gdb/testsuite/gdb.reverse/recvmsg-reverse.exp

   1 # Copyright 2015-2023 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 # This file is part of the gdb testsuite.
  17
  18 #
  19 # This test tests socketpair and recvmsg syscalls for reverse execution.
  20 #
  21
  22 require supports_reverse
  23
  24 standard_testfile
  25
  26 if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
  27     return -1
  28 }
  29
  30 runto_main
  31
  32 if [supports_process_record] {
  33     # Activate process record/replay
  34     gdb_test_no_output "record" "turn on process record"
  35 }
  36
  37 gdb_test "break marker2" \
  38     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
  39     "set breakpoint at marker2"
  40
  41 gdb_continue_to_breakpoint "marker2" ".*$srcfile:.*"
  42
  43 gdb_test "break marker1" \
  44     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
  45     "set breakpoint at marker1"
  46
  47 gdb_test "reverse-continue" ".*$srcfile:$decimal.*" "reverse to marker1"
  48
  49 # If the variables were recorded properly on syscall, the old contents will
  50 # be remembered.  If not, new contents will be used, and the test will fail.
  51
  52 # rdata should be "xxxx", not "cdab"
  53 gdb_test "print rdata" ".* = \"xxxx\"" "check recvmsg record - rdata"
  54
  55 # rmsg.msg_flags should be zeros, not MSG_TRUNC | MSG_CTRUNC
  56 gdb_test "print rmsg.msg_flags" ".* = 0" \
  57     "check recvmsg record - rmsg.msg_flags"
  58
  59 # rmsg.msg_controllen should be sizeof rc, not actual size of control data
  60 # (7 bytes less)
  61 gdb_test "print rmsg.msg_controllen - sizeof rc" ".* = 0" \
  62     "check recvmsg record - rmsg.msg_controllen"
  63
  64 # rc should be zeros, not received cmsg
  65 gdb_test "print ((struct cmsghdr *)rc)->cmsg_len" ".* = 0" "check recvmsg record - cmsg"