1# Copyright (C) 1992-2020 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 file was written by Jeff Law. (law@cs.utah.edu)
17
18if { [prepare_for_testing "failed to prepare" "return"] } {
19    return -1
20}
21
22set skip_float_test [gdb_skip_float_test]
23
24proc return_tests { } {
25    global gdb_prompt skip_float_test
26
27
28    if { ! [ runto func1 ] } then { return 0 }
29
30    gdb_test_multiple "return" "simple return" {
31	-re "Make .* return now.*y or n. $" {
32	    send_gdb "y\n"
33	    exp_continue
34	}
35	-re "func1 ..;.*$gdb_prompt $" {
36	    send_gdb "step\n"
37	    exp_continue
38	}
39	-re ".*in main after func1.*$gdb_prompt $" {
40	    pass "simple return"
41	}
42    }
43
44    # Set breakpoints in other interesting functions.
45    gdb_test "break func2" ".*"
46    gdb_test "break func3" ".*"
47
48    gdb_test "continue" "return -5;" "continue to return of -5"
49
50    gdb_test_multiple "return 5" "return value 5" {
51	-re "Make .* return now.*y or n. $" {
52	    send_gdb "y\n"
53	    exp_continue
54	}
55	-re ".*tmp2 = func2.*$gdb_prompt $" {
56	    # pass without comment
57	}
58    }
59
60    gdb_test "next" "tmp3 = func3.*" "next over call to func2"
61
62    gdb_test "p tmp2" ".* = 5" "correct value returned (integer test)"
63
64    gdb_test "continue" "return -5.0;" "continue to return of -5.0"
65
66    # Return of a double does not work for 68hc11 (need struct return
67    # in memory).
68    setup_xfail "m6811-*-*"
69
70    gdb_test_multiple "return 5.0" "return value 5.0" {
71	-re "Make .* return now.*y or n. $" {
72	    send_gdb "y\n"
73	    exp_continue
74	}
75	-re ".*tmp3 = func3.*$gdb_prompt $" {
76	    # pass without comment
77	}
78    }
79
80    setup_xfail "m6811-*-*"
81    gdb_test "next" "printf.*" "next over call to func3"
82
83    # This test also fails for sparc Solaris 2.3 & 2.4, but passes under 2.5
84    # At the time the `next' is issued, the floating point unit for the
85    # process is not yet initialized, and the storing of the floating
86    # point value to the floating point return register is ignored.
87    # Xfail it for current versions that are known to fail.  Presumably
88    # if some future version does initialize the floating point unit at
89    # process start, making this test pass, it will be for a version that
90    # is not xfailed.
91
92    setup_xfail "sparc-*-solaris2.3*" "sparc-*-solaris2.4*" "m6811-*-*"
93    if {!$skip_float_test} {
94	gdb_test "p tmp3" ".* = 5.*" \
95	    "correct value returned double test (known problem with sparc solaris)"
96    }
97}
98
99set prev_timeout $timeout
100set timeout 30
101return_tests
102set timeout $prev_timeout
103