dnl Autoconf configure script for GDB, the GNU debugger. dnl Copyright (C) 1995-2013 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 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 but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 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, see . dnl Process this file with autoconf to produce a configure script. AC_PREREQ(2.59)dnl AC_INIT(main.c) AC_CONFIG_HEADER(config.h:config.in) AM_MAINTAINER_MODE # Provide more thorough testing by -lmcheck. # Set it to 'true' for development snapshots, 'false' for releases or # pre-releases. development=true AC_PROG_CC AC_USE_SYSTEM_EXTENSIONS ACX_LARGEFILE AM_PROG_CC_STDC AC_CONFIG_AUX_DIR(..) AC_CANONICAL_SYSTEM AC_ARG_PROGRAM # 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 # Configure gnulib. 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"]) dnl List of object files and targets accumulated by configure. CONFIG_OBS= CONFIG_DEPS= CONFIG_SRCS= ENABLE_CFLAGS= CONFIG_ALL= CONFIG_CLEAN= CONFIG_INSTALL= CONFIG_UNINSTALL= dnl Set up for gettext. ZW_GNU_GETTEXT_SISTER_DIR localedir='${datadir}/locale' AC_SUBST(localedir) if test x"$USE_NLS" = xyes; then CONFIG_ALL="$CONFIG_ALL all-po" CONFIG_CLEAN="$CONFIG_CLEAN clean-po" CONFIG_INSTALL="$CONFIG_INSTALL install-po" CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po" fi GNULIB=build-gnulib/import # For Makefile dependencies. GNULIB_STDINT_H= if test x"$STDINT_H" != x; then GNULIB_STDINT_H=$GNULIB/$STDINT_H fi AC_SUBST(GNULIB_STDINT_H) PACKAGE=gdb AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ]) AC_SUBST(PACKAGE) # We never need to detect it in this sub-configure. # But preserve it for config.status --recheck. AC_ARG_VAR(MAKEINFO, [Parent configure detects if it is of sufficient version.]) AC_ARG_VAR(MAKEINFOFLAGS, [Parameters for MAKEINFO.]) MAKEINFO_EXTRA_FLAGS="" AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click, [echo '@clicksequence{a @click{} b}' >conftest.texinfo if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then gdb_cv_have_makeinfo_click=yes else gdb_cv_have_makeinfo_click=no fi]) if test x"$gdb_cv_have_makeinfo_click" = xyes; then MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK" fi AC_SUBST(MAKEINFO_EXTRA_FLAGS) GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir, [look for global separate debug info in this path @<:@LIBDIR/debug@:>@], [${libdir}/debug]) # We can't pass paths as command line arguments. # Mingw32 tries to be clever and will convert the paths for us. # For example -DBINDIR="/usr/local/bin" passed on the command line may get # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin". # This breaks GDB's relocatable path conversions since paths passed in # config.h would not get so translated, the path prefixes no longer match. AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.]) # GDB's datadir relocation GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir, [look for global separate data files in this path @<:@DATADIR/gdb@:>@], [${datadir}/gdb]) AC_ARG_WITH(relocated-sources, AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]), [reloc_srcdir="${withval}" AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir, [Relocated directory for source files. ]) ]) AC_MSG_CHECKING([for default auto-load directory]) AC_ARG_WITH(auto-load-dir, AS_HELP_STRING([--with-auto-load-dir=PATH], [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),, [with_auto_load_dir='$debugdir:$datadir/auto-load']) escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'` AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir, [Directories from which to load auto-loaded scripts.]) AC_MSG_RESULT([$with_auto_load_dir]) AC_MSG_CHECKING([for default auto-load safe-path]) AC_ARG_WITH(auto-load-safe-path, AS_HELP_STRING([--with-auto-load-safe-path=PATH], [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@]) AS_HELP_STRING([--without-auto-load-safe-path], [do not restrict auto-loaded files locations]), [if test "$with_auto_load_safe_path" = "no"; then with_auto_load_safe_path="/" fi], [with_auto_load_safe_path="$with_auto_load_dir"]) escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'` AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir, [Directories safe to hold auto-loaded files.]) AC_MSG_RESULT([$with_auto_load_safe_path]) AC_CONFIG_SUBDIRS(testsuite) # Check whether to support alternative target configurations AC_ARG_ENABLE(targets, AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]), [case "${enableval}" in yes | "") AC_ERROR(enable-targets option must specify target names or 'all') ;; no) enable_targets= ;; *) enable_targets=$enableval ;; esac]) # Check whether to enable 64-bit support on 32-bit hosts AC_ARG_ENABLE(64-bit-bfd, AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]), [case "${enableval}" in yes) want64=true ;; no) want64=false ;; *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;; esac],[want64=false])dnl # Provide defaults for some variables set by the per-host and per-target # configuration. gdb_host_obs=posix-hdep.o if test "${target}" = "${host}"; then gdb_native=yes else gdb_native=no fi . $srcdir/configure.host # Accumulate some settings from configure.tgt over all enabled targets TARGET_OBS= all_targets= HAVE_NATIVE_GCORE_TARGET= for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'` do if test "$targ_alias" = "all"; then all_targets=true else # Canonicalize the secondary target names. result=`$ac_config_sub $targ_alias 2>/dev/null` if test -n "$result"; then targ=$result else targ=$targ_alias fi . ${srcdir}/configure.tgt AS_IF([test -z "${gdb_target_obs}"], [AC_MSG_ERROR([configuration ${targ} is unsupported.])]) # Target-specific object files for i in ${gdb_target_obs}; do case " $TARGET_OBS " in *" ${i} "*) ;; *) TARGET_OBS="$TARGET_OBS ${i}" ;; esac done # Check whether this target needs 64-bit CORE_ADDR if test x${want64} = xfalse; then . ${srcdir}/../bfd/config.bfd fi # Check whether this target is native and supports gcore. if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \ && $gdb_have_gcore; then HAVE_NATIVE_GCORE_TARGET=1 fi fi done if test x${all_targets} = xtrue; then # We want all 64-bit targets if we either: # - run on a 64-bit host or # - already require 64-bit support for some other target or # - the --enable-64-bit-bfd option was supplied # Otherwise we only support all 32-bit targets. # # NOTE: This test must be in sync with the corresponding # tests in BFD! if test x${want64} = xfalse; then AC_CHECK_SIZEOF(long) if test "x${ac_cv_sizeof_long}" = "x8"; then want64=true fi fi if test x${want64} = xtrue; then TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)' else TARGET_OBS='$(ALL_TARGET_OBS)' fi fi AC_SUBST(TARGET_OBS) AC_SUBST(HAVE_NATIVE_GCORE_TARGET) # For other settings, only the main target counts. gdb_sim= gdb_osabi= build_gdbserver= targ=$target; . ${srcdir}/configure.tgt # Fetch the default architecture and default target vector from BFD. targ=$target; . $srcdir/../bfd/config.bfd # We only want the first architecture, so strip off the others if # there is more than one. targ_archs=`echo $targ_archs | sed 's/ .*//'` if test "x$targ_archs" != x; then AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs, [Define to BFD's default architecture. ]) fi if test "x$targ_defvec" != x; then AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec, [Define to BFD's default target vector. ]) fi # The CLI cannot be disabled yet, but may be in the future. # Enable CLI. AC_ARG_ENABLE(gdbcli, AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]), [case $enableval in yes) ;; no) AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;; *) AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;; esac], [enable_gdbcli=yes]) if test x"$enable_gdbcli" = xyes; then if test -d $srcdir/cli; then CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)" CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)" CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)" ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)" fi fi # Enable MI. AC_ARG_ENABLE(gdbmi, AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]), [case $enableval in yes | no) ;; *) AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;; esac], [enable_gdbmi=yes]) if test x"$enable_gdbmi" = xyes; then if test -d $srcdir/mi; then CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)" CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)" CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)" ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)" fi fi # Enable TUI. AC_ARG_ENABLE(tui, AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]), [case $enableval in yes | no | auto) ;; *) AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;; esac],enable_tui=auto) # Enable gdbtk. AC_ARG_ENABLE(gdbtk, AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]), [case $enableval in yes | no) ;; *) AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;; esac], [if test -d $srcdir/gdbtk; then enable_gdbtk=yes else enable_gdbtk=no fi]) # We unconditionally disable gdbtk tests on selected platforms. case $host_os in go32* | windows*) AC_MSG_WARN([gdbtk isn't supported on $host; disabling]) enable_gdbtk=no ;; esac # Libunwind support for ia64. AC_ARG_WITH(libunwind-ia64, AS_HELP_STRING([--with-libunwind-ia64], [use libunwind frame unwinding for ia64 targets]),, [with_libunwind_ia64=auto]) # Backward compatibility option. if test "${with_libunwind+set}" = set; then if test x"$with_libunwind_ia64" != xauto; then AC_MSG_ERROR( [option --with-libunwind is deprecated, use --with-libunwind-ia64]) fi AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64]) with_libunwind_ia64="$with_libunwind" fi case "$with_libunwind_ia64" in yes | no) ;; auto) AC_CHECK_HEADERS(libunwind-ia64.h) with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h ;; *) AC_MSG_ERROR( [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option]) ;; esac if test x"$with_libunwind_ia64" = xyes; then AC_CHECK_HEADERS(libunwind-ia64.h) if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h]) fi CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o" CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o" CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c" fi opt_curses=no AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval) prefer_curses=no if test "$opt_curses" = "yes"; then prefer_curses=yes fi # Profiling support. AC_ARG_ENABLE(profiling, AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]), [case $enableval in yes | no) ;; *) AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;; esac], [enable_profiling=no]) AC_CHECK_FUNCS(monstartup _mcleanup) AC_CACHE_CHECK([for _etext], ac_cv_var__etext, [AC_TRY_LINK( [#include extern char _etext; ], [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)]) if test $ac_cv_var__etext = yes; then AC_DEFINE(HAVE__ETEXT, 1, [Define to 1 if your system has the _etext variable. ]) fi AC_CACHE_CHECK([for etext], ac_cv_var_etext, [AC_TRY_LINK( [#include extern char etext; ], [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)]) if test $ac_cv_var_etext = yes; then AC_DEFINE(HAVE_ETEXT, 1, [Define to 1 if your system has the etext variable. ]) fi if test "$enable_profiling" = yes ; then if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup) fi PROFILE_CFLAGS=-pg OLD_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PROFILE_CFLAGS" AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg, [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes, ac_cv_cc_supports_pg=no)]) if test $ac_cv_cc_supports_pg = no; then AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg) fi CFLAGS="$OLD_CFLAGS" fi 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]) # --------------------- # # Checks for programs. # # --------------------- # AC_PROG_AWK AC_PROG_INSTALL AC_PROG_LN_S AC_PROG_RANLIB AC_PROG_YACC AC_CHECK_TOOL(AR, ar) AC_CHECK_TOOL(DLLTOOL, dlltool) AC_CHECK_TOOL(WINDRES, windres) case $host_os in gnu*) # Needed for GNU Hurd hosts. AC_CHECK_TOOL(MIG, mig) if test x"$MIG" = x; then AC_MSG_ERROR([MIG not found but required for $host hosts]) fi ;; esac # ---------------------- # # Checks for libraries. # # ---------------------- # # We might need to link with -lm; most simulators need it. AC_CHECK_LIB(m, main) # We need to link with -lw to get `wctype' on Solaris before Solaris # 2.6. Solaris 2.6 and beyond have this function in libc, and have a # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1 # is known to have this problem). Therefore we avoid libw if we can. AC_CHECK_FUNC(wctype, [], [AC_CHECK_LIB(w, wctype)]) # Some systems (e.g. Solaris) have `gethostbyname' in libnsl. AC_SEARCH_LIBS(gethostbyname, nsl) # Some systems (e.g. Solaris) have `socketpair' in libsocket. AC_SEARCH_LIBS(socketpair, socket) # Link in zlib if we can. This allows us to read compressed debug sections. AM_ZLIB # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c). AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl]) AM_ICONV # GDB may fork/exec the iconv program to get the list of supported character # sets. Allow the user to specify where to find it. # There are several factors affecting the choice of option name: # - There is already --with-libiconv-prefix but we can't use it, it specifies # the build-time location of libiconv files. # - The program we need to find is iconv, which comes with glibc. The user # doesn't necessarily have libiconv installed. Therefore naming this # --with-libiconv-foo feels wrong. # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is # defined to work on directories not files (though it really doesn't know # the difference). # - Calling this --with-iconv-prefix is perceived to cause too much confusion # with --with-libiconv-prefix. # Putting these together is why the option name is --with-iconv-bin. AC_ARG_WITH(iconv-bin, AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]), [iconv_bin="${withval}" AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"], [Path of directory of iconv program.]) GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin}) ]) # On alpha-osf, it appears that libtermcap and libcurses are not compatible. # There is a very specific comment in /usr/include/curses.h explaining that # termcap routines built into libcurses must not be used. # # The symptoms we observed so far is GDB unexpectedly changing # the terminal settings when tgetent is called - this is particularly # visible as the output is missing carriage returns, and so rapidly # becomes very hard to read. # # The readline configure script has already decided that libtermcap # was enough for its purposes, and so decided to build readline using # libtermcap. Since the TUI mode requires curses, building GDB with # TUI enabled results in both libraries to be used at the same time, # which is not allowed. This basically means that GDB with TUI is # broken on alpha-osf. case $host_os in osf* ) if test x"$enable_tui" = xyes; then AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host]) fi if test x"$enable_tui" = xauto; then enable_tui=no fi ;; esac # For the TUI, we need enhanced curses functionality. if test x"$enable_tui" != xno; then prefer_curses=yes fi curses_found=no if test x"$prefer_curses" = xyes; then # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied # curses library because the latter might not provide all the # functionality we need. However, this leads to problems on systems # where the linker searches /usr/local/lib, but the compiler doesn't # search /usr/local/include, if ncurses is installed in /usr/local. A # default installation of ncurses on alpha*-dec-osf* will lead to such # a situation. AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses]) if test "$ac_cv_search_waddstr" != no; then curses_found=yes fi fi # Check whether we should enable the TUI, but only do so if we really # can. if test x"$enable_tui" != xno; then if test -d $srcdir/tui; then if test "$curses_found" != no; then CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)" CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)" CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)" ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)" else if test x"$enable_tui" = xyes; then AC_MSG_ERROR([no enhanced curses library found; disable TUI]) else AC_MSG_WARN([no enhanced curses library found; disabling TUI]) fi fi fi fi # Since GDB uses Readline, we need termcap functionality. In many # cases this will be provided by the curses library, but some systems # have a seperate termcap library, or no curses library at all. case $host_os in cygwin*) if test -d $srcdir/libtermcap; then LIBS="../libtermcap/libtermcap.a $LIBS" ac_cv_search_tgetent="../libtermcap/libtermcap.a" fi ;; go32* | *djgpp*) ac_cv_search_tgetent="none required" ;; *mingw32*) ac_cv_search_tgetent="none required" CONFIG_OBS="$CONFIG_OBS windows-termcap.o" ;; esac # These are the libraries checked by Readline. AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses]) if test "$ac_cv_search_tgetent" = no; then AC_MSG_ERROR([no termcap library found]) fi AC_ARG_WITH([system-readline], [AS_HELP_STRING([--with-system-readline], [use installed readline library])]) if test "$with_system_readline" = yes; then READLINE=-lreadline READLINE_DEPS= READLINE_CFLAGS= READLINE_TEXI_INCFLAG= else READLINE='$(READLINE_DIR)/libreadline.a' READLINE_DEPS='$(READLINE)' READLINE_CFLAGS='-I$(READLINE_SRC)/..' READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)' fi AC_SUBST(READLINE) AC_SUBST(READLINE_DEPS) AC_SUBST(READLINE_CFLAGS) AC_SUBST(READLINE_TEXI_INCFLAG) # Generate jit-reader.h # This is typedeffed to GDB_CORE_ADDR in jit-reader.h TARGET_PTR= AC_CHECK_SIZEOF(unsigned long long) AC_CHECK_SIZEOF(unsigned long) AC_CHECK_SIZEOF(unsigned __int128) if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then TARGET_PTR="unsigned long" elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then TARGET_PTR="unsigned long long" elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then TARGET_PTR="unsigned __int128" else TARGET_PTR="unsigned long" fi AC_SUBST(TARGET_PTR) AC_CONFIG_FILES([jit-reader.h:jit-reader.in]) AC_SEARCH_LIBS(dlopen, dl) GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir], [directory to load the JIT readers from], [${libdir}/gdb]) AC_ARG_WITH(expat, AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]), [], [with_expat=auto]) AC_MSG_CHECKING([whether to use expat]) AC_MSG_RESULT([$with_expat]) if test "${with_expat}" = no; then AC_MSG_WARN([expat support disabled; some features may be unavailable.]) HAVE_LIBEXPAT=no else AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"], [XML_Parser p = XML_ParserCreate (0);]) if test "$HAVE_LIBEXPAT" != yes; then if test "$with_expat" = yes; then AC_MSG_ERROR([expat is missing or unusable]) else AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.]) fi else save_LIBS=$LIBS LIBS="$LIBS $LIBEXPAT" AC_CHECK_FUNCS(XML_StopParser) LIBS=$save_LIBS fi fi dnl Utility to simplify finding libpython. dnl $1 = pythonX.Y dnl $2 = the shell variable to assign the result to dnl If libpython is found we store $version here. dnl $3 = additional flags to add to CPPFLAGS dnl $4 = additional flags to add to LIBS AC_DEFUN([AC_TRY_LIBPYTHON], [ version=$1 define([have_libpython_var],$2) new_CPPFLAGS=$3 new_LIBS=$4 AC_MSG_CHECKING([for ${version}]) save_CPPFLAGS=$CPPFLAGS save_LIBS=$LIBS CPPFLAGS="$CPPFLAGS $new_CPPFLAGS" LIBS="$LIBS $new_LIBS" found_usable_python=no AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]], [[Py_Initialize ();]]), [have_libpython_var=${version} found_usable_python=yes PYTHON_CPPFLAGS=$new_CPPFLAGS PYTHON_LIBS=$new_LIBS]) CPPFLAGS=$save_CPPFLAGS LIBS=$save_LIBS AC_MSG_RESULT([${found_usable_python}]) ]) dnl There are several different values for --with-python: dnl dnl no - Don't include python support. dnl yes - Include python support, error if it's missing. dnl If we find python in $PATH, use it to fetch configure options, dnl otherwise assume the compiler can find it with no help from us. dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn. dnl auto - Same as "yes", but if python is missing from the system, dnl fall back to "no". dnl /path/to/python/exec-prefix - dnl Use the python located in this directory. dnl If /path/to/python/exec-prefix/bin/python exists, use it to find dnl the compilation parameters. Otherwise use dnl -I/path/to/python/exec-prefix/include, dnl -L/path/to/python/exec-prefix/lib. dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn. dnl NOTE: This case is historical. It is what was done for 7.0/7.1 dnl but is deprecated. dnl /path/to/python/executable - dnl Run python-config.py with this version of python to fetch the dnl compilation parameters. dnl NOTE: This needn't be the real python executable. dnl In a cross-compilation scenario (build != host), this could be dnl a shell script that provides what python-config.py provides for dnl --ldflags, --includes, --exec-prefix. dnl python-executable - dnl Find python-executable in $PATH, and then handle the same as dnl /path/to/python/executable. dnl dnl If a python program is specified, it is used to run python-config.py and dnl is passed --ldflags, --includes, --exec-prefix. AC_ARG_WITH(python, AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/)]), [], [with_python=auto]) AC_MSG_CHECKING([whether to use python]) AC_MSG_RESULT([$with_python]) if test "${with_python}" = no; then AC_MSG_WARN([python support disabled; some features may be unavailable.]) have_libpython=no else case "${with_python}" in [[\\/]]* | ?:[[\\/]]*) if test -d ${with_python}; then # Assume the python binary is ${with_python}/bin/python. python_prog="${with_python}/bin/python" python_prefix= # If python does not exit ${with_python}/bin, then try in # ${with_python}. On Windows/MinGW, this is where the Python # executable is. if test ! -x "${python_prog}"; then python_prog="${with_python}/python" python_prefix= fi if test ! -x "${python_prog}"; then # Fall back to gdb 7.0/7.1 behaviour. python_prog=missing python_prefix=${with_python} fi elif test -x "${with_python}"; then # While we can't run python compiled for $host (unless host == build), # the user could write a script that provides the needed information, # so we support that. python_prog=${with_python} python_prefix= else AC_ERROR(invalid value for --with-python) fi ;; */*) # Disallow --with-python=foo/bar. AC_ERROR(invalid value for --with-python) ;; *) # The user has either specified auto, yes, or the name of the python # program assumed to be in $PATH. python_prefix= case "${with_python}" in yes | auto) if test ${build} = ${host}; then AC_PATH_PROG(python_prog_path, python, missing) if test "${python_prog_path}" = missing; then python_prog=missing else python_prog=${python_prog_path} fi else # Not much we can do except assume the cross-compiler will find the # right files. python_prog=missing fi ;; *) # While we can't run python compiled for $host (unless host == build), # the user could write a script that provides the needed information, # so we support that. python_prog="${with_python}" AC_PATH_PROG(python_prog_path, ${python_prog}, missing) if test "${python_prog_path}" = missing; then AC_ERROR(unable to find python program ${python_prog}) fi ;; esac esac if test "${python_prog}" != missing; then # We have a python program to use, but it may be too old. # Don't flag an error for --with-python=auto (the default). have_python_config=yes python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes` if test $? != 0; then have_python_config=failed if test "${with_python}" != auto; then AC_ERROR(failure running python-config --includes) fi fi python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags` if test $? != 0; then have_python_config=failed if test "${with_python}" != auto; then AC_ERROR(failure running python-config --ldflags) fi fi python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix` if test $? != 0; then have_python_config=failed if test "${with_python}" != auto; then AC_ERROR(failure running python-config --exec-prefix) fi fi else # We do not have a python executable we can use to determine where # to find the Python headers and libs. We cannot guess the include # path from the python_prefix either, because that include path # depends on the Python version. So, there is nothing much we can # do except assume that the compiler will be able to find those files. python_includes= python_libs= have_python_config=no fi # If we have python-config, only try the configuration it provides. # Otherwise fallback on the old way of trying different versions of # python in turn. have_libpython=no if test "${have_python_config}" = yes; then # Determine the Python version by extracting "-lpython" # part of the python_libs. is usually X.Y with X and Y # being decimal numbers, but can also be XY (seen on Windows). # # The extraction is performed using sed with a regular expression. # Initially, the regexp used was using the '?' quantifier to make # the dot in the version number optional. Unfortunately, this # does not work with non-GNU versions of sed because, because of # what looks like a limitation (the '?' quantifier does not work # with back-references). We work around this limitation by using # the '*' quantifier instead. It means that, in theory, we might # match unexpected version strings such as "-lpython2..7", but # this seems unlikely in practice. And even if that happens, # an error will be triggered later on, when checking that version # number. python_version=`echo " ${python_libs} " \ | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'` case "${python_version}" in python*) AC_TRY_LIBPYTHON(${python_version}, have_libpython, ${python_includes}, ${python_libs}) ;; *) AC_MSG_ERROR([unable to determine python version from ${python_libs}]) ;; esac elif test "${have_python_config}" != failed; then if test "${have_libpython}" = no; then AC_TRY_LIBPYTHON(python2.7, have_libpython, ${python_includes}, "${python_libs} -lpython2.7") fi if test "${have_libpython}" = no; then AC_TRY_LIBPYTHON(python2.6, have_libpython, ${python_includes}, "${python_libs} -lpython2.6") fi if test ${have_libpython} = no; then AC_TRY_LIBPYTHON(python2.5, have_libpython, ${python_includes}, "${python_libs} -lpython2.5") fi if test ${have_libpython} = no; then AC_TRY_LIBPYTHON(python2.4, have_libpython, ${python_includes}, "${python_libs} -lpython2.4") fi fi if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.]) elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.]) elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.]) elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.]) fi if test "${have_libpython}" = no; then case "${with_python}" in yes) AC_MSG_ERROR([python is missing or unusable]) ;; auto) AC_MSG_WARN([python is missing or unusable; some features may be unavailable.]) ;; *) AC_MSG_ERROR([no usable python found at ${with_python}]) ;; esac else if test -n "${python_prefix}"; then AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}", [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.]) GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix}) fi fi fi if test "${have_libpython}" != no; then AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.]) CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)" CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)" CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)" CONFIG_INSTALL="$CONFIG_INSTALL install-python" ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)" # Flags needed to compile Python code (taken from python-config --cflags). # We cannot call python-config directly because it will output whatever was # used when compiling the Python interpreter itself, including flags which # would make the python-related objects be compiled differently from the # rest of GDB (e.g., -O2 and -fPIC). if test "${GCC}" = yes; then tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv" fi if test "x${tentative_python_cflags}" != x; then AC_MSG_CHECKING(compiler flags for python code) for flag in ${tentative_python_cflags}; do # Check that the compiler accepts it saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $flag" AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",) CFLAGS="$saved_CFLAGS" done AC_MSG_RESULT(${PYTHON_CFLAGS}) fi # On IRIX, type siginfo is not defined. Instead, sys/siginfo.h provides: # #if _SGIAPI # #define siginfo __siginfo # #endif # The problem is that including Python causes some XOPEN macros to be # unilaterally defined, and that in turn causes _SGIAPI to evaluate # to false. So, we work around this issue by defining siginfo ourself # though the command-line. # # On x64 Windows, Python's include headers, and pyconfig.h in # particular, rely on MS_WIN64 macro to detect that it's a 64bit # version of Windows. Unfortunately, MS_WIN64 is only defined if # _MSC_VER, a Microsoft-specific macro, is defined. So, when # building on x64 Windows with GCC, we define MS_WIN64 ourselves. # The issue was reported to the Python community, but still isn't # solved as of 2012-10-02 (http://bugs.python.org/issue4709). case "$gdb_host" in irix*) if test "${GCC}" = yes; then CPPFLAGS="$CPPFLAGS -Dsiginfo=__siginfo" fi ;; mingw64) if test "${GCC}" = yes; then CPPFLAGS="$CPPFLAGS -DMS_WIN64" fi ;; esac # Note that "python -m threading" cannot be used to check for # threading support due to a bug in Python 2.7.3 # (http://bugs.python.org/issue15567). AC_MSG_CHECKING(whether python supports threads) saved_CPPFLAGS="${CPPFLAGS}" CPPFLAGS="${PYTHON_CPPFLAGS}" # Note that the test is reversed so that python_has_threads=yes on # unexpected failures. AC_PREPROC_IFELSE(AC_LANG_SOURCE([[ #include #ifdef WITH_THREAD # error #endif ]]), [python_has_threads=no], [python_has_threads=yes]) AC_MSG_RESULT(${python_has_threads}) CPPFLAGS="${saved_CPPFLAGS}" else # Even if Python support is not compiled in, we need to have these files # included. CONFIG_OBS="$CONFIG_OBS python.o py-value.o py-prettyprint.o py-auto-load.o" CONFIG_SRCS="$CONFIG_SRCS python/python.c python/py-value.c \ python/py-prettyprint.c python/py-auto-load.c" fi AC_SUBST(PYTHON_CFLAGS) AC_SUBST(PYTHON_CPPFLAGS) AC_SUBST(PYTHON_LIBS) # Provide a --enable-libmcheck/--disable-libmcheck set of options # allowing a user to enable this option even when building releases, # or to disable it when building a snapshot. AC_ARG_ENABLE(libmcheck, AS_HELP_STRING([--enable-libmcheck], [Try building GDB with -lmcheck if available]), [case "${enableval}" in yes | y) ENABLE_LIBMCHECK="yes" ;; no | n) ENABLE_LIBMCHECK="no" ;; *) AC_MSG_ERROR(bad value ${enableval} for --enable-libmcheck) ;; esac]) # Enable -lmcheck by default (it provides cheap-enough memory mangling), # but turn it off if Python is enabled with threads, since -lmcheck is # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939), # and for releases. if test -z "${ENABLE_LIBMCHECK}" \ -a \( "${have_libpython}" = "no" \ -o "${python_has_threads}" = "no" \) \ && $development; then ENABLE_LIBMCHECK=yes fi if test "$ENABLE_LIBMCHECK" = "yes" ; then if test "${have_libpython}" != "no" -a "${python_has_threads}" = "yes" ; then AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python) fi AC_CHECK_LIB(mcheck, main) fi # ------------------------- # # Checks for header files. # # ------------------------- # AC_HEADER_DIRENT AC_HEADER_STDC # elf_hp.h is for HP/UX 64-bit shared library support. AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h sys/socket.h proc_service.h \ thread_db.h signal.h stddef.h \ stdlib.h string.h memory.h strings.h sys/fault.h \ sys/file.h sys/filio.h sys/ioctl.h sys/param.h \ sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \ sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \ sys/types.h sys/wait.h wait.h termios.h termio.h \ sgtty.h unistd.h elf_hp.h locale.h \ dlfcn.h sys/un.h linux/perf_event.h]) AC_CHECK_HEADERS(link.h, [], [], [#if HAVE_SYS_TYPES_H # include #endif #if HAVE_NLIST_H # include #endif ]) AC_CHECK_HEADERS(sys/proc.h, [], [], [#if HAVE_SYS_PARAM_H # include #endif ]) AC_CHECK_HEADERS(sys/user.h, [], [], [#if HAVE_SYS_PARAM_H # include #endif ]) # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash # between and that would cause AC_CHECK_HEADERS to # think that we don't have if we're using GCC. case $host_os in solaris2.[[789]]) if test "$GCC" = yes; then AC_DEFINE(_MSE_INT_H, 1, [Define to 1 to avoid a clash between and on Solaris 2.[789] when using GCC. ]) fi ;; esac AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h) AC_CHECK_HEADERS(term.h, [], [], [#if HAVE_CURSES_H # include #endif ]) # ------------------------- # # Checks for declarations. # # ------------------------- # AC_CHECK_DECLS([free, malloc, realloc, strerror, strstr, getopt, snprintf, vsnprintf]) AM_LC_MESSAGES # ----------------------- # # Checks for structures. # # ----------------------- # AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize]) # ------------------ # # Checks for types. # # ------------------ # AC_TYPE_SIGNAL AC_CHECK_TYPES(socklen_t, [], [], [#include #include ]) # ------------------------------------- # # Checks for compiler characteristics. # # ------------------------------------- # AC_C_CONST AC_C_INLINE AC_C_BIGENDIAN # ------------------------------ # # Checks for library functions. # # ------------------------------ # AC_FUNC_ALLOCA AC_FUNC_MMAP AC_FUNC_VFORK AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \ pipe poll pread pread64 pwrite readlink resize_term \ sbrk setpgid setpgrp setsid \ sigaction sigprocmask sigsetmask socketpair syscall \ ttrace wborder wresize setlocale iconvlist libiconvlist btowc \ setrlimit getrlimit posix_madvise waitpid lstat \ fdwalk pipe2]) AM_LANGINFO_CODESET # Check the return and argument types of ptrace. No canned test for # this, so roll our own. gdb_ptrace_headers=' #if HAVE_SYS_TYPES_H # include #endif #if HAVE_SYS_PTRACE_H # include #endif #if HAVE_UNISTD_H # include #endif ' # There is no point in checking if we don't have a prototype. AC_CHECK_DECLS(ptrace, [], [ : ${gdb_cv_func_ptrace_ret='int'} : ${gdb_cv_func_ptrace_args='int,int,long,long'} ], $gdb_ptrace_headers) # Check return type. Varargs (used on GNU/Linux) conflict with the # empty argument list, so check for that explicitly. AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret, AC_TRY_COMPILE($gdb_ptrace_headers, [extern long ptrace (enum __ptrace_request, ...);], gdb_cv_func_ptrace_ret='long', AC_TRY_COMPILE($gdb_ptrace_headers, [extern int ptrace ();], gdb_cv_func_ptrace_ret='int', gdb_cv_func_ptrace_ret='long'))) AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret, [Define as the return type of ptrace.]) # Check argument types. AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [ AC_TRY_COMPILE($gdb_ptrace_headers, [extern long ptrace (enum __ptrace_request, ...);], [gdb_cv_func_ptrace_args='int,int,long,long'],[ for gdb_arg1 in 'int' 'long'; do for gdb_arg2 in 'pid_t' 'int' 'long'; do for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do for gdb_arg4 in 'int' 'long'; do AC_TRY_COMPILE($gdb_ptrace_headers, [ extern $gdb_cv_func_ptrace_ret ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4); ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4"; break 4;]) for gdb_arg5 in 'int *' 'int' 'long'; do AC_TRY_COMPILE($gdb_ptrace_headers, [ extern $gdb_cv_func_ptrace_ret ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5); ], [ gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5"; break 5;]) done done done done done # Provide a safe default value. : ${gdb_cv_func_ptrace_args='int,int,long,long'} ])]) ac_save_IFS=$IFS; IFS=',' set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'` IFS=$ac_save_IFS shift AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3], [Define to the type of arg 3 for ptrace.]) if test -n "$[5]"; then AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5], [Define to the type of arg 5 for ptrace.]) fi dnl AC_FUNC_SETPGRP does not work when cross compiling dnl Instead, assume we will have a prototype for setpgrp if cross compiling. if test "$cross_compiling" = no; then AC_FUNC_SETPGRP else AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void, [AC_TRY_COMPILE([ #include ], [ if (setpgrp(1,1) == -1) exit (0); else exit (1); ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)]) if test $ac_cv_func_setpgrp_void = yes; then AC_DEFINE(SETPGRP_VOID, 1) fi fi # Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't do # since sigsetjmp might only be defined as a macro. AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp, [AC_TRY_COMPILE([ #include ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);], gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)]) if test $gdb_cv_func_sigsetjmp = yes; then AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ]) fi # Assume we'll default to using the included libiberty regex. gdb_use_included_regex=yes # However, if the system regex is GNU regex, then default to *not* # using the included regex. AC_CACHE_CHECK( [for GNU regex], [gdb_cv_have_gnu_regex], [AC_TRY_COMPILE( [#include ], [#define REGEX_INTERFACE_VERSION 1 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION # error "Version mismatch" #endif], gdb_cv_have_gnu_regex=yes, gdb_cv_have_gnu_regex=no)]) if test $gdb_cv_have_gnu_regex = yes; then gdb_use_included_regex=no fi AC_ARG_WITH(included-regex, AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]), gdb_with_regex=$withval, gdb_with_regex=$gdb_use_included_regex) if test "$gdb_with_regex" = yes; then AC_DEFINE(USE_INCLUDED_REGEX, 1, [Define to 1 if the regex included in libiberty should be used.]) fi # Check if defines `struct thread' with a td_pcb member. AC_CHECK_MEMBERS([struct thread.td_pcb], [], [], [#include #include ]) # See if defines `struct lwp`. AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp, [AC_TRY_COMPILE([#include #include ], [struct lwp l;], gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)]) if test $gdb_cv_struct_lwp = yes; then AC_DEFINE(HAVE_STRUCT_LWP, 1, [Define to 1 if your system has struct lwp.]) fi # See if degines `struct reg'. AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg, [AC_TRY_COMPILE([#include #include ], [struct reg r;], gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)]) if test $gdb_cv_struct_reg = yes; then AC_DEFINE(HAVE_STRUCT_REG, 1, [Define to 1 if your system has struct reg in .]) fi # See if supports the %fs and %gs i386 segment registers. # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'. AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [], [#include ]) # See if supports the %fs_base and %gs_bas amd64 segment registers. # Older amd64 Linux's don't have the fs_base and gs_base members of # `struct user_regs_struct'. AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base], [], [], [#include ]) # See if provides the PTRACE_GETREGS request. AC_MSG_CHECKING(for PTRACE_GETREGS) AC_CACHE_VAL(gdb_cv_have_ptrace_getregs, [AC_TRY_COMPILE([#include ], [PTRACE_GETREGS;], [gdb_cv_have_ptrace_getregs=yes], [gdb_cv_have_ptrace_getregs=no])]) AC_MSG_RESULT($gdb_cv_have_ptrace_getregs) if test $gdb_cv_have_ptrace_getregs = yes; then AC_DEFINE(HAVE_PTRACE_GETREGS, 1, [Define if sys/ptrace.h defines the PTRACE_GETREGS request.]) fi # See if provides the PTRACE_GETFPXREGS request. AC_MSG_CHECKING(for PTRACE_GETFPXREGS) AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs, [AC_TRY_COMPILE([#include ], [PTRACE_GETFPXREGS;], [gdb_cv_have_ptrace_getfpxregs=yes], [gdb_cv_have_ptrace_getfpxregs=no])]) AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs) if test $gdb_cv_have_ptrace_getfpxregs = yes; then AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1, [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.]) fi # See if provides the PT_GETDBREGS request. AC_MSG_CHECKING(for PT_GETDBREGS) AC_CACHE_VAL(gdb_cv_have_pt_getdbregs, [AC_TRY_COMPILE([#include #include ], [PT_GETDBREGS;], [gdb_cv_have_pt_getdbregs=yes], [gdb_cv_have_pt_getdbregs=no])]) AC_MSG_RESULT($gdb_cv_have_pt_getdbregs) if test $gdb_cv_have_pt_getdbregs = yes; then AC_DEFINE(HAVE_PT_GETDBREGS, 1, [Define if sys/ptrace.h defines the PT_GETDBREGS request.]) fi # See if provides the PT_GETXMMREGS request. AC_MSG_CHECKING(for PT_GETXMMREGS) AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs, [AC_TRY_COMPILE([#include #include ], [PT_GETXMMREGS;], [gdb_cv_have_pt_getxmmregs=yes], [gdb_cv_have_pt_getxmmregs=no])]) AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs) if test $gdb_cv_have_pt_getxmmregs = yes; then AC_DEFINE(HAVE_PT_GETXMMREGS, 1, [Define if sys/ptrace.h defines the PT_GETXMMREGS request.]) fi # Detect which type of /proc is in use, such as for Solaris. if test "${target}" = "${host}"; then case "${host}" in *-*-sysv4.2* | *-*-sysv5* | *-*-interix* ) AC_DEFINE(NEW_PROC_API, 1, [Define if you want to use new multi-fd /proc interface (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).]) ;; *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*) AC_DEFINE(NEW_PROC_API, 1, [Define if you want to use new multi-fd /proc interface (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).]) ;; mips-sgi-irix5*) # Work around needing _KMEMUSER problem on IRIX 5. AC_DEFINE([_KMEMUSER], 1, [Define to 1 so gets a definition of anon_hdl. Works around a problem on IRIX 5.]) ;; esac fi if test "$ac_cv_header_sys_procfs_h" = yes; then BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t) BFD_HAVE_SYS_PROCFS_TYPE(prrun_t) BFD_HAVE_SYS_PROCFS_TYPE(gregset_t) BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t) BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t) BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t) BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t) BFD_HAVE_SYS_PROCFS_TYPE(prfpregset32_t) BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t) BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t) BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t) BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t) BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t) BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_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 $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then AC_MSG_CHECKING(whether prfpregset_t type is broken) AC_CACHE_VAL(gdb_cv_prfpregset_t_broken, [AC_TRY_RUN([#include int main () { if (sizeof (prfpregset_t) == sizeof (void *)) return 1; return 0; }], gdb_cv_prfpregset_t_broken=no, gdb_cv_prfpregset_t_broken=yes, gdb_cv_prfpregset_t_broken=yes)]) AC_MSG_RESULT($gdb_cv_prfpregset_t_broken) if test $gdb_cv_prfpregset_t_broken = yes; then AC_DEFINE(PRFPREGSET_T_BROKEN, 1, [Define if the prfpregset_t type is broken.]) fi fi dnl Check for PIOCSET ioctl entry AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h) AC_CACHE_VAL(gdb_cv_have_procfs_piocset, [AC_TRY_COMPILE([#include #include #include ], [ int dummy;; dummy = ioctl(0, PIOCSET, &dummy); ], gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)]) AC_MSG_RESULT($gdb_cv_have_procfs_piocset) if test $gdb_cv_have_procfs_piocset = yes; then AC_DEFINE(HAVE_PROCFS_PIOCSET, 1, [Define if ioctl argument PIOCSET is available.]) fi fi dnl For native ports (host == target), check to see what kind of dnl legacy link.h support is needed. (See solib-legacy.c.) if test ${host} = ${target} ; then dnl Check for struct link_map with l_ members which are indicative dnl of SVR4-like shared libraries AC_MSG_CHECKING(for member l_addr in struct link_map) AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_l_members, [AC_TRY_COMPILE([#include ], [struct link_map lm; (void) lm.l_addr;], gdb_cv_have_struct_link_map_with_l_members=yes, gdb_cv_have_struct_link_map_with_l_members=no)]) AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_l_members) if test $gdb_cv_have_struct_link_map_with_l_members = yes; then AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS,1, [Define if exists and defines struct link_map which has members with an ``l_'' prefix. (For Solaris, SVR4, and SVR4-like systems.)]) fi dnl Check for struct link_map with lm_ members which are indicative dnl of SunOS-like shared libraries AC_MSG_CHECKING(for member lm_addr in struct link_map) AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_lm_members, [AC_TRY_COMPILE([#include #include ], [struct link_map lm; (void) lm.lm_addr;], gdb_cv_have_struct_link_map_with_lm_members=yes, gdb_cv_have_struct_link_map_with_lm_members=no)]) AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_lm_members) if test $gdb_cv_have_struct_link_map_with_lm_members = yes; then AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS, 1, [Define if exists and defines struct link_map which has members with an ``lm_'' prefix. (For SunOS.)]) fi dnl Check for struct so_map with som_ members which are found on dnl some *BSD systems. AC_MSG_CHECKING(for member som_addr in struct so_map) AC_CACHE_VAL(gdb_cv_have_struct_so_map_with_som_members, [AC_TRY_COMPILE([#include #ifdef HAVE_NLIST_H #include #endif #include ], [struct so_map lm; (void) lm.som_addr;], gdb_cv_have_struct_so_map_with_som_members=yes, gdb_cv_have_struct_so_map_with_som_members=no)]) AC_MSG_RESULT($gdb_cv_have_struct_so_map_with_som_members) if test $gdb_cv_have_struct_so_map_with_som_members = yes; then AC_DEFINE(HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS, 1, [Define if exists and defines a struct so_map which has members with an ``som_'' prefix. (Found on older *BSD systems.)]) fi dnl Check for struct link_map32 type, which allows a 64-bit Solaris dnl debugger to debug a 32-bit Solaris app with 32-bit shared libraries. AC_MSG_CHECKING(for struct link_map32 in sys/link.h) AC_CACHE_VAL(gdb_cv_have_struct_link_map32, [AC_TRY_COMPILE([#define _SYSCALL32 #include ], [struct link_map32 l;], gdb_cv_have_struct_link_map32=yes, gdb_cv_have_struct_link_map32=no)]) AC_MSG_RESULT($gdb_cv_have_struct_link_map32) if test $gdb_cv_have_struct_link_map32 = yes; then AC_DEFINE(HAVE_STRUCT_LINK_MAP32, 1, [Define if has struct link_map32]) AC_DEFINE(_SYSCALL32, 1, [Define if has link_map32 (solaris sparc-64 target)]) fi fi # Check if the compiler supports the `long long' type. AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [[extern long long foo;]], [[switch (foo & 2) { case 0: return 1; }]])], gdb_cv_c_long_long=yes, gdb_cv_c_long_long=no)]) if test $gdb_cv_c_long_long != yes; then # libdecnumber requires long long. AC_MSG_ERROR([Compiler must support long long for GDB.]) fi # Check if the compiler and runtime support printing long longs. AC_CACHE_CHECK([for long long support in printf], gdb_cv_printf_has_long_long, [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[char buf[32]; long long l = 0; l = (l << 16) + 0x0123; l = (l << 16) + 0x4567; l = (l << 16) + 0x89ab; l = (l << 16) + 0xcdef; sprintf (buf, "0x%016llx", l); return (strcmp ("0x0123456789abcdef", buf));]])], gdb_cv_printf_has_long_long=yes, gdb_cv_printf_has_long_long=no, gdb_cv_printf_has_long_long=no)]) if test $gdb_cv_printf_has_long_long = yes; then AC_DEFINE(PRINTF_HAS_LONG_LONG, 1, [Define to 1 if the "%ll" format works to print long longs.]) fi # Check if the compiler and runtime support printing decfloats. AC_CACHE_CHECK([for decfloat support in printf], gdb_cv_printf_has_decfloat, [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[char buf[64]; _Decimal32 d32 = 1.2345df; _Decimal64 d64 = 1.2345dd; _Decimal128 d128 = 1.2345dl; sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128); return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])], gdb_cv_printf_has_decfloat=yes, gdb_cv_printf_has_decfloat=no, gdb_cv_printf_has_decfloat=no)]) if test $gdb_cv_printf_has_decfloat = yes; then AC_DEFINE(PRINTF_HAS_DECFLOAT, 1, [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.]) fi # Check if the compiler supports the `long double' type. We can't use # AC_C_LONG_DOUBLE because that one does additional checks on the # constants defined in that fail on some systems, # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6. AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])], gdb_cv_c_long_double=yes, gdb_cv_c_long_double=no)]) if test $gdb_cv_c_long_double = yes; then AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define to 1 if the compiler supports long double.]) fi # Check if the compiler and runtime support printing long doubles. AC_CACHE_CHECK([for long double support in printf], gdb_cv_printf_has_long_double, [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[char buf[16]; long double f = 3.141592653; sprintf (buf, "%Lg", f); return (strncmp ("3.14159", buf, 7));]])], gdb_cv_printf_has_long_double=yes, gdb_cv_printf_has_long_double=no, gdb_cv_printf_has_long_double=no)]) if test $gdb_cv_printf_has_long_double = yes; then AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1, [Define to 1 if the "%Lg" format works to print long doubles.]) fi # Check if the compiler and runtime support scanning long doubles. AC_CACHE_CHECK([for long double support in scanf], gdb_cv_scanf_has_long_double, [AC_RUN_IFELSE([AC_LANG_PROGRAM( [[#include ]], [[char *buf = "3.141592653"; long double f = 0; sscanf (buf, "%Lg", &f); return !(f > 3.14159 && f < 3.14160);]])], gdb_cv_scanf_has_long_double=yes, gdb_cv_scanf_has_long_double=no, gdb_cv_scanf_has_long_double=no)]) if test $gdb_cv_scanf_has_long_double = yes; then AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1, [Define to 1 if the "%Lg" format works to scan long doubles.]) fi case ${host_os} in aix*) AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [ SAVE_LDFLAGS=$LDFLAGS case $GCC in yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;; *) gdb_cv_bigtoc=-bbigtoc ;; esac LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=]) LDFLAGS="${SAVE_LDFLAGS}" ]) CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}" ;; esac AC_MSG_CHECKING(for the dynamic export flag) dynamic_list=false if test "${gdb_native}" = yes; then # The dynamically loaded libthread_db needs access to symbols in the gdb # executable. Older GNU ld supports --export-dynamic but --dynamic-list # may not be supported there. old_LDFLAGS="$LDFLAGS" # Older GNU ld supports --export-dynamic but --dynamic-list it does not. RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list" LDFLAGS="$LDFLAGS $RDYNAMIC" if test "${have_libpython}" = no; then AC_TRY_LINK([], [], [dynamic_list=true]) else # Workaround http://bugs.python.org/issue4434 where static # libpythonX.Y.a would get its symbols required for # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list. # Problem does not happen for the recommended libpythonX.Y.so linkage. old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PYTHON_CFLAGS" old_LIBS="$LIBS" LIBS="$LIBS $PYTHON_LIBS" AC_RUN_IFELSE( AC_LANG_PROGRAM( [#include "]${have_libpython}[/Python.h"], [int err; Py_Initialize (); err = PyRun_SimpleString ("import itertools\n"); Py_Finalize (); return err == 0 ? 0 : 1;]), [dynamic_list=true], [], [true]) LIBS="$old_LIBS" CFLAGS="$old_CFLAGS" fi LDFLAGS="$old_LDFLAGS" fi if $dynamic_list; then found="-Wl,--dynamic-list" RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list' else found="-rdynamic" RDYNAMIC="-rdynamic" fi AC_SUBST(RDYNAMIC) AC_MSG_RESULT($found) dnl For certain native configurations, we need to check whether thread dnl support can be built in or not. dnl dnl Note that we only want this if we are both native (host == target), dnl and not doing a canadian cross build (build == host). if test ${build} = ${host} -a ${host} = ${target} ; then case ${host_os} in solaris*) # See if thread_db library is around for Solaris thread debugging. # Note that we must explicitly test for version 1 of the library # because version 0 (present on Solaris 2.4 or earlier) doesn't have # the same API. AC_MSG_CHECKING(for Solaris thread debugging library) if test -f /usr/lib/libthread_db.so.1 ; then AC_MSG_RESULT(yes) AC_DEFINE(HAVE_THREAD_DB_LIB, 1, [Define if using Solaris thread debugging.]) CONFIG_OBS="${CONFIG_OBS} sol-thread.o" CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c" AC_CHECK_LIB(dl, dlopen) CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC" # Sun randomly tweaked the prototypes in # at one point. AC_MSG_CHECKING(if is old) AC_CACHE_VAL(gdb_cv_proc_service_is_old,[ AC_TRY_COMPILE([ #include ps_err_e ps_pdwrite (struct ps_prochandle*, psaddr_t, const void*, size_t); ],, gdb_cv_proc_service_is_old=no, gdb_cv_proc_service_is_old=yes) ]) AC_MSG_RESULT($gdb_cv_proc_service_is_old) if test $gdb_cv_proc_service_is_old = yes; then AC_DEFINE(PROC_SERVICE_IS_OLD, 1, [Define if on solaris uses int instead of size_t, and assorted other type changes.]) fi else AC_MSG_RESULT(no) fi ;; aix*) AC_MSG_CHECKING(for AiX thread debugging library) AC_CACHE_VAL(gdb_cv_have_aix_thread_debug, [AC_TRY_COMPILE([#include ], [#ifndef PTHDB_VERSION_3 #error #endif], gdb_cv_have_aix_thread_debug=yes, gdb_cv_have_aix_thread_debug=no)]) AC_MSG_RESULT($gdb_cv_have_aix_thread_debug) if test $gdb_cv_have_aix_thread_debug = yes; then CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c" CONFIG_OBS="${CONFIG_OBS} aix-thread.o" LIBS="$LIBS -lpthdebug" # Older versions of AIX do not provide the declaration for # the getthrds function (it appears that it was introduced # with AIX 6.x). AC_CHECK_DECLS(getthrds, [], [], [[#include ]]) fi ;; esac AC_SUBST(CONFIG_LDFLAGS) fi dnl See if we have a thread_db header file that has TD_NOTALLOC and dnl other error codes. if test "x$ac_cv_header_thread_db_h" = "xyes"; then AC_CACHE_CHECK([whether has TD_NOTALLOC], gdb_cv_thread_db_h_has_td_notalloc, AC_TRY_COMPILE( [#include ], [int i = TD_NOTALLOC;], gdb_cv_thread_db_h_has_td_notalloc=yes, gdb_cv_thread_db_h_has_td_notalloc=no ) ) AC_CACHE_CHECK([whether has TD_VERSION], gdb_cv_thread_db_h_has_td_version, AC_TRY_COMPILE( [#include ], [int i = TD_VERSION;], gdb_cv_thread_db_h_has_td_version=yes, gdb_cv_thread_db_h_has_td_version=no ) ) AC_CACHE_CHECK([whether has TD_NOTLS], gdb_cv_thread_db_h_has_td_notls, AC_TRY_COMPILE( [#include ], [int i = TD_NOTLS;], gdb_cv_thread_db_h_has_td_notls=yes, gdb_cv_thread_db_h_has_td_notls=no ) ) fi if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1, [Define if has the TD_NOTALLOC error code.]) fi if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1, [Define if has the TD_VERSION error code.]) fi if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1, [Define if has the TD_NOTLS error code.]) fi dnl See if we have a sys/syscall header file that has __NR_tkill. if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then AC_CACHE_CHECK([whether has __NR_tkill], gdb_cv_sys_syscall_h_has_tkill, AC_TRY_COMPILE( [#include ], [int i = __NR_tkill;], gdb_cv_sys_syscall_h_has_tkill=yes, gdb_cv_sys_syscall_h_has_tkill=no ) ) fi dnl See if we can issue tkill syscall. if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.]) fi dnl Check if we can disable the virtual address space randomization. dnl The functionality of setarch -R. AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include ]) define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include ], [ # 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], [have_personality=true], [have_personality=false], [AC_LINK_IFELSE([PERSONALITY_TEST], [have_personality=true], [have_personality=false])]) if $have_personality then AC_DEFINE([HAVE_PERSONALITY], 1, [Define if you support the personality syscall.]) fi dnl Handle optional features that can be enabled. # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR, # except that the argument to --with-sysroot is optional. # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path. if test "x$with_sysroot" = xyes; then with_sysroot="${exec_prefix}/${target_alias}/sys-root" fi AC_ARG_WITH(sysroot, AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@], [search for usr/lib et al within DIR]), [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=]) AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT, [search for usr/lib et al within DIR]) AC_SUBST(TARGET_SYSTEM_ROOT) GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir}) GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit, [automatically load a system-wide gdbinit file], []) AC_ARG_ENABLE(werror, AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]), [case "${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 # The entries after -Wno-pointer-sign are disabled warnings which may # be enabled in the future, which can not currently be used to build # GDB. # NOTE: If you change this list, remember to update # gdb/doc/gdbint.texinfo. build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \ -Wpointer-sign \ -Wno-unused -Wunused-value -Wunused-function \ -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \ -Wdeclaration-after-statement -Wempty-body" # Enable -Wno-format by default when using gcc on mingw since many # GCC versions complain about %I64. case "${host}" in *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;; *) build_warnings="$build_warnings -Wformat-nonliteral" ;; esac AC_ARG_ENABLE(build-warnings, AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]), [case "${enableval}" in yes) ;; no) build_warnings="-w";; ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"` build_warnings="${build_warnings} ${t}";; *,) t=`echo "${enableval}" | sed -e "s/,/ /g"` build_warnings="${t} ${build_warnings}";; *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;; esac if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then echo "Setting compiler warning flags = $build_warnings" 6>&1 fi])dnl AC_ARG_ENABLE(gdb-build-warnings, AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]), [case "${enableval}" in yes) ;; no) build_warnings="-w";; ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"` build_warnings="${build_warnings} ${t}";; *,) t=`echo "${enableval}" | sed -e "s/,/ /g"` build_warnings="${t} ${build_warnings}";; *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;; esac if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1 fi])dnl WARN_CFLAGS="" if test "x${build_warnings}" != x -a "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) # In the Cygwin environment, we need some additional flags. AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin, [AC_EGREP_CPP(lose, [ #if defined (__CYGWIN__) || defined (__CYGWIN32__) lose #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])]) dnl Figure out which of the many generic ser-*.c files the _host_ supports. SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o" case ${host} in *go32* ) SER_HARDWIRE=ser-go32.o ;; *djgpp* ) SER_HARDWIRE=ser-go32.o ;; *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;; esac AC_SUBST(SER_HARDWIRE) # libreadline needs libuser32.a in a cygwin environment WIN32LIBS= if test x$gdb_cv_os_cygwin = xyes; then WIN32LIBS="-luser32" case "${target}" in *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp" ;; esac fi # The ser-tcp.c module requires sockets. case ${host} in *mingw32*) AC_DEFINE(USE_WIN32API, 1, [Define if we should use the Windows API, instead of the POSIX API. On Windows, we use the Windows API when building for MinGW, but the POSIX API when building for Cygwin.]) WIN32LIBS="$WIN32LIBS -lws2_32" ;; esac AC_SUBST(WIN32LIBS) # Add ELF support to GDB, but only if BFD includes ELF support. GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf, [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h) if test $gdb_cv_var_elf = yes; then CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o" AC_DEFINE(HAVE_ELF, 1, [Define if ELF support should be included.]) # -ldl is provided by bfd/Makfile.am (LIBDL) . if test "$plugins" = "yes"; then AC_SEARCH_LIBS(dlopen, dl) fi fi # Add macho support to GDB, but only if BFD includes it. GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho, [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h) if test $gdb_cv_var_macho = yes; then CONFIG_OBS="$CONFIG_OBS machoread.o" fi # Add SOM support to GDB, but only if BFD includes it. GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som, [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h) if test $gdb_cv_var_som = yes; then CONFIG_OBS="$CONFIG_OBS somread.o" fi # Add any host-specific objects to GDB. CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}" # If building on ELF, look for lzma support for embedded compressed debug info. if test $gdb_cv_var_elf = yes; then AC_ARG_WITH(lzma, AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]), [], [with_lzma=auto]) AC_MSG_CHECKING([whether to use lzma]) AC_MSG_RESULT([$with_lzma]) if test "${with_lzma}" != no; then AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"], [lzma_index_iter iter; lzma_index_iter_init (&iter, 0); lzma_mf_is_supported (LZMA_MF_HC3);]) if test "$HAVE_LIBLZMA" != yes; then if test "$with_lzma" = yes; then AC_MSG_ERROR([missing liblzma for --with-lzma]) fi fi fi fi LIBGUI="../libgui/src/libgui.a" GUI_CFLAGS_X="-I${srcdir}/../libgui/src" AC_SUBST(LIBGUI) AC_SUBST(GUI_CFLAGS_X) WIN32LDAPP= AC_SUBST(WIN32LIBS) AC_SUBST(WIN32LDAPP) case "${host}" in *-*-cygwin* | *-*-mingw* ) configdir="win" ;; *) configdir="unix" ;; esac GDBTKLIBS= if test "${enable_gdbtk}" = "yes"; then # Gdbtk must have an absolute path to srcdir in order to run # properly when not installed. here=`pwd` cd ${srcdir} GDBTK_SRC_DIR=`pwd` cd $here SC_PATH_TCLCONFIG # If $no_tk is nonempty, then we can't do Tk, and there is no # point to doing Tcl. SC_PATH_TKCONFIG if test -z "${no_tcl}" -a -z "${no_tk}"; then SC_LOAD_TCLCONFIG # Check for in-tree tcl here=`pwd` cd ${srcdir}/.. topdir=`pwd` cd ${here} intree="no" if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then intree="yes" fi # Find Tcl private headers if test x"${intree}" = xno; then CY_AC_TCL_PRIVATE_HEADERS TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}" TCL_LIBRARY="${TCL_LIB_SPEC}" TCL_DEPS="" else # If building tcl in the same src tree, private headers # are not needed, but we need to be sure to use the right # headers library TCL_INCLUDE="-I${TCL_SRC_DIR}/generic" TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}" TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}" fi AC_SUBST(TCL_INCLUDE) AC_SUBST(TCL_LIBRARY) AC_SUBST(TCL_DEPS) SC_LOAD_TKCONFIG # Check for in-tree Tk intree="no" if test "${TK_SRC_DIR}" = "${topdir}/tk"; then intree="yes" fi # Find Tk private headers if test x"${intree}" = xno; then CY_AC_TK_PRIVATE_HEADERS TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}" TK_LIBRARY=${TK_LIB_SPEC} TK_DEPS="" else TK_INCLUDE="-I${TK_SRC_DIR}/generic" TK_LIBRARY="${TK_BUILD_LIB_SPEC}" TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}" fi AC_SUBST(TK_INCLUDE) AC_SUBST(TK_LIBRARY) AC_SUBST(TK_DEPS) AC_SUBST(TK_XINCLUDES) ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)" # Include some libraries that Tcl and Tk want. TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)' # Yes, the ordering seems wrong here. But it isn't. # TK_LIBS is the list of libraries that need to be linked # after Tcl/Tk. Note that this isn't put into LIBS. If it # were in LIBS then any link tests after this point would # try to include things like `$(LIBGUI)', which wouldn't work. GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}" CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)" CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)" CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)" CONFIG_ALL="${CONFIG_ALL} all-gdbtk" CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk" CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk" CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk" if test x$gdb_cv_os_cygwin = xyes; then WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32" WIN32LDAPP="-Wl,--subsystem,console" CONFIG_OBS="${CONFIG_OBS} gdbres.o" fi AC_CONFIG_SUBDIRS(gdbtk) fi fi AC_SUBST(X_CFLAGS) AC_SUBST(X_LDFLAGS) AC_SUBST(X_LIBS) AC_SUBST(GDBTKLIBS) AC_SUBST(GDBTK_CFLAGS) AC_SUBST(GDBTK_SRC_DIR) AC_PATH_X # Unlike the sim directory, whether a simulator is linked is controlled by # presence of a gdb_sim definition in the target configure.tgt entry. # This code just checks for a few cases where we'd like to ignore those # definitions, even when they're present in the '.mt' file. These cases # are when --disable-sim is specified, or if the simulator directory is # not part of the source tree. # AC_ARG_ENABLE(sim, AS_HELP_STRING([--enable-sim], [link gdb with simulator]), [echo "enable_sim = $enable_sim"; echo "enableval = ${enableval}"; case "${enableval}" in yes) ignore_sim=false ;; no) ignore_sim=true ;; *) ignore_sim=false ;; esac], [ignore_sim=false]) if test ! -d "${srcdir}/../sim"; then ignore_sim=true fi SIM= SIM_OBS= if test "${ignore_sim}" = "false"; then if test x"${gdb_sim}" != x ; then SIM="${gdb_sim}" SIM_OBS="remote-sim.o" AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.]) fi fi AC_SUBST(SIM) AC_SUBST(SIM_OBS) AC_SUBST(ENABLE_CFLAGS) AC_SUBST(PROFILE_CFLAGS) AC_SUBST(CONFIG_OBS) AC_SUBST(CONFIG_DEPS) AC_SUBST(CONFIG_SRCS) AC_SUBST(CONFIG_ALL) AC_SUBST(CONFIG_CLEAN) AC_SUBST(CONFIG_INSTALL) AC_SUBST(CONFIG_UNINSTALL) # List of host floatformats. AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat]) AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat]) AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat]) # target_subdir is used by the testsuite to find the target libraries. target_subdir= if test "${host}" != "${target}"; then target_subdir="${target_alias}/" fi AC_SUBST(target_subdir) frags= if test "${gdb_native}" = "yes"; then host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh if test ! -f ${host_makefile_frag}; then AC_MSG_ERROR("*** Gdb does not support native target ${host}") fi frags="$frags $host_makefile_frag" else host_makefile_frag=/dev/null fi AC_SUBST_FILE(host_makefile_frag) AC_SUBST(frags) changequote(,)dnl if test "${gdb_native}" = "yes"; then # We pick this up from the host configuration file (.mh) because we # do not have a native configuration Makefile fragment. nativefile=`sed -n ' s/NAT_FILE[ ]*=[ ]*\([^ ]*\)/\1/p ' ${host_makefile_frag}` fi changequote([,]) if test x"${gdb_osabi}" != x ; then AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi, [Define to the default OS ABI for this configuration.]) fi # Enable multi-ice-gdb-server. AC_ARG_ENABLE(multi-ice, AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]), [case $enableval in yes | no) ;; *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;; esac]) if test "x$enable_multi_ice" = xyes; then AC_CONFIG_SUBDIRS(multi-ice) fi AC_ARG_ENABLE(gdbserver, AS_HELP_STRING([--enable-gdbserver], [automatically build gdbserver (yes/no/auto, default is auto)]), [case "${enableval}" in yes| no|auto) ;; *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;; esac],[enable_gdbserver=auto]) # We only build gdbserver automatically in a native configuration, and # only if the user did not explicitly disable its build. if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then AC_MSG_CHECKING(whether gdbserver is supported on this host) if test "x$build_gdbserver" = xyes; then AC_MSG_RESULT(yes) AC_CONFIG_SUBDIRS(gdbserver) gdbserver_build_enabled=yes else AC_MSG_RESULT(no) fi fi # If the user explicitly request the gdbserver to be built, verify that # we were in fact able to enable it. if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration) fi # Check for babeltrace and babeltrace-ctf AC_ARG_WITH(babeltrace, AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]), [], [with_babeltrace=auto]) AC_MSG_CHECKING([whether to use babeltrace]) AC_MSG_RESULT([$with_babeltrace]) if test "x$with_babeltrace" = "xno"; then AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.]) else # Append -Werror to CFLAGS so that configure can catch the warning # "assignment from incompatible pointer type", which is related to # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works # in GDB, while babeltrace 1.0.3 is broken. # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be # safe to save and restore CFLAGS here. saved_CFLAGS=$CFLAGS CFLAGS="$CFLAGS -Werror" AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf], [#include #include #include ], [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL)); struct bt_ctf_event *event = NULL; const struct bt_definition *scope; scope = bt_ctf_get_top_level_scope (event, BT_STREAM_EVENT_HEADER); bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id")); ]) CFLAGS=$saved_CFLAGS if test "$HAVE_LIBBABELTRACE" != yes; then if test "$with_babeltrace" = yes; then AC_MSG_ERROR([babeltrace is missing or unusable]) else AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.]) fi fi fi # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link # to an empty version. files= links= rm -f nm.h if test "${nativefile}" != ""; then case "${nativefile}" in nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;; * ) GDB_NM_FILE="${nativefile}" esac files="${files} ${GDB_NM_FILE}" links="${links} nm.h" AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile]) fi AC_SUBST(GDB_NM_FILE) AC_LINK_FILES($files, $links) dnl Check for exe extension set on certain hosts (e.g. Win32) AC_EXEEXT dnl Detect the character set used by this host. dnl At the moment, we just assume it's UTF-8. AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8", [Define to be a string naming the default host character set.]) # Undo the $ec_script escaping suitable for Makefile. transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'` GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"` if test "x$GDB_TRANSFORM_NAME" = x; then GDB_TRANSFORM_NAME=gdb fi AC_SUBST(GDB_TRANSFORM_NAME) GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"` if test "x$GCORE_TRANSFORM_NAME" = x; then GCORE_TRANSFORM_NAME=gcore fi AC_SUBST(GCORE_TRANSFORM_NAME) AC_CONFIG_FILES([gcore], [chmod +x gcore]) AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile, [ case x$CONFIG_HEADERS in xconfig.h:config.in) echo > stamp-h ;; esac ]) exit 0