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

   1 # Copyright 2010-2012 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 set testfile "solib-list"
  31 set srclibfile ${testfile}-lib.c
  32 set srcfile ${testfile}-main.c
  33 set binlibfile ${objdir}/${subdir}/${testfile}.so
  34 set executable ${testfile}
  35 set objfile ${objdir}/${subdir}/${executable}.o
  36 set binfile ${objdir}/${subdir}/${executable}
  37
  38 if { [get_compiler_info unused]
  39      || [gdb_compile_shlib "${srcdir}/${subdir}/${srclibfile}" "${binlibfile}" [list debug ldflags=-Wl,-soname,${binlibfile}]] != ""
  40      || [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${objfile}" object {debug}] != ""
  41      || [gdb_compile "${objfile} ${binlibfile}" "${binfile}" executable {}] != "" } {
  42     untested "could not compile sources"
  43     return -1
  44 }
  45
  46 set interp_system [section_get ${binfile} .interp]
  47 verbose -log "system interpreter is: $interp_system"
  48
  49 foreach nonstop { 0 1 } { with_test_prefix "non-stop $nonstop" {
  50
  51     # clean_restart assumes ${objdir}/${subdir}/ which is not applicable
  52     # for ${interp_system}.
  53     gdb_exit
  54     gdb_start
  55     gdb_reinitialize_dir $srcdir/$subdir
  56     gdb_load ${interp_system}
  57     gdb_load_shlibs ${binfile}
  58     gdb_load_shlibs ${binlibfile}
  59
  60     # Make sure we're disconnected, in case we're testing with an
  61     # extended-remote board, therefore already connected.
  62     gdb_test "disconnect" ".*"
  63
  64     gdb_test "set non-stop $nonstop"
  65     gdb_test "set target-async $nonstop"
  66
  67     # It is required for the non-stop mode, GDB would try to step over
  68     # _dl_debug_state breakpoint will still only ld.so loaded in gdbserver.
  69     # But GDB having symbols from the main executable it would try to use
  70     # displaced-stepping buffer at unmapped that time address _start.
  71     gdb_test "set displaced-stepping off"
  72
  73     set res [gdbserver_spawn ${binfile}]
  74     set gdbserver_protocol [lindex $res 0]
  75     set gdbserver_gdbport [lindex $res 1]
  76
  77     # Load BINFILE after gdbserver_spawn (so that gdbserver executes ld.so)
  78     # but before "target remote" below so that qSymbol data get already
  79     # initialized from BINFILE (and not from ld.so first needing a change to
  80     # BINFILE later).
  81     gdb_test "file ${binfile}" {Reading symbols from .*\.\.\.done\..*} "file binfile" \
  82              {(Are you sure you want to change the file|Load new symbol table from ".*")\? \(y or n\) } "y"
  83
  84     set test "target $gdbserver_protocol"
  85     gdb_test_multiple "target $gdbserver_protocol $gdbserver_gdbport" $test {
  86         -re "Remote debugging using .*\r\n$gdb_prompt " {
  87             # Do not anchor end, there may be more output in non-stop mode.
  88             pass $test
  89         }
  90     }
  91
  92     if $nonstop {
  93         set test "non-stop interior stop"
  94         gdb_test_multiple "" $test {
  95             -re " #1 stopped\\.\r\n" {
  96                 pass $test
  97             }
  98         }
  99     }
 100
 101     gdb_test "continue" "Program received signal SIGUSR1, .*"
 102     gdb_test "sharedlibrary" ".*"
 103     gdb_test "p libvar" " = 23"
 104 }}