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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 DPADD+=         ${LIBC}
32 LDADD+=         -lc
33
34 OBJS=           # added to below in various ways depending on TARGET_CPUARCH
35
36 #---------------------------------------------------------------------------
37 #
38 # Library members defined in libgcc2.c.
39 # When upgrading GCC, obtain the following list from mklibgcc.in
40 #
41 LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
42         _cmpdi2 _ucmpdi2 \
43         _enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
44         _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
45         _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
46         _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
47         _powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
48         _divxc3 _divtc3 _bswapsi2 _bswapdi2
49 .if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm"
50 LIB2FUNCS+= _clear_cache
51 .endif
52
53 # The floating-point conversion routines that involve a single-word integer.
54 .for mode in sf df xf
55 LIB2FUNCS+= _fixuns${mode}si
56 .endfor
57
58 # Likewise double-word routines.
59 .if ${TARGET_CPUARCH} != "arm" || ${MK_ARM_EABI} == "no"
60 # These are implemented in an ARM specific file but will not be filtered out
61 .for mode in sf df xf tf
62 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
63 LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
64 .endfor
65 .endif
66
67 LIB2ADD = $(LIB2FUNCS_EXTRA)
68 LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
69
70 # Additional sources to handle exceptions; overridden by targets as needed.
71 LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
72         unwind-c.c
73 LIB2ADDEHSTATIC = $(LIB2ADDEH)
74 LIB2ADDEHSHARED = $(LIB2ADDEH)
75
76 # List of extra C and assembler files to add to static and shared libgcc2.
77 # Assembler files should have names ending in `.asm'.
78 LIB2FUNCS_EXTRA =
79
80 # List of extra C and assembler files to add to static libgcc2.
81 # Assembler files should have names ending in `.asm'.
82 LIB2FUNCS_STATIC_EXTRA =
83
84 # Defined in libgcc2.c, included only in the static library.
85 # KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
86 # built on any of our platforms.
87 LIB2FUNCS_ST = _eprintf __gcc_bcmp
88
89 FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
90     _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
91     _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
92     _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
93
94 DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
95     _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
96     _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
97     _df_to_sf _thenan_df _df_to_usi _usi_to_df
98
99 TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
100     _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
101     _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
102     _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
103
104 # These might cause a divide overflow trap and so are compiled with
105 # unwinder info.
106 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
107
108 #-----------------------------------------------------------------------
109 #
110 #       Platform specific bits.
111 #       When upgrading GCC, get the following definitions from config/<cpu>/t-*
112 #
113 .if ${TARGET_CPUARCH} == "arm"
114 #       from config/arm/t-strongarm-elf
115 CFLAGS+=        -Dinhibit_libc -fno-inline
116 CFLAGS.clang+=  -fheinous-gnu-extensions
117
118 LIB1ASMSRC =    lib1funcs.asm
119 LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
120 .if ${MK_ARM_EABI} != "no"
121 LIB2ADDEH =     unwind-arm.c libunwind.S pr-support.c unwind-c.c
122 # Some compilers generate __aeabi_ functions libgcc_s is missing
123 DPADD+=         ${LIBGCC}
124 LDADD+=         -lgcc
125 .else
126 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
127 .endif
128 .endif
129
130 .if ${TARGET_CPUARCH} == mips
131 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
132 # ABIs other than o32 need this
133 .if ${TARGET_ARCH} != "mips" && ${TARGET_ARCH} != "mipsel"
134 LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
135 LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
136 LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
137 LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
138 .endif
139 .endif
140
141 .if ${TARGET_CPUARCH} == "ia64"
142 #       from config/ia64/t-ia64
143 LIB1ASMSRC   = lib1funcs.asm
144 LIB1ASMFUNCS = __divxf3 __divdf3 __divsf3 \
145         __divdi3 __moddi3 __udivdi3 __umoddi3 \
146         __divsi3 __modsi3 __udivsi3 __umodsi3 __save_stack_nonlocal \
147         __nonlocal_goto __restore_stack_nonlocal __trampoline \
148         _fixtfdi _fixunstfdi _floatditf
149 LIB2ADDEH = unwind-ia64.c unwind-sjlj.c unwind-c.c
150 .endif
151
152 .if ${TARGET_ARCH} == "powerpc"
153 #       from config/rs6000/t-ppccomm
154 LIB2FUNCS_EXTRA = tramp.asm
155 LIB2FUNCS_STATIC_EXTRA = eabi.asm
156 .endif
157
158 .if ${TARGET_ARCH} == "powerpc64"
159 #       from config/rs6000/t-ppccomm
160 LIB2FUNCS_EXTRA = tramp.asm
161 .endif
162
163 .if ${TARGET_CPUARCH} == "sparc64"
164 #       from config/sparc/t-elf
165 LIB1ASMSRC =   lb1spc.asm
166 LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
167 .endif
168
169 #-----------------------------------------------------------------------
170
171 # Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
172 # defined as optimized assembly code in LIB1ASMFUNCS.
173 .if defined(LIB1ASMFUNCS)
174 .for sym in ${LIB1ASMFUNCS}
175 LIB2FUNCS:=     ${LIB2FUNCS:S/${sym}//g}
176 LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
177 .endfor
178 .endif
179
180 COMMONHDRS=     tm.h tconfig.h options.h unwind.h gthr-default.h
181
182 #-----------------------------------------------------------------------
183 #
184 # Helpful shortcuts for compiler invocations.
185 #
186 HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
187 CC_T =  ${CC} -c ${CFLAGS} ${HIDE} -fPIC
188 CC_P =  ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
189 CC_S =  ${CC} -c ${CFLAGS} ${PICFLAG} -DSHARED
190
191 #-----------------------------------------------------------------------
192 #
193 # Functions from libgcc2.c
194 #
195 STD_CFLAGS =
196 DIV_CFLAGS =    -fexceptions -fnon-call-exceptions
197
198 STD_FUNCS =     ${LIB2FUNCS}
199 DIV_FUNCS =     ${LIB2_DIVMOD_FUNCS}
200
201 STD_CFILE =     libgcc2.c
202 DIV_CFILE =     libgcc2.c
203
204 OBJ_GRPS =      STD DIV
205
206 #-----------------------------------------------------------------------
207 #
208 # Floating point emulation functions
209 #
210 .if ${TARGET_CPUARCH} == "armNOT_YET" || \
211     ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
212
213 FPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES -DFLOAT
214 DPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES
215
216 FPBIT_CFILE =   config/fp-bit.c
217 DPBIT_CFILE =   config/fp-bit.c
218
219 OBJ_GRPS +=     FPBIT DPBIT
220 .endif
221
222 #-----------------------------------------------------------------------
223 #
224 # Generic build rules for object groups defined above
225 #
226 .for T in ${OBJ_GRPS}
227 ${T}_OBJS_T =   ${${T}_FUNCS:S/$/.o/}
228 ${T}_OBJS_P =   ${${T}_FUNCS:S/$/.po/}
229 ${T}_OBJS_S =   ${${T}_FUNCS:S/$/.So/}
230 OBJS +=         ${${T}_FUNCS:S/$/.o/}
231
232 ${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
233         ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
234 ${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
235         ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
236 ${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
237         ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
238 .endfor
239
240 #-----------------------------------------------------------------------
241 #
242 # Extra objects coming from separate files
243 #
244 .if !empty(LIB2ADD)
245 OBJS  +=        ${LIB2ADD:R:S/$/.o/}
246 SOBJS +=        ${LIB2ADD:R:S/$/.So/}
247 POBJS +=        ${LIB2ADD:R:S/$/.po/}
248 .endif
249
250 #-----------------------------------------------------------------------
251 #
252 # Objects that should be in static library only.
253 #
254 SYMS_ST =       ${LIB2FUNCS_ST} ${LIB2ADD_ST}
255 STAT_OBJS_T =   ${SYMS_ST:S/$/.o/}
256 STAT_OBJS_P =   ${SYMS_ST:S/$/.po/}
257 STATICOBJS  =   ${SYMS_ST:S/$/.o/}
258
259 ${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS}
260         ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
261 ${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS}
262         ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
263
264 #-----------------------------------------------------------------------
265 #
266 # Assembler files.
267 #
268 .if defined(LIB1ASMSRC)
269 ASM_T =         ${LIB1ASMFUNCS:S/$/.o/}
270 ASM_P =         ${LIB1ASMFUNCS:S/$/.po/}
271 ASM_S =         ${LIB1ASMFUNCS:S/$/.So/}
272 ASM_V =         ${LIB1ASMFUNCS:S/$/.vis/}
273 OBJS +=         ${LIB1ASMFUNCS:S/$/.o/}
274
275 ${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
276         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
277             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
278 ${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
279         ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
280             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
281 ${ASM_S}: ${LIB1ASMSRC}
282         ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
283             -o ${.TARGET} ${.ALLSRC:N*.h}
284 ${ASM_V}: ${LIB1ASMSRC}
285         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
286             -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
287         ( ${NM} -pg ${.PREFIX}.vo | \
288                 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
289         ) > ${.TARGET}
290
291 CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
292 .endif
293
294 #-----------------------------------------------------------------------
295 #
296 # Exception handling / unwinding support.
297 #
298 EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
299 EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
300 EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.So/}
301 EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
302 SOBJS    += ${EH_OBJS_S}
303
304 .for _src in ${LIB2ADDEHSTATIC}
305 ${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
306         ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
307 ${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
308         ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
309 .endfor
310 .for _src in ${LIB2ADDEHSHARED}
311 ${_src:R:S/$/.So/}: ${_src} ${COMMONHDRS}
312         ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
313 .endfor
314
315
316 #-----------------------------------------------------------------------
317 #
318 # Generated headers
319 #
320 ${COMMONHDRS}: ${.CURDIR}/../../usr.bin/cc/cc_tools/Makefile
321         ${MAKE} -f ${.ALLSRC} MFILE=${.ALLSRC} GCCDIR=${GCCDIR} ${.TARGET}
322
323 CLEANFILES += ${COMMONHDRS}
324 CLEANFILES += cs-*.h option*
325
326 #-----------------------------------------------------------------------
327 #
328 # Build symbol version map
329 #
330 SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
331 SHLIB_MKMAP_OPTS =
332 SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
333 .if ${TARGET_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
334 SHLIB_MAPFILES  += ${GCCDIR}/config/arm/libgcc-bpabi.ver
335 .endif
336 VERSION_MAP      = libgcc.map
337
338 libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS} ${OBJS:R:S/$/.So/}
339         (  ${NM} -pg ${SOBJS};echo %% ; \
340           cat ${SHLIB_MAPFILES} \
341             | sed -e '/^[   ]*#/d' \
342                   -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
343             | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
344         ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
345
346 CLEANFILES +=   libgcc.map
347
348 #-----------------------------------------------------------------------
349 #
350 # Build additional static libgcc_eh[_p].a libraries.
351 #
352 libgcc_eh.a:    ${EH_OBJS_T}
353         @${ECHO} building static gcc_eh library
354         @rm -f ${.TARGET}
355         @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
356         ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
357
358 all:    libgcc_eh.a
359
360 .if ${MK_PROFILE} != "no"
361 libgcc_eh_p.a:  ${EH_OBJS_P}
362         @${ECHO} building profiled gcc_eh library
363         @rm -f ${.TARGET}
364         @${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
365         ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
366 all:    libgcc_eh_p.a
367 .endif
368
369 _libinstall: _lib-eh-install
370
371 _lib-eh-install:
372 .if ${MK_INSTALLLIB} != "no"
373         ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
374                 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
375 .endif
376 .if ${MK_PROFILE} != "no"
377         ${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
378                 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
379 .endif
380
381 CLEANFILES+=    libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
382
383 .include <bsd.lib.mk>
384
385 .SUFFIXES: .vis .vo