00020c1638
./: * configure.ac: Add --enable-build-with-cxx. When set, add c++ to boot_languages. Only bootstrap target libraries listed in target_libs for some boot language. Add --with-stage1-ldflags, --with-stage1-libs, --with-boot-ldflags, --with-boot-libs. Remove with_host_libstdcxx from ppllibs. Only add -fkeep-inline-functions if not building with C++. * Makefile.def: For target_module libstdc++-v3, set bootstrap=true. * Makefile.tpl (STAGE1_LDFLAGS, STAGE1_LIBS): New variables. (POSTSTAGE1_LDFLAGS, POSTSTAGE1_LIBS): New variables. (HOST_EXPORTS): Add STAGE1_LDFLAGS to LDFLAGS. Export HOST_LIBS. (POSTSTAGE1_HOST_EXPORTS): Set CXX and CXX_FOR_BUILD. Add POSTSTAGE1_LDFLAGS to LDFLAGS. Export HOST_LIBS. (POSTSTAGE1_FLAGS_TO_PASS): Likewise. * configure, Makefile.in: Rebuild. gcc/: * configure.ac: Invoke AC_PROG_CXX. Separate C specific warnings from loose_warn into c_loose_warn and from strict_warn into c_strict_warn. Set and substitute warn_cxxflags. Check for --enable-build-with-cxx. Set and substitute ENABLE_BUILD_WITH_CXX. Set and substitute HOST_LIBS. * Makefile.in (CXXFLAGS): New variable. (C_LOOSE_WARN, C_STRICT_WARN): New variables. (GCC_WARN_CFLAGS): Add $(C_LOOSE_WARN). Add $(C_STRICT_WARN) if the default is the same as $(STRICT_WARN). (GCC_WARN_CXXFLAGS, WARN_CXXFLAGS): New variables. (CXX): New variable. (COMPILER): New value if ENABLE_BUILD_WITH_CXX. (COMPILER_FLAGS, LINKER, LINKER_FLAGS): Likewise. (ALL_COMPILERFLAGS, ALL_LINKERFLAGS): Likewise. (HOST_LIBS): New variable. (GCC_CFLAGS): Add $(C_LOOSE_WARN). (ALL_CXXFLAGS): New variable. (LIBS, BACKENDLIBS): Add $(HOST_LIBS). * doc/install.texi (Configuration): Document --enable-build-with-cxx, --with-stage1-ldflags, --with-stage1-libs, --with-boot-ldflags, --with-boot-libs. * configure: Rebuild. From-SVN: r148889
4203 lines
124 KiB
Plaintext
4203 lines
124 KiB
Plaintext
# configure.ac for GCC
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# Process this file with autoconf to generate a configuration script.
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# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
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# 2007, 2008, 2009 Free Software Foundation, Inc.
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#This file is part of GCC.
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#GCC is free software; you can redistribute it and/or modify it under
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#the terms of the GNU General Public License as published by the Free
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#Software Foundation; either version 3, or (at your option) any later
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#version.
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#GCC is distributed in the hope that it will be useful, but WITHOUT
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#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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#FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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#for more details.
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#You should have received a copy of the GNU General Public License
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#along with GCC; see the file COPYING3. If not see
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#<http://www.gnu.org/licenses/>.
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# --------------------------------
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# Initialization and sanity checks
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# --------------------------------
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AC_PREREQ(2.59)
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AC_INIT
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AC_CONFIG_SRCDIR(tree.c)
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AC_CONFIG_HEADER(auto-host.h:config.in)
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gcc_version=`cat $srcdir/BASE-VER`
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# Determine the host, build, and target systems
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AC_CANONICAL_BUILD
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AC_CANONICAL_HOST
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AC_CANONICAL_TARGET
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# Determine the noncanonical target name, for directory use.
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ACX_NONCANONICAL_TARGET
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# Determine the target- and build-specific subdirectories
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GCC_TOPLEV_SUBDIRS
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# Set program_transform_name
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AC_ARG_PROGRAM
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# Check for bogus environment variables.
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# Test if LIBRARY_PATH contains the notation for the current directory
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# since this would lead to problems installing/building glibc.
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# LIBRARY_PATH contains the current directory if one of the following
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# is true:
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# - one of the terminals (":" and ";") is the first or last sign
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# - two terminals occur directly after each other
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# - the path contains an element with a dot in it
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AC_MSG_CHECKING(LIBRARY_PATH variable)
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changequote(,)dnl
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case ${LIBRARY_PATH} in
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[:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
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library_path_setting="contains current directory"
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;;
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*)
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library_path_setting="ok"
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;;
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esac
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changequote([,])dnl
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AC_MSG_RESULT($library_path_setting)
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if test "$library_path_setting" != "ok"; then
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AC_MSG_ERROR([
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*** LIBRARY_PATH shouldn't contain the current directory when
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*** building gcc. Please change the environment variable
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*** and run configure again.])
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fi
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# Test if GCC_EXEC_PREFIX contains the notation for the current directory
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# since this would lead to problems installing/building glibc.
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# GCC_EXEC_PREFIX contains the current directory if one of the following
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# is true:
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# - one of the terminals (":" and ";") is the first or last sign
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# - two terminals occur directly after each other
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# - the path contains an element with a dot in it
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AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
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changequote(,)dnl
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case ${GCC_EXEC_PREFIX} in
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[:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
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gcc_exec_prefix_setting="contains current directory"
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;;
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*)
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gcc_exec_prefix_setting="ok"
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;;
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esac
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changequote([,])dnl
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AC_MSG_RESULT($gcc_exec_prefix_setting)
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if test "$gcc_exec_prefix_setting" != "ok"; then
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AC_MSG_ERROR([
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*** GCC_EXEC_PREFIX shouldn't contain the current directory when
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*** building gcc. Please change the environment variable
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*** and run configure again.])
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fi
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# -----------
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# Directories
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# -----------
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# Specify the local prefix
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local_prefix=
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AC_ARG_WITH(local-prefix,
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[ --with-local-prefix=DIR specifies directory to put local include],
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[case "${withval}" in
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yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
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no) ;;
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*) local_prefix=$with_local_prefix ;;
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esac])
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# Default local prefix if it is empty
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if test x$local_prefix = x; then
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local_prefix=/usr/local
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fi
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# Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
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# passed in by the toplevel make and thus we'd get different behavior
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# depending on where we built the sources.
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gcc_gxx_include_dir=
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# Specify the g++ header file directory
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AC_ARG_WITH(gxx-include-dir,
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[ --with-gxx-include-dir=DIR
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specifies directory to put g++ header files],
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[case "${withval}" in
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yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
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no) ;;
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*) gcc_gxx_include_dir=$with_gxx_include_dir ;;
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esac])
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# This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
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if test x${gcc_gxx_include_dir} = x; then
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if test x${enable_version_specific_runtime_libs} = xyes; then
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gcc_gxx_include_dir='${libsubdir}/include/c++'
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else
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libstdcxx_incdir='include/c++/$(version)'
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if test x$host != x$target; then
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libstdcxx_incdir="$target_alias/$libstdcxx_incdir"
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fi
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gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
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fi
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fi
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AC_ARG_WITH(cpp_install_dir,
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[ --with-cpp-install-dir=DIR
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install the user visible C preprocessor in DIR
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(relative to PREFIX) as well as PREFIX/bin],
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[if test x$withval = xyes; then
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AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
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elif test x$withval != xno; then
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cpp_install_dir=$withval
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fi])
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# We would like to our source tree to be readonly. However when releases or
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# pre-releases are generated, the flex/bison generated files as well as the
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# various formats of manuals need to be included along with the rest of the
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# sources. Therefore we have --enable-generated-files-in-srcdir to do
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# just that.
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AC_MSG_CHECKING([whether to place generated files in the source directory])
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dnl generated-files-in-srcdir is disabled by default
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AC_ARG_ENABLE(generated-files-in-srcdir,
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[ --enable-generated-files-in-srcdir
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put copies of generated files in source dir
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intended for creating source tarballs for users
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without texinfo bison or flex.],
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generated_files_in_srcdir=$enableval,
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generated_files_in_srcdir=no)
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AC_MSG_RESULT($generated_files_in_srcdir)
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if test "$generated_files_in_srcdir" = "yes"; then
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GENINSRC=''
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else
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GENINSRC='#'
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fi
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AC_SUBST(GENINSRC)
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# -------------------
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# Find default linker
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# -------------------
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# With GNU ld
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AC_ARG_WITH(gnu-ld,
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[ --with-gnu-ld arrange to work with GNU ld.],
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gnu_ld_flag="$with_gnu_ld",
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gnu_ld_flag=no)
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# With pre-defined ld
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AC_ARG_WITH(ld,
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[ --with-ld arrange to use the specified ld (full pathname)],
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DEFAULT_LINKER="$with_ld")
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if test x"${DEFAULT_LINKER+set}" = x"set"; then
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if test ! -x "$DEFAULT_LINKER"; then
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AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
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elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
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gnu_ld_flag=yes
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fi
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AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
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[Define to enable the use of a default linker.])
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fi
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gnu_ld=`if test x"$gnu_ld_flag" = x"yes"; then echo 1; else echo 0; fi`
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AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld, [Define if using GNU ld.])
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AC_MSG_CHECKING([whether a default linker was specified])
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if test x"${DEFAULT_LINKER+set}" = x"set"; then
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if test x"$gnu_ld_flag" = x"no"; then
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AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
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else
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AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
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fi
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else
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AC_MSG_RESULT(no)
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fi
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# With demangler in GNU ld
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AC_ARG_WITH(demangler-in-ld,
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[ --with-demangler-in-ld try to use demangler in GNU ld.],
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demangler_in_ld="$with_demangler_in_ld",
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demangler_in_ld=no)
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# ----------------------
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# Find default assembler
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# ----------------------
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# With GNU as
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AC_ARG_WITH(gnu-as,
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[ --with-gnu-as arrange to work with GNU as],
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gas_flag="$with_gnu_as",
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gas_flag=no)
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AC_ARG_WITH(as,
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[ --with-as arrange to use the specified as (full pathname)],
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DEFAULT_ASSEMBLER="$with_as")
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if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
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if test ! -x "$DEFAULT_ASSEMBLER"; then
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AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
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elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
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gas_flag=yes
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fi
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AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
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[Define to enable the use of a default assembler.])
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fi
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gnu_as=`if test x"$gas_flag" = x"yes"; then echo 1; else echo 0; fi`
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AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as, [Define if using GNU as.])
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AC_MSG_CHECKING([whether a default assembler was specified])
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if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
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if test x"$gas_flag" = x"no"; then
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AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
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else
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AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
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fi
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else
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AC_MSG_RESULT(no)
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fi
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# ---------------
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# Find C compiler
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# ---------------
|
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# If a non-executable a.out is present (e.g. created by GNU as above even if
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# invoked with -v only), the IRIX 6 native ld just overwrites the existing
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# file, even when creating an executable, so an execution test fails.
|
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# Remove possible default executable files to avoid this.
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#
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# FIXME: This really belongs into AC_PROG_CC and can be removed once
|
|
# Autoconf includes it.
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rm -f a.out a.exe b.out
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# Find the native compiler
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AC_PROG_CC
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AM_PROG_CC_C_O
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AC_PROG_CXX
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ACX_PROG_GNAT([-I"$srcdir"/ada])
|
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# autoconf is lame and doesn't give us any substitution variable for this.
|
|
if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
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NO_MINUS_C_MINUS_O=yes
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else
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OUTPUT_OPTION='-o $@'
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fi
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AC_SUBST(NO_MINUS_C_MINUS_O)
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AC_SUBST(OUTPUT_OPTION)
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# Remove the -O2: for historical reasons, unless bootstrapping we prefer
|
|
# optimizations to be activated explicitly by the toplevel.
|
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case "$CC" in
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*/prev-gcc/xgcc*) ;;
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*) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;;
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esac
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AC_SUBST(CFLAGS)
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# -------------------------
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# Check C compiler features
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# -------------------------
|
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AC_USE_SYSTEM_EXTENSIONS
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AC_PROG_CPP
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AC_C_INLINE
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# sizeof(char) is 1 by definition.
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AC_CHECK_SIZEOF(void *)
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AC_CHECK_SIZEOF(short)
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AC_CHECK_SIZEOF(int)
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AC_CHECK_SIZEOF(long)
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AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
|
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AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
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# ---------------------
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# Warnings and checking
|
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# ---------------------
|
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# Check $CC warning features (if it's GCC).
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# We want to use -pedantic, but we don't want warnings about
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# * 'long long'
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# * variadic macros
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# * overlong strings
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# So, we only use -pedantic if we can disable those warnings.
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ACX_PROG_CC_WARNING_OPTS(
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m4_quote(m4_do([-W -Wall -Wwrite-strings -Wcast-qual])), [loose_warn])
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|
ACX_PROG_CC_WARNING_OPTS(
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m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
|
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[c_loose_warn])
|
|
ACX_PROG_CC_WARNING_OPTS(
|
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m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn])
|
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ACX_PROG_CC_WARNING_OPTS(
|
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m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn])
|
|
ACX_PROG_CC_WARNING_ALMOST_PEDANTIC(
|
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m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ],
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|
[-Wno-overlength-strings])), [strict_warn])
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ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn])
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|
|
# The above macros do nothing if the compiler is not GCC. However, the
|
|
# Makefile has more goo to add other flags, so these variables are used
|
|
# to enable warnings only for GCC.
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|
warn_cflags=
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warn_cxxflags=
|
|
if test "x$GCC" = "xyes"; then
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warn_cflags='$(GCC_WARN_CFLAGS)'
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|
warn_cxxflags='$(GCC_WARN_CXXFLAGS)'
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fi
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AC_SUBST(warn_cflags)
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AC_SUBST(warn_cxxflags)
|
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|
|
# Enable expensive internal checks
|
|
is_release=
|
|
if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
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is_release=yes
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fi
|
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|
|
AC_ARG_ENABLE(checking,
|
|
[ --enable-checking[=LIST]
|
|
enable expensive run-time checks. With LIST,
|
|
enable only specific categories of checks.
|
|
Categories are: yes,no,all,none,release.
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Flags are: assert,df,fold,gc,gcac,gimple,misc,
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rtlflag,rtl,runtime,tree,valgrind,types.],
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[ac_checking_flags="${enableval}"],[
|
|
# Determine the default checks.
|
|
if test x$is_release = x ; then
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|
ac_checking_flags=yes
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|
else
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|
ac_checking_flags=release
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fi])
|
|
IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
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|
for check in release $ac_checking_flags
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|
do
|
|
case $check in
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|
# these set all the flags to specific states
|
|
yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ;
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|
ac_fold_checking= ; ac_gc_checking=1 ;
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|
ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ;
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ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
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|
ac_tree_checking=1 ; ac_valgrind_checking= ;
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|
ac_types_checking=1 ;;
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|
no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ;
|
|
ac_fold_checking= ; ac_gc_checking= ;
|
|
ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
|
|
ac_rtlflag_checking= ; ac_runtime_checking= ;
|
|
ac_tree_checking= ; ac_valgrind_checking= ;
|
|
ac_types_checking= ;;
|
|
all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ;
|
|
ac_fold_checking=1 ; ac_gc_checking=1 ;
|
|
ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ;
|
|
ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
|
|
ac_tree_checking=1 ; ac_valgrind_checking= ;
|
|
ac_types_checking=1 ;;
|
|
release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ;
|
|
ac_fold_checking= ; ac_gc_checking= ;
|
|
ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
|
|
ac_rtlflag_checking= ; ac_runtime_checking=1 ;
|
|
ac_tree_checking= ; ac_valgrind_checking= ;
|
|
ac_types_checking= ;;
|
|
# these enable particular checks
|
|
assert) ac_assert_checking=1 ;;
|
|
df) ac_df_checking=1 ;;
|
|
fold) ac_fold_checking=1 ;;
|
|
gc) ac_gc_checking=1 ;;
|
|
gcac) ac_gc_always_collect=1 ;;
|
|
gimple) ac_gimple_checking=1 ;;
|
|
misc) ac_checking=1 ;;
|
|
rtl) ac_rtl_checking=1 ;;
|
|
rtlflag) ac_rtlflag_checking=1 ;;
|
|
runtime) ac_runtime_checking=1 ;;
|
|
tree) ac_tree_checking=1 ;;
|
|
types) ac_types_checking=1 ;;
|
|
valgrind) ac_valgrind_checking=1 ;;
|
|
*) AC_MSG_ERROR(unknown check category $check) ;;
|
|
esac
|
|
done
|
|
IFS="$ac_save_IFS"
|
|
|
|
nocommon_flag=""
|
|
if test x$ac_checking != x ; then
|
|
AC_DEFINE(ENABLE_CHECKING, 1,
|
|
[Define if you want more run-time sanity checks. This one gets a grab
|
|
bag of miscellaneous but relatively cheap checks.])
|
|
nocommon_flag=-fno-common
|
|
fi
|
|
AC_SUBST(nocommon_flag)
|
|
if test x$ac_df_checking != x ; then
|
|
AC_DEFINE(ENABLE_DF_CHECKING, 1,
|
|
[Define if you want more run-time sanity checks for dataflow.])
|
|
fi
|
|
if test x$ac_assert_checking != x ; then
|
|
AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
|
|
[Define if you want assertions enabled. This is a cheap check.])
|
|
fi
|
|
if test x$ac_gimple_checking != x ; then
|
|
AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1,
|
|
[Define if you want operations on GIMPLE (the basic data structure of
|
|
the high-level optimizers) to be checked for dynamic type safety at
|
|
runtime. This is moderately expensive.])
|
|
fi
|
|
GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
|
|
if test x$ac_runtime_checking != x ; then
|
|
AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
|
|
[Define if you want runtime assertions enabled. This is a cheap check.])
|
|
fi
|
|
if test x$ac_tree_checking != x ; then
|
|
AC_DEFINE(ENABLE_TREE_CHECKING, 1,
|
|
[Define if you want all operations on trees (the basic data
|
|
structure of the front ends) to be checked for dynamic type safety
|
|
at runtime. This is moderately expensive. The tree browser debugging
|
|
routines will also be enabled by this option.
|
|
])
|
|
TREEBROWSER=tree-browser.o
|
|
fi
|
|
if test x$ac_types_checking != x ; then
|
|
AC_DEFINE(ENABLE_TYPES_CHECKING, 1,
|
|
[Define if you want all gimple types to be verified after gimplifiation.
|
|
This is cheap.
|
|
])
|
|
fi
|
|
AC_SUBST(TREEBROWSER)
|
|
if test x$ac_rtl_checking != x ; then
|
|
AC_DEFINE(ENABLE_RTL_CHECKING, 1,
|
|
[Define if you want all operations on RTL (the basic data structure
|
|
of the optimizer and back end) to be checked for dynamic type safety
|
|
at runtime. This is quite expensive.])
|
|
fi
|
|
if test x$ac_rtlflag_checking != x ; then
|
|
AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
|
|
[Define if you want RTL flag accesses to be checked against the RTL
|
|
codes that are supported for each access macro. This is relatively
|
|
cheap.])
|
|
fi
|
|
if test x$ac_gc_checking != x ; then
|
|
AC_DEFINE(ENABLE_GC_CHECKING, 1,
|
|
[Define if you want the garbage collector to do object poisoning and
|
|
other memory allocation checks. This is quite expensive.])
|
|
fi
|
|
if test x$ac_gc_always_collect != x ; then
|
|
AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
|
|
[Define if you want the garbage collector to operate in maximally
|
|
paranoid mode, validating the entire heap and collecting garbage at
|
|
every opportunity. This is extremely expensive.])
|
|
fi
|
|
if test x$ac_fold_checking != x ; then
|
|
AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
|
|
[Define if you want fold checked that it never destructs its argument.
|
|
This is quite expensive.])
|
|
fi
|
|
valgrind_path_defines=
|
|
valgrind_command=
|
|
|
|
dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
|
|
dnl # an if statement. This was the source of very frustrating bugs
|
|
dnl # in converting to autoconf 2.5x!
|
|
AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
|
|
|
|
if test x$ac_valgrind_checking != x ; then
|
|
# It is certainly possible that there's valgrind but no valgrind.h.
|
|
# GCC relies on making annotations so we must have both.
|
|
AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
|
|
AC_PREPROC_IFELSE([AC_LANG_SOURCE(
|
|
[[#include <valgrind/memcheck.h>
|
|
#ifndef VALGRIND_DISCARD
|
|
#error VALGRIND_DISCARD not defined
|
|
#endif]])],
|
|
[gcc_cv_header_valgrind_memcheck_h=yes],
|
|
[gcc_cv_header_valgrind_memcheck_h=no])
|
|
AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
|
|
AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
|
|
AC_PREPROC_IFELSE([AC_LANG_SOURCE(
|
|
[[#include <memcheck.h>
|
|
#ifndef VALGRIND_DISCARD
|
|
#error VALGRIND_DISCARD not defined
|
|
#endif]])],
|
|
[gcc_cv_header_memcheck_h=yes],
|
|
[gcc_cv_header_memcheck_h=no])
|
|
AC_MSG_RESULT($gcc_cv_header_memcheck_h)
|
|
AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
|
|
[$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
|
|
if test "x$valgrind_path" = "x" \
|
|
|| (test $have_valgrind_h = no \
|
|
&& test $gcc_cv_header_memcheck_h = no \
|
|
&& test $gcc_cv_header_valgrind_memcheck_h = no); then
|
|
AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
|
|
fi
|
|
valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
|
|
valgrind_command="$valgrind_path -q"
|
|
AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
|
|
[Define if you want to run subprograms and generated programs
|
|
through valgrind (a memory checker). This is extremely expensive.])
|
|
if test $gcc_cv_header_valgrind_memcheck_h = yes; then
|
|
AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
|
|
[Define if valgrind's valgrind/memcheck.h header is installed.])
|
|
fi
|
|
if test $gcc_cv_header_memcheck_h = yes; then
|
|
AC_DEFINE(HAVE_MEMCHECK_H, 1,
|
|
[Define if valgrind's memcheck.h header is installed.])
|
|
fi
|
|
fi
|
|
AC_SUBST(valgrind_path_defines)
|
|
AC_SUBST(valgrind_command)
|
|
|
|
# Enable code coverage collection
|
|
AC_ARG_ENABLE(coverage,
|
|
[ --enable-coverage[=LEVEL]
|
|
enable compiler's code coverage collection.
|
|
Use to measure compiler performance and locate
|
|
unused parts of the compiler. With LEVEL, specify
|
|
optimization. Values are opt, noopt,
|
|
default is noopt],
|
|
[case "${enableval}" in
|
|
yes|noopt)
|
|
coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
|
|
;;
|
|
opt)
|
|
coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
|
|
;;
|
|
no)
|
|
# a.k.a. --disable-coverage
|
|
coverage_flags=""
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR(unknown coverage setting $enableval)
|
|
;;
|
|
esac],
|
|
[coverage_flags=""])
|
|
AC_SUBST(coverage_flags)
|
|
|
|
AC_ARG_ENABLE(gather-detailed-mem-stats,
|
|
[ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
|
|
[enable_gather_detailed_mem_stats=no])
|
|
if test x$enable_gather_detailed_mem_stats = xyes ; then
|
|
AC_DEFINE(GATHER_STATISTICS, 1,
|
|
[Define to enable detailed memory allocation stats gathering.])
|
|
fi
|
|
|
|
# -------------------------------
|
|
# Miscenalleous configure options
|
|
# -------------------------------
|
|
|
|
# See if we are building gcc with C++.
|
|
AC_ARG_ENABLE(build-with-cxx,
|
|
[ --enable-build-with-cxx build with C++ compiler instead of C compiler],
|
|
ENABLE_BUILD_WITH_CXX=$enableval,
|
|
ENABLE_BUILD_WITH_CXX=no)
|
|
AC_SUBST(ENABLE_BUILD_WITH_CXX)
|
|
|
|
# With stabs
|
|
AC_ARG_WITH(stabs,
|
|
[ --with-stabs arrange to use stabs instead of host debug format],
|
|
stabs="$with_stabs",
|
|
stabs=no)
|
|
|
|
# Determine whether or not multilibs are enabled.
|
|
AC_ARG_ENABLE(multilib,
|
|
[ --enable-multilib enable library support for multiple ABIs],
|
|
[], [enable_multilib=yes])
|
|
AC_SUBST(enable_multilib)
|
|
|
|
# Enable __cxa_atexit for C++.
|
|
AC_ARG_ENABLE(__cxa_atexit,
|
|
[ --enable-__cxa_atexit enable __cxa_atexit for C++],
|
|
[], [])
|
|
|
|
# Enable C extension for decimal float if target supports it.
|
|
AC_ARG_ENABLE(decimal-float,
|
|
[ --enable-decimal-float={no,yes,bid,dpd}
|
|
enable decimal float extension to C. Selecting 'bid'
|
|
or 'dpd' choses which decimal floating point format
|
|
to use],
|
|
[
|
|
case $enable_decimal_float in
|
|
yes | no | bid | dpd) ;;
|
|
*) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
|
|
Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
|
|
esac
|
|
],
|
|
[
|
|
case $target in
|
|
powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
|
|
enable_decimal_float=yes
|
|
;;
|
|
*)
|
|
AC_MSG_WARN(decimal float is not supported for this target, ignored)
|
|
enable_decimal_float=no
|
|
;;
|
|
esac
|
|
])
|
|
|
|
dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
|
|
[Define to 1 to enable decimal float extension to C.])
|
|
|
|
# x86's use BID format instead of DPD
|
|
case x$enable_decimal_float in
|
|
xyes)
|
|
case $target in
|
|
i?86*-*-linux* | x86_64*-*-linux*)
|
|
enable_decimal_float=bid
|
|
;;
|
|
*)
|
|
enable_decimal_float=dpd
|
|
;;
|
|
esac
|
|
;;
|
|
xno)
|
|
# ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
|
|
# dependency on libdecnumber.
|
|
enable_decimal_float=dpd
|
|
;;
|
|
esac
|
|
AC_SUBST(enable_decimal_float)
|
|
|
|
bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid,
|
|
[Define to 1 to specify that we are using the BID decimal floating
|
|
point format instead of DPD])
|
|
|
|
# Enable C extension for fixed-point arithmetic.
|
|
AC_ARG_ENABLE(fixed-point,
|
|
[ --enable-fixed-point enable fixed-point arithmetic extension to C],
|
|
[
|
|
],
|
|
[
|
|
case $target in
|
|
mips*-*-*)
|
|
case $host in
|
|
mips*-sgi-irix*)
|
|
AC_MSG_WARN(fixed-point is not supported on IRIX, ignored)
|
|
enable_fixed_point=no
|
|
;;
|
|
*)
|
|
enable_fixed_point=yes
|
|
;;
|
|
esac
|
|
;;
|
|
*)
|
|
AC_MSG_WARN(fixed-point is not supported for this target, ignored)
|
|
enable_fixed_point=no
|
|
;;
|
|
esac
|
|
])
|
|
AC_SUBST(enable_fixed_point)
|
|
|
|
fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint,
|
|
[Define to 1 to enable fixed-point arithmetic extension to C.])
|
|
|
|
# Enable threads
|
|
# Pass with no value to take the default
|
|
# Pass with a value to specify a thread package
|
|
AC_ARG_ENABLE(threads,
|
|
[ --enable-threads enable thread usage for target GCC
|
|
--enable-threads=LIB use LIB thread package for target GCC],,
|
|
[enable_threads=''])
|
|
|
|
AC_ARG_ENABLE(tls,
|
|
[ --enable-tls enable or disable generation of tls code
|
|
overriding the assembler check for tls support],
|
|
[
|
|
case $enable_tls in
|
|
yes | no) ;;
|
|
*) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
|
|
Valid choices are 'yes' and 'no'.]) ;;
|
|
esac
|
|
], [enable_tls=''])
|
|
|
|
AC_ARG_ENABLE(objc-gc,
|
|
[ --enable-objc-gc enable the use of Boehm's garbage collector with
|
|
the GNU Objective-C runtime],
|
|
if test x$enable_objc_gc = xno; then
|
|
objc_boehm_gc=''
|
|
else
|
|
objc_boehm_gc=1
|
|
fi,
|
|
objc_boehm_gc='')
|
|
|
|
AC_ARG_WITH(dwarf2,
|
|
[ --with-dwarf2 force the default debug format to be DWARF 2],
|
|
dwarf2="$with_dwarf2",
|
|
dwarf2=no)
|
|
|
|
AC_ARG_ENABLE(shared,
|
|
[ --disable-shared don't provide a shared libgcc],
|
|
[
|
|
case $enable_shared in
|
|
yes | no) ;;
|
|
*)
|
|
enable_shared=no
|
|
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
|
|
for pkg in $enableval; do
|
|
if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
|
|
enable_shared=yes
|
|
fi
|
|
done
|
|
IFS="$ac_save_ifs"
|
|
;;
|
|
esac
|
|
], [enable_shared=yes])
|
|
AC_SUBST(enable_shared)
|
|
|
|
AC_ARG_WITH(build-sysroot,
|
|
[ --with-build-sysroot=sysroot
|
|
use sysroot as the system root during the build])
|
|
|
|
AC_ARG_WITH(sysroot,
|
|
[ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
|
|
[
|
|
case ${with_sysroot} in
|
|
yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
|
|
*) TARGET_SYSTEM_ROOT=$with_sysroot ;;
|
|
esac
|
|
|
|
TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
|
|
CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
|
|
|
|
if test "x$prefix" = xNONE; then
|
|
test_prefix=/usr/local
|
|
else
|
|
test_prefix=$prefix
|
|
fi
|
|
if test "x$exec_prefix" = xNONE; 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}'|'${exec_prefix}/'*)
|
|
t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
|
|
TARGET_SYSTEM_ROOT_DEFINE="$t"
|
|
;;
|
|
esac
|
|
], [
|
|
TARGET_SYSTEM_ROOT=
|
|
TARGET_SYSTEM_ROOT_DEFINE=
|
|
CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
|
|
])
|
|
AC_SUBST(TARGET_SYSTEM_ROOT)
|
|
AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
|
|
AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
|
|
|
|
# Build with intermodule optimisations
|
|
AC_ARG_ENABLE(intermodule,
|
|
[ --enable-intermodule build the compiler in one step],
|
|
[case ${enable_intermodule} in
|
|
yes) onestep="-onestep";;
|
|
*) onestep="";;
|
|
esac],
|
|
[onestep=""])
|
|
AC_SUBST(onestep)
|
|
|
|
ACX_PKGVERSION([GCC])
|
|
ACX_BUGURL([http://gcc.gnu.org/bugs.html])
|
|
|
|
# Sanity check enable_languages in case someone does not run the toplevel
|
|
# configure # script.
|
|
AC_ARG_ENABLE(languages,
|
|
[ --enable-languages=LIST specify which front-ends to build],
|
|
[case ,${enable_languages}, in
|
|
,,|,yes,)
|
|
# go safe -- we cannot be much sure without the toplevel
|
|
# configure's
|
|
# analysis of which target libs are present and usable
|
|
enable_languages=c
|
|
;;
|
|
*,all,*)
|
|
AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
|
|
;;
|
|
*,c,*)
|
|
;;
|
|
*)
|
|
enable_languages=c,${enable_languages}
|
|
;;
|
|
esac],
|
|
[enable_languages=c])
|
|
|
|
# Used by documentation targets
|
|
AC_SUBST(datarootdir)
|
|
AC_SUBST(docdir)
|
|
AC_SUBST(htmldir)
|
|
|
|
AC_ARG_WITH(multilib-list,
|
|
[ --with-multilib-list Select multilibs (SH only)],
|
|
:,
|
|
with_multilib_list=default)
|
|
|
|
# -------------------------
|
|
# Checks for other programs
|
|
# -------------------------
|
|
|
|
AC_PROG_MAKE_SET
|
|
|
|
# Find some useful tools
|
|
AC_PROG_AWK
|
|
# We need awk to create options.c and options.h.
|
|
# Bail out if it's missing.
|
|
case ${AWK} in
|
|
"") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
|
|
esac
|
|
|
|
gcc_AC_PROG_LN_S
|
|
ACX_PROG_LN($LN_S)
|
|
AC_PROG_RANLIB
|
|
case "${host}" in
|
|
*-*-darwin*)
|
|
# By default, the Darwin ranlib will not treat common symbols as
|
|
# definitions when building the archive table of contents. Other
|
|
# ranlibs do that; pass an option to the Darwin ranlib that makes
|
|
# it behave similarly.
|
|
ranlib_flags="-c"
|
|
;;
|
|
*)
|
|
ranlib_flags=""
|
|
esac
|
|
AC_SUBST(ranlib_flags)
|
|
|
|
gcc_AC_PROG_INSTALL
|
|
|
|
# See if cmp has --ignore-initial.
|
|
gcc_AC_PROG_CMP_IGNORE_INITIAL
|
|
|
|
# See if we have the mktemp command.
|
|
AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
|
|
|
|
# See if makeinfo has been installed and is modern enough
|
|
# that we can use it.
|
|
ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
|
|
[GNU texinfo.* \([0-9][0-9.]*\)],
|
|
[4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
|
|
if test $gcc_cv_prog_makeinfo_modern = no; then
|
|
AC_MSG_WARN([
|
|
*** Makeinfo is missing or too old.
|
|
*** Info documentation will not be built.])
|
|
BUILD_INFO=
|
|
else
|
|
BUILD_INFO=info
|
|
fi
|
|
AC_SUBST(BUILD_INFO)
|
|
|
|
# Is pod2man recent enough to regenerate manpages?
|
|
AC_MSG_CHECKING([for recent Pod::Man])
|
|
if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
|
|
AC_MSG_RESULT(yes)
|
|
GENERATED_MANPAGES=generated-manpages
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
GENERATED_MANPAGES=
|
|
fi
|
|
AC_SUBST(GENERATED_MANPAGES)
|
|
|
|
MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing"
|
|
|
|
# How about lex?
|
|
dnl Don't use AC_PROG_LEX; we insist on flex.
|
|
dnl LEXLIB is not useful in gcc.
|
|
AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
|
|
|
|
# Bison?
|
|
AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
|
|
|
|
# Binutils are not build modules, unlike bison/flex/makeinfo. So we
|
|
# check for build == host before using them.
|
|
|
|
# NM
|
|
if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
|
|
&& test -d ../binutils ; then
|
|
NM='$(objdir)/../binutils/nm-new'
|
|
else
|
|
AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
|
|
fi
|
|
|
|
# AR
|
|
if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
|
|
&& test -d ../binutils ; then
|
|
AR='$(objdir)/../binutils/ar'
|
|
else
|
|
AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
|
|
fi
|
|
|
|
|
|
# --------------------
|
|
# Checks for C headers
|
|
# --------------------
|
|
|
|
# Need to reject headers which give warnings, so that the -Werror bootstrap
|
|
# works later. *sigh* This needs to come before all header checks.
|
|
AC_PROG_CPP_WERROR
|
|
|
|
AC_HEADER_STDC
|
|
AC_HEADER_TIME
|
|
ACX_HEADER_STRING
|
|
AC_HEADER_SYS_WAIT
|
|
AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
|
|
fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
|
|
sys/resource.h sys/param.h sys/times.h sys/stat.h \
|
|
direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
|
|
|
|
# Check for thread headers.
|
|
AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
|
|
AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
|
|
|
|
# These tests can't be done till we know if we have limits.h.
|
|
gcc_AC_C_CHAR_BIT
|
|
AC_C_BIGENDIAN
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
|
|
# These libraries may be used by collect2.
|
|
# We may need a special search path to get them linked.
|
|
AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
|
|
[save_LIBS="$LIBS"
|
|
for libs in '' -lld -lmld \
|
|
'-L/usr/lib/cmplrs/cc2.11 -lmld' \
|
|
'-L/usr/lib/cmplrs/cc3.11 -lmld'
|
|
do
|
|
LIBS="$libs"
|
|
AC_TRY_LINK_FUNC(ldopen,
|
|
[gcc_cv_collect2_libs="$libs"; break])
|
|
done
|
|
LIBS="$save_LIBS"
|
|
test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
|
|
case $gcc_cv_collect2_libs in
|
|
"none required") ;;
|
|
*) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
|
|
esac
|
|
AC_SUBST(COLLECT2_LIBS)
|
|
|
|
# When building Ada code on Alpha, we need exc_resume which is usually in
|
|
# -lexc. So test for it.
|
|
save_LIBS="$LIBS"
|
|
LIBS=
|
|
AC_SEARCH_LIBS(exc_resume, exc)
|
|
GNAT_LIBEXC="$LIBS"
|
|
LIBS="$save_LIBS"
|
|
AC_SUBST(GNAT_LIBEXC)
|
|
|
|
# Some systems put ldexp and frexp in libm instead of libc; assume
|
|
# they're both in the same place. jcf-dump needs them.
|
|
save_LIBS="$LIBS"
|
|
LIBS=
|
|
AC_SEARCH_LIBS(ldexp, m)
|
|
LDEXP_LIB="$LIBS"
|
|
LIBS="$save_LIBS"
|
|
AC_SUBST(LDEXP_LIB)
|
|
|
|
# Use <inttypes.h> only if it exists,
|
|
# doesn't clash with <sys/types.h>, and declares intmax_t.
|
|
AC_MSG_CHECKING(for inttypes.h)
|
|
AC_CACHE_VAL(gcc_cv_header_inttypes_h,
|
|
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
|
|
[[#include <sys/types.h>
|
|
#include <inttypes.h>]],
|
|
[[intmax_t i = -1;]])],
|
|
[gcc_cv_header_inttypes_h=yes],
|
|
[gcc_cv_header_inttypes_h=no])])
|
|
AC_MSG_RESULT($gcc_cv_header_inttypes_h)
|
|
if test $gcc_cv_header_inttypes_h = yes; then
|
|
AC_DEFINE(HAVE_INTTYPES_H, 1,
|
|
[Define if you have a working <inttypes.h> header file.])
|
|
fi
|
|
|
|
dnl Disabled until we have a complete test for buggy enum bitfields.
|
|
dnl gcc_AC_C_ENUM_BF_UNSIGNED
|
|
|
|
define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
|
|
ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
|
|
fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
|
|
fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
|
|
putchar_unlocked putc_unlocked)
|
|
AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
|
|
sysconf strsignal getrusage nl_langinfo \
|
|
gettimeofday mbstowcs wcswidth mmap mincore setlocale \
|
|
gcc_UNLOCKED_FUNCS)
|
|
|
|
if test x$ac_cv_func_mbstowcs = xyes; then
|
|
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
|
|
[ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
|
|
int main()
|
|
{
|
|
mbstowcs(0, "", 0);
|
|
return 0;
|
|
}]])],
|
|
[gcc_cv_func_mbstowcs_works=yes],
|
|
[gcc_cv_func_mbstowcs_works=no],
|
|
[gcc_cv_func_mbstowcs_works=yes])])
|
|
if test x$gcc_cv_func_mbstowcs_works = xyes; then
|
|
AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
|
|
[Define this macro if mbstowcs does not crash when its
|
|
first argument is NULL.])
|
|
fi
|
|
fi
|
|
|
|
AC_CHECK_TYPE(ssize_t, int)
|
|
AC_CHECK_TYPE(caddr_t, char *)
|
|
|
|
gcc_AC_FUNC_MMAP_BLACKLIST
|
|
|
|
case "${host}" in
|
|
*-*-*vms*)
|
|
# Under VMS, vfork works very differently than on Unix. The standard test
|
|
# won't work, and it isn't easily adaptable. It makes more sense to
|
|
# just force it.
|
|
ac_cv_func_vfork_works=yes
|
|
;;
|
|
esac
|
|
AC_FUNC_FORK
|
|
|
|
AM_ICONV
|
|
# Until we have in-tree GNU iconv:
|
|
LIBICONV_DEP=
|
|
AC_SUBST(LIBICONV_DEP)
|
|
|
|
AM_LC_MESSAGES
|
|
|
|
AM_LANGINFO_CODESET
|
|
|
|
# We will need to find libiberty.h and ansidecl.h
|
|
saved_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
|
|
gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
|
|
strsignal strstr strverscmp \
|
|
errno snprintf vsnprintf vasprintf malloc realloc calloc \
|
|
free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"])
|
|
|
|
gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_RESOURCE_H
|
|
#include <sys/resource.h>
|
|
#endif
|
|
])
|
|
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_RESOURCE_H
|
|
#include <sys/resource.h>
|
|
#endif
|
|
]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
|
|
[Define to `long' if <sys/resource.h> doesn't define.])])
|
|
|
|
# On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
|
|
# FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
|
|
# in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
|
|
# to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
|
|
gcc_AC_CHECK_DECLS(ldgetname, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_LDFCN_H
|
|
#undef FREAD
|
|
#undef FWRITE
|
|
#include <ldfcn.h>
|
|
#endif
|
|
])
|
|
|
|
gcc_AC_CHECK_DECLS(times, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_TIMES_H
|
|
#include <sys/times.h>
|
|
#endif
|
|
])
|
|
|
|
gcc_AC_CHECK_DECLS(sigaltstack, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#include <signal.h>
|
|
])
|
|
|
|
# More time-related stuff.
|
|
AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_TIMES_H
|
|
#include <sys/times.h>
|
|
#endif
|
|
]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
|
|
if test $ac_cv_struct_tms = yes; then
|
|
AC_DEFINE(HAVE_STRUCT_TMS, 1,
|
|
[Define if <sys/times.h> defines struct tms.])
|
|
fi
|
|
|
|
# use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
|
|
# revisit after autoconf 2.50.
|
|
AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
|
|
if test $gcc_cv_type_clock_t = yes; then
|
|
AC_DEFINE(HAVE_CLOCK_T, 1,
|
|
[Define if <time.h> defines clock_t.])
|
|
fi
|
|
|
|
# Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
|
|
CFLAGS="$saved_CFLAGS"
|
|
|
|
gcc_AC_INITFINI_ARRAY
|
|
|
|
# mkdir takes a single argument on some systems.
|
|
gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
|
|
|
|
# File extensions
|
|
manext='.1'
|
|
objext='.o'
|
|
AC_SUBST(manext)
|
|
AC_SUBST(objext)
|
|
|
|
# With Setjmp/Longjmp based exception handling.
|
|
AC_ARG_ENABLE(sjlj-exceptions,
|
|
[ --enable-sjlj-exceptions
|
|
arrange to use setjmp/longjmp exception handling],
|
|
[case $target in
|
|
*-*-hpux10*)
|
|
if test $enableval != yes; then
|
|
AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced])
|
|
enableval=yes
|
|
fi
|
|
;;
|
|
esac
|
|
force_sjlj_exceptions=yes],
|
|
[case $target in
|
|
*-*-hpux10*)
|
|
force_sjlj_exceptions=yes
|
|
enableval=yes
|
|
;;
|
|
*)
|
|
force_sjlj_exceptions=no
|
|
;;
|
|
esac])
|
|
if test $force_sjlj_exceptions = yes; then
|
|
sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
|
|
[Define 0/1 to force the choice for exception handling model.])
|
|
fi
|
|
|
|
# For platforms with the unwind ABI which includes an unwind library,
|
|
# libunwind, we can choose to use the system libunwind.
|
|
# config.gcc also contains tests of with_system_libunwind.
|
|
GCC_CHECK_UNWIND_GETIPINFO
|
|
|
|
# --------------------------------------------------------
|
|
# Build, host, and target specific configuration fragments
|
|
# --------------------------------------------------------
|
|
|
|
# Collect build-machine-specific information.
|
|
. ${srcdir}/config.build
|
|
|
|
# Collect host-machine-specific information.
|
|
. ${srcdir}/config.host
|
|
|
|
target_gtfiles=
|
|
|
|
# Collect target-machine-specific information.
|
|
. ${srcdir}/config.gcc
|
|
|
|
extra_objs="${host_extra_objs} ${extra_objs}"
|
|
extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
|
|
|
|
# Default the target-machine variables that were not explicitly set.
|
|
if test x"$tm_file" = x
|
|
then tm_file=$cpu_type/$cpu_type.h; fi
|
|
|
|
if test x"$extra_headers" = x
|
|
then extra_headers=; fi
|
|
|
|
if test x$md_file = x
|
|
then md_file=$cpu_type/$cpu_type.md; fi
|
|
|
|
if test x$out_file = x
|
|
then out_file=$cpu_type/$cpu_type.c; fi
|
|
|
|
if test x"$tmake_file" = x
|
|
then tmake_file=$cpu_type/t-$cpu_type
|
|
fi
|
|
|
|
if test x"$dwarf2" = xyes
|
|
then tm_file="$tm_file tm-dwarf2.h"
|
|
fi
|
|
|
|
# Say what files are being used for the output code and MD file.
|
|
echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
|
|
echo "Using \`$srcdir/config/$md_file' as machine description file."
|
|
|
|
# If any of the xm_file variables contain nonexistent files, warn
|
|
# about them and drop them.
|
|
|
|
bx=
|
|
for x in $build_xm_file; do
|
|
if test -f $srcdir/config/$x
|
|
then bx="$bx $x"
|
|
else AC_MSG_WARN($srcdir/config/$x does not exist.)
|
|
fi
|
|
done
|
|
build_xm_file="$bx"
|
|
|
|
hx=
|
|
for x in $host_xm_file; do
|
|
if test -f $srcdir/config/$x
|
|
then hx="$hx $x"
|
|
else AC_MSG_WARN($srcdir/config/$x does not exist.)
|
|
fi
|
|
done
|
|
host_xm_file="$hx"
|
|
|
|
tx=
|
|
for x in $xm_file; do
|
|
if test -f $srcdir/config/$x
|
|
then tx="$tx $x"
|
|
else AC_MSG_WARN($srcdir/config/$x does not exist.)
|
|
fi
|
|
done
|
|
xm_file="$tx"
|
|
|
|
count=a
|
|
for f in $tm_file; do
|
|
count=${count}x
|
|
done
|
|
if test $count = ax; then
|
|
echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
|
|
else
|
|
echo "Using the following target machine macro files:"
|
|
for f in $tm_file; do
|
|
echo " $srcdir/config/$f"
|
|
done
|
|
fi
|
|
|
|
if test x$need_64bit_hwint = xyes; then
|
|
AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
|
|
[Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
|
|
fi
|
|
|
|
if test x$use_long_long_for_widest_fast_int = xyes; then
|
|
AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
|
|
[Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
|
|
efficiently supported by the host hardware.])
|
|
fi
|
|
|
|
count=a
|
|
for f in $host_xm_file; do
|
|
count=${count}x
|
|
done
|
|
if test $count = a; then
|
|
:
|
|
elif test $count = ax; then
|
|
echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
|
|
else
|
|
echo "Using the following host machine macro files:"
|
|
for f in $host_xm_file; do
|
|
echo " $srcdir/config/$f"
|
|
done
|
|
fi
|
|
echo "Using ${out_host_hook_obj} for host machine hooks."
|
|
|
|
if test "$host_xm_file" != "$build_xm_file"; then
|
|
count=a
|
|
for f in $build_xm_file; do
|
|
count=${count}x
|
|
done
|
|
if test $count = a; then
|
|
:
|
|
elif test $count = ax; then
|
|
echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
|
|
else
|
|
echo "Using the following build machine macro files:"
|
|
for f in $build_xm_file; do
|
|
echo " $srcdir/config/$f"
|
|
done
|
|
fi
|
|
fi
|
|
|
|
case ${host} in
|
|
powerpc*-*-darwin*)
|
|
AC_CACHE_CHECK([whether mcontext_t fields have underscores],
|
|
gcc_cv_mcontext_underscores,
|
|
AC_COMPILE_IFELSE([
|
|
#include <sys/cdefs.h>
|
|
#include <sys/signal.h>
|
|
#include <ucontext.h>
|
|
int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; }
|
|
],
|
|
gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes))
|
|
if test $gcc_cv_mcontext_underscores = yes; then
|
|
AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl
|
|
[mcontext_t fields start with __])
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# ---------
|
|
# Threading
|
|
# ---------
|
|
|
|
# Check if a valid thread package
|
|
case ${enable_threads} in
|
|
"" | no)
|
|
# No threads
|
|
target_thread_file='single'
|
|
;;
|
|
yes)
|
|
# default
|
|
target_thread_file='single'
|
|
;;
|
|
aix | dce | gnat | irix | posix | posix95 | rtems | \
|
|
single | solaris | vxworks | win32 | mipssde)
|
|
target_thread_file=${enable_threads}
|
|
;;
|
|
*)
|
|
echo "${enable_threads} is an unknown thread package" 1>&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
if test x${thread_file} = x; then
|
|
# No thread file set by target-specific clauses in config.gcc,
|
|
# so use file chosen by default logic above
|
|
thread_file=${target_thread_file}
|
|
fi
|
|
|
|
# Make gthr-default.h if we have a thread file.
|
|
gthread_flags=
|
|
if test $thread_file != single; then
|
|
echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h-t
|
|
if diff gthr-default.h-t gthr-default.h 2>/dev/null; then
|
|
rm -f gthr-default.h-t
|
|
else
|
|
mv -f gthr-default.h-t gthr-default.h
|
|
fi
|
|
gthread_flags=-DHAVE_GTHR_DEFAULT
|
|
fi
|
|
AC_SUBST(gthread_flags)
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
use_cxa_atexit=no
|
|
if test x$enable___cxa_atexit = xyes || \
|
|
test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
|
|
if test x$host = x$target; then
|
|
case $host in
|
|
# mingw32 doesn't have __cxa_atexit but uses atexit registration
|
|
# keyed to flag_use_cxa_atexit
|
|
*-*-mingw32*)
|
|
use_cxa_atexit=yes
|
|
;;
|
|
*)
|
|
AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
|
|
[echo "__cxa_atexit can't be enabled on this target"])
|
|
;;
|
|
esac
|
|
else
|
|
# We can't check for __cxa_atexit when building a cross, so assume
|
|
# it is available
|
|
use_cxa_atexit=yes
|
|
fi
|
|
if test x$use_cxa_atexit = xyes; then
|
|
AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
|
|
[Define if you want to use __cxa_atexit, rather than atexit, to
|
|
register C++ destructors for local statics and global objects.
|
|
This is essential for fully standards-compliant handling of
|
|
destructors, but requires __cxa_atexit in libc.])
|
|
fi
|
|
fi
|
|
|
|
# Look for a file containing extra machine modes.
|
|
if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
|
|
extra_modes_file='$(srcdir)'/config/${extra_modes}
|
|
AC_SUBST(extra_modes_file)
|
|
AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
|
|
[Define to the name of a file containing a list of extra machine modes
|
|
for this architecture.])
|
|
fi
|
|
|
|
# Convert extra_options into a form suitable for Makefile use.
|
|
extra_opt_files=
|
|
for f in $extra_options; do
|
|
extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
|
|
done
|
|
AC_SUBST(extra_opt_files)
|
|
|
|
# auto-host.h is the file containing items generated by autoconf and is
|
|
# the first file included by config.h.
|
|
# If host=build, it is correct to have bconfig include auto-host.h
|
|
# as well. If host!=build, we are in error and need to do more
|
|
# work to find out the build config parameters.
|
|
if test x$host = x$build
|
|
then
|
|
build_auto=auto-host.h
|
|
else
|
|
# We create a subdir, then run autoconf in the subdir.
|
|
# To prevent recursion we set host and build for the new
|
|
# invocation of configure to the build for this invocation
|
|
# of configure.
|
|
tempdir=build.$$
|
|
rm -rf $tempdir
|
|
mkdir $tempdir
|
|
cd $tempdir
|
|
case ${srcdir} in
|
|
/* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
|
|
*) realsrcdir=../${srcdir};;
|
|
esac
|
|
saved_CFLAGS="${CFLAGS}"
|
|
CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
|
|
LDFLAGS="${LDFLAGS_FOR_BUILD}" \
|
|
${realsrcdir}/configure \
|
|
--enable-languages=${enable_languages-all} \
|
|
--target=$target_alias --host=$build_alias --build=$build_alias
|
|
CFLAGS="${saved_CFLAGS}"
|
|
|
|
# We just finished tests for the build machine, so rename
|
|
# the file auto-build.h in the gcc directory.
|
|
mv auto-host.h ../auto-build.h
|
|
cd ..
|
|
rm -rf $tempdir
|
|
build_auto=auto-build.h
|
|
fi
|
|
AC_SUBST(build_subdir)
|
|
|
|
tm_file="${tm_file} defaults.h"
|
|
tm_p_file="${tm_p_file} tm-preds.h"
|
|
host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
|
|
build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
|
|
# We don't want ansidecl.h in target files, write code there in ISO/GNU C.
|
|
# put this back in temporarily.
|
|
xm_file="auto-host.h ansidecl.h ${xm_file}"
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
changequote(,)dnl
|
|
# Compile in configure arguments.
|
|
if test -f configargs.h ; then
|
|
# Being re-configured.
|
|
gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
|
|
gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
|
|
else
|
|
gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
|
|
fi
|
|
|
|
# Double all backslashes and backslash all quotes to turn
|
|
# gcc_config_arguments into a C string.
|
|
sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
|
|
$gcc_config_arguments
|
|
EOF
|
|
gcc_config_arguments_str=`cat conftest.out`
|
|
rm -f conftest.out
|
|
|
|
cat > configargs.h <<EOF
|
|
/* Generated automatically. */
|
|
static const char configuration_arguments[] = "$gcc_config_arguments_str";
|
|
static const char thread_model[] = "$thread_file";
|
|
|
|
static const struct {
|
|
const char *name, *value;
|
|
} configure_default_options[] = $configure_default_options;
|
|
EOF
|
|
changequote([,])dnl
|
|
|
|
changequote(,)dnl
|
|
gcc_BASEVER=`cat $srcdir/BASE-VER`
|
|
gcc_DEVPHASE=`cat $srcdir/DEV-PHASE`
|
|
gcc_DATESTAMP=`cat $srcdir/DATESTAMP`
|
|
if test -f $srcdir/REVISION ; then
|
|
gcc_REVISION=`cat $srcdir/REVISION`
|
|
else
|
|
gcc_REVISION=""
|
|
fi
|
|
cat > plugin-version.h <<EOF
|
|
#include "configargs.h"
|
|
|
|
static char basever[] = "$gcc_BASEVER";
|
|
static char datestamp[] = "$gcc_DATESTAMP";
|
|
static char devphase[] = "$gcc_DEVPHASE";
|
|
static char revision[] = "$gcc_REVISION";
|
|
|
|
/* FIXME plugins: We should make the version information more precise.
|
|
One way to do is to add a checksum. */
|
|
|
|
static struct plugin_gcc_version gcc_version = {basever, datestamp,
|
|
devphase, revision,
|
|
configuration_arguments};
|
|
EOF
|
|
changequote([,])dnl
|
|
|
|
# Internationalization
|
|
ZW_GNU_GETTEXT_SISTER_DIR
|
|
|
|
# If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
|
|
# -liconv on the link line twice.
|
|
case "$LIBINTL" in *$LIBICONV*)
|
|
LIBICONV= ;;
|
|
esac
|
|
|
|
AC_ARG_ENABLE(secureplt,
|
|
[ --enable-secureplt enable -msecure-plt by default for PowerPC],
|
|
[], [])
|
|
|
|
AC_ARG_ENABLE(cld,
|
|
[ --enable-cld enable -mcld by default for 32bit x86], [],
|
|
[enable_cld=no])
|
|
|
|
# Windows32 Registry support for specifying GCC installation paths.
|
|
AC_ARG_ENABLE(win32-registry,
|
|
[ --disable-win32-registry
|
|
disable lookup of installation paths in the
|
|
Registry on Windows hosts
|
|
--enable-win32-registry enable registry lookup (default)
|
|
--enable-win32-registry=KEY
|
|
use KEY instead of GCC version as the last portion
|
|
of the registry key],,)
|
|
|
|
case $host_os in
|
|
win32 | pe | cygwin* | mingw32* | uwin*)
|
|
if test "x$enable_win32_registry" != xno; then
|
|
AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
|
|
fi
|
|
|
|
if test "x$enable_win32_registry" != xno; then
|
|
AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
|
|
[Define to 1 if installation paths should be looked up in the Windows
|
|
Registry. Ignored on non-Windows hosts.])
|
|
|
|
if test "x$enable_win32_registry" != xyes \
|
|
&& test "x$enable_win32_registry" != x; then
|
|
AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
|
|
[Define to be the last component of the Windows registry key under which
|
|
to look for installation paths. The full key used will be
|
|
HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
|
|
The default is the GCC version number.])
|
|
fi
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# Get an absolute path to the GCC top-level source directory
|
|
holddir=`${PWDCMD-pwd}`
|
|
cd $srcdir
|
|
topdir=`${PWDCMD-pwd}`
|
|
cd $holddir
|
|
|
|
# Conditionalize the makefile for this host machine.
|
|
xmake_file=
|
|
for f in ${host_xmake_file}
|
|
do
|
|
if test -f ${srcdir}/config/$f
|
|
then
|
|
xmake_file="${xmake_file} \$(srcdir)/config/$f"
|
|
fi
|
|
done
|
|
|
|
# Conditionalize the makefile for this target machine.
|
|
tmake_file_=
|
|
for f in ${tmake_file}
|
|
do
|
|
if test -f ${srcdir}/config/$f
|
|
then
|
|
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
|
|
fi
|
|
done
|
|
tmake_file="${tmake_file_}"
|
|
|
|
out_object_file=`basename $out_file .c`.o
|
|
|
|
tm_file_list="options.h"
|
|
tm_include_list="options.h"
|
|
for f in $tm_file; do
|
|
case $f in
|
|
./* )
|
|
f=`echo $f | sed 's/^..//'`
|
|
tm_file_list="${tm_file_list} $f"
|
|
tm_include_list="${tm_include_list} $f"
|
|
;;
|
|
defaults.h )
|
|
tm_file_list="${tm_file_list} \$(srcdir)/$f"
|
|
tm_include_list="${tm_include_list} $f"
|
|
;;
|
|
* )
|
|
tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
|
|
tm_include_list="${tm_include_list} config/$f"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
tm_p_file_list=
|
|
tm_p_include_list=
|
|
for f in $tm_p_file; do
|
|
case $f in
|
|
tm-preds.h )
|
|
tm_p_file_list="${tm_p_file_list} $f"
|
|
tm_p_include_list="${tm_p_include_list} $f"
|
|
;;
|
|
* )
|
|
tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
|
|
tm_p_include_list="${tm_p_include_list} config/$f"
|
|
esac
|
|
done
|
|
|
|
xm_file_list=
|
|
xm_include_list=
|
|
for f in $xm_file; do
|
|
case $f in
|
|
ansidecl.h )
|
|
xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
|
|
xm_include_list="${xm_include_list} $f"
|
|
;;
|
|
auto-host.h )
|
|
xm_file_list="${xm_file_list} $f"
|
|
xm_include_list="${xm_include_list} $f"
|
|
;;
|
|
* )
|
|
xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
|
|
xm_include_list="${xm_include_list} config/$f"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
host_xm_file_list=
|
|
host_xm_include_list=
|
|
for f in $host_xm_file; do
|
|
case $f in
|
|
ansidecl.h )
|
|
host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
|
|
host_xm_include_list="${host_xm_include_list} $f"
|
|
;;
|
|
auto-host.h )
|
|
host_xm_file_list="${host_xm_file_list} $f"
|
|
host_xm_include_list="${host_xm_include_list} $f"
|
|
;;
|
|
* )
|
|
host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
|
|
host_xm_include_list="${host_xm_include_list} config/$f"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
build_xm_file_list=
|
|
for f in $build_xm_file; do
|
|
case $f in
|
|
ansidecl.h )
|
|
build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
|
|
build_xm_include_list="${build_xm_include_list} $f"
|
|
;;
|
|
auto-build.h | auto-host.h )
|
|
build_xm_file_list="${build_xm_file_list} $f"
|
|
build_xm_include_list="${build_xm_include_list} $f"
|
|
;;
|
|
* )
|
|
build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
|
|
build_xm_include_list="${build_xm_include_list} config/$f"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
# Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a
|
|
# cross-compiler which does not use the native headers and libraries.
|
|
# Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
|
|
CROSS= AC_SUBST(CROSS)
|
|
ALL=all.internal AC_SUBST(ALL)
|
|
SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
|
|
|
|
if test "x$with_build_sysroot" != x; then
|
|
build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
|
|
else
|
|
# This value is used, even on a native system, because
|
|
# CROSS_SYSTEM_HEADER_DIR is just
|
|
# $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
|
|
build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
|
|
fi
|
|
|
|
if test x$host != x$target
|
|
then
|
|
CROSS="-DCROSS_DIRECTORY_STRUCTURE"
|
|
ALL=all.cross
|
|
SYSTEM_HEADER_DIR=$build_system_header_dir
|
|
case "$host","$target" in
|
|
# Darwin crosses can use the host system's libraries and headers,
|
|
# because of the fat library support. Of course, it must be the
|
|
# same version of Darwin on both sides. Allow the user to
|
|
# just say --target=foo-darwin without a version number to mean
|
|
# "the version on this system".
|
|
*-*-darwin*,*-*-darwin*)
|
|
hostos=`echo $host | sed 's/.*-darwin/darwin/'`
|
|
targetos=`echo $target | sed 's/.*-darwin/darwin/'`
|
|
if test $hostos = $targetos -o $targetos = darwin ; then
|
|
CROSS=
|
|
SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
|
|
with_headers=yes
|
|
fi
|
|
;;
|
|
|
|
i?86-*-*,x86_64-*-* \
|
|
| powerpc*-*-*,powerpc64*-*-*)
|
|
CROSS="$CROSS -DNATIVE_CROSS" ;;
|
|
esac
|
|
elif test "x$TARGET_SYSTEM_ROOT" != x; then
|
|
SYSTEM_HEADER_DIR=$build_system_header_dir
|
|
fi
|
|
|
|
# If this is a cross-compiler that does not
|
|
# have its own set of headers then define
|
|
# inhibit_libc
|
|
|
|
# If this is using newlib, without having the headers available now,
|
|
# then define inhibit_libc in LIBGCC2_CFLAGS.
|
|
# This prevents libgcc2 from containing any code which requires libc
|
|
# support.
|
|
: ${inhibit_libc=false}
|
|
if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
|
|
test x$with_newlib = xyes ; } &&
|
|
{ test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
|
|
inhibit_libc=true
|
|
fi
|
|
AC_SUBST(inhibit_libc)
|
|
|
|
# When building gcc with a cross-compiler, we need to adjust things so
|
|
# that the generator programs are still built with the native compiler.
|
|
# Also, we cannot run fixincludes.
|
|
|
|
# These are the normal (build=host) settings:
|
|
CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
|
|
BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
|
|
BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS)
|
|
STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
|
|
|
|
# And these apply if build != host, or we are generating coverage data
|
|
if test x$build != x$host || test "x$coverage_flags" != x
|
|
then
|
|
BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
|
|
BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
|
|
fi
|
|
|
|
# Expand extra_headers to include complete path.
|
|
# This substitutes for lots of t-* files.
|
|
extra_headers_list=
|
|
# Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
|
|
for file in ${extra_headers} ; do
|
|
extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
|
|
done
|
|
|
|
# If use_gcc_tgmath is set, append ginclude/tgmath.h.
|
|
if test x"$use_gcc_tgmath" = xyes
|
|
then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h"
|
|
fi
|
|
|
|
# Define collect2 in Makefile.
|
|
case $host_can_use_collect2 in
|
|
no) collect2= ;;
|
|
*) collect2='collect2$(exeext)' ;;
|
|
esac
|
|
AC_SUBST([collect2])
|
|
|
|
# Add a definition of USE_COLLECT2 if system wants one.
|
|
case $use_collect2 in
|
|
no) use_collect2= ;;
|
|
"") ;;
|
|
*)
|
|
host_xm_defines="${host_xm_defines} USE_COLLECT2"
|
|
xm_defines="${xm_defines} USE_COLLECT2"
|
|
case $host_can_use_collect2 in
|
|
no)
|
|
AC_MSG_ERROR([collect2 is required but cannot be built on this system])
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
# ---------------------------
|
|
# Assembler & linker features
|
|
# ---------------------------
|
|
|
|
# During stage 2, ld is actually gcc/collect-ld, which is a small script to
|
|
# discern between when to use prev-ld/ld-new and when to use ld/ld-new.
|
|
# However when ld-new is first executed from the build tree, libtool will
|
|
# relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers
|
|
# to the build tree. While doing this we need to use the previous-stage
|
|
# linker, or we have an infinite loop. The presence of a shell script as
|
|
# ld/ld-new, and the fact that the script *uses ld itself*, is what confuses
|
|
# the gcc/collect-ld script. So we need to know how libtool works, or
|
|
# exec-tool will fail.
|
|
|
|
m4_defun([_LT_CONFIG_COMMANDS], [])
|
|
AC_PROG_LIBTOOL
|
|
AC_SUBST(objdir)
|
|
AC_SUBST(enable_fast_install)
|
|
|
|
# Identify the assembler which will work hand-in-glove with the newly
|
|
# built GCC, so that we can examine its features. This is the assembler
|
|
# which will be driven by the driver program.
|
|
#
|
|
# If build != host, and we aren't building gas in-tree, we identify a
|
|
# build->target assembler and hope that it will have the same features
|
|
# as the host->target assembler we'll be using.
|
|
gcc_cv_gas_major_version=
|
|
gcc_cv_gas_minor_version=
|
|
gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
|
|
|
|
m4_pattern_allow([AS_FOR_TARGET])dnl
|
|
AS_VAR_SET_IF(gcc_cv_as,, [
|
|
if test -x "$DEFAULT_ASSEMBLER"; then
|
|
gcc_cv_as="$DEFAULT_ASSEMBLER"
|
|
elif test -f $gcc_cv_as_gas_srcdir/configure.in \
|
|
&& test -f ../gas/Makefile \
|
|
&& test x$build = x$host; then
|
|
gcc_cv_as=../gas/as-new$build_exeext
|
|
elif test -x as$build_exeext; then
|
|
# Build using assembler in the current directory.
|
|
gcc_cv_as=./as$build_exeext
|
|
elif test -x $AS_FOR_TARGET; then
|
|
gcc_cv_as="$AS_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
|
|
fi])
|
|
|
|
ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
|
|
AC_SUBST(ORIGINAL_AS_FOR_TARGET)
|
|
case "$ORIGINAL_AS_FOR_TARGET" in
|
|
./as | ./as$build_exeext) ;;
|
|
*) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;;
|
|
esac
|
|
|
|
AC_MSG_CHECKING(what assembler to use)
|
|
if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
|
|
# Single tree build which includes gas. We want to prefer it
|
|
# over whatever linker top-level may have detected, since
|
|
# we'll use what we're building after installation anyway.
|
|
AC_MSG_RESULT(newly built gas)
|
|
in_tree_gas=yes
|
|
_gcc_COMPUTE_GAS_VERSION
|
|
in_tree_gas_is_elf=no
|
|
if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
|
|
|| (grep 'obj_format = multi' ../gas/Makefile \
|
|
&& grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
|
|
then
|
|
in_tree_gas_is_elf=yes
|
|
fi
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_as)
|
|
in_tree_gas=no
|
|
fi
|
|
|
|
# Identify the linker which will work hand-in-glove with the newly
|
|
# built GCC, so that we can examine its features. This is the linker
|
|
# which will be driven by the driver program.
|
|
#
|
|
# If build != host, and we aren't building gas in-tree, we identify a
|
|
# build->target linker and hope that it will have the same features
|
|
# as the host->target linker we'll be using.
|
|
gcc_cv_gld_major_version=
|
|
gcc_cv_gld_minor_version=
|
|
gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
|
|
gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
|
|
|
|
AS_VAR_SET_IF(gcc_cv_ld,, [
|
|
if test -x "$DEFAULT_LINKER"; then
|
|
gcc_cv_ld="$DEFAULT_LINKER"
|
|
elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
|
|
&& test -f ../ld/Makefile \
|
|
&& test x$build = x$host; then
|
|
gcc_cv_ld=../ld/ld-new$build_exeext
|
|
elif test -x collect-ld$build_exeext; then
|
|
# Build using linker in the current directory.
|
|
gcc_cv_ld=./collect-ld$build_exeext
|
|
elif test -x $LD_FOR_TARGET; then
|
|
gcc_cv_ld="$LD_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
|
|
fi])
|
|
|
|
ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
|
|
AC_SUBST(ORIGINAL_LD_FOR_TARGET)
|
|
case "$ORIGINAL_LD_FOR_TARGET" in
|
|
./collect-ld | ./collect-ld$build_exeext) ;;
|
|
*) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;;
|
|
esac
|
|
|
|
AC_MSG_CHECKING(what linker to use)
|
|
if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
|
|
# Single tree build which includes ld. We want to prefer it
|
|
# over whatever linker top-level may have detected, since
|
|
# we'll use what we're building after installation anyway.
|
|
AC_MSG_RESULT(newly built ld)
|
|
in_tree_ld=yes
|
|
in_tree_ld_is_elf=no
|
|
if (grep 'EMUL = .*elf' ../ld/Makefile \
|
|
|| grep 'EMUL = .*linux' ../ld/Makefile \
|
|
|| grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
|
|
in_tree_ld_is_elf=yes
|
|
fi
|
|
for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
|
|
do
|
|
changequote(,)dnl
|
|
gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
|
|
if test x$gcc_cv_gld_version != x; then
|
|
break
|
|
fi
|
|
done
|
|
gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
|
|
gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
|
|
changequote([,])dnl
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_ld)
|
|
in_tree_ld=no
|
|
fi
|
|
|
|
# Figure out what nm we will be using.
|
|
gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
|
|
AS_VAR_SET_IF(gcc_cv_nm,, [
|
|
if test -f $gcc_cv_binutils_srcdir/configure.in \
|
|
&& test -f ../binutils/Makefile \
|
|
&& test x$build = x$host; then
|
|
gcc_cv_nm=../binutils/nm-new$build_exeext
|
|
elif test -x nm$build_exeext; then
|
|
gcc_cv_nm=./nm$build_exeext
|
|
elif test -x $NM_FOR_TARGET; then
|
|
gcc_cv_nm="$NM_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
|
|
fi])
|
|
|
|
AC_MSG_CHECKING(what nm to use)
|
|
if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
|
|
# Single tree build which includes binutils.
|
|
AC_MSG_RESULT(newly built nm)
|
|
in_tree_nm=yes
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_nm)
|
|
in_tree_nm=no
|
|
fi
|
|
|
|
ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
|
|
AC_SUBST(ORIGINAL_NM_FOR_TARGET)
|
|
case "$ORIGINAL_NM_FOR_TARGET" in
|
|
./nm | ./nm$build_exeext) ;;
|
|
*) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;;
|
|
esac
|
|
|
|
|
|
# Figure out what objdump we will be using.
|
|
AS_VAR_SET_IF(gcc_cv_objdump,, [
|
|
if test -f $gcc_cv_binutils_srcdir/configure.in \
|
|
&& test -f ../binutils/Makefile \
|
|
&& test x$build = x$host; then
|
|
# Single tree build which includes binutils.
|
|
gcc_cv_objdump=../binutils/objdump$build_exeext
|
|
elif test -x objdump$build_exeext; then
|
|
gcc_cv_objdump=./objdump$build_exeext
|
|
elif test -x $OBJDUMP_FOR_TARGET; then
|
|
gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
|
|
fi])
|
|
|
|
AC_MSG_CHECKING(what objdump to use)
|
|
if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
|
|
# Single tree build which includes binutils.
|
|
AC_MSG_RESULT(newly built objdump)
|
|
elif test x$gcc_cv_objdump = x; then
|
|
AC_MSG_RESULT(not found)
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_objdump)
|
|
fi
|
|
|
|
# Figure out what readelf we will be using.
|
|
AS_VAR_SET_IF(gcc_cv_readelf,, [
|
|
if test -f $gcc_cv_binutils_srcdir/configure.in \
|
|
&& test -f ../binutils/Makefile \
|
|
&& test x$build = x$host; then
|
|
# Single tree build which includes binutils.
|
|
gcc_cv_readelf=../binutils/readelf$build_exeext
|
|
elif test -x readelf$build_exeext; then
|
|
gcc_cv_readelf=./readelf$build_exeext
|
|
else
|
|
AC_PATH_PROG(gcc_cv_readelf, readelf)
|
|
fi])
|
|
|
|
AC_MSG_CHECKING(what readelf to use)
|
|
if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then
|
|
# Single tree build which includes binutils.
|
|
AC_MSG_RESULT(newly built readelf)
|
|
elif test x$gcc_cv_readelf = x; then
|
|
AC_MSG_RESULT(not found)
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_readelf)
|
|
fi
|
|
|
|
# Figure out what assembler alignment features are present.
|
|
gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
|
|
[2,6,0],,
|
|
[.balign 4
|
|
.p2align 2],,
|
|
[AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
|
|
[Define if your assembler supports .balign and .p2align.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
|
|
[2,8,0],,
|
|
[.p2align 4,,7],,
|
|
[AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
|
|
[Define if your assembler supports specifying the maximum number
|
|
of bytes to skip when using the GAS .p2align command.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16,
|
|
[2,8,0],,
|
|
[.literal16],,
|
|
[AC_DEFINE(HAVE_GAS_LITERAL16, 1,
|
|
[Define if your assembler supports .literal16.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
|
|
[elf,2,9,0],,
|
|
[conftest_label1: .word 0
|
|
.subsection -1
|
|
conftest_label2: .word 0
|
|
.previous],
|
|
[if test x$gcc_cv_nm != x; then
|
|
$gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
|
|
$gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
|
|
if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
|
|
then :
|
|
else gcc_cv_as_subsection_m1=yes
|
|
fi
|
|
rm -f conftest.nm1 conftest.nm2
|
|
fi],
|
|
[AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
|
|
[Define if your assembler supports .subsection and .subsection -1 starts
|
|
emitting at the beginning of your section.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
|
|
[2,2,0],,
|
|
[ .weak foobar],,
|
|
[AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
|
|
[2,17,0],,
|
|
[ .weakref foobar, barfnot],,
|
|
[AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
|
|
[2,15,91],,
|
|
[ .SPACE $TEXT$
|
|
.NSUBSPA $CODE$,COMDAT],,
|
|
[AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
|
|
|
|
# .hidden needs to be supported in both the assembler and the linker,
|
|
# because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
|
|
# This is irritatingly difficult to feature test for; we have to check the
|
|
# date string after the version number. If we've got an in-tree
|
|
# ld, we don't know its patchlevel version, so we set the baseline at 2.13
|
|
# to be safe.
|
|
# The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
|
|
gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
|
|
[elf,2,13,0],,
|
|
[ .hidden foobar
|
|
foobar:])
|
|
|
|
AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
|
|
[if test $in_tree_ld = yes ; then
|
|
gcc_cv_ld_hidden=no
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_hidden=yes
|
|
fi
|
|
else
|
|
changequote(,)dnl
|
|
gcc_cv_ld_hidden=yes
|
|
ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
|
|
if echo "$ld_ver" | grep GNU > /dev/null; then
|
|
ld_vers=`echo $ld_ver | sed -n \
|
|
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
|
|
ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
|
|
ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
|
|
ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
|
|
ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
|
|
if test 0"$ld_date" -lt 20020404; then
|
|
if test -n "$ld_date"; then
|
|
# If there was date string, but was earlier than 2002-04-04, fail
|
|
gcc_cv_ld_hidden=no
|
|
elif test -z "$ld_vers"; then
|
|
# If there was no date string nor ld version number, something is wrong
|
|
gcc_cv_ld_hidden=no
|
|
else
|
|
test -z "$ld_vers_patch" && ld_vers_patch=0
|
|
if test "$ld_vers_major" -lt 2; then
|
|
gcc_cv_ld_hidden=no
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
|
|
gcc_cv_ld_hidden="no"
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
|
|
gcc_cv_ld_hidden=no
|
|
fi
|
|
fi
|
|
fi
|
|
else
|
|
case "${target}" in
|
|
hppa64*-*-hpux* | ia64*-*-hpux*)
|
|
gcc_cv_ld_hidden=yes
|
|
;;
|
|
*-*-solaris2.9* | *-*-solaris2.1[0-9]*)
|
|
gcc_cv_ld_hidden=yes
|
|
;;
|
|
*)
|
|
gcc_cv_ld_hidden=no
|
|
;;
|
|
esac
|
|
fi
|
|
changequote([,])dnl
|
|
fi])
|
|
libgcc_visibility=no
|
|
AC_SUBST(libgcc_visibility)
|
|
GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
|
|
if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
|
|
libgcc_visibility=yes
|
|
AC_DEFINE(HAVE_GAS_HIDDEN, 1,
|
|
[Define if your assembler and linker support .hidden.])
|
|
fi
|
|
|
|
AC_MSG_CHECKING(linker read-only and read-write section mixing)
|
|
gcc_cv_ld_ro_rw_mix=unknown
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_ro_rw_mix=read-write
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
|
|
echo '.section myfoosect, "a"' > conftest1.s
|
|
echo '.section myfoosect, "aw"' > conftest2.s
|
|
echo '.byte 1' >> conftest2.s
|
|
echo '.section myfoosect, "a"' > conftest3.s
|
|
echo '.byte 0' >> conftest3.s
|
|
if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld -shared -o conftest1.so conftest1.o \
|
|
conftest2.o conftest3.o > /dev/null 2>&1; then
|
|
gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
|
|
| sed -e '/myfoosect/!d' -e N`
|
|
if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
|
|
if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
|
|
gcc_cv_ld_ro_rw_mix=read-only
|
|
else
|
|
gcc_cv_ld_ro_rw_mix=read-write
|
|
fi
|
|
fi
|
|
fi
|
|
changequote(,)dnl
|
|
rm -f conftest.* conftest[123].*
|
|
changequote([,])dnl
|
|
fi
|
|
if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
|
|
AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
|
|
[Define if your linker links a mix of read-only
|
|
and read-write sections into a read-write section.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
|
|
|
|
# Check if we have .[us]leb128, and support symbol arithmetic with it.
|
|
gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
|
|
[elf,2,11,0],,
|
|
[ .data
|
|
.uleb128 L2 - L1
|
|
L1:
|
|
.uleb128 1280
|
|
.sleb128 -1010
|
|
L2:],
|
|
[# GAS versions before 2.11 do not support uleb128,
|
|
# despite appearing to.
|
|
# ??? There exists an elf-specific test that will crash
|
|
# the assembler. Perhaps it's better to figure out whether
|
|
# arbitrary sections are supported and try the test.
|
|
as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
|
|
if echo "$as_ver" | grep GNU > /dev/null; then
|
|
changequote(,)dnl
|
|
as_vers=`echo $as_ver | sed -n \
|
|
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
|
|
as_major=`expr "$as_vers" : '\([0-9]*\)'`
|
|
as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'`
|
|
changequote([,])dnl
|
|
if test $as_major -eq 2 && test $as_minor -lt 11
|
|
then :
|
|
else gcc_cv_as_leb128=yes
|
|
fi
|
|
fi],
|
|
[AC_DEFINE(HAVE_AS_LEB128, 1,
|
|
[Define if your assembler supports .sleb128 and .uleb128.])])
|
|
|
|
# Check if we have assembler support for unwind directives.
|
|
gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,
|
|
,,
|
|
[ .text
|
|
.cfi_startproc
|
|
.cfi_offset 0, 0
|
|
.cfi_same_value 1
|
|
.cfi_def_cfa 1, 2
|
|
.cfi_escape 1, 2, 3, 4, 5
|
|
.cfi_endproc],
|
|
[case "$target" in
|
|
*-*-solaris*)
|
|
# If the linker used on Solaris (like Sun ld) isn't capable of merging
|
|
# read-only and read-write sections, we need to make sure that the
|
|
# assembler used emits read-write .eh_frame sections.
|
|
if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then
|
|
if test "x$gcc_cv_objdump" != x; then
|
|
if $gcc_cv_objdump -h conftest.o 2>/dev/null | \
|
|
sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
|
|
gcc_cv_as_cfi_directive=no
|
|
else
|
|
gcc_cv_as_cfi_directive=yes
|
|
fi
|
|
else
|
|
# no objdump, err on the side of caution
|
|
gcc_cv_as_cfi_directive=no
|
|
fi
|
|
else
|
|
gcc_cv_as_cfi_directive=yes
|
|
fi
|
|
;;
|
|
*-*-*)
|
|
gcc_cv_as_cfi_directive=yes
|
|
;;
|
|
esac])
|
|
if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then
|
|
gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,
|
|
,,
|
|
[ .text
|
|
.cfi_startproc
|
|
.cfi_adjust_cfa_offset 64
|
|
.skip 512, 0
|
|
.cfi_adjust_cfa_offset 128
|
|
.cfi_endproc],
|
|
[
|
|
changequote(,)dnl
|
|
if $gcc_cv_readelf -wf conftest.o 2>/dev/null \
|
|
| grep 'DW_CFA_advance_loc[12]:[ ][ ]*512[ ]' >/dev/null; then
|
|
gcc_cv_as_cfi_advance_working=yes
|
|
fi
|
|
changequote([,])dnl
|
|
])
|
|
else
|
|
# no readelf, err on the side of caution
|
|
gcc_cv_as_cfi_advance_working=no
|
|
fi
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
|
|
[`if test $gcc_cv_as_cfi_directive = yes \
|
|
&& test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your assembler supports CFI directives.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([cfi personality directive],
|
|
gcc_cv_as_cfi_personality_directive, ,,
|
|
[ .text
|
|
.cfi_startproc
|
|
.cfi_personality 0, symbol
|
|
.cfi_endproc])
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE,
|
|
[`if test $gcc_cv_as_cfi_personality_directive = yes;
|
|
then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your assembler supports .cfi_personality.])
|
|
|
|
# GAS versions up to and including 2.11.0 may mis-optimize
|
|
# .eh_frame data.
|
|
gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
|
|
[elf,2,12,0],,
|
|
[ .text
|
|
.LFB1:
|
|
.4byte 0
|
|
.L1:
|
|
.4byte 0
|
|
.LFE1:
|
|
.section .eh_frame,"aw",@progbits
|
|
__FRAME_BEGIN__:
|
|
.4byte .LECIE1-.LSCIE1
|
|
.LSCIE1:
|
|
.4byte 0x0
|
|
.byte 0x1
|
|
.ascii "z\0"
|
|
.byte 0x1
|
|
.byte 0x78
|
|
.byte 0x1a
|
|
.byte 0x0
|
|
.byte 0x4
|
|
.4byte 1
|
|
.p2align 1
|
|
.LECIE1:
|
|
.LSFDE1:
|
|
.4byte .LEFDE1-.LASFDE1
|
|
.LASFDE1:
|
|
.4byte .LASFDE1-__FRAME_BEGIN__
|
|
.4byte .LFB1
|
|
.4byte .LFE1-.LFB1
|
|
.byte 0x4
|
|
.4byte .LFE1-.LFB1
|
|
.byte 0x4
|
|
.4byte .L1-.LFB1
|
|
.LEFDE1:],
|
|
[ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
|
|
cat > conftest.lit <<EOF
|
|
0000 10000000 00000000 017a0001 781a0004 .........z..x...
|
|
0010 01000000 12000000 18000000 00000000 ................
|
|
0020 08000000 04080000 0044 .........D @&t@
|
|
EOF
|
|
cat > conftest.big <<EOF
|
|
0000 00000010 00000000 017a0001 781a0004 .........z..x...
|
|
0010 00000001 00000012 00000018 00000000 ................
|
|
0020 00000008 04000000 0844 .........D @&t@
|
|
EOF
|
|
# If the assembler didn't choke, and we can objdump,
|
|
# and we got the correct data, then succeed.
|
|
# The text in the here-document typically retains its unix-style line
|
|
# endings, while the output of objdump will use host line endings.
|
|
# Therefore, use diff -b for the comparisons.
|
|
if test x$gcc_cv_objdump != x \
|
|
&& $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
|
|
| tail -3 > conftest.got \
|
|
&& { diff -b conftest.lit conftest.got > /dev/null 2>&1 \
|
|
|| diff -b conftest.big conftest.got > /dev/null 2>&1; }
|
|
then
|
|
gcc_cv_as_eh_frame=yes
|
|
elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
|
|
gcc_cv_as_eh_frame=buggy
|
|
else
|
|
# Uh oh, what do we do now?
|
|
gcc_cv_as_eh_frame=no
|
|
fi])
|
|
|
|
if test $gcc_cv_as_eh_frame = buggy; then
|
|
AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
|
|
[Define if your assembler mis-optimizes .eh_frame data.])
|
|
fi
|
|
|
|
gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
|
|
[elf,2,12,0], [--fatal-warnings],
|
|
[.section .rodata.str, "aMS", @progbits, 1])
|
|
if test $gcc_cv_as_shf_merge = no; then
|
|
gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
|
|
[elf,2,12,0], [--fatal-warnings],
|
|
[.section .rodata.str, "aMS", %progbits, 1])
|
|
fi
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
|
|
[`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
|
|
|
|
gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
|
|
[elf,2,16,0], [--fatal-warnings],
|
|
[.section .text,"axG",@progbits,.foo,comdat])
|
|
if test $gcc_cv_as_comdat_group = yes; then
|
|
gcc_cv_as_comdat_group_percent=no
|
|
else
|
|
gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
|
|
[elf,2,16,0], [--fatal-warnings],
|
|
[.section .text,"axG",%progbits,.foo,comdat])
|
|
fi
|
|
if test $in_tree_ld != yes && test x"$ld_vers" != x; then
|
|
comdat_group=yes
|
|
if test 0"$ld_date" -lt 20050308; then
|
|
if test -n "$ld_date"; then
|
|
# If there was date string, but was earlier than 2005-03-08, fail
|
|
comdat_group=no
|
|
elif test "$ld_vers_major" -lt 2; then
|
|
comdat_group=no
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
|
|
comdat_group=no
|
|
fi
|
|
fi
|
|
else
|
|
# assume linkers other than GNU ld don't support COMDAT group
|
|
comdat_group=no
|
|
fi
|
|
if test $comdat_group = no; then
|
|
gcc_cv_as_comdat_group=no
|
|
gcc_cv_as_comdat_group_percent=no
|
|
fi
|
|
AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
|
|
[`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your assembler and linker support COMDAT groups.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([line table discriminator support],
|
|
gcc_cv_as_discriminator,
|
|
[2,19,51],,
|
|
[ .text
|
|
.file 1 "conf.c"
|
|
.loc 1 1 0 discriminator 1],,
|
|
[AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1,
|
|
[Define if your assembler supports the .loc discriminator sub-directive.])])
|
|
|
|
# Thread-local storage - the check is heavily parameterized.
|
|
conftest_s=
|
|
tls_first_major=
|
|
tls_first_minor=
|
|
tls_as_opt=
|
|
case "$target" in
|
|
changequote(,)dnl
|
|
alpha*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
ldq $27,__tls_get_addr($29) !literal!1
|
|
lda $16,foo($29) !tlsgd!1
|
|
jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
|
|
ldq $27,__tls_get_addr($29) !literal!2
|
|
lda $16,foo($29) !tlsldm!2
|
|
jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
|
|
ldq $1,foo($29) !gotdtprel
|
|
ldah $2,foo($29) !dtprelhi
|
|
lda $3,foo($2) !dtprello
|
|
lda $4,foo($29) !dtprel
|
|
ldq $1,foo($29) !gottprel
|
|
ldah $2,foo($29) !tprelhi
|
|
lda $3,foo($2) !tprello
|
|
lda $4,foo($29) !tprel'
|
|
tls_first_major=2
|
|
tls_first_minor=13
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
cris-*-*|crisv32-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
x: .long 25
|
|
.text
|
|
move.d x:IE,$r10
|
|
nop'
|
|
tls_first_major=2
|
|
tls_first_minor=20
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
frv*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
x: .long 25
|
|
.text
|
|
call #gettlsoff(x)'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
;;
|
|
hppa*-*-linux*)
|
|
conftest_s='
|
|
t1: .reg %r20
|
|
t2: .reg %r21
|
|
gp: .reg %r19
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
.align 4
|
|
addil LT%foo-$tls_gdidx$,gp
|
|
ldo RT%foo-$tls_gdidx$(%r1),%arg0
|
|
b __tls_get_addr
|
|
nop
|
|
addil LT%foo-$tls_ldidx$,gp
|
|
b __tls_get_addr
|
|
ldo RT%foo-$tls_ldidx$(%r1),%arg0
|
|
addil LR%foo-$tls_dtpoff$,%ret0
|
|
ldo RR%foo-$tls_dtpoff$(%r1),%t1
|
|
mfctl %cr27,%t1
|
|
addil LT%foo-$tls_ieoff$,gp
|
|
ldw RT%foo-$tls_ieoff$(%r1),%t2
|
|
add %t1,%t2,%t3
|
|
mfctl %cr27,%t1
|
|
addil LR%foo-$tls_leoff$,%t1
|
|
ldo RR%foo-$tls_leoff$(%r1),%t2'
|
|
tls_first_major=2
|
|
tls_first_minor=15
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
arm*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",%progbits
|
|
foo: .long 25
|
|
.text
|
|
.word foo(gottpoff)
|
|
.word foo(tpoff)
|
|
.word foo(tlsgd)
|
|
.word foo(tlsldm)
|
|
.word foo(tlsldo)'
|
|
tls_first_major=2
|
|
tls_first_minor=17
|
|
;;
|
|
i[34567]86-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
movl %gs:0, %eax
|
|
leal foo@TLSGD(,%ebx,1), %eax
|
|
leal foo@TLSLDM(%ebx), %eax
|
|
leal foo@DTPOFF(%eax), %edx
|
|
movl foo@GOTTPOFF(%ebx), %eax
|
|
subl foo@GOTTPOFF(%ebx), %eax
|
|
addl foo@GOTNTPOFF(%ebx), %eax
|
|
movl foo@INDNTPOFF, %eax
|
|
movl $foo@TPOFF, %eax
|
|
subl $foo@TPOFF, %eax
|
|
leal foo@NTPOFF(%ecx), %eax'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
x86_64-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
movq %fs:0, %rax
|
|
leaq foo@TLSGD(%rip), %rdi
|
|
leaq foo@TLSLD(%rip), %rdi
|
|
leaq foo@DTPOFF(%rax), %rdx
|
|
movq foo@GOTTPOFF(%rip), %rax
|
|
movq $foo@TPOFF, %rax'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
ia64-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: data8 25
|
|
.text
|
|
addl r16 = @ltoff(@dtpmod(foo#)), gp
|
|
addl r17 = @ltoff(@dtprel(foo#)), gp
|
|
addl r18 = @ltoff(@tprel(foo#)), gp
|
|
addl r19 = @dtprel(foo#), gp
|
|
adds r21 = @dtprel(foo#), r13
|
|
movl r23 = @dtprel(foo#)
|
|
addl r20 = @tprel(foo#), gp
|
|
adds r22 = @tprel(foo#), r13
|
|
movl r24 = @tprel(foo#)'
|
|
tls_first_major=2
|
|
tls_first_minor=13
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
mips*-*-*)
|
|
conftest_s='
|
|
.section .tdata,"awT",@progbits
|
|
x:
|
|
.word 2
|
|
.text
|
|
addiu $4, $28, %tlsgd(x)
|
|
addiu $4, $28, %tlsldm(x)
|
|
lui $4, %dtprel_hi(x)
|
|
addiu $4, $4, %dtprel_lo(x)
|
|
lw $4, %gottprel(x)($28)
|
|
lui $4, %tprel_hi(x)
|
|
addiu $4, $4, %tprel_lo(x)'
|
|
tls_first_major=2
|
|
tls_first_minor=16
|
|
tls_as_opt='-32 --fatal-warnings'
|
|
;;
|
|
m68k-*-*)
|
|
conftest_s='
|
|
.section .tdata,"awT",@progbits
|
|
x:
|
|
.word 2
|
|
.text
|
|
foo:
|
|
move.l x@TLSGD(%a5),%a0
|
|
move.l x@TLSLDM(%a5),%a0
|
|
move.l x@TLSLDO(%a5),%a0
|
|
move.l x@TLSIE(%a5),%a0
|
|
move.l x@TLSLE(%a5),%a0'
|
|
tls_first_major=2
|
|
tls_first_minor=19
|
|
tls_as_opt='--fatal-warnings'
|
|
;;
|
|
powerpc-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
.align 2
|
|
ld0: .space 4
|
|
ld1: .space 4
|
|
x1: .space 4
|
|
x2: .space 4
|
|
x3: .space 4
|
|
.text
|
|
addi 3,31,ld0@got@tlsgd
|
|
bl __tls_get_addr
|
|
addi 3,31,x1@got@tlsld
|
|
bl __tls_get_addr
|
|
addi 9,3,x1@dtprel
|
|
addis 9,3,x2@dtprel@ha
|
|
addi 9,9,x2@dtprel@l
|
|
lwz 9,x3@got@tprel(31)
|
|
add 9,9,x@tls
|
|
addi 9,2,x1@tprel
|
|
addis 9,2,x2@tprel@ha
|
|
addi 9,9,x2@tprel@l'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt="-a32 --fatal-warnings"
|
|
;;
|
|
powerpc64-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
.align 3
|
|
ld0: .space 8
|
|
ld1: .space 8
|
|
x1: .space 8
|
|
x2: .space 8
|
|
x3: .space 8
|
|
.text
|
|
addi 3,2,ld0@got@tlsgd
|
|
bl .__tls_get_addr
|
|
nop
|
|
addi 3,2,ld1@toc
|
|
bl .__tls_get_addr
|
|
nop
|
|
addi 3,2,x1@got@tlsld
|
|
bl .__tls_get_addr
|
|
nop
|
|
addi 9,3,x1@dtprel
|
|
bl .__tls_get_addr
|
|
nop
|
|
addis 9,3,x2@dtprel@ha
|
|
addi 9,9,x2@dtprel@l
|
|
bl .__tls_get_addr
|
|
nop
|
|
ld 9,x3@got@dtprel(2)
|
|
add 9,9,3
|
|
bl .__tls_get_addr
|
|
nop'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt="-a64 --fatal-warnings"
|
|
;;
|
|
s390-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
.long foo@TLSGD
|
|
.long foo@TLSLDM
|
|
.long foo@DTPOFF
|
|
.long foo@NTPOFF
|
|
.long foo@GOTNTPOFF
|
|
.long foo@INDNTPOFF
|
|
l %r1,foo@GOTNTPOFF(%r12)
|
|
l %r1,0(%r1):tls_load:foo
|
|
bas %r14,0(%r1,%r13):tls_gdcall:foo
|
|
bas %r14,0(%r1,%r13):tls_ldcall:foo'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt="-m31 --fatal-warnings"
|
|
;;
|
|
s390x-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
.quad foo@TLSGD
|
|
.quad foo@TLSLDM
|
|
.quad foo@DTPOFF
|
|
.quad foo@NTPOFF
|
|
.quad foo@GOTNTPOFF
|
|
lg %r1,foo@GOTNTPOFF(%r12)
|
|
larl %r1,foo@INDNTPOFF
|
|
brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
|
|
brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt="-m64 -Aesame --fatal-warnings"
|
|
;;
|
|
sh-*-* | sh[34]-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
.long foo@TLSGD
|
|
.long foo@TLSLDM
|
|
.long foo@DTPOFF
|
|
.long foo@GOTTPOFF
|
|
.long foo@TPOFF'
|
|
tls_first_major=2
|
|
tls_first_minor=13
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
sparc*-*-*)
|
|
case "$target" in
|
|
sparc*-sun-solaris2.[56789]*)
|
|
# TLS was introduced in the Solaris 9 4/04 release but
|
|
# we do not enable it by default on Solaris 9 either.
|
|
if test "x$enable_tls" = xyes ; then
|
|
on_solaris=yes
|
|
else
|
|
enable_tls=no;
|
|
fi
|
|
;;
|
|
sparc*-sun-solaris2.*)
|
|
on_solaris=yes
|
|
;;
|
|
*)
|
|
on_solaris=no
|
|
;;
|
|
esac
|
|
if test x$on_solaris = xyes && test x$gas_flag = xno; then
|
|
conftest_s='
|
|
.section ".tdata",#alloc,#write,#tls
|
|
foo: .long 25
|
|
.text
|
|
sethi %tgd_hi22(foo), %o0
|
|
add %o0, %tgd_lo10(foo), %o1
|
|
add %l7, %o1, %o0, %tgd_add(foo)
|
|
call __tls_get_addr, %tgd_call(foo)
|
|
sethi %tldm_hi22(foo), %l1
|
|
add %l1, %tldm_lo10(foo), %l2
|
|
add %l7, %l2, %o0, %tldm_add(foo)
|
|
call __tls_get_addr, %tldm_call(foo)
|
|
sethi %tldo_hix22(foo), %l3
|
|
xor %l3, %tldo_lox10(foo), %l4
|
|
add %o0, %l4, %l5, %tldo_add(foo)
|
|
sethi %tie_hi22(foo), %o3
|
|
add %o3, %tie_lo10(foo), %o3
|
|
ld [%l7 + %o3], %o2, %tie_ld(foo)
|
|
add %g7, %o2, %o4, %tie_add(foo)
|
|
sethi %tle_hix22(foo), %l1
|
|
xor %l1, %tle_lox10(foo), %o5
|
|
ld [%g7 + %o5], %o1'
|
|
tls_first_major=0
|
|
tls_first_minor=0
|
|
else
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
sethi %tgd_hi22(foo), %o0
|
|
add %o0, %tgd_lo10(foo), %o1
|
|
add %l7, %o1, %o0, %tgd_add(foo)
|
|
call __tls_get_addr, %tgd_call(foo)
|
|
sethi %tldm_hi22(foo), %l1
|
|
add %l1, %tldm_lo10(foo), %l2
|
|
add %l7, %l2, %o0, %tldm_add(foo)
|
|
call __tls_get_addr, %tldm_call(foo)
|
|
sethi %tldo_hix22(foo), %l3
|
|
xor %l3, %tldo_lox10(foo), %l4
|
|
add %o0, %l4, %l5, %tldo_add(foo)
|
|
sethi %tie_hi22(foo), %o3
|
|
add %o3, %tie_lo10(foo), %o3
|
|
ld [%l7 + %o3], %o2, %tie_ld(foo)
|
|
add %g7, %o2, %o4, %tie_add(foo)
|
|
sethi %tle_hix22(foo), %l1
|
|
xor %l1, %tle_lox10(foo), %o5
|
|
ld [%g7 + %o5], %o1'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt="-32 --fatal-warnings"
|
|
fi
|
|
;;
|
|
xtensa*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
movi a8, foo@TLSFUNC
|
|
movi a10, foo@TLSARG
|
|
callx8.tls a8, foo@TLSCALL'
|
|
tls_first_major=2
|
|
tls_first_minor=19
|
|
;;
|
|
changequote([,])dnl
|
|
esac
|
|
set_have_as_tls=no
|
|
if test "x$enable_tls" = xno ; then
|
|
: # TLS explicitly disabled.
|
|
elif test "x$enable_tls" = xyes ; then
|
|
set_have_as_tls=yes # TLS explicitly enabled.
|
|
elif test -z "$tls_first_major"; then
|
|
: # If we don't have a check, assume no support.
|
|
else
|
|
gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
|
|
[$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
|
|
[set_have_as_tls=yes])
|
|
fi
|
|
if test $set_have_as_tls = yes ; then
|
|
AC_DEFINE(HAVE_AS_TLS, 1,
|
|
[Define if your assembler supports thread-local storage.])
|
|
fi
|
|
|
|
# Target-specific assembler checks.
|
|
|
|
AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
|
|
gcc_cv_ld_static_dynamic=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then
|
|
gcc_cv_ld_static_dynamic=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
# Check if linker supports -Bstatic/-Bdynamic option
|
|
if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
|
|
&& $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
|
|
gcc_cv_ld_static_dynamic=yes
|
|
fi
|
|
fi
|
|
if test x"$gcc_cv_ld_static_dynamic" = xyes; then
|
|
AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
|
|
[Define if your linker supports -Bstatic/-Bdynamic option.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
|
|
|
|
if test x"$demangler_in_ld" = xyes; then
|
|
AC_MSG_CHECKING(linker --demangle support)
|
|
gcc_cv_ld_demangle=no
|
|
if test $in_tree_ld = yes; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
|
|
gcc_cv_ld_demangle=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
|
|
# Check if the GNU linker supports --demangle option
|
|
if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
|
|
gcc_cv_ld_demangle=yes
|
|
fi
|
|
fi
|
|
if test x"$gcc_cv_ld_demangle" = xyes; then
|
|
AC_DEFINE(HAVE_LD_DEMANGLE, 1,
|
|
[Define if your linker supports --demangle option.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_demangle)
|
|
fi
|
|
|
|
case "$target" in
|
|
# All TARGET_ABI_OSF targets.
|
|
alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
|
|
gcc_GAS_CHECK_FEATURE([explicit relocation support],
|
|
gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
|
|
[ .set nomacro
|
|
.text
|
|
extbl $3, $2, $3 !lituse_bytoff!1
|
|
ldq $2, a($29) !literal!1
|
|
ldq $4, b($29) !literal!2
|
|
ldq_u $3, 0($2) !lituse_base!1
|
|
ldq $27, f($29) !literal!5
|
|
jsr $26, ($27), f !lituse_jsr!5
|
|
ldah $29, 0($26) !gpdisp!3
|
|
lda $0, c($29) !gprel
|
|
ldah $1, d($29) !gprelhigh
|
|
lda $1, d($1) !gprellow
|
|
lda $29, 0($29) !gpdisp!3],,
|
|
[AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
|
|
[Define if your assembler supports explicit relocations.])])
|
|
gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
|
|
gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
|
|
[ .set nomacro
|
|
.text
|
|
ldq $27, a($29) !literal!1
|
|
jsr $26, ($27), a !lituse_jsrdirect!1],,
|
|
[AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
|
|
[Define if your assembler supports the lituse_jsrdirect relocation.])])
|
|
;;
|
|
|
|
cris-*-*)
|
|
gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
|
|
gcc_cv_as_cris_no_mul_bug,[2,15,91],
|
|
[-no-mul-bug-abort], [.text],,
|
|
[AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
|
|
[Define if your assembler supports the -no-mul-bug-abort option.])])
|
|
;;
|
|
|
|
sparc*-*-*)
|
|
gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
|
|
[.register %g2, #scratch],,
|
|
[AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
|
|
[Define if your assembler supports .register.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
|
|
[-relax], [.text],,
|
|
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
|
|
[Define if your assembler supports -relax option.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
|
|
gcc_cv_as_sparc_ua_pcrel,,
|
|
[-K PIC],
|
|
[.text
|
|
foo:
|
|
nop
|
|
.data
|
|
.align 4
|
|
.byte 0
|
|
.uaword %r_disp32(foo)],
|
|
[if test x$gcc_cv_ld != x \
|
|
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
|
|
gcc_cv_as_sparc_ua_pcrel=yes
|
|
fi
|
|
rm -f conftest],
|
|
[AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
|
|
[Define if your assembler and linker support unaligned PC relative relocs.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
|
|
gcc_cv_as_sparc_ua_pcrel_hidden,,
|
|
[-K PIC],
|
|
[.data
|
|
.align 4
|
|
.byte 0x31
|
|
.uaword %r_disp32(foo)
|
|
.byte 0x32, 0x33, 0x34
|
|
.global foo
|
|
.hidden foo
|
|
foo:
|
|
.skip 4],
|
|
[if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
|
|
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
|
|
&& $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
|
|
| grep ' 31000000 07323334' > /dev/null 2>&1; then
|
|
if $gcc_cv_objdump -R conftest 2> /dev/null \
|
|
| grep 'DISP32' > /dev/null 2>&1; then
|
|
:
|
|
else
|
|
gcc_cv_as_sparc_ua_pcrel_hidden=yes
|
|
fi
|
|
fi
|
|
rm -f conftest],
|
|
[AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
|
|
[Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
|
|
]) # unaligned pcrel relocs
|
|
|
|
gcc_GAS_CHECK_FEATURE([offsetable %lo()],
|
|
gcc_cv_as_sparc_offsetable_lo10,,
|
|
[-xarch=v9],
|
|
[.text
|
|
or %g1, %lo(ab) + 12, %g1
|
|
or %g1, %lo(ab + 12), %g1],
|
|
[if test x$gcc_cv_objdump != x \
|
|
&& $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
|
|
| grep ' 82106000 82106000' > /dev/null 2>&1; then
|
|
gcc_cv_as_sparc_offsetable_lo10=yes
|
|
fi],
|
|
[AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
|
|
[Define if your assembler supports offsetable %lo().])])
|
|
;;
|
|
|
|
changequote(,)dnl
|
|
i[34567]86-*-* | x86_64-*-*)
|
|
changequote([,])dnl
|
|
case $target_os in
|
|
cygwin* | pe | mingw32*)
|
|
# Recent binutils allows the three-operand form of ".comm" on PE. This
|
|
# definition is used unconditionally to initialise the default state of
|
|
# the target option variable that governs usage of the feature.
|
|
gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align,
|
|
[2,19,52],,[.comm foo,1,32])
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM,
|
|
[`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`],
|
|
[Define if your assembler supports specifying the alignment
|
|
of objects allocated using the GAS .comm command.])
|
|
# Used for DWARF 2 in PE
|
|
gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
|
|
gcc_cv_as_ix86_pe_secrel32,
|
|
[2,15,91],,
|
|
[.text
|
|
foo: nop
|
|
.data
|
|
.secrel32 foo],
|
|
[if test x$gcc_cv_ld != x \
|
|
&& $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
|
|
gcc_cv_as_ix86_pe_secrel32=yes
|
|
fi
|
|
rm -f conftest],
|
|
[AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
|
|
[Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
|
|
;;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
|
|
gcc_cv_as_ix86_filds,,,
|
|
[filds mem; fists mem],,
|
|
[AC_DEFINE(HAVE_AS_IX86_FILDS, 1,
|
|
[Define if your assembler uses filds and fists mnemonics.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics],
|
|
gcc_cv_as_ix86_fildq,,,
|
|
[fildq mem; fistpq mem],,
|
|
[AC_DEFINE(HAVE_AS_IX86_FILDQ, 1,
|
|
[Define if your assembler uses fildq and fistq mnemonics.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([cmov syntax],
|
|
gcc_cv_as_ix86_cmov_sun_syntax,,,
|
|
[cmovl.l %edx, %eax],,
|
|
[AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
|
|
[Define if your assembler supports the Sun syntax for cmov.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([ffreep mnemonic],
|
|
gcc_cv_as_ix86_ffreep,,,
|
|
[ffreep %st(1)],,
|
|
[AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
|
|
[Define if your assembler supports the ffreep mnemonic.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([sahf mnemonic],
|
|
gcc_cv_as_ix86_sahf,,,
|
|
[sahf],,
|
|
[AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
|
|
[Define if your assembler supports the sahf mnemonic.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([different section symbol subtraction],
|
|
gcc_cv_as_ix86_diff_sect_delta,,,
|
|
[.section .rodata
|
|
.L1:
|
|
.long .L2-.L1
|
|
.long .L3-.L1
|
|
.text
|
|
.L3: nop
|
|
.L2: nop],,
|
|
[AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
|
|
[Define if your assembler supports the subtraction of symbols in different sections.])])
|
|
|
|
# This one is used unconditionally by i386.[ch]; it is to be defined
|
|
# to 1 if the feature is present, 0 otherwise.
|
|
gcc_GAS_CHECK_FEATURE([GOTOFF in data],
|
|
gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
|
|
[ .text
|
|
.L0:
|
|
nop
|
|
.data
|
|
.long .L0@GOTOFF])
|
|
AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
|
|
[`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
|
|
[Define true if the assembler supports '.long foo@GOTOFF'.])
|
|
;;
|
|
|
|
ia64*-*-*)
|
|
gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
|
|
gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
|
|
[ .text
|
|
addl r15 = @ltoffx(x#), gp
|
|
;;
|
|
ld8.mov r16 = [[r15]], x#],,
|
|
[AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
|
|
[Define if your assembler supports ltoffx and ldxmov relocations.])])
|
|
|
|
;;
|
|
|
|
powerpc*-*-*)
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr5"
|
|
.csect .text[[PR]]
|
|
mfcr 3,128';;
|
|
*-*-darwin*)
|
|
gcc_GAS_CHECK_FEATURE([.machine directive support],
|
|
gcc_cv_as_machine_directive,,,
|
|
[ .machine ppc7400])
|
|
if test x$gcc_cv_as_machine_directive != xyes; then
|
|
echo "*** This target requires an assembler supporting \".machine\"" >&2
|
|
echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
|
|
test x$build = x$target && exit 1
|
|
fi
|
|
conftest_s=' .text
|
|
mfcr r3,128';;
|
|
*) conftest_s=' .machine power4
|
|
.text
|
|
mfcr 3,128';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([mfcr field support],
|
|
gcc_cv_as_powerpc_mfcrf, [2,14,0],,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_MFCRF, 1,
|
|
[Define if your assembler supports mfcr field.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr5"
|
|
.csect .text[[PR]]
|
|
popcntb 3,3';;
|
|
*) conftest_s=' .machine power5
|
|
.text
|
|
popcntb 3,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([popcntb support],
|
|
gcc_cv_as_powerpc_popcntb, [2,17,0],,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_POPCNTB, 1,
|
|
[Define if your assembler supports popcntb field.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr5x"
|
|
.csect .text[[PR]]
|
|
frin 1,1';;
|
|
*) conftest_s=' .machine power5
|
|
.text
|
|
frin 1,1';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([fp round support],
|
|
gcc_cv_as_powerpc_fprnd, [2,17,0],,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_FPRND, 1,
|
|
[Define if your assembler supports fprnd.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr6"
|
|
.csect .text[[PR]]
|
|
mffgpr 1,3';;
|
|
*) conftest_s=' .machine power6
|
|
.text
|
|
mffgpr 1,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([move fp gpr support],
|
|
gcc_cv_as_powerpc_mfpgpr, [2,19,2],,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_MFPGPR, 1,
|
|
[Define if your assembler supports mffgpr and mftgpr.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .csect .text[[PR]]
|
|
LCF..0:
|
|
addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
|
|
*-*-darwin*)
|
|
conftest_s=' .text
|
|
LCF0:
|
|
addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
|
|
*) conftest_s=' .text
|
|
.LCF0:
|
|
addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([rel16 relocs],
|
|
gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_REL16, 1,
|
|
[Define if your assembler supports R_PPC_REL16 relocs.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr6"
|
|
.csect .text[[PR]]
|
|
cmpb 3,4,5';;
|
|
*) conftest_s=' .machine power6
|
|
.text
|
|
cmpb 3,4,5';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([compare bytes support],
|
|
gcc_cv_as_powerpc_cmpb, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_CMPB, 1,
|
|
[Define if your assembler supports cmpb.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr6"
|
|
.csect .text[[PR]]
|
|
dadd 1,2,3';;
|
|
*) conftest_s=' .machine power6
|
|
.text
|
|
dadd 1,2,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([decimal float support],
|
|
gcc_cv_as_powerpc_dfp, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_DFP, 1,
|
|
[Define if your assembler supports DFP instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr7"
|
|
.csect .text[[PR]]
|
|
lxvd2x 1,2,3';;
|
|
*) conftest_s=' .machine power7
|
|
.text
|
|
lxvd2x 1,2,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([vector-scalar support],
|
|
gcc_cv_as_powerpc_vsx, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_VSX, 1,
|
|
[Define if your assembler supports VSX instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr7"
|
|
.csect .text[[PR]]
|
|
popcntd 3,3';;
|
|
*) conftest_s=' .machine power7
|
|
.text
|
|
popcntd 3,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([popcntd support],
|
|
gcc_cv_as_powerpc_popcntd, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_POPCNTD, 1,
|
|
[Define if your assembler supports POPCNTD instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .csect .text[[PR]]
|
|
lwsync';;
|
|
*) conftest_s=' .text
|
|
lwsync';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([lwsync support],
|
|
gcc_cv_as_powerpc_lwsync, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_LWSYNC, 1,
|
|
[Define if your assembler supports LWSYNC instructions.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
|
|
gcc_cv_as_powerpc_gnu_attribute, [2,18,0],,
|
|
[.gnu_attribute 4,1],,
|
|
[AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
|
|
[Define if your assembler supports .gnu_attribute.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([tls marker support],
|
|
gcc_cv_as_powerpc_tls_markers, [2,20,0],,
|
|
[ bl __tls_get_addr(x@tlsgd)],,
|
|
[AC_DEFINE(HAVE_AS_TLS_MARKERS, 1,
|
|
[Define if your assembler supports arg info for __tls_get_addr.])])
|
|
;;
|
|
|
|
mips*-*-*)
|
|
gcc_GAS_CHECK_FEATURE([explicit relocation support],
|
|
gcc_cv_as_mips_explicit_relocs, [2,14,0],,
|
|
[ lw $4,%gp_rel(foo)($4)],,
|
|
[if test x$target_cpu_default = x
|
|
then target_cpu_default=MASK_EXPLICIT_RELOCS
|
|
else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
|
|
fi])
|
|
gcc_GAS_CHECK_FEATURE([-mno-shared support],
|
|
gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
|
|
[AC_DEFINE(HAVE_AS_NO_SHARED, 1,
|
|
[Define if the assembler understands -mno-shared.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
|
|
gcc_cv_as_mips_gnu_attribute, [2,18,0],,
|
|
[.gnu_attribute 4,1],,
|
|
[AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
|
|
[Define if your assembler supports .gnu_attribute.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.dtprelword support],
|
|
gcc_cv_as_mips_dtprelword, [2,18,0],,
|
|
[.section .tdata,"awT",@progbits
|
|
x:
|
|
.word 2
|
|
.text
|
|
.dtprelword x+0x8000],,
|
|
[AC_DEFINE(HAVE_AS_DTPRELWORD, 1,
|
|
[Define if your assembler supports .dtprelword.])])
|
|
;;
|
|
esac
|
|
|
|
# Mips and HP-UX need the GNU assembler.
|
|
# Linux on IA64 might be able to use the Intel assembler.
|
|
|
|
case "$target" in
|
|
mips*-*-* | *-*-hpux* )
|
|
if test x$gas_flag = xyes \
|
|
|| test x"$host" != x"$build" \
|
|
|| test ! -x "$gcc_cv_as" \
|
|
|| "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
|
|
:
|
|
else
|
|
echo "*** This configuration requires the GNU assembler" >&2
|
|
exit 1
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# ??? Not all targets support dwarf2 debug_line, even within a version
|
|
# of gas. Moreover, we need to emit a valid instruction to trigger any
|
|
# info to the output file. So, as supported targets are added to gas 2.11,
|
|
# add some instruction here to (also) show we expect this might work.
|
|
# ??? Once 2.11 is released, probably need to add first known working
|
|
# version to the per-target configury.
|
|
case "$target" in
|
|
i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
|
|
| x86_64*-*-* | hppa*-*-* | arm*-*-* \
|
|
| xstormy16*-*-* | cris-*-* | crisv32-*-* | xtensa*-*-* | bfin-*-* | score*-*-* \
|
|
| spu-*-* | fido*-*-* | m32c-*-*)
|
|
insn="nop"
|
|
;;
|
|
ia64*-*-* | s390*-*-*)
|
|
insn="nop 0"
|
|
;;
|
|
mmix-*-*)
|
|
insn="swym 0"
|
|
;;
|
|
esac
|
|
if test x"$insn" != x; then
|
|
conftest_s="\
|
|
.file 1 \"conftest.s\"
|
|
.loc 1 3 0
|
|
$insn"
|
|
gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
|
|
gcc_cv_as_dwarf2_debug_line,
|
|
[elf,2,11,0],, [$conftest_s],
|
|
[if test x$gcc_cv_objdump != x \
|
|
&& $gcc_cv_objdump -h conftest.o 2> /dev/null \
|
|
| grep debug_line > /dev/null 2>&1; then
|
|
gcc_cv_as_dwarf2_debug_line=yes
|
|
fi])
|
|
|
|
# The .debug_line file table must be in the exact order that
|
|
# we specified the files, since these indices are also used
|
|
# by DW_AT_decl_file. Approximate this test by testing if
|
|
# the assembler bitches if the same index is assigned twice.
|
|
gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
|
|
gcc_cv_as_dwarf2_file_buggy,,,
|
|
[ .file 1 "foo.s"
|
|
.file 1 "bar.s"])
|
|
|
|
if test $gcc_cv_as_dwarf2_debug_line = yes \
|
|
&& test $gcc_cv_as_dwarf2_file_buggy = no; then
|
|
AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
|
|
[Define if your assembler supports dwarf2 .file/.loc directives,
|
|
and preserves file table indices exactly as given.])
|
|
fi
|
|
|
|
gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
|
|
gcc_cv_as_gdwarf2_flag,
|
|
[elf,2,11,0], [--gdwarf2], [$insn],,
|
|
[AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
|
|
[Define if your assembler supports the --gdwarf2 option.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([--gstabs option],
|
|
gcc_cv_as_gstabs_flag,
|
|
[elf,2,11,0], [--gstabs], [$insn],
|
|
[# The native Solaris 9/Intel assembler doesn't understand --gstabs
|
|
# and warns about it, but still exits successfully. So check for
|
|
# this.
|
|
if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
|
|
then :
|
|
else gcc_cv_as_gstabs_flag=yes
|
|
fi],
|
|
[AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
|
|
[Define if your assembler supports the --gstabs option.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([--debug-prefix-map option],
|
|
gcc_cv_as_debug_prefix_map_flag,
|
|
[2,18,0], [--debug-prefix-map /a=/b], [$insn],,
|
|
[AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1,
|
|
[Define if your assembler supports the --debug-prefix-map option.])])
|
|
fi
|
|
|
|
gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment,
|
|
,,
|
|
[.lcomm bar,4,16],,
|
|
[AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1,
|
|
[Define if your assembler supports .lcomm with an alignment field.])])
|
|
|
|
AC_CACHE_CHECK([assembler for tolerance to line number 0],
|
|
[gcc_cv_as_line_zero],
|
|
[gcc_cv_as_line_zero=no
|
|
if test $in_tree_gas = yes; then
|
|
gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes])
|
|
elif test "x$gcc_cv_as" != x; then
|
|
{ echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s
|
|
if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) &&
|
|
test "x`cat conftest.out`" = x
|
|
then
|
|
gcc_cv_as_line_zero=yes
|
|
else
|
|
echo "configure: failed program was" >&AS_MESSAGE_LOG_FD
|
|
cat conftest.s >&AS_MESSAGE_LOG_FD
|
|
echo "configure: error output was" >&AS_MESSAGE_LOG_FD
|
|
cat conftest.out >&AS_MESSAGE_LOG_FD
|
|
fi
|
|
rm -f conftest.o conftest.s conftest.out
|
|
fi])
|
|
if test "x$gcc_cv_as_line_zero" = xyes; then
|
|
AC_DEFINE([HAVE_AS_LINE_ZERO], 1,
|
|
[Define if the assembler won't complain about a line such as # 0 "" 2.])
|
|
fi
|
|
|
|
AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
|
|
gcc_cv_ld_eh_frame_hdr=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_eh_frame_hdr=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
# Check if linker supports --eh-frame-hdr option
|
|
if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
|
|
gcc_cv_ld_eh_frame_hdr=yes
|
|
fi
|
|
fi
|
|
GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
|
|
if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
|
|
AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
|
|
[Define if your linker supports --eh-frame-hdr option.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
|
|
|
|
AC_MSG_CHECKING(linker position independent executable support)
|
|
gcc_cv_ld_pie=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_pie=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
# Check if linker supports -pie option
|
|
if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
|
|
gcc_cv_ld_pie=yes
|
|
fi
|
|
fi
|
|
if test x"$gcc_cv_ld_pie" = xyes; then
|
|
AC_DEFINE(HAVE_LD_PIE, 1,
|
|
[Define if your linker supports -pie option.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_pie)
|
|
|
|
AC_MSG_CHECKING(linker EH-compatible garbage collection of sections)
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_eh_gc_sections=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
|
|
cat > conftest.s <<EOF
|
|
.section .text
|
|
.globl _start
|
|
.type _start, @function
|
|
_start:
|
|
.long foo
|
|
.size _start, .-_start
|
|
.section .text.foo,"ax",@progbits
|
|
.type foo, @function
|
|
foo:
|
|
.long 0
|
|
.size foo, .-foo
|
|
.section .gcc_except_table.foo,"a",@progbits
|
|
.L0:
|
|
.long 0
|
|
.section .eh_frame,"a",@progbits
|
|
.long .L0
|
|
EOF
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
|
|
| grep "gc-sections option ignored" > /dev/null; then
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
|
|
gcc_cv_ld_eh_gc_sections=yes
|
|
# If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
|
|
if test x$gcc_cv_as_comdat_group != xyes; then
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
cat > conftest.s <<EOF
|
|
.section .text
|
|
.globl _start
|
|
.type _start, @function
|
|
_start:
|
|
.long foo
|
|
.size _start, .-_start
|
|
.section .gnu.linkonce.t.foo,"ax",@progbits
|
|
.type foo, @function
|
|
foo:
|
|
.long 0
|
|
.size foo, .-foo
|
|
.section .gcc_except_table.foo,"a",@progbits
|
|
.L0:
|
|
.long 0
|
|
.section .eh_frame,"a",@progbits
|
|
.long .L0
|
|
EOF
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
|
|
| grep "gc-sections option ignored" > /dev/null; then
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
|
|
gcc_cv_ld_eh_gc_sections=yes
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest.s conftest.o conftest
|
|
fi
|
|
case "$target" in
|
|
hppa*-*-linux*)
|
|
# ??? This apparently exposes a binutils bug with PC-relative relocations.
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
;;
|
|
esac
|
|
if test x$gcc_cv_ld_eh_gc_sections = xyes; then
|
|
AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1,
|
|
[Define if your linker supports garbage collection of
|
|
sections in presence of EH frames.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections)
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
AC_CACHE_CHECK(linker --as-needed support,
|
|
gcc_cv_ld_as_needed,
|
|
[gcc_cv_ld_as_needed=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_as_needed=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
# Check if linker supports --as-needed and --no-as-needed options
|
|
if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
|
|
gcc_cv_ld_as_needed=yes
|
|
fi
|
|
fi
|
|
])
|
|
if test x"$gcc_cv_ld_as_needed" = xyes; then
|
|
AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
|
|
[Define if your linker supports --as-needed and --no-as-needed options.])
|
|
fi
|
|
|
|
case "$target:$tm_file" in
|
|
powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
|
|
AC_CACHE_CHECK(linker support for omitting dot symbols,
|
|
gcc_cv_ld_no_dot_syms,
|
|
[gcc_cv_ld_no_dot_syms=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
|
|
gcc_cv_ld_no_dot_syms=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
|
|
cat > conftest1.s <<EOF
|
|
.text
|
|
bl .foo
|
|
EOF
|
|
cat > conftest2.s <<EOF
|
|
.section ".opd","aw"
|
|
.align 3
|
|
.globl foo
|
|
.type foo,@function
|
|
foo:
|
|
.quad .LEfoo,.TOC.@tocbase,0
|
|
.text
|
|
.LEfoo:
|
|
blr
|
|
.size foo,.-.LEfoo
|
|
EOF
|
|
if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
|
|
gcc_cv_ld_no_dot_syms=yes
|
|
fi
|
|
rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
|
|
fi
|
|
])
|
|
if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
|
|
AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
|
|
[Define if your PowerPC64 linker only needs function descriptor syms.])
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
AC_CACHE_CHECK(linker --build-id support,
|
|
gcc_cv_ld_buildid,
|
|
[gcc_cv_ld_buildid=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a \
|
|
"$gcc_cv_gld_minor_version" -ge 18 -o \
|
|
"$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_buildid=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
if $gcc_cv_ld --help 2>/dev/null | grep build-id > /dev/null; then
|
|
gcc_cv_ld_buildid=yes
|
|
fi
|
|
fi])
|
|
if test x"$gcc_cv_ld_buildid" = xyes; then
|
|
AC_DEFINE(HAVE_LD_BUILDID, 1,
|
|
[Define if your linker supports --build-id.])
|
|
fi
|
|
|
|
AC_ARG_ENABLE(linker-build-id,
|
|
[ --enable-linker-build-id
|
|
compiler will always pass --build-id to linker],
|
|
[],
|
|
enable_linker_build_id=no)
|
|
|
|
if test x"$enable_linker_build_id" = xyes; then
|
|
if test x"$gcc_cv_ld_buildid" = xyes; then
|
|
AC_DEFINE(ENABLE_LD_BUILDID, 1,
|
|
[Define if gcc should always pass --build-id to linker.])
|
|
else
|
|
AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored)
|
|
fi
|
|
fi
|
|
|
|
AC_CACHE_CHECK(linker --sysroot support,
|
|
gcc_cv_ld_sysroot,
|
|
[gcc_cv_ld_sysroot=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
|
|
gcc_cv_ld_sysroot=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
|
|
gcc_cv_ld_sysroot=yes
|
|
fi
|
|
fi])
|
|
if test x"$gcc_cv_ld_sysroot" = xyes; then
|
|
AC_DEFINE(HAVE_LD_SYSROOT, 1,
|
|
[Define if your linker supports --sysroot.])
|
|
fi
|
|
|
|
if test x$with_sysroot = x && test x$host = x$target \
|
|
&& test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \
|
|
&& test "$prefix" != "NONE"; then
|
|
AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
|
|
[Define to PREFIX/include if cpp should also search that directory.])
|
|
fi
|
|
|
|
# Test for stack protector support in target C library.
|
|
AC_CACHE_CHECK(__stack_chk_fail in target C library,
|
|
gcc_cv_libc_provides_ssp,
|
|
[gcc_cv_libc_provides_ssp=no
|
|
case "$target" in
|
|
*-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
|
|
if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
|
|
if test "x$with_sysroot" = x; then
|
|
glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
|
|
elif test "x$with_build_sysroot" != "x"; then
|
|
glibc_header_dir="${with_build_sysroot}/usr/include"
|
|
elif test "x$with_sysroot" = xyes; then
|
|
glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
|
|
else
|
|
glibc_header_dir="${with_sysroot}/usr/include"
|
|
fi
|
|
else
|
|
glibc_header_dir=/usr/include
|
|
fi
|
|
# glibc 2.4 and later provides __stack_chk_fail and
|
|
# either __stack_chk_guard, or TLS access to stack guard canary.
|
|
if test -f $glibc_header_dir/features.h \
|
|
&& $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
|
|
$glibc_header_dir/features.h > /dev/null; then
|
|
if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
|
|
$glibc_header_dir/features.h > /dev/null; then
|
|
gcc_cv_libc_provides_ssp=yes
|
|
elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
|
|
$glibc_header_dir/features.h > /dev/null \
|
|
&& $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
|
|
$glibc_header_dir/features.h > /dev/null; then
|
|
gcc_cv_libc_provides_ssp=yes
|
|
elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
|
|
$glibc_header_dir/features.h > /dev/null && \
|
|
test -f $glibc_header_dir/bits/uClibc_config.h && \
|
|
$EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
|
|
$glibc_header_dir/bits/uClibc_config.h > /dev/null; then
|
|
gcc_cv_libc_provides_ssp=yes
|
|
fi
|
|
fi
|
|
;;
|
|
*-*-gnu*)
|
|
# Avoid complicated tests (see
|
|
# <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
|
|
# simply assert that glibc does provide this, which is true for all
|
|
# realistically usable GNU/Hurd configurations.
|
|
gcc_cv_libc_provides_ssp=yes;;
|
|
*-*-darwin*)
|
|
AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
|
|
[echo "no __stack_chk_fail on this target"])
|
|
;;
|
|
*) gcc_cv_libc_provides_ssp=no ;;
|
|
esac])
|
|
|
|
if test x$gcc_cv_libc_provides_ssp = xyes; then
|
|
AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
|
|
[Define if your target C library provides stack protector support])
|
|
fi
|
|
|
|
# Check if TFmode long double should be used by default or not.
|
|
# Some glibc targets used DFmode long double, but with glibc 2.4
|
|
# and later they can use TFmode.
|
|
case "$target" in
|
|
powerpc*-*-linux* | \
|
|
powerpc*-*-gnu* | \
|
|
sparc*-*-linux* | \
|
|
s390*-*-linux* | \
|
|
alpha*-*-linux*)
|
|
AC_ARG_WITH(long-double-128,
|
|
[ --with-long-double-128 Use 128-bit long double by default.],
|
|
gcc_cv_target_ldbl128="$with_long_double_128",
|
|
[gcc_cv_target_ldbl128=no
|
|
if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
|
|
if test "x$with_sysroot" = x; then
|
|
glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
|
|
elif test "x$with_build_sysroot" != "x"; then
|
|
glibc_header_dir="${with_build_sysroot}/usr/include"
|
|
elif test "x$with_sysroot" = xyes; then
|
|
glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
|
|
else
|
|
glibc_header_dir="${with_sysroot}/usr/include"
|
|
fi
|
|
else
|
|
glibc_header_dir=/usr/include
|
|
fi
|
|
changequote(,)dnl
|
|
grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
|
|
$glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
|
|
&& gcc_cv_target_ldbl128=yes
|
|
changequote([,])dnl
|
|
])
|
|
;;
|
|
esac
|
|
if test x$gcc_cv_target_ldbl128 = xyes; then
|
|
AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
|
|
[Define if TFmode long double should be the default])
|
|
fi
|
|
|
|
# Find out what GC implementation we want, or may, use.
|
|
AC_ARG_WITH(gc,
|
|
[ --with-gc={page,zone} choose the garbage collection mechanism to use
|
|
with the compiler],
|
|
[case "$withval" in
|
|
page)
|
|
GGC=ggc-$withval
|
|
;;
|
|
zone)
|
|
GGC=ggc-$withval
|
|
AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR([$withval is an invalid option to --with-gc])
|
|
;;
|
|
esac],
|
|
[GGC=ggc-page])
|
|
AC_SUBST(GGC)
|
|
echo "Using $GGC for garbage collection."
|
|
|
|
# Libraries to use on the host. This will normally be set by the top
|
|
# level Makefile. Here we simply capture the value for our Makefile.
|
|
if test -z "${HOST_LIBS+set}"; then
|
|
HOST_LIBS=
|
|
fi
|
|
AC_SUBST(HOST_LIBS)
|
|
|
|
# Use the system's zlib library.
|
|
zlibdir=-L../zlib
|
|
zlibinc="-I\$(srcdir)/../zlib"
|
|
AC_ARG_WITH(system-zlib,
|
|
[ --with-system-zlib use installed libz],
|
|
zlibdir=
|
|
zlibinc=
|
|
)
|
|
AC_SUBST(zlibdir)
|
|
AC_SUBST(zlibinc)
|
|
|
|
dnl Very limited version of automake's enable-maintainer-mode
|
|
|
|
AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
|
|
dnl maintainer-mode is disabled by default
|
|
AC_ARG_ENABLE(maintainer-mode,
|
|
[ --enable-maintainer-mode
|
|
enable make rules and dependencies not useful
|
|
(and sometimes confusing) to the casual installer],
|
|
maintainer_mode=$enableval,
|
|
maintainer_mode=no)
|
|
|
|
AC_MSG_RESULT($maintainer_mode)
|
|
|
|
if test "$maintainer_mode" = "yes"; then
|
|
MAINT=''
|
|
else
|
|
MAINT='#'
|
|
fi
|
|
AC_SUBST(MAINT)dnl
|
|
|
|
# --------------
|
|
# Language hooks
|
|
# --------------
|
|
|
|
# Make empty files to contain the specs and options for each language.
|
|
# Then add #include lines to for a compiler that has specs and/or options.
|
|
|
|
subdirs=
|
|
lang_opt_files=
|
|
lang_specs_files=
|
|
lang_tree_files=
|
|
# These (without "all_") are set in each config-lang.in.
|
|
# `language' must be a single word so is spelled singularly.
|
|
all_languages=
|
|
all_compilers=
|
|
all_outputs='Makefile gccbug'
|
|
# List of language makefile fragments.
|
|
all_lang_makefrags=
|
|
# List of language subdirectory makefiles. Deprecated.
|
|
all_lang_makefiles=
|
|
# Additional files for gengtype
|
|
all_gtfiles="$target_gtfiles"
|
|
|
|
# These are the languages that are set in --enable-languages,
|
|
# and are available in the GCC tree.
|
|
all_selected_languages=
|
|
|
|
# Add the language fragments.
|
|
# Languages are added via two mechanisms. Some information must be
|
|
# recorded in makefile variables, these are defined in config-lang.in.
|
|
# We accumulate them and plug them into the main Makefile.
|
|
# The other mechanism is a set of hooks for each of the main targets
|
|
# like `clean', `install', etc.
|
|
|
|
language_hooks="Make-hooks"
|
|
|
|
for lang in ${srcdir}/*/config-lang.in
|
|
do
|
|
changequote(,)dnl
|
|
test "$lang" = "${srcdir}/*/config-lang.in" && continue
|
|
|
|
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
|
|
if test "x$lang_alias" = x
|
|
then
|
|
echo "$lang doesn't set \$language." 1>&2
|
|
exit 1
|
|
fi
|
|
subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
|
|
subdirs="$subdirs $subdir"
|
|
|
|
# $gcc_subdir is where the gcc integration files are to be found
|
|
# for a language, both for internal compiler purposes (compiler
|
|
# sources implementing front-end to GCC tree converters), and for
|
|
# build infrastructure purposes (Make-lang.in, etc.)
|
|
#
|
|
# This will be <subdir> (relative to $srcdir) if a line like
|
|
# gcc_subdir="<subdir>" or gcc_subdir=<subdir>
|
|
# is found in <langdir>/config-lang.in, and will remain <langdir>
|
|
# otherwise.
|
|
#
|
|
# Except for the language alias (fetched above), the regular
|
|
# "config-lang.in" contents are always retrieved from $gcc_subdir,
|
|
# so a <langdir>/config-lang.in setting gcc_subdir typically sets
|
|
# only this and the language alias.
|
|
|
|
gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang`
|
|
if [ "$gcc_subdir" = "" ]; then
|
|
gcc_subdir="$subdir"
|
|
fi
|
|
|
|
case ",$enable_languages," in
|
|
*,$lang_alias,*)
|
|
all_selected_languages="$all_selected_languages $lang_alias"
|
|
if test -f $srcdir/$gcc_subdir/lang-specs.h; then
|
|
lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h"
|
|
fi
|
|
;;
|
|
esac
|
|
changequote([,])dnl
|
|
|
|
language=
|
|
boot_language=
|
|
compilers=
|
|
outputs=
|
|
gtfiles=
|
|
subdir_requires=
|
|
. ${srcdir}/$gcc_subdir/config-lang.in
|
|
if test "x$language" = x
|
|
then
|
|
echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2
|
|
exit 1
|
|
fi
|
|
|
|
ok=:
|
|
case ",$enable_languages," in
|
|
*,$lang_alias,*) ;;
|
|
*)
|
|
for i in $subdir_requires; do
|
|
test -f "${srcdir}/$i/config-lang.in" && continue
|
|
ok=false
|
|
break
|
|
done
|
|
;;
|
|
esac
|
|
$ok || continue
|
|
|
|
all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
|
|
if test -f $srcdir/$gcc_subdir/lang.opt; then
|
|
lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt"
|
|
fi
|
|
if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then
|
|
lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def"
|
|
fi
|
|
if test -f ${srcdir}/$gcc_subdir/Makefile.in
|
|
then all_lang_makefiles="$gcc_subdir/Makefile"
|
|
fi
|
|
all_languages="$all_languages $language"
|
|
all_compilers="$all_compilers $compilers"
|
|
all_outputs="$all_outputs $outputs"
|
|
all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles"
|
|
done
|
|
|
|
# Pick up gtfiles for c
|
|
gtfiles=
|
|
. ${srcdir}/c-config-lang.in
|
|
all_gtfiles="$all_gtfiles [[c]] $gtfiles"
|
|
|
|
check_languages=
|
|
for language in $all_selected_languages
|
|
do
|
|
check_languages="$check_languages check-$language"
|
|
done
|
|
|
|
# We link each language in with a set of hooks, reached indirectly via
|
|
# lang.${target}. Only do so for selected languages.
|
|
|
|
rm -f Make-hooks
|
|
touch Make-hooks
|
|
target_list="all.cross start.encap rest.encap tags \
|
|
install-common install-man install-info install-pdf dvi pdf \
|
|
html uninstall info man srcextra srcman srcinfo \
|
|
mostlyclean clean distclean maintainer-clean"
|
|
|
|
for t in $target_list
|
|
do
|
|
x=
|
|
for lang in $all_selected_languages
|
|
do
|
|
x="$x $lang.$t"
|
|
done
|
|
echo "lang.$t: $x" >> Make-hooks
|
|
done
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
# Create .gdbinit.
|
|
|
|
echo "dir ." > .gdbinit
|
|
echo "dir ${srcdir}" >> .gdbinit
|
|
if test x$gdb_needs_out_file_path = xyes
|
|
then
|
|
echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
|
|
fi
|
|
if test "x$subdirs" != x; then
|
|
for s in $subdirs
|
|
do
|
|
echo "dir ${srcdir}/$s" >> .gdbinit
|
|
done
|
|
fi
|
|
echo "source ${srcdir}/gdbinit.in" >> .gdbinit
|
|
|
|
gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)'
|
|
AC_SUBST(gcc_tooldir)
|
|
AC_SUBST(dollar)
|
|
|
|
# Find a directory in which to install a shared libgcc.
|
|
|
|
AC_ARG_ENABLE(version-specific-runtime-libs,
|
|
[ --enable-version-specific-runtime-libs
|
|
specify that runtime libraries should be
|
|
installed in a compiler-specific directory])
|
|
|
|
AC_ARG_WITH(slibdir,
|
|
[ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]],
|
|
slibdir="$with_slibdir",
|
|
if test "${enable_version_specific_runtime_libs+set}" = set; then
|
|
slibdir='$(libsubdir)'
|
|
elif test "$host" != "$target"; then
|
|
slibdir='$(build_tooldir)/lib'
|
|
else
|
|
slibdir='$(libdir)'
|
|
fi)
|
|
AC_SUBST(slibdir)
|
|
|
|
AC_ARG_WITH(datarootdir,
|
|
[ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
|
|
datarootdir="\${prefix}/$with_datarootdir",
|
|
datarootdir='$(prefix)/share')
|
|
AC_SUBST(datarootdir)
|
|
|
|
AC_ARG_WITH(docdir,
|
|
[ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]],
|
|
docdir="\${prefix}/$with_docdir",
|
|
docdir='$(datarootdir)')
|
|
AC_SUBST(docdir)
|
|
|
|
AC_ARG_WITH(htmldir,
|
|
[ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]],
|
|
htmldir="\${prefix}/$with_htmldir",
|
|
htmldir='$(docdir)')
|
|
AC_SUBST(htmldir)
|
|
|
|
# Substitute configuration variables
|
|
AC_SUBST(subdirs)
|
|
AC_SUBST(srcdir)
|
|
AC_SUBST(all_compilers)
|
|
AC_SUBST(all_gtfiles)
|
|
AC_SUBST(all_lang_makefrags)
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|
AC_SUBST(all_lang_makefiles)
|
|
AC_SUBST(all_languages)
|
|
AC_SUBST(all_selected_languages)
|
|
AC_SUBST(build_exeext)
|
|
AC_SUBST(build_install_headers_dir)
|
|
AC_SUBST(build_xm_file_list)
|
|
AC_SUBST(build_xm_include_list)
|
|
AC_SUBST(build_xm_defines)
|
|
AC_SUBST(build_file_translate)
|
|
AC_SUBST(check_languages)
|
|
AC_SUBST(cpp_install_dir)
|
|
AC_SUBST(xmake_file)
|
|
AC_SUBST(tmake_file)
|
|
AC_SUBST(TM_ENDIAN_CONFIG)
|
|
AC_SUBST(TM_MULTILIB_CONFIG)
|
|
AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG)
|
|
AC_SUBST(extra_gcc_objs)
|
|
AC_SUBST(extra_headers_list)
|
|
AC_SUBST(extra_objs)
|
|
AC_SUBST(extra_parts)
|
|
AC_SUBST(extra_passes)
|
|
AC_SUBST(extra_programs)
|
|
AC_SUBST(float_h_file)
|
|
AC_SUBST(gcc_config_arguments)
|
|
AC_SUBST(gcc_gxx_include_dir)
|
|
AC_SUBST(host_exeext)
|
|
AC_SUBST(host_xm_file_list)
|
|
AC_SUBST(host_xm_include_list)
|
|
AC_SUBST(host_xm_defines)
|
|
AC_SUBST(out_host_hook_obj)
|
|
AC_SUBST(install)
|
|
AC_SUBST(lang_opt_files)
|
|
AC_SUBST(lang_specs_files)
|
|
AC_SUBST(lang_tree_files)
|
|
AC_SUBST(local_prefix)
|
|
AC_SUBST(md_file)
|
|
AC_SUBST(objc_boehm_gc)
|
|
AC_SUBST(out_file)
|
|
AC_SUBST(out_object_file)
|
|
AC_SUBST(thread_file)
|
|
AC_SUBST(tm_file_list)
|
|
AC_SUBST(tm_include_list)
|
|
AC_SUBST(tm_defines)
|
|
AC_SUBST(tm_p_file_list)
|
|
AC_SUBST(tm_p_include_list)
|
|
AC_SUBST(xm_file_list)
|
|
AC_SUBST(xm_include_list)
|
|
AC_SUBST(xm_defines)
|
|
AC_SUBST(use_gcc_stdint)
|
|
AC_SUBST(c_target_objs)
|
|
AC_SUBST(cxx_target_objs)
|
|
AC_SUBST(fortran_target_objs)
|
|
AC_SUBST(target_cpu_default)
|
|
|
|
AC_SUBST_FILE(language_hooks)
|
|
|
|
# Echo link setup.
|
|
if test x${build} = x${host} ; then
|
|
if test x${host} = x${target} ; then
|
|
echo "Links are now set up to build a native compiler for ${target}." 1>&2
|
|
else
|
|
echo "Links are now set up to build a cross-compiler" 1>&2
|
|
echo " from ${host} to ${target}." 1>&2
|
|
fi
|
|
else
|
|
if test x${host} = x${target} ; then
|
|
echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
|
|
echo " for ${target}." 1>&2
|
|
else
|
|
echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
|
|
echo " from ${host} to ${target}." 1>&2
|
|
fi
|
|
fi
|
|
|
|
AC_ARG_VAR(GMPLIBS,[How to link GMP])
|
|
AC_ARG_VAR(GMPINC,[How to find GMP include files])
|
|
|
|
case "${GMPLIBS}" in
|
|
*-lmpc*) AC_DEFINE(HAVE_mpc, 1, [Define if mpc is in use.]) ;;
|
|
esac
|
|
|
|
AC_ARG_VAR(PPLLIBS,[How to link PPL])
|
|
AC_ARG_VAR(PPLINC,[How to find PPL include files])
|
|
|
|
AC_ARG_VAR(CLOOGLIBS,[How to link CLOOG])
|
|
AC_ARG_VAR(CLOOGINC,[How to find CLOOG include files])
|
|
if test "x${CLOOGLIBS}" != "x" ; then
|
|
AC_DEFINE(HAVE_cloog, 1, [Define if cloog is in use.])
|
|
fi
|
|
|
|
# Check for plugin support
|
|
AC_ARG_ENABLE(plugin,
|
|
[ --enable-plugin enable plugin support],
|
|
enable_plugin=$enableval,
|
|
enable_plugin=yes; default_plugin=yes)
|
|
|
|
pluginlibs=
|
|
if test x"$enable_plugin" = x"yes"; then
|
|
# Check that the host supports -rdynamic and -ldl
|
|
have_rdynamic=no
|
|
have_dl=no
|
|
saved_LDFLAGS="$LDFLAGS"
|
|
saved_LIBS="$LIBS"
|
|
LIBS=
|
|
|
|
# Check -rdynamic
|
|
LDFLAGS="$LDFLAGS -rdynamic"
|
|
AC_MSG_CHECKING([for -rdynamic])
|
|
AC_TRY_LINK([],[return 0;],
|
|
[AC_MSG_RESULT([yes]); have_rdynamic=yes],
|
|
[AC_MSG_RESULT([no])])
|
|
if test x"$have_rdynamic" = x"yes" ; then
|
|
pluginlibs="-rdynamic"
|
|
fi
|
|
|
|
# Check -ldl
|
|
LDFLAGS="$LDFLAGS -ldl"
|
|
AC_MSG_CHECKING([for -ldl])
|
|
AC_TRY_LINK(
|
|
[#include <dlfcn.h>],
|
|
[volatile int f = 0; if (f) dlopen ("dummy", 0);],
|
|
[AC_MSG_RESULT([yes]); have_dl=yes],
|
|
[AC_MSG_RESULT([no])])
|
|
if test x"$have_dl" = x"yes"; then
|
|
pluginlibs="$pluginlibs -ldl"
|
|
fi
|
|
|
|
# Check that we can build shared objects with -fPIC -shared
|
|
LDFLAGS="$LDFLAGS -fPIC -shared"
|
|
AC_MSG_CHECKING([for -fPIC -shared])
|
|
AC_TRY_LINK(
|
|
[extern int X;],[return X == 0;],
|
|
[AC_MSG_RESULT([yes]); have_pic_shared=yes],
|
|
[AC_MSG_RESULT([no]); have_pic_shared=no])
|
|
if test x"$have_pic_shared" != x"yes"; then
|
|
pluginlibs=
|
|
enable_plugin=no
|
|
fi
|
|
|
|
# If plugin support had been requested but not available, fail.
|
|
if test x"$enable_plugin" = x"no" ; then
|
|
if test x"$default_plugin" != x"yes"; then
|
|
AC_MSG_ERROR([
|
|
Building GCC with plugin support requires a host that supports
|
|
-fPIC, -shared, -ldl and -rdynamic.])
|
|
fi
|
|
fi
|
|
|
|
LDFLAGS="$saved_LDFLAGS"
|
|
LIBS="$saved_LIBS"
|
|
fi
|
|
|
|
AC_SUBST(pluginlibs)
|
|
AC_SUBST(enable_plugin)
|
|
if test x"$enable_plugin" = x"yes"; then
|
|
AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.])
|
|
fi
|
|
|
|
# Configure the subdirectories
|
|
# AC_CONFIG_SUBDIRS($subdirs)
|
|
|
|
# Create the Makefile
|
|
# and configure language subdirectories
|
|
AC_CONFIG_FILES($all_outputs)
|
|
|
|
AC_CONFIG_COMMANDS([default],
|
|
[
|
|
case ${CONFIG_HEADERS} in
|
|
*auto-host.h:config.in*)
|
|
echo > cstamp-h ;;
|
|
esac
|
|
# Make sure all the subdirs exist.
|
|
for d in $subdirs doc build
|
|
do
|
|
test -d $d || mkdir $d
|
|
done
|
|
],
|
|
[subdirs='$subdirs'])
|
|
AC_OUTPUT
|