1# This testcase is part of GDB, the GNU debugger.
2
3# Copyright 2000-2020 Free Software Foundation, Inc.
4
5# This program is free software; you can redistribute it and/or modify
6# it under the terms of the GNU General Public License as published by
7# the Free Software Foundation; either version 3 of the License, or
8# (at your option) any later version.
9#
10# This program is distributed in the hope that it will be useful,
11# but WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13# GNU General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
16# along with this program.  If not, see <http://www.gnu.org/licenses/>.
17
18#
19# test running programs
20#
21
22standard_testfile
23
24if [get_compiler_info] {
25    return -1
26}
27
28if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
29    return -1
30}
31
32#
33# set it up at a breakpoint so we can play with the variable values
34#
35
36if ![runto_main] then {
37    perror "couldn't run to breakpoint"
38    continue
39}
40
41#
42# Query GDB for the size of various types
43#
44
45gdb_test "next"
46
47set sizeof_char [get_sizeof "char" 1]
48set sizeof_short [get_sizeof "short" 2]
49set sizeof_int [get_sizeof "int" 4]
50set sizeof_long [get_sizeof "long" 4]
51set sizeof_long_long [get_sizeof "long long" 8]
52
53set sizeof_data_ptr [get_sizeof "void *" 4]
54set sizeof_func_ptr [get_sizeof "void (*)(void)" 4]
55
56set sizeof_float [get_sizeof "float" 4]
57set sizeof_double [get_sizeof "double" 8]
58set sizeof_long_double [get_sizeof "long double" 8]
59
60#
61# Compare GDB's idea of types with the running program
62#
63
64proc check_sizeof { type size } {
65    gdb_test "next" "" ""
66    gdb_test "p size" " = ${size}" "check sizeof \"$type\""
67}
68
69check_sizeof "char" ${sizeof_char}
70check_sizeof "short" ${sizeof_short}
71check_sizeof "int" ${sizeof_int}
72check_sizeof "long" ${sizeof_long}
73check_sizeof "long long" ${sizeof_long_long}
74
75check_sizeof "void *" ${sizeof_data_ptr}
76check_sizeof "void (*)(void)" ${sizeof_func_ptr}
77
78check_sizeof "float" ${sizeof_float}
79check_sizeof "double" ${sizeof_double}
80check_sizeof "long double" ${sizeof_long_double}
81
82proc check_valueof { exp val } {
83    gdb_test "next" "" ""
84    gdb_test "p /d value" " = ${val}" "check valueof \"$exp\""
85}
86
87# Check that GDB and the target agree over the sign of a character.
88
89set signof_byte [get_integer_valueof "(int) '\\377'" -1]
90set signof_char [get_integer_valueof "(int) (char) -1" -1]
91set signof_signed_char [get_integer_valueof "(int) (signed char) -1" -1]
92set signof_unsigned_char [get_integer_valueof "(int) (unsigned char) -1" -1]
93
94check_valueof "'\\377'" ${signof_byte}
95check_valueof "(int) (char) -1" ${signof_char}
96check_valueof "(int) (signed char) -1" ${signof_signed_char}
97check_valueof "(int) (unsigned char) -1" ${signof_unsigned_char}
98
99proc check_padding { fmt type val } {
100    global gdb_prompt
101    gdb_test_no_output "set padding_${type}.v = ${val}"
102    gdb_test "print padding_${type}.p1" "= \"The quick brown \""
103    gdb_test "print${fmt} padding_${type}.v" "= ${val}"
104    gdb_test "print padding_${type}.p2" "\"The quick brown \".*"
105}
106
107# Check that GDB is managing to store a value in a struct field
108# without corrupting the fields immediately adjacent to it.
109
110check_padding "/d" "char" 1
111check_padding "/d" "short" 2
112check_padding "/d" "int" 4
113check_padding "/d" "long" 4
114check_padding "/d" "long_long" 8
115
116# use multiples of two which can be represented exactly
117check_padding "/f" "float" 1
118check_padding "/f" "double" 2
119check_padding "/f" "long_double" 4
120
121#
122# For reference, dump out the entire architecture
123#
124# The output is very long so use a while loop to consume it
125send_gdb "maint print arch\n"
126set ok 1
127while { $ok } {
128    gdb_expect {
129	-re ".*dump" {
130	    #pass "maint print arch $ok"
131	    #set ok [expr $ok + 1]
132	}
133	-re "$gdb_prompt $" {
134	    pass "maint print arch"
135	    set ok 0
136	}
137	timeout {
138	    fail "maint print arch (timeout)"
139	    set ok 0
140	}
141    }
142}
143