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# Copyright 2002, 2003, 2004, 2007, 2008 Free Software Foundation, Inc.

# 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 .

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

# This file checks for the bug gdb/669, where the console

# command "info threads" and the MI command "-thread-list-ids"

# return different threads in the system.

# This only works with native configurations

if {![isnative]} {

  return

}

load_lib mi-support.exp

set MIFLAGS "-i=mi"

gdb_exit

if {[mi_gdb_start]} {

    continue

}

# The procs below are all stolen from mi-pthreads.exp. Any updates

# should also be made to the procs there.

proc get_mi_thread_list {name} {

  global expect_out

  # MI will return a list of thread ids:

  #

  # -thread-list-ids

  # ^done,thread-ids=[thread-id="1",thread-id="2",...],number-of-threads="N"

  # (gdb)

  mi_gdb_test "-thread-list-ids" \

    {\^done,thread-ids={(thread-id="[0-9]+"(,)?)+},number-of-threads="[0-9]+"} \

    "-thread_list_ids ($name)"

  set output {}

  if {[info exists expect_out(buffer)]} {

    set output $expect_out(buffer)

  }

  set thread_list {}

  if {![regexp {thread-ids=\{(thread-id="[0-9]+"(,)?)*\}} $output threads]} {

    fail "finding threads in MI output ($name)"

  } else {

    pass "finding threads in MI output ($name)"

    # Make list of console threads

    set start [expr {[string first \{ $threads] + 1}]

    set end   [expr {[string first \} $threads] - 1}]

    set threads [string range $threads $start $end]

    foreach thread [split $threads ,] {

      if {[scan $thread {thread-id="%d"} num]} {

        lappend thread_list $num

      }

    }

  }

  return $thread_list

}

# Check that MI and the console know of the same threads.

# Appends NAME to all test names.

proc check_mi_and_console_threads {name} {

  global expect_out

  mi_gdb_test "-thread-list-ids" \

    {\^done,thread-ids={(thread-id="[0-9]+"(,)*)+},number-of-threads="[0-9]+"} \

    "-thread-list-ids ($name)"

  set mi_output {}

  if {[info exists expect_out(buffer)]} {

    set mi_output $expect_out(buffer)

  }

  # GDB will return a list of thread ids and some more info:

  #

  # (gdb)

  # -interpreter-exec console "info threads"

  # ~"  4 Thread 2051 (LWP 7734)  0x401166b1 in __libc_nanosleep () at __libc_nanosleep:-1"

  # ~"  3 Thread 1026 (LWP 7733)   () at __libc_nanosleep:-1"

  # ~"  2 Thread 2049 (LWP 7732)  0x401411f8 in __poll (fds=0x804bb24, nfds=1, timeout=2000) at ../sysdeps/unix/sysv/linux/poll.c:63"

  # ~"* 1 Thread 1024 (LWP 7731)  main (argc=1, argv=0xbfffdd94) at ../../../src/gdb/testsuite/gdb.mi/pthreads.c:160"

  # FIXME: kseitz/2002-09-05: Don't use the hack-cli method.

  mi_gdb_test "info threads" \

    {.*(~".*"[\r\n]*)+.*} \

    "info threads ($name)"

  set console_output {}

  if {[info exists expect_out(buffer)]} {

    set console_output $expect_out(buffer)

  }

  # Make a list of all known threads to console (gdb's thread IDs)

  set console_thread_list {}

  foreach line [split $console_output \n] {

    if {[string index $line 0] == "~"} {

      # This is a line from the console; trim off "~", " ", "*", and "\""

      set line [string trim $line ~\ \"\*]

      if {[scan $line "%d" id] == 1} {

        lappend console_thread_list $id

      }

    }

  }

  # Now find the result string from MI

  set mi_result ""

  foreach line [split $mi_output \n] {

    if {[string range $line 0 4] == "^done"} {

      set mi_result $line

    }

  }

  if {$mi_result == ""} {

    fail "finding MI result string ($name)"

  } else {

    pass "finding MI result string ($name)"

  }

  # Finally, extract the thread ids and compare them to the console

  set num_mi_threads_str ""

  if {![regexp {number-of-threads="[0-9]+"} $mi_result num_mi_threads_str]} {

    fail "finding number of threads in MI output ($name)"

  } else {

    pass "finding number of threads in MI output ($name)"

    # Extract the number of threads from the MI result

    if {![scan $num_mi_threads_str {number-of-threads="%d"} num_mi_threads]} {

      fail "got number of threads from MI ($name)"

    } else {

      pass "got number of threads from MI ($name)"

      # Check if MI and console have same number of threads

      if {$num_mi_threads != [llength $console_thread_list]} {

        fail "console and MI have same number of threads ($name)"

      } else {

        pass "console and MI have same number of threads ($name)"

        # Get MI thread list

        set mi_thread_list [get_mi_thread_list $name]

        # Check if MI and console have the same threads

        set fails 0

        foreach ct [lsort $console_thread_list] mt [lsort $mi_thread_list] {

          if {$ct != $mt} {

            incr fails

          }

        }

        if {$fails > 0} {

          fail "MI and console have same threads ($name)"

          # Send a list of failures to the log

          send_log "Console has thread ids: $console_thread_list\n"

          send_log "MI has thread ids: $mi_thread_list\n"

        } else {

          pass "MI and console have same threads ($name)"

        }

      }

    }

  }

}

#

# Start here

#

set testfile "pthreads"

set srcfile "$testfile.c"

set binfile "$objdir/$subdir/gdb669-$testfile"

set options [list debug incdir=$objdir]

if {[gdb_compile_pthreads "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {

    return -1

}

mi_run_to_main

check_mi_and_console_threads "at main"

for {set i 0} {$i < 4} {incr i} {

  mi_next "next, try $i"

  check_mi_and_console_threads "try $i"

}

mi_gdb_exit