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 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
167 # Older amd64 Linux's don't have the fs_base and gs_base members of
168 # `struct user_regs_struct'.
169 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
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 # Add in the common host objects.
249 . ${srcdir}/../common/common.host
250 srv_host_obs="$common_host_obs"
252 if test "${srv_mingwce}" = "yes"; then
254 elif test "${srv_mingw}" = "yes"; then
255 LIBS="$LIBS -lws2_32"
256 elif test "${srv_qnx}" = "yes"; then
257 LIBS="$LIBS -lsocket"
258 elif test "${srv_lynxos}" = "yes"; then
259 LIBS="$LIBS -lnetinet"
262 if test "${srv_mingw}" = "yes"; then
263 AC_DEFINE(USE_WIN32API, 1,
264 [Define if we should use the Windows API, instead of the
265 POSIX API. On Windows, we use the Windows API when
266 building for MinGW, but the POSIX API when building
270 if test "${srv_linux_usrregs}" = "yes"; then
271 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
272 [Define if the target supports PTRACE_PEEKUSR for register ]
276 if test "${srv_linux_regsets}" = "yes"; then
277 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
278 [Define if the target supports register sets.])
280 AC_MSG_CHECKING(for PTRACE_GETREGS)
281 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
282 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
284 [gdbsrv_cv_have_ptrace_getregs=yes],
285 [gdbsrv_cv_have_ptrace_getregs=no])])
286 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
287 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
288 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
289 [Define if the target supports PTRACE_GETREGS for register ]
293 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
294 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
295 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
296 [PTRACE_GETFPXREGS;],
297 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
298 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
299 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
300 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
301 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
302 [Define if the target supports PTRACE_GETFPXREGS for extended ]
307 if test "${srv_linux_btrace}" = "yes"; then
308 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
309 [Define if the target supports branch tracing.])
312 if test "$ac_cv_header_sys_procfs_h" = yes; then
313 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
314 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
315 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
316 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
317 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
320 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
321 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
322 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
325 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
326 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
327 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
330 dnl Check for libdl, but do not add it to LIBS as only gdbserver
331 dnl needs it (and gdbreplay doesn't).
333 AC_CHECK_LIB(dl, dlopen)
339 if test "$srv_linux_thread_db" = "yes"; then
340 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
342 AC_MSG_CHECKING(for the dynamic export flag)
343 old_LDFLAGS="$LDFLAGS"
344 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
346 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
347 LDFLAGS="$LDFLAGS $RDYNAMIC"
349 [found="-Wl,--dynamic-list"
350 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
351 [RDYNAMIC="-rdynamic"
352 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
358 LDFLAGS="$old_LDFLAGS"
359 AC_MSG_RESULT($found)
361 srv_libs="-lthread_db"
364 srv_thread_depfiles="thread-db.o proc-service.o"
365 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
366 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
367 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
368 [gdbsrv_cv_have_td_version=yes],
369 [gdbsrv_cv_have_td_version=no])])
370 if test $gdbsrv_cv_have_td_version = yes; then
371 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
375 AC_ARG_WITH(libthread-db,
376 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
377 [srv_libthread_db_path="${withval}"
378 srv_libs="$srv_libthread_db_path"
381 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
382 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
385 if test "$srv_xmlfiles" != ""; then
386 srv_xmlbuiltin="xml-builtin.o"
387 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
389 tmp_xmlfiles=$srv_xmlfiles
391 for f in $tmp_xmlfiles; do
392 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
396 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs"
397 GDBSERVER_LIBS="$srv_libs"
399 dnl Check whether the target supports __sync_*_compare_and_swap.
400 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
401 gdbsrv_cv_have_sync_builtins, [
402 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
403 gdbsrv_cv_have_sync_builtins=yes,
404 gdbsrv_cv_have_sync_builtins=no)])
405 if test $gdbsrv_cv_have_sync_builtins = yes; then
406 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
407 [Define to 1 if the target supports __sync_*_compare_and_swap])
410 dnl Check for -fvisibility=hidden support in the compiler.
411 saved_cflags="$CFLAGS"
412 CFLAGS="$CFLAGS -fvisibility=hidden"
413 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
414 [gdbsrv_cv_have_visibility_hidden=yes],
415 [gdbsrv_cv_have_visibility_hidden=no])
416 CFLAGS="$saved_cflags"
418 dnl Check if we can disable the virtual address space randomization.
419 dnl The functionality of setarch -R.
420 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
421 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
422 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
423 # define ADDR_NO_RANDOMIZE 0x0040000
425 /* Test the flag could be set and stays set. */
426 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
427 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
429 AC_RUN_IFELSE([PERSONALITY_TEST],
430 [gdbsrv_cv_have_personality=true],
431 [gdbsrv_cv_have_personality=false],
432 [AC_LINK_IFELSE([PERSONALITY_TEST],
433 [gdbsrv_cv_have_personality=true],
434 [gdbsrv_cv_have_personality=false])])
435 if $gdbsrv_cv_have_personality
437 AC_DEFINE([HAVE_PERSONALITY], 1,
438 [Define if you support the personality syscall.])
445 # check whether to enable the inprocess agent
446 if test "$ipa_obj" != "" \
447 -a "$gdbsrv_cv_have_sync_builtins" = yes \
448 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
454 AC_ARG_ENABLE(inprocess-agent,
455 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
456 [case "$enableval" in
457 yes) want_ipa=true ;;
458 no) want_ipa=false ;;
459 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
461 [want_ipa=$have_ipa])
465 IPA_DEPFILES="$ipa_obj"
466 extra_libraries="$extra_libraries libinproctrace.so"
468 AC_MSG_ERROR([inprocess agent not supported for this target])
472 AC_SUBST(GDBSERVER_DEPFILES)
473 AC_SUBST(GDBSERVER_LIBS)
474 AC_SUBST(srv_xmlbuiltin)
475 AC_SUBST(srv_xmlfiles)
476 AC_SUBST(IPA_DEPFILES)
477 AC_SUBST(extra_libraries)
479 GNULIB=build-gnulib-gdbserver/import
482 if test x"$STDINT_H" != x; then
483 GNULIB_STDINT_H=$GNULIB/$STDINT_H
485 AC_SUBST(GNULIB_STDINT_H)
487 AC_CONFIG_FILES([Makefile],
488 [case x$CONFIG_HEADERS in