dnl Autoconf configure script for GDB server.
-dnl Copyright 2000, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+dnl Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+dnl 2010 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
-dnl the Free Software Foundation; either version 2 of the License, or
+dnl the Free Software Foundation; either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
-dnl along with this program; if not, write to the Free Software
-dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
dnl Process this file with autoconf to produce a configure script.
AC_INIT(server.c)
AC_CONFIG_HEADER(config.h:config.in)
+AC_CONFIG_LIBOBJ_DIR(../gnulib)
AC_PROG_CC
+AC_GNU_SOURCE
AC_CANONICAL_SYSTEM
AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
proc_service.h sys/procfs.h thread_db.h linux/elf.h dnl
- stdlib.h unistd.h)
+ stdlib.h unistd.h dnl
+ errno.h fcntl.h signal.h sys/file.h malloc.h dnl
+ sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
+ netinet/tcp.h arpa/inet.h sys/wait.h)
+AC_CHECK_FUNCS(pread pwrite pread64)
+AC_REPLACE_FUNCS(memmem)
-BFD_NEED_DECLARATION(strerror)
+dnl dladdr is glibc-specific. It is used by thread-db.c but only for
+dnl debugging messages. It lives in -ldl which is handled below so we don't
+dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
+dnl augment LIBS.
+old_LIBS="$LIBS"
+LIBS="$LIBS -ldl"
+AC_CHECK_FUNCS(dladdr)
+LIBS="$old_LIBS"
+
+have_errno=no
+AC_MSG_CHECKING(for errno)
+AC_TRY_LINK([
+#if HAVE_ERRNO_H
+#include <errno.h>
+#endif], [static int x; x = errno;],
+ [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) have_errno=yes])
+if test $have_errno = no; then
+AC_TRY_LINK([
+#if HAVE_ERRNO_H
+#include <errno.h>
+#endif], [extern int errno; static int x; x = errno;],
+ [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
+ [AC_MSG_RESULT(no)])
+fi
+
+AC_CHECK_DECLS([strerror, perror, memmem])
AC_CHECK_TYPES(socklen_t, [], [],
[#include <sys/types.h>
#include <sys/socket.h>
])
+
+ACX_PKGVERSION([GDB])
+ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
+AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
+AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
+
+# Check for various supplementary target information (beyond the
+# triplet) which might affect the choices in configure.srv.
+case "${target}" in
+changequote(,)dnl
+ i[34567]86-*-linux*)
+changequote([,])dnl
+ AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
+ [save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $CFLAGS"
+ AC_EGREP_CPP([got it], [
+#if __x86_64__
+got it
+#endif
+ ], [gdb_cv_i386_is_x86_64=yes],
+ [gdb_cv_i386_is_x86_64=no])
+ CPPFLAGS="$save_CPPFLAGS"])
+ ;;
+ m68k-*-*)
+ AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
+ [save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $CFLAGS"
+ AC_EGREP_CPP([got it], [
+#ifdef __mcoldfire__
+got it
+#endif
+ ], [gdb_cv_m68k_is_coldfire=yes],
+ [gdb_cv_m68k_is_coldfire=no])
+ CPPFLAGS="$save_CPPFLAGS"])
+ ;;
+esac
+
. ${srcdir}/configure.srv
+if test "${srv_mingwce}" = "yes"; then
+ LIBS="$LIBS -lws2"
+elif test "${srv_mingw}" = "yes"; then
+ LIBS="$LIBS -lws2_32"
+elif test "${srv_qnx}" = "yes"; then
+ LIBS="$LIBS -lsocket"
+fi
+
+if test "${srv_mingw}" = "yes"; then
+ AC_DEFINE(USE_WIN32API, 1,
+ [Define if we should use the Windows API, instead of the
+ POSIX API. On Windows, we use the Windows API when
+ building for MinGW, but the POSIX API when building
+ for Cygwin.])
+fi
+
if test "${srv_linux_usrregs}" = "yes"; then
AC_DEFINE(HAVE_LINUX_USRREGS, 1,
[Define if the target supports PTRACE_PEEKUSR for register ]
fi
if test "${srv_linux_regsets}" = "yes"; then
+ AC_DEFINE(HAVE_LINUX_REGSETS, 1,
+ [Define if the target supports register sets.])
+
AC_MSG_CHECKING(for PTRACE_GETREGS)
AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
[AC_TRY_COMPILE([#include <sys/ptrace.h>],
[gdbsrv_cv_have_ptrace_getregs=no])])
AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
- AC_DEFINE(HAVE_LINUX_REGSETS, 1,
+ AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
[Define if the target supports PTRACE_GETREGS for register ]
[access.])
fi
BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
- BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
-
- dnl Check for broken prfpregset_t type
-
- dnl For Linux/i386, glibc 2.1.3 was released with a bogus
- dnl prfpregset_t type (it's a typedef for the pointer to a struct
- dnl instead of the struct itself). We detect this here, and work
- dnl around it in gdb_proc_service.h.
-
- if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
- AC_MSG_CHECKING(whether prfpregset_t type is broken)
- AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
- [AC_TRY_RUN([#include <sys/procfs.h>
- int main ()
- {
- if (sizeof (prfpregset_t) == sizeof (void *))
- return 1;
- return 0;
- }],
- gdb_cv_prfpregset_t_broken=no,
- gdb_cv_prfpregset_t_broken=yes,
- gdb_cv_prfpregset_t_broken=yes)])
- AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
- if test $gdb_cv_prfpregset_t_broken = yes; then
- AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
- [Define if the prfpregset_t type is broken.])
- fi
- fi
-
BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
fi
+dnl Check for libdl, but do not add it to LIBS as only gdbserver
+dnl needs it (and gdbreplay doesn't).
+old_LIBS="$LIBS"
+AC_CHECK_LIB(dl, dlopen)
+LIBS="$old_LIBS"
+
srv_thread_depfiles=
srv_libs=
USE_THREAD_DB=
if test "$srv_linux_thread_db" = "yes"; then
- SRV_CHECK_THREAD_DB
- if test "$srv_cv_thread_db" = no; then
- AC_WARN([Could not find libthread_db.])
- AC_WARN([Disabling thread support in gdbserver.])
- srv_linux_thread_db=no
+ if test "$ac_cv_lib_dl_dlopen" = "yes"; then
+ srv_libs="-ldl"
+ AC_MSG_CHECKING(for the dynamic export flag)
+ old_LDFLAGS="$LDFLAGS"
+ # Older GNU ld supports --export-dynamic but --dynamic-list may not be
+ # supported there.
+ RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
+ LDFLAGS="$LDFLAGS $RDYNAMIC"
+ AC_TRY_LINK([], [],
+ [found="-Wl,--dynamic-list"
+ RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
+ [RDYNAMIC="-rdynamic"
+ LDFLAGS="$old_LDFLAGS $RDYNAMIC"
+ AC_TRY_LINK([], [],
+ [found="-rdynamic"],
+ [found="no"
+ RDYNAMIC=""])])
+ AC_SUBST(RDYNAMIC)
+ LDFLAGS="$old_LDFLAGS"
+ AC_MSG_RESULT($found)
else
- srv_libs="$srv_cv_thread_db"
+ srv_libs="-lthread_db"
fi
- old_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -rdynamic"
- AC_TRY_LINK([], [], [RDYNAMIC=-rdynamic], [RDYNAMIC=])
- AC_SUBST(RDYNAMIC)
- LDFLAGS="$old_LDFLAGS"
-fi
-if test "$srv_linux_thread_db" = "yes"; then
srv_thread_depfiles="thread-db.o proc-service.o"
USE_THREAD_DB="-DUSE_THREAD_DB"
+ AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
+ [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
+ [gdbsrv_cv_have_td_version=yes],
+ [gdbsrv_cv_have_td_version=no])])
+ if test $gdbsrv_cv_have_td_version = yes; then
+ AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
+ fi
+fi
+
+AC_ARG_WITH(libthread-db,
+AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
+[srv_libthread_db_path="${withval}"
+ srv_libs="$srv_libthread_db_path"
+])
+
+if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
+ AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
fi
-GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_thread_depfiles"
+if test "$srv_xmlfiles" != ""; then
+ srv_xmlbuiltin="xml-builtin.o"
+ AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
+
+ tmp_xmlfiles=$srv_xmlfiles
+ srv_xmlfiles=""
+ for f in $tmp_xmlfiles; do
+ srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
+ done
+fi
+
+GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
GDBSERVER_LIBS="$srv_libs"
+dnl Check whether the target supports __sync_*_compare_and_swap.
+AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
+ gdbsrv_cv_have_sync_builtins, [
+AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
+ gdbsrv_cv_have_sync_builtins=yes,
+ gdbsrv_cv_have_sync_builtins=no)])
+if test $gdbsrv_cv_have_sync_builtins = yes; then
+ AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
+ [Define to 1 if the target supports __sync_*_compare_and_swap])
+fi
+
+dnl Check for -fvisibility=hidden support in the compiler.
+saved_cflags="$CFLAGS"
+CFLAGS="$CFLAGS -fvisibility=hidden"
+AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
+ [gdbsrv_cv_have_visibility_hidden=yes],
+ [gdbsrv_cv_have_visibility_hidden=no])
+CFLAGS="$saved_cflags"
+
+IPA_DEPFILES=""
+
+# Rather than allowing to build a broken IPA, we simply disable it if
+# we don't find a compiler supporting all the features we need.
+if test "$ipa_obj" != "" \
+ -a "$gdbsrv_cv_have_sync_builtins" = yes \
+ -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
+ IPA_DEPFILES="$ipa_obj"
+ extra_libraries="libinproctrace.so"
+fi
+
AC_SUBST(GDBSERVER_DEPFILES)
AC_SUBST(GDBSERVER_LIBS)
AC_SUBST(USE_THREAD_DB)
+AC_SUBST(srv_xmlbuiltin)
+AC_SUBST(srv_xmlfiles)
+AC_SUBST(IPA_DEPFILES)
+AC_SUBST(extra_libraries)
AC_OUTPUT(Makefile,
[case x$CONFIG_HEADERS in
projects / deliverable / binutils-gdb.git / blobdiff