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[thirdparty/binutils-gdb.git] / gdb / configure.ac
1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2014 Free Software Foundation, Inc.
3 dnl
4 dnl This file is part of GDB.
5 dnl
6 dnl This program is free software; you can redistribute it and/or modify
7 dnl it under the terms of the GNU General Public License as published by
8 dnl the Free Software Foundation; either version 3 of the License, or
9 dnl (at your option) any later version.
10 dnl
11 dnl This program is distributed in the hope that it will be useful,
12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 dnl GNU General Public License for more details.
15 dnl
16 dnl You should have received a copy of the GNU General Public License
17 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
18
19 dnl Process this file with autoconf to produce a configure script.
20
21 AC_PREREQ(2.59)dnl
22 AC_INIT(main.c)
23 AC_CONFIG_HEADER(config.h:config.in)
24 AM_MAINTAINER_MODE
25
26 # Set the 'development' global.
27 . $srcdir/development.sh
28
29 AC_PROG_CC
30 AC_USE_SYSTEM_EXTENSIONS
31 ACX_LARGEFILE
32 AM_PROG_CC_STDC
33
34 AC_CONFIG_AUX_DIR(..)
35 AC_CANONICAL_SYSTEM
36 AC_ARG_PROGRAM
37
38 # Dependency checking.
39 ZW_CREATE_DEPDIR
40 ZW_PROG_COMPILER_DEPENDENCIES([CC])
41
42 # Check for the 'make' the user wants to use.
43 AC_CHECK_PROGS(MAKE, make)
44 MAKE_IS_GNU=
45 case "`$MAKE --version 2>&1 | sed 1q`" in
46 *GNU*)
47 MAKE_IS_GNU=yes
48 ;;
49 esac
50 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
51 AC_PROG_MAKE_SET
52
53 # Configure gnulib. We need to build gnulib under some other
54 # directory not "gnulib", to avoid the problem of both GDB and
55 # GDBserver wanting to build it in the same directory, when building
56 # in the source dir.
57 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"])
58
59 dnl List of object files and targets accumulated by configure.
60
61 CONFIG_OBS=
62 CONFIG_DEPS=
63 CONFIG_SRCS=
64 ENABLE_CFLAGS=
65
66 CONFIG_ALL=
67 CONFIG_CLEAN=
68 CONFIG_INSTALL=
69 CONFIG_UNINSTALL=
70
71 dnl Set up for gettext.
72 ZW_GNU_GETTEXT_SISTER_DIR
73
74 localedir='${datadir}/locale'
75 AC_SUBST(localedir)
76
77 if test x"$USE_NLS" = xyes; then
78 CONFIG_ALL="$CONFIG_ALL all-po"
79 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
80 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
81 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
82 fi
83
84 GNULIB=build-gnulib/import
85
86 # For Makefile dependencies.
87 GNULIB_STDINT_H=
88 if test x"$STDINT_H" != x; then
89 GNULIB_STDINT_H=$GNULIB/$STDINT_H
90 fi
91 AC_SUBST(GNULIB_STDINT_H)
92
93 PACKAGE=gdb
94 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
95 AC_SUBST(PACKAGE)
96
97 # We never need to detect it in this sub-configure.
98 # But preserve it for config.status --recheck.
99 AC_ARG_VAR(MAKEINFO,
100 [Parent configure detects if it is of sufficient version.])
101 AC_ARG_VAR(MAKEINFOFLAGS,
102 [Parameters for MAKEINFO.])
103
104 MAKEINFO_EXTRA_FLAGS=""
105 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
106 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
107 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
108 gdb_cv_have_makeinfo_click=yes
109 else
110 gdb_cv_have_makeinfo_click=no
111 fi])
112 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
113 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
114 fi
115 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
116
117 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
118 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
119 [${libdir}/debug])
120
121 # We can't pass paths as command line arguments.
122 # Mingw32 tries to be clever and will convert the paths for us.
123 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
124 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
125 # This breaks GDB's relocatable path conversions since paths passed in
126 # config.h would not get so translated, the path prefixes no longer match.
127 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
128
129 # GDB's datadir relocation
130
131 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
132 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
133 [${datadir}/gdb])
134
135 AC_ARG_WITH(relocated-sources,
136 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
137 [reloc_srcdir="${withval}"
138 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
139 [Relocated directory for source files. ])
140 ])
141
142 AC_MSG_CHECKING([for default auto-load directory])
143 AC_ARG_WITH(auto-load-dir,
144 AS_HELP_STRING([--with-auto-load-dir=PATH],
145 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
146 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
147 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
148 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
149 [Directories from which to load auto-loaded scripts.])
150 AC_MSG_RESULT([$with_auto_load_dir])
151
152 AC_MSG_CHECKING([for default auto-load safe-path])
153 AC_ARG_WITH(auto-load-safe-path,
154 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
155 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
156 AS_HELP_STRING([--without-auto-load-safe-path],
157 [do not restrict auto-loaded files locations]),
158 [if test "$with_auto_load_safe_path" = "no"; then
159 with_auto_load_safe_path="/"
160 fi],
161 [with_auto_load_safe_path="$with_auto_load_dir"])
162 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
163 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
164 [Directories safe to hold auto-loaded files.])
165 AC_MSG_RESULT([$with_auto_load_safe_path])
166
167 AC_CONFIG_SUBDIRS(testsuite)
168
169 # Check whether to support alternative target configurations
170 AC_ARG_ENABLE(targets,
171 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
172 [case "${enableval}" in
173 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
174 ;;
175 no) enable_targets= ;;
176 *) enable_targets=$enableval ;;
177 esac])
178
179 # Check whether to enable 64-bit support on 32-bit hosts
180 AC_ARG_ENABLE(64-bit-bfd,
181 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
182 [case "${enableval}" in
183 yes) want64=true ;;
184 no) want64=false ;;
185 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
186 esac],[want64=false])dnl
187
188 # Provide defaults for some variables set by the per-host and per-target
189 # configuration.
190 gdb_host_obs=posix-hdep.o
191
192 if test "${target}" = "${host}"; then
193 gdb_native=yes
194 else
195 gdb_native=no
196 fi
197
198 . $srcdir/configure.host
199
200 # Accumulate some settings from configure.tgt over all enabled targets
201
202 TARGET_OBS=
203 all_targets=
204 HAVE_NATIVE_GCORE_TARGET=
205
206 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
207 do
208 if test "$targ_alias" = "all"; then
209 all_targets=true
210 else
211 # Canonicalize the secondary target names.
212 result=`$ac_config_sub $targ_alias 2>/dev/null`
213 if test -n "$result"; then
214 targ=$result
215 else
216 targ=$targ_alias
217 fi
218
219 . ${srcdir}/configure.tgt
220
221 AS_IF([test -z "${gdb_target_obs}"],
222 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
223
224 # Target-specific object files
225 for i in ${gdb_target_obs}; do
226 case " $TARGET_OBS " in
227 *" ${i} "*) ;;
228 *)
229 TARGET_OBS="$TARGET_OBS ${i}"
230 ;;
231 esac
232 done
233
234 # Check whether this target needs 64-bit CORE_ADDR
235 if test x${want64} = xfalse; then
236 . ${srcdir}/../bfd/config.bfd
237 fi
238
239 # Check whether this target is native and supports gcore.
240 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
241 && $gdb_have_gcore; then
242 HAVE_NATIVE_GCORE_TARGET=1
243 fi
244 fi
245 done
246
247 if test x${all_targets} = xtrue; then
248
249 # We want all 64-bit targets if we either:
250 # - run on a 64-bit host or
251 # - already require 64-bit support for some other target or
252 # - the --enable-64-bit-bfd option was supplied
253 # Otherwise we only support all 32-bit targets.
254 #
255 # NOTE: This test must be in sync with the corresponding
256 # tests in BFD!
257
258 if test x${want64} = xfalse; then
259 AC_CHECK_SIZEOF(long)
260 if test "x${ac_cv_sizeof_long}" = "x8"; then
261 want64=true
262 fi
263 fi
264 if test x${want64} = xtrue; then
265 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
266 else
267 TARGET_OBS='$(ALL_TARGET_OBS)'
268 fi
269 fi
270
271 AC_SUBST(TARGET_OBS)
272 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
273
274 # For other settings, only the main target counts.
275 gdb_sim=
276 gdb_osabi=
277 build_gdbserver=
278 targ=$target; . ${srcdir}/configure.tgt
279
280 # Fetch the default architecture and default target vector from BFD.
281 targ=$target; . $srcdir/../bfd/config.bfd
282
283 # We only want the first architecture, so strip off the others if
284 # there is more than one.
285 targ_archs=`echo $targ_archs | sed 's/ .*//'`
286
287 if test "x$targ_archs" != x; then
288 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
289 [Define to BFD's default architecture. ])
290 fi
291 if test "x$targ_defvec" != x; then
292 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
293 [Define to BFD's default target vector. ])
294 fi
295
296 # The CLI cannot be disabled yet, but may be in the future.
297
298 # Enable CLI.
299 AC_ARG_ENABLE(gdbcli,
300 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
301 [case $enableval in
302 yes)
303 ;;
304 no)
305 AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
306 *)
307 AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
308 esac],
309 [enable_gdbcli=yes])
310 if test x"$enable_gdbcli" = xyes; then
311 if test -d $srcdir/cli; then
312 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
313 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
314 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
315 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
316 fi
317 fi
318
319 # Enable MI.
320 AC_ARG_ENABLE(gdbmi,
321 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
322 [case $enableval in
323 yes | no)
324 ;;
325 *)
326 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
327 esac],
328 [enable_gdbmi=yes])
329 if test x"$enable_gdbmi" = xyes; then
330 if test -d $srcdir/mi; then
331 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
332 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
333 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
334 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
335 fi
336 fi
337
338 # Enable TUI.
339 AC_ARG_ENABLE(tui,
340 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
341 [case $enableval in
342 yes | no | auto)
343 ;;
344 *)
345 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
346 esac],enable_tui=auto)
347
348 # Enable gdbtk.
349 AC_ARG_ENABLE(gdbtk,
350 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
351 [case $enableval in
352 yes | no)
353 ;;
354 *)
355 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
356 esac],
357 [if test -d $srcdir/gdbtk; then
358 enable_gdbtk=yes
359 else
360 enable_gdbtk=no
361 fi])
362 # We unconditionally disable gdbtk tests on selected platforms.
363 case $host_os in
364 go32* | windows*)
365 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
366 enable_gdbtk=no ;;
367 esac
368
369 # Libunwind support for ia64.
370
371 AC_ARG_WITH(libunwind-ia64,
372 AS_HELP_STRING([--with-libunwind-ia64],
373 [use libunwind frame unwinding for ia64 targets]),,
374 [with_libunwind_ia64=auto])
375
376 # Backward compatibility option.
377 if test "${with_libunwind+set}" = set; then
378 if test x"$with_libunwind_ia64" != xauto; then
379 AC_MSG_ERROR(
380 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
381 fi
382 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
383 with_libunwind_ia64="$with_libunwind"
384 fi
385
386 case "$with_libunwind_ia64" in
387 yes | no)
388 ;;
389 auto)
390 AC_CHECK_HEADERS(libunwind-ia64.h)
391 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
392 ;;
393 *)
394 AC_MSG_ERROR(
395 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
396 ;;
397 esac
398
399 if test x"$with_libunwind_ia64" = xyes; then
400 AC_CHECK_HEADERS(libunwind-ia64.h)
401 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
402 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
403 fi
404 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
405 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
406 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
407 fi
408
409 opt_curses=no
410 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
411
412 prefer_curses=no
413 if test "$opt_curses" = "yes"; then
414 prefer_curses=yes
415 fi
416
417 # Profiling support.
418 AC_ARG_ENABLE(profiling,
419 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
420 [case $enableval in
421 yes | no)
422 ;;
423 *)
424 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
425 esac],
426 [enable_profiling=no])
427
428 AC_CHECK_FUNCS(monstartup _mcleanup)
429 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
430 [AC_TRY_LINK(
431 [#include <stdlib.h>
432 extern char _etext;
433 ],
434 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
435 if test $ac_cv_var__etext = yes; then
436 AC_DEFINE(HAVE__ETEXT, 1,
437 [Define to 1 if your system has the _etext variable. ])
438 fi
439 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
440 [AC_TRY_LINK(
441 [#include <stdlib.h>
442 extern char etext;
443 ],
444 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
445 if test $ac_cv_var_etext = yes; then
446 AC_DEFINE(HAVE_ETEXT, 1,
447 [Define to 1 if your system has the etext variable. ])
448 fi
449 if test "$enable_profiling" = yes ; then
450 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
451 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
452 fi
453 PROFILE_CFLAGS=-pg
454 OLD_CFLAGS="$CFLAGS"
455 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
456
457 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
458 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
459 ac_cv_cc_supports_pg=no)])
460
461 if test $ac_cv_cc_supports_pg = no; then
462 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
463 fi
464
465 CFLAGS="$OLD_CFLAGS"
466 fi
467
468 ACX_PKGVERSION([GDB])
469 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
470 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
471 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
472
473 # --------------------- #
474 # Checks for programs. #
475 # --------------------- #
476
477 AC_PROG_AWK
478 AC_PROG_INSTALL
479 AC_PROG_LN_S
480 AC_PROG_RANLIB
481 AC_PROG_YACC
482
483 AC_CHECK_TOOL(AR, ar)
484 AC_CHECK_TOOL(DLLTOOL, dlltool)
485 AC_CHECK_TOOL(WINDRES, windres)
486
487 case $host_os in
488 gnu*)
489 # Needed for GNU Hurd hosts.
490 AC_CHECK_TOOL(MIG, mig)
491 if test x"$MIG" = x; then
492 AC_MSG_ERROR([MIG not found but required for $host hosts])
493 fi
494 ;;
495 esac
496
497 # ---------------------- #
498 # Checks for libraries. #
499 # ---------------------- #
500
501 # We might need to link with -lm; most simulators need it.
502 AC_CHECK_LIB(m, main)
503
504 # We need to link with -lw to get `wctype' on Solaris before Solaris
505 # 2.6. Solaris 2.6 and beyond have this function in libc, and have a
506 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
507 # is known to have this problem). Therefore we avoid libw if we can.
508 AC_CHECK_FUNC(wctype, [],
509 [AC_CHECK_LIB(w, wctype)])
510
511 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
512 AC_SEARCH_LIBS(gethostbyname, nsl)
513
514 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
515 AC_SEARCH_LIBS(socketpair, socket)
516
517 # Link in zlib if we can. This allows us to read compressed debug sections.
518 AM_ZLIB
519
520 # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
521 AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
522
523 AM_ICONV
524
525 # GDB may fork/exec the iconv program to get the list of supported character
526 # sets. Allow the user to specify where to find it.
527 # There are several factors affecting the choice of option name:
528 # - There is already --with-libiconv-prefix but we can't use it, it specifies
529 # the build-time location of libiconv files.
530 # - The program we need to find is iconv, which comes with glibc. The user
531 # doesn't necessarily have libiconv installed. Therefore naming this
532 # --with-libiconv-foo feels wrong.
533 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
534 # defined to work on directories not files (though it really doesn't know
535 # the difference).
536 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
537 # with --with-libiconv-prefix.
538 # Putting these together is why the option name is --with-iconv-bin.
539
540 AC_ARG_WITH(iconv-bin,
541 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
542 [iconv_bin="${withval}"
543 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
544 [Path of directory of iconv program.])
545 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
546 ])
547
548 # On alpha-osf, it appears that libtermcap and libcurses are not compatible.
549 # There is a very specific comment in /usr/include/curses.h explaining that
550 # termcap routines built into libcurses must not be used.
551 #
552 # The symptoms we observed so far is GDB unexpectedly changing
553 # the terminal settings when tgetent is called - this is particularly
554 # visible as the output is missing carriage returns, and so rapidly
555 # becomes very hard to read.
556 #
557 # The readline configure script has already decided that libtermcap
558 # was enough for its purposes, and so decided to build readline using
559 # libtermcap. Since the TUI mode requires curses, building GDB with
560 # TUI enabled results in both libraries to be used at the same time,
561 # which is not allowed. This basically means that GDB with TUI is
562 # broken on alpha-osf.
563
564 case $host_os in
565 osf* )
566 if test x"$enable_tui" = xyes; then
567 AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host])
568 fi
569 if test x"$enable_tui" = xauto; then
570 enable_tui=no
571 fi
572 ;;
573 esac
574
575 # For the TUI, we need enhanced curses functionality.
576 if test x"$enable_tui" != xno; then
577 prefer_curses=yes
578 fi
579
580 curses_found=no
581 if test x"$prefer_curses" = xyes; then
582 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
583 # curses library because the latter might not provide all the
584 # functionality we need. However, this leads to problems on systems
585 # where the linker searches /usr/local/lib, but the compiler doesn't
586 # search /usr/local/include, if ncurses is installed in /usr/local. A
587 # default installation of ncurses on alpha*-dec-osf* will lead to such
588 # a situation.
589 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
590
591 if test "$ac_cv_search_waddstr" != no; then
592 curses_found=yes
593 fi
594 fi
595
596 # Check whether we should enable the TUI, but only do so if we really
597 # can.
598 if test x"$enable_tui" != xno; then
599 if test -d $srcdir/tui; then
600 if test "$curses_found" != no; then
601 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
602 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
603 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
604 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
605 else
606 if test x"$enable_tui" = xyes; then
607 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
608 else
609 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
610 fi
611 fi
612 fi
613 fi
614
615 # Since GDB uses Readline, we need termcap functionality. In many
616 # cases this will be provided by the curses library, but some systems
617 # have a seperate termcap library, or no curses library at all.
618
619 case $host_os in
620 cygwin*)
621 if test -d $srcdir/libtermcap; then
622 LIBS="../libtermcap/libtermcap.a $LIBS"
623 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
624 fi ;;
625 go32* | *djgpp*)
626 ac_cv_search_tgetent="none required"
627 ;;
628 *mingw32*)
629 ac_cv_search_tgetent="none required"
630 CONFIG_OBS="$CONFIG_OBS windows-termcap.o"
631 ;;
632 esac
633
634 # These are the libraries checked by Readline.
635 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
636
637 if test "$ac_cv_search_tgetent" = no; then
638 AC_MSG_ERROR([no termcap library found])
639 fi
640
641 AC_ARG_WITH([system-readline],
642 [AS_HELP_STRING([--with-system-readline],
643 [use installed readline library])])
644
645 if test "$with_system_readline" = yes; then
646 READLINE=-lreadline
647 READLINE_DEPS=
648 READLINE_CFLAGS=
649 READLINE_TEXI_INCFLAG=
650 else
651 READLINE='$(READLINE_DIR)/libreadline.a'
652 READLINE_DEPS='$(READLINE)'
653 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
654 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
655 fi
656 AC_SUBST(READLINE)
657 AC_SUBST(READLINE_DEPS)
658 AC_SUBST(READLINE_CFLAGS)
659 AC_SUBST(READLINE_TEXI_INCFLAG)
660
661 # Generate jit-reader.h
662
663 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
664 TARGET_PTR=
665
666 AC_CHECK_SIZEOF(unsigned long long)
667 AC_CHECK_SIZEOF(unsigned long)
668 AC_CHECK_SIZEOF(unsigned __int128)
669
670 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
671 TARGET_PTR="unsigned long"
672 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
673 TARGET_PTR="unsigned long long"
674 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
675 TARGET_PTR="unsigned __int128"
676 else
677 TARGET_PTR="unsigned long"
678 fi
679
680 AC_SUBST(TARGET_PTR)
681 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
682
683 AC_SEARCH_LIBS(dlopen, dl)
684
685 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
686 [directory to load the JIT readers from],
687 [${libdir}/gdb])
688
689 AC_ARG_WITH(expat,
690 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
691 [], [with_expat=auto])
692 AC_MSG_CHECKING([whether to use expat])
693 AC_MSG_RESULT([$with_expat])
694
695 if test "${with_expat}" = no; then
696 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
697 HAVE_LIBEXPAT=no
698 else
699 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
700 [XML_Parser p = XML_ParserCreate (0);])
701 if test "$HAVE_LIBEXPAT" != yes; then
702 if test "$with_expat" = yes; then
703 AC_MSG_ERROR([expat is missing or unusable])
704 else
705 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
706 fi
707 else
708 save_LIBS=$LIBS
709 LIBS="$LIBS $LIBEXPAT"
710 AC_CHECK_FUNCS(XML_StopParser)
711 LIBS=$save_LIBS
712 fi
713 fi
714
715 # --------------------- #
716 # Check for libpython. #
717 # --------------------- #
718
719 dnl Utility to simplify finding libpython.
720 dnl $1 = pythonX.Y
721 dnl $2 = the shell variable to assign the result to
722 dnl If libpython is found we store $version here.
723 dnl $3 = additional flags to add to CPPFLAGS
724 dnl $4 = additional flags to add to LIBS
725
726 AC_DEFUN([AC_TRY_LIBPYTHON],
727 [
728 version=$1
729 define([have_libpython_var],$2)
730 new_CPPFLAGS=$3
731 new_LIBS=$4
732 AC_MSG_CHECKING([for ${version}])
733 save_CPPFLAGS=$CPPFLAGS
734 save_LIBS=$LIBS
735 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
736 LIBS="$LIBS $new_LIBS"
737 found_usable_python=no
738 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
739 [[Py_Initialize ();]]),
740 [have_libpython_var=${version}
741 found_usable_python=yes
742 PYTHON_CPPFLAGS=$new_CPPFLAGS
743 PYTHON_LIBS=$new_LIBS])
744 CPPFLAGS=$save_CPPFLAGS
745 LIBS=$save_LIBS
746 AC_MSG_RESULT([${found_usable_python}])
747 ])
748
749 dnl There are several different values for --with-python:
750 dnl
751 dnl no - Don't include python support.
752 dnl yes - Include python support, error if it's missing.
753 dnl If we find python in $PATH, use it to fetch configure options,
754 dnl otherwise assume the compiler can find it with no help from us.
755 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
756 dnl auto - Same as "yes", but if python is missing from the system,
757 dnl fall back to "no".
758 dnl /path/to/python/exec-prefix -
759 dnl Use the python located in this directory.
760 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
761 dnl the compilation parameters. Otherwise use
762 dnl -I/path/to/python/exec-prefix/include,
763 dnl -L/path/to/python/exec-prefix/lib.
764 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
765 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
766 dnl but is deprecated.
767 dnl /path/to/python/executable -
768 dnl Run python-config.py with this version of python to fetch the
769 dnl compilation parameters.
770 dnl NOTE: This needn't be the real python executable.
771 dnl In a cross-compilation scenario (build != host), this could be
772 dnl a shell script that provides what python-config.py provides for
773 dnl --ldflags, --includes, --exec-prefix.
774 dnl python-executable -
775 dnl Find python-executable in $PATH, and then handle the same as
776 dnl /path/to/python/executable.
777 dnl
778 dnl If a python program is specified, it is used to run python-config.py and
779 dnl is passed --ldflags, --includes, --exec-prefix.
780
781 AC_ARG_WITH(python,
782 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
783 [], [with_python=auto])
784 AC_MSG_CHECKING([whether to use python])
785 AC_MSG_RESULT([$with_python])
786
787 if test "${with_python}" = no; then
788 AC_MSG_WARN([python support disabled; some features may be unavailable.])
789 have_libpython=no
790 else
791 case "${with_python}" in
792 [[\\/]]* | ?:[[\\/]]*)
793 if test -d ${with_python}; then
794 # Assume the python binary is ${with_python}/bin/python.
795 python_prog="${with_python}/bin/python"
796 python_prefix=
797 # If python does not exit ${with_python}/bin, then try in
798 # ${with_python}. On Windows/MinGW, this is where the Python
799 # executable is.
800 if test ! -x "${python_prog}"; then
801 python_prog="${with_python}/python"
802 python_prefix=
803 fi
804 if test ! -x "${python_prog}"; then
805 # Fall back to gdb 7.0/7.1 behaviour.
806 python_prog=missing
807 python_prefix=${with_python}
808 fi
809 elif test -x "${with_python}"; then
810 # While we can't run python compiled for $host (unless host == build),
811 # the user could write a script that provides the needed information,
812 # so we support that.
813 python_prog=${with_python}
814 python_prefix=
815 else
816 AC_ERROR(invalid value for --with-python)
817 fi
818 ;;
819 */*)
820 # Disallow --with-python=foo/bar.
821 AC_ERROR(invalid value for --with-python)
822 ;;
823 *)
824 # The user has either specified auto, yes, or the name of the python
825 # program assumed to be in $PATH.
826 python_prefix=
827 case "${with_python}" in
828 yes | auto)
829 if test ${build} = ${host}; then
830 AC_PATH_PROG(python_prog_path, python, missing)
831 if test "${python_prog_path}" = missing; then
832 python_prog=missing
833 else
834 python_prog=${python_prog_path}
835 fi
836 else
837 # Not much we can do except assume the cross-compiler will find the
838 # right files.
839 python_prog=missing
840 fi
841 ;;
842 *)
843 # While we can't run python compiled for $host (unless host == build),
844 # the user could write a script that provides the needed information,
845 # so we support that.
846 python_prog="${with_python}"
847 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
848 if test "${python_prog_path}" = missing; then
849 AC_ERROR(unable to find python program ${python_prog})
850 fi
851 ;;
852 esac
853 esac
854
855 if test "${python_prog}" != missing; then
856 # We have a python program to use, but it may be too old.
857 # Don't flag an error for --with-python=auto (the default).
858 have_python_config=yes
859 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
860 if test $? != 0; then
861 have_python_config=failed
862 if test "${with_python}" != auto; then
863 AC_ERROR(failure running python-config --includes)
864 fi
865 fi
866 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
867 if test $? != 0; then
868 have_python_config=failed
869 if test "${with_python}" != auto; then
870 AC_ERROR(failure running python-config --ldflags)
871 fi
872 fi
873 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
874 if test $? != 0; then
875 have_python_config=failed
876 if test "${with_python}" != auto; then
877 AC_ERROR(failure running python-config --exec-prefix)
878 fi
879 fi
880 else
881 # We do not have a python executable we can use to determine where
882 # to find the Python headers and libs. We cannot guess the include
883 # path from the python_prefix either, because that include path
884 # depends on the Python version. So, there is nothing much we can
885 # do except assume that the compiler will be able to find those files.
886 python_includes=
887 python_libs=
888 have_python_config=no
889 fi
890
891 # If we have python-config, only try the configuration it provides.
892 # Otherwise fallback on the old way of trying different versions of
893 # python in turn.
894
895 have_libpython=no
896 if test "${have_python_config}" = yes; then
897 # Determine the Python version by extracting "-lpython<version>"
898 # part of the python_libs. <version> is usually X.Y with X and Y
899 # being decimal numbers, but can also be XY (seen on Windows).
900 #
901 # The extraction is performed using sed with a regular expression.
902 # Initially, the regexp used was using the '?' quantifier to make
903 # the dot in the version number optional. Unfortunately, this
904 # does not work with non-GNU versions of sed because, because of
905 # what looks like a limitation (the '?' quantifier does not work
906 # with back-references). We work around this limitation by using
907 # the '*' quantifier instead. It means that, in theory, we might
908 # match unexpected version strings such as "-lpython2..7", but
909 # this seems unlikely in practice. And even if that happens,
910 # an error will be triggered later on, when checking that version
911 # number.
912 python_version=`echo " ${python_libs} " \
913 | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
914 case "${python_version}" in
915 python*)
916 AC_TRY_LIBPYTHON(${python_version}, have_libpython,
917 ${python_includes}, ${python_libs})
918 ;;
919 *)
920 AC_MSG_ERROR([unable to determine python version from ${python_libs}])
921 ;;
922 esac
923 elif test "${have_python_config}" != failed; then
924 if test "${have_libpython}" = no; then
925 AC_TRY_LIBPYTHON(python2.7, have_libpython,
926 ${python_includes}, "${python_libs} -lpython2.7")
927 fi
928 if test "${have_libpython}" = no; then
929 AC_TRY_LIBPYTHON(python2.6, have_libpython,
930 ${python_includes}, "${python_libs} -lpython2.6")
931 fi
932 if test ${have_libpython} = no; then
933 AC_TRY_LIBPYTHON(python2.5, have_libpython,
934 ${python_includes}, "${python_libs} -lpython2.5")
935 fi
936 if test ${have_libpython} = no; then
937 AC_TRY_LIBPYTHON(python2.4, have_libpython,
938 ${python_includes}, "${python_libs} -lpython2.4")
939 fi
940 fi
941 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
942 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
943 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
944 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
945 elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
946 AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
947 elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
948 AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
949 fi
950
951 if test "${have_libpython}" = no; then
952 case "${with_python}" in
953 yes)
954 AC_MSG_ERROR([python is missing or unusable])
955 ;;
956 auto)
957 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
958 ;;
959 *)
960 AC_MSG_ERROR([no usable python found at ${with_python}])
961 ;;
962 esac
963 else
964 if test -n "${python_prefix}"; then
965 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
966 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
967 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
968 fi
969 fi
970 fi
971
972 if test "${have_libpython}" != no; then
973 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
974 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
975 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
976 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
977 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
978 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
979
980 # Flags needed to compile Python code (taken from python-config --cflags).
981 # We cannot call python-config directly because it will output whatever was
982 # used when compiling the Python interpreter itself, including flags which
983 # would make the python-related objects be compiled differently from the
984 # rest of GDB (e.g., -O2 and -fPIC).
985 if test "${GCC}" = yes; then
986 tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
987 fi
988
989 if test "x${tentative_python_cflags}" != x; then
990 AC_MSG_CHECKING(compiler flags for python code)
991 for flag in ${tentative_python_cflags}; do
992 # Check that the compiler accepts it
993 saved_CFLAGS="$CFLAGS"
994 CFLAGS="$CFLAGS $flag"
995 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
996 CFLAGS="$saved_CFLAGS"
997 done
998 AC_MSG_RESULT(${PYTHON_CFLAGS})
999 fi
1000
1001 # On IRIX, type siginfo is not defined. Instead, sys/siginfo.h provides:
1002 # #if _SGIAPI
1003 # #define siginfo __siginfo
1004 # #endif
1005 # The problem is that including Python causes some XOPEN macros to be
1006 # unilaterally defined, and that in turn causes _SGIAPI to evaluate
1007 # to false. So, we work around this issue by defining siginfo ourself
1008 # though the command-line.
1009 #
1010 # On x64 Windows, Python's include headers, and pyconfig.h in
1011 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
1012 # version of Windows. Unfortunately, MS_WIN64 is only defined if
1013 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
1014 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
1015 # The issue was reported to the Python community, but still isn't
1016 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
1017
1018 case "$gdb_host" in
1019 irix*) if test "${GCC}" = yes; then
1020 CPPFLAGS="$CPPFLAGS -Dsiginfo=__siginfo"
1021 fi
1022 ;;
1023 mingw64)
1024 if test "${GCC}" = yes; then
1025 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1026 fi
1027 ;;
1028 esac
1029
1030 # Note that "python -m threading" cannot be used to check for
1031 # threading support due to a bug in Python 2.7.3
1032 # (http://bugs.python.org/issue15567).
1033 AC_MSG_CHECKING(whether python supports threads)
1034 saved_CPPFLAGS="${CPPFLAGS}"
1035 CPPFLAGS="${PYTHON_CPPFLAGS}"
1036 # Note that the test is reversed so that python_has_threads=yes on
1037 # unexpected failures.
1038 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1039 #include <Python.h>
1040 #ifdef WITH_THREAD
1041 # error
1042 #endif
1043 ]]), [python_has_threads=no], [python_has_threads=yes])
1044 AC_MSG_RESULT(${python_has_threads})
1045 CPPFLAGS="${saved_CPPFLAGS}"
1046 else
1047 # Even if Python support is not compiled in, we need to have these files
1048 # included.
1049 CONFIG_OBS="$CONFIG_OBS python.o py-value.o py-prettyprint.o py-auto-load.o"
1050 CONFIG_SRCS="$CONFIG_SRCS python/python.c python/py-value.c \
1051 python/py-prettyprint.c python/py-auto-load.c"
1052 fi
1053 AC_SUBST(PYTHON_CFLAGS)
1054 AC_SUBST(PYTHON_CPPFLAGS)
1055 AC_SUBST(PYTHON_LIBS)
1056
1057 # --------------------- #
1058 # Check for libmcheck. #
1059 # --------------------- #
1060
1061 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1062 # but turn it off if Python is enabled with threads, since -lmcheck is
1063 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1064 # and for releases.
1065 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1066 && $development; then
1067 libmcheck_default=yes
1068 else
1069 libmcheck_default=no
1070 fi
1071 GDB_AC_LIBMCHECK(${libmcheck_default})
1072
1073 if test "$ENABLE_LIBMCHECK" = "yes" \
1074 -a "${have_libpython}" != "no" \
1075 -a "${python_has_threads}" = "yes" ; then
1076 AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1077 fi
1078
1079 # ------------------------- #
1080 # Checks for header files. #
1081 # ------------------------- #
1082
1083 AC_HEADER_STDC
1084 # elf_hp.h is for HP/UX 64-bit shared library support.
1085 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1086 thread_db.h \
1087 sys/fault.h \
1088 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1089 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1090 sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1091 termios.h termio.h \
1092 sgtty.h elf_hp.h \
1093 dlfcn.h])
1094 AC_CHECK_HEADERS(sys/proc.h, [], [],
1095 [#if HAVE_SYS_PARAM_H
1096 # include <sys/param.h>
1097 #endif
1098 ])
1099 AC_CHECK_HEADERS(sys/user.h, [], [],
1100 [#if HAVE_SYS_PARAM_H
1101 # include <sys/param.h>
1102 #endif
1103 ])
1104
1105 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1106 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1107 # think that we don't have <curses.h> if we're using GCC.
1108 case $host_os in
1109 solaris2.[[789]])
1110 if test "$GCC" = yes; then
1111 AC_DEFINE(_MSE_INT_H, 1,
1112 [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1113 Solaris 2.[789] when using GCC. ])
1114 fi ;;
1115 esac
1116 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1117 AC_CHECK_HEADERS(term.h, [], [],
1118 [#if HAVE_CURSES_H
1119 # include <curses.h>
1120 #endif
1121 ])
1122
1123 # ------------------------- #
1124 # Checks for declarations. #
1125 # ------------------------- #
1126
1127 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1128 AM_LC_MESSAGES
1129
1130 # ----------------------- #
1131 # Checks for structures. #
1132 # ----------------------- #
1133
1134 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1135
1136 # ------------------ #
1137 # Checks for types. #
1138 # ------------------ #
1139
1140 AC_TYPE_SIGNAL
1141 AC_CHECK_TYPES(socklen_t, [], [],
1142 [#include <sys/types.h>
1143 #include <sys/socket.h>
1144 ])
1145
1146 # ------------------------------------- #
1147 # Checks for compiler characteristics. #
1148 # ------------------------------------- #
1149
1150 AC_C_CONST
1151 AC_C_INLINE
1152 AC_C_BIGENDIAN
1153
1154 # ------------------------------ #
1155 # Checks for library functions. #
1156 # ------------------------------ #
1157
1158 AC_FUNC_ALLOCA
1159 AC_FUNC_MMAP
1160 AC_FUNC_VFORK
1161 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \
1162 pipe poll pread pread64 pwrite readlink resize_term \
1163 sbrk setpgid setpgrp setsid \
1164 sigaction sigprocmask sigsetmask socketpair \
1165 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1166 setrlimit getrlimit posix_madvise waitpid lstat \
1167 ptrace64])
1168 AM_LANGINFO_CODESET
1169 GDB_AC_COMMON
1170
1171 # Check the return and argument types of ptrace. No canned test for
1172 # this, so roll our own.
1173 gdb_ptrace_headers='
1174 #include <sys/types.h>
1175 #if HAVE_SYS_PTRACE_H
1176 # include <sys/ptrace.h>
1177 #endif
1178 #if HAVE_UNISTD_H
1179 # include <unistd.h>
1180 #endif
1181 '
1182 # There is no point in checking if we don't have a prototype.
1183 AC_CHECK_DECLS(ptrace, [], [
1184 : ${gdb_cv_func_ptrace_ret='int'}
1185 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1186 ], $gdb_ptrace_headers)
1187 # Check return type. Varargs (used on GNU/Linux) conflict with the
1188 # empty argument list, so check for that explicitly.
1189 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
1190 AC_TRY_COMPILE($gdb_ptrace_headers,
1191 [extern long ptrace (enum __ptrace_request, ...);],
1192 gdb_cv_func_ptrace_ret='long',
1193 AC_TRY_COMPILE($gdb_ptrace_headers,
1194 [extern int ptrace ();],
1195 gdb_cv_func_ptrace_ret='int',
1196 gdb_cv_func_ptrace_ret='long')))
1197 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
1198 [Define as the return type of ptrace.])
1199 # Check argument types.
1200 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
1201 AC_TRY_COMPILE($gdb_ptrace_headers,
1202 [extern long ptrace (enum __ptrace_request, ...);],
1203 [gdb_cv_func_ptrace_args='int,int,long,long'],[
1204 for gdb_arg1 in 'int' 'long'; do
1205 for gdb_arg2 in 'pid_t' 'int' 'long'; do
1206 for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
1207 for gdb_arg4 in 'int' 'long' 'void *'; do
1208 AC_TRY_COMPILE($gdb_ptrace_headers, [
1209 extern $gdb_cv_func_ptrace_ret
1210 ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
1211 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
1212 break 4;])
1213 for gdb_arg5 in 'int *' 'int' 'long'; do
1214 AC_TRY_COMPILE($gdb_ptrace_headers, [
1215 extern $gdb_cv_func_ptrace_ret
1216 ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
1217 ], [
1218 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
1219 break 5;])
1220 done
1221 done
1222 done
1223 done
1224 done
1225 # Provide a safe default value.
1226 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1227 ])])
1228 ac_save_IFS=$IFS; IFS=','
1229 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
1230 IFS=$ac_save_IFS
1231 shift
1232 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
1233 [Define to the type of arg 3 for ptrace.])
1234 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],
1235 [Define to the type of arg 4 for ptrace.])
1236 if test -n "$[5]"; then
1237 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
1238 [Define to the type of arg 5 for ptrace.])
1239 fi
1240
1241 dnl AC_FUNC_SETPGRP does not work when cross compiling
1242 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1243 if test "$cross_compiling" = no; then
1244 AC_FUNC_SETPGRP
1245 else
1246 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1247 [AC_TRY_COMPILE([
1248 #include <unistd.h>
1249 ], [
1250 if (setpgrp(1,1) == -1)
1251 exit (0);
1252 else
1253 exit (1);
1254 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1255 if test $ac_cv_func_setpgrp_void = yes; then
1256 AC_DEFINE(SETPGRP_VOID, 1)
1257 fi
1258 fi
1259
1260 # Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't do
1261 # since sigsetjmp might only be defined as a macro.
1262 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
1263 [AC_TRY_COMPILE([
1264 #include <setjmp.h>
1265 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
1266 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
1267 if test $gdb_cv_func_sigsetjmp = yes; then
1268 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
1269 fi
1270
1271 # Assume we'll default to using the included libiberty regex.
1272 gdb_use_included_regex=yes
1273
1274 # However, if the system regex is GNU regex, then default to *not*
1275 # using the included regex.
1276 AC_CACHE_CHECK(
1277 [for GNU regex],
1278 [gdb_cv_have_gnu_regex],
1279 [AC_TRY_COMPILE(
1280 [#include <gnu-versions.h>],
1281 [#define REGEX_INTERFACE_VERSION 1
1282 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1283 # error "Version mismatch"
1284 #endif],
1285 gdb_cv_have_gnu_regex=yes,
1286 gdb_cv_have_gnu_regex=no)])
1287 if test $gdb_cv_have_gnu_regex = yes; then
1288 gdb_use_included_regex=no
1289 fi
1290
1291 AC_ARG_WITH(included-regex,
1292 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1293 gdb_with_regex=$withval,
1294 gdb_with_regex=$gdb_use_included_regex)
1295 if test "$gdb_with_regex" = yes; then
1296 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1297 [Define to 1 if the regex included in libiberty should be used.])
1298 fi
1299
1300 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1301 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1302 [#include <sys/param.h>
1303 #include <sys/proc.h>
1304 ])
1305
1306 # See if <sys/lwp.h> defines `struct lwp`.
1307 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1308 [AC_TRY_COMPILE([#include <sys/param.h>
1309 #include <sys/lwp.h>], [struct lwp l;],
1310 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1311 if test $gdb_cv_struct_lwp = yes; then
1312 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1313 [Define to 1 if your system has struct lwp.])
1314 fi
1315
1316 # See if <machine/reg.h> degines `struct reg'.
1317 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1318 [AC_TRY_COMPILE([#include <sys/types.h>
1319 #include <machine/reg.h>], [struct reg r;],
1320 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1321 if test $gdb_cv_struct_reg = yes; then
1322 AC_DEFINE(HAVE_STRUCT_REG, 1,
1323 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1324 fi
1325
1326 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1327 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1328 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1329 [#include <machine/reg.h>])
1330
1331 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1332 # Older amd64 Linux's don't have the fs_base and gs_base members of
1333 # `struct user_regs_struct'.
1334 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1335 [], [], [#include <sys/user.h>])
1336
1337 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1338 AC_MSG_CHECKING(for PTRACE_GETREGS)
1339 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1340 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1341 [PTRACE_GETREGS;],
1342 [gdb_cv_have_ptrace_getregs=yes],
1343 [gdb_cv_have_ptrace_getregs=no])])
1344 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1345 if test $gdb_cv_have_ptrace_getregs = yes; then
1346 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1347 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1348 fi
1349
1350 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1351 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1352 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1353 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1354 [PTRACE_GETFPXREGS;],
1355 [gdb_cv_have_ptrace_getfpxregs=yes],
1356 [gdb_cv_have_ptrace_getfpxregs=no])])
1357 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1358 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1359 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1360 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1361 fi
1362
1363 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1364 AC_MSG_CHECKING(for PT_GETDBREGS)
1365 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1366 [AC_TRY_COMPILE([#include <sys/types.h>
1367 #include <sys/ptrace.h>],
1368 [PT_GETDBREGS;],
1369 [gdb_cv_have_pt_getdbregs=yes],
1370 [gdb_cv_have_pt_getdbregs=no])])
1371 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1372 if test $gdb_cv_have_pt_getdbregs = yes; then
1373 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1374 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1375 fi
1376
1377 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1378 AC_MSG_CHECKING(for PT_GETXMMREGS)
1379 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1380 [AC_TRY_COMPILE([#include <sys/types.h>
1381 #include <sys/ptrace.h>],
1382 [PT_GETXMMREGS;],
1383 [gdb_cv_have_pt_getxmmregs=yes],
1384 [gdb_cv_have_pt_getxmmregs=no])])
1385 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1386 if test $gdb_cv_have_pt_getxmmregs = yes; then
1387 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1388 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1389 fi
1390
1391 # Detect which type of /proc is in use, such as for Solaris.
1392
1393 if test "${target}" = "${host}"; then
1394 case "${host}" in
1395 *-*-sysv4.2* | *-*-sysv5* )
1396 AC_DEFINE(NEW_PROC_API, 1,
1397 [Define if you want to use new multi-fd /proc interface.])
1398 ;;
1399 *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1400 AC_DEFINE(NEW_PROC_API, 1,
1401 [Define if you want to use new multi-fd /proc interface.])
1402 ;;
1403 mips-sgi-irix5*)
1404 # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1405 AC_DEFINE([_KMEMUSER], 1,
1406 [Define to 1 so <sys/proc.h> gets a definition of anon_hdl. Works
1407 around a <sys/proc.h> problem on IRIX 5.])
1408 ;;
1409 esac
1410 fi
1411
1412 if test "$ac_cv_header_sys_procfs_h" = yes; then
1413 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1414 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1415 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1416 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1417 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1418 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1419 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1420 BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1421 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1422 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1423 BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1424
1425
1426 dnl Check for broken prfpregset_t type
1427
1428 dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1429 dnl prfpregset_t type (it's a typedef for the pointer to a struct
1430 dnl instead of the struct itself). We detect this here, and work
1431 dnl around it in gdb_proc_service.h.
1432
1433 if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1434 AC_MSG_CHECKING(whether prfpregset_t type is broken)
1435 AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1436 [AC_TRY_RUN([#include <sys/procfs.h>
1437 int main ()
1438 {
1439 if (sizeof (prfpregset_t) == sizeof (void *))
1440 return 1;
1441 return 0;
1442 }],
1443 gdb_cv_prfpregset_t_broken=no,
1444 gdb_cv_prfpregset_t_broken=yes,
1445 gdb_cv_prfpregset_t_broken=yes)])
1446 AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1447 if test $gdb_cv_prfpregset_t_broken = yes; then
1448 AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1449 [Define if the prfpregset_t type is broken.])
1450 fi
1451 fi
1452 fi
1453
1454 # Check if the compiler supports the `long long' type.
1455
1456 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1457 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1458 [[extern long long foo;]],
1459 [[switch (foo & 2) { case 0: return 1; }]])],
1460 gdb_cv_c_long_long=yes,
1461 gdb_cv_c_long_long=no)])
1462 if test $gdb_cv_c_long_long != yes; then
1463 # libdecnumber requires long long.
1464 AC_MSG_ERROR([Compiler must support long long for GDB.])
1465 fi
1466
1467 # Check if the compiler and runtime support printing long longs.
1468
1469 AC_CACHE_CHECK([for long long support in printf],
1470 gdb_cv_printf_has_long_long,
1471 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1472 [[char buf[32];
1473 long long l = 0;
1474 l = (l << 16) + 0x0123;
1475 l = (l << 16) + 0x4567;
1476 l = (l << 16) + 0x89ab;
1477 l = (l << 16) + 0xcdef;
1478 sprintf (buf, "0x%016llx", l);
1479 return (strcmp ("0x0123456789abcdef", buf));]])],
1480 gdb_cv_printf_has_long_long=yes,
1481 gdb_cv_printf_has_long_long=no,
1482 gdb_cv_printf_has_long_long=no)])
1483 if test $gdb_cv_printf_has_long_long = yes; then
1484 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1485 [Define to 1 if the "%ll" format works to print long longs.])
1486 fi
1487
1488 # Check if the compiler and runtime support printing decfloats.
1489
1490 AC_CACHE_CHECK([for decfloat support in printf],
1491 gdb_cv_printf_has_decfloat,
1492 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1493 [[char buf[64];
1494 _Decimal32 d32 = 1.2345df;
1495 _Decimal64 d64 = 1.2345dd;
1496 _Decimal128 d128 = 1.2345dl;
1497 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1498 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1499 gdb_cv_printf_has_decfloat=yes,
1500 gdb_cv_printf_has_decfloat=no,
1501 gdb_cv_printf_has_decfloat=no)])
1502 if test $gdb_cv_printf_has_decfloat = yes; then
1503 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1504 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1505 fi
1506
1507 # Check if the compiler supports the `long double' type. We can't use
1508 # AC_C_LONG_DOUBLE because that one does additional checks on the
1509 # constants defined in <float.h> that fail on some systems,
1510 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1511
1512 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1513 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1514 gdb_cv_c_long_double=yes,
1515 gdb_cv_c_long_double=no)])
1516 if test $gdb_cv_c_long_double = yes; then
1517 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1518 [Define to 1 if the compiler supports long double.])
1519 fi
1520
1521 # Check if the compiler and runtime support printing long doubles.
1522
1523 AC_CACHE_CHECK([for long double support in printf],
1524 gdb_cv_printf_has_long_double,
1525 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1526 [[char buf[16];
1527 long double f = 3.141592653;
1528 sprintf (buf, "%Lg", f);
1529 return (strncmp ("3.14159", buf, 7));]])],
1530 gdb_cv_printf_has_long_double=yes,
1531 gdb_cv_printf_has_long_double=no,
1532 gdb_cv_printf_has_long_double=no)])
1533 if test $gdb_cv_printf_has_long_double = yes; then
1534 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1535 [Define to 1 if the "%Lg" format works to print long doubles.])
1536 fi
1537
1538 # Check if the compiler and runtime support scanning long doubles.
1539
1540 AC_CACHE_CHECK([for long double support in scanf],
1541 gdb_cv_scanf_has_long_double,
1542 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1543 [[#include <stdio.h>]],
1544 [[char *buf = "3.141592653";
1545 long double f = 0;
1546 sscanf (buf, "%Lg", &f);
1547 return !(f > 3.14159 && f < 3.14160);]])],
1548 gdb_cv_scanf_has_long_double=yes,
1549 gdb_cv_scanf_has_long_double=no,
1550 gdb_cv_scanf_has_long_double=no)])
1551 if test $gdb_cv_scanf_has_long_double = yes; then
1552 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1553 [Define to 1 if the "%Lg" format works to scan long doubles.])
1554 fi
1555
1556 case ${host_os} in
1557 aix*)
1558 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1559 SAVE_LDFLAGS=$LDFLAGS
1560
1561 case $GCC in
1562 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1563 *) gdb_cv_bigtoc=-bbigtoc ;;
1564 esac
1565
1566 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1567 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1568 LDFLAGS="${SAVE_LDFLAGS}"
1569 ])
1570 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1571 ;;
1572 esac
1573
1574 AC_MSG_CHECKING(for the dynamic export flag)
1575 dynamic_list=false
1576 if test "${gdb_native}" = yes; then
1577 # The dynamically loaded libthread_db needs access to symbols in the gdb
1578 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1579 # may not be supported there.
1580 old_LDFLAGS="$LDFLAGS"
1581 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1582 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1583 LDFLAGS="$LDFLAGS $RDYNAMIC"
1584 if test "${have_libpython}" = no; then
1585 AC_TRY_LINK([], [], [dynamic_list=true])
1586 else
1587 # Workaround http://bugs.python.org/issue4434 where static
1588 # libpythonX.Y.a would get its symbols required for
1589 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1590 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1591 old_CFLAGS="$CFLAGS"
1592 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1593 old_LIBS="$LIBS"
1594 LIBS="$LIBS $PYTHON_LIBS"
1595 AC_RUN_IFELSE(
1596 AC_LANG_PROGRAM(
1597 [#include "]${have_libpython}[/Python.h"],
1598 [int err;
1599 Py_Initialize ();
1600 err = PyRun_SimpleString ("import itertools\n");
1601 Py_Finalize ();
1602 return err == 0 ? 0 : 1;]),
1603 [dynamic_list=true], [], [true])
1604 LIBS="$old_LIBS"
1605 CFLAGS="$old_CFLAGS"
1606 fi
1607 LDFLAGS="$old_LDFLAGS"
1608 fi
1609 if $dynamic_list; then
1610 found="-Wl,--dynamic-list"
1611 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1612 else
1613 found="-rdynamic"
1614 RDYNAMIC="-rdynamic"
1615 fi
1616 AC_SUBST(RDYNAMIC)
1617 AC_MSG_RESULT($found)
1618
1619 dnl For certain native configurations, we need to check whether thread
1620 dnl support can be built in or not.
1621 dnl
1622 dnl Note that we only want this if we are both native (host == target),
1623 dnl and not doing a canadian cross build (build == host).
1624
1625 if test ${build} = ${host} -a ${host} = ${target} ; then
1626 case ${host_os} in
1627 solaris*)
1628 # See if thread_db library is around for Solaris thread debugging.
1629 # Note that we must explicitly test for version 1 of the library
1630 # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1631 # the same API.
1632 AC_MSG_CHECKING(for Solaris thread debugging library)
1633 if test -f /usr/lib/libthread_db.so.1 ; then
1634 AC_MSG_RESULT(yes)
1635 AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1636 [Define if using Solaris thread debugging.])
1637 CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1638 CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1639 AC_CHECK_LIB(dl, dlopen)
1640 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1641 # Sun randomly tweaked the prototypes in <proc_service.h>
1642 # at one point.
1643 AC_MSG_CHECKING(if <proc_service.h> is old)
1644 AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1645 AC_TRY_COMPILE([
1646 #include <proc_service.h>
1647 ps_err_e ps_pdwrite
1648 (struct ps_prochandle*, psaddr_t, const void*, size_t);
1649 ],, gdb_cv_proc_service_is_old=no,
1650 gdb_cv_proc_service_is_old=yes)
1651 ])
1652 AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1653 if test $gdb_cv_proc_service_is_old = yes; then
1654 AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1655 [Define if <proc_service.h> on solaris uses int instead of
1656 size_t, and assorted other type changes.])
1657 fi
1658 else
1659 AC_MSG_RESULT(no)
1660 fi
1661 ;;
1662 aix*)
1663 AC_MSG_CHECKING(for AiX thread debugging library)
1664 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1665 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1666 [#ifndef PTHDB_VERSION_3
1667 #error
1668 #endif],
1669 gdb_cv_have_aix_thread_debug=yes,
1670 gdb_cv_have_aix_thread_debug=no)])
1671 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1672 if test $gdb_cv_have_aix_thread_debug = yes; then
1673 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1674 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1675 LIBS="$LIBS -lpthdebug"
1676
1677 # Older versions of AIX do not provide the declaration for
1678 # the getthrds function (it appears that it was introduced
1679 # with AIX 6.x).
1680 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1681 fi
1682 ;;
1683 esac
1684 AC_SUBST(CONFIG_LDFLAGS)
1685 fi
1686
1687 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1688 dnl other error codes.
1689 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1690 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1691 gdb_cv_thread_db_h_has_td_notalloc,
1692 AC_TRY_COMPILE(
1693 [#include <thread_db.h>],
1694 [int i = TD_NOTALLOC;],
1695 gdb_cv_thread_db_h_has_td_notalloc=yes,
1696 gdb_cv_thread_db_h_has_td_notalloc=no
1697 )
1698 )
1699 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1700 gdb_cv_thread_db_h_has_td_version,
1701 AC_TRY_COMPILE(
1702 [#include <thread_db.h>],
1703 [int i = TD_VERSION;],
1704 gdb_cv_thread_db_h_has_td_version=yes,
1705 gdb_cv_thread_db_h_has_td_version=no
1706 )
1707 )
1708 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1709 gdb_cv_thread_db_h_has_td_notls,
1710 AC_TRY_COMPILE(
1711 [#include <thread_db.h>],
1712 [int i = TD_NOTLS;],
1713 gdb_cv_thread_db_h_has_td_notls=yes,
1714 gdb_cv_thread_db_h_has_td_notls=no
1715 )
1716 )
1717 fi
1718 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1719 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1720 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1721 fi
1722 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1723 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1724 [Define if <thread_db.h> has the TD_VERSION error code.])
1725 fi
1726 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1727 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1728 [Define if <thread_db.h> has the TD_NOTLS error code.])
1729 fi
1730
1731 dnl See if we have a sys/syscall header file that has __NR_tkill.
1732 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1733 AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1734 gdb_cv_sys_syscall_h_has_tkill,
1735 AC_TRY_COMPILE(
1736 [#include <sys/syscall.h>],
1737 [int i = __NR_tkill;],
1738 gdb_cv_sys_syscall_h_has_tkill=yes,
1739 gdb_cv_sys_syscall_h_has_tkill=no
1740 )
1741 )
1742 fi
1743 dnl See if we can issue tkill syscall.
1744 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes"; then
1745 AC_CHECK_FUNC(syscall,
1746 AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1747 )
1748 fi
1749
1750 dnl Check if we can disable the virtual address space randomization.
1751 dnl The functionality of setarch -R.
1752 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1753 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1754 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1755 # define ADDR_NO_RANDOMIZE 0x0040000
1756 # endif
1757 /* Test the flag could be set and stays set. */
1758 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1759 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1760 return 1])])
1761 AC_RUN_IFELSE([PERSONALITY_TEST],
1762 [have_personality=true],
1763 [have_personality=false],
1764 [AC_LINK_IFELSE([PERSONALITY_TEST],
1765 [have_personality=true],
1766 [have_personality=false])])
1767 if $have_personality
1768 then
1769 AC_DEFINE([HAVE_PERSONALITY], 1,
1770 [Define if you support the personality syscall.])
1771 fi
1772
1773 dnl Set the host's .gdbinit filename.
1774 case $host_os in
1775 go32* | *djgpp*)
1776 gdbinit=gdb.ini
1777 ;;
1778 *)
1779 gdbinit=.gdbinit
1780 ;;
1781 esac
1782 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1783
1784 dnl Handle optional features that can be enabled.
1785
1786 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1787 # except that the argument to --with-sysroot is optional.
1788 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1789 if test "x$with_sysroot" = xyes; then
1790 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1791 fi
1792 AC_ARG_WITH(sysroot,
1793 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1794 [search for usr/lib et al within DIR]),
1795 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1796 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1797 [search for usr/lib et al within DIR])
1798 AC_SUBST(TARGET_SYSTEM_ROOT)
1799 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1800
1801 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1802 [automatically load a system-wide gdbinit file],
1803 [])
1804
1805 AC_ARG_ENABLE(werror,
1806 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1807 [case "${enableval}" in
1808 yes | y) ERROR_ON_WARNING="yes" ;;
1809 no | n) ERROR_ON_WARNING="no" ;;
1810 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1811 esac])
1812
1813 # Enable -Werror by default when using gcc. Turn it off for releases.
1814 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
1815 ERROR_ON_WARNING=yes
1816 fi
1817
1818 WERROR_CFLAGS=""
1819 if test "${ERROR_ON_WARNING}" = yes ; then
1820 WERROR_CFLAGS="-Werror"
1821 fi
1822
1823 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1824 -Wpointer-sign \
1825 -Wno-unused -Wunused-value -Wunused-function \
1826 -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
1827 -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \
1828 -Wold-style-declaration -Wold-style-definition"
1829
1830 # Enable -Wno-format by default when using gcc on mingw since many
1831 # GCC versions complain about %I64.
1832 case "${host}" in
1833 *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1834 *) build_warnings="$build_warnings -Wformat-nonliteral" ;;
1835 esac
1836
1837 AC_ARG_ENABLE(build-warnings,
1838 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
1839 [case "${enableval}" in
1840 yes) ;;
1841 no) build_warnings="-w";;
1842 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1843 build_warnings="${build_warnings} ${t}";;
1844 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1845 build_warnings="${t} ${build_warnings}";;
1846 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1847 esac
1848 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1849 echo "Setting compiler warning flags = $build_warnings" 6>&1
1850 fi])dnl
1851 AC_ARG_ENABLE(gdb-build-warnings,
1852 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
1853 [case "${enableval}" in
1854 yes) ;;
1855 no) build_warnings="-w";;
1856 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1857 build_warnings="${build_warnings} ${t}";;
1858 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1859 build_warnings="${t} ${build_warnings}";;
1860 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1861 esac
1862 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1863 echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1864 fi])dnl
1865 WARN_CFLAGS=""
1866 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1867 then
1868 AC_MSG_CHECKING(compiler warning flags)
1869 # Separate out the -Werror flag as some files just cannot be
1870 # compiled with it enabled.
1871 for w in ${build_warnings}; do
1872 case $w in
1873 -Werr*) WERROR_CFLAGS=-Werror ;;
1874 *) # Check that GCC accepts it
1875 saved_CFLAGS="$CFLAGS"
1876 CFLAGS="$CFLAGS $w"
1877 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1878 CFLAGS="$saved_CFLAGS"
1879 esac
1880 done
1881 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
1882 fi
1883 AC_SUBST(WARN_CFLAGS)
1884 AC_SUBST(WERROR_CFLAGS)
1885
1886 # In the Cygwin environment, we need some additional flags.
1887 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1888 [AC_EGREP_CPP(^lose$, [
1889 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1890 lose
1891 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1892
1893
1894 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1895 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1896 case ${host} in
1897 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1898 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1899 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1900 esac
1901 AC_SUBST(SER_HARDWIRE)
1902
1903 # libreadline needs libuser32.a in a cygwin environment
1904 WIN32LIBS=
1905 if test x$gdb_cv_os_cygwin = xyes; then
1906 WIN32LIBS="-luser32"
1907 case "${target}" in
1908 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1909 ;;
1910 esac
1911 fi
1912
1913 # The ser-tcp.c module requires sockets.
1914 case ${host} in
1915 *mingw32*)
1916 AC_DEFINE(USE_WIN32API, 1,
1917 [Define if we should use the Windows API, instead of the
1918 POSIX API. On Windows, we use the Windows API when
1919 building for MinGW, but the POSIX API when building
1920 for Cygwin.])
1921 WIN32LIBS="$WIN32LIBS -lws2_32"
1922 ;;
1923 esac
1924 AC_SUBST(WIN32LIBS)
1925
1926 # Add ELF support to GDB, but only if BFD includes ELF support.
1927 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1928 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1929 if test $gdb_cv_var_elf = yes; then
1930 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
1931 AC_DEFINE(HAVE_ELF, 1,
1932 [Define if ELF support should be included.])
1933 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1934 if test "$plugins" = "yes"; then
1935 AC_SEARCH_LIBS(dlopen, dl)
1936 fi
1937 fi
1938
1939 # Add macho support to GDB, but only if BFD includes it.
1940 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1941 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1942 if test $gdb_cv_var_macho = yes; then
1943 CONFIG_OBS="$CONFIG_OBS machoread.o"
1944 fi
1945
1946 # Add SOM support to GDB, but only if BFD includes it.
1947 GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som,
1948 [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h)
1949 if test $gdb_cv_var_som = yes; then
1950 CONFIG_OBS="$CONFIG_OBS somread.o"
1951 fi
1952
1953 # Add any host-specific objects to GDB.
1954 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1955
1956 # If building on ELF, look for lzma support for embedded compressed debug info.
1957 if test $gdb_cv_var_elf = yes; then
1958 AC_ARG_WITH(lzma,
1959 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1960 [], [with_lzma=auto])
1961 AC_MSG_CHECKING([whether to use lzma])
1962 AC_MSG_RESULT([$with_lzma])
1963
1964 if test "${with_lzma}" != no; then
1965 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1966 [lzma_index_iter iter;
1967 lzma_index_iter_init (&iter, 0);
1968 lzma_mf_is_supported (LZMA_MF_HC3);])
1969 if test "$HAVE_LIBLZMA" != yes; then
1970 if test "$with_lzma" = yes; then
1971 AC_MSG_ERROR([missing liblzma for --with-lzma])
1972 fi
1973 fi
1974 fi
1975 fi
1976
1977 LIBGUI="../libgui/src/libgui.a"
1978 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1979 AC_SUBST(LIBGUI)
1980 AC_SUBST(GUI_CFLAGS_X)
1981
1982 WIN32LDAPP=
1983 AC_SUBST(WIN32LIBS)
1984 AC_SUBST(WIN32LDAPP)
1985
1986 case "${host}" in
1987 *-*-cygwin* | *-*-mingw* )
1988 configdir="win"
1989 ;;
1990 *)
1991 configdir="unix"
1992 ;;
1993 esac
1994
1995 GDBTKLIBS=
1996 if test "${enable_gdbtk}" = "yes"; then
1997
1998 # Gdbtk must have an absolute path to srcdir in order to run
1999 # properly when not installed.
2000 here=`pwd`
2001 cd ${srcdir}
2002 GDBTK_SRC_DIR=`pwd`
2003 cd $here
2004
2005 SC_PATH_TCLCONFIG
2006
2007 # If $no_tk is nonempty, then we can't do Tk, and there is no
2008 # point to doing Tcl.
2009 SC_PATH_TKCONFIG
2010
2011 if test -z "${no_tcl}" -a -z "${no_tk}"; then
2012 SC_LOAD_TCLCONFIG
2013
2014 # Check for in-tree tcl
2015 here=`pwd`
2016 cd ${srcdir}/..
2017 topdir=`pwd`
2018 cd ${here}
2019
2020 intree="no"
2021 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2022 intree="yes"
2023 fi
2024
2025 # Find Tcl private headers
2026 if test x"${intree}" = xno; then
2027 CY_AC_TCL_PRIVATE_HEADERS
2028 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2029 TCL_LIBRARY="${TCL_LIB_SPEC}"
2030 TCL_DEPS=""
2031 else
2032 # If building tcl in the same src tree, private headers
2033 # are not needed, but we need to be sure to use the right
2034 # headers library
2035 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2036 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2037 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2038 fi
2039 AC_SUBST(TCL_INCLUDE)
2040 AC_SUBST(TCL_LIBRARY)
2041 AC_SUBST(TCL_DEPS)
2042
2043 SC_LOAD_TKCONFIG
2044
2045 # Check for in-tree Tk
2046 intree="no"
2047 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2048 intree="yes"
2049 fi
2050
2051 # Find Tk private headers
2052 if test x"${intree}" = xno; then
2053 CY_AC_TK_PRIVATE_HEADERS
2054 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2055 TK_LIBRARY=${TK_LIB_SPEC}
2056 TK_DEPS=""
2057 else
2058 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2059 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2060 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2061 fi
2062 AC_SUBST(TK_INCLUDE)
2063 AC_SUBST(TK_LIBRARY)
2064 AC_SUBST(TK_DEPS)
2065 AC_SUBST(TK_XINCLUDES)
2066
2067 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2068
2069 # Include some libraries that Tcl and Tk want.
2070 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2071 # Yes, the ordering seems wrong here. But it isn't.
2072 # TK_LIBS is the list of libraries that need to be linked
2073 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2074 # were in LIBS then any link tests after this point would
2075 # try to include things like `$(LIBGUI)', which wouldn't work.
2076 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2077
2078 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2079 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2080 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2081 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2082 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2083 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2084 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2085
2086 if test x$gdb_cv_os_cygwin = xyes; then
2087 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2088 WIN32LDAPP="-Wl,--subsystem,console"
2089 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2090 fi
2091
2092 AC_CONFIG_SUBDIRS(gdbtk)
2093 fi
2094 fi
2095
2096 AC_SUBST(X_CFLAGS)
2097 AC_SUBST(X_LDFLAGS)
2098 AC_SUBST(X_LIBS)
2099 AC_SUBST(GDBTKLIBS)
2100 AC_SUBST(GDBTK_CFLAGS)
2101 AC_SUBST(GDBTK_SRC_DIR)
2102
2103 AC_PATH_X
2104
2105 # Unlike the sim directory, whether a simulator is linked is controlled by
2106 # presence of a gdb_sim definition in the target configure.tgt entry.
2107 # This code just checks for a few cases where we'd like to ignore those
2108 # definitions, even when they're present in the '.mt' file. These cases
2109 # are when --disable-sim is specified, or if the simulator directory is
2110 # not part of the source tree.
2111 #
2112 AC_ARG_ENABLE(sim,
2113 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2114 [echo "enable_sim = $enable_sim";
2115 echo "enableval = ${enableval}";
2116 case "${enableval}" in
2117 yes) ignore_sim=false ;;
2118 no) ignore_sim=true ;;
2119 *) ignore_sim=false ;;
2120 esac],
2121 [ignore_sim=false])
2122
2123 if test ! -d "${srcdir}/../sim"; then
2124 ignore_sim=true
2125 fi
2126
2127 SIM=
2128 SIM_OBS=
2129 if test "${ignore_sim}" = "false"; then
2130 if test x"${gdb_sim}" != x ; then
2131 SIM="${gdb_sim}"
2132 SIM_OBS="remote-sim.o"
2133 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2134 fi
2135 fi
2136 AC_SUBST(SIM)
2137 AC_SUBST(SIM_OBS)
2138
2139 AC_SUBST(ENABLE_CFLAGS)
2140 AC_SUBST(PROFILE_CFLAGS)
2141
2142 AC_SUBST(CONFIG_OBS)
2143 AC_SUBST(CONFIG_DEPS)
2144 AC_SUBST(CONFIG_SRCS)
2145 AC_SUBST(CONFIG_ALL)
2146 AC_SUBST(CONFIG_CLEAN)
2147 AC_SUBST(CONFIG_INSTALL)
2148 AC_SUBST(CONFIG_UNINSTALL)
2149
2150 # List of host floatformats.
2151 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2152 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2153 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2154
2155 # target_subdir is used by the testsuite to find the target libraries.
2156 target_subdir=
2157 if test "${host}" != "${target}"; then
2158 target_subdir="${target_alias}/"
2159 fi
2160 AC_SUBST(target_subdir)
2161
2162 frags=
2163 if test "${gdb_native}" = "yes"; then
2164 host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2165 if test ! -f ${host_makefile_frag}; then
2166 AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2167 fi
2168 frags="$frags $host_makefile_frag"
2169 else
2170 host_makefile_frag=/dev/null
2171 fi
2172
2173 AC_SUBST_FILE(host_makefile_frag)
2174 AC_SUBST(frags)
2175
2176 changequote(,)dnl
2177 if test "${gdb_native}" = "yes"; then
2178 # We pick this up from the host configuration file (.mh) because we
2179 # do not have a native configuration Makefile fragment.
2180 nativefile=`sed -n '
2181 s/NAT_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
2182 ' ${host_makefile_frag}`
2183 fi
2184 changequote([,])
2185
2186 if test x"${gdb_osabi}" != x ; then
2187 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2188 [Define to the default OS ABI for this configuration.])
2189 fi
2190
2191 # Enable multi-ice-gdb-server.
2192 AC_ARG_ENABLE(multi-ice,
2193 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2194 [case $enableval in
2195 yes | no)
2196 ;;
2197 *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2198 esac])
2199 if test "x$enable_multi_ice" = xyes; then
2200 AC_CONFIG_SUBDIRS(multi-ice)
2201 fi
2202
2203 AC_ARG_ENABLE(gdbserver,
2204 AS_HELP_STRING([--enable-gdbserver],
2205 [automatically build gdbserver (yes/no/auto, default is auto)]),
2206 [case "${enableval}" in
2207 yes| no|auto) ;;
2208 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2209 esac],[enable_gdbserver=auto])
2210
2211 # We only build gdbserver automatically in a native configuration, and
2212 # only if the user did not explicitly disable its build.
2213 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2214 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2215 if test "x$build_gdbserver" = xyes; then
2216 AC_MSG_RESULT(yes)
2217 AC_CONFIG_SUBDIRS(gdbserver)
2218 gdbserver_build_enabled=yes
2219 else
2220 AC_MSG_RESULT(no)
2221 fi
2222 fi
2223
2224 # If the user explicitly request the gdbserver to be built, verify that
2225 # we were in fact able to enable it.
2226 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2227 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2228 fi
2229
2230 # Check for babeltrace and babeltrace-ctf
2231 AC_ARG_WITH(babeltrace,
2232 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2233 [], [with_babeltrace=auto])
2234 AC_MSG_CHECKING([whether to use babeltrace])
2235 AC_MSG_RESULT([$with_babeltrace])
2236
2237 if test "x$with_babeltrace" = "xno"; then
2238 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2239 else
2240 # Append -Werror to CFLAGS so that configure can catch the warning
2241 # "assignment from incompatible pointer type", which is related to
2242 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2243 # in GDB, while babeltrace 1.0.3 is broken.
2244 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2245 # safe to save and restore CFLAGS here.
2246 saved_CFLAGS=$CFLAGS
2247 CFLAGS="$CFLAGS -Werror"
2248 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2249 [#include <babeltrace/babeltrace.h>
2250 #include <babeltrace/ctf/events.h>
2251 #include <babeltrace/ctf/iterator.h>],
2252 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2253 struct bt_ctf_event *event = NULL;
2254 const struct bt_definition *scope;
2255
2256 scope = bt_ctf_get_top_level_scope (event,
2257 BT_STREAM_EVENT_HEADER);
2258 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2259 ])
2260 CFLAGS=$saved_CFLAGS
2261
2262 if test "$HAVE_LIBBABELTRACE" != yes; then
2263 if test "$with_babeltrace" = yes; then
2264 AC_MSG_ERROR([babeltrace is missing or unusable])
2265 else
2266 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2267 fi
2268 fi
2269 fi
2270
2271 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2272 # to an empty version.
2273
2274 files=
2275 links=
2276
2277 rm -f nm.h
2278 if test "${nativefile}" != ""; then
2279 case "${nativefile}" in
2280 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2281 * ) GDB_NM_FILE="${nativefile}"
2282 esac
2283 files="${files} ${GDB_NM_FILE}"
2284 links="${links} nm.h"
2285 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2286 fi
2287 AC_SUBST(GDB_NM_FILE)
2288
2289 AC_LINK_FILES($files, $links)
2290
2291 dnl Check for exe extension set on certain hosts (e.g. Win32)
2292 AC_EXEEXT
2293
2294 dnl Detect the character set used by this host.
2295 dnl At the moment, we just assume it's UTF-8.
2296 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2297 [Define to be a string naming the default host character set.])
2298
2299 # Undo the $ec_script escaping suitable for Makefile.
2300 transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'`
2301 GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"`
2302 if test "x$GDB_TRANSFORM_NAME" = x; then
2303 GDB_TRANSFORM_NAME=gdb
2304 fi
2305 AC_SUBST(GDB_TRANSFORM_NAME)
2306 GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"`
2307 if test "x$GCORE_TRANSFORM_NAME" = x; then
2308 GCORE_TRANSFORM_NAME=gcore
2309 fi
2310 AC_SUBST(GCORE_TRANSFORM_NAME)
2311 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2312
2313 AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
2314 [
2315 case x$CONFIG_HEADERS in
2316 xconfig.h:config.in)
2317 echo > stamp-h ;;
2318 esac
2319 ])
2320
2321 exit 0
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