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
|
# Copyright 2002, 2003, 2005, 2007, 2008, 2009, 2010, 2011
# 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/>. */
# relocate.exp -- Expect script to test loading symbols from unrelocated
# object files.
if $tracelevel then {
strace $tracelevel
}
set testfile relocate
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}.o
remote_exec build "rm -f ${binfile}"
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" object {debug}] != "" } {
untested relocate.exp
return -1
}
proc get_var_address { var } {
global gdb_prompt hex
# Match output like:
# $1 = (int *) 0x0
# $5 = (int (*)()) 0
# $6 = (int (*)()) 0x24 <function_bar>
gdb_test_multiple "print &${var}" "get address of ${var}" {
-re "\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $" {
pass "get address of ${var}"
if { $expect_out(1,string) == "0" } {
return "0x0"
} else {
return $expect_out(1,string)
}
}
}
return ""
}
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
# Load the object file.
gdb_test "add-symbol-file ${binfile} 0" \
"Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
"add-symbol-file ${testfile}.o 0" \
"add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x0\[\r\n\]+\\(y or n\\) " \
"y"
# Print the addresses of static variables.
set static_foo_addr [get_var_address static_foo]
set static_bar_addr [get_var_address static_bar]
# Make sure they have different addresses.
if { "${static_foo_addr}" == "${static_bar_addr}" } {
fail "static variables have different addresses"
} else {
pass "static variables have different addresses"
}
# Print the addresses of global variables.
set global_foo_addr [get_var_address global_foo]
set global_bar_addr [get_var_address global_bar]
# Make sure they have different addresses.
if { "${global_foo_addr}" == "${global_bar_addr}" } {
fail "global variables have different addresses"
} else {
pass "global variables have different addresses"
}
# Print the addresses of functions.
set function_foo_addr [get_var_address function_foo]
set function_bar_addr [get_var_address function_bar]
# Make sure they have different addresses.
if { "${function_foo_addr}" == "${function_bar_addr}" } {
fail "functions have different addresses"
} else {
pass "functions have different addresses"
}
# Now use a variable as an offset to add-symbol-file, and check that
# the functions' addresses change.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_test_no_output "set \$offset = 0x10000"
# Load the object file.
gdb_test "add-symbol-file ${binfile} \$offset" \
"Reading symbols from .*${testfile}\\.o\\.\\.\\.done\\.(|\r\nUsing host libthread_db library .*libthread_db.so.*\\.)" \
"add-symbol-file ${testfile}.o \$offset" \
"add symbol table from file \".*${testfile}\\.o\" at\[ \t\r\n\]+\.text_addr = 0x10000\[\r\n\]+\\(y or n\\) " \
"y"
# Print the addresses of functions.
set new_function_foo_addr [get_var_address function_foo]
# Make sure they have different addresses.
if { "${function_foo_addr}" == "${new_function_foo_addr}" } {
fail "function foo has a different address"
} else {
pass "function foo has a different address"
}
# Now try loading the object as an exec-file; we should be able to print
# the values of variables after we do this.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_file_cmd ${binfile}
# Check the values of the variables.
gdb_test "print static_foo" "\\\$$decimal = 1"
gdb_test "print static_bar" "\\\$$decimal = 2"
gdb_test "print global_foo" "\\\$$decimal = 3"
gdb_test "print global_bar" "\\\$$decimal = 4"
|
