Makefile revision 117425 
1# $FreeBSD: head/gnu/lib/libgcc/Makefile 117425 2003-07-11 05:29:11Z kan $
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
15# We need to install libgcc_pic.a as well, for use by shared libs.
16INSTALL_PIC_ARCHIVE=    yes     
17
18#
19# XXX This is a hack, but it seems to work.
20# libgcc2.a is meant to be compiled by *this* version of gcc.
21#
22# Normally, this does not make any difference, since we only have gcc, but
23# when bootstrapping from gcc-2.6.3, we have to use the freshly built 2.7.2
24# compiler for some of the libgcc2.c __attribute__ stuff.
25#
26# We now depend on a bootstrap pass (normally in `make world') to build
27# and install the new version of gcc before we get here.  This makes
28# finding the new version (XCC) easy but may break finding the old version
29# (CC).
30#
31XCC=	${CC}
32XCXX=	${CXX}
33
34CFLAGS+=	-fexceptions
35CFLAGS+=	-DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
36		-DFINE_GRAINED_LIBRARIES
37CFLAGS+=	-D_PTHREADS -DGTHREAD_USE_WEAK
38CFLAGS+=	-I${.CURDIR}/../../usr.bin/cc/cc_tools \
39		-I${GCCDIR}/config -I${GCCDIR} -I.
40
41OBJS=		# added to below in various ways depending on TARGET_ARCH
42
43#---------------------------------------------------------------------------
44#
45# When upgrading GCC, get the following defintions straight from Makefile.in
46#
47
48# Library members defined in libgcc2.c.
49# Variable length limited to 255 charactes when passed to a shell script.
50LIB2FUNCS_1 = _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _ffsdi2 _clz \
51    _cmpdi2 _ucmpdi2 _floatdidf _floatdisf _fixunsdfsi _fixunssfsi \
52    _fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi _fixxfdi _fixunsxfdi
53
54LIB2FUNCS_2 = _floatdixf _fixunsxfsi _fixtfdi _fixunstfdi _floatditf \
55    _clear_cache _trampoline __main _exit _absvsi2 _absvdi2 _addvsi3 \
56    _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors
57
58# Defined in libgcc2.c, included only in the static library.
59LIB2FUNCS_ST = _eprintf _bb __gcc_bcmp
60
61FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
62    _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
63    _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
64    _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
65
66DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
67    _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
68    _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
69    _df_to_sf _thenan_df _df_to_usi _usi_to_df
70
71# These might cause a divide overflow trap and so are compiled with
72# unwinder info.
73LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
74
75MACHMODE_H = machmode.h machmode.def
76
77LIB2ADD = $(LIB2FUNCS_EXTRA)
78LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
79
80# Additional sources to handle exceptions; overridden on ia64.
81LIB2ADDEH = unwind-dw2.c unwind-dw2-fde.c unwind-sjlj.c unwind-c.c
82
83#-----------------------------------------------------------------------
84#
85#	Platform specific bits.
86#	When upgrading GCC, get the following defintions from config/<cpu>/t-*
87#
88
89.if ${TARGET_ARCH} == "alpha"
90#	from config/alpha/t-alpha
91LIB2FUNCS_EXTRA = qrnnd.asm
92.endif
93
94.if ${TARGET_ARCH} == "arm"
95#	from config/arm/t-strongarm-elf
96LIB1ASMSRC = lib1funcs.asm
97LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func
98# We want fine grained libraries, so use the new code to build the
99# floating point emulation libraries.
100XXX fix this: NEED_FP_EMULATION set to "yes" with different rules per platform
101.endif
102
103.if ${TARGET_ARCH} == "ia64"
104#	from config/ia64/t-ia64
105LIB1ASMSRC    = lib1funcs.asm
106LIB1ASMFUNCS  = __divtf3 __divdf3 __divsf3 \
107	__divdi3 __moddi3 __udivdi3 __umoddi3 \
108	__divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
109	__nonlocal_goto __restore_stack_nonlocal __trampoline
110LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
111.endif
112
113.if ${TARGET_ARCH} == "powerpc"
114#	from config/rs6000/t-ppccomm
115LIB2FUNCS_EXTRA = tramp.asm
116# This one can't end up in shared libgcc
117LIB2FUNCS_STATIC_EXTRA = eabi.asm
118# We want fine grained libraries, so use the new code to build the
119# floating point emulation libraries.
120OBJS+=	dp-bit.o fp-bit.o
121.endif
122
123.if ${TARGET_ARCH} == "sparc64"
124#	from config/sparc/t-elf
125# We want fine grained libraries, so use the new code to build the
126# floating point emulation libraries.
127LIB1ASMSRC = lb1spc.asm
128LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
129OBJS+=	dp-bit.o fp-bit.o
130.endif
131
132dp-bit.o: config/fp-bit.c
133	${XCC} -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
134
135dp-bit.So: config/fp-bit.c
136	${XCC} ${PICFLAG} -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
137
138dp-bit.po: config/fp-bit.c
139	${XCC} -p -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
140
141fp-bit.o: config/fp-bit.c
142	${XCC} -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
143
144fp-bit.So: config/fp-bit.c
145	${XCC} ${PICFLAG} -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
146
147fp-bit.po: config/fp-bit.c
148	${XCC} -p -DFLOAT=1 -c ${CFLAGS} -o ${.TARGET} ${.ALLSRC:M*fp-bit*}
149
150#-----------------------------------------------------------------------
151
152# Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
153# defined as optimized assembly code in LIB1ASMFUNCS.
154.if defined(LIB1ASMFUNCS)
155.for sym in ${LIB1ASMFUNCS}
156LIB2FUNCS_1:=	${LIB2FUNCS_1:S/${sym}//g}
157LIB2FUNCS_2:=	${LIB2FUNCS_2:S/${sym}//g}
158LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
159.endfor
160.endif
161
162ASM_T=		${LIB1ASMFUNCS:S/$/.o/}
163ASM_P=		${LIB1ASMFUNCS:S/$/.po/}
164ASM_S=		${LIB1ASMFUNCS:S/$/.So/}
165
166SYMS=		${LIB2FUNCS_1}		\
167		${LIB2FUNCS_2}		\
168		${LIB2_DIVMOD_FUNCS}
169.if ${TARGET_ARCH} == "arm" || ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "sparc64"
170SYMS+=		${FPBIT_FUNCS} ${DPBIT_FUNCS}
171.endif
172SYMS_ST=	${LIB2FUNCS_ST}		\
173		${LIB2ADD_ST}
174OBJS+=		${SYMS:S/$/.o/} ${LIB1ASMFUNCS:S/$/.o/}
175OBJS_T=		${SYMS:S/$/.o/}  ${SYMS_ST:S/$/.o/}
176OBJS_P=		${SYMS:S/$/.po/} ${SYMS_ST:S/$/.po/}
177OBJS_S=		${SYMS:S/$/.So/}
178STATICOBJS=	${SYMS_ST:S/$/.o/}
179SRCS=		${LIB2ADD} ${LIB2ADDEH}
180
181COMMONHDRS=	tconfig.h
182SRCS+=		${COMMONHDRS}
183CLEANFILES+=	${COMMONHDRS}
184
185tconfig.h: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
186	${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
187
188${OBJS} beforedepend: ${COMMONHDRS}
189
190${OBJS_T}: libgcc2.c
191	${XCC} -c ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
192
193.if !defined(NOPIC)
194${OBJS_S}: libgcc2.c
195	${XCC} -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
196.endif
197
198.if !defined(NOPROFILE)
199${OBJS_P}: libgcc2.c
200	${XCC} -c -p ${CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
201.endif
202
203.if defined(LIB1ASMSRC)
204.for _lib1asmsrc in ${LIB1ASMSRC}
205${ASM_T}: ${_lib1asmsrc}
206	${XCC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
207	    -o ${.TARGET} ${.ALLSRC:N*.h}
208
209.if !defined(NOPIC)
210${ASM_S}: ${_lib1asmsrc}
211	${XCC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
212	    -o ${.TARGET} ${.ALLSRC:N*.h}
213.endif
214
215.if !defined(NOPROFILE)
216${ASM_P}: ${_lib1asmsrc}
217	${XCC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
218	    -o ${.TARGET} ${.ALLSRC:N*.h}
219.endif
220.endfor
221.endif
222
223.include <bsd.lib.mk>
224