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# Copyright (C) 1992, 1993, 1994, 1996, 1997, 2000, 2001, 2002, 2004, 2005

# 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 2 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 this program; if not, write to the Free Software

# Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

# 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 objc_start, etc. and other supporting cast members.

# These globals are used by objc_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.

load_lib libgloss.exp

load_lib prune.exp

load_lib gcc-defs.exp

load_lib target-libpath.exp

#

# OBJC_UNDER_TEST is the compiler under test.

#

#

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

#

proc default_objc_version { } {

    global OBJC_UNDER_TEST

    objc_init

    # ignore any arguments after the command

    set compiler [lindex $OBJC_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"

    }

}

#

# Call objc_version. We do it this way so we can override it if needed.

#

proc objc_version { } {

    default_objc_version

}

#

# objc_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 objc_initialized 0

proc objc_init { args } {

    global rootme

    global tmpdir

    global libdir

    global gluefile wrap_flags

    global objc_initialized

    global OBJC_UNDER_TEST

    global TOOL_EXECUTABLE

    global objc_libgcc_s_path

    # 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

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

    if ![info exists OBJC_UNDER_TEST] then {

        if [info exists TOOL_EXECUTABLE] {

            set OBJC_UNDER_TEST $TOOL_EXECUTABLE

        } else {

            set OBJC_UNDER_TEST [find_gcc]

        }

    }

    if ![info exists tmpdir] then {

        set tmpdir /tmp

    }

    objc_maybe_build_wrapper "${tmpdir}/objc-testglue.o"

    append objc_libgcc_s_path [gcc-set-multilib-library-path $OBJC_UNDER_TEST]

}

proc objc_target_compile { source dest type options } {

    global rootme

    global tmpdir

    global gluefile wrap_flags

    global srcdir

    global OBJC_UNDER_TEST

    global TOOL_OPTIONS

    global ld_library_path

    global objc_libgcc_s_path

    global shlib_ext

    set ld_library_path ".:${objc_libgcc_s_path}"

    lappend options "libs=-lobjc"

    set shlib_ext [get_shlib_extension]

    verbose "shared lib extension: $shlib_ext"

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

        lappend options "libs=${gluefile}"

        lappend options "ldflags=$wrap_flags"

    }

    if [target_info exists objc,stack_size] {

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

    }

    if [target_info exists objc,no_trampolines] {

        lappend options "additional_flags=-DNO_TRAMPOLINES"

    }

    if [target_info exists objc,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 we have built libobjc along with the compiler (which usually

    # _is not_ the case on Mac OS X systems), point the test harness

    # at it (and associated headers).

    set objcpath "[get_multilibs]"

    set libobjc_dir [lookfor_file ${objcpath} libobjc/.libs/libobjc.a]

    if { $libobjc_dir == ""} {

      verbose "see if we have -fgnu-runtime in options"

      if [regexp ".*-fgnu-runtime.*" "${options}"] {

        set libobjc_dir [lookfor_file ${objcpath} libobjc/.libs/libobjc-gnu.a]

      }

    }

    # Now check if we have a shared only build.

    if { $libobjc_dir == ""} {

     set libobjc_dir \

         [lookfor_file ${objcpath} libobjc/.libs/libobjc.${shlib_ext}]

    }

    if { $libobjc_dir == ""} {

        verbose "see if we have -fgnu-runtime in options"

        if [regexp ".*-fgnu-runtime.*" "${options}"] {

         set libobjc_dir \

             [lookfor_file ${objcpath} libobjc/.libs/libobjc-gnu.${shlib_ext}]

        }

    }

    if { $libobjc_dir != "" } {

        set objc_include_dir "${srcdir}/../../libobjc"

        lappend options "additional_flags=-I${objc_include_dir}"

        set libobjc_dir [file dirname ${libobjc_dir}]

        set objc_link_flags "-L${libobjc_dir}"

        lappend options "additional_flags=${objc_link_flags}"

        append ld_library_path ":${libobjc_dir}"

    }

    lappend options "compiler=$OBJC_UNDER_TEST"

    set_ld_library_path_env_vars

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

}

#

# objc_pass -- utility to record a testcase passed

#

proc objc_pass { testcase cflags } {

    if { "$cflags" == "" } {

        pass "$testcase"

    } else {

        pass "$testcase, $cflags"

    }

}

#

# objc_fail -- utility to record a testcase failed

#

proc objc_fail { testcase cflags } {

    if { "$cflags" == "" } {

        fail "$testcase"

    } else {

        fail "$testcase, $cflags"

    }

}

#

# objc_finish -- called at the end of every .exp script that calls objc_init

#

# The purpose of this proc is to hide all quirks of the testing environment

# from the testsuites.  It also exists to undo anything that objc_init did

# (that needs undoing).

#

proc objc_finish { } {

    # The testing harness apparently requires this.

    global errorInfo

    if [info exists errorInfo] then {

        unset errorInfo

    }

    # Might as well reset these (keeps our caller from wondering whether

    # s/he has to or not).

    global prms_id bug_id

    set prms_id 0

    set bug_id 0

}

proc objc_exit { } {

    global gluefile

    if [info exists gluefile] {

        file_on_build delete $gluefile

        unset gluefile

    }

}

# If this is an older version of dejagnu (without runtest_file_p),

# provide one and assume the old syntax: foo1.exp bar1.c foo2.exp bar2.c.

# This can be deleted after next dejagnu release.

if { [info procs runtest_file_p] == "" } then {

    proc runtest_file_p { runtests testcase } {

        if { $runtests != "" && [regexp "\[.\]\[cC\]" $runtests] } then {

            if { [lsearch $runtests [file tail $testcase]] >= 0 } then {

                return 1

            } else {

                return 0

            }

        }

        return 1

    }

}

# Provide a definition of this if missing (delete after next dejagnu release).

if { [info procs prune_warnings] == "" } then {

    proc prune_warnings { text } {

        return $text

    }

}

# Utility used by mike-gcc.exp and c-torture.exp.

# Check the compiler(/assembler/linker) output for text indicating that

# the testcase should be marked as "unsupported".

#

# When dealing with a large number of tests, it's difficult to weed out the

# ones that are too big for a particular cpu (eg: 16 bit with a small amount

# of memory).  There are various ways to deal with this.  Here's one.

# Fortunately, all of the cases where this is likely to happen will be using

# gld so we can tell what the error text will look like.

proc ${tool}_check_unsupported_p { output } {

    if [regexp "(^|\n)\[^\n\]*: region \[^\n\]* is full" $output] {

        return "memory full"

    }

    return ""

}

# Prune messages from objc that aren't useful.

proc prune_objc_output { text } {

    #send_user "Before:$text\n"

    regsub -all "(^|\n)\[^\n\]*: In (function|method) \[^\n\]*" $text "" text

    regsub -all "(^|\n)\[^\n\]*: At top level:\[^\n\]*" $text "" text

    # It would be nice to avoid passing anything to objc that would cause it to

    # issue these messages (since ignoring them seems like a hack on our part),

    # but that's too difficult in the general case.  For example, sometimes

    # you need to use -B to point objc at crt0.o, but there are some targets

    # that don't have crt0.o.

    regsub -all "(^|\n)\[^\n\]*file path prefix \[^\n\]* never used" $text "" text

    regsub -all "(^|\n)\[^\n\]*linker input file unused since linking not done" $text "" text

    #send_user "After:$text\n"

    return $text

}