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