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1 # $FreeBSD$
2
3 GCCDIR= ${.CURDIR}/../../../contrib/gcc
4 GCCLIB= ${.CURDIR}/../../../contrib/gcclibs
5
6 SHLIB_NAME=     libgcc_s.so.1
7 SHLIBDIR?=      /lib
8
9 .include <bsd.own.mk>
10 #
11 # libgcc is linked in last and thus cannot depend on ssp symbols coming
12 # from earlier libraries. Disable stack protection for this library.
13 #
14 MK_SSP= no
15
16 .include "${.CURDIR}/../../usr.bin/cc/Makefile.tgt"
17
18 .if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
19 CFLAGS+=        -DTARGET_ARM_EABI
20 .endif
21
22 .PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR}
23
24 CFLAGS+=        -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
25                 -DHAVE_GTHR_DEFAULT \
26                 -I${GCCLIB}/include \
27                 -I${GCCDIR}/config -I${GCCDIR} -I. \
28                 -I${.CURDIR}/../../usr.bin/cc/cc_tools
29
30 LDFLAGS+=       -nodefaultlibs
31 LDADD+=         -lc
32
33 OBJS=           # added to below in various ways depending on TARGET_CPUARCH
34
35 #---------------------------------------------------------------------------
36 #
37 # When upgrading GCC, get the following defintions straight from Makefile.in
38 #
39 # Library members defined in libgcc2.c.
40 LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
41         _cmpdi2 _ucmpdi2 \
42         _enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
43         _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
44         _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
45         _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
46         _powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
47         _divxc3 _divtc3
48 .if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm"
49 LIB2FUNCS+= _clear_cache
50 .endif
51
52 # The floating-point conversion routines that involve a single-word integer.
53 .for mode in sf df xf
54 LIB2FUNCS+= _fixuns${mode}si
55 .endfor
56
57 # Likewise double-word routines.
58 .if ${TARGET_CPUARCH} != "arm" || ${MK_ARM_EABI} == "no"
59 # These are implemented in an ARM specific file but will not be filtered out
60 .for mode in sf df xf tf
61 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
62 LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
63 .endfor
64 .endif
65
66 LIB2ADD = $(LIB2FUNCS_EXTRA)
67 LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
68
69 # Additional sources to handle exceptions; overridden by targets as needed.
70 LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
71         unwind-c.c
72 LIB2ADDEHSTATIC = $(LIB2ADDEH)
73 LIB2ADDEHSHARED = $(LIB2ADDEH)
74
75 # List of extra C and assembler files to add to static and shared libgcc2.
76 # Assembler files should have names ending in `.asm'.
77 LIB2FUNCS_EXTRA =
78
79 # List of extra C and assembler files to add to static libgcc2.
80 # Assembler files should have names ending in `.asm'.
81 LIB2FUNCS_STATIC_EXTRA =
82
83 # Defined in libgcc2.c, included only in the static library.
84 # KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
85 # built on any of our platforms.
86 LIB2FUNCS_ST = _eprintf __gcc_bcmp
87
88 FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
89     _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
90     _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
91     _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
92
93 DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
94     _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
95     _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
96     _df_to_sf _thenan_df _df_to_usi _usi_to_df
97
98 TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
99     _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
100     _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
101     _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
102
103 # These might cause a divide overflow trap and so are compiled with
104 # unwinder info.
105 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
106
107 #-----------------------------------------------------------------------
108 #
109 #       Platform specific bits.
110 #       When upgrading GCC, get the following definitions from config/<cpu>/t-*
111 #
112 .if ${TARGET_CPUARCH} == "arm"
113 #       from config/arm/t-strongarm-elf
114 CFLAGS+=        -Dinhibit_libc -fno-inline
115 .if ${COMPILER_TYPE} == "clang"
116 CFLAGS+=        -fheinous-gnu-extensions
117 .endif
118
119 LIB1ASMSRC =    lib1funcs.asm
120 LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
121 .if ${MK_ARM_EABI} != "no"
122 LIB2ADDEH =     unwind-arm.c libunwind.S pr-support.c unwind-c.c
123 # Some compilers generate __aeabi_ functions libgcc_s is missing
124 DPADD+=         ${LIBGCC}
125 LDADD+=         -lgcc
126 .else
127 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
128 .endif
129 .endif
130
131 .if ${TARGET_CPUARCH} == mips
132 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
133 # ABIs other than o32 need this
134 .if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
135 LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
136 LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
137 LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
138 LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
139 .endif
140 .endif
141
142 .if ${TARGET_CPUARCH} == "ia64"
143 #       from config/ia64/t-ia64
144 LIB1ASMSRC   = lib1funcs.asm
145 LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
146         __divdi3 __moddi3 __udivdi3 __umoddi3 \
147         __divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
148         __nonlocal_goto __restore_stack_nonlocal __trampoline \
149         _fixtfdi _fixunstfdi _floatditf
150 LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
151 .endif
152
153 .if ${TARGET_ARCH} == "powerpc"
154 #       from config/rs6000/t-ppccomm
155 LIB2FUNCS_EXTRA = tramp.asm
156 LIB2FUNCS_STATIC_EXTRA = eabi.asm
157 .endif
158
159 .if ${TARGET_ARCH} == "powerpc64"
160 #       from config/rs6000/t-ppccomm
161 LIB2FUNCS_EXTRA = tramp.asm
162 .endif
163
164 .if ${TARGET_CPUARCH} == "sparc64"
165 #       from config/sparc/t-elf
166 LIB1ASMSRC =   lb1spc.asm
167 LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
168 .endif
169
170 #-----------------------------------------------------------------------
171
172 # Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
173 # defined as optimized assembly code in LIB1ASMFUNCS.
174 .if defined(LIB1ASMFUNCS)
175 .for sym in ${LIB1ASMFUNCS}
176 LIB2FUNCS:=     ${LIB2FUNCS:S/${sym}//g}
177 LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
178 .endfor
179 .endif
180
181 COMMONHDRS=     tm.h tconfig.h options.h unwind.h gthr-default.h
182
183 #-----------------------------------------------------------------------
184 #
185 # Helpful shortcuts for compiler invocations.
186 #
187 HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
188 CC_T =  ${CC} -c ${CFLAGS} ${HIDE} -fPIC
189 CC_P =  ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
190 CC_S =  ${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
191
192 #-----------------------------------------------------------------------
193 #
194 # Functions from libgcc2.c
195 #
196 STD_CFLAGS =
197 DIV_CFLAGS =    -fexceptions -fnon-call-exceptions
198
199 STD_FUNCS =     ${LIB2FUNCS}
200 DIV_FUNCS =     ${LIB2_DIVMOD_FUNCS}
201
202 STD_CFILE =     libgcc2.c
203 DIV_CFILE =     libgcc2.c
204
205 OBJ_GRPS =      STD DIV
206
207 #-----------------------------------------------------------------------
208 #
209 # Floating point emulation functions
210 #
211 .if ${TARGET_CPUARCH} == "armNOT_YET" || \
212     ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
213
214 FPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES -DFLOAT
215 DPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES
216
217 FPBIT_CFILE =   config/fp-bit.c
218 DPBIT_CFILE =   config/fp-bit.c
219
220 OBJ_GRPS +=     FPBIT DPBIT
221 .endif
222
223 #-----------------------------------------------------------------------
224 #
225 # Generic build rules for object groups defined above
226 #
227 .for T in ${OBJ_GRPS}
228 ${T}_OBJS_T =   ${${T}_FUNCS:S/$/.o/}
229 ${T}_OBJS_P =   ${${T}_FUNCS:S/$/.po/}
230 ${T}_OBJS_S =   ${${T}_FUNCS:S/$/.So/}
231 OBJS +=         ${${T}_FUNCS:S/$/.o/}
232
233 ${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
234         ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
235 ${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
236         ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
237 ${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
238         ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
239 .endfor
240
241 #-----------------------------------------------------------------------
242 #
243 # Extra objects coming from separate files
244 #
245 .if !empty(LIB2ADD)
246 OBJS  +=        ${LIB2ADD:R:S/$/.o/}
247 SOBJS +=        ${LIB2ADD:R:S/$/.So/}
248 POBJS +=        ${LIB2ADD:R:S/$/.po/}
249 .endif
250
251 #-----------------------------------------------------------------------
252 #
253 # Objects that should be in static library only.
254 #
255 SYMS_ST =       ${LIB2FUNCS_ST} ${LIB2ADD_ST}
256 STAT_OBJS_T =   ${SYMS_ST:S/$/.o/}
257 STAT_OBJS_P =   ${SYMS_ST:S/$/.po/}
258 STATICOBJS  =   ${SYMS_ST:S/$/.o/}
259
260 ${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS}
261         ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
262 ${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS}
263         ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
264
265 #-----------------------------------------------------------------------
266 #
267 # Assembler files.
268 #
269 .if defined(LIB1ASMSRC)
270 ASM_T =         ${LIB1ASMFUNCS:S/$/.o/}
271 ASM_P =         ${LIB1ASMFUNCS:S/$/.po/}
272 ASM_S =         ${LIB1ASMFUNCS:S/$/.So/}
273 ASM_V =         ${LIB1ASMFUNCS:S/$/.vis/}
274 OBJS +=         ${LIB1ASMFUNCS:S/$/.o/}
275
276 ${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
277         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
278             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
279 ${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
280         ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
281             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
282 ${ASM_S}: ${LIB1ASMSRC}
283         ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
284             -o ${.TARGET} ${.ALLSRC:N*.h}
285 ${ASM_V}: ${LIB1ASMSRC}
286         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
287             -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
288         ( ${NM} -pg ${.PREFIX}.vo | \
289                 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
290         ) > ${.TARGET}
291
292 CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
293 .endif
294
295 #-----------------------------------------------------------------------
296 #
297 # Exception handling / unwinding support.
298 #
299 EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
300 EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
301 EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
302 EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
303 SOBJS    += ${EH_OBJS_S}
304
305 .for _src in ${LIB2ADDEHSTATIC}
306 ${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
307         ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
308 ${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
309         ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
310 .endfor
311 .for _src in ${LIB2ADDEHSHARED}
312 ${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
313         ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
314 .endfor
315
316
317 #-----------------------------------------------------------------------
318 #
319 # Generated headers
320 #
321 ${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
322         ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
323
324 CLEANFILES += ${COMMONHDRS}
325 CLEANFILES += cs-*.h option*
326
327 #-----------------------------------------------------------------------
328 #
329 # Build symbol version map
330 #
331 SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
332 SHLIB_MKMAP_OPTS =
333 SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
334 .if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
335 SHLIB_MAPFILES  += ${GCCDIR}/config/arm/libgcc-bpabi.ver
336 .endif
337 VERSION_MAP      = libgcc.map
338
339 libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
340         (  ${NM} -pg ${SOBJS};echo %% ; \
341           cat ${SHLIB_MAPFILES} \
342             | sed -e '/^[   ]*#/d' \
343                   -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
344             | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
345         ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
346
347 CLEANFILES +=   libgcc.map
348
349 #-----------------------------------------------------------------------
350 #
351 # Build additional static libgcc_eh[_p].a libraries.
352 #
353 libgcc_eh.a:    ${EH_OBJS_T}
354         @${ECHO} building static gcc_eh library
355         @rm -f ${.TARGET}
356         @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
357         ${RANLIB} ${.TARGET}
358
359 all:    libgcc_eh.a
360
361 .if ${MK_PROFILE} != "no"
362 libgcc_eh_p.a:  ${EH_OBJS_P}
363         @${ECHO} building profiled gcc_eh library
364         @rm -f ${.TARGET}
365         @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
366         ${RANLIB} ${.TARGET}
367 all:    libgcc_eh_p.a
368 .endif
369
370 _libinstall: _lib-eh-install
371
372 _lib-eh-install:
373 .if ${MK_INSTALLLIB} != "no"
374         ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
375                 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
376 .endif
377 .if ${MK_PROFILE} != "no"
378         ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
379                 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
380 .endif
381
382 CLEANFILES+=    libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
383
384 .include <bsd.lib.mk>
385
386 .SUFFIXES: .vis .vo