Makefile revision 201852 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 201852 2010-01-08 23:11:23Z imp $
2GCCDIR=	${.CURDIR}/../../../contrib/gcc
3GCCLIB=	${.CURDIR}/../../../contrib/gcclibs
4
5LIB=		gcc
6SHLIB_NAME=	libgcc_s.so.1
7SHLIBDIR?=	/lib
8
9.include <bsd.own.mk>
10#
11# libgcc is linked in last and thus cannot depend on ssp symbols coming
12# from earlier libraries. Disable stack protection for this library.
13#
14MK_SSP=	no
15
16.include "${.CURDIR}/../../usr.bin/cc/Makefile.tgt"
17
18.PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR}
19
20CFLAGS+=	-DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
21		-DHAVE_GTHR_DEFAULT \
22		-I${GCCLIB}/include \
23		-I${GCCDIR}/config -I${GCCDIR} -I. \
24		-I${.CURDIR}/../../usr.bin/cc/cc_tools
25
26LDFLAGS+=	-nodefaultlibs
27LDADD+=		-lc
28
29OBJS=		# added to below in various ways depending on TARGET_ARCH
30
31#---------------------------------------------------------------------------
32#
33# When upgrading GCC, get the following defintions straight from Makefile.in
34#
35# Library members defined in libgcc2.c.
36LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
37	_cmpdi2 _ucmpdi2 _clear_cache \
38	_enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
39	_addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
40	_ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
41	_popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
42	_powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
43	_divxc3 _divtc3
44
45# The floating-point conversion routines that involve a single-word integer.
46.for mode in sf df xf
47LIB2FUNCS+= _fixuns${mode}si
48.endfor
49
50# Likewise double-word routines.
51.for mode in sf df xf tf
52LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
53LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
54.endfor
55
56LIB2ADD = $(LIB2FUNCS_EXTRA)
57LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
58
59# Additional sources to handle exceptions; overridden by targets as needed.
60LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
61	unwind-c.c
62LIB2ADDEHSTATIC = $(LIB2ADDEH)
63LIB2ADDEHSHARED = $(LIB2ADDEH)
64
65# List of extra C and assembler files to add to static and shared libgcc2.
66# Assembler files should have names ending in `.asm'.
67LIB2FUNCS_EXTRA =
68
69# List of extra C and assembler files to add to static libgcc2.
70# Assembler files should have names ending in `.asm'.
71LIB2FUNCS_STATIC_EXTRA =
72
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.
76LIB2FUNCS_ST = _eprintf __gcc_bcmp
77
78FPBIT_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
82
83DPBIT_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
87
88TPBIT_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
92
93# These might cause a divide overflow trap and so are compiled with
94# unwinder info.
95LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
96
97#-----------------------------------------------------------------------
98#
99#	Platform specific bits.
100#	When upgrading GCC, get the following definitions from config/<cpu>/t-*
101#
102.if ${TARGET_ARCH} == "arm"
103#	from config/arm/t-strongarm-elf
104CFLAGS+=	-Dinhibit_libc -fno-inline
105LIB1ASMSRC =	lib1funcs.asm
106LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
107LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
108
109# Not now
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
116.endif
117
118.if ${TARGET_ARCH} == "mips"
119LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
120.endif
121
122.if ${TARGET_ARCH} == "ia64"
123#	from config/ia64/t-ia64
124LIB1ASMSRC   = lib1funcs.asm
125LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
126	__divdi3 __moddi3 __udivdi3 __umoddi3 \
127	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
128	__nonlocal_goto __restore_stack_nonlocal __trampoline \
129	_fixtfdi _fixunstfdi _floatditf
130LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
131.endif
132
133.if ${TARGET_ARCH} == "powerpc"
134#	from config/rs6000/t-ppccomm
135LIB2FUNCS_EXTRA = tramp.asm
136LIB2FUNCS_STATIC_EXTRA = eabi.asm
137.endif
138
139.if ${TARGET_ARCH} == "sparc64"
140#	from config/sparc/t-elf
141LIB1ASMSRC =   lb1spc.asm
142LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
143.endif
144
145#-----------------------------------------------------------------------
146
147# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
148# defined as optimized assembly code in LIB1ASMFUNCS.
149.if defined(LIB1ASMFUNCS)
150.for sym in ${LIB1ASMFUNCS}
151LIB2FUNCS:=	${LIB2FUNCS:S/${sym}//g}
152LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
153.endfor
154.endif
155
156COMMONHDRS=	tm.h tconfig.h options.h unwind.h gthr-default.h
157
158#-----------------------------------------------------------------------
159#
160# Helpful shortcuts for compiler invocations.
161#
162HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
163CC_T =	${CC} -c ${CFLAGS} ${HIDE} -fPIC
164CC_P =	${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
165CC_S =	${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
166
167#-----------------------------------------------------------------------
168#
169# Functions from libgcc2.c
170#
171STD_CFLAGS =
172DIV_CFLAGS =	-fexceptions -fnon-call-exceptions
173
174STD_FUNCS =	${LIB2FUNCS}
175DIV_FUNCS =	${LIB2_DIVMOD_FUNCS}
176
177STD_CFILE =	libgcc2.c
178DIV_CFILE =	libgcc2.c
179
180OBJ_GRPS =	STD DIV
181
182#-----------------------------------------------------------------------
183#
184# Floating point emulation functions
185#
186.if ${TARGET_ARCH} == "armNOT_YET" || \
187    ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "sparc64"
188
189FPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES -DFLOAT
190DPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES
191
192FPBIT_CFILE =	config/fp-bit.c
193DPBIT_CFILE =	config/fp-bit.c
194
195OBJ_GRPS +=	FPBIT DPBIT
196.endif
197
198#-----------------------------------------------------------------------
199#
200# Generic build rules for object groups defined above
201#
202.for T in ${OBJ_GRPS}
203${T}_OBJS_T =	${${T}_FUNCS:S/$/.o/}
204${T}_OBJS_P =	${${T}_FUNCS:S/$/.po/}
205${T}_OBJS_S =	${${T}_FUNCS:S/$/.So/}
206OBJS +=		${${T}_FUNCS:S/$/.o/}
207
208${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
209	${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
210${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
211	${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
212${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
213	${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
214.endfor
215
216#-----------------------------------------------------------------------
217#
218# Extra objects coming from separate files
219#
220.if !empty(LIB2ADD)
221OBJS  +=	${LIB2ADD:R:S/$/.o/}
222SOBJS +=	${LIB2ADD:R:S/$/.So/}
223POBJS +=	${LIB2ADD:R:S/$/.po/}
224.endif
225
226#-----------------------------------------------------------------------
227#
228# Objects that should be in static library only.
229#
230SYMS_ST =	${LIB2FUNCS_ST}	${LIB2ADD_ST}
231STAT_OBJS_T = 	${SYMS_ST:S/$/.o/}
232STAT_OBJS_P = 	${SYMS_ST:S/$/.po/}
233STATICOBJS  =	${SYMS_ST:S/$/.o/}
234
235${STAT_OBJS_T}:	${STD_CFILE} ${COMMONHDRS}
236	${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
237${STAT_OBJS_P}:	${STD_CFILE} ${COMMONHDRS}
238	${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
239
240#-----------------------------------------------------------------------
241#
242# Assembler files.
243#
244.if defined(LIB1ASMSRC)
245ASM_T =		${LIB1ASMFUNCS:S/$/.o/}
246ASM_P =		${LIB1ASMFUNCS:S/$/.po/}
247ASM_S =		${LIB1ASMFUNCS:S/$/.So/}
248ASM_V =		${LIB1ASMFUNCS:S/$/.vis/}
249OBJS +=		${LIB1ASMFUNCS:S/$/.o/}
250
251${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
252	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
253	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
254${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
255	${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
256	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
257${ASM_S}: ${LIB1ASMSRC}
258	${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
259	    -o ${.TARGET} ${.ALLSRC:N*.h}
260${ASM_V}: ${LIB1ASMSRC}
261	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
262	    -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
263	( nm -pg ${.PREFIX}.vo | \
264		awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
265	) > ${.TARGET}
266
267CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
268.endif
269
270#-----------------------------------------------------------------------
271#
272# Exception handling / unwinding support.
273#
274EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
275EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
276EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
277EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
278SOBJS    += ${EH_OBJS_S}
279
280.for _src in ${LIB2ADDEHSTATIC}
281${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
282	${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
283${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
284	${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
285.endfor
286.for _src in ${LIB2ADDEHSHARED}
287${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
288	${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
289.endfor
290
291
292#-----------------------------------------------------------------------
293#
294# Generated headers
295#
296${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
297	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
298
299CLEANFILES += ${COMMONHDRS}
300CLEANFILES += cs-*.h option*
301
302#-----------------------------------------------------------------------
303#
304# Build symbol version map
305#
306SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
307SHLIB_MKMAP_OPTS =
308SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
309VERSION_MAP      = libgcc.map
310
311libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
312	(  nm -pg ${SOBJS};echo %% ; \
313	  cat ${SHLIB_MAPFILES} \
314	    | sed -e '/^[   ]*#/d' \
315	          -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
316	    | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
317	) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
318
319CLEANFILES +=	libgcc.map
320
321#-----------------------------------------------------------------------
322#
323# Build additional static libgcc_eh[_p].a libraries.
324#
325lib${LIB}_eh.a:	${EH_OBJS_T}
326	@${ECHO} building static ${LIB}_eh library
327	@rm -f ${.TARGET}
328	@${AR} cq ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
329	${RANLIB} ${.TARGET}
330
331all:	lib${LIB}_eh.a
332
333.if ${MK_PROFILE} != "no"
334lib${LIB}_eh_p.a:	${EH_OBJS_P}
335	@${ECHO} building profiled ${LIB}_eh library
336	@rm -f ${.TARGET}
337	@${AR} cq ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
338	${RANLIB} ${.TARGET}
339all:	lib${LIB}_eh_p.a
340.endif
341
342_libinstall: _lib-eh-install
343
344_lib-eh-install:
345.if ${MK_INSTALLLIB} != "no"
346	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
347		${_INSTALLFLAGS} lib${LIB}_eh.a ${DESTDIR}${LIBDIR}
348.endif
349.if ${MK_PROFILE} != "no"
350	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
351		${_INSTALLFLAGS} lib${LIB}_eh_p.a ${DESTDIR}${LIBDIR}
352.endif
353
354CLEANFILES+=	lib${LIB}_eh.a lib${LIB}_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
355
356.include <bsd.lib.mk>
357
358.SUFFIXES: .vis .vo
359