1dnl Autoconf configure script for GDB server. 2dnl Copyright (C) 2000-2020 Free Software Foundation, Inc. 3dnl 4dnl This file is part of GDB. 5dnl 6dnl This program is free software; you can redistribute it and/or modify 7dnl it under the terms of the GNU General Public License as published by 8dnl the Free Software Foundation; either version 3 of the License, or 9dnl (at your option) any later version. 10dnl 11dnl This program is distributed in the hope that it will be useful, 12dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 13dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14dnl GNU General Public License for more details. 15dnl 16dnl You should have received a copy of the GNU General Public License 17dnl along with this program. If not, see <http://www.gnu.org/licenses/>. 18 19dnl Process this file with autoconf to produce a configure script. 20 21AC_INIT(server.cc) 22AC_CONFIG_HEADERS(config.h:config.in, [echo > stamp-h]) 23 24AM_MAINTAINER_MODE 25 26AC_PROG_CC 27AC_PROG_CXX 28AC_GNU_SOURCE 29AC_SYS_LARGEFILE 30AM_PROG_INSTALL_STRIP 31 32AC_CANONICAL_SYSTEM 33 34AC_PROG_INSTALL 35AC_CHECK_TOOL(AR, ar) 36AC_PROG_RANLIB 37 38AC_ARG_PROGRAM 39 40# We require a C++11 compiler. Check if one is available, and if 41# necessary, set CXX_DIALECT to some -std=xxx switch. 42AX_CXX_COMPILE_STDCXX(11, , mandatory) 43 44AC_HEADER_STDC 45 46GDB_AC_COMMON 47# This is set by GDB_AC_COMMON. 48AC_SUBST(WIN32APILIBS) 49 50GDB_AC_SELFTEST 51 52ACX_NONCANONICAL_TARGET 53ACX_NONCANONICAL_HOST 54 55# Dependency checking. 56ZW_CREATE_DEPDIR 57 58dnl Set up for gettext. 59ZW_GNU_GETTEXT_SISTER_DIR 60 61# Create sub-directories for objects and dependencies. 62CONFIG_SRC_SUBDIR="arch gdbsupport nat target" 63AC_SUBST(CONFIG_SRC_SUBDIR) 64 65AC_CONFIG_COMMANDS([gdbdepdir],[ 66 for subdir in ${CONFIG_SRC_SUBDIR} 67 do 68 $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR 69 done], 70 [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"]) 71 72ZW_PROG_COMPILER_DEPENDENCIES([CC]) 73 74AC_CHECK_HEADERS(termios.h sys/reg.h string.h dnl 75 sys/procfs.h linux/elf.h dnl 76 fcntl.h signal.h sys/file.h dnl 77 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl 78 netinet/tcp.h arpa/inet.h ws2tcpip.h) 79AC_FUNC_FORK 80AC_CHECK_FUNCS(pread pwrite pread64) 81 82# Check the return and argument types of ptrace. 83GDB_AC_PTRACE 84 85# Check for UST 86ustlibs="" 87ustinc="" 88 89AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package 90 Equivalent to --with-ust-include=PATH/include 91 plus --with-ust-lib=PATH/lib]) 92AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files]) 93AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library]) 94 95case $with_ust in 96 no) 97 ustlibs= 98 ustinc= 99 ;; 100 "" | yes) 101 ustlibs=" -lust " 102 ustinc="" 103 ;; 104 *) 105 ustlibs="-L$with_ust/lib -lust" 106 ustinc="-I$with_ust/include " 107 ;; 108esac 109if test "x$with_ust_include" != x; then 110 ustinc="-I$with_ust_include " 111fi 112if test "x$with_ust_lib" != x; then 113 ustlibs="-L$with_ust_lib -lust" 114fi 115 116if test "x$with_ust" != "xno"; then 117 saved_CFLAGS="$CFLAGS" 118 CFLAGS="$CFLAGS $ustinc" 119 AC_MSG_CHECKING([for ust]) 120 AC_TRY_COMPILE([ 121#define CONFIG_UST_GDB_INTEGRATION 122#include <ust/ust.h> 123 ],[], 124 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])], 125 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ]) 126 CFLAGS="$saved_CFLAGS" 127fi 128 129# Flags needed for UST 130AC_SUBST(ustlibs) 131AC_SUBST(ustinc) 132 133AM_GDB_WARNINGS 134 135dnl dladdr is glibc-specific. It is used by thread-db.c but only for 136dnl debugging messages. It lives in -ldl which is handled below so we don't 137dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily 138dnl augment LIBS. 139old_LIBS="$LIBS" 140LIBS="$LIBS -ldl" 141AC_CHECK_FUNCS(dladdr) 142LIBS="$old_LIBS" 143 144libiberty_INIT 145 146AC_CHECK_DECLS([perror, vasprintf, vsnprintf]) 147 148AC_CHECK_TYPES(socklen_t, [], [], 149[#include <sys/types.h> 150#if HAVE_SYS_SOCKET_H 151# include <sys/socket.h> 152#elif HAVE_WS2TCPIP_H 153# include <ws2tcpip.h> 154#endif 155]) 156 157case "${target}" in 158 *-android*) 159 # Starting with NDK version 9, <elf.h> actually includes definitions 160 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes 161 # <sys/exec_elf.h> which defines some of the ELF types incorrectly, 162 # leading to conflicts with the defintions from <linux/elf.h>. 163 # This makes it impossible for us to include both <elf.h> and 164 # <linux/elf.h>, which means that, in practice, we do not have 165 # access to Elf32_auxv_t and Elf64_auxv_t on this platform. 166 # Therefore, do not try to auto-detect availability, as it would 167 # get it wrong on this platform. 168 ;; 169 *) 170 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [], 171 #include <elf.h> 172 ) 173esac 174 175ACX_PKGVERSION([GDB]) 176ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/]) 177AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description]) 178AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address]) 179 180# Check for various supplementary target information (beyond the 181# triplet) which might affect the choices in configure.srv. 182case "${target}" in 183changequote(,)dnl 184 i[34567]86-*-linux*) 185changequote([,])dnl 186 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64], 187 [save_CPPFLAGS="$CPPFLAGS" 188 CPPFLAGS="$CPPFLAGS $CFLAGS" 189 AC_EGREP_CPP([got it], [ 190#if __x86_64__ 191got it 192#endif 193 ], [gdb_cv_i386_is_x86_64=yes], 194 [gdb_cv_i386_is_x86_64=no]) 195 CPPFLAGS="$save_CPPFLAGS"]) 196 ;; 197 198 x86_64-*-linux*) 199 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32], 200 [save_CPPFLAGS="$CPPFLAGS" 201 CPPFLAGS="$CPPFLAGS $CFLAGS" 202 AC_EGREP_CPP([got it], [ 203#if __x86_64__ && __ILP32__ 204got it 205#endif 206 ], [gdb_cv_x86_is_x32=yes], 207 [gdb_cv_x86_is_x32=no]) 208 CPPFLAGS="$save_CPPFLAGS"]) 209 ;; 210 211 m68k-*-*) 212 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire], 213 [save_CPPFLAGS="$CPPFLAGS" 214 CPPFLAGS="$CPPFLAGS $CFLAGS" 215 AC_EGREP_CPP([got it], [ 216#ifdef __mcoldfire__ 217got it 218#endif 219 ], [gdb_cv_m68k_is_coldfire=yes], 220 [gdb_cv_m68k_is_coldfire=no]) 221 CPPFLAGS="$save_CPPFLAGS"]) 222 ;; 223esac 224 225. ${srcdir}/configure.srv 226 227if test "${srv_mingwce}" = "yes"; then 228 LIBS="$LIBS -lws2" 229elif test "${srv_mingw}" = "yes"; then 230 # WIN32APILIBS is set by GDB_AC_COMMON. 231 LIBS="$LIBS $WIN32APILIBS" 232fi 233 234if test "${srv_linux_usrregs}" = "yes"; then 235 AC_DEFINE(HAVE_LINUX_USRREGS, 1, 236 [Define if the target supports PTRACE_PEEKUSR for register ] 237 [access.]) 238fi 239 240if test "${srv_linux_regsets}" = "yes"; then 241 AC_DEFINE(HAVE_LINUX_REGSETS, 1, 242 [Define if the target supports register sets.]) 243 244 AC_MSG_CHECKING(for PTRACE_GETREGS) 245 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs, 246 [AC_TRY_COMPILE([#include <sys/ptrace.h>], 247 [PTRACE_GETREGS;], 248 [gdbsrv_cv_have_ptrace_getregs=yes], 249 [gdbsrv_cv_have_ptrace_getregs=no])]) 250 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs) 251 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then 252 AC_DEFINE(HAVE_PTRACE_GETREGS, 1, 253 [Define if the target supports PTRACE_GETREGS for register ] 254 [access.]) 255 fi 256 257 AC_MSG_CHECKING(for PTRACE_GETFPXREGS) 258 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs, 259 [AC_TRY_COMPILE([#include <sys/ptrace.h>], 260 [PTRACE_GETFPXREGS;], 261 [gdbsrv_cv_have_ptrace_getfpxregs=yes], 262 [gdbsrv_cv_have_ptrace_getfpxregs=no])]) 263 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs) 264 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then 265 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1, 266 [Define if the target supports PTRACE_GETFPXREGS for extended ] 267 [register access.]) 268 fi 269fi 270 271if test "${srv_linux_btrace}" = "yes"; then 272 AC_DEFINE(HAVE_LINUX_BTRACE, 1, 273 [Define if the target supports branch tracing.]) 274fi 275 276dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h. 277if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then 278 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t) 279fi 280 281dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h. 282if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then 283 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t) 284fi 285 286dnl Check for libdl, but do not add it to LIBS as only gdbserver 287dnl needs it (and gdbreplay doesn't). 288old_LIBS="$LIBS" 289AC_CHECK_LIB(dl, dlopen) 290LIBS="$old_LIBS" 291 292srv_thread_depfiles= 293srv_libs= 294 295if test "$srv_linux_thread_db" = "yes"; then 296 if test "$ac_cv_lib_dl_dlopen" = "yes"; then 297 srv_libs="-ldl" 298 AC_MSG_CHECKING(for the dynamic export flag) 299 old_LDFLAGS="$LDFLAGS" 300 # Older GNU ld supports --export-dynamic but --dynamic-list may not be 301 # supported there. 302 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list" 303 LDFLAGS="$LDFLAGS $RDYNAMIC" 304 AC_TRY_LINK([], [], 305 [found="-Wl,--dynamic-list" 306 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'], 307 [RDYNAMIC="-rdynamic" 308 LDFLAGS="$old_LDFLAGS $RDYNAMIC" 309 AC_TRY_LINK([], [], 310 [found="-rdynamic"], 311 [found="no" 312 RDYNAMIC=""])]) 313 AC_SUBST(RDYNAMIC) 314 LDFLAGS="$old_LDFLAGS" 315 AC_MSG_RESULT($found) 316 else 317 srv_libs="-lthread_db" 318 fi 319 320 srv_thread_depfiles="thread-db.o proc-service.o" 321 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.]) 322 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version, 323 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;], 324 [gdbsrv_cv_have_td_version=yes], 325 [gdbsrv_cv_have_td_version=no])]) 326 if test "$gdbsrv_cv_have_td_version" = yes; then 327 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.]) 328 fi 329fi 330 331AC_ARG_WITH(libthread-db, 332AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]), 333[srv_libthread_db_path="${withval}" 334 srv_libs="$srv_libthread_db_path" 335]) 336 337if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then 338 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.]) 339fi 340 341if test "$srv_xmlfiles" != ""; then 342 srv_xmlbuiltin="xml-builtin.o" 343 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.]) 344 345 tmp_xmlfiles=$srv_xmlfiles 346 srv_xmlfiles="" 347 for f in $tmp_xmlfiles; do 348 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f" 349 done 350fi 351 352GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles" 353GDBSERVER_LIBS="$srv_libs" 354 355dnl Check whether the target supports __sync_*_compare_and_swap. 356AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap], 357 gdbsrv_cv_have_sync_builtins, [ 358AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);], 359 gdbsrv_cv_have_sync_builtins=yes, 360 gdbsrv_cv_have_sync_builtins=no)]) 361if test "$gdbsrv_cv_have_sync_builtins" = yes; then 362 AC_DEFINE(HAVE_SYNC_BUILTINS, 1, 363 [Define to 1 if the target supports __sync_*_compare_and_swap]) 364fi 365 366dnl Check for -fvisibility=hidden support in the compiler. 367saved_cflags="$CFLAGS" 368CFLAGS="$CFLAGS -fvisibility=hidden" 369AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], 370 [gdbsrv_cv_have_visibility_hidden=yes], 371 [gdbsrv_cv_have_visibility_hidden=no]) 372CFLAGS="$saved_cflags" 373 374IPA_DEPFILES="" 375extra_libraries="" 376 377# check whether to enable the inprocess agent 378if test "$ipa_obj" != "" \ 379 -a "$gdbsrv_cv_have_sync_builtins" = yes \ 380 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then 381 have_ipa=true 382else 383 have_ipa=false 384fi 385 386AC_ARG_ENABLE(inprocess-agent, 387AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]), 388[case "$enableval" in 389 yes) want_ipa=true ;; 390 no) want_ipa=false ;; 391 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;; 392esac], 393[want_ipa=$have_ipa]) 394 395if $want_ipa ; then 396 if $have_ipa ; then 397 IPA_DEPFILES="$ipa_obj" 398 extra_libraries="$extra_libraries libinproctrace.so" 399 else 400 AC_MSG_ERROR([inprocess agent not supported for this target]) 401 fi 402fi 403 404AC_SUBST(GDBSERVER_DEPFILES) 405AC_SUBST(GDBSERVER_LIBS) 406AC_SUBST(srv_xmlbuiltin) 407AC_SUBST(srv_xmlfiles) 408AC_SUBST(IPA_DEPFILES) 409AC_SUBST(extra_libraries) 410 411GNULIB=../gnulib/import 412 413GNULIB_STDINT_H= 414if test x"$STDINT_H" != x; then 415 GNULIB_STDINT_H=$GNULIB/$STDINT_H 416fi 417AC_SUBST(GNULIB_STDINT_H) 418 419AC_CONFIG_FILES([Makefile]) 420 421AC_OUTPUT 422