1# This testcase is part of GDB, the GNU debugger.
2
3# Copyright 2000-2013 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
18if [target_info exists gdb,noinferiorio] {
19    verbose "Skipping sizeof.exp because of no fileio capabilities."
20    continue
21}
22
23#
24# test running programs
25#
26
27set testfile "sizeof"
28set srcfile ${testfile}.c
29set binfile ${objdir}/${subdir}/${testfile}
30if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
31     untested sizeof.exp
32     return -1
33}
34
35if [get_compiler_info] {
36    return -1;
37}
38
39gdb_exit
40gdb_start
41gdb_reinitialize_dir $srcdir/$subdir
42gdb_load ${binfile}
43
44#
45# set it up at a breakpoint so we can play with the variable values
46#
47
48if ![runto_main] then {
49    perror "couldn't run to breakpoint"
50    continue
51}
52
53#
54# Query GDB for the size of various types
55#
56
57gdb_test "next"
58
59set sizeof_char [get_sizeof "char" 1]
60set sizeof_short [get_sizeof "short" 2]
61set sizeof_int [get_sizeof "int" 4]
62set sizeof_long [get_sizeof "long" 4]
63set sizeof_long_long [get_sizeof "long long" 8]
64
65set sizeof_data_ptr [get_sizeof "void *" 4]
66set sizeof_func_ptr [get_sizeof "void (*)(void)" 4]
67
68set sizeof_float [get_sizeof "float" 4]
69set sizeof_double [get_sizeof "double" 8]
70set sizeof_long_double [get_sizeof "long double" 8]
71
72#
73# Compare GDB's idea of types with the running program
74#
75
76proc check_sizeof { type size } {
77    global gdb_prompt
78
79    set pat [string_to_regexp "sizeof (${type}) == ${size}"]
80    gdb_test "next" "${pat}\[\r\n\]+\[0-9\].*"  "check sizeof \"$type\""
81}
82
83check_sizeof "char" ${sizeof_char}
84check_sizeof "short" ${sizeof_short}
85check_sizeof "int" ${sizeof_int}
86check_sizeof "long" ${sizeof_long}
87check_sizeof "long long" ${sizeof_long_long}
88
89check_sizeof "void *" ${sizeof_data_ptr}
90check_sizeof "void (*)(void)" ${sizeof_func_ptr}
91
92check_sizeof "float" ${sizeof_float}
93check_sizeof "double" ${sizeof_double}
94check_sizeof "long double" ${sizeof_long_double}
95
96proc check_valueof { exp val } {
97    global gdb_prompt
98
99    set pat [string_to_regexp "valueof (${exp}) == ${val}"]
100    gdb_test "next" "${pat}\[\r\n\]+\[0-9\].*" "check valueof \"$exp\""
101}
102
103# Check that GDB and the target agree over the sign of a character.
104
105set signof_byte [get_integer_valueof "'\\377'" -1]
106set signof_char [get_integer_valueof "(int) (char) -1" -1]
107set signof_signed_char [get_integer_valueof "(int) (signed char) -1" -1]
108set signof_unsigned_char [get_integer_valueof "(int) (unsigned char) -1" -1]
109
110check_valueof "'\\377'" ${signof_byte}
111check_valueof "(int) (char) -1" ${signof_char}
112check_valueof "(int) (signed char) -1" ${signof_signed_char}
113check_valueof "(int) (unsigned char) -1" ${signof_unsigned_char}
114
115proc check_padding { fmt type val } {
116    global gdb_prompt
117    gdb_test_no_output "set padding_${type}.v = ${val}"
118    gdb_test "print padding_${type}.p1" "= \"The quick brown \""
119    gdb_test "print${fmt} padding_${type}.v" "= ${val}"
120    gdb_test "print padding_${type}.p2" "\"The quick brown \".*"
121}
122
123# Check that GDB is managing to store a value in a struct field
124# without corrupting the fields immediately adjacent to it.
125
126check_padding "/d" "char" 1
127check_padding "/d" "short" 2
128check_padding "/d" "int" 4
129check_padding "/d" "long" 4
130check_padding "/d" "long_long" 8
131
132# use multiples of two which can be represented exactly
133check_padding "/f" "float" 1
134check_padding "/f" "double" 2
135check_padding "/f" "long_double" 4
136
137#
138# For reference, dump out the entire architecture
139#
140# The output is very long so use a while loop to consume it
141send_gdb "maint print arch\n"
142set ok 1
143while { $ok } {
144    gdb_expect {
145	-re ".*dump" {
146	    #pass "maint print arch $ok"
147	    #set ok [expr $ok + 1]
148	}
149	-re "$gdb_prompt $" {
150	    pass "maint print arch"
151	    set ok 0
152	}
153	timeout {
154	    fail "maint print arch (timeout)"
155	    set ok 0
156	}
157    }
158}
159