1# This testcase is part of GDB, the GNU debugger.
2
3# Copyright 2000, 2002, 2003, 2004 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 2 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, write to the Free Software
17# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
19if [target_info exists gdb,noinferiorio] {
20    verbose "Skipping fileio.exp because of no fileio capabilities."
21    continue
22}
23
24if $tracelevel {
25    strace $tracelevel
26}
27
28#
29# test running programs
30#
31set prms_id 0
32set bug_id 0
33
34set testfile "sizeof"
35set srcfile ${testfile}.c
36set binfile ${objdir}/${subdir}/${testfile}
37if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
38     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
39}
40
41if [get_compiler_info ${binfile}] {
42    return -1;
43}
44
45gdb_exit
46gdb_start
47gdb_reinitialize_dir $srcdir/$subdir
48gdb_load ${binfile}
49
50#
51# set it up at a breakpoint so we can play with the variable values
52#
53
54if ![runto_main] then {
55    perror "couldn't run to breakpoint"
56    continue
57}
58
59#
60# Query GDB for the size of various types
61#
62
63proc get_valueof { fmt exp default } {
64    global gdb_prompt
65
66    set test "get valueof \"${exp}\""
67    set val ${default}
68    gdb_test_multiple "print${fmt} ${exp}" "$test" {
69	-re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" {
70	    set val $expect_out(1,string)
71	    pass "$test ($val)"
72	}
73    }
74    return ${val}
75}
76
77proc get_sizeof { type default } {
78    return [get_valueof "/d" "sizeof (${type})" $default]
79}
80
81gdb_test "next"
82
83set sizeof_char [get_sizeof "char" 1]
84set sizeof_short [get_sizeof "short" 2]
85set sizeof_int [get_sizeof "int" 4]
86set sizeof_long [get_sizeof "long" 4]
87set sizeof_long_long [get_sizeof "long long" 8]
88
89set sizeof_data_ptr [get_sizeof "void *" 4]
90set sizeof_func_ptr [get_sizeof "void (*)(void)" 4]
91
92set sizeof_float [get_sizeof "float" 4]
93set sizeof_double [get_sizeof "double" 8]
94set sizeof_long_double [get_sizeof "long double" 8]
95
96#
97# Compare GDB's idea of types with the running program
98#
99
100proc check_sizeof { type size } {
101    global gdb_prompt
102
103    set pat [string_to_regexp "sizeof (${type}) == ${size}"]
104    gdb_test "next" "${pat}\[\r\n\]+\[0-9\].*"  "check sizeof \"$type\""
105}
106
107check_sizeof "char" ${sizeof_char}
108check_sizeof "short" ${sizeof_short}
109check_sizeof "int" ${sizeof_int}
110check_sizeof "long" ${sizeof_long}
111check_sizeof "long long" ${sizeof_long_long}
112
113check_sizeof "void *" ${sizeof_data_ptr}
114check_sizeof "void (*)(void)" ${sizeof_func_ptr}
115
116check_sizeof "float" ${sizeof_float}
117check_sizeof "double" ${sizeof_double}
118check_sizeof "long double" ${sizeof_long_double}
119
120proc check_valueof { exp val } {
121    global gdb_prompt
122
123    set pat [string_to_regexp "valueof (${exp}) == ${val}"]
124    gdb_test "next" "${pat}\[\r\n\]+\[0-9\].*" "check valueof \"$exp\""
125}
126
127# Check that GDB and the target agree over the sign of a character.
128
129set signof_byte [get_valueof "/d" "'\\377'" -1]
130set signof_char [get_valueof "/d" "(int) (char) -1" -1]
131set signof_signed_char [get_valueof "/d" "(int) (signed char) -1" -1]
132set signof_unsigned_char [get_valueof "/d" "(int) (unsigned char) -1" -1]
133
134check_valueof "'\\\\377'" ${signof_byte}
135check_valueof "(int) (char) -1" ${signof_char}
136check_valueof "(int) (signed char) -1" ${signof_signed_char}
137check_valueof "(int) (unsigned char) -1" ${signof_unsigned_char}
138
139proc check_padding { fmt type val } {
140    global gdb_prompt
141    gdb_test "set padding_${type}.v = ${val}"
142    gdb_test "print padding_${type}.p1" "= \"The quick brown \""
143    gdb_test "print${fmt} padding_${type}.v" "= ${val}"
144    gdb_test "print padding_${type}.p2" "\"The quick brown \".*"
145}
146
147# Check that GDB is managing to store a value in a struct field
148# without corrupting the fields immediately adjacent to it.
149
150check_padding "/d" "char" 1
151check_padding "/d" "short" 2
152check_padding "/d" "int" 4
153check_padding "/d" "long" 4
154check_padding "/d" "long_long" 8
155
156# use multiples of two which can be represented exactly
157check_padding "/f" "float" 1
158check_padding "/f" "double" 2
159check_padding "/f" "long_double" 4
160
161#
162# For reference, dump out the entire architecture
163#
164# The output is very long so use a while loop to consume it
165send_gdb "maint print arch\n"
166set ok 1
167while { $ok } {
168    gdb_expect {
169	-re ".*dump" {
170	    #pass "maint print arch $ok"
171	    #set ok [expr $ok + 1]
172	}
173	-re "$gdb_prompt $" {
174	    pass "maint print arch"
175	    set ok 0
176	}
177	timeout {
178	    fail "maint print arch (timeout)"
179	    set ok 0
180	}
181    }
182}
183