1# $FreeBSD$ 2 3GCCDIR= ${.CURDIR}/../../../contrib/gcc 4GCCLIB= ${.CURDIR}/../../../contrib/gcclibs 5 6SHLIB_NAME= libgcc_s.so.1 7SHLIBDIR?= /lib 8 9.include <bsd.own.mk> 10# 11# libgcc is linked in last and thus cannot depend on ssp symbols coming 12# from earlier libraries. Disable stack protection for this library. 13# 14MK_SSP= no 15 16.include "${.CURDIR}/../../usr.bin/cc/Makefile.tgt" 17 18.if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no" 19CFLAGS+= -DTARGET_ARM_EABI 20.endif 21 22.PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR} 23 24CFLAGS+= -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \ 25 -DHAVE_GTHR_DEFAULT \ 26 -I${GCCLIB}/include \ 27 -I${GCCDIR}/config -I${GCCDIR} -I. \ 28 -I${.CURDIR}/../../usr.bin/cc/cc_tools 29 30LDFLAGS+= -nodefaultlibs 31DPADD+= ${LIBC} 32LDADD+= -lc 33 34OBJS= # added to below in various ways depending on TARGET_CPUARCH 35 36#--------------------------------------------------------------------------- 37# 38# Library members defined in libgcc2.c. 39# When upgrading GCC, obtain the following list from mklibgcc.in 40# 41LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \ 42 _cmpdi2 _ucmpdi2 \ 43 _enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \ 44 _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \ 45 _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \ 46 _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \ 47 _powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \ 48 _divxc3 _divtc3 _bswapsi2 _bswapdi2 49.if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm" 50LIB2FUNCS+= _clear_cache 51.endif 52 53# The floating-point conversion routines that involve a single-word integer. 54.for mode in sf df xf 55LIB2FUNCS+= _fixuns${mode}si 56.endfor 57 58# Likewise double-word routines. 59.if ${TARGET_CPUARCH} != "arm" || ${MK_ARM_EABI} == "no" 60# These are implemented in an ARM specific file but will not be filtered out 61.for mode in sf df xf tf 62LIB2FUNCS+= _fix${mode}di _fixuns${mode}di 63LIB2FUNCS+= _floatdi${mode} _floatundi${mode} 64.endfor 65.endif 66 67LIB2ADD = $(LIB2FUNCS_EXTRA) 68LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA) 69 70# Additional sources to handle exceptions; overridden by targets as needed. 71LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \ 72 unwind-c.c 73LIB2ADDEHSTATIC = $(LIB2ADDEH) 74LIB2ADDEHSHARED = $(LIB2ADDEH) 75 76# List of extra C and assembler files to add to static and shared libgcc2. 77# Assembler files should have names ending in `.asm'. 78LIB2FUNCS_EXTRA = 79 80# List of extra C and assembler files to add to static libgcc2. 81# Assembler files should have names ending in `.asm'. 82LIB2FUNCS_STATIC_EXTRA = 83 84# Defined in libgcc2.c, included only in the static library. 85# KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not 86# built on any of our platforms. 87LIB2FUNCS_ST = _eprintf __gcc_bcmp 88 89FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \ 90 _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \ 91 _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \ 92 _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf 93 94DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \ 95 _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \ 96 _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \ 97 _df_to_sf _thenan_df _df_to_usi _usi_to_df 98 99TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \ 100 _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \ 101 _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \ 102 _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf 103 104# These might cause a divide overflow trap and so are compiled with 105# unwinder info. 106LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4 107 108#----------------------------------------------------------------------- 109# 110# Platform specific bits. 111# When upgrading GCC, get the following definitions from config/<cpu>/t-* 112# 113.if ${TARGET_CPUARCH} == "arm" 114# from config/arm/t-strongarm-elf 115CFLAGS+= -Dinhibit_libc -fno-inline 116CFLAGS.clang+= -fheinous-gnu-extensions 117 118LIB1ASMSRC = lib1funcs.asm 119LIB1ASMFUNCS = _dvmd_tls _bb_init_func 120.if ${MK_ARM_EABI} != "no" 121LIB2ADDEH = unwind-arm.c libunwind.S pr-support.c unwind-c.c 122# Some compilers generate __aeabi_ functions libgcc_s is missing 123DPADD+= ${LIBGCC} 124LDADD+= -lgcc 125.else 126LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c 127.endif 128.endif 129 130.if ${TARGET_CPUARCH} == mips 131LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c 132# ABIs other than o32 need this 133.if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel" 134LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c 135LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c 136LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c 137LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c 138.endif 139.endif 140 141.if ${TARGET_CPUARCH} == "ia64" 142# from config/ia64/t-ia64 143LIB1ASMSRC = lib1funcs.asm 144LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \ 145 __divdi3 __moddi3 __udivdi3 __umoddi3 \ 146 __divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \ 147 __nonlocal_goto __restore_stack_nonlocal __trampoline \ 148 _fixtfdi _fixunstfdi _floatditf 149LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c 150.endif 151 152.if ${TARGET_ARCH} == "powerpc" 153# from config/rs6000/t-ppccomm 154LIB2FUNCS_EXTRA = tramp.asm 155LIB2FUNCS_STATIC_EXTRA = eabi.asm 156.endif 157 158.if ${TARGET_ARCH} == "powerpc64" 159# from config/rs6000/t-ppccomm 160LIB2FUNCS_EXTRA = tramp.asm 161.endif 162 163.if ${TARGET_CPUARCH} == "sparc64" 164# from config/sparc/t-elf 165LIB1ASMSRC = lb1spc.asm 166LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3 167.endif 168 169#----------------------------------------------------------------------- 170 171# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are 172# defined as optimized assembly code in LIB1ASMFUNCS. 173.if defined(LIB1ASMFUNCS) 174.for sym in ${LIB1ASMFUNCS} 175LIB2FUNCS:= ${LIB2FUNCS:S/${sym}//g} 176LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g} 177.endfor 178.endif 179 180COMMONHDRS= tm.h tconfig.h options.h unwind.h gthr-default.h 181 182#----------------------------------------------------------------------- 183# 184# Helpful shortcuts for compiler invocations. 185# 186HIDE = -fvisibility=hidden -DHIDE_EXPORTS 187CC_T = ${CC} -c ${CFLAGS} ${HIDE} -fPIC 188CC_P = ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC 189CC_S = ${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED 190 191#----------------------------------------------------------------------- 192# 193# Functions from libgcc2.c 194# 195STD_CFLAGS = 196DIV_CFLAGS = -fexceptions -fnon-call-exceptions 197 198STD_FUNCS = ${LIB2FUNCS} 199DIV_FUNCS = ${LIB2_DIVMOD_FUNCS} 200 201STD_CFILE = libgcc2.c 202DIV_CFILE = libgcc2.c 203 204OBJ_GRPS = STD DIV 205 206#----------------------------------------------------------------------- 207# 208# Floating point emulation functions 209# 210.if ${TARGET_CPUARCH} == "armNOT_YET" || \ 211 ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64" 212 213FPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES -DFLOAT 214DPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES 215 216FPBIT_CFILE = config/fp-bit.c 217DPBIT_CFILE = config/fp-bit.c 218 219OBJ_GRPS += FPBIT DPBIT 220.endif 221 222#----------------------------------------------------------------------- 223# 224# Generic build rules for object groups defined above 225# 226.for T in ${OBJ_GRPS} 227${T}_OBJS_T = ${${T}_FUNCS:S/$/.o/} 228${T}_OBJS_P = ${${T}_FUNCS:S/$/.po/} 229${T}_OBJS_S = ${${T}_FUNCS:S/$/.So/} 230OBJS += ${${T}_FUNCS:S/$/.o/} 231 232${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS} 233 ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 234${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS} 235 ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 236${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS} 237 ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 238.endfor 239 240#----------------------------------------------------------------------- 241# 242# Extra objects coming from separate files 243# 244.if !empty(LIB2ADD) 245OBJS += ${LIB2ADD:R:S/$/.o/} 246SOBJS += ${LIB2ADD:R:S/$/.So/} 247POBJS += ${LIB2ADD:R:S/$/.po/} 248.endif 249 250#----------------------------------------------------------------------- 251# 252# Objects that should be in static library only. 253# 254SYMS_ST = ${LIB2FUNCS_ST} ${LIB2ADD_ST} 255STAT_OBJS_T = ${SYMS_ST:S/$/.o/} 256STAT_OBJS_P = ${SYMS_ST:S/$/.po/} 257STATICOBJS = ${SYMS_ST:S/$/.o/} 258 259${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS} 260 ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 261${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS} 262 ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c} 263 264#----------------------------------------------------------------------- 265# 266# Assembler files. 267# 268.if defined(LIB1ASMSRC) 269ASM_T = ${LIB1ASMFUNCS:S/$/.o/} 270ASM_P = ${LIB1ASMFUNCS:S/$/.po/} 271ASM_S = ${LIB1ASMFUNCS:S/$/.So/} 272ASM_V = ${LIB1ASMFUNCS:S/$/.vis/} 273OBJS += ${LIB1ASMFUNCS:S/$/.o/} 274 275${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis 276 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \ 277 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis} 278${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis 279 ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \ 280 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis} 281${ASM_S}: ${LIB1ASMSRC} 282 ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \ 283 -o ${.TARGET} ${.ALLSRC:N*.h} 284${ASM_V}: ${LIB1ASMSRC} 285 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \ 286 -o ${.PREFIX}.vo ${.ALLSRC:N*.h} 287 ( ${NM} -pg ${.PREFIX}.vo | \ 288 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\ 289 ) > ${.TARGET} 290 291CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/} 292.endif 293 294#----------------------------------------------------------------------- 295# 296# Exception handling / unwinding support. 297# 298EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/} 299EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/} 300EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/} 301EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN 302SOBJS += ${EH_OBJS_S} 303 304.for _src in ${LIB2ADDEHSTATIC} 305${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS} 306 ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 307${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS} 308 ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 309.endfor 310.for _src in ${LIB2ADDEHSHARED} 311${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS} 312 ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC} 313.endfor 314 315 316#----------------------------------------------------------------------- 317# 318# Generated headers 319# 320${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile 321 ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET} 322 323CLEANFILES += ${COMMONHDRS} 324CLEANFILES += cs-*.h option* 325 326#----------------------------------------------------------------------- 327# 328# Build symbol version map 329# 330SHLIB_MKMAP = ${GCCDIR}/mkmap-symver.awk 331SHLIB_MKMAP_OPTS = 332SHLIB_MAPFILES = ${GCCDIR}/libgcc-std.ver 333.if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no" 334SHLIB_MAPFILES += ${GCCDIR}/config/arm/libgcc-bpabi.ver 335.endif 336VERSION_MAP = libgcc.map 337 338libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/} 339 ( ${NM} -pg ${SOBJS};echo %% ; \ 340 cat ${SHLIB_MAPFILES} \ 341 | sed -e '/^[ ]*#/d' \ 342 -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \ 343 | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \ 344 ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET} 345 346CLEANFILES += libgcc.map 347 348#----------------------------------------------------------------------- 349# 350# Build additional static libgcc_eh[_p].a libraries. 351# 352libgcc_eh.a: ${EH_OBJS_T} 353 @${ECHO} building static gcc_eh library 354 @rm -f ${.TARGET} 355 @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q` 356 ${RANLIB} ${RANLIBFLAGS} ${.TARGET} 357 358all: libgcc_eh.a 359 360.if ${MK_PROFILE} != "no" 361libgcc_eh_p.a: ${EH_OBJS_P} 362 @${ECHO} building profiled gcc_eh library 363 @rm -f ${.TARGET} 364 @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q` 365 ${RANLIB} ${RANLIBFLAGS} ${.TARGET} 366all: libgcc_eh_p.a 367.endif 368 369_libinstall: _lib-eh-install 370 371_lib-eh-install: 372.if ${MK_INSTALLLIB} != "no" 373 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \ 374 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR} 375.endif 376.if ${MK_PROFILE} != "no" 377 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \ 378 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR} 379.endif 380 381CLEANFILES+= libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P} 382 383.include <bsd.lib.mk> 384 385.SUFFIXES: .vis .vo 386