Makefile revision 218064 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 218064 2011-01-29 10:32:00Z jchandra $
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} == "sparc64" || ${TARGET_CPUARCH} == "mips"
19LIB=		gcc
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${.CURDIR}/../../usr.bin/cc/cc_tools
29
30LDFLAGS+=	-nodefaultlibs
31LDADD+=		-lc
32
33OBJS=		# added to below in various ways depending on TARGET_CPUARCH
34
35#---------------------------------------------------------------------------
36#
37# When upgrading GCC, get the following defintions straight from Makefile.in
38#
39# Library members defined in libgcc2.c.
40LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
41	_cmpdi2 _ucmpdi2 _clear_cache \
42	_enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
43	_addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
44	_ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
45	_popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
46	_powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
47	_divxc3 _divtc3
48
49# The floating-point conversion routines that involve a single-word integer.
50.for mode in sf df xf
51LIB2FUNCS+= _fixuns${mode}si
52.endfor
53
54# Likewise double-word routines.
55.for mode in sf df xf tf
56LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
57LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
58.endfor
59
60LIB2ADD = $(LIB2FUNCS_EXTRA)
61LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
62
63# Additional sources to handle exceptions; overridden by targets as needed.
64LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
65	unwind-c.c
66LIB2ADDEHSTATIC = $(LIB2ADDEH)
67LIB2ADDEHSHARED = $(LIB2ADDEH)
68
69# List of extra C and assembler files to add to static and shared libgcc2.
70# Assembler files should have names ending in `.asm'.
71LIB2FUNCS_EXTRA =
72
73# List of extra C and assembler files to add to static libgcc2.
74# Assembler files should have names ending in `.asm'.
75LIB2FUNCS_STATIC_EXTRA =
76
77# Defined in libgcc2.c, included only in the static library.
78# KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
79# built on any of our platforms.
80LIB2FUNCS_ST = _eprintf __gcc_bcmp
81
82FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
83    _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
84    _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
85    _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
86
87DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
88    _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
89    _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
90    _df_to_sf _thenan_df _df_to_usi _usi_to_df
91
92TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
93    _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
94    _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
95    _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
96
97# These might cause a divide overflow trap and so are compiled with
98# unwinder info.
99LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
100
101#-----------------------------------------------------------------------
102#
103#	Platform specific bits.
104#	When upgrading GCC, get the following definitions from config/<cpu>/t-*
105#
106.if ${TARGET_CPUARCH} == "arm"
107#	from config/arm/t-strongarm-elf
108CFLAGS+=	-Dinhibit_libc -fno-inline
109LIB1ASMSRC =	lib1funcs.asm
110LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
111LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
112
113# Not now
114#LIB1ASMFUNCS =  _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func
115#LIB1ASMFUNCS+=	_call_via_rX _interwork_call_via_rX \
116#	_lshrdi3 _ashrdi3 _ashldi3 \
117#	_negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
118#	_truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
119#	_fixsfsi _fixunssfsi _floatdidf _floatdisf
120.endif
121
122.if ${TARGET_CPUARCH} == mips
123LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
124# ABIs other than o32 need this
125.if ${TARGET_ARCH:Mmips64*} != "" || \
126    ${TARGET_ARCH:Mmipsn32*} != ""
127LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
128LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
129LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
130LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
131.endif
132.endif
133
134.if ${TARGET_CPUARCH} == "ia64"
135#	from config/ia64/t-ia64
136LIB1ASMSRC   = lib1funcs.asm
137LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
138	__divdi3 __moddi3 __udivdi3 __umoddi3 \
139	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
140	__nonlocal_goto __restore_stack_nonlocal __trampoline \
141	_fixtfdi _fixunstfdi _floatditf
142LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
143.endif
144
145.if ${TARGET_ARCH} == "powerpc"
146#	from config/rs6000/t-ppccomm
147LIB2FUNCS_EXTRA = tramp.asm
148LIB2FUNCS_STATIC_EXTRA = eabi.asm
149.endif
150
151.if ${TARGET_ARCH} == "powerpc64"
152#	from config/rs6000/t-ppccomm
153LIB2FUNCS_EXTRA = tramp.asm
154.endif
155
156.if ${TARGET_CPUARCH} == "sparc64"
157#	from config/sparc/t-elf
158LIB1ASMSRC =   lb1spc.asm
159LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
160.endif
161
162#-----------------------------------------------------------------------
163
164# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
165# defined as optimized assembly code in LIB1ASMFUNCS.
166.if defined(LIB1ASMFUNCS)
167.for sym in ${LIB1ASMFUNCS}
168LIB2FUNCS:=	${LIB2FUNCS:S/${sym}//g}
169LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
170.endfor
171.endif
172
173COMMONHDRS=	tm.h tconfig.h options.h unwind.h gthr-default.h
174
175#-----------------------------------------------------------------------
176#
177# Helpful shortcuts for compiler invocations.
178#
179HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
180CC_T =	${CC} -c ${CFLAGS} ${HIDE} -fPIC
181CC_P =	${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
182CC_S =	${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
183
184#-----------------------------------------------------------------------
185#
186# Functions from libgcc2.c
187#
188STD_CFLAGS =
189DIV_CFLAGS =	-fexceptions -fnon-call-exceptions
190
191STD_FUNCS =	${LIB2FUNCS}
192DIV_FUNCS =	${LIB2_DIVMOD_FUNCS}
193
194STD_CFILE =	libgcc2.c
195DIV_CFILE =	libgcc2.c
196
197OBJ_GRPS =	STD DIV
198
199#-----------------------------------------------------------------------
200#
201# Floating point emulation functions
202#
203.if ${TARGET_CPUARCH} == "armNOT_YET" || \
204    ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
205
206FPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES -DFLOAT
207DPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES
208
209FPBIT_CFILE =	config/fp-bit.c
210DPBIT_CFILE =	config/fp-bit.c
211
212OBJ_GRPS +=	FPBIT DPBIT
213.endif
214
215#-----------------------------------------------------------------------
216#
217# Generic build rules for object groups defined above
218#
219.for T in ${OBJ_GRPS}
220${T}_OBJS_T =	${${T}_FUNCS:S/$/.o/}
221${T}_OBJS_P =	${${T}_FUNCS:S/$/.po/}
222${T}_OBJS_S =	${${T}_FUNCS:S/$/.So/}
223OBJS +=		${${T}_FUNCS:S/$/.o/}
224
225${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
226	${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
227${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
228	${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
229${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
230	${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
231.endfor
232
233#-----------------------------------------------------------------------
234#
235# Extra objects coming from separate files
236#
237.if !empty(LIB2ADD)
238OBJS  +=	${LIB2ADD:R:S/$/.o/}
239SOBJS +=	${LIB2ADD:R:S/$/.So/}
240POBJS +=	${LIB2ADD:R:S/$/.po/}
241.endif
242
243#-----------------------------------------------------------------------
244#
245# Objects that should be in static library only.
246#
247SYMS_ST =	${LIB2FUNCS_ST}	${LIB2ADD_ST}
248STAT_OBJS_T = 	${SYMS_ST:S/$/.o/}
249STAT_OBJS_P = 	${SYMS_ST:S/$/.po/}
250STATICOBJS  =	${SYMS_ST:S/$/.o/}
251
252${STAT_OBJS_T}:	${STD_CFILE} ${COMMONHDRS}
253	${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
254${STAT_OBJS_P}:	${STD_CFILE} ${COMMONHDRS}
255	${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
256
257#-----------------------------------------------------------------------
258#
259# Assembler files.
260#
261.if defined(LIB1ASMSRC)
262ASM_T =		${LIB1ASMFUNCS:S/$/.o/}
263ASM_P =		${LIB1ASMFUNCS:S/$/.po/}
264ASM_S =		${LIB1ASMFUNCS:S/$/.So/}
265ASM_V =		${LIB1ASMFUNCS:S/$/.vis/}
266OBJS +=		${LIB1ASMFUNCS:S/$/.o/}
267
268${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
269	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
270	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
271${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
272	${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
273	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
274${ASM_S}: ${LIB1ASMSRC}
275	${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
276	    -o ${.TARGET} ${.ALLSRC:N*.h}
277${ASM_V}: ${LIB1ASMSRC}
278	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
279	    -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
280	( nm -pg ${.PREFIX}.vo | \
281		awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
282	) > ${.TARGET}
283
284CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
285.endif
286
287#-----------------------------------------------------------------------
288#
289# Exception handling / unwinding support.
290#
291EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
292EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
293EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
294EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
295SOBJS    += ${EH_OBJS_S}
296
297.for _src in ${LIB2ADDEHSTATIC}
298${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
299	${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
300${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
301	${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
302.endfor
303.for _src in ${LIB2ADDEHSHARED}
304${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
305	${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
306.endfor
307
308
309#-----------------------------------------------------------------------
310#
311# Generated headers
312#
313${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
314	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
315
316CLEANFILES += ${COMMONHDRS}
317CLEANFILES += cs-*.h option*
318
319#-----------------------------------------------------------------------
320#
321# Build symbol version map
322#
323SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
324SHLIB_MKMAP_OPTS =
325SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
326VERSION_MAP      = libgcc.map
327
328libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
329	(  nm -pg ${SOBJS};echo %% ; \
330	  cat ${SHLIB_MAPFILES} \
331	    | sed -e '/^[   ]*#/d' \
332	          -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
333	    | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
334	) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
335
336CLEANFILES +=	libgcc.map
337
338#-----------------------------------------------------------------------
339#
340# Build additional static libgcc_eh[_p].a libraries.
341#
342libgcc_eh.a:	${EH_OBJS_T}
343	@${ECHO} building static gcc_eh library
344	@rm -f ${.TARGET}
345	@${AR} cq ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
346	${RANLIB} ${.TARGET}
347
348all:	libgcc_eh.a
349
350.if ${MK_PROFILE} != "no"
351libgcc_eh_p.a:	${EH_OBJS_P}
352	@${ECHO} building profiled gcc_eh library
353	@rm -f ${.TARGET}
354	@${AR} cq ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
355	${RANLIB} ${.TARGET}
356all:	libgcc_eh_p.a
357.endif
358
359_libinstall: _lib-eh-install
360
361_lib-eh-install:
362.if ${MK_INSTALLLIB} != "no"
363	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
364		${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
365.endif
366.if ${MK_PROFILE} != "no"
367	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
368		${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
369.endif
370
371CLEANFILES+=	libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
372
373.include <bsd.lib.mk>
374
375.SUFFIXES: .vis .vo
376