1dnl Autoconf configure script for GDB server. 2dnl Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 3dnl 2010, 2011 Free Software Foundation, Inc. 4dnl 5dnl This file is part of GDB. 6dnl 7dnl This program is free software; you can redistribute it and/or modify 8dnl it under the terms of the GNU General Public License as published by 9dnl the Free Software Foundation; either version 3 of the License, or 10dnl (at your option) any later version. 11dnl 12dnl This program is distributed in the hope that it will be useful, 13dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 14dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15dnl GNU General Public License for more details. 16dnl 17dnl You should have received a copy of the GNU General Public License 18dnl along with this program. If not, see <http://www.gnu.org/licenses/>. 19 20dnl Process this file with autoconf to produce a configure script. 21 22AC_PREREQ(2.59)dnl 23 24AC_INIT(server.c) 25AC_CONFIG_HEADER(config.h:config.in) 26AC_CONFIG_LIBOBJ_DIR(../gnulib) 27 28AC_PROG_CC 29AC_GNU_SOURCE 30 31AC_CANONICAL_SYSTEM 32 33AC_PROG_INSTALL 34 35AC_ARG_PROGRAM 36 37AC_HEADER_STDC 38 39AC_FUNC_ALLOCA 40AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl 41 proc_service.h sys/procfs.h thread_db.h linux/elf.h dnl 42 stdlib.h unistd.h dnl 43 errno.h fcntl.h signal.h sys/file.h malloc.h dnl 44 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl 45 netinet/tcp.h arpa/inet.h sys/wait.h) 46AC_CHECK_FUNCS(pread pwrite pread64) 47AC_REPLACE_FUNCS(memmem vasprintf vsnprintf) 48 49# Check for UST 50ustlibs="" 51ustinc="" 52 53AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package 54 Equivalent to --with-ust-include=PATH/include 55 plus --with-ust-lib=PATH/lib]) 56AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files]) 57AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library]) 58 59case $with_ust in 60 no) 61 ustlibs= 62 ustinc= 63 ;; 64 "" | yes) 65 ustlibs=" -lust " 66 ustinc="" 67 ;; 68 *) 69 ustlibs="-L$with_ust/lib -lust" 70 ustinc="-I$with_ust/include " 71 ;; 72esac 73if test "x$with_ust_include" != x; then 74 ustinc="-I$with_ust_include " 75fi 76if test "x$with_ust_lib" != x; then 77 ustlibs="-L$with_ust_lib -lust" 78fi 79 80if test "x$with_ust" != "xno"; then 81 saved_CFLAGS="$CFLAGS" 82 CFLAGS="$CFLAGS $ustinc" 83 AC_MSG_CHECKING([for ust]) 84 AC_TRY_COMPILE([ 85#define CONFIG_UST_GDB_INTEGRATION 86#include <ust/ust.h> 87 ],[], 88 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])], 89 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ]) 90 CFLAGS="$saved_CFLAGS" 91fi 92 93# Flags needed for UST 94AC_SUBST(ustlibs) 95AC_SUBST(ustinc) 96 97AC_ARG_ENABLE(werror, 98 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]), 99 [case "${enableval}" in 100 yes | y) ERROR_ON_WARNING="yes" ;; 101 no | n) ERROR_ON_WARNING="no" ;; 102 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;; 103 esac]) 104 105# Enable -Werror by default when using gcc 106if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then 107 ERROR_ON_WARNING=yes 108fi 109 110WERROR_CFLAGS="" 111if test "${ERROR_ON_WARNING}" = yes ; then 112 WERROR_CFLAGS="-Werror" 113fi 114 115build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \ 116-Wformat-nonliteral -Wno-char-subscripts" 117 118WARN_CFLAGS="" 119if test "x$GCC" = xyes 120then 121 AC_MSG_CHECKING(compiler warning flags) 122 # Separate out the -Werror flag as some files just cannot be 123 # compiled with it enabled. 124 for w in ${build_warnings}; do 125 case $w in 126 -Werr*) WERROR_CFLAGS=-Werror ;; 127 *) # Check that GCC accepts it 128 saved_CFLAGS="$CFLAGS" 129 CFLAGS="$CFLAGS $w" 130 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",) 131 CFLAGS="$saved_CFLAGS" 132 esac 133 done 134 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS}) 135fi 136AC_SUBST(WARN_CFLAGS) 137AC_SUBST(WERROR_CFLAGS) 138 139dnl dladdr is glibc-specific. It is used by thread-db.c but only for 140dnl debugging messages. It lives in -ldl which is handled below so we don't 141dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily 142dnl augment LIBS. 143old_LIBS="$LIBS" 144LIBS="$LIBS -ldl" 145AC_CHECK_FUNCS(dladdr) 146LIBS="$old_LIBS" 147 148have_errno=no 149AC_MSG_CHECKING(for errno) 150AC_TRY_LINK([ 151#if HAVE_ERRNO_H 152#include <errno.h> 153#endif], [static int x; x = errno;], 154 [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) have_errno=yes]) 155if test $have_errno = no; then 156AC_TRY_LINK([ 157#if HAVE_ERRNO_H 158#include <errno.h> 159#endif], [extern int errno; static int x; x = errno;], 160 [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])], 161 [AC_MSG_RESULT(no)]) 162fi 163 164AC_CHECK_DECLS([strerror, perror, memmem, vasprintf, vsnprintf]) 165 166AC_CHECK_TYPES(socklen_t, [], [], 167[#include <sys/types.h> 168#include <sys/socket.h> 169]) 170 171ACX_PKGVERSION([GDB]) 172ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/]) 173AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description]) 174AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address]) 175 176# Check for various supplementary target information (beyond the 177# triplet) which might affect the choices in configure.srv. 178case "${target}" in 179changequote(,)dnl 180 i[34567]86-*-linux*) 181changequote([,])dnl 182 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64], 183 [save_CPPFLAGS="$CPPFLAGS" 184 CPPFLAGS="$CPPFLAGS $CFLAGS" 185 AC_EGREP_CPP([got it], [ 186#if __x86_64__ 187got it 188#endif 189 ], [gdb_cv_i386_is_x86_64=yes], 190 [gdb_cv_i386_is_x86_64=no]) 191 CPPFLAGS="$save_CPPFLAGS"]) 192 ;; 193 m68k-*-*) 194 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire], 195 [save_CPPFLAGS="$CPPFLAGS" 196 CPPFLAGS="$CPPFLAGS $CFLAGS" 197 AC_EGREP_CPP([got it], [ 198#ifdef __mcoldfire__ 199got it 200#endif 201 ], [gdb_cv_m68k_is_coldfire=yes], 202 [gdb_cv_m68k_is_coldfire=no]) 203 CPPFLAGS="$save_CPPFLAGS"]) 204 ;; 205esac 206 207. ${srcdir}/configure.srv 208 209if test "${srv_mingwce}" = "yes"; then 210 LIBS="$LIBS -lws2" 211elif test "${srv_mingw}" = "yes"; then 212 LIBS="$LIBS -lws2_32" 213elif test "${srv_qnx}" = "yes"; then 214 LIBS="$LIBS -lsocket" 215elif test "${srv_lynxos}" = "yes"; then 216 LIBS="$LIBS -lnetinet" 217fi 218 219if test "${srv_mingw}" = "yes"; then 220 AC_DEFINE(USE_WIN32API, 1, 221 [Define if we should use the Windows API, instead of the 222 POSIX API. On Windows, we use the Windows API when 223 building for MinGW, but the POSIX API when building 224 for Cygwin.]) 225fi 226 227if test "${srv_linux_usrregs}" = "yes"; then 228 AC_DEFINE(HAVE_LINUX_USRREGS, 1, 229 [Define if the target supports PTRACE_PEEKUSR for register ] 230 [access.]) 231fi 232 233if test "${srv_linux_regsets}" = "yes"; then 234 AC_DEFINE(HAVE_LINUX_REGSETS, 1, 235 [Define if the target supports register sets.]) 236 237 AC_MSG_CHECKING(for PTRACE_GETREGS) 238 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs, 239 [AC_TRY_COMPILE([#include <sys/ptrace.h>], 240 [PTRACE_GETREGS;], 241 [gdbsrv_cv_have_ptrace_getregs=yes], 242 [gdbsrv_cv_have_ptrace_getregs=no])]) 243 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs) 244 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then 245 AC_DEFINE(HAVE_PTRACE_GETREGS, 1, 246 [Define if the target supports PTRACE_GETREGS for register ] 247 [access.]) 248 fi 249 250 AC_MSG_CHECKING(for PTRACE_GETFPXREGS) 251 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs, 252 [AC_TRY_COMPILE([#include <sys/ptrace.h>], 253 [PTRACE_GETFPXREGS;], 254 [gdbsrv_cv_have_ptrace_getfpxregs=yes], 255 [gdbsrv_cv_have_ptrace_getfpxregs=no])]) 256 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs) 257 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then 258 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1, 259 [Define if the target supports PTRACE_GETFPXREGS for extended ] 260 [register access.]) 261 fi 262fi 263 264if test "$ac_cv_header_sys_procfs_h" = yes; then 265 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t) 266 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t) 267 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t) 268 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t) 269fi 270 271dnl Check for libdl, but do not add it to LIBS as only gdbserver 272dnl needs it (and gdbreplay doesn't). 273old_LIBS="$LIBS" 274AC_CHECK_LIB(dl, dlopen) 275LIBS="$old_LIBS" 276 277srv_thread_depfiles= 278srv_libs= 279USE_THREAD_DB= 280 281if test "$srv_linux_thread_db" = "yes"; then 282 if test "$ac_cv_lib_dl_dlopen" = "yes"; then 283 srv_libs="-ldl" 284 AC_MSG_CHECKING(for the dynamic export flag) 285 old_LDFLAGS="$LDFLAGS" 286 # Older GNU ld supports --export-dynamic but --dynamic-list may not be 287 # supported there. 288 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list" 289 LDFLAGS="$LDFLAGS $RDYNAMIC" 290 AC_TRY_LINK([], [], 291 [found="-Wl,--dynamic-list" 292 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'], 293 [RDYNAMIC="-rdynamic" 294 LDFLAGS="$old_LDFLAGS $RDYNAMIC" 295 AC_TRY_LINK([], [], 296 [found="-rdynamic"], 297 [found="no" 298 RDYNAMIC=""])]) 299 AC_SUBST(RDYNAMIC) 300 LDFLAGS="$old_LDFLAGS" 301 AC_MSG_RESULT($found) 302 else 303 srv_libs="-lthread_db" 304 fi 305 306 srv_thread_depfiles="thread-db.o proc-service.o" 307 USE_THREAD_DB="-DUSE_THREAD_DB" 308 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version, 309 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;], 310 [gdbsrv_cv_have_td_version=yes], 311 [gdbsrv_cv_have_td_version=no])]) 312 if test $gdbsrv_cv_have_td_version = yes; then 313 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.]) 314 fi 315fi 316 317AC_ARG_WITH(libthread-db, 318AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]), 319[srv_libthread_db_path="${withval}" 320 srv_libs="$srv_libthread_db_path" 321]) 322 323if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then 324 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.]) 325fi 326 327if test "$srv_xmlfiles" != ""; then 328 srv_xmlbuiltin="xml-builtin.o" 329 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.]) 330 331 tmp_xmlfiles=$srv_xmlfiles 332 srv_xmlfiles="" 333 for f in $tmp_xmlfiles; do 334 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f" 335 done 336fi 337 338GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles" 339GDBSERVER_LIBS="$srv_libs" 340 341dnl Check whether the target supports __sync_*_compare_and_swap. 342AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap], 343 gdbsrv_cv_have_sync_builtins, [ 344AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);], 345 gdbsrv_cv_have_sync_builtins=yes, 346 gdbsrv_cv_have_sync_builtins=no)]) 347if test $gdbsrv_cv_have_sync_builtins = yes; then 348 AC_DEFINE(HAVE_SYNC_BUILTINS, 1, 349 [Define to 1 if the target supports __sync_*_compare_and_swap]) 350fi 351 352dnl Check for -fvisibility=hidden support in the compiler. 353saved_cflags="$CFLAGS" 354CFLAGS="$CFLAGS -fvisibility=hidden" 355AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), 356 [gdbsrv_cv_have_visibility_hidden=yes], 357 [gdbsrv_cv_have_visibility_hidden=no]) 358CFLAGS="$saved_cflags" 359 360 361IPA_DEPFILES="" 362extra_libraries="" 363 364# check whether to enable the inprocess agent 365if test "$ipa_obj" != "" \ 366 -a "$gdbsrv_cv_have_sync_builtins" = yes \ 367 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then 368 have_ipa=true 369else 370 have_ipa=false 371fi 372 373AC_ARG_ENABLE(inprocess-agent, 374AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]), 375[case "$enableval" in 376 yes) want_ipa=true ;; 377 no) want_ipa=false ;; 378 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;; 379esac], 380[want_ipa=$have_ipa]) 381 382if $want_ipa ; then 383 if $have_ipa ; then 384 IPA_DEPFILES="$ipa_obj" 385 extra_libraries="$extra_libraries libinproctrace.so" 386 else 387 AC_MSG_ERROR([inprocess agent not supported for this target]) 388 fi 389fi 390 391AC_SUBST(GDBSERVER_DEPFILES) 392AC_SUBST(GDBSERVER_LIBS) 393AC_SUBST(USE_THREAD_DB) 394AC_SUBST(srv_xmlbuiltin) 395AC_SUBST(srv_xmlfiles) 396AC_SUBST(IPA_DEPFILES) 397AC_SUBST(extra_libraries) 398 399AC_OUTPUT(Makefile, 400[case x$CONFIG_HEADERS in 401xconfig.h:config.in) 402echo > stamp-h ;; 403esac 404]) 405