1 dnl Process this file with autoconf to produce a configure script.
3 dnl And be careful when changing it! If you must add tests with square
4 dnl brackets, be sure changequote invocations surround it.
7 AC_PREREQ(2.3)dnl We only need 2.0, but pre-2.3 loses on some AIX version.
11 AC_ARG_ENABLE(bfd-assembler,
12 [ bfd-assembler use BFD back end for writing object files],
13 [case "${enableval}" in
14 yes) need_bfd=yes user_bfd_gas=yes ;;
15 no) user_bfd_gas=no ;;
16 *) AC_MSG_ERROR(bad value ${enableval} given for bfd-assembler option) ;;
18 AC_ARG_ENABLE(targets,
19 [ targets alternative target configurations besides the primary],
20 [case "${enableval}" in
21 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
23 no) enable_targets= ;;
24 *) enable_targets=$enableval ;;
27 # Generate a header file -- gets more post-processing by Makefile later.
28 AC_CONFIG_HEADER(conf)
30 dnl For recursion to work right, this must be an absolute pathname.
31 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
39 # check for architecture variants
41 armeb) cpu_type=arm endian=big ;;
42 arm*) cpu_type=arm endian=little ;;
43 hppa*) cpu_type=hppa ;;
45 i[45]86) cpu_type=i386 ;;
46 m680[012346]0) cpu_type=m68k ;;
47 m68008) cpu_type=m68k ;;
48 m683??) cpu_type=m68k ;;
51 mips*el) cpu_type=mips endian=little;;
52 mips*) cpu_type=mips endian=big ;;
53 powerpcle*) cpu_type=ppc endian=little ;;
54 powerpc*) cpu_type=ppc endian=big ;;
55 rs6000*) cpu_type=ppc ;;
56 sparc64) cpu_type=sparc obj_format=elf
58 sparclite*) cpu_type=sparc ;;
59 *) cpu_type=${target_cpu} ;;
62 # do we need the opcodes library?
67 OPCODES_LIB="../opcodes/libopcodes.a"
72 gas_target=${cpu_type}
73 this_target=${generic_target}
76 if test -n "$enable_targets" ; then
77 for t in `echo $enable_targets | sed 's/,/ /g'`; do
78 result=`$ac_config_sub $t 2>/dev/null`
79 if test -n "$result" ; then
80 canon_targets="$canon_targets $result"
82 # # Permit "all", etc. We don't support it yet though.
83 # canon_targets="$canon_targets $t"
86 GAS_UNIQ(canon_targets)
91 for this_target in $target $canon_targets ; do
93 eval `echo $this_target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/cpu=\1 vendor=\2 os=\3/'`
95 # check for architecture variants
97 hppa*) cpu_type=hppa ;;
99 i[45]86) cpu_type=i386 ;;
100 m680[012346]0) cpu_type=m68k ;;
101 m68008) cpu_type=m68k ;;
102 m683??) cpu_type=m68k ;;
104 m8*) cpu_type=m88k ;;
105 mips*el) cpu_type=mips endian=little;;
106 mips*) cpu_type=mips endian=big ;;
107 powerpcle*) cpu_type=ppc endian=little ;;
108 powerpc*) cpu_type=ppc endian=big ;;
109 rs6000*) cpu_type=ppc ;;
110 sparc64) cpu_type=sparc obj_format=elf want_sparcv9=true ;;
111 sparclite*) cpu_type=sparc ;;
112 *) cpu_type=${cpu} ;;
115 if test ${this_target} = $target ; then
116 target_cpu_type=${cpu_type}
117 elif test ${target_cpu_type} != ${cpu_type} ; then
122 generic_target=${cpu_type}-$vendor-$os
127 # assign object format
128 case ${generic_target} in
129 a29k-amd-udi) fmt=coff targ=ebmon29k ;;
130 a29k-amd-ebmon) fmt=coff targ=ebmon29k ;;
131 a29k-*-vxworks*) fmt=coff ;;
133 alpha-*-netware*) fmt=ecoff ;;
134 alpha-*-osf*) fmt=ecoff ;;
137 arc-*-elf*) fmt=elf bfd_gas=yes ;;
140 arm-*-riscix*) fmt=aout targ=arm-lit ;;
147 arm-*-riscix*) fmt=aout ;;
148 arm-*-pe) fmt=coff targ=armcoff em=pe ;;
150 hppa-*-*elf*) fmt=elf em=hppa ;;
151 hppa-*-lites*) fmt=elf em=hppa ;;
152 hppa-*-osf*) fmt=som em=hppa ;;
153 hppa-*-hpux*) fmt=som em=hppa ;;
154 hppa-*-bsd*) fmt=som em=hppa ;;
155 hppa-*-hiux*) fmt=som em=hppa ;;
157 h8300-*-coff) fmt=coff ;;
159 i386-ibm-aix*) fmt=coff targ=i386coff
161 i386-*-bsd*) fmt=aout em=386bsd ;;
162 i386-*-netbsd0.8) fmt=aout em=386bsd ;;
163 i386-*-netbsd*) fmt=aout em=nbsd bfd_gas=yes;;
164 i386-*-linux*aout* | i386-*-linuxoldld) fmt=aout em=linux ;;
165 i386-*-linux*coff*) fmt=coff em=linux
167 i386-*-linux*) fmt=elf em=linux ;;
168 i386-*-lynxos*) fmt=coff targ=i386coff
170 i386-*-sysv4* | i386-*-solaris* | i386-*-elf)
172 i386-*-coff | i386-*-sysv* | i386-*-sco* | i386-*-isc*)
173 fmt=coff targ=i386coff ;;
174 i386-*-vsta) fmt=aout ;;
175 i386-*-go32) fmt=coff targ=i386coff ;;
176 i386-*-gnu*) fmt=elf ;;
178 fmt=aout em=mach bfd_gas=yes ;;
179 i386-*-msdos*) fmt=aout ;;
180 i386-*-moss*) fmt=elf ;;
181 i386-*-pe) fmt=coff targ=i386coff em=pe ;;
182 i386-*-win32) fmt=coff targ=i386coff em=pe ;;
183 i386-*-*nt) fmt=coff targ=i386coff em=pe ;;
184 i960-*-bout) fmt=bout ;;
185 i960-*-coff) fmt=coff em=ic960 targ=ic960coff ;;
186 i960-*-nindy*) fmt=bout ;;
187 i960-*-vxworks4*) fmt=bout ;;
188 i960-*-vxworks5.0) fmt=bout ;;
189 i960-*-vxworks5.*) fmt=coff em=ic960 targ=ic960coff ;;
190 i960-*-vxworks*) fmt=bout ;;
192 m68k-*-vxworks* | m68k-ericsson-ose | m68k-*-sunos*)
194 m68k-motorola-sysv) fmt=coff targ=m68kcoff em=delta ;;
195 m68k-bull-sysv3*) fmt=coff targ=m68kcoff em=dpx2 ;;
196 m68k-apollo-*) fmt=coff targ=apollo em=apollo ;;
197 m68k-*-coff | m68k-*-sysv*)
198 fmt=coff targ=m68kcoff ;;
199 m68k-*-elf) fmt=elf ;;
200 m68k-*-hpux*) fmt=hp300 em=hp300 ;;
201 m68k-*-lynxos*) fmt=coff targ=m68kcoff
203 m68k-*-netbsd*) fmt=aout em=nbsd bfd_gas=yes ;;
205 m88k-*-coff*) fmt=coff targ=m88kcoff ;;
207 # don't change em like *-*-bsd does
208 mips-dec-netbsd*) fmt=elf targ=mips-lit endian=little ;;
209 mips-dec-bsd*) fmt=aout targ=mips-lit ;;
210 mips-sony-bsd*) fmt=ecoff targ=mips-big ;;
211 mips-*-bsd*) AC_MSG_ERROR(Unknown vendor for mips-bsd configuration.) ;;
212 mips-*-ultrix*) fmt=ecoff targ=mips-lit endian=little ;;
213 mips-*-ecoff*) fmt=ecoff
215 big) targ=mips-big ;;
219 mips-*-ecoff*) fmt=ecoff targ=mips-big ;;
220 mips-*-gnu*) fmt=aout
222 big) targ=mips-big ;;
226 mips-*-irix5*) fmt=elf targ=mips-big ;;
227 mips-*-irix*) fmt=ecoff targ=mips-big ;;
228 mips-*-riscos*) fmt=ecoff targ=mips-big ;;
229 mips-*-sysv*) fmt=ecoff targ=mips-big ;;
232 big) targ=mips-big ;;
236 ppc-*-pe) fmt=coff em=pe
242 ppc-*-winnt*) fmt=coff em=pe
248 ppc-*-aix*) fmt=coff ;;
249 ppc-*-elf* | ppc-*-eabi* | ppc-*-sysv4*)
256 ppc-*-netware*) fmt=elf em=ppcnw ;;
258 sh-*-coff) fmt=coff ;;
261 rce-*-aout) fmt=aout ;;
264 ns32k-pc532-mach* | ns32k-pc532-ux*) fmt=aout em=pc532mach ;;
265 ns32k-pc532-netbsd* | ns32k-pc532-lites*) fmt=aout em=nbsd532 ;;
267 sparc-*-sunos4*) fmt=aout em=sun3 ;;
268 sparc-*-aout | sparc*-*-vxworks)
270 sparc-*-coff) fmt=coff ;;
271 sparc-*-lynxos*) fmt=coff em=lynx ;;
272 sparc-fujitsu-none) fmt=aout ;;
273 sparc-*-elf | sparc*-*-solaris*)
275 sparc-*-netbsd*) fmt=aout em=nbsd bfd_gas=yes ;;
277 vax-*-bsd* | vax-*-ultrix*)
279 vax-*-vms) fmt=vms ;;
281 z8k-*-coff | z8k-*-sim)
286 *-*-aout | *-*-scout)
292 *-*-generic) fmt=generic ;;
293 *-*-xray | *-*-hms) fmt=coff ;;
295 *-*-elf | *-*-sysv4* | *-*-solaris*)
296 AC_MSG_WARN(GAS support for ELF format is incomplete.)
298 *-*-vxworks) fmt=aout ;;
299 *-*-netware) fmt=elf ;;
302 case ${cpu_type}-${fmt} in
303 arm-*) bfd_gas=yes ;;
305 # i386-aout) bfd_gas=preferred ;;
306 mips-*) bfd_gas=yes ;;
307 ns32k-*) bfd_gas=yes ;;
308 ppc-*) bfd_gas=yes ;;
309 sparc-*) bfd_gas=yes ;;
310 *-elf) bfd_gas=yes ;;
311 *-ecoff) bfd_gas=yes ;;
312 *-som) bfd_gas=yes ;;
316 # Other random stuff.
318 test -n "$want_sparcv9" && AC_DEFINE(sparcv9)
321 m68k) extra_objects="$extra_objects m68k-parse.o" ;;
324 # See if we really can support this configuration with the emulation code.
326 if test $this_target = $target ; then
327 primary_bfd_gas=$bfd_gas
332 if test $bfd_gas = no ; then
333 # Can't support other configurations this way.
336 elif test $bfd_gas = no ; then
337 # Can't support this configuration.
341 # From target name and format, produce a list of supported emulations.
343 case ${generic_target}-${fmt} in
344 mips-*-irix5*-*) emulation="mipsbelf mipslelf mipself mipsbecoff mipslecoff mipsecoff" ;;
345 mips-*-*-ecoff) case "$endian" in
346 big) emulation="mipsbecoff mipslecoff mipsecoff" ;;
347 *) emulation="mipslecoff mipsbecoff mipsecoff" ;;
349 mips-*-*-elf) case "$endian" in
350 big) emulation="mipsbelf mipslelf mipself" ;;
351 *) emulation="mipslelf mipsbelf mipself" ;;
355 emulations="$emulations $emulation"
359 # Assign floating point type. Most processors with FP support
360 # IEEE FP. On those that don't support FP at all, usually IEEE
362 case ${target_cpu} in
363 vax | tahoe ) atof=${target_cpu} ;;
367 case "${obj_format}" in
368 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
372 dnl Make sure the desired support files exist.
375 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
376 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
379 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
380 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
383 # and target makefile frag
385 target_frag=${srcdir}/config/${gas_target}.mt
386 if test ! -r ${target_frag}; then
387 target_frag=/dev/null # ick! but subst_file can't be conditionalized
389 AC_SUBST_FILE(target_frag)
391 case ${user_bfd_gas}-${primary_bfd_gas} in
393 # We didn't override user's choice.
396 AC_MSG_WARN(Use of BFD is required for ${target}; overriding config options.)
408 # User specified nothing.
412 # Some COFF configurations want these random other flags set.
413 case ${obj_format} in
415 case ${target_cpu_type} in
416 i386) AC_DEFINE(I386COFF) ;;
417 m68k) AC_DEFINE(M68KCOFF) ;;
418 m88k) AC_DEFINE(M88KCOFF) ;;
423 # Getting this done right is going to be a bitch. Each configuration specified
424 # with --enable-targets=... should be checked for environment, format, cpu, and
427 # For each configuration, the necessary object file support code must be linked
428 # in. This might be only one, it might be up to four. The necessary emulation
429 # code needs to be provided, too.
431 # And then there's "--enable-targets=all"....
433 # For now, just always do it for MIPS ELF or ECOFF configurations. Sigh.
435 formats="${obj_format}"
439 for em in . $emulations ; do
443 fmt=elf file=mipself ;;
444 mipsbecoff | mipslecoff)
445 fmt=ecoff file=mipsecoff ;;
447 formats="$formats $fmt"
448 emfiles="$emfiles e-$file.o"
449 EMULATIONS="$EMULATIONS &$em,"
453 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
454 for fmt in $formats ; do
456 aout) AC_DEFINE(OBJ_MAYBE_AOUT) ;;
457 bout) AC_DEFINE(OBJ_MAYBE_BOUT) ;;
458 coff) AC_DEFINE(OBJ_MAYBE_COFF) ;;
459 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF) ;;
460 elf) AC_DEFINE(OBJ_MAYBE_ELF) ;;
461 generic) AC_DEFINE(OBJ_MAYBE_GENERIC) ;;
462 hp300) AC_DEFINE(OBJ_MAYBE_HP300) ;;
463 ieee) AC_DEFINE(OBJ_MAYBE_IEEE) ;;
464 som) AC_DEFINE(OBJ_MAYBE_SOM) ;;
465 vms) AC_DEFINE(OBJ_MAYBE_VMS) ;;
467 extra_objects="$extra_objects obj-$fmt.o"
471 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
473 extra_objects="$extra_objects $emfiles"
474 DEFAULT_EMULATION=`set . $emulations ; echo $2`
475 AC_DEFINE(USE_EMULATIONS)
477 AC_SUBST(extra_objects)
478 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS)
479 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION")
481 files="config/tc-${target_cpu_type}.c config/tc-${target_cpu_type}.h \
482 config/obj-${obj_format}.h config/obj-${obj_format}.c \
483 config/te-${te_file}.h config/atof-${atof}.c \
485 links="targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c \
488 case ${primary_bfd_gas}-${target_cpu_type}-${obj_format} in
489 yes-*-coff) need_bfd=yes ;;
490 no-*-coff) need_bfd=yes
491 AC_DEFINE(MANY_SEGMENTS) ;;
494 reject_dev_configs=yes
496 case ${reject_dev_configs}-${dev} in
498 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
502 AC_SUBST(target_cpu_type)
505 dnl AC_SUBST(emulation)
507 AC_LINK_FILES($files, $links)
509 case "${primary_bfd_gas}" in
510 yes) AC_DEFINE(BFD_ASSEMBLER)
514 case "${need_bfd}" in
515 yes) BFDLIB=../bfd/libbfd.a
516 ALL_OBJ_DEPS="$ALL_OBJ_DEPS ../bfd/bfd.h"
520 AC_SUBST(ALL_OBJ_DEPS)
522 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}")
523 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}")
524 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}")
525 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}")
526 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}")
531 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h stdarg.h varargs.h errno.h sys/types.h)
533 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
534 # people who are not cross-compiling but are compiling cross-assemblers.
535 AC_MSG_CHECKING(whether compiling a cross-assembler)
536 if test "${host}" = "${target}"; then
540 AC_DEFINE(CROSS_COMPILE)
542 AC_MSG_RESULT($cross_gas)
544 dnl ansidecl.h will deal with const
549 # VMS doesn't have unlink.
550 AC_CHECK_FUNCS(unlink remove, break)
552 # Some systems don't have sbrk().
555 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
556 # enough, but on some of those systems, the assert macro relies on requoting
560 # On some systems, the system header files may not declare malloc, realloc,
561 # and free. There are places where gas needs these functions to have been
562 # declared -- such as when taking their addresses.
577 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
578 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
580 # Does errno.h declare errno, or do we have to add a separate declaration
582 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
588 dnl This must come last.
589 AC_OUTPUT(Makefile doc/Makefile .gdbinit:gdbinit.in)