PR c++/85662
[official-gcc.git] / libgcc / config.host
blobf8fd78279d353f6959e75ac25571c1b7b2dec110
1 # libgcc host-specific configuration file.
2 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
4 #This file is part of GCC.
6 #GCC is free software; you can redistribute it and/or modify it under
7 #the terms of the GNU General Public License as published by the Free
8 #Software Foundation; either version 3, or (at your option) any later
9 #version.
11 #GCC is distributed in the hope that it will be useful, but WITHOUT
12 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 #FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 #for more details.
16 #You should have received a copy of the GNU General Public License
17 #along with GCC; see the file COPYING3.  If not see
18 #<http://www.gnu.org/licenses/>.
20 # This is the libgcc host-specific configuration file
21 # where a configuration type is mapped to different system-specific
22 # definitions and files.  This is invoked by the autoconf-generated
23 # configure script.  Putting it in a separate shell file lets us skip
24 # running autoconf when modifying host-specific information.
26 # This file bears an obvious resemblance to gcc/config.gcc.  The cases
27 # should be kept similar, to ease moving library-specific settings
28 # from config.gcc to this file.  That is also why tmake_file is
29 # left as tmake_file, rather than hmake_file, even though this library
30 # switches on ${host}.
32 # This file switches on the shell variable ${host}, and also uses the
33 # following shell variables:
35 #  with_*               Various variables as set by configure.
37 # This file sets the following shell variables for use by the
38 # autoconf-generated configure script:
40 #  asm_hidden_op        The assembler pseudo-op to use for hide
41 #                       lists for object files implemented in
42 #                       assembly (with -fvisibility=hidden for C).
43 #                       The default is ".hidden".
44 #  cpu_type             The name of the cpu, if different from the first
45 #                       chunk of the canonical host name.
46 #  enable_execute_stack The name of a source file implementing
47 #                       __enable_execute_stack.
48 #  extra_parts          List of extra object files that should be compiled
49 #                       for this target machine.  This may be overridden
50 #                       by setting EXTRA_PARTS in a tmake_file fragment.
51 #                       If either is set, EXTRA_PARTS and
52 #                       EXTRA_MULTILIB_PARTS inherited from the GCC
53 #                       subdirectory will be ignored.
54 #  md_unwind_header     The name of a header file defining
55 #                       MD_FALLBACK_FRAME_STATE_FOR.
56 #  sfp_machine_header   The name of a sfp-machine.h header file for soft-fp.
57 #                       Defaults to "$cpu_type/sfp-machine.h" if it exists,
58 #                       no-sfp-machine.h otherwise.
59 #  tmake_file           A list of machine-description-specific
60 #                       makefile fragments.
61 #  tm_defines           List of target macros to define for all compilations.
62 #  tm_file              A list of target macro files used only for code
63 #                       built for the target, not the host.  These files
64 #                       are relative to $srcdir/config and must not have
65 #                       the same names as files in $srcdir/../gcc/config.
66 #  unwind_header        The name of the header file declaring the unwind
67 #                       runtime interface routines.
69 asm_hidden_op=.hidden
70 enable_execute_stack=
71 extra_parts=
72 tmake_file=
73 tm_file=
74 tm_define=
75 md_unwind_header=no-unwind.h
76 unwind_header=unwind-generic.h
78 # Set default cpu_type so it can be updated in each machine entry.
79 cpu_type=`echo ${host} | sed 's/-.*$//'`
80 case ${host} in
81 m32c*-*-*)
82         cpu_type=m32c
83         tmake_file=t-fdpbit
84         ;;
85 aarch64*-*-*)
86         cpu_type=aarch64
87         ;;
88 alpha*-*-*)
89         cpu_type=alpha
90         ;;
91 am33_2.0-*-linux*)
92         cpu_type=mn10300
93         ;;
94 arc*-*-*)
95         cpu_type=arc
96         ;;
97 arm*-*-*)
98         cpu_type=arm
99         ;;
100 avr-*-*)
101         cpu_type=avr
102         ;;    
103 bfin*-*)
104         cpu_type=bfin
105         ;;
106 cr16-*-*)
107         ;;
108 crisv32-*-*)
109         cpu_type=cris
110         ;;
111 fido-*-*)
112         cpu_type=m68k
113         ;;
114 frv*)   cpu_type=frv
115         ;;
116 ft32*)  cpu_type=ft32
117         ;;
118 moxie*) cpu_type=moxie
119         ;;
120 i[34567]86-*-*)
121         cpu_type=i386
122         ;;
123 x86_64-*-*)
124         cpu_type=i386
125         ;;
126 ia64-*-*)
127         ;;
128 hppa*-*-*)
129         cpu_type=pa
130         ;;
131 lm32*-*-*)
132         cpu_type=lm32
133         ;;
134 m32r*-*-*)
135         cpu_type=m32r
136         ;;
137 m68k-*-*)
138         ;;
139 microblaze*-*-*)
140         cpu_type=microblaze
141         ;;
142 mips*-*-*)
143         # All MIPS targets provide a full set of FP routines.
144         cpu_type=mips
145         tmake_file="mips/t-mips"
146         if test "${libgcc_cv_mips_hard_float}" = yes; then
147                 tmake_file="${tmake_file} t-hardfp-sfdf t-hardfp"
148         else
149                 tmake_file="${tmake_file} t-softfp-sfdf"
150         fi
151         if test "${ac_cv_sizeof_long_double}" = 16; then
152                 tmake_file="${tmake_file} mips/t-softfp-tf"
153         fi
154         if test "${host_address}" = 64; then
155                 tmake_file="${tmake_file} mips/t-mips64"
156         fi
157         tmake_file="${tmake_file} t-softfp"
158         ;;
159 nds32*-*)
160         cpu_type=nds32
161         ;;
162 nios2*-*-*)
163         cpu_type=nios2
164         ;;
165 powerpc*-*-*)
166         cpu_type=rs6000
167         ;;
168 rs6000*-*-*)
169         ;;
170 riscv*-*-*)
171         cpu_type=riscv
172         ;;
173 sparc64*-*-*)
174         cpu_type=sparc
175         ;;
176 sparc*-*-*)
177         cpu_type=sparc
178         ;;
179 spu*-*-*)
180         cpu_type=spu
181         ;;
182 s390*-*-*)
183         cpu_type=s390
184         ;;
185 # Note the 'l'; we need to be able to match e.g. "shle" or "shl".
186 sh[123456789lbe]*-*-*)
187         cpu_type=sh
188         ;;
189 tilegx*-*-*)
190         cpu_type=tilegx
191         ;;
192 tilepro*-*-*)
193         cpu_type=tilepro
194         ;;
195 v850*-*-*)
196         cpu_type=v850
197         ;;
198 tic6x-*-*)
199         cpu_type=c6x
200         ;;
201 esac
203 # Common parts for widely ported systems.
204 case ${host} in
205 *-*-darwin*)
206   asm_hidden_op=.private_extern
207   tmake_file="$tmake_file t-darwin ${cpu_type}/t-darwin t-libgcc-pic t-slibgcc-darwin"
208   extra_parts="crt3.o crttms.o crttme.o"
209   ;;
210 *-*-dragonfly*)
211   tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip"
212   tmake_file="$tmake_file t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver"
213   extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
214   ;;
215 *-*-freebsd*)
216   # This is the generic ELF configuration of FreeBSD.  Later
217   # machine-specific sections may refine and add to this
218   # configuration.
219   tmake_file="$tmake_file t-freebsd t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver"
220   extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
221   case ${target_thread_file} in
222     posix)
223       tmake_file="${tmake_file} t-freebsd-thread"
224       # Before 5.0, FreeBSD can't bind shared libraries to -lc
225       # when "optionally" threaded via weak pthread_* checks.
226       case ${host} in
227         *-*-freebsd[34] | *-*-freebsd[34].*)
228           tmake_file="${tmake_file} t-slibgcc-nolc-override"
229           ;;
230       esac
231       ;;
232   esac
233   ;;
234 *-*-fuchsia*)
235   tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip t-slibgcc t-slibgcc-fuchsia"
236   extra_parts="crtbegin.o crtend.o"
237   ;;
238 *-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu)
239   tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver t-linux"
240   extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
241   if test x$enable_vtable_verify = xyes; then
242     extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"
243   fi
244   ;;
245 *-*-lynxos*)
246   tmake_file="$tmake_file t-lynx $cpu_type/t-crtstuff t-crtstuff-pic t-libgcc-pic"
247   extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
248   ;;
249 *-*-netbsd*)
250   tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip"
251   tmake_file="$tmake_file t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver"
252   tmake_file="$tmake_file t-slibgcc-libgcc"
253   extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"
254   ;;
255 *-*-openbsd*)
256   tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip"
257   case ${target_thread_file} in
258     posix)
259       tmake_file="$tmake_file t-openbsd-thread"
260       ;;
261   esac
262   ;;
263 *-*-rtems*)
264   tmake_file="$tmake_file t-rtems"
265   extra_parts="crtbegin.o crtend.o"
266   ;;
267 *-*-solaris2*)
268   # Unless linker support and dl_iterate_phdr are present,
269   # unwind-dw2-fde-dip.c automatically falls back to unwind-dw2-fde.c.
270   tmake_file="$tmake_file sol2/t-sol2 t-eh-dw2-dip t-crtstuff-pic t-libgcc-pic t-slibgcc t-slibgcc-elf-ver"
271   if test $with_gnu_ld = yes; then
272     tmake_file="$tmake_file t-slibgcc-gld"
273   else
274     tmake_file="$tmake_file t-slibgcc-sld"
275   fi
276   # Add cpu-specific t-sol2 after t-slibgcc-* so it can augment SHLIB_MAPFILES.
277   tmake_file="$tmake_file $cpu_type/t-sol2"
278   extra_parts="gmon.o crtbegin.o crtend.o"
279   if test "${libgcc_cv_solaris_crts}" = yes; then
280     # Solaris 11.4 provides crt1.o, crti.o, and crtn.o as part of the
281     # base system.  crtp.o and crtpg.o implement the compiler-dependent parts.
282     extra_parts="$extra_parts crtp.o crtpg.o"
283     # If the Solaris CRTs are present, both ld and gld will have PIE support.
284     extra_parts="$extra_parts crtbeginS.o crtendS.o"
285   else
286     case ${host} in
287       i?86-*-solaris2.1[0-9]* | x86_64-*-solaris2.1[0-9]*)
288         # Solaris 10+/x86 provides crt1.o, crti.o, crtn.o, and gcrt1.o as
289         # part of the base system.
290         ;;
291       sparc*-*-solaris2.1[0-9]*)
292         # Solaris 10+/SPARC lacks crt1.o and gcrt1.o.
293         extra_parts="$extra_parts crt1.o gcrt1.o"
294         ;;
295     esac
296   fi
297   if test x$enable_vtable_verify = xyes; then
298     extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"
299   fi
300   ;;
301 *-*-uclinux*)
302   extra_parts="crtbegin.o crtend.o"
303   ;;
304 *-*-*vms*)
305   tmake_file="vms/t-vms"
306   extra_parts="crt0.o crtbegin.o crtbeginS.o crtend.o crtendS.o"
307   ;;
308 *-*-vxworks7*)
309   tmake_file=t-vxworks7
310   ;;
311 *-*-vxworks*)
312   tmake_file=t-vxworks
313   ;;
314 *-*-elf)
315   extra_parts="crtbegin.o crtend.o"
316   ;;
317 esac
319 case ${host} in
320 *-*-darwin* | *-*-dragonfly* | *-*-freebsd* | *-*-netbsd* | *-*-openbsd* | \
321   *-*-solaris2*)
322   enable_execute_stack=enable-execute-stack-mprotect.c
323   ;;
324 i[34567]86-*-mingw* | x86_64-*-mingw*)
325   enable_execute_stack=config/i386/enable-execute-stack-mingw32.c
326   ;;
327 i[34567]86-*-cygwin* | x86_64-*-cygwin*)
328   enable_execute_stack=config/i386/enable-execute-stack-mingw32.c
329   ;;
331   enable_execute_stack=enable-execute-stack-empty.c;
332   ;;
333 esac
335 case ${host} in
336 aarch64*-*-elf | aarch64*-*-rtems*)
337         extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o"
338         extra_parts="$extra_parts crtfastmath.o"
339         tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
340         tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
341         md_unwind_header=aarch64/aarch64-unwind.h
342         ;;
343 aarch64*-*-freebsd*)
344         extra_parts="$extra_parts crtfastmath.o"
345         tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
346         tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
347         md_unwind_header=aarch64/freebsd-unwind.h
348         ;;
349 aarch64*-*-fuchsia*)
350         tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
351         tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp"
352         ;;
353 aarch64*-*-linux*)
354         extra_parts="$extra_parts crtfastmath.o"
355         md_unwind_header=aarch64/linux-unwind.h
356         tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
357         tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
358         ;;
359 alpha*-*-linux*)
360         tmake_file="${tmake_file} alpha/t-alpha alpha/t-ieee t-crtfm alpha/t-linux"
361         extra_parts="$extra_parts crtfastmath.o"
362         md_unwind_header=alpha/linux-unwind.h
363         ;;
364 alpha*-*-freebsd*)
365         tmake_file="${tmake_file} alpha/t-alpha alpha/t-ieee t-crtfm"
366         extra_parts="$extra_parts crtbeginT.o crtfastmath.o"
367         ;;
368 alpha*-*-netbsd*)
369         tmake_file="${tmake_file} alpha/t-alpha alpha/t-ieee"
370         ;;
371 alpha*-*-openbsd*)
372         tmake_file="${tmake_file} alpha/t-alpha alpha/t-ieee"
373         ;;
374 alpha64-dec-*vms*)
375         tmake_file="$tmake_file alpha/t-alpha alpha/t-ieee alpha/t-vms t-slibgcc-vms"
376         extra_parts="$extra_parts vms-dwarf2.o vms-dwarf2eh.o"
377         md_unwind_header=alpha/vms-unwind.h
378         ;;
379 alpha*-dec-*vms*)
380         tmake_file="$tmake_file alpha/t-alpha alpha/t-ieee alpha/t-vms t-slibgcc-vms"
381         extra_parts="$extra_parts vms-dwarf2.o vms-dwarf2eh.o"
382         md_unwind_header=alpha/vms-unwind.h
383         ;;
384 arc*-*-elf*)
385         tmake_file="arc/t-arc"
386         extra_parts="crti.o crtn.o crtend.o crtbegin.o crtendS.o crtbeginS.o"
387         extra_parts="$extra_parts crttls.o"
388         ;;
389 arc*-*-linux*)
390         tmake_file="${tmake_file} t-slibgcc-libgcc t-slibgcc-nolc-override arc/t-arc-uClibc arc/t-arc"
391         extra_parts="$extra_parts crti.o crtn.o"
392         extra_parts="$extra_parts crttls.o"
393         md_unwind_header=arc/linux-unwind.h
394         ;;
395 arm-wrs-vxworks|arm-wrs-vxworks7)
396         tmake_file="$tmake_file arm/t-arm arm/t-elf t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp"
397         extra_parts="$extra_parts crti.o crtn.o"
398         case ${host} in
399         *-*-vxworks7)
400           # Note that arm/t-bpabi will reset the LIB2ADDEH macro.
401           # This is intentional.
402           tmake_file="$tmake_file arm/t-bpabi arm/t-vxworks7"
403           tm_file="$tm_file arm/bpabi-lib.h"
404           unwind_header=config/arm/unwind-arm.h
405           ;;
406         esac
407         ;;
408 arm*-*-freebsd*)                # ARM FreeBSD EABI
409         tmake_file="${tmake_file} arm/t-arm t-fixedpoint-gnu-prefix arm/t-elf"
410         tmake_file="${tmake_file} arm/t-bpabi arm/t-freebsd"
411         tm_file="${tm_file} arm/bpabi-lib.h"
412         unwind_header=config/arm/unwind-arm.h
413         tmake_file="${tmake_file} t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp"
414         ;;
415 arm*-*-fuchsia*)
416         tmake_file="${tmake_file} arm/t-arm arm/t-elf arm/t-bpabi"
417         tmake_file="${tmake_file} arm/tsoftfp t-softfp"
418         tm_file="${tm_file} arm/bpabi-lib.h"
419         unwind_header=config/arm/unwind-arm.h
420         ;;
421 arm*-*-netbsdelf*)
422         tmake_file="$tmake_file arm/t-arm arm/t-netbsd t-slibgcc-gld-nover"
423         ;;
424 arm*-*-linux*)                  # ARM GNU/Linux with ELF
425         tmake_file="${tmake_file} arm/t-arm t-fixedpoint-gnu-prefix t-crtfm"
426         tmake_file="${tmake_file} arm/t-elf arm/t-bpabi arm/t-linux-eabi t-slibgcc-libgcc"
427         tm_file="$tm_file arm/bpabi-lib.h"
428         unwind_header=config/arm/unwind-arm.h
429         tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp"
430         extra_parts="$extra_parts crtfastmath.o"
431         ;;
432 arm*-*-uclinux*)                # ARM ucLinux
433         tmake_file="${tmake_file} t-fixedpoint-gnu-prefix t-crtfm"
434         tmake_file="$tmake_file arm/t-arm arm/t-elf t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp"
435         tmake_file="${tmake_file} arm/t-bpabi"
436         tm_file="$tm_file arm/bpabi-lib.h"
437         unwind_header=config/arm/unwind-arm.h
438         extra_parts="$extra_parts crti.o crtn.o"
439         ;;
440 arm*-*-phoenix*)
441         tmake_file="t-hardfp t-softfp arm/t-arm arm/t-elf arm/t-softfp arm/t-phoenix"
442         tmake_file="${tmake_file} arm/t-bpabi"
443         tm_file="$tm_file arm/bpabi-lib.h"
444         extra_parts="crtbegin.o crtend.o crti.o crtn.o"
445         unwind_header=config/arm/unwind-arm.h
446         ;;
447 arm*-*-eabi* | arm*-*-symbianelf* | arm*-*-rtems*)
448         tmake_file="${tmake_file} arm/t-arm arm/t-elf t-fixedpoint-gnu-prefix"
449         tm_file="$tm_file arm/bpabi-lib.h"
450         case ${host} in
451         arm*-*-eabi* | arm*-*-rtems*)
452           tmake_file="${tmake_file} arm/t-bpabi t-crtfm"
453           extra_parts="crtbegin.o crtend.o crti.o crtn.o"
454           ;;
455         arm*-*-symbianelf*)
456           tmake_file="${tmake_file} arm/t-symbian t-slibgcc-nolc-override"
457           tm_file="$tm_file arm/symbian-lib.h"
458           # Symbian OS provides its own startup code.
459           ;;
460         esac
461         tmake_file="$tmake_file t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp"
462         extra_parts="$extra_parts crtfastmath.o"
463         unwind_header=config/arm/unwind-arm.h
464         ;;
465 avr-*-*)
466         # Make HImode functions for AVR
467         tmake_file="${cpu_type}/t-avr t-fpbit"
468         if test x${with_avrlibc} != xno; then
469             tmake_file="$tmake_file ${cpu_type}/t-avrlibc"
470         fi
471         tm_file="$tm_file avr/avr-lib.h"
472         ;;
473 bfin*-elf*)
474         tmake_file="bfin/t-bfin bfin/t-crtlibid bfin/t-crtstuff t-libgcc-pic t-fdpbit"
475         extra_parts="$extra_parts crtbeginS.o crtendS.o crti.o crtn.o crtlibid.o"
476         ;;
477 bfin*-uclinux*)
478         tmake_file="bfin/t-bfin bfin/t-crtlibid bfin/t-crtstuff t-libgcc-pic t-fdpbit"
479         extra_parts="$extra_parts crtbeginS.o crtendS.o crtlibid.o"
480         md_unwind_header=bfin/linux-unwind.h
481         ;;
482 bfin*-linux-uclibc*)
483         tmake_file="$tmake_file bfin/t-bfin bfin/t-crtstuff t-libgcc-pic t-fdpbit bfin/t-linux"
484         # No need to build crtbeginT.o on uClibc systems.  Should probably
485         # be moved to the OS specific section above.
486         extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
487         md_unwind_header=bfin/linux-unwind.h
488         ;;
489 bfin*-rtems*)
490         tmake_file="$tmake_file bfin/t-bfin t-fdpbit"
491         extra_parts="$extra_parts crti.o crtn.o"
492         ;;
493 bfin*-*)
494         tmake_file="$tmake_file bfin/t-bfin t-fdpbit"
495         extra_parts="crtbegin.o crtend.o crti.o crtn.o"
496         ;;
497 cr16-*-elf)
498         tmake_file="${tmake_file} cr16/t-cr16 cr16/t-crtlibid t-fdpbit"
499         extra_parts="$extra_parts crti.o crtn.o crtlibid.o"
500         ;;
501 crisv32-*-elf)
502         tmake_file="$tmake_file cris/t-cris t-softfp-sfdf t-softfp"
503         ;;
504 cris-*-elf)
505         tmake_file="$tmake_file cris/t-cris t-softfp-sfdf t-softfp cris/t-elfmulti"
506         ;;
507 cris-*-linux* | crisv32-*-linux*)
508         tmake_file="$tmake_file cris/t-cris t-softfp-sfdf t-softfp cris/t-linux"
509         ;;
510 epiphany-*-elf* | epiphany-*-rtems*)
511         tmake_file="$tmake_file epiphany/t-epiphany t-fdpbit epiphany/t-custom-eqsf"
512         extra_parts="$extra_parts crti.o crtint.o crtrunc.o crtm1reg-r43.o crtm1reg-r63.o crtn.o"
513         ;;
514 fr30-*-elf)
515         tmake_file="$tmake_file fr30/t-fr30 t-fdpbit"
516         extra_parts="$extra_parts crti.o crtn.o"
517         ;;
518 frv-*-elf)
519         tmake_file="$tmake_file frv/t-frv t-fdpbit"
520         tm_file="$tm_file frv/elf-lib.h frv/frv-abi.h"
521         # Don't use crtbegin.o, crtend.o.
522         extra_parts="frvbegin.o frvend.o"
523         ;;
524 frv-*-*linux*)
525         tmake_file="$tmake_file frv/t-frv frv/t-linux t-fdpbit"
526         tm_file="$tm_file frv/elf-lib.h frv/frv-abi.h"
527         ;;
528 ft32-*-elf)
529         tmake_file="ft32/t-ft32 t-softfp-sfdf t-softfp-excl t-softfp"
530         extra_parts="$extra_parts crti.o crti-hw.o crtn.o"
531         ;;
532 h8300-*-elf*)
533         tmake_file="$tmake_file h8300/t-h8300 t-fpbit"
534         tm_file="$tm_file h8300/h8300-lib.h"
535         extra_parts="$extra_parts crti.o crtn.o"
536         ;;
537 h8300-*-linux*)
538         tmake_file="t-linux h8300/t-linux t-softfp-sfdf t-softfp"
539         tm_file="$tm_file h8300/h8300-lib.h"
540         ;;
541 hppa*64*-*-linux*)
542         tmake_file="$tmake_file pa/t-linux pa/t-linux64"
543         extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
544         ;;
545 hppa*-*-linux*)
546         tmake_file="$tmake_file pa/t-linux t-slibgcc-libgcc"
547         # Set the libgcc version number
548         if test x$ac_cv_sjlj_exceptions = xyes; then
549             tmake_file="$tmake_file pa/t-slibgcc-sjlj-ver"
550         else
551             tmake_file="$tmake_file pa/t-slibgcc-dwarf-ver"
552         fi
553         extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
554         md_unwind_header=pa/linux-unwind.h
555         ;;
556 hppa[12]*-*-hpux10*)
557         tmake_file="$tmake_file pa/t-hpux pa/t-hpux10 t-libgcc-pic t-slibgcc"
558         # Set the libgcc version number
559         if test x$ac_cv_sjlj_exceptions = xyes; then
560             tmake_file="$tmake_file pa/t-slibgcc-sjlj-ver"
561         else
562             tmake_file="$tmake_file pa/t-slibgcc-dwarf-ver"
563         fi
564         tmake_file="$tmake_file pa/t-slibgcc-hpux t-slibgcc-hpux"
565         md_unwind_header=pa/hpux-unwind.h
566         ;;
567 hppa*64*-*-hpux11*)
568         tmake_file="$tmake_file pa/t-hpux pa/t-pa64 pa/t-stublib t-libgcc-pic t-slibgcc"
569         # Set the libgcc version number
570         if test x$ac_cv_sjlj_exceptions = xyes; then
571             tmake_file="$tmake_file pa/t-slibgcc-sjlj-ver"
572         else
573             tmake_file="$tmake_file pa/t-slibgcc-dwarf-ver"
574         fi
575         tmake_file="$tmake_file pa/t-slibgcc-hpux t-slibgcc-hpux"
576         tm_file="$tm_file pa/pa64-hpux-lib.h"
577         extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o \
578                      libgcc_stub.a"
579         md_unwind_header=pa/hpux-unwind.h
580         ;;
581 hppa[12]*-*-hpux11*)
582         tmake_file="$tmake_file pa/t-hpux pa/t-stublib t-libgcc-pic t-slibgcc"
583         # Set the libgcc version number
584         if test x$ac_cv_sjlj_exceptions = xyes; then
585             tmake_file="$tmake_file pa/t-slibgcc-sjlj-ver"
586         else
587             tmake_file="$tmake_file pa/t-slibgcc-dwarf-ver"
588         fi
589         tmake_file="$tmake_file pa/t-slibgcc-hpux t-slibgcc-hpux"
590         extra_parts="libgcc_stub.a"
591         md_unwind_header=pa/hpux-unwind.h
592         ;;
593 hppa*-*-openbsd*)
594         tmake_file="$tmake_file pa/t-openbsd"
595         ;;
596 i[34567]86-*-darwin*)
597         tmake_file="$tmake_file i386/t-crtpc t-crtfm i386/t-msabi"
598         tm_file="$tm_file i386/darwin-lib.h"
599         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
600         ;;
601 x86_64-*-darwin*)
602         tmake_file="$tmake_file i386/t-crtpc t-crtfm i386/t-msabi"
603         tm_file="$tm_file i386/darwin-lib.h"
604         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
605         ;;
606 i[34567]86-*-elfiamcu)
607         tmake_file="$tmake_file i386/t-crtstuff t-softfp-sfdftf i386/32/t-softfp i386/32/t-iamcu i386/t-softfp t-softfp t-dfprules"
608         ;;
609 i[34567]86-*-elf*)
610         tmake_file="$tmake_file i386/t-crtstuff t-crtstuff-pic t-libgcc-pic"
611         ;;
612 x86_64-*-elf* | x86_64-*-rtems*)
613         tmake_file="$tmake_file i386/t-crtstuff t-crtstuff-pic t-libgcc-pic"
614         case ${host} in
615           x86_64-*-rtems*)
616             extra_parts="$extra_parts crti.o crtn.o"
617             ;;
618         esac
619         ;;
620 x86_64-*-fuchsia*)
621         tmake_file="$tmake_file t-libgcc-pic"
622         ;;
623 i[34567]86-*-dragonfly*)
624         tmake_file="${tmake_file} i386/t-dragonfly i386/t-crtstuff"
625         md_unwind_header=i386/dragonfly-unwind.h
626         ;;
627 x86_64-*-dragonfly*)
628         tmake_file="${tmake_file} i386/t-dragonfly i386/t-crtstuff"
629         md_unwind_header=i386/dragonfly-unwind.h
630         ;;
631 i[34567]86-*-freebsd*)
632         tmake_file="${tmake_file} i386/t-freebsd i386/t-crtstuff"
633         md_unwind_header=i386/freebsd-unwind.h
634         ;;
635 x86_64-*-freebsd*)
636         tmake_file="${tmake_file} i386/t-freebsd i386/t-crtstuff"
637         md_unwind_header=i386/freebsd-unwind.h
638         ;;
639 i[34567]86-*-netbsdelf*)
640         tmake_file="${tmake_file} i386/t-crtstuff"
641         ;;
642 x86_64-*-netbsd*)
643         tmake_file="${tmake_file} i386/t-crtstuff"
644         ;;
645 i[34567]86-*-openbsd*)
646         ;;
647 x86_64-*-openbsd*)
648         ;;
649 i[34567]86-*-linux*)
650         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
651         tmake_file="${tmake_file} i386/t-crtpc t-crtfm i386/t-crtstuff t-dfprules"
652         tm_file="${tm_file} i386/elf-lib.h"
653         md_unwind_header=i386/linux-unwind.h
654         ;;
655 i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-gnu* | i[34567]86-*-kopensolaris*-gnu)
656         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
657         tmake_file="${tmake_file} i386/t-crtpc t-crtfm i386/t-crtstuff t-dfprules"
658         tm_file="${tm_file} i386/elf-lib.h"
659         ;;
660 x86_64-*-linux*)
661         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
662         tmake_file="${tmake_file} i386/t-crtpc t-crtfm i386/t-crtstuff t-dfprules"
663         tm_file="${tm_file} i386/elf-lib.h"
664         md_unwind_header=i386/linux-unwind.h
665         ;;
666 x86_64-*-kfreebsd*-gnu)
667         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
668         tmake_file="${tmake_file} i386/t-crtpc t-crtfm i386/t-crtstuff t-dfprules"
669         tm_file="${tm_file} i386/elf-lib.h"
670         ;;
671 i[34567]86-pc-msdosdjgpp*)
672         ;;
673 i[34567]86-*-lynxos*)
674         ;;
675 i[34567]86-*-nto-qnx*)
676         tmake_file="$tmake_file i386/t-nto t-libgcc-pic"
677         extra_parts=crtbegin.o
678         ;;
679 i[34567]86-*-rtems*)
680         tmake_file="$tmake_file i386/t-crtstuff t-softfp-sfdftf i386/32/t-softfp i386/t-softfp t-softfp"
681         extra_parts="$extra_parts crti.o crtn.o"
682         ;;
683 i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
684         tmake_file="$tmake_file i386/t-crtpc t-crtfm i386/t-msabi"
685         extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
686         tm_file="${tm_file} i386/elf-lib.h"
687         md_unwind_header=i386/sol2-unwind.h
688         ;;
689 i[4567]86-wrs-vxworks|i[4567]86-wrs-vxworksae|i[4567]86-wrs-vxworks7|x86_64-wrs-vxworks7)
690         ;;
691 i[34567]86-*-cygwin*)
692         extra_parts="crtbegin.o crtbeginS.o crtend.o crtfastmath.o"
693         if test x$enable_vtable_verify = xyes; then
694                 extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"
695         fi
696         # This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h
697         if test x$ac_cv_sjlj_exceptions = xyes; then
698                 tmake_eh_file="i386/t-sjlj-eh"
699         else
700                 tmake_eh_file="i386/t-dw2-eh"
701         fi
702         # Shared libgcc DLL install dir depends on cross/native build.
703         if test x${build} = x${host} ; then
704                 tmake_dlldir_file="i386/t-dlldir"
705         else
706                 tmake_dlldir_file="i386/t-dlldir-x"
707         fi
708         tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-cygwin t-crtfm i386/t-chkstk t-dfprules"
709         ;;
710 x86_64-*-cygwin*)
711         extra_parts="crtbegin.o crtbeginS.o crtend.o crtfastmath.o"
712         if test x$enable_vtable_verify = xyes; then
713                 extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"
714         fi
715         # This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h
716         if test x$ac_cv_sjlj_exceptions = xyes; then
717                 tmake_eh_file="i386/t-sjlj-eh"
718         elif test "${host_address}" = 32; then
719                 # biarch -m32 with --disable-sjlj-exceptions
720                 tmake_eh_file="i386/t-dw2-eh"
721         else
722                 tmake_eh_file="i386/t-seh-eh"
723         fi
724         # Shared libgcc DLL install dir depends on cross/native build.
725         if test x${build} = x${host} ; then
726                 tmake_dlldir_file="i386/t-dlldir"
727         else
728                 tmake_dlldir_file="i386/t-dlldir-x"
729         fi
730         # FIXME - dj - t-chkstk used to be in here, need a 64-bit version of that
731         tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-cygwin t-crtfm t-dfprules i386/t-chkstk"
732         ;;
733 i[34567]86-*-mingw*)
734         extra_parts="crtbegin.o crtend.o crtfastmath.o"
735         if test x$enable_vtable_verify = xyes; then
736                 extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"
737         fi
738         case ${target_thread_file} in
739           win32)
740             tmake_file="$tmake_file i386/t-gthr-win32"
741             ;;
742           posix)
743             tmake_file="i386/t-mingw-pthread $tmake_file"
744             ;;
745         esac
746         # This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h
747         if test x$ac_cv_sjlj_exceptions = xyes; then
748                 tmake_eh_file="i386/t-sjlj-eh"
749         else
750                 tmake_eh_file="i386/t-dw2-eh"
751                 md_unwind_header=i386/w32-unwind.h
752         fi
753         # Shared libgcc DLL install dir depends on cross/native build.
754         if test x${build} = x${host} ; then
755                 tmake_dlldir_file="i386/t-dlldir"
756         else
757                 tmake_dlldir_file="i386/t-dlldir-x"
758         fi
759         tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-mingw32 t-crtfm i386/t-chkstk t-dfprules"
760         ;;
761 x86_64-*-mingw*)
762         case ${target_thread_file} in
763           win32)
764             tmake_file="$tmake_file i386/t-gthr-win32"
765             ;;
766           posix)
767             tmake_file="i386/t-mingw-pthread $tmake_file"
768             ;;
769         esac
770         # This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h
771         if test x$ac_cv_sjlj_exceptions = xyes; then
772                 tmake_eh_file="i386/t-sjlj-eh"
773         elif test "${host_address}" = 32; then
774                 # biarch -m32 with --disable-sjlj-exceptions
775                 tmake_eh_file="i386/t-dw2-eh"
776                 md_unwind_header=i386/w32-unwind.h
777         else
778                 tmake_eh_file="i386/t-seh-eh"
779         fi
780         # Shared libgcc DLL install dir depends on cross/native build.
781         if test x${build} = x${host} ; then
782                 tmake_dlldir_file="i386/t-dlldir"
783         else
784                 tmake_dlldir_file="i386/t-dlldir-x"
785         fi
786         tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-mingw32 t-dfprules t-crtfm i386/t-chkstk"
787         extra_parts="$extra_parts crtbegin.o crtend.o crtfastmath.o"
788         if test x$enable_vtable_verify = xyes; then
789                 extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"
790         fi
791         ;;
792 ia64*-*-elf*)
793         extra_parts="$extra_parts crtbeginS.o crtendS.o crtfastmath.o"
794         tmake_file="ia64/t-ia64 ia64/t-ia64-elf ia64/t-eh-ia64 t-crtfm t-softfp-tf ia64/t-softfp t-softfp ia64/t-softfp-compat"
795         ;;
796 ia64*-*-freebsd*)
797         extra_parts="$extra_parts crtfastmath.o"
798         tmake_file="$tmake_file ia64/t-ia64 ia64/t-ia64-elf ia64/t-eh-ia64 t-crtfm t-softfp-tf ia64/t-softfp t-softfp ia64/t-softfp-compat"
799         ;;
800 ia64*-*-linux*)
801         # Don't use crtbeginT.o from *-*-linux* default.
802         extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o"
803         tmake_file="$tmake_file ia64/t-ia64 ia64/t-ia64-elf t-crtfm t-softfp-tf ia64/t-softfp t-softfp ia64/t-softfp-compat ia64/t-eh-ia64 t-libunwind ia64/t-linux"
804         if test x$with_system_libunwind != xyes ; then
805                 tmake_file="${tmake_file} t-libunwind-elf ia64/t-linux-libunwind"
806         fi
807         md_unwind_header=ia64/linux-unwind.h
808         ;;
809 ia64*-*-hpux*)
810         tmake_file="ia64/t-ia64 ia64/t-ia64-elf ia64/t-hpux t-slibgcc ia64/t-slibgcc-hpux t-slibgcc-hpux"
811         ;;
812 ia64-hp-*vms*)
813         tmake_file="$tmake_file ia64/t-ia64 ia64/t-eh-ia64 ia64/t-vms t-slibgcc-vms t-softfp-tf ia64/t-softfp t-softfp"
814         extra_parts="$extra_parts crtinitS.o"
815         md_unwind_header=ia64/vms-unwind.h
816         ;;
817 iq2000*-*-elf*)
818         tmake_file="iq2000/t-iq2000 t-fdpbit"
819         # Don't use default.
820         extra_parts=
821         ;;
822 lm32-*-elf*)
823         extra_parts="$extra_parts crti.o crtn.o"
824         tmake_file="lm32/t-lm32 lm32/t-elf t-softfp-sfdf t-softfp"
825         ;;
826 lm32-*-rtems*)
827         tmake_file="$tmake_file lm32/t-lm32 lm32/t-elf t-softfp-sfdf t-softfp"
828         extra_parts="$extra_parts crti.o crtn.o"
829         ;;
830 lm32-*-uclinux*)
831         extra_parts="$extra_parts crtbegin.o crtendS.o crtbeginT.o"
832         tmake_file="lm32/t-lm32 lm32/t-uclinux t-libgcc-pic t-softfp-sfdf t-softfp"
833         ;;      
834 m32r-*-elf*)
835         tmake_file="$tmake_file m32r/t-m32r t-fdpbit"
836         extra_parts="$extra_parts crtinit.o crtfini.o"
837         ;;
838 m32rle-*-elf*)
839         tmake_file=t-fdpbit
840         ;;
841 m32r-*-linux*)
842         tmake_file="$tmake_file m32r/t-linux t-fdpbit"
843         ;;
844 m32rle-*-linux*)
845         tmake_file="$tmake_file m32r/t-linux t-fdpbit"
846         ;;
847 m68k-*-elf* | fido-*-elf)
848         tmake_file="$tmake_file m68k/t-floatlib"
849         ;;
850 m68k*-*-netbsdelf*)
851         ;;
852 m68k*-*-openbsd*)
853         ;;
854 m68k-*-uclinux*)        # Motorola m68k/ColdFire running uClinux with uClibc
855         tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
856         md_unwind_header=m68k/linux-unwind.h
857         ;;
858 m68k-*-linux*)                  # Motorola m68k's running GNU/Linux
859                                 # with ELF format using glibc 2
860                                 # aka the GNU/Linux C library 6.
861         tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
862         # If not configured with setjmp/longjmp exceptions, bump the
863         # libgcc version number.
864         if test x$ac_cv_sjlj_exceptions != xyes; then
865             tmake_file="$tmake_file m68k/t-slibgcc-elf-ver"
866         fi
867         md_unwind_header=m68k/linux-unwind.h
868         ;;
869 m68k-*-rtems*)
870         tmake_file="$tmake_file m68k/t-floatlib"
871         extra_parts="$extra_parts crti.o crtn.o"
872         ;;
873 mcore-*-elf)
874         tmake_file="mcore/t-mcore t-fdpbit"
875         extra_parts="$extra_parts crti.o crtn.o"
876         ;;
877 microblaze*-linux*)
878         tmake_file="${tmake_file} microblaze/t-microblaze t-fdpbit t-slibgcc-libgcc"
879         ;;
880 microblaze*-*-elf)
881         tmake_file="${tmake_file} microblaze/t-microblaze t-fdpbit"
882         extra_parts="$extra_parts crtbeginS.o crtendS.o crtbeginT.o crti.o crtn.o"
883         ;;
884 microblaze*-*-rtems*)
885         tmake_file="${tmake_file} microblaze/t-microblaze t-fdpbit"
886         extra_parts="$extra_parts crtbeginS.o crtendS.o crtbeginT.o crti.o crtn.o"
887         ;;
888 mips*-*-netbsd*)                        # NetBSD/mips, either endian.
889         ;;
890 mips*-*-linux*)                         # Linux MIPS, either endian.
891         extra_parts="$extra_parts crtfastmath.o"
892         tmake_file="${tmake_file} t-crtfm"
893         case ${host} in
894           mips64r5900* | mipsr5900*)
895             # The MIPS16 support code uses floating point
896             # instructions that are not supported on r5900.
897             ;;
898           *)
899             tmake_file="${tmake_file} mips/t-mips16 t-slibgcc-libgcc"
900             ;;
901         esac
902         md_unwind_header=mips/linux-unwind.h
903         ;;
904 mips*-sde-elf*)
905         tmake_file="$tmake_file mips/t-crtstuff mips/t-mips16"
906         case "${with_newlib}" in
907           yes)
908             # newlib / libgloss.
909             ;;
910           *)
911             # MIPS toolkit libraries.
912             tmake_file="$tmake_file mips/t-sdemtk"
913             ;;
914         esac
915         extra_parts="$extra_parts crti.o crtn.o"
916         ;;
917 mipsisa32-*-elf* | mipsisa32el-*-elf* | \
918 mipsisa32r2-*-elf* | mipsisa32r2el-*-elf* | \
919 mipsisa32r6-*-elf* | mipsisa32r6el-*-elf* | \
920 mipsisa64-*-elf* | mipsisa64el-*-elf* | \
921 mipsisa64r2-*-elf* | mipsisa64r2el-*-elf* | \
922 mipsisa64r6-*-elf* | mipsisa64r6el-*-elf*)
923         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff mips/t-mips16"
924         extra_parts="$extra_parts crti.o crtn.o"
925         ;;
926 mipsisa64sr71k-*-elf*)
927         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff t-fdpbit"
928         extra_parts="$extra_parts crti.o crtn.o"
929         ;;
930 mipsisa64sb1-*-elf* | mipsisa64sb1el-*-elf*)
931         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff mips/t-mips16"
932         extra_parts="$extra_parts crti.o crtn.o"
933         ;;
934 mips-*-elf* | mipsel-*-elf*)
935         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff mips/t-mips16"
936         extra_parts="$extra_parts crti.o crtn.o"
937         ;;
938 mipsr5900-*-elf* | mipsr5900el-*-elf*)
939         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff"
940         extra_parts="$extra_parts crti.o crtn.o"
941         ;;
942 mips64-*-elf* | mips64el-*-elf*)
943         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff mips/t-mips16"
944         extra_parts="$extra_parts crti.o crtn.o"
945         ;;
946 mips64r5900-*-elf* | mips64r5900el-*-elf*)
947         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff"
948         extra_parts="$extra_parts crti.o crtn.o"
949         ;;
950 mips64vr-*-elf* | mips64vrel-*-elf*)
951         tmake_file="$tmake_file mips/t-elf mips/t-vr mips/t-crtstuff"
952         extra_parts="$extra_parts crti.o crtn.o"
953         ;;
954 mips64orion-*-elf* | mips64orionel-*-elf*)
955         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff mips/t-mips16"
956         extra_parts="$extra_parts crti.o crtn.o"
957         ;;
958 mips*-*-rtems*)
959         tmake_file="$tmake_file mips/t-elf mips/t-crtstuff mips/t-mips16"
960         extra_parts="$extra_parts crti.o crtn.o"
961         ;;
962 mips-wrs-vxworks)
963         ;;
964 mipstx39-*-elf* | mipstx39el-*-elf*)
965         tmake_file="$tmake_file mips/t-crtstuff mips/t-mips16"
966         ;;
967 mmix-knuth-mmixware)
968         extra_parts="crti.o crtn.o crtbegin.o crtend.o"
969         tmake_file="${tmake_file} ${cpu_type}/t-${cpu_type}"
970         ;;
971 mn10300-*-*)
972         tmake_file=t-fdpbit
973         ;;
974 moxie-*-elf | moxie-*-moxiebox* | moxie-*-uclinux* | moxie-*-rtems*)
975         tmake_file="$tmake_file moxie/t-moxie t-softfp-sfdf t-softfp-excl t-softfp"
976         extra_parts="$extra_parts crti.o crtn.o crtbegin.o crtend.o"
977         ;;
978 msp430*-*-elf)
979         tmake_file="$tm_file t-crtstuff t-fdpbit msp430/t-msp430"
980         extra_parts="$extra_parts libmul_none.a libmul_16.a libmul_32.a libmul_f5.a"
981         ;;
982 nds32*-elf*)
983         # Basic makefile fragment and extra_parts for crt stuff.
984         # We also append c-isr library implementation.
985         tmake_file="${tmake_file} nds32/t-nds32 nds32/t-nds32-isr"
986         extra_parts="crtbegin1.o crtend1.o libnds32_isr.a"
987         # Append library definition makefile fragment according to --with-nds32-lib=X setting.
988         case "${with_nds32_lib}" in
989         "" | newlib)
990                 # Append library definition makefile fragment t-nds32-newlib.
991                 # Append 'soft-fp' software floating point make rule fragment provided by gcc.
992                 tmake_file="${tmake_file} nds32/t-nds32-newlib t-softfp-sfdf t-softfp"
993                 ;;
994         mculib)
995                 # Append library definition makefile fragment t-nds32-mculib.
996                 # The software floating point library is included in mculib.
997                 tmake_file="${tmake_file} nds32/t-nds32-mculib"
998                 ;;
999         *)
1000                 echo "Cannot accept --with-nds32-lib=$with_nds32_lib, available values are: newlib mculib" 1>&2
1001                 exit 1
1002                 ;;
1003         esac
1004         ;;
1005 nios2-*-linux*)
1006         tmake_file="$tmake_file nios2/t-nios2 nios2/t-linux t-libgcc-pic t-slibgcc-libgcc"
1007         md_unwind_header=nios2/linux-unwind.h
1008         ;;
1009 nios2-*-*)
1010         tmake_file="$tmake_file nios2/t-nios2 t-softfp-sfdf t-softfp-excl t-softfp"
1011         extra_parts="$extra_parts crti.o crtn.o"
1012         ;;
1013 pdp11-*-*)
1014         tmake_file="pdp11/t-pdp11 t-fdpbit"
1015         ;;
1016 powerpc-*-darwin*)
1017         case ${host} in
1018         *-*-darwin9* | *-*-darwin[12][0-9]*)
1019           # libSystem contains unwind information for signal frames since
1020           # Darwin 9.
1021           ;;
1022         *)
1023           md_unwind_header=rs6000/darwin-unwind.h
1024           ;;
1025         esac
1026         tmake_file="$tmake_file rs6000/t-ibm-ldouble"
1027         extra_parts="$extra_parts crt2.o"
1028         ;;
1029 powerpc64-*-darwin*)
1030         tmake_file="$tmake_file rs6000/t-darwin64 rs6000/t-ibm-ldouble"
1031         extra_parts="$extra_parts crt2.o"
1032         ;;
1033 powerpc*-*-freebsd*)
1034         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff rs6000/t-freebsd t-softfp-sfdf t-softfp-excl t-softfp"
1035         extra_parts="$extra_parts crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1036         case ${host} in
1037         powerpc64*)
1038           tmake_file="${tmake_file} rs6000/t-freebsd64"
1039           md_unwind_header=rs6000/freebsd-unwind.h
1040           ;;
1041         esac
1042         ;;
1043 powerpc-*-netbsd*)
1044         tmake_file="$tmake_file rs6000/t-netbsd rs6000/t-crtstuff"
1045         ;;
1046 powerpc-*-eabispe*)
1047         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1048         extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1049         ;;
1050 powerpc-*-eabisimaltivec*)
1051         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1052         extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1053         ;;
1054 powerpc-*-eabisim*)
1055         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1056         extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1057         ;;
1058 powerpc-*-elf*)
1059         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1060         extra_parts="$extra_parts crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1061         ;;
1062 powerpc-*-eabialtivec*)
1063         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1064         extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1065         ;;
1066 powerpc-xilinx-eabi*)
1067         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1068         extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1069         ;;
1070 powerpc-*-eabi*)
1071         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1072         extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1073         ;;
1074 powerpc-*-rtems*)
1075         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1076         extra_parts="$extra_parts crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1077         ;;
1078 powerpc*-*-linux*)
1079         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff rs6000/t-linux t-dfprules rs6000/t-ppc64-fp t-slibgcc-libgcc"
1080         tmake_file="${tmake_file} t-stack rs6000/t-stack-rs6000"
1081         case $ppc_fp_type in
1082         64)
1083                 ;;
1084         hard)
1085                 tmake_file="${tmake_file} t-hardfp-sfdf t-hardfp"
1086                 ;;
1087         soft)
1088                 tmake_file="${tmake_file} t-softfp-sfdf ${ppc_fp_compat} t-softfp"
1089                 ;;
1090         e500v1)
1091                 tmake_file="${tmake_file} rs6000/t-e500v1-fp ${ppc_fp_compat} t-softfp t-hardfp"
1092                 ;;
1093         e500v2)
1094                 tmake_file="${tmake_file} t-hardfp-sfdf rs6000/t-e500v2-fp ${ppc_fp_compat} t-softfp t-hardfp"
1095                 ;;
1096         *)
1097                 echo "Unknown ppc_fp_type $ppc_fp_type" 1>&2
1098                 exit 1
1099                 ;;
1100         esac
1102         if test $libgcc_cv_powerpc_float128 = yes; then
1103                 tmake_file="${tmake_file} rs6000/t-float128"
1104         fi
1106         if test $libgcc_cv_powerpc_float128_hw = yes; then
1107                 tmake_file="${tmake_file} rs6000/t-float128-hw"
1108         fi
1110         extra_parts="$extra_parts ecrti.o ecrtn.o ncrti.o ncrtn.o"
1111         md_unwind_header=rs6000/linux-unwind.h
1112         ;;
1113 powerpc-wrs-vxworks*)
1114         tmake_file="$tmake_file rs6000/t-ppccomm rs6000/t-savresfgpr t-fdpbit"
1115         ;;
1116 powerpc-*-lynxos*)
1117         tmake_file="$tmake_file rs6000/t-lynx t-fdpbit"
1118         ;;
1119 powerpcle-*-elf*)
1120         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1121         extra_parts="$extra_parts crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1122         ;;
1123 powerpcle-*-eabisim*)
1124         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1125         extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1126         ;;
1127 powerpcle-*-eabi*)
1128         tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
1129         extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
1130         ;;
1131 riscv*-*-linux*)
1132         tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}"
1133         extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o crtbeginT.o"
1134         md_unwind_header=riscv/linux-unwind.h
1135         ;;
1136 riscv*-*-freebsd*)
1137         tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}"
1138         extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o crtbeginT.o"
1139         ;;
1140 riscv*-*-*)
1141         tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}"
1142         extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o"
1143         ;;
1144 rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*)
1145         md_unwind_header=rs6000/aix-unwind.h
1146         tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-slibgcc-aix rs6000/t-ibm-ldouble"
1147         ;;
1148 rs6000-ibm-aix5.1.* | powerpc-ibm-aix5.1.*)
1149         md_unwind_header=rs6000/aix-unwind.h
1150         tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-slibgcc-aix rs6000/t-ibm-ldouble"
1151         ;;
1152 rs6000-ibm-aix[56789].* | powerpc-ibm-aix[56789].*)
1153         md_unwind_header=rs6000/aix-unwind.h
1154         tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-slibgcc-aix rs6000/t-ibm-ldouble rs6000/t-aix-cxa"
1155         extra_parts="crtcxa.o crtcxa_s.o crtdbase.o"
1156         ;;
1157 rl78-*-elf)
1158         tmake_file="$tm_file t-fdpbit rl78/t-rl78"
1159         ;;
1160 rx-*-elf)
1161         tmake_file="rx/t-rx t-fdpbit"
1162         tm_file="$tm_file rx/rx-abi.h rx/rx-lib.h"
1163         ;;
1164 s390-*-linux*)
1165         tmake_file="${tmake_file} s390/t-crtstuff s390/t-linux s390/32/t-floattodi t-stack s390/t-stack-s390"
1166         md_unwind_header=s390/linux-unwind.h
1167         ;;
1168 s390x-*-linux*)
1169         tmake_file="${tmake_file} s390/t-crtstuff s390/t-linux t-stack s390/t-stack-s390"
1170         if test "${host_address}" = 32; then
1171            tmake_file="${tmake_file} s390/32/t-floattodi"
1172         fi
1173         md_unwind_header=s390/linux-unwind.h
1174         ;;
1175 s390x-ibm-tpf*)
1176         tmake_file="${tmake_file} s390/t-crtstuff t-libgcc-pic t-eh-dw2-dip"
1177         extra_parts="crtbeginS.o crtendS.o"
1178         md_unwind_header=s390/tpf-unwind.h
1179         ;;
1180 sh-*-elf* | sh[12346l]*-*-elf*)
1181         tmake_file="$tmake_file sh/t-sh t-crtstuff-pic t-fdpbit"
1182         extra_parts="$extra_parts crt1.o crti.o crtn.o crtbeginS.o crtendS.o \
1183                 libic_invalidate_array_4-100.a \
1184                 libic_invalidate_array_4-200.a \
1185                 libic_invalidate_array_4a.a \
1186                 libgcc-Os-4-200.a libgcc-4-300.a"
1187         case ${host} in
1188         sh*-superh-elf)
1189                 tmake_file="$tmake_file sh/t-superh"
1190                 extra_parts="$extra_parts crt1-mmu.o gcrt1-mmu.o gcrt1.o"
1191                 ;;
1192         esac
1193         ;;
1194 sh-*-linux* | sh[2346lbe]*-*-linux*)
1195         tmake_file="${tmake_file} sh/t-sh t-slibgcc-libgcc sh/t-linux t-fdpbit"
1196         md_unwind_header=sh/linux-unwind.h
1197         ;;
1198 sh-*-netbsdelf* | shl*-*-netbsdelf*)
1199         tmake_file="$tmake_file sh/t-sh sh/t-netbsd"
1201         # NetBSD's C library includes a fast software FP library that
1202         # has support for setting/setting the rounding mode, exception
1203         # mask, etc.  Therefore, we don't want to include software FP
1204         # in libgcc.
1205         ;;
1206 sh-*-rtems*)
1207         tmake_file="$tmake_file sh/t-sh t-crtstuff-pic t-fdpbit"
1208         extra_parts="$extra_parts crt1.o crti.o crtn.o crtbeginS.o crtendS.o \
1209                 libic_invalidate_array_4-100.a \
1210                 libic_invalidate_array_4-200.a \
1211                 libic_invalidate_array_4a.a \
1212                 libgcc-Os-4-200.a libgcc-4-300.a"
1213         ;;
1214 sh-wrs-vxworks)
1215         tmake_file="$tmake_file sh/t-sh t-crtstuff-pic t-fdpbit"
1216         ;;
1217 sparc-*-netbsdelf*)
1218         ;;
1219 sparc64-*-openbsd*)
1220         ;;
1221 sparc-*-elf*)
1222         case ${host} in
1223         *-leon[3-9]*)
1224                 ;;
1225         *)
1226                 tmake_file="sparc/t-softmul"
1227                 ;;
1228         esac
1229         tmake_file="${tmake_file} t-fdpbit t-crtfm"
1230         extra_parts="$extra_parts crti.o crtn.o crtfastmath.o"
1231         ;;
1232 sparc-*-linux*)         # SPARC's running GNU/Linux, libc6
1233         tmake_file="${tmake_file} t-crtfm"
1234         if test "${host_address}" = 64; then
1235                 tmake_file="$tmake_file sparc/t-linux64"
1236         fi
1237         case ${host} in
1238         *-leon*)
1239                 tmake_file="${tmake_file} t-fdpbit"
1240                 ;;
1241         *)
1242                 tmake_file="${tmake_file} sparc/t-linux"
1243                 ;;
1244         esac
1245         case ${host} in
1246         *-leon[3-9]*)
1247                 ;;
1248         *)
1249                 if test "${host_address}" = 32; then
1250                         tmake_file="$tmake_file sparc/t-softmul"
1251                 fi
1252                 ;;
1253         esac
1254         extra_parts="$extra_parts crtfastmath.o"
1255         md_unwind_header=sparc/linux-unwind.h
1256         ;;
1257 sparc-*-rtems*)
1258         tmake_file="$tmake_file sparc/t-elf sparc/t-softmul t-crtfm t-fdpbit"
1259         extra_parts="$extra_parts crti.o crtn.o crtfastmath.o"
1260         ;;
1261 sparc*-*-solaris2*)
1262         tmake_file="$tmake_file t-crtfm"
1263         extra_parts="$extra_parts crtfastmath.o"
1264         md_unwind_header=sparc/sol2-unwind.h
1265         ;;
1266 sparc64-*-elf*)
1267         tmake_file="${tmake_file} t-crtfm"
1268         extra_parts="$extra_parts crti.o crtn.o crtfastmath.o"
1269         ;;
1270 sparc64-*-rtems*)
1271         tmake_file="$tmake_file t-crtfm"
1272         extra_parts="$extra_parts crti.o crtn.o crtfastmath.o"
1273         ;;
1274 sparc-wrs-vxworks)
1275         ;;
1276 sparc64-*-freebsd*|ultrasparc-*-freebsd*)
1277         tmake_file="$tmake_file t-crtfm"
1278         extra_parts="$extra_parts crtfastmath.o"
1279         ;;
1280 sparc64-*-linux*)               # 64-bit SPARC's running GNU/Linux
1281         extra_parts="$extra_parts crtfastmath.o"
1282         tmake_file="${tmake_file} t-crtfm sparc/t-linux"
1283         if test "${host_address}" = 64; then
1284                 tmake_file="${tmake_file} sparc/t-linux64"
1285         fi
1286         if test "${host_address}" = 32; then
1287                 tmake_file="${tmake_file} sparc/t-softmul"
1288         fi
1289         md_unwind_header=sparc/linux-unwind.h
1290         ;;
1291 sparc64-*-netbsd*)
1292         ;;
1293 spu-*-elf*)
1294         tmake_file="$tmake_file spu/t-elf t-libgcc-pic t-fdpbit"
1295         extra_parts="$extra_parts \
1296                 libgcc_cachemgr.a libgcc_cachemgr_nonatomic.a \
1297                 libgcc_cache8k.a libgcc_cache16k.a libgcc_cache32k.a \
1298                 libgcc_cache64k.a libgcc_cache128k.a"
1299         ;;
1300 tic6x-*-uclinux)
1301         tmake_file="${tmake_file} t-softfp-sfdf t-softfp-excl t-softfp \
1302                 c6x/t-elf  c6x/t-uclinux t-crtstuff-pic t-libgcc-pic \
1303                 t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver t-gnu-prefix"
1304         tm_file="$tm_file c6x/c6x-abi.h"
1305         extra_parts="$extra_parts crtbeginS.o crtendS.o crti.o crtn.o"
1306         unwind_header=config/c6x/unwind-c6x.h
1307         ;;
1308 tic6x-*-elf)
1309         tmake_file="${tmake_file} t-softfp-sfdf t-softfp-excl t-softfp t-gnu-prefix c6x/t-elf"
1310         tm_file="$tm_file c6x/c6x-abi.h"
1311         extra_parts="$extra_parts crtbeginS.o crtendS.o crti.o crtn.o"
1312         unwind_header=config/c6x/unwind-c6x.h
1313         ;;
1314 tilegx*-*-linux*)
1315         if test "${host_address}" = 64; then
1316                 tmake_file="${tmake_file} tilegx/t-softfp"
1317         fi
1318         tmake_file="${tmake_file} tilegx/t-crtstuff t-softfp-sfdf t-softfp tilegx/t-tilegx"
1319         md_unwind_header=tilepro/linux-unwind.h
1320         ;;
1321 tilepro*-*-linux*)
1322         tmake_file="${tmake_file} tilepro/t-crtstuff t-softfp-sfdf t-softfp tilepro/t-tilepro t-slibgcc-libgcc"
1323         md_unwind_header=tilepro/linux-unwind.h
1324         ;;
1325 v850*-*-*)
1326         tmake_file="${tmake_file} v850/t-v850 t-fdpbit"
1327         ;;
1328 vax-*-linux*)
1329         tmake_file="$tmake_file vax/t-linux"
1330         ;;
1331 vax-*-netbsdelf*)
1332         ;;
1333 vax-*-openbsd*)
1334         ;;
1335 visium-*-elf*)
1336         extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o"
1337         tmake_file="visium/t-visium t-fdpbit"
1338         ;;
1339 xstormy16-*-elf)
1340         tmake_file="stormy16/t-stormy16 t-fdpbit"
1341         ;;
1342 xtensa*-*-elf*)
1343         tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-elf"
1344         extra_parts="$extra_parts crti.o crtn.o"
1345         ;;
1346 xtensa*-*-linux*)
1347         tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
1348         md_unwind_header=xtensa/linux-unwind.h
1349         ;;
1350 xtensa*-*-uclinux*)
1351         tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
1352         md_unwind_header=xtensa/linux-unwind.h
1353         extra_parts="$extra_parts crtbeginS.o crtbeginT.o crtendS.o"
1354         ;;
1355 am33_2.0-*-linux*)
1356         # Don't need crtbeginT.o from *-*-linux* default.
1357         extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
1358         tmake_file="$tmake_file t-fdpbit"
1359         ;;
1360 m32c-*-elf*|m32c-*-rtems*)
1361         tmake_file="$tmake_file m32c/t-m32c"
1362         ;;
1363 nvptx-*)
1364         tmake_file="$tmake_file nvptx/t-nvptx"
1365         extra_parts="crt0.o"
1366         ;;
1368         echo "*** Configuration ${host} not supported" 1>&2
1369         exit 1
1370         ;;
1371 esac
1373 case ${host} in
1374 i[34567]86-*-* | x86_64-*-*)
1375         case ${host} in
1376         *-musl*)
1377                 tmake_file="${tmake_file} i386/t-cpuinfo-static"
1378                 ;;
1379         *)
1380                 tmake_file="${tmake_file} i386/t-cpuinfo"
1381                 ;;
1382         esac
1383         ;;
1384 esac
1386 case ${host} in
1387 i[34567]86-*-linux* | x86_64-*-linux* | \
1388   i[34567]86-*-kfreebsd*-gnu | x86_64-*-kfreebsd*-gnu | \
1389   i[34567]86-*-gnu*)
1390         tmake_file="${tmake_file} t-tls i386/t-linux i386/t-msabi t-slibgcc-libgcc"
1391         if test "$libgcc_cv_cfi" = "yes"; then
1392                 tmake_file="${tmake_file} t-stack i386/t-stack-i386"
1393         fi
1394         ;;
1395 esac
1397 case ${host} in
1398 i[34567]86-*-elfiamcu | i[34567]86-*-rtems*)
1399         # These use soft-fp for SFmode and DFmode, not just TFmode.
1400         ;;
1401 i[34567]86-*-* | x86_64-*-*)
1402         tmake_file="${tmake_file} t-softfp-tf"
1403         if test "${host_address}" = 32; then
1404                 tmake_file="${tmake_file} i386/${host_address}/t-softfp"
1405         fi
1406         tmake_file="${tmake_file} i386/t-softfp t-softfp"
1407         ;;
1408 esac
1410 case ${host} in
1411 i[34567]86-*-linux* | x86_64-*-linux*)
1412         # Provide backward binary compatibility for 64bit Linux/x86.
1413         if test "${host_address}" = 64; then
1414                 tmake_file="${tmake_file} i386/${host_address}/t-softfp-compat"
1415         fi
1416         tm_file="${tm_file} i386/value-unwind.h"
1417         ;;
1418 aarch64*-*-*)
1419         # ILP32 needs an extra header for unwinding
1420         tm_file="${tm_file} aarch64/value-unwind.h"
1421         ;;
1422 esac