1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000-2018 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_HEADER(config.h:config.in)
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 . $srcdir/../../bfd/development.sh
48 # Enable -lmcheck by default (it provides cheap-enough memory
49 # mangling), but turn it off for releases.
55 GDB_AC_LIBMCHECK(${libmcheck_default})
58 srv_selftest_objs="common/selftest.o"
59 AC_DEFINE(GDB_SELF_TEST, 1,
60 [Define if self-testing features should be enabled])
63 ACX_NONCANONICAL_TARGET
66 # Dependency checking.
69 # Create sub-directories for objects and dependencies.
70 CONFIG_SRC_SUBDIR="arch common"
71 AC_SUBST(CONFIG_SRC_SUBDIR)
73 AC_CONFIG_COMMANDS([gdbdepdir],[
74 for subdir in ${CONFIG_SRC_SUBDIR}
76 $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR
78 [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"])
80 ZW_PROG_COMPILER_DEPENDENCIES([CC])
82 gnulib_extra_configure_args=
83 # If large-file support is disabled, make sure gnulib does the same.
84 if test "$enable_largefile" = no; then
85 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
88 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
89 # to find the the source subdir to be configured directly under
90 # gdbserver/. We need to build gnulib under some other directory not
91 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
92 # build it in the same directory, when building in the source dir.
93 ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"],
94 ["$gnulib_extra_configure_args"])
96 ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
98 AC_CHECK_HEADERS(termios.h sys/reg.h string.h dnl
99 proc_service.h sys/procfs.h linux/elf.h dnl
100 fcntl.h signal.h sys/file.h dnl
101 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
102 netinet/tcp.h arpa/inet.h)
104 AC_CHECK_FUNCS(getauxval pread pwrite pread64 setns)
108 # Check the return and argument types of ptrace.
115 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
116 Equivalent to --with-ust-include=PATH/include
117 plus --with-ust-lib=PATH/lib])
118 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
119 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
131 ustlibs="-L$with_ust/lib -lust"
132 ustinc="-I$with_ust/include "
135 if test "x$with_ust_include" != x; then
136 ustinc="-I$with_ust_include "
138 if test "x$with_ust_lib" != x; then
139 ustlibs="-L$with_ust_lib -lust"
142 if test "x$with_ust" != "xno"; then
143 saved_CFLAGS="$CFLAGS"
144 CFLAGS="$CFLAGS $ustinc"
145 AC_MSG_CHECKING([for ust])
147 #define CONFIG_UST_GDB_INTEGRATION
150 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
151 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
152 CFLAGS="$saved_CFLAGS"
155 # Flags needed for UST
161 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
162 dnl debugging messages. It lives in -ldl which is handled below so we don't
163 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
167 AC_CHECK_FUNCS(dladdr)
172 AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf])
174 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
176 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
177 # Older amd64 Linux's don't have the fs_base and gs_base members of
178 # `struct user_regs_struct'.
179 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
180 [], [], [#include <sys/types.h>
181 #include <sys/user.h>])
184 AC_CHECK_TYPES(socklen_t, [], [],
185 [#include <sys/types.h>
186 #include <sys/socket.h>
191 # Starting with NDK version 9, <elf.h> actually includes definitions
192 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
193 # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
194 # leading to conflicts with the defintions from <linux/elf.h>.
195 # This makes it impossible for us to include both <elf.h> and
196 # <linux/elf.h>, which means that, in practice, we do not have
197 # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
198 # Therefore, do not try to auto-detect availability, as it would
199 # get it wrong on this platform.
202 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
207 ACX_PKGVERSION([GDB])
208 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
209 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
210 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
212 # Check for various supplementary target information (beyond the
213 # triplet) which might affect the choices in configure.srv.
218 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
219 [save_CPPFLAGS="$CPPFLAGS"
220 CPPFLAGS="$CPPFLAGS $CFLAGS"
221 AC_EGREP_CPP([got it], [
225 ], [gdb_cv_i386_is_x86_64=yes],
226 [gdb_cv_i386_is_x86_64=no])
227 CPPFLAGS="$save_CPPFLAGS"])
231 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32],
232 [save_CPPFLAGS="$CPPFLAGS"
233 CPPFLAGS="$CPPFLAGS $CFLAGS"
234 AC_EGREP_CPP([got it], [
235 #if __x86_64__ && __ILP32__
238 ], [gdb_cv_x86_is_x32=yes],
239 [gdb_cv_x86_is_x32=no])
240 CPPFLAGS="$save_CPPFLAGS"])
244 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
245 [save_CPPFLAGS="$CPPFLAGS"
246 CPPFLAGS="$CPPFLAGS $CFLAGS"
247 AC_EGREP_CPP([got it], [
251 ], [gdb_cv_m68k_is_coldfire=yes],
252 [gdb_cv_m68k_is_coldfire=no])
253 CPPFLAGS="$save_CPPFLAGS"])
257 . ${srcdir}/configure.srv
259 # Add in the common host objects.
260 . ${srcdir}/../common/common.host
261 srv_host_obs="$common_host_obs"
263 if test "${srv_mingwce}" = "yes"; then
265 elif test "${srv_mingw}" = "yes"; then
266 LIBS="$LIBS -lws2_32"
267 elif test "${srv_qnx}" = "yes"; then
268 LIBS="$LIBS -lsocket"
269 elif test "${srv_lynxos}" = "yes"; then
270 LIBS="$LIBS -lnetinet"
273 if test "${srv_mingw}" = "yes"; then
274 AC_DEFINE(USE_WIN32API, 1,
275 [Define if we should use the Windows API, instead of the
276 POSIX API. On Windows, we use the Windows API when
277 building for MinGW, but the POSIX API when building
281 if test "${srv_linux_usrregs}" = "yes"; then
282 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
283 [Define if the target supports PTRACE_PEEKUSR for register ]
287 if test "${srv_linux_regsets}" = "yes"; then
288 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
289 [Define if the target supports register sets.])
291 AC_MSG_CHECKING(for PTRACE_GETREGS)
292 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
293 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
295 [gdbsrv_cv_have_ptrace_getregs=yes],
296 [gdbsrv_cv_have_ptrace_getregs=no])])
297 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
298 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
299 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
300 [Define if the target supports PTRACE_GETREGS for register ]
304 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
305 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
306 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
307 [PTRACE_GETFPXREGS;],
308 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
309 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
310 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
311 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
312 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
313 [Define if the target supports PTRACE_GETFPXREGS for extended ]
318 if test "${srv_linux_btrace}" = "yes"; then
319 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
320 [Define if the target supports branch tracing.])
323 if test "$ac_cv_header_sys_procfs_h" = yes; then
324 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
325 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
326 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
327 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
328 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
331 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
332 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
333 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
336 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
337 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
338 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
341 dnl Check for libdl, but do not add it to LIBS as only gdbserver
342 dnl needs it (and gdbreplay doesn't).
344 AC_CHECK_LIB(dl, dlopen)
350 if test "$srv_linux_thread_db" = "yes"; then
351 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
353 AC_MSG_CHECKING(for the dynamic export flag)
354 old_LDFLAGS="$LDFLAGS"
355 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
357 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
358 LDFLAGS="$LDFLAGS $RDYNAMIC"
360 [found="-Wl,--dynamic-list"
361 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
362 [RDYNAMIC="-rdynamic"
363 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
369 LDFLAGS="$old_LDFLAGS"
370 AC_MSG_RESULT($found)
372 srv_libs="-lthread_db"
375 srv_thread_depfiles="thread-db.o proc-service.o"
376 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
377 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
378 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
379 [gdbsrv_cv_have_td_version=yes],
380 [gdbsrv_cv_have_td_version=no])])
381 if test $gdbsrv_cv_have_td_version = yes; then
382 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
386 AC_ARG_WITH(libthread-db,
387 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
388 [srv_libthread_db_path="${withval}"
389 srv_libs="$srv_libthread_db_path"
392 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
393 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
396 if test "$srv_xmlfiles" != ""; then
397 srv_xmlbuiltin="xml-builtin.o"
398 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
400 tmp_xmlfiles=$srv_xmlfiles
402 for f in $tmp_xmlfiles; do
403 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
407 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs $srv_selftest_objs"
408 GDBSERVER_LIBS="$srv_libs"
410 dnl Check whether the target supports __sync_*_compare_and_swap.
411 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
412 gdbsrv_cv_have_sync_builtins, [
413 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
414 gdbsrv_cv_have_sync_builtins=yes,
415 gdbsrv_cv_have_sync_builtins=no)])
416 if test $gdbsrv_cv_have_sync_builtins = yes; then
417 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
418 [Define to 1 if the target supports __sync_*_compare_and_swap])
421 dnl Check for -fvisibility=hidden support in the compiler.
422 saved_cflags="$CFLAGS"
423 CFLAGS="$CFLAGS -fvisibility=hidden"
424 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
425 [gdbsrv_cv_have_visibility_hidden=yes],
426 [gdbsrv_cv_have_visibility_hidden=no])
427 CFLAGS="$saved_cflags"
429 dnl Check if we can disable the virtual address space randomization.
430 dnl The functionality of setarch -R.
431 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
432 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
433 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
434 # define ADDR_NO_RANDOMIZE 0x0040000
436 /* Test the flag could be set and stays set. */
437 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
438 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
440 AC_RUN_IFELSE([PERSONALITY_TEST],
441 [gdbsrv_cv_have_personality=true],
442 [gdbsrv_cv_have_personality=false],
443 [AC_LINK_IFELSE([PERSONALITY_TEST],
444 [gdbsrv_cv_have_personality=true],
445 [gdbsrv_cv_have_personality=false])])
446 if $gdbsrv_cv_have_personality
448 AC_DEFINE([HAVE_PERSONALITY], 1,
449 [Define if you support the personality syscall.])
456 # check whether to enable the inprocess agent
457 if test "$ipa_obj" != "" \
458 -a "$gdbsrv_cv_have_sync_builtins" = yes \
459 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
465 AC_ARG_ENABLE(inprocess-agent,
466 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
467 [case "$enableval" in
468 yes) want_ipa=true ;;
469 no) want_ipa=false ;;
470 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
472 [want_ipa=$have_ipa])
476 IPA_DEPFILES="$ipa_obj"
477 extra_libraries="$extra_libraries libinproctrace.so"
479 AC_MSG_ERROR([inprocess agent not supported for this target])
483 AC_SUBST(GDBSERVER_DEPFILES)
484 AC_SUBST(GDBSERVER_LIBS)
485 AC_SUBST(srv_xmlbuiltin)
486 AC_SUBST(srv_xmlfiles)
487 AC_SUBST(IPA_DEPFILES)
488 AC_SUBST(extra_libraries)
490 GNULIB=build-gnulib-gdbserver/import
493 if test x"$STDINT_H" != x; then
494 GNULIB_STDINT_H=$GNULIB/$STDINT_H
496 AC_SUBST(GNULIB_STDINT_H)
498 AC_CONFIG_FILES([Makefile],
499 [case x$CONFIG_HEADERS in