blob: a771e6f66598767bd4a842e17ff60dca27803fd3 (
plain)
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
|
# This testcase is part of GDB, the GNU debugger.
#
# Copyright 2019-2024 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/>.
# This test script exposes a bug where, if gdbserver dies while GDB is
# sourcing a python command like 'gdb.execute ("continue")', then GDB
# will deadlock.
load_lib gdbserver-support.exp
standard_testfile multi-ui-errors.c
require allow_gdbserver_tests allow_python_tests
if {[build_executable "failed to prepare" ${testfile} \
${srcfile}] == -1} {
return -1
}
set target_binfile [gdb_remote_download target $binfile]
set host_binfile [gdb_remote_download host $binfile]
# Start gdbserver.
set res [gdbserver_spawn "${target_binfile}"]
set gdbserver_protocol [lindex $res 0]
set gdbserver_gdbport [lindex $res 1]
set gdbserver_pid_check [exp_pid -i $server_spawn_id]
set break_linenr [gdb_get_line_number "@@XX@@ Inferior Starting @@XX@@"]
# Generate a python script we will later source.
set file1 [standard_output_file file1.py]
set fd [open "$file1" w]
puts $fd \
"import gdb
def do_gdb_stuff ():
gdb.execute ('continue')
do_gdb_stuff()"
close $fd
set host_file1 [gdb_remote_download host $file1]
# Now start GDB.
if {[gdb_spawn]} {
fail "spawn"
return
}
gdb_test_multiple "" "initial prompt" {
-re "^$gdb_prompt $" {
pass $gdb_test_name
}
}
gdb_load $binfile
gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport
gdb_test "break $srcfile:$break_linenr"
# Get the gdbserver PID.
set gdbserver_pid 0
gdb_test "continue"
gdb_test_multiple "print server_pid" "get gdbserver PID" {
-re -wrap " = ($decimal)" {
set gdbserver_pid $expect_out(1,string)
pass $gdb_test_name
}
}
if { $gdbserver_pid == 0 } {
return
}
if { ![is_remote target] && $gdbserver_pid != $gdbserver_pid_check } {
error "Failed to get correct gdbserver pid"
}
send_gdb "source $host_file1\n"
# Wait for the inferior to start up.
with_spawn_id $server_spawn_id {
gdb_test_multiple "" "ensure inferior is running" {
-re "@@XX@@ Inferior Starting @@XX@@" {
pass $gdb_test_name
}
timeout {
fail $gdb_test_name
}
}
}
# Now kill the gdbserver.
remote_exec target "kill -9 $gdbserver_pid"
# Wait for GDB to return to a prompt.
gdb_test_multiple "" "landed at prompt after gdbserver dies" {
-re "$gdb_prompt $" {
pass $gdb_test_name
}
timeout {
fail "$gdb_test_name (timeout)"
}
}
# Run a simple command to ensure we can interact with GDB.
gdb_test "echo hello\\n" "hello" "can we interact with gdb"
|
