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# Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009

# Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with GCC; see the file COPYING3.  If not see

# .

# This file is just 'sed -e 's/77/fortran/g' \

#                        -e 's/f2c/gfortran' g77.exp > gfortran.exp'

#

# with some minor modifications to make it work.

#

# gfortran support library routines

#

load_lib prune.exp

load_lib gcc-defs.exp

load_lib timeout.exp

load_lib target-libpath.exp

load_lib target-supports.exp

#

# GFORTRAN_UNDER_TEST is the compiler under test.

#

set gpp_compile_options ""

#

# gfortran_version -- extract and print the version number of the compiler

#

proc gfortran_version { } {

    global GFORTRAN_UNDER_TEST

    gfortran_init

    # ignore any arguments after the command

    set compiler [lindex $GFORTRAN_UNDER_TEST 0]

    # verify that the compiler exists

    if { [is_remote host] || [which $compiler] != 0 } then {

        set tmp [remote_exec host "$compiler -v"]

        set status [lindex $tmp 0]

        set output [lindex $tmp 1]

        regexp " version \[^\n\r\]*" $output version

        if { $status == 0 && [info exists version] } then {

            if [is_remote host] {

                clone_output "$compiler $version\n"

            } else {

                clone_output "[which $compiler] $version\n"

            }

        } else {

            clone_output "Couldn't determine version of [which $compiler]\n"

        }

    } else {

        # compiler does not exist (this should have already been detected)

        warning "$compiler does not exist"

    }

}

#

# gfortran_link_flags -- provide new version of gfortran_link_flags

# (originally from libgloss.exp) which knows about the gcc tree structure

#

proc gfortran_link_flags { paths } {

    global srcdir

    global ld_library_path

    global GFORTRAN_UNDER_TEST

    global shlib_ext

    set gccpath ${paths}

    set libio_dir ""

    set flags ""

    set ld_library_path "."

    set shlib_ext [get_shlib_extension]

    verbose "shared lib extension: $shlib_ext"

    if { $gccpath != "" } {

      if [file exists "${gccpath}/libgfortran/.libs/libgfortran.a"] {

          # Some targets use libgfortran.a%s in their specs, so they need a -B option

          # for uninstalled testing.

          append flags "-B${gccpath}/libgfortran/.libs "

          append flags "-L${gccpath}/libgfortran/.libs "

          append ld_library_path ":${gccpath}/libgfortran/.libs"

      }

      if [file exists "${gccpath}/libgfortran/.libs/libgfortran.${shlib_ext}"] {

          append flags "-L${gccpath}/libgfortran/.libs "

          append ld_library_path ":${gccpath}/libgfortran/.libs"

      }

      if [file exists "${gccpath}/libgfortran/libgforbegin.a"] {

          append flags "-L${gccpath}/libgfortran "

      }

      if [file exists "${gccpath}/libiberty/libiberty.a"] {

          append flags "-L${gccpath}/libiberty "

      }

      append ld_library_path \

        [gcc-set-multilib-library-path $GFORTRAN_UNDER_TEST]

    }

    set_ld_library_path_env_vars

    return "$flags"

}

#

# gfortran_init -- called at the start of each subdir of tests

#

proc gfortran_init { args } {

    global subdir

    global gpp_initialized

    global base_dir

    global tmpdir

    global libdir

    global gluefile wrap_flags

    global objdir srcdir

    global ALWAYS_GFORTRANFLAGS

    global TOOL_EXECUTABLE TOOL_OPTIONS

    global GFORTRAN_UNDER_TEST

    global TESTING_IN_BUILD_TREE

    # We set LC_ALL and LANG to C so that we get the same error messages as expected.

    setenv LC_ALL C

    setenv LANG C

    # Many hosts now default to a non-ASCII C locale, however, so

    # they can set a charset encoding here if they need.

    if { [ishost "*-*-cygwin*"] } {

      setenv LC_ALL C.ASCII

      setenv LANG C.ASCII

    }

    if ![info exists GFORTRAN_UNDER_TEST] then {

        if [info exists TOOL_EXECUTABLE] {

            set GFORTRAN_UNDER_TEST $TOOL_EXECUTABLE

        } else {

            if { [is_remote host] || ! [info exists TESTING_IN_BUILD_TREE] } {

                set GFORTRAN_UNDER_TEST [transform gfortran]

            } else {

                set GFORTRAN_UNDER_TEST [findfile $base_dir/../../gfortran "$base_dir/../../gfortran -B$base_dir/../../" [findfile $base_dir/gfortran "$base_dir/gfortran -B$base_dir/" [transform gfortran]]]

            }

        }

    }

    if ![is_remote host] {

        if { [which $GFORTRAN_UNDER_TEST] == 0 } then {

            perror "GFORTRAN_UNDER_TEST ($GFORTRAN_UNDER_TEST) does not exist"

            exit 1

        }

    }

    if ![info exists tmpdir] {

        set tmpdir "/tmp"

    }

    if [info exists gluefile] {

        unset gluefile

    }

    gfortran_maybe_build_wrapper "${tmpdir}/gfortran-testglue.o"

    set ALWAYS_GFORTRANFLAGS ""

    if ![is_remote host] {

        if [info exists TOOL_OPTIONS] {

            lappend ALWAYS_GFORTRANFLAGS "ldflags=[gfortran_link_flags [get_multilibs ${TOOL_OPTIONS}] ]"

        } else {

            lappend ALWAYS_GFORTRANFLAGS "ldflags=[gfortran_link_flags [get_multilibs] ]"

        }

    }

    if [info exists TOOL_OPTIONS] {

        lappend ALWAYS_GFORTRANFLAGS "additional_flags=$TOOL_OPTIONS"

    }

    # On the SPU, most of the fortran test cases exceed local store size.

    # Use automatic overlay support to make them fit.

    if { [check_effective_target_spu_auto_overlay] } {

        lappend ALWAYS_GFORTRANFLAGS "ldflags=-Wl,--auto-overlay"

        lappend ALWAYS_GFORTRANFLAGS "ldflags=-Wl,--reserved-space=131072"

    }

    verbose -log "ALWAYS_GFORTRANFLAGS set to $ALWAYS_GFORTRANFLAGS"

    verbose "gfortran is initialized" 3

}

#

# gfortran_target_compile -- compile a source file

#

proc gfortran_target_compile { source dest type options } {

    global tmpdir

    global gluefile wrap_flags

    global ALWAYS_GFORTRANFLAGS

    global GFORTRAN_UNDER_TEST

    if { [target_info needs_status_wrapper] != "" && [info exists gluefile] } {

        lappend options "libs=${gluefile}"

        lappend options "ldflags=${wrap_flags}"

    }

    lappend options "compiler=$GFORTRAN_UNDER_TEST"

    lappend options "timeout=[timeout_value]"

    set options [concat "$ALWAYS_GFORTRANFLAGS" $options]

    set options [dg-additional-files-options $options $source]

    return [target_compile $source $dest $type $options]

}