Makefile revision 96340 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 96340 2002-05-10 08:54:50Z 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+=	-nostdlib -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.
45
46# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
47# defined as optimized assembly code in LIB1ASMFUNCS.
48.if defined(LIB1ASMFUNCS)
49.for sym in ${LIB1ASMFUNCS}
50LIB2FUNCS_1=	${LIB2FUNCS_1:S/${sym}//g}
51LIB2FUNCS_2=	${LIB2FUNCS_2:S/${sym}//g}
52LIB2_DIVMOD_FUNCS= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
53.endfor
54.endif
55
56SYMS=		${LIB1ASMFUNCS}		\
57		${LIB2FUNCS_1}		\
58		${LIB2FUNCS_2}		\
59		${LIB2_DIVMOD_FUNCS}
60.if ${TARGET_ARCH} == "arm" || ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "sparc64"
61SYMS+=		${FPBIT_FUNCS} ${DPBIT_FUNCS}
62.endif
63SYMS_ST=	${LIB2FUNCS_ST}		\
64		${LIB2ADD_ST}
65OBJS_T=		${SYMS:S/$/.o/}  ${SYMS_ST:S/$/.o/}
66OBJS_P=		${SYMS:S/$/.po/} ${SYMS_ST:S/$/.po/}
67OBJS_S=		${SYMS:S/$/.So/}
68OBJS=		${SYMS:S/$/.o/}
69STATICOBJS=	${SYMS_ST:S/$/.o/}
70SRCS=		${LIB2ADD} ${LIB2ADDEH}
71
72
73
74#---------------------------------------------------------------------------
75#
76# When upgrading GCC, get the following defintions straight from Makefile.in
77#
78
79# Library members defined in libgcc2.c.
80# Variable length limited to 255 charactes when passed to a shell script.
81LIB2FUNCS_1 = _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _ffsdi2 _clz \
82    _cmpdi2 _ucmpdi2 _floatdidf _floatdisf _fixunsdfsi _fixunssfsi \
83    _fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi _fixxfdi _fixunsxfdi
84
85LIB2FUNCS_2 = _floatdixf _fixunsxfsi _fixtfdi _fixunstfdi _floatditf \
86    _clear_cache _trampoline __main _exit _absvsi2 _absvdi2 _addvsi3 \
87    _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors
88
89# Defined in libgcc2.c, included only in the static library.
90LIB2FUNCS_ST = _eprintf _bb __gcc_bcmp
91
92FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
93    _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
94    _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
95    _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
96
97DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
98    _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
99    _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
100    _df_to_sf _thenan_df _df_to_usi _usi_to_df
101
102# These might cause a divide overflow trap and so are compiled with
103# unwinder info.
104LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
105
106MACHMODE_H = machmode.h machmode.def
107
108LIB2ADD = $(LIB2FUNCS_EXTRA)
109LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
110
111# Additional sources to handle exceptions; overridden on ia64.
112LIB2ADDEH = unwind-dw2.c unwind-dw2-fde.c unwind-sjlj.c
113
114#-----------------------------------------------------------------------
115#
116#	Platform specific bits.
117#	When upgrading GCC, get the following defintions from config/<cpu>/t-*
118#
119
120.if ${TARGET_ARCH} == "alpha"
121#	from config/alpha/t-alpha
122LIB2FUNCS_EXTRA = qrnnd.asm
123.endif
124
125.if ${TARGET_ARCH} == "arm"
126#	from config/arm/t-strongarm-elf
127LIB1ASMSRC = arm/lib1funcs.asm
128LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func
129# We want fine grained libraries, so use the new code to build the
130# floating point emulation libraries.
131XXX fix this: NEED_FP_EMULATION set to "yes" with different rules per platform
132.endif
133
134.if ${TARGET_ARCH} == "ia64"
135#	from config/ia64/t-ia64
136LIB1ASMSRC    = ia64/lib1funcs.asm
137LIB1ASMFUNCS  = __divtf3 __divdf3 __divsf3 \
138	__divdi3 __moddi3 __udivdi3 __umoddi3 \
139	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
140	__nonlocal_goto __restore_stack_nonlocal __trampoline
141LIB2ADDEH = unwind-ia64.c unwind-sjlj.c
142.endif
143
144.if ${TARGET_ARCH} == "powerpc"
145#	from config/rs6000/t-ppccomm
146LIB2FUNCS_EXTRA = tramp.S
147# This one can't end up in shared libgcc
148LIB2FUNCS_STATIC_EXTRA = eabi.S
149# We want fine grained libraries, so use the new code to build the
150# floating point emulation libraries.
151OBJS+=	dp-bit.o fp-bit.o
152.endif
153
154.if ${TARGET_ARCH} == "sparc64"
155#	from config/sparc/t-elf
156# We want fine grained libraries, so use the new code to build the
157# floating point emulation libraries.
158LIB1ASMSRC = sparc/lb1spc.asm
159LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
160OBJS+=	dp-bit.o fp-bit.o
161.endif
162
163dp-bit.o: config/fp-bit.c
164	${XCC} -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
165
166dp-bit.So: config/fp-bit.c
167	${XCC} ${PICFLAG} -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
168
169dp-bit.po: config/fp-bit.c
170	${XCC} -p -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
171
172fp-bit.o: config/fp-bit.c
173	${XCC} -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
174
175fp-bit.So: config/fp-bit.c
176	${XCC} ${PICFLAG} -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
177
178fp-bit.po: config/fp-bit.c
179	${XCC} -p -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
180
181#-----------------------------------------------------------------------
182
183COMMONHDRS=	tconfig.h
184SRCS+=		${COMMONHDRS}
185CLEANFILES+=	${COMMONHDRS}
186
187tconfig.h: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
188	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
189
190${OBJS} beforedepend: ${COMMONHDRS}
191
192${OBJS_T}: libgcc2.c
193	${XCC} -c ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
194	@${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
195	@mv ${.TARGET}.tmp ${.TARGET}
196
197.if !defined(NOPIC)
198${OBJS_S}: libgcc2.c
199	${XCC} -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
200	@${LD} -o ${.TARGET}.tmp -x -r ${.TARGET}
201	@mv ${.TARGET}.tmp ${.TARGET}
202.endif
203
204.if !defined(NOPROFILE)
205${OBJS_P}: libgcc2.c
206	${XCC} -c -p ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
207	@${LD} -o ${.TARGET}.tmp -X -r ${.TARGET}
208	@mv ${.TARGET}.tmp ${.TARGET}
209.endif
210
211.include <bsd.lib.mk>
212