1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000, 2002-2012 Free Software Foundation, Inc.
4 dnl This file is part of GDB.
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.
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.
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/>.
19 dnl Process this file with autoconf to produce a configure script.
24 AC_CONFIG_HEADER(config.h:config.in)
43 # Check for the 'make' the user wants to use.
44 AC_CHECK_PROGS(MAKE, make)
46 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
47 proc_service.h sys/procfs.h thread_db.h linux/elf.h dnl
49 errno.h fcntl.h signal.h sys/file.h malloc.h dnl
50 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
51 netinet/tcp.h arpa/inet.h sys/wait.h sys/un.h)
52 AC_CHECK_FUNCS(pread pwrite pread64 readlink)
53 AC_REPLACE_FUNCS(vasprintf vsnprintf)
59 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
60 Equivalent to --with-ust-include=PATH/include
61 plus --with-ust-lib=PATH/lib])
62 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
63 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
75 ustlibs="-L$with_ust/lib -lust"
76 ustinc="-I$with_ust/include "
79 if test "x$with_ust_include" != x; then
80 ustinc="-I$with_ust_include "
82 if test "x$with_ust_lib" != x; then
83 ustlibs="-L$with_ust_lib -lust"
86 if test "x$with_ust" != "xno"; then
87 saved_CFLAGS="$CFLAGS"
88 CFLAGS="$CFLAGS $ustinc"
89 AC_MSG_CHECKING([for ust])
91 #define CONFIG_UST_GDB_INTEGRATION
94 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
95 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
96 CFLAGS="$saved_CFLAGS"
99 # Flags needed for UST
103 AC_ARG_ENABLE(werror,
104 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
105 [case "${enableval}" in
106 yes | y) ERROR_ON_WARNING="yes" ;;
107 no | n) ERROR_ON_WARNING="no" ;;
108 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
111 # Enable -Werror by default when using gcc
112 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
117 if test "${ERROR_ON_WARNING}" = yes ; then
118 WERROR_CFLAGS="-Werror"
121 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
122 -Wformat-nonliteral -Wno-char-subscripts"
125 if test "x$GCC" = xyes
127 AC_MSG_CHECKING(compiler warning flags)
128 # Separate out the -Werror flag as some files just cannot be
129 # compiled with it enabled.
130 for w in ${build_warnings}; do
132 -Werr*) WERROR_CFLAGS=-Werror ;;
133 *) # Check that GCC accepts it
134 saved_CFLAGS="$CFLAGS"
136 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
137 CFLAGS="$saved_CFLAGS"
140 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
142 AC_SUBST(WARN_CFLAGS)
143 AC_SUBST(WERROR_CFLAGS)
145 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
146 dnl debugging messages. It lives in -ldl which is handled below so we don't
147 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
151 AC_CHECK_FUNCS(dladdr)
155 AC_MSG_CHECKING(for errno)
159 #endif], [static int x; x = errno;],
160 [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) have_errno=yes])
161 if test $have_errno = no; then
165 #endif], [extern int errno; static int x; x = errno;],
166 [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
170 AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf])
172 AC_CHECK_TYPES(socklen_t, [], [],
173 [#include <sys/types.h>
174 #include <sys/socket.h>
177 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
181 ACX_PKGVERSION([GDB])
182 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
183 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
184 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
186 # Check for various supplementary target information (beyond the
187 # triplet) which might affect the choices in configure.srv.
192 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
193 [save_CPPFLAGS="$CPPFLAGS"
194 CPPFLAGS="$CPPFLAGS $CFLAGS"
195 AC_EGREP_CPP([got it], [
199 ], [gdb_cv_i386_is_x86_64=yes],
200 [gdb_cv_i386_is_x86_64=no])
201 CPPFLAGS="$save_CPPFLAGS"])
204 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
205 [save_CPPFLAGS="$CPPFLAGS"
206 CPPFLAGS="$CPPFLAGS $CFLAGS"
207 AC_EGREP_CPP([got it], [
211 ], [gdb_cv_m68k_is_coldfire=yes],
212 [gdb_cv_m68k_is_coldfire=no])
213 CPPFLAGS="$save_CPPFLAGS"])
217 . ${srcdir}/configure.srv
219 if test "${srv_mingwce}" = "yes"; then
221 elif test "${srv_mingw}" = "yes"; then
222 LIBS="$LIBS -lws2_32"
223 elif test "${srv_qnx}" = "yes"; then
224 LIBS="$LIBS -lsocket"
225 elif test "${srv_lynxos}" = "yes"; then
226 LIBS="$LIBS -lnetinet"
229 if test "${srv_mingw}" = "yes"; then
230 AC_DEFINE(USE_WIN32API, 1,
231 [Define if we should use the Windows API, instead of the
232 POSIX API. On Windows, we use the Windows API when
233 building for MinGW, but the POSIX API when building
237 if test "${srv_linux_usrregs}" = "yes"; then
238 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
239 [Define if the target supports PTRACE_PEEKUSR for register ]
243 if test "${srv_linux_regsets}" = "yes"; then
244 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
245 [Define if the target supports register sets.])
247 AC_MSG_CHECKING(for PTRACE_GETREGS)
248 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
249 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
251 [gdbsrv_cv_have_ptrace_getregs=yes],
252 [gdbsrv_cv_have_ptrace_getregs=no])])
253 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
254 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
255 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
256 [Define if the target supports PTRACE_GETREGS for register ]
260 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
261 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
262 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
263 [PTRACE_GETFPXREGS;],
264 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
265 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
266 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
267 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
268 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
269 [Define if the target supports PTRACE_GETFPXREGS for extended ]
274 if test "$ac_cv_header_sys_procfs_h" = yes; then
275 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
276 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
277 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
278 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
281 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
282 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
283 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
286 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
287 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
288 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
291 dnl Check for libdl, but do not add it to LIBS as only gdbserver
292 dnl needs it (and gdbreplay doesn't).
294 AC_CHECK_LIB(dl, dlopen)
301 if test "$srv_linux_thread_db" = "yes"; then
302 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
304 AC_MSG_CHECKING(for the dynamic export flag)
305 old_LDFLAGS="$LDFLAGS"
306 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
308 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
309 LDFLAGS="$LDFLAGS $RDYNAMIC"
311 [found="-Wl,--dynamic-list"
312 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
313 [RDYNAMIC="-rdynamic"
314 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
320 LDFLAGS="$old_LDFLAGS"
321 AC_MSG_RESULT($found)
323 srv_libs="-lthread_db"
326 srv_thread_depfiles="thread-db.o proc-service.o"
327 USE_THREAD_DB="-DUSE_THREAD_DB"
328 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
329 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
330 [gdbsrv_cv_have_td_version=yes],
331 [gdbsrv_cv_have_td_version=no])])
332 if test $gdbsrv_cv_have_td_version = yes; then
333 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
337 AC_ARG_WITH(libthread-db,
338 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
339 [srv_libthread_db_path="${withval}"
340 srv_libs="$srv_libthread_db_path"
343 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
344 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
347 if test "$srv_xmlfiles" != ""; then
348 srv_xmlbuiltin="xml-builtin.o"
349 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
351 tmp_xmlfiles=$srv_xmlfiles
353 for f in $tmp_xmlfiles; do
354 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
358 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
359 GDBSERVER_LIBS="$srv_libs"
361 dnl Check whether the target supports __sync_*_compare_and_swap.
362 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
363 gdbsrv_cv_have_sync_builtins, [
364 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
365 gdbsrv_cv_have_sync_builtins=yes,
366 gdbsrv_cv_have_sync_builtins=no)])
367 if test $gdbsrv_cv_have_sync_builtins = yes; then
368 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
369 [Define to 1 if the target supports __sync_*_compare_and_swap])
372 dnl Check for -fvisibility=hidden support in the compiler.
373 saved_cflags="$CFLAGS"
374 CFLAGS="$CFLAGS -fvisibility=hidden"
375 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
376 [gdbsrv_cv_have_visibility_hidden=yes],
377 [gdbsrv_cv_have_visibility_hidden=no])
378 CFLAGS="$saved_cflags"
380 dnl Check if we can disable the virtual address space randomization.
381 dnl The functionality of setarch -R.
382 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
383 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
384 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
385 # define ADDR_NO_RANDOMIZE 0x0040000
387 /* Test the flag could be set and stays set. */
388 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
389 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
391 AC_RUN_IFELSE([PERSONALITY_TEST],
392 [gdbsrv_cv_have_personality=true],
393 [gdbsrv_cv_have_personality=false],
394 [AC_LINK_IFELSE([PERSONALITY_TEST],
395 [gdbsrv_cv_have_personality=true],
396 [gdbsrv_cv_have_personality=false])])
397 if $gdbsrv_cv_have_personality
399 AC_DEFINE([HAVE_PERSONALITY], 1,
400 [Define if you support the personality syscall.])
407 # check whether to enable the inprocess agent
408 if test "$ipa_obj" != "" \
409 -a "$gdbsrv_cv_have_sync_builtins" = yes \
410 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
416 AC_ARG_ENABLE(inprocess-agent,
417 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
418 [case "$enableval" in
419 yes) want_ipa=true ;;
420 no) want_ipa=false ;;
421 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
423 [want_ipa=$have_ipa])
427 IPA_DEPFILES="$ipa_obj"
428 extra_libraries="$extra_libraries libinproctrace.so"
430 AC_MSG_ERROR([inprocess agent not supported for this target])
434 AC_SUBST(GDBSERVER_DEPFILES)
435 AC_SUBST(GDBSERVER_LIBS)
436 AC_SUBST(USE_THREAD_DB)
437 AC_SUBST(srv_xmlbuiltin)
438 AC_SUBST(srv_xmlfiles)
439 AC_SUBST(IPA_DEPFILES)
440 AC_SUBST(extra_libraries)
443 # GDBserver does not use automake, but gnulib does. This line lets
444 # us generate its Makefile.in.
445 AM_INIT_AUTOMAKE(gdbserver, UNUSED-VERSION, [no-define])
448 if test x"$STDINT_H" != x; then
449 GNULIB_STDINT_H=gnulib/$STDINT_H
451 AC_SUBST(GNULIB_STDINT_H)
453 AC_OUTPUT(Makefile gnulib/import/Makefile:${srcdir}/../gnulib/import/Makefile.in,
454 [case x$CONFIG_HEADERS in