Makefile revision 272350 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 272350 2014-10-01 08:26:51Z andrew $
2
3GCCDIR=	${.CURDIR}/../../../contrib/gcc
4GCCLIB=	${.CURDIR}/../../../contrib/gcclibs
5
6SHLIB_NAME=	libgcc_s.so.1
7SHLIBDIR?=	/lib
8
9.include <src.opts.mk>
10#
11# libgcc is linked in last and thus cannot depend on ssp symbols coming
12# from earlier libraries. Disable stack protection for this library.
13#
14MK_SSP=	no
15
16.include "${.CURDIR}/../../usr.bin/cc/Makefile.tgt"
17
18.if ${TARGET_CPUARCH} == "arm"
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
31DPADD+=		${LIBC}
32LDADD+=		-lc
33
34OBJS=		# added to below in various ways depending on TARGET_CPUARCH
35
36#---------------------------------------------------------------------------
37#
38# Library members defined in libgcc2.c.
39# When upgrading GCC, obtain the following list from mklibgcc.in
40#
41LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
42	_cmpdi2 _ucmpdi2 \
43	_enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
44	_addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
45	_ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
46	_popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
47	_powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
48	_divxc3 _divtc3 _bswapsi2 _bswapdi2
49.if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm"
50LIB2FUNCS+= _clear_cache
51.endif
52
53# The floating-point conversion routines that involve a single-word integer.
54.for mode in sf df xf
55LIB2FUNCS+= _fixuns${mode}si
56.endfor
57
58# Likewise double-word routines.
59.if ${TARGET_CPUARCH} != "arm"
60# These are implemented in an ARM specific file but will not be filtered out
61.for mode in sf df xf tf
62LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
63LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
64.endfor
65.endif
66
67LIB2ADD = $(LIB2FUNCS_EXTRA)
68LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
69
70# Additional sources to handle exceptions; overridden by targets as needed.
71LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
72	unwind-c.c
73LIB2ADDEHSTATIC = $(LIB2ADDEH)
74LIB2ADDEHSHARED = $(LIB2ADDEH)
75
76# List of extra C and assembler files to add to static and shared libgcc2.
77# Assembler files should have names ending in `.asm'.
78LIB2FUNCS_EXTRA =
79
80# List of extra C and assembler files to add to static libgcc2.
81# Assembler files should have names ending in `.asm'.
82LIB2FUNCS_STATIC_EXTRA =
83
84# Defined in libgcc2.c, included only in the static library.
85# KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
86# built on any of our platforms.
87LIB2FUNCS_ST = _eprintf __gcc_bcmp
88
89FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
90    _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
91    _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
92    _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
93
94DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
95    _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
96    _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
97    _df_to_sf _thenan_df _df_to_usi _usi_to_df
98
99TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
100    _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
101    _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
102    _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
103
104# These might cause a divide overflow trap and so are compiled with
105# unwinder info.
106LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
107
108#-----------------------------------------------------------------------
109#
110#	Platform specific bits.
111#	When upgrading GCC, get the following definitions from config/<cpu>/t-*
112#
113.if ${TARGET_CPUARCH} == "arm"
114#	from config/arm/t-strongarm-elf
115CFLAGS+=	-Dinhibit_libc -fno-inline
116CFLAGS.clang+=	-fheinous-gnu-extensions
117
118LIB1ASMSRC =	lib1funcs.asm
119LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
120LIB2ADDEH =	unwind-arm.c libunwind.S pr-support.c unwind-c.c
121# Some compilers generate __aeabi_ functions libgcc_s is missing
122DPADD+=		${LIBCOMPILER_RT}
123LDADD+=		-lcompiler_rt
124.endif
125
126.if ${TARGET_CPUARCH} == mips
127LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
128# ABIs other than o32 need this
129.if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
130LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
131LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
132LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
133LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
134.endif
135.endif
136
137.if ${TARGET_ARCH} == "powerpc"
138#	from config/rs6000/t-ppccomm
139LIB2FUNCS_EXTRA = tramp.asm
140LIB2FUNCS_STATIC_EXTRA = eabi.asm
141.endif
142
143.if ${TARGET_ARCH} == "powerpc64"
144#	from config/rs6000/t-ppccomm
145LIB2FUNCS_EXTRA = tramp.asm
146.endif
147
148.if ${TARGET_CPUARCH} == "sparc64"
149#	from config/sparc/t-elf
150LIB1ASMSRC =   lb1spc.asm
151LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
152.endif
153
154#-----------------------------------------------------------------------
155
156# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
157# defined as optimized assembly code in LIB1ASMFUNCS.
158.if defined(LIB1ASMFUNCS)
159.for sym in ${LIB1ASMFUNCS}
160LIB2FUNCS:=	${LIB2FUNCS:S/${sym}//g}
161LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
162.endfor
163.endif
164
165COMMONHDRS=	tm.h tconfig.h options.h unwind.h gthr-default.h
166
167#-----------------------------------------------------------------------
168#
169# Helpful shortcuts for compiler invocations.
170#
171HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
172CC_T =	${CC} -c ${CFLAGS} ${HIDE} -fPIC
173CC_P =	${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
174CC_S =	${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
175
176#-----------------------------------------------------------------------
177#
178# Functions from libgcc2.c
179#
180STD_CFLAGS =
181DIV_CFLAGS =	-fexceptions -fnon-call-exceptions
182
183STD_FUNCS =	${LIB2FUNCS}
184DIV_FUNCS =	${LIB2_DIVMOD_FUNCS}
185
186STD_CFILE =	libgcc2.c
187DIV_CFILE =	libgcc2.c
188
189OBJ_GRPS =	STD DIV
190
191#-----------------------------------------------------------------------
192#
193# Floating point emulation functions
194#
195.if ${TARGET_CPUARCH} == "armNOT_YET" || \
196    ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
197
198FPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES -DFLOAT
199DPBIT_CFLAGS =	-DFINE_GRAINED_LIBRARIES
200
201FPBIT_CFILE =	config/fp-bit.c
202DPBIT_CFILE =	config/fp-bit.c
203
204OBJ_GRPS +=	FPBIT DPBIT
205.endif
206
207#-----------------------------------------------------------------------
208#
209# Generic build rules for object groups defined above
210#
211.for T in ${OBJ_GRPS}
212${T}_OBJS_T =	${${T}_FUNCS:S/$/.o/}
213${T}_OBJS_P =	${${T}_FUNCS:S/$/.po/}
214${T}_OBJS_S =	${${T}_FUNCS:S/$/.So/}
215OBJS +=		${${T}_FUNCS:S/$/.o/}
216
217${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
218	${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
219${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
220	${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
221${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
222	${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
223.endfor
224
225#-----------------------------------------------------------------------
226#
227# Extra objects coming from separate files
228#
229.if !empty(LIB2ADD)
230OBJS  +=	${LIB2ADD:R:S/$/.o/}
231SOBJS +=	${LIB2ADD:R:S/$/.So/}
232POBJS +=	${LIB2ADD:R:S/$/.po/}
233.endif
234
235#-----------------------------------------------------------------------
236#
237# Objects that should be in static library only.
238#
239SYMS_ST =	${LIB2FUNCS_ST}	${LIB2ADD_ST}
240STAT_OBJS_T = 	${SYMS_ST:S/$/.o/}
241STAT_OBJS_P = 	${SYMS_ST:S/$/.po/}
242STATICOBJS  =	${SYMS_ST:S/$/.o/}
243
244${STAT_OBJS_T}:	${STD_CFILE} ${COMMONHDRS}
245	${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
246${STAT_OBJS_P}:	${STD_CFILE} ${COMMONHDRS}
247	${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
248
249#-----------------------------------------------------------------------
250#
251# Assembler files.
252#
253.if defined(LIB1ASMSRC)
254ASM_T =		${LIB1ASMFUNCS:S/$/.o/}
255ASM_P =		${LIB1ASMFUNCS:S/$/.po/}
256ASM_S =		${LIB1ASMFUNCS:S/$/.So/}
257ASM_V =		${LIB1ASMFUNCS:S/$/.vis/}
258OBJS +=		${LIB1ASMFUNCS:S/$/.o/}
259
260${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
261	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
262	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
263${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
264	${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
265	    -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
266${ASM_S}: ${LIB1ASMSRC}
267	${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
268	    -o ${.TARGET} ${.ALLSRC:N*.h}
269${ASM_V}: ${LIB1ASMSRC}
270	${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
271	    -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
272	( ${NM} -pg ${.PREFIX}.vo | \
273		awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
274	) > ${.TARGET}
275
276CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
277.endif
278
279#-----------------------------------------------------------------------
280#
281# Exception handling / unwinding support.
282#
283EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
284EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
285EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
286EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
287SOBJS    += ${EH_OBJS_S}
288
289.for _src in ${LIB2ADDEHSTATIC}
290${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
291	${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
292${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
293	${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
294.endfor
295.for _src in ${LIB2ADDEHSHARED}
296${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
297	${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
298.endfor
299
300
301#-----------------------------------------------------------------------
302#
303# Generated headers
304#
305${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
306	(cd ${.CURDIR}; ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET})
307
308CLEANFILES += ${COMMONHDRS}
309CLEANFILES += cs-*.h option*
310
311#-----------------------------------------------------------------------
312#
313# Build symbol version map
314#
315SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
316SHLIB_MKMAP_OPTS =
317SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
318.if ${TARGET_CPUARCH} == "arm"
319SHLIB_MAPFILES  += ${GCCDIR}/config/arm/libgcc-bpabi.ver
320.endif
321VERSION_MAP      = libgcc.map
322
323libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
324	(  ${NM} -pg ${SOBJS};echo %% ; \
325	  cat ${SHLIB_MAPFILES} \
326	    | sed -e '/^[   ]*#/d' \
327	          -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
328	    | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
329	) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
330
331CLEANFILES +=	libgcc.map
332
333#-----------------------------------------------------------------------
334#
335# Build additional static libgcc_eh[_p].a libraries.
336#
337libgcc_eh.a:	${EH_OBJS_T}
338	@${ECHO} building static gcc_eh library
339	@rm -f ${.TARGET}
340	@${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
341	${RANLIB} ${RANLIBFLAGS} ${.TARGET}
342
343all:	libgcc_eh.a
344
345.if ${MK_PROFILE} != "no"
346libgcc_eh_p.a:	${EH_OBJS_P}
347	@${ECHO} building profiled gcc_eh library
348	@rm -f ${.TARGET}
349	@${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
350	${RANLIB} ${RANLIBFLAGS} ${.TARGET}
351all:	libgcc_eh_p.a
352.endif
353
354_libinstall: _lib-eh-install
355
356_lib-eh-install:
357.if ${MK_INSTALLLIB} != "no"
358	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
359		${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
360.endif
361.if ${MK_PROFILE} != "no"
362	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
363		${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
364.endif
365
366CLEANFILES+=	libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
367
368.include <bsd.lib.mk>
369
370.SUFFIXES: .vis .vo
371