enable_rpath
with_libexpat_prefix
with_python
+enable_libmcheck
with_included_regex
with_sysroot
with_system_gdbinit
--enable-gdbtk enable gdbtk graphical user interface (GUI)
--enable-profiling enable profiling of GDB
--disable-rpath do not hardcode runtime library paths
+ --enable-libmcheck Try building GDB with -lmcheck if available
--enable-werror treat compile warnings as errors
--enable-build-warnings enable build-time compiler warnings if gcc is used
--enable-gdb-build-warnings
-if $development; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lmcheck" >&5
-$as_echo_n "checking for main in -lmcheck... " >&6; }
-if test "${ac_cv_lib_mcheck_main+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lmcheck $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-
-int
-main ()
-{
-return main ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_mcheck_main=yes
-else
- ac_cv_lib_mcheck_main=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mcheck_main" >&5
-$as_echo "$ac_cv_lib_mcheck_main" >&6; }
-if test "x$ac_cv_lib_mcheck_main" = x""yes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBMCHECK 1
-_ACEOF
-
- LIBS="-lmcheck $LIBS"
-
-fi
-
-fi
-
# Generate jit-reader.h
# This is typedeffed to GDB_CORE_ADDR in jit-reader.h
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).
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether python supports threads" >&5
+$as_echo_n "checking whether python supports threads... " >&6; }
+ saved_CPPFLAGS="${CPPFLAGS}"
+ CPPFLAGS="${PYTHON_CPPFLAGS}"
+ # Note that the test is reversed so that python_has_threads=yes on
+ # unexpected failures.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <Python.h>
+#ifdef WITH_THREAD
+# error
+#endif
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+ python_has_threads=no
+else
+ python_has_threads=yes
+fi
+rm -f conftest.err conftest.$ac_ext
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${python_has_threads}" >&5
+$as_echo "${python_has_threads}" >&6; }
+ CPPFLAGS="${saved_CPPFLAGS}"
else
# Even if Python support is not compiled in, we need to have these files
# included.
+# 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.
+# Check whether --enable-libmcheck was given.
+if test "${enable_libmcheck+set}" = set; then :
+ enableval=$enable_libmcheck; case "${enableval}" in
+ yes | y) ENABLE_LIBMCHECK="yes" ;;
+ no | n) ENABLE_LIBMCHECK="no" ;;
+ *) as_fn_error "bad value ${enableval} for --enable-libmcheck" "$LINENO" 5 ;;
+ esac
+fi
+
+
+# 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
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-libmcheck may lead to spurious crashes if threads are used in python" >&5
+$as_echo "$as_me: WARNING: --enable-libmcheck may lead to spurious crashes if threads are used in python" >&2;}
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lmcheck" >&5
+$as_echo_n "checking for main in -lmcheck... " >&6; }
+if test "${ac_cv_lib_mcheck_main+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmcheck $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+
+int
+main ()
+{
+return main ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_mcheck_main=yes
+else
+ ac_cv_lib_mcheck_main=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mcheck_main" >&5
+$as_echo "$ac_cv_lib_mcheck_main" >&6; }
+if test "x$ac_cv_lib_mcheck_main" = x""yes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBMCHECK 1
+_ACEOF
+
+ LIBS="-lmcheck $LIBS"
+
+fi
+
+fi
+
# ------------------------- #
# Checks for header files. #
# ------------------------- #
# FIXME: kettenis/20030102: In most cases we include these (ctype.h, time.h)
# unconditionally, so what's the point in checking these?
for ac_header in 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 \
projects / deliverable / binutils-gdb.git / blobdiff