gdb/testsuite/gdb.threads/dlopen-libpthread.exp

   1 # Copyright 2011-2023 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 if {![isnative] || ![istarget *-linux*] || [skip_shlib_tests]} {
  17     return 0
  18 }
  19
  20 load_lib prelink-support.exp
  21
  22 set testfile "dlopen-libpthread"
  23 set srcmainfile ${testfile}.c
  24 set srclibfile ${testfile}-lib.c
  25 set executable ${testfile}
  26 set binfile_lib [standard_output_file ${executable}.so]
  27 set lib_dlopen [shlib_target_file ${executable}.so]
  28
  29 # Use build_executable_own_libs as prelinked libpthread.so can produce false
  30 # PASS - it is OK if GDB processes it still before relocation.
  31
  32 set relink_args [build_executable_own_libs ${testfile}.exp ${executable}.so $srclibfile {debug shlib_pthreads} no]
  33 if {$relink_args == "" || ![prelink_no $relink_args]
  34     || [prepare_for_testing "failed to prepare" ${executable} ${srcmainfile} {debug shlib_load}] } {
  35     return -1
  36 }
  37 gdb_load_shlib $binfile_lib
  38
  39 if { ![runto_main] } {
  40     return -1
  41 }
  42
  43 set probe_names {}
  44 # Fedora 17 name.  There's specific code in
  45 # svr4_find_and_create_probe_breakpoints to deal with this.
  46 lappend probe_names rtld_map_complete
  47 # Upstream name.
  48 lappend probe_names map_complete
  49
  50 set have_probe 0
  51 foreach probe_name $probe_names {
  52     set cmd "info probes all rtld ^$probe_name$"
  53     gdb_test_multiple $cmd "" {
  54         -re -wrap "\[ \t\]$probe_name\[ \t\]+0x\[0-9a-f\]+.*" {
  55             set have_probe 1
  56         }
  57         -re -wrap "No probes matched\\." {
  58         }
  59     }
  60 }
  61
  62 if { !$have_probe } {
  63     untested "no matching probes"
  64 }
  65
  66 set test "libpthread.so not found"
  67 gdb_test_multiple "info sharedlibrary" $test {
  68     -re "/libpthread\\.so.*\r\n$gdb_prompt $" {
  69         # With newer glibc, libpthread has been integrated into glibc so we
  70         # can expect it to be already loaded at main.  This means we no longer
  71         # excercise the scenario we're trying to trigger, but continue
  72         # nevertheless.
  73         unsupported $test
  74     }
  75     -re "/libc\\.so.*\r\n$gdb_prompt $" {
  76         pass $test
  77     }
  78 }
  79
  80 gdb_test "set variable filename=\"$lib_dlopen\""
  81
  82 gdb_breakpoint "notify"
  83
  84 # The error was:
  85 # Cannot find new threads: generic error
  86 gdb_continue_to_breakpoint "notify" ".* notify-here .*"
  87
  88 gdb_test "info sharedlibrary" {/libpthread\.so.*} "libpthread.so found"