gdb/testsuite/gdb.threads/execl.exp

   1 # Copyright (C) 2008-2020 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 # Test handling of threads across an execl.
  17
  18 # Original image, loads a thread library.
  19 standard_testfile
  20
  21 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  22     return -1
  23 }
  24
  25 # New image, that does not load a thread library.
  26 set testfile1 "execl1"
  27 set srcfile1 ${testfile1}.c
  28 set binfile1 [standard_output_file ${testfile1}]
  29
  30 if {[gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile1}" executable {debug}] != "" } {
  31     return -1
  32 }
  33
  34 clean_restart ${binfile}
  35
  36 runto_main
  37
  38 gdb_test "b [gdb_get_line_number "breakpoint here"]" \
  39          ".*Breakpoint .*execl.*" "set breakpoint at execl"
  40
  41 gdb_test "continue" ".*breakpoint here.*" "continue to exec"
  42
  43 gdb_test "info threads" "1 *Thread.*2 *Thread.*3 *Thread.*" "info threads before exec"
  44
  45 # Work around PR25656, where the breakpoint above sets 2 breakpoint locations:
  46 # - one on gdb.threads/execl.c:$linenumber, and
  47 # - one in GLIBC's execl.c:$linenumber, in __GI_execl
  48 # Delete the breakpoint to make sure we hit main upon continue, rather than
  49 # __GI_execl.
  50 gdb_test_no_output "delete 2"
  51
  52 # When continuing from this point we'll hit the breakpoint in main()
  53 # again, this time in the exec'd process.
  54 gdb_test "continue" ".*Breakpoint 1, main.*" \
  55     "continue across exec"
  56
  57 gdb_test "info threads" ".*" "info threads after exec"
  58
  59 set test "info threads after exec"
  60 gdb_test_multiple "info threads" "$test" {
  61     -re "2 *Thread .*$gdb_prompt $" {
  62         # Old threads left behind.
  63         fail "$test"
  64     }
  65     -re "4 *Thread .*$gdb_prompt $" {
  66         # New threads registered.
  67         fail "$test"
  68     }
  69     -re "$gdb_prompt $" {
  70         # Target doesn't register the main thread, pass for now.
  71         pass "$test"
  72     }
  73 }
  74
  75 gdb_continue_to_end