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)
46 # Set the 'development' global.
47 . $srcdir/../../bfd/development.sh
50 srv_selftest_objs="gdbsupport/selftest.o"
53 ACX_NONCANONICAL_TARGET
56 # Dependency checking.
59 # Create sub-directories for objects and dependencies.
60 CONFIG_SRC_SUBDIR="arch gdbsupport nat target"
61 AC_SUBST(CONFIG_SRC_SUBDIR)
63 AC_CONFIG_COMMANDS([gdbdepdir],[
64 for subdir in ${CONFIG_SRC_SUBDIR}
66 $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR
68 [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"])
70 ZW_PROG_COMPILER_DEPENDENCIES([CC])
72 gnulib_extra_configure_args=
73 # If large-file support is disabled, make sure gnulib does the same.
74 if test "$enable_largefile" = no; then
75 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
78 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
79 # to find the the source subdir to be configured directly under
80 # gdbserver/. We need to build gnulib under some other directory not
81 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
82 # build it in the same directory, when building in the source dir.
83 ACX_CONFIGURE_DIR(["../../gnulib"], ["build-gnulib-gdbserver"],
84 ["$gnulib_extra_configure_args"])
86 ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
88 AC_CHECK_HEADERS(termios.h sys/reg.h string.h dnl
89 sys/procfs.h linux/elf.h dnl
90 fcntl.h signal.h sys/file.h dnl
91 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
92 netinet/tcp.h arpa/inet.h)
94 AC_CHECK_FUNCS(pread pwrite pread64)
98 # Check the return and argument types of ptrace.
105 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
106 Equivalent to --with-ust-include=PATH/include
107 plus --with-ust-lib=PATH/lib])
108 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
109 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
121 ustlibs="-L$with_ust/lib -lust"
122 ustinc="-I$with_ust/include "
125 if test "x$with_ust_include" != x; then
126 ustinc="-I$with_ust_include "
128 if test "x$with_ust_lib" != x; then
129 ustlibs="-L$with_ust_lib -lust"
132 if test "x$with_ust" != "xno"; then
133 saved_CFLAGS="$CFLAGS"
134 CFLAGS="$CFLAGS $ustinc"
135 AC_MSG_CHECKING([for ust])
137 #define CONFIG_UST_GDB_INTEGRATION
140 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
141 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
142 CFLAGS="$saved_CFLAGS"
145 # Flags needed for UST
151 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
152 dnl debugging messages. It lives in -ldl which is handled below so we don't
153 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
157 AC_CHECK_FUNCS(dladdr)
162 AC_CHECK_DECLS([perror, vasprintf, vsnprintf])
164 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
165 # Older amd64 Linux's don't have the fs_base and gs_base members of
166 # `struct user_regs_struct'.
167 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
168 [], [], [#include <sys/types.h>
169 #include <sys/user.h>])
172 AC_CHECK_TYPES(socklen_t, [], [],
173 [#include <sys/types.h>
174 #include <sys/socket.h>
179 # Starting with NDK version 9, <elf.h> actually includes definitions
180 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
181 # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
182 # leading to conflicts with the defintions from <linux/elf.h>.
183 # This makes it impossible for us to include both <elf.h> and
184 # <linux/elf.h>, which means that, in practice, we do not have
185 # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
186 # Therefore, do not try to auto-detect availability, as it would
187 # get it wrong on this platform.
190 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
195 ACX_PKGVERSION([GDB])
196 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
197 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
198 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
200 # Check for various supplementary target information (beyond the
201 # triplet) which might affect the choices in configure.srv.
206 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
207 [save_CPPFLAGS="$CPPFLAGS"
208 CPPFLAGS="$CPPFLAGS $CFLAGS"
209 AC_EGREP_CPP([got it], [
213 ], [gdb_cv_i386_is_x86_64=yes],
214 [gdb_cv_i386_is_x86_64=no])
215 CPPFLAGS="$save_CPPFLAGS"])
219 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32],
220 [save_CPPFLAGS="$CPPFLAGS"
221 CPPFLAGS="$CPPFLAGS $CFLAGS"
222 AC_EGREP_CPP([got it], [
223 #if __x86_64__ && __ILP32__
226 ], [gdb_cv_x86_is_x32=yes],
227 [gdb_cv_x86_is_x32=no])
228 CPPFLAGS="$save_CPPFLAGS"])
232 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
233 [save_CPPFLAGS="$CPPFLAGS"
234 CPPFLAGS="$CPPFLAGS $CFLAGS"
235 AC_EGREP_CPP([got it], [
239 ], [gdb_cv_m68k_is_coldfire=yes],
240 [gdb_cv_m68k_is_coldfire=no])
241 CPPFLAGS="$save_CPPFLAGS"])
245 . ${srcdir}/configure.srv
247 if test "${srv_mingwce}" = "yes"; then
249 elif test "${srv_mingw}" = "yes"; then
250 # WIN32APILIBS is set by GDB_AC_COMMON.
251 LIBS="$LIBS $WIN32APILIBS"
252 elif test "${srv_qnx}" = "yes"; then
253 LIBS="$LIBS -lsocket"
254 elif test "${srv_lynxos}" = "yes"; then
255 LIBS="$LIBS -lnetinet"
258 if test "${srv_linux_usrregs}" = "yes"; then
259 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
260 [Define if the target supports PTRACE_PEEKUSR for register ]
264 if test "${srv_linux_regsets}" = "yes"; then
265 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
266 [Define if the target supports register sets.])
268 AC_MSG_CHECKING(for PTRACE_GETREGS)
269 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
270 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
272 [gdbsrv_cv_have_ptrace_getregs=yes],
273 [gdbsrv_cv_have_ptrace_getregs=no])])
274 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
275 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
276 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
277 [Define if the target supports PTRACE_GETREGS for register ]
281 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
282 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
283 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
284 [PTRACE_GETFPXREGS;],
285 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
286 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
287 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
288 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
289 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
290 [Define if the target supports PTRACE_GETFPXREGS for extended ]
295 if test "${srv_linux_btrace}" = "yes"; then
296 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
297 [Define if the target supports branch tracing.])
300 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
301 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
302 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
305 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
306 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
307 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
310 dnl Check for libdl, but do not add it to LIBS as only gdbserver
311 dnl needs it (and gdbreplay doesn't).
313 AC_CHECK_LIB(dl, dlopen)
319 if test "$srv_linux_thread_db" = "yes"; then
320 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
322 AC_MSG_CHECKING(for the dynamic export flag)
323 old_LDFLAGS="$LDFLAGS"
324 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
326 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
327 LDFLAGS="$LDFLAGS $RDYNAMIC"
329 [found="-Wl,--dynamic-list"
330 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
331 [RDYNAMIC="-rdynamic"
332 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
338 LDFLAGS="$old_LDFLAGS"
339 AC_MSG_RESULT($found)
341 srv_libs="-lthread_db"
344 srv_thread_depfiles="thread-db.o proc-service.o"
345 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
346 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
347 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
348 [gdbsrv_cv_have_td_version=yes],
349 [gdbsrv_cv_have_td_version=no])])
350 if test "$gdbsrv_cv_have_td_version" = yes; then
351 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
355 AC_ARG_WITH(libthread-db,
356 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
357 [srv_libthread_db_path="${withval}"
358 srv_libs="$srv_libthread_db_path"
361 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
362 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
365 if test "$srv_xmlfiles" != ""; then
366 srv_xmlbuiltin="xml-builtin.o"
367 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
369 tmp_xmlfiles=$srv_xmlfiles
371 for f in $tmp_xmlfiles; do
372 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
376 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_selftest_objs"
377 GDBSERVER_LIBS="$srv_libs"
379 dnl Check whether the target supports __sync_*_compare_and_swap.
380 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
381 gdbsrv_cv_have_sync_builtins, [
382 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
383 gdbsrv_cv_have_sync_builtins=yes,
384 gdbsrv_cv_have_sync_builtins=no)])
385 if test "$gdbsrv_cv_have_sync_builtins" = yes; then
386 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
387 [Define to 1 if the target supports __sync_*_compare_and_swap])
390 dnl Check for -fvisibility=hidden support in the compiler.
391 saved_cflags="$CFLAGS"
392 CFLAGS="$CFLAGS -fvisibility=hidden"
393 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
394 [gdbsrv_cv_have_visibility_hidden=yes],
395 [gdbsrv_cv_have_visibility_hidden=no])
396 CFLAGS="$saved_cflags"
401 # check whether to enable the inprocess agent
402 if test "$ipa_obj" != "" \
403 -a "$gdbsrv_cv_have_sync_builtins" = yes \
404 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
410 AC_ARG_ENABLE(inprocess-agent,
411 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
412 [case "$enableval" in
413 yes) want_ipa=true ;;
414 no) want_ipa=false ;;
415 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
417 [want_ipa=$have_ipa])
421 IPA_DEPFILES="$ipa_obj"
422 extra_libraries="$extra_libraries libinproctrace.so"
424 AC_MSG_ERROR([inprocess agent not supported for this target])
428 AC_SUBST(GDBSERVER_DEPFILES)
429 AC_SUBST(GDBSERVER_LIBS)
430 AC_SUBST(srv_xmlbuiltin)
431 AC_SUBST(srv_xmlfiles)
432 AC_SUBST(IPA_DEPFILES)
433 AC_SUBST(extra_libraries)
435 GNULIB=build-gnulib-gdbserver/import
438 if test x"$STDINT_H" != x; then
439 GNULIB_STDINT_H=$GNULIB/$STDINT_H
441 AC_SUBST(GNULIB_STDINT_H)
443 AC_CONFIG_FILES([Makefile])