1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000-2015 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)
42 # Set the 'development' global.
43 . $srcdir/../../bfd/development.sh
45 # Enable -lmcheck by default (it provides cheap-enough memory
46 # mangling), but turn it off for releases.
52 GDB_AC_LIBMCHECK(${libmcheck_default})
54 ACX_NONCANONICAL_TARGET
57 # Dependency checking.
59 ZW_PROG_COMPILER_DEPENDENCIES([CC])
61 # Check for the 'make' the user wants to use.
62 AC_CHECK_PROGS(MAKE, make)
64 case "`$MAKE --version 2>&1 | sed 1q`" in
69 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
72 gnulib_extra_configure_args=
73 # If large-file support is disabled, make sure gnulib does the same.
74 if test "$enable_largefile" = no; then
75 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
78 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
79 # to find the the source subdir to be configured directly under
80 # gdbserver/. We need to build gnulib under some other directory not
81 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
82 # build it in the same directory, when building in the source dir.
83 ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"],
84 ["$gnulib_extra_configure_args"])
86 ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
88 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
89 proc_service.h sys/procfs.h linux/elf.h dnl
90 fcntl.h signal.h sys/file.h dnl
91 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
92 netinet/tcp.h arpa/inet.h)
93 AC_CHECK_FUNCS(getauxval pread pwrite pread64)
101 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
102 Equivalent to --with-ust-include=PATH/include
103 plus --with-ust-lib=PATH/lib])
104 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
105 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
117 ustlibs="-L$with_ust/lib -lust"
118 ustinc="-I$with_ust/include "
121 if test "x$with_ust_include" != x; then
122 ustinc="-I$with_ust_include "
124 if test "x$with_ust_lib" != x; then
125 ustlibs="-L$with_ust_lib -lust"
128 if test "x$with_ust" != "xno"; then
129 saved_CFLAGS="$CFLAGS"
130 CFLAGS="$CFLAGS $ustinc"
131 AC_MSG_CHECKING([for ust])
133 #define CONFIG_UST_GDB_INTEGRATION
136 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
137 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
138 CFLAGS="$saved_CFLAGS"
141 # Flags needed for UST
145 AC_ARG_ENABLE(werror,
146 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
147 [case "${enableval}" in
148 yes | y) ERROR_ON_WARNING="yes" ;;
149 no | n) ERROR_ON_WARNING="no" ;;
150 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
153 # Enable -Werror by default when using gcc. Turn it off for releases.
154 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
159 if test "${ERROR_ON_WARNING}" = yes ; then
160 WERROR_CFLAGS="-Werror"
163 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
164 -Wformat-nonliteral -Wno-char-subscripts -Wempty-body"
167 if test "x$GCC" = xyes
169 AC_MSG_CHECKING(compiler warning flags)
170 # Separate out the -Werror flag as some files just cannot be
171 # compiled with it enabled.
172 for w in ${build_warnings}; do
174 -Werr*) WERROR_CFLAGS=-Werror ;;
175 *) # Check that GCC accepts it
176 saved_CFLAGS="$CFLAGS"
178 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
179 CFLAGS="$saved_CFLAGS"
182 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
184 AC_SUBST(WARN_CFLAGS)
185 AC_SUBST(WERROR_CFLAGS)
187 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
188 dnl debugging messages. It lives in -ldl which is handled below so we don't
189 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
193 AC_CHECK_FUNCS(dladdr)
198 AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf])
200 AC_CHECK_TYPES(socklen_t, [], [],
201 [#include <sys/types.h>
202 #include <sys/socket.h>
205 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
209 ACX_PKGVERSION([GDB])
210 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
211 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
212 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
214 # Check for various supplementary target information (beyond the
215 # triplet) which might affect the choices in configure.srv.
220 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
221 [save_CPPFLAGS="$CPPFLAGS"
222 CPPFLAGS="$CPPFLAGS $CFLAGS"
223 AC_EGREP_CPP([got it], [
227 ], [gdb_cv_i386_is_x86_64=yes],
228 [gdb_cv_i386_is_x86_64=no])
229 CPPFLAGS="$save_CPPFLAGS"])
232 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
233 [save_CPPFLAGS="$CPPFLAGS"
234 CPPFLAGS="$CPPFLAGS $CFLAGS"
235 AC_EGREP_CPP([got it], [
239 ], [gdb_cv_m68k_is_coldfire=yes],
240 [gdb_cv_m68k_is_coldfire=no])
241 CPPFLAGS="$save_CPPFLAGS"])
245 . ${srcdir}/configure.srv
247 # Add in the common host objects.
248 . ${srcdir}/../common/common.host
249 srv_host_obs="$common_host_obs"
251 if test "${srv_mingwce}" = "yes"; then
253 elif test "${srv_mingw}" = "yes"; then
254 LIBS="$LIBS -lws2_32"
255 elif test "${srv_qnx}" = "yes"; then
256 LIBS="$LIBS -lsocket"
257 elif test "${srv_lynxos}" = "yes"; then
258 LIBS="$LIBS -lnetinet"
261 if test "${srv_mingw}" = "yes"; then
262 AC_DEFINE(USE_WIN32API, 1,
263 [Define if we should use the Windows API, instead of the
264 POSIX API. On Windows, we use the Windows API when
265 building for MinGW, but the POSIX API when building
269 if test "${srv_linux_usrregs}" = "yes"; then
270 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
271 [Define if the target supports PTRACE_PEEKUSR for register ]
275 if test "${srv_linux_regsets}" = "yes"; then
276 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
277 [Define if the target supports register sets.])
279 AC_MSG_CHECKING(for PTRACE_GETREGS)
280 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
281 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
283 [gdbsrv_cv_have_ptrace_getregs=yes],
284 [gdbsrv_cv_have_ptrace_getregs=no])])
285 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
286 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
287 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
288 [Define if the target supports PTRACE_GETREGS for register ]
292 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
293 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
294 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
295 [PTRACE_GETFPXREGS;],
296 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
297 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
298 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
299 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
300 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
301 [Define if the target supports PTRACE_GETFPXREGS for extended ]
306 if test "${srv_linux_btrace}" = "yes"; then
307 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
308 [Define if the target supports branch tracing.])
311 if test "$ac_cv_header_sys_procfs_h" = yes; then
312 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
313 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
314 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
315 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
318 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
319 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
320 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
323 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
324 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
325 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
328 dnl Check for libdl, but do not add it to LIBS as only gdbserver
329 dnl needs it (and gdbreplay doesn't).
331 AC_CHECK_LIB(dl, dlopen)
337 if test "$srv_linux_thread_db" = "yes"; then
338 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
340 AC_MSG_CHECKING(for the dynamic export flag)
341 old_LDFLAGS="$LDFLAGS"
342 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
344 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
345 LDFLAGS="$LDFLAGS $RDYNAMIC"
347 [found="-Wl,--dynamic-list"
348 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
349 [RDYNAMIC="-rdynamic"
350 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
356 LDFLAGS="$old_LDFLAGS"
357 AC_MSG_RESULT($found)
359 srv_libs="-lthread_db"
362 srv_thread_depfiles="thread-db.o proc-service.o"
363 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
364 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
365 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
366 [gdbsrv_cv_have_td_version=yes],
367 [gdbsrv_cv_have_td_version=no])])
368 if test $gdbsrv_cv_have_td_version = yes; then
369 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
373 AC_ARG_WITH(libthread-db,
374 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
375 [srv_libthread_db_path="${withval}"
376 srv_libs="$srv_libthread_db_path"
379 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
380 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
383 if test "$srv_xmlfiles" != ""; then
384 srv_xmlbuiltin="xml-builtin.o"
385 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
387 tmp_xmlfiles=$srv_xmlfiles
389 for f in $tmp_xmlfiles; do
390 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
394 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs"
395 GDBSERVER_LIBS="$srv_libs"
397 dnl Check whether the target supports __sync_*_compare_and_swap.
398 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
399 gdbsrv_cv_have_sync_builtins, [
400 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
401 gdbsrv_cv_have_sync_builtins=yes,
402 gdbsrv_cv_have_sync_builtins=no)])
403 if test $gdbsrv_cv_have_sync_builtins = yes; then
404 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
405 [Define to 1 if the target supports __sync_*_compare_and_swap])
408 dnl Check for -fvisibility=hidden support in the compiler.
409 saved_cflags="$CFLAGS"
410 CFLAGS="$CFLAGS -fvisibility=hidden"
411 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
412 [gdbsrv_cv_have_visibility_hidden=yes],
413 [gdbsrv_cv_have_visibility_hidden=no])
414 CFLAGS="$saved_cflags"
416 dnl Check if we can disable the virtual address space randomization.
417 dnl The functionality of setarch -R.
418 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
419 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
420 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
421 # define ADDR_NO_RANDOMIZE 0x0040000
423 /* Test the flag could be set and stays set. */
424 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
425 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
427 AC_RUN_IFELSE([PERSONALITY_TEST],
428 [gdbsrv_cv_have_personality=true],
429 [gdbsrv_cv_have_personality=false],
430 [AC_LINK_IFELSE([PERSONALITY_TEST],
431 [gdbsrv_cv_have_personality=true],
432 [gdbsrv_cv_have_personality=false])])
433 if $gdbsrv_cv_have_personality
435 AC_DEFINE([HAVE_PERSONALITY], 1,
436 [Define if you support the personality syscall.])
443 # check whether to enable the inprocess agent
444 if test "$ipa_obj" != "" \
445 -a "$gdbsrv_cv_have_sync_builtins" = yes \
446 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
452 AC_ARG_ENABLE(inprocess-agent,
453 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
454 [case "$enableval" in
455 yes) want_ipa=true ;;
456 no) want_ipa=false ;;
457 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
459 [want_ipa=$have_ipa])
463 IPA_DEPFILES="$ipa_obj"
464 extra_libraries="$extra_libraries libinproctrace.so"
466 AC_MSG_ERROR([inprocess agent not supported for this target])
470 AC_SUBST(GDBSERVER_DEPFILES)
471 AC_SUBST(GDBSERVER_LIBS)
472 AC_SUBST(srv_xmlbuiltin)
473 AC_SUBST(srv_xmlfiles)
474 AC_SUBST(IPA_DEPFILES)
475 AC_SUBST(extra_libraries)
477 GNULIB=build-gnulib-gdbserver/import
480 if test x"$STDINT_H" != x; then
481 GNULIB_STDINT_H=$GNULIB/$STDINT_H
483 AC_SUBST(GNULIB_STDINT_H)
486 [case x$CONFIG_HEADERS in