1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000-2013 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 # Dependency checking.
45 ZW_PROG_COMPILER_DEPENDENCIES([CC])
47 # Check for the 'make' the user wants to use.
48 AC_CHECK_PROGS(MAKE, make)
50 case "`$MAKE --version 2>&1 | sed 1q`" in
55 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
58 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
59 # to find the the source subdir to be configured directly under
60 # gdbserver/. We need to build gnulib under some other directory not
61 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
62 # build it in the same directory, when building in the source dir.
63 ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"])
65 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
66 proc_service.h sys/procfs.h thread_db.h linux/elf.h dnl
68 errno.h fcntl.h signal.h sys/file.h malloc.h dnl
69 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
70 netinet/tcp.h arpa/inet.h sys/wait.h wait.h sys/un.h dnl
72 AC_CHECK_FUNCS(pread pwrite pread64 readlink)
73 AC_REPLACE_FUNCS(vasprintf vsnprintf)
79 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
80 Equivalent to --with-ust-include=PATH/include
81 plus --with-ust-lib=PATH/lib])
82 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
83 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
95 ustlibs="-L$with_ust/lib -lust"
96 ustinc="-I$with_ust/include "
99 if test "x$with_ust_include" != x; then
100 ustinc="-I$with_ust_include "
102 if test "x$with_ust_lib" != x; then
103 ustlibs="-L$with_ust_lib -lust"
106 if test "x$with_ust" != "xno"; then
107 saved_CFLAGS="$CFLAGS"
108 CFLAGS="$CFLAGS $ustinc"
109 AC_MSG_CHECKING([for ust])
111 #define CONFIG_UST_GDB_INTEGRATION
114 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
115 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
116 CFLAGS="$saved_CFLAGS"
119 # Flags needed for UST
123 AC_ARG_ENABLE(werror,
124 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
125 [case "${enableval}" in
126 yes | y) ERROR_ON_WARNING="yes" ;;
127 no | n) ERROR_ON_WARNING="no" ;;
128 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
131 # Enable -Werror by default when using gcc
132 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
137 if test "${ERROR_ON_WARNING}" = yes ; then
138 WERROR_CFLAGS="-Werror"
141 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
142 -Wformat-nonliteral -Wno-char-subscripts -Wempty-body"
145 if test "x$GCC" = xyes
147 AC_MSG_CHECKING(compiler warning flags)
148 # Separate out the -Werror flag as some files just cannot be
149 # compiled with it enabled.
150 for w in ${build_warnings}; do
152 -Werr*) WERROR_CFLAGS=-Werror ;;
153 *) # Check that GCC accepts it
154 saved_CFLAGS="$CFLAGS"
156 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
157 CFLAGS="$saved_CFLAGS"
160 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
162 AC_SUBST(WARN_CFLAGS)
163 AC_SUBST(WERROR_CFLAGS)
165 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
166 dnl debugging messages. It lives in -ldl which is handled below so we don't
167 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
171 AC_CHECK_FUNCS(dladdr)
175 AC_MSG_CHECKING(for errno)
179 #endif], [static int x; x = errno;],
180 [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) have_errno=yes])
181 if test $have_errno = no; then
185 #endif], [extern int errno; static int x; x = errno;],
186 [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
190 AC_CHECK_DECLS([strerror, strstr, perror, vasprintf, vsnprintf])
192 AC_CHECK_TYPES(socklen_t, [], [],
193 [#include <sys/types.h>
194 #include <sys/socket.h>
197 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
201 ACX_PKGVERSION([GDB])
202 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
203 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
204 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
206 # Check for various supplementary target information (beyond the
207 # triplet) which might affect the choices in configure.srv.
212 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
213 [save_CPPFLAGS="$CPPFLAGS"
214 CPPFLAGS="$CPPFLAGS $CFLAGS"
215 AC_EGREP_CPP([got it], [
219 ], [gdb_cv_i386_is_x86_64=yes],
220 [gdb_cv_i386_is_x86_64=no])
221 CPPFLAGS="$save_CPPFLAGS"])
224 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
225 [save_CPPFLAGS="$CPPFLAGS"
226 CPPFLAGS="$CPPFLAGS $CFLAGS"
227 AC_EGREP_CPP([got it], [
231 ], [gdb_cv_m68k_is_coldfire=yes],
232 [gdb_cv_m68k_is_coldfire=no])
233 CPPFLAGS="$save_CPPFLAGS"])
237 . ${srcdir}/configure.srv
239 if test "${srv_mingwce}" = "yes"; then
241 elif test "${srv_mingw}" = "yes"; then
242 LIBS="$LIBS -lws2_32"
243 elif test "${srv_qnx}" = "yes"; then
244 LIBS="$LIBS -lsocket"
245 elif test "${srv_lynxos}" = "yes"; then
246 LIBS="$LIBS -lnetinet"
249 if test "${srv_mingw}" = "yes"; then
250 AC_DEFINE(USE_WIN32API, 1,
251 [Define if we should use the Windows API, instead of the
252 POSIX API. On Windows, we use the Windows API when
253 building for MinGW, but the POSIX API when building
257 if test "${srv_linux_usrregs}" = "yes"; then
258 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
259 [Define if the target supports PTRACE_PEEKUSR for register ]
263 if test "${srv_linux_regsets}" = "yes"; then
264 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
265 [Define if the target supports register sets.])
267 AC_MSG_CHECKING(for PTRACE_GETREGS)
268 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
269 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
271 [gdbsrv_cv_have_ptrace_getregs=yes],
272 [gdbsrv_cv_have_ptrace_getregs=no])])
273 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
274 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
275 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
276 [Define if the target supports PTRACE_GETREGS for register ]
280 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
281 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
282 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
283 [PTRACE_GETFPXREGS;],
284 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
285 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
286 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
287 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
288 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
289 [Define if the target supports PTRACE_GETFPXREGS for extended ]
294 if test "$ac_cv_header_sys_procfs_h" = yes; then
295 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
296 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
297 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
298 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
301 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
302 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
303 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
306 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
307 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
308 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
311 dnl Check for libdl, but do not add it to LIBS as only gdbserver
312 dnl needs it (and gdbreplay doesn't).
314 AC_CHECK_LIB(dl, dlopen)
321 if test "$srv_linux_thread_db" = "yes"; then
322 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
324 AC_MSG_CHECKING(for the dynamic export flag)
325 old_LDFLAGS="$LDFLAGS"
326 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
328 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
329 LDFLAGS="$LDFLAGS $RDYNAMIC"
331 [found="-Wl,--dynamic-list"
332 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
333 [RDYNAMIC="-rdynamic"
334 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
340 LDFLAGS="$old_LDFLAGS"
341 AC_MSG_RESULT($found)
343 srv_libs="-lthread_db"
346 srv_thread_depfiles="thread-db.o proc-service.o"
347 USE_THREAD_DB="-DUSE_THREAD_DB"
348 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
349 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
350 [gdbsrv_cv_have_td_version=yes],
351 [gdbsrv_cv_have_td_version=no])])
352 if test $gdbsrv_cv_have_td_version = yes; then
353 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
357 AC_ARG_WITH(libthread-db,
358 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
359 [srv_libthread_db_path="${withval}"
360 srv_libs="$srv_libthread_db_path"
363 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
364 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
367 if test "$srv_xmlfiles" != ""; then
368 srv_xmlbuiltin="xml-builtin.o"
369 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
371 tmp_xmlfiles=$srv_xmlfiles
373 for f in $tmp_xmlfiles; do
374 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
378 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
379 GDBSERVER_LIBS="$srv_libs"
381 dnl Check whether the target supports __sync_*_compare_and_swap.
382 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
383 gdbsrv_cv_have_sync_builtins, [
384 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
385 gdbsrv_cv_have_sync_builtins=yes,
386 gdbsrv_cv_have_sync_builtins=no)])
387 if test $gdbsrv_cv_have_sync_builtins = yes; then
388 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
389 [Define to 1 if the target supports __sync_*_compare_and_swap])
392 dnl Check for -fvisibility=hidden support in the compiler.
393 saved_cflags="$CFLAGS"
394 CFLAGS="$CFLAGS -fvisibility=hidden"
395 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
396 [gdbsrv_cv_have_visibility_hidden=yes],
397 [gdbsrv_cv_have_visibility_hidden=no])
398 CFLAGS="$saved_cflags"
400 dnl Check if we can disable the virtual address space randomization.
401 dnl The functionality of setarch -R.
402 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
403 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
404 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
405 # define ADDR_NO_RANDOMIZE 0x0040000
407 /* Test the flag could be set and stays set. */
408 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
409 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
411 AC_RUN_IFELSE([PERSONALITY_TEST],
412 [gdbsrv_cv_have_personality=true],
413 [gdbsrv_cv_have_personality=false],
414 [AC_LINK_IFELSE([PERSONALITY_TEST],
415 [gdbsrv_cv_have_personality=true],
416 [gdbsrv_cv_have_personality=false])])
417 if $gdbsrv_cv_have_personality
419 AC_DEFINE([HAVE_PERSONALITY], 1,
420 [Define if you support the personality syscall.])
427 # check whether to enable the inprocess agent
428 if test "$ipa_obj" != "" \
429 -a "$gdbsrv_cv_have_sync_builtins" = yes \
430 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
436 AC_ARG_ENABLE(inprocess-agent,
437 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
438 [case "$enableval" in
439 yes) want_ipa=true ;;
440 no) want_ipa=false ;;
441 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
443 [want_ipa=$have_ipa])
447 IPA_DEPFILES="$ipa_obj"
448 extra_libraries="$extra_libraries libinproctrace.so"
450 AC_MSG_ERROR([inprocess agent not supported for this target])
454 AC_SUBST(GDBSERVER_DEPFILES)
455 AC_SUBST(GDBSERVER_LIBS)
456 AC_SUBST(USE_THREAD_DB)
457 AC_SUBST(srv_xmlbuiltin)
458 AC_SUBST(srv_xmlfiles)
459 AC_SUBST(IPA_DEPFILES)
460 AC_SUBST(extra_libraries)
462 GNULIB=build-gnulib-gdbserver/import
465 if test x"$STDINT_H" != x; then
466 GNULIB_STDINT_H=$GNULIB/$STDINT_H
468 AC_SUBST(GNULIB_STDINT_H)
471 [case x$CONFIG_HEADERS in