# Copyright (C) 2006 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 James A. Morrison (ja2morri@uwaterloo.ca)
# based on gcc.exp written by Rob Savoye (rob@cygnus.com).

# This file is loaded by the tool init file (eg: unix.exp).  It provides
# default definitions for gnat_start, etc. and other supporting cast members.

# These globals are used 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

#
# GNAT_UNDER_TEST is the compiler under test.
#

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

proc default_gnat_version { } {
    global GNAT_UNDER_TEST

    gnat_init

    # ignore any arguments after the command
    set compiler [lindex $GNAT_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"
    }
}

# gnat_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 gnat_initialized 0

proc gnat_init { args } {
    global rootme
    global tmpdir
    global libdir
    global gluefile wrap_flags
    global gnat_initialized
    global GNAT_UNDER_TEST
    global TOOL_EXECUTABLE
    global gnat_libgcc_s_path

    if { $gnat_initialized == 1 } { return }

    if ![info exists GNAT_UNDER_TEST] then {
	if [info exists TOOL_EXECUTABLE] {
	    set GNAT_UNDER_TEST $TOOL_EXECUTABLE
	} else {
	    set GNAT_UNDER_TEST [find_gnatmake]
	}
    }

    if ![info exists tmpdir] then {
	set tmpdir /tmp
    }

    set gnat_libgcc_s_path "${rootme}"
    # Leave this here since Ada should support multilibs at some point.
    set compiler [lindex $GNAT_UNDER_TEST 0]
#    if { [is_remote host] == 0 && [which $compiler] != 0 } {
#	foreach i "[exec $compiler --print-multi-lib]" {
#	    set mldir ""
#	    regexp -- "\[a-z0-9=/\.-\]*;" $i mldir
#	    set mldir [string trimright $mldir "\;@"]
#	    if { "$mldir" == "." } {
#		continue
#	    }
#	    if { [llength [glob -nocomplain ${rootme}/${mldir}/libgcc_s*.so.*]] >= 1 } {
#		append gnat_libgcc_s_path ":${rootme}/${mldir}"
#	    }
#	}
#    }
}

proc gnat_target_compile { source dest type options } {
    global rootme
    global tmpdir
    global gluefile wrap_flags
    global srcdir
    global GNAT_UNDER_TEST
    global TOOL_OPTIONS
    global ld_library_path
    global gnat_libgcc_s_path

    setenv ADA_INCLUDE_PATH "${rootme}/ada/rts"
    set ld_library_path ".:${gnat_libgcc_s_path}"
    lappend options "compiler=$GNAT_UNDER_TEST -q -f"
    lappend options "incdir=${rootme}/ada/rts"

    if { [target_info needs_status_wrapper]!="" && [info exists gluefile] } {
	lappend options "libs=${gluefile}"
	lappend options "ldflags=$wrap_flags"
    }

    # 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 libada along with the compiler, point the test harness
    # at it (and associated headers).

#    set sourcename [string range $source 0 [expr [string length $source] - 5]]
#    set dest ""
    return [target_compile $source $dest $type $options]
}

#
# gnat_pass -- utility to record a testcase passed
#

proc gnat_pass { testcase cflags } {
    if { "$cflags" == "" } {
	pass "$testcase"
    } else {
	pass "$testcase, $cflags"
    }
}

#
# gnat_fail -- utility to record a testcase failed
#

proc gnat_fail { testcase cflags } {
    if { "$cflags" == "" } {
	fail "$testcase"
    } else {
	fail "$testcase, $cflags"
    }
}

#
# gnat_finish -- called at the end of every .exp script that calls gnat_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 gnat_init did
# (that needs undoing).
#

proc gnat_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 gnat_exit { } {
    global gluefile

    if [info exists gluefile] {
	file_on_build delete $gluefile
	unset gluefile
    }
}

# Prune messages from GNAT that aren't useful.

proc prune_gnat_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

    # prune the output from gnatmake.
    regsub -all "(^|\n)\[^\n\]*gnatmake: [^\n\]*" $text "" text

    # It would be nice to avoid passing anything to gnat 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 gnat 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
}

# If this is an older version of DejaGnu (without find_gnatmake), provide one.
# This can be deleted after next DejaGnu release.

if { [info procs find_gnatmake] == "" } {
    proc find_gnatmake {} {
	global tool_root_dir

	if ![is_remote host] {
	    set file [lookfor_file $tool_root_dir gnatmake]
	    if { $file == "" } {
		set file [lookfor_file $tool_root_dir gcc/gnatmake]
	    }
	    if { $file != "" } {
		set root [file dirname $file]
		set CC "$file -I$root/ada/rts --GCC=$root/xgcc --GNATBIND=$root/gnatbind --GNATLINK=$root/gnatlink -cargs -B$root -largs --GCC=$root/xgcc -B$root -margs";
	    } else {
		set CC [transform gnatmake]
	    }
	} else {
	    set CC [transform gnatmake]
	}
	return $CC
    }
}

# 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
    }
}