1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000-2017 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.
24 AC_CONFIG_HEADER(config.h:config.in)
41 # We require a C++11 compiler. Check if one is available, and if
42 # necessary, set CXX_DIALECT to some -std=xxx switch.
43 AX_CXX_COMPILE_STDCXX(11, , mandatory)
47 # Set the 'development' global.
48 . $srcdir/../../bfd/development.sh
50 # Enable -lmcheck by default (it provides cheap-enough memory
51 # mangling), but turn it off for releases.
57 GDB_AC_LIBMCHECK(${libmcheck_default})
59 ACX_NONCANONICAL_TARGET
62 # Dependency checking.
64 ZW_PROG_COMPILER_DEPENDENCIES([CC])
66 gnulib_extra_configure_args=
67 # If large-file support is disabled, make sure gnulib does the same.
68 if test "$enable_largefile" = no; then
69 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
72 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
73 # to find the the source subdir to be configured directly under
74 # gdbserver/. We need to build gnulib under some other directory not
75 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
76 # build it in the same directory, when building in the source dir.
77 ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"],
78 ["$gnulib_extra_configure_args"])
80 ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
82 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
83 proc_service.h sys/procfs.h linux/elf.h dnl
84 fcntl.h signal.h sys/file.h dnl
85 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
86 netinet/tcp.h arpa/inet.h)
88 AC_CHECK_FUNCS(getauxval pread pwrite pread64 setns)
92 # Check the return and argument types of ptrace.
99 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
100 Equivalent to --with-ust-include=PATH/include
101 plus --with-ust-lib=PATH/lib])
102 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
103 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
115 ustlibs="-L$with_ust/lib -lust"
116 ustinc="-I$with_ust/include "
119 if test "x$with_ust_include" != x; then
120 ustinc="-I$with_ust_include "
122 if test "x$with_ust_lib" != x; then
123 ustlibs="-L$with_ust_lib -lust"
126 if test "x$with_ust" != "xno"; then
127 saved_CFLAGS="$CFLAGS"
128 CFLAGS="$CFLAGS $ustinc"
129 AC_MSG_CHECKING([for ust])
131 #define CONFIG_UST_GDB_INTEGRATION
134 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
135 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
136 CFLAGS="$saved_CFLAGS"
139 # Flags needed for UST
144 dnl The codebase isn't clean yet with this flag.
145 case " $WARN_CFLAGS " in
146 *" -Wmissing-prototypes "*)
147 WARN_CFLAGS="$WARN_CFLAGS -Wno-missing-prototypes"
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([strerror, perror, vasprintf, vsnprintf])
164 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
166 AC_CHECK_TYPES(socklen_t, [], [],
167 [#include <sys/types.h>
168 #include <sys/socket.h>
173 # Starting with NDK version 9, <elf.h> actually includes definitions
174 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
175 # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
176 # leading to conflicts with the defintions from <linux/elf.h>.
177 # This makes it impossible for us to include both <elf.h> and
178 # <linux/elf.h>, which means that, in practice, we do not have
179 # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
180 # Therefore, do not try to auto-detect availability, as it would
181 # get it wrong on this platform.
184 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
189 ACX_PKGVERSION([GDB])
190 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
191 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
192 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
194 # Check for various supplementary target information (beyond the
195 # triplet) which might affect the choices in configure.srv.
200 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
201 [save_CPPFLAGS="$CPPFLAGS"
202 CPPFLAGS="$CPPFLAGS $CFLAGS"
203 AC_EGREP_CPP([got it], [
207 ], [gdb_cv_i386_is_x86_64=yes],
208 [gdb_cv_i386_is_x86_64=no])
209 CPPFLAGS="$save_CPPFLAGS"])
213 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32],
214 [save_CPPFLAGS="$CPPFLAGS"
215 CPPFLAGS="$CPPFLAGS $CFLAGS"
216 AC_EGREP_CPP([got it], [
217 #if __x86_64__ && __ILP32__
220 ], [gdb_cv_x86_is_x32=yes],
221 [gdb_cv_x86_is_x32=no])
222 CPPFLAGS="$save_CPPFLAGS"])
226 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
227 [save_CPPFLAGS="$CPPFLAGS"
228 CPPFLAGS="$CPPFLAGS $CFLAGS"
229 AC_EGREP_CPP([got it], [
233 ], [gdb_cv_m68k_is_coldfire=yes],
234 [gdb_cv_m68k_is_coldfire=no])
235 CPPFLAGS="$save_CPPFLAGS"])
239 . ${srcdir}/configure.srv
241 # Add in the common host objects.
242 . ${srcdir}/../common/common.host
243 srv_host_obs="$common_host_obs"
245 if test "${srv_mingwce}" = "yes"; then
247 elif test "${srv_mingw}" = "yes"; then
248 LIBS="$LIBS -lws2_32"
249 elif test "${srv_qnx}" = "yes"; then
250 LIBS="$LIBS -lsocket"
251 elif test "${srv_lynxos}" = "yes"; then
252 LIBS="$LIBS -lnetinet"
255 if test "${srv_mingw}" = "yes"; then
256 AC_DEFINE(USE_WIN32API, 1,
257 [Define if we should use the Windows API, instead of the
258 POSIX API. On Windows, we use the Windows API when
259 building for MinGW, but the POSIX API when building
263 if test "${srv_linux_usrregs}" = "yes"; then
264 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
265 [Define if the target supports PTRACE_PEEKUSR for register ]
269 if test "${srv_linux_regsets}" = "yes"; then
270 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
271 [Define if the target supports register sets.])
273 AC_MSG_CHECKING(for PTRACE_GETREGS)
274 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
275 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
277 [gdbsrv_cv_have_ptrace_getregs=yes],
278 [gdbsrv_cv_have_ptrace_getregs=no])])
279 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
280 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
281 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
282 [Define if the target supports PTRACE_GETREGS for register ]
286 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
287 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
288 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
289 [PTRACE_GETFPXREGS;],
290 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
291 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
292 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
293 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
294 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
295 [Define if the target supports PTRACE_GETFPXREGS for extended ]
300 if test "${srv_linux_btrace}" = "yes"; then
301 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
302 [Define if the target supports branch tracing.])
305 if test "$ac_cv_header_sys_procfs_h" = yes; then
306 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
307 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
308 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
309 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
310 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
313 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
314 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
315 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
318 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
319 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
320 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
323 dnl Check for libdl, but do not add it to LIBS as only gdbserver
324 dnl needs it (and gdbreplay doesn't).
326 AC_CHECK_LIB(dl, dlopen)
332 if test "$srv_linux_thread_db" = "yes"; then
333 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
335 AC_MSG_CHECKING(for the dynamic export flag)
336 old_LDFLAGS="$LDFLAGS"
337 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
339 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
340 LDFLAGS="$LDFLAGS $RDYNAMIC"
342 [found="-Wl,--dynamic-list"
343 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
344 [RDYNAMIC="-rdynamic"
345 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
351 LDFLAGS="$old_LDFLAGS"
352 AC_MSG_RESULT($found)
354 srv_libs="-lthread_db"
357 srv_thread_depfiles="thread-db.o proc-service.o"
358 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
359 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
360 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
361 [gdbsrv_cv_have_td_version=yes],
362 [gdbsrv_cv_have_td_version=no])])
363 if test $gdbsrv_cv_have_td_version = yes; then
364 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
368 AC_ARG_WITH(libthread-db,
369 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
370 [srv_libthread_db_path="${withval}"
371 srv_libs="$srv_libthread_db_path"
374 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
375 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
378 if test "$srv_xmlfiles" != ""; then
379 srv_xmlbuiltin="xml-builtin.o"
380 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
382 tmp_xmlfiles=$srv_xmlfiles
384 for f in $tmp_xmlfiles; do
385 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
389 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs"
390 GDBSERVER_LIBS="$srv_libs"
392 dnl Check whether the target supports __sync_*_compare_and_swap.
393 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
394 gdbsrv_cv_have_sync_builtins, [
395 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
396 gdbsrv_cv_have_sync_builtins=yes,
397 gdbsrv_cv_have_sync_builtins=no)])
398 if test $gdbsrv_cv_have_sync_builtins = yes; then
399 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
400 [Define to 1 if the target supports __sync_*_compare_and_swap])
403 dnl Check for -fvisibility=hidden support in the compiler.
404 saved_cflags="$CFLAGS"
405 CFLAGS="$CFLAGS -fvisibility=hidden"
406 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
407 [gdbsrv_cv_have_visibility_hidden=yes],
408 [gdbsrv_cv_have_visibility_hidden=no])
409 CFLAGS="$saved_cflags"
411 dnl Check if we can disable the virtual address space randomization.
412 dnl The functionality of setarch -R.
413 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
414 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
415 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
416 # define ADDR_NO_RANDOMIZE 0x0040000
418 /* Test the flag could be set and stays set. */
419 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
420 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
422 AC_RUN_IFELSE([PERSONALITY_TEST],
423 [gdbsrv_cv_have_personality=true],
424 [gdbsrv_cv_have_personality=false],
425 [AC_LINK_IFELSE([PERSONALITY_TEST],
426 [gdbsrv_cv_have_personality=true],
427 [gdbsrv_cv_have_personality=false])])
428 if $gdbsrv_cv_have_personality
430 AC_DEFINE([HAVE_PERSONALITY], 1,
431 [Define if you support the personality syscall.])
438 # check whether to enable the inprocess agent
439 if test "$ipa_obj" != "" \
440 -a "$gdbsrv_cv_have_sync_builtins" = yes \
441 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
447 AC_ARG_ENABLE(inprocess-agent,
448 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
449 [case "$enableval" in
450 yes) want_ipa=true ;;
451 no) want_ipa=false ;;
452 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
454 [want_ipa=$have_ipa])
458 IPA_DEPFILES="$ipa_obj"
459 extra_libraries="$extra_libraries libinproctrace.so"
461 AC_MSG_ERROR([inprocess agent not supported for this target])
465 AC_SUBST(GDBSERVER_DEPFILES)
466 AC_SUBST(GDBSERVER_LIBS)
467 AC_SUBST(srv_xmlbuiltin)
468 AC_SUBST(srv_xmlfiles)
469 AC_SUBST(IPA_DEPFILES)
470 AC_SUBST(extra_libraries)
472 GNULIB=build-gnulib-gdbserver/import
475 if test x"$STDINT_H" != x; then
476 GNULIB_STDINT_H=$GNULIB/$STDINT_H
478 AC_SUBST(GNULIB_STDINT_H)
480 AC_CONFIG_FILES([Makefile],
481 [case x$CONFIG_HEADERS in