Makefile revision 96343 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 96343 2002-05-10 09:32:39Z obrien $
2
3TARGET_ARCH?=	${MACHINE_ARCH}
4
5GCCDIR=	${.CURDIR}/../../../contrib/gcc
6.PATH: ${GCCDIR}/config/${TARGET_ARCH} ${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
47# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
48# defined as optimized assembly code in LIB1ASMFUNCS.
49.if defined(LIB1ASMFUNCS)
50.for sym in ${LIB1ASMFUNCS}
51LIB2FUNCS_1=	${LIB2FUNCS_1:S/${sym}//g}
52LIB2FUNCS_2=	${LIB2FUNCS_2:S/${sym}//g}
53LIB2_DIVMOD_FUNCS= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
54.endfor
55.endif
56
57SYMS=		${LIB1ASMFUNCS}		\
58		${LIB2FUNCS_1}		\
59		${LIB2FUNCS_2}		\
60		${LIB2_DIVMOD_FUNCS}
61.if ${TARGET_ARCH} == "arm" || ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "sparc64"
62SYMS+=		${FPBIT_FUNCS} ${DPBIT_FUNCS}
63.endif
64SYMS_ST=	${LIB2FUNCS_ST}		\
65		${LIB2ADD_ST}
66OBJS_T=		${SYMS:S/$/.o/}  ${SYMS_ST:S/$/.o/}
67OBJS_P=		${SYMS:S/$/.po/} ${SYMS_ST:S/$/.po/}
68OBJS_S=		${SYMS:S/$/.So/}
69OBJS=		${SYMS:S/$/.o/}
70STATICOBJS=	${SYMS_ST:S/$/.o/}
71SRCS=		${LIB2ADD} ${LIB2ADDEH}
72
73
74
75#---------------------------------------------------------------------------
76#
77# When upgrading GCC, get the following defintions straight from Makefile.in
78#
79
80# Library members defined in libgcc2.c.
81# Variable length limited to 255 charactes when passed to a shell script.
82LIB2FUNCS_1 = _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _ffsdi2 _clz \
83    _cmpdi2 _ucmpdi2 _floatdidf _floatdisf _fixunsdfsi _fixunssfsi \
84    _fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi _fixxfdi _fixunsxfdi
85
86LIB2FUNCS_2 = _floatdixf _fixunsxfsi _fixtfdi _fixunstfdi _floatditf \
87    _clear_cache _trampoline __main _exit _absvsi2 _absvdi2 _addvsi3 \
88    _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors
89
90# Defined in libgcc2.c, included only in the static library.
91LIB2FUNCS_ST = _eprintf _bb __gcc_bcmp
92
93FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
94    _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
95    _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
96    _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
97
98DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
99    _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
100    _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
101    _df_to_sf _thenan_df _df_to_usi _usi_to_df
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
107MACHMODE_H = machmode.h machmode.def
108
109LIB2ADD = $(LIB2FUNCS_EXTRA)
110LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
111
112# Additional sources to handle exceptions; overridden on ia64.
113LIB2ADDEH = unwind-dw2.c unwind-dw2-fde.c unwind-sjlj.c
114
115#-----------------------------------------------------------------------
116#
117#	Platform specific bits.
118#	When upgrading GCC, get the following defintions from config/<cpu>/t-*
119#
120
121.if ${TARGET_ARCH} == "alpha"
122#	from config/alpha/t-alpha
123LIB2FUNCS_EXTRA = qrnnd.asm
124.endif
125
126.if ${TARGET_ARCH} == "arm"
127#	from config/arm/t-strongarm-elf
128LIB1ASMSRC = arm/lib1funcs.asm
129LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func
130# We want fine grained libraries, so use the new code to build the
131# floating point emulation libraries.
132XXX fix this: NEED_FP_EMULATION set to "yes" with different rules per platform
133.endif
134
135.if ${TARGET_ARCH} == "ia64"
136#	from config/ia64/t-ia64
137LIB1ASMSRC    = ia64/lib1funcs.asm
138LIB1ASMFUNCS  = __divtf3 __divdf3 __divsf3 \
139	__divdi3 __moddi3 __udivdi3 __umoddi3 \
140	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
141	__nonlocal_goto __restore_stack_nonlocal __trampoline
142LIB2ADDEH = unwind-ia64.c unwind-sjlj.c
143.endif
144
145.if ${TARGET_ARCH} == "powerpc"
146#	from config/rs6000/t-ppccomm
147LIB2FUNCS_EXTRA = tramp.S
148# This one can't end up in shared libgcc
149LIB2FUNCS_STATIC_EXTRA = eabi.S
150# We want fine grained libraries, so use the new code to build the
151# floating point emulation libraries.
152OBJS+=	dp-bit.o fp-bit.o
153.endif
154
155.if ${TARGET_ARCH} == "sparc64"
156#	from config/sparc/t-elf
157# We want fine grained libraries, so use the new code to build the
158# floating point emulation libraries.
159LIB1ASMSRC = sparc/lb1spc.asm
160LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
161OBJS+=	dp-bit.o fp-bit.o
162.endif
163
164dp-bit.o: config/fp-bit.c
165	${XCC} -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
166
167dp-bit.So: config/fp-bit.c
168	${XCC} ${PICFLAG} -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
169
170dp-bit.po: config/fp-bit.c
171	${XCC} -p -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
172
173fp-bit.o: config/fp-bit.c
174	${XCC} -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
175
176fp-bit.So: config/fp-bit.c
177	${XCC} ${PICFLAG} -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
178
179fp-bit.po: config/fp-bit.c
180	${XCC} -p -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
181
182#-----------------------------------------------------------------------
183
184COMMONHDRS=	tconfig.h
185SRCS+=		${COMMONHDRS}
186CLEANFILES+=	${COMMONHDRS}
187
188tconfig.h: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
189	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
190
191${OBJS} beforedepend: ${COMMONHDRS}
192
193${OBJS_T}: libgcc2.c
194	${XCC} -c ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
195	@${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
196	@mv ${.TARGET}.tmp ${.TARGET}
197
198.if !defined(NOPIC)
199${OBJS_S}: libgcc2.c
200	${XCC} -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
201	@${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
202	@mv ${.TARGET}.tmp ${.TARGET}
203.endif
204
205.if !defined(NOPROFILE)
206${OBJS_P}: libgcc2.c
207	${XCC} -c -p ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
208	@${LD} -o ${.TARGET}.tmp -X -r ${.TARGET}
209	@mv ${.TARGET}.tmp ${.TARGET}
210.endif
211
212.include <bsd.lib.mk>
213