1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
# This testcase is part of GDB, the GNU debugger.
# Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010
# Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
if $tracelevel {
strace $tracelevel
}
#
# test running programs
#
set testfile "store"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
untested store.exp
return -1
}
if [get_compiler_info ${binfile}] {
return -1;
}
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
#
# set it up at a breakpoint so we can play with the variable values
#
if ![runto_main] then {
perror "couldn't run to breakpoint"
continue
}
#
proc check_set { t l r new add } {
set prefix "var ${t} l"
gdb_test "tbreak wack_${t}"
gdb_test "continue" "register ${t} l = u, r = v;" \
"continue to wack_${t}"
gdb_test "next" "l = add_${t} .l, r.;" \
"${prefix}; next ${t}"
gdb_test "print l" " = ${l}" \
"${prefix}; print old l, expecting ${l}"
gdb_test "print r" " = ${r}" \
"${prefix}; print old r, expecting ${r}"
gdb_test "set variable l = 4" "" \
"${prefix}; setting l to 4"
gdb_test "print l" " = ${new}" \
"${prefix}; print new l, expecting ${new}"
gdb_test "next" "return l \\+ r;" \
"${prefix}; next over add call"
gdb_test "print l" " = ${add}" \
"${prefix}; print incremented l, expecting ${add}"
}
check_set "charest" "-1 .*" "-2 .*" "4 ..004." "2 ..002."
check_set "short" "-1" "-2" "4" "2"
check_set "int" "-1" "-2" "4" "2"
check_set "long" "-1" "-2" "4" "2"
check_set "longest" "-1" "-2" "4" "2"
check_set "float" "-1" "-2" "4" "2"
check_set "double" "-1" "-2" "4" "2"
check_set "doublest" "-1" "-2" "4" "2"
#
proc up_set { t l r new } {
set prefix "upvar ${t} l"
gdb_test "tbreak add_${t}"
gdb_test "continue" "return u . v;" \
"continue to add_${t}"
gdb_test "up" "l = add_${t} .l, r.;" \
"${prefix}; up"
gdb_test "print l" " = ${l}" \
"${prefix}; print old l, expecting ${l}"
gdb_test "print r" " = ${r}" \
"${prefix}; print old r, expecting ${r}"
gdb_test "set variable l = 4" "" \
"${prefix}; set l to 4"
gdb_test "print l" " = ${new}" \
"${prefix}; print new l, expecting ${new}"
}
up_set "charest" "-1 .*" "-2 .*" "4 ..004."
up_set "short" "-1" "-2" "4"
up_set "int" "-1" "-2" "4"
up_set "long" "-1" "-2" "4"
up_set "longest" "-1" "-2" "4"
up_set "float" "-1" "-2" "4"
up_set "double" "-1" "-2" "4"
up_set "doublest" "-1" "-2" "4"
#
proc check_struct { t old new } {
set prefix "var struct ${t} u"
gdb_test "tbreak wack_struct_${t}"
gdb_test "continue" "int i; register struct s_${t} u = z_${t};" \
"continue to wack_struct_${t}"
gdb_test "next 2" "add_struct_${t} .u.;" \
"${prefix}; next to add_struct_${t} call"
gdb_test "print u" " = ${old}" \
"${prefix}; print old u, expecting ${old}"
gdb_test "set variable u = s_${t}" "" \
"${prefix}; set u to s_${t}"
gdb_test "print u" " = ${new}" \
"${prefix}; print new u, expecting ${new}"
}
check_struct "1" "{s = \\{0}}" "{s = \\{1}}"
check_struct "2" "{s = \\{0, 0}}" "{s = \\{1, 2}}"
check_struct "3" "{s = \\{0, 0, 0}}" "{s = \\{1, 2, 3}}"
check_struct "4" "{s = \\{0, 0, 0, 0}}" "{s = \\{1, 2, 3, 4}}"
proc up_struct { t old new } {
set prefix "up struct ${t} u"
gdb_test "tbreak add_struct_${t}"
gdb_test "continue" "for .i = 0; i < sizeof .s. / sizeof .s.s.0..; i..." \
"continue to add_struct_${t}"
gdb_test "up" "u = add_struct_${t} .u.;" \
"${prefix}; up"
gdb_test "print u" " = ${old}" \
"${prefix}; print old u, expecting ${old}"
gdb_test "set variable u = s_${t}" "" \
"${prefix}; set u to s_${t}"
gdb_test "print u" " = ${new}" \
"${prefix}; print new u, expecting ${new}"
}
up_struct "1" "{s = \\{0}}" "{s = \\{1}}"
up_struct "2" "{s = \\{0, 0}}" "{s = \\{1, 2}}"
up_struct "3" "{s = \\{0, 0, 0}}" "{s = \\{1, 2, 3}}"
up_struct "4" "{s = \\{0, 0, 0, 0}}" "{s = \\{1, 2, 3, 4}}"
#
proc check_field { t } {
global gdb_prompt
gdb_test "tbreak wack_field_${t}"
gdb_test "continue" "register struct f_${t} u = f_${t};" \
"continue field ${t}"
# Match either the return statement, or the line immediatly after
# it. The compiler can end up merging the return statement into
# the return instruction.
gdb_test "next" "(return u;|\})" "next field ${t}"
gdb_test "print u" " = {i = 1, j = 1, k = 1}" "old field ${t}"
gdb_test "set variable u = F_${t}"
gdb_test "print u" " = {i = 0, j = 0, k = 0}" "new field ${t}"
gdb_test "set variable u = F_${t}, u.i = f_${t}.i"
gdb_test "print u" " = {i = 1, j = 0, k = 0}" "f_${t}.i"
gdb_test "set variable u = F_${t}, u.j = f_${t}.j"
gdb_test "print u" " = {i = 0, j = 1, k = 0}" "f_${t}.j"
gdb_test "set variable u = F_${t}, u.k = f_${t}.k"
gdb_test "print u" " = {i = 0, j = 0, k = 1}" "f_${t}.k"
gdb_test "set variable u = f_${t}, u.i = F_${t}.i"
gdb_test "print u" " = {i = 0, j = 1, k = 1}" "F_${t}.i"
gdb_test "set variable u = f_${t}, u.j = F_${t}.j"
gdb_test "print u" " = {i = 1, j = 0, k = 1}" "F_${t}.j"
gdb_test "set variable u = f_${t}, u.k = F_${t}.k"
gdb_test "print u" " = {i = 1, j = 1, k = 0}" "F_${t}.k"
}
check_field 1
check_field 2
check_field 3
check_field 4
#
# WANTED: A fairly portable way of convincing the compiler to split a
# value across memory and registers.
|
