2 GCCDIR= ${.CURDIR}/../../../contrib/gcc
3 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 .PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR}
20 CFLAGS+= -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
23 -I${GCCDIR}/config -I${GCCDIR} -I. \
24 -I${.CURDIR}/../../usr.bin/cc/cc_tools
26 LDFLAGS+= -nodefaultlibs
29 OBJS= # added to below in various ways depending on TARGET_ARCH
31 #---------------------------------------------------------------------------
33 # When upgrading GCC, get the following defintions straight from Makefile.in
35 # Library members defined in libgcc2.c.
36 LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
37 _cmpdi2 _ucmpdi2 _clear_cache \
38 _enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
39 _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
40 _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
41 _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
42 _powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
45 # The floating-point conversion routines that involve a single-word integer.
47 LIB2FUNCS+= _fixuns${mode}si
50 # Likewise double-word routines.
51 .for mode in sf df xf tf
52 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
53 LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
56 LIB2ADD = $(LIB2FUNCS_EXTRA)
57 LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
59 # Additional sources to handle exceptions; overridden by targets as needed.
60 LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
62 LIB2ADDEHSTATIC = $(LIB2ADDEH)
63 LIB2ADDEHSHARED = $(LIB2ADDEH)
65 # List of extra C and assembler files to add to static and shared libgcc2.
66 # Assembler files should have names ending in `.asm'.
69 # List of extra C and assembler files to add to static libgcc2.
70 # Assembler files should have names ending in `.asm'.
71 LIB2FUNCS_STATIC_EXTRA =
73 # Defined in libgcc2.c, included only in the static library.
74 # KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
75 # built on any of our platforms.
76 LIB2FUNCS_ST = _eprintf __gcc_bcmp
78 FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
79 _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
80 _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
81 _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
83 DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
84 _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
85 _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
86 _df_to_sf _thenan_df _df_to_usi _usi_to_df
88 TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
89 _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
90 _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
91 _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
93 # These might cause a divide overflow trap and so are compiled with
95 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
97 #-----------------------------------------------------------------------
99 # Platform specific bits.
100 # When upgrading GCC, get the following definitions from config/<cpu>/t-*
102 .if ${TARGET_ARCH} == "arm"
103 # from config/arm/t-strongarm-elf
104 CFLAGS+= -Dinhibit_libc -fno-inline
105 LIB1ASMSRC = lib1funcs.asm
106 LIB1ASMFUNCS = _dvmd_tls _bb_init_func
107 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
110 #LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func
111 #LIB1ASMFUNCS+= _call_via_rX _interwork_call_via_rX \
112 # _lshrdi3 _ashrdi3 _ashldi3 \
113 # _negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
114 # _truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
115 # _fixsfsi _fixunssfsi _floatdidf _floatdisf
118 .if ${TARGET_ARCH} == "ia64"
119 # from config/ia64/t-ia64
120 LIB1ASMSRC = lib1funcs.asm
121 LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
122 __divdi3 __moddi3 __udivdi3 __umoddi3 \
123 __divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
124 __nonlocal_goto __restore_stack_nonlocal __trampoline \
125 _fixtfdi _fixunstfdi _floatditf
126 LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
129 .if ${TARGET_ARCH} == "powerpc"
130 # from config/rs6000/t-ppccomm
131 LIB2FUNCS_EXTRA = tramp.asm
132 LIB2FUNCS_STATIC_EXTRA = eabi.asm
135 .if ${TARGET_ARCH} == "sparc64"
136 # from config/sparc/t-elf
137 LIB1ASMSRC = lb1spc.asm
138 LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
141 #-----------------------------------------------------------------------
143 # Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
144 # defined as optimized assembly code in LIB1ASMFUNCS.
145 .if defined(LIB1ASMFUNCS)
146 .for sym in ${LIB1ASMFUNCS}
147 LIB2FUNCS:= ${LIB2FUNCS:S/${sym}//g}
148 LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
152 COMMONHDRS= tm.h tconfig.h options.h unwind.h gthr-default.h
154 #-----------------------------------------------------------------------
156 # Helpful shortcuts for compiler invocations.
158 HIDE = -fvisibility=hidden -DHIDE_EXPORTS
159 CC_T = ${CC} -c ${CFLAGS} ${HIDE} -fPIC
160 CC_P = ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
161 CC_S = ${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
163 #-----------------------------------------------------------------------
165 # Functions from libgcc2.c
168 DIV_CFLAGS = -fexceptions -fnon-call-exceptions
170 STD_FUNCS = ${LIB2FUNCS}
171 DIV_FUNCS = ${LIB2_DIVMOD_FUNCS}
173 STD_CFILE = libgcc2.c
174 DIV_CFILE = libgcc2.c
178 #-----------------------------------------------------------------------
180 # Floating point emulation functions
182 .if ${TARGET_ARCH} == "armNOT_YET" || ${TARGET_ARCH} == "mips" || \
183 ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "sparc64"
185 FPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES -DFLOAT
186 DPBIT_CFLAGS = -DFINE_GRAINED_LIBRARIES
188 FPBIT_CFILE = config/fp-bit.c
189 DPBIT_CFILE = config/fp-bit.c
191 OBJ_GRPS += FPBIT DPBIT
194 #-----------------------------------------------------------------------
196 # Generic build rules for object groups defined above
198 .for T in ${OBJ_GRPS}
199 ${T}_OBJS_T = ${${T}_FUNCS:S/$/.o/}
200 ${T}_OBJS_P = ${${T}_FUNCS:S/$/.po/}
201 ${T}_OBJS_S = ${${T}_FUNCS:S/$/.So/}
202 OBJS += ${${T}_FUNCS:S/$/.o/}
204 ${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
205 ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
206 ${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
207 ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
208 ${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
209 ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
212 #-----------------------------------------------------------------------
214 # Extra objects coming from separate files
217 OBJS += ${LIB2ADD:R:S/$/.o/}
218 SOBJS += ${LIB2ADD:R:S/$/.So/}
219 POBJS += ${LIB2ADD:R:S/$/.po/}
222 #-----------------------------------------------------------------------
224 # Objects that should be in static library only.
226 SYMS_ST = ${LIB2FUNCS_ST} ${LIB2ADD_ST}
227 STAT_OBJS_T = ${SYMS_ST:S/$/.o/}
228 STAT_OBJS_P = ${SYMS_ST:S/$/.po/}
229 STATICOBJS = ${SYMS_ST:S/$/.o/}
231 ${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS}
232 ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
233 ${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS}
234 ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
236 #-----------------------------------------------------------------------
240 .if defined(LIB1ASMSRC)
241 ASM_T = ${LIB1ASMFUNCS:S/$/.o/}
242 ASM_P = ${LIB1ASMFUNCS:S/$/.po/}
243 ASM_S = ${LIB1ASMFUNCS:S/$/.So/}
244 ASM_V = ${LIB1ASMFUNCS:S/$/.vis/}
245 OBJS += ${LIB1ASMFUNCS:S/$/.o/}
247 ${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
248 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
249 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
250 ${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
251 ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
252 -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
253 ${ASM_S}: ${LIB1ASMSRC}
254 ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
255 -o ${.TARGET} ${.ALLSRC:N*.h}
256 ${ASM_V}: ${LIB1ASMSRC}
257 ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
258 -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
259 ( nm -pg ${.PREFIX}.vo | \
260 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
263 CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
266 #-----------------------------------------------------------------------
268 # Exception handling / unwinding support.
270 EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
271 EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
272 EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
273 EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
274 SOBJS += ${EH_OBJS_S}
276 .for _src in ${LIB2ADDEHSTATIC}
277 ${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
278 ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
279 ${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
280 ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
282 .for _src in ${LIB2ADDEHSHARED}
283 ${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
284 ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
288 #-----------------------------------------------------------------------
292 ${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
293 ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
295 CLEANFILES += ${COMMONHDRS}
296 CLEANFILES += cs-*.h option*
298 #-----------------------------------------------------------------------
300 # Build additional static libgcc_eh[_p].a librarries.
302 SHLIB_MKMAP = ${GCCDIR}/mkmap-symver.awk
304 SHLIB_MAPFILES = ${GCCDIR}/libgcc-std.ver
305 VERSION_MAP = libgcc.map
307 libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
308 ( nm -pg ${SOBJS};echo %% ; \
309 cat ${SHLIB_MAPFILES} \
310 | sed -e '/^[ ]*#/d' \
311 -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
312 | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
313 ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
315 CLEANFILES += libgcc.map
317 #-----------------------------------------------------------------------
319 # Build additional static libgcc_eh[_p].a librarries.
321 lib${LIB}_eh.a: ${EH_OBJS_T}
322 @${ECHO} building static ${LIB}_eh library
324 @${AR} cq ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
329 .if ${MK_PROFILE} != "no"
330 lib${LIB}_eh_p.a: ${EH_OBJS_P}
331 @${ECHO} building profiled ${LIB}_eh library
333 @${AR} cq ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
335 all: lib${LIB}_eh_p.a
338 _libinstall: _lib-eh-install
341 .if ${MK_INSTALLLIB} != "no"
342 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
343 ${_INSTALLFLAGS} lib${LIB}_eh.a ${DESTDIR}${LIBDIR}
345 .if ${MK_PROFILE} != "no"
346 ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
347 ${_INSTALLFLAGS} lib${LIB}_eh_p.a ${DESTDIR}${LIBDIR}
350 CLEANFILES+= lib${LIB}_eh.a lib${LIB}_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
352 .include <bsd.lib.mk>