1# Copyright 2003-2020 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
18
19global GDBFLAGS
20
21# Skip test if target does not support argument passing.
22if [target_info exists noargs] {
23    return
24}
25
26# This test requires starting new inferior processes, skip it if the target
27# board is a stub.
28if [use_gdb_stub] {
29    return
30}
31
32standard_testfile
33
34if {[build_executable $testfile.exp $testfile \
35	 $srcfile {debug nowarnings}] == -1} {
36    untested "failed to compile"
37    return -1
38}
39
40proc args_test { name arglist } {
41    global srcdir
42    global subdir
43    global testfile
44    global hex
45    global decimal
46
47    clean_restart $testfile
48
49    runto_main
50    gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
51    gdb_continue_to_breakpoint "breakpoint for $name"
52
53    set expected_len [expr 1 + [llength $arglist]]
54    gdb_test "print argc" "\\\$$decimal = $expected_len" "argc for $name"
55
56    set i 1
57    foreach arg $arglist {
58	gdb_test "print argv\[$i\]" "\\\$$decimal = $hex \"$arg\"" \
59	    "argv\[$i\] for $name"
60	set i [expr $i + 1]
61    }
62}
63
64#
65# Test that the --args are processed correctly.
66#
67set old_gdbflags $GDBFLAGS
68
69set GDBFLAGS "$old_gdbflags --args $binfile 1 3"
70args_test basic {{1} {3}}
71
72#
73# Test that the --args are processed correctly even if one of them is empty.
74# The syntax needed is a little peculiar; DejaGNU treats the arguments as a
75# list and expands them itself, since no shell redirection is involved.
76#
77set GDBFLAGS "$old_gdbflags --args $binfile 1 {} 3"
78args_test "one empty" {{1} {} {3}}
79
80#
81# try with 2 empty args
82#
83set GDBFLAGS "$old_gdbflags --args $binfile 1 {} {} 3"
84args_test "two empty" {{1} {} {} 3}
85
86# Try with arguments containing literal single quotes.
87
88set GDBFLAGS "$old_gdbflags --args $binfile 1 '' 3"
89args_test "one empty (with single quotes)" {{1} {''} {3}}
90
91set GDBFLAGS "$old_gdbflags --args $binfile 1 '' '' 3"
92args_test "two empty (with single quotes)" {{1} {''} {''} {3}}
93
94# try with arguments containing literal newlines.
95
96set GDBFLAGS "-nx --args $binfile 1 {\n} 3"
97args_test "one newline" {{1} {\\n} {3}}
98
99set GDBFLAGS "-nx --args $binfile 1 {\n} {\n} 3"
100args_test "two newlines" {{1} {\\n} {\\n} {3}}
101
102set GDBFLAGS $old_gdbflags
103