Makefile revision 260096 
1# $FreeBSD: stable/10/gnu/lib/libgcc/Makefile 260096 2013-12-30 20:15:46Z dim $
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
115CFLAGS.clang+=	-fheinous-gnu-extensions
116
117LIB1ASMSRC =	lib1funcs.asm
118LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
119.if ${MK_ARM_EABI} != "no"
120LIB2ADDEH =	unwind-arm.c libunwind.S pr-support.c unwind-c.c
121# Some compilers generate __aeabi_ functions libgcc_s is missing
122DPADD+=		${LIBGCC}
123LDADD+=		-lgcc
124.else
125LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
126.endif
127.endif
128
129.if ${TARGET_CPUARCH} == mips
130LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
131# ABIs other than o32 need this
132.if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
133LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
134LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
135LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
136LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
137.endif
138.endif
139
140.if ${TARGET_CPUARCH} == "ia64"
141#	from config/ia64/t-ia64
142LIB1ASMSRC   = lib1funcs.asm
143LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
144	__divdi3 __moddi3 __udivdi3 __umoddi3 \
145	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
146	__nonlocal_goto __restore_stack_nonlocal __trampoline \
147	_fixtfdi _fixunstfdi _floatditf
148LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
149.endif
150
151.if ${TARGET_ARCH} == "powerpc"
152#	from config/rs6000/t-ppccomm
153LIB2FUNCS_EXTRA = tramp.asm
154LIB2FUNCS_STATIC_EXTRA = eabi.asm
155.endif
156
157.if ${TARGET_ARCH} == "powerpc64"
158#	from config/rs6000/t-ppccomm
159LIB2FUNCS_EXTRA = tramp.asm
160.endif
161
162.if ${TARGET_CPUARCH} == "sparc64"
163#	from config/sparc/t-elf
164LIB1ASMSRC =   lb1spc.asm
165LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
166.endif
167
168#-----------------------------------------------------------------------
169
170# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
171# defined as optimized assembly code in LIB1ASMFUNCS.
172.if defined(LIB1ASMFUNCS)
173.for sym in ${LIB1ASMFUNCS}
174LIB2FUNCS:=	${LIB2FUNCS:S/${sym}//g}
175LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
176.endfor
177.endif
178
179COMMONHDRS=	tm.h tconfig.h options.h unwind.h gthr-default.h
180
181#-----------------------------------------------------------------------
182#
183# Helpful shortcuts for compiler invocations.
184#
185HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
186CC_T =	${CC} -c ${CFLAGS} ${HIDE} -fPIC
187CC_P =	${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
188CC_S =	${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
189
190#-----------------------------------------------------------------------
191#
192# Functions from libgcc2.c
193#
194STD_CFLAGS =
195DIV_CFLAGS =	-fexceptions -fnon-call-exceptions
196
197STD_FUNCS =	${LIB2FUNCS}
198DIV_FUNCS =	${LIB2_DIVMOD_FUNCS}
199
200STD_CFILE =	libgcc2.c
201DIV_CFILE =	libgcc2.c
202
203OBJ_GRPS =	STD DIV
204
205#-----------------------------------------------------------------------
206#
207# Floating point emulation functions
208#
209.if ${TARGET_CPUARCH} == "armNOT_YET" || \
210    ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
211
212FPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES -DFLOAT
213DPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES
214
215FPBIT_CFILE =	config/fp-bit.c
216DPBIT_CFILE =	config/fp-bit.c
217
218OBJ_GRPS +=	FPBIT DPBIT
219.endif
220
221#-----------------------------------------------------------------------
222#
223# Generic build rules for object groups defined above
224#
225.for T in ${OBJ_GRPS}
226${T}_OBJS_T =	${${T}_FUNCS:S/$/.o/}
227${T}_OBJS_P =	${${T}_FUNCS:S/$/.po/}
228${T}_OBJS_S =	${${T}_FUNCS:S/$/.So/}
229OBJS +=		${${T}_FUNCS:S/$/.o/}
230
231${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
232	${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
233${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
234	${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
235${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
236	${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
237.endfor
238
239#-----------------------------------------------------------------------
240#
241# Extra objects coming from separate files
242#
243.if !empty(LIB2ADD)
244OBJS  +=	${LIB2ADD:R:S/$/.o/}
245SOBJS +=	${LIB2ADD:R:S/$/.So/}
246POBJS +=	${LIB2ADD:R:S/$/.po/}
247.endif
248
249#-----------------------------------------------------------------------
250#
251# Objects that should be in static library only.
252#
253SYMS_ST =	${LIB2FUNCS_ST}	${LIB2ADD_ST}
254STAT_OBJS_T = 	${SYMS_ST:S/$/.o/}
255STAT_OBJS_P = 	${SYMS_ST:S/$/.po/}
256STATICOBJS  =	${SYMS_ST:S/$/.o/}
257
258${STAT_OBJS_T}:	${STD_CFILE} ${COMMONHDRS}
259	${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
260${STAT_OBJS_P}:	${STD_CFILE} ${COMMONHDRS}
261	${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
262
263#-----------------------------------------------------------------------
264#
265# Assembler files.
266#
267.if defined(LIB1ASMSRC)
268ASM_T =		${LIB1ASMFUNCS:S/$/.o/}
269ASM_P =		${LIB1ASMFUNCS:S/$/.po/}
270ASM_S =		${LIB1ASMFUNCS:S/$/.So/}
271ASM_V =		${LIB1ASMFUNCS:S/$/.vis/}
272OBJS +=		${LIB1ASMFUNCS:S/$/.o/}
273
274${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
275	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
276	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
277${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
278	${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
279	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
280${ASM_S}: ${LIB1ASMSRC}
281	${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
282	    -o ${.TARGET} ${.ALLSRC:N*.h}
283${ASM_V}: ${LIB1ASMSRC}
284	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
285	    -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
286	( ${NM} -pg ${.PREFIX}.vo | \
287		awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
288	) > ${.TARGET}
289
290CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
291.endif
292
293#-----------------------------------------------------------------------
294#
295# Exception handling / unwinding support.
296#
297EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
298EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
299EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
300EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
301SOBJS    += ${EH_OBJS_S}
302
303.for _src in ${LIB2ADDEHSTATIC}
304${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
305	${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
306${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
307	${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
308.endfor
309.for _src in ${LIB2ADDEHSHARED}
310${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
311	${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
312.endfor
313
314
315#-----------------------------------------------------------------------
316#
317# Generated headers
318#
319${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
320	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
321
322CLEANFILES += ${COMMONHDRS}
323CLEANFILES += cs-*.h option*
324
325#-----------------------------------------------------------------------
326#
327# Build symbol version map
328#
329SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
330SHLIB_MKMAP_OPTS =
331SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
332.if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
333SHLIB_MAPFILES  += ${GCCDIR}/config/arm/libgcc-bpabi.ver
334.endif
335VERSION_MAP      = libgcc.map
336
337libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
338	(  ${NM} -pg ${SOBJS};echo %% ; \
339	  cat ${SHLIB_MAPFILES} \
340	    | sed -e '/^[   ]*#/d' \
341	          -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
342	    | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
343	) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
344
345CLEANFILES +=	libgcc.map
346
347#-----------------------------------------------------------------------
348#
349# Build additional static libgcc_eh[_p].a libraries.
350#
351libgcc_eh.a:	${EH_OBJS_T}
352	@${ECHO} building static gcc_eh library
353	@rm -f ${.TARGET}
354	@${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
355	${RANLIB} ${.TARGET}
356
357all:	libgcc_eh.a
358
359.if ${MK_PROFILE} != "no"
360libgcc_eh_p.a:	${EH_OBJS_P}
361	@${ECHO} building profiled gcc_eh library
362	@rm -f ${.TARGET}
363	@${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
364	${RANLIB} ${.TARGET}
365all:	libgcc_eh_p.a
366.endif
367
368_libinstall: _lib-eh-install
369
370_lib-eh-install:
371.if ${MK_INSTALLLIB} != "no"
372	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
373		${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
374.endif
375.if ${MK_PROFILE} != "no"
376	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
377		${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
378.endif
379
380CLEANFILES+=	libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
381
382.include <bsd.lib.mk>
383
384.SUFFIXES: .vis .vo
385