3 GCCDIR= ${.CURDIR}/../../../contrib/gcc
4 GCCLIB= ${.CURDIR}/../../../contrib/gcclibs
6 SHLIB_NAME= libgcc_s.so.1
11 # libgcc is linked in last and thus cannot depend on ssp symbols coming
12 # from earlier libraries. Disable stack protection for this library.
16 .include "${.CURDIR}/../../usr.bin/cc/Makefile.tgt"
18 .if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
19 CFLAGS+= -DTARGET_ARM_EABI
22 .PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR}
24 CFLAGS+= -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
27 -I${GCCDIR}/config -I${GCCDIR} -I. \
28 -I${.CURDIR}/../../usr.bin/cc/cc_tools
30 LDFLAGS+= -nodefaultlibs
34 SOBJS= # added to below in various ways depending on TARGET_CPUARCH
36 #---------------------------------------------------------------------------
38 # Library members defined in libgcc2.c.
39 # When upgrading GCC, obtain the following list from mklibgcc.in
41 LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
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" || ${TARGET_CPUARCH} != "arm"
50 LIB2FUNCS+= _clear_cache
53 # The floating-point conversion routines that involve a single-word integer.
55 LIB2FUNCS+= _fixuns${mode}si
58 # Likewise double-word routines.
59 .if ${TARGET_CPUARCH} != "arm" || ${MK_ARM_EABI} == "no"
60 # These are implemented in an ARM specific file but will not be filtered out
61 .for mode in sf df xf tf
62 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
63 LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
67 LIB2ADD = $(LIB2FUNCS_EXTRA)
68 LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
70 # Additional sources to handle exceptions; overridden by targets as needed.
71 LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
73 LIB2ADDEHSTATIC = $(LIB2ADDEH)
74 LIB2ADDEHSHARED = $(LIB2ADDEH)
76 # List of extra C and assembler files to add to static and shared libgcc2.
77 # Assembler files should have names ending in `.asm'.
80 # List of extra C and assembler files to add to static libgcc2.
81 # Assembler files should have names ending in `.asm'.
82 LIB2FUNCS_STATIC_EXTRA =
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.
87 LIB2FUNCS_ST = _eprintf __gcc_bcmp
89 FPBIT_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
94 DPBIT_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
99 TPBIT_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
104 # These might cause a divide overflow trap and so are compiled with
106 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
108 #-----------------------------------------------------------------------
110 # Platform specific bits.
111 # When upgrading GCC, get the following definitions from config/<cpu>/t-*
113 .if ${TARGET_CPUARCH} == "arm"
114 # from config/arm/t-strongarm-elf
115 CFLAGS+= -Dinhibit_libc -fno-inline
116 CFLAGS.clang+= -fheinous-gnu-extensions
118 LIB1ASMSRC = lib1funcs.asm
119 LIB1ASMFUNCS = _dvmd_tls _bb_init_func
120 .if ${MK_ARM_EABI} != "no"
121 LIB2ADDEH = unwind-arm.c libunwind.S pr-support.c unwind-c.c
122 # Some compilers generate __aeabi_ functions libgcc_s is missing
126 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
130 .if ${TARGET_CPUARCH} == mips
131 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
132 # ABIs other than o32 need this
133 .if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
134 LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
135 LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
136 LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
137 LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
141 .if ${TARGET_CPUARCH} == "ia64"
142 # from config/ia64/t-ia64
143 LIB1ASMSRC = lib1funcs.asm
144 LIB1ASMFUNCS = __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
149 LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
152 .if ${TARGET_ARCH} == "powerpc"
153 # from config/rs6000/t-ppccomm
154 LIB2FUNCS_EXTRA = tramp.asm
155 LIB2FUNCS_STATIC_EXTRA = eabi.asm
158 .if ${TARGET_ARCH} == "powerpc64"
159 # from config/rs6000/t-ppccomm
160 LIB2FUNCS_EXTRA = tramp.asm
163 .if ${TARGET_CPUARCH} == "sparc64"
164 # from config/sparc/t-elf
165 LIB1ASMSRC = lb1spc.asm
166 LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
169 #-----------------------------------------------------------------------
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}
175 LIB2FUNCS:= ${LIB2FUNCS:S/${sym}//g}
176 LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
180 COMMONHDRS= tm.h tconfig.h options.h unwind.h gthr-default.h
182 #-----------------------------------------------------------------------
184 # Helpful shortcuts for compiler invocations.
186 HIDE = -fvisibility=hidden -DHIDE_EXPORTS
187 CC_T = ${CC} -c ${CFLAGS} ${HIDE} -fPIC
188 CC_P = ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
189 CC_S = ${CC} -c ${CFLAGS} ${SHARED_CFLAGS} ${PICFLAG} -DSHARED
191 #-----------------------------------------------------------------------
193 # Functions from libgcc2.c
196 DIV_CFLAGS = -fexceptions -fnon-call-exceptions
198 STD_FUNCS = ${LIB2FUNCS}
199 DIV_FUNCS = ${LIB2_DIVMOD_FUNCS}
201 STD_CFILE = libgcc2.c
202 DIV_CFILE = libgcc2.c
206 #-----------------------------------------------------------------------
208 # Floating point emulation functions
210 .if ${TARGET_CPUARCH} == "armNOT_YET" || \
211 ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
213 FPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES -DFLOAT
214 DPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES
216 FPBIT_CFILE = config/fp-bit.c
217 DPBIT_CFILE = config/fp-bit.c
219 OBJ_GRPS += FPBIT DPBIT
222 #-----------------------------------------------------------------------
224 # Generic build rules for object groups defined above
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/}
230 SOBJS += ${${T}_FUNCS:S/$/.So/}
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}
240 #-----------------------------------------------------------------------
242 # Extra objects coming from separate files
245 SOBJS += ${LIB2ADD:R:S/$/.So/}
248 #-----------------------------------------------------------------------
250 # Objects that should be in static library only.
252 SYMS_ST = ${LIB2FUNCS_ST} ${LIB2ADD_ST}
253 STAT_OBJS_T = ${SYMS_ST:S/$/.o/}
254 STAT_OBJS_P = ${SYMS_ST:S/$/.po/}
255 STATICOBJS = ${SYMS_ST:S/$/.o/}
257 ${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS}
258 ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
259 ${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS}
260 ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
262 #-----------------------------------------------------------------------
266 .if defined(LIB1ASMSRC)
267 ASM_T = ${LIB1ASMFUNCS:S/$/.o/}
268 ASM_P = ${LIB1ASMFUNCS:S/$/.po/}
269 ASM_S = ${LIB1ASMFUNCS:S/$/.So/}
270 ASM_V = ${LIB1ASMFUNCS:S/$/.vis/}
271 SOBJS += ${LIB1ASMFUNCS:S/$/.So/}
273 ${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
274 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
275 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
276 ${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
277 ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
278 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
279 ${ASM_S}: ${LIB1ASMSRC}
280 ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
281 -o ${.TARGET} ${.ALLSRC:N*.h}
282 ${ASM_V}: ${LIB1ASMSRC}
283 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
284 -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
285 ( ${NM} -pg ${.PREFIX}.vo | \
286 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
289 CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
292 #-----------------------------------------------------------------------
294 # Exception handling / unwinding support.
296 EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
297 EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
298 EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
299 EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
300 SOBJS += ${EH_OBJS_S}
302 .for _src in ${LIB2ADDEHSTATIC}
303 ${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
304 ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
305 ${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
306 ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
308 .for _src in ${LIB2ADDEHSHARED}
309 ${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
310 ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
314 #-----------------------------------------------------------------------
318 ${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
319 ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
321 CLEANFILES += ${COMMONHDRS}
322 CLEANFILES += cs-*.h option*
324 #-----------------------------------------------------------------------
326 # Build symbol version map
328 SHLIB_MKMAP = ${GCCDIR}/mkmap-symver.awk
330 SHLIB_MAPFILES = ${GCCDIR}/libgcc-std.ver
331 .if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
332 SHLIB_MAPFILES += ${GCCDIR}/config/arm/libgcc-bpabi.ver
334 VERSION_MAP = libgcc.map
336 libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS}
337 ( ${NM} -pg ${SOBJS};echo %% ; \
338 cat ${SHLIB_MAPFILES} \
339 | sed -e '/^[ ]*#/d' \
340 -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
341 | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
342 ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
344 CLEANFILES += libgcc.map
346 #-----------------------------------------------------------------------
348 # Build additional static libgcc_eh[_p].a libraries.
350 libgcc_eh.a: ${EH_OBJS_T}
351 @${ECHO} building static gcc_eh library
353 ${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
354 ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
358 .if ${MK_PROFILE} != "no"
359 libgcc_eh_p.a: ${EH_OBJS_P}
360 @${ECHO} building profiled gcc_eh library
362 ${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
363 ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
367 _libinstall: _lib-eh-install
370 .if ${MK_INSTALLLIB} != "no"
371 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
372 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
374 .if ${MK_PROFILE} != "no"
375 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
376 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
379 CLEANFILES+= libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
381 .include <bsd.lib.mk>