# This testcase is part of GDB, the GNU debugger.
#
# Copyright 2013-2015 Free Software Foundation, Inc.
#
# Contributed by Intel Corp. <markus.t.metzger@intel.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# check for btrace support
if { [skip_btrace_tests] } { return -1 }

# start inferior
standard_testfile
if {[gdb_compile_pthreads "$srcdir/$subdir/$srcfile" "$binfile" executable {debug}] != "" } {
    return -1
}
clean_restart $testfile

if ![runto_main] {
    return -1
}

# set up breakpoints
set bp_1 [gdb_get_line_number "bp.1" $srcfile]
set bp_2 [gdb_get_line_number "bp.2" $srcfile]
set bp_3 [gdb_get_line_number "bp.3" $srcfile]

proc gdb_cont_to_line { line } {
	gdb_breakpoint $line
	gdb_continue_to_breakpoint "cont to $line" ".*$line\r\n.*"
	delete_breakpoints
}

# trace the code between the two breakpoints
delete_breakpoints
gdb_cont_to_line $srcfile:$bp_1
# make sure GDB knows about the new thread
gdb_test "info threads" ".*"
gdb_test_no_output "record btrace"
gdb_cont_to_line $srcfile:$bp_2

# navigate in the trace history for both threads
with_test_prefix "navigate" {
  gdb_test "thread 1" ".*"
  with_test_prefix "thread 1" {
    gdb_test "record goto begin" ".*"
    gdb_test "info record" ".*Replay in progress\.  At instruction 1\."
  }
  gdb_test "thread 2" ".*"
  with_test_prefix "thread 2" {
    gdb_test "record goto begin" ".*"
    gdb_test "info record" ".*Replay in progress\.  At instruction 1\."
  }
}

# step both threads
with_test_prefix "step" {
  gdb_test "thread 1" ".*"
  with_test_prefix "thread 1" {
    gdb_test "info record" ".*Replay in progress\.  At instruction 1\."
    gdb_test "stepi" ".*"
    gdb_test "info record" ".*Replay in progress\.  At instruction 2\."
  }
  gdb_test "thread 2" ".*"
  with_test_prefix "thread 2" {
    gdb_test "info record" ".*Replay in progress\.  At instruction 1\."
    gdb_test "stepi" ".*"
    gdb_test "info record" ".*Replay in progress\.  At instruction 2\."
  }
}

# run to the end of the history for both threads
with_test_prefix "cont" {
  gdb_test "thread 1" ".*"
  with_test_prefix "thread 1" {
    gdb_test "info record" ".*Replay in progress\.  At instruction 2\."
    gdb_test "continue" "No more reverse-execution history.*"
  }
  gdb_test "thread 2" ".*"
  with_test_prefix "thread 2" {
    gdb_test "info record" ".*Replay in progress\.  At instruction 2\."
    gdb_test "continue" "No more reverse-execution history.*"
  }
}

# reverse-step both threads
with_test_prefix "reverse-step" {
  gdb_test "thread 1" ".*"
  with_test_prefix "thread 1" {
    gdb_test "reverse-stepi" ".*"
    gdb_test "info record" ".*Replay in progress\..*"
  }
  gdb_test "thread 2" ".*"
  with_test_prefix "thread 2" {
    gdb_test "reverse-stepi" ".*"
    gdb_test "info record" ".*Replay in progress\..*"
  }
}

# both threads are still replaying
with_test_prefix "check" {
  gdb_test "thread 1" ".*"
  with_test_prefix "thread 1" {
    gdb_test "info record" ".*Replay in progress\..*"
  }
  gdb_test "thread 2" ".*"
  with_test_prefix "thread 2" {
    gdb_test "info record" ".*Replay in progress\..*"
  }
}

# navigate back into the history for thread 1 and continue thread 2
with_test_prefix "cont" {
  gdb_test "thread 1" ".*"
  with_test_prefix "thread 1" {
    gdb_test "record goto begin" ".*"
    gdb_test "info record" ".*Replay in progress\.  At instruction 1\."
  }
  gdb_test "thread 2" ".*"
  with_test_prefix "thread 2" {
    gdb_test "record goto end" ".*"
    gdb_cont_to_line $srcfile:$bp_3
  }
}