bb0116a433
vasprintf and vsnprintf are not available on LynxOS, at least not on
version 4.0.0. This patch updates the configury to import them from
libiberty if not available out of the box.
gdbserver/
* Makefile.in (vasprintf.o, vsnprintf.o): New rules.
* configure.ac: Add check for vasprintf and vsnprintf.
* configure, config.in: Regenerate.
* server.h (vasprintf, vsnprintf): Add conditional declarations.
382 lines
11 KiB
Text
382 lines
11 KiB
Text
dnl Autoconf configure script for GDB server.
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dnl Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
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dnl 2010 Free Software Foundation, Inc.
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dnl
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dnl This file is part of GDB.
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dnl
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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dnl Process this file with autoconf to produce a configure script.
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AC_PREREQ(2.59)dnl
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AC_INIT(server.c)
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AC_CONFIG_HEADER(config.h:config.in)
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AC_CONFIG_LIBOBJ_DIR(../gnulib)
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AC_PROG_CC
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AC_GNU_SOURCE
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AC_CANONICAL_SYSTEM
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AC_PROG_INSTALL
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AC_ARG_PROGRAM
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AC_HEADER_STDC
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AC_FUNC_ALLOCA
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AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
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proc_service.h sys/procfs.h thread_db.h linux/elf.h dnl
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stdlib.h unistd.h dnl
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errno.h fcntl.h signal.h sys/file.h malloc.h dnl
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sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
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netinet/tcp.h arpa/inet.h sys/wait.h)
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AC_CHECK_FUNCS(pread pwrite pread64)
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AC_REPLACE_FUNCS(memmem vasprintf vsnprintf)
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# Check for UST
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ustlibs=""
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ustinc=""
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AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
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Equivalent to --with-ust-include=PATH/include
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plus --with-ust-lib=PATH/lib])
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AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
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AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
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case $with_ust in
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no)
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ustlibs=
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ustinc=
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;;
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"" | yes)
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ustlibs=" -lust "
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ustinc=""
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;;
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*)
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ustlibs="-L$with_ust/lib -lust"
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ustinc="-I$with_ust/include "
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;;
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esac
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if test "x$with_ust_include" != x; then
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ustinc="-I$with_ust_include "
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fi
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if test "x$with_ust_lib" != x; then
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ustlibs="-L$with_ust_lib -lust"
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fi
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if test "x$with_ust" != "xno"; then
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saved_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $ustinc"
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AC_MSG_CHECKING([for ust])
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AC_TRY_COMPILE([
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#define CONFIG_UST_GDB_INTEGRATION
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#include <ust/ust.h>
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],[],
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[AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
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[AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
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CFLAGS="$saved_CFLAGS"
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fi
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# Flags needed for UST
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AC_SUBST(ustlibs)
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AC_SUBST(ustinc)
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AC_ARG_ENABLE(werror,
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AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
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[case "${enableval}" in
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yes | y) ERROR_ON_WARNING="yes" ;;
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no | n) ERROR_ON_WARNING="no" ;;
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*) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
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esac])
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# Enable -Werror by default when using gcc
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if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
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ERROR_ON_WARNING=yes
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fi
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WERROR_CFLAGS=""
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if test "${ERROR_ON_WARNING}" = yes ; then
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WERROR_CFLAGS="-Werror"
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fi
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build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
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-Wformat-nonliteral -Wno-char-subscripts"
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WARN_CFLAGS=""
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if test "x$GCC" = xyes
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then
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AC_MSG_CHECKING(compiler warning flags)
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# Separate out the -Werror flag as some files just cannot be
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# compiled with it enabled.
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for w in ${build_warnings}; do
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case $w in
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-Werr*) WERROR_CFLAGS=-Werror ;;
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*) # Check that GCC accepts it
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saved_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $w"
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AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
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CFLAGS="$saved_CFLAGS"
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esac
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done
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AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
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fi
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AC_SUBST(WARN_CFLAGS)
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AC_SUBST(WERROR_CFLAGS)
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dnl dladdr is glibc-specific. It is used by thread-db.c but only for
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dnl debugging messages. It lives in -ldl which is handled below so we don't
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dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
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dnl augment LIBS.
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old_LIBS="$LIBS"
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LIBS="$LIBS -ldl"
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AC_CHECK_FUNCS(dladdr)
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LIBS="$old_LIBS"
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have_errno=no
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AC_MSG_CHECKING(for errno)
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AC_TRY_LINK([
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#if HAVE_ERRNO_H
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#include <errno.h>
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#endif], [static int x; x = errno;],
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[AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) have_errno=yes])
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if test $have_errno = no; then
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AC_TRY_LINK([
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#if HAVE_ERRNO_H
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#include <errno.h>
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#endif], [extern int errno; static int x; x = errno;],
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[AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
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[AC_MSG_RESULT(no)])
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fi
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AC_CHECK_DECLS([strerror, perror, memmem, vasprintf, vsnprintf])
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AC_CHECK_TYPES(socklen_t, [], [],
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[#include <sys/types.h>
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#include <sys/socket.h>
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])
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ACX_PKGVERSION([GDB])
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ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
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AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
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AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
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# Check for various supplementary target information (beyond the
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# triplet) which might affect the choices in configure.srv.
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case "${target}" in
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changequote(,)dnl
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i[34567]86-*-linux*)
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changequote([,])dnl
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AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
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[save_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS $CFLAGS"
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AC_EGREP_CPP([got it], [
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#if __x86_64__
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got it
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#endif
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], [gdb_cv_i386_is_x86_64=yes],
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[gdb_cv_i386_is_x86_64=no])
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CPPFLAGS="$save_CPPFLAGS"])
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;;
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m68k-*-*)
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AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
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[save_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS $CFLAGS"
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AC_EGREP_CPP([got it], [
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#ifdef __mcoldfire__
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got it
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#endif
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], [gdb_cv_m68k_is_coldfire=yes],
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[gdb_cv_m68k_is_coldfire=no])
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CPPFLAGS="$save_CPPFLAGS"])
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;;
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esac
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. ${srcdir}/configure.srv
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if test "${srv_mingwce}" = "yes"; then
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LIBS="$LIBS -lws2"
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elif test "${srv_mingw}" = "yes"; then
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LIBS="$LIBS -lws2_32"
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elif test "${srv_qnx}" = "yes"; then
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LIBS="$LIBS -lsocket"
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fi
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if test "${srv_mingw}" = "yes"; then
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AC_DEFINE(USE_WIN32API, 1,
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[Define if we should use the Windows API, instead of the
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POSIX API. On Windows, we use the Windows API when
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building for MinGW, but the POSIX API when building
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for Cygwin.])
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fi
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if test "${srv_linux_usrregs}" = "yes"; then
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AC_DEFINE(HAVE_LINUX_USRREGS, 1,
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[Define if the target supports PTRACE_PEEKUSR for register ]
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[access.])
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fi
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if test "${srv_linux_regsets}" = "yes"; then
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AC_DEFINE(HAVE_LINUX_REGSETS, 1,
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[Define if the target supports register sets.])
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AC_MSG_CHECKING(for PTRACE_GETREGS)
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AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
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[AC_TRY_COMPILE([#include <sys/ptrace.h>],
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[PTRACE_GETREGS;],
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[gdbsrv_cv_have_ptrace_getregs=yes],
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[gdbsrv_cv_have_ptrace_getregs=no])])
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AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
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if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
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AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
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[Define if the target supports PTRACE_GETREGS for register ]
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[access.])
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fi
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AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
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AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
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[AC_TRY_COMPILE([#include <sys/ptrace.h>],
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[PTRACE_GETFPXREGS;],
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[gdbsrv_cv_have_ptrace_getfpxregs=yes],
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[gdbsrv_cv_have_ptrace_getfpxregs=no])])
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AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
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if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
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AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
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[Define if the target supports PTRACE_GETFPXREGS for extended ]
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[register access.])
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fi
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fi
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if test "$ac_cv_header_sys_procfs_h" = yes; then
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BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
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BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
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BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
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BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
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fi
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dnl Check for libdl, but do not add it to LIBS as only gdbserver
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dnl needs it (and gdbreplay doesn't).
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old_LIBS="$LIBS"
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AC_CHECK_LIB(dl, dlopen)
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LIBS="$old_LIBS"
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srv_thread_depfiles=
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srv_libs=
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USE_THREAD_DB=
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if test "$srv_linux_thread_db" = "yes"; then
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if test "$ac_cv_lib_dl_dlopen" = "yes"; then
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srv_libs="-ldl"
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AC_MSG_CHECKING(for the dynamic export flag)
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old_LDFLAGS="$LDFLAGS"
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# Older GNU ld supports --export-dynamic but --dynamic-list may not be
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# supported there.
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RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
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LDFLAGS="$LDFLAGS $RDYNAMIC"
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AC_TRY_LINK([], [],
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[found="-Wl,--dynamic-list"
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RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
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[RDYNAMIC="-rdynamic"
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LDFLAGS="$old_LDFLAGS $RDYNAMIC"
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AC_TRY_LINK([], [],
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[found="-rdynamic"],
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[found="no"
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RDYNAMIC=""])])
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AC_SUBST(RDYNAMIC)
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LDFLAGS="$old_LDFLAGS"
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AC_MSG_RESULT($found)
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else
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srv_libs="-lthread_db"
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fi
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srv_thread_depfiles="thread-db.o proc-service.o"
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USE_THREAD_DB="-DUSE_THREAD_DB"
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AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
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[AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
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[gdbsrv_cv_have_td_version=yes],
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[gdbsrv_cv_have_td_version=no])])
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if test $gdbsrv_cv_have_td_version = yes; then
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AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
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fi
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fi
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AC_ARG_WITH(libthread-db,
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AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
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[srv_libthread_db_path="${withval}"
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srv_libs="$srv_libthread_db_path"
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])
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if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
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AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
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fi
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if test "$srv_xmlfiles" != ""; then
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srv_xmlbuiltin="xml-builtin.o"
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AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
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tmp_xmlfiles=$srv_xmlfiles
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srv_xmlfiles=""
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for f in $tmp_xmlfiles; do
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srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
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done
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fi
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GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
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GDBSERVER_LIBS="$srv_libs"
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dnl Check whether the target supports __sync_*_compare_and_swap.
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AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
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gdbsrv_cv_have_sync_builtins, [
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AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
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gdbsrv_cv_have_sync_builtins=yes,
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gdbsrv_cv_have_sync_builtins=no)])
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if test $gdbsrv_cv_have_sync_builtins = yes; then
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AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
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[Define to 1 if the target supports __sync_*_compare_and_swap])
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fi
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dnl Check for -fvisibility=hidden support in the compiler.
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saved_cflags="$CFLAGS"
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CFLAGS="$CFLAGS -fvisibility=hidden"
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AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
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[gdbsrv_cv_have_visibility_hidden=yes],
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[gdbsrv_cv_have_visibility_hidden=no])
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CFLAGS="$saved_cflags"
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IPA_DEPFILES=""
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# Rather than allowing to build a broken IPA, we simply disable it if
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# we don't find a compiler supporting all the features we need.
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if test "$ipa_obj" != "" \
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-a "$gdbsrv_cv_have_sync_builtins" = yes \
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-a "$gdbsrv_cv_have_visibility_hidden" = yes; then
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IPA_DEPFILES="$ipa_obj"
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extra_libraries="libinproctrace.so"
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fi
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AC_SUBST(GDBSERVER_DEPFILES)
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AC_SUBST(GDBSERVER_LIBS)
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AC_SUBST(USE_THREAD_DB)
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AC_SUBST(srv_xmlbuiltin)
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AC_SUBST(srv_xmlfiles)
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AC_SUBST(IPA_DEPFILES)
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AC_SUBST(extra_libraries)
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AC_OUTPUT(Makefile,
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[case x$CONFIG_HEADERS in
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xconfig.h:config.in)
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echo > stamp-h ;;
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esac
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])
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