648d586d84
This patch mostly aims at fixing a GDB build failure on 32bit Solaris
systems (Sparc and x86), due to a recent gnulib update adding the
readlink module. But it might also fix related issues when configuring
with --disable-largefile.
A side-effect of the gnulib readlink module addition is that it caused
largefile support to be added as well, and in particular
gnulib/import/m4/largefile.m4 introduced the following new #define in
gnulib's config.in:
| +/* Number of bits in a file offset, on hosts where this is settable. */
| +#undef _FILE_OFFSET_BITS
When defined to 64, it triggers an issue with procfs.h while trying
to build sparc-sol2-nat.c:
| #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
| #error "Cannot use procfs in the large file compilation environment"
| #endif
As it turns out, this is a fairly familiar problem, and one of
the reasons behind ACX_LARGEFILE having been created. In that macro,
we have some code which disables largefile support on solaris hosts:
| sparc-*-solaris*|i[3-7]86-*-solaris*)
| changequote([,])dnl
| # On native 32bit sparc and ia32 solaris, large-file and procfs support
| # are mutually exclusive; and without procfs support, the bfd/ elf module
| # cannot provide certain routines such as elfcore_write_prpsinfo
| # or elfcore_write_prstatus. So unless the user explicitly requested
| # large-file support through the --enable-largefile switch, disable
| # large-file support in favor of procfs support.
| test "${target}" = "${host}" -a "x$plugins" = xno \
| && : ${enable_largefile="no"}
| ;;
But gnulib ignores this fact, and so tries to determine how to
enable large-file support irrespective of whether we want it or not.
This patch fixes the issue by passing --disable-largefile to gnulib's
configure when large-file support in GDB is disabled. This is done
by first enhancing ACX_CONFIGURE_DIR to allow us to pass extra
arguments to be passed to the configure command, and then by modifying
GDB's configure to pass --disable-largefile if large-file support
is disabled.
gdb/ChangeLog:
* acx_configure_dir.m4 (ACX_CONFIGURE_DIR): Add support for
new "EXTRA-ARGS" parameter.
* configure.ac: If large-file support is disabled in GDB,
pass --disable-largefile to ACX_CONFIGURE_DIR call for "gnulib".
* configure: Regenerate.
gdb/gdbserver/ChangeLog:
* configure.ac: If large-file support is disabled in GDBserver,
pass --disable-largefile to ACX_CONFIGURE_DIR call for "gnulib".
* configure: Regenerate.
Tested by rebuilding on sparc-solaris and x86_64-linux (with gdbserver).
This fixes the build failure on sparc-solaris. I also verified in
gnulib's config.log file that we pass --disable-largefile in the solaris
case, while we do not in the GNU/Linux case.
484 lines
14 KiB
Text
484 lines
14 KiB
Text
dnl Autoconf configure script for GDB server.
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dnl Copyright (C) 2000-2014 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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AM_MAINTAINER_MODE
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AC_PROG_CC
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AC_GNU_SOURCE
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AC_SYS_LARGEFILE
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AC_CANONICAL_SYSTEM
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AC_PROG_INSTALL
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AC_CHECK_TOOL(AR, ar)
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AC_PROG_RANLIB
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AC_ARG_PROGRAM
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AC_HEADER_STDC
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# Set the 'development' global.
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. $srcdir/../../bfd/development.sh
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# Enable -lmcheck by default (it provides cheap-enough memory
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# mangling), but turn it off for releases.
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if $development; then
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libmcheck_default=yes
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else
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libmcheck_default=no
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fi
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GDB_AC_LIBMCHECK(${libmcheck_default})
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ACX_NONCANONICAL_TARGET
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ACX_NONCANONICAL_HOST
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# Dependency checking.
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ZW_CREATE_DEPDIR
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ZW_PROG_COMPILER_DEPENDENCIES([CC])
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# Check for the 'make' the user wants to use.
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AC_CHECK_PROGS(MAKE, make)
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MAKE_IS_GNU=
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case "`$MAKE --version 2>&1 | sed 1q`" in
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*GNU*)
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MAKE_IS_GNU=yes
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;;
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esac
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AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
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AC_PROG_MAKE_SET
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gnulib_extra_configure_args=
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# If large-file support is disabled, make sure gnulib does the same.
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if test "$enable_largefile" = no; then
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gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
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fi
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# Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
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# to find the the source subdir to be configured directly under
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# gdbserver/. We need to build gnulib under some other directory not
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# "gnulib", to avoid the problem of both GDB and GDBserver wanting to
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# build it in the same directory, when building in the source dir.
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ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"],
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["$gnulib_extra_configure_args"])
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ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
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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 linux/elf.h dnl
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fcntl.h signal.h sys/file.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)
|
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AC_CHECK_FUNCS(pread pwrite pread64)
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GDB_AC_COMMON
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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 ${enableval} for --enable-werror) ;;
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esac])
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# Enable -Werror by default when using gcc. Turn it off for releases.
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if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
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ERROR_ON_WARNING=yes
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fi
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WERROR_CFLAGS=""
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if test "${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 -Wempty-body"
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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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AC_CHECK_DECLS([strerror, perror, 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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AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
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#include <elf.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="$LIBS -lsocket"
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elif test "${srv_lynxos}" = "yes"; then
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LIBS="$LIBS -lnetinet"
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fi
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if test "${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 "${srv_linux_btrace}" = "yes"; then
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AC_DEFINE(HAVE_LINUX_BTRACE, 1,
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[Define if the target supports branch tracing.])
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fi
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if test "$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 Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
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if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
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GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
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fi
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dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
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if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
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GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_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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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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AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_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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dnl Check if we can disable the virtual address space randomization.
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|
dnl The functionality of setarch -R.
|
|
AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
|
|
define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
|
|
# if !HAVE_DECL_ADDR_NO_RANDOMIZE
|
|
# define ADDR_NO_RANDOMIZE 0x0040000
|
|
# endif
|
|
/* Test the flag could be set and stays set. */
|
|
personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
|
|
if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
|
|
return 1])])
|
|
AC_RUN_IFELSE([PERSONALITY_TEST],
|
|
[gdbsrv_cv_have_personality=true],
|
|
[gdbsrv_cv_have_personality=false],
|
|
[AC_LINK_IFELSE([PERSONALITY_TEST],
|
|
[gdbsrv_cv_have_personality=true],
|
|
[gdbsrv_cv_have_personality=false])])
|
|
if $gdbsrv_cv_have_personality
|
|
then
|
|
AC_DEFINE([HAVE_PERSONALITY], 1,
|
|
[Define if you support the personality syscall.])
|
|
fi
|
|
|
|
|
|
IPA_DEPFILES=""
|
|
extra_libraries=""
|
|
|
|
# check whether to enable the inprocess agent
|
|
if test "$ipa_obj" != "" \
|
|
-a "$gdbsrv_cv_have_sync_builtins" = yes \
|
|
-a "$gdbsrv_cv_have_visibility_hidden" = yes; then
|
|
have_ipa=true
|
|
else
|
|
have_ipa=false
|
|
fi
|
|
|
|
AC_ARG_ENABLE(inprocess-agent,
|
|
AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
|
|
[case "$enableval" in
|
|
yes) want_ipa=true ;;
|
|
no) want_ipa=false ;;
|
|
*) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
|
|
esac],
|
|
[want_ipa=$have_ipa])
|
|
|
|
if $want_ipa ; then
|
|
if $have_ipa ; then
|
|
IPA_DEPFILES="$ipa_obj"
|
|
extra_libraries="$extra_libraries libinproctrace.so"
|
|
else
|
|
AC_MSG_ERROR([inprocess agent not supported for this target])
|
|
fi
|
|
fi
|
|
|
|
AC_SUBST(GDBSERVER_DEPFILES)
|
|
AC_SUBST(GDBSERVER_LIBS)
|
|
AC_SUBST(srv_xmlbuiltin)
|
|
AC_SUBST(srv_xmlfiles)
|
|
AC_SUBST(IPA_DEPFILES)
|
|
AC_SUBST(extra_libraries)
|
|
|
|
GNULIB=build-gnulib-gdbserver/import
|
|
|
|
GNULIB_STDINT_H=
|
|
if test x"$STDINT_H" != x; then
|
|
GNULIB_STDINT_H=$GNULIB/$STDINT_H
|
|
fi
|
|
AC_SUBST(GNULIB_STDINT_H)
|
|
|
|
AC_OUTPUT(Makefile,
|
|
[case x$CONFIG_HEADERS in
|
|
xconfig.h:config.in)
|
|
echo > stamp-h ;;
|
|
esac
|
|
])
|