]> CyberLeo.Net >> Repos - FreeBSD/FreeBSD.git/blob - gnu/lib/libgcc/Makefile
Support reading in .depend files.
[FreeBSD/FreeBSD.git] / gnu / lib / libgcc / Makefile
1 # $FreeBSD$
2
3 PACKAGE=        clibs
4 GCCDIR= ${.CURDIR}/../../../contrib/gcc
5 GCCLIB= ${.CURDIR}/../../../contrib/gcclibs
6 CCDIR=  ${.CURDIR}/../../usr.bin/cc
7
8 SHLIB_NAME=     libgcc_s.so.1
9 SHLIBDIR?=      /lib
10
11 .include <src.opts.mk>
12 #
13 # libgcc is linked in last and thus cannot depend on ssp symbols coming
14 # from earlier libraries. Disable stack protection for this library.
15 #
16 MK_SSP= no
17
18 .include "${CCDIR}/Makefile.tgt"
19 .include "${CCDIR}/cc_tools/Makefile.hdrs"
20
21 .if ${TARGET_CPUARCH} == "arm"
22 CFLAGS+=        -DTARGET_ARM_EABI
23 .endif
24
25 .PATH: ${GCCDIR}/config/${GCC_CPU} ${GCCDIR}/config ${GCCDIR}
26
27 CFLAGS+=        -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
28                 -DHAVE_GTHR_DEFAULT \
29                 -I${GCCLIB}/include \
30                 -I${GCCDIR}/config -I${GCCDIR} -I. \
31                 -I${CCDIR}/cc_tools
32
33 LDFLAGS+=       -nodefaultlibs
34 LIBADD+=        c
35
36 SOBJS=          # added to below in various ways depending on TARGET_CPUARCH
37
38 #---------------------------------------------------------------------------
39 #
40 # Library members defined in libgcc2.c.
41 # When upgrading GCC, obtain the following list from mklibgcc.in
42 #
43 LIB2FUNCS= _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 \
44         _cmpdi2 _ucmpdi2 \
45         _enable_execute_stack _trampoline __main _absvsi2 _absvdi2 _addvsi3 \
46         _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors \
47         _ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab \
48         _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 _powisf2 _powidf2 \
49         _powixf2 _powitf2 _mulsc3 _muldc3 _mulxc3 _multc3 _divsc3 _divdc3 \
50         _divxc3 _divtc3 _bswapsi2 _bswapdi2
51 .if ${COMPILER_TYPE} != "clang" || ${TARGET_CPUARCH} != "arm"
52 LIB2FUNCS+= _clear_cache
53 .endif
54
55 # The floating-point conversion routines that involve a single-word integer.
56 .for mode in sf df xf
57 LIB2FUNCS+= _fixuns${mode}si
58 .endfor
59
60 # Likewise double-word routines.
61 .if ${TARGET_CPUARCH} != "aarch64" && ${TARGET_CPUARCH} != "arm" && \
62     ${TARGET_CPUARCH} != "riscv64"
63 # These are implemented in an ARM specific file but will not be filtered out.
64 # RISCVTODO: can't compile
65 .for mode in sf df xf tf
66 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di
67 LIB2FUNCS+= _floatdi${mode} _floatundi${mode}
68 .endfor
69 .endif
70
71 LIB2ADD = $(LIB2FUNCS_EXTRA)
72 LIB2ADD_ST = $(LIB2FUNCS_STATIC_EXTRA)
73
74
75 .if ${TARGET_CPUARCH} == "arm"
76 LIB2ADDEH =     unwind-arm.c libunwind-arm.S pr-support.c unwind-c.c
77 .else
78 LIB2ADDEH = unwind-dw2.c unwind-dw2-fde-glibc.c unwind-sjlj.c gthr-gnat.c \
79         unwind-c.c
80 .endif
81
82 LIB2ADDEHSTATIC = $(LIB2ADDEH)
83 LIB2ADDEHSHARED = $(LIB2ADDEH)
84
85 # List of extra C and assembler files to add to static and shared libgcc2.
86 # Assembler files should have names ending in `.asm'.
87 LIB2FUNCS_EXTRA =
88
89 # List of extra C and assembler files to add to static libgcc2.
90 # Assembler files should have names ending in `.asm'.
91 LIB2FUNCS_STATIC_EXTRA =
92
93 # Defined in libgcc2.c, included only in the static library.
94 # KAN: Excluded _sf_to_tf and _df_to_tf as TPBIT_FUNCS are not
95 # built on any of our platforms.
96 LIB2FUNCS_ST = _eprintf __gcc_bcmp
97
98 FPBIT_FUNCS = _pack_sf _unpack_sf _addsub_sf _mul_sf _div_sf \
99     _fpcmp_parts_sf _compare_sf _eq_sf _ne_sf _gt_sf _ge_sf \
100     _lt_sf _le_sf _unord_sf _si_to_sf _sf_to_si _negate_sf _make_sf \
101     _sf_to_df _thenan_sf _sf_to_usi _usi_to_sf
102
103 DPBIT_FUNCS = _pack_df _unpack_df _addsub_df _mul_df _div_df \
104     _fpcmp_parts_df _compare_df _eq_df _ne_df _gt_df _ge_df \
105     _lt_df _le_df _unord_df _si_to_df _df_to_si _negate_df _make_df \
106     _df_to_sf _thenan_df _df_to_usi _usi_to_df
107
108 TPBIT_FUNCS = _pack_tf _unpack_tf _addsub_tf _mul_tf _div_tf \
109     _fpcmp_parts_tf _compare_tf _eq_tf _ne_tf _gt_tf _ge_tf \
110     _lt_tf _le_tf _unord_tf _si_to_tf _tf_to_si _negate_tf _make_tf \
111     _tf_to_df _tf_to_sf _thenan_tf _tf_to_usi _usi_to_tf
112
113 # These might cause a divide overflow trap and so are compiled with
114 # unwinder info.
115 LIB2_DIVMOD_FUNCS = _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4
116
117 #-----------------------------------------------------------------------
118 #
119 #       Platform specific bits.
120 #       When upgrading GCC, get the following definitions from config/<cpu>/t-*
121 #
122 .if ${TARGET_CPUARCH} == "arm"
123 #       from config/arm/t-strongarm-elf
124 CFLAGS+=        -Dinhibit_libc -fno-inline
125 CFLAGS.clang+=  -fheinous-gnu-extensions
126
127 LIB1ASMSRC =    lib1funcs.asm
128 LIB1ASMFUNCS =  _dvmd_tls _bb_init_func
129 # Some compilers generate __aeabi_ functions libgcc_s is missing
130 LIBADD+=        compiler_rt
131 .endif
132
133 .if ${TARGET_CPUARCH} == mips
134 LIB2FUNCS_EXTRA = floatunsidf.c floatunsisf.c
135 # ABIs other than o32 need this
136 .if (${TARGET_ARCH:Mmips64*} != "" || ${TARGET_ARCH:Mmipsn32*} != "") && \
137     !defined(COMPAT_32BIT)
138 LIB2FUNCS_EXTRA+= floatdidf.c fixunsdfsi.c
139 LIB2FUNCS_EXTRA+= floatdisf.c floatundidf.c
140 LIB2FUNCS_EXTRA+= fixsfdi.c floatundisf.c
141 LIB2FUNCS_EXTRA+= fixdfdi.c fixunssfsi.c
142 .endif
143 .endif
144
145 .if ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "powerpcspe"
146 #       from config/rs6000/t-ppccomm
147 LIB2FUNCS_EXTRA = tramp.asm
148 LIB2FUNCS_STATIC_EXTRA = eabi.asm
149 .endif
150
151 .if ${TARGET_ARCH} == "powerpc64"
152 #       from config/rs6000/t-ppccomm
153 LIB2FUNCS_EXTRA = tramp.asm
154 .endif
155
156 .if ${TARGET_CPUARCH} == "sparc64"
157 #       from config/sparc/t-elf
158 LIB1ASMSRC =   lb1spc.asm
159 LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3
160 .endif
161
162 #-----------------------------------------------------------------------
163
164 # Remove any objects from LIB2FUNCS and LIB2_DIVMOD_FUNCS that are
165 # defined as optimized assembly code in LIB1ASMFUNCS.
166 .if defined(LIB1ASMFUNCS)
167 .for sym in ${LIB1ASMFUNCS}
168 LIB2FUNCS:=     ${LIB2FUNCS:S/${sym}//g}
169 LIB2_DIVMOD_FUNCS:= ${LIB2_DIVMOD_FUNCS:S/${sym}//g}
170 .endfor
171 .endif
172
173 COMMONHDRS=     tm.h tconfig.h options.h gthr-default.h
174 COMMONHDRS+=    unwind.h
175
176 #-----------------------------------------------------------------------
177 #
178 # Helpful shortcuts for compiler invocations.
179 #
180 HIDE =  -fvisibility=hidden -DHIDE_EXPORTS
181 CC_T =  ${CC} -c ${CFLAGS} ${HIDE} -fPIC
182 CC_P =  ${CC} -c ${CFLAGS} ${HIDE} -p -fPIC
183 CC_S =  ${CC} -c ${CFLAGS} ${SHARED_CFLAGS} ${PICFLAG} -DSHARED
184
185 #-----------------------------------------------------------------------
186 #
187 # Functions from libgcc2.c
188 #
189 STD_CFLAGS =
190 DIV_CFLAGS =    -fexceptions -fnon-call-exceptions
191
192 STD_FUNCS =     ${LIB2FUNCS}
193 DIV_FUNCS =     ${LIB2_DIVMOD_FUNCS}
194
195 STD_CFILE =     libgcc2.c
196 DIV_CFILE =     libgcc2.c
197
198 OBJ_GRPS =      STD DIV
199
200 #-----------------------------------------------------------------------
201 #
202 # Floating point emulation functions
203 #
204 .if ${TARGET_CPUARCH} == "armNOT_YET" || \
205     ${TARGET_CPUARCH} == "powerpc" || ${TARGET_CPUARCH} == "sparc64"
206
207 FPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES -DFLOAT
208 DPBIT_CFLAGS =  -DFINE_GRAINED_LIBRARIES
209
210 FPBIT_CFILE =   config/fp-bit.c
211 DPBIT_CFILE =   config/fp-bit.c
212
213 OBJ_GRPS +=     FPBIT DPBIT
214 .endif
215
216 #-----------------------------------------------------------------------
217 #
218 # Generic build rules for object groups defined above
219 #
220 .for T in ${OBJ_GRPS}
221 ${T}_OBJS_T =   ${${T}_FUNCS:S/$/.o/}
222 ${T}_OBJS_P =   ${${T}_FUNCS:S/$/.po/}
223 ${T}_OBJS_S =   ${${T}_FUNCS:S/$/.pico/}
224 SOBJS +=        ${${T}_FUNCS:S/$/.pico/}
225
226 ${${T}_OBJS_T}: ${${T}_CFILE} ${COMMONHDRS}
227         ${CC_T} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c:[1]}
228 ${${T}_OBJS_P}: ${${T}_CFILE} ${COMMONHDRS}
229         ${CC_P} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c:[1]}
230 ${${T}_OBJS_S}: ${${T}_CFILE} ${COMMONHDRS}
231         ${CC_S} ${${T}_CFLAGS} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c:[1]}
232 .endfor
233
234 #-----------------------------------------------------------------------
235 #
236 # Extra objects coming from separate files
237 #
238 .if !empty(LIB2ADD)
239 SOBJS +=        ${LIB2ADD:R:S/$/.pico/}
240 .endif
241
242 #-----------------------------------------------------------------------
243 #
244 # Objects that should be in static library only.
245 #
246 SYMS_ST =       ${LIB2FUNCS_ST} ${LIB2ADD_ST}
247 STAT_OBJS_T =   ${SYMS_ST:S/$/.o/}
248 STAT_OBJS_P =   ${SYMS_ST:S/$/.po/}
249 STATICOBJS  =   ${SYMS_ST:S/$/.o/}
250
251 ${STAT_OBJS_T}: ${STD_CFILE} ${COMMONHDRS}
252         ${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c:[1]}
253 ${STAT_OBJS_P}: ${STD_CFILE} ${COMMONHDRS}
254         ${CC_P} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c:[1]}
255
256 #-----------------------------------------------------------------------
257 #
258 # Assembler files.
259 #
260 .if defined(LIB1ASMSRC)
261 ASM_T =         ${LIB1ASMFUNCS:S/$/.o/}
262 ASM_P =         ${LIB1ASMFUNCS:S/$/.po/}
263 ASM_S =         ${LIB1ASMFUNCS:S/$/.pico/}
264 ASM_V =         ${LIB1ASMFUNCS:S/$/.vis/}
265 SOBJS +=        ${LIB1ASMFUNCS:S/$/.pico/}
266
267 ${ASM_T}: ${LIB1ASMSRC} ${.PREFIX}.vis
268         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
269             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
270 ${ASM_P}: ${LIB1ASMSRC} ${.PREFIX}.vis
271         ${CC} -x assembler-with-cpp -p -c ${CFLAGS} -DL${.PREFIX} \
272             -o ${.TARGET} -include ${.PREFIX}.vis ${.ALLSRC:N*.h:N*.vis}
273 ${ASM_S}: ${LIB1ASMSRC}
274         ${CC} -x assembler-with-cpp -c ${PICFLAG} ${CFLAGS} -DL${.PREFIX} \
275             -o ${.TARGET} ${.ALLSRC:N*.h}
276 ${ASM_V}: ${LIB1ASMSRC}
277         ${CC} -x assembler-with-cpp -c ${CFLAGS} -DL${.PREFIX} \
278             -o ${.PREFIX}.vo ${.ALLSRC:N*.h}
279         ( ${NM} -pg ${.PREFIX}.vo | \
280                 awk 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t.hidden ", $$3 }'\
281         ) > ${.TARGET}
282
283 CLEANFILES += ${ASM_V} ${ASM_V:R:S/$/.vo/}
284 .endif
285
286 #-----------------------------------------------------------------------
287 #
288 # Exception handling / unwinding support.
289 #
290 EH_OBJS_T = ${LIB2ADDEHSTATIC:R:S/$/.o/}
291 EH_OBJS_P = ${LIB2ADDEHSTATIC:R:S/$/.po/}
292 EH_OBJS_S = ${LIB2ADDEHSHARED:R:S/$/.pico/}
293 EH_CFLAGS = -fexceptions -D__GLIBC__=3 -DElfW=__ElfN
294 .if ${TARGET_CPUARCH} != "riscv64"
295 # RISCVTODO: unwinding support
296 SOBJS    += ${EH_OBJS_S}
297 .endif
298
299 .for _src in ${LIB2ADDEHSTATIC:M*.c}
300 ${_src:R:S/$/.o/}: ${_src} ${COMMONHDRS}
301         ${CC_T} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
302 ${_src:R:S/$/.po/}: ${_src} ${COMMONHDRS}
303         ${CC_P} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
304 .endfor
305 .for _src in ${LIB2ADDEHSHARED:M*.c}
306 ${_src:R:S/$/.pico/}: ${_src} ${COMMONHDRS}
307         ${CC_S} ${EH_CFLAGS} -o ${.TARGET} ${.IMPSRC}
308 .endfor
309
310
311 CLEANFILES += ${COMMONHDRS}
312 CLEANFILES += cs-*.h option*
313
314 #-----------------------------------------------------------------------
315 #
316 # Build symbol version map
317 #
318 SHLIB_MKMAP      = ${GCCDIR}/mkmap-symver.awk
319 SHLIB_MKMAP_OPTS =
320 SHLIB_MAPFILES   = ${GCCDIR}/libgcc-std.ver
321 .if ${TARGET_CPUARCH} == "arm"
322 SHLIB_MAPFILES  += ${GCCDIR}/config/arm/libgcc-bpabi.ver
323 .endif
324 VERSION_MAP      = libgcc.map
325
326 libgcc.map: ${SHLIB_MKMAP} ${SHLIB_MAPFILES} ${SOBJS}
327         (  ${NM} -pg ${SOBJS};echo %% ; \
328           cat ${SHLIB_MAPFILES} \
329             | sed -e '/^[   ]*#/d' \
330                   -e 's/^%\(if\|else\|elif\|endif\|define\)/#\1/' \
331             | ${CC} ${CFLAGS} -E -xassembler-with-cpp -; \
332         ) | awk -f ${SHLIB_MKMAP} ${SHLIB_MKMAP_OPTS} > ${.TARGET}
333
334 CLEANFILES +=   libgcc.map
335
336 #-----------------------------------------------------------------------
337 #
338 # Build additional static libgcc_eh[_p].a libraries.
339 #
340 libgcc_eh.a:    ${EH_OBJS_T}
341         @${ECHO} building static gcc_eh library
342         @rm -f ${.TARGET}
343         ${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_T} | tsort -q`
344         ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
345
346 _LIBS+= libgcc_eh.a
347
348 .if ${MK_PROFILE} != "no"
349 libgcc_eh_p.a:  ${EH_OBJS_P}
350         @${ECHO} building profiled gcc_eh library
351         @rm -f ${.TARGET}
352         ${AR} ${ARFLAGS} ${.TARGET} `lorder ${EH_OBJS_P} | tsort -q`
353         ${RANLIB} ${RANLIBFLAGS} ${.TARGET}
354
355 _LIBS+= libgcc_eh_p.a
356 .endif
357
358 _libinstall: _lib-eh-install
359
360 _lib-eh-install:
361 .if ${MK_INSTALLLIB} != "no"
362         ${INSTALL} ${TAG_ARGS} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
363                 ${_INSTALLFLAGS} libgcc_eh.a ${DESTDIR}${LIBDIR}
364 .endif
365 .if ${MK_PROFILE} != "no"
366         ${INSTALL} ${TAG_ARGS} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
367                 ${_INSTALLFLAGS} libgcc_eh_p.a ${DESTDIR}${LIBDIR}
368 .endif
369
370 CLEANFILES+=    libgcc_eh.a libgcc_eh_p.a ${EH_OBJS_T} ${EH_OBJS_P}
371
372 .include <bsd.lib.mk>
373
374 .SUFFIXES: .vis .vo