dnl Autoconf configure script for GDB server.
-dnl Copyright (C) 2000-2013 Free Software Foundation, Inc.
+dnl Copyright (C) 2000-2015 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
AM_MAINTAINER_MODE
AC_PROG_CC
+AC_PROG_CXX
AC_GNU_SOURCE
AC_SYS_LARGEFILE
AC_CANONICAL_SYSTEM
AC_PROG_INSTALL
+AC_CHECK_TOOL(AR, ar)
AC_PROG_RANLIB
AC_ARG_PROGRAM
AC_HEADER_STDC
-AC_HEADER_DIRENT
-AC_FUNC_ALLOCA
+# See if we are building with C++, and substitute COMPILER.
+GDB_AC_BUILD_WITH_CXX
+
+# Set the 'development' global.
+. $srcdir/../../bfd/development.sh
+
+# Enable -lmcheck by default (it provides cheap-enough memory
+# mangling), but turn it off for releases.
+if $development; then
+ libmcheck_default=yes
+else
+ libmcheck_default=no
+fi
+GDB_AC_LIBMCHECK(${libmcheck_default})
+
+ACX_NONCANONICAL_TARGET
+ACX_NONCANONICAL_HOST
# Dependency checking.
ZW_CREATE_DEPDIR
AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
AC_PROG_MAKE_SET
+gnulib_extra_configure_args=
+# If large-file support is disabled, make sure gnulib does the same.
+if test "$enable_largefile" = no; then
+gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
+fi
+
# Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
# to find the the source subdir to be configured directly under
# gdbserver/. We need to build gnulib under some other directory not
# "gnulib", to avoid the problem of both GDB and GDBserver wanting to
# build it in the same directory, when building in the source dir.
-ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"])
+ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"],
+ ["$gnulib_extra_configure_args"])
+
+ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
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 dnl
- errno.h fcntl.h signal.h sys/file.h malloc.h dnl
+ proc_service.h sys/procfs.h linux/elf.h dnl
+ fcntl.h signal.h sys/file.h dnl
sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
- netinet/tcp.h arpa/inet.h sys/wait.h wait.h sys/un.h dnl
- linux/perf_event.h)
-AC_CHECK_FUNCS(pread pwrite pread64 readlink fdwalk pipe2)
-AC_REPLACE_FUNCS(vasprintf vsnprintf)
+ netinet/tcp.h arpa/inet.h)
+AC_CHECK_FUNCS(getauxval pread pwrite pread64 setns)
+
+GDB_AC_COMMON
+
+# Check the return and argument types of ptrace.
+GDB_AC_PTRACE
# Check for UST
ustlibs=""
*) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
esac])
-# Enable -Werror by default when using gcc
-if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
+# Enable -Werror by default when using gcc. Turn it off for releases.
+if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" \
+ && test x"$enable_build_with_cxx" != x"yes" \
+ && $development; then
ERROR_ON_WARNING=yes
fi
WERROR_CFLAGS="-Werror"
fi
-build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
+build_warnings="-Wall -Wpointer-arith \
-Wformat-nonliteral -Wno-char-subscripts -Wempty-body"
+# Now add in C and C++ specific options, depending on mode.
+if test "$enable_build_with_cxx" = "yes"; then
+ build_warnings="$build_warnings -Wno-sign-compare -Wno-write-strings \
+-Wno-narrowing"
+else
+ build_warnings="$build_warnings -Wdeclaration-after-statement"
+fi
+
+# The set of warnings supported by a C++ compiler is not the same as
+# of the C compiler.
+if test "$enable_build_with_cxx" = "yes"; then
+ AC_LANG_PUSH([C++])
+fi
+
WARN_CFLAGS=""
if test "x$GCC" = xyes
then
# Separate out the -Werror flag as some files just cannot be
# compiled with it enabled.
for w in ${build_warnings}; do
+ # GCC does not complain about -Wno-unknown-warning. Invert
+ # and test -Wunknown-warning instead.
+ case $w in
+ -Wno-*)
+ wtest=`echo $w | sed 's/-Wno-/-W/g'` ;;
+ *)
+ wtest=$w ;;
+ esac
+
case $w in
-Werr*) WERROR_CFLAGS=-Werror ;;
- *) # Check that GCC accepts it
+ *)
+ # Check whether GCC accepts it.
saved_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS $w"
+ CFLAGS="$CFLAGS $wtest"
+ saved_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS $wtest"
AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
CFLAGS="$saved_CFLAGS"
+ CXXFLAGS="$saved_CXXFLAGS"
esac
done
AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
AC_SUBST(WARN_CFLAGS)
AC_SUBST(WERROR_CFLAGS)
+if test "$enable_build_with_cxx" = "yes"; then
+ AC_LANG_POP([C++])
+fi
+
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
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 $have_errno = no; then
-AC_TRY_LINK([
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif], [extern int errno; static int x; x = errno;],
- [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
- [AC_MSG_RESULT(no)])
-fi
+libiberty_INIT
-AC_CHECK_DECLS([strerror, strstr, perror, vasprintf, vsnprintf])
+AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf])
+
+AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
AC_CHECK_TYPES(socklen_t, [], [],
[#include <sys/types.h>
#include <sys/socket.h>
])
-AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
-#include <elf.h>
-)
+case "${target}" in
+ *-android*)
+ # Starting with NDK version 9, <elf.h> actually includes definitions
+ # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
+ # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
+ # leading to conflicts with the defintions from <linux/elf.h>.
+ # This makes it impossible for us to include both <elf.h> and
+ # <linux/elf.h>, which means that, in practice, we do not have
+ # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
+ # Therefore, do not try to auto-detect availability, as it would
+ # get it wrong on this platform.
+ ;;
+ *)
+ AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
+ #include <elf.h>
+ )
+esac
ACX_PKGVERSION([GDB])
ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
. ${srcdir}/configure.srv
+# Add in the common host objects.
+. ${srcdir}/../common/common.host
+srv_host_obs="$common_host_obs"
+
if test "${srv_mingwce}" = "yes"; then
LIBS="$LIBS -lws2"
elif test "${srv_mingw}" = "yes"; then
BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
+ BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
fi
done
fi
-GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
+GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs"
GDBSERVER_LIBS="$srv_libs"
dnl Check whether the target supports __sync_*_compare_and_swap.