1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000-2020 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.
22 AC_CONFIG_HEADERS(config.h:config.in, [echo > stamp-h])
40 # We require a C++11 compiler. Check if one is available, and if
41 # necessary, set CXX_DIALECT to some -std=xxx switch.
42 AX_CXX_COMPILE_STDCXX(11, , mandatory)
47 # This is set by GDB_AC_COMMON.
48 AC_SUBST(WIN32APILIBS)
52 ACX_NONCANONICAL_TARGET
55 # Dependency checking.
58 dnl Set up for gettext.
59 ZW_GNU_GETTEXT_SISTER_DIR
61 # Create sub-directories for objects and dependencies.
62 CONFIG_SRC_SUBDIR="arch gdbsupport nat target"
63 AC_SUBST(CONFIG_SRC_SUBDIR)
65 AC_CONFIG_COMMANDS([gdbdepdir],[
66 for subdir in ${CONFIG_SRC_SUBDIR}
68 $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR
70 [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"])
72 ZW_PROG_COMPILER_DEPENDENCIES([CC])
74 AC_CHECK_HEADERS(termios.h sys/reg.h string.h dnl
75 sys/procfs.h linux/elf.h dnl
76 fcntl.h signal.h sys/file.h dnl
77 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
78 netinet/tcp.h arpa/inet.h)
80 AC_CHECK_FUNCS(pread pwrite pread64)
82 # Check the return and argument types of ptrace.
89 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
90 Equivalent to --with-ust-include=PATH/include
91 plus --with-ust-lib=PATH/lib])
92 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
93 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
105 ustlibs="-L$with_ust/lib -lust"
106 ustinc="-I$with_ust/include "
109 if test "x$with_ust_include" != x; then
110 ustinc="-I$with_ust_include "
112 if test "x$with_ust_lib" != x; then
113 ustlibs="-L$with_ust_lib -lust"
116 if test "x$with_ust" != "xno"; then
117 saved_CFLAGS="$CFLAGS"
118 CFLAGS="$CFLAGS $ustinc"
119 AC_MSG_CHECKING([for ust])
121 #define CONFIG_UST_GDB_INTEGRATION
124 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
125 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
126 CFLAGS="$saved_CFLAGS"
129 # Flags needed for UST
135 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
136 dnl debugging messages. It lives in -ldl which is handled below so we don't
137 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
141 AC_CHECK_FUNCS(dladdr)
146 AC_CHECK_DECLS([perror, vasprintf, vsnprintf])
148 AC_CHECK_TYPES(socklen_t, [], [],
149 [#include <sys/types.h>
150 #include <sys/socket.h>
155 # Starting with NDK version 9, <elf.h> actually includes definitions
156 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
157 # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
158 # leading to conflicts with the defintions from <linux/elf.h>.
159 # This makes it impossible for us to include both <elf.h> and
160 # <linux/elf.h>, which means that, in practice, we do not have
161 # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
162 # Therefore, do not try to auto-detect availability, as it would
163 # get it wrong on this platform.
166 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
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"])
195 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32],
196 [save_CPPFLAGS="$CPPFLAGS"
197 CPPFLAGS="$CPPFLAGS $CFLAGS"
198 AC_EGREP_CPP([got it], [
199 #if __x86_64__ && __ILP32__
202 ], [gdb_cv_x86_is_x32=yes],
203 [gdb_cv_x86_is_x32=no])
204 CPPFLAGS="$save_CPPFLAGS"])
208 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
209 [save_CPPFLAGS="$CPPFLAGS"
210 CPPFLAGS="$CPPFLAGS $CFLAGS"
211 AC_EGREP_CPP([got it], [
215 ], [gdb_cv_m68k_is_coldfire=yes],
216 [gdb_cv_m68k_is_coldfire=no])
217 CPPFLAGS="$save_CPPFLAGS"])
221 . ${srcdir}/configure.srv
223 if test "${srv_mingwce}" = "yes"; then
225 elif test "${srv_mingw}" = "yes"; then
226 # WIN32APILIBS is set by GDB_AC_COMMON.
227 LIBS="$LIBS $WIN32APILIBS"
230 if test "${srv_linux_usrregs}" = "yes"; then
231 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
232 [Define if the target supports PTRACE_PEEKUSR for register ]
236 if test "${srv_linux_regsets}" = "yes"; then
237 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
238 [Define if the target supports register sets.])
240 AC_MSG_CHECKING(for PTRACE_GETREGS)
241 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
242 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
244 [gdbsrv_cv_have_ptrace_getregs=yes],
245 [gdbsrv_cv_have_ptrace_getregs=no])])
246 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
247 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
248 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
249 [Define if the target supports PTRACE_GETREGS for register ]
253 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
254 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
255 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
256 [PTRACE_GETFPXREGS;],
257 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
258 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
259 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
260 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
261 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
262 [Define if the target supports PTRACE_GETFPXREGS for extended ]
267 if test "${srv_linux_btrace}" = "yes"; then
268 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
269 [Define if the target supports branch tracing.])
272 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
273 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
274 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
277 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
278 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
279 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
282 dnl Check for libdl, but do not add it to LIBS as only gdbserver
283 dnl needs it (and gdbreplay doesn't).
285 AC_CHECK_LIB(dl, dlopen)
291 if test "$srv_linux_thread_db" = "yes"; then
292 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
294 AC_MSG_CHECKING(for the dynamic export flag)
295 old_LDFLAGS="$LDFLAGS"
296 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
298 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
299 LDFLAGS="$LDFLAGS $RDYNAMIC"
301 [found="-Wl,--dynamic-list"
302 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
303 [RDYNAMIC="-rdynamic"
304 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
310 LDFLAGS="$old_LDFLAGS"
311 AC_MSG_RESULT($found)
313 srv_libs="-lthread_db"
316 srv_thread_depfiles="thread-db.o proc-service.o"
317 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
318 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
319 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
320 [gdbsrv_cv_have_td_version=yes],
321 [gdbsrv_cv_have_td_version=no])])
322 if test "$gdbsrv_cv_have_td_version" = yes; then
323 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
327 AC_ARG_WITH(libthread-db,
328 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
329 [srv_libthread_db_path="${withval}"
330 srv_libs="$srv_libthread_db_path"
333 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
334 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
337 if test "$srv_xmlfiles" != ""; then
338 srv_xmlbuiltin="xml-builtin.o"
339 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
341 tmp_xmlfiles=$srv_xmlfiles
343 for f in $tmp_xmlfiles; do
344 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
348 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
349 GDBSERVER_LIBS="$srv_libs"
351 dnl Check whether the target supports __sync_*_compare_and_swap.
352 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
353 gdbsrv_cv_have_sync_builtins, [
354 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
355 gdbsrv_cv_have_sync_builtins=yes,
356 gdbsrv_cv_have_sync_builtins=no)])
357 if test "$gdbsrv_cv_have_sync_builtins" = yes; then
358 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
359 [Define to 1 if the target supports __sync_*_compare_and_swap])
362 dnl Check for -fvisibility=hidden support in the compiler.
363 saved_cflags="$CFLAGS"
364 CFLAGS="$CFLAGS -fvisibility=hidden"
365 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
366 [gdbsrv_cv_have_visibility_hidden=yes],
367 [gdbsrv_cv_have_visibility_hidden=no])
368 CFLAGS="$saved_cflags"
373 # check whether to enable the inprocess agent
374 if test "$ipa_obj" != "" \
375 -a "$gdbsrv_cv_have_sync_builtins" = yes \
376 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
382 AC_ARG_ENABLE(inprocess-agent,
383 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
384 [case "$enableval" in
385 yes) want_ipa=true ;;
386 no) want_ipa=false ;;
387 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
389 [want_ipa=$have_ipa])
393 IPA_DEPFILES="$ipa_obj"
394 extra_libraries="$extra_libraries libinproctrace.so"
396 AC_MSG_ERROR([inprocess agent not supported for this target])
400 AC_SUBST(GDBSERVER_DEPFILES)
401 AC_SUBST(GDBSERVER_LIBS)
402 AC_SUBST(srv_xmlbuiltin)
403 AC_SUBST(srv_xmlfiles)
404 AC_SUBST(IPA_DEPFILES)
405 AC_SUBST(extra_libraries)
407 GNULIB=../gnulib/import
410 if test x"$STDINT_H" != x; then
411 GNULIB_STDINT_H=$GNULIB/$STDINT_H
413 AC_SUBST(GNULIB_STDINT_H)
415 AC_CONFIG_FILES([Makefile])