2631 lines
78 KiB
Plaintext
2631 lines
78 KiB
Plaintext
# configure.in for GCC
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# Process this file with autoconf to generate a configuration script.
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# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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 2, 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 COPYING. If not, write to the Free
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#Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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#02111-1307, USA.
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# Initialization and defaults
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AC_PREREQ(2.13)
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AC_INIT(tree.c)
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AC_CONFIG_HEADER(auto-host.h:config.in)
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remove=rm
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hard_link=ln
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symbolic_link='ln -s'
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copy=cp
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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 "$gcc_exec_prefix_setting" != "ok"; then
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AC_MSG_ERROR([
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*** GCC_EXEC_PREFIX shouldn't contain the current directory when
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*** building gcc. Please change the environment variable
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*** and run configure again.])
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fi
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# Check for additional parameters
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# With GNU ld
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AC_ARG_WITH(gnu-ld,
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[ --with-gnu-ld arrange to work with GNU ld.],
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gnu_ld_flag="$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_WARN([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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# 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_WARN([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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# With stabs
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AC_ARG_WITH(stabs,
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[ --with-stabs arrange to use stabs instead of host debug format],
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stabs="$with_stabs",
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stabs=no)
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# With ELF
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AC_ARG_WITH(elf,
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[ --with-elf arrange to use ELF instead of host debug format],
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elf="$with_elf",
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elf=no)
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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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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='${libsubdir}/include/c++'
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else
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topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
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changequote(<<, >>)dnl
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gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
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changequote([, ])dnl
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fi
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fi
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# Determine whether or not multilibs are enabled.
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AC_ARG_ENABLE(multilib,
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[ --enable-multilib enable library support for multiple ABIs],
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[], [enable_multilib=yes])
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AC_SUBST(enable_multilib)
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# Enable expensive internal checks
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AC_ARG_ENABLE(checking,
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[ --enable-checking[=LIST]
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enable expensive run-time checks. With LIST,
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enable only specific categories of checks.
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Categories are: misc,tree,rtl,gc,gcac; default
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is misc,tree,gc],
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[ac_checking=
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ac_tree_checking=
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ac_rtl_checking=
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ac_gc_checking=
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ac_gc_always_collect=
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case "${enableval}" in
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yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
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no) ;;
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*) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
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set fnord $enableval; shift
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IFS="$ac_save_IFS"
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for check
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do
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case $check in
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misc) ac_checking=1 ;;
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tree) ac_tree_checking=1 ;;
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rtl) ac_rtl_checking=1 ;;
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gc) ac_gc_checking=1 ;;
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gcac) ac_gc_always_collect=1 ;;
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*) AC_MSG_ERROR(unknown check category $check) ;;
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esac
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done
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;;
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esac
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],
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[])
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if test x$ac_checking != x ; then
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AC_DEFINE(ENABLE_CHECKING, 1,
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[Define if you want more run-time sanity checks. This one gets a grab
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bag of miscellaneous but relatively cheap checks.])
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fi
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if test x$ac_tree_checking != x ; then
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AC_DEFINE(ENABLE_TREE_CHECKING, 1,
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[Define if you want all operations on trees (the basic data
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structure of the front ends) to be checked for dynamic type safety
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at runtime. This is moderately expensive.])
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fi
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if test x$ac_rtl_checking != x ; then
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AC_DEFINE(ENABLE_RTL_CHECKING, 1,
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[Define if you want all operations on RTL (the basic data structure
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of the optimizer and back end) to be checked for dynamic type safety
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at runtime. This is quite expensive.])
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fi
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if test x$ac_gc_checking != x ; then
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AC_DEFINE(ENABLE_GC_CHECKING, 1,
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[Define if you want the garbage collector to do object poisoning and
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other memory allocation checks. This is quite expensive.])
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fi
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if test x$ac_gc_always_collect != x ; then
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AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
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[Define if you want the garbage collector to operate in maximally
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paranoid mode, validating the entire heap and collecting garbage at
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every opportunity. This is extremely expensive.])
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fi
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AC_ARG_ENABLE(cpp,
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[ --disable-cpp don't provide a user-visible C preprocessor],
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[], [enable_cpp=yes])
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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=$withval
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fi])
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# Enable __cxa_atexit for C++.
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AC_ARG_ENABLE(__cxa_atexit,
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[ --enable-__cxa_atexit enable __cxa_atexit for C++],
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[], [])
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if test x$enable___cxa_atexit = xyes; then
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AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
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[Define if you want to use __cxa_atexit, rather than atexit, to
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register C++ destructors for local statics and global objects.
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This is essential for fully standards-compliant handling of
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destructors, but requires __cxa_atexit in libc.])
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fi
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# Enable Multibyte Characters for C/C++
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AC_ARG_ENABLE(c-mbchar,
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[ --enable-c-mbchar enable multibyte characters for C and C++],
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if test x$enable_c_mbchar != xno; then
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AC_DEFINE(MULTIBYTE_CHARS, 1,
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[Define if you want the C and C++ compilers to support multibyte
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character sets for source code.])
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fi)
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# Enable threads
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# Pass with no value to take the default
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# Pass with a value to specify a thread package
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AC_ARG_ENABLE(threads,
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[ --enable-threads enable thread usage for target GCC
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--enable-threads=LIB use LIB thread package for target GCC],,
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enable_threads='')
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enable_threads_flag=$enable_threads
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# Check if a valid thread package
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case x${enable_threads_flag} in
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x | xno)
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# No threads
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target_thread_file='single'
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;;
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xyes)
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# default
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target_thread_file=''
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;;
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xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
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xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
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target_thread_file=$enable_threads_flag
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;;
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*)
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echo "$enable_threads is an unknown thread package" 1>&2
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exit 1
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;;
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esac
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AC_ARG_ENABLE(objc-gc,
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[ --enable-objc-gc enable the use of Boehm's garbage collector with
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the GNU Objective-C runtime],
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if test x$enable_objc_gc = xno; then
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objc_boehm_gc=''
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else
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objc_boehm_gc=1
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fi,
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objc_boehm_gc='')
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AC_ARG_WITH(dwarf2,
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[ --with-dwarf2 force the default debug format to be DWARF 2],
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dwarf2="$with_dwarf2",
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dwarf2=no)
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AC_ARG_ENABLE(shared,
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[ --disable-shared don't provide a shared libgcc],
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[
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case $enable_shared in
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yes | no) ;;
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*)
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enable_shared=no
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
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for pkg in $enableval; do
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if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
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enable_shared=yes
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fi
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done
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IFS="$ac_save_ifs"
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;;
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esac
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], [enable_shared=yes])
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AC_SUBST(enable_shared)
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# Determine the host, build, and target systems
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AC_CANONICAL_SYSTEM
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# Set program_transform_name
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AC_ARG_PROGRAM
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# Find the native compiler
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AC_PROG_CC
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AC_PROG_CC_C_O
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# autoconf is lame and doesn't give us any substitution variable for this.
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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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# See if GNAT has been installed
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gcc_AC_PROG_GNAT
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AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
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ac_cv_prog_cc_no_long_long,
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[save_CFLAGS="$CFLAGS"
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CFLAGS="-Wno-long-long"
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AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
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ac_cv_prog_cc_no_long_long=no)
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CFLAGS="$save_CFLAGS"])
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if test x$have_gnat != xno ; then
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AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
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ac_cv_prog_adac_no_long_long,
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[cat >conftest.adb <<EOF
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procedure conftest is begin null; end conftest;
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EOF
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if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
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ac_cv_prog_adac_no_long_long=yes
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else
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ac_cv_prog_adac_no_long_long=no
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fi
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rm -f conftest*])
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else
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ac_cv_prog_adac_no_long_long=yes
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fi
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strict1_warn=
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if test $ac_cv_prog_cc_no_long_long = yes && \
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test $ac_cv_prog_adac_no_long_long = yes ; then
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strict1_warn="-pedantic -Wno-long-long"
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fi
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AC_SUBST(strict1_warn)
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AC_PROG_CPP
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AC_C_INLINE
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gcc_AC_C_VOLATILE
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gcc_AC_C_LONG_DOUBLE
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gcc_AC_C_LONG_LONG
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gcc_AC_C__BOOL
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# sizeof(char) is 1 by definition.
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gcc_AC_COMPILE_CHECK_SIZEOF(short)
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gcc_AC_COMPILE_CHECK_SIZEOF(int)
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gcc_AC_COMPILE_CHECK_SIZEOF(long)
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if test $ac_cv_c_long_long = yes; then
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gcc_AC_COMPILE_CHECK_SIZEOF(long long)
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fi
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if test $ac_cv_c___int64 = yes; then
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gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
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fi
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gcc_AC_C_CHARSET
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# If the native compiler is GCC, we can enable warnings even in stage1.
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# That's useful for people building cross-compilers, or just running a
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# quick `make'.
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warn_cflags=
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if test "x$GCC" = "xyes"; then
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warn_cflags='$(GCC_WARN_CFLAGS)'
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fi
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AC_SUBST(warn_cflags)
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|
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# Stage specific cflags for build.
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stage1_cflags=
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case $build in
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vax-*-*)
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|
if test x$GCC = xyes
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then
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stage1_cflags="-Wa,-J"
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else
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stage1_cflags="-J"
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fi
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;;
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powerpc-*-darwin*)
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# The spiffy cpp-precomp chokes on some legitimate constructs in GCC
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# sources; use -no-cpp-precomp to get to GNU cpp.
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|
# Apple's GCC has bugs in designated initializer handling, so disable
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# that too.
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stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
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;;
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esac
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AC_SUBST(stage1_cflags)
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AC_PROG_MAKE_SET
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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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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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|
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AC_MSG_CHECKING(for GNU C library)
|
|
AC_CACHE_VAL(gcc_cv_glibc,
|
|
[AC_TRY_COMPILE(
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[#include <features.h>],[
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|
#if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
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|
#error Not a GNU C library system
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|
#endif],
|
|
[gcc_cv_glibc=yes],
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gcc_cv_glibc=no)])
|
|
AC_MSG_RESULT($gcc_cv_glibc)
|
|
if test $gcc_cv_glibc = yes; then
|
|
AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
|
|
fi
|
|
|
|
# Find some useful tools
|
|
AC_PROG_AWK
|
|
gcc_AC_PROG_LN
|
|
gcc_AC_PROG_LN_S
|
|
AC_PROG_RANLIB
|
|
gcc_AC_PROG_INSTALL
|
|
|
|
AC_HEADER_STDC
|
|
AC_HEADER_TIME
|
|
gcc_AC_HEADER_STDBOOL
|
|
gcc_AC_HEADER_STRING
|
|
AC_HEADER_SYS_WAIT
|
|
AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
|
|
fcntl.h unistd.h sys/file.h sys/time.h \
|
|
sys/resource.h sys/param.h sys/times.h sys/stat.h \
|
|
direct.h malloc.h langinfo.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
|
|
gcc_AC_C_COMPILE_ENDIAN
|
|
gcc_AC_C_FLOAT_FORMAT
|
|
|
|
# See if we have the mktemp command.
|
|
AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
|
|
|
|
# Do we have a single-tree copy of texinfo?
|
|
if test -f $srcdir/../texinfo/Makefile.in; then
|
|
MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
|
|
gcc_cv_prog_makeinfo_modern=yes
|
|
AC_MSG_RESULT([Using makeinfo from the unified source tree.])
|
|
else
|
|
# See if makeinfo has been installed and is modern enough
|
|
# that we can use it.
|
|
gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
|
|
[GNU texinfo.* \([0-9][0-9.]*\)],
|
|
[4.[1-9]*])
|
|
fi
|
|
|
|
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 AC_SUBST(BUILD_INFO)
|
|
fi
|
|
|
|
# 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 AC_SUBST(GENERATED_MANPAGES)
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
GENERATED_MANPAGES=
|
|
fi
|
|
|
|
# How about lex?
|
|
dnl Don't use AC_PROG_LEX; we insist on flex.
|
|
dnl LEXLIB is not useful in gcc.
|
|
if test -f $srcdir/../flex/skel.c; then
|
|
FLEX='$(objdir)/../flex/flex'
|
|
else
|
|
AC_CHECK_PROG(FLEX, flex, flex, false)
|
|
fi
|
|
|
|
# Bison?
|
|
# The -L switch is so bison can find its skeleton file.
|
|
if test -f $srcdir/../bison/bison.simple; then
|
|
BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
|
|
else
|
|
AC_CHECK_PROG(BISON, bison, bison, false)
|
|
fi
|
|
|
|
# These libraries may be used by collect2.
|
|
# We may need a special search path to get them linked.
|
|
AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
|
|
[save_LIBS="$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="$save_LIBS"
|
|
AC_SUBST(GNAT_LIBEXC)
|
|
|
|
# See if the stage1 system preprocessor understands the ANSI C
|
|
# preprocessor stringification operator. (Used by symcat.h.)
|
|
AC_C_STRINGIZE
|
|
|
|
# Use <inttypes.h> only if it exists,
|
|
# doesn't clash with <sys/types.h>, and declares intmax_t.
|
|
AC_MSG_CHECKING(for inttypes.h)
|
|
AC_CACHE_VAL(gcc_cv_header_inttypes_h,
|
|
[AC_TRY_COMPILE(
|
|
[#include <sys/types.h>
|
|
#include <inttypes.h>],
|
|
[intmax_t i = -1;],
|
|
[gcc_cv_header_inttypes_h=yes],
|
|
gcc_cv_header_inttypes_h=no)])
|
|
AC_MSG_RESULT($gcc_cv_header_inttypes_h)
|
|
if test $gcc_cv_header_inttypes_h = yes; then
|
|
AC_DEFINE(HAVE_INTTYPES_H, 1,
|
|
[Define if you have a working <inttypes.h> header file.])
|
|
fi
|
|
|
|
dnl Disabled until we have a complete test for buggy enum bitfields.
|
|
dnl gcc_AC_C_ENUM_BF_UNSIGNED
|
|
|
|
AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
|
|
sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
|
|
fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat)
|
|
|
|
AC_CHECK_TYPE(ssize_t, int)
|
|
|
|
# Try to determine the array type of the second argument of getgroups
|
|
# for the target system (int or gid_t).
|
|
AC_TYPE_GETGROUPS
|
|
if test "${target}" = "${build}"; then
|
|
TARGET_GETGROUPS_T=$ac_cv_type_getgroups
|
|
else
|
|
case "${target}" in
|
|
# This condition may need some tweaking. It should include all
|
|
# targets where the array type of the second argument of getgroups
|
|
# is int and the type of gid_t is not equivalent to int.
|
|
*-*-sunos* | *-*-ultrix*)
|
|
TARGET_GETGROUPS_T=int
|
|
;;
|
|
*)
|
|
TARGET_GETGROUPS_T=gid_t
|
|
;;
|
|
esac
|
|
fi
|
|
AC_SUBST(TARGET_GETGROUPS_T)
|
|
|
|
gcc_AC_FUNC_PRINTF_PTR
|
|
|
|
case "${host}" in
|
|
*-*-uwin*)
|
|
AC_MSG_ERROR([
|
|
*** UWIN may not be used as a host platform because
|
|
*** linking with posix.dll is not allowed by the GNU GPL])
|
|
;;
|
|
*-*-*vms*)
|
|
# Under VMS, vfork works very different 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_VFORK
|
|
AC_FUNC_MMAP_ANYWHERE
|
|
AC_FUNC_MMAP_FILE
|
|
|
|
AM_ICONV
|
|
|
|
# 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 sbrk abort atof getcwd getwd \
|
|
strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
|
|
fprintf_unlocked strstr errno \
|
|
malloc realloc calloc free basename getopt clock, , ,[
|
|
#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
|
|
])
|
|
|
|
gcc_AC_CHECK_DECLS(times, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_TIMES_H
|
|
#include <sys/times.h>
|
|
#endif
|
|
])
|
|
|
|
# More time-related stuff.
|
|
AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
|
|
AC_TRY_COMPILE([
|
|
#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_TRY_COMPILE([
|
|
#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"
|
|
|
|
# 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)
|
|
|
|
build_xm_file=
|
|
build_xm_defines=
|
|
build_install_headers_dir=install-headers-tar
|
|
build_exeext=
|
|
host_xm_file=
|
|
host_xm_defines=
|
|
host_xmake_file=
|
|
host_truncate_target=
|
|
host_exeext=
|
|
|
|
# Decode the host machine, then the target machine.
|
|
# For the host machine, we save the xm_file variable as host_xm_file;
|
|
# then we decode the target machine and forget everything else
|
|
# that came from the host machine.
|
|
for machine in $build $host $target; do
|
|
. ${srcdir}/config.gcc
|
|
done
|
|
|
|
extra_objs="${host_extra_objs} ${extra_objs}"
|
|
|
|
# Default the target-machine variables that were not explicitly set.
|
|
if test x"$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
|
|
|
|
if test x$float_format = x
|
|
then float_format=i64
|
|
fi
|
|
|
|
if test $float_format = none
|
|
then float_h_file=Makefile.in
|
|
else float_h_file=float-$float_format.h
|
|
fi
|
|
|
|
# Handle cpp installation.
|
|
if test x$enable_cpp != xno
|
|
then
|
|
tmake_file="$tmake_file t-install-cpp"
|
|
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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
if test x$thread_file = x; then
|
|
if test x$target_thread_file != x; then
|
|
thread_file=$target_thread_file
|
|
else
|
|
thread_file='single'
|
|
fi
|
|
fi
|
|
|
|
# auto-host.h is the file containing items generated by autoconf and is
|
|
# the first file included by config.h.
|
|
# If host=build, it is correct to have hconfig include auto-host.h
|
|
# as well. If host!=build, we are in error and need to do more
|
|
# work to find out the build config parameters.
|
|
if test x$host = x$build
|
|
then
|
|
build_auto=auto-host.h
|
|
FORBUILD=..
|
|
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}" \
|
|
${realsrcdir}/configure \
|
|
--target=$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 $tempdir
|
|
build_auto=auto-build.h
|
|
FORBUILD=../$build
|
|
fi
|
|
AC_SUBST(FORBUILD)
|
|
|
|
tm_file="${tm_file} defaults.h"
|
|
host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
|
|
build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
|
|
xm_file="ansidecl.h ${xm_file} ${tm_file}"
|
|
|
|
# Truncate the target if necessary
|
|
if test x$host_truncate_target != x; then
|
|
target=`echo $target | sed -e 's/\(..............\).*/\1/'`
|
|
fi
|
|
|
|
# Get the version trigger filename from the toplevel
|
|
if test "${with_gcc_version_trigger+set}" = set; then
|
|
gcc_version_trigger=$with_gcc_version_trigger
|
|
else
|
|
gcc_version_trigger=${srcdir}/version.c
|
|
fi
|
|
changequote(,)dnl
|
|
gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
|
|
gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
|
|
|
|
# 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
|
|
cat > configargs.h <<EOF
|
|
/* Generated automatically. */
|
|
static const char configuration_arguments[] = "$gcc_config_arguments";
|
|
static const char thread_model[] = "$thread_file";
|
|
EOF
|
|
changequote([,])dnl
|
|
|
|
# Internationalization
|
|
PACKAGE=gcc
|
|
VERSION="$gcc_version"
|
|
AC_SUBST(PACKAGE)
|
|
AC_SUBST(VERSION)
|
|
|
|
# Enable NLS support by default
|
|
AC_ARG_ENABLE(nls,
|
|
[ --enable-nls use Native Language Support (default)],
|
|
, enable_nls=yes)
|
|
|
|
# if cross compiling, disable NLS support.
|
|
# It's not worth the trouble, at least for now.
|
|
|
|
if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
|
|
AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
|
|
enable_nls=no
|
|
fi
|
|
|
|
AM_GNU_GETTEXT
|
|
|
|
# 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 $host_os in
|
|
win32 | pe | cygwin* | mingw32* | uwin*)
|
|
AC_MSG_CHECKING(whether windows registry support is requested)
|
|
if test "x$enable_win32_registry" != xno; then
|
|
AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
|
|
[Define to 1 if installation paths should be looked up in Windows32
|
|
Registry. Ignored on non windows32 hosts.])
|
|
AC_MSG_RESULT(yes)
|
|
AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
fi
|
|
|
|
# Check if user specified a different registry key.
|
|
case "x${enable_win32_registry}" in
|
|
x | xyes)
|
|
# default.
|
|
gcc_cv_win32_registry_key="$VERSION"
|
|
;;
|
|
xno)
|
|
# no registry lookup.
|
|
gcc_cv_win32_registry_key=''
|
|
;;
|
|
*)
|
|
# user-specified key.
|
|
gcc_cv_win32_registry_key="$enable_win32_registry"
|
|
;;
|
|
esac
|
|
|
|
if test "x$enable_win32_registry" != xno; then
|
|
AC_MSG_CHECKING(registry key on windows hosts)
|
|
AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
|
|
[Define to be the last portion of registry key on windows hosts.])
|
|
AC_MSG_RESULT($gcc_cv_win32_registry_key)
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# Get an absolute path to the GCC top-level source directory
|
|
holddir=`pwd`
|
|
cd $srcdir
|
|
topdir=`pwd`
|
|
cd $holddir
|
|
|
|
# Conditionalize the makefile for this host machine.
|
|
# Make-host contains the concatenation of all host makefile fragments
|
|
# [there can be more than one]. This file is built by configure.frag.
|
|
host_overrides=Make-host
|
|
dep_host_xmake_file=
|
|
for f in .. ${host_xmake_file}
|
|
do
|
|
if test -f ${srcdir}/config/$f
|
|
then
|
|
dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
|
|
fi
|
|
done
|
|
|
|
# Conditionalize the makefile for this target machine.
|
|
# Make-target contains the concatenation of all host makefile fragments
|
|
# [there can be more than one]. This file is built by configure.frag.
|
|
target_overrides=Make-target
|
|
dep_tmake_file=
|
|
for f in .. ${tmake_file}
|
|
do
|
|
if test -f ${srcdir}/config/$f
|
|
then
|
|
dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
|
|
fi
|
|
done
|
|
|
|
# If the host doesn't support symlinks, modify CC in
|
|
# FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
|
|
# Otherwise, we can use "CC=$(CC)".
|
|
rm -f symtest.tem
|
|
if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
|
|
then
|
|
cc_set_by_configure="\$(CC)"
|
|
quoted_cc_set_by_configure="\$(CC)"
|
|
stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
|
|
quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
|
|
else
|
|
rm -f symtest.tem
|
|
if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
|
|
then
|
|
symbolic_link="cp -p"
|
|
else
|
|
symbolic_link="cp"
|
|
fi
|
|
cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
|
|
quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
|
|
stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
|
|
quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
|
|
fi
|
|
rm -f symtest.tem
|
|
|
|
out_object_file=`basename $out_file .c`.o
|
|
|
|
tm_file_list=
|
|
for f in $tm_file; do
|
|
case $f in
|
|
ansidecl.h )
|
|
tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
|
|
defaults.h )
|
|
tm_file_list="${tm_file_list} $f" ;;
|
|
*) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
|
|
esac
|
|
done
|
|
|
|
tm_p_file_list=
|
|
for f in $tm_p_file; do
|
|
tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
|
|
done
|
|
|
|
host_xm_file_list=
|
|
for f in $host_xm_file; do
|
|
case $f in
|
|
ansidecl.h )
|
|
host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
|
|
auto-host.h | defaults.h )
|
|
host_xm_file_list="${host_xm_file_list} $f" ;;
|
|
*) host_xm_file_list="${host_xm_file_list} \$(srcdir)/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/ansidecl.h" ;;
|
|
auto-build.h | auto-host.h | defaults.h )
|
|
build_xm_file_list="${build_xm_file_list} $f" ;;
|
|
*) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
|
|
esac
|
|
done
|
|
|
|
# Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
|
|
# Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
|
|
CROSS= AC_SUBST(CROSS)
|
|
ALL=all.internal AC_SUBST(ALL)
|
|
SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
|
|
if test x$host != x$target
|
|
then
|
|
CROSS="-DCROSS_COMPILE"
|
|
ALL=all.cross
|
|
SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
|
|
fi
|
|
|
|
# If this is a cross-compiler that does not
|
|
# have its own set of headers then define
|
|
# inhibit_libc
|
|
|
|
# If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
|
|
# This prevents libgcc2 from containing any code which requires libc
|
|
# support.
|
|
inhibit_libc=
|
|
if [test x$host != x$target] && [test x$with_headers = x]; then
|
|
inhibit_libc=-Dinhibit_libc
|
|
else
|
|
if [test x$with_newlib = xyes]; then
|
|
inhibit_libc=-Dinhibit_libc
|
|
fi
|
|
fi
|
|
AC_SUBST(inhibit_libc)
|
|
|
|
# When building gcc with a cross-compiler, we need to adjust things so
|
|
# that the generator programs are still built with the native compiler.
|
|
# Also, we cannot run fixincludes or fix-header.
|
|
# Note that the terminology here is wrong; it should be BUILD_* throughout.
|
|
# FIXME.
|
|
|
|
# These are the normal (build=host) settings:
|
|
HOST_PREFIX= AC_SUBST(HOST_PREFIX)
|
|
HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
|
|
HOST_CC='$(CC)' AC_SUBST(HOST_CC)
|
|
HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
|
|
|
|
STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
|
|
STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
|
|
|
|
# And these apply if build != host.
|
|
if test x$build != x$host
|
|
then
|
|
HOST_PREFIX=build-
|
|
HOST_PREFIX_1=build-
|
|
HOST_CC='$(CC_FOR_BUILD)'
|
|
HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
|
|
|
|
STMP_FIXINC=
|
|
STMP_FIXPROTO=
|
|
fi
|
|
|
|
# Expand extra_headers to include complete path.
|
|
# This substitutes for lots of t-* files.
|
|
extra_headers_list=
|
|
if test "x$extra_headers" = x
|
|
then true
|
|
else
|
|
# 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
|
|
fi
|
|
|
|
if test x$use_collect2 = xno; then
|
|
use_collect2=
|
|
fi
|
|
|
|
# Add a definition of USE_COLLECT2 if system wants one.
|
|
if test x$use_collect2 != x
|
|
then
|
|
host_xm_defines="${host_xm_defines} USE_COLLECT2"
|
|
xm_defines="${xm_defines} USE_COLLECT2"
|
|
fi
|
|
|
|
# If we have gas in the build tree, make a link to it.
|
|
if test -f ../gas/Makefile; then
|
|
rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
|
|
fi
|
|
|
|
# If we have nm and objdump in the build tree, make a link to them.
|
|
if test -f ../binutils/Makefile; then
|
|
rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
|
|
rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
|
|
fi
|
|
|
|
# If we have ld in the build tree, make a link to it.
|
|
if test -f ../ld/Makefile; then
|
|
rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
|
|
fi
|
|
|
|
# Figure out what assembler we will be using.
|
|
AC_MSG_CHECKING(what assembler to use)
|
|
gcc_cv_as=
|
|
gcc_cv_gas_major_version=
|
|
gcc_cv_gas_minor_version=
|
|
gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
|
|
gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
|
|
if test -x "$DEFAULT_ASSEMBLER"; then
|
|
gcc_cv_as="$DEFAULT_ASSEMBLER"
|
|
elif test -x "$AS"; then
|
|
gcc_cv_as="$AS"
|
|
elif test -x as$host_exeext; then
|
|
# Build using assembler in the current directory.
|
|
gcc_cv_as=./as$host_exeext
|
|
elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
|
|
# Single tree build which includes gas.
|
|
for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
|
|
do
|
|
changequote(,)dnl
|
|
gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
|
|
changequote([,])dnl
|
|
if test x$gcc_cv_gas_version != x; then
|
|
break
|
|
fi
|
|
done
|
|
changequote(,)dnl
|
|
gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
|
|
gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
|
|
gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
|
|
changequote([,])dnl
|
|
fi
|
|
|
|
if test "x$gcc_cv_as" = x; then
|
|
# Search the same directories that the installed compiler will
|
|
# search. Else we may find the wrong assembler and lose. If we
|
|
# do not find a suitable assembler binary, then try the user's
|
|
# path.
|
|
#
|
|
# Also note we have to check MD_EXEC_PREFIX before checking the
|
|
# user's path. Unfortunately, there is no good way to get at the
|
|
# value of MD_EXEC_PREFIX here. So we do a brute force search
|
|
# through all the known MD_EXEC_PREFIX values. Ugh. This needs
|
|
# to be fixed as part of the make/configure rewrite too.
|
|
|
|
if test "x$exec_prefix" = xNONE; then
|
|
if test "x$prefix" = xNONE; then
|
|
test_prefix=/usr/local
|
|
else
|
|
test_prefix=$prefix
|
|
fi
|
|
else
|
|
test_prefix=$exec_prefix
|
|
fi
|
|
|
|
# If the loop below does not find an assembler, then use whatever
|
|
# one we can find in the users's path.
|
|
# user's path.
|
|
if test "x$program_prefix" != xNONE; then
|
|
gcc_cv_as=${program_prefix}as$host_exeext
|
|
else
|
|
gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
|
|
fi
|
|
|
|
test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
|
|
$test_prefix/lib/gcc-lib/$target_alias \
|
|
/usr/lib/gcc/$target_alias/$gcc_version \
|
|
/usr/lib/gcc/$target_alias \
|
|
$test_prefix/$target_alias/bin/$target_alias/$gcc_version \
|
|
$test_prefix/$target_alias/bin"
|
|
|
|
if test x$host = x$target; then
|
|
test_dirs="$test_dirs \
|
|
/usr/libexec \
|
|
/usr/ccs/gcc \
|
|
/usr/ccs/bin \
|
|
/udk/usr/ccs/bin \
|
|
/bsd43/usr/lib/cmplrs/cc \
|
|
/usr/cross64/usr/bin \
|
|
/usr/lib/cmplrs/cc \
|
|
/sysv/usr/lib/cmplrs/cc \
|
|
/svr4/usr/lib/cmplrs/cc \
|
|
/usr/bin"
|
|
fi
|
|
|
|
for dir in $test_dirs; do
|
|
if test -x $dir/as$host_exeext; then
|
|
gcc_cv_as=$dir/as$host_exeext
|
|
break;
|
|
fi
|
|
done
|
|
fi
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
AC_MSG_RESULT("newly built gas")
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_as)
|
|
fi
|
|
|
|
# Figure out what linker we will be using.
|
|
AC_MSG_CHECKING(what linker to use)
|
|
gcc_cv_ld=
|
|
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
|
|
if test -x "$DEFAULT_LINKER"; then
|
|
gcc_cv_ld="$DEFAULT_LINKER"
|
|
elif test -x "$LD"; then
|
|
gcc_cv_ld="$LD"
|
|
elif test -x ld$host_exeext; then
|
|
# Build using linker in the current directory.
|
|
gcc_cv_ld=./ld$host_exeext
|
|
elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
|
|
# Single tree build which includes ld.
|
|
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=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
|
|
changequote([,])dnl
|
|
if test x$gcc_cv_gld_version != x; then
|
|
break
|
|
fi
|
|
done
|
|
changequote(,)dnl
|
|
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
|
|
fi
|
|
|
|
if test "x$gcc_cv_ld" = x; then
|
|
# Search the same directories that the installed compiler will
|
|
# search. Else we may find the wrong linker and lose. If we
|
|
# do not find a suitable linker binary, then try the user's
|
|
# path.
|
|
#
|
|
# Also note we have to check MD_EXEC_PREFIX before checking the
|
|
# user's path. Unfortunately, there is no good way to get at the
|
|
# value of MD_EXEC_PREFIX here. So we do a brute force search
|
|
# through all the known MD_EXEC_PREFIX values. Ugh. This needs
|
|
# to be fixed as part of the make/configure rewrite too.
|
|
|
|
if test "x$exec_prefix" = xNONE; then
|
|
if test "x$prefix" = xNONE; then
|
|
test_prefix=/usr/local
|
|
else
|
|
test_prefix=$prefix
|
|
fi
|
|
else
|
|
test_prefix=$exec_prefix
|
|
fi
|
|
|
|
# If the loop below does not find an linker, then use whatever
|
|
# one we can find in the users's path.
|
|
# user's path.
|
|
if test "x$program_prefix" != xNONE; then
|
|
gcc_cv_ld=${program_prefix}ld$host_exeext
|
|
else
|
|
gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
|
|
fi
|
|
|
|
test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
|
|
$test_prefix/lib/gcc-lib/$target_alias \
|
|
/usr/lib/gcc/$target_alias/$gcc_version \
|
|
/usr/lib/gcc/$target_alias \
|
|
$test_prefix/$target_alias/bin/$target_alias/$gcc_version \
|
|
$test_prefix/$target_alias/bin"
|
|
|
|
if test x$host = x$target; then
|
|
test_dirs="$test_dirs \
|
|
/usr/libexec \
|
|
/usr/ccs/gcc \
|
|
/usr/ccs/bin \
|
|
/udk/usr/ccs/bin \
|
|
/bsd43/usr/lib/cmplrs/cc \
|
|
/usr/cross64/usr/bin \
|
|
/usr/lib/cmplrs/cc \
|
|
/sysv/usr/lib/cmplrs/cc \
|
|
/svr4/usr/lib/cmplrs/cc \
|
|
/usr/bin"
|
|
fi
|
|
|
|
for dir in $test_dirs; do
|
|
if test -x $dir/ld$host_exeext; then
|
|
gcc_cv_ld=$dir/ld$host_exeext
|
|
break;
|
|
fi
|
|
done
|
|
fi
|
|
if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
|
|
AC_MSG_RESULT("newly built ld")
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_ld)
|
|
fi
|
|
|
|
# Figure out what nm we will be using.
|
|
AC_MSG_CHECKING(what nm to use)
|
|
if test -x nm$host_exeext; then
|
|
gcc_cv_nm=./nm$host_exeext
|
|
elif test "x$program_prefix" != xNONE; then
|
|
gcc_cv_nm=${program_prefix}nm$host_exeext
|
|
else
|
|
gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_nm)
|
|
|
|
# Figure out what objdump we will be using.
|
|
AC_MSG_CHECKING(what objdump to use)
|
|
if test -x objdump$host_exeext; then
|
|
gcc_cv_objdump=./objdump$host_exeext
|
|
elif test "x$program_prefix" != xNONE; then
|
|
gcc_cv_objdump=${program_prefix}objdump$host_exeext
|
|
else
|
|
gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_objdump)
|
|
|
|
# Figure out what assembler alignment features are present.
|
|
AC_MSG_CHECKING(assembler alignment features)
|
|
gcc_cv_as_alignment_features=none
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
# Gas version 2.6 and later support for .balign and .p2align.
|
|
# bytes to skip when using .p2align.
|
|
if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
|
|
gcc_cv_as_alignment_features=".balign and .p2align"
|
|
AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
|
|
fi
|
|
# Gas version 2.8 and later support specifying the maximum
|
|
# bytes to skip when using .p2align.
|
|
if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
|
|
gcc_cv_as_alignment_features=".p2align including maximum skip"
|
|
AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
# Check if we have .balign and .p2align
|
|
echo ".balign 4" > conftest.s
|
|
echo ".p2align 2" >> conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_alignment_features=".balign and .p2align"
|
|
AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
|
|
fi
|
|
rm -f conftest.s conftest.o
|
|
# Check if specifying the maximum bytes to skip when
|
|
# using .p2align is supported.
|
|
echo ".p2align 4,,7" > conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_alignment_features=".p2align including maximum skip"
|
|
AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
|
|
fi
|
|
rm -f conftest.s conftest.o
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_alignment_features)
|
|
|
|
AC_MSG_CHECKING(assembler subsection support)
|
|
gcc_cv_as_subsections=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
|
|
gcc_cv_as_subsections="working .subsection -1"
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
# Check if we have .subsection
|
|
echo ".subsection 1" > conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_subsections=".subsection"
|
|
if test x$gcc_cv_nm != x; then
|
|
cat > conftest.s <<EOF
|
|
conftest_label1: .word 0
|
|
.subsection -1
|
|
conftest_label2: .word 0
|
|
.previous
|
|
EOF
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
$gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
|
|
$gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
|
|
if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
|
|
:
|
|
else
|
|
gcc_cv_as_subsections="working .subsection -1"
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
|
|
fi
|
|
if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
|
|
AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
|
|
[Define if your assembler supports .subsection and .subsection -1 starts
|
|
emitting at the beginning of your section.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_subsections)
|
|
|
|
AC_MSG_CHECKING(assembler weak support)
|
|
gcc_cv_as_weak=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
|
|
gcc_cv_as_weak="yes"
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
# Check if we have .weak
|
|
echo " .weak foobar" > conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_weak="yes"
|
|
fi
|
|
rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
|
|
fi
|
|
if test x"$gcc_cv_as_weak" = xyes; then
|
|
AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_weak)
|
|
|
|
AC_MSG_CHECKING(assembler hidden support)
|
|
gcc_cv_as_hidden=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 \
|
|
-a "$gcc_cv_gas_minor_version" -eq 12 \
|
|
-a "$gcc_cv_gas_patch_version" -ge 1 \
|
|
-o "$gcc_cv_gas_major_version" -eq 2 \
|
|
-a "$gcc_cv_gas_minor_version" -gt 12 \
|
|
-o "$gcc_cv_gas_major_version" -gt 2 \
|
|
&& grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
|
|
gcc_cv_as_hidden="yes"
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
# Check if we have .hidden
|
|
echo " .hidden foobar" > conftest.s
|
|
echo "foobar:" >> conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_hidden="yes"
|
|
fi
|
|
rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
|
|
|
|
# GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
|
|
# This is irritatingly difficult to feature test for. Look for
|
|
# the date string after the version number.
|
|
ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
|
|
if echo "$ld_ver" | grep GNU > /dev/null; then
|
|
changequote(,)dnl
|
|
ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
|
|
ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
|
|
if test 0"$ld_date" -lt 20020404; then
|
|
if test -n "$ld_date"; then
|
|
# If there was date string, but was earlier than 2002-04-04, fail
|
|
gcc_cv_as_hidden="no"
|
|
elif test -z "$ld_vers"; then
|
|
# If there was no date string nor ld version number, something is wrong
|
|
gcc_cv_as_hidden="no"
|
|
else
|
|
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]*\.\([0-9]*\)'`
|
|
test -z "$ld_vers_patch" && ld_vers_patch=0
|
|
if test "$ld_vers_major" -lt 2; then
|
|
gcc_cv_as_hidden="no"
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
|
|
gcc_cv_as_hidden="no"
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
|
|
-a "$ld_vers_patch" -eq 0; then
|
|
gcc_cv_as_hidden="no"
|
|
fi
|
|
fi
|
|
fi
|
|
changequote([,])dnl
|
|
fi
|
|
fi
|
|
|
|
if test x"$gcc_cv_as_hidden" = xyes; then
|
|
AC_DEFINE(HAVE_GAS_HIDDEN, 1,
|
|
[Define if your assembler supports .hidden.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_hidden)
|
|
libgcc_visibility=$gcc_cv_as_hidden
|
|
AC_SUBST(libgcc_visibility)
|
|
|
|
AC_MSG_CHECKING(assembler leb128 support)
|
|
gcc_cv_as_leb128=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
|
|
gcc_cv_as_leb128="yes"
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
# Check if we have .[us]leb128, and support symbol arithmetic with it.
|
|
cat > conftest.s <<EOF
|
|
.data
|
|
.uleb128 L2 - L1
|
|
L1:
|
|
.uleb128 1280
|
|
.sleb128 -1010
|
|
L2:
|
|
EOF
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_leb128="yes"
|
|
|
|
# GAS versions before 2.11 do not support uleb128,
|
|
# despite appearing to.
|
|
# ??? There exists an elf-specific test that will crash
|
|
# the assembler. Perhaps it's better to figure out whether
|
|
# arbitrary sections are supported and try the test.
|
|
as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
|
|
if echo "$as_ver" | grep GNU > /dev/null; then
|
|
changequote(,)dnl
|
|
as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
|
|
as_major=`echo $as_ver | sed 's/\..*//'`
|
|
as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
|
|
changequote([,])dnl
|
|
if test $as_major -eq 2 -a $as_minor -lt 11; then
|
|
gcc_cv_as_leb128="no"
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
|
|
fi
|
|
if test x"$gcc_cv_as_leb128" = xyes; then
|
|
AC_DEFINE(HAVE_AS_LEB128, 1,
|
|
[Define if your assembler supports .uleb128.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_leb128)
|
|
|
|
AC_MSG_CHECKING(assembler eh_frame optimization)
|
|
gcc_cv_as_eh_frame=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
|
|
gcc_cv_as_eh_frame="yes"
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
# Check if this is GAS.
|
|
as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
|
|
rm -f a.out 2> /dev/null
|
|
if echo "$as_ver" | grep GNU > /dev/null; then
|
|
# Versions up to and including 2.11.0 may mis-optimize
|
|
# .eh_frame data. Try something.
|
|
cat > conftest.s <<EOF
|
|
.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:
|
|
EOF
|
|
cat > conftest.lit <<EOF
|
|
0000 10000000 00000000 017a0001 781a0004 .........z..x...
|
|
0010 01000000 12000000 18000000 00000000 ................
|
|
0020 08000000 04080000 0044 .........D
|
|
EOF
|
|
cat > conftest.big <<EOF
|
|
0000 00000010 00000000 017a0001 781a0004 .........z..x...
|
|
0010 00000001 00000012 00000018 00000000 ................
|
|
0020 00000008 04000000 0844 .........D
|
|
EOF
|
|
# If the assembler didn't choke, and we can objdump,
|
|
# and we got the correct data, then succeed.
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
|
|
| tail -3 > conftest.got \
|
|
&& { cmp conftest.lit conftest.got > /dev/null 2>&1 \
|
|
|| cmp conftest.big conftest.got > /dev/null 2>&1; }
|
|
then
|
|
gcc_cv_as_eh_frame="yes"
|
|
else
|
|
gcc_cv_as_eh_frame="bad"
|
|
if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
|
|
AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
|
|
[Define if your assembler mis-optimizes .eh_frame data.])
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest.*
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_eh_frame)
|
|
|
|
AC_MSG_CHECKING(assembler section merging support)
|
|
gcc_cv_as_shf_merge=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
|
|
gcc_cv_as_shf_merge=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
# Check if we support SHF_MERGE sections
|
|
echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
|
|
if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_shf_merge=yes
|
|
fi
|
|
rm -f conftest.s conftest.o
|
|
fi
|
|
if test x"$gcc_cv_as_shf_merge" = xyes; then
|
|
AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
|
|
[Define if your assembler supports marking sections with SHF_MERGE flag.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_shf_merge)
|
|
|
|
case "$target" in
|
|
# All TARGET_ABI_OSF targets.
|
|
alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
|
|
AC_CACHE_CHECK([assembler supports explicit relocations],
|
|
gcc_cv_as_explicit_relocs, [
|
|
gcc_cv_as_explicit_relocs=unknown
|
|
if test x$gcc_cv_gas_major_version != x \
|
|
-a x$gcc_cv_gas_minor_version != x
|
|
then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 \
|
|
-a "$gcc_cv_gas_minor_version" -ge 12 \
|
|
-o "$gcc_cv_gas_major_version" -gt 2; then
|
|
gcc_cv_as_explicit_relocs=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
cat > conftest.s << 'EOF'
|
|
.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
|
|
EOF
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_explicit_relocs=yes
|
|
else
|
|
gcc_cv_as_explicit_relocs=no
|
|
fi
|
|
rm -f conftest.s conftest.o
|
|
fi
|
|
])
|
|
if test "x$gcc_cv_as_explicit_relocs" = xyes; then
|
|
AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
|
|
[Define if your assembler supports explicit relocations.])
|
|
fi
|
|
;;
|
|
sparc*-*-*)
|
|
AC_CACHE_CHECK([assembler .register pseudo-op support],
|
|
gcc_cv_as_register_pseudo_op, [
|
|
gcc_cv_as_register_pseudo_op=unknown
|
|
if test x$gcc_cv_as != x; then
|
|
# Check if we have .register
|
|
echo ".register %g2, #scratch" > conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_register_pseudo_op=yes
|
|
else
|
|
gcc_cv_as_register_pseudo_op=no
|
|
fi
|
|
rm -f conftest.s conftest.o
|
|
fi
|
|
])
|
|
if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
|
|
AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
|
|
[Define if your assembler supports .register.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler supports -relax],
|
|
gcc_cv_as_relax_opt, [
|
|
gcc_cv_as_relax_opt=unknown
|
|
if test x$gcc_cv_as != x; then
|
|
# Check if gas supports -relax
|
|
echo ".text" > conftest.s
|
|
if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_relax_opt=yes
|
|
else
|
|
gcc_cv_as_relax_opt=no
|
|
fi
|
|
rm -f conftest.s conftest.o
|
|
fi
|
|
])
|
|
if test "x$gcc_cv_as_relax_opt" = xyes; then
|
|
AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
|
|
[Define if your assembler supports -relax option.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
|
|
gcc_cv_as_sparc_ua_pcrel, [
|
|
gcc_cv_as_sparc_ua_pcrel=unknown
|
|
if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
|
|
gcc_cv_as_sparc_ua_pcrel=no
|
|
echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
|
|
if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
|
|
gcc_cv_as_sparc_ua_pcrel=yes
|
|
fi
|
|
rm -f conftest.s conftest.o conftest
|
|
fi
|
|
])
|
|
if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
|
|
AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
|
|
[Define if your assembler and linker support unaligned PC relative relocs.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
|
|
gcc_cv_as_sparc_ua_pcrel_hidden, [
|
|
if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
|
|
gcc_cv_as_sparc_ua_pcrel_hidden=unknown
|
|
if test x$gcc_cv_objdump != x; then
|
|
gcc_cv_as_sparc_ua_pcrel_hidden=no
|
|
echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
|
|
echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
|
|
echo "foo: .skip 4" >> conftest.s
|
|
if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
|
|
&& $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 $gcc_cv_objdump -R conftest 2> /dev/null \
|
|
| grep 'DISP32' > /dev/null 2>&1; then
|
|
:
|
|
else
|
|
gcc_cv_as_sparc_ua_pcrel_hidden=yes
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest.s conftest.o conftest
|
|
else
|
|
gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
|
|
fi
|
|
])
|
|
if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
|
|
AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
|
|
[Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([for assembler offsetable %lo() support],
|
|
gcc_cv_as_offsetable_lo10, [
|
|
gcc_cv_as_offsetable_lo10=unknown
|
|
if test "x$gcc_cv_as" != x; then
|
|
# Check if assembler has offsetable %lo()
|
|
echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
|
|
echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
|
|
if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
|
|
> /dev/null 2>&1 &&
|
|
$gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
|
|
> /dev/null 2>&1; then
|
|
if cmp conftest.o conftest1.o > /dev/null 2>&1; then
|
|
gcc_cv_as_offsetable_lo10=no
|
|
else
|
|
gcc_cv_as_offsetable_lo10=yes
|
|
fi
|
|
else
|
|
gcc_cv_as_offsetable_lo10=no
|
|
fi
|
|
rm -f conftest.s conftest.o conftest1.s conftest1.o
|
|
fi
|
|
])
|
|
if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
|
|
AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
|
|
[Define if your assembler supports offsetable %lo().])
|
|
fi
|
|
|
|
;;
|
|
|
|
changequote(,)dnl
|
|
i[34567]86-*-* | x86_64-*-*)
|
|
changequote([,])dnl
|
|
AC_MSG_CHECKING(assembler instructions)
|
|
gcc_cv_as_instructions=
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
|
|
gcc_cv_as_instructions="filds fists"
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
set "filds fists" "filds mem; fists mem"
|
|
while test $# -gt 0
|
|
do
|
|
echo "$2" > conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
|
|
fi
|
|
shift 2
|
|
done
|
|
rm -f conftest.s conftest.o
|
|
fi
|
|
if test x"$gcc_cv_as_instructions" != x; then
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_instructions)
|
|
|
|
AC_MSG_CHECKING(assembler GOTOFF in data directives)
|
|
gcc_cv_as_gotoff_in_data=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
|
|
then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 \
|
|
-a "$gcc_cv_gas_minor_version" -ge 11 \
|
|
-o "$gcc_cv_gas_major_version" -gt 2; then
|
|
gcc_cv_as_gotoff_in_data=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x; then
|
|
cat > conftest.s <<EOF
|
|
.text
|
|
.L0:
|
|
nop
|
|
.data
|
|
.long .L0@GOTOFF
|
|
EOF
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_as_gotoff_in_data=yes
|
|
fi
|
|
fi
|
|
AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
|
|
[`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
|
|
[Define true if the assembler supports '.long foo@GOTOFF'.])
|
|
AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
|
|
;;
|
|
esac
|
|
|
|
AC_MSG_CHECKING(assembler dwarf2 debug_line support)
|
|
gcc_cv_as_dwarf2_debug_line=no
|
|
# ??? 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 "$target" in
|
|
i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
|
|
insn="nop"
|
|
;;
|
|
ia64*-*-*)
|
|
insn="nop 0"
|
|
;;
|
|
esac
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
|
|
then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 \
|
|
-a "$gcc_cv_gas_minor_version" -ge 11 \
|
|
-o "$gcc_cv_gas_major_version" -gt 2 \
|
|
&& grep 'obj_format = elf' ../gas/Makefile > /dev/null \
|
|
&& test x"$insn" != x ; then
|
|
gcc_cv_as_dwarf2_debug_line="yes"
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x"$insn" != x ; then
|
|
echo ' .file 1 "conftest.s"' > conftest.s
|
|
echo ' .loc 1 3 0' >> conftest.s
|
|
echo " $insn" >> conftest.s
|
|
# ??? This fails with non-gnu grep.
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
|
|
&& grep debug_line conftest.o > /dev/null 2>&1 ; then
|
|
# 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.
|
|
echo ' .file 1 "foo.s"' > conftest.s
|
|
echo ' .file 1 "bar.s"' >> conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
|
|
then
|
|
gcc_cv_as_dwarf2_debug_line="no"
|
|
else
|
|
gcc_cv_as_dwarf2_debug_line="yes"
|
|
fi
|
|
fi
|
|
rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
|
|
fi
|
|
if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; 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
|
|
AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
|
|
|
|
AC_MSG_CHECKING(assembler --gdwarf2 support)
|
|
gcc_cv_as_gdwarf2_flag=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
|
|
then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 \
|
|
-a "$gcc_cv_gas_minor_version" -ge 11 \
|
|
-o "$gcc_cv_gas_major_version" -gt 2 \
|
|
&& grep 'obj_format = elf' ../gas/Makefile > /dev/null \
|
|
&& test x"$insn" != x ; then
|
|
gcc_cv_as_gdwarf2_debug_flag="yes"
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x"$insn" != x ; then
|
|
echo '' > conftest.s
|
|
# ??? This fails with non-gnu grep.
|
|
if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
|
|
then
|
|
gcc_cv_as_gdwarf2_flag="yes"
|
|
fi
|
|
rm -f conftest.s conftest.o
|
|
fi
|
|
if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
|
|
AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
|
|
[Define if your assembler supports the --gdwarf2 option.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
|
|
|
|
AC_MSG_CHECKING(assembler --gstabs support)
|
|
gcc_cv_as_gstabs_flag=no
|
|
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
|
|
then
|
|
if test "$gcc_cv_gas_major_version" -eq 2 \
|
|
-a "$gcc_cv_gas_minor_version" -ge 11 \
|
|
-o "$gcc_cv_gas_major_version" -gt 2 \
|
|
&& grep 'obj_format = elf' ../gas/Makefile > /dev/null \
|
|
&& test x"$insn" != x ; then
|
|
gcc_cv_as_gstabs_debug_flag="yes"
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x"$insn" != x ; then
|
|
echo '' > conftest.s
|
|
# ??? This fails with non-gnu grep.
|
|
if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
|
|
gcc_cv_as_gstabs_flag="yes"
|
|
fi
|
|
rm -f conftest.s conftest.o
|
|
fi
|
|
if test x"$gcc_cv_as_gstabs_flag" = xyes; then
|
|
AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
|
|
[Define if your assembler supports the --gstabs option.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
|
|
|
|
AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
|
|
gcc_cv_ld_eh_frame_hdr=no
|
|
if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; 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 $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
|
|
gcc_cv_ld_eh_frame_hdr=yes
|
|
fi
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
|
|
if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
|
|
AC_MSG_CHECKING(whether linker eh_frame optimizations work properly)
|
|
gcc_cv_ld_eh_frame_hdr_works=no
|
|
if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
|
|
gcc_cv_ld_eh_frame_hdr_works=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
for gcc_WS in 4 8; do
|
|
cat > conftest.s <<EOF
|
|
.text
|
|
.LFB1: .skip 64
|
|
.LFE1:
|
|
.LFB2: .skip 64
|
|
.LFE2:
|
|
.LFB3: .skip 64
|
|
.LFE3:
|
|
.section .eh_frame,"aw",@progbits
|
|
.Lframe1:
|
|
.4byte .LECIE1-.LSCIE1
|
|
.LSCIE1:
|
|
.4byte 0x0
|
|
.byte 0x1
|
|
.ascii "zR\0"
|
|
.uleb128 0x1
|
|
.sleb128 -4
|
|
.byte 0x8
|
|
.uleb128 0x1
|
|
.byte 0x50
|
|
.byte 0xc
|
|
.uleb128 0x4
|
|
.uleb128 0x4
|
|
.byte 0x88
|
|
.uleb128 0x1
|
|
.balign ${gcc_WS}
|
|
.LECIE1:
|
|
.LSFDE1:
|
|
.4byte .LEFDE1-.LASFDE1
|
|
.LASFDE1:
|
|
.4byte .LASFDE1-.Lframe1
|
|
.${gcc_WS}byte .LFB1
|
|
.${gcc_WS}byte .LFE1-.LFB1
|
|
.uleb128 0x0
|
|
.balign ${gcc_WS}
|
|
.LEFDE1:
|
|
.LSFDE2:
|
|
.4byte .LEFDE2-.LASFDE2
|
|
.LASFDE2:
|
|
.4byte .LASFDE2-.Lframe1
|
|
.${gcc_WS}byte .LFB2
|
|
.${gcc_WS}byte .LFE2-.LFB2
|
|
.uleb128 0x0
|
|
.balign ${gcc_WS}
|
|
.LEFDE2:
|
|
.LSFDE3:
|
|
.4byte .LEFDE3-.LASFDE3
|
|
.LASFDE3:
|
|
.4byte .LASFDE3-.Lframe1
|
|
.${gcc_WS}byte .LFB3
|
|
.${gcc_WS}byte .LFE3-.LFB3
|
|
.uleb128 0x0
|
|
.balign ${gcc_WS}
|
|
.LEFDE3:
|
|
.4byte 0
|
|
EOF
|
|
if ($gcc_cv_as -o conftest.o conftest.s; exit $?) 1>&AC_FD_CC 2>&1; then
|
|
if ($gcc_cv_ld --eh-frame-hdr -shared -o conftest.so conftest.o; exit $?) 1>&AC_FD_CC 2>&1; then
|
|
changequote(,)dnl
|
|
if $gcc_cv_objdump -h conftest.so 2>&AC_FD_CC \
|
|
| grep 'eh_frame_hdr[ ]*0*[01][048cC][ ]' 1>&AC_FD_CC 2>&1; then
|
|
gcc_cv_ld_eh_frame_hdr_works=yes; break
|
|
else
|
|
$gcc_cv_objdump -h conftest.so 2>/dev/null | grep eh_frame_hdr 1>&AC_FD_CC 2>&1
|
|
fi
|
|
changequote([,])dnl
|
|
fi
|
|
fi
|
|
rm -f conftest.*
|
|
done
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr_works)
|
|
fi
|
|
if test x"$gcc_cv_ld_eh_frame_hdr" = xyes \
|
|
&& test x"$gcc_cv_ld_eh_frame_hdr_works" = xyes; then
|
|
AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
|
|
[Define if your linker supports --eh-frame-hdr option.])
|
|
fi
|
|
|
|
if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
|
|
AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
|
|
fi
|
|
|
|
# Figure out what language subdirectories are present.
|
|
# Look if the user specified --enable-languages="..."; if not, use
|
|
# the environment variable $LANGUAGES if defined. $LANGUAGES might
|
|
# go away some day.
|
|
# NB: embedded tabs in this IF block -- do not untabify
|
|
if test x"${enable_languages+set}" != xset; then
|
|
if test x"${LANGUAGES+set}" = xset; then
|
|
enable_languages="${LANGUAGES}"
|
|
AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
|
|
|
|
else
|
|
enable_languages=all
|
|
fi
|
|
else
|
|
if test x"${enable_languages}" = x ||
|
|
test x"${enable_languages}" = xyes;
|
|
then
|
|
AC_MSG_ERROR([--enable-languages needs at least one language argument])
|
|
fi
|
|
fi
|
|
enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
|
|
|
|
# First scan to see if an enabled language requires some other language.
|
|
# We assume that a given config-lang.in will list all the language
|
|
# front ends it requires, even if some are required indirectly.
|
|
for lang in ${srcdir}/*/config-lang.in ..
|
|
do
|
|
case $lang in
|
|
..)
|
|
;;
|
|
# The odd quoting in the next line works around
|
|
# an apparent bug in bash 1.12 on linux.
|
|
changequote(,)dnl
|
|
${srcdir}/[*]/config-lang.in)
|
|
;;
|
|
*)
|
|
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
|
|
this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
|
|
for other in $this_lang_requires
|
|
do
|
|
case ,${enable_languages}, in
|
|
*,$other,*)
|
|
;;
|
|
*,all,*)
|
|
;;
|
|
*,$lang_alias,*)
|
|
enable_languages="$enable_languages,$other"
|
|
;;
|
|
esac
|
|
done
|
|
;;
|
|
changequote([,])dnl
|
|
esac
|
|
done
|
|
|
|
subdirs=
|
|
for lang in ${srcdir}/*/config-lang.in ..
|
|
do
|
|
case $lang in
|
|
..) ;;
|
|
# The odd quoting in the next line works around
|
|
# an apparent bug in bash 1.12 on linux.
|
|
changequote(,)dnl
|
|
${srcdir}/[*]/config-lang.in) ;;
|
|
*)
|
|
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
|
|
this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
|
|
build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
|
|
if test "x$lang_alias" = x
|
|
then
|
|
echo "$lang doesn't set \$language." 1>&2
|
|
exit 1
|
|
fi
|
|
case ${build_by_default},${enable_languages}, in
|
|
*,$lang_alias,*) add_this_lang=yes ;;
|
|
no,*) add_this_lang=no ;;
|
|
*,all,*) add_this_lang=yes ;;
|
|
*) add_this_lang=no ;;
|
|
esac
|
|
if test x"${add_this_lang}" = xyes; then
|
|
case $lang in
|
|
${srcdir}/ada/config-lang.in)
|
|
if test x$have_gnat = xyes ; then
|
|
subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
|
|
fi
|
|
;;
|
|
*)
|
|
subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
|
|
;;
|
|
esac
|
|
fi
|
|
;;
|
|
changequote([,])dnl
|
|
esac
|
|
done
|
|
|
|
# Make gthr-default.h if we have a thread file.
|
|
gthread_flags=
|
|
if test $thread_file != single; then
|
|
rm -f gthr-default.h
|
|
echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
|
|
gthread_flags=-DHAVE_GTHR_DEFAULT
|
|
fi
|
|
AC_SUBST(gthread_flags)
|
|
|
|
# Find out what GC implementation we want, or may, use.
|
|
AC_ARG_WITH(gc,
|
|
[ --with-gc={simple,page} choose the garbage collection mechanism to use
|
|
with the compiler],
|
|
[case "$withval" in
|
|
simple | page)
|
|
GGC=ggc-$withval
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR([$withval is an invalid option to --with-gc])
|
|
;;
|
|
esac],
|
|
[GGC=ggc-page])
|
|
AC_SUBST(GGC)
|
|
echo "Using $GGC for garbage collection."
|
|
|
|
# Use the system's zlib library.
|
|
zlibdir=-L../zlib
|
|
zlibinc="-I\$(srcdir)/../zlib"
|
|
AC_ARG_WITH(system-zlib,
|
|
[ --with-system-zlib use installed libz],
|
|
zlibdir=
|
|
zlibinc=
|
|
)
|
|
AC_SUBST(zlibdir)
|
|
AC_SUBST(zlibinc)
|
|
|
|
dnl Very limited version of automake's enable-maintainer-mode
|
|
|
|
AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
|
|
dnl maintainer-mode is disabled by default
|
|
AC_ARG_ENABLE(maintainer-mode,
|
|
[ --enable-maintainer-mode
|
|
enable make rules and dependencies not useful
|
|
(and sometimes confusing) to the casual installer],
|
|
maintainer_mode=$enableval,
|
|
maintainer_mode=no)
|
|
|
|
AC_MSG_RESULT($maintainer_mode)
|
|
|
|
if test "$maintainer_mode" = "yes"; then
|
|
MAINT=''
|
|
else
|
|
MAINT='#'
|
|
fi
|
|
AC_SUBST(MAINT)dnl
|
|
|
|
# With Setjmp/Longjmp based exception handling.
|
|
AC_ARG_ENABLE(sjlj-exceptions,
|
|
[ --enable-sjlj-exceptions
|
|
arrange to use setjmp/longjmp exception handling],
|
|
[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.])])
|
|
|
|
# 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.
|
|
|
|
lang_specs_files=
|
|
lang_options_files=
|
|
lang_tree_files=
|
|
for subdir in . $subdirs
|
|
do
|
|
if test -f $srcdir/$subdir/lang-specs.h; then
|
|
lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
|
|
fi
|
|
if test -f $srcdir/$subdir/lang-options.h; then
|
|
lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
|
|
fi
|
|
if test -f $srcdir/$subdir/$subdir-tree.def; then
|
|
lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
|
|
fi
|
|
done
|
|
|
|
# These (without "all_") are set in each config-lang.in.
|
|
# `language' must be a single word so is spelled singularly.
|
|
all_languages=
|
|
all_boot_languages=
|
|
all_compilers=
|
|
all_stagestuff=
|
|
all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
|
|
# List of language makefile fragments.
|
|
all_lang_makefiles=
|
|
|
|
# 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_fragments="Make-lang"
|
|
language_hooks="Make-hooks"
|
|
|
|
for s in .. $subdirs
|
|
do
|
|
if test $s != ".."
|
|
then
|
|
language=
|
|
boot_language=
|
|
compilers=
|
|
stagestuff=
|
|
outputs=
|
|
. ${srcdir}/$s/config-lang.in
|
|
if test "x$language" = x
|
|
then
|
|
echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
|
|
exit 1
|
|
fi
|
|
all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
|
|
if test -f ${srcdir}/$s/Makefile.in
|
|
then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
|
|
fi
|
|
all_languages="$all_languages $language"
|
|
if test "x$boot_language" = xyes
|
|
then
|
|
all_boot_languages="$all_boot_languages $language"
|
|
fi
|
|
all_compilers="$all_compilers $compilers"
|
|
all_stagestuff="$all_stagestuff $stagestuff"
|
|
all_outputs="$all_outputs $outputs"
|
|
fi
|
|
done
|
|
|
|
check_languages=
|
|
for language in .. $all_languages
|
|
do
|
|
if test $language != ".."
|
|
then
|
|
check_languages="$check_languages check-$language"
|
|
fi
|
|
done
|
|
|
|
# Since we can't use `::' targets, we link each language in
|
|
# with a set of hooks, reached indirectly via lang.${target}.
|
|
|
|
rm -f Make-hooks
|
|
touch Make-hooks
|
|
target_list="all.build all.cross start.encap rest.encap \
|
|
info dvi generated-manpages \
|
|
install-normal install-common install-info install-man \
|
|
uninstall \
|
|
mostlyclean clean distclean extraclean maintainer-clean \
|
|
stage1 stage2 stage3 stage4"
|
|
for t in $target_list
|
|
do
|
|
x=
|
|
for lang in .. $all_languages
|
|
do
|
|
if test $lang != ".."; then
|
|
x="$x $lang.$t"
|
|
fi
|
|
done
|
|
echo "lang.$t: $x" >> Make-hooks
|
|
done
|
|
|
|
# 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 ${srcdir}/gdbinit.in" >> .gdbinit
|
|
|
|
# Define variables host_canonical and build_canonical
|
|
# because some Cygnus local changes in the Makefile depend on them.
|
|
build_canonical=${build}
|
|
host_canonical=${host}
|
|
target_subdir=
|
|
if test "${host}" != "${target}" ; then
|
|
target_subdir=${target_alias}/
|
|
fi
|
|
AC_SUBST(build_canonical)
|
|
AC_SUBST(host_canonical)
|
|
AC_SUBST(target_subdir)
|
|
|
|
# If $(exec_prefix) exists and is not the same as $(prefix), then compute an
|
|
# absolute path for gcc_tooldir based on inserting the number of up-directory
|
|
# movements required to get from $(exec_prefix) to $(prefix) into the basic
|
|
# $(libsubdir)/@(unlibsubdir) based path.
|
|
# Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
|
|
# make and thus we'd get different behavior depending on where we built the
|
|
# sources.
|
|
if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
|
|
gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
|
|
else
|
|
changequote(<<, >>)dnl
|
|
# An explanation of the sed strings:
|
|
# -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
|
|
# -e 's|/$||' match a trailing forward slash and eliminates it
|
|
# -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
|
|
# -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
|
|
#
|
|
# (*) Note this pattern overwrites the first character of the string
|
|
# with a forward slash if one is not already present. This is not a
|
|
# problem because the exact names of the sub-directories concerned is
|
|
# unimportant, just the number of them matters.
|
|
#
|
|
# The practical upshot of these patterns is like this:
|
|
#
|
|
# prefix exec_prefix result
|
|
# ------ ----------- ------
|
|
# /foo /foo/bar ../
|
|
# /foo/ /foo/bar ../
|
|
# /foo /foo/bar/ ../
|
|
# /foo/ /foo/bar/ ../
|
|
# /foo /foo/bar/ugg ../../
|
|
#
|
|
dollar='$$'
|
|
gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
|
|
changequote([, ])dnl
|
|
fi
|
|
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)
|
|
|
|
# Nothing to do for FLOAT_H, float_format already handled.
|
|
objdir=`pwd`
|
|
AC_SUBST(objdir)
|
|
|
|
# Process the language and host/target makefile fragments.
|
|
${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
|
|
|
|
# Substitute configuration variables
|
|
AC_SUBST(subdirs)
|
|
AC_SUBST(all_boot_languages)
|
|
AC_SUBST(all_compilers)
|
|
AC_SUBST(all_lang_makefiles)
|
|
AC_SUBST(all_languages)
|
|
AC_SUBST(all_stagestuff)
|
|
AC_SUBST(build_exeext)
|
|
AC_SUBST(build_install_headers_dir)
|
|
AC_SUBST(build_xm_file_list)
|
|
AC_SUBST(build_xm_file)
|
|
AC_SUBST(build_xm_defines)
|
|
AC_SUBST(check_languages)
|
|
AC_SUBST(cc_set_by_configure)
|
|
AC_SUBST(quoted_cc_set_by_configure)
|
|
AC_SUBST(cpp_install_dir)
|
|
AC_SUBST(dep_host_xmake_file)
|
|
AC_SUBST(dep_tmake_file)
|
|
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(libstdcxx_incdir)
|
|
AC_SUBST(gcc_version)
|
|
AC_SUBST(gcc_version_full)
|
|
AC_SUBST(gcc_version_trigger)
|
|
AC_SUBST(host_exeext)
|
|
AC_SUBST(host_extra_gcc_objs)
|
|
AC_SUBST(host_xm_file_list)
|
|
AC_SUBST(host_xm_file)
|
|
AC_SUBST(host_xm_defines)
|
|
AC_SUBST(install)
|
|
AC_SUBST(lang_options_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(stage_prefix_set_by_configure)
|
|
AC_SUBST(quoted_stage_prefix_set_by_configure)
|
|
AC_SUBST(symbolic_link)
|
|
AC_SUBST(thread_file)
|
|
AC_SUBST(tm_file_list)
|
|
AC_SUBST(tm_file)
|
|
AC_SUBST(tm_p_file_list)
|
|
AC_SUBST(tm_p_file)
|
|
AC_SUBST(xm_file)
|
|
AC_SUBST(xm_defines)
|
|
AC_SUBST(target_alias)
|
|
AC_SUBST(c_target_objs)
|
|
AC_SUBST(cxx_target_objs)
|
|
AC_SUBST(target_cpu_default)
|
|
|
|
AC_SUBST_FILE(target_overrides)
|
|
AC_SUBST_FILE(host_overrides)
|
|
AC_SUBST_FILE(language_fragments)
|
|
AC_SUBST_FILE(language_hooks)
|
|
|
|
# Echo that links are built
|
|
if test x$host = x$target
|
|
then
|
|
str1="native "
|
|
else
|
|
str1="cross-"
|
|
str2=" from $host"
|
|
fi
|
|
|
|
if test x$host != x$build
|
|
then
|
|
str3=" on a $build system"
|
|
fi
|
|
|
|
if test "x$str2" != x || test "x$str3" != x
|
|
then
|
|
str4=
|
|
fi
|
|
|
|
echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
|
|
|
|
if test "x$str2" != x || test "x$str3" != x
|
|
then
|
|
echo " ${str2}${str3}." 1>&2
|
|
fi
|
|
|
|
# Truncate the target if necessary
|
|
if test x$host_truncate_target != x; then
|
|
target=`echo $target | sed -e 's/\(..............\).*/\1/'`
|
|
fi
|
|
|
|
# Configure the subdirectories
|
|
# AC_CONFIG_SUBDIRS($subdirs)
|
|
|
|
# Create the Makefile
|
|
# and configure language subdirectories
|
|
AC_OUTPUT($all_outputs,
|
|
[
|
|
case x$CONFIG_HEADERS in
|
|
xauto-host.h:config.in)
|
|
echo > cstamp-h ;;
|
|
esac
|
|
# If the host supports symlinks, point stage[1234] at ../stage[1234] so
|
|
# bootstrapping and the installation procedure can still use
|
|
# CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
|
|
# FLAGS_TO_PASS has been modified to solve the problem there.
|
|
# This is virtually a duplicate of what happens in configure.lang; we do
|
|
# an extra check to make sure this only happens if ln -s can be used.
|
|
if test "$symbolic_link" = "ln -s"; then
|
|
for d in .. ${subdirs} fixinc ; do
|
|
if test $d != ..; then
|
|
STARTDIR=`pwd`
|
|
cd $d
|
|
for t in stage1 stage2 stage3 stage4 include
|
|
do
|
|
rm -f $t
|
|
$symbolic_link ../$t $t 2>/dev/null
|
|
done
|
|
cd $STARTDIR
|
|
fi
|
|
done
|
|
else true ; fi
|
|
# Avoid having to add intl to our include paths.
|
|
if test -f intl/libintl.h; then
|
|
echo creating libintl.h
|
|
echo '#include "intl/libintl.h"' >libintl.h
|
|
fi
|
|
],
|
|
[subdirs='$subdirs'
|
|
symbolic_link='$symbolic_link'
|
|
])
|