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])
39 # We require a C++11 compiler. Check if one is available, and if
40 # necessary, set CXX_DIALECT to some -std=xxx switch.
41 AX_CXX_COMPILE_STDCXX(11, , mandatory)
45 # Set the 'development' global.
46 . $srcdir/../../bfd/development.sh
49 srv_selftest_objs="gdbsupport/selftest.o"
52 ACX_NONCANONICAL_TARGET
55 # Dependency checking.
58 # Create sub-directories for objects and dependencies.
59 CONFIG_SRC_SUBDIR="arch gdbsupport nat target"
60 AC_SUBST(CONFIG_SRC_SUBDIR)
62 AC_CONFIG_COMMANDS([gdbdepdir],[
63 for subdir in ${CONFIG_SRC_SUBDIR}
65 $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR
67 [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"])
69 ZW_PROG_COMPILER_DEPENDENCIES([CC])
71 gnulib_extra_configure_args=
72 # If large-file support is disabled, make sure gnulib does the same.
73 if test "$enable_largefile" = no; then
74 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
77 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
78 # to find the the source subdir to be configured directly under
79 # gdbserver/. We need to build gnulib under some other directory not
80 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
81 # build it in the same directory, when building in the source dir.
82 ACX_CONFIGURE_DIR(["../../gnulib"], ["build-gnulib-gdbserver"],
83 ["$gnulib_extra_configure_args"])
85 ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
87 AC_CHECK_HEADERS(termios.h sys/reg.h string.h dnl
88 sys/procfs.h linux/elf.h dnl
89 fcntl.h signal.h sys/file.h dnl
90 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
91 netinet/tcp.h arpa/inet.h)
93 AC_CHECK_FUNCS(pread pwrite pread64)
97 # Check the return and argument types of ptrace.
104 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
105 Equivalent to --with-ust-include=PATH/include
106 plus --with-ust-lib=PATH/lib])
107 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
108 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
120 ustlibs="-L$with_ust/lib -lust"
121 ustinc="-I$with_ust/include "
124 if test "x$with_ust_include" != x; then
125 ustinc="-I$with_ust_include "
127 if test "x$with_ust_lib" != x; then
128 ustlibs="-L$with_ust_lib -lust"
131 if test "x$with_ust" != "xno"; then
132 saved_CFLAGS="$CFLAGS"
133 CFLAGS="$CFLAGS $ustinc"
134 AC_MSG_CHECKING([for ust])
136 #define CONFIG_UST_GDB_INTEGRATION
139 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
140 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
141 CFLAGS="$saved_CFLAGS"
144 # Flags needed for UST
150 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
151 dnl debugging messages. It lives in -ldl which is handled below so we don't
152 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
156 AC_CHECK_FUNCS(dladdr)
161 AC_CHECK_DECLS([perror, vasprintf, vsnprintf])
163 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
164 # Older amd64 Linux's don't have the fs_base and gs_base members of
165 # `struct user_regs_struct'.
166 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
167 [], [], [#include <sys/types.h>
168 #include <sys/user.h>])
171 AC_CHECK_TYPES(socklen_t, [], [],
172 [#include <sys/types.h>
173 #include <sys/socket.h>
178 # Starting with NDK version 9, <elf.h> actually includes definitions
179 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
180 # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
181 # leading to conflicts with the defintions from <linux/elf.h>.
182 # This makes it impossible for us to include both <elf.h> and
183 # <linux/elf.h>, which means that, in practice, we do not have
184 # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
185 # Therefore, do not try to auto-detect availability, as it would
186 # get it wrong on this platform.
189 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
194 ACX_PKGVERSION([GDB])
195 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
196 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
197 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
199 # Check for various supplementary target information (beyond the
200 # triplet) which might affect the choices in configure.srv.
205 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
206 [save_CPPFLAGS="$CPPFLAGS"
207 CPPFLAGS="$CPPFLAGS $CFLAGS"
208 AC_EGREP_CPP([got it], [
212 ], [gdb_cv_i386_is_x86_64=yes],
213 [gdb_cv_i386_is_x86_64=no])
214 CPPFLAGS="$save_CPPFLAGS"])
218 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32],
219 [save_CPPFLAGS="$CPPFLAGS"
220 CPPFLAGS="$CPPFLAGS $CFLAGS"
221 AC_EGREP_CPP([got it], [
222 #if __x86_64__ && __ILP32__
225 ], [gdb_cv_x86_is_x32=yes],
226 [gdb_cv_x86_is_x32=no])
227 CPPFLAGS="$save_CPPFLAGS"])
231 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
232 [save_CPPFLAGS="$CPPFLAGS"
233 CPPFLAGS="$CPPFLAGS $CFLAGS"
234 AC_EGREP_CPP([got it], [
238 ], [gdb_cv_m68k_is_coldfire=yes],
239 [gdb_cv_m68k_is_coldfire=no])
240 CPPFLAGS="$save_CPPFLAGS"])
244 . ${srcdir}/configure.srv
246 if test "${srv_mingwce}" = "yes"; then
248 elif test "${srv_mingw}" = "yes"; then
249 # WIN32APILIBS is set by GDB_AC_COMMON.
250 LIBS="$LIBS $WIN32APILIBS"
251 elif test "${srv_qnx}" = "yes"; then
252 LIBS="$LIBS -lsocket"
253 elif test "${srv_lynxos}" = "yes"; then
254 LIBS="$LIBS -lnetinet"
257 if test "${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 "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
288 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
289 [Define if the target supports PTRACE_GETFPXREGS for extended ]
294 if test "${srv_linux_btrace}" = "yes"; then
295 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
296 [Define if the target supports branch tracing.])
299 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
300 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
301 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
304 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
305 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
306 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
309 dnl Check for libdl, but do not add it to LIBS as only gdbserver
310 dnl needs it (and gdbreplay doesn't).
312 AC_CHECK_LIB(dl, dlopen)
318 if test "$srv_linux_thread_db" = "yes"; then
319 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
321 AC_MSG_CHECKING(for the dynamic export flag)
322 old_LDFLAGS="$LDFLAGS"
323 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
325 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
326 LDFLAGS="$LDFLAGS $RDYNAMIC"
328 [found="-Wl,--dynamic-list"
329 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
330 [RDYNAMIC="-rdynamic"
331 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
337 LDFLAGS="$old_LDFLAGS"
338 AC_MSG_RESULT($found)
340 srv_libs="-lthread_db"
343 srv_thread_depfiles="thread-db.o proc-service.o"
344 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
345 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
346 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
347 [gdbsrv_cv_have_td_version=yes],
348 [gdbsrv_cv_have_td_version=no])])
349 if test "$gdbsrv_cv_have_td_version" = yes; then
350 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
354 AC_ARG_WITH(libthread-db,
355 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
356 [srv_libthread_db_path="${withval}"
357 srv_libs="$srv_libthread_db_path"
360 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
361 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
364 if test "$srv_xmlfiles" != ""; then
365 srv_xmlbuiltin="xml-builtin.o"
366 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
368 tmp_xmlfiles=$srv_xmlfiles
370 for f in $tmp_xmlfiles; do
371 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
375 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_selftest_objs"
376 GDBSERVER_LIBS="$srv_libs"
378 dnl Check whether the target supports __sync_*_compare_and_swap.
379 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
380 gdbsrv_cv_have_sync_builtins, [
381 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
382 gdbsrv_cv_have_sync_builtins=yes,
383 gdbsrv_cv_have_sync_builtins=no)])
384 if test "$gdbsrv_cv_have_sync_builtins" = yes; then
385 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
386 [Define to 1 if the target supports __sync_*_compare_and_swap])
389 dnl Check for -fvisibility=hidden support in the compiler.
390 saved_cflags="$CFLAGS"
391 CFLAGS="$CFLAGS -fvisibility=hidden"
392 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
393 [gdbsrv_cv_have_visibility_hidden=yes],
394 [gdbsrv_cv_have_visibility_hidden=no])
395 CFLAGS="$saved_cflags"
400 # check whether to enable the inprocess agent
401 if test "$ipa_obj" != "" \
402 -a "$gdbsrv_cv_have_sync_builtins" = yes \
403 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
409 AC_ARG_ENABLE(inprocess-agent,
410 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
411 [case "$enableval" in
412 yes) want_ipa=true ;;
413 no) want_ipa=false ;;
414 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
416 [want_ipa=$have_ipa])
420 IPA_DEPFILES="$ipa_obj"
421 extra_libraries="$extra_libraries libinproctrace.so"
423 AC_MSG_ERROR([inprocess agent not supported for this target])
427 AC_SUBST(GDBSERVER_DEPFILES)
428 AC_SUBST(GDBSERVER_LIBS)
429 AC_SUBST(srv_xmlbuiltin)
430 AC_SUBST(srv_xmlfiles)
431 AC_SUBST(IPA_DEPFILES)
432 AC_SUBST(extra_libraries)
434 GNULIB=build-gnulib-gdbserver/import
437 if test x"$STDINT_H" != x; then
438 GNULIB_STDINT_H=$GNULIB/$STDINT_H
440 AC_SUBST(GNULIB_STDINT_H)
442 AC_CONFIG_FILES([Makefile])