOBJS = ${SYMS_ST:S/$/.o/} 278 279${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS} 280 ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 281${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS} 282 ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 283 284#----------------------------------------------------------------------- 285# 286# Assembler files. 287# 288.if defined(LIB1ASMSRC) 289ASM_T = ${LIB1ASMFUNCS:S/$/.o/} 290ASM_P = ${LIB1ASMFUNCS:S/$/.po/} 291ASM_S = ${LIB1ASMFUNCS:S/$/.So/} 292ASM_V = ${LIB1ASMFUNCS:S/$/.vis/} 293OBJS += ${LIB1ASMFUNCS:S/$/.o/} 294 295${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis 296 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \ 297 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis} 298${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis 299 ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \ 300 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis} 301${ASM_S}: ${LIB1ASMSRC} 302 ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \ 303 -o ${.TARGET} ${.ALLSRC:N*.h} 304${ASM_V}: ${LIB1ASMSRC} 305 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \ 306 -o ${.PREFIX}.vo ${.ALLSRC:N*.h} 307 ( ${NM} -pg ${.PREFIX}.vo | \ 308 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\ 309 ) > ${.TARGET} 310 311CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/} 312.endif 313 314#----------------------------------------------------------------------- 315# 316# Exception handling / unwinding support. 317# 318EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/} 319EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/} 320EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/} 321EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN 322SOBJS += ${EH_OBJS_S} 323 324.for _src in ${LIB2ADDEHSTATIC:M*.c} 325${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS} 326 ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 327${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS} 328 ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 329.endfor 330.for _src in ${LIB2ADDEHSTATIC:M*.cpp} 331${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS} 332 ${CXX_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 333${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS} 334 ${CXX_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 335.endfor 336.for _src in ${LIB2ADDEHSHARED:M*.c} 337${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS} 338 ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 339.endfor 340.for _src in ${LIB2ADDEHSHARED:M*.cpp} 341${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS} 342 ${CXX_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 343.endfor 344 345 346#----------------------------------------------------------------------- 347# 348# Generated headers 349# 350${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile 351 (cd ${.CURDIR}; ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}) 352 353CLEANFILES += ${COMMONHDRS} 354CLEANFILES += cs-*.h option* 355 356#----------------------------------------------------------------------- 357# 358# Build symbol version map 359# 360SHLIB_MKMAP = ${GCCDIR}/mkmap-symver.awk 361SHLIB_MKMAP_OPTS = 362SHLIB_MAPFILES = ${GCCDIR}/libgcc-std.ver 363.if ${TARGET_CPUARCH} == "arm" 364SHLIB_MAPFILES += ${GCCDIR}/config/arm/libgcc-bpabi.ver 365.endif 366VERSION_MAP = libgcc.map 367 368libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/} 369 ( ${NM} -pg ${SOBJS};echo %% ; \ 370 cat ${SHLIB_MAPFILES} \ 371 | sed -e '/^[ ]*#/d' \ 372 -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \ 373 | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \ 374 ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET} 375 376CLEANFILES += libgcc.map 377 378#----------------------------------------------------------------------- 379# 380# Build additional static libgcc_eh[_p].a libraries. 381# 382libgcc_eh.a: ${EH_OBJS_T} 383 @${ECHO} building static gcc_eh library 384 @rm -f ${.TARGET} 385 @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q` 386 ${RANLIB} ${RANLIBFLAGS} ${.TARGET} 387 388_LIBS+= libgcc_eh.a 389 390.if ${MK_PROFILE} != "no" 391libgcc_eh_p.a: ${EH_OBJS_P} 392 @${ECHO} building profiled gcc_eh library 393 @rm -f ${.TARGET} 394 @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q` 395 ${RANLIB} ${RANLIBFLAGS} ${.TARGET} 396 397_LIBS+= libgcc_eh_p.a 398.endif 399 400_libinstall: _lib-eh-install 401 402_lib-eh-install: 403.if ${MK_INSTALLLIB} != "no" 404 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \ 405 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR} 406.endif 407.if ${MK_PROFILE} != "no" 408 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \ 409 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR} 410.endif 411 412CLEANFILES+= libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P} 413 414.include <bsd.lib.mk> 415 416.SUFFIXES: .vis .vo 417