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#   Copyright 2002

#   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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

# This file was written by Joel Brobecker. (brobecker@gnat.com), derived

# from selftest.exp, written by Rob Savoye.

if $tracelevel then {

    strace $tracelevel

}

set prms_id 0

set bug_id 0

# are we on a target board

if [is_remote target] {

    return

}

if [istarget "m68k*-*-hpux*"] then {

    # The top-level makefile passes CFLAGS= (no -g) for hp300.  This probably

    # should be fixed (it is only needed for gcc bootstrapping, not gdb),

    # but until then.....

    setup_xfail "*-*-*"

    fail "cannot test self if compiled without debug info"

    return -1

}

proc setup_test { executable } {

    global gdb_prompt

    global timeout

    # load yourself into the debugger

    # This can take a relatively long time, particularly for testing where

    # the executable is being accessed over a network, or where gdb does not

    # support partial symbols for a particular target and has to load the

    # entire symbol table.  Set the timeout to 10 minutes, which should be

    # adequate for most environments (it *has* timed out with 5 min on a

    # SPARCstation SLC under moderate load, so this isn't unreasonable).

    # After gdb is started, set the timeout to 30 seconds for the duration

    # of this test, and then back to the original value.

    set oldtimeout $timeout

    set timeout 600

    verbose "Timeout is now $timeout seconds" 2

    if {[gdb_load $executable] <0} then {

        set timeout $oldtimeout

        verbose "Timeout is now $timeout seconds" 2

        return -1

    }

    set timeout $oldtimeout

    verbose "Timeout is now $timeout seconds" 2

    # Set a breakpoint at main

    gdb_test "break captured_main" \

            "Breakpoint.*at.* file.*, line.*" \

            "breakpoint in captured_main"

    # run yourself

    # It may take a very long time for the inferior gdb to start (lynx),

    # so we bump it back up for the duration of this command.

    set timeout 600

    set description "run until breakpoint at captured_main"

    send_gdb "run -nw\n"

    gdb_expect {

        -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {

            pass "$description"

        }

        -re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {

            xfail "$description (line numbers scrambled?)"

        }

        -re "vfork: No more processes.*$gdb_prompt $" {

            fail "$description (out of virtual memory)"

            set timeout $oldtimeout

            verbose "Timeout is now $timeout seconds" 2

            return -1

        }

        -re ".*$gdb_prompt $" {

            fail "$description"

            set timeout $oldtimeout

            verbose "Timeout is now $timeout seconds" 2

            return -1

        }

        timeout {

            fail "$description (timeout)"

        }

    }

    set timeout $oldtimeout

    verbose "Timeout is now $timeout seconds" 2

    return 0

}

proc test_with_self { executable } {

    set setup_result [setup_test $executable]

    if {$setup_result <0} then {

        return -1

    }

    # A file which contains a directory prefix

    gdb_test "print xfullpath (\"./xfullpath.exp\")" \

             ".\[0-9\]+ =.*\".*/xfullpath.exp\"" \

             "A filename with ./ as the directory prefix"

    # A file which contains a directory prefix

    gdb_test "print xfullpath (\"../../defs.h\")" \

             ".\[0-9\]+ =.*\".*/defs.h\"" \

             "A filename with ../ in the directory prefix"

    # A one-character filename

    gdb_test "print xfullpath (\"./a\")" \

             ".\[0-9\]+ =.*\".*/a\"" \

             "A one-char filename in the current directory"

    # A file in the root directory

    gdb_test "print xfullpath (\"/root_file_which_should_exist\")" \

             ".\[0-9\]+ =.*\"/root_file_which_should_exist\"" \

             "A filename in the root directory"

    # A file which does not have a directory prefix

    gdb_test "print xfullpath (\"xfullpath.exp\")" \

             ".\[0-9\]+ =.*\"xfullpath.exp\"" \

             "A filename without any directory prefix"

    # A one-char filename without any directory prefix

    gdb_test "print xfullpath (\"a\")" \

             ".\[0-9\]+ =.*\"a\"" \

             "A one-char filename without any directory prefix"

    # An empty filename

    gdb_test "print xfullpath (\"\")" \

             ".\[0-9\]+ =.*\"\"" \

             "An empty filename"

    return 0

}

# Find a pathname to a file that we would execute if the shell was asked

# to run $arg using the current PATH.

proc find_gdb { arg } {

    # If the arg directly specifies an existing executable file, then

    # simply use it.

    if [file executable $arg] then {

        return $arg

    }

    set result [which $arg]

    if [string match "/" [ string range $result 0 0 ]] then {

        return $result

    }

    # If everything fails, just return the unqualified pathname as default

    # and hope for best.

    return $arg

}

# Run the test with self.

# Copy the file executable file in case this OS doesn't like to edit its own

# text space.

set GDB_FULLPATH [find_gdb $GDB]

# Remove any old copy lying around.

remote_file host delete x$tool

gdb_start

set file [remote_download host $GDB_FULLPATH x$tool]

set result [test_with_self $file];

gdb_exit;

catch "remote_file host delete $file";

if {$result <0} then {

    warning "Couldn't test self"

    return -1

}