dnl Autoconf configure script for GDB, the GNU debugger.
-dnl Copyright (C) 1995-2021 Free Software Foundation, Inc.
+dnl Copyright (C) 1995-2022 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
*) 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 ${enableval} for 64-bit-bfd option) ;;
-esac],[want64=false])dnl
+BFD_64_BIT
# Provide defaults for some variables set by the per-host and per-target
# configuration.
done
# Check whether this target needs 64-bit CORE_ADDR
- if test x${want64} = xfalse; then
+ if test x${enable_64_bit_bfd} = xno; then
. ${srcdir}/../bfd/config.bfd
fi
done
if test x${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${want64} = xtrue; then
+ if test x${enable_64_bit_bfd} = xyes; then
TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
else
TARGET_OBS='$(ALL_TARGET_OBS)'
[use installed readline library])])
if test "$with_system_readline" = yes; then
+ AC_CHECK_HEADERS(readline/readline.h, [readline_h=yes], [readline_h=no])
+ if test "$readline_h" = "no"; then
+ AC_MSG_ERROR([readline development packages are probably missing])
+ fi
AC_CACHE_CHECK(
[whether system readline is new enough],
[gdb_cv_readline_ok],
;;
esac
- SRCHIGH_CFLAGS=`${pkg_config_prog_path} --cflags source-highlight`
- SRCHIGH_LIBS=`${pkg_config_prog_path} --libs source-highlight`
- AC_DEFINE([HAVE_SOURCE_HIGHLIGHT], 1,
- [Define to 1 if the source-highlight library is available])
- AC_MSG_RESULT([yes])
+ srchigh_pkg_cflags=`${pkg_config_prog_path} --cflags source-highlight`
+ srchigh_pkg_libs=`${pkg_config_prog_path} --libs source-highlight`
+
+ # Now that we have found a source-highlight library, check if we can use
+ # it. In particular, we're trying to detect the situation that the
+ # library is using the new libstdc++ library abi ( see
+ # https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html )
+ # while the compiler being used to compile gdb is using the old abi.
+ # Such a situation will result in an undefined reference to
+ # srchilite::SourceHighlight::SourceHighlight(std::string const&).
+ # This situation can occur for instance when using a source highlight
+ # library compiled with g++ 7.5.0 while building gdb with g++ 4.8.5.
+ AC_LANG_PUSH(C++)
+ save_CFLAGS="$CFLAGS"
+ save_LDFLAGS="$LDFLAGS"
+ CFLAGS="$CFLAGS $srchigh_pkg_cflags"
+ LDFLAGS="$LDFLAGS $srchigh_pkg_libs"
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [#include <srchilite/sourcehighlight.h>],
+ [std::string outlang = "esc.outlang";
+ new srchilite::SourceHighlight (outlang);]
+ )],
+ [have_usable_source_highlight=yes],
+ [have_usable_source_highlight=no]
+ )
+ CFLAGS="$save_CFLAGS"
+ LDFLAGS="$save_LDFLAGS"
+ AC_LANG_POP(C++)
+
+ if test "${have_usable_source_highlight}" = "yes"; then
+ AC_DEFINE([HAVE_SOURCE_HIGHLIGHT], 1,
+ [Define to 1 if the source-highlight library is available])
+ AC_MSG_RESULT([yes])
+ SRCHIGH_CFLAGS="$srchigh_pkg_cflags"
+ SRCHIGH_LIBS="$srchigh_pkg_libs"
+ else
+ AC_MSG_RESULT([no])
+ if test "${enable_source_highlight}" = "yes"; then
+ AC_MSG_ERROR([source-highlight in your system could not be used])
+ fi
+ fi
else
AC_MSG_RESULT([no])
if test "${enable_source_highlight}" = "yes"; then
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 "$gdb_cv_printf_has_long_long" = yes; then
- AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
- [Define to 1 if the "%ll" format works to print long longs.])
-fi
-
# Check if the compiler and runtime support printing decfloats.
AC_CACHE_CHECK([for decfloat support in printf],
[automatically load system-wide gdbinit files from this directory],
[])
+AM_GDB_COMPILER_TYPE
AM_GDB_WARNINGS
AM_GDB_UBSAN
[Define to the default OS ABI for this configuration.])
fi
+# Setup possible use of libbacktrace.
+AC_ARG_ENABLE([libbacktrace],
+[AS_HELP_STRING([--enable-libbacktrace],
+ [use libbacktrace to write a backtrace after a fatal signal.])],
+[case "${enableval}" in
+ yes) enable_libbacktrace=yes ;;
+ no) enable_libbacktrace=no ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-libbacktrace option) ;;
+esac],
+enable_libbacktrace=yes)
+
+if test "${enable_libbacktrace}" == "yes"; then
+ LIBBACKTRACE_INC="-I$srcdir/../libbacktrace/ -I../libbacktrace/"
+ LIBBACKTRACE_LIB=../libbacktrace/.libs/libbacktrace.a
+ AC_DEFINE(HAVE_LIBBACKTRACE, 1, [Define if libbacktrace is being used.])
+else
+ LIBBACKTRACE_INC=
+ LIBBACKTRACE_LIB=
+fi
+
+AC_SUBST(LIBBACKTRACE_INC)
+AC_SUBST(LIBBACKTRACE_LIB)
+
# Check for babeltrace and babeltrace-ctf
AC_ARG_WITH(babeltrace,
AS_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
projects / binutils-gdb.git / blobdiff