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# Copyright 2003, 2007, 2008 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 this program.  If not, see .

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

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

# This is a test for the gdb invocation option --args.

if $tracelevel then {

    strace $tracelevel

}

global GDBFLAGS

# Skip test if target does not support argument passing.

if [target_info exists noargs] {

    return;

}

set testfile "args"

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {

    untested args.exp

    return -1

}

proc args_test { name arglist } {

    global srcdir

    global subdir

    global binfile

    global hex

    global decimal

    gdb_exit

    gdb_start

    gdb_reinitialize_dir $srcdir/$subdir

    # No loading needs to be done when the target is `exec'.  Some targets

    # require that the program be loaded, however, and it doesn't hurt

    # for `exec'.

    gdb_load $binfile

    runto_main

    gdb_breakpoint [gdb_get_line_number "set breakpoint here"]

    gdb_continue_to_breakpoint "breakpoint for $name"

    set expected_len [expr 1 + [llength $arglist]]

    gdb_test "print argc" "\\\$$decimal = $expected_len" "argc for $name"

    set i 1

    foreach arg $arglist {

        gdb_test "print argv\[$i\]" "\\\$$decimal = $hex \"$arg\"" \

            "argv\[$i\] for $name"

        set i [expr $i + 1]

    }

}

#

# Test that the --args are processed correctly.

#

set old_gdbflags $GDBFLAGS

set GDBFLAGS "--args $binfile 1 3"

args_test basic {{1} {3}}

#

# Test that the --args are processed correctly even if one of them is empty.

# The syntax needed is a little peculiar; DejaGNU treats the arguments as a

# list and expands them itself, since no shell redirection is involved.

#

set GDBFLAGS "--args $binfile 1 {} 3"

args_test "one empty" {{1} {} {3}}

#

# try with 2 empty args

#

set GDBFLAGS "--args $binfile 1 {} {} 3"

args_test "two empty" {{1} {} {} 3}

# Try with arguments containing literal single quotes.

set GDBFLAGS "--args $binfile 1 '' 3"

args_test "one empty" {{1} {''} {3}}

set GDBFLAGS "--args $binfile 1 '' '' 3"

args_test "two empty" {{1} {''} {''} {3}}

set GDBFLAGS $old_gdbflags