1# Copyright 2003, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.
15
16# This is a test for the gdb invocation option --args.
17
18if $tracelevel then {
19    strace $tracelevel
20}
21
22
23global GDBFLAGS
24
25# Skip test if target does not support argument passing.
26if [target_info exists noargs] {
27    return;
28}
29
30set testfile "args"
31set srcfile ${testfile}.c
32set binfile ${objdir}/${subdir}/${testfile}
33
34if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
35    untested args.exp
36    return -1
37}
38
39proc args_test { name arglist } {
40    global srcdir
41    global subdir
42    global binfile
43    global hex
44    global decimal
45
46    gdb_exit
47    gdb_start
48    gdb_reinitialize_dir $srcdir/$subdir
49
50    # No loading needs to be done when the target is `exec'.  Some targets
51    # require that the program be loaded, however, and it doesn't hurt
52    # for `exec'.
53    gdb_load $binfile
54
55    runto_main
56    gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
57    gdb_continue_to_breakpoint "breakpoint for $name"
58
59    set expected_len [expr 1 + [llength $arglist]]
60    gdb_test "print argc" "\\\$$decimal = $expected_len" "argc for $name"
61
62    set i 1
63    foreach arg $arglist {
64	gdb_test "print argv\[$i\]" "\\\$$decimal = $hex \"$arg\"" \
65	    "argv\[$i\] for $name"
66	set i [expr $i + 1]
67    }
68}
69
70#
71# Test that the --args are processed correctly.
72#
73set old_gdbflags $GDBFLAGS
74
75set GDBFLAGS "$old_gdbflags --args $binfile 1 3"
76args_test basic {{1} {3}}
77
78#
79# Test that the --args are processed correctly even if one of them is empty.
80# The syntax needed is a little peculiar; DejaGNU treats the arguments as a
81# list and expands them itself, since no shell redirection is involved.
82#
83set GDBFLAGS "$old_gdbflags --args $binfile 1 {} 3"
84args_test "one empty" {{1} {} {3}}
85
86#
87# try with 2 empty args
88#
89set GDBFLAGS "$old_gdbflags --args $binfile 1 {} {} 3"
90args_test "two empty" {{1} {} {} 3}
91
92# Try with arguments containing literal single quotes.
93
94set GDBFLAGS "$old_gdbflags --args $binfile 1 '' 3"
95args_test "one empty (with single quotes)" {{1} {''} {3}}
96
97set GDBFLAGS "$old_gdbflags --args $binfile 1 '' '' 3"
98args_test "two empty (with single quotes)" {{1} {''} {''} {3}}
99
100# try with arguments containing literal newlines.
101
102set GDBFLAGS "-nx --args $binfile 1 {\n} 3"
103args_test "one newline" {{1} {\\n} {3}}
104
105set GDBFLAGS "-nx --args $binfile 1 {\n} {\n} 3"
106args_test "two newlines" {{1} {\\n} {\\n} {3}}
107
108set GDBFLAGS $old_gdbflags
109