Makefile revision 195151 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 195151 2009-06-28 23:51:39Z kan $
2GCCDIR=	${.CURDIR}/../../../contrib/gcc
3GCCLIB=	${.CURDIR}/../../../contrib/gcclibs
4
5LIB=		gcc
6SHLIB_NAME=	libgcc_s.so.1
7SHLIBDIR?=	/lib
8
9#
10# libgcc is linked in last and thus cannot depend on ssp symbols coming
11# from earlier libraries. Disable stack protection for this library.
12#
13WITHOUT_SSP=	yes
14
15.include <bsd.own.mk>
16.include "${.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${.CURDIR}/../../usr.bin/cc/cc_tools
25
26LDFLAGS+=	-nodefaultlibs
27LDADD+=		-lc -lssp_nonshared
28
29OBJS=		# added to below in various ways depending on TARGET_ARCH
30
31#---------------------------------------------------------------------------
32#
33# When upgrading GCC, get the following defintions straight from Makefile.in
34#
35# Library members defined in libgcc2.c.
36LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
37	_cmpdi2 _ucmpdi2 _clear_cache \
38	_enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
39	_addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
40	_ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
41	_popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
42	_powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
43	_divxc3 _divtc3
44
45# The floating-point conversion routines that involve a single-word integer.
46.for mode in sf df xf
47LIB2FUNCS+= _fixuns${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} == "ia64"
119#	from config/ia64/t-ia64
120LIB1ASMSRC   = lib1funcs.asm
121LIB1ASMFUNCS = __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
126LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
127.endif
128
129.if ${TARGET_ARCH} == "powerpc"
130#	from config/rs6000/t-ppccomm
131LIB2FUNCS_EXTRA = tramp.asm
132LIB2FUNCS_STATIC_EXTRA = eabi.asm
133.endif
134
135.if ${TARGET_ARCH} == "sparc64"
136#	from config/sparc/t-elf
137LIB1ASMSRC =   lb1spc.asm
138LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
139.endif
140
141#-----------------------------------------------------------------------
142
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}
147LIB2FUNCS:=	${LIB2FUNCS:S/${sym}//g}
148LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
149.endfor
150.endif
151
152COMMONHDRS=	tm.h tconfig.h options.h unwind.h gthr-default.h
153
154#-----------------------------------------------------------------------
155#
156# Helpful shortcuts for compiler invocations.
157#
158HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
159CC_T =	${CC} -c ${CFLAGS} ${HIDE} -fPIC
160CC_P =	${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
161CC_S =	${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
162
163#-----------------------------------------------------------------------
164#
165# Functions from libgcc2.c
166#
167STD_CFLAGS =
168DIV_CFLAGS =	-fexceptions -fnon-call-exceptions
169
170STD_FUNCS =	${LIB2FUNCS}
171DIV_FUNCS =	${LIB2_DIVMOD_FUNCS}
172
173STD_CFILE =	libgcc2.c
174DIV_CFILE =	libgcc2.c
175
176OBJ_GRPS =	STD DIV
177
178#-----------------------------------------------------------------------
179#
180# Floating point emulation functions
181#
182.if ${TARGET_ARCH} == "armNOT_YET" || ${TARGET_ARCH} == "mips" || \
183    ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "sparc64"
184
185FPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES -DFLOAT
186DPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES
187
188FPBIT_CFILE =	config/fp-bit.c
189DPBIT_CFILE =	config/fp-bit.c
190
191OBJ_GRPS +=	FPBIT DPBIT
192.endif
193
194#-----------------------------------------------------------------------
195#
196# Generic build rules for object groups defined above
197#
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/}
202OBJS +=		${${T}_FUNCS:S/$/.o/}
203
204${${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}
210.endfor
211
212#-----------------------------------------------------------------------
213#
214# Extra objects coming from separate files
215#
216.if !empty(LIB2ADD)
217OBJS  +=	${LIB2ADD:R:S/$/.o/}
218SOBJS +=	${LIB2ADD:R:S/$/.So/}
219POBJS +=	${LIB2ADD:R:S/$/.po/}
220.endif
221
222#-----------------------------------------------------------------------
223#
224# Objects that should be in static library only.
225#
226SYMS_ST =	${LIB2FUNCS_ST}	${LIB2ADD_ST}
227STAT_OBJS_T = 	${SYMS_ST:S/$/.o/}
228STAT_OBJS_P = 	${SYMS_ST:S/$/.po/}
229STATICOBJS  =	${SYMS_ST:S/$/.o/}
230
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}
235
236#-----------------------------------------------------------------------
237#
238# Assembler files.
239#
240.if defined(LIB1ASMSRC)
241ASM_T =		${LIB1ASMFUNCS:S/$/.o/}
242ASM_P =		${LIB1ASMFUNCS:S/$/.po/}
243ASM_S =		${LIB1ASMFUNCS:S/$/.So/}
244ASM_V =		${LIB1ASMFUNCS:S/$/.vis/}
245OBJS +=		${LIB1ASMFUNCS:S/$/.o/}
246
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 }'\
261	) > ${.TARGET}
262
263CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
264.endif
265
266#-----------------------------------------------------------------------
267#
268# Exception handling / unwinding support.
269#
270EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
271EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
272EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
273EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
274SOBJS    += ${EH_OBJS_S}
275
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}
281.endfor
282.for _src in ${LIB2ADDEHSHARED}
283${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
284	${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
285.endfor
286
287
288#-----------------------------------------------------------------------
289#
290# Generated headers
291#
292${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
293	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
294
295CLEANFILES += ${COMMONHDRS}
296CLEANFILES += cs-*.h option*
297
298#-----------------------------------------------------------------------
299#
300# Build additional static libgcc_eh[_p].a librarries.
301#
302SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
303SHLIB_MKMAP_OPTS =
304SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
305VERSION_MAP      = libgcc.map
306
307libgcc.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} > ${.TARGET}
314
315CLEANFILES +=	libgcc.map
316
317#-----------------------------------------------------------------------
318#
319# Build additional static libgcc_eh[_p].a librarries.
320#
321lib${LIB}_eh.a:	${EH_OBJS_T}
322	@${ECHO} building static ${LIB}_eh library
323	@rm -f ${.TARGET}
324	@${AR} cq ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
325	${RANLIB} ${.TARGET}
326
327all:	lib${LIB}_eh.a
328
329.if ${MK_PROFILE} != "no"
330lib${LIB}_eh_p.a:	${EH_OBJS_P}
331	@${ECHO} building profiled ${LIB}_eh library
332	@rm -f ${.TARGET}
333	@${AR} cq ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
334	${RANLIB} ${.TARGET}
335all:	lib${LIB}_eh_p.a
336.endif
337
338_libinstall: _lib-eh-install
339
340_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}
344.endif
345.if ${MK_PROFILE} != "no"
346	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
347		${_INSTALLFLAGS} lib${LIB}_eh_p.a ${DESTDIR}${LIBDIR}
348.endif
349
350CLEANFILES+=	lib${LIB}_eh.a lib${LIB}_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
351
352.include <bsd.lib.mk>
353
354.SUFFIXES: .vis .vo
355