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})
60 AC_DEFINE(GDB_SELF_TEST, 1,
61 [Define if self-testing features should be enabled])
64 ACX_NONCANONICAL_TARGET
67 # Dependency checking.
70 # Create sub-directories for objects and dependencies.
71 CONFIG_SRC_SUBDIR="arch"
72 AC_SUBST(CONFIG_SRC_SUBDIR)
74 AC_CONFIG_COMMANDS([gdbdepdir],[
75 for subdir in ${CONFIG_SRC_SUBDIR}
77 $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR
79 [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"])
81 ZW_PROG_COMPILER_DEPENDENCIES([CC])
83 gnulib_extra_configure_args=
84 # If large-file support is disabled, make sure gnulib does the same.
85 if test "$enable_largefile" = no; then
86 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
89 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
90 # to find the the source subdir to be configured directly under
91 # gdbserver/. We need to build gnulib under some other directory not
92 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
93 # build it in the same directory, when building in the source dir.
94 ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"],
95 ["$gnulib_extra_configure_args"])
97 ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
99 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
100 proc_service.h sys/procfs.h linux/elf.h dnl
101 fcntl.h signal.h sys/file.h dnl
102 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
103 netinet/tcp.h arpa/inet.h)
105 AC_CHECK_FUNCS(getauxval pread pwrite pread64 setns)
109 # Check the return and argument types of ptrace.
116 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
117 Equivalent to --with-ust-include=PATH/include
118 plus --with-ust-lib=PATH/lib])
119 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
120 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
132 ustlibs="-L$with_ust/lib -lust"
133 ustinc="-I$with_ust/include "
136 if test "x$with_ust_include" != x; then
137 ustinc="-I$with_ust_include "
139 if test "x$with_ust_lib" != x; then
140 ustlibs="-L$with_ust_lib -lust"
143 if test "x$with_ust" != "xno"; then
144 saved_CFLAGS="$CFLAGS"
145 CFLAGS="$CFLAGS $ustinc"
146 AC_MSG_CHECKING([for ust])
148 #define CONFIG_UST_GDB_INTEGRATION
151 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
152 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
153 CFLAGS="$saved_CFLAGS"
156 # Flags needed for UST
161 dnl The codebase isn't clean yet with this flag.
162 case " $WARN_CFLAGS " in
163 *" -Wmissing-prototypes "*)
164 WARN_CFLAGS="$WARN_CFLAGS -Wno-missing-prototypes"
168 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
169 dnl debugging messages. It lives in -ldl which is handled below so we don't
170 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
174 AC_CHECK_FUNCS(dladdr)
179 AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf])
181 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
183 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
184 # Older amd64 Linux's don't have the fs_base and gs_base members of
185 # `struct user_regs_struct'.
186 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
187 [], [], [#include <sys/user.h>])
190 AC_CHECK_TYPES(socklen_t, [], [],
191 [#include <sys/types.h>
192 #include <sys/socket.h>
197 # Starting with NDK version 9, <elf.h> actually includes definitions
198 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
199 # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
200 # leading to conflicts with the defintions from <linux/elf.h>.
201 # This makes it impossible for us to include both <elf.h> and
202 # <linux/elf.h>, which means that, in practice, we do not have
203 # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
204 # Therefore, do not try to auto-detect availability, as it would
205 # get it wrong on this platform.
208 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
213 ACX_PKGVERSION([GDB])
214 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
215 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
216 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
218 # Check for various supplementary target information (beyond the
219 # triplet) which might affect the choices in configure.srv.
224 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
225 [save_CPPFLAGS="$CPPFLAGS"
226 CPPFLAGS="$CPPFLAGS $CFLAGS"
227 AC_EGREP_CPP([got it], [
231 ], [gdb_cv_i386_is_x86_64=yes],
232 [gdb_cv_i386_is_x86_64=no])
233 CPPFLAGS="$save_CPPFLAGS"])
237 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32],
238 [save_CPPFLAGS="$CPPFLAGS"
239 CPPFLAGS="$CPPFLAGS $CFLAGS"
240 AC_EGREP_CPP([got it], [
241 #if __x86_64__ && __ILP32__
244 ], [gdb_cv_x86_is_x32=yes],
245 [gdb_cv_x86_is_x32=no])
246 CPPFLAGS="$save_CPPFLAGS"])
250 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
251 [save_CPPFLAGS="$CPPFLAGS"
252 CPPFLAGS="$CPPFLAGS $CFLAGS"
253 AC_EGREP_CPP([got it], [
257 ], [gdb_cv_m68k_is_coldfire=yes],
258 [gdb_cv_m68k_is_coldfire=no])
259 CPPFLAGS="$save_CPPFLAGS"])
263 . ${srcdir}/configure.srv
265 # Add in the common host objects.
266 . ${srcdir}/../common/common.host
267 srv_host_obs="$common_host_obs"
269 if test "${srv_mingwce}" = "yes"; then
271 elif test "${srv_mingw}" = "yes"; then
272 LIBS="$LIBS -lws2_32"
273 elif test "${srv_qnx}" = "yes"; then
274 LIBS="$LIBS -lsocket"
275 elif test "${srv_lynxos}" = "yes"; then
276 LIBS="$LIBS -lnetinet"
279 if test "${srv_mingw}" = "yes"; then
280 AC_DEFINE(USE_WIN32API, 1,
281 [Define if we should use the Windows API, instead of the
282 POSIX API. On Windows, we use the Windows API when
283 building for MinGW, but the POSIX API when building
287 if test "${srv_linux_usrregs}" = "yes"; then
288 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
289 [Define if the target supports PTRACE_PEEKUSR for register ]
293 if test "${srv_linux_regsets}" = "yes"; then
294 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
295 [Define if the target supports register sets.])
297 AC_MSG_CHECKING(for PTRACE_GETREGS)
298 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
299 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
301 [gdbsrv_cv_have_ptrace_getregs=yes],
302 [gdbsrv_cv_have_ptrace_getregs=no])])
303 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
304 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
305 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
306 [Define if the target supports PTRACE_GETREGS for register ]
310 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
311 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
312 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
313 [PTRACE_GETFPXREGS;],
314 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
315 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
316 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
317 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
318 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
319 [Define if the target supports PTRACE_GETFPXREGS for extended ]
324 if test "${srv_linux_btrace}" = "yes"; then
325 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
326 [Define if the target supports branch tracing.])
329 if test "$ac_cv_header_sys_procfs_h" = yes; then
330 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
331 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
332 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
333 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
334 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
337 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
338 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
339 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
342 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
343 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
344 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
347 dnl Check for libdl, but do not add it to LIBS as only gdbserver
348 dnl needs it (and gdbreplay doesn't).
350 AC_CHECK_LIB(dl, dlopen)
356 if test "$srv_linux_thread_db" = "yes"; then
357 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
359 AC_MSG_CHECKING(for the dynamic export flag)
360 old_LDFLAGS="$LDFLAGS"
361 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
363 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
364 LDFLAGS="$LDFLAGS $RDYNAMIC"
366 [found="-Wl,--dynamic-list"
367 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
368 [RDYNAMIC="-rdynamic"
369 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
375 LDFLAGS="$old_LDFLAGS"
376 AC_MSG_RESULT($found)
378 srv_libs="-lthread_db"
381 srv_thread_depfiles="thread-db.o proc-service.o"
382 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
383 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
384 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
385 [gdbsrv_cv_have_td_version=yes],
386 [gdbsrv_cv_have_td_version=no])])
387 if test $gdbsrv_cv_have_td_version = yes; then
388 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
392 AC_ARG_WITH(libthread-db,
393 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
394 [srv_libthread_db_path="${withval}"
395 srv_libs="$srv_libthread_db_path"
398 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
399 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
402 if test "$srv_xmlfiles" != ""; then
403 srv_xmlbuiltin="xml-builtin.o"
404 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
406 tmp_xmlfiles=$srv_xmlfiles
408 for f in $tmp_xmlfiles; do
409 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
413 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs"
414 GDBSERVER_LIBS="$srv_libs"
416 dnl Check whether the target supports __sync_*_compare_and_swap.
417 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
418 gdbsrv_cv_have_sync_builtins, [
419 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
420 gdbsrv_cv_have_sync_builtins=yes,
421 gdbsrv_cv_have_sync_builtins=no)])
422 if test $gdbsrv_cv_have_sync_builtins = yes; then
423 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
424 [Define to 1 if the target supports __sync_*_compare_and_swap])
427 dnl Check for -fvisibility=hidden support in the compiler.
428 saved_cflags="$CFLAGS"
429 CFLAGS="$CFLAGS -fvisibility=hidden"
430 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
431 [gdbsrv_cv_have_visibility_hidden=yes],
432 [gdbsrv_cv_have_visibility_hidden=no])
433 CFLAGS="$saved_cflags"
435 dnl Check if we can disable the virtual address space randomization.
436 dnl The functionality of setarch -R.
437 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
438 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
439 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
440 # define ADDR_NO_RANDOMIZE 0x0040000
442 /* Test the flag could be set and stays set. */
443 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
444 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
446 AC_RUN_IFELSE([PERSONALITY_TEST],
447 [gdbsrv_cv_have_personality=true],
448 [gdbsrv_cv_have_personality=false],
449 [AC_LINK_IFELSE([PERSONALITY_TEST],
450 [gdbsrv_cv_have_personality=true],
451 [gdbsrv_cv_have_personality=false])])
452 if $gdbsrv_cv_have_personality
454 AC_DEFINE([HAVE_PERSONALITY], 1,
455 [Define if you support the personality syscall.])
462 # check whether to enable the inprocess agent
463 if test "$ipa_obj" != "" \
464 -a "$gdbsrv_cv_have_sync_builtins" = yes \
465 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
471 AC_ARG_ENABLE(inprocess-agent,
472 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
473 [case "$enableval" in
474 yes) want_ipa=true ;;
475 no) want_ipa=false ;;
476 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
478 [want_ipa=$have_ipa])
482 IPA_DEPFILES="$ipa_obj"
483 extra_libraries="$extra_libraries libinproctrace.so"
485 AC_MSG_ERROR([inprocess agent not supported for this target])
489 AC_SUBST(GDBSERVER_DEPFILES)
490 AC_SUBST(GDBSERVER_LIBS)
491 AC_SUBST(srv_xmlbuiltin)
492 AC_SUBST(srv_xmlfiles)
493 AC_SUBST(IPA_DEPFILES)
494 AC_SUBST(extra_libraries)
496 GNULIB=build-gnulib-gdbserver/import
499 if test x"$STDINT_H" != x; then
500 GNULIB_STDINT_H=$GNULIB/$STDINT_H
502 AC_SUBST(GNULIB_STDINT_H)
504 AC_CONFIG_FILES([Makefile],
505 [case x$CONFIG_HEADERS in