1 dnl Autoconf configure script for GDB server. 2 dnl Copyright (C) 2000-2024 Free Software Foundation, Inc. 3 dnl 4 dnl This file is part of GDB. 5 dnl 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. 10 dnl 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. 15 dnl 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/>. 18 19 dnl Process this file with autoconf to produce a configure script. 20 21 AC_INIT 22 AC_CONFIG_MACRO_DIRS([../config]) 23 AC_CONFIG_SRCDIR([server.cc]) 24 AC_CONFIG_HEADERS(config.h:config.in, [echo > stamp-h]) 25 26 AM_MAINTAINER_MODE 27 28 AC_PROG_CC 29 AC_PROG_CXX 30 AC_USE_SYSTEM_EXTENSIONS 31 AC_SYS_LARGEFILE 32 AM_PROG_INSTALL_STRIP 33 34 # Set build, build_cpu, build_vendor and build_os. 35 AC_CANONICAL_BUILD 36 37 # Set host, host_cpu, host_vendor, and host_os. 38 AC_CANONICAL_HOST 39 40 # Set target, target_cpu, target_vendor, and target_os. 41 AC_CANONICAL_TARGET 42 43 AC_PROG_INSTALL 44 AC_CHECK_TOOL(AR, ar) 45 AC_PROG_RANLIB 46 47 AC_ARG_PROGRAM 48 49 # We require a C++17 compiler. Check if one is available, and if 50 # necessary, set CXX_DIALECT to some -std=xxx switch. 51 AX_CXX_COMPILE_STDCXX(17, , mandatory) 52 53 AC_HEADER_STDC 54 55 GDB_AC_COMMON 56 # This is set by GDB_AC_COMMON. 57 AC_SUBST(WIN32APILIBS) 58 59 GDB_AC_SELFTEST 60 61 ACX_NONCANONICAL_TARGET 62 ACX_NONCANONICAL_HOST 63 64 # Dependency checking. 65 ZW_CREATE_DEPDIR 66 67 dnl Set up for gettext. 68 ZW_GNU_GETTEXT_SISTER_DIR 69 70 # Create sub-directories for objects and dependencies. 71 CONFIG_SRC_SUBDIR="arch gdbsupport nat target" 72 AC_SUBST(CONFIG_SRC_SUBDIR) 73 74 AC_CONFIG_COMMANDS([gdbdepdir],[ 75 for subdir in ${CONFIG_SRC_SUBDIR} 76 do 77 $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR 78 done], 79 [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"]) 80 81 ZW_PROG_COMPILER_DEPENDENCIES([CC]) 82 83 AC_CHECK_HEADERS([ \ 84 arpa/inet.h \ 85 fcntl.h \ 86 linux/elf.h \ 87 netdb.h \ 88 netinet/in.h \ 89 netinet/tcp.h \ 90 signal.h \ 91 string.h \ 92 sys/file.h \ 93 sys/ioctl.h \ 94 sys/procfs.h \ 95 sys/reg.h \ 96 sys/socket.h \ 97 termios.h \ 98 ws2tcpip.h \ 99 ]) 100 101 AC_FUNC_FORK 102 AC_CHECK_FUNCS([ \ 103 pread \ 104 pread64 \ 105 pwrite \ 106 ]) 107 108 # Check the return and argument types of ptrace. 109 GDB_AC_PTRACE 110 111 # Check for UST 112 ustlibs="" 113 ustinc="" 114 115 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]) 120 121 case $with_ust in 122 no) 123 ustlibs= 124 ustinc= 125 ;; 126 "" | yes) 127 ustlibs=" -lust " 128 ustinc="" 129 ;; 130 *) 131 ustlibs="-L$with_ust/lib -lust" 132 ustinc="-I$with_ust/include " 133 ;; 134 esac 135 if test "x$with_ust_include" != x; then 136 ustinc="-I$with_ust_include " 137 fi 138 if test "x$with_ust_lib" != x; then 139 ustlibs="-L$with_ust_lib -lust" 140 fi 141 142 if test "x$with_ust" != "xno"; then 143 saved_CFLAGS="$CFLAGS" 144 CFLAGS="$CFLAGS $ustinc" 145 AC_MSG_CHECKING([for ust]) 146 AC_COMPILE_IFELSE( 147 [AC_LANG_PROGRAM( 148 [ 149 #define CONFIG_UST_GDB_INTEGRATION 150 #include <ust/ust.h> 151 ], 152 [] 153 )], 154 [AC_MSG_RESULT([yes]); 155 AC_DEFINE(HAVE_UST, 1, [Define if UST is available])], 156 [AC_MSG_RESULT([no]) 157 ustlibs= ; ustinc= ] 158 ) 159 CFLAGS="$saved_CFLAGS" 160 fi 161 162 # Flags needed for UST 163 AC_SUBST(ustlibs) 164 AC_SUBST(ustinc) 165 166 AM_GDB_COMPILER_TYPE 167 AM_GDB_WARNINGS 168 169 dnl dladdr is glibc-specific. It is used by thread-db.c but only for 170 dnl debugging messages. It lives in -ldl which is handled below so we don't 171 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily 172 dnl augment LIBS. 173 old_LIBS="$LIBS" 174 LIBS="$LIBS -ldl" 175 AC_CHECK_FUNCS(dladdr) 176 LIBS="$old_LIBS" 177 178 libiberty_INIT 179 180 AC_CHECK_DECLS([perror, vasprintf, vsnprintf]) 181 182 AC_CHECK_TYPES(socklen_t, [], [], 183 [#include <sys/types.h> 184 #if HAVE_SYS_SOCKET_H 185 # include <sys/socket.h> 186 #elif HAVE_WS2TCPIP_H 187 # include <ws2tcpip.h> 188 #endif 189 ]) 190 191 case "${target}" in 192 *-android*) 193 # Starting with NDK version 9, <elf.h> actually includes definitions 194 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes 195 # <sys/exec_elf.h> which defines some of the ELF types incorrectly, 196 # leading to conflicts with the defintions from <linux/elf.h>. 197 # This makes it impossible for us to include both <elf.h> and 198 # <linux/elf.h>, which means that, in practice, we do not have 199 # access to Elf32_auxv_t and Elf64_auxv_t on this platform. 200 # Therefore, do not try to auto-detect availability, as it would 201 # get it wrong on this platform. 202 ;; 203 *) 204 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [], 205 #include <elf.h> 206 ) 207 esac 208 209 ACX_PKGVERSION([GDB]) 210 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/]) 211 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description]) 212 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address]) 213 214 # Check for various supplementary target information (beyond the 215 # triplet) which might affect the choices in configure.srv. 216 case "${target}" in 217 changequote(,)dnl 218 i[34567]86-*-linux*) 219 changequote([,])dnl 220 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64], 221 [save_CPPFLAGS="$CPPFLAGS" 222 CPPFLAGS="$CPPFLAGS $CFLAGS" 223 AC_EGREP_CPP([got it], [ 224 #if __x86_64__ 225 got it 226 #endif 227 ], [gdb_cv_i386_is_x86_64=yes], 228 [gdb_cv_i386_is_x86_64=no]) 229 CPPFLAGS="$save_CPPFLAGS"]) 230 ;; 231 232 x86_64-*-linux*) 233 AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32], 234 [save_CPPFLAGS="$CPPFLAGS" 235 CPPFLAGS="$CPPFLAGS $CFLAGS" 236 AC_EGREP_CPP([got it], [ 237 #if __x86_64__ && __ILP32__ 238 got it 239 #endif 240 ], [gdb_cv_x86_is_x32=yes], 241 [gdb_cv_x86_is_x32=no]) 242 CPPFLAGS="$save_CPPFLAGS"]) 243 ;; 244 245 m68k-*-*) 246 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire], 247 [save_CPPFLAGS="$CPPFLAGS" 248 CPPFLAGS="$CPPFLAGS $CFLAGS" 249 AC_EGREP_CPP([got it], [ 250 #ifdef __mcoldfire__ 251 got it 252 #endif 253 ], [gdb_cv_m68k_is_coldfire=yes], 254 [gdb_cv_m68k_is_coldfire=no]) 255 CPPFLAGS="$save_CPPFLAGS"]) 256 ;; 257 esac 258 259 . ${srcdir}/configure.srv 260 261 if test "${srv_mingwce}" = "yes"; then 262 LIBS="$LIBS -lws2" 263 elif test "${srv_mingw}" = "yes"; then 264 # WIN32APILIBS is set by GDB_AC_COMMON. 265 LIBS="$LIBS $WIN32APILIBS" 266 fi 267 268 if test "${srv_linux_usrregs}" = "yes"; then 269 AC_DEFINE(HAVE_LINUX_USRREGS, 1, 270 [Define if the target supports PTRACE_PEEKUSR for register ] 271 [access.]) 272 fi 273 274 if test "${srv_linux_regsets}" = "yes"; then 275 AC_DEFINE(HAVE_LINUX_REGSETS, 1, 276 [Define if the target supports register sets.]) 277 278 AC_MSG_CHECKING(for PTRACE_GETREGS) 279 AC_CACHE_VAL( 280 [gdbsrv_cv_have_ptrace_getregs], 281 [AC_COMPILE_IFELSE( 282 [AC_LANG_PROGRAM([#include <sys/ptrace.h>], [PTRACE_GETREGS;])], 283 [gdbsrv_cv_have_ptrace_getregs=yes], 284 [gdbsrv_cv_have_ptrace_getregs=no] 285 )] 286 ) 287 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs) 288 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then 289 AC_DEFINE(HAVE_PTRACE_GETREGS, 1, 290 [Define if the target supports PTRACE_GETREGS for register ] 291 [access.]) 292 fi 293 294 AC_MSG_CHECKING(for PTRACE_GETFPXREGS) 295 AC_CACHE_VAL( 296 [gdbsrv_cv_have_ptrace_getfpxregs], 297 [AC_COMPILE_IFELSE( 298 [AC_LANG_PROGRAM([#include <sys/ptrace.h>], [PTRACE_GETFPXREGS;])], 299 [gdbsrv_cv_have_ptrace_getfpxregs=yes], 300 [gdbsrv_cv_have_ptrace_getfpxregs=no] 301 )] 302 ) 303 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs) 304 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then 305 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1, 306 [Define if the target supports PTRACE_GETFPXREGS for extended ] 307 [register access.]) 308 fi 309 fi 310 311 if test "${srv_linux_btrace}" = "yes"; then 312 AC_DEFINE(HAVE_LINUX_BTRACE, 1, 313 [Define if the target supports branch tracing.]) 314 fi 315 316 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h. 317 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then 318 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t) 319 fi 320 321 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h. 322 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then 323 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t) 324 fi 325 326 dnl Check for libdl, but do not add it to LIBS as only gdbserver 327 dnl needs it (and gdbreplay doesn't). 328 old_LIBS="$LIBS" 329 AC_CHECK_LIB(dl, dlopen) 330 LIBS="$old_LIBS" 331 332 srv_thread_depfiles= 333 srv_libs= 334 335 if test "$srv_linux_thread_db" = "yes"; then 336 if test "$ac_cv_lib_dl_dlopen" = "yes"; then 337 srv_libs="-ldl" 338 AC_MSG_CHECKING(for the dynamic export flag) 339 old_LDFLAGS="$LDFLAGS" 340 # Older GNU ld supports --export-dynamic but --dynamic-list may not be 341 # supported there. 342 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list" 343 LDFLAGS="$LDFLAGS $RDYNAMIC" 344 AC_LINK_IFELSE( 345 [AC_LANG_PROGRAM([],[])], 346 [found="-Wl,--dynamic-list" 347 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'], 348 [RDYNAMIC="-rdynamic" 349 LDFLAGS="$old_LDFLAGS $RDYNAMIC" 350 AC_LINK_IFELSE( 351 [AC_LANG_PROGRAM([], [])], 352 [found="-rdynamic"], 353 [found="no" 354 RDYNAMIC=""] 355 )] 356 ) 357 AC_SUBST(RDYNAMIC) 358 LDFLAGS="$old_LDFLAGS" 359 AC_MSG_RESULT($found) 360 else 361 srv_libs="-lthread_db" 362 fi 363 364 srv_thread_depfiles="thread-db.o proc-service.o" 365 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.]) 366 AC_CACHE_CHECK( 367 [for TD_VERSION], 368 [gdbsrv_cv_have_td_version], 369 [AC_COMPILE_IFELSE( 370 [AC_LANG_PROGRAM([#include <thread_db.h>], [TD_VERSION;])], 371 [gdbsrv_cv_have_td_version=yes], 372 [gdbsrv_cv_have_td_version=no] 373 )] 374 ) 375 if test "$gdbsrv_cv_have_td_version" = yes; then 376 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.]) 377 fi 378 fi 379 380 AC_ARG_WITH(libthread-db, 381 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]), 382 [srv_libthread_db_path="${withval}" 383 srv_libs="$srv_libthread_db_path" 384 ]) 385 386 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then 387 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.]) 388 fi 389 390 if test "$srv_xmlfiles" != ""; then 391 srv_xmlbuiltin="xml-builtin.o" 392 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.]) 393 394 tmp_xmlfiles=$srv_xmlfiles 395 srv_xmlfiles="" 396 for f in $tmp_xmlfiles; do 397 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f" 398 done 399 fi 400 401 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_thread_depfiles" 402 GDBSERVER_LIBS="$srv_libs" 403 404 dnl Check whether the target supports __sync_*_compare_and_swap. 405 AC_CACHE_CHECK( 406 [whether the target supports __sync_*_compare_and_swap], 407 [gdbsrv_cv_have_sync_builtins], 408 [AC_LINK_IFELSE( 409 [AC_LANG_PROGRAM( 410 [], 411 [int foo, bar; 412 bar = __sync_val_compare_and_swap(&foo, 0, 1);] 413 )], 414 [gdbsrv_cv_have_sync_builtins=yes], 415 [gdbsrv_cv_have_sync_builtins=no] 416 )] 417 ) 418 if test "$gdbsrv_cv_have_sync_builtins" = yes; then 419 AC_DEFINE(HAVE_SYNC_BUILTINS, 1, 420 [Define to 1 if the target supports __sync_*_compare_and_swap]) 421 fi 422 423 dnl Check for -fvisibility=hidden support in the compiler. 424 saved_cflags="$CFLAGS" 425 CFLAGS="$CFLAGS -fvisibility=hidden" 426 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], 427 [gdbsrv_cv_have_visibility_hidden=yes], 428 [gdbsrv_cv_have_visibility_hidden=no]) 429 CFLAGS="$saved_cflags" 430 431 IPA_DEPFILES="" 432 extra_libraries="" 433 434 # check whether to enable the inprocess agent 435 if test "$ipa_obj" != "" \ 436 -a "$gdbsrv_cv_have_sync_builtins" = yes \ 437 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then 438 have_ipa=true 439 else 440 have_ipa=false 441 fi 442 443 AC_ARG_ENABLE(inprocess-agent, 444 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]), 445 [case "$enableval" in 446 yes) want_ipa=true ;; 447 no) want_ipa=false ;; 448 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;; 449 esac], 450 [want_ipa=$have_ipa]) 451 452 if $want_ipa ; then 453 if $have_ipa ; then 454 IPA_DEPFILES="$ipa_obj" 455 extra_libraries="$extra_libraries libinproctrace.so" 456 else 457 AC_MSG_ERROR([inprocess agent not supported for this target]) 458 fi 459 fi 460 461 AC_SUBST(GDBSERVER_DEPFILES) 462 AC_SUBST(GDBSERVER_LIBS) 463 AC_SUBST(srv_xmlbuiltin) 464 AC_SUBST(srv_xmlfiles) 465 AC_SUBST(IPA_DEPFILES) 466 AC_SUBST(extra_libraries) 467 468 GNULIB=../gnulib/import 469 470 GNULIB_STDINT_H= 471 if test x"$STDINT_H" != x; then 472 GNULIB_STDINT_H=$GNULIB/$STDINT_H 473 fi 474 AC_SUBST(GNULIB_STDINT_H) 475 476 # Check for libiconv. It is a requirement for Linux hosts, and others hosts 477 # don't use it at all. Define MAYBE_LIBICONV only if the host is Linux. 478 AM_ICONV 479 MAYBE_LIBICONV= 480 case "$host" in 481 *linux*) 482 if test "$am_cv_func_iconv" != yes; then 483 AC_MSG_ERROR([could not find libiconv (required for host $host)]) 484 fi 485 486 MAYBE_LIBICONV="$LIBICONV" 487 ;; 488 esac 489 490 AC_SUBST(MAYBE_LIBICONV) 491 492 AC_CONFIG_FILES([Makefile]) 493 494 AC_OUTPUT 495
Indexes created Wed Mar 04 15:26:31 UTC 2026