Makefile revision 217942 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 217942 2011-01-27 14:16:12Z 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:Mmipse[lb]} == ""
126LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
127LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
128LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
129LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
130.endif
131.endif
132
133.if ${TARGET_CPUARCH} == "ia64"
134#	from config/ia64/t-ia64
135LIB1ASMSRC   = lib1funcs.asm
136LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
137	__divdi3 __moddi3 __udivdi3 __umoddi3 \
138	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
139	__nonlocal_goto __restore_stack_nonlocal __trampoline \
140	_fixtfdi _fixunstfdi _floatditf
141LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
142.endif
143
144.if ${TARGET_ARCH} == "powerpc"
145#	from config/rs6000/t-ppccomm
146LIB2FUNCS_EXTRA = tramp.asm
147LIB2FUNCS_STATIC_EXTRA = eabi.asm
148.endif
149
150.if ${TARGET_ARCH} == "powerpc64"
151#	from config/rs6000/t-ppccomm
152LIB2FUNCS_EXTRA = tramp.asm
153.endif
154
155.if ${TARGET_CPUARCH} == "sparc64"
156#	from config/sparc/t-elf
157LIB1ASMSRC =   lb1spc.asm
158LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
159.endif
160
161#-----------------------------------------------------------------------
162
163# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
164# defined as optimized assembly code in LIB1ASMFUNCS.
165.if defined(LIB1ASMFUNCS)
166.for sym in ${LIB1ASMFUNCS}
167LIB2FUNCS:=	${LIB2FUNCS:S/${sym}//g}
168LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
169.endfor
170.endif
171
172COMMONHDRS=	tm.h tconfig.h options.h unwind.h gthr-default.h
173
174#-----------------------------------------------------------------------
175#
176# Helpful shortcuts for compiler invocations.
177#
178HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
179CC_T =	${CC} -c ${CFLAGS} ${HIDE} -fPIC
180CC_P =	${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
181CC_S =	${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
182
183#-----------------------------------------------------------------------
184#
185# Functions from libgcc2.c
186#
187STD_CFLAGS =
188DIV_CFLAGS =	-fexceptions -fnon-call-exceptions
189
190STD_FUNCS =	${LIB2FUNCS}
191DIV_FUNCS =	${LIB2_DIVMOD_FUNCS}
192
193STD_CFILE =	libgcc2.c
194DIV_CFILE =	libgcc2.c
195
196OBJ_GRPS =	STD DIV
197
198#-----------------------------------------------------------------------
199#
200# Floating point emulation functions
201#
202.if ${TARGET_CPUARCH} == "armNOT_YET" || \
203    ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
204
205FPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES -DFLOAT
206DPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES
207
208FPBIT_CFILE =	config/fp-bit.c
209DPBIT_CFILE =	config/fp-bit.c
210
211OBJ_GRPS +=	FPBIT DPBIT
212.endif
213
214#-----------------------------------------------------------------------
215#
216# Generic build rules for object groups defined above
217#
218.for T in ${OBJ_GRPS}
219${T}_OBJS_T =	${${T}_FUNCS:S/$/.o/}
220${T}_OBJS_P =	${${T}_FUNCS:S/$/.po/}
221${T}_OBJS_S =	${${T}_FUNCS:S/$/.So/}
222OBJS +=		${${T}_FUNCS:S/$/.o/}
223
224${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
225	${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
226${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
227	${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
228${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
229	${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
230.endfor
231
232#-----------------------------------------------------------------------
233#
234# Extra objects coming from separate files
235#
236.if !empty(LIB2ADD)
237OBJS  +=	${LIB2ADD:R:S/$/.o/}
238SOBJS +=	${LIB2ADD:R:S/$/.So/}
239POBJS +=	${LIB2ADD:R:S/$/.po/}
240.endif
241
242#-----------------------------------------------------------------------
243#
244# Objects that should be in static library only.
245#
246SYMS_ST =	${LIB2FUNCS_ST}	${LIB2ADD_ST}
247STAT_OBJS_T = 	${SYMS_ST:S/$/.o/}
248STAT_OBJS_P = 	${SYMS_ST:S/$/.po/}
249STATICOBJS  =	${SYMS_ST:S/$/.o/}
250
251${STAT_OBJS_T}:	${STD_CFILE} ${COMMONHDRS}
252	${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
253${STAT_OBJS_P}:	${STD_CFILE} ${COMMONHDRS}
254	${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
255
256#-----------------------------------------------------------------------
257#
258# Assembler files.
259#
260.if defined(LIB1ASMSRC)
261ASM_T =		${LIB1ASMFUNCS:S/$/.o/}
262ASM_P =		${LIB1ASMFUNCS:S/$/.po/}
263ASM_S =		${LIB1ASMFUNCS:S/$/.So/}
264ASM_V =		${LIB1ASMFUNCS:S/$/.vis/}
265OBJS +=		${LIB1ASMFUNCS:S/$/.o/}
266
267${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
268	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
269	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
270${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
271	${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
272	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
273${ASM_S}: ${LIB1ASMSRC}
274	${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
275	    -o ${.TARGET} ${.ALLSRC:N*.h}
276${ASM_V}: ${LIB1ASMSRC}
277	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
278	    -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
279	( nm -pg ${.PREFIX}.vo | \
280		awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
281	) > ${.TARGET}
282
283CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
284.endif
285
286#-----------------------------------------------------------------------
287#
288# Exception handling / unwinding support.
289#
290EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
291EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
292EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
293EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
294SOBJS    += ${EH_OBJS_S}
295
296.for _src in ${LIB2ADDEHSTATIC}
297${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
298	${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
299${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
300	${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
301.endfor
302.for _src in ${LIB2ADDEHSHARED}
303${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
304	${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
305.endfor
306
307
308#-----------------------------------------------------------------------
309#
310# Generated headers
311#
312${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
313	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
314
315CLEANFILES += ${COMMONHDRS}
316CLEANFILES += cs-*.h option*
317
318#-----------------------------------------------------------------------
319#
320# Build symbol version map
321#
322SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
323SHLIB_MKMAP_OPTS =
324SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
325VERSION_MAP      = libgcc.map
326
327libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
328	(  nm -pg ${SOBJS};echo %% ; \
329	  cat ${SHLIB_MAPFILES} \
330	    | sed -e '/^[   ]*#/d' \
331	          -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
332	    | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
333	) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
334
335CLEANFILES +=	libgcc.map
336
337#-----------------------------------------------------------------------
338#
339# Build additional static libgcc_eh[_p].a libraries.
340#
341libgcc_eh.a:	${EH_OBJS_T}
342	@${ECHO} building static gcc_eh library
343	@rm -f ${.TARGET}
344	@${AR} cq ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
345	${RANLIB} ${.TARGET}
346
347all:	libgcc_eh.a
348
349.if ${MK_PROFILE} != "no"
350libgcc_eh_p.a:	${EH_OBJS_P}
351	@${ECHO} building profiled gcc_eh library
352	@rm -f ${.TARGET}
353	@${AR} cq ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
354	${RANLIB} ${.TARGET}
355all:	libgcc_eh_p.a
356.endif
357
358_libinstall: _lib-eh-install
359
360_lib-eh-install:
361.if ${MK_INSTALLLIB} != "no"
362	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
363		${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
364.endif
365.if ${MK_PROFILE} != "no"
366	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
367		${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
368.endif
369
370CLEANFILES+=	libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
371
372.include <bsd.lib.mk>
373
374.SUFFIXES: .vis .vo
375