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"
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 proc_service.h 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(getauxval pread pwrite pread64 setns)
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 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
165 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
166 # Older amd64 Linux's don't have the fs_base and gs_base members of
167 # `struct user_regs_struct'.
168 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
169 [], [], [#include <sys/types.h>
170 #include <sys/user.h>])
173 AC_CHECK_TYPES(socklen_t, [], [],
174 [#include <sys/types.h>
175 #include <sys/socket.h>
180 # Starting with NDK version 9, <elf.h> actually includes definitions
181 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
182 # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
183 # leading to conflicts with the defintions from <linux/elf.h>.
184 # This makes it impossible for us to include both <elf.h> and
185 # <linux/elf.h>, which means that, in practice, we do not have
186 # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
187 # Therefore, do not try to auto-detect availability, as it would
188 # get it wrong on this platform.
191 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
196 ACX_PKGVERSION([GDB])
197 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
198 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
199 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
201 # Check for various supplementary target information (beyond the
202 # triplet) which might affect the choices in configure.srv.
207 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
208 [save_CPPFLAGS="$CPPFLAGS"
209 CPPFLAGS="$CPPFLAGS $CFLAGS"
210 AC_EGREP_CPP([got it], [
214 ], [gdb_cv_i386_is_x86_64=yes],
215 [gdb_cv_i386_is_x86_64=no])
216 CPPFLAGS="$save_CPPFLAGS"])
220 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32],
221 [save_CPPFLAGS="$CPPFLAGS"
222 CPPFLAGS="$CPPFLAGS $CFLAGS"
223 AC_EGREP_CPP([got it], [
224 #if __x86_64__ && __ILP32__
227 ], [gdb_cv_x86_is_x32=yes],
228 [gdb_cv_x86_is_x32=no])
229 CPPFLAGS="$save_CPPFLAGS"])
233 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
234 [save_CPPFLAGS="$CPPFLAGS"
235 CPPFLAGS="$CPPFLAGS $CFLAGS"
236 AC_EGREP_CPP([got it], [
240 ], [gdb_cv_m68k_is_coldfire=yes],
241 [gdb_cv_m68k_is_coldfire=no])
242 CPPFLAGS="$save_CPPFLAGS"])
246 . ${srcdir}/configure.srv
248 if test "${srv_mingwce}" = "yes"; then
250 elif test "${srv_mingw}" = "yes"; then
251 LIBS="$LIBS -lws2_32"
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 "${srv_mingw}" = "yes"; then
259 AC_DEFINE(USE_WIN32API, 1,
260 [Define if we should use the Windows API, instead of the
261 POSIX API. On Windows, we use the Windows API when
262 building for MinGW, but the POSIX API when building
266 if test "${srv_linux_usrregs}" = "yes"; then
267 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
268 [Define if the target supports PTRACE_PEEKUSR for register ]
272 if test "${srv_linux_regsets}" = "yes"; then
273 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
274 [Define if the target supports register sets.])
276 AC_MSG_CHECKING(for PTRACE_GETREGS)
277 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
278 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
280 [gdbsrv_cv_have_ptrace_getregs=yes],
281 [gdbsrv_cv_have_ptrace_getregs=no])])
282 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
283 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
284 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
285 [Define if the target supports PTRACE_GETREGS for register ]
289 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
290 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
291 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
292 [PTRACE_GETFPXREGS;],
293 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
294 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
295 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
296 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
297 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
298 [Define if the target supports PTRACE_GETFPXREGS for extended ]
303 if test "${srv_linux_btrace}" = "yes"; then
304 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
305 [Define if the target supports branch tracing.])
308 if test "$ac_cv_header_sys_procfs_h" = yes; then
309 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
310 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
311 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
312 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
313 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
316 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
317 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
318 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
321 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
322 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
323 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
326 dnl Check for libdl, but do not add it to LIBS as only gdbserver
327 dnl needs it (and gdbreplay doesn't).
329 AC_CHECK_LIB(dl, dlopen)
335 if test "$srv_linux_thread_db" = "yes"; then
336 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
338 AC_MSG_CHECKING(for the dynamic export flag)
339 old_LDFLAGS="$LDFLAGS"
340 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
342 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
343 LDFLAGS="$LDFLAGS $RDYNAMIC"
345 [found="-Wl,--dynamic-list"
346 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
347 [RDYNAMIC="-rdynamic"
348 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
354 LDFLAGS="$old_LDFLAGS"
355 AC_MSG_RESULT($found)
357 srv_libs="-lthread_db"
360 srv_thread_depfiles="thread-db.o proc-service.o"
361 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
362 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
363 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
364 [gdbsrv_cv_have_td_version=yes],
365 [gdbsrv_cv_have_td_version=no])])
366 if test "$gdbsrv_cv_have_td_version" = yes; then
367 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
371 AC_ARG_WITH(libthread-db,
372 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
373 [srv_libthread_db_path="${withval}"
374 srv_libs="$srv_libthread_db_path"
377 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
378 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
381 if test "$srv_xmlfiles" != ""; then
382 srv_xmlbuiltin="xml-builtin.o"
383 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
385 tmp_xmlfiles=$srv_xmlfiles
387 for f in $tmp_xmlfiles; do
388 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
392 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_selftest_objs"
393 GDBSERVER_LIBS="$srv_libs"
395 dnl Check whether the target supports __sync_*_compare_and_swap.
396 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
397 gdbsrv_cv_have_sync_builtins, [
398 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
399 gdbsrv_cv_have_sync_builtins=yes,
400 gdbsrv_cv_have_sync_builtins=no)])
401 if test "$gdbsrv_cv_have_sync_builtins" = yes; then
402 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
403 [Define to 1 if the target supports __sync_*_compare_and_swap])
406 dnl Check for -fvisibility=hidden support in the compiler.
407 saved_cflags="$CFLAGS"
408 CFLAGS="$CFLAGS -fvisibility=hidden"
409 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
410 [gdbsrv_cv_have_visibility_hidden=yes],
411 [gdbsrv_cv_have_visibility_hidden=no])
412 CFLAGS="$saved_cflags"
414 dnl Check if we can disable the virtual address space randomization.
415 dnl The functionality of setarch -R.
416 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
417 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
418 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
419 # define ADDR_NO_RANDOMIZE 0x0040000
421 /* Test the flag could be set and stays set. */
422 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
423 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
425 AC_RUN_IFELSE([PERSONALITY_TEST],
426 [gdbsrv_cv_have_personality=true],
427 [gdbsrv_cv_have_personality=false],
428 [AC_LINK_IFELSE([PERSONALITY_TEST],
429 [gdbsrv_cv_have_personality=true],
430 [gdbsrv_cv_have_personality=false])])
431 if $gdbsrv_cv_have_personality
433 AC_DEFINE([HAVE_PERSONALITY], 1,
434 [Define if you support the personality syscall.])
441 # check whether to enable the inprocess agent
442 if test "$ipa_obj" != "" \
443 -a "$gdbsrv_cv_have_sync_builtins" = yes \
444 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
450 AC_ARG_ENABLE(inprocess-agent,
451 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
452 [case "$enableval" in
453 yes) want_ipa=true ;;
454 no) want_ipa=false ;;
455 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
457 [want_ipa=$have_ipa])
461 IPA_DEPFILES="$ipa_obj"
462 extra_libraries="$extra_libraries libinproctrace.so"
464 AC_MSG_ERROR([inprocess agent not supported for this target])
468 AC_SUBST(GDBSERVER_DEPFILES)
469 AC_SUBST(GDBSERVER_LIBS)
470 AC_SUBST(srv_xmlbuiltin)
471 AC_SUBST(srv_xmlfiles)
472 AC_SUBST(IPA_DEPFILES)
473 AC_SUBST(extra_libraries)
475 GNULIB=build-gnulib-gdbserver/import
478 if test x"$STDINT_H" != x; then
479 GNULIB_STDINT_H=$GNULIB/$STDINT_H
481 AC_SUBST(GNULIB_STDINT_H)
483 AC_CONFIG_FILES([Makefile])