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
|
# Copyright (C) 2009-2019 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 GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
# Utility for testing variable values using gdb, invoked via dg-final.
# Call pass if variable has the desired value, otherwise fail.
#
# Argument 0 is the line number on which to put a breakpoint
# Argument 1 is the name of the variable to be checked
# possibly prefixed with type: to get the type of the variable
# instead of the value of the variable (the default).
# Argument 2 is the expected value (or type) of the variable
# When asking for the value, the expected value is produced
# calling print on it in gdb. When asking for the type it is
# the literal string with extra whitespace removed.
# Argument 3 handles expected failures and the like
proc gdb-test { useline args } {
if { ![isnative] || [is_remote target] } { return }
if { [llength $args] >= 4 } {
switch [dg-process-target [lindex $args 3]] {
"S" { }
"N" { return }
"F" { setup_xfail "*-*-*" }
"P" { }
}
}
# This assumes that we are three frames down from dg-test, and that
# it still stores the filename of the testcase in a local variable "name".
# A cleaner solution would require a new DejaGnu release.
upvar 2 name testcase
upvar 2 prog prog
# The command to run on the variable
set arg1 [lindex $args 1]
if { [string equal -length 5 "type:" $arg1] == 1 } {
set command "ptype"
set var [string range $arg1 5 end]
} else {
set command "print"
set var $arg1
}
set line [lindex $args 0]
if { [string range $line 0 0] == "@" } {
set line [string range $line 1 end]
} else {
set line [get-absolute-line $useline $line]
}
set gdb_name $::env(GUALITY_GDB_NAME)
set testname "$testcase line $line [lindex $args 1] == [lindex $args 2]"
set output_file "[file rootname [file tail $prog]].exe"
set cmd_file "[file rootname [file tail $prog]].gdb"
set fd [open $cmd_file "w"]
puts $fd "break $line"
puts $fd "run"
puts $fd "$command $var"
if { $command == "print" } {
# For values, let gdb interpret them by printing them.
puts $fd "print [lindex $args 2]"
} else {
# Since types can span multiple lines, we need an end marker.
puts $fd "echo TYPE_END\\n"
}
puts $fd "quit"
close $fd
send_log "Spawning: $gdb_name -nx -nw -quiet -batch -x $cmd_file ./$output_file\n"
set res [remote_spawn target "$gdb_name -nx -nw -quiet -batch -x $cmd_file ./$output_file"]
if { $res < 0 || $res == "" } {
unsupported "$testname"
file delete $cmd_file
return
}
remote_expect target [timeout_value] {
# Too old GDB
-re "Unhandled dwarf expression|Error in sourced command file|<unknown type in " {
unsupported "$testname"
remote_close target
file delete $cmd_file
return
}
# print var; print expected
-re {[\n\r]\$1 = ([^\n\r]*)[\n\r]+\$2 = ([^\n\r]*)[\n\r]} {
set first $expect_out(1,string)
set second $expect_out(2,string)
if { $first == $second } {
pass "$testname"
} else {
# We need the -- to disambiguate $first from an option,
# as it may be negative.
send_log -- "$first != $second\n"
fail "$testname"
}
remote_close target
file delete $cmd_file
return
}
# ptype var;
-re {[\n\r]type = (.*)[\n\r][\n\r]TYPE_END[\n\r]} {
set type $expect_out(1,string)
# Squash all extra whitespace/newlines that gdb might use for
# "pretty printing" into one so result is just one line.
regsub -all {[\n\r\t ]+} $type " " type
# Old gdb might output "long int" instead of just "long"
# and "short int" instead of just "short". Canonicalize.
regsub -all {\mlong int\M} $type "long" type
regsub -all {\mshort int\M} $type "short" type
set expected [lindex $args 2]
if { $type == $expected } {
pass "$testname"
} else {
send_log -- "$type != $expected\n"
fail "$testname"
}
remote_close target
file delete $cmd_file
return
}
timeout {
unsupported "$testname"
remote_close target
file delete $cmd_file
return
}
}
unsupported "$testname"
remote_close target
file delete $cmd_file
return
}
# Report the gdb path and version log the .log file
# Argument 0 is the gdb path
# Argument 1 is the location where gdb is used
#
proc report_gdb { gdb loc } {
if { [catch { exec which $gdb } msg] } {
send_log "gdb not found in $loc: $msg\n"
return
}
set gdb [exec which $gdb]
send_log "gdb used in $loc: $gdb\n"
send_log "gdb used in $loc: "
if { [catch { exec $gdb -v } gdb_version] } {
send_log "getting version failed:\n"
} else {
send_log "version:\n"
}
send_log -- "---\n$gdb_version\n---\n"
}
# Argument 0 is the option list.
# Return the option list, ensuring that at least -Og is present.
proc guality_minimal_options { args } {
set options [lindex $args 0]
foreach opt $options {
if { [regexp -- "-Og" $opt] } {
return $options
}
}
return [lappend options "-Og"]
}
|
