1# Copyright 2010-2015 Free Software Foundation, Inc. 2 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. 7# 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. 12# 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/>. */ 15 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 18# executable. 19# gdbserver :1234 ld-linux-x86-64.so.2 /bin/prog 20# gdb /bin/prog 21# (gdb) target remote ... 22 23load_lib gdbserver-support.exp 24load_lib prelink-support.exp 25 26if {[skip_gdbserver_tests] || [skip_shlib_tests]} { 27 return 28} 29 30# This test case (currently) does not support remote targets, since it 31# assumes the ELF interpreter can be found on the host system 32if [is_remote target] then { 33 return 34} 35 36standard_testfile solib-list-main.c 37set srclibfile ${testfile}-lib.c 38set binlibfile [standard_output_file ${testfile}.so] 39set executable ${testfile} 40set objfile ${binfile}.o 41 42if { [get_compiler_info] 43 || [gdb_compile_shlib "${srcdir}/${subdir}/${srclibfile}" "${binlibfile}" [list debug ldflags=-Wl,-soname,${binlibfile}]] != "" 44 || [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${objfile}" object {debug}] != "" 45 || [gdb_compile "${objfile} ${binlibfile}" "${binfile}" executable {}] != "" } { 46 untested "could not compile sources" 47 return -1 48} 49 50set interp_system [section_get ${binfile} .interp] 51verbose -log "system interpreter is: $interp_system" 52 53foreach nonstop { 0 1 } { with_test_prefix "non-stop $nonstop" { 54 55 # clean_restart assumes ${objdir}/${subdir}/ which is not applicable 56 # for ${interp_system}. 57 gdb_exit 58 gdb_start 59 gdb_reinitialize_dir $srcdir/$subdir 60 gdb_load ${interp_system} 61 gdb_load_shlibs ${binfile} 62 gdb_load_shlibs ${binlibfile} 63 64 # Make sure we're disconnected, in case we're testing with an 65 # extended-remote board, therefore already connected. 66 gdb_test "disconnect" ".*" 67 68 gdb_test "set non-stop $nonstop" 69 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" 75 76 set res [gdbserver_spawn ${binfile}] 77 set gdbserver_protocol [lindex $res 0] 78 set gdbserver_gdbport [lindex $res 1] 79 80 # Load BINFILE after gdbserver_spawn (so that gdbserver executes ld.so) 81 # but before "target remote" below so that qSymbol data get already 82 # initialized from BINFILE (and not from ld.so first needing a change to 83 # BINFILE later). 84 gdb_test "file ${binfile}" {Reading symbols from .*\.\.\.done\..*} "file binfile" \ 85 {(Are you sure you want to change the file|Load new symbol table from ".*")\? \(y or n\) } "y" 86 87 set test "target $gdbserver_protocol" 88 gdb_test_multiple "target $gdbserver_protocol $gdbserver_gdbport" $test { 89 -re "Remote debugging using .*\r\n$gdb_prompt " { 90 # Do not anchor end, there may be more output in non-stop mode. 91 pass $test 92 } 93 } 94 95 if $nonstop { 96 set test "non-stop interior stop" 97 gdb_test_multiple "" $test { 98 -re " #1 stopped\\.\r\n" { 99 pass $test 100 } 101 } 102 } 103 104 gdb_test "continue" "Program received signal SIGUSR1, .*" 105 gdb_test "sharedlibrary" ".*" 106 gdb_test "p libvar" " = 23" 107}} 108