gdb/gdbserver/configure.ac

   1 dnl Autoconf configure script for GDB server.
   2 dnl Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
   3 dnl 2010 Free Software Foundation, Inc.
   4 dnl
   5 dnl This file is part of GDB.
   6 dnl
   7 dnl This program is free software; you can redistribute it and/or modify
   8 dnl it under the terms of the GNU General Public License as published by
   9 dnl the Free Software Foundation; either version 3 of the License, or
  10 dnl (at your option) any later version.
  11 dnl
  12 dnl This program is distributed in the hope that it will be useful,
  13 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 dnl GNU General Public License for more details.
  16 dnl
  17 dnl You should have received a copy of the GNU General Public License
  18 dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 dnl Process this file with autoconf to produce a configure script.
  21
  22 AC_PREREQ(2.59)dnl
  23
  24 AC_INIT(server.c)
  25 AC_CONFIG_HEADER(config.h:config.in)
  26 AC_CONFIG_LIBOBJ_DIR(../gnulib)
  27
  28 AC_PROG_CC
  29 AC_GNU_SOURCE
  30
  31 AC_CANONICAL_SYSTEM
  32
  33 AC_PROG_INSTALL
  34
  35 AC_ARG_PROGRAM
  36
  37 AC_HEADER_STDC
  38
  39 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
  40                  proc_service.h sys/procfs.h thread_db.h linux/elf.h dnl
  41                  stdlib.h unistd.h dnl
  42                  errno.h fcntl.h signal.h sys/file.h malloc.h dnl
  43                  sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
  44                  netinet/tcp.h arpa/inet.h sys/wait.h)
  45 AC_CHECK_FUNCS(pread pwrite pread64)
  46 AC_REPLACE_FUNCS(memmem)
  47
  48 dnl dladdr is glibc-specific.  It is used by thread-db.c but only for
  49 dnl debugging messages.  It lives in -ldl which is handled below so we don't
  50 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here.  Instead we just temporarily
  51 dnl augment LIBS.
  52 old_LIBS="$LIBS"
  53 LIBS="$LIBS -ldl"
  54 AC_CHECK_FUNCS(dladdr)
  55 LIBS="$old_LIBS"
  56
  57 have_errno=no
  58 AC_MSG_CHECKING(for errno)
  59 AC_TRY_LINK([
  60 #if HAVE_ERRNO_H
  61 #include <errno.h>
  62 #endif], [static int x; x = errno;],
  63   [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) have_errno=yes])
  64 if test $have_errno = no; then
  65 AC_TRY_LINK([
  66 #if HAVE_ERRNO_H
  67 #include <errno.h>
  68 #endif], [extern int errno; static int x; x = errno;],
  69   [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
  70   [AC_MSG_RESULT(no)])
  71 fi
  72
  73 AC_CHECK_DECLS([strerror, perror, memmem])
  74
  75 AC_CHECK_TYPES(socklen_t, [], [],
  76 [#include <sys/types.h>
  77 #include <sys/socket.h>
  78 ])
  79
  80 ACX_PKGVERSION([GDB])
  81 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
  82 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
  83 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
  84
  85 # Check for various supplementary target information (beyond the
  86 # triplet) which might affect the choices in configure.srv.
  87 case "${target}" in
  88 changequote(,)dnl
  89   i[34567]86-*-linux*)
  90 changequote([,])dnl
  91     AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
  92                    [save_CPPFLAGS="$CPPFLAGS"
  93                     CPPFLAGS="$CPPFLAGS $CFLAGS"
  94                     AC_EGREP_CPP([got it], [
  95 #if __x86_64__
  96 got it
  97 #endif
  98                  ], [gdb_cv_i386_is_x86_64=yes],
  99                     [gdb_cv_i386_is_x86_64=no])
 100                     CPPFLAGS="$save_CPPFLAGS"])
 101     ;;
 102   m68k-*-*)
 103     AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
 104                    [save_CPPFLAGS="$CPPFLAGS"
 105                     CPPFLAGS="$CPPFLAGS $CFLAGS"
 106                     AC_EGREP_CPP([got it], [
 107 #ifdef __mcoldfire__
 108 got it
 109 #endif
 110                  ], [gdb_cv_m68k_is_coldfire=yes],
 111                     [gdb_cv_m68k_is_coldfire=no])
 112                     CPPFLAGS="$save_CPPFLAGS"])
 113     ;;
 114 esac
 115
 116 . ${srcdir}/configure.srv
 117
 118 if test "${srv_mingwce}" = "yes"; then
 119   LIBS="$LIBS -lws2"
 120 elif test "${srv_mingw}" = "yes"; then
 121   LIBS="$LIBS -lws2_32"
 122 elif test "${srv_qnx}" = "yes"; then
 123   LIBS="$LIBS -lsocket"
 124 fi
 125
 126 if test "${srv_mingw}" = "yes"; then
 127   AC_DEFINE(USE_WIN32API, 1,
 128             [Define if we should use the Windows API, instead of the
 129              POSIX API.  On Windows, we use the Windows API when
 130              building for MinGW, but the POSIX API when building
 131              for Cygwin.])
 132 fi
 133
 134 if test "${srv_linux_usrregs}" = "yes"; then
 135   AC_DEFINE(HAVE_LINUX_USRREGS, 1,
 136             [Define if the target supports PTRACE_PEEKUSR for register ]
 137             [access.])
 138 fi
 139
 140 if test "${srv_linux_regsets}" = "yes"; then
 141   AC_DEFINE(HAVE_LINUX_REGSETS, 1,
 142             [Define if the target supports register sets.])
 143
 144   AC_MSG_CHECKING(for PTRACE_GETREGS)
 145   AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
 146   [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 147                   [PTRACE_GETREGS;],
 148                   [gdbsrv_cv_have_ptrace_getregs=yes],
 149                   [gdbsrv_cv_have_ptrace_getregs=no])])
 150   AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
 151   if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
 152     AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
 153               [Define if the target supports PTRACE_GETREGS for register ]
 154               [access.])
 155   fi
 156
 157   AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
 158   AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
 159   [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 160                   [PTRACE_GETFPXREGS;],
 161                   [gdbsrv_cv_have_ptrace_getfpxregs=yes],
 162                   [gdbsrv_cv_have_ptrace_getfpxregs=no])])
 163   AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
 164   if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
 165     AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
 166               [Define if the target supports PTRACE_GETFPXREGS for extended ]
 167               [register access.])
 168   fi
 169 fi
 170
 171 if test "$ac_cv_header_sys_procfs_h" = yes; then
 172   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
 173   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
 174   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
 175   BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
 176 fi
 177
 178 dnl Check for libdl, but do not add it to LIBS as only gdbserver
 179 dnl needs it (and gdbreplay doesn't).
 180 old_LIBS="$LIBS"
 181 AC_CHECK_LIB(dl, dlopen)
 182 LIBS="$old_LIBS"
 183
 184 srv_thread_depfiles=
 185 srv_libs=
 186 USE_THREAD_DB=
 187
 188 if test "$srv_linux_thread_db" = "yes"; then
 189   if test "$ac_cv_lib_dl_dlopen" = "yes"; then
 190     srv_libs="-ldl"
 191     old_LDFLAGS="$LDFLAGS"
 192     LDFLAGS="$LDFLAGS -rdynamic"
 193     AC_TRY_LINK([], [], [RDYNAMIC=-rdynamic], [RDYNAMIC=])
 194     AC_SUBST(RDYNAMIC)
 195     LDFLAGS="$old_LDFLAGS"
 196   else
 197     srv_libs="-lthread_db"
 198   fi
 199
 200   srv_thread_depfiles="thread-db.o proc-service.o"
 201   USE_THREAD_DB="-DUSE_THREAD_DB"
 202   AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
 203   [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
 204                   [gdbsrv_cv_have_td_version=yes],
 205                   [gdbsrv_cv_have_td_version=no])])
 206   if test $gdbsrv_cv_have_td_version = yes; then
 207     AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
 208   fi
 209 fi
 210
 211 AC_ARG_WITH(libthread-db,
 212 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
 213 [srv_libthread_db_path="${withval}"
 214   srv_libs="$srv_libthread_db_path"
 215 ])
 216
 217 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
 218   AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
 219 fi
 220
 221 if test "$srv_xmlfiles" != ""; then
 222   srv_xmlbuiltin="xml-builtin.o"
 223   AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
 224
 225   tmp_xmlfiles=$srv_xmlfiles
 226   srv_xmlfiles=""
 227   for f in $tmp_xmlfiles; do
 228     srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
 229   done
 230 fi
 231
 232 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
 233 GDBSERVER_LIBS="$srv_libs"
 234
 235 AC_SUBST(GDBSERVER_DEPFILES)
 236 AC_SUBST(GDBSERVER_LIBS)
 237 AC_SUBST(USE_THREAD_DB)
 238 AC_SUBST(srv_xmlbuiltin)
 239 AC_SUBST(srv_xmlfiles)
 240
 241 AC_OUTPUT(Makefile,
 242 [case x$CONFIG_HEADERS in
 243 xconfig.h:config.in)
 244 echo > stamp-h ;;
 245 esac
 246 ])