dnl Autoconf configure script for GDB server.
-dnl Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006
-dnl Free Software Foundation, Inc.
+dnl Copyright (C) 2000-2015 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
AC_INIT(server.c)
AC_CONFIG_HEADER(config.h:config.in)
+AM_MAINTAINER_MODE
+
AC_PROG_CC
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
+# 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
+ZW_PROG_COMPILER_DEPENDENCIES([CC])
+
+# Check for the 'make' the user wants to use.
+AC_CHECK_PROGS(MAKE, make)
+MAKE_IS_GNU=
+case "`$MAKE --version 2>&1 | sed 1q`" in
+ *GNU*)
+ MAKE_IS_GNU=yes
+ ;;
+esac
+AM_CONDITIONAL(GMAKE, test "$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"],
+ ["$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)
-AC_CHECK_FUNCS(pread pwrite pread64)
-
-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])
+ netinet/tcp.h arpa/inet.h)
+AC_CHECK_FUNCS(getauxval pread pwrite pread64)
+
+GDB_AC_COMMON
+
+# Check for UST
+ustlibs=""
+ustinc=""
+
+AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
+ Equivalent to --with-ust-include=PATH/include
+ plus --with-ust-lib=PATH/lib])
+AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
+AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
+
+case $with_ust in
+ no)
+ ustlibs=
+ ustinc=
+ ;;
+ "" | yes)
+ ustlibs=" -lust "
+ ustinc=""
+ ;;
+ *)
+ ustlibs="-L$with_ust/lib -lust"
+ ustinc="-I$with_ust/include "
+ ;;
+esac
+if test "x$with_ust_include" != x; then
+ ustinc="-I$with_ust_include "
+fi
+if test "x$with_ust_lib" != x; then
+ ustlibs="-L$with_ust_lib -lust"
+fi
+
+if test "x$with_ust" != "xno"; then
+ saved_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $ustinc"
+ AC_MSG_CHECKING([for ust])
+ AC_TRY_COMPILE([
+#define CONFIG_UST_GDB_INTEGRATION
+#include <ust/ust.h>
+ ],[],
+ [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
+ [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
+ CFLAGS="$saved_CFLAGS"
+fi
+
+# Flags needed for UST
+AC_SUBST(ustlibs)
+AC_SUBST(ustinc)
+
+AC_ARG_ENABLE(werror,
+ AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
+ [case "${enableval}" in
+ yes | y) ERROR_ON_WARNING="yes" ;;
+ no | n) ERROR_ON_WARNING="no" ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
+ esac])
+
+# Enable -Werror by default when using gcc. Turn it off for releases.
+if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
+ ERROR_ON_WARNING=yes
+fi
+
+WERROR_CFLAGS=""
+if test "${ERROR_ON_WARNING}" = yes ; then
+ WERROR_CFLAGS="-Werror"
+fi
+
+build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
+-Wformat-nonliteral -Wno-char-subscripts -Wempty-body"
+
+WARN_CFLAGS=""
+if test "x$GCC" = xyes
+then
+ AC_MSG_CHECKING(compiler warning flags)
+ # Separate out the -Werror flag as some files just cannot be
+ # compiled with it enabled.
+ for w in ${build_warnings}; do
+ case $w in
+ -Werr*) WERROR_CFLAGS=-Werror ;;
+ *) # Check that GCC accepts it
+ saved_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $w"
+ AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
+ CFLAGS="$saved_CFLAGS"
+ esac
+ done
+ AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
+fi
+AC_SUBST(WARN_CFLAGS)
+AC_SUBST(WERROR_CFLAGS)
+
+dnl dladdr is glibc-specific. It is used by thread-db.c but only for
+dnl debugging messages. It lives in -ldl which is handled below so we don't
+dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
+dnl augment LIBS.
+old_LIBS="$LIBS"
+LIBS="$LIBS -ldl"
+AC_CHECK_FUNCS(dladdr)
+LIBS="$old_LIBS"
+
+AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf])
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>
+)
+
+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 "${target}" in
- arm*-*-linux*)
- AC_CACHE_CHECK([if iWMMXt is selected], [gdb_cv_arm_iwmmxt],
- [save_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$CPPFLAGS $CFLAGS"
- AC_EGREP_CPP([got it], [
-#ifdef __IWMMXT__
-got it
-#endif
- ], [gdb_cv_arm_iwmmxt=yes],
- [gdb_cv_arm_iwmmxt=no])
- CPPFLAGS="$save_CPPFLAGS"])
- ;;
- powerpc*-*-*)
- AC_CACHE_CHECK([if Altivec is selected], [gdb_cv_ppc_altivec],
+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 $CFLAGS"
AC_EGREP_CPP([got it], [
-#ifdef __ALTIVEC__
+#if __x86_64__
got it
#endif
- ], [gdb_cv_ppc_altivec=yes],
- [gdb_cv_ppc_altivec=no])
+ ], [gdb_cv_i386_is_x86_64=yes],
+ [gdb_cv_i386_is_x86_64=no])
CPPFLAGS="$save_CPPFLAGS"])
- AC_CACHE_CHECK([if SPE is selected], [gdb_cv_ppc_spe],
+ ;;
+ m68k-*-*)
+ AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
[save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $CFLAGS"
AC_EGREP_CPP([got it], [
-#ifdef __SPE__
+#ifdef __mcoldfire__
got it
#endif
- ], [gdb_cv_ppc_spe=yes],
- [gdb_cv_ppc_spe=no])
+ ], [gdb_cv_m68k_is_coldfire=yes],
+ [gdb_cv_m68k_is_coldfire=no])
CPPFLAGS="$save_CPPFLAGS"])
;;
esac
if test "${srv_mingwce}" = "yes"; then
LIBS="$LIBS -lws2"
elif test "${srv_mingw}" = "yes"; then
- LIBS="$LIBS -lwsock32"
+ LIBS="$LIBS -lws2_32"
+elif test "${srv_qnx}" = "yes"; then
+ LIBS="$LIBS -lsocket"
+elif test "${srv_lynxos}" = "yes"; then
+ LIBS="$LIBS -lnetinet"
fi
if test "${srv_mingw}" = "yes"; then
fi
fi
+if test "${srv_linux_btrace}" = "yes"; then
+ AC_DEFINE(HAVE_LINUX_BTRACE, 1,
+ [Define if the target supports branch tracing.])
+fi
+
if test "$ac_cv_header_sys_procfs_h" = yes; then
BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
fi
+dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
+if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
+ GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
+fi
+
+dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
+if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
+ GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_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_CHECK_TLS_GET_ADDR
+ 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_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_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])])
+ [gdbsrv_cv_have_td_version=yes],
+ [gdbsrv_cv_have_td_version=no])])
if test $gdbsrv_cv_have_td_version = yes; then
AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
fi
+fi
- if test "$srv_cv_tls_get_addr" = yes; then
- AC_DEFINE(HAVE_TD_THR_TLS_GET_ADDR, 1, [Define if td_thr_tls_get_addr is available.])
- 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
-if test "$srv_xmltarget" != ""; then
- srv_xmltarget="\$(XML_DIR)/$srv_xmltarget"
+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="target.xml"
+ srv_xmlfiles=""
for f in $tmp_xmlfiles; do
srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
done
fi
-GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_thread_depfiles"
+GDBSERVER_DEPFILES="$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"
+
+dnl Check if we can disable the virtual address space randomization.
+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="$extra_libraries libinproctrace.so"
+ else
+ AC_MSG_ERROR([inprocess agent not supported for this target])
+ fi
+fi
+
AC_SUBST(GDBSERVER_DEPFILES)
AC_SUBST(GDBSERVER_LIBS)
-AC_SUBST(USE_THREAD_DB)
AC_SUBST(srv_xmlbuiltin)
AC_SUBST(srv_xmlfiles)
-AC_SUBST(srv_xmltarget)
+AC_SUBST(IPA_DEPFILES)
+AC_SUBST(extra_libraries)
+
+GNULIB=build-gnulib-gdbserver/import
+
+GNULIB_STDINT_H=
+if test x"$STDINT_H" != x; then
+ GNULIB_STDINT_H=$GNULIB/$STDINT_H
+fi
+AC_SUBST(GNULIB_STDINT_H)
AC_OUTPUT(Makefile,
[case x$CONFIG_HEADERS in