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)
25 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 sys/un.h)
46 AC_CHECK_FUNCS(pread pwrite pread64 readlink)
47 AC_REPLACE_FUNCS(memmem vasprintf vsnprintf)
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 $have_errno = no; then
159 #endif], [extern int errno; static int x; x = errno;],
160 [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
164 AC_CHECK_DECLS([strerror, perror, memmem, vasprintf, vsnprintf])
166 AC_CHECK_TYPES(socklen_t, [], [],
167 [#include <sys/types.h>
168 #include <sys/socket.h>
171 ACX_PKGVERSION([GDB])
172 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
173 AC_DEFINE_UNQUOTED([PKGVERSION], ["$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"
215 elif test "${srv_lynxos}" = "yes"; then
216 LIBS="$LIBS -lnetinet"
219 if test "${srv_mingw}" = "yes"; then
220 AC_DEFINE(USE_WIN32API, 1,
221 [Define if we should use the Windows API, instead of the
222 POSIX API. On Windows, we use the Windows API when
223 building for MinGW, but the POSIX API when building
227 if test "${srv_linux_usrregs}" = "yes"; then
228 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
229 [Define if the target supports PTRACE_PEEKUSR for register ]
233 if test "${srv_linux_regsets}" = "yes"; then
234 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
235 [Define if the target supports register sets.])
237 AC_MSG_CHECKING(for PTRACE_GETREGS)
238 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
239 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
241 [gdbsrv_cv_have_ptrace_getregs=yes],
242 [gdbsrv_cv_have_ptrace_getregs=no])])
243 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
244 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
245 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
246 [Define if the target supports PTRACE_GETREGS for register ]
250 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
251 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
252 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
253 [PTRACE_GETFPXREGS;],
254 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
255 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
256 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
257 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
258 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
259 [Define if the target supports PTRACE_GETFPXREGS for extended ]
264 if test "$ac_cv_header_sys_procfs_h" = yes; then
265 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
266 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
267 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
268 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
271 dnl Check for libdl, but do not add it to LIBS as only gdbserver
272 dnl needs it (and gdbreplay doesn't).
274 AC_CHECK_LIB(dl, dlopen)
281 if test "$srv_linux_thread_db" = "yes"; then
282 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
284 AC_MSG_CHECKING(for the dynamic export flag)
285 old_LDFLAGS="$LDFLAGS"
286 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
288 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
289 LDFLAGS="$LDFLAGS $RDYNAMIC"
291 [found="-Wl,--dynamic-list"
292 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
293 [RDYNAMIC="-rdynamic"
294 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
300 LDFLAGS="$old_LDFLAGS"
301 AC_MSG_RESULT($found)
303 srv_libs="-lthread_db"
306 srv_thread_depfiles="thread-db.o proc-service.o"
307 USE_THREAD_DB="-DUSE_THREAD_DB"
308 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
309 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
310 [gdbsrv_cv_have_td_version=yes],
311 [gdbsrv_cv_have_td_version=no])])
312 if test $gdbsrv_cv_have_td_version = yes; then
313 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
317 AC_ARG_WITH(libthread-db,
318 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
319 [srv_libthread_db_path="${withval}"
320 srv_libs="$srv_libthread_db_path"
323 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
324 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
327 if test "$srv_xmlfiles" != ""; then
328 srv_xmlbuiltin="xml-builtin.o"
329 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
331 tmp_xmlfiles=$srv_xmlfiles
333 for f in $tmp_xmlfiles; do
334 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
338 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
339 GDBSERVER_LIBS="$srv_libs"
341 dnl Check whether the target supports __sync_*_compare_and_swap.
342 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
343 gdbsrv_cv_have_sync_builtins, [
344 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
345 gdbsrv_cv_have_sync_builtins=yes,
346 gdbsrv_cv_have_sync_builtins=no)])
347 if test $gdbsrv_cv_have_sync_builtins = yes; then
348 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
349 [Define to 1 if the target supports __sync_*_compare_and_swap])
352 dnl Check for -fvisibility=hidden support in the compiler.
353 saved_cflags="$CFLAGS"
354 CFLAGS="$CFLAGS -fvisibility=hidden"
355 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
356 [gdbsrv_cv_have_visibility_hidden=yes],
357 [gdbsrv_cv_have_visibility_hidden=no])
358 CFLAGS="$saved_cflags"
360 dnl Check if we can disable the virtual address space randomization.
361 dnl The functionality of setarch -R.
362 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
363 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
364 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
365 # define ADDR_NO_RANDOMIZE 0x0040000
367 /* Test the flag could be set and stays set. */
368 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
369 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
371 AC_RUN_IFELSE([PERSONALITY_TEST],
372 [gdbsrv_cv_have_personality=true],
373 [gdbsrv_cv_have_personality=false],
374 [AC_LINK_IFELSE([PERSONALITY_TEST],
375 [gdbsrv_cv_have_personality=true],
376 [gdbsrv_cv_have_personality=false])])
377 if $gdbsrv_cv_have_personality
379 AC_DEFINE([HAVE_PERSONALITY], 1,
380 [Define if you support the personality syscall.])
387 # check whether to enable the inprocess agent
388 if test "$ipa_obj" != "" \
389 -a "$gdbsrv_cv_have_sync_builtins" = yes \
390 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
396 AC_ARG_ENABLE(inprocess-agent,
397 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
398 [case "$enableval" in
399 yes) want_ipa=true ;;
400 no) want_ipa=false ;;
401 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
403 [want_ipa=$have_ipa])
407 IPA_DEPFILES="$ipa_obj"
408 extra_libraries="$extra_libraries libinproctrace.so"
410 AC_MSG_ERROR([inprocess agent not supported for this target])
414 AC_SUBST(GDBSERVER_DEPFILES)
415 AC_SUBST(GDBSERVER_LIBS)
416 AC_SUBST(USE_THREAD_DB)
417 AC_SUBST(srv_xmlbuiltin)
418 AC_SUBST(srv_xmlfiles)
419 AC_SUBST(IPA_DEPFILES)
420 AC_SUBST(extra_libraries)
423 [case x$CONFIG_HEADERS in