1 # Copyright 2010-2024 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>. */
16 # In some cases gdbserver cannot find the DT_DEBUG library list on its own and
17 # it needs to fall back to GDB solib-svr4.c look up via symbols from the main
19 # gdbserver :1234 ld-linux-x86-64.so.2 /bin/prog
21 # (gdb) target remote ...
23 load_lib gdbserver-support.exp
24 load_lib prelink-support.exp
26 require allow_gdbserver_tests allow_shlib_tests
28 standard_testfile solib-list-main.c
29 set srclibfile ${testfile}-lib.c
30 set binlibfile [standard_output_file ${testfile}.so]
32 if { [gdb_compile_shlib "${srcdir}/${subdir}/${srclibfile}" "${binlibfile}" {debug}] != ""
33 || [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable "shlib=${binlibfile} build-id"] != "" } {
34 untested "failed to compile"
38 set interp_system [section_get ${binfile} .interp]
39 verbose -log "system interpreter is: $interp_system"
41 foreach nonstop { 0 1 } { with_test_prefix "non-stop $nonstop" {
42 save_vars { GDBFLAGS } {
43 # If GDB and GDBserver are both running locally, set the sysroot to avoid
44 # reading files via the remote protocol.
45 if { ![is_remote host] && ![is_remote target] } {
46 set GDBFLAGS "$GDBFLAGS -ex \"set sysroot\""
52 gdb_load_shlib ${binlibfile}
54 set target_binfile [gdb_remote_download target $binfile]
55 set host_binfile [gdb_remote_download host $binfile]
57 # When testing remote, the file path we receive may be only the file name,
58 # "solib-list". ld-linux doesn't seem to be able to find the file when
59 # passing just the file name, it wants either the absolute path or a
60 # relative path with at least one directory component. Calling readlink on
61 # the target to get the full path will make it happy.
62 set target_binfile [lindex [remote_exec target "readlink -f $target_binfile"] 1]
64 # Make sure we're disconnected, in case we're testing with an
65 # extended-remote board, therefore already connected.
66 gdb_test "disconnect" ".*"
68 gdb_test "set non-stop $nonstop"
70 # It is required for the non-stop mode, GDB would try to step over
71 # _dl_debug_state breakpoint will still only ld.so loaded in gdbserver.
72 # But GDB having symbols from the main executable it would try to use
73 # displaced-stepping buffer at unmapped that time address _start.
74 gdb_test "set displaced-stepping off"
76 # Unset last_loaded_file because we want GDBserver spawn
77 # ${interp_system} not ${last_loaded_file}.
78 global last_loaded_file
79 unset -nocomplain last_loaded_file
81 # Note we pass ${interp_system}, the program gdbserver spawns, as
82 # argument here, instead of using gdb_load, because we don't want
83 # to download the interpreter to the target (it's already there)
84 # or to the test output directory.
85 set res [gdbserver_spawn "${interp_system} ${target_binfile}"]
86 set gdbserver_protocol [lindex $res 0]
87 set gdbserver_gdbport [lindex $res 1]
89 # Load BINFILE after gdbserver_spawn (so that gdbserver executes ld.so)
90 # but before "target remote" below so that qSymbol data get already
91 # initialized from BINFILE (and not from ld.so first needing a change to
93 gdb_test "file ${host_binfile}" {Reading symbols from .*\.\.\..*} "file binfile"
95 set test "target $gdbserver_protocol"
97 set new_symbol_table 0
98 gdb_test_multiple "target $gdbserver_protocol $gdbserver_gdbport" $test {
99 -re "Remote debugging using" {
103 -re {.*Load new symbol table from ".*"\? \(y or n\) } {
104 set new_symbol_table 1
105 send_gdb "y\n" answer
108 -re ".*\r\n$gdb_prompt " {
109 # Do not anchor end, there may be more output in non-stop mode.
117 gdb_assert {$new_symbol_table == 1}
119 gdb_test "continue" "Program received signal SIGUSR1, .*"
120 gdb_test "sharedlibrary" ".*"
121 gdb_test "p libvar" " = 23"