dnl Autoconf configure script for GDB, the GNU debugger.
-dnl Copyright (C) 1995-2012 Free Software Foundation, Inc.
+dnl Copyright (C) 1995-2013 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
dnl Process this file with autoconf to produce a configure script.
-dnl Provide more thorough testing by -lmcheck.
-dnl Set it to 'true' for development snapshots, 'false' for releases or
-dnl pre-releases.
-development=true
-
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
AC_SUBST(READLINE_CFLAGS)
AC_SUBST(READLINE_TEXI_INCFLAG)
-dnl -lmcheck provides cheap enough memory mangling for debugging purposes.
-if $development; then
- AC_CHECK_LIB(mcheck, main)
-fi
-
# Generate jit-reader.h
# This is typedeffed to GDB_CORE_ADDR in jit-reader.h
# unilaterally defined, and that in turn causes _SGIAPI to evaluate
# to false. So, we work around this issue by defining siginfo ourself
# though the command-line.
+ #
+ # On x64 Windows, Python's include headers, and pyconfig.h in
+ # particular, rely on MS_WIN64 macro to detect that it's a 64bit
+ # version of Windows. Unfortunately, MS_WIN64 is only defined if
+ # _MSC_VER, a Microsoft-specific macro, is defined. So, when
+ # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
+ # The issue was reported to the Python community, but still isn't
+ # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
+
case "$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 sys/socket.h sys/un.h])
+ sgtty.h unistd.h elf_hp.h locale.h \
+ dlfcn.h sys/socket.h sys/un.h linux/perf_event.h])
AC_CHECK_HEADERS(link.h, [], [],
[#if HAVE_SYS_TYPES_H
# include <sys/types.h>
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 sys/ptrace.h defines the PT_GETXMMREGS request.])
fi
-# Detect which type of /proc is in use, such as for Unixware or Solaris.
+# Detect which type of /proc is in use, such as for Solaris.
if test "${target}" = "${host}"; then
case "${host}" in
- *-*-unixware* | *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )
+ *-*-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).])
[[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
- AC_DEFINE(CC_HAS_LONG_LONG, 1,
- [Define to 1 if the compiler supports long long.])
+if test $gdb_cv_c_long_long != yes; then
+ # libdecnumber requires long long.
+ AC_MSG_ERROR([Compiler must support long long for GDB.])
fi
# Check if the compiler and runtime support printing long longs.
# Problem does not happen for the recommended libpythonX.Y.so linkage.
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PYTHON_CFLAGS"
+ old_LIBS="$LIBS"
+ LIBS="$LIBS $PYTHON_LIBS"
AC_RUN_IFELSE(
AC_LANG_PROGRAM(
[#include "]${have_libpython}[/Python.h"],
Py_Finalize ();
return err == 0 ? 0 : 1;]),
[dynamic_list=true], [], [true])
+ LIBS="$old_LIBS"
CFLAGS="$old_CFLAGS"
fi
LDFLAGS="$old_LDFLAGS"
[Define if using Solaris thread debugging.])
CONFIG_OBS="${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} $RDYNAMIC"
# Sun randomly tweaked the prototypes in <proc_service.h>
build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
-Wformat-nonliteral -Wno-pointer-sign \
-Wno-unused -Wunused-value -Wunused-function \
--Wno-switch -Wno-char-subscripts -Wmissing-prototypes"
+-Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
+-Wdeclaration-after-statement -Wempty-body"
# Enable -Wno-format by default when using gcc on mingw since many
# GCC versions complain about %I64.
AC_SUBST(WIN32LIBS)
# Add ELF support to GDB, but only if BFD includes ELF support.
-OLD_CFLAGS=$CFLAGS
-OLD_LDFLAGS=$LDFLAGS
-OLD_LIBS=$LIBS
-# 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
- LIBS="-ldl $LIBS"
-fi
-LIBS="-lbfd -liberty $intl $LIBS"
-AC_CACHE_CHECK([for ELF support in BFD], gdb_cv_var_elf,
-[AC_TRY_LINK(
-[#include <stdlib.h>
-#include "bfd.h"
-#include "elf-bfd.h"
-],
-[bfd *abfd = NULL; bfd_get_elf_phdr_upper_bound (abfd); ],
-gdb_cv_var_elf=yes, gdb_cv_var_elf=no)])
+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) <PLUGINS>.
if test "$plugins" = "yes"; then
- OLD_LIBS="-ldl $OLD_LIBS"
+ LIBS="-ldl $LIBS"
fi
fi
-CFLAGS=$OLD_CFLAGS
-LDFLAGS=$OLD_LDFLAGS
-LIBS=$OLD_LIBS
+
+# 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)
projects / deliverable / binutils-gdb.git / blobdiff