1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000-2014 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)
44 # Set the 'development' global.
45 . $srcdir/../../bfd/development.sh
47 # Enable -lmcheck by default (it provides cheap-enough memory
48 # mangling), but turn it off for releases.
54 GDB_AC_LIBMCHECK(${libmcheck_default})
56 ACX_NONCANONICAL_TARGET
59 # Dependency checking.
61 ZW_PROG_COMPILER_DEPENDENCIES([CC])
63 # Check for the 'make' the user wants to use.
64 AC_CHECK_PROGS(MAKE, make)
66 case "`$MAKE --version 2>&1 | sed 1q`" in
71 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
74 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
75 # to find the the source subdir to be configured directly under
76 # gdbserver/. We need to build gnulib under some other directory not
77 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
78 # build it in the same directory, when building in the source dir.
79 ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"])
81 ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
83 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
84 proc_service.h sys/procfs.h linux/elf.h dnl
85 errno.h fcntl.h signal.h sys/file.h malloc.h dnl
86 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
87 netinet/tcp.h arpa/inet.h)
88 AC_CHECK_FUNCS(pread pwrite pread64 readlink)
89 AC_REPLACE_FUNCS(vasprintf vsnprintf)
97 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
98 Equivalent to --with-ust-include=PATH/include
99 plus --with-ust-lib=PATH/lib])
100 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
101 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
113 ustlibs="-L$with_ust/lib -lust"
114 ustinc="-I$with_ust/include "
117 if test "x$with_ust_include" != x; then
118 ustinc="-I$with_ust_include "
120 if test "x$with_ust_lib" != x; then
121 ustlibs="-L$with_ust_lib -lust"
124 if test "x$with_ust" != "xno"; then
125 saved_CFLAGS="$CFLAGS"
126 CFLAGS="$CFLAGS $ustinc"
127 AC_MSG_CHECKING([for ust])
129 #define CONFIG_UST_GDB_INTEGRATION
132 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
133 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
134 CFLAGS="$saved_CFLAGS"
137 # Flags needed for UST
141 AC_ARG_ENABLE(werror,
142 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
143 [case "${enableval}" in
144 yes | y) ERROR_ON_WARNING="yes" ;;
145 no | n) ERROR_ON_WARNING="no" ;;
146 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
149 # Enable -Werror by default when using gcc. Turn it off for releases.
150 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
155 if test "${ERROR_ON_WARNING}" = yes ; then
156 WERROR_CFLAGS="-Werror"
159 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
160 -Wformat-nonliteral -Wno-char-subscripts -Wempty-body"
163 if test "x$GCC" = xyes
165 AC_MSG_CHECKING(compiler warning flags)
166 # Separate out the -Werror flag as some files just cannot be
167 # compiled with it enabled.
168 for w in ${build_warnings}; do
170 -Werr*) WERROR_CFLAGS=-Werror ;;
171 *) # Check that GCC accepts it
172 saved_CFLAGS="$CFLAGS"
174 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
175 CFLAGS="$saved_CFLAGS"
178 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
180 AC_SUBST(WARN_CFLAGS)
181 AC_SUBST(WERROR_CFLAGS)
183 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
184 dnl debugging messages. It lives in -ldl which is handled below so we don't
185 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
189 AC_CHECK_FUNCS(dladdr)
192 AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf])
194 AC_CHECK_TYPES(socklen_t, [], [],
195 [#include <sys/types.h>
196 #include <sys/socket.h>
199 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
203 ACX_PKGVERSION([GDB])
204 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
205 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
206 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
208 # Check for various supplementary target information (beyond the
209 # triplet) which might affect the choices in configure.srv.
214 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
215 [save_CPPFLAGS="$CPPFLAGS"
216 CPPFLAGS="$CPPFLAGS $CFLAGS"
217 AC_EGREP_CPP([got it], [
221 ], [gdb_cv_i386_is_x86_64=yes],
222 [gdb_cv_i386_is_x86_64=no])
223 CPPFLAGS="$save_CPPFLAGS"])
226 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
227 [save_CPPFLAGS="$CPPFLAGS"
228 CPPFLAGS="$CPPFLAGS $CFLAGS"
229 AC_EGREP_CPP([got it], [
233 ], [gdb_cv_m68k_is_coldfire=yes],
234 [gdb_cv_m68k_is_coldfire=no])
235 CPPFLAGS="$save_CPPFLAGS"])
239 . ${srcdir}/configure.srv
241 if test "${srv_mingwce}" = "yes"; then
243 elif test "${srv_mingw}" = "yes"; then
244 LIBS="$LIBS -lws2_32"
245 elif test "${srv_qnx}" = "yes"; then
246 LIBS="$LIBS -lsocket"
247 elif test "${srv_lynxos}" = "yes"; then
248 LIBS="$LIBS -lnetinet"
251 if test "${srv_mingw}" = "yes"; then
252 AC_DEFINE(USE_WIN32API, 1,
253 [Define if we should use the Windows API, instead of the
254 POSIX API. On Windows, we use the Windows API when
255 building for MinGW, but the POSIX API when building
259 if test "${srv_linux_usrregs}" = "yes"; then
260 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
261 [Define if the target supports PTRACE_PEEKUSR for register ]
265 if test "${srv_linux_regsets}" = "yes"; then
266 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
267 [Define if the target supports register sets.])
269 AC_MSG_CHECKING(for PTRACE_GETREGS)
270 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
271 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
273 [gdbsrv_cv_have_ptrace_getregs=yes],
274 [gdbsrv_cv_have_ptrace_getregs=no])])
275 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
276 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
277 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
278 [Define if the target supports PTRACE_GETREGS for register ]
282 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
283 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
284 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
285 [PTRACE_GETFPXREGS;],
286 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
287 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
288 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
289 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
290 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
291 [Define if the target supports PTRACE_GETFPXREGS for extended ]
296 if test "${srv_linux_btrace}" = "yes"; then
297 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
298 [Define if the target supports branch tracing.])
301 if test "$ac_cv_header_sys_procfs_h" = yes; then
302 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
303 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
304 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
305 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
308 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
309 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
310 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
313 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
314 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
315 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
318 dnl Check for libdl, but do not add it to LIBS as only gdbserver
319 dnl needs it (and gdbreplay doesn't).
321 AC_CHECK_LIB(dl, dlopen)
327 if test "$srv_linux_thread_db" = "yes"; then
328 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
330 AC_MSG_CHECKING(for the dynamic export flag)
331 old_LDFLAGS="$LDFLAGS"
332 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
334 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
335 LDFLAGS="$LDFLAGS $RDYNAMIC"
337 [found="-Wl,--dynamic-list"
338 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
339 [RDYNAMIC="-rdynamic"
340 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
346 LDFLAGS="$old_LDFLAGS"
347 AC_MSG_RESULT($found)
349 srv_libs="-lthread_db"
352 srv_thread_depfiles="thread-db.o proc-service.o"
353 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
354 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
355 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
356 [gdbsrv_cv_have_td_version=yes],
357 [gdbsrv_cv_have_td_version=no])])
358 if test $gdbsrv_cv_have_td_version = yes; then
359 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
363 AC_ARG_WITH(libthread-db,
364 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
365 [srv_libthread_db_path="${withval}"
366 srv_libs="$srv_libthread_db_path"
369 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
370 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
373 if test "$srv_xmlfiles" != ""; then
374 srv_xmlbuiltin="xml-builtin.o"
375 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
377 tmp_xmlfiles=$srv_xmlfiles
379 for f in $tmp_xmlfiles; do
380 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
384 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
385 GDBSERVER_LIBS="$srv_libs"
387 dnl Check whether the target supports __sync_*_compare_and_swap.
388 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
389 gdbsrv_cv_have_sync_builtins, [
390 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
391 gdbsrv_cv_have_sync_builtins=yes,
392 gdbsrv_cv_have_sync_builtins=no)])
393 if test $gdbsrv_cv_have_sync_builtins = yes; then
394 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
395 [Define to 1 if the target supports __sync_*_compare_and_swap])
398 dnl Check for -fvisibility=hidden support in the compiler.
399 saved_cflags="$CFLAGS"
400 CFLAGS="$CFLAGS -fvisibility=hidden"
401 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
402 [gdbsrv_cv_have_visibility_hidden=yes],
403 [gdbsrv_cv_have_visibility_hidden=no])
404 CFLAGS="$saved_cflags"
406 dnl Check if we can disable the virtual address space randomization.
407 dnl The functionality of setarch -R.
408 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
409 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
410 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
411 # define ADDR_NO_RANDOMIZE 0x0040000
413 /* Test the flag could be set and stays set. */
414 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
415 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
417 AC_RUN_IFELSE([PERSONALITY_TEST],
418 [gdbsrv_cv_have_personality=true],
419 [gdbsrv_cv_have_personality=false],
420 [AC_LINK_IFELSE([PERSONALITY_TEST],
421 [gdbsrv_cv_have_personality=true],
422 [gdbsrv_cv_have_personality=false])])
423 if $gdbsrv_cv_have_personality
425 AC_DEFINE([HAVE_PERSONALITY], 1,
426 [Define if you support the personality syscall.])
433 # check whether to enable the inprocess agent
434 if test "$ipa_obj" != "" \
435 -a "$gdbsrv_cv_have_sync_builtins" = yes \
436 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
442 AC_ARG_ENABLE(inprocess-agent,
443 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
444 [case "$enableval" in
445 yes) want_ipa=true ;;
446 no) want_ipa=false ;;
447 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
449 [want_ipa=$have_ipa])
453 IPA_DEPFILES="$ipa_obj"
454 extra_libraries="$extra_libraries libinproctrace.so"
456 AC_MSG_ERROR([inprocess agent not supported for this target])
460 AC_SUBST(GDBSERVER_DEPFILES)
461 AC_SUBST(GDBSERVER_LIBS)
462 AC_SUBST(srv_xmlbuiltin)
463 AC_SUBST(srv_xmlfiles)
464 AC_SUBST(IPA_DEPFILES)
465 AC_SUBST(extra_libraries)
467 GNULIB=build-gnulib-gdbserver/import
470 if test x"$STDINT_H" != x; then
471 GNULIB_STDINT_H=$GNULIB/$STDINT_H
473 AC_SUBST(GNULIB_STDINT_H)
476 [case x$CONFIG_HEADERS in