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 .if ${TARGET_CPUARCH} == "mips"
26 .PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR}
28 CFLAGS+= -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
31 -I${GCCDIR}/config -I${GCCDIR} -I. \
32 -I${.CURDIR}/../../usr.bin/cc/cc_tools
34 LDFLAGS+= -nodefaultlibs
37 OBJS= # added to below in various ways depending on TARGET_CPUARCH
39 #---------------------------------------------------------------------------
41 # When upgrading GCC, get the following defintions straight from Makefile.in
43 # Library members defined in libgcc2.c.
44 LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
46 _enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
47 _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
48 _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
49 _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
50 _powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
52 .if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm"
53 LIB2FUNCS+= _clear_cache
56 # The floating-point conversion routines that involve a single-word integer.
58 LIB2FUNCS+= _fixuns${mode}si
61 # Likewise double-word routines.
62 .if ${TARGET_CPUARCH} != "arm" || ${MK_ARM_EABI} == "no"
63 # These are implemented in an ARM specific file but will not be filtered out
64 .for mode in sf df xf tf
65 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
66 LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
70 LIB2ADD = $(LIB2FUNCS_EXTRA)
71 LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
73 # Additional sources to handle exceptions; overridden by targets as needed.
74 LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
76 LIB2ADDEHSTATIC = $(LIB2ADDEH)
77 LIB2ADDEHSHARED = $(LIB2ADDEH)
79 # List of extra C and assembler files to add to static and shared libgcc2.
80 # Assembler files should have names ending in `.asm'.
83 # List of extra C and assembler files to add to static libgcc2.
84 # Assembler files should have names ending in `.asm'.
85 LIB2FUNCS_STATIC_EXTRA =
87 # Defined in libgcc2.c, included only in the static library.
88 # KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
89 # built on any of our platforms.
90 LIB2FUNCS_ST = _eprintf __gcc_bcmp
92 FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
93 _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
94 _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
95 _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
97 DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
98 _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
99 _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
100 _df_to_sf _thenan_df _df_to_usi _usi_to_df
102 TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
103 _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
104 _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
105 _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
107 # These might cause a divide overflow trap and so are compiled with
109 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
111 #-----------------------------------------------------------------------
113 # Platform specific bits.
114 # When upgrading GCC, get the following definitions from config/<cpu>/t-*
116 .if ${TARGET_CPUARCH} == "arm"
117 # from config/arm/t-strongarm-elf
118 CFLAGS+= -Dinhibit_libc -fno-inline
119 .if ${COMPILER_TYPE} == "clang"
120 CFLAGS+= -fheinous-gnu-extensions
123 LIB1ASMSRC = lib1funcs.asm
124 LIB1ASMFUNCS = _dvmd_tls _bb_init_func
125 .if ${MK_ARM_EABI} != "no"
126 LIB2ADDEH = unwind-arm.c libunwind.S pr-support.c unwind-c.c
127 # Some compilers generate __aeabi_ functions libgcc_s is missing
131 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
135 .if ${TARGET_CPUARCH} == mips
136 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
137 # ABIs other than o32 need this
138 .if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
139 LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
140 LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
141 LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
142 LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
146 .if ${TARGET_CPUARCH} == "ia64"
147 # from config/ia64/t-ia64
148 LIB1ASMSRC = lib1funcs.asm
149 LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
150 __divdi3 __moddi3 __udivdi3 __umoddi3 \
151 __divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
152 __nonlocal_goto __restore_stack_nonlocal __trampoline \
153 _fixtfdi _fixunstfdi _floatditf
154 LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
157 .if ${TARGET_ARCH} == "powerpc"
158 # from config/rs6000/t-ppccomm
159 LIB2FUNCS_EXTRA = tramp.asm
160 LIB2FUNCS_STATIC_EXTRA = eabi.asm
163 .if ${TARGET_ARCH} == "powerpc64"
164 # from config/rs6000/t-ppccomm
165 LIB2FUNCS_EXTRA = tramp.asm
168 .if ${TARGET_CPUARCH} == "sparc64"
169 # from config/sparc/t-elf
170 LIB1ASMSRC = lb1spc.asm
171 LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
174 #-----------------------------------------------------------------------
176 # Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
177 # defined as optimized assembly code in LIB1ASMFUNCS.
178 .if defined(LIB1ASMFUNCS)
179 .for sym in ${LIB1ASMFUNCS}
180 LIB2FUNCS:= ${LIB2FUNCS:S/${sym}//g}
181 LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
185 COMMONHDRS= tm.h tconfig.h options.h unwind.h gthr-default.h
187 #-----------------------------------------------------------------------
189 # Helpful shortcuts for compiler invocations.
191 HIDE = -fvisibility=hidden -DHIDE_EXPORTS
192 CC_T = ${CC} -c ${CFLAGS} ${HIDE} -fPIC
193 CC_P = ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
194 CC_S = ${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
196 #-----------------------------------------------------------------------
198 # Functions from libgcc2.c
201 DIV_CFLAGS = -fexceptions -fnon-call-exceptions
203 STD_FUNCS = ${LIB2FUNCS}
204 DIV_FUNCS = ${LIB2_DIVMOD_FUNCS}
206 STD_CFILE = libgcc2.c
207 DIV_CFILE = libgcc2.c
211 #-----------------------------------------------------------------------
213 # Floating point emulation functions
215 .if ${TARGET_CPUARCH} == "armNOT_YET" || \
216 ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
218 FPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES -DFLOAT
219 DPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES
221 FPBIT_CFILE = config/fp-bit.c
222 DPBIT_CFILE = config/fp-bit.c
224 OBJ_GRPS += FPBIT DPBIT
227 #-----------------------------------------------------------------------
229 # Generic build rules for object groups defined above
231 .for T in ${OBJ_GRPS}
232 ${T}_OBJS_T = ${${T}_FUNCS:S/$/.o/}
233 ${T}_OBJS_P = ${${T}_FUNCS:S/$/.po/}
234 ${T}_OBJS_S = ${${T}_FUNCS:S/$/.So/}
235 OBJS += ${${T}_FUNCS:S/$/.o/}
237 ${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
238 ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
239 ${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
240 ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
241 ${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
242 ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
245 #-----------------------------------------------------------------------
247 # Extra objects coming from separate files
250 OBJS += ${LIB2ADD:R:S/$/.o/}
251 SOBJS += ${LIB2ADD:R:S/$/.So/}
252 POBJS += ${LIB2ADD:R:S/$/.po/}
255 #-----------------------------------------------------------------------
257 # Objects that should be in static library only.
259 SYMS_ST = ${LIB2FUNCS_ST} ${LIB2ADD_ST}
260 STAT_OBJS_T = ${SYMS_ST:S/$/.o/}
261 STAT_OBJS_P = ${SYMS_ST:S/$/.po/}
262 STATICOBJS = ${SYMS_ST:S/$/.o/}
264 ${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS}
265 ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
266 ${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS}
267 ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
269 #-----------------------------------------------------------------------
273 .if defined(LIB1ASMSRC)
274 ASM_T = ${LIB1ASMFUNCS:S/$/.o/}
275 ASM_P = ${LIB1ASMFUNCS:S/$/.po/}
276 ASM_S = ${LIB1ASMFUNCS:S/$/.So/}
277 ASM_V = ${LIB1ASMFUNCS:S/$/.vis/}
278 OBJS += ${LIB1ASMFUNCS:S/$/.o/}
280 ${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
281 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
282 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
283 ${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
284 ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
285 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
286 ${ASM_S}: ${LIB1ASMSRC}
287 ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
288 -o ${.TARGET} ${.ALLSRC:N*.h}
289 ${ASM_V}: ${LIB1ASMSRC}
290 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
291 -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
292 ( ${NM} -pg ${.PREFIX}.vo | \
293 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
296 CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
299 #-----------------------------------------------------------------------
301 # Exception handling / unwinding support.
303 EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
304 EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
305 EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
306 EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
307 SOBJS += ${EH_OBJS_S}
309 .for _src in ${LIB2ADDEHSTATIC}
310 ${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
311 ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
312 ${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
313 ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
315 .for _src in ${LIB2ADDEHSHARED}
316 ${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
317 ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
321 #-----------------------------------------------------------------------
325 ${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
326 ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
328 CLEANFILES += ${COMMONHDRS}
329 CLEANFILES += cs-*.h option*
331 #-----------------------------------------------------------------------
333 # Build symbol version map
335 SHLIB_MKMAP = ${GCCDIR}/mkmap-symver.awk
337 SHLIB_MAPFILES = ${GCCDIR}/libgcc-std.ver
338 .if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
339 SHLIB_MAPFILES += ${GCCDIR}/config/arm/libgcc-bpabi.ver
341 VERSION_MAP = libgcc.map
343 libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
344 ( ${NM} -pg ${SOBJS};echo %% ; \
345 cat ${SHLIB_MAPFILES} \
346 | sed -e '/^[ ]*#/d' \
347 -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
348 | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
349 ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
351 CLEANFILES += libgcc.map
353 #-----------------------------------------------------------------------
355 # Build additional static libgcc_eh[_p].a libraries.
357 libgcc_eh.a: ${EH_OBJS_T}
358 @${ECHO} building static gcc_eh library
360 @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
365 .if ${MK_PROFILE} != "no"
366 libgcc_eh_p.a: ${EH_OBJS_P}
367 @${ECHO} building profiled gcc_eh library
369 @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
374 _libinstall: _lib-eh-install
377 .if ${MK_INSTALLLIB} != "no"
378 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
379 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
381 .if ${MK_PROFILE} != "no"
382 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
383 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
386 CLEANFILES+= libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
388 .include <bsd.lib.mk>