1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
3 dnl 2010 Free Software Foundation, Inc.
5 dnl This file is part of GDB.
7 dnl This program is free software; you can redistribute it and/or modify
8 dnl it under the terms of the GNU General Public License as published by
9 dnl the Free Software Foundation; either version 3 of the License, or
10 dnl (at your option) any later version.
12 dnl This program is distributed in the hope that it will be useful,
13 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
14 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 dnl GNU General Public License for more details.
17 dnl You should have received a copy of the GNU General Public License
18 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
20 dnl Process this file with autoconf to produce a configure script.
25 AC_CONFIG_HEADER(config.h:config.in)
26 AC_CONFIG_LIBOBJ_DIR(../gnulib)
40 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
41 proc_service.h sys/procfs.h thread_db.h linux/elf.h dnl
43 errno.h fcntl.h signal.h sys/file.h malloc.h dnl
44 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
45 netinet/tcp.h arpa/inet.h sys/wait.h)
46 AC_CHECK_FUNCS(pread pwrite pread64)
47 AC_REPLACE_FUNCS(memmem)
53 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
54 Equivalent to --with-ust-include=PATH/include
55 plus --with-ust-lib=PATH/lib])
56 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
57 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
69 ustlibs="-L$with_ust/lib -lust"
70 ustinc="-I$with_ust/include "
73 if test "x$with_ust_include" != x; then
74 ustinc="-I$with_ust_include "
76 if test "x$with_ust_lib" != x; then
77 ustlibs="-L$with_ust_lib -lust"
80 if test "x$with_ust" != "xno"; then
81 saved_CFLAGS="$CFLAGS"
82 CFLAGS="$CFLAGS $ustinc"
83 AC_MSG_CHECKING([for ust])
85 #define CONFIG_UST_GDB_INTEGRATION
88 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
89 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
90 CFLAGS="$saved_CFLAGS"
93 # Flags needed for UST
98 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
99 [case "${enableval}" in
100 yes | y) ERROR_ON_WARNING="yes" ;;
101 no | n) ERROR_ON_WARNING="no" ;;
102 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
105 # Enable -Werror by default when using gcc
106 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
111 if test "${ERROR_ON_WARNING}" = yes ; then
112 WERROR_CFLAGS="-Werror"
115 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
116 -Wformat-nonliteral -Wno-char-subscripts"
119 if test "x$GCC" = xyes
121 AC_MSG_CHECKING(compiler warning flags)
122 # Separate out the -Werror flag as some files just cannot be
123 # compiled with it enabled.
124 for w in ${build_warnings}; do
126 -Werr*) WERROR_CFLAGS=-Werror ;;
127 *) # Check that GCC accepts it
128 saved_CFLAGS="$CFLAGS"
130 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
131 CFLAGS="$saved_CFLAGS"
134 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
136 AC_SUBST(WARN_CFLAGS)
137 AC_SUBST(WERROR_CFLAGS)
139 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
140 dnl debugging messages. It lives in -ldl which is handled below so we don't
141 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
145 AC_CHECK_FUNCS(dladdr)
149 AC_MSG_CHECKING(for errno)
153 #endif], [static int x; x = errno;],
154 [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) have_errno=yes])
155 if test $have_errno = no; then
159 #endif], [extern int errno; static int x; x = errno;],
160 [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
164 AC_CHECK_DECLS([strerror, perror, memmem])
166 AC_CHECK_TYPES(socklen_t, [], [],
167 [#include <sys/types.h>
168 #include <sys/socket.h>
171 ACX_PKGVERSION([GDB])
172 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
173 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
174 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
176 # Check for various supplementary target information (beyond the
177 # triplet) which might affect the choices in configure.srv.
182 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
183 [save_CPPFLAGS="$CPPFLAGS"
184 CPPFLAGS="$CPPFLAGS $CFLAGS"
185 AC_EGREP_CPP([got it], [
189 ], [gdb_cv_i386_is_x86_64=yes],
190 [gdb_cv_i386_is_x86_64=no])
191 CPPFLAGS="$save_CPPFLAGS"])
194 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
195 [save_CPPFLAGS="$CPPFLAGS"
196 CPPFLAGS="$CPPFLAGS $CFLAGS"
197 AC_EGREP_CPP([got it], [
201 ], [gdb_cv_m68k_is_coldfire=yes],
202 [gdb_cv_m68k_is_coldfire=no])
203 CPPFLAGS="$save_CPPFLAGS"])
207 . ${srcdir}/configure.srv
209 if test "${srv_mingwce}" = "yes"; then
211 elif test "${srv_mingw}" = "yes"; then
212 LIBS="$LIBS -lws2_32"
213 elif test "${srv_qnx}" = "yes"; then
214 LIBS="$LIBS -lsocket"
217 if test "${srv_mingw}" = "yes"; then
218 AC_DEFINE(USE_WIN32API, 1,
219 [Define if we should use the Windows API, instead of the
220 POSIX API. On Windows, we use the Windows API when
221 building for MinGW, but the POSIX API when building
225 if test "${srv_linux_usrregs}" = "yes"; then
226 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
227 [Define if the target supports PTRACE_PEEKUSR for register ]
231 if test "${srv_linux_regsets}" = "yes"; then
232 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
233 [Define if the target supports register sets.])
235 AC_MSG_CHECKING(for PTRACE_GETREGS)
236 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
237 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
239 [gdbsrv_cv_have_ptrace_getregs=yes],
240 [gdbsrv_cv_have_ptrace_getregs=no])])
241 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
242 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
243 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
244 [Define if the target supports PTRACE_GETREGS for register ]
248 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
249 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
250 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
251 [PTRACE_GETFPXREGS;],
252 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
253 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
254 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
255 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
256 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
257 [Define if the target supports PTRACE_GETFPXREGS for extended ]
262 if test "$ac_cv_header_sys_procfs_h" = yes; then
263 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
264 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
265 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
266 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
269 dnl Check for libdl, but do not add it to LIBS as only gdbserver
270 dnl needs it (and gdbreplay doesn't).
272 AC_CHECK_LIB(dl, dlopen)
279 if test "$srv_linux_thread_db" = "yes"; then
280 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
282 AC_MSG_CHECKING(for the dynamic export flag)
283 old_LDFLAGS="$LDFLAGS"
284 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
286 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
287 LDFLAGS="$LDFLAGS $RDYNAMIC"
289 [found="-Wl,--dynamic-list"
290 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
291 [RDYNAMIC="-rdynamic"
292 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
298 LDFLAGS="$old_LDFLAGS"
299 AC_MSG_RESULT($found)
301 srv_libs="-lthread_db"
304 srv_thread_depfiles="thread-db.o proc-service.o"
305 USE_THREAD_DB="-DUSE_THREAD_DB"
306 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
307 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
308 [gdbsrv_cv_have_td_version=yes],
309 [gdbsrv_cv_have_td_version=no])])
310 if test $gdbsrv_cv_have_td_version = yes; then
311 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
315 AC_ARG_WITH(libthread-db,
316 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
317 [srv_libthread_db_path="${withval}"
318 srv_libs="$srv_libthread_db_path"
321 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
322 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
325 if test "$srv_xmlfiles" != ""; then
326 srv_xmlbuiltin="xml-builtin.o"
327 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
329 tmp_xmlfiles=$srv_xmlfiles
331 for f in $tmp_xmlfiles; do
332 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
336 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
337 GDBSERVER_LIBS="$srv_libs"
339 dnl Check whether the target supports __sync_*_compare_and_swap.
340 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
341 gdbsrv_cv_have_sync_builtins, [
342 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
343 gdbsrv_cv_have_sync_builtins=yes,
344 gdbsrv_cv_have_sync_builtins=no)])
345 if test $gdbsrv_cv_have_sync_builtins = yes; then
346 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
347 [Define to 1 if the target supports __sync_*_compare_and_swap])
350 dnl Check for -fvisibility=hidden support in the compiler.
351 saved_cflags="$CFLAGS"
352 CFLAGS="$CFLAGS -fvisibility=hidden"
353 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
354 [gdbsrv_cv_have_visibility_hidden=yes],
355 [gdbsrv_cv_have_visibility_hidden=no])
356 CFLAGS="$saved_cflags"
360 # Rather than allowing to build a broken IPA, we simply disable it if
361 # we don't find a compiler supporting all the features we need.
362 if test "$ipa_obj" != "" \
363 -a "$gdbsrv_cv_have_sync_builtins" = yes \
364 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
365 IPA_DEPFILES="$ipa_obj"
366 extra_libraries="libinproctrace.so"
369 AC_SUBST(GDBSERVER_DEPFILES)
370 AC_SUBST(GDBSERVER_LIBS)
371 AC_SUBST(USE_THREAD_DB)
372 AC_SUBST(srv_xmlbuiltin)
373 AC_SUBST(srv_xmlfiles)
374 AC_SUBST(IPA_DEPFILES)
375 AC_SUBST(extra_libraries)
378 [case x$CONFIG_HEADERS in