dnl Autoconf configure script for GDB, the GNU debugger.
-dnl Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-dnl 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
-dnl Free Software Foundation, Inc.
+dnl Copyright (C) 1995-2012 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
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
-gl_EARLY
ACX_LARGEFILE
AM_PROG_CC_STDC
AC_CONFIG_AUX_DIR(..)
AC_CANONICAL_SYSTEM
+AC_ARG_PROGRAM
# Dependency checking.
ZW_CREATE_DEPDIR
AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
AC_PROG_MAKE_SET
+# Configure gnulib. We need to build gnulib under some other
+# directory not "gnulib", to avoid the problem of both GDB and
+# GDBserver wanting to build it in the same directory, when building
+# in the source dir.
+ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"])
+
dnl List of object files and targets accumulated by configure.
CONFIG_OBS=
CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
fi
-gl_INIT
+GNULIB=build-gnulib/import
# For Makefile dependencies.
GNULIB_STDINT_H=
if test x"$STDINT_H" != x; then
- GNULIB_STDINT_H=gnulib/$STDINT_H
+ GNULIB_STDINT_H=$GNULIB/$STDINT_H
fi
AC_SUBST(GNULIB_STDINT_H)
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
AC_SUBST(PACKAGE)
-# Do we have a single-tree copy of texinfo? Even if we do, we can't
-# rely on it - libiberty is built before texinfo.
-AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
-if test "x$MAKEINFO" = "x"; then
- AC_ERROR([makeinfo is required for compilation])
-else
- case "$MAKEINFO" in
- */missing\ makeinfo*)
- AC_ERROR([makeinfo is required for compilation])
- ;;
- esac
-fi
-AC_SUBST(MAKEINFO)
-
-# --split-size=5000000 may be already in $MAKEINFO from parent configure.
-# Re-running configure in gdb/ would lose it so ensure it stays present.
-MAKEINFOFLAGS=${MAKEINFOFLAGS---split-size=5000000}
-AC_SUBST(MAKEINFOFLAGS)
+# 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 $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
fi
AC_SUBST(MAKEINFO_EXTRA_FLAGS)
-# GDB does not use automake, but gnulib does. This line lets us
-# generate its Makefile.in.
-AM_INIT_AUTOMAKE(gdb, UNUSED-VERSION, [no-define])
-
GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
[look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
[${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,
[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([$with_auto_load_safe_path])
+
AC_CONFIG_SUBDIRS(testsuite)
# Check whether to support alternative target configurations
enable_gdbtk=no ;;
esac
-# Libunwind support.
-AC_ARG_WITH(libunwind,
-AS_HELP_STRING([--with-libunwind], [use libunwind frame unwinding support]),
-[case "${withval}" in
- yes) enable_libunwind=yes ;;
- no) enable_libunwind=no ;;
- *) AC_MSG_ERROR(bad value ${withval} for GDB with-libunwind option) ;;
-esac],[
- AC_CHECK_HEADERS(libunwind.h libunwind-ia64.h)
- if test x"$ac_cv_header_libunwind_h" = xyes -a x"$ac_cv_header_libunwind_ia64_h" = xyes; then
- enable_libunwind=yes;
+# Libunwind support for ia64.
+
+AC_ARG_WITH(libunwind-ia64,
+AS_HELP_STRING([--with-libunwind-ia64],
+ [use libunwind frame unwinding for ia64 targets]),,
+ [with_libunwind_ia64=auto])
+
+# Backward compatibility option.
+if test "${with_libunwind+set}" = set; then
+ if test x"$with_libunwind_ia64" != xauto; then
+ AC_MSG_ERROR(
+ [option --with-libunwind is deprecated, use --with-libunwind-ia64])
fi
-])
-
-if test x"$enable_libunwind" = xyes; then
- AC_CHECK_HEADERS(libunwind.h libunwind-ia64.h)
- AC_DEFINE(HAVE_LIBUNWIND, 1, [Define if libunwind library is being used.])
- CONFIG_OBS="$CONFIG_OBS libunwind-frame.o"
- CONFIG_DEPS="$CONFIG_DEPS libunwind-frame.o"
- CONFIG_SRCS="$CONFIG_SRCS libunwind-frame.c"
+ AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
+ with_libunwind_ia64="$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
CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
- CONFIG_ALL="${CONFIG_ALL} all-tui"
- CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui"
- CONFIG_INSTALL="${CONFIG_INSTALL} install-tui"
- CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui"
else
if test x"$enable_tui" = xyes; then
AC_MSG_ERROR([no enhanced curses library found; disable TUI])
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"
# 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="${PYTHON_CPPFLAGS}"
+ # Note that the test is reversed so that python_has_threads=yes on
+ # unexpected failures.
+ AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
+#include <Python.h>
+#ifdef WITH_THREAD
+# error
+#endif
+ ]]), [python_has_threads=no], [python_has_threads=yes])
+ AC_MSG_RESULT(${python_has_threads})
+ CPPFLAGS="${saved_CPPFLAGS}"
else
# Even if Python support is not compiled in, we need to have these files
# included.
AC_SUBST(PYTHON_CPPFLAGS)
AC_SUBST(PYTHON_LIBS)
+# Provide a --enable-libmcheck/--disable-libmcheck set of options
+# allowing a user to enable this option even when building releases,
+# or to disable it when building a snapshot.
+AC_ARG_ENABLE(libmcheck,
+ AS_HELP_STRING([--enable-libmcheck],
+ [Try building GDB with -lmcheck if available]),
+ [case "${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_STAT
AC_HEADER_STDC
# elf_hp.h is for HP/UX 64-bit shared library support.
-# FIXME: kettenis/20030102: In most cases we include these (ctype.h, time.h)
-# unconditionally, so what's the point in checking these?
AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
- thread_db.h gnu/libc-version.h signal.h stddef.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 ctype.h time.h locale.h \
- dlfcn.h])
+ sgtty.h unistd.h elf_hp.h locale.h \
+ dlfcn.h sys/socket.h sys/un.h])
AC_CHECK_HEADERS(link.h, [], [],
[#if HAVE_SYS_TYPES_H
# include <sys/types.h>
AC_FUNC_ALLOCA
AC_FUNC_MMAP
AC_FUNC_VFORK
-AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid \
- getgid pipe poll pread64 resize_term sbrk setpgid setpgrp setsid \
+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])
+ setrlimit getrlimit posix_madvise waitpid lstat])
AM_LANGINFO_CODESET
# Check the return and argument types of ptrace. No canned test for
AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
[#include <machine/reg.h>])
+# See if <sys/user.h> 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 <sys/user.h>])
+
# See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
AC_MSG_CHECKING(for PTRACE_GETREGS)
AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
[Define if using Solaris thread debugging.])
CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
+ # On SPARC CPUs, we also need to build sparc-sol-thread.
+ case ${host_cpu} in
+ sparc*)
+ CONFIG_OBS="${CONFIG_OBS} sparc-sol-thread.o"
+ CONFIG_SRCS="${CONFIG_SRCS} sparc-sol-thread.c"
+ ;;
+ esac
AC_CHECK_LIB(dl, dlopen)
CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
# Sun randomly tweaked the prototypes in <proc_service.h>
if test $gdb_cv_have_aix_thread_debug = yes; then
CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
- CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -lpthdebug"
+ LIBS="$LIBS -lpthdebug"
# Older versions of AIX do not provide the declaration for
# the getthrds function (it appears that it was introduced
dnl Handle optional features that can be enabled.
-target_sysroot_reloc=0
+# Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
+# except that the argument to --with-sysroot is optional.
+# --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
+if test "x$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]),
-[
- case ${with_sysroot} in
- yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
- *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
- esac
-
- TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
-
- if test "x$prefix" = xNONE; then
- test_prefix=/usr/local
- else
- test_prefix=$prefix
- fi
- if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
- test_exec_prefix=$test_prefix
- else
- test_exec_prefix=$exec_prefix
- fi
- case ${TARGET_SYSTEM_ROOT} in
- "${test_prefix}"|"${test_prefix}/"*|\
- "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
- '${prefix}'|'${prefix}/'*|\
- '${exec_prefix}'|'${exec_prefix}/'*)
- target_sysroot_reloc=1
- ;;
- esac
-], [
- TARGET_SYSTEM_ROOT=
- TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
-])
-TARGET_SYSTEM_ROOT_DEFINE="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE=$target_sysroot_reloc"
+ AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
+ [search for usr/lib et al within DIR]),
+ [TARGET_SYSTEM_ROOT=$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)
-AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
+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_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}" && $development; then
ERROR_ON_WARNING=yes
fi
build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
-Wformat-nonliteral -Wno-pointer-sign \
-Wno-unused -Wunused-value -Wunused-function \
--Wno-switch -Wno-char-subscripts"
+-Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
+-Wdeclaration-after-statement -Wempty-body"
# Enable -Wno-format by default when using gcc on mingw since many
# GCC versions complain about %I64.
OLD_CFLAGS=$CFLAGS
OLD_LDFLAGS=$LDFLAGS
OLD_LIBS=$LIBS
-CFLAGS="$CFLAGS -I${srcdir}/../include -I../bfd -I${srcdir}/../bfd"
-LDFLAGS="$LDFLAGS -L../bfd -L../libiberty"
+# Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
+# points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We
+# always want our bfd.
+CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
+LDFLAGS="-L../bfd -L../libiberty $LDFLAGS"
intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
# -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
if test "$plugins" = "yes"; then
[bfd *abfd = NULL; bfd_get_elf_phdr_upper_bound (abfd); ],
gdb_cv_var_elf=yes, gdb_cv_var_elf=no)])
if test $gdb_cv_var_elf = yes; then
- CONFIG_OBS="$CONFIG_OBS elfread.o"
+ CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
AC_DEFINE(HAVE_ELF, 1,
[Define if ELF support should be included.])
# -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
[Define to be a string naming the default host character set.])
-AC_OUTPUT(Makefile .gdbinit:gdbinit.in doc/Makefile gnulib/Makefile data-directory/Makefile,
+AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
[
case x$CONFIG_HEADERS in
xconfig.h:config.in)