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# Copyright (C) 1992, 1993, 1994, 1996, 1997, 1999, 2000, 2001, 2003, 2004, 2007

# 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 was written by Rob Savoye (rob@cygnus.com)

# Currently maintained by Doug Evans (dje@cygnus.com)

# This file is loaded by the tool init file (eg: unix.exp).  It provides

# default definitions for gcc_start, etc. and other supporting cast members.

# These globals are used by gcc_start if no compiler arguments are provided.

# They are also used by the various testsuites to define the environment:

# where to find stdio.h, libc.a, etc.

# we want to use libgloss so we can get find_gcc.

load_lib libgloss.exp

load_lib prune.exp

load_lib gcc-defs.exp

#

# GCC_UNDER_TEST is the compiler under test.

#

#

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

#

proc default_gcc_version { } {

    global GCC_UNDER_TEST

    gcc_init

    # ignore any arguments after the command

    set compiler [lindex $GCC_UNDER_TEST 0]

    if ![is_remote host] {

        set compiler_name [which $compiler]

    } else {

        set compiler_name $compiler

    }

    # verify that the compiler exists

    if { $compiler_name != 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 {

            clone_output "$compiler_name $version\n"

        } else {

            clone_output "Couldn't determine version of $compiler_name: $output\n"

        }

    } else {

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

        warning "$compiler does not exist"

    }

}

#

# gcc_version -- Call default_gcc_version, so we can override it if needed.

#

proc gcc_version { } {

    default_gcc_version

}

#

# gcc_init -- called at the start of each .exp script.

#

# There currently isn't much to do, but always using it allows us to

# make some enhancements without having to go back and rewrite the scripts.

#

set gcc_initialized 0

proc gcc_init { args } {

    global tmpdir

    global libdir

    global gluefile wrap_flags

    global gcc_initialized

    global GCC_UNDER_TEST

    global TOOL_EXECUTABLE

    if { $gcc_initialized == 1 } { return; }

    if ![info exists GCC_UNDER_TEST] {

        if [info exists TOOL_EXECUTABLE] {

            set GCC_UNDER_TEST $TOOL_EXECUTABLE

        } else {

            set GCC_UNDER_TEST "[find_gcc]"

        }

    }

    if ![info exists tmpdir] then {

        set tmpdir /tmp

    }

    gcc_maybe_build_wrapper "${tmpdir}/gcc-testglue.o"

}

#

# gcc_target_compile -- compile a source file

#

proc gcc_target_compile { source dest type options } {

    global tmpdir

    global gluefile wrap_flags

    global GCC_UNDER_TEST

    global TOOL_OPTIONS

    if {[target_info needs_status_wrapper] != "" && \

            [target_info needs_status_wrapper] != "0" && \

            [info exists gluefile] } {

        lappend options "libs=${gluefile}"

        lappend options "ldflags=$wrap_flags"

    }

    if [target_info exists gcc,stack_size] {

        lappend options "additional_flags=-DSTACK_SIZE=[target_info gcc,stack_size]"

    }

    if [target_info exists gcc,no_trampolines] {

        lappend options "additional_flags=-DNO_TRAMPOLINES"

    }

    if [target_info exists gcc,no_label_values] {

        lappend options "additional_flags=-DNO_LABEL_VALUES"

    }

    # TOOL_OPTIONS must come first, so that it doesn't override testcase

    # specific options.

    if [info exists TOOL_OPTIONS] {

        set options [concat "{additional_flags=$TOOL_OPTIONS}" $options]

    }

    if [target_info exists gcc,timeout] {

        lappend options "timeout=[target_info gcc,timeout]"

    }

    lappend options "additional_flags=-fno-show-column"

    lappend options "compiler=$GCC_UNDER_TEST"

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

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

}