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
|
# This testcase is part of GDB, the GNU debugger.
#
# Copyright 2024-2025 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/>.
# Setup a .build-id/ based debug directory containing multiple entries
# for the same build-id, with each entry given a different sequence
# number.
#
# Ensure that GDB will scan over broken symlinks for the same build-id
# (but different sequence number) to find later working symlinks.
#
# This test only places debug information on the host, so it is always
# local to GDB.
require {!is_remote host}
standard_testfile
if {[build_executable "failed to prepare" $testfile $srcfile \
{debug build-id}] == -1} {
return -1
}
# Split out BINFILE.debug. Remove debug from BINFILE.
if {[gdb_gnu_strip_debug $binfile] != 0} {
return -1
}
# Get the '.build-id/xx/xxx...xxx' part of the filename.
set build_id_filename [build_id_debug_filename_get $binfile]
# Hide (rename) BINFILE.debug, this should ensure GDB can't find it
# directly but needs to look for the build-id based file in the debug
# directory.
set hidden_debuginfo [standard_output_file "hidden_$testfile.debug"]
remote_exec build "mv ${binfile}.debug $hidden_debuginfo"
# A filename that doesn't exist. Some symlinks will point at this
# file.
set missing_debuginfo [host_standard_output_file "missing_debuginfo"]
# Create the debug directory, and the .build-id directory structure
# within it.
set debugdir [host_standard_output_file "debug"]
remote_exec host "mkdir -p $debugdir/[file dirname $build_id_filename]"
set host_hidden_debuginfo [gdb_remote_download host $hidden_debuginfo]
remote_exec host "ln -fs $host_hidden_debuginfo $debugdir/$build_id_filename"
# Start GDB and load global BINFILE. If FIND_DEBUGINFO is true then
# we expect GDB to find the debug information matching BINFILE,
# otherwise, we expect GDB not to find the debug information.
proc load_binfile_check_debug_is_found { find_debuginfo testname } {
with_test_prefix "$testname" {
clean_restart
gdb_test_no_output "set debug-file-directory $::debugdir" \
"set debug-file-directory"
gdb_file_cmd $::binfile
if { $find_debuginfo } {
gdb_assert { [regexp [string_to_regexp \
"Reading symbols from $::hidden_debuginfo..."] \
$::gdb_file_cmd_msg] } \
"debuginfo was read via build-id"
} else {
gdb_assert { [regexp "\\(No debugging symbols found in \[^\r\n\]+/$::testfile\\)" \
$::gdb_file_cmd_msg] } \
}
}
}
# Return a copy of FILENAME, which should end '.debug', with NUMBER
# added, e.g. add_seqno 1 "foo.debug" --> "foo.1.debug".
proc add_seqno { number filename } {
return [regsub "\.debug\$" $filename ".${number}.debug"]
}
load_binfile_check_debug_is_found true \
"find debuginfo with a single build-id file"
remote_exec host "ln -fs $host_hidden_debuginfo \
$debugdir/[add_seqno 1 $build_id_filename]"
remote_exec host "ln -fs $host_hidden_debuginfo \
$debugdir/[add_seqno 2 $build_id_filename]"
remote_exec host "ln -fs $host_hidden_debuginfo \
$debugdir/[add_seqno 3 $build_id_filename]"
load_binfile_check_debug_is_found true \
"find debuginfo with 4 build-id files"
remote_exec host "ln -fs $missing_debuginfo $debugdir/$build_id_filename"
load_binfile_check_debug_is_found true \
"find debuginfo, first build-id file is bad"
remote_exec host "ln -fs $missing_debuginfo \
$debugdir/[add_seqno 1 $build_id_filename]"
remote_exec host "ln -fs $missing_debuginfo \
$debugdir/[add_seqno 3 $build_id_filename]"
load_binfile_check_debug_is_found true \
"find debuginfo, first 2 build-id files are bad"
remote_exec host "ln -fs $missing_debuginfo \
$debugdir/[add_seqno 2 $build_id_filename]"
load_binfile_check_debug_is_found false \
"cannot find debuginfo, all build-id files are bad"
remote_exec host "ln -fs $host_hidden_debuginfo \
$debugdir/[add_seqno 3 $build_id_filename]"
load_binfile_check_debug_is_found true \
"find debuginfo, last build-id file is good"
remote_exec host "rm -f $debugdir/[add_seqno 1 $build_id_filename]"
load_binfile_check_debug_is_found false \
"cannot find debuginfo, file with seqno 1 is missing"
|
