gdb/testsuite/gdb.server/solib-list.exp

   1 # Copyright 2010-2016 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
  23 load_lib gdbserver-support.exp
  24 load_lib prelink-support.exp
  25
  26 if {[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
  32 if [is_remote target] then {
  33     return
  34 }
  35
  36 standard_testfile solib-list-main.c
  37 set srclibfile ${testfile}-lib.c
  38 set binlibfile [standard_output_file ${testfile}.so]
  39 set executable ${testfile}
  40 set objfile ${binfile}.o
  41
  42 if { [get_compiler_info]
  43      || [gdb_compile_shlib "${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
  50 set interp_system [section_get ${binfile} .interp]
  51 verbose -log "system interpreter is: $interp_system"
  52
  53 foreach 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_shlibs ${binfile}
  61     gdb_load_shlibs ${binlibfile}
  62
  63     # Make sure we're disconnected, in case we're testing with an
  64     # extended-remote board, therefore already connected.
  65     gdb_test "disconnect" ".*"
  66
  67     gdb_test "set non-stop $nonstop"
  68
  69     # It is required for the non-stop mode, GDB would try to step over
  70     # _dl_debug_state breakpoint will still only ld.so loaded in gdbserver.
  71     # But GDB having symbols from the main executable it would try to use
  72     # displaced-stepping buffer at unmapped that time address _start.
  73     gdb_test "set displaced-stepping off"
  74
  75     # Note we pass ${interp_system}, the program gdbserver spawns, as
  76     # argument here, instead of using gdb_load, because we don't want
  77     # to download the interpreter to the target (it's already there)
  78     # or to the test output directory.
  79     set res [gdbserver_spawn "${interp_system} ${binfile}"]
  80     set gdbserver_protocol [lindex $res 0]
  81     set gdbserver_gdbport [lindex $res 1]
  82
  83     # Load BINFILE after gdbserver_spawn (so that gdbserver executes ld.so)
  84     # but before "target remote" below so that qSymbol data get already
  85     # initialized from BINFILE (and not from ld.so first needing a change to
  86     # BINFILE later).
  87     gdb_test "file ${binfile}" {Reading symbols from .*\.\.\.done\..*} "file binfile" \
  88              {(Are you sure you want to change the file|Load new symbol table from ".*")\? \(y or n\) } "y"
  89
  90     set test "target $gdbserver_protocol"
  91     gdb_test_multiple "target $gdbserver_protocol $gdbserver_gdbport" $test {
  92         -re "Remote debugging using .*\r\n$gdb_prompt " {
  93             # Do not anchor end, there may be more output in non-stop mode.
  94             pass $test
  95         }
  96     }
  97
  98     gdb_test "continue" "Program received signal SIGUSR1, .*"
  99     gdb_test "sharedlibrary" ".*"
 100     gdb_test "p libvar" " = 23"
 101 }}