Makefile revision 249702 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 249702 2013-04-20 14:44:28Z ed $
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} == "arm" && ${MK_ARM_EABI} != "no"
19CFLAGS+=	-DTARGET_ARM_EABI
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 \
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.if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm"
49LIB2FUNCS+= _clear_cache
50.endif
51
52# The floating-point conversion routines that involve a single-word integer.
53.for mode in sf df xf
54LIB2FUNCS+= _fixuns${mode}si
55.endfor
56
57# Likewise double-word routines.
58.if ${TARGET_CPUARCH} != "arm" || ${MK_ARM_EABI} == "no"
59# These are implemented in an ARM specific file but will not be filtered out
60.for mode in sf df xf tf
61LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
62LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
63.endfor
64.endif
65
66LIB2ADD = $(LIB2FUNCS_EXTRA)
67LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
68
69# Additional sources to handle exceptions; overridden by targets as needed.
70LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
71	unwind-c.c
72LIB2ADDEHSTATIC = $(LIB2ADDEH)
73LIB2ADDEHSHARED = $(LIB2ADDEH)
74
75# List of extra C and assembler files to add to static and shared libgcc2.
76# Assembler files should have names ending in `.asm'.
77LIB2FUNCS_EXTRA =
78
79# List of extra C and assembler files to add to static libgcc2.
80# Assembler files should have names ending in `.asm'.
81LIB2FUNCS_STATIC_EXTRA =
82
83# Defined in libgcc2.c, included only in the static library.
84# KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
85# built on any of our platforms.
86LIB2FUNCS_ST = _eprintf __gcc_bcmp
87
88FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
89    _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
90    _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
91    _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
92
93DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
94    _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
95    _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
96    _df_to_sf _thenan_df _df_to_usi _usi_to_df
97
98TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
99    _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
100    _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
101    _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
102
103# These might cause a divide overflow trap and so are compiled with
104# unwinder info.
105LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
106
107#-----------------------------------------------------------------------
108#
109#	Platform specific bits.
110#	When upgrading GCC, get the following definitions from config/<cpu>/t-*
111#
112.if ${TARGET_CPUARCH} == "arm"
113#	from config/arm/t-strongarm-elf
114CFLAGS+=	-Dinhibit_libc -fno-inline
115.if ${COMPILER_TYPE} == "clang"
116CFLAGS+=	-fheinous-gnu-extensions
117.endif
118
119LIB1ASMSRC =	lib1funcs.asm
120LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
121.if ${MK_ARM_EABI} != "no"
122LIB2ADDEH =	unwind-arm.c libunwind.S pr-support.c unwind-c.c
123# Some compilers generate __aeabi_ functions libgcc_s is missing
124DPADD+=		${LIBGCC}
125LDADD+=		-lgcc
126.else
127LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
128.endif
129.endif
130
131.if ${TARGET_CPUARCH} == mips
132LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
133# ABIs other than o32 need this
134.if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
135LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
136LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
137LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
138LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
139.endif
140.endif
141
142.if ${TARGET_CPUARCH} == "ia64"
143#	from config/ia64/t-ia64
144LIB1ASMSRC   = lib1funcs.asm
145LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
146	__divdi3 __moddi3 __udivdi3 __umoddi3 \
147	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
148	__nonlocal_goto __restore_stack_nonlocal __trampoline \
149	_fixtfdi _fixunstfdi _floatditf
150LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
151.endif
152
153.if ${TARGET_ARCH} == "powerpc"
154#	from config/rs6000/t-ppccomm
155LIB2FUNCS_EXTRA = tramp.asm
156LIB2FUNCS_STATIC_EXTRA = eabi.asm
157.endif
158
159.if ${TARGET_ARCH} == "powerpc64"
160#	from config/rs6000/t-ppccomm
161LIB2FUNCS_EXTRA = tramp.asm
162.endif
163
164.if ${TARGET_CPUARCH} == "sparc64"
165#	from config/sparc/t-elf
166LIB1ASMSRC =   lb1spc.asm
167LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
168.endif
169
170#-----------------------------------------------------------------------
171
172# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
173# defined as optimized assembly code in LIB1ASMFUNCS.
174.if defined(LIB1ASMFUNCS)
175.for sym in ${LIB1ASMFUNCS}
176LIB2FUNCS:=	${LIB2FUNCS:S/${sym}//g}
177LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
178.endfor
179.endif
180
181COMMONHDRS=	tm.h tconfig.h options.h unwind.h gthr-default.h
182
183#-----------------------------------------------------------------------
184#
185# Helpful shortcuts for compiler invocations.
186#
187HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
188CC_T =	${CC} -c ${CFLAGS} ${HIDE} -fPIC
189CC_P =	${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
190CC_S =	${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
191
192#-----------------------------------------------------------------------
193#
194# Functions from libgcc2.c
195#
196STD_CFLAGS =
197DIV_CFLAGS =	-fexceptions -fnon-call-exceptions
198
199STD_FUNCS =	${LIB2FUNCS}
200DIV_FUNCS =	${LIB2_DIVMOD_FUNCS}
201
202STD_CFILE =	libgcc2.c
203DIV_CFILE =	libgcc2.c
204
205OBJ_GRPS =	STD DIV
206
207#-----------------------------------------------------------------------
208#
209# Floating point emulation functions
210#
211.if ${TARGET_CPUARCH} == "armNOT_YET" || \
212    ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
213
214FPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES -DFLOAT
215DPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES
216
217FPBIT_CFILE =	config/fp-bit.c
218DPBIT_CFILE =	config/fp-bit.c
219
220OBJ_GRPS +=	FPBIT DPBIT
221.endif
222
223#-----------------------------------------------------------------------
224#
225# Generic build rules for object groups defined above
226#
227.for T in ${OBJ_GRPS}
228${T}_OBJS_T =	${${T}_FUNCS:S/$/.o/}
229${T}_OBJS_P =	${${T}_FUNCS:S/$/.po/}
230${T}_OBJS_S =	${${T}_FUNCS:S/$/.So/}
231OBJS +=		${${T}_FUNCS:S/$/.o/}
232
233${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
234	${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
235${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
236	${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
237${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
238	${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
239.endfor
240
241#-----------------------------------------------------------------------
242#
243# Extra objects coming from separate files
244#
245.if !empty(LIB2ADD)
246OBJS  +=	${LIB2ADD:R:S/$/.o/}
247SOBJS +=	${LIB2ADD:R:S/$/.So/}
248POBJS +=	${LIB2ADD:R:S/$/.po/}
249.endif
250
251#-----------------------------------------------------------------------
252#
253# Objects that should be in static library only.
254#
255SYMS_ST =	${LIB2FUNCS_ST}	${LIB2ADD_ST}
256STAT_OBJS_T = 	${SYMS_ST:S/$/.o/}
257STAT_OBJS_P = 	${SYMS_ST:S/$/.po/}
258STATICOBJS  =	${SYMS_ST:S/$/.o/}
259
260${STAT_OBJS_T}:	${STD_CFILE} ${COMMONHDRS}
261	${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
262${STAT_OBJS_P}:	${STD_CFILE} ${COMMONHDRS}
263	${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
264
265#-----------------------------------------------------------------------
266#
267# Assembler files.
268#
269.if defined(LIB1ASMSRC)
270ASM_T =		${LIB1ASMFUNCS:S/$/.o/}
271ASM_P =		${LIB1ASMFUNCS:S/$/.po/}
272ASM_S =		${LIB1ASMFUNCS:S/$/.So/}
273ASM_V =		${LIB1ASMFUNCS:S/$/.vis/}
274OBJS +=		${LIB1ASMFUNCS:S/$/.o/}
275
276${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
277	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
278	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
279${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
280	${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
281	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
282${ASM_S}: ${LIB1ASMSRC}
283	${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
284	    -o ${.TARGET} ${.ALLSRC:N*.h}
285${ASM_V}: ${LIB1ASMSRC}
286	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
287	    -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
288	( ${NM} -pg ${.PREFIX}.vo | \
289		awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
290	) > ${.TARGET}
291
292CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
293.endif
294
295#-----------------------------------------------------------------------
296#
297# Exception handling / unwinding support.
298#
299EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
300EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
301EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
302EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
303SOBJS    += ${EH_OBJS_S}
304
305.for _src in ${LIB2ADDEHSTATIC}
306${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
307	${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
308${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
309	${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
310.endfor
311.for _src in ${LIB2ADDEHSHARED}
312${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
313	${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
314.endfor
315
316
317#-----------------------------------------------------------------------
318#
319# Generated headers
320#
321${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
322	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
323
324CLEANFILES += ${COMMONHDRS}
325CLEANFILES += cs-*.h option*
326
327#-----------------------------------------------------------------------
328#
329# Build symbol version map
330#
331SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
332SHLIB_MKMAP_OPTS =
333SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
334.if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
335SHLIB_MAPFILES  += ${GCCDIR}/config/arm/libgcc-bpabi.ver
336.endif
337VERSION_MAP      = libgcc.map
338
339libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
340	(  ${NM} -pg ${SOBJS};echo %% ; \
341	  cat ${SHLIB_MAPFILES} \
342	    | sed -e '/^[   ]*#/d' \
343	          -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
344	    | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
345	) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
346
347CLEANFILES +=	libgcc.map
348
349#-----------------------------------------------------------------------
350#
351# Build additional static libgcc_eh[_p].a libraries.
352#
353libgcc_eh.a:	${EH_OBJS_T}
354	@${ECHO} building static gcc_eh library
355	@rm -f ${.TARGET}
356	@${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
357	${RANLIB} ${.TARGET}
358
359all:	libgcc_eh.a
360
361.if ${MK_PROFILE} != "no"
362libgcc_eh_p.a:	${EH_OBJS_P}
363	@${ECHO} building profiled gcc_eh library
364	@rm -f ${.TARGET}
365	@${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
366	${RANLIB} ${.TARGET}
367all:	libgcc_eh_p.a
368.endif
369
370_libinstall: _lib-eh-install
371
372_lib-eh-install:
373.if ${MK_INSTALLLIB} != "no"
374	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
375		${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
376.endif
377.if ${MK_PROFILE} != "no"
378	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
379		${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
380.endif
381
382CLEANFILES+=	libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
383
384.include <bsd.lib.mk>
385
386.SUFFIXES: .vis .vo
387