Makefile revision 96799 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 96799 2002-05-17 08:59:13Z peter $
2
3.include "${.CURDIR}/../../usr.bin/cc/Makefile.tgt"
4
5GCCDIR=	${.CURDIR}/../../../contrib/gcc
6.PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}
7
8# allow to be overridden for the a.out case
9.if !defined(LIB) || ${LIB} != "gcc_r"
10LIB=	gcc
11.endif
12
13#SHLIB_MAJOR=	1
14#SHLIB_MINOR=	0
15
16.if ${OBJFORMAT} == aout
17# Install libgcc_pic.a, since ld.so uses it.
18INSTALL_PIC_ARCHIVE=  yes
19.endif
20
21#
22# XXX This is a hack, but it seems to work.
23# libgcc2.a is meant to be compiled by *this* version of gcc.
24#
25# Normally, this does not make any difference, since we only have gcc, but
26# when bootstrapping from gcc-2.6.3, we have to use the freshly built 2.7.2
27# compiler for some of the libgcc2.c __attribute__ stuff.
28#
29# We now depend on a bootstrap pass (normally in `make world') to build
30# and install the new version of gcc before we get here.  This makes
31# finding the new version (XCC) easy but may break finding the old version
32# (CC).
33#
34XCC=	${CC}
35XCXX=	${CXX}
36
37CFLAGS+=	-fexceptions
38CFLAGS+=	-DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
39		-DFINE_GRAINED_LIBRARIES
40.if ${OBJFORMAT} != aout
41CFLAGS+=	-D_PTHREADS -DGTHREAD_USE_WEAK
42.endif
43CFLAGS+=	-I${.CURDIR}/../../usr.bin/cc/cc_tools \
44		-I${GCCDIR}/config -I${GCCDIR} -I.
45LDFLAGS=	-nostdlib
46
47OBJS=		# added to below in various ways depending on TARGET_ARCH
48
49#---------------------------------------------------------------------------
50#
51# When upgrading GCC, get the following defintions straight from Makefile.in
52#
53
54# Library members defined in libgcc2.c.
55# Variable length limited to 255 charactes when passed to a shell script.
56LIB2FUNCS_1 = _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _ffsdi2 _clz \
57    _cmpdi2 _ucmpdi2 _floatdidf _floatdisf _fixunsdfsi _fixunssfsi \
58    _fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi _fixxfdi _fixunsxfdi
59
60LIB2FUNCS_2 = _floatdixf _fixunsxfsi _fixtfdi _fixunstfdi _floatditf \
61    _clear_cache _trampoline __main _exit _absvsi2 _absvdi2 _addvsi3 \
62    _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors
63
64# Defined in libgcc2.c, included only in the static library.
65LIB2FUNCS_ST = _eprintf _bb __gcc_bcmp
66
67FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
68    _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
69    _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
70    _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
71
72DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
73    _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
74    _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
75    _df_to_sf _thenan_df _df_to_usi _usi_to_df
76
77# These might cause a divide overflow trap and so are compiled with
78# unwinder info.
79LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
80
81MACHMODE_H = machmode.h machmode.def
82
83LIB2ADD = $(LIB2FUNCS_EXTRA)
84LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
85
86# Additional sources to handle exceptions; overridden on ia64.
87LIB2ADDEH = unwind-dw2.c unwind-dw2-fde.c unwind-sjlj.c
88
89#-----------------------------------------------------------------------
90#
91#	Platform specific bits.
92#	When upgrading GCC, get the following defintions from config/<cpu>/t-*
93#
94
95.if ${TARGET_ARCH} == "alpha"
96#	from config/alpha/t-alpha
97LIB2FUNCS_EXTRA = qrnnd.asm
98.endif
99
100.if ${TARGET_ARCH} == "arm"
101#	from config/arm/t-strongarm-elf
102LIB1ASMSRC = arm/lib1funcs.asm
103LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func
104# We want fine grained libraries, so use the new code to build the
105# floating point emulation libraries.
106XXX fix this: NEED_FP_EMULATION set to "yes" with different rules per platform
107.endif
108
109.if ${TARGET_ARCH} == "ia64"
110#	from config/ia64/t-ia64
111LIB1ASMSRC    = ia64/lib1funcs.asm
112LIB1ASMFUNCS  = __divtf3 __divdf3 __divsf3 \
113	__divdi3 __moddi3 __udivdi3 __umoddi3 \
114	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
115	__nonlocal_goto __restore_stack_nonlocal __trampoline
116LIB2ADDEH = unwind-ia64.c unwind-sjlj.c
117.endif
118
119.if ${TARGET_ARCH} == "powerpc"
120#	from config/rs6000/t-ppccomm
121LIB2FUNCS_EXTRA = tramp.asm
122# This one can't end up in shared libgcc
123LIB2FUNCS_STATIC_EXTRA = eabi.asm
124# We want fine grained libraries, so use the new code to build the
125# floating point emulation libraries.
126OBJS+=	dp-bit.o fp-bit.o
127.endif
128
129.if ${TARGET_ARCH} == "sparc64"
130#	from config/sparc/t-elf
131# We want fine grained libraries, so use the new code to build the
132# floating point emulation libraries.
133LIB1ASMSRC = lb1spc.asm
134LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
135OBJS+=	dp-bit.o fp-bit.o
136.endif
137
138dp-bit.o: config/fp-bit.c
139	${XCC} -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
140
141dp-bit.So: config/fp-bit.c
142	${XCC} ${PICFLAG} -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
143
144dp-bit.po: config/fp-bit.c
145	${XCC} -p -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
146
147fp-bit.o: config/fp-bit.c
148	${XCC} -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
149
150fp-bit.So: config/fp-bit.c
151	${XCC} ${PICFLAG} -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
152
153fp-bit.po: config/fp-bit.c
154	${XCC} -p -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
155
156#-----------------------------------------------------------------------
157
158# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
159# defined as optimized assembly code in LIB1ASMFUNCS.
160.if defined(LIB1ASMFUNCS)
161.for sym in ${LIB1ASMFUNCS}
162LIB2FUNCS_1:=	${LIB2FUNCS_1:S/${sym}//g}
163LIB2FUNCS_2:=	${LIB2FUNCS_2:S/${sym}//g}
164LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
165.endfor
166.endif
167
168ASM_T=		${LIB1ASMFUNCS:S/$/.o/}
169ASM_P=		${LIB1ASMFUNCS:S/$/.po/}
170ASM_S=		${LIB1ASMFUNCS:S/$/.So/}
171
172SYMS=		${LIB2FUNCS_1}		\
173		${LIB2FUNCS_2}		\
174		${LIB2_DIVMOD_FUNCS}
175.if ${TARGET_ARCH} == "arm" || ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "sparc64"
176SYMS+=		${FPBIT_FUNCS} ${DPBIT_FUNCS}
177.endif
178SYMS_ST=	${LIB2FUNCS_ST}		\
179		${LIB2ADD_ST}
180OBJS+=		${SYMS:S/$/.o/} ${LIB1ASMFUNCS:S/$/.o/}
181OBJS_T=		${SYMS:S/$/.o/}  ${SYMS_ST:S/$/.o/}
182OBJS_P=		${SYMS:S/$/.po/} ${SYMS_ST:S/$/.po/}
183OBJS_S=		${SYMS:S/$/.So/}
184STATICOBJS=	${SYMS_ST:S/$/.o/}
185SRCS=		${LIB2ADD} ${LIB2ADDEH}
186
187COMMONHDRS=	tconfig.h
188SRCS+=		${COMMONHDRS}
189CLEANFILES+=	${COMMONHDRS}
190
191tconfig.h: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
192	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
193
194${OBJS} beforedepend: ${COMMONHDRS}
195
196${OBJS_T}: libgcc2.c
197	${XCC} -c ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
198	@${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
199	@mv ${.TARGET}.tmp ${.TARGET}
200
201.if !defined(NOPIC)
202${OBJS_S}: libgcc2.c
203	${XCC} -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
204	@${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
205	@mv ${.TARGET}.tmp ${.TARGET}
206.endif
207
208.if !defined(NOPROFILE)
209${OBJS_P}: libgcc2.c
210	${XCC} -c -p ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
211	@${LD} -o ${.TARGET}.tmp -X -r ${.TARGET}
212	@mv ${.TARGET}.tmp ${.TARGET}
213.endif
214
215.if defined(LIB1ASMSRC)
216${ASM_T}: ${LIB1ASMSRC}
217	${XCC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${GCCDIR}/config/${LIB1ASMSRC}
218	@${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
219	@mv ${.TARGET}.tmp ${.TARGET}
220
221.if !defined(NOPIC)
222${ASM_S}: ${LIB1ASMSRC}
223	${XCC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${GCCDIR}/config/${LIB1ASMSRC}
224	@${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
225	@mv ${.TARGET}.tmp ${.TARGET}
226.endif
227
228.if !defined(NOPROFILE)
229${ASM_P}: ${LIB1ASMSRC}
230	${XCC} -x assembler-with-cpp -c -p ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${GCCDIR}/config/${TARGET_ARCH}/${LIB1ASMSRC}
231	@${LD} -o ${.TARGET}.tmp -X -r ${.TARGET}
232	@mv ${.TARGET}.tmp ${.TARGET}
233.endif
234.endif
235
236.include <bsd.lib.mk>
237